JP7217163B2 - Display method of water purifier - Google Patents

Description

The present invention relates to a water purifier display method and a water purifier display device.

Conventionally, a water purifier display method for presenting the water purifying capacity of the water purifier to general users is known. For example, by purifying raw water such as milk, orange juice, and water containing colored particles such as iron rust (rouge) and pigments with a water purifier and showing how the purified water becomes transparent, fine particles can be removed from the turbid raw water. A method for visually recognizing that a substance has the ability to remove is known (for example, Non-Patent Document 1 and Non-Patent Document 2).

In addition, as a method for observing the capture of fine particles in a liquid by a microfiltration membrane, a bubble point test method for microfiltration membrane elements and modules according to JISK3832, a method for measuring the pore size of a microfiltration membrane such as a mercury injection method, and a microfiltration method according to JISK3835 A completeness test of particle trapping shown in the bacteria trapping performance test method of membrane elements and modules, and a method of measuring the trapping rate for each molecular weight or particle diameter and expressing the trapping performance of fine particles as a fraction characteristic are known.

``Why choose Cleansui│For mail order water purifiers, Cleansui official shop'', [online], Mitsubishi Chemical Cleansui Co., Ltd. [searched October 23, 2018], Internet <URL: https://www.rakuten .ne.jp/gold/cleansui/reason01.html＞ ”Kakaku.com-[PR planning] P2 All 6 model comparison review! Thorough investigation of “pot-type water purifier” ability”, [online], Kakaku.com Co., Ltd. [searched on October 23, 2018], Internet <URL: http://kakaku.com/article/pr/10/04cleansui/p2.html#test1>

However, raw water such as milk, orange juice, and water containing colored particles such as iron rust and pigments used in the prior art as described above is incomparable to drinking water such as tap water, which is the water to be treated by household water purifiers. It is highly colored and cloudy, which is a far cry from the clear drinking water that viewers usually use. Therefore, there is a problem that it is difficult to intuitively connect with the water purification ability of drinking water.

One aspect of the present invention is that it is possible to easily present the water purification ability of a water purifier by using raw water with transparency close to that of drinking water, which is likened to tap water or the like that is usually used at home, and to present it in an easy-to-understand manner. The purpose is to provide a new display method for water purifiers.

In order to solve the above problems, a water purifier display method according to an aspect of the present invention is a water purifier display method comprising a raw water storage tank, a purified water storage tank, and a water purification cartridge, wherein the raw water Raw water containing luminescent particles is supplied to the storage tank, and purified water obtained by purifying the raw water with the water purification cartridge is supplied to the purified water storage tank.

In order to solve the above problems, a water purifier display device according to an aspect of the present invention is a water purifier display device including a water purifier, a light source, and a light shielding member, the water purifier comprising: A raw water storage tank, a purified water storage tank, and a water purification cartridge are provided, the light source irradiates the water purifier with ultraviolet rays, and at least part of the periphery of the water purifier is shielded by the light shielding member. be.

According to one aspect of the present invention, it is possible to present the water purification capability of a water purifier in an easy-to-understand manner by using raw water that is similar to drinking water and is similar to tap water that is usually used at home.

1 is a diagram schematically showing the structure of a water purifier display device 100. FIG.

<How to display the water purifier>
A water purifier display method according to an aspect of the present invention is a water purifier display method including a raw water storage tank, a purified water storage tank, and a water purification cartridge, wherein raw water containing luminescent particles is supplied to the raw water storage tank. and supplying purified water obtained by purifying raw water with a water purification cartridge to a purified water storage tank. Since luminescent particles emit light, they can be observed over a wider range than their actual size. For this reason, the method according to one embodiment of the present invention using luminescent particles is easier to visually recognize than the conventional method using non-luminescent particles such as colored particles such as iron rust in which the size of the particles themselves is observed. In addition, it is sufficient to simply supply raw water to the raw water storage tank, and specialized skills and knowledge are not required. Therefore, it is possible to present the water purification capacity of the water purifier more easily and easily than the conventional method. In particular, the water purification capability of the water purifier can be presented in a more comprehensible manner by using raw water that is nearly transparent with little turbidity, such as tap water that is usually used at home. In other words, it is possible to intuitively and easily convey to the viewer that even water that looks transparent, such as tap water that is usually used at home, actually contains a large number of particles. Drinking water such as tap water is supplied within the range of tap water quality standards, but even water within the standards contains fine particles, various germs, and the like. In addition, since a wider range than the actual size can be observed as described above, even if the concentration is small, the water purification ability can be presented in an easy-to-understand manner. Therefore, there is also the advantage that clogging is less likely to occur in a filter material that can capture the particles. In other words, in the method of using raw water such as water, milk, orange juice, etc. containing coloring components such as iron rust, in order to make it easier for viewers to understand the difference between the color of the raw water and the color of the purified water, the coloring components contained in the raw water concentration must be high. Therefore, there is a problem that the filter material capable of capturing the particles is clogged at an early stage. Therefore, the burden on the practitioner is heavy due to the need for long-term filtration and the need to frequently replace the filter material capable of capturing the particles. In order to avoid clogging of the filter material capable of capturing the particles, it is necessary to reduce the concentration of the coloring component contained in the raw water. However, if the concentration of the coloring component contained in the raw water is reduced to a concentration that can avoid clogging of the filter material capable of capturing the particles, the color of the raw water becomes so pale that it is difficult to distinguish it from clear water. If the color of the raw water is light, the conventional method has a problem that the difference between the color of the raw water and the color of the purified water cannot be easily conveyed, and the water purification capability of the water purifier cannot be fully presented. In addition, milk and orange juice contain different particle components depending on the manufacturer, production period, production area, etc., and there is a risk that the condition intended by the exhibitor cannot be displayed. There is also However, according to one aspect of the present invention, even such a problem can be solved. In addition, since it can be performed without using special analytical equipment, specialized skills, or knowledge, it is possible to more easily present the water purification ability. Hereinafter, in the water purifier display method according to one aspect of the present invention, a water purifier having a filtration function will be described as an example, but the present invention is not limited to this and can be applied to various water purifiers. In particular, it is suitable as a display method for fine-mesh microfiltration membranes and the like.

In the water purifier display method according to one aspect of the present invention, the purification efficiency of the water purification cartridge can be presented to the viewer in an easy-to-understand manner, so water purification cartridges with various purification efficiencies can be used. For example, a water purification cartridge with a high removal rate of luminescent particles may be used, or a water purification cartridge with a low removal rate of luminescent particles may be used. When a water purification cartridge with a high removal rate of luminescent particles is used, the high water purification capability can be presented to the viewer in an easy-to-understand manner. In addition, when a water purification cartridge with a low luminescent particle removal rate is used, the low water purification capability can be presented to the viewer in an easy-to-understand manner.

In addition, the method for displaying a water purifier according to an aspect of the present invention may use water purification cartridges having different luminescent particle removal rates. When using water purification cartridges with different luminescent particle removal rates, a plurality of water purifiers each having different types of water purifying cartridges may be used, or water purifiers having the same water purifying cartridge may be used. It may be presented to the viewer that the same water purification cartridge has different removal rates depending on the type of luminescent particles, or that the same luminescent particles have different removal rates depending on the configuration of the water purifier. may be presented to Using the same water purifier is intended to indicate a change in removal rate of luminescent particles due to deterioration of one water purifier over time. In this case, the viewer may be presented with a moving image or a still image in which the filtering is performed in chronological order. In addition to this case, the viewer is presented with a moving image and a still image of supplying raw water containing luminescent particles to the raw water storage tank and supplying purified water obtained by purifying the raw water with a water purification cartridge to the purified water storage tank. A method is also included in the technical scope of the present invention.

When a plurality of water purifiers of different types are used, a water purifier with a water purification cartridge with a high luminescent particle removal rate and a water purifier with a low luminescent particle removal rate may be used. For example, a water purifier equipped with a water purification cartridge equipped with a hollow fiber membrane with a high removal rate of luminescent particles and a water purifier equipped with a water purification cartridge without a hollow fiber membrane are arranged side by side. A viewer may be presented with the difference in water purification ability of the water purifiers in an easy-to-understand manner. This makes it possible to present the difference in water purification capacity of each water purifier in an easy-to-understand manner to the viewer.

Specifically, in the method for displaying a water purifier according to an aspect of the present invention, raw water containing luminescent particles may be supplied to the raw water storage tank. The supplied raw water is purified by the water purification cartridge, and the purified water is supplied to the purified water storage tank. As a result, when raw water is purified by filtration or the like by the water purification cartridge and the luminescent particles therein are removed from the raw water by the water purification cartridge, the purified water has a lower concentration of luminescent particles than the raw water. Therefore, the light emitted from purified water becomes weaker (darker) than the light emitted from raw water.

[Luminous particles]
Luminescent particles are particles that emit visible light. By including the luminescent particles in the raw water, the difference between the amount of the luminescent particles contained in the raw water and the amount of the particles contained in the purified water due to the light emission of the luminescent particles can be presented in an easily understandable manner. If the luminous intensity of purified water is seen to be lower than the luminous intensity of raw water, it is possible to present to the viewer in an easy-to-understand manner that the water purifier used has a purification capability of capturing luminescent particles.

The particle size of the luminescent particles may be appropriately selected. For example, when presenting the water purification capacity of a water purifier equipped with a water purification cartridge equipped with a hollow fiber membrane, fine particles having a small particle size are preferable, for example, the particle size is larger than 0.1 μm and 1 mm or less. is preferred. Further, the particle size of the fine particles may be, for example, a size assuming iron rust or the like, or a size assuming microplastics. For example, assuming microplastics, the thickness may be 5 mm or less.

The specific gravity of the luminescent particles (ratio of densities based on distilled water at 4 degrees Celsius) is such that the luminescent particles do not float to the surface of the purified water and do not settle prematurely and remain suspended in the water evenly. From the point of view, it is preferably 1 to 2. Conventionally, there is a method using iron rust (iron oxide (III), red iron oxide) as a method using raw water turbid with a coloring component. However, since iron rust has a specific gravity of 5.24, it precipitates during filtration. Therefore, it takes time and effort to constantly stir the raw water to maintain the color of the treated water, but according to one aspect of the present invention, , the water purification ability can be presented more easily without such trouble. By being able to reduce the concentration of the luminescent particles, the water purification ability of the water purifier can be easily demonstrated repeatedly (for a long time). Moreover, when iron rust is used, the concentration of iron rust contained in the raw water must be increased, so there is a possibility that the viewer may perceive the water as a liquid different from the raw water such as tap water. According to one aspect of the present invention, since the concentration of luminescent particles contained in the raw water can be reduced, the water usually looks transparent before being irradiated with ultraviolet rays or before being darkened, so the above problems can be avoided. can be done. By using the luminescent particles, the luminescent particles can be presented to the viewer as if they were microplastics, for example.

The luminescent particles may be those that emit light, for example, they may be fluorescent particles that emit light when irradiated with ultraviolet light, which is invisible light, or phosphorescent particles that emit light in the dark without ultraviolet light irradiation (noctilucent). It may be particles. Since the luminescent particles are at least one of fluorescent particles and phosphorescent particles, extra visible light other than the light emitted by the luminescent particles is not included in the range observed by the viewer, so the light emitted by the luminescent particles can be observed more clearly. can do. Alternatively, particles obtained by applying a light-emitting component to the particle surface may be used.

When fluorescent particles are used as the luminescent particles, the light source irradiates the water purifier with ultraviolet rays from the viewpoint of making the fluorescent particles emit fluorescence and visualizing the difference between the fluorescence emission intensity of raw water and the fluorescence emission intensity of purified water. is preferred. Examples of the fluorescent particles include Cryptoracer (registered trademark), which is a simulated particle of Cryptosporidium, and particles coated with a fluorescent component on at least part of the surface, preferably the entire surface. Examples of the cryptotracer include Nihon Koken Kogyo Co., Ltd. Cryptotracer M (particle diameter: 3.1 μm), Nihon Koken Kogyo Co., Ltd. Cryptotracer No. 1 (particle diameter: 5 μm), and the like. Examples of fluorescent components include ceramics such as alumina and sialon.

The luminous particles include, for example, particles coated with a phosphorescent (luminous) component on at least part of the surface, preferably the entire surface.

The specific gravity of the particles coated with the fluorescent component can be adjusted to the range described above, for example, considering the specific gravity of the luminescent component and the specific gravity of the particles. Specifically, for example, when using a ceramic-based fluorescent component such as alumina or sialon with a specific gravity of 3 to 4, by adopting particles with a specific gravity of about 1, the specific gravity of the fluorescent component is adjusted to the above-described range. can do.

It is preferable to use raw water and raw water storage tanks that are transparent from at least one direction under visible light, to which raw water containing luminescent particles is supplied. As a result, the raw water containing the luminescent particles used at the time of the exhibition and the raw water such as tap water not containing the luminescent particles, which is usually seen by viewers in scenes other than the exhibition of the present invention, are separate liquids. can be presented to the viewer in a way that does not make them feel that After showing the viewer that the raw water is transparent under visible light, the luminescent particles contained in the raw water can be presented to the viewer by causing the luminescent particles to emit light. As a result, the viewer can more easily and intuitively recognize that raw water, which is transparent under visible light and cannot visually recognize the presence of the luminescent particles, actually contains the luminescent particles. In other words, the viewer can intuitively and easily understand that water that looks transparent actually contains many particles.

In this specification, the term “transparent” refers to water with a degree of transparency that does not give a sense of discomfort, including the background, compared to tap water that is usually used under natural light (under visible light), and is visually turbid. It means a state in which you can hardly feel the For example, even if tap water, bottled water, etc. and raw water containing luminescent particles do not look strange against a background of white, gray, etc., they are also “transparent”.

As an example, an acrylic resin container supplied with raw water obtained by adding Cryptotracer M (particle size: 3.1 μm) manufactured by Nihon Koken Kogyo Co., Ltd. to tap water (water within the water quality standards of tap water in Japan). It is intended to have a visible light transparency equal to or greater than the visible light transparency of the For example, if the thickness (depth) of the container is 15 cm or more in the direction viewed from the viewer side, the transparency of the raw water is 15 cm or more. Also, the transparent direction may be the direction in which the viewer sees. In other words, it is sufficient that the raw water storage tank to which the raw water containing the luminescent particles is supplied is transparent at least from the direction that the viewer can see. In order to make the water purifier look more transparent, the transparency is preferably at least twice the depth of the water purifier, at least in the direction in which the viewer can see. Three times or more is more preferable. Specifically, it is preferable that the degree of see-through is greater than or equal to the thickness (depth) direction of the container at least in the direction in which the viewer can see. While the water is transparent as described above, it is preferable that the water contain luminescent particles to such an extent that the presence of the fine particles can be visually recognized by irradiating the water with ultraviolet rays as described later. As a result, under natural light (visible light), the viewer cannot see the difference from tap water, including the background (that is, it does not make the viewer feel uncomfortable that it is different from ordinary water). ), by irradiating with ultraviolet rays, the presence of fine particles can be visually recognized by a viewer, and the fine particles contained in the tap water can be recognized.

[Selection process]
A method for displaying a water purifier according to an aspect of the present invention includes selecting a raw water storage tank to which raw water containing luminescent particles is supplied so that the raw water storage tank is transparent from at least one direction under visible light, emitting light. It is preferable to include at least one selection step of selecting the type of particles and selecting the concentration of the luminescent particles. For example, by selecting the type of wall material of the raw water storage tank, the type and concentration of the luminescent particles according to the display environment, etc., it is possible to adjust the display conditions so that the viewer can understand them more easily. The type of wall material of the raw water storage tank is, for example, the material and thickness of the wall material. The types of luminescent particles are, for example, material, refractive index, particle size, and the like.

Further, for example, when using luminescent particles having a refractive index similar to that of water, or when using luminescent particles with a large particle size, clogging of the filter material capable of capturing the luminescent particles in the water purification cartridge may occur. The concentration of luminescent particles can be relatively high to the extent that this does not occur. In the case of using luminescent particles having a refractive index that is relatively different from the refractive index of water, or in the case of using luminescent particles with a small particle size, among such luminescent particles, luminescent particles with high emission intensity should be selected. select. As a result, the difference between the luminous intensity of raw water and the luminous intensity of purified water can be presented to the viewer in an easy-to-understand manner even if the concentration is lowered to a level that looks transparent. As described above, according to one aspect of the present invention, the concentration of luminescent particles contained in raw water can be made lower than in the conventional method using particles that do not emit light. to the extent that it can be recognized. In addition, for example, when hollow particles are used as a filter medium of a water purification cartridge and it is desired to present the goodness of purification efficiency and the length of life, viewers can see the concentration of luminescent particles contained in the raw water and the luminous intensity of the raw water. It may be appropriately prepared so that the intensity can be appropriately adjusted, the difference between the emission intensity of raw water and the emission intensity of purified water can be easily recognized, clogging of the hollow fiber membrane of the water purification cartridge can be prevented, and the replacement frequency of the water purification cartridge can be reduced.

[Water purifier]
A water purifier used in a water purifier display method according to an aspect of the present invention includes a raw water storage tank, a purified water storage tank, and a water purification cartridge. Here, a diagram schematically showing the structure of the water purifier display device 100 will be described with reference to FIG. FIG. 1 is a diagram schematically showing the structure of a water purifier display device 100, and also schematically shows the structure of a water purifier 1, which is one embodiment of a water purifier used in a water purifier display method according to one embodiment of the present invention. shown in The water purifier 1 includes a raw water reservoir 2, a purified water reservoir 3, a purified water cartridge 4 and an O-ring 5, as shown in FIG.
(Raw water storage tank)
The raw water storage tank 2 is a tank for storing raw water. The raw water storage tank 2 is provided with a raw water supply portion 21 that supplies raw water to the water purification cartridge 4 . Also, the water purification cartridge 4 is attached to the raw water supply unit 21 . When the raw water is purified, the raw water supply unit 21 is positioned below the raw water storage tank 2 in the vertical direction as shown in FIG. An exhibitor using the water purifier display method according to one aspect of the present invention can supply raw water to the raw water storage tank 2 through the opening 22 provided on the opposite side of the raw water supply unit 21 in the vertical direction. In the present invention, the aspect of supplying raw water to the raw water storage tank 2 is not limited to the aspect of the present embodiment. Although the water purification cartridge 4 is attached to the raw water supply unit 21 in this embodiment, the present invention is not limited to the manner in which the water purification cartridge 4 is attached to the raw water storage tank. The clean water cartridge may be attached to the clean water reservoir.

The raw water supply part 21 side of the raw water storage tank 2 is structured so that the purified water cartridge 4 can be attached and can be attached to the purified water receiving part 31 of the purified water storage tank 3 .

The raw water storage tank of the water purifier is not limited to this embodiment, and for example, its size and shape can be appropriately selected according to the size and shape of the water purification cartridge. From the viewpoint of visibility of the light emission of the luminescent particles contained in the raw water, the material of the raw water storage tank may be, for example, a material that has light transmittance and does not emit the same light as the luminescent particles. When the luminescent particles are fluorescent particles that emit light when irradiated with ultraviolet rays, the material of the raw water storage tank 2 preferably does not contain fluorescent particles and does not absorb ultraviolet rays. As long as the water purifier has the properties described above, conventionally known resins (for example, acrylic resin) can be used as the material of the water purifier.

(purified water storage tank)
The purified water storage tank 3 is a tank for supplying water purified by the purified water cartridge 4 . The purified water receiving portion 31, which is the portion of the purified water storage tank 3 that receives purified water, has a shape in which a part of the tip of the raw water storage tank 2 on the side of the raw water supply portion 21 enters and fits inside. Thereby, it is possible to connect the purified water storage tank 3 vertically downward and the raw water storage tank 2 vertically upward. In addition, although this embodiment describes an aspect in which the water purification cartridge 4 is attached to the raw water storage tank 2, in one aspect of the present invention, the water purification cartridge may be attached to the water purification storage tank.

The purified water storage tank of the water purifier is not limited to this embodiment, and for example, its size and shape can be appropriately selected according to the size and shape of the water purification cartridge. The material of the purified water storage tank 3 should be, for example, light-transmissive and not emit the same light as the luminescent particles, from the viewpoint of visibility of the luminescence of the luminescent particles contained in the purified water. When the luminescent particles are fluorescent particles that emit light when irradiated with ultraviolet rays, the material of the purified water storage tank 3 preferably does not contain fluorescent particles and does not absorb ultraviolet rays. Conventionally known resins (for example, acrylic resins) or the like can be employed as the material of the water purifier as long as they have the properties. Both the materials of the raw water storage tank 2 and the purified water storage tank 3 preferably have the above-described properties so that the viewer can see the difference before and after the light emission.

(water purification cartridge)
A water purification cartridge is a device for purifying raw water. The water purification cartridge 4 has a housing 41 . A filter medium (not shown) is stored in the housing 41 . Further, the housing 41 is provided with a raw water inlet 42 , a purified water outlet 43 and a flange 44 . The raw water inlet 42 is an opening for introducing raw water into the water purification cartridge 4 . The purified water outlet 43 is an opening for discharging the water that has passed through the filter medium to the outside of the purified water cartridge 4 . Purified water coming out of the purified water outlet 43 is supplied to the purified water storage tank 3 . The collar portion 44 is a member for attaching the water purification cartridge 4 to the raw water supply portion 21 of the raw water storage tank 2 and fixing the position thereof. By providing the water purification cartridge 4 with the flange portion 44, it is possible to prevent the water purification cartridge 4 from being displaced from the raw water storage tank 2 and the water purification cartridge 4 from falling.

An O-ring 5 is attached to the water purification cartridge 4 between the raw water inlet 42 and the flange 44 . By attaching the water purification cartridge 4 with the O-ring 5 to the raw water storage tank 2, the watertightness can be further improved. In addition, it is possible to prevent the water purification cartridge 4 from being misaligned with the raw water storage tank 2 and the water purification cartridge 4 from falling. The number of O-rings 5 may be singular or plural. As the material of the O-ring 5, a material having elasticity may be appropriately selected. Examples thereof include nitrile rubber, fluorine rubber, ethylene propylene rubber, urethane rubber, and silicone rubber. Silicone rubber is more preferred due to its stability.

At least part of the housing 41, preferably the material on the side that is presented to the viewer, has, for example, light transmission properties from the viewpoint of ease of viewing the light emission of the luminescent particles captured by the filter medium, and is compatible with the luminescent particles. It is preferable that they do not emit the same light. In the case where the luminescent particles are fluorescent particles that emit light when irradiated with ultraviolet rays, at least a part of the housing 41, preferably the material on the side presented to the viewer, does not contain fluorescent particles and does not absorb ultraviolet rays. is preferably Conventionally known resins (for example, acrylic resins) or the like can be employed as the material of the water purifier as long as they have the properties. Since the viewer can see how the luminescent particles are captured by the filter medium, the water purification capability of the water purifier can be presented in a more comprehensible manner.

As the filter medium, a conventionally known filter medium for purifying water may be employed, and examples thereof include adsorbents and hollow fiber membranes.

Examples of the adsorbent include powder adsorbents, granular adsorbents obtained by granulating the powder adsorbents, and fibrous adsorbents. Specific examples of adsorbents include powder adsorbents, granular adsorbents obtained by granulating the powder adsorbents, and fibrous adsorbents. Such adsorbents include, for example, natural adsorbents (natural zeolite, silver zeolite, acid clay, etc.), synthetic adsorbents (synthetic zeolite, bacteria-adsorbing polymer, hydroxyapatite, molecular sieve, silica gel, silica alumina Inorganic adsorbents such as gel adsorbents, porous glass, titanium silicate, etc.; Activated carbon, synthetic fibrous activated carbon, ion exchange resin (cation exchange resin, anion exchange resin), ion exchange fiber, chelate resin, chelate fiber, super absorbent resin, super absorbent fiber, oil absorbent resin, oil absorbent, etc. Well-known ones, such as an organic adsorption agent, are mentioned. Among others, it is desirable to have silver-impregnated activated carbon with antibacterial properties.

As the hollow fiber membrane, various porous and tubular hollow fiber membranes can be used. Various materials such as methyl methacrylate (PMMA), polysulfone, polyacrylonitrile, polytetrafluoroethylene, polyvinylidene fluoride (PVDF), polycarbonate, polyester, polyamide, aromatic polyamide, etc. can be used. Among them, polyolefin-based hollow fiber membranes such as polyethylene and polypropylene are preferable in consideration of the handling properties and processability of the hollow fiber membranes. The water purification cartridge 4 preferably has a hollow fiber membrane from the viewpoint of being able to capture particles that cannot be captured by the adsorbent. The upper limit of the pore diameter of the hollow fiber membrane is preferably 0.5 μm or less, more preferably 0.1 μm or less, from the viewpoint of capturing fine particles.

〔light source〕
The light source is a device for irradiating the water purifier with ultraviolet rays. When particles that emit light when irradiated with light such as ultraviolet rays are used as the luminescent particles, it is preferable to use a light source to irradiate the water purifier with light for the particles to emit light. For example, when fluorescent particles that emit light by ultraviolet rays are used, a light source capable of irradiating ultraviolet rays may be used. The size, shape and number of the light sources are not particularly limited, and can be appropriately selected according to the size, shape and number of the water purifier.

When fluorescent particles that emit light when irradiated with ultraviolet rays are used as the luminescent particles, the intensity of the ultraviolet rays irradiated by the light source may be appropriately adjusted to the extent that the fluorescent particles can sufficiently emit light.

As the light source, for example, known light sources such as LEDs, quinocene lamps, metal halide lamps, and mercury xenon lamps can be used. The light source may emit light guided by an optical fiber from an ultraviolet irradiation device.

[Light shielding member]
In the water purifier display method according to one aspect of the present invention, it is preferable to use a light shielding member. The light shielding member shields at least part of the periphery of the water purifier. By using the light shielding member, it is possible to reduce the influence of ambient light on the light emitted by the luminescent particles, thereby making the luminescence of the luminescent particles easier to see. The light shielding member preferably has a shape in which a part of the side of the water purifier is opened in order to present the viewer with the light emission of the raw water, the light emission of the purified water, and the light emission of the luminescent particles captured by the filter medium of the water purification cartridge. The light shielding member preferably covers the top of the water purifier, and more preferably has a shape with an opening for presenting the light emission to the viewer. The light shielding member may be a wall of the room, or the water purifier may be exhibited by turning off the lights in the room, as long as the illuminance of the light emitting particles can be easily seen by dimming to a predetermined illuminance or less. The light-shielding member may be made of any material as long as it has a light-shielding property, and examples thereof include wood, metal, and cloth. It is preferable that it is a hard one such as.

The illuminance inside the light shielding member may be appropriately adjusted to the extent that the light emission of the fluorescent particles can be easily seen by the viewer.

<Display of water purifier>
Next, one embodiment of the water purifier display device of the present invention will be described with reference to FIG. The description of the water purifier display device according to one aspect of the present invention conforms to the description given so far, and the same description will not be repeated.

FIG. 1 is a diagram schematically showing the structure of a display device 100 for a water purifier. A water purifier display device 100 according to the present embodiment includes a water purifier 1, a light source 60, and a light shielding member 7, as shown in FIG. The water purifier 1 is as described above.

〔light source〕
The light source 60 is a light source for irradiating the water purifier 1 with light. In this embodiment, it is assumed that fluorescent particles that emit light when irradiated with ultraviolet rays are used as the luminescent particles. The light source 60 is attached inside the light shielding member 7 . A flat light source may be arranged above and/or below the water purifier 1 . The light sources 60 are preferably arranged above and below the water purifier 1, more preferably on the left and right sides in addition to the above and below, from the viewpoint that the light emission of the luminescent particles is easily visible. In addition, the arrangement of the light source is not limited to this embodiment, and may be arranged between the water purifier and the light shielding member.

The number of light sources 60 may be singular or plural as long as the entire water purifier 1 can be irradiated with ultraviolet rays, but plural is preferable. If there are two light sources 60, they are preferably installed on both sides of the water purifier 1 as shown in FIG.

The light source 60 may be, for example, a light source having a length equal to or greater than the length of the water purifier 1 capable of illuminating the entire water purifier 1, as shown in FIG. In addition, from the viewpoint of making it easier for the viewer to see the light emission of the fluorescent particles, a spot irradiation light source 61 that irradiates light only partially may be used together.

[Light shielding member]
The light shielding member 7 is a member for shielding the ambient light of the water purifier 1 . This can reduce the influence on the light emitted by the luminescent particles. The light shielding member 7 has a shape surrounding the water purifier 1, and has a shape that is open in a direction in which the viewer can see the display.

[Exhibition method using exhibition equipment]
A mode of carrying out the display method of the water purifier of the present invention using the display device 100 will be described. First, the water purifier 1 is placed at a position where it is surrounded by the light shielding member 7 and is irradiated with the light from the light source 60 . Next, the water purifier 1 is irradiated with light from the light source 60 . Next, raw water containing luminescent particles is supplied to the raw water storage tank 2 of the water purifier 1 . As a result, purified water purified by the water purification cartridge 4 is supplied to the purified water storage tank 3 . Viewers of the exhibition can easily see the performance of the water purification cartridge from the difference in light between the raw water remaining in the raw water storage tank 2 and the purified water in the purified water storage tank 3 . In addition, when the housing 41 of the water purification cartridge 4 is light transmissive, the luminescent particles are captured by the filter medium, so that the filter medium after removing the luminescent particles from the raw water can be visually recognized.

If the purified water purified by the water purification cartridge does not glow even if it is irradiated with light, the viewer may think that ultraviolet rays are not being irradiated. A marker 32, such as a fluorescent marker that emits light when irradiated with ultraviolet light, may be used to clearly show that the luminous particles have been filtered so that they do not emit light even when irradiated with light. The marker 32 may be attached to the surface of the purified water storage tank 3 or may be placed inside the purified water storage tank 3 . When the marker 32 emits light, it can be shown to the viewer that the purified water is reliably irradiated with the light.

The present invention is not limited to the above-described embodiments, but can be modified in various ways within the scope of the claims, and can be obtained by appropriately combining technical means disclosed in different embodiments. is also included in the technical scope of the present invention.

EXAMPLES The present invention will be specifically described below with reference to Examples, but the present invention is not limited to these.

<Example 1>
As fluorescent particles, Nihon Koken Kogyo Co., Ltd. Cryptotracer M (particle size: 3.1 μm) was used, and ultraviolet irradiation (light source: UV-LED light 9 lights black light PW-UV943H-04 (manufactured by Contec Co., Ltd., Under peak wavelength: 375 nm)), the concentration of cryptotracer M in the water to be treated was examined, with the whole water to be treated appearing to emit fluorescence. Tap water (water within the water quality standards of tap water in Japan) was used as raw water. Cryptotracer M of 10 ¹⁰ /L was diluted 100 times to prepare 10 ⁸ /L, and the concentration of the water to be treated was 2 mg/L. As a result of adding Cryptotracer M to the raw water at a concentration of 2 mg/L, it was observed that the entire treated water emitted fluorescence. In addition, when 300 mL of water to be treated in which the concentration of cryptotracer M was adjusted to 2 mg/L was supplied to an acrylic container and visually observed from the side of the container, it was found that under natural light (light source: white fluorescent lamp) , the water was clear and transparent in appearance compared to tap water. Since the density of cryptotracer M is 1.2 g/cm ³ , the volume of cryptotracer M added to the water to be treated for observation was 1.7 mm ³ /L.

Next, the water to be treated, which had been prepared to have a cryptotracer M concentration of 2 mg/L, was irradiated with ultraviolet rays and fluorescence was observed.

1 L of the water to be treated to which Cryptotracer M has been added is placed in a hollow fiber membrane (EX270TH-25 (EX270TH-25 ( Mitsubishi Chemical Corporation), membrane area 0.14m ² ) was attached to a cartridge, and a gravity filtration type water purifier was prepared and filtered. The raw water storage tank and the purified water storage tank used acrylic resin containers with a diameter of 10 cm. A water purifying cartridge with a transparent housing, not filled with an adsorbent, and equipped with only a hollow fiber membrane was prepared for display and used so that the filter medium inside could be seen. The water purification cartridge was attached to the lower surface of the raw water storage tank. From the observer side, since the diameter (depth) of the raw water and the purified water storage tank is the maximum thickness (depth), the transparency of the water to be treated is 10 cm or more. It was prepared so that it could be seen transparently. At the start of filtration, the raw water was irradiated with ultraviolet rays to make the observer aware that the fine particles were mixed. When the treated water (filtered water) in the purified water storage tank was observed, it was confirmed that it looked transparent even when irradiated with ultraviolet rays. In addition, it was easy to visually recognize by installing a light source in each of the upper and lower sides of a water purifier. In addition, when irradiated from the left and right, it was easier to visually recognize.

<Comparative Example 1>
Iron oxide (III) produced by Wako Pure Chemical Industries, Ltd. was used as the colored particles, and the concentration of iron oxide (III) at which the entire water to be treated appeared colored was examined. As a result, when iron (III) oxide was added so that the concentration became 1000 mg/L, it was observed that the whole water to be treated was colored. Since the density of iron (III) oxide is 5.2 g/cm ³ , the volume of fine particles added to the liquid to be treated for observation was 192.3 mg/L.

Next, when the coloration of the water to be treated, which had been prepared to have a concentration of iron (III) oxide of 1000 mg/L, was observed, it was found that the coloration was generally lighter than the initial color, and iron (III) oxide was precipitated at the bottom of the vessel. was observed.

1 L of the water to be treated to which iron (III) oxide was added was filtered using the gravity filtration type water purifier. When the treated water (filtered water) in the purified water storage tank was observed, it was transparent.

<Additional notes>
As described above, a method for displaying a water purifier according to an aspect of the present invention is a method for displaying a water purifier including a raw water storage tank, a purified water storage tank, and a water purification cartridge. is supplied, and purified water obtained by purifying the raw water by the water purification cartridge is supplied to the purified water storage tank.

In addition, it is preferable to use raw water and a raw water storage tank which are transparent from at least one direction under visible light, to which the raw water containing the luminescent particles is supplied.

In addition, selection of the raw water storage tank, selection of the type of luminescent particles, and selection of the concentration of the luminescent particles are performed so that the raw water storage tank to which the raw water containing the luminescent particles is supplied is transparent from at least one direction under visible light. Preferably, the selection includes at least one selection step.

Moreover, it is preferable that the luminescent particles are fluorescent particles that emit light when irradiated with ultraviolet rays.

Moreover, it is preferable that the light source irradiates the water purifier with the ultraviolet rays.

Further, it is preferable to use water purification cartridges having different removal rates of the luminescent particles.

Further, it is more preferable that the specific gravity of the luminescent particles is 1-2.

Moreover, it is preferable that the light shielding member shields at least part of the periphery of the water purifier.

Further, a water purifier display device according to an aspect of the present invention is a water purifier display device including a water purifier, a light source, and a light shielding member, wherein the water purifier includes a raw water storage tank and a purified water storage tank. A tank and a water purification cartridge are provided, the light source irradiates the water purifier with ultraviolet light, and at least part of the periphery of the water purifier is shielded by the light shielding member.

A water purifier display method according to an aspect of the present invention can be used, for example, to present a water purifying capacity of a water purifier.

REFERENCE SIGNS LIST 1 water purifier 2 raw water storage tank 3 purified water storage tank 4 water purification cartridge 7 light shielding member 60, 61 light source 100 water purifier display device

Claims (8)

A display method of a water purifier comprising a raw water storage tank, a purified water storage tank, and a water purification cartridge,
A method of displaying a water purifier, comprising supplying raw water containing luminescent particles to the raw water storage tank, and supplying purified water obtained by purifying the raw water using the water purification cartridge to the purified water storage tank. 2. The method of displaying a water purifier according to claim 1, wherein said raw water storage tank supplied with said raw water containing said luminescent particles uses said raw water and said raw water storage tank which are transparent from at least one direction under visible light. Selection of the raw water storage tank, selection of the type of the luminescent particles, and selection of the luminescent particles so that the raw water storage tank to which the raw water containing the luminescent particles is supplied is transparent from at least one direction under visible light. 3. The method of displaying a water purifier according to claim 2, comprising at least one step of selecting the concentration of . The water purifier display method according to any one of claims 1 to 3, wherein the luminescent particles are fluorescent particles that emit light when irradiated with ultraviolet rays. The water purifier display method according to claim 4, wherein a light source irradiates the water purifier with the ultraviolet rays. The method for displaying a water purifier according to any one of claims 1 to 5, wherein water purification cartridges having different luminescent particle removal rates are used. The method for displaying a water purifier according to any one of claims 1 to 6, wherein the specific gravity of the luminescent particles is 1-2. The water purifier display method according to any one of claims 1 to 7, wherein the light shielding member shields at least part of the periphery of the water purifier.

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