Elastic anti-deformation device in gas storage tank
By installing anti-deformation spring devices and cross bracing structures inside the gas storage tank, combined with an outer concrete layer, the structural stability problem of the gas storage tank in a deep-buried environment is solved, realizing the release and recovery of elastic deformation, extending service life and improving safety and economy.
Patent Information
- Application Number
- CN202520780510.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-23
AI Technical Summary
Existing gas storage tanks, when buried in deep environments, suffer from structural stability issues due to long-term alternating loads, making them prone to cracks and fatigue failure, which affects their service life and safety.
By employing an anti-deformation spring device and cross bracing structure inside the gas storage tank, combined with an outer concrete layer, the external pressure is released through elastic deformation and the tank returns to its original shape after the external pressure is unloaded, thereby enhancing the deformation resistance of the gas storage tank.
It effectively resists external pressure and internal negative pressure, extends the service life of the gas storage tank, improves structural stability and economy, and ensures equipment safety and functionality.
Smart Images
Figure CN223882162U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to mechanical energy storage technical field relates to a gas storage tank inside elastic anti deformation device. BACKGROUND
[0002] Compressed air energy storage as a kind of efficient mechanical energy storage technology, compared with pumped storage has terrain adaptability, construction site flexibility and other advantages, can be deployed in energy production base nearby. Its energy storage internal pressure is usually up to 10MPa or more, so the quality and burial depth of gas storage reservoir surrounding rock are required higher. In the absence of natural salt cave, usually select uniaxial compressive strength greater than 60 MPa granite, basalt and other hard and dense rock layer construction artificial gas storage. The burial depth of such high quality rock layer is usually larger, the burial depth of conventional compressed air energy storage facilities needs to reach 150~900 meters (hard rock stratum) or 800~2000 meters (salt cave stratum), and is optimized by mechanical model to ensure safety and economy.
[0003] However, deep burial environment makes the gas storage tank be under the seepage action of underground water for a long time. In the prior art, the gas storage tank usually adopts the structure form that the steel pipe is wrapped with concrete, but the concrete is easy to produce cracks under the long-term underground water erosion, so that the underground water seeps to the outer wall of the steel pipe, forming sustained external pressure. When the internal pressure of the gas storage tank is higher than the external pressure, the structure can still remain stable. However, in the energy release and power generation process, if the internal pressure is reduced to below the external pressure, the gas storage tank will be concave inward under the joint action of external water pressure and internal negative pressure, and serious deformation will be generated. The repeated expansion and contraction deformation is easy to cause fatigue failure of the steel pipe, significantly shortens the service life, and even affects the safety and functionality of the energy storage system.
[0004] Therefore, an elastic anti-deformation device capable of effectively resisting external pressure or internal negative pressure is needed to solve the structural stability problem of deep-buried gas storage tank under long-term alternating load, so as to improve the reliability and economy of compressed air energy storage system. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the prior art problem, provide a kind of gas storage tank inside elastic anti deformation device, not only can release external pressure by elastic deformation, but also can restore original shape after external pressure unloading or internal pressure greater than external pressure.
[0006] To achieve the above object, the utility model adopts the following technical scheme:
[0007] The utility model aims at providing a kind of gas storage tank inside elastic anti deformation device, including anti deformation spring device and cross brace, the cross brace both ends are connected by anti deformation spring device and gas storage tank inner wall, the gas storage tank outer wall is covered with concrete layer.
[0008] Preferably, the anti-deformation spring device comprises a spring, a spring cylinder top plate, a spring cylinder side plate and a spring cylinder bottom plate; the spring cylinder bottom plate is connected with the inner wall of the gas storage tank; the outer edge of the spring cylinder bottom plate is connected with the inner wall of the spring cylinder side plate, and the bottom of the spring cylinder side plate is connected with the inner wall of the gas storage tank; the spring cylinder top plate and the spring cylinder bottom plate are connected through the spring; the spring cylinder top plate and the spring cylinder side plate are connected in sliding mode, and the spring cylinder top plate is connected with the cross support.
[0009] Preferably, the cross sections of the spring cylinder top plate and the spring cylinder bottom plate are circular; and the cross section radius of the spring cylinder top plate is equal to the cross section radius of the spring cylinder bottom plate.
[0010] Preferably, the anti-deformation spring device comprises a spring, a spring cylinder top plate, a spring cylinder side plate and a spring cylinder bottom plate; the spring cylinder bottom plate is connected with the inner wall of the gas storage tank; the upper surface of the spring cylinder bottom plate is connected with the bottom surface of the spring cylinder side plate; the spring cylinder top plate and the spring cylinder bottom plate are connected through the spring; the spring cylinder top plate and the spring cylinder side plate are connected in sliding mode, and the spring cylinder top plate is connected with the cross support.
[0011] Preferably, the cross sections of the spring cylinder top plate and the spring cylinder bottom plate are circular; the cross section radius of the spring cylinder bottom plate is equal to the sum of the cross section radius of the spring cylinder top plate and the thickness of the spring cylinder side plate.
[0012] Preferably, the spring is provided in plurality; the plurality of springs are uniformly distributed on the spring cylinder bottom plate, and the bottom ends of the springs are welded with the spring cylinder bottom plate.
[0013] Preferably, the inner wall of the spring cylinder side plate is provided with a guide groove; and the outer edge of the spring cylinder top plate is provided with a guide boss matched with the groove.
[0014] Preferably, the cross support is provided in plurality along the axial direction of the gas storage tank; and the row distance of the adjacent cross supports is 2m.
[0015] Preferably, the utility model further comprises a longitudinal positioning rod; and the center of the plurality of cross supports is sequentially connected with the longitudinal positioning rod.
[0016] Preferably, the spring is made of stainless steel.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] The anti-deformation spring device evenly disperses the deformation stress of the tank caused by pressure fluctuations or external loads, reducing local stress concentration, thereby extending the service life of the gas storage tank and reducing maintenance frequency. The radial support strength is enhanced by horizontal bracing, facilitating access for maintenance personnel while balancing structural rigidity and practicality. The outer concrete layer further strengthens the pressure resistance and impact resistance of the gas storage tank. This invention helps the gas storage tank resist external water pressure or internal negative pressure, achieving elastically recoverable deformation and ensuring the stability of the gas storage tank during operation. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a cross-sectional view of an elastic anti-deformation device inside a gas storage tank according to the present invention.
[0021] Figure 2 for Figure 1 Sectional view of AA in the middle;
[0022] Figure 3 This is a schematic diagram of the anti-deformation device in Embodiment 1 of this utility model;
[0023] Figure 4 for Figure 3 Cross-sectional view of aa in the middle;
[0024] Figure 5 This is a schematic diagram of the anti-deformation device in Embodiment 2 of this utility model.
[0025] The components include: 1. Anti-deformation spring device; 2. Horizontal brace; 3. Longitudinal positioning rod; 4. Gas storage tank; 6. Spring; 7. Spring cylinder top plate; 8. Spring cylinder side plate; 9. Spring cylinder bottom plate. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based upon the embodiments of the application, all other embodiments that would be obtained by persons having ordinary skill in the art without having to make inventive efforts fall within the scope of the application.
[0028] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0029] In the description of the embodiments of the application, it should be noted that, if the terms "upper", "lower", "horizontal", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the application when it is usually placed, which is only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0030] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0031] In the description of the embodiments of the application, it should also be noted that, unless otherwise explicitly specified and limited, if the terms "set", "mount", "connected", "connected" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or they can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.
[0032] The application will be further described in detail below with reference to the drawings:
[0033] The utility model provides a kind of inside elastic anti-deformation device of gas storage tank, including anti-deformation spring device 1 and cross brace 2;The both ends of cross brace 2 are connected by anti-deformation spring device 1 and the inner wall of gas storage tank 4;The outer wall of gas storage tank 4 is coated with concrete layer 5.The utility model is by the combined structure of anti-deformation spring device 1 and cross brace 2, significantly improve the anti-deformation ability and overall stability of gas storage tank.Anti-deformation spring device 1 can evenly disperse the deformation stress of tank body due to pressure fluctuation or external load, reduce local stress concentration, thereby prolong the service life of gas storage tank 4 and reduce maintenance frequency;Cross brace 2 enhances radial support strength, also facilitate maintenance personnel to pass through, give consideration to structural rigidity and practicality.In addition, outer concrete layer 5 further strengthens the pressure resistance and impact resistance of gas storage tank 4, forms the collaborative protection system of "internal elastic buffer+external rigid protection", especially applicable to high pressure (5-10MPa) and high temperature environment, effectively guarantee the safety and economy of gas storage tank 4.
[0034] The cross brace 2 is provided with a plurality of axial directions along the gas storage tank 4, while ensuring the structural strength, the stress distribution of support system is optimized, to avoid instability of tank body due to excessive local load;The pitch of adjacent cross brace 2 is 2m, reasonable pitch ensures the continuity of axial bearing, and also considers the accessibility of maintenance space, to facilitate maintenance personnel to pass through and check.
[0035] As shown in Figures 1-2 The utility model inside elastic anti-deformation device of gas storage tank further includes longitudinal positioning rod 3;Longitudinal positioning rod 3 is DN25 steel pipe;The center of longitudinal positioning rod 3 and multiple cross brace 2 is sequentially connected, and longitudinal positioning rod 3 forms axial rigid connection framework, effectively restricts the displacement of each cross brace 2, to prevent local deformation accumulation.
[0036] Embodiment 1
[0037] A kind of inside elastic anti-deformation device of gas storage tank, including anti-deformation spring device 1 and two mutually perpendicular welded cross brace 2;The both ends of cross brace 2 are connected by anti-deformation spring device 1 and the inner wall of gas storage tank 4;The outer wall of gas storage tank 4 is coated with concrete layer 5.Anti-deformation spring device 1 includes spring 6, spring cylinder top plate 7, spring cylinder side plate 8 and spring cylinder bottom plate 9.
[0038] As shown in Figure 3 And Figure 4 Spring cylinder top plate 7 is cylindrical, and the radius of its bottom surface is 58cm, and the thickness is 2cm-3cm;Its lower surface is welded with spring 6, and the upper surface is welded with cross brace 2.
[0039] Spring cylinder side plate 8 is annular structure with the inside radius of 58cm and the thickness of 2cm-3cm, and the bottom is welded with the inner wall of gas storage tank 4;Spring cylinder side plate 8 inner wall is welded with the outer edge of spring cylinder bottom plate 9.
[0040] The spring cylinder bottom plate 9 is a cylinder with a bottom surface radius of 58 cm and a thickness of 2-3 cm, which is welded to the inner wall of the gas storage tank 4.
[0041] The spring 6 is welded to the spring cylinder top plate 7 at one end and to the spring cylinder bottom plate 9 at the other end. A total of five springs 6 are provided, four of which are evenly welded in a ring shape to the spring cylinder bottom plate 9, and one is welded to the center of the spring cylinder bottom plate 9, which is beneficial to withstand forces in different oblique directions, so that the springs 6 produce different buffer deformations, disperse the stress of a single spring 6, improve the overall service life, reduce the maintenance process, and improve economic benefits.
[0042] The diameter of the cross brace 2 is 22 mm, and the spring 6 is made of stainless steel with specifications of φ2*12*60*15N (wire diameter*outer diameter*free length*total number of turns), and the thickness of the concrete layer 5 is generally 50-100 cm, which is determined according to the structural calculation of the site stress condition.
[0043] Example 2
[0044] As shown in Figure 5 The difference between this embodiment and example 1 is that the spring cylinder top plate 7 is a cylinder with a bottom surface radius of 58 cm and a thickness of 2-3 cm, and the lower surface is welded to the spring 6, and the upper surface is welded to the cross brace 2.
[0045] The spring cylinder side plate 8 is an annular structure with an inner radius of 58 cm and a thickness of 2 cm, and the bottom is welded to the inner wall of the gas storage tank 4. The bottom surface of the spring cylinder side plate 8 is welded to the upper surface of the spring cylinder bottom plate 9.
[0046] The spring cylinder bottom plate 9 is a cylinder with a bottom surface radius of 60 cm and a thickness of 3 cm, which is welded to the inner wall of the gas storage tank 4.
[0047] Example 3
[0048] The difference between this embodiment and example 1 is that the spring cylinder side plate 8 has a guide groove on the inner wall, and the spring cylinder top plate 7 has a guide boss on the outer edge that matches the groove.
[0049] In summary, the utility model provides a kind of elastic anti-deformation device inside gas storage tank, can assist gas storage tank 4 to resist external water pressure or internal negative pressure, realize the deformation of elastic recoverable, ensure the stability of gas storage tank operation period, prolong the service life of structure, guarantee the normal operation of equipment.
[0050] The construction steps of the device are as follows:
[0051] Step 1: excavate or expand the underground artificial chamber or salt cave into a shape;
[0052] Step 2: concrete layer 5 is formed on the outer surface of the concrete pouring gas tank 4, and backfill grouting between the surrounding rock and the concrete is carried out;
[0053] Step 3: on-site welding and installation of the gas tank 4 are carried out;
[0054] Step 4: the anti-deformation spring device 1 is prefabricated in advance on the ground industrial site, and is directly welded on the inner wall of the gas tank 4 after step 3 is completed;
[0055] Step 5: the cross brace 2 is welded on the spring cylinder top plate 7;
[0056] Step 6: the longitudinal positioning rod 3 is welded with the cross brace 2.
[0057] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model. For those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. An elastic anti-deformation device inside a gas tank, characterized in that, It comprises anti-deformation spring device (1) and cross brace (2), both ends of cross brace (2) are connected through anti-deformation spring device (1) and inner wall of gas storage tank (4), and outer wall of gas storage tank (4) is covered with concrete layer (5).
2. An internal elastic anti-deformation device for a gas tank according to claim 1, characterized in that, Anti-deformation spring device (1) comprises spring (6), spring cylinder top plate (7), spring cylinder side plate (8) and spring cylinder bottom plate (9), spring cylinder bottom plate (9) is connected with inner wall of gas storage tank (4), outer edge of spring cylinder bottom plate (9) is connected with inner wall of spring cylinder side plate (8), bottom of spring cylinder side plate (8) is connected with inner wall of gas storage tank (4), spring cylinder top plate (7) is connected with spring cylinder bottom plate (9) through spring (6), spring cylinder top plate (7) is connected with spring cylinder side plate (8) through sliding, and spring cylinder top plate (7) is connected with cross brace (2).
3. An internal elastic anti-deformation device for a gas tank according to claim 2, characterized in that, Cross section of spring cylinder top plate (7) and spring cylinder bottom plate (9) is circular, and cross section radius of spring cylinder top plate (7) is equal to cross section radius of spring cylinder bottom plate (9).
4. The internal elastic anti-deformation device of a gas tank according to claim 1, characterized in that, Anti-deformation spring device (1) comprises spring (6), spring cylinder top plate (7), spring cylinder side plate (8) and spring cylinder bottom plate (9), spring cylinder bottom plate (9) is connected with inner wall of gas storage tank (4), upper surface of spring cylinder bottom plate (9) is connected with bottom surface of spring cylinder side plate (8), spring cylinder top plate (7) is connected with spring cylinder bottom plate (9) through spring (6), spring cylinder top plate (7) is connected with spring cylinder side plate (8) through sliding, and spring cylinder top plate (7) is connected with cross brace (2).
5. An internal elastic anti-deformation device for a gas tank according to claim 4, characterized in that, Cross section of spring cylinder top plate (7) and spring cylinder bottom plate (9) is circular, and cross section radius of spring cylinder bottom plate (9) is equal to sum of cross section radius of spring cylinder top plate (7) and thickness of spring cylinder side plate (8).
6. An internal elastic anti-deformation device for a gas tank according to claim 2 or 4, characterized in that, Multiple spring (6) are arranged, multiple spring (6) are evenly distributed on spring cylinder bottom plate (9), and bottom end of spring (6) is welded with spring cylinder bottom plate (9).
7. An internal elastic anti-deformation device for a gas tank according to claim 2 or 4, characterized in that, Inner wall of spring cylinder side plate (8) is provided with guide groove, and outer edge of spring cylinder top plate (7) is provided with guide boss matched with guide groove.
8. The internal elastic anti-deformation device of a gas tank according to claim 1, wherein, Multiple cross brace (2) are arranged along axial direction of gas storage tank (4), and pitch distance of adjacent cross brace (2) is 2m.
9. An internal elastic anti-deformation device for a gas tank according to claim 8, characterized in that, Longitudinal positioning rod (3) is further arranged, and center of longitudinal positioning rod (3) and multiple cross brace (2) are sequentially connected.
10. The internal elastic anti-deformation device of a gas tank according to claim 1, characterized in that, Spring (6) is made of stainless steel.