Tube box type evaporative cooler

Abstract

The invention relates to the field of evaporative coolers, and provides a tube box type evaporative cooler which comprises a box body, a heat exchange cavity is formed in the interior of the box body, the bottom end of the interior of the heat exchange cavity is fixedly connected with a discharging barrel used for discharging redundant cooling water and steam, the top side of the discharging barrel is fixedly connected with a cooling tube, and the top side of the cooling tube is fixedly connected with a heat exchanger. The cooling device comprises a plurality of cooling pipes, the input ends of the plurality of cooling pipes are communicated, the output ends of the plurality of cooling pipes are communicated, the outer walls of the cooling pipes are provided with annular grooves and cooling fins used for heat dissipation, and the cooling pipes are spirally arranged along with the cooling pipes. Air pressure expansion caused by the fact that air flow is hindered during air inlet can be fully used as power, relevant performance optimization and resource utilization of the cooler are carried out, under the condition that normal cooling work is not hindered, the air inlet flow of cooling air and the spraying flow of cooling water of the cooler are optimized, and the cooling efficiency of the cooler is improved. Therefore, the overall performance and the operation economy of the equipment are improved.

Description

Technical Field

[0001] The invention relates to the field of evaporative coolers, in particular to a tube-box type evaporative cooler. Background Art

[0002] The evaporative cooler is a combined heat exchanger of a cooler and a cooling tower that uses water as the cooling medium. It effectively absorbs heat by evaporating water, thereby reducing the indoor temperature. The box-and-tube evaporative condenser is a common evaporative condenser with good condensation and cooling effects.

[0003] Existing box-and-tube evaporative coolers have limited cooling efficiency, are prone to dust accumulation, and are difficult to clean. They can also lead to excessive cooling water use or insufficient evaporation, which not only wastes water resources but also causes excessive humidity around the equipment, affecting the long-term operation of the equipment and the comfort of the surrounding environment. Therefore, a box-and-tube evaporative cooler is needed. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a tube-box evaporative cooler, which solves the problems of limited cooling efficiency, easy dust accumulation and inconvenient cleaning of the existing tube-box evaporative coolers, as well as excessive use of cooling water or insufficient evaporation, which not only wastes water resources but also causes the ambient humidity around the equipment to be too high, affecting the long-term operation of the equipment and the comfort of the surrounding environment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A tube-box type evaporative cooler, comprising: A box body, the interior of the box body, the interior of the box body begins to have a heat exchange chamber, the bottom end of the heat exchange chamber is fixedly connected to a discharge tube for discharging excess cooling water and steam, the top side of the discharge tube is fixedly connected to a cooling pipe, the number of the cooling pipes is multiple, the input ends of the multiple cooling pipes are connected, the output ends of the multiple cooling pipes are connected, the outer wall of the cooling pipe is provided with annular grooves and heat dissipation fins for heat dissipation, and is arranged in a spiral posture following the cooling pipe; The air inlet box has a plurality of air inlet boxes, one side of the air inlet box is slidably connected to a dust blocking net by a spring, the other side of the air inlet box is fixedly connected to the middle end of the outer wall of the box body, and the dust blocking net is cleaned by a cleaning component driven by the steam discharged from the discharge cylinder, and the interior of the air inlet box is divided into a trigger chamber, an air inlet chamber and a power chamber from top to bottom, a trigger assembly is provided inside the trigger chamber, one side of the trigger assembly is used to trigger the dust blocking net to move, and the other side of the trigger assembly is provided with a lifting assembly, and the bottom side of the trigger assembly is installed with a fan blade serving as a power source for the trigger assembly; A valve body, wherein the valve body is provided with two output ends, the input end of the valve body is connected to a water supply assembly via a water pipe, the two output ends of the valve body are provided with a spray assembly, a switching valve core is slidably connected to the interior of the valve body, and the switching valve core is raised and lowered by a lifting assembly to switch the connection between the input end of the switching valve core and any one of the two output ends of the switching valve core; A gear ring is rotatably connected to the bottom end of the outer wall of the box body, the gear ring is connected to a rod body through a gear 1 meshing therewith, the bottom end of the rod body is connected to the water supply assembly, the top end of the rod body is provided with an airflow assembly, the airflow assembly is connected to the expansion airbag, the inner periphery of the gear ring is connected to a power shaft through a gear 2 meshing therewith, the top side of the power shaft passes through the interior of the air inlet box, and is fixedly connected to the bottom side of the fan blade.

[0006] Preferably, the trigger assembly includes an expansion airbag arranged inside the trigger cavity, a plurality of trigger rods are provided on one side of the expansion airbag, one side of the trigger rod is fixedly connected to the dust shield, and the other side of the trigger rod is in conflict with the expansion airbag, the bottom side input end of the expansion airbag is connected to the output end of the fan blade, and the fan blade is located inside the air inlet cavity.

[0007] Preferably, the cleaning assembly includes a cleaning brush located on the side of the dust guard net close to the expansion airbag and a reciprocating screw rotatably connected to the inside of the power chamber. The bottom end of the cleaning brush is sleeved on the outer wall of the reciprocating screw, and the end of the reciprocating screw close to the input end of the power chamber is connected to a power turbine through two mutually meshing bevel gears.

[0008] Preferably, the power chamber input end is connected to the discharge tube through a pipeline to receive the steam discharged from the discharge tube.

[0009] Preferably, the lifting assembly includes a swivel seat fixedly connected to the other side of the inflatable airbag and a slide slidably connected to the inner wall of the trigger chamber through a spring telescopic rod. The swivel seat and the slide are connected by a connecting rod. The top sides of multiple slides are fixedly connected to a frame, and the bottom side of the switching valve core is fixedly connected to the top side of the frame.

[0010] Preferably, one end of the connecting rod is rotatably connected to the swivel seat, and the other end of the connecting rod is rotatably connected to the sliding member.

[0011] Preferably, the water supply assembly includes a pump casing, the interior of the pump casing is rotatably connected to a delivery turbine, the input end of the pump casing is fixedly connected to an external water supply pipe, the output end of the pump casing is fixedly connected to the water pipe, a motor is installed on the bottom side of the delivery turbine, the bottom side of the rod body is fixedly connected to the delivery turbine, and the pump casing and the motor are both mounted on the outer wall of the box body through a fixing bracket.

[0012] Preferably, the spray assembly includes a frame fixedly connected to the top end of the inner part of the box body, the outer periphery of the frame is fixedly connected to the inner periphery of the frame, the inner periphery of the frame is fixedly connected to the outer periphery of the frame, the input ends of the inner periphery and the outer periphery are respectively fixedly connected to the two output ends of the valve body, and the bottom sides of the inner periphery and the outer periphery are fixedly connected to multiple spray heads, and the multiple spray heads are equidistantly surrounded by the outer periphery and inner periphery of the multiple cooling tubes, and the output ends are all facing the cooling tubes.

[0013] Preferably, the airflow component includes a Laval nozzle fixedly connected to the center of the top end of the box body, the output end of the Laval nozzle is located inside the box body and at the center of a plurality of cooling pipes arranged around it, the outer wall of the output end of the Laval nozzle is fixedly connected to an air outlet pipe, the outer wall of the input end of the Laval nozzle is fixedly connected to a connecting tube, the inner wall of the connecting tube is rotatably connected to a switching shaft, the top side of the switching shaft and the top side of the rod body are fixedly connected to synchronous wheels, the two synchronous wheels are connected by the inner side of a synchronous belt, the outer wall of the connecting tube is fixedly connected to a plurality of air pipes, the bottom side of the air pipe is connected to the expansion airbag, the interior of the switching shaft is provided with an airflow channel, and the number of the airflow channels is half the number of the air pipes.

[0014] Preferably, a discharge port is provided on the bottom side of the discharge cylinder, and a float valve is provided at the input end of the discharge port.

[0015] Working principle: The medium to be cooled enters the cooling pipe through the cooling pipe inlet for heat exchange. During the heat exchange process, the heat is absorbed by the cooling pipe, causing the medium to cool down and be discharged from the cooling pipe outlet. During this period, the heat is dispersed to the heat dissipation fins and annular grooves on the surface of the cooling pipe, allowing it to quickly exchange heat with the outside world through the increased contact area with the outside world. During the heat exchange period, the following process is carried out to accelerate heat dissipation: When the driving source is started, the motor drives the delivery turbine inside the pump housing to rotate, causing the delivery turbine to drive the rod body on the top side to rotate together, so that the bottom end of the rod body rotates through the gear ring meshing with the gear 1, and the gear ring synchronously meshes with the gear 2 connected to the power shaft on the inner periphery to rotate together, and the top end of the rod body rotates through two synchronous wheels driven by synchronous belts to drive the switching shaft; Cooling water spraying: The driven delivery turbine transports the cooling water from the external pipe to the inside of the pump casing to the inside of the water pipe, and then transports the cooling water to the valve body through the water pipe. The valve body transports the cooling water to either the inner pipe or the outer pipe through one of the open output ports. The cooling water is sprayed by the spray head on its bottom side, spraying the cooling water onto the surface of the cooling pipe to perform heat absorption and evaporative cooling. Excess cooling water flows along the heat dissipation fins of the curved guide surface and directly falls into the bottom of the discharge tube for storage until it reaches the condition that causes the float valve to float, and is then discharged through the discharge port on the bottom of the discharge tube; Increase the air flow rate. The driven power shaft drives the fan blades to rotate, creating negative pressure at the location of the fan blades, allowing the air to pass through the dust screen and be guided by the fan blades into the expansion airbag. The air then enters the air pipe through the expansion airbag, passes through the open switching shaft through the air pipe, and enters the air outlet through the Laval nozzle connected to the switching shaft. The air is accelerated by the characteristics of the Laval nozzle and enters the box from the output port on the bottom side of the air outlet. After the cooling water sprayed on the surface of the cooling pipe absorbs a large amount of heat and evaporates, the evaporation rate of the internal cooling water is accelerated by increasing the air flow rate inside the box, thereby accelerating its heat absorption rate. The air inside the box is replaced by increasing the air flow rate, reducing the occurrence of water vapor liquefaction and heat release. After evaporation, the water will expand its volume, increasing the air pressure inside the box. Combined with the flowing air, the high-pressure water vapor generated by the air will flow into the power chamber on the bottom side of the air inlet box along the output port of the exhaust tube, causing the gas to impact the power turbine, which in turn drives the reciprocating screw through two mutually meshing bevel gears. The reciprocating screw rotates, causing the cleaning brush it drives to move back and forth in a reciprocating cycle, causing the cleaning brush to brush the inside of the dust screen and use the bristles to push the dust out of the mesh. When the rotating switching shaft connects the air flow channel with the input end on the connecting cylinder, the air flow in the connected air pipes follows the connecting cylinder into the Laval nozzle. The air in the unconnected air pipes increases the air pressure and expands under the infusion of air inside the expansion airbag connected to the air pipe. When it expands, it touches the trigger rod, causing the dust shield connected to the trigger rod to move, and compresses the spring, so that the dust on the dust shield is shaken off by the impact, and further cleaning is completed with the help of the cleaning brush. The expanded expansion airbag will also drive the rotating seat connected to it to move, so that the rotating seat applies force to the connecting rod connected to it, pushing the slider. The cam is then re-engaged in closing the valve stem and the cam is re-engaged in closing the valve stem, which in turn causes the cam to re-engage with the cam, thereby causing the cam to re-engage with the cam and causing the cam to re-engage with the cam.

[0016] The present invention provides a tube-box type evaporative cooler having the following beneficial effects: 1. The present invention can fully utilize the air pressure expansion caused by the obstruction of air flow during air intake as a driving force to optimize the performance of the cooler and utilize its own resources. Without hindering normal cooling work, it optimizes the cooling air intake process and cooling water spraying process of the cooler, thereby improving the overall performance and operating economy of the equipment.

[0017] 2. The present invention can reuse the high-pressure water vapor generated by cooling, so that the cooler does not need to be frequently disassembled and cleaned manually in this automatic cleaning mode, reducing equipment maintenance time and labor costs, improving the continuity and reliability of the equipment's self-maintenance operation, and effectively solving the problem of traditional evaporative coolers being prone to dust accumulation and inconvenient to clean, thereby extending the service life of the equipment.

[0018] 3. The present invention can spray cooling water on the inner and outer peripheries of the cooling pipe to avoid excessive cooling water expenses caused by excessive water consumption, thereby reducing water resource consumption, maintaining normal cooling work, optimizing resource utilization, improving water resource utilization efficiency, and avoiding resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 Schematic diagram of the internal structure of the box of the present invention; Figure 3 It is a structural schematic diagram of the framework of the present invention; Figure 4 It is a structural schematic diagram of the cooling pipe of the present invention; Figure 5 It is a structural schematic diagram of the connecting tube of the present invention; Figure 6 Schematic diagram of the internal structure of the air inlet box of the present invention; Figure 7 A schematic diagram of the connection mechanism of the trigger lever of the present invention; Figure 8 A schematic diagram of the position of the cleaning brush of the present invention; Figure 9 This is a schematic diagram of the connection structure of the power turbine of the present invention; Figure 10 Schematic diagram of the connecting structure of the connecting rod of the present invention; Figure 11 It is a structural schematic diagram of the valve body of the present invention; Figure 12 It is a structural schematic diagram of the switching valve core of the present invention; Figure 13 Schematic diagram of the connection structure of the gear ring of the present invention; Figure 14 It is a structural schematic diagram of the pump casing of the present invention; Figure 15 It is a schematic diagram of the position of the float valve of the present invention.

[0020] Among them, 1. Box body; 2. Air inlet box; 3. Cooling pipe; 4. Frame; 5. Air outlet tube; 6. Inner tube; 7. Outer tube; 8. Discharge tube; 9. Laval nozzle; 10. Connecting tube; 11. Switching shaft; 12. Air pipe; 13. Inflatable airbag; 14. Dust screen; 15. Fan blade; 16. Trigger rod; 17. Cleaning brush; 18. Reciprocating screw; 19. Power turbine; 20. Rotating seat; 21. Connecting rod; 22. Sliding part; 23. Valve body; 24. Switching valve core; 25. Frame; 26. Water pipe; 27. Gear ring; 28. Power shaft; 29. ​​External tube; 30. Motor; 31. Pump casing; 32. Delivery turbine; 33. Rod body; 34. Synchronous wheel; 35. Float valve; 36. Spring. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example: An embodiment of the present invention provides a box-tube evaporative cooler, comprising: Please see the attached Figure 1 and attached Figure 2 , box body 1, inside the box body 1, there is a heat exchange chamber inside the box body 1, the bottom end of the heat exchange chamber is fixedly connected to a discharge tube 8 for discharging excess cooling water and steam, the top side of the discharge tube 8 is fixedly connected to a cooling pipe 3, the number of cooling pipes 3 is multiple, the input ends of the multiple cooling pipes 3 are connected, the output ends of the multiple cooling pipes 3 are connected, the outer wall of the cooling pipe 3 is provided with annular grooves and heat dissipation fins for heat dissipation, and are arranged in a spiral posture following the cooling pipe 3; Specifically, the medium that needs to be cooled enters the interior of the cooling tube 3 along the input port of the cooling tube 3 for heat exchange. During the heat exchange process, the heat is absorbed by the cooling tube 3, causing the medium to cool down and be discharged from the output port of the cooling tube 3. During this period, the heat is dispersed to the heat dissipation fins and annular grooves on the surface of the cooling tube 3, allowing it to quickly exchange heat with the outside world through the increased contact area with the outside world. During the heat exchange period, the following process is carried out to accelerate heat dissipation.

[0023] Please see the attached Figure 1 , Attachment Figure 6 and attached Figure 7The dust-blocking net 14 is slidably connected to the air inlet box 2 on one side by a spring 36, and the other side of the air inlet box 2 is fixedly connected to the middle end of the outer wall of the box body 1. The dust-blocking net 14 is driven by the cleaning component discharged by the steam from the discharge tube 8 to clean the dust. The interior of the air inlet box 2 is divided into a trigger chamber, an air inlet chamber and a power chamber from top to bottom. A trigger assembly is provided inside the trigger chamber, one side of the trigger assembly is used to trigger the dust-blocking net 14 to move, and a lifting assembly is provided on the other side of the trigger assembly. A fan blade 15 serving as a power source for the trigger assembly is installed on the bottom side of the trigger assembly. The trigger assembly includes an expansion air bag 13 arranged inside the trigger chamber, and a plurality of trigger rods 16 are provided on one side of the expansion air bag 13. One side of the trigger rod 16 is fixedly connected to the dust-blocking net 14, and the other side of the trigger rod 16 conflicts with the expansion air bag 13. The bottom input end of the expansion air bag 13 is connected to the output end of the fan blade 15, and the fan blade 15 is located inside the air inlet chamber; Specifically, the air in the unconnected air pipe 12 increases its pressure and expands under the infusion of air inside the expansion airbag 13 connected to the air pipe 12. When the air expands, it touches the trigger rod 16, causing the dust shield 14 connected to the trigger rod 16 to move and compress the spring 36, so that the dust on the dust shield 14 is shaken off by the impact, and further cleaning is completed with the help of the cleaning brush 17. When the air pressure of the flowing air decreases, it is less than the external air pressure, causing it to shrink.

[0024] Please see the attached Figure 10 -Attached Figure 12 , valve body 23, the valve body 23 is provided with two output ends, the input end of the valve body 23 is connected to the water supply component through the water pipe 26, the two output ends of the valve body 23 are provided with a spraying component, the interior of the valve body 23 is slidably connected to the switching valve core 24, the switching valve core 24 is lifted and lowered by the lifting component, and the input end of the switching valve body 23 is connected to any one of the output ends of the two switching valve cores 24; Please see the attached Figure 13 and attached Figure 14, the gear ring 27 is rotatably connected to the bottom end of the outer wall of the box body 1, the gear ring 27 is connected to the rod body 33 through the gear 1 meshing therewith, the bottom end of the rod body 33 is connected to the water supply assembly, and the top of the rod body 33 is provided with an airflow assembly, and the airflow assembly is connected to the expansion airbag 13, the inner periphery of the gear ring 27 is connected to the power shaft 28 through the gear 2 meshing therewith, the top side of the power shaft 28 passes through the interior of the air inlet box 2, and is fixedly connected to the bottom side of the fan blade 15, the water supply assembly includes a pump casing 31, the interior of the pump casing 31 is rotatably connected to the delivery turbine 32, the input end of the pump casing 31 is fixedly connected to the external water supply pipe 29, the output end of the pump casing 31 is fixedly connected to the water supply pipe 26, the bottom side of the delivery turbine 32 is installed with a motor 30, the bottom side of the rod body 33 is fixedly connected to the delivery turbine 32, and the pump casing 31 and the motor 30 are both mounted on the outer wall of the box body 1 through a fixed bracket; Specifically, the motor 30 drives the delivery turbine 32 inside the pump housing 31 to rotate, causing the delivery turbine 32 to drive the rod body 33 on the top side to rotate together. The bottom end of the rod body 33 rotates through the gear ring 27 meshing with the gear 1. The gear ring 27 synchronously meshes with the gear 2 connected to the power shaft 28 on the inner periphery, and rotates together. The top end of the rod body 33 rotates through two synchronous wheels 34 driven by synchronous belts to drive the switching shaft 11.

[0025] Please see the attached Figure 8 and attached Figure 9 The cleaning assembly includes a cleaning brush 17 located on the side of the dust-blocking net 14 close to the expansion airbag 13 and a reciprocating screw 18 rotatably connected to the inside of the power chamber. The bottom end of the cleaning brush 17 is sleeved on the outer wall of the reciprocating screw 18. The cleaning brush 17 slides in the slide groove opened on the power chamber to prevent the cleaning brush 17 from rotating when it is driven, so as to stably perform the displacement under the drive. The end of the reciprocating screw 18 close to the input end of the power chamber is connected to a power turbine 19 through two mutually meshing bevel gears. The input end of the power chamber is connected to the discharge tube 8 through a pipeline to receive the steam discharged from the discharge tube 8. Specifically, after evaporation, the water will expand its own volume, increasing the air pressure inside the box 1. In conjunction with the flowing air, the high-pressure water vapor generated by the air will flow along the output port of the discharge tube 8 into the power chamber on the bottom side of the air inlet box 2, causing the gas to impact the power turbine 19, and the power turbine 19 will drive the reciprocating screw 18 through two mutually meshing bevel gears, causing the reciprocating screw 18 to rotate, thereby reciprocating the cleaning brush 17 it drives to move back and forth, causing the cleaning brush 17 to brush the inside of the dust-blocking net 14, and use the bristles to push the dust out of the mesh.

[0026] Please see the attached Figure 6 and attached Figure 10The lifting assembly includes a swivel seat 20 fixedly connected to the other side of the inflatable airbag 13 and a slide 22 slidably connected to the inner wall of the trigger chamber through a spring telescopic rod. The swivel seat 20 and the slide 22 are connected by a connecting rod 21. The top sides of the multiple slides 22 are fixedly connected to a frame 25. The bottom side of the switching valve core 24 is fixedly connected to the top side of the frame 25. One end of the connecting rod 21 is rotatably connected to the swivel seat 20, and the other end of the connecting rod 21 is rotatably connected to the slide 22. Specifically, the inflated inflation airbag 13 will also drive the swivel seat 20 connected to it to displace, thereby causing the swivel seat 20 to apply force to the connecting rod 21 connected to it, generating a pushing force on the slide 22, thereby lifting the frame 25 connected to the slide 22, and causing the switching valve core 24 connected to it to displace together, so that the flow path inside the valve body 23 changes, from the original flow path connecting the inner peripheral pipe 6 to the flow path of the outer peripheral pipe 7, so that the cooling water changes the spraying direction.

[0027] Please see the attached Figure 3 and attached Figure 11 The spray assembly includes a frame 4 fixedly connected to the top of the inner portion of the box body 1, an inner peripheral tube 6 fixedly connected to the outer periphery of the frame 4, an outer peripheral tube 7 fixedly connected to the inner periphery of the frame 4, the input ends of the inner peripheral tube 6 and the outer peripheral tube 7 are respectively fixedly connected to the two output ends of the valve body 23, and a plurality of spray heads are fixedly connected to the bottom sides of the inner peripheral tube 6 and the outer peripheral tube 7. The plurality of spray heads are equidistantly surrounding the outer periphery and inner periphery of the plurality of cooling tubes 3, and the output ends are all directed towards the cooling tubes 3; Specifically, the driven delivery turbine 32 delivers the cooling water delivered to the pump casing 31 by the external pipe 29 to the inside of the water pipe 26, and delivers the cooling water to the valve body 23 through the water pipe 26. The valve body 23 delivers the cooling water to any one of the inner tube 6 and the outer tube 7 through one of the open output ports. The cooling water is sprayed by the spray head on its bottom side, and the cooling water is sprayed onto the surface of the cooling tube 3 to perform heat absorption and evaporative cooling. The excess cooling water flows along the heat dissipation fins of the curved guide surface and directly falls into the bottom side of the discharge tube 8 for storage until the condition for the float valve 35 to float is reached, and then it is discharged along the discharge port on the bottom side of the discharge tube 8.

[0028] Please see the attached Figure 4 , Attachment Figure 5 and attached Figure 11The airflow component includes a Laval nozzle 9 fixedly connected to the top center of the box body 1. The output end of the Laval nozzle 9 is located inside the box body 1 and at the center of multiple cooling pipes 3 arranged around it. The outer wall of the output end of the Laval nozzle 9 is fixedly connected to the air outlet 5. The outer wall of the input end of the Laval nozzle 9 is fixedly connected to the connecting cylinder 10. The inner wall of the connecting cylinder 10 is rotatably connected to the switching shaft 11. The top side of the switching shaft 11 and the top side of the rod body 33 are both fixedly connected to the synchronous wheel 34. The two synchronous wheels 34 are connected by the inner side of the synchronous belt. The outer wall of the connecting cylinder 10 is fixedly connected to multiple air pipes 12. The bottom side of the air pipe 12 is connected to the expansion airbag 13. An airflow channel is opened inside the switching shaft 11, and the number of airflow channels is half the number of the air pipes 12. Specifically, the driven power shaft 28 drives the fan blades 15 to rotate, so that negative pressure is generated at the position of the fan blades 15, so that the air passes through the dust screen 14 and is guided by the fan blades 15 into the interior of the expansion airbag 13, and enters the air supply pipe 12 through the expansion airbag 13, passes through the open switching shaft 11 through the air supply pipe 12, and enters the air outlet 5 through the Laval nozzle 9 connected to the switching shaft 11. The air is accelerated by the characteristics of the Laval nozzle 9 and enters the box 1 from the output port on the bottom side of the air outlet 5. After the cooling water sprayed on the surface of the cooling pipe 3 absorbs a large amount of heat and evaporates, the evaporation rate of the internal cooling water is accelerated by increasing the air flow rate inside the box 1, thereby accelerating its heat absorption rate, and replacing the box 1 by increasing the air flow rate. The internal air reduces the occurrence of heat release of water vapor liquefaction. When the rotating switching shaft 11 connects the air flow channel with the input end on the connecting tube 10, the air flow in the connected air pipe 12 follows the connecting tube 10 into the Laval nozzle 9. When the rotating switching shaft 11 switches the connected air pipe 12 with the closed air pipe 12, the structure connected to the closed air pipe 12 repeats the above steps. The open air pipe 12 causes the air in the expansion airbag 13 connected thereto to flow again, and the expansion airbag 13 shrinks, thereby causing the spring 36 to drive the ash screen 14 to reset, and the rotating seat 20 pulls the connected structure including the connecting rod 21 and the frame 25 to reset, so that one of the two groups of air pipes 12 performs normal air supply work and the other group performs triggering work. Please see the attached Figure 15 A discharge port is provided on the bottom side of the discharge tube 8, and a float valve 35 is provided at the input end of the discharge port to prevent steam from being discharged from the discharge port for liquid discharge. Excess cooling water flows along the heat dissipating fins of the curved guide surface and directly falls into the bottom side of the discharge tube 8 for storage until the condition for the float valve 35 to float is reached, and then it is discharged along the discharge port on the bottom side of the discharge tube 8.

[0029] While embodiments of the present invention have been shown and described, it will be appreciated 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 invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A tube box type evaporative cooler, characterized in that: include: A box body (1), the inside of the box body (1), the inside of the box body (1) begins to have a heat exchange chamber, the bottom end of the inside of the heat exchange chamber is fixedly connected to a discharge tube (8) for discharging excess cooling water and steam, the top side of the discharge tube (8) is fixedly connected to a cooling pipe (3), the number of the cooling pipes (3) is multiple, the input ends of the multiple cooling pipes (3) are connected, the output ends of the multiple cooling pipes (3) are connected, the outer wall of the cooling pipe (3) is provided with an annular groove and a heat dissipation fin for heat dissipation, and is arranged in a spiral posture following the cooling pipe (3); An air inlet box (2), wherein the number of the air inlet boxes (2) is plural, one side of the air inlet box (2) is slidably connected to a dust blocking net (14) via a spring (36), the other side of the air inlet box (2) is fixedly connected to the middle end of the outer wall of the box body (1), the dust blocking net (14) is cleaned by a cleaning component driven by steam discharged from the discharge cylinder (8), the interior of the air inlet box (2) is divided into a trigger chamber, an air inlet chamber and a power chamber from top to bottom, a trigger component is provided inside the trigger chamber, one side of the trigger component is used to trigger the dust blocking net (14) to move, the other side of the trigger component is provided with a lifting component, and the bottom side of the trigger component is provided with a fan blade (15) serving as a power source for the trigger component; A valve body (23), wherein the valve body (23) is provided with two output ends, the input end of the valve body (23) is connected to a water supply assembly via a water pipe (26), the two output ends of the valve body (23) are provided with a spray assembly, the interior of the valve body (23) is slidably connected to a switching valve core (24), and the switching valve core (24) is lifted and lowered by a lifting assembly to switch the communication between the input end of the switching valve core (24) and any one of the two output ends of the switching valve core (24); A gear ring (27) is rotatably connected to the bottom end of the outer wall of the box body (1). The gear ring (27) is connected to a rod body (33) through a gear 1 meshing therewith. The bottom end of the rod body (33) is connected to a water supply component. The top end of the rod body (33) is provided with an airflow component, and the airflow component is connected to the expansion airbag (13). The inner periphery of the gear ring (27) is connected to a power shaft (28) through a gear 2 meshing therewith. The top side of the power shaft (28) passes through the interior of the air inlet box (2) and is fixedly connected to the bottom side of the fan blade (15).

2. The tube-box evaporative cooler according to claim 1, characterized in that: The trigger assembly includes an expansion airbag (13) arranged inside a trigger chamber, a plurality of trigger rods (16) are provided on one side of the expansion airbag (13), one side of the trigger rod (16) is fixedly connected to the dust shield (14), and the other side of the trigger rod (16) is in contact with the expansion airbag (13), and the bottom side input end of the expansion airbag (13) is connected to the output end of the fan blade (15), and the fan blade (15) is located inside the air inlet chamber.

3. The tube-box type evaporative cooler according to claim 1, characterized in that: The cleaning assembly includes a cleaning brush (17) located on the side of the dust-blocking net (14) close to the expansion airbag (13) and a reciprocating screw (18) rotatably connected to the inside of the power chamber, the bottom end of the cleaning brush (17) is sleeved on the outer wall of the reciprocating screw (18), and the end of the reciprocating screw (18) close to the input end of the power chamber is connected to a power turbine (19) through two mutually meshing bevel gears.

4. The tube-box type evaporative cooler according to claim 1, characterized in that: The power chamber input end is connected to the discharge cylinder (8) through a pipeline to receive steam discharged from the discharge cylinder (8).

5. The tube-box type evaporative cooler according to claim 3, characterized in that: The lifting assembly includes a rotating seat (20) fixedly connected to the other side of the expansion airbag (13) and a slide (22) slidably connected to the inner wall of the trigger chamber through a spring telescopic rod. The rotating seat (20) and the slide (22) are connected by a connecting rod (21). The top sides of multiple slides (22) are fixedly connected to a frame (25), and the bottom side of the switching valve core (24) is fixedly connected to the top side of the frame (25).

6. The tube-box type evaporative cooler according to claim 5, characterized in that: One end of the connecting rod (21) is rotatably connected to the rotating seat (20), and the other end of the connecting rod (21) is rotatably connected to the sliding member (22).

7. The tube-box type evaporative cooler according to claim 1, characterized in that: The water supply assembly comprises a pump housing (31), the interior of the pump housing (31) is rotatably connected to a delivery turbine (32), the input end of the pump housing (31) is fixedly connected to an external water supply pipe (29), the output end of the pump housing (31) is fixedly connected to a water delivery pipe (26), a motor (30) is mounted on the bottom side of the delivery turbine (32), the bottom side of the rod body (33) is fixedly connected to the delivery turbine (32), and the pump housing (31) and the motor (30) are both mounted on the outer wall of the housing (1) via a fixing frame.

8. The tube-box type evaporative cooler according to claim 1, characterized in that: The spray assembly comprises a frame (4) fixedly connected to the top end of the interior of the box (1), an inner peripheral tube (6) fixedly connected to the outer periphery of the frame (4), an outer peripheral tube (7) fixedly connected to the inner periphery of the frame (4), the input ends of the inner peripheral tube (6) and the outer peripheral tube (7) fixedly connected to the two output ends of the valve body (23), the bottom sides of the inner peripheral tube (6) and the outer peripheral tube (7) fixedly connected to a plurality of spray heads, the plurality of spray heads are equidistantly surrounded by the outer periphery and the inner periphery of the plurality of cooling tubes (3), and the output ends are all directed towards the cooling tubes (3).

9. The tube-box type evaporative cooler according to claim 1, characterized in that: The airflow assembly includes a Laval nozzle (9) fixedly connected to the center of the top end of the box (1), the output end of the Laval nozzle (9) is located inside the box (1) and at the center of a plurality of cooling pipes (3) arranged around it, the outer wall of the output end of the Laval nozzle (9) is fixedly connected to an air outlet tube (5), the outer wall of the input end of the Laval nozzle (9) is fixedly connected to a connecting tube (10), the inner wall of the connecting tube (10) is rotatably connected to a switching shaft (11), the top side of the switching shaft (11) and the top side of the rod body (33) are both fixedly connected to a synchronous wheel (34), the two synchronous wheels (34) are connected to each other through the inner side of a synchronous belt, the outer wall of the connecting tube (10) is fixedly connected to a plurality of air pipes (12), the bottom side of the air pipes (12) is connected to the expansion airbag (13), the interior of the switching shaft (11) is provided with an airflow channel, and the number of the airflow channels is half the number of the air pipes (12).

10. The tube-box type evaporative cooler according to claim 1, characterized in that: A discharge port is provided on the bottom side of the discharge cylinder (8), and a float valve (35) is provided at the input end of the discharge port.

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