CN112107950A

CN112107950A - Method for purifying oil fume

Info

Publication number: CN112107950A
Application number: CN202010805849.1A
Authority: CN
Inventors: 张党生; 莫浩楠; 钟荣辉
Original assignee: Guangzhou Shuangqiang Electromechanical Equipment Co ltd
Current assignee: Guangzhou Shuangqiang Electromechanical Equipment Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2020-12-22

Abstract

The invention discloses a method for purifying oil smoke, which comprises the following steps of enabling the oil smoke to enter an oil smoke channel of purification equipment, spraying water to the oil smoke to form aerosol, and performing multiple filtration to complete dry-wet separation, wherein condensation treatment is adopted in the dry-wet separation process. The oil smoke and the water are mixed to form aerosol, so that the adsorption is facilitated, the condensation treatment is performed on the oil smoke in the treatment process, the peculiar smell of the oil smoke is reduced, gaseous substances in the oil smoke are liquefied, the adsorption is facilitated, and the invention can be widely applied to the technical field of oil smoke treatment.

Description

Method for purifying oil fume

Technical Field

The invention relates to the technical field of oil fume treatment, in particular to a method for purifying oil fume.

Background

The development and utilization of oil fume purification and air purification equipment are particularly important and prominent in the current social large environment with energy conservation, emission reduction, health and environmental protection, and the oil fume purification technology mainly comprises the following steps: 1, a mechanical purification method, which purifies the oil smoke by utilizing gravity, inertial collision and surface adsorption; 2, centrifugal purification, namely separating and purifying the oil smoke by using centrifugal force; 3, a catalytic oxidation method, under the action of a catalyst, converting the oil smoke pollutants into harmless substances through high-temperature combustion. The above treatment methods all have the disadvantage of poor purification effect, for example, the equipment for treating oil fume by mechanical purification method has poor purification effect due to insufficient adsorption.

Disclosure of Invention

In order to solve at least one of the above technical problems, improve the purification effect of the oil smoke, and enhance the adsorption, the invention provides a method for purifying the oil smoke, which adopts the following technical scheme:

the method for purifying the oil smoke provided by the invention specifically comprises the steps of enabling the oil smoke to enter an oil smoke channel of purification equipment, spraying water to the oil smoke to form aerosol, and performing filtration for multiple times to complete dry-wet separation, wherein condensation treatment is adopted in the dry-wet separation process.

In some embodiments of the present invention, the lampblack forms a plurality of swirling vortices in the lampblack passage, and the water is sprayed to the lampblack forming the vortices to form aerosol.

In some embodiments of the invention, the water is sprayed to form a fine mist to mix with the soot.

In some embodiments of the present invention, the flow rate of the cooking fumes in the cooking fume passage is gradually slowed, and the flow rate at the outlet is increased.

In some embodiments of the invention, each filter element in the oil smoke channel has a self-cleaning function.

In some embodiments of the invention, the filter element drops the adsorbed oil smoke particles in a self-swinging mode, the filter element is provided with the tail wing, and the tail wing swings under the driving of the wind energy of the oil smoke, so that the tail wing drives the filter element to swing.

In some embodiments of the invention, the filter holes of the filter element are provided with the swinging parts, the swinging parts are provided with the tail wings, and the tail wings swing under the driving of the wind energy of the oil smoke, so that the tail wings drive the swinging parts to swing.

In some embodiments of the present invention, the filter holes in the filter element are arranged in an arc shape to extend the path of the adsorbed soot particles.

In some embodiments of the present invention, a path is disposed in the oil smoke passage from bottom to top.

The embodiment of the invention has at least the following beneficial effects: the oil smoke and the water are mixed to form aerosol, so that the adsorption is facilitated, the condensation treatment is performed on the oil smoke in the treatment process, the peculiar smell of the oil smoke is reduced, gaseous substances in the oil smoke are liquefied, the adsorption is facilitated, and the invention can be widely applied to the technical field of oil smoke treatment.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a block diagram of a purification apparatus;

FIG. 2 is a view showing an installation structure of a first treating unit in the purifying apparatus;

FIG. 3 is a view showing an installation structure of a second treating unit in the cleaning apparatus;

FIG. 4 is a view showing an installation structure of a third treating unit in the cleaning apparatus;

FIG. 5 is a view showing an installation structure of a fourth processing unit in the purification apparatus;

FIG. 6 is a schematic distribution diagram of the first processing unit, the second processing unit, and the third processing unit in a top view;

FIG. 7 is a schematic diagram of a path for distributing oil smoke by a flow stabilizing member in the first treatment unit;

FIG. 8 is a block diagram of a second processing unit;

FIG. 9 is a block diagram of a third processing unit;

FIG. 10 is a schematic view of a flow path of soot in the third processing unit;

fig. 11 is a structural diagram of a fourth treatment unit and a fifth treatment unit in the purifying device, wherein arrows indicate the direction of oil smoke entering the purifying device;

FIG. 12 is a partial view of area A of FIG. 8;

FIG. 13 is a partial view of area B of FIG. 8;

FIG. 14 is a schematic structural view of a third treatment unit in which a single third filter hole of a third filter plate is provided with a third connecting cable and a third tail fin;

FIG. 15 is a schematic structural view of a third connecting cable and a third tail wing of two adjacent third filter holes on a third filter plate in the third treatment unit;

FIG. 16 is a schematic structural view of a fourth treatment unit in which a single fourth filter hole of a fourth filter plate is provided with a fourth connecting cable and a fourth tail fin;

FIG. 17 is a schematic structural view of a fourth connecting cable and a fourth tail wing of two adjacent fourth filter holes on a fourth filter plate in the fourth treatment unit;

fig. 18 is a structural view of a floating tuyere, in which the number of the air outlets of one side wall of the fixed casing is one;

FIG. 19 is a structural view of a floating tuyere in which a plurality of air outlets are formed in one side wall of a fixed casing;

FIG. 20 is a block diagram of the floating shell of FIG. 18;

FIG. 21 is a block diagram of the stationary housing of FIG. 18;

FIG. 22 is an exploded view of the structure of FIG. 18;

fig. 23 is an internal view of the purification apparatus, in which arrows indicate the direction of the oil smoke entering the purification apparatus;

FIG. 24 is a partial view of area C of FIG. 23;

FIG. 25 is a block diagram of the top housing;

FIG. 26 is a block diagram of a combination panel on the inside;

FIG. 27 is a structural view of the cover;

FIG. 28 is a view of the structure of the top side panel;

FIG. 29 is a side view of the top side panel;

FIG. 30 is a schematic view of an inboard upper gusset;

FIG. 31 is a partial view taken in the area D of FIG. 30, showing the structure of a second mounting portion;

FIG. 32 is a view showing the construction of the outer middle plate;

figure 33 is a side view of the outer middle plate.

Detailed Description

Embodiments of the invention, examples of which are illustrated in the accompanying drawings, are described in detail below with reference to fig. 1-33, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., are used in an orientation or positional relationship indicated based on the drawings, it is merely for convenience of description and simplicity of description, and it is not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, is not to be considered as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention relates to a method for purifying oil fume, which comprises the following steps: the oil smoke enters an oil smoke channel of the purifying device, water is sprayed on the oil smoke to form aerosol, dry-wet separation is completed through multiple times of filtration, and condensation treatment is adopted in the dry-wet separation process.

The oil smoke forms a plurality of convoluted vortex flows in the oil smoke channel, and the oil smoke forming the vortex flows is sprayed with water to form aerosol. Further, water is sprayed to form fine water mist to be mixed with the oil smoke. Specifically, the water mist is water particles with the diameter smaller than 1000 microns, and the water mist and the oil smoke forming vortex are fully mixed to form aerosol with high relative humidity, so that non-methane particles in the oil smoke can be fully captured.

The flow speed of the oil smoke in the oil smoke channel is gradually reduced so as to prolong the filtering and adsorbing time of the oil smoke. The flow velocity increases at the outlet, accelerating the discharge. Specifically, the air inlet of the oil smoke channel is set to be smaller in area, the cross-sectional area of the middle of the oil smoke channel is gradually increased, and the discharge port of the oil smoke channel is set to be smaller in area.

In addition, a path from bottom to top is arranged in the oil smoke channel, specifically, an exhaust port of the oil smoke channel is arranged at the top of the purifying equipment, and the ascending path of the oil smoke is prolonged, so that the ascending of light people and the dripping of turbid people in the oil smoke are promoted.

Each filter element in the oil smoke channel has a self-cleaning function, and the filter elements are self-cleaned by utilizing the swing brought by the wind kinetic energy of the oil smoke. For example: the filter core drops adsorbed oil smoke granule through self wobbling mode, and the filter core sets up the fin, and under the drive of the pnematic energy of oil smoke, the fin swing, the fin drives the filter core swing, and the filter core swing makes adsorbed particulate matter drop to realize self-cleaning. For example: the filter element is characterized in that the filter holes of the filter element are internally provided with the swinging pieces, the swinging pieces are provided with the tail wings, the tail wings swing under the driving of the wind energy of the oil smoke, the tail wings drive the swinging pieces to swing, the swinging pieces collide and rub the inner walls of the filter holes to enable particles adsorbed in the filter holes to fall off, and therefore the self-cleaning of the filter element is achieved.

The filter holes in the filter element are arc-shaped to prolong the path of the adsorbed oil smoke particles, and meanwhile, the length of the swinging piece can be prolonged, so that the swinging piece can collide to make the adsorbed particles fall off.

The purification equipment used by the method comprises a first treatment unit, a second treatment unit, a third treatment unit, a fourth treatment unit and a fifth treatment unit, wherein the oil smoke passes through the first treatment unit, the second treatment unit, the third treatment unit, the fourth treatment unit and the fifth treatment unit in sequence. The bottom of the purifying device is provided with a water accumulation tank, and water in the purifying process flows into the water accumulation tank.

Referring to fig. 2 to 5, 11 and 23, the purification apparatus is provided with an upper chamber and a lower chamber, the upper chamber is disposed above the lower chamber, and moisture in the cooking fume gas is effectively separated through dry-wet separation. The first processing unit, the second processing unit and the third processing unit are arranged in the lower cabin, and the fourth processing unit and the fifth processing unit are arranged in the upper cabin. The clarification plant is provided with the equipment cabin, and the equipment cabin sets up in clarification plant's bottom, and the equipment cabin is provided with refrigerating system, water supply system and air compression system, and air compression system includes air compressor machine 407.

Referring to fig. 2, 6 and 7, the first processing unit includes an air inlet, a spraying assembly and a plurality of flow stabilizing pieces 103, the oil smoke enters the first processing unit from the air inlet, one side of the flow stabilizing piece 103 facing the air inlet is taken as a front side, the front side of the flow stabilizing piece 103 divides the oil smoke to the left and right sides, a rear area of the flow stabilizing piece 103 forms a vortex area 102, and the divided oil smoke flows form a convoluted vortex in the vortex area 102. The inner cavity of the first processing unit is regarded as an aerosol mixing bin 101, the spraying assembly is used for spraying water to a vortex region 102 and comprises a plurality of nozzles 104, and the air compression system enables the spraying assembly to spray water to form fine water mist, wherein the diameter of water particles in the fine water mist is smaller than 1000 microns. The fine water mist is fully mixed with the oil smoke in the vortex area 102 to form aerosol with high humidity, so that the oil smoke can be fully adsorbed in the subsequent treatment process, non-methane particles in the oil smoke can be conveniently and fully captured, and the oil smoke purification effect is better.

The flow stabilizer 103 is vertically arranged, and the flow stabilizer 103 comprises two flow guide side wings, wherein one flow guide side wing guides the oil smoke to the left side, and the other flow guide side wing guides the oil smoke to the right side. In some examples, the two flow guiding flanks form a V-shaped structure, for example, the flow stabilizer 103 is arranged as a V-shaped channel, the tip of the V-shaped structure faces the air inlet, and the vortex region 102 is located in the V-shaped region of the V-shaped structure. In some examples, the guiding wing is curved, specifically, the guiding wing is curved toward the rear side, for example, the flow stabilizer 103 is curved, the rear side of the flow stabilizer 103 has a fan-shaped region, for example, the flow stabilizer 103 is configured as a pillar, and the cross section of the pillar has a fan shape or a semicircle shape.

Referring to fig. 7, the flow stabilizers 103 are distributed in an array, and in order to promote oil smoke diversion, the flow stabilizers 103 are distributed in a staggered manner, specifically, two adjacent rows of flow stabilizers 103 are distributed in a staggered manner, so that more vortex regions 102 are formed, and oil smoke and water mist are fully mixed.

Referring to fig. 3, 8, 12 and 13, the second processing unit includes a plurality of net chains 201 and a plurality of second connecting cables 202, each net chain 201 is sequentially disposed to allow the oil smoke to sequentially pass through each net chain 201, and the net chains 201 serve as filter elements to perform filtering and adsorbing treatment on the oil smoke. The second processing unit further comprises a main support in which the net chains 201 are arranged side by side in sequence. The net chain 201 is made of stainless steel, the net chain 201 is used for adsorbing oil drop particles in oil smoke, and oil-water separation is achieved through layer-by-layer filtration of the net chains 201. The aerosol adheres to the net chain 201, and the temperature is reduced to form condensation which falls off and flows into the water collecting tank.

Referring to fig. 13, the second connecting cable 202 sequentially passes through the network chains 201, and a second tail wing 203 is provided at the tail end of the second connecting cable 202. When the oil smoke passes through the net chains 201, the wind kinetic energy of the oil smoke can make the net chains 201 swing, and at the same time, the second tail wing 203 can also swing, the second tail wing 203 drives the second connecting cables 202 to swing, and the second connecting cables 202 drive the net chains 201 to swing, so that the swing of the net chains 201 is strengthened. Further, the second tail 203 is sheet-shaped, and the sheet-shaped structure is easier to swing under the action of wind power. The swing net chain 201 enables the adsorbed particles to fall off, and self-cleaning of the net chain 201 is achieved. The adjacent net chains 201 collide with each other due to the swinging, so that the swinging of the net chains 201 can be enhanced, and the self-cleaning function of the net chains 201 is enhanced. In addition, because the net chain 201 is set to be multilayer, the filtering path is correspondingly prolonged, and the net chain 201 adsorbs layer by layer, so that the oil fume can be prevented from being wrapped by the falling particles.

Referring to fig. 12, the main support includes two longitudinal beams 204, and a plurality of transversal beams 205 for mounting each mesh chain 201 are disposed between the two longitudinal beams 204. The net chain 201 is mounted on the cross beam 205 through a plurality of collars 206, and each collar 206 is sleeved on the cross beam 205. Specifically, the upper portion of the net chain 201 is mounted on the wale 205 by a plurality of collars 206, and the wale 204 is provided with mounting holes for mounting the end portions of the wale 205.

Referring to fig. 8, the main support includes a plurality of vertical beams 207, the vertical beams 207 are vertically disposed for installing the vertical beams 204, and the vertical beams 207, the vertical beams 204, and the horizontal beams 205 form a frame of the main support. Further, the vertical support beam 204 is made of angle steel, and the vertical support beam 207 is made of angle steel.

Referring to fig. 4, 9, 10, 14, and 15, the third treatment unit includes a plurality of third filter plates 301, each of the third filter plates 301 is sequentially disposed so that the oil smoke sequentially passes through each of the third filter plates 301, and the fine aerosol is further attached to the third filter plates 301 to form a liquid water flow. The third filter plate 301 is provided with a plurality of third filter holes 302, and the inner walls of the third filter holes 302 can absorb the particles of the oil smoke. Specifically, the third filter holes 302 are distributed in an array on the third filter plate 301.

Referring to fig. 14 and 15, a third connecting cable 303 is arranged in the third filtering hole 302, a third tail wing 304 is arranged at the tail of the third connecting cable 303, the third connecting cable 303 is used as a swinging piece, the third tail wing 304 is swung by wind kinetic energy carried by oil smoke, the third tail wing 304 drives the third connecting cable 303 to swing in the third filtering hole 302, and the third connecting cable 303 collides, rubs and drops attachments in the third filtering hole 302, so that the third processing unit realizes a self-cleaning effect. Furthermore, the third tail 304 is sheet-shaped, so that the sheet-shaped structure is easier to swing under the action of wind power. In some examples, the third connecting cable 303 is designed as a bendable and swingable connecting rope; in some examples, the third connecting cable 303 is designed as a chain, and the collision of the chain with the inner wall of the third filter hole 302 is more likely to cause the attachments to fall off.

Referring to fig. 14, the path of the passage in the third filter hole 302 is arc-shaped, so that the path of the oil smoke in the third filter hole 302 is extended, and the adsorption effect of the third filter hole 302 on the oil smoke particles is enhanced. The length of the third connecting cable 303 in the arc-shaped third filtering hole 302 is correspondingly prolonged, and accordingly, the swinging of the third connecting cable 303 in the third filtering hole 302 is enhanced, and the self-cleaning effect is enhanced.

Referring to fig. 15, in the third filter plate 301, the heads of the third connecting cables 303 in two adjacent third filter holes 302 are connected, and two swinging third tail wings 304 drive one third connecting cable 303 to swing, so that the swing amplitude of the third connecting cable 303 is larger.

Referring to fig. 10, in the third treatment unit, the soot passes through the third filter plates 301 in sequence, and a flow path of the soot is formed between two adjacent third filter plates 301, and the flow directions of the soot in the flow paths at both ends are opposite to each other. Specifically, the left end of the first third filter plate 301 is an inlet of the flow passage, and the section of the second third filter plate 301 has an outlet of the flow passage. When the oil smoke positively flows through the third filter plate 301, the redundant oil smoke flows to the next layer of the third filter plate 301 along the flow path due to unbalanced pressure difference, so that the filtering resistance of the third filter plate 301 is reduced, and the purification effect of the third treatment unit is effectively improved. The flow trajectory of the oil smoke in the third processing unit is zigzag, so that the contact time between the oil smoke and the third filter plate 301 is increased, and the adsorption effect of the third filter plate 301 on the oil smoke is enhanced.

Referring to fig. 9, the third treatment unit comprises a plurality of third holders for mounting the third filter plate 301, the third holders comprising a third upper holder 305 and a third lower holder 306, the third upper holder 305 being provided with a third mounting groove for mounting the third filter plate 301, and the third lower holder 306 being provided with a third mounting groove for mounting the third filter plate 301. Specifically, the upper side of the third filter plate 301 is mounted in the third mounting groove of the third upper holder 305, and the lower side of the third filter plate 301 is mounted in the third mounting groove of the third lower holder 306.

Referring to fig. 5, 11, 16 and 17, the fourth processing unit includes a plurality of fourth filter plates 401, each fourth filter plate 401 is sequentially disposed to allow the oil smoke to sequentially pass through each fourth filter plate 401, the fourth filter plates 401 are disposed with a refrigerating pipe 405, the refrigerating pipe 405 is disposed at a side of the fourth filter plates 401 to reduce the odor of the oil smoke by refrigeration, and liquefy the gaseous substances in the oil smoke to more effectively adsorb and enhance the purifying effect. The finer aerosol is condensed on the fourth filter plate 401 through the refrigerating pipe 405 to remove moisture, so that the oil fume purification with the relative humidity of less than 30% is realized, and the odor concentration can be reduced.

The fourth filter plate 401 is provided with a plurality of fourth filter holes 402, the inner walls of the fourth filter holes 402 can absorb particles of oil smoke, and specifically, the fourth filter holes 402 are distributed on the fourth filter plate 401 in an array.

Referring to fig. 16 and 17, a fourth connecting cable 403 is arranged in the fourth filtering hole 402, a fourth tail wing 404 is arranged at the tail of the fourth connecting cable 403, the fourth connecting cable 404 is used as a swinging piece, the fourth tail wing 404 swings under the action of wind kinetic energy carried by oil smoke, the fourth tail wing 404 drives the fourth connecting cable 403 to swing in the fourth filtering hole 402, and the fourth connecting cable 403 collides, rubs and drops attachments in the fourth filtering hole 402, so that the fourth processing unit realizes a self-cleaning effect. Further, the fourth tail 404 is in the shape of a sheet, and the sheet structure is more easily swung under the action of wind power. In some examples, the fourth connecting cable 403 is designed as a bendable and swingable connecting rope; in some examples, fourth connecting cable 403 is designed as a chain, and the collision of the chain with the inner wall of fourth filter hole 402 is more likely to cause the attachments to fall off.

Referring to fig. 16, the path of the passage in the fourth filtering hole 402 is arc-shaped, so as to extend the path of the soot in the fourth filtering hole 402 and enhance the adsorption effect of the fourth filtering hole 402 on the soot particles. The length of the fourth connecting cable 403 in the arc-shaped fourth filtering hole 402 is correspondingly prolonged, and accordingly, the swinging of the fourth connecting cable 403 in the fourth filtering hole 402 is enhanced, and the self-cleaning effect is enhanced.

Referring to fig. 17, in the fourth filter plate 401, the heads of the fourth connecting cables 403 in two adjacent fourth filter holes 402 are connected, two swinging fourth tail wings 404 drive one fourth connecting cable 403 to swing, and the swing amplitude of the fourth connecting cable 403 is larger.

Referring to fig. 11, the fourth treatment unit is provided with fourth supports 406 for mounting the fourth filter plate 401, the fourth supports 406 being provided at the upper and lower ends of the fourth filter plate 401, respectively, and in particular, the cross-section of the fourth supports 406 is set to an angular shape.

Referring to fig. 11 and 23, the fifth processing unit includes a fifth filter plate 408, the fifth filter plate 408 is disposed above the fourth processing unit, and the fifth filter plate 408 filters PM2.5 solid particles in the soot.

Referring to fig. 11, the top of the purification apparatus is provided with a discharge unit, and the oil smoke purified by the fifth treatment unit is discharged from the discharge unit. Referring to fig. 18 to 22, the discharge unit includes a fixed housing 501 and a floating housing 504, the floating housing 504 is installed in the fixed housing 501 to be movable up and down, the purified oil smoke enters from the bottom of the fixed housing 501, the floating housing 504 floats up and down to change the size of the outlet air, and the discharge unit constitutes a floating air port. Specifically, the floating housing 504 comprises a floater 505 and a cap 506, the cap 506 is arranged on the top of the floater 505, the floater 505 is mounted on the fixed housing 501 in a manner of moving up and down, an air outlet is arranged on the side wall of the floater 505, and the air outlet on the side wall of the floater 505 can be blocked by the side wall of the fixed housing 501. When the discharge amount is large, the floating shell 504 is pushed up by wind power, the air outlet on the side wall of the floater 505 gradually moves upwards and is exposed at the side edge, and the wind is sent out from the air outlet on the side wall of the floater 505, so that the air output is increased. After the discharge is stopped, the floating housing 504 falls to close the discharge unit, which has the functions of rat and insect prevention and backflow prevention.

Referring to fig. 20 and 21, a guide rail 502 is provided on the inner wall of the fixed housing 501, and a guide groove 507 is provided on the side wall of the float 505 to be disposed and attached to the guide rail 502. The floating housing 504 is installed to float up and down through the arrangement of the guide groove 507 and the guide rail 502, so that the moving track of the floating housing 504 can be limited, the clamping is avoided, and the floating housing 504 can move up and down more smoothly. In some examples, it may alternatively be designed to: the inner wall of the stationary housing 501 is provided with a guide groove 507 and the side wall of the float 505 is provided with a guide rail 502.

Referring to fig. 22, float 505 includes two floating side plates 508, and the two floating side plates 508 are fixedly mounted, e.g., welded, to the underside of cap 506. The two floating side plates 508 are assembled to form a three-dimensional structure, such as a rectangular parallelepiped or a column structure, the joint of the two floating side plates 508 is bent inward, and the bent part is spliced to form the guide groove 507 of the side wall of the float 505. Specifically, the floating side plate 508 is provided with an air outlet. In some examples, the side surface formed by splicing the two floating side plates 508 can also be provided with an air outlet.

Referring to fig. 22, the fixed housing 501 includes two fixed side plates 503, and the two fixed housings 501 are assembled by bolts, screws, or welding. The joint of the two fixed side plates 503 is bent inward, and the bent parts are jointed to form a convex guide rail 502 on the inner wall of the fixed housing 501.

Referring to fig. 22, the cap 506 is provided with a visor 509, and an upper end wall of the fixed housing 501 is adapted to abut against the visor 509 to prevent the cap 506 from falling into the fixed housing 501.

The side wall of the fixed housing 501 is provided with an air outlet to increase the air output, and the air outlet is in a rectangular window shape. In some examples, referring to fig. 18, an air outlet is disposed on a side wall of the stationary housing 501. In some examples, referring to fig. 19, a plurality of air outlets are provided on one side wall of the stationary housing 501. In some examples, the side walls of the stationary housing 501 are provided with louvers.

Referring to fig. 1, 23 to 33, a cover body is arranged outside the purifying device, covers the purifying device to prevent dust, oil smoke and secret from leaking, and prevents the internal structure of the purifying device from being peeped and leaked. Referring to fig. 27, the cover body includes a plurality of outer middle plates 602, the outer middle plates 602 are disposed outside the purifying apparatus, two adjacent outer middle plates 602 are connected by welding, and a splicing gap between the two outer middle plates 602 is sealed by continuous welding, so as to prevent untreated oil smoke in the purifying apparatus from leaking. One of the outer middle plates 602 is provided with an air inlet through which oil smoke enters the purification apparatus, and the top of the outer middle plate 602 is mounted on the inner upper plate 601. In some examples, the cover includes four outer middle plates 602 forming a rectangular frame, and correspondingly, the number of the inner upper plates 601 is four.

Be provided with the inner panel subassembly in the clarification plant, refer to fig. 26 and fig. 30, the inner panel subassembly includes inboard composition board on, and inboard composition board includes a plurality of inboard scute on, and inboard top panel includes two inboard top panels 601, and each inboard top panel 601 sets up the lateral wall at clarification plant, and the tip of two inboard top panels 601 is the contained angle and connects, specifically, and the tip concatenation of two inboard top panels 601 constitutes the angle structure. In some examples, the two inner top panels 601 forming the inner top corner panel are joined to form a right angle structure, and accordingly, the inner top combination panel has a rectangular structure.

The inner plate assembly comprises inner side middle plates, each inner side middle plate is arranged below the inner side upper composition plate, each inner side middle plate is arranged on the side wall of the purifying equipment, and the inner plate assembly surrounds parts in the purifying equipment to form an inner cavity of the purifying equipment.

Referring to fig. 32 and 33, the inner side of the top of the outer middle plate 602 is bent to form a first mounting portion 603, and referring to fig. 30 and 31, the top of the inner upper plate 601 is bent to form a second mounting portion 604 disposed and mounted on the first mounting portion 603. Further, the first mounting portion 603 is bent to form a first clamping portion protruding downward, the second mounting portion 604 is bent to form a second groove portion configured and mounted with the first clamping portion, specifically, the first mounting portion 603 is bent to form a U-shaped structure to form the first clamping portion, the second mounting portion 604 is bent to form a U-shaped structure to form the second groove portion, and the U-shaped structure of the first mounting portion 603 is disposed in the U-shaped structure of the second mounting portion 604.

Referring to fig. 1 and 23, the top of the purification apparatus is provided with a top case, and referring to fig. 25 and 28, the top case includes a plurality of top side plates 605. Further, the upper portion of the top side plate 605 is provided with an upper bending portion 606, and the upper bending portion 606 of each top side plate 605 is spliced to form a top plate of the purification apparatus, specifically, the top side plate 605 is made of an aluminum plate and is easy to bend. After the splicing, the inner cavity of the top shell is communicated with the inner cavity of the purifying equipment, and a discharge port is formed at the top of the top shell and used for installing a discharge unit and discharging oil smoke processed by the purifying equipment.

Referring to fig. 29, a third mounting portion for mounting the cover is provided on the inner side of the bottom of the top side plate 605. Specifically, the third mounting portion includes a third supporting portion 607, and an upper side of the first mounting portion 603 abuts against the third supporting portion 607. Further, the inner side edge of the third supporting portion 607 is bent downward to form a third bent portion 608, specifically, the third bent portion 608 abuts against the inner edge of the first mounting portion 603 or the inner edge of the second mounting portion 604, so as to position the top housing, and at the same time, the top housing is fixed by the elastic action of the plate.

In the description herein, references to the terms "one embodiment," "some examples," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like, if any, 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 invention. 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.

While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A method for purifying oil fume is characterized in that: the oil smoke enters an oil smoke channel of the purifying device, water is sprayed on the oil smoke to form aerosol, dry-wet separation is completed through multiple times of filtration, and condensation treatment is adopted in the dry-wet separation process.

2. The method of purifying lampblack according to claim 1, characterized in that: the oil smoke forms a plurality of convoluted vortex flows in the oil smoke channel, and the oil smoke forming the vortex flows is sprayed with water to form aerosol.

3. A method of purifying cooking fumes according to claim 1 or 2, characterized in that: spraying water to form fine water mist to be mixed with the oil smoke.

4. The method of purifying lampblack according to claim 1, characterized in that: the flow speed of the oil smoke in the oil smoke channel is gradually reduced, and the flow speed at the outlet is increased.

5. The method of purifying lampblack according to claim 1, characterized in that: each filter element in the oil smoke channel has a self-cleaning function.

6. The method of purifying lampblack according to claim 5, characterized in that: the filter core drops adsorbed oil smoke granule through self wobbling mode, and the filter core sets up the fin, and under the drive of the pnematic energy of oil smoke, the fin swing, the fin drives the filter core swing.

7. The method of purifying lampblack according to claim 5, characterized in that: the filter element is provided with a swinging piece in the filter hole, the swinging piece is provided with a tail wing, and the tail wing swings under the drive of the wind energy of the oil smoke, so that the tail wing drives the swinging piece to swing.

8. The method of purifying lampblack according to claim 7, wherein: the filtering holes in the filter element are arranged into an arc shape so as to prolong the path of absorbing the oil smoke particles.

9. The method of purifying lampblack according to claim 1, characterized in that: a path from bottom to top is arranged in the oil fume channel.