JP7392008B2 - 多孔質膜を含むフィルタバッグ - Google Patents
多孔質膜を含むフィルタバッグ Download PDFInfo
- Publication number
- JP7392008B2 JP7392008B2 JP2022011852A JP2022011852A JP7392008B2 JP 7392008 B2 JP7392008 B2 JP 7392008B2 JP 2022011852 A JP2022011852 A JP 2022011852A JP 2022011852 A JP2022011852 A JP 2022011852A JP 7392008 B2 JP7392008 B2 JP 7392008B2
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- JP
- Japan
- Prior art keywords
- filter
- porous membrane
- filter assembly
- membrane
- assembly according
- 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.)
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Classifications
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Description
本発明は、一般に、多孔質膜を含むフィルタバッグに関する。特に、多孔質膜は、ろ材に取り付けられるか、又は、ろ材に取り付けられた第二の層とラミネート化されることができる。多孔質膜はクリーニングサイクルで発生する応力に耐える耐久性がある。
ガス流からの粒子の除去は様々な産業分野において長い間行われてきた。ガス流から粒子などをろ過するための従来の手段としては、限定するわけではないが、フィルタバッグ、フィルタチューブ、フィルタカートリッジ及びフィルタパネルが挙げられる。これらのフィルタ要素は、典型的には、そのような粒子をろ過するために、しばしばフィルタバッグハウスと呼ばれるろ過システムに向けられる。そのようなろ過システムは、システム操作の要件に応じて、クリーニング可能であることも又はクリーニング不可能のいずれであることもできる。
1.下記理由により、ユニットサイズがより小さい(時にシェーカ及びリバースエアろ過のサイズの1/2又は1/4)
(A)体積空気量/布面積比がより高い(媒体を通過する操作速度がより速い)、及び
(B)オンラインクリーニングによりユニットを所望の流量で設計できるため、オフラインクリーニングを可能にするための追加のろ材領域は必要ない。
2.最小数の可動部品。
3.交換するバッグの数が比較的少ない。
本発明の1つの実施形態によれば、ガス流から粒子をろ過するためのフィルタアセンブリであって、ろ材と、前記ガス流に曝される上流表面及び前記ろ材に隣接する下流表面を有する多孔質膜とを含むフィルタバッグ、を含んでなり、前記多孔質膜は0.06MPa以上、例えば0.09MPa以上のバブルポイントを有し、前記多孔質膜は100N/m以上、例えば175N/m以上である横断方向における強度を有し、さらに前記フィルタアセンブリはクリーニング可能である、そのようなフィルタアセンブリが提供される。1つの実施形態において、多孔質膜は、収集された粒子を多孔質膜の上流表面から解放するために、クリーニングプロセス、例えば、振とう又は脈動の応力によって引き起こされる構造的破損に耐えることができる。多孔質膜は、上流側の表面に粒子を集める構造を有する。さらに、多孔質膜は、ガス流から0.07ミクロンより大きい直径を有する粒子のうちの97%超の粒子を収集することができる。
本発明は、添付の非限定的な図を考慮してよりよく理解されるであろう。
当業者は、本開示の様々な態様が、意図された機能を発揮するように構成された任意の数の方法及び装置によって実現されうることを容易に理解するであろう。本明細書で参照される添付の図は、必ずしも縮尺通りに描かれているわけではなく、本開示の様々な態様を示すために誇張されている場合があり、その点で、描かれている図面は限定として解釈されるべきでないことにも留意されたい。
特定の方法及び装置が以下に記載されているが、当業者によって適切であると決定された任意の方法又は装置が利用されうることが理解されるべきである。
2.2gsmの質量対面積比、2.6cfm/ft2/分の透過性及び0.09MPaのバブルポイントを有する延伸ポリテトラフルオロエチレン(ePTFE)膜を、接着剤を使用せずにPTFEフェルトに接着した。表1は、パルスジェットクリーニング技術を使用して耐久性及びクリーニング性を報告している。表1に示すように、例1は、ある程度の損傷を伴う許容可能な耐久性及び優れたクリーニング性を示している。
(態様1)
ガス流から粒子をろ過するためのフィルタアセンブリであって、ろ材と、前記ガス流に曝される上流表面及び前記ろ材に隣接する下流表面を有する多孔質膜とを含むフィルタバッグ、を含んでなり、前記多孔質膜は0.06MPa以上のバブルポイントを有し、前記多孔質膜は100N/m以上である横断方向における強度を有し、かつ、前記フィルタアセンブリはクリーニング可能である、フィルタアセンブリ。
(態様2)
ガス流から粒子をろ過するためのフィルタアセンブリであって、ろ材と、前記ガス流に曝される上流表面を有する多孔質膜と、第二の層とを含むフィルタバッグを含んでなり、前記第二の層は前記ろ材と前記多孔質膜の間に配置されており、前記多孔質膜は0.06MPa以上のバブルポイントを有し、かつ、前記フィルタアセンブリはクリーニング可能である、フィルタアセンブリ。
(態様3)
前記ろ材は、織フェルト、不織フェルト又はガラス繊維材料を含む、態様1又は2のいずれか1項記載のフィルタアセンブリ。
(態様4)
前記多孔質膜は、前記上流表面上で前記粒子を収集する構造を有する。態様1~3のいずれか1項記載のフィルタアセンブリ。
(態様5)
前記多孔質膜は、収集された粒子を前記多孔質膜の前記上流表面から解放するためのクリーニングプロセスの応力によって引き起こされる構造的破損に耐えることができる、態様4記載のフィルタアセンブリ。
(態様6)
前記多孔質膜はフルオロポリマー膜又はポリエステル膜を含む、態様1~5のいずれか1項記載のフィルタアセンブリ。
(態様7)
前記多孔質膜は175N/m以上の横断方向における強度を有する、態様1~6のいずれか1項記載のフィルタアセンブリ。
(態様8)
前記多孔質膜は4.5gsm以下の面積あたりの質量比を有する、態様1~7のいずれか1項記載のフィルタアセンブリ。
(態様9)
前記多孔質膜は1.36kg以下のボールバースト強度を有する、態様1~8のいずれか1項記載のフィルタアセンブリ。
(態様10)
前記多孔質膜は0.5インチ水ゲージで1cfm/ft 2 の透過性を有する、態様1~9のいずれか1項記載のフィルタアセンブリ。
(態様11)
前記多孔質膜は5~50ミクロンの厚さを有する、態様1~10のいずれか1項記載のフィルタアセンブリ。
(態様12)
前記多孔質膜は0.09MPa以上のバブルポイントを有する、態様1~11のいずれか1項記載のフィルタアセンブリ。
(態様13)
前記第二の層は0.5インチ水ゲージで10cfm/ft 2 の透過性を有する、態様2~12のいずれか1項記載のフィルタアセンブリ。
(態様14)
前記第二の層及び前記多孔質膜は一緒にラミネート化されてラミネートを形成する、態様2~13のいずれか1項記載のフィルタアセンブリ。
(態様15)
前記第二の層は織布テキスタイル、不織布テキスタイル又は膜を含む、態様2~14のいずれか1項記載のフィルタアセンブリ。
(態様16)
前記第二の層は前記ろ材にラミネート化されている、態様2~15のいずれか1項記載のフィルタアセンブリ。
(態様17)
前記多孔質膜は前記ガス流から0.07ミクロンより大きい直径を有する粒子のうちの97%を超える粒子を収集する、態様1~16のいずれか1項記載のフィルタアセンブリ。
(態様18)
前記フィルタアセンブリはパルスジェット、リバースエア又はシェーカクリーニング技術によってクリーニングされる、態様1~17のいずれか1項記載のフィルタアセンブリ。
(態様19)
入口及び出口を有するハウジング、
前記入口と前記出口との間の前記ハウジング内に配置されたチューブシート、及び
前記チューブシートに取り付けられた態様1~17のいずれか1項記載の1つ以上のフィルタアセンブリ、
を含んでなる、バッグハウスフィルタシステム。
Claims (17)
- ガス流から粒子をろ過するためのフィルタアセンブリであって、ろ材と、前記ガス流に曝される上流表面を有する多孔質膜と、第二の層とを含むフィルタバッグを含んでなり、前記第二の層は前記ろ材と前記多孔質膜の間に配置されており、前記多孔質膜は0.09MPa以上のバブルポイント(キャピラリーフローポロメーターCFP-1500を用い、シルウィックオイルでテスト面積2.84cm2の膜の細孔を満たして測定)を有し、前記多孔質膜は、粒子を保持しながらISO試験法(11057:2011)で測定した際に初期サイクルと最終サイクルとの間での差圧上昇が0.1MPa未満であり、かつ、前記フィルタアセンブリはクリーニング可能である、フィルタアセンブリ。
- 前記ろ材は、織フェルト、不織フェルト又はガラス繊維材料を含む、請求項1記載のフィルタアセンブリ。
- 前記多孔質膜は、前記上流表面上で前記粒子を収集する構造を有する、請求項1又は2記載のフィルタアセンブリ。
- 前記多孔質膜は、収集された粒子を前記多孔質膜の前記上流表面から解放するためのクリーニングプロセスの応力によって引き起こされる構造的破損に耐えることができる、請求項3記載のフィルタアセンブリ。
- 前記多孔質膜はフルオロポリマー膜又はポリエステル膜を含む、請求項1~4のいずれか1項記載のフィルタアセンブリ。
- 前記多孔質膜は175N/m以上の横断方向における強度を有する、請求項1~5のいずれか1項記載のフィルタアセンブリ。
- 前記多孔質膜は4.5gsm以下の面積あたりの質量比を有する、請求項1~6のいずれか1項記載のフィルタアセンブリ。
- 前記多孔質膜は1.36kg以下のボールバースト強度を有する、請求項1~7のいずれか1項記載のフィルタアセンブリ。
- 前記多孔質膜は1.27cm(0.5インチ)水ゲージで少なくとも304.8L/m・m2(1cfm/ft2)の透過性を有する、請求項1~8のいずれか1項記載のフィルタアセンブリ。
- 前記多孔質膜は5~50μmの厚さを有する、請求項1~9のいずれか1項記載のフィルタアセンブリ。
- 前記第二の層は1.27cm(0.5インチ)水ゲージで3048L/m・m2(10cfm/ft2)の透過性を有する、請求項1~10のいずれか1項記載のフィルタアセンブリ。
- 前記第二の層及び前記多孔質膜は一緒にラミネート化されてラミネートを形成する、請求項1~11のいずれか1項記載のフィルタアセンブリ。
- 前記第二の層は織布テキスタイル、不織布テキスタイル又は膜を含む、請求項1~12のいずれか1項記載のフィルタアセンブリ。
- 前記第二の層は前記ろ材にラミネート化されている、請求項1~13のいずれか1項記載のフィルタアセンブリ。
- 前記多孔質膜は前記ガス流から0.07μmより大きい直径を有する粒子のうちの97%を超える粒子を収集する、請求項1~14のいずれか1項記載のフィルタアセンブリ。
- 前記フィルタアセンブリはパルスジェット、リバースエア又はシェーカクリーニング技術によってクリーニングされる、請求項1~15のいずれか1項記載のフィルタアセンブリ。
- 入口及び出口を有するハウジング、
前記入口と前記出口との間の前記ハウジング内に配置されたチューブシート、及び
前記チューブシートに取り付けられた請求項1~15のいずれか1項記載の1つ以上のフィルタアセンブリ、
を含んでなる、バッグハウスフィルタシステム。
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PCT/US2017/061301 WO2019094042A1 (en) | 2017-11-13 | 2017-11-13 | Filter bags comprising a porous membrane |
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EP (1) | EP3710132B1 (ja) |
JP (2) | JP2021502246A (ja) |
KR (2) | KR20200077599A (ja) |
CN (1) | CN111629807B (ja) |
AU (1) | AU2017439374B2 (ja) |
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KR200493611Y1 (ko) * | 2019-06-10 | 2021-05-20 | 주식회사 가지카인텍 | 유체 여과 장치 |
CN213049884U (zh) * | 2020-06-17 | 2021-04-27 | 广州市华滤环保设备有限公司 | 一种除尘滤筒 |
CN112430832A (zh) * | 2020-12-04 | 2021-03-02 | 金川集团股份有限公司 | 一种电解隔膜袋 |
CN113277576B (zh) * | 2021-05-14 | 2022-08-26 | 广州市艾瑞空气净化设备有限公司 | 一种基于pp材料的粒子微振动型过滤层 |
US11772025B1 (en) | 2022-08-02 | 2023-10-03 | W. L. Gore & Associates, Inc. | Industrial filter assembly enhancement |
CN115317980B (zh) * | 2022-08-18 | 2023-10-27 | 宁波弗镁瑞环保科技有限公司 | 一种袋式仿生过滤浓密装置及其方法 |
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2017
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- 2017-11-13 KR KR1020207016859A patent/KR20200077599A/ko not_active IP Right Cessation
- 2017-11-13 EP EP17808271.5A patent/EP3710132B1/en active Active
- 2017-11-13 WO PCT/US2017/061301 patent/WO2019094042A1/en unknown
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2020
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- 2020-05-12 US US15/930,143 patent/US20200269180A1/en not_active Abandoned
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2021
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JP2002520134A (ja) | 1998-07-10 | 2002-07-09 | ドナルドソン カンパニー,インコーポレイティド | 積層生成物、パルス・ジェット・フィルタ・バッグ、および製造方法 |
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US20200269180A1 (en) | 2020-08-27 |
US20200269181A1 (en) | 2020-08-27 |
EP3710132B1 (en) | 2024-07-24 |
US20210187429A1 (en) | 2021-06-24 |
CN111629807B (zh) | 2022-08-12 |
AU2017439374B2 (en) | 2022-05-19 |
WO2019094042A1 (en) | 2019-05-16 |
KR20200077599A (ko) | 2020-06-30 |
JP2022060251A (ja) | 2022-04-14 |
EP3710132A1 (en) | 2020-09-23 |
US10994237B2 (en) | 2021-05-04 |
SG11202004363WA (en) | 2020-06-29 |
AU2017439374A1 (en) | 2020-06-11 |
CN111629807A (zh) | 2020-09-04 |
KR20240054377A (ko) | 2024-04-25 |
US11602711B2 (en) | 2023-03-14 |
JP2021502246A (ja) | 2021-01-28 |
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