Spiral air guiding device in air cooling tower
A technology of air diversion and diversion device, applied in the direction of water shower cooler, direct contact heat exchanger, heat exchanger type, etc. problems, to achieve the effect of reducing operating back pressure, improving safety and economy, and reducing impact
Pending Publication Date: 2021-05-07
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology
However, in the presence of ambient wind, the air flow through the radiator on the windward side increases, the flow through the leeward side and side radiators decreases, and the symmetrical and uniform flow state of the air is broken, which reduces the air mass flow at the outlet of the air cooling tower. Reduced heat transfer
Under high wind speed, the air still has a considerable lateral flow velocity after passing through the radiator on the windward side, so this part of the air directly passes through the radiator on the leeward side, forming a "draft" phenomenon, which seriously deteriorates the performance of the air cooling tower
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Embodiment Construction
[0014] The invention proposes a spiral air guiding device inside an indirect air cooling tower. The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0015] figure 1 In the shown schematic diagram of the installation of the spiral air guide device inside the indirect air cooling tower, 1 is the air cooling tower, 2 is the supporting column of the air cooling tower, 3 is the air cooling radiator, which is composed of more than 100 vertically arranged cooling triangles, and 4 is the invention. spiral air deflector. The spiral air guide device 4 is installed inside the air-cooling tower support column 2 and the air-cooling radiator 3, the purpose is to optimize the air flow field in the tower, reduce the influence of ambient wind on the air flow in the air-cooling tower, and avoid "hole-piercing wind" in the tower During the design and layout of the spiral guide device 4, the surface resistance should be ...
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The invention discloses a spiral air guiding device in an indirect air cooling tower, and belongs to the field of power station cooling systems. The spiral air guiding device in the indirect air cooling tower is composed of three layers of same spiral guiding plates, wherein each spiral guiding plate comprises a circular ring structure and a blade structure. The spiral guiding device is vertically arranged in the air cooling tower, the three layers of spiral guiding plates are arranged at equal intervals, the lower edge of the lowermost spiral guiding plate is tightly attached to an air cooling tower base table, and the upper edge of the uppermost spiral guiding plate is parallel to the upper edge of a cooling triangle of an air cooling radiator. The spiral air guiding device in the indirect air cooling tower can improve air flow in the air cooling tower, and guides air flow to generate a spiral rising flowing state through the blade structures on the spiral guiding plates, so that an air flow field in the tower is still uniformly distributed under the influence of environmental wind, the heat dissipation capability of a heat dissipater is improved, the unit operation back pressure is reduced, and the safety and the economical efficiency of operation of an air cooling system are improved.
Description
technical field [0001] The invention belongs to the field of power station cooling systems. Especially related to the problem of thermal performance degradation of indirect air-cooling towers caused by lateral ambient wind. By improving the flow of air inside the indirect air-cooling tower, the adverse effects of ambient wind on the air-cooling tower can be reduced, the air suction inside the air-cooling tower can be improved, and the outlet air of the air-cooling tower can be increased. Mass flow rate and heat transfer capacity of air-cooled radiators. Background technique [0002] The special national conditions of "rich coal and water shortage" in northern my country have become a bottleneck restricting the development of local coal-fired power stations, and the use of air-cooling technology is one of the effective ways to solve this problem. Power station air cooling technology refers to the use of ambient air as the cooling medium to condense the exhaust steam of the s...
Claims
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IPC IPC(8): F28F25/12
CPCF28F25/12
Inventor 杨勇平吴韬杜小泽杨立军
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)