Spherical tank support structure and spherical tank assembly

Abstract

This utility model provides a spherical tank support structure and device, including a base, a support member, and a limiting member. The base is fixedly connected to the foundation structure. The support member is connected to the base and can rotate relative to the base. The upper part of the support member extends upward and is fixedly connected to the spherical tank, thereby supporting the spherical tank. The limiting member is connected to the base and slidably connected to the support member to guide the support member to swing along the direction of the line connecting the support member and the center of the spherical tank. The direction of the line connecting the support member and the center of the spherical tank is consistent with the direction of movement of the spherical tank when it undergoes thermal expansion and contraction. This allows the support member to swing relative to the base to achieve position compensation when the spherical tank undergoes thermal expansion and contraction, thereby avoiding severe stress concentration at the fixed connection between the support member and the spherical tank, which could lead to fatigue cracks. It also avoids bending stress in the support member during temperature alternation, which could affect the overall stability of the support system.

Description

Technical Field

[0001] This utility model relates to the field of storage tanks, and in particular to a support structure and device for a spherical tank. Background Technology

[0002] In fields such as air energy storage systems and petrochemicals, spherical tanks serve as crucial pressure vessels, and the reliability of their support structure directly impacts the safety of the entire system. Traditional spherical tanks often employ a fixed support structure with a rigid connection between the supports and the shell. While this structure performs well under constant temperature conditions, it becomes problematic in environments with frequent temperature fluctuations, such as when the tank undergoes temperature cycles (e.g., from room temperature to above 200°C) during energy storage / release. The fixed supports constrain this deformation, leading to severe stress concentration at the support-shell connection. Under prolonged thermal cycling loads, this can easily trigger fatigue cracks, threatening equipment safety. Furthermore, temperature fluctuations can cause additional bending stress on the supports, affecting the overall stability of the support system. Utility Model Content

[0003] The purpose of this invention is to solve the problem that existing spherical tank support structures are prone to stress concentration and thus affect safety in operating environments with frequent temperature changes.

[0004] To solve the above-mentioned technical problems, this utility model provides a spherical tank support structure, including a base, a support member, and a limiting member; the base is used for fixed connection with an external foundation structure; the support member is connected to the base and can rotate relative to the base, the upper part of the support member extends upward and is used to connect with the spherical tank to support the spherical tank; the limiting member is connected to the base and slidably connected with the support member to guide the support member to swing along the direction of the line connecting the support member and the center of the spherical tank.

[0005] In some embodiments of this application, the limiting member is provided with an elongated through hole for the support member to pass through, the length direction of the through hole being consistent with the direction of the line connecting the support member and the center of the spherical tank; the support member passes through the through hole, and the support member is movable along the length direction of the through hole.

[0006] In some embodiments of this application, the limiting member is provided with limiting blocks, which are located on both sides of the perforation width direction. The limiting blocks abut against the side wall of the support member to limit the displacement of the support member along the perforation width direction.

[0007] In some embodiments of this application, there is a movable gap between the support member and the side wall along the length direction of the perforation, the width of the movable gap being 1-5 mm; and / or the support member is able to swing relative to the base at an angle less than 0.25° along the direction of the line connecting the support member and the center of the spherical tank.

[0008] In some embodiments of this application, the base has a receiving cavity with a top opening; the support includes a connector and a pillar, the connector is disposed in the receiving cavity and is rotatable relative to the base, the pillar is fixed to the top of the connector and extends upward out of the base, and the upper part of the pillar is connected to the spherical tank; the limiting member is fixed to the top of the base and abuts against the connector to restrict the connector within the receiving cavity; the limiting member is also slidably connected to the side wall of the pillar to guide the support to swing along the direction extending from the line connecting the support and the center of the spherical tank.

[0009] In some embodiments of this application, the bottom surface of the connector is a downwardly convex arc shape, and the contour of the receiving cavity is adapted to the connector.

[0010] In some embodiments of this application, the connector is spherical with a diameter greater than that of the support column, and the axis of the support column passes through the center of the sphere of the connector; the height of the receiving cavity is greater than half the height of the connector, and the limiting member is provided with an inwardly protruding limiting portion, which is located above the receiving cavity and abuts against the upper part of the connector to restrict the connector within the receiving cavity.

[0011] In some embodiments of this application, there is a gap between the connector and the receiving cavity, and the gap is filled with a lubricating medium.

[0012] In some embodiments of this application, the gap has a radial dimension ranging from 0.2 to 2 mm; the lubricating medium fills more than 70% of the volume of the space formed by the gap; and the lubricating medium has a dropping point greater than 240°C.

[0013] In some embodiments of this application, the limiting member is detachably connected to the base.

[0014] A spherical tank device includes a spherical tank and a plurality of spherical tank support structures, wherein the plurality of spherical tank support structures are arranged circumferentially around the spherical tank, and the upper end of the support member of the spherical tank support structure is fixedly connected to the spherical tank.

[0015] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows:

[0016] The spherical tank support structure of this application includes a base, a support member, and a limiting member. The base is fixedly connected to the foundation structure. The support member is connected to the base and can rotate relative to the base. The upper part of the support member extends upward and is fixedly connected to the spherical tank, thereby supporting the spherical tank. The limiting member is connected to the base and slidably connected to the support member to guide the support member to swing along the direction of the line connecting the support member and the center of the spherical tank. The direction of the line connecting the support member and the center of the spherical tank is consistent with the direction of movement of the spherical tank when it undergoes thermal expansion and contraction. This allows the support member to swing relative to the base to achieve position compensation when the spherical tank undergoes thermal expansion and contraction, thereby avoiding severe stress concentration at the fixed connection between the support member and the spherical tank, which could lead to fatigue cracks. It also avoids bending stress in the support member during temperature alternation, which could affect the overall stability of the support system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a spherical tank device in one embodiment.

[0018] Figure 2 yes Figure 1 A schematic diagram of the local structure at point A.

[0019] Figure 3 yes Figure 2 A schematic diagram of the support structure for the spherical tank.

[0020] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure at BB.

[0021] Figure 5 yes Figure 3 A cross-sectional view of the structure at point CC.

[0022] Figure 6 yes Figure 2 The diagram shows the structure of the spherical tank device before and after expansion.

[0023] Figure 7 This is a schematic diagram of the limiting member in one embodiment.

[0024] The annotations in the attached figures are explained as follows:

[0025] 100-Spherical tank support structure; 200-Spherical tank; 300-Foundation structure; 1-Base; 11-Support body; 12-First flange; 13-Second flange; 111-Receiving cavity; 2-Limiting component; 21-Perforation; 22-Limiting part; 23-Limiting stop; 3-Support component; 31-Connecting component; 32-Column; 4-Anchor bolt; 5-Connecting screw. Detailed Implementation

[0026] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0027] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this application and simplifying 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. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] See Figure 1 A spherical tank device includes a spherical tank 200 and a plurality of spherical tank support structures 100. The plurality of spherical tank support structures 100 are arranged circumferentially around the spherical tank 200 and connected to the spherical tank 200, such that the plurality of spherical tank support structures 100 collectively support the spherical tank 200 and maintain the stability of the spherical tank 200. Figure 1 In the illustrated embodiment, 12 spherical tank support structures 100 are provided and evenly distributed around the periphery of the spherical tank 200. It should be noted that the number of spherical tank support structures 100 can also be other values.

[0030] See Figures 2 to 6 The spherical tank support structure 100 includes a base 1, a support member 3, and a limiting member 2. The base 1 is fixedly connected to an external foundation structure 300, which can be the ground or a concrete structure on the ground. The support member 3 is vertically arranged, with its lower end connected to the base 1 and capable of rotating relative to the base 1. The upper part of the support member 3 extends upward and is fixedly connected to the spherical tank 200. Specifically, the support member 3 and the spherical tank 200 are welded together, thereby providing support for the spherical tank 200. The limiting member 2 is connected to the base 1 and slidably connected to the support member 3 to guide the support member 3 to swing along the direction of the line connecting the support member 3 and the center of the spherical tank 200.

[0031] In the spherical tank support structure 100 of this application, such as Figure 6As shown, when the lower end of the support member 3 rotates relative to the base 1, the upper end of the support member 3 moves along the direction extending from the line connecting the support member 3 and the center of the spherical tank 200. Furthermore, the direction of movement of the upper end of the support member 3 is consistent with the direction of thermal expansion and contraction of the spherical tank 200. This allows for position compensation through the swinging of the support member 3 relative to the base 1 when the spherical tank 200 undergoes thermal expansion and contraction. This prevents severe stress concentration at the fixed connection between the support member 3 and the spherical tank 200, which could lead to fatigue cracks, and also avoids bending stress in the support member 3 during temperature alternation, thus ensuring the overall stability of the support system. Therefore, the spherical tank device is suitable for operating conditions ranging from ambient temperature to 200℃~240℃.

[0032] For example, in an air energy storage project, when the temperature of the spherical tank 200 rises from room temperature to 240°C, the tank expands radially, pushing the support member 3 away from the center of the sphere. The lower end of the support member 3 swings relative to the base 1, thus achieving positional compensation of the upper end of the support member 3 relative to the tank 200. This avoids severe stress concentration at the fixed connection between the support member 3 and the tank 200, and prevents bending stress in the support member 3 from affecting the overall stability of the support system. It should be noted that the temperature of the tank 200 can also be other values. The spherical tank device can also be applied to other operating scenarios where the tank 200 experiences frequent temperature changes.

[0033] In this design, the spherical tank assembly achieves position compensation through the rotation of the support member 3 relative to the base 1, and also through relative sliding between the support member 3 and the base 1. This reduces friction, making the rotation of the support member 3 relative to the base 1 smoother and more stable, preventing jamming. Furthermore, the support members 3 of the multiple spherical tank support structures 100 all swing along a direction close to or away from the center of the spherical tank 200, ensuring the stability of the spherical tank 200 and achieving uniform release of thermal stress, thus guaranteeing the long-term safe operation of the equipment.

[0034] See Figures 3 to 5 The base 1 includes a connected support body 11, a first flange 12, and a second flange 13. The first flange 12 is located at the bottom of the support body 11 and on its outer circumference. The first flange 12 is fixedly connected to the foundation structure 300 by anchor bolts 4, thus fixing the base 1 to the foundation structure 300. The second flange 13 is located at the top of the support body 11 and on its outer circumference. The second flange 13 is connected to a limiting member 2 by connecting screws 5, allowing the limiting member 2 to be detachably fixed to the base 1. There is a gap between the second flange 13 and the first flange 12, facilitating the installation of the anchor bolts 4 and connecting screws 5. Figure 3In the embodiment shown, the first flange 12 is fixedly connected to the foundation structure 300 by four M48 anchor bolts 4, and the second flange 13 is connected to the limiting member 2 by twelve sets of M36 connecting screws 5.

[0035] A receiving cavity 111 for assembling the support member 3 is provided in the middle of the top surface of the support body 11. The shape of the receiving cavity 111 is adapted to the shape of the bottom of the support member 3. The bottom structure of the support member 3 is spherical, and the outline of the receiving cavity 111 can be spherical or other shapes. Exemplarily, in the embodiments shown in Figures 4 and 5, the outline of the receiving cavity 111 includes a hemispherical lower space and a cylindrical upper space above the lower space. The bottom surface of the lower space protrudes downward and communicates with the upper space. The bottom surface of the receiving cavity 111 can be spherical. Specifically, the bottom surface of the receiving cavity 111 is a downwardly convex spherical shape, and the upper end of the receiving cavity 111 is cylindrical and smoothly transitions to the spherical shape, so that the cross-sectional outline of the receiving cavity 111 can be imagined as "U" shaped.

[0036] The limiting component 2 and the base 1 adopt a modular design, and the limiting component 2 is detachably connected to the top surface of the base 1, specifically by connecting screw 5 and the second flange 13, which facilitates quick assembly and disassembly between the limiting component 2 and the base 1, thereby facilitating the installation of the support component 3 and the maintenance of the spherical tank support structure 100 in the future, especially the maintenance of the connection between the limiting component 2 and the base 1.

[0037] See Figure 3 , Figure 4 as well as Figure 7 The limiting member 2 has an elongated through-hole 21 for the support member 3 to pass through. The through-hole 21 is specifically waist-shaped. The through-hole 21 is located directly above the receiving cavity 111, allowing the upper end of the support member 3 to pass through and connect to the spherical tank 200. The length direction of the through-hole 21 is consistent with the direction of the horizontal line connecting the support member 3 and the center of the spherical tank 200. The support member 3 can move along the length direction of the through-hole 21, thereby allowing it to swing along the direction of the line connecting the support member 3 and the center of the spherical tank 200. The horizontal line connecting the support member 3 and the center of the spherical tank 200 is the straight line formed by the projection of this line onto a horizontal plane. The straight line formed by the projection of any point on the support member 3 and the center of the spherical tank 200 onto a horizontal plane coincides with the horizontal line, meaning that the horizontal line connecting any point on the support member 3 and the center of the spherical tank 200 extends in the same direction. Figure 2 In the embodiment shown, the spherical tank 200 is connected to the top of the support member 3 at the point where its diameter is at its maximum on the horizontal plane, and the perpendicular line between the support member 3 and the center of the spherical tank 200 is the horizontal line connecting the support member 3 and the center of the spherical tank 200.

[0038] The limiting member 2 has an inwardly protruding limiting portion 22, which is located above the receiving cavity 111 and abuts against the lower end of the support member 3 to restrict the support member 3 within the receiving cavity 111, preventing the support member 3 from separating from the base 1, and allowing the support member 3 to rotate smoothly relative to the base 1. Specifically, the width of the through hole 21 is smaller than the size of the opening of the receiving cavity 111, and the limiting member 2 forms the limiting portion 22 at the edge of the through hole 21 in the width direction.

[0039] There is a movable gap between the support member 3 and the side wall of the perforation 21 along the length direction, so that the support member 3 can swing along the direction of the line connecting the support member 3 and the center of the sphere of the sphere 200.

[0040] The size of the movement gap is sufficient to meet the swing amplitude requirements of the support member 3 relative to the base 1 along the direction extending from the line connecting the support member 3 and the center of the spherical tank 200. When the swing amplitude of the support member 3 reaches the set maximum swing amplitude, the support member 3 is blocked by the side wall along the length direction of the perforation 21 and cannot move in the direction of increasing the swing amplitude. That is, the side wall along the length direction of the perforation 21 limits the swing amplitude of the support member 3. For example, the swing amplitude of the support member 3 relative to the base 1 along the direction extending from the line connecting the support member 3 and the center of the spherical tank 200 is less than 0.25°, so as to avoid the swing amplitude of the support member 3 being too large and affecting the stability of the spherical tank 200, and to facilitate the reset of the support member 3 during the thermal expansion and contraction of the spherical tank 200.

[0041] In one embodiment, the width of the movable gap is in the range of 1-5mm, so that the support member 3 can swing relatively little relative to the base 1 along the direction extending from the line connecting the support member 3 and the center of the spherical tank 200, so as to avoid the support member 3 swinging too much and affecting the stability of the spherical tank 200, and to facilitate the reset of the support member 3 during the thermal expansion and contraction of the spherical tank 200. In one embodiment, the width of the movable gap is preferably 3mm.

[0042] The limiting member 2 is provided with limiting blocks 23, which are located on both sides of the width direction of the perforation 21. The limiting blocks 23 abut against the side wall of the support member 3 to restrict the displacement of the support member 3 along the width direction of the perforation 21. This ensures that the support member 3 can only swing along the direction extending from the line connecting the support member 3 and the center of the spherical tank 200, and makes the rotation of the support member 3 relative to the base 1 more stable. The limiting blocks 23 mechanically constrain the movement of the support member 3 along the width direction of the perforation 21, preventing unexpected deflection during thermal deformation and thus preventing stress concentration at the connection between the support member 3 and the spherical tank 200. Figure 7 In the embodiment shown, two limiting blocks 23 located on both sides of the width direction of the perforation 21 are symmetrically arranged.

[0043] In some embodiments, the limiting member 2 may also be provided with limiting protrusions on both sides of the perforation 21 along its length to limit the swing amplitude of the support member 3.

[0044] See Figure 4 and Figure 5 The support member 3 includes a connector 31 and a support column 32. The connector 31 is disposed in the receiving cavity 111 and can rotate relative to the base 1. The support column 32 is fixed to the top of the connector 31 and extends upward out of the base 1. The upper part of the support column 32 is connected to the spherical tank 200.

[0045] The bottom surface of the connector 31 is a downward convex arc shape, and the contour of the receiving cavity 111 is adapted to the connector 31, so that when the connector 31 is installed in the receiving cavity 111, the connector 31 can automatically be located in the center of the receiving cavity 111 under the action of gravity; it also makes it easy for the connector 31 to return to the center of the receiving cavity 111 when the spherical tank 200 expands or contracts.

[0046] In one embodiment, the connector 31 is spherical and is installed in the receiving cavity 111 of the base 1. The connector 31 can rotate relative to the base 1 in any direction. By making the connector 31 spherical, the contact area between the connector 31 and the base 1 is smaller, thereby reducing the friction between the connector 31 and the base 1, making the swing of the support 3 relative to the base 1 smoother, and also simplifying the structure.

[0047] In an alternative embodiment, the connector 31 is cylindrical, with its axis horizontally positioned and perpendicular to the length direction of the perforation 21. In this embodiment, the connector 31 can only rotate along the length direction of the perforation 21, thereby allowing the support 3 to swing along the direction extending from the line connecting the support 3 and the center of the spherical tank 200.

[0048] exist Figure 4 In the illustrated embodiment, the height of the receiving cavity 111 is greater than half the height of the connector 31, and the limiting member 2 is located on the opening side of the receiving cavity 111, confining the connector 31 within the receiving cavity 111. It should be noted that the height of the receiving cavity 111 can also be less than or equal to half the height of the connector 31, and the sidewall of the through hole 21 of the limiting member 2 is configured to cooperate with the upper part of the connector 31, thereby confining the connector 31 within the receiving cavity 111.

[0049] There is a gap between the connector 31 and the receiving cavity 111, and the gap is filled with a lubricating medium to further reduce the friction when the connector 31 rotates relative to the base 1. This makes the swing of the support 3 relative to the base 1 smoother when the spherical tank 200 expands or contracts, thereby avoiding stress concentration at the connection between the support 3 and the spherical tank 200. It also makes it easier for the connector 31 to return to the center of the receiving cavity 111.

[0050] In one embodiment, the radial dimension of the gap along the connector 31 ranges from 0.2 to 2 mm, and the lubricating medium filling amount accounts for more than 70% of the volume of the space formed by the gap. For example, the inner diameter of the receiving cavity 111 is 2 mm larger than the diameter of the connector 31, that is, the radial dimension of the gap along the connector 31 is 1 mm, and the lubricating medium filling amount accounts for 80% of the volume of the space formed by the gap, so as to ensure that there is a small frictional force between the connector 31 and the base 1, and that the connector 31 is easier to reset to the center of the receiving cavity 111. Moreover, when the spherical tank 200 expands and contracts with heat, the lubricating medium is squeezed and moves, which reduces the thickness of the lubricating medium at the stress point between the connector 31 and the base 1, thereby allowing the connector 31 to move slightly within the gap, realizing adaptive position compensation for the support 3, avoiding severe stress concentration at the fixed connection between the support 3 and the spherical tank 200, and avoiding bending stress in the support 3 that would affect the overall stability of the support system. When the spherical tank 200 is reset, the support 3 can also be smoothly reset to the center of the cavity 111 because the connecting part 31 and the receiving cavity 111 are in a curved (spherical) fit.

[0051] In one embodiment, the dropping point of the lubricating medium is greater than 240°C, making it less prone to leakage. Dropping point: refers to the temperature at which a semi-solid state changes to a liquid state. In a preferred embodiment, the lubricating medium is a high-temperature grease with a temperature resistance of up to 260°C (i.e., the dropping point temperature of the lubricating medium is greater than 260°C), preventing the temperature of the spherical tank 200 from being transferred to the lubricating medium through the support member 3, which could lead to complete liquefaction of the lubricating medium. In this embodiment, the lubricating medium is grease.

[0052] The bottom of the support column 32 is fixedly connected to the top of the connector 31. The support column 32 passes upward through the limiting member 2 and extends above the limiting member 2. The spherical tank 200 is welded to the upper end of the support column 32. The diameter of the support column 32 is smaller than the diameter of the connector 31. The axis of the support column 32 passes through the center of the sphere of the connector 31, so that the gravity of the spherical tank 200 is applied to the center of the sphere of the connector 31, making the force on the connector 31 more balanced. Figure 3 In the illustrated embodiment, the support column 32 and the connector 31 are welded together. It should be noted that the support column 32 and the connector 31 can also be an integrally formed structure.

[0053] In one embodiment, the connector 31 is a solid sphere, thereby increasing its strength and preventing deformation under the weight of the spherical tank 200. It should be noted that, while ensuring sufficient strength, the connector 31 can also be a hollow sphere.

[0054] The support column 32 is a hollow rod and is made of high-strength steel, which reduces the weight and material usage of the support column 32 while ensuring its load-bearing strength, thereby reducing costs.

[0055] The side wall of the support column 32 is slidably connected to the limiting block 23 of the limiting member 2, so that the support column 32 can only swing along the direction of the line connecting the support member 3 and the center of the spherical tank 200 under the guidance of the limiting member 2, so as to avoid the center of the spherical tank 200 shifting and causing the stress at the connection between part of the support column 32 and the tank body to increase, thus affecting the stability.

[0056] In an alternative embodiment, the support member 3 may not include a connector, and its lower part may be directly rotatably connected to the base 1 via a pivot. The axis of the pivot is consistent with the width direction of the through hole 21, thereby enabling the support member 3 to form a swing arm structure and swing along the direction of the line connecting the support member 3 and the center of the spherical tank 200.

[0057] In the spherical tank device of this application, when the spherical tank 200 expands, its volume increases, i.e., its diameter increases. The spherical tank 200 pushes the upper end of the support member 3 to move away from the center of the spherical tank 200 along the line connecting the support member 3 and the center of the spherical tank 200. The lower end of the support member 3 swings relative to the base 1, achieving position compensation of the support member 3 for the spherical tank 200, while the position of the center of the spherical tank 200 remains unchanged. When the spherical tank 200 contracts, its diameter decreases. The spherical tank 200 pulls the upper end of the support member 3 to move closer to the center of the spherical tank 200 along the line connecting the support member 3 and the center of the spherical tank 200. The lower end of the support member 3 swings relative to the base 1, achieving position compensation of the support member 3 for the spherical tank 200, while the position of the center of the spherical tank 200 remains unchanged. When the support member 3 swings relative to the base 1, the connector 31 rotates relative to the base, and the pillar 32 slides relative to the limiting block 23 of the limiting member 2, so that the support member 3 swings accurately along the direction of the line connecting the support member 3 and the center of the sphere of the sphere tank 200. Moreover, under the action of the lubricating medium, the friction between the connector 31 and the base 1 is reduced, making the swing of the support member 3 relative to the base 1 smoother.

[0058] During the use of spherical tank equipment, it is usually necessary to inspect the working condition of the support member 3, the limiting member 2, and the lubricating medium of the spherical tank support structure 100. For example, the lubrication condition should be checked every six months, the grease should be replenished every year, the wear of the limiting block should be checked every two years, and the wear of the spherical contact pair should be fully disassembled and inspected every five years. In this application, the limiting member 2 is detachably connected to the base 1, which makes inspection more convenient.

[0059] The spherical tank support structure 100 of this application includes a base 1, a support member 3, and a limiting member 2. The base 1 is fixedly connected to the foundation structure 300. The support member 3 is connected to the base 1 and can rotate relative to the base 1. The upper part of the support member 3 extends upward and is fixedly connected to the spherical tank 200, thereby supporting the spherical tank 200. The limiting member 2 is connected to the base 1 and slidably connected to the support member 3 to guide the support member 3 to swing along the direction of the line connecting the support member 3 and the center of the spherical tank 200. The direction of the line connecting the support member 3 and the center of the spherical tank 200 is consistent with the direction of movement of the spherical tank 200 when it undergoes thermal expansion and contraction. This allows the support member 3 to swing relative to the base 1 to achieve position compensation when the spherical tank 200 undergoes thermal expansion and contraction, thereby avoiding severe stress concentration at the fixed connection between the support member 3 and the spherical tank 200, which could lead to fatigue cracks. It also avoids bending stress in the support member 3 during temperature alternation, which could affect the overall stability of the support system.

[0060] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A spherical tank support structure, characterized by, include: The base is used for fixed connection with the external foundation structure; A support member, connected to the base and rotatable relative to the base, the upper part of the support member extending upward and used to connect with the spherical tank to support the spherical tank; A limiting member is connected to the base and slidably connected to the support member to guide the support member to swing along the direction of the line connecting the support member and the center of the sphere.

2. The spherical tank support structure according to claim 1, characterized in that, The limiting member is provided with an elongated through hole for the support member to pass through, and the length direction of the through hole is consistent with the direction of the line connecting the support member and the center of the sphere of the sphere. The support member passes through the perforation and is movable along the length of the perforation.

3. The spherical tank support structure according to claim 2, characterized in that, The limiting member is provided with limiting blocks, which are located on both sides of the perforation width direction. The limiting blocks abut against the side wall of the support member to limit the displacement of the support member along the perforation width direction.

4. The spherical tank support structure according to claim 2, characterized in that, The support member has a movable gap with the sidewall along the length of the perforation, the width of which ranges from 1 to 5 mm; and / or The support member is capable of swinging at an angle of less than 0.25° relative to the base along the direction of the line connecting the support member and the center of the spherical tank.

5. The spherical tank support structure according to claim 1, characterized in that, The base is provided with a receiving cavity with an opening at the top; The support includes a connector and a support column. The connector is disposed in the receiving cavity and is rotatable relative to the base. The support column is fixed to the top of the connector and extends upward out of the base. The upper part of the support column is connected to the spherical tank. The limiting member is fixed to the top of the base and abuts against the connecting member to confine the connecting member within the receiving cavity; the limiting member is also slidably connected to the side wall of the support column to guide the support member to swing along the direction extending from the line connecting the support member and the center of the spherical tank.

6. The spherical tank support structure according to claim 5, characterized in that, The bottom surface of the connector is a downwardly convex arc shape, and the contour of the receiving cavity is adapted to the connector.

7. The spherical tank support structure according to claim 6, characterized in that, The connector is spherical, with a diameter larger than that of the support column, and the axis of the support column passes through the center of the sphere of the connector. The height of the receiving cavity is greater than half the height of the connector. The limiting member has an inwardly protruding limiting part, which is located above the receiving cavity and abuts against the upper part of the connector to restrict the connector within the receiving cavity.

8. The spherical tank support structure according to claim 7, characterized in that, There is a gap between the connector and the receiving cavity, and the gap is filled with a lubricating medium.

9. The spherical tank support structure according to claim 8, characterized in that, The gap has a radial dimension ranging from 0.2 to 2 mm. The amount of the lubricating medium filling the space formed by the gap is more than 70% of the volume; The dropping point of the lubricating medium is greater than 240°C.

10. The spherical tank support structure according to claim 1, characterized in that, The limiting component is detachably connected to the base.

11. A spherical tank apparatus, characterized by, The device includes a spherical tank and a plurality of spherical tank support structures as described in claim 1, wherein the plurality of spherical tank support structures are arranged at circumferential intervals around the spherical tank, and the upper end of the support member of the spherical tank support structure is fixedly connected to the spherical tank.

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