A high-temperature workshop high-efficiency cooling and ventilation device

Abstract

The utility model relates to the technical field of workshop cooling ventilation, specifically is a kind of high efficient cooling ventilation device for high-temperature workshop, including air inlet cover, the top of air inlet cover is fixed with air outlet cover, the inside of air inlet cover and air outlet cover is provided with cooling ventilation mechanism, cooling ventilation mechanism includes negative pressure fan, air inlet, water storage tank, spray frame and mixing cavity, the central position of air inlet cover inside is equipped with negative pressure fan, the both sides of air inlet cover inside are all set up mixing cavity, the bottom position of mixing cavity inner wall is set up air inlet, the inside of air outlet cover is fixed with water storage tank, the top position of mixing cavity inside is equipped with spray frame. The utility model not only improves the cooling efficiency of workshop when cooling ventilation device is used, avoids the phenomenon that dust screen surface is blocked when cooling ventilation device is used.

Description

Technical Field

[0001] This utility model relates to the field of workshop cooling and ventilation technology, specifically a high-efficiency cooling and ventilation device for high-temperature workshops. Background Technology

[0002] In production workshops, machines are typically run for extended periods to achieve the required output. During operation, these machines generate heat at their drive ends. This prolonged operation leads to a significant accumulation of heat at the drive ends, which, through heat conduction with the air, causes the temperature in the factory workshop to rise, necessitating cooling and ventilation.

[0003] A search revealed a utility model patent with patent number 202322795440.8 entitled "A Workshop Ventilation and Cooling Device". The patent includes a wind box body, a wind box frame on the outside of the wind box body, an adjusting component on the inside of the wind box body, a cooling component on the inside of the wind box body, the cooling component on both sides of the adjusting component, a dust filter component on the top of the adjusting component, an air inlet on the wind box frame, the air inlet being fixedly installed at the bottom of the wind box body, and a fixing seat being fixedly installed at the top of the wind box body.

[0004] Research and analysis revealed that in this ventilation and cooling device, the distance between the ventilation base driving the supply fan and the air inlet gradually decreases. When the supply fan is driven again at the same speed, it can draw more air into the main body of the air box. This allows more fresh air to be delivered into the workshop through the air duct, thus accelerating the air circulation rate inside the workshop. However, there are still some drawbacks: because the air inlet is located below the fan and the water mist is also located below the fan, the fan draws in dry air and water mist separately and mixes them. The mixing time is short, which can easily lead to higher air temperatures entering the device and affect the cooling efficiency of the ventilation and cooling system. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency cooling and ventilation device for high-temperature workshops, so as to solve the problem of low cooling efficiency of the cooling and ventilation devices mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency cooling and ventilation device for high-temperature workshops, comprising an air inlet hood, a control button mounted on the surface of the air inlet hood, an air outlet hood fixed to the top of the air inlet hood, and a cooling and ventilation mechanism arranged inside the air inlet hood and the air outlet hood. The cooling and ventilation mechanism includes a negative pressure fan, an air inlet, a water storage tank, a spray frame, and a mixing chamber. A negative pressure fan is installed at the center of the air inlet hood, and the input end of the negative pressure fan is electrically connected to the output end of the control button. Mixing chambers are provided on both sides of the air inlet hood, and an air inlet is provided at the bottom of the inner wall of the mixing chamber. A water storage tank is fixed inside the air outlet hood, and a spray frame is installed at the top of the mixing chamber. The input end of the spray frame is electrically connected to the output end of the control button, and one end of the spray frame is connected to the water storage tank.

[0007] Preferably, the cooling and ventilation mechanism further includes an air outlet, an air guide, a dustproof net, and an exhaust vent. Air outlets are embedded at the edges of both sides of the water storage tank. The surface of the air inlet is covered with a dustproof net, which is detachably connected to the air inlet hood by screws. An air guide is provided on the inner wall of one side of the mixing chamber. The air guide is located inside the air inlet and is connected to the interior of the air inlet hood. Exhaust vents are provided on the surface of the top of the air inlet hood.

[0008] Preferably, the air outlet hood is equipped with a multi-cooling mechanism, which includes a drain pipe, a multi-cooling component, and a one-way valve. Drain pipes are fixed at the bottom of both sides of the air outlet hood, with one end of the drain pipe extending below the dustproof net. A one-way valve is installed on the surface of the drain pipe, and the input end of the one-way valve is electrically connected to the output end of the control button. A drain pipe is installed inside the air inlet hood, and the drain pipe is located between the air inlet hood and the water storage tank.

[0009] Preferably, the multiple cooling mechanism further includes a spray head, which is installed on both sides of the bottom of the water tank. The input end of the spray head is electrically connected to the output end of the control button, and the spray head is located between the multiple cooling component and the air outlet pipe.

[0010] Preferably, the multiple cooling assembly includes a baffle, a pressure plate, a telescopic spring, and guide rods. The baffle is fixed to the top of the air inlet hood and is located outside the exhaust port. The surfaces on both sides of the baffle are inclined. A pressure plate is provided above the baffle. The bottom surface of the pressure plate has an arc-shaped structure. Guide rods are fixed to both sides of the top of the baffle. One end of the guide rod passes through the pressure plate and is fixedly connected to the bottom of the water storage tank. A telescopic spring is sleeved on the outer side of the top of the guide rod. The surfaces at both ends of the telescopic spring are fixedly connected to the surfaces of the water storage tank and the pressure plate, respectively.

[0011] Preferably, the multiple cooling assembly further includes a sponge block, a limiting sleeve, and absorbent cotton strips. Sponge blocks are attached to both sides of the bottom of the pressure plate via Velcro. The bottom of the sponge block is attached to the bottom of the baffle via Velcro. Absorbent cotton strips are inserted into both sides of the bottom of the water tank. One end of each absorbent cotton strip extends to the top of the interior of the sponge block. A limiting sleeve is fitted onto the outer side of each absorbent cotton strip. One end of the limiting sleeve penetrates the pressure plate and extends to the top of the interior of the sponge block. The limiting sleeve is detachably connected to the water tank via a threaded ring. An inspection door is installed on the surface of the air outlet hood, located on one side of the multiple cooling assembly.

[0012] Preferably, a cleaning mechanism is provided at the bottom of the air inlet hood. The cleaning mechanism includes a rotating frame and a cleaning brush. The rotating frame is rotatably connected at the center of the bottom of the air inlet hood. The central axis of the rotating frame coincides with the central axis of the negative pressure fan. The rotating frame has a T-shaped structure. One end of the rotating frame extends into the interior of the air inlet hood and is fixedly connected to the rotating shaft of the negative pressure fan. Cleaning brushes are respectively installed at the other two ends of the rotating frame. The surface of the cleaning brush is in close contact with the surface of the dustproof net.

[0013] Preferably, the air outlet hood has an L-shaped structure, with mounting ears welded to one end of each air outlet hood, and a cover frame covering one end of the air outlet hood. The cover frame is detachably connected to the air outlet hood by screws, and an activated carbon layer is placed between the air outlet hood and the cover frame. The surface of the activated carbon layer is tightly attached to the inner walls of the air outlet hood and the cover frame, respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-temperature workshop high-efficiency cooling and ventilation device is equipped with a cooling and ventilation mechanism, a multiple cooling mechanism, and a cleaning mechanism. When the negative pressure fan is working, the external air is filtered through the dust screen and enters the mixing chamber through the air inlet. At this time, cooling water enters the water storage tank through the water inlet pipe and is sprayed through the spray frame to form water mist inside the mixing chamber. This water mist comes into contact with and mixes with the air entering the mixing chamber, thus cooling the air. The cooled air enters the air inlet hood through the air guide and is discharged through the air outlet, so that the air drawn in by the cooling and ventilation device is air mixed with water mist, resulting in a lower temperature of the drawn-in air.

[0015] At this point, the air discharged through the exhaust vent pushes the pressure plate, causing it to move upwards along the guide rod. Because the bottom of the pressure plate has an arc-shaped structure, when air comes into contact with it, a small amount of moisture in the air adheres to the surface of the pressure plate, forming water droplets that slide down the inner wall of the pressure plate and are absorbed by the sponge block. Since the sponge block is located outside the exhaust vent and in contact with the inner walls on both sides of the air outlet hood, the air discharged through the exhaust vent must pass through the sponge block. Simultaneously, because some water enters the water tank during operation, it permeates into the interior of the sponge block through the absorbent cotton strips, keeping the sponge block moist. This allows for further cooling of the air passing through the sponge block. Furthermore, the sponge block can intercept water-insoluble solid foreign objects in the air, improving air quality. The air passing through the sponge block... Air enters below the spray head and mixes with the water mist sprayed from the spray head for further cooling. The cooled air is then discharged through the air outlet pipe. Simultaneously, the sponge block can be removed and replaced by opening the inspection door and using the Velcro at both ends. Next, the limiting sleeve is rotated to separate it from the water tank. Then, the limiting sleeve and absorbent strip are pulled down to remove them. A new absorbent strip is then inserted into the inside of the limiting sleeve, and one end of the absorbent strip is inserted into the through-hole at the bottom of the water tank where it connects to the absorbent strip. Finally, the limiting sleeve is rotated to tighten and secure it. This multiple cooling function of the cooling ventilation device improves the cooling efficiency of the workshop during operation.

[0016] The cold air discharged through the air duct enters the activated carbon layer along the air hood. After being filtered by the activated carbon layer, it enters the workshop through the cover frame. At the same time, an exhaust fan is installed on the side of the workshop opposite to the cover frame to exhaust the hot air in the workshop, cool and ventilate the workshop. After a period of time, the screws on the surface of the cover frame can be loosened in the workshop, the cover frame can be removed, and the activated carbon layer can be taken out and replaced.

[0017] Meanwhile, when air passes through the dustproof net and comes into contact with the water mist, some of the dust floating in the air mixes with the water mist, increasing in weight and adhering to the surface of the dustproof net. At this time, the rotation of the negative pressure fan drives the rotating frame to rotate synchronously, causing the cleaning brush to clean the surface of the dustproof net, preventing dust from clogging the small holes on the surface of the dustproof net. At the same time, the water sprayed by the spray frame is discharged to the surface of the dustproof net through the drain pipe, which can rinse the surface of the dustproof net and prevent outside air from directly entering the air outlet hood under the action of the one-way valve. The water sprayed by the spray frame passes directly through the dustproof net. After being rinsed, the dustproof net falls into the water collection device below. When the cooling and ventilation device stops working, the negative pressure fan stops rotating. At this time, the pressure plate loses its thrust and moves downward to reset under the elastic force of the telescopic spring. When the pressure plate moves downward, it squeezes the sponge block, squeezing out the water inside the sponge block and draining it along the baffle into the drain pipe. The water is then discharged through the drain pipe, rinsing the dustproof net and achieving the cleaning function of the cooling and ventilation device on the surface of the dustproof net, thereby avoiding the phenomenon of clogging of the dustproof net surface when the cooling and ventilation device is in use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model; Figure 3 This is a partially enlarged structural schematic diagram of the present invention; Figure 4 This is an enlarged structural schematic diagram of the secondary cooling component of this utility model.

[0019] In the diagram: 1. Air inlet hood; 11. Control button; 12. Inspection door; 13. Air outlet hood; 14. Cover frame; 15. Activated carbon layer; 2. Cooling and ventilation mechanism; 21. Negative pressure fan; 22. Air inlet; 23. Water storage tank; 24. Air outlet duct; 25. Spray rack; 26. Air guide; 27. Dustproof net; 28. Exhaust vent; 29. ​​Mixing chamber; 3. Multiple cooling mechanism; 31. Drain pipe; 32. Multiple cooling component; 321. Baffle; 322. Pressure plate; 323. Sponge block; 324. Limiting sleeve; 325. Absorbent cotton strip; 326. Telescopic spring; 327. Guide rod; 33. One-way valve; 34. Spray head; 4. Cleaning mechanism; 41. Rotating frame; 42. Cleaning brush. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0021] The structure of the high-efficiency cooling and ventilation device for high-temperature workshops provided by this utility model is as follows: Figures 1 to 4As shown, the device includes an air inlet hood 1, on the surface of which a control button 11 is installed. The control button 11 can be of the LA series. An air outlet hood 13 is fixed to the top of the air inlet hood 1. The air outlet hood 13 has an L-shaped structure. One end of the air outlet hood 13 is welded with mounting ears to facilitate the installation of the cooling and ventilation device at the air inlet opening on the outer wall of the workshop. At the same time, a water collection device is placed at the bottom of the device to facilitate the collection of water discharged by the cooling and ventilation device. The collected water can be discharged to a water treatment device for treatment and recycling or directly discharged into the sewer. One end of the air outlet hood 13 is covered with a cover frame 14. The cover frame 14 is detachably connected to the air outlet hood 13 by screws. An activated carbon layer 15 is placed between the air outlet hood 13 and the cover frame 14. The surface of the activated carbon layer 15 is tightly attached to the inner walls of the air outlet hood 13 and the cover frame 14, so that after the cooling and ventilation device is installed, the cover frame 14 passes through the air inlet of the workshop and is located inside the workshop, which facilitates the disassembly of the cover frame 14.

[0022] The air inlet hood 1 and the air outlet hood 13 are equipped with a cooling and ventilation mechanism 2. The cooling and ventilation mechanism 2 includes a negative pressure fan 21, an air inlet 22, a water storage tank 23, a spray rack 25, and a mixing chamber 29. The negative pressure fan 21 is installed at the center of the air inlet hood 1. The negative pressure fan 21 can be a Y series model. The surface of the negative pressure fan 21 is equipped with waterproof components to prevent damage from contact with water-containing air. The input end of the negative pressure fan 21 is electrically connected to the output end of the control button 11. The mixing chamber 29 is opened on both sides of the air inlet hood 1. The air inlet hood 29 is opened at the bottom of the inner wall of the mixing chamber 29. The air outlet hood 13 is fixed with a water storage tank 23. The surface of the water storage tank 23 is equipped with a water inlet pipe for water intake. One end of the water inlet pipe extends to the outside of the air outlet hood 13 and is fixed with an installation head for easy connection with the cooling water inlet pipe. The spray rack 25 is installed at the top of the mixing chamber 29. The spray nozzles on the surface of the spray rack 25 can be of the SK series. The input end of the spray rack 25 is electrically connected to the output end of the control button 11. One end of the spray rack 25 is connected to the water storage tank 23. The cooling and ventilation mechanism 2 also includes an air outlet duct 24, an air guide 26, a dustproof net 27, and an exhaust vent 28. Air outlet ducts 24 are embedded at the edges on both sides of the water storage tank 23. The air outlet ducts 24 are not connected to the water storage tank 23. The surface of the air inlet 22 is covered with a dustproof net. 27. The dustproof net 27 is detachably connected to the air inlet hood 1 by screws. An air guide 26 is provided on the inner wall of one side of the mixing chamber 29. The air guide 26 is located inside the air inlet 22. The air guide 26 is connected to the inside of the air inlet hood 1, so that the air mixed with water mist can be drawn into the air inlet hood 1 by the negative pressure fan 21. An exhaust port 28 is provided on the surface at the top of the air inlet hood 1. The exhaust port 28 is close to the negative pressure fan 21, so that air can enter the inside of the sponge block 323.

[0023] When in use, the negative pressure fan 21 operates to filter outside air through the dust filter 27 and then enter the mixing chamber 29 through the air inlet 22. At this time, cooling water enters the water storage tank 23 through the water inlet pipe and is sprayed through the spray frame 25, forming water mist inside the mixing chamber 29. This water mist comes into contact with and mixes with the air entering the mixing chamber 29, cooling the air. The cooled air enters the air inlet hood 1 through the air guide 26 and is discharged through the air outlet 28, so that the air drawn in by the cooling ventilation device is air mixed with water mist, resulting in a lower temperature of the drawn-in air.

[0024] The air outlet hood 13 is equipped with a multi-stage cooling mechanism 3, which includes a drain pipe 31, a multi-stage cooling component 32, and a one-way valve 33. Drain pipes 31 are fixed at the bottom of both sides of the air outlet hood 13, with one end extending below the dustproof net 27 to facilitate the drainage of water from the sponge block 323 and spray head 34 onto the surface of the dustproof net 27 for rinsing. A one-way valve 33 is installed on the surface of the drain pipe 31, with its input electrically connected to the output of the control button 11 to prevent external air from directly entering the air outlet hood 13 through the drain pipe 31. A drain pipe 31 is also installed inside the air inlet hood 1, located between the air inlet hood 1 and the water storage tank 23. The multi-stage cooling mechanism 3 also includes a spray system. The spray head 34, which can be of the SK series, is installed on both sides of the bottom of the water storage tank 23. The input end of the spray head 34 is electrically connected to the output end of the control button 11. The spray head 34 is located between the multiple cooling component 32 and the air outlet pipe 24, which facilitates the spraying and cooling of the air after it passes through the sponge block 323. The surface of the air inlet hood 1 below the spray head 34 is fixed with an inclined guide seat to facilitate the water flow into the drain pipe 31. The multiple cooling component 32 includes a baffle 321, a pressure plate 322, a telescopic spring 326, and a guide rod 327. The top of the air inlet hood 1 is fixed with a baffle 321, which is located outside the air outlet 28. The surfaces on both sides of the baffle 321 are inclined to facilitate the surface of the sponge block 323. The water flows outwards from the baffle 321 to prevent it from entering the exhaust vent 28. A pressure plate 322 is installed above the baffle 321. The bottom surface of the pressure plate 322 has an arc-shaped structure, allowing water droplets adhering to its surface to slide off and be absorbed by the sponge block 323 after contact with air. The surfaces at both ends of the pressure plate 322 contact the inner wall of the exhaust hood 13, making it difficult for air to escape through the gap between the pressure plate 322 and the intake hood 1. Guide rods 327 are fixed on both sides of the top of the baffle 321. One end of the guide rod 327 passes through the pressure plate 322 and is fixedly connected to the bottom of the water tank 23, guiding the pressure plate 322 and facilitating its sliding up and down along the guide rod 327. An extension sleeve is fitted on the outer side of the top of the guide rod 327. The spring 326 is fixedly connected to the surfaces of the water tank 23 and the pressure plate 322 at both ends. The multiple cooling assembly 32 also includes a sponge block 323, a limiting sleeve 324, and absorbent cotton strips 325. The bottom sides of the pressure plate 322 are attached to the sponge block 323 with Velcro. The bottom of the sponge block 323 is attached to the bottom of the baffle 321 with Velcro, which facilitates the replacement of the sponge block 323. The surfaces of both ends of the sponge block 323 are in contact with the inner wall of the air outlet hood 13, making it difficult for air to escape through the gap between the sponge block 323 and the air inlet hood 1. The bottom sides of the water tank 23 are filled with absorbent cotton strips 325, one end of which extends to the top of the sponge block 323.A small amount of water inside the water storage tank 23 is allowed to permeate into the sponge block 323 through the absorbent cotton strip 325, thus wetting the sponge block 323. Simultaneously, because the cotton strip has a limited water absorption capacity, it prevents the sponge block 323 from absorbing too much water. A limiting sleeve 324 is fitted onto the outer side of the absorbent cotton strip 325. One end of the limiting sleeve 324 passes through the pressure plate 322 and extends to the top position inside the sponge block 323. The limiting sleeve 324 is detachably connected to the water storage tank 23 via a threaded ring. The limiting sleeve 324 is made of rigid material. The limiting sleeve 324 guides the absorbent cotton strip 325, ensuring it accurately enters or leaves the sponge block 323 when the pressure plate 322 moves up and down. This prevents the absorbent cotton strip 325 from deforming due to its softness and failing to penetrate the sponge block 323 when the pressure plate 322 is pushed upwards. An inspection door 12 is installed on the surface of the air outlet hood 13, located on one side of the multi-stage cooling assembly 32, facilitating easy access for replacing the sponge block 323 and the absorbent cotton strip 325.

[0025] In use, the air discharged through the exhaust vent 28 pushes the pressure plate 322, causing it to move upwards along the guide rod 327. Because the bottom of the pressure plate 322 has an arc-shaped structure, when air comes into contact with it, a small amount of moisture in the air adheres to the surface of the pressure plate 322, forming water droplets that slide down the inner wall of the pressure plate 322 and are absorbed by the sponge block 323. Since the sponge block 323 is located outside the exhaust vent 28 and in contact with the inner walls of both sides of the air outlet hood 13, the air discharged through the exhaust vent 28 must pass through the sponge block 323 before being discharged. Simultaneously, when water enters the water storage tank 23, some water permeates into the sponge block 323 through the absorbent cotton strip 325, keeping the sponge block 323 moist. This allows for further cooling of the air passing through the sponge block 323. Furthermore, the sponge block 323 can intercept water-insoluble solid foreign objects in the air, improving air quality. The air, after passing through the sponge block 323, enters below the spray head 34 and mixes with the water mist sprayed from the spray head 34 for further cooling. The cooled air is then discharged through the air outlet 24. Simultaneously, the sponge block 323 can be removed and replaced by opening the inspection door 12 and using the Velcro at both ends. Then, the limiting sleeve 324 is rotated to separate it from the water storage tank 23. Next, the limiting sleeve 324 and the absorbent cotton strip 325 are pulled down to remove them. A new absorbent cotton strip 325 is then inserted into the inside of the limiting sleeve 324, and one end of the absorbent cotton strip 325 is inserted into the through hole at the bottom of the water storage tank 23 where it connects to the absorbent cotton strip 325. Finally, the limiting sleeve 324 is rotated to tighten and fix it, thus realizing the multiple cooling function of the cooling ventilation device.

[0026] A cleaning mechanism 4 is provided at the bottom of the air inlet hood 1. The cleaning mechanism 4 includes a rotating frame 41 and a cleaning brush 42. The rotating frame 41 is rotatably connected at the center of the bottom of the air inlet hood 1. The central axis of the rotating frame 41 coincides with the central axis of the negative pressure fan 21. The rotating frame 41 has a T-shaped structure. One end of the rotating frame 41 extends into the interior of the air inlet hood 1 and is fixedly connected to the rotating shaft of the negative pressure fan 21. The other two ends of the rotating frame 41 are respectively equipped with cleaning brushes 42. The surface of the cleaning brushes 42 is in close contact with the surface of the dustproof net 27, so that the negative pressure fan 21 can drive the rotating frame 41 to rotate when it is working, so that the rotating frame 41 drives the cleaning brushes 42 to clean the surface of the dustproof net 27.

[0027] During use, when air passes through the dustproof net 27 and comes into contact with the water mist, some dust floating in the air mixes with the water mist, increasing in gravity and adhering to the surface of the dustproof net 27. At this time, the negative pressure fan 21 rotates, driving the rotating frame 41 to rotate synchronously, which in turn drives the cleaning brush 42 to clean the surface of the dustproof net 27, preventing dust from clogging the small holes on the surface of the dustproof net 27. At the same time, the water sprayed by the spray frame 25 is discharged to the surface of the dustproof net 27 through the drain pipe 31, which can rinse the surface of the dustproof net 27 and prevent external air from directly entering the air outlet hood 13 under the action of the one-way valve 33. After spraying, the water is discharged directly through the dustproof net 27. After rinsing the dustproof net 27, it falls into the water collection device below. When the cooling and ventilation device stops working, the negative pressure fan 21 stops rotating. At this time, the pressure plate 322 loses its thrust and moves downward to reset under the elastic force of the telescopic spring 326. When the pressure plate 322 moves downward, it squeezes the sponge block 323, squeezing out the water inside the sponge block 323 and draining it along the baffle 321 into the drain pipe 31. The water is then discharged through the drain pipe 31, rinsing the dustproof net 27, thus realizing the cleaning function of the cooling and ventilation device on the surface of the dustproof net 27.

[0028] Working principle: When in use, first place the cooling and ventilation device at the air inlet on the outer wall of the workshop, insert the end of the air outlet hood 13 with the cover frame 14 into the air inlet, so that the mounting ears on the surface of the air outlet hood 13 contact the outer wall, and then fix the cooling and ventilation device by screws and mounting ears.

[0029] In use, the cooling and ventilation device can be turned on by operating the control button 11. At this time, the negative pressure fan 21 operates to filter the outside air through the dust screen 27 and enter the mixing chamber 29 through the air inlet 22. At this time, cooling water enters the water storage tank 23 through the water inlet pipe and is sprayed through the spray frame 25 to form water mist inside the mixing chamber 29. This water mist comes into contact with and mixes with the air entering the mixing chamber 29, cooling the air. The cooled air enters the air inlet hood 1 through the air guide 26 and is discharged through the air outlet 28, so that the air drawn in by the cooling and ventilation device is air mixed with water mist, resulting in a lower temperature of the drawn-in air.

[0030] At this time, the air discharged through the exhaust vent 28 pushes the pressure plate 322, causing it to move upward along the guide rod 327. Since the bottom of the pressure plate 322 has an arc-shaped structure, when air comes into contact with it, a small amount of moisture in the air adheres to the surface of the pressure plate 322, forming water droplets that slide down the inner wall of the pressure plate 322 and are absorbed by the sponge block 323. Because the sponge block 323 is located outside the exhaust vent 28 and in contact with the inner walls on both sides of the air outlet hood 13, the air discharged through the exhaust vent 28 must pass through the sponge block 323 before being discharged. Simultaneously, when water enters the water tank 23, some water permeates into the sponge block 323 through the absorbent cotton strip 325, keeping the sponge block 323 moist. This allows for further cooling of the air passing through the sponge block 323. Furthermore, the sponge block 323 can intercept water-insoluble solid foreign objects in the air, improving air quality. The air then enters below the spray head 34 and mixes with the water mist sprayed from the spray head 34 for further cooling. The cooled air is then discharged through the air outlet 24. Simultaneously, the sponge block 323 can be removed and replaced by opening the inspection door 12 and using the Velcro at both ends of the sponge block 323. Then, the limiting sleeve 324 is rotated to separate it from the water storage tank 23. The limiting sleeve 324 and the absorbent cotton strip 325 are then pulled down to remove them. A new absorbent cotton strip 325 is then inserted into the inside of the limiting sleeve 324, and one end of the absorbent cotton strip 325 is inserted into the through hole at the bottom of the water storage tank 23 that connects to the absorbent cotton strip 325. Finally, the limiting sleeve 324 is rotated to tighten and fix it, thereby realizing the multiple cooling function of the cooling ventilation device and improving the cooling efficiency of the workshop when the cooling ventilation device is in use.

[0031] The cold air discharged through the air outlet duct 24 enters the activated carbon layer 15 through the air outlet hood 13. After being filtered by the activated carbon layer 15, it enters the workshop through the cover frame 14. At the same time, an exhaust fan is installed on the side of the workshop opposite to the cover frame 14 to exhaust the hot air in the workshop, cool and ventilate the workshop. After a period of time, the screws on the surface of the cover frame 14 can be loosened in the workshop, the cover frame 14 can be removed, and the activated carbon layer 15 can be taken out and replaced.

[0032] Meanwhile, when air passes through the dustproof net 27 and comes into contact with the water mist, some of the dust floating in the air mixes with the water mist, increasing in weight and adhering to the surface of the dustproof net 27. At this time, when the negative pressure fan 21 rotates, it drives the rotating frame 41 to rotate synchronously, driving the cleaning brush 42 to clean the surface of the dustproof net 27, preventing dust from clogging the small holes on the surface of the dustproof net 27. At the same time, the water sprayed by the spray frame 25 is discharged to the surface of the dustproof net 27 through the drain pipe 31, which can rinse the surface of the dustproof net 27. Under the action of the one-way valve 33, it prevents external air from directly entering the air outlet hood 13. The water sprayed by the spray frame 25 is discharged directly through the dustproof net 27, cleaning the dustproof net 27. After rinsing, the water falls into the water collection device below. When the cooling ventilation device stops working, the negative pressure fan 21 stops rotating. At this time, the pressure plate 322 loses its thrust and moves downward to reset under the elastic force of the telescopic spring 326. When the pressure plate 322 moves downward, it squeezes the sponge block 323, squeezing out the water inside the sponge block 323 and draining it along the baffle 321 into the drain pipe 31. The water is then discharged through the drain pipe 31, rinsing the dustproof net 27. This achieves the cleaning function of the cooling ventilation device on the surface of the dustproof net 27, thereby avoiding the phenomenon of clogging on the surface of the dustproof net 27 during the use of the cooling ventilation device. Finally, the use of the cooling ventilation device is completed.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-efficiency cooling and ventilation device for high-temperature workshops, comprising an air inlet hood (1), characterized in that: The surface of the air inlet hood (1) is equipped with control buttons (11), and the top of the air inlet hood (1) is fixed with an air outlet hood (13). The air inlet hood (1) and the air outlet hood (13) are equipped with a cooling and ventilation mechanism (2). The cooling and ventilation mechanism (2) includes a negative pressure fan (21), an air inlet (22), a water storage tank (23), a spray frame (25), and a mixing chamber (29). A negative pressure fan (21) is installed at the center of the air inlet hood (1). The input end of the negative pressure fan (21) is connected to the control button (11). The output end of the control button (11) is electrically connected. Both sides of the air inlet hood (1) are provided with mixing chambers (29). An air inlet (22) is provided at the bottom of the inner wall of the mixing chamber (29). A water storage tank (23) is fixed inside the air outlet hood (13). A spray rack (25) is installed at the top of the mixing chamber (29). The input end of the spray rack (25) is electrically connected to the output end of the control button (11). One end of the spray rack (25) is connected to the water storage tank (23).

2. The high-efficiency cooling and ventilation device for high-temperature workshops according to claim 1, characterized in that: The cooling and ventilation mechanism (2) also includes an air outlet (24), an air guide (26), a dustproof net (27), and an exhaust port (28). The air outlet (24) is embedded at the edge of both sides of the water storage tank (23). The surface of the air inlet (22) is covered with a dustproof net (27). The dustproof net (27) is detachably connected to the air inlet cover (1) by screws. An air guide (26) is opened on the inner wall of one side of the mixing chamber (29). The air guide (26) is located inside the air inlet (22). The air guide (26) is connected to the interior of the air inlet cover (1). An exhaust port (28) is opened on the surface of the top of the air inlet cover (1).

3. The high-efficiency cooling and ventilation device for high-temperature workshops according to claim 1, characterized in that: The air outlet hood (13) is equipped with a multi-cooling mechanism (3). The multi-cooling mechanism (3) includes a drain pipe (31), a multi-cooling component (32), and a one-way valve (33). Drain pipes (31) are fixed at the bottom of both sides of the air outlet hood (13). One end of the drain pipe (31) extends to the bottom of the dustproof net (27). A one-way valve (33) is installed on the surface of the drain pipe (31). The input end of the one-way valve (33) is electrically connected to the output end of the control button (11). The air inlet hood (1) is equipped with a drain pipe (31). The drain pipe (31) is located between the air inlet hood (1) and the water storage tank (23).

4. The high-efficiency cooling and ventilation device for high-temperature workshops according to claim 3, characterized in that: The multiple cooling mechanism (3) also includes a spray head (34), which is installed on both sides of the bottom of the water tank (23). The input end of the spray head (34) is electrically connected to the output end of the control button (11). The spray head (34) is located between the multiple cooling component (32) and the air outlet pipe (24).

5. The high-efficiency cooling and ventilation device for high-temperature workshops according to claim 3, characterized in that: The multiple cooling assembly (32) includes a baffle (321), a pressure plate (322), a telescopic spring (326), and a guide rod (327). The baffle (321) is fixed on the top of the air inlet hood (1). The baffle (321) is located outside the air outlet (28). The surfaces on both sides of the baffle (321) are inclined. The pressure plate (322) is provided above the baffle (321). The bottom surface of the pressure plate (322) is arc-shaped. The guide rod (327) is fixed on both sides of the top of the baffle (321). One end of the guide rod (327) passes through the pressure plate (322) and is fixedly connected to the bottom of the water storage tank (23). The telescopic spring (326) is sleeved on the outside of the top position of the guide rod (327). The surfaces at both ends of the telescopic spring (326) are fixedly connected to the surfaces of the water storage tank (23) and the pressure plate (322), respectively.

6. The high-efficiency cooling and ventilation device for high-temperature workshops according to claim 5, characterized in that: The multiple cooling assembly (32) also includes a sponge block (323), a limiting sleeve (324), and absorbent cotton strips (325). The bottom sides of the pressure plate (322) are both attached to the sponge block (323) by Velcro. The bottom of the sponge block (323) is attached to the bottom of the baffle (321) by Velcro. The bottom sides of the water tank (23) are filled with absorbent cotton strips (325), one end of which extends to the sponge block. At the top position inside (323), a limiting sleeve (324) is fitted on the outside of the absorbent cotton strip (325). One end of the limiting sleeve (324) passes through the pressure plate (322) and extends to the top position inside the sponge block (323). The limiting sleeve (324) is detachably connected to the water storage tank (23) through a threaded ring. An inspection door (12) is installed on the surface of the air outlet hood (13). The inspection door (12) is located on one side of the multiple cooling assembly (32).

7. The high-efficiency cooling and ventilation device for high-temperature workshops according to claim 1, characterized in that: The bottom of the air inlet hood (1) is provided with a cleaning mechanism (4). The cleaning mechanism (4) includes a rotating frame (41) and a cleaning brush (42). The rotating frame (41) is rotatably connected at the center of the bottom of the air inlet hood (1). The central axis of the rotating frame (41) coincides with the central axis of the negative pressure fan (21). The rotating frame (41) has a T-shaped structure. One end of the rotating frame (41) extends into the interior of the air inlet hood (1) and is fixedly connected to the rotating shaft of the negative pressure fan (21). The other two ends of the rotating frame (41) are respectively equipped with cleaning brushes (42). The surface of the cleaning brush (42) is closely attached to the surface of the dustproof net (27).

8. The high-efficiency cooling and ventilation device for high-temperature workshops according to claim 1, characterized in that: The structure of the air outlet hood (13) is an L-shaped structure. One end of the air outlet hood (13) is welded with mounting ears. One end of the air outlet hood (13) is covered with a cover frame (14). The cover frame (14) is detachably connected to the air outlet hood (13) by screws. An activated carbon layer (15) is placed between the air outlet hood (13) and the cover frame (14). The surface of the activated carbon layer (15) is tightly attached to the inner wall of the air outlet hood (13) and the cover frame (14).

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