Adjustable supporting device for storage tank upside-down method wallboard construction

Abstract

The utility model discloses an adjustable supporting device for storage tank upside-down method wallboard construction, and mainly relates to the technical field of storage tank construction tools. Comprising a plurality of cylindrical bases arranged on a bottom plate of the storage tank in an annular array mode, a height-adjustable lifting plate is arranged on the upper sides of the bases, limiting blocks and positioning blocks are arranged at the top of the lifting plate, the distance between the positioning blocks and the limiting blocks is adjustable, the limiting blocks are located on the inner side of a wall plate of the storage tank, and the positioning blocks are located on the outer side of the wall plate of the storage tank; the device has good stability, can adjust the levelness and perpendicularity of the wall plate, ensures that the installation size deviation of the first circle of wall plate of the storage tank meets the drawing design requirement, lays a foundation for the next step of wall plate jacking operation, and ensures that the levelness and perpendicularity of the whole storage tank barrel body meet the requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tank construction tools, in particular to an adjustable support device for the construction of the wall panels of a storage tank by the reverse installation method. Background Technique

[0002] In the petrochemical smelting industry, the demand for various types of storage tanks is relatively large, and most of them are medium and large storage tanks with a volume exceeding 5000 cubic meters. During the construction process, the reverse installation method is generally used to install the outer cylinder of the storage tank. The construction process of the reverse installation method for large storage tanks is: bottom plate combination - top cover plate combination installation - construction of the first ring of wall panels... construction of the last ring of wall panels. Usually, the first ring of wall panels does not directly contact the bottom plate, and generally a temporary support device with a reserved distance of 400 - 600 mm is provided, which is convenient for personnel to enter and exit the storage tank and can adjust the installation size of the wall panels at the same time.

[0003] At present, two groups of I-beams are generally used to connect and fabricate an "I-shaped stool" support for the temporary support device for the installation of large storage tank wall panels. While the upper plane reference plate of the support is horizontally leveled, positioning plates and limit blocks are set up. After the wall panels are placed and slightly adjusted, the lifting operation can be carried out. However, in actual construction, the following problems often exist:

[0004] 1) The support stability of the "I-shaped stool" is insufficient, and the contact area between the lower plane of the support and the storage tank bottom plate is large. If there are gaps in the mutual contact or the bottom plate is deformed, it is impossible to ensure that the upper plane is at the same elevation in terms of levelness, and the horizontal elevation of the support device cannot be adjusted, resulting in the distortion of the circumferential weld position of the entire ring of wall panels. There are also relatively large hidden dangers during the lifting operation, and the installation quality of the overall cylinder cannot be guaranteed;

[0005] 2) After the "I-shaped stool" support is set in place, its horizontal and vertical dimensions cannot be adjusted. If the center base point of the storage tank is offset or the elevation of this device changes due to the welding deformation of the bottom plate, it is impossible to effectively and flexibly respond to and solve the problem. Content of the Utility Model

[0006] The purpose of the utility model is to solve the problems existing in the prior art, and provide an adjustable support device for the construction of the wall panels of a storage tank by the reverse installation method, which has good stability, can adjust the levelness and perpendicularity of the wall panels, ensure that the installation size deviation of the first ring of wall panels of the storage tank meets the requirements of the drawing design, lay a foundation for the next wall panel lifting operation, and ensure that the levelness and perpendicularity of the overall storage tank cylinder meet the requirements.

[0007] In order to achieve the above object, the utility model is realized through the following technical solutions:

[0008] An adjustable support device for the construction of the wall panels of a storage tank by the inverted installation method, comprising a plurality of cylindrical bases arranged in an annular array on the bottom plate of the storage tank. An elevating plate with adjustable height is provided on the upper side of the base. A limiting block and a positioning block are provided on the top of the elevating plate, and the distance between the positioning block and the limiting block is adjustable. The limiting block is located inside the storage tank wall panel, and the positioning block is located outside the storage tank wall panel.

[0009] Preferably, the outer shape of the base is frustum-shaped.

[0010] Preferably, a reference plate is provided on the top of the base. The reference plate is located below the elevating plate. A plurality of support screws are provided on the reference plate. At least three nuts are provided on the support screws. Through holes adapted to the support screws are provided on the elevating plate.

[0011] Preferably, a bracket is provided on one side of the limiting block. The limiting block and the bracket are both fixedly connected to the elevating plate. An adjusting screw is provided on the bracket. The adjusting screw horizontally penetrates through the bracket, and the end of the adjusting screw close to the limiting block is connected to the positioning block.

[0012] Preferably, an arc-shaped lining plate is provided between the storage tank wall panel and the limiting block.

[0013] Preferably, a plurality of reinforcing ribs are provided on the outer wall of the base.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The present utility model adopts a cylindrical support. The lower plane of the base is in a hollow state. The base is placed at the arc of the storage tank wall panel and is firmly spot-welded to the bottom plate of the storage tank. The horizontal elevation can be adjusted by adjusting the height of the elevating plate according to the actual situation on site. A plurality of bases are arranged at the bottom of the storage tank wall panel. By adjusting the heights of the elevating plates on different bases, it can be ensured that the storage tank wall panels are on the same elevation line. The distance between the positioning block and the limiting block is adjustable, which can not only lock the storage tank wall panel but also effectively correct the perpendicularity of the deformed part of the local storage tank wall panel.

[0016] 2. The present utility model has strong applicability. For storage tanks with different diameters and sizes, bases with reasonable adjustable gaps can be selected according to the diameter of the storage tank to determine the positions of the bases on the bottom plate of the storage tank, ensuring that the construction and installation of various storage tank wall panels are satisfied.

[0017] 3. The present utility model has high stability. Only the base contacts the bottom plate of the storage tank. After the reinforcing rib plate of the base is firmly spot-welded and the reference plate is aligned, the storage tank wall panel can be installed.

[0018] 4. The present utility model can reduce high-altitude operations. The bases are evenly distributed around the storage tank. The height of the reserved holes is 400 - 600 mm, which is convenient for construction personnel to enter and exit. It is convenient to carry tools, cable sheaths, etc., reduces high-altitude climbing operations, and eliminates potential safety hazards.

[0019] 5. The economic benefit of the present utility model is high. The present utility model is simple to manufacture, convenient to use, and can be reused. One set of the present utility model is prepared for each storage tank according to the diameter size and used in a cycle, reducing the cost of construction measure materials and significantly improving the economic benefit.

[0020] 6. The construction efficiency of the present utility model is high. Compared with the traditional method of adjusting the installation size of the wall plate by means of auxiliary tools or external force, the present utility model can play its own role, and the construction of the storage tank wall plate can be completed by reducing the external force or auxiliary tools, which can greatly improve the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural view of the present utility model;

[0022] Figure 2 is a top view of the present utility model;

[0023] Figure 3 is a schematic view of the use state of the present utility model;

[0024] Figure 4 is a top view of the use state of the present utility model.

[0025] Reference numerals in the drawings: 1, storage tank bottom plate; 2, base; 3, lifting plate; 4, limit block; 5, positioning block; 6, storage tank wall plate; 7, bracket; 8, adjusting screw; 9, arc lining plate; 21, reference plate; 22, support screw; 23, nut; 24, reinforcing rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.

[0027] Embodiment: As shown in the attached Figure 1-2 figures, the present utility model relates to an adjustable support device for the construction of the wall plate of a storage tank by the inverted installation method, including a plurality of cylindrical bases 2 arranged in a circular array on the storage tank bottom plate 1. The upper side of the base 2 is provided with a lifting plate 3 with adjustable height. The top of the lifting plate 3 is provided with a limit block 4 and a positioning block 5, and the distance between the positioning block 5 and the limit block 4 is adjustable. The limit block 4 is located inside the storage tank wall plate 6, and the positioning block 5 is located outside the storage tank wall plate 6, and the storage tank wall plate 6 is clamped between the positioning block 5 and the limit block 4.

[0028] Preferably, in order to improve the stability of the base support, the outer shape of the base 2 is frustum-shaped, with the outer shape of the base 2 being a frustum with a larger bottom and a smaller top, which can enhance the stability of the support.

[0029] A hydraulic cylinder can be installed between the base 2 and the lifting plate 3 as a height adjustment mechanism for the lifting plate 3.

[0030] Preferably, in order to reduce costs, a reference plate 21 is horizontally welded to the top of the base 2. The reference plate 21 is located below the lifting plate 3. A number of support screws 22 are provided on the reference plate 21. The number of support screws 22 is arranged in a circular array centered on the center of the reference plate 21. At least three nuts 23 are provided on the support screws 22. Through holes adapted to the support screws 22 are provided on the lifting plate 3. At least one nut 23 is arranged on both the upper and lower sides of the lifting plate 3, and at least one nut 23 is arranged on the upper side of the reference plate 21. The reference plate 21 is locked between the screw head and the nut 23, and the lifting plate 3 is locked between the two nuts 23. The height of the lifting plate 3 can be adjusted by adjusting the position between the two nuts 23 that lock the lifting plate 3.

[0031] The limit block 4 can be welded to the lifting plate 3. A hydraulic cylinder or other linear translation mechanism is horizontally arranged on one side of the limit block 4. The positioning block 5 is installed at one end of the hydraulic cylinder or other translation mechanism close to the limit block 4. The distance between the positioning block 5 and the limit block 4 is adjusted by the hydraulic cylinder or other translation mechanism.

[0032] Preferably, in order to reduce costs, a bracket 7 is provided on one side of the limit block 4. The bottom ends of the limit block 4 and the bracket 7 are both welded to the lifting plate 3. An adjusting screw 8 and a screw hole adapted to the adjusting screw 8 are horizontally provided on the bracket 7. The adjusting screw 8 horizontally penetrates the bracket 7, and the end of the adjusting screw 8 close to the limit block 4 is connected to the positioning block 5. The positioning block 5 can be directly welded to the end of the adjusting screw 8, or the positioning block 5 and the adjusting screw 8 can also be rotatably connected.

[0033] Preferably, in order to improve the firmness of locking the storage tank wall plate, an arc lining plate 9 is provided between the storage tank wall plate 6 and the limit block 4. The arc lining plate 9 is in line contact with the inner wall of the storage tank wall plate 6. Different arc lining plates 9 can be placed to adapt to storage tank wall plates 6 with different outer diameters.

[0034] Preferably, in order to improve the stability of the base structure, a number of reinforcing ribs 24 are welded to the outer wall of the base 2.

[0035] As attached Figure 3-4, when the utility model is in use, first select the base 2 according to the diameter of the storage tank and the required height. The bases 2 are placed at equal intervals (3 - 4 meters) at the scribed positions of the bottom plate 1 of the storage tank, and the stiffening rib plates around the circumference of the base 2 are spot-welded firmly to ensure the stability and reliability of the entire ring of support devices. Observe the lifting plates 3 on each base 2 with the center reference point of the storage tank as the benchmark, and adjust the support screws 22 below the lifting plates 3 to control the elevation of the lifting plates 3, forcing the lifting plates 3 of the entire ring of support devices to be on the same horizontal line. Lift and place the storage tank wall plate 6 on the support device, initially spot-weld and adjust the verticality, and force the storage tank wall plate 6 to be at the scribed position of the reference plate and maintain a vertical state by adjusting the adjusting screws 8. Recheck the horizontal and vertical deviations of the entire ring of storage tank wall plates 6. If they meet the requirements of the drawing specification design, the lifting operation of the storage tank wall plates 6 can be carried out. Repeat this process from the first ring of wall plates until the last second ring of wall plates is installed. Before installing the last ring of wall plates, remove the support device, and weld the internal and external corner joints of the storage tank wall plates 6 and the bottom plate 1 of the storage tank firmly. The support device is used for the installation of the next storage tank.

Claims

1. An adjustable support device for tank inversion wall panel construction, characterized in that: The invention comprises a plurality of cylindrical bases (2) arranged in a circular array on a bottom plate (1) of a storage tank, a height-adjustable lifting plate (3) being provided on the upper side of the base (2), a limit block (4) and a positioning block (5) being provided on the top of the lifting plate (3), and the distance between the positioning block (5) and the limit block (4) being adjustable, the limit block (4) being located on the inner side of a storage tank wall plate (6), and the positioning block (5) being located on the outer side of the storage tank wall plate (6).

2. The adjustable support device for tank inversion wall panel construction according to claim 1 is characterized by: The base (2) has a truncated cone shape.

3. The adjustable support device for tank inversion wall panel construction according to claim 1 is characterized by: A reference plate (21) is provided on the top of the base (2), and the reference plate (21) is located on the lower side of the lifting plate (3). A plurality of supporting screws (22) are provided on the reference plate (21), and at least three nuts (23) are provided on the supporting screws (22). The lifting plate (3) is provided with through holes adapted to the supporting screws (22).

4. The adjustable support device for tank inversion wall panel construction according to claim 1 is characterized by: A bracket (7) is provided on one side of the limit block (4); the limit block (4) and the bracket (7) are both fixedly connected to the lifting plate (3); an adjusting screw (8) is provided on the bracket (7); the adjusting screw (8) passes through the bracket (7) horizontally; and one end of the adjusting screw (8) close to the limit block (4) is connected to the positioning block (5).

5. The adjustable support device for tank inversion wall panel construction according to claim 1 is characterized by: A circular arc lining plate (9) is provided between the tank wall plate (6) and the limiting block (4).

6. The adjustable support device for tank inversion wall panel construction according to claim 1 is characterized by: A plurality of reinforcing ribs (24) are provided on the outer wall of the base (2).

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