CLC number: TK263.7
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 0000-00-00
Cited: 3
Clicked: 6872
Xiao-xiao LI, Xuan-yin WANG, Fu-shang LI. Research on new type of fast-opening mechanism in steam turbine regulating system and optimization of operation tactic[J]. Journal of Zhejiang University Science A, 2008, 9(5): 633-639.
@article{title="Research on new type of fast-opening mechanism in steam turbine regulating system and optimization of operation tactic",
author="Xiao-xiao LI, Xuan-yin WANG, Fu-shang LI",
journal="Journal of Zhejiang University Science A",
volume="9",
number="5",
pages="633-639",
year="2008",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0720017"
}
%0 Journal Article
%T Research on new type of fast-opening mechanism in steam turbine regulating system and optimization of operation tactic
%A Xiao-xiao LI
%A Xuan-yin WANG
%A Fu-shang LI
%J Journal of Zhejiang University SCIENCE A
%V 9
%N 5
%P 633-639
%@ 1673-565X
%D 2008
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0720017
TY - JOUR
T1 - Research on new type of fast-opening mechanism in steam turbine regulating system and optimization of operation tactic
A1 - Xiao-xiao LI
A1 - Xuan-yin WANG
A1 - Fu-shang LI
J0 - Journal of Zhejiang University Science A
VL - 9
IS - 5
SP - 633
EP - 639
%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0720017
Abstract: With the analysis on regulating system in 200 MW steam turbine, the necessity of appending the fast-opening function to the original system is set forth and a new type of fast-opening mechanism is devised. The mathematical model of system is built up. With the use of AMESIM software, the displacement curve of the piston, the force curve of the cartridge valve spool, the pressure curve and the flux curve in the regulation process are obtained based on simulation. The performances of three fast-opening systems composed of cartridge valves with different diameters are compared. Based on the analysis on factors that affect the execution time of fast-opening, the dead zone of the fast-opening system is put forward. To overcome the defect, different operation modes are adopted for different zones. The result shows that with the increase of the valve diameter, the regulating time in the dead zone significantly exceeds the fast-opening time in the whole journey. Accordingly, the optimization operation tactic in the dead zone and the qualification conditions are brought forward. The fast-opening system composed of 32 mm cartridge valves is taken as an example with use of the tactic. The simulation result shows that the maximum regulating time is shortened by 509 ms.
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