Channel and gas storage structure applied to gas storage

Abstract

This invention discloses a channel and gas storage structure for a gas storage facility. The gas storage facility has an outer membrane; a first cavity is formed within the outer membrane; the channel includes: a channel body having a first end and a second end opposite to each other, and a sidewall located between the first end and the second end; the first end is sealed to the outer membrane; an inner door is provided at the first end, and an outer door is provided at the second end; the sidewall, the inner door, and the outer door together enclose the channel cavity; the inner door opening or closing enables the channel cavity to communicate with or isolate from the first cavity, and the outer door opening or closing enables the channel cavity to communicate with or isolate from the atmosphere; an airflow conveying component, one end of which communicates with the channel cavity and the other end of which communicates with the atmosphere; the airflow conveying component is used for airflow transmission between the gas in the first cavity and the atmosphere. The channel and gas storage structure disclosed in this invention can reduce the number of openings on the outer membrane, reduce the problem of gas storage facility leakage caused by rupture at the openings, and ensure the safe and stable operation of the gas storage facility.

Description

Technical Field

[0001] This invention relates to the field of gas storage technology, and more particularly to a channel for use in gas storage and a gas storage structure. Background Technology

[0002] Gas storage facilities are used to store gases, such as methane and other gaseous fuels, or carbon dioxide in carbon dioxide energy storage systems. A gas storage facility consists of a membrane material and a foundation. The membrane material includes an inner membrane and an outer membrane. Storage spaces are formed within the inner membrane for storing the gas medium. A cavity is formed between the inner and outer membranes. The shape of the gas storage facility and the gas pressure within it can be adjusted by supplying gas into or venting gas into the cavity to the external environment. However, in existing technologies, ventilation devices are directly connected to the outer membrane. The more connections between the outer membrane and the ventilation devices, the less robust the outer membrane becomes, making it more prone to rupture and leading to leaks and other accidents. Summary of the Invention

[0003] Therefore, in order to solve the problem that direct connection of the air supply and exhaust equipment to the outer membrane in the prior art can easily lead to the rupture of the outer membrane and leakage, the present invention provides a channel and a gas storage structure for use in gas storage facilities, which can reduce the number of openings on the outer membrane, reduce the problem of gas storage leakage caused by rupture at the openings, and ensure the safe and stable operation of the gas storage facility.

[0004] An embodiment of the present invention provides a channel for a gas storage facility, the gas storage facility having an outer membrane; a first cavity is formed within the outer membrane; the channel includes: a channel body having a first end and a second end opposite to each other, and a sidewall located between the first end and the second end; the first end is sealed to the outer membrane; the first end is provided with an inner door, and the second end is provided with an outer door, the sidewall, the inner door, and the outer door together enclosing to form an inner cavity of the channel; when the inner door is open, the inner cavity of the channel is connected to the first cavity, and when the inner door is closed, the inner cavity of the channel is isolated from the first cavity; when the outer door is open, the inner cavity of the channel is connected to the atmosphere, and when the outer door is closed, the inner cavity of the channel is isolated from the atmosphere; an airflow conveying assembly, one end of which is connected to the inner cavity of the channel, and the other end of which is connected to the atmosphere; the airflow conveying assembly is used for airflow transmission between the gas in the first cavity and the atmosphere.

[0005] In one embodiment, the airflow delivery assembly is disposed within the inner cavity of the channel, with one end of the airflow delivery assembly communicating with the atmosphere passing through the side wall of the channel body; or, the airflow delivery assembly is disposed outside the inner cavity of the channel, with one end of the airflow delivery assembly communicating with the inner cavity of the channel passing through the side wall of the channel body.

[0006] In one embodiment, the airflow conveying assembly includes an air supply device, the inlet of which is connected to the atmosphere and the outlet of which is connected to the inner cavity of the channel, the air supply device being used to fill the first cavity with air from the atmosphere; and / or, the airflow conveying assembly includes an exhaust device, the inlet of which is connected to the inner cavity of the channel and the outlet of which is connected to the atmosphere, the exhaust device being used to exhaust the gas in the first cavity to the atmosphere.

[0007] In one embodiment, the channel further includes a flexible connection structure, through which the outer membrane and the first end of the channel body are connected.

[0008] In one embodiment, the channel further includes a pressure measuring device for acquiring air pressure information within the first cavity; the airflow delivery assembly is also configured to operate based on the air pressure information acquired by the pressure measuring device within the first cavity.

[0009] In one embodiment, the channel further includes a control component disposed within the channel cavity and electrically connected to the airflow delivery component.

[0010] One embodiment of the present invention provides a gas storage structure, including a gas storage tank and a channel of any of the foregoing, wherein the gas storage tank has an outer membrane and a first cavity is formed inside the outer membrane; the first end of the channel is sealed and connected to the outer membrane.

[0011] In one embodiment, the gas storage tank further includes an inner membrane disposed within the first cavity, the first cavity being divided by the inner membrane into a sandwich cavity located between the inner membrane and an outer membrane, and a storage cavity located within the inner membrane; the airflow delivery assembly is used for airflow transmission between the gas in the sandwich cavity and the atmosphere.

[0012] As can be seen from the above, the above embodiments of the present invention can achieve one or more of the following beneficial effects: by setting a channel body connected to the outer membrane of the gas storage tank, a channel cavity is formed in the channel body, and the airflow conveying component is connected to the channel cavity. By controlling the opening and closing states of the inner and outer doors, the airflow conveying component can realize the airflow transmission between the gas in the first cavity and the atmosphere through the channel cavity. This can reduce the number of openings on the outer membrane of the gas storage tank and reduce the problem of gas storage tank leakage caused by rupture at the openings. Attached Figure Description

[0013] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0014] Figure 1a This is a three-dimensional structural diagram of a gas storage structure provided in an embodiment of the present invention.

[0015] Figure 1b for Figure 1a The diagram shows a side view of the gas storage structure.

[0016] Figure 1c for Figure 1a The diagram shows the front view of the gas storage structure.

[0017] Figure 1d for Figure 1a The diagram shows a top view of the gas storage structure.

[0018] Figure 2 This is a top view of a gas storage structure provided in another embodiment of the present invention.

[0019] Figure 3 This is a top view of a gas storage structure provided in another embodiment of the present invention.

[0020] Figure 4 This is a top view of a gas storage structure provided in another embodiment of the present invention.

[0021] Figure 5 This is a top view of a gas storage structure provided in another embodiment of the present invention.

[0022] [Explanation of Labels in the Attached Image]

[0023] 10: Gas storage tank; 11: Outer membrane; 111: First cavity; 12: Inner membrane; 13: Interlayer cavity; 14: Storage cavity; 20: Channel; 21: Channel body; 211: Side wall; 212: First end; 213: Second end; 22: Inner door; 23: Outer door; 24: Channel inner cavity; 25: Flexible connection structure; 251: Connection cavity; 26: Air transport assembly; 261: Air supply device; 262: Exhaust device; 27: Pressure measuring device; 28: Control assembly. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] It should also be noted that the division of multiple embodiments in this invention is only for the convenience of description and should not constitute a special limitation. Features in various embodiments can be combined and referenced in each other without contradiction.

[0028] One embodiment of the present invention provides a channel 20 applied to a gas storage tank 10, such as... Figure 1a As shown, the gas storage tank 10 includes an outer membrane 11, within which a first cavity 111 is formed. (Refer to...) Figures 1b-1d The channel 20 includes a channel body 21 and an airflow conveying assembly 26. The channel body 21 has a first end 212 and a second end 213 opposite to each other, and a sidewall 211 located between the first end 212 and the second end 213. The first end 212 is sealed to the outer membrane 11. The first end 212 is provided with an inner door 22, and the second end 213 is provided with an outer door 23. The sidewall 211, the inner door 22, and the outer door 23 together enclose a channel cavity 24. When the inner door 22 is open, the channel cavity 24 is connected to the first cavity 111. When the inner door 22 is closed, the channel cavity 24 is isolated from the first cavity 111. When the outer door 23 is open, the channel cavity 24 is connected to the atmosphere. When the outer door 23 is closed, the channel cavity 24 is isolated from the atmosphere. One end of the airflow conveying assembly 26 is connected to the channel cavity 24, and the other end is connected to the atmosphere. The airflow conveying assembly 26 is used for airflow transmission between the gas in the first cavity 111 and the atmosphere.

[0029] The gas storage facility 10 is, for example, a gas-supported membrane structure for storing gaseous fuels such as methane or for storing carbon dioxide in a carbon dioxide energy storage system. The outer membrane 11 isolates the interior space of the gas storage facility 10 from the atmosphere. The outer membrane 11 is a flexible membrane material. The airflow conveying assembly 26 can be used to transport airflow, for example, it can be a fan. In this embodiment, one end of the airflow conveying assembly 26 is connected to the inner cavity 24 of the channel. When gas in the first cavity 111 is transferred to the atmosphere, the above connection method allows the gas to first enter the inner cavity 24 of the channel from the first cavity 111 (at this time, the inner door 22 is open), and then be output to the atmosphere from the inner cavity 24 by the airflow conveying assembly 26. When gas in the atmosphere is transported into the first cavity 111, the above connection method allows the gas to first be transported from the atmosphere to the inner cavity 24 by the airflow conveying assembly 26, and then enter the first cavity 111 from the inner cavity 24 (at this time, the inner door 22 is open). Therefore, through the above configuration, the airflow delivery component 26 is connected to the outer membrane 11 through the channel body 21, which can reduce the number of openings on the outer membrane 11, so as to avoid the problem of gas leakage due to the rupture of the openings of the outer membrane 11, and make the gas storage tank 10 operate more safely and stably.

[0030] The operating principle of the channel 20 applied to the gas storage tank 10 provided in this embodiment of the invention is as follows: the outer door 23 is closed, the inner door 22 is open, and only the inner cavity 24 of the channel is connected to the first cavity 111. When the inner cavity 24 of the channel is connected to the first cavity 111, the airflow conveying component 26 can realize the airflow interaction between the atmosphere and the first cavity 111. Other objects or personnel in the inner cavity 24 of the channel can also enter the first cavity 111 through the inner door 22 (or enter the inner cavity 24 of the channel from the first cavity 111). When the inner door 22 is closed and the outer door 23 is open, only the inner cavity 24 of the channel is connected to the atmosphere. When the inner cavity 24 of the channel is connected to the atmosphere, other objects or personnel outside the outer door 23 can enter the inner cavity 24 of the channel through the outer door 23 (or exit from the inner cavity 24 of the channel to the outer door 23). Therefore, by switching the opening and closing of the inner door 22 and the outer door 23, the transportation of materials or the entry and exit of personnel through the inner cavity 24 of the channel can be realized, and gas leakage in the first cavity 111 can be prevented.

[0031] When the pressure inside the first chamber 111 is too high, or in other situations requiring rapid venting and pressure relief, the inner door 22 and the outer door 23 can be opened, connecting the atmosphere, the inner cavity 24 of the passage, and the first chamber 111. This allows the gas inside the first chamber 111 to be directly discharged to the atmosphere through the inner door 22, the inner cavity 24 of the passage, and the outer door 23.

[0032] In some embodiments, the inner door 22 is a normally open door, and the outer door 23 is a normally closed door. This ensures that during normal operation, the inner door 22 is open, and the inner cavity 24 of the passage is connected to the first cavity 111. Airflow delivered by the airflow delivery assembly 26 can pass through the inner door 22 into the first cavity 111 via the inner cavity 24, or it can pass through the inner door 22 into the inner cavity 24 of the first cavity 111 and then be discharged to the atmosphere. This arrangement facilitates the delivery of airflow via the airflow delivery assembly 26 at any time.

[0033] In some embodiments, the inner door 22 and the outer door 23 are interlocked such that when one of the inner door 22 and the outer door 23 is opened, the other of the inner door 22 and the outer door 23 is closed. That is, when the inner door 22 is open, the outer door 23 is closed, and when the outer door 23 is open, the inner door 22 is closed. For example, when the passage cavity 24 is used for transportation or as a personnel passage, if a worker or vehicle needs to enter the first cavity 111 from outside the outer door 23, the inner door 22 is closed first, and then the outer door 23 is opened. Only the passage cavity 24 is connected to the atmosphere, and the first cavity 111 is isolated from the passage cavity 24. After entering the passage cavity 24 through the outer door 23, the outer door 23 is closed and the inner door 22 is opened. At this time, only the passage cavity 24 is connected to the first cavity 111, and one can enter the first cavity 111 through the inner door 22. The passage cavity 24 is isolated from the atmosphere, ensuring that the gas in the first cavity 111 does not leak into the atmosphere, thus maintaining the shape of the outer membrane 11.

[0034] Reference Figure 2 In some embodiments, the airflow delivery assembly 26 is disposed within the inner cavity 24 of the channel, with one end of the airflow delivery assembly 26 communicating with the atmosphere through the side wall 211 of the channel body 21. That is, when the airflow delivery assembly 26 is used to deliver gas from the atmosphere into the first cavity 111, the air inlet end of the airflow delivery assembly 26 communicates with the atmosphere through the side wall 211 of the channel body 21. When the airflow delivery assembly 26 is used to deliver gas from the first cavity 111 into the atmosphere, the air outlet end of the airflow delivery assembly 26 communicates with the atmosphere through the side wall 211 of the channel body 21. When the airflow delivery assembly 26 is disposed within the inner cavity 24 of the channel, the channel body 21 can shield the airflow delivery assembly 26, providing protection against rain, snow, and dust, thus ensuring the service life of the airflow delivery assembly 26.

[0035] In other embodiments, reference is made to Figure 1dThe airflow delivery assembly 26 is disposed outside the inner cavity 24 of the channel. One end of the airflow delivery assembly 26, which communicates with the inner cavity 24, passes through the side wall 211 of the channel body 21 and is connected to the inner cavity 24. Specifically, when the airflow delivery assembly 26 is used to deliver gas from the atmosphere into the first cavity 111, the outlet end of the airflow delivery assembly 26 communicates with the inner cavity 24 through the side wall 211 of the channel body 21. When the airflow delivery assembly 26 is used to deliver gas from the first cavity 111 into the atmosphere, the inlet end of the airflow delivery assembly 26 communicates with the inner cavity 24 through the side wall 211 of the channel body 21. Disposing the airflow delivery assembly 26 outside the inner cavity 24 reduces the volume occupied by the airflow delivery assembly 26 within the inner cavity 24, ensuring the cross-sectional area for gas flow within the inner cavity 24 and allowing for smoother gas transmission within the inner cavity 24.

[0036] In some embodiments, refer to Figure 3 The airflow conveying assembly 26 includes an air supply device 261. The inlet end of the air supply device 261 is connected to the atmosphere, and the outlet end of the air supply device 261 is connected to the inner cavity 24 of the channel. The air supply device 261 is used to fill the first cavity 111 with air from the atmosphere. The air supply device 261 is, for example, a fan. By providing the air supply device 261, air can be supplied into the first cavity 111 to maintain the shape of the outer membrane 11. During the installation of the gas storage tank 10, the outer membrane 11 can be supported by air supply, which facilitates the installation of the internal structure within the first cavity 111. During the operation of the gas storage tank 10, the pressure of the gas storage tank 10 can be maintained stably, preventing problems such as rupture and damage to the gas storage tank 10.

[0037] In some embodiments, refer to Figure 3 The airflow conveying assembly 26 includes an exhaust device 262, the inlet of which is connected to the inner cavity 24 of the channel. The outlet of the exhaust device 262 is connected to the atmosphere. The exhaust device 262 is used to discharge the gas in the first cavity 111 to the atmosphere. By providing the exhaust device 262, the gas in the first cavity 111 can be discharged to the atmosphere. For example, when the pressure inside the first cavity 111 is too high, some gas can be discharged through the exhaust device 262 to reduce the pressure inside the first cavity 111, prevent the outer membrane 11 from rupturing, and ensure the safe operation of the gas storage tank.

[0038] In some embodiments, refer to Figure 1bThe channel 20 also includes a flexible connection structure 25, through which the outer membrane 11 and the first end 212 of the channel body 21 are connected. For example, a connection cavity 251 is formed within the flexible connection structure 25, which communicates with the first cavity 111. Specifically, the flexible connection 25 can, for example, be made of a gas-supported membrane structure material that is the same as or similar to that of the outer membrane 11, to form a flexible pipe-like structure between the outer membrane 11 and the channel body 21. Since the outer membrane 11 will float slightly with changes in pressure within the first cavity 111, using the flexible connection 25 to connect the channel body 21 and the outer membrane 11 can reduce the problem of leakage caused by tearing of the outer membrane 11 due to deformation when the channel body 21 is directly connected to the outer membrane 11. This improves the sealing and stability of the connection between the channel 20 and the outer membrane 11, ensuring safe and stable operation.

[0039] In some embodiments, the width of the channel cavity 24 is 2.5 to 6 meters, the length of the channel cavity 24 is 5 to 25 meters, and the height of the channel cavity 24 is greater than 5.0 meters. The length of the channel cavity 24 is... Figure 1d The distance L between the first end 212 and the second end 213 in the channel. The width of the inner cavity 24 is... Figure 1d The distance W shown is [not specified]. The height of the inner cavity 24 of the channel is [not specified]. Figure 1b The distance H from the top of the channel body 21 to the ground is shown. The design of these dimensional parameters allows the channel cavity 24 to fully accommodate various transport vehicles, facilitating the entry and exit of materials and personnel. The heights of the inner door 22 and outer door 23 are designed to correspond to the width and height of the channel cavity 24.

[0040] In other embodiments, the height of the inner door 22 and the outer door 23 is, for example, 2 to 8 meters, specifically 3 to 4 meters, and the width is 2 to 8 meters, specifically 3 to 4 meters. This size provides a large flow cross-sectional area when both the inner door 22 and the outer door 23 are open, allowing for rapid exhaust of gas from the first cavity 111 when the pressure inside the first cavity 111 is high. For example, if the exhaust port of the exhaust device 262 is rectangular, its length and width are 0.5 to 2 meters. Designing the dimensions of the inner door 22 and the outer door 23 to be much larger than the diameter of the exhaust device 262 allows for rapid pressure relief.

[0041] In some embodiments, refer to Figure 4The channel 20 also includes a pressure measuring device 27, which is used to acquire air pressure information within the first cavity 111. The airflow delivery assembly 26 is also used to operate according to the air pressure information acquired by the pressure measuring device 27 within the first cavity 111. The pressure measuring device 27 includes, for example, a pressure sensor, which can be an absolute pressure sensor for detecting the absolute pressure within the first cavity 111. In some embodiments, the pressure sensor can be a gauge pressure sensor for measuring the gauge pressure within the first cavity 111. Absolute pressure is the pressure relative to zero pressure, and gauge pressure is the portion of the absolute pressure exceeding the surrounding atmospheric pressure. In some embodiments, the pressure sensor can be a differential pressure sensor for measuring the relative pressure difference between the first cavity 111 and the external atmosphere. The pressure measuring device 27 can include any one or more of the absolute pressure sensor, gauge pressure sensor, and differential pressure sensor described above. By setting the pressure measuring device 27 as a pressure sensor, it can sense the pressure within the first cavity 111 and convert it into an output electrical signal to determine the pressure state within the first cavity 111. For example, the pressure sensor used in the pressure measuring device 27 can be classified according to the method by which pressure is converted into electrical quantity, such as strain gauge pressure sensor, resistive pressure sensor, capacitive pressure sensor, piezoresistive pressure sensor, piezoelectric pressure sensor, etc. A pressure sensor is a type of electrical pressure gauge. In addition, the pressure measuring device 27 can also be a liquid column pressure gauge, a mechanical pressure gauge, a piston pressure gauge, etc.

[0042] For example, when the pressure information obtained by the pressure measuring device 27 indicates that the pressure inside the first cavity 111 is greater than the first preset pressure, the airflow delivery component 26 discharges the gas inside the first cavity 111 to the atmosphere; or when the pressure information obtained by the pressure measuring device 27 indicates that the pressure inside the first cavity 111 is less than the second preset pressure (the first preset pressure is greater than the second preset pressure), the airflow delivery component 26 fills the first cavity 111 with air from the atmosphere to maintain the pressure inside the first cavity 111 within the preset pressure range.

[0043] Multiple pressure sensors can be installed at multiple locations corresponding to the first cavity 111. The pressure measuring device 27 acquires the air pressure information inside the first cavity 111, including the readings of the multiple pressure sensors. If the number of first sensors among the multiple pressure sensors is greater than a first preset number, the pressure inside the first cavity 111 can be considered to exceed the first preset pressure. Here, a first sensor is a sensor whose pressure reading is greater than the first preset pressure. For example, if the number of pressure sensors is i, the first preset number is j, and k pressure sensors out of the i pressure sensors have readings greater than or equal to the first preset pressure, then these k pressure sensors are designated as first sensors, and the number of first sensors is k. When k is greater than j, it can be determined that the pressure inside the first cavity 111 exceeds the first preset pressure.

[0044] If the number of second sensors among multiple pressure sensor readings is greater than a second preset number, the pressure inside the first cavity 111 can be considered lower than the second preset pressure. Here, the second sensor is the pressure sensor whose reading is less than the second preset pressure. The second preset number is y. For example, if z pressure sensors out of i pressure sensors have readings less than the second preset pressure, then these z pressure sensors are designated as second sensors, and the number of second sensors is z. When z is greater than or equal to y, the pressure inside the first cavity 111 can be considered lower than the second preset pressure.

[0045] In this embodiment, multiple pressure sensors can be used to more accurately determine the pressure status inside the first cavity 111.

[0046] In some embodiments, the inner door 22 and outer door 23 also operate based on the pressure information obtained by the pressure measuring device 27 within the first cavity 111. Specifically, when the pressure obtained by the pressure measuring device 27 within the first cavity 111 exceeds a third preset pressure (the third preset pressure is greater than the first preset pressure), both the inner door 22 and outer door 23 open, allowing the gas within the first cavity 111 to be quickly discharged to the atmosphere through the inner door 22, the inner cavity 24 of the channel, and the outer door 23, achieving a rapid pressure relief effect. When the pressure measuring device 27 includes multiple pressure sensors, when the number of third sensors exceeds a third preset number, it can be considered that the pressure within multiple first cavities 111 exceeds the third preset pressure. The third sensors are pressure sensors whose readings are greater than the third preset pressure. For example, if the third preset number is r, and s out of i pressure sensors have readings greater than the third preset pressure, then these s pressure sensors are recorded as third sensors, and the number of third sensors is s. When s is greater than or equal to r, it can be considered that the pressure within multiple first cavities 111 exceeds the third preset pressure.

[0047] In some embodiments, refer to Figure 5 Channel 20 also includes a control component 28, which is a controller that controls the electrical devices in channel 20, including but not limited to a central processing unit, a readable storage medium, a controller, a PLC control unit, etc.

[0048] In some embodiments, the control component 28 is disposed within the inner cavity 24 of the channel, and the channel body 21 can protect the control component 28 from rain, snow and dust to ensure safe operation.

[0049] In some embodiments, the control component 28 is electrically connected to the pneumatic conveying component 26. The control component 28 can control the start and stop of the pneumatic conveying component 26. For example, when the foregoing embodiment also includes a pressure measuring device 27, the control component 28 is electrically connected to the pressure measuring device 27 and the pneumatic conveying component 26. The pressure measuring device 27 acquires the air pressure information in the first cavity 111 and converts it into an electrical signal to the control component 28. The control component 28 controls the operation of the pneumatic conveying component 26 according to the air pressure information.

[0050] In some embodiments, the channel 20 may further include an inner door drive motor for driving the inner door 22 to open or close, and an outer door drive motor for driving the outer door 23 to open or close. The control component 28 is also electrically connected to the inner door drive motor and the outer door drive motor respectively, for controlling the opening or closing of the inner door 22 and the outer door 23.

[0051] One embodiment of the present invention provides a gas storage structure, including a gas storage tank 10 and a channel 20 provided in any of the preceding embodiments. The gas storage tank 10 has an outer membrane 11, and a first cavity 111 is formed within the outer membrane 11. The first end 212 of the channel body 21 is sealed and connected to the outer membrane 11. The gas storage structure provided in this embodiment realizes the gas storage function through the gas storage tank 10. Through the airflow conveying component 26 communicating with the inner cavity 24 of the channel, the gas in the first cavity 111 of the gas storage tank 10 can be transferred to the atmosphere through the inner cavity 24 of the channel. The airflow conveying component 26 is not directly connected to the outer membrane 11, which can reduce the number of openings on the outer membrane 11 and avoid the problem of gas leakage due to rupture at the openings of the outer membrane 11. This makes the gas storage tank 10 operate more safely and stably. That is, the gas storage structure provided in this embodiment reduces the possibility of gas leakage problems compared with traditional gas storage tanks, and is safer and more reliable.

[0052] In some embodiments, refer to Figure 1a and Figure 1bIn the gas storage structure, the gas storage tank 10 also includes an inner membrane 12 disposed within a first cavity 111. The first cavity 111 is divided by the inner membrane 12 into a sandwich cavity 13 located between the inner membrane 12 and an outer membrane 13, and a storage cavity 14 located within the inner membrane 12. Specifically, the gas storage tank 10 stores gases such as methane or carbon dioxide through the storage cavity 14 within the inner membrane 12. Gas is filled into the sandwich cavity 13 to maintain the shape of the gas storage tank 10. The airflow conveying assembly 26 is specifically used for airflow transmission between the gas in the sandwich cavity 13 and the atmosphere. For example, when the gas stored in the storage cavity 14 decreases, the inner membrane 12 collapses, the volume in the sandwich cavity 13 increases, and the pressure decreases. It is necessary to fill the sandwich cavity 13 with gas through the airflow conveying assembly 26 to maintain the shape of the outer membrane 11. When the amount of gas stored in the storage cavity 14 increases, the inner membrane 12 gradually expands, the volume in the interlayer cavity 13 decreases, and the pressure increases. It is necessary to discharge the gas in the interlayer cavity 13 through the airflow conveying component 26 to maintain the pressure balance in the interlayer cavity 13 and prevent the outer membrane 11 from rupturing due to excessive pressure in the interlayer cavity 13.

[0053] In traditional gas storage structures, when the gas level in the storage space decreases, the inner membrane may collapse, potentially causing blockage of the ventilation system, equipment malfunctions, increased pressure in the interlayer cavity that cannot be released, and even membrane rupture, thus affecting the operation and safety of the gas storage facility. In this embodiment, however, the airflow delivery component 26 is connected to the interlayer cavity 13 via the channel cavity 24. When the inner membrane 12 collapses, it will not block the airflow delivery component 26, reducing the possibility of malfunction and ensuring its safe operation.

[0054] In some embodiments, as described in the foregoing embodiment, the first end 212 is provided with an inner door 22. When the inner door 22 is open, the interlayer cavity 13 communicates with the channel cavity 24. When the inner door 22 is closed, the interlayer cavity 13 is isolated from 24. When both the inner door 22 and the outer door 23 are open, the gas in the interlayer cavity 13 can be discharged to the atmosphere through the channel cavity 24. This allows for the rapid discharge of gas from the interlayer cavity 13 when the exhaust function of the airflow conveying assembly 26 fails or when the pressure in the interlayer cavity 13 rises rapidly due to other reasons.

[0055] In some embodiments, when the channel 20 further includes a pressure measuring device 27, the pressure measuring device 27 is specifically used to measure the pressure information in the interlayer cavity 13, and the airflow delivery assembly 26 can specifically operate according to the pressure information of the interlayer cavity 13 measured by the measuring device 27.

[0056] The working principle of the gas storage structure and the channel 20 applied to the gas storage tank provided in some specific embodiments of the present invention is as follows:

[0057] (1) During the installation of the gas storage facility, the passage 20 can be used as a transportation passage and personnel passage. After the outer membrane 11 and the passage 20 are constructed, a first cavity 111 is formed inside the outer membrane 11, and a passage inner cavity 24 is formed inside the passage body 21. Air can be pumped into the first cavity 111 through the passage inner cavity 24 via the airflow conveying component 26, so that the outer membrane 11 is supported and formed, creating an installation space for the structure inside the outer membrane 11. Installation materials and installation auxiliary equipment can be transported to the first cavity 111 via the passage inner cavity 24 using a transport vehicle. Relevant personnel can also enter the first cavity 111 through the passage inner cavity 24. Specifically, during the air pumping stage of the first cavity 111, the outer door 23 is closed, the inner door 22 is opened, and the airflow conveying component 26 pumps air from the atmosphere into the first cavity 111 through the passage inner cavity 24, so that the outer membrane 11 is supported and formed. During the material transport and installation phase, first close the inner door 22 and open the outer door 23. The transport vehicle passes through the outer door 23 and enters the inner cavity 24 from outside the outer door 23. After the transport vehicle has completely entered the inner cavity 24, close the outer door 23 and open the inner door 22. The transport vehicle passes through the inner door 22 and enters the first cavity 111 from the inner cavity 24. After unloading the installation materials, the transport vehicle passes through the inner door 22 and enters the inner cavity 24 from the first cavity 111. After completely entering the inner cavity 24, close the inner door 22 and open the outer door 23. The transport vehicle passes through the outer door 23 and leaves the inner cavity 24. After the transport vehicle has completely left the inner cavity 24, close the outer door 23 and open the inner door 22. When it is necessary to inflate the first cavity 111, the air supply device 261 of the airflow delivery assembly 26 can continue to inflate the first cavity 111 through the inner cavity 24. The inner membrane 12 can then be installed using the installation materials. With the establishment of channel 20, during the installation of gas storage 10, there is no need to wait for all materials to arrive. The outer membrane 11 and channel 20 can be built first. After the outer membrane 11 and channel 20 are built, the materials and equipment required for the structure inside the outer membrane 11 can be transported to the first cavity 111 for installation via channel 20. On the one hand, the outer membrane 11 has the effect of shielding against rain, snow and dust, which can reduce the occurrence of construction delays due to bad weather. On the other hand, even if the structure inside the outer membrane 11 arrives late, the outer membrane 11 can be installed first, which can avoid the waste of construction time caused by inconsistent material arrival times.

[0058] (2) During the operation of the gas storage tank, channel 20 can be used as a pressure relief channel. After the inner membrane 12 is installed, the first cavity 111 in the outer membrane 11 is divided by the inner membrane 12 into an interlayer cavity 13 located between the inner membrane 12 and the outer membrane 11, and a storage cavity 14 located in the inner membrane 12. During the operation of the gas storage tank 10, the air supply device 261 of the air supply assembly 26 remains open to fill the interlayer cavity 13 with air to maintain the shape of the outer membrane 11. For example, when the gas stored in the storage cavity 14 decreases, the inner membrane 12 collapses, the volume in the interlayer cavity 13 increases, and the pressure decreases. When the pressure in the interlayer cavity 13 is lower than the second preset pressure, it is necessary to continue to replenish the gas in the interlayer cavity 13 through the air supply device 261 of the air supply assembly 26 to maintain the shape of the outer membrane 11. As the amount of gas stored in the storage cavity 14 increases, the inner membrane 12 gradually expands, reducing the volume of the interlayer cavity 13 and increasing the pressure. When the pressure in the interlayer cavity 13 exceeds the first preset pressure, the gas in the interlayer cavity 13 needs to be discharged through the exhaust device 261 in the airflow conveying assembly 26 to maintain the pressure balance within the interlayer cavity 13 and prevent the outer membrane 11 from rupturing due to excessive pressure. If the exhaust device 261 malfunctions or is unable to quickly discharge the gas from the interlayer cavity 13, causing the pressure in the interlayer cavity 13 to continue rising to exceed the third pressure, the inner door 22 and the outer door 23 can be opened. The gas in the interlayer cavity 13 passes through the inner door 22 into the channel cavity 24 and is then discharged to the atmosphere through the outer door 33. This allows for rapid depressurization of the interlayer cavity 13, preventing safety issues such as the rupture of the outer membrane 11.

[0059] (3) During the operation of the gas storage facility, the passage 20 can be used as a maintenance passage. During the operation of the gas storage facility 10, the outer door 23 is kept closed and the inner door 22 is kept open. The air supply device 261 of the airflow conveying component 26 inflates the interlayer cavity 13 through the inner cavity 24 of the passage to maintain the shape of the outer membrane 11. When maintenance personnel need to enter the interlayer cavity 13 from outside the outer door 23, the inner door 22 is closed first and the outer door 23 is opened. The maintenance personnel enter the inner cavity 24 of the passage through the outer door 23. After the maintenance personnel enter the inner cavity 24 of the passage, the outer door 23 is closed and the inner door 22 is opened. The maintenance personnel enter the interlayer cavity 13 from the inner cavity 24 of the passage through the inner door 22. During the entry process, the interlayer cavity 13 will not be connected to the atmosphere, which can prevent the gas in the interlayer cavity 13 from leaking out. After the maintenance is completed, the maintenance personnel enter the inner cavity 24 of the passage through the inner door 22 from the interlayer cavity 13. After maintenance personnel enter the inner cavity 24 of the passage, they close the inner door 22 and open the outer door 23. The maintenance personnel then evacuate from the inner cavity 24 through the outer door 23. During the evacuation process, the interlayer cavity 13 is not connected to the atmosphere, which prevents gas leakage from the interlayer cavity 13 and ensures stable air pressure in the interlayer cavity 13.

[0060] As described above, the channel provided by the embodiments of the present invention for use in gas storage can be used as an installation channel, a pressure relief channel, a maintenance channel and other application scenarios. Furthermore, the airflow conveying component 26 is connected to the outer membrane 11 through the channel body 21, which can reduce the number of openings in the outer membrane 11 and prevent gas leakage at the openings.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A channel for use in a gas storage facility, the gas storage facility having an outer membrane; a first cavity formed within the outer membrane; characterized in that, The channel includes: The channel body has a first end and a second end opposite to each other, and a sidewall located between the first end and the second end; the first end is sealed to the outer membrane; the first end is provided with an inner door, and the second end is provided with an outer door, the sidewall, the inner door, and the outer door together enclose to form a channel cavity; when the inner door is open, the channel cavity is in communication with the first cavity, and when the inner door is closed, the channel cavity is isolated from the first cavity; when the outer door is open, the channel cavity is in communication with the atmosphere, and when the outer door is closed, the channel cavity is isolated from the atmosphere. An airflow conveying assembly has one end connected to the inner cavity of the channel and the other end connected to the atmosphere; the airflow conveying assembly is used for airflow transmission between the gas in the first cavity and the atmosphere; The airflow delivery assembly includes an air supply device, the inlet end of which is connected to the atmosphere, and the outlet end of which is connected to the inner cavity of the channel. The air supply device is used to fill the first cavity with air from the atmosphere through the inner cavity of the channel. A pressure measuring device is used to acquire air pressure information in the first cavity; the airflow delivery assembly is also used to operate according to the air pressure information acquired by the pressure measuring device in the first cavity. When the pressure information obtained by the pressure measuring device is greater than the first preset pressure, the airflow conveying component discharges the gas in the first cavity to the atmosphere. The pressure information obtained by the pressure measuring device is that when the pressure in the first cavity is less than the second preset pressure, the airflow conveying component fills the first cavity with air from the atmosphere to maintain the pressure in the first cavity within the preset pressure range, where the first preset pressure is greater than the second preset pressure. When the pressure information obtained by the pressure measuring device is greater than the third preset pressure, both the inner door and the outer door are opened, allowing the gas in the first cavity to be discharged to the atmosphere through the inner door, the inner cavity of the channel, and the outer door; the third preset pressure is greater than the first preset pressure.

2. The access passage for a gas storage reservoir of claim 1, wherein, The airflow delivery assembly is disposed inside the inner cavity of the channel, with one end of the airflow delivery assembly communicating with the atmosphere through the side wall of the channel body; or, the airflow delivery assembly is disposed outside the inner cavity of the channel, with one end of the airflow delivery assembly communicating with the inner cavity of the channel through the side wall of the channel body.

3. The access passage for a gas storage reservoir of claim 2, wherein, The airflow conveying assembly includes an exhaust device, the inlet end of which is connected to the inner cavity of the channel, and the outlet end of which is connected to the atmosphere. The exhaust device is used to discharge the gas in the first cavity to the atmosphere.

4. The access passage for gas storage reservoirs of claim 1, wherein It also includes a flexible connection structure, through which the outer membrane and the first end of the channel body are connected.

5. The passage for gas storage as claimed in any one of claims 1 to 4, wherein It also includes a control component disposed within the inner cavity of the channel and electrically connected to the airflow delivery component, the inner door, and the outer door.

6. A gas storage structure, characterized by, It includes a gas storage tank and a channel as described in any one of claims 1 to 5; the gas storage tank has an outer membrane, and a first cavity is formed inside the outer membrane; the first end of the channel is sealed and connected to the outer membrane.

7. The gas storage structure of claim 6, wherein, The gas storage tank also includes an inner membrane disposed within the first cavity, the first cavity being divided by the inner membrane into a sandwich cavity located between the inner membrane and an outer membrane, and a storage cavity located within the inner membrane; When the pressure information obtained by the pressure measuring device is greater than the first preset pressure, the airflow conveying assembly discharges the gas in the interlayer cavity to the atmosphere; when the pressure information obtained by the pressure measuring device is less than the second preset pressure, air from the atmosphere is introduced into the interlayer cavity; when the pressure information obtained by the pressure measuring device is greater than the third preset pressure, both the inner door and the outer door are opened, allowing the gas in the interlayer cavity to be discharged to the atmosphere through the inner door, the inner cavity of the channel, and the outer door.

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