Research on Steam Discharge System Based on Pressure Control Mode

Abstract:

In order to keep the balance of the inside and outside energy of steam power system, the main steam pressure must be effectively controlled under maneuvering condition or accident condition. A set of lumped parameter model of steam discharge system was established, its control system was designed based on the pressure control mode and the simulation of steam turbine trip accident condition was calculated. Result shows that the steam discharge control system could make the steam discharge valve open in time under accident condition. Some steam could be discharged into condenser directly through steam conditioning device. So the main steam pressure could be always maintained within normal range which improves the safety of steam turbine unit and the adaptability to steam load.

• Periodical: Applied Mechanics and Materials (Volume 529)
• Pages: 569-573
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.529.569
• Online since: June 2014
• Authors: Yong Sheng Zhang*, Ying Tang
• Keywords: Pressure, Steam Discharge, Trip Accident

References

[1] Wang Bao-sheng, Wang Dong-qing and Zhang Jian-min: Nuclear Power Engineering, Vol. 32(2010), pp.38-44.

[2] Wang Ren-zhi: Electric Power, Vol. 38(2003), pp.72-74.

[3] Wang Zhi-ren: Automation Instrument, Vol. 3(2003), pp.51-53.

[4] Fan Yi-zhi, Wang Xue-hua and Chen Gang: Hubei Power, Vol. 35(2011), pp.46-47.

[5] Wang Fei: Journal of Taiyuan University of Technology, Vol. 31(2000), pp.167-169.

[6] Zhang Yong-sheng and Ma Yun-yi, In: 1st International Conference on Electrical and Control Engineering, 2010, pp.253-256.