Low-loss vacuum oil filtering device

Abstract

The utility model discloses a low-loss vacuum oil filtering device which comprises a heat exchanger, a vacuum tank and a vacuum pump, and an oil filtering device oil inlet three-way valve, a magnetic filter, a coarse filter, an electric valve, a vacuum tank oil inlet electromagnetic valve, an oil inlet one-way valve and a heater are sequentially arranged on an oil inlet pipeline between the heat exchanger and the vacuum tank. An oil drain pump, a fine filter, an oil outlet one-way valve and an oil filter device oil outlet three-way valve are sequentially arranged on the oil outlet pipeline between the vacuum tank and the heat exchanger, a vacuumizing pipeline is arranged between the upper end of the vacuum tank and the vacuum pump, and a condensation tank and a condensation tank floating ball valve are sequentially arranged on the vacuumizing pipeline between the vacuum tank and the vacuum pump. In the application process, the insulating oil to be treated can be filtered, purified, degassed and dewatered, meanwhile, heat contained in the heated insulating oil is recycled, resources are saved, and meanwhile the phenomenon that oil is degraded due to the fact that the temperature of a contact area is too high in the heating process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply systems, in particular to a low-loss vacuum oil filtering device. Background Art

[0002] The power supply system still uses a large amount of oil-insulated equipment. Therefore, in daily work, the storage and treatment of insulating oil is still an important task. Traditionally, the storage and treatment of oil are separate, and each power supply unit also has its own oil storage tanks and oil filters.

[0003] In the process of heating and filtering the insulating oil, the traditional oil filter will have a higher temperature near the heating surface of the heater when the insulating oil is heated by the heater, which will cause the oil to deteriorate due to the high temperature; and the heat of the heated and filtered insulating oil can only be dissipated to the outside and cannot be reasonably reused. To this end, we proposed a low-loss vacuum oil filter device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a low-loss vacuum oil filtering device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A low-loss vacuum oil filtering device comprises a heat exchanger, a vacuum tank and a vacuum pump. An oil inlet pipeline is provided between the oil outlet of the heated pipe of the heat exchanger and the oil inlet of the vacuum tank. The oil inlet pipeline between the heat exchanger and the vacuum tank is provided with an oil filter device oil inlet three-way valve, a magnetic filter, a coarse filter, an electric valve, a vacuum tank oil inlet electromagnetic valve, an oil inlet one-way valve and a heater in sequence.

[0007] An oil outlet pipeline is provided between the oil inlet of the heating pipe of the heat exchanger and the oil outlet of the vacuum tank. An oil discharge pump, a fine filter, an oil outlet one-way valve, and an oil outlet three-way valve of the oil filter device are provided on the oil outlet pipeline between the vacuum tank and the heat exchanger in sequence.

[0008] A vacuuming pipeline is arranged between the upper end of the vacuum tank and the vacuum pump, and a condensing tank and a condensing tank float valve are arranged in sequence on the vacuuming pipeline between the vacuum tank and the vacuum pump.

[0009] Preferably, a sampling valve is installed on the oil outlet pipeline between the fine filter and the oil outlet one-way valve.

[0010] Preferably, a vacuum tank gas ballast valve is installed on the vacuum tank.

[0011] The utility model provides a low-loss vacuum oil filter device, which has the following beneficial effects:

[0012] During the application of the technical solution, the insulating oil to be treated enters the heated pipe through the oil inlet of the heated pipe of the heat exchanger and is discharged through the oil outlet of the heated pipe, and then passes through the oil inlet three-way valve, magnetic filter, coarse filter, electric valve, vacuum tank oil inlet electromagnetic valve, oil inlet one-way valve, heater and finally enters the vacuum tank. At this time, the treated insulating oil can be filtered and heated, and enters the vacuum tank at a higher temperature. At this time, when the vacuum pump is turned on, the insulating oil can be filtered, impurities removed, degassed and dehydrated.

[0013] With the pumping of the oil discharge pump, the insulating oil after degassing and dehydration passes through the fine filter, the oil outlet one-way valve, the oil outlet three-way valve of the oil filter device in turn and enters the heating pipe of the heat exchanger through the oil inlet of the heating pipe of the heat exchanger, and is finally discharged from the heating pipe of the heat exchanger. The insulating oil entering the heating pipe of the heat exchanger has a certain temperature, and the insulating oil entering the heating pipe of the heat exchanger can be heated at this time. At this time, the heat of the heated and filtered insulating oil is utilized, the temperature of the insulating oil discharged from the heating pipe of the heat exchanger is reduced, and the heating power of the heater is reduced, which saves resources and avoids the phenomenon of high oil temperature near the heating surface of the heater, which is conducive to eliminating the phenomenon of oil deterioration caused by excessive temperature of the contact area during the heating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a low-loss vacuum oil filtering device.

[0015] In the figure: coarse filter 19, electric valve 20, heater 21, vacuum tank 22, condensate tank 23, condensate tank float valve 24, vacuum tank gas ballast valve 25, vacuum pump 26, oil inlet one-way valve 27, vacuum tank oil inlet electromagnetic valve 28, oil discharge pump 29, fine filter 30, oil outlet one-way valve 31, sampling valve 32, oil filter device oil outlet three-way valve 33, heat exchanger 34, oil filter device oil inlet three-way valve 35, magnetic filter 36. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0018] Reference Figure 1 A low-loss vacuum oil filtering device comprises a heat exchanger 34, a vacuum tank 22 and a vacuum pump 26. An oil inlet pipeline is provided between the oil outlet of the heated pipe of the heat exchanger 34 and the oil inlet of the vacuum tank 22. The oil inlet pipeline between the heat exchanger 34 and the vacuum tank 22 is provided with an oil filter device oil inlet three-way valve 35, a magnetic filter 36, a coarse filter 19, an electric valve 20, a vacuum tank oil inlet electromagnetic valve 28, an oil inlet one-way valve 27 and a heater 21 in sequence.

[0019] An oil outlet pipeline is provided between the oil inlet of the heating pipe of the heat exchanger 34 and the oil outlet of the vacuum tank 22. An oil discharge pump 29, a fine filter 30, an oil outlet one-way valve 31, and an oil outlet three-way valve 33 of the oil filter device are provided in sequence on the oil outlet pipeline between the vacuum tank 22 and the heat exchanger 34. A sampling valve 32 is installed on the oil outlet pipeline between the fine filter 30 and the oil outlet one-way valve 31.

[0020] A vacuum pipe is provided between the upper end of the vacuum tank 22 and the vacuum pump 26 , and a condenser 23 and a condenser float valve 24 are provided on the vacuum pipe between the vacuum tank 22 and the vacuum pump 26 in sequence. A vacuum tank gas ballast valve 25 is installed on the vacuum tank 22 .

[0021] In summary: during the application of the utility model, the insulating oil to be treated enters the heated pipe through the oil inlet of the heated pipe of the heat exchanger 34 and is discharged through the oil outlet of the heated pipe, and then passes through the oil inlet three-way valve 35, the magnetic filter 36, the coarse filter 19, the electric valve 20, the vacuum tank oil inlet electromagnetic valve 28, the oil inlet one-way valve 27, and the heater 21 in sequence and finally enters the vacuum tank 22. At this time, the treated insulating oil can be filtered and heated, and enter the vacuum tank 22 at a higher temperature. At this time, when the vacuum pump 26 is turned on, the insulating oil can be filtered, decontaminated, degassed, and dehydrated.

[0022] With the pumping of the oil discharge pump 29, the insulating oil after degassing and dehydration passes through the fine filter 30, the oil outlet one-way valve 31, the oil outlet three-way valve 33 of the oil filter device in sequence, and enters the heating pipe of the heat exchanger 34 through the oil inlet of the heating pipe of the heat exchanger 34, and is finally discharged from the heating pipe of the heat exchanger 34. The insulating oil entering the heating pipe of the heat exchanger 34 has a certain temperature, and at this time, it can heat the insulating oil entering the heating pipe of the heater 21. At this time, the heat of the heated and filtered insulating oil is utilized, the temperature of the insulating oil discharged from the heating pipe of the heat exchanger 34 is reduced, and the heating power of the heater 21 is reduced, while saving resources and avoiding the phenomenon of high oil temperature near the heating surface of the heater 21, which is conducive to preventing the phenomenon of oil degradation caused by excessively high temperature in the contact area during the heating process.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low-loss vacuum oil filter device, characterized in that: The invention comprises a heat exchanger (34), a vacuum tank (22) and a vacuum pump (26); an oil inlet pipeline is provided between the oil outlet of the heating pipe of the heat exchanger (34) and the oil inlet of the vacuum tank (22); and an oil filter device oil inlet three-way valve (35), a magnetic filter (36), a coarse filter (19), an electric valve (20), a vacuum tank oil inlet electromagnetic valve (28), an oil inlet one-way valve (27) and a heater (21) are provided in sequence on the oil inlet pipeline between the heat exchanger (34) and the vacuum tank (22); An oil outlet pipeline is provided between the oil inlet of the heating pipe of the heat exchanger (34) and the oil outlet of the vacuum tank (22); an oil discharge pump (29), a fine filter (30), an oil outlet one-way valve (31), and an oil outlet three-way valve (33) of the oil filter device are provided in sequence on the oil outlet pipeline between the vacuum tank (22) and the heat exchanger (34); A vacuum pipe is provided between the upper end of the vacuum tank (22) and the vacuum pump (26), and a condensation tank (23) and a condensation tank float valve (24) are provided in sequence on the vacuum pipe between the vacuum tank (22) and the vacuum pump (26).

2. A low-loss vacuum oil filter device according to claim 1, characterized in that: A sampling valve (32) is installed on the oil outlet pipeline between the fine filter (30) and the oil outlet one-way valve (31).

3. A low-loss vacuum oil filter device according to claim 1, characterized in that: The vacuum tank (22) is provided with a vacuum tank gas ballast valve (25).

Images