Lifting device for mounting large-volume storage tank

Abstract

The utility model discloses a lifting device for installing a large-volume storage tank, which comprises a hoop body, an expansion ring and a plurality of hoisting mechanisms, the hoisting mechanisms are arranged at intervals around the center of a foundation for supporting the storage tank, each hoisting mechanism comprises a support frame, a lifting hoisting assembly and a clamping assembly, the support frame is fixed on the foundation, the lifting hoisting assembly is arranged on the support frame, and the clamping assembly is arranged on the support frame. The clamping assemblies are connected with the lifting assembly and connected with the hoop body in a clamped mode, the clamping assemblies of all the lifting mechanisms are arranged around the center of the hoop body at intervals, and the expansion rings are embedded in the inner side of the hoop body and used for expanding after being filled with media so as to tightly hold the tank wall of the storage tank. According to the lifting device for mounting the large-volume storage tank, the mounting quality and the mounting efficiency are improved, the occupied space is small, the safety is high, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a lifting device for installing a large-volume storage tank. Background Art

[0002] At present, large-volume storage tanks (generally with a diameter of 37m and a height of 18.5m) generally include a tank bottom plate, multi-layer tank walls, a tank top and a top wall plate. Most of them are installed using the inverted installation method, that is, after the tank bottom plate is installed on the foundation, the tank top and top wall plates are installed first with the tank bottom plate as the reference plane. After the tank top and top wall plates are assembled and welded, the tank wall is lifted using a lifting device. Then, the tank wall is assembled and welded layer by layer from top to bottom under the tank top (tank top and top wall plates) until it is connected to the tank bottom plate. The lifting equipment used for the installation of large-volume storage tank groups is generally a crane, which has the following shortcomings:

[0003] 1) During the installation process, it is easy for the center of the tank wall to deviate significantly from the center of the tank bottom plate, which will cause a lot of inconvenience to the subsequent construction. Usually, during the installation of the tank, the method of controlling the center deviation of the tank wall is to rely on the frequent use of measuring instruments to control the concentricity of each layer of the tank wall during the installation process to meet the requirements of the center deviation of the tank body, which seriously affects the construction efficiency of the tank installation;

[0004] 2) The lifting operation requires a large working space and a flat ground to ensure that the crane can perform the lifting operation safely;

[0005] 3) As large storage tanks are usually heavy, using a crane to lift them poses a significant safety hazard and can easily lead to accidents such as tipping or falling.

[0006] 4) Usually requires a high investment of costs, including crane rental fees, labor costs, safety equipment costs, etc. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a lifting device for installing large-volume storage tanks, which improves installation quality and efficiency, occupies little space, is highly safe and has low cost.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A lifting device for installing a large-volume storage tank includes a hoop body, an expansion ring and multiple lifting mechanisms. The lifting mechanisms are arranged at intervals around the center of a foundation for supporting the storage tank. The lifting mechanism includes a support frame, a lifting and hoisting assembly and a clamping assembly. The support frame is fixed on the foundation. The lifting and hoisting assembly is arranged on the support frame. The clamping assembly is connected to the lifting and hoisting assembly and clamped to the hoop body. The clamping assemblies of each lifting mechanism are arranged at intervals around the center of the hoop body. The expansion ring is embedded in the inner side or outer side of the hoop body and is used to expand after being filled with a medium to hug or support the tank wall of the storage tank.

[0010] As a further improvement of the above technical solution:

[0011] The clamping assembly includes an inlay and a clamping block. The inlay is connected to the lifting and hoisting assembly. One side of the inlay is provided with an inlay groove. The hoop body is inlaid in the inlay groove. The clamping block is clamped with the hoop body.

[0012] The inlay groove passes through to the bottom surface of the inlay block, and the clamping block is detachably arranged at the bottom of the inlay groove.

[0013] A lower convex limiting portion is provided on the top wall of the inlay groove, an upper convex limiting portion is provided on the top of the clamping block, an upper limit groove is provided on the top surface of the hoop body, and a lower limit groove is provided on the bottom surface, the lower convex limiting portion is clamped in the upper limit groove, and the upper convex limiting portion is clamped in the lower limit groove.

[0014] The upper limit groove and the lower limit groove are both annular grooves concentric with the hoop body.

[0015] The clamping block and the insert are fixedly connected via a locking piece.

[0016] The locking piece is a locking screw.

[0017] The insert is provided with a connecting hole, and the lifting and hoisting assembly is connected to the connecting hole.

[0018] The lifting and hoisting component is an electric hoist.

[0019] The support frame includes a base, a vertical pole, a cantilevered beam and a diagonal brace. The base is supported on the foundation, the vertical pole is fixed on the base, the cantilevered beam is fixed to the top of the vertical pole and cantilevers toward or away from the center of the foundation, the lifting and hoisting assembly is arranged at the cantilevered end of the cantilevered beam, and the diagonal brace is fixed between the base and the vertical pole.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] The utility model relates to a lifting device for installing large-volume storage tanks. The process of lifting the tank wall is as follows: the tank wall of the storage tank is placed on the foundation so that the center of the tank wall coincides with the center of the foundation; each lifting and hoisting assembly drives the clamping assembly to descend so that the expansion ring on the clamping assembly is sleeved on the outer circumference of the tank wall; then, a medium is filled into the expansion ring to expand the expansion ring to hold the tank wall tightly; then, each lifting and hoisting assembly rises synchronously to lift the tank wall to the installation height; after the tank wall is completely installed, the medium in the expansion ring is released so that the medium can be filled again to hold and lift another tank wall. On the one hand, lifting the tank wall of the storage tank by the synchronous movement of each lifting and hoisting assembly is conducive to preventing the tank wall from swinging during the lifting process, so that it is not easy for the center of the tank wall to deviate greatly from the center of the foundation, thereby improving the installation quality and efficiency; on the other hand, compared with a crane, it occupies less space, has high safety, and is low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the first embodiment of the utility model of the lifting device for installing a large-volume storage tank.

[0023] Figure 2 It is a schematic diagram of the main structure of the clamping assembly of the lifting device for installing a large-volume storage tank of the utility model.

[0024] Figure 3 This is a schematic diagram of the use structure of the first embodiment of the utility model of the lifting device for installing a large-volume storage tank.

[0025] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0026] Figure 5 This is a schematic diagram of the main structure of the second embodiment of the utility model of the lifting device for installing a large-volume storage tank.

[0027] Figure 6 This is a schematic diagram of the use structure of the second embodiment of the utility model of the lifting device for installing a large-volume storage tank.

[0028] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure at point B in the middle.

[0029] The numbers in the figure represent:

[0030] 1. Hoop body; 11. Upper limit groove; 12. Lower limit groove; 2. Expansion ring; 3. Lifting mechanism; 31. Support frame; 311. Base; 312. Vertical pole; 313. Cantilever beam; 314. Diagonal brace; 32. Lifting and lifting assembly; 33. Clamping assembly; 331. Insert; 332. Clamp; 333. Locking piece; 334. Insert groove; 335. Lower convex limit part; 336. Upper convex limit part; 4. Foundation; 5. Connecting hole; 6. Storage tank; 61. Tank wall. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0034] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," "connect," "fix," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] Example 1:

[0036] Figures 1 to 4An embodiment of the lifting device for installing a large-volume storage tank of the utility model is shown. The lifting device for installing a large-volume storage tank of this embodiment includes a hoop body 1, an expansion ring 2 and multiple lifting mechanisms 3. The lifting mechanisms 3 are arranged at intervals around the center of the foundation 4 for supporting the storage tank 6. The lifting mechanisms 3 include a support frame 31, a lifting and lifting assembly 32 and a clamping assembly 33. The support frame 31 is fixed on the foundation 4, the lifting and lifting assembly 32 is arranged on the support frame 31, the clamping assembly 33 is connected to the lifting and lifting assembly 32 and clamped with the hoop body 1, the clamping assemblies 33 of each lifting mechanism 3 are arranged at intervals around the center of the hoop body 1, the expansion ring 2 is embedded in the outside of the hoop body 1, and is used to expand after being filled with medium to tighten the tank wall 61 of the storage tank 6.

[0037] The process of hoisting the tank wall 61 of the storage tank 6 is as follows: the tank wall 61 of the storage tank 6 is placed on the foundation 4 (specifically, on the bottom plate of the tank body on the foundation 4) so ​​that the center of the tank wall 61 coincides with the center of the foundation 4; each lifting and hoisting assembly 32 drives the clamping assembly 33 to descend so that the expansion ring 2 on the clamping assembly 33 is located inside the tank wall 61; then, a medium is filled into the expansion ring 2 to expand the expansion ring 2 to tighten the tank wall 61, and then, each lifting and hoisting assembly 32 rises synchronously to lift the tank wall 61 to the installation height; after the tank wall 61 is completely installed, the medium in the expansion ring 2 is released to prepare for refilling the medium to tighten and lift another tank wall 61. First, lifting the tank wall 61 of the storage tank 6 by the synchronous movement of each lifting and hoisting assembly 32 is conducive to preventing the tank wall 61 from swinging during the lifting process, so that it is less likely to have a large deviation between the center of the tank wall 61 and the center of the foundation 4, thereby improving the installation quality and efficiency; second, compared with a crane, it occupies less space, has high safety, and is low cost.

[0038] The expansion ring 2 is a conventional component available on the market, and is used to tighten and loosen the tank wall 61 by filling and releasing a medium.

[0039] Furthermore, in this embodiment, the clamping assembly 33 includes an insert 331 and a clamping block 332. The insert 331 is connected to the lifting assembly 32. A slot 334 is provided on one side of the insert 331, into which the hoop body 1 is inserted. The clamping block 332 is clamped to the hoop body 1. The lifting assembly 32 drives the insert 331 upward to lift the tank wall 61. This clamping assembly 33 has a simple structure.

[0040] Furthermore, if Figure 4 As shown, in this embodiment, the inlay groove 334 extends through the bottom surface of the insert 331, and the clamping block 332 is detachably disposed at the bottom of the inlay groove 334. Thus, after the clamping block 332 is removed, the insert 331 can be removed from the hoop body 1 by upward movement. That is, the inlay groove 334 extends through the bottom surface of the insert 331 to form an inlet and outlet of the hoop body 1, facilitating the connection and disconnection of the clamping assembly 33 and the hoop body 1.

[0041] Furthermore, if Figure 4 As shown, in this embodiment, a lower convex limiting portion 335 is provided on the top wall of the inlay groove 334, an upper convex limiting portion 336 is provided on the top of the clamping block 332, an upper limit groove 11 is provided on the top surface of the hoop body 1, and a lower limit groove 12 is provided on the bottom surface, the lower convex limiting portion 335 is clamped in the upper limit groove 11, and the upper convex limiting portion 336 is clamped in the lower limit groove 12. The hoop body 1 is prevented from falling out of the inlay groove 334 by the engagement of the lower convex limiting portion 335 with the upper limit groove 11 and the engagement of the upper convex limiting portion 336 with the lower limit groove 12.

[0042] Furthermore, in this embodiment, the upper limit groove 11 and the lower limit groove 12 are both annular grooves concentric with the hoop body 1 , which facilitates processing and assembly and disassembly of each clamping assembly 33 .

[0043] Furthermore, if Figure 2 and Figure 4 As shown, in this embodiment, the clamping block 332 and the insert 331 are fixedly connected by a locking member 333. The structure is simple and easy to assemble and disassemble.

[0044] Furthermore, in this embodiment, the locking member 333 is a locking screw.

[0045] Furthermore, in this embodiment, a connecting hole 5 is provided on the insert 331 , and the lifting and hoisting assembly 32 is connected to the connecting hole 5 , which makes the connection convenient.

[0046] Furthermore, in this embodiment, the lifting and hoisting assembly 32 is an electric hoist.

[0047] Furthermore, if Figure 1 and Figure 3 As shown, in this embodiment, the support frame 31 includes a base 311, uprights 312, overhanging beams 313, and diagonal braces 314. The base 311 is supported on the foundation 4 (specifically, on the tank bottom plate on the foundation 4). The uprights 312 are fixed to the base 311. The overhanging beams 313 are fixed to the tops of the uprights 312 and overhang away from the center of the foundation 4. The lifting and hoisting assembly 32 is located at the overhanging end of the overhanging beams 313. The diagonal braces 314 are fixed between the base 311 and the uprights 312. The base 311 can be secured by a fixing mechanism to prevent shaking during lifting. The electric hoist is hooked into the connection hole 5.

[0048] Preferably, each lifting mechanism 3 is evenly spaced around the center of the foundation 4 supporting the storage tank 6, which improves the stability of the lifting and further helps to avoid eccentric installation. Preferably, the clamping components 33 of each lifting mechanism 3 are evenly spaced around the center of the hoop body 1.

[0049] Example 2:

[0050] Figures 5 to 7An embodiment of the lifting device for installing a large-volume storage tank of the utility model is shown. The lifting device for installing a large-volume storage tank of this embodiment includes a hoop body 1, an expansion ring 2 and multiple lifting mechanisms 3. The lifting mechanisms 3 are arranged at intervals around the center of the foundation 4 for supporting the storage tank 6. The lifting mechanisms 3 include a support frame 31, a lifting and lifting assembly 32 and a clamping assembly 33. The support frame 31 is fixed on the foundation 4, the lifting and lifting assembly 32 is arranged on the support frame 31, the clamping assembly 33 is connected to the lifting and lifting assembly 32 and clamped with the hoop body 1, and the clamping assemblies 33 of each lifting mechanism 3 are arranged at intervals around the center of the hoop body 1. The expansion ring 2 is embedded in the inner side of the hoop body 1 and is used to expand after being filled with medium to hug the tank wall 61 of the storage tank 6.

[0051] The process of hoisting the tank wall 61 of the storage tank 6 is as follows: the tank wall 61 of the storage tank 6 is placed on the foundation 4 so that the center of the tank wall 61 coincides with the center of the foundation 4; each lifting and hoisting assembly 32 drives the clamping assembly 33 to descend so that the expansion ring 2 on the clamping assembly 33 is sleeved on the outer circumference of the tank wall 61; then, a medium is filled into the expansion ring 2 to expand the expansion ring 2 to hold the tank wall 61 tightly; then, each lifting and hoisting assembly 32 rises synchronously to lift the tank wall 61 to the installation height; after the tank wall 61 is completely installed, the medium in the expansion ring 2 is released so that it can be filled again to hold and lift another tank wall 61. Firstly, lifting the tank wall 61 of the storage tank 6 by the synchronous movement of each lifting and hoisting assembly 32 is conducive to preventing the tank wall 61 from swinging during the lifting process, so that it is less likely to have a large deviation between the center of the tank wall 61 and the center of the foundation 4, thereby improving the installation quality and efficiency; secondly, compared with a crane, it occupies less space, has high safety, and is low cost.

[0052] The expansion ring 2 is a conventional component available on the market, and is used to tighten and loosen the tank wall 61 by filling and releasing a medium.

[0053] Furthermore, in this embodiment, the clamping assembly 33 includes an insert 331 and a clamping block 332. The insert 331 is connected to the lifting assembly 32. A slot 334 is provided on one side of the insert 331, into which the hoop body 1 is inserted. The clamping block 332 is clamped to the hoop body 1. The lifting assembly 32 drives the insert 331 upward to lift the tank wall 61. This clamping assembly 33 has a simple structure.

[0054] Furthermore, if Figure 4 As shown, in this embodiment, the inlay groove 334 extends through the bottom surface of the insert 331, and the clamping block 332 is detachably disposed at the bottom of the inlay groove 334. Thus, after the clamping block 332 is removed, the insert 331 can be removed from the hoop body 1 by upward movement. That is, the inlay groove 334 extends through the bottom surface of the insert 331 to form an inlet and outlet of the hoop body 1, facilitating the connection and disconnection of the clamping assembly 33 and the hoop body 1.

[0055] Furthermore, if Figure 4As shown, in this embodiment, a lower convex limiting portion 335 is provided on the top wall of the inlay groove 334, an upper convex limiting portion 336 is provided on the top of the clamping block 332, an upper limit groove 11 is provided on the top surface of the hoop body 1, and a lower limit groove 12 is provided on the bottom surface, the lower convex limiting portion 335 is clamped in the upper limit groove 11, and the upper convex limiting portion 336 is clamped in the lower limit groove 12. The hoop body 1 is prevented from falling out of the inlay groove 334 by the engagement of the lower convex limiting portion 335 with the upper limit groove 11 and the engagement of the upper convex limiting portion 336 with the lower limit groove 12.

[0056] Furthermore, in this embodiment, the upper limit groove 11 and the lower limit groove 12 are both annular grooves concentric with the hoop body 1 , which facilitates processing and assembly and disassembly of each clamping assembly 33 .

[0057] Furthermore, if Figure 2 and Figure 4 As shown, in this embodiment, the clamping block 332 and the insert 331 are fixedly connected by a locking member 333. The structure is simple and easy to assemble and disassemble.

[0058] Furthermore, in this embodiment, the locking member 333 is a locking screw.

[0059] Furthermore, in this embodiment, a connecting hole 5 is provided on the insert 331 , and the lifting and hoisting assembly 32 is connected to the connecting hole 5 , which makes the connection convenient.

[0060] Furthermore, in this embodiment, the lifting and hoisting assembly 32 is an electric hoist.

[0061] Furthermore, if Figure 1 and Figure 3 As shown, in this embodiment, the support frame 31 includes a base 311, uprights 312, overhanging beams 313, and diagonal braces 314. The base 311 is supported on the foundation 4, the uprights 312 are fixed to the base 311, the overhanging beams 313 are fixed to the tops of the uprights 312 and overhang toward the center of the foundation 4, the lifting and hoisting assembly 32 is located at the overhanging end of the overhanging beams 313, and the diagonal braces 314 are fixed between the base 311 and the uprights 312. The base 311 can be fixed to the foundation 4 by a fixing mechanism to prevent shaking during lifting. The electric hoist is hooked into the connection hole 5.

[0062] Preferably, each lifting mechanism 3 is evenly spaced around the center of the foundation 4 supporting the storage tank 6, which improves the stability of the lifting and further helps to avoid eccentric installation. Preferably, the clamping components 33 of each lifting mechanism 3 are evenly spaced around the center of the hoop body 1.

[0063] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the content of the present invention and are based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A lifting device for installing a large storage tank, characterized by: The invention comprises a hoop body (1), an expansion ring (2) and a plurality of lifting mechanisms (3), each of the lifting mechanisms (3) being arranged at intervals around the center of a foundation (4) for supporting a storage tank (6), the lifting mechanism (3) comprising a support frame (31), a lifting and hoisting assembly (32) and a clamping assembly (33), the support frame (31) being fixed on the foundation (4), the lifting and hoisting assembly (32) being arranged on the support frame (31), the clamping assembly (33) being connected to the lifting and hoisting assembly (32) and being clamped to the hoop body (1), the clamping assembly (33) of each of the lifting mechanisms (3) being arranged at intervals around the center of the hoop body (1), the expansion ring (2) being embedded in the inner side or the outer side of the hoop body (1) and being used for expanding after being filled with a medium to hug or support the tank wall (61) of the storage tank (6).

2. The lifting device for installing a large-volume storage tank according to claim 1, characterized in that: The clamping assembly (33) comprises an insert (331) and a clamping block (332); the insert (331) is connected to the lifting and hoisting assembly (32); a mounting groove (334) is provided on one side of the insert (331); the hoop body (1) is embedded in the mounting groove (334); and the clamping block (332) is clamped to the hoop body (1).

3. The lifting device for installing a large storage tank according to claim 2, characterized in that: The inlay groove (334) passes through the bottom surface of the inlay block (331), and the clamping block (332) is detachably arranged at the bottom of the inlay groove (334).

4. The lifting device for installing a large storage tank according to claim 3, characterized in that: A lower convex limiting portion (335) is provided on the top wall of the inlay groove (334), an upper convex limiting portion (336) is provided on the top of the clamping block (332), an upper limit groove (11) is provided on the top surface of the hoop body (1), and a lower limit groove (12) is provided on the bottom surface, the lower convex limiting portion (335) is clamped in the upper limit groove (11), and the upper convex limiting portion (336) is clamped in the lower limit groove (12).

5. The lifting device for installing a large storage tank according to claim 4, characterized in that: The upper limit groove (11) and the lower limit groove (12) are both annular grooves concentric with the hoop body (1).

6. The lifting device for installing a large storage tank according to claim 4, characterized in that: The clamping block (332) and the insert (331) are fixedly connected via a locking member (333).

7. The lifting device for installing a large storage tank according to claim 6, characterized in that: The locking member (333) is a locking screw.

8. The lifting device for installing a large storage tank according to claim 2, characterized in that: The insert (331) is provided with a connecting hole (5), and the lifting assembly (32) is connected to the connecting hole (5).

9. The lifting device for installing a large storage tank according to any one of claims 1 to 8, characterized in that: The lifting and hoisting assembly (32) is an electric hoist.

10. The lifting device for installing a large storage tank according to any one of claims 1 to 8, characterized in that: The support frame (31) comprises a base (311), a vertical pole (312), a cantilever beam (313) and a diagonal brace (314); the base (311) is supported on a foundation (4); the vertical pole (312) is fixed on the base (311); the cantilever beam (313) is fixed to the top end of the vertical pole (312) and cantilevers toward or away from the center of the foundation (4); the lifting and hoisting assembly (32) is provided at the cantilevered end of the cantilever beam (313); and the diagonal brace (314) is fixed between the base (311) and the vertical pole (312).

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