cooling tower

Abstract

The present invention relates to the technical field of cooling towers and discloses a cooling tower comprising a main body, an air rib membrane, a connecting clamp and a first pressure plate. The main body is in a tower-shaped structure, the air rib membrane is located on the outside of the main body, a plurality of connecting clamps are fixed on the outer wall of the main body, and a plurality of first pressure plates are detachably connected to the connecting clamps. The first pressure plate is suitable for limiting the installation of the air rib membrane on the connecting clamp. The present invention installs the air rib membrane in the connecting clamp on the main body through the first pressure plate, so that the air rib membrane can be detachably installed on the main body as a maintenance structure. No welding or assembly is required during construction, and no tensioning is required after the construction is completed. The cooling tower has the advantages of a simple node structure, simplified installation steps, and convenient control of construction quality. At the same time, the amount of steel used in the maintenance structure is reduced, and the overall dead weight of the cooling tower is reduced, so the cooling tower can be applied to large-sized cooling towers.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling towers, in particular to a cooling tower. Background Art

[0002] Cooling towers are a key component of thermal power plants, with natural draft indirect cooling towers being widely used in areas with water scarcity. Natural draft cooling towers utilize convection currents generated by air density differences between the inside and outside of the tower, or by natural wind. Traditional water-cooling towers use cold water to cool the units, consuming significant amounts of water. Traditional air-cooling towers use fans to cool the units, consuming significant amounts of electricity. Natural draft indirect cooling towers circulate water and air within the tower to cool the units, and also feature desulfurization, denitrification, and smoke exhaust, conserving water resources while also being clean and efficient.

[0003] In the existing technology, in order to overcome the problems of heavy deadweight of concrete structure cooling towers, obvious earthquake effects, and long construction period due to the influence of winter construction, steel structure cooling towers with light deadweight and short construction period are usually used, and a steel structure enclosure structure is set on the outside of the cooling tower. This structure is mainly based on rigid metal enclosure and requires a large number of secondary structures such as purlins and connectors. During construction, there is a lot of high-altitude assembly and welding, the nodes are relatively complex, and the construction is relatively difficult. Summary of the Invention

[0004] In view of this, the present invention provides a cooling tower to solve the problems in the prior art of cooling towers using steel structure enclosures, which require a lot of high-altitude assembly and welding during construction, have complex nodes, and are difficult to construct.

[0005] The present invention provides a cooling tower, including a main body, an air rib membrane, a connecting clamp and a first pressure plate. The main body is a tower-shaped structure, the air rib membrane is located on the outside of the main body, a plurality of connecting clamps are fixed on the outer wall of the main body, and a plurality of first pressure plates are detachably connected to the connecting clamps. The first pressure plate is suitable for limiting the installation of the air rib membrane on the connecting clamp.

[0006] Beneficial effects: The present invention installs the air rib membrane in the connecting fixture on the main body through the first pressure plate, so that the air rib membrane can be detachably installed on the main body as a maintenance structure. No welding or assembly is required during construction, and no tensioning is required after the construction is completed. It has the advantages of simple node structure, simplified installation steps, and easy control of construction quality. At the same time, it reduces the amount of steel used in the maintenance structure, reduces the overall weight of the cooling tower, and can be applied to large-sized cooling towers.

[0007] In an optional embodiment, a mounting groove is provided on the connecting fixture or the first pressing plate, and a protrusion is provided on the first pressing plate or the connecting fixture, and the protrusion is detachably mounted in the mounting groove.

[0008] Beneficial effects: During installation, the present invention uses a protrusion to squeeze the air rib membrane into the installation groove to complete the installation. At the same time, during later maintenance, the protrusion can be removed from the installation groove to complete the replacement of the air rib membrane. It has the advantages of simple node structure and easy construction.

[0009] In an optional embodiment, the connecting fixture is provided with at least two mounting portions, and the mounting grooves or protrusions are provided on the mounting portions.

[0010] Beneficial effect: The present invention provides multiple mounting portions on the connecting fixture, which can make the air rib membrane more firmly installed and improve the air rib membrane's ability to withstand wind loads.

[0011] In an optional embodiment, the cooling tower further includes a second pressing plate, the second pressing plate is located between adjacent mounting portions, the second pressing plate is fixedly connected to the connecting fixture, and the second pressing plate is suitable for fixedly mounting the air rib membrane on the connecting fixture.

[0012] Beneficial effect: The second pressing plate provided in the present invention facilitates the firm fixing of the edge portion of the air rib membrane in the adjacent installation portion, thereby improving the installation stability of the air rib membrane.

[0013] In an optional embodiment, the cooling tower further includes an edge sealing member, which connects adjacent first pressure plates.

[0014] Beneficial effects: The present invention arranges edge sealing members between adjacent first pressure plates, which can provide waterproof sealing for the second pressure plate, thereby preventing the second pressure plate from being rusted by rain and snow, and at the same time beautifying the appearance of the gas plenum.

[0015] In an optional embodiment, the main body includes annular trusses and radial trusses, a plurality of annular trusses are arranged in parallel along a vertical direction, and a plurality of radial trusses are fixedly connected to the annular trusses along the circumference of the annular trusses.

[0016] Beneficial effects: The cooling tower body of the present invention adopts an annular truss and radial truss structure. Compared with the concrete cooling tower, it has the advantages of light weight, large overall rigidity, short construction period, no influence of winter temperature during construction, good overall structural stability, and little influence by earthquakes.

[0017] In an optional embodiment, the annular truss and / or the radial truss includes a plurality of truss units fixedly connected to each other, and the connecting clamps are fixedly installed on the truss units.

[0018] Beneficial effect: The present invention fixes the connecting clamp on the truss unit. During construction, the air rib membrane between each truss unit can be installed on the ground along with the main truss and then hoisted together with the main structure. The air rib membrane can also be installed after the main steel structure is assembled. The construction method is more flexible.

[0019] In an optional embodiment, the truss unit includes chords and webs, at least four chords are vertically arranged, a plurality of webs are fixedly connected to ends of adjacent chords, and the connecting clamps are fixedly installed on the chords and / or webs.

[0020] In an optional embodiment, a filling piece is provided in the chord.

[0021] Beneficial effect: The present invention can increase the rigidity of the overall structure of the cooling tower by arranging the filling piece in the chord.

[0022] In an optional embodiment, the cooling tower further includes a reinforcing plate, which is disposed between the connecting clamp and the main body.

[0023] Beneficial effects: The present invention can increase the strength of the connecting clamp by providing a reinforcing plate, improve the wind load strength of the connecting clamp, and make the installation of the air rib membrane more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific 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.

[0025] Figure 1 This is a front view of a cooling tower according to an embodiment of the present invention;

[0026] Figure 2 This is a front view of another cooling tower according to an embodiment of the present invention;

[0027] Figure 3 This is a structural schematic diagram of an air rib membrane installed in a cooling tower according to an embodiment of the present invention;

[0028] Figure 4 for Figure 3 A in the middle is an enlarged schematic diagram;

[0029] Figure 5 This is a schematic structural diagram of a connecting fixture in a cooling tower according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic structural diagram of a first pressing plate in a cooling tower according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic structural diagram of an air rib membrane installed in another cooling tower according to an embodiment of the present invention;

[0032] Figure 8 for Figure 7 The enlarged schematic diagram of point B in the middle;

[0033] Figure 9 This is a schematic structural diagram of a main body of a cooling tower according to an embodiment of the present invention;

[0034] Figure 10 This is a schematic diagram of the partial structure of a main body of a cooling tower according to an embodiment of the present invention;

[0035] Figure 11 This is a schematic structural diagram of a truss unit in a cooling tower according to an embodiment of the present invention;

[0036] Figure 12 is a cross-sectional view of a truss unit in a cooling tower according to an embodiment of the present invention;

[0037] Figure 13 This is a schematic diagram of the partial structure of the air rib membrane and the main body in a cooling tower according to an embodiment of the present invention;

[0038] Figure 14 This is a schematic diagram of the installation structure of the air rib membrane and the main body in a cooling tower according to an embodiment of the present invention;

[0039] Figure 15 This is another schematic diagram of the installation structure of the air rib membrane and the main body in a cooling tower according to an embodiment of the present invention;

[0040] Figure 16 The figure is a schematic structural diagram of a cooling tower according to an embodiment of the present invention.

[0041] Description of reference numerals:

[0042] 1. Main body; 101. Circumferential truss; 102. Radial truss; 103. Truss element; 1031. Chord; 1032. Web member; 1033. Filler; 1034. Diagonal web member;

[0043] 2. Pleurodendrium; 201. Membrane; 202. Gas medium;

[0044] 3. Connecting fixture; 301. Mounting slot; 302. Mounting portion;

[0045] 4. First pressing plate; 401. Bump;

[0046] 5. Second pressing plate;

[0047] 6. Edge banding;

[0048] 7. Reinforcement plate. DETAILED DESCRIPTION

[0049] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0050] The following combination Figures 1 to 16 , describing embodiments of the present invention.

[0051] According to an embodiment of the present invention, Figures 1 to 16 As shown, a cooling tower is provided, including a main body 1, an air rib membrane 2, a connecting clamp 3 and a first pressure plate 4. The main body 1 is a tower-shaped structure, the air rib membrane 2 is located on the outside of the main body 1, and multiple connecting clamps 3 are fixed on the outer wall of the main body 1. Multiple first pressure plates 4 are detachably connected to the connecting clamps 3, and the first pressure plate 4 is suitable for limiting the installation of the air rib membrane 2 on the connecting clamp 3.

[0052] Specifically, in this embodiment, there is no specific limitation on the main body 1. In order to conform to the actual situation, the main body 1 in this embodiment is made of steel structure. The steel structure main body 1 has the advantages of light weight, good rigidity and high seismic performance, and the steel structure main body 1 is easy to construct a cooling tower main body 1 with an extra-large diameter and height.

[0053] In this embodiment, Figure 1 and Figure 2 As shown, the main body 1 can adopt a hyperbolic or straight cone section structure, the interior of the main body 1 is a cavity, the top is an air outlet, the bottom is provided with an air inlet, and the bottom diameter of the main body 1 is larger than the top diameter of the main body 1.

[0054] In some other embodiments, the main body 1 may also be made of reinforced concrete structure.

[0055] In this embodiment, Figure 3 and Figure 4 As shown, the air rib membrane 2 utilizes an inflatable air rib membrane structure, with multiple connecting clamps 3 installed at different locations on the outer wall of the main body 1. A first pressure plate 4 positions the air rib membrane 2 on the connecting clamps 3. Compared to the rigid color-coated steel plate enclosure structure used in related technologies, not only is the weight significantly reduced, but the amount of enclosure purlins used is also reduced, thereby significantly reducing high-altitude welding operations. Using an inflatable air rib membrane 2 as the enclosure for the cooling tower not only reduces the weight of the enclosure material, but also significantly reduces the amount of secondary structures such as purlins used in the enclosure, reducing construction costs. Furthermore, the air rib membrane 2 as the enclosure provides a longer corrosion protection life than rigid metal enclosure panels.

[0056] The present invention installs the air rib membrane 2 in the connecting fixture 3 on the main body 1 through the first pressure plate 4, so that the air rib membrane 2 can be detachably installed on the main body 1 as a maintenance structure. No welding or assembly is required during construction, and no tensioning is required after the construction is completed. It has the advantages of simple node structure, simplified installation steps, and easy control of construction quality. At the same time, it reduces the amount of steel used in the maintenance structure, reduces the overall dead weight of the cooling tower, and can be applied to large-sized cooling towers.

[0057] In one embodiment, Figures 3 to 6 As shown, a mounting groove 301 is provided on the connecting fixture 3 or the first pressing plate 4 , and a protrusion 401 is provided on the first pressing plate 4 or the connecting fixture 3 . The protrusion 401 can be detachably installed in the mounting groove 301 .

[0058] Specifically, in this embodiment, a mounting groove 301 is provided on the connecting fixture 3 , and a protrusion 401 is provided on the first pressing plate 4 , and the protrusion 401 matches the mounting groove 301 .

[0059] In this embodiment, the mounting groove 301 is cylindrical, and an opening 303 is provided on the side wall of the connecting clamp 3. The protrusion 401 is cylindrical and matches the shape of the mounting groove 301. A connecting portion 402 is provided between the protrusion 401 and the first pressure plate 4. During installation, the protrusion 401 is squeezed into the air rib membrane 2, and the protrusion 401 and the air rib membrane 2 are slid into the mounting portion 302. The connecting portion 402 is snapped into the opening 303 to realize the installation of the air rib membrane 2 on the main body 1, reducing the amount of high-altitude welding during the installation of the air rib membrane 2, facilitating the high-altitude assembly of the cooling tower, and ensuring the installation quality.

[0060] In some other embodiments, the protrusion 401 may be provided on the connecting fixture 3 , and the mounting groove 301 may be provided on the first pressing plate 4 .

[0061] During installation, the present invention can complete the installation by squeezing the air rib membrane 2 into the installation groove 301 using the protrusion 401. At the same time, during later maintenance, the air rib membrane 2 can be replaced by removing the protrusion 401 from the installation groove 301. It has the advantages of simple installation node structure and easy construction.

[0062] In one embodiment, Figure 7 and Figure 8 As shown, the connecting fixture 3 is provided with at least two mounting portions 302 , and the mounting grooves 301 or the protrusions 401 are provided on the mounting portions 302 .

[0063] Specifically, in this embodiment, the connecting fixture 3 is provided with two mounting portions 302, and the mounting grooves 301 are provided on the mounting portions 302. In other embodiments, the number of the mounting portions 302 may also be set to three or more.

[0064] In the present invention, a plurality of mounting portions 302 are provided on the connecting fixture 3, so that the air plenum membrane 2 can be mounted more stably and the ability of the air plenum membrane 2 to withstand wind loads can be improved.

[0065] In one embodiment, Figure 7 and Figure 8 As shown, the cooling tower further includes a second pressing plate 5 , which is located between adjacent mounting portions 302 . The second pressing plate 5 is fixedly connected to the connecting fixture 3 , and is suitable for fixing the air rib membrane 2 on the connecting fixture 3 .

[0066] Specifically, in this embodiment, when the air rib membrane 2 is installed in the connecting fixture 3 by the first pressure plate 4, the air rib membrane 2 in the gap between the two mounting parts 302 will form a trim, and the trim of the air rib membrane 2 can be fixedly installed on the connecting fixture 3 by the second pressure plate 5. In this embodiment, the second pressure plate 5 is fixedly installed on the connecting fixture 3 by bolts.

[0067] The second pressing plate 5 of the present invention is provided to firmly fix the edge portion of the air rib membrane 2 in the adjacent installation portion 302, thereby improving the installation stability of the air rib membrane 2.

[0068] In one embodiment, Figure 7 and Figure 8 As shown, the cooling tower further includes an edge sealing member 6 , which connects adjacent first pressure plates 4 .

[0069] Specifically, in this embodiment, edge sealing members 6 are installed on the two first pressing plates 4 on a connecting fixture 3. The edge sealing members 6 can be made of edge sealing membrane material or waterproof patch. The edge sealing members 6 can connect the two first pressing plates 4 into a whole.

[0070] The present invention provides edge sealing members 6 between adjacent first pressing plates 4 to provide waterproof sealing for the second pressing plates 5, thereby preventing the second pressing plates 5 from rusting due to rain and snow, and also beautifying the appearance of the air plenum 2.

[0071] In one embodiment, Figure 9 and Figure 10 As shown, the main body 1 includes annular trusses 101 and radial trusses 102 . A plurality of annular trusses 101 are arranged in parallel along a vertical direction, and a plurality of radial trusses 102 are fixedly connected to the annular trusses 101 along the circumference of the annular trusses 101 .

[0072] Specifically, in this embodiment, the annular truss 101 and the radial truss 102 are steel structure trusses, and the air rib membrane 2 is installed on the outer sides of the annular truss 101 and the radial truss 102 .

[0073] The cooling tower body 1 of the present invention adopts the structure of annular trusses 101 and radial trusses 102. Compared with concrete cooling towers, it has the advantages of light weight, high overall rigidity, short construction period, no influence of winter temperature during construction, good overall structural stability and little influence by earthquakes.

[0074] In one embodiment, Figure 10 As shown, the annular truss 101 and / or the radial truss 102 includes a plurality of truss units 103 fixedly connected to each other, and the connecting clamps 3 are fixedly mounted on the truss units 103 .

[0075] Specifically, in this embodiment, multiple truss units 103 are fixedly connected horizontally to form a ring truss 101, and multiple truss units 103 are fixedly connected vertically to form a radial truss 102. A single truss unit 103 can be shared at the intersection of the ring truss 101 and the radial truss 102. The connecting fixture 3 is fixedly mounted on the outside of the truss unit 103.

[0076] like Figure 3 、 Figures 13 to 16 As shown, the present invention fixes the connecting clamp 3 on the truss unit 103. During construction, the air rib membrane 2 between each truss unit 103 can be installed on the ground along with the truss unit 103 of the main body 1 and then hoisted together with the main body 1 structure. Alternatively, the air rib membrane 2 can be installed after the overall assembly of the main body 1 is completed, and the construction method is more flexible.

[0077] In one embodiment, Figure 11 and Figure 12 As shown, the truss unit 103 includes chords 1031 and webs 1032 , at least four chords 1031 are vertically arranged, multiple webs 1032 are fixedly connected to the ends of adjacent chords 1031 , and the connecting clamp 3 is fixedly installed on the chords 1031 and / or the webs 1032 .

[0078] Specifically, in this embodiment, the truss unit 103 has a cubic structure. The truss unit 103 includes four vertically arranged chords 1031 and eight horizontally arranged webs 1032. The two ends of the web 1032 are respectively connected to the ends of two adjacent chords 1031. The truss unit 103 also includes diagonal webs 1034 arranged on the diagonals of adjacent or relative chords 1031. The diagonal webs 1034 can support and stabilize the truss unit 103.

[0079] In one embodiment, Figure 12 As shown, a filling piece 1033 is provided in the chord rod 1031 .

[0080] Specifically, in this embodiment, the chord 1031 can be made of a steel pipe, and the chord 1031 is filled with concrete to increase the rigidity of the overall structure of the cooling tower.

[0081] In the present invention, the filling member 1033 is provided in the chord 1031 , thereby increasing the rigidity of the overall structure of the cooling tower.

[0082] In one embodiment, Figure 3 、 Figure 4 、 Figure 7 Figure 8 As shown, the cooling tower further includes a reinforcing plate 7 , which is disposed between the connecting fixture 3 and the main body 1 .

[0083] Specifically, in this embodiment, a reinforcing plate 7 of corresponding size may be provided between the connecting fixture 3 and the chord 1031 and / or the web 1032 according to actual wind load conditions.

[0084] The present invention can increase the strength of the connecting clamp 3 by providing the reinforcing plate 7, improve the wind load strength of the connecting clamp 3, and make the installation of the air rib membrane 2 more stable.

[0085] In one embodiment, Figure 3 As shown, the air plenum membrane 2 includes a membrane body 201 and a gas medium 202 . The first pressing plate 4 is suitable for limiting the position of the membrane body 201 and mounting it on the connecting fixture 3 . The gas medium 202 is filled in the membrane body 201 .

[0086] Specifically, in this embodiment, the pneumothorax membrane 2 adopts a hollow structure of two membrane layers 201 , and air can be filled between the two membrane layers 201 to form the membrane 201 into a sac-like structure.

[0087] In this embodiment, the material of the membrane body 201 is not specifically limited. The membrane body 201 can use glass fiber as the base fabric with a polyvinyl chloride coating on the base fabric, or can use Teflon membrane material, ethylene-tetrafluoroethylene copolymer (ETFE, Ethylene-Tetra-Fluoro-Ethylene) membrane material, etc.

[0088] The present invention adopts an inflatable air film structure, which not only reduces the weight of the maintenance structure, but also better conforms to the curved shape of the cooling tower.

[0089] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A cooling tower, characterized in that: include: A main body (1), wherein the main body (1) is a tower-shaped structure; A pneumopleural membrane (2), the pneumopleural membrane (2) being located outside the main body (1); Connecting clamps (3), a plurality of connecting clamps (3) are fixed on the outer wall of the main body (1); a first pressing plate (4), wherein a plurality of the first pressing plates (4) are detachably connected to the connecting fixture (3), and the first pressing plates (4) are suitable for limiting the installation of the air rib membrane (2) on the connecting fixture (3); The connecting fixture (3) or the first pressing plate (4) is provided with a mounting groove (301), and the first pressing plate (4) or the connecting fixture (3) is provided with a protrusion (401), and the protrusion (401) is detachably mounted in the mounting groove (301); The connecting fixture (3) is provided with at least two mounting portions (302), and the mounting grooves (301) or the protrusions (401) are provided on the mounting portions (302); Also includes: a second pressing plate (5), the second pressing plate (5) being located between adjacent mounting portions (302), the second pressing plate (5) being fixedly connected to the connecting fixture (3), and the second pressing plate (5) being suitable for fixing the air plenum (2) on the connecting fixture (3); The main body (1) includes: Annular trusses (101), wherein a plurality of the Annular trusses (101) are arranged in parallel along a vertical direction; Radial trusses (102), a plurality of the radial trusses (102) being fixedly connected to the annular trusses (101) along the circumference of the annular trusses (101); The annular truss (101) and / or the radial truss (102) comprises: A plurality of mutually fixedly connected truss units (103), wherein the connection clamp (3) is fixedly mounted on the truss units (103); The truss unit (103) comprises: Chord rods (1031), at least four of the chord rods (1031) are vertically arranged; A web member (1032), wherein a plurality of web members (1032) are fixedly connected to the ends of adjacent chord members (1031), and the connection clamp (3) is fixedly mounted on the chord member (1031) and / or the web member (1032).

2. The cooling tower according to claim 1, wherein Also includes: An edge sealing member (6), wherein the edge sealing member (6) connects adjacent first pressing plates (4).

3. The cooling tower according to claim 1, wherein A filling piece (1033) is provided in the chord rod (1031).

4. The cooling tower according to any one of claims 1 to 3, characterized in that Also includes: A reinforcing plate (7), the reinforcing plate (7) being arranged between the connecting fixture (3) and the main body (1).

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