Method for installing horizontal storage tank of artificial chamber gas storage

Abstract

The invention provides a method for installing a horizontal storage tank of an artificial chamber gas storage, and relates to the technical field of high-pressure gas storage. The anti-floating anchor rod is combined with the round steel slide way and the L-shaped guide rail, and the construction strategy that the double-layer reinforcing mesh in the lining layer of the gas storage and the horizontal storage tank are installed step by step is combined, so that the problem that the binding efficiency of the double-layer reinforcing mesh in the lining layer of the gas storage is low is solved, one-time pouring of lining layer concrete is achieved, the integrity of the lining layer is improved, and the construction period is shortened. And the field installation process is simplified, and the overall construction efficiency and safety are improved.

Description

Technical Field

[0001] This application relates to the field of high-pressure gas storage, and more particularly to a method for installing a horizontal storage tank in an artificial chamber gas storage facility. Background Technology

[0002] Against the backdrop of global energy transition, compressed air storage (CES) technology has become one of the most promising large-scale energy storage technologies due to its outstanding advantages such as large storage capacity, long storage cycle, relatively low cost, and environmental friendliness. The technical principle involves using electricity to compress air during off-peak grid periods and storing it in a gas storage facility. During peak electricity demand periods, the high-pressure air is released to drive a steam turbine to generate electricity. Artificial chamber gas storage is a solution that utilizes underground abandoned mine shafts, tunnels, and other rock cavern spaces to store compressed air, aiming to solve the core bottlenecks in the compressed air energy storage industry chain, such as high storage and transportation costs and difficulties in scaling up operations.

[0003] The structure of an artificial gas storage chamber mainly consists of surrounding rock, lining, and a horizontal storage tank. The lining and surrounding rock serve as the primary load-bearing structures, while the horizontal storage tank acts only as a sealing structure, transmitting the medium pressure to the lining and surrounding rock. Cracking of the plain concrete lining is a common phenomenon under high internal pressure cyclic loading. Therefore, the lining typically incorporates a double-layer steel mesh and requires the pouring of high-strength self-compacting concrete to ensure its load-bearing capacity. However, traditional construction methods require installing the horizontal storage tank first and then binding the double-layer steel mesh in the lining. Due to the confined space within the lining, this double-layer steel mesh binding is difficult for construction workers, resulting in low construction efficiency. Therefore, it is necessary to improve this process to increase construction efficiency and reduce construction difficulty. Summary of the Invention

[0004] One of the purposes of this application is to provide a method for installing horizontal storage tanks in artificial chamber gas storage facilities, which aims to solve the problem of low construction efficiency of existing artificial chamber gas storage facilities.

[0005] The technical solution of this application is: A method for installing a horizontal storage tank in an artificial chamber gas storage facility includes the following steps: Multiple sets of anti-buoyancy anchors are installed along the axis at the first preset positions on both sides of the lower part of the tunnel rock mass of the gas storage facility, and guide rail supports are installed on the pad of each anti-buoyancy anchor. L-shaped guide rails are installed and welded on the guide rail supports in the same row on each side of the tunnel rock mass, and round steel slides adapted to the L-shaped guide rails are installed on the two outer side walls of the lower part of the horizontal storage tank. Binding of double-layer steel mesh in the lining layer of the gas storage tank; The horizontal storage tank is transported into the tunnel, and the front end of the horizontal storage tank is placed on the L-shaped guide rail; the horizontal storage tank is then pulled and slid to the first preset position and installed; Weld the round steel slide rail to the guide rail and fix it in place; tie the double-layer steel mesh at the outer end of the horizontal storage tank and complete the tying of all the double-layer steel mesh; set up the formwork and pour the concrete for the lining layer.

[0006] As one technical solution of this application, the round steel slide rail is welded to the horizontal storage tank along the axial direction of the outer wall of the horizontal storage tank, and its length is the same as the length of the cylinder of the horizontal storage tank.

[0007] As one technical solution of this application, after the round steel slide is installed, a traction lug is installed and welded on the center of the outer wall of the inner end cap of the horizontal storage tank. Multiple guide pulleys are installed from bottom to top on the rock mass of the inner end face of the gas storage tank. The upper guide pulley is installed at the same horizontal height as the traction lug, and the lower guide pulley is installed at a height that matches the height of the double-layer steel mesh, so as to guide the horizontal storage tank.

[0008] As one technical solution of this application, two adjustable trackless flatcars are used to transport the horizontal storage tank into the tunnel, and each trackless flatcar is equipped with a saddle for temporarily supporting the horizontal storage tank; when the horizontal storage tank is transported to the front section of the L-shaped guide rail, the two round steel slides on both sides of the bottom front end of the horizontal storage tank are placed on the L-shaped guide rail by lifting the trackless flatcars.

[0009] As one technical solution of this application, a winch is installed at the bottom of the tunnel at the front end of the gas storage tank, and the winch is anchored to the rock mass at the bottom of the tunnel; a shackle is installed on the traction lug and one end of a steel wire rope is connected, and the other end of the steel wire rope is passed through the guide pulley and then through the double-layer steel mesh from the bottom to connect with the winch; the winch is started to pull and slide the horizontal storage tank to the first preset position.

[0010] As one technical solution of this application, the anti-buoyancy anchor is installed along the normal direction of the tunnel rock mass.

[0011] As one technical solution of this application, the guide rail support is installed in a direction perpendicular to the pad, and the length of the guide rail support is greater than the thickness of the lining layer, while reserving the allowance required for cutting and finishing construction, so that the L-shaped guide rail is installed between the inner steel mesh of the lining layer and the outer wall of the horizontal storage tank.

[0012] As one technical solution of this application, formwork is erected at the outer end of the gas storage tank and the lining concrete of the chamber is poured in one go. The lining concrete is made of high-strength self-compacting concrete to form the lining layer.

[0013] The beneficial effects of this application are: (1) This application provides a method for installing a horizontal storage tank in an artificial tunnel gas storage facility. By combining anti-buoyancy anchor rods with round steel slide rails and L-shaped guide rails, the horizontal storage tank is traction-sliding into place in the narrow space between its outer wall and the inner layer of steel mesh in the lining layer. This solves the problem of positioning the horizontal storage tank in the narrow space of the tunnel and improves the positioning accuracy of the horizontal storage tank.

[0014] (2) Furthermore, it adopts a construction strategy that combines the double-layer steel mesh in the gas storage lining layer with the horizontal storage tank for step-by-step installation. First, the double-layer steel mesh in the gas storage lining layer is tied, and then the horizontal storage tank is slid into place. This solves the problems of the traditional construction method of first installing the horizontal storage tank and then tying the double-layer steel mesh in the gas storage lining layer, such as the narrow space of the lining layer, the difficulty of personnel operation when tying the steel mesh, the low construction efficiency, and the unreliable quality. It effectively improves the construction efficiency and the positioning accuracy of the horizontal storage tank.

[0015] (3) Furthermore, by utilizing the guide pulleys pre-embedded on the rock mass at the inner end face of the gas storage tank, the winch is arranged outside the gas storage tank to realize the reverse traction and sliding of the horizontal storage tank into position. This solves the problem that it is difficult to arrange large-scale jacking and sliding or traction devices after the steel mesh of the lining layer of the chamber is tied, greatly reducing the manpower burden during installation, improving the level of construction automation, shortening the construction period, saving time and effort, and achieving high construction efficiency.

[0016] (4) Furthermore, it adopts a combination of anti-buoyancy anchor rods, round steel slide rails, and L-shaped guide rails to realize the fixation of the horizontal storage tank and the gas storage rock mass, and solve the problem of anti-buoyancy when the horizontal storage tank is poured with lining concrete.

[0017] (5) Furthermore, the horizontal storage tank is positioned as a whole in the chamber, realizing the one-time pouring of the external lining concrete, avoiding axial or circumferential construction joints in the lining concrete, and significantly improving the integrity and pressure bearing capacity of the chamber composite structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the artificial chamber gas storage facility provided in this application embodiment; Figure 2 This is a schematic diagram of the installation of the anti-buoyancy anchor provided in the embodiments of this application; Figure 3This is a schematic diagram of the first angle of anti-buoyancy anchor installation provided in an embodiment of this application; Figure 4 This is a schematic diagram of the guide rail support installation provided in an embodiment of this application; Figure 5 This is a schematic diagram of the first angle of guide rail support installation provided in an embodiment of this application; Figure 6 This is a schematic diagram of the L-shaped guide rail installation provided in an embodiment of this application; Figure 7 This is a schematic diagram of the first angle of L-shaped guide rail installation provided in an embodiment of this application; Figure 8 This is a schematic diagram of the installation of the round steel slide rail provided in an embodiment of this application; Figure 9 This is a schematic diagram of the traction lug installation provided in an embodiment of this application; Figure 10 This is a schematic diagram of the installation of the guide pulley on the inner end face of the gas storage tank provided in an embodiment of this application; Figure 11 A schematic diagram of the double-layer steel mesh of the gas storage lining layer provided in the embodiments of this application; Figure 12 This is a schematic diagram of a trackless flatcar transporting a horizontal storage tank provided in an embodiment of this application; Figure 13 This is a schematic diagram of the winch installation provided in an embodiment of this application; Figure 14 This is a schematic diagram of the sliding and positioning of a horizontal storage tank provided in an embodiment of this application; Figure 15 This is a schematic diagram of the connection between a horizontal storage tank and an L-shaped guide rail provided in an embodiment of this application; Figure 16 This is a schematic diagram of the first angle of connection between a horizontal storage tank and an L-shaped guide rail, provided in an embodiment of this application.

[0020] Icons: 1-Tunnel; 2-Surrounding rock; 3-Gas storage; 4-Outer steel mesh; 5-Inner steel mesh; 6-Horizontal storage tank; 7-Liner layer; 8-Anti-buoyancy anchor; 9-Plate; 10-Guide rail support; 11-L-shaped guide rail; 12-Round steel slide rail; 13-Traction ear plate; 14-Guide pulley; 15-Double-layer steel mesh; 16-Trackless flatcar; 17-Saddle; 18-Winch; 19-Wire rope; 20-Tunnel; 21-Positioning anchor. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this application, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only used to facilitate the description of this application and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Furthermore, in this application, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Moreover, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature located at the lower outer periphery of the second feature and diagonally below it, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] Example: Please refer to Figure 1 (Refer to) Figures 2 to 16 This embodiment provides a method for installing a horizontal storage tank in an artificial chamber gas storage facility, which mainly includes the following steps: like Figure 2 and Figure 3 As shown, multiple sets of anti-buoyancy anchors 8 are installed along the axis at the first predetermined positions on both sides of the lower part of the rock mass of tunnel 20 in gas storage 3. The anti-buoyancy anchors 8 are installed along the normal direction of the rock mass of tunnel 20. Figure 4 and Figure 5 As shown, guide rail supports 10 are installed on the pad 9 of each anti-buoyancy anchor 8. The guide rail supports 10 are installed in a direction perpendicular to the pad 9, and the length of the guide rail supports 10 is greater than the thickness of the lining layer 7. Allowance is reserved for cutting and finishing construction so that the L-shaped guide rail 11 can be installed between the inner steel mesh 5 of the lining layer 7 and the outer wall of the horizontal storage tank 6 without hindering the sliding and positioning of the horizontal storage tank 6. like Figure 6 and Figure 7 As shown, the upper surface of the guide rail support 10 is precision-finished to ensure the assembly accuracy of the guide rail support 10 and the L-shaped guide rail 11, as well as the flatness and straightness of the L-shaped guide rail 11. After precision finishing, L-shaped guide rails 11 are installed and welded on the guide rail supports 10 in the same row on each side of the rock mass in the tunnel 20. The L-shaped guide rails 11 should be installed between the inner steel mesh 5 of the lining layer 7 and the outer wall of the horizontal storage tank 6 and extend a certain distance to the outside of the gas storage tank 3. Figure 8 As shown, round steel slide rails 12 adapted to L-shaped guide rails 11 are installed on the two outer side walls of the lower part of the horizontal storage tank 6; wherein, the round steel slide rails 12 are welded to the horizontal storage tank 6 along the axial direction of the outer wall of the horizontal storage tank 6, and the length is the same as the length of the cylinder of the horizontal storage tank 6. like Figure 9 As shown, after the round steel slide rail 12 is installed, the traction lug 13 is installed and welded on the center of the outer wall of the inner end cap of the horizontal storage tank 6; as shown Figure 10As shown, multiple guide pulleys 14 are installed from bottom to top on the rock mass of the inner end face of the gas storage tank 3. The upper guide pulley 14 is installed at the same horizontal height as the traction ear plate 13, and the installation height of the lower guide pulley 14 is adapted to the height of the double-layer steel mesh 15. It should be able to ensure that the steel wire rope 19 for traction passes through the double-layer steel mesh 15 of the lining layer 7 of the gas storage tank 3 for traction and guidance of the horizontal storage tank 6. like Figure 11 As shown, several sets of steel reinforcement support positioning anchors 21 are installed along the circumference of the rock mass of the tunnel 20 of the gas storage 3. The double-layer steel mesh 15 of the lining layer 7 is tied with the positioning anchors 21 as the reference to ensure the accurate positioning of the double-layer steel mesh 15 and prevent deformation due to its own weight. The double-layer steel mesh 15 on the outer end facade of the lining layer 7 of the gas storage 3 is not tied to reserve a sliding channel for the horizontal storage tank 6. like Figure 12 As shown, two adjustable trackless flatcars 16 are used to transport the horizontal storage tank 6 into the tunnel 1, and each trackless flatcar 16 is equipped with a saddle 17 for temporary support of the horizontal storage tank 6; when the horizontal storage tank 6 is transported to the front section of the L-shaped guide rail 11, the two round steel slide rails 12 on both sides of the bottom front end of the horizontal storage tank 6 are placed on the L-shaped guide rail 11 by lifting the trackless flatcar 16; as Figure 13 As shown, a winch 18 is installed at the bottom of the tunnel 1 at the front end of the gas storage 3, and the winch 18 is anchored to the rock mass at the bottom of the tunnel 1; a shackle is installed on the traction lug 13 and one end of the wire rope 19 is connected to it; the other end of the wire rope 19 is passed through the guide pulley 14 and then through the double-layer steel mesh 15 from the bottom to connect with the winch 18; as shown Figure 14 As shown, start the winch 18 to pull the horizontal storage tank 6, and use the round steel slide rails 12 on both sides of the bottom of the horizontal storage tank 6 to slide it on the L-shaped guide rail 11 towards the inner end of the gas storage tank 3 until the horizontal storage tank 6 is pulled and slid to the first preset position and installed. like Figure 15 and Figure 16 As shown, after the horizontal storage tank 6 is in place, the round steel slide 12 is welded and fixed to the guide rail, so that the horizontal storage tank 6, the round steel slide 12, the L-shaped guide rail 11, the guide rail support 10, and the anti-buoyancy anchor 8 are connected to form an integral load-bearing structure to withstand the buoyancy of the lining layer 7 concrete pouring; after the horizontal storage tank 6 is fixed, the double-layer steel mesh 15 at the outer end of the horizontal storage tank 6 is tied to complete the steel reinforcement binding of all gas storage tank 3 lining layer 7; formwork is erected at the outer end of the gas storage tank 3 and the chamber lining layer 7 concrete is poured in one go. The lining layer 7 concrete is high-strength self-compacting concrete. The integral pouring can avoid axial or circumferential construction cold joints in the lining layer 7 concrete, significantly improving the integrity and load-bearing capacity of the gas storage tank 3 composite structure, so as to complete the pouring of the lining layer 7.

[0029] It should be noted that, as Figure 1As shown, the structure of the artificial chamber gas storage 3 is mainly a composite structure of surrounding rock 2 + lining layer 7 + horizontal storage tank 6. The horizontal storage tank 6 serves only as a sealing structure, while the surrounding rock 2 and lining layer 7 serve as the main pressure-bearing structures. The lining layer 7 is a cylindrical reinforced concrete structure with a double-layer steel mesh 15 inside. The inner steel mesh 5 is close to the outer wall of the horizontal storage tank 6, and the outer steel mesh 4 is close to the surrounding rock 2. After the horizontal storage tank 6 is installed, the lining layer 7 concrete is poured to form the overall structure of the gas storage 3.

[0030] It should be noted that this application provides a method for installing a horizontal storage tank in an artificial tunnel gas storage facility. By combining the anti-buoyancy anchor rod 8 with the round steel slide rail 12 and the L-shaped guide rail 11, the horizontal storage tank 6 is traction-slid into place in the narrow space between its outer wall and the inner steel mesh 5 of the lining layer 7. This solves the problem of positioning the horizontal storage tank 6 in the narrow space of the tunnel 20 and improves the positioning accuracy of the horizontal storage tank 6. It adopts a construction strategy that combines the double-layer steel mesh 15 in the lining layer 7 of the gas storage 3 with the horizontal storage tank 6 in stages. First, the double-layer steel mesh 15 in the lining layer 7 of the gas storage 3 is tied, and then the horizontal storage tank 6 is slid into place. This solves the problems of the traditional construction method, which first installs the horizontal storage tank 6 and then ties the double-layer steel mesh 15 in the lining layer 7 of the gas storage 3. These problems include the narrow space in the lining layer 7, the difficulty of personnel operation when tying the steel mesh, the low construction efficiency, and the unreliable quality. It effectively improves the construction efficiency and the positioning accuracy of the horizontal storage tank 6. It utilizes guide pulleys 14 pre-embedded in the rock mass of the inner end face of the gas storage tank 3 to position the winch 18 outside the gas storage tank 3, enabling the horizontal storage tank 6 to be traction-slid into place in the reverse direction. This solves the problem of difficulty in arranging large-scale jacking, sliding, or traction devices after the double-layer steel mesh 15 of the lining layer 7 of the chamber is tied, greatly reducing the manpower burden during installation, improving the level of construction automation, shortening the construction period, saving time and labor, and increasing construction efficiency. It adopts a combination of anti-buoyancy anchor rods 8, round steel slides 12, and L-shaped guide rails 11 to fix the horizontal storage tank 6 to the rock mass of the gas storage tank 3, solving the problem of anti-buoyancy during the pouring of the lining layer 7 concrete for the horizontal storage tank 6. The horizontal storage tank 6 is positioned as a whole inside the chamber, enabling the one-time pouring of the concrete for its external lining layer 7, avoiding axial or circumferential construction joints in the lining layer 7 concrete, and significantly improving the integrity and pressure-bearing capacity of the chamber composite structure.

[0031] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for installing a horizontal storage tank in an artificial chamber gas storage facility, characterized in that, Includes the following steps: Multiple sets of anti-buoyancy anchors are installed along the axis at the first preset positions on both sides of the lower part of the tunnel rock mass of the gas storage facility, and guide rail supports are installed on the pad of each anti-buoyancy anchor. L-shaped guide rails are installed and welded on the guide rail supports in the same row on each side of the tunnel rock mass, and round steel slides adapted to the L-shaped guide rails are installed on the two outer side walls of the lower part of the horizontal storage tank. Binding of double-layer steel mesh in the lining layer of the gas storage tank; The horizontal storage tank is transported into the tunnel, and the front end of the horizontal storage tank is placed on the L-shaped guide rail; the horizontal storage tank is then pulled and slid to the first preset position and installed; Weld the round steel slide rail to the guide rail and fix it in place; tie the double-layer steel mesh at the outer end of the horizontal storage tank and complete the tying of all the double-layer steel mesh; set up the formwork and pour the concrete for the lining layer.

2. The method for installing a horizontal storage tank in an artificial chamber gas storage facility according to claim 1, characterized in that, The round steel slide rail is welded to the horizontal storage tank along the axial direction of the outer wall of the horizontal storage tank, and its length is the same as the length of the cylinder of the horizontal storage tank.

3. The method for installing a horizontal storage tank in an artificial chamber gas storage facility according to claim 1, characterized in that, After the circular steel slide is installed, a traction lug is installed and welded on the center of the outer wall of the inner end cap of the horizontal storage tank. Multiple guide pulleys are installed from bottom to top on the rock mass of the inner end face of the gas storage tank. The upper guide pulley is installed at the same horizontal height as the traction lug, and the lower guide pulley is installed at a height that matches the height of the double-layer steel mesh, so as to guide the horizontal storage tank.

4. The method for installing a horizontal storage tank in an artificial chamber gas storage facility according to claim 3, characterized in that, The horizontal storage tank is transported to the tunnel using two adjustable trackless flatcars, each of which is equipped with a saddle for temporary support. When the horizontal storage tank is transported to the front section of the L-shaped guide rail, the two round steel slides on both sides of the bottom front end of the horizontal storage tank are placed on the L-shaped guide rail by raising and lowering the trackless flatcars.

5. The method for installing a horizontal storage tank in an artificial chamber gas storage facility according to claim 3, characterized in that, A winch is installed at the bottom of the tunnel at the front end of the gas storage facility and anchored to the rock mass at the bottom of the tunnel; a shackle is installed on the traction lug and one end of a steel wire rope is connected to it; the other end of the steel wire rope is passed through the guide pulley and then through the double-layer steel mesh from the bottom to connect to the winch. The winch is started to pull and slide the horizontal storage tank to the first preset position.

6. The method for installing a horizontal storage tank in an artificial chamber gas storage facility according to claim 1, characterized in that, The anti-buoyancy anchor is installed along the normal direction of the tunnel rock mass.

7. The method for installing a horizontal storage tank in an artificial chamber gas storage facility according to claim 1, characterized in that, The guide rail support is installed in a direction perpendicular to the pad, and the length of the guide rail support is greater than the thickness of the lining layer, with allowance reserved for cutting and finishing construction, so that the L-shaped guide rail is installed between the inner steel mesh of the lining layer and the outer wall of the horizontal storage tank.

8. The method for installing a horizontal storage tank in an artificial chamber gas storage facility according to claim 1, characterized in that, Formwork is erected at the outer end of the gas storage tank, and the lining concrete is poured in one go. The lining concrete is made of high-strength self-compacting concrete to form the lining layer.

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