A rust removal hanging basket suspension device for the inner wall of an external floating roof storage tank

Abstract

The utility model belongs to the technical field of storage tank suspension equipment, concretely relates to a rust removal hanging basket suspension device for the inner wall of outer floating roof tank, which comprises an outer floating roof tank, a wind-resisting ring and a connecting support for reinforcing the wind-resisting ring are fixedly connected to the outer wall of the outer floating roof tank, a fixed support frame is further arranged on the outer floating roof tank, a suspension cross beam is connected to the fixed support frame, a set of front-to-rear penetrating connecting holes are further arranged on the suspension cross beam, a rotating frame and a fixed frame are respectively arranged at the two ends of the suspension cross beam, a roller for guiding a steel wire rope is fixedly connected to the top end of the suspension vertical beam, a fixed mounting plate is further arranged on the wind-resisting ring, and a hanging basket is further arranged in the outer floating roof tank. The utility model ensures the balance and stability of the suspension device through the arrangement of support points and anchoring points, so that the hanging basket can be safely suspended on the tank top, the hanging basket can be operated up and down, the requirements of operators for working in the hanging basket can be met, and the utility model has simple structure and low manufacturing cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of tank suspension equipment, specifically relating to a rust removal basket suspension device for the inner wall of an external floating roof tank. Background Technology

[0002] External floating roof tanks are mainly used to store volatile petroleum products such as crude oil, gasoline, or kerosene. The floating roof of an external floating roof tank is a floating cover that floats on the surface of the stored liquid, rising and falling with the input and output of the liquid. There is an annular space between the floating roof and the tank wall, and this annular space has a sealing device to isolate the liquid inside the tank from the atmosphere when the top cover rises and falls, thereby greatly reducing the evaporation loss of the stored liquid during storage. For sandblasting and rust removal, partial modification, and maintenance of the inner wall of external floating roof tanks in petrochemical engineering, conventional safety measures for working at height involve erecting full-span scaffolding. Scaffolding not only poses significant safety hazards but also has high construction costs. Furthermore, due to the narrow width and lack of a roof on the external floating roof tank platform, conventional suspended platform counterweights cannot be installed, nor can the rotating suspended platform used for rust removal on the inner wall of fixed-roof tanks. Against this backdrop, optimizing the suspension device and fixing it to the top ring of the floating roof tank wall plate and wind-resistant ring to enable high-altitude operations suspended inside the tank using this platform has become a research direction. Utility Model Content

[0003] The purpose of this utility model is to solve the problems existing in the background art and provide a suspension device for the rust removal basket of the inner wall of an external floating roof tank. By setting support points and anchor points, the balance and stability of the suspension device are ensured, thereby ensuring that the basket can be safely suspended on the top of the tank and can move up and down, meeting the requirements of operators working in the basket. Moreover, the structure is simple and the manufacturing cost is low.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a suspension device for a rust removal basket on the inner wall of an external floating roof tank, comprising... An external floating roof tank is provided, with a wind-resistant ring and a connecting bracket for reinforcing the wind-resistant ring fixedly connected to its outer wall. A fixed support frame is also provided on the external floating roof tank, with a suspension beam connected to it. The suspension beam has a set of through-holes. A rotating frame and a fixed frame are respectively provided at both ends of the suspension beam. The rotating frame is located above the wind-resistant ring, and the fixed frame is located at the upper end of the external floating roof tank. A vertical suspension beam is also vertically installed at the upper end of the suspension beam corresponding to the position of the fixed support frame. A roller for guiding the wire rope is fixed to the top of the vertical suspension beam. A fixed mounting plate is also provided on the wind-resistant ring, located directly below the suspension beam. A hook is connected to the fixed mounting plate. The fixed support frame is fastened to the inner wall of the external floating roof tank, and the fixed mounting plate is fastened to the wind-resistant ring. A suspended basket is also provided inside the external floating roof tank, and the suspended basket is connected to the fixed support frame, suspension beam, suspension beam, and fixed mounting plate via wire ropes.

[0005] Furthermore, the fixed support frame includes a support plate, four legs, a tightening screw, a top block, a support column, and a connecting frame. The four legs are respectively installed at the four corners of the bottom surface of the support plate. Two legs are engaged with the inner wall of the outer floating roof tank, and the other two legs are engaged with the outer wall of the outer floating roof tank. Vertical tightening screws are also connected to the two legs on the outer wall. A crossbar is connected to the outer end of the tightening screw, and the top block is connected to the inner end. A fastening nut is threaded onto the tightening screw, and the tightening screw is fixed to the legs by the fastening nut. The support column is vertically fixed to the support plate, and the connecting frame is horizontally fixed to the top of the support column. The connecting frame is also provided with a set of connecting holes, through which it is fixed to the suspension beam.

[0006] Furthermore, the fixed mounting plate includes an outer fixing plate and an inner fixing plate. The lower end of the inner fixing plate has a slot for engaging with the edge of the wind-resistant ring, and the upper end has a through hole for a connecting hook and two straight slot holes. The lower end of the outer fixing plate has an L-shaped bracket for engaging with the outer wall of the wind-resistant ring, and the upper end has a through hole for a connecting hook and two bolt holes. The bolt holes are located in the straight slot holes. The outer fixing plate and the inner fixing plate are fastened to the wind-resistant ring by bolts.

[0007] Furthermore, the wire rope includes a traction rope and a pull rope. The first end of the traction rope is fixed on the rotating frame, passes through the roller at the top of the suspension beam, and is connected to the fixed frame in a rolling manner. Finally, it extends vertically into the floating roof tank, and the end is fixedly connected to the basket. One end of the pull rope is fixed to the suspension beam, and the other end is fixedly connected to the fixed mounting plate.

[0008] Furthermore, one end of the rotating frame is rotatably connected to the suspension beam by bolts, and the other end is fastened to a steel wire rope. The lower end of the fixed frame is fixedly connected to the other end of the suspension beam by bolts, and its upper end extends outward at an angle, with rollers for guiding the steel wire rope installed inside.

[0009] Furthermore, reinforcing ribs are provided at the connection points of the bracket plate, support column, and connecting frame.

[0010] The beneficial effects of this utility model are: 1) This utility model fixes the suspension beam to the edge of the floating roof tank through a fixed support frame, and fixes the basket to the inner wall of the floating roof tank through a fixed mounting plate and wire rope connection. The fixed mounting plate is fixedly connected to the wind-resistant ring, and the rear end of the suspension beam is tightened by the wire rope to enhance the stability of the suspension beam. It is safe and reliable. The fixed support frame and fixed mounting plate are made of ordinary carbon steel, which is simple to process and manufacture and has low assembly precision requirements. All parts are fastened by bolts, which makes assembly and use convenient and saves costs. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0012] Figure 2 This is the front view of the present invention.

[0013] Figure 3 This is a half-sectional view of the present invention.

[0014] Figure 4 This is a partial structural schematic diagram of the present invention.

[0015] In the diagram: 1. External floating roof tank; 2. Wind-resistant ring; 3. Connecting bracket; 4. Fixed support frame; 5. Suspension beam; 6. Connecting hole; 7. Rotating frame; 8. Fixed frame; 9. Suspension vertical beam; 10. Roller; 11. Fixed mounting plate; 12. Hook; 13. Suspended basket; 14. Wire rope; 4-1. Support plate; 4-2. Outrigger; 4-3. Tightening screw; 4-4. Top block; 4-5. Support column; 4-6. Connecting frame; 4-7. Crossbar; 4-8. Fastening nut; 11-1. Outer fixing plate; 11-2. Inner fixing plate; 11-3. Groove; 11-4. Through hole; 11-5. Straight groove hole; 11-6. L-frame; 11-7. Bolt hole; 14-1. Traction rope; 14-2. Pull rope; 15. Reinforcing rib. Detailed Implementation

[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0017] Example: As shown in the figure, the suspension device for rust removal basket of the inner wall of an external floating roof tank according to this utility model includes an external floating roof tank 1. A wind-resistant ring 2 and a connecting bracket 3 for reinforcing the wind-resistant ring 2 are fixedly connected to the outer wall of the external floating roof tank 1. A fixed support frame 4 is also provided on the external floating roof tank 1. A suspension beam 5 is connected to the fixed support frame 4. A set of through-holes 6 are provided on the suspension beam 5. A rotating frame 7 and a fixed frame 8 are respectively provided at both ends of the suspension beam 5. The rotating frame 7 is located at the upper end of the wind-resistant ring 2, and the fixed frame 8 is located at the upper end of the external floating roof tank 1. The upper end of the suspension beam 5 corresponds to... A suspension beam 9 is vertically installed at the location of the fixed support frame 4. A roller 10 for guiding the wire rope 14 is fixedly connected to the top of the suspension beam 9. A fixed mounting plate 11 is also provided on the wind-resistant ring 2. The fixed mounting plate 11 is located directly below the suspension beam 5. A hook 12 is connected to the fixed mounting plate 11. The fixed support frame 4 is fastened to the inner wall of the outer floating roof tank 1. The fixed mounting plate 11 is fastened to the wind-resistant ring 2. A basket 13 is also provided inside the outer floating roof tank 1. The basket 13 is connected to the fixed support frame 4, the suspension beam 5, the suspension beam 9 and the fixed mounting plate 11 through the wire rope 14. The fixed support frame 4, the suspension crossbeam 5 and the suspension vertical beam 9 are made of steel plates, channel steel and fastening bolts. The suspension crossbeam 5 is detachably connected to the fixed support frame 4 by bolts, which makes it easy to adjust the distance between the front and rear arms so that the basket 13 fits the inner wall of the floating roof tank, which is convenient for construction operations. It also makes it easy to adjust the fixed position of the wire rope 14 and the fixed installation plate 11 to ensure balance and stability.

[0018] The fixed support frame 4 includes a support plate 4-1, four legs 4-2, tightening screws 4-3, a top block 4-4, a support column 4-5, and a connecting frame 4-6. The four legs 4-2 are respectively installed at the four corners of the bottom surface of the support plate 4-1. Two legs 4-2 are engaged with the inner wall of the outer floating roof tank 1, and the other two legs 4-2 are engaged with the outer wall of the outer floating roof tank 1. The two legs 4-2 on the outer wall are also connected to vertical tightening screws 4-3. The outer end of the tightening screw 4-3 is connected to the crossbar 4-7, and the inner end is connected to the top block 4-4. The tightening screw 4-3 is threaded with a fastening nut 4-8. The tightening screw 4-3 is fixed to the support leg 4-2 by the fastening nut 4-8. The support column 4-5 is vertically fixed to the bracket plate 4-1. The top of the support column 4-5 is horizontally fixed to the connecting frame 4-6. The connecting frame 4-6 is also provided with a set of connecting holes 6, which are fixed to the suspension beam 5. The outriggers 4-2 are arranged in pairs, with each pair straddling the floating roof tank. One pair remains in contact with the inner wall of the floating roof tank, while the other pair is secured to the outer wall of the floating roof tank by adjusting the tightening screws 4-3. This ensures that the support plate 4-1 is horizontally fixed to the edge of the floating roof tank. The center of gravity of the support column 4-5 is located on the wall thickness of the floating roof tank, so that the weight of the fixed support frame 4 is borne by the wall thickness of the floating roof tank, improving the structure's compressive strength and preventing tipping. The connecting frame 4-6 at the top of the support column 4-5 is horizontally fixed and points towards the center of the floating roof tank. This ensures that the suspension crossbeam 5 and suspension vertical beam 9 on the connecting frame 4-6 both point towards the center of the floating roof tank, preventing the basket 13 from shifting vertically during lifting and lowering.

[0019] The fixed mounting plate 11 includes an outer fixing plate 11-1 and an inner fixing plate 11-2. The lower end of the inner fixing plate 11-2 has a slot 11-3 that engages with the edge of the wind-resistant ring 2, and the upper end has a through hole 11-4 for connecting hook 12 and two straight slot holes 11-5. The lower end of the outer fixing plate 11-1 has an L-shaped bracket 11-6 that engages with the outer wall of the wind-resistant ring 2, and the upper end has a through hole 11-4 for connecting hook 12 and two bolt holes 11-7. The screw holes are located in the straight slot holes 11-5. The outer fixing plate 11-1 and the inner fixing plate 11-2 are fastened to the wind-resistant ring 2 by bolts. During installation, the outer fixing plate 11-1 is limited from the outer wall of the wind-resistant ring 2 by the L-frame 11-6, and the inner fixing plate 11-2 is limited by engaging with the edge of the wind-resistant ring 2 through the slot 11-3. The two are then fastened together with bolts, so that the fixing plate 11 is firmly fixed to the wind-resistant ring 2, and the suspension beam 5 is tightened with the wind-resistant ring 2 as the anchor point. During connection, the connection position of the outer fixing plate 11-1 and the inner fixing plate 11-2 can be adjusted through the allowance of the straight slot 11-5, so that the fixing plate 11 is limited and connected from both the outside and inside, thereby improving the structural strength.

[0020] The wire rope 14 includes a traction rope 14-1 and a pull rope 14-2. The first end of the traction rope 14-1 is fixed on the rotating frame 7. After passing the roller 10 at the top of the suspension beam 9, it is connected to the fixed frame 8 in a rolling manner. Finally, it extends vertically into the floating roof tank and is fixedly connected to the basket 13 at its end. One end of the tension rope is fixed on the suspension beam 5, and the other end is fixedly connected to the fixed mounting plate 11.

[0021] One end of the rotating frame 7 is rotatably connected to the suspension beam 5 by bolts, and the other end is fastened to the wire rope 14. The lower end of the fixed frame 8 is fixedly connected to the other end of the suspension beam 5 by bolts, and its upper end extends outward at an angle, with rollers 10 installed inside to guide the wire rope 14. When the wire rope 14 is under force, it is guided by the rollers 10, so that the tension is shared by the suspension beam 5, the fixed support frame 4, and the fixed mounting plate 11.

[0022] Reinforcing ribs 15 are provided at the joints of the support plate 4-1, support column 4-5, and connecting frame 4-6. The reinforcing ribs 15 improve the structural strength of the joints.

[0023] In practical use, each suspended platform 13 is equipped with two sets of fixed support frames 4 and two sets of fixed mounting plates 11. The spacing between the fixed support frames 4 is the same as the width of the suspended platform 13, so that the wire ropes 14 pull the two sides of the suspended platform 13 respectively. The wire ropes 14 are wound or released by the rotating motor installed on the suspended platform 13 to ensure that the suspended platform 13 can be raised and lowered vertically. The wire ropes 14 on the fixed mounting plates 11 should avoid the guardrail of the wind-resistant ring 2. The fixed support frame 4 uses the top of the storage tank as the support point and sits on the wall panel of the tank top, so that the two support legs 4-2 on the right end are close to the inner wall of the storage tank. The outer wall is tightened by the fastening nuts 4-8 on the support legs 4-2. The fastening is to install fastening nuts 4-8 on both the front and back of the support legs 4-2 to prevent the tightening screw 4-3 from shaking. The fixed mounting plate 11 and the top of the wind-resistant ring 2 serve as support points. They are snapped onto the wall panel and fixed by the bends and grooves 11-3 on the inner fixed plate 11-2 and the outer fixed plate 11-1. The fixed mounting plate 11 is located at the anchor point, and the fixed support rod is tightened by the steel wire rope 14.

[0024] The balance and stability of the suspension device are ensured by setting support points and anchor points, thereby guaranteeing that the suspended platform 13 can be safely suspended on the tank top, allowing for vertical movement of the platform 13 and meeting the requirements for operators working inside the platform 13. The tooling used is manufactured according to the actual site conditions, with simple processing technology, readily available materials, lightweight and easy-to-operate accessories, facilitating the movement of the suspended platform 13 on site. Actual field use has proven its safety, reliability, and ease of operation, making it a valuable reference for other large external floating roof tanks with similar structures.

[0025] This utility model uses a fixed support frame to fix the suspension beam to the edge of the floating roof tank, and a fixed mounting plate and wire rope to fix the basket to the inner wall of the floating roof tank. The fixed mounting plate is fixedly connected to the wind-resistant ring, and the rear end of the suspension beam is tightened by the wire rope to enhance the stability of the suspension beam. It is safe and reliable. The fixed support frame and fixed mounting plate are made of ordinary carbon steel, which is simple to process and manufacture and has low assembly precision requirements. All components are fastened by bolts, which makes assembly and use convenient and cost-effective.

[0026] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A suspension device for a rust removal basket on the inner wall of an external floating roof tank, characterized in that: The system includes an external floating roof tank. A wind-resistant ring and a connecting bracket for reinforcing the wind-resistant ring are fixedly connected to the outer wall of the external floating roof tank. A fixed support frame is also provided on the external floating roof tank, and a suspension beam is connected to the fixed support frame. The suspension beam has a set of through-holes. A rotating frame and a fixed frame are respectively provided at both ends of the suspension beam. The rotating frame is located at the upper end of the wind-resistant ring, and the fixed frame is located at the upper end of the external floating roof tank. A vertical suspension beam is also vertically installed at the upper end of the suspension beam corresponding to the position of the fixed support frame. A roller for guiding the wire rope is fixed to the top of the vertical suspension beam. A fixed mounting plate is also provided on the wind-resistant ring, located directly below the suspension beam. A hook is connected to the fixed mounting plate. The fixed support frame is fastened to the inner wall of the external floating roof tank, and the fixed mounting plate is fastened to the wind-resistant ring. A suspended basket is also provided inside the external floating roof tank. The suspended basket is connected to the fixed support frame, suspension beam, suspension beam, and fixed mounting plate via wire ropes.

2. The suspension device for rust removal basket on the inner wall of an external floating roof tank according to claim 1, characterized in that: The fixed support frame includes a support plate, four legs, a tightening screw, a top block, a support column, and a connecting frame. The four legs are respectively installed at the four corners of the bottom surface of the support plate. Two legs are engaged with the inner wall of the outer floating roof tank, and the other two legs are engaged with the outer wall of the outer floating roof tank. The two legs on the outer wall are also connected to vertical tightening screws. The outer end of the tightening screw is connected to a crossbar, and the inner end is connected to the top block. A fastening nut is threaded onto the tightening screw, which fixes the tightening screw to the legs. The support column is vertically fixed to the support plate, and the top of the support column is horizontally fixed to the connecting frame. The connecting frame is also provided with a set of connecting holes, through which it is fixed to the suspension beam.

3. The suspension device for rust removal basket on the inner wall of an external floating roof tank according to claim 1, characterized in that: The fixed mounting plate includes an outer fixing plate and an inner fixing plate. The lower end of the inner fixing plate has a slot for engaging with the edge of the wind-resistant ring, and the upper end has a through hole for a connecting hook and two straight slot holes. The lower end of the outer fixing plate has an L-shaped bracket for engaging with the outer wall of the wind-resistant ring, and the upper end has a through hole for a connecting hook and two bolt holes. The bolt holes are located in the straight slot holes. The outer fixing plate and the inner fixing plate are fastened to the wind-resistant ring by bolts.

4. The suspension device for rust removal basket on the inner wall of an external floating roof tank according to claim 1, characterized in that: The wire rope includes a traction rope and a pull rope. The first end of the traction rope is fixed on the rotating frame. After passing the roller at the top of the suspension beam, it is connected to the fixed frame in a rolling manner. Finally, it extends vertically into the floating roof tank and is fixedly connected to the basket at the end. One end of the pull rope is fixed to the suspension beam, and the other end is fixedly connected to the fixed mounting plate.

5. The suspension device for rust removal basket on the inner wall of an external floating roof tank according to claim 1, characterized in that: One end of the rotating frame is rotatably connected to the suspension beam by bolts, and the other end is fastened to a steel wire rope. The lower end of the fixed frame is fixedly connected to the other end of the suspension beam by bolts, and its upper end extends outward at an angle, with rollers for guiding the steel wire rope installed inside.

6. The suspension device for rust removal basket on the inner wall of an external floating roof tank according to claim 2, characterized in that: The connection points of the bracket plate, support column and connecting frame are all equipped with reinforcing ribs.

Images