Hoisting system

Abstract

The utility model discloses a hoisting system, and belongs to the technical field of indoor hoisting, the hoisting system comprises a ground, a roadbed plate, a floor slab, steel beams and a winch, the roadbed plate is arranged on the ground, and the two steel beams are fixedly connected to the floor slab; after the cold box equipment is dumped, a ton winch is used for dragging the cold box equipment to the side face of a hoisting opening, the center lines of the two bottom supports of the equipment are aligned with the center line of a placed roadbed box, then a jack is used for jacking up the cold box equipment, and ballast and a steel plate are cushioned at the bottom of the cold box equipment to the same elevation of a roadbed plate; and then the equipment is put down and placed on a tank, then the equipment is dragged by a ton winch to be slowly moved to a roadbed plate, and when the whole equipment is located over a hoisting opening, translation work is completed, so that the problem of how to complete hoisting operation of the 2K cold box in an indoor limited space is solved, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of indoor hoisting, and particularly to a hoisting system. Background Art

[0002] For the equipment hoisting construction task, according to the workload and on-site environment analysis, it is planned to use a 200-ton truck crane in early September 2022 to hoist and unload imported equipment onto a temporary storage at the 4K cold box machine room in the cryogenic plant. When the injection valve box and distribution valve box arrive next March, the equipment will be vertically hoisted together to the B2 floor of the installation hall.

[0003] The outdoor hoisting and unloading process flow is as follows: the truck crane enters the site for positioning - the steel platform is erected - the transport truck enters the site and is in place - hoisting preparation work - inspection and trial hoisting (the equipment is lifted 200 mm off the ground) - the equipment is hoisted - the equipment is translated into the cryogenic plant - the tools are removed from the site.

[0004] The vertical hoisting process flow in the installation hall is as follows: the truck crane is positioned - the platform is erected - the equipment is translated out of the cryogenic plant - hoisted to the entrance of the installation hall - translated to the hoisting opening of the installation hall - vertically hoisted by a winch - the equipment reaches the B2 floor - translated to the foundation.

[0005] However, the existing hoisting equipment has great difficulties in indoor hoisting. Therefore, how to complete the hoisting operation of the 2K cold box in the limited indoor space is a major problem that needs to be solved at present.

[0006] Therefore, this application proposes a hoisting system. Utility Model Content

[0007] A hoisting system proposed in this application is to solve the problems raised in the above background art; after the cold box equipment is unloaded from the truck, it is towed to the side of the hoisting opening by a [X]-ton winch. The center lines of the two bottom supports of the equipment are aligned with the center lines of the placed roadbed boxes. Then, a jack is used to lift the cold box equipment, and sleepers and steel plates are placed under its bottom to the same elevation as the roadbed plate. Subsequently, the equipment is lowered and placed on the tank truck, and then a [X]-ton winch is used to tow the equipment to slowly move onto the roadbed plate. When the entire equipment is directly above the hoisting opening, the translation work is completed. Thus, the problem of how to complete the hoisting operation of the 2K cold box in the limited indoor space is solved, greatly improving the practicality of the device.

[0008] In order to achieve the above object, this application adopts the following technical solutions:

[0009] A hoisting system includes the ground, roadbed plates, floor slabs, steel beams and winches. The roadbed plates are arranged on the ground. Two of the steel beams are fixedly connected to the floor slab. Mounting blocks are fixedly connected to the bottoms of both of the two steel beams. First lifting rings are fixedly connected to the bottoms of both of the two mounting blocks. Two of the winches are oppositely installed on the roadbed plates. Two guiding pulleys are installed on the top of the roadbed plate and between the two winches.

[0010] As a preferred embodiment, traction steel wires are wound and connected to the two winches, and one ends of the two traction steel wires both pass through the guiding pulleys and extend into the first lifting rings;

[0011] By arranging the guiding pulleys, it is used to limit and guide the traction steel wire during the moving process, so that the traction steel wire can better achieve the traction work, thereby improving the practicability of the device.

[0012] As a preferred embodiment, widened traction ropes are fixedly connected to one ends of the two traction steel wires passing through the first lifting rings. Second lifting rings are fixedly connected to one ends of the two widened traction ropes away from the traction steel wires;

[0013] By arranging the widened traction ropes, during hoisting, the widened traction ropes are more stressed, making the cold box more stable during hoisting, thereby improving the practicability of the device.

[0014] As a preferred embodiment, connecting ropes are fixedly connected to the outsides of the two second lifting rings. Connecting columns are fixedly connected to both ends of the two connecting ropes;

[0015] By arranging the connecting ropes and the connecting columns, the connecting columns are used to install two hanging ropes for subsequent hoisting, and the connecting ropes are used to balance the connecting columns, making the hoisting more stable, thereby improving the practicability of the device.

[0016] As a preferred embodiment, a plurality of hanging ropes are fixedly connected to the outsides of the two connecting columns. Two hanging ropes are arranged on one of the connecting columns, and two hanging ropes are arranged on the other connecting column;

[0017] By arranging a plurality of hanging ropes, the cold box can be better fixed, so that the cold box is not prone to tilting, shaking and other situations during hoisting, thereby improving the practicability of the device.

[0018] As a preferred embodiment, a roadbed box center line is arranged on the roadbed plate and in the hoisting port area, and a bottom support position center line is arranged on the ground;

[0019] By setting the center line of the roadbed box and the center line of the bottom support position, it is used to align the lifting position of the cold box, which is convenient for subsequent rapid lifting, thereby improving the practicability of the device.

[0020] As a preferred embodiment, two sleepers are arranged on the ground at both ends of the center line of the bottom support position, and two steel plates are arranged on the ground on both sides of the center line of the bottom support position;

[0021] By setting the sleepers and steel plates, it is convenient for the lifting equipment to lift better during lifting, so the lifting time is saved, the lifting efficiency is improved, and the practicability of the device is thus improved.

[0022] Advantages of this application:

[0023] 1. For this hoisting system, after the cold box equipment is unloaded from the dump truck, it is towed to the side of the hoisting port by a ton winch. The center lines of the two bottom support positions of the equipment are aligned with the center line of the placed roadbed box. Then, the cold box equipment is jacked up, and sleepers and steel plates are placed under its bottom to the same elevation as the roadbed plate. Subsequently, the equipment is lowered and placed on the tank truck, and then it is towed by a ton winch to slowly move the equipment onto the roadbed plate. When the entire equipment is directly above the hoisting port, the translation work is completed. Thus, the problem of how to complete the hoisting operation of the 2K cold box in a limited indoor space is solved, greatly improving the practicability of the device;

[0024] 2. For this hoisting system, after the equipment is translated onto the roadbed plate, the rigging connection work is carried out. After the hoisting rigging is tied, through a comprehensive inspection work, especially before using the winch, it is necessary to check whether its electrical circuit is intact, whether it is operating normally, whether the control buttons are intact, whether the motor insulation is good, whether the power connectors are damaged, whether the motor is running smoothly, whether the line insulation is good, whether the brake tightness meets the requirements, whether the traction steel wire rope has broken wires and whether the stress meets the requirements. The winch must be equipped with overload protection. After confirming that there is no error, the hoisting starts. Through a series of inspection work, it is ensured that the hoisting is error-free, greatly improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the overall schematic diagram of the device of this application;

[0026] Figure 2 It is the top view schematic diagram of the device of this application;

[0027] Figure 3 It is the schematic diagram of the lifting tool of this application.

[0028] Reference numerals in the figure: 1, ground; 2, subgrade slab; 3, floor slab; 4, steel beam; 5, mounting block; 6, first lifting ring; 7, winch; 8, guiding pulley; 9, towing wire rope; 10, widened towing rope; 11, second lifting ring; 12, connecting rope; 13, connecting column; 14, hanging rope; 15, lifting opening; 16, center line of subgrade box; 17, center line of sole position; 18, sleeper; 19, steel plate. Specific implementation mode

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0030] Refer to Figures 1-3 , a hoisting system, including a ground 1, a subgrade slab 2, a floor slab 3, a steel beam 4 and a winch 7. The subgrade slab 2 is arranged on the ground 1, two steel beams 4 are fixedly connected to the floor slab 3, mounting blocks 5 are fixedly connected to the bottoms of the two steel beams 4, first lifting rings 6 are fixedly connected to the bottoms of the two mounting blocks 5, two winches 7 are oppositely installed on the subgrade slab 2, and two guiding pulleys 8 are installed on the top of the subgrade slab 2 and between the two winches 7.

[0031] Towing wire ropes 9 are wound and connected to the two winches 7, and one ends of the two towing wire ropes 9 both pass through the guiding pulleys 8 and extend into the first lifting rings 6; by arranging the guiding pulleys 8, it is used to limit and guide the towing wire ropes 9 during the moving process, so that the towing wire ropes 9 can better realize the towing work, thereby improving the practicability of the device.

[0032] One ends of the two towing wire ropes 9 passing through the first lifting rings 6 are both fixedly connected with widened towing ropes 10, and one ends of the two widened towing ropes 10 far from the towing wire ropes 9 are both fixedly connected with second lifting rings 11; by arranging the widened towing ropes 10, during hoisting, the widened towing ropes 10 are more stressed, making the cold box more stable during hoisting, thereby improving the practicability of the device.

[0033] Connecting ropes 12 are fixedly connected to the outsides of the two second lifting rings 11, and connecting columns 13 are fixedly connected to both ends of the two connecting ropes 12; by arranging the connecting ropes 12 and the connecting columns 13, the connecting columns 13 are used to install two hanging ropes 14 for subsequent hoisting, and the connecting ropes 12 are used to balance the connecting columns 13, making the hoisting more stable, thereby improving the practicability of the device.

[0034] A plurality of hanging ropes 14 are fixedly connected to the outside of the two connecting columns 13. There are two hanging ropes 14 provided on one connecting column 13 and two hanging ropes 14 provided on the other connecting column 13. By providing a plurality of hanging ropes 14, the cold box can be better fixed, so that when the cold box is hoisted, it is not easy to tilt, shake, etc., thereby improving the practicability of the device.

[0035] On the roadbed plate 2 and in the area of the hoisting port 15, there is a roadbed box center line 16, and on the ground 1, there is a bottom support position center line 17. By providing the roadbed box center line 16 and the bottom support position center line 17, it is used to align the hoisting position of the cold box, which is convenient for subsequent rapid hoisting, thereby improving the practicability of the device.

[0036] There are two sleepers 18 provided at both ends of the bottom support position center line 17 on the ground 1, and two steel plates 19 are provided on both sides of the bottom support position center line 17 on the ground 1. By providing the sleepers 18 and the steel plates 19, it is convenient for the hoisting equipment to hoist better during hoisting, so the hoisting time is saved, the hoisting efficiency is improved, and thereby the practicability of the device is improved.

[0037] Working principle: In the vertical hoisting link of the winch 7, the first step: The equipment is translated onto the roadbed plate 2. After the cold box equipment is unloaded from the truck, it is towed to the side of the hoisting port 15 by using a 1-ton winch 7. The two bottom support position center lines 17 of the equipment are aligned with the placed roadbed box center line 16, and then the cold box equipment is lifted by using a jack, and sleepers 18 and steel plates 19 are placed under its bottom to the same elevation as the roadbed plate 2. Subsequently, the equipment is lowered and placed on the tank truck, and then it is towed by using a 1-ton winch 7 to make the equipment slowly move onto the roadbed plate 2. When the entire equipment is directly above the hoisting port 15, the translation work is completed. The second step: After the equipment is translated onto the roadbed plate 2, the rigging connection work is carried out. After the hoisting rigging is tied, a comprehensive inspection work is carried out. Especially before using the winch 7, it is necessary to check whether its electrical circuit is intact, whether it is operating normally. For a 3-ton winch, the speed is 5 meters per minute for slow hoisting. Before using the winch 7, it is necessary to check whether the forward and reverse rotation is normal, whether the control button is intact, whether the motor insulation is good, whether the power connector is damaged, whether the motor runs smoothly, whether the line insulation is good, whether the brake tightening and loosening meet the requirements, whether there are broken wires in the traction steel wire rope 9 and whether the force is in line with the requirements. The winch 7 must be equipped with overload protection. After confirming that there is no error, the hoisting starts. The third step: Synchronously operate to tighten the two 3-ton winches, so that the cold box equipment slowly lifts off the ground. After the equipment has lifted off the ground by 5 centimeters, stop all operations, observe whether there are any abnormalities in each component, and let it stand for 5 minutes. After there is no problem, start the subsequent operations.

[0038] Before hoisting, directly above the hoisting opening 15, place 2 H200*200 steel beams on the roadbed slab 2, each with a length of 1 meter, coinciding with the projection position of the main structure steel beam. Drill four 100-mm floor holes along the main structure GL-33 and GL-30 steel beams. Use wire rope clamps to lead down 2 lifting points from the H-beam (the sharp edges are treated with corner protection), and install 2 3-ton winches.

[0039] The width of the hoisting opening 15 is 4.2 meters, and the width of the equipment is 3.2 meters (in the state without installing the steel platforms on both sides). The lifting points are exactly located at the center of the hoisting opening in the width direction. Therefore, the clearances on both sides of the equipment from the wellhead edge are basically the same when the equipment is lowered into the well. After installing the cover plate drive motor, the effective opening in the width direction of the wellhead is 3550. When hoisting a 3.2-meter-wide equipment, the clearance is insufficient. Therefore, the cover plate construction should be carried out after the equipment hoisting is completed.

[0040] The above is only the preferred specific implementation mode of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution and the inventive concept of the present application, makes equivalent substitutions or changes, and should be covered by the protection scope of the present application.

Claims

1. A hoisting system, comprising a ground surface (1), a roadbed (2), a floor slab (3), a steel beam (4) and a winch (7), characterized in that: The roadbed plate (2) is arranged on the ground (1), the two steel beams (4) are fixedly connected to the floor slab (3), the bottoms of the two steel beams (4) are fixedly connected to mounting blocks (5), the bottoms of the two mounting blocks (5) are fixedly connected to first lifting rings (6), the two hoists (7) are oppositely mounted on the roadbed plate (2), and two guide pulleys (8) are mounted on the top of the roadbed plate (2) and between the two hoists (7).

2. A hoisting system according to claim 1, characterized in that: The two hoists (7) are wound with traction steel wire ropes (9), and one end of the two traction steel wire ropes (9) passes through the guide pulley (8) and extends to the inside of the first lifting ring (6).

3. A hoisting system according to claim 2, characterized in that: One end of the two traction wire ropes (9) passing through the first lifting ring (6) is fixedly connected to a widened traction rope (10), and one end of the two widened traction ropes (10) away from the traction wire rope (9) is fixedly connected to a second lifting ring (11).

4. A hoisting system according to claim 3, characterized in that: The exteriors of the two second lifting rings (11) are fixedly connected to connecting ropes (12), and both ends of the two connecting ropes (12) are fixedly connected to connecting columns (13).

5. A hoisting system according to claim 4, characterized in that: A plurality of hanging ropes (14) are fixedly connected to the outside of the two connecting columns (13), wherein two hanging ropes (14) are arranged on one of the connecting columns (13), and two hanging ropes (14) are arranged on the other connecting column (13).

6. A hoisting system according to claim 1, characterized in that: A roadbed box center line (16) is provided on the roadbed plate (2) and located in the region of the lifting opening (15), and a bottom support position center line (17) is provided on the ground (1).

7. A hoisting system according to claim 1, characterized in that: Two rails (18) are arranged on the ground (1) at both ends of the center line (17) of the bottom support position, and two steel plates (19) are arranged on the ground (1) at both sides of the center line (17) of the bottom support position.

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