WO2011043229A1 - 浄水カートリッジおよび浄水器 - Google Patents

浄水カートリッジおよび浄水器 Download PDF

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Publication number
WO2011043229A1
WO2011043229A1 PCT/JP2010/066897 JP2010066897W WO2011043229A1 WO 2011043229 A1 WO2011043229 A1 WO 2011043229A1 JP 2010066897 W JP2010066897 W JP 2010066897W WO 2011043229 A1 WO2011043229 A1 WO 2011043229A1
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WO
WIPO (PCT)
Prior art keywords
water
water purification
housing
lid
raw water
Prior art date
Application number
PCT/JP2010/066897
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
はつ美 竹田
畠山　厚
Original Assignee
三菱レイヨン・クリンスイ株式会社
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 三菱レイヨン・クリンスイ株式会社 filed Critical 三菱レイヨン・クリンスイ株式会社
Priority to CN2010800444731A priority Critical patent/CN102639446A/zh
Publication of WO2011043229A1 publication Critical patent/WO2011043229A1/ja

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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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • 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 water purifier that purifies and stores tap water and the like, and a water purification cartridge used in the water purifier.
  • the raw water storage part formed with the raw water inlet located in the upper part of the water purifier and the purified water storage part formed with the water purification outlet located in the lower part of the water purifier are partitioned by a partition plate,
  • a water purifier in which a water purification cartridge is mounted in a mounting hole formed in is known (see Patent Document 1).
  • the raw water inlet is disposed so as to communicate with the raw water reservoir, and the water outlet is disposed in the purified water reservoir.
  • an object of the present invention is to provide a water purification cartridge and a water purifier that can ensure a high filtration rate even at a low filtration pressure.
  • [1] Water purification material that purifies raw water The housing body in which the water purification material is accommodated and the water purification outlet is formed at the bottom; A housing lid that covers the housing body and has a raw water inlet at the top of the head; An inner lid provided inside the housing lid so as to form a gap with the housing lid; The inner lid includes a side surface so that an air reservoir is formed inside, a raw water intake is formed in the side surface of the inner lid, and an air discharge hole is formed in the top of the inner lid.
  • a water purifier in which the interior is partitioned into an upper raw water storage part and a lower purified water storage part by a partition, and the water purification cartridge according to [1] or [2] is attached to the partition.
  • a water purifier wherein a top of the water purification cartridge is mounted in a mounting hole formed in the partition.
  • the water purification cartridge and water purifier of the present invention can secure a high filtration rate even at a low filtration pressure.
  • FIG. 1 shows a water purification cartridge according to this embodiment.
  • the water purification cartridge 1 is provided inside a water purification material 10 for purifying raw water, a housing main body 20 in which the water purification material 10 is accommodated, a housing lid 30 covered on the housing main body 20, and the housing lid 30.
  • An inner lid 40 An inner lid 40.
  • the water purification material 10 in the present embodiment includes a membrane filtration water purification unit 11 and an adsorption water purification unit 12 disposed on the upstream side of the membrane filtration water purification unit 11.
  • the membrane filtration water purification unit 11 integrates a plurality of hollow fiber membranes 11a bent in a U shape with a potting unit 11b filled between the end portions while maintaining the opening of the end portions of the hollow fiber membranes 11a.
  • This is a so-called hollow fiber membrane module in which the hollow fiber membrane 11a is fixed in a state of being accommodated in a cylindrical tubular body 11c.
  • the membrane filtration water purification part 11 is formed with a ring-shaped flange part 11d outward from the side part of the cylindrical body 11c.
  • the hollow fiber membrane 11a is a porous membrane, and materials thereof include polyethylene, polypropylene, poly (4-methylpentene-1), polytetrafluoroethylene, polyvinylidene fluoride, polystyrene, polysulfone, polyether ketone, Examples include polyetheretherketone.
  • the potting portion 11b is a portion formed by curing a thermosetting resin.
  • the thermosetting resin include an epoxy resin, a urethane resin, a silicone resin, and an unsaturated polyester resin.
  • the cylindrical body 11c is open over the entire surface, and has a plurality of water passages 11e on the side. Therefore, the water that has passed through the adsorption water purification unit 12 can enter the inside of the membrane filtration water purification unit 11 from above and from the side. A part of the adsorbent of the adsorption water purification unit 12 enters the inside of the membrane filtration water purification unit 11 from the upper opening and the side water inlet 11e, but above the hollow fiber membrane 11a and between the hollow fiber membranes 11a. An adsorbent may be present in the gap.
  • the adsorption water purification unit 12 has an adsorbent 12a between the inner peripheral wall of the housing main body 20 and the outer peripheral wall of the cylindrical body 11c of the membrane filtration water purification unit 11 and in the housing main body 20 above the membrane filtration water purification unit 11. Formed by filling.
  • the adsorbent 12a include powdery or granular adsorbents (activated carbon, zeolite, molecular sieve, etc.), fibrous adsorbents (fibrous activated carbon), and the like.
  • the housing body 20 includes a large diameter portion 21, a small diameter portion 22 provided coaxially with the large diameter portion 21 below the large diameter portion 21, and a lower end of the large diameter portion 21 and an upper end of the small diameter portion 22. It has a ring-shaped step portion 23 to be connected, a disk-shaped bottom portion 24 that seals the lower opening of the small diameter portion 22, and a plurality of purified water discharge ports 25 formed in the bottom portion 24.
  • the purified water discharge port 25 is formed at four circularly equally divided locations on the concentric circle 25b of the central discharge port 25a and a circular central discharge port 25a formed at the center of the bottom portion 24, and is concentric A slit-shaped peripheral discharge port 25c extending in the circumferential direction is formed.
  • the purified water discharge port 25 from which a shape and a size differ, a difference in water pressure will arise between the center discharge port 25a and the periphery discharge port 25c, and, as a result, it retained in the space
  • the purified water discharge port 25 has a tapered hole 25d that gradually decreases in diameter from the inside to the outside of the housing body 20, and a small diameter hole 25e that extends downward from the tapered hole 25d. That is, the diameter of the opening 25g outside the housing body 20 is made smaller than the diameter of the opening 25f inside the housing body 20.
  • the area of the outer opening 25g is preferably smaller than the area of the inner opening 25f by 0.01 cm 2 or more.
  • the lower part of the membrane filtration water purification unit 11 is fitted into the small diameter portion 22 of the housing body 20 through an O-ring 11f. Thereby, except the part fitted in the small diameter part 22 of the membrane filtration water purification part 11, it arrange
  • a gap B is formed between the water purification outlet 11g of the membrane filtration water purification unit 11 and the bottom 24 of the housing main body 20, which is an opening at the end of the hollow fiber membrane 11 a.
  • the height of the gap B is preferably 1 to 40 mm. If the height of the gap B is 1 mm or more, the air staying in the gap B can easily escape from the purified water discharge port 25. If the height of the gap 80 is 40 mm or less, the cartridge can be made compact.
  • the housing lid 30 includes a lid body 31, a protrusion 32 protruding upward from the center of the lid body 31, a raw water introduction pipe 33 extending upward from the center of the protrusion 32, and an edge portion of the protrusion 32. And a twist lock projection 34 provided.
  • a raw water inlet 33a is formed at the top of the head.
  • the inner lid body 40 includes a bottom plate portion 41 attached to the opening of the housing body 20 and a protruding portion 42 that protrudes upward from the center of the bottom plate portion 41.
  • the protruding portion 42 includes a lower protruding portion 42a and an upper protruding portion 42b protruding upward from the central portion of the lower protruding portion 42a.
  • Such a protruding portion 42 has a side surface portion 42c.
  • an air pocket part will be formed inside by having this protrusion part 42.
  • FIG. A plurality of raw water intakes 42d are formed in the side surface portion 42c of the lower protrusion 42a.
  • a mesh 42e is attached to the raw water intake 42d.
  • air discharge holes 42f that are a plurality of radial slits are formed on the upper surface of the upper protrusion 42b.
  • the opening of the air discharge hole 42f is formed in such a size that the adsorbent does not pass when the water purification cartridge 1 is turned upside down.
  • the inner lid 40 is slightly smaller than the housing lid 30 and has substantially the same shape as the housing lid 30. Therefore, a gap is formed between the top of the housing 30 and the inner lid 40 from the top to the side, and this gap becomes the raw water flow path A from the raw water inlet 33a to the raw water intake 42d.
  • height difference L 1 between the raw water intake 42d and the air discharge hole 42f of the protrusion 42 is 10mm or more 30mm or less, and more preferably 10mm or more 15mm or less.
  • the raw water and the height difference L 1 between the intake 42d and the air discharge hole 42f is that the difference in height from the position of the lowest air discharge hole 42f to the uppermost position of the raw water intake 42d. If the height difference L 1 is 10mm or more, the air present inside the housing body 20 and Uchifutatai 40 can be more easily discharged from the air discharge hole 42f, as long as height difference L 1 is 30mm or less
  • the water purification cartridge 1 can be made compact.
  • the height direction of the length L 2 of 42d raw water intake is 10mm or more than 100mm. Height direction of the length L 2 of 42d raw water intake is long 10mm or more, without staying the raw water, it can be introduced into the housing body 20, if 100mm or less, the water purification cartridge 1 compact.
  • Examples of the material of the housing body 20, the housing lid 30 and the inner lid 40 include resin (ABS resin, polycarbonate, acrylic resin, polypropylene, polystyrene, etc.), metal (stainless steel), and the like.
  • Purification of raw water by the water purification cartridge 1 is performed as follows.
  • the raw water introduced from the raw water inlet 33a at the upper part of the housing lid 30 passes through the raw water flow path A formed between the housing lid 30 and the inner lid 40 to the bottom plate portion 41 of the inner lid 40 by its own weight. Flow down. Thereafter, the raw water is introduced into the housing body 20 through the raw water intake 42d.
  • the raw water introduced into the housing body 20 from the raw water intake 42d of the inner lid 40 flows down from the raw water intake 42d toward the adsorption water purification unit 12 by its own weight.
  • the raw water that has reached the upper part of the adsorption water purification unit 12 passes through the adsorption water purification unit 12 by its own weight toward the membrane filtration water purification unit 11 while adsorbing impurities and the like contained in the raw water to the adsorbent 12a.
  • the water that has passed through the adsorption water purification unit 12 enters the inside of the membrane filtration water purification unit 11 from the upper side and the side of the membrane filtration water purification unit 11 through the upper opening of the cylindrical body 11c and the side water inlet 11e. .
  • the water that has entered the inside of the membrane filtration water purification unit 11 is trapped in the hollow fiber membrane 11a while trapping impurities contained in the water by the water pressure generated by the water flowing down in the housing body 20 due to its own weight. Passes from one side to the other side.
  • the purified water that has passed through the hollow fiber membrane 11a is a gap formed between the purified water outlet 11g comprising the opening at the end of the hollow fiber membrane 11a and the purified water outlet 11g of the membrane filtration purified water portion 11 and the bottom 24 of the housing body 20. It flows down to B by its own weight and is temporarily stored.
  • the purified water in the gap B is discharged to the outside of the housing body 20 by its own weight from a plurality of purified water discharge ports 25 formed in the bottom 24 of the housing body 20.
  • the water purification cartridge 1 Since the water purification cartridge 1 includes the inner lid body 40, the raw water introduced from the raw water introduction port 33a and passed through the raw water flow path reaches the bottom plate portion 41, and then passes through the raw water intake port 42d to adsorb purified water. It flows down to the part 12. As the raw water flows in this way, a portion where no raw water flows is generated inside the protrusion 42. In the part where there is no flow of the raw water, the air contained in the water purification material 10 and the air contained in the raw water flow and accumulate, and further pass through the air discharge hole 42f and the raw water introduction port 33a, It is discharged from the water purification cartridge 1.
  • the water purification cartridge 1 can ensure a high filtration rate even at a low filtration pressure (specifically, a pressure of 0.01 MPa or less).
  • the water purification cartridge of the present invention is not limited to the water purification cartridge 1 described above.
  • the water purification material may be only the adsorption water purification unit 12 or only the membrane filtration water purification unit 11.
  • another water purification unit may be further provided.
  • the adsorption water purification part 12 and the membrane filtration water purification part 11 are arrange
  • the membrane filtration water purification part 11 you may use another membrane module (flat membrane module etc.) instead of a hollow fiber membrane module. Moreover, you may cover the opening of the upper part of the cylindrical body 11c of the membrane filtration water purification part 11, and the water outlet 11e of a side part with a mesh, a nonwoven fabric, etc. so that the adsorbent 12a of the adsorption water purification part 12 may not penetrate
  • a part of purified water discharge outlet of the bottom part of the housing main body 20 may be formed in a position higher than another purified water discharge outlet, and a height difference may be provided between purified water discharge outlets.
  • the bottom 24 of the housing body 20 is a hemispherical dome shape protruding downward, and the peripheral discharge port 25c is provided at a position higher than the central discharge port 25a.
  • a difference in water pressure occurs between the high-purity water discharge outlet and the low-purity water discharge outlet, and as a result, air is more likely to escape from the clean water discharge outlet together with the purified water.
  • the water purification cartridge is tilted, the air can easily escape from the water purification outlet.
  • the purified water discharge port is not limited to the purified water discharge port 25 including the tapered hole 25d and the small-diameter hole 25e in the illustrated example, and may include only a tapered hole that gradually decreases in diameter from the inside to the outside of the housing. . Further, the inclination of the tapered hole does not have to be constant as in the illustrated example, and may change gradually.
  • the protrusion 42 of the inner lid body 40 may not have the upper protrusion 42b.
  • the inner lid body 40 may be a non-flat plate having a side surface portion that is along the vertical direction or inclined with respect to the vertical direction, and has a shape in which a gap is formed between the inner lid body 40 and the housing lid body.
  • a conical shape or a pyramid shape may be used, in which a raw water intake port is formed in the side surface portion and an air discharge hole is formed in the top of the head.
  • the water purifier 100 is a stationary water purifier, and includes an upper container 110 having a raw water storage unit 111 and a lower container 120 whose lower half serves as a purified water storage unit 121 by inserting the upper container 110 into the upper half.
  • the water purification cartridge 1 mounted on the bottom 112 of the upper container 110 and the lid 130 covering the upper opening of the upper container 110 are provided.
  • the bottom 112 of the upper container 110 is a partition that partitions the upper and lower portions of the water purifier 100.
  • the water purification cartridge 1 is disposed so that the raw water introduction pipe 33 at the top of the housing body 20 communicates with the raw water storage part 111 and the bottom 24 of the housing body 20 is positioned at the purified water storage part 121.
  • the bottom 112 of the upper container 110 has a large-diameter hole 113a, a small-diameter hole 113b, a vertical groove for twist lock (not shown) formed in the inner peripheral wall of the large-diameter hole 113a, and a vertical groove for twist lock.
  • a mounting hole 113 including a twist lock lateral groove 113c formed continuously on the inner peripheral wall of the large-diameter hole 113a is formed.
  • the water purification cartridge 1 is attached to the bottom 112 of the upper container 110 as follows. That is, first, the large-diameter hole 113a, the small-diameter hole 113b of the mounting hole 113, and the vertical groove (not shown) for twist lock are provided with the protrusion 32, the raw water introduction pipe 33, and the protrusion 32 of the housing lid 30 of the water purification cartridge 1. Twist-locking projections 34 provided at the edge portions are respectively inserted. Next, the water purification cartridge 1 is rotated in the circumferential direction, and the twist lock protrusion 34 of the protrusion 32 of the housing lid 30 is engaged with the twist lock lateral groove 113 c of the mounting hole 113. Thereby, the water purification cartridge 1 is mounted in the mounting hole 113 of the bottom portion 112.
  • the water purifier 100 described above includes the water purification cartridge 1 that can secure a sufficient filtration speed even at a low filtration pressure (specifically, a pressure of 0.01 MPa or less), it is introduced into the raw water storage unit 111.
  • the raw water is filtered through the water purification cartridge 1 to purify the raw water, and the purified water can be stored in the purified water storage section in a short time.
  • the water purifier of this invention is not limited to the stationary water purifier 100,
  • a pitcher type water purifier may be sufficient.
  • the water purification cartridge 1 shown in FIG. 1 was produced as follows. Housing main body 20 (height of large diameter portion 21 is about 93 mm, outer diameter is about 95 mm; height of small diameter portion 22 is about 15 mm, outer diameter is about 57 mm; maximum diameter 6 mm of opening 25 g outside peripheral discharge port 25 c, opening area 0 .3cm 2; 7mm diameter inside the opening 25f, the opening area 0.4 cm 2; maximum diameter 10mm outside the opening 25f of the central discharge port 25a, the opening area 0.8 cm 2, the maximum diameter 9mm inner circular opening 25f , Opening area 0.5 cm 2 ), housing lid 30 (overall height of about 45 mm, outer diameter of about 95 mm; height of head portion 54 of about 10 mm, outer diameter of about 40 mm; height of raw water introduction pipe 33 height About 13 mm, outer diameter about 20 mm) and inner lid body 40 (overall height of about 33 mm, outer diameter of about 95 mm; height of head portion 60
  • a plurality of polyethylene porous hollow fiber membranes (EX 270T manufactured by Mitsubishi Rayon Co., Ltd., outer diameter 380 ⁇ mm, inner diameter 270 ⁇ m, average pore diameter 0.1 ⁇ m) are bent into a U shape, and the end of the porous hollow fiber membrane While being integrated with a potting portion 11b (urethane resin) filled between the end portions while maintaining the opening of the portion, the hollow fiber membrane 11a is formed into a cylindrical tubular body 11c (made of ABS resin, height of about 50 mm, A hollow fiber membrane module having an effective membrane area of 0.3 m 2 fixed in a state of being accommodated in an outer diameter of about 52 mm was used.
  • the adsorbent 12a 350 cc of granular activated carbon having a particle size of 0.36 to 1.7 mm was used.
  • the lower part (potting part 11b side) of the membrane filtration water purification part 11 is fitted into the small diameter part 22 of the housing main body 20 via the O-ring 11f, and the flange part 11d of the membrane filtration water purification part 11 and the step part of the housing main body 20 23 was ultrasonically welded.
  • the height of the gap B between the water purification outlet 11g of the membrane filtration water purification unit 11 and the bottom 24 of the housing main body 20 formed of an opening at the end of the hollow fiber membrane 11a was 2 mm.
  • the water purifier 100 shown in FIG. 5 was produced as follows.
  • the water purification cartridge 1 was attached to the bottom 112 of the upper container 110.
  • the upper container 110 was inserted into the lower container 120 together with the water purification cartridge 1, and the lid body 130 was attached to the upper part of the upper container 110 to obtain the water purifier 100.
  • Example 1 A water purifier was obtained in the same manner as in Example 1 except that the use of the inner lid 40 was omitted.
  • Raw water was put into the raw water storage part 111 of each water purifier 100 of Example 1 and Comparative Example 1, and the raw water was purified.
  • natural water storage part 111 was adjusted, and the filtration pressure was adjusted to 0.003 MPa, 0.01 MPa, and 0.02 MPa.
  • the filtration rate in each filtration pressure was measured.
  • the measurement results are shown in FIG. As shown in FIG. 6, the water purifier of Example 1 using the inner lid 40 in the water purification cartridge 1 had a higher filtration rate than the water purifier of Comparative Example 1 that did not use the inner lid 40.
  • Example 5 An upper height of the protruding portion 42b of Uchifutatai 40 modified as shown in Table 1, is in the same manner as in Example 1 except for changing the height difference L 1 between the raw water intake 42d and the air discharge hole 42f I got a water purifier.
  • the water purification cartridge of the present invention is useful as a water purification cartridge for a water purifier in which raw water from the raw water storage section passes through the water purification section housed in the housing of the water purification cartridge by its own weight and is discharged into the water purification storage section as purified water. is there.

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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)
  • Separation Using Semi-Permeable Membranes (AREA)
PCT/JP2010/066897 2009-10-06 2010-09-29 浄水カートリッジおよび浄水器 WO2011043229A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010800444731A CN102639446A (zh) 2009-10-06 2010-09-29 净水滤筒及净水器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009232537A JP5581645B2 (ja) 2009-10-06 2009-10-06 浄水カートリッジおよび浄水器
JP2009-232537 2009-10-06

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WO2011043229A1 true WO2011043229A1 (ja) 2011-04-14

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CN (2) CN104724773A (zh)
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CN103562137A (zh) * 2011-05-04 2014-02-05 施特里克斯有限公司 水处理设备

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JP6159970B2 (ja) * 2011-08-02 2017-07-12 株式会社アクアバンク ウォーターサーバー
TWI616352B (zh) 2012-03-20 2018-03-01 碧然德有限公司 用於製造液體處理系統之卡匣的方法
JP2014233677A (ja) * 2013-06-03 2014-12-15 大阪ガスケミカル株式会社 浄水器
CN107055848B (zh) * 2017-06-28 2020-05-22 佛山市司米克家居环境科技有限公司 一种便于更换滤芯的净水器

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JP2005230700A (ja) * 2004-02-19 2005-09-02 Mitsubishi Rayon Co Ltd 浄水器
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103562137A (zh) * 2011-05-04 2014-02-05 施特里克斯有限公司 水处理设备
CN103562137B (zh) * 2011-05-04 2015-05-20 施特里克斯有限公司 水处理设备

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TWI396662B (zh) 2013-05-21
JP5581645B2 (ja) 2014-09-03
CN104724773A (zh) 2015-06-24
JP2011078900A (ja) 2011-04-21
TW201116490A (en) 2011-05-16
CN102639446A (zh) 2012-08-15

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