JPH09271765A - Water purifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain germ-free water during water supply without enlarging a waster purifier by connecting the bottom of a storage container to a hollow fiber membrane filter via a water feed pump and arranging the arrayed direction of hollow fiber membranes in the horizontal direction. SOLUTION: A bundle of the hollow fiber membranes 11 is arrayed in a cylindrical casing 10 and at an outflow side of water it is adhesively fixed to the inner face of the casing 10 with potting resin 12 to constitute the hollow fiber membrane filter 8. A water feed port 9 is provided downwardly and the tip is protruded beyond a water feed port 17 and the hollow fiber membrane filter 8 are arranged horizontally just before the water feed port 9 and besides at a right angle to the water feed port 9. Thus, the distance between the hollow fiber filter 8 and the water feed port 9 is very short and a generation of bacteria hardly happens. Then by driving a water feed pump, the water in the storage container is fed to the hollow fiber membrane filter and is removed bacteria and the germ-free water be obtained from the water feed port 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier for beverages and the like.

[0002]

2. Description of the Related Art As an example of a conventional water purifier, a tubular container is installed in an aquarium having an opening that can be opened and closed, a submersible pump is installed at the bottom, and a porous natural stone is installed at the top. There is one in which the water sent by the submersible pump passes through the filtering device and is circulated again in the water tank. Then, the filtered water is supplied from time to time through a faucet provided at the bottom of the water tank. However, since this water purifier allows water to be supplied from the faucet by water pressure in the water tank during water supply, the water supply amount is not constant and unstable depending on the amount of water in the water tank. Also, if it is not operated for a while, various bacteria may enter the water in the water tank, which is not hygienic.

As another water purifier, a raw water supply container, a filtration / mineral water generator and a storage container are separately constructed,
This is stored in the machine body, tap water is set in the raw water supply container, this tap water is pumped and passed through the filtration / mineral water generation device to purify and extract the mineral content, and the storage container It is intended to be stored in. However, this also has a drawback, and since the raw water supply container, the filtration / mineral water generator and the storage container are separately configured in this water purifier, the size of the machine becomes large.

In order to solve these drawbacks, JP-A-7-
There is a technique disclosed in Japanese Patent No. 265873. This water purifier is provided with a storage container housed in the body, a filtration / mineral water generator provided in the storage container, and a hollow fiber membrane filter, and is purified by a circulation pump and a water supply pump and contains a mineral content. The supplied water is supplied to the water supply port. According to this water purifier, it is possible to reduce the size and weight of the machine body to generate desired delicious mineral water, and further, to supply a desired amount of mineral water by the water supply pump.

On the other hand, however, this water purifier has a long pipe line between the hollow fiber membrane filter and the water supply port, and since air is contained in the pipe line when it is not used, bacteria in the air are contained in the pipe wall. Adheres to and propagates. Therefore, at the time of the next water supply, even if the water in the storage tank passes through the hollow fiber membrane and becomes aseptic, it will pass through this pipe line, so that there is a problem that water is supplied in a state containing bacteria. This can be done by draining to some extent, but the amount of water in the container decreases and it is wasteful, which is not economical.

As a solution to this point, there is a technique described in Japanese Utility Model Registration No. 3006759. In this proposal, a hollow fiber membrane filter is vertically provided immediately before the water supply port, but this lengthens the length of the water supply port, and the tip of the water supply port reaches the lower part of the storage container. Often lower than the water level. In this case, water leaks from the water supply port due to the siphon principle. Further, since water easily stays in the hollow fiber membrane filter provided at the water supply port, there is also a problem that the water falls due to gravity.

[0007]

SUMMARY OF THE INVENTION The present invention provides a water purifier in which aseptic water can be obtained without increasing the size of the water purifier, preventing water from leaking, and discarding the water.

[0008]

The gist of the present invention is as follows. That is, the main body of the water purifier, a storage container housed in the main body, a purifying cylinder connected to the storage container for purifying the water in the container, and a downward connecting with the storage container for supplying water to the outside of the water purifier. A hollow fiber membrane filter is provided immediately before the water supply port, the bottom of the storage container and the hollow fiber membrane filter are connected through a water feed pump, and the hollow fiber membrane filter is extended. The present invention relates to a water purifier characterized by being installed horizontally. It should be noted that it is preferable to fill the purification column with a mineral water producing material.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION As a concrete embodiment of the present invention, for example, a purifying cylinder is preferably provided in a storage container,
The bottom of the storage container and the bottom of the purification tube are connected by a circulation pump. Then, when water is poured into the storage container and the circulation pump is driven, the water in the storage container is pressure-fed into the filtration / mineral water generation device through the circulation port, and is jetted into the storage container from the jet port provided in the upper portion for circulation. . During this time, residual chlorine and impurities contained in the tap water are removed, and minerals are eluted to produce delicious mineral water.

When drinking mineral water in a storage container,
The water supply pump is operated, and the mineral water in the storage container is supplied from the discharge port, the water supply pipe, the hollow fiber membrane filter, and the water supply port. However, even if various bacteria are mixed in the mineral water, it is finally removed by the hollow fiber membrane filter, so that sanitary and safe mineral water is supplied. Needless to say, if the filtration / mineral water generator and the hollow fiber membrane filter are detachable, it is convenient for cleaning and replacement.

The hollow fiber membrane filter has a lengthwise direction (direction in which water flows) oriented horizontally with respect to the downwardly directed water supply port. For this reason, the position of the water supply port is not lowered by this filter part, so that the occurrence of the siphon phenomenon is eliminated, the invasion and propagation of various bacteria are eliminated even when the water supply is stopped, and the hollow fiber membrane filter The structure makes it difficult for the water staying at − to fall due to gravity.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a vertical sectional view for explaining the outline of a water purifier of the present invention. In the figure, reference numeral 1 is a water purifier body, which is composed of a water purifier body 2 and an upper lid 3. A tap water storage container 4 has a filtration / mineral water generator 5 installed therein. The water in the storage container 4 is pumped by the pump 6
Further, the water is sent into the filtration / mineral water generation device 5, flows out from the ejection port into the storage container 4, and circulates to become mineral water.

Although not shown, the filter / mineral water generator 5 is filled with various filters, activated carbon, barley stone, natural coral and the like. Various filters are fine particles, activated carbon mainly removes chlorine from tap water, barite stone and natural coral elute minerals, residual chlorine and impurities contained in tap water are removed, calcium, magnesium, sodium , Potassium and other minerals elute,
Delicious mineral water is produced.

As described above, the mineral water circulated in the storage container 4 and the filtration / mineral water generator 5 and extracted by extracting the mineral component is driven by the water supply pump 7 to drive the hollow fiber membrane filter-8. To be sterilized and supplied from the water supply port 9.

FIG. 2 is an enlarged sectional view showing the relationship between the cassette-shaped hollow fiber membrane filter 8 and the water supply port 9, and FIG. 3 is a sectional view taken along the line AA. The hollow fiber membranes 11 are arranged in a bundle in a cylindrical casing 10, and the potting resin 12 is bonded and fixed to the inner surface of the casing 10 on the water outflow side to form a hollow fiber membrane filter 8. It As shown in the figure, the water supply port 9 is welded at a portion, and the casing 10 is sealed by an O-ring 13. As described above, the hollow fiber membrane filter-8 is formed in a cassette shape, and the water supply path (pipe) 1 on the water purifier side 1
It is detachably fitted to the receiving member 15 provided at the upper end of 4, and at this time, it is fitted via the O-ring 16.

The water inlet 9 is naturally provided downward,
The tip projects from the water injection port 17 of the water purifier. The most distinctive feature of the hollow fiber membrane filter 8 is that it is arranged immediately in front of the water supply port 9 and horizontally to the water supply port 9 at right angles to the water supply port 9. Since this is done, the distance between the hollow fiber membrane filter 8 and the water supply port 9 is extremely short, and almost no germs are found here. Further, since the hollow fiber membrane filter-8 is arranged at a right angle to the water inlet 9, the water inlet 9
The feature is that the position of is kept high and the siphon phenomenon does not occur. Since the hollow fiber membrane filter-8 was placed horizontally, it smoothly flows through the hollow fiber membrane filter due to the relationship with residual air, and the flow rate is 1
It was also about to be improved.

[0017]

EFFECTS OF THE INVENTION Since the present invention has the above-mentioned structure, the water purifier is miniaturized, and mineral water containing few germs can be obtained in the water supply, and its practical value is extremely high.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view for explaining the outline of a water purifier of the present invention.

FIG. 2 is an enlarged sectional view showing a relationship between a hollow fiber membrane filter and a water supply port.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

[Explanation of symbols]

 1 ... water purifier body, 2 ... water purifier body, 3 ... upper lid, 4 ... tap water storage container, 5 ... filtration / mineral water generator, 6 ... circulation pump, 7 ... water supply pump, 8 ... Hollow fiber membrane filter, 9 ... Water supply port, 10 ... Casing, 11 ... Hollow fiber membrane, 12 ... Potting resin, 13 ... O-ring, 14 ... Water supply on water purifier side Route (pipe), 15 ... Pipe receiving member, 16 ... O-ring, 17 ... Water inlet of water purifier.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location C02F 1/68 530 C02F 1/68 530B 540 540D 540A

Claims (2)

[Claims] 1. A water purifier main body, a storage container housed in the main body, a purification cylinder connected to the storage container for purifying the water in the container, and a water pipe connected to the storage container to the outside of the water purifier. A hollow fiber membrane filter is provided immediately before the water supply port, the bottom of the storage container and the hollow fiber membrane filter are connected via a water feed pump, and the hollow fiber membrane filter is provided. A water purifier characterized in that the extending direction of − is arranged horizontally. 2. A water purifier having a purification cylinder filled with a mineral water producing material.