CN116943362A - Air filtering device for oxygenerator and filtering method thereof - Google Patents
Air filtering device for oxygenerator and filtering method thereof Download PDFInfo
- Publication number
- CN116943362A CN116943362A CN202311212814.7A CN202311212814A CN116943362A CN 116943362 A CN116943362 A CN 116943362A CN 202311212814 A CN202311212814 A CN 202311212814A CN 116943362 A CN116943362 A CN 116943362A
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- fixed
- air
- filter element
- ring body
- disc
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Links
- 238000001914 filtration Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 29
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000001301 oxygen Substances 0.000 claims abstract description 23
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 23
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 33
- 241000234435 Lilium Species 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 30
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 239000004677 Nylon Substances 0.000 claims description 13
- 229920001778 nylon Polymers 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000002640 oxygen therapy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 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
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
-
- 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
-
- 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
-
- 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
- B01D46/681—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 scrapers, brushes or the like
-
- 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
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention belongs to the technical field of oxygenerators, and particularly discloses an air filtering device for an oxygenerator and a filtering method thereof. The oxygen filter comprises a fixed ring body, wherein an annular groove is formed in the bottom of the fixed ring body, a plurality of connecting rods are fixed at the bottom of the fixed ring body along the circumferential direction at equal intervals, a fixed disc is fixed between the bottoms of the connecting rods, an air flow reversing adjusting device is arranged on the outer side of the fixed disc, a clamping ring is connected in a rotating mode in the annular groove, a plurality of connecting rods are fixed at the bottom of the clamping ring along the circumferential direction at equal intervals, a cleaning device is arranged between the outer surfaces of the connecting rods, two groups of closing assemblies are arranged at the bottom of the fixed ring body, and an air inlet pipe is fixed at the top of the fixed ring body.
Description
Technical Field
The invention relates to the technical field of oxygenerators, in particular to an air filtering device for an oxygenerator and a filtering method thereof.
Background
Oxygenerator is a kind of machine for preparing oxygen, and its principle is to use air separation technology. The adsorption performance of the molecular sieve is adopted, the large-displacement oil-free compressor is used as power through a physical principle, nitrogen and oxygen in the air are separated, and finally high-concentration oxygen is obtained. The oxygen generator of this type can produce oxygen rapidly and has high oxygen concentration, and is suitable for oxygen therapy and oxygen health care of various people.
At present, when oxygen manufactured by an oxygenerator is conveyed, the oxygen is required to be filtered, most of the existing filtering modes are filtered through a filter element, but dust in the filtered oxygen can be attached to a filtering surface of the filter element for a long time, so that a filtering hole is blocked, the oxygen circulation rate is influenced, and meanwhile, the filtering effect is reduced, so that people are required to frequently replace the filter element.
Disclosure of Invention
The invention aims to provide an air filtering device and a filtering method for an oxygenerator, when a filter element is used for filtering oxygen, the filtering surface inside the filter element is cleaned by changing the airflow direction and opening and closing of an air outlet, so that the service life and the filtering performance of the filter element are prolonged.
In order to achieve the above purpose, the invention adopts the following technical scheme: an air filtering device for an oxygenerator comprises a fixed ring body, wherein an annular groove is formed in the bottom of the fixed ring body, a plurality of connecting rods are fixed at the bottom of the fixed ring body along the circumferential direction at equal intervals, a fixed disc is fixed between the bottoms of the connecting rods, an air flow reversing and adjusting device is arranged on the outer side of the fixed disc, and a clamping ring is connected in the annular groove in a rotating mode;
the bottom of joint ring is fixed with a plurality of connecting rods along circumferencial direction equidistance, and is a plurality of be provided with cleaning device between the surface of connecting rod, the bottom of solid fixed ring body is provided with two sets of closure assemblies, the top of solid fixed ring body is fixed with the intake pipe.
Preferably, the air flow reversing adjusting device comprises an adjusting plate, an installing groove is formed in the top of the adjusting plate, the fixing plate is clamped in the installing groove, a buffer cavity is formed in the adjusting plate, a plurality of first air outlets are formed in the inner top surface of the buffer cavity along the circumferential direction, the first air outlets are formed in the inner top surface of the buffer cavity and close to the inner edge at equal intervals, a plurality of second air outlets are formed in the inner bottom surface of the installing groove and the top of the fixing plate at equal intervals in a staggered mode, and a plurality of first air outlets are formed in the bottom of the clamping ring and the top of the fixing ring body at equal intervals in a staggered mode.
Preferably, the closing component comprises a plurality of lily sealing plates, a plurality of second air outlets are formed in the inner top surface of the buffer cavity, which is close to the outer side edge in the circumferential direction, at equal intervals, the lily sealing plates are connected between the top of the adjusting disc and the bottom of the fixed ring body in a rotating mode through spring hinges at equal intervals, a fixed cylinder is fixed between the top of the adjusting disc and the bottom of the fixed ring body, and a plurality of side openings are formed in the outer surface of the fixed cylinder, which is close to the outer side edge in the circumferential direction.
Preferably, the plurality of lily sealing plates are divided into two groups, wherein one group of lily sealing plates is positioned at the inner side of the fixed cylinder, the other group of lily sealing plates is positioned at the top edge of the adjusting disc, and the two groups of lily sealing plates are inclined and mutually overlapped.
Preferably, the top of the adjusting disc is provided with a poking plate opposite to the two groups of lily sealing plates, the two groups of poking plates are obliquely arranged, and the outer surfaces of the poking plates are mutually attached to the outer surfaces of the opposite lily sealing plates.
Preferably, a plurality of fixing plates are fixed at equal intervals along the circumferential direction between the top of the adjusting disk and the bottom of the fixing ring body, a plurality of bending filter cores are arranged between the outer surfaces of the fixing plates, and a plurality of second air outlets are correspondingly positioned on the outer sides of the bending filter cores.
Preferably, the cleaning device comprises an annular ring, the annular ring is fixed on the outer surfaces of the connecting rods, an annular bayonet is formed in the outer surfaces of the annular ring, a swivel is connected to the inner portion of the annular bayonet in a rotating mode, the outer side of the swivel extends to the position right above the first air outlet, a plurality of turbine blades are fixed to the bottom of the swivel at equal intervals along the circumferential direction, and the first air outlets are located below the turbine blades.
Preferably, a plurality of dead levers are fixed at the top of swivel along circumferencial direction equidistance, and a plurality of the surface of dead lever is all equidistance is fixed with a plurality of clean fine hair of nylon, and a plurality of the clean fine hair of nylon is close to the one end of bending the filter core all corresponds the inboard that extends to the filter core of bending.
The invention also provides an air filtering method for the oxygenerator, which is applied to an air filtering device of the oxygenerator and comprises the following steps of:
step S1, connecting the air filtering device with an external oxygen supply pipeline through an air inlet pipe, filtering oxygen through an internal bent filter element, butting two groups of second air outlet holes and butting two groups of first air outlet holes through adjusting an air flow reversing and adjusting device when the bent filter element needs to be cleaned, driving a closing component to work so that air flows out from the outside to the inside of the bent filter element, and driving a cleaning device to clean the bent filter element;
step S2, when the air flow reversing regulating device works, the regulating disc is rotated at first, the fixed disc is communicated with the second air outlet hole on the buffer cavity, then the clamping ring is communicated with the first air outlet hole on the fixed ring body, the closing component is driven to seal the inner side and the outer side of the bent filter element, so that air flow is blown to the outer part of the bent filter element from the second air outlet, and finally the air flow is discharged from the first air outlet hole from the inner part of the bent filter element;
step S3, the adjusting disc is rotated to drive the poking plate to rotate, and the outer surface of the poking plate is mutually attached to the outer surface of the opposite lily sealing plate, so that the lily sealing plate is driven to be mutually attached to seal the inner side and the outer side of the bent filter element;
and S4, after the inner side and the outer side of the bent filter element are sealed, part of air flow is blown to the cleaning device from the inner side of the first air outlet, under the guidance of the turbine blade to the air flow, the blowing force of the air flow is converted into rotation torque to drive the swivel to rotate, and the nylon cleaning fluff on the fixing rod is driven to clean the inner side of the bent filter element when the swivel rotates.
Compared with the prior art, the invention has the beneficial effects that:
1. when the device is in actual work, the device is connected with an external oxygen supply pipeline through an air inlet pipe, oxygen is filtered through an internal bending filter element, when the bending filter element is required to be cleaned, two groups of second air outlet holes are in butt joint, two groups of first air outlet holes are in butt joint through an air flow reversing and adjusting device, and meanwhile, a closing assembly is driven to work so that air flow can flow from the outside of the bending filter element to the inside, and a cleaning device is driven to clean the bending filter element;
2. when the air flow reversing regulating device works, firstly, the regulating disc is rotated, the fixed disc and the second air outlet hole on the buffer cavity are communicated with each other, then the clamping ring and the first air outlet hole on the fixed ring body are communicated with each other, meanwhile, the closing component is driven to seal the inner side and the outer side of the bending filter element, so that air flow is blown to the outer side of the bending filter element from the second air outlet, finally, air flow is discharged from the first air outlet hole from the inner side of the bending filter element, and then the regulating disc is rotated to drive the shifting plate to rotate;
3. after the inner side and the outer side of the bent filter element are sealed, part of air flow is blown to the cleaning device from the inner side of the first air outlet, the blowing force of the air flow can be converted into rotation torque to drive the rotating ring to rotate under the guiding of the turbine blade on the air flow, and the nylon cleaning fluff on the fixing rod can be driven to clean the inner side of the bent filter element when the rotating ring rotates.
Drawings
FIG. 1 is a front perspective view of an air filtration device for an oxygenerator according to one embodiment;
FIG. 2 is a perspective view, in principal section, of the air filtration device for an oxygenerator shown in FIG. 1;
FIG. 3 is a cross-sectional perspective view of the air filtration device for the oxygenerator shown in FIG. 1;
FIG. 4 is a perspective view, in cross-section, of the internal structure of the air filtration device for an oxygenerator shown in FIG. 1;
fig. 5 is a partially enlarged view at a in fig. 4.
In the figure: 1. a fixed ring body; 2. an air inlet pipe; 3. an adjusting plate; 4. a poking plate; 5. a lily sealing plate; 6. a first air outlet hole; 7. a buffer chamber; 8. a fixed plate; 9. a mounting groove; 10. a second air outlet hole; 11. an annular groove; 12. a first air outlet; 13. a second air outlet; 14. a fixed cylinder; 15. a side port; 16. a fixing plate; 17. bending the filter element; 18. a connecting rod; 19. an annular ring; 20. an annular bayonet; 21. a swivel; 22. a turbine blade; 23. a fixed rod; 24. nylon cleaning nap; 25. a clamping ring; 26. and a connecting rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides an air filter for oxygenerator, includes solid fixed ring body 1, and annular groove 11 has been seted up to solid fixed ring body 1's bottom, and gu fixed ring body 1's bottom is fixed with a plurality of connecting rods 26 along circumferencial direction equidistance, is fixed with fixed disk 8 between the bottom of a plurality of connecting rods 26, and the outside of fixed disk 8 is provided with air current switching-over adjusting device, and annular groove 11's inside rotates to be connected with joint ring 25;
the bottom of joint ring 25 is fixed with a plurality of connecting rods 18 along circumferencial direction equidistance, is provided with cleaning device between the surface of a plurality of connecting rods 18, and the bottom of solid fixed ring body 1 is provided with two sets of closure assemblies, and the top of solid fixed ring body 1 is fixed with intake pipe 2.
The effect that it reached is, is connected intake pipe 2 with outside oxygen supply pipeline, then filters oxygen through the inside filter core 17 of bending, when needs are clean to the filter core 17 of bending, dock two sets of second ventholes 10 with two sets of first ventholes 6 butt joint through adjusting the air current switching-over adjusting device, drives closed subassembly work simultaneously and makes the air current can flow from the outside to the inside of filter core 17 of bending to drive cleaning device to clean the filter core 17 of bending.
As shown in fig. 2-5, the airflow reversing adjusting device comprises an adjusting disc 3, a mounting groove 9 is formed in the top of the adjusting disc 3, a fixed disc 8 is clamped in the mounting groove 9, a buffer cavity 7 is formed in the adjusting disc 3, a plurality of first air outlets 12 are formed in the inner top surface of the buffer cavity 7 at equal intervals along the circumferential direction and close to the inner side edge, a plurality of second air outlets 10 are formed in the inner bottom surface of the mounting groove 9 and the top of the fixed disc 8 at equal intervals, a plurality of first air outlets 6 are formed in the bottom of the clamping ring 25 and the top of the fixed ring body 1 at equal intervals, a plurality of second air outlets 13 are formed in the inner top surface of the buffer cavity 7 at equal intervals along the circumferential direction and close to the outer side edge, a plurality of lily sealing plates 5 are connected between the top of the adjusting disc 3 and the bottom of the fixed ring body 1 through spring hinges at equal intervals in a rotating mode, a fixed cylinder 14 is fixed between the top of the adjusting disk 3 and the bottom of the fixed ring body 1, a plurality of side ports 15 are formed on the outer surface of the fixed cylinder 14 at equal intervals along the circumferential direction, a plurality of lily sealing plates 5 are divided into two groups, one group of lily sealing plates 5 is positioned on the inner side of the fixed cylinder 14, the other group of lily sealing plates 5 is positioned at the top edge of the adjusting disk 3, the two groups of lily sealing plates 5 are obliquely arranged and mutually overlapped, a shifting plate 4 opposite to the two groups of lily sealing plates 5 is arranged on the top of the adjusting disk 3, the two groups of shifting plates 4 are obliquely arranged, the outer surfaces of the shifting plates 4 are mutually attached to the outer surfaces of the opposite lily sealing plates 5, a plurality of fixed plates 16 are fixed between the top of the adjusting disk 3 and the bottom of the fixed ring body 1 at equal intervals along the circumferential direction, a bending filter element 17 is arranged between the outer surfaces of the plurality of the fixed plates 16, the second air outlets 13 are respectively positioned on the outer side of the bent filter element 17.
The effect that it reached is, air current switching-over adjusting device during operation, at first rotate adjusting disk 3, with the second venthole 10 intercommunication each other on fixed disk 8 and the cushion chamber 7, then with the first venthole 6 intercommunication each other that is located on joint ring 25 and the fixed ring body 1, drive the closure subassembly simultaneously and will bend filter core 17 inside and outside both sides seal, make the air current blow the outside of bending filter core 17 from second gas outlet 13, finally the air current is discharged from first venthole 6 by the inside of bending filter core 17, can drive dial plate 4 rotation at rotating adjusting disk 3, owing to dial plate 4's surface and the surface laminating each other of relative lily closing plate 5, so can drive lily closing plate 5 laminating each other, will bend filter core 17 inside and outside both sides seal.
As shown in fig. 2-5, the cleaning device comprises an annular ring 19, the annular ring 19 is fixed on the outer surfaces of a plurality of connecting rods 18, an annular bayonet 20 is formed on the outer surfaces of the annular ring 19, a rotating ring 21 is rotatably connected to the inner portion of the annular bayonet 20, the outer side of the rotating ring 21 extends to the position right above the first air outlet 12, a plurality of turbine blades 22 are fixed at the bottom of the rotating ring 21 along the circumferential direction at equal intervals, a plurality of first air outlets 12 are all located below the turbine blades 22, a plurality of fixing rods 23 are fixed at the top of the rotating ring 21 along the circumferential direction at equal intervals, a plurality of nylon cleaning fluff 24 are fixed at the outer surfaces of the fixing rods 23 at equal intervals, and one ends, close to the bending filter element 17, of the nylon cleaning fluff 24 extend to the inner side of the bending filter element 17 correspondingly.
The effect that it reaches is, after will bending filter core 17 inside and outside both sides are sealed, and part air current blows to cleaning device from the inside of first gas outlet 12, can be under the direction of turbine blade 22 to the air current, turns into the rotation moment of torsion with the air current's blowing and drives swivel 21 rotation, can drive a plurality of nylon cleaning fine hair 24 on the dead lever 23 when swivel 21 rotates and clean the inboard of bending filter core 17.
The application method and the working principle of the device are as follows: when the air flow reversing regulating device works, firstly, the regulating disc 3 is rotated, the fixed disc 8 and the second air outlet holes 10 on the buffer cavity 7 are communicated with each other, then, the clamping ring 25 and the first air outlet holes 6 on the fixed ring body 1 are communicated with each other, so that air flow is blown to the outer part of the bent filter element 17 from the second air outlet 13, finally, the air flow is discharged from the first air outlet holes 6 from the inner part of the bent filter element 17, the dial plate 4 can be driven to rotate by rotating the regulating disc 3, the dial plate 4 can be driven to be mutually adhered to the outer surface of the opposite lily sealing plate 5, the lily sealing plate 5 can be mutually adhered to seal the inner side and the outer side of the bent filter element 17, after the inner side and the outer side of the bent filter element 17 are sealed, part of air flow is blown to the cleaning device from the inner side of the first air outlet 12, the blowing force of the air flow can be converted into rotating torque to drive the rotating ring 21 to rotate under the guidance of the air flow by the turbine blades 22, and the plurality of nylon cleaning elements 24 on the fixed rod 23 can be driven to clean the inner side of the bent filter element 17 when the rotating ring 21 rotates.
For example, in one embodiment, the present invention further provides an air filtering method for an oxygenerator, which is applied to the air filtering device for an oxygenerator, and includes the following steps:
step S1, connecting an air filtering device with an external oxygen supply pipeline through an air inlet pipe 2, filtering oxygen through an internal bent filter element 17, butting two groups of second air outlet holes 10 and butting two groups of first air outlet holes 6 through adjusting an air flow reversing and adjusting device when the bent filter element 17 needs to be cleaned, driving a closing component to work so that air flows out from the outside of the bent filter element 17 to the inside, and driving a cleaning device to clean the bent filter element 17;
step S2, when the air flow reversing regulating device works, firstly, the regulating disc 3 is rotated, the fixed disc 8 and the second air outlet hole 10 on the buffer cavity 7 are communicated with each other, then the clamping ring 25 and the first air outlet hole 6 on the fixed ring body 1 are communicated with each other, meanwhile, the closing component is driven to seal the inner side and the outer side of the bent filter element 17, so that air flow is blown to the outside of the bent filter element 17 from the second air outlet 13, and finally, the air flow is discharged from the first air outlet hole 6 from the inside of the bent filter element 17;
step S3, the dial plate 4 is driven to rotate by rotating the adjusting plate 3, and the outer surface of the dial plate 4 is mutually attached to the outer surface of the opposite lily sealing plate 5, so that the lily sealing plate 5 is driven to be mutually attached to seal the inner side and the outer side of the bending filter element 17;
step S4, after the inner side and the outer side of the bent filter element 17 are sealed, part of air flow is blown to the cleaning device from the inside of the first air outlet 12, under the guidance of the turbine blade 22 to the air flow, the blowing force of the air flow is converted into rotation torque to drive the rotating ring 21 to rotate, and when the rotating ring 21 rotates, the plurality of nylon cleaning fluff 24 on the fixing rod 23 are driven to clean the inner side of the bent filter element 17.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. The air filtering device for the oxygenerator is characterized by comprising a fixed ring body (1), wherein an annular groove (11) is formed in the bottom of the fixed ring body (1), a plurality of connecting rods (26) are fixed at equal intervals along the circumferential direction at the bottom of the fixed ring body (1), a fixed disc (8) is fixed between the bottoms of the connecting rods (26), an airflow reversing and adjusting device is arranged on the outer side of the fixed disc (8), and a clamping ring (25) is connected in the annular groove (11) in a rotating mode;
the bottom of joint ring (25) is fixed with a plurality of connecting rods (18) along circumferencial direction equidistance, and is a plurality of be provided with cleaning device between the surface of connecting rod (18), the bottom of solid fixed ring body (1) is provided with two sets of closure assemblies, the top of solid fixed ring body (1) is fixed with intake pipe (2).
2. The air filtering device for the oxygenerator according to claim 1, wherein the air flow reversing regulating device comprises a regulating disc (3), a mounting groove (9) is formed in the top of the regulating disc (3), the fixing disc (8) is clamped in the mounting groove (9), a buffer cavity (7) is formed in the regulating disc (3), a plurality of first air outlets (12) are formed in the inner top surface of the buffer cavity (7) at equal intervals along the circumferential direction close to the inner edge, a plurality of second air outlets (10) are formed in the inner bottom surface of the mounting groove (9) and the top of the fixing disc (8) at equal intervals in a staggered mode, and a plurality of first air outlets (6) are formed in the bottom of the clamping ring (25) and the top of the fixing ring body (1) at equal intervals in a staggered mode.
3. The air filtering device for the oxygenerator according to claim 2, wherein the closing assembly comprises a plurality of lily sealing plates (5), a plurality of second air outlets (13) are formed in the inner top surface of the buffer cavity (7) at positions close to the outer side edge in the circumferential direction at equal intervals, the plurality of lily sealing plates (5) are connected between the top of the adjusting disc (3) and the bottom of the fixed ring body (1) in an equidistant rotating mode through spring hinges, a fixed cylinder (14) is fixed between the top of the adjusting disc (3) and the bottom of the fixed ring body (1), and a plurality of side ports (15) are formed in the outer surface of the fixed cylinder (14) at equal intervals in the circumferential direction.
4. An air filtration device for an oxygenerator according to claim 3, characterized in that a plurality of said lily sealing plates (5) are divided into two groups, one of which is located inside said fixed cylinder (14) and the other of which (5) is located at the top edge of said regulating disk (3), both of said lily sealing plates (5) being inclined and arranged one above the other.
5. The air filtering device for an oxygenerator according to claim 4, wherein a dial plate (4) opposite to two sets of lily sealing plates (5) is arranged at the top of the regulating disc (3), the dial plates (4) of the two sets are all obliquely arranged, and the outer surfaces of the dial plates (4) are mutually attached to the outer surfaces of the opposite lily sealing plates (5).
6. The air filtering device for the oxygenerator according to claim 5, wherein a plurality of fixing plates (16) are fixed between the top of the adjusting disc (3) and the bottom of the fixing ring body (1) along the circumferential direction at equal intervals, bending filter elements (17) are arranged between the outer surfaces of the fixing plates (16), and the second air outlets (13) are correspondingly positioned on the outer sides of the bending filter elements (17).
7. The air filtering device for an oxygenerator according to claim 6, wherein the cleaning device comprises an annular ring (19), the annular ring (19) is fixed on the outer surfaces of a plurality of connecting rods (18), an annular bayonet (20) is formed on the outer surfaces of the annular ring (19), a swivel (21) is rotatably connected to the inside of the annular bayonet (20), the outer side of the swivel (21) extends to the position right above the first air outlet (12), a plurality of turbine blades (22) are fixed at the bottom of the swivel (21) at equal intervals along the circumferential direction, and a plurality of the first air outlets (12) are all located below the turbine blades (22).
8. The air filtering device for the oxygenerator according to claim 7, wherein a plurality of fixing rods (23) are fixed on the top of the swivel (21) at equal intervals along the circumferential direction, a plurality of nylon cleaning fluff (24) are fixed on the outer surfaces of the fixing rods (23) at equal intervals, and one ends, close to the bending filter element (17), of the nylon cleaning fluff (24) extend to the inner side of the bending filter element (17) correspondingly.
9. An air filtering method for an oxygenerator, characterized by being applied to the air filtering device for an oxygenerator according to any one of claims 1 to 8, comprising the steps of:
step S1, connecting the air filtering device with an external oxygen supply pipeline through an air inlet pipe (2), filtering oxygen through an internal bending filter element (17), butting two groups of second air outlet holes (10) and two groups of first air outlet holes (6) through adjusting an air flow reversing adjusting device when the bending filter element (17) needs to be cleaned, simultaneously driving a closing component to work so that air flows out from the outside of the bending filter element (17) to the inside, and driving a cleaning device to clean the bending filter element (17);
step S2, when the air flow reversing regulating device works, firstly, the regulating disc (3) is rotated, the fixed disc (8) and the second air outlet hole (10) on the buffer cavity (7) are communicated with each other, then the clamping ring (25) and the first air outlet hole (6) on the fixed ring body (1) are communicated with each other, meanwhile, the closing component is driven to seal the inner side and the outer side of the bent filter element (17), so that air flow is blown to the outside of the bent filter element (17) from the second air outlet (13), and finally, the air flow is discharged from the first air outlet hole (6) from the inside of the bent filter element (17);
step S3, the dial plate (4) is driven to rotate by rotating the adjusting plate (3), and the outer surface of the dial plate (4) is mutually attached to the outer surface of the opposite lily sealing plate (5), so that the lily sealing plate (5) is driven to be mutually attached to seal the inner side and the outer side of the bending filter element (17);
and S4, after the inner side and the outer side of the bent filter element (17) are sealed, part of air flow is blown to the cleaning device from the inside of the first air outlet (12), under the guidance of the turbine blade (22) on the air flow, the blowing force of the air flow is converted into rotating torque to drive the rotating ring (21) to rotate, and when the rotating ring (21) rotates, the plurality of nylon cleaning fluff (24) on the fixing rod (23) are driven to clean the inner side of the bent filter element (17).
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| CN202311212814.7A CN116943362B (en) | 2023-09-20 | 2023-09-20 | Air filtering device for oxygenerator and filtering method thereof |
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| CN202311212814.7A CN116943362B (en) | 2023-09-20 | 2023-09-20 | Air filtering device for oxygenerator and filtering method thereof |
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| CN116943362B CN116943362B (en) | 2023-12-12 |
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| CN116943362B (en) | 2023-12-12 |
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