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A Valve Based on Rigid-Flexible Composite Coating and Non-smooth Spatial Disturbance Microstructure

A rigid-flexible compound, non-smooth technology, applied in the direction of fluid flow, fluid pressure actuators, servo motor components, etc., can solve problems such as erosion problems that are difficult to solve, achieve reduced erosion wear, significant noise reduction effects, and lighten The effect of cavitation

Active Publication Date: 2020-12-04
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The erosion problem in practical engineering has been difficult to solve

Method used

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  • A Valve Based on Rigid-Flexible Composite Coating and Non-smooth Spatial Disturbance Microstructure
  • A Valve Based on Rigid-Flexible Composite Coating and Non-smooth Spatial Disturbance Microstructure
  • A Valve Based on Rigid-Flexible Composite Coating and Non-smooth Spatial Disturbance Microstructure

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Embodiment 1

[0018] A valve based on a rigid-flexible composite coating and a non-smooth space spoiler microstructure, which includes a water inlet 1, a valve body 2, a throttle port 3, a valve core 4, a jet drag reduction structure 5, and a non-smooth groove structure 6 , there is a jet drag reducing structure 5 on the spool 4, the side of the spool 4 facing the water inlet 1 is slotted, the side of the spool 4 is non-linearly arranged with jet holes communicating with the groove, the inner surface of the valve body 2 and the spool The surface of 4 is a non-smooth groove structure 6, and the rigid-flexible composite coating is installed distributedly on the non-smooth groove structure 6, and the non-smooth structure and coating technology are used to reduce the damage of components caused by erosion and wear, and reduce the degree of valve failure; A non-linear arrangement of jet holes is established on the valve seat to change the pressure distribution by maximizing flow disturbance, redu...

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Abstract

The invention discloses a valve based on a rigid-flexible composite coating and a non-smooth space turbulent flow microstructure, and belongs to the technical field of valves. The valve structurally comprises a water inlet, a valve body, a throttling opening, a valve element, a jet flow anti-drag structure and a non-smooth groove structure. The jet flow anti-drag structure is arranged on the valveelement, and a groove is formed in the face, exactly facing the water inlet, of the valve element. Jet flow holes communicating with the groove are nonlinearly distributed in the side face of the valve element, and the inner surface of the valve body and the surface of the valve element are of the non-smooth groove structure, and a rigid-flexible composite coating is mounted on the non-smooth groove structure in a distributed manner. According to the valve, erosive wear can be reduced, cavitation can be relieved, and the valve is suitable for noise control of hydraulic control elements of various overflow valve structural styles, novel in theory, simple in structure and remarkable in noise reducing effect.

Description

technical field [0001] The invention belongs to the technical field of valves, and in particular relates to a valve based on a rigid-flexible composite coating and a non-smooth space disturbing microstructure. Background technique [0002] Noise and component wear in hydraulic systems are largely related to cavitation and cavitation. The study of cavitation and cavitation in hydraulic systems is of great practical significance in reducing noise and prolonging component life. After the pressure of the fluid medium drops to a certain critical value, the small bubbles formed by the gas will expand rapidly and form obvious bubbles. The bubbles will be destroyed or shrunk sharply after entering the high-pressure area with the liquid flow, and the space they originally occupied will instantly form a vacuum. The liquid rushes to the vacuum area at high speed, creating a localized hydraulic shock. When a hydraulic shock occurs, the kinetic energy of the high-speed moving liquid pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02F15D1/00
CPCF15B13/021F15D1/00
Inventor 徐贺赵梓彤王海行矫立业
Owner HARBIN ENG UNIV
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