A water hydraulic throttle valve is often used to control the water flow in piping systems. When the water flows through the valve port, cavitation occurs frequently because of the high pressure drop across the valve. The cavitation can lead to wear, vibration and noise. To solve the problem, a modified throttle valve with a drainage device is proposed to suppress the cavitation. A contrasting test was conducted to analyze the effect of drainage device on the cavitation suppression. For evaluating the influence of inlet pressure and outlet pressure on the ability of the drainage device to suppress cavitation, the power spectrum density (PSD), normalized intensity, and cavitation suppression coefficient (CSC) of dynamic pressure are introduced. The results indicate that adopting the drainage device is a feasible method to suppress cavitation. In addition, the inlet pressure and outlet pressure have a great influence on the capacity for cavitation suppression of the drainage device (CCSDD) by changing the intensity of cavitation. When the inlet pressure is at 4.0 MPa, the cavitation is generated and the CCSDD is weak. With increasing inlet pressure, the intensity of cavitation and CCSDD is gradually enhanced. But when the inlet pressure increases to 7.0 MPa, the cavitation is saturated and the cavitation suppression by the drainage device begins to decrease. On the other hand, the effect of cavitation suppression decreases significantly when the outlet pressure increases from 1.4 MPa to 3.8 MPa.
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October 2017
Research-Article
Experimental Research on the Cavitation Suppression in the Water Hydraulic Throttle Valve
Shi Weijie,
Shi Weijie
School of Mechanical Science and Engineering,
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: swajie123@163.com
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: swajie123@163.com
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Cao Shuping,
Cao Shuping
School of Mechanical Science and Engineering,
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: shupingcao@163.com
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: shupingcao@163.com
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Luo Xiaohui,
Luo Xiaohui
School of Mechanical Science and Engineering,
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: luoxiaohui0188@163.com
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: luoxiaohui0188@163.com
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Zhang Zuti,
Zhang Zuti
School of Mechanical Science and Engineering,
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: afanti_2012@hotmail.com
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: afanti_2012@hotmail.com
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Zhu Yuquan
Zhu Yuquan
School of Mechanical Science and Engineering,
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: zhuyq@hust.edu.cn
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: zhuyq@hust.edu.cn
Search for other works by this author on:
Shi Weijie
School of Mechanical Science and Engineering,
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: swajie123@163.com
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: swajie123@163.com
Cao Shuping
School of Mechanical Science and Engineering,
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: shupingcao@163.com
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: shupingcao@163.com
Luo Xiaohui
School of Mechanical Science and Engineering,
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: luoxiaohui0188@163.com
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: luoxiaohui0188@163.com
Zhang Zuti
School of Mechanical Science and Engineering,
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: afanti_2012@hotmail.com
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: afanti_2012@hotmail.com
Zhu Yuquan
School of Mechanical Science and Engineering,
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: zhuyq@hust.edu.cn
Huazhong University of Science and Technology,
1037 Luoyu Road,
Wuhan 430074, China
e-mail: zhuyq@hust.edu.cn
1Corresponding author.
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received May 7, 2016; final manuscript received July 15, 2017; published online August 23, 2017. Editor: Young W. Kwon.
J. Pressure Vessel Technol. Oct 2017, 139(5): 051302 (9 pages)
Published Online: August 23, 2017
Article history
Received:
May 7, 2016
Revised:
July 15, 2017
Citation
Weijie, S., Shuping, C., Xiaohui, L., Zuti, Z., and Yuquan, Z. (August 23, 2017). "Experimental Research on the Cavitation Suppression in the Water Hydraulic Throttle Valve." ASME. J. Pressure Vessel Technol. October 2017; 139(5): 051302. https://doi.org/10.1115/1.4037443
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