Kitchen air circulation oil fume treatment device

Abstract

The application relates to the oil fume treatment technical field and discloses a kitchen air circulation oil fume treatment device, which comprises a mounting frame, the mounting frame is fixed on a wall surface, a smoke suction cover is connected to the bottom of the mounting frame, a smoke exhaust pipe is connected to the upper end of the smoke suction cover, a collecting box is arranged at the bottom of the smoke suction cover, the smoke suction cover comprises a cover shell, a guide plate is arranged in the cover shell, a filter plate is arranged on the inner wall of the cover shell, an installation groove and a ventilation pipe are arranged in the middle of the cover shell, and a spraying device is arranged in the installation groove. The smoke exhaust pipe is arranged at the upper end of the smoke suction cover, an air suction device is connected to the outer side of the smoke exhaust pipe, a negative pressure airflow is generated in the smoke suction cover, the airflow drives the oil fume on the cooking bench to enter the smoke suction cover in an N-shaped mode, the oil fume is filtered, the air pollution is reduced, meanwhile, the ventilation pipe is arranged on the inner wall of the cover shell, the air is circulated during the exhaust of the upper end of the ventilation pipe, the oil fume is also wrapped and entrapped, and the oil fume is prevented from escaping.

Description

Technical Field

[0001] This invention relates to the field of oil fume treatment technology, and in particular to a kitchen air circulation oil fume treatment device. Background Technology

[0002] Chinese cuisine is renowned worldwide for its delicious color, aroma, and flavor. However, the cooking process generates a large amount of oil fumes. Modern medicine has proven that these fumes are harmful to human health and cause air pollution when released into the atmosphere. Current oil fume treatment devices consist of a fume hood, smoke duct, wall-mounted chimney, and a high-speed fan mounted on the roof. When the equipment is working, the fan generates negative pressure, drawing in oil fumes through the fume hood. After simple filtration, the fumes are directly discharged into the atmosphere through the wall-mounted chimney, resulting in severe air pollution and poor smoke extraction. Furthermore, the oil fumes solidify and adhere to the inside of the range hood due to temperature changes, causing pollution. If not cleaned regularly, oil drips down and pollutes the environment. Over time, disassembly and cleaning are required, making the process time-consuming, labor-intensive, and difficult to maintain.

[0003] Therefore, we have made improvements to this and proposed a kitchen air circulation and fume treatment device. Summary of the Invention

[0004] (I) The technical problem to be solved by the present invention is that the smoke extraction effect is not good, the oil fumes solidify and adhere inside the device, causing pollution and dripping downwards, polluting the environment, posing a fire hazard, and requiring disassembly and cleaning after long-term use, which is time-consuming and laborious.

[0005] (II) Technical Solution

[0006] To achieve the above-mentioned objectives, this invention provides a kitchen air circulation fume treatment device, including a mounting frame fixed to a wall. A fume hood is connected to the bottom of the mounting frame, and an exhaust pipe is connected to the upper end of the fume hood. A collection box is installed at the bottom of the fume hood. The fume hood includes a housing, with a guide plate inside and a filter plate on the inner wall of the housing. An installation groove and a ventilation pipe are formed in the middle of the housing. A spray device is installed inside the installation groove, and a water tank is connected to the upper end of the spray device. The water tank is fixed to the upper layer of the mounting frame. An air inlet pipe is connected to the upper end of the ventilation pipe, and a circulating fan is connected to the upper end of the air inlet pipe. The circulating fan penetrates the mounting frame and is installed at the upper end of the fume hood. An air outlet is formed at the bottom of the housing, and the bottom end of the ventilation pipe is connected to the air outlet. A screen is connected below the filter plate, and a baffle is connected below the guide plate.

[0007] The baffle includes a flap, which is a right-angled isosceles triangle, and the long side of the bottom end of the flap is rotatably connected to the cover. The upper end face of the flap is provided with a nozzle, which is connected to the water tank hose.

[0008] The screen is a T-shaped partition, and the edge of the horizontal plate of the screen has an upward protrusion, and the horizontal plate of the screen has a hole.

[0009] The collection box includes a sludge collection box, a cooler is installed on one side of the sludge collection box, two cooling pipes are symmetrically connected to both ends of the cooler, each cooling pipe includes a connecting column, a first cylinder is connected to both sides of the connecting column, a second cylinder is hinged to the first cylinder, and an electric push rod is connected to the middle of the first cylinder and the second cylinder.

[0010] The sewage collection box is equipped with a sewage pipe at one bottom side, with a drain pipe at one end and a slag discharge port at the other end. A rotating spiral is installed inside the sewage pipe.

[0011] The sludge collection box has a groove on its edge that connects with the air outlet, and the bottom of the groove in the collection box has a chamfer.

[0012] The spray device includes four water distribution plates, which are connected by connecting pipes. The upper end of each water distribution plate is connected to a water inlet pipe, which is fixedly connected to a water tank. The water distribution plates are attached to the outer inclined surface of the cover, and several water outlet holes are installed on the inner side of each water distribution plate. The water outlet holes are matched with the mounting groove.

[0013] The water tank is filled with an aqueous solution containing a degreasing agent.

[0014] The smoking hood is at a 45-degree angle to the horizontal plane.

[0015] (III) Beneficial Effects

[0016] The kitchen air circulation and fume treatment device provided by this invention has the following advantages:

[0017] 1. By installing an exhaust pipe at the top of the fume hood, and connecting an air extraction device to the outside of the exhaust pipe, a negative pressure airflow is generated inside the fume hood. The airflow carries the oil fumes from the stove into the interior of the fume hood in an N-shape, filtering the oil fumes and reducing air pollution. At the same time, a ventilation pipe is also installed on the inner wall of the hood. During the exhaust process at the top of the ventilation pipe, air circulation is carried out, which also traps the oil fumes and prevents them from escaping.

[0018] 2. By setting multiple filter plates on the inner wall of the casing, the oil fumes are guided by the guide plate and then blocked and separated multiple times by the filter plates. The oil removal efficiency is high, reducing the amount of oil fumes emitted into the air, thereby reducing environmental pollution. Moreover, the oil stains attached to the filter plates are detached with the oil removal solution sprayed from the water outlet and enter the inner wall of the collection box for stratified discharge. There is no need to disassemble and clean the device, increasing the amount of waste oil for secondary use and generating secondary value-added benefits.

[0019] 3. Inside the housing, there is a triangular baffle. The baffle is connected at its pivot point, allowing it to open and close. When the four baffles are aligned, they can completely block the air inlet of the housing. This facilitates the self-cleaning process of the water spray device, protecting the stove below and preventing water and oil from falling onto the stove during cleaning. The inside of the baffle is equipped with a spray nozzle, which can also spray and rinse the surface of the guide plate to prevent oil from adhering to it. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of a kitchen air circulation fume treatment device provided in this application;

[0022] Figure 2 A rear view of a kitchen air circulation fume treatment device provided in this application;

[0023] Figure 3 A cross-sectional view of a kitchen air circulation fume treatment device provided in this application;

[0024] Figure 4 A schematic diagram of a fume hood for a kitchen air circulation and fume treatment device provided in this application;

[0025] Figure 5 A schematic diagram of a collection box for a kitchen air circulation fume treatment device provided in this application;

[0026] Figure 6 A schematic diagram of a spray device for a kitchen air circulation fume treatment apparatus provided in this application;

[0027] Figure 7 A schematic diagram of the cooling pipe of a kitchen air circulation fume treatment device provided in this application;

[0028] Figure 8 A schematic diagram of a baffle for a kitchen air circulation and fume treatment device provided in this application.

[0029] In the diagram: 1. Mounting frame; 2. Fume hood; 21. Cover; 22. Filter plate; 23. Mounting slot; 24. Ventilation pipe; 25. Air outlet; 26. Guide plate; 27. Baffle; 271. Flip plate; 272. Sprayer head; 28. Screen; 3. Water tank; 4. Exhaust pipe; 5. Collection box; 51. Sludge collection box; 52. Sludge discharge pipe; 53. Spiral; 54. Refrigerator; 55. Cooling pipe; 551. Connecting column; 552. First cylinder; 553. Second cylinder; 554. Electric push rod; 6. Spraying device; 61. Water distribution plate; 62. Water outlet; 63. Connecting pipe; 64. Water inlet pipe; 7. Circulating fan; 8. Air inlet pipe. Detailed Implementation

[0030] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0031] like Figures 1-8 As shown, this embodiment proposes a kitchen air circulation fume treatment device, including a mounting bracket 1, which is fixed to the wall. A fume hood 2 is connected to the bottom of the mounting bracket 1, and an exhaust pipe 4 is connected to the upper end of the fume hood 2. A collection box 5 is installed at the bottom of the fume hood 2. The fume hood 2 includes a housing 21, with a guide plate 26 inside the housing 21 and a filter plate 22 on the inner wall of the housing 21. A mounting groove 23 and a ventilation pipe 24 are formed in the middle of the housing 21. The interior is equipped with a spray device 6, and the upper end of the spray device 6 is connected to a water tank 3. The water tank 3 is fixed to the upper layer of the mounting frame 1. The upper end of the ventilation pipe 24 is connected to an air inlet pipe 8, and the upper end of the air inlet pipe 8 is connected to a circulating fan 7. The circulating fan 7 penetrates the mounting frame 1 and is installed on the upper end of the fume hood 2. The bottom of the hood 21 is provided with an air outlet 25, and the bottom end of the ventilation pipe 24 is connected to the air outlet 25. The bottom of the filter plate 22 is connected to a screen 28, and the bottom of the guide plate 26 is connected to a baffle 27.

[0032] The baffle 27 includes a flip plate 271, which is a right-angled isosceles triangle. The long side of the bottom end of the flip plate 271 is rotatably connected to the cover 21. The upper end of the flip plate 271 is provided with a nozzle 272, which is connected to the water tank 3 hose. The baffle 27 is installed at the bottom opening of the cover 21. During the process of the baffle 27 flipping up, the flue gas is repeatedly guided by the baffle 27 and the guide plate 26 into the interior of the cover 21, which facilitates the guidance and treatment of the flue gas and prevents the flue gas from directly entering the interior of the exhaust pipe 4 through the cover 21. This increases the treatment intensity of the flue gas, removes oil stains from the flue gas, and protects the environment. When the baffle 27 is laid flat, the four baffles 27 block the air inlet of the cover 21, preventing oil stains from falling onto the bottom stove when cleaning the interior of the cover 21.

[0033] The screen 28 is a T-shaped partition, and the edge of the horizontal plate of the screen 28 has an upward protrusion. The horizontal plate of the screen 28 has a hole. The screen 28 is designed to collect the oil and water containing cleaning agent dripping from the guide plate 26 and the filter plate 22. The oil is discharged into the collection box 5 through the screen 28 and then processed by the collection box 5 to facilitate the recycling of the oil.

[0034] The collection box 5 includes a sludge collection box 51. A cooler 54 is installed on one side of the sludge collection box 51. Two cooling pipes 55 are symmetrically connected to both ends of the cooler 54. Each cooling pipe 55 includes a connecting post 551. A first cylinder 552 is connected to both sides of the connecting post 551. A second cylinder 553 is hinged to the first cylinder 552. An electric push rod 554 is connected to the middle of the first cylinder 552 and the second cylinder 553. The sludge collection box 51 is installed at the bottom of the fume hood 2 to receive and process the oil sludge cleaned inside the fume hood 2. The cooling pipes 55 are cooled by the cooler 54 to solidify the oil sludge and separate it from the aqueous solution, making it easier to discharge the aqueous solution separately. After the oil sludge solidifies on the cooling pipes 55, it is removed by opening and closing the first cylinder 552 and the second cylinder 553. The oil sludge is discharged uniformly to one end of the drain pipe 52 through the rotating cooling pipes 55 for oil recycling.

[0035] A drain pipe 52 is installed on one side of the bottom of the sludge collection box 51. One end of the drain pipe 52 is equipped with a drain pipe, and the other end of the drain pipe 52 is equipped with a slag discharge port. A rotating screw 53 is installed inside the drain pipe 52. The drain pipe 52 is installed diagonally below the sludge collection box 51 to accumulate the oil sludge cleaned out of the sludge collection box 51 and clean it outward through the screw 53, which facilitates the cleaning of the device.

[0036] The edge of the sludge collection box 51 has a groove that connects with the air outlet 25. The bottom of the groove of the collection box 5 has a chamfer. The groove at the bottom of the sludge collection box 51 is connected to the air outlet 25 to discharge the air inside the air outlet 25, which facilitates air circulation inside the kitchen.

[0037] The spray device 6 includes four water distribution plates 61, which are connected by a connecting pipe 63. The upper end of the water distribution plate 61 is connected to a water inlet pipe 64, which is fixedly connected to the water tank 3. The water distribution plate 61 is attached to the outer inclined surface of the cover 21, and several water outlet holes 62 are installed on the inner side of the water distribution plate 61. The water outlet holes 62 are matched with the mounting groove 23. The water outlet holes 62 are installed inside the ventilation pipe 24 to spray the aqueous solution inside the water distribution plate 61 onto the filter plate 22, washing away the oil stains attached to the filter plate 22, avoiding the accumulation of oil stains and ensuring the filtration effect of the filter plate 22 on oil fumes.

[0038] The interior of water tank 3 is filled with an aqueous solution containing degreasing agent. The aqueous solution is sprayed onto filter plate 22 and guide plate 26 to clean the oil stains attached to filter plate 22 and guide plate 26, thus avoiding safety hazards caused by oil accumulation.

[0039] The smoke hood 2 is at a 45-degree angle to the horizontal plane. The device is installed at an angle above the stove to absorb the oil fumes generated on the stove and prevent the oil fumes from escaping.

[0040] Specifically, when using this kitchen air circulation fume treatment device: the entire device is fixed above the kitchen stove to absorb the fumes on the stove. An air extraction device is connected to the outside of the exhaust pipe 4, creating a negative pressure airflow inside the fume hood 2. This airflow draws the fumes from the stove into the fume hood 2. Under the turbulence of the baffle 27 and guide plate 26, the fumes enter the exhaust pipe 4 in an N-shape along the side of the fume hood 2. Simultaneously, the fumes are filtered as they pass through the guide plate 26 and filter plate 22, trapping the grease. The filtered fumes are then discharged from the room through the exhaust pipe 4, while the grease adheres to the filter plate 22, ensuring clean air. A spray device 6 is installed on the outside of the housing 21. The spray device 6 penetrates the mounting groove 23, with the water outlet 62 installed above the filter plate 22. The water distribution plate 61 is connected to the water tank 3, spraying the aqueous solution containing degreasing agent stored inside the water tank 3 through the water outlet 62. The aqueous solution is sprayed onto the... The filter plate 22 is rinsed, causing the oil on the filter plate 22 to fall onto the screen 28 with the water solution and eventually enter the sludge collection box 51. Inside the sludge collection box 51, a cooling pipe 55 and a spiral 53 are installed. The cooling pipe 55 is energized to cool and separate the water solution and oil. The drain pipe on one side of the sludge collection box 51 discharges the separated water solution and leaves the cooled and solidified oil on the cooling pipe 55. The opening and closing of the cooling pipe 55 removes the solidified oil. The fallen oil is discharged to the slag discharge port at the other end of the sludge collection box 51 as the spiral 53 rotates, completing the cleaning of the device. At the same time, a baffle 27 is installed inside the cover 21. The baffle 27 is a triangular baffle. When the four baffles 27 are aligned, they can completely block the air inlet of the cover 21, which facilitates the protection of the stove below during the self-cleaning process of the water outlet 62 spray device, preventing water solution and oil from falling onto the stove during the cleaning process.

[0041] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. A kitchen air circulation fume treatment device, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is fixed to the wall. A fumigation hood (2) is connected to the bottom of the mounting bracket (1). A smoke exhaust pipe (4) is connected to the upper end of the fumigation hood (2). A collection box (5) is installed at the bottom of the fumigation hood (2). The fumigation hood (2) includes a cover (21). A guide plate (26) is provided inside the cover (21). A filter plate (22) is provided on the inner wall of the cover (21). An installation groove (23) and a ventilation pipe (24) are opened in the middle of the cover (21). A spray device (6) is installed inside the installation groove (23). A water tank (3) is connected to the upper end of the spray device (6). The ventilation pipe (24) is fixed to the upper layer of the mounting bracket (1). The upper end of the ventilation pipe (24) is connected to the air inlet pipe (8). The upper end of the air inlet pipe (8) is connected to the circulating fan (7). The circulating fan (7) penetrates the mounting bracket (1) and is installed on the upper end of the smoke hood (2). The bottom of the hood (21) is provided with an air outlet (25). The bottom end of the ventilation pipe (24) is connected to the air outlet (25). The bottom of the filter plate (22) is connected to the screen (28). The bottom of the guide plate (26) is connected to the baffle (27). The baffle (27) includes a flap (271). The flap (271) is a right-angled isosceles triangle. The bottom long side of the flap (271) is rotatably connected to the cover (21). The upper end of the flap (271) is provided with a nozzle (272). The nozzle (272) is connected to the water tank (3) hose. The screen (28) is a T-shaped partition. The edge of the horizontal plate of the screen (28) is provided with an upward protrusion. The horizontal plate of the screen (28) is provided with a leakage hole. The collection box (5) includes a sludge collection box (51). A cooler (54) is installed on one side of the sludge collection box (51). Two cooling pipes (55) are symmetrically connected to both ends of the cooler (54). The cooling pipes (55) include a connecting column (551). The connecting column (551) The first cylinder (552) is connected to both sides of the sludge collection box (551). The second cylinder (553) is hinged on the first cylinder (552). An electric push rod (554) is connected to the middle of the first cylinder (552) and the second cylinder (553). A drain pipe (52) is installed on one side of the bottom of the sludge collection box (51). One end of the drain pipe (52) is provided with a drain pipe. The other end of the drain pipe (52) is provided with a slag discharge port. A rotating spiral (53) is installed inside the drain pipe (52). The edge of the sludge collection box (51) is provided with a groove that is connected to the air outlet (25). The bottom of the groove of the collection box (5) is provided with a chamfer.

2. The kitchen air circulation and fume treatment device according to claim 1, characterized in that: The spray device (6) includes four water distribution plates (61), which are connected by a connecting pipe (63). The upper end of the water distribution plate (61) is connected to a water inlet pipe (64), which is fixedly connected to the water tank (3). The water distribution plate (61) is attached to the outer inclined surface of the cover (21), and several water outlet holes (62) are installed on the inner side of the water distribution plate (61). The water outlet holes (62) are matched with the mounting groove (23).

3. The kitchen air circulation and fume treatment device according to claim 1, characterized in that: The interior of the water tank (3) is filled with an aqueous solution containing an oil-removing agent.

4. The kitchen air circulation and fume treatment device according to claim 1, characterized in that: The smoking hood (2) is at an angle of 45 degrees to the horizontal plane.

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