JPH06296962A - Purified water treating device - Google Patents

Abstract

PURPOSE:To cope with the difference in the state of city waters such as the dust content and the strength of the bleaching powder odor or with the difference in taste of users to minimize the bleaching powder odor, etc. CONSTITUTION:Three cartridges 5 to 7 of the same shape are detachably housed in a treating device main body consisting of a main case 1 and an upper case 3. The cartridges are connected to one another so that the supplied city water ia allowed to flow in series. The cartridge contains activated carbon or a filter medium such as a hollow-fiber membrane. The cartridges contg. an appropriate filter medium in accordance with the state of city water are housed in the main body in appropriate order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purification apparatus for purifying tap water, and more particularly to a household water purification apparatus.

[0002]

2. Description of the Related Art In recent years, the water quality of tap water sources such as rivers and lakes has deteriorated, and the amount of chlorine used for removing, disinfecting and sterilizing organic substances and ammonia nitrogen has increased. Chalk smell is strong. In addition, algae are generated due to eutrophication of water quality, and the mold odor due to this is exacerbated. The odor and musty odor of tap water are remarkable in and around the city. Against the background of the above situation, a water purification apparatus for removing unpleasantness of tap water, harmful offensive odors, and foreign substances is becoming widespread in general households.

Most of the above-mentioned purified water treatment devices use activated carbon and a hollow fiber membrane filter. After odorous substances and organic substances in tap water are adsorbed and removed by plant activated carbon or lime activated carbon used as activated carbon, 0.1 μm is removed. It is designed to be filtered by a hollow fiber membrane filter having a degree of fine pores.

[0004]

By the way, in the activated carbon and hollow fiber membranes used as a filtering material in the filtration section, the activated carbon adsorbs residual chlorine and organic substances such as relatively small odorous substances due to its porous pore structure. On the other hand, hollow fiber membranes are used for the purpose of filtering out relatively large organic substances, bacteria, and rust generated in water pipes. At present, different types of filter media having different functions as described above are made into a cartridge as one filter unit. For this reason, the user cannot select the type and amount of the filter medium, and the difference in the state of individual tap water, such as the amount of dust in the tap water and the strength of the odor, and the odor of the odor can be eliminated. It was not possible to fully cope with the differences in user preferences, such as wanting to reduce the number as much as possible.

The present invention eliminates the above-mentioned drawbacks, and an object of the present invention is to provide a water purification apparatus capable of sufficiently coping with differences in individual tap water conditions and differences in user preferences. It is a thing.

[0006]

In order to solve the above-mentioned problems, the water purification apparatus of the present invention uses a cartridge containing a filter medium such as activated carbon or a hollow fiber membrane to filter tap water. In the water purification apparatus, the treatment apparatus body of the water purification apparatus has a structure in which a plurality of predetermined numbers of cartridges having substantially the same shape can be detachably accommodated, and the predetermined number of cartridges accommodated are It is characterized in that the tap water supplied is connected to each other so as to flow in series. The cartridges of the same shape each have a water inlet and a water outlet, and the water inlet side has a connection structure with the water inlet of the processing apparatus main body or the water outlet of another cartridge, and the water outlet side has a connection structure. A connection structure with a water outlet of the processing apparatus main body or a water inlet of another cartridge may be provided.

[0007]

[Operation] In the water purification apparatus configured as described above,
It is possible to appropriately select cartridges having different types of built-in filter media, or cartridges having the same built-in filter media, and store them in an appropriate order. It is possible to sufficiently cope with the difference and the user's preference.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a sectional view showing an outline of a water purification device. In this figure, reference numeral 1 is a substantially cylindrical main body case, in which a water inlet pipe 2 is arranged and connected to a water faucet (not shown). A water outlet pipe 4 is rotatably arranged in the upper case 3. A plurality of cartridges 5 to 7 (three in the figure) having the same shape and containing a filter medium are housed in the outer casing formed of the main body case 1 and the upper case 3.
Each has a water inlet 8 and a water outlet 9. The water inlet 8 is connected to the water inlet 10 of the main body case 1 or the water outlet 9 of another cartridge through a packing 11 by a connecting structure such as a screw. The tap water passes through the water inlet pipe 2, passes from the first cartridge 5 to the third cartridge 7 to be purified, and then reaches the water outlet pipe 4. The first cartridge 5 contains coarse granular activated carbon as a filter medium, the second cartridge 6 contains fine granular activated carbon, and the third cartridge 7 contains a hollow fiber membrane.

The order in which the cartridges containing the filtering materials are stored can be appropriately selected depending on the difference in the state of each tap water and the preference of the user. Generally, it suffices to select the filtering material in the direction from the first cartridge 5 to the third cartridge 7 in the direction from the coarse to the dense, and when the purpose is to remove foreign matters and offensive odors, the above combination is used. You can choose.

By the way, the difference in the state of individual tap water is
Raw water is river, lake, groundwater, water purification method is sedimentation method, chemical method, high water tank such as condominium is installed in the route to the faucet, and what is the material of the water pipe of that route? It is caused by whether this water pipe changes over time. Cartridges that can be used range from prefilters with a high aperture ratio that incorporate non-woven fabrics to those that incorporate microporous hollow fiber membranes, and those that incorporate activated carbon have a wide range of choices, from large and small particle sizes to fibrous activated carbon. It is possible to have

The following may be considered as a usage mode of such a cartridge. In a situation where red rust in the water pipe and algae from the elevated water tank are observed, the prefilter is arranged as the first cartridge on the water inlet side, so that the filtering material for the second and third cartridges is provided. It is possible to prevent the change in the capacity of the cartridge at an early stage, and if only the first cartridge is replaced in a quick cycle, the capacity of the filter medium of the other cartridges can be fully exhibited. In addition, under strong odor and musty odor, a sufficient deodorizing ability can be obtained by using activated carbon with different particle size or shape (density) from the first cartridge to the third cartridge. To be demonstrated.

In the above-mentioned embodiment, the description has been made on the case where all the cartridges have the built-in filter medium, but a dummy cartridge having no built-in filter medium is also prepared, and when the contamination of tap water is small, the treatment is performed. Some of the plurality of cartridges housed in the apparatus body may be dummy cartridges. Further, in the case of a prefilter using a non-woven fabric or a cartridge containing a hollow fiber membrane filter, the case can be made transparent so that it is possible to easily grasp the standard of the replacement time. In addition, in this water purification device, when a new filter medium is put into practical use in the future, it can be used.

[0013]

EFFECT OF THE INVENTION The water purification apparatus constructed as described above,
It is possible to easily and inexpensively set the water purification capacity according to the purpose of the user and the state of the supplied water, and it is possible to use the different types of filter media by making full use of their respective performances. Less waste such as replacement is less likely to occur.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 1 Main body case 2 Water inlet pipe 3 Upper case 4 Water outlet pipe 5, 6, 7 Cartridge 8 Water inlet 9 Water outlet 10 Water inlet 11 Packing

Claims (2)

[Claims] 1. A water purification apparatus for filtering tap water using a cartridge containing a filter medium such as activated carbon or a hollow fiber membrane, wherein a main body of the water treatment apparatus is a plurality of predetermined numbers.
The structure is such that cartridges of substantially the same shape can be removably housed, and a predetermined number of the housed cartridges are connected to each other so that the supplied tap water flows in series. A water purification device. 2. The cartridges of the same shape each have a water inlet and a water outlet, and the water inlet side has a connection structure with a water inlet of the processing apparatus body or a water outlet of another cartridge, and a water outlet. The water purifying apparatus according to claim 1, wherein the side is provided with a connection structure with an outlet channel of the processing apparatus main body or a water inlet of another cartridge.