Seawater corrosion resistant pressure-balanced valve

A seawater-resistant, balance valve technology, applied in the direction of balance valves, valve details, safety valves, etc., can solve the problems of valve core damage, easy leakage, and drop in opening pressure accuracy, and achieve small changes in opening pressure and pressure overshoot Small and easy to install

Active Publication Date: 2014-08-13
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first type of pressure balance valve is sealed with a cone surface. The spring is corroded by seawater after working for a long time in the seawater medium, and it is prone to leakage.
The second type

Method used

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  • Seawater corrosion resistant pressure-balanced valve
  • Seawater corrosion resistant pressure-balanced valve
  • Seawater corrosion resistant pressure-balanced valve

Examples

Experimental program
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Example Embodiment

[0020] Hereinafter, the present invention will be described in more detail with examples in conjunction with the accompanying drawings:

[0021] Combine Figure 1~4 , The seawater corrosion-resistant pressure balance valve of the present invention includes a valve body 3, and a valve seat 4, an O-ring 6, a sealing sleeve 7, an O-ring 8, a sealing sleeve 9, and an O-shaped Ring 25, rear valve seat 10, fixing nut 22.

[0022] One end of the valve seat is used as a water inlet. The valve seat is a combined valve seat and includes a valve seat 4 and an O-ring 6. One end of the valve seat is machined with a taper thread, and a taper thread is machined where the water inlet is vertical, a stepped hole is machined inside, and one end is the water inlet P. The valve seat 4 is seated in the valve body 3, the O-ring 6 is close to the valve seat 4, and the sealing sleeve 7 is tightly abutted on the O-ring 6 and tightly abutted with the O-ring 8. The sealing sleeve 9 tightly abuts the O-rin...

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PUM

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Abstract

The invention aims at providing a seawater corrosion resistant pressure-balanced valve. The seawater corrosion resistant pressure-balanced valve comprises a valve seat, a valve core, an oil bag, a spring, a snap ferrule type three-way joint and a conical threaded pipe joint, wherein the slide valve type valve core and the valve seat form a radial seal through an O-shaped ring; the valve seat is seated inside a valve body, one end of the valve seat serves as a water inlet, and the other end of the valve seat and the O-shaped ring form a seal; an inlet of the valve is connected to the valve body through the conical threaded pipe joint; the opening of the pressure-balanced valve is realized in a manner that the pressure of an inlet of a slide valve is higher than that of a balancing port of the slide valve; the valve core of the pressure-balanced valve adopts a slide valve type direct-acting type structure, so that the pressure-balanced valve is high in responding speed and small in pressure overshoot. According to the seawater corrosion resistant pressure-balanced valve, the structure is novel and compact, the controllability of water charging/discharging of a system can be guaranteed, the vibration of the valve core is relatively low, the pressure of the inlet and an outlet is stable, the spring is immersed into oil of the oil bag, and thus, the seawater corrosion prevention for the spring is realized; the seawater corrosion resistant pressure-balanced valve has the advantages of low cost, easiness in mounting and the like.

Description

technical field [0001] The invention relates to a valve, in particular to a balance valve for underwater operation. Background technique [0002] With the deepening of human development and utilization of the ocean, the development of water hydraulic systems is getting better and better, which puts forward higher requirements for the structure and function of underwater manipulators. The seawater hydraulic buoyancy adjustment system has been successfully applied to underwater vehicles, and its working principle is as follows: figure 1 shown. according to figure 1 It can be obtained that the operation of the seawater pump in the buoyancy adjustment system controls the flow direction of the water medium through the reversing valve, so as to realize the filling and drainage of the pressure-resistant water tank in the buoyancy adjustment system, so as to change the weight of seawater in the water tank, and realize the water flow of the underwater vehicle. buoyancy. [0003] ...

Claims

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Application Information

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IPC IPC(8): F16K17/04F16K47/00
CPCF16K17/04F16K47/00
Inventor 张铭钧赵勇赵文德王玉甲张杰孙松海王得成
Owner HARBIN ENG UNIV
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