Optimization Tests on Main Steam Pressure for 600-MW Air-Cooling Heat Supply Units

doi:10.11930/j.issn.1004-9649.2014.4.48.3

Abstract

Abstract: The variation of steam extraction volume and exhaust pressure with main steam pressure is studied through the tests on the 600-MW air-cooling heat supply units and the quantitative measurement on the changes of the heat consumption rate under the conditions of different extraction volumes and exhaust pressures is conducted. The year-around efficient fixed and sliding pressure operation model is put forward and the original unit sliding pressure operation logic is modified. The operation results show that a decrease of net coal consumption of 1.1 g/(kW·h) can be obtained when the sliding pressure curve is at the loads of 450 MW and the heating steam extraction is 300 t/h.

Key words: air-cooling unit, heat supply unit, sliding pressure operation, heating extraction, exhaust pressure, optimal operation

CLC Number:

TK264.1

WANG Jin-quan, LI Jun, LU Hong-kai. Optimization Tests on Main Steam Pressure for 600-MW Air-Cooling Heat Supply Units[J]. Electric Power, 2014, 47(4): 48-51.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.4.48.3

https://www.electricpower.com.cn/EN/Y2014/V47/I4/48

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