JPH0790216B2 - Water purifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention is capable of easily visually recognizing the replacement time or durability time of a filter medium stored in a water purifier and improving the durability of the filter medium. The present invention relates to a domestic or industrial water purification device.

“Prior Art” Conventionally, in a filter tank filled with one or more filter media,
A water purification device used for domestic or industrial purposes, which can remove impurities and bacteria contained in raw water and add minerals by passing through raw water to form drinking water useful for health There are various devices.

"Problems to be Solved by the Invention" Each of the water purifiers of this type forms a filter tank by laminating and packing a filter medium such as activated carbon, ceramics, or coral sand. When the water has a service life and is purified beyond the service life, it may not be able to exert a predetermined cleaning effect, but the presence of organic substances adhering to the filter material may cause bacteria and the like to propagate. Yes, there is a possibility that the water purifier will instead provide harmful water to the human body.

For this reason, the filtration tank is generally made into a cartridge so that it can be replaced at regular intervals, but it is extremely rare that the replacement time of the cartridge is memorized in a general household, and it is often the predetermined service life. There are still many things to use after passing, and there was a risk that using a water purifier would adversely affect the health.

In view of the drawbacks of the prior art, the present invention is to provide a household or industrial water purifier in which the replacement time or the endurance time of the filter medium stored in the water purifier can be easily understood visually.

Another object of the present invention is to provide a water purifying device which secures aerobicity in a filtration tank and can suppress the generation of anaerobic harmful bacteria even if organic matter adheres to the filter medium. And

Another object of the present invention is to provide a water purifying apparatus which improves the durability of the filter medium itself by removing organic substances attached to the filter medium in the filter tank.

Still another object of the present invention is to increase the amount of dissolved oxygen in the filtered purified water, and in tandem with the purification effect of the filtration tank, it is highly preferable as drinking water or water for plants and animals. It also aims to provide purified water.

"Means for Solving Problems" First, the process leading to the present invention will be described.

Conventionally, sodium peroxide, barium peroxide, barium phosphate, and other inorganic peroxides have been used as the main raw materials, and a catalyst and a reducing agent that facilitate oxygen generation have been used as the main raw material, and harmful substances generated by the reaction after oxygen generation have been removed. In addition, an inorganic powder for adjusting pH and a powder made of special graphite are uniformly mixed with these inorganic powders,
In recent years, an oxygen generating solid agent has been developed, which is solidified with dental plaster of Paris and formed into a predetermined shape by pressure molding.

And such a solid agent can generate oxygen continuously for a long time without adding any energy if it is added to water, and the inorganic peroxide, the catalyst and the reducing material, and further the burning agent. The oxygen generation time can be freely adjusted by appropriately adjusting the compounding ratio of gypsum.

The present invention was made by effectively utilizing the characteristics of the oxygen-evolving solid agent, and is characterized in that the container 10, 50 provided with the filter tank 2 filled with the filter medium 3 is The oxygen-generating solid agent 1 that continuously generates oxygen for a long time is incorporated, and the oxygen generated from the solid agent 1 can be visually confirmed from the outside of the container 10,50. It can be easily achieved by forming 10 transparent or translucent (see FIG. 1), and when the container 50 is formed of an opaque container such as a metal container, it is transparent or translucent along the outer wall surface of the container 50. Forming the passage 4 of
Oxygen generated from the solid agent 1 may be configured to be able to conduct in the passage 4. (Refer to FIG. 3) A water purifier is proposed, which has the essential constitutional requirements of matching the service life of the filter medium 3 filled in the filtration tank 2 with the oxygen generation time of the solid agent 1.

"Effect" According to the technical means, when the filter medium 3 filled in the filter tank 2 has a purifying function, oxygen bubbles are continuously generated, and the generation of oxygen bubbles in the solid agent 1 is stopped. At this time, since it is possible for the user to visually confirm that the service life of the filter medium 3 has been reached, the replacement of the filter tank 2 becomes extremely easy, and the filter medium 3 is erroneously filtered by the filter medium 3 whose cleaning ability is lowered. There is no fear of drinking water, which is extremely favorable for hygiene.

Also, since oxygen bubbles are constantly generated during the purification water, the dissolved oxygen in the purified water becomes extremely large, and the generation of anaerobic bacteria is eliminated. In tandem with the water purification effect of, it is possible to obtain water that is extremely preferable as drinking water and as water for animals and plants.

It should be noted that the solid agent 1 may be arranged at any position as long as it is in the containers 10 and 50. However, by arranging the solid agent 1 below the filtration tank 2, the oxygen generated from the solid agent 1 is removed. Part of the fluid flows into the filter tank 2 to remove impurities adhering to the filter medium 3 to regenerate the filter medium 3 and to keep the inside of the filter tank 2 under aerobic conditions. In addition to being able to prevent the generation of organic matter, the organic substances adhering to the filter medium 3 in the filter tank 2 can be removed, and the filter medium 3 itself can be used while being regenerated one after another. Therefore, the durability of the filter medium 3 is greatly improved. Improve to.

Further, as shown in FIG. 3, the solid agent 1 is positioned on the upstream side of the filtration tank 2 so that the raw water in which oxygen is dissolved is filtered.
Since it flows into the inside, the inside of the filtration tank 2 can be maintained under aerobic conditions, and the generation of anaerobic harmful bacteria and the like can be prevented in the same manner as described above.

[Embodiment] Hereinafter, a preferred embodiment of the present invention will be exemplarily described in detail with reference to the drawings. However, unless otherwise specified, the dimensions, materials, shapes, relative positions, etc. of the components described in this embodiment are not intended to limit the scope of the present invention thereto, but merely illustrative examples. Nothing more than.

First, a method for producing the oxygen-generating solid agent 1 which is the basis of the present invention will be briefly described with reference to FIG. 5. An inorganic peroxide such as barium peroxide as an oxygen-generating source and a neutralizing agent that also functions as a reducing agent. Main ingredients such as primary calcium phosphate and calcium sulfate, special graphite, etc. as agents are removed by vacuum low temperature drying to remove water, and then weighed and blended with each other. Weighing the raw material of solid agent 1 formed by mixing and crushing with the plaster for use in a desired amount,
It is manufactured by filling raw materials into a molding die and press-molding at room temperature.

Next, a pot-type domestic water purifier according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

In this embodiment, the discharge port 11 is provided at the upper end of the outer peripheral surface and the handle is provided on the opposite side.
It is composed of a cylindrical container 10 forming 12 and a lid 13 which is detachably fitted to the upper end surface of the container 10, a filter 30 mounted in the container 10 and an oxygen generating solid agent storage container 40. Both are made of transparent plastic.

The filter 30 is composed of a substantially cylindrical filter tank 2 and a raw water storage section 32 integrally formed by expanding the diameter above the filter tank 2. The filter tank has a large number of drainage holes 33 on the inner bottom surface thereof. Coral grain layer consisting of small particles coated with silver nitrate on the surface,
The filter medium layer 34 formed by laminating the filter medium 3 composed of the activated carbon layer and the silica stone layer is provided, and the filter medium 3 is pressed with an appropriate pressure to bring the particles into close contact with each other.
The pressing plate 14 having the holes is screwed on, and a plurality of engaging projections 33 are radially provided on the outer peripheral surface of the lower end of the filtration tank 2.

The raw water storage part 32 has a cylindrical shape that is fitted tightly on the inner peripheral surface of the container 10, has an annular protruding end 31 of a ring formed at the upper end thereof, is configured to be engageable with the peripheral edge surface of the upper end of the container 10, and discharges the container 10. A drain groove 36 is provided which communicates between the outlet 11 and the purified water storage section 18 on the lower side of the container 10, and the drain groove 36 and the outlet 11 are arranged so as to coincide with each other.

The solid material storage container 40 has a thin-walled cylindrical shape, and a circular recess 41 in which the bottom surface of the filter 30 can be placed is recessed in the center upper surface, and a ring-shaped retaining groove 42 is formed on the inner peripheral surface of the recess 41. Further, a position corresponding to the engaging projection 33 of the retaining groove 42 is cut out to form a concave groove 43.

Then, in the solid agent storage container 40, the oxygen generating solid agent 1 in which the period of continuously generating oxygen is matched with the service life of the filter medium 3 is enclosed, and purified water and oxygen are discharged on both upper and lower surfaces. A large number of holes 45, 46, 47 are formed respectively.

The solid agent storage container 40 is provided with a filter so that the upper surface recess 41 is aligned with the engaging projection 33 on the filter 30 side and the recess groove 43.
After contacting the bottom surface of the solid agent container 30, the solid agent container 40 is rotated to fit the engaging protrusion 33 of the filter 30 into the engaging groove 17 of the solid agent container 40, and the drain hole 35 on the filter 30 side. The solid agent storage container 40 is configured to be locked at a position where the holes 45 coincide with each other.

According to this embodiment, by injecting the raw water into the raw water storage unit 32, the raw water flows into the filtration tank 2 through the through holes 36 and passes through the filtration material layer 34 formed by stacking the filtration media 3. ,
After adsorbing impurities, softening water, deodorizing, sterilizing, and adding minerals are performed, and then the solid material storage container 40 is flowed.

Then, in the solid material storage container 40, the solid agent 1 reacts with the inflowing water to generate oxygen, and the discharge holes 46, 4 are discharged.
7. Drinking water more useful for health is stored in the purified water storage unit 18 in the container 10.

In this state, oxygen is supplied from the hole 47 to the purified water storage unit 10 in the container.
It can be understood that the purification function is maintained visually from the outside of the container 10 as well as oxygen is introduced into the filter medium layer 34 through the hole 45 and the inside of the filter medium layer 34 is aerobatic. The filter medium 3 is cleaned in the process of keeping the oxygen downward and escaping the oxygen to the raw water side through the many through holes 14a of the pressing plate 14.

Then, when the purifying function of the filter medium 3 of the filter medium layer 34 is lowered by a certain degree of use, the generation of oxygen from the solid agent 1 is stopped corresponding to this, and the filter 30 is replaced from the outside of the container 10. I can understand that the floor has come.

Then, the storage container 40 together with the filter 30 is taken out from above and the storage container 40 is rotated in the reverse direction so that the storage container 40 can be easily separated from the filter 30.

Then, in the separated filter 30 and solid agent storage container 40, only the solid agent 1 and the filter medium 3 may be exchanged for reuse or replaced with a new cassette.

FIGS. 3 to 4 show another embodiment of the water purifier used especially by being attached to the tap of the water supply or the lower end of the water storage tank 60 for storing the raw water.

Reference numeral 50 denotes a metal container having a cylindrical shape and a raw water inlet 51 and a purified water outlet 52 formed on both upper and lower surfaces.
3'is divided into two by a partition wall 55, and on the lower surface of the filtration tank 2 having a large number of discharge holes 59 formed, a filtration net 57, the coral grain layer 3a, an activated carbon layer 3b, and a silica stone layer are sequentially arranged from below. The filter medium 3 composed of 3c is sequentially pressed and laminated at an appropriate pressure, and a large number of inflow holes 58 are formed on the upper surface thereof.

A compartment 20 for accommodating the oxygen-generating solid agent 1 is provided on the side wall of the upper surface of the filtration tank 2, and a reduced water inlet hole 21 is provided under the inner wall of the compartment 20 facing the filtration tank 2. A pair of openings 22 and 23 are perforated on the side of the wall surface 50a of the container 50 located on the upper and lower sides of the upper wall of the compartment 20. The transparent resin bypass passage 4 is connected to the openings 22 and 23. ing.

According to such an embodiment, the raw water inlet 51 from the water storage tank 60
Raw water flowing into the upper space 53 in the container 50 through the filter medium 3
Because of the large water resistance, the space 53 is once filled,
It enters the compartment 20 through the raw water inflow hole 21, and reacts with the oxygen-generating solid agent 1 in the compartment 20 to generate oxygen.

Since the generated oxygen is lighter than the raw water, it naturally does not flow back to the raw water inflow hole 21 side, passes through the transparent resin bypass passage 4 from the opening 22, and again from the opening 23 to the upper space portion in the container 50.
Returning to the inside of 53, the amount of dissolved oxygen in the raw water is increased, and the raw water having the increased amount of dissolved oxygen is caused to flow into the filtration tank 2.

In this state, the generation of oxygen bubbles can be visually observed through the transparent resin bypass passage 4, and even if the container 50 is non-transparent, it can be understood that the purifying function is maintained from outside the container 50, and the amount of dissolved oxygen is maintained. Since raw water containing much water flows into the filtration tank 2, the inside of the filtration tank 2 can be maintained under aerobic conditions.

When the purifying function of the filter medium in the filter tank 2 is lowered due to a certain amount of use, the generation of oxygen from the solid material 1 is stopped in accordance with this, and the water purifier itself is replaced through the bypass passage 4. Understand that the time has come.

Therefore, the effects of the present invention can be achieved smoothly in any of the above embodiments.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention, FIG. 1 is a longitudinal sectional view, and FIG. 2 is an enlarged perspective view of an essential part. 3 to 4 show another embodiment of a water purifier which is used particularly by being attached to a water faucet or a water storage tank for storing raw water. FIG. 3 is a longitudinal sectional view, and FIG. It is a schematic diagram showing an attached state. FIG. 5 is a block diagram showing a method for producing an oxygen generating solid agent.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location C02F 1/68 540 A 1/72 Z

Claims (5)

[Claims] 1. An oxygen-generating solid agent for continuously generating oxygen for a long time is placed inside a container provided with a filter tank filled with a filter medium, and oxygen generated from the solid agent is visually observed from outside the container. A water purifier characterized in that it can be confirmed and that the service life of the filter medium filled in the filtration tank and the oxygen generation time of the solid agent are matched. 2. The container according to claim 1, wherein the container is made transparent or semi-transparent so that oxygen generated from the solid agent can be visually observed.
Water purification device described in paragraph 3. The water purifier according to claim 1, wherein a transparent or semitransparent passage is formed along the outer wall surface of the container, and oxygen generated from the solid agent can be conducted through the passage. 4. The oxygen generating solid agent is disposed below the filtration tank, and a part of oxygen generated from the solid agent can be conducted into the filtration tank. Water purifier 5. The water purifier according to claim 1 or 2, wherein the solid agent is located upstream of the filtration tank.