Damping device of spent fuel pool liquid level and temperature monitoring device

Abstract

The invention discloses a damping device of a spent fuel pool liquid level and temperature monitoring device. The damping device of the spent fuel pool liquid level and temperature monitoring device comprises a mounting pipe used for enabling the spent fuel pool liquid level and temperature monitoring device to be mounted and further comprises an outer tube arranged on the outer side of the mounting tube in a sleeve mode and a damping device body arranged between the mounting tube and the outer tube. According to the technical scheme and the damping device of the spent fuel pool liquid level and temperature monitoring device, the outer tube is arranged on the outer side of the mounting tube provided with the spent fuel pool liquid level and temperature monitoring device in the sleeved mode, the damping device body is arranged between the mounting tube and the outer tube, therefore, when earthquakes occur or a spent fuel pool encounters large impact force, the force received by the outer tube will be transmitted to the damping device body, the damping device body absorbs the force transmitted by the outer tube, the vibration directly acting on the spent fuel pool liquid level and temperature monitoring device is reduced, a certain protection effect is performed on the spent fuel pool liquid level and temperature monitoring device, and thus the earthquake resistant performance of the spent fuel pool liquid level and temperature monitoring device is improved to a certain extent.

Description

technical field [0001] The invention relates to the field of nuclear power, in particular to a damping device for a liquid level and temperature monitoring device in a spent pool. Background technique [0002] Spent fuel pool of nuclear power plant, referred to as spent pool, is a pool used to store spent fuel used in reactors. Spent fuel is unloaded burnup whose burnup depth has reached the design requirements, that is, it is unloaded from the reactor and is no longer used in the reactor. of nuclear fuel. Spent fuel contains unfissile and newly formed fissile nuclides, unused fissionable nuclear elements, many fission products and transuranic elements, which will cause serious safety problems if leaked. The spent pool is mainly used to effectively cool the spent fuel and protect it from radioactive radiation. [0003] A liquid level and temperature monitoring device is installed in the spent pool, which can monitor the liquid level and temperature in the spent pool in rea...

AI Technical Summary

Problems solved by technology

Because the depth of the exhaust pool is large, the length of the installation pipe of the monitoring device is also long. When the exhaust pool is subjected to a certain intensity of earthquake or impact force, the monitoring device will easily lose the measurement function and cannot feed back the liquid level and temperature information in the exhaust tank in real time. , when there is a potential safety hazard in the exhaust pool, the staff cannot find it in time, causing serious safety problems

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