JPH057387U - Cartridge for water purifier - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a cartridge for a water purifier that is strong, acts as a primary filter when water is passed, and can prevent the activated carbon layer from falling off. [Constitution] In a water purifier cartridge comprising a combination of a hollow fiber membrane and an activated carbon layer, the bottom of the cartridge, which is an inlet to the raw water cartridge, is made of a porous body obtained by baking resin granules such as polyethylene and polypropylene into a sheet. Consists of a sintered filter. 1 sintered filter
It has a mesh of 0～150Myu, back pressure when passed through the air in the original pressure of 1 kg / cm ² is 0.08~0.3kg / cm ^2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water purifier cartridge.

[0002]

[Prior Art]

 In recent years, as a water purifier, a water purifier composed of activated carbon or an activated carbon layer of activated carbon fibers and a hollow fiber membrane module is becoming popular. In these water purifiers, a mechanism that removes chlorine odors and mold odors by passing raw water through the cartridges as an integrated cartridge of the above-mentioned structure and further removes various germs, red rust, and organic substances. Is said. Therefore, when either the activated carbon layer or the hollow fiber membrane module loses its effectiveness, this cartridge will be replaced.

There are pressure-resistant type and non-pressure-resistant type of this cartridge, and the latter can reduce the thickness of the housing constituting the cartridge as compared with the former, so that the weight can be reduced and water can be passed. Since the route is simple, the structure is not complicated and it is suitable for industrial production.

Usually, raw water passes through the activated carbon layer and the hollow fiber membrane module in this order from the bottom of the cartridge, so that the bottom of the cartridge has a plurality of holes through which water can pass, and a nonwoven fabric is formed on the upper or lower surface of the bottom. Or, a mesh-like woven fabric with fine pores is fixed to prevent the activated carbon layer from falling out of the cartridge.

[0005]

[Problems to be solved by the device]

 However, in the case of non-woven fabric, a step of fixing to the cartridge bottom member is required, and in the case of mesh-like woven fabric, it is easily damaged and is not suitable as a structural member. Further, in the cartridge as described above, since the raw water passes only through the fine pores provided at the bottom, the water passage is limited, so the non-woven fabric or the mesh woven fabric with fine pores is quickly clogged with foreign matter in the raw water. This will result in a large water resistance. SUMMARY OF THE INVENTION The present invention provides a cartridge structure which is strong as a structural member in view of such deficiencies and which also has a function as a primary filter at the time of passing water to prevent the activated carbon layer from falling off.

[0006]

[Means for Solving the Problems]

The gist of the present invention is a water purifier cartridge comprising a combination of a hollow fiber membrane and an activated carbon layer, and a sintered filter having a porous body formed by baking resin granules into a sheet at the bottom of the cartridge, which is the inlet of the raw water cartridge. in the structure, characterized in that the filter has a mesh of 10～150Myu, back pressure when passed through a source pressure of the air 1 kg / cm ² is 0.08~0.3kg / cm ² The cartridge for a non-pressure resistant water purifier.

The present invention will be described below with reference to the drawings.

FIG. 1 shows a horizontal cross-sectional view of an example of a water purifier in which a cartridge made of a combination of a hollow fiber membrane module and an activated carbon layer is a non-pressure resistant type. The hollow fiber membrane passes through the gap formed by the container (2) and the cartridge (3), flows into the cartridge (3) through the gap formed by the cartridge cover (4) and the cartridge bottom, and passes through the activated carbon (5). Go to Shimizu mouth 7 via (6). Therefore, in this case, the container (2) itself including the cartridge cover (4) has a pressure resistant structure.

FIG. 2 is a sectional view of the cartridge shown in FIG. 1 according to the present invention.

In FIG. 2, the raw water flowing in from the arrow B passes through the bottom lid (9) formed in one piece in the bottom lid member (8).

At this time, it is needless to say that the action of the bottom lid is to act as a primary filter for the raw water that flows in, but it is necessary to prevent the activated carbon (5) from falling out of the cartridge. Furthermore, since the bottom cover will resist the inflowing raw water, it is necessary to use a material with as little pressure loss as possible.

In the present invention, a bottom cover material is a sintered filter obtained by baking and hardening into a sheet under appropriate conditions such as particle size and mixing ratio of resin particles such as polyethylene and polypropylene.

The sheet-shaped resin sintered filter is punched into various shapes such as a circular shape, a square shape, and an elliptical shape, and is used as a bottom lid. Further, the inventor of the present invention uses an activated carbon particle having a particle size of 20 mesh to 150 mesh and conducts a drop test under various conditions. If the opening of this baking filter is in the range of 10 to 150 μ, the drop of the drop occurs. I found nothing.

Further, the pressure loss in the opening range is set to be relatively low by allowing air having an original pressure of 1 kg / cm ² to pass and the back pressure thereof being in the range of 0.08 kg / cm ^{2 to} 0.3 kg / cm ^2. is there.

In addition, since the non-woven fabric of the punched-out sintered filter is different from the woven mesh of pores in that it has rigidity and excellent shape stability, it is easy to handle and the bottom cover member (8) is molded with resin. Insert molding can be easily performed and can be integrated into one body.

[0016]

[Effect of the device]

 The cartridge of the present invention has the following excellent effects.

(1) By using the resin porous sintered filter at the bottom of the cartridge, it is possible to firmly prevent the activated carbon from falling off.

(2) A low pressure loss can be suppressed.

(3) The sintered filter has rigidity and excellent handleability.

(4) The sintered filter can be easily insert-molded into the cartridge bottom lid member and can be integrated into one body, and therefore the cartridge assembling process can be simplified.

(5) Since the entire surface of the sintered filter section can be used as a primary filter, it has a long service life against clogging by foreign matter in raw water.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example in which a non-pressure resistant cartridge is used in a water purifier.

FIG. 2 is a sectional view of a cartridge according to the present invention.

[Explanation of symbols]

 1 Switching Lever 2 Container 3 Cartridge 4 Cartridge Cover 5 Activated Carbon 6 Hollow Fiber Membrane 7 Fresh Water Port 8 Bottom Cover Member 9 Bottom Cover Made of Sintered Filter

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location C02F 9/00 Z 6647-4D

Claims (1)

[Claims for utility model registration] 1. In a water purifier cartridge comprising a combination of a hollow fiber membrane and an activated carbon layer, a resin granule is baked into a sheet at the bottom of the cartridge, which is the inlet of the raw water cartridge. And a back pressure of 0.08 to 0 when air having an original pressure of 1 kg / cm ² is passed through the sintered filter. A cartridge for a water purifier, which has a weight of 3 kg / cm ² .