Explosion-proof device of liquid cooling energy storage cabinet

Abstract

The utility model provides a liquid cooling energy storage cabinet explosion-proof device comprising a cabinet body, the cabinet body is internally provided with a main installation cavity which is provided with an opening at the front end and is used for installing an energy storage module, the opening end at the front end of the main installation cavity is hinged with a first door body, and the first door body enables the main installation cavity to form a sealed chamber. An anti-explosion valve is arranged on the first door body; the explosion-proof valve comprises a valve plate fixed to the first door body in an attached mode, a first sealing ring is arranged between the valve plate and the first door body, the outer end face of the valve plate is concaved inwards to form a mounting clamping groove, an exhaust port communicated with the main mounting cavity is formed in the mounting clamping groove, and a second sealing ring is arranged between the valve plate and the first door body. A sealing cover capable of covering the exhaust port is installed in the installation clamping groove through magnetism, and a second sealing ring is arranged between the sealing cover and the installation clamping groove. The explosion-proof device for the liquid cooling energy storage cabinet is compact in structure and convenient to install, and the use safety of the energy storage cabinet is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of energy storage cabinets, in particular to a kind of liquid cooling energy storage cabinet explosion-proof device. BACKGROUND

[0002] With the transformation of global energy structure and the progress of energy storage technology, battery energy storage system is widely used in peak valley regulation, reactive power compensation and renewable energy smoothing output of power system due to its clean, efficient and low operating cost. Especially, lithium battery is increasingly used in energy storage system due to its high energy density and long cycle life. However, due to the heat generated by battery during charging and discharging, if it cannot be effectively cooled in time, and thermal runaway may occur in high energy density battery cluster, which may cause chain reaction between batteries, resulting in rapid rise of internal environment temperature of energy storage cabinet. If not controlled, it may eventually cause explosion and fire, seriously threatening the safety of nearby personnel and equipment and causing significant economic loss.

[0003] In order to improve the stability and reliability of energy storage cabinet, it usually adopts a certain sealing structure, and the existing energy storage cabinet mostly focuses on overall safety design, but often ignores the explosion-proof demand of battery energy storage cabinet in specific flammable and explosive environment. When the energy storage cabinet encounters extreme situation, such as a large amount of heat release of battery in a short time, it will produce deflagration and instant large pressure. Since its internal environment tends to be sealed, it cannot release such pressure, which may further cause cabinet rupture and other more serious safety accidents. SUMMARY

[0004] Technical problem to be solved

[0005] The technical problem to be solved by the utility model is to provide a liquid cooling energy storage cabinet explosion-proof device with compact structure, easy installation and pressure release in emergency, thereby realizing explosion-proof.

[0006] Technical solution to solve the problem

[0007] The utility model provides a kind of liquid cooling energy storage cabinet explosion-proof device, including cabinet 1, the front end of the cabinet 1 is equipped with open and is used to install energy storage module main installation cavity 1a, the front end open end of the main installation cavity 1a is hinged with first door body 12, the first door body 12 can make the main installation cavity 1a form a sealed chamber, and the first door body 12 is equipped with explosion-proof valve 2;The explosion-proof valve 2 includes the valve plate 21 that is fixedly attached on the first door body 12, first sealing ring 26 is equipped between the valve plate 21 and the first door body 12, the outer end of the valve plate 21 is inwardly concave and forms an installation clamping groove, exhaust port 211 that is connected with the main installation cavity 1a is opened in the installation clamping groove, sealing cover 22 that can cover exhaust port 211 is magnetically installed in the installation clamping groove, second sealing ring 27 is equipped between the sealing cover 22 and the installation clamping groove.

[0008] Further, the center of the valve plate 21 is provided with a magnet mounting hole 212, and a magnet capable of attracting the sealing cover 22 is arranged in the magnet mounting hole 212.

[0009] Further, it further includes a mounting seat 23, the head of the mounting seat 23 extends into the magnet mounting hole 212, the magnet is arranged on the mounting seat 23, and the side wall of the mounting seat 23 is provided with a fixed leg 231, the fixed leg 231 is sheet-shaped and can be attached to the rear end surface of the valve plate 21, and the fixed leg 231 is detachably mounted on the rear end of the valve plate 21 by screws.

[0010] Further, the outer wall of the mounting seat 23 and the inner wall of the magnet mounting hole have a gap.

[0011] Further, the installation clamping groove is circular.

[0012] Further, the exhaust port 211 is a plurality of and is evenly distributed around the axis of the installation clamping groove.

[0013] Further, the cross-sectional area of the exhaust port 211 is greater than or equal to 20 cm 2 .

[0014] Further, the valve plate 21 includes a circular plate body, the edge of the circular plate body extends outwardly and forms a lug, and a first mounting hole 210a for connecting with the first door body 12 is opened on the lug; first annular mounting groove 216 for mounting first sealing ring 26 and second annular mounting groove 215 for mounting second sealing ring 27 are respectively opened on the two end surfaces of the circular plate body.

[0015] Further, the second sealing ring 27 is triangular in cross section, comprising a V-shaped first sealing part 271, the head of the first sealing part 271 being capable of contacting the rear end surface of the sealing cover 22, the two sides of the first sealing part 271 extending rearward and forming connecting parts 272, the end portions of the connecting parts 272 being bent toward each other and forming two second sealing parts 273, the end surfaces of the second sealing parts 273 serving as sealing surfaces and being capable of contacting the end surfaces of the second annular mounting groove 215.

[0016] Further, the lug is a plurality of and is uniformly distributed in the circumferential direction.

[0017] Further, the rear end of the valve plate is detachably mounted with a plurality of female and male studs 24, the length of the female and male studs 24 being greater than the thickness of the first door body 12, the end portion of the female and male studs 24 being mounted with a fan 25, the air outlet end of the fan facing the exhaust port.

[0018] Further, the explosion-proof valve is arranged at the upper end of the first door body 12 and close to the hinged end.

[0019] Beneficial effects

[0020] The utility model discloses a liquid cooling energy storage cabinet explosion-proof device, set up the explosion-proof valve on the door body, when the energy storage cabinet happens extreme condition such as deflagration, can rush open the sealing cover of explosion-proof valve and open the exhaust port, and then rapidly release internal pressure, avoid the explosion caused by too big pressure difference, ensure the structural integrity and personnel safety of energy storage cabinet, the sealing cover adopts magnetic connection, can realize automatic adsorption, compact structure, convenient to assemble and disassemble, set up connecting rope, ensure that the sealing cover does not fly out and cause personnel injury when abnormally opening, simultaneously, the setting of connecting rope also allows the operator to manually pull open the sealing cover when necessary, and can prevent the loss of sealing cover, the sealing ring structure is designed and optimized, improves its elastic deformation ability, improves the sealing property of sealing cover, simultaneously, can improve the installation adhesion of sealing cover, set up the fan, can realize the auxiliary discharge of flue gas, reduce internal flue gas residue, improve the safety of later door operation, the utility model discloses a liquid cooling energy storage cabinet explosion-proof device, compact structure, convenient to install, greatly improve the use safety of energy storage cabinet. ACCURACY

[0021] Figure 1 It is the structure schematic view of the cabinet body of the utility model discloses a liquid cooling energy storage cabinet explosion-proof device;

[0022] Figure 2 It is the internal structure schematic view of the cabinet body of the utility model discloses a liquid cooling energy storage cabinet explosion-proof device;

[0023] Figure 3 It is the structure schematic view of the first door body of the utility model discloses a liquid cooling energy storage cabinet explosion-proof device;

[0024] Figure 4 Another angle structural schematic view of the first door body of the explosion-proof device of the liquid-cooled energy storage cabinet;

[0025] Figure 5 For Figure 4 Enlarged view of A part in the middle;

[0026] Figure 6 The structure schematic view of the explosion-proof valve of the explosion-proof device of the liquid-cooled energy storage cabinet;

[0027] Figure 7 Another angle structural schematic view of the explosion-proof valve of the explosion-proof device of the liquid-cooled energy storage cabinet;

[0028] Figure 8 The installation schematic view of the mounting seat of the explosion-proof device of the liquid-cooled energy storage cabinet;

[0029] Figure 9 The sectional view of the explosion-proof valve of the explosion-proof device of the liquid-cooled energy storage cabinet;

[0030] Figure 10 For Figure 9 Enlarged view of B part in the middle;

[0031] Figure 11 Another angle installation schematic view of the mounting seat of the explosion-proof device of the liquid-cooled energy storage cabinet;

[0032] Figure 12 The explosion structure schematic view of the explosion-proof valve of the explosion-proof device of the liquid-cooled energy storage cabinet;

[0033] Figure 13 The structure schematic view of the valve plate of the explosion-proof device of the liquid-cooled energy storage cabinet;

[0034] Figure 14 Another angle structural schematic view of the valve plate of the explosion-proof device of the liquid-cooled energy storage cabinet. Specific implementation

[0035] The embodiments of the utility model will be described in detail below with reference to the drawings.

[0036] Refer to Figures 1-14The utility model provides a kind of liquid cooling energy storage cabinet explosion-proof device, including cabinet 1, cabinet 1 is whole as cuboid structure, be equipped with a vertical partition 11 in cabinet 1, the vertical partition 11 separates cabinet 1 into main installation cavity 1a and vice installation cavity 1b, wherein main installation cavity 1a is used to install energy storage element (module), vice installation cavity 1b is used to arrange control module, ventilation and cooling system, this structure helps to improve the use efficiency of energy storage cabinet, reduce explosion risk, ensure the safe operation of electrical equipment, in the application, the width of main installation cavity 1a is greater than the width of vice installation cavity 1b, compact and efficient layout is formed.In the front end open end of main installation cavity 1a is equipped with first door body 12, first door body 12 is hinged on cabinet 1, i.e. rotating connection, when closing, first door body 12 can make main installation cavity 1a form a sealed chamber, second door body 13 is provided in the front end open end of vice installation cavity 1b, second door body 13 is also connected in hinged mode, cooling, heat dissipation heat dissipation hole is formed on second door body 13.

[0037] In the application, explosion-proof valve 2 is provided on first door body 12, which is used to open the explosion-proof valve quickly when internal explosion or other pressure suddenly increases accident occurs, to make the inside of cabinet communicate with the outside, release pressure, effectively avoid explosion danger caused by excessive pressure, avoid damage to cabinet and surrounding environment;In the application, explosion-proof valve is arranged at the upper end of first door body 12, and is located at the side close to hinged end, first door body 12 at this position is best in rigidity, at the same time, has enough height, improves overall safety and use stability.

[0038] In the application, the explosion-proof valve 2 comprises a valve plate 21 and a sealing cover 22. The valve plate 21 is a circular plate structure, which is fixedly attached to the first door body 12, specifically, the outer wall of the first door body 12. The edge of the circular plate body extends outward and forms a lug, which is two and uniformly distributed in the circumferential direction, forming an oval-like structure. A first mounting hole 210a is formed on the lug for conveniently and quickly attaching the valve plate 21 to the first door body 12 by bolts. A first sealing ring 26 is arranged between the valve plate 21 and the first door body 12, which is used to realize the sealing between the two, avoid the entry of external water vapor, dust and the like, and realize the elastic contact between the two to avoid the generation of gaps and the phenomenon of shaking, thereby improving the installation sealing performance and stability of the valve plate 21. The outer end surface (the end away from the cabinet) of the valve plate 21 is inwardly recessed to form a circular mounting slot. An exhaust port 211 is formed in the mounting slot, which communicates with the main installation cavity 1a and serves as a communication end of the main installation cavity 1a with the outside. The sealing cover 22 is magnetically (magnet) installed in the mounting slot, which can cover the exhaust port 211 and block the communication between the exhaust port 211 and the outside. Meanwhile, a second sealing ring 27 is arranged between the sealing cover 22 and the mounting slot to realize the sealing between the sealing cover 22 and the mounting slot (exhaust port 211), avoid the entry of external water vapor, dust and the like, and improve the safety in use. In the embodiment, a first annular mounting slot 216 is formed in the rear end surface of the circular plate body for mounting the first sealing ring 26, which is used to contact the outer wall of the first door body 12 to realize sealing. The first annular mounting slot 216 is coaxial with the valve plate 21 and has a diameter slightly smaller than that of the valve plate 21. A second annular mounting slot 215 is formed in the front end surface of the circular plate body for mounting the second sealing ring 27, which is used to contact the inner end surface of the sealing cover 22 to realize the sealing between the sealing cover 22 and the valve plate 21. The second annular mounting slot 215 is coaxial with the valve plate 21 and has a diameter slightly smaller than that of the mounting slot. In the application, the second sealing ring 27 has a triangular cross section, which comprises a V-shaped first sealing portion 271. The head of the first sealing portion 271 can contact the rear end surface of the sealing cover 22. The two sides of the first sealing portion 271 extend backward and form a connecting portion 272, the side wall of which is also inclined and parallel to the side wall of the first sealing portion 271. The end of the connecting portion 272 is bent toward the other end to form two second sealing portions 273, which form a triangular structure as a whole. The end surface of the second sealing portion 273 serves as a sealing surface and contacts the end surface of the second annular mounting slot 215. A groove is formed between the two second sealing portions 273, which can be elastically deformed and move away from each other under pressure.Therefore, in order to make the second sealing part have a deformation space, the width of the second annular mounting groove is slightly larger than the width of the second sealing ring 27, which enables the second sealing ring to be elastically deformed when the sealing cover 22 is closed, realizes soft contact, and can be more closely attached between the valve plate 21 and the sealing cover 22, thereby effectively improving the sealing performance.

[0039] In the present application, the exhaust port 211 is multiple and is uniformly distributed around the axis of the mounting clamping groove. The exhaust port 211 is a fan ring structure, which can increase the outlet area. In the present embodiment, the total cross-sectional area of the exhaust port 211 is greater than or equal to 20 cm 2 , which ensures rapid exhaust and realizes internal and external pressure balance in the moment of pressure change, reduces or avoids explosion caused by excessive pressure difference.

[0040] A magnet mounting hole 212 is provided in the center of the valve plate 21, and a magnet is provided in the magnet mounting hole 212, which can attract the magnet of the sealing cover 22, so that the end face of the sealing cover 22 is attached to the bottom surface of the mounting clamping groove, and the second sealing ring is pressed tightly to realize the detachable connection of the sealing cover. When the internal pressure rises suddenly, the gas pressure pushes the valve plate to overcome the magnetic attraction and separate from the valve plate, so that the exhaust port 211 is connected to the outside, and then the internal gas pressure is discharged from the exhaust port 211 to realize the balance of internal and external gas pressure, avoid explosion caused by excessive pressure difference, and then realize explosion-proof and improve the safety in use. In order to reduce the processing difficulty and manufacturing cost, and facilitate assembly, the present embodiment further comprises a mounting seat 23, which is a rectangular structure as a whole. At the same time, the magnet mounting hole 212 is also rectangular, the head of the mounting seat 23 extends into the magnet mounting hole 212, and there is a gap between the outer wall of the mounting seat 23 and the inner wall of the magnet mounting hole. The end of the mounting seat 23 is flush with the end face of the mounting clamping groove. The magnet is arranged on the mounting seat 23, and a magnetic material capable of being attracted by the magnet is arranged in the sealing cover, such as steel and other metal materials. Two fixing legs 231 are arranged on the side wall of the mounting seat 23, which are sheet-shaped and can be attached to the rear end face of the valve plate 21. The fixing legs 231 are detachably mounted on the rear end of the valve plate 21 by screws. Therefore, a plurality of second mounting holes 214 are provided on the rear end of the valve plate 21 for connecting the fixing legs 231.

[0041] In the application, in order to realize autonomous exhaust (smoke), avoid internal smoke residue, a fan is further provided, specifically, four third mounting holes 210b are formed at the rear end of the valve plate, a male and female stud 24 is detachably mounted in the third mounting hole 210b, the male and female stud 24 includes a column body with a regular hexagonal cross section, one end of the column body is provided with a threaded body for connecting with the third mounting hole, the other end is provided with a threaded hole for mounting the fan, the length of the male and female stud 24 is greater than the thickness of the first door body 12, thus, the end of the male and female stud 24 extends to the outside of the first door body, the fan 25 is mounted at the end of the male and female stud 24, the air outlet end of the fan faces the exhaust port, for assisting in exhaust of smoke in emergency, improving the safety of maintenance, the triggering of the fan can be realized by a pressure sensor or a temperature sensor.

[0042] In order to improve the use safety, avoid the sealing cover from flying out due to large dynamic impact in emergency and causing harm to the surrounding personnel, in the embodiment, the sealing cover is connected with the valve plate through a connecting rope (not shown in the figure), the length of the connecting rope is reasonably designed, so that the sealing cover will not fly out and cause harm to the personnel when abnormally opened, at the same time, the setting of the connecting rope also allows the operator to manually pull open the sealing cover when necessary, and can prevent the loss of the sealing cover.

[0043] The liquid-cooled energy storage cabinet explosion-proof device sets an explosion-proof valve on the door body, when the energy storage cabinet occurs extreme conditions such as deflagration, the sealing cover of the explosion-proof valve can be opened and the exhaust port is opened, so as to rapidly release the internal pressure, avoid explosion caused by too large pressure difference, and ensure the structural integrity of the energy storage cabinet and personnel safety; the sealing cover is connected by magnetism, can realize automatic adsorption, has compact structure and is convenient to mount and dismount; the connecting rope is provided, so that the sealing cover will not fly out and cause harm to the personnel when abnormally opened, at the same time, the setting of the connecting rope also allows the operator to manually pull open the sealing cover when necessary, and can prevent the loss of the sealing cover; the sealing ring structure is designed and optimized, the elastic deformation ability is improved, the sealing property of the sealing cover is improved, at the same time, the installation adhesion of the sealing cover is improved; the fan is provided, can realize auxiliary exhaust of smoke, reduce internal smoke residue, and improve the safety of later door opening operation; the liquid-cooled energy storage cabinet explosion-proof device has compact structure and is convenient to install, greatly improves the use safety of the energy storage cabinet.

[0044] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the technical principle of the utility model, a number of improvements and refinements can be made, these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A liquid-cooled energy storage tank explosion-proof device, characterized in that: The utility model provides an energy storage cabinet explosion-proof valve, comprising a cabinet body, a main installation cavity for installing energy storage modules is arranged in the cabinet body, a first door body is hinged to the front opening end of the main installation cavity, the main installation cavity forms a sealed chamber through the first door body, and an explosion-proof valve is arranged on the first door body.

2. The explosion-proof device for a liquid-cooled energy storage tank according to claim 1, characterized by: The valve plate is provided with a magnet installation hole in the center, and a magnet capable of attracting the sealing cover is arranged in the magnet installation hole.

3. The explosion-proof device for a liquid-cooled energy storage tank according to claim 2, characterized by: Further comprising an installation seat, the head of the installation seat extends into the magnet installation hole, the magnet is arranged on the installation seat, the side wall of the installation seat is provided with a fixing leg, the fixing leg is sheet-shaped and can be attached to the rear end face of the valve plate, and the fixing leg is detachably installed on the rear end of the valve plate through screws.

4. The explosion-proof device for a liquid-cooled energy storage tank according to claim 3, characterized by: The outer wall of the installation seat and the inner wall of the magnet installation hole have a gap.

5. The explosion-proof device for liquid-cooled energy storage cabinet according to claim 1, characterized in that: The exhaust port is a plurality of and is evenly distributed around the axis of the installation clamping groove.

6. The explosion-proof device for a liquid-cooled energy storage tank of claim 1, wherein: The total cross-sectional area of the exhaust port is greater than or equal to 20 cm 2 .

7. The explosion-proof device for liquid-cooled energy storage cabinet according to claim 1, characterized in that: The valve plate comprises a circular plate body, the edge of the circular plate body extends outward and forms a lug, and a first installation hole for connecting with the first door body is arranged on the lug.

8. The explosion-proof device for liquid-cooled energy storage cabinet according to claim 7, characterized in that: The cross section of the second sealing ring is triangular, which comprises a V-shaped first sealing part, the head of the first sealing part can be in contact with the rear end face of the sealing cover, the two sides of the first sealing part extend backward and form connecting parts, the end parts of the connecting parts are bent towards each other and form two second sealing parts, and the end faces of the second sealing parts serve as sealing surfaces and can be in contact with the end faces of the second annular installation groove.

9. The explosion-proof device for liquid-cooled energy storage cabinet according to claim 1, characterized in that: The rear end of the valve plate is detachably provided with a plurality of female and male studs, the length of the female and male studs is greater than the thickness of the first door body, a fan is installed at the end of the female and male studs, and the air outlet end of the fan faces the exhaust port.

10. The explosion-proof device for a liquid-cooled energy storage tank of claim 1, wherein: The explosion-proof valve is arranged on the upper end of the first door body and close to the hinged end.

Images