Movable support frame for assembling dome of large LNG (Liquefied Natural Gas) low-temperature storage tank

Abstract

The utility model discloses a movable support frame for assembling a dome of a large LNG (Liquefied Natural Gas) low-temperature storage tank, which comprises an operation platform, a central upright post, a middle upright post and a side post, and the positions of the central upright post, the middle upright post and the side post are arranged on the same straight line; the center stand column is of a vertical frame structure formed by splicing profile steel, a top support is arranged above the center stand column and used for connecting and fixing the dome, the operation platform is arranged above the center stand column, a first connecting support is arranged above the middle stand column, a second connecting support is arranged above the side column, the middle stand column and the side column are of a sleeve structure, and the middle stand column and the side column are of a sleeve structure. Hydraulic cylinders are arranged on the lower portions of the interiors of the middle stand columns and the side columns, and by means of the supporting frame, the dome can be efficiently and accurately assembled; the whole device can be detached and reused, and waste of tool materials is greatly reduced; the elevation of the whole device and the distance among the center stand column, the middle stand columns and the side columns can be adjusted, and the device is suitable for assembling domes of different specifications and wide in application range.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building construction, specifically relates to a movable support frame for large LNG low-temperature storage tank dome assembly. BACKGROUND

[0002] With the rapid development of LNG industry and the continuous progress of technology, the demand for large LNG low-temperature storage tanks will continue to increase. The current large LNG low-temperature storage tank projects include 270,000 m³, 220,000 m³, 200,000 m³ and other specifications. In the construction of large LNG storage tanks, a fixed support system is usually used in the dome manufacturing process, and corresponding support frames are used for fixed specifications. The previous support frames were disassembled and cut after the completion of the previous single project, and the tooling lost the function of reuse, causing waste of materials and resources. UTILITY MODEL CONTENTS

[0003] To solve the above problems, the utility model discloses a movable support frame for large LNG low-temperature storage tank dome assembly, which is simple in structure, convenient to disassemble and adjust in structure elevation, reduces construction cost and has wide application range.

[0004] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0005] A movable support frame for large LNG low-temperature storage tank dome assembly, comprising an operation platform, a center column, an intermediate column and a side column,

[0006] The center column is a vertical frame structure spliced from section steel, the side surface of the center column is provided with a ladder, a top support is arranged above the center column for connecting and fixing the dome, and a base one is arranged below the center column;

[0007] The operation platform is arranged above the center column, and the operation platform comprises a circular platform and a guardrail, the ladder is connected with the circular platform above the ladder,

[0008] The intermediate column is arranged outside the center column, a connecting support one is arranged above the intermediate column, and a base two is arranged below the intermediate column;

[0009] The side column is arranged outside the intermediate column, a connecting support two is arranged above the side column, and a base three is arranged below the side column;

[0010] The positions of the center column, the intermediate column and the side column are arranged on a straight line;

[0011] The intermediate column and the side column are in a sleeve structure, and a hydraulic cylinder is arranged inside and below the intermediate column and the side column.

[0012] As an supplement of the utility model, the center stand is by six steel pipes vertical even distribution, set up cross bracing and inclined bracing between two adjacent steel pipes, set up inclined pull rod outside each steel pipe.

[0013] As an supplement of the utility model, the base one, base two, base three are provided with mounting holes.

[0014] As an supplement of the utility model, the top support includes cylindrical base body and multiple limit seats, the base body is fixed above the center stand by bolt, multiple limit seats are evenly arranged above the base body, the limit seat is composed of two limit plates one, the two limit plates one are vertically arranged above the base body, and the side surface of the limit plate one has connecting hole one.

[0015] As an supplement of the utility model, the connecting support one is composed of two limit plates two, the two limit plates two are vertically arranged above the middle stand by bolt, the top of the limit plate two is semicircular, and the side surface of the limit plate two has connecting hole two.

[0016] As an supplement of the utility model, the connecting support two has the same structure with the connecting support one.

[0017] As an supplement of the utility model, the guardrail is provided with access door.

[0018] As an supplement of the utility model, the middle stand and the side column are respectively composed of outer sleeve and inner sleeve, the bottom of the inner sleeve is connected with the telescopic rod of the hydraulic cylinder, and the upper edge of the outer sleeve is inwardly contracted to form a limit edge.

[0019] The utility model has the advantages that:

[0020] (1) the support frame can efficiently and accurately assemble the dome.

[0021] (2) the whole device can be disassembled and reused, greatly reducing the waste of tooling materials.

[0022] (3) the elevation of the whole device and the distance between the center stand, the middle stand and the side column can be adjusted, which is suitable for assembling domes of different specifications and has wide application range. DRAWINGS

[0023] Figure 1 The utility model discloses a movable support frame working schematic diagram.

[0024] Figure 2 The utility model discloses a center stand schematic diagram.

[0025] Figure 3 The utility model discloses a top support schematic diagram.

[0026] Figure 4 The base two plan view.

[0027] Figure 5 The intermediate column schematic view.

[0028] Figure 6 The edge column schematic view.

[0029] List of figure mark:

[0030] 1, operation platform, 2, center column, 3, intermediate column, 4, edge column, 5, dome block, 6, ladder, 7, top support, 8, base one, 9, steel pipe, 10, cross brace, 11, inclined brace, 12, inclined pull rod, 13, platform, 14, guardrail, 15, base two, 16, base three, 17, mounting hole, 18, base body, 19, limit plate one, 20, connecting hole one, 21, connecting support one, 22, connecting support two, 23, limit plate two, 24, connecting hole two, 27, inner sleeve pipe, 28, outer sleeve pipe, 29, hydraulic cylinder, 30, limit edge. DETAILED DESCRIPTION

[0031] The utility model is further illustrated below in combination with the drawings and specific embodiments, and it should be understood that the following specific embodiments are only used for illustrating the utility model and not for limiting the scope of the utility model.

[0032] As Figure 1 The utility model discloses a movable support frame for large LNG low-temperature storage tank dome assembly, including operation platform 1, center column 2, intermediate column 3 and edge column 4, the position of center column 2, intermediate column 3 and edge column 4 is set on a straight line, and when installing, dome block is placed on the top of the three.

[0033] As Figure 2 The center column 2 is the vertical frame structure that is spliced by sectional steel, and specifically is six steel pipes 9 that are uniformly distributed along the circumference, and the steel pipe specification is Φ273x12 for bearing the vertical load of the dome.The operation platform 1 is arranged at the top of the center column 2, the cross brace 10 and the inclined brace 11 are arranged between the adjacent two steel pipes 9 to ensure stability, the inclined pull rod 12 is arranged on the radial direction of each steel pipe, the center column 2 is balanced and stable, the ladder 6 is arranged on the side of the center column 2, the top support 7 is arranged above the center column 2, the base one 8 is fixed on the ground below the center column 2, the embedded part anchor bolt is arranged on the reinforced concrete foundation, the anchor bolt seat is arranged at the bottom of the column, the column is fixed on the anchor bolt, and the stability of the column in the horizontal direction is ensured.

[0034] The single cross brace and the single inclined brace are set as single components with uniform size, facilitating installation and adaptation. The cross brace is made of 14a channel steel, and the inclined brace is made of 75*75*8 angle steel. A 12mm connecting plate is welded on the column, and the cross brace and the inclined brace are fastened with the connecting plate by high-strength bolts. The inclined pull rod is also fastened in the same way.

[0035] As shown in Figure 3 The top support 7 is arranged above the center column 2 for connecting and fixing the dome, facilitating adjustment and replacement of the dome of different specifications of large LNG cryogenic tanks with different heights. The column and the top support are connected by high-strength bolts and can be detached. The outer periphery of the top support 7 is the operation platform 1. The top support 7 includes a cylindrical base body 18 and a plurality of limiting seats. The base body is fixed on the center column by bolts. The plurality of limiting seats are evenly arranged above the base body. The limiting seat is composed of two limiting plates 19. The two limiting plates are vertically arranged above the base body. The limiting plate 19 has a connecting hole 20 on the side. A vertical plate is welded below the center circle of the dome and inserted between the two limiting plates 19. The center circle is fixed by bolts.

[0036] The operation platform 1 is arranged above the center column. The operation platform 1 includes outer supports, inner supports, middle supports, platform ring beams, a circular platform 13, and guardrails 14. The circular platform is connected above the ladder 6. The guardrail component is detachable and can be split according to the arc length. The width of each single component is within 1.5m after splitting, which can be stacked and transported. The ring beam is welded on the outer support after splitting. The adjacent guardrails are connected by sleeves and fixed by double nut bolts to prevent loosening.

[0037] The ladder 6 is divided into upper and lower sections and a middle platform. Each module is welded into a component and fixed by bolts. This not only ensures the firmness of the ladder, but also facilitates disassembly and assembly.

[0038] As shown in Figure 5 The intermediate column 3 is arranged outside the center column 2. A connecting support 21 is arranged above the intermediate column 3 for connecting the middle part of the dome block 5. A base 22 is arranged below the intermediate column.

[0039] As shown in Figure 6 The side column 4 is arranged outside the intermediate column. A connecting support 22 is arranged above the side column, and a base 23 is arranged below the side column.

[0040] The intermediate column 3 and the side column 4 are sleeve structures with the same structure. The side column 4 is shorter than the intermediate column 3. Hydraulic cylinders 29 are arranged inside and below the intermediate column 3 and the side column 4. Figure 5 and6 As shown, the intermediate column 3 and the edge column 4 are respectively composed of an outer sleeve 28 and an inner sleeve 27, and the bottom of the inner sleeve 28 is connected with the telescopic rod of the hydraulic cylinder 29, so that the height can be adjusted.

[0041] In addition, the outer sleeve is inwardly contracted at the upper edge to form a limiting edge 30, so as to prevent the inner sleeve 28 from being pushed out (the lower edge of the inner sleeve 28 has a flash).

[0042] It should be noted that the above content only illustrates the technical thought of the present application, and cannot limit the protection scope of the present application. For the ordinary skilled in the art, some improvements and refinements can be made without departing from the principle of the present application, and these improvements and refinements all fall within the protection scope of the present application.

Claims

1. A movable support frame for assembling a large LNG cryogenic storage tank dome, characterized in that: The operating platform, the central column, the intermediate column and the side column are included, The central column is a vertical frame structure spliced by sectional steel, and a ladder is arranged on the side of the central column. A top support is arranged above the central column for connecting and fixing the dome, and a base one is arranged below the central column. The operating platform is arranged above the central column and includes a circular platform and a guardrail. The intermediate column is arranged outside the central column, and a connecting support one is arranged above the intermediate column and a base two is arranged below the intermediate column. The side column is arranged outside the intermediate column, and a connecting support two is arranged above the side column and a base three is arranged below the side column. The central column, the intermediate column and the side column are arranged on a straight line. The intermediate column and the side column are sleeve structures, and a hydraulic cylinder is arranged inside and below the intermediate column and the side column.

2. The movable support frame for assembling the large LNG cryogenic tank dome according to claim 1, characterized in that: The central column is vertically and uniformly arranged by six steel pipes, and a horizontal support and an inclined support are arranged between the adjacent two steel pipes. An inclined pull rod is arranged outside each steel pipe.

3. The movable support frame for assembling the large LNG cryogenic tank dome according to claim 1, characterized in that: Mounting holes are arranged on the base one, the base two and the base three.

4. The movable support frame for assembling the large LNG cryogenic tank dome according to claim 1, wherein: The top support includes a cylindrical base body and a plurality of limiting seats. The base body is fixed above the central column by bolts, and the plurality of limiting seats are uniformly arranged above the base body. The limiting seat is composed of two limiting plates one. The two limiting plates one are vertically arranged above the base body, and the side of the limiting plate one has a connecting hole one.

5. The movable support frame for assembling the large LNG cryogenic tank dome according to claim 1, wherein: The connecting support one is composed of two limiting plates two. The two limiting plates two are vertically arranged above the intermediate column by bolts, and the top of the limiting plate two is semicircular. The side of the limiting plate two has a connecting hole two.

6. The movable support frame for assembling the large LNG cryogenic tank dome according to claim 1, wherein: The connecting support two has the same structure as the connecting support one.

7. The movable support frame for assembling the large LNG cryogenic tank dome according to claim 1, wherein: An access door is arranged on the guardrail.

8. The movable support frame for assembling the large LNG cryogenic tank dome according to claim 1, wherein: The intermediate column and the side column are respectively composed of an outer sleeve and an inner sleeve. The bottom of the inner sleeve is connected with the telescopic rod of the hydraulic cylinder, and the upper edge of the outer sleeve is inwardly contracted to form a limiting edge.

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