T9536-AA-MMC-010_0_A.pdf

T9536-AA-MMC-010

T9536-AA-MMC-0 I A

TECHNICAL MANUAL

FOR

CENTRAL FRESH WATER COOLER

MODEL: UX-886-HP-155 AND

U X-886-HP-123

T-A0 187 CLASS FLEET OILERS

TRANTER, INC

TEXAS DIVISION

P.O.BOX 2289OLDBURK ROAD

WICHITA FALLS, TX 76307

CONTRACT NOS. N00024-85-C-2131

N00024-88-C-2050

DISTRIBUTION STATEMENT “C”: DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT

TIVE/OPERATIONAL USE: (DATE OF PUBLICATION). OTHER

REQUESTS FOR THIS DOCUMENT SHALL BE REFERRED TO

THE COMMANDER, MILITARY SEALIFT COMMAND, CODE

AGENCIES AND THEIR VENDORS; ADMINISTRA-

N-7 WASHINGTON, DC 20390-5100.

v ART ING: THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS RESTRICTED

BY THE ARMS EXPORT CONTROL ACT (TITLE 22,0.3.0 SEC 2751 ET. SEC.) OR

EXECUTIVE ORDER 12470. VIOLATIONS OF THESE EXPORT LAWS ARE SUBJECT

TO SEVERE CRIMINAL PENALTIES.

DESTRUCTION NOTICE: DESTROY BY A N Y METHOD THAT WILL PREVENT DISCLOSURE OF

CONTENTS OR RECONSTRUCTION OF THE DOCUMENT.

PUBLISHED BY DIRECTION OF COMMANDER, MILITARY SEALIFT COMMAND

15 APR 1985

CHANGEA 01 AUG 1989

FOR OFFICIAL USE ONLY

LIST OF EFFECTIVE PAGES

Insert latest changed pages: Destroy superseded pages.

NOTE; On a changed page, the portion of the text affected by the latest change is indicated by vertical line, or other change symbol, in the outer margin of the page. Changes to illustrations are indicated by miniature pointing hands. Changes to wiring diagrams are indicated by shaded areas.

Date of issue for original and change pages are as follows:

Original.. . . . . O . . . . . . Date: I5 APR 1985

Change.. . . . . A . . . . . . Date: 01 AUG 1989

Total number of pages in this manual is 29 consisting of the following:

Page No.

*Change Page No. No.

Title Page.. ................................. A List of Effective Pages ........................ A Record of Changes.. ......................... A Approval and Procurement Record Page ........ A Technical Manual Validation Certificate i / i i iii/ iv (BLANK) .............................. A v / v i 1 th ru4 5 thru 6 . . ................................... A 7 thru 10 I I ......................................... A 13 ......................................... A 14 thru 22

23/(24 BLANK) ............................. A

25 ......................................... A 26 ......................................... A

*Zero in this column indicates an original page.

Change A

*Change No.

CHANGE

NO.

"A"

DATE

01 AUG

I989

RECORD OF CHANGES

TITLE OR BRIEF DESCRIPTION

Added Model No. UX-886-HP- I23 Applicable to T - A 0 197 and follow-on hulls.

ENTERED BY

CHANGE A

APPROVAL AND PROCUREMENT RECORD PAGE

APPROVAL DATA FOR:

T95 36-A A-M M C-0 IO

TITLE O F MANUAL: CENTRAL FRESH WATER COOLER - MODEL UX-886-HP-155 AND

MODEL

UX-886-HP-I 23

APPROVAL

AUTHORITY: Supervisor of Shipbuilding, Conversion and Repair, New Orleans, TAO-I 87/9086, Ser 200-5444, 13 Dec. 1984

CONTRACT SHIP QUANTITY OF BUILDING

NUMBER APPLICABILITY MANUALS YARD

N00024-83-C-2012

N00024-85-C-2 I I 5

N00024-85-C-2 I 3 I

N00024-88-C-2050

T-A0 187 T-A0 188 T-A0 189 T-A0 190

T-A0 191 T-A0 192

T-A0 193 T-A0 195 T-A0 197 T-A0 194 T-A0 196

T-A0 198 T-A0 199 T-A0 201 T-A0 203 T-A0 200 T-A0 202 T-A0 204

Avondale Industries, Inc.

Shipyards Division New Orleans, Louisiana

Pennsylvania Shipbuilding Co.

Chester, Pennsylvania

Avondale Industries, Inc.

Shipyards Division New Orleans, Louisiana

Avondale Industries, Inc.

Shipyards Division New Orleans, Louisiana

REMARKS: CHANGE A REFLECTS THE ADDITION OF MODEL NO. UX-886-HP-123 FOR T-A0 197

THROUGH -204

DATE: AUGUST I , 1989

CERTIFICATION: It is hereby certified that T9536-AA-MMC-010 to be provided under Contract Number N00024-83-C-2012 and N00024-85-C-2 1 I5 and N00024-85-C-2 I3 1 and N00024-88-C-2050 has been approved by the approval data shown above, except for the revisions incurred during change A as shown in the above remarks space.

Robert S. Rowland Assistant to the Vice President Tranter, inc.

List of Illustrations

I

2 General Nomenclature

3 Bolt Tightening Sequence

4 Plate Designations

5 SUPERCHANGER Flow Diagram

6 Port Hole Numbering System

7 Plate Order

8 Piping for CIP Solutions

9 SUPERCHANGER COOLER

UX-80 Series Plate and Gasket Details

List of Tables

Table

I General Technical Data for Plates

2 “A” and “B” Plate Equivalents

3 Parts List for UX-886-HP-155

4 Parts List for UX-886-HP-123

111 (iv.Blank)

PG

CHANGE A

26 25 I

1.5 Performance Characteristics

The Model UX-886-HP-155 has been sized to do the following: Cool 3600 GPM of treated fresh water from 106.5" F to 95' F using 3000 GPM of sea water at an inlet temperature of 85' F. The unit has pressure drops of 11.75 PSIG on the fresh water side and 8.60 PSIG on the sea water side.

X axis (from "S" frame reinforcing bar)

Model -155 -123 wet 35.2" 29.91 dry 37.75" 28.19

The Model UX-886-HP-123 has been sized to do the following: Cool 3600 GPM of treated fresh water from 106.5' F to 95' F using 3000 GPM of sea water at an inlet temperature of 85" F. The unit has pressure drops of 11.1 1 PSIG on the fresh water side and 8.09 PSIG on the sea water side.

Y axis (from deck)

-155 -123

64.67" 53.85

68.77" 53.91

1.6 Dimensions, weight, volume, center of gravity

Model UX-886-HP-I 55 UX-886-HP-123 weight wet, Ibs. 15,249 I2,69 1 weight dry, lbs. 12,167 10,250 liquid volume, gal. 370 length, inches 90 width, inches 51-114 height, inches 105-1/2 space volume, cu. ft. 282

Center of gravity

90-5 / 8 51-114 105-112

Model UX-886-HP-155 UX-886-HP-123 Maximum 3 1.73 25.18 Minimum 30.5 1 24.2 1 Tolerance +O,-118 +O,-118

NOTE: For reference information on Section 1.6 see Tranter drawings D-79573-1 or D-89805-2.

I .7 Environmental requirements

Protect the unit from direct sunlight, intense heat radiation, or ultraviolet radiation by loosely covering the unit with an opaque, reflecting type plastic film or similar material. Make sure air is allowed to circulate around the unit.

It is preferable to store the unit indoors, well protected from the weather. The temperature in the storage area should ideally be 60' F to 70" F with a relative humidity of 70% or lower.

CAUTION: NEVER STORE THE UNIT IN AN AREA WHERE THE

TEMPERATURE IS AT 32'F OR LOWER CONTINUOUSLY

FOR EXTENDED PERIODS.

5 CHANGE A

All potential sources of Ozone, such as operating electric motores, or welding equipment, should be removed from the storage area to preclude Ozone attack on gaskets.

1.8 List of items furnished

I The heat exchanger is a package one piece assembly as shown by Figure 9, Table 3, and Table 4 in the back of this manual. There is no cabling involved.

1.9 Storage data

If the SUPERCHANGER plate and frame heat exchanger is to be placed in storage for an extended period of time, the procedures listed below must be followed:

a. If the unit has been recently shipped from our factory and is unused, disregard statements b, c and d and follow instructions e through j.

b. If the unit has been used and long term storage is required, it must be completely drained. Remove the shroud and let the unit cool to ambient temperature. This is a single pass unit (all nozzles are on the stationary end frame) and it therefore is self draining. Simply vent at the upper nozzle location and drain from the lower nozzle for each side individually. Before opening the plate pack, wipe off the exterior surfaces to make sure no fluids or debris fall onto the plate pack.

c. Open the plate pack and thoroughly clean the unit internally and externally. Dry the unit. (Blowing dry, hot air at approximately 150°F on all areas is an excellent method.)

2.3 Tightening the plate pack

Tightening sequence

I CAUTION: DO NOT TIGHTEN THE EXCHANGER WHEN IT IS FULL

O F WATER, UNDER PRESSURE OR OPERATING.

The tightening bolts should be tightened uniformly and the plate pack length checked at all bolt locations on both sides. Referring to Fig. 3 tighten I , 2, 3 and 4 by hand as much as possible and then wrench tighten in the order of I , 2, 3 and 4 approximately I/”. Follow with the remaining locations in the sequence indicated.

Tightening limits (See Paragraph 1.6, “Tightening Dimensions”)

Tighten by this procedure to the plate pack dimension shown on the assembly drawing. This dimension is the distance between the facing surfaces of the “S” and “E” frames. This dimension is also on the exchanger data plate. The length should be checked with a metal ruler.

In case leakage occurs when the plate pack is at the minimum dimension, additional tightening by up to .6 1” is allowable.

CAUTION: TIGHTENING BEYOND THIS MIN. DIMENSION MAY

CAUSE DAMAGE TO THE PLATES AT THEIR CONTACT

POINTS.

FIG. 3

BOLT TIGHTENING SEQUENCE

t I I J

Tighten the bolts in the order indicated and per para. 2.3.

Loosen in groups in reverse order and per para. 3.2.

3. Servicing

3.1

3.2

3.3

Shutting the exchanger down.

CAUTION: THE PRESSURE OF BOTH LIQUIDS SHOULD BE

SIMULTANEOUSLY DECREASED GRADUALLY WHEN

SHUTTING DOWN A UNIT.

NEVER OPEN AN EXCHANGER WHEN HOT. IT SHOULD

BE COOLED TO ROOM TEMPERATURE BEFORE OPENING

TO PREVENT LOOSENING OF THE GASKETS.

Disassembly Procedures.

Fully loosen bolt number 9, IO, 1 1 , and 12 sequentially by use of a wrench (See Fig. 3)

Next loosen bolt numbers 5 , 6, 7 and 8 sequentially.

Finally, loosen numbers I , 2, 3, and 4 sequentially and remove all bolts from the frame.

Roll the movable “E” frame all the way to the support column.

Removal of Plates. (see pages 16 and 17 also)

There are 3 removable 6” long sections bolted into the bottom of the upper guide bar. Remove the one nearest to the “E” frame.

Tilt the first plate on an angle so it can be withdrawn from the frame. Additional plates are removed similarly. As removal continues, it will save time to take out another 6” section from the middle of the upper guide bar.

I t is preferable, whenever practical, to clean and/or inspect the plates one by one by separating them in the frame rather than removing them.

CAUTION: CARE SHOULD BE EXERCISED WHEN HANDLING

PLATES IN THE OPEN PORTHOLE AREA. ALTHOUGH ALL

PLATES ARE DEBURRED, INCLUDING THE PORTHOLE

AREA, THE EDGES MAY BE SHARP AND RESULT IN CUT

HANDS IF GLOVES ARE NOT USED.

3.4 PLATE DESIGNATIONS

SUPERCHANGER units are designed so that fluids entering on the right side of the plate always flow out on the right side (A) and fluids entering on the left side always flow out on the left side (B) (Figure 5) .

“B” PLATE 7

“A” PLATE -/

FIG. 4

PLATE DESIGNATIONS

Note how the letters A and B can be visualized in each plate based on its orientation.

3.5 PLATE ARRANGEMENT

A A or BB (placing A on A or B on B) must be avoided because the two different fluids must be on opposite sides of each plate in order that effective heat transfer be accomplished. By mistakenly arranging plates AA or BB, the unit will short circuit and there will be a loss of heat transfer.

However, because of the unique gasket and hole combination design. IT IS IMPOSSIBLE for side “A” fluid to mix with side “B” fluid even if the plates are arranged AA or BB.

FIGURE 5

SUPERCHANGER FLOW DIAGRAM

Facing the gasketed side of the plate, if the fluid flows in and out on the right side, the plate is called an “A” plate.

A plate is termed “A” or “B” depending upon gasket orientation. An “A” plate becomes a “B” plate when reversed (turned upside down) and vice versa. Figure 4 shows the difference between an “A” and “B” plate. NOTE: Every other plate must be rotated 180 degrees; i.e. A-B-A-B, in order to prevent short circuiting and loss of heat transfer. ALSO NOTE: The plate adjacent to the stationary frame is called a “D” plate and has a special gasket arrangement (see page 21 item 10).

“A” Plate 1 2 3 4 1 2 3 0 1 2 0 4 1 0 3 4 0 2 3 4 1 2 0 0 0 0 3 4 0 2 3 0

“B” Plate 1 2 3 4 0 2 3 4 1 0 3 4 1 2 0 4 1 2 3 0 0 0 3 4 1 2 0 0 0 2 3 0

“A” Plate 1 0 0 4 1 0 3 0 0 2 0 4 1 0 0 0 0 2 0 0 0 0 3 0 0 0 0 4 0 0 0 0

“B” Plate 1 0 0 4 0 2 0 4 1 0 3 0 0 0 0 4 0 0 3 0 0 2 0 0 1 0 0 0 0 0 0 0

TABLE 2

“A” AND “B” PLATE

EQUIVALENTS

h) W .

P, a n

PARTS LIST FOR UX-886-HP-155

TABLE 3

ITEM DESCRIPTION MATERIAL PART AND NO. REQ’D.

NO. DRAWING NO. PER ASS’Y.

I STATIONARY FRAME ASS’Y. SA-5 16-70 D-20244 1 I

2 MOVEABLE FRAME ASS’Y. SA- 156-70 D-202449-9 1

3 GUIDE BAR SUPPORT A.S.T.M. A-36 C-202428 1

4 UPPER GUIDE BAR, PLATED C.S. HARD CHROME C-202405- I 1

5 LOWER GUIDE BAR A.S.T.M. A-36 B-202425-1 1

B-202417- I 12 ZINC PL. C.S.

SA-193-B7 6 BOLTASS’Y.

7 DATA NAMEPLATE ALUMINUM B-202 1 I 2 I

8 NAMEPLATE ALUMINUM B-200734 1

9 DRIVEPIN C.S. A-200829 8

A-202456-2 6 C.S., CAD OR

IO GUIDE BAR BOLT ZINC PLATED

A-202457-1 6 C.S., CAD OR

I I GUIDE BAR WASHER ZINC PLATING

A-202458-1 6 C.S., CAD OR

12 GUIDE BAR NUT ZINC PLATED

A-202409 3 HARD CHROME

13 REMOVEABLE GUIDE ’ PLATED C.S.

14 GUIDE BOLT, N-I3 UNC 304 S.S. A-2024 I 1-2 9

15 TOPSHROUD GALV. C.S. .D-79573-3-1 1

16 2”SCH. 40 PIPE W/CAP PVC D-79573-1 I 12

17 SIDE SHROUD GALV. C.S. D-79573-3-2 10 0

18A PLATE, 1234 (UX-836) SB-265GR I 00202475-00 15 I I6

18AI PLATE, 1234 (UX-846) SB-265GR 1 00202475-001 5-3 36

18B “D” PLATE, A1234 (UX-836) SB-265 GR I 00202475-4009 I

18C PLATE, B1204 (UX-846) SB-265 GR I 00202475-001 5-2 I

18D “E” PLATE, A1004 (UX-846) SB-265 GR I 00202475-00 15- 1 I

19 NOZZLE, IO” RUBBER LINER NBR B-79573-5-2 4

20 BLIND FLANGE, IO” 150# R.F. C.S. SA-IO5 B-79573- I2 2

21 STUD, 51 16-18 UNC ZINC PLATED C.S. D-79573-3-4 44

22 SUPPORT LUG C.S. B-79573-13 I

A-79573-7 2

24 NUT, 7/8-9 UNC W/FLAT WASHER GALV. C.S. B-79573-14 24

C.S.

23 SPACER PLATE A.S.T.M. A-36

8-79573- I5 72 25

26 GASKET, FULL FACE NBR B-79573- 16 2

GALV. C.S.

- - STUD, 7/8-9 UNC x 4”

27 NOZZLE, IO” RUBBER LINER NBR B-79373-5- 1 2

28A “D” PLATE GASKET NBR 0020246 1-00 1 1 I

28B AB PLATE GASKET NBR 00202460-000 1 I54

29 NUT, 51 16-18 UNC W/FLAT WASHER ZINC PLATED C.S. D-2-79573-3-5 44

30 SPACER, IO” SA-240-304 A-79573-29 6

25 CHANGE A

PARTS LIST FOR UX-886-HIP-123

TABLE 4

ITEM DESCRIPTION MATERIAL PART A N D NO. REQ'D.

NO. DRAWING NO. PER ASS'Y.

I STATIONARY FRAME ASS'Y. SA-516-70 D-202441 1

2 MOVEABLE FRAME ASS'Y. SA- 156-70 D-202449-9 I

3 GUIDE BAR SUPPORT A.S.T.M. A-36 C-202428 I .--

4 UPPER GUIDE BAR, PLATED C.S. HARD CHROME C-202405-1 I

5 LOWER GUIDE BAR A.S.T.M. A-36 B-202425-1 I

6 BOLTASSY. SA-193-B7 B-2024 17-1 12 ZINC PL. C.S.

7 DATA NAMEPLATE ALUMINUM B-202 1 12 1

8 NAMEPLATE ALUMINUM B-200734 1

9 DRIVEPIN C.S. A-200829 8

A-202456-2 6 C.S., CAD OR

10 GUIDE BAR BOLT ZINC PLATED

A-202457-1 6 C.S., CAD OR

I I GUIDE BAR WASHER ZINC PLATING

A-202458-1 6 C.S., CAD OR

12 GUIDE BAR NUT ZINC PLATED

A-202409 3 HARD CHROME

13 REMOVEABLE GUIDE PLATED C.S.

14 GUIDE BOLT, 1/2-13 UNC 304 S.S. A-2024 I 1-2 9

15 TOPSHROUD GALV. C.S. D-89805-5 1-1 1

16 2"SCH. 40 PIPE W/CAP PVC D-79573-1 I 12

17 SIDE SHROUD GALV. C.S. D-89805-5 1-2 IO

18A PLATE, 1234 (UX-836) SB-265 GR 1 00202475-001 5 52

18AI PLATE, 1234 (UX-846) SB-265 GR I 00202475-00 15-3 68

18B "D" PLATE, A1234 (UX-836) SB-265 GR I 00202475-4009 I

18C PLATE, B1204 (UX-846) SB-265 GR 1 00202475-00 15-2 1

18D "E" PLATE, A1004 (UX-846) SB-265 GR I 00202475-00 15- 1 I

19 NOZZLE, 10" RUBBER LINER NBR B-79573-5-2 4

20 BLIND FLANGE, IO" 15OU R.F. C.S. SA-IO5 B-79573-12 2

21 STUD, 5 / 16-18 UNC ZINC PLATED C.S. D-79573-3-4 44

22 SUPPORT LUG C.S. B-79573-13 I

A-79573-7 2

24 NUT, 718-9 UNC W/FLAT WASHER GALV. C.S. B-79573- I4 24

C.S.

23 SPACER PLATE A.S.T.M. A-36

B-79573-15 72 25

26 GASKET, FULL FACE NBR B-79573-16 2

GALV. C.S.

SA-193-B7 STUD, 718-9 UNC x 4"

27 NOZZLE, IO" RUBBER LINER NBR B-79373-5- I 2

28A "D" PLATE GASKET NBR 0020246 1-00 1 I I

28B AB PLATE GASKET NBR 00202460-000 I I22

29 NUT, 5 / 16-18 UNC W/FLAT WASHER ZINC PLATED C.S. D-2-79573-3-5 44

30 SPACER, IO" SA-240-304 A-79573-29 6

26 CHANGE A

1 * TECHNICAL MANUAL VALIDATION CERTIFICATE

NA\'SEA 4163'3 (4-62)

T E C d N I CA; MANUAL TIT LE

CESTR4L F E S H KXTER COOLER - ?lODEL US-SS6-HP-155 -$I ; 1

DATE

Januzry 18, 1935

1 NAb'SEA TECHNICAL MANUAL NLJMBER ~9 536-u-sic-010 1

CONTRACTlTMCR NO.

S00024-S3-C-2012

I-VALIDATION

Except as stated in II, the technical manual identified above has been satisfactorily validated in accordance with all requirements of the applicable TMCR and the approved Validation Plan. The technical manual is hereby certified to be accurate and complete, and the information, instructions, text, and illustrations conform in all respects to the applicable general and detailed specifications.

II-EXCEPTIONS

EXCEPTIONS AUTHORIZED BY

SIGNATUP: OF PUELIZCTIONS OUALITY ASSURANCE OFFICER I DATE

TABLE OF CONTENTS

List of Illustrations

List of Tables

Chapter Title

1 General Information'

1.1 Introduction

1.2 Purpose

1.3 Function

1.4 Capabilities

1.5 Performance Characteristics

1.6 Dimensions, Weight, Volume, Center

of Gravity

1.7 Environmental Requirements

1.8 List of Items Furnished

iii iii

PG -

1.9 Storage.Data 6

1.10 Tools and Test Equipment

1.11 Warranty Information

Operation 9

2.1 Unpacking and^ Installation Procedures 9

2.2 Precautions Before Start Up 10

2.3 Tightening the Plate Pack 11

i

PG

3 Servicinq

3.1 Shutting the Exchanger Down

3.2 Disassembly Procedures

3.3 Removal of Plates

3.4 Plate Designations

3.5 Plate Arrangement

3.6 Plate Order

I .

3.7 Port Hole Gaske'ts

*. . . . . . ' . .. ' . * . : , . . . . . . . 4 Cleaning

4.1 Basic Cleaning Guidelines.

4.2 Cleaning By .Back, .Flushing.

Manual- Cleaning *,I* . % . : - / .

4.3

4.4 Removing Lime Deposits

4.5 Cleaning by CIP

5 Trouble Shootina

5.1 Indication or Symp-om of a Defec-ive Plate19

5.2 How to Find a Defective Plate 19

5.3 Defective Plate Removal 20

6 Corrective Maintenance 21

6.1 Replacing Gaskets

6.2 Gasket Storage

6.3 Lubrication

ii e a e a e a e a e e e e e a e e e

I e a a e e e e e I e a e e e a e e a e e a e e a e e a e e e a e e e e

I The following WARNING, CAUTION, and NOTE paragraphs rppkar in various chapters of this manual. They j u e repeated on these Safety Summary Pages u an example m d for emphasis.

I I I operator.

WARNING paragraphs must be observed t o prevent serious injury, or death t o the

CAUTION paragraphs must be observed to preventdarnage or destruction of equipment or loas of operating effectiveness.

NOTE paragraphs must be observed for essential and effective operating procedures, conditions, and K a statement to be highhghted.

I t is the responsibility and duty of all personnel involved in the operation and main-tenance of t h i s equipment to fully understand the WARNING, CAUIION, and NOTE procedures by which hazards rre to be reduced or eliminated. Personnel must become thoroughly familiar with dl aspects of safety and equipment prior to operation of maintenance of the equipment.

CAUTION

NEVER STORE THE UNIT I N AN AREA WHERE THE

TEMPERATURE I S AT 32'F OR LOWER CONTINUOUSLY

FOR EXTERDED PERIODS, (PAGE 5)

CAUTION

DO MOT TIGHTEN THE EXCHANGER WHEN I T

OPERATING. (PAGE 11)

IS FULL OF WATER, UNDER P R E S S U ~ OR

a I a I e . -a e e I a a a e e e a e e

CAUTION

TIGHTENING BEYOND T H I S M I N . M I N .

DIMEKSION YAY CAUSE DAMAGE TO THE

PLATES AT T H E I R CONTACT P O I N T S .

(PAGE 11) -

CAUTION

TEE PRESSURE OF BOTH L I Q U I D S SHOULD BE

SIMULTANEOUSLY DECREASEC GRADUALLY WHEN

SHUTTING DOWN A UIU'IT.

e e e e e e e e e a e a e e e a e e a e e a e e e e e a e a e e a a a a a e e a e a a e e e e e e e e e e a a e z m I e e e e e e e e a e e e e e e e e e e e a e w e a e e e e a e e a NEVER OPEN AN EXCHANGER WHEN HOT. I T ... -. e e e e e

I SHOULD BE COOLED TO ROOM TEMPERATURE

a BEFORE OPENING TO PREVENT LOOSENING O F

THE GASKETS. (PAGE 13) a a

~............m...... m D m w m * * m m m m m m m m m m m D m m m * m m m * * m m m m m m m m m m m m m m m w m m m w m m m m m m m m * m m m * m m * * m * m m m m . * * m * m m D m * . m D D D m m m m m ~ e e e e a

V

I N CUT H A N D S I F

NEVER OPEN

I I . -.

WARNING

CARE SHOULD BE EXERCISED WHEN HANDLIMG

PLATES IN THE OPEN PORTH'OLE., AREA, ALTHOUGH

ALL PLATES ARE DEBURRED, INCLUDING THE PORT-

HOLE AREA, THE 'EDGES MAY BE SHARP AND RESULT

GEOVES ARE NOT USED. [PAGE 1 3 ) -. .,

CAUTION

NEVER

-(PAGE

USE A S T E E L

I .

. . 3 7 )

THE EXCHANGER WHEN HOT. (PAGE 1 6 )

CAUTION

BRUSH'OR STEEL*WOOL ON THE PLATES.

. . . . . . . _ _ . i. .\ . , . . . - . . i-' . . ;E. ' .. :.. . -

THE GASKETS MUST BE WIPED DRY W6TH A. CLOTH.

WARNING

e e

- e e e

(PAGE 1 7 )

WORK I S COMPLETED. - ( P A G E 17):

CAUTION

IF ONE DEFECTIVE PLATE IS REMOVED,

THE ADJACENT PLATE MUST ALSO BE

RENOVED. (PAGE 2 0 )

CAUTION

e e e e e a e a B e e e e e e e e a 8 a a e e e e

N I T R I C ACID L I Q U I D OR FUMES CAN CAUSE S K I N BURNS.

RUBBER S U I T S 'AND ''GLOVES!-P;ND -SP;-FETY GOGGLES AND

RESPIRATORS SHOULD BE WORN. THE SAFETY . .. GOGGLES

SHOULD SEAL T I G H T L q AROUND T H E FACE. ' -'THE. WORK

SHOULD BE DONE IN A WELL ~ E N T I L A T E D 'AREA. (PAGE 1 7 )

2 - , . . . . - . - . < . - , I .. , ., .. Li. . .

_ _ 0 .;

r -C~,W~-~IQ,N .: . . - i'. : ' .- . c

I.. .

NITRIC ACID LIQUID OR FUMES WILL ATTACK CARBON

VENTILATED AND WASHED DOWN ' S E V E ~ A L TIMES WHEN

S T E E L EQUIPMENT. THE WORK AREA SHOULD BE WELL .

HARDENING ADHESIVES

ARE NOT TO BE USED. (PAGE

CAUTION

1 GENERAL INFORMATION

1.1 Introduction

The SUPERCHANGER plate and frame heat exchanger consist of corrugated titanium heat transfer plates with NBR elastomeric gaskets around the perimeter and the corner ports. These plates are supported and located by upper and lower guide bars. They are compressed between the stationary and movable?*frames by the tightening bolts. See FIG 1, Table 1, and FIG 2.

. . 1.2 Purpose . .

The purpose of the heat exchangers is to cool fresh water by use of sea water. Fresh water is pumped through the spaces between every other plate in one directgon while sea water is pumped through alternate spaces in the opposite direction.- - _ _ c - : -

1.3 Function

:;,.I , , , . I >:..'i : 5 I _... ' J . , . '

The function. is to.-prg*de, cold,;.fre$h - . . water for:

- Propulsion '&;-*e': Lube ,OiT - Coo1;ers . . - .A* . . ' . - ,.-

- Propulsion-.Engbe *Air Coolers . ..... .'( , , . . ',,- _ _ '

- Reduction Gear Lube Oii Coolers

- Ship's Service Diesel Generatgrs ,, . - . . . and Attached

- Air Conditioning Condensep . , : - - . ,

- HP Air Compressor : I -. - . ..

- Ship's Stores Refrigeration . ,iondenser-s . _.. .

- Starting Air Compressor.

- Engine Room Control Station A/C Condenser

- Feed Test Coolers

- Fresh Water Drain Collecting Tank

- PTO Generator Air Coolers

- Synchronous Compensator Air Coolers

- Contaminated Drain and Inspection Tank

. . t _

. . - . I

Ami 1 iar ies

- M.E. Injector Water Coolers 1'

1,.4 Capabilities

These exchangers develop high heat transfer rates as a result of the turbulence set up by the corrugated plates. Data on the actual heat transferred is given in the following section, 1.5, on performance characteristics.

FIG. 1 U X - 8 0 S e r i e s P l a t e E, Gasket Detai ls h w a t as i

- I .

have l i c t u r have c i e n c a t e n ( . 024

BLEED PORTS A BLEEDPORTS -7

Plate

Gasket er cooler n d i c a t e d t!ie h e r r ed .

a s t e e p e

Y e

.umber on ' I ) p l a t e s have t w o on t h e ingbone r a n g l e t h e drawing t h i c k n e s s .

Each plate has a molded one piece boundary gasket which is glued into the continuous gasket groove in each plate. The liquid flowing on the surface of each plate flows on the inside of each boundary gasket. If one of the liquids should leak beyond a boundary gasket, i t will flow to the outside of the unit. thus preventing any possible intermix. Each porthole gasket contains four bleed passages allow-ing this to be accomplished.

TABLE 1

GSNEiiAL TECENICAL DATA FOR PLATES

DATA DESCRIPTION

UX-836

UX-846

Heat Transfer Surface Per'Plate (sq.ft.) 18.3

Plate Width -. . . (mi 40-13/16

Plate Length

Plate Thickness

Porthole Diameter

. i . "

, .~ , . ' .. . - I . - , , . . _ , . -3;

"S" FRAME - .

UPPER GUIDE BAR

SUPPORT COLUMN

INSPECTION

S T I F F E N E R S

LOWER GUIDE BAR

GENERAL NOMENCLATURE FOR MODEL 8 1

F I G . 2

1 . 5 Performance Characteristics

The heat exchanger has been sized to do the following:

Cool 3600 gpm of fresh water from 106.4"F to 95°F

I . x axis' I wet = 3 5 :2"- f.rom left 'end d r y = 37;.75'! -:y.-.l';:.: . ., ' . 'I

4 . .

$ I - ..

by the use of 3000 gpm of sea water at 85°F inlet with a pressure drop of 11.75 psig

Y axis

64.67" from deck

68.77" It on the fresh water side and 8.6 psig on the sea water side. ,

1.7 Environmental requirements .

Protect the unit from.direot sunlight, intense heat radiation, or ultraviolet radiation by loosely covering the unit with an opaque, reflecting type plastic film or similar material.

Make sure air is allowed to circulate around the unit.

It is preferable to store the unit indoors,'.well protected from the weather. The temperature in the storage area should ideally be 60°F to 70°F with a relative humidity of 70% or lower. -

CAUTION: NEVER STORE THE UNIT IN AN AREA WHERE THE

TEMPERATURE IS AT 32°F OR m R C o ~ I ~ o U s L Y

I _ _

FOR EX"DED PERIODS. I

All p o t e n t i a l s o u r c e s of Ozone, such as o p e r a t i n g e l e c t r i c moto r s , or we ld ing equipment , shou ld be removed from t h e s t o r a g e area t o preclu2.e Ozone a t t a c k on g a s k e t s .

1 . 8 L i s t of items f u r n i s h e d

The h e a t exchanger i s a package one p i e c e assembly manual. There is no c a b l i n g i n v o l v e d .

as shown on dwg. f i g . 9 i n the back .of t h i s _-

1 . 9 S t o r a g e d a t a .

If t h e SUPERCHANGER p l a t e , a n d f rame h e a t exchanger i s t o be p l a c e d i n s torage. -f.br a n ex tended p e r i o d of t i m e , t h e p r o c e d u r e s l i s t e d be'low must be fo l lowe2 :

a.

s . .

If t h e u n i t .h& been 'rec.en;t'ly. . . . s h i p p e d from o u r f a c t o r y and. i s.. '.unused ,' . ,d. isregardj s t a t e m e n t s b , c and d and f o l l o w i n s t r u c t i o n s e th rough j .

I f t h e u 'ni t ' has:'been us,ed' and long,' t e r m ' s torage. .- . is . ' ,re-c&:i,rdd,,:; 'it', must.'be : comple le ly drained,'. .,:'-Rernovp .the? s'hra'uq .and;I!et t h e u n i t cool- t o .ambient tempera tu ' re . T h i s i s a s i n g l e , p a s s u n i t , (.a.ll n o z z l e s are on t h e s t a t io 'nary . 'enb'lframe;) .: and; 2 t theryef or e is n o z z l e l o c a t i o n ' h n d &a- in 'from. tkie 'lower n o z z l e for e a c h s i d e i n d i v 5 d u a l l y . B e f o r e opening t h e p l a t e pack, wipe o f f t h e e x t e r i o r s u r f a c e s t o make s u r e no f l u i d s or d e b r i s f a l l

Open t h e p l a t e : pack' and t h o r o u g h l y c l e a n t h e u n i t i n t e r n a l l y and e x t e r n a l l y . Dry t h e u n i t . (Blowing d r y , h o t a i r a t approx-i m a t e l y 1 5 0 ° F on a l l areas is a n e x c e l l e n t method. )

. . . . . . .. . . _ . ,: - .. . .. .. .-- - 1 . . 1 ._ - . - . , . .,,. . I: . _ < 1 r , : , . , , - . . "

. 7'.

b.

self dra.Tflifi.&i'-;g ~.$mp~$' ;vent ' . a t : the ' . uppe r

. . o n t o t h e p l a t e pack c.

d. Install blind flanges with gaskets on all nozzles.

Plug all other openings.

e. Coat all unpainted carbon steel component surfaces with light grease. SAE 30 oil, or other rust inhibiting products. . .

.. f.. Coat all bolt threads with .l,i,ght grease.

length dimension needs to be adjusted. This must be greater than the'unit''s stated minimum tightening dimension (T.D.). .As's guideline, the unit's minimum tightening dimension should be increased by a factor of 1.20 (e.g., 31.73" T.D. x 1.20 = '38.07").

Protect the: .unit. frbm .d.ir:ect sunlight, intense covering the unit'with' an"opaque, reflecting type plastic film or.. similar material. Make sure air is allowed: . to' . . cikcuiate . a : . - . , . .,.around"the ... I . --. unit.

i. It is pref2raLle.t tore the unit indoors, well protected from the weather. The temperature in the st0rag.e. ,ar shou,ld iLd9al,ly-. be 6 0 F to 7 0 F with a r e h t dgty' pf: 7LQ:%;, or; lower. NEVER STORE THE::U~ 'ARE&.'wHE@,THE TEMPERATURE IS

AT 32"F'.OR' L

electric' motor's, 0.r welding, equipment, should be removed from the.. Is't.or.age-', attack on gaskets:. . .';

g. To minimize gasket<compress.i.on set, the plate pack h.

, heat rad.iation, o r 'ultravi'olet radiation by loosely

. _ _ . .. . 1 .: ',::. A - . . I .

,-)a; P~RIQDS - a SUCH AS SEVERAL MONTHS.

' 1 ' . , . . . . . . ,, 1 ,.- ,.-. ' ' .* j . All potentia1,:s'ouFc-es' - .,at O'F. ...*.._ Qz.bne., " ecsu.c.h as operating

I q.3~0. p,r#eclude Ozone 1 . . .. I .

~ . .. , ,. . . - _ _ . - . . . * . I , . . : . > _. :::-' : . .. . . _' 2 . - . .

1.10 Tools and test equi'pment ' . ' .' ..

a. A small crescent wrench is n,eeded to remove the shroud nuts.'

b. A long handled ope'n end or box end wrench for 2 3/4" OD nuts is required for opening and closing the exchanger.

C. Flashlight

d. A small inspection mirror for checking for leaks under the exchanger.

e. A tape measure to check the plate dimension when tightening.

f. A Salinity meter.

g. Tenperature and pressure gauges normally installed in the piping near the exchanger.

' . I

I

1.11 Warranty information : . i .

Tranter warrants the products sold by it to the buyer to be free- from: defect& in material or workmanship under normal use and conditions for a period .of one year. from date: of shipment by Tranter. Tranter's liability. to the buyer under this warranty.shall'be limited.'at Tranter's choice to :repladement:<at its factory of any part or parts .thereof which T'ranter.'.determines to be defective after inspection th,ereof at its factory, or to refund of the purchase price.

In no even,t.."sRall Trant,er.- be:. li'a'ble' for conse-quential '-6t spec'iaI':d'amage.s, ' or-'.for, any expense incurred as> ka..'resu,lt of .. .use of its .

product, irrespective of whether same may be proven: defective under*'!the" kakrahty ._ Tranter purchase price of the goods and/or services furnished by Tranter.

The .SUPERcHANeER.-per$orh&nce guarantee is based on the customer's ability to supply product and operatirig.,condit:ons"in'conformance with the data to'',whicfi'the unit was originally sized.

This warranty is made in lieu of all implied warranties of:merchantabllity:and other warranties, 'oral, statutory or implied, and it is agreed that there are no other warranties than as stated above.

liabilcey shdll.,.?n-"n& :kvent' gx'ceed' th'e

-. 1 , . . . . - * , -, , , i , , . I . . . . .... . . ~ . .

2 . OPERATION

2.1 Unpacking and installation procedures

a.

b.

C.

d.

e.

f.

9.

h.

i.

1.

k.

1.

m.

n.

0.

P-

Lifting eye-holes are provided for transportation and installation by crane.

The unit should be bolted securely to a level deck.

Anti-sway braces from the top of the frames and the rear support column to overhead structural members may be required to minimize vibration.

Approximately 3 ' of working area.around .... the unit should be provided.

The piping 'to the exchanger should allow movement inherently: in the piping:.or by flexible connections.

If the uni,tjti. has b.ep opened,, ; b e , sure the gasket areas are fr,ee o f : sand,.-:gravel, I pieces of iron, etc. before,,:clos:ingb .:Debris: can .cause damage to

The unit; sho,uld,.alwayfi,be tightegeg. to plate pack dimension per- as.sem,b,ay..draw.~nq~ pgior. to making any assemblyi-,conne,c:~,;iorjs= . - ,,.,' .., I:. ',: J

The p 1 a t e,. p-a c k :, .s hpuil d 1' biz _. p g fi 1 y -, t i g h t en e d on e a c h side of the.: , .~ .,. uniti - . . .:, - ..LSe@,-! . ., t&ght$pkpg+. -_ jnstructions , Make sure connecting piping is flushed of all debris prior . . . . . ,.to. . . . hopk.-pp.,y&th: - . . . . . . . - $,he,.:heat . . . . . ,exchanger.

. - - . . I (::: : ! - . =.,,;, : . , .

When inserting. 5 . g a s F ~ t , . > - % between - . _. d ' J 2 _ I . . ..pipe . flanges, make sure it is 'cen,$eTed. . . . I . cqrreot1y':between . . . . . . . . . the flanges.

Place pipe ,supports as. cEoSe-.td . . . . . . . . . the connections as possible.. so that . . . . . . . . . . . . . valves and. .piping do not apply

Shutoff valves are recommended'at all port locations.

due to therma.1 expansion. ,This can ... be accomplished

. . . . . . . . . . . . i L !

. ,. , . " - , . , the gasket.%: , . . . . . . ' -. .

' 8 : :_ .; : .i y -.,: ':- 1. i . ' L. , - - - .

_. . , , . . ; , . _ . . - . . . . . . ....L . :.,- . . . -

_ _ .-\ . i . . . . . . s-. _ k . . .

.. - . . 4 . -_ ...

. . 2.3). . -.*, ~; ::-;: :,:: I- - ' ' -

. . . . . . . - .. 'f . .

. ..... . . . . . . _ - _ .. . r . , . . , - ' 2 t ,': I., f loads to the,-: parp. . , - . . " ' . t .

Vent l ines , i f required, should be placed a t the highest positions possible.

Pumps sending liquids into the SUPERCHANGER should be provided with throttling valves.

If the maximum pressure output of the pump is greater than that pf the heat exchanger, a safety relief valve should be installed.

When a pressure control valve is installed, it should always be placed at the inlet of the heat exchanger and never at the outlet, even if a pressure control switch is provided.

0 '

2 . 2 Precautions before start up ' L 2 a.

b.

C.

d.

e.

f.

g-

Before starting the unit and after piping has been completed,' the inside of inlet and outlet piping to the heat'exchanger should be cleaned to prevent entrance of gravel, sand, welding flux, etc. into the plate assembly. Damage to the plates and gaskets could result if the unit is contaminated with solid matter.

Confirm that the plate pack length is correct.

1 , .

Start -pumps 'knd' increase the, 'pres.sure by opening

ERCHg&fj.UiiitS, . , . ' kan withstand single side pressures in 'ekc'ess '.of design pressure without 1eakage;';:it' *i,s"::rec,oxi@ended :that the inlet valves for both f1;uids': , ~ ~ " 8 p e q e d , . s i m u l t a n e o ~ s l y . I t o avoid extreme re on diiiS,'si@k.?; . . I - _ ~

The amount of heating or cooling should be controlled by throttling valves in conjunction with product thermometers.

ye slowly. . - .

c

. . a . . t

' CAUTION : TIGHTENISJG I B2YO?'D ,THJ?S. M I N I M I N .

DIMENSION ~Y .'?4US,E. DAMAGE "TO THE

PLATES AT EIR dCON~ACT ' POINTS.

2.3' Tightening the plate pack

Tightening sequence

CAUTION:

u-

OPERATING.

The tightening bolts should .be tightened uniformly and the plate pack length checked at all bolt locations on both sides. .Referring to Fig. 3 tighten 1, 2, 3 & 4 by hand as much as possible and then wrench tighgen in the order of 1, 2, 3 & 4 approximately +'' locations in the sequence indicated .- Fo1lo.w with the remaining

FIG. 3

Bo1 t

. . . . .. ' . ! 2 . - . . . . . .. i ' - .

1 '-' 1

T i g h t e n t h e ' '.bblt.s in- t h e ' o r d e r . ' i n d i c a t e d p e r p a r a . 2 . 3

Loosen i n g roups i n r e v e r s e o r d e r p e r p a r a . 3 . 2

1 2

3 . Servicing

3 . 1 Shutting the exchanger down.

CAUTION: THE PRESSURE OF BOTH LIQUIDS SHOULD BE

SIMULTANEOUSLY.-.DECREASED GRADUALLY WHEN

SHUTTING DO*, . . . SA -U%I-T.? , < '

. . I . ... -_ I

NEVER OPEN AN '-EXC~ANGER WHEN HOT.

SHOULD BE.,.. COOLED TO .ROOM TEMPERATURE

THE GASKETS.,, : - . - . _ _ ..-:- .

IT

BEFORE OP$NIFJG TO PREVENT LOOSENING OF

1 :

I f-- ' ' -' - :

t ! , 3 .2 Disassembly Procedures. " _ - __ - I .

Fully loosen'bolt' nfifnk-ei%-9~,-.10~;, 11 & 12 by use of a wrench (See Fig.' 3) _- . .,I

Next loosen bo.lt number.s..5;. -6i,i 7 & 8 .

1 .

1 .!

. Finally, loosen 'nimbers 1:; .2,"3!'& 4' and remove all bolts from the frame-. - i

Roll the movable "E1'! frame all, the:y'ay to the I : . _ i

1 . : . . " support column:. .- , , ; :: 1. . - , I . ' \ _ . . I .

: 1

- 7 : :. '

3 . 3 Removal of Plates. (see pg.sh. -16:.&d.l7 . , . . also) . . . . ' . I \ . >

There are 3 remov'Able=6-"' .:lon$-.:'sectf'bns bolted into the bottom of the upper guide bar. Remove the one nearest to the., "E" frame..

Tilt the first plate on an angle so it can be withdrawn from the frame.. Additional plates are removed similarly. As' removal continues, it will save time to take out anothe'r 6" section from the middle of the upper guide bar.

It is preferable, whenever practical, to clean and/ or inspect the plates one by one by separating them in the frame rather than removing them.

h'ARNING: CARE SHOULD BE EXERCISED WHEN HANDLING

PLATES IN THE OPEN PORTHOLE AREA. ALTHOUGH

ALL PLATES ARE DEBURRED, INCLUDING THE PORT-

HOLE AREA, THE EDGES MAY BE SHARP AND RESULT

IN CUT HANDS IF GLOVES ARE NOT USED.

: . 4 PLATE DESIGNATIONS

SUPERCHANGER units are designed so that fluids entering on the right side of the plate always flow out on the right side (A) and fluids entering on the left side always flow out on the left side (6) (Figure5).

I .

- .- .. .I . _ "B" PLATE 7 1 . . , . . I

. 1

- , i

' - I

. FIGURE5

: * SUPERCHANGER . . FLOW DIAGRAM

'1 I

. j, i/ "A " PLAT E

i. .. I . j .

t' ,.. !! I.

' Y , FIG. 4

PLATE DESIGNATIONS'- ,.>. :

Note how t h e l e t t k r 4 - A ' 6 B:;;, :'.-.

'f can be v i sua l i zed ' in each , / ; ,-..,:

p l a t e based on i t s orientat-i,gW. ..

- . 5 PLATE.ARRANGEMENT . . .

AA or BB (placing A on A or B on B) must be avoided because the two different fluids must be on opposite sides of each plate in order that effective heat transfer be ac-complished. By mistakenly arranging plates AA or BE. the unit will short circuit and there will be a loss of heat transfer. How-ever, because of the unique gasket and hole combination desisn. IT IS IMPOSSIBLE f o j side "A" fluid to mix with side "B" fluid even if the plates are arranged AA or BB.

Facing the gasketed side of the plate. if the fluid flows in and out on the right side, the plate is called an "A" plate.

'A- plate js Ttermed "A" or "B" depending ilpon-Aj-aaSkef orie'ntation. An "A" plate be- Eornes'a "B"'plate when reversed (turned upside down) and vice versa Figure 4 shows the difference between an "A" and "B" plate. NOTE: Every other plate must be rotated 180 degrees; i.e. A-B-A-6, in order to prevent short circuiting and loss of heat transfer. ALSO NOTE: The plate adjacent to the stationary frame is called a"D" plate and has a special gasket arrangement (see page 21i tem 10).

."A" Plate "6" Plate 1 2 3 4 1 2 3 4 1 2 3 0 0 2 3 4 1 2 0 4 1 0 3 4 1 0 3 4 1 2 0 4 0 2 3 4 1 2 3 0 1 2 0 0 0 0 3 4 0 0 3 4 1 2 0 0 0 2 3 0 0 2 3 0

"A" Plate "B" Plate

1 0 0 4 1 0 0 4 1 0 3 0 0 2 0 4 0 2 0 4 1 0 3 0 1000 0 0 0 4 0 2 0 0 0 0 3 0 0 0 3 0 0 2 0 0 0 0 0 4 1 0 0 0 l 0 0 0 0 0 0 0 0

TABLE 2

"A" AND "B" PLATE

EQUIVALENTS

I 15

I 3 . 5 PLATE ARRANGEMENT (cont . ) As shown in Figure 6, the pierced holes at the corners of the plate are designated as: 1 for upper left, 2 for upper right, 3 for lower left, and 4 for lower right when facing the gasketed side of the plate. Plate 1 in Figure6 is represented by A1 234 and plate 2 by 61 234. When no hole is provided at a position, it is represented by a 0. Therefore, plate 3 is represented by A1200 since there are no holes at position 3 (lower left) and position 4 (lower right).

Plate 4 is represented by 81230 since there is no hole at position 4 (lower right) and holes are in all other locations. T a b l a $ Pagel4shows A & B plate equivalents when an “A” plate is rotated to become a “6” plate.

(1) 1. (2)

A1 234 B1234 A1 200

F I G . 6 P o r t hole numbering systemi’. , IN ASS EM BL I N G, THE GASKETED’SI &I IS

OF THE PLATES ALWAYS:FACE;.rBHE STAT I o N A R Y M E M B E R AN D .FA” @LAT ES

AND “B” PLATES ARE ALWAYS”+

RANGED ALTERNATELY. (EIGURE 7j;:

. - ,, e * ’ :: 3 :. ‘. (.I’

. .d .~ .

. ? . . - . . ,: : 3 d’, t ., : :- .

c . . . I .. . , . - . , . , , ’ ‘ i ::I

B1230 x x

B

? I G . 7

A

. . ._ PLATE ORDER

. i c {. , - r . , 4 . CLEANING

4 . 1 Basic G u i d e l i n e s

I n o r d e r t o a v o i d damage o r c o r r o s i o n t o p l a t e s and/or g a s k e t s from c l e a n i n g o p e r a t i o n s , t h e f o l l o w i n g g u i d e l i n e s are recom-mended :

1 CAuTIorJ : NEVER OPEN THE ~XcvfipGEE -WHEfiA HOT.

Never c l e a n t h e p l a t e s w i t h a s teel b r u s h or s teel wool.

Always wipe t h e gaske. ts c&eah..'befor,e c l o s i n g t h e u n i t t o p r e v e n t damage .. r e s u l t i n g , _ " . _(r .: from . . a d h e r i n g - p a r t i c u l a t e .- matter .

Always u s e c l e a n . water -(fre&.from salt.,,.. s u l p h u r o r h i g h i r o n c o n c e n t r a t i o n s ) f o r f l u s h i n g and r i n s i n g o p e r a t i o n s .

I f steam i s used. a s . a sgeKi, l iz in .g media, d o n o t exceed 2 7 0 " F s team temper a t u r . e., k i : t h ' n,i..$ri l e .g.as k e t s .

I . . .

' f . 1 . . . . . . -, : :, .I _. . - L. - I. I :- * . . . - . _ . , . . . . . c ' . - I .

I f c h l o r i n a t e d s o l u t i o n s 'are -used.^as" " t h e ' . c l e a n i n g media, t h e y shou ld be a t min , imp ooncent r .a t ipn * a t .the. . lowes t t e m p e r a t u r e p o s s i b l e w i t h t h e 'miniqkmi e.k$6.s-uk.e..fi-me . to t h e p l a t e s .

c o n c e n t r a t i o n s hou id -'not. ' Fxceed. .. 1 0 0 .P,Phf ",aT temper a t u r e s n o t h i g h e r t h a n 100°F 'with' a -maximum exp'osure tinre t o t h e p l a t e s o f 1 0 minu tes . C l e a n i n g s u p p l i e r s r e e m m e n d a t i o n s r e l a t i v e t o c o n c e n t r a t i o n , t e m p e r a t u r e and treatment'-'time'"-should be f o l l o w e d .

C o n c e n t r a t e d cle-aning. . : so lu t ions -sh:o.uld al.w-a.ys be added t o water b e f o r e c i r c u l a t i n g - . t h r o u g h - e , . .. . . . . . - . . . , t h e u n i t .

I f r u s t e d o r p i t i e d areas appear-&' the p l a t e s , t h e y shou ld b e removed w i t h co&erc$ai.sc,duririgi@awd:erj.followed . . . ... by f l u s h i n g w i t h c l e a n water.. - .:.

C h l o r i n e

....... -. . . . . . . . . . L: . . . . ; . . . . . . . . . . . . .C . . . . _ , . _ . . . - - - , ,

- . . ! . C

Never i n j e c t these s o l u t i o n s 6 "7 * w h i l e t h e water_ 4s 'c ifcu~atfng'$ ' . '~L T- :: ' - . -

. . . . . r - . - . . .< . . - .... . . . . . . . . . . . . . . - ... . _ _

1. i. : . j ,.{ .E -7; ?-; ,c - :

Clean ing solutionsa'shon$il^always b e : c i k e u l a f e d w i t h a c e n t r i -f u g a 1 pump. . .'.f , . f ,. , . ^ . _ . . . . . * . . . . . .*

, I

. . . ..... I . . . . . - .

4 2 CLEANING BY BACK FLUS'HING : ' . :.' . '

O f t e n , when f i b e r s or l a r g e p a r t i c u l a t e s are p r e s e n t , back f l u s h i n g of t h e u n i t p roves t o b e v e r y b e n e f i c i a l . T h i s may be accomplished by e i t h e r of t h e f o l l o w i n g methods:

1. F l u s h t h e u n i t w i t h c l e a n water i n r e v e r s e f low a t 1 t o 1% t i m e s p r o d u c t f l ow.

2 . Arrange p i p i n g and v a l v e s so u n i t may be o p e r a t e d i n r e v e r s e f low mode on t h e sea water s i d e f o r c e r t a i n p e r i o d s of t i m e .

Open the unit i n accordance with disassembly procedures.

Each plate should be cleaned separately.

of cleaning to be performed, the p l a t e can be cleaned while s t i l l hanging i n the uni t or removed, placed on a f l a t surface and cleaned.

Depending upon the amount

CAUTION: E V E R USC'A 'STEEL , . . SRt'SS* . . . . . - . OX ; . . STESL k;OOL OX 3 E PLXTZS.

. . . - . . . . . -. . - . . . . - , s .

I f a b r u s h is req'u'ired ,. a ifibeY: ky?& y3.S: recmmende?.

B2 c a r e f u l n o t t o s c r a t c h t:?e s z s k e t s u r f a c e s .

A f t e r brusking, e a c h . ._. . place.' ... si50c%8 ,. ;be* kFnse2' v i t h clez: water.

CkL'21'3N: TXE GASKETS W S T -3E FI-?SD D3Y N1Ti-I A CLOT:.

' 7 . : r z . . -, I ~. . . . . . . . ~ ..

. . . . . . . - . . . . - < 3 . . r . ; . . ~ - . .-t-la , _. . _ _ , ,, .I.. ~ . , . _

S o l i d p a r t i c l e s adher i -ng t o t h e - -. z g a s k e t s . -f c a n c a u s e Zamage and may r e s u l t i n leakage' . when. the' ~u'n$t~-x$ . - .... put:%ack i n o p e r a t i o n . The lower p o r t i o n o f ' e&ch .plaYg'. should'.b'e'''iri.spected c a r e f u l l y and c l e a n e d a p p r o p r i a t e l y as t h i s i s t h e pr imary a r e a where r e s i d u a l s o l i d m a t e r i a l tends, to. ,pcc L,;: ;; .,,;- . - .

U?cn com?Ietion o ~ r L j . e < n i i i p ; . n ~ .,~i.rigi 7 i'" , -. ?=tion of each p l a t e , t h e u n i t may be. c1;ose'd 'an& ti.g:h$efi&d 'p'er: assembly e rawing and t i g h t e n i n g i n s t r u & i o n s , ,~~ane~p~~:ba.ck,,i'r,t6 . 1 . . . r3 . . ,: , " - opers. ..

1 ---I ' _ . . . . . . f > - .

.:.s L. .e t i o n . . . . -7 .: , : , I

P r e c i p i t a t e s of c a l c i u m corr,-,oxds from c o o l i n g water and o t h e r s o u r c e s can be ren6ved ' if l-Xhe. ?alTowing . . manrier:

J: !I! .:,.: - -i .> :, .- , i...i..t K e t t h e p l a t e a t room tem2e , r ! a$u~evy l th i3 s o l u t i o n of Xitr ic Acid (1 volume c o n c s n t r a t e d Xi t? ic -Acid ( s p e c i f i c g r a v i t y 1 . 4 1 ) . .,g,o. 9 N.ol~umgs:..gf,water): ........ a n d . . l e t s tand. for approx ima te ly .5-10 -m&;?,utqs. -'. Kater . , r ins&". .and . . > t h e n f i b e r b rush . I f n e c e s s a r y , r e p e a t ch i s o p e r a t i o n s e v e r a l times.

. . . . . . . . . . . . - .c i v ,'

Upon comple t ion QE a c i d t r e a t i n e n t , n e u , t r a l i z e w i t h a 2 i l u t e c a u s t i c s o l u t i o n f o l l o w e d - b y a c l e a n water r inse.

I S R K I N G : N I T R I C A C I D L I Q U I D OR FUMES CAN CAUSE: SXIX 3 U R X S .

RUEaER S L ' I T S AKD GLOVES ASD SAFETY GOGSLZS ABD RESPIRATORS SHOULD BE WORN. TIiE SAFETY GOGGLES SHOULD SEAL TIGHTLY AROUND THE FACE. T 3 E t;O.3I( SHOULD BE 30XE IN A \<ELL VEI:TIL.&TED AFlZP..

. 1 7

4 . 5 C l e a n i n g by C I P e C l e a n i n g i n p l a c e ( C I P ) i s a method t h a t c a n be u s e d d u r i n g s h u t down p e r i o d s . D r a i n p i p i n g shou ld be i n s t a l l e d t o a v o i d c o r r o s i o n of t h e p l a t e s due t o r e s i d u a l l i q u i d s l e f t i n t h e u n i t a f t e r a n o p e r a t i o n c y c l e .

TREATEU

WATfFR OUT

O Q -

. . ..,_ , . : i," . . . . .. . . r L . ' :j- JT .: L. . .,'

- 2

To p r e p a r e t h e .uni.ti.fq+ a,. .. . , t h e . , ._ ..f-o&lo.wi,ng - I. . . p rocedures - s h o u l d

Dra in b o t h s.id-gs! ?,f....the, uni.t.-,,- ... .- - -. I f ,it -,is, n o t p o s s i b l e t o d r a i n , push l i q u i d s - . - o u t o f t h e u n i t :$,th f l u s h w a t e r .

F l u s h t h e u n i t , . o n --bqt& ?.&-des , F i t h w a r m w a t e r a t approx .

l l O ° F u n t i l t h e e f f l u e n t water i s clear and f ree o f p r o d u c t .

D r a i n t h e f l u s h water from u n i t a n d - c o n n e c t C I P pump.

be fo l lowed : (j 1,: .;_:.:>:_.; I., ' . . ' 7 , -7 : < . ' * 2,. ..

F o r thorough c l e a n i n g it i s n e c e s s a r y t o f l o w C I P s o l u t i o n bot tom t o t o p t o i n s u r e w e t t i n g o f a l l s u r f a c e s w i t h c l e a n i n g s o l u t i o n .

For optimum c l e a n i n g , t h e f low rate of water, r i n s e and/or C I P s o l u t i o n shou ld be greater t h a n normal p r o d u c t f l o w ra te .

Some c l e a n i n g s o l u t i o n s are c a p a b l e o f d i s s o l v i n g scale a t lower f low rates . I n e i t h e r case, a C I P o p e r a t i o n w i l l o n l y be e f f e c t i v e i f performed b e f o r e f u l l f o u l i n g .

5. TROUBLE SHOOTING

5 .1 . I n d i c a t i o n or symptom of a d e f e c t i v e p l a t e :

5.2.

a . . F r e s h water may be s a l t y i f p r e s s u r e on sea wa te r s i d e is h i g h e r t h a n t h e p r e s s u r e o n f r e s h water s i d e .

There may be a loss i n f r e s h water supp ly i f p r e s s u r e i s h i g h e r o q 5 . r e s h wacer s i d e t h a n on sea water s i d e .

If salinity check of fresh wafer ind$cates presence of salt in fresh water side. a .

b.

..< .. .._,. . . . . . . . . _.. ... - . .- . . . -... -.-- c c.

-.. . I d . Leakage from between t h e p l a t e s may be t h e r e s u l t of a l eak th rough a p 1 a t e . X ' - t h e __. #-a%=. s m a l l . -. r e g i p n between t h e g a s k e t s n e a r t h e b l e e d p o r t rat3er t h a n a g a s k e t l e a k .

S e v e r e c o r r o s i o n may c a u s e d e f e c t s t o o c c u r . The f o l l o w i n g method i s recommended t o d e t e r m i n e t h e l o c a t i o n of t h e d e f e c t i v e p l a t e or p l a t e s :

a . Open t h e u n i t , remove a l l f o u l i n g from s u r f a c e s and

... . . . . :: .,;, -: -, r * . - c . 1 . ) . ' > . , . .

d r y t h e p l a t e s a f t e r c l e a n i n g .

e. Open t h e va lve ' -a t ' t-Ih.9owes.S poiri't on -side B. - -_ . - . ,. . - . . . . . . . _ . I . - - . . .-,. i . . I . .- ~ . _.

f. S t o p t h e t es t i f water f l o w s o u t of t h e v a l v e on I . - .._ s i d e B.

g. Open a l l v a l v e s and empty t h e u n i t o f a l l water.

h . Open t h e u n i t promptly and f i n d which p l a t e is w e t on s i d e B.

i. A d e f e c t i v e p l a t e can a l so be found by p l a c i n g a lamp on t h e rear s ide of t h e p l a t e and f i n d i n g t h e d e f e c t i v e p l a t e by o b s e r v i n g l i g h t p a s s i n g through.

j. I f t h e defect i s small , t h e u s e of dye p e n e t r a n t may be r e q u i r e d t o l o c a t e t h e defect. Because o f t h e metal t o m e t a l c o n t a c t , t h e d e f e c t can b e l a r g e r when a t pack d imens ion t h a n when it i s i n a f r e e s ta te .

5 . 3 Defective P l a t e R e m o v a l

' ~ . '. I k , . . '. ,. , CAUTION: ~ F - Q N E , DFFECTIYE P ~ T E IS REMOVED, THE ADJAC,ENT PLATE'MUST ALSO BE

6. CORRECTIVE MAINTENANCE

6.1 REPLACING GASKETS

1. When a gasket requires replacement, remove the plate from the frame and lay it on a clean, flat horizontal surface. Examine and note exactly how the gasket is positioned on the plate, particularly what grooves the gasket does and does not occupy.

2. .Insert a pointed tool (screw driver) :under the gasket until a finger can be inserted.

Then, pull slowly until the gaske!’is’rerrloved;’< ’.,’ -

3. Thoroughly clean the: :gasket grntwe. Adhesive residue, oil, grease and other foreign matter can be removed, bp.aapply.ing: a:sojve-M, such as Methylethyl Ketone (MEK), Acetone, or other: Ke,tsnes with:a, ny!o,nLqr stainless steel brush. Commercial pa i n t st r i p p i n g corn pound& a re;a lso, efJect-ys,;i n re m,oYi ns , t h e gasket adhesive. Dry/ wipe the gasket groove; (Note: All q.qlv.en:ts $hQpJd be use,d;at.room temperature and in a well ventilated area not, e x p o s e d f ~ . ~ , ~ . ~ - f l a ~ . , e , ~ l e c ~ ~ c ~ o t o r s , - - &* etc.) Torches, grind-ing wheels and powered :steel wire Qrgshes,are,natI.’to*:6ejused . L - . * . d . . . _ L . . to remove adhesive residue since such tools.will damag? the,-plq+s. ..: .!j. .,. :

4. Apply a uniform layer of adhesive i n tfie’:apprC@+ia‘te*gasket grooves. (A plastic bottle makes an ideal applicdGr, prdvided’ the4ipa6f the a’ppticator is designed to provide a bead that is approximatl!y 1/ ‘%jPiesive in amounts that will allow it to ooze-out when the.,gas e gFooVe’.’ Apply adhesive at room temperature.

The recommended if Pliobond 30 is

. _ , . . . c .. . . . . 1. - L ..

.!:i

. -- - - _.. ~- ---I-__ .. .

5 . Correctly position the gasket on the plate, making sure the proper side of the gasket is

up.