Surface-type indirect air cooling system plate-type condenser of thermal power plant

A technology for thermal power plants and air cooling systems, which is applied in steam/steam condensers, lighting and heating equipment, etc., and can solve the problems of high end difference, reduced thermal efficiency, and increased investment.

Inactive Publication Date: 2010-12-08
NORTHEAST ELECTRIC POWER DESIGN INST CO LTD OF CHINA POWER ENG CONSULTING GRP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of the surface condensing indirect air cooling system is that due to the use of the surface condenser, the system needs to perform two heat exchanges, so the end difference is high, the thermal efficiency is reduced, and the cooling area of ​​the heat pipe condenser is relatively increased. , increased investment

Method used

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  • Surface-type indirect air cooling system plate-type condenser of thermal power plant
  • Surface-type indirect air cooling system plate-type condenser of thermal power plant
  • Surface-type indirect air cooling system plate-type condenser of thermal power plant

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Embodiment Construction

[0009] as attached figure 1 As shown, the headers of the condenser are arranged symmetrically on the left and right. There are cooling water inlets and outlets on the headers. There are steam inlets above the headers and condensate wells below the headers. Plate heat exchangers are connected between the headers. The stainless steel plates are vertically and equally spaced, and the horizontal partitions are arranged between the stainless steel plate 1 and the plate 2. The horizontal partitions are arranged in a triangle, and the partitions are at an angle of 60 degrees to each other to form a corrugated cooling water channel. The box is connected; a vertical partition is set between the plate 2 and the plate 3, and the end faces of the plate 2 and the plate 3 are sealed. A horizontal partition is set between the plate 4 and the plate 4 to form a cooling water channel; a longitudinal partition is set between the plate 4 and the plate 5 to form a water vapor channel, and so on to...

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Abstract

The invention relates to a surface-type indirect air cooling system plate-type condenser of a thermal power plant, which comprises headers that are symmetrically arranged; a steam inlet is arranged above the headers, and a condensate water well is positioned under the headers; the condenser is characterized in that a heat exchanger connected between the headers has plate-type structure which is provided with a plurality of vertical metal plates; a transverse clapboard is arranged between the plate 1 and the plate 2, so that a cooling water channel is formed, and the two ends of the cooling water channel are communicated with the headers; a vertical clapboard is arranged between the plate 2 and the plate 3, so that a steam channel is formed; a transverse clapboard is arranged between the plate 3 and the plate 4, so that a cooling water channel is formed, and so on, a plate-type heat exchanger can be formed. On the premise of maintaining the original design, the plate-type condenser improves the heat transfer coefficient by 20-45%, and reduces the weight, the volume, tubes and other material consumption by 30%, thus greatly reducing the manufacturing cost.

Description

technical field [0001] The invention relates to condensation heat exchange equipment of a surface type indirect air cooling system of a thermal power plant. Background technique [0002] The air cooling technology of thermal power plants has only been developed in the past half a century. Since the 1980s, air-cooling technology has been widely used in large-scale thermal power units in my country's inland water-scarce areas. The total installed capacity of air-cooled power stations that have been built and are under construction exceeds 70 million kilowatts. In the air-cooling technology, the indirect air-cooling system (also known as the Harmon system) using the surface condenser is widely used. The system is composed of a surface condenser and an air-cooling tower equipped with a radiator. Similar, the difference is that the surface type convective heat exchange air cooling tower is used instead of the mixed evaporative cooling heat exchange wet cooling tower, the stainle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28B1/02
Inventor 惠超郭晓克孙向军肖峰石志奎王伟民李正
Owner NORTHEAST ELECTRIC POWER DESIGN INST CO LTD OF CHINA POWER ENG CONSULTING GRP
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