JPH1085729A - Water purifying cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a cartridge containing hollow yarn membranes by forming a water flow route by arranging activated carbon and hollow yarn membranes in this order from the upstream side to the downstream side between a water flow inlet and an outlet formed in the open end of a one side closed cylindrical body and moreover installing a movement suppressing member for the activated carbon. SOLUTION: A water purifying cartridge 5 to be attached to a body 1 in freely detachable manner has a water inlet 5a and a water outlet 5b and the body 1 is to be attached to a faucet 3 in freely detachable manner. The water inlet 5a and the water outlet 5b are communicated respectively with an inlet route 1d and an outlet route 1e of the body 1. The outside case 5e of the cartridge 5 is formed into a cylindrical shape of which one end is closed and the other end is opened and a hollow yarn membrane case 9 is installed in the inside and hollow yarn membranes 6 are housed in the case 9. Granular coconut husk-derived activated carbon 7 is housed in the outside of the hollow yarn membrane case 9. Porous plates 10, 11 are so arranged as to form an upper and a lower end faces of the activated carbon 7 and the movement of the activated carbon is suppressed. Consequently, a water purifying cartridge containing hollow yarn membranes 6 can be miniaturized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purification cartridge for purifying drinking water such as tap water at home.

[0002]

2. Description of the Related Art As this kind of water purification cartridge, as shown in Japanese Patent Application Laid-Open No. 60-179187, a water purification cartridge is detachably mounted on a body, and a water inlet and a water inlet are provided below the water purification cartridge. A water outlet, provided with an inlet passage and an outlet passage communicating with the water inlet and the water outlet in the body, accommodating activated carbon in a water purification cartridge, and a filter disposed on the water outlet side of the activated carbon. Is known.

[0003]

However, such a water purification cartridge does not consider the treatment of water with activated carbon and a filter that uses a hollow fiber membrane as a treatment material.

SUMMARY OF THE INVENTION It is an object of the present invention to have a structurally compact,
It is to provide a novel water purification cartridge using a hollow fiber membrane as a treatment material.

[0005]

A feature of the present invention is that in a water purification cartridge having a water inlet and a water outlet and having a water purification treatment material disposed therein, the water purification cartridge has a circular cross section. The water purification cartridge is formed in a sealed structure by providing the water purification inlet and the water circulation outlet at one end of the water purification cartridge, and closing the other end with a cap. A water passage from the inlet to the water outlet is formed, and the water purification treatment material is disposed in the water passage in the order of the hollow fiber membrane downstream of the activated carbon as the water purification treatment material, and before and after the activated carbon. A movement suppressing member for suppressing movement of the activated carbon is disposed on the inner surface of the cap as a part of the water passage, and water flowing into the water purification cartridge from the water inlet is the water. The water purifying cartridge is configured to flow out of the water outlet through a passage.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIGS.
This will be described with reference to FIG.

The body 1 of the water purifier is detachably attached to a faucet 3 via a connecting portion 2. The body 1 has a central passage 1a, in which a switching valve 4 is housed. The switching valve 4 switches the faucet communication passage 1b between a source water discharge passage 1c and an inlet passage 1d.

The water purification cartridge 5 is detachably attached to the body 1, and has a water inlet 5a and a water outlet 5b on the lower surface thereof.

The water inlet 5a is connected to an inlet passage 1d of the body 1, and the water outlet 5b is connected to a purified water outlet passage 1e of the body 1.

An outer case 5e constituting the water purification cartridge 5 is formed in a cylindrical shape with one end closed and the other end open. A hollow fiber membrane portion for accommodating the hollow fiber membrane 6 is formed in the outer case 5e. An inner case, here a hollow fiber membrane case 9 is accommodated, and an activated carbon part accommodating the granular coconut shell activated carbon 7 is formed in a space between the outer case 5e and the hollow fiber membrane case 9 around the inner case. I have.

The perforated plates 10 and 11 are arranged so as to form the upper and lower end surfaces of the activated carbon 7, and serve to suppress the movement of the activated carbon 7.

The perforated plate 11 is disposed in the outer case 5e, and is provided on the outer periphery of one end of the hollow fiber membrane case 9. Further, the outer periphery of the other end of the hollow fiber membrane case 9 is
e supported by a hollow fiber membrane case supporting portion 5f formed inside. The hollow fiber membrane case supporting portion 5f is fixed to the outer case 5e in a water-tight manner, and isolates the water outlet 5b from the activated carbon portion.

A check valve 8 is disposed between the activated carbon 7 and the water inlet 5a, and the check valve 8 closes the water inlet 5a by its own weight. Water reaches the activated carbon 7 from the gap.

The upper ends of the hollow fiber membrane 6 and the activated carbon 7 are almost flush with each other, and are communicated with each other via a water passage which is an upper space 5c. Therefore, the upper end of the hollow fiber membrane 6 is on the water inlet side.

The upper wall of the water purification cartridge 5 is provided with a transparent cap 5d. That is, the outer case 5e
A transparent cap 5d is fixed to the open portion of the lens, and the cap 5d has a concave shape. still,
From the above, the outer case 5e is naturally opaque.

The hollow fiber membrane 6 is bent at the upper end.

A cover 12 is detachably attached to the body 1 so that the water purification cartridge 5 is pressed against the body 1.

In such a water purifier, when the switching valve 4 is set to the source water side, the source water can be taken out of the faucet 3 directly to the outside through the raw water discharge passage 1c.

When the switching valve 4 is set to the water purification side, the raw water flows from the faucet 3 through the inlet passage 1d to the water inlet 5a of the water purification cartridge 5, and the water pressure is applied to the check valve 8 so that the check valve 8 receives the water. After floating, the chlorine odor and dirt are adsorbed to the activated carbon 7 through the activated carbon 7, and then the hollow fiber membrane 6 is passed through the water passage 5c.
The germs are removed by flowing from the upper end side, and then can be taken out as purified water to the outside through the water passage outlet 5b and the purified water outlet passage 1e.

According to such a water purification cartridge, the inner case portion in which the hollow fiber membrane is disposed is provided inside the outer case portion constituting the water purification cartridge, and the activated carbon is further disposed between the inner case portion and the water outlet. Since the isolation portion for isolating the activated carbon portion in a watertight manner is provided in the outer case, a small water purification cartridge using a hollow fiber membrane can be obtained.

[0021]

According to the present invention, (1) the pressure resistance is improved because the cross section of the water purification cartridge is formed in a circular shape, and (2) a water inlet and a water outlet are provided at one end of the water purification cartridge. Since the water purification cartridge has a sealed structure by closing the other end with a cap, contact with the outside air is cut off except for the water inlet and the water outlet, and the water purification cartridge becomes sanitary. A water passage from the water to the water outlet is formed, and in the water passage, a relatively large garbage etc. is trapped by the activated carbon as water purification treatment material is arranged downstream of the activated carbon in the order of the hollow fiber membrane as the water purification treatment material The life of the hollow fiber membrane is extended because fine dust and various germs are captured by the hollow fiber membrane. (4) Since the movement suppressing member for suppressing the movement of the activated carbon is disposed before and after the activated carbon, the hollow fiber membrane is moved to the hollow fiber membrane. Activated carbon is transferred (5) Since the inside of the cap is formed as a part of the water passage, the water passage area of the hollow fiber membrane can be secured, so that the flow of water can be made smooth. Thus, a comprehensive effect required for the water purification cartridge can be obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a water purifier equipped with a water purification cartridge of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a longitudinal sectional view of a single water purification cartridge of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Connection part, 3 ... Water faucet, 4 ... Switching valve, 5 ...
Water purification cartridge, 5e outer case, 6 hollow fiber membrane, 7 activated carbon, 8 check valve, 9 hollow fiber membrane case, 1
0, 11: perforated plate, 12: cover.

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[Procedure amendment]

[Submission date] November 13, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

Feature of the present invention SUMMARY OF THE INVENTION may, and a water flow inlet and water flow outlet, in water purification cartridge arranged water purification treatment material therein, the water purification cartridge
Has a closed section with a circular cross section and one end closed.
An opening having an open end at the other end;
The water inlet and the water outlet near the blockage
The opening is fixed and closed by a cap.
And the water purification cartridge is hermetically sealed.
While the cartridge is in use, outside the water purification cartridge
No water passage through which water passes is formed in the
And inside the water purification cartridge including the water outlet
A water passage through which water passes is formed, and the water purification cartridge is formed.
A water purification treatment material is disposed in the order of a hollow fiber membrane downstream of the activated carbon in the water passage formed in the water passage along the flow direction of the water, and suppresses movement of the activated carbon before and after the activated carbon. the movement restraining member is disposed, before the inside of the cap
The water purification treatment material is formed as a part of the water passage where it does not exist, and the water flowing into the water purification cartridge from the water passage inlet flows out of the water passage outlet through the water passage. A water purification cartridge characterized in that:

Continuing from the front page (72) Inventor Johzo Sankada 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside the Taga Plant of Hitachi, Ltd. No. 1 Inside the Taga Factory of Hitachi, Ltd. (72) Inventor Kenji Saruta 1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Prefecture

Claims (1)

[Claims] 1. A water purification cartridge having a water inlet and a water outlet and having a water purification treatment material disposed therein, wherein a cross section of the water purification cartridge is formed in a circular shape, and one end of the water purification cartridge is provided. The water inlet and the water outlet are provided, and the water purification cartridge is sealed by closing the other end with a cap, and a water passage from the water inlet to the water outlet is provided in the water purification cartridge. Formed, arranged in the order of hollow fiber membranes downstream of the activated carbon as the water purification treatment material along the flow direction of water in the water passage, and movement suppression for suppressing movement of the activated carbon before and after the activated carbon A member is disposed, an inside of the cap is formed as a part of the water passage, and water flowing into the water purification cartridge from the water passage inlet passes through the water passage and the water passage outlet Water purification cartridge is characterized in that a configuration in which al outflow.