Novel cooling tower structure

Abstract

The utility model relates to the technical field of industrial buildings, in particular to a novel cooling tower structure which comprises a base, a tower body part and an external maintenance part, and the tower body part is of a hollow cylindrical grid structure and is arranged on the base; the external maintenance part is of a hyperboloid cable membrane structure and located on the periphery of the tower body part, the top end of the external maintenance part is connected with the top of the tower body part, and the bottom end of the external maintenance part is connected with the base. The overall framework of the cooling tower is divided into a plurality of integrated module parts, components of the cooling tower can be machined in a component factory and assembled on site, on-site cement pouring is not needed, the requirement for shortening the engineering construction period of a large cooling tower can be met, the overall structure is reasonable in stress, the construction period is 5-6 months, and the construction cost is reduced. The problems that an existing cooling tower structure system is large in construction difficulty, long in period and high in manufacturing cost are solved, and the construction period can be saved by 70% compared with an existing concrete cooling tower structure under the same condition; compared with an existing steel structure cooling tower, the manufacturing cost is saved by more than 15%, and the construction period can be shortened by 50%.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial buildings, in particular to a novel cooling tower structure. Background Art

[0002] Cooling towers are common equipment in industry and power production. Hyperbolic cooling towers are one of the most commonly used forms, usually using a concrete shell structure. Recently, there have also been engineering applications using steel structures.

[0003] Concrete shell cooling towers have good mechanical properties and do not require additional maintenance structures. Their cost is lower than that of steel cooling towers. However, since the construction of concrete shell structures requires the construction of hyperbolic templates, and concrete is usually poured on site and requires time to solidify and harden, the construction of concrete cooling towers usually requires a long construction period, generally 16-18 months. At present, most steel cooling towers are truss structures, using intersecting nodes or welded ball nodes. A lot of welding work is required at the construction site, and large-scale lifting equipment is required. The construction is complex and difficult, and the equipment cost is high. The maintenance structure generally uses corrugated steel plates or aluminum plates. Due to the hyperbolic shape of the cooling tower, it is difficult to arrange the purlins and panels. The construction of the main body and maintenance structure requires a large number of workers to perform high-altitude operations, which is difficult and risky. The construction period generally takes 10-12 months, and the project cost is high. Utility Model Content

[0004] The utility model provides a novel cooling tower structure, which is used to solve the defects of great construction difficulty, long construction period and high cost caused by the use of concrete shell structure or steel structure in the prior art cooling tower construction, and meets the demand for shortening the construction period of large cooling tower engineering, and has the characteristics of low steel consumption, easy construction and good economy.

[0005] The utility model provides a novel cooling tower structure, comprising:

[0006] Pedestal;

[0007] The tower body part is a hollow cylindrical grid structure and is arranged on the base;

[0008] The external maintenance part is a hyperbolic cable membrane structure, located at the outer periphery of the tower body, the top end of the external maintenance part is connected to the top of the tower body, and the bottom end of the external maintenance part is connected to the base.

[0009] According to a new cooling tower structure provided by the utility model, the tower body portion includes a straight cylindrical grid structure and a cantilevered grid structure, the straight cylindrical grid structure is fixed on the base, the cantilevered grid structure is cantilevered from the top periphery of the straight cylindrical grid structure, and the cantilevered grid structure is connected to the top of the external maintenance part.

[0010] According to a novel cooling tower structure provided by the utility model, the straight cylindrical grid structure and the cantilevered grid structure are both composed of rods connecting bolt ball nodes.

[0011] According to a new cooling tower structure provided by the utility model, the straight cylindrical grid structure includes a plurality of vertical rods and a plurality of diagonal rods arranged in parallel, a plurality of bolt ball nodes are arranged on the vertical rods, and the bolt ball nodes are connected between two adjacent vertical rods via the diagonal rods.

[0012] According to a new cooling tower structure provided by the utility model, the cantilevered grid structure includes a plurality of parallelly arranged transverse rods and a plurality of diagonal rods, the transverse rods are connected to the top of the straight cylindrical grid structure, a plurality of bolt ball nodes are arranged on the transverse rods, and the bolt ball nodes are connected between two adjacent transverse rods via the diagonal rods; a connecting head is arranged at the end of the cantilevered grid structure away from the straight cylindrical grid structure, and the cantilevered grid structure is connected to the top of the external maintenance part via the connecting head.

[0013] According to a novel cooling tower structure provided by the utility model, the external maintenance part includes a membrane material located at the outer periphery of the tower body part, the membrane material forms a single-leaf hyperbolic surface at the outer periphery of the tower body part, and a plurality of parallel arranged main force-bearing cables are arranged in the membrane material, one end of the main force-bearing cable is connected to the top of the tower body part, and the other end is connected to the base.

[0014] According to a novel cooling tower structure provided by the utility model, the main force-bearing cable and the base are connected by an adjustable tie, so that prestressing is applied to the external maintenance part by adjusting the tie force of the main force-bearing cable on the base.

[0015] According to a novel cooling tower structure provided by the utility model, the external maintenance part also includes a plurality of annular cables arranged in parallel, the annular cables are surrounded on the single-blade hyperbolic surface and are arranged perpendicular to the main force-bearing cables.

[0016] According to a novel cooling tower structure provided by the utility model, the main force-bearing cable and the annular cable have a strength of 30-70 KN / m 2 The prestress of the membrane material on the single leaf hyperboloid surface formed has 2 to 6 KN / m 2Warp prestressing and weft prestressing.

[0017] According to a novel cooling tower structure provided by the utility model, the base is a ground foundation or a steel structure platform.

[0018] The utility model provides a new cooling tower structure, which divides the overall structure of the cooling tower into multiple integrated module parts, and its components can be processed in the component factory and assembled on site without on-site cement pouring. It has a simple shape and is easy to install, which can meet the needs of shortening the construction period of large cooling towers, and has low steel consumption, is easy to construct, and has good economy. The overall structure is reasonably stressed, and its construction period is 5 to 6 months, which solves the problems of difficult construction, long period, and high cost of the existing cooling tower structure system. Under the same conditions, the construction period can be saved by up to 70% compared with the existing concrete cooling tower structure; compared with the existing steel structure cooling tower, the cost can be saved by more than 15%, and the construction period can be shortened by up to 50%. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the novel cooling tower structure provided by the utility model;

[0021] Figure 2 It is a schematic diagram of the top structure of the novel cooling tower structure provided by the utility model;

[0022] Figure 3 It is a schematic diagram of the bottom structure of the novel cooling tower structure provided by the utility model;

[0023] Figure 4 It is a deformation cloud diagram of the new cooling tower structure provided by the utility model under the action of deadweight and wind load;

[0024] Figure 5 It is a deformation cloud diagram of the novel cooling tower structure provided by the utility model under the effects of deadweight, wind load and temperature.

[0025] Reference numerals:

[0026] 1. Base; 2. Tower body; 21. Straight cylindrical grid structure; 22. Cantilevered grid structure; 3. External maintenance part; 31. Membrane material; 32. Main load-bearing cable; 33. Annular cable; 4. Connector. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood in specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] Combine the following Figure 1 to Figure 5 The specific construction principle of the novel cooling tower structure of the utility model is described.

[0033] An embodiment of the utility model provides a novel cooling tower structure. Figure 1 As shown, it includes a base 1, a tower body 2 and an external maintenance part 3, wherein the tower body 2 is a hollow cylindrical grid structure, which is arranged on the base 1; the external maintenance part 3 is a hyperbolic cable membrane structure, which is located at the outer periphery of the tower body 2, the top end of the external maintenance part 3 is connected to the top of the tower body 2, and the bottom end of the external maintenance part 3 is connected to the base 1.

[0034] The novel cooling tower structure of the present embodiment is composed of a base 1, a cylindrical grid structure (tower body part 2) and a hyperbolic cable membrane structure (external maintenance part 3). It is understandable that the overall structure of the cooling tower of the present embodiment is divided into a plurality of integrated module parts, and its components can be processed in a component factory and assembled on site without on-site cement pouring. The body is simple and easy to install, which can meet the needs of shortening the construction period of large-scale cooling towers, and the steel consumption is low, easy to construct and economical. The overall structure is reasonably stressed, and its construction period is 5 to 6 months, which solves the problems of difficult construction, long period and high cost of the existing cooling tower structure system. Under the same conditions, the construction period can be saved by 70% compared with the existing concrete cooling tower structure; the cost can be saved by more than 15% compared with the existing steel structure cooling tower, and the construction period can be shortened by 50%.

[0035] In some embodiments of a novel cooling tower structure provided by the present invention, see Figure 2 As shown, the tower body part 2 includes a straight cylindrical grid structure 21 and a cantilevered grid structure 22. The straight cylindrical grid structure 21 is fixed on the base 1, and the cantilevered grid structure 22 is cantilevered from the top periphery of the straight cylindrical grid structure 21. The cantilevered grid structure 22 is connected to the top of the external maintenance part 3.

[0036] It is understandable that in the novel cooling tower structure of this embodiment, the components of the tower body 2 can be processed in the component factory and assembled on site, avoiding a large amount of on-site high-altitude welding construction work. Since the main body of the tower body 2 is a straight cylindrical grid structure 21, it has a simple shape and does not require large-scale lifting equipment, and the construction speed is fast. The cantilevered grid structure 22 of the tower body 2 is used to connect the straight cylindrical grid structure 21 and the external maintenance part 3. The tower body 2 is a hollow cylindrical grid structure, and the external maintenance part 3 is a cable membrane structure. The cantilevered grid structure 22 at the top of the tower body is used to connect the tower body 2 and the external maintenance part 3, and the overall structure is reasonably stressed.

[0037] In some specific examples, the straight cylindrical grid structure 21 and the cantilever grid structure 22 are both composed of rods connected by bolt ball nodes. Figure 2 As shown, the straight cylindrical grid structure 21 includes a plurality of parallel vertical rods and a plurality of oblique rods, a plurality of bolt ball nodes are arranged on the vertical rods, and the bolt ball nodes are connected between two adjacent vertical rods through oblique rods. The cantilever grid structure 22 includes a plurality of parallel transverse rods and a plurality of oblique rods, the transverse rods are connected to the top of the straight cylindrical grid structure 21, a plurality of bolt ball nodes are arranged on the transverse rods, and the bolt ball nodes are connected between two adjacent transverse rods through oblique rods; the end of the cantilever grid structure 22 away from the straight cylindrical grid structure 21 is provided with a connector 4, and the cantilever grid structure 22 is connected to the top of the external maintenance part 3 through the connector 4.

[0038] It should be understood that in this example, both the straight cylindrical grid structure 21 and the cantilevered grid structure 22 adopt a grid structure formed by bolt ball nodes connected by rods. The main body of the straight cylindrical grid structure 21 of the grid structure is a plurality of parallel vertical rods, and a plurality of bolt ball nodes are arranged on the vertical rods from top to bottom. The bolt ball nodes of two adjacent vertical rods at different heights are connected by diagonal rods, and the plurality of parallel vertical rods are combined into a straight cylindrical grid. The vertical rods, diagonal rods, bolt ball nodes and other components can be assembled on site after being processed in the component factory. Since the tower body structure is a straight cylindrical shape, the body shape is simple, and the bolt ball grid structure is suitable for high-altitude bulking, no large lifting equipment is required, and the construction speed is fast. Similarly, the cantilevered grid structure 22 of the grid structure is also suitable for high-altitude bulking by combining the transverse rods and diagonal rods with bolt ball nodes to improve construction efficiency. The connector 4 at the outer end of the cantilevered grid structure 22 is used to connect the external maintenance part 3.

[0039] In some other embodiments of a novel cooling tower structure provided by the present invention, combined with Figure 2 and Figure 3As shown, the external maintenance part 3 includes a membrane material 31 located at the outer periphery of the tower body part 2, the membrane material 31 forms a single-leaf hyperboloid at the outer periphery of the tower body part 2, and a plurality of parallel main force cables 32 are arranged in the membrane material 31, one end of the main force cable 32 is connected to the top of the tower body part 2, and the other end is connected to the base 1. The main force cable 32 is connected to the base 1 by an adjustable tie, so that the external maintenance part 3 is prestressed by adjusting the tie force of the main force cable 32 on the base 1.

[0040] It can be understood that in the novel cooling tower structure of this embodiment, the upper end of the main force-bearing cable 32 (radial cable) is connected to the outer end of the cantilever grid structure 22 through the connector 4, and the lower end of the main force-bearing cable 32 (radial cable) is tied to the base 1 (ground foundation or bottom steel structure platform). The main force-bearing cable 32 has a force of 30 to 70 KN / m. 2 The prestress can be applied to the membrane material 31 of the external maintenance part 3 by tensioning the main force-bearing cable 32 on the base 1, completing the construction tensioning and avoiding high-altitude operations.

[0041] Furthermore, in some specific examples, the external maintenance part 3 also includes a plurality of parallelly arranged annular cables 33, the annular cables 33 are wrapped around the single-leaf hyperboloid surface and are arranged perpendicular to the main force-bearing cables 32, and the annular cables 33 also have a load of 30 to 70 KN / m. 2 The main force cable 32 and the annular cable 33 are vertically cross-connected, and prestress is applied to the membrane material 31 to form a hyperbolic cable membrane structure, which constitutes the external maintenance part 3. The membrane material 31 has a prestress of 2 to 6 KN / m on the single-leaf hyperbolic surface. 2 Warp prestressing and weft prestressing.

[0042] The novel cooling tower structure of the utility model is further described below in conjunction with specific examples.

[0043] In this example, the upper diameter of the cooling tower is 97 meters, the lower diameter of the cooling tower is 142 meters, and the net height is 160 meters. A new cooling tower structure composed of a base 1, a cylindrical grid structure (tower body part 2) and a hyperbolic cable membrane structure (external maintenance part 3) is taken as an example:

[0044] First, a straight cylindrical grid structure 21 with a diameter of 80 meters and a net height of 160 meters is completed, and a cantilevered grid structure 22 with a cantilever of 8.5 meters is formed on the top of the straight cylindrical grid structure 21.

[0045] Then, the external maintenance part 3 is set. The outer end of the cantilever grid structure 22 is connected to the ground foundation through the main force-bearing cable 32 (radial cable). The upper end of the main force-bearing cable 32 is connected to the outer end of the cantilever grid structure 22 through the connector 4. The lower end of the main force-bearing cable 32 is tied to the ground foundation (base 1). The main force-bearing cable 32 and the annular cable 33 are vertically cross-connected to form a hyperbolic cable membrane structure (external maintenance part 3). The annular and radial cables are prestressed to 50KN / m 2 , the prestress of the membrane material 31 in the warp and weft directions is 4KN / m 2 .

[0046] By modeling and analyzing the overall structure of the new cooling tower structure in this example, after applying the deadweight and wind load, the deformation cloud diagram of the overall structural model relative to the original model is obtained as shown in the figure below: Figure 4 As shown in Figure 1, the structural form and stress meet the design requirements. On this basis, considering the temperature effect, the deformation cloud diagram is as follows: Figure 5 As shown, it can also meet the structural design requirements.

[0047] Compared with the existing technology of cooling tower construction using concrete shell structure or steel structure, the new cooling tower structure of the utility model solves the problems of high difficulty, long period and high cost of the existing cooling tower structure system. Under the same conditions, the construction period can be saved by up to 70% compared with the existing concrete cooling tower structure; the cost can be saved by more than 15% compared with the existing steel structure cooling tower, and the construction period can be shortened by up to 50%.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A new cooling tower structure, characterized in that: include: Base (1); A tower body part (2), the tower body part (2) being a hollow cylindrical grid structure, and arranged on the base (1); An external maintenance part (3) is a hyperbolic cable membrane structure and is located on the outer periphery of the tower body part (2). The top end of the external maintenance part (3) is connected to the top of the tower body part (2), and the bottom end of the external maintenance part (3) is connected to the base (1).

2. The novel cooling tower structure according to claim 1 is characterized in that: The tower body part (2) comprises a straight cylindrical grid structure (21) and a cantilevered grid structure (22), wherein the straight cylindrical grid structure (21) is fixed on the base (1), and the cantilevered grid structure (22) is cantilevered from the top periphery of the straight cylindrical grid structure (21), and the cantilevered grid structure (22) is connected to the top of the external maintenance part (3).

3. The novel cooling tower structure according to claim 2 is characterized in that: The straight cylindrical grid structure (21) and the cantilevered grid structure (22) are both composed of rods connected to bolt ball nodes.

4. The novel cooling tower structure according to claim 3 is characterized in that: The straight cylindrical grid structure (21) comprises a plurality of vertical rods and a plurality of oblique rods arranged in parallel, a plurality of bolt ball nodes are arranged on the vertical rods, and the bolt ball nodes are connected between two adjacent vertical rods via the oblique rods.

5. The novel cooling tower structure according to claim 3 is characterized in that: The cantilevered grid structure (22) comprises a plurality of parallelly arranged transverse rods and a plurality of oblique rods, wherein the transverse rods are connected to the top end of the straight cylindrical grid structure (21), and a plurality of bolt ball nodes are arranged on the transverse rods, and the bolt ball nodes are connected between two adjacent transverse rods via the oblique rods; a connector (4) is arranged at the end of the cantilevered grid structure (22) away from the straight cylindrical grid structure (21), and the cantilevered grid structure (22) is connected to the top end of the external maintenance part (3) via the connector (4).

6. The novel cooling tower structure according to any one of claims 1 to 5, characterized in that: The external maintenance part (3) comprises a membrane material (31) located at the periphery of the tower body part (2), the membrane material (31) forming a single-leaf hyperboloid surface at the periphery of the tower body part (2), a plurality of parallel arranged main force-bearing cables (32) are arranged in the membrane material (31), one end of the main force-bearing cable (32) is connected to the top of the tower body part (2), and the other end is connected to the base (1).

7. The novel cooling tower structure according to claim 6 is characterized in that: The main force-bearing cable (32) is connected to the base (1) by an adjustable tie-in connection, so that prestress is applied to the external maintenance part (3) by adjusting the tie-in force of the main force-bearing cable (32) on the base (1).

8. The novel cooling tower structure according to claim 6 is characterized in that: The external maintenance part (3) further comprises a plurality of annular cables (33) arranged in parallel, wherein the annular cables (33) are wrapped around the single-leaf hyperboloid surface and are arranged perpendicularly to the main force-bearing cables (32).

9. The novel cooling tower structure according to claim 8 is characterized in that: The main force-bearing cable (32) and the annular cable (33) have a load capacity of 30 to 70 KN / m 2 The prestress of the membrane material (31) has 2 to 6 KN / m on the single-leaf hyperboloid surface formed 2 Warp prestressing and weft prestressing.

10. The novel cooling tower structure according to any one of claims 1 to 5, characterized in that: The base (1) is a ground foundation or a steel structure platform.

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