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Iodine vapor sampling apparatus under high temperature and high humidity environment

A high-temperature, high-humidity, sampling device technology, applied in the direction of sampling devices, etc., can solve problems that affect the accuracy of measurement results and panic of experimenters, and achieve the effects of low manufacturing cost, improved accuracy, and simple operation

Inactive Publication Date: 2013-08-21
三亚哈尔滨工程大学南海创新发展基地
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The existence of the suck-back phenomenon will cause the absorption liquids in different absorption bottles to mix with each other, which will directly affect the accuracy of the measurement results and cause panic among the experimenters.

Method used

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  • Iodine vapor sampling apparatus under high temperature and high humidity environment
  • Iodine vapor sampling apparatus under high temperature and high humidity environment
  • Iodine vapor sampling apparatus under high temperature and high humidity environment

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Embodiment Construction

[0038] The present invention will be further described below with reference to accompanying drawing

[0039] figure 1 It is the overall structure diagram of the iodine vapor sampling system. 1 and 3 in the figure are the stop valve and the pressure reducing valve, which are used to control the start and stop of the system and adjust the pressure of the high-pressure sampling gas respectively. The three-way valve 4.2 is located at the front end of the three-way valve 4.1 in the circuit. The three-way valve 4.1 has three ports a, b and c, and port a and port b or port b and port c can be in a communication state by rotating the disc. The three-way valve 4.2 has three ports d, e and f, and port d and port e or port e and port f can be in a communication state by rotating the disc. Before sampling, control the three-way valve 4.1 to complete the flushing of the sampling pipeline, and control the three-way valve 4.2 to prevent the phenomenon of sucking back when the sampling is f...

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Abstract

The present invention provides an iodine vapor sampling apparatus under a high temperature and high humidity environment. The apparatus comprises a pipeline sampling system, a gas washing system, a condensation system and a bypass system, wherein the pipeline sampling system comprises a break valve, a pressure reduction valve and a connection pipeline, the gas washing system comprises multiple stage absorption bottles and a KI absorption solution filled in the absorption bottle, the condensation system comprises a condensation water tank connected with the final stage absorption bottle, a drying agent box positioned on the rear of the condensation water tank, and a first flow meter connected on the rear of the drying agent box, and the bypass system comprises a first three-way valve, a second three-way valve, a second flow meter, a bypass absorption bottle and an absorption liquid in the bypass absorption bottle. The apparatus has characteristics of simple structure and easy operation, and can be particularly used for measurement of other substances having a suitable absorption liquid under a high temperature and high humidity environment.

Description

technical field [0001] The invention relates to an iodine vapor sampling and measuring device, which is especially used in an environment where high-temperature water vapor exists, in particular an iodine vapor sampling and measuring device that can be used to measure the iodine removal efficiency of a containment filter discharge system. Background technique [0002] A large amount of volatile fission products are produced during the operation of nuclear power plants. In the event of a severe accident, the integrity of the containment vessel is compromised, and fission gases will be released into the atmosphere, causing radioactive hazards to the environment. It can be seen that ensuring the integrity of the containment is the key to realizing nuclear safety, and the development of the containment filter and discharge system is particularly important. It can remove radioactive substances in the gas in the containment vessel, and depressurize the containment vessel through ...

Claims

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Application Information

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IPC IPC(8): G01N1/22
Inventor 谷海峰孙中宁张娜娜王军龙周艳民阎昌琪孙立成
Owner 三亚哈尔滨工程大学南海创新发展基地
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