A compressed air energy storage gas storage and its gas charging and discharging pipeline pier device

Abstract

The application discloses a compressed air energy storage gas storage and a gas charging and discharging pipeline support device thereof, and belongs to the technical field of compressed air energy storage, which can solve the problems that the traditional concrete support is easy to crack and fall off under strong vibration, the supporting effect is obviously weakened under the cyclic pressurization and unloading effect, and the overall gas storage sealing structure is not conducive. The device comprises: a flexible cushion layer arranged on a lining layer at the bottom of the gas storage, and the bottom surface of the flexible cushion layer is matched with the surface arc of the lining layer; a concrete prism is arranged on the flexible cushion layer, and the bottom surface of the concrete prism is consistent in size with the top surface of the flexible cushion layer; the top surface of the concrete prism is smaller in size than the bottom surface; a gas charging and discharging pipeline is placed in the middle of the top surface of the concrete prism; and a flexible covering body is wrapped on the outer wall of the gas charging and discharging pipeline. The application is used for supporting the gas charging and discharging pipeline in the gas storage.

Description

Technical Field

[0001] This invention relates to a compressed gas energy storage facility and its filling and releasing pipeline support device, belonging to the field of compressed gas energy storage technology. Background Technology

[0002] Compressed air energy storage technology is considered a highly promising large-scale energy storage technology due to its large storage capacity, long lifespan, high efficiency, and safety and reliability. Because compressed air has a high pressure, generally above 10 MPa, the inflation process mainly involves an air compressor pressurizing the gas storage tank through inflation and deflation pipelines. During inflation and deflation, the pipelines vibrate strongly and span a large area, requiring the fabrication of supports within the gas storage tank to reinforce them. However, traditional concrete supports are prone to cracking and falling off under strong vibrations, and their supporting effect is significantly weakened under cyclic pressurization and unloading, which is also detrimental to the overall sealing structure of the gas storage tank. Summary of the Invention

[0003] This invention provides a compressed air energy storage gas storage facility and its filling and releasing pipeline support device, which can solve the problems of traditional concrete supports being prone to cracking and falling off under strong vibration, the support effect being significantly weakened under cyclic pressurization and unloading, and being detrimental to the overall sealing structure of the gas storage facility.

[0004] On one hand, the present invention provides a support device for the filling and releasing pipeline of a compressed air energy storage gas storage facility, the device comprising:

[0005] A flexible cushion layer is installed on the lining layer at the bottom of the gas storage tank, and its bottom surface is adapted to the surface curvature of the lining layer.

[0006] A concrete frustum is disposed on the flexible pad, and its bottom surface has the same dimensions as the top surface of the flexible pad; the top surface dimension of the concrete frustum is smaller than its bottom surface dimension; the inflation / deflation pipe is placed in the middle of the top surface of the concrete frustum.

[0007] A flexible covering is applied to the outer wall of the inflation / deflation pipe.

[0008] Optionally, the flexible pad is bonded to the lining layer.

[0009] Optionally, the slope of the flexible pad layer is consistent with that of the concrete truncated pyramid, and both are 0.5 to 0.75.

[0010] Optionally, the height of the flexible pad is 5 to 8 cm.

[0011] Optionally, the top surface width of the concrete frustum is 10-20 cm.

[0012] Optionally, the material of the flexible pad and / or the flexible covering is any one of flexible concrete, rubber, acrylate and silicone.

[0013] On the other hand, embodiments of the present invention provide a compressed gas energy storage gas storage facility, comprising:

[0014] Lining layer;

[0015] A support device is disposed at the bottom of the lining layer, and the support device is any of the devices described above.

[0016] A sealing layer is provided on the surface of the lining layer and the support device.

[0017] Optionally, the sealing layer thickness at the contact points between the flexible pad of the support device and the lining layer, and at the contact points between the flexible covering body and the concrete truncated pyramid, is greater than the sealing layer thickness at other locations.

[0018] In another aspect, embodiments of the present invention provide a compressed gas energy storage facility, comprising:

[0019] Lining layer;

[0020] A first sealing layer covers the inner surface of the lining layer;

[0021] A support device is disposed at the bottom of the first sealing layer, and its bottom surface is adapted to the surface curvature of the first sealing layer. The support device is any of the devices described above.

[0022] A second sealing layer covers the surface of the support assembly.

[0023] Optionally, the thickness of the second sealing layer at the contact points between the flexible pad of the support device and the first sealing layer, and at the contact points between the flexible covering body and the concrete truncated pyramid, is greater than the thickness of the second sealing layer at other locations.

[0024] The beneficial effects that this invention can produce include:

[0025] The gas filling / deflating pipeline support device provided by this invention utilizes a flexible pad to achieve bottom vibration damping, a concrete truncated pyramid to achieve strong intermediate support, and a flexible covering at the top to achieve fixed vibration damping for the gas filling / deflating pipeline. Compared with traditional concrete support structures, the support device of this invention has a simple structure, good vibration damping effect, and is not prone to cracking and falling off under strong vibration. Furthermore, the flexible pad material has strong sealing properties, thereby enhancing the local sealing of the concrete lining. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the gas filling and releasing pipeline support device provided in an embodiment of the present invention;

[0027] Figure 2This is a cross-sectional schematic diagram of the gas filling and discharging pipeline support device provided in an embodiment of the present invention;

[0028] Figure 3 This is a longitudinal section diagram of the gas filling and releasing pipeline support device provided in an embodiment of the present invention.

[0029] List of components and reference numerals:

[0030] 1. Lining layer; 2. Sealing layer; 3. Support device; 31. Flexible padding layer; 32. Concrete truncated cone; 33. Flexible covering body; 4. Inflation / depression pipeline. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the embodiments, but the present invention is not limited to these embodiments.

[0032] This invention provides a support device for the filling and releasing pipeline of a compressed air energy storage gas storage facility, such as... Figures 1 to 3 As shown, the device includes:

[0033] A flexible pad 31 is installed on the lining layer 1 at the bottom of the gas storage tank, and its bottom surface is adapted to the surface curvature of the lining layer 1. In practical applications, the flexible pad 31 can be bonded to the lining layer 1.

[0034] The material of the flexible padding layer 31 can be any one of flexible concrete, rubber, acrylate and silicone.

[0035] Specifically, before constructing the sealing layer 2 of the gas storage facility, a fan-shaped flexible pad 31 with a height h1 of 5-8 cm is first fabricated on the concrete lining layer 1. The bottom of the flexible pad 31 is adapted to the curvature of the concrete lining layer 1, and the slope of the flexible pad 31 is m, which can be 0.5-0.75. The top surface of the flexible pad 31 is horizontal. After the construction of the flexible pad 31 is completed, it is ensured that the bottom surface of the flexible pad 31 is in close contact with the concrete surface of the lining layer 1.

[0036] In another embodiment, the flexible padding layer 31 can also be constructed after the sealing layer 2 is constructed. Specifically, a flexible padding layer 31 is installed on the sealing layer 2 at the bottom of the gas storage tank, and the bottom surface of the flexible padding layer 31 is adapted to the surface curvature of the sealing layer 2. The flexible padding layer 31 can be bonded to the sealing layer 2.

[0037] The flexible pad 31 in this invention has the characteristics of easy formwork erection and convenient construction. Compared with traditional concrete supports, the flexible pad 31 at the bottom of this invention has the effect of shock absorption, and the material of the flexible pad 31 itself has strong sealing properties, thus enhancing the local sealing of the concrete lining layer 1.

[0038] A concrete truncated pyramid 32 is set on the flexible pad 31, and its bottom surface has the same dimensions as the top surface of the flexible pad 31; the top surface dimension of the concrete truncated pyramid 32 is smaller than its bottom surface dimension; the inflation / deflation pipe 4 is placed in the middle of the top surface of the concrete truncated pyramid 32.

[0039] Based on the completed flexible cushion layer 31, a square frustum structure, namely a concrete frustum 32, is poured using the top surface of the flexible cushion layer 31 as a foundation. The frustum has a slope of m, a bottom side length of N, and a top side length of n. The top side length n (also known as the top width) of the concrete frustum 32 is 10–20 cm. The slope of the concrete frustum 32 is consistent with the slope of the flexible cushion layer 31, and its slope m is 0.5–0.75.

[0040] In this invention, the central concrete truncated pyramid 32, on the basis of the bottom flexible pad 31 resisting vibration, can provide strong support for the inflation / deflation pipe 4.

[0041] The flexible covering 33 covers the outer wall of the inflation / deflation pipe 4.

[0042] In practical applications, the flexible covering 33 can be made of any of the following materials: flexible concrete, rubber, acrylate, and silicone. The material of the flexible covering 33 can be the same as or different from the material of the flexible padding layer 31; this embodiment of the invention does not limit this.

[0043] refer to Figures 1 to 3 As shown, a flexible covering 33 with a height of h2 is made based on the top surface of the concrete frustum 32. The inflation / deflation pipe 4 passes through the flexible covering 33, and the center line of the pipe is at a height H from the bottom surface of the concrete lining layer 1. The flexible covering 33 can be a cylinder or cuboid or other shape that can cover the inflation / deflation pipe 4. This embodiment of the invention does not limit this.

[0044] By using the flexible covering 33 on the top of the concrete frustum 32 to wrap the inflation / deflation pipe 4, the vibration resistance of the inflation / deflation pipe 4 can be further enhanced.

[0045] Another embodiment of the present invention provides a compressed gas energy storage facility, comprising:

[0046] Lining layer 1;

[0047] Support device 3 is installed at the bottom of lining layer 1, and support device 3 is any of the devices described above.

[0048] Sealing layer 2 is applied to the surfaces of lining layer 1 and support device 3.

[0049] Furthermore, the thickness of the sealing layer 2 at the contact points between the flexible pad 31 and the lining layer 1 of the support device 3, and at the contact points between the flexible covering body 33 and the concrete truncated pyramid 32, is greater than the thickness of the sealing layer 2 at other locations.

[0050] After the entire support device 3 is completed, a sealing material coating can be used to seal the surface of the lining layer 1 and the support device 3 as a whole. Thickening treatment can be carried out in local locations such as the contact area between the flexible pad 31 and the lining layer 1, and the contact area between the flexible covering 33 and the concrete truncated pyramid 32.

[0051] The sealing material coating provides an overall seal for the concrete lining layer 1 and the support device 3, thereby improving the overall sealing performance of the gas storage facility.

[0052] Another embodiment of the present invention provides a compressed gas energy storage facility, comprising:

[0053] Lining layer 1;

[0054] The first sealing layer covers the inner surface of the lining layer 1;

[0055] The support device 3 is disposed at the bottom of the first sealing layer, and its bottom surface is adapted to the surface curvature of the first sealing layer. The support device 3 is any of the devices described above.

[0056] The second sealing layer covers the surface of the support device 3.

[0057] Furthermore, the thickness of the second sealing layer at the contact points between the flexible pad 31 and the first sealing layer of the support device 3, and at the contact points between the flexible covering 33 and the concrete truncated pyramid 32, is greater than the thickness of the second sealing layer at other locations.

[0058] In this embodiment, since a first sealing layer has been provided on the surface of the lining layer 1, the support device 3 can be sealed separately using a second sealing layer after it is installed on the first sealing layer. Thickening treatment is applied to localized areas such as the contact area between the flexible pad 31 and the first sealing layer, and the contact area between the flexible covering 33 and the concrete truncated pyramid 32.

[0059] The gas filling / deflating pipeline support device provided by this invention utilizes a flexible pad 31 for bottom shock absorption, a concrete frustum 32 for strong intermediate support, and a flexible covering 33 at the top for fixing and shock absorption of the gas filling / deflating pipeline 4. Compared to traditional concrete support structures, the support device 3 of this invention has a simple structure, good shock absorption effect, and is not prone to cracking or falling off under strong vibrations. Furthermore, the material of the flexible pad 31 has strong sealing properties, thereby enhancing the local sealing of the concrete lining.

[0060] The above description is merely a few embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A support device for the filling and releasing pipeline of a compressed air energy storage gas tank, characterized in that, The device includes: A flexible pad is installed on the lining layer at the bottom of the gas storage tank, and its bottom surface is adapted to the surface curvature of the lining layer; the flexible pad is bonded to the lining layer; A concrete truncated pyramid is disposed on the flexible pad, and its bottom surface has the same dimensions as the top surface of the flexible pad; the top surface dimension of the concrete truncated pyramid is smaller than its bottom surface dimension; the inflation / deflation pipe is placed in the middle of the top surface of the concrete truncated pyramid; the slope of the flexible pad and the concrete truncated pyramid are the same, and both are 0.5~0.

75. A flexible covering is applied to the outer wall of the inflation / deflation pipe.

2. The apparatus according to claim 1, characterized in that, The height of the flexible pad is 5-8 cm.

3. The apparatus according to claim 1, characterized in that, The top surface width of the concrete frustum is 10~20cm.

4. The apparatus according to claim 1, characterized in that, The material of the flexible padding layer and / or the flexible covering is any one of flexible concrete, rubber, acrylate and organosilicon.

5. A compressed gas energy storage facility, characterized in that, include: Lining layer; A support device is installed on the lining layer at the bottom of the gas storage tank, and the support device is the device according to any one of claims 1 to 4; A sealing layer is provided on the surface of the lining layer and the support device.

6. The gas storage facility according to claim 5, characterized in that, The sealing layer thickness at the contact points between the flexible pad of the support device and the lining layer, and at the contact points between the flexible covering body and the concrete truncated pyramid, is greater than the sealing layer thickness at other locations.

7. A compressed gas energy storage facility, characterized in that, include: Lining layer; A first sealing layer covers the inner surface of the lining layer; A support device is disposed on the first sealing layer at the bottom of the gas storage tank, and its bottom surface is adapted to the surface curvature of the first sealing layer. The support device is the device according to any one of claims 1 to 4. A second sealing layer covers the surface of the support assembly.

8. The gas storage facility according to claim 7, characterized in that, The thickness of the second sealing layer at the contact points between the flexible pad of the support device and the first sealing layer, and at the contact points between the flexible covering body and the concrete truncated pyramid, is greater than the thickness of the second sealing layer at other locations.

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