Plate-type evaporative condenser for direct air-cooling unit

A plate-type evaporative and air-cooled unit technology, applied in steam/steam condensers, steam applications, machines/engines, etc., can solve problems that affect the safe and reliable operation of the unit, large volume of air-cooled condensers, freezing of heat exchange tube bundles, etc., to achieve Reduce the energy consumption of the unit, the effect is obvious, and the effect of reducing the exhaust pressure

Pending Publication Date: 2018-06-19
XIAN XIRE ENERGY SAVING TECH
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Problems solved by technology

[0004] The "Three North" region where the direct air-cooled cogeneration unit is located is located in the "Three North" region where the heating season is extremely cold and lasts for a long time. The condenser is bulky, and it is easy to freeze the heat exchange tube bundle under the condition of low temperature and low heat load, which seriously affects the safe and reliable operation of the unit

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  • Plate-type evaporative condenser for direct air-cooling unit

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Embodiment Construction

[0018] The present invention is described in further detail below in conjunction with accompanying drawing:

[0019] see figure 1 , the present invention is applied to the plate type evaporative condenser of the direct air-cooling unit, including high and medium pressure cylinder 1, low pressure cylinder 2, generator 3, air-cooled condenser 8 and heat network heater 15; high and medium pressure cylinder 1 and low pressure cylinder 2 pass through the liquid The dynamic butterfly valve 4 is connected, and the low-pressure cylinder 2 drives the generator 3 to rotate and generate electricity; the exhaust steam of the low-pressure cylinder 2 is connected with the air-cooled condenser 8 through the exhaust device 7; Connected; the exhaust device 7 leads to one exhaust steam to the plate evaporative condenser 13, the exhaust steam is condensed by the ambient air, and the condensed water produced is pressurized by the booster pump 14 and then flows back to the exhaust device 7. Both ...

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Abstract

The invention discloses a plate-type evaporative condenser for a direct air-cooling unit. The plate-type evaporative condenser comprises corresponding pipelines, valves and the like. After low-pressure-cylinder zero-output heat supply reformation is performed on the direct air-cooling unit, the flow of steam entering the air-cooled condenser is significantly reduced; in order to prevent an air-cooling heat exchange tube bundle from freezing, an air-cooling island steam distributing pipe inlet valve can be switched off in low-pressure-cylinder zero-output heat supply operation of the direct air-cooling unit in the heat supply season, and exhaust steam of the unit flows back to a main unit thermal system after entering the plate-type evaporative condenser for condensation. The plate-type evaporative condenser can serve as a peak cooling system for the high-temperature and high-load section of the direct air-cooling unit in summer, and the purpose of reducing operation back pressure to save energy and reduce consumption is achieved.

Description

technical field [0001] The invention belongs to the fields of flexibility, energy saving and consumption reduction in thermal power plants, and relates to a plate type evaporative condenser applied to a direct air cooling unit. Background technique [0002] At present, the winter heating needs of residents in the "Three Norths" region are mostly borne by combined heat and power units, some of which are direct air-cooled units. Among the thermoelectric decoupling technologies of heating units, the transformation cost of low-pressure cylinder zero-efficiency heating technology is the lowest, the operation mode is flexible, the thermal economy is the best, and the comprehensive advantages are the largest. [0003] The zero-output heating technology of the low-pressure cylinder breaks the original theory of the minimum cooling flow limit of the low-pressure cylinder of the steam turbine, cuts off the inlet steam of the low-pressure cylinder during the heating period, and only ke...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28B1/06F28B9/08F01K17/02
CPCF28B1/06F01K17/02F28B9/08
Inventor 马汀山吕凯程东涛王东晔万超
Owner XIAN XIRE ENERGY SAVING TECH
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