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Integrated high-pressure large-flow proportional overflow type unloading valve

A large flow, overflow technology, applied in the direction of fluid pressure actuating devices, servo motor components, mechanical equipment, etc., can solve problems such as affecting the working capacity of the valve, large system pressure shock, affecting the reliability of the pumping station, etc. Simple and reasonable, the effect of reducing system pressure shock and reducing unloading time

Active Publication Date: 2021-09-21
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] At present, the technical difficulties faced by fully mechanized mining liquid supply technology are mainly reflected in two aspects: on the one hand, the liquid supply capacity is insufficient: large mining height work faces higher requirements on the liquid supply flow and pressure of the support liquid supply system
On the other hand, the precise control resolution of the liquid supply system is insufficient: automated and intelligent work faces increasingly higher and higher precision control requirements for the flow and pressure of the liquid supply system, in order to adapt to fast follow-up, straightness control and timely support Waiting for the needs of working face equipment intelligent drive
However, the existing liquid supply systems all use the on-off unloading valve switch to control the high-pressure and large-flow emulsion pump station. It will affect the working ability of the valve and the reliability of the pumping station, so it is necessary to improve the control effect of the liquid supply system through a high-pressure and large-flow proportional overflow unloading valve

Method used

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  • Integrated high-pressure large-flow proportional overflow type unloading valve
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  • Integrated high-pressure large-flow proportional overflow type unloading valve

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Embodiment Construction

[0044] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings, in which several embodiments of the present invention are shown, but the present invention can be realized in different forms, and is not limited to the text described On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0045] It should be noted that when an element is said to be "fixed on" another element, it can be directly on the other element or there can be an intervening element, and when an element is said to be "connected" to another element, it can be Directly connected to another element or possibly intervening elements at the same time, the terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

[0046] Unless otherwise defined, all technical and scien...

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Abstract

The invention provides an integrated high-pressure large-flow proportional overflow type unloading valve, which comprises a valve body, and a plug-in one-way valve, an unloading main valve, an overflow pilot valve, a liquid inlet mechanism, a control piston mechanism and an electric-mechanical conversion mechanism which are arranged in the valve body. The system pressure impact generated when a high-pressure large-flow liquid supply system adopts a switch type unloading valve for unloading can be reduced; the service life of an unloading valve group is prolonged; proportional unloading of a pump station can be achieved; a control piston can achieve the rapid unloading function after proportional unloading; through the plug-in mounting type structural design, the one-way function, the unloading function and the overflow function are integrated; the size is compact; the structure is simple and reasonable; and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the field of high-pressure, large-flow, and high-water-based hydraulic components, in particular to an integrated high-pressure, large-flow proportional overflow unloading valve. Background technique [0002] At present, the technical difficulties faced by fully mechanized mining liquid supply technology are mainly reflected in two aspects: on the one hand, the liquid supply capacity is insufficient: large mining height work faces higher requirements on the liquid supply flow and pressure of the support liquid supply system. On the other hand, the precise control resolution of the liquid supply system is insufficient: automated and intelligent work faces increasingly higher and higher precision control requirements for the flow and pressure of the liquid supply system, in order to adapt to fast follow-up, straightness control and timely support Wait for the needs of the working face to be equipped with intelligent drives. At p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02
CPCF15B13/02F15B2013/004
Inventor 赵继云张晓春于鸣泉曹超黄笛王云飞
Owner CHINA UNIV OF MINING & TECH
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