Self-cleaning kitchen fume purifier

Abstract

The utility model discloses a self-cleaning type kitchen oil fume purifier which comprises a box body, an air inlet, an air outlet, an oil fume exhaust pipe, an oil fume exhaust pipe, an oil fume exhaust pipe, an oil fume exhaust pipe and an oil fume exhaust pipe, the filtering mechanism comprises a shell and a filtering layer, the shell is arranged in the box body and is close to the air inlet, a plurality of air inlet holes are formed in the air inlet side of the shell, a plurality of air outlet holes are formed in the other side of the shell, each air outlet hole is correspondingly provided with a condensation pipe, an outlet of each condensation pipe faces downwards, the filtering layer is arranged in the shell, and the filtering layer is arranged in the shell. The filter layer is formed by stacking irregular flexible coils; the spraying mechanism is correspondingly arranged above the filtering layer and is used for cleaning the filtering layer; and the exhaust mechanism is arranged in the box body and is close to the air outlet. The purifier disclosed by the utility model can be used for effectively treating oil fume and reaches the oil fume emission standard. And frequent disassembly for maintenance or cleaning is not needed, so that time and labor are saved. If maintenance is needed, only the filter layer needs to be replaced, and the maintenance cost is low.

Description

Technical Field

[0001] This utility model relates to the field of oil fume treatment technology, and in particular to a self-cleaning kitchen oil fume purifier. Background Technology

[0002] Restaurants, hotels, eateries, and other food service establishments, as well as households, generate large amounts of oily fumes during cooking and food processing. These fumes contain water vapor, oil mist, fine particulate matter, volatile substances, and odorous gases. Traditional range hoods simply discharge these fumes directly into the outdoor environment, leaving the pollutants untreated and contributing to air pollution and health risks. To reduce pollution, the fumes emitted by range hoods need to be purified. Fume purifiers, installed on the exhaust duct, treat the fumes generated during cooking, preventing harmful fumes from being directly released into the atmosphere. Common treatment processes include filtration, cooling, electrostatic filtration, water misting, and chemical methods. However, existing fume purifiers are not very effective at separating grease. Common filters such as activated carbon, molecular sieves, filter cotton, microporous filters, and filter elements are easily contaminated by grease and require frequent replacement or cleaning. Furthermore, maintaining, cleaning, and replacing the purifier is time-consuming and labor-intensive. If not handled promptly, the treatment effect of oil fumes will be unsatisfactory, and the purifier will not meet the filtration standards for oil fume emissions.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a self-cleaning kitchen fume purifier, thereby overcoming the shortcomings of fume purifiers such as unsatisfactory fume treatment effect and time-consuming and laborious cleaning and maintenance.

[0005] To achieve the above objectives, this utility model provides a self-cleaning kitchen fume purifier, comprising: a housing having an air inlet and an air outlet, the air inlet being connected to a fume exhaust pipe; a filtration mechanism including a shell and a filter layer, the shell being disposed within the housing and located near the air inlet, with multiple air inlet holes on the air inlet side and multiple air outlet holes on the other side of the shell, each air outlet corresponding to a condenser pipe with its outlet facing downwards; the filter layer being disposed within the shell, the filter layer being formed by irregularly stacked flexible coils; a spray mechanism corresponding to and located above the filter layer for cleaning the filter layer; and an exhaust mechanism disposed within the housing and located near the air outlet.

[0006] Preferably, in the above technical solution, the filter layer is formed by stacking multiple flexible steel wool balls.

[0007] Preferably, in the above technical solution, the bottom of the box is provided with a liquid collection tank, the liquid collection tank is provided with a drain outlet, and a one-way valve is provided at the drain outlet.

[0008] Preferably, in the above technical solution, the one-way valve includes a pipe body, the upper end of which is an inlet and the lower end is an outlet. A movable sealing element is provided in the middle of the pipe cavity, and the outer diameter of the upper end of the sealing element is larger than the inner diameter of the inlet.

[0009] Preferably, in the above technical solution, the spraying mechanism includes: a solution tank for holding washing liquid; a water pump located above the tank and connected to the solution tank; and a spray pipe connected to the water pump via a pipe, wherein the spray pipe is provided with multiple nozzles, correspondingly located above the filter layer.

[0010] Preferably, in the above technical solution, a flow regulating valve is provided on the pipeline between the water pump and the spray pipe.

[0011] Preferably, in the above technical solution, the exhaust mechanism includes: a motor, which is located outside the housing and mounted on the housing; a drive shaft, the upper end of which is connected to the motor and the lower end of which extends into the housing; and a cross-flow fan, which is located at the lower end of the drive shaft, inside the housing, and near the air outlet.

[0012] Preferably, in the above technical solution, the exhaust mechanism is an exhaust fan.

[0013] Preferably, in the above technical solution, an air inlet pipe is provided at the air inlet of the box, and the outlet end of the air inlet pipe extends into the box, wherein the length of the upper part of the outlet end is greater than the length of the lower part of the outlet end.

[0014] Compared with existing technologies, this utility model has the following advantages: The self-cleaning kitchen fume purifier of this utility model has a filter layer formed by irregularly stacked flexible threads, with a spray pipe at the top. As the fumes pass through the filter layer, the filter layer slows down the flow of the fumes and adsorbs solid particles in the fumes. The spray pipe sprays detergent to clean the filter layer. The filtered fume gas enters the condenser pipe, where it is condensed and the liquid is discharged. The treated fume gas is then discharged outside the casing through the exhaust mechanism, completing the fume purification process. This utility model's purifier can effectively treat fumes, meeting emission standards. It requires no frequent maintenance or cleaning, saving time and effort. If maintenance is needed, only the filter layer needs to be replaced, resulting in low maintenance costs. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the self-cleaning kitchen fume purifier according to the present invention;

[0016] Figure 2 This is a schematic diagram of the one-way valve in the self-cleaning kitchen fume purifier according to this utility model.

[0017] Explanation of key figure labels:

[0018] 1-Box body, 11-Air inlet, 12-Air outlet, 13-Liquid collection tank, 14-Drain outlet, 15-Air inlet pipe; 2-Filtering mechanism, 21-Shell, 22-Filter layer, 23-Condenser pipe; 3-Spraying mechanism, 31-Solution tank, 32-Water pump, 33-Spray pipe, 34-Flow regulating valve; 4-Exhaust mechanism, 41-Motor, 42-Drive shaft, 43-Cross-flow fan; 5-One-way valve, 51-Pipe body, 52-Liquid inlet, 53-Liquid outlet, 54-Sealing component. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0020] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0021] like Figures 1 to 2As shown, a self-cleaning kitchen fume purifier according to a specific embodiment of this utility model includes: a housing 1, a filter mechanism 2, a spray mechanism 3, and an exhaust mechanism 4. The housing 1 has an air inlet 11 on the left side and an air outlet 12 on the right side, with the air inlet 11 connected to a fume exhaust pipe. The fumes emitted by the range hood are discharged through the fume exhaust pipe and enter the housing 1 through the air inlet 11. The filter mechanism 2 is located inside the housing 1 near the air inlet 11. The filter mechanism 2 includes a housing 21 and a filter layer 22. The housing 21 is located inside the housing 1, near the air inlet 11. The left side of the housing 11 is the air inlet side, with multiple air inlet holes (not shown). The right side of the housing is the air outlet side, with multiple air outlet holes. Each air outlet hole corresponds to a condenser pipe 23, with the outlet of the condenser pipe 23 facing downwards. The fumes are condensed into liquid by the condenser pipe 23 and then discharged. The filter layer 22 is located inside the housing 11 and is formed by irregularly stacked flexible coils of yarn. The flue gas enters the filter layer 22, which slows down the flow of the flue gas. The flue gas circulates within the filter layer 22 and is then discharged through the air outlet side of the housing, entering the condenser pipe 23, where it condenses and forms liquid that flows out. A spray mechanism 3 is located above the filter layer 22 to clean it. When treating oil fumes, the flue gas passes through the filter layer 22, and some solid matter is adsorbed by the filter layer 22. The spray mechanism 3 sprays washing liquid through its spray pipes to clean the filter layer 22. The exhaust mechanism 4 is located inside the housing 1, near the air outlet 12. The treated oil fume gas is discharged outside the housing through the exhaust mechanism, completing the oil fume purification process.

[0022] Preferably, the filter layer 22 is formed by stacking multiple flexible steel wool balls. The filter layer formed by stacking steel wool balls is inexpensive, corrosion-resistant, and the spray mechanism 3 above it is easy to clean.

[0023] Preferably, the bottom of the housing 1 is provided with a liquid collection tank 13, the liquid collection tank 13 is provided with a drain outlet 14, and a one-way valve 5 is provided at the drain outlet 14. The liquid condensed by the condenser tube 23 is retained in the liquid collection tank 13 at the bottom of the housing 1, and the liquid flows out of the housing 1 through the one-way valve 5. Because the drain outlet 14 is provided with a one-way valve 5, only liquid can be discharged in one direction, and gas cannot enter the housing 1 through the one-way valve 5.

[0024] Preferably, the one-way valve 5 includes a pipe body 51, with an inlet 52 at the upper end and an outlet 53 at the lower end. A movable sealing element 54 is provided in the middle of the pipe cavity, and the outer diameter of the upper end of the sealing element 54 is larger than the inner diameter of the inlet 52. Water from the collection tank 13 flows in from the inlet 52, enters the pipe body 51, and flows out through the outlet 53. When the exhaust mechanism 4 is working, if the wind force is too strong, the wind force in the housing 1 will create an upward suction force on the one-way valve 5, causing the sealing element 54 to move upward and block the inlet 52 at its upper end, preventing wind from entering the housing 1 from the one-way valve 5. The exhaust air drawn out by the exhaust mechanism 4 is also sent in from the fume duct and discharged after being treated by the filter layer 22.

[0025] Preferably, the spraying mechanism 3 includes a solution tank 31, a water pump 32, and a spray pipe 33. The solution tank 31 is located outside the housing 1 and is used to hold the washing liquid. The water pump 32 is located above the housing 1 and communicates with the solution tank 31. The water pump 32 is also connected to the spray pipe 33. Because the water pump 32 is located outside the housing 1, it does not come into contact with the oil fumes inside the housing 1, thus extending the service life of the water pump. The spray pipe 33 is equipped with multiple nozzles (not shown in the figure) and is positioned above the filter layer 22. Preferably, a flow regulating valve 34 is provided on the pipe connecting the water pump 32 and the spray pipe 33. During operation, the water pump 32 draws the washing liquid from the solution tank 31, and the flow rate of the washing liquid is adjusted by the flow regulating valve 34. The nozzles on the spray pipe 33 spray the washing liquid, continuously cleaning the filter layer 22 and maintaining its adsorption performance. No additional disassembly and cleaning is required, making maintenance convenient and allowing for timely removal of particulate waste adsorbed by the filter layer.

[0026] Preferably, in one embodiment of the exhaust mechanism 4, the exhaust mechanism 4 includes a motor 41, a drive shaft 42, and a cross-flow fan 43. The motor 41 is located outside the housing 1 and mounted on the housing 1. The upper end of the drive shaft 42 is connected to the motor 41, and the lower end extends into the housing 1. The cross-flow fan 43 is located at the lower end of the drive shaft 42 and is located inside the housing 1, near the air outlet 12. The motor 41 drives the drive shaft 42 to rotate, which in turn drives the cross-flow fan 43 to rotate, exhausting the oily fumes treated by the filter layer 22. Because the motor 41 is located outside the housing 1 and does not come into contact with the oily fumes inside the housing 1, the motor 41 is not corroded by the oily fumes, thus extending the service life of the motor 41.

[0027] Another embodiment of the exhaust mechanism is that the exhaust mechanism is an exhaust fan.

[0028] Preferably, an air inlet 15 is provided at the air inlet 11 of the housing, and the outlet end of the air inlet 15 extends into the housing 1. The length of the upper part of the outlet end is greater than the length of the lower part. That is, the longitudinal section of the air inlet 15 has an inwardly concave arc surface at the outlet end. This design allows the oil fumes entering the housing 1 to condense into water droplets that fall directly downwards into the housing 1, without falling into the air inlet 15, thus avoiding backflow.

[0029] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A self-cleaning kitchen fume purifier, characterized in that, include: The housing has an air inlet and an air outlet, the air inlet being connected to the fume exhaust pipe; The filtration mechanism includes a housing and a filter layer. The housing is located inside the box and is positioned near the air inlet. Multiple air inlets are provided on the air inlet side, and multiple air outlets are provided on the other side of the housing. Each air outlet corresponds to a condenser tube, and the outlet of the condenser tube faces downward. The filter layer is located inside the housing and is formed by irregularly stacked flexible yarns. A spraying mechanism is disposed above the filter layer for cleaning the filter layer; as well as The exhaust mechanism is located inside the box and is positioned near the air outlet.

2. The self-cleaning kitchen fume purifier according to claim 1, characterized in that, The filter layer is formed by stacking multiple flexible steel wool balls.

3. The self-cleaning kitchen fume purifier according to claim 1, characterized in that, The bottom of the box is provided with a liquid collection tank, the liquid collection tank is provided with a drain outlet, and a one-way valve is provided at the drain outlet.

4. The self-cleaning kitchen fume purifier according to claim 3, characterized in that, The one-way valve includes a pipe body with an inlet at the upper end and an outlet at the lower end. A movable sealing element is provided in the middle of the pipe cavity, and the outer diameter of the upper end of the sealing element is larger than the inner diameter of the inlet.

5. The self-cleaning kitchen fume purifier according to claim 1, characterized in that, The spraying mechanism includes: Solution tank, used to hold washing solution; A water pump, located above the tank and connected to the solution tank; and A spray pipe is connected to the water pump via a pipeline, and the spray pipe is equipped with multiple nozzles, which are correspondingly located above the filter layer.

6. The self-cleaning kitchen fume purifier according to claim 5, characterized in that, The water pump and the spray pipe are equipped with a flow regulating valve.

7. The self-cleaning kitchen fume purifier according to claim 1, characterized in that, The exhaust system includes: The motor is located outside the housing and is mounted on the housing; A drive shaft, the upper end of which is connected to the motor, and the lower end extending into the housing; and A cross-flow fan is located at the lower end of the drive shaft, inside the housing, and near the air outlet.

8. The self-cleaning kitchen fume purifier according to claim 1, characterized in that, The ventilation mechanism is an exhaust fan.

9. The self-cleaning kitchen fume purifier according to claim 1, characterized in that, An air inlet pipe is provided at the air inlet of the housing, and the outlet end of the air inlet pipe extends into the housing. The length of the upper part of the outlet end is greater than the length of the lower part of the outlet end.

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