Nuclear power station aseismic cooling tower filler structure and mounting method thereof
An installation method and cooling tower technology, which are applied in the field of nuclear power, can solve problems such as easy breakage, low cooling capacity, and self-heavy weight, and achieve the effects of solving seismic problems, economical cost, and easy construction.
Active Publication Date: 2014-11-05
中广核工程有限公司 +1
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Problems solved by technology
However, although the air resistance of the ceramic filler with a small specific surface (the surface area per unit volume of the filler) is small, it has the disadvantages of low cooling capacity, low strength, brittle quality, and easy to break; the ceramic filler with a large specific surface, although the cooling capacity can meet Requirements, but there are disadvantages of large air resistance, low porosity and self-heavy
In addition, due to the heavy weight of the ceramic filler, there is a problem of large blocking area when the fixed frame is used, which not only increases the air resistance and reduces the cooling area, but also the fixed frame itself is easily corroded
[0005] Therefore, the fillers made of plastic and ceramic materials widely used at present cannot meet the cooling requirements of cooling towers under earthquake conditions.
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[0037] In order to make the purpose of the invention, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementations described in this specification are only for explaining the present invention, not for limiting the present invention.
[0038] Filling production
[0039] The first problem that needs to be solved is the material selection of the cooling filler. The material of the selected filler needs to meet the following requirements: have strong earthquake resistance, and can still work normally after experiencing extreme earthquakes; have high cooling capacity; have good affinity Water performance, easy to be wetted and attached by water; small ventilation resistance, easy processing of materials; light weight, corrosion resistance; easy constructi...
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The invention discloses a nuclear power station aseismic cooling tower filler structure which comprises a plurality of filler mounting areas capable of mounting filler pieces. Each filler mounting area is formed by arranging fixed mounting plates and surrounding plates in a surrounding manner, each fixed mounting plate is provided with mounting holes, the filler pieces are folding corrugated plates, a fixed shaft is fixedly connected at two ends of each filler piece and stably inserted in the mounting holes of each fixed mounting plate, adjacent filler pieces are superposed positively and negatively, and reverse elasticity of contact points are offset under earthquake acting force. The nuclear power station aseismic cooling tower filler structure utilizes current mechanical processing level, is economical in manufacturing cost, easy to construct and convenient to maintain, solves aseismic problems of cooling tower water-sprinkling filler, meets requirements that a cooling tower after going through ultimate earthquake can still work normally, and provides guarantee for continuous cooling of reactor after a nuclear power station suffers from the ultimate earthquake. The invention further discloses a mounting method for the nuclear power station aseismic cooling tower filler structure.
Description
technical field [0001] The invention belongs to the technical field of nuclear power, and more specifically, the invention relates to a filling structure for an anti-seismic cooling tower of a nuclear power plant and an installation method thereof. Background technique [0002] After an earthquake, when the external intake and drainage outlets of the nuclear power plant are blocked, cooling towers are required to discharge the waste heat from the core. The cooling tower and the components inside the cooling tower need to be designed according to the vibration intensity of the SL-2 magnitude earthquake where the nuclear power plant is located. Cooling filler is one of the core components of the cooling tower. In addition to meeting the conventional heat exchange requirements, it must also meet the anti-seismic requirements. [0003] At present, the cooling filler widely used in cooling towers of various nuclear power plants is plastic film filler, which has the advantages of ...
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IPC IPC(8): F28F25/08
Inventor 程道仓孙一奇刘百发李岚胡劲松吴襄竹吴庆旺齐文明
Owner 中广核工程有限公司