CN216790314U - Filter equipment and oil smoke clarifier - Google Patents

Abstract

The utility model discloses a filtering device and an oil fume purifier, and relates to the field of catering. This filter equipment includes separating mechanism and goes out the tuber pipe, separating mechanism includes import and export, the oil smoke that gets into from the import forms pretreated gas through separating mechanism separation, pretreated gas discharges from the export, it is connected with separating mechanism to go out the tuber pipe, it offers the first passageway that is linked together with the export to go out to manage, the cross-sectional area of first passageway increases along pretreated gas's discharge direction gradually, the first passageway of this structure can reduce the velocity of flow of discharge pretreated gas, in order to guarantee the whole better purifying effect of oil smoke clarifier. The oil smoke clarifier can reach the better purifying effect to the oil smoke through using above-mentioned filter equipment.

Description

Filter equipment and oil smoke clarifier

Technical Field

The utility model relates to the field of catering, in particular to a filtering device and a smoke purifier.

Background

At present, along with the continuous enhancement of environmental protection consciousness of people, the oil fume purifier becomes a necessity in the catering industry, and the oil fume purifier is generally an electrostatic oil fume purifier, an activated carbon purifier, a UV purifier and the like.

Wherein, electrostatic oil smoke clarifier adopts high-voltage static principle to get rid of oil smoke or particulate matter, electrostatic oil smoke clarifier includes the casing, filter equipment and the clarifier body that adopts electrostatic treatment method, the wind channel has been seted up on the casing, filter equipment and clarifier body setting just arrange in proper order along the flow direction of oil smoke in the wind channel, make the oil smoke can form clean gas and pass through the pipe discharge through filter equipment and oil smoke clarifier in proper order through external fan, wherein casing and fan link to each other and arrange in proper order along the flow direction of oil smoke through the pipeline.

The filtering device mainly filters impurities such as large oil drops and large particles in oil smoke, and usually adopts a mesh-shaped or honeycomb-shaped mechanical filter screen, but the mechanical filter screen has dense gaps and is extremely easy to block, occupies about 80 percent of resistance of the electrostatic oil smoke purifier, increases the load of a fan, influences the purification efficiency of a subsequent purifier body, and increases the maintenance and cleaning frequency of the oil smoke purifier. For this purpose, some existing filtering devices include a centrifugal separation mechanism, the centrifugal separation mechanism includes an inlet and an outlet, the oil smoke performs a centrifugal motion in the centrifugal separation mechanism, so as to separate oil stains (including oil drops and particles) in the oil smoke from relatively clean pre-processing gas, and the pre-processing gas is discharged from the outlet and enters into the purifier body for further purification.

In order to ensure the centrifugal separation effect of the oil smoke, the flow velocity of the oil smoke in the centrifugal separation mechanism is required to be as fast as possible, so that the flow velocity of the pretreated gas discharged from the outlet when entering the purifier body is too fast, the pretreated gas cannot be sufficiently purified in the purifier body, and the overall purification effect of the oil smoke purifier is influenced.

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

SUMMERY OF THE UTILITY MODEL

One of the objectives of the present invention is to provide a filter device capable of reducing the flow rate of the exhaust pre-treatment gas to ensure a better purification effect of the whole smoke purifier.

In order to achieve the technical effects, the technical scheme of the utility model is as follows:

a filter apparatus including a separation mechanism including an inlet and an outlet, oil smoke entering from the inlet being separated by the separation mechanism to form a pre-treated gas, the pre-treated gas being discharged from the outlet, the filter apparatus further comprising:

and the air outlet pipe is connected with the separation mechanism, a first channel communicated with the outlet is formed in the air outlet pipe, and the cross sectional area of the first channel is gradually increased along the discharge direction of the pretreated gas.

Preferably, the separating mechanism is a spiral pipe, the axis of the spiral pipe is arranged along the vertical direction, the inlet is arranged at the upper end of the spiral pipe, and the outlet is arranged at the lower end of the spiral pipe.

Preferably, the diameter of the pipeline of the spiral pipe is defined as B, and the effective number of turns of the spiral pipe is N_eThe critical particle value of the oil fume is d_cSaid B, said N_eAnd d is_cThe following relationship is satisfied:

wherein A is a constant.

Preferably, the inner wall of the spiral pipe is provided with a non-stick layer.

Preferably, the filter device further comprises:

the air inlet pipe is connected with the separating mechanism and provided with a second channel communicated with the inlet, and the cross sectional area of the second channel is gradually reduced along the entering direction of the oil smoke.

Preferably, the filter device further comprises:

the separating mechanism, the air inlet pipe and the air outlet pipe are arranged in the shell, the shell is provided with a first opening and a second opening, the first channel is communicated with the second opening, and the second channel is communicated with the first opening.

Preferably, the casing includes windward plate and leeward plate that the interval set up, separating mechanism, the air-supply line with go out the tuber pipe and set up between windward plate and leeward plate, first opening sets up on the windward plate, the second opening sets up on the leeward plate.

Preferably, the filter device further comprises:

the oil guide structure is characterized in that an oil leakage opening is formed in the bottom wall of the air outlet pipe, an oil discharge opening is formed in the shell, the oil guide structure is communicated with the oil leakage opening and the oil discharge opening respectively, and the lowest point of the oil discharge opening is lower than the oil leakage opening.

Preferably, the number of the separating means is plural, and the plural separating means are arranged side by side.

The utility model has the beneficial effects that: the utility model provides a filtering device, and the cross sectional area of a first channel on an air outlet pipe is gradually increased along the discharge direction of pretreated gas, so that the discharge speed of the pretreated gas from the air outlet pipe is slowed down, and the overall better purification effect of an oil fume purifier can be realized.

Another objective of the present invention is to provide an oil fume purifier to ensure a better purification effect of the oil fume purifier as a whole.

In order to achieve the technical effects, the technical scheme of the utility model is as follows:

the oil smoke purifier comprises a machine shell and a purifier body, and further comprises the filtering device, wherein the filtering device and the purifier body are arranged in the machine shell and are arranged along the flowing direction of oil smoke.

The utility model has the beneficial effects that: the utility model provides an oil fume purifier, which can slow down the discharge speed of pretreated gas from an air outlet pipe by applying the filter device so as to ensure the integral better purification effect of the whole oil fume purifier.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a first schematic view of a filter apparatus according to an embodiment of the present invention with a hidden housing;

FIG. 2 is a second schematic view of a filter device according to an embodiment of the present invention with a hidden housing;

FIG. 3 is a first cross-sectional view of a filter assembly according to an embodiment of the present invention;

FIG. 4 is a force analysis diagram of the lampblack under the action of centrifugal force according to the embodiment of the utility model;

FIG. 5 is a second cross-sectional view of a filter assembly according to an embodiment of the present invention;

FIG. 6 shows B and N according to an embodiment of the present invention_eA graph of relationships between;

FIG. 7 is a first schematic structural diagram of a filter device according to an embodiment of the present invention;

FIG. 8 is a second schematic structural view of a filtration apparatus according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a filter device with a hidden leeward plate according to an embodiment of the present invention.

Reference numerals:

1. a separating mechanism; 11. an inlet; 12. an outlet;

2. an air outlet pipe; 21. a first channel; 22. an oil leakage port;

3. an air inlet pipe; 31. a second channel;

4. a housing; 41. a windward plate; 411. a first opening; 42. a leeward plate; 421. a second opening; 43. an accommodating space; 44. an oil discharge port;

5. an oil guiding structure; 51. a first side plate; 52. a base plate; 53. a baffle plate; 54. a second side plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

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.

It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the utility model. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning. Wherein the terms "first position" and "second position" are two different positions.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

Example one

As shown in fig. 1 and fig. 2, the present embodiment provides a filter device, which is generally used in a lampblack purifier and is disposed at the upstream of a purifier body, the filter device plays a role of pre-filtering lampblack, the filter device includes a separation mechanism 1, the separation mechanism 1 includes an inlet 11 and an outlet 12, the separation mechanism 1 is capable of separating lampblack entering from the inlet 11, and relatively clean pre-treated gas separated from the lampblack is discharged from the outlet 12.

The separation mechanism 1 in the prior art usually adopts a mesh-shaped or honeycomb-shaped mechanical filter screen, the mechanical filter screen can filter large oil drops and large particles in oil smoke, however, the mechanical filter screen has dense gaps and is easy to block, the mechanical filter screen occupies about 80% of resistance of the oil smoke purifier, the load of a fan is increased, the overall purification efficiency of the oil smoke purifier is influenced, and the maintenance and cleaning frequency of the oil smoke purifier is increased.

In order to solve the above problems, as shown in fig. 1 and 2, the separation mechanism 1 may be a centrifugal separation mechanism, the centrifugal separation mechanism separates the oil smoke into oil stain (including oil drop and particulate matter) and pretreatment gas by a centrifugal action, the centrifugal separation mechanism can improve oil smoke separation efficiency and is not easy to block, resistance of the oil smoke purifier is reduced, load of the fan is reduced, investment cost of the fan is reduced, pre-purification efficiency of the filter device is improved, and overall efficiency of the oil smoke purifier is improved. In order to ensure the separation effect of the oil smoke by the great centrifugal force, the flow velocity of the oil smoke in the separation mechanism 1 is usually required to be as fast as possible, so that the flow velocity of the pretreated gas discharged from the outlet 12 enters the purifier body is too fast, the pretreated gas cannot be sufficiently purified in the purifier body, and the overall purification effect of the oil smoke purifier is influenced.

In order to solve the above problem, as shown in fig. 2, the filtering apparatus further includes an air outlet pipe 2, the air outlet pipe 2 is connected to the separating mechanism 1, a first passage 21 communicated with the outlet 12 is provided on the air outlet pipe 2, the cross-sectional area of the first passage 21 is gradually increased along the discharging direction of the pre-treated gas, so as to slow down the flow velocity of the pre-treated gas discharged from the air outlet pipe 2, so that the pre-treated gas is fully purified in the purifier body, and the overall purifying effect of the oil smoke purifier is ensured.

Specifically, the air outlet pipe 2 can be a shell-shaped structure similar to a horn and formed by enclosing of metal plates, the appearance of the air outlet pipe 2 can be in a round table shape or a prismoid shape, and the cross section of the first channel 21 can be in a circular shape, an oval shape or a polygonal shape.

Further, as shown in fig. 1, the filtering device further includes an air inlet pipe 3, the air inlet pipe 3 is connected to the separating mechanism 1, the air inlet pipe 3 is provided with a second channel 31 communicated with the inlet 11, the cross-sectional area of the second channel 31 is gradually reduced along the entering direction of the oil smoke, and by the arrangement of the second channel 31, the second channel 31 can accelerate the oil smoke, which is beneficial to better centrifugal force separation of the oil smoke.

Specifically, the air inlet pipe 3 may be a shell-shaped structure similar to a horn, which is formed by enclosing a metal plate, and the shape of the air inlet pipe 3 may be circular truncated cone or truncated pyramid, that is, the cross section of the second channel 31 may be circular, elliptical, or polygonal.

As a preferred scheme, as shown in fig. 1 and fig. 2, the air inlet pipe 3, the separating mechanism 1 and the air outlet pipe 2 are welded in sequence to ensure the connection stability between the parts, avoid the air leakage phenomenon when the oil smoke flows in the filtering device, and realize the better centrifugal separation effect of the oil smoke in the filtering device.

Preferably, as shown in fig. 3, the number of the separation mechanisms 1 is provided with a plurality of separation mechanisms 1, the separation mechanisms 1 are arranged side by side, and the plurality of separation mechanisms 1 can simultaneously separate oil stains and pretreated gas from oil smoke, so as to improve the separation and filtration efficiency of the filter device.

The structure of the separating mechanism 1 will be described with reference to fig. 1 and 2, and in this embodiment, the separating mechanism 1 is provided as a spiral pipe having an axis arranged in a vertical direction, an inlet 11 provided at an upper end of the spiral pipe, and an outlet 12 provided at a lower end of the spiral pipe. A spiral pipeline with uniform diameter and turning back to the lower direction is formed in the spiral pipe, the oil smoke entering the spiral pipeline moves according to a spiral track shown in figure 3, and then the oil smoke is separated due to centrifugal force generated by spiral airflow. It can be understood that, after the oil smoke got into the spiral pipe and when rotatory downwards along the spiral pipe, under the effect of centrifugal force, on the greasy dirt in the oil smoke was got rid of the inner wall that the spiral pipe leaned on the outside, the greasy dirt flowed down along the spiral pipe under the action of self gravity, and the gaseous discharge of air-out pipe 2 department is followed to the preliminary treatment. In addition, in a limited space, the structure of the spiral pipe can prolong the flow path of the oil smoke, prolong the oil smoke separation time as far as possible and improve the oil smoke separation effect.

Certainly, in other embodiments, the separating mechanism 1 may also be configured as a cyclone separator, the cyclone separator can also enable the oil smoke to be spiral airflow through the blades arranged spirally inside the cyclone separator, and the cyclone separator can also achieve separation of oil stain and pretreated gas in the oil smoke through centrifugal separation.

As preferred scheme, be provided with on the inner wall of spiral pipe and not glue the layer to on the viscosity of avoiding the greasy dirt is too big and adheres to the inner wall of spiral pipe, avoid the spiral pipe inner wall to block up, guarantee the better velocity of flow of oil smoke and the better separation effect of spiral pipe. Illustratively, the non-stick layer may be made of polytetrafluoroethylene.

Referring to fig. 4, the centrifugal separation of the spiral tube is mechanically analyzed, as shown in fig. 4, in order to separate the oil smoke into oil stain and pretreatment gas under the action of centrifugal force, the following formula is required: f_T＞F_b+F_d；

Wherein, F_TIs the centrifugal force to which the oil smoke is subjected,

F_bis the centripetal force to which the oil smoke is subjected,

F_din order to resist the resistance to the oil smoke,

in particular, d is the diameter size of the particles in the oil stain, ρ_sIs the density of particles in the oil stain, ρ is the density of the oil fume, u_TIs the tangential velocity of the soot, u_rThe relative velocity of the particles and the oil smoke in the radial direction, and zeta is a resistance coefficient.

It is understood that when F_T＝F_b+F_dWhen the particle diameter obtained at this time is the critical value d_cBecause the filtering device mainly carries out primary filtering on the oil smoke, namely when d is more than d_cIn the process, particles can be separated from the oil smoke, namely the separation effect required by primary filtration is achieved.

Further, d can be obtained according to the formula_c＝f(μ,ρ_s,u_i,B,N_e) Where μ is the dynamic viscosity of the fluid, ρ_sIs the density of the soot particles, u_iFor the flow rate of the inflow of soot, B is the diameter of the spiral pipe, N, as shown in FIGS. 3 and 5_eIs the number of effective revolutions of the solenoid, wherein, as shown in fig. 5, the number of effective revolutions refers to the number of revolutions of the solenoid that maintain the same pitch.

Due to the fact that

Wherein Q is the intake air flow rate of the spiral tube, so d can be obtained_c＝f(μ,ρ_s,Q,B,N_e) Due to μ, ρ_sQ is constant, so d can be further obtained_c＝f(B,N_e) If the constant in the formula is represented by a, the following results:

thus, the following can be obtained finally:

specifically, as shown in FIG. 6, B and N are shown_eThe K value is known in actual use, so that the appropriate B, N can be selected according to the oil smoke condition in actual requirements_eThe values are matched to the optimum layout of the housing of the soot cleaner to obtain the optimum spiral. Considering B, N calculated according to the above formula_eThe values are not necessarily integers, and when the calculated values are non-integers B, N are applied_eThe oil fume separation device is rounded towards the larger direction, and the better oil fume separation effect of the spiral pipe is ensured through the design allowance.

Preferably, as shown in fig. 5, 7 and 8, the filtering apparatus further includes a housing 4, the separating mechanism 1, the air inlet pipe 3 and the air outlet pipe 2 are disposed in the housing 4, the housing 4 is opened with a first opening 411 and a second opening 421, the first passage 21 is communicated with the second opening 421, and the second passage 31 is communicated with the first opening 411. The air inlet pipe 3, the spiral pipe and the air outlet pipe 2 are integrated together by arranging the shell 4, so that the filtering device is convenient to assemble to other parts. In addition, the shell 4 has certain protection and support functions on the air inlet pipe 3, the spiral pipe and the air outlet pipe 2.

Preferably, as shown in fig. 5, the peripheral edge of the air inlet pipe 3 away from the separating mechanism 1 is welded and fixed to the housing 4, and the peripheral edge of the air outlet pipe 2 away from the separating mechanism 1 is welded and fixed to the housing 4, so that the housing 4 can be stably connected to the air inlet pipe 3 and the air outlet pipe 2, and the housing 4 can support the air inlet pipe 3, the spiral pipe and the air outlet pipe 2 well.

As a preferable scheme, as shown in fig. 5, 7 and 8, the housing 4 includes a windward plate 41 and a leeward plate 42 which are arranged at intervals, the separating mechanism 1, the air inlet pipe 3 and the air outlet pipe 2 are arranged between the windward plate 41 and the leeward plate 42, the first opening 411 is arranged on the windward plate 41, and the second opening 421 is arranged on the leeward plate 42, so that the phenomenon that the oil smoke flows backward from the air outlet pipe 2 can be avoided, and a better oil smoke separating and filtering effect of the filtering device is ensured.

Optionally, as shown in fig. 7 and 8, the housing 4 further includes a clip frame, the clip frame includes two openings, the windward plate 41 covers one opening, the leeward plate 42 is disposed on the other opening, the clip frame, the windward plate 41 and the leeward plate 42 together form a sealed accommodating space 43, and the separating mechanism 1, the air inlet pipe 3 and the air outlet pipe 2 are disposed in the accommodating space 43, so that a better protection effect of the housing 4 on the separating mechanism 1, the air inlet pipe 3 and the air outlet pipe 2 is achieved.

As a preferable scheme, as shown in fig. 7 to 9, the filtering device further includes an oil guiding structure 5, an oil leakage port 22 is formed in a bottom wall of the air outlet pipe 2, the oil guiding structure 5 is communicated with the oil leakage port 22, the oil stain separated from the separating mechanism 1 flows along the air outlet pipe 2, the oil stain flows into the oil guiding structure 5 from the oil leakage port 22, and the oil guiding structure 5 is used for collecting the oil stain separated from the separating mechanism 1.

Preferably, as shown in fig. 8 and 9, the casing 4 is provided with an oil discharge port 44, the oil guide structure 5 is respectively communicated with the oil leakage port 22 and the oil discharge port 44, the oil guide structure 5 can guide the oil stain to the outside of the casing 4, and an operator can recover the oil stain without taking out the oil guide structure 5 from the inside of the casing 4, so that the operator can operate the oil stain conveniently.

Further, as shown in fig. 8 and 9, the lowest point of the oil discharge port 44 is lower than the oil leakage port 22, and the oil stain flows along the oil guiding structure 5 and is discharged out of the oil discharge port 44 under the action of self gravity, so that the oil stain can be prevented from being stuck in the oil guiding structure 5, and the oil stain can be conveniently recovered and treated by an operator.

Referring to fig. 5 and 9, the structure of the oil guiding structure 5 is described, as shown in fig. 5 and 9, the oil guiding structure 5 includes a first side plate 51, a bottom plate 52 and a second side plate 54, the first side plate 51 and the second side plate 54 are respectively disposed in parallel with the leeward plate 42, the first side plate 51 and the second side plate 54 both extend along the arrangement direction of the plurality of separating mechanisms 1, the top end of the first side plate 51 and the top end of the second side plate 54 are connected to the air outlet pipe 2, the bottom plate 52 extends along the arrangement direction of the plurality of separating mechanisms 1 and is respectively connected to the bottom end of the first side plate 51 and the bottom end of the second side plate 54, the first side plate 51, the bottom plate 52 and the second side plate 54 form a drainage channel, the oil leakage port 22 and the oil discharge port 44 are respectively communicated with the drainage channel, the drainage channel can achieve an effect of guiding the oil discharged from the oil leakage port 22 to the oil discharge port 44, an operator can directly collect the oil from the oil discharge port 44, the oil stain is convenient for operators to recover and treat.

Preferably, as shown in fig. 9, the bottom plate 52 is inclined downward from the separating mechanism 1 farthest from the oil discharge port 44 to the oil discharge port 44, so that the oil stain can slide along the bottom plate 52 under the action of gravity and flow to the oil discharge port 44, thereby preventing the oil stain far away from the oil discharge port 44 from accumulating on the bottom plate 52 to block the oil guiding structure 5 and ensuring the oil stain in the oil guiding structure 5 to flow out smoothly.

In addition, as shown in fig. 9, in the present embodiment, only one set of oil guiding structure 5 is provided, the plurality of separating mechanisms 1 are all communicated with the oil guiding structure 5, and only one set of oil guiding structure 5 is provided, so that oil contamination in the plurality of separating mechanisms 1 can be recovered at the same time, and further, the structure of the whole filtering apparatus is as simple and compact as possible, and is convenient to disassemble, assemble and maintain.

In addition, as shown in fig. 9, the oil guiding structure 5 further includes a baffle 53, the baffle 53 is located at one end of the bottom plate 52 far away from the oil drainage port 44, and the baffle 53 is respectively connected with the first side plate 51, the bottom plate 52 and the second side plate 54, so as to prevent oil contamination from flowing into the casing 4 from one end of the drainage channel far away from the oil drainage port 44, and prevent the oil contamination from polluting the inside of the casing 4.

In addition, as preferred scheme, lead oily structure 5 and casing 4 detachably and connect, after collecting certain greasy dirt, still can take out leading oily structure 5 from casing 4, carry out centralized processing to the greasy dirt, convenient cleanness.

Of course, in other embodiments, the oil guiding structure 5 may also be an oil guiding pipe, one end of the oil guiding pipe is communicated with the oil leakage port 22, the other end of the oil guiding pipe is communicated with the oil discharge port 44, the oil discharge port 44 is lower than the oil leakage port 22, that is, the oil stain flows into the oil guiding pipe from the oil leakage port 22, and as the oil discharge port 44 is lower than the oil leakage port 22, the oil stain slides to the oil discharge port 44 along the oil guiding pipe under the action of gravity, so that the oil stain is conveniently discharged from the oil leakage port 22 to the outside of the housing 4.

As a preferred scheme, the oil guiding structure 5 further includes an oil collecting tray, the oil collecting tray is disposed outside the housing 4, and the oil collecting tray can bear oil stains discharged from the oil discharge port 44, so that the oil stains are prevented from polluting the external environment, and an operator can clean the oil collecting tray conveniently. Of course, in other embodiments, the oil drain port 44 and the oil collecting tray of the purifier body can be directly communicated through a pipeline, considering that the purifier body is provided with the oil collecting tray.

Because the greasy dirt can slide on the inner wall of the air outlet pipe 2 for a certain distance now and then fall into the oil collecting pipe 5 from the oil leakage opening 22, the inner wall of the air outlet pipe 2 is also provided with the non-stick layer, the non-stick layer is arranged on the inner wall of the air outlet pipe 2, the phenomenon that the greasy dirt blocks the inner wall of the air outlet pipe 2 due to the fact that the viscosity of the greasy dirt is too large and the greasy dirt adheres to the inner wall of the air outlet pipe 2 can be avoided. Illustratively, the non-stick layer may be made of polytetrafluoroethylene.

Example two

The embodiment also provides an oil smoke purifier, which comprises a casing, a purifier body and the first filter device, wherein the casing is provided with an air channel, the filter device and the purifier body are arranged in the air channel and along the flowing direction of oil smoke, and the oil smoke can sequentially pass through the filter device and the oil smoke purifier through an external fan to form clean air and is discharged through a pipeline. Filter equipment can get rid of large granule oil smoke, particulate matter, and this physical stamina of clarifier carries out further secondary filter to the filtered preliminary treatment gas through filter equipment to realize the better oil smoke filter effect of oil smoke clarifier.

The oil smoke clarifier of this embodiment can avoid from export 12 exhaust preliminary treatment gas velocity of flow too fast through the filter equipment of applied embodiment one, guarantees that preliminary treatment gas fully purifies in the clarifier body, has guaranteed the oil smoke filtration purifying effect of whole oil smoke clarifier.

In the description herein, references to the description of "some embodiments," "other embodiments," or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims (10)

1. A filter device comprising a separating mechanism (1), the separating mechanism (1) comprising an inlet (11) and an outlet (12), the lampblack entering from the inlet (11) being separated by the separating mechanism (1) to form a pretreated gas, the pretreated gas being discharged from the outlet (12), the filter device further comprising:

the air outlet pipe (2) is connected with the separating mechanism (1), a first channel (21) communicated with the outlet (12) is formed in the air outlet pipe (2), and the cross sectional area of the first channel (21) is gradually increased along the discharging direction of the pretreatment gas.

2. A filter device as claimed in claim 1, characterized in that the separating means (1) is a spiral tube, the axis of which is arranged in the vertical direction, the inlet (11) being provided at the upper end of the spiral tube and the outlet (12) being provided at the lower end of the spiral tube.

3. The filtration apparatus of claim 2, wherein the helix has a tube diameter of B and an effective number of turns of N, defining the helix as having a tube diameter of B_eThe critical particle value of the oil fume is d_cSaid B, said N_eAnd d is_cThe following relationship is satisfied:

wherein A is a constant.

4. The filter apparatus of claim 2, wherein the inner wall of the spiral tube is provided with a non-stick layer.

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

the oil fume separation device comprises an air inlet pipe (3), wherein the air inlet pipe (3) is connected with the separation mechanism (1), a second channel (31) communicated with the inlet (11) is formed in the air inlet pipe (3), and the cross sectional area of the second channel (31) is gradually reduced along the entering direction of oil fume.

6. The filtration device of claim 5, further comprising:

casing (4), separating mechanism (1) air-supply line (3) with it sets up to go out tuber pipe (2) in casing (4), first opening (411) and second opening (421) have been seted up in casing (4), first passageway (21) with second opening (421) are linked together, second passageway (31) with first opening (411) are linked together.

7. A filter device as claimed in claim 6, wherein the housing (4) comprises a windward plate (41) and a leeward plate (42) arranged at intervals, the separating means (1), the air inlet duct (3) and the air outlet duct (2) are arranged between the windward plate (41) and the leeward plate (42), the first opening (411) is arranged on the windward plate (41), and the second opening (421) is arranged on the leeward plate (42).

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

lead oily structure (5), leak hydraulic fluid port (22) have been seted up to the diapire of tuber pipe (2), oil drain port (44) have been seted up in casing (4), lead oily structure (5) respectively with leak hydraulic fluid port (22) with oil drain port (44) are linked together, the minimum of oil drain port (44) is less than leak hydraulic fluid port (22).

9. A filter device according to any one of claims 1-4, wherein there are provided a plurality of separating means (1), and a plurality of separating means (1) are arranged side by side.

10. An oil smoke purifier, comprising a casing and a purifier body, characterized in that the oil smoke purifier further comprises a filter device according to any one of claims 1-9, wherein the filter device and the purifier body are arranged in the casing and arranged along the oil smoke flowing direction.

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