Movable industrial air cooler

Abstract

The invention relates to the technical field of air coolers, in particular to a movable industrial air cooler which comprises a barrel, a wet curtain, a rotating assembly, a spraying assembly and a negative pressure suction assembly. The wet curtain comprises multiple layers of curtain barrels; the curtain cylinder comprises a plurality of fiber paper strips; when air is cooled, the rotating assembly drives the wet curtain to rotate in the vortex-shaped spiral deflection direction of the cooling gap, the vortex-shaped cooling gap assists the negative-pressure suction assembly to increase the air inlet amount entering the inner side of the wet curtain, the atomization spray head sprays water to the wet curtain in the radial direction of the barrel, and after water mist collides with the wet curtain, the water mist is sprayed to the inner side of the wet curtain. When part of the water mist encounters air penetrating from the outer side of the wet curtain to the inner side of the wet curtain, the air is cooled by utilizing an evaporation effect, and dust in the air is entrained to leave the wet curtain under the action of centrifugal force, so that a path for the dust to leave the wet curtain is shortened, the dust is prevented from being deposited below the wet curtain, and the air cooling effect is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of air coolers, in particular to a movable industrial air cooler. Background Art

[0002] Industrial air coolers are compressor-free, refrigerant-free, and environmentally friendly cooling devices that utilize evaporative cooling to achieve ventilation and cooling. Their core operating principle is to generate negative pressure through a fan, forcing outside air to flow through a moistened damp curtain. The evaporation of the water absorbs heat, lowering the air temperature (typically 5-15°C below the outdoor dry-bulb temperature) while simultaneously increasing the humidity (relative humidity can reach 75%). The air cooler then transports the moistened air outward through an outlet duct.

[0003] In existing technology, such as the Chinese patent application CN217330060U, titled "Air Cooler," the disclosed technical solution describes a pumping pipe that transports water (or a humidifying liquid capable of cooling air) from a water tank to a sprinkler head. Water sprays from the sprinkler head onto a wet curtain from top to bottom, forming a water film. As air passes through the wet curtain, dust in the air is trapped on the curtain, and the water film flows downward, flushing the dust into the water tank. However, as dust from the upper end of the wet curtain gradually flows to the lower end, it can accumulate and clog the lower end, resulting in poor cooling of the air entering the air cooler. Summary of the Invention

[0004] The present invention provides a movable industrial air cooler to solve the above problems.

[0005] A movable industrial air cooler of the present invention adopts the following technical solution: a movable industrial air cooler includes a cylinder, a wet curtain, a rotating component, a spray component, and a negative pressure suction component.

[0006] The cylinder axis is arranged up and down, with an air outlet at the upper end and a water tank fixed at the lower end; multiple air inlets are evenly distributed on the side wall of the cylinder; and a cylindrical mesh is provided on the outer cover of the cylinder.

[0007] The wet curtain is arranged in the cylinder; the wet curtain includes multiple layers of curtain tubes; the multiple layers of curtain tubes are coaxial and distributed radially along the cylinder; the curtain tube includes multiple fiber paper strips; the multiple fiber paper strips are cylindrical; the fiber paper strips extend up and down in a wavy shape; the crests of the fiber paper strips extend up and down tilted compared to the horizontal direction, and the crests of adjacent fiber paper strips in the same curtain tube are tilted in opposite directions; the crests of adjacent fiber paper strips in the same curtain tube are fixedly connected; adjacent fiber paper strips in the same curtain tube form a cooling gap; the projection of the cooling gap on the horizontal plane is vortex-shaped; the ends of adjacent fiber paper strips in two adjacent layers of curtain tubes that are close to each other are fixedly connected.

[0008] The rotating assembly is used to drive the wet curtain to rotate around the axis of the cylinder.

[0009] The spray assembly includes multiple water spray pipes; the multiple water spray pipes are distributed inside the wet curtain along the circumference of the shell; the water spray pipe axes are arranged up and down, and multiple atomizing nozzles are evenly distributed on the upper and lower parts of the water spray pipes; the spray direction of the atomizing nozzle is arranged along the radial direction of the cylinder.

[0010] The negative pressure suction component is arranged at the air outlet, and is used to generate negative pressure at the air inlet, so that the air to be cooled passes through the air inlet through the wet curtain and is cooled before being discharged from the air outlet. During cooling, the rotating assembly drives the wet curtain to rotate along the spiral deflection of the cooling gap. This vortex-shaped cooling gap assists the negative pressure suction assembly, increasing the amount of air entering the wet curtain. The atomizing nozzle sprays water radially toward the wet curtain. Upon impact, the mist further atomizes and disperses, wetting the fiber strips on the inner roller of the wet curtain. Some of the mist condenses into droplets, which, driven by centrifugal force, pass from the inner roller to the outer roller, wetting the fiber strips on the outer roller, increasing humidity. Excess water droplets flow back along the fiber strips to the water tank. When the mist encounters air passing from the outer roller to the inner roller, it cools the air through evaporation and carries dust from the air away from the wet curtain under centrifugal force. This shortens the dust's path out of the wet curtain and prevents dust from settling beneath it, ensuring effective cooling. The dust-carrying water then strikes the mesh and flows down along it. The mesh can be removed and cleaned periodically.

[0011] Furthermore, the rotating assembly is arranged on the inner side of the wet curtain, including a mounting ring and a power structure; there are two mounting rings coaxially distributed above and below; a connecting rod is fixedly connected between the two mounting rings; mounting grooves are provided on the end faces of the two mounting rings close to each other; the upper and lower ends of the wet curtain are inserted into the mounting grooves; the mounting ring below and the water tank rotate in coordination; the power structure is used to drive the mounting ring to drive the wet curtain to rotate.

[0012] Furthermore, the power structure includes a mounting plate and a power motor; the mounting plate is arranged on the inner side of the lower mounting ring and is above the water tank; a mounting shaft with a vertical axis is fixedly connected between the mounting plate and the water tank; the power motor is arranged at the axis of the wet curtain; the output shaft of the power motor is arranged vertically; the power motor is fixed on the mounting plate; a center wheel, planetary gears, and a gear ring are provided between the mounting plate and the water tank; the gear ring is coaxially fixed on the inner side wall of the lower mounting ring; the center wheel is arranged on the inner side of the gear ring; the center wheel and the output shaft of the power motor are fixedly connected; the planetary gears are rotatably mounted on the mounting shaft; the planetary gears and the gear ring are meshed for transmission; the planetary gears and the center wheel are meshed for transmission.

[0013] Furthermore, an upper through groove is formed on the lower groove wall of the mounting groove on the lower mounting ring; a lower through groove is formed on the water tank; and the lower through groove and the upper through groove are connected to facilitate excess water droplets to flow back to the water tank along the fiber paper strip.

[0014] Furthermore, the spray assembly also includes a water supply structure; the water supply structure is used to press the water in the water tank into the water spray pipe.

[0015] Furthermore, the water supply structure includes a water pump and an annular pipe. The annular pipe is located within the cylinder and above the wet curtain. The annular pipe is coaxially fixed to the upper end of the cylinder. The annular pipe is connected to the upper end of the water spray pipe. The water pump is located within the water tank, and the water pump outlet is connected to the annular pipe via the water supply pipe. The annular pipe ensures that the water pressure of the water sprayed from the water spray pipe does not decrease as the height of the water spray pipe increases, ensuring that the sprayed water is uniformly directed toward the wet curtain.

[0016] Furthermore, a frame is fixed on the water inlet of the water pump; and a filter element is fixed on the frame, which is used to filter the water pumped from the water tank into the water spray pipe.

[0017] Furthermore, the negative pressure suction assembly includes an impeller; the impeller is rotatably installed in the air outlet; a suction motor is provided below the impeller; the suction motor is provided inside the wet curtain; and the suction motor is fixed on the cylinder.

[0018] Furthermore, the mesh includes a mesh frame and spun yarn; the mesh frame is a rectangular elastic frame; the spun yarn and the mesh frame are fixed; an upper flange is provided at the upper end of the cylinder; an upper retaining groove is provided at the lower end of the upper flange; a convex ring is fixed at the upper end of the water tank; the convex ring is sleeved on the outer side of the cylinder; the cross-section of the convex ring is a trapezoid with the small end facing upward; a lower retaining groove is provided at the upper end of the convex ring; the mesh frame is bent into a cylindrical shape, the upper end of the mesh frame is engaged with the upper retaining groove, and the lower end of the mesh frame is engaged with the lower retaining groove; a recovery hole is provided on the water tank; the recovery hole is located between the cylinder and the convex ring. The recovery hole is used to recover water flowing down the mesh into the water tank.

[0019] Furthermore, a universal wheel is fixed to the lower end of the water tank.

[0020] The present invention has the following beneficial effects: 1. When cooling air, the rotating assembly drives the wet curtain to rotate along the vortex-shaped spiral deflection direction of the cooling gap. The vortex-shaped cooling gap assists the negative pressure suction assembly to increase the air flow entering the wet curtain. The atomizing nozzle sprays water toward the wet curtain along the radial direction of the cylinder. After the water mist hits the wet curtain, it is further atomized and dispersed, wetting the fiber paper strips on the inner curtain tube of the wet curtain. Part of the water mist condenses into water droplets, which, driven by centrifugal force, pass from the inner curtain tube to the outer curtain tube, wetting the fiber paper strips on the outer curtain tube, increasing the humidity. Excess water droplets flow back to the water tank along the fiber paper strips. When part of the water mist encounters air passing from the outside of the wet curtain to the inside of the wet curtain, it cools the air through evaporation and carries dust in the air away from the wet curtain under the action of centrifugal force. This shortens the dust's path out of the wet curtain and prevents dust from accumulating below the wet curtain, thus ensuring the air cooling effect. The dust-carrying water hits the mesh and flows down along the mesh. Remove the mesh and clean it from time to time.

[0021] 2. The wet curtain is set to a cylindrical shape to avoid dead corners of air inlet. The outside air can enter the cylinder from all directions on the circumference of the cylinder to cool down, thereby improving the air cooling efficiency.

[0022] 3. The vortex-shaped cooling gap increases the residence time of air passing through the wet curtain while keeping the ventilation volume and the space occupancy of the wet curtain unchanged, so that the air can fully exchange heat in the process of passing through the wet curtain, thereby improving the cooling efficiency.

[0023] 4. When the equipment is turned off, the spray component stops spraying water, the negative pressure suction component continues to draw air, and the wet curtain continues to rotate. The centrifugal force is used to quickly throw out the water in the wet curtain, and the negative pressure suction component is used to allow air to continue to pass through the cooling gap to dry the wet curtain and prevent the growth of bacteria and mold.

[0024] 5. At regular intervals, the spray assembly continues to spray water, the negative pressure suction assembly stops working, and the rotating assembly drives the wet curtain to rotate in the reverse direction and then in the forward direction, thereby repeatedly washing the dust on the two paper surfaces of the fiber paper strips, so that the wet curtain remains clean and its service life is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A structural schematic diagram of an embodiment of a movable industrial air cooler of the present invention; Figure 2 This is a state diagram of a movable industrial air cooler in an embodiment of the present invention when the lower mesh is removed; Figure 3 A cross-sectional view of an embodiment of a mobile industrial air cooler of the present invention; Figure 4 A partial schematic diagram of a wet curtain of an embodiment of a movable industrial air cooler of the present invention; Figure 5 A partial cross-sectional view of a wet curtain of an embodiment of a movable industrial air cooler of the present invention; Figure 6 A top view of a wet curtain of an embodiment of a movable industrial air cooler of the present invention; Figure 7 A schematic diagram of a wet curtain and a mounting ring of an embodiment of a movable industrial air cooler of the present invention; Figure 8 A schematic diagram of a power structure of an embodiment of a mobile industrial air cooler of the present invention; Figure 9 A schematic diagram of adjacent fiber paper strips in adjacent curtain cylinders of an embodiment of a movable industrial air cooler of the present invention; Figure 10 This is a schematic diagram of adjacent fiber paper strips in the same curtain drum of an embodiment of a movable industrial air cooler of the present invention.

[0027] In the figure: 100, cylinder; 110, air outlet; 120, air inlet; 200, water tank; 210, recovery hole; 220, lower through groove; 230, universal wheel; 300, wet curtain; 310, fiber paper strip; 320, cooling gap; 400, mesh; 510, mounting ring; 511, upper through groove; 520, mounting plate; 521, power motor; 522, mounting shaft; 523, center wheel; 524, planetary gear; 525, gear ring; 610, spray pipe; 630, water pump; 631, filter element; 640, annular tube; 710, suction motor; 720, impeller. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] An embodiment of a mobile industrial air cooler of the present invention is as follows Figures 1 to 10 As shown, it includes a cylinder 100, a wet curtain 300, a rotating component, a spray component, and a negative pressure suction component.

[0030] The cylinder 100 is arranged vertically along its axis, with an air outlet 110 at its upper end and a water tank 200 fixed to its lower end. Universal wheels 230 are fixed to the lower end of the water tank 200. Multiple air inlets 120 are evenly distributed along the sidewalls of the cylinder 100. A cylindrical mesh 400 is fitted over the cylinder 100. The mesh 400 comprises a mesh frame and spun yarn; the mesh frame is a rectangular elastic frame, and the spun yarn and mesh frame are fixed to each other. An upper flange is provided at the upper end of the cylinder 100, with an upper retaining groove at its lower end. A convex ring is fixed to the upper end of the water tank 200, which is sleeved onto the outer surface of the cylinder 100. The convex ring has a trapezoidal cross-section with the smaller end facing upwards, and a lower retaining groove is provided at its upper end. The mesh frame is bent into a cylindrical shape, with its upper end snapping into the upper retaining groove and its lower end snapping into the lower retaining groove. A recovery hole 210 is provided in the water tank 200, located between the cylinder 100 and the convex ring. The recovery hole 210 is used to recover the water flowing down the mesh 400 into the water tank 200 .

[0031] The wet curtain 300 is arranged in the cylinder 100; the wet curtain 300 includes a multi-layer curtain tube; the multi-layer curtain tube is coaxial and radially distributed along the cylinder 100; the curtain tube includes a plurality of fiber paper strips 310; the plurality of fiber paper strips 310 are arranged in a cylindrical shape; the fiber paper strips 310 extend up and down in a wavy shape; the crests of the fiber paper strips 310 extend up and down tilted compared to the horizontal direction, and the crests of adjacent fiber paper strips 310 in the same curtain tube are tilted in opposite directions; the crests of adjacent fiber paper strips 310 in the same curtain tube are fixedly connected; adjacent fiber paper strips 310 in the same curtain tube form a cooling gap 320; the projection of the cooling gap 320 on the horizontal plane is vortex-shaped; the adjacent fiber paper strips 310 in two adjacent layers of curtain tubes are fixedly connected at their ends close to each other.

[0032] The rotating assembly is used to drive the wet curtain 300 to rotate around the axis of the cylinder 100. Located inside the wet curtain 300, the rotating assembly includes a mounting ring 510 and a power structure. Two mounting rings 510 are coaxially arranged above and below. A connecting rod is fixedly connected between the two mounting rings 510. Mounting grooves are defined on the adjacent end faces of the two mounting rings 510. The upper and lower ends of the wet curtain 300 are inserted into the mounting grooves. The lower mounting ring 510 and the water tank 200 rotate in conjunction. The power structure drives the mounting rings 510 to rotate the wet curtain 300. The power structure includes a mounting plate 520 and a power motor 521; the mounting plate 520 is arranged on the inner side of the lower mounting ring 510 and is above the water tank 200; a mounting shaft 522 with a vertical axis is fixedly connected between the mounting plate 520 and the water tank 200; the power motor 521 is arranged at the axis of the wet curtain 300; the output shaft of the power motor 521 is arranged vertically; the power motor 521 is fixed on the mounting plate 520; a center wheel 523, planetary wheels 524, and a gear ring 525 are provided between the mounting plate 520 and the water tank 200; the gear ring 525 is coaxially fixed on the inner wall of the lower mounting ring 510; the center wheel 523 is arranged on the inner side of the gear ring 525; the center wheel 523 and the output shaft of the power motor 521 are fixedly connected; the planetary wheels 524 are rotatably mounted on the mounting shaft 522; the planetary wheels 524 and the gear ring 525 are engaged for transmission; the planetary wheels 524 and the center wheel 523 are engaged for transmission. An upper through groove 511 is formed on the lower wall of the mounting groove of the mounting ring 510 below. A lower through groove 220 is formed on the water tank 200. The lower through groove 220 is connected to the upper through groove 511 to facilitate the return of excess water droplets along the fiber paper strip 310 to the water tank 200.

[0033] The spray assembly includes multiple water spray pipes 610 distributed along the circumference of the housing inside the wet curtain 300. The spray pipes 610 are arranged vertically and axially, and are equipped with multiple atomizing nozzles evenly distributed above and below the spray pipes 610. The atomizing nozzles spray in the radial direction of the cylinder 100. The spray assembly also includes a water supply structure for pressurizing water from the water tank 200 into the water spray pipes 610. The water supply structure includes a water pump 630 and an annular pipe 640. The annular pipe 640 is located within the cylinder 100 and above the wet curtain 300. The annular pipe 640 is coaxially fixed to the upper end of the cylinder 100 and communicates with the upper ends of the water spray pipes 610. The water pump 630 is located within the water tank 200, and the water outlet of the water pump 630 communicates with the annular pipe 640 through the water supply pipe. The annular tube 640 ensures that the pressure of the water sprayed from the spray pipe 610 does not decrease as the height of the spray pipe 610 increases, ensuring that the sprayed water is directed toward the wet curtain 300. A frame is fixed to the water inlet of the water pump 630; a filter element 631 is fixed to the frame to filter the water pumped from the water tank 200 into the spray pipe 610.

[0034] The negative pressure suction assembly is located at the air outlet 110 and is used to generate negative pressure at the air inlet 120. The negative pressure suction assembly includes an impeller 720 rotatably mounted within the air outlet 110; a suction motor 710 is located below the impeller 720; the suction motor 710 is located inside the wet curtain 300; and the suction motor 710 is fixed to the cylinder 100. The suction motor 710 is fixedly connected to the power motor 521 via a connecting post. The suction motor 710 drives the impeller 720 to rotate, generating negative pressure at the air inlet 120. This causes the air to be cooled to pass through the wet curtain 300 through the air inlet 120, where it is cooled and then discharged from the air outlet 110. When cooling the air, the rotating component drives the wet curtain 300 to rotate along the vortex spiral deflection direction of the cooling gap 320. The vortex cooling gap 320 assists the negative pressure suction component to increase the air intake into the inside of the wet curtain 300. The atomizing nozzle sprays water toward the wet curtain 300 along the radial direction of the cylinder 100. After the water mist collides with the wet curtain 300, it is further atomized and dispersed, and wets the fiber paper strip 310 of the inner curtain tube of the wet curtain 300. After part of the water mist condenses into water droplets, it is driven by centrifugal force and flows outward from the inner curtain tube of the wet curtain 300. The passage of the layered curtain tube wets the fiber paper strip 310 of the outer curtain tube of the wet curtain 300, increasing the humidity. Excess water droplets flow back along the fiber paper strip 310 to the water tank 200. When some of the water mist encounters air passing from the outside of the wet curtain 300 to the inside, it cools the air through evaporation and carries dust in the air away from the wet curtain 300 under the action of centrifugal force. This shortens the dust's path out of the wet curtain 300 and prevents dust from accumulating beneath the wet curtain 300, ensuring the air cooling effect. The dust-carrying water then hits the mesh 400 and flows down along it. The mesh 400 can be removed periodically for cleaning.

[0035] In conjunction with the above embodiments, the operating principle and process of the present invention are as follows: During operation, the water pump 630, power motor 521, and suction motor 710 are activated. The suction motor 710 drives the impeller 720 to rotate, creating a negative pressure at the air inlet 120. This causes the air to be cooled to pass through the air inlet 120, through the wet curtain 300, and then be discharged from the air outlet 110. During the cooling process, the power motor 521 drives the mounting ring 510 to rotate via the center gear 523, planetary gears 524, and gear ring 525. The mounting ring 510 drives the wet curtain 300 to rotate along the vortex spiral deflection direction of the cooling gap 320. The vortex cooling gap 320 assists the negative pressure suction component to increase the air intake into the inside of the wet curtain 300. The atomizing nozzle sprays water toward the wet curtain 300 along the radial direction of the cylinder 100. After the water mist collides with the wet curtain 300, it is further atomized and dispersed, and wets the fiber paper strip 310 of the inner curtain tube of the wet curtain 300. After part of the water mist condenses into water droplets, it is driven by centrifugal force and flows from the inner curtain tube of the wet curtain 300 to the outer curtain tube. The mist passes through the fiber paper strip 310 on the outer roller of the wet curtain 300, increasing the humidity. Excess water droplets flow back along the fiber paper strip 310 to the water tank 200. When some of the mist encounters air passing from the outside of the wet curtain 300 to the inside, it cools the air through evaporation. Centrifugal force also pulls dust from the air away from the wet curtain 300, shortening the dust's path out of the wet curtain 300 and preventing dust from settling beneath it, ensuring effective air cooling. The dust-carrying water then flows down the mesh 400. The mesh 400 can be removed periodically for cleaning.

[0036] When the equipment is turned off, the spray assembly stops spraying water, the negative pressure suction assembly continues to draw air, and the wet curtain 300 continues to rotate, using centrifugal force to quickly throw out the water in the wet curtain 300, and using the negative pressure suction assembly to allow air to continue to pass through the cooling gap 320 to dry the wet curtain 300 and prevent the growth of bacteria and mold.

[0037] At regular intervals, the spray assembly continues to spray water, the negative pressure suction assembly stops working, and the rotating assembly drives the wet curtain 300 to rotate in the reverse direction and then in the forward direction, thereby repeatedly washing the dust on the two paper surfaces of the fiber paper strip 310, so that the wet curtain 300 remains clean and its service life is increased.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A portable industrial air cooler, characterized by: include: The cylinder is arranged with an axis up and down, with an air outlet at the upper end and a water tank fixed at the lower end; multiple air inlets are evenly distributed on the side wall of the cylinder; a cylindrical mesh is provided on the outer cover of the cylinder; The wet curtain is arranged in a cylinder; the wet curtain comprises a multi-layer curtain tube; the multi-layer curtain tubes are coaxial and radially distributed along the cylinder; the curtain tube comprises a plurality of fiber paper strips; the plurality of fiber paper strips form a cylindrical shape; the fiber paper strips extend up and down in a wavy shape; the wave crests of the fiber paper strips extend up and down with respect to the horizontal direction, and the wave crests of adjacent fiber paper strips in the same curtain tube are inclined in opposite directions; the wave crests of adjacent fiber paper strips in the same curtain tube are fixedly connected; adjacent fiber paper strips in the same curtain tube form a cooling gap; the projection of the cooling gap on the horizontal plane is vortex-shaped; the adjacent fiber paper strips in two adjacent layers of curtain tubes are fixedly connected at their ends close to each other; Rotating assembly, used to drive the wet curtain to rotate around the axis of the cylinder; The spray assembly includes a plurality of water spray pipes; the plurality of water spray pipes are distributed along the circumference of the shell inside the wet curtain; the water spray pipe axis is arranged up and down, and a plurality of atomizing nozzles are evenly distributed on the upper and lower sides of the water spray pipe; the spray direction of the atomizing nozzle is arranged along the radial direction of the cylinder; The negative pressure suction component is arranged at the air outlet and is used to generate negative pressure at the air inlet.

2. The portable industrial air cooler according to claim 1, characterized in that: The rotating assembly is located on the inner side of the wet curtain and includes a mounting ring and a power structure. There are two mounting rings coaxially distributed above and below. A connecting rod is fixedly connected between the two mounting rings. Mounting grooves are provided on the end faces of the two mounting rings close to each other. The upper and lower ends of the wet curtain are inserted into the mounting grooves. The mounting ring below rotates in coordination with the water tank. The power structure is used to drive the mounting ring to drive the wet curtain to rotate.

3. The portable industrial air cooler according to claim 2, characterized in that: The power structure includes a mounting plate and a power motor; the mounting plate is arranged on the inner side of the lower mounting ring and is above the water tank; a mounting shaft with a vertical axis is fixedly connected between the mounting plate and the water tank; the power motor is arranged at the axis of the wet curtain; the output shaft of the power motor is arranged vertically; the power motor is fixed on the mounting plate; a center wheel, planetary wheels and a gear ring are provided between the mounting plate and the water tank; the gear ring is coaxially fixed on the inner side wall of the lower mounting ring; the center wheel is arranged on the inner side of the gear ring; the center wheel and the output shaft of the power motor are fixedly connected; the planetary wheels are rotatably mounted on the mounting shaft; the planetary wheels and the gear ring are meshed for transmission; the planetary wheels and the center wheel are meshed for transmission.

4. The portable industrial air cooler according to claim 3, characterized in that: An upper through groove is provided on the lower groove wall of the installation groove on the lower installation ring; a lower through groove is provided on the water tank; and the lower through groove is communicated with the upper through groove.

5. The portable industrial air cooler according to claim 4, characterized in that: The spray assembly also includes a water supply structure; the water supply structure is used to press the water in the water tank into the water spray pipe.

6. The portable industrial air cooler according to claim 5, characterized in that: The water supply structure includes a water pump and a ring pipe; the ring pipe is arranged in the cylinder and above the wet curtain; the ring pipe is coaxially fixed to the upper end of the cylinder; the ring pipe is connected to the upper end of the water spray pipe; the water pump is arranged in the water tank, and the water outlet of the water pump is connected to the ring pipe through the water supply pipe.

7. The portable industrial air cooler according to claim 6, characterized in that: A frame is fixed on the water inlet of the water pump; a filter element is fixed on the frame.

8. The portable industrial air cooler according to claim 3, characterized in that: The negative pressure suction component includes an impeller; the impeller is rotatably installed in the air outlet; a suction motor is provided below the impeller; the suction motor is provided inside the wet curtain; and the suction motor is fixed on the cylinder.

9. The portable industrial air cooler according to claim 1, characterized in that: The mesh includes a mesh frame and spun yarn; the mesh frame is a rectangular elastic frame; the spun yarn and the mesh frame are fixed; an upper flange is provided at the upper end of the cylinder; an upper clamping groove is provided at the lower end of the upper flange; a convex ring is fixed at the upper end of the water tank; the convex ring is sleeved on the outside of the cylinder; the cross-section of the convex ring is a trapezoid with the small end facing upward; a lower clamping groove is provided at the upper end of the convex ring; the mesh frame is bent into a cylindrical shape, the upper end is clamped into the upper clamping groove, and the lower end is clamped into the lower clamping groove; a recovery hole is provided on the water tank; the recovery hole is provided between the cylinder and the convex ring.

10. A portable industrial air cooler according to any one of claims 1 to 9, characterized in that: A universal wheel is fixed to the lower end of the water tank.

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