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A tracer penetration inspection device and detection method of a civil air defense filter absorber

A filter absorber and inspection method technology, applied in the field of air defense filter absorber tracer penetration inspection device, to achieve the effect of easy desorption

Active Publication Date: 2020-01-14
河南正清环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the above-mentioned technical problems that the civil air defense filter absorber needs to be transported and destructively inspected, the present invention provides a tracer penetration inspection device and inspection method for the civil air defense filter absorber. In-situ filter absorbers in the project are inspected one by one to ensure their protection reliability, and the inspection process has no effect on the protection performance

Method used

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  • A tracer penetration inspection device and detection method of a civil air defense filter absorber
  • A tracer penetration inspection device and detection method of a civil air defense filter absorber
  • A tracer penetration inspection device and detection method of a civil air defense filter absorber

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Embodiment 1: as figure 1 As shown, a tracer penetration inspection device for civil air defense filter absorber includes a pre-filter 1, a temperature regulator 2, a temperature sensor 3, an air volume detector 4, a tracer generating unit 5, a filter absorber 6, and a A tracer detection unit 7 and a fan 8, and the air volume detector 4 is an anemometer or an air volume flowmeter.

[0042] The pre-filter 1 communicates with the inlet end of the filter absorber 6 through the ventilation pipe 9, and the temperature regulator 2, the temperature sensor 3 and the air volume detector 4 are connected in series on the ventilation pipe 9, and the temperature sensor 3 detects the temperature in the ventilation pipe 9 , the air volume detector 4 detects the air volume in the ventilation pipe 9, the output end of the tracer generation unit 5 communicates with the ventilation pipe 9, and the tracer is injected into the filter absorber 6; the air outlet of the filter absorber 6 passe...

Embodiment 2

[0047] Embodiment 2: A tracer penetration detection method of a civil air defense filter absorber, the steps are as follows: S1, the tracer generating unit injects a tracer into the filter absorber, the tracer is a fluorine-containing substance containing at least A fluorine atom, and the affinity coefficient β≥0.8, the boiling point is lower than 0 ℃. The tracer flows out of the filter absorber under the action of the fan, and the tracer detection unit extracts the exhaust gas of the filter absorber, and obtains the breakthrough curve of the tracer;

[0048] S2, process the breakthrough curve to obtain the breakthrough time t of the tracer b or retention time t R ;

[0049] Because when testing the breakthrough curve, the sampling frequency has an important influence on the discrimination of breakthrough time and retention time, for example, if the sampling frequency is 20s -1 , it is almost impossible to sample at the moment of penetration. In order to avoid the error cau...

Embodiment 3

[0094] A tracer penetration inspection method for civil air defense filter absorbers, with an air volume of 300m 3 / h, the tracer is pentafluoroethane, its affinity coefficient β=1.09, boiling point -48.5 ° C, the tracer flows out from the filter absorber with the air flow, and the tracer detection unit extracts the tail gas of the filter absorber , and obtain the breakthrough curve of the tracer.

[0095] When the tracer is injected in a continuous manner, record the time t from the beginning of the tracer gas, and monitor the concentration C of the tracer gas in the exhaust gas at the outlet of the filter absorber at the same time, record the corresponding relationship between the two, and draw the relationship between C and t. get as figure 2 The penetration curve shown, after differential processing, is obtained as image 3 The curve shown by image 3 get t b = 33 min.

[0096] When the tracer is injected in a pulsed manner, record the time t from the beginning of th...

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Abstract

The invention discloses a civil defense filtration absorber tracer penetration inspection device and a detection method thereof. The device comprises a pre-filter, a temperature regulator, a temperature sensor, an air volume detector, a tracer generation unit, a filter absorber, a tracer detection unit and a fan. The pre-filter is communicated with an air inlet of the filter absorber through a vent pipe. The output end of the tracer generation unit is communicated with the vent pipe. A tracer is injected into the filter absorber. The air outlet of the filter absorber is communicated with the sampling end of the tracer detection unit through an air outlet pipe. The fan is arranged on the vent pipe or the air outlet pipe. The detection method comprises the following steps of S1, obtaining the penetration curve of the tracer; S2, processing the penetration curve, and obtaining the penetration time tb or the retention time tR; S3, sampling the tail gases of N filter absorbers; S4, judgingwhether the filter absorbers are qualified or not by using a outlier judgment method. According to the invention, the in-place and one-by-one inspection of civil defense engineering on-site filtrationabsorbers is realized. The inspection process has no adverse effect on the protection performance.

Description

technical field [0001] The invention belongs to the technical field of protection performance inspection of filter absorbers, and in particular relates to a tracer penetration inspection device and detection method for air defense filter absorbers. Background technique [0002] The civil air defense project is an important place for the safety of the people in the event of war and emergency response. Its nuclear, biological and chemical protection capabilities are closely related to the safety of the internal protection personnel. Filter absorbers have protective functions against poison vapor, poison aerosol, biological warfare agents and radioactive fallout dust. They are the core equipment for nuclear, biological and chemical protection. Currently, they have been installed and stored in large quantities in civil air defense projects at multiple levels as standard equipment. [0003] The installation of nuclear, biological and chemical protection equipment in civil air def...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/20G01N30/02
CPCG01M3/20G01N30/02
Inventor 张忠良杨昊魏亚敏
Owner 河南正清环境科技有限公司