CN213809474U - Sealing device for main steam safety valve of high-temperature gas cooled reactor - Google Patents
Sealing device for main steam safety valve of high-temperature gas cooled reactor Download PDFInfo
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- CN213809474U CN213809474U CN202022906512.8U CN202022906512U CN213809474U CN 213809474 U CN213809474 U CN 213809474U CN 202022906512 U CN202022906512 U CN 202022906512U CN 213809474 U CN213809474 U CN 213809474U
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- flange plate
- main steam
- safety valve
- steam safety
- sealing device
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Abstract
A sealing device for a main steam safety valve of a high-temperature gas cooled reactor comprises a first flange plate, bolts are respectively arranged on two sides of the first flange plate, nuts are arranged on the bolts, and a second flange plate is in threaded connection with an inlet of the main steam safety valve through threads and is connected with the first flange plate through the bolts as a reference surface; a sealing ring is arranged between the upper part of the middle of the first flange plate and the valve body of the main steam safety valve; a through hole is formed in the center of the first flange plate; the valve has the characteristics of no damage and tight sealing.
Description
Technical Field
The utility model relates to a sealing device, in particular to high temperature gas cooled piles main steam relief valve sealing device.
Background
With the continuous and rapid development of national economy, very urgent requirements are put forward to the energy industry of China. The construction of nuclear power is being developed from the direction of testability and compensatory adjustment to the direction of strategic and aggressive adjustment, and a nuclear power valve is used as a large-volume and wide-range hydraulic device in a nuclear power station, is connected with more than 300 systems of the whole nuclear power station, and is a key accessory for the safe operation of the nuclear power station. The nuclear power valve has complex, special and severe use working conditions, and has strong rigidness of radioactivity of transmission media, temperature and pressure grade, so the nuclear power valve has higher requirement.
However, as the service life of the existing nuclear power valve is increased, the internal structure of the existing nuclear power valve may be corroded by a conveying medium, so that the sealing performance of the valve is reduced, and leakage occurs.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art, the utility model aims to provide a high temperature gas cooled piles main steam relief valve sealing device through compressing tightly the ring flange with the bolt, has the not damage valve, characteristics that seal is tight.
In order to realize the purpose, the utility model discloses the technical scheme who takes is:
a high temperature gas cooled reactor main steam safety valve sealing device comprises a first flange plate 5, wherein bolts 2 are respectively arranged on two sides of the first flange plate 5, nuts 1 are arranged on the bolts 2, a second flange plate 6 is in threaded connection with an inlet of a main steam safety valve through threads and is connected with the first flange plate 5 through the bolts 2 as a reference surface; and a sealing ring 4 is arranged between the upper middle part of the first flange 5 and the main steam safety valve body 3.
The center of the first flange plate 5 is provided with a through hole.
The utility model has the advantages that:
a sealing device for a main steam safety valve of a high-temperature gas cooled reactor can realize a valve sealing test before the main steam safety valve is installed, and has the characteristics of no damage to the valve and tight sealing.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the sealing device for the main steam safety valve of the high-temperature gas cooled reactor comprises a first flange plate 5, bolts 2 are respectively arranged on two sides of the first flange plate 5, nuts 1 are arranged on the bolts 2, and a second flange plate 6 is in threaded connection with an inlet of the main steam safety valve through threads and is connected with the first flange plate 5 through the bolts 2 as a reference surface; and a sealing ring 4 is arranged between the upper middle part of the first flange 5 and the main steam safety valve body 3.
The center of the first flange plate 5 is provided with a through hole.
The utility model discloses a theory of operation is:
the second flange plate 6 which is matched with the existing inlet thread of the main steam safety valve and has enough pressure strength is provided with the first flange plate 5 which also has enough strength, the valve body 3 of the main steam safety valve is connected with the first flange plate 5 through the sealing ring 4, and the first flange plate 5 and the second flange plate 6 are fixed by the nut 1 and the bolt 2, so that the sealing of the valve is ensured.
The through hole arranged in the middle of the first flange plate 5 can be connected with a pipeline, and high-pressure gas can be introduced into the through hole to enhance the sealing property.
Claims (2)
1. A sealing device for a main steam safety valve of a high-temperature gas cooled reactor is characterized by comprising a first flange plate (5), bolts (2) are respectively arranged on two sides of the first flange plate (5), nuts (1) are arranged on the bolts (2), and a second flange plate (6) is in threaded connection with an inlet of the main steam safety valve through threads and is connected with the first flange plate (5) through the bolts (2) as a reference surface; a sealing ring (4) is arranged between the upper part of the middle of the first flange plate (5) and the main steam safety valve body (3).
2. The high temperature gas cooled reactor main steam safety valve sealing device according to claim 1, characterized in that the first flange (5) is centrally provided with a through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022906512.8U CN213809474U (en) | 2020-12-07 | 2020-12-07 | Sealing device for main steam safety valve of high-temperature gas cooled reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022906512.8U CN213809474U (en) | 2020-12-07 | 2020-12-07 | Sealing device for main steam safety valve of high-temperature gas cooled reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213809474U true CN213809474U (en) | 2021-07-27 |
Family
ID=76944190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022906512.8U Active CN213809474U (en) | 2020-12-07 | 2020-12-07 | Sealing device for main steam safety valve of high-temperature gas cooled reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213809474U (en) |
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2020
- 2020-12-07 CN CN202022906512.8U patent/CN213809474U/en active Active
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