Underground gas storage device

Abstract

The utility model relates to the technical field of oil and gas storage, and discloses an underground gas storage device which comprises a gas inlet and outlet pipe, a gas inlet and outlet head, a sealing assembly, a gas storage cavity and a circulating mechanism. Through the multiple air inlet and outlet heads, air released by the air inlet and outlet pipe is more evenly filled in the air storage cavity, the situation that the air is not evenly distributed in the air storage cavity, and consequently the temperatures of all positions in the air storage cavity are inconsistent is avoided, meanwhile, the sealing assembly can better seal the containing space, and the circulation mechanism can conduct heat exchange on the air inlet and outlet pipe and the multiple air inlet and outlet heads. Therefore, the air inlet and outlet pipe and the air inlet and outlet heads can guarantee the working temperature, the technical problems that in the prior art, compressed air with uneven temperature distribution and uneven pressure causes cracking and even failure of a sealing layer, and normal operation of a project is affected are solved, and the purposes that the pressure of the compressed air in the containing space is balanced, the temperature is moderate, and the service life of the project is prolonged are achieved. Cracking or failure of the sealing layer is avoided, and the service life of the sealing layer is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas storage, in particular to an underground gas storage device. Background Art

[0002] Underground gas storage is the core component of a large-scale compressed air energy storage power station. Its temperature state during operation plays a decisive role in the performance and durability of the gas storage sealing layer material. At present, underground gas storages in compressed air energy storage power stations at home and abroad all adopt a large-diameter single inlet and outlet air intake method. The inlet and outlet are either arranged in the middle of the cave or at the end of the gas storage cave. After entering the gas storage cave, the charging and discharging pipelines no longer branch and directly send compressed air into the gas storage. When deflated, the compressed air in the gas storage can only be released through the charging and discharging pipes for power generation.

[0003] During the frequent inflation and deflation process, since the compressed air has only one inlet and outlet, the air flowability at the position far away from the inlet and outlet is poor, and the air temperature has poor thermal conductivity. Therefore, when the air in the gas storage is continuously compressed to a high pressure (greater than 5MPa) state, the temperature of the compressed air rises significantly, and the local maximum temperature can reach above 100°, and even 500° in extreme cases, so that the temperature distribution of the compressed air in the gas storage will also show a significantly uneven distribution characteristic. Compressed air with uneven temperature distribution and uneven pressure has a serious impact on the cracking characteristics and durability of the concrete lining and sealing layer of abandoned mines, mine shafts and newly excavated hard rock cave gas storages, causing cracking and leakage of the sealing layer, and even causing failure of the sealing layer, affecting the normal operation of the project. Utility Model Content

[0004] The utility model aims to provide an underground gas storage device to solve the technical problem in the prior art that the compressed air with uneven temperature distribution and uneven pressure leads to cracking of the sealing layer and even failure, thus affecting the normal operation of the project.

[0005] In order to solve the above technical problems, the utility model provides an underground gas storage device, including: an air inlet and outlet pipe, an air inlet and outlet head, a sealing component, an air storage cavity and a circulation mechanism;

[0006] An accommodating space is provided in the air storage cavity, a channel is provided on one side of the air storage cavity, and the sealing assembly is provided in the accommodating space and abuts against an end surface of the channel;

[0007] The air inlet and outlet heads are provided in plurality, and the plurality of air inlet and outlet heads are arranged at intervals along the surface of the air inlet and outlet pipes, and each of the air inlet and outlet heads is arranged in communication with the air inlet and outlet pipes;

[0008] The circulation mechanism is connected to the air inlet and outlet pipes, the circulation mechanism is connected to each of the air inlet and outlet heads, the air inlet and outlet pipes extend into the accommodating space with the air inlet and outlet heads and the circulation mechanism, and the air inlet and outlet pipes and the circulation mechanism are respectively connected to the sealing assembly.

[0009] In an optional embodiment, the opening directions of adjacent air inlet and outlet heads are arranged in opposite directions.

[0010] In an optional embodiment, the sealing assembly includes a sealing door and a sealing ring;

[0011] The sealing ring is arranged on one side of the sealing door close to the passage, the sealing door is connected to the sealing ring, and the circulation mechanism and the air inlet and outlet pipes are connected through the sealing door.

[0012] In an optional embodiment, it further includes a first guide rod, a second guide rod and a sliding block;

[0013] The first guide rod and the second guide rod are arranged in parallel, and the first guide rod and the second guide rod are arranged on the inner wall of the accommodating space at intervals along the length direction of the inlet and outlet air pipes. The first guide rod is slidably connected to the sealing door, and the sliding block is arranged on the inlet and outlet air pipes and slidably connected to the second guide rod.

[0014] In an optional embodiment, the circulation mechanism includes a first pipeline, a second pipeline, a circulation pump and a water tank;

[0015] The first pipeline and the second pipeline are respectively connected to the water tank, the second pipeline is connected to the circulation pump, the first pipeline is connected to the second pipeline, and the first pipeline is arranged on the inlet and outlet pipes and is respectively connected to each of the inlet and outlet heads.

[0016] In an optional embodiment, the first pipeline includes a first hard pipe and a first soft pipe, and the second pipeline includes a second hard pipe and a second soft pipe;

[0017] The first hard tube and the second hard tube are respectively arranged on the inlet and outlet air pipes, the first hard tube and the second hard tube are connected, the other end of the first hard tube is connected to the water tank via the first hose, and the other end of the second hard tube is connected to the water tank via the second hose.

[0018] In an optional embodiment, the inlet and outlet gas header includes an outlet hopper, a heat exchange tube, a heat exchange fin and a connector;

[0019] The outlet bucket is communicated with the inlet and outlet pipes, and the outlet bucket is connected to the connecting head, and the connecting head covers the surface of the inlet and outlet pipes. The connecting head and the outlet bucket are both provided with paths connected with the circulation mechanism. The outlet bucket is provided with the heat exchange tube connected with the path, and the heat exchange tube is provided with the heat exchange plate.

[0020] In an optional embodiment, the air inlet and outlet head further includes a baffle;

[0021] The partition is arranged in the path, and the partition is connected to the connecting head and the outlet bucket respectively.

[0022] In an optional embodiment, it also includes a driving member and a transmission assembly;

[0023] The driving member is arranged at one end of the air storage chamber, and the driving member is connected to the air inlet and outlet pipes through the transmission assembly. The driving member drives the air inlet and outlet pipes to reciprocate through the transmission assembly.

[0024] In an optional embodiment, the transmission assembly includes a connecting frame, a moving block and a slide groove;

[0025] The connecting frame is connected to one end of the air inlet and outlet pipes, the connecting frame is provided with the sliding groove, the moving block is slidably connected to the sliding groove, and the moving block is connected to the driving member.

[0026] The utility model provides an underground gas storage device, comprising: an air inlet and outlet pipe, an air inlet and outlet head, a sealing component, an air storage cavity and a circulation mechanism; through the multiple air inlet and outlet heads, the gas released by the air inlet and outlet pipe can fill the air storage cavity more evenly, avoiding uneven distribution of gas in the air storage cavity, resulting in inconsistent temperatures at various locations in the air storage cavity, and at the same time, the sealing component can better seal the accommodating space, and the circulation mechanism can respectively perform heat exchange on the air inlet and outlet pipe and the multiple air inlet and outlet heads, so that the air inlet and outlet pipe and the multiple air inlet and outlet heads can ensure the working temperature, solving the technical problems in the prior art that the compressed air with uneven temperature distribution and uneven pressure causes the sealing layer to crack or even fail, thus affecting the normal operation of the project, achieving balanced compressed air pressure and moderate temperature in the accommodating space, avoiding cracking or failure of the sealing layer, and increasing the service life of the sealing layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the underground gas storage device mentioned in the embodiment of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the air inlet and outlet pipes and the air inlet and outlet heads mentioned in the embodiment of the utility model;

[0029] Figure 3It is a structural schematic diagram of the first hard tube and the air inlet and outlet heads mentioned in the embodiment of the utility model;

[0030] Figure 4 It is a schematic diagram of the structure of the outlet hopper and the partition mentioned in the embodiment of the utility model.

[0031] In the figure, 1-inlet and outlet pipes; 2-inlet and outlet heads; 3-concrete protective wall; 4-accommodating space; 5-sealed door; 6-sealing ring; 7-first guide rod; 8-second guide rod; 9-slider; 10-first hard pipe; 11-first soft pipe; 12-second hard pipe; 13-second soft pipe; 14-circulating pump; 15-water tank; 16-outlet bucket; 17-heat exchange tube; 18-heat exchange plate; 19-connector; 20-partition; 21-driving member; 22-connecting frame; 23-moving block. DETAILED DESCRIPTION

[0032] The following is a further detailed description of the specific implementation of the present utility model in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the related art, due to the poor thermal conductivity of air temperature, when the air in the gas storage is continuously compressed to a pressure greater than 5MPa, the temperature of the compressed air rises significantly, and the local maximum temperature can reach above 100°, and even 500° in extreme cases, so that the temperature distribution of the compressed air in the gas storage will also show a significantly uneven distribution characteristic. At the same time, the setting of separate inlet and outlet air will cause the gas flow inside the gas storage to be unsmooth, resulting in uneven internal pressure distribution. The compressed air with uneven temperature distribution and uneven pressure has a serious impact on the cracking characteristics and durability of the concrete lining and sealing layer of abandoned mines, mines and newly excavated hard rock cave gas storages, causing cracking and leakage of the sealing layer, and even causing the sealing layer to fail, affecting the normal operation of the project.

[0035] In view of this, if Figure 1-Figure 4As shown, some embodiments of the utility model provide an underground gas storage device, including: an air inlet and outlet pipe 1, an air inlet and outlet head 2, a sealing assembly, an air storage chamber and a circulation mechanism; an accommodating space 4 is provided in the air storage chamber, a channel is provided on one side of the air storage chamber, the sealing assembly is provided in the accommodating space 4 and abuts against the end face of the channel; a plurality of air inlet and outlet heads 2 are provided, and the plurality of air inlet and outlet heads 2 are arranged at intervals along the surface of the air inlet and outlet pipe 1, and each air inlet and outlet head 2 is arranged in communication with the air inlet and outlet pipe 1; the circulation mechanism is connected to the air inlet and outlet pipe 1, and the circulation mechanism is connected to each air inlet and outlet head 2, the air inlet and outlet pipe 1 extends into the accommodating space 4 with the air inlet and outlet head 2 and the circulation mechanism, and the air inlet and outlet pipe 1 and the circulation mechanism are respectively connected to the sealing assembly.

[0036] In the above embodiment, a concrete protective wall 3 can be provided on the outside of the air storage chamber, a containing space 4 is provided inside the air storage chamber and a channel is provided on the left side, the channel can be provided horizontally, the cross section of the channel can be circular, a sealing component is provided at the connection between the channel and the containing space 4, the sealing component is sleeved on both the inlet and outlet air pipes 1 and the circulation machine, the sealing component can be detachably connected to the inner wall of the containing space 4, the sealing component is used to seal the channel to prevent the compressed gas in the containing space 4 from overflowing through the channel, and at the same time ensure that when maintenance is required, the sealing component can be opened to allow the staff to enter the containing space 4 and carry out maintenance. Maintenance, further, the inlet and outlet pipe 1 can be made of metal material, and a section of the inlet and outlet pipe 1 extending into the accommodating space 4 is provided with a plurality of inlet and outlet heads 2, and the plurality of inlet and outlet heads 2 are arranged at intervals along the length direction of the inlet and outlet pipe 1, and each inlet and outlet head 2 is connected to the inside of the inlet and outlet pipe 1, and each inlet and outlet head 2 is used to release the gas inside the inlet and outlet pipe 1. The internal gas of the inlet and outlet pipe 1 is released through the plurality of inlet and outlet heads 2, thereby avoiding uneven internal pressure caused by a single release port and uneven internal temperature caused by the unsmooth internal gas flow, which may cause cracking of the concrete retaining wall 3 or even failure.

[0037] Furthermore, a circulation mechanism can be arranged on the inlet and outlet pipes 1, and a heat exchange medium, such as water, oil, etc., is arranged inside the circulation mechanism. The circulation mechanism is connected to each inlet and outlet head 2 so that the circulation mechanism can absorb and store the heat on the inlet and outlet pipes 1 and each inlet and outlet head 2, and then the stored heat can be released to the inlet and outlet pipes 1 and each inlet and outlet head 2 next time.

[0038] Some embodiments of the utility model provide an underground gas storage device, including: an air inlet and outlet pipe 1, an air inlet and outlet head 2, a sealing component, an air storage chamber and a circulation mechanism; through multiple air inlet and outlet heads 2, the gas released by the air inlet and outlet pipe 1 can fill the air storage chamber more evenly, avoiding uneven distribution of gas in the air storage chamber, resulting in inconsistent temperatures in various places in the air storage chamber, and at the same time, the sealing component can better seal the accommodating space 4, and the circulation mechanism can respectively exchange heat for the air inlet and outlet pipe 1 and the multiple air inlet and outlet heads 2, so that the air inlet and outlet pipe 1 and the multiple air inlet and outlet heads 2 can ensure the working temperature, solving the technical problems in the prior art that the uneven temperature distribution and the uneven pressure of compressed air cause the sealing layer to crack or even fail, affecting the normal operation of the project, and achieving balanced compressed air pressure and moderate temperature in the accommodating space 4, avoiding cracking or failure of the sealing layer, and increasing the service life of the sealing layer.

[0039] In some optional embodiments, the opening directions of adjacent air inlet and outlet heads 2 are arranged in opposite directions.

[0040] In the above embodiment, a plurality of air inlet and outlet heads 2 are arranged on the air inlet and outlet pipe 1 at intervals along the length direction, and the opening directions of adjacent air inlet and outlet heads 2 can be arranged at an angle, such as Figure 1 As shown, the angle between adjacent air inlet and outlet heads 2 can be 90°, 180°, 60°, etc. By arranging air inlet and outlet heads 2 with openings in different directions, the gas in the air inlet and outlet pipe 1 can be transported to various positions in the air storage chamber, thereby avoiding the problems of internal gas flow phase difference, uneven pressure distribution and uneven temperature distribution.

[0041] In some optional embodiments, the sealing assembly includes a sealing door 5 and a sealing ring 6; a sealing ring 6 is provided on the side of the sealing door 5 close to the channel, the sealing door 5 is connected to the sealing ring 6, and the circulation mechanism and the inlet and outlet air pipes 1 are connected through the sealing door 5.

[0042] In the above embodiment, the sealing ring 6 can be made of rubber material, the sealing door 5 can be made of metal material, the sealing door 5 can be cylindrical, and a sealing ring 6 is provided on the side facing the channel, the diameter of the sealing ring 6 is larger than the diameter of the channel, and the diameter of the sealing door 5 is larger than the diameter of the sealing ring 6, the sealing ring 6 can be fixed to the sealing door 5 by gluing or bolting, the sealing door 5 can bring the sealing ring 6 closer to or away from the channel, and when the axes of the sealing door 5, the sealing ring 6 and the channel coincide, the sealing door 5 can seal and open the connection between the channel and the accommodating space 4 through the sealing ring 6 to avoid internal gas leakage, resulting in inconsistent internal temperature and inconsistent internal pressure.

[0043] Optionally, an air inlet and outlet pipe 1 and a circulation mechanism can be provided at the axial position of the sealing door 5, wherein the circulation mechanism can be provided on the surface of the air inlet and outlet pipe 1, and the circulation mechanism and the air inlet and outlet pipe 1 can be connected to the sealing door 5 by welding to avoid air leakage at the connection position between the circulation mechanism, the air inlet and outlet pipe 1 and the sealing door 5.

[0044] In some optional embodiments, it also includes a first guide rod 7, a second guide rod 8 and a sliding block 9; the first guide rod 7 and the second guide rod 8 are arranged in parallel, and the first guide rod 7 and the second guide rod 8 are arranged on the inner wall of the accommodating space 4 at intervals along the length direction of the inlet and outlet air pipes 1, the first guide rod 7 is slidably connected to the sealing door 5, and the sliding block 9 is arranged on the inlet and outlet air pipes 1 and is slidably connected to the second guide rod 8.

[0045] In the above embodiment, the first guide rod 7 and the second guide rod 8 are parallel to each other and are arranged on the inner walls of the accommodating space 4 on both sides thereof away from each other along the length direction of the inlet and outlet air pipe 1. The first guide rod 7 can pass through the sliding hole on the sealing door 5, wherein the sliding hole can be arranged on the outer side of the sealing ring 6 to avoid affecting the sealing effect of the sealing ring 6. The sliding hole is slidably connected to the first guide rod 7, and a sliding block 9 can be arranged on the end surface of the inlet and outlet air pipe 1 close to the second guide rod 8. A sliding channel can also be arranged on the sliding block 9, and the sliding block 9 is also slidably connected to the second guide rod 8 through the sliding channel, so that when the sealing door 5 approaches or moves away from the inner wall of the accommodating space 4, the inlet and outlet air pipe 1 can move in parallel along the length direction of the first guide rod 7. Through the cooperation of the first guide rod 7, the second guide rod 8, the sealing door 5 and the sliding block 9, the sealing door 5 can be moved away from the channel along the length direction of the first guide rod 7, and can also be close to the channel and sealed in the length direction of the first guide rod 7.

[0046] In some optional embodiments, the circulation mechanism includes a first pipe, a second pipe, a circulation pump 14 and a water tank 15; the first pipe and the second pipe are respectively connected to the water tank 15, the second pipe is connected to the circulation pump 14, the first pipe is connected to the second pipe, and the first pipe is arranged on the inlet and outlet pipes 1 and is respectively connected to each inlet and outlet head 2.

[0047] In the above embodiment, one end of the first pipe and the second pipe respectively extend into the water tank 15 and are connected to the inside of the water tank 15, and the other ends of the first pipe and the second pipe are connected, and the first pipe is arranged on a section of the inlet and outlet pipes 1 and is respectively connected to each inlet and outlet head 2, so that the heat exchange medium in the water tank 15 can enter each inlet and outlet head 2 through the first pipe for heat exchange, or it can be arranged on the inlet and outlet pipes 1 to exchange heat with the inlet and outlet pipes 1, and then enter the water tank 15 through the second pipe after heat exchange to store heat, wherein the circulating pump 14 can be arranged in the water tank 15 and connected to the first pipe, and the circulating pump 14 can pump the heat exchange medium in the water tank 15 into the first pipe, so that the heat exchange medium enters the water tank 15 again after passing through the first pipe, each inlet and outlet head 2 and the second pipe.

[0048] In some optional embodiments, the first pipeline includes a first hard pipe 10 and a first soft pipe 11, and the second pipeline includes a second hard pipe 12 and a second soft pipe 13; the first hard pipe 10 and the second hard pipe 12 are respectively arranged on the inlet and outlet air pipes 1, the first hard pipe 10 and the second hard pipe 12 are connected, the other end of the first hard pipe 10 is connected to the water tank 15 via the first soft pipe 11, and the other end of the second hard pipe 12 is connected to the water tank 15 via the second soft pipe 13.

[0049] In the above embodiment, the first hard tube 10 can be made of metal, the first soft tube 11 can be made of rubber, or other deformable pipe materials. The first hard tube 10 is arranged on the inlet and outlet pipes 1 and connected to each inlet and outlet head 2, and then the first hard tube 10 is connected to one end of the second hard tube 12. The other end of the first hard tube 10 is connected to the first soft tube 11 and then extends into the bottom of the water tank 15 through the first soft tube 11 and is connected to the circulation pump 14 at the bottom. The second hard tube 12 is also arranged on the inlet and outlet pipes 1, and the other end of the second hard tube 12 is connected to the water tank 15 through the second soft tube 13, and the end face of the second soft tube 13 is arranged on the top of the water tank 15, so that the heat exchange medium pumped into the first soft tube by the circulation pump 14 can exchange heat with the inlet and outlet pipes 1 and each inlet and outlet head 2 through the first heat pipe, and then enter the second hard tube 12 and enter the upper end of the water tank 15 through the second soft tube 13, thereby realizing a heat exchange cycle.

[0050] Optionally, during the inflation and deflation process, due to the different forms of heat exchange, when the accommodating space 4 is inflated, the temperature of the air inlet and outlet pipes 1 and each air inlet and outlet head 2 increases, and the heat exchange medium stores the heat of the air inlet and outlet pipes 1 and each air inlet and outlet head 2 in the water tank 15, thereby avoiding excessive temperature differences at various locations in the accommodating space 4. During the deflation process, the temperature of the air inlet and outlet pipes 1 and each air inlet and outlet head 2 is relatively low. At this time, the heat exchange medium transfers the heat in the water tank 15 to the air inlet and outlet pipes 1 and each air inlet and outlet head 2, thereby ensuring the temperature balance at various locations in the accommodating space 4 again, thereby avoiding excessive temperature differences at various locations that may cause damage to the concrete protective wall 3.

[0051] In some optional embodiments, the inlet and outlet head 2 includes an outlet hopper 16, a heat exchange tube 17, a heat exchange plate 18 and a connecting head 19; the outlet hopper 16 is connected to the inlet and outlet pipes 1, the outlet hopper 16 is connected to the connecting head 19, the connecting head 19 is covered on the surface of the inlet and outlet pipes 1, the connecting head 19 and the outlet hopper 16 are both provided with a path connected to the circulation mechanism, the outlet hopper 16 is provided with a heat exchange tube 17 connected to the path, and the heat exchange tube 17 is provided with a heat exchange plate 18.

[0052] In the above embodiment, the shapes and sizes of multiple air inlet and outlet heads 2 are consistent. Taking one air inlet and outlet head 2 as an example, the outlet bucket 16 is funnel-shaped, and the smaller width of the outlet bucket 16 is connected to the connecting head 19, and the connecting head 19 is sleeved on the inlet and outlet air pipes 1 to make the smaller width of the outlet bucket 16 communicate with the inside of the inlet and outlet air pipes 1. Furthermore, the connecting head 19 is connected to the first rigid tube 10, and the heat exchange medium in the first rigid tube 10 can enter through the path on one side of the connecting head 19 and exchange heat with the connecting head 19 and the outlet bucket 16 on one side. Then, the heat exchange medium is more fully heat-exchanged through the heat exchange tube 17 and the heat exchange plate 18 on the outlet bucket 16, and then, after heat exchange through the outlet bucket 16 and the connecting head 19 on the other side, it enters the second rigid tube 12 and is stored in the water tank 15.

[0053] Optionally, the heat exchange medium in the first rigid tube 10 can enter through the path on one side of the connector 19 and exchange heat with the connector 19 and the outlet bucket 16 on one side. Then, the heat exchange medium is more fully heat exchanged through the heat exchange tube 17 and the heat exchange plate 18 on the outlet bucket 16, and then heat exchanged through the outlet bucket 16 and the connector 19 on the other side, and then enters the first rigid tube 10 again. Then, it enters multiple air inlet and outlet heads 2 in sequence in the same manner, enters the second rigid tube 12, and then enters the water tank 15 through the second hose 13 for storage.

[0054] In some optional embodiments, the air inlet and outlet head 2 further includes a partition 20; the partition 20 is disposed in the path, and the partition 20 is connected to the connecting head 19 and the outlet bucket 16 respectively.

[0055] In the above embodiment, two partitions 20 are provided, one partition 20 is provided on the connecting head 19, and is used to block the path in the connecting head 19, so that the heat exchange medium flowing into the connecting head 19 can flow into the outlet bucket 16 through the path, and the other partition 20 is provided in the open bucket. After the heat exchange is completed, the heat exchange medium on one side of the open bucket can only enter the open bucket on the other side through the heat exchange tubes 17 and the heat exchange plates 18 on the open bucket under the obstruction of the other partition 20, and cannot directly enter the other open bucket and the connecting head 19 without passing through the heat exchange tubes 17 and the heat exchange plates 18. The heat exchange plates 18 and the heat exchange tubes 17 make the path of the heat exchange medium longer and the heat exchange efficiency higher.

[0056] In some optional embodiments, a driving member 21 and a transmission assembly are also included; the driving member 21 is arranged at one end of the air storage chamber, the driving member 21 is connected to the inlet and outlet air pipes 1 through the transmission assembly, and the driving member 21 drives the inlet and outlet air pipes 1 to reciprocate through the transmission assembly.

[0057] In the above embodiment, the driving member 21 may include an oil cylinder, and the transmission assembly is arranged at one end of the inlet and outlet air pipes 1 extending out of the accommodating space 4. The driving member 21 drives the inlet and outlet air pipes 1 to move in parallel through the transmission assembly. Figure 1 As shown, when the driving member 21 contracts, the driving member 21 drives the inlet and outlet air pipes 1 to move through the transmission assembly. At this time, the inlet and outlet air pipes 1 move along the direction of the first guide rod 7 under the action of the first guide rod 7 and the second guide rod 8. At this time, the sealing door 5 is opened and the staff can enter through the passage. When the sealing door 5 needs to be closed, the driving member 21 pushes the inlet and outlet air pipes 1 to move along the direction of the first guide rod 7 through the transmission assembly. At this time, the sealing door 5 is attached to the end face of the passage and seals the accommodating space 4 through the sealing ring 6.

[0058] Optionally, during the movement of the air inlet and outlet pipe 1, the air inlet and outlet pipe 1 moves to the direction of the air inlet and outlet pipe 1. Figure 1 When the lower right portion shown moves, the first hose 11 and the second hose 13 can be stretched appropriately to prevent the first hose 11 and the second hose 13 from breaking. At the same time, excess length can be preset at the first hose 11 and the second hose 13 to meet the movement of the inlet and outlet air pipes 1.

[0059] In some optional embodiments, the transmission assembly includes a connecting frame 22, a movable block 23 and a slide groove; the connecting frame 22 is connected to one end of the inlet and outlet air pipes 1, a slide groove is provided on the connecting frame 22, the movable block 23 is slidably connected to the slide groove, and the movable block 23 is connected to the driving member 21.

[0060] In the above embodiment, the connecting frame 22 is arranged perpendicular to the air inlet and outlet pipes 1. Figure 1 As shown, the connecting frame 22 is inserted into the inlet and outlet pipes 1, and a through slide groove extending perpendicular to the inlet and outlet pipes 1 is provided on the connecting frame 22, and the moving block 23 is embedded in the slide groove and slidably connected to the slide groove. The moving block 23 is also connected to the driving member 21, so that during the extension and retraction of the driving member 21, the moving block 23 can be driven by the driving member 21 to reciprocate along the length direction of the inlet and outlet pipes 1. At this time, under the action of the connecting frame 22, the inlet and outlet pipes 1 have the following Figure 1At this time, under the action of the first guide rod 7 and the second guide rod 8, the left-right movement trend of the air inlet and outlet pipe 1 is converted into a trend of movement along the length direction of the first guide rod 7, so that in order to satisfy the movement of the air inlet and outlet pipe 1 along the length direction of the first guide rod 7, the slide groove on the connecting frame 22 begins to slide relative to the moving block 23 to complete the movement of the air inlet and outlet pipe 1, that is, to satisfy the opening and sealing of the accommodating space 4 by the sealing door 5 and the sealing ring 6.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An underground gas storage device, characterized in that: include: Inlet and outlet pipes, inlet and outlet heads, sealing components, air storage chambers and circulation mechanisms; An accommodating space is provided in the air storage cavity, a channel is provided on one side of the air storage cavity, and the sealing assembly is provided in the accommodating space and abuts against an end surface of the channel; The air inlet and outlet heads are provided in plurality, and the plurality of air inlet and outlet heads are arranged at intervals along the surface of the air inlet and outlet pipes, and each of the air inlet and outlet heads is arranged in communication with the air inlet and outlet pipes; The circulation mechanism is connected to the air inlet and outlet pipes, the circulation mechanism is connected to each of the air inlet and outlet heads, the air inlet and outlet pipes extend into the accommodating space with the air inlet and outlet heads and the circulation mechanism, and the air inlet and outlet pipes and the circulation mechanism are respectively connected to the sealing assembly.

2. The underground gas storage device according to claim 1, characterized in that: The opening directions of adjacent air inlet and outlet heads are arranged in opposite directions.

3. The underground gas storage device according to claim 1, characterized in that: The sealing assembly comprises a sealing door and a sealing ring; The sealing ring is arranged on one side of the sealing door close to the passage, the sealing door is connected to the sealing ring, and the circulation mechanism and the air inlet and outlet pipes are connected through the sealing door.

4. The underground gas storage device according to claim 3, characterized in that: It also includes a first guide rod, a second guide rod and a sliding block; The first guide rod and the second guide rod are arranged in parallel, and the first guide rod and the second guide rod are arranged on the inner wall of the accommodating space at intervals along the length direction of the inlet and outlet air pipes. The first guide rod is slidably connected to the sealing door, and the sliding block is arranged on the inlet and outlet air pipes and slidably connected to the second guide rod.

5. The underground gas storage device according to claim 1, characterized in that: The circulation mechanism comprises a first pipeline, a second pipeline, a circulation pump and a water tank; The first pipeline and the second pipeline are respectively connected to the water tank, the second pipeline is connected to the circulation pump, the first pipeline is connected to the second pipeline, and the first pipeline is arranged on the inlet and outlet pipes and is respectively connected to each of the inlet and outlet heads.

6. The underground gas storage device according to claim 5, characterized in that: The first pipeline includes a first hard pipe and a first soft pipe, and the second pipeline includes a second hard pipe and a second soft pipe; The first hard tube and the second hard tube are respectively arranged on the inlet and outlet air pipes, the first hard tube and the second hard tube are connected, the other end of the first hard tube is connected to the water tank via the first hose, and the other end of the second hard tube is connected to the water tank via the second hose.

7. The underground gas storage device according to claim 1, characterized in that: The inlet and outlet gas heads include an outlet hopper, a heat exchange tube, a heat exchange fin and a connector; The outlet bucket is communicated with the inlet and outlet pipes, and the outlet bucket is connected to the connecting head, and the connecting head covers the surface of the inlet and outlet pipes. The connecting head and the outlet bucket are both provided with paths connected with the circulation mechanism. The outlet bucket is provided with the heat exchange tube connected with the path, and the heat exchange tube is provided with the heat exchange plate.

8. The underground gas storage device according to claim 7, characterized in that: The air inlet and outlet head also includes a partition; The partition is arranged in the path, and the partition is connected to the connecting head and the outlet bucket respectively.

9. The underground gas storage device according to claim 1, characterized in that: Also includes drive members and transmission components; The driving member is arranged at one end of the air storage chamber, and the driving member is connected to the air inlet and outlet pipes through the transmission assembly. The driving member drives the air inlet and outlet pipes to reciprocate through the transmission assembly.

10. The underground gas storage device according to claim 9, characterized in that: The transmission assembly includes a connecting frame, a moving block and a slide groove; The connecting frame is connected to one end of the air inlet and outlet pipes, the connecting frame is provided with the sliding groove, the moving block is slidably connected to the sliding groove, and the moving block is connected to the driving member.

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