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antifreeze device

A technology of antifreeze device and exhaust pipe, applied in lighting and heating equipment, steam/steam condenser, etc., can solve the problem of easy freezing of air-cooled island

Active Publication Date: 2021-01-22
CHINA SHENHUA ENERGY CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides an antifreeze device to solve the problem that the air-cooled island in the prior art is easy to freeze

Method used

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] like figure 1 As shown, the embodiment of the present invention provides a kind of antifreeze device, comprises: steam exhaust device 11; The air-cooling island 90 is connected, and the exhaust pipe 12 is used to transport the steam in the exhaust device 11 to the radiator of the air-c...

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Abstract

The invention discloses an antifreezing device. The antifreezing device comprises a steam exhaust device, a steam exhaust pipe, a water returning pipe, and a first outer connection pipe. One end of the steam exhaust pipe is connected with the steam exhaust device, the other end of the steam exhaust pipe is used for being connected with an air cooling island, and the steam exhaust pipe is used forconveying steam in the steam exhaust device to a cooler of the air cooling island; one end of the water returning pipe is connected with the steam exhaust device, the other end of the water returningpipe is connected with the air cooling island, and the water returning pipe is used for conveying condensate water generated in the cooler to the steam exhaust pipe; one end of the first outer connection pipe communicates with the water returning pipe, the other end of the first outer connection pipe communicates with the outside, a first valve is arranged on the first outer connection pipe, and the first outer connection pipe is used for conveying outside air to a cavity of the air cooling island. According to the technical scheme, through air seal of gas leakage positions of the steam exhaust pipe, the water returning pipe and the like, steam is prevented from entering the air cooling island from the gas leakage positions, and the anti-freezing aim is achieved.

Description

technical field [0001] The invention relates to the field of antifreeze technology for air-cooled islands, in particular to an antifreeze device. Background technique [0002] There is a great potential for water saving in the installation of direct air cooling for steam turbine generator sets in the northern region, and it has been widely used in the three northern regions of my country. The biggest advantage of this direct air-cooling system is water saving, but due to its own minimum anti-freezing flow limit, the problem of anti-freezing in winter is particularly prominent. At present, there are mainly the following solutions for winter anti-freezing of air-cooled islands: [0003] Reduce the speed of the air-cooling fan, reduce the cooling air volume of the fins of the air-cooling island, and increase the back pressure of the unit. However, under low load conditions, even if all the air-cooling fans are shut down, the natural cooling air volume is still very large. At th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28B9/00F28B11/00
CPCF28B9/005F28B11/00
Inventor 刘亮亮刘建春薛强李锐任丽君王军黄江瑞
Owner CHINA SHENHUA ENERGY CO LTD
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