A new and improved square counterflow cooling tower
By adopting a modular heat exchange structure, protective structure, and uniform spray design, the problem of easy damage to the heat exchange components of the square counterflow cooling tower is solved, enabling rapid replacement and efficient heat exchange, thus improving the ease of use and efficiency of the cooling tower.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING OU SHI DE ELECTROMECHANICAL TECH DEV CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-04
AI Technical Summary
After long-term use, the heat exchange components of existing square counterflow cooling towers are prone to deformation or damage due to alternating hot and cold temperatures, and are not easy to replace quickly.
A novel and improved square counterflow cooling tower was designed, employing a modular heat exchange structure and a protective structure. The heat exchange structure consists of multiple independent heat exchange plates and connecting frames, which are connected by interference fit between limiting shafts and limiting holes to enable rapid replacement of the heat exchange plates. The protective structure uses limiting pins to fix the protective plates, preventing foreign objects from entering and ensuring smooth airflow. The spray structure is designed with equal spacing to ensure uniform hot water spraying.
It enables rapid replacement of heat exchange plates, reduces maintenance difficulty and cost, improves heat exchange efficiency and structural stability, prevents blockage, enhances the convenience and applicability of the device, and improves cooling efficiency.
Smart Images
Figure CN224593771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cooling tower technology, and in particular to a novel and improved square counterflow cooling tower. Background Technology
[0002] Cooling towers are key heat exchange equipment in industrial circulating water systems and central air conditioning systems. Among the many types of cooling towers, the square counter-flow cooling tower has become one of the most widely used types on the market due to its compact structure, high thermal performance, and flexible layout. The square counter-flow cooling tower achieves heat and mass exchange by spraying hot water down from the top of the tower and allowing air to enter from the bottom, passing through the hot water and packing layer in the opposite direction. This results in the highest heat exchange efficiency, thus necessitating the design of a new and improved square counter-flow cooling tower.
[0003] To address this, patent CN213179522U discloses a novel composite flow closed-loop cooling tower. The novel composite flow closed-loop cooling tower includes: an axial flow heat exchange fan disposed at the center of the top of the cooling tower body; a spray system disposed on the cooling tower body, the spray system including a water pump, two air inlets, the two air inlets respectively connected to both sides of the top of the cooling tower body, a connecting pipe penetrating one side of the inner wall of each air inlet, and a nozzle connected to the bottom of the connecting pipe surface and inside the air inlet; the input and output ends of the water pump are respectively connected to an input pipe and an output pipe. The novel composite flow closed-loop cooling tower provided by this utility model has a reasonable layout of air inlets on both sides of the top of the cooling tower body, air inlets on the two sides of the water-spraying packing device, and the fan, increasing the heat exchange area between the cold air and the cooler and water-spraying packing inside the cooling tower, thus improving the heat exchange efficiency of the cooling tower.
[0004] Although the novel composite flow closed cooling tower mentioned above can increase the heat exchange area between cold air and the cooler and water spray packing inside the cooling tower during use, thus improving the heat exchange efficiency of the cooling tower, the heat exchange components are prone to deformation and damage after long-term use due to prolonged hot and cold alternation, making them inconvenient to replace quickly. Therefore, it is necessary to design a new and improved square counterflow cooling tower. Utility Model Content
[0005] The purpose of this invention is to provide a new and improved square counterflow cooling tower to solve the problem that the heat exchange components of existing square counterflow cooling towers are prone to deformation and damage after long-term use due to prolonged hot and cold alternation, and are inconvenient to replace quickly.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a novel improved square counterflow cooling tower, including a cooling tower body;
[0007] The outer wall at the bottom of the cooling tower body is fixed with a protective structure.
[0008] A heat exchange structure is provided on the inner side of the top of the cooling tower body. The heat exchange structure includes a connecting frame evenly arranged on the inner side of the top of the cooling tower body. A heat exchange plate is evenly arranged between adjacent connecting frames. Limiting holes are evenly opened on the side of the connecting frame close to the heat exchange plate. Limiting shafts are evenly fixed at both ends of the heat exchange plate. An installation plate is evenly fixed on the side of the connecting frame away from the heat exchange plate.
[0009] The top of the cooling tower body is equipped with a spray structure, and a fan is fixed to the top of the cooling tower body.
[0010] Furthermore, the cooling tower body includes a tower body, a drain pipe, side grooves, a top groove, and a cooling chamber. The cooling chamber is provided inside the tower body, and side grooves are provided at the bottom of the tower body outside the cooling chamber. A drain pipe is fixed at the bottom of the tower body, and a top groove is provided inside the tower body at the top of the cooling chamber.
[0011] Furthermore, the protective structure includes a protective plate, filter holes, limiting pins, and limiting seats. The limiting seats are uniformly fixed on the outer wall of the outer side of the tower body of the side groove. The inner side of each limiting seat is slidably connected to a protective plate. The interior of the protective plate is uniformly provided with filter holes. The top of each limiting seat is threadedly connected to a limiting pin.
[0012] Furthermore, the protective plates are symmetrically distributed on both sides of the tower body, and one end of each limiting pin passes through the limiting seat and extends into the interior of the protective plate. The limiting seats are symmetrically distributed on both sides of the protective plate.
[0013] Furthermore, the heat exchange plates are evenly distributed on the inner side of the cooling chamber, the limiting holes are evenly distributed on the inner side of the connecting frame, and the limiting shaft and the connecting frame are connected by interference fit through the limiting holes.
[0014] Furthermore, the spray structure includes an inlet pipe, a main pipe, a delivery pipe, a branch pipe, and high-pressure nozzles. The delivery pipes are uniformly fixed on the inner wall of the tower body at the top of the cooling chamber. One end of each delivery pipe extends to the outside of the tower body and is fixed with a main pipe. An inlet pipe is fixed on the side of the main pipe away from the delivery pipe. Branch pipes are uniformly fixed at the bottom of the delivery pipes. High-pressure nozzles are fixed at the bottom of each branch pipe.
[0015] Furthermore, the end of the water inlet pipe furthest from the main pipe is connected to a hot water tank and a water pump, and the delivery pipes are evenly distributed at the top of the cooling chamber.
[0016] Furthermore, the diversion pipes are evenly distributed at the bottom end of the delivery pipe.
[0017] The present invention provides a novel and improved square counterflow cooling tower, the advantages of which are:
[0018] By incorporating a heat exchange structure composed of multiple independent heat exchange plates and a connecting frame, and connecting them with interference fit between the limiting shaft and the limiting hole, modular installation of the heat exchange plates is achieved. When a heat exchange plate deforms or is damaged due to long-term alternating hot and cold operation, it can be quickly replaced individually without replacing the entire heat exchange module, significantly reducing maintenance difficulty and cost. The heat exchange plates are evenly distributed in the cooling chamber, increasing the heat and mass exchange area between hot water and air. At the same time, the counter-flow design allows for full contact between cold air and hot water, maximizing heat exchange efficiency. The mounting plate fixed on one side of the connecting frame facilitates the stable installation of the entire heat exchange unit inside the tower body, ensuring structural reliability. This device enables easy replacement of heat exchange plates, improving the convenience and efficiency of the improved square counter-flow cooling tower during use.
[0019] With its protective structure, the evenly spaced filter holes on the protective plate effectively block large debris, willow catkins, leaves, and other foreign objects from entering the tower, preventing blockage of core components such as the packing layer and spray system, ensuring smooth airflow and heat exchange efficiency. The protective plate is connected to the limiting seat by sliding and fixed by the limiting pin, which facilitates quick installation and disassembly of the protective plate, greatly simplifying the daily cleaning and filter replacement maintenance process, reducing maintenance costs and time. The symmetrically distributed protective plates and limiting seats enhance the stability and wind pressure resistance of the overall structure, extend its service life, and enable the device to easily protect the bottom side trough from dust, thus improving the applicability of this improved square counterflow cooling tower in use.
[0020] By incorporating a spray structure, the delivery pipes are evenly distributed at the top of the cooling chamber, and the distribution pipes and high-pressure nozzles are evenly connected at the bottom, ensuring that hot water is sprayed uniformly onto the entire heat exchange structure below. This avoids heat exchange dead zones caused by uneven water flow distribution, thereby maximizing the utilization of the heat exchange area and improving overall cooling efficiency. The design of the high-pressure nozzles and the evenly spaced layout help reduce the risk of blockage and ensure the long-term stable operation of the spray system. This enables the device to provide convenient, stable, and uniform hot water spraying, improving the convenience and efficiency of this improved square counter-flow cooling tower during use. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0022] Figure 2 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;
[0023] Figure 3 This is a side sectional view of the present invention.
[0024] Figure 4 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;
[0025] Figure 5 This is a top-view cross-sectional three-dimensional structural diagram of the present invention.
[0026] The following are the annotations in the diagram: 1. Cooling tower body; 11. Tower body; 12. Drainage pipe; 13. Side groove; 14. Top groove; 15. Cooling chamber; 2. Protective structure; 21. Protective plate; 22. Filter hole; 23. Limiting pin; 24. Limiting seat; 3. Heat exchange structure; 31. Heat exchange plate; 32. Connecting frame; 33. Limiting hole; 34. Limiting shaft; 35. Mounting plate; 4. Spray structure; 41. Water inlet pipe; 42. Main pipe; 43. Conveying pipe; 44. Diversion pipe; 45. High-pressure nozzle; 5. Fan. Detailed Implementation
[0027] 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.
[0028] Please see Figures 1-5 The present invention provides a novel and improved square counterflow cooling tower, comprising a cooling tower body 1.
[0029] Reference Figures 1-5 The cooling tower body 1 includes a tower body 11, a drain pipe 12, side grooves 13, a top groove 14, and a cooling chamber 15. The cooling chamber 15 is located inside the tower body 11. Side grooves 13 are located at the bottom of the tower body 11 outside the cooling chamber 15. A drain pipe 12 is fixed to the bottom of the tower body 11. A top groove 14 is located inside the tower body 11 at the top of the cooling chamber 15. Protective structures 2 are fixed to the outer wall of the bottom of the cooling tower body 1. The protective structures 2 include a protective plate 21, filter holes 22, and limiting pins 2. 3 and limiting seats 24, the limiting seats 24 are evenly fixed on the outer wall of the tower body 11 outside the side groove 13, the inner side of the limiting seats 24 is slidably connected with protective plates 21, the interior of the protective plates 21 is evenly provided with filter holes 22, the top of the limiting seats 24 is threadedly connected with limiting pins 23, the protective plates 21 are symmetrically distributed on both sides of the tower body 11, one end of the limiting pins 23 passes through the limiting seats 24 and extends into the interior of the protective plates 21, the limiting seats 24 are symmetrically distributed on both sides of the protective plates 21.
[0030] Air enters through the side groove 13 at the bottom of the tower body 11. Before entering, the air passes through the protective structure 2. The filter holes 22 on the protective plate 21 will perform preliminary filtration of the air, and impurities will be blocked. When cleaning is required, unscrew the limit pin 23 to slide the protective plate 21 out of the limit seat 24 for cleaning or replacement. After completion, reinsert and lock the limit pin 23.
[0031] Reference Figures 2-4 A heat exchange structure 3 is provided on the inner side of the top of the cooling tower body 1. The heat exchange structure 3 includes a connecting frame 32 evenly arranged on the inner side of the top of the cooling tower body 1. A heat exchange plate 31 is evenly arranged between adjacent connecting frames 32. Limiting holes 33 are evenly opened on the side of the connecting frame 32 close to the heat exchange plate 31. Limiting shafts 34 are evenly fixed at both ends of the heat exchange plate 31. An mounting plate 35 is evenly fixed on the side of the connecting frame 32 away from the heat exchange plate 31. The heat exchange plates 31 are evenly distributed on the inner side of the cooling chamber 15. The limiting holes 33 are evenly distributed inside the connecting frame 32. The limiting shafts 34 and the connecting frame 32 are connected by interference fit through the limiting holes 33.
[0032] When hot water is sprayed downwards inside the tower, it flows over the surface of the heat exchange plate 31. At the same time, cold air entering from the bottom flows in the opposite direction through the gaps between the heat exchange plates 31. During the flow, the water film and the air come into full contact, carrying out heat and mass exchange. During heat exchange, some of the water will evaporate and absorb heat, thereby lowering the water temperature.
[0033] Reference Figures 1-5 The top of the cooling tower body 1 is equipped with a spray structure 4, which includes an inlet pipe 41, a main pipe 42, a delivery pipe 43, a branch pipe 44, and a high-pressure nozzle 45. The delivery pipe 43 is evenly fixed on the inner wall of the tower body 11 at the top of the cooling chamber 15. One end of the delivery pipe 43 extends to the outside of the tower body 11 and is fixed with the main pipe 42. The side of the main pipe 42 away from the delivery pipe 43 is fixed with the inlet pipe 41. The bottom end of the delivery pipe 43 is evenly fixed with the branch pipe 44. The bottom end of the branch pipe 44 is fixed with the high-pressure nozzle 45. The end of the inlet pipe 41 away from the main pipe 42 is connected to a hot water tank and a water pump. The delivery pipe 43 is evenly distributed at the top of the cooling chamber 15, and the branch pipe 44 is evenly distributed at the bottom of the delivery pipe 43. A fan 5 is fixed at the top of the cooling tower body 1.
[0034] When an external power source is connected, the water pump at one end of the inlet pipe 41 is started. The water pump will drive the hot water in the hot water tank to be sent to the main pipe 42 through the inlet pipe 41. The hot water is then evenly distributed to the delivery pipe 43 through the main pipe 42. Finally, the hot water is sprayed down in a mist form through the evenly distributed branch pipe 44 and the high-pressure nozzle 45, evenly covering the surface of the heat exchange structure 3 below, providing conditions for an efficient heat and mass exchange process.
[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A novel and improved square counterflow cooling tower, comprising a cooling tower body (1); Its features are: The outer wall at the bottom of the cooling tower body (1) is fixed with a protective structure (2); A heat exchange structure (3) is provided on the inner side of the top of the cooling tower body (1). The heat exchange structure (3) includes a connecting frame (32) evenly arranged on the inner side of the top of the cooling tower body (1). A heat exchange plate (31) is evenly arranged between adjacent connecting frames (32). Limiting holes (33) are evenly opened on the side of the connecting frame (32) close to the heat exchange plate (31). Limiting shafts (34) are evenly fixed at both ends of the heat exchange plate (31). An mounting plate (35) is evenly fixed on the side of the connecting frame (32) away from the heat exchange plate (31). The top of the cooling tower body (1) is provided with a spray structure (4), and a fan (5) is fixed at the top of the cooling tower body (1).
2. The novel improved square counter-flow cooling tower according to claim 1, characterized in that: The cooling tower body (1) includes a tower body (11), a drain pipe (12), a side groove (13), a top groove (14), and a cooling chamber (15). The cooling chamber (15) is provided inside the tower body (11). The bottom of the tower body (11) outside the cooling chamber (15) is provided with a side groove (13). The drain pipe (12) is fixed at the bottom of the tower body (11). The top groove (14) is provided inside the tower body (11) at the top of the cooling chamber (15).
3. A novel improved square counter-flow cooling tower according to claim 1, characterized in that: The protective structure (2) includes a protective plate (21), filter holes (22), a limiting pin (23) and a limiting seat (24). The limiting seat (24) is evenly fixed on the outer wall of the outer tower body (11) of the side groove (13). The inner side of the limiting seat (24) is slidably connected to the protective plate (21). The interior of the protective plate (21) is evenly provided with filter holes (22). The top of the limiting seat (24) is threadedly connected to the limiting pin (23).
4. A novel improved square counter-flow cooling tower according to claim 3, characterized in that: The protective plates (21) are symmetrically distributed on both sides of the tower body (11). One end of each limiting pin (23) passes through the limiting seat (24) and extends into the interior of the protective plate (21). The limiting seat (24) is symmetrically distributed on both sides of the protective plate (21).
5. A novel improved square counter-flow cooling tower according to claim 1, characterized in that: The heat exchange plates (31) are evenly distributed on the inner side of the cooling chamber (15), the limiting holes (33) are evenly distributed inside the connecting frame (32), and the limiting shaft (34) and the connecting frame (32) are connected by interference fit through the limiting holes (33).
6. A novel improved square counter-flow cooling tower according to claim 1, characterized in that: The spray structure (4) includes an inlet pipe (41), a main pipe (42), a delivery pipe (43), a branch pipe (44), and a high-pressure nozzle (45). The delivery pipe (43) is uniformly fixed on the inner wall of the tower body (11) at the top of the cooling chamber (15). One end of the delivery pipe (43) extends to the outside of the tower body (11) and is fixed with the main pipe (42). The side of the main pipe (42) away from the delivery pipe (43) is fixed with the inlet pipe (41). The bottom end of the delivery pipe (43) is uniformly fixed with the branch pipe (44). The bottom end of the branch pipe (44) is fixed with the high-pressure nozzle (45).
7. A novel improved square counter-flow cooling tower according to claim 6, characterized in that: The end of the water inlet pipe (41) away from the main pipe (42) is connected to a hot water tank and a water pump, and the delivery pipes (43) are evenly distributed at the top of the cooling chamber (15).
8. A novel improved square counter-flow cooling tower according to claim 6, characterized in that: The diversion pipes (44) are evenly distributed at the bottom end of the delivery pipe (43).