Degassifier_Specs.docx
DOCX document 27 KB Posted
- Attached to
- MOBILE TRANSFORMER OIL RECLAIMING PLANT/TRAILER
- Solicitation number
- De-SOL0010235
About this file
SPECIFICATIONS
View the file
Other files
| File | Type | Posted |
|---|---|---|
| DE-SOL-0010235.pdf |
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
MOBILE TRANSFORMER OIL RECLAIMING PLANT SPECIFICATIONS
PIPING:
| • | All steel butt‐welded pipe assembled by ASME code certified welders using ASME qualified weld procedures to insure years of leak free service. |
| • | Threaded connections shall not be allowed except for instrumentation, vents and drains < ¾” NPT. |
| • | Ball valves > ¾” NPT shall be 3‐piece with welded ends; not NPT. |
| • | Flow sight indicators shall be flanged; not NPT. |
| • | Y‐strainers shall be flanged; not NPT. |
| • | Relief / hydraulic bypass valves shall be flanged; not NPT. |
BALL VALVES:
| • | Full port ¼ turn oil valves stainless steel ball and Teflon seals. |
| • | > ¾” are three‐piece design with welded ends; not NPT. |
STRAINERS:
• Strainers must be provided ahead of all oil pumps to protect them from damage from large particles. This must include the discharge pump under the vacuum chamber.
OIL PUMPS:
• Positive displacement, direct drive, rotary‐screw type pumps only; NO gear, spur, centrifugal or non‐screw type pump is acceptable. No belt or gearbox driven pumps are allowed.
OIL HEATER:
| • | Staged banks of individual elements ≤ 16 kW per element to avoid temperature overshoot and large temperature swings. |
| • | Ability to lockout individual banks to limit power draw if needed. |
| • | Individual elements shall be of low watt density type (≤ 11 watts/sq.in.). |
| • | The individual heating elements must be encased in a heat transfer media that completely supports the heating element and provides even surface heating along the entire length of the fin tube (as opposed to heating elements that are only supported at intervals by ceramic stand offs). |
| • | Shall have a proportional digital temperature controller and step controller built into the PLC and touch screen to automatically maintain the adjustable set temperature at varying flow and oil temperature conditions. |
| • | Shall have an inlet oil flow switch prevents the heaters from operating unless suitable oil flow has been established. |
| • | Shall have an over‐temperature switch using additional failsafe to prevent over‐heating the oil. |
· The heater shall be split with 160 kW on the inlet side of the purifier and 64 kW on the outlet side.
· There shall be separate inlet/outlet heaters, they shall have independent controls and safeties.
HEATER COOL‐DOWN LOOP:
• The rotary tri‐screw inlet pump will utilize an external relief / hydraulic bypass valve that is mounted downstream of the pump and heaters.
HIGH CAPACITY INLET AND OUTLET FILTER HOUSINGS:
• Shall use six standard size 6" diameter x 18" long, (1 or 5‐micron inlet and 0.5‐micron outlet) pleated‐paper filter cartridges.
| • | Differential pressure gauge and switch to alarm when filters need changing. |
| • | Filter elements are the non‐water absorbing type. |
| • | ASME code designed and welded. |
| • | Automatic air vent. |
| • | Clean and dirty compartment drain valves. |
VACUUM CHAMBER:
| • | Shall have a large sized three stage vacuum chamber provided for the removal of air, water, and volatile contaminants from the oil being processed. |
| • | Shall be ≥ 32” diameter and ≥ 34” long. |
| • | Shall be mounted horizontally so that there is adequate liquid surface area to minimize foaming of the oil. |
| • | Shall have three‐stage oil dispersion: |
| 1. | Oil dispersing cartridges (Stage 1) – no spray nozzles. |
| 2. | Oil dispersing tray (Stage 2). |
| 3. | Large horizontal cross section chamber form maximum surface area exposure (stage 3). |
| • | Has >5” illuminated observation port and >5” oil level sight glass. |
| • | Have a strainer to prevent debris from entering the discharge pump after the chamber has been opened for maintenance. |
| • | Shall have an inlet flow control valve which is hydraulically operated from a float in the vacuum chamber. The flow control valve maintains the proper oil level in the chamber and is fully automatically. |
| • | High and low level switches are located inside as backups to the primary level control device and interlocked with pumps and alarms. |
| • | Automatic thru‐beam foam detector to control foaming caused by excessive contamination. Unit will alarm on high foam condition. |
| • | Epoxy coated interior to prevent corrosion due to moisture condensing during storage. |
· 5 inch inspection windows
TOTALIZING AND FLOW RATE METER:
• Shall have a Flow rate meter and a totalizing meter.
· Touch screen display and data logging.
AUTOMATIC BYPASS:
• Hydraulic relief circuit shall be provided for automatic internal recirculation mode. It shall have the means that the flow rate from the unit can be adjusted infinitely from wide open to zero flow by adjusting one valve.
VACUUM SYSTEM: Shall be equipped with the following
VACUUM PUMP:
• Air cooled Dry Screw vacuum pump: standard flow rate ≥ 1800 gph.
· Vacuum pump using no oil to seal vacuum.
· Direct‐drive with no belts and pulleys.
· Must have proper factory silencers on them to attenuate noise and prevent backflow of liquid into the pump.
· Pumps must be installed using OEM’s specified clearances on all sides of the pump to allow for proper cooling and service.
VACUUM BOOSTER (ROOTS PUMP/BLOWER):
| • | It shall be equipped with internal bypass so that the pump does not require a pressure switch to cut‐in at a specified pressure. |
| • | Shall be air cooled so that no cooling system is required. |
| • | Shall be direct‐drive with no belts and pulleys. |
VISIBLE OIL TRAP WITH DRIP LEG: Shall be equipped with the following
· A baffled oil trap to be provided in the vacuum system on the vacuum booster.
· A switch to stop the vacuum system if oil is detected in the vacuum stream.
· A full view port for visual view of any liquid in the trap.
· A drip leg shall be installed so that the operator can drain the fluid while the system is in operation: pumps running and without breaking vacuum or interrupting vacuum process to the transformer.
DIGITAL VACUUM GAUGES:
• Shall be digital with full scale from 0‐760 Torr (atmosphere)
TRAILERS:
| • | Trailer weight fully assembled = 10% under the GVWR of the trailer. |
| • | Shall have one curbside and two roadside doors. |
| • | Shall have 3 sets removable stairways at doors. |
| • | Shall have curbside and roadside windows located on exit doors. |
| • | Shall have insulated and sound attenuated wall with passage door with window. |
| • | Shall have HVAC in the work area or supplemental heat in the rear. |
· Shall have 230-Volt, single phase 60Hz AC/Heat Pump 13000 BTU/hr and 18000 BTU/hr cooling capacity and controller providing cooling and heating to the control room.
| • | Shall have two 75’ x 2” oil hoses on tandem electric hose reels plus four 25’ x 2” additional hose lengths with caps on free ends. Four 4” x 25’ vacuum hoses with camlocks. |
| • | Shall have six LED flood lights, 3 roadside and 3 curbside. |
| • | Shall have air intake and exhaust louvers to cool the equipment during use. |
| • | Shall have fluorescent interior lighting. |
| • | Shall have internal or external convenience receptacles located throughout the trailer. |
| • | Shall have work benches, metal tool bins and storage. Dimensions to be determined. |
| • | Shall have external power connection point and the length of power cable with 50’ cables. |
· Shall have Office/Lab space installed in Unit.
· Shall have mounted spare tire and wheel.
· Shall have a three compartment storage box mounted on underbelly of trailer.
· Trailer is to meet all Federal/State motor vehicle regulations for over-the-road hauling.
ACCESSORIES:
| • | Dry Air System for breaking transformer vacuum or work space purge in transformer: with CO monitor and ‐100 Dewpoint capability | |
| • | PPM water in oil (= to Doble Domino) sensors in oil inlet and outlet | |
| • | Dewpoint meter (= to Vaisala) sensor in the vacuum line and/or dry air system | |
| • | Aluminum Vacuum Adaptor (Christmas tree) for vacuum connection to transformer | |
| • | Automatad data logging with time and date stamping capturing: | |
| Purifier Vacuum Levels | Vacuum/Dry Air Dewpoint (C) | |
| Transformer Vacuum Levels | Discharge Oil Flow Rate (gpm) | |
| Inlet Oil Temperature | Total Gallons Discharged (gallon) | |
| Discharge Oil Temperature | Water Removal Rate in Vacuum oz/hr | |
| PPM Water in Oil-Inlet Oil | PPM Water in Oil-Discharge Oil |
CONDUIT:
· Wireway duct and rigid conduit shall be used wherever possible and flex be used sparingly.
· Ductwork & Rigid Conduit shall be installed wherever possible.
OTHER:
| • | Manufacturers product specification training at DSW Phoenix office. |
| • | ASME certified welders and weld procedures used on all vessels and welded pipe. |
• Designed and manufactured in the USA.
File details come from the government source that posted it. Updated .