Multistage clearance throttling pressure adjusting valve

A throttling pressure regulating valve and clearance technology, applied in the field of fluid pressure control, can solve the problems of small applicable pressure range, high processing difficulty, short service life, etc., and achieve the effects of reduced processing difficulty, good linear relationship, and prevention of concentrated impact

Pending Publication Date: 2019-10-22
四川杰特机器有限公司
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  • Abstract
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Problems solved by technology

[0004] The purpose of the invention is to solve the problems of short service life, small applicable pressure range and high processing difficulty of existing valves. The present invention provides a multi-stage gap throttling and pressure regulating valve. It forms a regularly changing tortuous flow path with the radial gradie

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  • Multistage clearance throttling pressure adjusting valve
  • Multistage clearance throttling pressure adjusting valve
  • Multistage clearance throttling pressure adjusting valve

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the drawings.

[0030] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0031] See Figure 1-5 This embodiment provides a multi-level gap throttling pressure regulating valve, which includes a valve body 4, a valve seat 3, a valve core 2 and a push rod 1.

[0032] The valve body 4 includes walls defining a fluid inlet 8 and a fluid outlet 9. Seen from the cross section, the wall of the valve body 4 encloses the fluid inlet 8 and the fluid outlet 9 to form a vertically extending inflow channel 401 and a horizontally extending outflow. Channel 402.

[0033] The valve sea...

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Abstract

The invention discloses a multistage clearance throttling pressure adjusting valve and relates to the technical field of fluid pressure control. The multistage clearance throttling pressure adjustingvalve comprises a valve body, a valve seat connected in the valve body in a sealed manner, a valve element contained in the valve seat and a push rod driving the valve element to move in the longitudinal direction of a valve seat runner. The valve seat is provided with at least three flange step limiting radial gradual change cavities arranged in the longitudinal direction of the valve seat, the valve element is provided with at least three flange step limiting radial change parts arranged in the axial direction of the valve element, and the radial gradual change cavities are matched with theradial gradual change parts. A buffering face is formed on the axial end face of a flange step in the medium flowing direction of the runner. By means of the multistage clearance throttling pressure adjusting valve, the regularly changing zigzag runner is formed by the radial gradual change parts arranged on the valve element and the radial gradual change cavities formed in the valve seat. The buffering purpose is achieved through the classified axial end faces of the radial gradual change parts, pressure is reduced stably stage by stage damage to the valve element and the valve seat is small,the service life of the valve is prolonged effectively, machining is easy, and the applicable pressure range is large.

Description

Technical field [0001] The invention relates to the technical field of fluid pressure control, in particular to a multi-level gap throttling pressure regulating valve. Background technique [0002] In the pressure testing industry, the reliability and stability of testing equipment largely depend on the working life of various control valves. Due to the high pressure, the control valve opens and closes frequently, and the valve core is damaged by the impact of high pressure. The service life of various high pressure and ultra high pressure valves is generally not particularly high. With the increasing requirements for the reliability and stability of high-pressure valves, it is necessary to make some adjustments in the traditional valve structure to achieve the effect of extending the service life of the valve. [0003] The Chinese utility model patent with the patent application number CN97221570.0 discloses a labyrinth-type high differential pressure flow regulating valve. The v...

Claims

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Application Information

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IPC IPC(8): F16K1/36F16K1/32F16K27/02
CPCF16K1/32F16K1/36F16K27/02
Inventor 李文刘其亮潘大华吴家洪邱富彬陈建李波胡兴元
Owner 四川杰特机器有限公司
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