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A parametric study on cavitation flow through steam trap valves under high pressure difference

Qiu, C. ; Gao, Z.X. ; Jin, Z.J. ; Qian, Jin-Yuan LU orcid and Sundén, Bengt LU (2019) XII International Conference on Computational Heat, Mass and Momentum Transfer, ICCHMT 2019
Abstract
Steam trap valves are mainly used in thermal power systems to pour out condensate water and keep steam inside. While flowing
through steam trap valves, the condensate water is easy to reach cavitation, which may cause serious damage to the piping
system. In this paper, in order to suppress cavitation inside steam trap valves, effects of valve body geometrical parameters
including orifice diameter, installation angle and the thickness of the cage are investigated by using a cavitation model. The
pressure, velocity and steam volume fraction distribution inside valves are analyzed and compared in different geometrical
parameters. The total vapor volumes are also predicted and compared. The results show that geometrical... (More)
Steam trap valves are mainly used in thermal power systems to pour out condensate water and keep steam inside. While flowing
through steam trap valves, the condensate water is easy to reach cavitation, which may cause serious damage to the piping
system. In this paper, in order to suppress cavitation inside steam trap valves, effects of valve body geometrical parameters
including orifice diameter, installation angle and the thickness of the cage are investigated by using a cavitation model. The
pressure, velocity and steam volume fraction distribution inside valves are analyzed and compared in different geometrical
parameters. The total vapor volumes are also predicted and compared. The results show that geometrical parameters have a
significant influence on the cavitation distribution and vapor volume. The optimal combination of these three parameters to
suppress cavitation are found and verified. The work is of significance for the optimization design of steam trap valves. (Less)
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type
Contribution to conference
publication status
published
subject
conference name
XII International Conference on Computational Heat, Mass and Momentum Transfer, ICCHMT 2019
conference location
Rome, Italy
conference dates
2019-09-03 - 2019-09-06
language
English
LU publication?
yes
id
f772c7b3-1b1e-40b8-8170-7bceace27786
date added to LUP
2020-01-19 14:50:47
date last changed
2020-07-27 10:23:11
@misc{f772c7b3-1b1e-40b8-8170-7bceace27786,
  abstract     = {{Steam trap valves are mainly used in thermal power systems to pour out condensate water and keep steam inside. While flowing<br/>through steam trap valves, the condensate water is easy to reach cavitation, which may cause serious damage to the piping<br/>system. In this paper, in order to suppress cavitation inside steam trap valves, effects of valve body geometrical parameters<br/>including orifice diameter, installation angle and the thickness of the cage are investigated by using a cavitation model. The<br/>pressure, velocity and steam volume fraction distribution inside valves are analyzed and compared in different geometrical<br/>parameters. The total vapor volumes are also predicted and compared. The results show that geometrical parameters have a<br/>significant influence on the cavitation distribution and vapor volume. The optimal combination of these three parameters to<br/>suppress cavitation are found and verified. The work is of significance for the optimization design of steam trap valves.}},
  author       = {{Qiu, C. and Gao, Z.X. and Jin, Z.J. and Qian, Jin-Yuan and Sundén, Bengt}},
  language     = {{eng}},
  title        = {{A parametric study on cavitation flow through steam trap valves under high pressure difference}},
  year         = {{2019}},
}