Pipeline-free clean circulation and lampblack-free purification all-in-one machine for kitchen
By using a multi-layer filtration system with a ductless design and a circulating water pump spray system, the problem of range hoods relying on external ducts for smoke exhaust has been solved, achieving efficient purification and convenient installation, thus improving kitchen air quality and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-03-31
AI Technical Summary
Existing range hoods rely on external fume ducts for exhaust, resulting in the emission of harmful substances that pollute the environment. They are also complex to install and pose a fire hazard, affecting air quality and health.
Adopting a ductless design, it utilizes a multi-layer filtration system consisting of a nano-oil fume filter, a dynamic interceptor, sintered metal felt, a high-efficiency filter, an ultra-high-efficiency filter plate, and a modified activated carbon mesh. Combined with a circulating water pump spray system and a noise reduction design, it achieves efficient purification of oil fumes and convenient installation.
It effectively removes harmful substances from cooking fumes, simplifies the installation process, reduces noise, improves user experience, ensures kitchen air quality and health, and avoids complex duct layouts.
Smart Images

Figure CN224065557U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to range hood technical field, concretely is kitchen no pipeline net circulation no oil smoke purification integrated machine. BACKGROUND
[0002] In today's kitchen appliance field, the range hood as the key equipment of guaranteeing kitchen air quality is widely applied to various residences and commercial places, however, in-depth analysis of prior art, its many drawbacks gradually highlight.
[0003] At present, most of the range hoods on the market rely on external oil fume pipeline to complete the smoke exhaust process when working, which means that the oil fume sucked by the range hood will be directly discharged into the external atmosphere through the pipeline, but the cooking oil fume is complex in composition and contains a large amount of harmful substances such as polycyclic aromatic hydrocarbons, aldehydes and ketones, etc. These substances discharged into the atmosphere not only cause local air odor pollution, but also participate in photochemical reaction to generate secondary pollutants, which has a very adverse effect on air quality, and further threatens human health and ecological environment. From the installation point of view, many factors need to be considered during installation, such as the layout of the pipeline, the adaptability to the building structure, how to avoid damaging the appearance of the building, etc. In addition, the length, bending degree and material selection of the pipeline will affect the smoke exhaust effect. Unreasonable layout may cause oil fume accumulation in the pipeline, increase the smoke exhaust resistance, reduce the smoke exhaust efficiency, and even cause fire hazards, etc. SUMMARY
[0004] Therefore, the utility model discloses the purpose is to provide kitchen no pipeline net circulation no oil smoke purification integrated machine to solve the technical scheme that the existing range hood relies on external oil fume pipeline, the technical problem that there is a significant defect in environmental impact and installation convenience.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: the kitchen no pipeline net circulation no oil smoke purification integrated machine, including oil smoke integrated machine, the oil smoke integrated machine is composed of lower box body, middle box body and upper box body;
[0006] The lower shell of the lower box body is provided with a plurality of dynamic interceptors and a nano oil fume filter screen from bottom to top, the top of the nano oil fume filter screen is provided with a plurality of spray main pipes communicated with each other, and the inner side of the spray main pipe is communicated with a plurality of spray branch pipes, the spray branch pipe sprays cleaning agent to the top of the nano oil fume filter screen, and the top of the lower shell is provided with metal sintered felt on both sides;
[0007] The suction fan is installed at the middle position of the inner middle part of the middle shell of the middle cabinet, and high-efficiency filter screens, super-high-efficiency filter plates and modified activated carbon screens are symmetrically arranged at the two sides of the inner middle part of the middle shell; the central flow channel communicated with the air outlet of the suction fan is arranged at the inner middle part of the upper shell of the upper cabinet, and the sound-absorbing plates are fixed at the two sides of the central flow channel in the inner middle part of the upper shell, and a plurality of sound-absorbing tubes are uniformly arranged in the sound-absorbing plates, and the smoke passes through the plurality of sound-absorbing tubes to play a role of sound-absorbing and noise-reducing;
[0008] The lower shell is provided with a smoke inlet at one end, the inner middle part of the middle shell is provided with a side flow cavity at the two sides, and the upper shell is provided with a top flow cavity above the sound-absorbing plate in the inner middle part, and the two sides of the upper shell are provided with exhaust channels communicated with the outside; after the smoke enters the inner part of the lower shell through the smoke inlet, it passes through the nano oil fume filter screen, and the smoke particles passing through the plurality of dynamic interceptors pass through the two groups of metal sintered felt into the side flow cavity; under the action of the negative pressure suction force of the suction fan, the smoke particles pass through the high-efficiency filter screen, the super-high-efficiency filter plate and the modified activated carbon screen in turn, and then pass through the central flow channel into the top flow cavity; at this time, the smoke passes through the plurality of sound-absorbing tubes again to play a role of sound-absorbing, and then is discharged to the outside through the exhaust channels;
[0009] The lower shell is provided with a water tank at the bottom of one end, and a circulating water pump is installed at one side of the inner part of the water tank, and the output end of the circulating water pump is communicated with the spraying main pipe, and the input end is communicated with the inner part of the water tank;
[0010] The lower shell is provided with two groups of water pipes at the bottom of one side, wherein the two groups of water pipes are water inlet pipes and drainage pipes respectively; a water level monitoring module is installed on one side of the inner wall of the water tank, and the water level monitoring module plays a role of monitoring the water level in the water tank and automatically stopping water injection;
[0011] The inner part of the middle shell is provided with a negative ion generator and a ultraviolet lamp plate at one side of the side flow cavity and the top respectively, and the negative ion generator and the ultraviolet lamp plate are electrically connected with the control module through wires.
[0012] By adopting the above technical scheme, through the purification effect, the multi-layer filtering system works cooperatively, the nano oil fume filter screen, the dynamic interceptor, the metal sintered felt, the high efficiency filter screen, the ultra-high efficiency filter plate and the modified activated carbon screen layer by layer progress, harmful substances in the oil fume can be efficiently removed, the purified oil fume reaches the direct emission standard, the pollution to the indoor and outdoor environment is greatly reduced, the kitchen air quality and human health are protected, in the cleaning aspect, the circulating water pump cooperates with the spraying system, the impurity particles in the flue gas are effectively purified and decomposed by utilizing the cleaning liquid circulating spraying and the bubble decomposition principle, the automatic and efficient, the tediousness and difficulty of manual cleaning are reduced, in the installation convenience, the dependence on the external oil fume pipeline is got rid of, the installation process is simplified, the installation difficulty is reduced, the complicated pipeline layout is not needed, the influence on the building structure and appearance is reduced, the device can be flexibly installed in various kitchen environments, in addition, the noise reduction design reduces the equipment operation noise, the negative ion generator and the ultraviolet lamp plate further purify and sterilize and disinfect, the user's use experience is comprehensively improved.
[0013] Further, the lower shell is internally fixed with a mounting frame.
[0014] By adopting the above technical scheme, the mounting frame plays a role in fixedly mounting the plurality of dynamic interceptors.
[0015] Further, the lower shell is internally fixed with a mounting frame.
[0016] By adopting the above technical scheme, the mounting frame plays a role in fixedly mounting the plurality of dynamic interceptors.
[0017] In summary, the utility model mainly has the following beneficial effects: the utility model through the purification effect, the multi-layer filtering system works cooperatively, the nano oil fume filter screen, the dynamic interceptor, the metal sintered felt, the high efficiency filter screen, the ultra-high efficiency filter plate and the modified activated carbon screen layer by layer progress, harmful substances in the oil fume can be efficiently removed, the purified oil fume reaches the direct emission standard, the pollution to the indoor and outdoor environment is greatly reduced, the kitchen air quality and human health are protected, in the cleaning aspect, the circulating water pump cooperates with the spraying system, the impurity particles in the flue gas are effectively purified and decomposed by utilizing the cleaning liquid circulating spraying and the bubble decomposition principle, the automatic and efficient, the tediousness and difficulty of manual cleaning are reduced, in the installation convenience, the dependence on the external oil fume pipeline is got rid of, the installation process is simplified, the installation difficulty is reduced, the complicated pipeline layout is not needed, the influence on the building structure and appearance is reduced, the device can be flexibly installed in various kitchen environments, in addition, the noise reduction design reduces the equipment operation noise, the negative ion generator and the ultraviolet lamp plate further purify and sterilize and disinfect, the user's use experience is comprehensively improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a first perspective view of the overall structure of the utility model;
[0019] Figure 2 is a schematic diagram of the flow of flue gas in a vertical section of the utility model;
[0020] Figure 3 is a side view of the utility model;
[0021] Figure 4 is a cutaway view of the internal structure of the utility model;
[0022] Figure 5 is a schematic diagram of part of the structure of the utility model;
[0023] Figure 6 is a second perspective view of the overall structure of the utility model.
[0024] In the figure: 1, lower cabinet; 101, lower shell; 102, smoke inlet; 103, nanometer oil fume filter screen; 104, mounting frame; 105, dynamic interceptor; 106, fixed plate; 107, mounting hole; 108, metal sintered felt; 109, water tank; 110, circulating water pump; 111, spray main pipe; 112, spray branch pipe; 113, water pipe; 114, water level monitoring module; 2, middle cabinet; 201, middle shell; 202, suction fan; 203, side flow cavity; 204, high-efficiency filter screen; 205, ultra-high-efficiency filter plate; 206, modified activated carbon screen; 207, negative ion generator; 208, ultraviolet lamp plate; 3, upper cabinet; 301, upper shell; 302, central flow channel; 303, top flow cavity; 304, sound-absorbing plate; 305, sound-absorbing cylinder; 306, exhaust passage. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings of the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are used only to explain the utility model, and cannot be understood as limiting the utility model.
[0026] The embodiments of the utility model will be described below according to the overall structure of the utility model. Embodiment One
[0027] As shown in the drawings, Figures 1-6 this embodiment is developed around a kitchen pipe-free net circulation oil fume-free purification all-in-one machine, the structural design is developed around efficient purification, convenient cleaning and low-noise emission, and mainly comprises a lower cabinet 1, a middle cabinet 2, an upper cabinet 3 and other components;
[0028] The lower shell 101 of the lower cabinet 1 is made of stainless steel, which is firm, durable and easy to clean. The lower shell 101 is provided with a smoke inlet 102 at one end for inhaling kitchen fume. A nano fume filter screen 103 and a plurality of dynamic interceptors 105 are arranged in the lower shell 101 from bottom to top. The nano fume filter screen 103 is made of stainless steel and has a nano metal coating on the surface, which is smooth and oil-free. It can effectively intercept 93% of fume particles. The top of the nano fume filter screen 103 is provided with spray main pipes 111 connected to each other. The inside of the spray main pipes 111 is connected to a plurality of spray branch pipes 112 for spraying cleaning agent. A frame 104 is fixedly installed in the lower shell 101 for fixing the plurality of dynamic interceptors 105. The rotating blades of the dynamic interceptors 105 can capture fume particles and use centrifugal force to collect them on the inner wall of the shell, and finally drop to the top of the nano fume filter screen 103.
[0029] Metal sintered felt 108 is arranged on both sides of the top of the lower shell 101. The metal sintered felt 108 is made of hastelloy metal and has a three-dimensional network, porous structure, high porosity, large surface area, uniform pore size distribution and other characteristics. It can further filter the fume after preliminary purification. A fixed plate 106 is fixed on the top of the lower shell 101. Installation holes 107 are formed on both sides of the fixed plate 106 for installing the metal sintered felt 108.
[0030] A water tank 109 is formed at one end of the bottom of the lower shell 101. A circulating water pump 110 is installed on one side of the inside of the water tank 109. The output end of the circulating water pump 110 is connected to the spray main pipes 111, and the input end is connected to the inside of the water tank 109 to realize the circulation of the cleaning agent. Two water pipes 113 are arranged on one side of the bottom of the lower shell 101, which are water inlet pipe and drain pipe respectively for supplementing water source, cleaning agent and discharging sewage. A water level monitoring module 114 is installed on one side of the inner wall of the water tank 109 for monitoring the water level in the water tank 109. When the water level reaches the set value, the water injection is automatically stopped.
[0031] The middle shell 201 of the middle cabinet 2 is made of cold-rolled steel plate and the surface is treated for rust prevention. A suction fan 202 is installed at the middle position in the middle shell 201 to provide power for the suction and discharge of fume. High-efficiency filter screens 204, super-high-efficiency filter plates 205 and modified activated carbon screens 206 are symmetrically arranged on both sides of the inside of the middle shell 201 for further high-efficiency filtration and adsorption of the fume after preliminary purification to remove harmful substances therein. Side flow cavities 203 are formed on both sides of the inside of the middle shell 201 for guiding the flow of fume. A negative ion generator 207 and an ultraviolet lamp plate 208 are installed on one side of the side flow cavities 203 and the top of the middle shell 201 respectively. The negative ion generator 207 and the ultraviolet lamp plate 208 are electrically connected to the control module through wires to generate negative ions and ultraviolet rays for further purifying air and sterilizing and disinfecting.
[0032] The upper shell 301 of the upper cabinet 3 is made of aluminum alloy material, which is light in weight and corrosion resistant. A central flow channel 302 is arranged in the middle of the inner part of the upper shell 301 and is connected to the air outlet of the suction fan 202, for guiding the flow of purified oil fume. Two sound-absorbing plates 304 are fixed on both sides of the central flow channel 302 in the inner part of the upper shell 301. A plurality of sound-absorbing cylinders 305 are uniformly arranged in the sound-absorbing plates 304. When the flue gas passes through the plurality of sound-absorbing cylinders 305, the sound-absorbing material and special structure design play a role in sound absorption and noise reduction. A top flow cavity 303 is arranged above the sound-absorbing plates 304 in the inner part of the upper shell 301, for collecting the purified oil fume. Exhaust channels 306 are arranged on both sides of the upper shell 301 and are connected to the outside, for discharging the purified oil fume to the outside;
[0033] Device installation and preparation
[0034] Select a suitable installation position in the kitchen, ensure that the installation position is stable and well ventilated, install the oil fume-free all-in-one machine on the kitchen wall or cabinet through the installation assembly, align the smoke inlet 102 above the stove, connect the water inlet pipe with the external water faucet, ensure that the connection is tight and there is no water leakage phenomenon, connect the drain pipe to the kitchen drain pipe to ensure smooth drainage, connect the power supply, check whether all parts of the device are normally connected, especially the electrical circuit and water connection, start the device, check whether the suction fan 202 is running normally, and observe whether there is abnormal noise and vibration;
[0035] Device operation and purification process
[0036] Turn on the stove for cooking. After the oil fume is generated, the suction fan 202 is powered on and runs, generating negative pressure suction force from both sides. The external oil fume enters the inner part of the lower shell 101 through the smoke inlet 102. The oil fume passes through the nano oil fume filter screen 103 under the action of negative pressure suction force. The nano oil fume filter screen 103 intercepts most of the oil fume particles, changes the advancing route of the oil fume, and makes it collide and adsorb on the surface of the filter screen.
[0037] The oil fume continues to advance to the dynamic interceptor 105. The rotating blades of the dynamic interceptor 105 capture the oil fume particles. Under the action of centrifugal force, the oil fume particles collect on the inner wall of the housing and drop to the top of the nano oil fume filter screen 103.
[0038] The circulating water pump 110 is started, and the cleaning agent in the water tank 109 is uniformly sprayed to the top of the nano oil fume filter screen 103 through the spray main pipe 111 and the spray branch pipe 112. Due to the negative pressure suction force generated by the suction fan 202, bubbles are generated on the top of the nano oil fume filter screen 103. The generation and collision of the bubbles drive the decomposition and purification of the oil fume particles. The oil fume that has undergone preliminary purification passes through the two groups of metal sintered felt 108 into the inner part of the side flow cavity 203. The metal sintered felt 108 further filters the oil fume.
[0039] In the side flow cavity 203, the oil fume gradually moves to the middle position, and sequentially passes through the high-efficiency filter screen 204, the super high-efficiency filter plate 205 and the modified activated carbon screen 206, and these filter materials perform high-efficiency filtration and adsorption on the oil fume to remove harmful substances therein.
[0040] The purified oil fume flows to the center flow channel 302 through the top of the suction fan 202, and then sequentially passes through the multiple groups of sound attenuation cylinders 305 through the top flow cavity 303, the sound attenuation cylinders 305 perform sound attenuation treatment on the oil fume, and finally the oil fume is directly discharged to the outside through the exhaust channels 306 on both sides of the upper shell 301.
[0041] Equipment maintenance and cleaning
[0042] Periodically check the filtration effects of the nano oil fume filter screen 103, the high-efficiency filter screen 204, the super high-efficiency filter plate 205 and the modified activated carbon screen 206, and if the filter screen is found to be blocked or the filtration effect is found to be decreased, clean or replace the filter screen in time, when cleaning the nano oil fume filter screen 103, close the circulating water pump 110, take out the nano oil fume filter screen 103, and clean the nano oil fume filter screen 103 by flushing with clean water or soaking with a special cleaning agent, periodically clean the water tank 109 to remove accumulated oil stains and impurities in the water tank 109, and ensure that the circulating water pump 110 works normally, check whether the impeller of the suction fan 202 is accumulated with oil stains every certain period of time, and clean the suction fan 202 if necessary, so as to ensure that the suction force of the fan is stable.
[0043] The working principle of the utility model is as follows: when in use, the power is turned on, the equipment is installed in the kitchen area through the mounting assembly, the two groups of water pipes 113 are respectively water inlet pipes and drain pipes, the water inlet pipes are connected with external water taps in a communication mode, and then when the water taps are opened, the water tank 109 can be supplemented with water and oil fume special cleaning liquid, and then under the action of the circulating water pump 110, the cleaning liquid can be uniformly sprayed to the top of the nano oil fume filter screen 103 through the spraying main pipe 111 and the spraying branch pipe 112, and the cleaning liquid that passes through the nano oil fume filter screen 103 returns to the inside of the water tank 109 under the blockage of the lower shell 101, and under the circulation action of the circulating water pump 110, the cleaning liquid can be circulated for a certain period of time.
[0044] When the equipment starts to work, the suction fan 202 is powered on to generate negative pressure suction force from both sides, the external oil fume enters the inside of the lower shell 101 through the oil inlet 102, and then the oil fume passes through the nano oil fume filter screen 103 to the position of the multiple groups of dynamic interceptors 105 under the action of the negative pressure suction force.
[0045] Further, the nano oil fume filter screen 103 is made of stainless steel, which changes the route of the oil fume particles when passing through, so that the oil fume particles collide continuously, and finally are adsorbed on the surface of the nano oil fume filter screen 103, and the surface is coated with a nano metal coating which is smooth and oil-free, which can intercept 93% of the oil fume particles;
[0046] Then, under the rotating action of the rotating blades of the multiple sets of dynamic interceptors 105, the rotating blades can capture the oil fume particles, and under the action of the centrifugal force, the captured oil fume particles are collected on the inner wall of the shell of the dynamic interceptor 105, and then gradually drop to the top of the nano oil fume filter screen 103 under the action of the gravity of the oil fume particles themselves;
[0047] At this time, under the action of the circulating water pump 110, the oil fume special cleaning liquid is sprayed to the top of the nano oil fume filter screen 103 through the multiple sets of spraying branch pipes 112, and at this time, the cleaning liquid flows to the top of the nano oil fume filter screen 103 under the action of the gravity, and at this time, the cleaning liquid is difficult to directly pass through the nano oil fume filter screen 103 under the action of the negative pressure suction of the suction fan 202, and at this time, the cleaning liquid generates bubbles on the surface of the top of the nano oil fume filter screen 103, so that the generation of bubbles and the mutual collision between them better drive the oil fume particles to be decomposed and purified;
[0048] At this time, the oil fume which has been preliminarily purified passes through the two sets of metal sintered felt 108 into the side flow cavity 203, wherein the metal sintered felt 108 is made of hastelloy, which is made of very fine hastelloy fibers by non-woven laying, stacking and high-temperature sintering, has the characteristics of three-dimensional network, porous structure, high porosity, large surface area, uniform pore size distribution, etc., and can continuously maintain the filtering effect of the filtering surface;
[0049] After the smoke gas is purified by the metal sintered felt 108, it gradually moves from the side flow cavity 203 to the middle position, at this time, the moving smoke gas passes through the high-efficiency filter screen 204, the super-high-efficiency filter plate 205 and the modified activated carbon screen 206 in turn, and is further filtered and adsorbed, and then flows to the center flow channel 302 through the top of the suction fan 202;
[0050] At this time, the smoke gas is purified by the multiple layers of filter modules to reach the direct emission standard, and then the purified smoke gas passes through the multiple sets of sound attenuation cylinders 305 in turn through the top flow cavity 303, and under the action of the sound attenuation cylinders 305, the sound attenuation effect of the gas is achieved, and then is directly discharged to the outside through the exhaust passages 306 on both sides of the upper shell 301;
[0051] From the above, through the multi-layer filtering in the equipment, and the cleaning liquid pumped out by the circulating water pump and the negative pressure effect of the suction fan 202, the cleaning liquid forms bubbles on the nano oil fume filter screen 103, better purifying the oil fume particles, and cooperating with the effect of the dynamic interceptor 105, greatly purifying the harmful substances in the oil fume particles, and then further filtering and adsorbing through the high-efficiency filter screen 204, the super-high-efficiency filter plate 205 and the modified activated carbon screen 206, the oil fume can reach the direct emission standard, thereby avoiding the problem of the existing need for external pipeline, and avoiding the problem of the existing oil fume equipment that the purification and adsorption effect of oil fume particles is poor, and simplifying the overall installation process, making the overall process installation more convenient.
[0052] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the person skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.
Claims
1. A kitchen pipeline-free net circulation oil fume-free purification integrated machine, comprising an oil fume integrated machine, characterized in that: The oil fume all-in-one machine is composed of a lower box body (1), a middle box body (2) and an upper box body (3); A plurality of groups of dynamic interceptors (105) are arranged in the lower shell (101) from bottom to top. The lower shell (101) is provided with an inlet (102) at one end, the middle shell (201) is provided with side flow cavities (203) at both sides, the upper shell (301) is provided with a top flow cavity (303) above the sound-absorbing plate (304), and the upper shell (301) is provided with exhaust channels (306) at both sides.
2. The kitchen machine of claim 1, wherein: The lower shell (101) is fixedly provided with a mounting frame (104), and the mounting frame (104) serves to fixedly mount the plurality of groups of dynamic interceptors (105).
3. The kitchen machine of claim 1, wherein: The lower shell (101) is fixedly provided with a mounting frame (104), and the mounting frame (104) serves to fixedly mount the plurality of groups of dynamic interceptors (105).
4. The kitchen machine of claim 1, wherein: The lower shell (101) is provided with a water tank (109) at the bottom of one end, and a circulating water pump (110) is mounted on one side in the water tank (109). The output end of the circulating water pump (110) is connected with the spray main pipe (111), and the input end is connected with the water tank (109).
5. The kitchen machine of claim 1, wherein: 6. The kitchen machine of claim 5, wherein: The lower shell (101) is provided with two groups of water pipes (113) on one side of the bottom, wherein the two groups of water pipes (113) are water inlet pipes and water outlet pipes respectively, a water level monitoring module (114) is mounted on one side of the inner wall of the water tank (109), and the water level monitoring module (114) plays a role of monitoring the water level in the water tank (109) and automatically stopping water injection.
7. The kitchen machine of claim 1, wherein: The middle shell (201) is internally provided with a negative ion generator (207) and an ultraviolet lamp plate (208) which are respectively mounted on one side of the side flow cavity (203) and the top, and the negative ion generator (207) and the ultraviolet lamp plate (208) are electrically connected with the control module through wires.