CN216790313U

CN216790313U - Filter equipment and oil smoke clarifier

Info

Publication number: CN216790313U
Application number: CN202220092149.7U
Authority: CN
Inventors: 任富佳; 费本开; 陈尼青; 黄一丁
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-21
Anticipated expiration: 2032-01-14

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a filtering device and an oil smoke purifier. The filtering device comprises a shell with an inlet and an outlet, an electric field mechanism and a trapping mechanism, oil smoke flows in from the inlet and flows out from the outlet, the electric field mechanism comprises a body, a positive charge electric component and a negative charge electric component, the body is arranged between the inlet and the outlet in the shell, the body is provided with a plurality of channels which are not communicated with each other, the positive charge electric component is arranged in a part of the channels, the negative charge electric component is arranged in a part of the channels, the trapping mechanism is arranged between the body and the outlet in the shell, the filtering device has a good effect of eliminating fine particles, and is compact in internal structure and small in size. The oil smoke clarifier uses as above filter equipment, can reach the effectual of eliminating tiny particulate matter, and inner structure is compact and the size is less, keeps lasting high-efficient effect of purifying.

Description

Filter equipment and oil smoke clarifier

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a filtering device and an oil smoke purifier.

Background

The oil fume purifier is one kind of oil fume and waste gas treating apparatus, and is used mainly in purifying indoor low level exhausted oil fume, and can exhaust the exhausted waste gas produced in the production process or harmful oil fume produced in the cooking process fast to outside and filter and purify oil fume to reduce pollution. Wherein, the oil smoke clarifier mainly includes casing, fan and filter equipment etc. has seted up the wind channel on the casing, and filter equipment and fan setting are arranged in proper order in the wind channel and along the flow direction of oil smoke, and the fan makes the certain spatial dimension in kitchen range top form the negative pressure district, and the negative pressure makes indoor oil smoke process filter equipment, and filter equipment carries out the purification treatment to the oil smoke that produces among culinary art and the food production process and forms clean gas, and clean gas is finally outdoor through the pipeline discharge.

The filter equipment can be electrostatic oil smoke clarifier, active carbon clarifier, UV clarifier etc. generally, and fine particulate matter such as PM1, PM2.5 in the food and beverage oil smoke accounts for than can reaching 70% -90% at present, and fine particulate matter is also the biggest to the harm of human body moreover, but, fine particulate matter is difficult for subsiding, is changeed the diffusion for the aerosol state.

The electrostatic oil smoke clarifier that adopts at present can play better recovery effect to slight particulate matter, specifically speaking, electrostatic oil smoke clarifier includes along the preionization mechanism, ionization neutralization mechanism and the entrapment mechanism that the flow direction of oil smoke was arranged, preionization mechanism produces positive direct current high-voltage electric field, ionization neutralization mechanism produces negative direct current high-voltage electric field, slight particulate matter is at preionization mechanism charge positive electricity in the oil smoke, slight particulate matter is at ionization neutralization mechanism charge negative electricity and form the big particle size particulate matter, big particle size particulate matter is caught at the entrapment mechanism.

However, because the pre-ionization mechanism and the ionization neutralization mechanism are arranged at intervals along the flow direction of the oil smoke, the condensation effect of the positively charged oil smoke and the negatively charged oil smoke in the neutralization process is poor, and particles with large particle size are not easy to form, so that the filter device has low trapping efficiency on fine particles and poor purification effect. In addition, the filter device includes a large number of mechanisms and has a long length in the flow direction of the soot.

Therefore, it is desired to design a new filter device and a new oil smoke purifier to improve the above problems.

SUMMERY OF THE UTILITY MODEL

One object of the present invention is to provide a filter device, which is easy to neutralize fine particles in oil smoke into particles with large particle size, and has the advantages of high trapping efficiency for fine particles, good effect of eliminating fine particles, compact internal structure arrangement, and small size along the oil smoke flowing direction.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a filtration device comprising:

a housing including an inlet and an outlet, the cooking fumes being able to flow in from the inlet and out from the outlet;

an electric field mechanism including a body, a positive charge component and a negative charge component, wherein the body is disposed in the housing and between the inlet and the outlet, the body is opened with a plurality of channels, the channels are not communicated with each other, one part of the channels is provided with the positive charge component, and the other part of the channels is provided with the negative charge component; and

a trap mechanism disposed within the housing and between the body and the outlet.

As a preferable structure of the present invention, the plurality of channels extend in the oil smoke flowing direction and are arranged in a matrix, the positive charge electric components and the negative charge electric components in each row of the matrix are alternately arranged, and the positive charge electric components and the negative charge electric components in each column of the matrix are alternately arranged.

As a preferable structure of the present invention, the electric field mechanism further includes:

a power supply, the power supply includes a positive pole and a negative pole, the positive charge electric part with positive pole electric connection, the negative charge electric part with the negative pole electric connection, the body ground connection.

As a preferable structure of the present invention, the filter device further includes:

the oil smoke detection mechanism is arranged between the inlet and the electric field mechanism, the oil smoke detection mechanism is configured to detect the particle size distribution of the particles in the oil smoke and/or the oil smoke concentration of the oil smoke, and the electric field mechanism can adjust the self operation parameters according to the detected particle size distribution of the particles in the oil smoke and/or the oil smoke concentration of the oil smoke.

As a preferable structure of the present invention, the oil smoke detection mechanism includes:

a transmitter disposed in the housing and capable of emitting laser light; and

a receiver disposed in the housing, the receiver capable of receiving the laser light refracted by the soot.

first filtering mechanism, set up in oil smoke detection mechanism with between the electric field mechanism, first filtering mechanism includes along first windward side and the first leeward side that oil smoke flow direction arranged, has seted up many first separation channel on the first body of filtering, first separation channel by first windward side first leeward side extends and buckles the setting.

As a preferable structure of the present invention, the trapping mechanism includes:

the mounting frame is arranged between the electric field mechanism and the outlet;

the oil smoke collection device comprises an ionization module and a trapping module, wherein the ionization module and the trapping module are arranged on the mounting frame and are arranged along the oil smoke flowing direction, the ionization module is configured to enable the oil smoke to obtain first electric charges, the trapping module is configured to enable the oil smoke to obtain second electric charges, and the first electric charges and the second electric charges are opposite electric charges.

the second filtering mechanism is arranged between the electric field mechanism and the trapping mechanism and comprises a second windward side and a second leeward side which are distributed along the oil smoke flowing direction, a plurality of second separation channels are formed in the second filtering body, and the second separation channels are formed by extending and bending the second windward side towards the second leeward side.

As a preferred structure of the present invention, the trapping mechanism is communicatively connected to the soot detecting mechanism, and the trapping mechanism can adjust its own operating parameters according to the detected particle size distribution of the particulate matters in the soot and/or the soot concentration of the soot

The utility model aims to provide an oil fume purifier, which is easy to neutralize fine particles in oil fume into particles with large particle size, has high trapping efficiency, good effect of eliminating the fine particles, compact structure and smaller size along the flowing direction of the oil fume.

an oil smoke clarifier, includes foretell filter equipment.

The utility model has the beneficial effects that:

according to the filtering device provided by the utility model, the plurality of channels extending along the oil smoke flowing direction are arranged, the channels are not communicated, one part of the channels are internally provided with the positive charge electric part, the other part of the channels are internally provided with the negative charge electric part, the positively charged oil smoke and the negatively charged oil smoke are converged and mixed on the leeward side of the body, the condensation effect of the positively charged oil smoke and the negatively charged oil smoke in the neutralization process is better, large-particle-size particles are easy to form, the trapping mechanism is convenient to trap fine particles, and the filtering device has a good purifying effect on the fine particles. In addition, the filter device integrates a pre-ionization mechanism and an ionization neutralizing mechanism in the prior art, the number of the mechanisms in the filter device can be reduced, and the internal structure of the filter device is compact in arrangement and the size of the filter device in the flowing direction of oil smoke is reduced.

According to the oil smoke purifier provided by the utility model, by applying the filtering device, fine particles in oil smoke are easily neutralized into particles with large particle size, the trapping efficiency is high, the effect of eliminating the fine particles is good, the structure is compact, and the size of the oil smoke purifier along the flowing direction of the oil smoke is small.

Drawings

FIG. 1 is a cross-sectional view of a filter assembly according to an embodiment of the present invention;

FIG. 2 is a first schematic structural diagram of an electric field mechanism according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of an electric field mechanism according to a first embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a first filter mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a trap mechanism according to an embodiment of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

fig. 7 is a schematic structural diagram of a second filtering mechanism according to an embodiment of the present invention.

In the figure:

1. a housing; 11. an inlet; 12. an outlet; 2. an oil smoke detection mechanism; 21. a transmitter; 22. a receiver; 3. an electric field mechanism; 31. a body; 311. a second housing; 3111. a channel; 312. a first housing; 32. a positively charged electrical component; 33. a power source; 34. a negatively charged electrical component; 35. a support assembly; 4. a trapping mechanism; 41. a mounting frame; 411. grounding the pole piece; 412. a connecting rod; 42. an ionization module; 421. ionizing the pole piece; 422. an ionizing electrode; 43. a trapping module; 431. collecting the pole piece; 432. a trapping electrode; 5. a first filter mechanism; 51. a first filter body; 511. a first windward side; 512. a first leeward side; 513. a first separation channel; 52. a first oil receiving box; 6. a second filter mechanism; 61. a second filter body; 611. a second windward side; 612. a second leeward side; 613. a second separation channel; 62. a second oil receiving box;

100. oil smoke; 200. and cleaning the gas.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

As shown in fig. 1, the present embodiment provides a filtering apparatus, the filtering apparatus includes a housing 1, an electric field mechanism 3 and a trapping mechanism 4, the housing 1 includes an inlet 11 and an outlet 12, the oil smoke 100 can flow in from the inlet 11 and flow out from the outlet 12, the electric field mechanism 3 and the trapping mechanism 4 are disposed in the housing 1 and are arranged along the flowing direction of the oil smoke 100, fine particles in the oil smoke 100 form large particles at the electric field mechanism 3, and the trapping mechanism 4 can better trap the formed large particles, so the filtering apparatus of the present embodiment can not only filter the large particles, but also can filter the fine particles, the whole set of purification process fully considers the purification of the large, medium, and fine particles, improves the purification efficiency of the oil smoke purifier on the whole oil smoke, and reduces the harm of the oil smoke.

Most of the existing filtering devices are electrostatic oil smoke purifiers, the electric field mechanism 3 comprises a pre-ionization mechanism and an ionization neutralization mechanism which are arranged along the flowing direction of oil smoke 100, the pre-ionization mechanism, the ionization neutralization mechanism and the trapping mechanism are arranged along the flowing direction of the oil smoke 100, the pre-ionization mechanism generates a positive direct current high-voltage electric field, the ionization neutralization mechanism generates a negative direct current high-voltage electric field, fine particles in the oil smoke are positively charged in the pre-ionization mechanism, the fine particles in the oil smoke are negatively charged in the ionization neutralization mechanism to form large-particle-size particles, and the large-particle-size particles are trapped in the trapping mechanism. However, because the pre-ionization mechanism and the ionization neutralization mechanism are arranged at intervals along the flow direction of the oil smoke, the condensation effect of the positively charged oil smoke and the negatively charged oil smoke in the neutralization process is poor, and particles with large particle size are not easy to form, so that the filter device has low trapping efficiency on fine particles and poor purification effect. In addition, the filter device includes a large number of mechanisms and has a long length in the flow direction of the soot.

In order to solve the above problem, as shown in fig. 1 and fig. 2, the electric field mechanism 3 of the present embodiment includes a body 31, a positive charge electric component 32, and a negative charge electric component 34, the body 31 is disposed in the housing 1 and located between the inlet 11 and the trapping mechanism 4, the body 31 is opened with a plurality of channels 3111 for the oil smoke 100 to pass through, and the channels 3111 are not communicated with each other, a positive charge electric component 32 is disposed in one of the channels 3111, the positive charge electric component 32 can positively charge the oil smoke 100 in the corresponding channel 3111, a negative charge electric component 34 is disposed in the other of the channels 3111, and the negative charge electric component 34 can negatively charge the oil smoke 100 in the corresponding channel 3111. The fine particles with different charges can be uniformly mixed and neutralized after leaving the channel 3111 to form particles with large particle size, which are easy to be trapped by the trapping mechanism 4, and the purification efficiency is higher. The trapping mechanism 4 is arranged in the shell 1 and positioned between the body 31 and the outlet 12, traps the neutralized large-particle-size particles, and has a good purification effect.

In the filtering device of the embodiment of the utility model, a plurality of channels 3111 which are not communicated with each other are arranged in the body 31 for the oil smoke 100 to pass through, a positive charge electric part 32 is arranged in part of the channels 3111, a negative charge electric part 34 is arranged in part of the channels 3111, the positively charged oil smoke 100 and the negatively charged oil smoke 100 are converged and mixed on the leeward side of the body 31 for neutralization, the positively charged oil smoke 100 and the negatively charged oil smoke 100 have better condensation effect in the neutralization process, large-particle-size particles are easy to form, the trapping mechanism 4 is convenient for trapping the fine particles, the trapping efficiency is high, the fine particles in the oil smoke 100 are better removed, the fine particle components in the clean gas 200 are reduced, the purifying effect is reliable, and the oil smoke harm and the harmful pollution to the environment are reduced. Moreover, the pre-ionization mechanism and the ionization neutralizing mechanism in the prior art are combined into one by the filter device, the number of the mechanisms in the filter device can be reduced, the internal structure of the filter device is compactly arranged, and the size of the filter device in the flowing direction of the oil smoke is reduced.

As shown in fig. 2, the body 31 includes a plurality of first housings 312 and a second housing 311, the second housing 311 has a receiving space, the receiving space is respectively communicated with the inlet 11 and the outlet 12, the plurality of first housings 312 are disposed inside the second housing 311, the channel 3111 on the first housing 312 is used for the oil smoke 100 to pass through, when one or more of the plurality of first housings 312 are damaged, an operator only needs to replace the damaged first housing 312, and the updating and maintenance cost of the body 31 can be effectively saved. Of course, in other embodiments, the body 31 may also be a solid structure in a cubic shape, and the plurality of channels 3111 may be directly formed on the solid structure, so that the body 31 has a simple structure and is easy to manufacture. Specifically, as shown in fig. 2, the cross-sectional shape of the passage 3111 may be a square, a circle, a hexagon, or other shapes, but the present embodiment is not limited thereto, and the passage 3111 may be sufficient for the oil smoke 100 to pass through.

Preferably, as shown in fig. 2, the plurality of channels 3111 extend along the flow direction of the soot 100 and are arranged in a matrix, the positive charge electric components 32 and the negative charge electric components 34 in each row of the matrix are alternately arranged, and the positive charge electric components 32 and the negative charge electric components 34 in each column of the matrix are also alternately arranged, so that an equal number of positive charge electric components 32 and negative charge electric components 34 can be provided; when the particulate matter of oil smoke 100 passes through electric field mechanism 3, passageway 3111 that arranges in turn sets up makes there is half particulate matter electric charge positive electricity, there is half particulate matter electric charge negative electricity, the matching degree of opposite sex electric charge is better, the particulate matter that has different charges can be more even in body 31's leeward side department mixedly after leaving passageway 3111, easily form the particulate matter of big particle diameter, the neutralization effect is better, be convenient for by the entrapment of entrapment mechanism 4 entrapment, the entrapment efficiency is higher, the fine particulate matter of greatly reduced oil smoke 100, it is more thorough to make the purification.

It should be noted that, in other embodiments, the plurality of channels 3111 may also form other arrangements, such as a honeycomb arrangement, the positive charge electric components 32 and the negative charge electric components 34 are alternately arranged along the transverse direction of the honeycomb structure, and the positive charge electric components 32 and the negative charge electric components 34 are alternately arranged along the longitudinal direction of the honeycomb structure, so as to achieve the effect of more uniform mixing of the particles with different charges after leaving the channels 3111.

Preferably, as shown in fig. 3, the electric field mechanism 3 further includes a power source 33, the power source 33 includes a positive electrode and a negative electrode, the positive charge component 32 is electrically connected to the positive electrode, the negative charge component 34 is electrically connected to the negative electrode, and the body 31 is grounded. It can be understood that a positive ionization electric field is formed between the positive charge electric component 32 and the body 31, a negative ionization electric field is formed between the negative charge electric component 34 and the body 31, the soot 100 passing through the positive ionization electric field can be positively charged, and the soot 100 passing through the negative ionization electric field is negatively charged. Preferably, the positive charge component 32 and the negative discharge component 34 may be electrode rods extending along the flow direction of the soot 100, and the outer circumference of the electrode rods may be in various forms such as a needle shape, a thorn shape, a saw-tooth shape, and the like.

As a preferred scheme, as shown in fig. 2, the electric field mechanism 3 further includes a supporting component 35, the supporting component 35 is disposed in the channel 3111 and is used for supporting the electrode rod, the supporting component 35 can achieve a better supporting effect on the electrode rod, the problem of short circuit caused by the contact between the electrode rod and the body 31 is avoided, and the channel 3111 is ensured to form a stable electric field all the time.

Specifically, as shown in fig. 2, the cross section of the channel 3111 is square, the support assembly 35 includes four sets of support members, the support members are connected to four corners of the channel 3111, the support members extend from the corners of the channel 3111 to the middle of the channel 3111, the free ends of the four support members respectively abut against the periphery of the electrode rod, and the four support members can clamp the electrode rod together, so that the support assembly 35 can support the electrode rod well.

Preferably, as shown in fig. 2, the supporting member includes a corner portion, a supporting portion and an abutting portion, the supporting portion extends from the corner portion to the middle position of the channel 3111, the abutting portion is disposed at one end of the supporting portion away from the corner portion, the abutting portion is a curved surface, the size and shape of the curved surface correspond to the shape and size of the outer circumferential surface of the electrode rod, one side of the abutting portion facing the electrode rod abuts against the outer circumference of the electrode rod, the contact area between the abutting portion and the outer circumference of the electrode rod is large, and therefore the abutting portion can firmly support the electrode rod.

Preferably, the material of the supporting part can be metal or alloy, so that the supporting effect of the supporting part on the electrode bar is realized. Preferably, the abutting portion is made of an insulating material such as plastic or ceramic, and the abutting portion is used for isolating the electrical connection between the electrode rod and the body 31 and preventing the electrode rod from being short-circuited with the body 31.

As a preferable scheme, as shown in fig. 1, the filtering apparatus further includes a smoke detection mechanism 2 and a controller, the smoke detection mechanism 2 and the electric field mechanism 3 are electrically connected to the controller, respectively, the smoke detection mechanism 2 is disposed between the inlet 11 and the electric field mechanism 3, the smoke detection mechanism 2 is configured to detect the particle size distribution of the particles in the smoke 100 and/or the smoke concentration of the smoke 100 and transmit corresponding data to the controller, and the controller adjusts the operating parameters of the electric field mechanism 3 according to the detected particle size distribution of the particles in the smoke 100 and/or the detected smoke concentration of the smoke 100. Through the operating parameter of adjustment electric field mechanism 3, make electric field mechanism 3's electric field strength change along with the particle size distribution of oil smoke 100 and/or the oil smoke concentration of oil smoke 100 to can control the speed of driving in the particulate matter in oil smoke 100, make it easily by ionization neutralization and entrapment, and make filter equipment keep lasting efficient purifying effect, realize electric field mechanism 3's operating parameter and under the different work condition oil smoke 100's matching degree, promote filter equipment's suitability. The operating parameters of the electric field mechanism 3 may include the output voltage or output current of the power supply 33, and the electric field strength in the channel 3111 is controlled by controlling the output voltage or output current of the power supply 33.

It should be noted that in the embodiment of the present invention, the driving speed ω of the particulate matter is preferably 0.2m/s to 2 m/s. The utility model also provides a preferable embodiment, when the number of the particulate matters smaller than or equal to 2.5 mu m in the oil smoke 100 accounts for more than 60 percent and the concentration of the oil smoke is more than 20mg/m³If so, adjusting the first output voltage of the electric field mechanism 3 to be 12-15 kV; when the number of the particles smaller than or equal to 2.5 μm in the oil smoke 100 accounts for not more than 60% or the concentration of the oil smoke is not more than 20mg/m³The first output voltage of the electric field adjusting mechanism 3 is 9-12 kV. The first output voltage can keep the driving speed omega of the oil smoke to be 0.2m/s-2 m/s.

More specifically, when the amount of the particulate matters less than or equal to 2.5 μm in the oil smoke 100 is more than 60%, and the concentration of the oil smoke is more than 20mg/m³The first output current of the electric field mechanism 3 is 0.4mA-0.7 mA. When the number of the particles smaller than or equal to 2.5 μm in the oil smoke 100 accounts for not more than 60% or the concentration of the oil smoke is not more than 20mg/m³Then, the first output current of the electric field mechanism 3 is adjusted to 0.3mA-0.5 mA. It is understood that the first output current varies according to the load of the electric field mechanism 3, and the embodiment is not limited herein.

As shown in fig. 1, the lampblack detection mechanism 2 includes a transmitter 21 and a receiver 22 which are arranged in the housing 1, the transmitter 21 can transmit laser, the receiver 22 can receive the laser refracted by the lampblack 100, and the receiver 22 analyzes the particle size distribution of the particulate matters in the lampblack 100 and/or the lampblack concentration of the lampblack 100 according to the condition of the refracted laser. The oil smoke detection mechanism 2 can be a split type laser particle size detector, which belongs to a mature technical form and is available at present, so the specific structure of the oil smoke detection mechanism 2 is not explained any more in the embodiment.

Preferably, as shown in fig. 1, the filtering apparatus further includes a first filtering mechanism 5, and the first filtering mechanism 5 is disposed between the oil smoke detecting mechanism 2 and the electric field mechanism 3, and is used for pre-trapping the oil smoke 100 about to enter the electric field mechanism 3, removing large-particle-size particles in the oil smoke 100, and fully considering the purification requirements of the particles with different particle sizes, so as to improve the purification efficiency. As shown in fig. 1, the first filtering mechanism 5 includes a first filtering body 51, the first filtering body 51 includes a first windward surface 511 and a first leeward surface 512 arranged along the flow direction of the lampblack 100, a plurality of first separating channels 513 are disposed on the first filtering body 51, and the first separating channels 513 extend from the first windward surface 511 to the first leeward surface 512. The oil smoke 100 flows through different first separation channels 513, and the large-particle-size particles exceeding 10 μm in the oil smoke 100 collide with the inner wall of the first separation channel 513 and are captured, so that the purification effect of the large-particle-size particles is improved.

Preferably, as shown in fig. 1, the first separation channel 513 is bent from the first windward surface 511 to the first leeward surface 512, so as to extend the length of the traveling path of the soot 100 in the first filter body 51 and improve the filtering effect on large-particle soot exceeding 10 μm or more. Moreover, the first separation channel 513 arranged in a bent manner is wavy, which is beneficial to flow equalization of the oil smoke 100, so that the flowing oil smoke 100 has uniform airflow distribution and uniform flow velocity, and can more uniformly enter different channels 3111 in the electric field mechanism 3.

Preferably, as shown in fig. 4, the plurality of first separation channels 513 are distributed in a matrix, as shown in fig. 1, the first filtering mechanism 5 further includes a first oil receiving box 52, the first separation channels 513 adjacent to each other in the vertical direction are communicated with each other, oil leakage holes are formed in the bottom surface of the first separation channel 513 located at the lowermost layer, and the first oil receiving box 52 is disposed right below all the oil leakage holes. The large-particle lampblack in the first separation channel 513 on the upper layer flows into the first separation channel 513 on the lower layer, and the large-particle lampblack in the first separation channel 513 on each layer is collected into the first separation channel 513 on the lowermost layer and falls into the first oil receiving box 52 from the oil leakage hole, so that the recovery of the large-particle lampblack on each layer by the first oil receiving box 52 is realized.

Preferably, as shown in fig. 5, the trap mechanism 4 includes a mounting frame 41, an ionization module 42, and a trap module 43. The mounting frame 41 is arranged between the field mechanism 3 and the outlet 12. The ionization module 42 and the trapping module 43 are disposed on the mounting frame 41 and are arranged along a flowing direction of the oil smoke 100, the ionization module 42 is configured to make the oil smoke 100 obtain a first electric charge, and the trapping module 43 is configured to make the oil smoke 100 obtain a second electric charge, where the first electric charge and the second electric charge are opposite electric charges. The large-particle-size particulate matters formed after ionization and neutralization by the electric field mechanism 3 enter the mounting frame 41 and obtain a first charge in the ionization module 42, and then flow into the trapping module 43 to obtain a second charge with the polarity opposite to that of the first charge, so that the large-particle-size particulate matters are trapped and neutralized under the action of the electric field force, the whole purification process of the oil smoke 100 is completed, and the clean gas 200 is formed and flows out from the outlet 12.

Specifically, as shown in fig. 6, the mounting frame 41 is grounded, a plurality of grounding pole pieces 411 horizontally arranged in parallel are arranged in the mounting frame 41, and the grounding pole pieces 411 are communicated with the mounting frame 41 through a connecting rod 412 and are synchronously grounded; the ionization module 42 comprises a plurality of ionization pole pieces 421 horizontally arranged in parallel, and the ionization pole pieces 421 are connected in parallel and electrically connected with a direct-current high-voltage power supply through ionization electrodes 422; the trapping module 43 comprises a plurality of trapping pole pieces 431 horizontally arranged in parallel, and the trapping pole pieces 431 are connected in parallel and electrically connected with a direct-current high-voltage power supply through trapping electrodes 432. An ionization electric field is formed between the ionization pole piece 421 and the grounding pole piece 411, so that the particles of the oil smoke 100 obtain a first charge; a trapping electric field is formed between the trapping pole piece 431 and the grounding pole piece 411, and the particulate matters with the first charge obtain charges with the polarity opposite to that of the first charge when passing through the trapping module 43, and are trapped and neutralized under the action of the electric field force. The trapping performance of the trapping mechanism 4 can be adjusted by adjusting the number and the distance among the grounding pole piece 411, the ionizing pole piece 421 and the trapping pole piece 431, so that the trapping mechanism is suitable for different working environments and purification requirements.

Preferably, as shown in fig. 1, the filter device further includes a second filter means 6, and the second filter means 6 is disposed between the electric field means 3 and the collection means 4, and is used for secondarily collecting the soot 100 that is about to enter the collection means 4, and removing the large-particle-diameter particulate matter exceeding 10 μm after the neutralization, so that the collection means 4 focuses on collecting the particulate matter not exceeding 10 μm, and the collection efficiency is higher. As shown in fig. 1, the second filter mechanism 6 includes a second windward surface 611 and a second leeward surface 612 which are arranged along the flow direction of the oil smoke 100, the second filter body 61 is provided with a plurality of second separation channels 613, and the second separation channels 613 extend from the second windward surface 611 to the second leeward surface 612. The oil smoke 100 flows through the different second separation channels 613, and the particulate matters with large particle sizes exceeding 10 μm in the oil smoke 100 collide with the inner wall of the second separation channel 513 and are trapped, so that the trapping load of the trapping mechanism 4 is reduced, and the purification effect is further improved.

Preferably, as shown in fig. 1, the second separating channel 613 is bent from the second windward surface 611 to the second leeward surface 612, so as to extend the length of the traveling path of the soot 100 in the second filter body 61, thereby improving the filtering effect on large-particle soot exceeding 10 μm. Moreover, the second separation channel 513 bent is wavy, which is beneficial to flow equalization of the oil smoke 100, so that the flowing oil smoke 100 has uniform airflow distribution and uniform flow velocity, and can more uniformly enter the trapping mechanism 4, thereby improving the ionization effect in the ionization module 42.

Preferably, as shown in fig. 7, the plurality of second separation channels 613 are distributed in a matrix, as shown in fig. 1, the second filter mechanism 6 further includes a second oil receiving box 62, the second separation channels 613 adjacent to each other in the vertical direction are communicated with each other, oil leakage holes are formed in the bottom surface of the second separation channel 613 located at the lowermost layer, and the second oil receiving box 62 is disposed right below all the oil leakage holes. The large-particle lampblack in the second separation channel 613 of the upper layer flows into the second separation channel 613 of the lower layer, and the large-particle lampblack in the second separation channel 613 of each layer is collected into the second separation channel 613 of the lowermost layer and falls into the second oil receiving box 62 from the oil leakage hole, so that the recovery of the large-particle lampblack of each layer by the second oil receiving box 62 is realized.

Preferably, the trapping mechanism 4 is communicatively connected to the soot detecting mechanism 2, and the trapping mechanism 4 can adjust its operating parameters according to the detected particle size distribution of the particulate matters in the soot 100 and/or the soot concentration of the soot 100. Through the operating parameter of adjustment entrapment mechanism 4, make the electric field intensity of entrapment mechanism 4 change along with the particle size distribution of oil smoke 100 and/or the oil smoke concentration of oil smoke 100 to can control the speed of driving of particulate matter in the oil smoke 100, make it easily by ionization neutralization and entrapment, and make filter equipment keep lasting efficient purifying effect, realize the matching degree of oil smoke 100 under the operating parameter of entrapment mechanism 4 and the different work condition, promote filter equipment's suitability. The operating parameters of trapping mechanism 4 may include output voltage or output current by which the electric field strength within ionization module 42 and trapping module 43 is controlled.

Preferably, adjusting the operating parameters of the trapping mechanism 4 comprises: when the number of the particles smaller than or equal to 2.5 μm in the oil smoke 100 accounts for more than 60 percent and the concentration of the oil smoke is more than 20mg/m³If so, adjusting the second output voltage of the trapping mechanism 4 to be 12-15 kV; when the number of the particles smaller than or equal to 2.5 μm in the oil smoke 100 accounts for not more than 60% or the concentration of the oil smoke is not more than 20mg/m³Then, the second output voltage of the trap mechanism 4 is adjusted to 9-12 kV. The second output voltage can keep the driving speed omega of the oil smoke to be 0.2m/s-2 m/s.

More specifically, when the number of particles smaller than or equal to 2.5 μm in the oil smoke 100 is larger than 60%, and the concentration of the oil smoke is larger than 20mg/m³The second output current of the trap mechanism 4 is 0.4mA to 0.7 mA. When the number of the particles less than or equal to 2.5 mu m in the oil smoke 100 accounts for not more than 60 percent or the concentration of the oil smoke is not more than 20mg/m³Then the second output current of the trap mechanism 4 is adjusted to 0.3mA to 0.5 mA. It will be appreciated that the second output current will vary depending on the detected load of the trap mechanism 4, and that the present invention is applicableThe embodiments are not limited herein.

Example two

The second aspect of the embodiment of the present invention further provides an oil fume purifier, which includes a casing, a fan and the filtering device in the first embodiment, wherein an air duct is formed in the casing, the filtering device and the fan are both disposed in the air duct, the fan is capable of forming a negative pressure so that the oil fume 100 passes through the filtering device to form the clean air 200, and the clean air 200 passes through the fan and the duct to be discharged to the outside. The electric field mechanism 3 of the filtering device enables the positively charged oil smoke 100 and the negatively charged oil smoke 100 to have better condensation effect in the neutralization process through the alternately arranged channels 3111, thereby being easy to form large-particle-size particles, facilitating the trapping of the trapping mechanism 4 on fine particles, having stronger capability of removing the fine particles in the oil smoke 100 and higher purification efficiency; the electric field mechanism 3 integrates a pre-ionization mechanism and an ionization neutralization mechanism in the prior art, the number of mechanisms in the oil fume purifier can be reduced, and the oil fume purifier is compact in arrangement and reduced in size along the flowing direction of oil fume.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A filter device, comprising:

a housing (1), the housing (1) comprising an inlet (11) and an outlet (12), the cooking fumes (100) being able to flow in from the inlet (11) and out from the outlet (12);

an electric field mechanism (3) comprising a body (31), a positive charge component (32) and a negative charge component (34), wherein the body (31) is disposed in the housing (1) between the inlet (11) and the outlet (12), the body (31) is provided with a plurality of channels (3111), the channels (3111) are not communicated with each other, one part of the channels (3111) is provided with the positive charge component (32), and the other part of the channels (3111) is provided with the negative charge component (34); and

a trap mechanism (4) disposed within the housing (1) and between the body (31) and the outlet (12).

2. The filter device according to claim 1, wherein the plurality of channels (3111) extend in a flow direction of the soot (100) and are arranged in a matrix, the positively charged electrical components (32) and the negatively charged electrical components (34) in each row of the matrix are alternately arranged, and the positively charged electrical components (32) and the negatively charged electrical components (34) in each column of the matrix are alternately arranged.

3. The filtering device according to claim 1, wherein the electric field means (3) further comprise:

a power source (33), the power source (33) including a positive electrode and a negative electrode, the positive charge component (32) being electrically connected to the positive electrode, the negative charge component (34) being electrically connected to the negative electrode, the body (31) being grounded.

4. The filtration apparatus of any one of claims 1 to 3, further comprising:

the oil smoke detection mechanism (2) is arranged between the inlet (11) and the electric field mechanism (3), the oil smoke detection mechanism (2) is configured to detect the particle size distribution of particles in the oil smoke (100) and/or the oil smoke concentration of the oil smoke (100), and the electric field mechanism (3) can adjust the operation parameters of the electric field mechanism according to the detected particle size distribution of the particles in the oil smoke (100) and/or the oil smoke concentration of the oil smoke (100).

5. A filtering device according to claim 4, characterized in that said fume detecting means (2) comprise:

a transmitter (21) provided in the housing (1) and capable of transmitting laser light; and

a receiver (22) disposed in the housing (1), the receiver (22) being capable of receiving the laser light refracted by the soot (100).

6. The filtration device of claim 4, further comprising:

first filtering mechanism (5), set up in oil smoke detection mechanism (2) with between electric field mechanism (3), first filtering mechanism (5) include along first windward side (511) and first leeward side (512) that oil smoke (100) flow direction arranged have seted up many first separation channel (513) on first filter body (51), first separation channel (513) by first windward side (511) to first leeward side (512) extend and buckle the setting.

7. A filter device as claimed in any one of claims 1 to 3, characterised in that the trapping means (4) comprise:

a mounting frame (41) arranged between the electric field mechanism (3) and the outlet (12);

the oil smoke collecting device comprises an ionization module (42) and a trapping module (43), wherein the ionization module (42) and the trapping module (43) are arranged on the mounting frame (41) and are arranged along the flowing direction of the oil smoke (100), the ionization module (42) is configured to enable the oil smoke (100) to obtain first charges, the trapping module (43) is configured to enable the oil smoke (100) to obtain second charges, and the first charges and the second charges are opposite charges.

8. A filter device as claimed in any one of claims 1 to 3, further comprising:

the second filtering mechanism (6) is arranged between the electric field mechanism (3) and the collecting mechanism (4), the second filtering mechanism (6) comprises a second windward surface (611) and a second leeward surface (612) which are distributed along the flowing direction of the oil smoke (100), a plurality of second separating channels (613) are formed in the second filtering body (61), and the second separating channels (613) are formed in a way that the second windward surface (611) extends towards the second leeward surface (612) and are bent.

9. The filtering device according to claim 4, characterized in that the trapping means (4) is connected in communication with the soot detection means (2), and the trapping means (4) is capable of adjusting its own operating parameters according to the detected particle size distribution of the particulate matter in the soot (100) and/or the soot concentration of the soot (100).

10. A soot purifier comprising the filter device according to any one of claims 1 to 9.