CN108692417A - A kind of combined type fresh air filtration system - Google Patents
A kind of combined type fresh air filtration system Download PDFInfo
- Publication number
- CN108692417A CN108692417A CN201810292414.4A CN201810292414A CN108692417A CN 108692417 A CN108692417 A CN 108692417A CN 201810292414 A CN201810292414 A CN 201810292414A CN 108692417 A CN108692417 A CN 108692417A
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- Prior art keywords
- filter
- fresh air
- leaf
- box
- convolution
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of high-efficiency low-resistance combined type fresh air filtration systems, it includes the fresh air filter box (1) being linked in sequence, blast pipe (2), air inlet guide vane (3), leaf filter (4), bag filter (5), convolution filter (6) and discharge pipe (7), outdoor pollution fresh air enters filter box through blast pipe (1), and the interior space is sent into from discharge pipe (7) after leaf filter (4), bag filter (5), convolution filter (6) combination filtering.The combination filter type that the present invention passes through leaf filter, bag filter and convolution filter, dust containing capacity is mainly distributed on the lower leaf filter of the larger resistance of dust containing capacity and bag filter, convolution filter then ensure that the high efficiency filter performance of entire filtration system, to realize the high efficiency filter performance of ultralow resistance, huge energy-saving effect is brought in the process of running.
Description
Technical field
The invention belongs to aeration technology fields, are related to high-efficiency low-resistance combined type fresh air filtration system.
Background technology
In recent years, the whole nation continues haze on a large scale, and PM2.5 concentration is high, and outdoor air pollution is increasingly severe.For
Ensure the air quality from outdoor introducing fresh air, reduces influence of the outdoor haze to indoor particle concentration, cleanliness factor is wanted
Ask higher fresh air system that would generally use fresh air filter device.The widespread practice of fresh air filtering at present is using primary filter
Add high-efficiency HEPA filter, there are certain defects for such filtering technique route:First, dust containing capacity is smaller, need often more
Change or clean strainer;Second is that filtration resistance is big, fresh air system Comparison of the operating energy consumption is high.This filter type is difficult to cope with northern ground
The lasting heavy haze weather in area.
Invention content
The purpose of the present invention is to provide a kind of high-efficiency low-resistance combined type fresh air filtration systems, to solve traditional fresh air filtering
The problem that filtration resistance existing for system is big, dust containing capacity is small overcomes the defect of aforementioned conventional fresh air filtration system.
In order to achieve the above objectives, the technical solution adopted by the present invention is as follows:
A kind of combined type fresh air filtration system comprising fresh air filter box, blast pipe, the air inlet water conservancy diversion leaf being linked in sequence
Piece, leaf filter, bag filter, convolution filter and discharge pipe, outdoor pollution fresh air enter Rose Box through blast pipe
Body is sent into the interior space after leaf filter, bag filter, the filtering of convolution combination of filters from discharge pipe.
Further, under different air particle concentration, the used electrostatic electret filtrate gram weight specification of leaf filter
It is different.
Further, under different air particle concentration, the used electrostatic electret filtrate gram weight specification of bag filter
It is different.
Further, filter size is determined according to design air flow, to control filtering velocity within zone of reasonableness.
Specifically, the height of the fresh air filter box should be no more than 0.3m, hung with ensureing that babinet is easily mounted onto house
In top;Preferably, the babinet cross dimensions should meet sectional wind velocity in babinet and be no more than 2m/s, gentle to control pneumatic noise
Flow resistance power.
Further, the air inlet guide vane is in pairs to anti-radian according to turbulent flow peripheral flow Theoretical Design, avoids new
Wind enters babinet and boundary layer disengaging occurs, and generates vortex, causes drag losses;Preferably, the air inlet guide vane length is suitable
10-15cm ensures that air-flow is uniform.
Further, leaf filter surrounding and fresh air filter box should ensure that sealing is intact, prevent fresh air from board-like mistake
Gap between filter and fresh air filter box penetrates, and reduces system filter efficiency;Preferably, the leaf filter uses electrostatic
Electret filtrate, specification of filter material need 70-150g/m2;Preferably, waveform, wave spacing 3-7cm, wave is made in leaf filter
Height 3-5cm, filtering velocity control is in 1m/s hereinafter, to realize the technology requirement of efficient low-resistance.
Further, bag filter surrounding and fresh air filter box should ensure that sealing is intact, prevent fresh air from pocket type mistake
Gap between filter and fresh air filter box penetrates, and reduces system filter efficiency;Preferably, the bag filter uses electrostatic
Electret filtrate, specification of filter material need 150-200g/m2;Preferably, bag filter cross dimensions is designed according to box sizes, filter bag
Length 20-30cm controls filtering velocity in 0.5m/s hereinafter, to realize the technology requirement of efficient low-resistance.
Further, the convolution filter surrounding and fresh air filter box should ensure that sealing it is intact, prevent fresh air from
Gap between close pleat filter and fresh air filter box penetrates, and reduces system filter efficiency;The convolution filter is using high
Folded filter paper is imitated, filtrate area is according to every square metre of 50m3/ h fresh air volumes calculate.
Further, the combined type fresh air filtration system include fresh air filter box, blast pipe, air inlet guide vane,
Leaf filter, bag filter, convolution filter and discharge pipe;Fresh air filter box is lifted on corridor or close to exterior wall
Local furred ceiling;One end of blast pipe passes through exterior wall to be connected to outdoor, and the opening of the other end and fresh air filter box inlet section connects
It connects;Air inlet guide vane front end closely connect with fresh air filter box inlet section, the lateral film guide vane of rear end with newly
Two sides of wind filter box are tangent;The top/bottom that guide vane is entered the wind perpendicular to fresh air filter box is installed;It is entering the wind
The card slot of three different in width is installed in the downstream side of guide vane, two sides of fresh air filter box successively, leaf filter,
Bag filter, convolution filter are installed in successively in corresponding card slot;One end of discharge pipe is exported with fresh air filter box
The opening of section connects, and the other end passes through pipeline and indoor each regional connectivity;Outdoor pollution fresh air enters Rose Box from blast pipe
Body passes sequentially through leaf filter, bag filter, convolution filter after air inlet guide vane evenly distributes, combined
After filter the interior space is sent into from discharge pipe.
By adopting the above scheme, the beneficial effects of the invention are as follows:
A kind of high-efficiency low-resistance combined type fresh air filtration system shown in the present invention, by leaf filter, bag filter,
The modular filter of convolution filter is ensureing fresh air system high efficiency filter, effectively improves fresh air filtration system appearance
Dust quantity, while system filtration resistance is significantly reduced, bring good energy-saving effect.Concrete analysis is as follows:
(1) solve the problems, such as that traditional fresh air filtration resistance is big.Traditional fresh air filtration system is in order to ensure higher filterability
Can, final stage filters generally use HEPA high efficiency particulate air filters, causes system filtration resistance very big, and quick with dirt increase resistance is held
Rise, system operation energy consumption is huge.Leaf filter, bag filter in fresh air filtration system of the present invention use electrostatic electret
Filtrate, similar electro static filtering trap mechanism, have the advantages that high-efficiency low-resistance, resistance ratios Conventional plate-type filter want small;Secondly, originally
The filtrate area of convolution filter in invention fresh air filtration system is big, almost tens times of HEPA high efficiency particulate air filters, institute
With the filtration resistance of the convolution filter under identical air quantity well below traditional HEPA high efficiency particulate air filters.
(2) solve the problems, such as that traditional fresh air filtering dust containing capacity is small.Leaf filter in traditional fresh air filtration system and
Because filtrate area is small, filter dust containing capacity is extremely restricted HEPA high efficiency particulate air filters.Plate in fresh air filtration system of the present invention
Formula filter is designed using wave, improves media filtration area, compares Conventional plate-type filter, and dust containing capacity has certain increase;
Bag filter and the convolution huge characteristic of filter leaching material area so that system is held dirt characteristic and further increased.It needs to refer to
Go out, the leaf filter and bag filter of fresh air filtration system of the present invention hold dirt component as main, because of electrostatic used
The appearance dirt drag characteristic of electret filtrate (resistance increases slowly with dirt is held) so that system appearance dirt stage resistance increase is slower, has
Good energy-saving potential.In addition, the convolution filter of fresh air filtration system of the present invention is filtered as final stage, through plate-type filtering
After device, bag filter filtering, air particle concentration is very low, and convolution filter is effectively protected, operation resistance
Power increases slow, service life extension.
(3) ensure the strainability of system high efficiency.The leaf filter and bag filter of fresh air filtration system of the present invention
Using electrostatic electret filtrate, filtrate charge is lasting, and (bag filter specification of filter material is higher than leaf filter filtrate for step filtering
Specification), it is ensured that higher filter efficiency;Convolution filter uses High Efficiency Filter Media, filtration grade in H13 or so, into
One step ensure that the high efficiency filter performance of entire filtration system.
Description of the drawings
Fig. 1 is a kind of vertical view of high-efficiency low-resistance combined type fresh air filtration system of the embodiment of the present invention.
Fig. 2 is a kind of front view of high-efficiency low-resistance combined type fresh air filtration system of the embodiment of the present invention.
Reference numeral:Fresh air filter box 1, tank inlet section 1-1, tank outlet section 1-2, body side 1-3, case
Body top surface 1-4, tank floor 1-5, blast pipe 2, air inlet guide vane 3, leaf filter 4, bag filter 5, convolution mistake
Filter 6, discharge pipe 7.
Specific implementation mode
The present invention is described in further detail for illustrated embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of overall schematic of high-efficiency low-resistance combined type fresh air filtration system.Including fresh air filter box
1, blast pipe 2, air inlet guide vane 3, leaf filter 4, bag filter 5, convolution filter 6 and discharge pipe 7.Fresh air mistake
Filter box body 1 is lifted on corridor or the local furred ceiling close to exterior wall.One end of blast pipe 2 passes through exterior wall to be connected to outdoor, the other end
It is connect with the opening of 1 inlet section of fresh air filter box.Enter the wind front end (dense end) and the fresh air filter box 1 of guide vane 3
Inlet section closely connects, and 2, the outside guide vane at rear end (dispersion end) and 2 sides of fresh air filter box 1 are tangent;Into
Wind guide vane 3 is installed perpendicular to the top/bottom of fresh air filter box 1.In the downstream side of air inlet guide vane 3, fresh air mistake
The card slot of 3 different in width, leaf filter 4, bag filter 5, convolution filtering are installed successively in 2 sides of filter box body 1
Device 6 is installed in successively in corresponding card slot.One end of discharge pipe 7 is connect with the opening of 1 Outlet Section of fresh air filter box, another
End passes through pipeline and indoor each regional connectivity.
Outdoor pollution fresh air enters filter box from blast pipe 2, and plate is passed sequentially through after air inlet guide vane 3 evenly distributes
Formula filter 4, bag filter 5, convolution filter 6 are sent into the interior space after combination filtering from discharge pipe 7.
The height of the fresh air filter box 1 should be no more than 0.3m, to ensure that babinet is easily mounted onto in house furred ceiling;Institute
It states babinet cross dimensions and should meet in babinet sectional wind velocity and be no more than 2m/s, to control pneumatic noise and gas-flow resistance.
The air inlet guide vane 3 is in pairs to anti-radian according to turbulent flow peripheral flow Theoretical Design, avoids fresh air into cartonning
Body occurs boundary layer and is detached from, and generates vortex, causes drag losses;The 3 suitable 10-15cm of length of the air inlet guide vane.
The present invention is a kind of high-efficiency low-resistance combined type fresh air filtration system, and the leaf filter in combination filtering can be with
The Uniform Flow for ensureing downstream, makes the bag filter of higher performance and convolution filter uniform filtering, plays a protective role;
And air guide is used primarily to reducing resistance, and the drag losses caused by component parameter differentiation are much smaller than combined type
The resistance of filter element, so guide vane herein uses row industry routine guiding device, it need not be to air guide
Carry out minute design.Turbulent flow cylinder theory belongs to the rudimentary knowledge of fluid profession, based on this theoretical two-way anti-radian water conservancy diversion
Belong to known technology, this is not repeated.
The leaf filter 4 is 70~150g/m using electrostatic electret filtrate, gram weight specification is used2, using wave
Formula pleated structure, by electret to the electrostatic interaction of particulate in air so that the filter efficiency of primary filter is high
In conventional roughing-efficiency plate filter, holding, dirt stage filtration resistance is relatively low.Specification of filter material needs 70-150g/m2;Leaf filter
4 are made waveform, and wave spacing 3-7cm, wave height 3-5cm, filtering velocity control is in 1m/s hereinafter, to realize the skill of efficient low-resistance
Art requirement;4 surrounding of leaf filter and fresh air filter box 1 should ensure that sealing is intact, prevent fresh air from leaf filter 4 with it is new
Gap between wind filter box 1 penetrates, and reduces system filter efficiency.
It is 150~200g/m that the bag filter 5, which uses electrostatic electret filtrate, gram weight specification,2, bag filter 5
Cross dimensions is designed according to box sizes, filter bag length 20-30cm, filtering velocity is controlled in 0.5m/s hereinafter, efficiently low to realize
The technology requirement of resistance;After the primary filtering of roughing-efficiency plate filter, gram weight specification is 150~200g/m2Pocket type mistake
Filter can filter out 90% or more particulate matter.So that the dust containing capacity of the convolution filter of final stage 6 is reduced to original 10%, pole
The service life of convolution filter is extended greatly.
5 surrounding of bag filter and fresh air filter box 1 should ensure that sealing it is intact, prevent fresh air from bag filter 5 with
Gap between fresh air filter box 1 penetrates, reduces system filter efficiency.
The convolution filter 6 uses H13 highly-efficient glass fiber filter papers, carries out intensive wave and is folded into fold shape,
Folded filter paper height is not less than the 1/10 of entire convolution filter thickness;Filtrate area is according to every square metre of 50-60m3/ h is new
Wind Coverage Calculation controls filtering velocity in 1.5cm/s hereinafter, forming the technological core of high-efficiency low-resistance, and guarantee PM2.5 filter efficiencies reach
99% or more;6 surrounding of convolution filter and fresh air filter box 1 should ensure that sealing is intact, prevent fresh air from close pleat filter 6
Gap between fresh air filter box 1 penetrates, reduces system filter efficiency.
Fresh air to be filtered ensure that entire fresh air finally by convolution filter 6, filtration grade in H13 or so
The high efficiency filter performance of filtration system.According to convolution filter filtering velocity design requirement, convolution filter under identical air quantity
Filtration resistance is well below traditional HEPA high efficiency particulate air filters.Fresh air by filtering is sent into building, and major part can be met
Building such as high-grade office building, high-end residential, high-grade hotel are under high haze outdoor environment to the purity requirements of room air.This
Kind high-efficiency low-resistance combined type fresh air filtration system can be used for new wind turbine filtration system and indoor air purification filtration system.Pass through plate
It is larger to be mainly distributed on dust containing capacity by the combination filter type of formula filter, bag filter and convolution filter for dust containing capacity
The lower leaf filter of resistance and bag filter, convolution filter then ensure that the high efficiency filter of entire filtration system
Can, to realize the high efficiency filter performance of ultralow resistance, huge energy-saving effect is brought in the process of running.
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to implementations here
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (7)
1. a kind of combined type fresh air filtration system, it is characterised in that:It includes the fresh air filter box (1) being linked in sequence, air inlet
(2), air inlet guide vane (3), leaf filter (4), bag filter (5), convolution filter (6) and discharge pipe (7) are managed,
Outdoor pollution fresh air enters filter box through blast pipe (1), through leaf filter (4), bag filter (5), convolution filtering
After device (6) combination filtering the interior space is sent into from discharge pipe (7).
2. combined type fresh air filtration system as described in claim 1, it is characterised in that:The height of the fresh air filter box (1)
Degree should be no more than 0.3m, to ensure that babinet is easily mounted onto in house furred ceiling;Preferably, the babinet cross dimensions should meet case
Internal sectional wind velocity is no more than 2m/s, to control pneumatic noise and gas-flow resistance.
3. combined type fresh air filtration system as described in claim 1, it is characterised in that:Air inlet guide vane (3) basis
Turbulent flow peripheral flow Theoretical Design is in pairs to anti-radian, avoids fresh air from entering babinet and boundary layer disengaging occurs, generate vortex, cause
Drag losses;Preferably, air inlet guide vane (3) the suitable 10-15cm of length ensures that air-flow is uniform.
4. combined type fresh air filtration system as described in claim 1, it is characterised in that:Leaf filter (4) surrounding and fresh air
Filter box (1) should ensure that sealing is intact, prevent gap of the fresh air between leaf filter (4) and fresh air filter box (1) from wearing
Thoroughly, system filter efficiency is reduced;Preferably, the leaf filter (4) uses electrostatic electret filtrate, specification of filter material to need 70-
150g/m2;Preferably, waveform is made in leaf filter (4), and wave spacing 3-7cm, wave height 3-5cm, filtering velocity, which controls, to exist
1m/s is hereinafter, to realize the technology requirement of efficient low-resistance.
5. combined type fresh air filtration system as described in claim 1, it is characterised in that:Bag filter (5) surrounding and fresh air
Filter box (1) should ensure that sealing is intact, prevent gap of the fresh air between bag filter (5) and fresh air filter box (1) from wearing
Thoroughly, system filter efficiency is reduced;Preferably, the bag filter (5) uses electrostatic electret filtrate, specification of filter material to need 150-
200g/m2;Preferably, bag filter (5) cross dimensions is designed according to box sizes, filter bag length 20-30cm, by filtering velocity control
It makes in 0.5m/s hereinafter, to realize the technology requirement of efficient low-resistance.
6. combined type fresh air filtration system as described in claim 1, it is characterised in that:Convolution filter (6) surrounding
It should ensure that sealing is intact with fresh air filter box (1), prevent fresh air between close pleat filter (6) and fresh air filter box (1)
Gap penetrates, and reduces system filter efficiency;The convolution filter (6) is folded using High Efficiency Filter Media, and filtrate area is according to every
Square metre 50m3/ h fresh air volumes calculate.
7. combined type fresh air filtration system as described in claim 1, it is characterised in that:Including fresh air filter box (1), air inlet
Manage (2), air inlet guide vane (3), leaf filter (4), bag filter (5), convolution filter (6) and discharge pipe (7);
Fresh air filter box (1) is lifted on corridor or the local furred ceiling close to exterior wall;One end of blast pipe (2) passes through exterior wall to connect with outdoor
Logical, the other end is connect with the opening of fresh air filter box (1) inlet section;The front end and fresh air for entering the wind guide vane (3) are filtered
Babinet (1) inlet section closely connects, outside (2) the piece guide vane of rear end and two side phases of fresh air filter box (1)
It cuts;The top/bottom that guide vane (3) is entered the wind perpendicular to fresh air filter box (1) is installed;Under air inlet guide vane (3)
Side is swum, the card slot of three different in width, leaf filter (4), pocket type mistake are installed in two sides of fresh air filter box (1) successively
Filter (5), convolution filter (6) are installed in successively in corresponding card slot;One end of discharge pipe (7) and fresh air filter box
(1) the opening connection of Outlet Section, the other end pass through pipeline and indoor each regional connectivity;Outdoor pollution fresh air is from blast pipe (2)
Into filter box, passed sequentially through after air inlet guide vane (3) evenly distributes leaf filter (4), bag filter (5),
Convolution filter (6) is sent into the interior space after combination filtering from discharge pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292414.4A CN108692417A (en) | 2018-04-03 | 2018-04-03 | A kind of combined type fresh air filtration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292414.4A CN108692417A (en) | 2018-04-03 | 2018-04-03 | A kind of combined type fresh air filtration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108692417A true CN108692417A (en) | 2018-10-23 |
Family
ID=63844789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810292414.4A Pending CN108692417A (en) | 2018-04-03 | 2018-04-03 | A kind of combined type fresh air filtration system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108692417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013879A (en) * | 2022-07-22 | 2022-09-06 | 中国建筑西南设计研究院有限公司 | Filtering method and filtering device for air return opening of fan coil |
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Application publication date: 20181023 |