Constant-specific-pressure large-flow safety valve

A high-flow safety valve, specific pressure technology, applied in the field of safety valves, to achieve the effect of improving stability, good opening and closing performance, and high reliability

Active Publication Date: 2021-03-26
BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For this reason, the embodiments of the present invention propose a constant specific pressure and large flow safety valve, which can reduce the problem of fluctuations in sealing force caused by liquid pressure fluctuations, and can improve the constant specific pressure and large flow rate. Stability and reliability of the flow safety valve at work

Method used

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Embodiment Construction

[0034] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0035] Refer below Figure 1 to Figure 4 A constant pressure high flow safety valve according to an embodiment of the present invention is described.

[0036] Such as figure 1 and Figure 4 As shown, the constant pressure high flow safety valve includes a valve body 1 , a floating valve seat 3 and a valve core assembly 2 . The valve body 1 has a valve chamber 14, the first end of the valve body 1 (such as figure 1 The left end of the center) is provided with a liquid inlet 111 communicated with the valve chamber 14, the peripheral wall of the valve body 1 is provided with a liquid passage hole 112 communicated with the valve chamber 14, and the inner peripher...

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PUM

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Abstract

The invention discloses a constant-specific-pressure large-flow safety valve. The constant-specific-pressure large-flow safety valve comprises a valve body, a floating valve seat and a valve element assembly; a valve cavity is formed in the valve body, a liquid inlet communicating with the valve cavity is formed in a first end of the valve body, a liquid passing hole communicating with the valve cavity is formed in the peripheral wall of the valve body, and a first boss is arranged on the inner peripheral face of the valve body; the floating valve seat is arranged in the valve cavity in a matched mode and can move in the axial direction of the valve body, the floating valve seat is provided with a floating cavity, one end of the floating cavity communicates with the valve cavity, and the other end of the floating cavity can be disconnected from and communicate with the valve cavity; and the valve element assembly is arranged in the valve cavity in a matched mode and located between thefloating valve seat and a second end of the valve body, and the valve element assembly can move in the axial direction of the valve body so as to achieve disconnection and communication of the otherend of the floating cavity and the valve cavity. According to the constant-specific-pressure large-flow safety valve, the problem that sealing force fluctuates along with fluctuation of liquid pressure can be solved, stability is good, and reliability is high.

Description

technical field [0001] The invention relates to the technical field of safety valves, in particular to a constant pressure and large flow safety valve. Background technique [0002] The safety valve is an automatic pressure relief device driven by medium pressure. It is mostly used in the lower chamber of the column, the upper and lower chambers of the balance jack, the piston chamber or piston rod chamber of the push jack, etc. [0003] With the large-scale implementation and development of fully mechanized hydraulic supports in coal mines, the performance of the safety valve directly affects the normal operation of the hydraulic support and the safety of personnel, especially for the service life and reliability of the safety valve. When the pressure from the top of the hydraulic support causes a passive force, the safety valve needs to unload in a short time in a timely, sufficient and stable manner under high pressure to ensure the service life of the support and the saf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/04F16K17/164F16K1/36F16K1/42F16K27/12F16K47/02E21D15/44E21D23/16
CPCF16K17/044F16K17/0493F16K17/0466F16K17/164F16K27/12F16K1/36F16K47/023E21D15/44E21D23/16
Inventor 周如林黄园月卢海承刘志强耿彦召
Owner BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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