CN104801113A - High efficiency air filtering and purifying material - Google Patents
High efficiency air filtering and purifying material Download PDFInfo
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- CN104801113A CN104801113A CN201410042146.2A CN201410042146A CN104801113A CN 104801113 A CN104801113 A CN 104801113A CN 201410042146 A CN201410042146 A CN 201410042146A CN 104801113 A CN104801113 A CN 104801113A
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Abstract
The invention relates to a high efficiency air filtering and purifying material. The material includes polymer fibers with abnormal cross section, and has the characteristics of high dust containing capacity and low airflow resistance, the filtering efficiency of the material on inhalable suspension particles with the particle size of above 0.3[mu]m in air reaches above 99.9%, the atmospheric bacterial filtering efficiency reaches 100%, and the airflow initial resistance under an air quantity of 1500m<3>/h is smaller than 50Pa, so the material can simultaneously substitute middle efficiency filtration and high efficiency filtration in present air filtration, and reduces the structure cost and the energy consumption of a relevant ventilation system on the premise that a same filtering effect is reached.
Description
Technical field
The invention belongs to building air conditioning HVAC to ventilate and field of environment protection, relate to the air draught filtration, purification material of the new and effective low vapour lock of a class.
Background technology
Improving constantly along with scientific and technological living standard at present; simultaneously to the carelessness of environmental protection; air quality Chinese and all over the world is continuous worsening; haze (PM0.3 ~ PM10 pellet in air seriously exceeds standard) phenomenon occurs again and again; degree increases the weight of day by day, creates serious harmful effect to the physical and mental health of people and Working Life.
The nucleus equipment that in the equipment such as air cleaner is air-conditioning, HVAC, VMC, air purification portion is divided, by air cleaner, can eliminate the various suspensions in outside air and room air, to ensure indoor air quality.Filter forms resistance to air, and along with the increase of filter laying dust, filter resistance will along with increase.When filter laying dust is too many, resistance is too high, and filter will be made to be reduced by air quantity, or filter local is penetrated, so when filter resistance increases to a certain setting, filter will be scrapped.The quality of the air filtration scavenging material performance therefore in filter directly has influence on performance and the service life of air cleaner.
Air cleaner is broadly divided into roughing efficiency air filter, medium effeciency filter, high efficiency particulate air filter.Wherein roughing efficiency air filter is mainly used in dust and the foreign matter of filtration more than 5 ~ 10 μm, and its initial resistance is generally at about 10 ~ 50Pa, and whole resistance is at about 80-200Pa.Mainly contain board-like, collapsible, pocket type three kinds of patterns, outer frame material has paper frame, aluminium frame, zinc-plated chase, and filtering material has non-woven fabrics, nylon wire, activated carbon filter material, metal hole pattern etc., and protection network has two-sided plastic-blasting wire netting and double side zinc coating wire netting.The thick roughing efficiency air filter replacement cycle was at about 1-3 month.
Medium effeciency filter, be mainly used in trapping the particle dust of 1-5 μm and various suspension, its initial resistance is at about 50-90Pa, and whole resistance is at about 250-300Pa.General medium effeciency filter selects diameter to be the material such as glass fibre, polyethylene foam material, acrylic fibers, polypropylene fibre, terylene of about 10 μm.And in order to improve filter efficiency and process air quantity, based on drawer type or bag type filter elements.The medium effeciency filter replacement cycle was at about 3-6 month.
High efficiency particulate air filter, is mainly used in the various suspensions of filtration 0.3 ~ 1 μm, and its initial resistance General Requirements≤220Pa, whole resistance is at about 400-600Pa.High efficiency particulate air filter is mainly used in the air-conditioning HVAC environment of ultra-clean requirement, generally as filtering use eventually, take polytetrafluoroethylene fibre as main filtration material.Replacement cycle was at about 6-18 month.High efficiency particulate air filter price is high, and common air-conditioning and new wind devices seldom use, and the particle being deposited on fiber surface can produce electrostatic screen effect, can reduce filter efficiency.
From the above, for solving current Air haze (mainly suspended particulate substance can be sucked based on the PM0.3 ~ PM10) impact on indoor air quality, middle effect even high efficiency particulate air filter must be used.But medium effeciency filter initial resistance is at least at more than 50Pa, and along with continuous use, gas-flow resistance is constantly strengthened, and can reach about 400Pa.Therefore medium effeciency filter is used, although indoor air quality can be improved to a certain extent, but gas-flow resistance makes it be applied in the equipment such as current air-conditioning, HVAC, VMC, the series of problems such as equipment noise increases, systematic energy efficiency ratio increases, the increase of blower fan power consumption, the reduction of room air flow will be caused.
On the other hand, if use high efficiency particulate air filter, just must need, by just to imitate and medium effeciency filter is protected, otherwise the service life of high efficiency particulate air filter can be had influence on.Filtration system total air flow resistance, raising equipment and maintenance cost must be increased thus.
In sum, current air cleaner can solve PM0.3 ~ PM10 in air can suck the filtration, purification of suspended particulate substance, but due to the restriction of air filtration scavenging material, use dust containing capacity is low, resistance to suction is large, the life-span is short, and cause the series of problems such as equipment noise increases, systematic energy efficiency ratio increases, the increase of blower fan power consumption, the reduction of room air flow after there is use air cleaner, be not suitable for general comfort air conditioning system, HVAC and VMC.
Summary of the invention
The object of the present invention is to provide a kind of air filtration scavenging material efficiently.
A first aspect of the present invention, provides a kind of air filtration scavenging material, and described air filtration scavenging material comprises the polymer fiber with odd-shaped cross section.
In another preference, described air filtration scavenging material also comprises the polymer fiber being selected from lower group: doughnut, circular fiber, ring-type or core-skin fibre.
In another preference, described polymer is selected from: one or more the mixture in polypropylene, PLA, cellulose acetate, polysulfones, polyether sulfone, polyvinyl alcohol, polyvinyl chloride, polyarylsulfone (PAS), polyester or two or more copolymers.
In another preference, described odd-shaped cross section is the mixing of one or more in C type cross section, V-type cross section, H type cross section, trifolium-shaped cross section, T-shaped cross section.
In another preference, the fiber number of described polymer fiber is 0.2 ~ 10 dtex dtex.
In another preference, the length of described polymer fiber is 100 microns ~ 100 millimeters.
In another preference, described air filtration scavenging material comprises the polymer fiber that 10wt%-100wt% has odd-shaped cross section, with the total weight of described air filtration scavenging material.
A second aspect of the present invention, the preparation method of the air filtration scavenging material described in first aspect is provided, described method comprise adopt water acupuncture manipulation, step that the polymer fiber with odd-shaped cross section is made described air filtration scavenging material by meltblown, needle point method, spun-bond process, Hot rolling, paper process.
A third aspect of the present invention, provides a kind of air cleaner, comprises the air filtration scavenging material described in first aspect.
A fourth aspect of the present invention, provides a kind of goods, and described goods are made up of the air filtration scavenging material described in first aspect.
In another preference, described air filtration scavenging material is non-woven fabrics form.
Efficient low vapour lock air filtration scavenging material of the present invention, effective Adsorption can be carried out to the sucked suspended particulate substance of PM0.3 ~ PM10 in air (overall suspended pellet refers to the general name of floating aerial solid-state and liquid particles thing), have the advantages that filter efficiency is high, dust containing capacity is high, gas-flow resistance is low.Use material involved in the present invention, the medium air filtration in current air filtration and high efficiency filter can be replaced simultaneously, under the prerequisite reaching identical filter effect, reduce associated airway system architecture cost and energy consumption.
Should be understood that within the scope of the present invention, above-mentioned each technical characteristic of the present invention and can combining mutually between specifically described each technical characteristic in below (eg embodiment), thus form new or preferred technical scheme.As space is limited, tiredly no longer one by one to state at this.
Accompanying drawing explanation
Fig. 1 is the air filtration scavenging material entrapped air contamination particle schematic diagram that C type cross-section fibers is made.
Fig. 2 is the schematic cross-section of C type cross-section fibers.
Fig. 3 is the schematic cross-section of T-shaped cross-section fibers.
Fig. 4 is the schematic cross-section of H type cross-section fibers.
Fig. 5 is the schematic cross-section of V-type cross-section fibers.
Detailed description of the invention
Present inventor is through extensively and in depth studying, unexpected discovery first comprises the air filtration scavenging material of the polymer fiber with odd-shaped cross section, effective Adsorption can be carried out to the sucked suspended particulate substance of PM0.3 ~ PM10 in air, have the advantages that filter efficiency is high, dust containing capacity is high, gas-flow resistance is low, the medium air filtration in current air filtration and high efficiency filter can be replaced simultaneously.On this basis, the present invention is completed.
Polymer fiber and air filtration scavenging material
Fiber refers to the material be made up of continuous or discrete filament.Typical circular, hollow and profiled filament and ring-type or core-skin fibre is had by face form.
Profiled filament refers to and also claims " profiled fibre " by the chemical fibre with special cross section shape that the spinneret orifice through certain geometry (non-round) spins.Profiled filament is for circular fiber, and it is normally with there being the spinneret hole of particular geometry to squeeze out, and makes cross section be the fiber of certain geometrical shape.
In the present invention, profiled filament, profiled fibre, the fiber with odd-shaped cross section and the polymer fiber with odd-shaped cross section have identical implication.The cross section of the profiled filament adopted in the present invention is the cross section do not closed, as the mixing of one or more in the fiber in C type cross section, V-type cross section, H type cross section, trifolium-shaped cross section, T-shaped cross section.
The degree of fiber thickness, usually represent by the weight of certain length fiber, fiber number refers under official regain, 9000 meters of ponderable grams of fiber institute tool, namely as, when the fibre weight of 9000 meters long is one gram, be called 1D.Dtex is dtex, refers to the grams of the fibre bundle that ten thousand metres are long, and fiber is thinner, and fiber number is less.
Polymer fiber in the present invention is preferably one or more mixture in polypropylene, PLA, cellulose acetate, polysulfones, polyether sulfone, polyvinyl alcohol, polyvinyl chloride, polyarylsulfone (PAS), polyester or two or more copolymers.
The preparation method in the present invention with the polymer fiber of odd-shaped cross section has no particular limits, the polymer fiber with odd-shaped cross section adopting various method known in the art to prepare all can be used in the present invention, as adopted C type spinning head, being made the polymer fiber with C type cross section by melt spinning or solution-polymerized SBR.
Air filtration scavenging material of the present invention, comprises the polymer fiber with odd-shaped cross section, can also comprise the polymer fiber being selected from lower group: doughnut, circular fiber, ring-type or core-skin fibre.In another preference, air filtration scavenging material of the present invention is made up of the polymer fiber with odd-shaped cross section.In another preference, air filtration scavenging material of the present invention, except containing having except the polymer fiber of odd-shaped cross section, also contains one or more the combination in doughnut, circular fiber, ring-type or core-skin fibre.
Air filtration scavenging material of the present invention can be non-woven fabrics form, preparation method has no particular limits, and adopts existing known any means to make the air filtration scavenging material of non-woven fabrics form the polymer fiber and optional doughnut, circular fiber, ring-type or core-skin fibre with odd-shaped cross section.The method being selected from lower group is such as adopted to prepare air filtration scavenging material: water acupuncture manipulation, meltblown, needle point method, spun-bond process, Hot rolling, paper process.
As shown in Figure 1, for the high-efficiency air filtering scavenging material that the polymer fiber in C type cross section is made, because profiled fibre specific area is large, with can effectively catching and store the fibrous inside hemi-closure space of PM0.3-PM10, the air pollution particle retained does not enter interfibrous gas barrier air-flow, ensure that the filter efficiency of the efficient PM2.5 of the filter medium of formation and low suction drag.
In the present invention, the preparation method of air cleaner has no particular limits, and adopts the method for prior art to be assembled in air cleaner by air filtration scavenging material of the present invention.
The above-mentioned feature that the present invention mentions, or the feature that embodiment is mentioned can be combined.All features that this case description discloses can with any composition forms and use, each feature disclosed in description, anyly can be provided identical, alternative characteristics that is impartial or similar object replaces.Therefore apart from special instruction, the feature disclosed is only general example that is impartial or similar features.
Usefulness of the present invention is:
(1) the invention provides a kind of novel air filtration scavenging material.
(2) air filtration scavenging material of the present invention can carry out effective Adsorption to the sucked suspended particulate substance of PM0.3 ~ PM10 in air, and filter efficiency reaches more than 99.9%.
(3) the bacteriological filtration efficiency of air filtration scavenging material of the present invention to air bacterium reaches 100%, 1500m
3under the air quantity condition of/h, air-flow initial resistance is less than 50Pa.
(4) air filtration scavenging material of the present invention has the advantages that filter efficiency is high, dust containing capacity is high, gas-flow resistance is low, the medium air filtration in current air filtration and high efficiency filter can be replaced simultaneously, under the prerequisite reaching identical filter effect, reduce associated airway system architecture cost and energy consumption.
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, the usually conveniently conditioned disjunction condition of advising according to manufacturer.Unless otherwise indicated, otherwise percentage and number calculate by weight.
Unless otherwise defined, all specialties used in literary composition and scientific words and one skilled in the art the meaning be familiar with identical.In addition, any method similar or impartial to described content and material all can be applicable in the inventive method.The use that better implementation method described in literary composition and material only present a demonstration.
In the present invention, can suck suspended particulate substance filter efficiency and gas-flow resistance, testing standard is with reference to GB/T14295-2008 air cleaner and GB_T6165-2008 high efficiency particle air filter method for testing performance efficiency and resistance; The bacteriological filtration efficiency of air bacterium, testing standard is with reference to CNS14775-2003 medical mask material bacteria Filtration Efficiency Test.
Embodiment 1
Be raw material with PLA, make C type cross-section fibers, cross section as shown in Figure 1, fiber number 5dtex.Single fiber length is about 2mm, and this fibers with profiled section is made air filtration nonwoven cloth material by water acupuncture manipulation.
Make air cleaner with above-mentioned material, test can suck suspended particulate substance filter efficiency to PM0.3 ~ PM10 and reach 99.8%, the bacteriological filtration efficiency of air bacterium reaches 100%, 1500m
3under the air quantity condition of/h, air-flow initial resistance 20Pa.
Under the same terms, test current commercial high efficiency particle air filter, filter efficiency reaches 99.9%, air-flow initial resistance 150Pa.
Embodiment 2
Take polypropylene as raw material, make T-shaped and H type cross-section fibers respectively, fiber number 0.5dtex, cross section as shown in Figures 2 and 3.Two kinds of fibers with profiled section are made air filtration nonwoven cloth material by meltblown by single fiber length 5mm.
Make air cleaner with above-mentioned material, test can suck suspended particulate substance filter efficiency to PM0.3 ~ PM10 and reach 99.9%, the bacteriological filtration efficiency of air bacterium reaches 100%, 1000m
3under the air quantity condition of/h, air-flow initial resistance 40Pa.
Under the same terms, test current commercial high efficiency particle air filter, filter efficiency reaches 99.9%, air-flow initial resistance 120Pa.
Embodiment 3
Be raw material with cellulose acetate, make V-type cross-section fibers, cross section as shown in Figure 4, fiber number 2dtex.Single fiber length 10mm, and it is made air filtration nonwoven cloth material by water acupuncture manipulation together with general fibre.
Make air cleaner with above-mentioned material, test can suck suspended particulate substance filter efficiency to PM0.3 ~ PM10 and reach 99.5%, the bacteriological filtration efficiency of air bacterium reaches 100%, 2000m
3under the air quantity condition of/h, air-flow initial resistance 45Pa.
Under the same terms, test current commercial high efficiency particle air filter, filter efficiency reaches 99.8%, air-flow initial resistance 180Pa.
The all documents mentioned in the present invention are quoted as a reference all in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after having read above-mentioned instruction content of the present invention.
Claims (10)
1. an air filtration scavenging material, is characterized in that, described air filtration scavenging material comprises the polymer fiber with odd-shaped cross section.
2. air filtration scavenging material as claimed in claim 1, it is characterized in that, described air filtration scavenging material also comprises the polymer fiber being selected from lower group: doughnut, circular fiber, ring-type or core-skin fibre.
3. air filtration scavenging material as claimed in claim 1 or 2, it is characterized in that, described polymer is selected from: one or more the mixture in polypropylene, PLA, cellulose acetate, polysulfones, polyether sulfone, polyvinyl alcohol, polyvinyl chloride, polyarylsulfone (PAS), polyester or two or more copolymers.
4. air filtration scavenging material as claimed in claim 1, it is characterized in that, described odd-shaped cross section is the mixing of one or more in C type cross section, V-type cross section, H type cross section, trifolium-shaped cross section, T-shaped cross section.
5. air filtration scavenging material as claimed in claim 1, it is characterized in that, the fiber number of described polymer fiber is 0.2 ~ 10dtex.
6. air filtration scavenging material as claimed in claim 1, it is characterized in that, the length of described polymer fiber is 100 microns ~ 100 millimeters.
7. air filtration scavenging material as claimed in claim 1, it is characterized in that, described air filtration scavenging material comprises the polymer fiber that 10wt%-100wt% has odd-shaped cross section, with the total weight of described air filtration scavenging material.
8. the preparation method of the air filtration scavenging material as described in any one of claim 1-7, it is characterized in that, described method comprise adopt water acupuncture manipulation, step that the polymer fiber with odd-shaped cross section is made described air filtration scavenging material by meltblown, needle point method, spun-bond process, Hot rolling, paper process.
9. an air cleaner, is characterized in that, described air cleaner comprises the air filtration scavenging material described in any one of claim 1-7.
10. goods, is characterized in that, described goods are made up of the air filtration scavenging material described in any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042146.2A CN104801113A (en) | 2014-01-28 | 2014-01-28 | High efficiency air filtering and purifying material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042146.2A CN104801113A (en) | 2014-01-28 | 2014-01-28 | High efficiency air filtering and purifying material |
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| CN104801113A true CN104801113A (en) | 2015-07-29 |
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| CN201410042146.2A Pending CN104801113A (en) | 2014-01-28 | 2014-01-28 | High efficiency air filtering and purifying material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722752A (en) * | 2018-12-27 | 2019-05-07 | 北京光华纺织集团有限公司 | It is a kind of for weaving the combination yarn and denim of soft wear-resisting polychrome denim |
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