JPH0248018Y2 - - Google Patents
Info
- Publication number
- JPH0248018Y2 JPH0248018Y2 JP1983202403U JP20240383U JPH0248018Y2 JP H0248018 Y2 JPH0248018 Y2 JP H0248018Y2 JP 1983202403 U JP1983202403 U JP 1983202403U JP 20240383 U JP20240383 U JP 20240383U JP H0248018 Y2 JPH0248018 Y2 JP H0248018Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- filter
- resistant
- resistant adhesive
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000853 adhesive Substances 0.000 claims description 30
- 230000001070 adhesive effect Effects 0.000 claims description 30
- 238000012856 packing Methods 0.000 claims description 15
- 230000007797 corrosion Effects 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 12
- 238000000746 purification Methods 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 34
- 239000003518 caustics Substances 0.000 description 8
- 230000006866 deterioration Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000443 aerosol Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 239000012784 inorganic fiber Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Description
【考案の詳細な説明】
この考案は気体中のエアロゾル粒子を捕集して
気体を浄化するためのフイルタ装置に関するもの
であり、さらに詳しくは、比較的温度が高くかつ
腐食性物質を含有する気体の浄化処理用フイルタ
に関するものである。[Detailed description of the invention] This invention relates to a filter device for purifying gas by collecting aerosol particles in the gas. The present invention relates to a purification filter.
従来、微細なエアロゾルを効率よく除去する気
体浄化用フイルタとしては、第１図に示すように
ろ紙あるいは天然繊維、合成繊維、無機繊維等か
ら成るシート状のろ材をひだ状に折曲して形成し
たフイルタ素子１のひだ間に、アルミニウム、ス
テンレス等の金属箔を波形状に折曲したセパレー
タ２を介在させ、ろ過面を除く周囲にアスベスト
ガラスフアイバ、セラミツクフアイバ等の繊維状
パツキングまたは接着剤等の充填物４を充填して
外枠３で固定したフイルタが一般に用いられてい
た。 Conventionally, gas purification filters that efficiently remove fine aerosols have been made by folding filter paper or sheet-like filter media made of natural fibers, synthetic fibers, inorganic fibers, etc. into pleats, as shown in Figure 1. A separator 2 made of metal foil of aluminum, stainless steel, etc. bent into a wave shape is interposed between the folds of the filter element 1, and the surrounding area excluding the filtering surface is covered with fibrous packing such as asbestos glass fiber, ceramic fiber, adhesive, etc. A filter filled with a filler 4 and fixed with an outer frame 3 was generally used.
このようなフイルタはフイルタ素子１そのもの
の微細エアロゾルに対する捕集効率が極めて高い
にもかかわらず、比較的温度の高い気体の浄化に
際しては、加熱のくり返しによつてフイルタ素子
１と外枠３との間に隙間が生じ、フイルタ全体と
しての捕集効率が低下するという欠点があつた。 Although such a filter has extremely high collection efficiency for fine aerosols in the filter element 1 itself, when purifying relatively high temperature gas, the filter element 1 and the outer frame 3 are damaged due to repeated heating. There was a drawback that gaps were formed between the filters, reducing the collection efficiency of the filter as a whole.
そこで上記欠点を解消し、比較的温度の高い気
体に対しても安定した高捕集効率を得られる気体
浄化用フイルタとして、第２図に示すフイルタ
（実公昭58−37454）が提案されている。このフイ
ルタは、外枠３とフイルタ素子１の長手方向と直
角な端部との間に繊維状パツキング５を配置し、
その繊維状パツキング５とフイルタ素子１および
セパレータ２との間、および繊維状パツキング５
と外枠３との間を、耐熱性接着剤６で二重に気密
接着したもので、繊維状パツキング５のクツシヨ
ン効果と、フイルタ素子１と繊維状パツキング５
および繊維状パツキング５と外枠３との間の耐熱
性接着剤６の封止効果によつて、比較的高温の気
体を処理しても熱のくり返しによる劣化および取
扱いに伴う衝撃による劣化の少ないものであつ
た。しかしこのフイルタも、燃焼排ガスのような
比較的高温で、かつ塩化水素や硫黄酸化物等の腐
食性物質を含有する気体を処理する場合において
は、耐熱性接着剤６の腐食性ガスによる劣化に伴
い接着層近辺にクラツクが発生し、封止効果が減
ずるため、捕集効率が低下するという欠点があつ
た。 Therefore, the filter shown in Fig. 2 (1987-37454) has been proposed as a gas purification filter that solves the above drawbacks and can obtain stable and high collection efficiency even for relatively high-temperature gases. . This filter has a fibrous packing 5 arranged between the outer frame 3 and the end perpendicular to the longitudinal direction of the filter element 1,
between the fibrous packing 5 and the filter element 1 and the separator 2, and between the fibrous packing 5
and the outer frame 3 are double airtightly bonded with a heat-resistant adhesive 6, and the cushioning effect of the fibrous packing 5 and the filter element 1 and the fibrous packing 5 are bonded tightly.
Also, due to the sealing effect of the heat-resistant adhesive 6 between the fibrous packing 5 and the outer frame 3, even when relatively high-temperature gas is processed, there is little deterioration due to repeated heat and impact due to handling. It was hot. However, when processing gases such as combustion exhaust gas that are relatively high temperature and contain corrosive substances such as hydrogen chloride and sulfur oxides, this filter is also susceptible to deterioration of the heat-resistant adhesive 6 due to corrosive gases. As a result, cracks occur near the adhesive layer, reducing the sealing effect and resulting in a reduction in collection efficiency.
この考案は上記欠点を解消するもので、比較的
温度が高くかつ腐食性物質を含有する気体に対し
て長期間安定した高捕集効果が得られる気体浄化
用フイルタを提供しようとするものである。 This invention aims to eliminate the above-mentioned drawbacks and provides a gas purification filter that can provide a stable and high trapping effect over a long period of time for gases that are relatively high in temperature and contain corrosive substances. .
以下この考案の一実施例を示す第３図および第
４図によりこの考案を詳細に説明すると、ろ紙あ
るいは天然繊維、合成繊維、無機繊維等のシート
状のろ材をひだ状に折曲したフイルタ素子１のひ
だの間に、アルミニウム、ステンレスの金属箔を
波形状に折曲したセパレータ２を介在させ、フイ
ルタ素子１の長手方向と直交する方向のフイルタ
素子１の側端部１ａおよびセパレータ２の側端部
２ａとこれらの側端部に対向する外枠３の側壁３
ａの間に、繊維状パツキング５を介在させ、この
繊維状パツキング５を耐熱性接着剤６により側壁
３ａに接着固定するとともに、フイルタ素子１お
よびセパレータ２も耐熱性接着剤６により繊維状
パツキング５に接着固定してある。また側壁３ａ
の気体流入口側および気体流出口側の端部に、気
体通路内に突出する縁板部３ｂを設け、この縁板
部３ｂとフイルタ素子１の端部１ｂおよびセパレ
ータ２の端部２ｂとの間の耐熱性接着剤６の層上
に、耐熱耐食性接着剤７を縁板部３ｂの先端縁を
越えない厚さで塗布し、この耐熱耐食性接着剤７
の塗布層よりも縁板部３ｂを気体通路内に突出さ
せてある。なお上記耐熱性接着剤６としてはシリ
コン樹脂系接着剤が、また耐熱耐食性接着剤７と
してはたとえばアルミナ質などのセラミツクセメ
ントがそれぞれ好ましいが、他の材料を用いるこ
ともできる。なお外枠３の側壁３ａに直角な他方
の側壁（図示しない）とフイルタ素子１の長手方
向端部とは、耐熱性接着剤で接着固定する公知の
封止構造とすればよい。 This invention will be explained in detail below with reference to FIGS. 3 and 4 showing an embodiment of this invention. The filter element is made by folding sheet-like filter media such as filter paper, natural fibers, synthetic fibers, or inorganic fibers into pleats. A separator 2 made of aluminum or stainless metal foil bent into a wave shape is interposed between the folds of the filter element 1, and the side end 1a of the filter element 1 and the side of the separator 2 in a direction orthogonal to the longitudinal direction of the filter element 1 are interposed between the folds of the filter element 1. Ends 2a and side walls 3 of the outer frame 3 facing these side ends
A fibrous packing 5 is interposed between a and the fibrous packing 5 is adhesively fixed to the side wall 3a with a heat-resistant adhesive 6, and the filter element 1 and the separator 2 are also attached to the fibrous packing 5 with a heat-resistant adhesive 6. It is fixed with adhesive. Also, the side wall 3a
An edge plate portion 3b protruding into the gas passage is provided at the ends of the gas inlet side and gas outlet side, and the edge plate portion 3b and the end portion 1b of the filter element 1 and the end portion 2b of the separator 2 are connected. A heat-resistant and corrosion-resistant adhesive 7 is applied on the layer of heat-resistant and corrosion-resistant adhesive 6 between the layers to a thickness that does not exceed the tip edge of the edge plate portion 3b.
The edge plate portion 3b is made to protrude further into the gas passage than the coating layer. The heat-resistant adhesive 6 is preferably a silicone resin adhesive, and the heat-resistant and corrosion-resistant adhesive 7 is preferably ceramic cement such as alumina, but other materials may also be used. Note that the other side wall (not shown) perpendicular to the side wall 3a of the outer frame 3 and the longitudinal end of the filter element 1 may have a known sealing structure in which they are adhesively fixed with a heat-resistant adhesive.
上記構成を有する気体浄化用フイルタ８を、腐
食性物質を含有する気体のフイルタとして用いて
も、最も熱衝撃がかかりやすくまた腐食性物質に
より劣化しやすい気体流入口側および気体流出口
側の外枠３とフイルタ素子１およびセパレータ２
との接着部付近が、縁板部３ｂと耐熱耐食性接着
剤７により被覆されているので、該部の劣化が防
止でき、さらに縁板部３ｂは邪魔板として作用し
て、流通する気体中の粒子状の腐食性物質が直接
耐熱耐食性接着剤７層に衝突するのを抑制するの
で、耐熱耐食性接着剤７の劣化も防止され、フイ
ルタの寿命が大巾に延び長期間安定して高い捕集
効率を維持できるものである。 Even if the gas purifying filter 8 having the above configuration is used as a filter for gas containing corrosive substances, the outer parts of the gas inlet side and the gas outlet side, which are most susceptible to thermal shock and easily deteriorated by corrosive substances, are Frame 3, filter element 1 and separator 2
Since the vicinity of the bonded area with the edge plate 3b is covered with the heat-resistant and corrosion-resistant adhesive 7, deterioration of this area can be prevented, and the edge plate 3b acts as a baffle plate to prevent the flow of gas in the flowing gas. Since particulate corrosive substances are prevented from directly colliding with the heat-resistant and corrosion-resistant adhesive 7 layer, deterioration of the heat-resistant and corrosion-resistant adhesive 7 is also prevented, greatly extending the life of the filter and achieving stable high collection over a long period of time. It is possible to maintain efficiency.
またこの実施例においては、気体流出口側も流
入口側と同様な構造としたので、気体流出口側に
おける前記接着部の劣化も防止できるという長所
を有するものであるが、処理気体中の腐食性物質
が比較的少ない場合等には、この気体流出口側に
おける縁板部３ｂの付設および／または耐熱耐食
性接着剤７の塗布は省略することもできる。 Furthermore, in this embodiment, since the gas outlet side has the same structure as the inlet side, it has the advantage of preventing deterioration of the bonded portion on the gas outlet side. In cases where there are relatively few chemical substances, the provision of the edge plate 3b and/or the application of the heat-resistant and corrosion-resistant adhesive 7 on the gas outlet side may be omitted.
さらに上記実施例では、耐熱性接着剤６の層内
に繊維状パツキング５を介在させたので、この繊
維状パツキング５によるクツシヨン効果によりフ
イルタ素子１と壁面３ａとの封止性が特に良好で
あり、一層安定した高捕集効率が得られるが、腐
食性物質を含まない気体または温度が低い腐食性
物質を含む気体などの浄化用フイルタの場合等
は、繊維状パツキング５を省略してもよい。 Furthermore, in the above embodiment, since the fibrous packing 5 is interposed within the layer of the heat-resistant adhesive 6, the cushioning effect of the fibrous packing 5 provides particularly good sealing between the filter element 1 and the wall surface 3a. Although a more stable and high collection efficiency can be obtained, the fibrous packing 5 may be omitted in the case of a purifying filter for gases that do not contain corrosive substances or gases that contain corrosive substances at low temperatures. .
以上説明したようにこの考案によれば、フイル
タ素子およびセパレータの各側端部と外枠の側壁
との間を封止する耐熱性接着剤の接着部付近を、
側壁に突設した縁板部と耐熱耐食性接着剤により
被覆保護するようにしたので、比較的温度の高い
気体あるいは処理気体中に塩化水素や硫黄酸化物
等の腐食性物質が含まれるような気体の場合でも
接着部の劣化が少なく、フイルタの寿命が大巾に
延びて長期間安定した高捕集効率が維持できる。
従つて乾操器用エアフイルタ、一般燃焼排ガス用
フイルタ等のほか、特に放射性排ガス用フイル
タ、放射性廃棄物焼却炉の高温排ガス用フイルタ
等として極めて有用なものである。 As explained above, according to this invention, the vicinity of the adhesive part of the heat-resistant adhesive that seals between each side end of the filter element and the separator and the side wall of the outer frame,
Since the edge plate protruding from the side wall and the heat-resistant and corrosion-resistant adhesive are used to protect the coating, it is possible to protect against relatively high-temperature gases or gases that contain corrosive substances such as hydrogen chloride or sulfur oxides. Even in this case, there is little deterioration of the adhesive part, the life of the filter is greatly extended, and a stable high collection efficiency can be maintained for a long period of time.
Therefore, it is extremely useful not only as an air filter for dry equipment, a filter for general combustion exhaust gas, etc., but also as a filter for radioactive exhaust gas, a filter for high-temperature exhaust gas of radioactive waste incinerators, etc.
第１図および第２図は従来の気体浄化用フイル
タのフイルタ素子の長手方向に直角な断面の模式
図、第３図はこの考案の一実施例を示す第１図相
当図、第４図は同じく要部切断斜視図である。
１……フイルタ素子、１ａ……側端部、１ｂ…
…フイルタ素子の端部、２……セパレータ、２ａ
……側端部、２ｂ……セパレータの端部、３……
外枠、３ａ……側壁、３ｂ……縁板部、５……繊
維状パツキン、６……耐熱性接着剤、７……耐熱
耐食性接着剤、８……気体浄化用フイルタ。
Figures 1 and 2 are schematic cross-sectional views perpendicular to the longitudinal direction of a filter element of a conventional gas purification filter, Figure 3 is a view equivalent to Figure 1 showing an embodiment of this invention, and Figure 4 is Similarly, it is a cutaway perspective view of the main part. 1... Filter element, 1a... Side end portion, 1b...
... End of filter element, 2 ... Separator, 2a
...Side end, 2b... End of separator, 3...
Outer frame, 3a... side wall, 3b... edge plate portion, 5... fibrous packing, 6... heat resistant adhesive, 7... heat resistant and corrosion resistant adhesive, 8... gas purification filter.
Claims (1)
状に折曲したセパレータ２を介在させた気体浄
化用フイルタにおいて、フイルタ素子１の側端
部１ａおよびセパレータ２の側端部２ａとこれ
らの側端部に対向する外枠３の側壁３ａの間を
耐熱性接着剤６で封止するとともに、上記側壁
３ａの少なくとも気体流入口側の端部に気体通
路内に突出する縁板部３ｂを設け、この縁板部
３ｂとフイルタ素子１およびセパレータ２の端
部１ｂ，２ｂとの間の上記耐熱性接着剤６の上
に耐熱耐食性接着剤７を塗布し、この耐熱耐食
性接着剤７の塗布層よりも前記縁板部３ｂを気
体通路内に突出させてあることを特徴とする気
体浄化用フイルタ。 ２ 耐熱性接着剤６の層内に繊維状パツキング５
を介在させてある実用新案登録請求の範囲第１
項記載の気体浄化用フイルタ。 ３ 耐熱耐食性接着剤７がセラミツクセメントで
ある実用新案登録請求の範囲第１項または第２
項記載の気体浄化用フイルタ。[Claims for Utility Model Registration] 1. In a gas purifying filter in which a separator 2 bent in a wave shape is interposed between a filter element 1 bent in a pleat shape, the side end 1a of the filter element 1 and the separator 2 A heat-resistant adhesive 6 is used to seal between the side edges 2a of the side edges 2a and the side walls 3a of the outer frame 3 facing these side edges, and at least the gas inlet side end of the side walls 3a is sealed in the gas passage. A protruding edge plate portion 3b is provided, and a heat-resistant and corrosion-resistant adhesive 7 is applied on the heat-resistant adhesive 6 between the edge plate portion 3b and the ends 1b and 2b of the filter element 1 and the separator 2, A gas purifying filter characterized in that the edge plate portion 3b projects further into the gas passage than the coated layer of the heat-resistant and corrosion-resistant adhesive 7. 2 Fibrous packing 5 within the layer of heat-resistant adhesive 6
Claim 1 for utility model registration with intervening
Gas purification filter as described in section. 3 Utility model registration claim 1 or 2 in which the heat-resistant and corrosion-resistant adhesive 7 is ceramic cement
Gas purification filter as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20240383U JPS60108333U (en) | 1983-12-23 | 1983-12-23 | Gas purification filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20240383U JPS60108333U (en) | 1983-12-23 | 1983-12-23 | Gas purification filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60108333U JPS60108333U (en) | 1985-07-23 |
| JPH0248018Y2 true JPH0248018Y2 (en) | 1990-12-17 |
Family
ID=30764848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20240383U Granted JPS60108333U (en) | 1983-12-23 | 1983-12-23 | Gas purification filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60108333U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0215547Y2 (en) * | 1985-12-11 | 1990-04-26 | ||
| JP5651425B2 (en) * | 2010-10-22 | 2015-01-14 | 日本無機株式会社 | Heat resistant filter and method for producing heat resistant filter |
| JP6148275B2 (en) * | 2015-03-27 | 2017-06-14 | 進和テック株式会社 | High temperature air filter and manufacturing method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837454U (en) * | 1981-09-08 | 1983-03-11 | 日立化成工業株式会社 | solar water heater |
-
1983
- 1983-12-23 JP JP20240383U patent/JPS60108333U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837454U (en) * | 1981-09-08 | 1983-03-11 | 日立化成工業株式会社 | solar water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60108333U (en) | 1985-07-23 |
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