Cooling tower wind cylinder plate connecting structure, wind cylinder plate unit and wind cylinder

Abstract

The application discloses a cooling tower wind pipe plate connecting structure, a wind pipe plate unit and a wind pipe. The wind pipe plate connecting structure comprises a first buckling part arranged at one end of a first plate body, a second buckling part arranged at one end of a second plate body and a plurality of bolts used for connecting the first plate body and the second plate body. The first buckling part is buckled with the second buckling part. The first buckling part is provided with a plurality of first mounting holes. The second buckling part is provided with a plurality of second mounting holes which are communicated with the first mounting holes. The first buckling part is further provided with a countersunk groove which is communicated with the first mounting holes. The bolts are arranged in the first mounting holes and the second mounting holes, and the screw heads of the bolts are accommodated in the countersunk groove. The wind pipe plate is arranged in a split type of the first plate body and the second plate body, so that the production difficulty is reduced. The connection of the first buckling part and the second buckling part is limited, and the connection of the bolts is combined, so that the fixing of the wind pipe plate unit is realized.

Description

Technical Field

[0001] This application relates to the technical field of cooling towers, and in particular to a cooling tower duct plate connection structure, duct plate unit, and duct. Background Technology

[0002] Cooling towers are core equipment in industrial cooling systems, primarily used for heat exchange in fields such as power and chemical engineering. They lower water temperature through the principle of evaporative cooling. The cooling tower duct is one of the main components of a cooling tower, typically located at the top of the tower, serving to protect the fan and guide airflow.

[0003] In large cooling tower structures, the diameter of the duct often exceeds eight meters, and the height is around four meters. Existing duct structures, such as the "molded duct" disclosed in patent CN209055001U, consist of several duct sections arranged in a circle, with the fan positioned below the duct opening. The duct sections are arranged adjacently and connected by bolts. Traditionally, the duct sections are made of fiberglass (fiber-reinforced composite plastic) and molded as a single piece using molding equipment. However, due to the large height of large ducts, the one-piece molding process requires sophisticated molding equipment, resulting in relatively high manufacturing costs. Utility Model Content

[0004] To be applicable to the production and manufacturing of large cooling tower ducts, the first objective of this application is to provide a split-type cooling tower duct plate connection structure.

[0005] The cooling tower duct plate connection structure provided in this application adopts the following technical solution:

[0006] A cooling tower duct plate connection structure, used for connecting a first plate and a second plate, includes:

[0007] The first fastening part is located at one end of the first plate;

[0008] The second fastening part is located at one end of the second plate; and

[0009] Several bolts are used to connect the first plate and the second plate.

[0010] The first fastening part and the second fastening part engage. The first fastening part has a plurality of first mounting holes, and the second fastening part has a plurality of second mounting holes that communicate with the first mounting holes. The first fastening part also has a countersunk groove that communicates with the first mounting holes. The bolt passes through the first mounting holes and the second mounting holes, and the bolt head is received in the countersunk groove.

[0011] Preferred options also include:

[0012] A plurality of first protrusions are provided extending outward from one end of the first engaging portion; and

[0013] Several second protrusions are provided extending outward from one end of the second engaging portion.

[0014] The second protrusion has a limiting groove, and the first protrusion is engaged in the limiting groove.

[0015] Preferably, the first mounting hole penetrates the first protrusion, and the second mounting hole penetrates the second protrusion.

[0016] Preferably, an adhesive filler layer is provided in the gap between the screw head and the countersunk groove.

[0017] Preferably, a number of first protrusions are spaced apart and staggered vertically.

[0018] To be applicable to the production and manufacturing of large ventilation ducts, the second objective of this application is to provide a split-type ventilation duct plate unit.

[0019] The wind tunnel panel unit provided in this application adopts the following technical solution:

[0020] A ventilation duct panel unit, comprising:

[0021] First plate;

[0022] The second plate; and

[0023] The cooling tower duct plate connection structure is used to connect the first plate and the second plate.

[0024] Preferred, including:

[0025] Diffusion segment;

[0026] contraction segment; and

[0027] The throat segment connects the diffusing segment and the constricting segment;

[0028] The diffusion section and the contraction section are provided with a first longitudinal rib on their end faces, and the throat section is provided with a transverse rib, an intersecting rib, and a second longitudinal rib on its end face.

[0029] Preferably, the first plate and the second plate are both integral structures.

[0030] To reduce production difficulty, a third objective of this application is to provide a duct with a split-structure duct plate unit.

[0031] A ventilation duct includes a plurality of interconnected ventilation duct plate units.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. By setting the air duct plate as a split type, the first plate and the second plate are connected to reduce the production difficulty. At the same time, the air duct plate unit is fixed by the connection of the first fastening part and the second fastening part with the connection limit bolt.

[0034] 2. The first plate and the second plate are accurately positioned by interlocking the limiting grooves opened on the first protrusion and the second protrusion on the first fastening part. At the same time, the first mounting hole and the second mounting hole are opened in the first protrusion and the second protrusion respectively, thereby expanding the connection area between the bolt and the air duct plate unit and improving the reliability of the connection between the first plate and the second plate.

[0035] 3. By using the countersunk groove on the first fastening part and setting one end face of the second protrusion to be flat, the bolt head can be accommodated in the countersunk groove after the bolt is inserted and fixed by using an adhesive filler layer, which can reduce the occurrence of bolt loosening. The nut connected to the bolt abuts against the flat surface of the second protrusion, which can further improve the connection strength between the first plate and the second plate. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the ventilation duct structure;

[0037] Figure 2 This is a structural schematic diagram of the air duct plate unit;

[0038] Figure 3 This is an exploded view of the ventilation duct panel connection structure from one perspective.

[0039] Figure 4 This is an exploded view of the ventilation duct panel connection structure from another perspective;

[0040] Figure 5 Sectional view of the ventilation duct panel connection structure

[0041] Explanation of reference numerals in the attached drawings: 1. Ventilation duct plate unit; 11. First plate; 111. First fastening part; 112. First protrusion; 113. First mounting hole; 114. Countersunk groove; 12. Second plate; 121. Second fastening part; 122. Second protrusion; 1221. Limiting groove; 1222. Plane; 123. Second mounting hole; 13. First longitudinal rib; 14. Contraction section; 15. Diffusion section; 16. Throat section; 17. Interlaced rib; 18. Second longitudinal rib; 19. Transverse rib; 2. Guide channel; 3. Bolt; 31. Screw head; 4. Nut; 5. Adhesive filler layer. Detailed Implementation

[0042] The present application will be further described in detail below with reference to the accompanying drawings.

[0043] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0045] Figure 1 The structure of a ventilation duct is shown, including several ventilation duct plate units 1. Two adjacent ventilation duct plate units 1 are connected to each other by fasteners to form a roughly closed cylinder. The ventilation duct has a guide channel 2 with openings at the top and bottom in the middle, and the fan is installed in the guide channel 2.

[0046] See Figure 2 The first plate 11 and the second plate 12 of the duct plate unit 1 are connected in a split manner. The height of the first plate 11 and the second plate 12 is approximately the same. In this embodiment, the first plate 11 and the second plate 12 are integrally formed by molding process.

[0047] The duct panel unit 1 includes a diffuser section 15, a throat section 16, and a constriction section 14 connected sequentially from bottom to top. The opening of the diffuser section 15 is larger than that of the constriction section 14, making the cross-section of the entire duct panel unit 1 approximately S-shaped. The diffuser section 15 and the constriction section 14 are provided with a first longitudinal rib 13 on the same end face. The first longitudinal rib 13 extends from one end toward the throat section 16. The throat section 16 is provided with a cross rib, a transverse rib 19, and a second longitudinal rib 18. The first longitudinal rib 13, the second longitudinal rib 18, and the cross rib are all connected to the transverse rib 19. All of the above ribs together improve the structural strength of the duct panel unit 1.

[0048] See also Figures 3 to 5The two ends of the first plate 11 and the second plate 12 are connected by a detachable connection structure. The specific connection structure includes a first fastening part 111 and a second fastening part 121. The first fastening part 111 is located at one end of the first plate 11, and the second fastening part 121 is located at one end of the second plate 12. The first fastening part 111 and the second fastening part 121 can engage with each other to restrict the first plate 11 and the second plate 12 from moving to one side along the height direction. The first fastening part 111 also has several first protrusions 112 on one end face, and the second fastening part 121 also has several second protrusions 122 on one end face. The number and position of the first protrusions 112 and the second protrusions 122 correspond, and the first protrusions 112 are spaced apart and staggered vertically along the height direction perpendicular to the first plate 11 to improve the reliability of the connection with the second protrusions 122. The second protrusion 122 has a limiting groove 1221 facing one end face of the first protrusion 112. The first protrusion 112 can be locked in the limiting groove 1221 to limit the movement of the first plate 11 and the second plate 12 perpendicular to the height direction.

[0049] The first fastening part 111 is provided with a first mounting hole 113, and the second fastening part 121 is provided with a second mounting hole 123. The first mounting hole 113 passes through the first protrusion 112, and the second mounting hole 123 passes through the second protrusion 122. At the same time, the first fastening part 111 is also provided with a countersunk groove 114 that connects to the first mounting hole 113. The opening of the countersunk groove 114 faces one side of the guide channel 2. The connection structure also includes several bolts 3 for connecting the first plate 11 and the second plate 12. One end of the bolt 3 passes through the first mounting hole 113 and the second mounting hole 123 from one side of the countersunk groove 114 and is threadedly connected to the nut 4. The bolt 3 has a screw head 31, which is received in the countersunk groove 114. An adhesive filler layer 5 is filled in the gap between the countersunk groove 114 and the screw head 31 to reduce the loosening of the bolt 3 and also to reduce the corrosion of the bolt 3. The end face of the second protrusion 122 away from the first protrusion 112 is set as a plane 1222. After the nut 4 and the bolt 3 are connected, they abut against the plane 1222 to increase the contact area. In this embodiment, due to the setting of the first protrusion 112 and the second protrusion 122, the connection depth of the bolt 3 is increased, which can further improve the reliability of the connection between the first plate 11 and the second plate 12, while reducing the possibility of the bolt 3 loosening.

[0050] During installation, the first fastening part 111 and the second fastening part 121 of the first plate 11 and the second plate 12 are aligned and engaged with each other. At the same time, several first protrusions 112 are engaged in the limiting grooves 1221 of the second protrusions 122 to achieve positioning. Finally, bolts 3 are inserted to connect nuts 4, and adhesive filler layer 5 is applied to the countersunk groove 114 to complete the installation of one duct plate unit 1.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cooling tower duct plate connection structure, applied to the connection between a first plate (11) and a second plate (12), characterized in that, include: The first fastening part (111) is provided at one end of the first plate (11); The second fastening part (121) is provided at one end of the second plate (12); and Several bolts (3) are used to connect the first plate (11) and the second plate (12). The first fastening part (111) engages with the second fastening part (121). The first fastening part (111) has a plurality of first mounting holes (113). The second fastening part (121) has a plurality of second mounting holes (123) that connect the first mounting holes (113). The first fastening part (111) also has a countersunk groove (114) that connects the first mounting holes (113). The bolt (3) passes through the first mounting holes (113) and the second mounting holes (123), and the bolt head (31) of the bolt (3) is received in the countersunk groove (114).

2. The cooling tower duct plate connection structure according to claim 1, characterized in that, Also includes: A plurality of first protrusions (112) are provided extending outward from one end of the first fastening part (111); as well as Several second protrusions (122) are provided extending outward from one end of the second fastening part (121). The second protrusion (122) has a limiting groove (1221), and the first protrusion (112) is engaged in the limiting groove (1221).

3. The cooling tower fan duct plate connection structure according to claim 2, characterized in that, The first mounting hole (113) passes through the first protrusion (112), and the second mounting hole (123) passes through the second protrusion (122).

4. The cooling tower fan duct plate connection structure according to claim 3, characterized in that, The end face of the second protrusion (122) away from the first fastening part (111) is a plane (1222).

5. The cooling tower fan duct plate connection structure according to claim 1, characterized in that, An adhesive filling layer (5) is provided in the gap between the screw head (31) and the countersunk groove (114).

6. The cooling tower fan duct plate connection structure according to claim 2, characterized in that, Several first protrusions (112) are spaced apart and staggered vertically.

7. A ventilation duct panel unit, characterized in that, include: First plate (11); Second plate (12); as well as The cooling tower duct plate connection structure as described in any one of claims 1-6 is used to connect the first plate (11) and the second plate (12).

8. The duct plate unit according to claim 7, characterized in that, include: Diffusion segment (15); Constriction segment (14); as well as The laryngeal segment (16) connects the diffuser segment (15) and the constrictor segment (14). The diffusion section (15) and the contraction section (14) are provided with a first longitudinal rib (13) on their end faces, and the throat section (16) is provided with a transverse rib (19), an intersecting rib (17) and a second longitudinal rib (18) on its end face.

9. The duct plate unit according to claim 7, characterized in that, The first plate (11) and the second plate (12) are both integral structures.

10. A ventilation duct, characterized in that, It includes several interconnected duct plate units (1) as described in claim 7.

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