JPH03137983A - Natural flow and batch-like process for purifying water - Google Patents

Abstract

PURPOSE: To enable easy batchwise cleaning of water in an arbitrary place by disposing means for supporting first and second chambers and a filter housing in a position where the water flows from the first chamber into the second chamber through a filter layer by gravity.

CONSTITUTION: A filter cartridge 30 is hung down from a supporting member 28 fixed to a funnel-like vessel 26. This vessel 26 is provided with a taper angle A in the outside diameter part and is therefore, stably supported in the aperture of a pot 12, etc. When raw water is injected into the funnel-like vessel 26 from the hole 34 of the cap 32 of the vessel 26, the water is passed through the filter cartridge 30 by gravity and the contaminants, such as lead, aluminum and chlorine, included in the raw water are decreased by filter pads 56, 58, 60. This water flows down into the pot 12. A relatively large volume of the water is thus cleaned batchwise in an arbitrary place.

COPYRIGHT: (C)1991,JPO

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a water purification device using a gravity water supply method, and particularly,
The present invention relates to a drinking water purification and deodorization device suitable for removing or reducing lead, chlorine, aluminum, etc. from a certain amount of water used for food or drinking at home.

The present invention can be applied to, for example, glass bottles, coffee pots, teapots, bowls, cups, deep pots, water storage containers, and the like. In the following explanation, for convenience, the words ``po, ``to'' may be used to represent various types of containers.

[Conventional technology and problems] In recent years, the number of impurities that adversely affect the taste or safety of drinking water has increased, and drinking water is often contaminated with heavy metals such as lead, harmful compounds, or trace amounts of toxic compounds. This has become a problem. Lead can cause mental retardation in children. Recent reports have linked aluminum to Alzheimer's disease. In addition to metals, chlorine, which water operators add to disinfect water, is another contaminant in drinking water. Additionally, other trace impurities can give tap water an unpleasant taste or odor, and these impurities remain in foods or drinks made from tap water. Due to the increase in pollutants and contaminants contained in river water used as raw water,
The above problems are becoming more and more serious.

Removing lead, chlorine, aluminum, etc. from drinking water is a complex issue. For example, lead can enter drinking water from the solder used to connect copper pipes in domestic water pipes, but it is almost impossible to remove lead solder from existing homes for economic reasons. It is. In addition, since it is necessary to continue sterilizing tap water to prevent the spread of diseases such as epidemics, chlorine should not be removed until immediately before water is used for drinking. Therefore, it is important to develop low cost means to remove or significantly reduce lead, chlorine, aluminum, etc. contained in drinking water before it is used.

It is thought that drinking water used at home will continue to contain the above-mentioned contaminants for a long time, so it is important to provide water purification devices for home use. Examples of gravity gravity water purification systems are disclosed in US Pat. No. 4,306,971, US Pat. No. 4,695,379, and US Pat. There are also water purification devices that use line pressure to pass water through a filter; examples of this type of device are U.S. Pat.
It is disclosed in No. 89.

There are filters that can be attached to a water faucet and use water pressure, but sometimes you may want to purify drinking water in a place without a faucet. For example, you may want to purify a small amount of water to make a cup of coffee or tea on the seashore or on the terrace. In such places, it is desirable to be able to perform filtration using a gravity-based gravity flow water supply system without relying on water pressure. Additionally, people who are sensitive to pollution may want to filter their water to remove contaminants while traveling. There are many other reasons why one might want to purify relatively small amounts of water by filtration.

U.S. Pat. No. 4,306,971 shows a gravity flow filter system for batchwise treatment of relatively small volumes of water. U.S. Pat. No. 4,749,484 shows a gravity flow filter system for treating relatively large amounts of water. However, neither patent describes a filter that can reduce contaminants such as lead, chlorine, and aluminum. Accordingly, there is a need for a low cost filtration system that can remove these and other contaminants from relatively small or relatively large amounts of water for use in food or beverages.

In a typical water purification device, a replaceable cartridge is housed in a container that can be attached to, for example, a water faucet, and various filter elements are incorporated into the cartridge. This type of filtration cartridge relies on the flow path pressure of the supplied water to set the flow rate of water through the filter.

Therefore, when the same cartridge is incorporated into a gravity flow water system (where no flow path pressure is present), the water flow rate may be too low to adequately achieve filtration. For proper filtration, the residence time of water while passing through the filter is an important factor. Therefore, good results may not always be obtained when filters for pressurized water supply systems are used in gravity water supply systems. Also, conventional cartridge filters are not designed to remove relatively high concentrations of certain contaminants, particularly lead, chlorine, aluminum, and the like.

Certain contaminants tend to prevent water from passing through the layers of the filter media, which can shorten the useful life of the filter media. Accordingly, there is a need for a water purification system that includes a replaceable filter cartridge that has a high purification capacity and a long useful life.

An object of the present invention is to provide a low-cost gravity water purification system capable of removing or reducing contaminants contained in water, particularly lead, chlorine, aluminum, etc. It is an object of the present invention to use, in the water purification device, a replaceable filter cartridge that is simple, has a relatively low manufacturing cost, and has a long useful life, and to combine the water purification device with a common coffee brewer or the like. and configuring the water purification device to be suitable for batch purification of relatively small amounts of water or batch purification of relatively large amounts of water.

[Means for Solving the Problems] The present invention provides a first chamber for containing raw water, a second chamber for receiving filtered water, and a means for reducing contaminants such as lead, aluminum, and chlorine contained in the raw water. a filter housing housing a plurality of filtration layers including a first chamber, a second chamber and Provided is a device for purifying water batchwise using a gravity feed system, characterized by having means for supporting a filter housing.

The present invention also includes a funnel-shaped container that is non-porous and has a relatively large diameter at the top and gradually decreases in diameter toward the bottom, and a water purification cartridge that is removably attached to the container. There is an opening in the center and the edges of the opening are shaped to receive and support the water purification cartridge, and the housing of the water purification cartridge is a non-ventilated closed type with a raw water inlet on the top end and a raw water inlet on the bottom end. has an outlet for purified water, a first purification material layer including an ion exchange material disposed adjacent to the inlet in the housing, and a first purification material layer adjacent to the outlet on the downstream side of the first purification material layer. a second purification material layer containing an adsorbent carbon material, which is disposed in a manner separated from the first purification material layer by a porous filter; The water is supplied in a batch manner so that the water flows through a porous filter and a second purification layer of carbon material, and finally flows out from the outlet and into a water receiving container in a purified state. A device for purification is also provided.

The present invention further includes a replaceable cartridge having a non-ventilated housing containing a filter medium for removing contaminants from water and a container having an opening in an inclined bottom surface, the periphery of the opening being The cartridge is supported by holding the edge of the upper end surface of the housing so that the upper end surface thereof does not protrude above the lowest part of the inclined bottom surface, and the outer surface of the funnel-shaped container is inclined at an appropriate angle. Therefore, it is possible to set the container in any of many types of pots, and when set, the cartridge is positioned above the pots and the filtered water flows into the pots by gravity. To provide a device for purifying a relatively small amount of water batchwise, which is characterized by:

The invention further provides a unitary container having an upper and a lower compartment separated by an apertured partition, a filter cartridge incorporating a plurality of filtration layers within the housing, and means for venting air from the lower compartment to the atmosphere. the housing is inserted into the opening to filter water flowing from the upper compartment through the filter cartridge to the lower compartment; There is a handle, the water inlet at the upper end of the upper compartment is in a position where you can insert your hand and grasp the handle, and the lower compartment has a cock-shaped tap for dispensing filtered water. To provide a water purification device characterized by:

When using the present invention to purify relatively small amounts of water batchwise, it is preferred to incorporate a multi-stage filter cartridge into the funnel-shaped container. Such a device can be applied to various appliances using a gravity flow water supply system, such as pots, coffee brewers, etc.

When purifying a relatively large amount of water in batches using the present invention, it is preferable to use a container whose interior is divided into two compartments, preferably manufactured by blow molding. in this case,
Raw water enters the upper compartment, and filtered water enters the lower compartment. A filter cartridge is mounted on the wall between the compartments so that water is filtered as it flows down by gravity from the upper compartment to the lower compartment.

Inside the filter cartridge there is a layer of ion exchange resin followed by an adsorption layer of activated carbon, with a partition between the two layers. The constituent material of the partition is a particulate filter medium. Ionic contaminants, including lead, aluminum and other metals, are removed as the water passes through the ion exchange layer. - The layer of activated carbon removes organic substances and other taste-affecting impurities, and also removes any taste or odor that may come from the ion exchange resin. An optional permeable filter media layer may be provided before and/or after the above two layers to trap particulates in the water or to control the water flow pattern within the cartridge to prevent local collapse of the filtration layer. It may be provided. (7) Materials should be selected so that the rate of water flow due to gravity is maintained appropriately.

[Embodiments] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 shows a typical drip-type coffee brewer 10. As shown in FIG. The brewer includes a water container 14, a pot 12 that rests on a heater 16, and a coffee grounds container 24. water container 1
4 may also be provided with a heater (not shown). container 1
The hot water in the container 24 enters the container 24 from the outlet 22, passes through a layer of coffee powder, becomes coffee, and naturally flows down to collect in the pot 12. The heater 16 keeps the coffee at a temperature suitable for drinking. These type of drip coffee brewers have no means of filtering the water.

The illustrated coffee brewer is only one example where a relatively small amount of filtered water is desired. Other examples include when making tea or making soup.

A common feature of such examples is that the amount of filtered water required is small, eg, only a cup or a dozen.

Most conventional water purification filter devices are designed to treat relatively large amounts of water in batches, are relatively large and inconvenient to handle, and cannot be stored away after use until the next use. Often necessary.

It is natural that those desiring relatively small amounts of filtered water would want to minimize the effort required for filtration. For example, people don't go out of their way to attach filters to faucets.

Also, don't just put filtered water in your coffee pot; you may want to put it in a teapot or deep pot the next time. Therefore, a system for treating small amounts of water batchwise must be able to be attached to many types of containers of different sizes.

In one embodiment of the invention shown in FIG.
The filter cartridge 3o is suspended from a support member 28 fixed to the filter cartridge 6. By appropriately selecting the taper angle A of the funnel-shaped container, the lower part of this container 26 can be adapted to the top opening of various pots, deep pots, etc. having different diameters.
The container 26 can be kept stable simply by placing it on a pot or the like.

The funnel 26 is not compatible with all pots, etc., but is compatible with most drip coffee brewer pots and teapots.

Adding a round M32 to the funnel 26 is optional. The lid 32 has a hole 34 through which raw water is introduced. Preferably, the lid 32 is sloped downwardly toward the hole 34 to facilitate the introduction of water. The illustrated hole 34 is not located directly above the cartridge 3o, but is positioned so as to introduce water into one side of the funnel-shaped container 26. The water is too strong (it is undesirable to hit the cartridge directly. Wax-shaped container 2
The water entering 6 flows down by gravity, passes through the filter cartridge 3o and flows out from the bottom.

The lower part of the funnel-shaped container 26 abuts against the upper edge 36 of the container, such as the pot 12, to stably support the entire container 26. The taper angle mA of the funnel-shaped container 26 is appropriately determined with reference to the dimensions of a commercially available drip coffee extractor pot, deep pot, etc.

The diameter of the opening 38 in the bottom of the funnel 26 is the diameter of the opening 38 in the bottom of the funnel 26.
It is defined so that the cartridge 30 can be inserted and held. The upper edge 40 of the cartridge 30 is tapered as shown at 39, and fits tightly around the tapered opening 38. To prevent water from remaining at the bottom of the container 26, the upper end surface of the cartridge 30 is attached to the support member 2.
It is located at the same level as the number 8 or slightly lower. Two coaxial annular collars 42, 44 formed on the outer surface of the bottom of the funnel 26 and accessible to the cartridge 30 and the funnel 26
This prevents eccentricity of the cartridge 30, and also strengthens and stabilizes the retention of the cartridge 30.

It is preferable that the entire bottom surface of the container 26 be sloped downward to allow the water to completely drain out. Cartoli,.

Water passing through the tube 30 flows out the bottom 46 of the cartridge and collects in the bot 12.

A preferred configuration of filter cartridge 30 is shown in FIGS. 2 and 4-6 and in our U.S. Patent Application No. 07
No. 284,256 (filed December 14, 1988). This cartridge 30 is of a multi-stage filtration type, and as shown in FIGS. 2 and 4, the cylindrical housing 50 has an inlet 52 at its upper end and an outlet 54 at its bottom.
There is.

However, the inlet and outlet may be provided at other positions.

The housing 50 is made of non-breathable material and the inlet 52 is
It is preferable to use a closed type except for the outflow port 54. Preferably, the inlet 52 and outlet 54 are sealed at the cartridge manufacturing facility. The cartridge 30 has a container 2
There is a handle 55 for easy removal from 6.

As shown in FIG. 4, inside the cartridge housing 50 of this embodiment are a plurality of filtration and adsorption filter pads 56, 58, 60. These pads are each formed from a fibrous material and are oriented perpendicular to the longitudinal axis of the cylindrical housing. The pad 56 at the top (ie, closest to the inlet 52) is comprised of one or more breathable discs capable of trapping particulates and serves as a preliminary filtration means. The pad 56 is made of a fibrous material such as polyethylene, polyester, felt, etc., and its pores are small enough to trap particulate contaminants.

Similarly, a breathable filter pad 60 is preferably located at the bottom (ie, closest to the outlet 54). This is a pad to capture any particles that may remain.

In the case of a gravity gravity flow type filtration device, if the size of the filter openings is 100 μm or less, the filtration rate is too low and may not be suitable for practical use. In a water purification device that relies only on gravity, the porosity of the filter element is preferably high enough (and the pore size is preferably 100 μm or more. In the case of a device that uses granular activated carbon and ion exchange resin, it is practically unsatisfactory. In order to achieve high purification efficiency at a filtration rate that is possible, it is necessary that the aperture size of each of the filter pads 56, 58, and 60 shown in the figure is in the range of 150 to 250 μm. filter·
The pad has a higher porosity than the filter in the cartridge, which uses channel pressure.

The space between the upper preliminary filter pad 56 and the lower additional filter pad 6o is divided into two compartments 62 and 6.
It is divided into 4 parts. Preferably, the volumes of both surfaces are approximately equal. A breathable filter to divide the area into three compartments.
I'm using Pad 58. This pad 58 is also made of a fibrous material such as polyethylene, polyester, felt, or the like. It is preferable that the two compartments 62 and 64 are in a vertical positional relationship, and in this embodiment, the partition pad 5
The section 62 above 8 is filled with ion exchange resin to form a first purifying material layer. It is preferable that the downstream compartment 64 be filled with granular activated carbon to form the second purifying material layer.

It is preferable to use 50% ion exchange resin (layer 62) and 50% activated carbon (layer 64) as the purifying material in this ridge. However, even if the ion exchange resin in the first layer 62 is 20% and the activated carbon in the second layer 64 is 89%, the effect of reducing metals such as lead and aluminum by the resin can be practically satisfied. Although it is possible to fill only activated carbon in the cartridge or the tank without using ion exchange resin,
In that case, it does not have the ability to remove metals such as aluminum and lead. If only activated carbon is used, the partition pad 58 will be omitted. As the ion exchange resin and activated carbon, it is preferable to use those having the characteristics described in the above-mentioned US patent application Ser. No. 07/284,256. In addition, as activated carbon that is equivalent and suitable for use, activated carbon Ty with the trade name Ca1gon is also available.
pe Tog <20x 50 meshes).

Preferably, the raw water first passes through the ion exchange resin layer and then through the activated carbon layer.

The reason is that activated carbon can remove any odor or taste that may come from the ion exchange resin.

However, if the odor or taste emitted from the ion exchange resin is not a concern, there is no difference in effectiveness in purifying water even if activated carbon is placed upstream of the ion exchange resin. Also,
In some cases, it is possible to have only one layer using a mixture of ion exchange resin and activated carbon, which saves the cost of the partition pad 58. However, the partition pad 58 also has the effect of dispersing the flow of water and preventing the formation of a certain flow path within the purification layer.
If step 8 is omitted, the effective life of the cartridge may be shortened, and the purification efficiency may also be reduced.

A plurality of holes 66 are provided in the upper end surface of the housing 50 shown in FIG.
The bottom of the housing shown in the figure is also provided with a plurality of holes 68 to evenly distribute the flow of water. The holes in the top surface and the holes in the bottom surface are preferably offset from each other, thereby reducing the possibility of creating a constant flow path within the purification layer 62,64.

The filter cartridge 30 described above may be combined with a different container than the funnel 26 of FIG. For example, the container 68 shown in FIG. 3 is still funnel-shaped, but its tapered portion 70 is step-shaped so that the outer diameter changes stepwise. This container 68 is compatible with a number of pots, cups, pots, etc. with different mouth sizes. It has been found that if the taper angle A of the funnel-shaped container 68 is made concave in the range from 25 DEG to 45 DEG, it will be compatible with the majority of common pots. The most preferred angle is 35°
It is. Of the multiple stepped outer diameters of the tapered portion 70 of the container 68, if the outer diameter is slightly smaller than the diameter of the mouth of the mating pot, air escape from the pot will not be impeded.

To prevent water from remaining in the container 68, the bottom surface 71 of the container 68 is
is tilted downward at angle B. This angle B is not particularly limited, but is suitably 10 degrees or less, and most preferably 3 degrees. To prevent movement of the cartridge 30, an annular collar 42,44 is provided on the outside of the bottom of the container 68.

Two opposing areas 72 on the outer surface of the container 68 are recessed to accommodate handles for lifting the container.

Filter cartridge 30 is attached to container 68 as described with respect to FIG.

The device using the funnel shown in FIGS. 2 and 3 is intended to be used for batchwise purification of small amounts of water to be poured into the water container 14 of the coffee brewer of FIG. 1, for example. There is. It is also convenient to incorporate the filter cartridge of the invention directly into a drip coffee brewer. When installed in a drip coffee brewer, as shown in FIG.
may be stored at the bottom of the water container 73 of the coffee brewer. A small-capacity water reservoir 75 is formed between the downwardly sloping bottom of the cartridge housing 50 and the bottom of the water container 73, and the filtered water flowing from the housing 50 into the water reservoir 75 is passed through a rubber tube 77 or the like to a drip-type coffee brewer. You will be guided to a designated location inside.

FIGS. 8 and 9 show a gravity gravity gravity water purification system for purifying a relatively large amount of water in batches.

The water container 74 of this device is preferably manufactured by blow molding. The interior of this container 74 is separated by an upper compartment 76 and a lower compartment 7 by a partition 80 including a septum to which a filter cartridge housing 50 can be attached.
It is divided into 8 parts.

There is an opening 82 at the upper end of the upper compartment 76 and a lid 92 is provided. Near the bottom of the lower compartment 78 there is a cock-shaped spigot 84 for discharging water.

When the container 74 is placed on a refrigerator shelf, the container 74 must be pushed to the back of the shelf in order to close the refrigerator and the door, so the stopper 84 is often located on the shelf and cannot be operated. Therefore, in order to drain water from the container 74, it is necessary to pull the container 74 forward until the stopper 84 is directly above the cup or the like. A handle 86 is provided to allow easy movement of the container 74 on the shelf. The handle 86 is also convenient for carrying the container 74 containing water.

In order to allow air to escape from the lower compartment as water flows down from the upper compartment 76 to the lower compartment 78 of the container 74, a vent tube 88 having a small hole 90 is installed at a suitable location in the container 74, as shown in FIG. It is. The small hole 90 is preferably provided in the side of the vent pipe 88 to reduce the risk of debris falling into the pipe and entering the filtered water in the lower compartment 78.
A cap or cover (not shown) may be attached to the upper end of 8 to prevent dirt. The walls of the upper compartment 76 of the container 74 include
A vent hole 91 is provided near the upper end of the vent tube 88 to allow air to enter the upper compartment as water flows down to the lower compartment 78. The location of the vent hole 91 is near the top of the container 74, above the water level in the container, and close to the tube 88 (but
It is desirable to have a location that is not blocked by It is optional to cap the vent 91 to prevent water from spilling when carrying the container 74.

The opening 92 in the top of the container 74 is directly above the filter cartridge housing 50. The diameter of opening 92 is large enough to allow one to reach into the upper section of container 74 and grasp handle 55 in order to remove and replace the filter cartridge. To prevent raw water from leaking around the filter cartridge housing 50 and into the lower compartment 78, an O-ring 94 seals between the compartment 80 of the container 74 and the housing 50.

Since the container 74 manufactured by blow molding is flexible, a rigid sleeve 96 is inserted into the opening of the partition 80 and held in place with a snap clip 98. The filter cartridge nose 50 seats tightly and stably in this sleeve 96.

To allow the water in the upper compartment 76 to drain completely, the bottom of the upper compartment slopes downwardly toward the opening into which the sleeve 96 is inserted. For the same reason, the upper end of sleeve 96 does not extend above the lowest part of the bottom of the upper section.

Although the present invention has been described above in detail with respect to preferred embodiments, it goes without saying that the present invention is not limited to these embodiments.

[Effects of the Invention] The water purification device of the present invention can easily purify a relatively small amount of drinking water at any location to remove or significantly reduce contaminants such as lead, chlorine, aluminum, and other impurities. Can be done. Furthermore, the apparatus of the present invention can be configured to be suitable for purifying a relatively large amount of water in batches at any location.

[Brief explanation of the drawing]

Figure 1 is a side view of a typical drip coffee brewer.
FIG. 2 is a longitudinal sectional view of a funnel-shaped container and a multistage filter cartridge of a water purification device according to an embodiment of the present invention, and FIG. 3 is a side view showing another example of the funnel-shaped container of the device of FIG. 2. 4 is a longitudinal sectional view of the filter cartridge of the present invention, FIG. 5 is a top view of the filter cartridge of FIG. 4, FIG. 6 is a bottom view of the filter cartridge of FIG. 4, and FIG. 8 is a longitudinal cross-sectional view of an embodiment of the present invention in which the filter cartridge of the present invention is built into a coffee extractor; FIG. 8 is a perspective view of the purification device of the present invention for batchwise processing of a relatively large amount of water; FIG. 9 The figure is a simplified longitudinal sectional view of the apparatus of FIG. 8. 12. Bot 26.68. ,,, Wax-shaped container, 30,...
Filter cartridge, 50, Cartridge housing, 56, 58. 60. ,, ,
Filter band, 6 2, 6° upper compartment (first purifying material layer) 4, 8° lower compartment (second purifying material layer), 4° container.

Claims (1)

[Claims] (1) A plurality of chambers including a first chamber containing raw water, a second chamber containing filtered water, and means for reducing contaminants such as lead, aluminum, and chlorine contained in the raw water. a filter housing containing a filtration layer; and
comprising means for supporting the first chamber, the second chamber and the filter housing in a position such that water will flow from the first chamber through the filtration layer and into the second chamber by gravity; A device that purifies water in batches using a gravity flow water supply method. (2) The water purification device according to claim 1, wherein the first chamber is inside a funnel-shaped container having dimensions that fit into appropriate openings of pots having different shapes or sizes. (3) According to claim (2), the outer surface of the funnel-shaped container is step-shaped, and each step has an outer diameter different from the outer diameter of the other steps, and the outer diameter of each step is adapted to the opening of each of the pots. water purification equipment. (4) The first chamber and the second chamber are formed in one container as an upper chamber and a lower chamber, respectively, the upper chamber has an opening for water supply at the upper end, and the bottom of the lower chamber has an opening for discharging water. 2. A water purification device according to claim 1, wherein there is a stopper, a partition between the upper chamber and the lower chamber, and the filter chamber is supported by the partition. (5) The first chamber and the second chamber are vertically positioned above and below each other, and there is at least one partition between the two chambers, and at least the partition wall forms the bottom wall of the upper chamber. 2. A water purification device according to claim 1, wherein the filter housing is suspended from a support opening in the bulkhead. (6) The edge of the support opening and the edge of the upper end of the filter housing have tapered surfaces that match each other, so that the upper end of the filter housing is within the partition wall and does not protrude above the partition wall. The water purification device according to item (5). (7) said bulkhead is sloped downward to completely drain water from the first chamber, and a filter housing is suspended from the lowest part of the sloped bulkhead, and the filter housing is suspended from the edge of said support opening and the filter housing is suspended from the lowest part of the sloped bulkhead; 6. A water purification device according to claim 5, wherein the upper end of the filter housing is within the partition wall and does not protrude above the partition wall because the edges of the upper end of the housing have mutually matching tapered surfaces. (8) The water purification device according to claim (4), further comprising a pipe extending from the lower chamber to a point near the upper end of the upper chamber in the atmosphere outside the upper chamber. (9) The upper end surface of at least one section of the upper chamber is higher than the upper end surface of other sections, and the side surface of the container has a ventilation hole at a position close to the high upper end surface. Water purification equipment. (10) The water purification device according to claim (1), wherein there is a handle that stands upright on the upper end of the filter housing to facilitate removal and replacement of the filter housing. (11) The water purification device according to claim (1), wherein there is a substance in the filter housing that removes lead from raw water. (12) The water purification device according to claim (1), wherein there is a substance within the filter housing that removes aluminum from raw water. (13) The water purification device according to claim 1, wherein the filter housing includes an ion exchange resin layer. (14) There is a granular activated carbon layer and an ion exchange resin layer in the filter housing, and there is a breathable filter between the two layers, and the breathable filter disperses the water flow, and one side of the two layers The water purification device according to claim (1), wherein the possibility of forming a certain flow path in either or both of the water purification devices is reduced. (15) having a funnel-shaped container that is non-porous and has a relatively large diameter at the top and gradually decreases in diameter toward the bottom; and a water purification cartridge removably attached to the container;
an opening in the center of the bottom of the container, the edges of the opening being shaped to receive and support a water purification cartridge;
The housing of the water purification cartridge is a non-ventilated, closed type, and has a raw water inlet on the upper end surface and a purified water outlet on the lower end surface, and inside the housing, ions are placed adjacent to the inlet. A first purification material layer containing an exchange material and an adsorbent carbon material disposed downstream of the first purification material layer adjacent to the outlet and separated from the first purification material layer by a porous filter. There is a second purification material layer, and the raw water flows by gravity from the inlet through the first purification layer of ion exchange material, the porous filter, and the second purification layer of carbon material, and is finally purified. A device for purifying water in batches, characterized in that the water flows out from the outlet and enters a water receiving container. (16) Claim (15) comprising two filter elements adjacent to the inlet and the outlet, and the two filter elements and the porous filter are both formed of particulate filter media. ) The water purification device described in ). (17) The porous filter between the first purification layer and the second purification layer disperses the flow of water to reduce the possibility that a certain flow path will form in one or both of the two purification material layers. The water purification device according to claim (16). (18) The water purification device according to (15), wherein the funnel-shaped container has a lid, and the lid is inclined toward the water supply port. (19) The water supply port is located close to the edge of the lid, and the slope of the lid is such that water introduced from the water supply port flows into one side of the funnel-shaped container, so that the water that flows in is purified. Claim (18) in which the cartridge is not directly hit
) The water purification device described in ). (20) The water purification device according to claim 15, wherein there is a substance in the filter housing that removes lead from raw water. (21) The water purification device according to claim (15), wherein there is a substance within the filter housing that removes aluminum from raw water. (22) The water purification device according to claim 15, wherein there is an ion exchange resin layer within the filter housing. (23) There is a granular activated carbon layer and an ion exchange resin layer in the filter housing, and there is a breathable filter between the two layers, and the breathable filter disperses the water flow, and one side of the two layers 16. The water purification device according to claim 15, wherein the possibility of forming a fixed flow path in either or both of the channels is reduced. (24) a replaceable cartridge having a non-ventilated housing housing a filter medium for removing contaminants contained in water; and a container having an opening in an inclined bottom surface, the periphery of the opening being above the housing. The cartridge is supported by holding the edge of the end surface so that its upper end surface does not protrude above the lowest part of the sloped bottom surface, and the outer surface of the funnel-shaped container is sloped at an appropriate angle, so that it can be used in a variety of types. The container can be set in any of the pots, and when set, the cartridge is positioned above the pots, and the filtered water flows down into the pots by gravity. A device that purifies relatively small amounts of water in batches. (25) Since the upper edge and the peripheral edge are in close contact and the cartridge does not protrude above the bottom of the inner surface of the container, water in the container substantially completely flows out and enters the cartridge. ) The water purification device described in ). (26) The outer surface of the funnel-shaped container has a step-like part, and the outside diameter of each step is the same as the outside diameter of the other step so that the container can be set in any of many types of pots with different shapes or sizes. The water purification device according to claim (24), which is different. (27) The water purification device according to claim (24), wherein there is a substance within the filter housing that removes lead from raw water. (28) The water purification device of claim (24), wherein there is a substance within the filter housing that removes aluminum from raw water. (29) The water purification device according to claim 24, wherein there is an ion exchange resin layer within the filter housing. (30) There is a granular activated carbon layer and an ion exchange resin layer in the filter housing, and there is a breathable filter between the two layers, and the breathable filter disperses the water flow to one side of the two layers. 25. The water purification device according to claim 24, wherein the possibility of forming a certain flow path in either or both of the channels is reduced. (31) a unitary container having an upper section and a lower section separated by an apertured partition, a filter cartridge containing a plurality of filtration layers within the housing, and means for venting air from the lower section to the atmosphere; , the housing is inserted into the opening to filter water flowing from the upper compartment through the filter cartridge to the lower compartment, and the housing has a handle for attaching and subsequently removing the filter cartridge from the opening. The water inlet at the upper end of the upper compartment is located at a position where you can insert your hand and grasp the handle, and the lower compartment has a cock-shaped stopper for dispensing filtered water. water purification equipment. (32) The water purification device according to claim (31), wherein there is a substance within the filter housing that removes lead from raw water. (33) The water purification device according to claim (31), wherein there is a substance within the filter housing that removes aluminum from raw water. (34) The water purification device according to claim (31), wherein there is an ion exchange resin layer within the filter housing. (35) There is a granular activated carbon layer and an ion exchange resin layer in the filter housing, and there is a breathable filter between the two layers, and the breathable filter disperses the water flow, and one side of the two layers 32. The water purification device according to claim 31, wherein the possibility of forming a fixed flow path in either or both of the channels is reduced.