CN211125303U - Oil conservator for transformer - Google Patents
Oil conservator for transformer Download PDFInfo
- Publication number
- CN211125303U CN211125303U CN202020064179.8U CN202020064179U CN211125303U CN 211125303 U CN211125303 U CN 211125303U CN 202020064179 U CN202020064179 U CN 202020064179U CN 211125303 U CN211125303 U CN 211125303U
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- Prior art keywords
- conservator
- transformer
- oil
- pipe
- pressure
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- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000005483 Hooke's law Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model discloses a conservator for transformer, including the conservator case, the conservator case passes through the connecting plate and links to each other with the transformer, be provided with the intercommunication pipe that one end is connected on the transformer on the conservator case, the downside at the conservator case is connected to the other end of intercommunication pipe, the both ends of conservator case respectively with first end cover and second end cover sealing connection, the inside of conservator case is provided with flexible pipeline, one end and one side sealing connection of first end cover of flexible pipeline, the other end and the third end cover sealing connection of flexible pipeline, the upside of conservator case is provided with the pressure release pipe, be provided with pressure release switch on the pressure release pipe. This conservator box sets up corrugated metal pipe, can be effectual completely cut off fluid and air, can not cause the pollution of fluid. Meanwhile, the pressure relief pipe is arranged, when the oil conservator box can not meet the conditions completely, the pressure relief pipe is controlled to be opened and oil in the oil conservator box is discharged, the pressure inside the transformer is effectively reduced, and the purpose of pressure relief is achieved.
Description
Technical Field
The utility model relates to a transformer, in particular to conservator for transformer.
Background
The oil-immersed transformer has the advantages of good oil insulation performance and heat conduction performance of the transformer, simultaneously, the transformer oil is cheap, and the problems of large-capacity heat dissipation and high-voltage insulation of the transformer can be solved. The oil immersed transformer is filled with transformer oil, an oil conservator is required to be arranged on the upper side of the transformer in order to better control the pressure inside the transformer, and the inner space of the oil conservator is in a sealed state in order to avoid the transformer oil inside the oil conservator from being polluted. Under normal conditions, the pressure in the transformer can be effectively relieved in the space inside the conservator; however, under special circumstances, the problem of pressure relief cannot be solved after the inner space of the conservator is filled with transformer liquid, and meanwhile, the pressure inside the transformer continues to increase, so that the transformer is easy to break or even explode due to overlarge pressure, and the oil is filled in the transformer, so that fire accidents are easily caused, and the circuit is not electrified any more.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a conservator for transformer.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a conservator for transformer, includes the conservator case, the conservator case passes through the connecting plate and links to each other with the transformer, be provided with one end on the conservator case and connect intercommunication pipe on the transformer, the other end of intercommunication pipe is connected the downside of conservator case, the both ends of conservator case respectively with first end cover and second end cover sealing connection, the inside of conservator case is provided with flexible pipeline, flexible pipeline one end with one side sealing connection of first end cover, flexible pipeline's the other end and third end cover sealing connection, the upside of conservator case is provided with the pressure release pipe, be provided with pressure release switch on the pressure release pipe.
Further, the pressure relief switch comprises a valve body and a valve cover connected to the upper side of the valve body in a sealing mode, a valve cavity is formed between the valve body and the valve cover, a pressure spring is arranged in the valve cavity, one end of the pressure spring is connected with an elastic cylindrical valve core, the other end of the pressure spring is connected with the valve cover, an outflow channel is arranged on the valve cover, an inflow channel is arranged on the valve body, the outlet end of the inflow channel is provided with a cylindrical slide way in interference fit with the cylindrical valve core, and the diameter of the inflow channel is smaller than that of the cylindrical valve core.
Furthermore, the pressure spring is a pagoda spring, and one end of the pagoda spring with the smaller diameter is connected with the cylindrical valve core.
Furthermore, a positioning bulge is arranged on the cylindrical valve core and is positioned on the inner side of the pressure spring.
Furthermore, the inlet end of the outflow channel is coaxial with the pagoda spring, and the diameter of the pagoda spring is larger than that of the outflow channel.
Further, the valve cavity and the cylindrical slideway are in transition through an inclined plane.
Furthermore, the telescopic pipeline is a corrugated pipe made of metal.
Furthermore, a vent pipe is arranged on the first end cover, one end of the vent pipe is communicated with the atmosphere, and the other end of the vent pipe is communicated with the interior of the corrugated pipe.
Furthermore, the oil pillow box is a cylindrical box body, a sliding block is arranged on the circumference of the third end cover, and a guide groove matched with the sliding block is formed in the oil pillow box.
Furthermore, an oil filling opening is connected to the communicating pipe, and an oil filling switch is arranged on the oil filling opening.
The utility model has the advantages that:
1) this flexible pipeline of conservator incasement portion adopts metal material's bellows, can be effectual isolated with fluid and air, can not cause oil pollution. Simultaneously, the upper side of the oil pillow box is provided with a pressure relief pipe, when the pressure inside the transformer is larger and larger, and the oil pillow box can not meet the conditions completely, a pressure relief switch for controlling the pressure relief pipe is opened under the pressure, so that the oil in the oil pillow box can be discharged from the pressure relief pipe, the pressure inside the transformer is effectively reduced, the purpose of pressure relief is achieved, and the transformer can not be damaged.
2) Set up the slider on the circumference of third end cover, be provided with in conservator incasement portion with slider complex guide way, can make the flexible pipeline have not wobbling removal in conservator incasement portion for the oil storage space of conservator case resistance is littleer when changing, can be better for the transformer pressure release.
3) The pressure spring in the pressure relief switch is replaceable, meanwhile, the pressure spring has multiple types, the elastic force of the pressure springs of different types is different, so that the types of the pressure springs can be selected according to the pressure intensity born by the transformer, and the pressure relief switch can be suitable for the transformers with different pressure intensities.
4) The surface sealing is formed between the cylindrical valve core and the cylindrical slideway, so that air is effectively prevented from entering the oil conservator box, and the oil in the oil conservator box cannot be polluted.
Drawings
FIG. 1 is a schematic front view of an oil conservator;
FIG. 2 is a schematic view of the internal structure of the pressure relief switch in a sealed state;
FIG. 3 is a schematic diagram of an internal structure of a pressure relief switch in a critical state when oil is about to escape;
in the figure, 1-oil pillow box, 2-connecting plate, 3-first end cover, 4-second end cover, 5-telescopic pipeline, 6-third end cover, 7-pressure relief pipe, 8-pressure relief switch, 9-oil injection port, 10-intercommunication pipe, 11-valve body, 12-valve cavity, 13-pressure spring, 14-cylindrical valve core, 15-valve cover, 16-outflow channel, 17-ventilation pipe, 18-oil injection switch, 19-sliding block, 20-guide groove, 21-inflow channel, 22-cylindrical slideway, 23-positioning projection and 24-inclined plane.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
the utility model provides a conservator for transformer, includes conservator case 1, conservator case 1 links to each other with the transformer through connecting plate 2, it connects to be provided with one end on the conservator case 1 intercommunication pipe 10 on the transformer, the other end of intercommunication pipe 10 is connected the downside of conservator case 1, the both ends of conservator case 1 respectively with first end cap 3 and 4 sealing connection of second end cap, the inside of conservator case 1 is provided with flexible pipeline 5, the one end of flexible pipeline 5 with one side sealing connection of first end cap 3, the other end and the 6 sealing connection of third end cap of flexible pipeline 5, the upside of conservator case 1 is provided with pressure release pipe 7, be provided with pressure release switch 8 on the pressure release pipe 7.
Preferably, the telescopic pipe 5 is a corrugated pipe made of metal. The telescopic pipeline 5 is made of a corrugated pipe made of metal materials, so that oil can be effectively isolated from air, and pollution of the oil cannot be caused. Meanwhile, the pressure relief pipe 7 is arranged on the upper side of the oil conservator box 1, when the pressure inside the transformer is increased and the oil conservator box 1 cannot meet the conditions, the pressure relief switch for controlling the pressure relief pipe 7 is opened under the pressure, oil in the oil conservator box 1 can be discharged from the pressure relief pipe 7, the pressure inside the transformer is effectively reduced, the purpose of pressure relief is achieved, the transformer cannot be damaged, the ventilation pipe 17 is arranged on the first end cover 3, one end of the ventilation pipe 17 is placed in the air, and the other end of the ventilation pipe 17 is communicated with the inside of the corrugated pipe.
Preferably, the pressure relief switch 8 includes a valve body 11 and a valve cover 15 connected to the upper side of the valve body 11 in a sealing manner, a valve cavity 12 is formed between the valve body 11 and the valve cover 15, a pressure spring 13 is arranged in the valve cavity 12, one end of the pressure spring 13 is connected to an elastic cylindrical valve core 14, the other end of the pressure spring 13 is connected to the valve cover 15, an outflow channel 16 is arranged on the valve cover 15, an inflow channel 21 is arranged on the valve body 11, an outlet end of the inflow channel 21 is provided with a cylindrical slide way 22 in interference fit with the cylindrical valve core 14, and the diameter of the inflow channel 21 is smaller than that of the cylindrical valve core 14. And a sealing ring is arranged between the valve body 11 and the valve cover 15 to prevent oil from flowing out. The purpose of setting the diameter of the inflow passage 21 smaller than the diameter of the spool 14 is to control the length of the spool slide 22 while also serving as a limit for the spool 14. The surface seal is formed between the cylindrical valve core 14 and the cylindrical slideway 22, so that air is effectively prevented from entering the oil pillow box 1, and the oil in the oil pillow box 1 cannot be polluted.
Preferably, the pressure spring 13 is a pagoda spring, and one end of the pagoda spring with a smaller diameter is connected with the cylindrical valve core 14. The cylindrical valve core 14 is provided with a positioning bulge 23, and the positioning bulge 23 is positioned on the inner side of the pressure spring 13. The positioning projection 23 is provided to better control the movement of the spool 14 only in the axial direction in the spool slide 22. The inlet end of the outflow channel 16 is coaxial with the pagoda spring, and the diameter of the pagoda spring is larger than that of the outflow channel 16, so that the pagoda spring can be conveniently installed, and the pressure of the pagoda spring can be borne. The valve cavity 12 and the cylindrical slideway 22 are excessive through the inclined plane 24, when oil unloading is required, the cylindrical valve core 14 is completely pressed into the valve cavity 12, after the oil unloading is finished, the cylindrical valve core 14 needs to return into the cylindrical slideway 22, and in order to achieve resistance-free return into the cylindrical slideway 22, the valve cavity 12 and the cylindrical slideway 22 are excessive through the inclined plane 24.
Under the action of pressure, according to hooke's law, F = k △ x, wherein F is pressure, k is stiffness coefficient of the spring, △ x is spring deformation amount, the cylindrical valve core 14 will generate corresponding displacement in the vertical direction against the elastic force of the pressure spring 13 when being pressurized, and the displacement amount is proportional to the stressed pressure value, when the cylindrical valve core 14 is pressed into the valve cavity 12 and just discharges oil, the pressure spring 13 reaches a threshold value, for example, the limit pressure of the oil pillow case 1 is set to 200kPa, the threshold value of the pressure spring 13 is selected to be 200kPa, when the pressure in the transformer reaches 200kPa, the compressed position of the pressure spring makes the cylindrical valve core 14 just separate from the cylindrical slideway 22, if the pressure of the oil pillow case 1 continues to increase at the moment, the cylindrical valve core 14 directly separates from the cylindrical slideway 22 and starts oil discharging operation, the pressure spring 13 can be set into multiple models, each model has different coefficients, so that the threshold values are different, and thus the requirements of different oil pillow pressures can be met.
Preferably, the oil pillow case 1 is a cylindrical case, a sliding block 19 is arranged on the circumference of the third end cover 6, and a guide groove 20 matched with the sliding block 19 is arranged inside the oil pillow case 1. Therefore, the telescopic pipeline 5 can move in the oil conservator box 1 without swinging, so that the oil storage space of the oil conservator box 1 can be changed flexibly, and the pressure relief can be better performed on the transformer.
Preferably, an oil filling opening 21 is connected to the communicating pipe 10, and an oil filling switch 22 is disposed on the oil filling opening 21. If oil is discharged from the pressure relief pipe 7, the oil quantity in the transformer is insufficient, then the oil quantity in the transformer is supplemented, so an oil filling opening 21 is arranged, meanwhile, in order to seal the oil way in the transformer, an oil filling switch 22 is arranged on the oil filling opening 21, the oil filling switch 22 is opened during oil filling, and the rest conditions are closed.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. The utility model provides a conservator for transformer which characterized in that: the transformer oil-water separation device is characterized by comprising an oil pillow box (1), wherein the oil pillow box (1) is connected with a transformer through a connecting plate (2), one end of an intercommunication pipe (10) arranged on the transformer is connected to the oil pillow box (1), the other end of the intercommunication pipe (10) is connected to the lower side of the oil pillow box (1), two ends of the oil pillow box (1) are respectively connected with a first end cover (3) and a second end cover (4) in a sealing mode, a telescopic pipeline (5) is arranged inside the oil pillow box (1), one end of the telescopic pipeline (5) is connected with one side of the first end cover (3) in a sealing mode, the other end of the telescopic pipeline (5) is connected with a third end cover (6) in a sealing mode, a pressure relief pipe (7) is arranged on the upper side of the oil pillow box (1), and a pressure relief switch (8) is arranged on the pressure relief.
2. The conservator for transformer as claimed in claim 1, wherein: pressure release switch (8) include valve body (11) and sealing connection valve gap (15) at valve body (11) upside, valve body (11) with form valve pocket (12) between valve gap (15), be provided with pressure spring (13) in valve pocket (12), the one end of pressure spring (13) links to each other with elastic cylindricality case (14), the other end of pressure spring (13) with valve gap (15) link to each other, be provided with outflow passageway (16) on valve gap (15), be provided with inflow passageway (21) on valve body (11), the exit end of inflow passageway (21) be provided with cylindricality slide (22) of cylindricality case (14) interference fit, the diameter of inflow passageway (21) is less than the diameter of cylindricality case (14).
3. The conservator for transformer as claimed in claim 2, wherein: the pressure spring (13) is a pagoda spring, and one end with a smaller diameter on the pagoda spring is connected with the cylindrical valve core (14).
4. The conservator for transformer as claimed in claim 3, wherein: and a positioning bulge (23) is arranged on the cylindrical valve core (14), and the positioning bulge (23) is positioned on the inner side of the pressure spring (13).
5. The conservator for transformer as claimed in claim 3, wherein: the inlet end of the outflow channel (16) is coaxial with the pagoda spring, and the diameter of the pagoda spring is larger than that of the outflow channel (16).
6. The conservator for transformer as claimed in claim 2, wherein: the valve cavity (12) and the cylindrical slideway (22) are in transition through an inclined plane (24).
7. The conservator for transformer as claimed in claim 1, wherein: the telescopic pipeline (5) is a corrugated pipe made of metal.
8. The conservator for transformer as claimed in claim 7, wherein: the first end cover (3) is provided with a vent pipe (17), one end of the vent pipe (17) is communicated with the atmosphere, and the other end of the vent pipe is communicated with the interior of the corrugated pipe.
9. The conservator for transformer as claimed in claim 1, wherein: the oil pillow box (1) is a cylindrical box body, a sliding block (19) is arranged on the circumference of the third end cover (6), and a guide groove (20) matched with the sliding block (19) is formed in the oil pillow box (1).
10. The conservator for transformer as claimed in claim 1, wherein: an oil filling opening (9) is connected to the communicating pipe (10), and an oil filling switch (18) is arranged on the oil filling opening (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020064179.8U CN211125303U (en) | 2020-01-13 | 2020-01-13 | Oil conservator for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020064179.8U CN211125303U (en) | 2020-01-13 | 2020-01-13 | Oil conservator for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211125303U true CN211125303U (en) | 2020-07-28 |
Family
ID=71703707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020064179.8U Active CN211125303U (en) | 2020-01-13 | 2020-01-13 | Oil conservator for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211125303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113643879A (en) * | 2021-07-28 | 2021-11-12 | 唐丽铭 | Transformer of annular conservator |
-
2020
- 2020-01-13 CN CN202020064179.8U patent/CN211125303U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113643879A (en) * | 2021-07-28 | 2021-11-12 | 唐丽铭 | Transformer of annular conservator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 488 Xingyuan 9th Road, Xinjin Industrial Park, Xinjin County, Chengdu City, Sichuan Province, 6114300 Patentee after: Sichuan Zhongxin General Electric Energy Co.,Ltd. Country or region after: China Address before: No. 488 Xingyuan 9th Road, Xinjin Industrial Park, Xinjin County, Chengdu City, Sichuan Province, 6114300 Patentee before: Sichuan Zhongxin General Electric Power Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |