Pressure safety valve

A safety valve and pressure technology, applied in the field of pressure valves, can solve the problems of low pressure accuracy and inconvenient low pressure adjustment.

Inactive Publication Date: 2007-11-28
范绍魁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a pressure safety valve, which solves the technical problems of low pressure accuracy and inconvenient low pressure adjustment when the valve is opened with a simple structure

Method used

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  • Pressure safety valve

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Embodiment Construction

[0009] A pressure safety valve, as shown in the accompanying drawings, includes a valve body 1, the open end of the valve body 1 is threadedly connected to a valve cover 2, and the valve body 1 and the valve cover 2 form a closed cavity; The inlet channel 4 communicates with the cavity, and the outlet channel 5 also communicates with the cavity. The control device for controlling the connection / disconnection of the inlet flow path 4 and the outlet flow path 5 is installed in the cavity, and the control device includes a valve pad 3 and a force applying device that can apply force to the valve pad 3 , the valve pad 3 abuts against the outlet channel 5 at the opening of the cavity, and the opening direction of the inlet channel 4 in the cavity corresponds to the moving direction of the valve pad 3 .

[0010] The valve pad 3 includes a control part located in the central area for closing the opening of the flow path, a sealing part located in the edge area and clamped between the...

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PUM

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Abstract

The invention discloses a pressure safety valve, comprising valve body, valve cover set on the port end of said valve body, hollow cavity formed by said valve body and the valve cover, flow inlet path and flow outlet path connected with said hollow cavity respectively, and control device set in the hollow cavity to control connection and disconnection of said flow inlet path and flow outlet path. The control device comprises a valve pad and force device, which can apply force to the valve pad. The valve pad is attached to the port end of flow outlet path in the hollow cavity. The opening direction of said flow inlet path in said hollow cavity is corresponding with the moving direction of said valve pad. By controlling flow outlet path the valve pad realizes connection and disconnection of flow inlet path and flow outlet path. Because the valve pad can be made as large as possible in the range the hollow cavity allows, the force on valve pad can be enlarged so that pressure accuracy of pressure safety valve opening can be improved greatly.

Description

technical field [0001] The invention relates to the technical field of pressure valves, in particular to a safety valve which is connected to a sealed container and can automatically open the pressure relief when the pressure in the sealed container reaches a set value. Background technique [0002] The water contained in the closed space of the water heater will generate steam after being heated. When the air pressure is too high, the joints of various components are prone to leakage. Especially the solar water heater, because it receives solar energy through the glass tube that is coated with heat-receiving film, so too high air pressure can make the glass tube burst, causing irreparable damage. A known pressure safety valve, which includes a valve body and a valve cover, a water inlet passage and a water outlet passage respectively communicate with the closed cavity formed by the valve body and the valve cover; A control device for connecting / disconnecting the flow path ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/04
Inventor 范绍魁
Owner 范绍魁
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