A fume hood type oil fume purification all-in-one machine

Abstract

This utility model discloses a fume hood-type integrated oil fume purification machine, including a fume hood and a housing fixed on the fume hood. A partition is fixed between the housing and the fume hood. An inverted cylinder is fixed on the partition around the through holes. Several smoke inlet holes are opened on the side wall of the cylinder. An oil fume separation fan is fixed on the inner wall of the housing directly above the cylinder. An oil tray is fixed on the cylinder at the bottom of the oil fume separation fan. A first oil outlet hole is opened on the partition, and a second oil outlet hole is opened on the oil tray. A spray assembly is provided on the inner wall of the housing. A condenser plate is provided inside the fume hood. An oil collection tank is provided at the bottom of the rear side wall of the fume hood. The first and second oil outlet holes are connected to the oil collection tank through pipes. A drain outlet is opened at the bottom of the oil collection tank. This device mainly adopts wet purification of oil fumes. The oil fumes and water mist are fully combined, resulting in good purification effect. It has a self-cleaning function, which can effectively extend the maintenance cycle.

Description

Technical Field

[0001] This utility model relates to the field of kitchen fume treatment equipment, and in particular to a fume hood-type integrated fume purification machine. Background Technology

[0002] Fume hood type integrated oil fume purifier is a widely used device in home kitchens and catering industry for collecting and purifying oil fumes. Currently, the most common fume hood type oil fume purifiers on the market consist of an oil fume hood, filter screen, flue, oil fume separator and purification device. Under the negative pressure suction of the fan, the oil fumes enter the flue through the oil fume hood shell, are purified by the purification device on the flue, and are discharged from the flue.

[0003] The filter screen and flue surface accumulate a lot of grease, which can affect the normal filtration and purification effect of the filter screen to some extent after prolonged use. In addition, most purification devices use electrostatic purification technology. After working for a few months, the grease will stick to the anode and cathode surfaces of the electric field. At this time, the working efficiency of the equipment will decrease or even fail. It is necessary to remove the electric field metal plate for manual cleaning, which requires frequent maintenance. This is an existing problem. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model provides a fume hood-type integrated oil fume purification machine that uses wet purification. While purifying oil fumes, the equipment can self-clean, making it less prone to oil buildup and reducing maintenance frequency.

[0005] This utility model is achieved through the following technical solution:

[0006] A fume hood type integrated oil fume purification machine includes a fume hood and a housing fixed on the fume hood. A partition is fixed between the housing and the fume hood. A through hole is opened in the middle of the partition. An inverted cylinder is fixed on the partition around the through hole. Several smoke inlets are opened on the side wall of the cylinder. An oil fume separation fan is fixed on the inner wall of the housing directly above the cylinder. An air outlet connected to the oil fume separation fan is opened on the housing. An oil tray is fixed on the cylinder at the bottom of the oil fume separation fan. A first oil outlet is opened on the partition. A second oil outlet is opened on the oil tray. A spray assembly is provided on the inner wall of the housing. A condensation plate is provided inside the fume hood. An oil collection trough is provided at the bottom of the rear side wall of the fume hood. The first oil outlet and the second oil outlet are connected to the oil collection trough through pipes. A drain outlet is opened at the bottom of the oil collection trough.

[0007] In a further optimized manner, a guide tube is fixed on the oil tray, and the guide tube is shrouded on the outside of the oil fume separation fan.

[0008] Further optimized, several spiral-shaped baffles are fixed on the side walls of both the guide tube and the cylinder.

[0009] Further optimized, the spray assembly includes a nozzle and a water supply mechanism, with two sets of nozzles fixed on each of the left and right inner walls of the housing, the nozzles facing the cylinder and the guide tube.

[0010] In a further optimized manner, the water supply mechanism includes a water storage tank, which is fixed to the housing. A water supply pipe is connected to the water storage tank, and a detergent dispenser is installed on the water supply pipe. A booster pump is connected to one side of the water storage tank, and the booster pump is connected to the nozzle via a hose.

[0011] Furthermore, the water storage tank is equipped with an electric heating plate.

[0012] Further optimized, the fume hood is provided with a condenser plate, which is inclined and the lower end of the condenser plate faces the oil collection tank.

[0013] Further optimized, the upper surface of the partition is inclined, with the lower side of the upper surface of the partition facing the rear sidewall of the housing.

[0014] The beneficial effects of this utility model are:

[0015] This device uses a wet purification process for oil fumes, allowing oil to flow out in real time and preventing the accumulation of grease. When the oil fume separator fan operates, a negative pressure is generated inside the casing. Oil fumes are blocked by the condenser plate, with large particles remaining on the plate. The fumes are then drawn into the casing through the side holes of the condenser plate and the side wall of the cylinder. Simultaneously, the nozzles inside the casing spray water, capturing oil droplets from the fumes. Large particles settle inside the casing and eventually flow into the oil collection tank. Smaller particles are carried by the airflow through the guide tube into the oil fume separator fan for further separation. The small particles and a small amount of uncaptured oil droplets are thrown onto the inner wall of the oil fume separator fan by centrifugal force, dripping down into the oil tray and finally flowing into the oil collection tank. The airflow, after multiple purification processes, is discharged from the outlet.

[0016] This new design incorporates a flow guide tube, with baffles installed on the side walls of the cylindrical tube and the flow guide tube itself. This design allows the oil fumes to flow more freely and in a more chaotic manner within the casing, enabling the oil fumes to combine more fully with the water mist and resulting in better purification.

[0017] This equipment also has a self-cleaning function. Water and cleaning agent are briefly heated in the water tank. Without oil fumes, the equipment can perform self-cleaning by intermittently and repeatedly drawing in air, which can effectively extend the maintenance cycle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention. Figure 1 .

[0020] Figure 3 This is a cross-sectional view of the present invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of the present invention. Figure 2 .

[0022] Figure 5 This is a schematic diagram of the internal structure of the present invention. Figure 3 .

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0024] Figure 7 This is a schematic diagram showing the flow direction of the oil fumes in this utility model.

[0025] In the diagram: 1. Fume hood; 11. Oil collection tank; 12. Drain outlet; 13. Control panel; 14. Pipe; 15. Condensation plate; 2. Housing; 21. Air outlet; 3. Baffle plate; 31. First oil outlet; 32. Through hole; 4. Cylinder; 5. Oil tray; 51. Second oil outlet; 6. Oil fume separation fan; 71. Nozzle; 72. Water storage tank; 73. Booster pump; 74. Detergent dosing device; 75. Water supply pipe; 8. Flow guide tube; 9. Baffle plate. Detailed Implementation

[0026] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. In the description of this invention, it should be noted that the terms "left," "right," "front," "rear," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0027] like Figures 1-7 As shown, this utility model provides a fume hood type integrated oil fume purification machine, including a fume hood 1 and a housing 2 fixed on the fume hood 1. A partition 3 is fixed between the housing 2 and the fume hood 1. A through hole 32 is opened in the middle of the partition 3. An inverted cylinder 4 is fixed on the partition 3 around the through hole 32. A plurality of smoke inlet holes are opened on the side wall of the cylinder 4. The oil fumes below the fume hood enter the housing through the smoke inlet holes on the cylinder.

[0028] An oil fume separation fan 6 is fixed on the inner wall of the casing 2 directly above the cylinder 4. An air outlet 21 connected to the oil fume separation fan 6 is provided on the casing 2. The oil fume separation fan provides power and guides the flow of oil fumes. An oil tray 5 is fixed on the cylinder 4 at the bottom of the oil fume separation fan 6. Water mist and small particles captured by the oil fume separation fan are thrown onto the inner wall of the fan under centrifugal force and eventually drip down into the oil tray. The oil tray 5 has a second oil outlet 51, through which waste liquid flows into the oil collection tank.

[0029] The inner wall of the housing 2 is equipped with a spray assembly that sprays water mist mixed with detergent or alkaline solution to capture oil fume particles and then settle them inside the housing. The partition 3 has a first oil outlet 31, and the settled waste liquid flows into the oil collection tank from the first oil outlet 31.

[0030] The fume hood 1 is equipped with a condenser plate, which can trap large oil mist particles. The bottom of the rear side wall of the fume hood 1 is provided with an oil collection tank 11. The first oil outlet 31 and the second oil outlet 51 are connected to the oil collection tank 11 through a pipe 14. The bottom of the oil collection tank 11 is provided with a drain outlet 12. Since the waste liquid of this equipment will eventually flow into the oil collection tank, the oil collection tank accumulates quickly. Therefore, it is best to connect the drain outlet to a drain pipe for direct discharge during long-term use.

[0031] In a preferred embodiment, a guide tube 8 is fixed on the oil tray 5. The guide tube 8 covers the outside of the oil fume separator fan 6. The guide tube guides the flow of oil fumes, preventing them from directly entering the fan and increasing the contact length with water mist. Several spiral baffles 9 are fixed on the side walls of both the guide tube 8 and the cylinder 4 to disrupt the oil fume airflow, further combining with water mist and improving purification capacity.

[0032] In a preferred embodiment, the spray assembly includes a nozzle 71 and a water supply mechanism. Two sets of nozzles 71 are fixed on the inner walls of the left and right sides of the housing 2. The nozzles 71 face the cylinder 4 and the guide cylinder 8. The nozzles spray water mist mixed with detergent or alkaline solution to capture oil fume particles and cause them to settle inside the housing for wet purification.

[0033] In a preferred embodiment, the water supply mechanism includes a water storage tank 72, which is fixed to the housing 2. A water supply pipe 75 is connected to the water storage tank 72, and a detergent dispenser 74 is installed on the water supply pipe 75. The detergent dispenser can add oil-removing detergent to increase the degreasing effect. A booster pump 73 is connected to one side of the water storage tank 72 to increase the water pressure. The booster pump 73 is connected to the spray head 71 through a hose. The water storage tank needs to be designed to minimize its size to accommodate the load-bearing capacity of the fume hood. Since this invention requires a continuous water supply via a pipeline, the water storage tank does not play a crucial role in the spray purification process; its actual function is in the self-cleaning process.

[0034] In a preferred embodiment, the water storage tank 72 is equipped with an electric heating plate. During self-cleaning, the water temperature is heated to 40-50 degrees Celsius to enhance the cleaning effect. During self-cleaning, the fan and booster pump operate intermittently and repeatedly, so a small-volume water storage tank is sufficient, requiring only multiple heating cycles. During self-cleaning, water is first supplied to the water storage tank via the water supply pipe, while simultaneously adding detergent to the supplied water via the detergent dispenser. The heating plate in the water storage tank heats the water to 40 degrees Celsius. Then, the booster pump operates, and the spray nozzles spray for 60 seconds. After a 2-minute interval, the fan and booster pump operate simultaneously, spraying and drawing in clean air for 60 seconds. After a 3-minute interval, water is added to the water storage tank and heated. This process is repeated 2-3 times to complete the self-cleaning process.

[0035] In a preferred embodiment, the fume hood 1 is equipped with a condenser plate 15, which can be made of metal or tempered glass. The condenser plate 15 is inclined, with its lower end facing the oil collection tank 11. The condenser plate first captures the oil fume particles, which then flow naturally into the oil collection tank. The condenser plate also has another function: during self-cleaning, water mist is sprayed onto the side wall of the cylinder and passes through the smoke inlet, which also cleans the grease on the inner wall of the cylinder. The dripping oil flows through the upper surface of the condenser plate into the oil collection tank.

[0036] In a preferred embodiment, the upper surface of the partition 3 is inclined, with the lower side of the upper surface of the partition 3 facing the rear wall of the housing 2, so that the oil sludge settled during the purification process can flow to the rear side and into the oil collection tank through the pipe.

[0037] This solution also includes a control panel 13, which is fixed to the front wall of the fume hood. It can also be set by the operator according to the actual situation. The control panel is used to control the electrical components used in this solution, including but not limited to the oil fume separation fan, booster pump, heating plate, water tank temperature sensor and water supply pipe solenoid valve, etc. The control panel can use an Intel processor, AMD processor, PLC controller, ARM processor or microcontroller. It is also used with a motherboard, memory, storage medium and power supply, etc.

[0038] All aspects not detailed in this utility model are well-known to those skilled in the art. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fume hood type integrated oil fume purification machine, comprising a fume hood and a housing fixed on the fume hood, characterized in that: A partition is fixed between the housing and the fume hood. A through hole is opened in the middle of the partition. An inverted cylinder is fixed on the partition around the through hole. Several smoke inlets are opened on the side wall of the cylinder. An oil fume separation fan is fixed on the inner wall of the housing directly above the cylinder. An air outlet connected to the oil fume separation fan is opened on the housing. An oil tray is fixed on the cylinder at the bottom of the oil fume separation fan. A first oil outlet is opened on the partition. A second oil outlet is opened on the oil tray. A spray assembly is provided on the inner wall of the housing. A condenser plate is provided inside the fume hood. An oil collection trough is provided at the bottom of the rear side wall of the fume hood. The first and second oil outlets are connected to the oil collection trough through pipes. A drain outlet is opened at the bottom of the oil collection trough.

2. The integrated fume hood type oil fume purification machine according to claim 1, characterized in that: A guide tube is fixed on the oil tray, and the guide tube is installed on the outside of the oil fume separation fan.

3. The integrated fume hood type oil fume purification machine according to claim 2, characterized in that: Several spiral-shaped baffles are fixed on the side walls of both the guide tube and the cylinder.

4. The integrated fume hood type oil fume purification machine according to claim 1, characterized in that: The spray assembly includes nozzles and a water supply mechanism. Two sets of nozzles are fixed on the inner walls of the left and right sides of the housing, and the nozzles face the cylinder and the guide tube.

5. The integrated fume purification machine of the fume hood type according to claim 4, characterized in that: The water supply mechanism includes a water storage tank, which is fixed on the machine casing. A water supply pipe is connected to the water storage tank, and a detergent dispenser is installed on the water supply pipe. A booster pump is connected to one side of the water storage tank, and the booster pump is connected to the nozzle through a hose.

6. The integrated fume hood type oil fume purification machine according to claim 5, characterized in that: The water storage tank is equipped with an electric heating plate.

7. The integrated fume hood type oil fume purification machine according to claim 1, characterized in that: The fume hood is equipped with a condenser plate, which is inclined and the lower end of the condenser plate faces the oil collection tank.

8. The integrated fume hood type oil fume purification machine according to claim 1, characterized in that: The upper surface of the partition is inclined, with the lower side of the upper surface of the partition facing the rear sidewall of the housing.

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