Research and application of water abstraction problem of power station boiler surplus heat utilization system

Abstract

Abstract:

Flue gas surplus heat utilization and emission reduction technology of power plant boilers have achieved remarkable results and has been widely used. Studying on water abstraction balance, obtaining inlet and outlet pressure of the electric control valve by theoretical calculation and considering the conditions of flow and pressure, the electric control valve can be reasonably selected, which can ensure the flow direction. The problem of reverse flow in the water abstraction in project reconstruction is solved. The stability and safety of the system operation is ensured.

Key words:

further utilization of surplus heat, energysaving reconstruction, water abstraction balance, control valve, flow characteristic

ZHANG Yan.

Research and application of water abstraction problem of power station boiler surplus heat utilization system

[J]. Huadian Technology, 2018, 40(4): 22-24.

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[2]	KE Zhao，HAO Han，WANG Gang. Optimization strategy of PCV valve control system for supercritical unit [J]. Huadian Technology, 2018, 40(6): 56-57.
[3]	JIANG Jianwei. Feasibility study of alteration for pressure control valve inner structure in supercritical units [J]. Huadian Technology, 2018, 40(3): 13-16.
[4]	LIU Xiaoyan, WANG Wenzhong, OUYANG Jie, WEI Dongliang, XIE Lingui. Study on IP control valve of largescale steam turbine engaged in heat supply regulation [J]. Huadian Technology, 2018, 40(3): 9-12.
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[6]	WU Xueli1，WANG Weitao2. 600MW supercritical unit interconnection control valve fullyopened incident analysis and treatment [J]. Huadian Technology, 2017, 39(4): 30-31.
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[11]	LI Xinjian. Reformation and function simulation of protective device of PCV [J]. Huadian Technology, 2014, 36(9): 56-57.
[12]	ZHANG Taishan;LU Shiwen;ZHU Wei. Treatment of defect of steam extraction control valve of 9E gassteam combined cycle turbine [J]. Huadian Technology, 2013, 35(4): 47-49.

Research and application of water abstraction problem of power station boiler surplus heat utilization system

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