JPH1085730A - Water purifying cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a cartridge containing hollow yarn membranes by forming the cartridge into a cylindrical shape having one closed end and the other open end, forming a water inlet and an outlet in the open end, communicating a first water flow route containing an activated carbon part with the inlet, and forming a second water flow route containing between a cap and the water flow route. SOLUTION: A body 1 of a water purifying apparatus to be connected with a faucet 3 has a center route 1a for housing a switch valve 4 and a faucet communicating route 1b is switched to a source water discharging route 1c and to an inlet route 1d. The 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. A hollow yarn membrane case 9 to house hollow yarn membranes 6 is housed in the inside of the outside case 5e and fixed water tightly in the outside case 5e with a hollow yarn membrane supporting part 5f. Consequently, the water outlet 5b is communicated and at the same time the hollow yarn membranes are isolated from activated carbon 7. Granular coconut husk activated carbon 7 is put in the outside of the hollow yarn membrane case 9 and communicated with the water inlet 5a. Passing through the activated carbon 7 and the hollow yarn membranes 6, water is purified.

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 is provided, an inlet passage and an outlet passage communicating with the water inlet and the water outlet are provided in the body, activated carbon is housed in a water purification cartridge, and a filter is arranged 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 exit at one end of the water purification cartridge, and closing the other end with a cap. An activated carbon portion connected to an inlet is provided, so that water flowing through the activated carbon portion flows from the water inlet to the cap, and a hollow fiber membrane portion connected to the water outlet in the water purification cartridge. And water flowing through the hollow fiber membrane portion is caused to flow from the cap toward the water-flow outlet, and a space inside the cap from the water-flow inlet to the cap. Forming a direction change part for changing the direction of the water flowing toward the water flowing from the cap toward the water flow outlet, wherein the water flowing into the water purification cartridge from the water flow inlet is the activated carbon part and the hollow fiber; The water purification cartridge is characterized in that the membrane portion is configured to flow in the opposite direction and flow out of the water outlet.

[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.

[0007] The body 1 of the water purifier is removably attached to a faucet 3 via a connecting portion 2.

The body 1 has a central passage 1a,
A switching valve 4 is housed therein, and the switching valve 4 switches and connects the faucet communication passage 1b to the source water discharge passage 1c and the inlet passage 1d.

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

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 function 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. 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 they are communicated with each other via a water passage as 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 formed by bending at the upper end.

Further, the water purification cartridge 5 has a body 1
A cover 12 is detachably attached to the body 1 so as to press against the side.

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 from 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 to the water inlet 5a of the water purification cartridge 5 through the inlet passage 1d. 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.

Here, as can be seen from the drawing, activated carbon 7
The water flowing through the hollow fiber membrane 6 is made to flow from the water inlet 5a toward the cap 5d.
d to the water outlet 5b, and the upper space 5c is a direction in which water flowing from the water inlet 5a toward the cap 5d is changed to water flowing from the cap 5d to the water outlet 5b. It serves as a diversion department.

Therefore, the water flowing into the water purification cartridge from the water inlet 5a flows through the activated carbon 7 and the hollow fiber membrane 6 in the opposite directions, and flows out from the water outlet 5b.

[0023]

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 closed 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 purifying cartridge becomes sanitary. A water reversing portion is formed that turns the water flowing from the water inlet toward the cap to the water flowing from the cap toward the water outlet, and the water flowing through the activated carbon portion flows from the water inlet toward the cap to form a hollow fiber membrane. Since the water flowing through the section flows from the cap toward the water outlet, it is possible to shorten the length of the water purification cartridge and make it compact. It is possible to achieve the results.

[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 water outlet are located near the blockage
To fix and close the opening with a cap.
Therefore, the water purification cartridge has a sealed structure,
While using the water purification cartridge, the water purification cartridge
No water passage through which water passes is formed outside the
Water in the water purification cartridge including the water inlet and the water outlet
Is formed, and the water passage is provided with the water passage.
Having an activated carbon part connected to the inlet,
A first water passage through which water flows toward the cap;
Having a hollow fiber membrane connected to the water outlet
A second water passage through which water flows toward the water outlet;
Formed in the space inside the cap, from the water inlet
The water flowing towards the cap from the cap
Said activity diverting to water flowing towards said water outlet
Formed from a third water passage where no charcoal and the hollow fiber membrane are present
Is, water flowing in the water purification cartridge from said water flow inlet water purification cartridge is characterized in that a structure which flows out from the water passage outlet flows the hollow fiber membrane unit and the activated carbon unit in the opposite direction It is in.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Jozou Mikatada 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside the Taga Plant of Hitachi, Ltd. 1-1 1-1 Cita Plant, Hitachi, Ltd. (72) Inventor Kenji Saruta 1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside Taga Sangyo Co., Ltd.

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 other end is closed by a cap to make the water purification cartridge a sealed structure, and an activated carbon portion connected to the water inlet is provided in the water purification cartridge, Water flowing through the activated carbon portion is allowed to flow from the water inlet to the cap, and a hollow fiber membrane portion connected to the water outlet is provided in the water purification cartridge, and water flowing through the hollow fiber portion is provided. Makes the water flow from the cap toward the water outlet, and the water flowing from the water inlet toward the cap into the space inside the cap. Forming a direction change portion that changes the direction of the water flowing from the pump toward the water flow outlet, the water flowing into the water purification cartridge from the water flow inlet flows in the activated carbon portion and the hollow fiber membrane portion in opposite directions. A water purification cartridge, wherein the water purification cartridge is configured to flow and flow out of the water outlet.