Energy-saving and environment-friendly cooling tower

Abstract

This invention discloses an energy-saving and environmentally friendly cooling tower, relating to the field of industrial circulating water cooling technology. The tower includes a tower body, the interior of which is vertically divided into a spray zone, a heat exchange zone, and a water collection zone from top to bottom. A water distribution pipe is installed in the spray zone, heat exchange packing and coils are installed in the heat exchange zone, and multiple sets of louvers are installed on the side walls of the water collection zone. Two sets of air ducts are installed above the spray zone. A weather instrument is fixedly connected to the top of the tower body. A bypass return valve and a heat exchanger are installed outside the tower body. Each set of air ducts is connected to the spray zone. A support frame three is fixedly connected inside the air duct, and a geared motor is fixedly connected to the support frame three. The output shaft of the geared motor is fixedly connected to a fan wheel. Multiple sets of support frames one and two are fixedly connected inside the spray zone. The water distribution pipe is located between support frames one and two. Multiple sets of water collectors are installed above support frames one, and the water collectors are composed of multiple sets of corrugated plates. This invention features energy saving and environmental protection.

Description

Technical Field

[0001] This invention relates to the field of energy conservation and environmental protection technology, specifically to an energy-saving and environmentally friendly cooling tower. Background Technology

[0002] A closed-circuit cooling tower is a heat dissipation device used to cool and reduce the temperature of circulating media. A tubular heat exchanger is placed inside the tower, and the cooling effect is ensured by the heat exchange between the circulating air, spray water and the high-temperature process fluid. The high-temperature process fluid flows in a completely closed loop inside the coil, while water is evenly sprayed onto the surface of the coil by a spray pump to form a continuous water film, thereby removing heat. Throughout the process, the internal heat exchange medium does not come into contact with the external circulating medium.

[0003] The existing patent CN219265046U discloses a high-efficiency closed-loop cooling tower structure. However, the existing technology still has significant drawbacks in actual operation. Conventional closed-loop towers typically operate under fixed conditions, with spray water and air volume, unable to be precisely adjusted according to changes in ambient temperature, humidity, and cooling load. This leads to over-cooling during transitional seasons and under low-load conditions, resulting in waste of water and electricity, and a significant reduction in environmental performance. Therefore, designing an energy-saving and environmentally friendly cooling tower is essential. Summary of the Invention

[0004] The purpose of this invention is to provide an energy-saving and environmentally friendly cooling tower to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an energy-saving and environmentally friendly cooling tower, comprising a tower body, wherein the interior of the tower body is divided vertically from top to bottom into a spray zone, a heat exchange zone and a water collection zone, wherein a water distribution pipe is provided in the spray zone, heat exchange packing and coils are provided in the heat exchange zone, multiple sets of louvers are provided on the side walls of the water collection zone, two sets of air ducts are provided above the spray zone, a meteorological instrument is fixedly connected to the top of the tower body, and a bypass return valve and a heat exchanger are provided on the exterior of the tower body.

[0006] According to the above technical solution, each set of air ducts is connected to the spray area, and a support frame three is fixedly connected inside the air duct. A geared motor is fixedly connected to the support frame three, and a wind wheel is fixedly connected to the output shaft of the geared motor.

[0007] According to the above technical solution, multiple sets of bracket one and multiple sets of bracket two are fixedly connected inside the spray area. The water distribution pipe is set between bracket one and bracket two. Multiple sets of water collectors are set above bracket one. The water collectors are spliced ​​together from multiple sets of corrugated plates and are used to intercept small water droplets carried in the airflow and reduce water drift loss.

[0008] According to the above technical solution, the water distribution pipe is composed of two main pipes and multiple sets of branch pipes. The multiple sets of branch pipes are arranged horizontally between the two sets of main pipes. The branch pipes are arranged perpendicular to the main pipes. Each set of branch pipes has multiple sets of nozzles on the side near the heat exchange zone. The spray direction of the nozzles corresponds to the heat exchange packing. A water supply pipe is connected to the central pipe of the outer circle of one set of main pipes. The water supply pipe passes through the tower body and is equipped with a spray regulating valve.

[0009] According to the above technical solution, multiple sets of load-bearing beams are bolted below the heat exchange zone, and two sets of tube racks are fixedly connected above the load-bearing beams. The coil is set inside the tube rack and is formed by repeatedly bending multiple sets of parallel metal heat exchange tubes. Two sets of water inlet plates and two sets of water outlet plates are fixedly connected to the inner side wall of the heat exchange zone. The water outlet and water inlet of the multiple sets of metal heat exchange tubes are respectively connected to the water inlet plate and the water outlet plate. The water inlet plate is located above the water outlet plate. The water inlet plate and the water outlet plate are respectively connected to hot inlet pipe and cold outlet pipe. A temperature sensor is installed on the cold outlet pipe to detect the temperature of the process fluid after cooling.

[0010] According to the above technical solution, multiple sets of tie rods are fixedly connected inside the heat exchange zone. The heat exchange packing is located between the tie rods and the pipe rack. The heat exchange packing is fixedly connected above the pipe rack. The second support is located above the tie rods. A distance is left between the water distribution pipe and the heat exchange packing.

[0011] According to the above technical solution, the water collection area includes multiple sets of protective plates and multiple sets of bottom plates. The protective plates and bottom plates are fixedly connected to form a water collection tank. The water collection tank is used to receive spray water. A temperature sensor and a conductivity sensor are installed in the water collection tank of the water collection area. Multiple sets of louvers are installed above the protective plates for cold air to enter. A bottom frame is fixedly connected below the bottom plate.

[0012] According to the above technical solution, a water pump is installed on one side of the water collection area. The water pump is fixedly connected to the bottom frame. The water pump's suction port is connected to the protective plate pipe for sucking up the spray water in the water collection tank. The water pump's outlet is connected to the water delivery pipe for sending the water in the water collection tank into the water distribution pipe. A bypass pipe is connected between the water delivery pipe and the protective plate, and a bypass return valve is installed on the bypass pipe.

[0013] According to the above technical solution, the heat exchanger is connected in series on the water supply pipe. The inlet pipe and outlet pipe of the heat exchanger are respectively equipped with inlet valve and outlet valve, and the bypass return valve, outlet valve and inlet valve are arranged in sequence from top to bottom.

[0014] According to the above technical solution, the protective plate pipe is connected to a water supply pipe and a sewage discharge pipe, and the water supply pipe and the sewage discharge pipe are respectively equipped with a water supply valve and a sewage discharge valve.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: By setting heat exchange packing between the water distribution pipe and the coil, the spray water is pre-cooled by the air entering from the louvers through the packing layer before contacting the coil for heat exchange, thereby significantly increasing the heat transfer temperature difference inside and outside the coil and greatly improving the heat exchange efficiency of the coil; by setting a water collector above the water distribution pipe, it is possible to efficiently intercept and discharge small water droplets carried in the airflow, greatly reducing water drift loss, further saving water resources and reducing the impact on the external environment; by connecting a heat exchanger in series on the water supply pipe, it is possible to cool the high-temperature spray water when the heat absorption effect of the spray water is low in hot weather. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the fan structure of the present invention; Figure 4 This is a schematic diagram showing the disassembled structure of the spray zone of the present invention; Figure 5 This is a schematic diagram of the structure below the spray zone of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 For the present invention Figure 1 Enlarged view of point B in the middle; Figure 8 This is a schematic diagram showing the structure of the heat exchange zone of the present invention. Figure 9 This is a schematic diagram of the water collection area structure of the present invention; Figure 10 This is a top view of the structure of the present invention; Figure 11 This is a schematic diagram of the return pipeline of the present invention; In the diagram: 1. Tower body; 2. Spray zone; 3. Water pump; 4. Heat exchange zone; 5. Water collection zone; 6. Water distribution pipe; 7. Heat exchange packing; 8. Coil; 9. Louver; 10. Air duct; 11. Main pipe; 12. Branch pipe; 13. Water supply pipe; 14. Nozzle; 15. Load-bearing beam; 16. Pipe rack; 17. Inlet plate; 18. Outlet plate; 19. Tie rod; 20. Support 1; 21. Support 2 22. Water collector; 23. Support bracket three; 24. Gear motor; 25. Fan wheel; 26. Protective plate; 27. Base plate; 28. Base frame; 29. ​​Bypass return valve; 30. Heat exchanger; 31. Spray regulating valve; 32. Weather instrument; 33. Inlet valve; 34. Outlet valve; 35. Water supply valve; 36. Sewage valve; 37. Bypass pipe; 38. Temperature sensor one; 39. Conductivity sensor. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-11 The present invention provides a technical solution: an energy-saving and environmentally friendly cooling tower, comprising a tower body 1, the interior of which is divided vertically from top to bottom into a spray zone 2, a heat exchange zone 4, and a water collection zone 5. A water distribution pipe 6 is provided in the spray zone 2, and heat exchange packing 7 and coil 8 are provided in the heat exchange zone 4. Multiple sets of louvers 9 are provided on the side walls of the water collection zone 5. Two sets of air ducts 10 are provided above the spray zone 2. A weather instrument 32 is fixedly connected to the top of the tower body 1. The weather instrument 32 is composed of a temperature sensor, a humidity sensor, etc., which is prior art and will not be described in detail. A bypass return valve 29 and a heat exchanger 30 are provided on the outside of the tower body 1.

[0019] Each set of air ducts 10 is connected to the spray zone 2. Inside the air duct 10, a support 3 23 is fixedly connected. A geared motor 24 is fixedly connected to the support 3 23. The output shaft of the geared motor 24 is fixedly connected to the impeller 25. The impeller 25 consists of a hub and blades, which is existing technology and will not be described in detail.

[0020] The sprinkler zone 2 is fixedly connected to multiple sets of bracket 1 20 and multiple sets of bracket 21. The water distribution pipe 6 is set between bracket 1 20 and bracket 21. Multiple sets of water collectors 22 are set above bracket 1 20. The water collectors 22 are spliced ​​together from multiple sets of corrugated plates and are used to intercept small water droplets carried in the airflow to reduce water drift loss.

[0021] The water distribution pipe 6 is composed of two main pipes 11 and multiple sets of branch pipes 12. The multiple sets of branch pipes 12 are arranged horizontally between the two sets of main pipes 11. The branch pipes 12 are arranged perpendicular to the main pipes 11. Each set of branch pipes 12 has multiple sets of nozzles 14 on the side near the heat exchange zone 4. The spray direction of the nozzles 14 corresponds to the heat exchange packing 7. A water supply pipe 13 is connected to the central pipe of the outer circle of one set of main pipes 11. The water supply pipe 13 passes through the tower body 1 and is equipped with a spray regulating valve 31.

[0022] Multiple sets of load-bearing beams 15 are bolted below the heat exchange zone 4. Two sets of tube racks 16 are fixedly connected above the load-bearing beams 15. Coils 8 are installed inside the tube racks 16. Coils 8 are formed by repeatedly bending multiple sets of parallel metal heat exchange tubes. Two sets of inlet plates 17 and two sets of outlet plates 18 are fixedly connected to the inner side wall of the heat exchange zone 4. The outlet and inlet of the multiple sets of metal heat exchange tubes are connected to the inlet plates 17 and outlet plates 18, respectively. The inlet plates 17 are located above the outlet plates 18. The inlet plates 17 and outlet plates 18 are respectively connected to hot inlet pipes and cold outlet pipes. A temperature sensor 2 (not shown in the figure) is installed on the cold outlet pipe to detect the temperature of the process fluid after cooling.

[0023] The heat exchange zone 4 has multiple sets of tie rods 19 fixedly connected inside. The heat exchange packing 7 is located between the tie rods 19 and the pipe rack 16. The heat exchange packing 7 is fixedly connected above the pipe rack 16. The second support 21 is located above the tie rods 19. There is a distance between the water distribution pipe 6 and the heat exchange packing 7.

[0024] The water collection area 5 includes multiple sets of protective plates 26 and multiple sets of base plates 27. The protective plates 26 and base plates 27 are fixedly connected to form a water collection trough. The water collection trough is used to receive spray water. A temperature sensor 38 and a conductivity sensor 39 are installed in the water collection trough of the water collection area 5. Multiple sets of louvers 9 are installed above the protective plates 26 for cold air to enter. A base frame 28 is fixedly connected below the base plate 27.

[0025] A water pump 3 is installed on one side of the water collection area 5. The water pump 3 is fixedly connected to the bottom frame 28. The water inlet of the water pump 3 is connected to the protective plate 26 by a pipe for sucking up the spray water in the water collection tank. The water outlet of the water pump 3 is connected to the water delivery pipe 13 by a pipe for sending the water in the water collection tank into the water distribution pipe 6. A bypass pipe 37 is connected between the water delivery pipe 13 and the protective plate 26. A bypass return valve 29 is installed on the bypass pipe 37.

[0026] The heat exchanger 30 is connected in series with the water supply pipe 13. The inlet pipe and outlet pipe of the heat exchanger 30 are respectively equipped with an inlet valve 33 and an outlet valve 34. The bypass return valve 29, the outlet valve 34, and the inlet valve 33 are arranged in order from top to bottom.

[0027] The protective plate 26 is connected to a water supply pipe and a sewage discharge pipe, and the water supply pipe and the sewage discharge pipe are respectively equipped with a water supply valve 35 and a sewage discharge valve 36.

[0028] Example 1: The spray regulating valve 31 and the bypass return valve 29 on the main pipe 11 work together to regulate the amount of spray water. The temperature value of the temperature sensor 38 in the water collection tank is set to T1, and the temperature value of the temperature sensor 2 on the outlet plate 18 pipe of the heat exchange zone 4 is set to T2. The weather instrument 32 of the tower body 1 adjusts the valves according to different weather and environmental conditions to achieve energy-saving and environmentally friendly operation.

[0029] The cooling process includes the following steps: Step 1: System startup and initial state settings.

[0030] Turn on water pump 3, fully open spray regulating valve 31, and close bypass return valve 29 to allow spray water to enter water distribution pipe 6 through water supply pipe 13 at maximum flow rate. Start geared motor 24 to drive wind turbine 25 to rotate at full speed at rated frequency. At this time, spray water is evenly sprayed downward through each branch pipe 12 and nozzle 14 of water distribution pipe 6. External air enters tower body 1 through louver 9, and the system enters full-load cooling state.

[0031] Step 2: Pre-cool the spray water.

[0032] Specifically, after the water pump 3 starts, it draws low-temperature spray water from the water collection tank in the water collection area 5 and sprays it evenly downwards through the branch pipe 12 of the water distribution pipe 6. The spray water first falls onto the surface of the heat exchange packing 7 in the heat exchange zone 4. The spray water spreads on the large specific surface area of ​​the heat exchange packing 7 to form a thin water film, which directly contacts the air passing through the packing layer from bottom to top for heat exchange. The air carries away some of the heat carried by the spray water, thus lowering the temperature of the spray water and completing the pre-cooling.

[0033] Step 3: Coil 8 heat exchange and cooling.

[0034] Specifically, the pre-cooled spray water continues to fall, evenly covering the outer surface of the coil 8 in the heat exchange zone 4 in a dripping manner, forming a continuous water film. The high-temperature process fluid to be cooled enters the coil 8 through the heat inlet pipe and the water inlet plate 17, flowing in a completely closed loop inside the pipe. Heat is transferred to the water film outside the pipe through the pipe wall by thermal conduction. After absorbing heat, the water film partially evaporates, and the latent heat of vaporization is carried away by the air passing over the surface of the coil 8. The unevaporated spray water is heated and drips from the surface of the coil 8, flowing back to the water collection tank in the lower water collection zone 5, and then pumped by the water pump 3 for recycling.

[0035] Step 4: Exhausting heat from air and recovering drift water Specifically, after the air enters through the louver 9, it passes through the heat exchange zone 4, carrying heat and some water vapor as it continues to rise and enters the spray zone 2. When the air passes through the water collector 22, the small water droplets carried in the airflow are intercepted and recovered by the multiple turning structure of the corrugated baffle. After the water droplets gather, they fall back into the water collection tank. The dehydrated hot and humid air is discharged outside the tower through the air duct 10.

[0036] Step 5: Cooling and collecting the process fluid.

[0037] Specifically, the cooled process fluid is collected from the outlet of coil 8 to the water outlet plate 18, and then sent to the cold outlet pipe by the water outlet plate 18, and then discharged from tower 1 to be recycled at the user end. Temperature sensor 2 monitors the outlet temperature of the process fluid in real time.

[0038] Step Six: Adjust in real time according to needs.

[0039] Specifically, after the system is running stably, the weather instrument 32 collects ambient temperature and humidity data in real time to adjust the valve opening.

[0040] When the weather instrument 32 detects that the ambient temperature is higher than the preset high temperature threshold, the system determines that it is in a high temperature and high load condition. At this time, the spray regulating valve 31 is kept fully open, the bypass return valve 29 is closed, and the water pump 3 operates at rated power, so that all the spray water delivered by the water pump 3 enters the water distribution pipe 6. After being pre-cooled by the heat exchange packing 7 at the maximum flow rate, it covers the coil 8 for heat exchange. At the same time, the geared motor 24 operates at rated power, driving the fan wheel 25 to rotate at full speed, providing the maximum cooling air volume in conjunction with the maximum spray volume.

[0041] When the weather instrument 32 detects that the ambient temperature is lower than the preset low temperature threshold, the system determines that it is in a low temperature and low load condition. At this time, the opening of the spray regulating valve 31 is reduced to below 50%, reducing the amount of spray water entering the water distribution pipe 6. At the same time, the bypass return valve 29 is opened, so that half of the spray water flows back directly to the water collection tank through the bypass pipe 37, further reducing the amount of spray water entering the water distribution pipe 6, reducing ineffective evaporation, reducing the operating frequency of the water pump 3, so that the power of the water pump 3 matches the actual spray volume after the reduction, avoiding energy waste caused by bypass return, reducing the operating frequency of the geared motor 24, reducing the speed of the fan wheel 25, reducing the amount of cold air entering, and preventing the coil 8 and the water collection tank from freezing. If the spray volume is reduced by simply lowering the power of water pump 3, the speed of water pump 3 will be too low when the spray volume demand is small. At this time, the outlet head of water pump 3 is insufficient to support the normal spraying of water distribution pipe 6. Therefore, by opening the bypass return valve 29, the total circulation flow of water pump 3 can still be maintained in the stable operating range through the bypass pipe 37, avoiding the risk of instability caused by the low speed of water pump 3 and extending the service life of water pump 3.

[0042] Furthermore, when the weather instrument 32 detects that the external temperature is lower than the preset antifreeze threshold, the antifreeze protection is activated, the power of the water pump 3 is reduced, the spray regulating valve 31 is closed, the bypass return valve 29 is fully opened, and the water supply to the distribution pipe 6 is stopped, so that all the spray water flows back to the collection tank through the bypass pipe 37. The frequency of the geared motor 24 is reduced to the minimum operating speed or intermittently started and stopped to maintain a slight positive pressure in the tower and reduce the natural convection of cold air entering. At the same time, the temperature sensor 38 detects that the water temperature T1 in the collection tank is lower than zero. When the temperature reaches a certain level, the inlet valve 33, outlet valve 34, and heat exchanger 30 are opened. The heat exchanger 30 heats the water entering the inlet valve 33. The heated water flows from the outlet valve 34 into the water supply pipe 13. The heated water then returns to the water collection tank through the bypass pipe 37 and the bypass return valve 29. After the hot water enters the water collection tank, it mixes with the original cold water, raising the water temperature of the entire water collection tank. Through the bypass return valve 29 and the circulation with the water pump 3, the water inside the water collection tank is kept in a flowing state, preventing the water collection tank and pipeline from freezing and damaging the equipment.

[0043] Specifically, when water resources are scarce in the geographical location or when maximum water conservation is required, the dry cooling mode is activated. The spray regulating valve 31 is completely closed, the bypass return valve 29 is fully opened, the water pump 3 stops running, and the spray water circulation system is completely shut down. At this time, only the geared motor 24 drives the fan wheel 25, allowing outside air to enter through the louvers 9 and directly sweep across the surface of the coil 8, removing heat from the process fluids through pure dry air cooling. The ventilation volume can be controlled by adjusting the speed of the geared motor 24 to adapt to different dry cooling load requirements, achieving zero water consumption operation.

[0044] Example 2: Based on Example 1, this example adjusts the water spray in the water collection tank of water collection area 5 to address the special condition of insufficient cooling capacity caused by abnormally high water levels in summer due to high temperatures.

[0045] When temperature sensor 1 (38) detects that T1 exceeds the preset threshold and temperature sensor 2 detects that the outlet temperature T2 remains high, the system prioritizes fully opening the spray regulating valve 31 and completely closing the bypass return valve 29 by adjusting the valves. This allows all the spray water delivered by pump 3 to participate in the circulation, pre-cooling it through the heat exchange packing 7 at maximum flow rate before covering the coil 8. Simultaneously, the geared motor 24 is increased to its rated frequency, driving the impeller 25 to run at full speed to provide maximum cooling airflow. If both T1 and T2 return to the normal range after this adjustment, the current parameters are maintained; if the water temperature remains high, the next level of measures is initiated.

[0046] Furthermore, when maximizing conventional heat dissipation capacity is still insufficient, auxiliary heat exchange is activated. This involves opening inlet valve 33, outlet valve 34, heat exchanger 30, and bypass return valve 29, while reducing the spray regulating valve 31. Heat exchanger 30 cools the hot water passing through inlet valve 33, allowing some or all of the spray water to first flow through heat exchanger 30 for cooling, then enter the water collection tank through bypass pipe 37 to exchange with the hot water in the tank, and finally enter the water pump 3 for circulation. During the exchange process, a temperature sensor monitors the water temperature T1 in real time. When the water temperature drops below a set threshold, the bypass return valve 29 is first closed, the spray regulating valve 31 is fully opened, and then inlet valve 33, outlet valve 34, and heat exchanger 30 are closed to restore normal circulation. This solution provides a direct and rapid cooling effect.

[0047] When the conductivity sensor 39 installed in the water collection tank detects that the concentration ratio of the spray water exceeds the preset upper limit, the drain valve 36 of the drain pipe on the guard plate 26 is opened to discharge some of the high-concentration spray water. Then, the water supply valve 35 of the water supply pipe is opened to replenish fresh water, controlling the salt content of the spray water within a reasonable range. Finally, the drain valve 36 and the water supply valve 35 are closed to prevent scale buildup on the outer wall of the coil 8, which can extend the cleaning cycle of the coil 8, maintain long-term stable heat exchange efficiency, and avoid water waste caused by frequent overall water changes. Furthermore, the system reminds staff to check whether the heat exchange packing 7 is blocked by scale or impurities, and to clean or replace it if necessary. It also reminds staff to check whether there are any obstructions in the louvers 9 and to clean them. This is a regular maintenance measure, which ensures that the device meets the requirements of energy saving and water saving.

[0048] When temperature sensor 2 detects a temperature T2 greater than the preset target temperature value, but T1 is within the normal threshold, the frequency of the geared motor 24 is first increased to increase the airflow. If the temperature is still too high after the airflow reaches its upper limit, the opening of the spray regulating valve 31 is increased to increase the spray volume. If the spray volume has reached its upper limit, the bypass return valve 29 is closed to allow more water to participate in the circulation. When temperature sensor 2 detects a temperature T2 less than the preset target temperature value, the regulating values ​​are decreased in reverse order, prioritizing the reduction of the frequency of the geared motor 24 to save power, and then reducing the spray volume, so that the device operates at the lowest energy consumption condition that meets the cooling requirements during the trial.

[0049] 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.

[0050] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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. An energy-saving and environment-friendly cooling tower comprising a tower body (1), characterized in that, The tower body (1) is divided vertically from top to bottom into a spray zone (2), a heat exchange zone (4) and a water collection zone (5). A water distribution pipe (6) is installed in the spray zone (2). A heat exchange packing (7) and a coil (8) are installed in the heat exchange zone (4). Multiple sets of louvers (9) are installed on the side walls of the water collection zone (5). Two sets of air ducts (10) are installed above the spray zone (2). A weather instrument (32) is fixedly connected to the top of the tower body (1). A bypass return valve (29) and a heat exchanger (30) are installed outside the tower body (1).

2. The energy-saving and environment-friendly cooling tower according to claim 1, characterized in that, Each set of air ducts (10) is connected to the spray area (2). A bracket (23) is fixedly connected inside the air duct (10). A geared motor (24) is fixedly connected to the bracket (23). The output shaft of the geared motor (24) is fixedly connected to the impeller (25).

3. The energy-saving and environmentally friendly cooling tower according to claim 2, characterized in that, The spray area (2) is fixedly connected to multiple sets of bracket one (20) and multiple sets of bracket two (21). The water distribution pipe (6) is set between bracket one (20) and bracket two (21). Multiple sets of water collectors (22) are set above bracket one (20). The water collectors (22) are spliced ​​together from multiple sets of corrugated plates.

4. The energy-saving and environmentally friendly cooling tower according to claim 3, characterized in that, The water distribution pipe (6) is composed of two main pipes (11) and multiple sets of branch pipes (12). The multiple sets of branch pipes (12) are arranged horizontally between the two sets of main pipes (11). The branch pipes (12) are arranged vertically to the main pipes (11). Each set of branch pipes (12) has multiple sets of nozzles (14) on the side near the heat exchange zone (4). The spray direction of the nozzles (14) corresponds to the heat exchange packing (7). A water supply pipe (13) is connected to the outer central pipe of one set of main pipes (11). The water supply pipe (13) passes through the tower body (1). A spray regulating valve (31) is installed on the water supply pipe (13).

5. The energy-saving and environment-friendly cooling tower according to claim 4, characterized in that, The heat exchange zone (4) is bolted to a number of load-bearing beams (15) below. Two sets of pipe racks (16) are fixedly connected above the load-bearing beams (15). The coil (8) is set inside the pipe rack (16). The coil (8) is formed by repeatedly bending multiple sets of parallel metal heat exchange tubes. Two sets of inlet plates (17) and two sets of outlet plates (18) are fixedly connected to the inner side wall of the heat exchange zone (4). The outlet and inlet of the multiple sets of metal heat exchange tubes are respectively connected to the inlet plate (17) and the outlet plate (18). The inlet plate (17) is located above the outlet plate (18). The inlet plate (17) and the outlet plate (18) are respectively connected to a hot inlet pipe and a cold outlet pipe. A temperature sensor is installed on the cold outlet pipe.

6. The energy-saving and environment-friendly cooling tower according to claim 5, characterized in that, The heat exchange zone (4) is fixedly connected with multiple sets of tie rods (19). The heat exchange packing (7) is located between the tie rods (19) and the pipe rack (16). The heat exchange packing (7) is fixedly connected above the pipe rack (16). The second support (21) is located above the tie rods (19). There is a distance between the water distribution pipe (6) and the heat exchange packing (7).

7. The energy-saving and environment-friendly cooling tower according to claim 6, characterized in that, The water collection area (5) includes multiple sets of protective plates (26) and multiple sets of bottom plates (27). The protective plates (26) and bottom plates (27) are fixedly connected. A temperature sensor (38) and a conductivity sensor (39) are installed in the water collection tank of the water collection area (5). Multiple sets of louvers (9) are installed above the protective plates (26). A bottom frame (28) is fixedly connected below the bottom plate (27).

8. The energy-saving and environment-friendly cooling tower according to claim 7, characterized in that, A water pump (3) is provided on one side of the water collection area (5). The water pump (3) is fixedly connected to the bottom frame (28). The water inlet of the water pump (3) is connected to the protective plate (26) pipe. The water outlet of the water pump (3) is connected to the water delivery pipe (13) pipe. A bypass pipe (37) is connected between the water delivery pipe (13) and the protective plate (26). The bypass return valve (29) is installed on the bypass pipe (37).

9. The energy-saving and environment-friendly cooling tower according to claim 8, characterized in that, The heat exchanger (30) is connected in series on the water supply pipe (13). The inlet pipe and outlet pipe of the heat exchanger (30) are respectively equipped with an inlet valve (33) and an outlet valve (34). The bypass return valve (29), outlet valve (34) and inlet valve (33) are arranged from top to bottom.

10. The energy-saving and environment-friendly cooling tower according to claim 9, characterized in that, The protective plate (26) is connected to a water supply pipe and a sewage discharge pipe, and the water supply pipe and the sewage discharge pipe are respectively equipped with a water supply valve (35) and a sewage discharge valve (36).

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