Overview | High Vacuum Transformer Oil Treatment Plant
The High Vacuum Transformer Oil Treatment Plant manfactured by PureTech is for the treatment (dehydration, degassing and filtration) of mineral transformer oil. The High Vacuum Transformer Oil Treatment Plant are designed for transformer oil processing in workshops or in the fields, oil storage tanks, drums or directly in transformers. Purification of transformer insulating oil can be carried out off-load or on-load on customer's demanding.
Vacuum insulating oil purification plant is required for routine maintenance and repair work for power transformers, besides, new transformer insulating oil should be filtrated and dehydrated before filling into power transformers.
This Vacuum Oil Purifier is mounted on a common base with full frame and movable casters. For outdoor projects, a roadworthy trailer and weatherproof enclosure can be mounted.
1. Water Removal: From 50 ppm down to less than 5 ppm.
2. Gas Removal: From 10% down to 0.1%.
3. Particulate Matter Removal: 99% of particles over 1 micron, or over 3 or 5 micron at customer's preference.
4. Dielectric Strength Improvement: Up to 75 KV with double-stage high vacuum insulating oil purification plant.
Process | High Vacuum Transformer Oil Treatment Plant
The vacuum insulating oil purification plant is designed according to the different boiling points of water and oil. It mainly consists of a vacuum degassing chamber, heater, pre filter and fine filter, condenser, vacuum pump and roots booster pump, oil discharge pump and an electrical control cabinet.
The vacuum pump system draws out the air in the oil purification plant to form a vacuum. Under the action of atmospheric pressure, the insulating oil is drawn from storage tanks to the oil purification plant, it passes through the inlet pipe and enters the pre filter to eliminate larger particles, and then enters the electrical heater (thermostat is installed to ensure no overheating). The oil is heated to 45~65℃ (setting value can be adjusted) before entering the degassing chamber. The heated oil is rapidly rotated by the spray wing to separate the oil into semi-mist. The water and gases contained in the insulating oil are thoroughly exposed to vacuum,and are continuously sucked into the condenser by the vacuum pump. The waterand gas in the condenser is cooled. The oil in the vacuum degassing chamber is discharged by the oil discharge pump into the fine filter to filter out the smaller particulate impurities, thereby completing the entire process of quickly removing impurities, moisture, and gas in the oil, so that the clean transformer oil is discharged from the oil outlet valve.
Components | High Vacuum Transformer Oil Treatment Plant
Main Components Included:
Item
System
Components:
01
Three Stages Filtration System
Pre Filter, Fine Filter I, Fine Filter II, with a large surface area and dirt holding capacity
02
Electrical Heating System
Electric Heater, Thermostat, Temperature Gauge
03
Vacuum Degassing System
Degassing Chamber, Oil Level Controller, Solenoid Valves, Dispel Foam Device
04
Vacuum Pumping System
Rotary Vane Vacuum Pump, Roots Booster Pump
05
Oil Transfer System
Oil Discharge Pump(Oil Outlet Pump)
06
Electrical Control System
Electrical Panel, Electrical Protection, Alarm, Emergency Stop, Overloads, etc.
07
Instruments and Gauges
Vacuum Gauge, Pressure Gauge, Pressure Controller,Temperature Gauge, etc.
08
Valves and Pipes
Inlet Valve, Outlet Valve, Sampling Valve, Transformer Evacution Valve, Drain Valve, Circulation Valve, etc.
Optional Accessories:
Item
Optional Components
Recommendation Applications
01
Oil Inlet Pump
It is recommended when the oil storage tank is below the horizontal plane of the oil purification machine, or when the horizontal distance exceeds 50 meters, or when separate oil transferring/filling without heating and degassing is required, etc.
02
PLC Control and Touch Screen
It is recommended when automatic control is prefered, with PLC and touch screem, the working status of Oil Purification Machines will be displayed on the screen, include monitoring of pressure value, vacuum value, etc.
03
Online Moisture Content Tester
It is recommended when online moisture content result is required to be shown on site. It can be installed at oil inlet or outlet, or both sides.
04
Oil Flow Meter
It is recommended when providing transformer oil filtration service, as a charging tool.
05
Roadworthy Trailer and Weatherproof Enclosure
It is recommended when outdoor transformer oil filtration service is required, and transportation between different substations.
06
Transformer Oil BDV Tester
It is a portable offline type, which is equipped with printer, LCD display screen, etc.
Specifications | High Vacuum Transformer Oil Treatment Plant
|
Machine Parameter |
Item | Unit | DVOP-30 | DVOP-50 | DVOP-75 | DVOP-100 | DVOP-150 | DVOP-200 | DVOP-300 | |
| Flow rate | liters/hour | 1800 | 3000 | 4500 | 6000 | 9000 | 12000 | 18000 | ||
| Vacuum degree | Mpa | (-0.08) ~ (-0.099) | ||||||||
| Working pressure | Mpa | ≤ 0.3 | ||||||||
| Temperature range | ℃ | 40 ~ 80 | ||||||||
| Power supply | 380Volts, 50Hz, 3Phase (Or customized) | |||||||||
| Heating power | kw | 24 | 30 | 48 | 60 | 90 | 120 | 130 | ||
| Total power | kw | 26 | 34 | 54 | 68 | 100 | 135 | 146 | ||
| Inlet/outlet diameter | mm | 32 | 32 | 44 | 44 | 50 | 58 | 65 | ||
| Size | Length | mm | 1250 | 1350 | 1550 | 1800 | 2000 | 2100 | 2300 | |
| Width | mm | 900 | 1000 | 1150 | 1400 | 1750 | 1850 | 2000 | ||
| Height | mm | 1450 | 1500 | 1700 | 1750 | 1800 | 2250 | 2300 | ||
| Weight | kg | 500 | 600 | 800 | 1100 | 1300 | 1900 | 2300 | ||
| Oil index after purification | Breakdown voltage | kV | ≥75 (Spherical electrodes) | |||||||
| Water content | ppm | ≤5 | ||||||||
| Gas content | % | ≤0.1 | ||||||||
| Filtering accuracy | micron | 1 | ||||||||
* The machine size and weight can be changed slightly as per your requirements.
* Vacuum Pump Set, Dry Air Generator, SF6 Gas Recovery and Filling Machine can be selected alongwith.
• 12 months of quality guarantee.
• Lifelong maintenance and spare parts supply.
• Free training on operation, maintenance and troubleshooting at PureTech factory.
• Puretech engineers go to customer site for commissioning and training (payable service).
• Design accept user's customization.
