Double-damping high-pressure back pressure valve without diaphragm
A back pressure valve, non-diaphragm technology, used in safety valves, balance valves, valve devices, etc., can solve the problems of reducing the wear speed of back pressure valves, and achieve the effects of smooth pulse, prolong service life and convenient maintenance.
Pending Publication Date: 2018-06-19
MILTON ROY IND SHANGHAI
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] However, there is currently no technical solution on how to reduce the wear rate of the back pressure valve in a pipeline without a pulsation damper
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0026] A double damping non-diaphragm high pressure back pressure valve, such as figure 1 , figure 2 As shown, it includes main valve body 1, auxiliary valve body 2, main valve core 3, auxiliary valve core 4, decompression cylinder 6, valve core pressing plate 8, auxiliary spring 10, main spring 11 and main spring gland 12, auxiliary valve The body 2 is set in the main valve body 1, the lower end of the decompression cylinder 6 is connected with the main valve body 1, the upper end is connected with the main spring cover 12, the main valve core 3 is set in the decompression cylinder 6, the lower end of the main valve core 3 is connected with the auxiliary The valve body 2 is sealed or separated to realize the opening and closing of the back pressure valve. The upper end of the main valve core 3 is connected to the auxiliary valve core 4, and the upper end of the auxiliary valve core 4 is connected to the valve core pressure plate 8. Between the valve core pressure plate 8 and...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a double-damping high-pressure back pressure valve without a diaphragm. The double-damping high-pressure back pressure valve comprises a main valve body, an auxiliary valve body, a main valve core, an auxiliary valve core, a pressure reducing cylinder, a valve core pressing plate, an auxiliary spring, a main spring and a main spring gland; the auxiliary valve body is arranged in the main valve body, the lower end of the pressure reducing cylinder is connected to the main valve body, the upper end is connected to the main spring gland, and the main valve core is arranged in the pressure reducing cylinder; and the lower end of the main valve core and the auxiliary valve body are sealed or separated to open and close a back pressure valve, the upper end of the main valve core is connected with the auxiliary valve core, the upper end of the auxiliary valve core is connected with the valve core pressing plate, the main spring is arranged between the valve core pressing plate and the main spring gland, and the auxiliary spring is arranged between the auxiliary valve core and the main valve core. Compared with the prior art, the double-damping high-pressure back pressure valve without the diaphragm is provided with the auxiliary spring providing damping in addition to the main spring providing spring back for the valve core. The auxiliary spring is used for absorbing and releasing part of the energy, so that the speed of opening and closing of the valve core can be eased, and the pulse generated by a pump in the valve body is smoother and the performance of the back pressure valve is improved significantly.
Description
technical field [0001] The invention relates to a back pressure valve, in particular to a double-damping non-diaphragm high pressure back pressure valve. Background technique [0002] When the pressure of the pipeline and container equipment is unstable, it is necessary to install a back pressure valve to keep the pressure of the pipeline network stable so that the pump can maintain a normal flow output. And at the outlet of the positive displacement pump, the medium will produce siphon or water hammer due to gravity or other effects, which will lead to fluctuations in the flow and pressure of the pipe network system. The back pressure valve uses the built-in spring force. When the pressure of the pipe network system is lower than the set pressure, the valve core blocks the pipeline under the action of the built-in spring force, reducing the flow area; when the pressure ratio of the pipe network system is set When the pressure is high, the valve core is opened by the built-...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F16K17/30
CPCF16K17/30
Inventor 张硕卫中山柳玉萍陈晓蓉
Owner MILTON ROY IND SHANGHAI