Spray precooling type air cooler and temperature control method thereof

Abstract

The invention relates to the technical field of air cooler equipment, and discloses a spray precooling type air cooler and a temperature control method thereof.The spray precooling type air cooler comprises an air cooler, a water storage tank and a water pump, main pipelines are fixedly connected to the two sides of the interior of the air cooler, a plurality of nozzles are arranged on the outer sides of the main pipelines, and multi-mode spraying mechanisms are arranged in the nozzles; the multi-mode spraying mechanism is used for automatically adjusting the spraying mode, and an area adjusting mechanism is arranged on the outer side of the main pipeline and used for adjusting the spraying area. Liquid impacts the spiral fan blades to drive the rotating column and the rotating bevel stop block to rotate, meanwhile, the liquid is guided by the conical water stop block to enter the water inlet cavity, when the pressure of the liquid overcomes the thrust of the telescopic spring, the rotating bevel stop block moves upwards, the liquid is sprayed out of the water spraying opening through the inclined notch, and the power of the water pump is adjusted to change the water pressure; and the rotary bevel stop block moves at different positions, so that different spraying modes are switched.

Description

Technical Field

[0001] This invention relates to the field of air cooler equipment technology, specifically to a spray pre-cooling air cooler and its temperature control method. Background Technology

[0002] In high-temperature medium cooling scenarios in industrial production and power transmission, air coolers are the core heat exchange equipment to ensure stable process operation. Spray pre-cooling air coolers spray water mist into the air inlet of the air cooler, and use the evaporation of water mist to absorb heat and reduce the inlet air temperature, thereby improving heat exchange efficiency. They are especially suitable for high-temperature conditions where the ambient temperature exceeds the design threshold, and have become a key equipment type to solve the problem of heat exchange efficiency decay of traditional air coolers.

[0003] Early spray pre-cooling air coolers mainly consisted of a water tank, a water pump, fixed pipes, and a single-structure nozzle. Their core defect was the insufficient ability to adjust the spray pattern. The nozzles of these devices could only achieve a single intensity and a single pattern of spray output, and could not adjust the spray state according to the actual heat exchange requirements. When the ambient temperature was low or the heat exchange load was small, excessive spraying would waste water resources. When the temperature rose sharply or the heat exchange pressure increased, the fixed spray intensity could not quickly meet the pre-cooling requirements, resulting in fluctuations in heat exchange efficiency. To solve this problem, existing technologies have developed devices that allow manual adjustment of the spray volume, which can adjust the spray intensity by adding a flow regulating valve or replacing nozzles with different orifice diameters.

[0004] However, there are still shortcomings. On the one hand, the adjustment process relies on manual operation, and the response lags behind changes in operating conditions, making it impossible to achieve real-time adaptive adjustment. On the other hand, the spray pattern of the existing nozzles is fixed, and can only achieve continuous spraying, making it difficult to form differentiated spraying effects such as pulse spraying. This results in poor uniformity of water mist and air mixing, affecting further improvement of precooling efficiency. In addition, the spray mode switching of existing equipment mostly relies on complex electronic control systems, which not only have high structural costs but are also prone to affecting operational stability due to circuit failures. Furthermore, it cannot automatically adapt to different spraying needs through dynamic changes in water supply pressure, making it difficult to balance adjustment flexibility and operational reliability. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a spray pre-cooling air cooler and its temperature control method, which solves the problems of manual adjustment, slow response, fixed spray pattern and poor mixing uniformity, making it difficult to balance adjustment flexibility, pre-cooling efficiency and operational reliability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a spray pre-cooling air cooler and its temperature control method, comprising an air cooler, a water storage tank, and a water pump. A main pipe is fixedly connected to both sides of the interior of the air cooler. Multiple nozzles are arranged on the outer side of the main pipes. A multi-mode spraying mechanism is arranged inside each nozzle, used to automatically adjust the spraying mode. An area adjustment mechanism is arranged on the outer side of the main pipes, used to adjust the spraying area. A windproof recovery mechanism is arranged on the inner side of the air cooler, used for windproofing and recovering excess water mist.

[0007] The multi-mode spraying mechanism includes a rotating column, the bottom end of which is rotatably connected to the inner side of the nozzle. A spiral fan blade is fixedly connected to the top of the rotating column. A locking strip is fixedly connected to the outer wall of the rotating column. A water inlet cavity is opened in the middle of the outer side of the rotating column. A conical water-blocking block is fixedly connected to the inner side of the nozzle. A telescopic spring is fixedly connected to the outer side of the conical water-blocking block. A rotating oblique-mouth blocking block is sleeved on the outer side of the rotating column. The rotating oblique-mouth blocking block is slidably connected to the outer side of the locking strip. Multiple spray nozzles are opened on the outer side of the nozzle. A limiting ring is fixedly connected to the inner side of the nozzle. A water outlet is opened on the outer side of the rotating column. The water outlet is connected to the water inlet cavity.

[0008] Preferably, the area adjustment mechanism includes multiple arc-shaped blocks, which are slidably connected to the outer periphery of the main pipe. A limiting strip is fixedly connected to the outer wall of the main pipe. The arc-shaped blocks are slidably connected to the outer side of the limiting strip. Folding plates are rotatably connected to the outer sides of adjacent arc-shaped blocks. An L-shaped sliding strip is rotatably connected to the middle of the folding plate. Two sets of electric telescopic rods are fixedly connected to the bottom of the air cooler. Hollow connecting strips are fixedly connected to the bottom ends of the two sets of electric telescopic rods. The side of the L-shaped sliding strip away from the folding plate is slidably connected to the outer side of the hollow connecting strip. The nozzle is fixedly connected to the outer wall of the arc-shaped block. An elastic auxiliary pipe is connected to the top of the nozzle. The elastic auxiliary pipe is connected to the main pipe.

[0009] Preferably, the windproof recovery mechanism includes a collection block, which is fixedly connected to the bottom of the air cooler. A conical collection groove is formed on the inner side of the collection block, and a recovery pipe is connected to the outer side of the collection block. One end of the recovery pipe is connected to the conical collection groove, and the other end of the recovery pipe is connected to the pipe between the water storage tank and the water pump. A valve is fixedly connected to the outer side of the recovery pipe. Multiple arc-shaped wind deflectors are rotatably connected around the top of the collection block, and a coil spring is fixedly connected to the bottom end of the arc-shaped wind deflectors.

[0010] Preferably, the water storage tank is connected to the water pump, and the other end of the water pump is connected to two branch pipes. The other end of each branch pipe is connected to the right end of the main pipe. A flow meter is fixedly connected to the outside of each branch pipe, and a pressure gauge is fixedly connected to the outside of the main pipe. A ball valve is fixedly connected to the outside of the pipe between the water pump and the two branch pipes.

[0011] Preferably, the top of the limiting ring is provided with balls, which roll and abut against the rotating inclined blocking block, and the balls are evenly distributed along the circumference of the limiting ring.

[0012] Preferably, the outer side of the rotating oblique blocking block is provided with a plurality of inclined recesses, which are equidistantly arranged around the outer side of the rotating oblique blocking block.

[0013] Preferably, one of the arc-shaped blocks is fixedly connected to the middle of the main pipe, and the two ends of the folding plate are respectively hinged to the outer sides of the adjacent arc-shaped blocks.

[0014] Preferably, the inner groove of the hollow connecting slide bar is a T-shaped groove structure, the end of the L-shaped sliding bar is provided with a limiting slider, and the outer side of the limiting slider is wrapped with a wear-resistant rubber layer.

[0015] Preferably, the end of the coil spring away from the arc-shaped windbreak is fixedly connected to the collecting block, and the bottom of the conical collecting trough is inclined toward the direction of the recycling pipe.

[0016] A temperature control method for a spray pre-cooled air cooler includes the following steps: S1. Open the ball valve to allow tap water in the water storage tank to enter the water supply circuit. Before starting the water pump, confirm that the initial pressure of the main pipeline is within the preset safe range using a pressure gauge. Calibrate the initial water supply flow using a flow meter to ensure that the electric telescopic rod is in the retracted state, the arc-shaped wind baffle is kept vertically extended under the action of the coil spring, and the valve is in the closed state. S2. Start the water pump. The liquid is transported to the main pipeline through the branch pipeline, and then distributed to each nozzle through the flexible auxiliary pipe. The liquid impacts the spiral fan blades, causing the rotating column and the rotating inclined baffle to rotate synchronously. At the same time, the liquid is guided into the water inlet cavity by the conical baffle and flows into the inner area of ​​the limiting ring from the outlet. According to the pressure data of the pressure gauge and the air inlet temperature requirement of the air cooler, adjust the operating power of the water pump. When a low degree of spray is required, the water pressure pushes the rotating inclined baffle to not move completely upward. At this time, the inclined notch and the spray nozzle are on the same horizontal plane, forming a ring pulse spray. When a high degree of spray is required, the water pressure increases, causing the rotating inclined baffle to move completely upward. At this time, all spray nozzles spray synchronously. The flow rate change is monitored in real time by the flow meter to ensure that the spray volume matches the heat exchange requirements. S3. Based on the changes in the heat exchange pressure of the air cooler, the linkage zone adjustment mechanism adjusts the spray range. When the inlet air temperature is ≤40℃, the electric telescopic rod extends, driving the hollow connecting slide bar to move down. The L-shaped sliding bar slides along the inner groove of the hollow connecting slide bar and is linked with the folding plate, pushing all non-central arc blocks to gather towards the fixed central arc block. The nozzles spray synchronously in the center. The flow rate decrease is observed through the flow meter to achieve water-saving local pre-cooling. When the inlet air temperature is >40℃, the electric telescopic rod retracts, the hollow connecting slide bar moves up, and the folding plate unfolds to make the arc blocks evenly distributed. The nozzles spray the entire air cooler core. The pressure is maintained by the pressure gauge to ensure the pre-cooling intensity. S4. When the outside wind force increases, the arc-shaped wind deflector rotates around the collection block under the action of the wind force and compresses the coil spring. The arc-shaped wind deflectors corresponding to the wind direction fit together to form a wind-blocking structure, which prevents the water mist from being blown away and affecting the pre-cooling efficiency. At the same time, the unevaporated atomized liquid droplets fall into the conical collection groove of the collection block. When the flow meter shows that the water supply flow is insufficient or the water level in the storage tank is low, the valve is opened and the recovered liquid flows back to the pipeline between the water pump and the storage tank through the recovery pipeline, and re-participates in the spray cycle. The water supply pressure after the return is calibrated by the pressure gauge to maintain a stable pre-cooling effect. S5. When the air cooler inlet temperature is stable at ≤40℃ and has been running for a period of time, reduce the water pump operating power, close the ball valve, and when the flow meter shows zero flow, turn off the water pump, control the electric telescopic rod to reset and retract, so that the nozzles return to the full range distribution state. After the wind force weakens, the arc-shaped wind baffle returns to the vertical state under the action of the spring return force, close the valve, and complete the temperature control process.

[0017] This invention provides a spray pre-cooled air cooler and its temperature control method. It has the following beneficial effects: 1. This invention starts a water pump, and the liquid in the storage tank enters the main pipeline through the branch pipeline, and then flows into each nozzle through the area adjustment mechanism. The liquid hits the spiral fan blades, which drives the rotating column and the rotating inclined blocking block to rotate. At the same time, it is guided into the water inlet cavity by the conical water baffle and flows out from the water outlet. When the liquid pressure overcomes the thrust of the extension spring, the rotating inclined blocking block moves upward, and the liquid is sprayed out from the spray nozzle through the inclined concave notch. Adjusting the water pump power changes the water pressure, thereby moving the rotating inclined blocking block to different positions, and thus switching different spray modes.

[0018] 2. In this invention, the electric telescopic rod retracts, the hollow connecting slide bar is in a high position, the folding plate is horizontally unfolded, and the arc-shaped blocks are evenly distributed. At this time, the nozzle spray area is at its maximum. When the heat exchange pressure of the air cooler is low, the electric telescopic rod is activated to extend, which drives the hollow connecting slide bar to move down. The L-shaped sliding pull bar moves accordingly, and then the folding plate pulls the arc-shaped blocks to gather towards the center. The nozzles gather synchronously to achieve local spraying, so the spray area can be adjusted according to the difference in ambient temperature.

[0019] 3. In this invention, unevaporated atomized liquid droplets fall into the conical collection trough of the collection block. When the liquid in the storage tank is used up, the valve is opened, and the collected liquid flows back to the pipeline between the water pump and the storage tank through the recovery pipeline, and participates in atomization and cooling again. After the storage tank is full, the valve is closed. At the same time, when the outside wind increases, the arc-shaped wind deflector rotates under the wind force and compresses the coil spring. The arc-shaped wind deflector corresponding to the wind direction forms a windbreak wall, thereby preventing the water mist from being blown away and recycling the unevaporated liquid. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a schematic diagram of the air cooler of the present invention; Figure 4 This is a schematic diagram of the area adjustment mechanism of the present invention; Figure 5 for Figure 4 A magnified view of point A; Figure 6 This is a cross-sectional view of the nozzle of the present invention; Figure 7 This is a schematic diagram of the rotating column of the present invention; Figure 8 This is a schematic diagram of the windproof recovery mechanism of the present invention.

[0021] The components include: 1. Air cooler; 2. Multi-mode spraying mechanism; 21. Rotating column; 22. Engaging strip; 23. Spiral fan blade; 24. Water inlet cavity; 25. Conical water baffle; 26. Telescopic spring; 27. Rotating oblique blocking block; 28. Spray nozzle; 29. ​​Limiting ring; 210. Water outlet; 3. Zone adjustment mechanism; 31. Arc-shaped block; 32. Limiting strip; 33. Folding plate; 34. L-shaped sliding strip; 35. Electric telescopic rod; 36. Hollow connecting slide bar; 37. Elastic joint pipe; 4. Windproof recovery mechanism; 41. Collection block; 42. Conical collection trough; 43. Coil spring; 44. Arc-shaped wind baffle; 45. Recovery pipe; 46. Valve; 5. Water storage tank; 6. Water pump; 7. Main pipe; 8. Nozzle; 9. Branch pipe; 10. Flow meter; 11. Pressure gauge; 12. Ball valve. Detailed Implementation

[0022] The technical solutions in 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.

[0023] Example 1: Please see the appendix Figure 3 Appendix Figure 6 and attached Figure 7 This invention provides a spray pre-cooling air cooler and its temperature control method, including an air cooler 1, a water storage tank 5 and a water pump 6. The air cooler 1 has a main pipe 7 fixedly connected to both sides inside. Multiple nozzles 8 are provided on the outside of the main pipe 7. A multi-mode spraying mechanism 2 is provided inside the nozzles 8. The multi-mode spraying mechanism 2 is used to automatically adjust the spraying mode. An area adjustment mechanism 3 is provided on the outside of the main pipe 7. The area adjustment mechanism 3 is used to adjust the spraying area. A windproof recovery mechanism 4 is provided on the inside of the air cooler 1. The windproof recovery mechanism 4 is used to prevent wind and recover excess water mist. The multi-mode spraying mechanism 2 includes a rotating column 21, the bottom end of which is rotatably connected to the inside of the nozzle 8, a spiral fan blade 23 fixedly connected to the top of the rotating column 21, multiple locking strips 22 fixedly connected to the outer wall of the rotating column 21, a water inlet cavity 24 opened in the middle of the outer side of the rotating column 21, a conical water baffle 25 fixedly connected to the inside of the nozzle 8, a telescopic spring 26 fixedly connected to the outside of the conical water baffle 25, a rotating inclined blocking block 27 sleeved on the outside of the rotating column 21, the inner side of the rotating inclined blocking block 27 being slidably connected to multiple locking strips 22, multiple spray nozzles 28 opened on the outside of the nozzle 8, a limiting ring 29 fixedly connected to the inside of the nozzle 8, and a water outlet 210 opened on the outside of the rotating column 21, which is connected to the water inlet cavity 24. The water storage tank 5 is connected to the water pump 6. The other end of the water pump 6 is connected to two branch pipes 9. The other end of the branch pipes 9 is connected to the right end of the corresponding main pipe 7. A flow meter 10 is fixedly connected to the outside of the branch pipes 9. A pressure gauge 11 is fixedly connected to the outside of the main pipe 7. A ball valve 12 is fixedly connected to the outside of the pipe between the water pump 6 and the two branch pipes 9. A ball is provided on the top of the limiting ring 29. The ball rolls against the rotating inclined blocking block 27. The ball is evenly distributed along the circumference of the limiting ring 29. Multiple inclined notches are opened on the outside of the rotating inclined blocking block 27. The multiple inclined notches are equidistantly surrounding the outside of the rotating inclined blocking block 27. Specifically, the water storage tank 5 stores the liquid transported from the tap water pipe. The water pump 6 then extracts the liquid and transports it into the branch pipes 9 on both sides, then into the main pipe 7. Subsequently, the liquid flows through the area adjustment mechanism 3 into each nozzle 8. Initially, the telescopic spring 26 pushes the rotating inclined blocking block 27 towards the bottom of the nozzle 8. At this time, the upper area of ​​the rotating inclined blocking block 27 comes into contact with the multiple spray nozzles 28 located on the outside of the nozzle 8, thus blocking the spray nozzles 28 and preventing residual liquid from flowing through the nozzles 8, thereby shutting down the entire nozzle 8 system. As the liquid supplied by the water pump 6 enters through the top of the nozzle 8, its flow impacts the spiral fan blade 23, causing it to rotate. This, in turn, drives the rotating column 21 to rotate as well. The engagement between the locking strip 22 on the outer side of the rotating column 21 and the rotating oblique stop block 27 ensures that the rotation of the rotating column 21 drives the rotating oblique stop block 27 to rotate as well. The top of the limiting ring 29 is designed with ball bearings to prevent low rotational efficiency caused by friction between the rotating oblique stop block 27 and the limiting ring 29 during rotation. Simultaneously, when the liquid passes through… Following the spiral fan blade 23, guided by the conical baffle block 25, the liquid enters the inlet cavity 24 located above the rotating column 21, and then enters the bottom area of ​​the nozzle 8 and the inner area of ​​the limiting ring 29 through the outlet 210 below. When the liquid pressure is greater than the thrust of the extension spring 26, the rotating oblique stop block 27 moves upward under the constraint of the rotating column 21 and the locking strip 22. When the inclined recess in the rotating oblique stop block 27 is at the same level as the spray nozzle 28, the liquid will pass through the rotating oblique stop block. The inclined notch in 27 enters the spray nozzle 28 and is sprayed out. At this time, the liquid in the nozzle 8 flows, the spiral fan blade 23 rotates, and the rotating inclined blocking block 27 rotates, so that the nozzle 8 produces a ring pulse spray effect. When the liquid pressure continues to increase, the bottom end of the rotating inclined blocking block 27 is not at the same horizontal position as the spray nozzle 28. At this time, multiple spray nozzles 28 above the nozzle 8 spray at the same time. Through the operating power of the water pump 6, the nozzle 8 sprays in different modes, thereby reducing the water consumption when the temperature difference is low.

[0024] Please see the appendix Figure 3 Appendix Figure 4 and attached Figure 5The area adjustment mechanism 3 includes multiple arc-shaped blocks 31. The inner side of the arc-shaped blocks 31 is slidably connected to the outer side of the main pipe 7. A limiting strip 32 is fixedly connected to the outer wall of the main pipe 7. The inner side of the multiple arc-shaped blocks 31 is slidably connected to the limiting strip 32. The outer side of adjacent arc-shaped blocks 31 is rotatably connected to a folding plate 33. An L-shaped sliding strip 34 is rotatably connected to the middle of the folding plate 33. Two sets of electric telescopic rods 35 are fixedly connected to the bottom of the air cooler 1. Hollow connecting strips 36 are fixedly connected to the bottom end of the two sets of electric telescopic rods 35. The outer side of the multiple L-shaped sliding strips 34 is slidably connected to the inner side of the corresponding hollow connecting strips 36. The nozzle 8 is fixedly connected to the outer wall of the arc-shaped blocks 31. The top of the nozzle 8 is connected to an elastic secondary pipe 37. The elastic secondary pipe 37 is connected to the main pipe 7. One of the arc-shaped blocks 31 is fixedly connected to the middle of the main pipe 7, and the two ends of the folding plate 33 are respectively hinged to the outer side of the adjacent arc-shaped blocks 31; the inner groove of the hollow connecting slide bar 36 is a T-shaped groove structure, and the end of the L-shaped sliding bar 34 is provided with a limit slider, and the outer side of the limit slider is wrapped with a wear-resistant rubber layer. Specifically, in the initial state, the electric telescopic rod 35 is in a retracted state, causing the hollow connecting slide bar 36 to be at a high position. Simultaneously, supported by the L-shaped sliding bar 34, the folding plate 33 is horizontally extended, allowing the arc-shaped blocks 31 to be evenly spaced and arranged on the outside of the main pipe 7. At this point, the spray area is at its maximum. When the air cooler heat exchange pressure decreases, the electric telescopic rod 35 is extended, causing the hollow connecting slide bar 36 to move downwards. The L-shaped sliding bar 34 also moves downwards along with it. Since the arc-shaped block 31 in the middle is fixed to the middle of the main pipe 7, the downward movement of the L-shaped sliding bar 34 pulls the arc-shaped block 31 in the middle through the folding plate 33. Together with the two adjacent arc-shaped blocks 31, they move towards the center. As multiple folding plates 33 are pulled, the multiple arc-shaped blocks 31 above the main pipe 7 will converge towards the center. The L-shaped sliding strip 34 and the hollow connecting strip 36 are in a sliding connection. At this time, the change of the folding plate 33 will cause the L-shaped sliding strip 34 to slide towards the center of the hollow connecting strip 36 to adapt to the change of the folding plate 33. The nozzle 8 is fixed above the arc-shaped block 31. The liquid in the main pipe 7 is guided to the nozzle 8 for spraying through the elastic auxiliary pipe 37, thereby converging all the nozzles 8 towards the center for spraying, thus performing local spraying and saving water resources.

[0025] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 8The windproof recovery mechanism 4 includes a collection block 41. The outer side of the collection block 41 is fixedly connected to the bottom of the air cooler 1. A conical collection groove 42 is opened on the inner side of the collection block 41. A recovery pipe 45 is connected to the outer side of the collection block 41. One end of the recovery pipe 45 is connected to the conical collection groove 42. The other end of the recovery pipe 45 is connected to the pipe between the water storage tank 5 and the water pump 6. A valve 46 is fixedly connected to the outer side of the recovery pipe 45. Multiple arc-shaped wind baffles 44 are rotatably connected around the top of the collection block 41. A coil spring 43 is fixedly connected to the bottom end of the arc-shaped wind baffles 44. The end of the coil spring 43 away from the arc-shaped wind deflector 44 is fixedly connected to the collection block 41, and the bottom of the conical collection trough 42 is inclined toward the direction of the recycling pipe 45. Specifically, under the combined action of the multi-mode spraying mechanism 2 and the area adjustment mechanism 3, some atomized droplets may not evaporate in time. At this time, these droplets will fall into the collection block 41 below. Under the collection of the conical collection trough 42, they will be guided through the recovery pipe 45 to the pipe between the water pump 6 and the water storage tank 5. When the liquid in the water storage tank 5 is used up, the valve 46 can be opened to allow the liquid in the conical collection trough 42 to be transported by the water pump 6 again for atomization and cooling operation until the water storage tank 5 is full of liquid. At this time, the valve is closed. 46. ​​The liquid in the water tank 5 can continue to be used for atomized cooling. At the same time, the coil spring 43 in the initial state will cause the arc-shaped wind deflector 44 rotating above the collection block 41 to be on the side perpendicular to the collection block 41. When the outside wind force increases, the wind force blows on the arc-shaped wind deflector 44, causing the arc-shaped wind deflector 44 to rotate. At the same time, the coil spring 43 accumulates elastic potential energy. Finally, under the combined action of multiple arc-shaped wind deflectors 44, a wind-blocking wall is formed on the side that is blown, preventing the water mist from being blown around and reducing the cooling efficiency.

[0026] Example 2: A temperature control method for a spray pre-cooled air cooler includes the following steps: S1. Open the ball valve 12 to allow the tap water in the water storage tank 5 to enter the water supply circuit. Before starting the water pump 6, use the pressure gauge 11 to confirm that the initial pressure of the main pipeline 7 is within the preset safe range. Use the flow meter 10 to calibrate the initial water supply flow rate to ensure that the electric telescopic rod 35 is in the retracted state, the arc-shaped wind baffle 44 is kept vertically extended under the action of the coil spring 43, and the valve 46 is in the closed state. S2. Start water pump 6. Liquid is transported to main pipe 7 through branch pipe 9, and then distributed to each nozzle 8 through flexible auxiliary pipe 37. Liquid impacts the spiral fan blade 23, driving the rotating column 21 and rotating inclined baffle block 27 to rotate synchronously. At the same time, liquid is guided into water inlet cavity 24 through conical baffle block 25, and flows into the inner area of ​​limiting ring 29 from outlet 210. According to the pressure data of pressure gauge 11 and the air inlet temperature requirement of air cooler 1, adjust the operating power of water pump 6. When low-level spray is required, the water pressure pushes the rotating inclined baffle block 27 and does not move it completely upward. At this time, the inclined notch and the spray nozzle 28 are on the same horizontal plane, forming a ring pulse spray. When high-level spray is required, the water pressure increases, causing the rotating inclined baffle block 27 to move completely upward. At this time, all spray nozzles 28 spray synchronously. The flow rate change is monitored in real time by flow meter 10 to ensure that the spray volume matches the heat exchange requirement. S3. Based on the change in heat exchange pressure of air cooler 1, the linkage area adjustment mechanism 3 adjusts the spray range. When the inlet air temperature is ≤40℃, the electric telescopic rod 35 is extended, driving the hollow connecting slide bar 36 to move down. The L-shaped sliding bar 34 slides along the inner groove of the hollow connecting slide bar 36 and is linked with the folding plate 33, pushing all non-central arc blocks 31 to gather towards the fixed central arc block 31. The nozzle 8 sprays synchronously in the center. The flow rate decrease is observed through the flow meter 10 to achieve water-saving local pre-cooling. When the inlet air temperature is >40℃, the electric telescopic rod 35 is controlled to retract, the hollow connecting slide bar 36 moves up, and the folding plate 33 unfolds to make the arc blocks 31 evenly distributed. The nozzle 8 sprays the entire air cooler 1 core. The pressure is maintained by the pressure gauge 11 to ensure the pre-cooling intensity. S4. When the outside wind force increases, the arc-shaped wind deflector 44 rotates around the collection block 41 under the action of the wind force and compresses the coil spring 43. The arc-shaped wind deflectors 44 corresponding to the wind direction fit together to form a wind-blocking structure, which prevents the water mist from being blown away and affecting the pre-cooling efficiency. At the same time, the unevaporated atomized liquid droplets fall into the conical collection groove 42 of the collection block 41. When the flow meter 10 shows that the water supply flow is insufficient or the liquid level of the water tank 5 is too low, the valve 46 is opened and the recovered liquid flows back to the pipeline between the water pump 6 and the water tank 5 through the recovery pipe 45, and re-participates in the spray cycle. The water supply pressure after the return is calibrated by the pressure gauge 11 to maintain a stable pre-cooling effect. S5. When the air inlet temperature of the air cooler 1 is stable at ≤40℃ and has been running for a period of time, reduce the operating power of the water pump 6, close the ball valve 12, and when the flow meter 10 shows zero flow, turn off the water pump 6, control the electric telescopic rod 35 to reset and retract, so that the nozzle 8 returns to the full range distribution state. After the wind force weakens, the arc-shaped wind baffle 44 returns to the vertical state under the action of the spring 43, close the valve 46, and complete the temperature control process.

[0027] Working principle: First, the water pump 6 is started. The cooling liquid stored in the water tank 5 is driven by the water pump 6 and flows into the main pipe 7 through the branch pipe 9, forming a stable fluid transport circuit. The liquid then flows through the internal flow channel of the area regulating mechanism 3 and is evenly distributed to the inlet ports of each nozzle 8. Inside the nozzle 8, the inflowing liquid first impacts the spiral fan blade 23, using fluid kinetic energy to drive the spiral fan blade 23 to rotate at high speed around the axis of the rotating column 21, thereby driving the coaxially fixed rotating inclined blocking block 27 to rotate synchronously. At the same time, under the guidance of the conical water baffle 25, the liquid flows smoothly into the water inlet cavity 24 along the tangential direction of the conical surface, avoiding local turbulence caused by fluid impact and ensuring that the liquid flows out from the outlet 210 in a stable flow state. The outflowing liquid applies an axial thrust to the rotating inclined blocking block 27. When the thrust overcomes the preload of the telescopic spring 26, the rotating inclined blocking block 27 moves upward along the axis of the rotating column 21, allowing the liquid to pass through the inclined plate on the rotating inclined blocking block 27. The oblique concave guides the water to the spray nozzle 28 and atomizes it. Under rotation, it forms a pulse spray effect. By adjusting the output power of the water pump 6, the working pressure of the fluid system can be changed. When the water pressure increases, the upward stroke of the rotating oblique block 27 increases. The bottom of the rotating oblique block 27 is not on the same horizontal plane as the spray nozzle 28. At this time, the droplet size increases and the spray intensity increases. When the water pressure decreases, the elastic force of the telescopic spring 26 pushes the rotating oblique block 27 downward, reducing the connecting area, refining the droplet size, and widening the spray range. This achieves stepless switching of multiple spray modes. The rotating component is directly driven by the fluid pressure. The elastic constraint of the telescopic spring 26 achieves mechanical feedback adjustment. The continuous rotation of the rotating oblique block 27 can form a dynamic cleaning effect on the spray nozzle 28. This not only reduces the deposition of impurities in the liquid at the port, but also, combined with the guiding effect of the conical water block 25 on the fluid, further improves the uniformity of the spray and the long-term stability of the device, effectively reducing the risk of nozzle 8 clogging. Furthermore, through the area adjustment mechanism 3, the electric telescopic rod 35 is in a retracted state, and its output end drives the hollow connecting slide bar 36 to remain in a high position. The L-shaped sliding pull bar 34, which is hinged to the hollow connecting slide bar 36, is in an extended position. Then, through the folding plate 33, the arc-shaped block 31 is pulled along the guide rail and distributed at equal intervals. At this time, the nozzles 8 are dispersed, and the spray coverage area reaches the maximum, which is suitable for the working conditions where the overall heat exchange pressure of the air cooler 1 is high. When the heat exchange pressure in a local area of ​​the air cooler 1 decreases or only a specific area needs to be cooled, the control system triggers the electric telescopic rod 35 to extend, pushing the hollow connecting slide bar 36 along the vertical direction. As it moves downward, the L-shaped sliding bar 34 swings down and pulls the folding plate 33 to fold and retract, causing the arc-shaped block 31 to converge towards the center along the guide rail. The nozzles 8, which are fixed to the arc-shaped block 31, achieve a focused layout in sync, forming a local high-intensity spray area. The linear movement of the electric telescopic rod 35 is converted into the position adjustment of the nozzles 8, ensuring the synchronicity of movement and position accuracy of each nozzle 8. According to the real-time heat exchange pressure distribution of the air cooler 1, the full-area spray and local focused spray modes can be flexibly switched. While ensuring the cooling effect of key areas, the water consumption of unnecessary areas is reduced, and the energy utilization efficiency is improved. Simultaneously, through the windproof recovery mechanism 4, during the atomization cooling process, droplets that are not absorbed by air evaporation fall under gravity. The conical collection trough 42 on the collection block 41 guides the scattered droplets to the collection chamber at the bottom of the trough through the guiding effect of the inclined slope, avoiding water waste. When the liquid level in the water storage tank 5 is lower than the preset threshold, the valve 46 is opened, and the collected liquid flows back through the recovery pipe 45 to the main pipe 7 between the water pump 6 and the water storage tank 5, re-entering the circulating spray system to achieve closed-loop utilization of water resources, meeting energy conservation and environmental protection requirements. When the water storage tank 5 is full, the valve 46 is closed to ensure normal pressure balance of the system. When the external wind increases... The airflow exerts a lateral thrust on the arc-shaped wind deflector 44, causing it to rotate around the hinge axis and compress the coil spring 43. The wind deflection angle is automatically adjusted according to the wind force: the stronger the wind, the greater the deflection angle of the arc-shaped wind deflector 44, resulting in a higher and denser windbreak wall. This effectively blocks the interference of crosswinds on the spray area and prevents the droplet coverage rate of the heat exchange area from decreasing due to water mist deviation. When the wind weakens, the elastic restoring force of the coil spring 43 pushes the arc-shaped wind deflector 44 back to its original position, without affecting the normal spraying effect. Real-time wind field adaptation is achieved through mechanical elastic linkage, ensuring that the droplets can accurately cover the heat exchange surface of the air cooler 1, significantly improving cooling efficiency and environmental adaptability.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray pre-cooling type air cooler, comprising an air cooler (1), a water storage tank (5), and a water pump (6), characterized in that, The air cooler (1) has a main pipe (7) fixedly connected to both sides inside. Multiple nozzles (8) are provided on the outside of the main pipe (7). A multi-mode spraying mechanism (2) is provided inside the nozzle (8). The multi-mode spraying mechanism (2) is used to automatically adjust the spraying mode. An area adjustment mechanism (3) is provided on the outside of the main pipe (7). The area adjustment mechanism (3) is used to adjust the spraying area. A windproof recovery mechanism (4) is provided on the inside of the air cooler (1). The windproof recovery mechanism (4) is used to prevent wind and recover excess water mist. The multi-mode spraying mechanism (2) includes a rotating column (21), the bottom end of which is rotatably connected to the inner side of the nozzle (8), a spiral fan blade (23) is fixedly connected to the top end of the rotating column (21), a retaining strip (22) is fixedly connected to the outer wall of the rotating column (21), a water inlet cavity (24) is opened in the middle of the outer side of the rotating column (21), a conical water baffle (25) is fixedly connected to the inner side of the nozzle (8), and the outer side of the conical water baffle (25) is... A telescopic spring (26) is fixedly connected. A rotating oblique blocking block (27) is sleeved on the outside of the rotating column (21). The rotating oblique blocking block (27) is slidably connected to the outside of the locking strip (22). Multiple water spray nozzles (28) are opened on the outside of the nozzle (8). A limiting ring (29) is fixedly connected to the inside of the nozzle (8). A water outlet (210) is opened on the outside of the rotating column (21). The water outlet (210) is connected to the water inlet cavity (24).

2. The spray pre-cooling air cooler according to claim 1, characterized in that, The regional adjustment mechanism (3) includes multiple arc-shaped blocks (31), which are slidably connected to the outer periphery of the main pipe (7). A limiting strip (32) is fixedly connected to the outer wall of the main pipe (7). The arc-shaped blocks (31) are slidably connected to the outer side of the limiting strip (32). A folding plate (33) is rotatably connected to the outer side of each adjacent arc-shaped block (31). An L-shaped sliding pull strip (34) is rotatably connected to the middle of the folding plate (33). The bottom of the air cooler (1) is fixedly connected to the outer side of the main pipe (7). Two sets of electric telescopic rods (35) are fixedly connected. Hollow connecting slide bars (36) are fixedly connected to the bottom ends of the two sets of electric telescopic rods (35). The L-shaped sliding pull bar (34) is slidably connected to the outside of the hollow connecting slide bar (36) on the side away from the folding plate (33). The nozzle (8) is fixedly connected to the outer wall of the arc block (31). The top of the nozzle (8) is connected to an elastic secondary pipe (37). The elastic secondary pipe (37) is connected to the main pipe (7).

3. The spray pre-cooling air cooler according to claim 1, characterized in that, The windproof recovery mechanism (4) includes a collection block (41), which is fixedly connected to the bottom of the air cooler (1). A conical collection groove (42) is provided on the inner side of the collection block (41), and a recovery pipe (45) is connected to the outer side of the collection block (41). One end of the recovery pipe (45) is connected to the conical collection groove (42), and the other end of the recovery pipe (45) is connected to the pipe between the water storage tank (5) and the water pump (6). A valve (46) is fixedly connected to the outer side of the recovery pipe (45). Multiple arc-shaped wind deflectors (44) are rotatably connected around the top of the collection block (41), and a coil spring (43) is fixedly connected to the bottom end of the arc-shaped wind deflector (44).

4. A spray pre-cooling air cooler according to claim 1, characterized in that, The water storage tank (5) is connected to the water pump (6). The other end of the water pump (6) is connected to two branch pipes (9). The other end of the branch pipes (9) is connected to the right end of the main pipe (7). A flow meter (10) is fixedly connected to the outside of the branch pipes (9). A pressure gauge (11) is fixedly connected to the outside of the main pipe (7). A ball valve (12) is fixedly connected to the outside of the pipe between the water pump (6) and the two branch pipes (9).

5. A spray pre-cooling air cooler according to claim 1, characterized in that, The top of the limiting ring (29) is provided with a ball bearing, which rolls against the rotating inclined blocking block (27) and is evenly distributed along the circumference of the limiting ring (29).

6. A spray pre-cooling air cooler according to claim 1, characterized in that, The outer side of the rotating oblique blocking block (27) is provided with multiple inclined recesses, which are equidistantly arranged around the outer side of the rotating oblique blocking block (27).

7. A spray pre-cooling air cooler according to claim 2, characterized in that, One of the arc-shaped blocks (31) is fixedly connected to the middle of the main pipe (7), and the two ends of the folding plate (33) are respectively hinged to the outer side of the adjacent arc-shaped block (31).

8. A spray pre-cooling air cooler according to claim 2, characterized in that, The inner groove of the hollow connecting slide bar (36) is a T-shaped groove structure, and the end of the L-shaped sliding bar (34) is provided with a limiting slider, and the outer side of the limiting slider is wrapped with a wear-resistant rubber layer.

9. A spray pre-cooling air cooler according to claim 3, characterized in that, The end of the coil spring (43) away from the arc-shaped windbreak (44) is fixedly connected to the collection block (41), and the bottom of the conical collection trough (42) is inclined toward the recycling pipe (45).

10. A temperature control method for a spray pre-cooled air cooler, using a spray pre-cooled air cooler according to any one of claims 1-9, characterized in that, The method includes the following steps: S1. Open the ball valve (12) to allow the tap water in the water storage tank (5) to enter the water supply circuit. Before starting the water pump (6), check the pressure gauge (11) to confirm that the initial pressure of the main pipeline (7) is within the preset safe range. Use the flow meter (10) to calibrate the initial flow rate of the water supply to ensure that the electric telescopic rod (35) is in the retracted state, the arc-shaped wind baffle (44) is kept vertically extended under the action of the coil spring (43), and the valve (46) is in the closed state. S2. Start the water pump (6). The liquid is transported to the main pipe (7) through the branch pipe (9), and then distributed to each nozzle (8) through the flexible auxiliary pipe (37). The liquid impacts the spiral fan blades (23), which drive the rotating column (21) and the rotating inclined blocking block (27) to rotate synchronously. At the same time, the liquid is guided into the water inlet cavity (24) through the conical water baffle (25), and flows into the inner area of ​​the limiting ring (29) from the outlet (210). According to the pressure data of the pressure gauge (11) and the air intake of the air cooler (1), the liquid is transported to the main pipe (7) through the branch pipe (9), and then distributed to each nozzle (8) through the flexible auxiliary pipe (37). Temperature requirements are adjusted by adjusting the operating power of the water pump (6). When a low level of spraying is required, the water pressure pushes the rotating inclined block (27) up without completely moving it upward. At this time, the inclined notch and the spray nozzle (28) are on the same horizontal plane, forming a ring-shaped pulse spray. When a high level of spraying is required, the water pressure increases, causing the rotating inclined block (27) to move up completely. At this time, all spray nozzles (28) spray synchronously. The flow rate changes are monitored in real time by the flow meter (10) to ensure that the spray volume matches the heat exchange requirements. S3. According to the change of heat exchange pressure of air cooler (1), the linkage area adjustment mechanism (3) adjusts the spray range. When the air inlet temperature is ≤40℃, the electric telescopic rod (35) is started to extend, driving the hollow connecting slide (36) to move down. The L-shaped sliding strip (34) slides along the inner groove of the hollow connecting slide (36) and links the folding plate (33) to push all non-central arc blocks (31) to gather towards the fixed central arc block (31). The nozzle (8) sprays synchronously in the center. The flow rate decrease is observed through the flow meter (10) to achieve water-saving local pre-cooling. When the air inlet temperature is >40℃, the electric telescopic rod (35) is controlled to retract, the hollow connecting slide (36) moves up, and the folding plate (33) unfolds to make the arc blocks (31) evenly distributed. The nozzle (8) sprays the air cooler (1) core in full range. The pressure is maintained by the pressure gauge (11) to ensure the pre-cooling intensity. S4. When the external wind force increases, the arc-shaped wind deflector (44) rotates around the collection block (41) under the action of the wind force and compresses the coil spring (43). The arc-shaped wind deflectors (44) corresponding to the wind direction fit together to form a wind-blocking structure, which prevents the water mist from being blown away and affecting the pre-cooling efficiency. At the same time, the unevaporated atomized liquid droplets fall into the conical collection groove (42) of the collection block (41). When the flow meter (10) shows that the water supply flow is insufficient or the water level in the storage tank (5) is too low, the valve (46) is opened. The recovered liquid flows back to the pipeline between the water pump (6) and the storage tank (5) through the recovery pipe (45) and re-participates in the spray cycle. The water supply pressure after the return is calibrated by the pressure gauge (11) to maintain a stable pre-cooling effect. S5. When the air inlet temperature of the air cooler (1) is stable at ≤40℃ and has been running for a period of time, reduce the operating power of the water pump (6), close the ball valve (12), and when the flow meter (10) shows zero flow, turn off the water pump (6), control the electric telescopic rod (35) to reset and retract, so that the nozzle (8) returns to the full range distribution state. After the wind force weakens, the arc-shaped wind baffle (44) is reset to the vertical state under the action of the spring (43), and the valve (46) is closed to complete the temperature control process.

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