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Extra-large-flow radioactive aerosol sampling device

A sampling device, aerosol technology, applied in the sampling device and other directions, can solve the problems of filter material blockage, filter material damage, equipment damage, etc., and achieve the effect of alleviating blockage

Inactive Publication Date: 2014-02-19
NUCLEAR & RADIATION SAFETY CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The clogging of the filter material is a prominent problem encountered in the operation of the ultra-large flow rate radioactive aerosol sampler, especially in the case of complex meteorological conditions or serious pollution of atmospheric particles, frequent filter material clogging may easily cause damage to the filter material or even damage to the equipment

Method used

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Embodiment Construction

[0016] The accompanying drawings disclose specific embodiments of the present invention without limitation, which will be further described below in conjunction with the accompanying drawings.

[0017] An ultra-large-flow radioactive aerosol sampling device, characterized in that the sampling device is a box (1) structure with a control panel (2), including an upper sampling loop and a lower sampling loop, and a cyclone air intake tube (4 ), aerosol sampling head I (14), aerosol sampling head II (7), solenoid valve I (15), solenoid valve II (8), vacuum pressure gauge I (21), vacuum pressure gauge II (20), Flow meter I (17), flow meter II (10), flow monitor (22), vacuum pump I (18), vacuum pump II (11) and an automatic control unit (23).

[0018] The connection relationship of the sampling device is as follows: the air inlet (3) is connected tangentially to the cyclone air intake cylinder (4), and the top and bottom of the cyclone air intake cylinder (4) are respectively provid...

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Abstract

The invention provides an extra-large-flow radioactive aerosol sampling device and belongs to the field of radiation protection and environmental protection. The sampling device is in a box structure with a control panel, comprises an upper sampling circuit and a lower sampling circuit and consists of a cyclone type air inlet cylinder, an aerosol sampling head, a vacuum pressure gage, a flow monitor, a vacuum pump, an automatic control unit, a joint and a pipeline. According to the sampling device, with the design of the cyclone type air inlet cylinder and the double sampling circuits, the blockage of a filter material can be effectively relieved, and the sampling device is particularly suitable for the extra-large-flow collection of radioactive aerosol under complex weather conditions or severe atmospheric particulate pollution.

Description

technical field [0001] The invention provides a super-large-flow radioactive aerosol sampling device, which belongs to the fields of radiation protection and environmental protection. Background technique [0002] Radioactive aerosol monitoring is an important part of nuclear emergency monitoring and conventional environmental nuclear radiation monitoring, and the collection of radioactive aerosols is the premise of monitoring work. In order to ensure the timeliness, accuracy and reliability of monitoring data, the sampling volume or sampling rate of radioactive aerosols usually needs to meet certain requirements. The cumulative sampling volume of aerosol during monitoring should not be less than 10000m 3 The Comprehensive Nuclear-Test-Ban Treaty Organization clearly stipulates that the flow rate of aerosol samplers equipped at its radionuclide monitoring stations shall not be lower than 500m 3 / h. [0003] To meet the needs of radiation environment monitoring, ultra-larg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/22
Inventor 李锦韩善彪张艳霞
Owner NUCLEAR & RADIATION SAFETY CENT
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