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CN-224229764-U - High-pressure valve with pressure relief mechanism

CN224229764UCN 224229764 UCN224229764 UCN 224229764UCN-224229764-U

Abstract

The utility model provides a high-pressure valve with a pressure release mechanism, which comprises a high-pressure valve body, wherein a liquid inlet flange plate is arranged on the high-pressure valve body, a liquid outlet pipe is arranged on the side edge of the high-pressure valve body, a transition joint is arranged on the side edge of the high-pressure valve body, the transition joint is connected with a flexible buffer high-pressure transition connecting pipe, the flexible buffer high-pressure transition connecting pipe is connected with an anti-vibration damping high-pressure switching pipe, the anti-vibration damping high-pressure switching pipe is connected with the pressure release mechanism, a medium enters a valve core cavity through the liquid inlet flange plate to finish conveying, pressure is released through an active flow limiting pressure release and an emergency quick pressure release dual-path, vibration is attenuated by matching a flexible buffer pipe and a damping switching pipe, pressure release flow quantity is accurately controlled through a micro-channel integrated pressure release manifold and a flow meter during active pressure release, negative pressure cavitation of a pipeline is avoided, the medium directly enters a pressure release pipeline through the transition joint under a sudden overpressure working condition, the internal pressure of the valve body is reduced to a safe zone, and the risk of explosion of the valve is greatly reduced.

Inventors

  • HE ZHANGHUA
  • SHI WENBIN
  • WANG XIAN
  • HU AIQIN

Assignees

  • 温州市荣信科技有限公司

Dates

Publication Date
20260512
Application Date
20260416

Claims (10)

  1. 1. The utility model provides a take relief mechanism's high pressure valve, includes high pressure valve body (1), its characterized in that, be provided with feed liquor ring flange (2) on high pressure valve body (1), the side of high pressure valve body (1) is provided with drain pipe (3), the side of high pressure valve body (1) is provided with transition joint (4), transition joint (4) are connected with flexible buffering high pressure transition takeover (5), flexible buffering high pressure transition takeover (5) are connected with anti vibration damping high pressure switching pipe (6), anti vibration damping high pressure switching pipe (6) are connected with relief mechanism.
  2. 2. The high-pressure valve with the pressure relief mechanism according to claim 1, wherein the pressure relief mechanism is provided with an embedded pressure relief channel integrated pipe (7) and a micro-channel integrated pressure relief manifold (8), and the anti-vibration damping high-pressure switching pipe (6) is connected with the capacity-expansion pressure relief buffer cavity (10) through a pipeline.
  3. 3. The high-pressure valve with the pressure relief mechanism according to claim 2, wherein the capacity-expansion pressure-relief buffer cavity (10) is connected with a pressure-relief diffusion pipe (11), and a diffusion pipe switch wrench (12) is arranged on the pressure-relief diffusion pipe (11).
  4. 4. A high pressure valve with a pressure release mechanism according to claim 3, characterized in that the side of the high pressure valve body (1) is provided with a micro-channel integrated pressure release manifold (8), said micro-channel integrated pressure release manifold (8) being connected with an L-shaped tapping pipe (9).
  5. 5. The high-pressure valve with pressure release mechanism according to claim 4, characterized in that the L-shaped tapping pipe (9) is connected with a flowmeter (91).
  6. 6. The high-pressure valve with the pressure relief mechanism according to claim 5, wherein the outer side port of the anti-vibration damping high-pressure switching tube (6) is connected with an electromagnetic induction type pressure relief state feedback tube (13).
  7. 7. The high-pressure valve with the pressure release mechanism according to claim 6, wherein an anti-scaling drain hole (14) is arranged on the lower side of the high-pressure valve body (1), and the anti-scaling drain hole (14) is connected with a drain plug (141).
  8. 8. The high-pressure valve with the pressure release mechanism according to claim 7, wherein the liquid outlet pipe (3) is provided with a liquid outlet valve wrench (31).
  9. 9. A high pressure valve with pressure relief mechanism according to claim 8, characterized in that the high pressure valve body (1) is connected to a pressure measuring tube (15), the pressure measuring tube (15) being connected to a pressure gauge (16).
  10. 10. The high-pressure valve with the pressure relief mechanism according to claim 9, characterized in that a valve core flow cavity (17) is arranged in the high-pressure valve body (1), and a sealing gasket (18) is arranged at the sealing position of the valve core flow cavity (17) and a valve cover (19).

Description

High-pressure valve with pressure relief mechanism Technical Field The utility model relates to the field of valves, in particular to a high-pressure valve with a pressure release mechanism. Background The valve is used as a key control and safety element in a high-pressure fluid conveying and controlling system, the performance of the valve is directly related to the running stability and safety of the whole system, and the application number is 201320886951.4. The valve comprises a driving device, a valve shaft, a sealing sleeve, a valve body and a sealing ring, wherein the driving device is arranged on the valve body, a through hole for the valve shaft to pass through is formed in the valve body, a sealing groove for accommodating the sealing sleeve is formed in the side wall of the through hole, and an accommodating groove for accommodating the sealing ring is formed in the sealing sleeve. According to the valve, the valve shaft can be self-sealed by the first sealing ring, and the sealing effect is better. However, the existing valve has some defects in the use process and needs to be improved, and firstly, the existing valve lacks a pressure relief structure and lacks the regulation and control capability on the pressure relief process. The prior art is difficult to realize flow control in the pressure release process, and the pressure release efficiency and the pressure stable transition requirement cannot be considered. Secondly, under extreme working conditions such as sudden overpressure, the response speed, the circulation capacity and the pressure release path of the existing valve can not rapidly reduce the pressure to a safe range, and the risk of pipe explosion and even equipment damage exists. Meanwhile, high-pressure shock waves generated in the early stage of pressure relief and pipeline vibration caused by high-frequency pressure fluctuation in the subsequent pressure relief process are easy to accumulate fatigue stress at weak parts such as welding seams, flanges or joints, and structural failure or leakage can be caused under long-term operation. In addition, the existing valve generally neglects the problem of impurity deposition in structural design. In the working condition of containing particles, sediments or scale-prone media, impurities are easy to accumulate at the bottom of a valve core flowing cavity, so that the valve core is blocked, the action is delayed and even completely fails, and the connecting part in the current pressure relief pipeline lacks an effective buffer structure for pressure pulse and vibration, so that the reliability of the valve is affected. Therefore, a high pressure valve with a pressure relief mechanism is provided. Disclosure of utility model The utility model aims to solve the problems of the prior art. In order to achieve the aim, the high-pressure valve with the pressure release mechanism comprises a high-pressure valve body, wherein a liquid inlet flange plate is arranged on the high-pressure valve body, a liquid outlet pipe is arranged on the side edge of the high-pressure valve body, a transition joint is arranged on the side edge of the high-pressure valve body and connected with a flexible buffer high-pressure transition connecting pipe, the flexible buffer high-pressure transition connecting pipe is connected with an anti-vibration damping high-pressure switching pipe, the anti-vibration damping high-pressure switching pipe is connected with the pressure release mechanism, an external high-pressure liquid supply pipeline is in butt joint with the liquid inlet flange plate to complete sealing communication, a high-pressure medium enters a valve core flowing cavity in the high-pressure valve body, and an operator controls the on-off and the opening of the liquid outlet pipe through a liquid outlet valve wrench to complete quantitative conveying of the medium. The joint surface of the valve core flow cavity and the valve cover realizes high-pressure sealing through the sealing gasket, and medium leakage from a gap of the valve cover is avoided. The pressure measuring tube collects the pressure in the valve core flow cavity in real time, and the current pressure value is visually displayed through the pressure meter, so that data support is provided for pressure management. According to the technical scheme, the pressure release mechanism is provided with an embedded pressure release channel integrated pipe and a micro-channel integrated pressure release manifold, the anti-vibration damping high-pressure switching pipe is connected with the capacity-expansion pressure release buffer cavity through a pipeline, when the pressure gauge monitors that the pressure is close to an early warning threshold value, an active pressure release process is started, high-pressure medium enters the micro-channel integrated pressure release manifold through a side interface of a high-pressure valve body, after being split by the L-shaped tapping pipe, a part of m