A blast relief plate with opening and closing feedback function

Abstract

The application relates to a kind of explosion venting plate with opening and closing feedback function, and relates to the field of explosion venting device.It includes the explosion venting membrane for being assembled at explosion venting port, the explosion venting membrane is composed of fixed part and tear part, and pre-tear seam is arranged between the fixed part and the tear part;Detector is installed on the fixed part of the explosion venting membrane, and signal line is connected to the detector;Signal line is set to generate corresponding electrical signal through its on-off state, and the electrical signal is used for transmission to controller;The tear part of the explosion venting membrane is connected with the signal line, and when the explosion venting membrane is torn from the pre-tear seam under the action of pressure, the signal line is disconnected to generate electrical signal feedback.The application can help operator to know the opening and closing state of the explosion venting plate in time.

Description

Technical Field

[0001] This application relates to the field of explosion relief devices, and in particular to an explosion relief plate with opening and closing feedback function. Background Technology

[0002] In many fields such as industrial production, warehousing, and energy, numerous buildings or equipment are equipped with explosion vents to cope with potential internal explosions and other dangerous situations. When the internal pressure rises sharply, the explosion vent device can open in time to release the internal pressure, thereby protecting the building or equipment from severe damage and ensuring the safety of personnel.

[0003] Traditional explosion venting devices, such as common explosion relief panels, typically only have the function of automatically opening to release pressure when it reaches a certain level. However, in practical applications, simply fulfilling the explosion venting function is far from sufficient. After an explosion or other hazardous event, relevant personnel may not be able to promptly and accurately determine whether the explosion venting device has been activated. This could lead to misjudgment of the situation on-site, delaying subsequent emergency response measures, such as further inspection of the accident site, equipment repair and restoration, etc. In the production workshops of some large chemical enterprises, if it is not possible to promptly confirm whether the explosion relief panel has been activated, rescue personnel may enter the site rashly without understanding the true situation, increasing the risk of secondary accidents. Utility Model Content

[0004] To facilitate operators in understanding the opening and closing status of the explosion relief plate in a timely manner, this application provides an explosion relief plate with opening and closing feedback function.

[0005] The explosion relief plate with opening and closing feedback function provided in this application adopts the following technical solution: An explosion relief plate with opening and closing feedback function includes an explosion relief membrane for mounting at the explosion relief port. The explosion relief membrane is composed of a fixing part and a tearing part, and a pre-tear seam is provided between the fixing part and the tearing part. A detector is installed on the fixing part of the explosion relief membrane, and a signal line is connected to the detector; The signal line is configured to generate a corresponding electrical signal through its on / off state, which is used to transmit the electrical signal to the controller. The tear section of the explosion relief membrane is connected to the signal line. When the explosion relief membrane tears from the pre-tear seam under pressure, it causes the signal line to be disconnected to generate an electrical signal feedback.

[0006] By adopting the above technical solution, the design of the fixing part and tearing part of the explosion relief membrane, as well as the connection between the signal line and the tearing part, realizes that when the explosion relief membrane tears under pressure, the signal line is disconnected and generates an electrical signal feedback, thereby realizing the opening and closing feedback function of the explosion relief plate, which facilitates timely monitoring of the status of the explosion relief plate.

[0007] Optionally, inside the detector, there is a wire system electrically connected to the power supply. The signal lines are integrated in series within the wire system. The wire system forms an electrical connection node at the controller end, which can complete the transmission of electrical signals between the detector and the controller. A fuse is connected in series with the wiring system for circuit protection; the fuse is a surface-mount resettable fuse.

[0008] By adopting the above technical solution, a wiring system electrically connected to the power supply is configured inside the detector, and the signal lines are integrated into the wiring system. The switching of the signal lines generates an electrical signal, which is then sent to the controller. Simultaneously, series-connected surface-mount resettable fuses provide circuit protection, preventing damage to circuit components from overcurrent or other abnormal conditions, thus improving the reliability and safety of the equipment.

[0009] Optionally, a hook is provided on the tear portion of the explosion relief membrane, and the hook is hooked onto the signal line.

[0010] By adopting the above technical solution, a hook is set on the tear section of the explosion relief membrane, and the signal line is hooked to the hook, which enhances the connection between the signal line and the tear section, ensuring that the signal line can be reliably disconnected when the explosion relief membrane tears, and improving the accuracy of opening and closing feedback.

[0011] Optionally, a protective plate is provided on the outer wall of the explosion relief membrane, and the protective plate covers the explosion relief membrane.

[0012] By adopting the above technical solution, a protective plate is installed on the outer wall of the explosion relief membrane, which protects the explosion relief membrane, prevents external objects from colliding with or damaging the explosion relief membrane, and extends the service life of the explosion relief plate.

[0013] Optionally, the protective plate includes a frame and an opening / closing plate disposed on the frame. A support frame is disposed on the side of the frame facing the explosion relief membrane, and the opening / closing plate is supported on the support frame. A flange frame is disposed on the side of the frame away from the support frame. The flange frame presses the frame of the protective plate tightly against the support frame. The inner wall of the flange frame extends inward and partially covers the opening / closing plate. When the opening / closing plate is opened under air pressure, the opening / closing plate can be pulled away from the gap between the flange frame and the support frame, thereby achieving the opening effect of the opening / closing plate.

[0014] By adopting the above technical solution, the structural design of the protective plate, including the frame, opening and closing plate, support frame, and flange frame, allows the opening and closing plate to open smoothly under air pressure while maintaining the overall stability of the protective plate. This design ensures that the explosion relief plate can release pressure in a timely manner when the pressure exceeds the set value, and also improves the protective effect of the protective plate on the explosion relief plate under normal working conditions.

[0015] Optionally, sealing rings are provided on both sides of the explosion relief membrane, and the inner wall of the sealing ring extends inward and partially covers the pre-tear seam.

[0016] By adopting the above technical solution, sealing rings are set on both sides of the explosion relief membrane, and the inner wall of the sealing ring extends inward and partially covers the pre-tear seam, which enhances the sealing performance of the explosion relief membrane, prevents external dust, moisture and other substances from entering the explosion relief port, and ensures the normal working environment of the explosion relief plate.

[0017] Optionally, the sealing ring on the explosion relief membrane opposite to the explosion opening is provided with a notch, and the notch and the explosion relief membrane form a water guide groove, which is used to drain accumulated water.

[0018] By adopting the above technical solution, a notch is set on the sealing ring away from the explosion vent of the explosion relief membrane, and a water guide groove is formed with the explosion vent membrane, which realizes the function of draining accumulated water and prevents the accumulated water from corroding the explosion relief plate or affecting its normal operation.

[0019] Optionally, a baffle is fixedly connected to the protective plate. The baffle covers the outside of the water channel, which can prevent rainwater from entering the water channel without affecting the water channel's function of draining accumulated water.

[0020] By adopting the above technical solution, a baffle is fixedly connected to the protective plate and shields the outside of the water channel. This not only does not affect the drainage function of the water channel, but also effectively prevents rainwater from entering the water channel, thereby improving the drainage effect and reliability of the water channel.

[0021] Optionally, the side of the explosion relief membrane facing the explosion relief port is provided with heat insulation cotton, which presses the signal line tightly onto the explosion relief membrane.

[0022] By adopting the above technical solution, thermal insulation cotton is installed on the side of the explosion relief membrane facing the explosion relief port, and the signal line is pressed tightly onto the explosion relief membrane, which plays a role in heat insulation and prevents the external temperature change of the device from affecting the internal temperature of the device, thereby improving the stability and reliability of the device operation.

[0023] Optionally, the insulating cotton is covered with a bandage, the end of which extends to the fixing part of the explosion relief membrane, and the insulating cotton can be flipped over with the tear part of the explosion relief membrane.

[0024] By adopting the above technical solution, the insulation cotton is wrapped with bandages, the ends of which are staggered from the pre-tear seams and fixedly connected to the fixing part of the explosion relief membrane, thereby reducing the occurrence of the insulation cotton being thrown away when the tear part of the explosion relief membrane is flipped.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The connection between the signal line and the tear of the explosion relief membrane: When the explosion relief membrane tears, the signal line is disconnected and generates an electrical signal feedback, which enables the operator to understand the opening and closing status of the explosion relief plate in a timely manner. On the one hand, it can help to confirm the occurrence of an explosion relief event in a timely manner, and on the other hand, it can link other facilities to take action, so as to take corresponding measures in a timely manner, intervene quickly, prevent secondary overpressure or chain accidents, and improve the safety of equipment or buildings. 2. Connecting a surface-mount resettable fuse in series with the detector's wiring system can effectively protect the circuit, prevent circuit damage due to overcurrent or other abnormal conditions, and improve the reliability and stability of the equipment. 3. Sealing rings are installed on both sides of the explosion relief membrane to effectively prevent gas or liquid leakage; a water guide groove is installed on the sealing ring away from the explosion relief port, which, together with the baffle on the protective plate, can drain accumulated water in time to prevent water from corroding the explosion relief membrane or affecting its normal operation. 4. The drainage channel can promptly drain the water accumulated between the explosion-proof membrane and the protective plate, while the baffle reduces the possibility of rainwater entering from the drainage channel without affecting the drainage of accumulated water. 5. The insulation cotton is wrapped with bandages, the ends of which are staggered from the pre-tear seams and fixedly connected to the fixing part of the explosion relief membrane to reduce the occurrence of the insulation cotton being thrown away when the tear part of the explosion relief membrane is turned over. 6. Both the insulation cotton and the feedback device are located under the strength membrane. On the one hand, this reduces the height of the explosion relief plate protruding from the top of the container after installation, making it easier to lift and transport the container and reducing the risk of environmental exposure. On the other hand, placing the feedback device under the strength membrane facilitates connection with the main unit of the energy storage container and increases its service life. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0027] Figure 2 This is an exploded view of the explosion relief membrane used in the embodiments of this application.

[0028] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0029] Figure 4 This is a schematic diagram illustrating the structure of the conductor system in an embodiment of this application.

[0030] Figure 5 This is a structural schematic diagram illustrating the open state of the explosion relief membrane in an embodiment of this application.

[0031] Figure 6 This is an exploded view of the sealing ring notch used in the embodiments of this application.

[0032] Figure 7This is a schematic diagram illustrating the structure of the thermal insulation cotton in an embodiment of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Explosion relief membrane; 11. Sealing ring; 12. Notch; 13. Fixing part; 14. Tear part; 15. Pre-tear seam; 16. Insulation cotton; 17. Bandage; 2. Detector; 21. Connecting plate; 22. Wiring system; 23. Hook; 24. Signal line; 25. Fuse; 3. Protective plate; 31. Baffle; 32. Frame; 33. Opening and closing plate; 34. Support frame; 35. Flange frame. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0035] This application discloses a venting plate with opening and closing feedback function. For example... Figure 1 and Figure 2 The explosion relief plate with opening and closing feedback function includes an explosion relief membrane 1 for mounting on the explosion relief port of the target device. The membrane 1 consists of a fixing part 13 and a tearing part 14. A pre-tear slit 15 is provided between the fixing part 13 and the tearing part 14, and the pre-tear slit 15 is C-shaped. The target device can be a power distribution box, an energy storage container, or some equipment that easily generates dust. In this embodiment, the target device is an energy storage container. In practical applications, when the pressure at the explosion relief port of the target device is normal, the explosion relief membrane 1 remains intact; when the pressure at the explosion relief port exceeds a set value, the explosion relief membrane 1 tears from the pre-tear slit 15 under pressure.

[0036] like Figure 2 and Figure 3 A detector 2 is installed on the fixing part 13 of the explosion relief membrane 1. A connecting plate 21 is provided on the outer shell of the detector 2. The connecting plate 21 can be installed on the fixing part 13 of the explosion relief membrane 1 by means of bolt connection or welding. In this embodiment, the connecting plate 21 is welded to the side of the fixing part 13 facing the explosion relief port.

[0037] like Figure 1 and Figure 5 The detector 2 has a wiring system 22 inside its housing for connecting to a power source. A signal line 24 is connected in series with the wiring system 22, extending out of the detector 2's housing and towards the tear 14 of the explosion relief membrane 1. The target device contains a controller for controlling a fire suppression system or energy storage system. The wiring system 22 forms an electrical connection node at the controller end, enabling the transmission of electrical signals between the detector 2 and the controller. When the signal line 24 is in a closed state, the detector 2 transmits a first electrical signal to the controller through the wiring system 22; when the signal line 24 is in an open state, the detector 2 transmits a second electrical signal to the controller through the wiring system 22, realizing the opening and closing feedback function of the explosion relief membrane 1.

[0038] like Figure 3 and Figure 5 The signal line 24 is connected to the tear section 14 by a buckle or hook 23 or by adhesive bonding. In this embodiment, an I-shaped hook 23 is welded to the tear section 14 of the explosion relief membrane 1. The signal line 24 is sleeved on the hook 23, so that when the tear section 14 of the explosion relief membrane 1 is opened under pressure, the hook 23 pulls the signal line 24, which can break the signal line 24, thereby causing the signal line 24 to break.

[0039] like Figure 4 A fuse 25, which is a surface-mount resettable fuse 25, is connected in series with the wiring system 22. When an abnormal situation such as overcurrent occurs in the circuit, the surface-mount resettable fuse 25 will automatically disconnect the circuit, protecting the detector 2 and other circuit components from damage. When the abnormal situation is eliminated, the fuse 25 will automatically resume conduction, restoring the circuit to normal operation.

[0040] like Figure 1 and Figure 6 A protective plate 3 is provided on the outer wall of the explosion relief membrane 1, covering the side of the explosion relief membrane 1 away from the explosion relief port. The protective plate 3 includes a frame 32 and an opening and closing plate 33 provided on the frame 32. One side of the opening and closing plate 33 is fixed to the frame 32. The splice seam formed between the edge of the opening and closing plate 33 and the frame 32 is U-shaped, and the flipping direction of the opening and closing plate 33 when it is opened is the same as the flipping direction of the tear part 14 when it is opened. A support frame 34 is provided on the side of the frame 32 facing the explosion relief membrane 1, and the opening and closing plate 33 is supported on the support frame 34. A flange frame 35 is provided on the side of the frame 32 away from the support frame 34. The flange frame 35 presses the frame 32 of the protective plate 3 tightly onto the support frame 34, and the inner wall of the flange frame 35 extends inward and partially covers the opening and closing plate 33.

[0041] Under normal operating conditions, the opening and closing plate 33 remains closed under air pressure, and the protective plate 3 protects the explosion relief diaphragm 1 from collision or damage by external objects. When the pressure at the explosion relief port exceeds the set value, the explosion relief diaphragm 1 tears, and the air pressure further increases. The opening and closing plate 33 opens under air pressure, allowing it to separate from the gap between the flange frame 35 and the support frame 34, thus achieving the opening effect of the opening and closing plate 33 and releasing pressure in a timely manner.

[0042] like Figure 2 and Figure 6Both sides of the explosion relief membrane 1 are equipped with sealing rings 11. The sealing rings 11 can effectively prevent external dust, moisture, etc. from entering the interior of the explosion relief port, ensuring the normal working environment of the explosion relief plate. The sealing ring 11 on the side of the explosion relief membrane 1 closest to the explosion relief port fits against the connection between the connecting plate 21 and the fixing part 13 to achieve a seal and reduce water leakage at the connection between the connecting plate 21 and the fixing part 13. The inner wall of the sealing ring 11 extends inward and partially covers the pre-tear seam 15, reducing water leakage at the pre-tear seam 15.

[0043] A notch 12 is provided on the sealing ring 11 opposite to the explosion vent of the explosion vent, and the notch 12 and the explosion vent 1 form a water guide groove. When water accumulates between the protective plate 3 and the explosion vent 1, the water can be discharged through the water guide groove, which can alleviate the corrosion of the explosion vent plate or affect its normal operation.

[0044] In outdoor environments, the explosion relief plate is typically placed horizontally on top of the device, with the protective plate 3 positioned above the explosion relief membrane 1. During rainy weather, rainwater accumulates on the protective plate 3, and may flow from the gap between the frame 32 and the hinged plate 33 into the gap between the protective plate 3 and the explosion relief plate. A drainage channel guides the rainwater between the protective plate 3 and the explosion relief plate to a designated location for discharge, preventing prolonged accumulation of rainwater around the explosion relief plate, protecting its lifespan, and mitigating the problem of water seepage from the explosion relief plate into the device.

[0045] A baffle 31 is fixedly connected to the protective plate 3. The baffle 31 is bent toward the notch 12 and covers the outside of the water channel. The baffle 31 can prevent rainwater from entering the water channel without affecting the drainage of accumulated water.

[0046] In practical applications, when there is lateral wind and rain, the baffle 31 can prevent rainwater from directly entering the drainage channel, ensuring that the drainage channel can only discharge the water flowing down from above, thus improving the drainage effect and reliability of the drainage channel.

[0047] like Figure 2 and Figure 7 An insulating cotton 16 is installed on the side of the explosion relief membrane 1 facing the explosion relief port, and the insulating cotton 16 presses the signal line 24 tightly onto the explosion relief membrane 1. The insulating cotton 16 can play a role in heat preservation.

[0048] In some devices with high temperature requirements, such as chemical workshops, energy storage containers, or power distribution boxes, insulation cotton 16 can maintain a stable temperature at the explosion vent and mitigate the impact of changes in the external ambient temperature on the internal temperature of the device.

[0049] The insulating cotton 16 is wrapped with a bandage 17. The end of the bandage 17 is offset from the pre-tear seam 15 and extends to the fixing part 13 of the explosion relief membrane 1, where it is fixedly connected. When the tear part 14 of the explosion relief membrane 1 is opened, the insulating cotton 16 can flip over with the tear part 14. The bandage 17 can further fix the insulating cotton 16, preventing it from loosening or falling off during use. The bandage 17 is made of metal and extends from one end of the fixing part 13 of the explosion relief membrane 1, where it is fixedly connected by welding.

[0050] When the explosion relief membrane 1 is torn, since the end of the bandage 17 extends to the fixing part 13, the insulation cotton 16 and the bandage 17 can move together with the torn part 14 during the flipping process of the explosion relief membrane 1. This will not hinder the tearing of the explosion relief membrane 1 or the breakage of the signal line 24. At the same time, it can ensure the installation stability of the insulation cotton 16 on the explosion relief membrane 1 and reduce the occurrence of the insulation cotton 16 being thrown away when the torn part 14 of the explosion relief membrane 1 is flipped.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A venting plate with opening and closing feedback function, characterized in that: Includes a venting membrane (1) for mounting at the venting port, the venting membrane (1) being composed of a fixing part (13) and a tearing part (14), and a pre-tear slit (15) is provided between the fixing part (13) and the tearing part (14). A detector (2) is installed on the fixing part (13) of the explosion relief membrane (1), and a signal line (24) is connected to the detector (2). The signal line (24) is configured to generate a corresponding electrical signal through its on / off state, which is used to transmit to the controller; The tear section (14) of the explosion relief membrane (1) is connected to the signal line (24). When the explosion relief membrane (1) is torn from the pre-tear seam (15) under pressure, the signal line (24) is disconnected to generate an electrical signal feedback.

2. The explosion relief plate with opening and closing feedback function according to claim 1, characterized in that: Inside the detector (2), there is a wire system (22) that is electrically connected to the power supply. The signal line (24) is integrated in series in the wire system (22). The wire system (22) forms an electrical connection node at the controller end, which can complete the transmission of electrical signals between the detector (2) and the controller. A fuse (25) is connected in series on the conductor system (22) for circuit protection. The fuse (25) is a surface mount self-resetting fuse (25).

3. The explosion relief plate with opening and closing feedback function according to claim 1, characterized in that: A hook (23) is provided on the tear portion (14) of the explosion relief membrane (1), and the hook (23) is hooked onto the signal line (24).

4. A venting plate with opening and closing feedback function according to claim 1, characterized in that: A protective plate (3) is provided on the outer wall of the explosion relief membrane (1), and the protective plate (3) covers the explosion relief membrane (1).

5. A venting plate with opening and closing feedback function according to claim 4, characterized in that: The protective plate (3) includes a frame (32) and an opening and closing plate (33) disposed on the frame (32). A support frame (34) is disposed on the side of the frame (32) facing the explosion relief membrane (1), and the opening and closing plate (33) is supported on the support frame (34). A flange frame (35) is disposed on the side of the frame (32) away from the support frame (34). The flange frame (35) presses the frame (32) of the protective plate (3) against the support frame (34). The inner wall of the flange frame (35) extends inward and partially covers the opening and closing plate (33). When the opening and closing plate (33) is opened under air pressure, the opening and closing plate (33) can be separated from the gap between the flange frame (35) and the support frame (34) and achieve the opening effect of the opening and closing plate (33).

6. A venting plate with opening and closing feedback function according to claim 4, characterized in that: The explosion relief membrane (1) is provided with sealing rings (11) on both sides, and the inner wall of the sealing rings (11) extends inward and partially covers the pre-tear seam (15).

7. A venting plate with opening and closing feedback function according to claim 6, characterized in that: The explosion relief membrane (1) has a notch (12) on the sealing ring (11) opposite to the explosion opening, and the notch (12) and the explosion relief membrane (1) form a water guide channel, which is used to drain accumulated water.

8. A venting plate with opening and closing feedback function according to claim 7, characterized in that: A baffle (31) is fixedly connected to the protective plate (3). The baffle (31) covers the outside of the water channel and can prevent rainwater from entering the water channel without affecting the water channel's function of draining accumulated water.

9. A venting plate with opening and closing feedback function according to claim 1, characterized in that: The explosion relief membrane (1) is provided with heat insulation cotton (16) on the side facing the explosion relief port, and the heat insulation cotton (16) presses the signal line (24) tightly onto the explosion relief membrane (1).

10. A venting plate with opening and closing feedback function according to claim 9, characterized in that: The insulating cotton (16) is covered with a bandage (17), the end of which extends to the fixing part (13) of the explosion relief membrane (1), and the insulating cotton (16) can be flipped along with the tear part (14) of the explosion relief membrane (1).

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