CN207126375U

CN207126375U - A kind of multifunctional air purifying screen pack

Info

Publication number: CN207126375U
Application number: CN201720797861.6U
Authority: CN
Inventors: 吴仁香; 郑煜铭; 钟鹭斌; 陈江萍
Original assignee: Institute of Urban Environment of CAS
Current assignee: Institute of Urban Environment of CAS
Priority date: 2017-07-04
Filing date: 2017-07-04
Publication date: 2018-03-23
Anticipated expiration: 2027-07-04

Abstract

The utility model discloses a kind of multifunctional air purifying screen pack, including primary filter module, HEPA filtering modules, gas absorption and catalytic degradation module.Multi-module structure sets linking to be fixed into an integral filter net from outside to inside successively, can be to the fine particle in environment（PM_2.5）, bacterium, the particulate pollutant such as virus effectively intercepted, the gaseous contaminants such as PARA FORMALDEHYDE PRILLS(91,95), ozone, toluene carry out thoroughly decompose, purify, can also deodorization, it is antibacterial, sterilization, it is to integrate the multifunctional air purifying screen pack as the whole body such as air filtration, purification, antibacterial, and windage is small, service life is long, stability is good, had great application prospect in air purifier, this kind of air cleaning unit of VMC, and preparation cost is low, and large-scale continuous production can be achieved.

Description

A kind of multifunctional air purifying screen pack

Technical field

The utility model belongs to field of air filtration, and in particular to a kind of multifunctional air purifying screen pack.

Background technology

In recent years, as Rapid-Urbanization and industrialized development, air pollution are own through turning into current China's main environment One of problem, or even the preferable southern area of air regime also attack by haze frequently.Major pollutants in haze are fine graineds Thing（PM_2.5）, refer to the particulate matters of equivalent aerodynamic diameter≤2.5 μm.Haze induces breathing problem, triggers heart and brain The harm such as vascular diseases, the cancered risk of increase have obtained social consensus.When haze sky occurs, room air is also escaped not open PM_2.5Injury.According to the research report of Tsing-Hua University, when outdoor PM2.5 concentration reaches more than slight pollution, itself and interior PM_2.50.65-0.80 proportionate relationship be present in concentration.Because the gap of door and window and exterior wall will be far longer than the straight of particulate matter Footpath, the passage that outdoor particulate is got in can be turned into.At the same time, indoor environment also has the discharge of oil smoke, second-hand-cigarette etc., indoor Suspended particulate can exceed outdoor 60 times in air.Secondly, with the development and the improvement of people's living standards of national economy, people More and more higher is required to interior decoration, the application of various chemical materials, chemical products increasingly increases, and room air is faced with volatilization The pollution of property organic gas.Along with second-hand-cigarette, various fumes peculiar smells etc. pollute so that pollution of indoor environment becomes more next It is severeer.The sampling data detection that association is decorated according to Chinese architecture shows that the average exceeding standard rate of formaldehyde of new clothes house is 70%- The average exceeding standard rate of 80%, TVOC is 75%.2-3 times more serious than outdoor air pollution degree of room air pollution degree, some are serious In the case of possibly even reach more than 100 times.Furthermore normal adult human will breathe 15~20m in one day³Air, when people breathe, exhale Containing having more than 1800 kinds of bacteriums in the gas gone out, but due to indoor temperature, humidity it is suitable, these bacteriums are easier to grow, very Virus can extremely be grown.In addition, running can discharge ozone to indoor various electrical equipment for a long time, cause ozone exceeded, cause secondary pollution. Great mass of data confirm, room air pollution degree is even more serious than atmosphere pollution, indoor environmental pollution turn into after smoke pollution, The third-largest pollution mode of photochemical pollution.

Modern life and the time being operated in indoor environment have reached the 80%~90% of whole day, big among all one's life of people The time that there are about 3/4ths is all spent indoors, is far longer than outdoor with the time of contact of indoor environmental pollution thing, because The quality of this indoor environmental quality directly affects health, life and the work quality of people.

Indoor environmental pollution can cause sick buildings thing syndrome (SBS), building related diseases (BRI), trigger infant Leukaemia, asthma, birth defect, heart disease, intelligence development etc..Because the respiratory capacity of children is higher than being grown up by weight ratio 50%, and the time of children life indoors is long, so children are more vulnerable to the harm of room air pollution than adult. US Experts detection finds that more than 500 kinds of volatile organic matter in air indoors be present, wherein carcinogen just has kind more than 20, Causative virus kind more than 200.The World Health Organization (WHO) confirms that formaldehyde is carcinogenic, induces leukemia of children.BJ Children's Hospital Data are shown, finishing was once made within half a year in 90% leukemia children man.Ozone (O₃) it is one easily ignored invisible Killer, influence that can be different degrees of to generations such as the skin of human body and nervous systems, additionally it is possible to insulting immunity function, Cause lymphocyte that chromosome lesion occurs, accelerate the aging of human body, cause the birth rate of deformed child to increase.The World Health Organization Provide, the concentration of ozone is no more than 0.1 ppm in the 8 hours environment that continuously work.China Association for Standardization's investigation display, 68% Disease be due to that indoor pollution causes.WHO also illustrates that the annual whole world about more than 400 ten thousand people die from interior Air pollution.

Contaminated indoor environment is tackled, people can purify Interior Space by opening air purifier or VMC Gas.These air cleaning units are required for screen pack to carrying out filtration, purification by the gas of equipment.But existing screen pack pair PM_2.5The poor filtration effect of fine particle, and the blocking of particulate matter is subject to, serious life time decay phenomenon be present.Over time Passage, filter effect will be very little.Meanwhile the function of screen pack is single, most screen pack only has to particulate matter There is filter effect, rarely screen pack can possess detergent power by the gaseous contaminant such as PARA FORMALDEHYDE PRILLS(91,95), toluene, ozone simultaneously, there is antibacterial The screen pack of antibacterial function is less.In addition, existing airstrainer is all single entirety, once some positions it is dirty or certain A little functions do not work can only overall pulling down change, so not only cause the wasting of resources, and improve use cost.In order to overcome The defects of prior art, it is more that the utility model provides that a kind of filter efficiency is high, resistance is low, energy consumption is low, purification function is more powerful Module cleaning filtration screen of air.

The content of the invention

The utility model is arranged on air purifier or VMC air inlet, can be to the PM in environment_2.5, it is thin The particulate pollutants such as bacterium, virus are effectively intercepted, the gaseous contaminant such as PARA FORMALDEHYDE PRILLS(91,95), ozone, toluene carry out thoroughly decompose, Purification, moreover it is possible to deodorization, antibacterial, sterilization, final purification room air, or clean air is sent into room by VMC pipeline It is interior, indoor pollution air is discharged into outdoor again while diluting indoor air pollutants.

To achieve the above object, the utility model adopts the following technical scheme that：

A kind of multifunctional air purifying screen pack, including primary filter module, HEPA (High Efficiency Particulate Air Filter) filtering module and gas adsorption modules, formaldehyde catalytic degradation is provided with gas adsorption modules Module and ozone catalytic degraded module, HEPA filtering modules are by the Electrospun nano-fibers composite membrane with antibacterial bacteriostatic performance Composition.

As further preferably one of, the housing of described primary filter module uses Moisture-proof water-resistant magma wood-fibred cardboard Combined with metal phase, filtering material is used compared with electrostatic cotton nonwoven fabrics, nylon wire or metal hole pattern of coarse fiber diameter etc.；Housing is easy Change, recycling capable of washing, save operating cost；The primary filter net resistance is low, dust containing capacity is big, is mainly used in larger dust The pre-filtering of particle, mosquito etc..

As further preferred two, the antibacterial bacteriostatic Electrospun nano-fibers membrane structure of composition HEPA filtering modules can Control, preferably multi-level structure, contain antibacterial bacteriostatic composition in fiber.

Optionally, the antibiotic bacteriostat in described antibacterial bacteriostatic Electrospun nano-fibers film be chitosan, chitin, Tea Polyphenols, Ag systems metal ion type, TiO₂Photocatalyst-type, quaternary ammonium salt, double arc classes, organic metal class, one kind of phenyl amines or It is a variety of.

Optionally, the polymeric material of described Electrospun nano-fibers film be polyester, polyacrylonitrile, Nomex, Polyurethane, polyether sulfone, polymethyl methacrylate, Kynoar, polystyrene, nylon 6, nylon66 fiber, polyvinylpyrrolidine One or more in ketone.

Optionally, the basalis of described antibacterial bacteriostatic Electrospun nano-fibers composite membrane be fusion spray cloth, it is spinning building, quiet The molding mode of one or more in electric cotton, described Electrospun nano-fibers film and basalis is hot pressing, suture or super Sound is compound, then the screen pack of certain size is formed through giving a discount, and is fixed with frame made of aluminum profiles bound edge.

As further preferred three, described gas adsorption modules are made up of coconut husk activated carbon honeycomb sieve plate layer, should Filter layer is using the plastic honeycomb of hexagon or circular pore structure, and honeycomb plate thickness is 1-6cm, the filling of unit volume sieve plate It is 1-2 layers to measure as 0.2-10g/cm3, the sieve plate number of plies.

Preferably, described formaldehyde catalytic degradation module by carried noble metal TiO₂Catalyst and carrier composition, can be The efficient catalytic, degradable of PARA FORMALDEHYDE PRILLS(91,95) is realized under normal temperature, and no coupling product produces；Described ozone catalytic degraded module by Manganese oxide catalyst and carrier composition, high ozone catalytic activity can be kept in high humidity environment, is realized to the complete of ozone Degradable.

Alternatively, described formaldehyde and the carrier material of ozone catalyst are ceramic honey comb or pellets.

Preferably, the primary filter module, HEPA filtering modules, gas absorption and catalytic degradation module through aluminium section bar or Plastic frame bound edge sets linking to be fixed into an integral filter net from outside to inside successively, and screen pack body can be annular, circle Or plank frame.Remarkable advantage of the present utility model is：The multifunctional air purifying screen pack can be to the PM in environment_2.5、 The particulate pollutants such as bacterium, virus are effectively intercepted, and the gaseous contaminant such as PARA FORMALDEHYDE PRILLS(91,95), ozone, toluene is thoroughly divided Solution, purification, can also deodorization, antibacterial, sterilization, collection air filtration, purification, antibacterial etc. is all over the body, and windage is small, service life Length, stability are good, are had great application prospect in air purifier, this kind of air cleaning unit of VMC, and prepare Cost is low, and large-scale continuous production can be achieved.

Brief description of the drawings

Fig. 1 is the schematic diagram of structure described in the utility model.

1 in figure, primary filter module；2nd, HEPA filtering modules；3rd, gas absorption and catalytic degradation module.

Embodiment

In order to more fully understand the utility model, it is described in detail below in conjunction with accompanying drawing and instantiation.

As shown in fig. 1, multifunctional air purifying screen pack of the present utility model includes 1, primary filter module；2、HEPA Filtering module；3rd, gas absorption and catalytic degradation module.First, the housing of primary filter module is fine using Moisture-proof water-resistant magma wood Tie up cardboard and metal phase combines, filtering material uses the electrostatic cotton compared with coarse fiber diameter, is mainly used in larger dust particle, mosquito Deng pre-filtering；

Secondly, from 12wt.% polyurethane spinning solution, 0.5wt.% TiO is adulterated₂Nano particle, using fusion spray cloth as base Bottom, by electrostatic spinning technique, antibacterial bacteriostatic Electrospun nano-fibers composite membrane is prepared, composite membrane is again through ULTRASONIC COMPLEX Mode is molded fixation, gives a discount into folding away from for 45 mm, the screen pack of the folding of broken number 55, fixes to form HEPA filterings with trimming frame edge Module；

Again, using hexagonal hole structure, thickness, it is 0.6g/ that loading is packed into honeycomb for 3cm plastic honeycomb Cm3 coconut husk activated carbon, the sieve plate number of plies are 1 layer, form coconut husk activated carbon honeycomb sieve plate gas adsorption modules；

Finally, by the TiO of the carried noble metal of preparation₂The ozone catalyst of efficient formaldehyde catalyst and Mn oxide loads Formaldehyde and ozone catalytic, degraded layer are formed on ceramic monolith, realizes that PARA FORMALDEHYDE PRILLS(91,95) and the efficient of ozone are urged under normal temperature, high humility Change, be degradable, and no coupling product produces.Each modular structure is set from outside to inside successively through plastic frame bound edge by more than again The fixed integral filter net for forming a plank frame of linking.

The multifunctional air purifying screen pack is installed on VMC air inlet, outdoor air passes through primary first Filtering module, pre-filtering remove larger dust particle, mosquito etc.；Then air is realized in air by HEPA filtering modules PM_2.5, bacterium, the particulate matter such as virus effective interception, and suppress bacterium, virus is bred in screen pack.First by particulate matter It can prevent that it from polluting subsequent gases absorption, catalytic degradation layer Deng filtration, purification, so as to not interfere with the effect of absorption and catalysis；Most Afterwards, air is by gas absorption and catalytic degradation module, before formaldehyde and ozone catalytic layer being arranged on into activated carbon adsorption layer, For formaldehyde, ozone in air after the complete catalytic degradation of catalyst, air enters coconut husk activated carbon honeycomb sieve plate Layer, the TVOC such as the benzene in air, dimethylbenzene, toluene are subjected to effective Adsorption, and will have little time to urge in last layer simultaneously The formaldehyde for changing degraded carries out effective Adsorption.This not only makes gas pollutant completely be removed, and ensures efficient catalytic Degraded and absorption, and the service life of coconut husk activated carbon honeycomb sieve plate layer can be extended, so as to reduce cost.Outdoor sky For gas after this series of filtration, purification, final cleaning air is admitted to interior by VMC pipeline, dilutes Interior Space Indoor pollution air is discharged into outdoor again while gas pollutant, plays deodorization, dedusting, purification, hydrofuge and the work(for adjusting room temperature Can, also room air is replaced while reaching system balancing.

It should be pointed out that preferred embodiment of the present utility model is the foregoing is only, it is all according to present utility model application patent model Done equivalent changes and modifications are enclosed, are all considered as the scope of protection of the utility model.

Claims

A kind of 1. multifunctional air purifying screen pack, it is characterised in that：The screen pack includes primary filter module, HEPA filter modules Block and gas adsorption modules, formaldehyde catalytic degradation module and ozone catalytic degraded module, HEPA mistakes are provided with gas adsorption modules Filter module is made up of the Electrospun nano-fibers composite membrane with antibacterial bacteriostatic performance.
A kind of 2. multifunctional air purifying screen pack according to claim 1, it is characterised in that：Outside primary filter module Frame is combined using Moisture-proof water-resistant magma wood-fibred cardboard and metal phase, and filtering material uses the electrostatic cotton nonwoven compared with coarse fiber diameter Cloth, nylon wire or metal hole pattern, housing easy detachable, recycling capable of washing, save operating cost.
A kind of 3. multifunctional air purifying screen pack according to claim 1, it is characterised in that：Described antibacterial bacteriostatic is quiet Electrospun nano-fibers membrane structure is controllable, preferably multi-level structure, and antibacterial bacteriostatic composition is contained in fiber.
A kind of 4. multifunctional air purifying screen pack according to claim 3, it is characterised in that：Described antibacterial bacteriostatic is quiet Antibiotic bacteriostat in Electrospun nano-fibers film is chitosan, chitin, Tea Polyphenols, Ag systems metal ion type, TiO₂Light is urged Change type, quaternary ammonium salt, double arc classes, organic metal class, the one or more of phenyl amines.
A kind of 5. multifunctional air purifying screen pack according to claim 3, it is characterised in that：Described electrostatic spinning is received Rice tunica fibrosa polymeric material for polyester, polyacrylonitrile, Nomex, polyurethane, polyether sulfone, polymethyl methacrylate, One or more in Kynoar, polystyrene, nylon 6, nylon66 fiber, polyvinylpyrrolidone.
A kind of 6. multifunctional air purifying screen pack according to claim 3, it is characterised in that：Described antibacterial bacteriostatic is quiet The basalis of Electrospun nano-fibers composite membrane is fusion spray cloth, spinning building, the one or more in electrostatic cotton, described Static Spinning The molding mode of silk nano fibrous membrane and basalis be hot pressing, suture or ULTRASONIC COMPLEX, then the mistake of certain size is formed through discounting Filter screen, fixed with frame made of aluminum profiles bound edge.
A kind of 7. multifunctional air purifying screen pack according to claim 1, it is characterised in that：Gas adsorption modules are by coconut palm Chitin activated carbon honeycomb sieve plate layer forms, and the filter layer is thick using hexagon or the plastic honeycomb of circular pore structure, honeycomb sieve plate Spend for 1-6cm, the loading of unit volume sieve plate is 0.2-10g/cm3, and the sieve plate number of plies is 1-2 layers.
A kind of 8. multifunctional air purifying screen pack according to claim 1, it is characterised in that：Formaldehyde catalytic degradation module By the TiO of carried noble metal₂Catalyst and carrier composition, the efficient catalytic degraded of formaldehyde can be realized at normal temperatures；Ozone catalytic Degraded module is made up of manganese oxide catalyst and carrier, and high ozone catalytic activity can be kept in high humidity environment.
A kind of 9. multifunctional air purifying screen pack according to claim 8, it is characterised in that：Formaldehyde and ozone catalyst Carrier material be ceramic honey comb or pellets.
A kind of 10. multifunctional air purifying screen pack according to claim 1, it is characterised in that：The primary filter mould Block, HEPA filtering modules, gas absorption and catalytic degradation module are set from outside to inside successively through aluminium section bar or plastic frame bound edge Linking is fixed into an integral filter net, and screen pack body can be annular, circular or plank frame, the multifunctional air purifying mistake The air filtration of filter screen collection, purification, antibacterial etc. is all over the body, windage are small, and service life is long, stability is good, can be applied to purification of air This kind of air cleaning unit of device, VMC.