JP2004313852A - Filtrate piping structure of filter membrane module - Google Patents
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- 239000012528 membrane Substances 0.000 title claims abstract description 105
- 238000005259 measurement Methods 0.000 claims abstract description 26
- 238000001914 filtration Methods 0.000 claims description 93
- 239000011550 stock solution Substances 0.000 description 13
- 239000007788 liquid Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 6
- 238000000108 ultra-filtration Methods 0.000 description 6
- 238000004070 electrodeposition Methods 0.000 description 5
- 239000012510 hollow fiber Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001471 micro-filtration Methods 0.000 description 2
- 102100040892 Growth/differentiation factor 2 Human genes 0.000 description 1
- 101710204270 Growth/differentiation factor 2 Proteins 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
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Abstract
Description
【０００１】
【発明の属する技術分野】
本発明は、濾過装置に２以上に配列された濾過膜モジュールの個別濾液量を測定するために有効な濾過膜モジュールの濾液配管構造に関するものである。
【０００２】
【従来の技術】
濾過装置に２以上に配列された濾過膜モジュールは定期的に個別濾液量の測定がなされ、濾液量の低下している濾過膜モジュールは交換される。
従来の濾過膜モジュールの濾液配管構造について図３を用いて説明する。図３において、濾過膜モジュール１の濾液配管２は手動弁２ａを介して濾液集合管３に接続されており、濾液集合管３は全体濾液量測定用流量計１１を介して濾液タンク１２に接続されている（例えば、非特許文献１参照。）。
【０００３】
なお、通常、全体濾液量測定用流量計１１は濾液集合管に常設されており、通液するのみで流量の計測が可能な面積式流量計を用いている。
このような濾液配管構造において濾過膜モジュールの個別濾液量を測定する場合は、例えば全ての濾過膜モジュールの濾液配管２に設けられた手動弁２ａを開き全体濾液量測定用流量計１１を用いて測定した全体濾液量の値と個別濾液量を測定しようとする濾過膜モジュールの濾液配管２に設けられた手動弁２ａのみを閉め全体濾液量測定用流量計１１を用いて測定した全体濾液量の値の差を、該手動弁２ａを閉めた濾過膜モジュールの個別濾液量としていた。
或いは、個別濾液量を測定しようとする濾過膜モジュールの濾液配管２に設けられた手動弁２ａのみを開きその他の濾過膜モジュールの濾液配管２に設けられた手動弁２ａを閉め全体濾液量測定用流量計１１で測定した値を、該手動弁２ａを開いた濾過膜モジュールの個別濾液量としていた。
【０００４】
【非特許文献１】
清水博、西村正人監修「最新の膜処理技術とその応用」（株）フジ・テクノシステム出版、１９８４年８月１日、ｐ１４９、図−２
【０００５】
【発明が解決しようとする課題】
しかしながら、前述の操作及び図３に示した濾液配管構造で濾過膜モジュールの個別濾液量を測定すると、面積式の全体濾液量測定用流量計１１では測定目盛り幅や測定目盛り範囲により濾過膜モジュールの個別濾液量が正確に測定できないという問題があった。例えば濾液量の差が全体濾液量測定用流量計１１の最小目盛り幅より小さいときには濾液量の差を精度良く読み取ることが難しいという問題や濾過膜モジュールの個別濾液量が全体濾液量測定用流量計１１の測定目盛り範囲の最小値以下の場合は濾過膜モジュールの個別濾液量が測定できないという問題があった。
【０００６】
また、全体濾液量測定用流量計を用いて個別濾液量を正確に測定するには例えば全体濾液測定用流量計を電磁式流量計等の電気的な信号を用いた精度の高い流量計に変更する必要があった。一般的に前記電磁式流量計等は面積式流量計に比べ高価であり、また、前記電磁式流量計等に変更した場合は接続する電気配線や構成する電気部品の点数が多くなる。従って前記電磁式流量計等とそれを構成する電気部品を購入する費用や装置製作に係る工数が増大するという問題があった。
【０００７】
本発明は、上記課題を解決するためになされたものであり、個別濾液量を測定する濾過膜モジュールのみの濾液を流す個別濾液量測定用集合管を設け、夫々の濾過膜モジュールの濾液配管から分岐させた新たな濾液配管を前記個別濾液量測定用集合管に接続した構造とする、或いは夫々の濾過膜モジュールの濾液配管を直に前記個別濾液量測定用集合配管に接続した構造とすることで、濾過膜モジュールの個別濾液量を測定する場合は個別濾液量を測定する濾過膜モジュールの濾液配管に設けられた手動弁を操作し該濾過膜モジュールのみの濾液を前記個別濾液量測定用集合管に流すことができ、全体濾液量測定用流量計の測定目盛り幅や測定目盛り範囲に関係なく、また、全体濾液量測定用流量計を高価な電磁流量計等に変更し電気配線や構成する電気部品の点数を増加させ、構成機器の購入費用や装置製作に係る工数を増大させることなく濾過膜モジュールの個別濾液量の正確な測定が可能な濾液配管構造を提供することを目的とする。
【０００８】
【課題を解決するための手段】
本発明者は前記目的を達成するため新規な濾過膜モジュールの濾液配管構造を見出し、本発明をなすに至った。即ち、本発明は、１）２以上に配列された濾過膜モジュールの濾液配管が、濾過膜モジュールの濾液出口から濾液集合管に至る前に備わる弁までの間で分岐しており、その分岐した配管は弁を介して個別濾液量測定用集合管に接続されていることを特徴とする濾過膜モジュールの濾液配管構造、２）２以上に配列された濾過膜モジュールでかつ濾液出口を２ヶ所有する濾過膜モジュールの各々の濾液出口の濾液配管において、一方は濾液出口から弁を介して濾液集合管に接続されており、もう一方は濾液出口から弁を介して個別濾液量測定用集合管に接続されていることを特徴とする濾過膜モジュールの濾液配管構造である。
【０００９】
本発明における濾過膜モジュールとは、後述する濾過膜をハウジングに収めた構造を有しており、該ハウジングは原液を導入する原液入口と原液を排出する原液出口を夫々１ヶ所有し、濾液出口は１ヶ所、或いは２ヶ所有している。濾過膜は、中空糸状の限外濾過膜、或いは精密濾過膜等を用いることができ特に限定されない。本発明の２以上に配列された濾過膜モジュールとは、上記濾過膜モジュールを使用した濾過装置において、２基以上の濾過膜モジュールが向きを揃えて規則的に配置され配管に接続されている状態のことである。また本発明で用いる弁とは、配管に接続することで配管中の流体を任意で通液および遮断できる機能を有した機器で、手動操作により流体の通液および遮断の操作が可能な弁としては例えば手動弁がある。
【００１０】
本発明によれば、濾過膜モジュールの個別濾液量を測定する場合は個別濾液量を測定する濾過膜モジュールの濾液配管に設けられた手動弁を操作し該濾過膜モジュールのみの濾液を個別濾液量測定用集合管に流して個別濾液量を測定することができるため、全体濾液量測定用流量計の測定目盛り幅や測定目盛り範囲に関係なく、また、全体濾液量測定用流量計を電磁流量計等に変更し電気配線や構成する電気部品の点数を増加させ、構成機器の購入費用や装置製作に係る工数を増大させることなく濾過膜モジュールの個別濾液量の正確な測定ができる。
また、個別濾液量測定用集合管は濾過膜モジュールの個別濾液量を測定した際の該濾過膜モジュールの個別濾液が濾液タンクに導かれ貯蔵されるように接続すると濾液の損失を防ぐことができるので好ましい。
【００１１】
【発明の実施の形態】
図により本発明に係る濾過膜モジュールの配管構造の一実施形態を具体的に説明する。図１及び図２は本発明に係る濾過膜モジュールの配管構造の例を示す模式図である。
本発明に係る濾過膜モジュールの濾液配管構造は、例えば、電着塗料や電着塗装後の純水による洗浄排水（以下、電着塗料の純水洗水と称す）等を原液とし、その原液を循環しながら濾過を行うクロスフロー型の精密濾過装置或いは限外濾過装置において、前記濾過装置が殆ど停止することなく運転されており、また前記濾過装置に濾過膜モジュールを洗浄するための機能が備わっておらず、更に前記濾過装置に装着されている２以上の濾過膜モジュールの交換時期が夫々異なり、夫々の濾過膜モジュールの交換時期を判断するために個別濾液量の測定が必要な場合に有用なものである。
本発明を実施例に基づいて説明する。
【００１２】
【実施例１】
図１のように、限外濾過膜モジュール（旭化成株式会社製、限外濾過膜モジュール、ＥＣＳ−３０１０）１を３０本並べて濾過装置に設置した。各々の濾過膜モジュール１は一方の濾液出口から濾液集合管３に至る濾液配管２に備わる手動弁２ａまでの間で分岐して、その分岐した濾液配管４は手動弁４ａを介して個別濾液量測定用集合管９に接続した。各々の濾過膜モジュール１のもう一方の濾液出口は封止板により封じた。
【００１３】
そして、図示しない循環ポンプにより原液となる電着塗料の純水洗水を原液供給集合管５に接続した原液配管６を介して各濾過膜モジュール１へ供給し、濾過膜モジュール１内の中空糸状膜により濾過した。濾液は濾液配管２及び手動弁２ａを介して濾液集合管３へ流し、全体濾液量測定用流量計（流体工業株式会社製、面積式流量計、ＧＴＦ−２、測定目盛り幅５リットル／分、測定目盛り範囲２５〜２５０リットル／分）１１を介して濾液タンク１２に貯蔵した。
【００１４】
一方、原液配管６を介して濾過膜モジュール１に供給された電着塗料の純水洗水の一部は循環戻り液として濾過膜モジュール１の中空糸状膜の内側を流通して原液戻り配管７を介して原液戻り集合管８へ流れ、図示しない循環ポンプまたは原液タンクへ戻るようにした。
【００１５】
濾過膜モジュールの個別濾液量を測定する場合は、個別濾液量を測定する濾過膜モジュール１の濾液出口から濾液集合管３に至る濾液配管２に備わる手動弁２ａを閉め、濾液配管２が濾液集合管３に至る前に備わる手動弁２ａまでの間で分岐した濾液配管４と個別濾液量測定用集合管９に至る前に備わる手動弁４ａを開け、個別濾液量測定用集合管９及び個別濾液量測定用流量計（流体工業株式会社製、面積式流量計、ＧＤＦ−２、測定目盛り幅１リットル／分、測定目盛り範囲２〜２０リットル／分）１０に個別濾液量を測定する濾過膜モジュール１のみの濾液を流して個別濾液量を測定した。前述の個別濾液量測定用集合管９は個別濾液量測定用流量計１０を介して濾液タンク１２に接続されており、前記濾過膜モジュール１の個別濾液は個別濾液量測定用集合管９及び個別濾液量測定用流量計１０を流れて濾液タンク１２に導かれ貯蔵された。同様の操作を各々の濾過膜モジュールに対して実施し、５本の濾過膜モジュールの個別濾液量を測定した。
【００１６】
【実施例２】
図２のように、濾液出口を各々に２ヶ所有する限外濾過膜モジュール（旭化成株式会社製、限外濾過膜モジュール、ＥＣＳ−３０１０）１を３０本並べて濾過装置に設置した。各々の濾過膜モジュール１の濾液出口において、一方は濾液出口からの濾液配管２を手動弁２ａを介して濾液集合管３に接続し、もう一方は濾液出口からの濾液配管１３を手動弁１３ａを介して個別濾液量測定用集合管９に接続した。
【００１７】
そして、図示しない循環ポンプにより実施例１と同様の原液を原液供給集合管５に接続した原液配管６を介して各濾過膜モジュール１へ供給し、濾過膜モジュール１内の中空糸状膜により濾過した。濾液は濾液配管２及び手動弁２ａを介して濾液集合管３へ流し、全体濾液量測定用流量計（実施例１と同様の流量計）１１を介して濾液タンク１２に貯蔵した。
一方、原液配管６を介して濾過膜モジュール１に供給された実施例１と同様の原液の一部は循環戻り液として濾過膜モジュール１の中空糸状膜の内側を流通して原液戻り配管７を介して原液戻り集合管８へ流れ、図示しない循環ポンプまたは原液タンクへ戻るようにした。
【００１８】
濾過膜モジュールの個別濾液量を測定する場合は、個別濾液量を測定する濾過膜モジュール１の一方の濾液出口から濾液集合管３に至る濾液配管２に備わる手動弁２ａを閉め、濾過膜モジュール１のもう一方の濾液出口からの個別濾液量測定用集合管９に至る濾液配管１３に備わる手動弁１３ａを開け、個別濾液量測定用集合管９及び個別濾液量測定用流量計（実施例１と同様の流量計）１０に個別濾液量を測定する濾過膜モジュール１のみの濾液を流して個別濾液量を測定した。前述の個別濾液量測定用集合管９は個別濾液量測定用流量計１０を介して濾液タンク１２に接続されており、前記濾過膜モジュール１の個別濾液は個別濾液量測定用集合管９及び個別濾液量測定用流量計１０を流れて濾液タンク１２に導かれ貯蔵された。同様の操作を各々の濾過膜モジュールに対して実施し、５本の濾過膜モジュールの個別濾液量を測定した。
【００１９】
【発明の効果】
本発明は、個別濾液量を測定する濾過膜モジュールのみの濾液を流す個別濾液量測定用集合管を設け、夫々の濾過膜モジュールの濾液配管から分岐させた新たな濾液配管を弁を介して前記個別濾液量測定用集合管に接続した構造とする、或いは夫々の濾過膜モジュールの濾液配管を弁を介して前記個別濾液量測定用集合配管に接続した構造とすることで、濾過膜モジュールの個別濾液量を測定する場合は個別濾液量を測定する濾過膜モジュールのみの濾液を濾液配管に設けられた弁を操作し該濾過膜モジュールのみの濾液を前記個別濾液量測定用集合管に流すことができ、全体濾液量測定用流量計の測定目盛り幅や測定目盛り範囲に関係なく、また、全体濾液量測定用流量計を高価な電磁流量計等に変更し電気配線や構成する電気部品の点数を増加させ、構成機器の購入費用や装置製作に係る工数を増大させることなく濾過膜モジュールの個別濾液量の正確な測定が可能な濾液配管構造を提供することができる。
【図面の簡単な説明】
【図１】本発明に係る濾過膜モジュールの配管構造の１例を示す模式図である。
【図２】本発明に係る濾過膜モジュールの配管構造の１例を示す模式図である。
【図３】従来例を説明する模式図である。
【符号の説明】
１・・・濾過膜モジュール
２・・・濾液配管
２ａ・・・手動弁
３・・・濾液集合管
４・・・濾液配管
４ａ・・・手動弁
５・・・原液供給集合管
６・・・原液配管
７・・・原液戻り配管
８・・・原液戻り集合管
９・・・個別濾液量測定用集合管
１０・・・個別濾液量測定用流量計
１１・・・全体濾液量測定用流量計
１２・・・濾液タンク
１３・・・濾液配管
１３ａ・・・手動弁[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a filtrate piping structure of a filtration membrane module which is effective for measuring the amount of individual filtrate of two or more filtration membrane modules arranged in a filtration device.
[0002]
[Prior art]
The amount of filtrate of two or more filtration membrane modules arranged in the filtration device is periodically measured, and the filtration membrane module having a decreased filtrate amount is replaced.
A description will be given of a filtrate piping structure of a conventional filtration membrane module with reference to FIG. In FIG. 3, a filtrate pipe 2 of the filtration membrane module 1 is connected to a filtrate collecting pipe 3 via a manual valve 2a, and the filtrate collecting pipe 3 is connected to a filtrate tank 12 via a flow meter 11 for measuring the total amount of filtrate. (For example, see Non-Patent Document 1).
[0003]
The flowmeter 11 for measuring the total amount of filtrate is usually provided in the filtrate collecting pipe, and an area type flowmeter capable of measuring the flow rate only by passing the liquid is used.
When measuring the individual filtrate amount of the filtration membrane module in such a filtrate piping structure, for example, the manual valve 2a provided in the filtrate piping 2 of all the filtration membrane modules is opened, and the flow meter 11 for measuring the total filtrate amount is used. Only the manual valve 2a provided in the filtrate pipe 2 of the filtration membrane module for which the value of the measured total filtrate amount and the individual filtrate amount are to be measured is closed, and the total filtrate amount measured using the total filtrate amount measurement flow meter 11 is closed. The difference between the values was defined as the individual filtrate amount of the filtration membrane module with the manual valve 2a closed.
Alternatively, only the manual valve 2a provided in the filtrate pipe 2 of the filtration membrane module whose individual filtrate volume is to be measured is opened, and the manual valve 2a provided in the filtrate pipe 2 of the other filtration membrane module is closed to measure the total filtrate volume. The value measured by the flow meter 11 was used as the individual filtrate amount of the filtration membrane module with the manual valve 2a opened.
[0004]
[Non-patent document 1]
Hiroshi Shimizu, Masato Nishimura, "Latest Membrane Processing Technology and Its Applications", Fuji Techno System Publishing Co., Ltd., August 1, 1984, p.149, Figure-2
[0005]
[Problems to be solved by the invention]
However, when the individual filtrate amount of the filtration membrane module is measured by the above-described operation and the filtrate piping structure shown in FIG. 3, the flow rate meter 11 for measuring the total filtrate amount of the area type is determined by the measurement scale width and the measurement scale range. There was a problem that the amount of individual filtrate could not be measured accurately. For example, when the difference in the filtrate volume is smaller than the minimum scale width of the flow meter 11 for measuring the total filtrate volume, it is difficult to accurately read the difference in the filtrate volume. When the value is below the minimum value of the measurement scale range of 11, there is a problem that the individual filtrate amount of the filtration membrane module cannot be measured.
[0006]
In addition, in order to accurately measure the amount of individual filtrate using the flow meter for measuring the total amount of filtrate, for example, change the flow meter for measuring the total filtrate to a high-precision flow meter using an electrical signal such as an electromagnetic flow meter. I needed to. In general, the electromagnetic flow meter or the like is more expensive than the area flow meter, and when the electromagnetic flow meter is changed to the electromagnetic flow meter or the like, the number of electric wires to be connected and the number of electric components to be connected increase. Therefore, there has been a problem that the cost of purchasing the electromagnetic flow meter and the like and the electric components constituting the same and the number of steps required for manufacturing the device increase.
[0007]
The present invention has been made in order to solve the above-mentioned problems, and provided an individual filtrate amount measurement collecting pipe through which a filtrate of only a filtration membrane module for measuring an individual filtrate amount is provided, and from a filtrate pipe of each filtration membrane module. A structure in which a new branched filtrate pipe is connected to the collecting pipe for measuring an individual filtrate amount, or a structure in which a filtrate pipe of each filtration membrane module is directly connected to the collecting pipe for measuring an individual filtrate amount. Then, when measuring the individual filtrate amount of the filtration membrane module, operate the manual valve provided in the filtrate pipe of the filtration membrane module for measuring the individual filtrate amount, and collect the filtrate of only the filtration membrane module into the individual filtrate amount measurement assembly. It can be flowed through a pipe, regardless of the measurement scale width or measurement scale range of the flow meter for measuring the total amount of filtrate, and changing the flow meter for measuring the total filtrate amount to an expensive electromagnetic flow meter, etc. It is an object of the present invention to provide a filtrate piping structure capable of accurately measuring the amount of individual filtrate of a filtration membrane module without increasing the number of electrical components to be formed and increasing the purchase cost of component devices and the man-hours involved in manufacturing the device. I do.
[0008]
[Means for Solving the Problems]
The present inventors have found a filtrate piping structure of a novel filtration membrane module to achieve the above object, and have accomplished the present invention. That is, in the present invention, 1) the filtrate piping of the two or more arranged filtration membrane modules is branched from the filtrate outlet of the filtration membrane module to a valve provided before reaching the filtrate collecting pipe, and the branch is made. The pipe is connected to the collecting pipe for measuring the amount of individual filtrate via a valve. 2) The filter membrane module has two or more filtrate membrane modules and has two filtrate outlets. In the filtrate pipe at each filtrate outlet of the filtration membrane module, one is connected from the filtrate outlet to a filtrate collecting pipe via a valve, and the other is connected from the filtrate outlet to a collecting pipe for individual filtrate amount measurement via a valve. It is a filtrate piping structure of a filtration membrane module characterized by being carried out.
[0009]
The filtration membrane module according to the present invention has a structure in which a filtration membrane described later is housed in a housing, and the housing has one stock solution inlet for introducing stock solution and one stock solution outlet for discharging stock solution, and the filtrate outlet. Owns one or two locations. The filtration membrane may be a hollow fiber ultrafiltration membrane or a microfiltration membrane, and is not particularly limited. The two or more filtration membrane modules of the present invention are defined as a state in which two or more filtration membrane modules are regularly arranged in the same direction and connected to a pipe in a filtration device using the filtration membrane module. That is. Further, the valve used in the present invention is a device having a function of arbitrarily passing and shutting off the fluid in the pipe by being connected to the pipe, and is a valve that can be operated to pass and shut off the fluid by manual operation. For example, there is a manual valve.
[0010]
According to the present invention, when measuring the individual filtrate amount of the filtration membrane module, the manual valve provided in the filtrate pipe of the filtration membrane module for measuring the individual filtrate amount is operated to separate the filtrate of the filtration membrane module only from the individual filtrate amount. Since the amount of individual filtrate can be measured by flowing through the collecting pipe for measurement, regardless of the measurement scale width and measurement scale range of the flowmeter for measuring the total filtrate, the flowmeter for measuring the total filtrate can be replaced with the electromagnetic flowmeter. It is possible to accurately measure the amount of the individual filtrate of the filtration membrane module without increasing the number of electric wirings and the electric components to be configured, and increasing the purchase cost of the components and the man-hours related to the production of the device.
In addition, the collecting pipe for measuring the amount of individual filtrate can prevent loss of filtrate by connecting the individual filtrate of the filtration membrane module to the filtrate tank when the individual filtrate amount of the filtration membrane module is measured so as to be stored. It is preferred.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment of the piping structure of the filtration membrane module according to the present invention will be specifically described with reference to the drawings. 1 and 2 are schematic views showing examples of the piping structure of the filtration membrane module according to the present invention.
The filtrate piping structure of the filtration membrane module according to the present invention is, for example, a washing solution (hereinafter, referred to as a pure water washing of the electrodeposition paint) or the like by an electrodeposition paint or pure water after the electrodeposition coating, and the stock solution is used. In a cross-flow type microfiltration device or ultrafiltration device that performs filtration while circulating, the filtration device is operated without stopping almost, and the filtration device has a function for washing a filtration membrane module. And the replacement time of two or more filtration membrane modules attached to the filtration device is different from each other, which is useful when it is necessary to measure the amount of individual filtrate in order to judge the replacement time of each filtration membrane module. It is something.
The present invention will be described based on examples.
[0012]
Embodiment 1
As shown in FIG. 1, 30 ultrafiltration membrane modules (manufactured by Asahi Kasei Corporation, ultrafiltration membrane modules, ECS-3010) were arranged in a row of 30 pieces and installed in a filtration device. Each filtration membrane module 1 branches from one filtrate outlet to a manual valve 2a provided in a filtrate pipe 2 extending to a filtrate collecting pipe 3, and the branched filtrate pipes 4 are individually filtrated through a manual valve 4a. It was connected to the collecting
[0013]
Then, pure water washing of the electrodeposition paint as a stock solution is supplied to each filtration membrane module 1 through a stock solution pipe 6 connected to the stock solution supply pipe 5 by a circulation pump (not shown), and the hollow fiber membrane in the filtration membrane module 1 is supplied. By filtration. The filtrate flows into the filtrate collecting pipe 3 via the filtrate pipe 2 and the manual valve 2a, and is used to measure the total filtrate amount (manufactured by Fluid Industries Co., Ltd., area type flow meter, GTF-2, measurement scale width 5 L / min, (Measurement scale range 25 to 250 l / min) 11 and stored in the filtrate tank 12.
[0014]
On the other hand, a part of the pure water washing of the electrodeposition paint supplied to the filtration membrane module 1 via the stock solution pipe 6 circulates through the inside of the hollow fiber membrane of the filtration membrane module 1 as a circulating return solution and passes through the stock solution return pipe 7. The liquid then flows to the undiluted liquid return collecting pipe 8 and returns to a circulating pump or undiluted liquid tank (not shown).
[0015]
When measuring the individual filtrate volume of the filtration membrane module, the manual valve 2a provided in the filtrate pipe 2 from the filtrate outlet of the filtration membrane module 1 for measuring the individual filtrate volume to the filtrate collecting pipe 3 is closed, and the filtrate pipe 2 is collected. The filtrate pipe 4 branched to the manual valve 2a provided before reaching the pipe 3 and the manual valve 4a provided before reaching the individual filtrate amount measuring collecting
[0016]
Embodiment 2
As shown in FIG. 2, 30 ultrafiltration membrane modules (manufactured by Asahi Kasei Corporation, ultrafiltration membrane modules, ECS-3010) each having two filtrate outlets were arranged in a filtration device. At the filtrate outlet of each filtration membrane module 1, one connects the filtrate pipe 2 from the filtrate outlet to the filtrate collecting pipe 3 via the manual valve 2a, and the other connects the filtrate pipe 13 from the filtrate outlet to the manual valve 13a. The individual filtrate was connected to the collecting
[0017]
Then, the same undiluted solution as in Example 1 was supplied to each filtration membrane module 1 through a undiluted solution pipe 6 connected to the undiluted solution supply collecting pipe 5 by a circulation pump (not shown), and was filtered by the hollow fiber membrane in the filtration membrane module 1. . The filtrate was allowed to flow into the filtrate collecting pipe 3 via the filtrate pipe 2 and the manual valve 2a, and stored in the filtrate tank 12 via the flowmeter 11 for measuring the total amount of filtrate (the same flowmeter as in Example 1).
On the other hand, a part of the stock solution similar to that of Example 1 supplied to the filtration membrane module 1 via the stock solution pipe 6 flows through the inside of the hollow fiber membrane of the filtration membrane module 1 as a circulating return solution and passes through the stock solution return pipe 7. The liquid then flows to the undiluted liquid return collecting pipe 8 and returns to a circulating pump or undiluted liquid tank (not shown).
[0018]
When measuring the individual filtrate volume of the filtration membrane module, the manual valve 2a provided in the filtrate pipe 2 from one filtrate outlet to the filtrate collecting pipe 3 of the filtration membrane module 1 for measuring the individual filtrate volume is closed, and the filtration membrane module 1 is measured. The manual valve 13a provided in the filtrate pipe 13 extending from the other filtrate outlet to the individual filtrate amount measuring collecting
[0019]
【The invention's effect】
The present invention provides an individual filtrate amount measuring collecting pipe through which the filtrate of only the filtration membrane module for measuring the individual filtrate amount flows, and a new filtrate pipe branched from the filtrate pipe of each filtration membrane module through a valve. Each of the filtration membrane modules is connected individually to the collection pipe for measuring the amount of filtrate, or the filtrate pipe of each filtration membrane module is connected to the collection pipe for measuring the individual filtrate amount via a valve, so that the individual filtration membrane modules can be individually connected. When measuring the amount of filtrate, the filtrate of only the filtration membrane module for measuring the amount of individual filtrate can be supplied to the collecting pipe for measuring the amount of individual filtrate by operating a valve provided in the filtrate pipe by operating the valve provided on the filtrate pipe. It can be used regardless of the measurement scale width and measurement scale range of the flow meter for measuring the total amount of filtrate. Increases, it is possible to provide an accurate measurement capable filtrate piping structure of the individual filtrate of the filtration membrane module without increasing the number of steps according to the purchase costs and device fabrication component devices.
[Brief description of the drawings]
FIG. 1 is a schematic view showing one example of a piping structure of a filtration membrane module according to the present invention.
FIG. 2 is a schematic view showing one example of a piping structure of a filtration membrane module according to the present invention.
FIG. 3 is a schematic diagram illustrating a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Filtration membrane module 2 ... Filtrate piping 2a ... Manual valve 3 ... Filtrate collecting pipe 4 ... Filtrate piping 4a ... Manual valve 5 ... Raw liquid supply collecting pipe 6 ... Undiluted liquid pipe 7 Undiluted liquid return pipe 8 Undiluted liquid
Claims (2)
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| JP2003108110A JP2004313852A (en) | 2003-04-11 | 2003-04-11 | Filtrate piping structure of filter membrane module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2015120111A (en) * | 2013-12-24 | 2015-07-02 | 日立造船株式会社 | Porous film evaluation device and porous film evaluation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2015120111A (en) * | 2013-12-24 | 2015-07-02 | 日立造船株式会社 | Porous film evaluation device and porous film evaluation method |
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