Oil fume purification device and oil fume extraction system

Abstract

The utility model belongs to the field of electrical technology, and specifically discloses an oil fume purification device and an oil fume exhaust system. The oil fume purification device includes a pipe body, an upper atomization component, a liquid storage box and a circulation component. The pipe body has an exhaust cavity; the upper atomization component includes a liquid storage container and an upper atomization component, the liquid storage container has a liquid storage cavity, and the upper atomization component is used to atomize the liquid in the liquid storage cavity to form a mist liquid and spray it into the exhaust cavity; the liquid storage box is arranged on the lower side of the pipe body and is directly opposite to the upper atomization component, the liquid storage box has an upper opening liquid storage tank, and the liquid storage tank is connected to the exhaust cavity to receive the mist liquid dripping downward; the circulation component includes a circulation pipeline connected between the liquid storage cavity and the liquid storage tank and a water pump arranged on the circulation pipeline. The oil fume exhaust system includes the above-mentioned oil fume purification device. The oil fume purification device and the oil fume exhaust system disclosed in the utility model can reduce the grease content of the exhausted oil fume, reduce the grease deposition in the exhaust pipe and the public flue, and improve the safety of the oil fume exhaust system.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to an oil fume purification device and an oil fume exhaust system. Background Art

[0002] As people's requirements for quality of life increase, equipment such as range hoods or integrated stoves that can extract oil fumes during cooking have gradually become indispensable household appliances in daily family life. They can effectively reduce the harm of cooking fumes to users and improve the cooking experience.

[0003] When a range hood or an integrated stove is extracting oil fumes, the oil fumes enter the interior of the device through the smoke outlet on the device, and are discharged into the external environment through the smoke exhaust pipe. Since oil fumes contain a lot of oil and harmful chemicals, if they are discharged directly without treatment, they will cause great harm to the environment and human body. In the prior art, a filter structure is usually set inside the smoke outlet or smoke collecting chamber of the equipment to achieve condensation filtration of the oil fume, thereby reducing the oil content of the discharged oil fume. However, the filter will only filter part of the oil, and the oil filtering effect is poor; at the same time, during the long-term oil fume extraction process, more oil will be deposited in the smoke exhaust pipe or public flue, resulting in an increase in fire safety hazards and affecting the safety of equipment use.

[0004] Therefore, there is an urgent need for an oil fume purification device and an oil fume exhaust system to solve the above technical problems. Utility Model Content

[0005] One purpose of the utility model is to provide an oil fume purification device, which can improve the oil fume purification effect and reduce the oil content of discharged oil fume.

[0006] Another object of the utility model is to provide an oil fume extraction system, which can improve the oil fume purification effect, reduce the oil content of the oil fume discharged from the exhaust pipe, reduce the accumulation of oil in the exhaust pipe or the public flue, and improve the safety of the oil fume extraction system.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A fume purification device, comprising:

[0009] A pipe body, wherein the pipe body has a smoke exhaust cavity with two ends connected therethrough;

[0010] The upper atomizing assembly comprises a liquid storage container and an upper atomizing member, wherein the liquid storage container has a liquid storage cavity, and the upper atomizing member is used to atomize the liquid in the liquid storage cavity to form mist liquid and spray it toward the smoke exhaust cavity;

[0011] A liquid storage box is arranged at the lower side of the tube body and directly faces the upper atomization assembly. The liquid storage box has an upper opening liquid storage tank, which is connected to the smoke exhaust cavity to receive the mist liquid dripping downwards.

[0012] The circulation component comprises a circulation pipeline connected between the liquid storage chamber and the liquid storage tank and a water pump arranged on the circulation pipeline.

[0013] As an optional technical solution for an oil fume purification device, the upper atomizing element is a first ultrasonic atomizer;

[0014] And / or, at least two upper atomizing members are arranged at intervals along the axial direction and / or circumferential direction of the tube body.

[0015] As an optional technical solution for an oil fume purification device, a mist liquid inlet is provided on the upper side of the tube body, a liquid outlet is provided on the lower side of the tube body, an upper atomizing component, a liquid storage tank and a circulation component are all installed on the outside of the tube body, and the upper atomizing component sprays mist liquid into the smoke exhaust chamber through the mist liquid inlet, and the liquid outlet is connected to the liquid storage tank.

[0016] As an optional technical solution for an oil fume purification device, the liquid storage container includes a liquid storage box portion with an opening at one end and a cover portion arranged at the open end of the liquid storage box portion, the upper atomizer is installed on the cover portion, and the cover portion is an arc-shaped structure that fits the outer side of the tube body.

[0017] As an optional technical solution for an oil fume purification device, a spray port is provided on the cover plate portion, and a mounting boss is convexly provided on the inner side of the cover plate portion. The mounting boss and the spray port are arranged one-to-one in correspondence with the upper atomizing component. A mounting groove is provided on the mounting boss, and the upper atomizing component is installed in the mounting groove. The mounting groove, the spray port and the mist liquid inlet are connected in sequence.

[0018] As an optional technical solution for the oil fume purification device, the end surface of the opening of the liquid storage box is an arc-shaped surface that fits the outer side surface of the tube body;

[0019] And / or, the liquid storage box includes an outer box and an inner box, the outer box is installed outside the tube body, the inner box is drawable and arranged on the outer box, and the inner box has a liquid storage tank.

[0020] As an optional technical solution for an oil fume purification device, the oil fume purification device also includes a lower atomizer, which is installed on a liquid storage tank. The lower atomizer can atomize the liquid in the liquid storage tank to form mist liquid and spray it upward into the smoke exhaust chamber.

[0021] As an optional technical solution for the oil fume purification device, a side of the liquid storage box facing away from the tube body is inwardly recessed to form a mounting groove, and an atomization opening connected to the liquid storage tank is opened at the bottom of the mounting groove, and the lower atomizer is installed in the mounting groove and arranged directly opposite the atomization opening;

[0022] And / or, at least two lower atomizers are arranged at intervals along the circumferential direction and / or axial direction of the tube body;

[0023] And / or, the lower nebulizer is a second ultrasonic nebulizer.

[0024] As an optional technical solution for an oil fume purification device, the opening of the liquid storage tank is covered with a filter.

[0025] As an optional technical solution of the oil fume purification device, the oil fume purification device also includes a centrifugal separation component, which is rotatably installed inside the tube body and is located downstream of the upper atomization component.

[0026] As an optional technical solution for an oil fume purification device, a centrifugal separation assembly includes an impeller, which can rotate relative to a tube body. An oil drain port is provided on the lower side wall of the tube body. The oil drain port is connected to the rotating space of the impeller, and the oil drain port is connected to a liquid storage tank through an oil drain pipe.

[0027] As an optional technical solution for an oil fume purification device, the tube body includes an atomization pipe section and a separation pipe section which are coaxially connected. The upper atomization assembly, liquid storage tank and circulation assembly are all arranged on the atomization pipe section, the centrifugal separation assembly is arranged on the separation pipe section, and the atomization pipe section and the separation pipe section are welded or detachably connected.

[0028] A fume extraction system comprises a fume exhaust pipe and the above fume purification device, wherein the pipe body is coaxially connected to the fume exhaust pipe.

[0029] As an optional technical solution for an oil fume extraction system, the pipe body and the exhaust pipe are detachably sealed and connected or welded.

[0030] The beneficial effects of the utility model are:

[0031] The utility model provides an oil fume purification device, which is provided with an upper atomizing component so that the upper atomizing component can spray mist liquid into the smoke exhaust chamber through the upper atomizing piece, thereby making the small particles of mist liquid contact and combine with grease to form large droplets through the contact between the mist liquid and the oil fume, which is beneficial to realize the separation between the liquid and gas with larger weight, and reduces the probability of liquid being discharged with the smoke, thereby reducing the grease content in the exhaust gas and reducing the pollution of the exhaust smoke to the environment; by arranging a liquid storage box on the lower side of the tube body, large droplets drip downward into the liquid storage box under the action of Brownian effect, gravity and the like, so as to realize liquid collection and reduce the accumulation of grease inside the tube body; furthermore, by arranging a circulation component, the circulation of liquid between the liquid storage container and the liquid storage box can be realized, thereby reducing the demand for the volume of the liquid storage container while ensuring the atomization effect and the duration of atomization, reducing the volume of the oil fume purification device, and reducing the use cost of the oil fume purification device.

[0032] The oil fume extraction system provided by the utility model can improve the purification effect of oil fume in the exhaust pipe by adopting the above-mentioned oil fume purification device, reduce the oil content discharged from the exhaust pipe, and thus reduce pollution to the environment; at the same time, it can also reduce the accumulation of oil in the exhaust pipe or the public flue, and improve the safety of the use of the oil fume extraction system. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the oil fume purification device provided in the first embodiment of the utility model;

[0034] Figure 2 is a cross-sectional view of the oil fume purification device provided in the first embodiment of the utility model;

[0035] Figure 3 yes Figure 2 A partial enlarged view of point I in the middle;

[0036] Figure 4 yes Figure 2 A partial enlarged view of the J in the middle;

[0037] Figure 5 This is a schematic diagram of the disassembled structure of the oil fume purification device provided in the first embodiment of the utility model at a certain viewing angle;

[0038] Figure 6 This is a schematic diagram of the disassembled structure of the oil fume purification device provided in the first embodiment of the utility model from another perspective;

[0039] Figure 7 It is a cross-sectional view of the oil fume purification device provided in the second embodiment of the present utility model.

[0040] The following are marked in the figure:

[0041] 1. Upper atomizing component; 11. Liquid storage container; 111. Liquid storage box; 112. Cover plate; 1121. Spray port; 113. Liquid storage chamber; 114. Mounting boss; 12. Upper atomizing component; 2. Liquid storage box; 21. Box body; 211. Liquid storage tank; 22. Connecting plate; 23. Mounting part; 231. Mounting groove; 3. Water pump; 4. Pipe body; 41. Smoke exhaust chamber; 42. Atomizing pipe section; 421. Mist liquid inlet; 422. Liquid outlet; 43. Separation pipe section; 431. Oil drain port; 5. Circulation pipeline; 51. First pipe section; 52. Second pipe section; 6. Filter; 7. Lower atomizer; 8. Centrifugal separation component; 81. Shell; 811. Oil leakage hole; 82. Impeller; 9. Oil drain pipe. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0043] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0046] Embodiment 1

[0047] The present embodiment provides an oil fume purification device, which can be applied to an oil fume extraction system such as a range hood or an integrated stove to improve the grease separation and purification effect at the exhaust pipe, reduce the grease content of the exhausted oil fume, and reduce the pollution of the exhausted oil fume to the environment.

[0048] like Figure 1 and Figure 2As shown, the oil fume purification device includes a tube body 4, an upper atomizing assembly 1, a liquid storage tank 2 and a circulation assembly. Among them, the tube body 4 has a smoke exhaust cavity 41 with two ends connected; the upper atomizing assembly 1 includes a liquid storage container 11 and an upper atomizing member 12, the liquid storage container 11 has a liquid storage cavity 113, and the upper atomizing member 12 is used to atomize the liquid in the liquid storage cavity 113 to form mist liquid and spray it into the smoke exhaust cavity 41; the liquid storage tank 2 is arranged on the lower side of the tube body 4 and directly opposite to the upper atomizing assembly 1, and the liquid storage tank 2 has an upper opening liquid storage tank 211, and the liquid storage tank 211 is connected to the smoke exhaust cavity 41 to receive the mist liquid dripping downward; the circulation assembly includes a circulation pipeline 5 connected between the liquid storage cavity 113 and the liquid storage tank 211 and a water pump 3 arranged on the circulation pipeline 5, and the water pump 3 is used to pump the liquid in the liquid storage tank 2 into the liquid storage container 11.

[0049] The oil fume purification device provided in this embodiment is provided with an upper atomizing component 1, so that the upper atomizing component 1 can spray mist liquid into the smoke exhaust chamber 41 through the upper atomizing component 12, so that through the contact between the mist liquid and the oil fume, small particles of mist liquid and grease etc. are contacted and combined to form large droplets, which is beneficial to achieve the separation between the heavy liquid and gas, and reduce the probability of large droplets being discharged with the smoke, thereby reducing the grease content in the exhaust gas and reducing the pollution of the exhaust oil fume to the environment; by arranging a liquid storage box 2 on the lower side of the tube body 4, large droplets drip downward into the liquid storage box 2 under the action of Brownian effect, gravity, etc., so as to realize liquid collection and reduce the accumulation of grease inside the tube body 4; furthermore, by arranging a circulation component, the circulation of liquid between the liquid storage container 11 and the liquid storage box 2 can be realized, thereby reducing the volume requirement of the liquid storage container 11 while ensuring the atomization effect and the duration of atomization, reducing the volume of the oil fume purification device, and reducing the use cost of the oil fume purification device.

[0050] like Figure 2 , Figure 5 and Figure 6 As shown, in this embodiment, a mist liquid inlet 421 is provided on the upper side of the tube body 4, a liquid outlet 422 is provided on the lower side of the tube body 4, the upper atomizing component 1, the liquid storage tank 2 and the circulation component are all installed on the outside of the tube body 4, the upper atomizing component 12 sprays the mist liquid into the smoke exhaust chamber 41 through the mist liquid inlet 421, and the liquid outlet 422 is connected to the liquid storage tank 211. This arrangement can reduce the space occupied by the upper atomizing component 1, the circulation component and the liquid storage tank 2 in the smoke exhaust chamber 41, thereby reducing the smoke exhaust resistance, and is conducive to the installation of the upper atomizing component 1, the liquid storage tank 2 and the circulation component; at the same time, it also reduces the probability of oil smoke adhering to the surface of the upper atomizing component 1, the liquid storage tank 2 and the circulation component, and improves the cleaning convenience and use reliability of the oil smoke purification device.

[0051] like Figure 1As shown, the circulation pipeline 5 includes a first pipe section 51 and a second pipe section 52, wherein the first pipe section 51 is connected between the water inlet of the water pump 3 and the liquid storage tank 2, and the second pipe section 52 is connected between the water outlet of the water pump 3 and the liquid storage container 11. This arrangement allows the water pump 3 to be installed outside the liquid storage container 11 and the liquid storage tank 2, so as to improve the disassembly convenience of the water pump 3 and facilitate the sealed communication between the circulation component and the liquid storage container 11.

[0052] The first end of the first pipe section 51 is connected to the bottom of the liquid storage tank 2, so that when the water level in the liquid storage tank 2 is low, water can still be supplied to the liquid storage container 11, reducing the requirement for the minimum water level of the liquid storage tank 2. The outlet end of the second pipe section 52 is connected to the upper side of the liquid storage container 11.

[0053] The tube body 4 is a round tube structure to facilitate the connection between the tube body 4 and the smoke exhaust pipe. The liquid storage container 11 has an arc-shaped upper mounting surface, which fits the outer wall of the tube body 4 to improve the installation convenience of the liquid storage container 11 and the tube body 4 and ensure the stability and tightness of the liquid storage container 11 and the tube body 4 after installation.

[0054] In this embodiment, the tube body 4 is made of metal materials such as stainless steel to ensure the overall structural strength and rigidity of the tube body 4 and reduce the probability of deformation of the tube body 4 due to stress, thereby improving the use stability and reliability of the oil fume purification device.

[0055] like Figure 3 and Figure 5 As shown, the liquid storage container 11 includes a liquid storage box portion 111 with an open end and a cover portion 112 arranged at the open end of the liquid storage box portion 111. The upper atomizer 12 is mounted on the cover portion 112, and the cover portion 112 is an arc-shaped structure that fits the outer side of the tube body 4. That is, the cover portion 112 forms a mounting surface facing one side of the tube body 4. The cover portion 112 preferably protrudes outward from the liquid storage box portion 111 to facilitate the connection between the cover portion 112 and the tube body 4.

[0056] The upper atomizing element 12 preferably adopts a first ultrasonic atomizer, which adopts the principle of ultrasonic vibration to realize liquid atomization, has good atomization effect, and is beneficial to controlling the size of the mist liquid by controlling the power supply voltage of the first ultrasonic atomizer, thereby facilitating controlling the concentration of the mist liquid sprayed into the smoke exhaust chamber 41 according to the amount of oil smoke in the smoke exhaust chamber 41, so that the concentration of the mist liquid is adapted to the amount of oil smoke, thereby improving the oil fume purification effect while reducing the use cost of the oil fume purification device.

[0057] In other embodiments, the upper atomizing element 12 may be a nozzle or other structure capable of atomizing liquid into droplets. It is worth noting that the first ultrasonic atomizer may be an existing mature product, and this embodiment will not limit or elaborate on the structure of the first ultrasonic atomizer.

[0058] In this embodiment, at least two first ultrasonic atomizers are arranged at intervals along the axial direction of the tube body 4 to increase the range of the upper atomizing assembly 1 spraying the mist liquid, thereby increasing the effect of oil fume purification. In another embodiment, at least two first ultrasonic atomizers may be arranged at intervals along the circumference of the tube body 4. In another embodiment, the first ultrasonic atomizers may be arranged at intervals along the circumference of the tube body 4 in at least two rows, each row including at least two first ultrasonic atomizers arranged at intervals along the axial direction of the tube body 4.

[0059] In order to realize the installation of the first ultrasonic atomizer on the liquid storage container 11, a spray port 1121 is provided on the cover plate portion 112, and a mounting boss 114 is convexly provided on the inner side of the cover plate portion 112. The mounting boss 114 and the spray port 1121 are arranged one-to-one with the upper atomizing element 12. The mounting boss 114 is provided with a mounting groove, and the upper atomizing element 12 is installed in the mounting groove. The mounting groove, the spray port 1121 and the mist liquid inlet 421 are connected in sequence. The arrangement of the mounting boss 114 with the mounting groove is conducive to the installation and positioning of the first ultrasonic atomizer on the cover plate portion 112, and ensures the installation efficiency and installation reliability of the first ultrasonic atomizer.

[0060] In order to improve the convenience of disassembly and assembly of the first ultrasonic atomizer, the cover plate portion 112 and the liquid storage box portion 111 are detachably connected, and the connection method can be screw connection or clamping to ensure the stability of the cover plate portion 112 and the liquid storage box portion 111 after installation. A sealing structure such as a sealing ring or a sealant is provided at the joint position of the cover plate portion 112 and the liquid storage box portion 111 to prevent leakage of the liquid storage container 11. The specific connection and sealing structure of the cover plate portion 112 and the liquid storage box portion 111 can be set with reference to the existing structure, and will not be repeated here.

[0061] The mist liquid inlet 421 is arranged one-to-one corresponding to the first ultrasonic atomizer to reduce the size of a single mist liquid inlet 421, thereby reducing the area of ​​the opening on the tube body 4, which is beneficial to ensure the structural strength and rigidity of the tube body 4.

[0062] In this embodiment, the size of the liquid outlet 422 is adapted to the upper opening of the liquid tank 211 to ensure that the droplets dripping downward can fall into the liquid tank 211, reducing the probability of the droplets acting on the inner wall of the tube body 4, thereby reducing the amount of grease attached to the inside of the tube body 4. The opening size of the liquid outlet 422 can be specifically set according to the spraying range of the mist liquid of the upper atomization assembly 1, and the utility model does not limit this.

[0063] like Figure 4 and Figure 5As shown, in this embodiment, the end face where the opening of the liquid storage box 2 is located is an arc-shaped surface that fits with the outer side of the tube body 4, so as to improve the convenience of the liquid storage box 2 and the tube body 4, and improve the tightness of the connection between the liquid storage box 2 and the tube body 4. Specifically, the liquid storage box 2 includes a box body 21 with an opening at the upper end, and a connecting plate portion 22 extends outward from the opening edge of the box body 21. The connecting plate portion 22 and the opening end face of the box body 21 are arc-shaped structures, and the arc-shaped structure fits with the outer side wall of the tube body 4.

[0064] Since the liquid in the liquid storage tank 2 will be pumped into the liquid storage box portion 111 via the water pump 3, if the liquid in the liquid storage tank 2 contains more grease, it is easy for the grease to adhere to the inside of the circulation pipeline 5 and cause the liquid to flow poorly or even clog the circulation pipeline 5. In order to reduce the grease content in the liquid storage tank 2, in this embodiment, a filter screen 6 is provided at the upper opening of the liquid storage tank 2. The liquid dripping downward passes through the filter screen 6 and falls into the liquid storage tank 2, so as to filter the liquid falling back into the liquid storage tank 2, reduce the grease content of the water in the liquid storage tank 2, and thus reduce the probability of grease clogging the circulation pipeline 5 and affecting the operation of the circulation pipeline 5.

[0065] The filter screen 6 is preferably detachably connected to the liquid storage box 2 to improve the processing and cleaning convenience of the filter screen 6. In other embodiments, the filter screen 6 can be integrally arranged with the open end surface of the liquid storage box 2, or the filter screen 6 can be welded to the liquid storage box 2.

[0066] The filter screen 6 is installed on the open end surface of the box body 21 and connected to the connecting plate portion 22 to improve the installation convenience of the filter screen 6 on the liquid storage box 2. The filter screen 6 is preferably an arc-shaped mesh structure adapted to the tube body 4 to ensure that the filter screen 6 covers the liquid outlet 422.

[0067] The oil fume purification device also includes a lower atomizer 7, which is installed on the liquid storage tank 2. The lower atomizer 7 can atomize the liquid in the liquid storage tank 2 to form a mist liquid and spray it upward into the exhaust chamber 41. The setting of the lower atomizer 7 can increase the amount of mist liquid provided to the exhaust chamber 41, thereby improving the purification effect; furthermore, by setting the lower atomizer 7 and the first ultrasonic atomizer, it is convenient to control the opening and closing of the lower atomizer 7 and the first ultrasonic atomizer according to the oil fume concentration, for example, when the oil fume concentration is low, only the first ultrasonic atomizer can be started; when the oil fume concentration is high, the first ultrasonic atomizer and the lower atomizer 7 can be started at the same time, so as to adjust the amount of mist liquid sprayed into the exhaust chamber 41 according to the oil fume concentration, while ensuring the oil fume purification effect, reducing the use cost of the oil fume purification device.

[0068] In this embodiment, the lower atomizer 7 is a second ultrasonic atomizer, that is, the liquid is atomized by ultrasonic vibration. In other embodiments, the lower atomizer 7 can also be a nozzle or other structure capable of atomizing the liquid into mist liquid.

[0069] Preferably, a plurality of second ultrasonic atomizers are arranged at intervals along the axial direction of the tube body 4 to increase the amount of mist liquid sprayed by the second ultrasonic atomizer. In this embodiment, the first ultrasonic atomizer and the second ultrasonic atomizer are arranged one by one in the upper and lower parts. In other embodiments, the first ultrasonic atomizer and the second ultrasonic atomizer can also be arranged in an axially staggered manner in the tube body 4.

[0070] like Figure 4 and Figure 6 As shown, in order to improve the installation convenience of the second ultrasonic atomizer, the side of the liquid storage box 2 facing away from the inner cavity of the tube body 4 is inwardly recessed to form a mounting groove 231, and the bottom of the mounting groove 231 is provided with an atomization opening connected to the liquid storage tank 211, and the second ultrasonic atomizer is installed in the mounting groove 231 and arranged opposite to the atomization opening. The second ultrasonic atomizer is arranged in a one-to-one correspondence with the mounting groove 231. The arrangement of the mounting groove 231 is conducive to the installation and positioning of the second ultrasonic atomizer, and the connection terminal of the second ultrasonic atomizer is located outside the liquid storage box 2, which is conducive to the connection of the second ultrasonic atomizer and the installation of the second ultrasonic atomizer.

[0071] Furthermore, the mounting groove 231 is formed by an upward depression on the bottom of the liquid storage box 2, that is, a mounting portion 23 is formed inside the liquid storage box 2 corresponding to the mounting groove 231, thereby ensuring that the groove depth of the mounting groove 231 meets the installation of the second ultrasonic atomizer and reduces the requirement for the thickness of the box body 21.

[0072] In this embodiment, the first ultrasonic atomizer is a microporous atomizer, and the second ultrasonic atomizer is a ceramic atomizer.

[0073] In this embodiment, the liquid is water. In other embodiments, the liquid may also be a detergent or a mixed solution of water and detergent.

[0074] Embodiment 2

[0075] This embodiment provides an oil fume purification device, which is a further improvement on the oil fume purification device in the first embodiment, and this embodiment will not repeat the same contents as the first embodiment.

[0076] like Figure 7 As shown, in this embodiment, in order to further improve the oil fume purification effect, in this embodiment, the oil fume purification device further includes a centrifugal separation component 8, which is rotatably installed inside the tube body 4 and is located downstream of the upper atomization component 1. The centrifugal separation component 8 is used to separate the liquid containing grease and air, further reduce the grease content discharged from the tube body 4, and improve the purification effect of the oil fume.

[0077] The centrifugal separation assembly 8 includes a housing 81 and an impeller 82 installed inside the housing 81, and the impeller 82 can rotate relative to the tube body 4. That is, the impeller 82 rotates relative to the tube body 4 to throw the droplets passing through the impeller 82 toward the inner wall of the housing 81 to achieve the separation effect. In this embodiment, the housing 81 can rotate relative to the tube body 4, that is, the rotation of the housing 81 drives the impeller 82 to rotate relative to the tube body 4.

[0078] In another embodiment, the housing 81 may be fixed relative to the tube body 4, and the impeller 82 may rotate relative to the housing 81. In another embodiment, the centrifugal separation assembly 8 may not be provided with the housing 81, and the impeller 82 may be directly installed inside the tube body 4.

[0079] In order to recycle the separated waste oil, an oil discharge port 431 is opened on the lower side wall of the tube body 4 . The oil discharge port 431 is connected to the rotation space of the impeller 82 , and the oil discharge port 431 is connected to the liquid storage tank 2 through the oil discharge pipe 9 .

[0080] Specifically, an oil leakage hole 811 is opened on the side wall of the housing 81 , and the oil leakage hole 811 can be rotated to be connected with the oil discharge port 431 , and the oil discharge port 431 is connected with the liquid storage tank 2 through the oil discharge pipe 9 .

[0081] Furthermore, the tube body 4 includes a coaxially connected atomizing tube section 42 and a separating tube section 43, the upper atomizing assembly 1, the liquid storage tank 2 and the circulation assembly are all arranged on the atomizing tube section 42, the centrifugal separation assembly 8 is arranged on the separating tube section 43, and the atomizing tube section 42 is welded or detachably connected to the separating tube section 43. By arranging the atomizing tube section 42 and the separating tube section 43, the atomizing tube section 42 and the structure installed on the atomizing tube section 42 form an atomizing module, and the separating tube section 43 and the structure installed on the separating tube section 43 form a separating module. The separating module and the atomizing module can be processed and assembled separately to form a modular structure, reduce costs, and improve assembly efficiency.

[0082] Embodiment 3

[0083] This embodiment provides an oil fume purification device, and the oil fume purification device provided in this embodiment has a structure that is basically the same as that in the first embodiment, with only some differences in settings. This embodiment will no longer repeat the same structure as the first embodiment.

[0084] In this embodiment, the liquid storage box 2 includes an outer box and an inner box. The outer box is installed outside the tube body 4, and the inner box is drawable and arranged on the outer box. The inner box has a liquid storage tank 211.

[0085] That is, the oil fume purification device provided in this embodiment can be used to remove the inner box from the outer box when the liquid tank 211 needs to be cleaned or liquid needs to be added to the liquid tank 211, which can effectively improve the efficiency of cleaning and adding liquid to the liquid tank 2 and improve the ease of use of the oil fume purification device.

[0086] In this embodiment, the outer box is a box-type structure with openings on the upper end and one side. The outer box is installed on the outside of the tube body 4 by screws or welding. The inner box is pulled out through the side opening of the outer box, and the first end of the first tube section 51 is plugged and connected to the inner box.

[0087] Embodiment 4

[0088] This embodiment provides an oil fume extraction system, including the oil fume purification device in the above embodiment, and also includes an exhaust pipe, and the pipe body 4 of the oil fume purification device is coaxially connected to the exhaust pipe.

[0089] The oil fume extraction system provided in this embodiment, by adopting the above-mentioned oil fume purification device, can improve the purification effect of oil fume in the exhaust pipe, reduce the oil content discharged from the exhaust pipe, and thus reduce pollution to the environment; at the same time, it can also reduce the accumulation of oil in the exhaust pipe or the public flue, and improve the safety of the use of the oil fume extraction system.

[0090] The oil fume extraction system may be a range hood or an integrated stove, and this embodiment does not limit the specific type of the oil fume extraction system.

[0091] Furthermore, the pipe body 4 and the smoke exhaust pipe are detachably sealed and connected or welded, so that the oil fume purification device can form a modular structure relative to the smoke exhaust pipe, and can be processed and assembled separately, reducing the difficulty of installing the oil fume purification device.

[0092] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A fume purification device, characterized in that: include: A tube body (4), wherein the tube body (4) has a smoke exhaust cavity (41) with two ends connected therethrough; An upper atomizing assembly (1) comprises a liquid storage container (11) and an upper atomizing element (12), wherein the liquid storage container (11) has a liquid storage chamber (113), and the upper atomizing element (12) is used to atomize the liquid in the liquid storage chamber (113) to form mist liquid and spray it toward the smoke exhaust chamber (41); A liquid storage box (2) is arranged at the lower side of the tube body (4) and directly opposite to the upper atomization assembly (1), the liquid storage box (2) having an upper opening liquid storage tank (211), the liquid storage tank (211) being connected to the smoke exhaust chamber (41) to receive the mist liquid dripping downwards; The circulation component comprises a circulation pipeline (5) connected between the liquid storage chamber (113) and the liquid storage tank (211) and a water pump (3) arranged on the circulation pipeline (5).

2. The oil fume purification device according to claim 1, characterized in that: The upper atomizing element (12) is a first ultrasonic atomizer; And / or, at least two upper atomizing elements (12) are arranged at intervals along the axial direction and / or the circumferential direction of the tube body (4).

3. The oil fume purification device according to claim 1, characterized in that: The upper side of the tube body (4) is provided with a mist liquid inlet (421), and the lower side of the tube body (4) is provided with a liquid outlet (422). The upper atomizing component (1), the liquid storage tank (2) and the circulation component are all installed on the outside of the tube body (4). The upper atomizing component (12) sprays the mist liquid into the smoke exhaust chamber (41) through the mist liquid inlet (421), and the liquid outlet (422) is connected to the liquid storage tank (211).

4. The oil fume purification device according to claim 3, characterized in that: The liquid storage container (11) comprises a liquid storage box portion (111) with an opening at one end and a cover portion (112) arranged at the open end of the liquid storage box portion (111); the upper atomizing element (12) is mounted on the cover portion (112); and the cover portion (112) is an arc-shaped structure that fits the outer side surface of the tube body (4).

5. The oil fume purification device according to claim 4, characterized in that: The cover plate portion (112) is provided with a spray port (1121), and a mounting boss (114) is convexly provided on the inner side of the cover plate portion (112); the mounting boss (114) and the spray port (1121) are both arranged in a one-to-one correspondence with the upper atomizing component (12); the mounting boss (114) is provided with a mounting groove, and the upper atomizing component (12) is mounted in the mounting groove; the mounting groove, the spray port (1121) and the mist liquid inlet (421) are connected in sequence.

6. The oil fume purification device according to claim 3, characterized in that: The end surface of the opening of the liquid storage box (2) is an arc-shaped surface that fits the outer side surface of the tube body (4); And / or, the liquid storage box (2) comprises an outer box and an inner box, the outer box is installed outside the tube body (4), the inner box is drawably arranged on the outer box, and the inner box has the liquid storage tank (211).

7. The oil fume purification device according to claim 1, characterized in that: The oil fume purification device further comprises a lower atomizer (7), wherein the lower atomizer (7) is installed on the liquid storage tank (2), and the lower atomizer (7) is capable of atomizing the liquid in the liquid storage tank (2) to form the mist liquid and spraying it upward into the smoke exhaust chamber (41).

8. The oil fume purification device according to claim 7, characterized in that: The liquid storage box (2) is recessed inwardly on one side of the inner cavity away from the tube body (4) to form a mounting groove (231); the bottom of the mounting groove (231) is provided with an atomization opening connected to the liquid storage tank (211); the lower atomizer (7) is installed in the mounting groove (231) and is arranged facing the atomization opening; And / or, at least two lower atomizers (7) are arranged at intervals along the circumferential direction and / or axial direction of the tube body (4); And / or, the lower atomizer (7) is a second ultrasonic atomizer.

9. The oil fume purification device according to any one of claims 1 to 8, characterized in that: The opening of the liquid storage tank (211) is covered with a filter screen (6).

10. The oil fume purification device according to any one of claims 1 to 8, characterized in that: The oil fume purification device further comprises a centrifugal separation component (8), which is rotatably mounted inside the tube body (4) and is located downstream of the upper atomization component (1).

11. The oil fume purification device according to claim 10, characterized in that: The centrifugal separation component (8) comprises an impeller (82), the impeller (82) being rotatable relative to the tube body (4), the lower side wall of the tube body (4) being provided with an oil discharge port (431), the oil discharge port (431) being communicated with the rotation space of the impeller (82), and the oil discharge port (431) being communicated with the liquid storage tank (2) via an oil discharge pipe (9).

12. The oil fume purification device according to claim 10, characterized in that: The tube body (4) comprises an atomizing tube section (42) and a separating tube section (43) which are coaxially connected; the upper atomizing assembly (1), the liquid storage box (2) and the circulation assembly are all arranged on the atomizing tube section (42); the centrifugal separation assembly (8) is arranged on the separating tube section (43); and the atomizing tube section (42) and the separating tube section (43) are welded or detachably connected.

13. A fume extraction system, comprising an exhaust pipe, characterized in that: It also comprises the oil fume purification device according to any one of claims 1 to 12, wherein the tube body (4) is coaxially connected to the smoke exhaust pipe.

14. The oil fume extraction system according to claim 13, characterized in that: The pipe body (4) and the smoke exhaust pipe are detachably sealed and connected or welded.

Images