WO2018037436A1 - Filtre tubulaire - Google Patents

Filtre tubulaire Download PDF

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Publication number
WO2018037436A1
WO2018037436A1 PCT/JP2016/003905 JP2016003905W WO2018037436A1 WO 2018037436 A1 WO2018037436 A1 WO 2018037436A1 JP 2016003905 W JP2016003905 W JP 2016003905W WO 2018037436 A1 WO2018037436 A1 WO 2018037436A1
Authority
WO
WIPO (PCT)
Prior art keywords
string
nonwoven fabric
nonwoven
outer layer
filter
Prior art date
Application number
PCT/JP2016/003905
Other languages
English (en)
Japanese (ja)
Inventor
定信 松本
浩正 新野
Original Assignee
株式会社ロキテクノ
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 株式会社ロキテクノ filed Critical 株式会社ロキテクノ
Priority to CN201680088570.8A priority Critical patent/CN109641164B/zh
Priority to JP2018535923A priority patent/JP6653762B2/ja
Priority to PCT/JP2016/003905 priority patent/WO2018037436A1/fr
Priority to KR1020197007960A priority patent/KR102316370B1/ko
Priority to TW106128935A priority patent/TWI753937B/zh
Publication of WO2018037436A1 publication Critical patent/WO2018037436A1/fr

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres

Definitions

  • This invention relates to a cylindrical filter.
  • the filter captures impurities by flowing a fluid containing impurities to be filtered through a fine filter.
  • Various materials and structures can be considered for the filter member, and a tubular filter having a structure in which a nonwoven fabric is wound is known.
  • the cylindrical filter has a structure in which a material such as a nonwoven fabric is wound around the flow path core.
  • the trapping performance of impurities in a fluid containing impurities to be filtered is determined by the size of the planned impurity particles and the size of the eyes of the filter member.
  • the impurities are trapped.
  • the filter member is clogged and obstructs the flow of the fluid containing the impurities. If the flow of the fluid containing impurities is hindered, the impurities cannot be captured. For this reason, the high trapping performance of impurities and the long-term maintenance of the performance are generally contradictory. Therefore, the target filter performance is high impurity trapping performance and long-term maintenance of the performance.
  • a tubular filter having an inner layer of a nonwoven fabric disposed around a flow path core and an outer layer formed by winding a cord-like nonwoven fabric on the inner layer, the cord-like nonwoven fabric, A non-woven fabric first non-woven fabric string made of one fiber diameter and a second non-woven fabric string made of a fiber diameter larger than the one fiber diameter are formed to overlap, and the outer layer is in contact with adjacent ones.
  • the problem is solved by a cylindrical filter formed by being wound so that the first nonwoven fabric cords do not contact each other.
  • FIG. 2 is a cross-sectional view of the string-like nonwoven fabric constituting the outer layer of the filter of the present invention, taken along the section 2-2 in FIG. 1.
  • FIG. 1 shows a cylindrical filter 1.
  • FIG. 2 is a cross-section of the cord-like nonwoven fabric 3 constituting the outer layer of the filter in the section 2-2 of FIG. 1, and particularly shows the cord-like nonwoven fabric 3 at the place where the cord-like nonwoven fabric 3 overlaps.
  • the flow path core 10 is a cylindrical core member whose inside forms a pipeline.
  • the flow path core 10 has a through-hole such as a hole in its peripheral portion, and the flow inside and outside the flow path core 10 is formed through the peripheral portion.
  • An inner layer 11 is formed around the flow path core 10.
  • the inner layer 11 is constituted by a first nonwoven fabric string 21 wound around the flow path core 10.
  • the inner layer 11 is formed by winding only the first nonwoven fabric string 21.
  • An outer layer 12 is formed on the outer periphery of the inner layer 11.
  • the outer layer 12 is formed by a string-like nonwoven fabric 3 wound around the outer periphery of the inner layer 11.
  • the string-like nonwoven fabric 3 is formed as a string-like nonwoven fabric.
  • the string-like non-woven fabric 31 and the string-like non-woven fabric 32 overlap each other at the overlapping portion around which the string-like non-woven fabric is wound.
  • the string-like nonwoven fabrics 31 and 32 are formed as a string-like nonwoven fabric 3 of a bundle of string-like nonwoven fabrics by superimposing the first nonwoven fabric strings 21a and 21b and the second nonwoven fabric strings 22a and 22b, respectively.
  • the fiber diameter of the second nonwoven fabric strings 22a and 22b is larger than the fiber diameter constituting the first nonwoven fabric strings 21a and 21b.
  • the first non-woven fabric strings 21a and 21b and the second non-woven fabric strings 22a and 22b are formed so that the width is folded around the longitudinal direction of the strings.
  • variety which folded the 1st nonwoven fabric string 21a, 21b is shorter than the width
  • the cross section of the 1st nonwoven fabric strings 21a and 21b and the 2nd nonwoven fabric strings 22a and 22b it has the shape where the 2nd nonwoven fabric strings 22a and 22b surround the 1st nonwoven fabric strings 21a and 21b.
  • the string-like nonwoven fabric 3 is wound on the inner layer 11 in a direction having an angle in the longitudinal direction of the flow path core 10, and the wound string-like nonwoven fabric 3 has a twill-like shape in the outer layer 12.
  • the string-like nonwoven fabric 3 is not drawn in the region A, but the string-like nonwoven fabric 3 is also wound here.
  • the string-like non-woven fabric 31 and the string-like non-woven fabric 32 do not contact the first non-woven fabric string 21a and the first non-woven fabric string 21b in the string-like non-woven fabric 31 and the string-like non-woven fabric 32 adjacent to each other in the radial direction of the filter.
  • the outer layer 12 is formed by being wound so that the first nonwoven fabric string 21a and the first nonwoven fabric string 21b do not contact each other in the string-shaped nonwoven fabric 31 and the string-shaped nonwoven fabric 32 that are in contact with each other.
  • the second non-woven string 22a and the second non-woven string 22b may or may not contact each other. Since the first nonwoven fabric strings 21a and 21b are in a cross section with the second nonwoven fabric strings 22a and 22b, the second nonwoven fabric strings 22a and 22b surround the first nonwoven fabric strings 21a and 21b. 21a and the 1st nonwoven fabric string 21b do not contact.
  • the first nonwoven fabric string 21a and the second nonwoven string. 22 a constitutes a bundle of string-like nonwoven fabrics
  • the second nonwoven fabric string 21 b and the second nonwoven fabric string 22 b constitutes a bundle of string-like nonwoven fabrics 32.
  • the first nonwoven string 21a, the second nonwoven string 22a, the first nonwoven string 21b, and the second nonwoven string 22b appear so that the string-shaped nonwoven fabric 3 is wound to form the outer layer 12.
  • the inner layer 11 functions as a time-stable layer that prevents the capture performance from deteriorating over time.
  • the first nonwoven string 21a, 21b functions as a main filter medium for capturing impurities
  • the second nonwoven string 22a, 22b functions as a preliminary filter medium for capturing impurities, and ensures the flow of fluid containing impurities.
  • the filter of the present invention a comparison result of a change in the capture performance with time will be described.
  • a liquid sample (stock solution) containing impurities is passed through the filter for filtration.
  • the filtered liquid is inspected to find the difference between the turbidity of the liquid before filtration and the turbidity of the liquid after filtration. Measure and calculate the capture efficiency.
  • the capture efficiency of an arbitrary liquid is expressed as follows.
  • Capture efficiency (%) ⁇ (liquid turbidity ⁇ liquid turbidity after filtration) / liquid turbidity ⁇ ⁇ 100
  • the initial capture efficiency means the capture efficiency measured and calculated immediately after the start of filtration (initial stage). That is, the supplemental efficiency means the proportion of turbidity (trapped particles) reduced by filtration. Therefore, high trapping efficiency means that the turbidity difference between “liquid turbidity” and “liquid turbidity after filtration” is large, which means that more particles have been captured. This means that the basic performance of the filter is high. If the trapping performance is high, the filter generally becomes clogged, which obstructs the flow of liquid. Therefore, the filter stability over time indicates how long the initial capture efficiency can be maintained.
  • Case 1 when it forms as outer layer 12 by winding only the 1st nonwoven fabric string 21a and 21b (case 1), and it is the composition of the present invention shown in Drawing 2, the 1st nonwoven fabric string 21a and the 2nd nonwoven fabric string 22a, the first nonwoven fabric string 21b, and the second nonwoven fabric string 22b are each formed as one bundle so that the first nonwoven fabric string 21a and the first nonwoven fabric string 21b are not in contact with each other (case 2).
  • Case 1 has an initial acquisition efficiency of 77% and a performance maintenance time of 48 minutes
  • Case 2 has an initial acquisition efficiency of 75% and a performance maintenance time of 56 minutes.
  • Become This shows that the effect of stability over time due to the presence of the flow path material that secures the flow of the fluid containing impurities is high as in the present invention.
  • the inner layer 11 wound with the nonwoven fabric is disposed outside the interior. Comparing with the case (case 4) in which the outer layer 12 around which the string-like nonwoven fabric 3 is wound is disposed (case 4), the initial capture efficiency in case 3 is 80% and the performance maintaining time is 17 minutes. It is 75 percent and its performance maintenance time is 56 minutes. Thus, it can be seen that the effect of the stability over time of the capture performance is high by arranging the inner layer 11 as in the present invention.
  • the first nonwoven fabric string 21a and the first nonwoven fabric string 21b are configured to contact each other (case 5), and the first nonwoven fabric string. 21a and the case where the first nonwoven fabric strings 21b are not in contact with each other (case 6), in case 5, the initial capture efficiency is 81% and the performance maintaining time is 42 minutes. Then, the initial capture efficiency is 75% and the performance maintenance time is 56 minutes.
  • the effect of the stability over time of capture performance is high by setting it as the structure which the 1st nonwoven fabric string 21a and the 1st nonwoven fabric string 21b do not contact like this invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtration Of Liquid (AREA)

Abstract

Un filtre tubulaire ayant une couche interne de tissu non tissé disposée autour d'un coeur de canal d'écoulement et une couche externe formée par enroulement d'un tissu non tissé de type chaîne sur la couche interne, le tissu non tissé de type chaîne étant formé par stratification d'une première chaîne de tissu non tissé d'un tissu non tissé fabriqué avec un premier diamètre de fibre sur une seconde chaîne de tissu non tissé fabriquée avec un diamètre de fibre plus épais que le premier diamètre de fibre, et la couche externe est formée par enroulement de telle sorte que les premières chaînes de tissu non tissé ne se touchent pas dans des tissus non tissés de type chaîne qui sont adjacents et qui se touchent. Par conséquent, il est possible d'atteindre simultanément la capacité de piéger des impuretés, etc. Et la stabilité dans le temps de celle-ci.
PCT/JP2016/003905 2016-08-26 2016-08-26 Filtre tubulaire WO2018037436A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201680088570.8A CN109641164B (zh) 2016-08-26 2016-08-26 筒状过滤器
JP2018535923A JP6653762B2 (ja) 2016-08-26 2016-08-26 筒状フィルタ
PCT/JP2016/003905 WO2018037436A1 (fr) 2016-08-26 2016-08-26 Filtre tubulaire
KR1020197007960A KR102316370B1 (ko) 2016-08-26 2016-08-26 통 형상 필터
TW106128935A TWI753937B (zh) 2016-08-26 2017-08-25 筒狀過濾器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/003905 WO2018037436A1 (fr) 2016-08-26 2016-08-26 Filtre tubulaire

Publications (1)

Publication Number Publication Date
WO2018037436A1 true WO2018037436A1 (fr) 2018-03-01

Family

ID=61245561

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/003905 WO2018037436A1 (fr) 2016-08-26 2016-08-26 Filtre tubulaire

Country Status (5)

Country Link
JP (1) JP6653762B2 (fr)
KR (1) KR102316370B1 (fr)
CN (1) CN109641164B (fr)
TW (1) TWI753937B (fr)
WO (1) WO2018037436A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021221027A1 (fr) * 2020-04-30 2021-11-04 株式会社ロキテクノ Élément filtrant pour suspension épaisse, cartouche filtrante, et récipient de filtration

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000057989A1 (fr) * 1999-03-30 2000-10-05 Chisso Corporation Cartouche filtrante

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GB950333A (en) * 1961-05-17 1964-02-26 Winslow Engineering And Mfg Co Improvements in filters and separators
JPH01115423A (ja) * 1987-10-30 1989-05-08 Takano:Kk セルロース・スパンボンド不織布を素材とする濾過体の製造方法
JPH052715U (ja) * 1991-06-28 1993-01-19 ダイワボウ・クリエイト株式会社 カートリツジフイルター
JPH0518614U (ja) * 1991-08-20 1993-03-09 ダイワボウ・クリエイト株式会社 カートリツジフイルター
US6283308B1 (en) * 1998-06-17 2001-09-04 Microban Products Company Bacteriostatic filter cartridge
US5868933A (en) * 1995-12-15 1999-02-09 Patrick; Gilbert Antimicrobial filter cartridge
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JP3861520B2 (ja) * 1999-07-22 2006-12-20 チッソ株式会社 筒状フィルター
JP2001054710A (ja) * 1999-08-18 2001-02-27 Chisso Corp フィルターカートリッジ
JP2001321622A (ja) * 2000-05-16 2001-11-20 Chisso Corp フィルターカートリッジ
JP2001300224A (ja) * 2000-04-26 2001-10-30 Chisso Corp フィルターカートリッジ
JP2002273128A (ja) * 2001-03-23 2002-09-24 Z Industries Co Ltd カートリッジフィルタ及びカートリッジフィルタ用コア
EP1386651B1 (fr) * 2001-04-05 2006-03-29 Daikin Industries, Ltd. procede d'elaboration de ce materiau filtrant
JP2005281895A (ja) * 2004-03-30 2005-10-13 Nisshinbo Ind Inc 吸着材の製造方法および吸着材
CN200970500Y (zh) * 2006-04-14 2007-11-07 童长淦 一种三段过滤滤芯
CN201350363Y (zh) * 2008-10-29 2009-11-25 银嘉科技股份有限公司 滤芯
JP5561473B2 (ja) * 2010-03-31 2014-07-30 栗田工業株式会社 濾過装置及び水処理装置
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Publication number Priority date Publication date Assignee Title
WO2000057989A1 (fr) * 1999-03-30 2000-10-05 Chisso Corporation Cartouche filtrante

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021221027A1 (fr) * 2020-04-30 2021-11-04 株式会社ロキテクノ Élément filtrant pour suspension épaisse, cartouche filtrante, et récipient de filtration

Also Published As

Publication number Publication date
KR20190039296A (ko) 2019-04-10
CN109641164A (zh) 2019-04-16
TW201819020A (zh) 2018-06-01
KR102316370B1 (ko) 2021-10-22
CN109641164B (zh) 2021-07-16
JPWO2018037436A1 (ja) 2019-06-20
TWI753937B (zh) 2022-02-01
JP6653762B2 (ja) 2020-02-26

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