Radioactive gas sampling device and system

Abstract

The invention discloses a radioactive gas sampling device and system. The radioactive gas sampling device comprises: a connecting device including a first connecting device and a second connecting device; a purification system including a first electric control valve and a purification device, wherein one end of the first electric control valve is connected with the first connecting device through a sampling pipeline, and the other end of the first electric control valve is connected with the purification device through a second connecting device; a sampling mechanism, wherein one end of the sampling mechanism is connected with the sampling pipeline, and the other end of the sampling mechanism is connected with the purifying device through a second connecting device; and a control device which is connected with the first electric adjusting valve and is suitable for controlling the first electric adjusting valve. The connecting device is connected with the purification system and the sampling mechanism, so that diffusion of helium pollution in the pipeline to a working place is greatly reduced when radioactive gas is sampled, and the pollution risk of equipment and the site is reduced.

Description

technical field [0001] The invention relates to the technical field of radioactive gas detection, in particular to a radioactive gas sampling device and a sampling system. Background technique [0002] In the field of nuclear power, the high-temperature gas-cooled reactor is the fourth-generation nuclear power reactor technology, and the HTR-PM fuel loading and unloading system is a part of the high-temperature gas-cooled reactor. After the ball flow pipeline in the HTR-PM fuel handling system runs for a period of time, the graphite dust of the fuel balls may be deposited on the inner wall of the pipeline. After the pipeline is disassembled, helium gas containing radioactive impurities will leak into the working environment and may cause air pollution. In view of the extremely harsh sampling conditions on site, it is necessary to consider both external radiation protection and air pollution internal radiation protection. The existing sampling Most of the devices use the dev...

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Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention lies in the defect in the prior art that the fuel loading and unloading system cannot be quickly sampled due to the lack of equipment for sampling the exhaust system.

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