JP5736733B2 - Water purification cartridge and water purifier - Google Patents

Description

  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.

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. Attached ones are known (see Patent Documents 1 and 2).
The water purification cartridge includes, for example, a water purification material, a housing main body that contains the water purification material, and a housing lid that covers the housing main body. A water discharge outlet is formed in the housing main body, and raw water is introduced into the housing lid. The one having a mouth is used. Moreover, as a water purification material, the adsorption water purification part which consists of adsorption materials, such as activated carbon, may be used.

JP-T-2001-502596 Special table 2003-514647 gazette

In the water purification cartridge, it is required to improve the filtration rate. In response to this requirement, an inner lid body is provided such that an air reservoir having an air discharge hole at the top of the head is formed inside the housing lid body, and the air in the housing body is discharged from the air discharge hole, and the filtration speed It is conceivable to improve.
However, when the air reservoir is formed as described above, a gap is generated between the inner lid body and the water purification material. If there is a gap between the inner lid and the water purification material, the adsorbents are likely to rub against each other due to vibration during transportation, so the pulverized adsorbent is purified, especially when the adsorbent dries. There is a risk of leakage from the cartridge. When the pulverized adsorbent leaks from the water purification cartridge, it adheres to the part of the outer surface of the water purification cartridge that is attached to the mounting hole of the partition plate, and from the raw water storage section to the water purification storage section through the gap created by this adhesion. Raw water may leak.
Therefore, an object of the present invention is to provide a water purification cartridge that improves the filtration speed and prevents the adsorbent finely divided by vibration during transportation and the like from leaking out. Moreover, it aims at providing the water purifier provided with the water purification cartridge.

[1] A water purification material that has an adsorption water purification unit and 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;
An inner lid provided inside the housing lid so that a gap is formed between the housing lid and the water purification material;
A sealing plug removably attached to the raw water inlet of the housing lid ,
The inner lid body has a bottom plate portion attached to the opening of the housing body and a protruding portion protruding upward from the center of the bottom plate portion, and an air reservoir is formed inside the protruding portion. the on the side surface of the protrusion purification cartridge characterized that you have raw water intake port is formed for introducing the raw water into the housing body.
[2] The water purification cartridge according to [1], wherein the raw water inlet is formed at a top of the housing lid.
[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. ,
The water purifier, wherein the water purification cartridge is mounted such that the seal plug is removed, the raw water introduction port communicates with the raw water storage unit, and the purified water discharge port is located in the purified water storage unit.

The water purification cartridge of the present invention improves the filtration speed and prevents the adsorbent finely divided by vibration during transportation or the like from leaking out.
In the water purifier of the present invention, the filtration speed of the water purification cartridge is high, and the pulverized adsorbent is prevented from leaking.

It is sectional drawing which shows one embodiment of the water purification cartridge of this invention. It is a front view of the bottom part of a housing main body. It is an expanded sectional view of the bottom part of a housing body. It is sectional drawing which shows the other embodiment example of the water purification cartridge of this invention. It is an expanded sectional view showing other examples of the bottom of a housing body. It is sectional drawing which shows one embodiment of the water purifier of this invention.

<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 and a sealing plug 50 for sealing the inside of the water purification cartridge 1 are provided.

(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.

  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.

  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.

  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.

(Adsorption water purification section)
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.

  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.

  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.

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 0.8 cm ² or less. If the area of the outer opening 25 g is 0.8 cm ² or less, a finger or the like is not inserted into the housing body 20 from the purified water discharge port 25. The area of the outer opening 25g is preferably 0.01 cm ² or more from the viewpoint that air staying in the gap B described later easily escapes from the purified water discharge port 25.

(Housing body)
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

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 space | gap B is 1 mm or more, a finger etc. will not touch the purified water exit 11g of the membrane filtration purified water part 11. FIG. If the height of the gap B is 40 mm or less, the air staying in the gap B can easily escape from the purified water discharge port 25.

(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.

  The housing lid 30 is substantially the same shape as the inner lid 40, which is made slightly larger than the inner lid 40. Therefore, a gap is formed between the housing lid 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.

(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.
In addition, the inner lid body 40 is disposed so that a gap is formed between the inner lid body 30 and the housing lid body 30, and the gap between the inner lid body 30 and the housing lid body 30 becomes the raw water flow path A as described above.

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.
The lower protrusion 42a has a side surface 42c, and a plurality of raw water intakes 42d are formed on the side surface 42c. 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.
By providing the protruding portion 42, an air reservoir is formed inside the protruding portion 42. The air in the housing main body 20 flows into the air reservoir, and the air that has flowed in is discharged from the air discharge hole 42f so that the filtration speed is increased.
When the air reservoir is formed as described above, a gap is formed between the water purification material 10 and the inner lid body 40. Therefore, when the water purification cartridge 1 is vibrated, the adsorbent of the adsorption water purification unit 12 also vibrates according to the vibration.

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.

  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.

(Seal plug)
The sealing plug 50 is detachably inserted into the raw water introduction pipe 33 of the housing lid 30 to seal the raw water introduction port 33a. Therefore, the sealing plug 50 has a portion whose outer diameter is substantially the same as the inner diameter of the raw water introduction pipe 33.
Examples of the material of the sealing plug 50 include resin (ABS resin, polycarbonate, acrylic resin, polypropylene, polystyrene, etc.) or rubber (natural rubber, butadiene rubber, styrene-butadiene rubber, isoprene rubber, etc.).

(Purification of raw water)
Purification of raw water by the water purification cartridge 1 is performed as follows.
First, the sealing water 50 is removed from the raw water introduction pipe 33 so that raw water can be introduced.
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.

(Function and effect)
In the water purification cartridge 1 described above, the inner lid body 40 is provided such that an air reservoir having an air discharge hole 42f at the top of the head is formed inside the housing lid body 30. The exhaust of the air in the housing body 20 can be promoted, and the filtration speed can be improved.
Moreover, in this water purification cartridge 1, a gap is formed between the water purification material 10 and the inner lid body 40, and the adsorbent is likely to be pulverized by vibration during transportation or the like, but the raw water introduction pipe 33 of the housing lid body 30. Since the inside of the water purification cartridge 1 is sealed with the sealing plug 50 inserted therein, the pulverized adsorbent remains outside until the sealing plug 50 is removed and attached to the partition between the raw water storage section and the purified water storage section described later. It is prevented from leaking out.

(Other forms)
The water purification cartridge of the present invention is not limited to the water purification cartridge 1 described above.
FIG. 4 shows another embodiment of the water purification cartridge. The water purification cartridge 2 includes a housing main body 70 in which a water purification material 60 is accommodated, a housing lid body 80 covered on the housing main body 70, an inner lid body 90 disposed inside the housing lid body 80, and the water purification cartridge 2. And a sealing plug 50 that seals the inside.
In the water purification material 60, the adsorption water purification unit 62 and the membrane filtration water purification unit 61 are arranged in series in the vertical direction, and the adsorption water purification unit 62 does not exist on the side of the membrane filtration water purification unit 61.
The housing body 70 includes a straight body portion 71, a bottom portion 74 on the lower side of the straight body portion 71, and a plurality of purified water discharge ports 75 formed in the bottom portion 74.
The housing lid 80 includes a lid body 81, a raw water introduction pipe 83 extending upward from the center of the lid body 81, and a twist lock projection 84 provided on the raw water introduction pipe 83. In the housing lid 80, a raw water inlet 83a is formed at the top of the head. The housing lid 80 is slightly larger than the inner lid 90.
The inner lid 90 has a bottom plate portion 91 attached to the opening of the housing body 70 and a protruding portion 92 that protrudes upward from the center of the bottom plate portion 91. In the present embodiment example, the protrusion 92 does not have an upper protrusion.
In this water purification cartridge 2, the raw water introduced from the raw water introduction port 83 a passes through the raw water flow path A formed between the housing lid body 80 and the inner lid body 90, and is formed on the side surface portion of the protruding portion 92. The raw water intake 92 d is introduced into the housing body 70. The raw water introduced into the housing body 70 is purified through the adsorption water purification unit 62 and the membrane filtration water purification unit 61 and discharged from the water purification outlet 75 formed in the bottom 74 of the housing body 70.
In the water purification cartridge 2, the air in the housing body 70 can be discharged through the air discharge hole 92 f formed in the upper surface of the protruding portion 92 and the raw water inlet 83 a.

Further, the sealing plug 50 is not limited to the one inserted into the raw water inlets 33a and 83a, and for example, a grip portion may be provided to assist removal.
Moreover, the sealing plug 50 may cover and close the raw water inlets 33a and 83a.

Furthermore, in the water purification cartridge 1 provided with the sealing plug 50, the water purification material may be only the adsorption water purification unit 12.
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, as the membrane filtration water purification part 11, you may use another membrane module (flat membrane module etc.) instead of a hollow fiber membrane.
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.

Moreover, a part of purified water discharge outlet of the bottom part of a housing 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. 5, 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.

  Further, the inner lid body 40 may be, for example, a cone shape or a pyramid shape, in which a raw water intake port is formed on the side surface portion and an air discharge hole is formed on the top of the head.

<Water purifier>
Next, an embodiment of the water purifier of the present invention will be described.
In FIG. 6, 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 purified water cartridge 1 is disposed so that the raw water inlet 33 a at the upper part of the housing body 20 communicates with the raw water storage part 111 and the purified water discharge port 25 of the housing body 20 is located in 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 sealing plug 50 is removed from the raw water introduction pipe 33.
Next, the large-diameter hole 113a and small-diameter hole 113b of the mounting hole 113 and the vertical groove (not shown) for twist lock are provided in the protrusion 32 of the housing lid 30 of the water purification cartridge 1, the raw water introduction pipe 33, and the edges of the protrusion 32. Each of the twist lock projections 34 provided in the portion is 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.

(Function and effect)
Since the water purifier 100 described above includes the water purification cartridge 1 in which the pulverized adsorbent is prevented from leaking, the adsorbent is prevented from adhering to the outside of the raw water introduction pipe 33. Therefore, a gap is not easily generated between the mounting hole 113 and the raw water introduction pipe 33, and the raw water is less likely to leak from the raw water storage unit 111 to the purified water storage unit 121.

(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.

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 25g 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 top of head about 10 mm, outer diameter of about 40 mm; height of raw water introduction pipe 33 height of about 13 mm, outer diameter of about 20 mm), and inner lid body 40 (overall height of about 33 mm, outer diameter of about 95 mm; top height of about 10 mm, outer diameter of about 30 mm) are made of ABS resin as a material and injection molded Law It was molded Te.

As the membrane filtration water purification unit 11, a plurality of polyethylene porous hollow fiber membranes (Mitsubishi Rayon Co., Ltd., EX270TS, 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.

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 40 and the housing lid 30 were attached to the housing main body 20, and the peripheral edge of the housing main body 20 and the peripheral edge of the housing lid 30 were ultrasonically welded, and then the sealing plug 50 was inserted into the raw water introduction pipe 33. Thereby, the water purification cartridge 1 was obtained.

When a vibration experiment was performed under the following conditions using a vibration tester EL-DMA-12 / 520-12 manufactured by Emic Co., Ltd., no leakage of the adsorbent pulverized by vibration to the outside was observed.
<Test conditions>
Frequency: 5-100Hz
Single amplitude: 0.1 mm
Acceleration: 1G
Sweep: 8 minutes Test time: 60 minutes

  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, 2 Water purification cartridge 10, 60 Water purification material 11, 61 Membrane filtration water purification part 11a Hollow fiber membrane 11b Potting part 11c Tubular body 11d Flange part 11e Water passage 11f O-ring 11g Water purification outlet 12, 62 Adsorption water purification part 12a Adsorbent 20 , 70 Housing body 21 Large diameter portion 22 Small diameter portion 23 Step portion 24, 74 Bottom portion 25, 75 Purified water discharge port 25a Central discharge port 25b Concentric circle 25c Peripheral discharge port 25d Tapered hole 25e Small diameter hole 25f, 25g Opening 30, 80 Housing lid 31, 81 Lid main body 32 Protruding part 33, 83 Raw water introducing pipe 33a, 83a Raw water introducing port 34, 84 Protrusion 40, 90 Inner cover 41, 91 Bottom plate part 42, 92 Protruding part 42a Lower projecting part 42b Upper projecting part 42c Side surfaces 42d, 92d Raw water intake 42e Mesh 42f, 92f Air discharge hole 50 Seal plug 100 Water purifier 110 Upper container 111 Raw water storage part 112 Bottom part 113 Mounting hole 113a Large diameter hole 113b Small diameter hole 113c Horizontal groove 120 Lower container 121 Clean water storage part 130 Lid

Claims (3)

A water purification material that has an adsorption water purification unit and 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;
An inner lid provided inside the housing lid so that a gap is formed between the housing lid and the water purification material;
A sealing plug removably attached to the raw water inlet of the housing lid ,
The inner lid body has a bottom plate portion attached to the opening of the housing body and a protruding portion protruding upward from the center of the bottom plate portion, and an air reservoir is formed inside the protruding portion. the on the side surface of the protrusion purification cartridge characterized that you have raw water intake port is formed for introducing the raw water into the housing body.   The water purification cartridge according to claim 1, wherein the raw water inlet is formed at the top of the housing lid. 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,
The water purifier, wherein the water purification cartridge is mounted such that the seal plug is removed, the raw water introduction port communicates with the raw water storage unit, and the purified water discharge port is located in the purified water storage unit.

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