Cooling compensation type air cooling island system

An air-cooled island, compensation technology, applied in steam/steam condensers, lighting and heating equipment, etc., can solve problems such as insufficient vacuuming capacity, and achieve the effects of improving antifreeze performance, reducing back pressure and reducing coal consumption

Inactive Publication Date: 2017-05-24
北京中电云汇技术有限公司
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of direct air-cooling units such as prominent anti-freezing problems of individual columns in winter and insufficient overall vacuuming capacity in summer, and propose a cooling compensation type air-cooling island system to solve the differences in design, production and install

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  • Cooling compensation type air cooling island system
  • Cooling compensation type air cooling island system
  • Cooling compensation type air cooling island system

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing, working principle, concrete structure and implementation method of the present invention are further described:

[0021] figure 1 It is a schematic diagram of the structure and principle of a conventional air-cooled island system, figure 2 A schematic diagram of the structural principle of a cooling compensation type air-cooled island system provided by the present invention, the system includes a steam turbine exhaust pipe 1, an exhaust steam distribution pipe 2, an air-cooled radiator 3, a condensed water collection pipe 4, an air extraction branch pipe 5, an air extraction pipe Air pipeline main pipe 6, vacuum equipment 7, vacuum equipment isolation valve 8 and compensation cooler 12, the compensation cooler 12 is installed on the air extraction pipeline main pipe 6, and a cooling medium supply is provided on the compensation cooler pipe 13 and cooling medium discharge pipe 14 .

[0022] Under normal circumstances, a...

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Abstract

The invention provides a cooling compensation type air cooling island system and belongs to the technical field of steam exhaust cooling of steam turbine generator units. According to the cooling compensation type air cooling island system, a compensation cooler is additionally arranged based on an existing air cooling island system; the compensation cooler is installed on a primary pipe of an air extraction pipeline; and meanwhile, each air extraction branch pipeline is provided with a regulating valve, a regulating valve bypass and a compensation cooler bypass. By arranging the compensation cooler on the air extraction pipeline, the volume flow of the air extraction pipeline can be substantially reduced, and accordingly the efficiency of a vacuumizing system is remarkably improved. Through the regulating valves on the vacuumizing pipelines, resistance compensation measures are provided for the resistance characteristics of each row of air cooling radiators, the steam flow of the different rows of air cooling radiators is distributed evenly, thus, the overall cooling capacity of the air cooling island is improved, and the average coal consumption of the units is reduced. Through the composite action of cooling compensation and resistance compensation, aggregation of non-condensable gases of the air cooling radiators can be greatly relieved, and the anti-freezing performance of the air cooling radiators is improved.

Description

technical field [0001] The invention relates to an air-cooling island system, in particular to a cooling compensation type air-cooling island system for direct air cooling of exhaust steam of a turbogenerator set, and belongs to the technical field of exhaust steam cooling of a turbogenerator set. Background technique [0002] The total energy of the fuel in the steam turbine generator set will produce a certain amount of energy loss in the reactor due to incomplete chemical reaction, waste heat discharge, heat dissipation, etc. In addition, in the process of driving the generator to generate electricity, there will be a certain loss of generator efficiency due to coil heating and rotor mechanical loss, and the energy will be converted into electrical energy through the generator. In addition, there are usually 50 More than 100% of the energy must be cooled and released through the exhaust end of the steam turbine in the form of waste steam and waste heat to complete the clo...

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Application Information

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IPC IPC(8): F28B9/10F28B9/08
CPCF28B9/10F28B9/08
Inventor 王卫良
Owner 北京中电云汇技术有限公司
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