JP5581645B2 - Water purification cartridge and water purifier - Google Patents

Water purification cartridge and water purifier Download PDF

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Publication number
JP5581645B2
JP5581645B2 JP2009232537A JP2009232537A JP5581645B2 JP 5581645 B2 JP5581645 B2 JP 5581645B2 JP 2009232537 A JP2009232537 A JP 2009232537A JP 2009232537 A JP2009232537 A JP 2009232537A JP 5581645 B2 JP5581645 B2 JP 5581645B2
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water
water purification
housing
raw water
purification cartridge
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JP2011078900A (en
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はつ美 竹田
厚 畠山
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Mitsubishi Chemical Corp
Mitsubishi Rayon Co Ltd
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Mitsubishi Chemical Corp
Mitsubishi Rayon Co Ltd
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Priority to JP2009232537A priority Critical patent/JP5581645B2/en
Priority to PCT/JP2010/066897 priority patent/WO2011043229A1/en
Priority to CN2010800444731A priority patent/CN102639446A/en
Priority to CN201510134491.3A priority patent/CN104724773A/en
Priority to TW99133371A priority patent/TWI396662B/en
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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

Description

本発明は、水道水等を浄水し、貯水する浄水器、および該浄水器に用いられる浄水カートリッジに関する。   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.

近年、水道水等を浄水し、その浄水を貯水する据え置き型またはピッチャー型の浄水器が広く使用されている。
浄水器としては、例えば、原水入口が形成された上部の原水貯留部と浄水出口が形成された下部の浄水貯留部とが仕切り板によって仕切られ、仕切り板に形成された装着孔に浄水カートリッジが装着されたものが知られている（特許文献１参照）。この浄水器の浄水カートリッジでは、原水の導入口が原水貯留部に連通するように配置され、浄水の吐出口が浄水貯留部に配置されている。 In recent years, stationary or pitcher-type water purifiers that purify tap water and store the purified water have been widely used.
As the water purifier, for example, the upper raw water storage part in which the raw water inlet is formed and the lower purified water storage part in which the water purification outlet is formed are partitioned by a partition plate, and the water purification cartridge is installed in the mounting hole formed in the partition plate. What was mounted | worn is known (refer patent document 1). In the water purification cartridge of this water purifier, 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.

特表２００１−５０２５９６号公報JP-T-2001-502596

しかしながら、上述した特許文献１に記載の浄水器では原水の自重によって浄水カートリッジに原水を通過させるため、濾過速度が低いという問題を有していた。
そこで、本発明は、低い濾過圧力であっても高い濾過速度を確保できる浄水カートリッジおよび浄水器を提供することを目的とする。 However, in the water purifier described in Patent Document 1 described above, since the raw water is passed through the water purification cartridge by its own weight, there is a problem that the filtration rate is low.
Therefore, 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］ 原水を浄水する浄水材と、
前記浄水材が収容され、底部に浄水吐出口が形成されたハウジング本体と、
該ハウジング本体に被せられ、頭頂部に原水導入口を有するハウジング蓋体と、
該ハウジング蓋体の内側に、ハウジング蓋体との間に間隙が形成されるように設けられた内蓋体とを備え、
前記内蓋体は、内側に空気溜り部が形成されるように側面部を備え、内蓋体の側面部に原水取水口が形成され、内蓋体の頭頂部に空気排出孔が形成されていることを特徴とする浄水カートリッジ。
［２］ 前記内蓋体の空気排出孔と原水取水口との高低差が１０ｍｍ以上３０ｍｍ以下であることを特徴とする［１］に記載の浄水カートリッジ。
［３］ 内部が仕切り体により上部の原水貯留部と下部の浄水貯留部とに仕切られ、前記仕切り体に［１］または［２］に記載の浄水カートリッジが装着されている浄水器であって、
前記仕切り体に形成された装着孔に、前記浄水カートリッジの頭頂部が装着されていることを特徴とする浄水器。 [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 purification cartridge characterized by
[2] The water purification cartridge according to [1], wherein a height difference between the air discharge hole of the inner lid and the raw water intake is 10 mm or more and 30 mm or less.
[3] 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.

本発明の浄水カートリッジおよび浄水器であれば、低い濾過圧力であっても高い濾過速度を確保できる。   With the water purification cartridge and the water purifier of the present invention, a high filtration rate can be secured even at a low filtration pressure.

本発明の浄水カートリッジの一実施形態例を示す断面図である。It is sectional drawing which shows one embodiment of the water purification cartridge of this invention. ハウジング本体の底部の正面図である。It is a front view of the bottom part of a housing main body. ハウジング本体の底部の拡大断面図である。It is an expanded sectional view of the bottom part of a housing body. ハウジング本体の底部の他の例を示す拡大断面図である。It is an expanded sectional view showing other examples of the bottom of a housing body. 本発明の浄水器の一実施形態例を示す断面図である。It is sectional drawing which shows one embodiment of the water purifier of this invention. 実施例１および比較例１の浄水器における濾過速度を示すグラフである。It is a graph which shows the filtration rate in the water purifier of Example 1 and Comparative Example 1.

＜浄水カートリッジ＞
本発明の浄水カートリッジの一実施形態例について説明する。
図１に、本実施形態例の浄水カートリッジを示す。この浄水カートリッジ１は、原水を浄水する浄水材１０と、浄水材１０が収容されたハウジング本体２０と、ハウジング本体２０に被せられたハウジング蓋体３０と、ハウジング蓋体３０の内側に設けられた内蓋体４０とを備える。 <Water purification cartridge>
An embodiment of the water purification cartridge of the present invention will be described.
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.

（浄水材）
本実施形態例における浄水材１０は、膜濾過浄水部１１と、膜濾過浄水部１１の上流側に配置された吸着浄水部１２とを有する。
膜濾過浄水部１１は、Ｕ字形に屈曲した複数の中空糸膜１１ａを、その端部の開口を維持しつつ端部間に充填されたポッティング部１１ｂにて一体化するとともに、中空糸膜１１ａを円筒状の筒状体１１ｃに収容した状態で固定した、いわゆる中空糸膜モジュールである。
また、膜濾過浄水部１１には、筒状体１１ｃの側部から外方に向かってリング状のフランジ部１１ｄが形成されている。 (Water purification material)
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, and the hollow fiber membrane 11a. Is a so-called hollow fiber membrane module fixed in a state of being accommodated in a cylindrical tubular body 11c.
Moreover, 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.

中空糸膜１１ａは、多孔質の膜であり、その材料としては、ポリエチレン、ポリプロピレン、ポリ（４−メチルペンテン−１）、ポリテトラフルオロエチレン、ポリフッ化ビニリデン、ポリスチレン、ポリスルフォン、ポリエーテルケトン、ポリエーテルエーテルケトン等が挙げられる。   The hollow fiber membrane 11a is a porous membrane, and as its material, polyethylene, polypropylene, poly (4-methylpentene-1), polytetrafluoroethylene, polyvinylidene fluoride, polystyrene, polysulfone, polyetherketone, Examples include polyetheretherketone.

ポッティング部１１ｂは、熱硬化性樹脂を硬化させて形成された部分である。熱硬化性樹脂としては、エポキシ樹脂、ウレタン樹脂、シリコーン樹脂、不飽和ポリエステル樹脂等が挙げられる。   The potting portion 11b is a portion formed by curing a thermosetting resin. Examples of the thermosetting resin include an epoxy resin, a urethane resin, a silicone resin, and an unsaturated polyester resin.

筒状体１１ｃは、上部が全面にわたって開口し、側部に複数の通水口１１ｅを有する。そのため、吸着浄水部１２を通過した水が膜濾過浄水部１１の上方および側方から内部に進入可能とされている。なお、吸着浄水部１２の吸着材の一部が、上部の開口および側部の通水口１１ｅから膜濾過浄水部１１の内部に侵入するが、中空糸膜１１ａの上方や中空糸膜１１ａ間の隙間に吸着材が存在していても構わない。   The upper part of the cylindrical body 11c opens over the entire surface, and has a plurality of water inlets 11e on the side part. Therefore, the water that has passed through the adsorption water purification unit 12 can enter 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.

吸着浄水部１２は、ハウジング本体２０の内周壁と、膜濾過浄水部１１の筒状体１１ｃの外周壁との間、および膜濾過浄水部１１よりも上方のハウジング本体２０内に、吸着材１２ａを充填することによって形成される。
吸着材１２ａとしては、粉状または粒状吸着材（活性炭、ゼオライト、モレキュラーシーブ等）、繊維状吸着材（繊維状活性炭）等が挙げられる。 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.
Examples of the adsorbent 12a include powdery or granular adsorbents (activated carbon, zeolite, molecular sieve, etc.), fibrous adsorbents (fibrous activated carbon), and the like.

（ハウジング本体）
ハウジング本体２０は、大径部２１と、大径部２１よりも下方に、大径部２１と同軸的に設けられた小径部２２と、大径部２１の下端と小径部２２の上端とを接続するリング状の段部２３と、小径部２２の下側の開口を封止する円板状の底部２４と、底部２４に複数形成された浄水吐出口２５とを有する。 (Housing body)
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.

浄水吐出口２５は、図２に示すように、底部２４の中央に形成された円形の中央吐出口２５ａと、中央吐出口２５ａの同心円２５ｂ上の円周等分４箇所に形成され、同心円２５ｂの円周方向に延びるスリット状の周辺吐出口２５ｃとが形成されている。このように、形状、大きさの異なる浄水吐出口２５を有していれば、中央吐出口２５ａと周辺吐出口２５ｃとの間で水圧に差が生じ、その結果、後述する空隙Ｂに滞留した空気が浄水とともに浄水吐出口２５からさらに抜け出しやすい。   As shown in FIG. 2, 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 the circular central discharge port 25a formed at the center of the bottom portion 24, and the concentric circle 25b. A slit-like peripheral discharge port 25c extending in the circumferential direction is formed. Thus, if it has 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 | gap B mentioned later. Air easily escapes from the purified water discharge port 25 together with the purified water.

また、浄水吐出口２５は、図３に示すように、ハウジング本体２０の内側から外側に向かってしだいに縮径するテーパ孔２５ｄとテーパ孔２５ｄから下方に延びる小径孔２５ｅとを有する。すなわち、ハウジング本体２０の内側の開口２５ｆの径よりもハウジング本体２０の外側の開口２５ｇの径の方が小さくされている。外側の開口２５ｇの面積は、内側の開口２５ｆの面積よりも０．０１ｃｍ２以上小さくされていることが好ましい。 Further, as shown in FIG. 3, 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.

ハウジング本体２０の小径部２２内には、膜濾過浄水部１１の下部がＯリング１１ｆを介して嵌合されている。これにより、膜濾過浄水部１１の、小径部２２内に嵌合された部分以外が、吸着浄水部１２を通過した水が上方および側方から進入するように、ハウジング本体２０内に配置されている   In the small diameter portion 22 of the housing body 20, the lower portion of the membrane filtration water purification portion 11 is fitted via 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 | positions in the housing main body 20 so that the water which passed the adsorption | suction water purification part 12 may approach from upper direction and a side. Have

また、膜濾過浄水部１１にはフランジ部１１ｄが形成されているため、ハウジング本体２０の小径部２２内に膜濾過浄水部１１の下部が嵌合された際には、フランジ部１１ｄがハウジング本体２０の段部２３に当接する。そのため、中空糸膜１１ａの端部の開口からなる、膜濾過浄水部１１の浄水出口１１ｇとハウジング本体２０の底部２４との間に空隙Ｂが形成される。
空隙Ｂの高さは、１〜４０ｍｍが好ましい。空隙Ｂの高さが１ｍｍ以上であれば、空隙Ｂに滞留した空気が浄水吐出口２５から抜け出しやすい。空隙８０の高さが４０ｍｍ以下であれば、カートリッジをコンパクトに作ることができる。 Moreover, since the flange part 11d is formed in the membrane filtration water purification part 11, when the lower part of the membrane filtration water purification part 11 is fitted in the small diameter part 22 of the housing main body 20, the flange part 11d becomes a housing main body. It abuts on 20 step portions 23. Therefore, 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.

（ハウジング蓋体）
ハウジング蓋体３０は、蓋体本体３１と、蓋体本体３１の中央から上方に突出した突出部３２と、突出部３２の中央から上方に延びる原水導入管３３と、突出部３２のエッジ部に設けられたツイストロック用の突起３４とを有する。このようなハウジング蓋体３０では、頭頂部に原水導入口３３ａが形成されている。 (Housing cover)
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. In such a housing lid 30, a raw water inlet 33a is formed at the top of the head.

（内蓋体）
内蓋体４０は、ハウジング本体２０の開口部に取り付けられる底板部４１と、底板部４１の中央から上方に突出した突出部４２とを有する。
突出部４２は、下部突出部４２ａと、下部突出部４２ａの中央部から上方に突出した上部突出部４２ｂとからなっている。このような突出部４２は、側面部４２ｃを有している。また、この突出部４２を有することにより、内側に空気溜り部が形成されるようになる。
下部突出部４２ａの側面部４２ｃには複数の原水取水口４２ｄが形成されている。原水取水口４２ｄにはメッシュ４２ｅが取り付けられている。
また、上部突出部４２ｂの上面には、放射状の複数のスリットである空気排出孔４２ｆが形成されている。ここで、空気排出孔４２ｆの開口は、浄水カートリッジ１を逆さにした際に吸着材が通過しない程度にされている。 (Inner lid)
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. Moreover, 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.
In addition, air discharge holes 42f that are a plurality of radial slits are formed on the upper surface of the upper protrusion 42b. Here, the opening of the air discharge hole 42f is set such that the adsorbent does not pass when the water purification cartridge 1 is turned upside down.

内蓋体４０は、ハウジング蓋体３０よりも一回り小さくされた、ハウジング蓋体３０と略同一形状のものである。そのため、ハウジング蓋体３０と内蓋体４０との間には、頭頂部から側面部にわたって間隙が形成され、この間隙が原水導入口３３ａから原水取水口４２ｄまでの原水流路Ａとなる。   The inner lid body 40 is substantially the same shape as the housing lid body 30, which is slightly smaller than the housing lid body 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.

突出部４２の原水取水口４２ｄと空気排出孔４２ｆとの高低差Ｌ１は１０ｍｍ以上３０ｍｍ以下であることが好ましい。ここで、原水取水口４２ｄと空気排出孔４２ｆとの高低差Ｌ１とは、空気排出孔４２ｆの最も下の位置から原水取水口４２ｄの最も上の位置までの高低差のことである。
高低差Ｌ１が１０ｍｍ以上であれば、ハウジング本体２０および内蓋体４０の内側に存在する空気を空気排出孔４２ｆからより容易に排出させることができ、高低差Ｌ１が３０ｍｍ以下であれば、浄水カートリッジ１をコンパクトにできる。
また、原水取水口４２ｄの高さ方向の長さＬ２は１０ｍｍ以上１００ｍｍ以下であることが好ましい。原水取水口４２ｄの高さ方向の長さＬ２は１０ｍｍ以上であれば、原水を滞留させることなく、ハウジング本体２０に導入でき、１００ｍｍ以下であれば、浄水カートリッジ１をコンパクトにできる。 It is preferable 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. Here, 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.
Further, it is preferable that 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.

ハウジング本体２０、ハウジング蓋体３０および内蓋体４０の材料としては、樹脂（ＡＢＳ樹脂、ポリカーボネート、アクリル樹脂、ポリプロピレン、ポリスチレン等）、金属（ステンレス鋼）等が挙げられる。   Examples of the material of the housing main 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.

（原水の浄化）
浄水カートリッジ１による原水の浄化は、以下のように行われる。
ハウジング蓋体３０の上部の原水導入口３３ａから導入された原水は、ハウジング蓋体３０と内蓋体４０との間に形成された原水流路Ａを内蓋体４０の底板部４１まで自重によって流下する。その後、原水は、原水取水口４２ｄを通って、ハウジング本体２０内に導入される。
内蓋体４０の原水取水口４２ｄからハウジング本体２０内に導入された原水は、原水取水口４２ｄから吸着浄水部１２に向かって自重によって流下する。
吸着浄水部１２の上部に到達した原水は、原水に含まれる不純物等を吸着材１２ａに吸着させつつ吸着浄水部１２内を膜濾過浄水部１１に向かって自重によって通過する。
吸着浄水部１２を通過した水は、膜濾過浄水部１１の上方および側方から、筒状体１１ｃの上部の開口および側部の通水口１１ｅを通って膜濾過浄水部１１の内部に侵入する。
膜濾過浄水部１１の内部に侵入した水は、ハウジング本体２０内を水が自重によって流下することによって発生する水圧によって、水に含まれる不純物等を中空糸膜１１ａに捕捉させつつ中空糸膜１１ａの一次側から二次側へ通過する。
中空糸膜１１ａを通過した浄水は、中空糸膜１１ａの端部の開口からなる浄水出口１１ｇから、膜濾過浄水部１１の浄水出口１１ｇとハウジング本体２０の底部２４との間に形成された空隙Ｂに自重によって流下し、一旦貯留される。
空隙Ｂ内の浄水は、ハウジング本体２０の底部２４に複数形成された浄水吐出口２５から自重によってハウジング本体２０の外部に吐出される。 (Purification of raw water)
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 the primary side to the secondary 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.

（作用効果）
上記浄水カートリッジ１では、内蓋体４０を備えているため、原水導入口３３ａから導入し、原水流路を通った原水は底板部４１に到達してから、原水取水口４２ｄを通って吸着浄水部１２に流下する。このように原水が流れることにより、突出部４２の内側には原水の流れがない部分が生じる。この原水の流れのない部分には、浄水材１０に含まれていた空気、原水に含まれていた空気が流れ込んで溜り、さらに、そこから空気排出孔４２ｆおよび原水導入口３３ａを通過して、浄水カートリッジ１から排出される。このように、浄水カートリッジ１の内部から空気を排出可能になっているため、浄水カートリッジ１の内部圧力による濾過速度の低下を抑制できる。
したがって、浄水カートリッジ１では、低い濾過圧力（具体的には、０．０１ＭＰａ以下の圧力）であっても高い濾過速度を確保できる (Function and effect)
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. Thus, since air can be discharged from the inside of the water purification cartridge 1, it is possible to suppress a decrease in the filtration rate due to the internal pressure of the water purification cartridge 1.
Therefore, with the water purification cartridge 1, a high filtration rate can be secured even at a low filtration pressure (specifically, a pressure of 0.01 MPa or less).

（他の形態）
なお、本発明の浄水カートリッジは、上記浄水カートリッジ１に限定されない。
例えば、浄水材は、吸着浄水部１２のみであってもよく、膜濾過浄水部１１のみであってもよい。
また、膜濾過浄水部１１および吸着浄水部１２の他に、他の浄水部をさらに併設してもよい。
また、吸着浄水部１２および膜濾過浄水部１１を上下方向に直列に配置し、膜濾過浄水部１１の側方に吸着浄水部１２を存在させなくてもよい。
また、膜濾過浄水部１１として、中空糸膜モジュールの代わりに、他の膜モジュール（平膜モジュール等）を用いてもよい。
また、膜濾過浄水部１１の筒状体１１ｃの上部の開口および側部の通水口１１ｅを、吸着浄水部１２の吸着材１２ａが侵入しないように、メッシュ、不織布等で覆ってもよい。 (Other forms)
The water purification cartridge of the present invention is not limited to the water purification cartridge 1 described above.
For example, the water purification material may be only the adsorption water purification unit 12 or only the membrane filtration water purification unit 11.
In addition to the membrane filtration water purification unit 11 and the adsorption water purification unit 12, another water purification unit may be further provided.
Moreover, the adsorption water purification part 12 and the membrane filtration water purification part 11 are arrange | positioned in series in the up-down direction, and the adsorption water purification part 12 does not need to exist in the side of the membrane filtration water purification part 11.
Moreover, as 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 | invade.

また、ハウジング本体２０の底部の浄水吐出口の一部を、他の浄水吐出口よりも高い位置に形成し、浄水吐出口間で高低差を設けてもよい。たとえば、図４に示すように、ハウジング本体２０の底部２４を下方に突出した半球状のドーム型とし、周辺吐出口２５ｃを中央吐出口２５ａよりも高い位置に設ける。この場合、高い位置の浄水吐出口と低い位置の浄水吐出口との間で水圧に差が生じ、その結果、空気が浄水とともに浄水吐出口からさらに抜け出しやすくなる。また、浄水カートリッジが傾いた場合でも、空気が浄水吐出口から抜け出しやすい。
また、浄水吐出口は、図示例のテーパ孔２５ｄと小径孔２５ｅとからなる浄水吐出口２５に限定されず、ハウジングの内側から外側に向かってしだいに縮径するテーパ孔のみからなるものでもよい。また、テーパ孔の傾斜は、図示例のように一定でなくてもよく、しだいに変化してもよい。 Moreover, 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. For example, as shown in FIG. 4, 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. In this case, 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. In addition, even when the water purification cartridge is tilted, the air can easily escape from the water purification outlet.
Further, 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.

内蓋体４０の突出部４２は、上部突出部４２ｂを有していなくてもよい。
また、内蓋体４０は、鉛直方向に沿ったまたは鉛直方向に対して傾斜した側面部を有する非平板状で、かつハウジング蓋体との間に間隙が形成される形状になっていればよく、例えば、円錐状または角錐状であって、側面部に原水取水口が形成され、頭頂部に空気排出孔が形成されたものであっても構わない。 The protrusion 42 of the inner lid body 40 may not have the upper protrusion 42b.
Further, 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. For example, 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.

＜浄水器＞
次に、本発明の浄水器の一実施形態例について説明する。
図５に、本実施形態例の浄水器を示す。この浄水器１００は、据え置き型の浄水器であり、原水貯留部１１１を有する上部容器１１０と、上半分に上部容器１１０が挿入されることによって下半分が浄水貯留部１２１となる下部容器１２０と、上部容器１１０の底部１１２に装着された浄水カートリッジ１と、上部容器１１０の上部の開口を覆う蓋体１３０とを有する。本実施形態例の浄水器１００においては、上部容器１１０の底部１１２が、浄水器１００の上部と下部とに仕切る仕切り体になっている。
浄水カートリッジ１は、ハウジング本体２０の上部の原水導入管３３が原水貯留部１１１に連通し、ハウジング本体２０の底部２４が浄水貯留部１２１に位置するように配置されている。 <Water purifier>
Next, an embodiment of the water purifier of the present invention will be described.
In FIG. 5, the water purifier of this embodiment is shown. 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. In the water purifier 100 of this embodiment, 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.

上部容器１１０の底部１１２には、大径孔１１３ａと、小径孔１１３ｂと、大径孔１１３ａの内周壁に形成されたツイストロック用の縦溝（図示略）と、ツイストロック用の縦溝に連続して大径孔１１３ａの内周壁に形成されたツイストロック用の横溝１１３ｃとからなる装着孔１１３が形成されている。   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.

上部容器１１０の底部１１２への浄水カートリッジ１の装着は、以下のようにして行われる。
すなわち、ます、装着孔１１３の大径孔１１３ａ、小径孔１１３ｂおよびツイストロック用の縦溝（図示略）に、浄水カートリッジ１のハウジング蓋体３０の突出部３２、原水導入管３３および突出部３２のエッジ部に設けられたツイストロック用の突起３４をそれぞれ挿入する。
ついで、浄水カートリッジ１を周方向に回転させて、装着孔１１３のツイストロック用の横溝１１３ｃに、ハウジング蓋体３０の突出部３２のツイストロック用の突起３４を係合させる。これにより、浄水カートリッジ１を底部１１２の装着孔１１３に装着する。 The water purification cartridge 1 is attached to the bottom 112 of the upper container 110 as follows.
That is, the large-diameter hole 113a, the small-diameter hole 113b of the mounting hole 113, and the vertical groove (not shown) for twist locking are provided in the protruding portion 32, the raw water introduction pipe 33, and the protruding portion 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.

（作用効果）
以上説明した浄水器１００では、低い濾過圧力（具体的には、０．０１ＭＰａ以下の圧力）であっても充分な濾過速度を確保できる浄水カートリッジ１を備えているため、原水貯留部１１１に導入した原水を浄水カートリッジ１で濾過して浄水する速度が速く、浄水貯留部に短時間に浄水を貯留することができる。 (Function and effect)
Since 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 speed at which the raw water is filtered and purified by the water purification cartridge 1 is fast, and the purified water can be stored in the purified water storage section in a short time.

（他の形態）
なお、本発明の浄水器は、据え置き型の浄水器１００に限定されず、例えば、ピッチャー型の浄水器であってもよい。 (Other forms)
In addition, the water purifier of this invention is not limited to the stationary water purifier 100, For example, a pitcher type water purifier may be sufficient.

以下、実施例を示す。
［実施例１］
まず、図１に示す浄水カートリッジ１を、以下のようにして作製した。
ハウジング本体２０（大径部２１の高さ約９３ｍｍ、外径約９５ｍｍ；小径部２２の高さ約１５ｍｍ、外径約５７ｍｍ；周辺吐出口２５ｃの外側の開口２５ｇの最大径６ｍｍ、開口面積０．３ｃｍ２；内側の開口２５ｆの直径７ｍｍ、開口面積０．４ｃｍ２；中央吐出口２５ａの外側の開口２５ｆの最大径１０ｍｍ、開口面積０．８ｃｍ２、内側の円形の開口２５ｆの最大径９ｍｍ、開口面積０．５ｃｍ２）、ハウジング蓋体３０（全体の高さ約４５ｍｍ、外径約９５ｍｍ；頭頂部５４の高さ約１０ｍｍ、外径約４０ｍｍ；原水導入管３３の高さの高さ約１３ｍｍ、外径約２０ｍｍ）、および内蓋体４０（全体の高さ約３３ｍｍ、外径約９５ｍｍ；頭頂部６０の高さ約１０ｍｍ、外径約３０ｍｍ）は、材料としてＡＢＳ樹脂を用い、射出成形法にて成形した。 Examples are shown below.
[Example 1]
First, 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 of about 10 mm, outer diameter of about 30 mm) uses ABS resin as a material, Shoot It was formed by a molding method.

膜濾過浄水部１１として、ポリエチレン多孔質中空糸膜（三菱レイヨン社製、ＥＸ２７０Ｔ、外径３８０μｍｍ、内径２７０μｍ、平均孔径０．１μｍ）の複数本をＵ字形に屈曲し、その端部の開口を維持しつつ端部間に充填されたポッティング部１１ｂ（ウレタン樹脂）にて一体化するとともに、中空糸膜１１ａを円筒状の筒状体１１ｃ（ＡＢＳ樹脂製、高さ約５０ｍｍ、外径約５２ｍｍ）に収容した状態で固定した、有効膜面積が０．３ｍ２の中空糸膜モジュールを用いた。
吸着材１２ａとしては、粒径０．３６〜１．７ｍｍの粒状活性炭の３５０ｃｃを用いた。 As the membrane filtration water purification section 11, a plurality of polyethylene porous hollow fiber membranes (Mitsubishi Rayon Co., Ltd., EX270T, outer diameter 380 μmm, inner diameter 270 μm, average pore diameter 0.1 μm) are bent into a U shape, and the opening at the end is opened. While being integrated with the potting portion 11b (urethane resin) filled between the end portions, the hollow fiber membrane 11a is made into a cylindrical tubular body 11c (made of ABS resin, height of about 50 mm, outer diameter of about 52 mm). The hollow fiber membrane module having an effective membrane area of 0.3 m 2 fixed in a state of being housed in the above-described configuration was used.
As the adsorbent 12a, 350 cc of granular activated carbon having a particle size of 0.36 to 1.7 mm was used.

膜濾過浄水部１１の下部（ポッティング部１１ｂ側）を、Ｏリング１１ｆを介してハウジング本体２０の小径部２２内に嵌合させ、膜濾過浄水部１１のフランジ部１１ｄとハウジング本体２０の段部２３とを超音波溶着した。中空糸膜１１ａの端部の開口からなる、膜濾過浄水部１１の浄水出口１１ｇとハウジング本体２０の底部２４との間に空隙Ｂの高さは２ｍｍとした。
ハウジング本体２０の内周壁と、膜濾過浄水部１１の筒状体１１ｃ外周壁との間、および膜濾過浄水部１１よりも上方のハウジング本体２０内に、３５０ｃｍ３の吸着材１２ａ（粒度１０〜４０メッシュパス）を充填密度０．４８ｇ／ｃｍ３で充填して吸着浄水部１２とした。その際の有効膜面積は０．３ｍ２であった。
ハウジング本体２０に内蓋体４０およびハウジング蓋体３０を取り付け、ハウジング本体２０の周縁部とハウジング蓋体３０の周縁部とを超音波溶着し、浄水カートリッジ１を得た。 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.
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, 350 cm 3 of the adsorbent 12a (particle size 10 to 10). 40 mesh pass) was packed at a packing density of 0.48 g / cm 3 to obtain an adsorption water purification unit 12. The effective membrane area at that time was 0.3 m 2 .
The inner lid body 40 and the housing lid body 30 were attached to the housing main body 20, and the peripheral edge portion of the housing main body 20 and the peripheral edge portion of the housing lid body 30 were ultrasonically welded to obtain the water purification cartridge 1.

ついで、図５に示す浄水器１００を、以下のようにして作製した。
上部容器１１０の底部１１２に浄水カートリッジ１を装着した。
上部容器１１０を浄水カートリッジ１ごと下部容器１２０に挿入し、上部容器１１０の上部に蓋体１３０を取り付け、浄水器１００を得た。 Subsequently, 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 a lid 130 was attached to the upper part of the upper container 110 to obtain the water purifier 100.

（比較例１）
内蓋体４０の使用を省略したこと以外は実施例１と同様にして、浄水器を得た。 (Comparative 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.

実施例１および比較例１の各浄水器１００の原水貯留部１１１に原水を入れ、原水の浄化を行った。その際、原水貯留部１１１内の原水の高さを調整して、濾過圧力を０．００３ＭＰａ、０．０１ＭＰａ、０．０２ＭＰａに調整した。そして、各濾過圧力での濾過速度を測定した。測定結果を図６に示す。
図６に示すように、浄水カートリッジ１において内蓋体４０を用いた実施例１の浄水器は、内蓋体４０を用いなかった比較例１の浄水器よりも濾過速度が速かった。 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. In that case, the height of the raw | natural water in the raw | natural water storage part 111 was adjusted, and the filtration pressure was adjusted to 0.003 MPa, 0.01 MPa, and 0.02 MPa. And 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.

（実施例２〜５）
内蓋体４０の上部突出部４２ｂの高さを表１に示すように変更して、原水取水口４２ｄと空気排出孔４２ｆとの高低差Ｌ１を変更したこと以外は実施例１と同様にして、浄水器を得た。 (Examples 2 to 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.

実施例１〜５の各浄水器について濾過圧力０．０１ＭＰａでの濾過速度を評価した。評価結果を表１に示す。
なお、表１において、○は濾過速度が０．５Ｌ／分以上であり、△は濾過速度が０．５Ｌ／分未満である。 About each water purifier of Examples 1-5, the filtration rate in filtration pressure 0.01MPa was evaluated. The evaluation results are shown in Table 1.
In Table 1, ◯ indicates that the filtration rate is 0.5 L / min or more, and Δ indicates that the filtration rate is less than 0.5 L / min.

Figure 0005581645
Figure 0005581645

浄水カートリッジの原水取水口４２ｄと空気排出孔４２ｆとの高低差Ｌ１が１０ｍｍ以上の実施例１，２の浄水器では、濾過速度がより速くなっていた。 Height difference L 1 between the raw water intake 42d and the air discharge hole 42f of the purification cartridge is in the water purifier of 10mm or more in Examples 1 and 2, the filtration rate had become faster.

本発明の浄水カートリッジは、原水貯留部からの原水が自重によって浄水カートリッジのハウジング内に収容された浄水部を通過し、浄水となって浄水貯留部に吐出される浄水器の浄水カートリッジとして有用である。   The water purification cartridge of the present invention is useful as a water purification cartridge for a water purifier in which the 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 becomes purified water and is discharged to the water purification storage section. is there.

１ 浄水カートリッジ
１０ 浄水材
１１ 膜濾過浄水部
１１ａ 中空糸膜
１１ｂ ポッティング部
１１ｃ 筒状体
１１ｄ フランジ部
１１ｅ 通水口
１１ｆ Ｏリング
１１ｇ 浄水出口
１２ 吸着浄水部
１２ａ 吸着材
２０ ハウジング本体
２１ 大径部
２２ 小径部
２３ 段部
２４ 底部
２５ 浄水吐出口
２５ａ 中央吐出口
２５ｂ 同心円
２５ｃ 周辺吐出口
２５ｄ テーパ孔
２５ｅ 小径孔
２５ｆ，２５ｇ 開口
３０ ハウジング蓋体
３１ 蓋体本体
３２ 突出部
３３ 原水導入管
３３ａ 原水導入口
３４ 突起
４０ 内蓋体
４１ 底板部
４２ 突出部
４２ａ 下部突出部
４２ｂ 上部突出部
４２ｃ 側面部
４２ｄ 原水取水口
４２ｅ メッシュ
４２ｆ 空気排出孔
１００ 浄水器
１１０ 上部容器
１１１ 原水貯留部
１１２ 底部
１１３ 装着孔
１１３ａ 大径孔
１１３ｂ 小径孔
１１３ｃ 横溝
１２０ 下部容器
１２１ 浄水貯留部
１３０ 蓋体 DESCRIPTION OF SYMBOLS 1 Water purification cartridge 10 Water purification material 11 Membrane filtration water purification part 11a Hollow fiber membrane 11b Potting part 11c Tubular body 11d Flange part 11e Water inlet 11f O-ring 11g Water purification outlet 12 Adsorption water purification part 12a Adsorbent 20 Housing main body 21 Large diameter part 22 Small diameter part Part 23 Step part 24 Bottom part 25 Purified water discharge port 25a Central discharge port 25b Concentric circle 25c Peripheral discharge port 25d Taper hole 25e Small diameter hole 25f, 25g Opening 30 Housing cover body 31 Cover body 31 Projection part 33 Raw water introduction pipe 33a Raw water introduction port 34 Projection 40 Inner lid 41 Bottom plate portion 42 Projection portion 42a Lower projection portion 42b Upper projection portion 42c Side surface portion 42d Raw water intake 42e Mesh 42f Air discharge hole 100 Water purifier 110 Upper container 111 Raw water storage portion 112 Bottom portion 113 Mounting hole 113a Large diameter Hole 1 3b small-diameter hole 113c transverse groove 120 lower container 121 water purifier reservoir 130 the lid

Claims (3)

原水を浄水する浄水材と、
前記浄水材が収容され、底部に浄水吐出口が形成されたハウジング本体と、
該ハウジング本体に被せられ、頭頂部に原水導入口を有するハウジング蓋体と、
該ハウジング蓋体の内側に、ハウジング蓋体との間に間隙が形成されるように設けられた内蓋体とを備え、
前記内蓋体は、内側に空気溜り部が形成されるように側面部を備え、内蓋体の側面部に原水取水口が形成され、内蓋体の頭頂部に空気排出孔が形成されていることを特徴とする浄水カートリッジ。 Water purification material to purify 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 purification cartridge characterized by 前記内蓋体の空気排出孔と原水取水口との高低差が１０ｍｍ以上３０ｍｍ以下であることを特徴とする請求項１に記載の浄水カートリッジ。   The water purification cartridge according to claim 1, wherein a height difference between the air discharge hole of the inner lid and the raw water intake is 10 mm or more and 30 mm or less. 内部が仕切り体により上部の原水貯留部と下部の浄水貯留部とに仕切られ、前記仕切り体に請求項１または２に記載の浄水カートリッジが装着されている浄水器であって、
前記仕切り体に形成された装着孔に、前記浄水カートリッジの頭頂部が装着されていることを特徴とする浄水器。 A water purifier in which the interior is partitioned into an upper raw water storage section and a lower purified water storage section by a partition body, and the water purification cartridge according to claim 1 or 2 is attached to the partition body,
A water purifier, wherein a top of the water purification cartridge is mounted in a mounting hole formed in the partition.
JP2009232537A 2009-10-06 2009-10-06 Water purification cartridge and water purifier Expired - Fee Related JP5581645B2 (en)

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