Energy storage power station battery safety monitoring device and method based on particle component detection

Abstract

The invention belongs to the technical field of energy storage batteries, and particularly relates to an energy storage power station battery safety monitoring device and method based on particle component detection. Comprising a battery rack located in the energy storage power station, battery packs are installed on the upper layer and the lower layer of the battery rack, and the corners of the battery packs correspond to openings of the battery rack; the top and the bottom of the battery rack are fixedly connected with a top plate and a bottom plate respectively, and a gas control mechanism is arranged between the top plate and the bottom plate; the air control mechanism comprises two ventilation pipes which are respectively positioned on two sides of the battery rack, and the side walls of two ends of each ventilation pipe are respectively rotationally connected with the top plate and the bottom plate; according to the invention, all-directional safety monitoring and early warning of the battery pack are realized, and heat dissipation treatment can be carried out while heat dissipation is taken into consideration; according to the invention, accurate and safe monitoring and sufficient heat dissipation can be carried out on different levels of battery packs by one particle detection box, and meanwhile, the influence of gas with particles on the monitoring result of the monitored battery packs on the same side in the heat dissipation process is avoided, so that the monitoring accuracy is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage batteries, and particularly relates to an energy storage power station battery safety monitoring device and method based on particle composition detection. Background Art

[0002] An energy storage battery is a device used to store electrical energy, usually used to balance the difference between power supply and demand. It stores electrical energy in the battery and releases it when needed to ensure the stability of the power system. Energy storage batteries are widely used in the storage of renewable energy (such as solar and wind energy), the regulation of household and industrial electricity, and power load management. In the automotive field, energy storage batteries are particularly important, especially in electric vehicles, where the battery provides power to replace traditional fuel. Energy storage batteries are usually secondary batteries, that is, rechargeable batteries, which can be charged and discharged multiple times, have a long service life, and high energy conversion efficiency.

[0003] Chinese Patent with application number 202211377849.1 provides an energy storage battery heat dissipation device and battery box. By setting a partition with a sandwich structure in the battery box, the heat transfer between adjacent battery modules is effectively blocked. At the same time, the thermal runaway monitoring signal in a single battery module is quickly exported and dissipated. In addition, the setting of the partition effectively limits the expansion of the battery module to both sides during thermal runaway, minimizing the impact on adjacent modules. The battery partition includes a middle heat insulation layer and heat conduction layers located on both sides of the heat insulation layer respectively. The partition has a sandwich composite structure design with a middle heat insulation layer and two side heat conduction layers. The heat insulation layer effectively isolates the heat transfer between adjacent battery modules, and at the same time, through the design of the heat conduction layer, the thermal runaway of the battery module can be quickly exported.

[0004] When monitoring the thermal runaway of a battery pack, the fastest way is to monitor through a particle detector. However, the particle detector is too sensitive and it is difficult to carry out heat dissipation simultaneously, which is easy to interfere with the monitoring results. At the same time, for the batteries in an energy storage power station, there are often a large number of multi-layer ones. It is difficult for a monitoring device to monitor all aspects and quickly and accurately monitor, and it is impossible to quickly find the specific battery pack with thermal runaway. Setting up multiple monitoring devices is too costly. And how to ensure the accuracy of monitoring is also the focus of research. Summary of the Invention

[0005] To address the deficiencies of the existing technology, the present invention provides an energy storage power station battery safety monitoring device and method based on particle composition detection. Through the cooperation of the monitoring mechanism with the separation box and the filter box mechanism, the present invention not only realizes the comprehensive safety monitoring and early warning of the battery pack, but also takes into account heat dissipation and conducts heat dissipation treatment simultaneously, avoiding safety problems such as fires caused by battery thermal runaway; through the cooperation of the air control mechanism and the monitoring mechanism, the present invention not only realizes accurate safety monitoring and sufficient heat dissipation of battery packs at different levels with a single particle detection box, but also avoids the monitoring results of the battery packs on the same side being affected by the gas with particles during the heat dissipation process, thus ensuring monitoring accuracy; through the structural design of the air control mechanism, the present invention not only realizes the comprehensive monitoring of the battery pack, but also enables the two ventilation pipes to always move in opposite directions, thereby ensuring that monitoring and heat dissipation do not interfere with each other and further improving monitoring accuracy.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] An energy storage power station battery safety monitoring device based on particle composition detection, comprising a battery rack located in the energy storage power station. Battery packs are installed on multiple upper and lower layers of the battery rack, and the corners of the battery packs correspond to the openings of the battery rack; the top and bottom of the battery rack are respectively fixedly connected with a top plate and a bottom plate, and an air control mechanism is provided between the top plate and the bottom plate; the air control mechanism includes two ventilation pipes respectively located on both sides of the battery rack, and the two side walls of the ends of the ventilation pipes are respectively rotatably connected with the top plate and the bottom plate; a plurality of pipe orifices are evenly communicated on the side wall of the ventilation pipe, and the pipe orifices are correspondingly aligned with the battery packs; the bottom ends of the two ventilation pipes are communicated through a filter box mechanism, and a separation box is communicated at the top end of each ventilation pipe, and a separation net is hermetically inserted on the separation box; the two separation boxes are interconnected through a monitoring mechanism, and the monitoring mechanism includes a particle detection box. The two sides of the particle detection box are fixedly communicated with the adjacent separation boxes through connecting pipes respectively; an air pump is installed on the connecting pipe.

[0008] Further, a through hole is opened at the bottom of the separation box, and the top end of the ventilation pipe is located in the through hole; a sliding hole is opened at the top of the separation box, and an adjusting rod is slidably connected to the sliding hole; the adjusting rod extends into the ventilation pipe and a notch is opened at the bottom end, and sliding grooves are symmetrically and vertically opened on the periphery of the notch; a regulating ring is fixedly connected to the bottom end of the adjusting rod, and the side wall of the regulating ring is slidably connected with the ventilation pipe, and a plurality of ventilation holes are evenly opened on the regulating ring; a sliding rod is arranged on the notch at the bottom end of the adjusting rod, a slider is fixedly arranged on the outer side wall of the upper end of the sliding rod, and the slider is slidably connected with the corresponding sliding groove; a closing disc is fixedly arranged at the lower end of the sliding rod.

[0009] Furthermore, a lifting mechanism is fixedly connected to the top end of the adjusting rod. The lifting mechanism includes an electric telescopic rod fixedly installed on the top plate. The top ends of the two adjusting rods are jointly fixedly connected to an adjusting plate, and the telescopic end of the electric telescopic rod is fixedly connected to the adjusting plate.

[0010] Further, the connecting pipe is a three-way pipe. Both ends of the connecting pipe are connected to the corresponding separation boxes, and an air pump is installed at one of the two ends. The remaining end of the connecting pipe is connected to the particle detection box. A three-way valve is installed in the middle of the connecting pipe.

[0011] Further, a bottom box is fixedly provided at the bottom of the bottom plate. A driven gear is fixedly provided on the side wall of the bottom end of the ventilation pipe. A forward and reverse motor is fixedly installed in the bottom box. The output end of the forward and reverse motor is fixedly connected to a driving gear. One of the driven gears is directly meshed with the driving gear, and the other driven gear is meshed with a second driven gear. The second driven gear is meshed with the driving gear. The second driven gear is rotationally connected to the bottom of the bottom plate through a gear shaft.

[0012] Furthermore, the filter box mechanism includes a main pipeline. The bottom ends of the ventilation pipes are all rotationally connected to a main pipeline through a rotating sealing ring. The other end of the main pipeline is fixedly communicated with the side wall of a branch pipeline. The two branch pipelines are fixedly communicated through a filter box. A filter block is arranged in the filter box.

[0013] Furthermore, a through groove is opened on one side of the bottom box. A receiving groove is opened on one side of the filter box and the receiving groove passes through the through groove and is arranged outward. A cover plate is provided on the receiving groove. A plugging frame is fixedly provided on the side of the cover plate close to the receiving groove. The plugging frame is hermetically plugged in the receiving groove. First buckles are fixedly provided at both ends of the cover plate, and the first buckles are snap-fitted and fixed with corresponding card slots on the filter box.

[0014] Furthermore, the branch pipeline is fixedly connected to the inside of the bottom box through a fixing frame.

[0015] Further, the separation net includes a net body. An insertion opening is opened at the top of the separation box. A plugging groove is fixedly provided inside the separation box below the insertion opening. The net body is plugged into the plugging groove. A sealing cover plate is fixedly provided at the top of the net body. Second buckles are fixedly provided at both ends of the sealing cover plate, and the second buckles are snap-fitted and fixed with corresponding card slots on the separation box. A plurality of ear plates are fixedly provided on the outer side of the bottom of the separation box, and the ear plates are fixedly connected to the top plate through bolts.

[0016] Further, the top end of the ventilation pipe is rotationally connected to a reserved installation hole on the top plate through a bearing. A limiting ring is fixedly provided on one side of the bottom end of the ventilation pipe, and the limiting ring is in limiting abutment with the top of the bottom plate.

[0017] The present invention also claims to protect a monitoring method using the above-mentioned energy storage power station battery safety monitoring device based on particle composition detection, including the following steps:

[0018] S1. Start one of the air pumps, and at the same time, the adjusting rod moves up and down for one-side monitoring and the other-side heat dissipation.

[0019] S2. Switch the operating states of the two air pumps and continue to maintain the up-and-down displacement state of the adjusting rod.

[0020] S3. Keep the forward and reverse motor running during the process of S1 to S2, so that the two ventilation pipes rotate periodically for all-round monitoring.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) Through the cooperation of the monitoring mechanism with the separation box and the filter box mechanism, the present invention not only realizes the all-round safety monitoring and early warning of the battery pack, but also takes into account heat dissipation and conducts heat dissipation treatment at the same time, avoiding safety problems such as fires caused by battery thermal runaway; specifically, when one of the air pumps of the two connecting pipes is running, the other air pump stops working. At this time, the running air pump sucks the ventilation pipe on the same side, so that the air with particles on the corresponding side of the battery pack is sucked into the pipe opening and enters the separation box, where dust and other impurities are intercepted by the separation net; after the interception is completed, the air enters the particle detection box to monitor the particle detection situation; then, the monitored air blows the gas out of the pipe opening through the ventilation pipe on the other side, so as to realize the blowing and heat dissipation treatment of the side of the battery pack that is not monitored; after one side of the battery pack is monitored for a period of time, the operating states of the two air pumps are switched, so as to quickly realize the swapping of monitoring and heat dissipation and achieve the all-round safety monitoring and early warning of the battery pack.

[0023] (2) Through the cooperation of the air control mechanism and the monitoring mechanism, the present invention not only realizes the accurate and safe monitoring and sufficient heat dissipation of battery packs at different levels with a single particle detection box, but also avoids the influence of the gas with particles during the heat dissipation process on the monitoring results of the battery packs on the same side being monitored, thus ensuring the monitoring accuracy. Specifically, by controlling the sliding of the adjusting rod in the sliding hole, the adjusting ring is located at different positions in the ventilation pipe. At this time, through the operation of one of the air pumps, the pipe orifice above the adjusting ring on this side is sucked, and the suction force makes the sealing disc seal the adjusting ring, so that the adjusting ring on this side is in a closed state to monitor the battery pack above the adjusting ring in real time. While the sealing disc on the other side is affected by the gas and gravity and thus does not seal the adjusting ring and does not affect heat dissipation. Therefore, when the adjusting ring continuously changes its position, once the particle detector in the particle detection box gives an alarm, it is possible to quickly judge which layer of the battery pack has problems such as thermal runaway through the real-time position and movement of the adjusting ring, so as to realize the accurate and safe monitoring of battery packs at different levels with a single particle detection box. At the same time, during the heat dissipation process, since the adjusting ring is moving, the gas coming out of the particle detection box will not only be blown out through the other ventilation pipe for heat dissipation, but also be blown out from the pipe orifice below the adjusting ring of the ventilation pipe on the monitored side, so as to achieve sufficient heat dissipation for the corresponding sides of all the battery packs that are not being monitored. And due to the setting of the filter box mechanism, the gas with particles will never interfere with the monitoring situation on the monitored side, realizing both heat dissipation and ensuring the monitoring accuracy.

[0024] (3) Through the structural design of the air control mechanism, the present invention not only realizes the comprehensive monitoring of the battery packs, but also enables the two ventilation pipes to always be in opposite movement directions, thus ensuring that monitoring and heat dissipation do not interfere with each other and further improving the monitoring accuracy. Specifically, when monitoring, through the periodic operation of the forward and reverse motor, the driving gear rotates to drive the two ventilation pipes to rotate periodically, so as to realize that the pipe orifices of the ventilation pipes face different directions of the battery packs for comprehensive monitoring. At the same time, since one of the driven gears is directly meshed with the driving gear and the other driven gear is meshed with the driving gear through the second driven gear, the rotation directions of the two driven gears are opposite, so that the two ventilation pipes are always in opposite movement directions, thus ensuring that monitoring and heat dissipation do not interfere with each other and further improving the monitoring accuracy. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of a battery safety monitoring device for an energy storage power station based on particle composition detection according to the present invention;

[0026] Figure 2 is the dispersed structural schematic diagram of a battery safety monitoring device for an energy storage power station based on particle composition detection according to the present invention;

[0027] Figure 3Schematic cross-sectional structure diagram of a battery safety monitoring device for an energy storage power station based on particle composition detection according to the present invention;

[0028] Figure 4 Schematic partial dispersion structure diagram of a battery safety monitoring device for an energy storage power station based on particle composition detection according to the present invention;

[0029] Figure 5 Schematic partial structure diagram of a battery safety monitoring device for an energy storage power station based on particle composition detection according to the present invention;

[0030] Figure 6 Schematic structure diagram of a filter box mechanism of a battery safety monitoring device for an energy storage power station based on particle composition detection according to the present invention;

[0031] Figure 7 Schematic cross-sectional diagram of the operating state of a battery safety monitoring device for an energy storage power station based on particle composition detection according to the present invention;

[0032] Figure 8 Schematic structure diagram of the operating state of a battery safety monitoring device for an energy storage power station based on particle composition detection according to the present invention;

[0033] Figure 9 Schematic dispersion structure diagram of a separation box of a battery safety monitoring device for an energy storage power station based on particle composition detection according to the present invention;

[0034] Figure 10 Schematic partial dispersion structure diagram of a gas control mechanism of a battery safety monitoring device for an energy storage power station based on particle composition detection according to the present invention;

[0035] Figure 11 Schematic partial dispersion structure diagram of a gas control mechanism of a battery safety monitoring device for an energy storage power station based on particle composition detection according to the present invention.

[0036] Reference numerals are as follows:

[0037] 100 - Battery pack; 200 - Battery rack; 210 - Top plate; 220 - Bottom plate; 300 - Air control mechanism; 310 - Vent pipe; 311 - Pipe orifice; 312 - Driven gear; 313 - Bearing; 314 - Limit ring; 320 - Adjusting rod; 321 - Adjusting ring; 322 - Chute; 323 - Slide bar; 324 - Slide block; 325 - Sealing plate; 330 - Reversible motor; 340 - Driving gear; 350 - Second driven gear; 400 - Bottom box; 410 - Through slot; 500 - Separation box; 501 - Sliding hole; 503 - Socket interface; 504 - Socket slot; 510 - Separation net; 511 - Net body; 512 - Sealing cover plate; 513 - Second buckle; 520 - Ear plate; 600 - Lifting mechanism; 610 - Electric telescopic rod; 620 - Adjusting plate; 700 - Monitoring mechanism; 710 - Particle detection box; 720 - Connecting pipe; 721 - Air pump; 730 - Three-way valve; 800 - Filter box mechanism; 810 - Branch pipe; 811 - Fixed bracket; 820 - Main pipe; 821 - Rotating sealing ring; 830 - Filter box; 831 - Filter block; 832 - Cover plate; 833 - First buckle; 834 - Socket frame. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further elaborates on the present invention in conjunction with embodiments. Of course, the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] Although the steps in the present invention are numbered, they are not used to limit the sequence of the steps. Unless the sequence of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative sequence of the steps can be adjusted. It can be understood that the term "and / or" used herein relates to and encompasses any and all possible combinations of one or more of the associated listed items.

[0040] Embodiment

[0041] As Figures 1 to 11As shown in the figure, a battery safety monitoring device for an energy storage power station based on particle composition detection includes a battery rack 200 located in the energy storage power station. Battery packs 100 are installed on multiple upper and lower layers of the battery rack 200, and the corners of the battery packs 100 correspond to the openings of the battery rack 200. The top and bottom of the battery rack 200 are respectively fixedly connected with a top plate 210 and a bottom plate 220, and an air control mechanism 300 is arranged between the top plate 210 and the bottom plate 220. The air control mechanism 300 includes two ventilation pipes 310 respectively located on both sides of the battery rack 200. The two ends of the side walls of the ventilation pipes 310 are respectively rotatably connected with the top plate 210 and the bottom plate 220. A plurality of pipe orifices 311 are uniformly communicated on the side walls of the ventilation pipes 310, and the pipe orifices 311 are correspondingly aligned with the battery packs 100. The bottom ends of the two ventilation pipes 310 are communicated through a filter box mechanism 800, and a separation box 500 is communicated at the top end of each ventilation pipe 310. A separation net 510 is hermetically inserted on the separation box 500. The two separation boxes 500 are communicated with each other through a monitoring mechanism 700. The monitoring mechanism 700 includes a particle detection box 710. The two sides of the particle detection box 710 are fixedly communicated with the adjacent separation boxes 500 through connecting pipes 720 respectively. An air pump 721 is installed on the connecting pipe 720.

[0042] Through the cooperation of the monitoring mechanism 700 with the separation box 500 and the filter box mechanism 800, the present invention not only realizes the all-round safety monitoring and early warning of the battery packs 100, but also takes into account heat dissipation and conducts heat dissipation treatment at the same time, avoiding safety problems such as fires caused by battery thermal runaway. Specifically, when one of the air pumps 721 of the two connecting pipes 720 operates, the other air pump 721 stops working. At this time, the operating air pump 721 sucks the ventilation pipe 310 on the same side, so that the air with particles on the corresponding side of the battery pack is sucked into the pipe orifice 311 and enters the separation box 500, where dust and other impurities are intercepted by the separation net. After the interception is completed, the air enters the particle detection box 710 to monitor the particle conditions. Then, the air after being monitored is blown out from the pipe orifice 311 through the ventilation pipe 310 on the other side, so as to realize the blowing and heat dissipation treatment of the side of the battery pack 100 that is not monitored. After one side of the battery pack is monitored for a period of time, the operating states of the two air pumps are switched, so as to quickly realize the swapping of monitoring and heat dissipation, and realize the all-round safety monitoring and early warning of the battery packs 100.

[0043] It should be noted that a particle detector is provided inside the particle detection box 710 of the present invention, which can monitor the particles generated during the thermal runaway of the battery, so as to achieve early warning and prevent the occurrence of fires, which is the prior art. And, all the power equipment involved in the present invention is controlled by external power, which will not be described in detail here.

[0044] Further, a through hole is formed in the bottom of the separation box 500, and the top end of the ventilation pipe 310 is located in the through hole; a sliding hole 501 is formed in the top of the separation box 500, and an adjusting rod 320 is slidably connected to the sliding hole 501; the adjusting rod 320 extends into the ventilation pipe 310 and a notch is formed at the bottom end, and sliding grooves 322 are symmetrically and vertically formed around the notch; an adjusting ring 321 is fixedly connected to the bottom end of the adjusting rod 320, the side wall of the adjusting ring 321 is slidably connected to the ventilation pipe 310, and a plurality of ventilation holes are formed in the adjusting ring 321; a sliding rod 323 is arranged on the notch at the bottom end of the adjusting rod 320, an outer side wall of the upper end of the sliding rod 323 is fixedly provided with a slider 324, and the slider 324 is slidably connected to the corresponding sliding groove 322; a closing disc 325 is fixedly provided at the lower end of the sliding rod 323.

[0045] It should be noted that materials such as sealing rubber can be arranged on the sliding hole 501, so as to improve the sealing performance of the adjusting rod 320 during the sliding process. This is a conventional setting and will not be described in detail here.

[0046] Through the cooperation of the air control mechanism 300 and the monitoring mechanism 700, the present invention not only realizes that one particle detection box 710 can accurately and safely monitor different levels of battery packs 100 and fully dissipate heat, but also avoids the monitoring results of the battery pack 100 on the same side being affected by the gas with particles during the heat dissipation process, thereby ensuring the monitoring accuracy; specifically, by controlling the sliding of the adjusting rod 320 and the sliding hole 501, the adjusting ring 321 is in different positions in the ventilation pipe 310; at this time, by operating one of the air pumps 721, the pipe orifice 311 above the adjusting ring 321 on this side is sucked, and the closing disc 325 is closed by suction to close the adjusting ring 321, so that the adjusting ring 321 on this side is in a closed state to monitor the battery pack 100 above the adjusting ring 321 in real time; while the closing disc 325 on the other side is not closed by the gas and gravity, so as not to affect the heat dissipation; therefore, when the adjusting ring 321 continuously changes its position, once the particle detector in the particle detection box 710 issues a warning, then it can quickly judge which layer of the battery pack 100 has problems such as thermal runaway through the real-time position and movement of the adjusting ring 321, so as to realize that one particle detection box 710 can accurately and safely monitor different levels of battery packs 100; at the same time, during the heat dissipation process, since the adjusting ring 321 is movable, the gas coming out of the particle detection box 710 will not only be blown out through the other ventilation pipe 310 for heat dissipation, but also be blown out from the pipe orifice 311 below the adjusting ring 321 of the ventilation pipe 310 on the side to be monitored, so as to realize sufficient heat dissipation for the corresponding sides of all the electric measurement packages 100 that are not monitored; and due to the setting of the filter box mechanism 800, the gas with particles will never interfere with the monitoring situation on the monitoring side, realizing both heat dissipation and ensuring the monitoring accuracy.

[0047] It should be noted that the filter box mechanism 800 can filter dust and particles. The separation box 500 only separates large particle impurities such as dust and does not affect nanoparticles. This can be achieved through specific material settings and will not be described in detail here.

[0048] Furthermore, the top end of the adjusting rod 320 is fixedly connected with a lifting mechanism 600. The lifting mechanism 600 includes an electric telescopic rod 610 fixedly installed on the top plate 210. The top ends of the two adjusting rods 320 are jointly fixedly connected with an adjusting plate 620, and the telescopic end of the electric telescopic rod 610 is fixedly connected with the adjusting plate 620. The lifting mechanism 600 can automatically adjust the lifting of the adjusting rod 320.

[0049] Further, the connecting pipe 720 is a three-way pipe. The two ends of the connecting pipe 720 are connected to the corresponding separation boxes 500, and an air pump 721 is installed at one of the two ends. The remaining end of the connecting pipe 720 is connected to the particle detection box 710. A three-way valve 730 is installed in the middle of the connecting pipe 720. Through the cooperation of the three-way valve 730 and the air pump 721, independent passage in different air inlet directions is realized, avoiding the influence of the air pump 721 and the pipeline on the particle composition and further improving the detection accuracy.

[0050] It should be noted that the operating states of the three-way valve 730 and the air pump 721 can be controlled by an external PLC system, which is a conventional technology and will not be described in detail here.

[0051] Further, a bottom box 400 is fixedly provided at the bottom of the bottom plate 220. A driven gear 312 is fixedly provided on the side wall of the bottom end of the ventilation pipe 310. A forward and reverse motor 330 is fixedly installed in the bottom box 400. The output end of the forward and reverse motor 330 is fixedly connected with a driving gear 340. One of the driven gears 312 is directly meshed with the driving gear 340, and the other driven gear 312 is meshed with a second driven gear 350. The second driven gear 350 is meshed with the driving gear 340. The second driven gear 350 is rotationally connected to the bottom of the bottom plate 220 through a gear shaft.

[0052] Through the structural design of the air control mechanism 300, the present invention not only realizes the omnidirectional monitoring of the battery pack 100, but also enables the two ventilation pipes 310 to always move in opposite directions, thus ensuring that monitoring and heat dissipation do not interfere with each other and further improving the monitoring accuracy. Specifically, when monitoring, through the periodic operation of the forward and reverse motor 330, the driving gear 340 rotates to drive the two ventilation pipes 310 to rotate periodically, so as to realize the omnidirectional monitoring of the pipe orifices 311 of the ventilation pipes 310 facing different orientations of the battery pack 100. At the same time, since one of the driven gears 312 is directly meshed with the driving gear 340, and the other driven gear 312 is meshed with the driving gear 340 through the second driven gear 350, the rotation directions of the two driven gears 312 are opposite, so that the two ventilation pipes 310 always move in opposite directions, thus ensuring that monitoring and heat dissipation do not interfere with each other and further improving the monitoring accuracy.

[0053] Furthermore, the filter box mechanism 800 includes a main pipeline 820. The bottom ends of the ventilation pipes 310 are each rotatably connected to a main pipeline 820 through a rotating seal ring 821. The other end of the main pipeline 820 is fixedly communicated with the side wall of a branch pipeline 810. The two branch pipelines 810 are fixedly communicated through a filter box 830. A filter block 831 is arranged in the filter box 830.

[0054] Furthermore, a through groove 410 is formed on one side of the bottom box 400. A receiving groove is formed on one side of the filter box 830 and the receiving groove passes through the through groove 410 and extends outward. A cover plate 832 is arranged on the receiving groove. A plug-in frame 834 is fixedly arranged on the side of the cover plate 832 close to the receiving groove. The plug-in frame 834 is hermetically plugged in the receiving groove. First buckles 833 are fixedly arranged at both ends of the cover plate 832. The first buckles 833 are snap-fitted and fixed with corresponding card slots on the filter box 830. The structural design of plugging and the first buckles 833 facilitates quick disassembly and is beneficial to replacing the filter block 831.

[0055] Furthermore, the branch pipeline 810 is fixedly connected to the inside of the bottom box 400 through a fixing frame 811.

[0056] Further, the separation net 510 includes a net body 511. An insertion interface 503 is formed at the top of the separation box 500. An insertion slot 504 is fixedly arranged inside the separation box 500 below the insertion interface 503, and the net body 511 is inserted into the insertion slot 504. A sealing cover plate 512 is fixedly arranged at the top of the net body 511. Second buckles 513 are fixedly arranged at both ends of the sealing cover plate 512, and the second buckles 513 are snap-fitted and fixed with corresponding card slots on the separation box 500. A plurality of ear plates 520 are fixedly arranged on the outer side of the bottom of the separation box 500, and the ear plates 520 are fixedly connected to the top plate 210 through bolts. The structural design of insertion and the second buckles 513 facilitates quick disassembly and is beneficial to replacing the net body 511.

[0057] Further, the top end of the ventilation pipe 310 is rotatably connected to a reserved installation hole on the top plate 210 through a bearing 313. A limiting ring 314 is fixedly arranged on one side of the bottom end of the ventilation pipe 310, and the limiting ring 314 is in limiting abutment with the top of the bottom plate 220. The ventilation pipe 310 can be abutted against the bottom plate 220 through the limiting ring 314, improving the connection stability.

[0058] The present invention also claims to protect a monitoring method using the above-mentioned energy storage power station battery safety monitoring device based on particle composition detection, including the following steps:

[0059] S1. Start one of the air pumps 721, and at the same time, the adjusting rod 320 moves up and down for one-side monitoring and the other-side heat dissipation;

[0060] S2. Switch the operating states of the two air pumps 721, and continue to maintain the up-and-down displacement state of the adjusting rod 320;

[0061] S3. Keep the forward and reverse motor 330 running during the process of S1 to S2, so that the two ventilation pipes 310 rotate periodically for all-round monitoring.

[0062] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several improvements and transformations can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An energy storage power station battery safety monitoring device based on particle composition detection, including a battery rack (200) located in the energy storage power station, characterized in that, Battery packs (100) are installed in multiple upper and lower layers of the battery rack (200), and the corners of the battery packs (100) correspond to the openings of the battery rack (200); a top plate (210) and a bottom plate (220) are respectively fixedly connected to the top and bottom of the battery rack (200), and an air control mechanism (300) is arranged between the top plate (210) and the bottom plate (220); the air control mechanism (300) includes two ventilation pipes (310) respectively located on both sides of the battery rack (200), and the side walls at both ends of the ventilation pipes (310) are respectively rotatably connected to the top plate (210) and the bottom plate (220); a plurality of pipe orifices (311) are uniformly communicated and arranged on the side wall of the ventilation pipe (310), and the pipe orifices (311) are correspondingly aligned with the battery packs (100); the bottom ends of the two ventilation pipes (310) are communicated through a filter box mechanism (800), and a separation box (500) is communicated with the top end of each ventilation pipe (310), and a separation net (510) is hermetically inserted on the separation box (500); the two separation boxes (500) are communicated with each other through a monitoring mechanism (700), and the monitoring mechanism (700) includes a particle detection box (710), and the two sides of the particle detection box (710) are respectively fixedly communicated with the adjacent separation box (500) through a communication pipe (720); an air pump (721) is installed on the communication pipe (720).

2. The energy storage power station battery safety monitoring device based on particle composition detection according to claim 1, wherein A through hole is formed in the bottom of the separation box (500), and the top end of the ventilation pipe (310) is located in the through hole; a sliding hole (501) is formed in the top of the separation box (500), and an adjusting rod (320) is slidably connected to the sliding hole (501); the adjusting rod (320) extends into the ventilation pipe (310) and a notch is formed at the bottom end, and sliding grooves (322) are symmetrically and vertically formed around the notch; an adjusting ring (321) is fixedly connected to the bottom end of the adjusting rod (320), the side wall of the adjusting ring (321) is slidably connected to the ventilation pipe (310), and a plurality of ventilation holes are uniformly formed in the adjusting ring (321); a sliding rod (323) is arranged in the notch at the bottom end of the adjusting rod (320), a slider (324) is fixedly arranged on the outer side wall of the upper end of the sliding rod (323), and the slider (324) is slidably connected to the corresponding sliding groove (322); a closing disc (325) is fixedly arranged at the lower end of the sliding rod (323).

3. The energy storage power station battery safety monitoring device based on particle composition detection according to claim 2, characterized in that, An elevating mechanism (600) is fixedly connected to the top end of the adjusting rod (320), and the elevating mechanism (600) includes an electric telescopic rod (610) fixedly installed on the top plate (210); the top ends of the two adjusting rods (320) are jointly fixedly connected to an adjusting plate (620), and the telescopic end of the electric telescopic rod (610) is fixedly connected to the adjusting plate (620).

4. The energy storage power station battery safety monitoring device based on particle composition detection according to claim 1, characterized in that, The communication pipe (720) is a three-way pipe, the two ends of the communication pipe (720) are communicated with the corresponding separation box (500) and an air pump (721) is installed at one of the two ends, the remaining end of the communication pipe (720) is communicated with the particle detection box (710); a three-way valve (730) is installed in the middle of the communication pipe (720).

5. The energy storage power station battery safety monitoring device based on particle composition detection according to claim 1, characterized in that, A bottom box (400) is fixedly provided at the bottom of the bottom plate (220). A driven gear (312) is fixedly provided on the side wall of the bottom end of the ventilation pipe (310). A forward and reverse motor (330) is fixedly installed in the bottom box (400). The output end of the forward and reverse motor (330) is fixedly connected to a driving gear (340). One of the driven gears (312) is directly meshed with the driving gear (340), and the other driven gear (312) is meshed with a second driven gear (350). The second driven gear (350) is meshed with the driving gear (340). The second driven gear (350) is rotatably connected to the bottom of the bottom plate (220) through a gear shaft.

6. The energy storage power station battery safety monitoring device based on particle composition detection according to claim 5, characterized in that The filter box mechanism (800) includes a main pipe (820). The bottom ends of the ventilation pipes (310) are each rotatably connected to a main pipe (820) through a rotating sealing ring (821). The other end of the main pipe (820) is fixedly communicated with the side wall of a branch pipe (810). The two branch pipes (810) are fixedly communicated through a filter box (830). A filter block (831) is arranged in the filter box (830).

7. The energy storage power station battery safety monitoring device based on particle composition detection according to claim 6, characterized in that, A through groove (410) is formed on one side of the bottom box (400). A receiving groove is formed on one side of the filter box (830) and the receiving groove passes through the through groove (410) and is arranged outward. A cover plate (832) is arranged on the receiving groove. A plug-in frame (834) is fixedly provided on the side of the cover plate (832) close to the receiving groove. The plug-in frame (834) is hermetically plugged in the receiving groove. First buckles (833) are fixedly provided at both ends of the cover plate (832). The first buckles (833) are snap-fitted and fixed with corresponding card slots on the filter box (830). The branch pipe (810) is fixedly connected to the inside of the bottom box (400) through a fixing frame (811).

8. The energy storage power station battery safety monitoring device based on particle composition detection according to claim 1, characterized in that, The separation net (510) includes a net body (511). An insertion port (503) is formed at the top of the separation box (500). A plug-in slot (504) is fixedly provided inside the separation box (500) below the insertion port (503). The net body (511) is inserted into the plug-in slot (504). A sealing cover plate (512) is fixedly provided at the top of the net body (511). Second buckles (513) are fixedly provided at both ends of the sealing cover plate (512). The second buckles (513) are snap-fitted and fixed with corresponding card slots on the separation box (500). A plurality of ear plates (520) are fixedly provided on the outer side of the bottom of the separation box (500). The ear plates (520) are fixedly connected to the top plate (210) through bolts.

9. The energy storage power station battery safety monitoring device based on particle composition detection according to claim 1, characterized in that, The top end of the ventilation pipe (310) is rotatably connected to a reserved installation hole on the top plate (210) through a bearing (313). A limiting ring (314) is fixedly provided on one side of the bottom end of the ventilation pipe (310). The limiting ring (314) is in limiting abutment with the top of the bottom plate (220).

10. A monitoring method using the energy storage power station battery safety monitoring device based on particle composition detection according to any one of claims 1 to 9, characterized in that, Including the following steps: S1. Start one of the air pumps (721), and at the same time, the adjusting rod (320) moves up and down for one-side monitoring and the other-side heat dissipation. S2. Switch the operating states of the two air pumps (721), and continue to maintain the up-and-down displacement state of the adjusting rod (320); S3. During the process from S1 to S2, keep the forward and reverse motor (330) running, so that the two ventilation pipes (310) rotate periodically for all-round monitoring.

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