JPH0929071A - Heat-resistant spiral type separation membrane module - Google Patents
Heat-resistant spiral type separation membrane moduleInfo
- Publication number
- JPH0929071A JPH0929071A JP18144095A JP18144095A JPH0929071A JP H0929071 A JPH0929071 A JP H0929071A JP 18144095 A JP18144095 A JP 18144095A JP 18144095 A JP18144095 A JP 18144095A JP H0929071 A JPH0929071 A JP H0929071A
- Authority
- JP
- Japan
- Prior art keywords
- separation membrane
- raw water
- membrane module
- water
- water passage
- 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.)
- Pending
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、逆浸透膜分離装置、限
外濾過装置或いは精密濾過装置等の膜分離装置に用いら
れるスパイラル型分離膜モジュールに関するものであ
る。より詳しくは、熱水や高温の原水を処理することを
可能としたスパイラル型分離膜モジュールに関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spiral type separation membrane module used in a membrane separation device such as a reverse osmosis membrane separation device, an ultrafiltration device or a microfiltration device. More specifically, it relates to a spiral separation membrane module capable of treating hot water or high-temperature raw water.
【０００２】[0002]
【従来の技術】分離膜が袋状に形成され、内部に透過水
流路材を備えて、この内部の一端が集水管に連通した３
層構造体に原水流路材を重ね合わせて、該集水管に巻き
回されたスパイラル型分離膜モジュールが知られてい
る。原水は袋状の分離膜の外部を通水され、袋状の分離
膜の内部に透過してきた透過水は、該分離膜内が連通さ
れている集水管内へ流れ込み、膜モジュール外に抜き出
される。上記のスパイラル型分離膜モジュールにおいて
は、膜間に原水が通る流路を形成するために原水流路材
が用いられ、分離膜の内部に透過してきた透過水が通る
流路を形成するために透過水流路材が用いられている。
従来の上記のスパイラル型分離膜モジュールは専ら灌水
や海水の脱塩を目的として用いられており、使用する水
温は４０℃以下である。2. Description of the Related Art A separation membrane is formed in the shape of a bag, and a permeated water flow path member is provided inside, and one end of the inside communicates with a water collecting pipe.
There is known a spiral separation membrane module in which a raw water flow channel material is superposed on a layered structure and wound around the water collecting pipe. The raw water is passed through the outside of the bag-shaped separation membrane, and the permeated water that has permeated into the inside of the bag-shaped separation membrane flows into the water collection pipe that communicates with the inside of the separation membrane and is extracted outside the membrane module. Be done. In the above spiral type separation membrane module, a raw water flow channel material is used to form a flow path through which raw water passes, and in order to form a flow path through which permeated water that has permeated inside the separation membrane passes. A permeate flow channel material is used.
The conventional spiral separation membrane module described above is used exclusively for the purpose of irrigation and desalination of seawater, and the water temperature used is 40 ° C. or lower.
【０００３】[0003]
【発明が解決しようとする課題】ところが膜モジュール
の処理対象とする原液が食品用の液や医薬用の液である
場合、無菌であることが要求される。そのため膜分離処
理の開始前あるいは終了後に雑菌汚染を防ぐために熱水
による殺菌を行う。或いは、汚染防止や粘度を調整する
ためや結晶化を防止するために処理対象とする原液その
ものを４０℃を超える高温で処理することがある。However, when the undiluted solution to be treated by the membrane module is a food solution or a medicinal solution, it is required to be aseptic. Therefore, sterilization with hot water is performed before or after the membrane separation treatment to prevent contamination of various bacteria. Alternatively, the undiluted solution itself to be treated may be treated at a high temperature of more than 40 ° C. in order to prevent contamination, adjust viscosity, or prevent crystallization.
【０００４】従来の透過水流路材や原水流路材の素材と
しては、ポリエステル繊維の織物をエポキシ樹脂で強化
したものやポリエステル繊維の織物を溶融固着させたも
のが主に用いられている。上記溶融固着は、ポリエステ
ル繊維などを単に織っただけの強度が小さいものの強度
アップを図るためのもので、特開昭６０−１９００１に
開示されている。ところが溶融固着のネットであれば、
流路の空隙が狭く、スパイラル型分離膜モジュールにお
いては、特に透過抵抗が大きくなる点で不都合である。
そのため、９０℃以上の高温下の無加圧状態で、あるい
は６０℃以上の高温下で１０kgf/cm2G以上の加圧状態で
使用されれば、上記透過水流路材や原水流路材は、圧縮
変形をおこし、どちらか一方かあるいは両方の流路形成
がくずれ、発生する流路抵抗のため原水や透過水が充分
に流れなくなる。特に透過水側では差圧として、原水の
供給圧をまともに受けるため、上記透過水流路材は圧縮
変形をおこしやすい。さらには上記透過水流路材や原水
流路材に含まれる有機成分が溶出して透過水や原水に混
入し、製品液を汚染することもある。As a material for the conventional permeated water flow path material or raw water flow path material, a material in which a polyester fiber woven fabric is reinforced with an epoxy resin or a polyester fiber woven fabric fused and fixed is mainly used. The melt fixation is intended to increase the strength of polyester fiber or the like, which is low in strength just by weaving it, and is disclosed in JP-A-60-19001. However, if it is a melt-fixed net,
This is disadvantageous in that the permeation resistance is increased especially in the spiral type separation membrane module because the voids in the flow path are narrow.
Therefore, when used in a non-pressurized state at a high temperature of 90 ° C. or higher, or in a pressurized state of 10 kgf / cm 2 G or higher at a high temperature of 60 ° C. or higher, the permeated water channel material or the raw water channel material becomes However, due to compressive deformation, formation of one or both of the flow paths is disrupted, and the resulting flow resistance causes insufficient flow of raw water and permeate. Particularly, since the permeated water side receives the supply pressure of the raw water as a differential pressure, the permeated water flow path member is likely to be compressed and deformed. Further, the organic components contained in the permeated water flow channel material and the raw water flow channel material may be eluted and mixed into the permeated water and the raw water to contaminate the product liquid.
【０００５】本発明の目的は、上記従来技術の問題を解
決するためになされたものであって、熱水や高温の原水
を処理することによって、透過水流路材や原水流路材
は、圧縮変形をおこすことなく、いずれの流路形成がく
ずれることがなく、発生する流路抵抗のため原水や透過
水が充分に流れなくなるということもない、さらには上
記透過水流路材や原水流路材に含まれる有機成分が溶出
して透過水や原水に混入し、製品液を汚染することがな
い、すなわち、熱水や高温の原水を処理することを可能
とした実用的なスパイラル型分離膜モジュールを提供す
ることにある。The object of the present invention is to solve the above-mentioned problems of the prior art. By treating hot water or high temperature raw water, the permeate flow passage material and the raw water flow passage material are compressed. Without causing deformation, any flow path formation does not collapse, and there is no possibility that raw water or permeated water will not sufficiently flow due to generated flow path resistance. Furthermore, the above permeated water flow path material or raw water flow path material Practical spiral-type separation membrane module that can treat hot water and high-temperature raw water without contaminating the product liquid by eluting the organic components contained in permeated water or raw water. To provide.
【０００６】[0006]
【課題を解決するための手段】本発明の耐熱性スパイラ
ル型分離膜モジュールは、袋状に形成され、内部に透過
水流路材を備えて、この内部の一端が集水管に連通する
ように該集水管に巻き回された分離膜を有し、かつ該分
離膜に隣接して原水流路材を備えて原水の供給圧によっ
て膜分離処理するスパイラル型分離膜モジュールにおい
て、該透過水流路材が耐熱性プラスチック繊維を平織り
したネットからなる構成である。The heat-resistant spiral type separation membrane module of the present invention is formed in a bag shape and is provided with a permeate flow passage member inside, and one end of the inside is connected to a water collecting pipe. In a spiral-type separation membrane module having a separation membrane wound around a water collection pipe, and having a raw water channel material adjacent to the separation membrane and performing membrane separation treatment by the supply pressure of raw water, the permeated flow channel material is It consists of a net woven of heat-resistant plastic fibers.
【０００７】本発明で用いる透過水流路材は、耐熱性プ
ラスチック繊維を平織りしたネットからなる構成であ
る。耐熱性プラスチック繊維は、大気圧での耐熱温度が
１20℃以上のプラスチック繊維であれば、特に限定され
るものではなく、ポリフェニレンサルファイド製繊維や
ポリアミド製繊維などを用いることができ、例えば、ポ
リフェニレンサルファイド製繊維を平織りしたネットか
らなる透過水流路材が挙げられる。本発明で用いる上記
耐熱温度とは、熱変形温度（応力18.6kgf/cm2)を表す。The permeate channel material used in the present invention is composed of a net woven of heat resistant plastic fibers. The heat-resistant plastic fiber is not particularly limited as long as it has a heat-resistant temperature at atmospheric pressure of 120 ° C. or higher, and a polyphenylene sulfide fiber, a polyamide fiber, or the like can be used. For example, polyphenylene sulfide An example of the permeate flow channel material is a net made by weaving fibers. The heat resistant temperature used in the present invention means a heat distortion temperature (stress 18.6 kgf / cm 2 ).
【０００８】本発明で用いる耐熱性プラスチック繊維の
平織りしたネットとは、図１に示したように縦糸繊維と
横糸繊維を交互に織ったものである。The plain-woven net of heat-resistant plastic fibers used in the present invention is one in which warp fibers and weft fibers are alternately woven as shown in FIG.
【０００９】本発明で用いる透過水流路材の場合、該繊
維の線径ｄは、0.1mm 未満では透過水流路材としてのネ
ットの厚さが薄くなり、スパイラル型分離膜モジュール
内の分離膜の充填密度は増加するが、透過水流路が狭く
なり、透過水が流れる流路抵抗が増し、透過水が充分に
流れなくなる。一方、該繊維の線径ｄが１mmを超えると
透過水が充分に流れるが、スパイラル型分離膜モジュー
ル内の分離膜の充填密度が小さくなり、膜面積が減少
し、実用性を欠くスパイラル型分離膜モジュールとな
る。従って、透過水流路材の場合、該繊維の線径ｄは
０．１〜１mmが好ましく用いられる。In the case of the permeate flow channel material used in the present invention, if the fiber diameter d is less than 0.1 mm, the thickness of the net as the permeate flow channel material will be small, and the separation membrane in the spiral separation membrane module will be thin. Although the packing density increases, the permeate flow channel becomes narrower, the flow channel resistance for the permeate flow increases, and the permeate does not flow sufficiently. On the other hand, when the fiber diameter d exceeds 1 mm, the permeated water flows sufficiently, but the packing density of the separation membrane in the spiral separation membrane module is reduced, the membrane area is reduced, and the spiral separation is impractical. It becomes a membrane module. Therefore, in the case of a permeate flow channel material, the fiber diameter d is preferably 0.1 to 1 mm.
【００１０】本発明で用いる透過水流路材の場合、繊維
間隔ｓが０．１mm未満では透過側の流路抵抗が増加し、
透過水が十分に流れなくなり、実用性が満たされなくな
る。一方、該繊維間隔ｓが１mmを超えると圧力付与時に
該繊維の形状が分離膜に転写され、該分離膜を損傷する
ことになり、分離膜性能の低下を招くことになり、実用
性を欠くスパイラル型分離膜モジュールとなる。従っ
て、透過水流路材の場合、該繊維間隔ｓは０．１〜１mm
が好ましく用いられる。In the case of the permeate channel material used in the present invention, when the fiber spacing s is less than 0.1 mm, the channel resistance on the permeate side increases,
The permeated water will not flow sufficiently and the practicality will not be satisfied. On the other hand, when the fiber spacing s exceeds 1 mm, the shape of the fibers is transferred to the separation membrane when pressure is applied, and the separation membrane is damaged, resulting in deterioration of the performance of the separation membrane, which is impractical. It becomes a spiral type separation membrane module. Therefore, in the case of a permeate flow channel material, the fiber spacing s is 0.1 to 1 mm.
Is preferably used.
【００１１】本発明においては、原水流路材を透過水流
路材と同様に耐熱性プラスチック繊維を平織りしたネッ
トとすることができる。但し、原水側は原水の供給圧を
差圧としてみれば、透過水側ほど過酷な差圧を受けない
ので、運転圧力、運転温度および供給する原液の性状や
処理後の透過側あるいは濃縮側の求められる仕様によっ
て、原水流路材材質は適宜選定される。また、上記耐熱
性プラスチックではないが、ポリプロピレン繊維を平織
りしたネットを原水流路材として用いることができる。
上記ポリプロピレンの熱変形温度（応力18.6kgf/cm2)は
115℃であるが、運転圧力、運転温度および供給する原
液の性状や処理後の透過側あるいは濃縮側の求められる
仕様によって、適宜選定される。例えば、９０℃の熱水
による無加圧での１時間運転であれば、上記ポリプロピ
レンを原水流路材の材質として用いることができる。上
記ポリプロピレンは、前期耐熱性プラスチックと比較す
ると、安価で得られるという特徴も持つ。本発明で用い
る原水流路材の場合、該繊維の線径ｄは、０．１mm未満
では原水流路材としてのネットの厚さが薄くなり、スパ
イラル型分離膜モジュール内の分離膜の充填密度は増加
するが、原水流路が狭くなり、原水が流れる流路抵抗が
増し、原水が充分に流れなくなる。また、原水流路材に
よる原水の乱流が弱くなり、膜面近傍での攪拌作用が不
充分となって、膜面に濃度分極層が形成されやすくな
る。そのために膜分離性能が低下したり、膜面汚染の原
因となる。一方、該繊維の線径ｄが１mmを超えると原水
が充分に流れるが、スパイラル型分離膜モジュール内の
分離膜の充填密度が小さくなり、膜面積が減少し、実用
性を欠くスパイラル型分離膜モジュールとなる。従っ
て、原水流路材の場合、該繊維の線径ｄは０．１〜１mm
が好ましく用いられる。In the present invention, the raw water flow path material may be a net in which heat-resistant plastic fibers are plain-woven, like the permeated water flow path material. However, the raw water side does not receive as severe a pressure difference as the permeated water side when the raw water supply pressure is taken as the differential pressure, so the operating pressure, operating temperature, and the properties of the undiluted solution to be supplied and the permeated or concentrated side after the treatment The material of the raw water flow path material is appropriately selected according to the required specifications. Further, although not the above heat-resistant plastic, a plain weave net of polypropylene fiber can be used as the raw water flow path material.
The heat distortion temperature (stress 18.6kgf / cm 2 ) of the above polypropylene is
Although it is 115 ° C, it is appropriately selected depending on the operating pressure, the operating temperature, the properties of the stock solution to be supplied, and the specifications required on the permeation side or the concentration side after the treatment. For example, the polypropylene can be used as the material of the raw water flow path material if it is operated for 1 hour without pressurization with hot water of 90 ° C. The polypropylene also has a feature that it can be obtained at a lower cost than the heat-resistant plastic used in the previous period. In the case of the raw water flow channel material used in the present invention, if the fiber diameter d is less than 0.1 mm, the net as the raw water flow channel material becomes thin, and the packing density of the separation membrane in the spiral separation membrane module becomes small. However, the raw water flow passage becomes narrower, the flow resistance of the raw water increases, and the raw water does not flow sufficiently. Further, the turbulent flow of the raw water due to the raw water flow path material becomes weak, the stirring action near the film surface becomes insufficient, and the concentration polarization layer is easily formed on the film surface. Therefore, the membrane separation performance is deteriorated and the membrane surface is contaminated. On the other hand, when the fiber diameter d exceeds 1 mm, the raw water flows sufficiently, but the packing density of the separation membrane in the spiral separation membrane module becomes small, the membrane area decreases, and the spiral separation membrane lacks practicality. Become a module. Therefore, in the case of raw water flow channel material, the fiber diameter d is 0.1 to 1 mm.
Is preferably used.
【００１２】本発明で用いる原水流路材の場合、該繊維
間隔ｓが、１mm未満では原水流路の空隙が狭く、原水側
の流路抵抗が増加し、原水が充分に流れなくなり、分離
膜性能が低下する。一方、該繊維間隔ｓが５mmを超える
と原水流路材による原水の乱流が弱くなり、膜面近傍で
の攪拌作用が不充分となって、膜面に濃度分極層が形成
されやすくなる。そのために膜分離性能が低下したり、
膜面汚染の原因となり、実用性を欠くスパイラル型分離
膜モジュールとなる。従って、原水流路材の場合、該繊
維間隔ｓは１〜５mmが好ましく用いられる。In the case of the raw water flow channel material used in the present invention, when the fiber spacing s is less than 1 mm, the raw water flow channel has a narrow void, the flow channel resistance on the raw water side increases, and the raw water does not flow sufficiently, resulting in a separation membrane. Performance decreases. On the other hand, when the fiber spacing s exceeds 5 mm, the turbulent flow of the raw water due to the raw water flow channel material becomes weak, the stirring action near the film surface becomes insufficient, and the concentration polarization layer is easily formed on the film surface. As a result, the membrane separation performance decreases,
It becomes a spiral type separation membrane module which causes membrane surface contamination and lacks practicality. Therefore, in the case of a raw water channel material, the fiber spacing s is preferably 1 to 5 mm.
【００１３】[0013]
実施例１ 芳香族ポリアミド系複合逆浸透膜（日東電工（株）製Ｎ
ＴＲ−７５９ＨＧ）と透過水流路材が耐熱性プラスチッ
ク繊維を平織りしたネットから耐熱性スパイラル型分離
膜モジュール（膜面積６.5ｍ2)を製作した。透過水流路
材には、ポリフェニレンサルファイド製繊維を用い、該
繊維の線径は０．２mm、該繊維間の距離は０．３mmの平
織りしたネットを用いた。原水流路材には耐熱性プラス
チック繊維ではないポリプロピレン製繊維を用いた。該
繊維の線径は0.3 mm、該繊維間の距離は 3mmの平織りし
たネットを用いた。上記複合逆浸透膜を１５００ppm Na
Cl水溶液(pH=６.5に調整）を原水に用いて、圧力１５kg
f/cm2 、温度２３℃の条件下で逆浸透試験を行った。次
に上記耐熱性スパイラル型分離膜モジュールを用いて、
温度９０℃の熱水にて無加圧で１時間滅菌処理のため運
転した。運転後、前記の逆浸透試験を行った。Example 1 Aromatic polyamide composite reverse osmosis membrane (N manufactured by Nitto Denko Corporation)
TR-759HG) and a net of permeated water flow path plain weave of heat-resistant plastic fiber were used to produce a heat-resistant spiral separation membrane module (membrane area 6.5 m 2 ). A fiber made of polyphenylene sulfide was used as the permeate flow channel material, and a plain-woven net having a fiber diameter of 0.2 mm and a distance between the fibers of 0.3 mm was used. A polypropylene fiber, which is not a heat-resistant plastic fiber, was used as the raw water channel material. A plain-woven net having a fiber diameter of 0.3 mm and a distance between the fibers of 3 mm was used. Use the above composite reverse osmosis membrane with 1500ppm Na
Cl aqueous solution (adjusted to pH = 6.5) is used as raw water, and pressure is 15 kg.
A reverse osmosis test was conducted under the conditions of f / cm 2 and temperature of 23 ° C. Next, using the heat-resistant spiral type separation membrane module,
The operation was carried out for 1 hour for sterilization with no pressure using hot water at a temperature of 90 ° C. After the operation, the above reverse osmosis test was performed.
【００１４】比較例１ 実施例１において、透過水流路材をポリエステル繊維を
エポキシ樹脂で強化したものとした以外は、換言すれば
非耐熱性プラスチック繊維で製作された透過水流路材を
用いた以外は、実施例１と同様にして温度９０℃の熱水
にて無加圧で１時間滅菌処理のため運転した。実施例１
と同様に、前記の逆浸透試験を行い、スパイラル型分離
膜モジュールの性能を評価した。Comparative Example 1 In Example 1, except that the permeate flow channel material was made of polyester fiber reinforced with epoxy resin, in other words, a permeate flow channel material made of non-heat resistant plastic fiber was used. Was operated in the same manner as in Example 1 for 1 hour for sterilization treatment with hot water at a temperature of 90 ° C. without pressurization. Example 1
Similarly to the above, the reverse osmosis test was performed to evaluate the performance of the spiral separation membrane module.
【００１５】比較例１の場合は、９０℃の１時間滅菌処
理のための運転前後において透過水量（ｍ3/day)は７．
０から４．５に大幅に低下する。しかし、実施例１の本
発明の耐熱性スパイラル型分離膜モジュールを使用すれ
ば、９０℃の１時間滅菌処理のための運転前後において
透過水量（ｍ3/day)は７．０から６．８までの低下にと
どめることができる。即ち本発明の分離膜モジュールを
用いることで熱水処理後の透過水量は、従来の分離膜モ
ジュールを用いる場合の１．５倍以上を達成できる。ま
た、比較例１の場合は、９０℃の１時間滅菌処理のため
の運転直後に有機成分が透過水に混入していることを紫
外・可視分光光度計を用いて確認したが、実施例１の場
合は、同様の分析を行った結果、上記有機成分が透過水
に混入していないことを確認した。In the case of Comparative Example 1, the permeated water amount (m 3 / day) was 7. before and after the operation for sterilization treatment at 90 ° C. for 1 hour.
It significantly drops from 0 to 4.5. However, when the heat-resistant spiral wound type separation membrane module of the present invention of Example 1 was used, the permeated water amount (m 3 / day) before and after the operation for sterilization treatment at 90 ° C. for 1 hour was 7.0 to 6.8. Can be reduced to up to. That is, by using the separation membrane module of the present invention, the amount of permeated water after hot water treatment can be 1.5 times or more that in the case of using the conventional separation membrane module. Further, in the case of Comparative Example 1, it was confirmed using an ultraviolet-visible spectrophotometer that the organic component was mixed in the permeated water immediately after the operation for sterilization treatment at 90 ° C. for 1 hour. In the case of, as a result of the same analysis, it was confirmed that the above organic components were not mixed in the permeated water.
【００１６】[0016]
【発明の効果】本発明によれば、熱水や高温の原水を処
理することによって、透過水流路材は、圧縮変形をおこ
すことなく、流路形成も変形による流路抵抗の増大がな
いので、透過水の流量を確保できる。さらには上記透過
水流路材に含まれる有機成分が溶出して透過水に混入
し、透過水製品液を汚染することがない。たとえば、無
菌であることが要求される食品用の液や医薬用の液であ
る場合、膜分離処理の開始前あるいは終了後に雑菌汚染
を防ぐために熱水による殺菌を行うことができ、或い
は、汚染防止や粘度を調整するためや結晶化を防止する
ために処理対象とする原水を高温で処理することができ
るため極めて有用である。さらに、原水流路材を透過水
流路材と同様に耐熱性プラスチック繊維を平織りしたネ
ットとすれば、上記原水流路材に含まれる有機成分が溶
出して濃縮液側に混入し、濃縮製品液を汚染することが
ない。According to the present invention, by treating hot water or high-temperature raw water, the permeate flow channel material does not undergo compressive deformation and the flow channel formation does not increase the flow channel resistance due to the deformation. The flow rate of permeate can be secured. Furthermore, the organic component contained in the permeate flow channel material is not eluted and mixed into the permeate, and the permeate product liquid is not contaminated. For example, in the case of a liquid for food or a liquid for medicine that is required to be aseptic, it can be sterilized with hot water before or after the membrane separation treatment to prevent contamination of various bacteria, or It is extremely useful because the raw water to be treated can be treated at a high temperature in order to prevent or adjust the viscosity or prevent crystallization. Further, if the raw water channel material is a net woven of heat-resistant plastic fiber like the permeated water channel material, the organic components contained in the raw water channel material will be eluted and mixed into the concentrated liquid side, resulting in a concentrated product liquid. Never pollute.
【図１】本発明の実施例に係る平織りしたネットを示す
説明図である。FIG. 1 is an explanatory view showing a plain-woven net according to an embodiment of the present invention.
１ 耐熱性プラスチック繊維 ｄ 繊維線径 ｓ 繊維間隔 1 Heat-resistant plastic fiber d Fiber wire diameter s Fiber spacing
Claims (3)
備えて、この内部の一端が集水管に連通するように該集
水管に巻き回された分離膜を有し、かつ該分離膜に隣接
して原水流路材を備えて原水の供給圧によって膜分離処
理するスパイラル型分離膜モジュールにおいて、該透過
水流路材が耐熱性プラスチック繊維を平織りしたネット
からなることを特徴とする耐熱性スパイラル型分離膜モ
ジュール。1. A separation membrane which is formed in a bag shape and which is provided with a permeated water flow path member inside and which has a separation membrane wound around the water collecting pipe so that one end of the inside communicates with the water collecting pipe, and the separation membrane. In a spiral wound type separation membrane module which is provided with a raw water channel material adjacent to a membrane and is subjected to membrane separation treatment by the supply pressure of raw water, the permeated water channel material is characterized by comprising a net woven of heat resistant plastic fiber Spiral type separation membrane module.
平織りしたネットからなることを特徴とする請求項１記
載の耐熱性スパイラル型分離膜モジュール。2. The heat resistant spiral wound type separation membrane module according to claim 1, wherein the raw water flow path member comprises a net woven of heat resistant plastic fibers.
織りしたネットからなることを特徴とする請求項１記載
の耐熱性スパイラル型分離膜モジュール。3. The heat resistant spiral wound type separation membrane module according to claim 1, wherein the raw water flow path member comprises a net made by plain weaving polypropylene fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18144095A JPH0929071A (en) | 1995-07-18 | 1995-07-18 | Heat-resistant spiral type separation membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18144095A JPH0929071A (en) | 1995-07-18 | 1995-07-18 | Heat-resistant spiral type separation membrane module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0929071A true JPH0929071A (en) | 1997-02-04 |
Family
ID=16100813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18144095A Pending JPH0929071A (en) | 1995-07-18 | 1995-07-18 | Heat-resistant spiral type separation membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0929071A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011152484A1 (en) * | 2010-06-03 | 2011-12-08 | 東レ株式会社 | Separation membrane element |
| JP2014046293A (en) * | 2012-09-03 | 2014-03-17 | Dainippon Plastics Co Ltd | Net comprised of polyphenylene sulfide resin composition |
| JP2014237124A (en) * | 2013-05-10 | 2014-12-18 | ポール・コーポレーションＰａｌｌＣｏｒｐｏｒａｔｉｏｎ | Support element |
| WO2015115575A1 (en) * | 2014-01-31 | 2015-08-06 | 東レ株式会社 | Separation membrane, sheet channel material, and separation membrane element |
-
1995
- 1995-07-18 JP JP18144095A patent/JPH0929071A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011152484A1 (en) * | 2010-06-03 | 2011-12-08 | 東レ株式会社 | Separation membrane element |
| JPWO2011152484A1 (en) * | 2010-06-03 | 2013-08-01 | 東レ株式会社 | Separation membrane element |
| JP2014140846A (en) * | 2010-06-03 | 2014-08-07 | Toray Ind Inc | Separation membrane element |
| AU2011259905B2 (en) * | 2010-06-03 | 2015-05-28 | Toray Industries, Inc. | Separation membrane element |
| JP2015226908A (en) * | 2010-06-03 | 2015-12-17 | 東レ株式会社 | Separation membrane element |
| US9387445B2 (en) | 2010-06-03 | 2016-07-12 | Toray Industries, Inc. | Separation membrane element |
| JP2014046293A (en) * | 2012-09-03 | 2014-03-17 | Dainippon Plastics Co Ltd | Net comprised of polyphenylene sulfide resin composition |
| JP2014237124A (en) * | 2013-05-10 | 2014-12-18 | ポール・コーポレーションＰａｌｌＣｏｒｐｏｒａｔｉｏｎ | Support element |
| WO2015115575A1 (en) * | 2014-01-31 | 2015-08-06 | 東レ株式会社 | Separation membrane, sheet channel material, and separation membrane element |
| CN105939776A (en) * | 2014-01-31 | 2016-09-14 | 东丽株式会社 | Separation membrane, sheet channel material, and separation membrane element |
| JPWO2015115575A1 (en) * | 2014-01-31 | 2017-03-23 | 東レ株式会社 | Separation membrane, sheet channel material and separation membrane element |
| US10159942B2 (en) | 2014-01-31 | 2018-12-25 | Toray Industries, Inc. | Separation membrane, sheet channel material, and separation membrane element |
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