CN219912691U - Accident oil discharging system capable of preventing misoperation, oil leakage and oil degradation - Google Patents
Accident oil discharging system capable of preventing misoperation, oil leakage and oil degradation Download PDFInfo
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- CN219912691U CN219912691U CN202320962599.1U CN202320962599U CN219912691U CN 219912691 U CN219912691 U CN 219912691U CN 202320962599 U CN202320962599 U CN 202320962599U CN 219912691 U CN219912691 U CN 219912691U
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- oil
- valve
- accident
- transformer
- pipe
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- 230000015556 catabolic process Effects 0.000 title claims abstract description 11
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 11
- 238000007599 discharging Methods 0.000 title abstract description 13
- 238000004880 explosion Methods 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 claims 3
- 230000006866 deterioration Effects 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 239000004519 grease Substances 0.000 claims 1
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
Abstract
An accident oil discharging system for preventing misoperation, oil leakage and oil degradation comprises an oil discharging pipe, wherein two ends of the oil discharging pipe are respectively communicated with a transformer and an accident oil pool, and a front electric valve and a rear manual valve are arranged on the oil discharging pipe. The utility model is used for solving the problems that the quality of the insulating oil product of the transformer is affected and the risk is brought to the normal operation of the transformer because the deteriorated oil product can enter the transformer.
Description
Technical Field
The utility model relates to an accident oil discharge system for preventing misoperation, oil leakage and oil degradation.
Background
The oil immersed transformer is widely applied to an electric power system at present, and when an accident happens, an accident oil drain valve is required to be manually opened to drain oil from the transformer according to the accident state. At present, two common setting modes of accident oil drain valves are:
firstly, arranging an accident oil drain valve at the side of a transformer body;
secondly, setting an accident oil drain valve after the accident oil drain pipe of the transformer passes through the firewall;
in the first mode, in an accident state, a person operating the accident oil drain valve has a large risk of personal injury. Currently, most large transformers do not employ this approach;
in the second mode, the risk of personal injury in the accident state is avoided, but a longer distance exists between the main body and the accident oil discharge valve, and oil products of pipelines in the longer distance are in a non-circulating dead oil state for a long time, so that the oil products are easy to deteriorate. Once the power grid is abnormal (such as power grid oscillation), the oil flow in the transformer is surging, and the degraded oil product in the section can enter the transformer, so that the quality of the insulating oil product of the transformer is affected, and risks are brought to the normal operation of the transformer.
Disclosure of Invention
The utility model aims to provide an accident oil discharge system for preventing misoperation, oil leakage and oil degradation, which is used for solving the problem that degraded oil can enter a transformer so as to influence the quality of insulating oil of the transformer and bring risk to normal operation of the transformer.
In order to solve the problems, the technical scheme of the utility model is as follows:
an accident oil discharging system for preventing misoperation, oil leakage and oil degradation comprises an oil discharging pipe, wherein two ends of the oil discharging pipe are respectively communicated with a transformer and an accident oil pool, and a front electric valve and a rear manual valve are arranged on the oil discharging pipe.
The anti-explosion device further comprises an anti-explosion wall, and the rear manual valve and the transformer are respectively arranged on two sides of the anti-explosion wall.
The lowest end of the oil drain pipe is communicated with a residual oil pipe, and a waste oil valve is arranged on the residual oil pipe.
A piston is arranged in an oil discharge pipe between the front electric valve and the rear manual valve, a sealing ring is arranged outside the piston, one end of the piston is fixedly connected with a ring plate, a valve plate is hinged on the ring plate, one end of the oil discharge pipe, which is close to the rear manual valve, is communicated with a compressed air pipe, and an air inlet ball valve is arranged on the compressed air pipe.
The beneficial effects of the utility model are as follows:
1. the double-valve structure of the front electric valve and the rear manual valve is adopted, so that the influence of residual oil in the oil discharge pipeline on the quality of the oil product of the transformer body is avoided, and the personal injury of operators is avoided to the greatest extent;
2. the pipeline is provided with a waste oil valve for recycling residual oil in the pipeline, so that the rear end of the front-mounted electric valve is free of oil residues, and the influence of the residual oil in the oil drain pipeline on the oil quality of the transformer body is further avoided;
3. the rear manual valve establishes a secondary defense line after misoperation of the front electric valve, ensures the running reliability of the transformer body, and ensures the overhaul flexibility of the accident oil discharge system.
Drawings
The utility model is further described with reference to the accompanying drawings:
figure 1 is a schematic view of the structure of the present utility model,
fig. 2 is a schematic view of a partial cross-sectional structure of the present utility model.
In the figure: the device comprises a front electric valve 2, a rear explosion-proof wall 3, a manual valve 4, a waste oil valve 5, an air inlet ball valve 6, a piston 7, an oil discharge pipe 8, an accident oil pool 9, a transformer 10, a sealing ring 11, a ring plate 12 and a valve plate 13.
Detailed Description
As shown in fig. 1 and 2, an accident oil discharging system for preventing misoperation, oil leakage and oil degradation comprises an oil discharging pipe 8 with two ends respectively communicated with a transformer 10 and an accident oil pool 9, wherein a front-mounted electric valve 2 and a rear-mounted manual valve 4 are arranged on the oil discharging pipe 8.
In normal operation, the front electric valve 2 and the rear manual valve 4 are closed, and no oil is in the oil discharge pipe 8. When an accident happens, an operation and maintenance person remotely controls to open the electric oil drain valve in the monitoring system according to the accident situation, then runs to the scene, and manually operates the rear oil drain valve, so that the oil drain of the accident is realized.
When the power grid is abnormally disturbed, such as power grid oscillation, the oil flow in the transformer 10 is surging, but no oil exists in the oil discharge pipe 8, and inferior oil is prevented from surging into the oil tank body of the transformer 10 under the non-return effect of the front non-return valve, so that the degradation influence on the oil in the transformer 10 is avoided.
In addition, during normal operation, the rear manual valve 4 is in a closed state, and if the front electric valve 2 leaks oil or is opened due to failure, the rear manual valve 4 also has a protection function on the oil tank of the transformer 10 body, so that the reliability of the oil tank body of the transformer 10 is ensured. Meanwhile, in the closed state of the front-mounted electric valve 2, the rear-mounted manual valve 4 can be checked, repaired or replaced at any time, so that the reliability of accident emergency treatment is ensured. Due to the arrangement of the front-mounted electric valve 2, the oil storage arrangement extension section of the oil tank of the transformer 10 body is reduced, the oil leakage probability is also reduced, and the running stability of the transformer 10 is improved.
The anti-explosion device further comprises an anti-explosion wall 3, and the rear manual valve 4 and the transformer 10 are respectively arranged on two sides of the anti-explosion wall 3. When the rear-mounted manual valve 4 is operated to discharge oil in an accident state, the rear-mounted manual valve is separated from the explosion-proof wall 3 of the transformer 10, so that personal injury of operators is avoided to the greatest extent.
The lowest end of the oil drain pipe 8 is communicated with a residual oil pipe, and a waste oil valve 5 is arranged on the residual oil pipe. The waste oil valve 5 recovers the residual oil in the pipeline, so that the rear end of the front-mounted electric valve 2 is free from oil residue, and the influence of the residual oil in the pipeline 8 of the oil drain pipe on the oil quality of the body of the transformer 10 is further avoided.
A piston 7 is arranged in an oil discharge pipe 8 between the front electric valve 2 and the rear manual valve 4, a sealing ring 11 is arranged outside the piston 7, one end of the piston 7 is fixedly connected with a ring plate 12, a valve plate 13 is hinged on the ring plate 12, a one-way valve is formed by the piston 7, the ring plate 12 and the valve plate 13, one end of the oil discharge pipe 8, which is close to the rear manual valve 4, is communicated with a compressed air pipe, and an air inlet ball valve 6 is arranged on the compressed air pipe.
When the periodical test is carried out on the front-mounted electric valve 2, oil of the transformer 10 enters the oil drain pipe 8 between the front-mounted electric valve 2 and the rear-mounted manual valve 4, at the moment, compressed air can be communicated with a compressed air pipe, after the compressed air enters the oil drain pipe 8, the compressed air pushes the valve plate 13 to seal the annular plate 12, so that the piston 7 is pushed to move towards the front-mounted electric valve 2, the oil of the transformer 10 in the oil drain pipe 8 between the front-mounted electric valve 2 and the rear-mounted manual valve 4 is reversely pushed into the transformer 10, and then the front-mounted electric valve 2 is closed, the waste oil valve 5 is opened, and residual oil in a pipeline is drained, so that the residual oil discharge amount can be reduced, and the cost is saved.
Claims (4)
1. The utility model provides an accident oil extraction system of mistake oil leak grease proofing degradation, includes oil drain pipe (8) that both ends communicate transformer (10) and accident oil pool (9) respectively, its characterized in that: the oil discharge pipe (8) is provided with a front electric valve (2) and a rear manual valve (4).
2. The accident oil drainage system for preventing malfunction oil leakage and oil degradation according to claim 1, wherein: the anti-explosion device further comprises an anti-explosion wall (3), and the rear manual valve (4) and the transformer (10) are respectively arranged at two sides of the anti-explosion wall (3).
3. The accident oil drainage system for preventing malfunction oil leakage and oil degradation according to claim 1, wherein: the lowest end of the oil drain pipe (8) is communicated with a residual oil pipe, and a waste oil valve (5) is arranged on the residual oil pipe.
4. An accident oil drain system for preventing malfunction oil leakage and deterioration according to any one of claims 1 to 3, characterized in that: a piston (7) is arranged in an oil discharge pipe (8) between the front electric valve (2) and the rear manual valve (4), a sealing ring (11) is arranged outside the piston (7), one end of the piston (7) is fixedly connected with a ring plate (12), a valve plate (13) is hinged on the ring plate (12), one end of the oil discharge pipe (8) close to the rear manual valve (4) is communicated with a compressed air pipe, and an air inlet ball valve (6) is arranged on the compressed air pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320962599.1U CN219912691U (en) | 2023-04-25 | 2023-04-25 | Accident oil discharging system capable of preventing misoperation, oil leakage and oil degradation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320962599.1U CN219912691U (en) | 2023-04-25 | 2023-04-25 | Accident oil discharging system capable of preventing misoperation, oil leakage and oil degradation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219912691U true CN219912691U (en) | 2023-10-27 |
Family
ID=88467830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320962599.1U Active CN219912691U (en) | 2023-04-25 | 2023-04-25 | Accident oil discharging system capable of preventing misoperation, oil leakage and oil degradation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219912691U (en) |
-
2023
- 2023-04-25 CN CN202320962599.1U patent/CN219912691U/en active Active
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