WO2014119638A1 - Cartouche filtrante pour purificateur d'eau, et purificateur d'eau - Google Patents

Cartouche filtrante pour purificateur d'eau, et purificateur d'eau Download PDF

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Publication number
WO2014119638A1
WO2014119638A1 PCT/JP2014/052034 JP2014052034W WO2014119638A1 WO 2014119638 A1 WO2014119638 A1 WO 2014119638A1 JP 2014052034 W JP2014052034 W JP 2014052034W WO 2014119638 A1 WO2014119638 A1 WO 2014119638A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter medium
filter
lid
antibacterial
cylindrical container
Prior art date
Application number
PCT/JP2014/052034
Other languages
English (en)
Japanese (ja)
Inventor
高島孝輔
植松信機
磯部卓
Original Assignee
東レ株式会社
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 東レ株式会社 filed Critical 東レ株式会社
Priority to JP2014510585A priority Critical patent/JPWO2014119638A1/ja
Publication of WO2014119638A1 publication Critical patent/WO2014119638A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges

Definitions

  • the present invention relates to a filter cartridge for a water purifier for purifying tap water in a general household.
  • Filter cartridges for water purifiers used in general households are generally manufactured by combining a bottomed cylindrical container with an opening at one end and a lid so as to close the opening after storing the filter medium from the opening side. Is done.
  • a coupling method screw fastening, ultrasonic welding, and rotary welding are typically used.
  • the bottomed cylindrical container and the lid are coupled by an ultrasonic welding method.
  • the lid side of the filter medium part housed inside is liquid-tightly sealed to the lid via an O-ring.
  • the bottomed cylindrical container bottom part side of a filter medium part is mounted and supported by the bottomed cylindrical container inner wall structure.
  • the liquid-tight seal surface on the lid side may be exposed to the rotation accompanying the rotational welding and damage the liquid-tight seal surface.
  • an object of the present invention is a filter cartridge for a water purifier in which a filter medium is housed in a housing including a bottomed cylindrical container and a lid, and the bottomed cylindrical container and the lid are rotationally welded. It is an object of the present invention to provide a filter cartridge for a water purifier that does not impair the liquid-tight sealing performance even if they are coupled together.
  • a water purifier filter cartridge having a housing composed of a bottomed cylindrical container and a lid, and a filter medium part housed in the housing, wherein one end of the filter medium part is liquid-tight to the lid
  • the other end of the filter medium part is housed in the bottomed cylindrical container, and the rotation start torque around the filter medium part axial direction in the engagement of one end of the filter medium part is different from that of the other end of the filter medium part and the It is a filter cartridge for water purifiers characterized by being larger than the rotation starting torque around the filter medium portion axial direction between the bottomed cylindrical container.
  • the water purifier of the present invention has any one of the cartridges.
  • the present invention can achieve the following excellent effects by the above configuration. That is, With the configuration of (1) above, when the bottomed cylindrical container and the lid are rotationally welded to form the housing, the engaging portion between the filter medium part and the lid does not rotate with each other, and the filter medium is not attached to the bottomed cylindrical container. The part rotates. Thereby, the liquid-tight performance of the engaging part between the filter medium part and the lid is not impaired by the rotary welding.
  • FIG. 1 is a longitudinal sectional view of a filter cartridge 1 for a water purifier according to an embodiment of the present invention.
  • the filter cartridge 1 shown in FIG. 1 is a filter cartridge when a filter medium for adsorption filtration is used, but the filter cartridge can be a plurality of different types of filter medium stored inside.
  • a filter medium a nonwoven fabric, a resin molded body by melt blow, a hollow fiber membrane module for membrane filtration, or the like can be used.
  • the basic structure and configuration of the filter cartridge described below are common. Therefore, the structure and configuration of the filter cartridge 1 for adsorption filtration shown in FIG. 1 will be described.
  • the filter cartridge 1 has a housing 2 composed of a cylindrical container 4 with a bottom and a lid 3, and a filter medium portion 12 accommodated in the housing 2.
  • the filter medium part 12 refers to an internal structure composed of a filter medium 7 and a member that holds the filter medium 7 and allows water to pass therethrough.
  • the filter member 12 has a three-dimensional shape obtained by rotating a plane figure around an axis located in the same plane, that is, a rotating body, excluding its detailed structure.
  • the cylindrical container 4 and the lid 3 are liquid-tightly coupled.
  • rotational welding, ultrasonic welding, screw bonding, and the like are possible, but rotational welding is preferable from the viewpoint of ease of manufacture and bonding strength.
  • Rotational welding is an operation for performing a material welding process by frictional heat generated by rotation.
  • the lid 3 is provided with an inlet 10 and an outlet 11 as flow paths.
  • an outlet cap receiving portion 9 that is integrally formed as a part of the lid is provided near the center of the upper opening of the lid 3.
  • a part of the outer periphery of the outlet cap receiving part 9 is integrally connected to the inner surface of the upper opening of the lid 3, and the inside of the outlet cap receiving part 9 forms an outlet passage as a flow path.
  • An opening that communicates with the outlet passage and is provided in a part of the outer surface of the upper opening of the lid 3 is an outlet 11.
  • the inlet 10 is an annular portion excluding the outlet cap receiving portion 9 in the upper opening of the lid 3.
  • An outlet cap 5 is provided as an upper member of the filter medium portion 12, and the inside thereof forms a downstream flow path.
  • the outlet cap 5 is fitted into the outlet cap receiving portion 9 and is engaged and fixed in a liquid-tight manner.
  • one end of the filter medium part 12 is liquid-tightly engaged with and fixed to the lid 3.
  • Engagement / fixation of the outlet cap at one end of the filter medium part and the outlet cap receiving part may be performed by, for example, screw coupling instead of fitting, and the fixation may be further strengthened.
  • the seal member 14 is interposed in the engagement portion between the filter medium portion 12 and the lid 3, and the liquid-tight performance is ensured, but liquid-tightness can be achieved only by fitting without the seal member. If so, there is no problem.
  • the lower part which is the other end of the filter medium part 12
  • the concave portion 8 is engaged with the convex portion 6 at the bottom of the container at the bottom of the cylindrical container 4 in a rotatable state.
  • the relationship between the other end of the filter medium part 12 and the cylindrical container 4 is not the uneven engagement as described above, and the other end of the filter medium part 12 may be merely in contact with and held by the container bottom part. There may be a gap between the other end of 12 and the bottom of the container so that they are not in contact with each other. In short, it is only necessary that the other end of the filter medium portion 12 is accommodated in the cylindrical container 4.
  • the rotation start torque around the filter medium part 12 in the axial direction is the engagement of the concave part 8 at the lower part of the filter medium part with the convex part 6 at the bottom of the container (or the filter medium part).
  • the rotation start torque about the axial direction of the filter medium 12 in the engagement between the other end of the cylindrical container and the cylindrical container (set to be larger).
  • “Rotation start torque in engagement” means a torque required to start relative rotation of the engagement members against the static frictional force in engagement of one end of the filter medium portion 12.
  • the seal member 14 in FIG. 1 is an O-ring made of a rubber material such as EPDM, and its crushing margin is set near the upper limit of the normal mechanical design standard, and the engagement portion between the filter medium portion and the lid is set. It is preferable to increase the friction force. Further, the engagement portion between the concave portion 8 at the lower portion of the filter medium portion and the convex portion 6 at the bottom of the container is made smooth to reduce the friction coefficient, and the diameter of the engagement portion is equal to or less than the inner diameter of the outlet cap receiving portion 9. It is also preferable to make it. As the seal member, in addition to the O-ring, packings having various shapes such as a square cross section can be used.
  • the filter medium part 12 can be configured to be rotatable with respect to the cylindrical container 4.
  • the lid 3 and the filter medium part 12 do not move relatively at the time of rotational welding, and enables liquid-tight engagement (fitting) between them.
  • the seal member 14 and the engagement surface are not damaged, and the liquid tightness is not impaired.
  • the rotation start torque is measured using a torque meter or torque gauge (a torque meter or torque gauge capable of measuring a screw tightening torque or a container cap opening torque) that is generally commercially available. be able to.
  • a torque meter or torque gauge a torque meter or torque gauge capable of measuring a screw tightening torque or a container cap opening torque
  • Filter medium 7 is an adsorbent, and typically activated carbon is used.
  • the activated carbon may be any of granular, powdery, and fibrous shapes. Moreover, the thing of the form of the molded object in which those activated carbon was shape
  • molded may be sufficient. Moreover, ceramic type adsorbents such as zeolite can also be used.
  • the activated carbon 13 as the filter medium 7 is filled in a cylindrical filter medium storage container (can also be configured in a cylindrical shape).
  • the direction of the water flow path to the activated carbon is an axial direction that flows from a water flow hole provided in the bottom of the storage container (lower part of the filter medium 12) and flows out to the outlet cap 5.
  • the activated carbon portion as a filter medium includes a filter medium that elutes antibacterial components such as silver (or silver ions), copper (or copper ions), and zinc (or zinc ions) into tap water (that is, an antibacterial agent such as silver impregnated activated carbon. ) May be included.
  • the filter medium for example, a zeolite, an ion exchange resin, etc. which removes heavy metals which may be contained in tap water, such as lead.
  • the filter medium portion 12 for adsorption filtration may be an embodiment as shown in FIG.
  • the lid 3 and the filter medium portion 12 do not move relatively during the rotary welding of the cylindrical container 4 and the lid 3 as described above, and their liquid-tight engagement (fitting)
  • the structure which does not damage the sealing member and the engagement surface for enabling the combination is adopted.
  • the antibacterial agent 16 and the non-antibacterial adsorbent 15 are used for the filter medium of the filter cartridge 1 of the embodiment of FIG.
  • the first non-antibacterial adsorbent layer, the antibacterial agent layer, and the second non-antibacterial adsorbent layer are laminated and arranged in order from the upstream side of the water flow, which is a three-layer configuration.
  • the antibacterial agent 16 is a filter medium that elutes antibacterial components such as silver (or silver ions), copper (or copper ions), zinc (or zinc ions) into tap water.
  • Silver impregnated activated carbon can be used.
  • activated carbon without an antibacterial substance attached
  • the antibacterial agent of the antibacterial agent layer has the ability to elute antibacterial components into water by passing water, and the function and role of preventing bacterial contamination in the filter medium 1 and the outlet portion of the filter cartridge 1 by the eluted antibacterial components. have.
  • the weight of the antibacterial agent 16 (the weight of the antibacterial substance present in the antibacterial agent) is determined by a suitable value depending on the necessary amount (or period) of the continuous antibacterial effect. If the weight of the antibacterial agent 16 is small, the antibacterial component hardly elutes or the antibacterial component elutes from the adsorbent while the total amount of water passing is small.
  • the non-antibacterial adsorbent 15 disposed on the most downstream side is disposed in order to prevent the antibacterial component from being eluted more wastefully than the antibacterial agent 16 in the initial stage of water flow. That is, the antibacterial component eluted from the antibacterial agent 16 is once adsorbed by the non-antibacterial adsorbent 15 arranged on the most downstream side, so that the concentration of the antibacterial component in the downstream purified water is not unnecessarily increased.
  • the downstream side of the non-antibacterial adsorbent layer 15 That is, the antibacterial component is not eluted and does not exist in the purified water at the outlet of the filter cartridge.
  • the antibacterial component once adsorbed to the non-antibacterial adsorbent 15 in the most downstream layer once in the initial stage of water flow advances the water flow, the antibacterial substance in the antibacterial agent layer decreases, and the concentration of the antibacterial component eluted therefrom If it decreases, it will desorb from the non-antibacterial adsorbent 15 and will elute into the purified water to perform the antibacterial function, thereby contributing to the extension of the antibacterial life. Accordingly, the antibacterial component once adsorbed to the non-antibacterial adsorbent 15 in the most downstream layer at the initial stage of water flow is not used but effectively used.
  • the concentration of antibacterial components eluted in the purified water downstream of the non-antibacterial agent adsorbent layer is set to be non-antibacterial.
  • the elution start timing that is, the amount of water to be eluted.
  • a filter medium layer by disposing a partition member 17 such as a nonwoven fabric or a mesh filter between the antibacterial agent layer and the non-antibacterial adsorbent layer.
  • the filter medium layer composed of the antibacterial agent layer and the non-antibacterial adsorbent layer is stored and filled in a filter medium storage container 18 whose both ends are partitioned by an inlet filter 19 and an outlet filter 20.
  • the same material as that of the partition member 17 can be used for the inlet filter 19 and the outlet filter 20.
  • the ratio (filling rate) of the volume of the filter medium layer formed by the non-antibacterial adsorbent layer filled in the filter medium storage container 18 and the antibacterial agent layer to the internal volume of the filter medium storage container 18 is 90% or more. preferable. More preferably, it is 95% or more.
  • the ratio of the voids other than the filter medium layer is preferably less than 10%. More preferably, it is less than 5%.
  • the filling rate may be less than 90%.
  • the present invention can be used for a filter cartridge for a water purifier for purifying tap water mainly in a general household.
  • it can be suitably used as a filter cartridge for an undersink type water purifier that is used by being installed in a storage section at the bottom of the kitchen.
  • Filter cartridge 2 Housing 3: Lid 4: Cylindrical container 5: Outlet cap 6: Convex part at the bottom of the container 7: Filter medium 8: Concave part at the bottom of the filter medium part 9: Outlet cap receiving part 10: Inlet 11: Outlet 12: Filter medium Part 13: Activated carbon 14: Sealing member 15: Non-antibacterial adsorbent 16: Antibacterial agent 17: Partition member 18: Filter medium storage container 19: Inlet filter 20: Outlet filter

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

La présente invention concerne une cartouche filtrante pour purificateur d'eau, ladite cartouche étant obtenue en disposant un matériau filtrant dans un boîtier comprenant un récipient cylindrique équipé d'un fond et un couvercle, les résultats en matière d'étanchéité à l'eau n'étant pas compromis même si le récipient cylindrique et le couvercle sont reliés par soudage par rotation. La présente invention concerne, donc, une cartouche filtrante pour purificateur d'eau, ladite cartouche comportant un boîtier constitué d'un récipient cylindrique équipé d'un fond et d'un couvercle, et un matériau filtrant occupant ledit boîtier. Ladite cartouche filtrante pour purificateur d'eau est caractérisée en ce qu'une extrémité du matériau filtrant vient s'appliquer sur le couvercle de manière étanche à l'eau, l'autre extrémité du matériau filtrant étant disposée dans le récipient cylindrique et le couple à l'origine de la rotation du matériau filtrant autour de son axe lors de l'application du matériau filtrant au niveau d'une de ses extrémités étant supérieur au couple à l'origine de la rotation du matériau filtrant autour de son axe entre l'autre extrémité du matériau filtrant et le récipient cylindrique.
PCT/JP2014/052034 2013-02-01 2014-01-30 Cartouche filtrante pour purificateur d'eau, et purificateur d'eau WO2014119638A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014510585A JPWO2014119638A1 (ja) 2013-02-01 2014-01-30 浄水器用フィルタカートリッジおよび浄水器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013018580 2013-02-01
JP2013-018580 2013-02-01

Publications (1)

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WO2014119638A1 true WO2014119638A1 (fr) 2014-08-07

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JP (1) JPWO2014119638A1 (fr)
TW (1) TW201440870A (fr)
WO (1) WO2014119638A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021058831A (ja) * 2019-10-04 2021-04-15 大阪ガスケミカル株式会社 浄水器
JP2021142525A (ja) * 2016-11-30 2021-09-24 東レ株式会社 浄水器用フィルタカートリッジ

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7130270B2 (ja) * 2020-12-29 2022-09-05 株式会社寿ホールディングス 浄水機能付き吐水ヘッド、浄水カートリッジ及び水栓装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61139789U (fr) * 1985-02-15 1986-08-29
JPS6397381A (ja) * 1986-10-09 1988-04-28 Toyota Motor Corp 薄肉管体の摩擦圧接方法
JPH0370795U (fr) * 1989-11-06 1991-07-16
JP2003154468A (ja) * 2001-11-20 2003-05-27 Sekisui Jushi Co Ltd 回転摩擦溶着装置
JP2004050083A (ja) * 2002-07-22 2004-02-19 Mitsubishi Rayon Co Ltd 浄水器
JP2004082067A (ja) * 2002-08-29 2004-03-18 Kuritakku Kk 浄水器
JP2006051408A (ja) * 2004-08-09 2006-02-23 Japan Organo Co Ltd ろ過カートリッジ、ろ過カートリッジの製造方法及び熱板溶着装置
JP2009285567A (ja) * 2008-05-29 2009-12-10 Toray Ind Inc 浄水器用カートリッジ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2845082B1 (fr) * 2002-09-26 2006-02-10 Millipore Corp Module de purification d'un fluide, notamment d'eau
US20040094468A1 (en) * 2002-11-20 2004-05-20 Karl Fritze Freeze resistant water filter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61139789U (fr) * 1985-02-15 1986-08-29
JPS6397381A (ja) * 1986-10-09 1988-04-28 Toyota Motor Corp 薄肉管体の摩擦圧接方法
JPH0370795U (fr) * 1989-11-06 1991-07-16
JP2003154468A (ja) * 2001-11-20 2003-05-27 Sekisui Jushi Co Ltd 回転摩擦溶着装置
JP2004050083A (ja) * 2002-07-22 2004-02-19 Mitsubishi Rayon Co Ltd 浄水器
JP2004082067A (ja) * 2002-08-29 2004-03-18 Kuritakku Kk 浄水器
JP2006051408A (ja) * 2004-08-09 2006-02-23 Japan Organo Co Ltd ろ過カートリッジ、ろ過カートリッジの製造方法及び熱板溶着装置
JP2009285567A (ja) * 2008-05-29 2009-12-10 Toray Ind Inc 浄水器用カートリッジ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021142525A (ja) * 2016-11-30 2021-09-24 東レ株式会社 浄水器用フィルタカートリッジ
JP7140239B2 (ja) 2016-11-30 2022-09-21 東レ株式会社 浄水器用フィルタカートリッジ
JP2021058831A (ja) * 2019-10-04 2021-04-15 大阪ガスケミカル株式会社 浄水器
JP7390843B2 (ja) 2019-10-04 2023-12-04 大阪ガスケミカル株式会社 浄水器

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JPWO2014119638A1 (ja) 2017-01-26
TW201440870A (zh) 2014-11-01

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