A cold air circulating device for a refrigeration fan

Abstract

The application relates to the technical field of air coolers, in particular to a cold air circulating device for a refrigeration air cooler, which comprises a circulating air feeder and a water curtain self-cleaning device installed at the air inlet end of the circulating air feeder, a spraying device is internally installed in the circulating air feeder, the output end of the spraying device is connected with the water curtain self-cleaning device, the water curtain self-cleaning device comprises a filtering air guide rail, a water guide rail is internally installed in the filtering air guide rail, a circulating filtering water tank is arranged at the side of the water guide rail, a folding and unfolding device is installed above the circulating filtering water tank and the water guide rail, a plurality of water curtains are internally installed in the folding and unfolding device, a lifting and moving device is further installed on the circulating filtering water tank, a synchronous driving device is installed on the moving end of the lifting and moving device, and a plurality of rotary spraying brushes are installed on the synchronous driving device. The application can effectively save manpower, improve work efficiency and ensure cleaning effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air coolers, in particular to a cold air circulating device for refrigeration air coolers. BACKGROUND

[0002] When the fan is running during the operation of the air cooler, the wet curtain air cooler generates negative pressure, causing the air outside the machine to flow through the porous wet curtain into the machine. Due to the evaporation of water on the wet curtain, heat is absorbed, forcing the air passing through the wet curtain to cool down. At the same time, due to the evaporation of water on the wet curtain to the air passing through the wet curtain, the humidity of the air is increased, so the evaporative air cooler has the dual functions of cooling and humidifying.

[0003] At present, the evaporative air cooler gradually replaces the traditional mechanical refrigeration air conditioning equipment with the advantages of environmental protection, energy saving and cooling in a large open space. The fan draws air, negative pressure is generated in the machine, and air passes through the wet curtain. At the same time, the water pump continuously pumps the water in the bottom disc into the water distribution pipe on the wet curtain, and the water is evenly wetted on the entire contact area of the wet curtain through the water distribution pipe and the drainage curtain at the top of the wet curtain. The evaporation of water can absorb a large amount of heat in the air, so the air sent by the fan is cool, humid and fresh.

[0004] However, the circulating air of the existing air cooler continuously passes through the wet curtain for cooling, and the flowing air is filtered through the filter screen. Although the filter screen can effectively filter part of the dust, dust and dirt still pass through the filter screen and adhere to the wet curtain. The adhered dust needs to be cleaned regularly. The traditional air cooler needs to be disassembled manually and then cleaned manually with cleaning liquid when cleaning the wet curtain. Manual cleaning will waste manpower and reduce work efficiency. At the same time, the traditional water curtain is thick, and when the air flow passes through the water curtain, part of the dust will adhere to the inside of the water curtain, making it difficult to clean and affecting the cleaning quality. SUMMARY

[0005] In view of the above problems, the cold air circulating device for refrigeration air coolers is provided. The water curtain self-cleaning device can automatically clean the water curtain automatically, effectively saving manpower and improving work efficiency. At the same time, multiple water curtains are installed for stacked use, which can reduce the thickness of a single water curtain and ensure the cleaning effect.

[0006] In order to solve the prior art problems, the application provides a cold air circulating device for refrigeration fan, which comprises a circulating air blower and a water curtain self-cleaning device installed at the air inlet end of the circulating air blower, a spraying device is installed inside the circulating air blower, the output end of the spraying device is connected with the water curtain self-cleaning device, the water curtain self-cleaning device comprises a filtering air guide rail, a water guide rail is installed inside the filtering air guide rail, a circulating filtering water tank is arranged at the side of the water guide rail, a folding and unfolding device is installed above the circulating filtering water tank and the water guide rail, a plurality of water curtains are installed inside the folding and unfolding device, a lifting and moving device is further installed on the circulating filtering water tank, a synchronous driving device is installed at the moving end of the lifting and moving device, and a plurality of rotating spraying brushes are installed on the synchronous driving device.

[0007] Preferably, the filtering air guide rail is installed at the side of the circulating air blower, an air inlet is arranged at the side of the filtering air guide rail, a scraping and brushing pulling rail is installed at the side of the air inlet, a filtering screen is installed on the scraping and brushing pulling rail, and a water blocking grid plate is further installed outside the air inlet.

[0008] Preferably, the side of the scraping and brushing pulling rail is provided with a pulling and inserting rail, the bottom of the scraping and brushing pulling rail is provided with an inclined dust falling hole, and friction cleaning brushes are symmetrically installed inside the scraping and brushing pulling rail.

[0009] Preferably, the folding and unfolding device comprises ball screw sliding tables and limiting sliding rails which are symmetrically installed inside the filtering air guide rail, a plurality of limiting mounting frames are installed between the ball screw sliding tables and the limiting sliding rails, fixed mounting rods are installed at one end of the bottom of the limiting mounting frames, unfolding connecting rods are installed between the bottoms of adjacent two limiting mounting frames, sliding connection grooves are arranged on one end surface of the unfolding connecting rods, the fixed mounting rods are slidably connected with the sliding connection grooves, and the other end of the unfolding connecting rod is rotatably connected with the end of the adjacent limiting mounting frame which is away from the fixed mounting rod.

[0010] Preferably, the limiting mounting frame is provided with a limiting placing groove inside, a water leakage hole is arranged at the bottom of the limiting mounting frame, ventilation openings are arranged at the two sides of the limiting mounting frame, a moving clamping block is arranged at the side of the limiting mounting frame, and a pressing frame is further arranged on the limiting mounting frame.

[0011] Preferably, the circulating filtering water tank comprises a scraping and cleaning bucket installed at the side of the water guide rail, a water storage tank is installed at the bottom of the scraping and cleaning bucket, a pulling and filtering rail is installed between the scraping and cleaning bucket and the water storage tank, a limiting clamping block is further installed at the side of the scraping and cleaning bucket, and a suction pump is installed at the side of the water storage tank.

[0012] Preferably, the inside bottom surface of the scraping and cleaning bucket is inclined, inclined scraping strips are arranged at equal intervals in the inside of the scraping and cleaning bucket, and scraping teeth are arranged on the inclined scraping strips.

[0013] Preferably, the lifting moving device comprises a limiting guide column fixedly installed on the material scraping cleaning bucket, an adjusting threaded rod is installed beside the limiting guide column, the adjusting threaded rod is rotationally connected with the material scraping cleaning bucket, a lifting frame is installed on the limiting guide column and the adjusting threaded rod, the lifting frame is slidingly connected with the limiting guide column and is screwedly connected with the adjusting threaded rod, and the lifting moving device further comprises a first rotary driver for driving the adjusting threaded rod to rotate.

[0014] Preferably, the synchronous driving device comprises a plurality of rotary joints and a communication joint symmetrically installed on both ends of the inner side of the lifting frame, a synchronous rotating wheel is installed on each of the rotary joints, a transmission chain is installed on the synchronous rotating wheel, a second rotary driver is installed on the lifting frame, an output end of the second rotary driver is in transmission connection with the synchronous rotating wheel, a spring is installed between the communication joint and the lifting frame, and the communication joint is in communication with the suction pump.

[0015] Preferably, the rotary spraying brush comprises a rotary installation shaft installed between the rotary joint and the communication joint, both ends of the rotary installation shaft are limitingly clamped with the rotary joint and the communication joint respectively, the inside of the rotary installation shaft is provided with a flow-through hole, the outside of the rotary installation shaft is provided with a limiting sliding slot, the outside of the rotary installation shaft is provided with a plurality of first water spraying holes, the outside of the rotary installation shaft is further provided with a rotary sleeve, the inside of the rotary sleeve is provided with an installation clamping block, the installation clamping block is clamped with the limiting sliding slot, the outside of the rotary sleeve is provided with a second water spraying hole, and the outside of the rotary sleeve is covered with a brush.

[0016] The beneficial effects of the present application compared with the prior art are:

[0017] 1. The circulating air blower rotates to form a suction force, so that the air outside the filter air guide rail is adsorbed into the inside, when the flowing air enters the air inlet of the filter air guide rail, the filter air guide rail will preliminarily filter the dust in the airflow, but the air is long-term flowing, so that part of the dust will still be attached to the water curtain, the dust accumulation on the water curtain will reduce the fluid flow rate and affect the air quality, when the water curtain needs to be cleaned regularly, the folding and unfolding device is started to adjust the position of the water curtain, so that the water curtain is unfolded and moved to the circulating filter water tank, the lifting moving device drives the rotary spraying brush to descend synchronously, when the rotary spraying brush moves downward, the rotary spraying brush will be inserted into the gap of the unfolded water curtain, the synchronous driving device drives the rotary spraying brush to rotate synchronously when the rotary spraying brush moves downward, the circulating filter water tank will deliver the cleaning liquid in the inside to the rotary spraying brush when the rotary spraying brush rotates, and the rotary spraying brush rotates to cooperate with the cleaning liquid on the surface of the water curtain to clean the surface of the water curtain, so that the dust on the surface of the water curtain can be effectively removed, the circulating filter water tank is used for receiving the sewage, the circulating filter water tank can effectively filter the cleaning water for recycling, and the rotary spraying brush is reset after repeatedly cleaning the surface of the water curtain, so that the water curtain can be automatically cleaned automatically, manpower can be effectively saved, and work efficiency can be improved.

[0018] 2、When the water curtain is installed, the limiting installation frame needs to be stacked above the water guide rail. The ball screw sliding table can drive the limiting installation frame to move towards the water guide rail. The limiting sliding rail is used to guide the limiting installation frame to move horizontally in sequence, so that the limiting installation frame is in a stacked state. When the limiting installation frame needs to be unfolded and cleaned, the ball screw sliding table drives the limiting installation frame to move horizontally. When the limiting installation frame moves horizontally, the unfolding connecting rod moves synchronously. When the unfolding connecting rod moves, the sliding connecting groove slides along the fixed installation rod. When the connecting groove slides along the fixed installation rod, the multiple limiting installation frames are separated from each other. When the inner wall of the connecting groove is in contact with the fixed installation rod, the connecting groove cannot slide. The continuous movement of the unfolding connecting rod and the connecting groove drives the fixed installation rod to move horizontally synchronously. When the fixed installation rod moves, the limiting installation frame connected to it moves synchronously. Through the above linkage method, multiple limiting installation frames can be unfolded and moved to the position of the circulating filter water tank, and then stopped. The limiting installation frame is in an equidistant unfolded state. The lifting and moving device drives the rotating spray brush to move downward synchronously. The rotating spray brush moves downward and rotates. When the rotating spray brush moves downward and rotates, the circulating filter water tank delivers cleaning liquid to the rotating spray brush. When the rotating spray brush rotates, the cleaning liquid is cleaned on the surface of the water curtain. Dust on the surface of the water curtain can be effectively removed. By installing multiple water curtains for stacking use, the thickness of a single water curtain can be reduced, the cleaning area can be increased, and the cleaning effect can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of a cold air circulating device for a refrigeration fan.

[0020] Figure 2 It is a sectional view of a cold air circulating device for a refrigeration fan.

[0021] Figure 3 It is a sectional view of a cold air circulating device for a refrigeration fan.

[0022] Figure 4 It is a perspective view of a water curtain self-cleaning device in a cold air circulating device for a refrigeration fan.

[0023] Figure 5 It is a sectional view of a water curtain self-cleaning device in a cold air circulating device for a refrigeration fan.

[0024] Figure 6 It is a perspective view of a scraper brush pulling rail in a cold air circulating device for a refrigeration fan.

[0025] Figure 7 It is a perspective view of a part of the structure of a cold air circulating device for a refrigeration fanFigure 1 .

[0026] Figure 8 is a perspective view of a part structure of a cold air circulating device for a refrigeration fan Figure 2 .

[0027] Figure 9 is Figure 8 is a partial enlarged view of A in FIG. 1.

[0028] Figure 10 is a perspective view of a limiting installation rack in a cold air circulating device for a refrigeration fan

[0029] Figure 11 is a perspective view of a circulating filter water tank in a cold air circulating device for a refrigeration fan

[0030] Figure 12 is Figure 11 is a partial enlarged view of B in FIG. 2.

[0031] Figure 13 is a perspective view of a synchronous driving device and a rotating spray brush in a cold air circulating device for a refrigeration fan

[0032] Figure 14 is an exploded view of a rotating spray brush in a cold air circulating device for a refrigeration fan

[0033] Reference numerals in the drawings are:

[0034] 1-circulating air blower; 11-spraying device; 12-water curtain; 2-filtered air guide rail; 21-sealing cover plate; 22-filtering screen; 23-scraping brush pulling rail; 231-pulling through rail; 232-friction cleaning brush; 233-inclined dust falling hole; 24-water blocking grid; 3-water guide rail; 4-folding and unfolding device; 41-rolling ball screw sliding table; 42-limiting sliding rail; 43-limiting installation rack; 431-leakage hole; 432-ventilation opening; 433-moving clamping block; 434-limiting placing groove; 435-pressing frame; 44-fixed installation rod; 45-unfolding connecting rod; 451-sliding connecting groove; 5-circulating filter water tank; 51-scraping cleaning hopper; 511-inclined scraping strip; 512-scraping teeth; 52-pulling filter rail; 53-water storage tank; 54-limiting clamping block; 55-suction pump; 6-lifting moving device; 61-lifting frame; 62-limiting guide column; 63-adjusting screw rod; 64-first rotary driver; 7-synchronous driving device; 71-rotary joint; 72-synchronous rotating wheel; 73-transmission chain; 74-second rotary driver; 75-communicating joint; 76-spring; 8-rotating spray brush; 81-rotating installation shaft; 811-first water spraying hole; 812-flowing hole; 813-limiting sliding groove; 82-rotating sleeve; 821-second water spraying hole; 822-installation clamping block; 823-brush. DETAILED DESCRIPTION

[0035] In order to further understand the features, technical means and specific purposes and functions of the present application, the present application will be described in further detail below in conjunction with the drawings and specific embodiments.

[0036] Referring to Figures 1 to 14 As shown in the drawings, a cold air circulating device for a refrigeration fan includes a circulating air blower 1 and a water curtain self-cleaning device installed at the air inlet end of the circulating air blower 1. The circulating air blower 1 is internally provided with a spraying device 11, the output end of the spraying device 11 is connected with the water curtain self-cleaning device, the water curtain self-cleaning device includes a filtering air guide rail 2, the inside of the filtering air guide rail 2 is internally provided with a water guide rail 3, the side of the water guide rail 3 is provided with a circulating filtering water tank 5, the upper side of the circulating filtering water tank 5 and the water guide rail 3 is provided with a folding and unfolding device 4, the inside of the folding and unfolding device 4 is internally provided with a plurality of water curtains 12, the circulating filtering water tank 5 is further provided with a lifting and moving device 6, the moving end of the lifting and moving device 6 is provided with a synchronous driving device 7, a plurality of rotating spraying brushes 8 are installed on the synchronous driving device 7.

[0037] When air supply is needed, the staff first installs multiple water curtains 12 on the folding and unfolding device 4 in turn, and the folding and unfolding device 4 pushes the installed water curtains 12 to the upper side of the water guide rail 3 in turn. After the installation of the water curtains 12 is completed, the spraying device 11 sprays cooling water on the water curtains 12, so that the cooling water on the water curtains 12 falls into the water guide rail 3, and the water guide rail 3 delivers the cooling water to the spraying device 11. When air supply is needed, the circulating air blower 1 rotates to form a suction force, so that the air outside the filtering air guide rail 2 is sucked into the inside. When the flowing air enters the air inlet of the filtering air guide rail 2, the filtering air guide rail 2 performs preliminary dust filtration on the airflow. However, the air is long-term flowing, and part of the dust still adheres to the water curtains 12. The dust accumulation on the water curtains 12 reduces the fluid flow rate and affects the air quality. When the water curtains 12 need to be cleaned regularly, the folding and unfolding device 4 is started to adjust the position of the water curtains 12, so that the water curtains 12 are unfolded and moved to the circulating filtering water tank 5. The lifting and moving device 6 drives the rotating spraying brush 8 to descend synchronously. When the rotating spraying brush 8 moves downward, the rotating spraying brush 8 is inserted into the gap of the unfolded water curtains 12. When the rotating spraying brush 8 moves downward, the synchronous driving device 7 drives the rotating spraying brush 8 to rotate synchronously. When the rotating spraying brush 8 rotates, the circulating filtering water tank 5 delivers cleaning liquid to the rotating spraying brush 8. When the rotating spraying brush 8 rotates, the cleaning liquid is cleaned on the surface of the water curtains 12, which can effectively remove the dust on the surface of the water curtains 12. The circulating filtering water tank 5 is used to receive the cleaning sewage, and the circulating filtering water tank 5 can effectively filter the cleaning water for recycling. After the rotating spraying brush 8 repeatedly cleans the surface of the water curtains 12, the rotating spraying brush 8 is reset. The water curtains 12 can be automatically cleaned automatically, which saves manpower. At the same time, multiple water curtains 12 are installed and stacked for use, which can reduce the thickness of a single water curtain 12 and improve the cleaning surface to ensure the cleaning effect.

[0038] Referring to Figures 4 to 5 As shown in the figure, the filtering air guide rail 2 is installed on the side of the circulating air blower 1. The side of the filtering air guide rail 2 is provided with an air inlet. The air inlet is provided with a scraping and brushing pulling rail 23. The scraping and brushing pulling rail 23 is provided with a filtering screen 22. The outer side of the air inlet is also provided with a water blocking grid 24. The top and side of the filtering air guide rail 2 are provided with maintenance openings. The maintenance openings are provided with sealing cover plates 21.

[0039] The circulating blower 1 rotates to form a suction force, so that the air outside the filter air guide rail 2 is sucked into the inside from the air inlet. The water baffle 24 installed at the air inlet position is used to block rainwater, so as to prevent rainwater from entering the inside of the filter air guide rail 2 when used outdoors. The scraping and pulling rail 23 on the side of the filter air guide rail 2 can limit the installation of the filter screen 22 in the air inlet. The filter screen 22 can preliminarily filter the air to reduce the dust directly entering the filter screen 22. The maintenance opening on the top and side of the filter air guide rail 2 is used to disassemble and replace the internal parts and the water curtain 12. The sealing cover plate 21 is used to block the maintenance opening.

[0040] Referring to Figure 5 and Figure 6 As shown in the drawings, the side of the scraping and pulling rail 23 is provided with a pulling and inserting rail 231, the bottom of the scraping and pulling rail 23 is provided with an inclined dust falling hole 233, and the inside of the scraping and pulling rail 23 is symmetrically provided with a friction cleaning brush 232 on both sides.

[0041] The pulling and inserting rail 231 on the side of the scraping and pulling rail 23 is used to limit the installation of the filter screen 22. After long-term filtering, dust will be attached to the surface of the filter screen 22. When the filter screen 22 needs to be cleaned, the worker pulls the filter screen 22, so that the filter screen 22 slides and inserts in the pulling and inserting rail 231. When the filter screen 22 moves in the pulling and inserting rail 231, the friction cleaning brushes 232 on both sides of the scraping and pulling rail 23 will rub the surface of the filter screen 22. When the friction cleaning brushes 232 clean, the dust will fall out of the inclined dust falling hole 233. The filter screen 22 can be effectively and quickly pulled out, and the convenience of cleaning and the labor can be saved.

[0042] Referring to Figures 5 to 9 As shown in the drawings, the folding and unfolding device 4 includes a ball screw sliding table 41 and a limiting sliding rail 42 symmetrically installed inside the filter air guide rail 2. A plurality of limiting mounting frames 43 are installed between the ball screw sliding table 41 and the limiting sliding rail 42. The bottom of each limiting mounting frame 43 is provided with a fixed mounting rod 44. The bottom between the adjacent two limiting mounting frames 43 is provided with an unfolding connecting rod 45. One end of the unfolding connecting rod 45 is provided with a sliding connection groove 451. The fixed mounting rod 44 is slidably connected with the sliding connection groove 451. The other end of the unfolding connecting rod 45 is rotatably connected with the end of the adjacent limiting mounting frame 43 away from the fixed mounting rod 44.

[0043] The limiting installation frame 43 is used for limiting the installation of the water curtain 12. When the water curtain 12 is installed and needs to be stacked above the water guide rail 3, the limiting installation frame 43 can be moved to the water guide rail 3 through the ball screw sliding table 41. The limiting sliding rail 42 is used for guiding the limiting installation frame 43 to move horizontally in sequence, so that the limiting installation frame 43 is in a stacked state. When the limiting installation frame 43 needs to be unfolded to clean the water curtain 12, the limiting installation frame 43 can be moved horizontally through the ball screw sliding table 41. When the limiting installation frame 43 moves horizontally, the unfolded connecting rod 45 rotatingly installed at the bottom moves synchronously. When the unfolded connecting rod 45 moves, the sliding connection groove 451 of the unfolded connecting rod 45 rotates to adjust the angle, and simultaneously slides along the fixed installation rod 44. When the inner wall of the sliding connection groove 451 abuts against the fixed installation rod 44, the sliding connection groove 451 cannot slide. The continuous movement of the unfolded connecting rod 45 and the sliding connection groove 451 drives the fixed installation rod 44 to move horizontally synchronously. When the fixed installation rod 44 moves, the limiting installation frame 43 connected with the fixed installation rod 44 moves synchronously. Through the above linkage mode, the multiple limiting installation frames 43 can be unfolded to move to the position of the circulating filter water tank 5 and then stop. The limiting installation frame 43 is in an equidistant unfolded state, which effectively and automatically switches the position of the water curtain 12. At the same time, multiple water curtains 12 are installed to be stacked for use, which facilitates to reduce the thickness of a single water curtain 12, improve the cleaning surface, and ensure the cleaning effect.

[0044] As shown in Figure 8 and Figure 10 , the limiting installation frame 43 is internally provided with a limiting placement groove 434. The bottom of the limiting installation frame 43 is provided with a water leakage hole 431. The two sides of the limiting installation frame 43 are provided with ventilation openings 432. The side of the limiting installation frame 43 is provided with a moving clamping block 433. The limiting installation frame 43 is further provided with a pressing frame 435.

[0045] The limiting placement groove 434 in the limiting installation frame 43 is used for limiting the insertion and installation of the water curtain 12. The water leakage hole 431 at the bottom of the limiting installation frame 43 facilitates the falling and flowing of cooling water. The ventilation openings 432 of the limiting installation frame 43 are used for air circulation. The moving clamping block 433 of the limiting installation frame 43 is used for limiting the moving position. The pressing frame 435 on the limiting installation frame 43 is used for pressing the installed water curtain 12.

[0046] As shown in Figure 2 and Figure 11 , the circulating filter water tank 5 includes a scraping cleaning bucket 51 installed on the side of the water guide rail 3. The bottom of the scraping cleaning bucket 51 is provided with a water storage tank 53. The water storage tank 53 and the scraping cleaning bucket 51 are provided with a pull-out filter rail 52. The side of the scraping cleaning bucket 51 is further provided with a limiting clamping block 54. The side of the water storage tank 53 is provided with a suction pump 55.

[0047] The limiting block 54 of the scraper cleaning hopper 51 is used to limit the movement position of the moving block 433 of the mounting bracket 43. The water storage tank 53 of the circulating filter water tank 5 is used to store cleaning fluid. When the water curtain 12 needs to be cleaned regularly, the folding and unfolding device 4 is activated to adjust the position of the water curtain 12, so that the water curtain 12 unfolds and moves above the scraper cleaning hopper 51. The lifting and moving device 6 then drives the rotating spray brush 8 to descend synchronously. When the rotating spray brush 8 descends, it will insert into the gap of the unfolded water curtain 12. The step drive device 7 drives the rotating spray brush 8 to rotate synchronously. When the rotating spray brush 8 rotates, the suction pump 55 will transport the cleaning fluid inside the water storage tank 53 to the rotating spray brush 8. When the rotating spray brush 8 rotates, it works with the cleaning fluid to clean the surface of the water curtain 12, which can effectively remove the dust from the surface of the water curtain 12. The scraper cleaning hopper 51 is used to receive the wastewater from the cleaning. The pull-out filter rail 52 between the water storage tank 53 and the scraper cleaning hopper 51 is used to filter and separate the cleaning fluid and dirt. The separated cleaning fluid is then returned to the inside of the water storage tank 53.

[0048] See Figure 11 and Figure 12 As shown, the bottom surface of the scraper cleaning hopper 51 is inclined, and the interior of the scraper cleaning hopper 51 is filled with inclined scraper strips 511 at equal intervals, and the inclined scraper strips 511 are evenly covered with scraper teeth 512.

[0049] When the rotating spray brush 8 descends to the position of the scraper cleaning hopper 51, the rotating spray brush 8 continues to rotate and will come into contact with the inclined scraper bar 511 in the scraper cleaning hopper 51. The scraper teeth 512 on the inclined scraper bar 511 will loosen the rotating spray brush 8, so that the dirt adhering to the rotating spray brush 8 is scraped off onto the inclined scraper bar 511.

[0050] See Figures 5 to 8 As shown, the lifting and moving device 6 includes a limiting guide post 62 fixedly installed on the scraping cleaning hopper 51. An adjusting threaded rod 63 is installed on the side of the limiting guide post 62. The adjusting threaded rod 63 is rotatably connected to the scraping cleaning hopper 51. A lifting frame 61 is installed on the limiting guide post 62 and the adjusting threaded rod 63. The lifting frame 61 is slidably connected to the limiting guide post 62. The lifting frame 61 is threadedly connected to the adjusting threaded rod 63. The lifting and moving device 6 also includes a first rotary driver 64 that drives the adjusting threaded rod 63 to rotate.

[0051] The first rotary driver 64 is preferably a servo motor. When the water curtain 12 needs to be cleaned regularly, the folding and unfolding device 4 is started to adjust the position of the water curtain 12, so that the water curtain 12 is unfolded and moved above the cleaning hopper 51. The servo motor drives the adjusting screw rod 63 to rotate, and the adjusting screw rod 63 rotates to drive the lifting frame 61 to slide up and down along the limiting guide column 62. When the lifting frame 61 moves, the synchronous driving device 7 and the rotary spray brush 8 are synchronously driven to move up and down.

[0052] As shown in Figure 7 and Figure 13 , the synchronous driving device 7 includes a plurality of rotating joints 71 symmetrically installed at both ends of the inside of the lifting frame 61, and a communication joint 75. The rotating joint 71 is provided with a synchronous rotating wheel 72, and the synchronous rotating wheel 72 is provided with a transmission chain 73. The lifting frame 61 is provided with a second rotary driver 74, and the output end of the second rotary driver 74 is in transmission connection with the synchronous rotating wheel 72. The communication joint 75 is provided with a spring 76 between the lifting frame 61, and the communication joint 75 is in communication with the suction pump 55.

[0053] The second rotary driver 74 is preferably a servo motor. The rotary spray brush 8 is installed between the rotating joint 71 and the communication joint 75. When installing, the worker first presses and extrudes the spring 76 outward, then places the rotary spray brush 8 into the rotating joint 71 and the communication joint 75, and then releases the communication joint 75 to reset the spring 76, so as to clamp and install the rotary spray brush 8 on the rotating joint 71 and the communication joint 75. When the plurality of rotary spray brushes 8 need to be driven to rotate, the servo motor drives the synchronous rotating wheel 72 to rotate, and the synchronous rotating wheel 72 rotates to drive the rotating joint 71 to rotate synchronously. When the rotating joint 71 rotates, the installed rotary spray brush 8 rotates synchronously. When the synchronous rotating wheel 72 rotates, the plurality of synchronous rotating wheels 72 can be driven to rotate synchronously through the transmission chain 73, so as to realize synchronous driving. The communication joint 75 is in communication with the suction pump 55, and when the rotary spray brush 8 rotates, the suction pump 55 can deliver the cleaning liquid in the water storage tank 53 to the communication joint 75, and the communication joint 75 can deliver the cleaning liquid to the inside of the rotary spray brush 8.

[0054] As shown in Figure 13 and Figure 14As shown, the rotating spray brush 8 comprises a rotating mounting shaft 81 mounted between the rotating joint 71 and the communicating joint 75, both ends of the rotating mounting shaft 81 are limited and clamped with the rotating joint 71 and the communicating joint 75 respectively, the inside of the rotating mounting shaft 81 is provided with a flow-through hole 812, the outside of the rotating mounting shaft 81 is provided with a limiting sliding groove 813, the outside of the rotating mounting shaft 81 is provided with a plurality of first water spray holes 811, the outside of the rotating mounting shaft 81 is further provided with a rotating sleeve 82, the inside of the rotating sleeve 82 is provided with a mounting clamping block 822, the mounting clamping block 822 is clamped with the limiting sliding groove 813, the outside of the rotating sleeve 82 is provided with a second water spray hole 821, and the outside of the rotating sleeve 82 is covered with a brush 823.

[0055] The rotating mounting shaft 81 of the rotating spray brush 8 is used for mounting between the rotating joint 71 and the communicating joint 75, the limiting sliding groove 813 on the outside of the rotating mounting shaft 81 is used for limiting and mounting the mounting clamping block 822 in the rotating sleeve 82, the brush 823 is worn out after long-term use, and the rotating sleeve 82 can be directly replaced when it needs to be replaced. When the rotating spray brush 8 rotates, the suction pump 55 will deliver the cleaning liquid in the water storage tank 53 to the communicating joint 75, the communicating joint 75 will deliver the cleaning liquid to the flow-through hole 812 of the rotating mounting shaft 81, the rotating mounting shaft 81 will deliver the cleaning liquid to the inside of the rotating sleeve 82 through a plurality of first water spray, and the rotating sleeve 82 will deliver the cleaning liquid to the brush 823 through the second water spray hole 821 for cleaning, thereby effectively ensuring the cleaning effect.

[0056] Specific working principle:

[0057] When air supply using the air cooler is needed, the plurality of water curtains 12 are sequentially installed on the folding and unfolding device 4, the folding and unfolding device 4 sequentially stacks and pushes the installed water curtains 12 to the upper side of the water guide rail 3, after the installation of the water curtains 12, the spraying device 11 sprays cooling water on the water curtains 12, so that the cooling water on the water curtains 12 falls into the water guide rail 3, and the water guide rail 3 delivers the cooling water to the spraying device 11, when air supply is needed, the circulating air blower 1 rotates to form suction force, so that the air outside the filtering air guide rail 2 is sucked into the inside, when the flowing air enters the air inlet of the filtering air guide rail 2, the filtering air guide rail 2 performs preliminary dust filtration on the airflow, but the air is long-term circulation, and part of the dust still adheres to the water curtains 12, the dust accumulation on the water curtains 12 reduces the fluid flow rate and affects the air quality, when the water curtains 12 need to be cleaned regularly, the folding and unfolding device 4 is started to adjust the position of the water curtains 12, so that the water curtains 12 are unfolded and moved to the circulating filtering water tank 5, the lifting and moving device 6 drives the rotating spraying brush 8 to descend synchronously, when the rotating spraying brush 8 moves downward, the rotating spraying brush 8 is inserted into the gap of the unfolded water curtains 12, when the rotating spraying brush 8 moves downward, the synchronous driving device 7 drives the rotating spraying brush 8 to rotate synchronously, when the rotating spraying brush 8 rotates, the circulating filtering water tank 5 delivers cleaning liquid in the inside to the rotating spraying brush 8, when the rotating spraying brush 8 rotates, the cleaning liquid is cleaned on the surface of the water curtains 12, which can effectively remove the dust on the surface of the water curtains 12, the circulating filtering water tank 5 is used for receiving the cleaning sewage, the circulating filtering water tank 5 can effectively filter the cleaning water for recycling, the rotating spraying brush 8 is reset after repeated cleaning of the surface of the water curtains 12, which can effectively automatically clean the water curtains 12 to save manpower, and the plurality of water curtains 12 are stacked for use, which can reduce the thickness of a single water curtain 12 and improve the cleaning area to ensure the cleaning effect.

[0058] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A cooling air circulation device for a refrigeration fan, comprising a circulating blower (1) and a water curtain self-cleaning device installed at the air inlet of the circulating blower (1), wherein a spraying device (11) is installed inside the circulating blower (1), and the output end of the spraying device (11) is connected to the water curtain self-cleaning device, characterized in that, The water curtain self-cleaning device includes a filter guide rail (2), a water guide rail (3) is installed inside the filter guide rail (2), a circulating filter water tank (5) is provided on the side of the water guide rail (3), a folding and unfolding device (4) is installed above the circulating filter water tank (5) and the water guide rail (3), multiple water curtains (12) are installed inside the folding and unfolding device (4), a lifting and moving device (6) is also installed on the circulating filter water tank (5), a synchronous drive device (7) is installed on the moving end of the lifting and moving device (6), and several rotating spray brushes (8) are installed on the synchronous drive device (7). The filter guide rail (2) is installed on the side of the circulating blower (1). The side of the filter guide rail (2) is provided with an air inlet. A scraper pull rail (23) is installed on the side of the air inlet. A filter screen (22) is installed on the scraper pull rail (23). A water baffle (24) is also installed on the outside of the air inlet. The top and side of the filter guide rail (2) are provided with maintenance ports. A sealing cover (21) is installed on each maintenance port. The side of the scraper pull rail (23) is provided with a pull-through rail (231), the bottom of the scraper pull rail (23) is provided with an inclined dust collection hole (233), and friction cleaning brushes (232) are symmetrically installed on both sides inside the scraper pull rail (23). The folding and unfolding device (4) includes a ball screw slide (41) and a limiting slide rail (42) symmetrically installed inside the filter guide rail (2). Several limiting mounting brackets (43) are installed between the ball screw slide (41) and the limiting slide rail (42). A fixed mounting rod (44) is installed at one bottom end of each limiting mounting bracket (43). An unfolding connecting rod (45) is installed between the bottoms of two adjacent limiting mounting brackets (43). A sliding connecting groove (451) is provided on one end of the unfolding connecting rod (45). The fixed mounting rod (44) is slidably connected to the sliding connecting groove (451) respectively. The other end of the unfolding connecting rod (45) is rotatably connected to the end of the adjacent limiting mounting bracket (43) away from the fixed mounting rod (44). The limiting mounting bracket (43) has a limiting placement groove (434) inside, a water leakage hole (431) at the bottom of the limiting mounting bracket (43), ventilation openings (432) on both sides of the limiting mounting bracket (43), a movable locking block (433) on the side of the limiting mounting bracket (43), and a pressing bracket (435) on the limiting mounting bracket (43).

2. The air circulation device for a refrigeration fan according to claim 1, characterized in that, The circulating filter tank (5) includes a scraper cleaning hopper (51) installed on the side of the water guide rail (3), a water storage tank (53) installed at the bottom of the scraper cleaning hopper (51), a pull-out filter rail (52) installed between the water storage tank (53) and the scraper cleaning hopper (51), a limit block (54) installed on the side of the scraper cleaning hopper (51), and a suction pump (55) installed on the side of the water storage tank (53).

3. The air circulation device for a refrigeration fan according to claim 2, characterized in that, The bottom surface of the scraper cleaning hopper (51) is inclined, and the interior of the scraper cleaning hopper (51) is filled with inclined scraper strips (511) at equal intervals, and the inclined scraper strips (511) are evenly covered with scraper teeth (512).

4. A cooling air circulation device for a refrigeration fan according to claim 3, characterized in that, The lifting and moving device (6) includes a limiting guide post (62) fixedly installed on the scraper cleaning hopper (51), an adjusting threaded rod (63) installed on the side of the limiting guide post (62), the adjusting threaded rod (63) being rotatably connected to the scraper cleaning hopper (51), a lifting frame (61) being installed on the limiting guide post (62) and the adjusting threaded rod (63), the lifting frame (61) being slidably connected to the limiting guide post (62), and the lifting frame (61) being threadedly connected to the adjusting threaded rod (63). The lifting and moving device (6) also includes a first rotary driver (64) that drives the adjusting threaded rod (63) to rotate.

5. A cooling air circulation device for a refrigeration fan according to claim 4, characterized in that, The synchronous drive device (7) includes multiple rotating joints (71) and connecting joints (75) symmetrically installed at both ends of the inner side of the lifting frame (61). Each rotating joint (71) is equipped with a synchronous rotating wheel (72), a transmission chain (73) is installed on the synchronous rotating wheel (72), and a second rotary driver (74) is installed. The output end of the second rotary driver (74) is connected to the synchronous rotating wheel (72) for transmission. A spring (76) is installed between the connecting joint (75) and the lifting frame (61), and the connecting joint (75) is connected to the suction pump (55).

6. A cooling air circulation device for a refrigeration fan according to claim 5, characterized in that, The rotating spray brush (8) includes a rotating mounting shaft (81) installed between a rotating joint (71) and a connecting joint (75). The two ends of the rotating mounting shaft (81) are respectively limited and engaged with the rotating joint (71) and the connecting joint (75). The rotating mounting shaft (81) has a flow hole (812) inside and a limiting groove (813) on the outside. The rotating mounting shaft (81) has multiple first water spray holes (811) on the outside. A rotating sleeve (82) is also installed on the outside of the rotating mounting shaft (81). The rotating sleeve (82) has an installation block (822) inside and engages with the limiting groove (813). The rotating sleeve (82) has a second water spray hole (821) on the outside and is covered with brushes (823).

Images