JPH08187490A - Water purifier - Google Patents

Abstract

PURPOSE: To provide a water purifier capable of drawing out the water purifying capacity of purifying materials to the max. by eliminating the mutually welded or fixed state of purifying materials and increasing the contact area with water. CONSTITUTION: When raw water 4 is passed through a case 2 in which purifying materials 6 are housed in a movable state from an introducing guide pipe 5, rotary streams C are generated by a guide part 11 and the purifying materials come into contact with raw water while stirred in the case to be purified to become purified water 7. The packing ratio of the case 2 with the purifying materials 6 is pref. 40-70%.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier, and more particularly to a water purifier for purifying water by filling a purifying material in an exchangeable case and passing water through the case.

[0002]

2. Description of the Related Art A water purifier is filled with various purifying materials (for example, calcium sulfite agent, activated carbon and zeolite, coral, barley stone, tourmaline, etc.) in a replaceable cartridge type case and passed through the case. By contacting raw water (tap water or other water to be purified) with purification materials by watering to remove residual chlorine and off-flavor substances, elute minerals and vitamins, etc., far-infrared effect and active effect There are things that I tried to get. Usually, the purification material is granular,
In most cases, it is finely formed into a cubic shape, tablet shape, bead shape, etc., and it is filled in a full case to obtain the maximum water purification capacity. It was the current situation that there was a very large difference from the actual water purification capacity.

As an example, how much 1 g of a calcium sulfite purification material having a purity of 86% can purify raw water having a residual chlorine concentration of 1 ppm is calculated and compared with the measured value. Cl ₂ + H ₂ O → HC in 1 liter of raw water with chlorine concentration of 1 ppm
From 10 + HCl, 52.46 ÷ 70.9 = 0.74 mg
Contains HClO hypochlorous acid, and for dechlorination, HClO + CaSO ₃ → CaSO ₄ + HCl
Therefore, 120.14 × 0.00074 ÷ 52.46≈
It can be seen that 0.0017 g / l CaSO ₃ is required. Therefore, 1g of purification agent of calcium sulfite with a purity of 86% is theoretically about 500g of raw water with residual chlorine concentration of 1ppm.
Although it is possible to process liters, when the purifying material is put in the case to fill it, the actual measurement is only about 50 to 100 liters per gram, and it is possible to exert only about 10 to 20% of the water purification capacity originally possessed by the purifying material. .

There are two possible reasons for this. The first reason is that if the case is filled with purifying material,
Since the purification materials are fixedly adjacent to each other, it is divided into parts that allow water to pass easily and parts that do not easily pass, so-called "water passages".
It can be mentioned that For this reason, the contact with the raw water becomes low at the part outside the "water passage", and the purification material does not function well. It should be noted that the "water passages" are most prominent because the soluble types of purification materials are welded to each other. There are some parts that are easy to pass and some parts that are difficult for water to pass through. Even if the purifying material is packed in a case so that the purifying materials are not fixedly adjacent to each other, the purifying material is pushed to the downstream side in the case and fixed near the outlet of the case while passing water. The above problem cannot be completely solved because the above-mentioned "passage of water" is formed in the converted state.

The second reason is that, for example, when a soluble type is selected as the purification material, only the surface of each purification material reacts, and the active ingredient remains unreacted in the deep portion. To be In this case, a countermeasure to reduce the size of the purification material may be considered, but the reduction in size makes it easier for the purification material to flow out of the case,
Since the contact area with the raw water is too large and the reaction rate becomes excessive, the exchange interval of the case becomes short, and other problems occur.Because the clearance between the purification materials also becomes small, welding is likely to occur as a whole, and in some cases it may occur. There is a problem that the water flow resistance becomes too high.

[0006]

DISCLOSURE OF THE INVENTION An object of the present invention is to eliminate the adhesion and immobilization of purifying materials in a case and to use a purifying material of a certain size to cause a reaction to a deep portion.
An object of the present invention is to provide a water purifier capable of maximizing the water purification ability of the purification material by increasing the contact area between the water and the purification material.

[0007]

According to the present invention, there is provided a water purifier in which a purifying material is filled in a case which is replaceable with respect to an attachment target portion, and water is passed therethrough to purify the water. It has a guide part for converting the flow of water guided to the rotary flow into a rotary flow, and the purifying material is filled in the case leaving a moving area.

[0008]

Since the water purifier of the present invention is constructed as described above, the rotating flow of water generated inside the case by the guide portion agitates the purifying materials during the passage of water so that the purifying materials are welded or fixed to each other. Disappears. Therefore, there is no "passage of water" inside the case, and the water comes into uniform contact with all the purification materials in the case. In addition, the purifying agents collide with each other while being agitated, and the surfaces are worn away, so that the active ingredient is not always exposed and the deep portion remains unreacted. The effect of being promoted can also be expected. As a result, the contact area between the purification material and the raw water is substantially increased, and the water purification capacity originally possessed by the purification material can be sufficiently brought out. Furthermore, since the case is filled with the purifying material in a so-called "sparse" state, it has less water resistance and can increase the water flow amount accordingly, especially for showers and bathtubs that require large capacity and high ejection pressure. It can be made suitable as a water purifier for water sprayers, sprinklers, etc.

The filling rate of the purifying material in the case is 40 to
It has been confirmed by an experiment by the present inventor that the treatment capacity of the purifying agent can be efficiently drawn out within the range of 70%. According to this knowledge, when the filling rate is 70% or more, the above-mentioned purification materials are liable to be welded to each other, the collision between the purification materials is weakened, and the water passage resistance is increased, and when the filling rate is 40% or less, the collision occurs. There is a tendency that the total amount of water purification capacity decreases because the frequency of water purification is low and the absolute amount of purification material becomes too small.

Further, when the case is attached to the attachment target site, for example (shower head), it is desirable to hold the case so that the purified water is discharged laterally or upward. The reason for this is that a part of the purification material pressed against the inside / downstream of the case when passing water settles and moves to the upstream side inside the case due to its own weight when the water is stopped. As a result, even a slight welding or immobilization state that may occur during passage of water can be surely destroyed by the rotating flow of water every time water is stopped.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each of the following embodiments, the same reference numerals are given to common parts and portions, and duplicate description will be omitted. In addition,
In the above description and the following description, the "rotating flow" is not limited to the case where the entire flow of water regularly rotates, and indicates a broad concept such as swirling flow or turbulent flow in a part of the flow. is there.

First Embodiment FIGS. 1 and 2 show a first embodiment. The first embodiment is a case where the shower head is selected as the "attachment target portion",
A case 2 is built in the shower head 1. Raw water 4 flowing in from the hose 3 by passing water flows through the shower head 1 and flows into the case 2 from the introduction guide portion 5 of the case 2, contacts the purifying material 6 contained in the case 2, and finally The purified water 7 is sprayed from the nozzle hole 9 of the shower head 1 through the case nozzle portion 8. In this example, the purification material 6 has a purity of 86%.
The granular material of calcium sulfite (CaSO ₃ ) is used, and the purification material 6 is filled in the case 2 leaving the transfer area A.

The case 2 is formed in an overall shape in which a substantially hemispherical convex dome-shaped curved surface guide portion 11 is integrated on the inlet side of a cylindrical case body portion 10. This curved surface guide portion 11
Further, the introduction guide tube portion 5 is connected in a direction orthogonal to the central axis B of the case main body portion 10 shown in FIG. It has a plurality of introduction holes 12 penetrating in a direction orthogonal to the surface that closes the end of the introduction guide pipe section 5, and guides the incoming raw water 4 to the curved guide section 11, where the flow of water is converted. There is. In addition, the case nozzle portion 8 includes the curved surface guide portion 11
A large number of holes are formed on the surface that closes the end of the case body 10 located on the side opposite to.

When the raw water 4 is passed through the case 2 constructed as described above, when passing through the introduction guide pipe portion 5, the water flow having a relatively fast flow changes its flow direction along the curved surface guide portion 11. Then, it is rotated as it is, and a rotating flow C as shown in FIG. 3 is generated. The cleaning material 6 in the case 2 is agitated by this rotating flow C. At this time, a part of the purifying material 6 that cannot be rotated by the discharged water flow is pressed against the inner portion of the case nozzle portion 8 to form the fixed portion 13 having a certain thickness, but in this example,
Since the case 2 is provided in the shower head 1 so that the surface of the case nozzle portion 8 is vertical when not in use (when water is stopped), when the water flow is stopped, the fixing portion 13 is under its own weight. It separates from the case nozzle section 8 and settles down to the storage section D below the introduction guide tube section 5 and the case body section 10 and is stored there. Therefore, the purification material 6 of the fixed portion 13 pressed against the case nozzle portion 8 is also moved or stirred little by little each time water is passed and water is stopped.

Next, the purifying material 6 is added to the case 2 in an amount of 20 to 100.
When the raw water 4 (water temperature 36 to 38 °, residual chlorine concentration 1 ppm) was passed at a water flow rate of 10 l / min, the results shown in the graph of FIG. 3 were obtained. Then, when the filling rate of the purification material is plotted on the horizontal axis and the dechlorination capacity (indicated by the total water flow amount until the residual chlorine concentration of the purified water 7 becomes 0.3 ppm or more) is plotted on the vertical axis, the graph is shown in FIG. As shown in the above, the purifying material 6 is filled in the case 2 with a filling rate in the range of 40 to 70%.
It was confirmed that when it was stored in, the dechlorination performance was extremely excellent, that is, about twice as high as that at 100% filling. Here, the highest value of dechlorination capacity is shown.
The total water flow rate at the time of% filling is about 5000 liters, which is 10
Since the total water flow rate at 0% filling is about 2000 liters, the dechlorination capacity of the purification material 6 per gram is 500.
It becomes 0/2000 × 100/60 = 4.16, and it can be seen that the dechlorination capacity is increased four times or more. Furthermore, water pressure 1
Comparing the water flow resistance at kg / cm ² , 100%
What was reduced by 10% in the case of filling was only about 2% in the case of 60% filling.

Second Embodiment Next, a second embodiment will be described with reference to FIG. The second embodiment is a water purifier for general domestic drinking water, in which the case 14 is built upside down in the water purifier body 15 as the "attachment target site". Case 14 is the first to increase capacity
The case body 16 is formed to be slightly longer than the case 2 of the embodiment, and instead of the introduction guide tube portion 5, a part of the curved guide portion 11 is cut obliquely, and the introduction guide surface portion 1 is formed there.
7 are provided. The introduction guide surface portion 17 has a plurality of introduction holes 18 on an inclined plane that passes through the apex of the dome of the curved surface guide portion 11 and reaches the substantially peripheral edge of the dome. The introduction hole 18 is
It is provided so as to penetrate obliquely with respect to the inclined plane of the introduction guide surface portion 17 in a direction orthogonal to the central axis B of the case body portion 16 shown in the drawing, and the respective introduction holes 18 are oriented parallel to each other. The incoming raw water 4 is guided to the curved surface guide portion 11, and the flow of water is converted there.
Other than this, the configuration is the same as that of the previous embodiment. The raw water 4 that has flowed in from the lower portion of the water purifier body 15 is introduced into the introduction guide surface portion 17
The flow direction is changed by the introduction hole 18 of the
When it is introduced into the inside, it is guided so as to hit the curved surface guide portion 11, where the flow direction is changed again, and it becomes the rotating flow C as it is. Then, the water is purified as in the first embodiment and flows out as purified water 7 through the case nozzle portion 8. A part of the purification material 6 may be pushed by the flow of water to the inside of the case nozzle portion 8 during water passage, that is, a fixed portion 13 may be generated, but when the water is stopped, the introduction guide surface portion 1 is caused by its own weight.
7 and the storage portion E above the curved surface guide portion 11 is settled, and the fixed state is released. The description of the configuration and the operation other than the above description is the same as that of the first embodiment, and the duplicate description is omitted.

Third Embodiment Next, a third embodiment will be described with reference to FIG. The third embodiment is a case where the shower head is selected as the "attachment target portion" as in the first embodiment, and the case 19 is built in the shower head (not shown). Case 1
9 has an overall shape in which a cylindrical introduction guide tube portion 21 is connected to the peripheral surface of a cylindrical case body portion 20.
The inner circumference of the cylinder of the case main body 20 functions as a curved surface guide portion 22, and the introduction guide pipe portion 21 is located on a substantially tangent line of the case main body portion 20 so that the raw water 4 can be smoothly introduced along the curved surface guide portion 22. It is provided. Although not particularly shown, a mesh body, a lattice body, or a porous body is provided between the introduction guide tube portion 21 and the case body portion 20 to prevent the purifying material 6 from flowing back. In addition, a case nozzle portion 23 having a large number of holes formed therein is provided on one end surface of the case body portion 20.

In the case 19 thus constructed, the raw water 4
When water is passed, the water flow that has passed through the introduction guide tube portion 21 is rotated along the curved surface guide portion 22, and a spiral rotation flow F as shown by the arrow in FIG. 6 is generated, and purification is performed by this rotation flow F. The material 6 is agitated, and the raw water 4 becomes purified water 7 and is jetted from the case nozzle portion 23. Although a fixed portion 13 (not shown) may be formed inside the case nozzle portion 23, when the water is stopped, it is separated from the case nozzle portion 23 by its own weight and settles into the storage portion G, so that the fixed state is eliminated. The configurations and operations other than those described above are the same as those in the first and second embodiments, and a duplicate description will be omitted. In addition, the introduction guide tube portion 21 is provided with an inclined through hole like the introduction hole 18 of the second embodiment on the circumferential surface of the case body portion 20, and the raw water 4 is introduced toward the curved surface guide portion 22 and rotated. It may be configured to generate the flow F.

In the above examples, the calcium sulfite particles were used as the purification material 6, but other than this, activated carbon, coral, barley stone, tourmaline, zeolite or the like can also obtain the same effect. The present invention is not limited by the material of the purification material 6.

[0020]

According to the water purifier of the present invention, the purifying material is housed in a case to the extent that it can be moved, and a guide portion is provided inside the case so that a rotating flow is generated in the case when water is passed. In addition, since the purification materials in the case do not adhere to each other, and the purification materials can effectively react to the deep portion of the purification material due to collision and abrasion, it is possible to substantially increase the contact area between the raw water and the purification material. This has the effect of maximizing the original water purification capacity of the purification material.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a first embodiment of a water purifier according to the present invention (when water is stopped).

FIG. 2 is a partial sectional view of the first embodiment of the water purifier according to the present invention (during water flow).

FIG. 3 is a graph showing changes in the amount of water flow and the amount of residual chlorine for each filling rate.

FIG. 4 is a graph showing the relationship between the filling rate and the dechlorination capacity.

FIG. 5 is a sectional view showing a second embodiment of the water purifier according to the present invention.

FIG. 6 is a perspective view showing a case used in a third embodiment of the water purifier according to the present invention.

[Explanation of symbols]

 1 Shower head (attachment target part) 2, 14, 19 Case 5, 21 Introduction guide pipe part (introduction guide part) 6 Purifying material 8, 23 Case nozzle part 10, 16, 20 Case body part 11, 22 Curved guide part ( Guide part) 12, 18 Introducing hole 15 Water purifier body (attachment target part) 17 Introducing guide surface part (introducing guide part) A Moving area C, F Rotating flow

Claims (3)

[Claims] 1. A water purifier in which a purifying material is filled in a case that can be replaced with respect to an attachment target portion, and water is passed therethrough to purify water. In the case, the case rotates a flow of water introduced into the case. A water purifier having a guide portion for changing into a flow, wherein the purifying material is filled in the case leaving a movement area. 2. The filling rate of the purifying material into the case is 40 to 70.
The water purifier according to claim 1, which is%. 3. The water purifier according to claim 1, wherein the case is held with respect to the attachment target portion so that the purified water is discharged laterally or upward.