Smoke collection and haze removal double fans

Abstract

The present invention discloses a smoke collection and haze removal double-fan, which includes a housing, a water cooling device, a negative pressure plant fiber purification device, a fan, and a positive pressure purification silencer. The water cooling device, the negative pressure plant fiber purification device, and the fan are all installed inside the housing. The water cooling device is installed at the lower part of the housing, the negative pressure plant fiber purification device is installed in the middle of the housing, the fan is installed at the upper part of the housing. A main air inlet is provided at the lower end of the housing, and an air outlet is provided at the upper end of the housing. The positive pressure purification silencer is connected to the air outlet. The present invention installs two independently operable systems in a box body, and uses the water cooling device to cool the flue gas and the fire baffle in front of the range hood. A plant fiber purification device is provided to purify the cooled flue gas and prevent the overheated flue gas from causing the overheating and combustion of the plant fiber purification device. The machine body of the present invention is structurally compact, has a large suction force and good purification effect. The water in the cooling water tank can be recycled after being heated, and it has good fire prevention, flame retardancy and energy-saving effects.

Description

Technical Field

[0001] The present invention relates to an oil fume purification device, and particularly to a dual - fan for smoke collection and haze removal. Background Art

[0002] Cooking fumes are formed by a series of physical and chemical changes of edible oil and food under high - temperature conditions. When the edible oil is heated to 170 °C, a small amount of oil fume mist begins to appear. As the temperature rises, the decomposition rate of the oil accelerates. When the temperature reaches 250 °C, a large amount of cooking fumes will be generated. In the cooking methods in our country, most foods need to be processed by frying, stir - frying, cooking, deep - frying, etc. at high temperatures, and the oil temperature is often above 250 °C, which is extremely likely to generate a large amount of cooking fumes. When the stove is working, the fumes generated in the furnace, in addition to heating the kitchen utensils, the excess heat is dissipated into the room in the form of thermal radiation and is directly discharged outdoors by the suction of the range hood or fan. This not only pollutes the environment, but also the heat in the fumes is dissipated with the discharge of the fumes, resulting in waste of energy and resources. For this reason, the inventor designed a purification and absorption device made of plant fibers as a purifier to produce an environmentally friendly and energy - saving oil fume purifier. However, the flammability of plant fibers makes it difficult to adapt to the stir - frying kitchens or industrial production processes with strong firepower and a large amount of heat generated. Summary of the Invention

[0003] The purpose of the present invention is to provide a dual - fan for smoke collection and haze removal that is fire - proof, flame - retardant, energy - saving and environment - friendly.

[0004] According to one aspect of the present invention, there is provided a dual - fan for smoke collection and haze removal, including a housing, a water - cooling device, a negative - pressure plant fiber purification device, a fan and a positive - pressure purification silencer. The water - cooling device, the negative - pressure plant fiber purification device and the fan are all installed inside the housing. The water - cooling device is installed at the lower part of the housing, the negative - pressure plant fiber purification device is installed in the middle of the housing, the fan is installed at the upper part of the housing. The lower end of the housing is provided with a main air inlet, the upper end of the housing is provided with an air outlet, and the positive - pressure purification silencer is connected to the air outlet. The negative - pressure plant fiber purification device is provided in two and is isolated from each other. The fan and the positive - pressure purification silencer are provided in two and are respectively arranged corresponding to the two negative - pressure plant fiber purification devices.

[0005] In some embodiments, the water - cooling device includes an oil - collecting water tank, a first cooling water tank, a second cooling water tank and a third cooling water tank. The oil - collecting water tank is arranged at the bottom end of the housing and is lower than the main air inlet. The first cooling water tank is arranged above the main air inlet. The second cooling water tank is arranged above the first cooling water tank. The third cooling water tank is arranged above the second cooling water tank and is located on one side of the negative - pressure plant fiber purification device.

[0006] In some embodiments, the housing includes a rear plate, side plates, and a middle plate. There are two side plates which are respectively fixedly connected to both ends of the rear plate. The middle plate is fixedly connected to the rear plate and is located between the two side plates. The first cooling water tank, the second cooling water tank, and the third cooling water tank are all fixed between the side plates and the middle plate. There are two of each of the first cooling water tank, the second cooling water tank, and the third cooling water tank, and they are respectively located on both sides of the middle plate.

[0007] In some embodiments, the first cooling water tank includes a first box body, a first water outlet pipe, and a first overflow pipe. One end of the first water outlet pipe is connected to the first box body, and the other end of the first water outlet pipe faces the rear plate and can drain the liquid in the first box body to the rear plate. One end of the first overflow pipe is connected to the first box body, and the other end of the first overflow pipe faces the rear plate and can drain the liquid in the first box body to the rear plate.

[0008] In some embodiments, the connection point of the first water outlet pipe and the first box body is higher than the connection point of the first overflow pipe and the first box body, and the distance between the water outlet end of the first water outlet pipe and the rear plate is greater than the distance between the water outlet end of the first overflow pipe and the rear plate.

[0009] In some embodiments, the second cooling water tank includes a second box body, a second water outlet pipe, and a second overflow pipe. One end of the second water outlet pipe is connected to the second box body, and the other end of the second water outlet pipe faces the rear plate and can drain the liquid in the second box body to the rear plate. One end of the second overflow pipe is connected to the second box body, and the other end of the second overflow pipe is connected to the first cooling water tank and can drain the liquid in the second cooling water tank into the first cooling water tank.

[0010] In some embodiments, the third cooling water tank includes a third box body and a third overflow pipe. One end of the third overflow pipe is connected to the third box body, and the other end of the third overflow pipe faces the third box body and can drain the liquid in the third box body into the second cooling water tank.

[0011] In some embodiments, the two first cooling water tanks are connected by a pipeline, the two second cooling water tanks are connected by a pipeline, and the two third cooling water tanks are connected by a pipeline.

[0012] In some embodiments, one side of the first cooling water tank is inclined to form a first fire baffle, one side of the second cooling water tank is inclined to form a second fire baffle, a third fire baffle is provided on the upper side of the second fire baffle, a first auxiliary air inlet is provided between the first fire baffle and the second fire baffle, a second auxiliary air inlet is provided between the second fire baffle and the third fire baffle, and a third auxiliary air inlet is provided on the upper side of the third fire baffle.

[0013] The beneficial effects of the present invention are as follows: the present invention installs two independently operable systems into one box, and uses a water cooling device to cool down the smoke entering the range hood and the fireproof baffle in front of the range hood. A plant fiber purification device is arranged above the cooling water tank, which can purify the cooled smoke and prevent the overheated smoke from causing the plant fiber purification device to overheat and burn. Purification devices are arranged on the inlet side and the outlet side of the fan, respectively, which can greatly save the energy consumption of the fan, and at the same time, the harmful characteristics in the smoke can be fully purified to the maximum extent. The purified smoke can be directly discharged when it meets the emission standards. It can be adapted to cool down and purify the smoke from kitchens or industrial production with large production volume and strong firepower. While purifying the smoke, the heat in the smoke can be recovered. The two systems can operate independently and can also operate in conjunction at the same time. The machine body has a compact structure, strong suction, and good purification effect. The water in the cooling water tank can be recycled and reused after being heated, and has good fireproof and flame retardant and energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a smoke and haze collecting and removing dual fan according to an embodiment of the present invention;

[0015] Figure 2 for Figure 1 The main structural diagram of the smoke collecting and haze removing dual fans is shown. DETAILED DESCRIPTION

[0016] The invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] Figure 1 and Figure 2 A dual fan for collecting smoke and removing haze according to an embodiment of the present invention is schematically shown.

[0018] Reference Figure 1 and Figure 2 The smoke collecting and haze removing dual fan includes a housing 1, a water cooling device 2, a negative pressure plant fiber purification device 3, a fan 4 and a positive pressure purification muffler 5. The water cooling device 2, the negative pressure plant fiber purification device 3 and the fan 4 are all installed in the housing 1. The water cooling device 2 is installed at the lower part of the housing 1, the negative pressure plant fiber purification device 3 is installed at the middle part of the housing 1, and the fan 4 is installed at the upper part of the housing 1. The lower part of the housing 1 is provided with a main air inlet 11, and the upper end of the housing 1 is provided with an air outlet 12. The positive pressure purification muffler 5 is connected to the air outlet 12. The negative pressure plant fiber purification device 3 is set as two and isolated from each other, and the fan 4 and the positive pressure purification muffler 7 are set as two and respectively corresponding to the two negative pressure plant fiber purification devices 3.

[0019] The water cooling device 2 includes an oil collecting water tank 21, a first cooling water tank 22, a second cooling water tank 23, and a third cooling water tank 24. The oil collecting water tank 21 is arranged at the bottom end of the housing 1 and connected to the lower end of the main air inlet 11. The first cooling water tank 22 is arranged above the main air inlet 11. The second cooling water tank 23 is arranged above the first cooling water tank 22. The third cooling water tank 24 is arranged above the second cooling water tank 23 and in front of the negative pressure plant fiber purification device 3. The negative pressure plant fiber purification device 3 occupies the entire gas flow cross-section inside the housing 1.

[0020] The housing 1 includes a rear plate 13, side plates 14, and a middle plate 15. There are two side plates 14 which are respectively fixedly connected to both ends of the rear plate 13. The rear plate 13 and the side plates 14 can be an integral structure. The middle plate 15 is fixedly connected to the rear plate 13. The middle plate 15 is located between the two side plates 14 and arranged parallel to the two side plates 14. The first cooling water tank 22, the second cooling water tank 23, and the third cooling water tank 24 are all fixed between the side plates 14 and the middle plate 15. The first cooling water tank 22, the second cooling water tank 23, and the third cooling water tank 24 are all arranged in two and are respectively located on both sides of the middle plate 15. The two first cooling water tanks 22 are connected by a pipeline. The two second cooling water tanks 23 are connected by a pipeline. The two third cooling water tanks 24 are connected by a pipeline.

[0021] Two negative pressure plant fiber purification devices 3 are respectively located on both sides of the middle plate 15. The first cooling water tank 22, the second cooling water tank 23, the third cooling water tank 24, the negative pressure plant fiber purification device 3, the fan 4, and the positive pressure purification silencer 5 on both sides of the middle plate 15 can respectively form an independent operating system. When the amount of oil fume to be purified is small, only one system on one side of the middle plate 15 can be turned on for operation. When the amount of oil fume to be purified is large, the two systems can be turned on for linked operation at the same time.

[0022] The first cooling water tank 22 includes a first box body 221, a first water outlet pipe 222, and a first overflow pipe 223. The first box body 221 is fixedly connected to the side plate 14 and the middle plate 15. One end of the first water outlet pipe 222 is connected to the first box body 221, and the other end of the first water outlet pipe 222 faces the rear plate 13 and has a gap. The first water outlet pipe 222 can drain the liquid in the first box body 221 onto the rear plate 13. One end of the first overflow pipe 223 is connected to the first box body 221, and the other end of the first overflow pipe 223 faces the rear plate 13 and has a gap. The first overflow pipe 223 can drain the liquid in the first box body 221 onto the rear plate 13. The liquid on the rear plate 13 can flow down along the rear plate 13 into the oil collecting water tank 21. The oil collecting water tank 21 is connected to a drainage pipeline, and the liquid in the oil collecting water tank 21 can be discharged.

[0023] The first water outlet pipe 222 and the first overflow pipe 223 are both connected to the upper part of the first cooling water tank 22. The first water outlet pipe 222 and the first overflow pipe 223 are both arranged in multiple numbers and horizontally. The connection point of the first water outlet pipe 222 and the first box body 221 is lower than the connection point of the first overflow pipe 223 and the first box body 221. The first water outlet pipe 222 drains the cooling water in the first cooling water tank 22 to a position between the water outlet end of the first water outlet pipe 222 and the rear plate 13, and the distance is greater than the distance between the water outlet end of the first overflow pipe 223 and the rear plate 13. When the liquid in the first water outlet pipe 222 is ejected, it contacts the upwardly flowing high-speed flue gas. The flue gas will blow up some of the ejected liquid to form an atomization effect in the outer shell 1. The oil and harmful substances in the flue gas are mixed with the water mist to form an oil-water mixture. The oil-water mixture rotates and collides continuously in the outer shell 1. Part of it descends along the rear plate 13 to the oil collecting water tank 21, and the other part ascends to the negative pressure plant fiber purification device 3 and is absorbed by it. While cooling the flue gas, the harmful substances in the flue gas are cleaned, greatly improving the purification effect.

[0024] The second cooling water tank 23 includes a second box body 231, a second water outlet pipe 232 and a second overflow pipe 233. The second box body 231 is fixedly connected to the side plate 14. One end of the second water outlet pipe 232 is connected to the second box body 231, and the other end of the second water outlet pipe 232 faces the rear plate 13 and can drain the liquid in the second box body 231 to the rear plate 13. One end of the second overflow pipe 233 is connected to the second box body 231, and the other end of the second overflow pipe 233 is connected to the first cooling water tank 22 and can drain the liquid in the second cooling water tank 23 into the first cooling water tank 22. The second water outlet pipe 232 and the second overflow pipe 233 are both fixed to the upper part of the second box body 231. The connection point of the second water outlet pipe 232 and the second box body 231 is lower than the connection point of the second overflow pipe 233 and the second box body 231. The second water outlet pipe 232 and the second overflow pipe 233 are both arranged in multiple numbers and horizontally.

[0025] One side of the first cooling water tank 22 is inclined to form a first fire baffle 224, and one side of the second cooling water tank 23 is inclined to form a second fire baffle 234. The longitudinal sections of the first cooling water tank 22 and the second cooling water tank 23 are both triangular with the upper part larger and the lower part smaller. The other side of the first cooling water tank 22 is inclined, which can avoid blocking the main air inlet 11 to the negative pressure plant

[0026] The flue gas flow passage between the negative pressure plant fiber purification device 3. The other side of the second cooling water tank 23 is inclined, which can avoid blocking the flue gas flow passage between the main air inlet 11 and the negative pressure plant fiber purification device 3. During the upward movement of the flue gas, it collides and mixes with the water flow ejected from the water outlet pipe and the overflow pipe. Under the impact of the high-speed flue gas and the action of the high temperature of the flue gas, part of the water flow is blown up to form mist-like droplets and vapor. On the one hand, the flue gas can be sufficiently cooled. On the other hand, the droplets come into full contact with the flue gas, and the harmful substances in the flue gas are inhaled into the liquid to form an oil-water mixture, which finally descends along the rear plate 13 into the oil collecting tank 21 for collection and discharge.

[0027] A third fire baffle 16 is provided on the upper side of the second fire baffle 234. A first auxiliary air inlet 17 is provided between the first fire baffle 224 and the second fire baffle 234. A second auxiliary air inlet 18 is provided between the second fire baffle 234 and the third fire baffle 16. A third auxiliary air inlet is provided on the upper side of the third fire baffle 16. The three auxiliary air inlets cooperate with the main air inlet to completely absorb the polluted gas under the double fans for smoke collection and haze removal.

[0028] A third cooling water tank 8 is arranged inside the third fire baffle 16. The third cooling water tank 8 is located above the second cooling water tank 23 and directly in front of the negative pressure plant fiber purification device 3. The two sides of the third cooling water tank 8 are detachably and fixedly connected to the side plate 14 and the middle plate 15 respectively. The lower part of the third cooling water tank 8 is linked to the upper part in front of the second cooling water tank 23 by a hinge. The top of the front panel of the third cooling water tank 8 is hemmed and fixed to the box body with screws (or bolts), which is detachable. Its function is to cool the front part of the plant fiber purifier, prevent fire and provide water for the following water tank, and be responsible for the installation and removal channels of the plant fiber purifier.

[0029] 2 to 5 third overflow pipes are installed in the third cooling water tank 8. The water outlet ends of the third overflow pipes are connected to the second cooling water tank 23 and can drain the water in the third cooling water tank 8 into the second cooling water tank 23 to supply water for the following water tank. The water level height in the third water tank can be guaranteed to ensure that it has sufficient cooling and cooling water volume, and at the same time, replenish water for the second cooling water tank 23. The third cooling water tank 8 is also provided with a water inlet pipe, which is communicated with the tap water pipe. During the use process, the water inlet pipe continuously supplies water to the third cooling water tank 8. The water in the third cooling water tank 8 flows into the second cooling water tank 23 through the third overflow pipes. Part of the water flowing out of the second cooling water tank 23 flows into the first cooling water tank 22 through the second overflow pipe 233, and the other part is sprayed onto the rear plate 13 through the second water outlet pipe 232. All the water flowing out of the first cooling water tank 22 is sprayed onto the rear plate 13. Finally, all the flowing-down water is drained into the oil collecting tank 21 through the rear plate 13 for collection.

[0030] The negative pressure plant fiber purification device 3 is arranged on the air inlet side of the fan 4. The negative pressure plant fiber purification device 3 includes a support plate 31, a plant fiber purifier 32 and a pressing plate 33. The plant fiber purifier 32 is arranged on the upper side of the support plate 31 and supported by the support plate 31. Both the support plate 31 and the plant fiber purifier 32 can be set to be multiple and arranged longitudinally in a staggered manner. One support plate 31 supports one plant fiber purifier 32. Each plant fiber purifier 32 is independently arranged and detachable to facilitate the installation and replacement of the purifier. The pressing plate 33 is arranged on the upper side of the uppermost plant fiber purifier 32.

[0031] The smoke collection and haze removal double fan of the present invention is also provided with a positive pressure purification silencer 5. An air outlet 12 is provided at the top of the outer shell 1. The positive pressure purification silencer 5 is connected to the air outlet 12. The positive pressure purification silencer 5 is used to perform the final purification of the flue gas discharged from the range hood. The purified flue gas can reach the emission standard and can be directly discharged. In addition, the positive pressure purification silencer 5 can also play a role in silencing at the outlet. The noise generated by the operation of the fan 4 is transmitted from the air outlet 12 and then absorbed by the positive pressure purification silencer 5, which can reduce the overall operation noise of the range hood.

[0032] The positive pressure purification muffler 5 includes a positive pressure purification muffler housing 51, an upper cone purification absorber 52, a middle column purification absorber 53, and a lower cone purification absorber 54. The positive pressure purification muffler housing 51 is vertically arranged. The middle section of the positive pressure purification muffler housing 51 is cylindrical, and both the upper and lower ends of the positive pressure purification muffler housing 51 are tapered and gradually narrowing. The positive pressure purification muffler housing 51 includes an upper cone body, a main body, and a lower cone body. The upper cone purification absorber 52, the middle column purification absorber 53, and the lower cone purification absorber 54 are sequentially arranged in the positive pressure purification muffler housing 51 from top to bottom. The upper cone purification absorber 52 cooperates with the upper cone body, the middle column purification absorber 53 cooperates with the main body, and the lower cone purification absorber 54 cooperates with the lower cone body. A partition is provided between the upper cone purification absorber 52 and the middle column purification absorber 53, a partition is provided between the middle column purification absorber 53 and the lower cone purification absorber 54. The upper cone purification absorber 52 and the lower cone purification absorber 54 are arranged as a two-layer purifier structure, and a partition is provided between the two layers of purifiers. The middle column purification absorber 53 is arranged as a three to four-layer purifier structure. The aperture diameters of the gas passing channels of two adjacent purifiers are different, and a partition is provided between adjacent purifiers. The partition is provided with a plurality of uniformly distributed through holes, and the partition can play a role in support and air distribution. The flue gas enters the positive pressure purification muffler 5 from the lower end of the positive pressure purification muffler housing 51, enters the middle column purification absorber 53 through the lower cone purification absorber 54, and the flow cross-section gradually increases. When passing through the purifiers of each layer of the middle column purification absorber 53, since the gas passing channels of each layer of purifiers are inconsistent, the gas flows in an S shape between each layer of purifiers, which can make the flue gas fully contact with the purifiers. After flowing from the middle column purification absorber 53 to the upper cone purification absorber 52, the flow cross-section gradually decreases. After the flue gas is fully purified by the positive pressure purification muffler 5, it is discharged from the top of the positive pressure purification muffler 5.

[0033] The three water tanks cooperate with the oil collecting water tank 21, which can play a role in fire prevention, flame retardancy and temperature reduction. At the same time, the flue gas is washed and purified, facilitating the retention of harmful substances such as lipid v0Cs and pM2.5 in the flue gas in the plant fiber purification absorber.

[0034] Pollution control starts from the source. A main air inlet and three auxiliary air inlets are set. The lower end of the main air inlet is 200 mm away from the pot edge. The fans work independently without affecting each other. It is almost a direct extraction, with direct discharge and no resistance. A special environmental protection multi-blade volute fan is used, and the motor power is between 200W and 350W. The fan impeller has 65 to 75 blades, and the average wind speed at the air outlet is between 18 and 25 m / s. The air volume is large. It is designed for 5 to 10 times the amount of polluted gas generated. Before the polluted gas diffuses, most of it is sucked into the purifier, and then the remaining polluted gas is completely sucked up by 2 to 3 auxiliary air inlets, so as to achieve the purpose of smoke collection. These 2 to 3 auxiliary air inlets can absorb the polluted gas that the main air inlet fails to collect completely. Under the guidance of the suction force of the main air inlet, for the part of the polluted gas that expands sharply and rises and diffuses, there is a certain wall attachment phenomenon, which is beneficial to the collection by the auxiliary air inlets. The national standard for the design of pollution gas purification and treatment is ventilation, that is, to collect and purify the polluted gas after diffusion or to directly discharge it. Of course, it consumes energy. And the standard stipulates that for one burner, a 2000 - 2500W motor must be designed to drive a 2500 - 3000 cubic / min fan for ventilation. Our invention can change the old method of high energy consumption and expanded pollution in the past. The fan uses the air supply principle of Archimedes spiral line connected to a parabola. The impeller maximally sucks in, compresses, and sends out the polluted gas to achieve the purpose of the least resistance and the largest air supply volume. One blade is equivalent to a fan. It continuously compresses and sucks in in the Archimedes spiral line and reduces the resistance when pushing out in the parabola.

[0035] The smoke collection and haze removal double fans of the present invention have the following characteristics: 1. Miniaturized and modular, suitable for all catering kitchen; 2. Cooling with water to ensure the normal operation of the purifier and the motor; 3. Cooling to about 5 - 10 degrees above room temperature can cool and condense lipid VOCs (oil fume), making it lose its volatilization effect and remaining in the plant fiber for secondary utilization, so as to achieve the source control of lipid volatile organic compounds and PM generation. It can completely purify the pollutants in the oil fume gas.

[0036] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the creative concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the invention.

Claims

1. Smoke collection and haze removal double fan, Characterized in that: It includes a housing (1), a water cooling device (2), a negative pressure plant fiber purification device (3), a fan (4) and a positive pressure purification muffler (7). The water cooling device (2), the negative pressure plant fiber purification device (3), and the fan (4) are all installed inside the housing (1). The water cooling device (2) is installed at the lower part of the housing (1), the negative pressure plant fiber purification device (3) is installed in the middle of the housing (1), the fan (4) is installed at the upper part of the housing (1). A main air inlet (11) is provided at the lower part of the housing (1), an air outlet (12) is provided at the upper end of the housing (1), and the positive pressure purification muffler (7) is connected to the air outlet (12). The negative pressure plant fiber purification device (3) is provided with two and is isolated from each other. The fan (4) and the positive pressure purification muffler (7) are provided with two and are respectively arranged corresponding to the two negative pressure plant fiber purification devices (3); The water cooling device (2) includes an oil collecting water tank (21), a first cooling water tank (22), a second cooling water tank (23) and a third cooling water tank (24). The oil collecting water tank (21) is arranged at the bottom end of the housing (1) and is lower than the main air inlet (11). The first cooling water tank (22) is arranged above the main air inlet (11). The second cooling water tank (23) is arranged above the first cooling water tank (22). The third cooling water tank (24) is arranged above the second cooling water tank (23) and is located on one side of the negative pressure plant fiber purification device (3); The housing (1) includes a rear plate (13), side plates (14) and a middle plate (15). The side plates (14) are provided with two and are respectively fixedly connected to both ends of the rear plate (13). The middle plate (15) is fixedly connected to the rear plate (13) and is located between the two side plates (14). The first cooling water tank (22), the second cooling water tank (23) and the third cooling water tank (24) are all fixed between the side plates (14) and the middle plate (15). The first cooling water tank (22), the second cooling water tank (23) and the third cooling water tank (24) are all provided with two and are respectively located on both sides of the middle plate (15); The first cooling water tank (22) includes a first box body (221), a first water outlet pipe (222) and a first overflow pipe (223). One end of the first water outlet pipe (222) is connected to the first box body (221), and the other end of the first water outlet pipe (222) faces the rear plate (13) and can drain the liquid in the first box body (221) to the rear plate (13). One end of the first overflow pipe (223) is connected to the first box body (221), and the other end of the first overflow pipe (223) faces the rear plate (13) and can drain the liquid in the first box body (221) to the rear plate (13); The second cooling water tank (23) includes a second box body (231), a second water outlet pipe (232) and a second overflow pipe (233). One end of the second water outlet pipe (232) is connected to the second box body (231), and the other end of the second water outlet pipe (232) faces the rear plate (13) and can drain the liquid in the second box body (231) to the rear plate (13). One end of the second overflow pipe (233) is connected to the second box body (231), and the other end of the second overflow pipe (233) is connected to the first cooling water tank (22) and can drain the liquid in the second cooling water tank (23) into the first cooling water tank (22). The third cooling water tank (24) includes a third box body (241) and a third overflow pipe (242). One end of the third overflow pipe (242) is connected to the third box body (241), and the other end of the third overflow pipe (242) faces the third box body (241) and can drain the liquid in the third box body (241) into the second cooling water tank (23). One side of the first cooling water tank (22) is inclined to form a first fire baffle (224). One side of the second cooling water tank (23) is inclined to form a second fire baffle (234). A third fire baffle (16) is provided on the upper side of the second fire baffle (234). A first auxiliary air inlet (17) is provided between the first fire baffle (224) and the second fire baffle (234). A second auxiliary air inlet (18) is provided between the second fire baffle (234) and the third fire baffle (16). A third auxiliary air inlet is provided on the upper side of the third fire baffle (16).

2. The smoke collection and haze removal double fan according to claim 1, characterized in that: The connection point of the first water outlet pipe (222) and the first box body (221) is higher than the connection point of the first overflow pipe (223) and the first box body (221). The distance between the water outlet end of the first water outlet pipe (222) and the rear plate (13) is greater than the distance between the water outlet end of the first overflow pipe (223) and the rear plate (13).

3. The smoke collection and haze removal double fan according to claim 1, characterized in that: The two first cooling water tanks (22) are communicated with each other by a pipeline. The two second cooling water tanks (23) are communicated with each other by a pipeline. The two third cooling water tanks (24) are communicated with each other by a pipeline.

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