Halogen generator

A generator and halogen technology, applied in nuclear power generation, nuclear reactor monitoring, reactors, etc., can solve the problems of difficult after-sales service, high price, long order cycle, etc., and achieve the effect of easy control of occurrence conditions, wide range and stable occurrence rate

Active Publication Date: 2014-07-02
CHINA INST FOR RADIATION PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of the third-generation nuclear power in China, the Freon leak detection method is more and more widely used in the performance test of the air purification system of nuclear power plants. However, the Freon generators used in this test have been monopolized by foreign companies for a long time. Long cycle and difficult after-sales service

Method used

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Experimental program
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Embodiment

[0020] Such as figure 1 As shown, the pressure-bearing storage tank 6 of the halogen generator in this embodiment is a stainless steel cylinder, which can store 1.8L of Freon liquid reagent. The pressure inside the pressure storage tank is controlled by a preset pressure regulating valve, the pressure requirement is 0.4-1.0MPa, and the preset pressure is 0.4MPa, that is, the pressure inside the pressure storage tank is generally controlled at about 0.4MPa. A cuboid aluminum / tin heater 14 is arranged on the freon gasification outlet pipeline of the generator, and two preset temperature switches ( figure 2 20, 21) to maintain a constant heater temperature, constant temperature 85 ℃

[0021] The compressed air is divided into two streams after passing through the compressed air conversion joint, preset pressure reducing valve 1 and check valve 2 (see attached figure 1 ), one way enters the pressurized liquid storage tank 6 through the three-way switch valve 3, and the pressure...

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PUM

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Abstract

The invention relates to leakage testing equipment in the nuclear field, and in particular relates to a halogen generator for inspecting leakage rate of iodine adsorber machinery in a ventilation and purification system of a nuclear facility. The halogen generator structurally comprises a pressure-bearing storage tank used for storing a freon liquid reagent, wherein the pressure-bearing storage tank is respectively connected with a compressed air pipeline, a freon charging pipeline and a freon gasification outlet pipeline, the compressed air pipeline comprises two gas flow paths, one of the gas flow paths is connected with the pressure-bearing storage tank through a three-way switch valve, the other gas flow path is connected with the freon gasification outlet pipeline, and a heater is arranged on the freon gasification outlet pipeline. The halogen generator provided by the invention can continuously and uniformly generate halogen gas with stable concentration, can easily generation conditions, is wide in gas generation range, stable in generation rate, convenient and rapid to operate, and good in adaptability to the scene.

Description

technical field [0001] The invention relates to leak detection test equipment in the nuclear field, in particular to a halogen generating device for checking the mechanical leakage rate of an iodine adsorber in a nuclear facility ventilation and purification system. Background technique [0002] In order to ensure the safe operation of nuclear facilities such as nuclear power plants, research reactors, reprocessing plants, and nuclear submarine maintenance bases, prevent gaseous radioactive substances such as radioactive iodide from entering the surrounding atmosphere, and ensure the safety of workers entering the plant, multiple nuclear air systems are set up in the plant. Purify the air supply and exhaust system. These systems are the last barrier to prevent radioactive aerosols and radioactive iodine from entering the surrounding atmosphere under normal operation and accident conditions of nuclear facilities, and ensuring that they are in good condition is an important pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/00
CPCY02E30/30
Inventor 俞杰侯建荣李永国韩丽红乔太飞马英张计荣吴涛王坤俊史英霞
Owner CHINA INST FOR RADIATION PROTECTION
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