CN110394051A

CN110394051A - Filtering material, filter assemblies, filter and filter method

Info

Publication number: CN110394051A
Application number: CN201910630483.6A
Authority: CN
Inventors: 高麟; 陈慧; 王韬; 莫代林; 任德忠
Original assignee: Intermet Technology Chengdu Co Ltd
Current assignee: Intermet Technology Chengdu Co Ltd
Priority date: 2018-11-13
Filing date: 2019-07-12
Publication date: 2019-11-01
Anticipated expiration: 2039-07-12
Also published as: CN110394051B; CN212236725U; CN110302664B; CN110523267A; CN211435757U; CN110523267B; CN211435756U; CN110302663A; CN110302664A

Abstract

The invention discloses a kind of filtering material, filter assemblies, filter and filter methods, it is therefore intended that solves the technical issues of improving filtering material attachment and breeding bacterium situation.Filtering material includes different function layer, includes physics filter layer in repertoire layer, and the physical filtering layer includes metal filtration layer and fibrous filter layer；The metal filtration layer and fibrous filter layer forward lap along filtering direction.Combination based on metal filtration layer in filtering material and fibrous filter layer on same physical filtering layer, when use when object to be filtered passes through the physical filtering layer, object to be filtered once filtered by metal filtration layer first after again by fibrous filter layer secondary filter, therefore, the micro organism quantities such as the bacterium into fibrous filter layer are reduced, to reduce the case where adhering in fibrous filter layer and breeding bacterium, and metal filtration layer bacteriostasis property is relatively preferable, bacterium is not easy to breed, in this way, physical filtering layer, which integrally breeds the problem of bacterium, can be obtained a degree of improvement.

Description

Filtering material, filter assemblies, filter and filter method

This application claims application No. is on November 2018 2018113497186, applying date 13, it is entitled " filtering material, The priority of the first Chinese application of filter assemblies, filter and filter method ".

Technical field

The innovation and creation that present specification is related to principally fall into filtration art, particularly belong to air filtration purification skill Art field.Specifically, the innovation and creation that present specification relates in one aspect to include a kind of filtering material, filter assemblies, mistake Filter and filter method.Other innovation and creation for being related to of aspect of present specification respectively include: a kind of filter structure, filtering group The manufacturing method of part and filter assemblies；A kind of manufacturing method of filter structure and filter structure；A kind of Formaldehyde decomposition catalyst is answered Felt and its manufacturing method is catalytically decomposed with its formaldehyde；And a kind of filter assemblies.

Background technique

Pollutant in air is broadly divided into solid pollutant and gas pollutant.For the solid pollutant in air (such as PM10, PM2.5) pollution generally passes through physical filtering (separation of special object is realized by physics mode) removal；Needle To the gas pollutant (such as VOC, i.e. organic gas substance) in air, generally (i.e. chemically using substance by chemical filtering The separation of matter realization special object) removal.

Fine particle (such as PM2.5) in solid pollutant is larger to human health damage.It is gone using physical filtering Except in terms of fine particle, filter efficiency is higher and the fiber filter material of good permeability (such as glass fibre, PP fiber, PET Fiber, varicosity PTFE fiber etc.) it is particularly common material.However, this kind of material is easy on its fibre bundle in use Attachment and growth bacterium, to cause secondary pollution.

Formaldehyde is then the larger substance of harm to the human body in gaseous pollutant.In terms of using chemical filtering removal formaldehyde, adopt It uses manganese dioxide in metal oxide to have been considered as feasible as Formaldehyde decomposition catalyst and has one in some respects Determine the mode of advantage.Currently, the manganese dioxide as Formaldehyde decomposition catalyst is limited to a nanometer electrode manganese dioxide, thus could have Standby enough specific surface areas are so that the Formaldehyde decomposition catalyst reaches using upper acceptable except formaldehyde efficiency.

Due in air often simultaneously contain different types of pollutant, in order to remove these pollutants, usually incited somebody to action The different filter device of filter object is sequentially connected in series to form filtration system.The filtration system by each independent filtering either filled It sets and is formed, can also be integrated by filter device.When filtration system is integrated by filter device, respectively as different filter devices Filtering material be installed in same case member if it were not for relatively independent, otherwise mutually assembled as relatively independent component 's.

Above-mentioned filtration system structure is more complicated, generally requires to occupy biggish space, while manufacturing cost is also higher, from And limit a possibility that it is applied in the parents equipment such as some traditional Household Air Purifiers, domestic air conditioner.Especially Be, people be difficult do not change or only by a small margin change parent device structure in the case where directly install this additional in parent equipment The filtration system of sample；Even if installing additional reluctantly, how to ensure that filtration system has sufficiently large filter area is also problem.

Innovation and creation content

Technology based on the above background completes following invention wound during developing novel air purification solution It makes.

On the one hand, the innovation and creation of completion include a kind of filtering material, filter assemblies, filter and filter method, purpose It is the technical issues of solving to improve filtering material attachment and breeding bacterium situation.

On the one hand, the innovation and creation of completion include the manufacturing method of a kind of filter structure, filter assemblies and filter assemblies, mesh Be solve optimization filtering material in different function layer composite construction the technical issues of.

On the one hand, the innovation and creation of completion further include the manufacturing method of a kind of filter structure and filter structure, it is therefore intended that The technical issues of fold shape filtering material fold waveform shape is effectively ensured in solution.

On the one hand, the innovation and creation of completion further include a kind of Formaldehyde decomposition catalyst, formaldehyde catalytic decomposition felt and they Manufacturing method, it is therefore intended that solve the technical issues of realizing formaldehyde high-efficiency catalytic decomposition.

On the one hand, the innovation and creation of completion further include a kind of filter assemblies, it is therefore intended that solve to realize and filter to fold shape Material is packaged the technical issues of forming filter assemblies.

The technical issues of in order to solve to improve filtering material attachment and breed bacterium situation, filtering material, filter assemblies, mistake The technical solution of filter and filter method is as follows:

Filtering material, including different function layer include physics filter layer, the physical filtering layer packet in repertoire layer Layer containing metal filtration and fibrous filter layer；The metal filtration layer and fibrous filter layer forward lap along filtering direction.

It is further that the metal filtration layer can double as conductive layer；The fibrous filter layer is doubled as to the exhausted of conductive layer Edge layer.

It is further that the metal filtration layer is mainly made of powder sintered metal porous material.

It is further that the metal filtration layer is a kind of thickness≤200 micron and folding flexible metal film.

It is further that the metal filtration layer contains netted skeleton and is filled in powder sintered in skeleton mesh Metal polyporous material.

Be further, average pore size≤200 micron of the metal filtration layer, 190 microns, 180 microns, 170 microns, 160 microns, 150 microns, 140 microns, 130 microns, 120 microns, 110 microns or 100 microns；And the metal filtration layer is flat Equal aperture >=5 micron, 10 microns, 20 microns, 30 microns, 40 microns, 50 microns, 60 microns, 70 microns, 80 microns, 90 microns Or 100 microns.

It is further that the fibrous filter layer is higher than metal filtration layer to solid to the filter efficiency of solid particulate matter The filter efficiency of grain object.

It is further that the fibrous filter layer is mainly by glass fibre, PP fiber, PET fiber, varicosity PTFE fiber At least one fiber filter material constitute；And/or the fibrous filter layer is mainly by superfine fiber filter material structure At.

It is further, attached between two surfaces of the metal filtration layer and fibrous filter layer adjacent to each other but does not glue It closes.

Being further includes chemical filtering layer in the repertoire layer；The physical filtering layer and chemical filtering layer It forward laps along filtering direction.

It is further that the chemical filtering layer includes at least one volatile organic matter filter layer；At least one Volatile organic matter filter layer includes the decomposition catalyst and/or adsorbent of corresponding volatile organic matter.

It is further that at least one volatile organic matter filter layer is formaldehyde filter layer, the decomposition catalyst Mainly by the MnO of δ crystal form₂The sub-micron of formation-micron order petal-shaped particle is constituted, the sub-micron-micron order petal-shaped The diameter of particle is mainly distributed between 0.5-5 microns.

It is further that the fibrous filter layer is a kind of fibrous filter layer with electrical insulation property.

Be further, the fibrous filter layer and at least one volatile organic matter filter layer it is adjacent to each other two It attaches but does not bond between surface.

Being further includes metal mesh supporting layer in the repertoire layer；The physical filtering layer and metal mesh branch Support layer forward laps along filtering direction.

Be further, the physical filtering layer, chemical filtering layer and metal mesh supporting layer before and after the filtering direction successively Overlapping.

It is further at least one volatile organic matter filter layer and metal mesh supporting layer each other adjacent two It attaches but does not bond between surface.

It is further that the filtering material has fold shape structure and stacks the base of the repertoire layer of the filtering material Part is the fold shape structure through integrated folding forming.

Be further be provided between adjacent at least two one functional layers in repertoire layer can prevent it is described adjacent At least two one functional layers between generate translation local connection structure.

Be further, it is described part connection structure include can with but necessarily along the spaced riveting in filtering material edge Fitting, the riveting parts are connect with adjacent at least two one functional layers respectively；Alternatively, the part connection structure includes can With but necessarily along the spaced bonding point in filtering material edge.

Filter assemblies, comprising: filter house, the filter house include any one of the above filtering material, the filtering material With fold shape structure；Positioning region, the positioning region include being arranged on filtering material periphery to which filtering material is limited to it It is internal and by the two sides of filtering material outwardly open posting；And sealing, the sealing include that setting is being filtered To prevent object to be filtered from penetrating without filtering material the sealing material in battery limit (BL) domain in posting between material and positioning region.

It is further to be provided on the positioning region for being led with what the metal filtration layer in filtering material was conductively connected Electrical components；The metal filtration layer is insulated in filter assemblies and can be charged by the conduction of conductive component.

It is further that the sealing material includes the sealant being adhered between filtering material periphery and posting.

It is further that the sealing material includes the plate at least sealing together positioned at filtering material edge；It is described at least Pass through sealing glue sticking, lateral surface and corresponding between the medial surface of plate sealing together and the face where corresponding filtering material edge Posting medial surface between by sealing glue sticking.

It is further that the filtering material is the fold shape structure that a shape is rectangle, and the filtering material is wherein A pair of of opposite side is fold wave mode side, and another pair opposite side is linear type side；The posting is fixed with the matched rectangle of filtering material Position frame；It is directly viscous with corresponding posting medial surface that the face on filtering material where the linear type side passes through sealant respectively It connects, fold wave mode side passes through the plate at least sealing together respectively and is bonded with corresponding posting medial surface.

It is further that the posting includes: side positioning framework, is arranged between the side positioning framework and filtering material There is sealing material；Upper positioning frame body, the upper positioning frame body are arranged in the upper end of side positioning framework and along the tops of side positioning framework Side extends；And lower positioning frame body, the lower positioning frame body are arranged in the lower end of side positioning framework and along the bottoms of side positioning framework Side extends.

It is further the upper positioning frame body and the split type connection of side positioning framework；The bottom surface of the upper positioning frame body Sealant with the step surface for being adapted to the upper end of side positioning framework, between upper positioning frame body and side positioning framework Substantially two parallel planes being covered on the step surface.

It is further that the positioning region further includes the conformal component of fold that filtering material side is arranged in；The fold Conformal component includes the supporter being arranged at intervals between the multipair adjacent pleats wave of filtering material.

It is further that above support by being filled in the positioning glue between the multipair adjacent pleats wave and solidified respectively It constitutes；The positioning glue is only filled in respectively between the wave crest of corresponding adjacent pleats wave.

Filter is installed on the air duct including air inlet, exhaust outlet and the air duct between air inlet and exhaust outlet There are any one of the above filter assemblies, the windward side of the filter assemblies is connected with air inlet, air side is connected with exhaust outlet.

It is further that the filter is doubled as by the air conditioner with air filtering function.

Filter method passes through any one of the above filtering material, any one of the above filter assemblies or any one of the above Filter filters the air purification；Wherein, metal filtration layer electrification or not charged.

Above-mentioned filtering material, filter assemblies, filter and filter method, based on metal filtration layer and fiber in filtering material Combination of the filter layer on same physical filtering layer, when use when object to be filtered passes through the physical filtering layer, object to be filtered is first It is therefore, micro- into the bacterium of fibrous filter layer etc. again by fibrous filter layer secondary filter after first once being filtered by metal filtration layer Biomass is reduced, so that the case where adhering in fibrous filter layer and breeding bacterium is reduced, and metal filtration layer bacteriostasis property Relatively preferably, bacterium is not easy to breed, in this way, a degree of improvement can be obtained in physical filtering layer the problem of integrally breeding bacterium.

Due to metal filtration layer and fibrous filter layer along filtering direction forward lap after can mutually support, for gold Belong to filter layer and fibrous filter layer along filtering direction forward lap after the support of lamination itself that is formed and/or positioning will be more By the unified realization of same parts except metal filtration layer and fibrous filter layer, help to reduce by metal filtration layer and fiber mistake The occupied space for the functional unit that filtering layer is constituted.

The technical issues of in order to solve different function layer composite construction in optimization filtering material, filter structure, filter assemblies And the technical solution of the manufacturing method of filter assemblies is as follows:

Filter structure, including filtering material, the filtering material include different function layer, the repertoire layer of the filtering material In adjacent at least two one functional layers between attach but do not bond；The blank of repertoire layer of the filtering material is stacked through one Body deformation processing is shaped to the filtering material of specific shape.

Be further, adjacent at least two one functional layers be present in any one following situation or it is any two kinds with Among the combination of upper situation: a) comprising the physical filtering layer of two layers of above functions layer；B) comprising the chemistry of two layers of above functions layer Filter layer；C) physical filtering layer and the chemical filtering layer comprising one layer of above functions layer comprising one layer of above functions layer is compound Layer；D) composite layer of the physical filtering layer comprising one layer of above functions layer and the materials for support layer comprising one layer of above functions layer； E) composite layer of the chemical filtering layer comprising one layer of above functions layer and the materials for support layer comprising one layer of above functions layer；F) it wraps Physical filtering layer containing one layer of above functions layer, the chemical filtering layer comprising one layer of above functions layer and include one layer of above functions The composite layer of the materials for support layer of layer.

It is further that the physical filtering layer includes metal filtration layer and/or fibrous filter layer；And/or it is described Chemical filtering layer includes at least one volatile organic matter filter layer, and at least one volatile organic matter filter layer includes phase The decomposition catalyst and/or adsorbent for the volatile organic matter answered；And/or the materials for support layer includes metal mesh branch Support layer.

It is further to be provided at least two layers of the function that this can be prevented adjacent between adjacent at least two one functional layers The local connection structure of translation is generated between ergosphere.

Be further, it is described part connection structure include riveting parts, the riveting parts respectively with it is described it is adjacent at least The connection of two one functional layers；And/or the part connection structure includes bonding point.

It is further that the part connection structure is arranged along the edge interval of filtering material.

It is further that the U-shaped metal nail that the riveting parts are bent inwards by bipod is constituted；Described adjacent at least two layers Functional layer is clamped between the interconnecting piece on the head of U-shaped metal nail and the portion that bends inwards of foot.

It is further to stack the blank of the repertoire layer of the filtering material to be shaped to fold through integrated deformation processing The filtering material of shape structure.

Filter assemblies, comprising: filter house, including any one of the above filter structure, the filtering material of the filter structure are The filtering material of fold shape structure is shaped to by stacking the blank of the filtering material repertoire layer through integrated deformation processing；Positioning Portion, the positioning region include that filtering material periphery is arranged in limit filtering material inside it and by the two of filtering material Lateral extraneous open posting；And sealing, the sealing include be arranged between filtering material and positioning region to Prevent object to be filtered from penetrating the sealing material in battery limit (BL) domain in posting without filtering material.

The manufacturing method of filter assemblies, comprising: each be respectively used to constitute filtering material corresponding function layer by independent Blank successively overlaps to form the blank of the repertoire layer of stack filter material；It will be described independent each by local connection structure It is a to be respectively used to constitute the anti-translation connection that the blank of filtering material corresponding function layer carries out on local attachment point；To the stacking The blank of the repertoire layer of filtering material carries out the filtering material that integrated deformation processing is shaped to specific shape；By filtering material It assembles to form filter assemblies with the other parts of filter assemblies.

When attaching and bonding between adjacent at least two one functional layers in the repertoire layer of filtering material, in order to It realizes such bonding, basically, foot will be generated on the interface inevitably between the functional layer attached each other Faying face of certain barrier effect, such as viscose glue faying face, sinter bonded face etc. are caused with fluid flow, thus will increase Filtration resistance.And when attaching but not bonding between adjacent at least two one functional layers in the repertoire layer of filtering material, The problem of filtration resistance would not being caused to increase；Simultaneously as the blank of the repertoire layer of stack filter material is through integrated change Shape machine-shaping is the filtering material of specific shape, filtering material can either be made to be shaped to the shape and structure of design in this way, again So that shape, structure is almost the same and realize the uniformity of filtering flow simultaneously between the functional layer attached each other in filtering material Filtration resistance is reduced, and can also mutually be supported between these functional layers to improve the integral strength of filtering material.

When the blank for the repertoire layer for stacking the filtering material is shaped to fold shape structure through integrated deformation processing When filtering material, not only make filtering material that there is bigger filter area, simultaneously because the repertoire layer of filtering material is equal For fold shape structure, relative displacement is not susceptible between attaching but the functional layer not bonded.

The technical issues of in order to solve to be effectively ensured fold shape filtering material fold waveform shape, filter structure and filter structure Manufacturing method technical solution it is as follows:

Filter structure, including the filtering material with fold shape structure, the filtering material side is equipped with the conformal portion of fold Part；The conformal component of fold includes the supporter being arranged at intervals between the multipair adjacent pleats wave of filtering material.

It is further that each supporter of the conformal component of fold is only respectively acting on the wave crest of corresponding adjacent pleats wave Between.

It is further that each supporter of the conformal component of fold by being filled in the wave crest of corresponding adjacent pleats wave respectively Between and solidify positioning glue constitute.

It is further that the positioning glue is filled in the depth in the gap between the wave crest of corresponding adjacent pleats wave and does not surpass Cross 1.5 centimetres, 1.2 centimetres, 1 centimetre, 0.8 centimetre or 0.5 centimetre.

It is further that the positioning glue forms continuous positioning tree lace in the side of filtering material.

It is further that the conformal component of fold includes that at least two of filtering material side are arranged in not to be overlapped each other Positioning tree lace.

It is further that the filtering material includes at least the metal mistake being mainly made of powder sintered metal porous material Filtering layer, the metal filtration layer are a kind of thickness≤200 micron and folding flexible metal film；The conformal component of fold Each supporter directly act on the surface of metal filtration layer.

It is further that the filtering material includes different function layer, stacks the base of the repertoire layer of the filtering material Part is shaped to the filtering material of fold shape structure through integrated deformation processing, includes materials for support layer, institute in the different function layer It states the conformal component of fold and materials for support layer is located at leading flank and the trailing flank of filtering material.

It is further that the materials for support layer is the metal mesh supporting layer made of metal mesh.

The manufacturing method of filter structure, comprising: obtain the filtering material with fold shape structure；By the side of filtering material It places upwardly, glue is then positioned to the lateral of filtering material from top to bottom by syringe, and position glue in injection When make syringe along the fold wave of filtering material fluctuation direction and filtering material relative motion；Make enter each adjacent pleats wave it Between positioning glue i.e. solidification when being only filled between the wave crest of corresponding adjacent pleats wave in gap.

Filtering material with fold shape structure can greatly improve filtering for the filtering material of smooth surface The filter area of material, to promote filter efficiency；But the fold wave of fold shape structure is easily deformed in use process, is led It causes the gap between fold wave inconsistent, it is uneven to finally result in the filtration flux being distributed on filtering material.Above-mentioned filter structure Can supporter between the multipair adjacent pleats wave by being arranged at intervals at filtering material in the conformal component of fold prevent pleat Ripple deformation, so that it is guaranteed that the uniformity for the filtration flux being distributed on filtering material.

In order to solve realize formaldehyde high-efficiency catalytic decomposition the technical issues of, Formaldehyde decomposition catalyst, formaldehyde catalytic decomposition The technical solution of felt and their manufacturing method is as follows:

Formaldehyde decomposition catalyst, mainly by the MnO of δ crystal form₂The sub-micron of formation-micron order petal-shaped particle is constituted. " sub-micron-micron order petal-shaped particle " refers to, diameter is in the submicron order petal-shaped particle of 0.1-1 micron range and straight Combination of the diameter in the micron order petal-shaped particle of 1-10 micron range.

In general, sub-micron-micron order petal-shaped particle diameter distribution >=0.5 micron.That is these sub-micron-microns The smallest submicron order petal-shaped particle of diameter diameter group of the maximum micron order petal-shaped particle of diameter in grade petal-shaped particle Diameter it is at least 0.5 micron big.

It is further that the sub-micron-micron order petal-shaped particle diameter is mainly distributed between 0.1-5 microns, More specifically it is mainly distributed between 0.3-5 microns.It is further the sub-micron-micron order petal-shaped particle diameter It is mainly distributed between 0.5-5 microns；It is yet further that the sub-micron-micron order petal-shaped particle diameter mainly divides Cloth is between 0.5-3 microns.

It is further the sub-micron-micron order petal-shaped particle washes basic.

Felt is catalytically decomposed in formaldehyde, includes ventilative supporter and the Formaldehyde decomposition catalyst being attached on ventilative supporter, institute Stating Formaldehyde decomposition catalyst is any one of the above Formaldehyde decomposition catalyst.

Be further, the Formaldehyde decomposition catalyst distribution in the material for constituting ventilative supporter outside and mainly fill out It fills in the hole between the material for constituting ventilative supporter.

It is further to include the bonding agent being distributed on the Formaldehyde decomposition catalyst；The bonding agent is preferably but not It is limited to acrylic acid series bonding agent or urethane adhesive.

It is further, if the weight of Formaldehyde decomposition catalyst is set as first divided by the area of the windward side of ventilative supporter Opposite adhesion amount of the aldehyde decomposition catalyst on ventilative supporter, then the opposite adhesion amount is 40g/m²More than.

It is further that the ventilative supporter uses air permeability >=3000m in 100 pa pressure difference³/m²Hour Permeable fiber felt, it is preferred to use air permeability >=5500m in 100 pa pressure difference³/m²The permeable fiber felt of hour；And And the opposite adhesion amount is 40-120g/m², preferably 50-70g/m²。

It is further that the ventilative supporter uses PP fibrofelt or PET fiber felt.

It is further that the ventilative supporter uses foam-like porous supporter or supporting network；When the ventilative support When object uses supporting network, the supporting network can be any one in mesh grid, punching net, oblique pull net.

Volatile organic matter filtering material includes ventilative supporter and the corresponding volatility being attached on ventilative supporter The decomposition catalyst or adsorbent of organic matter, in addition,

1) the volatile organic matter filtering material is that felt is catalytically decomposed in formaldehyde, and formaldehyde catalytic decomposition felt belongs to above-mentioned any A kind of formaldehyde catalytic decomposition felt, also, the Formaldehyde decomposition catalyst in formaldehyde catalytic decomposition felt is extruded and is scattered in composition thoroughly In hole between the material of gas supporter, the extruding scatter operation is that Formaldehyde decomposition catalyst is being attached to ventilative support It is carried out in extrusion process in the attachment process on object surface and/or after attachment process；Or

2) decomposition catalyst of the volatile organic matter or adsorbent are extruded the material for being scattered in and constituting ventilative supporter In hole between material, described to squeeze scatter operation be attached in the decomposition catalyst or adsorbent of the property of will volatilize organic matter It is carried out in extrusion process in the attachment process on gas supporter surface and/or after attachment process.

It is further that the operation for squeezing dispersion is by can be to the Formaldehyde decomposition catalyst/volatilization Property organic matter decomposition catalyst or adsorbent apply extrusion parts perpendicular to the extruding force on ventilative supporter surface to realize 's.

It is further that the attachment process and/or extrusion process include by as extrusion parts and along ventilative support The scraper of object surface parallel motion divides the Formaldehyde decomposition catalyst being attached on ventilative supporter/volatile organic matter Solution catalyst or adsorbent squeeze the process in the hole between the material for being scattered in and constituting ventilative supporter.

It is further that the attachment process and/extrusion process include by as extrusion parts and along ventilative supporter The pressure roller of surface parallel rolling is by the decomposition of the Formaldehyde decomposition catalyst being attached on ventilative supporter/volatile organic matter Catalyst or adsorbent squeeze the process in the hole between the material for being scattered in and constituting ventilative supporter.

Above-mentioned Formaldehyde decomposition catalyst and the formaldehyde catalytic decomposition felt for applying the Formaldehyde decomposition catalyst are related to specific crystalline substance Type, microscopic appearance, diameter and the MnO of diameter distribution₂Particle, the MnO₂A kind of scale that particle is developed based on applicant Obtained by metaplasia production. art, which not only substantially increases the production efficiency of Formaldehyde decomposition catalyst, meanwhile, obtained product I.e. above-mentioned Formaldehyde decomposition catalyst also breaks through expection except effect of formaldehyde, has ideal compared to other existing Formaldehyde decomposition catalyst Remove formaldehyde efficiency.

And felt is catalytically decomposed for a kind of above-mentioned formaldehyde, it is ventilative by dispersing composition for the extruding of Formaldehyde decomposition catalyst In hole between the material of supporter, very good solution Formaldehyde decomposition catalyst is difficult to be uniformly distributed on ventilative supporter Technical problem, help further to be promoted formaldehyde catalytic decomposition felt except effect of formaldehyde.

The manufacturing method of Formaldehyde decomposition catalyst obtains formaldehyde by raw material hybrid reaction of potassium permanganate, manganese sulfate and water Decomposition catalyst specifically includes:

A. the liquor potassic permanganate that potassium permanganate is configured as 60-110 grams per liter is placed in the first titration tank, by sulphur Sour manganese is configured as the manganese sulfate solution that concentration is 70-120 grams per liter and is placed in the second titration tank, Gao Meng in the first titration tank The ratio between the amount of substance is 3:3 to 4:3 between manganese sulfate in sour potassium and the second titration tank, if setting the permanganic acid in the first titration tank The volume of potassium solution or the volume of the manganese sulfate solution in the second titration tank are benchmark volume, then base volume is no less than 50 liters；

B. the manganese sulfate solution titrated respectively by first in liquor potassic permanganate and the second titration tank in tank is added dropwise simultaneously The volume stored in advance into mixing reactor is in the bottom water of benchmark volume 2 times or more, simultaneously by first in 10-45 minutes The manganese sulfate solution in liquor potassic permanganate and the second titration tank in titration tank is all added dropwise, then at 70-90 DEG C Mixed liquor is sufficiently stirred until the reaction is complete；

C. it is separated by solid-liquid separation from mixed liquor after the reaction was completed and obtains Formaldehyde decomposition catalyst.

The manufacturing method of Formaldehyde decomposition catalyst carries out alkali cleaning to object and obtains the Formaldehyde decomposition catalyst after alkali cleaning, The object are as follows: 1) potassium permanganate, manganese sulfate and water are the Formaldehyde decomposition catalyst that raw material hybrid reaction obtains；2) above-mentioned first The sediment obtained after step B in the manufacturing method of aldehyde decomposition catalyst；Or 3) the manufacturing method of above-mentioned Formaldehyde decomposition catalyst The Formaldehyde decomposition catalyst obtained after middle step C.

It may quilt inventors have found that existing using potassium permanganate, manganese sulfate and water as Formaldehyde decomposition catalyst prepared by raw material The peculiar smell being aware of, the peculiar smell of Formaldehyde decomposition catalyst can be removed by alkali cleaning, and what promotion Formaldehyde decomposition catalyst used relaxes Adaptive.

The manufacturing method of formaldehyde catalytic decomposition felt, comprising: ventilative supporter is provided；Offer contains Formaldehyde decomposition catalyst Feed liquid；Feed liquid extruding is dispersed on ventilative supporter, the formaldehyde catalytic decomposition felt is obtained after feed liquid is dry；Its In, the Formaldehyde decomposition catalyst are as follows: 1) any one of the above Formaldehyde decomposition catalyst；2) any one of the above Formaldehyde decomposition is urged The Formaldehyde decomposition catalyst that the manufacturing method of agent obtains；Or 3) mainly by the MnO of δ crystal form₂The sub-micron of formation-micron order flower The Formaldehyde decomposition catalyst that petaloid particle is constituted.

It is further that the feed liquid is attached on ventilative supporter by slurry technique, the extruding dispersion process is deposited It is in the slurry technique.

In order to solve to be packaged fold shape filtering material the technical issues of forming filter assemblies, filter assemblies Technical solution is as follows:

Filter assemblies, comprising: filter house, the filter house include filtering material, and the filtering material has fold shape knot Structure；Positioning region, the positioning region is including setting on filtering material periphery to limit inside it and will filter filtering material The two sides of material outwardly open posting；And sealing, the sealing include being arranged in filtering material and positioning region Between to prevent object to be filtered from penetrating without filtering material the sealing material in battery limit (BL) domain in posting.

It is further that above support by being filled in the multipair adjacent pleats on filtering material leading flank respectively Between wave and the positioning glue of solidification is constituted；The positioning glue is only filled in respectively between the wave crest of corresponding adjacent pleats wave.

It is further that the filtering material includes at least the metal mistake being mainly made of powder sintered metal porous material Filtering layer, the metal filtration layer are a kind of thickness≤200 micron and folding flexible metal film.

It is further that the filtering material includes different function layer, adjacent in the repertoire layer of the filtering material It attaches but does not bond between at least two one functional layers, include materials for support layer, the materials for support layer in the different function layer The preferably metal mesh supporting layer made of metal mesh；The blank for stacking the repertoire layer of the filtering material adds through one deformation Work is shaped to the filtering material of fold shape structure.

The application is described further with reference to the accompanying drawings and detailed description.The additional aspect of the application and excellent Point will be set forth in part in the description, and partially will become apparent from the description below, or the practice for passing through the application It solves.

Detailed description of the invention

The attached drawing constituted part of this application is used to assist understanding to the application, content provided in attached drawing and its Related explanation can be used for explaining the application in this application, but not constitute the improper restriction to the application.In the accompanying drawings:

Fig. 1-7 shows the manufacturing process of one of the innovation and creation that present specification is related to filter assemblies.Wherein:

Fig. 1 is the exploded view of the blank of the repertoire layer of stack filter material.

Fig. 2 is the schematic diagram of the blank of the repertoire layer of stack filter material.

Fig. 3 is to show after the blank of the repertoire layer of stack filter material is integrally folded into the fold shape structure of filtering material It is intended to.

Fig. 4 is the schematic diagram for filling and freezing solidly on the positioning glue between the multipair adjacent pleats wave of filtering material.

Fig. 5 is the schematic diagram that sealing plate is installed on filtering material.

Fig. 6 is that filtering material is put into the schematic diagram before posting.

Fig. 7 is the structural schematic diagram of filter assemblies.

Fig. 8 is a kind of structural schematic diagram of the filter for the innovation and creation that present specification is related to.

Fig. 9 is the photo in kind of structure shown in Fig. 4.

Figure 10 is a kind of scanning electron microscope (SEM) photograph of the Formaldehyde decomposition catalyst for the innovation and creation that present specification is related to.

The photo of the visual field chosen on slide glass when figure (a)-(d) in Figure 10 is respectively microscopic observation without tendency.

Figure 11 is X-ray diffraction (XRD) figure of Formaldehyde decomposition catalyst shown in Figure 10.

Figure 12 is that the scanning electron microscope (SEM) photograph of felt is catalytically decomposed in a kind of formaldehyde for the innovation and creation that present specification is related to.

The photo of the visual field chosen on slide glass when figure (a)-(d) in Figure 12 is respectively microscopic observation without tendency.

Figure 13 is the scanning electron microscope (SEM) photograph of the Formaldehyde decomposition catalyst of comparative example 1.

The photo of the visual field chosen on slide glass when figure (a)-(b) in Figure 13 is respectively microscopic observation without tendency.

Figure 14 is that concentration of formaldehyde is at any time when being carried out using the Formaldehyde decomposition catalyst of embodiment A1 except formaldehyde performance test Variation diagram.

Figure 15 is that concentration of formaldehyde is at any time when being carried out using the Formaldehyde decomposition catalyst of embodiment A5 except formaldehyde performance test Variation diagram.

Figure 16 is that concentration of formaldehyde becomes at any time when being carried out using the Formaldehyde decomposition catalyst of comparative example 1 except formaldehyde performance test Change figure.

A kind of scanning electron microscope (SEM) photograph of Formaldehyde decomposition catalysis felt in the innovation and creation that Figure 17 is related to for present specification.

Felt all-round property testing figure is catalytically decomposed in the formaldehyde that Figure 18 is embodiment B1-B5.

Figure 19 is that the Formaldehyde decomposition catalyst distribution uniformity pair of felt is catalytically decomposed in the formaldehyde of embodiment B2 and embodiment B6 According to figure.

In the figure, it is marked as filtering material 100, physical filtering layer 110, metal filtration layer 111, fibrous filter layer 112, chemistry Filter layer 120, volatile organic matter filter layer 121, ventilative supporter 121a, decomposition catalyst 121b, metal mesh supporting layer 130, fold shape structure 101, fold wave mode 101b, fold wave 101c in 101a, linear type；Filter assemblies 200, filter house 210, positioning region 220, posting 221, side positioning framework 221a, upper positioning frame body 221b, step surface 221b1, lower positioning frame body The conformal component 222 of 221c, fold, positioning glue 222a, conductive component 223, sealing 230, sealing plate 231；Filter 300, into Air port 310, exhaust outlet 320；Fold wave positioning tool 400.

Specific embodiment

With reference to the accompanying drawing to this application involves innovation and creation carry out clear, complete explanation.Ordinary skill Personnel based on these explanation in the case where will realize this application involves innovation and creation.

Before being illustrated in conjunction with attached drawing to the application, of particular note is that: it is including following the description in the application Technical solution provided in each section inside, technical characteristic, in the absence of conflict, these technical solutions, technology are special Sign can be combined with each other.

In addition, the embodiment being related in following the description, embodiment are generally only one branch of the application rather than whole Embodiment, embodiment.Therefore, based on embodiment, the embodiment in the application, those of ordinary skill in the art are not having Every other embodiment obtained under the premise of creative work, embodiment are made, the application protection all should belong to Range.

The description and claims of this application and the terms "include", "comprise" in related part, " having " with And their any deformation, it is intended that cover and non-exclusive include.And other relational languages and unit in the application, It is reasonably explained based on the application related content.

Fig. 1-7 and 9 shows the manufacturing process of one of the innovation and creation that present specification is related to filter assemblies, In be able to reflect the dependency structures such as the filter assemblies and its filtering material.

As shown in Fig. 1-7 and 9, the filtering material 100 in filter assemblies has different function layer, wraps in repertoire layer Filter layer containing physics 110, physical filtering layer 110 include metal filtration layer 111 and fibrous filter layer 112, the metal filtration layer 111 forward lap with fibrous filter layer 112 along filtering direction.

Wherein, metal filtration layer 111 is mainly made of metal (including alloy).The metal filtration layer 111 preferably mainly by The metal filtration layer that powder sintered metal porous material is constituted；More preferable thickness≤200 micron and folding flexible metal is thin Film.

Thickness≤200 micron of the flexible metal film, therefore more easily reach higher gas permeability.Due to flexible gold It is foldable to belong to film itself, therefore does not influence the bending or folding to 100 shape of filtering material.

The flexible metal film can be using made by the method provided in the Chinese patent document of CN104874798A Standby porous membrane, can also be using the flexible metal film of other methods preparation.

The application ad hoc proposal is used by present applicant in based on above-mentioned CN104874798A patent document Content and the trade name that manufactures are the product of " paper mold film ".

Paper mold film is a kind of containing netted skeleton and the powder sintered metal porous material being filled in skeleton mesh Flexible metal film, thickness can achieve≤200 microns and itself is foldable.

In above-mentioned physical filtering layer, the average pore size of paper mold film (or other metal filtration layers 111) is generally set in 5-200 In micron range.The upper limit value of the range can also be set as needed for 190 microns, 180 microns, 170 microns, 160 microns, 150 microns, 140 microns, 130 microns, 120 microns, 110 microns or 100 microns；The lower limit value of the range also can according to need It is micro- to be set as 10 microns, 20 microns, 30 microns, 40 microns, 50 microns, 60 microns, 70 microns, 80 microns, 90 microns or 100 Rice.

Above-mentioned term " average pore size " is the Common Parameters for characterizing porous material, can be measured by bubble method.By the application Applicant's application, the relevant technologies can be same as measuring involved in the Patent Application Publication of Publication No. CN104266952A The average pore size of metal filtration layer 111.

In order to make metal filtration layer 111 obtain preferable balance, metal filtration layer 111 between gas permeability and filter efficiency Typically 10-150 microns of average pore size, be further 10-120 microns, be further 10-100 microns, more It is further 10-80 microns.

Above-mentioned term " filter efficiency ", refers to the amount of the solid particulate matter under test conditions, intercepted by filtering material With the ratio between the amount of solid particulate matter contained in itself in gas to be filtered.

It may include some metallicses with sterilizing function, such as copper, silver etc. in metal filtration layer 111.In above-mentioned mistake One of filter material material/a little embodiments can be, and the powder sintered metal porous material of metal filtration layer 111 is mainly burnt by powder The copper-nickel alloy that knot is formed is constituted, and such metal filtration layer 111 can either meet to " flexibility " requirement, but also with certain Sterilizing function.

Fibrous filter layer 112 mainly by inorganic non-metallic fiber (such as glass fibre), organic fiber (such as PP fiber) or it Composite material be made.In general, the fibrous filter layer 112 is mainly by glass fibre, PP fiber, PET fiber, varicosity PTFE At least one of fiber fiber filter material is constituted.

In general, fibrous filter layer 112 is above 111 pairs of solid of metal filtration layer to the filter efficiency of solid particulate matter The filter efficiency of particulate matter.

The fibrous filter layer that fibrous filter layer 112 is preferably mainly made of superfine fiber filter material, so as to make fiber Filter layer 112 has better filter efficiency and gas permeability.

" superfine fiber filter material " is interpreted as: its diameter can make manufactured fibrous filter layer to gas to be filtered Fiber filter material of the removal rate of the dust of partial size >=2.5 μm 98% or more in body.Above-mentioned glass fibre, PP fiber, PET Fiber, varicosity PTFE fiber may each be superfine fiber filter material.

Above-mentioned filtering material 100 is due to combining metal filtration layer 111 with fibrous filter layer 112, and object to be filtered is first Again by 112 secondary filter of fibrous filter layer after once being filtered by metal filtration layer 111, therefore, into the thin of fibrous filter layer 112 Bacterium negligible amounts, so that the case where adhering in fibrous filter layer and breeding bacterium is reduced, and 111 bacteriostasis property of metal filtration layer Relatively preferably, bacterium is not easy to breed, in this way, the whole especially physical filtering layer 110 of filtering material 100 can the problem of breeding bacterium It is improved.

Due to metal filtration layer 111 and fibrous filter layer 112 along filtering direction forward lap after can mutually support, For metal filtration layer 111 and fibrous filter layer 112 along filtering direction forward lap after the support of lamination itself that is formed and/or Positioning will realize more by the same parts except metal filtration layer 111 and fibrous filter layer 112 are unified, help to reduce by The occupied space for the functional unit that metal filtration layer 111 and fibrous filter layer 112 are constituted.

When the fibrous filter layer that fibrous filter layer 112 is mainly made of superfine fiber filter material, metal filtration layer 111 Average pore size to be selected as 10-100 microns be than convenient, also, the average pore size of metal filtration layer 111 is selected as 20-80 microns are particularly suitable for.

Rule of thumb, the filtering accuracy of porous filter medium is approximately equal to the 1/10 of its average pore size.For example, working as metal filtration When the average pore size of layer 111 is 80 microns, filtering accuracy is about 8 microns.Also, when filtering, can also on metal filtration layer 111 Filter cake is gradually formed, to further increase filtering accuracy, i.e., less than 8 microns.That is, putting down when metal filtration layer 111 When equal aperture is 80 microns, the solid particulate matter (dust) of partial size≤8 micron can be intercepted in filtering.

When the average pore size of metal filtration layer 111 is selected as 10-100 microns, metal filtration layer 111 can intercept larger Mycotic spore (the aerial particle size distribution range master of the biggish solid particulate matter of the partial sizes such as partial PM10, major part To be 1-100 microns) and a part of bacterium (aerial particle size distribution range is mainly 0.5-10 microns).This Sample can effectively reduce the case where adhering on fibrous filter layer 112 with mould growth and bacterium.

But the lower limit when the average pore size of metal filtration layer 111 in 10-100 microns, entire filtering material Especially in addition to comprising metal filtration layer and fibrous filter layer also comprising other function layer especially have physical filtering effect or The gas permeability of the filtering material of the functional layer of chemical filtering effect is lower.

Therefore, it is preferable to according to the average pore size of the whole strainability index selection metal filtration layer 111 of filtering material 100 Equal associated technical parameters.

It is capable of the characteristic of conduction mostly using metal filtration layer, the metal filtration layer 111 of above-mentioned filtering material 100 can also be simultaneous Make conductive layer, in this way, metal filtration layer 111 can be in band filtrate when charging metal filtration layer 111 by external power supply Charged particle repelled or adsorbed, thus improve filtering material 100 filter efficiency.

Meanwhile fibrous filter layer has the characteristic of insulation mostly, it is therefore, fine when metal filtration layer 111 doubles as conductive layer Dimensional filter layer 112 then may act as the insulating layer to conductive layer, in order to by metal filtration layer 111 and installation filtering material 100 Shell and/or other component (such as other function layer of filtering material) insulation connection.

Metal filtration layer 111 doubles as conductive layer and fibrous filter layer 112 serves as the design to the insulating layer of conductive layer, into one The material property of metal filtration layer 111 and fibrous filter layer 112 is utilized in step, to make metal filtration layer 111 and fiber filter Layer 112 is preferably combined together.

Other than metal filtration layer 111 and fibrous filter layer 112, in the repertoire layer of above-mentioned filtering material 100 also It include chemical filtering layer 120, and the physical filtering layer 110 forward laps with chemical filtering layer 120 along filtering direction.

Preferably, the chemical filtering layer 120 includes at least one volatile organic matter filter layer 121, and described at least one Kind volatile organic matter filter layer 121 includes the decomposition catalyst 121b or adsorbent of corresponding volatile organic matter.

At least one volatile organic matter filter layer 121 also typically includes ventilative supporter 121a, and the decomposition is urged Agent 121b or adsorbent are attached on ventilative supporter 121a.

At least one volatile organic matter filter layer 121 preferably formaldehyde filter layer.At this moment, volatile organic matter Decomposition catalyst or adsorbent should be Formaldehyde decomposition catalyst or formaldehyde adsorbent.

In general, the formaldehyde filter layer includes ventilative supporter 121a and the first being attached on ventilative supporter 121a Aldehyde decomposition catalyst or formaldehyde adsorbent.

The Formaldehyde decomposition catalyst that the Formaldehyde decomposition catalyst is preferably developed by present applicant, mainly by δ The MnO of crystal form₂The sub-micron of formation-micron order petal-shaped particle is constituted.

Above-mentioned Formaldehyde decomposition catalyst major advantage is except effect of formaldehyde is high, and can be with large-scale production.About this Formaldehyde decomposition catalyst and application its formaldehyde filter layer will exclusively carry out detailed description in the further part of this specification.

The Formaldehyde decomposition catalyst can certainly be substituted by other catalyst, such as titanium deoxide catalyst (uses Photocatalysis technology).In addition, there is also the formaldehyde adsorbents of plurality of optional in the prior art, such as can be using active carbon, boiling Stone, adobe ore etc..If the application uses formaldehyde adsorbent, active carbon is preferably used.

When metal filtration layer 111 doubles as conductive layer and fibrous filter layer 112 serves as the insulating layer to conductive layer, due to fibre Dimensional filter layer 112 plays insulating effect between metal filtration layer 111 and formaldehyde filter layer, therefore can be avoided metal filtration layer 111 The adverse effect for charging PARA FORMALDEHYDE PRILLS(91,95) decomposition catalyst or formaldehyde adsorbent such as avoids metal filtration layer 111 from charging PARA FORMALDEHYDE PRILLS(91,95) and decomposes The influence of catalyst surface electronic structure and reduce catalytic activity.

In addition, no matter metal filtration layer 111 whether external power supply, surface may have certain charge.It such as will be fine Dimensional filter layer is set as a kind of fibrous filter layer with electrical insulation property, then can be avoided the surface electricity of metal filtration layer 111 Lotus is to the adverse effect of decomposition catalyst 121b or adsorbent at least one volatile organic matter filter layer 121, such as It avoids influence of the surface charge of metal filtration layer 111 to decomposition catalyst 121b Electronic Structure and reduces catalytic activity.

Other than metal filtration layer 111 and fibrous filter layer 112, in the repertoire layer of above-mentioned filtering material 100 also It may include metal mesh supporting layer 130；The physical filtering layer 110 forward laps with metal mesh supporting layer 130 along filtering direction.

In possible situation, above-mentioned metal mesh supporting layer 130 can also carry out equivalent replace by other materials for support layers Generation." doctrine of equivalents " in so-called " equivalent " meaning and patent infringement judgement is consistent.

When in the repertoire layer of above-mentioned filtering material 100 including chemical filtering layer 120, the physical filtering layer 110, Chemical filtering layer 120 and metal mesh supporting layer 130 are successively overlapped before and after filtering direction.

The basic role of above-mentioned metal mesh supporting layer 130 is along the direction opposite with filtering direction to filtering material 100 In be located at metal mesh supporting layer 130 before functional layer be supported, prevent these functional layers along filtering direction deform.

When filtering material 100 includes chemical filtering layer 120, it is contemplated that 120 pairs of filtering material of chemical filtering layer are integrally saturating Gas has certain influence, at this point it is possible to suitably increase the average pore size of metal filtration layer 111.

It can be in one of above-mentioned filtering material 100/a little embodiments, filtering material is by metal filtration layer 111, fiber Filter layer 112, formaldehyde filter layer and metal mesh supporting layer 130 are constituted, wherein the average pore size of metal filtration layer 111 is set in Between 40-90 microns, such as specially 42 microns, 55 microns, 79 microns and 85 microns, to these metal filtration layers 111 using effect is satisfied.

Preferably, filtering material 100 has fold shape structure 101 and stacks the repertoire layer of the filtering material 100 Blank through integrated folding forming be the fold shape structure 101.Filtering material 100 with fold shape structure 101 is compared to table The filter area of filtering material can be greatly improved for the smooth filtering material in face, to promote filter efficiency.

When including also the metal mesh supporting layer 130 in the repertoire layer of filtering material 100, according to above-mentioned fold Shape structure 101, then metal mesh supporting layer 130 is in addition to can be along the direction opposite with filtering direction to being located in filtering material 100 Outside functional layer before metal mesh supporting layer 130 is supported, it is also provided with the fold wave 101c progress to fold shape structure 101 Conformal effect is positioned, can prevent fold wave 101c from deforming to avoid the gap between fold wave 101c not to a certain extent Unanimously.

Further as shown in figs. 1-7, include: using the filter assemblies 200 of above-mentioned filtering material 100

Filter house 210, the filter house 210 include any one of the above filtering material 100, and the filtering material 100 have fold shape structure 101；

Positioning region 220, the positioning region 220 include being arranged on 100 periphery of filtering material to limit filtering material 100 Inside it and by the two sides of filtering material 100 outwardly open posting 221；And

Sealing 230, the sealing 230 include be arranged between filtering material 100 and positioning region 220 to prevent to Filtrate penetrates the sealing material in battery limit (BL) domain in posting 221 without filtering material 100.

It is to configure one for filtering material 100 that the filter assemblies 200, which are in the case where application above-mentioned filtering material 100, The whole removable a kind of concrete mode designed loaded on standalone modules of parents equipment such as filters, consequently facilitating to filter assemblies It individually manufactured, sold, installation and replacement.

It may be noted that above-mentioned filter assemblies 200 can only not use above-mentioned filtering material 100.As long as having fold shape knot The filtering material of structure usually may be incorporated for the filter assemblies.

When the metal filtration layer 111 of above-mentioned filtering material 100 doubles as conductive layer, on the positioning region 220 of filter assemblies 200 The also settable conductive component 223 for being conductively connected with the metal filtration layer 111 in filtering material 100, while the metal Filter layer 111 is insulated in filter assemblies 200 and can be charged by the conduction of conductive component 223.

The conductive component 223 can be any conductor, be located on positioning region 220 and preferably with can be in filter assemblies 200 be installed in after the parents equipment such as filter automatically with mode that the electric connection terminal in the parents equipment such as filter contacts and Setting.

For example, can be arranged on positioning region 220 contact 223a (contact position can be located at posting 221 side, when Filter assemblies 200 are installed in the side of contact 223a after the parents equipment such as filter just and in the parents equipment such as filter Electric connection terminal contact), then will be contacted between the contact 223a and metal filtration layer 111 by copper ear 223b.

In one embodiment of above-mentioned filter assemblies 200, the sealing material of the sealing 230 is only to be adhered to Sealant between 100 periphery of filter material material and posting 221.

In the another embodiment of above-mentioned filter assemblies 200, the sealing material of the sealing 230 includes being located at filtering Material frontside edge sealing plate 231, between the medial surface of the sealing plate 231 and the face where corresponding filtering material frontside edge By passing through sealing glue sticking between sealing glue sticking, lateral surface and corresponding 221 medial surface of posting.

Sealing plate 231 will first can be bonded with to the filtering material of sealing plate 231 again after Nian Jie with filtering material 100 as a result, 100 are sealingly mounted in posting 221, therefore can be convenient for filtering material 100 being seal-installed on posting by sealing plate 231 In 221.But setting sealing plate 231 will increase the manufacturing cost of filter assemblies and occupy some spaces.

In the another embodiment of above-mentioned filter assemblies 200, the filtering material 100 is the pleat that a shape is rectangle Wrinkle shape structure, the one pair of them opposite side of the filtering material 100 are fold wave mode side 101a, and another pair opposite side is linear type side 101b, the posting 221 are the filtering where the linear type side 101b with the matched rectangle posting of filtering material 100 Face on material 100 passes through sealant respectively and is directly bonded with corresponding 221 medial surface of posting, fold wave mode side 101a It is bonded respectively by the plate 231 at least sealing together with corresponding 221 medial surface of posting.

As a result, the face on the filtering material 100 where the linear type side 101b pass through respectively sealant directly with it is corresponding 221 medial surface of posting bonding, and fold wave mode side 101a then respectively by the plate 231 at least sealing together with it is corresponding 221 medial surface of posting bonding.

Not only reached in this way by sealing plate 231 convenient for filtering material 100 to be seal-installed on to the mesh in posting 221 And fold wave mode side 101a can effectively be sealed, in addition, also save the usage quantity of sealing plate 231, moreover, by It in the face on the filtering material 100 where the 101b of linear type side and is to be bonded face-to-face between corresponding 221 medial surface of posting To can reach good sealing effect.

In order to which filtering material 100 is preferably fixed and sealed, the posting 221 includes: side positioning framework 221a is provided with sealing material between the side positioning framework 221a and filtering material 100；Upper positioning frame body 221b, it is described on Positioning frame body 221b is arranged in the upper end of side positioning framework 221a and extends along the top margin of side positioning framework 221a；And it is lower fixed Position framework 221c, the lower positioning frame body 221c are arranged in the lower end of side positioning framework 221a and along the bottoms of side positioning framework 221a Side extends.Sealant can be used in sealing material between the posting 221 and filtering material 100.

In above-mentioned posting 221, thereon positioning frame body 221b preferably with the split type connection of side positioning framework 221a, in order to Upper positioning frame body 221b is installed on side positioning framework 221a again after being packed into filtering material 100 into posting 221.

It on this basis, by the floor design of upper positioning frame body 221b is preferably the upper end being used for side positioning framework 221a The step surface 221b1 of adaptation, and it is covered with the sealant between upper positioning frame body 221b and side positioning framework 221a substantially Two parallel planes on the step surface in this way, not only can be convenient the installation positioning of positioning frame body 221b, but also can ensure Sealing effect of the upper positioning frame body 221b to filtering material 100.

Upper positioning frame body 221b and lower positioning frame body 221c can limit filtering material 100, it is preferably limited It makes in side positioning framework 221a.

In above-mentioned filter assemblies 200, filtering of the filtering material 100 with fold shape structure 101 compared to smooth surface The filter area that filtering material can be greatly improved for material, to promote filter efficiency；But fold shape in use process The fold wave 101c of structure 101 may be deformed, and caused the gap between fold wave 101c inconsistent, finally resulted on filtering material The filtration flux of distribution is uneven.

In view of the above-mentioned problems, the positioning region 220 of above-mentioned filter assemblies 200 may include being arranged in 100 side of filtering material The conformal component 222 of fold, the conformal component 222 of fold may include the multipair adjacent pleat for being arranged at intervals at filtering material 100 Supporter between ripple 101c.

By being arranged at intervals on the conformal component 222 of fold between the multipair adjacent pleats wave 101c of filtering material 100 Supporter come prevent fold wave 101c deform, so that it is guaranteed that the uniformity for the filtration flux being distributed on filtering material 100.

Preferably, above support by being filled in the positioning glue between the multipair adjacent pleats wave 101c and solidified respectively 222a is constituted, and the supporter formed in this way is at low cost, does not allow convenient for making and can bond together with fold wave 101c It is easy to fall off.

Further, the positioning glue 222a can be only filled in respectively between the wave crest of corresponding adjacent pleats wave 101c, To reduce laying area of the positioning glue 222a on filtering material, influence of the positioning glue to filter efficiency is reduced.

The positioning glue 222a is filled in the depth in the gap between the wave crest of corresponding adjacent pleats wave 101c preferably not More than 1.5 centimetres, 1.2 centimetres, 1 centimetre, 0.8 centimetre or 0.5 centimetre.

The positioning glue 222a is filled in depth and filtering in the gap between the wave crest of corresponding adjacent pleats wave 101c The factors such as the characteristic of material are related.For example, positioning glue 222a is not easy only to be filled in correspondence respectively when filtering material is softer Between the wave crest of adjacent pleats wave 101c, because being positioned such that glue 222a is difficult to play the work for effectively supporting fold wave 101c With.

And the non-deformability of the metal filtration layer 111 of the filtering material 100 on above-mentioned filter assemblies 200 is higher, and The metal filtration layer 111 preferably mainly has ideal surface by metal filtration layer that powder sintered metal porous material is constituted Roughness is only filled in correspondence so as to which positioning glue 222a setting can be realized positioning glue 222a in metal filtration layer surface respectively Effect between the wave crest of adjacent pleats wave 101c.

The positioning glue 222a can also form continuous positioning tree lace in the side of filtering material 100.At this moment, the fold Conformal component 222 may include at least two positioning tree laces not being overlapped each other that 100 side of filtering material is arranged in.

The relevance filtering component in innovation and creation that another step combines Fig. 1-7 and 9 pair of present specification to be related to below The manufacturing method of one embodiment is illustrated.

I. the blank of the repertoire layer of stack filter material is obtained

Fig. 1 is the exploded view of the blank of the repertoire layer of stack filter material.Fig. 2 is whole function of stack filter material The schematic diagram of the blank of ergosphere.

As shown in Figs. 1-2, the blank of the repertoire layer of stack filter material is respectively included as metal filtration layer 111 Blank, the blank as fibrous filter layer 112, the blank as chemical filtering layer 120 and the base as metal mesh supporting layer 130 Part, they are independent component.

Wherein, the blank of metal filtration layer 111 is mainly made of the copper-nickel alloy of powder sintered formation, belongs to thickness ≤ 200 microns and folding flexible metal film.

The powder sintered metal that the blank of the metal filtration layer 111 has netted skeleton and is filled in skeleton mesh Porous material (copper-nickel alloy), and the average pore size of the metal filtration layer 111 is set between 40-90 microns.

The blank of fibrous filter layer 112 uses a kind of superfine fiber filter material bought from market, filtering accuracy Fibrous filter layer can be made to the removal rate of the dust of partial size >=2.5 μm in gas to be filtered 98% or more.

The blank of chemical filtering layer 120 is made of a kind of volatile organic matter filter layer 121, specially formaldehyde filter layer, It includes ventilative supporters and the Formaldehyde decomposition catalyst being attached on ventilative supporter, wherein the ventilative supporter uses Commercially available PP (polypropylene) breathable films, the Formaldehyde decomposition catalyst use the Formaldehyde decomposition developed by present applicant Catalyst, mainly by the MnO of δ crystal form₂The sub-micron of formation-micron order petal-shaped particle is constituted, and the sub-micron-is micro- The diameter of meter level petal-shaped particle is mainly distributed between 0.3-5 microns.

The blank of metal mesh supporting layer 130 uses the stainless (steel) wire bought from market.

Above-mentioned blank is stacked gradually, is topmost the blank of metal filtration layer 111, is fibrous filter layer down 112 blank, then be the blank of chemical filtering layer 120 down, it is finally the blank of metal mesh supporting layer 130.

It misplaces, also takes at above-mentioned four kinds in subsequent forming process in order to avoid these are stacked up blank Setting can prevent them from generating the technological means of the local connection structure 140 of translation between the blank of functional layer.

Local connection structure 140 specifically uses a kind of along the spaced riveting parts 141 in filtering material edge, each riveting Fitting 141 is connect with the blank of above-mentioned four kinds of functional layers simultaneously respectively.

The structure of above-mentioned riveting parts 141 is similar with commercially available stapler pin structure, i.e., the U-shaped metal nail structure to be bent inwards by bipod At.The blank of above-mentioned four kinds of functional layers is clamped between the interconnecting piece on the head of U-shaped metal nail and the portion that bends inwards of foot, At this moment, it attaches but is not bonded between two layers of blank of arbitrary neighborhood in the blank of these four functional layers.

II. the mistake that integrated deformation processing is shaped to specific shape is carried out to the blank of the repertoire layer of stack filter material Filter material material

Fig. 3 is to show after the blank of the repertoire layer of stack filter material is integrally folded into the fold shape structure of filtering material It is intended to.Fig. 4 is the schematic diagram for filling and freezing solidly on the positioning glue between the multipair adjacent pleats wave of filtering material.Fig. 9 is Fig. 4 institute Show the photo in kind of structure.

As shown in figure 3, the blank of the repertoire layer of stack filter material, which is carried out one, folds processing (by existing Folding apparatus is implemented), it is the pleat of filtering material 100 by the blank one folding forming of the repertoire layer of stack filter material Wrinkle shape structure 101.

Since the blank of the repertoire layer of stack filter material is already provided with riveting parts 141 in advance, in one Fold the blank as metal filtration layer 111, the blank as fibrous filter layer 112 when processing, as chemical filtering layer 120 It blank and will not misplace as arbitrary portion in the blank of metal mesh supporting layer 130.

As shown in figure 3, for the ease of subsequent operation, also using the positioning of fold wave after forming fold shape structure 101 Tooling 400.Fold wave positioning tool 400 is strip and determines correspondingly with the fold wave 101c with fold shape structure 101 Position slot, the fold wave 101c of fold shape structure 101 can be respectively clamped into corresponding locating slot.

Different fold wave positioning tools 400 can be set simultaneously in fold shape structure 101.For example, in fold shape structure Two fold wave positioning tools 400, two fold waves positioning of 101 top of fold shape structure are respectively equipped with above and below in the of 101 Respectively close to the edge of fold shape structure 101, two fold wave positioning tools 400 of the lower section of fold shape structure 101 divide tooling 400 Not close to the edge of fold shape structure 101.In this way, the overall structure of fold shape structure 101 will be by stable holding.

The fold shape structure 101 that wave positioning tool 400 is kept will be crimped to be placed in the gluing equipment specially designed, make gold Belong to filter layer 111 upward.The fold shape structure 101 that the belt-driven of gluing equipment is crimped the holding of wave positioning tool 400 is flat Row movement, the direction of motion are consistent with the length direction of fold wave positioning tool 400.

It is provided with syringe above the conveyer belt of gluing equipment, when the fold shape for being crimped the holding of wave positioning tool 400 When structure 101 is by below syringe, syringe positions glue to the over-injected of fold shape structure 101.Since injection positions glue When syringe along the fold wave 101c of filtering material 100 fluctuation direction and 100 relative motion of filtering material be therefore injected into The positioning glue 222a on 111 surface of metal filtration layer eventually forms continuous positioning tree lace.

Pass through note of the relative velocity and syringe between control fold shape structure 101 and syringe within the unit time The amount of penetrating, it can be ensured that enter the positioning glue 222a between each adjacent pleats wave 101c in gap and be only filled in corresponding adjacent pleats It is solidified when between the wave crest of wave 101c.

In this embodiment, positioning glue 222a is filled in the depth in the gap between the wave crest of corresponding adjacent pleats wave 101c Degree is only 0.5 centimetre or so (as shown in Figure 9).

When the conformal component 222 of fold after setting completed, then fold wave positioning tool 400 of dismantling.

Due to any in metal filtration layer 111, fibrous filter layer 112, chemical filtering layer 120 and metal mesh supporting layer 130 It attaches but is not bonded (as shown in figure 9, the visible independent different function layer from filtering material section), no between successive functional layers The problem of existing filtration resistance increases when can make as functional layer bonding.

Also, due to metal filtration layer 111, fibrous filter layer 112, chemical filtering layer 120 and metal mesh supporting layer 130 it Between needs individually to manufacture because material and function are different, only attaching but will not bond between them and be more advantageous to promotion filter material The production efficiency of material.

Simultaneously as the blank of the repertoire layer of stack filter material is shaped to specific shape through integrated deformation processing Filtering material makes shape, structure between the functional layer attached each other in filtering material almost the same again in this way, and being capable of phase Mutually support.

Since filtering material 100 passes through the conformal component 222 of fold and metal mesh supporting layer 130 meeting in filtering material respectively Wind side and air side are positioned and are supported to filtering material 100, ensure that the longer service life of filtering material.

III. assembling forms filter assemblies

Fig. 5 is the schematic diagram that sealing plate is installed on filtering material.Fig. 6 is that filtering material is put into the signal before posting Figure.Fig. 7 is the structural schematic diagram of filter assemblies.

It is the fold shape structure that a shape is rectangle, the filtering material in view of filtering material 100 as shown in Fig. 2,5 and 6 100 one pair of them opposite side is fold wave mode side 101a, and another pair opposite side is linear type side 101b, and the posting 221 is With the matched rectangle posting of filtering material 100, for convenient for filtering material 100 to be encapsulated in posting 221, by filtering material Before 100 are put into posting 221, each fold wave mode side 101a is installed into plate 231 sealing together by sealant correspondence respectively.

Further, since each fold wave mode side 101a has installed plate 231 sealing together by sealant correspondence respectively, simultaneously Positioning glue 222a is additionally provided on filtering material 100, therefore, the linear type side 101b of filtering material 100 is not easy activity, may be inconvenient In the face on the subsequent filtering material 100 by where the linear type side 101b pass through respectively sealant directly with corresponding positioning 221 medial surface of frame bonding.In order to solve this problem, there are multiple independent functional layers in view of filtering material 100, it can be individually by institute The removing of 111 part of metal filtration layer on the filtering material 100 where the 101b of linear type side is stated, to utilize the gold being stripped Belong to filter layer 111 (referring to Fig. 5) and is directly bonded with corresponding 221 medial surface of posting by sealant.

As shown in fig. 6, filtering material 100 is put into posting 221, at this moment, make the filtering where the 101b of linear type side Face (the i.e. above-mentioned metal filtration layer 111 being stripped) on material 100 respectively by sealant directly with corresponding posting 221 medial surfaces bonding, and keep fold wave mode side 101a then viscous with corresponding 221 medial surface of posting by sealing plate 231 respectively It connects.

It may refer to the related content before this specification about the otherwise assembling of filter assemblies 200, herein no longer It repeats.In short, obtaining 200 finished product of filter assemblies by process above.

Fig. 8 is a kind of structural schematic diagram of the filter for the innovation and creation that present specification is related to.As shown in figure 8, In In the one embodiment for the filter in innovation and creation that present specification is related to, filter 300 includes air inlet 310, row Air port 320 and the air duct between air inlet 310 and exhaust outlet 320 are equipped with above-mentioned filter assemblies 200 on the air duct, The conducting of windward side and air inlet 310, air side and the exhaust outlet 320 of the filter assemblies 200 are connected.

Above-mentioned filter 300 can be doubled as by the air conditioner with air filtering function.Due to the special knot of filtering material 100 Structure makes the thinner thickness of filter assemblies 200, which can be directly installed in existing domestic air conditioning.

In addition, the filter 300 run when also alternative make filter assemblies 200 metal filtration layer 111 charge or not Electrification.

Content in relation to Formaldehyde decomposition catalyst in the innovation and creation being specially related to below to present specification is said It is bright.In following explanation, embodiment " embodiment A1 ", " embodiment A2 ", " embodiment A3 " in relation to Formaldehyde decomposition catalyst Deng (and so on) indicate.Embodiment " the embodiment B1 ", " embodiment B2 ", " embodiment of related Formaldehyde decomposition catalysis felt B3 " etc. (and so on) indicate.

Embodiment A1

Formaldehyde decomposition catalyst is obtained by raw material hybrid reaction of potassium permanganate, manganese sulfate and water, specifically: by permanganic acid Potassium is configured as the liquor potassic permanganate that concentration is 95 grams per liters and is placed in the first titration tank, and manganese sulfate is configured as concentration It is placed in the second titration tank for the manganese sulfate solution of 70 grams per liters, in the first titration tank in potassium permanganate and the second titration tank The ratio between amount of substance is 4:3 between manganese sulfate, if the volume of the liquor potassic permanganate in the first titration tank is benchmark volume, benchmark Volume is set as 50 liters, then the manganese sulfate solution volume in the second titration tank according to above-mentioned condition and combines potassium permanganate and manganese sulfate Molecular weight calculating be approximately equal to 50 liters；Then first is titrated respectively the sulphur in the liquor potassic permanganate and the second titration tank in tank Sour manganese solution is added dropwise in 100 liters of volume of the bottom water stored in advance in mixing reactor simultaneously, and titration time is set as 10 minutes (it is molten first to be titrated simultaneously the manganese sulfate in liquor potassic permanganate and the second titration tank in tank in 10 minutes time cycles Liquid is all added dropwise), then mixed liquor be sufficiently stirred 2 hours at 80 DEG C；Finally from mixing after the reaction was completed Centrifugal dehydration obtains Formaldehyde decomposition catalyst in liquid.Gained Formaldehyde decomposition catalyst is cleaned, dried and dispersed again.

Figure 10 is the scanning electron microscope (SEM) photograph of the Formaldehyde decomposition catalyst of embodiment A1, and figure (a)-(d) in Figure 10 is respectively aobvious The photo of the visual field chosen on slide glass when microcosmic survey without tendency.Figure 11 is the X-ray of Formaldehyde decomposition catalyst shown in Figure 10 Diffraction (XRD) figure.

According to Fig.10, the Formaldehyde decomposition catalyst of embodiment A1 is mainly by sub-micron-micron order petal-shaped particle institute It constitutes.Wherein, the diameter (i.e. partial size) of micron order petal-shaped particle is mainly distributed between 1-3 microns, submicron order petal-shaped The diameter of particle is mainly distributed between 0.1-1 microns.

Further look at it can be found that these sub-micron-micron order petal-shaped particle is often in aggregating state, and due to The diameter of grain is unevenly distributed, and a large amount of submicron order petal-shaped particles are randomly distributed around petal-shaped particle in the micron-scale, Improve the specific surface area after sub-micron-micron order petal-shaped particle agglomeration gets up.

According to Figure 11, in conjunction with (001) of δ crystal form manganese dioxide (JCPDS 80-1089), (002), (111) crystal face Standard diffraction peak, and by document " the controllable preparation condition research of different crystal forms manganese dioxide, Wang Ge etc., inorganic chemicals industry, In August, 2017 " is it can be confirmed that sub-micron-micron order petal-shaped particle of the Formaldehyde decomposition catalyst of embodiment A1 is δ crystal form MnO₂。

Embodiment A2

Formaldehyde decomposition catalyst is obtained by raw material hybrid reaction of potassium permanganate, manganese sulfate and water, specifically: by permanganic acid Potassium is configured as the liquor potassic permanganate that concentration is 60 grams per liters and is placed in the first titration tank, and manganese sulfate is configured as concentration It is placed in the second titration tank for the manganese sulfate solution of 70 grams per liters, in the first titration tank in potassium permanganate and the second titration tank The ratio between amount of substance is 1 between manganese sulfate, if the volume of the liquor potassic permanganate in the first titration tank is benchmark volume, reference body Product is set as 50 liters, then the manganese sulfate solution volume in the second titration tank according to above-mentioned condition and combines potassium permanganate and manganese sulfate Molecular weight is calculated；Then first is titrated respectively the manganese sulfate solution in the liquor potassic permanganate and the second titration tank in tank It is added dropwise in 100 liters of volume of the bottom water stored in advance in mixing reactor simultaneously, titration time is set as 10 minutes, then 80 Mixed liquor be sufficiently stirred 2 hours at DEG C；Finally centrifugal dehydration obtains Formaldehyde decomposition from mixed liquor after the reaction was completed Catalyst.Gained Formaldehyde decomposition catalyst is cleaned, dried and dispersed again.

The Formaldehyde decomposition catalysis that Electronic Speculum observes determining embodiment A2 is scanned to the Formaldehyde decomposition catalyst of embodiment A2 Agent meets the feature being mainly made of sub-micron-micron order petal-shaped particle, and sub-micron-micron order petal-shaped particle is specific Diameter distribution it is similar with the Formaldehyde decomposition catalyst of embodiment A1.

The X-ray diffraction that the Formaldehyde decomposition catalyst of embodiment A2 carries out is tested and determines that the Formaldehyde decomposition of embodiment A2 is urged The sub-micron of agent-micron order petal-shaped particle is the MnO of δ crystal form₂。

Embodiment A3

Formaldehyde decomposition catalyst is obtained by raw material hybrid reaction of potassium permanganate, manganese sulfate and water, specifically: by permanganic acid Potassium is configured as the liquor potassic permanganate that concentration is 110 grams per liters and is placed in the first titration tank, and manganese sulfate is configured as concentration It is placed in the second titration tank for the manganese sulfate solution of 120 grams per liters, in the first titration tank in potassium permanganate and the second titration tank The ratio between amount of substance is 1.1 between manganese sulfate, if the volume of the liquor potassic permanganate in the first titration tank is benchmark volume, benchmark Volume is set as 50 liters, then the manganese sulfate solution volume in the second titration tank according to above-mentioned condition and combines potassium permanganate and manganese sulfate Molecular weight be calculated；Then the manganese sulfate titrated respectively by first in the liquor potassic permanganate and the second titration tank in tank is molten Liquid is added dropwise in 100 liters of volume of the bottom water stored in advance in mixing reactor simultaneously, and titration time is set as 10 minutes, is then existed Mixed liquor be sufficiently stirred 2 hours at 80 DEG C；Finally centrifugal dehydration obtains formaldehyde point from mixed liquor after the reaction was completed Solve catalyst.Gained Formaldehyde decomposition catalyst is cleaned, dried and dispersed again.

The Formaldehyde decomposition catalysis that Electronic Speculum observes determining embodiment A3 is scanned to the Formaldehyde decomposition catalyst of embodiment A3 Agent meets the feature being mainly made of sub-micron-micron order petal-shaped particle, and sub-micron-micron order petal-shaped particle is specific Diameter distribution it is similar with the Formaldehyde decomposition catalyst of embodiment A1.

The Formaldehyde decomposition catalysis that X-ray diffraction tests determining embodiment A2 is carried out to the Formaldehyde decomposition catalyst of embodiment A3 The sub-micron of agent-micron order petal-shaped particle is the MnO of δ crystal form₂。

Embodiment A4

Formaldehyde decomposition catalyst is obtained by raw material hybrid reaction of potassium permanganate, manganese sulfate and water, specifically: by permanganic acid Potassium is configured as the liquor potassic permanganate that concentration is 95 grams per liters and is placed in the first titration tank, and manganese sulfate is configured as concentration It is placed in the second titration tank for the manganese sulfate solution of 70 grams per liters, in the first titration tank in potassium permanganate and the second titration tank The ratio between amount of substance is 4:3 between manganese sulfate, if the volume of the liquor potassic permanganate in the first titration tank is benchmark volume, benchmark Volume is set as 100 liters, then the manganese sulfate solution volume in the second titration tank according to above-mentioned condition and combines potassium permanganate and sulfuric acid The molecular weight calculating of manganese is approximately equal to 100 liters；Then first is titrated respectively in the liquor potassic permanganate and the second titration tank in tank Manganese sulfate solution simultaneously be added dropwise in 200 liters of volume of the bottom water stored in advance in mixing reactor, titration time is set as 18 Minute, then mixed liquor be sufficiently stirred 2 hours at 80 DEG C；The finally centrifugal dehydration from mixed liquor after the reaction was completed Obtain Formaldehyde decomposition catalyst.Gained Formaldehyde decomposition catalyst is cleaned, dried and dispersed again.

The Formaldehyde decomposition catalysis that Electronic Speculum observes determining embodiment A4 is scanned to the Formaldehyde decomposition catalyst of embodiment A4 Agent meets the feature being mainly made of sub-micron-micron order petal-shaped particle, and sub-micron-micron order petal-shaped particle is straight Formaldehyde decomposition catalyst all increases of the inhomogeneities compared with embodiment A1 of diameter distribution.

The Formaldehyde decomposition catalysis that X-ray diffraction tests determining embodiment A2 is carried out to the Formaldehyde decomposition catalyst of embodiment A4 The sub-micron of agent-micron order petal-shaped particle is the MnO of δ crystal form₂。

Embodiment A5

Formaldehyde decomposition catalyst is obtained by raw material hybrid reaction of potassium permanganate, manganese sulfate and water, specifically: by permanganic acid Potassium is configured as the liquor potassic permanganate that concentration is 95 grams per liters and is placed in the first titration tank, and manganese sulfate is configured as concentration It is placed in the second titration tank for the manganese sulfate solution of 70 grams per liters, in the first titration tank in potassium permanganate and the second titration tank The ratio between amount of substance is 4:3 between manganese sulfate, if the volume of the liquor potassic permanganate in the first titration tank is benchmark volume, benchmark Volume is set as 300 liters, then the manganese sulfate solution volume in the second titration tank according to above-mentioned condition and combines potassium permanganate and sulfuric acid The molecular weight calculating of manganese is approximately equal to 300 liters；Then first is titrated respectively in the liquor potassic permanganate and the second titration tank in tank Manganese sulfate solution simultaneously be added dropwise in 600 liters of volume of the bottom water stored in advance in mixing reactor, titration time is set as 35 Minute, then mixed liquor be sufficiently stirred 2 hours at 80 DEG C；The finally centrifugal dehydration from mixed liquor after the reaction was completed Obtain Formaldehyde decomposition catalyst.Gained Formaldehyde decomposition catalyst is cleaned, dried and dispersed again.

Figure 12 is the scanning electron microscope (SEM) photograph of the Formaldehyde decomposition catalyst of embodiment A5, and figure (a)-(d) in Figure 12 is respectively aobvious The photo of the visual field chosen on slide glass when microcosmic survey without tendency.According to Figure 12, the Formaldehyde decomposition of embodiment A5 is catalyzed Agent is mainly made of sub-micron-micron order petal-shaped particle.Wherein, the diameter of micron order petal-shaped particle is mainly distributed on 1- Between 4 microns, the diameter of submicron order petal-shaped particle is mainly distributed between 0.3-1 microns.

Further look at it can be found that these sub-micron-micron order petal-shaped particle is often in aggregating state, and due to The diameter of grain is unevenly distributed, and a large amount of submicron order petal-shaped particles are randomly distributed around petal-shaped particle in the micron-scale (Formaldehyde decomposition catalyst of this phenomenon compared to embodiment A1 becomes apparent), so that sub-micron-micron order petal-shaped particle Specific surface area after reuniting with getting up is larger.The X-ray diffraction test that the Formaldehyde decomposition catalyst of embodiment A5 carries out is determined real Sub-micron-micron order petal-shaped the particle for applying the Formaldehyde decomposition catalyst of an A5 is the MnO of δ crystal form₂。

Speculate δ crystal form MnO₂The volume of particle diameter distribution inhomogeneities and raw material liquor potassic permanganate or manganese sulfate solution It is related to corresponding titration time, further speculate when the volume of raw material liquor potassic permanganate or manganese sulfate solution is larger and corresponding Titration time it is longer when, the crystal grain for the forming core that takes the lead in is based on growing up.

Embodiment A6

Formaldehyde decomposition catalyst is obtained by raw material hybrid reaction of potassium permanganate, manganese sulfate and water, specifically: by permanganic acid Potassium is configured as the liquor potassic permanganate that concentration is 95 grams per liters and is placed in the first titration tank, and manganese sulfate is configured as concentration It is placed in the second titration tank for the manganese sulfate solution of 70 grams per liters, in the first titration tank in potassium permanganate and the second titration tank The ratio between amount of substance is 4:3 between manganese sulfate, if the volume of the liquor potassic permanganate in the first titration tank is benchmark volume, benchmark Volume is set as 50 liters, then the manganese sulfate solution volume in the second titration tank according to above-mentioned condition and combines potassium permanganate and manganese sulfate Molecular weight calculating be approximately equal to 50 liters；Then first is titrated respectively the sulphur in the liquor potassic permanganate and the second titration tank in tank Sour manganese solution is added dropwise in 100 liters of volume of the bottom water stored in advance in mixing reactor simultaneously, and titration time is set as 10 minutes, Then mixed liquor be sufficiently stirred 2 hours at 80 DEG C；Hereafter centrifugal dehydration obtains from mixed liquor after the reaction was completed Formaldehyde decomposition catalyst；Finally, centrifugal dehydration obtains Formaldehyde decomposition catalyst from mixed liquor after the reaction was completed.Again to gained Formaldehyde decomposition catalyst carries out alkali cleaning, cleaning, drying and dispersion.

The alkali cleaning refers to is washed with lye PARA FORMALDEHYDE PRILLS(91,95) decomposition catalyst.The present embodiment is specifically to urge Formaldehyde decomposition Agent is added in deionized water, and a certain amount of lye is then added, and so that solution ph is modulated 9-11, finally centrifugal dehydration obtains first again Aldehyde decomposition catalyst.

Comparative example 1

Formaldehyde decomposition catalyst is obtained using potassium permanganate, dehydrated alcohol as raw material hybrid reaction, specifically: by potassium permanganate It is configured to the liquor potassic permanganate that concentration (mass percent) is 1.25%, takes 4 raising potassium manganate solutions and 1 liter of dehydrated alcohol mixed Stirring is closed, is reacted 10 hours at normal temperature, centrifugal dehydration obtains Formaldehyde decomposition catalyst from mixed liquor after the reaction was completed, then Gained Formaldehyde decomposition catalyst is cleaned, dried and dispersed.

Figure 13 is the scanning electron microscope (SEM) photograph of the Formaldehyde decomposition catalyst of comparative example 1, and figure (a)-(b) in Figure 13 is respectively micro- The photo of the visual field chosen on slide glass when observation without tendency.According to Figure 13, the Formaldehyde decomposition catalyst master of comparative example 1 To be reunited by nano-scale particle.The X-ray diffraction that the Formaldehyde decomposition catalyst of comparative example 1 carries out is tested and determines comparative example 1 Formaldehyde decomposition catalyst is the MnO of δ crystal form₂。

It is carried out respectively using the Formaldehyde decomposition catalyst of embodiment A1, embodiment A5, comparative example 1 except formaldehyde performance test. Test philosophy and method are as follows: one closed Laboratory Module of production having a size of 550mm × 415mm × 315mm, and is equipped with formaldehyde and infuses Loophole and concentration of formaldehyde test instrumentation, the two sides of Laboratory Module have air outlet and air inlet, between air outlet and air inlet It is connected with the pipeline that diameter is 200mm, blower is installed on pipeline, in addition, one group of flange is also equipped on pipeline, for loading and unloading The Formaldehyde decomposition catalyst of test.

Before test, quantitative Formaldehyde decomposition catalyst is uniformly laid on a piece of PP breathable films, laying amount is 0.04g/cm², then Formaldehyde decomposition catalyst is covered with another PP breathable films again, then double team is had into Formaldehyde decomposition catalysis The two panels PP breathable films of agent clamp between the flanges, so that Formaldehyde decomposition catalyst is fixed in pipeline.

When test, first the formalin of certain volume and concentration is heated and is passed through in formaldehyde injection port injection experiments cabin, Make initial concentration of formaldehyde 1.4-2.0mg/m in Laboratory Module³, when concentration of formaldehyde increases to peak and stablizes 1 point in Laboratory Module Zhong Hou, starting blower simultaneously starts timing, and every concentration of formaldehyde in 5 minutes record cabins, length of testing speech is set to 15 minutes, during which blower Power keeps certain (wind speed is about 3m/s).After 15 minutes, then injects formaldehyde in a manner described again and repeat 15 minutes Test.Every kind of Formaldehyde decomposition catalyst repeats 4 tests.

Formaldehyde decomposition catalyst progress respectively using embodiment A1, embodiment A5, comparative example 1 is above-mentioned except formaldehyde performance is surveyed Trying concentration of formaldehyde time history plot in obtained Laboratory Module is respectively Figure 14, Figure 15 and Figure 16.

It can calculate to obtain according to Figure 14, Figure 15 and Figure 16: be carried out using the Formaldehyde decomposition catalyst of embodiment A1 It states except the formaldehyde efficiency of removing that it's Cheng Qian 10 minutes pasts formaldehyde performance test is 76.2%, uses the Formaldehyde decomposition catalyst of embodiment A5 Carrying out the above-mentioned formaldehyde efficiency of removing that Cheng Qian 10 minutes are spent except formaldehyde performance test is 81.2%, uses the Formaldehyde decomposition of comparative example 1 It is 64% that catalyst, which carries out the above-mentioned formaldehyde efficiency of removing that Cheng Qian 10 minutes are spent except formaldehyde performance test,.

The Formaldehyde decomposition except formaldehyde efficiency better than comparative example 1 of the Formaldehyde decomposition catalyst of embodiment A1 and embodiment A5 is urged Agent removes formaldehyde efficiency, thus it is speculated that possible cause is: although the Formaldehyde decomposition catalyst of comparative example is made of nano-scale particle, They be easy reunite, especially when being attached on ventilative supporter after, these subtle particle aggregations be bulk, it is unfavorable instead It is come into full contact in the formaldehyde in air；And the Formaldehyde decomposition catalyst of embodiment is since the diameter of particle is unevenly distributed, greatly Amount submicron order petal-shaped particle is randomly distributed around petal-shaped particle in the micron-scale, so that sub-micron-micron order petal Shape particle agglomeration is conducive to come into full contact with the formaldehyde in air after getting up.

In addition, being shown by several tester's Olfactometries (test sample is placed in 15 centimeters under tester's nose) Formaldehyde decomposition catalysis strange smell of the Formaldehyde decomposition catalyst of embodiment A6 compared to embodiment A1-A5 is substantially reduced.

Related Formaldehyde decomposition catalyst can be right directly as product in the innovation and creation that present specification is related to The product is implemented the behaviors such as to manufacture, sell and use, and can also apply on formaldehyde catalytic decomposition felt and PARA FORMALDEHYDE PRILLS(91,95) catalytic decomposition Felt is implemented the behaviors such as to manufacture, sell and use.Figure 17 is that a kind of Formaldehyde decomposition is urged in the innovation and creation that are related to of present specification Change the scanning electron microscope (SEM) photograph of felt.As shown in figure 17, related Formaldehyde decomposition is catalyzed felt in the innovation and creation that present specification is related to Including ventilative supporter 121a and the Formaldehyde decomposition catalyst (belonging to decomposition catalyst 121b) being attached on ventilative supporter.

As shown in figure 17, outside and master of the Formaldehyde decomposition catalyst distribution in the material for constituting ventilative supporter 121a It is filled in the hole between the material for constituting ventilative supporter.

In addition, the Formaldehyde decomposition catalyst generally also includes the bonding agent being distributed on the Formaldehyde decomposition catalyst, So as to which relatively more firm is attached on ventilative supporter 121a.The preferred acrylic acid series bonding agent of the bonding agent or polyurethane Be bonding agent, these two types of bonding agents will not the service performance of PARA FORMALDEHYDE PRILLS(91,95) decomposition catalyst adversely affect.

If the weight of Formaldehyde decomposition catalyst is set as Formaldehyde decomposition divided by the area of the windward side of ventilative supporter 121a Opposite adhesion amount of the catalyst on ventilative supporter 121a, the Formaldehyde decomposition based on the innovation and creation that present specification is related to Catalyst removes formaldehyde efficiency, then the opposite adhesion amount is generally 40g/m²More than, to keep Formaldehyde decomposition catalysis felt basic Effect of formaldehyde is removed with commercially acceptable.

Due to adhering to after Formaldehyde decomposition catalyst on ventilative supporter 121a especially when the opposite adhesion amount is 40g/ m²When above, the permeability of ventilative supporter 121a can be substantially reduced, in order to have Formaldehyde decomposition catalysis felt both preferably Except effect of formaldehyde has reasonable gas permeability simultaneously again, it is proposed that the ventilative supporter 121a uses the air in 100 pa pressure difference Permeability >=3000m³/m²The permeable fiber felt of hour.

Since the related filtering material of innovation and creation that present specification is related to includes different function layer, and formaldehyde point Solution catalysis felt is only used as one of functional layer, and in order to guarantee the gas permeability of entire filtering material, the ventilative supporter 121a is excellent Choosing is using air permeability >=5500m in 100 pa pressure difference³/m²The permeable fiber felt of hour.

Above-mentioned " air permeability when 100 pa pressure difference " can be according to its unit " m³/m²Hour " be understood.It is specific and Speech, " air permeability when 100 pa pressure difference " refers to: under 100 pa pressure differences per hour in per unit square meter area formaldehyde point The cubic meter numerical value of the air passed through on solution catalysis felt.

It can be obtained from the prior art with the permeable fiber felt for meeting above-mentioned gas permeability requirements, such as PP fibrofelt, PET fiber felt etc..Not only gas permeability is preferable for PP fibrofelt, PET fiber felt, but also the performances such as intensity are also more suitable for.

Formaldehyde catalytic decomposition felt in the innovation and creation that present specification is related to acts not only as the function of filtering material One of ergosphere, there is also other application modes, and at this moment, form, the property of the ventilative supporter 121a in felt is catalytically decomposed in formaldehyde Energy etc. can also make larger change.

It, can in order to preferably remove formaldehyde in a higher occasion of concentration of formaldehyde (such as Furniture Factory, coating factory etc.) Using foam-like porous supporter as the ventilative supporter 121a in formaldehyde catalytic decomposition felt, to adhere to more formaldehyde point Solve catalyst.Felt is catalytically decomposed for formaldehyde independently installed on special modality, at this moment, the supporter 121a that breathes freely can be using support Net, and supporting network can be mesh grid, punching net, oblique pull net etc..

Embodiment B1

The Formaldehyde decomposition catalyst of embodiment A1 and dispersing agent, bonding agent are mixedly configured into feed liquid, wherein bonding agent is Acrylic acid, dispersing agent are water.Ventilative supporter 121a uses PP fibrofelt.The feed liquid is attached to PP fibre by slurry technique Tie up felt.The band being made of when slurry PP fibrofelt immerses in feed liquid under the drive of transfer roller, then vertical from feed liquid table Face is risen, then is formed by channel by being located between a pair of of scraper above feed liquid, each scraper is equal in this pair of of scraper Along the surface parallel motion of corresponding PP fibrofelt, to apply the Formaldehyde decomposition catalyst perpendicular to PP fibrofelt surface Extruding force, thus the Formaldehyde decomposition catalyst being attached on PP fibrofelt is squeezed be scattered in the material for constituting ventilative supporter it Between hole in, finally PARA FORMALDEHYDE PRILLS(91,95) catalytic decomposition felt is dried to obtain formaldehyde catalytic decomposition felt again.Formaldehyde point is detected after drying Solving opposite adhesion amount of the catalyst on PP fibrofelt is about 40g/m²。

Embodiment B2

On the basis of embodiment B1, increase opposite adhesion amount of the Formaldehyde decomposition catalyst on PP fibrofelt, after drying Detecting opposite adhesion amount of the Formaldehyde decomposition catalyst on PP fibrofelt is about 60g/m²。

Embodiment B3

On the basis of embodiment B1, increase opposite adhesion amount of the Formaldehyde decomposition catalyst on PP fibrofelt, after drying Detecting opposite adhesion amount of the Formaldehyde decomposition catalyst on PP fibrofelt is about 80g/m²。

Embodiment B4

On the basis of embodiment B1, increase opposite adhesion amount of the Formaldehyde decomposition catalyst on PP fibrofelt, after drying Detecting opposite adhesion amount of the Formaldehyde decomposition catalyst on PP fibrofelt is about 100g/m²。

Embodiment B5

On the basis of embodiment B1, increase opposite adhesion amount of the Formaldehyde decomposition catalyst on PP fibrofelt, after drying Detecting opposite adhesion amount of the Formaldehyde decomposition catalyst on PP fibrofelt is about 120g/m²。

Embodiment B6

On the basis of embodiment B2, increase extrusion process between slurry technique and baking step.The extrusion process Including a pair of of pressure roller, this is to channel is formed between pressure roller, each pressure roller is along the catalysis point of corresponding formaldehyde in this pair of of pressure roller Felt surface parallel rolling is solved, so that it is saturating further to disperse composition for the Formaldehyde decomposition catalyst being attached on PP fibrofelt extruding In hole between the material of gas supporter.

It is carried out respectively using the formaldehyde catalytic decomposition felt of embodiment B1-B5 except formaldehyde performance test, test philosophy and method It carries out with PARA FORMALDEHYDE PRILLS(91,95) decomposition catalyst except the principle and method of formaldehyde performance test are almost the same, difference is directly to urge formaldehyde Change and decomposes felt clamping between the flanges without using PP breathable films.

Felt all-round property testing figure is catalytically decomposed in the formaldehyde that Figure 18 is embodiment B1-B5.In Figure 18, abscissa is formaldehyde point Opposite adhesion amount of the catalyst on PP fibrofelt is solved, wherein " 40 " refer to that adhesion amount be about 40g/m², corresponding embodiment B1 Formaldehyde be catalytically decomposed felt, remaining and so on.Ordinate is air quantity, unit m on the left of Figure 18³/m²Hour, meaning is every The cubic meter numerical value of the air passed through on the Formaldehyde decomposition catalysis felt of per unit square meter area in hour, the bigger expression of the numerical value Formaldehyde catalytic decomposition felt gas permeability is better, otherwise poorer.Ordinate is formaldehyde removal rate on the left of Figure 18, can according to Figure 14-16 The homogeneous data of display data is calculated.

As shown in figure 18, it is carried out using the formaldehyde catalytic decomposition felt of embodiment B1-B5 above-mentioned except formaldehyde performance test process First 10 minutes formaldehyde efficiency of removing gradually rises up to 72% from about 66%, though there is certain rising, ascensional range is little.

Permeability test is carried out using the formaldehyde catalytic decomposition felt of embodiment B1-B5 respectively, i.e., test is under certain pressure difference Cube for the air that (being specifically 10 Pascals) passes through on the Formaldehyde decomposition catalysis felt of per unit square meter area in per hour Rice numerical value.It is right when carrying out permeability test using the formaldehyde catalytic decomposition felt of embodiment B1-B5 since meter readings limit A kind of test of formaldehyde catalytic decomposition felt is that 6 same formaldehyde are catalytically decomposed to felts to be superimposed test, in this way may be used To reduce flow, to meet meter readings limitation.

As shown in figure 18, the gas permeability of the formaldehyde catalytic decomposition felt of embodiment B1-B5 successively reduces, when opposite adhesion amount is 70g/m²Left and right (60g/m²-70g/m²Between) when formaldehyde catalytic decomposition felt gas permeability with except formaldehyde efficiency integrate it is optimal.

Although it is 120g/m that opposite adhesion amount is worked as in display in Figure 18²When formaldehyde catalytic decomposition felt gas permeability be 0, but it is this Phenomenon can not illustrate that this formaldehyde catalytic decomposition felt is airtight, this is because being by 6 same formaldehyde catalytic decompositions when test What felt was superimposed, and actually every formaldehyde catalytic decomposition felt has certain gas permeability.

Figure 19 is that the Formaldehyde decomposition catalyst distribution uniformity pair of felt is catalytically decomposed in the formaldehyde of embodiment B2 and embodiment B6 According to figure.The comparative diagram is translumination observation that two kinds of formaldehyde catalytic decomposition felts are put together, is clear that implementation by observation The Formaldehyde decomposition catalyst distribution clearly more uniform and smooth of the formaldehyde catalytic decomposition felt of example B6.

The related content of the application is illustrated above.Those of ordinary skill in the art are in the feelings illustrated based on these The application will be realized under condition.Above content based on the application, those of ordinary skill in the art are not making creativeness Every other preferred embodiment and embodiment obtained, shall fall within the protection scope of the present application under the premise of labour.

Claims

It include physics filter layer in repertoire layer, it is characterised in that: the object 1. filtering material, including different function layer Managing filter layer includes metal filtration layer and fibrous filter layer；The metal filtration layer and the fibrous filter layer weight before and after filtering direction It is folded.
2. filtering material as described in claim 1, it is characterised in that: the metal filtration layer can double as conductive layer；The fibre Dimensional filter layer doubles as the insulating layer to conductive layer.
3. filtering material as described in claim 1, it is characterised in that: the metal filtration layer is mainly more by powder sintered metal Porous materials are constituted.
4. filtering material as claimed in claim 3, it is characterised in that: the metal filtration layer is a kind of thickness≤200 micron And folding flexible metal film.
5. filtering material as claimed in claim 3, it is characterised in that: the metal filtration layer contains netted skeleton and fills out Fill the powder sintered metal porous material in skeleton mesh.
6. filtering material as described in claim 1, it is characterised in that: average pore size≤200 micron of the metal filtration layer, 190 microns, 180 microns, 170 microns, 160 microns, 150 microns, 140 microns, 130 microns, 120 microns, 110 microns or 100 Micron；And average pore size >=5 micron of the metal filtration layer, 10 microns, 20 microns, 30 microns, 40 microns, 50 microns, 60 Micron, 70 microns, 80 microns, 90 microns or 100 microns.
7. filtering material as described in claim 1, it is characterised in that: the fibrous filter layer imitates the filtering of solid particulate matter Rate is higher than metal filtration layer to the filter efficiency of solid particulate matter.
8. filtering material as claimed in claim 7, it is characterised in that: the fibrous filter layer is mainly fine by glass fibre, PP At least one of dimension, PET fiber, varicosity PTFE fiber fiber filter material is constituted；And/or the fibrous filter layer Mainly it is made of superfine fiber filter material.
9. filtering material as described in claim 1, it is characterised in that: the metal filtration layer and fibrous filter layer are adjacent to each other Two surfaces between attach but do not bond.
10. filtering material as described in claim 1, it is characterised in that: include chemical filtering layer in the repertoire layer；Institute It states physical filtering layer and forward laps with chemical filtering layer along filtering direction.
11. filtering material as claimed in claim 10, it is characterised in that: the chemical filtering layer includes at least one volatility Organic filtration layer；At least one volatile organic matter filter layer includes the decomposition catalyst of corresponding volatile organic matter And/or adsorbent.
12. filtering material as claimed in claim 11, it is characterised in that: it is described at least one volatile organic matter filter layer be Formaldehyde filter layer, the decomposition catalyst is mainly by the MnO of δ crystal form₂The sub-micron of formation-micron order petal-shaped particle institute structure At.
13. filtering material as claimed in claim 11, it is characterised in that: the fibrous filter layer is a kind of with electrical insulating property The fibrous filter layer of matter.
14. filtering material as claimed in claim 11, it is characterised in that: the fibrous filter layer and at least one volatilization Property organic filtration layer two surface adjacent to each other between attach but do not bond.
15. the filtering material as described in any one of claim 1 to 14 claim, it is characterised in that: the whole function It include metal mesh supporting layer in ergosphere；The physical filtering layer forward laps with metal mesh supporting layer along filtering direction.
16. filtering material as claimed in claim 15, it is characterised in that: the physical filtering layer, chemical filtering layer and metal Net supporting layer is successively overlapped before and after filtering direction.
17. filtering material as claimed in claim 16, it is characterised in that: it is described at least one volatile organic matter filter layer with Metal mesh supporting layer is attached but is not bonded between adjacent two surfaces each other.
18. the filtering material as described in any one of claim 1 to 17 claim, it is characterised in that: the filtering material With fold shape structure and stack the filtering material repertoire layer blank through integrated folding forming be the fold shape knot Structure.
19. the filtering material as described in any one of claim 1 to 18 claim, it is characterised in that: its repertoire Being provided between adjacent at least two one functional layers in layer can prevent from generating in parallel between adjacent at least two one functional layers The local connection structure of displacement.
20. filtering material as claimed in claim 19, it is characterised in that: it is described part connection structure include can with but necessarily Along the spaced riveting parts in filtering material edge, the riveting parts are connect with adjacent at least two one functional layers respectively； Alternatively, it is described part connection structure include can with but necessarily along the spaced bonding point in filtering material edge.
21. filter assemblies characterized by comprising

Filter house, the filter house include filtering material described in any one of claim 1 to 20 claim, the mistake Filter material material has fold shape structure；

Positioning region, the positioning region is including setting on filtering material periphery to limit inside it and will filter filtering material The two sides of material outwardly open posting；And

Sealing, the sealing include being arranged between filtering material and positioning region to prevent object to be filtered without filtering Material and the sealing material for penetrating battery limit (BL) domain in posting.
22. filter assemblies as claimed in claim 21, it is characterised in that: be provided with and be used for and filtering material on the positioning region In metal filtration layer be conductively connected conductive component；The metal filtration layer is insulated in filter assemblies and can pass through The conduction of conductive component and charge.
23. filter assemblies as claimed in claim 21, it is characterised in that: the sealing material includes being adhered to filtering material week Sealant between side and posting.
24. filter assemblies as claimed in claim 21, it is characterised in that: the sealing material includes being located at filtering material edge Plate at least sealing together；Lead between the medial surface of the plate at least sealing together and the face where corresponding filtering material edge It crosses between sealant bonding, lateral surface and corresponding posting medial surface through sealing glue sticking.
25. filter assemblies as claimed in claim 24, it is characterised in that: the filtering material is the pleat that a shape is rectangle Wrinkle shape structure, the one pair of them opposite side of the filtering material are fold wave mode side, and another pair opposite side is linear type side；The posting For with the matched rectangle posting of filtering material；It is straight that the face on filtering material where the linear type side passes through sealant respectively Connect and be bonded with corresponding posting medial surface, fold wave mode side pass through respectively the plate at least sealing together with it is corresponding fixed Position frame medial surface bonding.
26. filter assemblies as claimed in claim 21, which is characterized in that the posting includes: side positioning framework, the side Sealing material is provided between positioning frame body and filtering material；Upper positioning frame body, the upper positioning frame body are arranged in side positioning frame The upper end of body simultaneously extends along the top margin of side positioning framework；And lower positioning frame body, the lower positioning frame body are arranged in side positioning frame The lower end of body simultaneously extends along the bottom edge of side positioning framework.
27. filter assemblies as claimed in claim 26, it is characterised in that: the upper positioning frame body and side positioning framework are split type Connection；The bottom surface of the upper positioning frame body has the step surface for being adapted to the upper end of side positioning framework, is located at upper posting Sealant between body and side positioning framework is covered with two parallel planes on the step surface substantially.
28. the filter assemblies as described in any one of claim 21 to 27 claim, it is characterised in that: the positioning region It further include the conformal component of fold that filtering material side is set；The conformal component of fold includes being arranged at intervals at filtering material Multipair adjacent pleats wave between supporter.
29. filter assemblies as claimed in claim 28, it is characterised in that: above support by being filled in the multipair phase respectively Between adjacent fold wave and the positioning glue of solidification is constituted；It is described positioning glue be only filled in respectively corresponding adjacent pleats wave wave crest it Between.
30. filter, including air inlet, exhaust outlet and the air duct between air inlet and exhaust outlet, it is characterised in that: described Filter assemblies described in any one of claim 21 to 29 claim are installed, the filter assemblies are windward on air duct Side is connected with air inlet, air side is connected with exhaust outlet.
31. filter as claimed in claim 30, it is characterised in that: the filter is by the air-conditioning with air filtering function Device doubles as.
32. filter method, it is characterised in that: pass through the filtering material of claim 1 to 20, the filtering group of claim 21 to 29 Part or the filter of claim 30 to 31 filter the air purification；Wherein, metal filtration layer electrification or not charged.