JP2010253455A - Filter for air conditioner - Google Patents

Filter for air conditioner Download PDF

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JP2010253455A
JP2010253455A JP2009110102A JP2009110102A JP2010253455A JP 2010253455 A JP2010253455 A JP 2010253455A JP 2009110102 A JP2009110102 A JP 2009110102A JP 2009110102 A JP2009110102 A JP 2009110102A JP 2010253455 A JP2010253455 A JP 2010253455A
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filter
sheet
performance
air
medium
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Hiromoto Watanabe
裕元 渡邊
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Shinwa Corp
進和テック株式会社
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection
    • Y02A50/20Air quality improvement or preservation
    • Y02A50/23Emission reduction or control
    • Y02A50/234Physical or chemical processes, e.g. absorption, adsorption or filtering, characterised by the type of pollutant
    • Y02A50/2351Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
    • Y02A50/2353Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust the particulate matter coming from stationary sources, e.g. power plants, steel mills, smelters, cement plants, refineries or incinerators
    • Y02A50/2355Filters

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filter for an air conditioner that meets the expectation for a filter for an air conditioner having a suitable double structure, because a filer combined with an additional filter of low collection efficiency installed upstream for clogging prevention or two filters of different collection efficiency laid closely of which the upstream filter medium has low collection efficiency result in cost increase and are not satisfactory, in the case that a filter for an air conditioner of high collection efficiency to fine particles is intended to be installed in an air conditioning system. <P>SOLUTION: The filter for an air conditioner is made of two combined sheet filter mediums selected from the sheet filter mediums having a function of a prefilter, a medium or high performance filter, a quasi HEPA filter, a HEPA filter and a ULPA filter having each different collection efficiency, according to the dust concentration in air intake environments which changes depending on change of atmospheric dust and change of surroundings. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、空調用フィルタに関し、一般に、空調用フィルタが高性能になればなるほど、寿命が短くなる傾向があり、捕集性能と寿命とが両立し難い関係にある問題点を解決するようにしたものである。 The present invention relates to an air conditioning filter typically The more air-conditioning filter performance, tend to life is shortened, so that the collection performance and lifetime to solve the problems in the hard relationship both one in which the.

従来、微粒子に対して高い捕集効率を有する空調用フィルタを空調系統に設置する場合、目詰まり防止のため捕集効率の高い空調用フィルタの前に捕集効率の低いフィルタを配置したり、捕集効率の異なる2つのフィルタを密接に重ね合わせて前段フィルタに低い捕集機能をもたせた空調用フィルタが使用されているが、前者は、設置スペースの制約および構造の複雑化またはコストアップの観点から十分なものではなく、後者は、異なる2つのフィルタの内どちらか一方が目詰まりを起こしてしまった場合、空調用フィルタ全体を交換せざるを得ず、結果的にはコストアップにつながり十分なものではなかった。 Conventionally, high if the air-conditioning filter having a collection efficiency installed in the air conditioning system, or to place a low trapping efficiency filter before the air-conditioning filter high collection efficiency for the clogging prevention against particulates, Although air conditioning filter two filters having different trapping efficiency by closely overlapped remembering lower collecting function in front filter is used, the former, the constraints and the structure of the installation space of the complexity or cost from the viewpoint not sufficient, the latter is different if either of the two filters had clogged, it is inevitable to replace the entire air-conditioning filters, consequently leading to cost increase in It was not sufficient.

本発明は上述の課題を解決しょうとしたもので、目的の1つは、大気じんの変化や周囲環境の変化に応じて、ろ材を構成するシートろ材を見直し空調用フィルタの寿命が目標通り発揮できるようにした空調用フィルタを提供しょうとするものである。 The present invention has as you'll solve the problems described above, one of the purposes, in response to changes in the change and the environment surrounding the air dust, life exhibited as targeted air-conditioning filter reviewing sheet filter material forming the filter medium it is intended to'll provide air conditioning filters allow.

本発明のもう一つの目的は、ろ材を構成するシートろ材の寿命が同時に達するようにした空調用フィルタを提供しょうとするものである。 Another object of the present invention is one in which the life of the sheet filter material forming the filter media and you'll provide air conditioning filter to reach at the same time.

本発明のもう一つの目的は、ろ材の寿命が長寿命でありながら圧力損失の低い空調用フィルタを提供しょうとするものである。 Another object of the present invention are those that you'll provide low air-conditioning filter pressure loss life of filter media yet long life.

本発明の第1の解決手段は、空調用フィルタの吸気環境の粉塵濃度に応じて、捕集効率の異なる2つのシートろ材を組み合わせたことを特徴とするものである。 First aspect of the present invention, depending on the dust concentration of the intake environment of the air conditioning filter, is characterized in that a combination of two sheet filter media having different trapping efficiency.

本発明の第2の解決手段は、捕集効率の異なる2つのシートろ材は、プレフィルタの性能をもったシートろ材、中高性能フィルタの性能をもったシートろ材、準HEPAフィルタの性能をもったシートろ材、HEPAフィルタの性能をもったシートろ材、ULPAフィルタの性能をもったシートろ材から選択して組み合わせたことを特徴とするものである。 Second aspect of the present invention, two sheets filter media of different collection efficiency, the sheet filter medium having a performance of the pre-filter, sheet filter medium having a performance of the medium high efficiency filter, with the performance of the semi-HEPA filter sheet filter material, the sheet filter material having performance of HEPA filters, and is characterized in that a combination selected from a sheet filter medium having a performance of ULPA filter.

本発明の第3の解決手段は、プレフィルタの性能をもったシートろ材が、JIS B 9908型式3(質量法)で平均捕集率が50〜90%であることを特徴としたものである。 The third solving means of the present invention, a sheet filter medium having a performance of the pre-filter is obtained by wherein the average collection rate in JIS B 9908 Model 3 (mass method) is 50-90% .

本発明の第4の解決手段は、中高性能フィルタの性能をもったシートろ材が、JIS B 9908型式2(比色法)で平均捕集率が65%以上であることを特徴とするものである。 The fourth solving means of the present invention, a sheet filter medium having a performance of the medium performance filters, having an average collection rate in JIS B 9908 Model 2 (colorimetric method) is characterized in that 65% or more is there.

本発明の第5の解決手段は、準HEPAフィルタの性能をもったシートろ材が、JIS B 9908型式1(計数法)で0.3μm粒子に対し95%以上の捕集率を有することを特徴とするものである。 The fifth solving means of the present invention, a sheet filter medium having a performance of quasi HEPA filter, and characterized in that it has a JIS B 9908 Type 1 collection rate of 95% or more relative to 0.3μm particles (counting) it is intended to.

本発明の第6の解決手段は、HEPAフィルタの性能をもったシートろ材が、JIS B 9908型式1(計数法)で0.3μm粒子に対し99.97%以上の捕集率を有することを特徴とするものである。 The sixth solving means of the present invention, a sheet filter medium having a performance of HEPA filters, and having a JIS B 9908 Type 1 (counting method) collection rate of more than 99.97% to 0.3μm particles it is intended.

本発明の第7の解決手段は、ULPAフィルタの性能をもったシートろ材が、JIS B 9927( JIS B 9908型式1準拠)で0.15μm粒子に対し99.9995%以上であることを特徴とするものである。 Seventh solving means of the present invention, a sheet filter medium having a performance of ULPA filter, characterized in that at JIS B 9927 (JIS B 9908 Type 1-compliant) with at least 99.9995% to 0.15μm particles is there.

ここで、プレフィルタの性能をもったシートろ材は、長繊維のグラスファイバーからなり、上流側の比較的目の粗い層と、下流側の密度の高い層とからなる「密度勾配構造」で、弾力の優れたシートに仕上げたものである。 Here, the sheet filter material having the performance of the pre-filter consists of glass fibers long fibers, made of a relatively coarse layer of the upstream side, the high density of the downstream-side layer in the "density gradient structure" one in which finished in excellent sheet of elasticity. そして、シートろ材の厚みは0.5mm程度である。 Then, the thickness of the sheet filter material is about 0.5mm.

中高性能フィルタの性能をもったシートろ材は、繊維径5〜20μm程度のグラスファイバー同志にバインダで接着した粉塵保持容量の大きな上流側用途に適したグラスファイバー製シート、あるいは同じグラスファイバーからなり撥水加工を施したより密な下流側用途に適したグラスファイバー製シートからできあがっている。 Sheet filter media having the performance of the mid-high efficiency filter consists fiberglass sheet or the same glass fiber, suitable for large upstream application of dust holding capacity bonded with a binder to fiberglass comrades of about fiber diameter 5~20μm repellent and it completed the fiberglass sheets suitable for dense downstream applications than subjected to water processing. そしてシートろ材の厚みは0.5mm程度である。 And thickness of the sheet filter material is about 0.5mm.

準HEPAフィルタの性能をもったシートろ材は、繊維径1〜5μm程度のグラスファイバー同志にバインダで接着した粉塵保持容量の大きな上流側用途に適したグラスファイバー製シート、あるいは同じグラスファイバーからなり撥水加工を施したより密な下流側用途に適したグラスファイバー製シートからできあがっている。 Sheet filter media having the performance of the semi-HEPA filter repellent made from a large upstream fiberglass sheet suitable for use or the same glass fiber, dust holding capacity bonded with a binder to fiberglass comrades of about fiber diameter 1~5μm and it completed the fiberglass sheets suitable for dense downstream applications than subjected to water processing. そして、ろ材の厚みは0.5mm程度である。 Then, the thickness of the filter material is about 0.5mm.

HEPAフィルタの性能をもったシートろ材は、繊維径0.5〜1.0μm程度のグラスファイバー同志にバインダで接着した粉塵保持容量の大きな上流側用途に適したグラスファイバー製シート、あるいは同じグラスファイバーからなり撥水加工を施したより密な下流側用途に適したグラスファイバー製シートからできあがっている。 Sheet filter media having the performance of HEPA filters, fiberglass sheet suitable for large upstream application of dust holding capacity bonded with a binder to fiberglass comrades of about fiber diameter 0.5~1.0μm or the same glass fiber, and it completed the fiberglass sheets suitable for dense downstream applications than water-repellent made. そして、シートろ材の厚みは0.5mm程度である。 Then, the thickness of the sheet filter material is about 0.5mm.

ULPAフィルタの性能をもったシートろ材は、繊維径0.5μm以下のグラスファイバー同志にバインダで接着したグラスファイバー製シートから構成されている。 Sheet filter media having the performance of ULPA filter is composed of a glass fiber sheet bonded with a binder in the following fiberglass comrades fiber diameter 0.5 [mu] m. そして、シートろ材の厚みは0.5mm程度である。 Then, the thickness of the sheet filter material is about 0.5mm.

そして中高性能フィルタの製作は、プレフィルタの性能と撥水加工を施したシートろ材と、下流側用途に適した中高性能フィルタの性能をもち、撥水加工を密に施したシートろ材とからなる2重構造のろ材、または粉塵保持容量の大きな上流側用途に適した中高性能フィルタの性能をもったシートろ材と、撥水加工を施した、より密な下流側用途に適した中高性能フィルタの性能をもったシートろ材とからなる2重構造のろ材をジグザグ状に折り畳んで、ひだ折り加工し、ひだ折り加工したろ材間に、セパレータまたはビード状接着剤を挟み込んで外枠内に接着材で気密に取り付けて設けている。 The fabrication of the medium high efficiency filter is composed of a sheet filter medium having been subjected to performance and water-repellent prefilter has the performance of high-performance filters in suitable downstream applications, a sheet filter material which tightly water-repellent filter media double structure, or subjected the sheet filter medium having a performance of high-performance filters in suitable big upstream application of dust holding capacity, a water-repellent, high-performance filters in suitable denser downstream applications folding the filter medium of the double structure consisting of a sheet filter material having a performance in a zigzag, pleated, and between pleated the filter material, with an adhesive to the outer frame by sandwiching the separator or bead-like adhesive It is provided attached to the air-tight.

また、準HEPAフィルタの製作は、粉塵保持容量の大きな上流側用途に適した中高性能フィルタの性能をもったシートろ材と、撥水加工を施したより密な下流側用途に適した準HEPAフィルタの性能をもったシートろ材とからなる2重構造のろ材、または粉塵保持容量の大きな上流側用途に適した準HEPAフィルタの性能をもったシートろ材と、撥水加工を施した、より密な下流側用途に適した中高性能フィルタの性能をもったシートろ材とからなる2重構造のろ材をジグザグ状に折り畳んで、ひだ折り加工し、ひだ折り加工したろ材間にセパレータ、またはビード状接着剤を挟み込んで、外枠内に接着材で気密に取り付けて設けている。 Also, manufacture of semi-HEPA filter, quasi HEPA filter suitable for dense downstream applications than subjected the sheet filter medium having a performance of high-performance filter, the water-repellent in appropriate for large upstream application of dust holding capacity a great sheet filter material suitable for upstream applications with the performance of the semi-HEPA filter, water-repellent, more dense filter media double structure consisting of a sheet with filter media having performance or dust holding capacity folding the filter medium of the double structure consisting of a sheet filter material having a performance of high-performance filters in suitable downstream applications zigzag, pleated, and pleated by a separator between the filter material or a bead-like adhesive, sandwiches the is provided attached hermetically with an adhesive in the outer frame.

さらに、HEPAフィルタの製作は、粉塵保持容量の大きな上流側用途に適した準HEPAフィルタの性能をもったシートろ材と撥水加工を施したより密な下流側用途に適したHEPAフィルタの性能をもったシートろ材とからなる2重構造のろ材、または粉塵保持容量の大きな上流側用途に適したHEPAフィルタの性能をもったシートろ材と、撥水加工を施したより密な下流側用途に適したHEPAフィルタの性能をもったシートろ材とからなる2重構造のろ材を、ジグザグ状に折り畳んで、ひだ折り加工し、ひだ折り加工したろ材間にセパレータ、またはビード状接着剤を挟み込んで外枠内に接着材で気密に取り付けて設けている。 Moreover, fabrication of HEPA filters, the performance of the HEPA filter suitable for dense downstream applications than was subjected to sheet filter media and water-repellent having the performance of the quasi-HEPA filter suitable for large upstream application of dust holding capacity with a sheet filter medium having a performance of HEPA filter suitable for large upstream application of the filter material or dust holding capacity of the double structure consisting of a sheet filter material was suitable for dense downstream applications than water-repellent and the filter medium of a double structure composed of a sheet with filter media having performance HEPA filter, is folded in a zigzag shape, pleated, and the outer frame by sandwiching the separator or the bead-like adhesive, between pleated the filter media It is provided airtightly in adhesive within.

さらに、ULPAフィルタの製作は、粉塵保持容量の大きな上流側用途に適した準HEPAフィルタの性能をもったシートろ材と、ULPA フィルタの性能をもったシートろ材とからなる2重構造のろ材、または粉塵保持容量の大きな上流側用途に適したHEPAフィルタの性能をもったシートろ材と、ULPA フィルタの性能をもったシートろ材とからなる2重構造のろ材をジグザグ状に折り畳んで、ひだ折り加工し、ひだ折り加工したろ材間にセパレータ、またはビード状接着剤を挟み込んで外枠内に接着材で気密に取り付けて設けている。 Moreover, fabrication of ULPA filters, filter media double structure consisting of a sheet filter medium having a performance of quasi HEPA filter suitable for large upstream application of dust holding capacity, a sheet filter media having the performance of ULPA filter, or a sheet filter medium having a performance of HEPA filter suitable for large upstream application of dust holding capacity, a filter medium of a double structure comprising a sheet filter medium having a performance of ULPA filter is folded in a zigzag shape, pleated and is provided mounted hermetically with an adhesive to the outer frame by sandwiching pleated and a separator between the filter material or a bead-shaped adhesive.

上記で述べた中高性能フィルタ、準HEPAフィルタ、HEPAフィルタ、ULPAフィルタを構成するシートろ材の組み合わせは、ひとつの例であって、これに限定されることなく種々変更しても何ら本発明の要旨を変更するものではない。 High-performance filter among those mentioned above, semi-HEPA filter, HEPA filter, the combination of sheet filter material forming the ULPA filter, the gist of a one embodiment, any present invention be variously modified without being limited to It does not change the.

上記課題解決による作用は次の通りである。 The operation of the above problems solved are as follows. ここで、フィルタの選定は天候、気象の変化や周囲環境の変化に応じて決められるがここでは中高性能フィルタの場合について述べる。 Here, we describe the case of a medium-performance filter selection filter weather, where it is determined according to changes in the weather changes or the surrounding environment.

まず、この中高性能フィルタでは、汚染空気がフィルタ外枠前面から送り込まれると、その汚染空気は、セパレータまたはビード状接着剤により形成された多数のろ材間の隙間を通過し、まず上流側の粉塵保持容量の大きなシートろ材により、微粉塵以上の大きさの粉塵がろ過集塵されて除去される。 First, in this in high efficiency filter, when the contaminated air is sent from the front filter outer frame, the contaminated air passes through the gaps between the plurality of filter media formed by a separator or a bead-like adhesive is first upstream dust the large sheets filtering media of the storage capacitor, dust fine dust size or more are removed by filtration dust collector. これによって、微粉塵のみとなった汚染空気は、次に撥水加工を施したより密なシートろ材に入り、微粉塵がろ過捕集され、これによって、清浄化された空気は、フィルタ外枠後面側に抜けていく。 Thus, contaminated air became fine dust only, then enters a dense sheet filter material than was subjected to water-repellent, fine dust is filtered collected, thereby, the cleaned air, the filter outer frame It escapes to the rear surface side. したがって、上記粉塵保持容量の大きな粉塵が捕集され、高密度のシートろ材に微粉塵のみが捕集されるようになることから、全体として粉塵の捕集容量が大となり、且つ高密度のシートろ材の捕集効率の向上、およびその寿命の延長が図れ、長期使用が可能となる。 Thus, large dust of the dust holding capacity is collected, since it becomes only the fine dust density of the sheet filter material is collected, the collecting capacity becomes large dust as a whole, and a high density of the sheet improvement in collection efficiency of the filter material, and Hakare prolongation of its life, it is possible to long-term use.

特に、粉塵がミストや潮解性を有する海塩粒子の場合は、上流側シートろ材に付着すると共に浸透して下流側シートろ材に拡散しかねないが、上流側シートろ材よりも下流側シートろ材に強い撥水効果をもたせているので、下流側シートろ材に飛び出してくることがない。 Particularly, in the case of sea salt particles dust having a mist or deliquescent, but could spread on the downstream side sheet filter medium permeates while adhering to the upstream side sheet filter material, on the downstream side sheet filter material of the upstream sheet filter material since remembering strong water-repellent effect, it never flies out to the downstream side sheet filter material.

また、異なる2つのシートろ材を重合することから、従来の一枚ものに比べろ材強度が大きくなっているので圧力損失がかなり大きくなっても、破損することなく使用可能となる。 Further, different from the two sheet filter media for polymerization, even if the pressure loss is fairly large because the filtration media strength than the conventional one-sheet is large, it becomes available without breaking.

上述したように、本発明の空調用フィルタは、次のような効果が得られる。 As described above, the air-conditioning filter of the present invention, the following effects can be obtained.

(1)周囲環境の変化に応じて、ろ材を構成する各シートろ材を選定出きるようにした上、気流方向の上流側を粉塵保持容量の大きなシートろ材としたので、多くの粉塵を保持でき、下流側シートろ材は、上流側シートろ材よりも撥水加工を施したより密なシートろ材を設けたので、低い圧力損失で長寿命の空調用フィルタを提供できる。 (1) in response to changes in the ambient environment, after having so as possible out selecting each sheet filter material forming the filter medium, since the upstream side of the airflow direction is larger sheet filter material of dust holding capacity, it can hold more dust , downstream sheet filter media, is provided with the dense sheet filter media than water-repellent than the upstream sheet filter material can be provided an air conditioning filter for long life with a low pressure loss.

(2)上流側のシートろ材で大きな粒子を粗取りするため、下流側のシートろ材の負担を大幅に低減できる。 (2) to take the large particles on the upstream side of the sheet filter material coarse, it is possible to significantly reduce the burden on the downstream side of the sheet filter material.

(3)気流方向の上流側から下流側に至る繊維構成の変化が最適な2段密度勾配となっているので、所要の捕集性能を満足しながら、ろ材の捕集量が平均化され、圧力損失の極端な増加を抑えて寿命が延びる。 (3) Since the change of the fiber structure extending from the upstream side to the downstream side of the airflow direction is the best 2-stage density gradient, while satisfying the required trapping performance, the amount of collected filter media are averaged, life extending suppress extreme increase in pressure loss.

(4)ろ材の寿命が延びることから、空気浄化装置の維持費の低減ができる。 (4) Since the life of the filter medium extend, it can reduce the maintenance costs of the air purifier.

(5)圧力損失の極端な増加を抑えることができることから、ファンなど駆動装置の運転費の省エネ化を計ることができる。 (5) Since it is possible to suppress an extreme increase in pressure loss, it is possible to measure the energy saving of the operating costs of the fan, such as drive.

(6)ろ材は2重構造となっているので、ろ材をひだ折り加工してフィルタとして組み立てる際、割れ、折り山不良などのトラブルを生じることがない。 (6) Since the filter medium has a double structure, when assembling the filter a filter medium pleated with cracking, it does not occur problems such crease defect.

本発明の一実施例を示す空調用フィルタの斜視図で、部分的に破断したものを示す。 A perspective view of the air conditioning filter showing an embodiment of the present invention, showing those partially cut away. 図1に表すX部の拡大図を示す。 It shows an enlarged view of the X portion depicted in Figure 1. 本発明の他の実施例を示す空調用フィルタの斜視図で、部分的に破断したものを示す。 A perspective view of the air conditioning filter showing another embodiment of the present invention, showing those partially cut away. 図3に表すY部の拡大図を示す。 It shows an enlarged view of a Y portion depicted in FIG.

以下、本発明の空調用フィルタを、添付図1〜4に基いて説明する。 Hereinafter, the air-conditioning filter of the present invention will be described with reference to the accompanying drawings 1-4.

図中、1は、空調用フィルタの外枠で、前後面開放の箱形状をしていて、この外枠1内に2重構造のろ材2が、図示するように全体的にコンパクトでありながら、ろ過面積を大きくすべくジグザグ状に折り曲げて装着されている。 In the figure, 1 is an outer frame of the air conditioning filter, have a box shape of the front and rear surfaces opened, filter medium 2 of a double structure in the outer frame 1 is, while being totally compact as shown is bent in a zigzag pattern in order to increase the filtering area is mounted. すなわち、図2に拡大して示されるように、そのジグザグ状に折り曲げられたろ材2の折り曲げ部3、3・・・相互間には、その折り曲げ線と直交する方向に波線を配置して波形板状のセパレータ4、4・・・を配置し、また、同様に図3およびその部分拡大した図4に示すように、外枠1内にはろ材2がジグザグ状に折り曲げて装着され、その外表面に糸状または紐状の接着樹脂5、5・・・を折込んで、多数の通風路6、6・・・が形成されている。 That is, as shown enlarged in FIG. 2, between its bent portions 3, 3 ··· mutual zigzag shape bent filter medium 2, by placing the wavy line in the direction perpendicular to the fold line waveform place the plate-like separator 4,4, ..., Furthermore, as also shown in FIGS. 3 and 4 were partially enlarged, the outer frame 1 mounted filter medium 2 is folded in a zigzag shape, the in Orikomin filamentous or string-like adhesive resin 5, 5 on the outer surface, a number of air passage 6, 6, ... are formed.

このような2重構造のろ材2は、グラスファイバーからなり、粉塵保持容量の大きな上流側のシートろ材7と同じグラスファイバーからなり、撥水加工を施したより密な下流側のシートろ材8を重ね合わせた密度勾配型構造となっている。 Filter medium 2 such double structure is made of fiberglass, made of the same fiberglass as large upstream side of the sheet filter material 7 of dust holding capacity, a sheet filter material 8 dense downstream of the water-repellent It has become superposed density-gradient structure.

さらに、上記重合した異なる2つのシートろ材7、8は、それぞれペーパー状のもので、互いに密度が異にされており、汚染空気の流れ込む方向に対して前面側に配置する上流側のシートろ材7は、大きな粉塵を捕集する比較的密度の低いもので、その後面側に配置する下流側のシートろ材8は、微粉塵を捕集する密度の高いものである。 Furthermore, the polymerized two different sheet filter media 7 and 8, intended respectively paper form, are different from the density with each other, the sheet filter material 7 on the upstream side to place the front side with respect to the direction of flow of contaminated air is intended less dense for collecting large dust, sheet filter material 8 of downstream side be placed on the rear surface side are those dense for collecting fine dust.

次に上述した構成の作動について説明すると、汚染空気が外枠1の前面側から送り込まれると、その汚染空気は、ろ材の折り曲げ部3、3・・・相互間の前面側に開放する多数の通風路6、6・・・に侵入し、そしてまず粉塵保持容量の大きな上流側のシートろ材7により微粉塵以上の大きさの粉塵が、ろ過捕集されて除去される。 Now be described the operation of the above-described construction, when contaminated air is sent from the front side of the outer frame 1, the contaminated air, a number of which opens to the front side between the bent portions 3, 3 ··· cross filter media invaded air passage 6,6, ..., and dust is first large by the upstream side in the sheet filter material 7 over the fine dust size of dust holding capacity, it is removed by filtration collected. これによって微粉塵のみとなった汚染空気は、次に密な下流側のシートろ材8に入り微粉塵がろ過捕集され、これによって清浄化された空気は、フィルタの後面側に抜けて行き、クリーンエアーとして供給される。 This contaminated air was only fine dust, then fine dust enters the sheet filter material 8 dense downstream is filtered collected, whereby the cleaned air is going to escape to the rear side of the filter, It is supplied as a clean air.

したがって、上記粉塵保持容量の大きな上流側のシートろ材7に大きな粉塵(塵埃をも含む、他も同じ)が捕集されて、密な下流側のシートろ材8には、微粉塵のみが捕集されるようになることから、全体として粉塵の捕集容量が大となり、かつ下流側のシートろ材8の捕集効率の向上、およびその寿命の延長が図れ、長期間使用が可能となる。 Therefore, (including the dust, and so the same) large dust big upstream side of the sheet filter material 7 in the dust holding capacity is collected is, in the sheet filter material 8 dense downstream, only the fine dust collection from it made it to be, as a whole collection capacity becomes large dust, and improve the collection efficiency of the downstream side of the sheet filter material 8, and Hakare prolongation of its life, it is possible to long-term use.

また、異なる2つのシートろ材7、8を重合し、密度勾配型構造としたことから、従来の一枚ものに比べ、ろ材強度が大である上、フィルタ使用中に圧力損失がかなり大きくなっても、破損などすることなく使用可能である。 Furthermore, to polymerize two different sheet filter media 7,8, since it has a density gradient structure, compared with the conventional single-sheet, on the filter media strength is large, the pressure loss in the filter use fairly large It can also be used without such damage.

次に空調用フィルタの製造方法について述べる。 Next a method for manufacturing the air conditioning filter.

[実施例1] [Example 1]
繊維径が30μm程度のグラスファイバーからなり、JIS B 9908型式3(質量法)で平均捕集率が50〜90%で、粉塵保持容量の大きなプレフィルタの性能をもった上流側のシートろ材と、繊維径が5〜20μm程度のグラスファイバーからなる撥水加工を施したJIS B 9908型式2(比色法)で平均捕集率が60%以上の中高性能フィルタの性能をもった下流側のシートろ材とを重ね合わせて、密度勾配をもたせたろ材を、外枠の中にジグザグ状に折込み、この折込んだろ材間に波形のセパレータまたはビード状接着剤を挟み込んで、外枠内に接着剤で接着し、一体化した下記表1に示す中高性能フィルタの機能をもった空調用フィルタを得た。 Fiber diameter is from 30μm about fiberglass, with 50-90% average collection rate in JIS B 9908 Model 3 (mass method), and the upstream side of the sheet filter material with a performance of a large pre-filter dust holding capacity , fiber diameter downstream of average collecting rate with the performance of the high efficiency filter within the 60% by JIS B 9908 type 2 water-repellent consisting of glass fibers of about 5 to 20 [mu] m (colorimetric method) and superposing the sheet filter material, bonding the filter media remembering density gradient, folding in a zigzag manner in the outer frame, sandwich the separator or bead-like adhesive of the waveform between the folded I'd wood, in the outer frame bonded with adhesive to obtain an air conditioning filter having a function of high performance filters in shown in table 1 were integrated.

この実施例における捕捉されたデータ濃度の実測値は、表2の通りである。 Measured values ​​of the captured data density in this example are shown in Table 2.

[実施例2] [Example 2]
繊維径が5〜20μm程度のグラスファイバーからなり、JIS B 9908型式2(比色法)で平均捕集率が60%以上で、粉塵保持容量の大きな中高性能フィルタの性能をもった上流側のシートろ材と、繊維径が1〜5μm程度のグラスファイバーからなる撥水加工を施したJIS B 9908型式1(計数法)で0.3μm粒子に対し95%以上の捕集率を有する準HEPAフィルタの性能をもつた下流側のシートろ材とを重ね合わせて、密度勾配をもたせたろ材を外枠の中にジグザグ状に折込み、この折込んだろ材間に波形のセパレータまたはビード状接着剤を挟み込んで、外枠内に接着剤で接着し、一体化した下記表1に示す準HEPAフィルタの機能をもった空調用フィルタを得た。 Fiber diameter is fiberglass of about 5 to 20 [mu] m, average collection rate of 60% or more JIS B 9908 Model 2 (colorimetric method), the upstream side with a performance of high-performance filters in large dust holding capacity a sheet filter medium, the fiber diameter is quasi HEPA filter with a 95% collection efficiency to 0.3μm particles with JIS B 9908 type 1 water-repellent consisting 1~5μm about fiberglass (counting method) by superimposing and downstream of the sheet filter material which has the capability, the filter media remembering density gradient folding in a zigzag manner in the outer frame, sandwich the separator or bead-like adhesive of the waveform between the folded I'd wood was glued to the outer frame, to obtain an air conditioning filter having a function of quasi HEPA filter shown in the following table 1 were integrated.

この実施例における捕捉されたデータ濃度の実測値は、表3の通りである。 Measured values ​​of the captured data density in this example are shown in Table 3.

[実施例3] [Example 3]
繊維径が5〜20μm程度のグラスファイバーからなり、JIS B 9908型式2(比色法)で平均捕集率が60%以上で、粉塵保持容量の大きな中高性能フィルタの性能をもった上流側シートと、繊維径が0.5〜1μm程度のグラスファイバーからなる、撥水加工を施したJIS B 9908型式1(計数法)で0.3μm粒子に対し99.97%以上の捕集率を有するHEPAフィルタの性能をもった下流側シートとを重ね合わせて、密度勾配をもたせたろ材を外枠の中にジグザグ状に折込み、この折込んだろ材間に、波形のセパレータまたはビード状接着剤を挟み込んで、外枠内周面とを接着剤で接着し、一体化した下記表1に示すHEPAフィルタの機能をもった空調用フィルタを得た。 Consists fiberglass about fiber diameter 5 to 20 [mu] m, JIS B 9908 Model 2 average collection rate of 60% or more (colorimetric method), upstream sheet having a large in the high-performance filter performance dust holding capacity When the fiber diameter of the glass fiber of about 0.5 to 1 [mu] m, the performance of the HEPA filter with a collection efficiency of more than 99.97% to 0.3μm particles JIS B 9908 water-repellent type 1 (counting method) superposing a downstream sheet having a filter media remembering density gradient folding in a zigzag manner in the outer frame, between the folded I'd wood, sandwich the separator or bead-like adhesive of the waveform, the outer frame bonds the inner peripheral surface with an adhesive to obtain an air conditioning filter having a function of HEPA filter shown in the following table 1 were integrated.

この実施例における捕捉されたデータ濃度の実測値は、表4の通りである。 Measured values ​​of the captured data density in this example are shown in Table 4.

なお、本実施例では本発明の一実施例を述べたもので、これに限定されることなく、種々変更しても何ら本発明の要旨を変更するものではない。 In this embodiment concerned with an embodiment of the present invention, without having to be limited to this, not to be construed as changing the gist of the present invention be modified in various ways.

本発明は空調用フィルタの吸気環境の粉塵濃度に応じて、ろ材を構成する捕集率の異なる2つのシートろ材の組み合わせを自由に選定できるようにしたので、高い捕集効率を維持しながら低い圧力損失で長寿命化を図ったもので、空気取り入れ用空調用フィルタとして最適なものである。 The invention in accordance with the dust concentration of the intake environment of the air conditioning filter, since the freely selected combination of collection rate two different sheet filter material constituting the filter medium, low while maintaining a high collection efficiency which was aimed to extend the life of a pressure loss is optimal as the air-conditioning filter intake air.

1・・・空調用フィルタの外枠 2・・・ろ材 3・・・折り曲げ部4・・・波形板状のセパレータ 5・・・糸状の接着樹脂 6・・・通風路 7・・・上流側のシートろ材 8・・・下流側のシートろ材 1 ... outer frame 2 ... filter material 3 ... bent portion 4 ... adhesive resin 6 ... air passage 7 ... upstream wave-shaped separator 5 ... thread of the air conditioning filter sheet filter material 8 ... downstream side of the sheet filter media

Claims (7)

  1. 空気取入れ口のフィルタ取付枠に捕集率の異なる2つのシートろ材を組み合わせて2重構造にしたろ材をジグザグ状に折り曲げ、且つその折り曲げ部相互間に波形のセパレータまたはビード接着剤を挟み込んで、ろ材全周を前後面開放の外枠に接着材で気密に取り付けた空調用フィルタにおいて、空調用フィルタの吸気環境の粉塵濃度に応じて捕集効率の異なる2つのシートろ材を組み合わせたことを特徴とする空調用フィルタ。 Bent by combining two sheets filter media of different collection rate in the filter mounting frame of the air inlet and the double structure filter material in a zigzag manner, and sandwich the separator or bead adhesive waveform between the bent portions mutually, characterized in the air-conditioning filter attached hermetically with an adhesive all around the filter material to the outer frame of the front and rear surfaces opened, that a combination of two different sheet filter media of collecting efficiency according to dust concentration of the intake environment of the air conditioning filter air-conditioning filter to.
  2. 前記捕集効率の異なる2つのシートろ材は、プレフィルタの性能をもったシートろ材、中高性能フィルタの性能をもったシートろ材、準HEPAフィルタの性能をもったシートろ材、HEPAフィルタの性能をもったシートろ材、ULPAフィルタの性能をもったシートろ材から選択して組み合わせたことを特徴とする請求項1記載の空調用フィルタ。 Two sheets filter media having the different collection efficiency, the sheet filter medium having a performance of the pre-filter, sheet filter medium having a performance of the medium high efficiency filter, sheet filter medium having a performance of semi HEPA filter, with the performance of the HEPA filter sheet filter media was air-conditioning filter according to claim 1, wherein the combination selected from a sheet filter medium having a performance of ULPA filter.
  3. 前記プレフィルタの性能をもったシートろ材が、JIS B 9908型式3(質量法)で平均捕集率が50〜90%であることを特徴とする請求項1記載の空調用フィルタ。 The sheet filter media performance with the prefilter, the air conditioning filter according to claim 1, wherein the average collection rate in JIS B 9908 Model 3 (mass method) is 50 to 90%.
  4. 前記中高性能フィルタの性能をもったシートろ材が、JIS B 9908型式2(比色法)で平均捕集率が65%以上であることを特徴とする請求項1記載の空調用フィルタ。 Sheet filter media having performance in said high performance filter, JIS B 9908 Model 2 air conditioning filter according to claim 1, wherein the average collecting rate (colorimetric method) is 65% or more.
  5. 前記準HEPAフィルタの性能をもったシートろ材が、JIS B 9908型式1(計数法)で0.3μm粒子に対し95%以上の捕集率を有することを特徴とする請求項1記載の空調用フィルタ。 The sheet filter medium having a performance of quasi HEPA filter, JIS B 9908 Type 1 air conditioning filter according to claim 1, characterized in that it has 95% or more collection rate to 0.3μm particles (counting) .
  6. 前記HEPAフィルタの性能をもったシートろ材が、JIS B 9908型式1(計数法)で0.3μm粒子に対し99.97%以上の捕集率を有することを特徴とする請求項1記載の空調用フィルタ。 The sheet filter medium having a performance of HEPA filters, JIS B 9908 Type 1 air conditioning filter according to claim 1, characterized in that it has a collection efficiency of more than 99.97% to 0.3μm particles (counting).
  7. 前記ULPAフィルタの性能をもったシートろ材が、JIS B 9927( JIS B 9908型式1準拠)で0.15μm粒子に対し99.9995%以上であることを特徴とする請求項1記載の空調用フィルタ。 The ULPA sheet filter medium having a performance of the filter, JIS B 9927 air conditioning filter according to claim 1, wherein the at (JIS B 9908 Type 1-compliant) to 0.15μm particles is not less than 99.9995%.
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