A high-efficiency purification and recovery device for radioactive aerosol and its working method
A recovery device and radioactive technology are applied in the field of high-efficiency purification and recovery devices for radioactive aerosols to achieve the effects of convenient operation, high-efficiency purification and recovery, and protection of breathing safety.
Active Publication Date: 2018-03-06
武汉海王核能装备工程有限公司
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Problems solved by technology
The particle size distribution of radioactive aerosols is very wide, generally in the range of 10 -2 On the order of -10μm, there is currently no nuclear equipment dedicated to the purification and recovery of radioactive aerosols in the atmospheric environment
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[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0027] Such as figure 1 As shown, it is a schematic diagram of a typical structure of the radioactive aerosol high-efficiency purification and recovery device of the present invention. unit, tail gas radioactive aerosol detection unit 14 and gas outlet 17, and the two ends of the radioactive aerosol filter unit are connected in parallel with differential pressure gauge 2. The differential pressure gauge 2 displays the pressure difference at both ends of the filter in real time. When the radioactive aerosol accumulated on the filter paper reaches a certain amount, the flow rate in the gas path decreases, and the pressure difference at both ends of the filter increases or even exceeds the set value. Replace filter paper manually.
[0028] Among them, the air inlet 1 provides an interface with the external gas pipeline, and the gas in the pipeline can be...
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The invention relates to the field of radiation protection, and provides an efficient radioactive aerosol purification and recovery device and a working method thereof. The device comprises an air inlet, a radioactive aerosol filtering unit, an adjusting valve, a vacuum protection valve, a gas extracting pump, a bubbling unit, a tail gas radioactive aerosol detection unit and a gas outlet which are sequentially connected, two ends of the radioactive aerosol filtering unit are parallelly connected with a differential pressure gauge, the radioactive aerosol filtering unit comprises two parallelly connected radioactive aerosol filters which are mutually redundant, first gamma dosage rate radiation detectors are arranged on the outer sides of the radioactive aerosol filters, stop valves are arranged at two ends of each radioactive aerosol filter, the bubbling unit comprises multistage serially connected bubbling water tanks, and second gamma dosage rate radiation detectors are arranged on the outer sides of the bubbling water tanks. The device is simple in structure and convenient to use, and radioactive aerosol can be efficiently purified and recovered.
Description
technical field [0001] The invention relates to the field of radiation protection, in particular to a high-efficiency purification and recovery device for radioactive aerosol and its working method. Background technique [0002] The formation of radioactive aerosols mainly includes natural nuclides and artificial nuclides, which are the main source of inhalational internal exposure hazards for workers. Therefore, it is necessary to purify the atmospheric environment of nuclear enterprises, nuclear facilities and other nuclear-related workplaces. Personnel activity areas The radioactive aerosol in the atmosphere is recycled to ensure that the air quality of the personnel activity place meets the standard and the safety of the staff is guaranteed. [0003] General radioactive waste gas purification methods include filtration, adsorption, washing, retention, decay, etc. The particle size distribution of radioactive aerosols is very wide, generally in the range of 10 -2 On the...
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IPC IPC(8): G21F9/02G21F9/12
CPCG21F9/02G21F9/12
Inventor 陈祥磊万新峰施礼刘巍裴煜程翀王益元许浒
Owner 武汉海王核能装备工程有限公司