CN117444522A - High-altitude installation device for large-diameter pipeline and construction method thereof - Google Patents

Abstract

The invention discloses a high-altitude installation device for a large-diameter pipeline and a construction method thereof, and belongs to the technical field of building construction. The invention comprises a welding platform, a climbing mechanism and a travelling mechanism; the welding platform comprises an upper platform and a lower platform, wherein the upper platform is wholly arc-shaped and is used for riding on a pipeline, the lower platform is hung on two sides of the pipeline, and the upper platform is provided with a second locating piece matched with the first locating piece on the pipeline. One end of the climbing mechanism is close to the ground, and the other end of the climbing mechanism extends to the top of the pipeline; one end of the travelling mechanism is positioned at the climbing mechanism at the top of the pipeline, and the other end of the travelling mechanism at least extends to the upper platform. The welding platform can be installed on the ground, so that aerial operation is greatly reduced, construction difficulty is reduced, and construction efficiency is improved; in addition, through the cooperation relation between second setting element and the first setting element, can realize the accurate location between welded platform and the weld neck position.

Description

High-altitude installation device for large-diameter pipeline and construction method thereof

Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a high-altitude installation device for a large-diameter pipeline and a construction method thereof.

Background

In the construction process of an industrial factory building, besides the installation tasks of structures, equipment, energy-saving pipelines, power systems and the like which are necessary for industrial production, the method also needs to consider how dust and toxic and harmful gases possibly generated in the production process are discharged, and avoids the unorganized discharge. The dust removing system is a primary choice for solving the problems, taking a steelmaking converter system as an example, and in order to achieve emission reaching standards, the converter system is provided with a primary dust removing system for absorbing high-temperature smoke dust at a converter mouth during steelmaking, a secondary dust removing system for absorbing secondary high-temperature gas at the periphery of a converter body and a tertiary dust removing system for absorbing dust of each layer of platform in a converter workshop, wherein the total of three dust removing systems are provided.

The dust removal system generally consists of a dust remover, a dust removal pipeline and a dust removal pipeline bracket. Because the diameter of the dust removing pipeline is very large, most dust removing pipelines are laid overhead. The height of the dust removing pipeline support is generally more than ten meters, which also brings great difficulty to the installation work of the dust removing pipeline, and how to make safety measures is particularly important. With the implementation of new security, the national requirements on security measures are higher and higher, the high requirements require high investment, and the installation and the disassembly of temporary facilities also require a great deal of manpower and material resources. In the conventional dust removal pipeline construction process, the installation can be completed by adopting a scaffold building method, the installation can be completed in an auxiliary manner through a lifting car, and the installation can also be completed through a welding operation platform. However, the construction difficulty and the construction cost are relatively high no matter which installation method is adopted. Especially, when the construction operation of a large amount of dust removal pipelines is involved, the investment of safety measures is larger, the setting time of the safety measures is longer, the dismantling difficulty is large, and great difficulty is brought to the installation of the dust removal pipelines.

Through searching, the application with the Chinese patent publication number of CN 105798474A discloses a device and a manufacturing method for field high-altitude welding of a large-caliber gas pipeline. The application comprises two steel structure ladder protection cages and a steel structure arc-shaped support, wherein the two steel structure ladder protection cages are frames made of two equal-height and equal-caliber steel pipes, a plurality of crosspiece steel pipes are arranged in the height direction of the two steel structure ladder protection cages, and galvanized steel pipe fences are arranged in the bottom end frames; the steel structure arc-shaped support is a frame made of two arc-shaped galvanized steel pipes and a plurality of angle steel, the steel structure arc-shaped support is erected on the top ends of the two steel structure ladder protection cages, the two steel structure ladder protection cages are welded and fixed, and the two steel structure ladder protection cages can be placed on two sides of a large-caliber gas pipeline when in use. This application provides safe convenient working face for construction operation personnel, can improve work efficiency greatly, reduces the input of equipment. However, in this application, there is no good positioning between the stent and the tube; on one hand, the stability of the bracket is not facilitated, and on the other hand, the quick and accurate positioning of the distance between the bracket and the welding joint of the pipeline is not facilitated.

Disclosure of Invention

1. Problems to be solved

Aiming at least some problems in the prior art, the invention provides a large-diameter pipeline high-altitude installation device and a construction method thereof, and aims to solve the problems of high lap joint construction cost and low overall construction progress of a welding operation platform when the existing large-scale pipeline is installed.

2. Technical proposal

In order to solve the problems, the technical scheme adopted by the invention is as follows:

the invention relates to a high-altitude installation device for a large-diameter pipeline, which comprises a welding platform,

the welding platform comprises an upper platform and a lower platform, wherein the upper platform is wholly arc-shaped and is used for riding on a pipeline, the lower platform is hung on two sides of the pipeline, and a second positioning piece matched with the first positioning piece on the pipeline is arranged on the upper platform;

the climbing mechanism has one end close to the ground and the other end extending to the top of the pipeline;

and one end of the traveling mechanism is positioned at the climbing mechanism at the top of the pipeline, and the other end of the traveling mechanism extends to at least the upper platform.

Further, the first locating piece is a locating sleeve, the second locating piece comprises a body and bending sections arranged on two sides of the body, one bending section is connected with the upper platform, and the other end of the first locating piece is inserted into the corresponding locating sleeve.

Further, the climbing mechanism comprises a vertical section and an arc-shaped section, wherein the vertical section is a ladder arranged on the pipeline support, and the arc-shaped section is a ladder arranged on the peripheral wall of the pipeline.

Further, the travelling mechanism comprises a plurality of vertical rods which are axially distributed along the pipeline, one end of each vertical rod is arranged at the top of the pipeline, and the other end of each vertical rod is provided with a safety rope.

Further, a positioning block is arranged at the end part of the vertical rod, a clamping block for clamping the positioning block is arranged on the pipeline, and the positioning block and the pipeline are fastened through a fastener.

Further, falling prevention ropes are arranged on the pipeline and close to the climbing mechanism and the welding platform, and are provided with climbing self-locking devices.

Further, the top of the lower platform is hung at the bottom of the upper platform through a hook, a hanging basket is arranged on the side face of the lower platform, and a springboard is arranged at the bottom of the lower platform.

Further, the lower platform and the pipeline are also positioned by the first positioning piece and the second positioning piece.

The invention also provides a construction method of the high-altitude installation device of the large-diameter pipeline, which comprises the following steps,

s1, clamping the upper platform into a first positioning piece on a pipeline through a second positioning piece, and completing installation of the upper platform;

s2, arranging a crawling ladder along the pipeline support and the peripheral wall of the pipeline to form a climbing mechanism, arranging an anti-falling rope on the pipeline, and providing a climbing self-locking device;

s3, arranging a clamping block at the top of the pipeline, firmly connecting the vertical rod with the clamping block, and penetrating a safety rope into the vertical rod to form a travelling mechanism;

s4, mounting the lower platform on the upper platform through a hook, and simultaneously positioning through a second positioning piece to finish the mounting of the lower platform;

s5, an operator sequentially passes through the climbing mechanism and the travelling mechanism to reach the welding platform, and then welding operation is carried out.

Further, the upper platform, the ladder on the pipeline and the travelling mechanism are all installed on the ground, and then are integrally hoisted with the pipeline; the lower platform is installed after the pipeline is at a distance from one end of the ground.

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) According to the high-altitude installation device for the large-diameter pipeline, the welding platform is divided into the upper platform and the lower platform, and when the high-altitude installation device is installed, the upper platform is firstly installed on the pipeline and then is integrally hoisted with the pipeline; after the pipeline is at a certain height from the ground, the lower platform can be installed; the installation of the whole welding platform can be completed on the ground, so that the aerial operation is greatly reduced, the construction difficulty is reduced, and the construction efficiency is improved; in addition, by arranging the first positioning piece at a proper position, which is away from the weld junction, on the pipeline in advance and then utilizing the matching relation between the second positioning piece and the first positioning piece, the accurate positioning between the welding platform and the weld junction position can be realized, so that the later welding operation is convenient; and meanwhile, the connection stability of the welding platform can be ensured.

(2) According to the high-altitude installation device for the large-diameter pipeline, through further optimizing design of the climbing mechanism and the travelling mechanism, operators can directly start from the ground, sequentially pass through the vertical section and the arc section to reach the top of the pipeline, and then reach the welding platform from the top of the pipeline; meanwhile, in the moving process of different stages, an operator can switch the safety belt onto the corresponding safety rope or the anti-falling rope, so that the safety belt is not unhooked in the whole process, and the safety in the construction process can be effectively ensured.

Drawings

FIG. 1 is a schematic view of a large diameter pipeline overhead installation apparatus of the present invention;

FIG. 2 is a schematic view of the assembly between a welding platform and a pipe in the present invention;

FIG. 3 is a schematic view of the climbing mechanism of the present invention;

FIG. 4 is a schematic view of the structure of the walking mechanism of the present invention;

FIG. 5 is a schematic diagram of a latch according to the present invention;

fig. 6 is a schematic structural view of a second positioning member according to the present invention.

In the figure: 1. a welding platform; 11. an upper platform; 12. a lower platform; 13. hanging basket; 14. a springboard;

2. a climbing mechanism; 21. a vertical section; 22. an arc section;

3. a walking mechanism; 31. a vertical rod; 32. a safety rope; 33. a positioning block; 34. a clamping block; 35. a fastener;

4. a pipe; 5. a first positioning member; 6. a second positioning member; 7. a conduit bracket; 8. an anti-falling rope; 9. a climbing self-locking device.

Detailed Description

The invention is further described below in connection with specific embodiments.

Example 1

As shown in fig. 1, the high-altitude installation device for a large-diameter pipeline of the embodiment comprises a welding platform 1, a climbing mechanism 2 and a travelling mechanism 3.

The welding platform 1 is used for an operator to stand so as to finish welding operation of a welded junction of the pipeline 4.

The welding platform 1 comprises an upper platform 11 and a lower platform 12. The whole upper platform 11 is arc-shaped and is used for riding the pipeline 4; the lower platform 12 is hung on two sides of the pipeline 4, and the upper platform 11 is provided with a second positioning piece 6 matched with the first positioning piece 5 on the pipeline 4.

One end of the climbing mechanism 2 is close to the ground, and the other end of the climbing mechanism extends to the top of the pipeline 4 and is used for an operator to climb to the walking mechanism 3 from the ground.

One end of the travelling mechanism 3 is positioned at the climbing mechanism 2 at the top of the pipeline 4, and the other end of the travelling mechanism extends to at least the upper platform 11 for an operator to walk from the travelling mechanism 3 to the upper platform 11.

In the high-altitude installation device for the large-diameter pipeline, the upper platform 11 can be installed on the ground and then is hoisted with the pipeline 4 integrally; after the pipeline 4 is at a certain height from the ground, the lower platform 12 is hung at the bottom of the upper platform 11. By the design, the whole welding platform 1 can be installed on the ground, so that aerial operation is greatly reduced, construction difficulty is reduced, and construction efficiency is improved.

In addition, the first positioning piece 5 is arranged at a proper position on the pipeline 4, which is away from the welded junction in advance; then, the first positioning piece 5 is used as a positioning basis, the upper platform 11 is assembled with the first positioning piece 5 through the second positioning piece 6, and the accurate positioning between the welding platform 1 and the welding position can be realized, so that the later welding operation is convenient; while also ensuring the stability of the upper platform 11.

Example 2

This embodiment is a specific embodiment of the first positioning member 5 and the second positioning member 6.

Referring to fig. 2 and 6, the first positioning member 5 is a positioning sleeve, which is distributed along the outer peripheral wall of the upper half of the pipe 4, and has an axis parallel to the axis of the pipe 4.

The second positioning piece 6 comprises a body and bending sections arranged at two sides of the body, wherein one bending section is connected with the upper platform 11, and the other end of the second positioning piece is used for being inserted into a corresponding positioning sleeve.

In this embodiment, 5 positioning sleeves and 5 second positioning members 6 are provided, and the second positioning members 6 are connected with the upper platform 11 through welding between the positioning sleeves and the pipeline 4. And after the upper platform 11 is installed on the pipeline 4, a gap of 100-150mm is reserved between the upper platform 11 and the pipeline, so that climbing operation of operators is facilitated.

In addition, it should be noted that the second positioning member 6 should be arranged in a consistent direction to facilitate the assembly and disassembly operations.

Example 3

This embodiment is provided as an embodiment of climbing mechanism 2.

Referring to fig. 1 and 3, the climbing mechanism 2 includes a vertical segment 21 and an arcuate segment 22. Wherein, vertical section 21 be the cat ladder of setting on pipeline support 7, arc section 22 is the cat ladder of setting on pipeline 4 peripheral wall.

Specifically, the cat ladder is connected with the pipeline support 7 through supporting angle steel, and an anti-falling rope 8 and a climbing self-locking device 9 are arranged at the top of the pipeline 4 at the position of the cat ladder so as to form a vertical climbing system.

In the embodiment, the L50 angle steel is adopted as a framework, and phi 12mm round steel is adopted as a step. The L50 angle steel is selected as the supporting angle steel, the L50 angle steel is welded with the crawling ladder and the pipeline bracket 7 respectively, and the setting interval of the supporting angle steel is not more than 2m.

According to the large-diameter pipeline high-altitude installation device, the pipeline bracket 7 is used as a foundation of a vertical climbing system, so that operators can conveniently climb to the top of the pipeline 4 from the ground; meanwhile, through the arrangement of the anti-falling rope 8 and the climbing self-locking device 9, the safety of operators in the climbing process can be effectively guaranteed.

Example 4

This embodiment is a specific embodiment of the running gear 3.

Referring to fig. 1, 4 and 5, the travelling mechanism 3 includes a plurality of vertical rods 31 axially distributed along the pipeline 4, one end of each vertical rod 31 is disposed at the top of the pipeline 4, and the other end is provided with a through hole through which the safety rope 32 passes.

Specifically, a clamping block 34 is arranged at the top of the pipeline 4, the clamping block 34 is shaped like a Chinese character 'ji', the clamping block 34 is welded on the pipeline 4, and a gap is formed between the middle part of the clamping block and the top of the pipeline 4.

The end of the upright 31 is provided with a positioning block 33, and the positioning block 33 is clamped into the gap and then fastened by a fastener 35, so that the connection between the two parts can be completed.

Wherein, the fastener 35 can be a bolt. Of course, the clamping block 34 needs to be provided with a through hole for the bolt to pass through, and the positioning block 33 is provided with a threaded hole or a welding nut matched with the bolt.

In this embodiment, the positioning blocks 33 are provided with two blocks and are distributed vertically. That is, when the positioning block 33 located at the lower part is clamped into the clamping block 34, the positioning block 33 located at the upper part is located above the clamping block 34; then, the screw is fastened. The design can further ensure the stability of the connection between the two.

According to the large-diameter pipeline high-altitude installation device, when an operator climbs to the top of a pipeline 4 from the climbing mechanism 2, the operator can walk to the welding platform 1 through the traveling mechanism 3; and the safety belt can be switched to the safety rope 32 of the running mechanism 3 so as to ensure the safety of the operator in the horizontal running process.

Example 5

In the high-altitude installation device for the large-diameter pipeline, the upper platform 11 is formed into a framework by two bent steel pipes, and a ladder step is arranged between the two bent steel pipes to form a ladder stand structure. The lower platform 12 is also comprised of a framework and a step ladder.

Wherein, the lower platform 12 can be hung on the upper platform 11 by the hanging hook at the upper part, thereby further facilitating the assembly operation between the two.

In order to further facilitate the welding operation of the middle area and the bottom weld of the pipeline 4, the side surface of the lower platform 12 is provided with a hanging basket 13, and the bottom of the lower platform is provided with a springboard 14. And a distance of about 500mm is left between the springboard 14 and the bottom of the pipe 4 to facilitate the welding operation of the operator.

Of course, in order to ensure the safety of operators, the pipeline 4 is also provided with an anti-falling rope 8 and a climbing self-locking device 9 near the welding platform 1.

In the embodiment, the framework is phi 16mm round steel; the steps are phi 12mm round steel; the two springboards 14 are laid, and the thickness of the springboards is about 50mm, and the width of the springboards is about 200mm, so that the springboards can stably support single operators.

In addition, in order to prevent the lower platform 12 from shaking, safety of operators and welding quality are affected. The lower platform 12 and the lower half of the pipeline 4 can be positioned by using a first positioning piece 5 and a second positioning piece 6.

According to the high-altitude installation device for the large-diameter pipeline, an operator can finish welding operation of a top and an upper welded junction at the top of the pipeline 4; then the ladder of the upper platform 11 is moved into the hanging basket 13 of the lower platform, and the welding operation close to the welded junction in the middle area is completed; then, the operator moves from the cradle 13 to the springboard 14 to complete the operation of bottom weld.

In addition, the embodiment also provides a construction method of the high-altitude installation device of the large-diameter pipeline, which comprises the following steps:

s1, clamping an upper platform 11 into a first positioning piece 5 on a pipeline 4 through a second positioning piece 6, and completing the installation of the upper platform 11;

s2, arranging a ladder along the pipeline support 7 and the peripheral wall of the pipeline 4 to form a climbing mechanism 2, arranging an anti-falling rope 8 on the pipeline 4, and providing a climbing self-locking device 9;

s3, arranging a clamping block 34 at the top of the pipeline 4, firmly connecting the upright rod 31 and the clamping block 34, and penetrating the safety rope 32 into the upright rod 31 to form a travelling mechanism 3;

s4, mounting the lower platform 12 on the upper platform 11 through a hook, and simultaneously positioning through the second positioning piece 6 to finish the mounting of the lower platform 12;

s5, an operator sequentially passes through the climbing mechanism 2 and the traveling mechanism 3 to reach the welding platform 1, and then welding operation is carried out.

In the above steps, the upper platform 11, the climbing mechanism 2 and the travelling mechanism 3 are all installed on the ground, and then are integrally hoisted with the pipeline 4; the lower platform 12 is installed after the pipe 4 is located a distance from the ground. Meanwhile, it should be noted that the order of the steps S1 to S3 may be adjusted according to the actual situation.

In summary, the high-altitude installation device for the large-diameter pipeline and the construction method thereof cover three safety measures of ascending, high-altitude walking and welding operation of the large-diameter pipeline in an overhead operation environment, and are suitable for installation operation of various large-diameter pipelines. In use, an operator ties the safety belt from the ground onto the safety line of the climbing mechanism 2 and then climbs along the climbing mechanism 2 to the top of the pipe 4; then the safety belt is switched to the safety rope of the travelling mechanism 3, the travelling mechanism 3 walks to the welding position, and the safety belt is switched to the safety rope of the welding platform 1, so that the safety belt is not unhooked in the whole process, and the safety coefficient is very high. In addition, through the mutually supporting of first setting element 5 and second setting element 6, can realize the accurate location between welded platform 1 and the weld neck position, still guaranteed its stability simultaneously.

The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.

Claims (10)

1. A large diameter pipeline high altitude installation device which characterized in that: comprises a welding platform (1),

the welding platform (1) comprises an upper platform (11) and a lower platform (12), wherein the upper platform (11) is wholly arc-shaped and is used for riding a pipeline (4), the lower platform (12) is hung on two sides of the pipeline (4), and the upper platform (11) is provided with a second positioning piece (6) matched with the first positioning piece (5) on the pipeline (4);

the climbing mechanism (2), one end of the climbing mechanism (2) is close to the ground, and the other end of the climbing mechanism extends to the top of the pipeline (4);

and one end of the travelling mechanism (3) is positioned at the climbing mechanism (2) at the top of the pipeline (4), and the other end of the travelling mechanism (3) at least extends to the upper platform (11).

2. A large diameter pipe overhead installation according to claim 1, wherein: the first locating piece (5) is a locating sleeve, the second locating piece (6) comprises a body and bending sections arranged on two sides of the body, one bending section is connected with the upper platform (11), and the other end of the second locating piece is used for being inserted into the corresponding locating sleeve.

3. A large diameter pipeline overhead installation according to claim 1 or 2, wherein: the climbing mechanism (2) comprises a vertical section (21) and an arc-shaped section (22), wherein the vertical section (21) is a ladder arranged on the pipeline support (7), and the arc-shaped section (22) is a ladder arranged on the peripheral wall of the pipeline (4).

4. A large diameter pipeline overhead installation according to claim 1 or 2, wherein: the travelling mechanism (3) comprises a plurality of vertical rods (31) which are axially distributed along the pipeline (4), one end of each vertical rod (31) is arranged at the top of the pipeline (4), and the other end of each vertical rod is provided with a safety rope (32).

5. The high-altitude installation apparatus for a large-diameter pipeline according to claim 4, wherein: the end of the upright rod (31) is provided with a positioning block (33), the pipeline (4) is provided with a clamping block (34) for clamping the positioning block (33), and the positioning block and the pipeline are fastened through a fastener (35).

6. The high-altitude installation apparatus for a large-diameter pipeline according to claim 5, wherein: the pipeline (4) is provided with an anti-falling rope (8) at a place close to the climbing mechanism (2) and the welding platform (1), and the anti-falling rope (8) is provided with a climbing self-locking device (9).

7. A large diameter pipeline overhead installation according to claim 1 or 2, wherein: the top of the lower platform (12) is hung at the bottom of the upper platform (11) through a hook, a hanging basket (13) is arranged on the side surface of the lower platform (12), and a springboard (14) is arranged at the bottom of the lower platform.

8. The high-altitude installation apparatus for a large-diameter pipeline according to claim 8, wherein: the lower platform (12) and the pipeline (4) are also positioned by the first positioning piece (5) and the second positioning piece (6).

9. The construction method of the large-diameter pipeline high-altitude installation device according to claim 5, wherein: comprises the steps of,

s1, clamping an upper platform (11) into a first positioning piece (5) on a pipeline (4) through a second positioning piece (6), and completing installation of the upper platform (11);

s2, arranging a ladder along the pipeline support (7) and the peripheral wall of the pipeline (4) to form a climbing mechanism (2), arranging an anti-falling rope (8) on the pipeline (4), and providing a climbing self-locking device (9);

s3, a clamping block (34) is arranged at the top of the pipeline (4), the upright rod (31) and the clamping block (34) are firmly connected, and a safety rope (32) penetrates into the upright rod (31) to form a travelling mechanism (3);

s4, mounting the lower platform (12) on the upper platform (11) through a hook, and simultaneously positioning through a second positioning piece (6) to finish the mounting of the lower platform (12);

s5, an operator sequentially passes through the climbing mechanism (2) and the travelling mechanism (3) to reach the welding platform (1), and then welding operation is carried out.

10. The construction method of the large-diameter pipeline high-altitude installation device according to claim 9, wherein: the upper platform (11), the ladder on the pipeline (4) and the travelling mechanism (3) are all installed on the ground, and then are integrally hoisted with the pipeline (4); the lower platform (12) is installed after the pipe (4) is at a distance from the ground.