Large-temperature-difference composite evaporative air cooler
By combining the segmented heat exchange design with the spray system, the problem of high water consumption of evaporative air coolers in large temperature difference environments is solved, and a high-efficiency and energy-saving heat exchange effect is achieved.
Patent Information
- Application Number
- CN202422091726.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-08-28
AI Technical Summary
Existing evaporative air coolers have a large heat exchange rate under large temperature difference environments, which leads to increased water consumption and higher heat exchange costs. Conventional structures cannot meet the needs.
A segmented heat exchange design is adopted, including an evaporation tube bundle inside the shell and an air-cooling tube bundle outside. The air-cooling tube bundle first exchanges heat with the high-temperature section, and the low-temperature section is further heat-exchanged through the evaporation tube bundle. Combined with the spray system and fan, water utilization efficiency is optimized.
It improves heat exchange efficiency, reduces water consumption, saves energy, and adapts to heat exchange requirements in environments with large temperature differences.
Smart Images
Figure CN223412530U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air coolers, in particular to a large temperature difference composite evaporative air cooler. Background Art
[0002] Evaporative air cooler is a high-efficiency and energy-saving cooling equipment that integrates water cooling and air cooling, heat transfer and mass transfer processes and has the advantages of both. It has the advantages of high heat transfer efficiency, low operating costs, easy installation and maintenance, and has broad application prospects in industries such as oil refining, metallurgy, electric power, refrigeration, and light industry.
[0003] At present, the evaporative air cooler requires a large amount of heat exchange in a large temperature difference environment, resulting in a large amount of water required. The heat exchange efficiency of the conventional structure cannot meet the heat exchange requirements in a large temperature difference environment, while increasing water consumption and raising the heat exchange cost. Summary of the Invention
[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a large temperature difference composite evaporative air cooler, which can not only improve the heat exchange efficiency through segmented heat exchange, but also reduce water consumption and save energy, and can effectively solve the problems in the background technology.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a large temperature difference composite evaporative air cooler, comprising a shell, air inlet windows symmetrically provided on both sides of the lower end of the shell, an evaporative tube bundle and a spray system provided inside the shell from bottom to top, the evaporative tube bundle being located above the air inlet window, a fan being provided on the top of the shell, an air-cooling tube bundle being provided on the outside of the shell, the air-cooling tube bundle comprising a finned tube, an air-cooling section outlet pipe and an air-cooling section inlet pipe, the air-cooling section inlet pipe being connected to one end of the finned tube, the other end of the finned tube being connected to the air-cooling section outlet pipe, the air-cooling section outlet pipe being located above the spray system, and the air-cooling section outlet pipe being connected to the upper end of the evaporative tube bundle.
[0006] As an optimal technical solution of the present invention, the evaporation tube bundles are symmetrically arranged on both sides of the shell, and the number of the air-cooling tube bundles is two groups, which are symmetrically arranged on the outside of the shell, and each group of air-cooling tube bundles is connected to a corresponding evaporation tube bundle.
[0007] As a preferred technical solution of the present invention, the air-cooling tube bundle is arranged vertically.
[0008] As a preferred technical solution of the present invention, a spray water tank is provided at the bottom of the shell, and one end of the spray water tank is connected to the spray system through a spray water pump.
[0009] As an optimal technical solution of the present utility model, the spray system includes a spray water valve, a spray water supply pipe, a water collecting tank, a spray water pipe and a nozzle. One end of the spray water pipe is connected to the water collecting tank through the spray water supply pipe. A spray water valve is provided on the spray water supply pipe. The spray water pipe is provided on one side of the water collecting tank. The nozzles are evenly distributed on the lower side of the spray water pipe.
[0010] As a preferred technical solution of the present invention, a baffle is provided at the upper end of the shell facing the position of the air-cooling tube bundle.
[0011] As a preferred technical solution of the present invention, a water collector is provided above the spray system.
[0012] Compared with the prior art, the beneficial effects of the present invention are: the large temperature difference composite evaporative air cooler is reasonably designed and ingeniously conceived. By setting the evaporating tube bundles separately, the heat exchange efficiency between water and the evaporating tube bundles is improved. At the same time, air-cooling tube bundles are set on both sides of the shell. Under a large temperature difference environment, the high-temperature section of the evaporating tube bundle is first exchanged with heat through the air-cooling tube bundle, and the low-temperature section is heat exchanged through evaporation, thereby improving the heat exchange efficiency and reducing the demand for water in the evaporative heat exchange, thereby achieving the purpose of energy saving. The air-cooling tube bundles are arranged vertically, which can reduce the layout space and adapt to use in more scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic structural diagram of the utility model.
[0014] In the figure: 1 fan, 2 air-cooling tube bundle, 21 finned tube, 22 air-cooling section outlet pipe, 23 air-cooling section inlet pipe, 3 water collector, 4 spray system, 41 spray water valve, 42 spray water supply pipe, 43 water collecting tank, 44 spray water pipe, 45 nozzle, 5 evaporating tube bundle, 6 air inlet window, 7 spray water tank, 8 spray water pump, 9 baffle, 10 shell. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiment of the present invention to clearly and completely describe the technical solutions in the embodiment of the present invention. Obviously, the embodiment described is only a part of the embodiment of the present invention, rather than all the embodiments (for the convenience of description and understanding, the following is Figure 1 Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.
[0016] See also Figure 1The utility model provides a technical solution: a large temperature difference composite evaporative air cooler, comprising a shell 10, with air inlet windows 6 symmetrically arranged on both sides of the lower end of the shell 10, an evaporation tube bundle 5 and a spray system 4 are respectively arranged from bottom to top inside the shell 10, the spray system 4 comprises a spray water valve 41, a spray water upper water pipe 42, a water collecting tank 43, a spray water pipe 44 and a nozzle 45, one end of the spray water pipe 44 is connected to the water collecting tank 43 through the spray water upper water pipe 42, a spray water valve 41 is arranged on the spray water upper water pipe 42, the spray water pipe 44 is arranged on one side of the water collecting tank 43, and the nozzles 45 are evenly distributed on the lower side of the spray water pipe 44, the evaporation tube bundle 5 is located above the air inlet window 6, a fan 1 is arranged on the top of the shell 10, and an air cooling tube bundle 2 is arranged on the outside of the shell 10. 2 includes finned tubes 21, air-cooling section outlet pipes 22, and air-cooling section inlet pipes 23. The air-cooling section inlet pipe 23 is connected to one end of the finned tubes 21, and the other end of the finned tubes 21 is connected to the air-cooling section outlet pipe 23. The air-cooling section outlet pipe 23 is located above the spray system 4 and is connected to the upper end of the evaporator tube bundle 5. When high-temperature water passes through the air-cooling tube bundle 2, it first exchanges heat with cold air. The heat exchange temperature range of air cooling is 70-130°C. The high-temperature section can be heat-exchanged through the finned tubes 21 first. The heat-exchanged water enters the evaporator tube bundle 5 and exchanges heat with the water sprayed from the spray system 4 again. The temperature range of evaporation heat exchange is 40-70°C. The low-temperature section exchanges heat through evaporation. This can improve heat exchange efficiency. Heat exchange is mainly achieved through air cooling, reducing the demand for spray water and saving energy.
[0017] Furthermore, in order to improve the heat exchange efficiency, the evaporation tube bundle 5 is symmetrically arranged on both sides of the shell 10, and the number of air-cooling tube bundles 2 is two groups. The two groups of air-cooling tube bundles 2 are symmetrically arranged on the outside of the shell 10, and each group of air-cooling tube bundles 2 is connected to one evaporation tube bundle 5.
[0018] Furthermore, in order to save installation space, the air-cooling tube bundle 2 is arranged vertically.
[0019] Furthermore, in order to realize the recycling of water and save energy, a spray water tank 7 is provided at the bottom of the shell 10 , and one end of the spray water tank 7 is connected to the spray system 4 through a spray water pump 8 .
[0020] Furthermore, in order to achieve the purpose of demisting, a baffle 9 is provided at the upper end of the shell 10 facing the air-cooling tube bundle 2. After the cold air enters from the side of the air-cooling tube bundle, it is mixed with the humid hot air after heat exchange in the baffle 9 to form dry hot air, thereby avoiding the generation of white fog. A water collector 3 is provided above the spray system 4. After the cold air exchanges heat with the humid hot air, part of the humid hot air will condense into water droplets and be recovered through the water collector 3.
[0021] During use, high-temperature water enters the finned tubes 21 from the air-cooling section inlet pipes 23 on both sides. Under the action of the fan 1, the high-temperature water in the high-temperature section is first heat-exchanged by the cold air. After the heat exchange, it enters the evaporation tube bundle 5 connected to each other through the air-cooling section outlet pipe 22. The spray water sprayed by the nozzle 45 exchanges heat with the evaporation tube bundle 5 again, thereby achieving the purpose of heat exchange in an environment with a large temperature difference and greatly improving the heat exchange efficiency.
[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A large temperature difference composite evaporative air cooler, comprising a shell (10), air inlet windows (6) symmetrically provided on both sides of the lower end of the shell (10), an evaporation tube bundle (5) and a spray system (4) provided inside the shell (10) from bottom to top, the evaporation tube bundle (5) being located above the air inlet windows (6), and a fan (1) provided on the top of the shell (10), characterized in that: An air-cooling tube bundle (2) is provided on the outside of the shell (10), and the air-cooling tube bundle (2) includes a finned tube (21), an air-cooling section outlet pipe (22), and an air-cooling section inlet pipe (23). The air-cooling section inlet pipe (23) is connected to one end of the finned tube (21), and the other end of the finned tube (21) is connected to the air-cooling section outlet pipe (23). The air-cooling section outlet pipe (23) is located above the spray system (4), and the air-cooling section outlet pipe (23) is connected to the upper end of the evaporation tube bundle (5).
2. The large temperature difference composite evaporative air cooler according to claim 1, characterized in that: The evaporation tube bundle (5) is symmetrically arranged on both sides of the shell (10), the number of the air-cooling tube bundle (2) is two groups, and the two groups of air-cooling tube bundles (2) are symmetrically arranged on the outside of the shell (10), and each group of air-cooling tube bundles (2) is correspondingly connected to an evaporation tube bundle (5).
3. The large temperature difference composite evaporative air cooler according to claim 1, characterized in that: The air-cooling tube bundle (2) is arranged vertically.
4. The large temperature difference composite evaporative air cooler according to claim 1, characterized in that: A spray water tank (7) is provided at the bottom of the housing (10), and one end of the spray water tank (7) is connected to the spray system (4) via a spray water pump (8).
5. The large temperature difference composite evaporative air cooler according to claim 4, characterized in that: The spray system (4) comprises a spray water valve (41), a spray water upper water pipe (42), a water collecting tank (43), a spray water pipe (44) and a spray head (45). One end of the spray water pipe (44) is connected to the water collecting tank (43) through the spray water upper water pipe (42). The spray water valve (41) is provided on the spray water upper water pipe (42). The spray water pipe (44) is provided on one side of the water collecting tank (43). The spray heads (45) are evenly distributed on the lower side of the spray water pipe (44).
6. A large temperature difference composite evaporative air cooler according to claim 1 or 2, characterized in that: A baffle (9) is provided at the upper end of the shell (10) facing the air-cooling tube bundle (2).
7. The large temperature difference composite evaporative air cooler according to claim 1, characterized in that: A water collector (3) is provided above the spray system (4).