Circulating iodine adsorber performance test method and device

A technology of iodine adsorber and inspection device, which is applied in the performance inspection and device field of circulating iodine adsorber, which can solve the problems that the absolute water content cannot be removed, the motor is prone to heat, and the safety level is low, so as to reduce the detection balance time and save electric energy , the effect of protecting the fan

Inactive Publication Date: 2015-05-20
CHINA INST FOR RADIATION PROTECTION
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AI Technical Summary

Problems solved by technology

The electric heating method cannot remove the absolute water content in the air, the heating time is long, the upstream and downstream of the tested iodine adsorber are slow to reach equilibrium, the power consumption is large, and the safety level is low
The air volume of the system is adjusted by the valve, the accuracy is poor, and the motor of the fan is prone to heat

Method used

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  • Circulating iodine adsorber performance test method and device

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and implementation process.

[0023] The performance testing method of the iodine adsorber provided by the invention forms a circulating air flow between the inlet and outlet of the tested iodine adsorber, uses the circulating air flow to reduce emissions, and is beneficial to the balance of temperature and humidity. The frequency regulator and fine-tuning technology of the FM fan are used to accurately adjust the flow rate of the circulating air flow. The heat pump system can automatically control the humidity of the airflow, and make the relative humidity of the airflow on both sides of the inlet and outlet of the iodine adsorber reach the same in a short period of time, which is conducive to the relative stability of the water content before and after the inspection of the iodine adsorber to stabilize its iodine removal performance. , At the same time save time and e...

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Abstract

Belonging to the field of nuclear technologies, the invention specifically relates to an iodine adsorber performance test method and device. The method includes: forming circulating air between the inlet and outlet of a test iodine adsorber, adopting a frequency adjustment fan to accurately adjust the flow of circulating air, controlling the humidity of the circulating air by a heat pump system to make the air humidity on the inlet side and outlet side of the iodine adsorber consistent, injecting a test source into the inlet side of the iodine adsorber, conducting sampling at the inlet and outlet of the iodine adsorber respectively to test the purification performance of the iodine adsorber. The method and the device provided by the invention combine air circulation, frequency adjustment technology, heat pump technology and other energy saving technologies, and reach the comprehensive benefits of environmental protection, energy saving, safety and high efficiency.

Description

technical field [0001] The invention belongs to the field of nuclear technology, and in particular relates to the performance inspection technology of an iodine adsorber. Background technique [0002] Iodine adsorber is an important purification equipment used to purify gaseous iodine in gas stream. According to the nuclear industry standard EJ / T1183-2005 determination method of purification coefficient of iodine adsorber, the iodine adsorber must be tested for the performance of removing radioactive gas methyl iodide before leaving the factory, and the test air volume is required to be within the rated air volume ± 10%. The relative humidity of the airflow must be balanced. When the relative humidity of the environment is high, it is often necessary to use an electric heater to increase the temperature of the airflow to reduce the relative humidity of the inlet airflow. The electric heating method cannot remove the absolute water content in the air, the heating time is lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01M9/00
Inventor 史英霞侯建荣丘丹圭徐路统张计荣韩丽红孔海霞沈大鹏王坤俊俞杰李彦樟梁飞张昭辰邱继林刘鲜丽
Owner CHINA INST FOR RADIATION PROTECTION
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