JP2001300517A - Cartridge for water purifying and activating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cartridge high in water purifying and activating performances and long in the service life. SOLUTION: This cartridge for water purifying and activating device, is constituted such that the inside is formed of a small diameter of filter layer and a large diameter of water purifying and activating layer extending downwardly, as it surrounds the filter layer, and this water purifying and activating layer consists of a water purifying layer and/or a water activating layer, and water moves through these layers from underside to upside. Since in this cartridge for water purifying and activating device a water retaining time is long, the high water purifying and activating performances can be maintained, and also portions of the water purifying and activating layer and the filter layer are laid over the other vertically, and a portion is erected in an annular shape looked like a concentric circular shape from the upside, thus pressure loss does not generate in the water purifying and activating layer and the service life of the cartridge is kept long.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge used for a household water purifier. In particular, the present invention relates to a cartridge having an internal structure formed of a filtration layer, a purified water layer, and the like.

[0002]

2. Description of the Related Art Heretofore, the following cartridges have been disclosed as cartridges used in household water purifiers, in particular, cartridges having an internal structure formed by a filtration layer and a water purification water layer. That is, the cartridge has a multi-layered structure in which the cartridge is filtered with a fiber filter medium, the pH is adjusted with a magnesium hydroxide layer, the residual chlorine is removed with a calcium sulfite layer, the coral sand layer is sterilized, the activated carbon layer is deodorized, and finally, the filter is filtered with a fiber filter medium. "Purifier" (Japanese Patent Application Laid-Open No. Hei 1-310785), "A water purifier" comprising a catalyst layer for decomposing hypochlorous acid, an activated carbon layer and a nonwoven fabric interposed therebetween to extend the life of the activated carbon (Japanese Patent Application Laid-Open No. Hei 5-31085).
No.-245469), a water purifier (Japanese Patent Application Laid-Open No. 6-91261), which removes odor of mold and mold in the adsorbent layer and prevents the passage of bacteria and the like in the hollow fiber membrane layer, and a water-absorbing polymer. "Water purifier" comprising a layer made of granular activated carbon and a water-supplying polymer and a hollow fiber membrane (JP-A-7-88473);
"Water purification device" (JP-A-8-52463) in which a layer of a germicidal resin, a layer of activated carbon, and a porous filter are sequentially arranged; pebble in the first layer, sand and mineral components in the second layer, and charcoal in the third layer "Activated carbon, a water purification function device for producing mineral water, a water purification device used in the device, and a method for producing the same" comprising a fourth layer made of chemical fibers and plant fibers (Japanese Patent Laid-Open No. 9-20).
No. 6762), "2 way water purifier" provided with a granular activated carbon layer and a hollow fiber membrane filter layer (Japanese Patent Laid-Open No. 11-179346).
No.) and the like. These techniques employ a configuration in which two to four layers of hollow fiber membranes, activated carbon, pebbles, antibacterial agents, etc. are stacked one above the other, but a plurality of filtration layers or purified water layers are formed in one cartridge. If this is done, the amount of the filter material or the water purification material in each layer becomes relatively small, so that sufficient filtration and water purification cannot be performed, and pressure loss occurs in each layer, which may shorten the life of the cartridge.

[0003] As a method of solving such a drawback of a cartridge in which a plurality of filter materials or clean water materials are stacked one above the other,
There is a method in which a layer is formed in an annular shape so as to be seen concentrically when each filtering material or water purification material is viewed from above, and the layer is erect. For example, a "water purification cartridge for a water purifier" in which a hollow fiber membrane case is arranged in the center of a cartridge case and activated carbon is stored and arranged between them (Japanese Patent Laid-Open No. 5-200384).
No. 2), "Water purifier" that removes odor and moldy odor in the adsorbent layer and prevents the passage of bacteria and the like in the hollow fiber membrane layer
No. 1157) and a "pleated cartridge filter" in which granular activated carbon is filled between a filter material made of activated carbon fiber and a pleated filter (Japanese Patent Laid-Open No. 10-113507).
No.) is mentioned as an example. Such a method has a small pressure loss due to the large surface area (water contact area) of the layer of the filter material or the water purification material, so that a large flow rate can be treated.

In view of the above, in order to have sufficient filtration and water purification capacity and not to cause pressure loss in each layer, a hollow fiber membrane, a granular activated carbon layer, a hollow activated carbon layer, A "water purifier" (Japanese Patent Laid-Open No. 7-256267) in which a thread film and an antibacterial agent layer are arranged in series is disclosed. According to the present invention, a hollow fiber membrane, a granular activated carbon layer, and a hollow fiber membrane are three-layered one above the other and located at the center of the cartridge, and the side portion of the three-layer polymer is surrounded by an antimicrobial agent layer. Although it is made to have a concentric structure when viewed from above, the amount of activated carbon is reduced by the extra hollow fiber membrane layer in front, so trihalomethane in water, pesticides, organic chlorinated solvents, surfactant In addition to the insufficient filtration ability of the agent, etc., the pressure resistance is reduced by connecting the hollow fiber membrane layer, which is filtered through the hollow fiber membrane with activated carbon, and then filtered through the hollow fiber membrane into two layers. There is a drawback that the water is remarkably increased and the water flow is poor.

[0005]

DISCLOSURE OF THE INVENTION The present inventors have maintained the water purification capacity of a cartridge at a high level,
As a result of earnest research, we obtained a cartridge that does not cause pressure loss in each layer of the filtration layer and keeps the service life long. As a result, the purified water layer and the filtration layer are partially overlapped one above the other, and a part looks concentric from above. It is made into a structure that stands up in a ring shape, the amount of the water purification layer such as activated carbon is relatively increased, and the water to be treated is moved upward from below. The present invention was completed by conceiving that the residence time should be increased.

[0006]

According to the present invention, there is provided a filter having a small-diameter filter layer and a large-diameter purified water layer which surrounds the filter layer and extends downward. A water purifying water cartridge comprising a layer and / or an active water layer, wherein water moves through the layers from bottom to top. Hereinafter, the contents of the present invention will be described with reference to the drawings.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The cartridge for a water purifier of the present invention is made of stainless steel, other metals, ceramics, or the like.
The cartridge body 1 has an internal cavity made of a material such as plastics and includes a filtration layer 2 and a purified water layer 3. The cartridge body 1 has a lid 1B and a bottom 1C at an upper end and a lower end of a cylindrical body 1A.
The body 1 </ b> A is sliced at an intermediate position in the vertical direction and separated into a main body upper part 11 and a main body lower part 12. The cut portions of the main body upper part 11 and the main body lower part 12 are formed by screw molding so that both can be detachably screwed and sealed.

The upper part 11 of the main body is formed in two steps with a wide inner diameter so as to narrow the upper part and widen the lower part (see FIG. 2).
A drain hole 1BA is opened in the lid 1B of the upper part 11 of the main body, and a drain pipe 13 is connected thereto. And this body upper part 11
Is fitted inside the upper part of the filtration layer 2.

On the other hand, a water supply hole 1CA is opened in a bottom portion 1C of the lower portion 12 of the main body and connected to a water supply pipe 14. The other end of the water supply pipe 14 is connected to a water supply source such as a tap to supply water from the water supply source into the cartridge body 1.

The filtration layer 2 is preferably made of the same material as that of the cartridge body 1, and is provided with a hollow fiber membrane, a microfilter, an ultrafiltration filter, in a filtration tube 2A having an opening at the top of the cylinder and a closed bottom cover. It is filled with a filtration material (physical filtration material) 2B such as a membrane, a reverse osmosis membrane, a pleated ultramicrofilter, a pleated flat membrane, or the like. As described above, the upper part 2AA of the filter cylinder 2A is fitted inside the main body upper part 11, but the lower part 2AB is exposed inside the cartridge main body 1.

An appropriate number, preferably a plurality of pores 2AC are formed in the uppermost side of the lower part 2AB of the filter cylinder 2A, so that water can enter the filter cylinder 2A through the pores 2AC. Is configured. The shape of the gap 2AC is not particularly limited, and may be arbitrarily determined such as a circle, a rectangle, a triangle, an ellipse, and an irregular shape.

A purified water layer 3 is formed inside the cartridge body 1 in which the filter tube 2A is fitted, that is, in a space other than the portion occupied by the filter layer 2. The purified water layer 3 is provided on the upper surface of the bottom 1 </ b> C of the cartridge body 1 with the nonwoven fabric 3.
C, and on it, activated water, compressed activated carbon, silver-activated activated carbon, activated carbon fiber, ion exchange resin, water exchange material (chemical filtration material) 3A such as ion exchange fiber, etc. 3A and / or mineral components useful for the human body Minerals containing elements, animal and plant fossils, ceramics, charcoal, etc., such as calcium, magnesium,
Sodium, potassium, zinc, phosphorus, iron, manganese, copper,
Ore that contains molybdenum, selenium, nickel, chromium, lithium, cobalt, vanadium, etc. and can be eluted in water,
For example, an active water material 3B composed of one or a mixture of two or more kinds of synthetic zeolites such as Ioite, Bakuhanite, diatomaceous earth, natural zeolite, silver zeolite, etc., coral sand, pyrite, limonite, magnetite, marble, charcoal, and bamboo charcoal. Is formed by mounting and filling.

The water purifying water layer 3 may use either the water purifying material 3A or the water purifying material 3B alone or in combination.
C, preferably, an antibacterial nonwoven fabric is placed. When these water purifying materials 3A and active water materials 3B are used together,
It is preferable that the upper part of the cartridge body 1 is filled with the active water material 3B and the lower part of the cartridge body 1 is filled with the water purification material 3A, and a nonwoven fabric 3C, preferably an antibacterial nonwoven fabric, is laid between the two. In this way, the water purification material 3A can be made of organic matter, pesticides, residual chlorine, trihalomethane,
Surfactants, odorous substances and the like are removed by filtration, and the activated water material 3B acts on the purified water to dissolve the minerals and the like. The water that has risen and passed through the water purification material 3A, then the layer of the active water material 3B, and further through the nonwoven fabric 3C enters the filter cylinder 2A filled with the filter material 2B through the pores 2AC.

In the cartridge for a water purifier of the present invention, an appropriate number of baffles 4 may be arranged on the water purification layer 3 (see FIG. 4). The baffle plate 4 has a function of temporarily blocking water such as tap water flowing in the cartridge body 1.
Using materials such as metal, synthetic resin, wood, etc., the thickness is 3
It is made as thin as possible as long as the strength that can withstand the pressure of A or the active water material 3B can be maintained. The baffle plate 4 may be formed to have a diameter such that the outer end is in close contact with the inner wall of the cartridge body 1, and an appropriate number of small-diameter holes 4A may be formed in the plate surface to allow water to pass therethrough.

A side plate 4B is planted on the upper surface of the baffle plate 4 so as to partially open around the hole 4A in order to adjust the amount of water passing through the hole 4A, and a lid plate 4C is mounted on the side plate 4B. Cover it. The side plate 4B has, for example, a hole 4
When A is rectangular, it may be mounted so that one side is opened to surround three sides, and when A is round, about 1/2 to 1/5 is opened to surround the rest. The amount of water passing through the hole 4A is determined by the height of the side plate 4B and the size of the opening area.

When a plurality of baffle plates 4 are used, a through hole is made in the center of the baffle plate 4 and a column 4D having an appropriate diameter and length is fitted therein. May be inserted into the through-holes of the baffle plate 4, and the necessary number may be connected and used by repeating this in sequence.
The present invention is not limited to this, and it may be simply inserted horizontally into the purified water layer 3 without using the through-hole and the column 4D.

The cartridge for a water purifier according to the present invention has the structure described above, and operates as follows. First, the water from the water supply source is supplied into the cartridge main body 1 through the water supply pipe 14 and the water supply hole 1CA in the bottom 1C of the cartridge main body 1. The supplied water rises in the purified water layer 3, that is, for example, the water purification material 3A and then the activated water material 3B to elute minerals into the water from which impurities have been removed. When the baffle plate 4 is placed in the purified water layer 3, the rising momentum of the water is reduced by the baffle plate 4, and the water temporarily stays below the baffle plate 4, so that the water The contact time with the purified water layer is maintained longer.

The water in which the impurities are removed in the purification water layer 3 and the elements such as the mineral components are dissolved then flows into the filter tube 2A through the pores 2AC, and the filter layer such as the hollow fiber membrane inside the filter tube 2A. 2 and the impurities are removed by filtration. The water thus treated then rises through the drain hole 1BA opened in the lid 1B of the cartridge body 1, passes through the drain pipe 13, and is used for drinking or the like.

The cartridge for a water purifier according to the present invention comprises:
It is also possible to arrange an ultraviolet irradiation device in the filter tube 2A, that is, to use the filtration layer 2 as an ultraviolet irradiation layer to perform a sterilization treatment of water.

[0020]

According to the cartridge for a water purifier of the present invention, since the residence time of water is lengthened, the water purification capacity can be maintained at a high level. Is formed in an annular shape that looks concentric from above, so that there is an advantage that pressure loss does not occur in the purified water layer, and the life of the cartridge can be kept long.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a cartridge for a water purifier according to the present invention.

FIG. 2 is a vertical sectional side view of a main part of the cartridge for a water purifier of the present invention.

FIG. 3 is a perspective view of a filtration layer used in the cartridge for a water purifier of the present invention.

FIG. 4 is a perspective view of a baffle plate used in the cartridge for a water purifier of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge main body 1A Body 1B Lid 1BA Drain hole 1C Bottom 1CA Water supply hole 11 Main body upper part 12 Main body lower part 13 Drain pipe 14 Water supply pipe 2 Filtration layer 2A Filter cylinder 2AA Upper part 2AB Lower part 2AC pore 2B Filter material 3 Purifying water layer 3A Water purification material 3B Active water material 3C Non-woven fabric 4 Baffle plate 4A Hole 4B Side plate 4C Cover plate 4D Column

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C02F 1/68 520 C02F 1/68 520P 530 530C 540 540A 540D F-term (Reference) 4D006 GA03 GA06 HA01 HA71 HA91 KB91 KB12 MA01 PA02 PB06 PC52 4D024 AA02 AB04 AB11 BA02 BB02 BC02 CA04 CA11 DB05 DB26

Claims (1)

[Claims] 1. An interior having a small-diameter filtration layer and a large-diameter purified water layer surrounding the filtration layer and extending downward, the purified water layer comprising a water purification layer and / or an active water layer. And a water purifying water cartridge, wherein water is moved upward from below in these layers.