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Power plant direct air cooling system preventing pipe bundle freezing

An air-cooling system, a direct technology, applied in steam/steam condensers, lighting and heating equipment, etc., can solve the problems of easy freezing of countercurrent tube bundles, achieve the effects of convenient temperature collection, energy saving, and avoiding freezing

Active Publication Date: 2020-07-10
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention aims to solve the technical problem that the countercurrent tube bundle of the existing direct air cooling system is easy to freeze

Method used

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  • Power plant direct air cooling system preventing pipe bundle freezing
  • Power plant direct air cooling system preventing pipe bundle freezing
  • Power plant direct air cooling system preventing pipe bundle freezing

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Embodiment Construction

[0016] refer to Figure 1 to Figure 2 , a direct air-cooling system for a power plant that prevents tube bundles from freezing according to the present invention includes an air-cooling island, the air-cooling island is composed of a plurality of air-cooling units, and each air-cooling unit includes a steam distribution pipe 1, a downstream tube bundle 2, a condensation pipe 3, The countercurrent tube bundle 4 and the vacuum device, the steam distribution tube 1 is connected to the downstream tube bundle 2, the downstream tube bundle 2 is connected to the condensation tube 3, the condensation tube 3 is connected to the countercurrent tube bundle 4, and the countercurrent tube bundle 4 is connected to the vacuum device, and the surface of the countercurrent tube bundle 4 is A slide rail arranged along the length direction of the pipeline is added, and a trolley that can move along the slide rail is embedded on the slide rail. Here, the fixing method of the slide rail and the emb...

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Abstract

The invention relates to the technical field of power plant direct air cooling systems, in particular to a power plant direct air cooling system preventing pipe bundle freezing, and aims to solve thetechnical problem that countercurrent pipe bundles of an existing air cooling system are prone to being frozen. The following technical scheme is adopted, specifically, the surface of a countercurrentpipe bundle is additionally provided with a slide rail, and a trolley is embedded in the slide rail and integrated with an infrared sensor; a tile freeze-proof device is further included and comprises two layers of arc-surface-shaped heating sheet, and the outer side of the outer layer of heating sheet is provided with an insulated thin film; a non-condensing gas pipe bundle is arranged between the two heating sheets, one end of the non-condensing gas pipe bundle communicates with a vacuumizing device, and the other end of the non-condensing gas pipe bundle communicates with the outside world; and a control module is further included, the control module is in wireless connection with the trolley to control the trolley to act, and the control module can wirelessly receive a signal collected by the infrared sensor to control action of the heating sheets.

Description

technical field [0001] The invention relates to the technical field of direct air-cooling systems of power plants, in particular to a direct air-cooling system of power plants for preventing tube bundles from freezing. Background technique [0002] In order to reduce the consumption of water resources and solve the problem of water shortage in coal-rich and water-scarce areas in the north, direct air cooling systems have been widely used. However, the freezing problem of the heat dissipation tube bundles of direct air-cooled units in winter is very common, and has become a major safety hazard in the winter operation of air-cooled units. At present, the air-cooling fins of direct air-cooling units mostly use single or multiple rows of flat steel core tubes and serpentine aluminum alloy fins as heat sinks. Although they have certain frost resistance, in actual operation, due to unit load and ambient temperature Parameters such as wind direction, vacuum degree, and operation m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28B1/06F28B11/00F28B9/10F28B9/02F28B9/00
CPCF28B1/06F28B9/005F28B9/02F28B9/10F28B11/00
Inventor 金燕杨宁徐樑刘海玉
Owner TAIYUAN UNIV OF TECH
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