Combined multifunctional clamp for steel chimney cylinder wall

Abstract

The utility model discloses a steel chimney cylinder wall combined multifunctional clamp, and mainly relates to the technical field of combination of steel chimney cylinder walls. Comprising a bottom plate, a plurality of sets of locking adjusting clamps are arranged on the bottom plate in an annular array mode, each set of locking adjusting clamp comprises two clamp units, one clamp unit is located on the inner side of a cylinder wall, and the other clamp unit is located on the outer side of the cylinder wall; each clamp unit comprises a supporting frame arranged on the bottom plate and a push-pull structure horizontally arranged on the supporting frame. The cylinder wall adjusting and aligning tool can be used as a cylinder wall adjusting and aligning tool and can also be used as a fixing clamp for welding, welding and cutting of a large number of lifting lugs can be avoided, the construction cost is reduced, damage to the cylinder wall caused by misoperation is avoided, and the construction progress is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel chimney barrel wall assembly, in particular to a steel chimney barrel wall assembly multifunctional clamp. Background Art

[0002] As the core equipment of the gas turbine generator set, the steel chimney of the waste heat boiler has always been a focus of attention in the construction of thermal power infrastructure due to its high position, large size and heavy weight. The large-diameter steel chimney of the waste heat boiler is difficult to transport due to its large size and prefabricated installation in sections. It is mostly supplied in the form of arc plates and needs to be assembled on site. At present, the combination of arc plates is mainly controlled by the inner side welding lifting lugs through the hand-pulled fall chain to control the inner diameter size, and the outer diameter size is adjusted by welding the fulcrum with a jack or by using the available rooting points on the outside to pull the fall chain by hand. The above method requires welding double the lifting lugs according to the number of arc plates. After adjustment and welding, grinding, rust removal, and paint anti-corrosion work are required. In addition, the corresponding work must be repeated for each component combination, which is not conducive to the construction progress and quality, and will also increase the difficulty and cost of construction. Utility Model Content

[0003] The purpose of the utility model is to solve the problems existing in the prior art and to provide a steel chimney tube wall combined multifunctional clamp, which can be used as a tube wall adjustment and alignment tool and also as a welding fixing clamp, thereby avoiding the welding and cutting of a large number of lifting ears, reducing construction costs, avoiding damage to the tube wall caused by improper operation, and greatly improving the construction progress.

[0004] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A steel chimney barrel wall combined multifunctional clamp comprises a base plate, on which a plurality of groups of locking and adjusting clamps are arranged in a circular array, each group of the locking and adjusting clamps comprises two clamp units, one of which is located on the inner side of the barrel wall, and the other is located on the outer side of the barrel wall; each of the clamp units comprises a support frame arranged on the base plate and a push-pull structure arranged horizontally on the support frame.

[0006] Preferably, the number of the locking and adjusting clamps is eight groups.

[0007] Preferably, the bottom end of the support frame is welded to the bottom plate.

[0008] Preferably, the push-pull structure includes a horizontally arranged adjusting screw, and a nut adapted to the adjusting screw is welded on the support frame.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] The utility model is provided with a plurality of groups of locking adjustment clamps in an annular array on the bottom plate. By adjusting the push-pull structure on the clamp units on both sides of the inner and outer sides of the cylinder wall, the push-pull structure pushes the cylinder wall, so that the circumferential size of the chimney can be controlled. After the combined welding is completed, the next group of cylinder walls can be continuously used. The push-pull structure on the clamp units on both sides of the inner and outer sides of the cylinder wall is pressed against the cylinder wall to lock the position of the cylinder wall. Therefore, the utility model can be used as a tool for adjusting and aligning the cylinder wall, and can also be used as a fixing clamp for welding, which can avoid the welding and cutting of a large number of lifting ears, reduce construction costs, avoid damage to the cylinder wall caused by improper operation, and greatly improve the construction progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a top view of the utility model;

[0012] Figure 2 It is a schematic diagram of the structure of the locking adjustment fixture.

[0013] Numbers in the attached drawings: 1, cylinder wall; 2, support frame; 3, adjusting screw; 4, welding seam; 5, bottom plate; 6, nut; 7, clamp unit. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0015] Example: As shown in the attached Figure 1-2 As shown, the utility model is a steel chimney barrel wall combined multifunctional clamp, comprising a bottom plate 5, on which a plurality of groups of locking and adjusting clamps are arranged in a circular array, each group of the locking and adjusting clamps comprises two clamp units 7, and in the two clamp units 7 in each group of the locking and adjusting clamps, one of the clamp units 7 is located on the inner side of the barrel wall 1, and the other clamp unit 7 is located on the outer side of the barrel wall 1;

[0016] Each of the clamp units 7 includes a support frame 2 arranged on the base plate 5 and a push-pull structure horizontally arranged on the support frame 2. The cylinder wall 1 is placed between the two clamp units 7 of the locking and adjusting clamps. The locking and adjusting clamps are evenly arranged along the circumference of the cylinder wall 1. The bottom end of the support frame 2 can be directly welded to the base plate 5, or the support frame 2 can be fixed to the base plate 5 by screws. A plurality of groups of screw adjustment holes can be arranged on the base plate 5 along the axial direction of the cylinder wall 1, and the support frame 2 can be fixed in different screw adjustment holes. The distance between the support frame 2 and the center of the annular array can be adjusted, and it can be suitable for cylinder walls 1 with different outer diameters. The push-pull structure can adopt a scissor jack or a hydraulic jack horizontally fixed on the support frame 2.

[0017] Preferably, the number of the locking and adjusting fixtures is eight groups, which can effectively control the circumferential alignment size.

[0018] Preferably, in order to reduce costs, the bottom end of the support frame 2 is welded to the bottom plate 5, and different utility models are equipped for cylinder walls 1 with different outer diameters.

[0019] Preferably, in order to reduce costs, the push-pull structure includes a horizontally arranged adjusting screw 3, a nut 6 adapted to the adjusting screw 3 is welded on the support frame 2, the adjusting screw 3 horizontally penetrates the support frame 2, and the adjusting screw 3 can be pressed against the cylinder wall 1 by rotating the adjusting screw 3.

[0020] The specific operation method of the utility model is:

[0021] (1) First, hoist the chimney arc plates into the utility model one by one;

[0022] (2) Use the push-pull structure (adjusting screw 3) to adjust and align the circumferential size of the chimney wall assembly;

[0023] (3) After the circumferential size is adjusted to meet the requirements, the push-pull structures (adjusting screws 3) on the inner and outer sides of the eight sets of locking and adjusting fixtures are pressed against the cylinder wall 1 in turn;

[0024] (4) Start welding the arc plate of the steel chimney wall 1;

[0025] (5) After welding is completed, the push-pull structures (adjusting screws 3) on the inner and outer sides of the eight sets of locking and adjusting fixtures are loosened in turn, and the assembled cylinder wall 1 is lifted off the assembly platform;

[0026] (6) Repeat the above steps (1) to (5).

Claims

1. A steel chimney wall combined multifunctional clamp, comprising a bottom plate (5), characterized in that: A plurality of groups of locking and adjusting clamps are arranged in a circular array on the bottom plate (5), and each group of the locking and adjusting clamps comprises two clamp units (7), wherein one clamp unit (7) is located on the inner side of the cylinder wall (1), and the other clamp unit (7) is located on the outer side of the cylinder wall (1); each of the clamp units (7) comprises a support frame (2) arranged on the bottom plate (5) and a push-pull structure arranged horizontally on the support frame (2).

2. The steel chimney wall combined multifunctional clamp according to claim 1, characterized in that: The number of the locking and adjusting fixtures is eight sets.

3. The steel chimney wall combined multifunctional clamp according to claim 1, characterized in that: The bottom end of the support frame (2) is welded to the bottom plate (5).

4. The steel chimney wall combined multifunctional clamp according to claim 1, characterized in that: The push-pull structure comprises a horizontally arranged adjusting screw (3), and a nut (6) adapted to the adjusting screw (3) is welded on the supporting frame (2).

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