High-temperature gas cooled reactor end face sealing suction gun device

Abstract

The invention belongs to the technical field of nuclear power maintenance, and particularly relates to a high-temperature gas cooled reactor end face sealing suction gun device. According to the embodiment of the invention, the position of at least one suction gun assembly is adjusted through a rotating assembly and a lifting assembly, so that the suction gun opening structure of the suction gun assembly can be flexibly aligned with the end surface of a throttling assembly, so that helium leakage detection operation is realized. Due to the mode that the suction gun opening structure is directly in butt joint with the end face of the throttling assembly, the air leakage influence caused by a gap between the throttling assembly and an anti-loosening clamping ring is avoided, therefore, the throttling assembly, an anti-loosening plate, the anti-loosening clamping ring and a fixing nut do not need to be disassembled during helium leakage detection, the time consumed by personnel at the manhole of the evaporator is greatly shortened, and the irradiation dose of the personnel is reduced.

Description

technical field [0001] The invention belongs to the technical field of nuclear power maintenance, and in particular relates to a high-temperature gas-cooled reactor end face sealing suction gun device. Background technique [0002] The high-temperature gas-cooled reactor is an advanced unit independently developed by my country using a new generation of nuclear power technology. The inspection technology and inspection equipment of the steam generator heat transfer tube are the direction that needs to be vigorously developed in the future, because its steam generator is completely different from the conventional pressurized water reactor. , their operating environments and structures, especially the tube-sheet structure, are different, and there is currently no corresponding testing technology and special testing equipment. The structural form of the heat transfer tube of the steam generator of the high temperature gas-cooled reactor is also different from that of the convent...

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Problems solved by technology

[0002] The high-temperature gas-cooled reactor is an advanced unit independently developed by my country using a new generation of nuclear power technology. The inspection technology and inspection equipment of the steam generator heat transfer tube are the direction that needs to be vigorously developed in the future, because its steam generator is completely different from the conventional pressurized water reactor. , the operating environment, structure, especially the tube-sheet structure are all different, and there is currently no corresponding testing technology and special testing equipment

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