CN203816401U - Air filter capable of removing dust in spraying manner - Google Patents
Air filter capable of removing dust in spraying manner Download PDFInfo
- Publication number
- CN203816401U CN203816401U CN201420185272.9U CN201420185272U CN203816401U CN 203816401 U CN203816401 U CN 203816401U CN 201420185272 U CN201420185272 U CN 201420185272U CN 203816401 U CN203816401 U CN 203816401U
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- filter
- filter element
- deashing
- air
- chimney
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- 239000000428 dust Substances 0.000 title claims abstract description 52
- 238000005507 spraying Methods 0.000 title abstract 8
- 238000001914 filtration Methods 0.000 claims abstract description 130
- 239000007921 spray Substances 0.000 claims abstract description 47
- 239000012528 membrane Substances 0.000 claims description 50
- 238000004140 cleaning Methods 0.000 claims description 47
- 239000012530 fluid Substances 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 17
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 14
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 14
- 239000004698 Polyethylene Substances 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 13
- -1 polyethylene Polymers 0.000 claims description 13
- 229920000573 polyethylene Polymers 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 241000193935 Araneus diadematus Species 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 239000005871 repellent Substances 0.000 abstract 2
- 230000002940 repellent Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 12
- 239000007787 solid Substances 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000008520 organization Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
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- 238000005265 energy consumption Methods 0.000 description 2
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- 238000004062 sedimentation Methods 0.000 description 2
- 206010046996 Varicose vein Diseases 0.000 description 1
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Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses an air filter capable of removing dust in a spraying manner which can effectively remove the dust of a filter element. The air filter comprises a shell and a filter element which is installed in the shell, wherein the shell is connected with the filter element through a porous plate and forms a first space and a second space, which are separated from each other, to-be-filtered air is transferred in the first space, the filtered air is transferred in the second space, the filter element is provided with a smooth water-repellent filtering working surface, and the air filter is provided with a spraying dust removal device which is used for removing the dust on the filter working surface in a spraying manner, washing liquid acting on the filtering working surface through a spray head of the spraying dust removal device flows along the filtering working surface and carries the dust on the filter working surface so as to be separated from the filtering working surface when in spraying dust removal. By combining the characteristics of the filtering working surface such as smoothness and water repellent property, the spraying dust removal device is used for spraying the filtering working surface of the filter element so as to remove the dust, so that the dust on the filter working surface can be effectively removed.
Description
Technical field
The utility model relates to a kind of pneumatic filter that sprays deashing.
Background technology
Figure 1 shows that a kind of existing air handling system.It comprises indoor air outlet 610, indoor inlet scoop 620, air supply duct 700, return air duct 800 and blower fan 100, indoor air outlet 610 is connected with the air outlet of blower fan 100 by air supply duct 700, indoor inlet scoop 620 is connected with the inlet scoop of blower fan 100 by return air duct 800, on air supply duct 700, be disposed with heater 300 by air-flow direction, refrigerating plant 400 and humidity conditioner 500, on air supply duct 700, between heater 300 and the air outlet of blower fan 100, be also provided with an air cleaner 200, above-mentioned these facilities form an air circulation stream, and on this air circulation stream, exist to the new wind input port that supplements outside air in this air circulation stream, particularly, new wind input port is the inlet scoop of blower fan 100.The operation principle of this air handling system is: by blower fan 100 by outside air (being new wind) air amount circulation stream, after air cleaner 200 filters, the temperature and humidity that makes air reach setting by heater 300, refrigerating plant 400 and humidity conditioner 500 successively enters the interior space 600 from indoor air outlet 610, the inlet scoop that air in the interior space 600 is constantly drawn back blower fan 100 from indoor inlet scoop 620, return air duct 800 again simultaneously, and then circulate in air circulation stream.The subject matter that above-mentioned air handling system exists is, what its air cleaner 200 adopted is the filter cartridge type dust removal and filtration filter core that filtering accuracy is lower, service life is shorter, the on the one hand effectively fine solid particle in filtering outside air of this filter core, especially the fine particulates taking PM10-PM2.5 as representative, cause being subject to PM10-PM2.5 in the interior space 600 and pollute, affect the healthy of people; The fine solid particle of wearing filter is easily attached in system the harm such as the efficiency that the equipment such as pipeline, heat exchange, control be wet are caused is lost, corrosion, increases system energy consumption and also increases maintenance cost.
Utility model content
First technical problem to be solved in the utility model is to provide a kind ofly can effectively improve that indoor PM10-PM2.5 pollutes and the device efficiency that caused by fine solid particle is lost, the air handling system of etching problem.
For this reason, air handling system of the present utility model comprises indoor air outlet, indoor inlet scoop, air supply duct, return air duct and blower fan, indoor air outlet is connected with the air outlet of blower fan by air supply duct, indoor inlet scoop is connected with the inlet scoop of blower fan by return air duct, on air supply duct, be provided with heater and/or refrigerating plant and/or humidity conditioner, thereby form air circulation stream, on this air circulation stream, exist to the new wind input port that supplements outside air in this air circulation stream, described new wind input port is connected with an air film filter by new wind air inlet pipe, the filter element that this air film filter uses has by porous breathable supporter and is attached to the filtering material that the filtration membrane of porous breathable supporting body surface forms, filtration membrane wherein has smooth, show as the filtration face of hydrophobicity, and the clearance that this filter membrane is faced the dust of particle diameter >=0.1 μ m in air to be filtered reaches more than 99%.Wherein, described porous breathable supporter is preferably high density porous polyethylene supporter, and described filtration membrane is preferably expanded PTFE filtration membrane.
In above-mentioned filter element, its filtration membrane is born filtration, and porous breathable supporter only plays a supportive role, and does not participate in filtering.Like this, filter face have compared with (clearance of the dust to particle diameter >=0.1 μ m reaches more than 99%) under high filtering precision, airborne dust to be filtered is almost blocked in the outside of filtering face completely, pure air after filter can reach and approach zero dust content, make the equipment such as pipeline in air handling system, heat exchange, control be wet avoid dust impact, ensure its operating efficiency, reduce system energy consumption and maintenance cost.Because filtration membrane has smooth, to show as hydrophobicity filtration face, even if being also difficult for producing under the higher weather conditions of humidity sticks with paste film phenomenon, and the very easy removing of film surface dust, reach long-term application target.When porous breathable supporter is preferably high density porous polyethylene supporter, when filtration membrane is preferably expanded PTFE filtration membrane, first, expanded PTFE filtration membrane itself has very high filtering accuracy, and embody again stronger rigidity under the support of high density porous polyethylene supporter, therefore the high filtering precision that filtering material can stable for extended periods of time; Secondly, expanded PTFE filtration membrane be a kind of by stretcher strain (i.e. the implication of " varicosity ") thus on polytetrafluoroethylmaterial material, form the film of fibrous blind hole, the feature that it has extremely strong hydrophobicity and does not glue ash (smooth surface), therefore be very suitable for the filtration membrane in the utility model.
As the preferred concrete structure of one of above-mentioned air film filter, this air film filter comprises at least two spaced filter elements in groups front and back, each group filter element comprises that many left and right are spaced and an end opening, the chimney filter of other end sealing, the openend of these chimney filters is unified being arranged on orifice plate upwards, blind end unanimously down, the top that is positioned at this orifice plate in air film filter is the pure qi (oxygen) chamber that is provided with exhaust outlet, being positioned at orifice plate below is the open space unlimited to the external world, described each chimney filter comprises the inner tube layer being made up of porous breathable supporter and is attached to the external tube layer forming on described inner tube outer surface and by described filtration membrane.
For the filter element of air film filter is effectively carried out to deashing, the spray deashing device that sprays deashing for the filtration face to its filter element is installed on described air film filter, and the cleaning fluid acting on described filtration face by the shower nozzle of this spray deashing device when spray deashing departs from from filtering face after filter membrane surface current moves and carry its surperficial dust.Described spray deashing device preferably adopts the shower nozzle that is positioned at chimney filter side top and falls apart shape sprinkling downwards.On this basis, described spray deashing device can be designed to comprise be arranged between two groups of filter elements of arbitrary neighborhood and with filter element in the cleaning fluid conveying pipeline be arrangeding in parallel every orientation between left and right of chimney filter, on each cleaning fluid conveying pipeline, be arranged at intervals with multiple described shower nozzles, the input of each cleaning fluid conveying pipeline is connected with feed liquor house steward respectively.
The filter element using in conjunction with air film filter has by porous breathable supporter and is attached to the filtering material that the filtration membrane of porous breathable supporting body surface forms, filtration membrane wherein has smooth, show as the feature of the filtration face of hydrophobicity, use above-mentioned spray deashing device to spray deashing to the filtration face of filter element, the cleaning fluid (for example water) acting on described filtration face by the shower nozzle of spray deashing device when spray deashing departs from from filtering face after filter membrane surface current moves and carry its surperficial dust, can effectively remove the dust filtering on face.In addition, the clearance of facing the dust of particle diameter >=0.1 μ m in air to be filtered due to filter membrane reaches more than 99%, while guaranteeing to filter, fine dust is difficult to pierce the inside of filtering material, therefore these fine dust can only be attached to the surface of filtering face, thereby can be easy to be cleaned in the time of spray deashing.
For the filter element of air film filter is carried out to deashing, also can take following scheme, that is: described air film filter is also included in the washer moving with respect to its filter element under the driving of displacement controlling organization, described in the time of air film filter normal filtration, filter element is positioned at this washer outside, described in the time that filter element is carried out to Ultrasonic Cleaning, filter element is positioned at this washer inside, in this washer, form the cleaning liquid bath that holds filter element, described cleaning liquid bath connects ultrasonic generator.This scheme proposes filter element to carry out Ultrasonic Cleaning, can make the dust on filter element obtain removing comparatively thoroughly, and can remove the usual manner such as organic particle, aerosol being attached on filter element and be difficult to removal of contamination.Equally have by porous breathable supporter and be attached to the filtering material that the filtration membrane of porous breathable supporting body surface forms owing to combining filter element that air film filter uses, filtration membrane wherein has the feature of smooth, to show as hydrophobicity filtration face, makes Ultrasonic Cleaning mode produce the ash-removal effect of highly significant to this kind of filter element.
Second technical problem to be solved in the utility model is to provide the above-mentioned spray deashing principle of a kind of reference, thereby can carry out to filter element the pneumatic filter of the sprayed deashing of effective deashing.
This can spray the pneumatic filter of deashing, comprise shell and be arranged on the filter element in shell, described shell is connected and forms the first space and the second space of separation by orifice plate with filter element, the transmission of gas to be filtered occurs in the first space, the transmission of filtering gas occurs in second space, described filter element has smooth, show as the filtration working face of hydrophobicity, and, spray deashing device for described filtration working face being sprayed to deashing is installed on this pneumatic filter, the cleaning fluid acting on described filtration working face by the shower nozzle of this spray deashing device when spray deashing departs from from filtering working face after the work of filtration surface current moves and carry its surperficial dust.Wherein, described filter element preferably has by porous breathable supporter and is attached to the filtering material that the filtration membrane of porous breathable supporting body surface forms, and filtration membrane wherein has smooth, to show as hydrophobicity filtration face.More preferably high density porous polyethylene supporter of described porous breathable supporter, described filtration membrane is expanded PTFE filtration membrane more preferably.
The feature that combined filtering working face is smooth, show as hydrophobicity, use above-mentioned spray deashing device to spray deashing to the filtration working face of filter element, the cleaning fluid (for example water) acting on described filtration working face by the shower nozzle of spray deashing device when spray deashing departs from from filtering face after the work of filtration surface current moves and carry its surperficial dust, can effectively remove the dust filtering on working face.The clearance of facing the dust of particle diameter >=0.1 μ m in air to be filtered when described filter membrane reaches more than 99%, while guaranteeing to filter, fine dust is difficult to pierce the inside of filtering material, therefore these fine dust can only be attached to the surface of filtering face, thereby can be easy to be cleaned in the time of spray deashing.
Described filter element is preferably designed for the chimney filter that comprises many end openings and other end sealing, the openend of these chimney filters is unified being arranged on orifice plate upwards, blind end unanimously down, the outer surface of each chimney filter is to filter working face, sprays deashing device employing and is positioned at the also shower nozzle of downward loose shape sprinkling of chimney filter side top.On this basis, the pneumatic filter that can spray deashing can be designed to comprise at least two spaced filter elements in groups front and back, each group filter element comprises the many spaced described chimney filters in left and right, the top that is positioned at this orifice plate in pneumatic filter is the pure qi (oxygen) chamber that is provided with exhaust outlet, the below that is positioned at this orifice plate is the open space unlimited to the external world, spray deashing device wherein comprise be arranged between two groups of filter elements of arbitrary neighborhood and with filter element in the cleaning fluid conveying pipeline be arrangeding in parallel every orientation between left and right of chimney filter, on each cleaning fluid conveying pipeline, be arranged at intervals with multiple described shower nozzles, the input of each cleaning fluid conveying pipeline is connected with feed liquor house steward respectively.
Be further, between two groups of filter elements of arbitrary neighborhood, wherein the each chimney filter in one group of filter element aligns with the each chimney filter front and back in another group filter element successively, between two chimney filters that align in adjacent two chimney filters and adjacent another group filter element in same filter element, arrange a shower nozzle, the center of this shower nozzle overlaps with the intersection point of these four chimney filter center cross spiders.Thus, just make a shower nozzle can be simultaneously and stepless action in four chimney filters of its periphery, guarantee cleaning efficiency.
The above-mentioned pneumatic filter that sprays deashing also can arrange the back-blowing dust removing device of filter element, and makes to spray deashing device and back-blowing dust removing device collaborative work.Back-blowing dust removing device is the ash removing equipment that current pneumatic filter generally uses, to be blowback work gas by certain pressure carry out blowback (airflow direction of blowback work entraining air stream direction when filtering is contrary) to filter element to its operation principle, thereby the dust that is attached to filter element surface is recoiled.A problem of reverse gas cleaning is, in the time containing fine solid particle in gas to be filtered, due to these fine solid particle very light weight, be not easy sedimentation, even by blowback by fine solid particle after filter element washes out, they still can be dispersed in filter element around, in the short time, can be re-attached to again on filter element.In the pneumatic filter that can spray deashing, arrange after back-blowing dust removing device, when spray deashing device wherein sprays after deashing the filtration working face of filter element, can not become dry owing to filtering on working face at once, carry but be attached with the moistening material that is gathered into larger solid particle secretly, at this moment can after the water evaporates of filtering on working face, restart back-blowing dust removing device, or directly after spray deashing, start the water evaporates on back-blowing dust removing device accelerated filtration working face and after water evaporates, continue reverse gas cleaning, thereby the larger solid particle being gathered into is washed out from filtering working face, make particle natural subsidence.So just well solve the problem that fine solid particle is difficult to sedimentation.The 3rd technical problem to be solved in the utility model is to provide the above-mentioned Ultrasonic Cleaning principle of a kind of reference, thereby filter element is carried out to the pneumatic filter of deashing and the filter element washer of pneumatic filter.
This pneumatic filter comprises shell and is arranged on the filter element in shell, described shell is connected and forms the first space and the second space of separation by orifice plate with filter element, the transmission of gas to be filtered occurs in the first space, the transmission of filtering gas occurs in second space, pneumatic filter is also included in the washer moving with respect to its filter element under the driving of displacement controlling organization, described in the time of pneumatic filter normal filtration, filter element is positioned at this washer outside, described in the time that filter element is carried out to Ultrasonic Cleaning, filter element is positioned at this washer inside, in this washer, form the cleaning liquid bath that holds filter element, described cleaning liquid bath connects ultrasonic generator.Wherein, filter element preferably has the filtering material being made up of at the expanded PTFE filtration membrane of high density porous polyethylene supporting body surface high density porous polyethylene supporter and close attachment.Further, the filter membrane of described expanded PTFE filtration membrane reaches more than 99% in the face of the clearance of the dust of particle diameter >=0.1 μ m in air to be filtered.
Described filter element is preferably designed for the chimney filter that comprises many end openings and other end sealing, the openend of these chimney filters is unified being arranged on orifice plate upwards, blind end unanimously down, the outer surface of each chimney filter is for filtering working face, the top that is positioned at this orifice plate in pneumatic filter is the pure qi (oxygen) chamber that is provided with exhaust outlet, being positioned at orifice plate below is the open space unlimited to the external world, and described displacement controlling organization is by driving washer and the upper and lower relative motion of filter element filter element is entered or shift out washer.On this basis, pneumatic filter can be further designed to and comprise washer mounting seat, the shell of pneumatic filter is fixed on the top of this washer mounting seat by support entirety, filter element is between orifice plate and washer mounting seat, the barrel jacket of described washer is contained on described shell, this cylindrical shell is connected respectively displacement controlling organization with shell, in the time of pneumatic filter normal filtration, on cylindrical shell, move to filter element top, in the time that filter element is carried out to deashing, cylindrical shell drops to and is connected the adaptive cleaning liquid bath that holds filter element that forms with washer mounting seat.Described ultrasonic generator is preferably mounted in washer mounting seat.Described displacement controlling organization is preferably designed for and comprises the rack and pinion drive mechanism being arranged between cylinder inboard wall and shell.
In a word, thus above-mentioned gas filter is that washer is arranged on pneumatic filter to a kind of new gas filter forming.It can realize the Ultrasonic Cleaning to filter element in the situation that filter element is exempted from dismounting.Certainly, realize the Ultrasonic Cleaning to filter element, also can adopt the filter element washer of special pneumatic filter, have the cleaning liquid bath that holds filter element in this washer, described cleaning liquid bath connects ultrasonic generator.Like this, filter element can be put into washer after pneumatic filter dismounting again and carry out Ultrasonic Cleaning, after cleaning, pack filter element into pneumatic filter again.Wherein, the open ended filter element of described cleaning liquid bath is at least one group of all-in-one-piece filter element, and this filter element comprises many spaced chimney filters, and described each chimney filter connects as one by the first termination connector and the second termination connector; Described the first termination connector is provided with respectively the passage with the openend conducting of described each chimney filter.Owing to many chimney filters being connected into one group of filter element, therefore improved the convenience that filter element is installed.Further, described filter element is preferably equally and has the filtering material being made up of at the expanded PTFE filtration membrane of high density porous polyethylene supporting body surface high density porous polyethylene supporter and close attachment.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.The aspect that the utility model is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Brief description of the drawings
Fig. 1 is a kind of structural representation of existing air handling system.
Fig. 2 is the structural representation of the air handling system of the utility model embodiment 1.
Fig. 3 is the structural representation of the air handling system of the utility model embodiment 2.
Fig. 4 is a kind of structural representation of air film filter in the utility model air handling system.
Fig. 5 is the left view (simultaneously having adopted broken section in this figure with finder internal structure) of Fig. 4.
Fig. 6 be in Fig. 4 A-A to cutaway view.
Fig. 7 is the structural representation of filter element in the utility model air film filter.
Fig. 8 is the upward view of Fig. 7.
Fig. 9 is the partial enlarged drawing at A place in Fig. 8.
Figure 10 is the structural representation of the utility model filter element washer.
Figure 11 is the another kind of structural representation (filtration condition) of air film filter in the utility model air handling system.
Figure 12 is the structural representation (Ultrasonic Cleaning state) of the air film filter of Figure 11.
Detailed description of the invention
As shown in Figure 1, existing air handling system comprises indoor air outlet 610, indoor inlet scoop 620, air supply duct 700, return air duct 800 and blower fan 100, indoor air outlet 610 is connected with the air outlet of blower fan 100 by air supply duct 700, indoor inlet scoop 620 is connected with the inlet scoop of blower fan 100 by return air duct 800, on air supply duct 700, be disposed with heater 300 by air-flow direction, refrigerating plant 400 and humidity conditioner 500, on air supply duct 700, between heater 300 and the air outlet of blower fan 100, be also provided with an air cleaner 200 that adopts filter cartridge type dust removal and filtration filter core, above-mentioned these facilities form an air circulation stream, on this air circulation stream, exist to the new wind input port that supplements outside air in this air circulation stream, be specially blower fan 100 an inlet scoop (be blower fan 100 not only as the power source that air is circulated in described air circulation stream but also as by new wind input port the power source to supplementary outside air in this air circulation stream).Its operation principle is: by blower fan 100 by outside air (being new wind) air amount circulation stream, after air cleaner 200 filters, the temperature and humidity that makes air reach setting by heater 300, refrigerating plant 400 and humidity conditioner 500 successively enters the interior space 600 from indoor air outlet 610, the inlet scoop that air in the interior space 600 is constantly drawn back blower fan 100 from indoor inlet scoop 620, return air duct 800 again simultaneously, and then circulate in air circulation stream.
As shown in Figure 2, the air handling system of the utility model embodiment 1 is an air handling system of installing first in New Buildings, it comprises indoor air outlet 610 equally, indoor inlet scoop 620, air supply duct 700, return air duct 800 and blower fan 100, indoor air outlet 610 is connected with the air outlet of blower fan 100 by air supply duct 700, indoor inlet scoop 620 is connected with the inlet scoop of blower fan 100 by return air duct 800, on air supply duct 700, be disposed with heater 300 by air-flow direction, refrigerating plant 400 and humidity conditioner 500(have cancelled air cleaner 200), above-mentioned these facilities form an air circulation stream, on this air circulation stream, exist to the new wind input port that supplements outside air in this air circulation stream, blower fan 100 is not only as the power source that air is circulated in described air circulation stream but also as the power source to supplementary outside air in this air circulation stream by new wind input port, in addition, new wind input port is connected with an air film filter 900 by new wind air inlet pipe, known in conjunction with Fig. 4-9, the filter element that this air film filter 900 uses has by porous breathable supporter 911b and is attached to the filtering material that the filtration membrane 911a on porous breathable supporter 911b surface forms, filtration membrane 911a wherein has smooth, show as the filtration face of hydrophobicity, and in the face of the clearance of the dust of particle diameter >=0.1 μ m in air to be filtered reaches, more than 99% (wherein porous breathable supporter 911b is high density porous polyethylene supporter to this filter membrane, filtration membrane 911a is expanded PTFE filtration membrane, filtering material is by the first moulding high density porous polyethylene of mould supporter, and then cover the method preparation of one deck expanded PTFE filtration membrane at its surface heat, test shows that the clearance that this expanded PTFE filtration membrane is the dust of 0.1～0.12 μ m to particle diameter reaches 99.97%, clearance to PM2.5 particle reaches 99.999%, clearance to PM10 particle reaches 99.999%).
As shown in Figure 3, the air handling system of the utility model embodiment 2 is one the air handling system in existing structure is carried out to improved air handling system, it comprises indoor air outlet 610, indoor inlet scoop 620, air supply duct 700, return air duct 800 and blower fan 100, indoor air outlet 610 is connected with the air outlet of blower fan 100 by air supply duct 700, indoor inlet scoop 620 is connected with the inlet scoop of blower fan 100 by return air duct 800, on air supply duct 700, be disposed with heater 300 by air-flow direction, refrigerating plant 400 and humidity conditioner 500(have retained the air cleaner 200 in Fig. 1 simultaneously, but the filter cartridge type dust removal and filtration filter core in this air cleaner 200 is dismantled, be that 200 of air cleaners are as air flow passage, and no longer there is filtering function), above-mentioned these facilities form an air circulation stream, on this air circulation stream, exist to the new wind input port that supplements outside air in this air circulation stream, blower fan 100 is not only as the power source that air is circulated in described air circulation stream but also as the power source to supplementary outside air in this air circulation stream by new wind input port, new wind input port is connected with an air film filter 900 by new wind air inlet pipe, the filter element that this air film filter 900 uses is identical with embodiment 1, in addition, because the air handling system of embodiment 2 is the transformation to existing air handling system, retain former blower fan 100, filtering accuracy air film filter 900 filtering accuracies low and that increase of considering former air cleaner 200 are high, also higher to the requirement of filter pressure, therefore embodiment 2 air handling systems have increased the second blower fan 100 ' (being mainly used in strengthening filter pressure), the inlet scoop of the second blower fan 100 ' is connected with described air film filter 900, the air outlet of the second blower fan 100 ' is connected with described new wind input port.In addition, the air handling system of embodiment 2 also can further be set up the second return air duct 800 ', the air inlet of this second return air duct 800 ' is connected on described return air duct 800, the exhaust outlet of the second return air duct 800 ' is connected with the inlet scoop of the second blower fan 100 ', thereby air circulation is assigned to respectively to blower fan 100 and the second blower fan 100 ', guarantees circulation power.
The air handling system of above-described embodiment 1 and embodiment 2 all can adopt the air film filter 900 as shown in Fig. 4-9, also can adopt the air film filter 900 as shown in Figure 11-12.Respectively the air film filter 900 of these two kinds of structures is specifically described below.Air film filter 900 as shown in Fig. 4-9 comprises shell 920 and is arranged on the filter element in shell 920, shell 920 supports on the ground by support 930, between shell 920 and filter element, be connected by orifice plate 940, filter element comprises many groups front and back (" front and back " direction is herein to be as the criterion shown in arrow in Fig. 6) spaced filter element 910, each group filter element comprises that many left and right (" left and right " direction is herein to be as the criterion shown in arrow in Fig. 6) are spaced and an end opening, the chimney filter 911 of other end sealing, the openend of these chimney filters 911 is unified being arranged on orifice plate 940 upwards, blind end unanimously down, the top that is positioned at this orifice plate 940 in air film filter 900 is the pure qi (oxygen) chamber (being made up of shell 920 and orifice plate 940) that is provided with exhaust outlet 921, being positioned at orifice plate 940 belows is the open space unlimited to the external world, described each chimney filter 911 comprises the inner tube layer being made up of porous breathable supporter 911b and is attached to the external tube layer forming on described inner tube outer surface and by described filtration membrane 911a that (porous breathable supporter 911b is described high density porous polyethylene supporter, filtration membrane 911a is described expanded PTFE filtration membrane), and, arbitrarily between two adjacent groups filter element 910 with filter element 910 in chimney filter 911 be arranged with a cleaning fluid conveying pipeline 941 in parallel every orientation between left and right, on each cleaning fluid conveying pipeline 941, be arranged at intervals with multiple atomizers 942 that are positioned at chimney filter 911 side tops the shape sprinkling of faling apart downwards, the input of each cleaning fluid conveying pipeline 941 is connected with feed liquor house steward 943 respectively.In addition, as can be seen from Figure 6, arbitrarily between two adjacent groups filter element 910, wherein the each chimney filter 911 in one group of filter element 910 aligns with each chimney filter 911 front and back in another group filter element 910 successively, between two chimney filters 911 that align in adjacent two chimney filters 911 and adjacent another group filter element 910 in same filter element 910, arrange an atomizer 942, this atomizer 942 center overlaps with the intersection point of these four chimney filter 911 center cross spiders.
Above-mentioned filter element 910 is preferably designed to monolithic construction, as shown in Figure 7,8, each chimney filter 911 in each filter element 910 connects as one by the first termination connector 912 and the second termination connector 913, described the first termination connector 912 is provided with respectively the passage 912c with the openend conducting of described each chimney filter 911, the convenience of like this can filter element installing.For example, in Fig. 7,8, the two ends of the first termination connector 912 have a breach 912b, from Fig. 5,6, can find out, in filter element 910 is installed to air film filter 900 time, respectively can be by filter element 910 integral installations below orifice plate 940 by the bolt 950 that is arranged in breach 912b, thus avoid each chimney filter 911 to install separately.In addition, the end face of the first termination connector 912 is also provided with the annular sealing strip 912a that simultaneously surrounds all passage 912c, thereby between the end face to the first termination connector 912 and orifice plate 940, seals after filter element 910 integral installations are below orifice plate 940.
The working method of the air film filter 900 shown in Fig. 4-9 is: when normal filtration, thereby the fan operation being connected with exhaust outlet 921 produces filtration pressure difference in the both sides of filtering material, outside air is from the lateral flows inside of chimney filter 911, airborne dust is filtered film 911a and tackles, filter clean air and enter chimney filter 911 inner chambers, and discharge air film filter 900 by exhaust outlet, the air circulation stream that finally enters into air handling system, the dust of tackling is attached to the surface of filtration membrane 911a; When deashing, by feed liquor house steward 943 to each cleaning fluid conveying pipeline 941 transport cleaning liquid (as running water), water sprays from each atomizer 942, then act on the surface of filtration membrane 911a, because face has smooth, to show as hydrophobicity feature, be collected at water body on face and constantly flow downward and carry after the dust on face finally from chimney filter 911 drippages, play deashing effect.Because water is with atomizing type ejection, on the one hand can the amount of conserving water, face is not formed to fierce flushing on the one hand, thereby maintain the service life of filtering material.
Air film filter 900 as shown in Figure 11-12 comprises equally shell 920 and is arranged on the filter element in shell 920, this shell 920 is fixed on the top of a washer mounting seat 960 by support 930 entirety, filter element is between orifice plate 940 and washer mounting seat 960, between shell 920 and filter element, be connected by orifice plate, filter element comprises the spaced filter element 910 in many groups front and back, each group filter element comprises that many left and right are spaced and an end opening, the chimney filter 911 of other end sealing, the openend of these chimney filters 911 is unified being arranged on orifice plate upwards, blind end unanimously down, the top that is positioned at this orifice plate in air film filter 900 is the pure qi (oxygen) chamber (being made up of shell 920 and orifice plate) that is provided with exhaust outlet 921, being positioned at orifice plate below is the open space unlimited to the external world, described each chimney filter 911 comprises the inner tube layer being made up of porous breathable supporter 911b and is attached to the external tube layer forming on described inner tube outer surface and by described filtration membrane 911a that (porous breathable supporter 911b is described high density porous polyethylene supporter, filtration membrane 911a is described expanded PTFE filtration membrane), the cylindrical shell 952 of one washer 950 is sleeved on shell 920, this cylindrical shell 952 is connected respectively displacement controlling organization with shell 920, this displacement controlling organization comprises the rack and pinion drive mechanism 970 being arranged between cylindrical shell 952 inwalls and shell 920, in the time of pneumatic filter normal filtration cylindrical shell 952 drive by rack and pinion drive mechanism 970 and on move to filter element top, thereby cylindrical shell 952 drives to drop to by rack and pinion drive mechanism 970 and is connected the adaptive cleaning liquid bath 951 that holds filter element that forms with washer mounting seat 960 in the time that filter element is carried out to deashing, clean liquid bath 951 and connect ultrasonic generator, ultrasonic generator is arranged in washer mounting seat 960.Above-mentioned filter element 910 is designed to above-mentioned monolithic construction equally.
The working method of the air film filter 900 shown in Figure 11-12 is: when normal filtration (cylindrical shell 952 drive by rack and pinion drive mechanism 970 and on move to filter element top), thereby the fan operation being connected with exhaust outlet 921 produces filtration pressure difference in the both sides of filtering material, outside air is from the lateral flows inside of chimney filter 911, airborne dust is filtered film 911a and tackles, filter clean air and enter chimney filter 911 inner chambers, and discharge air film filter 900 by exhaust outlet, finally enter into the air circulation stream of air handling system, the dust of tackling is attached to the surface of filtration membrane 911a, when deashing, thereby cylindrical shell 952 drives to drop to by rack and pinion drive mechanism 970 and is connected the adaptive cleaning liquid bath 951 that holds filter element that forms with washer mounting seat 960, inject cleaning fluid (preferred water) by the liquid in-out mouth 953 cleaning on liquid bath 951 to cleaning in liquid bath 951, then start ultrasonic generator, thereby realize the Ultrasonic Cleaning to filter element, after cleaning, by liquid in-out mouth 953, cleaning fluid is discharged and (can be entered in a container and preserve, to reuse), then cylindrical shell 952 rises, and again switches to filtration.
It should be noted that, air film filter 900 also can adopt the structure of the Ultrasonic Cleaning mode shown in spray purge mode and Figure 11-12 that combine shown in Fig. 4-9.Or, can design a kind of filter element washer as shown in figure 10, in this washer, there is the cleaning liquid bath 951 that holds filter element, described cleaning liquid bath 951 connects ultrasonic generator, thereby when needed at least one group of all-in-one-piece filter element 910 disassembling put into the cleaning liquid bath 951 of this filter element washer from the air film filter 900 shown in Fig. 4-9, then inject cleaning fluid by the liquid in-out mouth 953 cleaning on liquid bath 951 to cleaning in liquid bath 951, then start ultrasonic generator, realize the Ultrasonic Cleaning to filter element, after cleaning, by liquid in-out mouth 953, cleaning fluid is discharged, from clean liquid bath 951, take out filter element 910 and again install back air film filter 900.
Claims (8)
1. can spray the pneumatic filter of deashing, comprise shell (920) and be arranged on the filter element in shell (920), described shell (920) is connected and forms the first space and the second space of separation by orifice plate (940) with filter element, the transmission of gas to be filtered occurs in the first space, the transmission of filtering gas occurs in second space, it is characterized in that: described filter element has smooth, to show as hydrophobicity filtration working face; And, spray deashing device for described filtration working face being sprayed to deashing is installed on this pneumatic filter, and the cleaning fluid acting on described filtration working face by the shower nozzle (942) of this spray deashing device when spray deashing departs from from filtering working face after the work of filtration surface current moves and carry its surperficial dust.
2. the pneumatic filter that sprays deashing as claimed in claim 1, it is characterized in that: described filter element comprises the chimney filter (911) of many end openings and other end sealing, the openend of these chimney filters (911) is unified being arranged on orifice plate (940) upwards, blind end unanimously down, the outer surface of each chimney filter (911) is to filter working face, sprays deashing device employing and is positioned at the also shower nozzle (942) of downward loose shape sprinkling of chimney filter (911) side top.
3. the pneumatic filter that sprays deashing as claimed in claim 2, it is characterized in that: comprise at least two groups spaced filter elements in front and back (910), each group filter element (910) comprises the many spaced described chimney filters in left and right (911), in pneumatic filter, be positioned at the top of this orifice plate (940) for being provided with the pure qi (oxygen) chamber of exhaust outlet (921), the below that is positioned at this orifice plate (940) is the open space unlimited to the external world, described spray deashing device comprise be arranged between two groups of filter elements of arbitrary neighborhood (910) and with filter element in the cleaning fluid conveying pipeline be arrangeding in parallel every orientation between left and right (941) of chimney filter (911), on each cleaning fluid conveying pipeline (941), be arranged at intervals with multiple described shower nozzles (942), the input of each cleaning fluid conveying pipeline (941) is connected with feed liquor house steward (943) respectively.
4. the pneumatic filter that sprays deashing as claimed in claim 3, it is characterized in that: between two groups of filter elements of arbitrary neighborhood (910), wherein the each chimney filter (911) in one group of filter element (910) aligns with each chimney filter (911) front and back in another group filter element (910) successively, between two chimney filters (911) that align in adjacent two chimney filters (911) and adjacent another group filter element (910) in same filter element (910), arrange a shower nozzle (942), the center of this shower nozzle (942) overlaps with the intersection point of this four chimney filters (911) center cross spider.
5. the pneumatic filter of the sprayed deashing as described in any one claim in claim 1-4, it is characterized in that: described filter element has by porous breathable supporter (911b) and is attached to the filtering material that the surperficial filtration membrane (911a) of porous breathable supporter (911b) forms, and described filtration membrane (911a) has smooth, to show as hydrophobicity filtration face.
6. the pneumatic filter that sprays deashing as claimed in claim 5, is characterized in that: described porous breathable supporter (911b) is high density porous polyethylene supporter, and described filtration membrane (911a) is expanded PTFE filtration membrane.
7. the pneumatic filter that sprays deashing as claimed in claim 5, is characterized in that: the clearance that described filter membrane is faced the dust of particle diameter >=0.1 μ m in air to be filtered reaches more than 99%.
8. the pneumatic filter of the sprayed deashing as described in any one claim in claim 1-4, it is characterized in that: also comprise back-blowing dust removing device, after the filtration working face of filter element being sprayed to deashing by described spray deashing device, by this back-blowing dust removing device, described filter element is carried out to reverse gas cleaning again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185272.9U CN203816401U (en) | 2014-04-16 | 2014-04-16 | Air filter capable of removing dust in spraying manner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185272.9U CN203816401U (en) | 2014-04-16 | 2014-04-16 | Air filter capable of removing dust in spraying manner |
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| Publication Number | Publication Date |
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| CN203816401U true CN203816401U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420185272.9U Expired - Lifetime CN203816401U (en) | 2014-04-16 | 2014-04-16 | Air filter capable of removing dust in spraying manner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902582A (en) * | 2017-04-28 | 2017-06-30 | 成都瑞柯林工程技术有限公司 | Filter element is installed to rigid member on orifice plate and its filtration is applied |
| CN107866116A (en) * | 2017-11-14 | 2018-04-03 | 南京工业大学 | Crude oil combustion flue gas purification equipment and treatment process for offshore platform |
| CN109893920A (en) * | 2019-03-29 | 2019-06-18 | 江苏久朗高科技股份有限公司 | A kind of high temperature embrane method cleaner for preventing dust bridge to be adhered and operating method |
| CN114177687A (en) * | 2021-10-22 | 2022-03-15 | 中广核研究院有限公司 | Backwashing device and pit filter |
-
2014
- 2014-04-16 CN CN201420185272.9U patent/CN203816401U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902582A (en) * | 2017-04-28 | 2017-06-30 | 成都瑞柯林工程技术有限公司 | Filter element is installed to rigid member on orifice plate and its filtration is applied |
| CN107866116A (en) * | 2017-11-14 | 2018-04-03 | 南京工业大学 | Crude oil combustion flue gas purification equipment and treatment process for offshore platform |
| CN109893920A (en) * | 2019-03-29 | 2019-06-18 | 江苏久朗高科技股份有限公司 | A kind of high temperature embrane method cleaner for preventing dust bridge to be adhered and operating method |
| CN114177687A (en) * | 2021-10-22 | 2022-03-15 | 中广核研究院有限公司 | Backwashing device and pit filter |
| CN114177687B (en) * | 2021-10-22 | 2023-12-26 | 中广核研究院有限公司 | Backwash device and pit filter |
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