Explosion valve capable of detecting output signal

Abstract

According to the explosion valve capable of detecting the output signal, the explosion protection function and the signal feedback function are integrated. The valve is composed of a valve body assembly, a rupture disk and a detection assembly. The rupture disk is made of an AL3003 material, a specific blasting cracking area and blasting pressure are designed, and safe pressure relief during overpressure is guaranteed. The detection assembly monitors the state of the rupture disk in real time through cooperation of the magnetic induction switch and the magnetic body. When the pressure in the container exceeds a set value, the rupture disk is ruptured, the magnetic body moves along with the rupture disk, connection with the magnetic induction switch is disconnected, an alarm signal is sent to a control system in real time, and automatic shutdown protection is achieved. The valve body assembly is reasonable in design and convenient to install and maintain. According to the explosion valve, the safety of the pressure container is improved, instant feedback of pressure abnormity is achieved, and the explosion valve is suitable for high-risk industries such as pharmacy and chemical engineering and has remarkable safety benefits and practical value.

Description

Technical Field

[0001] The present invention relates to the field of pressure safety control devices, and in particular to a bursting valve with detectable output signal that integrates bursting valve function and state detection function, and is suitable for container systems that require precise monitoring and response to internal pressure changes, such as liquid medicine tanks. Background Art

[0002] In the chemical and pharmaceutical industries, overpressure protection of liquid storage tanks and other containers is crucial. Although traditional burst valves can effectively prevent container rupture due to excessive pressure, they often lack instant detection and signal feedback mechanisms, and cannot promptly notify operators or automatic control systems to take emergency measures.

[0003] The patent with application number CN200410155202.X belongs to the technical field of pressure vessel safety equipment and is a safety pressure relief device for fluid overpressure. It includes a bursting disc fixed edge, a bursting disc rigidity zone, a bursting disc connection zone, a bursting cracking zone, a bursting disc ungrooved zone, and a weakening groove. A bursting disc rigidity zone is provided between the bursting disc fixed edge and the bursting disc connection zone to limit the caliber of the bursting disc during the bursting disc blasting process. Through the bursting disc fixed edge, the bursting disc is in direct or indirect contact with the edge of the pressure relief hole of the protected container or the pressure relief pipe of the protected container, and can be connected to the protected container by welding, threaded connection, bolt clamping and other methods. It overcomes the defects of the existing bursting disc clamp that the space available for installation is limited, and prevents the bursting disc from generating fragments after the blasting, blocking the flow channel or causing harm to personnel and equipment. The bursting disc has a simple structure and is safe and practical.

[0004] However, the above patented technology cannot send an alarm signal to the outside as soon as the bursting disc ruptures, prompting the entire production line to stop production and eliminate subsequent safety hazards. Therefore, it is particularly important to develop a new bursting valve that can achieve safe pressure relief and send an alarm signal immediately. Summary of the invention

[0005] The object of the present invention is to provide a burst valve with detectable output signal to solve the problems raised in the above background technology:

[0006] (1) How to realize the function of sending signals to the external control system at the same time as blasting, thereby improving the response speed and safety of the pressure control system.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A bursting valve capable of detecting an output signal;

[0009] Including valve body assembly, bursting disc and detection assembly;

[0010] The bursting disc comprises a flange body and a bursting and splitting disc body, a through hole is opened in the middle of the flange body, the area inside the through hole of the flange body is the bursting and splitting area, the bursting and splitting disc body completely covers the bursting and splitting area, the upper side of the bursting and splitting area is the pressure relief side, and the edge of the bursting and splitting disc body is fixedly connected through the flange body;

[0011] The detection assembly includes a magnetic induction switch, a magnetic body and a connecting spring, one end of the connecting spring is fixedly connected to the flange body of the bursting disc, the other end of the connecting spring extends into the bursting cracking area and is fixedly connected to the magnetic body, the magnetic body is on the pressure relief side of the bursting disc, and there is a gap between the magnetic body and the bursting cracking body of the bursting disc;

[0012] The valve seat assembly comprises an upper fixed valve seat and a lower fixed valve seat, the upper fixed valve seat and the lower fixed valve seat are detachably connected, an upper pressure relief hole is provided in the upper fixed valve seat corresponding to the bursting cracking area of ​​the bursting disc, a mounting hole is provided inside the upper fixed valve seat, the mounting hole is communicated with the upper pressure relief hole, the magnetic induction switch of the detection assembly is installed in the mounting hole of the upper fixed valve seat, a lower pressure relief hole is provided in the bursting cracking area of ​​the lower fixed valve seat corresponding to the bursting disc, and an assembly groove that fits the bursting disc flange body is provided on the upper end surface of the lower fixed valve seat;

[0013] After the upper fixed valve seat of the valve seat assembly is matched with the lower fixed valve seat, the bursting disc is fixedly installed in the chamber formed between the assembly groove of the lower fixed valve seat and the lower end surface of the upper fixed valve seat;

[0014] In the initial state, the magnetic induction switch of the detection component is aligned with the magnetic body, and the magnetic induction switch cooperates with the magnetic body.

[0015] Based on the above technical solution, the present invention can also be improved as follows.

[0016] Furthermore, the bursting fragment body of the bursting fragment is provided with a spherical crown-shaped convex surface on the pressure relief side.

[0017] Furthermore, the blasting fragment body of the blasting fragment is made of AL3003 material.

[0018] Furthermore, the detection component also has a supporting spring, the lower end of which is fixedly connected to the flange of the bursting disc, the upper end of which extends into the bursting cracking area, and in the initial state, the upper part of the supporting spring is below the magnetic body.

[0019] Furthermore, the blasting cracking area of ​​the blasting cracking piece body of the blasting piece is 490.625mm 2 The design bursting pressure of the blasting fragments is 0.4MPa.

[0020] Furthermore, the bursting disc further comprises a hand-held portion, one end of which is fixedly connected to the flange body, and the other end of which extends in a direction away from the blasting cracking area.

[0021] With such a structure, in the initial state, when the pressure in the medicine tank is lower than the designed bursting pressure, the magnetic induction switch and the magnetic body remain aligned and work normally, the supporting spring is stably supported, and the medicine tank operates normally.

[0022] When the pressure in the medicine liquid tank exceeds the designed bursting pressure, the bursting fragments rupture, driving the connecting spring and the magnetic body to swing, and the magnetic body is disconnected from the magnetic induction switch. The magnetic induction switch then sends a bursting signal to the control electrical cabinet of the medicine liquid tank, triggering the shutdown protection mechanism of the entire medicine liquid production line.

[0023] The beneficial effects of the detectable output signal burst valve are:

[0024] (1) By integrating the burst valve and signal detection function, instant feedback of pressure abnormalities is achieved, improving the safety and automation level of the production line.

[0025] (2) The design of the blasting disc and detection components ensures both the reliability of the blasting and the accuracy of signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view of an embodiment of the bursting valve with detectable output signal.

[0027] Figure 2 It is a sectional view of the main view of the embodiment of the bursting valve with detectable output signal.

[0028] Figure 3 yes Figure 2 Enlarged view of part A.

[0029] Figure 4 It is a front view of a bursting disc, a magnetic body, a supporting reed, and a connecting reed in an embodiment of the bursting valve capable of detecting output signals.

[0030] Figure 5 yes Figure 4 Top view of the .

[0031] Description of the numbers in the figure:

[0032] Bursting disc 100; flange body 110; bursting split disc body 120; hand-held part 130; magnetic induction switch 210; magnetic body 220; supporting reed 240; connecting reed 230; upper fixed valve seat 310; upper pressure relief hole 311; mounting hole 312; lower fixed valve seat 320; lower pressure relief hole 321; assembly groove 322. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0034] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementations.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] See also Figures 1 to 5 .

[0037] The bursting valve capable of detecting output signals comprises a valve body assembly, a bursting disc 100 and a detection assembly.

[0038] The blasting disc 100 includes a flange body 110, a blasting and splitting disc body 120 and a hand-held part 130. A through hole is opened in the middle of the flange body 110. The area inside the through hole of the flange body 110 is the blasting and splitting area. The blasting and splitting disc body 120 completely covers the blasting and splitting area. The upper side of the blasting and splitting area is the pressure relief side. The blasting and splitting disc body 120 is provided with a spherical crown convex surface toward the pressure relief side. The edge of the blasting and splitting disc body 120 is sealed and fixed to the flange body 110. The blasting and splitting disc body 120 of the blasting disc 100 is made of AL3003 material. The blasting and splitting area of ​​the blasting and splitting disc body 120 is 490.625mm 2 The designed blasting pressure of the blasting and cracking sheet body 120 is 0.4 MPa. One end of the hand-held part 130 is riveted and fixed to the flange body 110, and the other end of the hand-held part 130 extends away from the blasting and cracking area. The setting of the hand-held part 130 is convenient for installation and maintenance, and improves the usability of the equipment.

[0039] The detection component includes a magnetic induction switch 210, a magnetic body 220, a supporting spring 240 and a connecting spring 230. One end of the connecting spring 230 is welded and fixed to the flange body 110 of the bursting piece 100, and the other end of the connecting spring 230 extends into the bursting cracking area and is fixed to the magnetic body 220. The magnetic body 220 is on the pressure relief side of the bursting piece 100. There is a gap between the magnetic body 220 and the bursting cracking piece body 120 of the bursting piece 100. The lower end of the supporting spring 240 is welded and fixed to the flange body 110 of the bursting piece 100, and the upper end of the supporting spring 240 extends into the bursting cracking area.

[0040] The valve seat assembly includes an upper fixed valve seat 310 and a lower fixed valve seat 320, and the upper fixed valve seat 310 and the lower fixed valve seat 320 are detachably connected by bolts. The upper fixed valve seat 310 is provided with an upper pressure relief hole 311 corresponding to the bursting cracking area of ​​the bursting disc 100, and an installation hole 312 is provided inside the upper fixed valve seat 310, and the installation hole 312 is communicated with the upper pressure relief hole 311. The magnetic induction switch 210 of the detection assembly is installed in the installation hole 312 of the upper fixed valve seat 310, and the lower fixed valve seat 320 is provided with a lower pressure relief hole 321 corresponding to the bursting cracking area of ​​the bursting disc 100, and the upper end surface of the lower fixed valve seat 320 is provided with an assembly groove 322 that fits the flange body 110 of the bursting disc 100.

[0041] After the upper fixed valve seat 310 and the lower fixed valve seat 320 of the valve seat assembly are matched, the bursting disc 100 is fixedly installed in the chamber formed between the assembly groove 322 of the lower fixed valve seat 320 and the lower end surface of the upper fixed valve seat 310;

[0042] The detectable output signal bursting valve in this embodiment is installed on the liquid medicine tank. When the pressure in the liquid medicine tank is lower than the designed bursting pressure of the bursting splitting piece 120 (this is the initial state), the magnetic sensing switch 210 of the detection component is aligned with the magnetic body 220, the magnetic sensing switch 210 cooperates with the magnetic body 220, and the upper part of the supporting spring 240 is under the magnetic body 220, and the liquid medicine tank is used normally.

[0043] When the pressure in the medicine liquid tank is greater than the designed bursting pressure of the bursting rupture piece 120, the bursting rupture piece 120 of the bursting piece 100 bursts, and the bursting rupture piece 120 drives the connecting spring 230 and the magnetic body 220 to swing, and the magnetic body 220 moves and disconnects from the magnetic induction switch 210, and the magnetic induction switch 210 sends a bursting signal to the control electrical cabinet of the medicine liquid tank, so that the entire medicine liquid production line is shut down.

[0044] The above is only one embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the principle of the present invention, and these should also be regarded as belonging to the protection scope of the present invention.

Claims

1. A bursting valve with detectable output signal, characterized by: It comprises a valve body assembly, a bursting disc (100) and a detection assembly; The bursting disc (100) comprises a flange body (110) and an explosive splitting disc body (120); a through hole is formed in the middle of the flange body (110); the area inside the through hole of the flange body (110) is an explosive splitting area; the explosive splitting disc body (120) completely covers the explosive splitting area; the upper side of the explosive splitting area is a pressure relief side; and the edge of the explosive splitting disc body (120) is fixedly connected via the flange body (110); The detection component comprises a magnetic induction switch (210), a magnetic body (220) and a connecting spring (230); one end of the connecting spring (230) is fixedly connected to the flange body (110) of the bursting disc (100); the other end of the connecting spring (230) extends into the bursting cracking area and is fixedly connected to the magnetic body (220); the magnetic body (220) is located on the pressure relief side of the bursting disc (100); and a gap is provided between the magnetic body (220) and the bursting cracking disc body (120) of the bursting disc (100); The valve seat assembly comprises an upper fixed valve seat (310) and a lower fixed valve seat (320), the upper fixed valve seat (310) and the lower fixed valve seat (320) being detachably connected, an upper pressure relief hole (311) corresponding to the bursting cracking area of ​​the bursting disc (100) is provided on the upper fixed valve seat (310), a mounting hole (312) is provided inside the upper fixed valve seat (310), the mounting hole (312) is communicated with the upper pressure relief hole (311), the magnetic induction switch (210) of the detection assembly is installed in the mounting hole (312) of the upper fixed valve seat (310), a lower pressure relief hole (321) corresponding to the bursting cracking area of ​​the bursting disc (100) is provided on the lower fixed valve seat (320), and an assembly groove (322) that fits the flange body (110) of the bursting disc (100) is provided on the upper end surface of the lower fixed valve seat (320); After the upper fixed valve seat (310) and the lower fixed valve seat (320) of the valve seat assembly are matched, the bursting disc (100) is fixedly installed in a chamber formed between the assembly groove (322) of the lower fixed valve seat (320) and the lower end surface of the upper fixed valve seat (310); In the initial state, the magnetic sensing switch (210) of the detection component is aligned with the magnetic body (220), and the magnetic sensing switch (210) cooperates with the magnetic body (220).

2. The bursting valve with detectable output signal according to claim 1, characterized in that: The bursting and splitting piece body (120) of the bursting piece (100) is provided with a spherical crown-shaped convex surface on the pressure relief side.

3. The bursting valve with detectable output signal according to claim 1, characterized in that: The blasting split piece body (120) of the blasting piece (100) is made of AL3003 material.

4. The bursting valve with detectable output signal according to claim 1, characterized in that: The detection component also supports a spring sheet (240), the lower end of which is fixedly connected to the flange body (110) of the bursting disc (100), and the upper end of which extends into the bursting cracking area. In an initial state, the upper part of the supporting spring sheet (240) is located below the magnetic body (220).

5. The bursting valve with detectable output signal according to claim 1, characterized in that: The blasting cracking area of ​​the blasting cracking piece body (120) of the blasting piece (100) is 490.625 mm 2 The designed bursting pressure of the bursting splitting piece (120) is 0.4 MPa.

6. The bursting valve with detectable output signal according to claim 1, characterized in that: The bursting disc (100) further comprises a hand-held portion (130), one end of which is fixedly connected to the flange body (110), and the other end of which extends in a direction away from the bursting cracking area.

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