Globe valve is widely used in numerous industries, and its driving energy consumption accounts for high percentages of the whole piping system. In order to figure out novel globe valves with low energy consumption, the pilot control globe valve (PCGV) is proposed, which is made up of a main valve and a pilot valve. By the pressure difference of fluid itself, the opened/closed status of the main valve can be controlled by the pilot valve, which can save driving energy and shorten the response time. In order to fit PCGV in an angle displaced piping system, the pilot control angle globe valve (PCAGV) is developed. In this paper, with validated numerical methods, both steady and transient simulations focusing on the valve core diameter, the single/multi orifices, orifice diameters and their arrangements located on the valve core bottom are presented. The results show that the pressure difference increases with the increase of the valve core diameter and the decrease of the orifice diameter, and large orifice diameters (d > 12 mm) should be avoided in case the valve cannot be opened. As for the multi orifices, it can be treated as a single orifice which having similar cross-sectional area. Meanwhile, the opening time of the main valve also increases with the increase of the valve core diameter correspondingly. Besides, a fitting formula of pressure difference calculation depending on the inlet velocity and the valve core diameter is obtained, which is a power–law relationship.
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November 2018
Research-Article
Parametric Study on Fluid Dynamics of Pilot-Control Angle Globe Valve
Jin-yuan Qian,
Jin-yuan Qian
Institute of Process Equipment,
College of Energy Engineering;
State Key Laboratory of Fluid Power and
Mechatronic Systems,
Zhejiang University,
Hangzhou 310027, China
e-mail: qianjy@zju.edu.cn
College of Energy Engineering;
State Key Laboratory of Fluid Power and
Mechatronic Systems,
Zhejiang University,
Hangzhou 310027, China
e-mail: qianjy@zju.edu.cn
Search for other works by this author on:
Zhi-xin Gao,
Zhi-xin Gao
Institute of Process Equipment,
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: zhixingao@foxmail.com
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: zhixingao@foxmail.com
Search for other works by this author on:
Bu-zhan Liu,
Bu-zhan Liu
Institute of Process Equipment,
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: 13675870932@126.com
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: 13675870932@126.com
Search for other works by this author on:
Zhi-jiang Jin
Zhi-jiang Jin
Institute of Process Equipment,
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: jzj@zju.edu.cn
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: jzj@zju.edu.cn
Search for other works by this author on:
Jin-yuan Qian
Institute of Process Equipment,
College of Energy Engineering;
State Key Laboratory of Fluid Power and
Mechatronic Systems,
Zhejiang University,
Hangzhou 310027, China
e-mail: qianjy@zju.edu.cn
College of Energy Engineering;
State Key Laboratory of Fluid Power and
Mechatronic Systems,
Zhejiang University,
Hangzhou 310027, China
e-mail: qianjy@zju.edu.cn
Zhi-xin Gao
Institute of Process Equipment,
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: zhixingao@foxmail.com
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: zhixingao@foxmail.com
Bu-zhan Liu
Institute of Process Equipment,
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: 13675870932@126.com
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: 13675870932@126.com
Zhi-jiang Jin
Institute of Process Equipment,
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: jzj@zju.edu.cn
College of Energy Engineering,
Zhejiang University,
Hangzhou 310027, China
e-mail: jzj@zju.edu.cn
1Corresponding author.
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received January 18, 2018; final manuscript received April 12, 2018; published online May 18, 2018. Assoc. Editor: Riccardo Mereu.
J. Fluids Eng. Nov 2018, 140(11): 111103 (8 pages)
Published Online: May 18, 2018
Article history
Received:
January 18, 2018
Revised:
April 12, 2018
Citation
Qian, J., Gao, Z., Liu, B., and Jin, Z. (May 18, 2018). "Parametric Study on Fluid Dynamics of Pilot-Control Angle Globe Valve." ASME. J. Fluids Eng. November 2018; 140(11): 111103. https://doi.org/10.1115/1.4040037
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