Spray pipe structure of cooling tower

Abstract

The utility model relates to tobacco technical field discloses a kind of spray pipe structures of cooling tower, including spray pipe body and protection piece, one end of spray pipe body is set as open mouth, the other end of spray pipe body is set as closed, the surface of spray pipe body is spaced apart with several spray holes along its axial direction, the surface of spray pipe body is coated with anticorrosive layer, anticorrosive layer surface of spray pipe body is formed with protective layer by protection piece spiral winding, and the protection piece of adjacent each circle is mutually lapped when winding. The spray pipe structure of the cooling tower is coated with anticorrosive layer on the surface of spray pipe body, then the protective layer is formed on the surface of anticorrosive layer by protection piece in spiral winding mode, and it is guaranteed that there is no gap between each circle of protection piece when winding and there is lapped part, to form a complete physical barrier to the surface of spray pipe body, effectively solve the problem of corrosion perforation, greatly prolong the service life of spray pipe body.

Description

Technical Field

[0001] This utility model relates to the field of tobacco technology, and in particular to a spray pipe structure for a cooling tower. Background Technology

[0002] In tobacco production, some power-assisted equipment utilizes cooling towers for heat dissipation; these include refrigeration units, air compressors, and vacuum pumps. Refrigeration units are used to maintain air conditioning temperature and humidity or to cool specific stages of tobacco processing (such as tobacco drying or storage). Air compressors provide positive pressure air, and vacuum pumps provide negative pressure. Cooling towers dissipate the heat generated by the equipment into the atmosphere to maintain the equipment's normal operating temperature.

[0003] The spray pipes inside the cooling tower are particularly susceptible to severe electrochemical corrosion, pitting corrosion, and crevice corrosion due to their prolonged exposure to high temperature and humidity, and continuous contact with cooling water containing scale inhibitors and corrosion inhibitors. This leads to numerous perforations in the pipe walls, affecting spraying efficiency, significantly shortening the pipes' lifespan, and increasing maintenance and replacement costs. While methods such as adding corrosion inhibitors to the cooling water and galvanizing the pipe surface exist, their effectiveness is limited and they cannot completely prevent corrosive media from contacting the pipe walls.

[0004] Therefore, there is an urgent need to design a new spray pipe structure for cooling towers to improve the above problems. Utility Model Content

[0005] The purpose of this utility model is to propose a spray pipe structure for a cooling tower to solve the technical problem that the outer wall of the spray pipe is prone to electrochemical corrosion, pitting corrosion and crevice corrosion, which leads to a large number of perforations in the pipe wall, not only affecting the spraying effect, but also greatly shortening the service life of the spray pipe and increasing maintenance and replacement costs.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides a spray pipe structure for a cooling tower, including:

[0008] The spray pipe body has one open end and the other closed end. The surface of the spray pipe body has a plurality of spray holes spaced apart along its axial direction. The surface of the spray pipe body is coated with an anti-corrosion layer.

[0009] The protective component forms a protective layer on the surface of the anti-corrosion layer of the spray pipe body by spirally winding the protective component, and the protective component overlaps each other when winding. The surface of the protective layer is provided with small holes that correspond one-to-one with a plurality of spray holes.

[0010] By coating the surface of the spray pipe body with an anti-corrosion layer, and then using protective components to form a protective layer on the surface of the anti-corrosion layer in a spiral winding manner, and ensuring that there are no gaps between each turn of the protective components and that there are overlapping parts, a complete physical barrier is formed on the surface of the spray pipe body. This fundamentally isolates the direct contact between the cooling water, air and the corrosive ions therein and the aluminum alloy spray pipe body, effectively solving the problem of corrosion and perforation, and greatly extending the service life of the spray pipe body.

[0011] As a preferred embodiment of the spray pipe structure of a cooling tower, the overlap width of the protective components in adjacent loops accounts for 40%-60% of the width of the protective components.

[0012] By controlling the overlap width, the adhesion and integrity of the protective layer are ensured under long-term harsh operating conditions, avoiding the uncertainty of temporary on-site treatment.

[0013] As a preferred embodiment of the spray pipe structure of a cooling tower, the surface of the protective component is provided with marking lines, which are used for wrapping the protective component.

[0014] Operators can simply wrap the protective components around the marked lines one turn at a time, which can greatly improve the accuracy and efficiency of the wrapping process.

[0015] As a preferred embodiment of the spray pipe structure for a cooling tower, the protective component is provided as anti-corrosion tape.

[0016] It can be done by hand using anti-corrosion tape, without the need for complicated equipment processing. It is simple to operate, low in cost, and has a good anti-corrosion effect, resulting in high economic benefits.

[0017] As a preferred embodiment of the spray pipe structure of a cooling tower, the anti-corrosion tape includes a substrate layer and an adhesive layer. The substrate layer is made of polyethylene, and the adhesive layer is made of butyl rubber modified pressure-sensitive adhesive.

[0018] The polyethylene substrate layer has strong corrosion resistance and can resist the erosion of various chemicals, effectively protecting the spray pipe body from corrosion; the butyl rubber modified pressure-sensitive adhesive layer has strong adhesion and excellent waterproof effect under external pressure, which can effectively prevent water from seeping in and corroding through gaps.

[0019] As a preferred embodiment of the spray pipe structure of a cooling tower, the protective layer is provided with one or more layers.

[0020] Setting up a single protective layer is sufficient to protect the spray pipe body. The structure is simple and the winding efficiency is higher. Setting up multiple protective layers can further improve the protection efficiency, greatly reduce the probability of the spray pipe body being corroded, and extend its service life.

[0021] As a preferred embodiment of the spray pipe structure of the cooling tower, the thickness of the protective layer is 0.1mm-0.6mm.

[0022] The thickness of the protective layer is directly proportional to the thickness of the protective component and the number of protective layers.

[0023] As a preferred embodiment of the spray pipe structure of a cooling tower, the spray holes are configured as threaded holes, and spray heads are internally threaded into the threaded holes.

[0024] Installation or disassembly can be completed by rotating in either the forward or reverse direction, without the need for complicated tools, enabling quick installation and disassembly operations and facilitating later maintenance or replacement of parts.

[0025] As a preferred embodiment of the spray pipe structure for a cooling tower, the spray head is made of stainless steel.

[0026] Stainless steel forms a dense oxide film through chromium and nickel, which can effectively resist the corrosion of acidic, alkaline and chlorine-containing media. It has good resistance to chloride pitting corrosion and crevice corrosion, making it very suitable for the internal environment of cooling towers.

[0027] As a preferred embodiment of the spray pipe structure of the cooling tower, the open end of the spray pipe body is provided with a connecting end, the closed end of the spray pipe body is provided with a hanging end, the connecting end is connected to the cooling water inlet pipe through a flange, and the hanging end is fixed to the support structure of the cooling tower by bolts.

[0028] Cooling water enters the spray pipe body through the cooling water inlet pipe and is sprayed out through the spray head connected to the spray hole on the spray pipe body.

[0029] The beneficial effects of this utility model are:

[0030] The cooling tower spray pipe structure proposed in this utility model coats the surface of the spray pipe body with an anti-corrosion layer, and then uses protective components to form a protective layer on the surface of the anti-corrosion layer by spiral winding. It ensures that there are no gaps between each turn of the protective components during winding and that there are overlapping parts, thereby forming a complete physical barrier on the surface of the spray pipe body. This fundamentally isolates the direct contact between the cooling water, air and the corrosive ions therein and the aluminum alloy spray pipe body, effectively solving the problem of corrosion and perforation, and greatly extending the service life of the spray pipe body. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the spray pipe body provided in this embodiment of the utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the spray pipe body with a protective layer provided in this embodiment of the utility model;

[0033] Figure 3 This is a partial cross-sectional view of the spray pipe body with a protective layer provided in the embodiment of this utility model.

[0034] In the picture:

[0035] 1. Spray pipe body; 2. Spray hole; 3. Hanging end; 4. Connecting end; 5. Anti-corrosion layer; 6. Anti-corrosion tape; 7. Protective layer; 71. Adhesive layer. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] Combination Figures 1-3 As shown, this embodiment provides a spray pipe structure for a cooling tower, including a spray pipe body 1. The spray pipe body 1 is made of aluminum alloy and has a tubular structure. The outer surface of the spray pipe body 1 undergoes strict surface treatment before leaving the factory, such as sandblasting, degreasing, and drying.

[0041] Specifically, one end of the spray pipe body 1 is open, and the other end is closed. The open end of the spray pipe body 1 is provided with a connecting end 4, which is connected to the cooling water inlet pipe through a flange. The closed end of the spray pipe body 1 is provided with a suspension end 3, which is fixed to the support structure of the cooling tower by bolts.

[0042] Alternatively, the supporting structure may be a beam structure or frame installed inside the cooling tower.

[0043] like Figure 1 As shown, a number of spray holes 2 are spaced apart on the surface of the spray pipe body 1 along its axial direction.

[0044] Preferably, the spray hole 2 is a threaded hole, and a spray head is connected to the internal thread of the threaded hole. Installation or disassembly can be completed by rotating in the forward or reverse direction without complicated tools, which can realize quick installation and disassembly operations and facilitate later maintenance or replacement of parts.

[0045] Preferably, the spray head is made of stainless steel. Stainless steel forms a dense oxide film through the elements chromium and nickel, which can effectively resist the corrosion of acidic, alkaline and chlorine-containing media, and has good resistance to chloride pitting corrosion and crevice corrosion, making it very suitable for the internal environment of cooling towers.

[0046] During operation, cooling water enters the spray pipe body 1 from the cooling water inlet pipe and is sprayed out through the spray head connected to the spray hole 2 on the spray pipe body 1.

[0047] Furthermore, such as Figure 2 and Figure 3 As shown, the surface of the spray pipe body 1 is coated with an anti-corrosion layer 5. The anti-corrosion layer 5 is a primer applied to the surface of the spray pipe body 1. After the primer dries, a protective layer 7 is formed on the surface of the anti-corrosion layer 5 of the spray pipe body 1 by spirally winding protective components. During the winding, the protective components of adjacent turns overlap each other. Small holes corresponding to several spray holes 2 are opened on the surface of the protective layer 7. The opening of the small holes facilitates the subsequent installation of the spray head.

[0048] It is understandable that by coating the surface of the spray pipe body 1 with an anti-corrosion layer 5, and then using a protective component to form a protective layer 7 on the surface of the anti-corrosion layer 5 in a spiral winding manner, and ensuring that there are no gaps between each turn of the protective component and that there are overlapping parts, a complete physical barrier is formed on the surface of the spray pipe body 1, which fundamentally isolates the direct contact between the cooling water, air and the corrosive ions therein and the aluminum alloy spray pipe body 1, effectively solving the problem of corrosion and perforation, and greatly extending the service life of the spray pipe body 1.

[0049] The overlap width of adjacent protective rings is 40%-60% of the width of the protective ring. This overlap width ensures the bonding strength and integrity of the protective layer 7 under long-term harsh operating conditions, avoiding the uncertainty of temporary on-site treatment.

[0050] Preferably, the overlap width of adjacent protective rings is 55% of the width of the protective ring.

[0051] In some embodiments, the overlap width of adjacent protective rings can be 40%, 45%, 60% of the width of the protective ring, etc. This embodiment does not make specific limitations on this, as long as the protective ring can be sealed and wrapped.

[0052] Preferably, the protective component is an anti-corrosion tape 6. The anti-corrosion tape 6 can be manually wrapped, requiring no complex equipment processing, making it simple to operate, low in cost, and providing good anti-corrosion effect and high economic benefits. The anti-corrosion tape 6 includes a substrate layer and an adhesive layer 71. The substrate layer is made of polyethylene, and the adhesive layer 71 is made of butyl rubber modified pressure-sensitive adhesive. The polyethylene substrate layer has strong corrosion resistance and can resist the erosion of various chemicals, effectively protecting the spray pipe body 1 from corrosion. The butyl rubber modified pressure-sensitive adhesive layer 71 has strong adhesion and excellent waterproof effect under external pressure, effectively preventing moisture from seeping in and corroding through gaps. The substrate layer and the adhesive layer 71 constitute a robust composite protective structure.

[0053] To facilitate the wrapping of the protective components, marking lines are provided on their surface. Operators can simply wrap the components along the marking lines, one turn at a time, which greatly improves the accuracy and efficiency of the wrapping process.

[0054] Optionally, the protective layer 7 may have one or more layers. A single protective layer 7 is sufficient to protect the spray pipe body 1, resulting in a simple structure and higher winding efficiency. Multiple protective layers 7 further improve protection efficiency, significantly reducing the probability of corrosion of the spray pipe body 1 and extending its service life. In this embodiment, the protective layer 7 has one layer. In other embodiments, two, three, or even more layers may be provided; this embodiment does not impose a specific limitation, and the specific number of layers can be set according to requirements.

[0055] Furthermore, the thickness of the protective layer 7 is 0.1mm-0.6mm. The thickness of the protective layer 7 is directly proportional to the thickness of the protective component and the number of protective layers 7. In this embodiment, the thickness of the protective layer 7 is 0.2mm, which completely covers all the outer surfaces of the spray pipe body 1 except for the spray holes 2.

[0056] In summary, when the spray pipe body 1 is put into use, its aluminum alloy body is perfectly protected, thus achieving the purpose of long-term corrosion prevention.

[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. The spray pipe structure of a cooling tower, characterized in that, include: The spray pipe body (1) has one open end and the other closed end. The surface of the spray pipe body (1) is provided with a number of spray holes (2) at intervals along its axial direction. The surface of the spray pipe body (1) is coated with an anti-corrosion layer (5). The protective component forms a protective layer (7) on the surface of the anti-corrosion layer (5) of the spray pipe body (1) by spirally winding the protective component, and the protective components of adjacent turns overlap each other during winding. The surface of the protective layer (7) is provided with small holes corresponding to a number of spray holes (2).

2. The spray pipe structure of the cooling tower according to claim 1, characterized in that, The overlap width of the protective components in adjacent rings accounts for 40%-60% of the width of the protective components.

3. The spray pipe structure of the cooling tower according to claim 1, characterized in that, The surface of the protective component is provided with marking lines, which are used for wrapping the protective component.

4. The spray pipe structure of the cooling tower according to claim 1, characterized in that, The protective component is configured as anti-corrosion tape (6).

5. The spray pipe structure of the cooling tower according to claim 4, characterized in that, The anti-corrosion tape (6) includes a substrate layer and an adhesive layer (71). The substrate layer is made of polyethylene and the adhesive layer (71) is made of butyl rubber modified pressure-sensitive adhesive.

6. The spray pipe structure of the cooling tower according to claim 1, characterized in that, The protective layer (7) has one or more layers.

7. The spray pipe structure of the cooling tower according to claim 6, characterized in that, The thickness of the protective layer (7) is 0.1mm-0.6mm.

8. The spray pipe structure of the cooling tower according to any one of claims 1-7, characterized in that, The spray hole (2) is configured as a threaded hole, and a spray head is connected to the internal thread of the threaded hole.

9. The spray pipe structure of the cooling tower according to claim 8, characterized in that, The spray head is made of stainless steel.

10. The spray pipe structure of the cooling tower according to any one of claims 1-7, characterized in that, The spray pipe body (1) has a connecting end (4) at its open end and a hanging end (3) at its closed end. The connecting end (4) is connected to the cooling water inlet pipe through a flange, and the hanging end (3) is fixed to the support structure of the cooling tower by bolts.

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