A slotted explosion vent with signal feedback device

Abstract

The utility model discloses a kind of slit type explosion vent with signal feedback device, belong to energy storage cabinet combustion venting technical field, the slit type explosion vent includes protective cover and blasting membrane component, the blasting membrane component includes blasting membrane, the inside surface of protective cover is connected with blasting membrane, connector, signal line fixing piece and flexible circuit board of being electrically connected with each other are provided on blasting membrane;By being provided with connector, signal line fixing piece and flexible circuit board of being electrically connected with each other on blasting membrane, when blasting, flexible circuit board breaks, signal interruption forms signal feedback effect, by the feedback of signal, the working condition of explosion vent can be monitored in real time, to judge the safety state of energy storage tank, solve the problem that traditional explosion vent cannot timely feedback the working condition of explosion vent to operator, operator is difficult to accurately judge the pressure condition inside energy storage cabinet and whether explosion vent works normally.

Description

Technical Field

[0001] This utility model belongs to the field of explosion venting technology for energy storage cabinets, specifically relating to a slotted explosion venting plate with a signal feedback device. Background Technology

[0002] In recent years, with the rapid development of the energy storage industry, the safety of energy storage systems has received increasing attention. As an important component of energy storage systems, energy storage cabinets may face abnormal increases in internal pressure during operation. If not handled in time, this may lead to serious accidents such as explosions. To ensure the safe operation of energy storage cabinets, explosion relief panels are widely used in the safety protection design of energy storage cabinets.

[0003] The explosion relief safety device in the energy storage industry consists of a burst membrane, a protective cover, insulation cotton, and sealing strips. It is usually installed on the top of the energy storage cabinet. Under normal operating conditions, the explosion relief device plays a sealing role. When gas accumulates inside the energy storage cabinet and the pressure rises to the explosion pressure set by the explosion relief device, the explosion relief device bursts instantly along the weakening groove to release the pressure inside the energy storage cabinet and protect the safety of the energy storage cabinet.

[0004] There are three key considerations for explosion relief panels in energy storage: First, the precision of the burst pressure. When a flammable gas explodes or the pressure increases to a certain threshold inside the energy storage cabinet, the panel should open rapidly to release the internal pressure and prevent a more serious explosion. Second, the sealing performance. During normal operation of the energy storage cabinet, the explosion relief panel serves as a regular seal to prevent external dust and rainwater from entering the cabinet and causing a short circuit and explosion. Third, the aging resistance. Energy storage cabinets are mostly used in harsh outdoor environments and have a long service life, typically 10 to 15 years. Therefore, ensuring the durability and high reliability of the explosion relief panel is crucial.

[0005] Traditional explosion relief panels have several shortcomings in use. First, they cannot provide timely feedback to operators regarding the panel's operational status, making it difficult for operators to accurately assess the internal pressure of the energy storage cabinet and whether the panel is functioning correctly. Second, to seal the enclosure, the sealing strips are typically 3mm to 4mm thick. While this thickness provides a good seal, the relatively low burst pressure of the explosion relief panel means that the thicker strips can withstand greater pressure, resulting in less stable control over the burst pressure and inaccurate pressure distribution. Furthermore, the significant deformation caused by compression after installation can deform the damping groove, affecting the accuracy of the burst pressure. Under prolonged compression, the elasticity of the sealing strip can easily cause the damping groove to rupture, leading to leakage. Utility Model Content

[0006] Based on the problems existing in the above-mentioned background technology, this utility model proposes a slotted explosion relief plate with a signal feedback device, which solves the problem that traditional explosion relief plates cannot provide timely feedback to operators on the working status of the explosion relief plate, and that operators have difficulty accurately judging the pressure inside the energy storage cabinet and whether the explosion relief plate is working properly.

[0007] The present invention is implemented as follows: The present invention provides a slotted explosion relief plate with a signal feedback device for use in an energy storage cabinet. The slotted explosion relief plate includes a protective cover and a rupture membrane assembly. The rupture membrane assembly includes a rupture membrane, which is connected to the inner side of the protective cover. The rupture membrane is provided with connectors, signal line fixing parts and flexible circuit boards that are electrically connected to each other.

[0008] Furthermore, a closed flange strip is provided around the perimeter of the protective cover, and the inner side of the flange strip is flush with the inner side of the protective cover; the bursting membrane covers the flange strip and the inner side of the protective cover.

[0009] Furthermore, a sealing strip is provided on the inner side of the rupture membrane, and multiple first weakening grooves are formed on the sealing strip, the depth of which is 1 / 3 to 1 / 2 of the thickness of the sealing strip.

[0010] Furthermore, the rupture membrane cover has multiple second damping grooves.

[0011] Furthermore, the flange strip is provided with a plurality of mounting holes circumferentially, each mounting hole penetrating the flange strip, the burst membrane, and the sealing strip; a gasket is provided in the mounting hole located in the sealing strip.

[0012] Furthermore, the thickness of the gasket is 1 / 4 to 1 / 2 of the thickness of the sealing strip.

[0013] Furthermore, the protective cover is a closed hollow structure, with the interior filled with heat-insulating glass wool, and multiple reinforcing ribs provided on the outer surface of the protective cover.

[0014] Furthermore, the flexible circuit board has a U-shaped structure and is located on both sides of the single first weakening groove.

[0015] Furthermore, the flexible circuit board is a single-layer copper foil flexible circuit board with a thickness of less than or equal to 0.1 mm, and the signal voltage of the flexible circuit board is 24V DC or 12V DC, and the current is less than or equal to 50mA.

[0016] Furthermore, the rupture membrane is connected to the inner side of the protective cover by means of sealant and riveting.

[0017] Compared with traditional explosion relief plates, the beneficial effects of this utility model are:

[0018] 1. The present invention provides a slotted explosion relief plate with a signal feedback device. By setting connectors, signal line fixing parts and flexible circuit boards that are electrically connected to each other on the explosion membrane, when the explosion occurs, the flexible circuit board breaks and the signal is interrupted, thus forming a signal feedback effect. Through the signal feedback, the working status of the explosion relief plate can be monitored in real time, thereby judging the safety status of the energy storage box.

[0019] 2. The slit-type explosion relief plate with signal feedback device provided by this utility model can achieve precise control of the pressure of the slit-type explosion relief plate by pre-cutting the first weakening groove on the sealing strip, and the explosion pressure tolerance is smaller.

[0020] 3. The slit-type explosion relief plate with signal feedback device provided by this utility model has a gasket built into the sealing strip, which can accurately control the compression of the sealing strip, reduce the installation difficulty, make the slit-type explosion relief plate more adaptable, shorten the installation cycle of the slit-type explosion relief plate, and improve production efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The above and other objects, features, and advantages of this utility model will become clearer through the drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not intentionally drawn to scale to actual dimensions; the focus is on illustrating the main idea of ​​this utility model.

[0022] Figure 1 This is a front view schematic diagram of a slotted explosion relief plate with a signal feedback device.

[0023] Figure 2 for Figure 1 A schematic diagram of the structure in the AA direction.

[0024] Figure 3 for Figure 2 A magnified structural diagram at point B in the middle.

[0025] Figure 4 This is a front view schematic diagram of the rupture membrane.

[0026] Figure 5 This is an enlarged structural diagram of the first weakening groove located on the sealing strip.

[0027] Figure 6 This is a partially enlarged structural diagram of the rupture membrane assembly.

[0028] Among them, 1. Protective cover; 2. Bursting membrane; 3. Connector; 4. Signal line fixing component; 5. Flexible circuit board; 6. Flange strip; 7. Sealing strip; 8. First weakening groove; 9. Second weakening groove; 10. Mounting hole; 11. Gasket; 12. Thermal insulation glass wool; 13. Reinforcing rib. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0033] Please refer to Figures 1-6 As shown, this utility model provides a slotted explosion relief plate with a signal feedback device, which is used on the top surface of an energy storage cabinet. It serves as an explosion relief port when the energy storage cabinet experiences an explosion or other malfunction and overpressure. After the explosion is relieved, the internal pressure can be released quickly to avoid greater explosion losses.

[0034] The slotted explosion relief panel includes a protective cover 1 and a rupture membrane assembly. The rupture membrane assembly includes a rupture membrane 2, which is connected to the inner side of the protective cover 1. Specifically, the rupture membrane 2 is connected to the inner side of the protective cover 1 by means of sealant and riveting. The rupture membrane 2 is provided with connectors 3, signal line fixing parts 4, and flexible circuit boards 5 that are electrically connected to each other.

[0035] By incorporating interconnected connectors 3, signal line fixing components 4, and flexible circuit boards 5 on the rupture membrane 2, when the membrane ruptures, the flexible circuit board 5 breaks, interrupting the signal and creating a feedback mechanism. This feedback allows for real-time monitoring of the rupture plate's operational status, enabling the assessment of the energy storage tank's safety condition. This solves the problem of traditional rupture plates failing to provide timely feedback to operators regarding their operational status, making it difficult for operators to accurately determine the internal pressure of the energy storage tank and whether the rupture plate is functioning correctly.

[0036] Preferably, a closed flange strip 6 is provided around the perimeter of the protective cover 1, and the inner side of the flange strip 6 is flush with the inner side of the protective cover 1; the rupture membrane 2 covers the flange strip 6 and the inner side of the protective cover 1. The flange strip 6 is glued or spot-welded to the rupture membrane 2 for fixation, providing a certain strength support as a bolt mounting surface, ensuring that the rupture membrane 2 is not easily damaged during handling, transportation and installation.

[0037] A sealing strip 6 is provided on the inner side of the rupture membrane 2. Multiple first weakening grooves 8 are formed on the sealing strip 6, and the depth of each first weakening groove 8 is 1 / 3 to 1 / 2 of the thickness of the sealing strip 6. By pre-cutting the first weakening grooves 8 on the sealing strip 6, precise control of the pressure of the slotted rupture relief plate can be achieved, resulting in a smaller rupture pressure tolerance.

[0038] Furthermore, the rupture membrane 2 is covered with multiple second weakening grooves 9, which makes the rupture pressure of the rupture membrane 2 more precise.

[0039] Furthermore, the flange strip 6 is provided with a plurality of mounting holes 10 circumferentially, each mounting hole 10 penetrating the flange strip 6, the burst membrane 2, and the sealing strip 6; a gasket 11 is provided in the mounting hole 10 located in the sealing strip 6. The thickness of the gasket 11 is 1 / 4 to 1 / 2 of the thickness of the sealing strip 6. The gasket 11 is embedded in the mounting hole 10 of the sealing strip 6. The compression of the sealing strip 6 can be controlled by adjusting the thickness of the gasket 11, thereby avoiding deformation and damage of the groove under pressure, and adapting to various installation torque requirements, reducing the difficulty of operation for on-site workers.

[0040] Furthermore, the protective cover 1 is a closed hollow structure, the interior of the protective cover 1 is filled with heat-insulating glass wool 12, and multiple reinforcing ribs 13 are provided on the outer surface of the protective cover 1.

[0041] Furthermore, the flexible circuit board 5 has a U-shaped structure and is located on both sides of the first weakening groove 8. Upon explosion, it undergoes shearing and breaks, interrupting the signal and providing feedback. The external interface uses a connector 3, which can be either a 2-pin or 3-pin connector. The 2-pin connector 3 only provides a continuity feedback signal. The 3-pin connector 3 can provide a separate ground wire in addition to providing a continuity feedback signal.

[0042] Furthermore, the flexible circuit board 5 is a single-layer copper foil flexible circuit board 5 with a thickness of less than or equal to 0.1 mm. The signal voltage of the flexible circuit board 5 is 24V DC or 12V DC, and the current is less than or equal to 50mA. The above settings ensure that the flexible circuit board 5 can be reliably broken.

[0043] The assembly process of the slotted explosion relief plate with signal feedback device in this utility model is as follows: First, install the connector 3, signal line fixing part 4, and flexible circuit board 5 on the cut explosion membrane 2. The connector 3 and flexible circuit board 5 are connected by wire soldering. After the connection is completed, use 3M adhesive to stick and fix the line to the explosion membrane 2 to avoid shaking damage, forming an explosion membrane assembly. Then, fill the inside of the protective cover 1 with heat insulation glass wool 12. After the filled protective cover 1 is sealed with sealant on the assembly connection surface, it is combined with the explosion membrane assembly and fixed with rivets. After the assembly is completed, attach the already slotted sealing strip 6 to the parts. The width of the sealing strip 6 should cover the rivet hole. After installation, it can form an internal and external seal to ensure that the system sealing performance meets the requirements. Finally, attach the flange strip 6 to the explosion membrane 2 in sequence to form the flange mounting end face for the installation of the explosion relief plate.

[0044] In summary, the slit-type explosion relief device with signal feedback of this utility model solves the problems of product accuracy and stability by changing the structural design, adding a gasket 11 and a damping groove, and integrating the signal feedback device inside the explosion relief plate to achieve timely feedback on the opening status of the explosion relief plate, and has the advantage of high reliability unaffected by the environment.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A slotted explosion relief plate with a signal feedback device, used in an energy storage cabinet, characterized in that, The slotted explosion relief panel includes a protective cover and a rupture membrane assembly. The rupture membrane assembly includes a rupture membrane, which is connected to the inner side of the protective cover. The rupture membrane is provided with connectors, signal line fixing parts, and flexible circuit boards that are electrically connected to each other.

2. The slotted explosion relief plate with signal feedback device according to claim 1, characterized in that, A closed flange strip is provided around the perimeter of the protective cover, and the inner side of the flange strip is flush with the inner side of the protective cover; the burst membrane covers the flange strip and the inner side of the protective cover.

3. The slotted explosion relief plate with signal feedback device according to claim 2, characterized in that, The inner surface of the rupture membrane is provided with a sealing strip, and the sealing strip has multiple first weakening grooves, the depth of which is 1 / 3 to 1 / 2 of the thickness of the sealing strip.

4. The slotted explosion relief plate with signal feedback device according to claim 3, characterized in that, The rupture membrane cover has multiple second weakening grooves.

5. The slotted explosion relief plate with signal feedback device according to claim 3, characterized in that, The flange strip has multiple mounting holes arranged circumferentially, each mounting hole penetrating the flange strip, the burst membrane, and the sealing strip; a gasket is placed inside the mounting hole located in the sealing strip.

6. The slotted explosion relief plate with signal feedback device according to claim 5, characterized in that, The thickness of the gasket is 1 / 4 to 1 / 2 of the thickness of the sealing strip.

7. The slotted explosion relief plate with signal feedback device according to claim 1, characterized in that, The protective cover is a closed hollow structure, with the interior filled with heat-insulating glass wool, and multiple reinforcing ribs installed on the outer surface of the protective cover.

8. The slotted explosion relief plate with signal feedback device according to claim 3, characterized in that, The flexible circuit board has a U-shaped structure and is located on both sides of the first weakening groove.

9. The slotted explosion relief plate with signal feedback device according to claim 8, characterized in that, The flexible circuit board is a single-layer copper foil flexible circuit board with a thickness of less than or equal to 0.1 mm. The signal voltage of the flexible circuit board is 24V DC or 12V DC, and the current is less than or equal to 50mA.

10. The slotted explosion relief plate with signal feedback device according to claim 1, characterized in that, The rupture membrane is connected to the inner side of the protective cover by sealant and riveting.

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