CN216171058U - Waste gas collecting and filtering device - Google Patents

Waste gas collecting and filtering device Download PDF

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Publication number
CN216171058U
CN216171058U CN202122778395.6U CN202122778395U CN216171058U CN 216171058 U CN216171058 U CN 216171058U CN 202122778395 U CN202122778395 U CN 202122778395U CN 216171058 U CN216171058 U CN 216171058U
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filtering
filter
space
air
air flow
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王成林
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Huize Nanjing Environmental Protection Technology Co ltd
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Huize Nanjing Environmental Protection Technology Co ltd
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Abstract

The utility model relates to a waste gas collecting and filtering device which comprises a cover body, a partition and a filtering assembly, wherein a working space and a filtering space are arranged in the cover body, the working space is arranged above the filtering space, a first gas inlet and a first gas outlet are arranged on the cover body, the first gas inlet is communicated with the working space, and the first gas outlet is communicated with the filtering space; the separator is arranged between the working space and the filtering space, and a plurality of vent holes are formed in the separator; the filtering component comprises a first filtering material and a second filtering material, the first filtering material and the bottom of the filtering space are arranged at a preset interval, and the second filtering material is arranged in the first air outlet or at the front end of the first air outlet. In the waste gas collecting and filtering device, the first filter material can carry out primary filtration on the gas flow, and the primary filtration can remove heavier particulate matters in the gas flow; the second filter material can carry out secondary filtration to the air current, and the particulate matter that the quality is lighter in the air current can be cleared away in the secondary filtration.

Description

Waste gas collecting and filtering device
Technical Field
The utility model relates to the technical field of waste gas collection and filtration, in particular to a waste gas collection and filtration device.
Background
Spraying factory and panel cutting factory can produce a large amount of waste gases that contain liquid granule or solid particle at the operation in-process, at present, are used for collecting this type to contain the waste gas collection device of particulate matter, mainly through setting up the grid in workspace's below, set up one deck filter media on the lower surface of grid for filter the particulate matter in the waste gas. However, this type of exhaust gas collection device has a problem: the mesh of filter media will be in the shorter time by the shutoff of particulate matter, on the one hand, leads to filtration inefficiency, and on the other hand, needs frequently to change the filter screen, leads to the exhaust-gas treatment cost to increase.
SUMMERY OF THE UTILITY MODEL
Based on this, there is a need to provide a new exhaust gas collecting device to solve the above problems.
An exhaust collection and filtration device comprising:
the air purifier comprises a cover body, a first air inlet, a first air outlet and a second air inlet, wherein a working space and a filtering space are arranged in the cover body, the working space is arranged above the filtering space, the cover body is provided with the first air inlet and the first air outlet, the first air inlet is communicated with the working space, and the first air outlet is communicated with the filtering space;
a partition disposed between the working space and the filtering space, the partition having a plurality of vent holes disposed thereon; and
and the filtering assembly comprises a first filtering material and a second filtering material, the first filtering material and the bottom of the filtering space are arranged at intervals of a preset distance, and the second filtering material is arranged in the first air outlet or at the front end of the first air outlet.
In one embodiment, the cover is further provided with a second air inlet, and the second air inlet is communicated with the working space.
In one embodiment, the cover is further provided with a second air outlet, and the second air outlet is communicated with the working space.
In one embodiment, the first air outlet is arranged symmetrically to the first air inlet, and the second air outlet is arranged symmetrically to the second air inlet.
In one embodiment, the filter assembly further includes a third filter material, and the third filter material is disposed in the second air outlet or at a front end of the second air outlet.
In one embodiment, the filter assembly is a dry filter or a wet filter.
In one embodiment, the dry filter is selected from the group consisting of: felt, sponge, activated carbon and microporous filter membrane.
In one embodiment, the wet filter is a liquid surface or a porous material having a liquid adsorbed thereon.
In one embodiment, an air guide assembly is disposed within the filtering space.
In one embodiment, a support assembly is disposed in the filtering space, and the first filter material is disposed on the support assembly.
In the above exhaust gas collecting and filtering device, the filtering assembly comprises a first filtering material and a second filtering material, the first filtering material is arranged at a predetermined distance from the bottom of the filtering space, and can perform primary filtering on the first air flow and the second air flow, and the primary filtering can remove heavier particulate matters in the first air flow and the second air flow; the second filter material is arranged in the first air outlet or at the front end of the first air outlet, and can perform secondary filtration on the first air flow or the second air flow, and the secondary filtration can remove lighter particulate matters in the first air flow or the second air flow.
Drawings
FIG. 1 is a schematic view of an embodiment of an exhaust collection and filtration device;
FIG. 2 is a schematic view of another embodiment of an exhaust gas collection and filtration device;
FIG. 3 is a schematic view of another embodiment of an exhaust gas collection and filtration device;
FIG. 4 is a schematic view of another embodiment of an exhaust gas collection and filtration device;
FIG. 5 is a schematic view of another embodiment of an exhaust collection and filtration device;
FIG. 6 is a schematic view of another embodiment of an exhaust gas collection and filtration device;
FIG. 7 is a schematic perspective view of the exhaust gas collection and filtration device shown in FIG. 1;
fig. 8 is a schematic perspective view of the exhaust gas collecting and filtering device shown in fig. 2.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention can be embodied in many different forms than those herein described and many modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" or "in communication with" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper", "lower", "vertical", "horizontal", "left", "right" and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 and 7, an embodiment of an exhaust gas collecting and filtering apparatus includes a housing 10, a partition 20, and a filtering assembly 30.
The mask body 10 is provided with a top surface 15 and a plurality of side surfaces, a cavity is arranged in the mask body 10, a working space R1 is arranged on the upper side of the cavity, a filtering space R2 is arranged on the lower side of the cavity, a first air inlet 16-1 and a first air outlet 17-1 are arranged on the mask body 10, the first air inlet 16-1 is communicated with the working space R1, and the first air outlet 17-1 is communicated with the filtering space R2.
In the present embodiment, the cover 10 has a hollow rectangular parallelepiped shape, and the side surfaces thereof include a first side surface 11, a second side surface 12, a third side surface 13, and a fourth side surface 14 connected end to end, and the top surface 15 is fixedly connected to the upper edges of the first side surface 11, the second side surface 12, the third side surface 13, and the fourth side surface 14.
It should be understood that other shapes of the cover, such as: a square, hemispherical, or irregularly shaped mask body may also be used as the mask body 10 of the present invention.
The work space R1 is provided in the cavity of the cover 10, and serves as a space above the cavity for accommodating a workpiece and performing work on the workpiece.
The filtering space R2 is provided in the cavity of the housing 10, and serves as a filter for filtering particulate matter generated during operation of the workpiece by the lower side of the cavity. In the present embodiment, the filter space R2 has a rectangular parallelepiped shape.
In another embodiment, referring to fig. 4, the bottom of the filtering space R2 is provided with a V-shaped groove having a first inclined surface and a second inclined surface, and the V-shaped groove is provided at the bottom of the filtering space R2, so that on one hand, when the first filtering material 31 is provided at the bottom of the filtering space R2, the surface area of the first filtering material 31 can be increased, thereby improving the filtering efficiency of the primary filtering. On the other hand, the first inclined surface can change the moving direction of the first air flow A1, the second inclined surface can change the moving direction of the second air flow A2, so that the first air flow A1 flows out from the second air outlet 17-2, the second air flow A2 flows out from the first air outlet 17-1, in the process, the first air flow A1 and the second air flow A2 are mutually staggered in the filtering space R2, the speed of the first air flow A1 and the speed of the second air flow A2 are reduced in the staggering process, and a part of heavier particulate matters are settled on the surface of the first filtering material 31 due to the reduction of kinetic energy, and the filtering efficiency of the first-stage filtering is improved.
In another embodiment, referring to fig. 5, a wind guide assembly 40 is disposed in the filtering space R2 for changing the directions of the first air flow a1 and the second air flow a 2.
Specifically, the air guiding assembly 40 includes a first air guiding plate 41 disposed obliquely, the first air guiding plate 41 is disposed on a flowing path of the first air flow a1, a plurality of air guiding plates are disposed on the first air guiding plate 41, when the first air flow a1 contacts the first air guiding plate 41, the air guiding plates can deflect the direction of the first air flow a1, and during the deflection process, a part of the heavier particulate matter can be adsorbed by the air guiding plates. Thereby helping to reduce the particle content in the first gas stream a 1.
Further, the air guiding assembly 40 further includes a second air guiding plate 42 disposed obliquely, the second air guiding plate 42 is disposed on a flowing path of the second air flow a2, the second air guiding plate 42 is provided with a plurality of air guiding sheets, when the second air flow a2 contacts the second air guiding plate 42, the air guiding sheets can deflect the direction of the second air flow a2, and during the deflection process, a part of the heavier particulate matter can be adsorbed by the air guiding sheets. Thereby helping to reduce the particle content in the second gas stream a 2.
Furthermore, the angles of the air guiding sheets on the first air guiding plate 41 and the second air guiding plate 42 can be adjusted, and by adjusting the angles of the air guiding sheets, a larger contact area between each air guiding sheet and the first air flow a1 and the second air flow a2 can be ensured, so that particulate matters in the first air flow a1 and the second air flow a2 are adsorbed by the air guiding sheets, and the content of particles in the first air flow a1 and the second air flow a2 is reduced.
Preferably, the first air deflector 41 and the second air deflector 42 are disposed in an inverted-splayed manner, which is favorable for further reducing the particle content in the first air flow a1 and the second air flow a 2.
In another embodiment, as shown in fig. 6, a support member 50 is further disposed in the filtering space R2 for supporting the first filter 31.
Specifically, the support assembly 50 includes a first support frame 51, the first support frame 51 is inclined downward at a predetermined angle and is disposed on a flow path of the first air flow a1, when the first air flow a1 collides with the first filter material 31 disposed on the first support frame 51, the direction of the first air flow a1 changes and moves downward along the surface of the first filter material 31, and then enters the lower portion of the first support frame 51, in this process, the contact area between the first air flow a1 and the first filter material 31 is greatly increased, thereby greatly improving the primary filtration efficiency.
Further, the support assembly 50 further includes a second support frame 52, the second support frame 52 is inclined downward at a predetermined angle and is disposed on a flow path of the second air flow a2, when the second air flow a2 collides with the first filter material 31 disposed on the second support frame 52, a direction of the second air flow a2 changes and moves downward along a surface of the first filter material 31, and then enters a position below the second support frame 52 through a gap between the first support frame 51 and the second support frame 52, in this process, a contact area between the second air flow a2 and the first filter material 31 is greatly increased, thereby greatly improving the primary filtering efficiency.
And a first air inlet 16-1 provided at an upper side of the enclosure 10 and communicating with the working space R1 so that fresh air may enter the working space R1 through the first air inlet 16-1 to form a first air flow a1 within the working space R1. In the present embodiment, the first air inlet 16-1 is provided on the first side surface 11.
In another embodiment, referring to FIG. 3, the first air inlet 16-1 is disposed on the top surface 15.
In another embodiment, referring to FIG. 2, the cover 10 is further provided with a second air inlet 16-2.
Specifically, the second air inlet 16-2 is arranged on the third side 13, the second air inlet 16-2 is communicated with the working space R1, and by arranging the second air inlet 16-2, fresh air can enter the working space R1 through the second air inlet 16-2, and a second air flow a2 is formed in the working space R1, so that dead air flow is prevented from being generated in the working space R1, and the reduction of the content of particulate matters in the working space R1 is facilitated.
Preferably, the second air inlet 16-2 is disposed symmetrically to the first air inlet 16-1, which enables a more balanced first air flow A1 and second air flow A2 to be generated in the working space R1, which helps to further reduce the content of particulate matter in the working space R1.
It should be understood that the number of the air inlets may be three, four or more, and the air inlets may be disposed on the top surface 15 or the side surfaces, or may be disposed on both the top surface 15 and the side surfaces.
And a first air outlet 17-1 provided at a lower side of the housing 10 and communicating with the filtering space R2 so that the first air flow a1 or the second air flow a2 can flow out of the filtering space R2 through the first air outlet 17-1.
In this embodiment, the first air outlet 17-1 is disposed at the lower side of the first side surface 11, such that the first air outlet 17-1 and the first air inlet 16-1 are disposed at the same side surface of the cover 10.
In another embodiment, referring to fig. 2, a second air outlet 17-2 communicated with the filtering space R2 is further disposed at the lower side of the third side 13, so that the third side 13 is simultaneously provided with the second air inlet 16-2 and the second air outlet 17-2, and the arrangement enables the first air flow a1 and the second air flow a2 to form two tangential air flows in the working space R1 and the filtering space R2, which is helpful for reducing the content of particles in the working space R1 and improving the primary filtering efficiency of particulate matter.
The partition 20 is provided between the working space R1 and the filtering space R2, and partitions the working space R1 and the filtering space R2 into two relatively independent spaces.
Specifically, the partition 20 is made of a hard material so that it can withstand pressure generated by a workpiece, working equipment, and a worker, and a plurality of vent holes 201 are provided in the partition 20 so that the first and second air flows a1 and a2 can enter the filtering space R2 from the working space R1 through the vent holes 201.
Alternatively, materials for preparing the separator 20 include, but are not limited to: metal, stone, wood, engineering plastics and concrete.
Optionally, the shape of the vent 201 includes, but is not limited to: rectangular, square, diamond, circular, oval, or other irregular shapes.
The filter assembly 30 is disposed in the filtering space R2, and the filter assembly 30 includes a first filter 31 and a second filter 32 for filtering particulate matters in the first air flow a1 and the second air flow a 2.
Specifically, the first filter 31 is disposed at a predetermined distance from the bottom of the filtering space R2, the predetermined distance may be greater than zero or equal to zero, and the first filter 31 is used for filtering heavier particulate matters in the first air flow a1 and the second air flow a 2. When the first air flow a1 and the second air flow a2 enter the filtering space R2 through the vent 201, the first air flow a1 and the second air flow a2 have downward velocity components, so that the first air flow a1 and the second air flow a2 can directly collide with the surface of the first filter 31, and during the collision, heavier particles in the first air flow a1 and the second air flow a2 can be directly adsorbed by the first filter 31, thereby greatly reducing the content of particulate matters in the first air flow a1 and the second air flow a2, and realizing a primary filtering effect.
In the embodiment shown in fig. 1 to 4, the first filter 31 is disposed at the bottom of the filtering space R2, and in this case, the predetermined distance between the first filter 31 and the bottom of the filtering space R2 is zero.
In the embodiment shown in fig. 6, the supporting member 50 is suspended in the filtering space R2, and the first filtering material is fixedly disposed on the supporting member 50, at this time, the predetermined distance between the first filtering material 31 and the bottom of the filtering space R2 is greater than zero.
In this embodiment, the particulate matter in the first and second gas streams a1 and a2 is dry filtered.
In this case, the first filter medium 31 is a dry filter medium, and the first filter medium 31 may include, but is not limited to: felt, sponge, active carbon and microporous filter membrane.
It will be appreciated that when dry filtering particulate matter from the exhaust gas is used, the bottom of the filtering space R2 may act directly as the first filter 31, preferably the filtering space R2 having a rougher bottom.
In another embodiment, the particulate matter in the first and second gas streams a1 and a2 is wet filtered. In this case, the first filter medium 31 is a wet filter medium, and the first filter medium 31 may be a liquid surface or a porous material having liquid adsorbed thereon.
Optionally, the liquid is an aqueous solution.
Alternatively, porous materials include, but are not limited to: at least one of felt, sponge and ceramsite.
A second filter 32 for filtering lighter weight particulate matter in the first stream a1 or the second stream a 2.
Specifically, the second filter 32 is disposed in the first air outlet 17-1 or at the front end of the first air outlet 17-1, and when the first air flow a1 or the second air flow a2 collides with the surface of the first filter 31, the moving direction of the first air flow a1 or the second air flow a2 changes, and the first air flow a 351 passes through the second filter 32 and flows out of the filter space R2, in this process, the lighter particulate matters in the first air flow a1 or the second air flow a2 are adsorbed by the second filter 32, so that a secondary filtering effect is achieved.
Preferably, the second filter 32 is disposed in the filtering space R2 and spaced apart from the first air outlet 17-1 by a predetermined distance, which is beneficial to increase the surface area of the second filter 32, thereby improving the filtering efficiency of the secondary filtering.
In this embodiment, the particulate matter in the first and second gas streams a1 and a2 is dry filtered. In this case, the second filter 32 is a dry filter, and optionally, the second filter 32 includes, but is not limited to: felt, sponge, active carbon and microporous filter membrane.
In another embodiment, the particulate matter in the first and second gas streams a1 and a2 is wet filtered. In this case, the second filter medium 32 is a wet filter medium, and optionally, the second filter medium 32 is a spray mist or a porous material having liquid absorbed therein.
Optionally, the porous material is selected from: at least one of felt, sponge and ceramsite.
Optionally, the liquid is an aqueous solution.
Preferably, the liquid is dissolved with chemical materials, and the chemical materials can decompose odor gas molecules in the waste gas, thereby improving the filtering efficiency of the secondary filtering.
Preferably, the second filter 32 can be kept in a wet state by providing a shower device above the second filter 32.
In another embodiment, referring to fig. 2, the filter assembly 30 further includes a third filter 33, and the third filter 33 is disposed in the second air outlet 17-2 or at the front end of the second air outlet 17-2 for filtering the lighter particulate matters in the first air flow a1 or the second air flow a 2. When the first air flow a1 or the second air flow a2 collides with the surface of the first filter 31, the moving direction of the first air flow a1 or the second air flow a2 changes, and the first air flow a 3578 or the second air flow a2 passes through the third filter 33 and flows out of the filter space R2 from the second air outlet 17-2, and in the process, light-weight particulate matters in the first air flow a1 or the second air flow a2 are adsorbed by the third filter 33, so that a secondary filtering effect is realized.
Preferably, the third filter 33 is disposed in the filtering space R2 and spaced from the second air outlet 17-2 by a predetermined distance, which is beneficial to increase the surface area of the third filter 33, thereby improving the filtering efficiency of the secondary filtering.
In this embodiment, the particulate matter in the first and second gas streams a1 and a2 is dry filtered. In this case, the third filter medium 33 is a dry filter medium, and optionally, the third filter medium 33 includes, but is not limited to: felt, sponge, active carbon and microporous filter membrane.
In another embodiment, the particulate matter in the first and second gas streams a1 and a2 is wet filtered. In this case, the third filter medium 33 is a wet filter medium, and optionally, the third filter medium 33 is a spray mist or a porous material having liquid absorbed therein.
Optionally, the porous material is selected from: at least one of felt, sponge and ceramsite.
Optionally, the liquid is an aqueous solution.
Preferably, the liquid is dissolved with chemical materials, and the chemical materials can decompose odor gas molecules in the waste gas, thereby improving the filtering efficiency of the secondary filtering.
Preferably, the third filter medium 33 can be kept in a wet state by providing a shower device above the third filter medium 33.
In the above exhaust gas collecting and filtering device, the filtering assembly 30 includes the first filtering material 31 and the second filtering material 32, the first filtering material 31 is disposed at the bottom of the filtering space R2, and can perform primary filtering on the first air flow a1 and the second air flow a2, and the primary filtering can remove heavier particulate matters in the first air flow a1 and the second air flow a 2; the second filter material 32 is arranged in the first air outlet 17-1 or at the front end of the first air outlet 17-1, and can perform two-stage filtration on the first air flow A1 or the second air flow A2, and the two-stage filtration can remove lighter-weight particulate matters in the first air flow A1 or the second air flow A2.
The beneficial effects include:
(1) the waste gas can be filtered twice, and the filtering efficiency of particulate matters in the waste gas is greatly improved;
(2) through the primary filtration, the content of particulate matter in the exhaust gas is greatly reduced, so that the loss of the second filter 32 can be reduced, and the cost of the second filter 32 and the treatment cost of abandoning the second filter 32 are reduced.
Specific examples are as follows.
Example 1
Referring to fig. 1 and 7, the present embodiment provides an exhaust gas collecting and filtering apparatus, which includes a housing 10, a partition 20 and a filtering assembly 30. The mask body 10 comprises a top surface 15 and a plurality of side surfaces, a cavity is arranged in the mask body 10, a working space R1 is arranged on the upper side of the cavity, a filtering space R2 is arranged on the lower side of the cavity, a first air inlet 16-1 and a first air outlet 17-1 are arranged on the mask body 10, the first air inlet 16-1 is communicated with the working space R1, and the first air outlet 17-1 is communicated with the filtering space R2; the partition 20 is disposed between the working space R1 and the filtering space R2, and the partition 20 is provided with a plurality of vent holes 201; the filter assembly 30 includes a first filter 31 and a second filter 32, the first filter 31 is disposed at the bottom of the filtering space R2, and the second filter 32 is disposed at the front end of the first air outlet 17-1. In this embodiment, the cover 10 is a rectangular parallelepiped, the side surfaces of which are formed by fixedly connecting a first side surface 11, a second side surface 12, a third side surface 13 and a fourth side surface 14 connected end to end, the first air inlet 16-1 is disposed above the first side surface 11, the first air outlet 17-1 is disposed below the first side surface 11, the first filter material 31 is felt, and the second filter material 32 is activated carbon.
In the above exhaust gas collecting and filtering device, the filtering assembly 30 includes the first filtering material 31 and the second filtering material 32, the first filtering material 31 is disposed at the bottom of the filtering space R2, and can perform a first stage filtering on the first air flow a1, and the first stage filtering can remove heavier particulate matters in the first air flow a 1; the second filter material 32 is arranged in the first air outlet 17-1 or at the front end of the first air outlet 17-1, and can perform two-stage filtration on the first air flow A1, and the two-stage filtration can remove lighter-weight particulate matters in the first air flow A1.
Example 2
Referring to fig. 2 and 8, the exhaust gas collecting and filtering device of the present embodiment is similar to the exhaust gas collecting and filtering device of embodiment 1, except that: (1) a second air inlet 16-2 is arranged on the upper side of the third side 13, and the second air inlet 16-2 and the first air inlet 16-1 are symmetrically arranged; (2) a second air outlet 17-2 is arranged at the lower side of the third side surface 13, and the second air outlet 17-2 and the first air outlet 17-1 are symmetrically arranged; (3) the front end of the second air outlet 17-2 is provided with a third filter material 33, and the third filter material 33 is made of activated carbon.
According to the waste gas collecting and filtering device, the second air inlet 16-2 and the second air outlet 17-2 are arranged, so that the first airflow A1 and the second airflow A2 which are tangent to each other are generated in the working space R1, the content of particulate matters in the working space R1 is greatly reduced, and the first-stage filtering efficiency of the particulate matters is improved by arranging the third filter material 33.
Example 3
Referring to fig. 3, the exhaust gas collecting and filtering device of the present embodiment is similar to the exhaust gas collecting and filtering device of embodiment 2, except that: (1) the number of the first air inlets 16-1 is 1, and the first air inlets 16-1 are arranged on the top surface 15; (2) the first filter material 31 is a surface of liquid, and the liquid is water; (3) the second filter material 32 is a wetted ceramsite, and a spraying device is arranged above the second filter material 32; (4) the third filter medium 33 is a wetted ceramic particle, and a spraying device is disposed above the third filter medium 33.
Above-mentioned waste gas is collected and filter equipment adopts the wet process to filter the particulate matter in the waste gas, can reduce the peculiar smell of waste gas when cleaing away the waste gas granule.
Example 4
Referring to fig. 4, the exhaust gas collecting and filtering device of the present embodiment is similar to the exhaust gas collecting and filtering device of embodiment 3, except that: (1) a V-shaped groove is formed at the bottom of the filtering space R2; (2) the first filter material 31 is sponge; (3) a second filter 32 felt; (4) the third filter 33 is felt.
Above-mentioned exhaust gas is collected and filter equipment sets up V type groove through the bottom at filtration space R2, and on the one hand, V type groove can increase the surface area of first filter media 31 to improve the filterable filtration efficiency of one-level. On the other hand, the V-shaped grooves can change the moving directions of the first air flow a1 and the second air flow a2, so that the first air flow a1 flows out from the second air outlet 17-2, and the second air flow a2 flows out from the first air outlet 17-1, in the process, the first air flow a1 and the second air flow a2 are mutually staggered in the filtering space R2, the staggered process reduces the air flow speed, and a part of heavier particulate matters are settled on the surface of the first filtering material 31 due to the reduction of kinetic energy, which is beneficial to improving the filtering efficiency of the first-stage filtering.
Example 5
Referring to fig. 5, the exhaust gas collecting and filtering device of the present embodiment is similar to the exhaust gas collecting and filtering device of embodiment 4, except that: (1) the bottom of the filtering space R2 is a plane; (2) an air guide assembly 40 is arranged in the filtering space, and the air guide assembly 40 comprises a first air guide plate 41 and a second air guide plate 42 which are arranged in an inverted splayed shape.
The exhaust gas collecting and filtering device is beneficial to reducing the particle content in the first air flow A1 and the second air flow A2 by arranging the air guide assembly 40.
Example 6
Referring to fig. 6, the exhaust gas collecting and filtering device of the present embodiment is similar to the exhaust gas collecting and filtering device of embodiment 4, except that: (1) the bottom of the filtering empty space R2 is a plane; (2) a supporting component 50 is arranged in the filtering space, and the supporting component 50 comprises a first supporting frame 51 and a second supporting frame 52 which are arranged in an inverted splayed shape; (3) the first filter 31 is disposed on the upper surface of the support member 50.
Above-mentioned exhaust gas is collected and filter equipment through setting up supporting component 50, helps improving one-level filtration efficiency by a wide margin.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An exhaust gas collection and filtration device, comprising:
the air purifier comprises a cover body, a first air inlet, a first air outlet and a second air inlet, wherein a working space and a filtering space are arranged in the cover body, the working space is arranged above the filtering space, the cover body is provided with the first air inlet and the first air outlet, the first air inlet is communicated with the working space, and the first air outlet is communicated with the filtering space;
a partition disposed between the working space and the filtering space, the partition having a plurality of vent holes disposed thereon; and
and the filtering assembly comprises a first filtering material and a second filtering material, the first filtering material and the bottom of the filtering space are arranged at intervals of a preset distance, and the second filtering material is arranged in the first air outlet or at the front end of the first air outlet.
2. The exhaust gas collection and filtration device of claim 1, wherein a second air inlet is further provided on the housing, the second air inlet communicating with the workspace.
3. The exhaust gas collecting and filtering device according to claim 2, wherein a second air outlet is further provided on the cover body, and the second air outlet is communicated with the working space.
4. The exhaust gas collecting and filtering device according to claim 3, wherein the first outlet port is disposed symmetrically to the first inlet port, and the second outlet port is disposed symmetrically to the second inlet port.
5. The exhaust collection and filtration device of claim 4, wherein the filter assembly further comprises a third filter material disposed within or forward of the second air outlet.
6. The exhaust gas collection and filtration device of claim 5, wherein the filter element is a dry filter or a wet filter.
7. The exhaust collection and filtration device of claim 6, wherein the dry filter is selected from the group consisting of: felt, sponge, activated carbon and microporous filter membrane.
8. The exhaust gas collection and filtration device of claim 6 wherein the wet filter is a liquid surface or a porous material with liquid adsorbed thereon.
9. The exhaust gas collecting and filtering device according to any one of claims 1 to 8, wherein an air guide assembly is provided in the filtering space.
10. The exhaust gas collecting and filtering device according to claim 1, wherein a support member is disposed in the filtering space, and the first filter material is disposed on the support member.
CN202122778395.6U 2021-11-15 2021-11-15 Waste gas collecting and filtering device Active CN216171058U (en)

Priority Applications (1)

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CN202122778395.6U CN216171058U (en) 2021-11-15 2021-11-15 Waste gas collecting and filtering device

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