A hoisting cage for cleaning the triangular heat dissipation plates of an indirect cooling tower

Abstract

This application discloses a cage for cleaning triangular heat exchange plates in indirect cooling towers. The cage is a triangular structure adapted to the triangular cavity formed by the triangular heat exchange plates in the indirect cooling tower, and can be vertically placed in the triangular cavity and close to each heat exchange plate. The cage consists of a triangular base plate, vertically upward vertical support columns connected to the corners of the triangular base plate, and horizontal rods connecting adjacent vertical support columns. The horizontal rods are spaced vertically on the adjacent vertical support columns, and each vertical support column is provided with a lifting ring at its top. This cage, with its triangular structure adapted to the triangular cavity formed by the triangular heat exchange plates in the indirect cooling tower, "fills" the triangular cavity after being placed inside, allowing the operator to fully contact the surface of each heat exchange plate, achieving a complete cleaning operation. This solves the drawback of current square cage structures, which prevent operators from contacting and cleaning the corners where adjacent heat exchange plates meet.

Description

Technical Field

[0001] This application relates to the field of indirect cooling tower cleaning construction technology, and in particular to a cage for cleaning the triangular heat dissipation plate of an indirect cooling tower. Background Technology

[0002] Indirect air cooling towers are key cooling facilities in thermal power plants employing indirect air-cooling technology. They achieve cooling of circulating water through heat exchange between air and circulating water, offering advantages such as water conservation, energy saving, environmental protection, and high efficiency, and are widely used in thermal power generation. During prolonged use, indirect cooling towers require regular cleaning of their heat dissipation plates. This is primarily to prevent dirt accumulation and maintain heat exchange efficiency; extend equipment lifespan and reduce corrosion risks; ensure unobstructed airflow and prevent localized overheating; and prevent safety hazards and ensure safe operation.

[0003] Cleaning indirect cooling towers requires a hoisting cage for hoisting cleaning personnel and equipment. The heat dissipation plates of the indirect cooling tower are a triangular structure consisting of three heat dissipation plates (structure as follows). Figure 1 As shown in the diagram, when a conventional square (frame) cage is lowered into the triangular cavity of the heat exchange plate, the operator cannot effectively contact all surfaces of each heat exchange plate (such as the joint between adjacent heat exchange plates, i.e., the triangular tip), resulting in incomplete cleaning of the heat exchange plates and affecting the cooling effect of thermal power generation. At the same time, during the lowering process of the conventional cage, the influence of several tie (support) rods on the frame between the heat exchange plates causes the cage to be obstructed during lowering, preventing it from being lowered smoothly. This also makes the cage prone to tilting, posing a safety hazard. Summary of the Invention

[0004] To address the aforementioned problems, this application aims to provide a hoisting cage for cleaning triangular heat exchange plates in indirect cooling towers. This cage has a triangular structure, which allows operators to fully contact the surface of each heat exchange plate, enabling a complete cleaning operation. This solves the drawback of the current square cage structure, which prevents operators from cleaning the corners where adjacent heat exchange plates meet.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a cage for cleaning the triangular heat dissipation plates of an indirect cooling tower, wherein the cage is a triangular structure adapted to the triangular cavity formed by the triangular heat dissipation plates of the indirect cooling tower, and the cage can be placed vertically downward in the triangular cavity and close to each heat dissipation plate; the triangular structure consists of a triangular base plate, several vertical support columns connected vertically upward at the corners of the triangular base plate, and several horizontal rods connecting adjacent vertical support columns horizontally, wherein the horizontal rods are spaced vertically on the adjacent vertical support columns, and each vertical support column is provided with a lifting ring at its top.

[0006] Preferably, connecting sleeves are provided at the three corners of the triangular base plate and at the end of each horizontal bar. Three vertical support columns are provided and are respectively inserted into the connecting sleeves at the end of the horizontal bars and the connecting sleeves at the three corners of the triangular base plate, and are connected and fixed by connecting bolts horizontally inserted into the connecting sleeves and the vertical support columns.

[0007] Preferably, each of the horizontal bars is configured as a telescopic bar structure. By adjusting the extension and retraction of each horizontal bar, the size and shape of the triangular structure can be changed to adapt to different triangular cavities formed by the triangular heat dissipation plate of the indirect cooling tower.

[0008] Preferably, each of the connecting sleeves is inclined, and by adjusting the extension and retraction of the corresponding horizontal rod, the vertical support column is inclined outward, thereby making the triangular structure a cone-shaped structure that is larger at the top and smaller at the bottom.

[0009] Preferably, a detachable hollow hemisphere is connected to the bottom of the triangular base plate, and the top of the hollow hemisphere surrounds the triangular base plate.

[0010] The beneficial effects of this application are: the cage is a triangular structure adapted to the triangular cavity formed by the triangular heat dissipation plates of the indirect cooling tower. After being placed in the triangular cavity, it "fills" the triangular cavity, allowing the operator to fully contact the surface of each heat dissipation plate and achieve a complete cleaning operation. This solves the drawback of the current square cage structure, which prevents the operator from contacting and cleaning the corners of adjacent heat dissipation plates.

[0011] The cage consists of a triangular base plate, vertical support columns, and horizontal bars, forming a frame structure. This design reduces the cage's weight while maintaining strength, thus lowering processing difficulty and manufacturing costs. Each horizontal bar is designed as a telescopic structure, allowing for adjustments to the cage size to accommodate cleaning operations on the heat exchange plates of different indirect cooling towers.

[0012] By tilting each connecting sleeve, the triangular base plate at the bottom of the cage is smaller than the inner width of the triangular cavity, and the edges and corners of the triangular base plate are far away from the tie rod of the support. Thus, under the normal swaying action when the cage is lowered, it will not contact the tie rod of the support, thereby achieving smooth lowering of the cage.

[0013] Similarly, by detachably assembling a hollow hemisphere at the bottom of the triangular base plate, the circular surface of the hollow hemisphere solves the problem of "hooking" when the cage comes into contact with the tie rod of the support during the lowering process, thus enabling the cage to be lowered smoothly while ensuring the effective working area of ​​the triangular base plate. Attached Figure Description

[0014] Figure 1 This is an assembly drawing of the heat dissipation plate and support frame of the indirect cooling tower.

[0015] Figure 2This is a diagram of the cage with a triangular structure according to this application.

[0016] Figure 3 The diagram illustrates the connection sleeves installed at the triangular base plate and its corners in this application.

[0017] Figure 4 This is a diagram of the cage assembled using connecting sleeves according to this application.

[0018] Figure 5 This diagram illustrates the contact between the cage body and the support rod when the cage body is lowered into the triangular cavity.

[0019] Figure 6 This is a structural diagram of the cage in Embodiment 1 of this application.

[0020] Figure 7 This is a diagram illustrating the lowering of the cage in Embodiment 1 of this application.

[0021] Figure 8 This is a structural diagram of the cage in Embodiment 2 of this application.

[0022] Figure 9 This is a diagram illustrating the lowering of the cage in Embodiment 2 of this application.

[0023] In the diagram: 1-triangular base plate; 2-vertical support column; 3-horizontal bar; 4-lifting ring; 5-connecting sleeve; 6-connecting screw; 7-hollow hemisphere; 8-bracket; 81-pull rod; 9-heat sink. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] See attached document Figures 2-4 The diagram shows a hoisting cage for cleaning the triangular heat exchange plates of an indirect cooling tower. The cage is a triangular structure adapted to the triangular cavity formed by the triangular heat exchange plates of the indirect cooling tower, and the cage can be placed vertically within the triangular cavity and close to each side of the heat exchange plate 9. Figure 1 As shown, the three heat sinks 9 are sequentially mounted on the tripod and fixed, making the heat sink cavity a triangular structure. Therefore, this application sets the cage to fit the triangular cavity structure, so that after being placed in the triangular cavity, it "fills" the triangular cavity, allowing the operator to fully contact the surface of each heat sink 9 and achieve a complete cleaning operation for each heat sink 9. This solves the drawback of the current square cage, which prevents the operator from cleaning the corners of adjacent heat sinks 9.

[0026] Specifically, such as Figure 2As shown, the triangular structure consists of a triangular base plate 1, several vertical support columns 2 connected vertically upwards to the corners of the base plate 1, and several horizontal rods 3 connecting adjacent vertical support columns 2 horizontally. The horizontal rods 3 are spaced vertically on adjacent vertical support columns 2, and each vertical support column 2 is equipped with a lifting ring 4 at its top. The cage of this structure is a frame structure, which reduces the weight of the cage while ensuring strength. During operation, the cage is hoisted and lowered into the triangular cavity by multiple lifting rings 4, while the operator stands on the triangular base plate 1 to perform cleaning operations. The horizontal rods 3, spaced vertically, serve as protective rods for the cage, ensuring the safety of the operator working at height.

[0027] To facilitate the fabrication, assembly, and relocation of the hoisting cage, such as Figure 3-4 As shown, connecting sleeves 5 are provided at the three corners of the triangular base plate 1 and at the end of each of the horizontal rods 3. Three vertical support columns 2 are provided, each passing through the connecting sleeves 5 at the end of the horizontal rods 3 and the connecting sleeves 5 at the three corners of the triangular base plate 1. This prefabricated structure allows the cage to be manufactured separately using the triangular base plate 1, vertical support columns 2, and horizontal rods 3, reducing processing difficulty and manufacturing costs.

[0028] For ease of assembly and disassembly, such as Figure 4 As shown, the vertical support column 2 and each of the connecting sleeves 5 are provided with corresponding connecting holes. After the vertical support column 2 is inserted into the connecting sleeve 5 on the horizontal rod 3 and the triangular base plate 1, the connecting sleeve 5 and the vertical support column 2 are connected and fixed by horizontally inserting connecting bolts 6, thus assembling the complete cage.

[0029] To accommodate the cleaning of heat dissipation plates 9 of different specifications of indirect cooling towers, each horizontal bar 3 is configured as a telescopic bar structure. By adjusting the telescopic reach of each horizontal bar 3 (preferably through a telescopic adjustment structure using a pin and pin hole, with each horizontal bar 3 being a sleeve-type structure), the size of the hoisting cage can be changed to accommodate the cleaning operations of different triangular cavities formed by the heat dissipation plates 9 of different indirect cooling towers. The triangular base plate 1 is an integral structure used for the standing of construction personnel and the placement of tools; therefore, the triangular base plate 1 can preferably be manufactured in various specifications to accommodate the assembly of different indirect cooling tower specifications.

[0030] like Figure 5 As shown, the heat sink 9 is mounted on the triangular bracket 8. To ensure the support strength of the bracket 8, it also has several horizontal and oblique tie rods 81. During the hoisting and lowering process, the cage is in a relatively free state. Combined with the instability of the operator's standing position, the cage will sway left and right and come into contact with a tie rod 81 when it is lowered, thus hindering the lowering of the cage and causing the cage to tilt. Figure 5(As shown on the left), therefore, to solve this problem, this application provides a solution through the following embodiments. Example

[0031] like Figure 6-7 As shown, each of the connecting sleeves 5 is inclined, and the length of the horizontal rods 3 and the side length of the triangular base plate 1 of the cage decrease sequentially from top to bottom. By adjusting the extension and retraction of the corresponding horizontal rods 3, the vertical support column 2 is inclined outward, thus making the triangular structure a cone-shaped structure that is larger at the top and smaller at the bottom. With this structure, the bottom triangular base plate 1 is smaller than the inner width of the triangular cavity, and the corners of the triangular base plate 1 are far away from the tie rod 81 of the support 8. Therefore, under the normal swaying action when the cage is lowered, it does not contact the tie rod 81 of the support 8, thus achieving smooth lowering of the cage. Example

[0032] like Figure 8-9 As shown, a detachable hollow hemisphere 7 is connected to the bottom of the triangular base plate 1, and the top of the hollow hemisphere 7 surrounds the triangular base plate 1. Preferably, a countersunk screw (not shown in the figure) passes through the top sidewall of the hollow hemisphere 7 and connects to the connecting sleeve 5 on the base plate to complete the assembly of the hollow hemisphere 7. This assembly process is carried out after the cage is lifted off the ground, and disassembly is performed when the cage is close to the ground. By using the hollow hemisphere 7, the arc surface solves the problem of "hooking" when it comes into contact with the tie rod 81 of the support 8 during the lowering of the cage, the cage can be lowered smoothly. At the same time, compared with the conical structure of embodiment 1, the effective working area of ​​the triangular base plate 1 is not reduced.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope of protection, and all such changes and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A kind of cold tower triangular heat sink cleaning construction with hanging cage, it is characterized by: The cage is a triangular structure adapted to the triangular cavity formed by the triangular heat dissipation plates of the indirect cooling tower, and the cage can be placed vertically downward in the triangular cavity and close to each heat dissipation plate. The triangular structure consists of a triangular base plate, several vertical support columns connected vertically upward at the corners of the triangular base plate, and several horizontal rods connecting adjacent vertical support columns horizontally. The horizontal rods are distributed vertically on the adjacent vertical support columns, and each vertical support column is provided with a lifting ring at its top.

2. The cage according to claim 1, characterized in that: Connecting sleeves are provided at the three corners of the triangular base plate and at the end of each horizontal rod. Three vertical support columns are provided and are respectively inserted into the connecting sleeves at the end of the horizontal rods and the connecting sleeves at the three corners of the triangular base plate, and are connected and fixed by connecting bolts horizontally inserted into the connecting sleeves and the vertical support columns.

3. The cage of claim 2, wherein: Each of the horizontal bars is configured as a telescopic bar structure. By adjusting the extension and retraction of each horizontal bar, the size and shape of the triangular structure can be changed to adapt to different triangular cavities formed by the triangular heat dissipation plates of the indirect cooling tower.

4. The cage according to claim 2, characterized in that: Each of the connecting sleeves is inclined, and by adjusting the extension and retraction of the corresponding horizontal rod, the vertical support column is inclined outward, thereby making the triangular structure a cone-shaped structure that is larger at the top and smaller at the bottom.

5. The cage of claim 1, wherein: A detachable hollow hemisphere is connected to the bottom of the triangular base plate, and the top of the hollow hemisphere surrounds the triangular base plate.

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