Boiler water-cooled wall single-piece hoisting structure

Abstract

The utility model discloses a boiler water-cooled wall single sheet hoisting structure, a water-cooled wall single sheet is provided with a plurality of mutually parallel furnace tubes, two adjacent furnace tubes are connected through flat steel, the hoisting structure comprises a hoisting positioning hole and a hoisting tool, the hoisting positioning hole is arranged at the upper part of the flat steel, the hoisting tool is matched with the hoisting positioning hole, the hoisting positioning hole is a vertical long hole, and the hoisting tool is matched with the hoisting positioning hole. The hoisting tool is provided with an inserting plate matched with the vertical long hole, the inserting plate is limited through a plug pin, the inserting plate is connected with a hoisting lug plate through a connecting steel plate, the hoisting lug plate is parallel to the inserting plate, and a hoisting hole and a hanging rope penetrating hole are formed in the hoisting lug plate. The vertical hoisting positioning long holes are formed in the connecting flat steel of the water-cooled wall single piece, the hoisting tool with the inserting plate is inserted into the hoisting positioning long holes, the bolts are adopted for connection, mounting and dismounting are easy and convenient, mounting can be rapidly completed, then lifting can be carried out, and after lifting is completed, dismounting and withdrawing can be rapidly carried out, operation is easy and convenient, and cost is low. The efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology, and in particular to a single-piece hoisting structure for boiler water-cooled walls. Background Technology

[0002] The water-cooled wall is the main heat-receiving part of the boiler. It consists of several rows of steel tubes distributed around the boiler furnace. Its interior contains flowing water or steam, while it receives heat from the flames in the furnace. It primarily absorbs the radiant heat from the high-temperature combustion products in the furnace, and the working fluid rises within it, evaporating upon heating.

[0003] The hoisting of boiler water-cooled walls has always been a challenge in boiler installation projects, especially for large boiler water-cooled walls with large length and width dimensions, mainly because there is no suitable hoisting structure.

[0004] At the installation site of a newly built petrochemical plant, the hoisting of a single water-cooled wall section is a high-risk operation. During the lifting process, multiple lifting lugs need to be welded onto the water-cooled wall section. After the lifting is completed, all lifting lugs need to be cut off, and the cut areas need to be ground smooth. This high-altitude operation is inconvenient, poses safety hazards, involves a large workload, high labor intensity, and low efficiency. Utility Model Content

[0005] This utility model provides a single-piece hoisting structure for boiler water-cooled walls to solve the technical problems existing in the prior art. The hoisting structure is simple, convenient and efficient to operate.

[0006] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is: a single-piece hoisting structure for a boiler water-cooled wall, wherein the single-piece water-cooled wall is provided with multiple parallel furnace tubes, and adjacent furnace tubes are connected by flat steel. The hoisting structure includes a hoisting positioning hole opened on the upper part of the flat steel and a hoisting fixture that cooperates with the hoisting positioning hole. The hoisting positioning hole is a vertical elongated hole. The hoisting fixture is provided with an insert plate that matches the vertical elongated hole. The insert plate is limited by a pin. The insert plate is connected to a hoisting ear plate through a connecting steel plate. The hoisting ear plate is parallel to the insert plate. The hoisting ear plate is provided with a hoisting hole and a rope through hole.

[0007] The vertical elongated hole has three arranged side by side, and the hoisting fixture has three insert plates that correspond one-to-one with the vertical elongated hole.

[0008] The vertical elongated holes are evenly arranged, and a furnace tube is provided between two of the vertical elongated holes.

[0009] The connecting steel plate is arranged parallel to the water-cooled wall piece, the insert plate is centered and vertically fixed to the front side of the connecting steel plate, and the lifting ear plate is centered and vertically fixed to the rear side of the connecting steel plate.

[0010] The advantages and positive effects of this utility model are as follows: By setting vertical lifting positioning elongated holes on the connecting flat steel of a single water-cooled wall piece, and inserting a lifting tool with a plug plate into the lifting positioning elongated holes, and using a pin connection, installation and disassembly are simple and can be completed quickly. After installation, it can be lifted and then quickly removed. The installation and disassembly require less labor, which can save labor costs, reduce construction difficulty, avoid operational risks, and reduce safety hazards. It reduces waste and lowers costs. It can replace the traditional welding lugs for lifting water-cooled walls, reduce weld scars on furnace tubes, save time and labor, and can significantly improve work efficiency, reduce labor intensity, and shorten the construction period. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the lifting fixture of this utility model;

[0013] Figure 3 This is a schematic diagram of the single-piece structure of the boiler water-cooled wall of this utility model.

[0014] In the diagram: 1. Water-cooled wall panel; 2. Furnace tube; 3. Lifting positioning hole; 4. Lifting hole; 5. Rope hole; 6. Insert plate; 7. Pin hole; 8. Connecting steel plate; 9. Lifting ear plate. Detailed Implementation

[0015] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0016] Please see Figures 1-3 A single-piece hoisting structure for a boiler water-cooled wall 1 is provided, wherein the single water-cooled wall 1 is provided with multiple parallel furnace tubes 2, and adjacent furnace tubes 2 are connected by flat steel. The hoisting structure includes a hoisting positioning hole 3 opened on the upper part of the flat steel and a hoisting fixture that cooperates with the hoisting positioning hole 3. The hoisting positioning hole 3 is a vertical elongated hole. The hoisting fixture is provided with an insert plate 6 that matches the vertical elongated hole. The insert plate 6 is provided with a pin hole 7. The insert plate 6 is limited by a pin (not shown in the figure). The pin is inserted into the pin hole 7. The insert plate 6 is connected to a hoisting ear plate 9 through a connecting steel plate 8. The hoisting ear plate 9 is parallel to the insert plate 6. The hoisting ear plate 9 is provided with a hoisting hole 4 and a rope hanging hole 5.

[0017] The more preferred solution in this embodiment is as follows:

[0018] The vertical elongated hole has three side by side, and the lifting fixture has three insert plates 6 that correspond one-to-one with the vertical elongated hole, which provides good lifting stability.

[0019] The vertical elongated holes are evenly arranged, and a furnace tube 2 is provided between two vertical elongated holes. The centralized arrangement of the vertical elongated holes can reduce the volume and weight of the hoisting fixtures.

[0020] The connecting steel plate 8 is arranged parallel to the water-cooled wall unit 1. The insert plate 6 is centered and vertically fixed to the front side of the connecting steel plate 8, and the lifting ear plate 9 is centered and vertically fixed to the rear side of the connecting steel plate 8. The structure is compact and reasonable, and has good stress performance.

[0021] Use of this embodiment:

[0022] Three insert plates 6 are inserted vertically into the lifting positioning holes 3 along the water-cooled wall unit 1 and secured with pins. Steel cables are then attached to the lifting holes 4 to lift the water-cooled wall unit 1. Ropes are attached to the rope holes 5, and after the water-cooled wall unit is in place, it is secured using the ropes. The lifting positioning holes are primarily for lifting the water-cooled wall unit; the rope holes are mainly for securing the water-cooled wall unit using the steel structure beams on the boiler wall. In application, steel wire ropes and clips are connected to the rope holes 5. When the crane lifts the water-cooled wall unit into place, the steel wire ropes and clips are opened and secured to the steel structure beams to achieve the water-cooled wall unit's suspension. A chain hoist is then used to adjust the position of the water-cooled wall unit, and assembly welding is completed. After welding, the clips are opened to detach the water-cooled wall unit and lifting fixture from the steel structure beam. Then, the pins are pulled out to detach the lifting fixture from the water-cooled wall unit, and the lifting fixture is removed.

[0023] The aforementioned hoisting structure is easy to install and dismantle, allowing for rapid installation followed by lifting. After lifting, it can be quickly removed and withdrawn. Installation and dismantling require minimal labor, saving on labor costs, reducing construction difficulty, mitigating operational risks, and minimizing safety hazards. It also reduces waste and lowers costs. Furthermore, it can replace traditional welded lifting lugs for hoisting water-cooled walls, reducing weld scars on furnace tubes, saving time and effort, and offering simple and convenient operation. This significantly improves work efficiency, reduces labor intensity, and shortens the construction period.

[0024] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and these all fall within the protection scope of the present invention.

Claims

1. A single-piece hoisting structure for a boiler water-cooled wall, wherein the single water-cooled wall piece is provided with multiple parallel furnace tubes, and adjacent furnace tubes are connected by flat steel, characterized in that, The hoisting structure includes a hoisting positioning hole on the upper part of the flat steel and a hoisting fixture that mates with the hoisting positioning hole. The hoisting positioning hole is a vertical elongated hole. The hoisting fixture is provided with an insert plate that matches the vertical elongated hole. The insert plate is limited by a pin. The insert plate is connected to a hoisting ear plate through a connecting steel plate. The hoisting ear plate is parallel to the insert plate. The hoisting ear plate is provided with a hoisting hole and a rope hanging hole.

2. The boiler water-cooled wall single-piece hoisting structure according to claim 1, characterized in that, The vertical elongated hole has three arranged side by side, and the hoisting fixture has three insert plates that correspond one-to-one with the vertical elongated hole.

3. The boiler water-cooled wall single-piece hoisting structure according to claim 1, characterized in that, The vertical elongated holes are evenly arranged, and a furnace tube is provided between two of the vertical elongated holes.

4. The boiler water-cooled wall single-piece hoisting structure according to claim 1, characterized in that, The connecting steel plate is arranged parallel to the water-cooled wall piece, the insert plate is centered and vertically fixed to the front side of the connecting steel plate, and the lifting ear plate is centered and vertically fixed to the rear side of the connecting steel plate.

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