JPS6061018A - Filtering apparatus - Google Patents
Filtering apparatusInfo
- Publication number
- JPS6061018A JPS6061018A JP16995983A JP16995983A JPS6061018A JP S6061018 A JPS6061018 A JP S6061018A JP 16995983 A JP16995983 A JP 16995983A JP 16995983 A JP16995983 A JP 16995983A JP S6061018 A JPS6061018 A JP S6061018A
- Authority
- JP
- Japan
- Prior art keywords
- fluororesin
- tubular
- filtration device
- ptfe
- outside
- 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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- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
Abstract
Description
【発明の詳細な説明】
(技術分野)
本発明は全部品が弗素樹脂から成る、耐薬品性及び耐熱
性に優れた精密濾過装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a precision filtration device that has excellent chemical resistance and heat resistance and has all parts made of fluororesin.
(発明の背景)
液体や気体中に含まれる微粒子を精密濾過により分離す
るための濾過装置は多数知られているが、耐薬品性、耐
熱性に優れた精密濾過装置についてはほとんど知られて
いない。従来、弗素樹脂製の一過膜を用いた場合であっ
ても、濾過装置の他部分に耐薬品性、耐熱性の点で劣る
材料を使用したものが多く、それらの材料の性質で全体
が規制される結果となっている。更に濾過装置の単位体
積当りの一過膜の面積が小さく、濾過流量を多くとるこ
とが困難である場合が多い。(Background of the invention) Many filtration devices are known for separating fine particles contained in liquids and gases by precision filtration, but very little is known about precision filtration devices that have excellent chemical resistance and heat resistance. . Conventionally, even when using a transient membrane made of fluororesin, the other parts of the filtration device often use materials with poor chemical resistance and heat resistance, and the properties of these materials affect the overall performance. As a result, it is regulated. Furthermore, the area of the filtration membrane per unit volume of the filtration device is small, and it is often difficult to increase the filtration flow rate.
本発明はこれらの欠点を改善した、耐薬品性、耐熱性に
優れた全弗素樹脂製精密濾過装置を提出するものである
。The present invention proposes a precision filtration device made of all fluororesin and having excellent chemical resistance and heat resistance, which has improved these drawbacks.
(発明の構成) 本発明め構成を実施例を入れて詳細に説明する。(Structure of the invention) The structure of the present invention will be explained in detail by including examples.
本発明に於ける濾過装置は管状濾過体の外部から内部へ
流体を濾過する濾過装置であって、管状濾過体は1本又
は複数本が流体の入口及び出口を有する弗素樹脂容器内
に配置される。管状濾過体は孔径の異なる2種類のポリ
テトラフルオロエチレン(以下PTFEと略記する)多
孔質膜を重ね合わせて弗素樹脂管状支持体の外部を覆っ
た構造を有するものである。The filtration device in the present invention is a filtration device that filters fluid from the outside to the inside of a tubular filter body, and one or more tubular filter bodies are arranged in a fluororesin container having an inlet and an outlet for fluid. Ru. The tubular filter has a structure in which two types of polytetrafluoroethylene (hereinafter abbreviated as PTFE) porous membranes having different pore diameters are superimposed to cover the outside of a fluororesin tubular support.
PTFE多孔質膜は通常0.01〜100μm のもの
から用途に応じて選択使用される。特に延伸焼結法によ
り製造されたPTFE多孔質シート又はPTFE多孔質
チューブが最適である。延伸焼結法によりPTFE多孔
質膜を製造するには基本的には特公昭42−13560
に記載の方法が採用される。この方法により製造された
PTFE多孔質膜は、繊維と該繊維により互に連結され
た結節とから成るミクロ構造を有することが特徴であり
、機械的強度が大きく、微細で均一な孔径を有し、大き
な気孔率のものも製造可能であるため単位面積当りの濾
過流量を大きくすることができ、−過膜としては最適で
ある。The porous PTFE membrane is usually selected from those with a thickness of 0.01 to 100 μm depending on the purpose. In particular, a porous PTFE sheet or a porous PTFE tube manufactured by a stretch sintering method is most suitable. To manufacture a PTFE porous membrane by the stretch sintering method, basically
The method described in is adopted. The PTFE porous membrane produced by this method is characterized by having a microstructure consisting of fibers and nodules interconnected by the fibers, and has high mechanical strength and fine and uniform pore diameters. Since it is possible to manufacture a membrane with a large porosity, the filtration flow rate per unit area can be increased, making it ideal as a filtration membrane.
PTFE多孔質シートは第1図のように接着加工して管
状とすることができる。PTFE多孔質膜の接着はPT
FE多孔質膜を重ね合わせて加圧しながらPTF Eの
融点(約327℃)以上に加熱することにより達成され
る。またPTFE多孔質膜を重ね合せた間に他の弗素樹
脂のフィルム又は粉末を挿入し、加圧しながら挿入され
た弗素樹脂の融点以上に加熱してPTFE多孔質膜の孔
内に該弗素樹脂を入り込ませることによっても達成され
る。この目的に使用される弗素樹脂の例としては、テト
ラフルオロエチレン〜ヘキサフルオロプロピレン共重合
体(FEP)、テトラフルオロエチレンルバーフルオロ
アルキルビニルエーテル共重合体(PFA )、テトラ
フルオロエチレン−エチレン共ffi 合体(ETFE
)、ホ!Jクロロトリフルオロエチレン(PCTFE
)、ポリ弗化ビニリデン(PVdF)、ポリ弗化ビニ
ル(PVF ) 、クロロトリフルオロエチレン−エチ
レン共重合体(ECTFE )等があげられる。The PTFE porous sheet can be adhesively processed into a tubular shape as shown in FIG. Adhesion of PTFE porous membrane is PT
This is achieved by stacking FE porous membranes together and heating them to a temperature higher than the melting point of PTFE (approximately 327°C) while applying pressure. Alternatively, a film or powder of another fluororesin is inserted between the stacked PTFE porous membranes, and the fluororesin is heated to a temperature higher than the melting point of the inserted fluororesin under pressure to inject the fluororesin into the pores of the PTFE porous membrane. This can also be achieved by infiltration. Examples of fluororesins used for this purpose include tetrafluoroethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene rubber fluoroalkyl vinyl ether copolymer (PFA), and tetrafluoroethylene-ethylene copolymer (FFI). ETFE
), ho! J chlorotrifluoroethylene (PCTFE)
), polyvinylidene fluoride (PVdF), polyvinyl fluoride (PVF), chlorotrifluoroethylene-ethylene copolymer (ECTFE), and the like.
特に耐熱耐薬品性が要求される場合にはFEP又はPF
Aを用いるのが適当である。Especially when heat resistance and chemical resistance are required, FEP or PF is used.
It is appropriate to use A.
本発明では孔径の異なる2種類のPTFE多孔質膜を重
ね合わせて用いるのが特徴である。この目的は、孔径の
大きな方のPTFE多孔質膜にプレフィルタ−としての
役割を持たせ、膜の目づまりを防止すると共に、逆圧に
対しての強度を付与することである。特にPTFII、
多孔質シートを管状に接着加工したものの外側に、それ
より孔径の大きなPTFE多孔質チューブを重ね合わせ
るのが適当であった。これは、PTFE多孔質シートは
、最初からチューブ状に成形したPTFE多孔質チュー
ブより孔径が均一で、微細孔径とした場合でも気孔率が
大きくとれ、膜厚も薄くできるため、単位面積当りの濾
過流量の大きいものが得られるが、外力に対してはPT
FE多孔質チューゾの方がPTFE多孔質シートより変
形が少全いという特徴を有するためである。従って、P
TFE多孔質シートの孔径力0.0l−100ttrn
(Dものに対しては、PTFE多孔質チューブの孔径
を0.1〜500μmのものから選択し組合せればよい
。The present invention is characterized in that two types of PTFE porous membranes having different pore sizes are used in a superimposed manner. The purpose of this is to allow the PTFE porous membrane with the larger pore diameter to play a role as a pre-filter, to prevent the membrane from clogging, and to provide strength against back pressure. Especially PTFII,
It was appropriate to superpose a porous PTFE tube with a larger pore diameter on the outside of a porous sheet glued into a tubular shape. This is because porous PTFE sheets have more uniform pore diameters than PTFE porous tubes that are formed into tubes from the beginning, and even when they are made with micropores, the porosity can be increased and the membrane thickness can be made thinner. Although a large flow rate can be obtained, PT
This is because the FE porous sheet is characterized by less deformation than the PTFE porous sheet. Therefore, P
TFE porous sheet pore size 0.0l-100ttrn
(For type D, the pore diameter of the PTFE porous tube may be selected from 0.1 to 500 μm and combined.
弗素樹脂管状支持体として適当なものはPTFE粒体の
焼結多孔成形管である。これはPTFE粒体を成形し、
加熱焼結することにより製造される、連通孔をもつ成形
体である。通常、0.1μm〜ldの孔径を有するもの
が使用されるが、濾過膜より大きな孔径を有するものを
選択するのが濾過抵抗を低くするに有効である。この焼
結多孔成形管は透過性が良好で変形しにくい特徴を有す
るため支持体として特に有用なものである。A suitable fluororesin tubular support is a sintered porous tube of PTFE granules. This molds PTFE granules,
It is a molded body with communicating holes manufactured by heating and sintering. Usually, those having a pore diameter of 0.1 μm to 1d are used, but it is effective to select one having a pore diameter larger than that of the filtration membrane in order to lower the filtration resistance. This sintered porous molded tube has good permeability and is resistant to deformation, making it particularly useful as a support.
弗素樹脂管状支持体の例として他の適当なものは、弗素
樹脂孔あき管の外部を弗素樹脂の網状成形品又は不織布
で覆った構造のものである。ここで弗素樹脂の網状成形
品又は不織布は濾過膜の有効面積を多くとるためのもの
であり、その孔径は濾過膜の孔径より大きくすることが
濾過抵抗を低くするために要求される。弗素樹脂網状成
形品は、網状に一体に成形されたものであってもよく、
織物又は編物であってもよい。また弗素樹脂孔あき管は
通常弗素樹脂管に流路となる直径0.5〜10ruL程
度の孔を1あけた第2図Bのような構造のものが用いら
れる。孔の形状は円形が一般的であるが他の形状であっ
ても差支えない。この弗素樹脂孔あき管の外部を覆う形
で弗素樹脂の網状成形品又は不織布が配置される(第2
図C)。これらの管状支持体の材料である弗素樹脂の例
としては、PTFE。Another suitable example of the fluororesin tubular support is one in which the outside of a fluororesin perforated tube is covered with a fluororesin mesh molding or a nonwoven fabric. Here, the fluororesin net-like molded product or nonwoven fabric is used to increase the effective area of the filtration membrane, and the pore diameter thereof is required to be larger than the pore diameter of the filtration membrane in order to lower the filtration resistance. The fluororesin reticular molded product may be integrally molded into a reticular shape,
It may be woven or knitted. The perforated fluororesin tube usually has a structure as shown in FIG. 2B, in which one hole with a diameter of about 0.5 to 10 ruL is made to serve as a flow path. The shape of the hole is generally circular, but other shapes may be used. A fluororesin mesh molded product or nonwoven fabric is placed to cover the outside of this fluororesin perforated tube (second
Figure C). An example of the fluororesin material for these tubular supports is PTFE.
FEP、 PFA、 ETFE、 PCTFE、 PV
dF、 PVF。FEP, PFA, ETFE, PCTFE, PV
dF, PVF.
ECTFE 等があげられる。特に耐熱耐薬品性が要求
される場合には、PTFE、 FEP 、 PFA等が
有効である。Examples include ECTFE. In particular, when heat resistance and chemical resistance are required, PTFE, FEP, PFA, etc. are effective.
孔径の異なる2種類のPTFE多孔質膜は重ね合わせて
弗素樹脂管状支持体の外部を覆う形で配置される。−過
は管の外側から内側に向けて行なわれる外圧型管状−週
休を形成することになる。管状−週休は一端閉塞の形状
とするのが装置に組上げるのに適当である。この場合、
PTFE多孔質膜も一端閉塞の形状としておいてもよい
(第1図B。Two types of PTFE porous membranes having different pore sizes are placed one on top of the other to cover the outside of the fluororesin tubular support. - The passage is carried out from the outside of the tube to the inside, forming an external pressure type tubular tube. A tubular shape with one end closed is suitable for assembly into the device. in this case,
The PTFE porous membrane may also have a shape with one end closed (FIG. 1B).
C)。またPTFE多孔質膜の端末を一弗素樹脂管状支
持体に接着シールしてもよい。このPTFE多孔質膜と
弗素樹脂管状支持体の組合せが本発明の管状−週休を構
成するものである。C). Alternatively, the end of the PTFE porous membrane may be adhesively sealed to a monofluororesin tubular support. The combination of this PTFE porous membrane and the fluororesin tubular support constitutes the tubular diaphragm of the present invention.
この管状濾過体は1本又は複数本が弗素樹脂容器内に配
置される。弗素樹脂の例としては管状支持体の弗素樹脂
と同様のものがあげられる。配置例を第8図に示した。One or more of these tubular filter bodies are placed in a fluororesin container. Examples of the fluororesin include those similar to those of the tubular support. An example of the arrangement is shown in FIG.
第3図に於て、弗素樹脂容器は基本的には外容器5及び
6と支持板7から構成され、Aの容器は流体の入口と出
口を容器の一方の側に設けた例であり、Bの容器は人口
と出口を容器の両側に設けた例である。8は管状濾過体
であり、その開放端は支持板7に固定シールされている
。流体の入口は9であり、出1」はlOである。その他
に空気抜き、ドレン抜き等のための口を設けてもよいこ
とは言う迄もない。支持板7の例としては第4図のよう
な孔あき円板が一般的である。管状濾過体の開放端は支
持板の孔に合わせて固定シールされる。管状−週休を支
持板に固定シールする方法の例としては、テーパーねじ
による方法や熱融着による方法あるいは両者の組合せが
適当であった。ここで熱融着には、樹脂の融点以上に熱
した治具で圧する方法、高周波誘導加熱あるいは超音波
による方法等を含むものとする。In FIG. 3, the fluororesin container basically consists of outer containers 5 and 6 and a support plate 7, and container A is an example in which the fluid inlet and outlet are provided on one side of the container. Container B is an example in which the population and outlet are provided on both sides of the container. 8 is a tubular filter body, the open end of which is fixedly sealed to the support plate 7. The fluid inlet is 9 and the outlet 1' is lO. Needless to say, other openings may be provided for venting air, draining water, etc. As an example of the support plate 7, a perforated circular plate as shown in FIG. 4 is generally used. The open end of the tubular filter body is fixedly sealed in alignment with the hole in the support plate. As an example of a method for fixing and sealing the tubular shape to the support plate, a method using a tapered screw, a method using heat fusion, or a combination of the two were suitable. Here, thermal fusion includes a method of pressing with a jig heated to a temperature higher than the melting point of the resin, a method using high-frequency induction heating, ultrasonic waves, and the like.
また両者の接続部分に弗素樹脂製の接続部品を用いても
よい。その例を第5図に示した。第5図に於てAは接続
部品の一例であり、Bは接続部品と管状支持体を組合わ
せた例である。Further, a connecting part made of fluororesin may be used for the connecting portion between the two. An example is shown in FIG. In FIG. 5, A is an example of a connecting part, and B is an example of a combination of a connecting part and a tubular support.
PTFE多孔質膜は管状支持体又は接続部品にその開放
端を熱融着するか、固定ねじ部に挿入することによって
端末シールが可能であった。管状濾過体の閉塞端は容器
の底(第3図A)、あるblは適当な支持板(第3図B
)で固定される。また外容器と支持板の固定シールは、
熱融着、ねじ、弗素樹脂O−リング等を用いる方法が利
用できる。また第6図に示した工うなはめ合わせ構造と
して両側から締め付ける方法も有効であった。両側から
締め付けるには、金属製又は樹脂製のフランジ付容器内
にこの弗素樹脂容器を入れて圧縮するのが適当であった
。この方法は容器の耐圧を増すという利点も有するもの
である。この場合も流体に触れるのは弗素樹脂容器だけ
であるので耐薬品性は何ら低下することはない。The porous PTFE membrane could be end-sealed by heat-sealing its open end to a tubular support or connecting part, or by inserting it into a fixing thread. The closed end of the tubular filter body is located at the bottom of the container (Fig. 3A), and the BL is connected to a suitable support plate (Fig. 3B).
) is fixed. In addition, the fixed seal between the outer container and the support plate is
Methods using heat fusion, screws, fluororesin O-rings, etc. can be used. Also, the method of tightening from both sides using a fitting structure shown in Fig. 6 was also effective. In order to tighten from both sides, it was appropriate to place the fluororesin container inside a flanged container made of metal or resin and compress it. This method also has the advantage of increasing the pressure resistance of the container. In this case as well, since only the fluororesin container comes into contact with the fluid, chemical resistance does not deteriorate in any way.
(発明の効果)
本発明の一過装置は、精密濾過膜として最も優れたPT
F E多孔質膜と特定形状の弗素樹脂支持体を用い、し
かも全部品が弗素樹脂から成るため、流体中の微粒子除
去性能、濾過流量、耐薬品性、耐熱性の優れた装置であ
る。また、PTFE多孔質膜として孔径の異なる2種類
の膜を重ね合わせて用いているため、膜の目づまりが少
なく、寿命が長い上、逆圧に対しての強度も有するもの
である。(Effects of the Invention) The transient device of the present invention uses PT, which is the most excellent precision filtration membrane.
Since it uses a FE porous membrane and a fluororesin support of a specific shape, and all parts are made of fluororesin, it is a device with excellent performance in removing particulates from fluids, filtration flow rate, chemical resistance, and heat resistance. In addition, since two types of membranes with different pore sizes are used as a PTFE porous membrane, they are less likely to clog, have a long life, and have strength against back pressure.
従って、はとんどあらゆる流体の精密濾過に利用でき、
従来−過が困難であった、腐食性あるいは高温の流体を
も効率良く処理することを可能にするものである。Therefore, it can be used for precision filtration of almost any fluid.
This makes it possible to efficiently treat corrosive or high-temperature fluids, which have been difficult to treat in the past.
第1図AはPTFE多孔質シートを接着加工して管状に
した例を示す図であり、Bはそれを一端閉塞の形にした
例を示す図である。また、CはPTFE多孔質チューブ
を一端閉塞の形に接着加工した例を示す図である。第2
図AはPTFE粒体の焼結多孔成形管の例を示す図であ
り、Bは弗素樹脂孔あき管の例を示す図である。Cは弗
素樹脂孔あき管の外側に弗素樹脂網が配置された構造の
管状支持体の例を示す図である。第3図A、Bは濾過装
置の例を示す断面図である。第4図は支持板の例を示す
図である。第5図Aは接続部品、Bは接続部品と管状支
持体の組合わせ、Cは更にPTFE多孔質膜を融着した
例を示す図である。第6図はシール方法の例を示す図で
ある。
1・・・PTF E多孔質膜接着部分、2・・・開放端
、8・・・弗素樹脂孔あき管、4・・・弗素樹脂網、5
.6・・・外容器、7・・・支持板、8・・・管状濾過
体、9・・・入口、10・・・出口、11・・・シール
部分、12・・・融着部分、13・・・PTFE多孔質
膜。
71図
芳2図
A B
″に4図
W5図
AB C
ピ
左6図FIG. 1A is a diagram showing an example in which a PTFE porous sheet is adhesively processed into a tubular shape, and FIG. 1B is a diagram showing an example in which one end is closed. Further, C is a diagram showing an example in which a PTFE porous tube is bonded and processed to have one end closed. Second
Figure A is a diagram showing an example of a sintered porous tube made of PTFE particles, and Figure B is a diagram showing an example of a fluororesin perforated tube. C is a diagram showing an example of a tubular support having a structure in which a fluororesin network is arranged on the outside of a perforated fluororesin tube. FIGS. 3A and 3B are cross-sectional views showing an example of a filter device. FIG. 4 is a diagram showing an example of the support plate. FIG. 5A shows a connection part, B shows a combination of a connection part and a tubular support, and FIG. 5C shows an example in which a porous PTFE membrane is further fused. FIG. 6 is a diagram showing an example of a sealing method. DESCRIPTION OF SYMBOLS 1... PTF E porous membrane adhesive part, 2... Open end, 8... Fluororesin perforated tube, 4... Fluororesin network, 5
.. 6... Outer container, 7... Support plate, 8... Tubular filter body, 9... Inlet, 10... Outlet, 11... Sealing part, 12... Fusion part, 13 ...PTFE porous membrane. 71 Figure Yoshi 2 Figure A B '', 4 Figure W5 Figure AB C Pi left 6 Figure
Claims (7)
装置であって、該管状濾過体が孔径の異なる2種類のポ
リテトラフルオロエチレン多孔質膜を重ね合わせて弗素
樹脂管状支持体の外部を覆った構造を有し、かつ該管状
濾過体が流体の入口及び出口を有する弗素樹脂容器内に
配置されたことを特徴とする濾過装置。(1) Tubular - A filtration device that filters fluid from the outside to the inside, in which the tubular filter body is formed by overlapping two types of polytetrafluoroethylene porous membranes with different pore diameters to form a fluororesin tubular support body. 1. A filtration device, characterized in that the tubular filter body is disposed within a fluororesin container having a fluid inlet and an outlet.
ン多孔質膜が、ポリテトラフルオロエチレン多孔質シー
トを管状に接着加工したものとポリテトラフルオロエチ
レン多孔質チューブであることを特徴とする特許請求の
範囲第1項記載の一過装置。(2) A patent claim characterized in that two types of polytetrafluoroethylene porous membranes having different pore sizes are a polytetrafluoroethylene porous sheet glued into a tubular shape and a polytetrafluoroethylene porous tube. A transient device according to scope 1.
01〜100μmの孔径を有し、ポリテトラフルオロエ
チレン多孔質チューブが081〜500μInの孔径を
有することを特徴とする特許請求の範囲第2項記載の濾
過装置。(3) Polytetrafluoroethylene porous sheet with 0.
3. The filtration device according to claim 2, wherein the polytetrafluoroethylene porous tube has a pore size of 0.01 to 100 μm and a pore size of 0.81 to 500 μIn.
繊維により互に連結された結節とから成るミクロ構造を
有することを特徴とする特許請求の範囲第1項記載の濾
過装置。(4) The filtration device according to claim 1, wherein the polytetrafluoroethylene porous membrane has a microstructure consisting of fibers and nodes interconnected by the fibers.
する特許請求の範囲第1項記載の一過装置。(5) The filtration device according to claim 1, wherein the tubular filter body has a shape with one end closed.
ン粒体の焼結多孔成形管であることを特徴とする特許請
求の範囲第1項記載の濾過装置。(6) The filtration device according to claim 1, wherein the fluororesin tubular support is a sintered porous tube made of polytetrafluoroethylene particles.
弗素樹脂の網状成形品又は不織布で覆った構造を有する
ことを特徴とする特許請求の範囲第1項記載の濾過装置
。(7) The filtration device according to claim 1, wherein the fluororesin tubular support has a structure in which the outside of the perforated fluororesin tube is covered with a fluororesin mesh molded product or a nonwoven fabric.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16995983A JPS6061018A (en) | 1983-09-13 | 1983-09-13 | Filtering apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16995983A JPS6061018A (en) | 1983-09-13 | 1983-09-13 | Filtering apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6061018A true JPS6061018A (en) | 1985-04-08 |
Family
ID=15896002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16995983A Pending JPS6061018A (en) | 1983-09-13 | 1983-09-13 | Filtering apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6061018A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6133609U (en) * | 1984-07-31 | 1986-02-28 | ジヤパンゴアテツクス株式会社 | Pipe filter member |
JPS61204613U (en) * | 1985-06-06 | 1986-12-23 | ||
JPS6377615U (en) * | 1986-11-07 | 1988-05-23 | ||
WO1991010495A1 (en) * | 1990-01-22 | 1991-07-25 | Parker Hannifin Corporation | Laminated microporous fluorocarbon membrane and fluorocarbon filter cartridge using same |
WO1993013849A1 (en) * | 1992-01-14 | 1993-07-22 | Daikin Industries, Ltd. | Filter and filter element |
FR2820056A1 (en) * | 2001-01-31 | 2002-08-02 | Toshiba Kk | FILTERING APPARATUS, ASSOCIATED BACKWASHING METHOD, FILTERING DEVICE AND POWER PLANT |
US7735660B2 (en) | 2002-10-23 | 2010-06-15 | Sumitomo Electric Fine Polymer, Inc. | Porous multilayered hollow fiber and filtration module, and method of manufacturing porous multilayered hollow fiber |
JP2011031122A (en) * | 2009-07-29 | 2011-02-17 | Sumitomo Electric Ind Ltd | Multilayered porous hollow fiber, hollow fiber membrane module, and filtration apparatus |
-
1983
- 1983-09-13 JP JP16995983A patent/JPS6061018A/en active Pending
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6133609U (en) * | 1984-07-31 | 1986-02-28 | ジヤパンゴアテツクス株式会社 | Pipe filter member |
JPS61204613U (en) * | 1985-06-06 | 1986-12-23 | ||
JPH043607Y2 (en) * | 1985-06-06 | 1992-02-04 | ||
JPS6377615U (en) * | 1986-11-07 | 1988-05-23 | ||
WO1991010495A1 (en) * | 1990-01-22 | 1991-07-25 | Parker Hannifin Corporation | Laminated microporous fluorocarbon membrane and fluorocarbon filter cartridge using same |
US5154827A (en) * | 1990-01-22 | 1992-10-13 | Parker-Nannifin Corporation | Laminated microporous fluorocarbon membrane and fluorocarbon filter cartridge using same |
WO1993013849A1 (en) * | 1992-01-14 | 1993-07-22 | Daikin Industries, Ltd. | Filter and filter element |
US5409515A (en) * | 1992-01-14 | 1995-04-25 | Daikin Industries, Ltd. | Filter apparatus and filter element |
FR2820056A1 (en) * | 2001-01-31 | 2002-08-02 | Toshiba Kk | FILTERING APPARATUS, ASSOCIATED BACKWASHING METHOD, FILTERING DEVICE AND POWER PLANT |
US7309424B2 (en) | 2001-01-31 | 2007-12-18 | Kabushiki Kaisha Toshiba | Filtering apparatus, back wash method therefor, filtering device and power plant |
US7754074B2 (en) | 2001-01-31 | 2010-07-13 | Kabushiki Kaisha Toshiba | Filtering apparatus, back wash method therefor, filtering device and power plant |
US7735660B2 (en) | 2002-10-23 | 2010-06-15 | Sumitomo Electric Fine Polymer, Inc. | Porous multilayered hollow fiber and filtration module, and method of manufacturing porous multilayered hollow fiber |
JP2011031122A (en) * | 2009-07-29 | 2011-02-17 | Sumitomo Electric Ind Ltd | Multilayered porous hollow fiber, hollow fiber membrane module, and filtration apparatus |
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