System and method for supplying water to radioactive regions of nuclear chemical engineering plant
A radioactive, low-radioactive technology, applied in the field of water supply in the radioactive area of nuclear chemical industry, to achieve the effect of simple and convenient maintenance, wide application, and solution to backflow pollution
Inactive Publication Date: 2016-03-16
CHINA NUCLEAR POWER ENG CO LTD
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Problems solved by technology
[0004] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a system and method for supplying water to the radioactive area of the nuclear chemical plant, which can effectively avoid backflow pollution when the water is supplied to the radioactive area of the nuclear chemical plant. problems, and the application is safe and reliable, and the maintenance is simple and convenient
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[0017] The present invention will be further described below in combination with specific embodiments.
[0018] Such as figure 1 As shown, a kind of system that the present invention provides is used for supplying water to the radioactive area of nuclear chemical plant includes extending from non-radioactive or low radioactive area (also known as "radioactive orange area") I to radioactive area (also known as "radioactive red area") ) II water supply pipe 1 and the cut-off water tank 5 that is connected with the water supply pipe 1 and is located in the radioactive area II, the bottom of the cut-off water tank 5 is connected with a water outlet pipe 7; the bottom end of the cut-off water tank 5 is vertically provided with The overflow pipe 8 that stretches out from the bottom of the cut-off water tank 5, the top opening of the overflow pipe 8 can be set to the bell mouth shape, and the top of the overflow pipe 8 is lower than the bottom of the water inlet of the cut-off wat...
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The invention relates to a system and method for supplying water to radioactive regions of a nuclear chemical engineering plant. The system comprises a water supply pipe (1) and a break tank (5), wherein the water supply pipe (1) stretches to the radioactive region II from the non-radioactive or low-level radioactive region I, and the break tank (5) is connected with the water supply pipe (1) and is arranged in the radioactive region II. The bottom of the break tank (5) is connected with a water outflow pipe (7), an overflow pipe (8) is vertically arranged in the break tank (5), the bottom end of the overflow pipe (8) stretches out from the bottom of the break tank (5), and the top end of the overflow pipe (8) is lower than the bottom end of a water inlet of the break tank (5). The problem of backflow pollution can be effectively solved, and the system and method are safe, reliable, easy and convenient to maintain and wide in application range.
Description
technical field [0001] The invention belongs to the technical field of water supply in radioactive areas of nuclear chemical industry, and in particular relates to a system and method for supplying water to radioactive areas of nuclear chemical plants. Background technique [0002] Article 3.2.4 of "Code for Water Supply and Drainage Design of Buildings" GB50015-2003 (2009 Edition) stipulates that "domestic water shall not be polluted by siphon and back pressure in the pipeline", and in Sections 3.2.4 and 3.2.5 Provide corresponding anti-backflow pollution measures. The radioactive area in the nuclear chemical plant belongs to the area with a high degree of backflow pollution. Once the backflow of the water supply pipe occurs, it may damage human or biological health, or even endanger life or cause serious diseases. Effective backflow prevention measures must be taken. According to the requirements of the above specifications, air gaps, decompression type backflow preventer...
Claims
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IPC IPC(8): E03B1/02E03B7/07E03B11/00
CPCE03B1/02E03B7/07E03B11/00
Inventor 李海珠焦迪王东海白玮张荣勇王芳王颖梁鹏王莉
Owner CHINA NUCLEAR POWER ENG CO LTD