CN211496566U

CN211496566U - Ring type balance beam for replacing high-altitude vertical equipment

Info

Publication number: CN211496566U
Application number: CN201922127843.9U
Authority: CN
Inventors: 张传明; 周兴和
Original assignee: Sinopec Engineering Group Co Ltd; Sinopec Heavy Lifting Transporting Engineering Co Ltd
Current assignee: Sinopec Engineering Group Co Ltd; Sinopec Heavy Lifting Transporting Engineering Co Ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-09-15
Anticipated expiration: 2029-11-30

Abstract

The utility model belongs to the technical field of hoisting, and discloses a circular ring type balance beam for replacing high-altitude vertical equipment, which comprises an inner retainer ring and an outer retainer ring concentrically arranged outside the inner retainer ring, wherein two sides of the outer retainer ring are respectively connected with plate-type lifting lugs, and the two plate-type lifting lugs are symmetrically arranged at an angle of 180 degrees; tube-axis type lifting lugs are respectively arranged on two sides of each plate-type lifting lug, and the four tube-axis type lifting lugs are symmetrically arranged in the transverse and longitudinal directions; the tube-shaft type lifting lug is connected between the outer retainer ring and the inner retainer ring by a horizontal axis, and a space is reserved between the axis of the tube-shaft type lifting lug and the central line of the plate type lifting lug. The utility model discloses can effectively avoid the high altitude weldment work of main lug through the welding elevation that reduces main lug to the very big reduction high altitude scaffold's the setting up and demolish the operation, not only showing and reducing construction safety risk, reduction of erection time moreover, reduce cost plays very big positive effect to security, the economic nature of whole engineering.

Description

Ring type balance beam for replacing high-altitude vertical equipment

Technical Field

The utility model belongs to the technical field of hoist and mount, specific theory relates to a hoist for high altitude vertical equipment is changed.

Background

The long-time operation of petrochemical device needs the interior equipment of device to overhaul even change. For chimney type high-altitude vertical equipment, the conventional dismounting and hoisting process is to separate the equipment from the original foundation after welding the equipment or using the original main lifting lug and threading a rigging system. However, with long-term operation, the main lifting lug of the equipment generally corrodes more seriously, and the wall thickness of the welding position of the lifting lug can be reduced due to the thinner shell of the equipment. Therefore, in the dismantling process, the wall thickness of the shell at the welding position of the lifting lug needs to be detected, and corresponding reinforcing measures are taken or the lifting lug needs to be welded again according to the detection result.

Because the high-altitude vertical equipment body is higher and does not have an auxiliary labor protection platform, the existing technical scheme is that a scaffold is generally erected for carrying out lifting lug detection/welding work, the height of the erected scaffold must reach the height of the lifting lug, the work load of high-altitude operation is large, and the construction risk is high. After the welding of the lifting lugs is finished, the scaffold is required to be completely dismantled, so that the hoisting operation can be carried out, the construction period is long, and the construction cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses putting forth effort in solving the difficult problem of high altitude welding lug in the operation of chimney class high altitude vertical equipment change, providing a ring formula compensating beam for high altitude vertical equipment is changed, can make main lug welded position reduce to apart from ground or operation platform top 3-4m department, showing and having reduced the work load that the scaffold was set up/demolishd in the high altitude, can reduce construction risk, construction cost, construction period to minimum.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

a circular ring type balance beam for replacing high-altitude vertical equipment comprises an inner retainer ring and an outer retainer ring concentrically arranged outside the inner retainer ring, wherein plate-type lifting lugs are respectively connected to two sides of the outer retainer ring, and the two plate-type lifting lugs are symmetrically arranged at an angle of 180 degrees; tube-axis type lifting lugs are respectively arranged on two sides of each plate-type lifting lug, and the four tube-axis type lifting lugs are symmetrically arranged in the transverse and longitudinal directions; the pipe shaft type lifting lug is connected between the outer retainer ring and the inner retainer ring through a horizontal axis, and a space is reserved between the axis of the pipe shaft type lifting lug and the central line of the plate type lifting lug.

Furthermore, two fixing pieces which are symmetrically arranged at an angle of 180 degrees are connected between the outer retainer ring and the inner retainer ring, and the axes of the two fixing pieces are perpendicular to the central connecting line of the two plate-type lifting lugs.

Furthermore, the two plate-type lifting lugs are respectively arranged at 90-degree and 270-degree positions of the circular ring type balance beam, and the four tube-shaft-type lifting lugs are respectively arranged at 82-degree, 98-degree, 262-degree and 278-degree positions of the circular ring type balance beam.

The utility model has the advantages that:

the utility model discloses a ring formula compensating beam for high altitude vertical equipment is changed through the welding elevation that reduces main lug, effectively avoids the high altitude weldment work of main lug to the very big high altitude scaffold that has reduced sets up and demolishs the operation, not only is showing and is reducing construction safety risk, reduction of erection time moreover, and reduce cost plays very big positive effect to the security of whole engineering, economic nature.

Drawings

FIG. 1 is a schematic view of conventional hoisting of overhead vertical equipment;

FIG. 2 is a schematic view of the ring type balance beam of the present invention;

fig. 3 is a front view of the ring type balance beam of the present invention;

fig. 4 is an attached view of the ring type balance beam of the present invention;

fig. 5 is a left side view of the ring type balance beam of the present invention;

FIG. 6 is a schematic view of the ring type balance beam of the present invention;

FIG. 7 is a position diagram of a main hoisting steel wire rope in a ring type balance beam;

FIG. 8 is a schematic view of the connection of the main crane system and the high-altitude vertical equipment;

FIG. 9 is a detailed view of the connection between the main hoisting wire rope, the shackle and the main lifting lug penetrating and hanging wire rope and the main lifting lug of the equipment in the hoisting method of the invention;

fig. 10 is a schematic view of the process of the hoisting method of the invention from the vertical state to the horizontal state of the high-altitude vertical equipment.

In the above figures: 1-a main lifting lug; 2-sliding tail lifting lug; 3-circular ring type balance beam, 31-outer retainer ring, 32-inner retainer ring, 33-plate type lifting lug, 34-tube shaft type lifting lug and 35-fixing piece; 4-main hanging balance beam; 5-connecting a steel wire rope; 6-main hoisting steel wire rope; 7-shackle removal; 8, hanging a steel wire rope by the main lifting lug; 9-tail slipping rigging.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:

as shown in fig. 1, the conventional dismantling and hoisting manner of the high-altitude vertical equipment is to weld or use an old main lifting lug 1 above the equipment and separate the equipment from an original foundation after a rigging system is threaded. This mode needs to set up the scaffold frame to carry out the detection of lug welding position, welding and rigging and wear to hang work. After the work is finished, the scaffold needs to be dismantled, so that the hoisting operation can be carried out.

As shown in fig. 2, the utility model discloses an annular compensating beam can reduce the elevation of main lug 1 to about 3-4m above apart from ground or the operation platform, and the suspension cable utensil passes dedicated annular compensating beam 3 and is connected with main lug 1.

As shown in fig. 3-5, the circular ring type balance beam 3 is composed of an outer retainer ring 31, an inner retainer ring 32, a plate type lifting lug 33, a tube shaft type lifting lug 34 and a fixing piece 35. The outer retainer ring 31 is arranged outside the inner retainer ring 32 and is arranged concentrically with the inner retainer ring 32, and an annular space between the outer retainer ring 31 and the inner retainer ring 32 is used as a rope accommodating space of the main hoisting steel wire rope 6. Meanwhile, the inner retainer ring 32 is used as a contact point of the high-altitude vertical equipment and a lifting appliance in a state from vertical to horizontal, and the inner retainer ring 32 plays a role of directly supporting the high-altitude vertical equipment. The plate-type lifting lug 33 comprises two pieces, a lifting hole is formed in the upper portion of each plate-type lifting lug 33, the lower portion of each plate-type lifting lug 33 is welded on the outer side of the outer retainer ring 31, and the two plate-type lifting lugs 33 are symmetrically arranged at 90 degrees and 270 degrees respectively and are used for connecting and fixing the main lifting hook and the circular ring-type balance beam 3. The tube shaft type lifting lug 34 is a circular tube structure, two ends of the tube shaft type lifting lug are respectively welded on the outer retainer ring 31 and the inner retainer ring 32, and the axis of the tube shaft type lifting lug is horizontally arranged. The tube-shaft type lifting lug 34 comprises four pieces, and the four pieces are welded between the outer retainer ring 31 and the inner retainer ring 32 and used for fixing the main hoisting steel wire rope 6 in the process of the high-altitude vertical equipment from the vertical state to the horizontal state. Two groups of two tube-axis type lifting lugs 34 are respectively arranged on two sides of each plate-type lifting lug 33, the two tube-axis type lifting lugs 34 in the same group are symmetrically arranged by the central line of the plate-type lifting lug 33, and a distance is reserved between the axial line of the tube-axis type lifting lug 34 and the central line of the plate-type lifting lug 33; the two groups of tube axis type lifting lugs 34 are symmetrically arranged by the vertical center line of the circular ring type balance beam 3. For example: the tube-axis type lifting lug 34 can be symmetrically and horizontally welded at the positions of 82 degrees, 98 degrees, 262 degrees and 278 degrees, the vertical distance between the axis of the tube-axis type lifting lug 34 and the center line is about 300mm, and the distance in the vertical direction is reserved to ensure that the center of the main hoisting steel wire rope 6 is parallel to the center line of the plate type lifting lug 33 as much as possible during hoisting operation, so that the high-altitude vertical equipment is kept in a vertical state during hoisting. The fixing member 35 includes two pieces, and is a circular tube structure, and both ends of the fixing member are welded to the outer retainer ring 31 and the inner retainer ring 32 respectively, and the axis is horizontally disposed. The fixing pieces 35 are auxiliary fixing connecting parts between the outer retainer ring 31 and the inner retainer ring 32 and can be symmetrically arranged at 0 degrees and 180 degrees. The outer retainer 31 and the inner retainer 32 are connected by welding of the fixing piece 35 to form a structural whole of the circular ring type balance beam 3. The chimney with the diameter of 3m is replaced, the outer diameter of the outer retainer ring 31 is 5050mm, the outer diameter of the inner retainer ring 32 is 4050mm, the widths of the outer retainer ring 31 and the inner retainer ring 32 are both 500mm, and the thicknesses of the outer retainer ring 31 and the inner retainer ring 32 are both 25 mm; the axis of the tube-axis lug 34 is vertically spaced from the centerline by about 300 mm.

The annular balance beam 3 replaces the function of the main lifting lug 1 in the original hoisting process, and the annular balance beam 3 is used as a fulcrum to slowly lay down the high-altitude vertical equipment in the turning process of the high-altitude vertical equipment.

Utilize the utility model discloses a ring formula compensating beam carries out high altitude vertical equipment and changes, can go on according to following step:

(1) preparation work before equipment removal is carried out: welding a main lifting lug 1 and a tail sliding lifting lug 2 on the high-altitude vertical equipment, welding the main lifting lug 1 at a position 3-4m away from the bottom end of the high-altitude vertical equipment, and symmetrically arranging the main lifting lugs 1 on the high-altitude vertical equipment in an angle of 180 degrees; the tail sliding lifting lugs 2 are located 1-2m away from the bottom end of the high-altitude vertical equipment, and the tail sliding lifting lugs 2 are two in number and are symmetrically arranged on the high-altitude vertical equipment at 180 degrees in the same direction as the main lifting lug 1. And selecting a proper circular ring type balance beam 3 and a matched machine rigging according to the size of the outer diameter of the high-altitude vertical equipment.

(2) And carrying out assembling work of the crane, and carrying out inspection and confirmation on the crane and the machine rigging after the assembling is finished.

(3) Wear to hang ring formula compensating beam 3: as shown in fig. 6, after the main hook is connected with the balance beam 4 through the wire rope and the corresponding shackle above the balance beam, the lower part of the balance beam 4 is connected with the plate-type lifting lug 33 in the circular balance beam 3 through the connecting wire rope 5 and the shackle.

(4) Threading and hanging a main hanging steel wire rope 6: as shown in fig. 7, two main hoisting steel wire ropes 6 are additionally connected to the shackle below the main hoisting balance beam 4, the main hoisting steel wire ropes 6 pass through the space between the outer retainer ring 31 and the inner retainer ring 32 in the circular ring type balance beam 3, and each main hoisting steel wire rope 6 is correspondingly positioned between two tube-shaft type lifting lugs 34 on both sides of each plate type lifting lug 33.

(5) Connecting a main hoisting system with high-altitude vertical equipment: commanding a main crane, moving the circular ring type balance beam 3 to be right above the high-altitude vertical equipment, slowly hooking back to enable the circular ring type balance beam 3 to penetrate through the high-altitude vertical equipment, slowly descending the circular ring type balance beam 3 until the bottom end of a main hoisting steel wire rope 6 is connected through a shackle 7 and a main hoisting lug penetrating and hanging steel wire rope 8, sleeving and hanging the main hoisting lug penetrating and hanging steel wire rope 8 on the main hoisting lug 1, and finishing penetrating and hanging of a main hoisting system as shown in figures 8 and 9.

(6) After the main hoisting system is completely threaded, the high-altitude vertical equipment is hoisted, after the high-altitude vertical equipment is separated from the foundation, the high-altitude vertical equipment is hoisted to a proper position, and the tail sliding lifting lug 2 is connected with a tail sliding crane through a tail sliding rigging 7.

(7) Finally, as shown in fig. 9, the main crane and the tail-sliding crane cooperate to lay down the high-altitude vertical equipment from the vertical state to the horizontal state, and the whole hoisting process is finished.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various changes without departing from the spirit and the scope of the invention as claimed.

Claims

1. The circular ring type balance beam for replacing the high-altitude vertical equipment is characterized by comprising an inner retainer ring and an outer retainer ring concentrically arranged outside the inner retainer ring, wherein plate-type lifting lugs are respectively connected to two sides of the outer retainer ring, and the two plate-type lifting lugs are symmetrically arranged at an angle of 180 degrees; tube-axis type lifting lugs are respectively arranged on two sides of each plate-type lifting lug, and the four tube-axis type lifting lugs are symmetrically arranged in the transverse and longitudinal directions; the pipe shaft type lifting lug is connected between the outer retainer ring and the inner retainer ring through a horizontal axis, and a space is reserved between the axis of the pipe shaft type lifting lug and the central line of the plate type lifting lug.

2. The circular ring type balance beam for replacing high-altitude vertical equipment according to claim 1, wherein two fixing pieces symmetrically arranged at an angle of 180 degrees are connected between the outer retainer ring and the inner retainer ring, and the axes of the two fixing pieces are perpendicular to the central connecting line of the two plate type lifting lugs.

3. The annular balance beam for high-altitude vertical equipment replacement according to claim 1, wherein two plate-type lifting lugs are arranged at 90 ° and 270 ° positions of the annular balance beam respectively, and four tube-shaft-type lifting lugs are arranged at 82 °, 98 °, 262 ° and 278 ° positions of the annular balance beam respectively.