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Shutter type environmental wind guiding device of air cooling island of power plant

A technology of diversion device and ambient air, which is applied in the direction of steam/steam condenser, lighting and heating equipment, etc., which can solve the problems of unfavorable air-cooling fan suction, improve safety and economy, reduce back pressure, and improve operation The effect of the characteristic

Inactive Publication Date: 2009-11-18
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing studies have shown that under the action of the ambient wind field, a low-pressure area will be formed at the lower part of the air-cooled platform, which is not conducive to the air suction of the air-cooled fan

Method used

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  • Shutter type environmental wind guiding device of air cooling island of power plant
  • Shutter type environmental wind guiding device of air cooling island of power plant
  • Shutter type environmental wind guiding device of air cooling island of power plant

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Embodiment Construction

[0012] The invention proposes an environmental wind guide device in the form of a louver structure. exist figure 1 The schematic diagram of the structure of the louvered ambient wind guide device shown shows the local amplification effect of the louvered ambient wind guide device installed on the adjacent sides of the air-cooling island. The louver-type ambient wind guide device 1 is installed on the lower part of the edge of the air-cooling platform 2 of the air-cooling island, and is fixed on the walkway or windshield wall of the air-cooling island. Around the periphery of the air-cooled island, louver-type flow guide devices are installed, such as figure 2 shown. The louver deflector is composed of a smooth and flat metal sheet, such as aluminum alloy, stainless steel or fiberglass. The inclination angle θ of the deflector plate can be adjusted through the louver lifting adjustment mechanism. The inclination angle of the deflector plate is determined according to the w...

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Abstract

The invention discloses a shutter type environmental wind guiding device of an air cooling island of a power plant, belonging to the technical field of energy power. The shutter type environmental wind guiding device is installed between the lower margin of an air cooling platform and an upright post brace of the air cooling platform, is fixed on the footpath or wind wall around the periphery of the margin of the air cooling platform and inclines from the outside of the air cooling platform to the air cooling island. The angle of inclination of a guiding flat slab is regulated from 30 degrees to 60 degrees by a shutter lift regulating mechanism; the number of layers of the guiding flat slab is determined according to the distance between the lower margin of the air cooling platform and the upright post brace. The device of the invention adopts the smooth guiding flat slab with regulable angle to realize the guiding function of the environmental wind and ensure that the kinetic energy of the environmental wind moving transversely on the lower part of the air cooling platform is converted into the pressure energy of cooling air and the kinetic energy blown toward the inlet of an air cooling fan along the guiding flat slab so as to improve cooling air flow, reduce hot air reflow, improve operating characteristics of air cooling systems, decrease back pressure of machine sets and improve safety and economical efficiency of operation of machine sets.

Description

technical field [0001] The invention belongs to the field of energy power. In particular, it involves the use of louver-type devices arranged around the periphery of the lower edge of the air-cooling platform and between the supports of the air-cooling platform to weaken the adverse effects of the ambient wind field on the operation of the direct air-cooling system, effectively utilize the energy of the ambient wind field, improve the operating characteristics of the air-cooling system, and reduce the unit cost. A louver-type ambient wind guide device for back pressure power station air-cooled islands. Background technique [0002] my country's "Three North" regions are rich in coal and lack water, so the direct air cooling technology for condensers has become an effective way to save water in power stations. Direct air-cooled units use ambient air as the cooling medium for steam turbine exhaust. Therefore, ambient meteorological conditions, especially ambient wind speed an...

Claims

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Application Information

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IPC IPC(8): F28B9/00
Inventor 杨立军杜小泽杨勇平
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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