CN116531871A - Self-cleaning air filter - Google Patents
Self-cleaning air filter Download PDFInfo
- Publication number
- CN116531871A CN116531871A CN202310594095.3A CN202310594095A CN116531871A CN 116531871 A CN116531871 A CN 116531871A CN 202310594095 A CN202310594095 A CN 202310594095A CN 116531871 A CN116531871 A CN 116531871A
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- Prior art keywords
- filter
- air
- screw
- self
- isolation
- Prior art date
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- 238000004140 cleaning Methods 0.000 title claims abstract description 31
- 238000002347 injection Methods 0.000 claims abstract description 44
- 239000007924 injection Substances 0.000 claims abstract description 44
- 238000007664 blowing Methods 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 claims description 79
- 238000005192 partition Methods 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 abstract description 44
- 239000002245 particle Substances 0.000 abstract description 33
- 238000001914 filtration Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000000746 purification Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004887 air purification Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/682—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a self-cleaning air filter, which comprises a filter shell, wherein a baffle plate is arranged in the filter shell, and a filter element is arranged on the baffle plate; the air injection disk is in sealing connection with the circumferential inner wall of the filter element, and an air injection runner is arranged on the air injection disk; the screw rod and the screw pipe are provided with a connecting through hole communicated with the air jet flow channel through a screw pipe cavity; the back-blowing assembly comprises a back-blowing air pump; the driving assembly drives the screw pipe to move along the threads on the outer wall of the screw rod, so that the movable range of the air outlet end covers the filtering holes of the filtering piece. This self-cleaning formula air cleaner passes through drive assembly and drives the screwed pipe activity for when jet-propelled dish is the spiral motion with filter piece axial lead as the center, the blowback air pump is through connecting through-hole, screwed pipe lumen to jet-propelled runner gas transmission, because the filtration pore of filter piece is covered to the movable range of end of giving vent to anger, thereby has realized the comprehensive cleanness to the filter piece, thereby has improved the cleaning performance to the filter piece, has reduced the dust particle residual quantity on filter piece surface by a wide margin, and then is favorable to improving filtration efficiency.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to a self-cleaning air filter.
Background
An air filter is an air filter device which captures dust from gas and solid phases through the action of a porous filter material and allows the gas to be purified, and is generally used in clean workshops, near workshops, laboratories or clean rooms, or for dust prevention of electronic mechanical passing equipment. In the air filter, a filter element is an important part, and is usually a barrel-shaped filter bag or filter screen, and filter holes are densely distributed on the circumferential outer edge of the filter element so as to filter and collect dust particles in air and achieve the effect of purifying the air.
After the air filter is used for a long time, dust particles are attached to and accumulated on the surface of the filter element, and the filter holes are blocked, so that the air circulation is not smooth, the air purification efficiency is greatly reduced, and therefore, the air is usually blown into the filter element, and the dust particles on the surface of the filter element are blown off. Although the above manner can realize dredging of the filter element, as the filter holes are densely distributed on the surface of the filter element, the dust particle adhesion forces at different positions are different, so that dust particles on part of the filter holes are blown off and particles on the rest of the filter holes are difficult to be clear in the process of blowing into the filter element, and as the blowing continues, air which is introduced into the filter element is concentrated and discharged to the outside of the filter element from the filter holes corresponding to the blown dust particles, and cannot act on the filter holes blocked by other dust particles with stronger adhesion force, so that the cleaning effect on the filter element is reduced, and when the gas to be purified is continuously introduced, the number of the filter holes for purifying the gas on the filter element is small, and the air circulation rate and the purifying efficiency are further influenced; moreover, after the air is introduced into the filter element, the blown dust particles remain in the filter, and the blown dust particles are easy to mix into the dust-containing air along with the air introduced into the air filter, so that the dust particle concentration in the air is increased, the surface of the filter element is easy to be blocked, and the filter element needs to be cleaned frequently and regularly, so that the filtering efficiency is affected.
Accordingly, there is a need for an improvement over prior art air filters.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a self-cleaning air filter which ensures the cleaning effect on a filter element and improves the filtering and purifying efficiency.
In order to achieve the technical effects, the technical scheme of the invention is as follows: a self-cleaning air filter comprising:
the filter comprises a filter shell, wherein a baffle is arranged in the filter shell, a barrel-shaped filter piece is arranged on the baffle, filter holes are densely distributed on the peripheral outer edge of the filter piece, the inner wall of the filter piece is a cylindrical surface, the outer wall of the baffle, the outer wall of the filter piece and the inner wall of the filter shell are enclosed to form an air inlet cavity, the inner wall of the baffle, the inner wall of the filter piece and the inner wall of the filter shell are enclosed to form a purification cavity, an air inlet and an ash discharge port which are communicated with the air inlet cavity and an air outlet which is communicated with the purification cavity are arranged on the filter shell, and the ash discharge port is provided with an ash discharge valve;
the air injection disc is in sealing connection with the circumferential inner wall of the filter element, and an air injection channel with an air inlet end and an air outlet end respectively arranged on one end face and the circumferential outer edge of the air injection disc is arranged on the air injection disc;
the screw rod and the screw pipe are in threaded connection and coaxial with the filter element, the screw rod and the screw pipe are respectively connected with the filter shell and the air injection disk, the screw rod is provided with a connecting through hole extending along the axial direction of the screw rod, and the connecting through hole is communicated with the air injection channel through a pipe cavity of the screw pipe;
the back-blowing assembly comprises a back-blowing air pump communicated between the purification cavity and the connecting through hole;
the driving assembly drives the screw tube to move along the threads on the outer wall of the screw rod, so that the movable range of the air outlet end covers the filter hole of the filter element.
Preferably, in order to improve the filtering efficiency, the filtering element is provided with at least two filtering elements, which are distributed along a direction perpendicular to the axis of the filtering element.
Preferably, in order to facilitate batch cleaning of different filter elements in turn, the back-flushing assembly further comprises a back-flushing air outlet pipe communicated between the output end of the back-flushing air pump and the connecting through holes, and the back-flushing air outlet pipe is connected with a back-flushing valve and communicated with the screws in a one-to-one correspondence manner.
Preferably, in order to ensure that dust-free gas is introduced into the filter element during cleaning of the filter element, the exhaust opening is provided with an exhaust valve.
Preferably, in order to avoid that when a single filter is cleaned, blown dust particles are mixed into air entering an air inlet cavity, so that the blown dust particles are attached to the surfaces of other filters to influence the filtering efficiency, an isolation assembly corresponding to the filters one by one is further arranged in the air inlet cavity, the isolation assembly comprises two isolation plates moving along the direction perpendicular to the axis of the filters and opposite to the moving direction, the two isolation plates are respectively arranged at two sides of the filters and are connected with a moving assembly for driving the two isolation plates to move, the length directions of the two isolation plates are parallel to the axis of the filters, the moving paths of the two isolation plates are intersected, the two isolation plates are in clearance fit with the filters when intersected, and are enclosed with the filters to form an isolation channel with an annular cross section, and an isolation discharge pipe is further arranged on the filter shell and connected with isolation valves, and the pipe orifices at two ends of the isolation discharge pipe are respectively communicated with the outside and the isolation channel.
Preferably, in order to drive the two isolation plates to move along opposite directions, the moving assembly comprises a moving unit arranged on the filtering shell, and two connecting rods connected with the output end of the moving unit and hinged with the two isolation plates respectively, a guide rod extending along the direction perpendicular to the axial lead of the filtering piece is fixed in the air inlet cavity, and the isolation plates are in sliding fit with the guide rod.
Preferably, in order to ensure smooth movement of the output end of the moving unit, the output end of the moving unit is connected with a collar, and the collar is slidably sleeved outside the isolation discharge pipe.
Preferably, in order to ensure the action range of the air injection flow passage, the number of rotations of the air injection disk is reduced, and the cleaning efficiency is improved, the air injection flow passage comprises an air inlet flow passage arranged on one end surface of the air injection disk and an air outlet flow passage arranged on the circumferential outer edge of the air injection disk, and at least two air outlet flow passages are arranged.
Preferably, in order to drive the screw to move along the thread on the outer wall of the screw, the driving assembly comprises a driven wheel coaxial with the screw and a driving unit for driving the driven wheel to rotate around the axis of the driven wheel, a convex strip and a groove which are in sliding fit are arranged between the driven wheel and the screw, and the convex strip and the groove extend along the axis of the screw.
Preferably, in order to facilitate the air-jet disc moving inside the filter element, an air-permeable through hole is provided on the air-jet disc, and two ends of the air-permeable through hole extend to two end surfaces of the air-jet disc respectively.
In summary, compared with the prior art, the self-cleaning air filter provided by the invention has the advantages that the driving component drives the spiral tube to move, so that the air injection disc does spiral motion by taking the axial lead of the filter element as the center, and the back-blowing air pump transmits air to the air injection channel through the connecting through hole and the spiral tube cavity.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a cross-sectional view taken along the direction A-A of FIG. 3;
fig. 5 is an enlarged view of a portion a of fig. 4;
FIG. 6 is a B-B sectional view of FIG. 3;
FIG. 7 is a schematic view of a portion of the structure of FIG. 2;
FIG. 8 is an exploded view of FIG. 7;
FIG. 9 is an exploded schematic view of an isolation unit;
FIG. 10 is a schematic view of the connection of the filter, screw, coil and drive assembly;
FIG. 11 is an exploded view of FIG. 10;
FIG. 12 is a schematic structural view and an elevation view of the driven wheel;
FIG. 13 is a schematic view of the structure of a jet disk;
FIG. 14 is an exploded view of FIG. 13;
in the figure: 100. a filter housing; 101. an air inlet; 102. an ash discharge port; 103. an exhaust port; 104. an ash valve; 105. an exhaust valve; 106. a shell body; 107. a bottom plate; 108. a support leg; 109. a top plate; 200. a partition plate; 201. a mounting hole; 300. a filter; 301. filtering holes; 400. an air inlet cavity; 500. a purification chamber; 600. a jet disk; 601. an air-jet flow passage; 6011. an intake runner; 6012. a gas outlet flow passage; 602. a ventilation through hole; 700. a screw; 701. a connecting through hole; 800. a solenoid; 801. a convex strip; 900. a blowback assembly; 901. a back-blowing air pump; 902. back blowing the air outlet pipe; 903. a blowback valve; 904. back blowing the total air pipe; 110. a partition plate; 120. isolating the discharge pipe; 121. an isolation valve; 130. a moving assembly; 131. a mobile unit; 132. a connecting rod; 133. a collar; 140. a guide rod; 150. driven wheel; 151. a groove; 160. a driving unit; 161. a motor; 162. a driving wheel; 163. a drive belt; 164. a drive rack; 170. a top plate; 171. an air inlet through hole; 172. an air outlet upper groove; 173. an upper through hole; 180. a lower plate; 181. a blind inlet hole; 182. a gas outlet lower groove; 183. a lower through hole; 190. a bolt; 210. and (3) a nut.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1-14, the self-cleaning air filter of the present invention comprises:
the filter casing 100, the filter casing 100 is internally provided with a baffle 200, the baffle 200 is provided with a barrel-shaped filter 300, the circumferential outer edge of the filter 300 is densely provided with filter holes 301, the inner wall is a cylindrical surface, the outer walls of the baffle 200 and the filter 300 are enclosed with the inner wall of the filter casing 100 to form an air inlet cavity 400, the inner walls of the baffle 200 and the filter 300 are enclosed with the inner wall of the filter casing 100 to form a purification cavity 500, the filter casing 100 is provided with an air inlet 101 and an ash outlet 102 which are all communicated with the air inlet cavity 400, and an air outlet 103 which is communicated with the purification cavity 500, and the ash outlet 102 is provided with an ash outlet valve 104;
the air injection disk 600, the air injection disk 600 is connected with the circumferential inner wall of the filter 300 in a sealing way, and an air injection channel 601 with an air inlet end and an air outlet end respectively arranged on one end face and the circumferential outer edge of the air injection disk 600 is arranged on the air injection disk;
the screw 700 and the screw 800 are in threaded connection and coaxial with the filter 300, the screw 700 and the screw 800 are respectively connected with the filter shell 100 and the air injection disk 600, the screw 700 is provided with a connecting through hole 701 extending along the axial direction of the screw 700, and the connecting through hole 701 is communicated with the air injection channel 601 through the pipe cavity of the screw 800;
the back-flushing assembly 900, the back-flushing assembly 900 includes a back-flushing air pump 901 communicated between the purification chamber 500 and the connection through hole 701;
the driving assembly drives the screw 800 to move along the threads on the outer wall of the screw 700, so that the moving range of the air outlet end covers the filter holes 301 of the filter 300.
When the self-cleaning air filter is used, dust-containing air to be purified is introduced into the air inlet cavity 400 in the filter shell 100 through the air inlet 101, when the dust-containing air is in contact with the filter 300, the filter 300 filters and purifies the dust-containing air, so that the air enters the inner side of the filter 300, dust particles, called dust particles for short, are intercepted on the outer side of the filter 300, the purified air is discharged from the air outlet 103 after being introduced into the purifying cavity 500, part of the dust is dropped into the bottom in the air inlet cavity 400 after being intercepted, the dust discharge valve 104 is opened, and the dust particles dropped into the bottom of the air inlet cavity 400 can be discharged through the dust discharge port 102 at the bottom.
While part of dust particles adhere to the surface of the filter 300, the blocking area of the dust particles increases along with long-term operation, so that the air circulation is not smooth, and the air purification efficiency is affected, at this time, the back-blowing air pump 901 in the back-blowing assembly 900 is started, clean dust-free air is pumped from the inside of the purification cavity 500 and introduced into the connecting through holes 701 of the screw 700, clean air sequentially passes through the connecting through holes 701 and the tube cavity of the spiral tube 800 and then enters the air jet channel 601 of the air jet disc 600, and the clean air is ejected from the air jet channel 601 due to the sealed connection between the circumferential outer edge of the air jet disc 600 and the circumferential inner wall of the filter 300, and acts on the dust particles adhered to the surface of the filter 301 of the filter 300, so that the dust particles are blown down.
Moreover, the back-blowing air pump 901 continuously ventilates to the air jet channel 601, and the driving assembly operates, the spiral pipe 800 is driven to rotate along the spiral direction of the outer wall of the screw 700 and simultaneously axially move along the self axial lead, and then the air jet disc 600 fixedly connected with the spiral pipe 800 is driven to synchronously perform spiral motion, so that the air jet disc 600 rotates by taking the axial lead of the filter 300 as the central line and simultaneously axially moves along the axial lead, the movable range of the air outlet end of the air jet channel 601 can cover the filter holes 301 on the filter 300, the action range of the air jet channel 601 is enlarged, dust particles accumulated and attached on a plurality of filter holes 301 densely distributed on the circumferential outer edge of the filter 300 are blown down one by one through the air jet disc 600 in the synchronous action process of the back-blowing air pump 901 and the driving assembly, the filter 300 is prevented from being thoroughly cleaned, the cleaning effect is ensured, and the contact area between dust-containing gas and the filter 300 in the subsequent filtering and purifying process is further increased, and the purifying efficiency is improved.
In the present invention, the filter housing 100 is arranged in the vertical direction, and as shown in fig. 1 and 2, includes a top plate 109, a housing 106, a bottom plate 107, and a leg 108 which are fixedly connected in this order from top to bottom, wherein the housing 106 is a square tubular structure, the top plate 109, the housing 106, and the bottom plate 107 enclose an inner cavity of the filter housing 100, the air inlet 101 is arranged on one side of the housing 106, and the air outlet 103 and the ash discharge 102 are arranged on the other side of the housing 106 from top to bottom. In order to facilitate ash discharge, the top surface of the bottom plate 107 is inclined, and one end of the bottom plate is lower than the other end of the bottom plate, which is adjacent to the ash discharge opening 102, so that when dust particles fall onto the top surface of the bottom plate 107, the bottom plate can slide downwards along the inclined top surface and finally gather at the ash discharge opening 102, and after the ash discharge valve 104 is opened, dust on the bottom plate 107 is conveniently discharged.
The baffle 200 is horizontally arranged on the inner side of the shell 106, the circumferential outer edge of the baffle 200 is fixedly connected with the circumferential inner wall of the shell 106, and the baffle 200 is provided with a circular through hole-shaped mounting hole 201; the filter 300 is arranged along the vertical direction, the top of the filter 300 is fixedly provided with a turned-over edge, the filter 300 is hermetically penetrated into the inner side of the mounting hole 201, and the turned-over edge at the top of the filter 300 is fixedly connected with the partition board 200; in this way, the air inlet chamber 400 is formed by enclosing the outer walls of the partition board 200 and the filter 300 with the inner wall of the filter housing 100, and the purifying chamber 500 is formed by enclosing the inner walls of the partition board 200 and the filter 300 with the inner wall of the filter housing 100; the top of the screw 700 is fixed on the top of the top plate 109, and the bottom of the screw 700 is disposed in the screw 800 and is in threaded connection with the inner wall of the screw 800, so that the connection through hole 701 of the screw 700 is communicated with the lumen of the screw 800.
A further improvement is that the filter 300 is provided with at least two, distributed in a direction perpendicular to the axis of the filter 300.
As shown in fig. 2 and 4, in the present invention, three filter elements 300 are provided, and the filter elements 300 are equally spaced apart along the longitudinal direction of the separator 200, but other two or more filter elements may be provided. By increasing the number of filter elements 300, the overall contact area of the filter elements 300 with the air of the device is increased, i.e. the filtering area is enlarged, thereby avoiding the reduction of the filtering efficiency caused by too small filtering area.
Further improved is that the back-blowing assembly 900 further comprises a back-blowing air outlet pipe 902 communicated between the output end of the back-blowing air pump 901 and the connecting through hole 701, wherein the back-blowing air outlet pipe 902 is connected with a back-blowing valve 903 and is communicated with the screw 700 in a one-to-one correspondence manner; the exhaust port 103 is provided with an exhaust valve 105.
As shown in fig. 1, 2 and 4, a back-blowing assembly 900 is fixed above the top plate 109, the back-blowing assembly 900 includes three back-blowing air outlet pipes 902 which are correspondingly communicated with three screws 700 one by one, the back-blowing air outlet pipes 902 are connected with back-blowing valves 903, a horizontal back-blowing total air pipe 904 is fixed at the top, and the back-blowing total air pipe 904 is communicated with the output end of the back-blowing air pump 901.
After the structure is adopted, any one filter 300 in the three filters 300 can be cleaned independently, during operation, the back-blowing valve 903 on the back-blowing air outlet pipe 902 corresponding to the filter 300 to be cleaned is opened, the rest back-blowing valves 903 and the exhaust valve 105 are closed, air is introduced into the air inlet cavity 400 through the air inlet 101, the rest two filters 300 remove dust and filter the air, clean air is introduced into the purifying cavity 500 and is supplemented into the purifying cavity 500, meanwhile, the back-blowing air pump 901 pumps clean air in the purifying cavity 500, the clean air is conveyed into the connecting through holes 701 of the corresponding screw 700 of the filter 300 through the back-blowing main air pipe 904 and the back-blowing air outlet pipe 902, then dust particles blocked on the surface of the filter 301 of the filter 300 are blown off through the pipe cavity of the screw 800 and the air injection passage 601 of the air injection disk 600, the driving assembly is matched to drive the screw 800 and the air injection disk 600 to blow off the dust particles on the filter 300, the cleaning effect is ensured, and the condition that the near air in the purifying cavity 500 is too little or the dust particles are sucked into the filter 300 through the air outlet 103 when the back-blowing air pump operates, and the cleaning effect is avoided.
The further improvement is that the air inlet cavity 400 is further provided with isolation components corresponding to the filter elements 300 one by one, the isolation components comprise two isolation plates 110 moving along the direction perpendicular to the axial line of the filter elements 300 and opposite to the moving direction, the two isolation plates 110 are respectively arranged at two sides of the filter elements 300 and are connected with a moving component 130 for driving the two to move, the length directions of the two isolation plates 110 are parallel to the axial line of the filter elements 300, the moving paths of the two isolation plates 110 are intersected, when the two isolation plates 110 are intersected, the two isolation plates 110 are in clearance fit with the filter elements 300 and form an isolation channel with an annular cross section with the filter elements 300, the filter shell 100 is further provided with an isolation discharge pipe 120, the isolation discharge pipe 120 is connected with an isolation valve 121, and the pipe orifices at two ends of the isolation discharge pipe 120 are respectively communicated with the outside and the isolation channel.
As shown in fig. 2 and fig. 4 to 9, in the present invention, an isolation discharge pipe 120 penetrates through a bottom plate 107 in a sealing manner in the vertical direction and is fixedly connected with the bottom plate 107, and an isolation valve 121 is provided at a portion of the isolation discharge pipe 120 located below the bottom plate 107; in the isolation assembly, two isolation plates 110 are located below the isolation plate 200 and distributed on two sides of the filter element 300, and in order to reduce the occupied space for the motion of the isolation plates 110, the moving directions of the two isolation plates 110 are perpendicular to the axial line direction of the filter element 300 and the distribution direction of the three filter elements 300, namely, parallel to the width direction of the shell 106; the partition plate 110 is a curved plate having a top spaced apart from the partition plate 200 and a bottom at the same level as the top of the partition discharge pipe 120.
Before the filter 300 needs to be cleaned, the moving assembly 130 drives the two isolation plates 110 in the isolation assembly corresponding to the filter 300 to move close to each other, so that the two isolation plates 110 and the filter 300 enclose to form an isolation channel with an annular cross section, the isolation plates 110 are in clearance fit with the filter 300 at the moment, the top of the isolation channel is closed, the bottom of the isolation channel is communicated with the isolation discharge pipe 120, the back-blowing air pump 901 is started after the isolation valve 121 is opened, the driving assembly drives the air injection disk 600 to act, dust particles attached to the filter holes 301 of the filter 300 are blown off, the dust particles fall down, and the air passes through the isolation channel after the air passes through the filter holes 301 along with the increase of the air quantity passing through the filter 300, and then the dust particles are discharged to the outside through the isolation discharge pipe 120. By adopting the mode, on one hand, the air pressure balance in the air inlet cavity 400 is ensured, excessive air discharged into the air inlet cavity 400 from the filter holes 301 through the inner side of the filter 300 is avoided, and on the other hand, the filter 300 during cleaning is isolated, and the phenomenon that dust particles blown off from the filter 300 are mixed into air in the air inlet cavity 400 and attached to other filter 300 is avoided, so that the concentration of the air dust particles is increased and the dust particles accumulated on the other filter 300 are excessive, the air circulation is unsmooth, the cleaning efficiency is influenced, and the blown dust particles can be discharged into the outside through the isolation channel and the isolation discharge pipe 120; after the filter 300 is cleaned, the moving assembly 130 drives the two isolation plates 110 to be away from each other, and opens the exhaust valve 105 to close the isolation valve 121 on the corresponding isolation exhaust pipe 120 of the filter 300, so that the cleaned filter 300 can be put into use for filtering purified air.
Further improved is that the moving assembly 130 comprises a moving unit 131 arranged on the filter casing 100, two connecting rods 132 connected with the output end of the moving unit 131 and respectively hinged with the two isolation plates 110, a guide rod 140 extending along the direction perpendicular to the axial line of the filter 300 is fixed in the air inlet cavity 400, and the isolation plates 110 are in sliding fit with the guide rod 140; the output end of the moving unit 131 is connected with a collar 133, and the collar 133 is slidably sleeved outside the isolation discharge pipe 120.
As shown in fig. 7-9, in the isolation assembly, four guide rods 140 are provided, the four guide rods 140 are distributed in rectangular arrays and respectively penetrate through the positions corresponding to four corners of the isolation plate 110, two ends of each guide rod 140 are fixedly connected with inner walls at two sides of the shell 106, and two sides of the bottom end of the isolation plate 110 are hinged with connecting rods 132; the moving unit 131 is an electric push rod, the shell of the moving unit is fixed below the bottom plate 107, and the output end of the moving unit penetrates through the bottom plate 107 in a sealing manner and is hinged with one end, far away from the isolation plate 110, of the connecting rod 132; the isolating discharge pipe 120 is sleeved with a lantern ring 133 which is in sliding fit with the isolating discharge pipe, two sides of the lantern ring 133 are integrally connected with a convex shaft, and the end part of the convex shaft is connected with the connecting rod 132 and the output end of the moving unit 131.
After the structure is adopted, the guide rod 140 fixed in the shell body 106 is in sliding fit with the isolation plate 110, so that the moving direction of the shell body 106 is fixed, and the isolation plate 110 can be driven to move axially and stably along the guide rod 140 after the moving unit 131 is started; when the moving unit 131 is started, the electric push rod drives one end of the connecting rod 132 far away from the isolation plate 110 to move along the axial direction parallel to the isolation discharge pipe 120, so that the opening formed by the two connecting rods 132 is opened or tightened, and then the two isolation plates 110 are driven to move along the opposite direction, the output end of the electric push rod is connected with the lantern ring 133, and the lantern ring 133 is slidably sleeved outside the isolation discharge pipe 120, so that the stable movement of the output end of the electric push rod is ensured.
Further improvement is that the air jet flow channel 601 comprises an air inlet channel 6011 arranged at one end surface of the air jet disc 600 and an air outlet channel 6012 arranged on the circumferential outer edge of the air jet disc 600, wherein the air outlet channel 6012 is provided with at least two air outlet channels; the air injection disk 600 is provided with air-permeable through holes 602, and both ends of the air-permeable through holes 602 extend to both end surfaces of the air injection disk 600, respectively.
By adopting the design, the number of the air outlet channels 6012 is increased, and the number of the output ends of the air jet channels 601 is further increased, so that the air jet disc 600 moves synchronously along with the spiral tube 800, and the movable range of the output ends of the air jet channels 601 is ensured to cover the filter holes 301 on the filter 300; the ventilation holes 602 on the air injection disk 600 allow the space above and below the air injection disk 600 in the inner space of the filter 300 to be kept in a communicated state through the ventilation holes 602, so as to avoid the influence on the movement of the air injection disk 600 along the axial line direction of the filter 300 due to the isolation of the upper and lower parts of the air injection disk 600 caused by the sealing connection between the air injection disk 600 and the peripheral inner wall of the filter 300.
Specifically, as shown in fig. 13 and 14, the specific structure of the air injection disk 600 is that the air injection disk 600 is formed by sealing and attaching an upper disk 170 and a lower disk 180 which are fixedly connected by a bolt 190 and a nut 210, wherein the upper disk 170 is positioned above the lower disk 180 and is coaxial with the upper disk 180, the upper disk 170 is fixed at the bottom end of a screw pipe 800, an air inlet through hole 171 is arranged at the central position of the upper disk 170, an upper through hole 173 extending along the thickness direction of the upper disk 170 is further arranged on the upper disk 170, four air outlet upper grooves 172 which are distributed in an annular array with the axis of the upper disk 170 as a central line are arranged on the bottom surface of the upper disk 170, and two ends of the air outlet upper grooves 172 extend to the inner wall of the upper through hole 173 and the circumferential outer edge of the upper disk 170 respectively; the central part of the lower disc 180 is provided with an air inlet blind hole 181, the lower disc 180 is also provided with a lower through hole 183 extending along the thickness direction of the lower disc 180, the bottom surface of the lower disc 180 is provided with four air outlet lower grooves 182 which are distributed in an annular array by taking the axis of the lower disc as a central line, and two ends of the air outlet lower grooves 182 extend to the inner wall of the lower through hole 183 and the circumferential outer edge of the lower disc 180 respectively.
The upper through hole 173 and the lower through hole 183 are communicated with each other, and are combined to form an air inlet flow passage 6011 of the jet disc 600; the upper through holes 173 and the lower through holes 183 are in one-to-one correspondence and are communicated with each other, and the air-permeable through holes 602 of the air injection disk 600 are formed in combination; the four air outlet upper grooves 172 and the four air outlet lower grooves 182 are in one-to-one correspondence and the notches are opposite, so that the air outlet upper grooves 172 and the air outlet lower grooves 182 are combined to form an air outlet flow passage 6012.
Further improved is that the driving assembly comprises a driven wheel 150 and a driving unit 160, wherein the driven wheel 150 is coaxial with the screw 800, the driving unit drives the driven wheel 150 to rotate around the self axis, a convex strip 801 and a concave groove 151 are arranged between the driven wheel 150 and the screw 800 in a sliding fit mode, and the convex strip 801 and the concave groove 151 extend along the axis of the screw 800.
After the structure is adopted, the driven wheel 150 is driven to rotate around the axis line of the driven wheel 160, and the driven wheel 150 and the spiral tube 800 are provided with the grooves 151 and the convex strips 801 which are in sliding fit, so that the spiral tube 800 can synchronously rotate along with the driven wheel 150, meanwhile, the spiral tube 800 and the driven wheel 150 are in sliding fit, the sliding direction is consistent with the axial direction of the spiral tube 800, and in the action process of the driving unit 160, the spiral tube 800 is driven to move along the spiral direction of the threads of the outer wall of the screw 700.
As shown in fig. 10-12, two convex strips 801 are fixed on the peripheral edge of the spiral tube 800, the convex strips 801 extend along the axial direction parallel to the spiral tube 800, an assembly through hole is formed in the driven wheel 150, the driven wheel 150 can be sleeved outside the spiral tube 800, grooves 151 in one-to-one correspondence with the two convex strips 801 and in sliding fit with the convex strips 801 are formed in the assembly through hole, the grooves 151 are through grooves matched with the convex strips 801, when the driven wheel 150 rotates, the convex strips 801 are acted on through the inner walls of the grooves 151 to drive the spiral tube 800 to rotate synchronously, and the spiral tube 800 can slide relatively with the driven wheel 150 through the convex strips 801 and the grooves 151 in sliding fit.
The driving unit 160 comprises two strip-shaped driving frames 164 which are distributed side by side along the vertical direction, two ends of each driving frame 164 are fixed on the inner wall of the shell 106, a circular assembly through hole is formed in each driving frame 164, the inner wall of each assembly through hole is in sealing fit with the peripheral outer edge of the driven wheel 150, two convex plates which are in sealing fit with the two driving frames 164 are respectively arranged at two ends of the driven wheel 150, and the two driving frames 164 are positioned between the two convex plates so as to support the driven wheel 150 to rotate around the axis of the driven wheel; a motor 161 is fixed on one of the driving frames 164, and a driving wheel 162 positioned between the two driving frames 164 is fixedly connected with the single coaxial line of the output of the motor 161, and the driving wheel 162 is in transmission connection with the driven wheel 150 through a waist-shaped driving belt 163.
After the driving unit 160 adopts the above mode, the driven wheel 150 is supported by the two driving frames 164 to rotate around the axis line thereof, the motor 161 is started to drive the driving wheel 162 to rotate, and the driving wheel 162 acts on the driven wheel 150 through the driving belt 163, so that the driven wheel 150 can be driven to rotate between the two driving frames 164, the spiral tube 800 can be driven to rotate and move along the axis line direction thereof, and the jet disc 600 is driven to synchronously move.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (10)
1. A self-cleaning air filter comprising:
the filter comprises a filter shell (100), wherein a partition plate (200) is arranged in the filter shell (100), a barrel-shaped filter piece (300) is arranged on the partition plate (200), filter holes (301) are densely distributed on the circumferential outer edge of the filter piece (300), the inner wall of the filter piece is a cylindrical surface, the outer wall of the partition plate (200) and the inner wall of the filter shell (100) enclose to form an air inlet cavity (400), the inner wall of the partition plate (200) and the inner wall of the filter piece (300) enclose to form a purifying cavity (500), an air inlet (101) and an ash outlet (102) which are communicated with the air inlet cavity (400) are arranged on the filter shell (100), and an exhaust port (103) which is communicated with the purifying cavity (500), and the ash outlet (102) is provided with an ash discharge valve (104);
the air injection disc (600), the air injection disc (600) is connected with the circumferential inner wall of the filter element (300) in a sealing way, and an air injection channel (601) with an air inlet end and an air outlet end respectively arranged at one end face and the circumferential outer edge of the air injection disc (600) is arranged on the air injection disc;
the screw (700) and the screw (800) are in threaded connection and coaxial with the filter element (300), the screw (700) and the screw (800) are respectively connected with the filter shell (100) and the jet disc (600), the screw (700) is provided with a connecting through hole (701) extending along the axial direction of the screw, and the connecting through hole (701) is communicated with the jet flow channel (601) through the pipe cavity of the screw (800);
the back-flushing assembly (900), the back-flushing assembly (900) comprises a back-flushing air pump (901) communicated between the purifying cavity (500) and the connecting through hole (701);
the driving assembly drives the screw tube (800) to move along the threads on the outer wall of the screw rod (700), so that the moving range of the air outlet end covers the filter holes (301) of the filter element (300).
2. A self-cleaning air filter as claimed in claim 1, wherein: the filter element (300) is provided with at least two, and is distributed along the direction perpendicular to the axial line of the filter element (300).
3. A self-cleaning air filter as claimed in claim 2, wherein: the back-blowing assembly (900) further comprises a back-blowing air outlet pipe (902) communicated between the output end of the back-blowing air pump (901) and the connecting through hole (701), and the back-blowing air outlet pipe (902) is connected with back-blowing valves (903) and is communicated with the screw rods (700) in a one-to-one correspondence mode.
4. A self-cleaning air filter as claimed in claim 3, wherein: the exhaust port (103) is provided with an exhaust valve (105).
5. A self-cleaning air filter as claimed in claim 2, wherein: the utility model discloses a filter, including filter (300) and filter housing (100), inlet chamber (400) are interior still be provided with filter (300) one-to-one's isolation subassembly, isolation subassembly includes along perpendicular to filter (300) axial lead direction removes and two division boards (110) that the direction of movement is opposite, two division board (110) are located filter (300) both sides just are connected with the removal subassembly (130) that drive both removed, two the length direction of division board (110) is on a parallel with the axial lead of filter (300), two the travel path of division board (110) is crossing, two when the division board (110) crossing with filter (300) clearance fit and enclose with filter (300) and close and form the cross section and be annular isolation passageway, still be provided with on filter housing (100) and keep apart discharge pipe (120), keep apart discharge pipe (120) are connected with isolation valve (121), the mouth of pipe (120) both ends respectively with the external world with isolation passageway intercommunication.
6. A self-cleaning air filter as defined in claim 4, wherein: the movable assembly (130) comprises a movable unit (131) arranged on the filter shell (100), two connecting rods (132) connected with the output end of the movable unit (131) and respectively hinged with the two isolation plates (110), a guide rod (140) extending along the direction perpendicular to the axial lead of the filter element (300) is fixed in the air inlet cavity (400), and the isolation plates (110) are in sliding fit with the guide rod (140).
7. A self-cleaning air filter as defined in claim 5, wherein: the output end of the moving unit (131) is connected with a lantern ring (133), and the lantern ring (133) is sleeved outside the isolation discharge pipe (120) in a sliding way.
8. A self-cleaning air filter as claimed in claim 1, wherein: the air jet flow channel (601) comprises an air inlet flow channel (6011) arranged on one end face of the air jet disc (600) and an air outlet flow channel (6012) arranged on the circumferential outer edge of the air jet disc (600), and at least two air outlet flow channels (6012) are arranged.
9. A self-cleaning air filter as claimed in claim 1, wherein: the driving assembly comprises a driven wheel (150) and a driving unit (160), wherein the driven wheel (150) is coaxial with the screw tube (800), the driving unit drives the driven wheel (150) to rotate around the self axis, a convex strip (801) and a groove (151) which are in sliding fit are arranged between the driven wheel (150) and the screw tube (800), and the convex strip (801) and the groove (151) extend along the axis of the screw tube (800).
10. A self-cleaning air filter as claimed in claim 1, wherein: the air injection disk (600) is provided with an air ventilation through hole (602), and two ends of the air ventilation through hole (602) extend to two end faces of the air injection disk (600) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310594095.3A CN116531871A (en) | 2023-05-24 | 2023-05-24 | Self-cleaning air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310594095.3A CN116531871A (en) | 2023-05-24 | 2023-05-24 | Self-cleaning air filter |
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| Publication Number | Publication Date |
|---|---|
| CN116531871A true CN116531871A (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310594095.3A Pending CN116531871A (en) | 2023-05-24 | 2023-05-24 | Self-cleaning air filter |
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| Country | Link |
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| CN (1) | CN116531871A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116857284A (en) * | 2023-09-05 | 2023-10-10 | 无锡星微科技有限公司杭州分公司 | Positive pressure air pre-carrier gas floating guide rail and linear platform with guide rail |
-
2023
- 2023-05-24 CN CN202310594095.3A patent/CN116531871A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116857284A (en) * | 2023-09-05 | 2023-10-10 | 无锡星微科技有限公司杭州分公司 | Positive pressure air pre-carrier gas floating guide rail and linear platform with guide rail |
| CN116857284B (en) * | 2023-09-05 | 2023-12-12 | 无锡星微科技有限公司杭州分公司 | Positive pressure air pre-carrier gas floating guide rail and linear platform with guide rail |
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