Energy storage prefabricated cabin explosion venting device
By designing a modular explosion venting device for prefabricated energy storage compartments, a combination of explosion venting window flanges, explosion venting window frames, reversing hoods, and hinge components is adopted. High-temperature gas is discharged through exhaust holes and hourglass springs, solving the safety and installation convenience problems of existing explosion venting plates, and realizing safe and reliable multiple reuses and temperature control.
Patent Information
- Application Number
- CN202423051549.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing prefabricated energy storage compartments pose safety risks after the explosion relief panels collapse, are difficult to reuse, and are troublesome to install. Furthermore, existing explosion relief devices cannot effectively limit the temperature rise when the energy storage battery experiences thermal runaway.
An explosion venting device for a prefabricated energy storage compartment was designed. It adopts a modular structure, including an explosion venting window flange, an explosion venting window frame, a reversing hood, an explosion venting plate, and a hinge assembly. The device uses an exhaust port and an hourglass spring to release high-temperature gas and move the explosion venting plate, ensuring that the device is not damaged in the event of an explosion and can be reused multiple times.
The explosion relief device has achieved reliability and safety, avoiding personnel and equipment losses, and can be reused multiple times. It effectively limits the rise in temperature inside the battery compartment and ensures that the safety protection level is not reduced.
Smart Images
Figure CN223689570U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of explosion -proof, specifically, relate to a kind of energy storage prefabricated cabin explosion venting device. BACKGROUND
[0002] Energy storage prefabricated cabin is the important component of photovoltaic power station, wind-solar hybrid power station and other energy stations, including cabin body and energy storage battery arranged in cabin body, for each energy station, energy storage battery thermal runaway is major security threat, since energy storage battery thermal runaway will lead to large amounts of combustible gas accumulation, the pressure in cabin body rapidly rises, there is the risk of cabin body explosion, seriously endangering the safety of surrounding other equipment and personnel.
[0003] At present, in order to prevent the occurrence of such situation, the existing energy storage prefabricated cabin will open pressure relief channel on the facade of energy storage prefabricated cabin, then the pressure relief channel is blocked by explosion venting plate, when energy storage battery thermal runaway leads to the pressure in cabin body rapidly rises, explosion venting plate is broken by large force, in turn, the pressure in energy storage prefabricated cabin can be quickly discharged, reduce its possibility of explosion, but, after explosion venting plate breaks, there is safety risk and the whole is not easy to find, and damage may occur in the process of landing collision, it is more difficult to use again, and it is more troublesome when reinstalling new explosion venting plate.
[0004] For the problems in the related art, no effective solution has been proposed so far. UTILITY MODEL CONTENTS
[0005] For the problems in the related art, the utility model provides an energy storage prefabricated cabin explosion venting device to overcome the above technical problems existing in the prior art.
[0006] Therefore, the utility model adopts the following specific technical solutions:
[0007] An energy storage prefabricated cabin explosion venting device, comprising an energy storage cabin top cover, a vent window flange is arranged at the top end of the energy storage cabin top cover, a vent window frame is arranged at the top end of the vent window flange, a reversing cover is arranged inside the vent window frame, and an explosion venting plate is arranged at the bottom end of the reversing cover; a cover plate is arranged on one side of the vent window frame, and the cover plate and the vent window flange are connected by a hinge assembly; a travel switch is arranged on one side of the vent window frame; an electromagnet matched with the cover plate is arranged on one side of the vent window frame and at the top end of the energy storage cabin top cover; and the vent window flange and the energy storage cabin top cover are fixedly connected by welding.
[0008] Further, in order to enable high-temperature gas flow generated at the initial stage of thermal runaway failure of energy storage battery to be discharged to the outside of the cabin through the exhaust hole, the abnormal rise of the temperature inside the battery cabin can be preliminarily limited, and a plurality of exhaust holes are arranged on the outer side of the cover plate.
[0009] Further, in order to connect the explosion vent window flange and the cover plate together, the hinge assembly comprises a first hinge piece arranged on the side wall of the explosion vent window flange, one end of the first hinge piece is provided with a second hinge piece connected with the cover plate, and the second hinge piece is movably connected with the first hinge piece; hinge springs are arranged on the outer sides of the first hinge piece and the second hinge piece.
[0010] Further, in order to realize the connection between the explosion vent plate and the reversing cover, and when the temperature in the battery cabin abnormally rises, the high-temperature gas can push the explosion vent plate to move towards the reversing cover, so that a gap is formed between the explosion vent plate and the explosion vent window frame, the circulation of the high-temperature gas is realized, the bottom end of the reversing cover is connected with the top end of the explosion vent plate through a plurality of hourglass springs, and the outer side of the reversing cover is connected with the inner wall of the explosion vent window frame through a plurality of sleeves; a rectangular cavity is formed in the bottom of the explosion vent window frame, and the rectangular cavity is in clearance fit with the outer side of the explosion vent plate.
[0011] The utility model discloses the beneficial effects are:
[0012] 1、The utility model discloses a reasonable and reliable structure, adopts the design of modularization, and the number of parts is few, convenient to install, and can be set at different positions on the top as needed, satisfies the safety requirement, adopts double -walled sealing structure simultaneously, guarantees its setting in the top prefabricated cabin protection level not to reduce, in addition, the energy storage prefabricated cabin explosion venting device has no weak structure, and when explosion occurs, will not produce deformation and damage, can be repeatedly used, in addition, since the energy storage prefabricated cabin explosion venting device is arranged on the top of the prefabricated cabin, after explosion, all parts of the explosion venting device are still connected on the prefabricated cabin, avoid the safety risk of surrounding personnel, equipment and property loss such as articles.
[0013] 2、By setting the exhaust hole, the high-temperature gas generated in the initial stage of the thermal runaway failure of the energy storage battery can be discharged to the outside of the cabin, and the abnormal rise of the temperature in the battery cabin can be preliminarily limited.
[0014] 3、By setting the hourglass spring, the connection between the explosion vent plate and the reversing cover is realized, and when the temperature in the battery cabin abnormally rises, the high-temperature gas can push the explosion vent plate to move towards the reversing cover, so that a gap is formed between the explosion vent plate and the explosion vent window frame, and the circulation of the high-temperature gas is realized. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0016] Figure 1 is a structural schematic view of a storage energy prefabricated cabin explosion venting device according to an embodiment of the present application;
[0017] Figure 2 is an assembly view of a venting window flange and a storage energy cabin top cover in a storage energy prefabricated cabin explosion venting device according to an embodiment of the present application;
[0018] Figure 3 is a sectional view of a storage energy prefabricated cabin explosion venting device according to an embodiment of the present application;
[0019] Figure 4 is a state schematic view of a storage energy prefabricated cabin explosion venting device at an initial stage of a thermal runaway failure of a storage energy battery according to an embodiment of the present application;
[0020] Figure 5 is a state schematic view of a storage energy prefabricated cabin explosion venting device at a stage of a thermal runaway failure of a storage energy battery and a failure of a cabin protection device to successfully limit an explosion according to an embodiment of the present application;
[0021] Figure 6 is an assembly schematic view of a hinge assembly and a hinge spring in a storage energy prefabricated cabin explosion venting device according to an embodiment of the present application;
[0022] Figure 7 is an assembly schematic view of a hinge assembly and a hinge spring in a storage energy prefabricated cabin explosion venting device according to an embodiment of the present application.
[0023] In the drawings:
[0024] 1, cover plate; 101, exhaust hole; 2, venting window flange; 3, venting window frame; 301, rectangular cavity; 4, reversing cover; 5, venting plate; 6, hourglass spring; 7, hinge assembly; 701, first hinge piece; 702, second hinge piece; 8, hinge spring; 9, storage energy cabin top cover; 10, sleeve; 11, travel switch; 12, electromagnet. DETAILED DESCRIPTION
[0025] To further illustrate the embodiments, the present application provides drawings which are part of the disclosure of the present application, mainly used to illustrate the embodiments, and can be used to explain the operating principle of the embodiments in conjunction with the related description of the specification. With reference to these contents, those skilled in the art should understand other possible embodiments and advantages of the present application. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0026] According to an embodiment of the present application, a storage energy prefabricated cabin explosion venting device is provided.
[0027] The utility model is further illustrated in combination with the drawings and specific embodiments, as shown in the description Figures 1-7 As shown in the description, the energy storage prefabricated cabin explosion venting device according to the utility model embodiment comprises an energy storage cabin top cover 9, the top end of the energy storage cabin top cover 9 is provided with an explosion venting window flange 2, the top end of the explosion venting window flange 2 is provided with an explosion venting window frame 3, the inside of the explosion venting window frame 3 is provided with a reversing cover 4, the bottom end of the reversing cover 4 is provided with an explosion venting plate 5, one side of the explosion venting window frame 3 is provided with a cover plate 1, the cover plate 1 and the explosion venting window flange 2 are connected through a hinge assembly 7, one side of the inside of the explosion venting window frame 3 is provided with a travel switch 11, one side of the explosion venting window frame 3 and located at the top end of the energy storage cabin top cover 9 is provided with an electromagnet 12 matched with the cover plate 1, and the explosion venting window flange 2 and the energy storage cabin top cover 9 are fixedly connected through welding.
[0028] It needs to be supplemented that the explosion venting window frame 3 is embedded in the rectangular opening in the middle of the explosion venting window flange 2 and then embedded in the rectangular opening of the energy storage cabin top cover 9, the travel switch 11 is fixed above the reversing cover 4, the electromagnet 12 is fixed at the top end of the energy storage cabin top cover 9 and close to the cover plate 1, the explosion venting window flange 2 is welded on the energy storage cabin top cover 9, the explosion venting window frame 3 extends out of the rectangular opening in the middle of the explosion venting window flange 2, and the cover plate 1 covers the explosion venting window flange 2.
[0029] In addition, the bottom flange surface of the reversing cover 4 and the middle flange surface and side surface of the explosion venting window frame 3 leave a passage for high-pressure gas waves to pass through.
[0030] By means of the above technical scheme of the utility model, the utility model has reasonable and reliable structure, adopts modular design, has few parts, is easy to install, can be arranged at different positions on the top as required, meets safety requirements, adopts double sealing structure, ensures that the prefabricated cabin protection level is not reduced when arranged on the top, in addition, the energy storage prefabricated cabin explosion venting device has no weak structure, will not deform and be damaged when explosion occurs, can be repeatedly used, in addition, since the energy storage prefabricated cabin explosion venting device is arranged on the top of the prefabricated cabin, all parts of the explosion venting device are still connected to the prefabricated cabin after explosion, avoiding the safety risk of surrounding personnel and property loss such as equipment and articles.
[0031] In one embodiment, for the above-mentioned cover plate 1, a plurality of exhaust holes 101 are formed on the outer side of the cover plate 1, so that high-temperature gas waves generated at the initial stage of thermal runaway failure of the energy storage battery can be discharged to the outside of the cabin through the exhaust holes 101, and the abnormal rise of the internal temperature of the battery cabin can be preliminarily limited.
[0032] In one embodiment, for the above-mentioned hinge assembly 7, the hinge assembly 7 comprises a first hinge piece 701 arranged on the side wall of the vent window flange 2, one end of the first hinge piece 701 is provided with a second hinge piece 702 connected with the cover plate 1, and the second hinge piece 702 is movably connected with the first hinge piece 701; the outer side of the first hinge piece 701 and the second hinge piece 702 is provided with a hinge spring 8, so as to realize the connection between the vent window flange 2 and the cover plate 1.
[0033] It should be noted that the outer side of the second hinge piece 702 and the first hinge piece 701 is provided with a limiting gap for installing the hinge spring 8, and the first hinge piece 701 and the second hinge piece 702 are fixed on the vent window flange 2 and the cover plate 1 respectively by screws.
[0034] When the cover plate 1 is closed, the electromagnet 12 generates an attractive force to lock the cover plate 1 in the closed position. At this time, the state of the hinge assembly 7 is shown in Figure 6 , the hinge spring 8 is in a stressed state, so that the first hinge piece 701 and the second hinge piece 702 rotate clockwise, and the cover plate 1 is opened. When the cover plate 1 is opened, the state of the hinge assembly 7 is shown in Figure 7 , the hinge spring 8 is in a natural state, so as to fix the first hinge piece 701 and the second hinge piece 702, and the cover plate 1 is locked in the open position.
[0035] In one embodiment, for the above-mentioned reversing cover 4 and the vent plate 5, the bottom end of the reversing cover 4 and the top end of the vent plate 5 are connected by a plurality of hourglass springs 6, and the outer side of the reversing cover 4 and the inner wall of the vent window frame 3 are connected by a plurality of sleeves 10; a rectangular cavity 301 is arranged in the bottom of the vent window frame 3, and the rectangular cavity 301 is in clearance fit with the outer side of the vent plate 5.
[0036] Specifically, when the prefabricated cabin is in normal operation, the frame of the vent plate 5 blocks the gap between the bottom flange surface of the reversing cover 4 and the middle flange surface of the vent window frame 3, the hinge assembly 7 locks the cover plate 1 in the closed position, and the bottom surface of the cover plate 1 is in close contact with the upper surface of the vent window flange 2. The air inside and outside the venting device does not flow, which ensures the protection level of the prefabricated cabin.
[0037] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail.
[0038] In practical application, under the condition that the fault is limited, the cover plate 1 is fixed in the closed position, the explosion venting plate 5 is quickly reset under the action of the hourglass spring 6, the channel is closed, and the protection level of the equipment is ensured while the high-temperature gas is discharged. Under the condition that the fault is not limited by the cabin equipment and explosion occurs, the reversing cover 4 is fixed at the minimum position of the push rod by the sleeve 10, the cover plate 1 is fixed in the open position, the channel remains in the maximum open state, the high-temperature and high-pressure gas is discharged as soon as possible, and the safety of the equipment is protected.
[0039] In the initial stage of the thermal runaway fault of the energy storage battery, the high-temperature gas wave generated first pushes the explosion venting plate 5 to the reversing cover 4, the hourglass spring 6 is compressed and the axial length is reduced. When the deformation amount of the hourglass spring 6 is small, the stiffness is small. The force of the deformation amount of the hourglass spring 6 on the reversing cover 4 is much smaller than the supporting force of the sleeve 10 on the reversing cover 4, and the reversing cover 4 is fixed at the original position. The explosion venting plate 5 moves upward until the bottom flange surface of the reversing cover 4 and the middle flange surface and the side channel of the explosion venting window frame 3 for the high-temperature gas wave are opened. The high-temperature gas is finally discharged outside the cabin through the exhaust hole 101 on the side of the cover plate 1, which limits the abnormal rise of the temperature in the battery cabin, and the cover plate 1 will not be opened. This condition is applicable to the case that the short-circuit fault of the energy storage battery occurs and the protection equipment in the cabin successfully acts, and the fault is limited.
[0040] When the energy storage battery occurs thermal runaway fault and the protection equipment in the cabin fails to limit the fault and explosion occurs, the high-temperature and high-pressure gas wave generated first pushes the explosion venting plate 5 to the reversing cover 4. The reversing cover 4 is at the original position. The explosion venting plate 5 moves upward, and the bottom flange surface of the reversing cover 4 and the middle flange surface and the side channel of the explosion venting window frame 3 for the high-temperature gas wave are completely opened, as shown in Figure 3 At this time, because the distance between the bottom flange surface of the reversing cover 4 and the middle flange surface of the explosion venting window frame 3 limits the speed of gas discharge, the gas pressure in the cabin continues to rise. The distance between the explosion venting plate 5 and the reversing cover 4 continues to decrease, and the axial length of the hourglass spring 6 continues to decrease. Because the stiffness of the hourglass spring is large when the deformation amount is large, the force of the hourglass spring 6 on the reversing cover 4 is greater than the supporting force of the sleeve 10 on the reversing cover 4. The push rod of the sleeve 10 moves upward, the reversing cover 4 moves upward with the push rod, the travel switch 11 touch point switches, and the attraction of the cover plate 1 disappears after the electromagnetic iron 12 loses power. The cover plate 1 is opened under the action of the hinge spring 8 and rotates around the axis of the hinge assembly 7, and is locked in the open position by the hinge assembly 7, so as to avoid the cover plate from falling back due to gravity and affecting the explosion venting. The push rod of the sleeve 10 continues to move upward and finally stops at the minimum position of the push rod, as shown in Figure 4 At this time, the distance between the bottom flange surface of the reversing cover 4 and the middle flange surface of the explosion venting window frame 3 is increased to nearly 3 times of the original distance, and the cover plate 1 is also completely opened, as shown in Figure 5The explosion venting device is connected to the prefabricated cabin after explosion, and the safety risk of the surrounding personnel, the property loss of the equipment and articles, etc.
[0041] In conclusion, by means of the above technical scheme of the utility model, the utility model has reasonable and reliable structure, and adopts modular design, has less parts, is easy to install, can be arranged at different positions on the top as required, meets safety requirements, adopts double sealing structure, ensures that the protection level of the prefabricated cabin is not reduced when arranged on the top, in addition, the energy storage prefabricated cabin explosion venting device has no weak structure, will not be deformed and damaged when explosion occurs, can be repeatedly used, in addition, since the energy storage prefabricated cabin explosion venting device is arranged on the top of the prefabricated cabin, all parts of the explosion venting device are still connected to the prefabricated cabin after explosion, the safety risk of the surrounding personnel, the property loss of the equipment and articles, etc.
[0042] In the utility model, unless another definite provision and limitation, the terms "mount", "set", "connect", "fix", "screw" and other terms should be broad understanding, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation, for the ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.
[0043] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. An energy storage prefabricated cabin explosion venting device comprising an energy storage cabin roof (9), characterized in that, The top end of the energy storage cabin top cover (9) is provided with an explosion venting window flange (2), the top end of the explosion venting window flange (2) is provided with an explosion venting window frame (3), the inside of the explosion venting window frame (3) is provided with a reversing cover (4), the bottom end of the reversing cover (4) is provided with an explosion venting plate (5); One side of the explosion venting window frame (3) is provided with a cover plate (1), the cover plate (1) and the explosion venting window flange (2) are connected through a hinge assembly (7), one side of the inside of the explosion venting window frame (3) is provided with a travel switch (11), one side of the explosion venting window frame (3) and located at the top end of the energy storage cabin top cover (9) is provided with an electromagnet (12) matched with the cover plate (1).
2. The energy storage pre-fabricated cabin explosion vent according to claim 1, characterized in that, The outside of the cover plate (1) is provided with a plurality of exhaust holes (101).
3. The energy storage pre-fabricated cabin explosion vent of claim 1, wherein, The hinge assembly (7) comprises a first hinge piece (701) arranged on the side wall of the explosion venting window flange (2), one end of the first hinge piece (701) is provided with a second hinge piece (702) connected with the cover plate (1), and the second hinge piece (702) and the first hinge piece (701) are movably connected.
4. The energy storage pre-fabricated cabin explosion vent according to claim 3, characterized in that, The outside of the first hinge piece (701) and the second hinge piece (702) is provided with a hinge spring (8).
5. The energy storage pre-fabricated cabin explosion vent of claim 1, wherein, The bottom end of the reversing cover (4) and the top end of the explosion venting plate (5) are connected through a plurality of hourglass springs (6), the outside of the reversing cover (4) and the inner wall of the explosion venting window frame (3) are connected through a plurality of sleeves (10).
6. The energy storage pre-fabricated cabin explosion vent of claim 1, wherein, The explosion venting window flange (2) and the energy storage cabin top cover (9) are fixedly connected through welding.
7. The energy storage pre-fabricated cabin explosion vent of claim 1, wherein, The bottom of the explosion venting window frame (3) is provided with a rectangular cavity (301), and the rectangular cavity (301) is matched with the outside of the explosion venting plate (5) in clearance.