SCAL indirect air cooling system

An air-cooling system and indirect technology, applied in indirect heat exchangers, steam/steam condensers, fixed conduit components, etc., can solve the problems of high capital investment and large footprint of air cooling towers, and achieve low capital investment, investment savings, The effect of easy water quality control and treatment

Active Publication Date: 2007-10-31
NORTH CHINA POWER ENG +1
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AI Technical Summary

Problems solved by technology

[0012] The disadvantage of the Harmon-type indirect air cooling system is that the steel pipe and steel sheet radiators are horizontally arranged in the air cooling tower, the air cooling tower occupies a large area, and the infrastructure investment is high

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Embodiment Construction

[0034] In order to enable the responsible examiner to understand the structure and composition of the present invention, as well as the overall operation mode, it is described as follows in conjunction with the drawings:

[0035] At present, there are two kinds of indirect air-cooling systems in the world. The Heller-type indirect air-cooling system requires that the cooling water system and the boiler feed water be connected together. Due to the strict quality control of the boiler feed water, it is particularly difficult to control and treat the feed water quality of the 600MW unit with high parameters and large capacity. The application of Heller indirect air cooling system in the world is limited to below 300MW units. The Harmon-type indirect air cooling system adopts steel pipe and steel sheet radiators, which are arranged radially in the air cooling tower horizontally, which fails to make full use of the ventilation area of ​​the air cooling tower, resulting in a large ar...

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Abstract

The invention relates to a SCAL indirect air-cooling system, mainly comprising a surface condenser, a recycling water system, a fog type aluminum pipe and aluminum flake radiator and an air-cooling tower, wherein in the surface condenser, after the wasted steam discharged from the steam turbine performs the first heat exchange with the cooling water, the wasted steam transmits the heat to the cooling water and condensed to condensed water, then flow back to the air-cooling system heat system, the cooling water flows to the fog type aluminum pipe and aluminum flake radiator via the recycling water pump after it is heated up, and the cooling water secondarily exchange heat with the environmental air, the cooling water transmits the heat to the air and makes the water temperature decrease, and then return to the cooling steam turbine of the surface condenser, the system recycles like this. The invention has the advantages that the Haman type indirect air-cooling system is separated from the steam water system, the water quality controlling and disposing is easy, the Hailer system air-cooling tower has a small body, The invention takes up small area and the capital cost of reactor plant is low.

Description

technical field [0001] The invention relates to a power generation equipment, especially a SCAL (Surface Condenser Aluminum exchangers) indirect air cooling system used for cooling the end of a power plant unit. Background technique [0002] Air-cooling technology is a new technology with remarkable water-saving effect. According to statistics, the water consumption of a 600MW wet-cooling unit is as high as 1500m 3 / h, which limits the development of the power industry in my country's "Three Norths" water-scarce areas. If air-cooling technology is adopted, thermal power plants can save water by 75% to 80%, and the water consumption of 600MW units can be reduced to 360m 3 / h or so. The development and research of air-cooling technology has been listed as a key scientific and technological project by the National Development and Reform Commission. The State Grid Corporation of China clearly stated in the "Eleventh Five-Year" Water-saving Plan for Thermal Power Plants that it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28B1/02F28D1/00
Inventor 谢滨秦建明柴靖宇冯雁山刘全壮郭钛星朱大宏康晓江冯璟许亮
Owner NORTH CHINA POWER ENG
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