Gas film gas storage device of carbon dioxide energy storage system

Abstract

The utility model relates to the field of gas films, and discloses a gas film gas storage device of a carbon dioxide energy storage system, which comprises an inner film, an outer film and a gas storage layer, an interlayer cavity used for containing air is formed between the outer film and the inner film; the carbon dioxide inflation and deflation pipeline is communicated with the inner cavity through an inflation and deflation port in the inner film, carbon dioxide can be introduced into the inner cavity through the carbon dioxide inflation and deflation pipeline, and the carbon dioxide in the inner cavity can be discharged from the carbon dioxide inflation and deflation pipeline; the connecting structure is used for communicating the carbon dioxide inflation and deflation pipeline with the inflation and deflation port of the inner membrane; and an anti-blocking device is arranged on the inner wall of the inflation and deflation port of the inner film. In the application, when the carbon dioxide in the inner cavity is discharged outwards, the pressure in the inner cavity is reduced, and the difference between the internal pressure and the external pressure also cannot enable the inner film to cover and block the inflation and deflation port, so that the inflation and deflation work of the inflation and deflation port is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of air membranes, in particular to an air membrane gas storage device of a carbon dioxide energy storage system. Background Art

[0002] The air membrane gas storage device of the carbon dioxide energy storage system is often used in the carbon dioxide energy storage system. Its function is to store carbon dioxide. Through the gas-liquid phase change of the stored carbon dioxide, energy storage can be achieved. The existing carbon dioxide gas storage device is usually set as a double-layer structure. The storage cavity formed by the inner membrane is used to store carbon dioxide gas. An interlayer cavity is formed between the inner membrane and the outer membrane. The inner membrane can be protected by transporting air into the interlayer cavity. However, in the gas storage structure in the prior art, when carbon dioxide is discharged from the inner membrane, the pressure inside the inner membrane decreases. Due to the pressure difference between the inside and outside of the inner membrane, it is easy for the inner membrane to adhere to the position of the inner membrane charging and discharging port, thereby blocking the charging and discharging port, which is not conducive to the subsequent charging and discharging operation of the inner membrane, and brings great inconvenience. Summary of the invention

[0003] The utility model aims to provide an air membrane gas storage device for a carbon dioxide energy storage system, aiming to solve the problem in the prior art that the gas charging and discharging ports of the inner membrane are easily blocked.

[0004] The present application provides a gas membrane gas storage device of a carbon dioxide energy storage system, comprising:

[0005] an inner membrane, wherein an inner cavity for accommodating carbon dioxide is formed in the inner membrane;

[0006] An outer membrane, wherein an interlayer cavity for accommodating air is formed between the outer membrane and the inner membrane;

[0007] A carbon dioxide charging and discharging pipeline, wherein the carbon dioxide charging and discharging pipeline is connected to the inner cavity through the charging and discharging ports on the inner membrane, and carbon dioxide can be introduced into the inner cavity through the carbon dioxide charging and discharging pipeline, and carbon dioxide in the inner cavity can also be discharged from the carbon dioxide charging and discharging pipeline;

[0008] A connecting structure, the connecting structure is used to connect the carbon dioxide filling and discharging pipeline with the filling and discharging port of the inner membrane;

[0009] The inner wall of the inner membrane at the location of the gas charging and discharging port is provided with an anti-blocking device, and the anti-blocking device is used to prevent the inner membrane from blocking the gas charging and discharging port when discharging carbon dioxide.

[0010] Further, the connection structure includes a lower flange, an upper flange, a lower sealing gasket, and an upper sealing gasket; the lower flange is fixedly connected to the carbon dioxide charging and discharging pipeline, a lower sealing gasket is arranged on the outer edge of the upper part of the lower flange, an upper sealing gasket is arranged on the outer edge of the bottom of the upper flange, an inner membrane at the outer edge of the charging and discharging port position is tightly pressed between the upper sealing gasket and the lower sealing gasket, the middle of the lower flange is communicated with the carbon dioxide charging and discharging pipeline, the middle of the lower flange is communicated with the middle of the upper flange, and the middle of the upper flange is communicated with the inner cavity through the charging and discharging port to realize the charging and discharging of the inner cavity.

[0011] Further, the anti-blocking device can allow gas to pass through to realize the communication between the middle of the upper flange and the inner cavity.

[0012] Further, one end of the carbon dioxide charging and discharging pipeline is arranged underground.

[0013] Further, a first base member is arranged on the ground, one end of the first base member is hermetically fixed to the ground, and the other end of the first base member is hermetically fixedly connected to the outer membrane.

[0014] Further, a second base member is arranged on the ground, one end of the second base member is hermetically fixed to the ground, and the other end of the second base member is hermetically fixedly connected to the inner membrane.

[0015] Further, the outer membrane is connected with a gas transmission pipeline, and the gas transmission pipeline is connected with a gas transmission device. Through the gas transmission device and the gas transmission pipeline, the pressure value of the air in the interlayer cavity can be adjusted.

[0016] Further, a valve is arranged on the carbon dioxide charging and discharging pipeline, and the valve is used to control the input or output of carbon dioxide gas.

[0017] Compared with the prior art, the gas film gas storage device of the carbon dioxide energy storage system provided by this application is provided with an anti-blocking device on the inner wall at the charging and discharging port position of the inner membrane. In this way, when the carbon dioxide in the inner cavity is discharged outwards, the pressure in the inner cavity decreases, and the internal and external pressure difference cannot make the inner membrane stick to block the charging and discharging port, which will not affect the charging and discharging work of the charging and discharging port. The gas storage device provided by this application has a stable structure and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a gas film gas storage device of a carbon dioxide energy storage system provided by an embodiment of the present invention;

[0019] Figure 2 is Figure 1 an enlarged schematic view of part A of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more unless otherwise specifically defined.

[0023] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0025] The implementation of the present utility model will be described in detail below in conjunction with specific embodiments.

[0026] Referring to Figure 1-2 , the gas film gas storage device of the carbon dioxide energy storage system includes:

[0027] The inner membrane 3, an inner cavity for accommodating carbon dioxide is formed inside the inner membrane 3;

[0028] The outer membrane 4, a sandwich cavity 5 for accommodating air is formed between the outer membrane 4 and the inner membrane 3;

[0029] The carbon dioxide charging and discharging pipeline 6, the carbon dioxide charging and discharging pipeline 6 is communicated with the inner cavity through the charging and discharging port on the inner membrane 3. Through the carbon dioxide charging and discharging pipeline 6, carbon dioxide can be introduced into the inner cavity, and the carbon dioxide in the inner cavity can also be discharged from the carbon dioxide charging and discharging pipeline 6;

[0030] The connecting structure is used to connect the carbon dioxide charging and discharging pipeline 6 with the charging and discharging port of the inner membrane 3;

[0031] A anti-blocking device 7 is arranged on the inner wall at the position of the charging and discharging port of the inner membrane 3, and the anti-blocking device 7 is used to prevent the inner membrane 3 from blocking the charging and discharging port when discharging carbon dioxide.

[0032] For the gas film gas storage device of the carbon dioxide energy storage system provided by the present application, by arranging the anti-blocking device 7 on the inner wall at the position of the charging and discharging port of the inner membrane 3, in this way, when the carbon dioxide in the inner cavity is discharged outward, the pressure in the inner cavity decreases, and the internal and external pressure difference cannot make the inner membrane 3 stick to block the charging and discharging port, which will not affect the charging and discharging work of the charging and discharging port. The gas storage device provided by the present application has a stable structure and good use effect.

[0033] Furthermore, the connecting structure includes a lower flange 8, an upper flange 9, a lower sealing gasket 10 and an upper sealing gasket 11; the lower flange 8 is fixedly connected with the carbon dioxide charging and discharging pipeline 6, a lower sealing gasket 10 is arranged on the outer edge of the upper part of the lower flange 8, an upper sealing gasket 11 is arranged on the outer edge of the bottom of the upper flange 9, the inner membrane 3 at the outer edge of the charging and discharging port is tightly pressed between the upper sealing gasket 11 and the lower sealing gasket 10, the middle of the lower flange 8 is communicated with the carbon dioxide charging and discharging pipeline 6, the middle of the lower flange 8 and the middle of the upper flange 9 are communicated, and the middle of the upper flange 9 is communicated with the inner cavity through the charging and discharging port to realize the charging and discharging of the inner cavity.

[0034] Further, the anti-blocking device 7 can allow gas to pass through. For example, the anti-blocking device is provided with ventilation holes to connect the middle and the inner cavity of the upper flange 9. Preferably, the ventilation holes are arranged at both sides of the anti-blocking device 7. It should be noted that the anti-blocking device has two functions. One is to support when carbon dioxide is discharged from the inner cavity to prevent the inner membrane 3 from adhering to and blocking the gas inlet / outlet. The other is that the anti-blocking device can allow carbon dioxide gas to pass through, so as not to affect the filling of carbon dioxide into the inner cavity or the discharge of carbon dioxide from the inner cavity. The shape of the anti-blocking device can be a cap-shaped body with ventilation holes, or it can also be a support bracket that can play a supporting role and allow gas to pass through. The specific structural shape of the anti-blocking device is not limited in this application.

[0035] Further, one end of the carbon dioxide gas inlet / outlet pipe 6 is arranged underground.

[0036] Further, a first base member 1 is provided on the ground. One end of the first base member 1 is hermetically fixed to the ground, and the other end of the first base member 1 is hermetically and fixedly connected to the outer membrane 4.

[0037] Further, a second base member 2 is provided on the ground. One end of the second base member 2 is hermetically fixed to the ground, and the other end of the second base member 2 is hermetically and fixedly connected to the inner membrane 4.

[0038] Further, the outer membrane 4 is connected with a gas transmission pipe, and the gas transmission pipe is connected with a gas transmission device. Through the gas transmission device and the gas transmission pipe, the pressure value of the air in the interlayer cavity 5 can be adjusted.

[0039] Further, a valve is provided on the carbon dioxide gas inlet / outlet pipe 6, and the valve is used to control the input or output of carbon dioxide gas.

[0040] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0041] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A gas membrane gas storage device for a carbon dioxide energy storage system, characterized in that: include: an inner membrane, wherein an inner cavity for accommodating carbon dioxide is formed in the inner membrane; An outer membrane, wherein an interlayer cavity for accommodating air is formed between the outer membrane and the inner membrane; A carbon dioxide charging and discharging pipeline, wherein the carbon dioxide charging and discharging pipeline is connected to the inner cavity through the charging and discharging ports on the inner membrane, and carbon dioxide can be introduced into the inner cavity through the carbon dioxide charging and discharging pipeline, and carbon dioxide in the inner cavity can also be discharged from the carbon dioxide charging and discharging pipeline; A connecting structure is used to connect the carbon dioxide filling and discharging pipeline with the filling and discharging port of the inner membrane.

2. The air membrane gas storage device of the carbon dioxide energy storage system according to claim 1, characterized in that: The inner wall of the inner membrane at the location of the gas charging and discharging port is provided with an anti-blocking device, and the anti-blocking device is used to prevent the inner membrane from blocking the gas charging and discharging port when discharging carbon dioxide.

3. The air membrane gas storage device of the carbon dioxide energy storage system according to claim 2 is characterized in that: The connection structure includes a lower flange, an upper flange, a lower sealing pad and an upper sealing pad; the lower flange is fixedly connected to the carbon dioxide filling and discharge pipeline, the upper outer edge of the lower flange is provided with a lower sealing pad, the outer edge of the bottom of the upper flange is provided with an upper sealing pad, the inner membrane of the outer edge of the filling and discharge port position is tightly pressed between the upper sealing pad and the lower sealing pad, the middle of the lower flange is connected to the carbon dioxide filling and discharge pipeline, the middle of the lower flange is connected to the middle of the upper flange, and the middle of the upper flange is connected to the inner cavity through the filling and discharge port to realize the filling and discharge of the inner cavity.

4. The air membrane gas storage device of the carbon dioxide energy storage system according to claim 3 is characterized in that: The anti-blocking device can allow gas to pass through, so as to achieve communication between the middle of the upper flange and the inner cavity.

5. The air membrane gas storage device of the carbon dioxide energy storage system according to claim 4, characterized in that: One end of the carbon dioxide filling and discharging pipeline is arranged underground.

6. The air membrane gas storage device of the carbon dioxide energy storage system according to claim 5, characterized in that: A first basic component is arranged on the ground, one end of the first basic component is sealed and fixed to the ground, and the other end of the first basic component is sealed and fixedly connected to the outer membrane.

7. The air membrane gas storage device of the carbon dioxide energy storage system according to claim 6, characterized in that: A second base member is arranged on the ground, one end of the second base member is sealed and fixed to the ground, and the other end of the second base member is sealed and fixedly connected to the inner membrane.

8. The air membrane gas storage device of the carbon dioxide energy storage system according to claim 7, characterized in that: The outer membrane is connected to a gas pipeline, and the gas pipeline is connected to a gas delivery device. The pressure value of the air in the interlayer cavity can be adjusted through the gas delivery device and the gas pipeline.

9. The air membrane gas storage device of the carbon dioxide energy storage system according to claim 8, characterized in that: The carbon dioxide filling and discharging pipeline is provided with a valve, and the valve is used to control the input or output of carbon dioxide gas.

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