A water-filtering environmentally friendly range hood

Abstract

The present invention provides a water-filtering environment-friendly range hood, wherein a top oil filter unit is installed below a top smoke collecting hood unit; a left oil filter unit and a right oil filter unit are detachably and symmetrically installed below a left smoke collecting hood unit and a right smoke collecting hood unit. The top oil filter unit, the left oil filter unit and the right oil filter unit are all water adsorption filter units. The advantages are as follows: the oil smoke is first purified by water adsorption, and then enters the gas channel after dehydration, and is discharged from the exhaust pipe after pressurization. Therefore, the oil smoke will not contact the exhaust channel and the fan blades of the fan, which completely solves the technical problems that the oil smoke adheres to the exhaust channel and the fan blades, making the range hood difficult to clean and easy to damage; the air purified by the water-filtering environment-friendly range hood provided by the present invention is discharged into the external environment, and because the discharged air is clean air, it will not cause pollution to the atmosphere.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection, and in particular relates to a water-filtering environmentally friendly range hood. Background Art

[0002] Range hoods are an important and indispensable device for removing oil smoke from kitchens of every family. During the use of range hoods, there are mainly the following problems: after the range hood has been used for a period of time, a large amount of oil stains will adhere to the exhaust channel and fan blades of the range hood. Therefore, on the one hand, the range hood is not easy to clean; on the other hand, the exhaust efficiency of the range hood is reduced; in addition, a large amount of oil smoke is directly discharged into the external atmosphere, aggravating environmental pollution. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides a water-filtering environmentally friendly range hood, which can effectively solve the above problems.

[0004] The technical solution adopted by the present invention is as follows:

[0005] The present invention provides a water-filtering environment-friendly range hood, comprising a range hood body (1), wherein a fume hood (2) is installed below the range hood body (1); the fume hood (2) comprises a top fume hood unit (2.1) located at the top, and a left fume hood unit (2.2) and a right fume hood unit (2.3) symmetrically located on the left and right sides of the top fume hood unit (2.1); the top fume hood unit (2.1), the left fume hood unit (2.2) and the right fume hood unit (2.3) are integrally formed to form the fume hood (2);

[0006] The bottom of the top smoke hood unit (2.1) is provided with a first ventilation hole (2.1.1); a first water filter layer (2.1.2) is installed and covered on the inner side of the bottom of the top smoke hood unit (2.1) and located above the first ventilation hole (2.1.1); a top oil filter unit (3) is detachably installed below the top smoke hood unit (2.1); the top oil filter unit (3) comprises a top oil filter housing (3.1), the top oil filter housing (3.1) A first water injection hole (3.2) and a first oil discharge hole (3.3) are provided at the bottom, and clean water is injected into the interior of the top oil filter housing (3.1) through the first water injection hole (3.2); the bottom of the top oil filter housing (3.1) is also connected to a plurality of oil fume suction pipes (3.4), the oil fume inlet of the oil fume suction pipe (3.4) is arranged downward, and the oil fume discharge port of the oil fume suction pipe (3.4) is located below the water level of the clean water injected into the top oil filter housing (3.1);

[0007] The left fume hood unit (2.2) and the right fume hood unit (2.3) are symmetrical structures, and the left oil filter unit (4) and the right oil filter unit (5) are detachably and symmetrically installed below the left fume hood unit (2.2) and the right fume hood unit (2.3);

[0008] The left fume hood unit (2.2) has a second ventilation hole (2.2.1) at its bottom; a second water filter layer (2.2.2) is installed on the inner side of the bottom of the left fume hood unit (2.2) and located above the second ventilation hole (2.2.1);

[0009] The left oil filter unit (4) comprises a left oil filter housing (4.1), wherein the left oil filter housing (4.1) comprises a main filter tank body (4.2) located directly below the left fume hood unit (2.2) and a long filter side wall (4.3) located on the right side of the left fume hood unit (2.2); wherein the long filter side wall (4.3) is provided with a plurality of oil fume suction ports (4.3.1); a gap is provided between the long filter side wall (4.3) and the right side wall of the left fume hood unit (2.2), and the gap forms a closed oil fume conveying channel (4.3.2); the oil fume conveying channel (4.3.2) is connected to the main filter tank body (4.2) and is used for conveying the inhaled oil fume to the main filter tank body (4.2);

[0010] The bottom of the main filter tank (4.2) is provided with a second water injection hole (4.2.1) and a second oil discharge hole (4.2.2), and clean water is injected into the interior of the main filter tank (4.2) through the second water injection hole (4.2.1); the interior of the main filter tank (4.2) is staggered with a first partition (4.2.3) and a second partition (4.2.4) on the right side; wherein the first partition (4.2.3) is located on the left side of the second partition (4.2.4); through the partitioning effect of the first partition (4.2.3) and the second partition (4.2.4), the interior of the main filter tank (4.2) is divided into three chambers, which are sequentially recorded from left to right as a clean water tank (a), a first filter tank (b) and a second filter tank (c); wherein the second filter tank (c) is connected to the oil fume conveying channel (4.3.2). The oil smoke sucked from the oil smoke conveying channel (4.3.2) is absorbed onto the clean water surface in the second filter tank (c); the first filter tank (b) and the second filter tank (c) are connected, and the oil smoke filtered by the first filter tank (b) further enters the second filter tank (c) for adsorption and purification treatment; the clean water tank (a) and the first filter tank (b) are connected, and the air further purified by the first filter tank (b) enters the clean water tank (a); the clean water tank (a) passes through the second ventilation hole (2.2.1) and the second water filter layer (2.2.2), and then is connected to the left smoke hood unit (2.2), and the purified air enters through the second ventilation hole (2.2.1) and the second water filter layer (2.2.2), and then enters the left smoke hood unit (2.2), and is finally discharged into the external environment.

[0011] Preferably, the range hood body (1) comprises a first fan (1.1), a second fan (1.2), a third fan (1.3) and a smoke exhaust pipe (1.4); the top center position of the range hood body (1) is connected to the smoke exhaust pipe (1.4); the first fan (1.1) is located in the upper space of the top smoke hood unit (2.1); the second fan (1.2) and the third fan (1.3) are respectively located in the upper space of the left smoke hood unit (2.2) and the right smoke hood unit (2.3).

[0012] Preferably, the top oil filter unit (3) is detachably mounted below the top fume hood unit (2.1), which means that: the top fume hood unit (2.1) is provided with a concave socket; the top oil filter unit (3) is provided with a convex socket; and the detachable mounting is achieved by matching the concave socket and the convex socket;

[0013] The left oil filter unit (4) is detachably mounted below the left fume hood unit (2.2), which means that: the left fume hood unit (2.2) is provided with a concave socket; the left oil filter unit (4) is provided with a convex socket; and the detachable mounting is achieved by matching the concave socket and the convex socket.

[0014] Preferably, the bottom of the first partition (4.2.3) is fixed to the bottom wall of the main filter tank body (4.2), and the top of the first partition (4.2.3) is spaced from the bottom of the left smoke hood unit (2.2); and the first partition (4.2.3) is provided with a water hole; the top of the second partition (4.2.4) is suspended from the bottom of the left smoke hood unit (2.2), and the bottom of the second partition (4.2.4) is spaced from the bottom wall of the main filter tank body (4.2).

[0015] Preferably, a fiber filter is installed on the outer sides of the plurality of oil fume intake ports (4.3.1) formed on the long filtering side wall (4.3).

[0016] Preferably, the oil fume suction pipe (3.4) is designed to be S-shaped.

[0017] Preferably, the first water filtering layer (2.1.2) and the second water filtering layer (2.2.2) are water filtering sponges.

[0018] Preferably, it further comprises a control unit, the control unit comprising a main control module and a sensor module, a display module and a control panel (6) respectively connected to the main control module; the main control module is also connected to the first fan (1.1), the second fan (1.2) and the third fan (1.3); wherein the sensor module comprises a liquid level gauge respectively installed inside the top oil filter unit (3), the left oil filter unit (4) and the right oil filter unit (5).

[0019] The water-filtering environment-friendly range hood provided by the present invention has the following advantages:

[0020] (1) The oil smoke is first purified by water adsorption and then dehydrated before entering the gas channel, and then discharged from the exhaust pipe after being pressurized. Therefore, the oil smoke will not come into contact with the exhaust channel and the fan blades at all, which completely solves the technical problems that the oil smoke adheres to the exhaust channel and the fan blades, making the range hood difficult to clean and easy to damage;

[0021] (2) The air purified by the water-filtered environment-friendly range hood provided by the present invention is discharged into the external environment. Since the discharged air is clean air, it will not cause pollution to the atmosphere.

[0022] (3) The present invention adopts the method of purifying oil fume by water adsorption, which has the advantage of high oil fume purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a water-filtering environment-friendly range hood provided by the present invention when no reference numerals are added;

[0024] Figure 2 A schematic structural diagram of a water-filtering environment-friendly range hood provided by the present invention when adding reference numerals;

[0025] Figure 3 for Figure 1 Schematic diagram on the left. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] The present invention provides a water-filtered environmentally friendly range hood, which can effectively solve the technical problems and emission pollution problems of the prior art that oil smoke is easy to adhere to the oil smoke exhaust channel and the fan blades, making the range hood difficult to clean and easy to damage. Figure 1-Figure 3 The water-filtered environment-friendly range hood comprises a range hood body 1, which comprises at least one fan and a smoke exhaust pipe 1.4. In the drawings of the present invention, three fans are provided, namely, a first fan 1.1, a second fan 1.2 and a third fan 1.3; the top center of the range hood body 1 is connected to the smoke exhaust pipe 1.4, which is a pipe that is finally discharged to the external environment. A smoke hood 2 is installed below the range hood body 1; the smoke hood 2 includes a top smoke hood unit 2.1 located at the top and a left smoke hood unit 2.2 and a right smoke hood unit 2.3 symmetrically located on the left and right sides of the top smoke hood unit 2.1; the top smoke hood unit 2.1, the left smoke hood unit 2.2 and the right smoke hood unit 2.3 form the smoke hood 2 in one piece; in the accompanying drawings of the present invention, the first fan 1.1 is located in the upper space of the top smoke hood unit 2.1; the second fan 1.2 and the third fan 1.3 are respectively located in the upper space of the left smoke hood unit 2.2 and the right smoke hood unit 2.3.

[0028] In the present invention, a set of oil filter units are independently configured for the top smoke hood unit 2.1, the left smoke hood unit 2.2 and the right smoke hood unit 2.3, which are used to filter the oil smoke generated by the stove with water, so that the water adsorbs the oil smoke particle molecules in the air to purify the air, and then the purified air enters the range hood body. Since the air entering the range hood body is purified air, it will not pollute the fan in the range hood body, nor will it pollute the external environment.

[0029] The top oil filter unit, the left oil filter unit and the right oil filter unit are described in detail below:

[0030] 1. Top oil filter unit

[0031] A first ventilation hole 2.1.1 is provided at the bottom of the top fume hood unit 2.1; a first water filter layer 2.1.2, such as a water filter sponge, is installed and covered on the inner side of the bottom of the top fume hood unit 2.1 and above the first ventilation hole 2.1.1.

[0032] The top oil filter unit 3 is detachably installed below the top smoke hood unit 2.1; here, the detachable installation may specifically be: the top smoke hood unit 2.1 is provided with a concave socket; the top oil filter unit 3 is provided with a convex socket; and the detachable installation is achieved by matching the concave socket and the convex socket.

[0033] The top oil filter unit 3 includes a top oil filter housing 3.1, and the bottom of the top oil filter housing 3.1 is provided with a first water injection hole 3.2 and a first oil discharge hole 3.3. Clean water is injected into the top oil filter housing 3.1 through the first water injection hole 3.2; the purpose of the first oil discharge hole is: when the oil adsorbed in the top oil filter housing exceeds a certain liquid level, the water with floating oil stains is discharged outward through the first oil discharge hole to achieve the purpose of replacing clean water. The bottom of the top oil filter housing 3.1 is also connected to a plurality of oil smoke pipes 3.4, the oil smoke inlet of the oil smoke pipe 3.4 is set downward, and the oil smoke outlet of the oil smoke pipe 3.4 is located below the water level of the clean water injected into the top oil filter housing 3.1; in actual application, the oil smoke pipe 3.4 adopts an S-bend shape design.

[0034] The working principle of the top oil filter unit is as follows: the oil smoke generated by the stove flows upward, first enters the clean water in the top oil filter shell through the oil smoke suction pipe 3.4, and is purified by the clean water to obtain clean air; then it further passes through the first water filter layer to remove water, and the clean and dry air finally enters the interior of the top smoke hood unit, and is finally discharged to the outside through the smoke exhaust pipe 1.4.

[0035] (ii) Left side oil filter unit and right side oil filter unit

[0036] The left smoke hood unit 2.2 and the right smoke hood unit 2.3 are symmetrical structures, and the left oil filter unit 4 and the right oil filter unit 5 are detachably and symmetrically installed below the left smoke hood unit 2.2 and the right smoke hood unit 2.3; the detachable installation here is specifically: taking the left smoke hood unit 2.2 as an example, the left smoke hood unit 2.2 is provided with a concave socket; the left oil filter unit 4 is provided with a convex socket; the detachable installation is achieved by matching the concave socket and the convex socket.

[0037] Since the left oil filter unit 4 and the right oil filter unit 5 are completely symmetrical structures, the present invention only takes the left oil filter unit 4 as an example for description:

[0038] The left fume hood unit 2.2 has a second ventilation hole 2.2.1 at its bottom. A second water filter layer 2.2.2, such as a water filter sponge, is installed on the inner side of the bottom of the left fume hood unit 2.2 and above the second ventilation hole 2.2.1.

[0039] The left oil filter unit 4 includes a left oil filter housing 4.1, which includes a main filter tank body 4.2 located directly below the left fume hood unit 2.2 and a long filter side wall 4.3 located on the right side of the left fume hood unit 2.2; wherein the long filter side wall 4.3 is provided with a plurality of oil fume suction ports 4.3.1; a fiber filter net is installed outside the plurality of oil fume suction ports 4.3.1 to preliminarily filter the oil fume molecules; there is a gap between the long filter side wall 4.3 and the right side wall of the left fume hood unit 2.2, and the gap forms a closed oil fume conveying channel 4.3.2; the oil fume conveying channel 4.3.2 is connected to the main filter tank body 4.2, and is used to convey the inhaled oil fume to the main filter tank body 4.2;

[0040] The bottom of the main filter tank 4.2 is provided with a second water injection hole 4.2.1 and a second oil discharge hole 4.2.2, and clean water is injected into the interior of the main filter tank 4.2 through the second water injection hole 4.2.1; the interior of the main filter tank 4.2 is staggered with a first partition 4.2.3 and a second partition 4.2.4 on the right side; wherein the first partition 4.2.3 is located on the left side of the second partition 4.2.4, and the interior of the main filter tank 4.2 is divided into three chambers by the partitioning effect of the first partition 4.2.3 and the second partition 4.2.4, which are sequentially recorded as clean water tank a, first filter tank b and second filter tank c from left to right; wherein the second filter tank c and the oil fume conveying channel 4. 3.2 is connected, and the oil smoke inhaled from the oil smoke conveying channel 4.3.2 is absorbed into the clean water surface in the second filter tank c; the first filter tank b is connected with the second filter tank c, and the oil smoke filtered by the first filter tank b further enters the second filter tank c for adsorption and purification treatment; the clean water tank a is connected with the first filter tank b, and the air further purified by the first filter tank b enters the clean water tank a; the clean water tank a is connected with the left smoke hood unit 2.2 after passing through the second ventilation hole 2.2.1 and the second water filter layer 2.2.2, and the purified air enters the left smoke hood unit 2.2 after passing through the second ventilation hole 2.2.1 and the second water filter layer 2.2.2, and is finally discharged into the external environment.

[0041] In order to improve the oil removal effect, the first partition 4.2.3 and the second partition 4.2.4 are arranged in the following staggered manner: the bottom of the first partition 4.2.3 is fixed to the bottom wall of the main filter tank body 4.2, and the top of the first partition 4.2.3 is spaced from the bottom of the left smoke hood unit 2.2; and the first partition 4.2.3 is provided with a water hole; the top of the second partition 4.2.4 is suspended from the bottom of the left smoke hood unit 2.2, and the bottom of the second partition 4.2.4 is spaced from the bottom wall of the main filter tank body 4.2.

[0042] In the present invention, the left oil filter unit and the top oil filter unit have different designs because: since the smoke collecting hood 2 is placed above the stove, the smoke generated by the stove gathers into a ball and flows upward under the action of the fan. On the one hand, the smoke is sucked in and purified by the top oil filter unit; on the other hand, the smoke is sucked in and purified by the left or right oil filter unit on the side. Due to the different directions of smoke inhalation, the left oil filter unit and the top oil filter unit have different designs.

[0043] The working principle of the left oil filter unit is as follows: the oil smoke generated by the stove flows upward, first passes through the fiber filter for primary filtration, and is then sucked into the oil smoke delivery channel 4.3.2 through the oil smoke suction port 4.3.1, and then is further sucked into the clean water in the second filter tank c, and is subjected to secondary filtration by the clean water in the second filter tank c to absorb and filter out large particles of oil smoke molecules; then, the air after the secondary filtration is sucked into the first filter tank b, and is subjected to tertiary filtration by the clean water in the first filter tank b to absorb and filter out small particles of oil smoke molecules, thereby obtaining clean air; the clean air passes upward through the second ventilation hole 2.2.1 and enters the second water filter layer 2.2.2, and after being dehydrated by the second water filter layer 2.2.2, the clean and dry air finally enters the interior of the left oil filter unit, and is finally discharged to the outside through the exhaust pipe 1.4.

[0044] It also includes a control unit, which includes a main control module and a sensor module, a display module and a control panel 6 respectively connected to the main control module; the main control module is also connected to the first fan 1.1, the second fan 1.2 and the third fan 1.3; wherein the sensor module includes a level gauge installed inside the top oil filter unit 3, the left oil filter unit 4 and the right oil filter unit 5 respectively, which is used to collect the liquid level value of the liquid in the oil filter unit and transmit the liquid level value to the main control module, and the main control module controls the start and stop and speed of the fan according to the preset threshold range; and displays the current oil volume and maintenance status. When the accumulated liquid level in the filter unit reaches the set value, the operation panel will give an alarm prompt, and the waste oil will be discharged by opening the oil drain hole.

[0045] Here is a specific method of using a water-filtered environmentally friendly range hood:

[0046] (1) Before starting the fan, install the top oil filter unit, the left oil filter unit and the right oil filter unit to the top, left and right sides of the fume hood respectively. The specific connection method is the snap connection between the socket and the socket;

[0047] (2) Water is added to the top oil filter unit, the left oil filter unit and the right oil filter unit through the water injection holes. The water level is displayed on the operation panel at any time. When the set level is reached, a prompt is given to stop adding water. At this time, the motor can be started. Using the siphon principle, the oil smoke is adsorbed and purified by the clean water in the top oil filter unit, the left oil filter unit and the right oil filter unit. Since the air purified by water adsorption is humid air, in order to prevent adverse effects on the fan, the humid air is first dehydrated through a water filter sponge. Then, the dry air enters the gas channel and is discharged from the exhaust pipe after being pressurized.

[0048] It can be seen that the water-filtering environmentally friendly range hood provided by the present invention has the following advantages:

[0049] (1) The oil smoke is first purified by water adsorption and then dehydrated before entering the gas channel, and then discharged from the exhaust pipe after being pressurized. Therefore, the oil smoke will not come into contact with the exhaust channel and the fan blades at all, which completely solves the technical problems that the oil smoke adheres to the exhaust channel and the fan blades, making the range hood difficult to clean and easy to damage;

[0050] (2) The air purified by the water-filtered environment-friendly range hood provided by the present invention is discharged into the external environment. Since the discharged air is clean air, it will not cause pollution to the atmosphere.

[0051] (3) The present invention adopts the method of purifying oil fume by water adsorption, which has the advantage of high oil fume purification efficiency.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the scope of protection of the present invention.

Claims

1. A water-filtering environmentally friendly range hood, characterized in that: The range hood comprises a range hood body (1), wherein a fume hood (2) is installed below the range hood body (1); the fume hood (2) comprises a top fume hood unit (2.1) located at the top, and a left fume hood unit (2.2) and a right fume hood unit (2.3) symmetrically located on the left and right sides of the top fume hood unit (2.1); the top fume hood unit (2.1), the left fume hood unit (2.2) and the right fume hood unit (2.3) are integrally formed to form the fume hood (2); The bottom of the top smoke hood unit (2.1) is provided with a first ventilation hole (2.1.1); a first water filter layer (2.1.2) is installed and covered on the inner side of the bottom of the top smoke hood unit (2.1) and located above the first ventilation hole (2.1.1); a top oil filter unit (3) can be detachably installed below the top smoke hood unit (2.1); the top oil filter unit (3) comprises a top oil filter housing (3.1); a first water injection hole (3.2) and a first oil drain hole (3.3) are provided at the bottom of the top oil filter housing (3.1); clean water is injected into the interior of the top oil filter housing (3.1) through the first water injection hole (3.2); The bottom of the top oil filter housing (3.1) is also connected to a plurality of oil fume suction pipes (3.4), the oil fume inlet of the oil fume suction pipe (3.4) is arranged downward, and the oil fume outlet of the oil fume suction pipe (3.4) is located below the water level of the clean water injected into the top oil filter housing (3.1); The left fume hood unit (2.2) and the right fume hood unit (2.3) are symmetrical structures, and the left oil filter unit (4) and the right oil filter unit (5) can be detachably installed below the left fume hood unit (2.2) and the right fume hood unit (2.3); The left fume hood unit (2.2) has a second ventilation hole (2.2.1) at its bottom; a second water filter layer (2.2.2) is installed on the inner side of the bottom of the left fume hood unit (2.2) and located above the second ventilation hole (2.2.1); The left oil filter unit (4) comprises a left oil filter housing (4.1), wherein the left oil filter housing (4.1) comprises a main filter tank body (4.2) located directly below the left fume hood unit (2.2) and a long filter side wall (4.3) located on the right side of the left fume hood unit (2.2); wherein the long filter side wall (4.3) is provided with a plurality of oil fume suction ports (4.3.1); a gap is provided between the long filter side wall (4.3) and the right side wall of the left fume hood unit (2.2), and the gap forms a closed oil fume conveying channel (4.3.2); the oil fume conveying channel (4.3.2) is connected to the main filter tank body (4.2) and is used for conveying the inhaled oil fume to the main filter tank body (4.2); The bottom of the main filter tank (4.2) is provided with a second water injection hole (4.2.1) and a second oil discharge hole (4.2.2), and clean water is injected into the interior of the main filter tank (4.2) through the second water injection hole (4.2.1); the interior of the main filter tank (4.2) is staggered with a first partition (4.2.3) and a second partition (4.2.4) on the right side; wherein the first partition (4.2.3) is located on the left side of the second partition (4.2.4); through the partitioning effect of the first partition (4.2.3) and the second partition (4.2.4), the interior of the main filter tank (4.2) is divided into three chambers, which are sequentially recorded from left to right as a clean water tank (a), a first filter tank (b) and a second filter tank (c); wherein the second filter tank (c) is connected to the oil fume conveying channel (4.3.2). The oil smoke sucked from the oil smoke conveying channel (4.3.2) is absorbed onto the clean water surface in the second filter tank (c); the first filter tank (b) and the second filter tank (c) are connected, and the oil smoke filtered by the first filter tank (b) further enters the second filter tank (c) for adsorption and purification treatment; the clean water tank (a) and the first filter tank (b) are connected, and the air further purified by the first filter tank (b) enters the clean water tank (a); the clean water tank (a) passes through the second ventilation hole (2.2.1) and the second water filter layer (2.2.2) and is connected to the left smoke hood unit (2.2); the purified air enters through the second ventilation hole (2.2.1) and the second water filter layer (2.2.2) and enters the left smoke hood unit (2.2), and is finally discharged into the external environment. The range hood body (1) comprises a first fan (1.1), a second fan (1.2), a third fan (1.3) and a smoke exhaust pipe (1.4); the top center of the range hood body (1) is connected to the smoke exhaust pipe (1.4); the first fan (1.1) is located in the upper space of the top smoke hood unit (2.1); the second fan (1.2) and the third fan (1.3) are respectively located in the upper space of the left smoke hood unit (2.2) and the right smoke hood unit (2.3), The top oil filter unit (3) can be detachably installed below the top fume hood unit (2.1), which means that: the top fume hood unit (2.1) is provided with a concave socket; the top oil filter unit (3) is provided with a convex socket; and the detachable installation is achieved by matching the concave socket and the convex socket; The left oil filter unit (4) can be detachably installed below the left fume hood unit (2.2), which means that: the left fume hood unit (2.2) is provided with a concave socket; the left oil filter unit (4) is provided with a convex socket; and the concave socket and the convex socket are matched to achieve detachable installation. The bottom of the first partition (4.2.3) is fixed to the bottom wall of the main filter tank body (4.2), and the top of the first partition (4.2.3) is spaced from the bottom of the left smoke hood unit (2.2); and the first partition (4.2.3) is provided with a water hole; the top of the second partition (4.2.4) is suspended from the bottom of the left smoke hood unit (2.2), and the bottom of the second partition (4.2.4) is spaced from the bottom wall of the main filter tank body (4.2). A fiber filter is installed on the outer sides of the plurality of oil fume intake ports (4.3.1) formed on the long filter side wall (4.3). The oil fume suction pipe (3.4) is designed in an S-bend shape. The first water filtering layer (2.1.2) and the second water filtering layer (2.2.2) are water filtering sponges. It also includes a control unit, the control unit including a main control module and a sensor module, a display module and a control panel (6) respectively connected to the main control module; the main control module is also connected to the first fan (1.1), the second fan (1.2) and the third fan (1.3); wherein the sensor module includes a liquid level gauge respectively installed inside the top oil filter unit (3), the left oil filter unit (4) and the right oil filter unit (5).

Images