Indirect air cooling cooling tower circulating water pipe arrangement structure

Abstract

The utility model relates to the technical field of indirect air cooling tower structure arrangement optimization, and disclose a kind of indirect air cooling cooling tower circulating water pipe arrangement structure, including base, cooling water tank is opened in the base, multiple connecting frames are installed on the base, multiple cooling tower body are installed on the connecting frame, the inner wall of cooling tower body is fixed with annular hot water pipe, the end side of annular hot water pipe is equipped with through slot, hot water inlet pipe is communicated in the through slot, the end side of cooling water tank is communicated with cold water outlet pipe.The utility model is designed by annular cavity and array distribution's transfer pipe, branch pipe, let water flow evenly distribute to each waterway, avoid the energy waste caused by local water flow congestion or deficiency, and can improve cooling efficiency, meet the equipment continuous heat dissipation demand, and double cooling effect lets water temperature can quickly drop to the cooling range required by equipment, guarantee the stable operation of steam turbine and other equipment, avoid equipment shutdown due to insufficient heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower circulating water pipe technology, specifically to a circulating water pipe arrangement structure for an indirect air-cooled cooling tower. Background Technology

[0002] Indirect air-cooled cooling towers are key equipment used in industrial production to cool high-temperature media. Their core function is to remove the high-temperature heat generated by core equipment such as steam turbines through heat exchange between air and circulating water, and then cool the circulating water and send it back to the equipment, thus providing cooling protection for the stable operation of the equipment.

[0003] In the operation system of an indirect air-cooled cooling tower, the circulating water pipe plays an important role in transporting high-temperature hot water, realizing heat exchange, and returning low-temperature cold water. Therefore, its layout directly affects the flow efficiency of the circulating water, the cooling effect, and the convenience of equipment operation and maintenance.

[0004] Currently, the circulating water pipes of existing indirect air-cooled cooling towers in the industrial field mostly adopt a straight pipe parallel arrangement. High-temperature hot water is introduced from one side of the cooling tower through a single inlet pipe, and then distributed into the tower through several parallel straight pipes. Finally, the hot water is discharged through the drain outlet directly opened on the straight pipe or the simple spray head connected to the branch pipe, thus completing the overall arrangement of the circulating water pipes.

[0005] However, when hot water enters the main water pipe, the asymmetrical pipe layout with single-sided water inlet and parallel straight pipe distribution easily leads to uneven water flow distribution. Some areas of the pipe become congested due to concentrated water flow, while other areas are sparse due to insufficient water flow. This directly results in the hot water not being able to evenly cover the heat exchange area in the cooling tower, which greatly reduces the heat exchange capacity of the entire cooling system. It is difficult to quickly reduce the water temperature to the cooling range required for equipment operation, which in turn frequently causes the equipment to shut down due to untimely heat dissipation, seriously affecting the continuity of industrial production.

[0006] Therefore, we propose an indirect air-cooled cooling tower circulating water pipe arrangement structure to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this utility model is to provide an indirect air-cooled cooling tower circulating water pipe arrangement structure to solve the problem mentioned in the background art that the existing circulating water pipe arrangement causes hot water to not evenly cover the heat exchange area in the cooling tower, making it difficult to quickly reduce the water temperature to the cooling range required for equipment operation, and thus frequently causing the equipment to shut down due to untimely heat dissipation.

[0008] This utility model provides the following technical solution: an indirect air-cooled cooling tower circulating water pipe arrangement structure, including a base, a cooling water tank inside the base, multiple connecting brackets installed on the base, a cooling tower body installed on the multiple connecting brackets, a circular hot water pipe fixed on the inner wall of the cooling tower body, a through groove opened on the end side of the circular hot water pipe, a hot water inlet pipe connected in the through groove, and a cold water outlet pipe connected to the end side of the cooling water tank.

[0009] Preferably, the annular hot water pipe has a cavity inside, and multiple transfer pipes are installed in the middle of the annular hot water pipe. The multiple transfer pipes are all connected to the cavity. Multiple through holes are opened at the bottom of the multiple transfer pipes. Branch pipes are fixedly connected in the multiple through holes. Spray pipes are threaded on the outer ring of the branch pipes.

[0010] Preferably, the transfer pipe, branch pipe and nozzle are arranged in a linear array of multiple units.

[0011] Preferably, the outer ring of the branch pipe has a threaded groove, and the nozzle has an external thread, which is threadedly connected to the threaded groove.

[0012] Preferably, the bottom of the annular hot water pipe is connected to multiple spiral tubes, the interior of the multiple spiral tubes is hollow, and the multiple spiral tubes are connected to the cavity.

[0013] Preferably, the plurality of connecting frames are arranged in a circumferential array, and the plurality of connecting frames are arranged in a hollowed-out manner.

[0014] This utility model has the following beneficial effects:

[0015] 1. This arrangement improves cooling efficiency and meets the continuous heat dissipation requirements of the equipment. The high-temperature hot water discharged from the equipment enters the annular cavity of the circular hot water pipe through the hot water inlet pipe, and can be quickly and evenly distributed. Through the spray-type water path formed by the transfer pipe, branch pipe and spray pipe, the hot water is sprayed out in a spray shape, which greatly increases the contact area between the hot water and the cold air, and achieves initial efficient cooling. At the same time, the arrangement of the spiral tube extends the hot water flow path and heat exchange time, allowing the hot water to be further cooled down. The dual cooling effect allows the water temperature to drop to the cooling range required by the equipment quickly, ensuring the stable operation of equipment such as steam turbines and avoiding equipment shutdown due to insufficient heat dissipation.

[0016] 2. This arrangement structure, through the design of annular cavities and array-distributed transfer and branch pipes, allows water flow to be evenly distributed to each water path, avoiding energy waste caused by local water flow congestion or insufficient flow; the closed-loop water path arrangement allows cooling water to circulate between the pipes and cooling water tanks, requiring only a small amount of water replenishment, which greatly reduces water consumption, thereby reducing the company's water costs and meeting the development requirements of energy conservation, emission reduction, and green environmental protection in industrial production.

[0017] 3. This layout structure is easy to maintain, reducing operation and maintenance costs and downtime losses. The nozzle and branch pipes are connected by threads, which is easy to disassemble and replace. When the nozzle is blocked or worn, maintenance can be completed without disassembling the entire pipeline. The sealing design of each pipeline interface reduces the occurrence of leakage failures, reduces the frequency and difficulty of daily maintenance, shortens maintenance time, and reduces production losses caused by equipment downtime maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the cooling tower body of this utility model.

[0020] Figure 3 This is a schematic diagram of the installation structure of the circular hot water pipe, hot water inlet pipe, and spiral pipe of this utility model.

[0021] Figure 4 This is a schematic diagram of the installation structure of the annular hot water pipe and branch pipe of this utility model.

[0022] Figure 5 This is a schematic diagram of the branch pipe and nozzle installation structure of this utility model. Figure 1 .

[0023] Figure 6 This is a schematic diagram of the branch pipe and nozzle installation structure of this utility model. Figure 2 .

[0024] In the diagram: 1. Base; 2. Cooling water tank; 3. Connecting frame; 4. Cooling tower body; 5. Circular hot water pipe; 51. Through groove; 6. Hot water inlet pipe; 7. Cavity; 8. Transfer pipe; 9. Through hole; 10. Branch pipe; 11. Threaded groove; 12. Spray pipe; 13. External thread; 14. Spiral pipe; 15. Cold water outlet pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] This embodiment aims to address the problem that traditional circulating water pipe layouts often lead to uneven water flow distribution, resulting in localized energy waste and heat dissipation dead zones, ultimately causing poor cooling performance. Please refer to [link / reference needed]. Figure 1 - Figure 6 An indirect air-cooled cooling tower circulating water pipe arrangement structure includes a base 1, with a cooling water tank 2 inside the base 1 for storing cooling water. This is an important part of the circulating water cooling process, providing a cold source reserve for subsequent cooling operations. Multiple connecting frames 3 are installed on the base 1, arranged in a circumferential array and with open spaces between them. The connecting frames 3 not only support the cooling tower body 4, but also facilitate natural air circulation due to their open space design, thus assisting the cooling tower's cooling operation.

[0028] A cooling tower body 4 is installed on multiple connecting frames 3. A circular hot water pipe 5 is fixed on the inner wall of the cooling tower body 4. A through groove 51 is opened on the end side of the circular hot water pipe 5. A hot water inlet pipe 6 is connected in the through groove 51. The hot water inlet pipe 6 is connected to the circular hot water pipe 5 through the through groove 51, so that hot water from heat source equipment such as steam turbine is introduced into the circular hot water pipe 5. A cold water outlet pipe 15 is connected to the end side of the cooling water tank 2.

[0029] A cavity 7 is formed inside the annular hot water pipe 5. Multiple transfer pipes 8 are installed in the middle of the annular hot water pipe 5, and all transfer pipes 8 are connected to the cavity 7. Multiple through holes 9 are formed at the bottom of the multiple transfer pipes 8, and branch pipes 10 are fixedly connected to each of the multiple through holes 9. The branch pipes 10 further subdivide the water flow. A nozzle 12 is threadedly installed on the outer ring of the branch pipe 10. Multiple transfer pipes 8, branch pipes 10 and nozzles 12 are arranged in a linear array. A threaded groove 11 is formed on the outer ring of the branch pipe 10, and an external thread 13 is formed inside the nozzle 12. The external thread 13 is threadedly connected to the threaded groove 11. The threaded installation method facilitates installation and disassembly, and ensures the sealing of the connection. Hot water can be sprayed out at a specific angle and range through the nozzle 12, increasing the contact area between hot water and air and enhancing the heat dissipation effect.

[0030] The bottom of the annular hot water pipe 5 is connected to multiple spiral tubes 14, which are hollow inside and connected to the cavity 7. The special shape of the spiral tubes 14 increases the flow path and time of hot water inside the pipe, prolongs the heat exchange time between the hot water and the outside air, and helps to further reduce the temperature of the hot water.

[0031] In this embodiment: When installing the water pipe, first fix the base 1 in place to ensure its stability. Then, install the connecting bracket 3 and the cooling tower body 4 in sequence so that the cooling tower body 4 stands stably on the base 1. When installing the connecting bracket 3, ensure that the height of each connecting bracket 3 is consistent and the spacing of the circumferential array is uniform so that the cooling tower body 4 stands stably on the base 1. At the same time, ensure the verticality of the tower body to prevent uneven stress on the internal pipes due to tilting. Then, install the circular hot water pipe 5 and fix it firmly to the inner wall of the cooling tower body 4. Install the hot water inlet pipe 6 so that it is precisely connected to the through groove 51 of the circular hot water pipe 5 to ensure that hot water can flow smoothly into the circular hot water pipe 5.

[0032] When installing the transfer pipe 8, branch pipe 10 and nozzle 12, ensure that the transfer pipe 8 is tightly connected to the cavity 7 of the annular hot water pipe 5, the branch pipe 10 is sealed to the through hole 9 at the bottom of the transfer pipe 8, the nozzle 12 is tightly screwed into the branch pipe 10 by threads, and the installation of the spiral pipe 14 must ensure its connectivity and sealing with the bottom of the annular hot water pipe 5.

[0033] During operation, the high-temperature hot water discharged from the turbine enters the cavity 7 of the annular hot water pipe 5 at a stable pressure through the hot water inlet pipe 6. The annular design of the cavity 7 allows the hot water to be quickly and evenly distributed throughout the pipe, avoiding local water flow blockage. When the hot water flows in the cavity 7, since both the transfer pipe 8 and the spiral pipe 14 are connected to the cavity 7, two streams will naturally be formed. One stream enters the transfer pipe 8, and after being split by the transfer pipe 8, it enters the spray nozzle 12 through the branch pipe 10. The spray nozzle 12 sprays the hot water out in a mist, allowing it to fully contact the naturally flowing or forcibly introduced cold air in the cooling tower for heat exchange. The first portion of the hot water is cooled initially, while the second portion flows into the spiral tube 14, extending the flow path of the hot water within the tube compared to a straight tube. This prolongs the heat exchange time with the outside air. As the hot water meanders within the spiral tube 14, it exchanges heat with the outside air, further reducing the temperature. The cooled water then falls into the cooling water tank 2 and is transported to equipment such as the steam turbine through the cold water outlet pipe 15 for further cooling, completing the cyclic cooling process. This cycle repeats continuously, continuously cooling equipment such as the steam turbine while reducing water consumption through closed-loop circulation, thus achieving stable cooling and energy-saving operation of the equipment.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A circulating water pipe arrangement structure for an indirect air-cooled cooling tower, comprising a base (1), characterized in that: A cooling water tank (2) is provided inside the base (1). Multiple connecting brackets (3) are installed on the base (1). A cooling tower body (4) is installed on the multiple connecting brackets (3). A circular hot water pipe (5) is fixed on the inner wall of the cooling tower body (4). A through groove (51) is provided on the end side of the circular hot water pipe (5). A hot water inlet pipe (6) is connected in the through groove (51). A cold water outlet pipe (15) is connected on the end side of the cooling water tank (2).

2. The circulating water pipe arrangement structure of an indirect air-cooled cooling tower according to claim 1, characterized in that: The circular hot water pipe (5) has a cavity (7) inside. Multiple transfer pipes (8) are installed in the middle of the circular hot water pipe (5). The multiple transfer pipes (8) are all connected to the cavity (7). Multiple through holes (9) are opened at the bottom of the multiple transfer pipes (8). A branch pipe (10) is fixedly connected in the multiple through holes (9). A spray pipe (12) is threaded on the outer ring of the branch pipe (10).

3. The circulating water pipe arrangement structure of an indirect air-cooled cooling tower according to claim 2, characterized in that: The transfer pipe (8), branch pipe (10) and nozzle (12) are all arranged in a linear array of multiple units.

4. The circulating water pipe arrangement structure of an indirect air-cooled cooling tower according to claim 3, characterized in that: The branch pipe (10) has a threaded groove (11) on its outer ring, and the nozzle (12) has an external thread (13) inside, which is threadedly connected to the threaded groove (11).

5. The circulating water pipe arrangement structure of an indirect air-cooled cooling tower according to claim 1, characterized in that: The bottom of the circular hot water pipe (5) is connected to multiple spiral pipes (14), the interior of the multiple spiral pipes (14) is hollow, and the multiple spiral pipes (14) are connected to the cavity (7).

6. The circulating water pipe arrangement structure of an indirect air-cooled cooling tower according to claim 1, characterized in that: The multiple connecting frames (3) are arranged in a circular array, and the multiple connecting frames (3) are arranged in a hollow shape.

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