CN211273849U

CN211273849U - Oil purifier

Info

Publication number: CN211273849U
Application number: CN201921985330.5U
Authority: CN
Inventors: 胡理博; 叶理克
Original assignee: Cnc Group Shanghai Co ltd
Current assignee: Cnc Group Shanghai Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-08-18
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to a purification field of insulating oil for oil-immersed transformer. In order to reduce the purification cost of insulating oil for the oil-immersed transformer, the utility model provides an oil purifier, which comprises a cavity wall pipe, an oil chamber partition plate, a filter element, an upper cover plate and a lower cover plate, wherein the oil chamber partition plate is arranged in the cavity wall pipe to divide the inner cavity of the cavity wall pipe into an oil outlet chamber and an oil inlet chamber; the filter element is fixedly arranged in the oil outlet chamber and is fixed on the oil chamber partition plate, and the inner cavity of the filter element is communicated with the oil inlet chamber through the communicating hole; the filter cartridge is arranged on the oil chamber partition plate through a fixed flange, and the top of the filter cartridge is provided with a top sealing plate; the upper cover plate is fixedly arranged on the cavity wall pipe to seal the oil outlet chamber, and the lower cover plate is fixedly arranged on the cavity wall pipe to seal the oil inlet chamber. The utility model discloses oil purifier's simple structure, the preparation is convenient with low costs, makes things convenient for the dismouting to change, and use cost is low.

Description

Oil purifier

Technical Field

The utility model relates to an oil-immersed transformer is with insulating oil's purification field especially relates to an oil purifier that oil-immersed transformer especially specification purifies usefulness at voltage 35kV capacity 2000kVA for the oil-immersed transformer above.

Background

At present, an oil filter is generally adopted to purify insulating oil for an oil-immersed transformer, particularly for a high-voltage oil-immersed transformer. Due to the fact that the purchase cost of the oil filter is high, the filter element and the filter paper and the drying agent in the filter element need to be replaced and maintained by a supplier, the use cost and the maintenance cost of the oil filter are high. Therefore, the oil filter is adopted to purify the insulating oil for the oil-immersed transformer, the purification cost is high, and the maintenance is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to reduce the purification cost of insulating oil for the oil-immersed transformer, the utility model provides an oil purifier, which comprises a cavity wall pipe, an oil chamber partition plate, a filter core, an upper cover plate and a lower cover plate, wherein the oil chamber partition plate is arranged in the cavity wall pipe and divides an inner cavity of the cavity wall pipe into an oil outlet chamber and an oil inlet chamber;

the filter element is fixedly arranged in the oil outlet chamber and is fixed on the oil chamber partition plate, and the inner cavity of the filter element is communicated with the oil inlet chamber through the communication hole;

the filter element comprises a filter cartridge, the filter cartridge comprises an inner hole cartridge, an outer hole cartridge, inner layer filter paper and outer layer filter paper, the inner hole cartridge is installed in the outer hole cartridge, a filter cavity is arranged between the inner hole cartridge and the outer hole cartridge, the inner layer filter paper is installed in the filter cavity and attached to the inner hole cartridge, the outer layer filter paper is installed in the filter cavity and attached to the outer hole cartridge, and a drying agent is filled between the inner layer filter paper and the outer layer filter paper; the filter cartridge is mounted on the oil chamber partition plate through a fixed flange, and a top sealing plate is arranged at the top of the filter cartridge;

the upper cover plate is installed go out the port department of grease chamber and fix it seals on the cavity wall pipe go out the grease chamber, the apron is installed down advance the port department of grease chamber and fix it seals on the cavity wall pipe advance the grease chamber.

The oil purifier has simple structure, convenient manufacture, low manufacture cost and convenient disassembly, assembly and replacement; in addition, the filter paper and the drying agent for filtering in the filter element in the oil purifier can be automatically replaced according to needs in the using process, thereby effectively reducing the use and maintenance cost. Therefore, adopt the utility model discloses when the oil purifier purifies oil for oil-immersed transformer insulating oil, can effectively reduce the purification cost.

Preferably, the drying agent is oil-resistant water-absorbing silica gel particles. Like this, adopt resistant oily silica gel granule that absorbs water as the drier, long service life can reduce the change frequency, and then reduces the utility model discloses oil purifier's use cost and maintenance cost.

Preferably, the upper cover plate is provided with an air vent, and an air vent plug is arranged in the air vent. Like this, can utilize the gas pocket to discharge the indoor gas of producing oil as required in the use, avoid influencing because of the indoor atmospheric pressure of producing oil is too high the utility model discloses oil purifier's purification efficiency. Further, a handle is arranged on the upper cover plate. Therefore, when the oil purifier is replaced, the handle can be used for lifting the oil purifier, and replacement is convenient.

Preferably, an oil drain hole is formed in the lower cover plate, and an oil drain plug is installed in the oil drain hole. Like this, can the evacuation as required in the use the utility model discloses insulating oil in the oil purifier makes things convenient for maintainer clearance and washing to advance the grease chamber.

Preferably, a permanent magnet is arranged in the oil inlet chamber and is fixedly arranged on the lower cover plate. Like this, after the insulating oil that treats the purification enters into the oil feed room through advancing oil pipe, can get rid of the iron metal impurity in the insulating oil through adsorbing iron metal impurity by the permanent magnetism piece, can avoid iron metal impurity to cause the damage to the filter core simultaneously, prolong the life of filter core. Furthermore, the permanent magnet blocks are permanent magnet rings. The permanent magnet blocks are good in adsorption effect and convenient to install and fix. Further preferably, the permanent magnet ring is installed at the oil drain hole. Thus, when the insulating oil is discharged, the ferrous metal impurities in the insulating oil can be removed.

Drawings

Fig. 1 is a schematic sectional view of the oil purifier according to the present invention;

fig. 2 is a schematic top view of the oil purifier shown in fig. 1.

Detailed Description

The oil purifier of the present invention will be described in detail with reference to fig. 1 and 2.

As shown in fig. 1 and 2, the oil purifier of the present invention includes a cavity wall tube 1, an oil chamber partition 2, a filter element 3, an upper cover plate 4 and a lower cover plate 5. Wherein, the oil chamber baffle 2 is arranged in the cavity wall pipe 1 to divide the inner cavity of the cavity wall pipe 1 into an oil outlet chamber 11 and an oil inlet chamber 12, the middle part of the oil chamber baffle 2 is provided with a communicating hole 21, the side wall of the oil outlet chamber 11 is provided with an oil outlet pipe 111, and the side wall of the oil inlet chamber 12 is provided with an oil inlet pipe 121. Preferably, the oil outlet pipe 111 is provided with an oil outlet pipe connector 112 at its outer opening, and the oil inlet pipe 121 is provided with an oil inlet pipe connector 122 at its outer opening, so as to facilitate connection with an inlet and an outlet for purifying the insulating oil in the oil-immersed transformer, and facilitate replacement of the oil purifier. The filter element 3 is fixedly arranged in the oil outlet chamber 11 and is fixed on the oil chamber clapboard 2, and the inner cavity of the filter element 3 is communicated with the oil inlet chamber 12 through the communicating hole 21. The upper cover plate 4 is installed at the port of the oil outlet chamber 11 and fixed on the cavity wall pipe 1 to seal the oil outlet chamber 11, and the lower cover plate 5 is installed at the port of the oil inlet chamber 12 and fixed on the cavity wall pipe 1 to seal the oil inlet chamber 12. Preferably, the outer walls of both ends of the chamber-wall pipe 1 are provided with connection ring plates 13. Like this, when installing upper cover plate 4 and lower apron 5, usable connecting bolt fixes upper cover plate 4 and lower apron 5 erection on link plate 13, makes things convenient for the dismouting, and then facilitates the use maintainer right in the use the utility model discloses the oil purifier is maintained. Preferably, the upper cover plate 4 is provided with an air vent (not shown), and an air vent plug 41 is installed in the air vent. Like this, can utilize the gas escape hole to discharge out the gas in the grease chamber 11 as required in the use, avoid influencing because of the atmospheric pressure in the grease chamber 11 is too high the utility model discloses oil purifier's purification efficiency. Preferably, the upper cover plate 4 is provided with a handle 42. Therefore, when the oil purifier is replaced, the handle 42 can be used for lifting and placing the oil purifier, and replacement is convenient. Preferably, the lower cover plate 5 is provided with an oil drain hole (not shown) in which an oil drain plug 51 is installed. Like this, can empty as required in the use the utility model discloses insulating oil in the oil purifier facilitates the use maintainer and clears up and wash grease inlet chamber 12. Preferably, a permanent magnet 6 is arranged in the oil inlet chamber 12, and the permanent magnet 6 is fixedly mounted on the lower cover plate 5. Like this, after the insulating oil that treats the purification enters into oil feed chamber 12 through advancing the oil pipe, can remove the iron metal impurity in the insulating oil through adsorbing iron metal impurity by permanent magnetism 6, can avoid iron metal impurity to cause the damage to filter core 3 simultaneously, prolong the life of filter core 3. Preferably, the permanent magnet 6 is a permanent magnet ring. The permanent magnet 6 has good adsorption effect and is convenient to install and fix. Preferably, the permanent magnet ring is installed at the oil drain hole. Thus, when the insulating oil is discharged, the ferrous metal impurities in the insulating oil can be removed.

The filter element 3 comprises a filter cylinder 31, the filter cylinder 31 is mounted on the oil chamber partition plate 2 through a fixing flange 32, and a top closing plate 33 is arranged at the top of the filter cylinder 31. The filter cartridge 31 comprises an inner bore cartridge 311, an outer bore cartridge 312, an inner layer filter paper 313 and an outer layer filter paper 314, wherein the inner bore cartridge 311 is installed in the outer bore cartridge 312, a filter cavity is arranged between the inner bore cartridge 311 and the outer bore cartridge 312, the inner layer filter paper 313 is installed in the filter cavity and attached to the inner bore cartridge 311, the outer layer filter paper 314 is installed in the filter cavity and attached to the outer bore cartridge 312, and a drying agent 315 is filled between the inner layer filter paper 313 and the outer layer filter paper 314. Preferably, the inner bore cylinder 311 and the outer bore cylinder 312 are concentrically arranged to ensure that the thickness of the drying agent 315 is uniform at different positions, thereby ensuring stable drying performance. Preferably, the desiccant 315 is oil resistant, water absorbent silica gel particles. Like this, adopt resistant oily silica gel granule that absorbs water as drier 315, long service life can reduce the change frequency, and then reduces the utility model discloses oil purifier's use cost and maintenance cost. Preferably, the top sealing plate 33 is connected to the connecting ring 316 on the outer wall of the filter cartridge 31 by the sealing bolt 34, so that the filter paper and the drying agent 315 in the filter cartridge 3 can be replaced by a maintenance person. In addition, the inner bore tube 311 and the outer bore tube 312 of the filter cartridge 31 may be formed by welding a porous thin steel plate or a steel wire mesh.

Claims

1. An oil purifier is characterized by comprising a cavity wall pipe, an oil chamber partition plate, a filter element, an upper cover plate and a lower cover plate, wherein the oil chamber partition plate is arranged in the cavity wall pipe and divides an inner cavity of the cavity wall pipe into an oil outlet chamber and an oil inlet chamber;

2. The oil purifier of claim 1, wherein the desiccant is oil resistant water absorbent silica gel particles.

3. The oil purifier as recited in claim 2, wherein the upper cover plate is provided with an air vent, and an air vent plug is installed in the air vent.

4. The oil purifier of claim 3, wherein the upper cover plate is provided with a handle.

5. The oil purifier as claimed in any one of claims 1-4, wherein the lower cover plate is provided with an oil drain hole, and an oil drain plug is installed in the oil drain hole.

6. The oil purifier as recited in claim 5, wherein a permanent magnet is disposed in the oil inlet chamber and is fixedly mounted to the lower cover plate.

7. The oil purifier as recited in claim 6, wherein the permanent magnet blocks are permanent magnet rings.

8. The oil purifier as recited in claim 7, wherein the permanent magnet ring is mounted at the oil drain hole.