CN220272267U - Device for preventing false oil level of transformer oil conservator - Google Patents
Device for preventing false oil level of transformer oil conservator Download PDFInfo
- Publication number
- CN220272267U CN220272267U CN202321929010.4U CN202321929010U CN220272267U CN 220272267 U CN220272267 U CN 220272267U CN 202321929010 U CN202321929010 U CN 202321929010U CN 220272267 U CN220272267 U CN 220272267U
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- Prior art keywords
- oil
- pipeline
- transformer
- oil level
- valve
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- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 24
- 238000000034 method Methods 0.000 abstract description 7
- 230000001502 supplementing effect Effects 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 229910052573 porcelain Inorganic materials 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a device for preventing false oil level of a transformer oil pillow, which comprises a transformer oil pillow, a ripple compensator and an exhaust port, wherein the ripple compensator is arranged in the transformer oil pillow, the upper end of the ripple compensator is connected with the exhaust port, an oil level gauge is arranged in the transformer oil pillow, the device also comprises an exhaust valve, a bypass valve and a check valve, one end of the exhaust valve is connected with the exhaust port through a flange, the other end of the exhaust valve is connected with a parallel pipeline B end, the bypass valve and the check valve are respectively arranged on two branch pipelines of the parallel pipeline, the end A of the parallel pipeline is connected with an oil drum through a rubber hose, and a three-way pipe fitting is adopted at the joint of two branches of the parallel pipeline; the device is used for treating the phenomenon that air is pumped back to the conservator in the process of supplementing the oil of the transformer, the phenomenon of the false oil level is avoided, the device is simple in structure, the device can be modified on the basis of the original system, the modification amount is small, and the cost is low.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a device for preventing a transformer oil pillow from being false in oil level.
Background
The ripple compensator in the transformer oil conservator is an air bag with an inner cavity communicated with the atmosphere, the air bag is placed in insulating oil and communicated with the outside atmosphere through a breathing port, when the insulating oil generates volume expansion or contraction along with temperature change, the ripple compensator is promoted to stretch out and draw back, the size of an oil cavity in a cabinet is changed, volume change compensation of the insulating oil is realized, in the process of supplementing oil to a transformer, a valve of the breathing port of the oil conservator is opened after oil injection is finished according to regulation rules, an exhaust port is closed, the ripple compensator in the oil conservator is isobarically pressed with the outside, the weight of the oil compresses the compensator to contract, the oil level displayed by an oil level gauge is increased, the false oil level is caused, the actual operation shows that the oil level is at least 1.5-2.5 scales higher than the standard oil level, the false oil level can not truly reflect the oil level in the oil conservator, the oil shortage operation of the transformer is caused, the safety of the power transformation operation is endangered, and in order to stop the phenomenon of the false oil level, a device for preventing the oil conservator from pumping back in the oil supplementing process is needed.
Chinese patent publication No. CN218333435U discloses an oil immersed transformer bushing head device for preventing gas backflow, comprising a tightening lower pressing plate, a tightening upper pressing plate, a spring, a tightening nut and a locking bolt; when the transformer operates normally and vertically, the transformer oil in the oil storage cabinet is integrally communicated with the transformer oil in the porcelain bushing, and when the transformer expands with heat and contracts with cold, the oil level in the product can still rise and fall normally, so that the normal operation of the product is not influenced; when the product is transported horizontally, the oil through hole on the tightening lower pressing plate is higher than the edge of the inner diameter of the porcelain sleeve, so that the oil in the porcelain sleeve cannot flow backward into the oil storage cabinet, and the air in the oil storage cabinet cannot flow into the porcelain sleeve, so that the function of preventing the gas at the head of the sleeve from entering the middle of the porcelain sleeve during horizontal transportation is achieved; the main structure and the size of the existing porcelain bushing do not need to be changed; only the size and the structure of part of the parts need to be slightly changed, the realization is simple and convenient, and the cost is low; but this patent does not address the problem of false oil levels.
Disclosure of Invention
The utility model provides a device for preventing the false oil level of a transformer oil pillow, which is used for treating the phenomenon of pumping air back to the transformer oil pillow in the process of supplementing oil to the transformer, avoiding the phenomenon of false oil level, and being capable of being modified on the basis of the original system, small in modification amount and low in cost.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the utility model provides a device for preventing false oil level of transformer oil pillow, includes transformer oil pillow, ripple compensator and gas vent, ripple compensator sets up in transformer oil pillow, and the gas vent is connected to ripple compensator upper end, still includes exhaust valve, bypass valve and check valve, exhaust valve one end is through flange joint gas vent, and the exhaust valve other end is connected parallelly connected pipeline B end, sets up bypass valve and check valve on two lateral pipes of parallelly connected pipeline respectively, and parallelly connected pipeline A end connection oil drum.
Further, the transformer oil pillow comprises an oil filling port pipeline and a breathing port pipeline, the lower end of the transformer oil pillow is provided with the oil filling port pipeline, the side face of the transformer oil pillow is provided with the breathing port pipeline, the corrugated compensator is communicated with the outside atmosphere through the breathing port pipeline, the oil filling port pipeline is provided with an oil filling port valve, and the breathing port pipeline is provided with a breathing port valve.
Furthermore, the joint of the two branches of the parallel pipeline adopts a three-way pipe fitting.
Further, the parallel pipeline A is connected with the oil drum through a rubber hose.
Further, the oil level gauge comprises an oil level gauge measuring device and an oil level gauge display device, wherein the oil level gauge measuring device is arranged in the corrugated compensator, and the oil level gauge display device is arranged on the outer wall of the transformer oil pillow on the same side as the breathing port pipeline.
Compared with the prior art, the utility model has the beneficial effects that:
1) The device is utilized to treat the phenomenon that air is pumped back to the oil conservator in the oil supplementing process of the transformer, and the phenomenon of the false oil level is avoided;
2) The device has simple structure, can be modified on the basis of the original system, and has small modification amount and low cost.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a top view of the ripple compensator and the connecting pipe according to the present utility model.
In the figure: 1. the transformer oil conservator 2, the exhaust port 4 of the corrugated compensator 3, the oil filling port pipeline 5, the breathing port pipeline 6, the oil filling port valve 7, the breathing port valve 8, the exhaust valve 9, the parallel pipeline B end 10, the bypass valve 11, the check valve 12, the parallel pipeline A end 13, the rubber hose 14, the oil drum 15 and the oil level indicator display device
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
referring to fig. 1 and 2, the device for preventing the false oil level of the transformer oil conservator comprises a transformer oil conservator 1, a ripple compensator 2, an exhaust port 3, an exhaust valve 8, a bypass valve 10 and a check valve 11, wherein the ripple compensator 2 is arranged in the transformer oil conservator 1, the upper end of the ripple compensator 2 is connected with the exhaust port 3, one end of the exhaust valve 8 is connected with the exhaust port 3 through a flange, the other end of the exhaust valve 8 is connected with a parallel pipeline B end 9, the two branch pipelines of the parallel pipeline are respectively provided with the bypass valve 10 and the check valve 11, the A end 12 of the parallel pipeline is connected with an oil drum 14 through a rubber hose 13, and the joint of the two branches of the parallel pipeline adopts a three-way pipe fitting.
Further, the transformer oil pillow 1 comprises an oil filling port pipeline 4 and a breathing port pipeline 5, the lower end of the transformer oil pillow 1 is provided with the oil filling port pipeline 4, the side face of the transformer oil pillow 1 is provided with the breathing port pipeline 5, the corrugated compensator 2 is communicated with the outside atmosphere through the breathing port pipeline 5, the oil filling port pipeline 4 is provided with an oil filling port valve 6, and the breathing port pipeline 5 is provided with a breathing port valve 7.
Further, the oil level gauge comprises an oil level gauge measuring device and an oil level gauge display device 15, wherein the oil level gauge measuring device is arranged in the corrugated compensator 2, and the oil level gauge display device 15 is arranged on the outer wall of the transformer oil pillow 1 on the same side as the breathing port pipeline 5.
The working principle is as follows: when the oil is replenished and exhausted, the exhaust valve 8 and the bypass valve 10 on the device are opened, oil passes through the exhaust valve 8 to the bypass valve 10, then is connected into the oil drum 14 for receiving oil through the rubber hose 13, the breathing port valve 7 is closed after the oil replenishment is finished, the bypass valve 10 is closed, the oil way of oil return of the transformer oil pillow 1 is that the oil in the oil drum 14 passes through the check valve 11 to the exhaust valve and finally reaches the transformer oil pillow 1, the exhaust port valve is closed after the back suction is finished, the breathing port valve 7 is opened, at the moment, the internal space of the transformer oil pillow 1 is in an oil filling state, no air enters, no redundant space exists, the liquid level after the internal contraction of the corrugated compensator 2 is measured through the liquid level meter measuring device, thus the volume of the oil in the transformer oil pillow 1 is reflected, and the measured value is observed on the liquid level meter display device 15.
The above examples are implemented on the premise of the technical scheme of the present utility model, and detailed implementation manners and specific operation processes are given, but the protection scope of the present utility model is not limited to the above examples. The methods used in the above examples are conventional methods unless otherwise specified.
Claims (5)
1. The utility model provides a device for preventing false oil level of transformer oil pillow, includes transformer oil pillow, ripple compensator and gas vent, ripple compensator sets up in transformer oil pillow, and the gas vent is connected to ripple compensator upper end, its characterized in that still includes exhaust valve, bypass valve and check valve, exhaust valve one end passes through flange joint gas vent, and the exhaust valve other end is connected parallelly connected pipeline B end, sets up bypass valve and check valve on two lateral conduits of parallelly connected pipeline respectively, and parallelly connected pipeline A end connects the oil drum.
2. The device for preventing false oil level of a transformer oil conservator according to claim 1, wherein the transformer oil conservator comprises an oil filling port pipeline and a breathing port pipeline, the oil filling port pipeline is arranged at the lower end of the transformer oil conservator, the breathing port pipeline is arranged at the side face of the transformer oil conservator, the ripple compensator is communicated with the outside atmosphere through the breathing port pipeline, the oil filling port pipeline is provided with an oil filling port valve, and the breathing port pipeline is provided with a breathing port valve.
3. The device for preventing the false oil level of the transformer oil conservator according to claim 1, wherein a three-way pipe fitting is adopted at the joint of two branches of the parallel pipeline.
4. A device for preventing false oil level of a transformer oil conservator according to claim 1, wherein the end a of the parallel pipeline is connected with an oil drum through a rubber hose.
5. The device for preventing false oil level of a transformer oil conservator according to claim 1, further comprising an oil level gauge including an oil level gauge measuring device and an oil level gauge display device, the oil level gauge measuring device being mounted in the corrugated compensator, the oil level gauge display device being mounted on an outer wall of the transformer oil conservator on the same side as the breathing port conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321929010.4U CN220272267U (en) | 2023-07-21 | 2023-07-21 | Device for preventing false oil level of transformer oil conservator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321929010.4U CN220272267U (en) | 2023-07-21 | 2023-07-21 | Device for preventing false oil level of transformer oil conservator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220272267U true CN220272267U (en) | 2023-12-29 |
Family
ID=89311408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321929010.4U Active CN220272267U (en) | 2023-07-21 | 2023-07-21 | Device for preventing false oil level of transformer oil conservator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220272267U (en) |
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2023
- 2023-07-21 CN CN202321929010.4U patent/CN220272267U/en active Active
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