CN211699888U - Transformer and pressure release assembly thereof - Google Patents
Transformer and pressure release assembly thereof Download PDFInfo
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- CN211699888U CN211699888U CN201921894953.1U CN201921894953U CN211699888U CN 211699888 U CN211699888 U CN 211699888U CN 201921894953 U CN201921894953 U CN 201921894953U CN 211699888 U CN211699888 U CN 211699888U
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Abstract
The utility model discloses a pressure release assembly, which comprises a lifting seat, wherein the lifting seat is communicated with a transformer body; discharging oil and leading down the pipe; the pressure release valve is used for switching on and switching off the lifting seat and the oil discharge down pipe; the two ends of the connecting pipe are respectively connected with the lifting seat and the oil discharge down pipe; the explosion-proof cover plate is arranged on the connecting pipe and used for switching on or switching off the connecting pipe, and the action pressure of the explosion-proof cover plate is greater than that of the pressure release valve. Under normal conditions, the pressure inside the transformer body is discharged through the pressure relief valve. When the pressure relief valve breaks down, when the pressure in the transformer body rises to the action pressure value of the explosion-proof cover plate, the explosion-proof cover plate is opened, so that the rising seat is communicated with the oil discharge down-leading pipe, and the pressure in the transformer body is released. The utility model also discloses a transformer.
Description
Technical Field
The utility model relates to a pressure release field of transformer, more specifically say, relate to a transformer and pressure release subassembly thereof.
Background
The transformer comprises a transformer body and a pressure release assembly. The pressure relief assembly includes a riser seat, a pressure relief valve, and an oil drain down tube. The pressure relief valve is used for switching on and off the lifting seat and the oil drainage down pipe. When a fault occurs inside the transformer body, a large amount of gas is generated inside the transformer body, so that the internal pressure of the transformer body is increased sharply. When the pressure in the transformer body reaches the action pressure of the pressure release valve, the pressure release valve is opened, so that the lifting seat and the oil discharge down guide pipe are communicated, the pressure in the transformer body is released, and the safety of the transformer is ensured.
However, if the pressure relief valve fails, the pressure inside the transformer body cannot be released, which may cause the transformer to explode and even cause danger to the entire power station.
Therefore, how to release the pressure inside the transformer body when the pressure relief valve fails so as to ensure the safety of the transformer is a critical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pressure release subassembly, this pressure release subassembly can release the inside pressure of transformer body when the pressure release valve breaks down to ensure the safety of transformer.
A pressure relief assembly comprising
The lifting seat is communicated with the transformer body;
discharging oil and leading down the pipe;
a pressure release valve for opening and closing the elevation seat and the oil drain down pipe;
the two ends of the connecting pipe are respectively connected with the lifting seat and the oil discharge down pipe;
the explosion-proof cover plate is arranged on the connecting pipe and used for conducting or stopping the connecting pipe, and the action pressure of the explosion-proof cover plate is greater than that of the pressure release valve.
Preferably, the explosion-proof cover plate is a mechanical explosion-proof cover plate.
Preferably, the connecting pipe is a linear pipe and is located in a frame surrounded by the lifting seat, the oil discharge down pipe and the pressure release valve.
Preferably, both ends of the connecting pipe are respectively welded to the lifting seat and the oil drainage down pipe.
Preferably, two opposite flanges are arranged on the connecting pipe, and the explosion-proof cover plate is connected to the two flanges.
The utility model also discloses a transformer, including the pressure release subassembly, the pressure release subassembly is above-mentioned arbitrary pressure release subassembly.
According to the technical scheme, the pressure release assembly comprises a lifting seat, an oil discharge down-leading pipe, a pressure release valve, a connecting pipe and an explosion-proof cover plate. Under normal conditions, the pressure inside the transformer body is discharged through the pressure relief valve. When the pressure relief valve breaks down, when the pressure in the transformer body rises to the action pressure value of the explosion-proof cover plate, the explosion-proof cover plate is opened, so that the rising seat is communicated with the oil discharge down-leading pipe, and the pressure in the transformer body is released. The utility model provides a pressure release subassembly can release the inside pressure of transformer body when the pressure release valve breaks down to ensure the safety of transformer.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without inventive efforts.
Fig. 1 is a schematic structural diagram of a pressure release assembly according to an embodiment of the present invention.
Wherein, 1 is a lifting seat, 2 is an oil discharge down pipe, 3 is a pressure release valve, 4 is a connecting pipe, and 5 is an explosion-proof cover plate.
Detailed Description
The utility model discloses a pressure release subassembly, this pressure release subassembly can release the inside pressure of transformer body when the pressure release valve breaks down to ensure the safety of transformer.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In a specific embodiment of the present invention, the pressure release assembly includes: the oil drain device comprises a lifting seat 1, an oil drain down pipe 2, a pressure release valve 3, a connecting pipe 4 and an explosion-proof cover plate 5.
The lifting seat 1 is communicated with the transformer body. The pressure relief valve 3 is used to open and close the lifting seat 1 and the oil drain down pipe 2. The two ends of the connecting pipe 4 are respectively connected to the lifting seat 1 and the oil discharge down pipe 2. An explosion-proof cover plate 5 is connected in the connecting pipe 4. I.e. the explosion-proof cover plate 5 is arranged in parallel with the pressure relief valve 3. The explosion-proof cover plate 5 is used for switching on and off the connecting pipe 4. And the operating pressure of the explosion-proof cover 5 is greater than the operating pressure of the pressure relief valve 3, the specific value of the operating pressure of the explosion-proof cover 5 is determined according to the specific operating pressure of the pressure relief valve 3.
Since the operating pressure of the explosion-proof cover 5 is greater than that of the pressure relief valve 3, the pressure inside the transformer body is normally discharged through the pressure relief valve 3. When the pressure relief valve 3 breaks down, when the pressure in the transformer body rises to the action pressure value of the explosion-proof cover plate 5, the explosion-proof cover plate 5 is opened, so that the lifting seat 1 is communicated with the oil discharge down leading pipe 2, and the pressure in the transformer body is released. The utility model provides a pressure release subassembly can release the inside pressure of transformer body when pressure release valve 3 breaks down to ensure the safety of transformer.
Further, the explosion-proof cover plate 5 is preferably a mechanical explosion-proof cover plate 5. The mechanical explosion-proof cover plate 5 has low failure rate and more stable performance.
Further, the connecting tube 4 is designed to be linear. The connecting pipe 4 is positioned in a frame enclosed by the lifting seat 1, the oil discharge down pipe 2 and the pressure relief valve 3. By adopting the design, the length of the connecting pipe 4 can be shortened as much as possible, and the structure of the whole pressure release assembly is prevented from being too complex.
Further, both ends of the connection pipe 4 are welded to the elevating base 1 and the oil drain down pipe 2, respectively. The welding processing mode can ensure the firmness of the connection of the connecting pipe 4 with the lifting seat 1 and the oil discharge down pipe 2.
Further, an explosion-proof cover plate 5 is connected in the connecting pipe 4 through a flange. Specifically, two opposite flanges are provided on the connecting pipe 4, and the explosion-proof cover plate 5 is placed between the two flanges and then fixed by bolts.
The utility model also discloses a transformer, this transformer includes the pressure release subassembly. The pressure relief assembly is any of the pressure relief assemblies described above. The pressure release assembly has the advantages, and the transformer with the pressure release assembly also has the advantages, so the details are not repeated.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A pressure relief assembly, comprising
The lifting seat (1), the lifting seat (1) is communicated with the transformer body;
an oil discharge down pipe (2);
a pressure relief valve (3), said pressure relief valve (3) being adapted to open and close said lifting seat (1) and said oil drain down pipe (2);
the two ends of the connecting pipe (4) are respectively connected with the lifting seat (1) and the oil discharge down pipe (2);
the anti-explosion cover plate (5) is arranged on the connecting pipe (4) and used for conducting or stopping the connecting pipe (4), and the action pressure of the anti-explosion cover plate (5) is larger than that of the pressure release valve (3).
2. Pressure relief assembly according to claim 1, characterized in that the explosion-proof cover plate (5) is a mechanical explosion-proof cover plate (5).
3. Pressure relief assembly according to claim 1, characterized in that the connection pipe (4) is a straight pipe, the connection pipe (4) being located in a frame enclosed by the riser (1), the oil drain down pipe (2) and the pressure relief valve (3).
4. Pressure relief assembly according to claim 1, characterized in that the connecting tube (4) is welded at both ends to the riser (1) and to the oil drain down tube (2), respectively.
5. Pressure relief assembly according to claim 1, characterized in that the connecting tube (4) is provided with two opposite flanges, to which the burst disk (5) is connected.
6. A transformer comprising a pressure relief assembly, wherein the pressure relief assembly is as claimed in any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921894953.1U CN211699888U (en) | 2019-11-05 | 2019-11-05 | Transformer and pressure release assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921894953.1U CN211699888U (en) | 2019-11-05 | 2019-11-05 | Transformer and pressure release assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211699888U true CN211699888U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921894953.1U Active CN211699888U (en) | 2019-11-05 | 2019-11-05 | Transformer and pressure release assembly thereof |
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| Country | Link |
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| CN (1) | CN211699888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611484A (en) * | 2021-07-23 | 2021-11-05 | 保定天威保变电气股份有限公司 | Lifting seat explosion-proof device of flexible direct current converter transformer and use method |
-
2019
- 2019-11-05 CN CN201921894953.1U patent/CN211699888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611484A (en) * | 2021-07-23 | 2021-11-05 | 保定天威保变电气股份有限公司 | Lifting seat explosion-proof device of flexible direct current converter transformer and use method |
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