1. Applications
It is widely used for oil purification and vacuum hot oil circulation in power plants, national power grids, transformer plants, petrochemicals during installation and maintenance of transformers. It is suitable for the oil purification of 10KV-35KV transformer insulating oil and deeper treatment of high-grade new oil. This machine is equipped with a three-dimensional flash rapid evaporation system, which can dehydrate, degas, remove acetylene, remove acid value, remove free carbon effectively and quickly. The treated insulating oil has a higher breakdown voltage value. This machine can be used as vacuum oil-filling machine to transformer and other electric equipment
2. Working Principles
The machine is professional designed for transformer oil degasification, dehydration and filtration, according to the principles of vacuum separation, precision mechanical filtration and vacuum drying etc., It can work without any other auxiliary mechanical equipment. The vacuum drying oil-water saturation temperature curve principle helps to carry out water completely. Through the processes, the gas, acid, moisture, solid particulate, contamination can be completely removed out, and the dielectric strength had been improved too.
3. Working Concepts
The raw material oil passes through the primary coarse filter and then enters the heaters. The heated oil passes through the vacuum evaporation tank through the spiral spray atomization system, the hot oil becomes coarse mist and falls into the rasching ring and enters the vibration defoaming device to the bottom of tank. The water begins to evaporate, and the oil mist forms a three-dimensional, multi-faceted evaporation structure in the tank. Through a short cycle, the purification purpose can be achieved. After dehydrated, degassed and deacidified, the oil passes through the secondary and fine filters under the action of the oil pump to complete an oil purification work cycle. The water vapor and gas separated from the vacuum chamber. Then the water vapor and gas enter the condenser, and the water vapor condenses into water and is stored in the water storage tank and then can be discharged outside the machine. The gas after cooled and discharged by the vacuum pump.
4. Filtrations (Removable & Cleanable)
4.1 Y-Stainer with 250 microns (Pre-filter)
4.2 Coarse & Pre-fine filter with 80 and 25 microns (Oil & heat resistant fluoro rubber)
4.3 Fine filter with 5 microns (ceramic)
5. Technical parameters
No. | PEA-1200S | No. | PEA-1200S |
1 | Material: Transformer oil | 12 | Suction: 20m |
2 | Flow: 1200LPH | 13 | Lift: 15m |
3 | Vacuum pump speed: 25 m³/h | 14 | Working noise :75dB(A) |
4 | Vacuum pump motor power: 0.55KW | 15 | Continuous working time: 200h |
5 | Oil discharge pump: 20 l/min | 16 | Mean time between failures: 2000h |
6 | Oil pump motor power: 0.75KW | 17 | Demulsification time: 30/min |
7 | Heater power: 8KWX2=16KW | 18 | Work Pressure: 0-0.35MPa |
8 | Total power: 20KW | 19 | Working vacuum: 0.085-0.096MPa |
9 | Filtration accuracy: 5 microns | 20 | Ultimate vacuum: 0.098Mpa |
10 | Power supply: 3P 380V/50Hz | 21 | Weight: 680kg (Approx.) |
11 | Pipe diameter: DN25/DN25 | 22 | Dimensions:1300*1300*1800 mm (Approx) |
6. After Treatment Data
Items | Unit | Initial value | One cycle | Three cycles | Test Method |
Water content | Mg/L | <=50PPM | <10PPM | <8PPM | GB/T7600 |
Gas content | % | <=10% | <0.8% | <0.1% | |
Acetylene | Mg/L | =<0.3 | <0.1 | 0 | |
Breakdown voltage | KV | 30KV | > 50KV | ≥ 55KV | VDE,2.5mm |
Filtration accuracy | 5 microns | ||||
