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Large-flow high-pressure one-way valve for ship

A high-pressure check valve and high-flow technology, which is applied in the field of hydraulic valve parts, can solve the problems of high energy loss and low efficiency of the flowing medium, and achieve the effects of improving flow efficiency, reducing energy loss, and ensuring stability

Active Publication Date: 2018-09-14
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of high energy loss and low efficiency of the flow medium in the prior art, and provide a marine high-flow high-pressure check valve that can effectively reduce the energy loss of the flow medium

Method used

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  • Large-flow high-pressure one-way valve for ship

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Embodiment 1

[0051] see Figure 1 to Figure 4 , a marine high-flow high-pressure one-way valve, including a valve seat 1, a spring seat 2, a valve core 3 and a spring 4 located in the inner cavity 11 of the valve seat 1, and the outer contour of the valve seat 1 is composed of two groups of structures A circular structure formed by symmetrical connection of consistent arc groups 14. The arc groups 14 include sequentially connected No. 1 concave arc 141, No. 1 convex arc 142, No. 2 concave arc 143, and No. 2 convex arc. Arc 144, No. 3 concave arc 145, No. 3 convex arc 146, the radius of curvature of the No. 1 concave arc 141 is 20-22 mm, the No. 1 convex arc 142, No. 3 convex arc The radius of curvature of the line 146 is 10-12 mm, the radius of curvature of the No. 2 concave arc 143 and No. 3 concave arc 145 is 7.5-8.5 mm, and the radius of curvature of the No. 2 convex arc 144 is 24 mm. ~28mm, and the No. 1 concave arc 141, No. 1 convex arc 142, No. 2 concave arc 143, No. 2 convex arc 14...

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Abstract

A large-flow high-pressure one-way valve for a ship comprises a valve seat, a spring seat matched with the outlet end of an inner cavity of the valve seat, a valve core located in the inner cavity, and a spring located in the inner cavity; the valve core comprises a guide rod and a frustum valve core which are arranged coaxially; the frustum valve core comprises a valve core head, a sealing section, a cylindrical flow guide section and an inverted frustum flow guide section which are coaxially connected in sequence; the valve core head is of a conical structure, and the included angle betweenthe generatrix of the valve core head and the top face of the sealing section is smaller than or equal to 5 degrees; the sealing section is of a circular frustum structure, and the contour of the sideface of the sealing section is in sealing fit with a sealing conical face arranged at the inlet end of the inner cavity; the small-diameter end of the inverted frustum flow guide section is fixedly connected with one end of the guide rod, and the outer wall of the other end of the guide rod is in inserting fit with the inner wall of a guide channel formed in the spring seat; and the two ends of the spring sleeve the guide rod and the spring seat correspondingly. Through the design, the energy losses of flow media are effectively decreased, and in addition, the large flow capacity is achievedwith the small outline dimension.

Description

technical field [0001] The invention belongs to the technical field of hydraulic valve parts, and in particular relates to a large-flow high-pressure one-way valve for ships. Background technique [0002] With the trend of large-scale ships, the overall hydraulic system of the ship is becoming more and more complex. As a directional control valve, the check valve is usually placed between the oil outlet of the hydraulic pump and the different oil circuits of the hydraulic system to prevent the flow of oil. The reverse flow damages the hydraulic pump and prevents the oil circuit of the system from interfering with each other. It is required to have the characteristics of large flow capacity, low opening pressure, small flow loss, reliable reverse seal, and sensitive action. [0003] Existing high-pressure check valves mainly adopt steel ball and cone valve designs. The single steel ball check valve uses floating steel balls to form a seal with the valve seat. Because there is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/02
CPCF16K15/025
Inventor 司小冬吴建磊王欣
Owner WUHAN MARINE MACHINERY PLANT
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