CN215522119U - Pressure release valve for oil-immersed transformer - Google Patents
Pressure release valve for oil-immersed transformer Download PDFInfo
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- CN215522119U CN215522119U CN202120125860.3U CN202120125860U CN215522119U CN 215522119 U CN215522119 U CN 215522119U CN 202120125860 U CN202120125860 U CN 202120125860U CN 215522119 U CN215522119 U CN 215522119U
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- fixedly connected
- pressure
- oil
- relief valve
- pressure release
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- 238000007789 sealing Methods 0.000 claims description 20
- 238000000926 separation method Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 9
- 230000009466 transformation Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a pressure release valve for an oil-immersed transformer, which comprises a pressure release valve shell, wherein the left side of the bottom position of the pressure release valve shell is fixedly connected with an oil inlet, the top position of the oil inlet is fixedly connected with an oil inlet knob, the middle position of the pressure release valve shell is fixedly connected with a buckle, the right side of the bottom position of the pressure release valve shell is fixedly connected with a pressure release opening, the top position of the pressure release valve shell is fixedly connected with a push handle, and the bottom position of the push handle is fixedly connected with a fixing plate. This a relief valve for oil-immersed transformer, the intelligence that can be quick sets up the pressure size of pressure release valve, makes the pressure in the transformer reach suitable numerical value for pressure in the transformer is balanced with the external pressure, has guaranteed that the cooling oil when taking place the inflation because of the temperature risees, and the relief valve can leak the oil circuit, and the while is guaranteeing the pressure range of transformer safety work, only leaks partly, has practiced thrift the loss of cooling oil.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a pressure relief valve for an oil-immersed transformer.
Background
The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, main components are a primary coil, a secondary coil and an iron core (magnetic core), the main functions are voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer) and the like, the relief valve is named as a safety valve, the relief valve can be automatically opened and closed according to the working pressure of a system, the safety of the system is generally protected by being installed on equipment or a pipeline of a closed system, when the pressure in the equipment or the pipeline exceeds the set pressure of the relief valve, namely, the relief valve is automatically opened, the medium pressure in the equipment and the pipeline is ensured to be below the set pressure, the equipment and the pipeline are protected, accidents are prevented, but the existing relief valve for the oil-immersed transformer has the following defects:
1. the conventional pressure relief valve for the oil-immersed transformer generally comprises a valve body, a valve cover and a valve pad, wherein the valve pad is extruded at a valve opening through the valve cover, the valve cover is in non-sealing connection with a valve body pipe opening, and when pressure is generated inside the transformer, the pressure impacts the valve pad to be discharged from a gap between the valve cover and the valve body pipe opening. Although the structure can play a certain pressure relief role, the structure usually needs great pressure to push the valve gasket open.
2. The pressure of the existing pressure relief valve for the oil-immersed transformer can not be adjusted, the pressure relief valve can only be used under a single pressure condition, and when the transformer works, the heating condition is different due to different loads, so that the pressure rise condition of cooling oil is unequal, and the pressure relief valve is difficult to control.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides the pressure relief valve for the oil-immersed transformer, which solves the problems that the pressure of the pressure relief valve cannot be adjusted and can only be used under a single pressure condition, and the pressure of cooling oil is not increased under different conditions due to different heating conditions caused by different loads when the transformer works, so that the pressure relief valve is difficult to control.
(II) technical scheme
In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a relief valve for oil-immersed transformer which characterized in that: including the pressure relief valve casing, the bottom position left side fixedly connected with oil inlet of pressure relief valve casing, the top position fixedly connected with oil feed knob of oil inlet, the intermediate position fixedly connected with buckle of pressure relief valve casing, the bottom position right side fixedly connected with pressure release mouth of pressure relief valve casing.
Preferably, the top position of the pressure relief valve shell is fixedly connected with a push handle, the bottom position of the push handle is fixedly connected with a fixed plate, the bottom position of the fixed plate is fixedly connected with a spring, and the bottom position of the spring is fixedly connected with a baffle.
Preferably, the bottom position of baffle fixed mounting has the piston, the outer wall intermediate position fixed mounting of piston has the second sealing washer.
Preferably, the bottom position of the piston is fixedly provided with a first sealing ring, the left side of the first sealing ring is fixedly connected with a fixed spring, and the right side of the first sealing ring is fixedly connected with a blocking piece.
Preferably, the outer side of the pressure relief opening is fixedly connected with a pipeline, a control valve is fixedly installed at the tail end of the pipeline, a control pipeline is fixedly installed at the bottom of the control valve, and a controller is fixedly installed at the bottom of the pipeline.
Preferably, the top position of the controller is fixedly provided with a display screen, and the bottom position of the display screen is fixedly provided with a key.
Preferably, the top position fixed mounting of control valve has the condenser pipe, the top position fixed mounting of condenser pipe has the funnel, the top position fixed mounting of funnel has the breather pipe.
(III) advantageous effects
The utility model provides a pressure relief valve for an oil-immersed transformer. The method has the following beneficial effects:
(1) this a relief valve for oil-immersed transformer, case pressure release mouth outside fixed connection has the pipeline, the terminal fixed position of pipeline installs the control valve, the bottom fixed position of control valve installs the control pipeline, the bottom fixed position of pipeline installs the controller, the top fixed position of controller installs the display screen, can set up the pressure size of relief valve fast, make the pressure in the transformer reach suitable numerical value, make pressure in the transformer balanced with the external pressure, guaranteed that the transformer can last effectual normal work, the leakage of coolant oil has also been practiced thrift simultaneously.
(2) This a relief valve for oil-immersed transformer, the bottom fixed position of baffle installs the piston, and the outer wall intermediate position fixed mounting of piston has the second sealing washer, and the bottom fixed position of piston installs first sealing washer, the use of two-layer sealing washer for the seal of device improves once more, guarantees that the device can be effectual work always.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a top view of the present invention as a whole;
FIG. 3 is a schematic view of a pressure relief device according to the present invention;
FIG. 4 is a schematic structural view of a pressure relief control device according to the present invention;
in the figures 1-4, 1-a pressure relief valve shell, 2-an oil inlet knob, 3-an oil inlet, 4-a first sealing ring, 5-a second sealing ring, 6-a piston, 7-a baffle, 8-a spring, 9-a pushing handle, 10-a fixing plate, 11-a buckle, 12-a fixing spring, 13-a baffle, 14-a pressure relief opening, 15-a pipeline, 16-a control valve, 17-a condensation pipe, 18-a control pipeline, 19-a controller, 20-a display screen, 21-a key, 22-a funnel and 23-a vent pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention provides a technical solution: the utility model provides a relief valve for oil-immersed transformer which characterized in that: including relief valve casing 1, the bottom position left side fixedly connected with oil inlet 3 of relief valve casing 1, the top position fixedly connected with oil feed knob 2 of oil inlet 3, the intermediate position fixedly connected with buckle 11 of relief valve casing 1, the bottom position right side fixedly connected with pressure release mouth 14 of relief valve casing 1.
The top position fixedly connected with pushing hands 9 of pressure release valve casing 1, the bottom position fixedly connected with fixed plate 10 of pushing hands 9, the bottom position fixedly connected with spring 8 of fixed plate 10, the bottom position fixedly connected with baffle 7 of spring 8 resets the device that can be quick, makes its position that reachs normal work.
The bottom position fixed mounting of baffle 7 has piston 6, the outer wall intermediate position fixed mounting of piston 6 has second sealing washer 5, guarantees the leakproofness between piston and the pressure release valve casing, has guaranteed the normal work of device.
The bottom position fixed mounting of piston 6 has first sealing washer 4, the left side fixedly connected with fixed spring 12 of first sealing washer 4, the right side fixedly connected with separation blade 13 of first sealing washer 4 has the operation of a water conservancy diversion to the coolant oil for the device keeps normal work always.
14 outside position fixedly connected with pipeline 15 of pressure release mouth, the terminal position fixed mounting of pipeline 15 has control valve 16, the bottom position fixed mounting of control valve 16 has control circuit 18, the bottom position fixed mounting of control circuit 18 has controller 19, can the pressure of intelligent control relief valve, has improved work efficiency.
The top position fixed mounting of controller 19 has display screen 20, the bottom position fixed mounting of display screen 20 has button 21, and through the setting of button, the quick pressure size that sets up pressure relief valve improves work efficiency.
The top fixed mounting of control valve 16 has condenser pipe 17, the top fixed mounting of condenser pipe 17 has funnel 22, the top fixed mounting of funnel 22 has breather pipe 23, with outside atmospheric pressure looks UNICOM, guarantees the normal work of transformer.
The working principle is as follows: the pressure relief valve shell 1 is sealed with the outside. When the internal part of the transformer produces pressure due to release of gas or other reasons in the working process, pressure can push the pushing hands 9 to start to move inwards, the pressure in the valve body is increased, the bottom position of the control pipeline 18 is fixedly provided with the controller 19, the keys 21 on the controller 19 are operated, the pressure of the pressure relief valve is quickly set through the keys, the valve is opened when the internal pressure reaches the set pressure, the bottom position of the pushing hands 9 is fixedly connected with the fixing plate 10, the bottom position of the fixing plate 10 is fixedly connected with the spring 8, the bottom position of the spring 8 is fixedly connected with the baffle 7, the bottom position of the baffle 7 is fixedly provided with the piston 6, when the piston 6 moves to the limit position, the valve body is communicated with the outside, and the pressure in the valve body is released. When the pressure is released, the piston 6 returns to the initial position under the action of the spring 8, due to the pressure reduction of the valve body. When the pressure in the transformer is instantly and rapidly increased, the cooling oil in the transformer is sprayed out from the pressure relief opening 14, and when the cooling oil in the transformer is reduced, the oil inlet knob 2 is unscrewed and can be added through the oil inlet 3, so that the cooling oil in the device is sufficient.
In the utility model, as shown in the figure 1-4, 1-a pressure relief valve shell, 2-an oil inlet knob, 3-an oil inlet, 4-a first sealing ring, 5-a second sealing ring, 6-a piston, 7-a baffle, 8-a spring, 9-a pushing handle, 10-a fixing plate, 11-a buckle, 12-a fixing spring, 13-a baffle, 14-a pressure relief opening, 15-a pipeline, 16-a control valve, 17-a condenser pipe, 18-a control pipeline, 19-a controller, 20-a display screen, 21-a key, 22-a funnel and 23-a vent pipe. The pressure relief valve solves the problems that the pressure in the existing pressure relief valve for the oil-immersed transformer can be rapidly and intelligently set to enable the pressure in the transformer to reach a proper value, so that the pressure in the transformer is balanced with the external pressure, the pressure relief valve can ensure that an oil way is leaked by the pressure relief valve when cooling oil expands due to temperature rise, and only part of the oil way is leaked in a pressure range for ensuring the safe work of the transformer, so that the loss of the cooling oil is saved.
While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a relief valve for oil-immersed transformer which characterized in that: including pressure release valve casing (1), bottom position left side fixedly connected with oil inlet (3) of pressure release valve casing (1), top position fixedly connected with oil feed knob (2) of oil inlet (3), intermediate position fixedly connected with buckle (11) of pressure release valve casing (1), bottom position right side fixedly connected with pressure release mouth (14) of pressure release valve casing (1).
2. A pressure relief valve for an oil filled transformer according to claim 1, characterized by: the pressure relief valve is characterized in that a pushing handle (9) is fixedly connected to the top of the pressure relief valve shell (1), a fixing plate (10) is fixedly connected to the bottom of the pushing handle (9), a spring (8) is fixedly connected to the bottom of the fixing plate (10), and a baffle (7) is fixedly connected to the bottom of the spring (8).
3. A pressure relief valve for an oil filled transformer according to claim 2, characterized by: the bottom position fixed mounting of baffle (7) has piston (6), the outer wall intermediate position fixed mounting of piston (6) has second sealing washer (5).
4. A pressure relief valve for an oil filled transformer according to claim 3, characterized by: the bottom position fixed mounting of piston (6) has first sealing washer (4), the left side fixedly connected with fixed spring (12) of first sealing washer (4), the right side fixedly connected with separation blade (13) of first sealing washer (4).
5. A pressure relief valve for an oil filled transformer according to claim 1, characterized by: the pressure relief port (14) outside position fixedly connected with pipeline (15), the terminal position fixed mounting of pipeline (15) has control valve (16), the bottom position fixed mounting of control valve (16) has control pipeline (18), the bottom position fixed mounting of control pipeline (18) has controller (19).
6. A pressure relief valve for an oil filled transformer according to claim 5, characterized by: the top position fixed mounting of controller (19) has display screen (20), the bottom position fixed mounting of display screen (20) has button (21).
7. A pressure relief valve for an oil filled transformer according to claim 5, characterized by: the top fixed position of control valve (16) installs condenser pipe (17), the top fixed position of condenser pipe (17) installs funnel (22), the top fixed position of funnel (22) installs breather pipe (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120125860.3U CN215522119U (en) | 2021-01-18 | 2021-01-18 | Pressure release valve for oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120125860.3U CN215522119U (en) | 2021-01-18 | 2021-01-18 | Pressure release valve for oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215522119U true CN215522119U (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120125860.3U Active CN215522119U (en) | 2021-01-18 | 2021-01-18 | Pressure release valve for oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215522119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120356764A (en) * | 2025-04-23 | 2025-07-22 | 国网冀北电力有限公司超高压分公司 | High-safety station explosion-proof transformer and use method thereof |
-
2021
- 2021-01-18 CN CN202120125860.3U patent/CN215522119U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120356764A (en) * | 2025-04-23 | 2025-07-22 | 国网冀北电力有限公司超高压分公司 | High-safety station explosion-proof transformer and use method thereof |
| CN120356764B (en) * | 2025-04-23 | 2025-09-19 | 国网冀北电力有限公司超高压分公司 | A high-safety explosion-proof transformer for station use and its use method |
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