Telescopic deep-water sampling system applied to nuclear power plant

Abstract

An embodiment of the present invention provides a telescopic deep-water sampling system applied to a nuclear power plant. The system includes a deep-water sampler. The deep-water sampler includes a sampling bar in a multi-section telescopic structure and a sample distributing head having a barrel structure. The sample distributing head is used for acquiring a liquid sample from deep water, and allowing the liquid sample to flow from the inner cavity of the distributing head into a sampling vessel. The bottom cover of the sample distributing head is provided with a sampling vessel connection port used for connecting the sampling vessel, and the top cover of the sample distribution head is connected to one end of the sampling bar. The deep-water sampler which is adjustable in length and hasa telescopic structure is more scientific and reasonable than present sampling manners, thus reducing the operation difficulty and achieving the objective of optimizing a sampling process.

Description

technical field [0001] The invention relates to the technical field of nuclear power technology, in particular to a telescopic deep-water sampling system applied to nuclear power plants. Background technique [0002] During the overhaul stage of nuclear power plant units, the radioactive analysis of conventional island liquid waste collection system (SEK, Conventional Island Liquid Waste Collection) before discharge is a relatively heavy work, especially in the sampling process. The depth of the SEK pit is about 5 meters, and it belongs to a deep pool. The pool contains radioactive substances and there are many safety risks. When leaving the deep pool, it is necessary to conduct a layer-by-layer investigation. If the body is contaminated with radioactive substances, it will be extended. The investigation time increases the risk of sampling. [0003] At present, the method of hanging buckets with ropes is often used for sampling. However, due to the unscientific sampling met...

AI Technical Summary

Problems solved by technology

[0003] At present, the method of hanging buckets with ropes is often used for sampling. However, due to the unscientific sampling method, the sampling personnel often have irregular sampling behaviors, and the sampling personnel may be stained with radioactive substances. Injury poses risk and also prolongs sampling time, increasing sampling risk

At the same time, the sampling operation will be too cumbersome, and the difficulty will increase accordingly, which greatly prolongs the sampling time.

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