Rupture disk protection device with alarming function

Abstract

The invention belongs to the technical field of pressure relief protection of nuclear reactor steam generators, in particular to a rupture disk protection device with an alarming function. The rupturedisk protection device comprises a connection pipe, the connection pipe is arranged in a cavity formed by hermetically connecting a top cover and an outer shell, and a connection pipe inlet in the bottom of the connection pipe is connected to a base at the bottom of the outer shell and serves as a discharging passage of the steam generator during sodium-water reaction; the top of the connection pipe is sealed by a replaceable rupture disk, and any one or more of a high-speed response thermocouple, a sodium leakage detector, a high-temperature conductor terminal and an ultra-high-temperature pressure transmitter which are connected with an external alarming system are arranged at the top of the top cover; a pressure relief outlet is formed in the outer shell, the rupture disk explodes whenthe pressure of internal gas reaches a set value, and the alarming system generates alarming signals according to any one or more signals sent out by the high-speed response thermocouple, the sodiumleakage detector, the high-temperature conductor terminal and the ultra-high-temperature pressure transmitter; the cavity is filled with argon. The rupture disk protection device can conduct pressurerelief at top speed, and is low in maintenance cost and easy to repair 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 with an alarm function. 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 no...

AI Technical Summary

Problems solved by technology

This situation is likely to lead to insufficient emergency response due to delayed response, and there is a potential risk of accident expansion

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