NDLI: Development of a large flow-rate high speed on/off valve for Underwater Hydraulic Ejection System

Content Provider	IEEE Xplore Digital Library
Author	Linyi Gu Lin Li Jiawang Chen Qingmiao Zhang Xinran Wu Junyi Yang Minhui Zheng
Copyright Year	2013
Description	Author affiliation: Hangzhou Universal Control Mech. Electron. Eng. Ltd., Hangzhou, China (Xinran Wu) \|\| Second Inst. of Oceanogr., State Oceanic Adm., Hangzhou, China (Junyi Yang; Minhui Zheng) \|\| State Key Lab. of Fluid Power Transm. & Control, Zhejiang Univ., Hangzhou, China (Linyi Gu; Lin Li; Jiawang Chen; Qingmiao Zhang)
Abstract	For ROV carried Underwater Hydraulic Ejection Systems (UHES), the initial ejecting speed and ejecting distance depends on the response of its high speed on/off valves, together with its steady and transient flow rate. However, the flow rate capacity and response of general high speed valve are too small and too slow to meet the demand of most UHES. In this paper, a double spool type on/off valve is put forward to create a flowing-out type valve port, so that the steady flow force could be reduced to 1/3, and the direction of transient flow force could be changed to help the electromagnet opening or closing the valve port. After analyzing the steady and transient flow force of the double spool and flowing-out type valve port, its model is established, and the effects of flow force on this valve are compared with general poppet valves through Computational Fluid Dynamics (CFD) software. Simulation results show that, the valve's response could reach 2.25ms (on) and 2.15ms (off) at 48V power supply while the rated flow rate is 60L/min. Experimental results are also satisfactory.
Sponsorship	IEEE Oceanic Eng. Soc.
Starting Page	1
Ending Page	5
File Size	1707164
Page Count	5
File Format	PDF
ISBN	9780933957404
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Valves Force Transient analysis Ports (Computers) Fluids Electromagnets Coils Underwater hydraulic ejection system High speed on/off valve Double spool type valve Flowing-out type valve port
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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