Rupture disk protection device

A protection device and bursting disc technology, applied in the direction of emergency protection devices, valve devices, functional valve types, etc., can solve problems such as differences in technical solutions and technical requirements, and achieve easy maintenance and replacement, prevention of accident expansion, processing and maintenance The effect of low cost

Pending Publication Date: 2019-04-26
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, all countries adopt the same control technology for this accident condition, that is, install a bursting disc device to realize overpressure relief when sodium-water reaction occurs, but there are differences in specific technical solutions and technical requirements

Method used

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] A bursting disc protection device provided by the present invention is used for pressure relief protection of a steam generator in a sodium-cooled fast reactor, and includes a shell 4, a top cover 8, a connecting pipe 16, a bursting disc 17 and other components.

[0022] like figure 1 , figure 2 As shown, the top cover 8 is cylindrical, the top is sealed, and the bottom is provided with a first upper flange 7; the top of the shell 4 is provided with a first lower flange 5, and the bottom is provided with a base 1 . The top cover 8 and the casing 4 are sealed and connected through the first upper flange 7 and the first lower flange 5 to form a cavity.

[0023] The connecting pipe 16 is vertically arranged inside the cavity formed by the sealing connection between the top cover 8 and the casing 4; the connecting pipe inlet 21 at the bottom end o...

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Abstract

The invention belongs to the technical field of nuclear reactor vapor generator pressure relief protection, and particularly relates to a rupture disk protection device. The rupture disk protection device is used for pressure relief protection when sodium-water reaction occurs in a vapor generator in a sodium-cooled fast reactor. The rupture disk protection device comprises a connection pipe whichis arranged in a cavity formed by connecting a top cover with a shell in a sealing mode; a connection pipe inlet formed in the bottom end of the connection pipe is connected to a base at the bottom end of the shell and used for communicating with the vapor generator and serves as a relief channel for pressure of gas in the vapor generator during sodium-water reaction; the top end of the connection pipe is sealed through a changeable rupture disk; the shell is further provided with a pressure relief outlet for communicating pressure relief equipment, the rupture disk can rupture when the pressure of inner gas reaches the set value, and thus, the gas enters the cavity through the connection pipe and then enters the pressure relief equipment through the pressure relief outlet. The rupture disk protection device can conduct fast pressure relief, prevent accidents from spreading, and is low in maintaining cost and easy to maintain and replace.

Description

technical field [0001] The invention belongs to the technical field of pressure relief protection for nuclear reactor steam generators, and in particular relates to a bursting disc protection device. Background technique [0002] The steam generator is the key equipment of the main heat transfer system of the sodium-cooled fast reactor. During the operation of the sodium-cooled fast reactor, the steam generator operates under the harsh conditions of high temperature, high pressure, high-velocity liquid scour and sodium environment for a long time, and leakage accidents of the water-steam pipeline may occur. Once leakage occurs, water and sodium will react violently with sodium water, releasing a large amount of heat, causing the temperature and pressure near the sodium water reaction area to rise sharply, resulting in the expansion and spread of leakage, not only causing damage to the steam generator, but also in serious cases. It will threaten the normal operation of the s...

Claims

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Application Information

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IPC IPC(8): F16K17/16F16K27/12F16L23/02F16L23/18G21C9/008
CPCG21C9/008F16K17/1606F16K27/12F16L23/02F16L23/18Y02E30/30
Inventor 侯斌余华金吕明宇裴志勇杜丽岩朱丽娜肖常志
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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