CN107435960B - Kitchen air purification system - Google Patents

Abstract

The utility model provides a kitchen air purification system, includes range hood, is located range hood front side, installs the air curtain mechanism in neighbouring kitchen ceiling position, its characterized in that: the air curtain mechanism is provided with an air outlet which discharges air towards the lower edge of the range hood, the speed of air flow blown out by the air outlet of the air curtain mechanism is gradually reduced along with the approaching of the air flow to the lower edge of the range hood, and the speed of the air flow blown out by the air outlet of the air curtain mechanism is reduced to 0 within the range of 750mm respectively in the vertical direction of the horizontal plane where the lower edge of the range hood is located. This kitchen air purification system, including carrying out the adsorbed lampblack absorber and being located the air curtain mechanism that forms the air curtain in lampblack absorber front side to the oil smoke, not only can prevent that the oil smoke from escaping, improve range hood's oil absorption cigarette efficiency, can purify the kitchen air better moreover.

Description

Kitchen air purification system

Technical Field

The invention relates to an air purification system.

Background

In recent years, people pay more and more attention to the quality of ambient air. The quality of the air with high quality needs to achieve the following indexes: the air purifier has the advantages of proper temperature, proper humidity, proper oxygen content, capability of controlling the content of particulate matters in the air, capability of controlling the content of bacteria in the air and capability of eliminating peculiar smell in the air. Particularly, as a kitchen with the most serious air pollution in a family, because the kitchen can generate oil smoke in cooking, although the existing range hood can solve part of oil smoke problems, the effect of improving the air quality of a house is far from enough.

The range hood is widely used by most families as a kitchen appliance. The existing range hoods have various types and different structures. In general, a range hood of any type includes a housing, an air inlet is disposed below the housing, an air outlet is disposed above the housing, a fan volute is disposed in the housing, and a motor for driving an impeller to rotate is disposed in the volute. The lower part of casing is equipped with a collection petticoat pipe usually, is equipped with the air intake promptly on the collection petticoat pipe, in order to prevent as far as possible that the oil smoke from getting into the inside fan spiral case and the impeller that pollutes the organism of range hood, also prevents simultaneously that the oil smoke from letting into the atmosphere and influencing the environment as far as possible, and current range hood all can be equipped with oil smoke filter equipment in air intake department, and oil smoke filter equipment's below is equipped with oil cup or oil groove and is used for collecting the oil smoke that this filter equipment filtered out.

Because a kitchen usually produces large oil smoke in the cooking process, an oil smoke filtering device of the range hood is not easy to adopt an over-fine mesh, and is not suitable to adopt a structure of filtering layers such as active carbon, and otherwise, the filtered oil stain is easy to block the mesh and the gap to cause the sudden reduction of the air volume of the range hood, so that the oil smoke absorption function of the range hood is greatly reduced. In order to improve the efficiency of absorbing oil smoke and prevent oil smoke from escaping, some range hoods are provided with an air curtain structure to prevent oil smoke from escaping, such as a range hood disclosed in chinese patent CN202125973U, which includes a range hood body, a plurality of flow dividers and an air curtain generator, each flow divider is a hollow shell, and an air outlet is formed at the bottom end of each flow divider, each flow divider is respectively disposed on the inner side wall surface of the housing of the range hood body and is disposed downward from the air outlet, the air curtain generator is communicated with each flow divider by an air flow pipeline, and can generate air flow and guide the air flow to each flow divider by the air flow pipeline to be blown out from the air outlet, so as to form an air curtain capable of isolating oil smoke from escaping, each air curtain and the wall surface form a shielding space capable of isolating oil smoke generated during cooking, so as to effectively prevent the oil smoke from diffusing laterally, so that the oil smoke can smoothly pass through an air inlet fan and be exhausted from the air outlet, thereby achieving the purpose of providing a clean kitchen and preventing the oil smoke from being inhaled by a user. However, the range hood with the air curtain is large in size, the air curtain structure cannot be flexibly arranged, and the effect of preventing oil smoke from escaping is very limited.

Disclosure of Invention

The invention aims to provide a kitchen air purification system capable of better purifying kitchen air.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a kitchen air purification system, includes range hood, is located range hood front side, installs the air curtain mechanism in neighbouring kitchen ceiling position, its characterized in that: the air curtain mechanism is provided with an air outlet which discharges air towards the lower edge of the range hood, the speed of air flow blown out by the air outlet of the air curtain mechanism is gradually reduced along with the approaching of the air flow to the lower edge of the range hood, and the speed of the air flow blown out by the air outlet of the air curtain mechanism is reduced to 0 within the range of 750mm respectively in the vertical direction of the horizontal plane where the lower edge of the range hood is located.

Preferably, the speed of the airflow blown out from the air outlet of the air curtain mechanism is reduced to 0 within the range of 300mm respectively in the upper and lower directions of the horizontal plane of the lower edge of the range hood.

Preferably, the angle between the wind blown out from the edge of the air outlet close to one side of the range hood and the vertical direction is alpha, and the angle between the wind blown out from the edge of the air outlet far from the range hood and the vertical direction is beta, wherein alpha is-75 degrees to 75 degrees, and beta is-75 degrees to 75 degrees.

Preferably, alpha is-45 to 45 degrees and beta is-45 to 45 degrees.

Preferably, the air blown out from the edges at the two ends of the air outlet forms an angle gamma with the vertical direction, wherein the angle gamma is-80 to 80 degrees.

Preferably, the air outlet of the air curtain mechanism is a strip-shaped outlet which is positioned near the top of the range hood and extends transversely; or the air outlet is an annular outlet positioned at the top part near the range hood; or the air outlet is an arc-shaped outlet positioned at the top part near the range hood, and the center of the arc is positioned at one side of the range hood; or the air outlet can also be in a wave shape positioned at the top part near the range hood; or the air outlet is arranged at a plurality of intervals.

In order to better purify the air, the air purifying device is arranged on the front side of the air curtain mechanism and comprises at least one air inlet communicated with the indoor space and at least one air outlet communicated with the indoor space.

In order to better and directly purify the oil smoke sucked by the range hood, the air purification device also comprises at least one air inlet communicated with the range hood.

Preferably, the air purification device comprises a housing and an air purification unit located in the housing, the housing is provided with the air inlet and the air outlet, the air inlet is communicated to an air inlet of the air purification unit, the air outlet of the air purification unit is perpendicular to the air inlet of the air purification unit, and a fan is arranged on the inner side of the housing.

Preferably, other functional modules are arranged on an air duct between the air outlet of the air purification unit and the shell fan.

Preferably, the other functional modules comprise at least one of a sterilization module, a refrigeration and heating module, an odor removal module and a humidification module.

In order to better purify the oil smoke, the air purification unit comprises a coarse filtration unit and/or a fine filtration unit.

In order to make air purification device's structure compacter reasonable, be equipped with the opening respectively on the upper surface of casing and the lower surface and form the air inlet, the air intake of air purification unit expose in the air inlet, the air outlet of air purification unit is two and respectively towards two relative global of casing to be equipped with the gas outlet on this casing global, module, refrigeration heating module, the flavor module of removing and the humidification module of disinfecting are followed air purification unit's air outlet to gas outlet are followed the casing transversely sets gradually.

As another optional implementation manner of the air purification device, air inlets are formed in the peripheral surface and the upper surface of the housing, an air outlet is formed in the lower surface of the housing, the coarse filter unit is arranged in one circle inside the peripheral surface of the housing, the fine filter unit is arranged below the air inlet in the upper surface, other functional modules and a fan are arranged in the middle of the lower portion of the fine filter unit, the side surfaces of the other functional modules are separated from the coarse filter unit, and gas discharged by the coarse filter unit upwards enters the fine filter unit and then enters the other functional modules after passing through the fine filter unit.

Preferably, as an optional embodiment of the air purification device, the air inlets are located on the upper surface and the lower surface of the casing, the air outlets are located on the circumferential surface of the casing, a blower is arranged in the middle of the casing, the air outlet of the blower is connected to the air outlets on the circumferential surface of the casing, the air inlet of the blower is respectively arranged upwards and downwards and communicated to the air inlets on the upper surface and the lower surface of the casing, and an air purification unit is further arranged between the blower and the air inlets.

Compared with the prior art, the kitchen air purification system has the advantages that the kitchen air purification system comprises the range hood for adsorbing oil smoke and the air curtain mechanism which is positioned at the front side of the range hood and forms the air curtain, so that the oil smoke can be prevented from escaping, the oil smoke absorption efficiency of the range hood is improved, and the kitchen air can be better purified.

Drawings

Fig. 1 is a perspective view schematically illustrating a kitchen air purification system according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a kitchen air purification system according to another embodiment of the present invention.

Fig. 3 is a schematic view of a kitchen air purification system according to an embodiment of the present invention.

Fig. 4 is a plan view of a kitchen air purifying system according to a first embodiment of the present invention.

Fig. 5 is a schematic view of a kitchen air cleaning system according to a second embodiment of the present invention.

Fig. 6 is a schematic view of a kitchen air cleaning system according to a third embodiment of the present invention.

Fig. 7 is a schematic view of a kitchen air cleaning system according to a fourth embodiment of the present invention.

Fig. 8 is a schematic view of an air cleaning device of a kitchen air cleaning system according to an embodiment of the present invention.

Fig. 9 is a schematic view of an air cleaning device of a kitchen air cleaning system according to another aspect of the present invention.

Fig. 10 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 8.

Fig. 11 isbase:Sub>A plan sectional view taken along linebase:Sub>A-base:Sub>A in fig. 8.

Fig. 12 is an exploded view of an air cleaning device according to an embodiment of the present invention.

Fig. 13 is a sectional view taken along line B-B in fig. 8.

Fig. 14 is a schematic view of an air purification unit in the air purification apparatus according to the embodiment of the present invention.

Fig. 15 is a partially enlarged view of fig. 14.

FIG. 16 is a schematic view of a cyclone tube in an air cleaning apparatus according to an embodiment of the present invention.

FIG. 17 is a cross-sectional view of the cyclone tube of FIG. 16.

Fig. 18 is a cross-sectional view of the cyclone tube of fig. 16 in another direction.

Fig. 19 is a schematic view of another embodiment of the air cleaning apparatus of the present invention.

Fig. 20 is a top view of another embodiment of the air purification apparatus of the present invention.

Fig. 21 is a schematic view of another embodiment of the air cleaning device of the present invention.

Fig. 22 is a schematic view of the lifting structure of the air cleaning device of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1-3, the kitchen air purification system according to the embodiment of the present invention includes a range hood 10, an air curtain mechanism 70 located near a ceiling of the top of the range hood 10, and an air purification device 50 disposed at a front side of the air curtain mechanism 70, i.e., at a side of the air curtain mechanism 70 opposite to the range hood 10, i.e., the air curtain mechanism 70 is disposed between the air purification device 50 and the range hood 10.

This air curtain mechanism 70 is used for when range hood 10 uses, produces the round air curtain around range hood 10 for the oil smoke can be assembled in air curtain mechanism 70, makes range hood 10 can absorb the oil smoke better. However, since a person needs to operate the range hood before the range hood, even if the air curtain mechanism 70 is provided, the oil smoke may still leak from the air curtain mechanism 70, and the escaped oil smoke may be completely sucked by the air cleaning device 50. In addition, an air curtain mechanism 70 may be further provided outside the air purification device 50, so that an air curtain is also formed around the air purification device 50, thereby better removing oil smoke. In addition, the back of the range hood 10 is generally close to a wall, and therefore, the air curtain mechanism 70 may be independently disposed on the outer side of the range hood 10 to surround the range hood 10, may also be formed in a shape surrounding the range hood 10, or may be disposed around the top of the outer side of the range hood 10 at intervals. The air curtain mechanism 70 may be disposed only at a position facing a user on the front side of the range hood 10, or may surround the range hood 10.

As shown in fig. 3, the air outlet 71 of the air curtain mechanism 70 is inclined toward the range hood 10, and the air blown out from the air outlet 71 of the air curtain mechanism 70 has a certain angle range, that is, the air blown out from the edge of the air outlet 71 close to one side of the range hood forms an angle α with the vertical direction, the air blown out from the edge of the air outlet 71 far away from the range hood forms an angle β with the vertical direction, where α is-75 degrees to 75 degrees, wherein one side toward the range hood is a positive angle, one side far away from the range hood is a negative angle, and β is-75 degrees to 75 degrees. And the wind blown out by the wind curtain mechanism 70 has a certain wind speed, which gradually decreases as approaching the lower edge of the range hood 10, and the wind speed becomes 0 within a range of 750mm respectively in the up-down direction of the horizontal plane where the lower edge of the range hood 10 is located, preferably, the range is 300mm respectively in the up-down direction. And the distance d between the air outlet 71 of the air curtain mechanism 70 and the lower edge of the range hood 10 is 300 mm-1000 mm. As shown in fig. 2 and 4, the air blown out from the edges at the two ends of the air outlet 71 forms an angle γ with the vertical direction, wherein γ is-80 to 80 degrees.

Therefore, the range hood can not only play a role in preventing oil smoke from escaping, but also enable the wind generated by the wind curtain not to influence the normal suction of the range hood, influence the flame generated by the cooker and further influence cooking.

Fig. 4, 5, 6 and 7 show several alternative embodiments of the air outlet 71 of the air curtain mechanism 70, as shown in fig. 4, the air outlet 71 is a strip-shaped outlet extending transversely at the front side of the range hood 10, as shown in fig. 5, the air outlet 71 is an annular outlet at the front side of the range hood 10, so as to surround an operator in an air curtain during cooking, and even if the operator disturbs the air curtain to control the oil smoke, the effect of preventing the oil smoke from escaping is better because of the front and rear air curtains of the range hood 10. As shown in fig. 6, the air outlet 71 is an arc-shaped outlet located at the front side of the range hood 10, and the center of the arc is located at one side of the range hood. As shown in fig. 7, the air outlet 71 may also be in a wave shape located at the front side of the range hood 10. And the air curtain mechanism 70 may further include an auxiliary air outlet disposed at the doorway of the kitchen for generating a certain air curtain at the top of the doorway of the kitchen, so that the escaping oil smoke will not spread from the kitchen to other rooms along the ceiling of the kitchen.

For example, the distance between the air curtain mechanism 70 and the lower edge of the range hood 10 is 700mm, the air blown out from the air outlet 71 of the air curtain mechanism is 2.2m/s, and the wind speed blown out from the air outlet 71 is gradually reduced to 0 when the distance from the air outlet 71 is 1000mm. Namely, the wind speed is reduced to 0 when the position of 300mm below the lower edge of the range hood 10 is reached.

Or, the distance between the air curtain mechanism 70 and the lower edge of the range hood 10 is 700mm, the air blown out from the air outlet 71 of the air curtain mechanism is 1.5m/s, and the air speed blown out from the air outlet 71 is gradually reduced to 0 when the distance from the air outlet 71 is 400 mm. Namely, the wind speed is reduced to 0 when the position of 300mm above the lower edge of the range hood 10 is reached.

Or, the distance between the air curtain mechanism 70 and the lower edge of the range hood 10 may be 700mm, the air blown out from the air outlet 71 of the air curtain mechanism is 1.8m/s, and the air speed blown out from the air outlet 71 gradually decreases, and when the distance from the air outlet 71 is 700mm, the air speed decreases to 0, that is, when the distance from the air outlet 71 to the lower edge of the range hood 10, the air speed decreases to 0.

The air outlet 71 near the top of the range hood can be a plurality of air outlets which independently surround the range hood at intervals, can also be a single air outlet which surrounds the range hood, can also surround the part of the range hood or is only positioned on one side of the range hood facing a user, and the size of the air outlet 71 can also be adjusted, so that the size of the air speed can be adjusted by adjusting the size. Moreover, the air outlet 71 may also be provided with a panel that can be opened and closed for controlling the opening and closing of the air outlet, or an air deflector that can swing left and right or back and forth for adjusting the direction of the outlet air, such as an air conditioner outlet.

The air purification device 50 comprises at least one air inlet 11 communicated to the indoor and at least one air outlet 12 communicated with the indoor, and the air purification device 50 also comprises an air inlet 11 connected with an air outlet of the range hood. The air cleaning apparatus 50 includes a housing 1, and an air cleaning unit 2 provided in the housing 1. The housing 1 is flat and square as shown in fig. 8 and 9, and the housing 1 is provided with an air inlet 11 and an air outlet 12.

As shown in fig. 8 and 9, the air inlet 11 of the housing 1 is located on the upper surface and the lower surface of the housing 1, and the air outlet 12 is located on the circumferential surface of the housing 1. The air inlet of the air purification unit 2 faces the air inlet 11, and the air outlet of the air purification unit 2 may or may not face the air outlet 12 on the housing 1.

As shown in fig. 8 and 9, the housing 1 has two air inlets 11 on the upper surface and the lower surface, and two air outlets 12 are respectively disposed on two opposite peripheral surfaces of the housing 1. And the air outlet of the air cleaning unit 2 is arranged towards the air outlet 12 and the air inlet of the air cleaning unit 2 is arranged towards the air inlet 11. Therefore, two air purification units 2 are provided in the air purification apparatus. In particular, the upper surface and the lower surface of the housing 1 are respectively provided with openings to form the air inlet 11, the air inlet 11 exposes the air inlet of the air purification unit 2, and the air inlet of the air purification unit 2 is located at the position of the air inlet 11. The inner side of the air outlet 12 of the casing 1 is provided with a fan 5, so that the air flow in the casing 1 is guided to the air outlet 12 and discharged, and the air flow is guided to the air outlet 12 and discharged. Namely, the air purification unit 2 and the fan 5 are sequentially arranged in an air flow channel between the air inlet 11 and the air outlet 12 of the shell 1, and other functional units can be arranged between the air purification unit 2 and the fan 5. The fan 5 is a vortex fan.

As shown in fig. 8, 9 and 10, the air inlets of the two air purification units 2 are respectively arranged downward and upward, and the air outlets thereof are two and are respectively arranged toward the air outlets on two opposite peripheral walls of the housing 1. External lampblack gas enters the air purification unit 2 from an air inlet 11 of the housing 1, namely an air inlet of the air purification unit 2, and is discharged from an air outlet of the air purification unit 2 after lampblack separation is performed through the air purification unit 2, and an air outlet of the air purification unit 2 is perpendicular to the air inlet of the air purification unit, and then is discharged to the outside of the housing 1 from an air outlet 12 of the housing 1. A sterilization module 3 and a refrigeration and heating module 4 can be sequentially arranged on an air channel between an air outlet of the air purification unit 2 and the fan 5 of the air outlet 12 of the shell 1. Other functional modules such as a smell removal module and a dehumidification module can be arranged. Therefore, the soot gas passing through the air purifier can be purified and filtered into a clean gas, and further directly discharged from the outlet 12 of the casing 1. The air purification device can be installed on a suspended ceiling of a kitchen, is similar to the position and the structure of an air conditioner or a bathroom ventilator, is small in size and attractive in appearance, can discharge gas indoors instead of outdoors, and is more environment-friendly and free of environmental pollution.

As shown in fig. 13 to 18, for the structure of the two sets of air purification units 2, each set of air purification units 2 includes at least two cyclone tubes 21 extending in the same direction side by side, the cyclone tubes 21 are hollow and cylindrical, and the two ends of the cyclone tubes 21 are provided with openings to form air outlets 213, and the middle part of the side wall 211 of the cyclone tube 21 is provided with an opening extending along the axial direction of the cyclone tube 21 to form an air inlet 212. The periphery of the air inlet 212 is formed with a circle of wind scoops 214 extending outward, and the wind scoops 214 include two opposite first guide surfaces 2141 and second guide surfaces 2142 extending in the axial direction of the cyclone tube 1, wherein the first guide surfaces 2141 extend perpendicularly to the side wall 211 of the cyclone tube 21 from the outer side of the air inlet 212, and the second guide surfaces extend away from the first guide surfaces 2141 from the outer side of the air inlet 212. Therefore, under the action of the fan, the oil smoke entering the cyclone tube 21 from the air inlet 212 can rotate and accelerate in the cyclone tube 21, and then the oil smoke gas collides with the sidewall of the cyclone tube 21, because there is friction between oil droplets and the sidewall of the cyclone tube 21, the oil droplet molecules will remain in the sidewall of the cyclone tube 21, and the gas separated from the oil droplet molecules gradually moves towards both ends, and is discharged from the air outlet 213.

In order to further separate oil droplets from gas, a wire 22 is provided inside the cyclone tube 21 extending along the axial direction thereof, preferably, the wire 22 extends along the center of the cyclone tube 21, and the air cleaning unit further includes a high voltage electrostatic generator (not shown), one of the positive and negative poles of which is connected to the sidewall 211 of the cyclone tube 21, and the other of the positive and negative poles of which is connected to the wire 22. When the high voltage electrostatic generator is operated, a cylindrical electric field is formed inside the cyclone tube 21, free electrons in the air move to two poles under the action of the cylindrical electric field, and after the voltage of the electric field rises to a certain value, most oil smoke molecules are combined with negative electrons to form negative ions when the air containing the oil smoke molecules spirally passes through the cyclone tube 21, and the negative ions are deposited on one pole of the side wall 211 of the cyclone tube 21 under the action of the electric field. The separation rate of oil smoke gas is improved more, and the gas passing through the air purification unit is cleaned better.

Therefore, the structure of the cyclone tube can enable the gas to rotate, has the capability of filtering large particles, effectively increases the probability of capturing and decomposing substances, and makes up the function that static plasma cannot complete; and the charged conducting wire is added in the middle of the cyclone tube, so that the defect that the cyclone tube structure is insufficient in capturing small particles is overcome, oil drop molecules can be removed, other space and volume are not occupied, a structure is not required to be additionally arranged, and an electric field can be realized by utilizing the structure of the cyclone tube. Compared with the existing filter screen filtering structure, the cyclone tube has large inner diameter and is not easy to block, the cleaning period is greatly prolonged, the permanent use is not required, and the use cost is greatly reduced.

As shown in fig. 13 and 14, two groups of air purification units are disposed up and down in the air purification apparatus, and each group of air purification units includes a plurality of cyclone tubes 21 disposed side by side, the extension directions of the cyclone tubes 21 in the two groups of air purification units are the same, the air inlets 212 of each cyclone tube 21 in each group of air purification units are oriented in the same direction, and the air inlets of the cyclone tubes 21 in the two groups of air purification units are oriented in opposite directions, that is, the air inlets 212 of the cyclone tubes 21 in the lower group of air purification units are disposed downward, the air inlets 212 of the cyclone tubes 21 in the upper group of air purification units are disposed upward, and the air inlets 212 of the cyclone tubes 21 in each group of air purification units 2 are respectively opposite to the air inlet 11 on the upper surface of the housing 1 and the air inlet 11 on the lower surface of the housing 1. The air outlets 213 of at least two cyclone tubes 21 in the air purification unit 2 are air outlets of the air purification unit 2, in this embodiment, the two air purification units 2 include air outlets on two sides.

The air purifying unit further comprises a fixing frame 23 for fixing at least two cyclone tubes, a support 231 with a flat plate shape of the fixing frame 23, and an opening 232 which is positioned on the support 231 and is matched with the shape of the wind scooper 214 of the cyclone tube 21, wherein the periphery of the opening 232 is provided with fixing edges 233 which extend towards the wind scooper 214 and are respectively positioned at the inner side of the wind scooper 214. The fixing frame 23 can guide and position the cyclone tube 21 to form a whole. The fixing frames 23 of the two air purification units may be integrally formed or may be separately formed and fixed to each other. The cyclone pipes in each group of air purification units can be integrally formed with the wind scooper, so that the structure is simple, the processing is convenient, the integrity of the oil fume filtering part is improved, and the oil fume is prevented from escaping. The holder 23 further includes a side plate 235 perpendicular to the plate-shaped holder 231, the side plate 235 being used to hold the end of the cyclone tube 21, and the wires 22 are connected to the high voltage electrostatic generator through the side plate 235. In the two sets of air purification units shown in fig. 6 and 7, the cyclone tubes 21 of each set of air purification units share the side plates 235 at two sides, i.e., the side plates 235 in each set of air purification units are connected or integrally formed. The outlet 12 of the housing 1 may be provided with a guide vane for adjusting the direction of the wind, so that the direction of the blown gas can be adjusted.

As shown in fig. 19 and 20, which are schematic views of a second embodiment of an air purification apparatus 50 according to the present invention, a housing 1 of the air purification apparatus in this embodiment is a flat circular shape, an air inlet 11 is provided on a peripheral surface of the housing 1, an air outlet 12 is provided on a lower surface of the housing 1, and an air inlet 11 is also provided on an upper surface of the housing 1, for connecting a range hood 10 in a kitchen.

An air purification unit 2, other functional modules and a fan 5 are sequentially arranged in an air flow channel from the air inlet 11 to the air outlet 12, the air purification unit 2 may be the structure of the air purification unit 2 as described in the above embodiments, or may include a coarse filtration unit 100 and a fine filtration unit 200, the coarse filtration unit 100 may be the structure of the air purification unit 2, or may be other oil smoke purification structures, and is used for filtering oil smoke with larger particles; the fine filtering unit 200 may be a filter screen structure as shown in fig. 11, or may be another oil smoke filtering unit for filtering oil smoke with small particles.

The coarse filtering unit 100 is arranged in one circle around the circumference of the housing 1, that is, one circle of cyclone tubes 21 is arranged in one circle around the housing 1, the air inlets 212 of the cyclone tubes 21 face the outer side of the circumference of the housing 1, the fine filtering unit 200 is positioned above the middle of the housing 1, another air inlet 11 is arranged above the fine filtering unit 200, other functional modules and a fan 5 are arranged in the middle of the lower part of the fine filtering unit 200, that is, in the middle of the coarse filtering unit 100, and the sterilizing module 3 and the refrigerating and heating module 4 are other functional modules. The side surfaces of the other functional modules are spaced from the coarse filter unit 100, that is, the airflow enters the housing 1 from the air inlet 11 on the peripheral surface of the housing 1, passes through the coarse filter unit 100, goes upward, enters the fine filter unit 200 and the other functional modules from above, then passes through the fine filter unit 200 and the other functional modules in sequence, and is discharged from the air outlet 12 in the middle of the lower part.

As shown in fig. 21, which is a schematic view of a third embodiment of the air purification apparatus 50 of the present invention, the housing 1 in this embodiment is cylindrical, and the air inlet 11 is located on the upper surface and the lower surface of the housing 1, and the air outlet 12 is located on the peripheral surface of the housing 1. The middle position of the shell 1 is provided with a fan 5, the air outlet of the fan 5 is connected to the air outlets 12 on the peripheral surface of the periphery of the shell 1, the air inlet of the fan 5 is respectively arranged upwards and downwards to be communicated to the air inlets 11 on the upper surface and the lower surface of the shell 1, and a coarse filtering unit 100, a fine filtering unit 200 and other functional modules are arranged between the fan 5 and the air inlets 11.

Namely, the air purification unit 2, other functional modules and the fan 5 are sequentially arranged on the air flow channel between the air inlet 11 and the air outlet 12, the air purification unit 2 includes a coarse filtration unit 100 and a fine filtration unit 200, or only the coarse filtration unit 100 or the fine filtration unit 200 may be provided, and the other functional modules may include at least one of the sterilization module 3, the refrigeration and heating module 4, the odor removal module and the humidification module. Other functional modules may not be provided.

Fig. 22 is a schematic diagram showing a lifting structure of an air purifying device 50 according to an embodiment of the present invention. The lifting structure comprises a driving motor 81 fixed on a ceiling 500 of a kitchen, a suspended ceiling 600 is arranged below the ceiling 500 at intervals, an opening is formed in the ceiling 500 and used for accommodating the air purification device 50, the driving motor 81 is connected with a connecting rod mechanism 82, the connecting rod mechanism 82 is fixedly connected to the air purification device 50, the driving motor 81 drives the connecting rod mechanism 82 to move up and down, so that the air purification device 50 moves up and down, when the air purification device 50 moves up, the lower surface of the air purification device is flush with the suspended ceiling 600, and when the air purification device 50 moves down, air inlets 11 on the periphery of the air purification device 50 are exposed out of the suspended ceiling 600. And a protection cable 83 is connected between the driving motor 81 and the air cleaning device 50.

This kitchen air purification system, including the range hood that adsorbs the oil smoke and be located the air curtain mechanism that range hood front side formed the air curtain, not only can prevent that the oil smoke from escaping, improve range hood's oil absorption cigarette efficiency, can purify the kitchen air better moreover.

Although preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a kitchen air purification system, includes range hood (10), is located range hood (10) nearby, installs air curtain mechanism (70) in neighbouring kitchen ceiling position, its characterized in that: the air curtain mechanism (70) is provided with an air outlet (71) for exhausting air towards the lower edge of the range hood (10), the speed of air flow blown out from the air outlet (71) of the air curtain mechanism (70) is gradually reduced along with the speed of the air flow close to the lower edge of the range hood (10), the speed of the air flow blown out from the air outlet (71) of the air curtain mechanism (70) is reduced to 0 within the range of 750mm in the vertical direction of the horizontal plane where the lower edge of the range hood (10) is located, and the distance (d) from the air outlet (71) of the air curtain mechanism (70) to the lower edge of the range hood (10) is 300mm to 1000mm;

the air purification device (50) is positioned on the front side of the air curtain mechanism (70), the air purification device (50) comprises at least one air inlet (11) communicated with the indoor space, and the air purification device (50) further comprises at least one air outlet (12) communicated with the indoor space;

the air purification device (50) comprises a shell (1) and an air purification unit (2) positioned in the shell (1), wherein the shell (1) is provided with an air inlet (11) and an air outlet (12), the air inlet (11) is communicated to an air inlet of the air purification unit (2), an air outlet of the air purification unit (2) is vertical to the air inlet of the air purification unit (2), and a fan (5) is arranged on the inner side of the shell (1);

other functional modules are arranged on an air channel between an air outlet of the air purification unit (2) and the fan (5) of the shell (1);

the air purification unit (2) comprises a coarse filtration unit (100) and/or a fine filtration unit (200);

openings are respectively formed in the upper surface and the lower surface of the shell (1) to form the air inlet (11), the air inlet of the air purification unit (2) is exposed out of the air inlet (11), two air outlets of the air purification unit (2) respectively face two opposite peripheral surfaces of the shell (1), and air outlets (12) are formed in the peripheral surface of the shell (1); or

The gas filter is characterized in that gas inlets (11) are formed in the peripheral surface and the upper surface of the shell (1), a gas outlet (12) is formed in the lower surface of the shell (1), the coarse filter unit (100) is arranged on the inner side of the peripheral surface of the shell (1) in a circle, the fine filter unit (200) is arranged below the gas inlet (11) in the upper surface, other functional modules and a fan (5) are arranged in the middle position below the fine filter unit (200), the side surfaces of the other functional modules are separated from the coarse filter unit (100), gas discharged by the coarse filter unit (100) upwards enters the fine filter unit (200), passes through the fine filter unit (200) and then enters the other functional modules; or

Air inlet (11) are located the upper surface and the lower surface of casing (1), and gas outlet (12) are located casing (1) global all around, and the intermediate position of casing (1) is equipped with fan (5), and the air outlet of fan (5) is connected to casing (1) global gas outlet (12) all around, and the income wind gap of fan (5) upwards respectively with set up downwards and communicate to air inlet (11) on casing (1) upper and lower surface to be equipped with air purification unit (2) between fan (5) and air inlet (11).

2. The kitchen air purification system of claim 1, wherein: the speed of the airflow blown out from the air outlet (71) of the air curtain mechanism (70) is reduced to 0 within the range of 300mm respectively along the upper direction and the lower direction of the horizontal plane of the range hood (10).

3. The kitchen air purification system of claim 1, wherein: the air blown out from the edge of the air outlet (71) close to one side of the range hood forms an angle alpha with the vertical direction, and the air blown out from the edge of the air outlet (71) far away from the range hood forms an angle beta with the vertical direction, wherein the angle alpha is-75 degrees, and the angle beta is-75 degrees.

4. The kitchen air purification system of claim 3, wherein: alpha is-45 to 45 degrees, beta is-45 to 45 degrees.

5. The kitchen air purification system of claim 1, wherein: the air blown out from the edges of the two ends of the air outlet (71) forms an angle gamma with the vertical direction, wherein the angle gamma is-80 degrees.

6. The kitchen air purification system of claim 1 or 2, characterized in that: the air outlet (71) of the air curtain mechanism (70) is a transversely extending strip-shaped outlet positioned at the top part near the range hood (10); or the air outlet (71) is an annular outlet positioned at the top part near the range hood (10); or the air outlet (71) is an arc-shaped outlet positioned at the top part near the range hood (10), and the circle center of the arc is positioned at one side of the range hood; or the air outlet (71) can also be in a wave shape positioned at the top part near the range hood (10); or the air outlets (71) are arranged at intervals.

7. The kitchen air purification system of claim 1, wherein: the air purification device (50) further comprises at least one air inlet (11) communicated with the range hood (10).

8. The kitchen air purification system of claim 1, wherein: the other functional modules comprise at least one of a sterilization module (3), a refrigeration and heating module (4), a smell removal module and a humidification module.

9. The kitchen air purification system of claim 8, wherein: the sterilizing module (3), the refrigerating and heating module (4), the odor removing module and the humidifying module are arranged from the air outlet to the air outlet of the air purifying unit and are arranged on the shell (1) in sequence.

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