CIESC Journal ›› 2016, Vol. 67 ›› Issue (S1): 326-333.doi: 10.11949/j.issn.0438-1157.20160528

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Dynamic characteristics simulation of steam supplying system in different steam charging ways

MA Biao1, LI Yanjun1, GUO Jiamin2, ZHANG Guolei1, SONG Fuyuan1, LI Jian1, ZENG Shuai1, ZHANG Xiaoyu1   

  1. 1 College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China;
    2 703 Research Institute of China Shipbuilding Industry Corporation, Harbin 150078, Heilongjiang, China
  • Received:2016-04-21 Revised:2016-05-07 Online:2016-08-31 Published:2016-08-31
  • Supported by:

    supported by the National Natural Science Foundation of China (51479040，51409070) and the Natural Science Foundation of Heilongjiang Province (E201422).

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Abstract:

With steam supplying system as the object of the research, the mathematical models are based on the lumped parameter theory. The study has been carried out in two different charging ways. One of them is charging valve in Auto-Control and the other is bypass valve in Auto-Control. The simulation results show as follows.The time to complete three times charging and discharging is 76.3 seconds when bypass valve is in Auto-Control. The time to complete three times charging and discharging is 62.9 seconds when charging valve is in Auto-Control. 4.5 seconds have been saved for each charging when charging valve is in Auto-Control. The key parameters maintain relatively stable during the charging period in both charging ways. The main parameters have relatively larger fluctuations when the two valves are being switched on. But the main parameters are less than 0.2 MPa. In the same charging way,the fluctuation of drum pressure is less than the fluctuation of superheated steam pressure, and the fluctuation of superheated steam pressure is less than the fluctuation of steam supplying pipe pressure.

Key words: steam supplying system, mathematical models, charging ways, dynamic simulation, numerical simulation, numerical analysis

CLC Number: 

  • TQ028.8
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