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High-circulating easily regulated pilot-operated type piston valve

A pilot-operated, piston valve technology, applied in the components, valve details, valve devices, etc. of the pumping device for elastic fluid, can solve the problems of large head loss, large volume, heavy weight, etc., to eliminate cavitation, Small size and light weight effect

Inactive Publication Date: 2015-07-29
CHANGSHA XINQIXIANG AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The main valves of the existing piston valves are basically cut-off structures, so that the valves have the defects of large flow resistance during operation, large head loss when operating at full flow and full opening, and in processing and manufacturing, there is a volume Problems such as large size and heavy weight are not conducive to the development and production of large-diameter valves

Method used

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  • High-circulating easily regulated pilot-operated type piston valve
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  • High-circulating easily regulated pilot-operated type piston valve

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] For the structure of pressure reducing pilot piston valve, please refer to figure 1 , figure 2 , comprising a valve body 10 provided with an inlet 10A and an outlet 10B, an adjusting cylinder 50 is arranged between the inlet 10A and the outlet 10B in the valve body 10, and the adjusting cylinder 50 is connected with one end of the crank-link mechanism 40, and the crank-link The other end of the mechanism 40 is connected to the piston mechanism 20 on the outer side of the valve body 10. The inlet 10A and the outlet 10B of the valve body 10 are respectively provided with a bypass attachment 30 to connect with the piston mechanism 20. The piston mechanism 20 is connected by a crank. The rod mechanism 40 drives the adjusting cylinder 50 to move axially along a pilot-operated piston valve with high flow rate and easy adjustment; the circumf...

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PUM

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Abstract

The invention discloses a high-circulating easily regulated pilot-operated type piston valve. A valve body comprises an outer shell and an inner shell, wherein a shuttle-type gradient curved cone structure is adopted at one end of the inner shell close to an inlet of the valve body; an annular channel is formed between the outer shell and the inner shell; the outer shell is connected with the inner shell through a streamline type guide plate; an adjusting drum is mounted between the inlet and outlet in the valve body; the adjusting drum is connected with one end of a crank-link mechanism; the other end of the crank-link mechanism is connected with a piston mechanism located on the outer side of the valve body. The high-circulating easily regulated pilot-operated type piston valve can adapt to a high-pressure-difference current-adjusting and pressure adjusting working condition and has the advantages of small flow resistance, excellent adjusting property, small size and light weight.

Description

technical field [0001] The invention relates to a water pump outlet control valve, in particular to a high-flow and easy-to-adjust pilot piston valve. technical background [0002] The main valves of the existing piston valves are basically cut-off structures, so that the valves have the defects of large flow resistance during operation, large head loss when operating at full flow and full opening, and in processing and manufacturing, there is a volume Problems such as large size and heavy weight are not conducive to the development and production of large-diameter valves. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a reliable structure, stable performance, energy dissipation and cavitation elimination performance, which can adapt to the flow regulation and pressure regulation working conditions of high pressure difference, and can be applied to decompression or pressure relief working conditions , and the v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/10F16K31/122F16K27/02
Inventor 何志芳
Owner CHANGSHA XINQIXIANG AUTOMATION TECH
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