Steel structure cooling tower composed of double-layer trilateral and quadrilateral units

Abstract

The utility model discloses a steel structure cooling tower consisting of double-layer trilateral and quadrilateral units. The cooling tower consists of an upper part and a lower part, the lower part is formed by connecting and combining double-layer trilateral units according to a certain rule, and each double-layer trilateral unit is a double-layer reticulated shell formed by connecting a trilateral outer side chord member and a trilateral inner side chord member through a series of web members; the upper part is formed by connecting and combining double-layer quadrilateral units according to a certain rule, and each double-layer quadrilateral unit is a double-layer reticulated shell formed by connecting a quadrilateral outer side chord member and a quadrilateral inner side chord member through a series of web members. According to the double-layer steel structure cooling tower, the internal force conduction path of the double-layer steel structure cooling tower under the action of lateral force is optimized, the space stress performance is good, the stability of the structure is guaranteed, and the overall steel consumption is further reduced. Through connection and assembly of modular unit assemblies, standardized design, industrial production and fabricated construction of the cooling tower structure are achieved.

Description

Technical Field

[0001] The utility model relates to the design field of large cooling tower structures, in particular to a steel structure cooling tower composed of double-layer triangular and quadrilateral units. Background Art

[0002] A cooling tower is a device used to cool water vapor into water at a lower temperature and discharge the system's waste heat into the atmosphere. There are two types of cooling towers: natural ventilation wet cooling towers and forced ventilation wet cooling towers. They are widely used in industrial fields such as refineries, chemical plants, and power plants.

[0003] Cooling towers generally have two types of load-bearing structures: reinforced concrete and steel. Traditional cooling towers typically utilize a reinforced concrete thin shell structure, which is heavy, has poor seismic performance, and requires a long construction period. In contrast, steel structures offer advantages such as light weight and faster installation, and have become increasingly popular in recent years.

[0004] There are two main types of steel structure cooling towers currently used in engineering projects: one is a hyperbolic cooling tower with a single-layer space lattice shell, which has a relatively simple node structure and a small amount of welding. However, due to its single-layer structure, the structure itself cannot form a construction platform during construction, and an overall lifting construction plan is often required, which is not only difficult but also risky. The other is to fit the shape of the cooling tower through a series of modular double-layer truss units to form an overall double-layer space lattice shell structure. It has better spatial stability and the cross-section of the rods can be controlled to be smaller. Compared with the single-layer lattice shell, it saves more steel. However, due to the large number of rods, the amount of welding in on-site construction is large and the nodes are relatively complex.

[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present application, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a steel structure cooling tower composed of double-layer triangular and quadrilateral units, which optimizes the internal force conduction path of the double-layer steel structure cooling tower under the action of lateral force, thereby ensuring the stability of the structure and further compressing the overall steel consumption.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A steel cooling tower constructed from double-layer triangular and quadrilateral units consists of two parts: the lower part is composed of double-layer triangular units connected in a certain pattern. The double-layer triangular units are double-layer lattice shells composed of triangular outer chords and triangular inner chords connected by a series of web members; the upper part is composed of double-layer quadrilateral units connected in a certain pattern. The double-layer quadrilateral units are double-layer lattice shells composed of quadrilateral outer chords and quadrilateral inner chords connected by a series of web members. By adjusting the module and tilt angle of the chords of the upper and lower units of the cooling tower, the tower facade can be designed to have a hyperbolic, straight-cylinder-conical, or hyperbolic-straight-cylinder appearance.

[0009] Furthermore, the lower double-layer triangular unit is a double-layer lattice shell composed of an outer chord, an inner chord, an outer side inner web, an inner side inner web and a side web.

[0010] Furthermore, the upper double-layer quadrilateral unit is a double-layer lattice shell composed of outer longitudinal chords, inner longitudinal chords, outer horizontal chords, inner horizontal chords, outer side inner webs, inner side inner webs and side webs.

[0011] Furthermore, the webs of the double-layer triangular unit and the quadrilateral unit serve as support rods to control the calculated length of the chord, and both ends of the webs are connected to the chord by welding balls, intersecting welding or hinged connection.

[0012] Furthermore, a plurality of reinforcing ring trusses are provided at different heights of the cooling tower.

[0013] Furthermore, the tower skin and purlins are fixed on the outer or inner lattice shell of the cooling tower.

[0014] Furthermore, the lower part of the cooling tower forms a widened platform reinforcement truss based on the widened platform.

[0015] By adopting the above technical solution, the utility model has the following beneficial effects:

[0016] (1) Compared with ordinary double-layer truss steel structure cooling towers, the utility model has many advantages such as good structural stress performance, high spatial stability, low node welding amount, and convenient construction. It is suitable for steel structure cooling towers of any height and diameter.

[0017] (2) The utility model divides the structure into two parts, upper and lower parts, according to the stress characteristics of the structure at different heights of the cooling tower, thereby optimizing the structural force transmission path of the cooling tower, thereby reducing the overall steel consumption and lowering the cost.

[0018] (3) The utility model adopts modular unit components connected and assembled according to a certain rule, which facilitates the standardized design, industrialized production and assembly construction of the cooling tower structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the utility model. 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 three-dimensional axonometric drawing of the steel structure cooling tower of the utility model;

[0021] Figure 2 This is an elevation view of the steel structure cooling tower of the utility model;

[0022] Figure 3 The three-dimensional axonometric drawing and elevation drawing of the main lattice shell of the steel structure cooling tower of the utility model;

[0023] Figure 4 It is a three-dimensional axonometric drawing of the double-layer triangular unit at the lower part of the steel structure cooling tower of the utility model;

[0024] Figure 5 It is a three-dimensional axonometric drawing of the double-layer quadrilateral unit on the upper part of the steel structure cooling tower of the utility model;

[0025] Figure 6 This is a three-dimensional example diagram of the reinforcement ring truss at the lower part of the steel structure cooling tower of the utility model;

[0026] Figure 7 This is a three-dimensional example diagram of the upper reinforcement ring truss of the steel structure cooling tower of the utility model;

[0027] Figure 8 This is a three-dimensional example diagram of the reinforcement ring truss of the widened platform of the steel structure cooling tower of the utility model.

[0028] In the accompanying drawings, 10 is the upper part, 20 is the lower part, 100 is the upper reinforcing ring truss, 101 is the lower reinforcing ring truss, 102 is the widening platform reinforcing ring truss, 1 is the outer chord of the double-layer triangular unit, 2 is the inner chord of the double-layer triangular unit, 3 is the inner web of the outer side of the double-layer triangular unit, 4 is the inner web of the inner side of the double-layer triangular unit, 5 is the side web of the double-layer triangular unit, 6 is the outer longitudinal chord of the double-layer quadrilateral unit, 7 is the inner longitudinal chord of the double-layer quadrilateral unit, 8 is the outer horizontal chord of the double-layer quadrilateral unit, 9 is the inner horizontal chord of the double-layer quadrilateral unit, 10 is the outer side inner web of the double-layer quadrilateral unit, 11 is the inner side inner web of the double-layer quadrilateral unit, and 12 is the side web of the double-layer quadrilateral unit. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0030] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0031] Combine Figure 1-8 As shown, this embodiment provides a steel structure cooling tower composed of double-layer triangular and quadrilateral units, and the cooling tower consists of an upper and lower part; the lower part 20 is composed of double-layer triangular units connected and combined according to a certain pattern, and the double-layer triangular unit is a double-layer lattice shell composed of a triangular outer chord and a triangular inner chord connected by a series of web members; the upper part 10 is composed of double-layer quadrilateral units connected and combined according to a certain pattern, and the double-layer quadrilateral unit is a double-layer lattice shell composed of a quadrilateral outer chord and a quadrilateral inner chord connected by a series of web members.

[0032] The lower double-layer triangular unit is a double-layer lattice shell composed of an outer chord 1, an inner chord 2, an outer side inner web 3, an inner side inner web 4 and a side web 5.

[0033] The upper double-layer quadrilateral unit is a double-layer lattice shell composed of an outer longitudinal chord 6, an inner longitudinal chord 7, an outer horizontal chord 8, an inner horizontal chord 9, an outer side inner web 10, an inner side inner web 11 and a side web 12.

[0034] In this embodiment, the webs of the double-layer triangular and quadrilateral elements serve as support members to control the calculated length of the chord. The ends of the webs are connected to the chord using welded balls, intersecting welds, or hinged connections. The arrangement of the webs can be adjusted to suit the specific project requirements and is not limited here.

[0035] Based on the overall stability analysis of the cooling tower, this example further incorporates several lower reinforcing ring trusses 101 along the lower height of the cooling tower and several upper reinforcing ring trusses 100 along the upper height of the cooling tower to enhance the overall stability of the tower. The specific configuration and number of upper and lower reinforcing ring trusses 100, 101 are not limited and can be determined based on actual needs.

[0036] In the present application, the tower skin and purlins are fixed on the outer or inner lattice shell of the cooling tower.

[0037] In this embodiment, a widening platform is combined with a widening platform to arrange a reinforcing ring truss 102 at the lower part of the tower body, thereby further improving the overall stability of the tower body.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel structure cooling tower composed of double-layer triangular and quadrilateral units, characterized in that: The cooling tower consists of two parts, an upper part and an lower part; the lower part is composed of double-layer triangular units connected and combined according to a certain pattern, and the double-layer triangular units are double-layer lattice shells composed of triangular outer chords and triangular inner chords connected by a series of web bars; the upper part is composed of double-layer quadrilateral units connected and combined according to a certain pattern, and the double-layer quadrilateral units are double-layer lattice shells composed of quadrilateral outer chords and quadrilateral inner chords connected by a series of web bars.

2. The steel structure cooling tower composed of double-layer triangular and quadrilateral units according to claim 1, characterized in that: The double-layer triangular unit at the lower part is a double-layer lattice shell composed of an outer chord, an inner chord, an outer side inner web, an inner side inner web and a side web.

3. The steel structure cooling tower composed of double-layer triangular and quadrilateral units according to claim 1, characterized in that: The upper double-layer quadrilateral unit is a double-layer lattice shell composed of an outer longitudinal chord, an inner longitudinal chord, an outer horizontal chord, an inner horizontal chord, an outer side inner web, an inner side inner web and a side web.

4. The steel structure cooling tower composed of double-layer triangular and quadrilateral units according to claim 1, characterized in that: The webs of the double-layer triangular unit and the quadrilateral unit serve as support rods to control the calculated length of the chord. Both ends of the webs are connected to the chord by welding balls, intersecting welding or hinged connection.

5. The steel structure cooling tower composed of double-layer triangular and quadrilateral units according to claim 1, characterized in that: A plurality of reinforcing ring trusses are arranged at different heights of the cooling tower.

6. The steel structure cooling tower composed of double-layer triangular and quadrilateral units according to claim 1, characterized in that: The tower body skin and purlins are fixed on the outer or inner lattice shell of the cooling tower.

7. The steel structure cooling tower composed of double-layer triangular and quadrilateral units according to claim 1, characterized in that: The lower part of the cooling tower forms a widened platform reinforcement truss based on the widened platform.

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