A micro pressure regulating valve
A pressure regulating valve, miniature technology, applied in the direction of valve device, safety valve, balance valve, etc.
Active Publication Date: 2020-06-23
NINGBO CHENGUANG WEITENG AUTOMATION MACHINERY CO LTD
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Problems solved by technology
[0005] Aiming at the deficiencies of the prior art, the present invention provides a miniature pressure regulating valve, the decompression mechanism and the pressure relief mechanism of the pressure regulating valve are independent of each other and do not affect each other, and both the decompression mechanism and the pressure relief mechanism can be closed manually, which can Applicable to the needs of various emergencies or special situations
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[0034] A number of embodiments of the present invention will be disclosed in the following figures. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, for the sake of simplifying the drawings, some well-known and commonly used structures and components will be shown in a simple schematic manner in the drawings.
[0035]In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and do not refer to the meaning of order or sequence, nor are they used to limit the present invention, but are only for the purpose of distinguishing the following The components or operations described by the same technical terms are only used, but should not be understood as...
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The invention relates to the technical field of gate valves, in particular to a micro pressure regulating valve. The micro pressure regulating valve comprises a shell, an upper shell cover and a lowershell cover. The upper shell cover and the lower shell cover are arranged at the upper end and the lower end of the shell in a vertically symmetrical mode. Pressure induction mechanisms are mounted in the upper shell cover and the lower shell cover, and the two pressure induction mechanisms are arranged in a vertically symmetrical mode. An upper valve element is mounted at the working end of thepressure induction mechanism located in the upper shell cover. A lower valve element is mounted at the working end of the pressure induction mechanism located in the lower shell cover. Four cavities are formed in the shell and include the air inlet cavity, the air outlet cavity, the upper pressure regulating cavity and the lower pressure regulating cavity. An air inlet pipe and an air outlet pipeare arranged on the two sides of the shell. The air inlet pipe penetrates through the shell and communicates with the air inlet cavity. The air outlet pipe penetrates through the shell and communicates with the air outlet cavity. The upper pressure regulating cavity communicates with the air inlet cavity and the air outlet cavity. The lower pressure regulating cavity communicates with the air inlet cavity and the atmosphere. A pressure regulation mechanism and a pressure relief mechanism of the pressure regulating valve can work independently and can be manually closed.
Description
technical field [0001] The invention relates to the technical field of gate valves, in particular to a miniature pressure regulating valve. Background technique [0002] The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure through adjustment, and relies on the energy of the medium itself to keep the outlet pressure automatically stable. From the point of view of fluid mechanics, the pressure reducing valve is a throttling element whose local resistance can be changed, that is, by changing the throttling area, the flow velocity and the kinetic energy of the fluid are changed, resulting in different pressure losses, so as to achieve the purpose of decompression. Then rely on the adjustment of the control and regulation system to balance the fluctuation of the post-valve pressure with the spring force, so that the post-valve pressure remains constant within a certain error range. In the traditional technology, the pressur...
Claims
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IPC IPC(8): F16K17/32
CPCF16K17/32
Inventor 许剑波
Owner NINGBO CHENGUANG WEITENG AUTOMATION MACHINERY CO LTD