Bowa Hydropower Station Replaced Tailwater Surge Chamber by Draft Tube Gate Chamber Hydraulic Calculation

ZHANG Zuo-dong , JU Xiao-ming, LIU Qi-yong

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China Rural Water and Hydropower ›› 2018 ›› (10) : 186-190.

Bowa Hydropower Station Replaced Tailwater Surge Chamber by Draft Tube Gate Chamber Hydraulic Calculation

  • ZHANG Zuo-dong1 ,JU Xiao-ming1,2 ,LIU Qi-yong3
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Abstract

Use transient flow calculation method, proves Bowa hydropower station replaced tailwater surge chamber as draft tube gate chamber is practical,shows the principle and process of hydraulic calculation,and calculation results meet to the design standard requirements, the maximum vacuum degree of hydroturbine draft tube after load rejection is 3.3.m, and little fluctuation in water-diversion system is stable. In large size tailwater surge chamber construction, replaced tailwater surge chamber as draft tube gate chamber can avoid the risk of excavation under unfavorable geological condition.

Key words

draft tube gate chamber / tailwater surge chamber / vacuum degree of hydroturbine draft tube / calculation of regulation guarantee / stability of little fluctuation

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ZHANG Zuo-dong , JU Xiao-ming, LIU Qi-yong. Bowa Hydropower Station Replaced Tailwater Surge Chamber by Draft Tube Gate Chamber Hydraulic Calculation. China Rural Water and Hydropower. 2018, 0(10): 186-190

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