JP2882649B2 - Repair method for hollow membrane module - Google Patents

Repair method for hollow membrane module

Info

Publication number
JP2882649B2
JP2882649B2 JP28852189A JP28852189A JP2882649B2 JP 2882649 B2 JP2882649 B2 JP 2882649B2 JP 28852189 A JP28852189 A JP 28852189A JP 28852189 A JP28852189 A JP 28852189A JP 2882649 B2 JP2882649 B2 JP 2882649B2
Authority
JP
Japan
Prior art keywords
case
gap
hollow fiber
membrane module
agent
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 - Fee Related
Application number
JP28852189A
Other languages
Japanese (ja)
Other versions
JPH03151031A (en
Inventor
知貴 三橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nok Corp
Original Assignee
Nok Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=17731313&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JP2882649(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nok Corp filed Critical Nok Corp
Priority to JP28852189A priority Critical patent/JP2882649B2/en
Publication of JPH03151031A publication Critical patent/JPH03151031A/en
Application granted granted Critical
Publication of JP2882649B2 publication Critical patent/JP2882649B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
    • B29C65/542—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts by injection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
    • B29C65/544—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
    • B29C65/546—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts by gravity, e.g. by pouring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5227—Joining tubular articles for forming multi-tubular articles by longitudinally joining elementary tubular articles wall-to-wall (e.g. joining the wall of a first tubular article to the wall of a second tubular article) or for forming multilayer tubular articles
    • B29C66/52271—Joining tubular articles for forming multi-tubular articles by longitudinally joining elementary tubular articles wall-to-wall (e.g. joining the wall of a first tubular article to the wall of a second tubular article) or for forming multilayer tubular articles one tubular article being placed inside the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/69—General aspects of joining filaments 

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE:To easily and surely repair the gap by wetting a hollow fiber with a liq. to make it airtight, evacuating the case and sucking a bonding agent utilizing the air current leaking into the case from the gap formed at the solidified part of the agent. CONSTITUTION:Many hollow fibers 3 are placed in the case 2 so that the end of the fiber 3 is exposed at the case opening. The bonding agent 4 is injected into the space between the bundled fibers 3 and that between the fiber 3 and the case 2 at the case opening region to fix the fibers. The fiber 3 is wetted with a liq. and made airtight, the case 2 is evacuated, the agent 4 is sucked utilizing the air current leaking into the case 2 from the gap formed at the solidified part 5 of the agent 4 to close the gap. Consequently, the gap is easily and surely repaired, and the product defect rate is reduced.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は選択透過性を有する中空糸を多数本使用して
流体を濾過する中空糸膜モジュールに関し、特にその補
修方法に関する。Description: TECHNICAL FIELD The present invention relates to a hollow fiber membrane module for filtering a fluid by using a large number of selectively permeable hollow fibers, and particularly to a repair method thereof.

（従来の技術） 従来の中空糸膜モジュールとしては、たとえば第４図
に示すようにして製造される。すなわち、円筒状のケー
ス100内に多数本の中空糸101を束ねて収納して構成され
る。中空糸101はその端部がケース100の一方の開口端部
100Aに露出するように収納される。中空糸101の固定
は、第４図（ｂ）に示すように、ケース100端部を蓋102
によって密封し、蓋102に設けた注入口103から液状の充
填接着剤104を注入し、中空糸101間の隙間および中空糸
101とケース100間の隙間を充填接着剤にて満たして固定
していた。そして、注入された充填接着剤が固化した
後、蓋102を取り除き、ケース100の端面から露出した中
空糸の端部を切除することにより、中空糸膜モジュール
が形成される。(Prior Art) A conventional hollow fiber membrane module is manufactured, for example, as shown in FIG. That is, a large number of hollow fibers 101 are bundled and stored in a cylindrical case 100. The end of the hollow fiber 101 is one open end of the case 100
Stored to be exposed to 100A. To fix the hollow fiber 101, as shown in FIG.
The liquid filling adhesive 104 is injected from an inlet 103 provided in the lid 102, and the gap between the hollow fibers 101 and the hollow fiber
The gap between 101 and case 100 was filled and fixed with a filling adhesive. After the injected adhesive is solidified, the lid 102 is removed, and the end of the hollow fiber exposed from the end face of the case 100 is cut off to form a hollow fiber membrane module.

（発明が解決しようとする課題） しかしながら、上記した従来技術の場合には、中空糸
101の束が密であったり、充填接着剤104の流れが悪かっ
たりすると、第４図（ｃ）に示すように、中空糸101と
充填接着剤104との間に隙間105が発生するという問題が
あった。このように隙間105が発生すると、濾過膜とし
て使用する場合には漏れが生じるので補修する必要があ
る。ところが従来は有効な補修方法がなかった。(Problems to be Solved by the Invention) However, in the case of the above-described prior art, the hollow fiber
If the bundle of 101 is dense or the flow of the filling adhesive 104 is poor, a gap 105 is generated between the hollow fiber 101 and the filling adhesive 104 as shown in FIG. 4C. was there. When the gap 105 is generated as described above, a leak occurs when the gap 105 is used as a filtration membrane. However, there has been no effective repair method.

本発明は上記した従来技術の課題を解決するためにな
されたもので、その目的とするところは、充填接着剤の
固化部に生じた隙間を簡単に補修し得る中空糸膜モジュ
ールの補修方法を提供し、不良率の低減を図ることにあ
る。The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a method for repairing a hollow fiber membrane module that can easily repair a gap generated in a solidified portion of a filling adhesive. In order to reduce the defective rate.

（課題を解決するための手段） 上記目的を達成するために、本発明にあっては、ケー
ス内に多数の中空糸をケース開口部に中空糸の端部が露
出するように収納し、ケース開口部位にて、束ねた各中
空糸の間および中空糸とケースとの間に充填接着剤を注
入して固定した中空糸膜モジュールにおいて、 前記中空糸を液体で濡らして気密状態とし、その後ケ
ース内を減圧して充填接着剤の固化部に生じた隙間から
ケース内に漏洩する気流を利用して充填接着剤を吸引し
て隙間を塞ぐことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, according to the present invention, a large number of hollow fibers are housed in a case such that the ends of the hollow fibers are exposed at a case opening, and a case is provided. A hollow fiber membrane module in which a filling adhesive is injected and fixed between each bundled hollow fiber and between the hollow fiber and the case at the opening portion, wherein the hollow fiber is wetted with a liquid to be in an airtight state, and then the case The inside is decompressed and the gap is closed by suctioning the filling adhesive by using an air current leaking into the case from a gap formed in the solidified portion of the filling adhesive.

（作用） 上記構成の中空糸膜モジュールの補修方法によれば、
ケース内を減圧することにより、充填接着剤の固化部に
隙間があれば、この隙間からケース内に外気が流入す
る。この気流に沿って接着剤を流せば、隙間に充填接着
剤が深く浸入して隙間が塞がれる。(Action) According to the repair method for the hollow fiber membrane module having the above configuration,
By reducing the pressure in the case, if there is a gap in the solidified portion of the filling adhesive, outside air flows into the case from this gap. If the adhesive is caused to flow along the airflow, the filling adhesive penetrates deeply into the gap and the gap is closed.

（実施例） 以下に、本発明を図示の実施例を基づいて説明する。
１は中空糸膜モジュールであり、概略円筒状のケース２
と、このケース２内に収納される束ねられた多数の中空
糸３とから構成されている。この中空糸３は中央を曲げ
てその両端を揃えており、この中空糸３の端面がケース
２の一方側端部に露出するようになっている。そしてこ
の中空糸３の端部がケース２開口部位に充填接着剤とし
てのポッティング剤４によって接着固定されている。こ
のポッティング剤４は液状にて注入され、中空糸３と中
空糸３間および中空糸３とケース２間に充満して固化
し、中空糸３の端部をケース２に固定して中空糸膜モジ
ュール１を構成している。そして、ポッティング剤４が
行き渡らないでポッティング剤固化部５に隙間６が生じ
た場合、隙間６に補修用のポッティング剤４を注入され
る。(Example) Hereinafter, the present invention will be described based on an illustrated example.
Reference numeral 1 denotes a hollow fiber membrane module, which is a substantially cylindrical case 2
And a number of bundled hollow fibers 3 housed in the case 2. The hollow fiber 3 is bent at the center so that both ends thereof are aligned, and the end face of the hollow fiber 3 is exposed at one end of the case 2. The end of the hollow fiber 3 is bonded and fixed to the opening of the case 2 by a potting agent 4 as a filling adhesive. The potting agent 4 is injected in a liquid state, filled and solidified between the hollow fiber 3 and the hollow fiber 3 and between the hollow fiber 3 and the case 2, and the end of the hollow fiber 3 is fixed to the case 2 to form a hollow fiber membrane. Module 1 is configured. Then, when the gap 6 is formed in the potting agent solidified portion 5 without the potting agent 4 spreading, the repairing potting agent 4 is injected into the gap 6.

この隙間６の補修方法としては、第１に中空糸３から
空気が通らないように予め水等の液体で濡らしておく。As a method of repairing the gap 6, first, the hollow fiber 3 is wetted in advance with a liquid such as water so that air does not pass therethrough.

中空糸３水等で濡らしておくと、中空糸３を通じて、
空気が中空糸３の膜壁を通過しようとしても、水等が詰
まっているので空気の通過が阻害され、気密に保持され
る。Hollow fiber 3 When wet with water, etc., through hollow fiber 3,
Even if the air tries to pass through the membrane wall of the hollow fiber 3, the passage of the air is hindered because the water or the like is clogged, and the airtight is maintained.

次に、ケース２内を減圧状態とする。減圧するための
手段としては、第１図に示すようにポンプＰを用い、ケ
ース２の反ポッティング剤固化部５側の開口端部を蓋体
７にて気密状態に密閉し、ケース２内をポッテンィング
剤固化部５と蓋体７とによって密閉する。蓋体７は、ケ
ース２に対して着脱自在となっている。Next, the inside of the case 2 is brought into a reduced pressure state. As means for reducing the pressure, a pump P is used as shown in FIG. 1, the opening end of the case 2 on the side opposite to the potting agent solidifying section 5 is hermetically sealed with a lid 7, and the inside of the case 2 is sealed. The potting agent is solidified by the solidifying portion 5 and the lid 7. The lid 7 is detachable from the case 2.

そして、蓋体７にはパイプ８を介してポンプＰが接続
され、このポンプＰによって内部の空気を抜いて減圧す
るようになっている。パイプ８には減圧計９が取り付け
られケース２内の減圧状態をチェックできるようになっ
ている。A pump P is connected to the lid 7 via a pipe 8, and the pump P removes the internal air to reduce the pressure. A decompression gauge 9 is attached to the pipe 8 so that the decompression state in the case 2 can be checked.

しかして、ポンプＰを作動して、ケース２内部を減圧
状態とすると、ポッティング剤固化部５に隙間６がある
場合には、この隙間６を通じて外部の空気がケース２内
に漏洩、すなわちリークする。このリーク部分に第３図
に示すようにポッティング剤４を滴下する。すると、空
気の吸引力によりポッティング剤４が隙間６内に深く侵
入して隙間６が確実に塞がれる。When the inside of the case 2 is depressurized by operating the pump P, if there is a gap 6 in the potting agent solidifying portion 5, external air leaks into the case 2 through the gap 6, that is, leaks. . As shown in FIG. 3, a potting agent 4 is dropped on this leak portion. Then, the potting agent 4 penetrates deeply into the gap 6 due to the suction force of the air, and the gap 6 is securely closed.

隙間６が完全に塞がれたかどうかは、補修した後に、
たとえば減圧計９によって、減圧されたケース２内の圧
力が一定に保たれるどうかで判断することができる。す
なわち、隙間６の補修が不完全で空気のリークがある
と、圧力が徐々に増大していく。Whether the gap 6 has been completely closed or not
For example, the pressure gauge 9 can determine whether the pressure in the case 2 is kept constant. That is, if the gap 6 is incompletely repaired and air leaks, the pressure gradually increases.

そして、隙間６の補修が終了すると、上記蓋体を７を
ケース２から取り外す。When the repair of the gap 6 is completed, the lid 7 is removed from the case 2.

なお、本発明に使用される充填接着剤は、中空糸膜モ
ジュールの使用用途によって適宜決定されるが、使用用
途上特に制限がなければ充填接着が可能な接着剤は全て
使用することができる。The filling adhesive used in the present invention is appropriately determined depending on the intended use of the hollow fiber membrane module, but any adhesive that can be filled and adhered can be used unless there is a particular limitation on the intended use.

（発明の効果） 本発明は以上の構成および作用を有するもので、充填
接着剤の固化部に隙間が生じている場合に、ケース内を
減圧状態にしてケース内に漏洩する気流を利用して充填
接着剤を隙間に吸引するように構成したので、簡単にし
かも確実に補修することができる。したがって、補修作
業を効率的におこなうことができ、製品の不良率を低減
することができる。(Effect of the Invention) The present invention has the above-described configuration and operation, and utilizes the airflow leaking into the case by reducing the pressure inside the case when a gap is formed in the solidified portion of the filling adhesive. Since the filling adhesive is sucked into the gap, repair can be easily and reliably performed. Therefore, the repair work can be performed efficiently, and the defect rate of the product can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

第１図は本発明の一実施例に係る中空糸膜モジュールの
補修方法を示す概念構成図、第２図は第１図の要部縦断
面図、第３図は本発明の補修用のポッティグ剤注入状態
を示す部分斜視図、第４図（ａ）（ｂ）（ｃ）は従来の
中空糸膜モジュールの製造方法を示しており、同図
（ａ）は概略斜視図、同図（ｂ）は製造された従来の中
空糸膜モジュールの概略斜視図、同図（ｃ）は充填接着
剤固化部の隙間発生状態の部分平面図である。 符号の説明 １……中空糸膜モジュール ２……ケース、３……中空糸 ４……ポッティング剤（充填接着剤） ５……ポッティング剤固化部 ６……隙間、７……蓋体 ８……パイプ、９……減圧計 Ｐ……ポンプFIG. 1 is a conceptual configuration diagram showing a method of repairing a hollow fiber membrane module according to one embodiment of the present invention, FIG. 2 is a longitudinal sectional view of a main part of FIG. 1, and FIG. 3 is a potting for repair of the present invention. FIGS. 4 (a), 4 (b) and 4 (c) show a method for manufacturing a conventional hollow fiber membrane module, showing a state in which the agent is injected. FIG. 4 (a) is a schematic perspective view and FIG. 2) is a schematic perspective view of a manufactured conventional hollow fiber membrane module, and FIG. 2C is a partial plan view of the filled adhesive solidifying section in a state where a gap is generated. DESCRIPTION OF SYMBOLS 1 hollow fiber membrane module 2 case 3 hollow fiber 4 potting agent (filling adhesive) 5 potting agent solidifying section 6 gap 7 lid 8 Pipe, 9 ... Pressure reducer P ... Pump

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】ケース内に多数の中空糸をケース開口部に
中空糸の端部が露出するように収納し、ケース開口部位
にて、束ねた各中空糸の間および中空糸とケースとの間
に充填接着剤を注入して固定した中空糸膜モジュールに
おいて、 前記中空糸を液体で濡らして気密状態とし、その後ケー
ス内を減圧し、充填接着剤の固化部に生じた隙間からケ
ース内に漏洩する気流を利用して充填接着剤を吸引して
隙間を塞ぐことを特徴とする中空糸膜モジュールの補修
方法。A large number of hollow fibers are housed in a case so that the ends of the hollow fibers are exposed at a case opening, and a space between the bundled hollow fibers and between the hollow fibers and the case are formed at the case opening. In the hollow fiber membrane module in which the filling adhesive is injected and fixed, the hollow fiber is wetted with a liquid to be in an airtight state, and then the inside of the case is depressurized, and the inside of the case is reduced from the gap generated in the solidified portion of the filling adhesive. A method of repairing a hollow fiber membrane module, wherein a gap is closed by sucking a filling adhesive by using a leaking air flow.
JP28852189A 1989-11-06 1989-11-06 Repair method for hollow membrane module Expired - Fee Related JP2882649B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28852189A JP2882649B2 (en) 1989-11-06 1989-11-06 Repair method for hollow membrane module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28852189A JP2882649B2 (en) 1989-11-06 1989-11-06 Repair method for hollow membrane module

Publications (2)

Publication Number Publication Date
JPH03151031A JPH03151031A (en) 1991-06-27
JP2882649B2 true JP2882649B2 (en) 1999-04-12

Family

ID=17731313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28852189A Expired - Fee Related JP2882649B2 (en) 1989-11-06 1989-11-06 Repair method for hollow membrane module

Country Status (1)

Country Link
JP (1) JP2882649B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1007773C2 (en) * 1997-12-11 1999-06-14 Polva Pipelife Bv Gluing end of a pipe section to the coupling sleeve section of an auxiliary part, used to form e.g. well chambers or street drains

Also Published As

Publication number Publication date
JPH03151031A (en) 1991-06-27

Similar Documents

Publication Publication Date Title
JP2882649B2 (en) Repair method for hollow membrane module
JP3324900B2 (en) Hollow fiber membrane module
JP2005283342A (en) Method and device for inspecting liquid container
JPH0894477A (en) Leak detector for pipe
JP3685502B2 (en) Method for reinforcing hollow fiber membrane module adhesion interface
JPH0435727A (en) Method for repairing hollow-fiber membrane module
JP3769937B2 (en) Liquid crystal injection method and apparatus
KR100575453B1 (en) The apparatus for removing LC and the method of removing the same
JPH1190186A (en) Method of fixing edge of hollow yarn bundle
JPS57141528A (en) Leakage inspecting method
JPH06277460A (en) Production of hollow fiber membrane module
JP3597734B2 (en) Method of impregnating resin into pipe lining material
JPH0556227U (en) Hollow fiber membrane module
JP2006160536A (en) Method of and device for preventing degradation of concrete
JPS60118655A (en) Method for replacing gas in double glazing
JPS5912990Y2 (en) filter device
JP2005098920A (en) Leak test apparatus
JP5908141B2 (en) Bamboo tube sealing method and bamboo tube sealing device
KR101468797B1 (en) Potable vacuum inhaling apparatus
JPH08233790A (en) Couplant encapsulation apparatus
JPH05168867A (en) Production of hollow-fiber membrane module
JPS61131828A (en) Repairing method of pressure resisting casting
JPH0457350B2 (en)
JP3074955B2 (en) Liquid crystal injection device
JPH08179333A (en) Method for injecting liquid crystal and device therefor

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees