Device and method for researching explosion prevention and control measures of partition isolation type underground energy storage system

Abstract

The invention relates to the technical field of explosion prevention and control of energy storage systems, in particular to a partition isolation type underground energy storage system explosion prevention and control measure research device and method.The partition isolation type underground energy storage system explosion prevention and control measure research device comprises a prevention and control laboratory, a plurality of isolation walls are arranged in the prevention and control laboratory, and the interior of the prevention and control laboratory is divided into a plurality of rooms through the isolation walls; two battery cabinets are arranged in the room, a door frame is arranged at an entrance of the room, and an explosion venting door is mounted at the door frame; according to the partition isolation type underground energy storage system explosion prevention and control measure research device and method, the multiple partition pipes are arranged in the explosion venting space and located on the outer sides of the multiple rooms, inert gas is supplied to the partition pipes through the gas supply mechanism, and therefore after one-time explosion occurs, the explosion venting door is opened, and the explosion venting door is opened; and meanwhile, a large amount of inert gas is rapidly introduced into the multiple separation pipes, so that even if combustible gas enters the explosion venting space after explosion occurs, secondary explosion cannot occur due to lack of oxygen.

Description

Technical Field

[0001] The present invention relates to the technical field of explosion prevention and control of energy storage systems, and specifically to a device and method for studying explosion prevention and control measures of a zoned isolated underground energy storage system. Background Art

[0002] The zoning protection adopts a multi-compartment energy storage design. According to the design of the Nanjing Line 3 energy storage system, the energy storage system is designed for zoning protection. The battery families used in a single station are in 6 areas. Considering the space redundancy, each area is 6 square meters (3 meters * 2 meters), 0.33MWh, and the energy storage structure height is 2.6 meters. Two battery cabinets are arranged in each room, with dimensions (length, width and height) of 3 meters * 0.8 meters * 2.5 meters. An explosion vent is set, that is, an explosion vent door is installed at the explosion vent, and an explosion vent space is set around it.

[0003] At present, in order to study the explosion prevention and control measures of the zoned and isolated underground energy storage system, an explosion occurred in the protection area of ​​the original research device, and the explosion-proof door in the area opened, which subsequently caused the pressure in the explosion-proof space to increase. Since multiple protection areas share one explosion-proof space, the pressure in the explosion-proof space will also act on the explosion-proof structures of other protection areas, resulting in uncontrollable losses. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for studying explosion prevention and control measures for a partitioned and isolated underground energy storage system, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a research device for explosion prevention and control measures of a partitioned and isolated underground energy storage system, comprising a prevention and control laboratory, wherein a plurality of isolation walls are arranged inside the prevention and control laboratory, wherein the interior of the prevention and control laboratory is divided into a plurality of rooms by the plurality of isolation walls, and two battery cabinets are arranged inside the rooms, a door frame is arranged at the entrance of the room, and an explosion-proof door is installed at the door frame, an explosion-proof space is arranged outside the plurality of explosion-proof doors, a separation pipe is arranged at one end of the top of the door frame and located at the explosion-proof space, the separation pipe is located at one side of the opening of the explosion-proof door, and a plurality of nozzles are connected to the bottom of the separation pipe;

[0006] The control laboratory is provided with a gas supply mechanism, which is used to supply inert gas to a plurality of separation tubes at the explosion relief space, and to eject the inert gas through the separation tubes, so that the explosion relief space is divided into independent explosion relief areas;

[0007] The end of the separation pipe close to the isolation wall is connected to an air guide shell, and the air guide shell is provided with a plurality of reinforcing mechanisms, and a reinforcing plate is provided on one side of the plurality of reinforcing mechanisms, and a connecting hole is provided on the reinforcing plate corresponding to the reinforcing mechanism;

[0008] The reinforcing plate is fixedly mounted on the outside of the explosion-proof door and is away from one end of the hinge on the explosion-proof door.

[0009] The gas supply mechanism includes a connecting pipe, a distribution pipe, an extension pipe, an air pump and an air storage box. The connecting pipe is provided in plurality, one end of the connecting pipe is connected to the separation pipe, and the other end of the connecting pipe is connected to the distribution pipe. The distribution pipe is fixedly installed in the prevention and control laboratory and is located at the top of the explosion-proof space.

[0010] One end of the extension pipe is connected to the distribution pipe, and the other end of the extension pipe is connected to the air pump. The air pump is located outside the control laboratory, and the air pump input end is connected to the air storage box.

[0011] Wherein, the inert gas forms a wind wall when it is ejected through the separation pipe.

[0012] Wherein, the reinforcing mechanism comprises a support tube, a rotating member, a support sleeve and a reinforcing member, and the support tube is provided in plurality, and the plurality of support tubes are distributed on one side of the air guide shell close to the opening of the explosion relief door;

[0013] A through hole is provided at the position of the air guide shell corresponding to the support tube, the support sleeve is connected to the support tube, the reinforcement member is installed inside the support sleeve, a moving opening is provided at the end of the support sleeve away from the support tube, the rotating member passes through the opening, and the rotating member is used to drive the reinforcement member, so that the strength of the explosion-proof doors of other rooms is strengthened through the reinforcement mechanism when an explosion occurs.

[0014] Wherein, a plurality of air holes are arranged at one end of the support sleeve close to the support tube, so that the inert gas can enter into the support sleeve through the support tube.

[0015] The rotating member includes a rotating block, a rotating blade, a rotating shaft, a rotating rod and an arc-shaped guide plate. The rotating block is located inside the support tube. A plurality of rotating blades are provided. The plurality of rotating blades are evenly distributed outside the rotating block. One end of the rotating shaft is fixedly connected to the rotating block, and the other end of the rotating shaft passes through the support sleeve and is fixedly connected to the rotating rod. The rotating shaft is rotatably connected to the support sleeve.

[0016] There are two arc-shaped guide plates, which are symmetrically distributed on the outside of the rotating rod with respect to the X-axis line of the rotating rod. The reinforcing member is driven by the rotating member, and the inert gas is accelerated to flow along the explosion-proof door.

[0017] The reinforcing member includes a reinforcing block, a connecting spring, a locking member, a first electromagnet and a second electromagnet. A moving hole is provided inside the reinforcing block, and the reinforcing block is sleeved on the rotating rod and the outside of the two arc-shaped guide plates through the moving hole. The connecting spring is fixedly installed inside the supporting sleeve, and the connecting spring is sleeved on the rotating shaft and the outside of the rotating rod.

[0018] The reinforcing block is composed of a connecting end and a supporting end, the connecting end is fixedly connected to the connecting spring, and two air guide ports are provided at the supporting end;

[0019] Two mounting holes are provided at the connection end, and the locking piece is located inside the mounting hole. Two of the first electromagnet and the second electromagnet are provided, and grooves are provided at the positions of the support sleeve corresponding to the first electromagnet and the second electromagnet. Through the reinforcement piece provided, the explosion-proof doors of the remaining rooms can be further locked.

[0020] The locking member includes a locking block with a hollow interior, a support frame, a locking spring and an iron block. The locking block is slidably connected to the mounting hole. A guide groove is provided at a position of the locking block corresponding to the support frame. Both ends of the support frame slide through the guide groove and are fixedly connected to the inner wall of the mounting hole.

[0021] One end of the locking spring is fixedly connected to the support frame, and the other end of the locking spring is fixedly connected to the internal cavity of the locking block. The iron block is fixedly installed on one end of the locking block close to the support sleeve, and a locking piece is provided to achieve mutual locking between the reinforcement block and the support sleeve.

[0022] Among them, a positioning rod is provided on one side of the rotating block, and one end of the positioning rod passes through the air guide shell and is fixedly connected to a handle. The positioning rod is rotatably connected to the air guide shell, and the positioning rod and the handle are provided to facilitate manual rotation of the rotating block.

[0023] The research method of the explosion prevention and control measures research device of the partitioned isolation underground energy storage system includes the following steps:

[0024] Step 1: The amount of thermal runaway combustible gas in one of the rooms may be much greater than the concentration required for explosion. After an explosion occurs, the explosion vent door in the room opens, and the combustible mixed gas enters the explosion vent space;

[0025] Step 2: When the explosion-proof door is opened, the air pump starts to run, and the inert gas is passed from the extension pipe to the distribution pipe, and then to the separation pipes through the distribution pipes. Multiple separation pipes quickly spray inert gas at both ends of the explosion-proof door inside the explosion-proof space to form an inert gas wind wall, so that an independent separation area is formed inside the explosion-proof space to prevent the flammable mixed gas from entering other rooms;

[0026] Step three: When the inert gas is introduced into the separator tube, the inert gas enters into the gas guide shell through the separator tube. The inert gas passes through the gas guide shell and synchronously drives multiple rotating blades to rotate, so that the rotating block drives the rotating rod to rotate. When the rotating rod rotates, the two arc-shaped guide plates rotate, so that one end of the reinforcement block extends into the connecting hole of the reinforcement plate. At this time, the explosion-proof doors of the remaining rooms are further locked to strengthen the tightness of the explosion-proof doors of the remaining rooms to avoid being affected by the explosion.

[0027] The present invention has at least the following beneficial effects:

[0028] 1. When the present invention is used, multiple partition tubes are arranged inside the explosion relief space, and the multiple partition tubes are located outside multiple rooms, and inert gas is supplied to the partition tubes through a gas supply mechanism. After an explosion occurs, as the explosion relief door is opened, inert gas is quickly and massively introduced into the multiple partition tubes. Therefore, even if combustible gas enters the explosion relief space after an explosion, a secondary explosion will not occur due to lack of oxygen. At the same time, in the present invention, multiple inert gas wind walls can be formed while multiple partition tubes are introducing inert gas into the explosion relief space, so as to realize the effect of dividing the explosion relief space into regions, thereby preventing the combustible mixed gas from entering other spaces, and further ensuring the effective implementation of explosion prevention and control measures of the partitioned isolation underground energy storage system.

[0029] 2. When the present invention is in use, while the inert gas is introduced into the separation pipe, the inert gas enters the air duct, thereby passing the inert gas into the explosion vent through the reinforcing mechanism at the air duct, and at the same time, the explosion vent doors in the remaining rooms are re-locked, thereby ensuring the strength of the explosion vent doors in the remaining rooms and preventing the remaining areas from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the prevention and control laboratory of the present invention;

[0031] Figure 2 This is a schematic diagram of the side view structure of the prevention and control laboratory of the present invention;

[0032] Figure 3 This is a schematic diagram of the top view of the control laboratory of the present invention;

[0033] Figure 4 This is a schematic diagram of the front view structure of the explosion venting door of the present invention;

[0034] Figure 5 This is a schematic diagram of the isolation wall structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the separator tube of the present invention;

[0036] Figure 7This is a schematic diagram of the structure of the air guide housing of the present invention;

[0037] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of the middle A area;

[0038] Fig. 9 It is a schematic diagram of the cross-sectional structure of the support sleeve of the present invention;

[0039] Fig.10 This is a schematic diagram of the reinforcing block structure of the present invention;

[0040] Fig.11 This is a schematic diagram of the internal structure of the reinforcement block of the present invention;

[0041] Fig.12 This is a schematic diagram of the structure of the rotating block of the present invention;

[0042] Fig.13 Arrangements for examples (a)01, (b)02, (c)03, (d)04, and (e)05 of the present invention;

[0043] Fig.14 The three-dimensional temperature distribution cloud diagram of the single-sided discharge at different times of Example 02 and Example 03 of the present invention;

[0044] Fig.15 These are the curves of probe overpressure variation over time for examples (a) 01, (b) 02, (c) 03, (d) 04 and (e) 05 of the present invention.

[0045] In the figure: 1. Control laboratory; 11. Isolation wall; 12. Room; 13. Battery cabinet; 14. Door frame; 15. Explosion vent door; 2. Explosion vent space; 3. Separation pipe; 31. Nozzle; 4. Air supply mechanism; 41. Connecting pipe; 42. Distribution pipe; 43. Extension pipe; 44. Air pump; 45. Air storage box; 5. Air guide shell; 6. Strengthening mechanism; 61. Support pipe; 62. Rotating part; 621. Rotating block; 6211. Positioning rod; 6212. Handle; 622. Rotating blade; 623. Rotating Rotating shaft; 624, rotating rod; 625, arc-shaped guide plate; 63, supporting sleeve; 631, moving port; 632, air hole; 64, reinforcing member; 641, reinforcing block; 6411, connecting end; 6412, supporting end; 6413, air guide port; 642, connecting spring; 643, first electromagnet; 644, second electromagnet; 7, reinforcing plate; 71, connecting hole; 8, locking member; 81, locking block; 811, guide groove; 82, supporting frame; 83, locking spring; 84, iron block. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The research device of explosion prevention and control measures of partitioned and isolated underground energy storage system, this study carried out the calculation of five examples of thermal runaway mixed gas without discharge, single-side discharge (3m), central discharge (3m), single-side discharge (6m), and central discharge (6m) in multi-chamber energy storage design (Table 1), and each example arranged four pressure measuring points P1, P2, P3 and P4 at the center of the wall. The composition of the thermal runaway mixed gas is consistent with that in the single-chamber example;

[0048] Table 1 Example number and grid information

[0049] serial number illustrate Number of grids 01 No discharge 551842 02 One-side discharge (3m) 748201 03 Central discharge (3m) 760743 04 One-side discharge (6m) 682948 05 Central discharge (6m) 685386

[0050] The simulation results show that 60.1ms after ignition, the overpressure of the explosion relief structure reaches 10kPa and begins to release gas. Taking Example 02 (single-sided release 3m) and Example 03 (center release 3m) as examples, the three-dimensional temperature distribution cloud maps at different times are obtained by numerical simulation. By comparing the 200ms temperature cloud map, it can be seen that in the single-sided release example, due to the wall constraint near the release port, the flame spread is more evenly distributed in space. In the center release example, there is no wall constraint near the release port, and the flame forms a protruding fireball structure downstream due to the high-speed airflow. When the time reaches 400ms, Fig.14 In (b), the Rayleigh-Taylor instability vortex structure characteristics generated by the high-speed hot air flowing toward the low-speed cold air can be observed. Since the discharge volume of the compartment discharge structure is much higher than the volume of a single battery compartment, the high-temperature combustion products gradually mix and cool down with the cold air in the discharge space as time goes by, and the temperature in the discharge space observed at 1000ms drops significantly;

[0051] The curves of overpressure variation with time at each measuring point in different examples obtained by numerical simulation are shown in the figure below: Fig.15 As shown in the figure, it can be seen that the peak overpressure of the case without discharge is close to the calculated value of chemical equilibrium. In the discharge case, the peak overpressure gradually decreases with the increase of the discharge space volume. Cases 02 and 03, and cases 04 and 05 reach nearly the same peak overpressure due to their similar discharge space volumes. After the discharge begins, the overpressure has an oscillating characteristic due to the instantaneous increase in volume. Fig.15 (b) and Fig.15(c) It can be seen that when the discharge volume is the same, the oscillation amplitude of the overpressure in the central discharge is significantly increased compared with that in the single-side discharge. Fig.15 (d) and Fig.15 This trend was not observed in the comparison with (e). It is speculated that the large overpressure oscillation in Case 03 was caused by the collision of the Rayleigh-Taylor instability vortex generated by the hot air flow with the wall opposite the discharge port, while in Case 05, due to the long discharge distance, the vortex strength was greatly weakened before colliding with the wall, so no significant overpressure oscillation was observed;

[0052] According to the configuration mode of lithium battery combination, a single energy storage space can be divided into several partitions as protection partitions. Each partition is isolated by explosion-proof and fire-proof structures. Each protection partition should have fire-fighting and smoke exhaust measures. In terms of explosion-proof and explosion-proof, each protection partition is equipped with an explosion-relief structure. In order to maximize the use of the explosion-relief space 2, multiple protection partitions share one explosion-relief space 2.

[0053] See also Figures 1 to 5 , including a control laboratory 1, a plurality of isolation walls 11 are arranged inside the control laboratory 1, the control laboratory 1 is divided into a plurality of rooms 12 by the plurality of isolation walls 11, and two battery cabinets 13 are arranged inside the room 12, a door frame 14 is arranged at the entrance of the room 12, and an explosion-proof door 15 is installed at the door frame 14, and an explosion-proof space 2 is arranged outside the plurality of explosion-proof doors 15;

[0054] The one-way turning explosion relief structure mainly adopts a one-way rotating explosion relief door 15, which can only be rotated outwards, but not inwards. The main reason is that once a deflagration accident occurs in a certain protection area, the explosion relief door 15 in the area is opened, which then causes the pressure in the explosion relief space 2 to increase. Since multiple protection areas share one explosion relief space 2, the pressure in the explosion relief space 2 will also act on the explosion relief structure of other protection areas. Therefore, the explosion relief door 15 of the explosion relief structure is a one-way rotating design, and on the other hand, it must be able to withstand a certain amount of deflagration pressure;

[0055] A separation pipe 3 is provided at one end of the top of the door frame 14 and located at the explosion relief space 2. The separation pipe 3 is located on one side of the opening of the explosion relief door 15. A plurality of nozzles 31 are connected to the bottom of the separation pipe 3.

[0056] A gas supply mechanism 4 is installed at the control laboratory 1, and the gas supply mechanism 4 is used to supply inert gas to multiple partition tubes 3 at the explosion-proof space 2, and spray the inert gas through the partition tubes 3, so that the explosion-proof space 2 is divided into independent explosion-proof areas, and in this embodiment, the inert gas is preferably nitrogen;

[0057] See also Figure 2The gas supply mechanism 4 includes a connecting pipe 41, a distribution pipe 42, an extension pipe 43, an air pump 44 and an air storage box 45. The connecting pipe 41 is provided with a plurality of connecting pipes, one end of the connecting pipe 41 is connected to the partition pipe 3, and the other end of the connecting pipe 41 is connected to the distribution pipe 42. The distribution pipe 42 is fixedly installed in the prevention and control laboratory 1 and is located at the top of the explosion-proofing space 2;

[0058] One end of the extension pipe 43 is connected to the distribution pipe 42, and the other end of the extension pipe 43 is connected to the air pump 44. In this embodiment, the top of the extension pipe 43 is U-shaped, and the two ends of the top of the extension pipe 43 are connected to the two branch pipes. At the same time, a solenoid valve is also provided on the extension pipe 43 to control the opening and closing of one end. In this embodiment, two explosion-proof spaces 2 are provided. When an explosion occurs in one of the rooms 12 in the two explosion-proof spaces 2, the extension pipe 43 corresponding to the explosion-proof space 2 supplies the inert gas to the distribution pipe 42;

[0059] The air pump 44 is located outside the control laboratory 1, and the input end of the air pump 44 is connected to the air storage box 45. When the inert gas is ejected through the partition pipe 3, a wind wall is formed;

[0060] Specific implementation process: When an explosion occurs in one of the rooms 12, the explosion-proof door opens. At this time, the air pump 44 runs, and the inert gas is introduced into the distribution pipe 42 through the extension pipe 43, and then introduced into the separation pipe 3 through the multiple connecting pipes 41 at the distribution pipe 42. The separation pipe 3 then sprays a large amount of inert gas vertically downward through the multiple nozzles 31 thereon. After the explosion, the combustible gas enters the explosion-proof space 2. Due to the lack of oxygen, a secondary explosion will not occur. Since the multiple separation pipes 3 are respectively located on the outside of the door frame 14 of the room 12, a wind wall is formed while the separation pipe 3 sprays a large amount of inert gas, thereby realizing the division of the explosion-proof space 2 into multiple areas, thereby preventing the combustible mixed gas from entering other spaces, further ensuring the effective implementation of the explosion prevention and control measures of the partitioned and isolated underground energy storage system.

[0061] See also Figures 5 to 12 The end of the partition pipe 3 close to the isolation wall 11 is connected to the air guide shell 5, and a plurality of reinforcing mechanisms 6 are provided at the air guide shell 5. A reinforcing plate 7 is provided on one side of the plurality of reinforcing mechanisms 6, and a connecting hole 71 is provided at the reinforcing plate 7 corresponding to the reinforcing mechanism 6;

[0062] The reinforcing plate 7 is fixedly mounted on the outer side of the explosion venting door 15 and away from one end of the hinge on the explosion venting door 15. The reinforcing mechanism 6 includes a supporting tube 61, a rotating member 62, a supporting sleeve 63 and a reinforcing member 64. A plurality of supporting tubes 61 are provided, and the plurality of supporting tubes 61 are distributed on one side of the air guide housing 5 close to the opening of the explosion venting door 15.

[0063] A through hole is provided at the position of the air guide shell 5 corresponding to the support tube 61, the support sleeve 63 is connected to the support tube 61, a plurality of air holes 632 are provided at one end of the support sleeve 63 close to the support tube 61, a reinforcement member 64 is installed inside the support sleeve 63, a moving opening 631 is provided at one end of the support sleeve 63 away from the support tube 61, a rotating member 62 passes through the opening, and the rotating member 62 is used to drive the reinforcement member 64.

[0064] The rotating member 62 includes a rotating block 621, a rotating blade 622, a rotating shaft 623, a rotating rod 624 and an arc-shaped guide plate 625. The rotating block 621 is located inside the support tube 61. A plurality of rotating blades 622 are provided. The plurality of rotating blades 622 are evenly distributed outside the rotating block 621. One end of the rotating shaft 623 is fixedly connected to the rotating block 621, and the other end of the rotating shaft 623 passes through the support sleeve 63 and is fixedly connected to the rotating rod 624. The rotating shaft 623 is rotatably connected to the support sleeve 63.

[0065] There are two arc-shaped guide plates 625 , and the two arc-shaped guide plates 625 are symmetrically distributed on the outer side of the rotating rod 624 with respect to the X-axis line of the rotating rod 624 .

[0066] The reinforcing member 64 includes a reinforcing block 641, a connecting spring 642, a locking member 8, a first electromagnet 643 and a second electromagnet 644. A moving hole is provided inside the reinforcing block 641, and the reinforcing block 641 is sleeved on the rotating rod 624 and the outer sides of the two arc-shaped guide plates 625 through the moving hole. The connecting spring 642 is fixedly installed inside the supporting sleeve 63, and the connecting spring 642 is sleeved on the outer sides of the rotating shaft 623 and the rotating rod 624.

[0067] The reinforcing block 641 is composed of a connecting end 6411 and a supporting end 6412. The connecting end 6411 is fixedly connected to the connecting spring 642, and two air guide ports 6413 are provided at the supporting end 6412.

[0068] Two mounting holes are provided at the connection end 6411 , the locking member 8 is located inside the mounting holes, two first electromagnets 643 and two second electromagnets 644 are provided, and the support sleeve 63 is provided with grooves corresponding to the positions of the first electromagnets 643 and the second electromagnets 644 .

[0069] The locking member 8 includes a locking block 81 with a hollow interior, a support frame 82, a locking spring 83 and an iron block 84. The locking block 81 is slidably connected to the mounting hole. A guide groove 811 is provided at a position of the locking block 81 corresponding to the support frame 82. Both ends of the support frame 82 slide through the guide groove 811 and are fixedly connected to the inner wall of the mounting hole.

[0070] One end of the locking spring 83 is fixedly connected to the support frame 82 , and the other end of the locking spring 83 is fixedly connected to the inner cavity of the locking block 81 . The iron block 84 is fixedly mounted on one end of the locking block 81 close to the support sleeve 63 .

[0071] In this embodiment, when no explosion occurs, due to the elastic force of the connecting spring 642, the supporting end 6412 of the reinforcing block 641 moves to the inside of the supporting sleeve 63, and at the same time, the first electromagnet 643 is in the on state, and the second electromagnet 644 is in the off state, and at the same time, under the connection effect of the iron block 84 on the locking block 81, one end of the locking block 81 moves to the groove, and the locking block 81 and the first electromagnet 643 are mutually attracted through the iron block 84, while the other end of the locking block 81 is located at the moving hole and does not contact the arc-shaped guide plate 625 and the rotating rod 624;

[0072] When an explosion occurs, the explosion relief door 15 corresponding to the explosion area opens, and at the same time, the inert gas is introduced into the separation tube 3. While being sprayed out through the nozzle on the separation tube 3, a large amount of inert gas still enters the gas guide shell 5. When the gas enters the gas guide shell 5, the rotating blades 622 are driven at the same time, and the multiple rotating blades 622 rotate, thereby driving the rotating shaft 623 and the rotating rod 624 to rotate. At the same time, the first electromagnet 643 is powered off, and the second electromagnet 644 is powered on. At this time, under the action of the reverse elastic force of the locking spring 83, the locking block 81 makes one end of the locking block 81 move away from the inner wall of the supporting sleeve 63, that is, extends into the mounting hole, and at the same time, the other end of the locking block 81 passes through the mounting hole and moves to the outside of the rotating rod 624, and one end of the locking block 81 is connected to the rotating rod 62 4, and one of the arc-shaped guide plates 625 contacts the locking block 81. At the same time, as the rotation of the rotating rod 624 drives the arc-shaped guide plate 625 to rotate, the arc-shaped guide plate 625 guides the locking block 81. At the same time, under the directional elastic force of the connecting spring 642, the reinforcing block 641 extends the support end 6412 of the reinforcing plate 7 along the moving opening 631 of the supporting sleeve 63, and finally moves to the connecting hole 71 of the reinforcing plate 7. At the same time, the two iron blocks 84 on the reinforcing block 641 move to the second electromagnet 644 respectively, and the iron block 84 drives the locking block 81 to move to the groove, thereby realizing the locking of the reinforcing block 641. At the same time, the reinforcing block 641 is plugged into the reinforcing plate 7 on the outside of the explosion-proof door 15, thereby further realizing the function of further locking the explosion-proof door 15.

[0073] And through the continuous introduction of inert gas, the fan blades rotate, and the inert gas is quickly discharged through the support end 6412 of the reinforcing block 641, and the discharged airflow is located outside the door frame 14, so as to isolate the combustible gas;

[0074] At the same time, in this embodiment, for the opened explosion relief door 15, one end of the plurality of reinforcing blocks 641 is still in a state of extending out of the supporting sleeve 63, which can accelerate the inert gas to enter the explosion space;

[0075] A positioning rod 6211 is provided on one side of the rotating block 621, and one end of the positioning rod 6211 passes through the air guide shell 5 and is fixedly connected to a handle 6212. The positioning rod 6211 is rotatably connected to the air guide shell 5. At the same time, when the experiment is completed, the second electromagnet 644 is powered off, and the locking block 81 is separated from the second electromagnet 644. At the same time, the locking block 81 moves to a position close to the arc-shaped guide plate 625. By manually rotating the handle 6212, the positioning rod 6211 drives the rotating rod 624 to rotate. At the same time, the arc-shaped guide plate 625 is driven to rotate through the rotating shaft 623, so that the two locking blocks 81 of the reinforcing block 641 move to the first electromagnet 643, thereby separating the supporting end 6412 of the reinforcing block 641 from the explosion-proof door 15.

[0076] The research method of the explosion prevention and control measures research device of the partitioned isolation underground energy storage system includes the following steps:

[0077] Step 1: The amount of thermal runaway combustible gas inside one of the rooms 12 may be much greater than the concentration required for explosion. After an explosion occurs, the explosion venting door 15 in the room 12 is opened, and the combustible mixed gas enters the explosion venting space 2;

[0078] Step 2: When the explosion-proof door 15 is opened, the air pump 44 is operated to pass the inert gas from the extension pipe 43 into the distribution pipe 42, and then pass into the separation pipes 3 through the distribution pipes 42. The multiple separation pipes 3 quickly spray inert gas at both ends of the explosion-proof door 15 inside the explosion-proof space 2 to form an inert gas wind wall, so that an independent separation area is formed inside the explosion-proof space 2 to prevent the combustible mixed gas from entering other rooms 12;

[0079] Step three: When the inert gas is introduced into the partition tube 3, the inert gas enters into the gas guide shell 5 through the partition tube 3. The inert gas passes through the gas guide shell 5 and synchronously drives the multiple rotating blades 622 to rotate, so that the rotating block 621 drives the rotating rod 624 to rotate. When the rotating rod 624 rotates, the two arc-shaped guide plates 625 rotate, so that one end of the reinforcing block 641 extends into the connecting hole 71 of the reinforcing plate 7. At this time, the explosion-proof doors 15 of the remaining rooms 12 are further locked to strengthen the tightness of the explosion-proof doors 15 of the remaining rooms 12 to avoid being affected by the explosion.

[0080] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0081] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for studying explosion prevention and control measures for a partitioned and isolated underground energy storage system, comprising a prevention and control laboratory (1), wherein a plurality of isolation walls (11) are arranged inside the prevention and control laboratory (1), wherein the interior of the prevention and control laboratory (1) is divided into a plurality of rooms (12) by the plurality of isolation walls (11), and two battery cabinets (13) are arranged inside the room (12), wherein a door frame (14) is arranged at the entrance of the room (12), and an explosion relief door (15) is installed at the door frame (14), and an explosion relief space (2) is arranged outside the plurality of explosion relief doors (15), wherein the plurality of explosion relief doors (15) are characterized in that: A separation pipe (3) is provided at one end of the top of the door frame (14) and located at the explosion relief space (2); the separation pipe (3) is located on one side of the opening of the explosion relief door (15); and a plurality of nozzles (31) are connected to the bottom of the separation pipe (3); The control laboratory (1) is provided with a gas supply mechanism (4), the gas supply mechanism (4) being used to supply inert gas to a plurality of partition tubes (3) in the explosion relief space (2), and to eject the inert gas through the partition tubes (3), so that the explosion relief space (2) is divided into independent explosion relief areas; One end of the partition tube (3) close to the partition wall (11) is connected to an air guide shell (5), a plurality of reinforcing mechanisms (6) are provided at the air guide shell (5), a reinforcing plate (7) is provided on one side of the plurality of reinforcing mechanisms (6), and a connecting hole (71) is provided on the reinforcing plate (7) corresponding to the reinforcing mechanism (6); The reinforcing plate (7) is fixedly mounted on the outside of the explosion relief door (15) and at one end away from the hinge on the explosion relief door (15).

2. The device for researching explosion prevention and control measures for a partitioned and isolated underground energy storage system according to claim 1 is characterized in that: The gas supply mechanism (4) comprises a connecting pipe (41), a distribution pipe (42), an extension pipe (43), an air pump (44) and an air storage box (45); a plurality of connecting pipes (41) are provided; one end of the connecting pipe (41) is connected to the partition pipe (3), and the other end of the connecting pipe (41) is connected to the distribution pipe (42); the distribution pipe (42) is fixedly installed in the control laboratory (1) and is located at the top of the explosion-proofing space (2); One end of the extension tube (43) is in communication with the distribution tube (42), and the other end of the extension tube (43) is in communication with an air pump (44). The air pump (44) is located outside the control laboratory (1), and an input end of the air pump (44) is in communication with an air storage box (45).

3. The device for researching explosion prevention and control measures for a partitioned and isolated underground energy storage system according to claim 1 is characterized in that: The inert gas forms a wind wall when it is ejected through the partition pipe (3).

4. The device for researching explosion prevention and control measures for a partitioned and isolated underground energy storage system according to claim 1 is characterized in that: The reinforcing mechanism (6) comprises a support tube (61), a rotating member (62), a support sleeve (63) and a reinforcing member (64); a plurality of the support tubes (61) are provided, and the plurality of support tubes (61) are distributed on one side of the air guide housing (5) close to the opening of the explosion relief door (15); The air guide housing (5) is provided with a through hole at a position corresponding to the support tube (61); the support sleeve (63) is in communication with the support tube (61); the reinforcing member (64) is installed inside the support sleeve (63); an end of the support sleeve (63) away from the support tube (61) is provided with a moving opening (631); the rotating member (62) passes through the opening; and the rotating member (62) is used to drive the reinforcing member (64).

5. The device for researching explosion prevention and control measures for a partitioned and isolated underground energy storage system according to claim 4 is characterized in that: A plurality of air holes (632) are provided at one end of the support sleeve (63) close to the support tube (61).

6. The device for researching explosion prevention and control measures for a partitioned and isolated underground energy storage system according to claim 4 is characterized in that: The rotating member (62) comprises a rotating block (621), rotating blades (622), a rotating shaft (623), a rotating rod (624) and an arc-shaped guide plate (625); the rotating block (621) is located inside the support tube (61); a plurality of rotating blades (622) are provided, and the plurality of rotating blades (622) are equidistantly distributed outside the rotating block (621); one end of the rotating shaft (623) is fixedly connected to the rotating block (621); the other end of the rotating shaft (623) passes through the support sleeve (63) and is fixedly connected to the rotating rod (624); the rotating shaft (623) is rotatably connected to the support sleeve (63); Two arc-shaped guide plates (625) are provided, and the two arc-shaped guide plates (625) are symmetrically distributed outside the rotating rod (624) about the X-axis line of the rotating rod (624).

7. The device for researching explosion prevention and control measures for a partitioned and isolated underground energy storage system according to claim 5 is characterized in that: The reinforcing member (64) comprises a reinforcing block (641), a connecting spring (642), a locking member (8), a first electromagnet (643) and a second electromagnet (644); a movable hole is provided inside the reinforcing block (641), and the reinforcing block (641) is sleeved on the outside of the rotating rod (624) and the two arc-shaped guide plates (625) through the movable hole; the connecting spring (642) is fixedly mounted inside the supporting sleeve (63), and the connecting spring (642) is sleeved on the outside of the rotating shaft (623) and the rotating rod (624); The reinforcing block (641) is composed of a connecting end (6411) and a supporting end (6412); the connecting end (6411) is fixedly connected to the connecting spring (642), and two air guide ports (6413) are provided at the supporting end (6412); Two mounting holes are provided at the connection end (6411), the locking member (8) is located inside the mounting hole, two of the first electromagnet (643) and the second electromagnet (644) are provided, and the support sleeve (63) is provided with grooves at positions corresponding to the first electromagnet (643) and the second electromagnet (644).

8. The device for researching explosion prevention and control measures for a partitioned and isolated underground energy storage system according to claim 7 is characterized in that: The locking member (8) comprises a locking block (81) with a hollow interior, a support frame (82), a locking spring (83) and an iron block (84); the locking block (81) is slidably connected to the mounting hole; a guide groove (811) is provided at a position of the locking block (81) corresponding to the support frame (82); two ends of the support frame (82) slide through the guide groove (811) and are fixedly connected to the inner wall of the mounting hole; One end of the locking spring (83) is fixedly connected to the support frame (82), and the other end of the locking spring (83) is fixedly connected to the internal cavity of the locking block (81), and the iron block (84) is fixedly mounted on one end of the locking block (81) close to the support sleeve (63).

9. The device for researching explosion prevention and control measures for a partitioned and isolated underground energy storage system according to claim 6, characterized in that: A positioning rod (6211) is provided on one side of the rotating block (621), and one end of the positioning rod (6211) passes through the air guide housing (5) and is fixedly connected to a handle (6212), and the positioning rod (6211) is rotatably connected to the air guide housing (5).

10. The research method of the device for researching explosion prevention and control measures of a partitioned and isolated underground energy storage system according to claim 9 is characterized in that: The following steps are involved: Step 1: The amount of thermally runaway combustible gas inside one of the rooms (12) may be much greater than the concentration required for explosion. After an explosion occurs, the explosion venting door (15) in the room (12) is opened, and the combustible mixed gas enters the explosion venting space (2); Step 2: When the explosion vent door (15) is opened, the air pump (44) is operated to pass the inert gas from the extension pipe (43) into the distribution pipe (42), and then pass the inert gas into the separation pipes (3) through the distribution pipes (42). The plurality of separation pipes (3) quickly spray the inert gas at both ends of the explosion vent door (15) inside the explosion vent space (2), forming an inert gas wind wall, so that an independent separation area is formed inside the explosion vent space (2), thereby preventing the flammable mixed gas from entering other rooms (12); Step 3: When the inert gas is introduced into the interior of the partition tube (3), the inert gas enters the gas guide shell (5) through the partition tube (3). The inert gas passes through the interior of the gas guide shell (5) and synchronously drives the plurality of rotating blades (622) to rotate, so that the rotating block (621) drives the rotating rod (624) to rotate. When the rotating rod (624) rotates, the two arc-shaped guide plates (625) rotate, so that one end of the reinforcing block (641) extends into the connecting hole (71) of the reinforcing plate (7). At this time, the explosion-proof doors (15) of the remaining rooms (12) are further locked, and the tightness of the explosion-proof doors (15) of the remaining rooms (12) is strengthened to avoid being affected by the explosion.

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