A three-position three-way electric control globe valve
An electronically controlled globe valve, three-position three-way technology, applied in multi-way valves, valve devices, engine components, etc., can solve the problems of high compressed air filtration accuracy, eccentric wear of the valve core, jamming, etc., to reduce The effect of air leakage failure, reducing requirements and improving service life
Active Publication Date: 2017-07-25
TIANJIN RAILWAY SIGNAL
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Problems solved by technology
[0002] At present, most of the control valves used in the domestic hump marshalling station speed control equipment are slide valve electromagnetic reversing valves. The sealing method of this valve is radial sealing. grinding and jamming
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[0021] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0022] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...
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The invention provides a three-position three-way electric-control stop valve which comprises a valve body, a bottom plate and a valve deck. The top end of the valve body is fixedly connected with the valve deck in a sealed mode. The bottom end of the valve body is fixedly connected with the bottom plate in a sealed mode. Two identical two-position two-way stop valve structures are arranged inside the valve body side by side in the longitudinal direction. The two two-position two-way stop valve structures are located inside a left control cavity and a right control cavity of the valve body respectively. According to the three-position three-way electric-control stop valve, the requirement for filtering accuracy of compressed air is lowered, and secondary purification of the compressed air for work is not needed. Both a plug core and a valve element of the three-position three-way electric-control stop valve are installed vertically, eccentric wear is avoided, air leakage faults caused by eccentric wear of the valve element are reduced, and the reliable service life of a product is prolonged. The three-position three-way electric-control stop valve can be operated manually, air exhaust is not needed during maintenance, and on-site maintenance and overhaul for an electromagnetic pilot operated valve are facilitated.
Description
technical field [0001] The invention belongs to the control field of speed regulating equipment of a railway hump marshalling station, and in particular relates to a three-position three-way control valve. Background technique [0002] At present, most of the control valves used in the domestic hump marshalling station speed control equipment are slide valve electromagnetic reversing valves. The sealing method of this valve is radial sealing. Grinding and jamming. Contents of the invention [0003] In view of this, the present invention aims to propose a three-position three-way electronically controlled stop valve to reduce the requirement of the existing device for compressed air, and reduce the occurrence of eccentric wear and jamming of the valve core. [0004] In order to achieve the above object, technical solution of the present invention is achieved in that way: [0005] A three-position three-way electronically controlled stop valve, including a valve body, a bo...
Claims
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IPC IPC(8): F16K11/22
CPCF16K11/22
Inventor 黄敏寇建设李攀史国珍赵剑锋
Owner TIANJIN RAILWAY SIGNAL