Thermal runaway gas production monitoring device for lithium battery energy storage power station

Abstract

The invention discloses a lithium battery energy storage power station thermal runaway gas production monitoring device which comprises an energy storage container, a power station opening and closing door is arranged on the right side of the energy storage container, container ventilation nets are arranged on the side faces of the front side and the rear side of the energy storage container, and two sets of thermal failure monitoring assemblies arranged in a mirror image mode are fixedly assembled on the two sides in the energy storage container. Two groups of lithium battery packs, a dispatching control cabinet, an energy storage inverter, a fire-fighting assembly, a thermal failure battery waiting rack and a failed battery placing rack are fixedly assembled on the inner wall of the bottom plate of the energy storage container between the two groups of thermal failure monitoring assemblies; the energy storage inverter is placed on the leftmost side of the inner wall of a bottom plate of the energy storage container, thermal failure monitoring assemblies and a dispatching control cabinet are arranged on the right side of the energy storage inverter, the two sets of thermal failure monitoring assemblies are arranged in a mirror image staggered mode, and the dispatching control cabinet is fixedly arranged between the thermal failure monitoring assembly on the front side and the energy storage inverter; and a fire-fighting assembly is fixedly placed on the left side of the thermal failure monitoring assembly on the rear side.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal runaway monitoring, and in particular to a thermal runaway gas production monitoring device for a lithium battery energy storage power station. Background Art

[0002] Energy storage power stations are equipment systems that store, convert and release cyclic electrical energy through electrochemical cells or electromagnetic energy storage media. With the extensive application of lithium batteries in electric vehicles, energy storage systems and other fields, their safety issues have gradually attracted people's attention. Among them, the problem of thermal runaway gas production of lithium batteries is an important safety hazard. The English name of thermal runaway is thermal runaway, which refers to the chain reaction phenomenon caused by various inducements. The large amount of heat and harmful gases emitted by thermal runaway can cause battery fire and explosion. Through the combing of the internal chemical reactions of lithium batteries, it is found that lithium batteries will precipitate a variety of gases during the heating process, such as O2, CO2, C2H4, C4H10, POF3, C2H5F, PF5, H2, etc. In other words, different gases are the inevitable products of different chemical reactions. By detecting its gas production, early warning of thermal runaway lithium batteries can be given, thereby improving the safety of energy storage power stations.

[0003] Because the internal space of the energy storage power station is large, the existing monitoring devices cannot effectively monitor and analyze the internal conditions, and it is easy to miss something, which may cause the thermal runaway failure of the lithium battery, thereby triggering a chain reaction and causing property and economic losses. If large-scale inspections and monitoring are carried out, the inspection cycle will be too long, and the thermal runaway lithium battery will have sufficient reaction time, thereby causing a disaster. At the same time, when the existing monitoring devices detect that thermal runaway has occurred, they cannot effectively lock the lithium battery that has thermal runaway, and the lithium batteries adjacent to the runaway battery may be filled with reaction gases, resulting in misjudgment. In addition, the existing monitoring devices cannot effectively deal with the batteries that have thermal runaway, thereby causing unnecessary losses.

[0004] Therefore, it is necessary to provide a thermal runaway gas production monitoring device for a lithium battery energy storage power station to solve the above problems. Summary of the invention

[0005] To achieve the above object, the present invention provides the following technical solution, a thermal runaway gas production monitoring device for a lithium battery energy storage power station, comprising:

[0006] The energy storage container has a power station opening and closing door on the right side, and a container ventilation net on the front and rear sides. Two sets of thermal failure monitoring components are fixedly installed on both sides of the container in a mirror-image arrangement. Two sets of lithium battery packs, a dispatching control cabinet, an energy storage inverter, a fire-fighting component, a thermal failure battery waiting rack, and a failed battery placement rack are fixedly installed on the inner wall of the bottom plate of the energy storage container between the two sets of thermal failure monitoring components.

[0007] The energy storage inverter is placed on the leftmost side of the inner wall of the bottom plate of the energy storage container, and a thermal failure monitoring component and a dispatching control cabinet are arranged on the right side thereof. The two sets of thermal failure monitoring components are arranged in a mirror-like staggered manner, and a dispatching control cabinet is fixedly arranged between the front thermal failure monitoring component and the energy storage inverter, and a firefighting component is fixedly placed on the left side of the thermal failure monitoring component on the rear side. The thermal failure battery waiting rack and the failed battery placement rack are respectively placed at the two ends of the rightmost side of the inner wall of the bottom plate of the energy storage container;

[0008] A thermal failure battery access assembly is horizontally fixedly mounted on the inner wall of the top of the energy storage container.

[0009] Further, preferably, the thermal failure monitoring component comprises:

[0010] A fixed isolation plate is vertically fixedly installed on one side of the energy storage container, and a through hole corresponding to the container ventilation net is provided in the middle thereof. A fixed ring rail is fixedly installed on the outer side of the fixed isolation plate. The fixed ring rail is coaxial with the through hole, and a rotating ring is coaxially rotatably installed on the inner side thereof. A driving pulley is meshingly installed on the outer side of the rotating ring. The driving pulley is fixedly installed on the output shaft of the driving motor, and the driving motor is fixedly installed on the inner side of the fixed isolation plate.

[0011] Further, as a preference, three groups of air collecting capsules are fixedly arranged on the inner side of the rotating ring, and air holes are opened on the outer side and back side of the three groups of air collecting capsules, wherein the rotating ring is provided with three groups of equally spaced through holes on the ring surface, and the fixed ring rail is provided with two groups of through holes, the holes on the rotating ring and the fixed ring rail correspond to the air holes on the outer side of the air collecting capsules, and the holes on the back side correspond to the air inlet holes on the inner side of the fixed isolation plate.

[0012] Further, preferably, the angles between the central axes of the two groups of through holes on the fixed ring rail and the projections of the center of the air inlet hole and the center of gravity of the fixed ring rail are all 120°, and a vacuum pump and a first gas content analyzer are respectively provided at the two groups of through holes.

[0013] Further, preferably, the lithium battery pack comprises:

[0014] A fixed battery shell is fixedly mounted on the inner wall of the bottom of the energy storage container, and an array is provided with multiple groups. A shell closing groove is provided on the shell, and an elastic closing plate is slidably mounted in the shell closing groove. Telescopic spring rods are fixedly mounted at both ends of the inner side of the elastic closing plate, and the other end of the telescopic spring rod is fixedly embedded in the fixed battery shell;

[0015] A battery positioning groove is arranged on the inner side of the fixed battery shell, on which a battery assembly is fixedly assembled, and a battery limiting block is arranged on the other side of the battery positioning groove.

[0016] Further, preferably, the battery assembly comprises:

[0017] The lithium battery has four groups of positioning and ventilation blocks arranged on its outer side so that it can be fixedly placed inside the fixed battery shell, and four groups of suction cup fixing grooves and two groups of portable handles are fixedly arranged on its front side.

[0018] Further, as a preference, the thermal failure battery access assembly comprises:

[0019] There are two groups of fixed blocks symmetrically arranged, both of which are fixedly assembled on the inner wall of the top of the energy storage container. Multiple groups of fixed rails are fixedly assembled between the two groups of fixed blocks. Two groups of rail sliders are slidably arranged on the fixed rails. Mechanical arms are assembled at the lower ends of the two groups of rail sliders. Suction cup assemblies are fixedly assembled at the upper and lower ends of the mechanical arms. Four groups of suction cups are arranged on the suction cup assembly, which correspond to the four groups of suction cup fixing grooves on the battery assembly.

[0020] Further, preferably, a closed telescopic sleeve is fixedly mounted on the front side of the suction cup assembly, a second gas content analyzer is fixedly mounted on the other side thereof, and a battery shell closing cover is fixedly mounted on the front end of the closed telescopic sleeve.

[0021] Further, preferably, the fire fighting component comprises:

[0022] A compressed gas tank is fixedly mounted on the inner wall of the bottom of the energy storage container. A fire pump and a battery cooling tank are also mounted on the inner wall of the bottom of the energy storage container. Both the compressed gas tank and the battery cooling tank are connected to the fire pump through a water pipe.

[0023] An automatic opening and closing cover is arranged on the upper end of the compressed gas tank.

[0024] Compared with the prior art, the present invention provides a thermal runaway gas production monitoring device for a lithium battery energy storage power station, which has the following beneficial effects:

[0025] In the present invention, a thermal failure monitoring component is arranged at the ventilation net of the container, and a fixed isolation plate is arranged on the upper inner side, so that the gas inside the device is exchanged with the outside through the thermal failure monitoring component, so as to facilitate the real-time extraction of gas for monitoring, so as to judge the specific situation inside the device, and before the detection gas enters therein, it will be vacuumized by a vacuum pump to prevent the gas inside from affecting the detection result. When it detects that the gas content inside the device is abnormal, it will drive the thermal failure battery placement component to detect the lithium battery pack one by one, and during the detection process, the detected battery will enter a closed environment, and the detection of the second gas content analyzer can quickly detect whether the gas content inside is abnormal, and at the same time, it can be ruled out whether it is affected by external factors, so as to accurately and quickly find the battery with thermal runaway, and place it in the fire protection component for processing. If more than one group has thermal failure, the redundant ones will be placed on the thermal failure battery waiting rack at intervals. After the processing is completed, those that can continue to be used will be placed back to their original positions, and those that cannot continue to be used will be placed on the failed battery placement rack to be replaced when the staff inspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the external structure of the device;

[0027] Figure 2 Schematic diagram of the internal structure of the device;

[0028] Figure 3 This is a schematic diagram of the structure of the thermal failure monitoring component of a power station;

[0029] Figure 4 It is a schematic diagram of the front axonometric view of the lithium battery pack structure;

[0030] Figure 5 This is the rear axonometric view of the lithium battery pack structure;

[0031] Figure 6 It is a schematic diagram of the battery assembly structure;

[0032] Figure 7 This is a schematic diagram of the structure of the thermal failure battery removal and placement assembly;

[0033] Figure 8 It is a schematic diagram of the fire protection component structure;

[0034] In the figure: 1. Energy storage container; 2. Thermal failure monitoring component; 3. Lithium battery pack; 4. Dispatching control cabinet; 5. Energy storage inverter; 6. Thermal failure battery pick-up and placement component; 7. Fire protection component; 8. Thermal failure battery waiting rack; 9. Failed battery placement rack; 10. Power station opening and closing door; 11. Container ventilation net; 21. Fixed isolation plate; 22. Fixed ring rail; 23. Rotating ring; 24. Driving pulley; 25. Driving motor; 26. Gas collection cabin; 27. Vacuum pump; 28. First gas content analyzer; 29. ​​Air inlet; 31. Fixed battery shell; 32. Shell closing groove; 33, elastic closing plate; 34, telescopic spring rod; 35, battery positioning groove; 36, battery assembly; 37, battery limit block; 361, lithium battery; 362, suction cup fixing groove; 363, portable handle; 364, positioning ventilation block; 61, fixing block; 62, fixing track; 63, track slider; 64, mechanical arm; 65, suction cup assembly; 66, closed telescopic sleeve; 67, second gas content analyzer; 68, battery shell closing cover; 71, compressed gas tank; 72, fire pump; 73, battery cooling tank; 74, automatic opening and closing cover. DETAILED DESCRIPTION

[0035] See also Figures 1 to 8 The present invention provides a thermal runaway gas production monitoring device for a lithium battery energy storage power station, comprising:

[0036] The energy storage container 1 has a power station opening and closing door 10 on its right side, and a container ventilation net 11 on its front and rear sides. Two sets of thermal failure monitoring components 2 are fixedly installed on both sides of the interior thereof in a mirror-image arrangement. Two sets of lithium battery packs 3, a dispatching control cabinet 4, an energy storage inverter 5, a fire protection component 7, a thermal failure battery waiting rack 8, and a failed battery placement rack 9 are fixedly installed on the inner wall of the bottom plate of the energy storage container 1 between the two sets of thermal failure monitoring components 2;

[0037] The energy storage inverter 5 is placed on the leftmost side of the inner wall of the bottom plate of the energy storage container 1, and a thermal failure monitoring component 2 and a dispatching control cabinet 4 are arranged on the right side thereof. The two sets of thermal failure monitoring components 2 are arranged in a mirror-like staggered manner, and a dispatching control cabinet 4 is fixedly arranged between the front thermal failure monitoring component 2 and the energy storage inverter 5, and a firefighting component 7 is fixedly placed on the left side of the thermal failure monitoring component 2 on the rear side. The thermal failure battery waiting rack 8 and the failed battery placement rack 9 are respectively placed on the rightmost ends of the inner wall of the bottom plate of the energy storage container 1;

[0038] A thermal failure battery access assembly 6 is horizontally fixedly mounted on the inner wall at the top of the energy storage container 1;

[0039] As a preferred embodiment, the thermal failure monitoring component 2 is arranged at the container ventilation network 11. When the gas inside the device is exchanged with the outside world, it passes through the thermal failure monitoring component 2, so that it is convenient to extract gas in real time for monitoring, so as to judge the specific situation inside the device. When it detects that the gas content inside the device is abnormal, it will drive the thermal failure battery placement component 3 to detect the lithium battery group 4 one by one, and during the detection process, the detected battery will enter a closed environment. By driving the detection of the thermal failure battery placement component 3, it can be quickly detected whether the gas content inside is abnormal, and at the same time, whether it is affected by external factors, and then accurately and quickly find the battery that has thermal runaway, and place it in the fire protection component 7 for processing. If more than one group has thermal failure, the excess ones will be placed on the thermal failure battery 8 waiting rack at intervals. After the processing is completed, those that can continue to be used will be placed back to their original positions. Those that cannot continue to be used will be placed on the failed battery placement rack 9 to be replaced when the staff inspects.

[0040] Further, the thermal failure monitoring component 2 includes:

[0041] A fixed isolation plate 21 is vertically fixedly mounted on one side of the energy storage container 1, wherein a through hole corresponding to the container ventilation net 11 is provided in the middle thereof, a fixed ring rail 22 is fixedly mounted on the outer side of the fixed isolation plate 21, the fixed ring rail 22 is coaxial with the through hole, and a rotating ring 23 is coaxially rotatably mounted on the inner side thereof, a driving pulley 24 is meshedly mounted on the outer side of the rotating ring 23, the driving pulley 24 is fixedly mounted on the output shaft of a driving motor 25, and the driving motor 25 is fixedly mounted on the inner side of the fixed isolation plate 21;

[0042] As a preferred embodiment, the fixed isolation plate 21 can effectively change the gas flow direction inside the device, so that when the gas in the device exchanges gas with the outside, it can and can only pass through the through holes between the fixed ring rails 22, thereby facilitating the thermal failure detection component 2 to detect the gas and making the detection result more real and effective. The drive motor 25 will drive the drive pulley 24 to drive the rotating ring 23 to rotate counterclockwise along the inner track of the fixed ring rail 22, and the drive motor rotates periodically, and the rotation distance of each cycle is 1 / 3 of the rotating ring 23.

[0043] Further, three groups of gas collecting capsules 26 are fixedly arranged on the inner side of the rotating ring 23, and the three groups of gas collecting capsules 26 are provided with air holes on the outer side and back side, wherein the rotating ring 23 is provided with three groups of through holes with equal spacing on the ring surface, and the fixed ring rail 22 is provided with two groups of through holes, and the holes on the rotating ring 23 and the fixed ring rail 22 correspond to the air holes on the outer side of the gas collecting capsule 26, and the holes on the back side correspond to the air inlet holes 29 on the inner side of the fixed isolation plate 21;

[0044] As a preferred embodiment, the initial positions of the rotating ring 23 and the three groups of gas collecting chambers 26 are Figure 3 As shown in FIG. 1 , one group of positions corresponds to the driving pulley 24 , and the other two groups are symmetrical with respect to the driving pulley 24 .

[0045] Furthermore, the included angles between the central axes of the two groups of through holes on the fixed ring rail 22 and the projection of the center of the air inlet hole 29 and the center of gravity of the fixed ring rail 22 are all 120°, and the two groups of through holes are respectively provided with a vacuum pump 27 and a first gas content analyzer 28;

[0046] As a preferred embodiment, in the initial state, only the vacuum pump 27 works normally, and the corresponding gas collecting chamber 26 is subjected to vacuum treatment to prevent the original gas therein from affecting the gas detection, thereby reducing the accuracy of the data. After the stop cycle (the stop cycle time is the maximum value of the vacuum pump 27 vacuuming time, the air intake time of the air inlet 29 and the detection time of the first gas content analyzer 28), the drive motor is started to drive the rotating ring 23 to rotate 120° (because the rotating ring 23 and the fixed ring rail 22 form a relatively closed environment, there is no requirement for the rotation time), the vacuum pump 27 continues to perform vacuum treatment for the corresponding gas collecting chamber 26, and the air inlet 29 coincides with the hole opened on the back of the corresponding gas collecting chamber 26. The gas in the device flows into the gas collecting chamber 26 under a large pressure difference, until At the end of the stop cycle, the drive motor starts, driving the rotating ring 23 to continue rotating 120°, and the vacuum pump 27 continues to perform vacuum treatment on the corresponding gas collecting chamber 26. The air inlet 29 also coincides with the hole opened on the back of the corresponding gas collecting chamber 26. The gas in the device flows into the gas collecting chamber 26 under a large air pressure difference. At the same time, the gas collecting chamber 26 containing the gas in the device corresponds to the first gas content analyzer 28. The first gas content analyzer 28 detects the gas therein and feeds back the data until the end of the stop cycle. It cycles in sequence and continuously detects the gas inside the device. The shell calculates the probability of thermal effect of the lithium battery based on local climate and other conditions, thereby dividing the monitoring period within a scientific range to save energy loss while taking into account thermal effect monitoring.

[0047] Furthermore, the lithium battery pack 3 comprises:

[0048] A fixed battery shell 31 is fixedly mounted on the inner wall of the bottom of the energy storage container 1, and a plurality of arrays are provided therein, and a shell closing groove 32 is provided on the shell, and an elastic closing plate 33 is slidably mounted in the shell closing groove 32, and telescopic spring rods 34 are fixedly mounted at both ends of the inner side of the elastic closing plate 33, and the other end of the telescopic spring rod 34 is fixedly embedded in the fixed battery shell 31;

[0049] A battery positioning groove 35 is provided inside the fixed battery shell 31, on which a battery assembly 36 is fixedly mounted, and a battery limiting block 37 is provided on the other side of the battery positioning groove 35;

[0050] As a preferred embodiment, the four groups of elastic sealing plates 33 will move inward under the action of external force, and while compressing the telescopic spring rod 34, the back side of the fixed battery shell 31 will be sealed, thereby sealing it when the thermal failure battery removal and placement component 6 is tested, eliminating the interference of foreign gas, and then accurately and efficiently finding out the exact location of the battery that has a thermal effect.

[0051] Further, the battery assembly 36 includes:

[0052] The lithium battery 361 has four sets of positioning and ventilation blocks 364 arranged on its outer side, so that it is fixedly placed inside the fixed battery shell 31, and four sets of suction cup fixing grooves 362 and two sets of portable handles 363 are fixedly arranged on its front side;

[0053] As a preferred embodiment, the positioning ventilation block 364 is arranged so that there is a certain distance between the lithium battery 361 and the inner walls of the fixed battery shell 31, thereby facilitating the heat dissipation of the lithium battery and reducing the probability of the battery generating thermal effects to a certain extent. The suction cup fixing groove 362 is arranged to facilitate the removal and placement of the thermal failure battery removal and placement assembly 6, and the portable handle is arranged to facilitate replacement by the staff.

[0054] Further, the thermal failure battery access assembly 6 comprises:

[0055] Two groups of fixed blocks 61 are symmetrically arranged, and both are fixedly assembled on the inner wall of the top of the energy storage container 1. Multiple groups of fixed rails 62 are fixedly assembled between the two groups of fixed blocks 61. Two groups of rail sliders 63 are slidably arranged on the fixed rails 62. The lower ends of the two groups of rail sliders 63 are both equipped with mechanical arms 64. The upper and lower ends of the mechanical arms 64 are fixedly equipped with suction cup assemblies 65. Four groups of suction cups are arranged on the suction cup assembly 65, and they correspond to the four groups of suction cup fixing grooves 362 on the battery assembly 36.

[0056] As a preferred embodiment, among the two groups of the robotic arms 64, the robotic arm 64 on the left and its components are only responsible for detection, and feed back the numbers of the detected battery packs that produce thermal effects, so that the robotic arm 64 and its components can process them. The robotic arm 64 on the left and its components can greatly improve the detection efficiency of the thermal failure battery picking and placing component 6, and the four groups of suction cups arranged thereon corresponding to the four groups of suction cup fixing grooves 362 can more firmly grasp the lithium battery 361 to prevent it from being damaged due to falling off.

[0057] Furthermore, a closed telescopic sleeve 66 is fixedly mounted on the front side of the suction cup assembly 65, a second gas content analyzer 67 is fixedly mounted on the other side thereof, and a battery shell closed cover 68 is fixedly mounted on the front end of the closed telescopic sleeve 66;

[0058] As a preferred embodiment, a telescopic rod is provided in the closed telescopic sleeve 66, which ensures that the battery shell closing cover 68 always remains parallel to the suction cup assembly 65 when it is extended and retracted. The battery shell closing cover 68 can push the elastic closing plate 33 on the lithium battery pack 3 to shrink, and after it is fully shrunk, it fits perfectly with the fixed battery shell 31 to form a closed environment and eliminate interference factors.

[0059] Further, the fire protection component 7 includes:

[0060] A compressed gas tank 71 is fixedly mounted on the inner wall of the bottom of the energy storage container 1. A fire pump 72 and a battery cooling tank 73 are also mounted on the inner wall of the bottom of the energy storage container 1. The compressed gas tank 71 and the battery cooling tank 73 are both connected to the fire pump 72 through a water pipe.

[0061] The upper end of the compressed gas tank 71 is provided with an automatic opening and closing cover 74;

[0062] As a preferred embodiment, the compressed gas tank 71 is filled with perfluorohexanone fire extinguishing agent. This type of fire extinguishing gas will not cause damage to the battery cluster. It is colorless and odorless. It is a clean gas fire extinguishing agent that mainly absorbs heat physically and has a high heat capacity. At a suitable concentration, the fire extinguishing agent forms a gaseous mixture with the air after being released, absorbing enough heat to reduce the ambient temperature to below the extinguishing temperature point. The thermal failure battery placement component 6 places the lithium battery 361 that has a thermal effect in the battery cooling tank 71, and the automatic opening and closing cover 74 is closed. The fire pump 72 introduces the perfluorohexanone in the compressed gas tank 71 into the battery cooling tank 73. After cooling is completed, the automatic opening and closing cover 74 is opened, and the thermal failure battery placement component 6 takes out the lithium battery 361 therein and tests it. If it can continue to be used, it is placed back in place. If it cannot continue to be used, it is placed on the failed battery placement rack 9 to be replaced during the staff's inspection.

[0063] When implemented specifically, the following steps are included: the thermal failure monitoring component 2 is arranged at the container ventilation net 11, and a fixed isolation plate 21 is arranged on the upper inner side, so that the gas inside the device is exchanged with the outside through the thermal failure monitoring component 2, so that it is convenient to extract gas in real time for monitoring, so as to judge the specific situation inside the device, and before the detection gas enters it, it will be vacuumized by the vacuum pump 27 to prevent the gas inside from affecting the detection result. When it detects that the gas content inside the device is abnormal, it will drive the thermal failure battery pick-up and placement component 6 to detect the lithium battery group 3 one by one, and during the detection process, the detected battery will enter a closed environment, and the detection of the second gas content analyzer 67 can quickly detect whether the gas content inside is abnormal, and at the same time exclude whether it is affected by external factors, so as to accurately and quickly find the battery with thermal runaway, and place it in the fire protection component 7 for processing. If more than one group has thermal failure, the redundant ones will be placed on the thermal failure battery waiting rack 8 at intervals. After the processing is completed, those that can continue to be used will be placed back to their original positions, and those that cannot continue to be used will be placed on the failed battery placement rack 9 to be replaced when the staff patrols.

[0064] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A thermal runaway gas production monitoring device for a lithium battery energy storage power station, characterized in that: include: An energy storage container (1) is provided with a power station opening and closing door (10) on the right side thereof, and a container ventilation net (11) is provided on the side surfaces of the front and rear sides thereof, and two groups of thermal failure monitoring components (2) arranged in a mirror image are fixedly installed on both sides of the interior thereof, and two groups of lithium battery packs (3), a dispatching control cabinet (4), an energy storage inverter (5), a fire protection component (7), a thermal failure battery waiting rack (8), and a failed battery placement rack (9) are fixedly installed on the inner wall of the bottom plate of the energy storage container (1) between the two groups of thermal failure monitoring components (2); The energy storage inverter (5) is placed on the leftmost side of the inner wall of the bottom plate of the energy storage container (1), and a thermal failure monitoring component (2) and a dispatching control cabinet (4) are arranged on the right side thereof. The two groups of thermal failure monitoring components (2) are arranged in a mirror-like manner, and a dispatching control cabinet (4) is fixedly arranged between the front thermal failure monitoring component (2) and the energy storage inverter (5). A firefighting component (7) is fixedly placed on the left side of the thermal failure monitoring component (2) on the rear side. The thermal failure battery waiting rack (8) and the failed battery placement rack (9) are respectively placed at the two ends of the rightmost side of the inner wall of the bottom plate of the energy storage container (1); A thermal failure battery removal assembly (6) is horizontally fixedly mounted on the inner wall of the top of the energy storage container (1).

2. A thermal runaway gas production monitoring device for a lithium battery energy storage power station according to claim 1, characterized in that: The thermal failure monitoring component (2) comprises: A fixed isolation plate (21) is vertically fixedly mounted on one side of the energy storage container (1), wherein a through hole corresponding to the container ventilation net (11) is provided in the middle thereof, a fixed ring rail (22) is fixedly mounted on the outer side of the fixed isolation plate (21), the fixed ring rail (22) is coaxial with the through hole, and a rotating ring (23) is coaxially rotatably mounted on the inner side thereof, a driving pulley (24) is meshedly mounted on the outer side of the rotating ring (23), the driving pulley (24) is fixedly mounted on the output shaft of a driving motor (25), and the driving motor (25) is fixedly mounted on the inner side of the fixed isolation plate (21).

3. A thermal runaway gas production monitoring device for a lithium battery energy storage power station according to claim 2, characterized in that: Three groups of air collecting capsules (26) are fixedly arranged on the inner side of the rotating ring (23), and the three groups of air collecting capsules (26) are provided with air holes on the outer side and back side, wherein the rotating ring (23) is provided with three groups of through holes with equal spacing on the ring surface, and the fixed ring rail (22) is provided with two groups of through holes, the holes on the rotating ring (23) and the fixed ring rail (22) are corresponding to the air holes on the outer side of the air collecting capsule (26), and the holes on the back side thereof are corresponding to the air inlet holes (29) on the inner side of the fixed isolation plate (21).

4. A thermal runaway gas production monitoring device for a lithium battery energy storage power station according to claim 3, characterized in that: The included angles between the central axes of the two groups of through holes on the fixed ring rail (22) and the projection of the center of the air inlet hole (29) and the center of gravity of the fixed ring rail (22) are all 120°, and a vacuum pump (27) and a first gas content analyzer (28) are respectively provided at the two groups of through holes.

5. A thermal runaway gas production monitoring device for a lithium battery energy storage power station according to claim 1, characterized in that: The lithium battery pack (3) comprises: A fixed battery shell (31) is fixedly mounted on the inner wall of the bottom of the energy storage container (1), and a plurality of groups of the fixed battery shells are arranged in an array. A shell closing groove (32) is provided on the shell, and an elastic closing plate (33) is slidably mounted in the shell closing groove (32). Telescopic spring rods (34) are fixedly mounted at both ends of the inner side of the elastic closing plate (33), and the other end of the telescopic spring rod (34) is fixedly embedded in the fixed battery shell (31); A battery positioning groove (35) is provided inside the fixed battery shell (31), on which a battery assembly (36) is fixedly mounted, and a battery limiting block (37) is provided on the other side of the battery positioning groove (35).

6. A thermal runaway gas production monitoring device for a lithium battery energy storage power station according to claim 5, characterized in that: The battery assembly (36) comprises: The lithium battery (361) is provided with four groups of positioning ventilation blocks (364) on its outer side so that it can be fixedly placed inside the fixed battery shell (31), and four groups of suction cup fixing grooves (362) and two groups of portable handles (363) are fixedly provided on its front side.

7. A thermal runaway gas production monitoring device for a lithium battery energy storage power station according to claim 1, characterized in that: The thermal failure battery access assembly (6) comprises: Two groups of fixed blocks (61) are symmetrically arranged and fixedly mounted on the inner wall of the top of the energy storage container (1). A plurality of fixed rails (62) are fixedly mounted between the two groups of fixed blocks (61). Two groups of rail sliders (63) are slidably mounted on the fixed rails (62). Mechanical arms (64) are mounted at the lower ends of the two groups of rail sliders (63). Suction cup assemblies (65) are fixedly mounted at the upper and lower ends of the mechanical arms (64). Four groups of suction cups are mounted on the suction cup assemblies (65), which correspond to the four groups of suction cup fixing grooves (362) on the battery assembly (36).

8. A thermal runaway gas production monitoring device for a lithium battery energy storage power station according to claim 7, characterized in that: The front side of the suction cup assembly (65) is fixedly equipped with a closed telescopic sleeve (66), the other side thereof is fixedly equipped with a second gas content analyzer (67), and the front end of the closed telescopic sleeve (66) is fixedly equipped with a battery shell closing cover (68).

9. A thermal runaway gas production monitoring device for a lithium battery energy storage power station according to claim 1, characterized in that: The fire fighting assembly (7) comprises: A compressed gas tank (71) is fixedly mounted on the inner wall of the bottom of the energy storage container (1); a fire pump (72) and a battery cooling tank (73) are also mounted on the inner wall of the bottom of the energy storage container (1); the compressed gas tank (71) and the battery cooling tank (73) are both connected to the fire pump (72) via a water pipe; The upper end of the compressed gas tank (71) is provided with an automatic opening and closing cover (74).

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