A supercapacitor immersion type exhaust device

Abstract

The utility model relates to super capacitor energy storage technical field, concretely relates to a kind of super capacitor immersion type exhaust device, its technical key points are at: including capacitor device and container, the capacitor device includes box, the box is filled with immersion liquid, the top of the side edge of the vertical direction one side of the box is provided with exhaust device, the exhaust device includes overflow pipe, elbow and exhaust pipe, the exhaust pipe is directed upwards and is provided, exhaust valve is connected on the exhaust pipe, the exhaust valve is located the outside of the container. By exhaust valve setting in the outside of container, when one or more super capacity monomer in one of capacitor device inside appears thermal runaway phenomenon, the harmful gas or substance generated, with the whole exhaust pipe line is discharged to the outside of container, improve the safety of whole product, simultaneously with discharge immersion liquid, so that container inside does not need to clean the immersion liquid and monomer runaway harmful substance discharged, and then improve the maintainability of whole product.

Description

Technical Field

[0001] This utility model relates to the field of supercapacitor energy storage technology, specifically to a supercapacitor immersion exhaust device. Background Technology

[0002] With several fires at energy storage power stations in recent years, energy storage safety has become a major concern. As a result, immersion technology has emerged, which uses a high flash point and high ignition point immersion liquid to encapsulate supercapacitor cells. When a supercapacitor cell runs out of control, the sparks and heat generated are absorbed by the immersion liquid, reducing the risk of fire.

[0003] Existing submerged energy storage technology involves filling a sealed container containing multiple supercapacitor cells with submerged fluid and then installing a vent valve on the container cover. When a supercapacitor cell experiences thermal runaway and releases gas, the gas is discharged through the vent valve. While this serves the purpose of venting, the submerged fluid is also discharged. Furthermore, since the container is typically placed inside a shipping container, both the runaway gas from the cells and the submerged fluid are released inside the container. This makes the container interior extremely difficult to clean and maintain, and the high-temperature runaway gas released inside the container can damage other electrical components, creating another safety hazard. Utility Model Content

[0004] Therefore, the purpose of this application is to solve the technical problem in the prior art where the container body is located inside the container, and harmful gases and immersion liquids are discharged inside the container when the individual unit is out of control, making it extremely difficult to clean and maintain the inside of the container.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A supercapacitor immersion venting device includes a capacitor device and a container, wherein the capacitor device is located inside the container. The device is characterized in that: the capacitor device includes a housing filled with an immersion liquid; a venting device is provided on the top of one vertical side of the housing; the venting device includes an overflow pipe, an elbow, and a vent pipe; the overflow pipe is L-shaped, with its vertical section located inside the housing and its opening pointing upwards; the elbow connects the vent pipe and the overflow pipe; the vent pipe is located outside the housing and points upwards; and an vent valve is connected to the end of the vent pipe opposite the elbow, the vent valve being located outside the container.

[0007] Preferably, the top of the overflow pipe is provided with a plurality of overflow grooves, the overflow grooves being grooves formed by the inward indentation of the top edge of the overflow pipe.

[0008] Preferably, a liquid injection port is provided at the bottom of one side of the box in the vertical direction. The liquid injection port is used for injecting the immersion liquid, and a control valve is provided on the liquid injection port to control the injection speed of the immersion liquid.

[0009] Preferably, the injection port is a pipe welded and fixed to the side of the box body.

[0010] Preferably, the enclosure is a hollow cuboid, the enclosure is sealed, and the individual capacitors are arranged inside the enclosure to form a capacitor assembly.

[0011] Preferably, the exhaust valve has a pressure detection function, and the valve opens to release air when the pressure reaches a certain value.

[0012] Preferably, at least two capacitor devices are provided, and the two capacitor devices are arranged vertically. The elbow of the bottom capacitor device is L-shaped, and the elbow of the upper capacitor device is a T-junction. The vent pipe and the overflow pipe on the bottom capacitor device are connected by an L-shaped elbow, and the vent pipes and overflow pipes on the other capacitor devices are connected by elbows arranged in T-junctions. The T-junctions are also connected to the vent pipes on the adjacent capacitor devices below.

[0013] Preferably, the exhaust pipe on the top capacitor device extends upward through the container and outward, and the exhaust valve is connected to the top of the exhaust pipe of the top capacitor device.

[0014] Compared with the prior art, this application has the following beneficial effects:

[0015] By placing the vent valve on the outside of the container, when one or more overcapacitor cells in one of the multiple capacitor devices experience thermal runaway, the resulting harmful gases or substances are discharged to the outside of the container through the entire vent pipe, improving the safety of the entire product. At the same time, the immersion liquid is discharged, eliminating the need to clean the immersion liquid and harmful substances from the runaway cells inside the container, thereby improving the maintainability of the entire product. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a supercapacitor immersion exhaust device according to one embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram illustrating the connection principle of a supercapacitor immersion exhaust device according to one embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the capacitor device structure of a supercapacitor immersion exhaust device according to one embodiment of the present invention.

[0019] Figure 4 This is a partial cross-sectional schematic diagram of the capacitor device in one embodiment of the present invention, used to show the specific details of the exhaust device;

[0020] Figure 5 This is a schematic diagram of the overflow pipe in one embodiment of the present invention.

[0021] In the diagram, 1. Capacitor device; 11. Housing; 12. Individual capacitor; 13. Inlet; 131. Immersion liquid; 132. Control valve; 14. Exhaust device; 141. Exhaust pipe; 142. Elbow; 143. Overflow pipe; 1431. Overflow tank; 144. Exhaust valve; 2. Container. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1 A supercapacitor immersion exhaust device includes a capacitor device 1 and a container 2, wherein the capacitor device 1 is arranged vertically inside the container 2.

[0024] Please see Figure 1 and Figure 2 The container 2 is rectangular in shape, and a clearance hole is provided on the top of the container 2.

[0025] Please see Figure 3 and Figure 4 In one embodiment, the capacitor device 1 includes a housing 11, individual capacitors 12, an injection port 13, and an exhaust device 14. The housing 11 is generally a hollow cuboid and is sealed. The individual capacitors 12 are arranged within the housing 11 to form a capacitor assembly. The injection port 13 is located at the bottom of one vertical side of the housing bottom, and the exhaust device 14 is located above one vertical side of the housing 11. In another embodiment, the injection port 13 is located below the exhaust device 14.

[0026] Please see Figure 3 and Figure 4 In one embodiment, the capacitor cells 12 are arranged in an array, and the housing 11 is also provided with known structures such as positive and negative terminals and communication structures.

[0027] The injection port 13 is a pipe welded and fixed to the side of the box 11. The injection port 13 is used to input immersion liquid 131 into the box 11. In one embodiment, a control valve 132 is provided on the injection port 13 to control the inflow rate of immersion liquid 131.

[0028] Please see Figure 3 and Figure 4The exhaust device 14 includes an exhaust pipe 141, an elbow 142, and an overflow pipe 143. The elbow 142 and the overflow pipe 143 are both L-shaped. The horizontal sections of the elbow 142 and the overflow pipe 143 are interconnected. The vertical section of the overflow pipe 143 is located inside the housing 11 and its opening points upward. The horizontal section of the overflow pipe 143 extends to the side of the housing 11 and protrudes from the side wall of the housing 11. The elbow 142 is connected to one end of the overflow pipe 143 that protrudes from the housing 11. The exhaust pipe 141 extends vertically upward and is located above the elbow 142. The exhaust pipe 141 is connected to the elbow 142.

[0029] In one implementation, please refer to Figure 2 The exhaust pipe 141 on the lower capacitor device 1 is connected to the elbow 142 on the adjacent capacitor device 1. The exhaust pipe 141 on the top capacitor device 1 passes through the clearance hole on the container 2 and extends outward. The top of the top capacitor device 1 is connected to an exhaust valve 144. The exhaust valve 144 has a pressure detection function. When the pressure reaches a certain value, the valve opens to release the air.

[0030] In one embodiment, the exhaust pipe 141 on the bottom capacitor device 1 is connected to the overflow pipe 143 via a bend 142, and the exhaust pipes 141 and overflow pipes 143 on the other capacitor devices 1 are connected via a tee pipe, which is also connected to the exhaust pipe 141 on the adjacent capacitor device 1 below.

[0031] In one implementation, please refer to Figure 5 The top of the vertical section of the overflow pipe 143 is provided with a plurality of overflow grooves 1431, and the overflow grooves 1431 are grooves formed by the inward indentation of the top edge of the overflow pipe 143.

[0032] Working principle:

[0033] The immersion fluid 131 is first filled into the tank 11 through the injection port 13. When the level of the immersion fluid 131 reaches or exceeds the overflow tank 1431, the excess overflow pipe 143 will show liquid flowing out, which can easily check whether the immersion fluid 131 is full. When the overcapacity cell experiences thermal runaway, a huge amount of harmful gas will be generated inside the cell, causing the internal pressure of the cell to surge. After the pressure reaches the critical value, the explosion-proof valve of the cell will be broken and opened; the gas will rush into the tank 11 instantly.

[0034] Because the density of the gas is less than that of the immersion liquid 131, a large amount of other substances will accumulate at the top of the box 11. Due to the influence of air pressure, excess gas will enter the exhaust valve 144 through the overflow pipe 143, the elbow 142, and the exhaust pipe 141. The exhaust valve 144 has a pressure detection function inside, and the valve can only be opened when the pressure reaches a certain value.

[0035] As the uncontrolled reaction of the monomer continues to release gas, the gas pressure inside the entire device will continue to increase. When the pressure reaches the opening pressure of the exhaust valve 144, the exhaust valve 144 will release gas. The exhaust is installed outside the container 2, which allows the harmful gases generated by the uncontrolled reaction of the overcapacity monomer to be discharged outside the entire device along with the immersion liquid 131. This prevents the harmful gases from causing secondary damage to the product, while improving the safety and maintainability of the product.

[0036] The supercapacitor immersion exhaust device provided in this application, by setting the exhaust valve 144 on the outside of the container 2, when one or more supercapacitor cells in one of the multiple capacitor devices 1 experience thermal runaway, the generated harmful gases or substances are discharged to the outside of the container 2 through the entire exhaust pipe 141, thereby improving the safety of the entire product. At the same time, the immersion liquid 131 is discharged, so that the inside of the container 2 does not need to be cleaned of the discharged immersion liquid 131 and the harmful substances from the runaway cells, thereby improving the maintainability of the entire product.

Claims

1. An ultracapacitor submersion exhaust device comprising a capacitive device and a container, the capacitive device located within the container, characterized by: The capacitor device includes a housing filled with an immersion liquid. A venting device is provided on the top of one vertical side of the housing. The venting device includes an overflow pipe, an elbow, and a vent pipe. The overflow pipe is L-shaped, with its vertical section located inside the housing and its opening pointing upwards. The elbow is used to connect the vent pipe and the overflow pipe. The vent pipe is located outside the housing and points upwards. An vent valve is connected to the end of the vent pipe away from the elbow. The vent valve is located outside the container.

2. A supercapacitor submersion exhaust device according to claim 1, wherein: The top of the overflow pipe is provided with several overflow grooves, which are grooves formed by the inward indentation of the top edge of the overflow pipe.

3. The supercapacitor immersion exhaust device according to claim 2, characterized in that: A liquid injection port is provided at the bottom of one side of the vertical direction of the box body. The liquid injection port is used for injecting the immersion liquid. A control valve is provided on the liquid injection port to control the injection speed of the immersion liquid.

4. The supercapacitor immersion exhaust device according to claim 3, characterized in that: The injection port is a pipe welded and fixed to the side of the box.

5. A supercapacitor immersion exhaust device according to claim 4, characterized in that: The enclosure is a hollow cuboid and is sealed. Individual capacitors are arranged inside the enclosure to form a capacitor cell group.

6. A supercapacitor immersion exhaust device according to claim 5, characterized in that: The exhaust valve has a pressure detection function, and it opens to release air when the pressure reaches a certain value.

7. A supercapacitor immersion exhaust device according to claim 6, characterized in that: At least two capacitor devices are provided, and the two capacitor devices are arranged vertically. The elbow of the bottom capacitor device is L-shaped, and the elbow of the top capacitor device is a T-shaped pipe. The vent pipe and the overflow pipe on the bottom capacitor device are connected by an L-shaped elbow. The vent pipes and overflow pipes on the other capacitor devices are connected by elbows arranged in T-shaped pipes. The T-shaped pipes are also connected to the vent pipes on the adjacent capacitor device below.

8. A supercapacitor immersion exhaust device according to claim 7, characterized in that: The exhaust pipe on the top capacitor device extends upward through the container and outwards, and the exhaust valve is connected to the top of the exhaust pipe of the top capacitor device.

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