Sample replacing device for air tritiated water sampling device

Abstract

The invention discloses a sample replacing device for an air tritiated water sampling device. The device includes a base box used for placing sample bottles, the base box is provided with at least two sample bottles, the heights of bottle mouths of the sample bottles are same, the bottle cover of each sample bottle is connected with a horizontal pressure cover plate, each horizontal pressure cover plate is connected with a lifting device used for driving the horizontal pressure cover plate to move up and down, and when the horizontal pressure cover plates move downward, and the bottle covers move to the bottle mouths of the sample bottles from top to bottom until the bottle covers press the bottle mouths of the sample bottles tightly; air channels between each two sample bottles are in series connection through a plurality of connecting pipes, one end of each air channel formed after series connection is connected with an intake pipe, and the other end of each air channel is connected with an air outlet pipe. According to the sample replacing device, the problems that a sample is difficult to be replaced, the sealing property of a cavity of the sample bottle is poor and the operation is complicated are solved.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation protection, in particular to a sample changing device for an atmospheric tritiated water sampler. Background technique [0002] Tritium is an important radioactive gas nuclide emitted by the fission power operation reactor. The tritium leaked into the surrounding environment by various nuclear facilities will lead to an increase in the tritium activity of the surrounding atmosphere, and the staff working in the reactor building and related auxiliary buildings of the nuclear power plant will Tritium is ingested through various routes, resulting in a certain degree of internal exposure. Therefore, it is necessary to sample and detect tritium in the surrounding environment. [0003] Atmospheric tritiated water sampling methods usually include: bubbling method, condensation method, desiccant adsorption method and freezing method. In the desiccant adsorption method, the traditional sample c...

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Problems solved by technology

[0004] Aiming at the problems in the prior art, the object of the present invention is to provide a sample changing device for an atmospheric tritiated water sampler, so as to solve the trouble of sample replacement and the poor airtightness of the cavity of the sample bottle in the prior art. Good and cumbersome to operate

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