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Operation optimization method for cold end system of surface condensation type indirect air cooling power generator set

A generator set and operation optimization technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of no scientific basis, poor operating economy of the cold-end system, and lack of quantitative basis for the relationship, so as to improve the level of automatic operation, The effect of scientific and reasonable operation of cold end system and improvement of operation level

Active Publication Date: 2017-06-27
XIAN XIRE ENERGY SAVING TECH
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Problems solved by technology

[0005] The daily operation adjustment of the surface condensing indirect air-cooled generator set mainly depends on the adjustment of the circulating water flow. At present, the system operation mainly depends on the operating personnel's experience to determine the operation mode. The circulating water flow is set artificially. There is no quantitative or scientific basis for the relationship between them, and it is impossible to make reasonable adjustments to the operation mode of the unit in time according to changes in the environment and working conditions, resulting in poor operating economy of the cold-end system of the indirect air-cooled unit

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  • Operation optimization method for cold end system of surface condensation type indirect air cooling power generator set

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Embodiment Construction

[0040] The present invention is described in further detail below in conjunction with accompanying drawing:

[0041] Add control logic to the unit control system to calculate, calculate the circulating water volume that makes the unit operate with the best economy, and automatically adjust the circulating water pump in the best operation mode; this logic module is an automatic operation module for cold end system operation optimization. When the unit is running, it can switch between manual operation and operation optimization automatic operation.

[0042] When the ambient temperature Ta≥5°C and no antifreeze is required, the cold-end system operation mode can be switched to the automatic operation mode for operation optimization when the load of the unit is stable.

[0043] The implementation method of the automatic operation module for the operation optimization of the cold end system is: when reducing the operating flow rate of the circulating water, as long as the power co...

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Abstract

The invention discloses an operation optimization method for a cold end system of a surface condensation type indirect air cooling power generator set, which enables the operation of the cold end system of a surface condensation type indirect air cooling power generator set to be more scientific and reasonable, improves operation economy of the power generation set, and performs automatic control operation to improve automated operation level of the set. A relation between a circulated water flow and backpressure under different loads and different environment temperatures can be obtained without performance testing on site, and operation optimization of the cold end system can be realized according to actual operation performances of the set. The conditions are changed along with change of time, the relation between the circulated water flow and the backpressure is different under different loads and different environment temperatures, such that the precision of operation optimization is improved by adopting the operation optimization method for a cold end system, and the project implementation investment is also reduced. According to the operation optimization method for a cold end system, the cold end system is enabled to be operated automatically and economically, manually adjusted errors of operating personnel are avoided, the labor intensity of the operating personnel is reduced and operation economy of the power generator set is improved.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of energy saving, and relates to a method for optimizing the operation of a cold-end system of a surface-condensing indirect air-cooled generating set. [0003] 【Background technique】 [0004] As the society pays more and more attention to environmental protection, the requirements for coal-fired generating units are getting higher and higher. It is required that the average power supply coal consumption of active coal-fired generating units after transformation is less than 310 grams. Require. Since the operating economy of the surface condensing indirect air-cooled unit is worse than that of the wet-cooled unit, it is more urgent to carry out research on the optimal operation of the cold-end system of the indirect air-cooled unit, which is of great significance for reducing the coal consumption of the unit and improving the operating economy of the unit. [0005] The daily operation adjustment of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D21/00
CPCF01D21/00
Inventor 陈胜利刘学亮万超荆涛吕凯李高潮
Owner XIAN XIRE ENERGY SAVING TECH
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