WO2009151101A1 - Élément filtre, module de filtre, et dispositif de filtration - Google Patents

Élément filtre, module de filtre, et dispositif de filtration Download PDF

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Publication number
WO2009151101A1
WO2009151101A1 PCT/JP2009/060707 JP2009060707W WO2009151101A1 WO 2009151101 A1 WO2009151101 A1 WO 2009151101A1 JP 2009060707 W JP2009060707 W JP 2009060707W WO 2009151101 A1 WO2009151101 A1 WO 2009151101A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
cylindrical
strainer
filter element
filtration
Prior art date
Application number
PCT/JP2009/060707
Other languages
English (en)
Japanese (ja)
Inventor
敬道 井上
優子 高見
Original Assignee
株式会社クラレ
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
Application filed by 株式会社クラレ filed Critical 株式会社クラレ
Priority to JP2010516884A priority Critical patent/JP5399384B2/ja
Publication of WO2009151101A1 publication Critical patent/WO2009151101A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/114—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially

Definitions

  • the present invention relates to a filter module that not only reduces filter clogging and reduces the frequency of filter replacement in the filtration of various fluids, but also facilitates replacement work, and a filtration device that enables effective filtration operation. .
  • a sock-shaped or skirt-shaped filter cloth so as to cover the outer peripheral portion of the filtration membrane (for example, see Patent Document 1).
  • the above filter cloth is fixed at least to the upper end of the filter membrane element, covers at least the outer peripheral side surface of the filter membrane, can prevent large foreign matter from entering the filter membrane surface, and when the filter membrane is backwashed In addition, the filter cloth itself can be washed.
  • the strainer 1 and the filter 2 are housed in independent housings 3 and 4, respectively, and piping for connecting them is required, and a large installation space is required.
  • the filter cloth described in Patent Document 1 when used for a filtration process with a large flow rate of raw water, the filter cloth may stick to the filtration membrane and be integrated, or the filtration membrane may be clogged and filtered. There was no noticeable improvement in the degree of backwashing of the membrane and filter cloth, and further improvement in performance was desired.
  • an object of the present invention is to provide a new filter element and element module that solves these problems with a simple structure, and a filtration device using the same.
  • the cylindrical filter 5 having a hole with a hole diameter of 100 ⁇ m or less and having a radius r fixed at both ends and the outer periphery of the cylindrical filter 5 covers the periphery of the cylindrical filter 5 and is not fixed. It relates to a filter element 7 having a cylindrical strainer 6 having a radius R of not less than 300 ⁇ m and arranged in this manner.
  • the present invention is preferably a filter element 7 in which two or more cylindrical filters are arranged, and the distance between the centers of the cylindrical filters 5 is larger than 2R, smaller than 2 ⁇ (2R ⁇ r), etc.
  • the filter elements 7 are arranged at intervals.
  • the present invention relates to the above filter element in which the gap between the element plate 8 for fixing the cylindrical filter 5 of the filter element 7 and both ends of the cylindrical strainer 6 is equal to or smaller than the hole diameter of the cylindrical strainer 6.
  • the long axis direction of the cylindrical filter 5 is inclined with respect to the horizontal plane in the range of 20 ° to 70 °. It relates to the filter module.
  • the present invention relates to the filter module and a filtration device having means for changing the filtration flow rate or the flow direction of the target fluid when the target fluid is filtered.
  • a filter module and a filtration device that have a simple structure, have a small installation space, can perform fluid filtration for a long period of time, and can easily replace strainers and filters.
  • FIG. 2 is a schematic perspective view and a horizontal sectional view showing an example of the filter element according to the present invention.
  • the cylindrical filter of the present invention can be appropriately selected as long as it has a hole having a hole diameter of 100 ⁇ m or less and a cylinder having a radius r.
  • the material include various synthetic resins, for example, polyolefins such as polyethylene and polypropylene, polyesters, polyamides, celluloses, and metals, but polyolefins are preferable in view of the balance between lightness and rigidity.
  • the pore diameter refers to the nominal pore diameter.
  • the cylindrical strainer of the present invention can be appropriately selected as long as it has a hole having a hole diameter of 300 ⁇ m or more and a cylinder having a radius R.
  • the material include various synthetic resins, for example, polyolefins such as polyethylene and polypropylene, metals such as polyester, polyamide, and cellulose, but rigidity capable of maintaining a cylindrical shape even when the flow rate of raw water is large.
  • synthetic resins particularly polyolefins, are suitable.
  • the cylindrical strainer is installed on the outer periphery of the cylindrical filter so as to cover the periphery of the cylindrical filter, and further needs to be arranged so as not to be fixed, so that R> r between R and r. There is a relationship.
  • the cylindrical filter 5 is fixed to the upper and lower element plates 8, but the cylindrical strainer 6 is mounted without being fixed to the outer peripheral portion of the cylindrical filter.
  • the gap between the element plate 8 that fixes the cylindrical filter 5 of the filter element 7 and both ends of the cylindrical strainer 6 is preferably equal to or smaller than the hole diameter of the cylindrical strainer 6.
  • the cylindrical strainer 6 having the above-described configuration can freely move in a circle having a radius of 2Rr from the center of the element as well as rotating.
  • the cylindrical strainer used in the present invention is restricted in movement by the cylindrical filter, the cylindrical strainer and the cylindrical filter are in contact with each other only at a very small part of the surface area of the cylindrical strainer.
  • the strainer and the cylindrical filter are prevented from sticking to each other.
  • the cylindrical strainer can move within a circle having a radius of 2Rr by the flow of the fluid to be filtered.
  • the cylindrical strainer moves in this manner, it collides with the wall surface of the housing that exists between the cylindrical strainer and the cylindrical filter and between the cylindrical strainer and the outer periphery of the cylindrical strainer, and peels off large foreign matter adhering to the cylindrical strainer. It becomes possible.
  • the filter element of the present invention has an excellent effect of not only reducing clogging of the strainer and reducing the replacement frequency of the filter but also facilitating the replacement work.
  • FIG. 3 is a schematic perspective view and a horizontal sectional view showing an example of a filter element in which two or more cylindrical filters 5 are arranged in the filter element 7 according to the present invention.
  • FIG. 3 shows an example in which three filter elements are arranged, but the same applies to a case where more filter elements are arranged.
  • L is the distance between the centers of adjacent cylindrical filters.
  • FIG. 4 is a schematic perspective view showing an example of the filter module according to the present invention.
  • the housing 14 is provided with a pressure-resistant hatch 9 for opening and closing, and four nozzles of a fluid inlet 10, a fluid outlet 11, an air vent 12, and a drain 13.
  • the housing 14 can be installed on the floor surface with an inclination by the support 15, and it is preferable that the long axis direction of the cylindrical filter is preferably inclined at a range of 20 ° to 70 ° with respect to the horizontal plane. .
  • the long axis direction of the cylindrical filter is preferably inclined at a range of 20 ° to 70 ° with respect to the horizontal plane.
  • the pump power supply of the filtration device may be periodically turned ON / OFF, but the flow rate of the target fluid may be periodically changed by using an inverter. Further, by performing backflow cleaning, the replacement life of the cylindrical strainer or the cylindrical filter can be more effectively extended.
  • FIG. 5 is a flowchart showing an example of the filtration device according to the present invention.
  • FIG. 5 is an example of a flowchart of an apparatus in which two filter modules are arranged in parallel.
  • the pump 16, the filter modules 18, 19 and the automatic opening / closing valves 20 to 27 are arranged as shown in the figure.
  • Table 1 is a process chart showing an example of an operation process of the filtration device according to FIG.
  • the black circles in the table indicate that the pump is ON or the automatic open / close valve is open, and that no mark indicates that the pump is OFF or the automatic open / close valve is closed.
  • the filter When the backwashing is performed, the filter is filtered by one filter module 18 without stopping the pump, and the filtered fluid is introduced into the filtration side of the other filter module 19 to cause a backflow on the filtration surface.
  • the foreign matter adhering to the surface can be effectively peeled off and discharged.
  • FIG. 6 is a flowchart showing another example of the filtration device according to the present invention.
  • FIG. 6 is an example of a flowchart of an apparatus in which compressed air or nitrogen gas is introduced into the filter module and backwashing is performed from the filtration side.
  • the pump 16, the filter module 17, and the automatic opening / closing valves 28 to 33 are arranged as shown in the figure.
  • Table 2 is a process chart showing an example of an operation process of the filtration device according to FIG.
  • the black circles in the table indicate that the pump is ON or the automatic open / close valve is open, and that no mark indicates that the pump is OFF or the automatic open / close valve is closed.
  • the pump 16 In backwashing with compressed air or nitrogen gas, the pump 16 is stopped and compressed air or nitrogen gas is sent to the filtration side of the filter module 17 to effectively separate and discharge foreign matter adhering to the filter filtration surface, and the strainer moves such as vibration. By doing this, foreign matter on the strainer surface can also be efficiently peeled off and discharged.
  • the present invention is useful in various fluid filtration treatments. For example, if it is used as a pretreatment for microfiltration of hollow fiber membranes or RO membranes, the installation space can be omitted, and the downstream side of the product of the present invention. Can reduce the burden on the processing.
  • the occupied space in the machine room can be greatly reduced as an alternative to the hair collector and sand filter.
  • the installation space is small and microorganisms in the ballast water can be removed in advance. can do.
  • FIG. 2 is a schematic perspective view and a horizontal cross-sectional view showing an example of a filter element in which a plurality of filter elements according to the present invention are arranged.
  • FIG. 2 is a schematic perspective view and a horizontal cross-sectional view showing an example of a filter element in which a plurality of filter elements according to the present invention are arranged.
  • FIG. 2 is a schematic perspective view and a horizontal cross-sectional view showing an example of a filter element in which a plurality of filter elements according to the present invention are arranged.
  • FIG. 2 is a schematic perspective view and a horizontal cross-sectional view showing an example of a filter element in which a plurality of filter elements according to the present invention are arranged.
  • It is a schematic perspective view which shows an example of the filter module which concerns on this invention.
  • It is a flowchart figure which shows an example of the filtration apparatus which concerns on this invention.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

L'invention concerne un module de filtre par lequel il est possible de minimiser l'obturation d'un filtre se produisant lors de la filtration de divers fluides afin de réduire la fréquence de remplacement du filtre et de faciliter ledit remplacement. L'invention concerne également un dispositif de filtration capable d'une mise en oevre de filtration efficace. Selon l'invention, un élément filtre comprend un filtre tubulaire circulaire doté de trous qui ont un diamètre de 100 µm ou moins, lequel est fixé à des extrémités opposées de celui-ci, et ayant un rayon de R, l'élément filtre comprenant également une crépine tubulaire circulaire disposée sur la périphérie extérieure du filtre tubulaire circulaire de façon à couvrir celui-ci, laquelle est montée sans être fixée, dotée de trous ayant un diamètre de 300 µm ou plus, et ayant un rayon de R.
PCT/JP2009/060707 2008-06-11 2009-06-11 Élément filtre, module de filtre, et dispositif de filtration WO2009151101A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010516884A JP5399384B2 (ja) 2008-06-11 2009-06-11 フィルターエレメント、フィルターモジュールおよびろ過装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-153227 2008-06-11
JP2008153227 2008-06-11

Publications (1)

Publication Number Publication Date
WO2009151101A1 true WO2009151101A1 (fr) 2009-12-17

Family

ID=41416805

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Application Number Title Priority Date Filing Date
PCT/JP2009/060707 WO2009151101A1 (fr) 2008-06-11 2009-06-11 Élément filtre, module de filtre, et dispositif de filtration

Country Status (2)

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JP (1) JP5399384B2 (fr)
WO (1) WO2009151101A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104016500A (zh) * 2014-06-16 2014-09-03 芜湖市华泰实业有限公司 一种多级净水滤芯
JP2016185666A (ja) * 2015-03-27 2016-10-27 富士フィルター工業株式会社 リーフディスクフィルタ装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01164795U (fr) * 1988-05-10 1989-11-17
JPH09170188A (ja) * 1995-10-09 1997-06-30 Aikawa Iron Works Co Ltd 製紙用スクリーン装置及び製紙用スクリーン装置の運転方法
JPH10113513A (ja) * 1996-10-09 1998-05-06 Brother Ind Ltd 浄化装置
JP2000246021A (ja) * 1999-02-26 2000-09-12 Tadayoshi Nagaoka 濾過装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55121811A (en) * 1979-03-15 1980-09-19 Totoku Electric Co Ltd Filtration device
JPS63126510A (ja) * 1986-11-14 1988-05-30 Nkk Corp 溶液フイルタ
GB2202164B (en) * 1987-02-20 1991-04-03 Sartorius Gmbh Testing fluid filter apparatus
JPH07328334A (ja) * 1994-06-07 1995-12-19 Chisso Corp 複合濾過体
JPH11197416A (ja) * 1998-01-12 1999-07-27 Ishikawajima Shibaura Mach Co Ltd フィルターの取付構成
JP2003038916A (ja) * 2001-07-17 2003-02-12 Millipore Corp 交換可能なフィルターを有するフィルター要素及びフィルター装置
JP3084352U (ja) * 2001-07-26 2002-03-22 儒林 李 浄水用濾過体とその製造装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01164795U (fr) * 1988-05-10 1989-11-17
JPH09170188A (ja) * 1995-10-09 1997-06-30 Aikawa Iron Works Co Ltd 製紙用スクリーン装置及び製紙用スクリーン装置の運転方法
JPH10113513A (ja) * 1996-10-09 1998-05-06 Brother Ind Ltd 浄化装置
JP2000246021A (ja) * 1999-02-26 2000-09-12 Tadayoshi Nagaoka 濾過装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104016500A (zh) * 2014-06-16 2014-09-03 芜湖市华泰实业有限公司 一种多级净水滤芯
JP2016185666A (ja) * 2015-03-27 2016-10-27 富士フィルター工業株式会社 リーフディスクフィルタ装置

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Publication number Publication date
JPWO2009151101A1 (ja) 2011-11-17
JP5399384B2 (ja) 2014-01-29

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