Application
1.DTG series transformer oil two-stage vacuum oil filter is mainly used for on-site maintenance of transformers in large-scale substations above 110kV and deep purification treatment of high-grade new oil, imported oil, transformer oil and ultra-high-voltage transformer oil.
2.It can be used in power plant, power station, power company, substation industry, metallurgy, petrochemical, machinery, transportation, railway and other industries for the maintenance and safe use of power system and substation. It can also be used for vacuum oil injection, vacuum drying and hot oil circulation of transformers.
3. It is more advantageous to use this series of aircraft in high altitude area.
Main technical parameters:
| 1 |
Model no. |
DTG-20 |
DTG-30 |
DTG-50 |
DTG-100 |
DTG-150 |
DTG-200 |
DTG-300 |
| 2 |
Flow |
1200L/h |
1800L/h |
3000L/h |
6000L/h |
9000 |
12000 |
18000 |
| 3 |
Limit Vacuum (Pa) |
7 |
| 4 |
Working vacuum (Pa) |
133 |
| 5 |
Working pressure (Mpa) |
0.4 |
| 6 |
Water content in oil (ppm) |
≤ 3 (GB/T600) |
| 7 |
Gas content in oil (%) |
≤ 0.05 (GB/T423) |
| 8 |
Filter Precision (μm) |
≤3 |
| 9 |
Working Oil Temperature (ºC) |
45ºC-65ºC |
| 10 |
Oil breakdown voltage (KV) |
70 - 75 (GB/T507) |
| 11 |
Power supply |
380V±10%, 50Hz or 60Hz (Can be customized) |
| 12 |
Total power(KW) |
23 |
25 |
45 |
65 |
86 |
108 |
160 |
| 13 |
Inlet and outlet pipe diameter (mm) |
25 |
25 |
32 |
40 |
45 |
50 |
60 |
| 14 |
Net weight (kg) |
280 |
320 |
580 |
800 |
900 |
1000 |
1200 |
| 15 |
Demension(cm)
(L*W*H) |
100*80*140 |
100*80*150 |
120*90*150 |
150*110*170 |
170*120*180 |
180*130*190 |
200*150*210 |
Advantage
DTG series of high-efficiency two-stage vacuum oil filters adopt vacuum negative pressure principle, three-dimensional stereo flash evaporation, film evaporation technology, through multi-stage precision filtration, reliably remove particulate impurities, dust and oil contained in unqualified insulating oil (including transformer oil, circuit breaker oil, capacitor oil, cable oil, transformer oil, switch oil, etc.). Sludge and sediment, trace moisture, etc., thus improving the insulation and voltage resistance of oil. It is suitable for oil pumping and oil injection treatment of transformers on site, and can also be used for overhaul, installation and maintenance of high-voltage power equipment, as well as vacuum hot oil drying of oil-filled electrical equipment. Widely used in power plants, substations, power companies, power supply stations, transformer production plants, metallurgy, petrochemical, machinery, transportation, railways and other industries of fast and deep purification of insulating oil.
1) It adopted the separation technology,high-efficiency vacuum dehydration, degassing and impurity remova. It has high oil purification efficiency for the industrial oil such as turbine oil, hydraulic oil and lubricating oil, so that the filtered oil can meet the use standard.
2) Compact structure: it adopts the structure of removing filter element without tools, so it is convenient and quick to replace filter element.
3) Equipped with infrared defoaming device: automatically eliminate the oil bubble in the vacuum tank, so as to avoid the damage of the vacuum pump caused by the oil bubble inhalation into the vacuum pump.
4) Equipped with filter element pollution alarm: when pollution of the filter element is fully absorbed, the whole machine will automatically stop running and give an alarm to stop and prompt to replace the filter element.
5) Built in heater: heating efficiency, heat preservation performance, heating speed, etc. are superior to the same industry level.
6) Low power density tubular heating element is adopted, built-in oil shortage protection and digital display constant temperature control device, which will not cause dry burning and oil cracking of oiler under any circumstances, and the whole machine can be operated online.
7) The oil transfer pump works stably with low noise.
8) When the equipment is started, the noise is stable and low. During normal operation, the oil pump does not empty and the motor does not operate under load. In case of any abnormal condition, the alarm can be automatically given, so as to achieve the automatic and reliable protection of the main equipment and ensure the safe and continuous operation of the oil filter for a long time.
9) The machine is equipped with automatic drainage system, automatic anti oil leakage device, automatic oil level control, automatic alarm and shutdown to prevent the oil leakage of vacuum oil filter.
10) The bottom of the whole machine is equipped with a bearing caster for convenient movement.
12) Quick connector is used for oil inlet and outlet pipe, which is convenient to use.
13) The machine has stable performance and avoids the trouble of adjusting each valve after starting the common oil filter.
Main components and functions:
The equipment consists of nine parts: frame, oil filter system, heating system, vacuum system, separation system, condensation system, oil transportation system, pipeline valve system and electronic control system.
1. Frame: This is movable. There are four heavy-duty rollers installed below for easy movement. All parts of the oil filter are fixed on it to ensure the reliable operation of the whole machine.
2.Oil filtration system consists of coarse filtration, first-stage filtration and second-stage fine filtration. The filter element adopts high-quality filter element with large filtering area, large contamination capacity and high filtering accuracy. In order to improve the quality of oil, various impurities and suspended solids in oil can be filtered rapidly by progressive infill filtration.
The heating system consists of heater A, heater B and temperature control display.
3.The vacuum system consists of rotary vane vacuum pump and Roots pump. Opening the rotary vane vacuum pump can make the system reach the initial vacuum state. After the system reaches the initial vacuum state, opening the Roots pump can make the system obtain high vacuum. In the case of high vacuum and large pumping speed, it can quickly remove all kinds of harmful gases and trace moisture in the purified oil, which can significantly increase the breakdown voltage value of the oil after filtration, shorten the oil treatment period, and reduce the hazards of oil aging caused by repeated heating and filtration of ordinary oil filters.
4.The separation system consists of an oil inlet solenoid valve, an atomizer, a gas-liquid separation tower, an observation window and a liquid level controller.
5.The condensation system consists of primary condensation and secondary condensation. In addition to condensation function, the condenser also has steam-water separation function, which can effectively remove water, prevent water from entering the vacuum pump to emulsify the vacuum pump oil, and prolong the service life of the vacuum pump.
6.The oil delivery system consists of an oil pump, a pressure gauge, an oil discharge valve, a sampling valve and an oil discharge valve.
7.Pipeline valve system consists of intake pipeline, outlet pipeline, vacuum pipeline, various manual valves and various solenoid valves. It is a bridge connecting various components. The inlet and outlet tubing joints are all fast-changing joints, which are reliable in sealing and convenient in operation.
9. The electronic control system is the centralized control center of the whole machine. Most of the control elements are installed in the electronic control cabinet. The upper part of the cabinet panel is equipped with a high-precision shock-proof vacuum gauge and a high-precision shock-proof pressure gauge, which are used to indicate the working vacuum of the system and the working pressure of the oil output system. The names of various control buttons and indicator lights at the lower part of the cabinet panel are as follows:
Among the above buttons, the "Master stop/Reset" button is a compound button with self-locking function. The "Master stop/Reset" button can be pressed once to cut off all the control power of the system. Only when the "Master stop/Reset" button is rotated clockwise, can the control power of the system be restored.
In addition to various manual functions, the electrical system has the following automatic functions.
(1) Automatic control of heating temperature.
(2) Automatic control of oil level in separation tower.
(3) Oil foam is eliminated automatically.
(4) Automatic alarm of excessive pressure in filtering system
(5) Automatic protection of power failure.
Equipment standard:
This agreement refers to the standard of "JB / 5285-2008 vacuum oil purifier machinery industry".
Accessoires
| Sr |
Decription |
Qty |
| 1 |
Inlet/outlet oil tube |
2 |
| 2 |
Hook |
2 |
| 3 |
Opearting manual |
1 pc |
| 4 |
Calibration report |
1 pc |
Optional items for buyers:
1. Frequency converter, flow rate can be selected according to needs;
2. Flow meter with accumulation function;
3. On line moisture detector and on-line particle detector;
4. PLC intelligent control, touch screen and dynamic display;
5. High quality imported power components, filter parts and electrical components to improve equipment performance;
6. Evacuation system of external connection to transformer.
Customized equipment as per buyer's requirements:
1. The whole machine mechanism can be made into mobile and fixed type;
2. Fully closed and open type can be made;
3. Select the equipment color according to the needs;
4. The whole machine can be made into oil filter with plate and frame, which has better filtering effect for oil with more impurities
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