Smoke exhaust hood structure capable of automatically spraying and cleaning for kitchen equipment

Abstract

The utility model relates to the technical field of kitchen equipment, and provides a kitchen equipment smoke exhaust hood structure capable of automatically spraying and cleaning, which comprises a smoke hood main body and a control box, the bottom of the smoke hood main body is provided with a smoke inlet space for external smoke to enter, and the smoke hood main body is internally provided with a circulating assembly and a spraying assembly. The smoke exhaust hood structure comprises a smoke inlet space, a circulating assembly and a spraying assembly, the smoke inlet space is arranged in the smoke inlet space, the circulating assembly comprises an air supply space and a draught fan, the air suction face of the draught fan faces the smoke inlet space, and the spraying assembly comprises a spraying space and a self-suction fan. And meanwhile, gas in the air supply space flows downwards to supply air to a station below, the probability that the oil fume is diffused to the station is reduced, the oil fume is extruded to move towards the spraying space, and the oil fume diffused to a kitchen is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust hood structures, in particular to a smoke exhaust hood structure capable of automatic spray cleaning for kitchen equipment. Background Art

[0002] The smoke exhausted from the kitchen is mainly oil smoke. The exhaust hood uses a fan to draw out the oil smoke, and then discharges it into the atmosphere through the exhaust pipe. This solves the problem of oil fume pollution in the kitchen.

[0003] At present, the exhaust hood in the prior art usually has a centrifugal fan, so that the oil smoke is sucked up by the centrifugal fan and moves upward to the exhaust duct, and then mixed with water to cool and condense into small oil droplets, which flow along the inner wall of the hood into the control box under the action of gravity.

[0004] However, since the oil droplets in the oil fume are heavy, most of the oil fume rises slowly and will diffuse in the surroundings during the rising process. Although the centrifugal fan installed above the oil fume generation area can speed up the rising speed of the oil fume, it does not guide the diffusion of the oil fume. When the oil fume is large, some oil fume will still remain in the kitchen, causing pollution. Utility Model Content

[0005] The utility model provides an exhaust hood structure capable of automatic jet cleaning for kitchen equipment, aiming to provide a structure capable of better distributing the flow of oil smoke in the front and rear directions, reducing the diffusion of oil smoke when it enters the exhaust fan, and reducing pollution to the kitchen.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An exhaust hood structure capable of automatic spray cleaning for kitchen equipment comprises a hood body and a control box, a smoke inlet space for external smoke to enter is provided at the bottom of the hood body, a circulation component and a spray component are provided inside the hood body, the circulation component comprises an air supply space and a fan, an air suction surface of the fan faces the smoke inlet space, the air suction surface of the fan is inclined downward in the direction of the smoke inlet space and forms an angle with a vertical plane, the spray component comprises a spray space and a self-priming fan, a smoke inlet partition is provided between the spray space and the smoke inlet space, the smoke inlet partition is inclined downward in the direction of the smoke inlet space and the inclination angle is greater than the inclination angle of the fan.

[0008] Preferably, a plurality of nozzles are provided in the spray space, and a regulating valve, a fresh air outlet fan and an exhaust duct are fixedly connected to the upper end surface of the hood main body, the regulating valve is respectively connected to each of the nozzles, the fresh air outlet fan is communicated with the air supply space, the self-priming fan is located at the top of the spray space and is fixedly connected to the hood main body, an exhaust space is provided between the upper end surface of the self-priming fan and the hood main body, the exhaust space is communicated with the exhaust duct, a water baffle is provided at the bottom of the spray space, the water baffle is fixedly connected to the hood main body, the water baffle is in a funnel structure, a water outlet pipe is fixedly provided on the lower end surface of the hood main body, the water outlet pipe passes through the lowest point of the water baffle and is communicated with the spray space, and a plurality of nozzles are provided in the spray space.

[0009] Preferably, a smoke inlet partition is provided between the spray space and the smoke inlet space, and the smoke inlet partition is fixedly connected to the smoke hood main body. Strip through holes are equidistantly provided on the smoke inlet partition for connecting the smoke inlet space and the spray space. The cross-section of each strip through hole is a trapezoidal structure, the upper bottom of the strip through hole of the trapezoidal structure faces the spray space, and the lower bottom of the strip through hole of the trapezoidal structure faces the smoke inlet space.

[0010] Preferably, a fan frame is provided in the smoke hood body, the fan frame is fixedly connected to the fan, the fan frame and the smoke hood body are fixedly connected by bolts and nuts, and the front and rear ends of the fan frame are provided with a plurality of through holes for connecting the smoke inlet space and the air supply space.

[0011] Preferably, a plurality of UV lamps are arranged in the exhaust space, and a plurality of lighting lamps are arranged in the smoke hood body for illuminating the smoke inlet space.

[0012] Preferably, a control motor is fixedly provided on the upper end surface of the smoke hood body, and the control motor is electrically connected to the blower, the self-priming fan, each of the lighting lamps and the UV lamp respectively.

[0013] Preferably, a filter plate is provided on the front side of the air supply space, an activated carbon layer is provided on the bottom surface of the air supply space, and a filter screen is fixedly installed below the self-priming fan.

[0014] Preferably, the left and right end surfaces of the smoke hood body are respectively fixed with fixing shells, and the fixing shells are equidistantly provided with fixing through holes for fixing the smoke hood body to the outside world. The upper end surface of the smoke hood body is fixed with a fixing frame for hoisting the smoke hood body.

[0015] Preferably, a water inlet pipe is provided on the lower end surface of the smoke hood body, and the water inlet pipe is connected with the regulating valve. The control box comprises a control box total water outlet pipe, a control box total water inlet pipe, a control box water inlet pipe and a control box water outlet pipe. The control box water inlet pipe and the control box water outlet pipe are respectively connected with the water outlet pipe and the water inlet pipe.

[0016] The working principle and beneficial effects of the utility model are as follows: the circulation component arranged in the utility model sucks the gas in the smoke inlet space into the air supply space, so that the air pressure in the exhaust hood body is reduced, thereby increasing the rising speed of the oil smoke below, and at the same time, the gas in the air supply space flows downward to supply air to the work station below, reducing the probability of the oil smoke diffusing to the work station, and squeezing the oil smoke to move toward the spray space, further reducing the diffusion of oil smoke into the kitchen, making the working environment in the kitchen more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0021] Figure 4 for Figure 2 Sectional view of AA in the middle;

[0022] Figure 5 This is a schematic diagram of a control box in Embodiment 3 of the present utility model;

[0023] Figure 6 It is a cross-sectional view of the smoke inlet baffle in the utility model;

[0024] Figure 7 This is a schematic diagram of the main structure of Embodiment 2 of the present utility model;

[0025] Figure 8 This is a schematic diagram of the top view of the structure of Embodiment 2 of the present utility model;

[0026] In the figure: 1. Hood body; 2. Filter plate; 3. Fan; 4. Fan frame; 5. Air supply space; 6. Nozzle; 7. Smoke inlet partition; 8. Water outlet pipe; 9. Water baffle; 10. Spray space; 11. Filter; 12. Self-priming fan; 13. Exhaust space; 14. Exhaust duct; 15. Regulating valve; 16. Illuminating lamp; 17. Fresh air outlet fan; 18. Water inlet pipe; 19. UV lamp; 20. Control box; 21. Fixed frame; 22. Control motor; 23. Control box total water outlet pipe; 24. Control box total water inlet pipe; 25. Control box water inlet pipe; 26. Control box water outlet pipe; 27. Fixed shell; 28. Smoke inlet space; 29. ​​Activated carbon layer; 30. Fixed through hole. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1 to Figure 4 As shown, this embodiment proposes an exhaust hood structure for kitchen equipment that can be automatically sprayed and cleaned, including a hood body 1 and a control box 20. A regulating valve 15 and a control motor 22 are fixedly arranged on the upper end surface of the hood body 1. A smoke inlet space 28 is arranged in the hood body 1. The lower side of the smoke inlet space 28 is connected to the outside world. A circulation component and a spray component are arranged in the hood body 1.

[0030] Specifically, the circulation assembly in this embodiment includes a fan frame 4, an air supply space 5 and a fresh air outlet fan 17, the fresh air outlet fan 17 is fixedly connected to the upper end surface of the smoke hood body 1, the air supply space 5 is communicated with the fresh air outlet fan 17, the fan frame 4 is a cavity and a fan 3 is fixedly arranged, the air suction surface of the fan 3 faces the rear end surface of the fan frame 4 and is parallel, the fan frame 4 is fixedly connected to the smoke hood body 1, the fan frame 4 and the front end surface of the smoke hood body 1 are at an angle of 20 degrees and are tilted backwards, so that the air suction surface of the fan 3 faces The middle position of the quasi-smoke inlet space 28 is used to absorb the air above the smoke to reduce the air pressure of the smoke inlet space 28 to increase the speed of the smoke upflow. At the same time, the extraction position is slightly lower, which can provide additional upward flow power for the smoke. The air supply space 5 is located in front of the smoke inlet space 28. The front surface of the air supply space 5 is provided with a filter plate 2. The spray assembly includes an exhaust pipe 14 and a self-priming fan 12. The exhaust pipe 14 is fixedly connected to the upper end surface of the smoke hood body 1. A filter screen 1 is fixedly provided below the self-priming fan 12. 1, an exhaust space 13 is provided between the upper end surface of the filter 11 and the hood body 1, and the exhaust space 13 is respectively connected to each exhaust pipe 14, and a spray space 10 is provided at the lower side of the filter 11. A smoke inlet baffle 7 is provided on the front surface of the spray space 10, and the smoke inlet baffle 7 is fixedly connected to the hood body 1, and the smoke inlet baffle 7 is tilted downward toward the direction of the smoke inlet space 28, and the tilt angle is greater than the tilt angle of the fan 3, so that after the oil smoke enters the smoke inlet space 28 upward, it preferentially approaches and enters the spray space 10. To reduce the discharge of oil smoke, a water baffle 9 is provided at the bottom of the spray space 10. The water baffle 9 is funnel-shaped and fixedly connected to the hood body 1 and the smoke inlet baffle 7 respectively. A plurality of nozzles 6 are provided in the spray space 10. Each nozzle 6 is connected to the regulating valve 15. A water outlet pipe 8 and a water inlet pipe 18 are fixedly provided on the lower end surface of the hood body 1. The water outlet pipe 8 passes through the hood body 1 and the lowest point of the water baffle 9 and is connected to the spray space 10. The water inlet pipe 18 is connected to the regulating valve 15.

[0031] like Figure 5 As shown, the control box 20 includes a control box total water outlet pipe 23, a control box total water inlet pipe 24, a control box water inlet pipe 25 and a control box water outlet pipe 26. The control box water inlet pipe 25 and the control box water outlet pipe 26 are respectively connected with the water outlet pipe 8 and the water inlet pipe 18. The liquid washed with oil smoke is sent to the control box 20 through the water outlet pipe 8 for further treatment, and the treated liquid is sent back for recycling through the water inlet pipe 18, thereby ensuring the clean water quality for cleaning and saving water, while alleviating the clogging of the nozzle 6 and increasing the service life of the nozzle 6. The control box total water outlet pipe 23 and the control box total water inlet pipe 24 respectively replenish water and discharge the oil and water that cannot be treated. At the same time, an oil removal device can be provided in the control box 20 to collect and transport the sewage through the water outlet pipe 8 for treatment, and then send the clean water back for recycling after treatment.

[0032] The front and rear end surfaces of the fan frame 4 in the circulation component are provided with a plurality of through holes for connecting the smoke inlet space 28 and the air supply space 5, so that the gas in the front of the smoke inlet space 28 can flow into the air supply space 5, thereby accelerating the upward flow speed of the smoke below. At the same time, each fresh air outlet fan 17 is connected with the air supply space 5, so that the gas in the air supply space 5 flows downward, and the lower side of the air supply space 5 is connected to the outside world, so that part of the gas flowing downward passes through the filter to supply air to the workstation below, bringing a more comfortable and cool working environment to the personnel below. At the same time, the upward flow of smoke drives the air supplied from the workstation to the right rear The oil smoke flows to the spray space 10 at the rear, reducing the diffusion of oil smoke to the workstation and further accelerating the upward and backward flow of smoke, thereby reducing the oil smoke spreading around the kitchen. The self-priming fan 12 in the spray assembly faces downward to suck the gas in the spray space 10 and send it to the exhaust space 13. At the same time, the air in the spray space 10 flows upward, causing the air pressure in the spray space 10 to drop, and the oil smoke in the smoke inlet space 28 flows into the spray space 10 through the smoke inlet partition 7. Each exhaust pipe 14 is connected to the exhaust space 13 to exhaust the smoke in the exhaust space 13 to the outside.

[0033] like Figure 6 As shown, the smoke inlet partition 7 is equidistantly provided with strip-shaped through holes for connecting the smoke inlet space 28 and the spray space 10. The cross-section of each strip-shaped through hole is trapezoidal, with the upper bottom facing the spray space 10 and the lower bottom facing the smoke inlet space 28, so that the smoke can enter the spray space 10 through the strip-shaped through holes, and at the same time, the lower bottom faces inward to reduce the overflow of internal water mist.

[0034] A number of UV lamps 19 are arranged in the exhaust space 13, and each UV lamp 19 is electrically connected to the control motor 22. Through the ultraviolet irradiation of the UV lamp, the oil in the flue gas is further removed, and the discharged oil is reduced. At the same time, the UV lamp is facing the self-priming fan 12, which can decompose the oil adsorbed on the self-priming fan 12 and increase the service life and use effect of the self-priming fan 12.

[0035] A plurality of lighting lamps 16 are provided on the upper surface of the smoke inlet space 28. Each lighting lamp 16 is electrically connected to the control motor 22 and is used to illuminate the area below to facilitate the work of personnel.

[0036] A filter plate 2 is provided on the front side of the air supply space 5, and an activated carbon layer 29 is provided on the bottom of the air supply space 5 for absorbing untreated escaping oil. The filter plate 2 and the filter screen are located outside the hood body 1, which is convenient for disassembly and cleaning, while reducing oil pollution in the workstation air supply.

[0037] The left and right end surfaces of the smoke hood body 1 are respectively fixedly provided with fixing shells 27, and the fixing shells 27 are equidistantly provided with fixing through holes 30 for fixing the smoke hood body 1 to the outside world. The upper end surface of the smoke hood body 1 is fixedly provided with a fixing frame 21 for hoisting the smoke hood body 1.

[0038] In this embodiment, when the on-duty personnel start working, the control box 20 is started and the lighting lamp 16 provides lighting. At this time, the smoke flows upward into the smoke inlet space 28, and the fan 3 works to suck in the air in the upper layer of the smoke inlet space 28 and send it to the air supply space 5, so that the air pressure in the upper layer of the smoke inlet space 28 drops, causing the smoke to flow upward faster. At the same time, the self-priming fan 12 works to send clean air from the outside into the air supply space 5. At this time, the gas in the air supply space 5 flows downward to supply air to the workstation below the air supply space 5. At the same time, the smoke flows upward, driving the wind sent to the workstation to flow backward, squeezing the smoke toward the spray space 10, so that the smoke approaches the spray space 10, reducing the diffusion of oil smoke to the workstation, and further accelerating the upward and backward flow of smoke, thereby reducing the oil smoke spreading around the kitchen. At the same time, the self-priming fan 12 works, and the suction side of the self-priming fan 12 faces downward, The gas is sucked in and sent to the exhaust space 13, and at the same time, the air in the spray space 10 flows upward, causing the air pressure in the spray space 10 to drop, and the oil smoke in the smoke inlet space 28 flows into the spray space 10 through the smoke inlet baffle 7. At this time, the nozzle 6 is working, and the sprayed water mist forms a uniform and stable water mist layer in the spray space 10, adsorbs the oil droplets in the oil smoke, and falls on the water baffle 9, and flows to the water outlet pipe 8 under the action of gravity, and then enters the control box 20 through the control box water inlet pipe 25 for treatment and storage. The treated water is then sent back to the water inlet pipe 18 through the control box water outlet pipe 26 for recycling. At the same time, each UV lamp 19 works to irradiate the smoke in the exhaust space 13, further remove the oil droplets in the smoke, and then discharge it to the outside through the exhaust pipe 14. At the same time, the control box 20 can be used to adjust the regulating valve 15 according to the size of the oil and gas to increase or decrease the water spray flow of the nozzle 6.

[0039] Example 2

[0040] like Figure 7-Figure 8 As shown, based on the above-mentioned embodiment 1, this embodiment further proposes that the number of circulation components and spray components can be increased side by side to cope with multiple smoke sources, and at the same time, a horizontal adjustment rod can also be fixedly connected to the fixed frame 21 to change the horizontal height of the smoke hood body 1.

[0041] Example 3

[0042] like Figure 5 As shown, based on the above-mentioned embodiment 1, this embodiment also proposes that the outer shell of the control box 20 can be changed, while ensuring that the built-in functions of the control box 20 remain unchanged, the control box can be changed to a wall-mounted or vertical type to adapt to various kitchen environments.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fume hood structure capable of automatic jet cleaning for kitchen equipment, comprising a fume hood body (1) and a control box (20), wherein a fume inlet space (28) for external fume to enter is provided at the bottom of the fume hood body (1), wherein: The hood body (1) is provided with a circulation component and a spray component inside; The circulation component comprises an air supply space (5) and a fan (3), the air suction surface of the fan (3) faces the smoke inlet space (28), and the air suction surface of the fan (3) is inclined downward in the direction of the smoke inlet space (28) and forms an angle with a vertical plane; The spray assembly comprises a spray space (10) and a self-priming fan (12); a smoke inlet partition (7) is provided between the spray space (10) and the smoke inlet space (28); the smoke inlet partition (7) is inclined downward toward the smoke inlet space (28), and the inclination angle is greater than the inclination angle of the fan (3).

2. The fume hood structure capable of automatic jet cleaning for kitchen equipment according to claim 1, characterized in that: A plurality of nozzles (6) are arranged in the spraying space (10); a regulating valve (15), a fresh air outlet fan (17) and an exhaust pipe (14) are fixedly connected to the upper end surface of the hood body (1); the regulating valve (15) is respectively connected to each of the nozzles (6); the fresh air outlet fan (17) is connected to the air supply space (5); the self-priming fan (12) is located at the top of the spraying space (10) and is fixedly connected to the hood body (1); the upper end surface of the self-priming fan (12) is connected to the hood body (1). An exhaust space (13) is provided between the exhaust space (13) and the exhaust pipe (14). A water baffle (9) is provided at the bottom of the spray space (10). The water baffle (9) is fixedly connected to the smoke hood body (1). The water baffle (9) is a funnel structure. A water outlet pipe (8) is fixedly provided on the lower end surface of the smoke hood body (1). The water outlet pipe (8) passes through the lowest point of the water baffle (9) and is connected to the spray space (10). A plurality of nozzles (6) are provided in the spray space (10).

3. The fume hood structure capable of automatic jet cleaning for kitchen equipment according to claim 1, characterized in that: The smoke inlet baffle (7) is fixedly connected to the smoke hood body (1), and strip-shaped through holes are equidistantly arranged on the smoke inlet baffle (7) for connecting the smoke inlet space (28) and the spray space (10), and the cross-section of each strip-shaped through hole is a trapezoidal structure.

4. The fume hood structure capable of automatic jet cleaning for kitchen equipment according to claim 1, characterized in that: A fan frame (4) is provided in the smoke hood body (1), and the fan frame (4) is fixedly connected to the fan (3). The fan frame (4) and the smoke hood body (1) are fixedly connected via bolts and nuts. The front end and the rear end of the fan frame (4) are provided with a plurality of through holes for connecting the smoke inlet space (28) and the air supply space (5).

5. The fume hood structure capable of automatic jet cleaning for kitchen equipment according to claim 2, characterized in that: A plurality of UV lamps (19) are arranged in the exhaust air space (13), and a plurality of lighting lamps (16) are arranged in the smoke hood body (1) for illuminating the smoke inlet space (28).

6. The fume hood structure capable of automatic jet cleaning for kitchen equipment according to claim 5, characterized in that: A control motor (22) is fixedly arranged on the upper end surface of the smoke hood body (1), and the control motor (22) is electrically connected to the fan (3), the self-priming fan (12), each of the lighting lamps (16) and the UV lamp (19) respectively.

7. The fume hood structure capable of automatic jet cleaning for kitchen equipment according to claim 1, characterized in that: A filter plate (2) is provided on the front side of the air supply space (5), an activated carbon layer (29) is provided on the bottom surface of the air supply space (5), and a filter screen (11) is fixedly provided below the self-priming fan (12).

8. The fume hood structure capable of automatic jet cleaning for kitchen equipment according to claim 1, characterized in that: A fixing shell (27) is fixedly provided on both side end surfaces of the smoke hood body (1), and fixing through holes (30) for fixing the smoke hood body (1) to the outside are equidistantly provided on the fixing shell (27), and a fixing frame (21) is fixedly provided on the upper end surface of the smoke hood body (1).

9. The fume hood structure capable of automatic jet cleaning for kitchen equipment according to claim 2, characterized in that: The lower end surface of the smoke hood body (1) is provided with a water inlet pipe (18), and the water inlet pipe (18) is connected to the regulating valve (15). The control box (20) comprises a control box total water outlet pipe (23), a control box total water inlet pipe (24), a control box water inlet pipe (25) and a control box water outlet pipe (26). The control box water inlet pipe (25) and the control box water outlet pipe (26) are respectively connected to the water outlet pipe (8) and the water inlet pipe (18).

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