Stir-fry smoke collector and haze remover

Abstract

The present invention discloses a smoke and haze collector for stir-frying, comprising a housing and an oil collecting water tank, a first cooling water tank, a second cooling water tank, a negative pressure plant fiber purification device, and a fan, all of which are arranged in the housing. A main air inlet is provided at the lower portion of the housing, 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, and the negative pressure plant fiber purification device is arranged above the rear of the second cooling water tank. Multiple cooling water tanks are provided to cool the smoke entering the range hood and the fireproof baffle in front of the range hood. The present invention can purify the cooled smoke and prevent overheated smoke from causing the plant fiber purification device to overheat and burn. It greatly saves the energy consumption of the fan and can also fully purify the harmful characteristics in the smoke to the maximum extent. It has a compact structure and good purification effect. The water in the cooling water tank can be recycled and reused after being heated. It has good fire retardant and energy-saving effects.

Description

Technical Field

[0001] The invention relates to an oil fume purifier, in particular to an oil fume collector and haze remover for stir-frying. Background Art

[0002] Cooking fumes are formed by a series of physical and chemical reactions between cooking oil and food at high temperatures. A small amount of oil fume begins to appear when cooking oil is heated to 170°C. As the temperature rises, the oil breaks down faster, and by the time the temperature reaches 250°C, a significant amount of cooking fume is produced. In Chinese cuisine, most foods require high-temperature cooking processes such as frying, stir-frying, deep-frying, and deep-frying. Oil temperatures often exceed 250°C, creating a significant amount of cooking fume. Fumes generated in the furnace during operation not only heat the cookware, but also dissipate excess heat into the room through thermal radiation, where it is extracted directly outdoors by a range hood or fan. This not only pollutes the environment, but also dissipates the heat contained in the fume, resulting in a waste of energy and resources. To address this issue, the inventors designed a purification and absorption device made of plant fiber as a purifier, creating an environmentally friendly and energy-saving fume purifier. However, the flammability of plant fiber makes it difficult to adapt to high-energy cooking environments such as stir-fry kitchens or industrial production processes, which generate a lot of heat. Summary of the Invention

[0003] The purpose of the present invention is to provide a fire-proof, flame-retardant, energy-saving and environmentally friendly stir-fry smoke and haze collector.

[0004] According to one aspect of the present invention, a stir-fry smoke and haze collector is provided, comprising a housing, an oil collection tank, a first cooling water tank, a second cooling water tank, a negative pressure plant fiber purification device, and a fan, all disposed within the housing. The housing has a main air inlet at its lower portion, the oil collection tank is located at the bottom end of the housing and below the main air inlet, the first cooling water tank is located above the main air inlet, the second cooling water tank is located above the first cooling water tank, and the negative pressure plant fiber purification device is located above and behind the second cooling water tank. Thus, the second cooling water tank, the first cooling water tank, and the oil collection tank and the second cooling water tank can hold cooling water and form a top-down flow, cooling the smoke entering the housing and the housing. Alternatively, the device can cool the smoke and the housing both inside and outside the housing, reducing its temperature and condensing the smoke, reducing it to grease and PM. This achieves the purpose of purifying oil smoke and PM contaminants. Furthermore, pollutants such as grease and PM are retained in the plant fiber purifier without polluting the environment.

[0005] In some embodiments, the housing includes a rear panel and side panels, with the side panels being provided in two pieces and fixedly connected to both ends of the rear panel. The first and second cooling water tanks are both fixedly connected to the side panels. This creates a flue gas flow space between the first and second cooling water tanks and the rear panel, ensuring adequate cooling of the flue gas.

[0006] In some embodiments, the first cooling water tank includes a first tank body, a first water outlet pipe, and a first overflow pipe. The first tank body is fixedly connected to the side panel. One end of the first water outlet pipe is connected to the first tank body, and the other end of the first water outlet pipe faces the rear panel and can drain liquid from the first tank body to the rear panel. One end of the first overflow pipe is connected to the first tank body, and the other end of the first overflow pipe faces the rear panel and can drain liquid from the first tank body to the rear panel. Thus, the provision of the water outlet pipe and overflow pipe can drain excess water from the tank body and prevent water from overflowing from the upper portion of the tank body.

[0007] In some embodiments, the connection point between the first water outlet pipe and the first housing is lower than the connection point between the first overflow pipe and the first housing, and the distance between the outlet end of the first water outlet pipe and the rear panel is greater than the distance between the outlet end of the first overflow pipe and the rear panel. Thus, a certain gap is left between the first water outlet pipe, the first overflow pipe, and the rear panel, allowing water ejected from the first water outlet pipe and the first overflow pipe to collide with the flue gas entering the housing at high speed, generating water mist. The water mist mixes thoroughly with the flue gas, retaining harmful substances in the flue gas in the water, providing preliminary purification of the flue gas while also effectively cooling it.

[0008] In some embodiments, the second cooling water tank includes a second tank body, a second water outlet pipe, and a second overflow pipe. The second tank body is fixedly connected to the side panel. One end of the second water outlet pipe is connected to the second tank body, and the other end of the second water outlet pipe is opposite the rear panel and can drain the liquid in the second tank body to the rear panel. One end of the second overflow pipe is connected to the second tank 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. As a result, a portion of the water in the second cooling water tank is ejected through the second water outlet pipe to further cool the flue gas, while the overflow water enters the first cooling water tank for utilization.

[0009] In some embodiments, one side of the first cooling water tank is tilted to form a first fire barrier, and one side of the second cooling water tank is tilted to form a second fire barrier. Thus, the first and second cooling water tanks not only provide cooling water to cool the flue gas inside the housing, but also absorb upward heat from outside the housing.

[0010] In some embodiments, the negative pressure plant fiber purification device is disposed on the air inlet side of the fan and includes a support plate, a plant fiber purifier, and a pressure plate. The plant fiber purifier is disposed on and supported by the support plate. Multiple support plates and plant fiber purifiers are provided, and the pressure plate is disposed above the plant fiber purifier. Thus, by providing multiple layers of support plates and plant fiber purifiers, the plant fiber purifiers can be easily managed and replaced in layers.

[0011] In some embodiments, the stir-fry smoke and haze collector further includes a third cooling water tank, which is disposed within the outer casing and detachably connected thereto. The third cooling water tank is positioned above the second cooling water tank and located on one side of the negative pressure plant fiber purification device. The third cooling water tank is detachably connected to the outer casing and is provided with a third overflow pipe that can drain liquid from the third cooling water tank into the second cooling water tank. Thus, the third cooling water tank is used to cool the front portion of the plant fiber purification device, is fire-resistant, and provides water to the water tank below.

[0012] In some embodiments, the stir-fry smoke and haze collector also includes a positive pressure purification muffler, the top of the housing is provided with an air outlet, the positive pressure purification muffler is connected to the air outlet, the positive pressure purification muffler includes a positive pressure purification muffler housing, an upper cone purification absorber, a middle column purification absorber, and a lower cone purification absorber, the positive pressure purification muffler housing is cylindrical and vertically arranged, the upper and lower ends of the positive pressure purification muffler housing are both gradually reduced in cone shape, the upper cone purification absorber, the middle column purification absorber, and the lower cone purification absorber are sequentially arranged in the positive pressure purification muffler housing from top to bottom. Thus, by providing three purification absorbers with a larger middle and smaller ends, the flue gas can flow in a curve from the air inlet end to the air outlet end of the positive pressure purification muffler, so that the flue gas is fully in contact with the purification absorber to achieve a better purification effect.

[0013] In some embodiments, a third fire barrier is provided above the second fire barrier, a first additional air inlet is provided between the first and second fire barriers, a second additional air inlet is provided between the second and third fire barriers, and a third additional air inlet is provided above the third fire barrier. By providing multiple air inlets, rising smoke and hot air can be adequately drawn in.

[0014] The beneficial effects of the present invention are as follows: by arranging a plurality of cooling water tanks above the air inlet of the range hood, the smoke entering the range hood and the fire baffle in front of the range hood can be cooled. A plant fiber purification device is arranged above the cooling water tank to purify the cooled smoke and prevent overheating and combustion of the plant fiber purification device caused by overheated smoke. Purification devices are respectively arranged on the inlet and outlet sides of the fan, which can greatly save the energy consumption of the fan and can also fully purify the harmful characteristics in the smoke to the maximum extent. The purified smoke can be directly discharged when it meets the emission standards. The stir-fry smoke collector and haze remover of the present invention can be adapted to cool and purify the smoke from kitchens or industrial production with large production volumes and strong firepower. While purifying the smoke, it can also recover the heat in the smoke. It has a compact structure and good purification effect. The water in the cooling water tank can be recycled and reused after being heated. It has good fire retardant and energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a stir-fry smoke and haze removal machine according to one embodiment of the present invention;

[0016] Figure 2 for Figure 1 The main structural diagram of the stir-fry smoke and haze removal machine is shown. DETAILED DESCRIPTION

[0017] The invention will be further described in detail below with reference to the accompanying drawings.

[0018] Figure 1 and Figure 2 A stir-fry smoke and haze collector according to an embodiment of the present invention is schematically shown.

[0019] Reference Figure 1 and Figure 2 The stir-fry smoke and haze removal machine includes a shell 1 and an oil collecting tank 2, a first cooling water tank 3, a second cooling water tank 4, a negative pressure plant fiber purification device 5, a fan 6, a positive pressure purification muffler 7 and a third cooling water tank 8, all of which are arranged in the shell 1.

[0020] A main air inlet 11 is provided at the lower portion of the housing 1. An oil collecting tank 2 is provided at the bottom end of the housing 1 and connected to the underside of the main air inlet 11. A first cooling water tank 3 is provided above the main air inlet 11. A second cooling water tank 4 is provided above the first cooling water tank 3. A negative pressure plant fiber purification device 5 is provided above and behind the second cooling water tank 4 and occupies the entire gas flow cross-section within the housing 1.

[0021] The housing 1 includes a rear panel 12, side panels 13, and a center panel 18. The side panels 13 are provided in two pieces and are fixedly connected to the ends of the rear panel 12. The rear panel 12 and side panels 13 may be integral structures. The center panel 18 is fixedly connected to the rear panel 12 and is positioned between and parallel to the two side panels 13. The first cooling water tank 3 and the second cooling water tank 4 are both fixed between the side panels 13 and the center panel 18. There are two first cooling water tanks 3 and 4, respectively, located on either side of the center panel 18. The two first cooling water tanks 3 are connected by a pipe, and the two second cooling water tanks 4 are connected by a pipe.

[0022] The first cooling water tank 3 includes a first tank body 31, a first water outlet pipe 32, and a first overflow pipe 33. The first tank body 31 is fixedly connected to the side panels 13 and the middle panel 18. One end of the first water outlet pipe 32 is connected to the first tank body 31, and the other end of the first water outlet pipe 32 is opposite to the rear panel 12 with a gap therebetween. The first water outlet pipe 32 can drain the liquid in the first tank body 31 to the rear panel 12. One end of the first overflow pipe 33 is connected to the first tank body 31, and the other end of the first overflow pipe 33 is opposite to the rear panel 12 with a gap therebetween. The first overflow pipe 33 can drain the liquid in the first tank body 31 to the rear panel 12. The liquid on the rear panel 12 can flow down the rear panel 12 into the oil collecting tank 2. The oil collecting tank 2 is connected to a drainage pipe to drain the liquid in the oil collecting tank 2.

[0023] Both the first outlet pipe 32 and the first overflow pipe 33 are connected to the upper portion of the first cooling water tank 3. Multiple first outlet pipes 32 and first overflow pipes 33 are provided and arranged horizontally. The connection point between the first outlet pipe 32 and the first tank 31 is lower than the connection point between the first overflow pipe 33 and the first tank 31. The first outlet pipe 32 directs cooling water from the first cooling water tank 3 to a point where the distance between the outlet end of the first outlet pipe 32 and the rear plate 12 is greater than the distance between the outlet end of the first overflow pipe 33 and the rear plate 12. When the liquid in the first outlet pipe 32 is ejected, it comes into contact with the rapidly ascending flue gas. The flue gas lifts some of the ejected liquid, creating an atomized effect within the housing 1. Oil and harmful substances in the flue gas mix with the water mist to form an oil-water mixture. This oil-water mixture continuously rotates and collides within the housing 1. A portion of the oil-water mixture flows down the rear plate 12 to the oil sump 2, while the remaining portion flows upward to the negative pressure plant fiber purification device 5 where it is absorbed. While cooling the flue gas, harmful substances in the flue gas are cleaned, greatly improving the purification effect.

[0024] The second cooling water tank 4 includes a second tank body 41, a second water outlet pipe 42, and a second overflow pipe 43. The second tank body 41 is fixedly connected to the side panel 13. One end of the second water outlet pipe 42 is connected to the second tank body 41, and the other end of the second water outlet pipe 42 is opposite to the rear panel 12 and can drain the liquid in the second tank body 41 to the rear panel 12. One end of the second overflow pipe 43 is connected to the second tank body 41, and the other end of the second overflow pipe 43 is connected to the first cooling water tank 3 and can drain the liquid in the second cooling water tank 4 into the first cooling water tank 3. The second water outlet pipe 42 and the second overflow pipe 43 are both fixed to the upper part of the second tank body 41. The connection point of the second water outlet pipe 42 and the second tank body 41 is lower than the connection point of the second overflow pipe 43 and the second tank body 41. The second water outlet pipe 42 and the second overflow pipe 43 are both provided in multiple pieces and are arranged horizontally.

[0025] One side of the first cooling water tank 3 is tilted to form a first fireproof baffle 34, and one side of the second cooling water tank 4 is tilted to form a second fireproof baffle 44. The longitudinal cross-sections of both the first and second cooling water tanks 3 and 4 are triangular, with a larger top and smaller bottom. The other side of the first cooling water tank 3 is tilted to avoid blocking the flue gas flow path between the main air inlet 11 and the negative pressure plant fiber purification device 5. The other side of the second cooling water tank 4 is tilted to avoid blocking the flue gas flow path between the main air inlet 11 and the negative pressure plant fiber purification device 5. During its ascent, the flue gas collides and mixes with the water jets ejected from the outlet and overflow pipes. Under the impact of the high-velocity flue gas and its high temperature, some of the water jets are blown up to form a mist of droplets and vapor. This effectively cools the flue gas. Furthermore, the droplets fully interact with the flue gas, drawing harmful substances from the flue gas into the liquid, forming an oil-water mixture. This oil-water mixture eventually flows down the rear plate 12 into the oil sump 2, where it is collected and discharged.

[0026] A third fire baffle 14 is provided above the second fire baffle 44, a first auxiliary air inlet 15 is provided between the first fire baffle 34 and the second fire baffle 44, a second auxiliary air inlet 16 is provided between the second fire baffle 44 and the third fire baffle 14, and a third auxiliary air inlet 17 is provided above the third fire baffle 14. These three auxiliary air inlets, in conjunction with the main air inlet, can completely absorb pollutants from below the stir-fry smoke and haze collector.

[0027] A third cooling water tank 8 is provided on the inner side of the third fireproof baffle 14. The third cooling water tank 8 is located above the second cooling water tank 4 and directly in front of the negative pressure plant fiber purification device 5. The two sides of the third cooling water tank 8 are detachably fixedly connected to the side panels 13 and the middle panel 18, respectively. The lower portion of the third cooling water tank 8 is connected to the upper front portion of the second cooling water tank 4 by a loose-leaf hinge. The top edge of the front panel of the third cooling water tank 8 is folded and fixed to the box body with screws (or latches) and is detachable. Its function is to cool the front part of the plant fiber purifier, be fire-resistant and flame-retardant, supply water to the water tank below, and be responsible for the plant fiber purifier and the removal and installation channel.

[0028] The third cooling water tank 8 is equipped with two to five third overflow pipes. The outlet ends of these overflow pipes connect to the second cooling water tank 4 and can divert water from the third cooling water tank 8 into the second cooling water tank 4 to supply water to the water tank below. This ensures the water level within the third tank is high enough to provide sufficient cooling water, while also replenishing the second cooling water tank 4. The third cooling water tank 8 also has a water inlet pipe connected to the tap water pipe. During operation, this inlet pipe continuously supplies water to the third cooling water tank 8. Water from the third cooling water tank 8 flows into the second cooling water tank 4 through the third overflow pipes. Some of the water flowing out of the second cooling water tank 4 flows into the first cooling water tank 3 through the second overflow pipe 43, while the remaining water is sprayed onto the rear plate 12 through the second outlet pipe 42. All of the water flowing out of the first cooling water tank 3 is sprayed onto the rear plate 12. Finally, all the downstream water is drained through the rear plate 12 into the oil sump 2 for collection.

[0029] The negative pressure plant fiber purification device 5 is located on the air inlet side of the fan 6. It includes a support plate 51, a plant fiber purifier 52, and a pressure plate 53. The plant fiber purifier 52 is located above and supported by the support plate 51. Both the support plate 51 and the plant fiber purifier 52 can be arranged in multiple units and staggered longitudinally, with each support plate 51 supporting one plant fiber purifier 52. Each plant fiber purifier 52 is independently installed and removable, facilitating installation and replacement. The pressure plate 53 is located above the topmost plant fiber purifier 52.

[0030] The stir-fry smoke and haze collector of the present invention also features a positive-pressure purification muffler 7. An air outlet 16 is located at the top of the housing 1, and the positive-pressure purification muffler 7 is connected to the air outlet 16. The positive-pressure purification muffler 7 is used to perform a final purification of the smoke exhausted by the range hood, ensuring that the purified smoke meets emission standards and can be directly discharged. Furthermore, the positive-pressure purification muffler 7 also serves as an outlet muffler. Noise generated by the fan 6 is transmitted through the air outlet 16 and then absorbed by the positive-pressure purification muffler 7, thereby reducing the overall operating noise of the range hood.

[0031] The positive pressure purification muffler 7 includes a positive pressure purification muffler shell 71, an upper cone purification absorber 72, a middle column purification absorber 73 and a lower cone purification absorber 74. The positive pressure purification muffler shell 71 is arranged vertically, the middle section of the positive pressure purification muffler shell 71 is cylindrical, and the upper and lower ends of the positive pressure purification muffler shell 71 are both gradually shrinking cones. The positive pressure purification muffler shell 71 includes an upper cone 711, a main body 712 and a lower cone 713. The upper cone purification absorber 72, the middle column purification absorber 73 and the lower cone purification absorber 74 are arranged in sequence from top to bottom in the positive pressure purification muffler shell 71. The upper cone purification absorber 72 cooperates with the upper cone 711, the middle column purification absorber 73 cooperates with the main body 712, and the lower cone purification absorber 74 cooperates with the lower cone 713. A partition is provided between the upper cone purifying absorber 72 and the middle column purifying absorber 73, and between the middle column purifying absorber 73 and the lower cone purifying absorber 74. The upper cone purifying absorber 72 and the lower cone purifying absorber 74 form a two-layer purifier structure, with a partition provided between the two layers. The middle column purifying absorber 73 is configured as a three- or four-layer purifier structure, with the apertures of the air passages of adjacent purifiers differing. A partition is provided between adjacent purifiers. The partition is provided with multiple evenly distributed through-holes, providing support and air distribution. Flue gas enters the positive pressure purifying muffler 7 from the lower end of the positive pressure purifying muffler housing 71, passes through the lower cone purifying absorber 74, and enters the middle column purifying absorber 73, with the flow cross-section gradually increasing. As it passes through the layers of the middle column purifying absorber 73, due to the inconsistent air passages, the gas flows in an S-shaped pattern between the layers, ensuring sufficient contact between the flue gas and the purifiers. After flowing from the middle column purification absorber 73 to the upper cone purification absorber 72, the flow cross section gradually decreases. The flue gas is fully purified by the positive pressure purification muffler 7 and then discharged from the top of the positive pressure purification muffler 7.

[0032] The three water tanks and the oil collecting tank 2 cooperate to play a role in fire prevention, flame retardancy and cooling, and at the same time wash and purify the flue gas, so that harmful substances such as lipid v0Cs and pM2.5 in the flue gas can be retained in the plant fiber purification absorber.

[0033] There are two third cooling water tanks 8, each located on either side of the middle plate 18. The two third cooling water tanks 8 are connected by a pipe. Two negative-pressure plant fiber purification devices 5, fans 6, and positive-pressure purification mufflers 7 are each provided. Together with the first cooling water tank 3, second cooling water tank 4, and third cooling water tank 8 on either side of the middle plate 18, they form two independently operable oil fume extraction systems. When the amount of oil fume to be purified is small, only one system on the side of the middle plate 18 can be activated. When the amount of oil fume to be purified is large, both systems can be activated simultaneously for coordinated operation.

[0034] The stir-fry smoke collector and haze remover of this invention has the following features: 1. It is compact and modular, suitable for all restaurant kitchens; 2. It uses water for cooling, ensuring the normal operation of the purifier and motor; 3. By cooling the smoke to approximately 5 to 10 degrees Celsius above room temperature, it cools down the lipid VOCs (cooking smoke), rendering them inert and retaining them in plant fibers for secondary use, achieving source control of lipid volatile organic compounds and PM. It can completely purify pollutants from cooking smoke.

[0035] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the invention.

Claims

1. Stir-fry smoke collector and haze remover, characterized by: The invention comprises a shell (1) and an oil collecting water tank (2), a first cooling water tank (3), a second cooling water tank (4), a negative pressure plant fiber purification device (5) and a fan (6), all of which are arranged in the shell (1); a main air inlet (11) is provided at the lower part of the shell (1); the oil collecting water tank (2) is arranged at the bottom end of the shell (1) and is lower than the main air inlet (11); the first cooling water tank (3) is arranged above the main air inlet (11); the second cooling water tank (4) is arranged above the first cooling water tank (3); and the negative pressure plant fiber purification device (5) is arranged above and behind the second cooling water tank (4); The housing (1) comprises a rear plate (12) and a side plate (13); the side plate (13) is provided in two pieces and is fixedly connected to both ends of the rear plate (12); the first cooling water tank (3) and the second cooling water tank (4) are both fixedly connected to the side plates (13); The second cooling water tank (4) comprises a second tank body (41), a second water outlet pipe (42) and a second overflow pipe (43); the second tank body (41) is fixedly connected to the side plate (13); one end of the second water outlet pipe (42) is connected to the second tank body (41); the other end of the second water outlet pipe (42) is opposite to the rear plate (12) and can drain the liquid in the second tank body (41) to the rear plate (12); one end of the second overflow pipe (43) is connected to the second tank body (41); the other end of the second overflow pipe (43) is connected to the first cooling water tank (3) and can drain the liquid in the second cooling water tank (4) into the first cooling water tank (3); The device further comprises a third cooling water tank (8), the third cooling water tank (8) being arranged in the housing (1) and being detachably connected to the housing (1), the third cooling water tank (8) being arranged above the second cooling water tank (4) and being located on one side of the negative pressure plant fiber purification device (5), the third cooling water tank (8) being detachably connected to the housing (1), the third cooling water tank (8) being provided with a third overflow pipe, the third overflow pipe being capable of draining liquid in the third cooling water tank (8) into the second cooling water tank (4); One side of the first cooling water tank (3) is tilted to form a first fire baffle (34), and one side of the second cooling water tank (4) is tilted to form a second fire baffle (44); The negative pressure plant fiber purification device (5) is arranged on the air inlet side of the fan (6), and the negative pressure plant fiber purification device (5) comprises a support plate (51), a plant fiber purifier (52) and a pressing plate (53); the plant fiber purifier (52) is arranged on the upper side of the support plate (51) and supported by the support plate (51); the support plate (51) and the plant fiber purifier (52) are both provided in plurality, and the pressing plate (53) is arranged on the upper side of the plant fiber purifier (52); A third fireproof baffle (14) is provided on the upper side of the second fireproof baffle (44), a first attached air inlet (15) is provided between the first fireproof baffle (34) and the second fireproof baffle (44), a second attached air inlet is provided between the second fireproof baffle (44) and the third fireproof baffle (14), and a third attached air inlet (17) is provided on the upper side of the third fireproof baffle (14).

2. The stir-fry smoke collector and haze remover according to claim 1, characterized in that: The first cooling water tank (3) comprises a first tank body (31), a first water outlet pipe (32) and a first overflow pipe (33); the first tank body (31) is fixedly connected to the side plate (13); one end of the first water outlet pipe (32) is connected to the first tank body (31); the other end of the first water outlet pipe (32) is opposite to the rear plate (12) and can drain the liquid in the first tank body (31) to the rear plate (12); one end of the first overflow pipe (33) is connected to the first tank body (31); the other end of the first overflow pipe (33) is opposite to the rear plate (12) and can drain the liquid in the first tank body (31) to the rear plate (12).

3. The stir-fry smoke collector and haze remover according to claim 2, characterized in that: The connection point between the first water outlet pipe (32) and the first box body (31) is lower than the connection point between the first overflow pipe (33) and the first box body (31), and the distance between the water outlet end of the first water outlet pipe (32) and the rear plate (12) is greater than the distance between the water outlet end of the first overflow pipe (33) and the rear plate (12).

4. The stir-fry smoke collector and haze remover according to any one of claims 2 to 3, characterized in that: The positive pressure purification muffler (7) is also included. The top of the housing (1) is provided with an air outlet. The positive pressure purification muffler (7) is connected to the air outlet. The positive pressure purification muffler (7) includes a positive pressure purification muffler housing (71), an upper cone purification absorber (72), a middle column purification absorber (73) and a lower cone purification absorber (74). The positive pressure purification muffler housing (71) is cylindrical and vertically arranged. The upper and lower ends of the positive pressure purification muffler housing (71) are both gradually shrinking cones. The upper cone purification absorber (72), the middle column purification absorber (73) and the lower cone purification absorber (74) are sequentially arranged in the positive pressure purification muffler housing (71) from top to bottom.

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