JP2008279325A - Method for improving quality of water in water tank and water quality improver therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for improving the quality of the water in a water tank such as a water receiving tank, a feed tank and an elevated water tank arranged in a building, an apartment house, a hotel, a multiple dwelling house or the like and a water quality improver for the improving method, in each of which tourmaline for activating water or a titanium oxide-based photocatalyst for decomposing/removing organic matter when irradiated with ultraviolet rays to clean water is utilized particularly to improve the quality of the water stored in the water tank. <P>SOLUTION: The method for improving the quality of the water in the water tank comprises the steps of: preparing the water quality improver provided with a water quality improving material based on tourmaline and/or the titanium oxide-based photocatalyst and a floating body having buoyancy enough to suspend the water quality improving material in the water; suspending the prepared water quality improver in the water housed in the water tank; and bringing the water quality improver into excellent contact with the water by a convection current of the water and migrations of the water quality improver. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a method for improving the quality of water in a water tank, a water tank, an elevated water tank, and the like, and a water quality improver therefor provided in buildings, condominiums, hotels, apartment houses and the like. In particular, the present invention is intended to improve the quality of water stored in a water tank using a titanium oxide-based photocatalyst that decomposes and removes organic matter when it is exposed to water or UV light.

Conventionally, it has been known that tourmaline and titanium oxide photocatalysts have a function of purifying water and improving water quality. That is, tourmaline has a permanent electrode as generally called tourmaline, and continues to generate a weak current of 0.06 milliamperes. This property electrolyzes water, decomposes water clusters to activate water, and exhibits deodorizing and antibacterial effects by adsorption and repulsion. It is also known to improve water quality by separating dirt in moisture by surface-active effects of tourmaline ore, adjusting water quality by weak alkalinization, and mineralizing water by solute action of minerals from tourmaline ore. It has been.

In addition, titanium oxide photocatalysts emit electrons from the surface when exposed to light (ultraviolet rays), and the holes (holes) from which the electrons have escaped have a positive charge and have a strong oxidizing power. OH deprived of electrons from hydroxide ions in the water, very unstable state
Become a radical. Since the OH radical has a strong oxidizing power, it takes electrons from nearby organic substances and tries to stabilize itself. Organic matter that has been deprived of electrons breaks the bond, breaks down into carbon dioxide and water, and diffuses into the atmosphere. Thus, the titanium oxide photocatalyst has the effect of decomposing and removing the organic matter melted in the water and purifying the water by its strong oxidizing power.

Various devices for activating, purifying, and improving the quality of water using the functions of such tourmaline and titanium oxide photocatalyst have been developed. For example,

(A) As a thing using tourmaline, patent 3283231 "water quality improvement apparatus for car wash machines", Unexamined-Japanese-Patent No. 2000-202463 "convection purification / activation apparatus of water or warm water", (b) Photocatalyst was utilized. JP 2005-254100 “Photocatalyst used for water purification”, JP 2000-244694 “Water pollution purification device using rotating member equipped with titanium oxide photocatalyst coating”, (ha) tourmaline and titanium oxide system As a thing using the water quality improvement material which consists of a photocatalyst, Unexamined-Japanese-Patent No. 2005-13974 "water quality improvement device",
Japanese Patent Application Laid-Open No. 2004-243294 “Water quality improvement device” is one example.

Japanese Patent No. 3283231 JP 2000-202463 A JP 2005-254100 A JP 2000-244694 A JP-A-2005-13974 JP 2004-243294 A

The present invention is intended to improve the quality of water stored in a water tank using a water quality improving material mainly composed of tourmaline and / or a titanium oxide photocatalyst. The tourmaline and / or titanium oxide photocatalyst of the water quality improving material naturally improves the water quality by its physical properties as described above. Thus, tourmaline and / or titanium oxide-based photocatalysts do not have to supply energy artificially, so they have the advantage of being economical, but their effects are mild and weak, and the quality of the entire stored water is low. The improvement has the disadvantage of taking time. Therefore, the device for improving the quality of water efficiently is also made in the conventional example.

For example, in the case of Patent Document 1 and Patent Document 2, a container containing tourmaline is provided in a running water passage to actively contact tourmaline and running water, and Patent Document 3 considers convection and agitation in water. By improving the water quality and the contact efficiency, the water quality improvement effect is enhanced. In the case of Patent Documents 4 and 5, a water quality improvement effect is intended to be achieved by a synergistic effect by combining tourmaline and a titanium oxide photocatalyst to purify the water in the water tank. However, the contact with the water quality improving material in the flowing water passage is only a momentary contact and is not sufficient to surely improve the water quality. If the convection and agitation are consciously caused in the water to increase the contact efficiency, an energy supply for that purpose is required and the economic burden increases. Further, simply combining tourmaline and a titanium oxide photocatalyst as in Patent Documents 5 and 6 does not improve the water quality improvement efficiency, and is not satisfactory.

The present invention is a technique for efficiently improving the quality of water stored in a water tank. When water is stored in the aquarium, there is almost no movement and only a slight convection occurs when water flows in and out. It is difficult to efficiently improve the quality of the whole water that does not move in such a staying state. Because the tourmaline and titanium oxide photocatalyst, which are water quality improvers, only improve the water quality on the surface that is in contact with water or in the vicinity of the surface that is likely to come into contact with it. It is. In addition, since tourmaline and titanium oxide photocatalysts are not mellow and strong in water quality improvement, it is difficult to improve the water quality of all the remaining water efficiently by simply placing a water quality improvement material in the tank. There is.

In order to solve such technical problems, the present invention makes it possible to efficiently make water and the water quality improving material by floating the water quality improving material in water and automatically moving the water quality improving material around. This improves the water quality improvement effect in the aquarium.

The first invention to be patented is a water quality improver comprising a water quality improving material mainly composed of tourmaline and / or a titanium oxide photocatalyst, and a buoyant body having a buoyancy capable of floating the water quality improving material in water. The water quality improvement method is characterized in that the water quality improvement material and the water are in good contact with each other by floating the water in the water stored in the aquarium and migrating the water quality improvement device.

The first invention is a method for improving the quality of water stored in a water tank. The first feature of the present invention is that the water quality improver is provided with a buoyant body, and secondly, a water quality improving material mainly composed of tourmaline and / or a titanium oxide photocatalyst is used. Since the water quality improver is equipped with a buoyant body, the water quality improver is suspended in the water stored in the aquarium, and the opportunity for the water quality improver to come into contact with water due to the convection of the water and the migration of the water quality improver increases. In this way, the water quality improving method is designed to efficiently improve the water quality of the entire staying water.

The second invention to be patented is a water tank in which a window part is provided, and an ultraviolet light transmission filter that blocks visible light and transmits only ultraviolet light, and a tourmaline and / or titanium oxide system. A water quality improvement device comprising a water quality improvement material mainly composed of a photocatalyst and a buoyancy body capable of floating the water quality improvement material in water is prepared, and the water quality improvement is performed in the water stored in the water tank. Float the vessel,
It is characterized in that the contact between water and the water quality improvement material is improved by the convection of water and the migration of the water quality improvement device, and the titanium oxide photocatalyst of the water quality improvement device is activated by the ultraviolet rays transmitted into the water tank. This is a method for improving water quality.

The said 2nd invention is the water quality improvement method which strengthened the water quality improvement method of 1st invention. In the case of the present invention, light (ultraviolet rays) is necessary to enhance the effect of decomposing and removing the organic substance of the titanium oxide photocatalyst, which is a kind of water quality improving material, to purify the water. However, in the case of cool water such as water tanks, water tanks, and elevated water tanks installed in buildings, condominiums, hotels, apartment buildings, etc., it is requested to make a dark room so that light does not enter the tank. Yes. This is because when water is irradiated with light, the water quality tends to deteriorate, for example, a photosynthesis action occurs. However, the titanium oxide photocatalyst, which is a water quality improving material, does not exhibit photocatalytic action without light. Therefore, when a titanium oxide photocatalyst is used as a water quality improving material, the purification action cannot be sufficiently exhibited if the inside of the water tank is a dark room. Therefore, a window is provided in a part of the water tank, and an ultraviolet transmissive filter that blocks visible light and transmits only ultraviolet rays is attached to the window, thereby preventing the photosynthesis of the titanium oxide photocatalyst while preventing photosynthesis in water. It is intended to activate and promote water purification.

The third invention to be patented is a water quality improver comprising a water quality improving material mainly composed of tourmaline and / or a titanium oxide photocatalyst, and a buoyant body having a buoyancy capable of floating in the water. .

  The third invention is a basic invention of a water quality improver used to realize the water quality improvement method according to the first invention or the second invention. Since the water quality improving material will be described in detail in the section of the sixth invention, the description thereof is omitted here. The buoyant body is (a) a gas that is lighter than water, such as air, is enclosed in a hollow body) (b) when using a foamed polystyrene, (c) using the foamed polystyrene and gas to generate buoyancy Any buoyant body can be used.

The fourth invention to be patented is a spherical material having a larger diameter with a net or a water-permeable material having a large number of water-permeable holes on the outer periphery of a spherical buoyant material having a buoyancy capable of floating in water. A water permeable outer peripheral wall is formed, a water quality improving material storage space is formed between the outer periphery of the buoyant body and the water permeable outer peripheral wall, and a plurality of water quality improving material storage chambers are formed by dividing the water quality improving material storage space. A compartment is formed, and a plurality of water quality improvement material storage chambers are partitioned, and a spherical water quality improvement material mainly composed of tourmaline and / or a titanium oxide-based photocatalyst is stored in such an amount that an appropriate margin space is generated. If it changes, the water quality improving material can freely move in the water quality improving material storage chamber due to gravity, and a protrusion is formed at an appropriate position of the water permeable outer peripheral wall, so that the posture can be changed by changing the water flow or water pressure. What I did A water quality improvement device according to claim.

The fourth invention is a specific embodiment example of the water quality improver. The overall shape is spherical, and a buoyant body is provided in the center, and a water quality improvement material storage space is formed on the outer periphery by a spherical permeable outer peripheral wall, and the water quality improvement material storage space is divided into a plurality of water qualities. The improvement material storage chamber is partitioned. In the water quality improvement material storage chamber, a spherical water quality improvement material is stored in such an amount that a moderate margin space is generated. When the posture changes, the water quality improvement material stored by gravity becomes free to move in the water quality improvement material storage chamber. It is configured as follows. In addition, the water quality improver is configured such that a protrusion is formed at an appropriate position of the water permeable outer peripheral wall so that the spherical water quality improver can rotate and change its posture even when the water flow or water pressure changes. As described above, the water quality improver according to the present invention constantly rotates in the water by a slight change in water flow or water pressure, so that the contact range between the water and the water quality improving material is wide and good, and the water staying in the water tank Even if it exists, the water quality improvement effect can be heightened.

According to a fifth aspect of the invention to receive a patent, a plurality of ropes are suspended from a buoyancy body having a buoyancy capable of floating in water or from a mounting frame attached to the buoyancy body. A water quality improver comprising a plurality of masses or spheres of a water quality improvement material mainly comprising a titanium oxide photocatalyst.

The fifth invention is a second embodiment of the water quality improver. The water quality improver is provided with a buoyancy body having buoyancy at the top, and a plurality of ropes are suspended directly from the buoyancy body or from an attachment frame attached to the buoyancy body. A plurality of water quality improving material blocks or spheres are attached to each of the ropes. The water quality improver according to the present invention achieves contact between water and the water quality improving material in a wide range of water, and can efficiently improve the water quality in the water tank.

A sixth invention to be patented is a water quality improver characterized in that the water quality improving material is a ceramic lump or spherical body mainly composed of tourmaline and / or a titanium oxide photocatalyst.

6th invention specifies the kind of water quality improvement material which concerns on this invention. When (a) the tourmaline ore is used after being shaped into a spherical or granular form as it is, (b) the tourmaline powdered as a main component, and after mixing and shaping the connecting material, firing it When using tourmaline ceramics, (c) When using a mixture of a titanium oxide photocatalyst and a shaping aid, and firing to form a ceramic lump or sphere, (d ) When powdered tourmaline, titanium oxide photocatalyst and connecting material are mixed and molded, and then fired and ceramicized, (e) tourmaline and titanium oxide photocatalyst are mainly used. It includes all of the water quality improving materials formed from a mixture of other water quality improving materials.

The present invention focuses on the water purification effect of tourmaline and titanium oxide photocatalysts without supplying energy, and adopts this as a water quality improving material, and in order to efficiently exhibit this purification action, water and water quality It is a water quality improvement method devised so that the contact with the improvement material is always good. In the case of the present invention, the water quality is improved simply by floating the water quality improver in the water stored in the water tank, which is convenient.

In particular, when the water quality is improved using tourmaline, the effect of removing red rust from the pipe that distributes water from the water tank and cleaning the pipe is also produced.

The second invention is further characterized in that in order to further activate the titanium oxide photocatalyst, a window is provided in a part of the water tank and an ultraviolet filter that allows only ultraviolet rays to pass through is provided.

  The features of the water quality improvers of the third to sixth inventions are to firstly provide a buoyant body to float the water quality improving material, and secondly to make the water quality improving material and water as wide as possible and It is in the point devised so that it may improve efficiently. In the case of the third aspect of the invention, a spherical contact structure is formed so that it can be easily rotated, so that new contact with water is likely to occur, thereby improving the water quality efficiently. Further, the fourth aspect of the present invention has an effect of efficiently improving the water quality by arranging the water quality improving material on the hanging rope so as to spread widely in the water and swinging it widely and efficiently. .

A water tank having a window part in a part, and an ultraviolet light transmission filter that blocks visible light and transmits only ultraviolet light, and a water quality improvement material mainly composed of tourmaline and / or a titanium oxide photocatalyst, Prepare a water quality improver equipped with a buoyant body with buoyancy that can float in the water, float the water quality improver in the water stored in the aquarium, and move the water convection and the water quality improver The water quality improvement is characterized by improving the water quality efficiently by improving the contact between water and the water quality improvement material by activating the titanium oxide photocatalyst of the water quality improvement device with the ultraviolet rays transmitted through the water tank. Is the method.

Hereinafter, a water quality improving method and a water quality improving device according to the present invention will be described based on illustrated embodiments. FIG. 1 is a longitudinal explanatory view showing a water quality improving method according to the first invention, and FIG. 2 is a longitudinal explanatory view showing a water quality improving method according to the second invention. FIG. 3 is a perspective view showing an embodiment of the water quality improver, and FIG. 4 shows the water quality in the partitioned water quality improver storage chamber with the water permeable outer peripheral wall of the water quality improver shown in FIG. 3 removed. It is a perspective view which shows the state in which the improvement material is accommodated. FIG. 5 is a longitudinal explanatory view showing the structure of the water quality improver shown in FIG. 3. FIG. 6 is a partially cutaway explanatory view showing the water quality improvement material storage chamber into which the water quality improvement device shown in FIG. 3 is divided. FIG. 7 is a perspective view showing another embodiment of the water quality improver. FIG. 8 is an explanatory diagram showing the force acting on the water quality improver when the water quality improver of Example 1 is submerged in water, and FIG. 9 is installed outside the spherical water quality improver according to Example 1. It is a streamline around the water quality improver when it is rotated rightward by the projected portion.

FIG. 1 is a longitudinal explanatory view showing a water quality improvement method according to the first invention. In the figure, 1 is a water tank, 2 is water stored in the water tank 1, 3 is a water supply port to the water tank 1, and 4 is a water distribution port for distributing water from the water tank 1. The spherical body floating in water is the water quality improver 5a according to the fourth invention. The spherical water quality improver 5a rotates irregularly while constantly floating and changes its posture.

FIG. 2 is a longitudinal explanatory view showing a water quality improvement method according to the second invention. In the figure, 1 is a water tank, 2 is water stored in the water tank, 3 is a water supply port to the water tank, and 4 is a water distribution port for distributing water from the water tank. The difference from FIG. 1 is that a window 7 is formed in an entrance cap 6 attached to the ceiling surface of the water tank 1, and an ultraviolet filter 8 that allows only ultraviolet rays to pass through is attached to the window 7. It has been. In the figure, reference numeral 13 denotes a lamp for indoor lighting provided outside the water tank 1. Floating in the stored water in the water tank 1 is a water quality improver 5b according to the fifth invention. The water quality improver 5b hangs a plurality of ropes 11, 11,... From a mounting frame 10 mounted around a spherical buoyancy body 9 that can float in water, and the ropes 11, 11,. , And a plurality of lumps or spheres of water quality improving materials 12, 12, 12,... Mainly composed of tourmaline and / or titanium oxide photocatalysts. In the case of the water quality improver 5b, the water quality improving materials 12, 12, 12,... Are widely dispersed from a shallow depth to a deep location and are in good contact with water in a wide range, so that the water quality improving effect is efficient. Yes, it is suitable for improving the quality of the entire stored water. In addition, if convection occurs, the water quality improver 5b itself moves and the suspended measures 11, 11, 11,... Swing, so that the water quality improving effect becomes better.

3-6 is drawing which shows the structure of the water quality improvement device 5a in detail. In the illustrated embodiment, as shown in FIG. 3, the outer peripheral wall is made of a wire mesh as a water permeable material 14, and a projection 15 like a baseball ball seam is formed on the surface thereof. As shown in FIG. 5, the internal structure is formed with a buoyant body 9 having a spherical outer peripheral wall 16 in which air 17 is sealed at the center, and a net-like structure is formed on the outer periphery of the buoyant body 9. A permeable outer peripheral wall 18 having a larger diameter is formed by a body or a water permeable material 14 having a large number of water permeable holes, and between the outer peripheral wall 16 and the permeable outer peripheral wall 18 of the buoyancy body 9. A water quality improving material storage space 19 is formed. As shown in FIG. 6, the water quality improving material storage space 19 is divided into a substantially uniform shape and area, and a plurality of water quality improving material storage chambers 20, 20, 20,. FIG. 6 is a perspective view of a main part cutout showing the state of the water quality improving material storage chambers 20, 20, 20,. In the partitioned water quality improvement material storage chambers 20, 20, 20,..., Spherical water quality improvement materials 12, 12, 12,... Mainly composed of tourmaline and / or a titanium oxide photocatalyst are provided. Is stored in an amount such that the amount of occurrence occurs (FIGS. 5 and 4).

The water quality improver 5a according to the first embodiment shown in the figure is specifically prototyped, and it is confirmed that it has a function of improving the contact between the water quality improvement material 12 and the water, next to the water surface or underwater freely, and the reason. Will be described.

As shown in FIG. 5, the water quality improvement product 5a manufactured as a prototype is configured by enclosing a gas such as air in a spherical body having a diameter of 20 cm manufactured using a non-breathable material such as a synthetic resin. The formed buoyancy body 9 is formed. A spherical water-permeable outer peripheral wall 18 having a diameter of 24.6 cm is formed on the outer periphery of the buoyancy body 9. In this embodiment, the water permeable outer peripheral wall 18 is made of wire mesh. Accordingly, a water quality improving material storage space 19 having a distance of 2.3 cm is formed between the outer periphery of the buoyancy body 9 and the water permeable outer peripheral wall 18. As shown in FIG. 6, the water quality improvement material storage space 19 is divided into eight divided water quality improvement material storage chambers 20, 20, 20,. ,... Contain water quality improving materials 12, 12, 12,... Processed into a spherical ceramic having a diameter of 2 cm as shown in FIG.

The buoyancy at which the water quality improvement product 5a of the prototype is floated is obtained by the buoyancy body 9, and the gravity to sink it is the total weight of the water quality improvement materials 12, 12, 12,. It is obtained by summing up with the total weight of the wall 18. Further, when the water quality improving materials 12, 12, 12,... Are submerged in water, buoyancy is also generated by the volume that the water quality improving materials 12, 12, 12,. FIG. 8 shows the force acting on the water quality improver 5a when the water quality improver 5a of Example 1 is submerged in the water.

As shown in FIG. 8, the buoyancy by spherical bodies and _{F 1,} the water quality improving materials 12, 12, 12 when you Shizumeyo this, ... the total weight of _{F 2} ungated, this water quality improvement agent, 12, 12, ... the total buoyancy caused by the F _3. However, in order to simplify the analysis, the total weight of the water permeable outer peripheral wall should be ignored in comparison with F ₁ , F ₂ , and F ₃ .
The buoyancy F ₁ due to the spherical body 9 can be obtained by Expression (1).

Next, if it is possible to collect n small spherical water quality improvers 12 having a diameter d on a spherical buoyant body having a radius r1, the number n can be obtained by Expression (2).

The total weight F ₂ acting on the small spherical water quality improving material 12 having a diameter d of n pieces can be obtained by Expression (3).

The total buoyancy F ₃ acting on the small spherical water quality improving material 12 having the number n of diameters d can be obtained by Expression (4).

Therefore, finally, the buoyancy F acting on the water quality improver 5a can be obtained by Expression (5).

The buoyancy of the prototype water quality improver 5a described in Example 1 is verified based on the above formulas (1) to (5).
When the buoyancy body 9 is formed as a synthetic resin sphere having a diameter of 20 cm and air is enclosed therein, a buoyancy of about 6 kg or more is obtained. In this case, r1 = 10 cm. Moreover, if the diameter of the water quality improving material 12 is 2 cm, d = 2 cm. This numerical value is expressed by Equation (1)
Substituting into yields the following result:
F ₁ = 4188.79 g
When the number of the water quality improving materials 12 filled in the water quality improving material storage space 19 at this time is determined, the following is obtained from the formula (2).
n = 484 Therefore, when this numerical value is used, the following values are obtained from the equations (3) to (5).
F ₂ = 4054.75 g
F ₃ = 2027.35 g
F = 2161.42g
Therefore, the buoyancy obtained in this case is F ₁ + F ₃ = 6216.42 g.

That is, the buoyancy of Example 1 is slightly over 6 kg, and the number of the water quality improving materials 12, 12, 12,. In this state, since F = 2216.42 g, theoretically, the water quality improver 5a floats with a part of it appearing on the water surface. Ignoring the total weight of the. Therefore, considering this weight, it is clear that the water quality improver 5b can be floated on the water surface or in the water in the state of FIG.

Further, in the case of the illustrated embodiment 1, the water quality improving material storage space 19 is divided into eight water quality improving material storage chambers 20, 20, 20,... As shown in FIG. The water quality improvement material storage chambers 20, 20, 20,... Are filled with 70 to 80% of the total volume of the water quality improvement materials 12, 12, 12,... Processed into a spherical ceramic having a diameter of 2 cm ( It is stored in an amount that creates a moderate margin). Accordingly, the stored water quality improving materials 12, 12, 12,... Rotate because part of the water quality improving materials 12, 12, 12,... Change its posture. Thus, since it is configured to be freely movable in the eight water quality improvement material storage chambers 20, 20, 20,..., It is difficult to maintain a stable posture, and the posture is always changed by a slight stimulus. Furthermore, since the protrusion 15 is formed at an appropriate position on the outer peripheral wall of the water permeable outer peripheral wall 18 so that the posture can be changed by a change in water flow or water pressure, a certain posture can be maintained. Since it is difficult and always moves and rotates in the water, the water quality improving material 12, 12, 12,...

The tourmaline and / or titanium oxide photocatalyst, which is a water quality improver 12, 12, 12,... Decomposes organic matter, exerts a surface active effect, electrolyzes water, emits far infrared rays, It is known to purify and activate water with various actions, but such action and effect can be achieved in or near water in contact with tourmaline and / or titanium oxide photocatalysts. Only difficult to happen. If the water is stationary and does not move, it is difficult and time-consuming to improve the quality of the water at a further distance. In the case where water is stored in the water tank 1 as in the present invention and distributed as needed, the water 2 and the water quality improvers 12, 12, 12 are used to meet the demand for improving the water quality of the stored water efficiently. The practicality can be secured by increasing the contact efficiency with.

Further, the water quality improver 5a shown in the first embodiment is configured such that the protrusions 15 are formed at appropriate positions on the water-permeable outer peripheral wall 18 so that the posture can be changed by changing the water flow or the water pressure. Specifically, as shown in FIG. 3, a projection 15 is formed to project on the seam of a baseball. It will be analyzed below that this protrusion 15 promotes free levitation.

FIG. 9 is a streamline around the water quality improver 5a when rotated in the right direction by the protrusion 15 installed outside the spherical water quality improver 5a. When the sphere rotates in this way, if the value obtained by integrating the flow velocity along the closed curve around the object is fast on one side of the flow and slow on the other side, lift is applied earlier. This tendency is due to the fact that the flow feeling is supplemented on the fast side and the pressure becomes small, whereas the flow pipe becomes thick and the pressure becomes large on the slow side. This is called the Magnus effect. When a sphere or the like is rotated in the flow, the surface acts on the side where the surface is rotating in the flow direction, and the sphere moves in that direction. . As described above, the water quality improver 5a according to the present invention has a baseball ball-like protrusion. Since these protrusions are not non-axially shaped, in a fluid with a high flow velocity, various rotations occur due to various coarseness of streamlines, and it is possible to float in various directions due to the force obtained by this rotation. Make it possible. Therefore, the water quality improver 5a according to the present invention is free to move, and the contact between the water quality improving material and water can be improved.

  Example 2 is an example of a water quality improver 5b of a drooping formula as shown in FIG. 7 A spherical buoyant body 9 having a buoyancy capable of floating in water as shown in FIG. A mounting frame 10 is attached to the periphery, and a plurality of ropes 11, 11, 11,... Are suspended from the mounting frame 10, and tourmaline and / or each of the ropes 11, 11, 11,. This is a water quality improver 5b in which a plurality of lumps or spherical bodies of water quality improving materials 12, 12, 12,... Mainly composed of a titanium oxide photocatalyst are attached. This water quality improver 5b is characterized in that the contact efficiency with water is improved by diffusing and arranging the water quality improving materials 12, 12, 12,... From the shallow part to the deep part of the water tank. is there. Moreover, the water quality improver 5b according to the present invention has a simple structure, is easy to manufacture, and can be freely moved in the water tank by a buoyant body, so that the water quality improvement efficiency of the entire water tank is considerably high and has practicality.

It is longitudinal cross-sectional explanatory drawing which shows the water quality improvement method which concerns on 1st invention. It is vertical explanatory drawing which shows the water quality improvement method which concerns on 2nd invention. It is a perspective view which shows one Example of a water quality improvement device. It is a perspective view which shows the state in which the water quality improvement material is accommodated in the classified water quality improvement material storage chamber in the state which removed the water-permeable outer peripheral wall of the water quality improvement device shown in FIG. FIG. 4 is a longitudinal sectional view showing the structure of the water quality improver shown in FIG. 3. FIG. 4 is a partially cutaway explanatory view showing a water quality improvement material storage chamber into which the water quality improvement device shown in FIG. 3 is divided. It is a perspective view which shows other Example 2 of a water quality improvement device. It is explanatory drawing shown about the force which acts on the said water quality improvement device, when the water quality improvement device of Example 1 is submerged in water. It is a streamline around the water quality improver when it is rotated to the right by a protrusion installed outside the spherical water quality improver.

Explanation of symbols

1: Water tank 2: Water 3: Supply port 4: Water distribution port 5a: Water quality improver 5b: Water quality improver 6: Cap 7: Window 8: Ultraviolet filter 9: Buoyant body 10: Mounting frame 11: Strip 12: Water quality improvement Material 13: Lamp for indoor lighting 14: Water permeable material 15: Projection 16: Outer wall 17: Air 18: Water permeable outer wall 19: Water quality improving material storage space 20: Water quality improving material storage room

Claims (6)

A water quality improvement device comprising a water quality improvement material mainly composed of tourmaline and / or a titanium oxide photocatalyst and a buoyancy body capable of floating the water quality improvement material in water is housed in a water tank. A water quality improvement method characterized in that the water quality improvement material and the water are in good contact with each other by floating in water and convection of the water and migration of the water quality improver. A water tank in which a window is provided in a part, and an ultraviolet transmission filter that blocks visible light and transmits only ultraviolet rays is attached to the window,
A water quality improver comprising a water quality improving material mainly composed of tourmaline and / or a titanium oxide photocatalyst, and a buoyant body having a buoyancy capable of floating the water quality improving material in water,
Float a water quality improver in the water stored in the tank,
With good convection of water and migration of the water quality improver, good contact between the water and the water quality improving material,
A method for improving water quality, wherein a titanium oxide photocatalyst of a water quality improver is activated by ultraviolet rays transmitted through a water tank. A water quality improver comprising a water quality improving material mainly composed of tourmaline and / or a titanium oxide-based photocatalyst, and a buoyancy body having a buoyancy capable of floating in the water. A spherical permeable outer peripheral wall having a larger diameter is formed on the outer periphery of a spherical buoyant body having a buoyancy capable of floating in water, with a net-like body or a water-permeable material having a large number of water-permeable holes, and the buoyancy Forming a water quality improvement material storage space between the outer periphery of the body and the water permeable outer peripheral wall, dividing the water quality improvement material storage space and partitioning a plurality of water quality improvement material storage chambers;
A plurality of water quality improvement material storage chambers are divided into spherical water quality improvement materials mainly composed of tourmaline and / or titanium oxide photocatalysts. The material is made freely movable in the water quality improvement material storage room,
A water quality improver characterized in that a protrusion is formed at an appropriate position of the water permeable outer peripheral wall so that the posture can be changed by a change in water flow or water pressure. A plurality of ropes are suspended from a spherical buoyant body having a buoyancy capable of floating in water or from a mounting frame attached to the buoyancy body, and each of the ropes is mainly composed of tourmaline and / or a titanium oxide photocatalyst. A water quality improver comprising a plurality of lumps or spheres of water quality improving material to be attached. A water quality improver characterized in that the water quality improving material is a ceramic lump or spherical body mainly composed of tourmaline and / or a titanium oxide photocatalyst.