KR100616612B1 - Ion exchange resin, cartridge using it and humidifier - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifier, wherein an ion exchange resin is filled and has an air flow path, and the air flow path is provided with a cartridge of the ion exchange resin installed in a place where the ion exchange resin is not filled, and water stored in the tank. It is a heating device that induces a liquid such as a spray, diffusion or heating device, and sprays, diffuses or heats and evaporates to humidify a desired space, and provides a humidifying device in which a cartridge filled with ion exchange resin is installed in a tank. The liquid used in the steam humidifier can be passed through the ion exchange resin and supplied to the heating device without installing a pressurizing device, which prevents minerals, etc., from being attached to the heating device or the pipe as a scale.

Ion exchange resin

Description

Cartridge and humidifier with ion exchange resin {ION EXCHANGE RESIN, CARTRIDGE USING IT AND HUMIDIFIER}

The present invention relates to a so-called humidifier, in particular a domestic steam humidifier, which induces a liquid, such as water stored in a tank, into a spray, diffusion, or heating device, and humidifies a desired space by spraying, diffusing, or heating the device. More specifically, the present invention relates to a humidifier in which minerals contained in a liquid such as water, such as cations such as Ca, Mg, Na, K, Fe, Cu, and the like, are prevented from being fixed in the device.

The present invention also relates to a cartridge having an ion exchange resin for a humidifier used for absorbing the minerals and the like in the humidifier.

Humidifiers that increase the humidity by releasing water vapor in a dry room has been used a lot for the purpose of preventing colds and allergies due to high density of the house, the spread of heating by air conditioning. Representative of these humidifiers is a method of generating water vapor by heating the water stored in the tank to a heating device. Humidifiers in this way are commonly referred to as steam humidifiers.

FIG. 8 shows an example of a steam humidifier conventionally used. The apparatus main body 31 of the humidifier 30 is comprised from the plastic box body, The inside is divided into four rooms. A relatively large first chamber 34 is formed of a partition plate 32 arranged horizontally in the lower part inside the main body and a partition plate 33 arranged vertically upward from the right end thereof, and a storage tank (freely detachable) ( 39) is housed. Moreover, the bottom part of the 1st room 34 becomes the storage part 52 which temporarily stores water. The water supply pipe 45 is connected to the lower side of the storage part 52, and it is connected to the heater 44 mentioned later.

The lower side of the 1st room 34 is partitioned by the vertical partition plate 36, and the comparatively small 2nd room 35 used as a ventilation chamber is formed in the left side. Attached thereto is a blower 46 having a blower directly connected to the motor. An approximately L-shaped third chamber 37 is formed on the right side of the partition plate 36, and a cylindrical heater 44 for generating water vapor is disposed therein.

The blower outlet of the blower 46 described above is connected to the third chamber 37. Moreover, the rectangular cylindrical discharge nozzle 47 is provided in the upper part of the 3rd room 37 so that it may protrude to the 4th room side mentioned later. Thus, the wind from the blower 46 passes through the third chamber 37 and is discharged from the discharge nozzle 47 to the fourth chamber 38.

The upper part of the 3rd room 37 is partitioned by the horizontal partition plate 49, and this upper side becomes the 4th long room 38 lengthily, and the cylindrical discharge chamber 50 is arrange | positioned here. The bottom of this discharge chamber 50 is connected to the top of the heater 44, the top of which is open out of the device. In addition, two air injection ports 51 are formed in the peripheral surface of the discharge chamber 50. This air inlet 51 is for guiding the wind emitted from the outlet 48 of the discharge nozzle 47 into the discharge chamber 50.

When water is supplied to the storage tank 39, the upper cover 40 is removed to take out the storage tank 39 from the apparatus main body 31. When the water supply storage tank 39 is accommodated in the apparatus main body 31, the rib 41 abuts on the cap 41, the valve | bulb provided in the cap 41 opens, and water is discharged | emitted to the storage part 52. This water flows into the heater 44 through the pipe 45.

When the power is turned on and the start of operation is instructed, the water in the heater 44 is heated to become water vapor and rise to the discharge chamber 50. On the other hand, the blower 46 is driven to discharge wind from the discharge port 48 of the discharge nozzle 47. This wind is introduced into the discharge chamber 50 through the air inlet 51 while rotating around the discharge chamber 50. Inside the discharge chamber 50, the air swirls and rises to be discharged to the outside. This vortex can cause large droplets of water to adhere to the inner surface of the discharge chamber 50 to prevent the surroundings of the installation site from getting wet.

In addition, a float switch 43 is attached to the bottom of the first chamber 34. When the water in the reservoir 52 falls below a certain level, the float switch is operated to stop and prohibit the operation of the humidifier 30.

However, these steam humidifiers have the following problems. That is, tap water generally used for humidification mainly contains minerals such as magnesium and calcium in an ionic state. These mineral powders (mainly Ca ²⁺ , Mg ²⁺ ) are precipitated as scale when the tap water is heated by the heater 44 and are fixed to the heater 44 or the pipe 45. If the scale is left unattended, it is necessary to remove the heater 44 because it overheats or the pipe 45 is clogged and causes a failure. However, since the scale is firmly and firmly attached to the stone, it is not easy to remove the scale, which burdens the user. In addition, the scale is generally a carbonate, hydroxide or oxide of a cation such as Ca, Mg, Na, K, Fe, Cu or the like, and mainly consists of a carbonate or hydroxide of Ca, Mg, in particular calcium carbonate, magnesium carbonate and magnesium hydroxide.

As a method of preventing scale sticking, it is conceivable to adsorb and remove minerals contained in an ionic state by using an ion exchange resin, which is actually adopted for industrial use such as water for boilers. However, if the ion exchange resin is to be used in a steam humidifier as shown in Fig. 8, a pressurization device is required because water must pass between the dense ion exchange resins. Although there is such a problem that scale fixing can be recognized, mineral removal using ion exchange resin is not realized in a steam humidifier.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is a problem to enable the use of ion exchange resins in spray, diffusion or heated (steam) humidifiers, particularly steam humidifiers, thereby preventing scale adhesion. Make it.

Disclosure of the Invention

The present inventors have solved this problem to enable the use of ion exchange resins in steam humidifiers, and as a result of diligent research on how to prevent the adhesion of scales, cartridges filled with ion exchange resins in storage tanks By installing the air flow path in the place where the ion exchange resin in the cartridge is not filled, it was found that the removal of minerals using the ion exchange resin is possible even in a domestic steam humidifier.

That is, the present invention relates to a cartridge having a place where an ion exchange resin is filled and an air flow passage, and the air flow passage installed in a place where the ion exchange resin is not filled.

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In addition, the present invention is a humidifier that induces a liquid such as water stored in the tank by spraying, diffusing or heating device, and spraying, diffusing or heating to evaporate to humidify a desired space, and filling the ion exchange resin into the tank. A humidifier in which one cartridge is installed.

The first means for solving the above problems is a humidifying device for inducing liquid, such as water stored in the tank 1, into a spray, diffusion, or heating device, and humidifying a desired space by spraying, diffusing, or heating and evaporating in the device. It is a humidifier in which the cartridge 2 which filled the ion exchange resin in the said tank 1 is provided.

In this means, minerals such as magnesium and calcium are adsorbed to the ion exchange resin and removed when the liquid passes through the ion exchange resin filled in the cartridge 2 provided in the tank 1. Therefore, even if the liquid is heated and evaporated by the heating device, it is possible to prevent the minerals from being fixed as scale in the heating device or the pipe. In addition, by providing the cartridge 2 in the tank 1, no special space for attaching the cartridge outside the tank is required, and the apparatus can be miniaturized.

The 2nd means for solving the said subject is that the cartridge 2 is provided in the outlet of the liquid of the tank 1 as said 1st means.

By installing the cartridge 2 at the outlet of the liquid of the tank 1, it is possible to take a lot of water located at the cartridge inlet, so that almost all of the liquid in the tank can be used.

The 3rd means for solving the said subject is the humidifier or cartridge of the said 2nd means provided in the place where the flow path 1 of air in the cartridge 2 is not filled with ion exchange resin.

In order to reliably transfer the water in the tank 1 to the reservoir, the reduced amount of water in the tank 1 must be replaced with air. That is, when water in the tank 1 flows out through the cap 3, an amount of air corresponding to the volume flows into the tank 1 through the cap 2 in the storage, so that the pressure in the tank 1 is always maintained. It is possible to maintain the state close to atmospheric pressure.

Under these circumstances, if an ion exchange resin is placed in the lower part of the tank 1 or between the tank 1 and the cap 3, air cannot flow between the ion exchange resins, so that the water and air substitution as described above are easily exchanged. It doesn't work. Therefore, the inside of the tank 1 becomes negative pressure, and as a result, the water in a tank does not flow out into a storage part.

In this means, since the amount of air corresponding to the liquid volume discharged from the tank 1 can be introduced into the tank through the air flow passage 11 installed in the cartridge 2, the pressure in the tank can always be kept near atmospheric pressure. The liquid can then flow out of the tank smoothly. The air flow passage 11 is provided in a place where the ion exchange resin is not filled, so that the ion exchange resin does not disturb the air flow.

A fourth means for solving the above problem is an inlet (8, 15, 17) in which an air outlet leading into the tank 1 of the air flow passage 11 guides the liquid in the tank to the cartridge as the third means. It is the same height as or is formed on the upper side.

Water in the tank 1 tries to flow into the cartridge 1 from the throttling holes 13 and the inlets 8, 15, 17, but the throttling holes 13 are introduced into the inlets 8, 15, 17. Since it is the same height as or above, the head difference between the throttle hole 13 and the inlet port 8, 15, 17 overcomes the water resistance of the resin and flows into the inlet port. The structures are combined and do not flow into the throttle hole 13. Thus, the liquid in the tank passes between the ion exchange resins and is supplied to the heater.

The fifth means for solving the above problems is that the throttling hole 13 which guides the air in the air flow passage to the outside of the cartridge while controlling the passage of liquid as the third means or the fourth means has an air flow passage 11. At least one is formed on the top.

The upper part of the air flow path 11 is open in the tank 1, and there exists a possibility that the liquid in the tank 1 may flow into an air flow path. In this means, the throttling hole 13 is formed in the upper part of the air flow path 11. By setting the diameter of the throttling hole 13 to an appropriate size, the liquid in the tank cannot pass through the throttling hole under the influence of the surface tension or the like, and only the air can pass therethrough. That is, the liquid in the tank can be prevented from flowing into the air flow path. Therefore, in the normal state, air can be kept stored in the air flow path, and air is introduced into the tank through the throttle hole only when there is a new air supply at the bottom of the cartridge.

In addition, it is preferable that the throttling hole 13 be formed as many as possible, and to make individual hole diameter small by the quantity. This makes it possible to reduce the bubble size from the hole and to prevent air from passing through at once. In other words, the sound can be reduced when air enters the tank.

As a 6th means for solving the said subject, the sum total of the opening area of the throttle hole 13 will be 20 mm <^2> or less as said 5th means.

According to the experimental results of the inventor, it is possible to reliably allow only air to pass through the throttle hole without passing liquid.

The 7th means for solving the said subject made the diameter of all the throttling holes as 2 mm or less as said 5th or 6th means.

According to the inventor's experiment, it can be made so small that it does not mind the sound when air enters a tank.

The eighth means for solving the said problem is a cap of the tank 1 which has a recessed part in which the cartridge 2 has a recessed part as any of said 2nd-7th means, and stores the said liquid by this twisted part. (3) Or it becomes detachable to drain.

The cap of the tank is provided in the lower part of the tank, for example, as shown in Fig. 8 described in the prior art, and is to be separated when the liquid is put into the tank. That is, by detachably attaching the cartridge to this cap, the detachment of the cartridge itself becomes easy and the need for attaching the cartridge to the tank body eliminates the complexity of the tank structure. In addition, this makes it possible to install the cartridge at the bottom of the tank and to use almost the entire amount of liquid in the tank.

In the ninth means for solving the above problems, the cartridge (2) is any one of the third to eighth means, wherein the cartridge (2) consists of a hollow cylindrical body, liquid is introduced from the outer surface of the cylindrical body, The hollow portion serves as the air flow passage 11 while flowing through the ion exchange resin filled between the hollow portions and flowing out to the hollow portions.

In this means, the cylindrical outer surface of the cartridge is opened into the tank, where liquid is introduced into the cartridge. Then, it passes through the ion exchange resin enclosed between the cylindrical outer surface and the hollow portion and flows out into the hollow portion. Such a cartridge is simple in structure. In addition, the outflow path of the water passing through the ion exchange resin and the air flow path are the same, so that the structure is simplified.

The tenth means for solving the above problem is that the cartridge 2 as the ninth means has an upper part sealed by the upper member 4c except the air flow passage 11 and a lower part except the central opening. It consists of a cylindrical body sealed by (4d), and between the upper member and the lower member of the cylindrical body is provided with an outer holding member which permeates liquid and does not allow ion exchange resin to pass through the outer periphery, while permeating liquid and ion exchange. An inner retaining member which does not pass resin is installed successively from the lower member to the upper part in such a manner as to surround the center opening, an ion exchange resin is filled between the upper member, the lower member and both retaining members, and the air flow path is the inner retaining member. It is formed in the part surrounded by.

In this means, the liquid flows through the outer holding member into the cartridge, passes through the ion exchange resin, and then flows through the inner holding member to the portion (hollow portion) surrounded by the inner holding member and flows out of the cartridge. The air flow path is formed in a part (hollow part) surrounded by the inner holding member, and air flows through this part into the tank.

The eleventh means for solving the above problems is that any one of the third to eighth means flows in from the top of the cartridge, passes through the ion exchange resin in the cartridge, and flows out from the bottom of the cartridge.

In this means, the top of the cartridge is opened into the tank, and the liquid passed between the ion exchange resins in the cartridge flows out of the bottom of the cartridge. Such a cartridge is simple in structure and easy to manufacture.

A twelfth means for solving the above-mentioned problems consists of a cylindrical body in which the cartridge has an inner cylinder (5) and an outer cylinder (4) as the eleventh means, and a liquid passes through the upper and lower portions between the inner cylinder and the outer cylinder. The upper holding member 17 and the lower holding member 18 are provided respectively, and the ion exchange resin is filled between the inner cylinder, the outer cylinder, and both holding members, and the air flow path is inside. It is formed in the cylinder.

In this means, the liquid flows in through the upper holding member and flows out of the lower holding member through the inside of the ion exchange resin filled between the inner cylinder, the outer cylinder, and both holding members. An air flow path is formed in the inner cylinder and air is led through this portion into the tank.

A thirteenth means for solving the above problems is that any one of the third to eighth means flows in from the lower part of the cartridge and flows out from the lower part of the cartridge through the ion exchange resin in the cartridge.

In the ninth and tenth means, the liquid level in the tank is lowered, and the differential pressures at the cartridge inlet and outlet sides are reduced, so that the liquid corresponding to the amount consumed does not flow. The liquid must be freshly replenished before use. Further, in the eleventh means and the twelfth means, since the liquid does not flow into the cartridge at all when the liquid level is lowered to the cartridge upper surface position, the liquid must be newly replenished before using the entire amount of the liquid in the tank.

On the other hand, in the present means, a siphon effect or the like is used to introduce a liquid from the lower part of the cartridge to pass the ion exchange resin filled in the cartridge and then to flow out of the lower part of the cartridge. By doing so, almost all of the head pressure of the liquid remaining in the tank can be used by the pressure difference between the cartridge inlet and outlet, that is, almost all of the liquid in the tank can be used.

A fourteenth means for solving the above problems is, as the thirteenth means, the cartridge is formed of a cylindrical body having an inner cylinder and an outer cylinder, and the upper part of the cartridge is sealed by the upper member except for the air flow path and the inner cylinder and the outer cylinder. A partition member is formed between the inner cylinder and the outer cylinder to partition the space formed between the outer and inner spaces 2 through only the upper portion, and the inlet and outlet of the liquid are formed at the lower part of the cartridge. The holding member which permeate | transmits a liquid and does not let an ion exchange resin pass is provided, The ion exchange resin is filled between an inner cylinder, an outer cylinder, an upper member, and a holding member, and the air flow path is formed in an inner cylinder.

In this means, the liquid flows in through the holding member at the inlet formed in the lower part of the cartridge, ascends in the outer space and is moved from the upper communicating portion to the inner space, lowers the inner space and flows out of the outlet through the holding member. That is, when the liquid flows out from the outlet, the liquid is attracted from the inlet by the siphon effect. The ion exchange resin is filled between the inner cylinder, the outer cylinder, the upper member, and the holding member, that is, the inner space, the outer space, and these communicating portions, and the mineral powder is adsorbed between the liquids passing through them. An air flow path is formed in the inner cylinder and air flows through this portion into the tank.

A fifteenth means for solving the above problem is any one of the thirteenth means and the fourteenth means to enable air circulation from the place where the ion exchange resin is filled to the air flow passage side, and from the air flow passage side. It is provided with the mechanism which prevents air circulation to the place where ion exchange resin is filled.

If the cartridge is not used for a long time and the ion exchange resin inside dries, the ion exchange resin shrinks and the volume is reduced. In the twelfth means and the thirteenth means, when the use is started in such a state, there is a possibility that the air stays in the upper portion of the inside of the cartridge, so that the siphon effect cannot be exerted, the water supply becomes impossible, or the cartridge bursts. So, it is necessary to discharge this staying air to the outside.

In this means, since a mechanism is provided for allowing air to flow from the place where the ion exchange resin is filled to the air flow passage side, the remaining air flows into the air flow passage when the pressure rises and the air stays lost. . On the other hand, this mechanism has the effect of a so-called check valve that prevents air flow from the air flow passage side to the place where the ion exchange resin is filled, so that air in the air flow passage does not flow into the ion exchange resin filling portion. .

In a sixteenth means for solving the above-mentioned problems, one or more holes 21 having a diameter of 0.5 mm or less are formed in an upper portion of the place where the ion-exchange resin is filled as the thirteenth means or the fourteenth means.

This means also has an effect of preventing air from staying like the fifteenth means. That is, when air stays and the pressure rises, the air flows out into the tank through the hole and the air stays lost. According to the inventor's experiment, it was found that by setting the hole diameter to 0.5 mm or less, the siphon effect was not lost even if there were holes. That is, the diameter of the hole is used to select the size in which the ion-exchange resin filled therein does not leak in this range.

In a seventeenth means for solving the above-mentioned problems, as a thirteenth means or a fourteenth means, a check valve is provided at a top of a place where an ion exchange resin is filled, and a check valve capable of fluid outflow from the cartridge to the tank side is provided. On the side, a holding member is provided which does not pass the liquid and does not pass the ion exchange resin.

Like the fifteenth and sixteenth means, the present means also has an effect of preventing air from staying. In other words, when the air stays and the pressure rises, the air flows into the tank through the check valve and the air stays lost. Since the holding member is provided on the cartridge side of the check valve to prevent passage of the ion exchange resin, the ion exchange resin does not flow into the tank at this time. Under normal conditions, the siphon effect causes the pressure in the cartridge to be lower than the pressure in the tank so that the liquid in the cartridge does not flow back into the tank. The flow of liquid in the tank into the cartridge can be prevented by the effect of a check valve.

In this way, even in a domestic steam humidifier, it is possible to remove minerals by using an ion exchange resin or a cartridge filled with the ion exchange resin, and there is no problem of fixing these minerals to a heater or the like.

However, since the ion exchange resin filled in such a cartridge is filled in a cartridge of a limited size, it is desirable that the ion exchange capacity per unit volume (the amount of ions exchangeable by the ion exchange resin per unit volume) is as large as possible. . Strongly acidic cation exchange resins and weakly acidic cation exchange resins are known as ion exchange resins that adsorb cations such as Ca and Mg. Among these, the weakly acidic cation exchange resin has a large ion exchange capacity per unit volume, but can only exhibit ion exchange ability in an acidic atmosphere, which is a problem when neutral water (for example, pH = 5-7) is used as a humidifier. Generates. Strongly acidic cation exchange resins can exhibit ion exchange capacity in a neutral atmosphere, but have a small ion exchange capacity per unit volume.

If the user assumes that 400 L water is used in one season, the required strongly acidic cation exchange resin exceeds 200 ml and the cartridge becomes larger and the unit of ion exchange resin increases.

The present invention has been made in view of the above circumstances, and it is also an object of the present invention to provide an ion exchange resin for use in the humidifier with a large ion exchange resin capacity per unit volume.

An eighteenth means for solving the above problems is an ion exchange resin for removing cations from water used in a humidifier, and is an ion exchange resin for a humidifier in which a strong acid cation exchange resin and a weakly acidic cation exchange resin are combined and blended.

The inventor has intensively studied how to increase the ion exchange capacity per unit volume of the ion exchange resin. As a result, by mixing a strongly acidic cation exchange resin and a weakly acidic cation exchange resin, the weakly acidic cation exchange does not show an effect in the neutral environment. The resin exhibited an ion exchange capacity, and as a result, the ion exchange capacity per unit volume of the ion exchange resin was found to be higher than that of the strongly acidic cation exchange resin alone. The reason for this is that water is temporarily acidified at the time of strong acid cation exchange resin ion exchange, and thus weakly acidic cation exchange resin which does not exhibit the original ion exchange ability exhibits ion exchange ability.

Specific examples of the strongly acidic cation exchange resin used in the present invention include sulfonic acid or its sodium salt of styrene-divinylbenzene copolymer. The blending ratio of divinylbenzene in the copolymer is preferably 1 to 20 mol%. Specific examples of the weakly acidic cation exchange resin used in the present invention include acrylic acid (or methacrylic acid) -divinylbenzene copolymer or its sodium salt. The blending ratio of divinylbenzene in the copolymer is preferably 1 to 20 mol%. As the weakly acidic cation exchange resin, those having a carboxyl group (-COOH), a phosphone group (-PO ₃ H ₂ ) or a phenolic hydroxyl group (-OH) as an ion exchange group can be used, and preferably have a carboxyl group.

A nineteenth means for solving the above problems is an ion exchange resin for removing cations from water used in a humidifier, wherein the ratio of a strongly acidic cation exchange resin and a weakly acidic cation exchange resin to a strongly acidic cation exchange resin exceeds 40% by volume. And an ion exchange resin for a humidifier blended so as to be less than 70%.

A twentieth means for solving the above problems is an ion exchange resin for removing cations from water used in a humidifier, wherein the ratio of a strongly acidic cation exchange resin and a weakly acidic cation exchange resin is 43 to 67% by volume. It is the ion exchange resin for humidifiers mix | blended so that it may become a range.

The twenty-first means for solving the above problems is an ion exchange resin for removing cations from water used in a humidifier, wherein the ratio of strongly acidic cation exchange resin and weakly acidic cation exchange resin is 50 to 60% by volume ratio. It is the ion exchange resin for humidifiers mix | blended so that it may become a range.

When the compounding ratio (volume ratio) of the strongly acidic cation exchange resin is more than 40% and less than 70%, an exchange capacity higher than the exchange capacity when only the cation exchange resin of either the strongly acidic cation exchange resin or the weakly acidic cation exchange resin is used can be obtained. That is, in the nineteenth means, the blending ratio of the strongly acidic cation exchange resin is limited to this range.

Moreover, when the compounding ratio (volume ratio) of the strongly acidic cation exchange resin is 43 to 67%, an exchange capacity that is clearly higher than the exchange capacity when only the cation exchange resin of either the strongly acidic cation exchange resin or the weakly acidic cation exchange resin is used can be obtained. That is, in the 20th means, the compounding ratio of the strongly acidic cation exchange resin is limited to this range.

In addition, when the compounding ratio (volume ratio) of the strongly acidic cation exchange resin is 50 to 60%, the exchange capacity is optimized. That is, in the twenty-first means, the blending ratio of the strongly acidic cation exchange resin is limited to this range.

The twenty-second means for solving the above-mentioned problems is any one of the eighteenth to twenty-first means, wherein the strongly acidic cation exchange resin is a sulfonic acid of styrene-divinylbenzene copolymer of sodium type, and the weakly acidic cation exchange resin is sodium type. Acrylic acid-divinylbenzene copolymer.

Sulfonic acids of sodium styrene-divinylbenzene copolymers, in particular sulfonic acids of styrene-p-vinylbenzene copolymers, are readily available as strongly acidic cation exchange resins, sodium acrylic acid-divinylbenzene copolymers, especially sodium acrylic acid -p-divinylbenzene copolymers are readily available as weakly acidic cation exchange resins. By combining these compounds, the effect of reliably increasing the ion exchange capacity per unit volume can be obtained. The sodium-type ion exchange resin is intended to allow the cations to be removed mainly to Ca and Mg and to adsorb them efficiently.

The twenty-third means for solving the above-mentioned problems is sodium salt-type HGR-W2 (trademark) manufactured by Dow Chemical as a twenty-second means, and the weakly acidic cation exchange resin is manufactured by Dow Chemical. Sodium salt type MAC-3 (trademark).

These resins are commercially available and are easy to obtain, and by combining them, it is possible to reliably increase the ion exchange capacity per unit volume. The cation exchange resin used in the present invention has a geometrical structure such as gel or porous type, or has a shape such as amorphous shape, spherical shape and honeycomb shape, but is about 0.15 to 5 mm, preferably 0.25 To those having an average particle diameter of 0.84 mm can be used, but are not limited thereto.

On the other hand, in order to solve the said conventional problem, only any one of the ion exchange resin, a cartridge, and a humidifier which has the said characteristic may be employ | adopted, and any arbitrary combination may be employ | adopted.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the example which installed the cartridge which filled the ion exchange resin in the storage tank in embodiment of this invention.

2 is a view showing a first example of a cartridge in the embodiment of the present invention.

3 is a view showing a second example of the cartridge in the embodiment of the present invention.

4 is a view showing a third example of the cartridge in the embodiment of the present invention.

FIG. 5 is a diagram showing a first example in which the cartridge shown in FIG. 4 is improved.

6 is an enlarged view illustrating main parts of FIG. 5.

FIG. 7 is a view showing a second example in which the cartridge shown in FIG. 4 is improved.

8 is a view showing an example of a steam heating apparatus that has been conventionally used.

FIG. 9 is a graph showing the exchange capacity (l) per 1 ml of resin in the case where the ratio of the strongly acidic cation exchange resin is changed and blended in the strongly acidic cation exchange resin and the weakly acidic cation exchange resin.

Hereinafter, although an example of embodiment of this invention is described with reference to drawings, this invention is not limited to these. In the present invention, since most of the humidifying apparatus main body portions are the same as the conventional humidifying apparatus as shown in Fig. 8, the description is omitted, and only the storage tank portion, the cartridge, and the ion exchange resin, which are the features of the present invention, will be described.

Example 1

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the example which installed the cartridge which filled the ion exchange resin in the storage tank in embodiment of this invention. In Figure 1, 1 is a storage tank, 2 is a cartridge, 3 is a cap, 4,4 'is a case, 4 is an upper case, 4' is a lower case, 5 is an inner cylinder, and 5 'is an inner cylinder. 6 is compartment cylinder, 7 is space part, 7 'is outer space, 7' 'is inner space, 8 is inlet, 9 is outlet, 10 is retaining net, 11 is air flow path, 12 is cover, 13 is Represents an throttle hole.

In FIG. 1, the storage tank 1 and the cap 3 have the same structure as the storage tank 39 and the cap 41 of FIG. 8. The cartridge 2 is screwed onto the cap 3, which is indicated by the imaginary line in FIG. 1, and the cap 3 is screwed onto the storage tank 1. That is, in order to attach the cartridge 2, the cap 3 is removed from the storage tank 1, the cartridge is screwed into the twisted portion provided in the cap 3, and the cap 3 is again stored in the storage tank 1 Attach to.

The upper case 4 is a hollow cylinder, the upper part of which is sealed, between the outer wall and the inner cylinder 5 partitions the space 7 therebetween into an outer space 7 'and an inner space 7' '. The cylindrical cylindrical cylinder 6 is provided. In addition, the height of the partition cylinder 6 is made low so that a communication part may be formed in a space upper part. The inlet 8 and the outlet 9 are provided with a net 10 having a mesh enough to allow liquid to pass through the ion exchange resin, and a space surrounded by the upper case 4 and the net 10 (outside) Ion-exchange resin is enclosed in space 7 ', the internal space 7 ", and its communicating part. The lid 12 has a convex portion fitted into the inner cylinder 5 of the upper case 4, and the convex portion is formed with an throttling hole 13.

In the normal state, the outer space 7 'and the inner space 7' 'and its communication portion are filled with water. When the valve provided in the cap 3 is opened, the water in the internal space 7 '' flows out through the outlet 9 and through the water outlet 5 ', as indicated by B. Then, by the siphon effect, water in the storage tank 1 flows into the outer space 7 ′ as indicated by A through the inlet 8 at the inlet 8. In this way, the water from which the mineral powder was removed passing through the ion exchange resin is supplied to the heating apparatus.

Air entering the cap 3 in exchange with water enters into the storage tank 1 through an air flow passage 11 formed inside the inner cylinder 5 and past the throttle hole 13 as indicated by C. do. The throttle hole 13 is sized such that the water in the storage tank 1 does not flow into the air flow passage 11 by the action of surface tension or the like, so that the air flow passage 11 always has air. Is filled in, the excess air flows out of the throttle hole 13 only when fresh air flows in the cap 3 and the pressure rises.

According to the experiment of the inventors, in order to prevent the water in the storage tank 1 from flowing into the air flow path, the total area of the throttle hole 13 should be 20 mm ² or less, but as small a hole as possible can be obtained. It is preferable to form a plurality. This is because when the diameter of the throttle hole 13 is large, a large amount of air flows into the storage tank 1 at one time, and generates a loud sound at this time. According to the experiments of the inventors, the occurrence of anxious sound can not be recognized by setting the diameter of the throttle hole 13 to 2 mm or less.

By installing a cartridge of this structure, the water in the storage tank 1 can always be replaced with a corresponding volume of air, and the pressure in the storage tank 1 can always be maintained at almost atmospheric pressure. That is, water in almost all the storage tanks 1 is smoothly supplied to the heating apparatus.

Example 2

Fig. 2 is a view showing a first example of a cartridge used in the embodiment of the present invention, Fig. 2A is a plan view, Fig. 2B is a partial cross-sectional view, and Fig. 2C is a partial cross-sectional perspective view. In the drawings, the same components as those shown in the aforementioned drawings are denoted by the same reference numerals, and description thereof will be omitted. In Fig. 2, 4a is a tipped portion, 4b is a rib, 4c is an upper surface member, 4d is a lower surface member, 14 is an outer net, and 15 is an inner net.

The cartridge 2 is formed in a cylindrical shape, and a cap twist portion 4a is formed in the lower portion. Eight ribs 4b are provided between the upper surface member 4c and the lower surface member 4d in the circumferential portion of the case 4, and portions other than the ribs 4b are holes. And inside this circumference part, the outer net 14 which is a mesh which does not let ion exchange resin pass through is provided along the circumference. And the inner net 15 which is a mesh which does not let the concentric cylindrical ion exchange resin which has a diameter larger than the inner diameter of the cap screwing part 4a in the center part of the cartridge 2 is provided. And ion exchange resin is filled in the hollow cylindrical part enclosed by the outer net 14, the inner net 15, the upper surface member 4c, and the lower surface member 4d. The cylindrical portion surrounded by the inner net 15 forms the air flow passage 11.

When the valve provided in the cap is opened, water passing between the ion exchange resins flows through the inner net 15 like B and passes through the inner side of the cap trough portion 4a for supply to the cap. Thereby, the water in a tank flows through the outer net 15 through the hole of the circumference of the case 4 like A, and flows into the space filled with ion exchange resin. The air flowing from the cap flows out into the tank from the throttle hole 13 formed in the upper surface member 4c via the air flow passage 11 as indicated by C.

Thus, in this cartridge, water flows in the outer peripheral surface of the cartridge which forms a cylindrical shape, and flows out from the inner net formed in the center part cylindrically. The outflow path of the water and the air flow passage 11 are the same. The reason why the air flow passage 11 is filled with air in the steady state and no water in the tank flows is the same as the reason described in the description of FIG. 1.

This type of cartridge has a feature that the structure is simple, but on the other hand, the outer surface of the cylinder is an inlet for water, and the water flow in the tank is deteriorated.                 

Example 3

3 is a view showing a second example of the cartridge used in the embodiment of the present invention, FIG. 3A is a plan view, and FIG. 3B is a partial sectional view. In Fig. 3, 5a is a rib, 5b, 12a, 12b is a donut member, 12c is a rib, 16 is a net retaining member, 17 is an upper net, 18 is a lower net.

In Fig. 3, the case 4 is formed in a hollow cylindrical shape, and a lid 12 having a structure in which two donut members 12a and 12b are joined by four ribs 12c is provided. Places other than the ribs 12c of the lid 12 are holes. Directly under the lid 12, an upper net 17, which is a mesh supported by the net holding member 16 and which does not pass the ion exchange resin, is provided. Four ribs 5a are successively provided in the inner cylinder 5, and the donut member 5b is supported there. Therefore, places other than the four ribs 5a are holes. And just above this hole, the lower net 18 of the mesh which is supported by the four ribs 5a, the donut member 5b, and the inner cylinder 5, and does not let ion exchange resin pass through is provided. The ion exchange resin is filled in the space 7 surrounded by the outer circumferential portion of the case 4, the inner cylinder 5, the upper net 17, and the lower net 18.

When the valve installed in the cap is opened, water passing between the ion exchange resins passes through the lower net 18 and flows through the water outlet 5 'like B to be supplied to the cap. As a result, the water in the tank flows through the upper net 17 from the hole of the lid 12 as in A and flows into the space filled with the ion exchange resin. The air introduced from the cap flows into the tank from the throttle hole 13 formed in the top of the inner cylinder 5 through the air flow passage 11 formed in the inner cylinder 5 as indicated by C. The reason why the air flow passage 11 is filled with air in the steady state and no water in the tank flows in is the same as the reason described in the description of FIG. 1.

The cartridge of this type also has a special advantage that the structure is simple. However, since the upper surface of the cartridge 2 is used as an inlet for water, when the water level in the tank becomes lower than the upper surface of the cartridge 2, water cannot be supplied any more. Have

Example 4

4 is a view showing a third example of the cartridge used in the embodiment of the present invention, and is a partial cross-sectional view. The upper case 4 is a hollow cylinder, the upper part of which is sealed with a lid 12, and between the outer wall and the inner cylinder 5 a space portion 7 therebetween is formed between the outer space 7 'and the inner space ( A cylindrical partition cylinder 6 partitioned by 7 '' is provided. In addition, the height of the partition cylinder 6 is made low so that a communication part may be formed in the upper part of a space. The inlet 8 and the outlet 9 are provided with a net 10 having a mesh sufficient to allow liquid to pass through and not to pass the ion exchange resin, and a space surrounded by the upper case 4 and the net 10 (outer) Ion-exchange resin is enclosed in space 7 ', the internal space 7 ", and its communicating part. The lid 12 has a convex portion fitted into the inner cylinder 5 of the upper case 4, and the convex portion is formed with an throttling hole 13.                 

In the normal state, the outer space 7 and the inner space 7 'and its communication portion are filled with water. When the valve provided in the cap 3 is opened, the water in the internal space 7 'flows out through the outlet 9 and past the water outlet 5', as indicated by B. Then, by the siphon effect, water in the storage tank 1 flows into the internal space 7 as indicated by A through the inlet 8 at the inlet 8. In this way, the water from which the mineral powder was removed passing through the ion exchange resin is supplied to the heating apparatus.

Air entering the cap 3 alternately with water is introduced into the storage tank through an air flow passage 11 formed inside the inner cylinder 5 and past the throttle hole 13 as indicated by C. . The reason why the air flow passage 11 is filled with air in the steady state and no water in the tank flows in is the same as the reason described in the description of FIG. 1.

In this type of cartridge, the water inlet 8 is installed in the lower part of the cartridge by using the siphon effect. That is, the structure is more complicated, but almost all of the water in the storage tank can be used. Moreover, since the inlet port 8 and the outlet port 9 are formed in the same level, since the net 10 of one sheet can also be used for both, there exists a special advantage that cost reduction can be aimed at.

Example 5

FIG. 5 is a view showing a first example in which the cartridge shown in FIG. 4 is improved, and is a partial cross-sectional view. 5, 19 is a notch part, 20 is a lead part. In the cartridge shown in FIG. 5, a part or all of the inner cylinder 5 is not in contact with the lid 12, and a gap is formed between the lid 12, and a groove is formed in the inner portion of the inner cylinder 5. 4, except that the notched portion 19 is formed, and the lid-shaped lead portion 20 having flexibility is provided at the portion where the lid 12 abuts on the inner side of the inner cylinder 5. Since the operation is the same as that shown in FIG. 4, the description thereof will be omitted and only the parts different from those of FIG. 4 will be described.

Example 6

6 is an enlarged view of a portion described above. If the cartridge is not used for a long time and the ion exchange resin inside dries, the ion exchange resin shrinks and the volume is reduced. In the cartridge using the siphon effect as shown in FIG. 4 or FIG. 5, when the use is started in such a state, air stays on the upper part of the cartridge, the siphon effect cannot be exerted, water supply becomes impossible, or the cartridge may rupture. There is this. Therefore, it is necessary to discharge this staying air to the outside. The instrument shown in Figure 6 is installed to do this.

When air gathers in the upper part of the space part 7 and the pressure rises, the air reaches the notch part 19 through a gap formed between the inner cylinder 5 and the lid 12. And the lead part 20 is deformed inward by pushing the lead part 20 from the inside. This deformation creates a gap between the inner cylinder 5 and the lead portion 20, and the air in the space portion 7 flows into the air flow passage 11 through this gap and passes through the throttle hole 13. Discharge into the storage tank. The gap between the inner cylinder 5 and the lid 12 and the dimensions of the notch portion 19 are such that the ion exchange resin enclosed in the space portion 7 does not leak. Even when the air in the air flow passage 11 tries to leak toward the space portion 7, the pressure in the air flow passage 11 becomes higher than the pressure of the space portion 7 at this time, and the lead portion 20 is formed on the inner cylinder 5. Press to seal the passageway. In other words, air does not leak in this direction.

The notch part 19 may be formed in a part of the inner cylinder 5 in a groove shape, or may be notched over the entire circumference of the inner cylinder 5. Similarly, the gap between the inner cylinder 5 and the lid 12 may be formed over the entire circumference, or may be formed in part. In any case, the gap between the inner cylinder 5 and the lid 12 and the notches 19 need to be through one after another.

Example 7

FIG. 7 is a view showing a second example in which the cartridge shown in FIG. 4 is improved, and is a partial cross-sectional view. In FIG. 7, 21 is a small hole.

The cartridge shown in FIG. 7 is the same as that shown in FIG. 4 except that a small hole 21 of 0.5 mm or less is formed in the cover 12, and since its operation is the same as that shown in FIG. Descriptions will be omitted and only parts different from those of FIG. 4 will be described. The cartridge shown in FIG. 7 is designed for the same purpose as that shown in FIG.

When the air stays in the upper portion of the space 7 and the pressure rises, the air flows out through the small hole 21 into the storage tank. According to the experiments of the inventors, when the diameter of the small holes 21 is 0.5 mm or less, water or air in the storage tank does not flow into the space 7 filled with the ion exchange resin, and the ion exchange resin is small. It does not pass through the holes 21 and into the storage tank.

In addition, although not shown in figure, the diameter of the small hole 21 may be enlarged and a check valve may be connected to the small hole 21 to allow only air flow from the cartridge to the tank side. In this case, it is necessary to put a holding member such as a net through the air without passing the ion exchange resin in the cartridge side of the check valve so that the ion exchange resin in the cartridge does not flow out.

In the case of providing the check valve, a hole may be formed in the inner cylinder 5, and the check valve may be connected thereto to allow only air flow from the space portion 7 to the air flow passage 11 side. Also in this case, it is necessary to put a holding member such as a net through the air without passing the ion exchange resin in the space 7 side of the check valve so that the ion exchange resin in the cartridge does not flow out.

Example 8

Next, embodiment about ion exchange resin is described.

The inventors investigated the exchange capacity (l) per 1 ml of resin when compounding by varying the ratio of the strongly acidic cation exchange resin in the strongly acidic cation exchange resin and the weakly acidic cation exchange resin. It shows the amount of tap water in which 1 ml of resin absorbs cations such as Ca and Mg. In the experiment, Dow Chemical's Dowex HGR-W2 (trademark) manufactured by Dow Chemical as a strong acid cation exchange resin and Sodium Dow MAC-3 (trademark) manufactured by Dow Chemical as a weakly acidic cation exchange resin were used. Each was used after washing with ultrapure water.

HGR-W2 is the sodium salt of sulfonic acid of the copolymer of styrene and p-divinylbenzene, and the compounding ratio of divinylbenzene is about 10 mol%. MAC-3 is the sodium salt of the copolymer of acrylic acid and p-divinylbenzene, and the compounding ratio of divinylbenzene is about 8 mol%.

As a result, it was found that there is a relationship as shown in the following Table 1 between the blending% (volume%) of the strongly acidic cation exchange resin and the exchange capacity (L) per ml of the resin. The result is combined with FIG. In addition, the exchange capacity was measured by the following method.

First, the hardness of the tap water was measured and distilled water or the like was added to adjust the hardness to 70 mg / L. Moreover, the hardness of tap water is usually 10 to 300 or 30 to 100 in many cases. Hardness is referred to in terms of the content of cations such as calcium and magnesium in the water as CaCO ₃ and displays the amount of 1ℓ by ㎎ unit. The hardness adjusted water was passed through a cation exchange resin, and the amount of water (l) per unit resin amount (ml) and the water after the pass were randomly sampled to measure the hardness. The amount of water per unit resin amount and the hardness of the sampled water were measured. Was floated. The amount of passage of water at the time when the measured hardness exceeded a certain value was made into the exchange capacity (L) per 1 ml of resin.

combination% 0 10 20 30 40 43 46 50 Exchange capacity (ℓ) 1.3 1.3 1.3 1.35 1.4 1.45 1.5 1.55 combination% 55 60 64 67 70 80 90 100 Exchange capacity (ℓ) 1.57 1.55 1.5 1.45 1.4 1.35 1.35 1.4

As a result, if the blending ratio (volume ratio) of the strongly acidic cation exchange resin is greater than 40% and less than 70%, the exchange capacity is higher than the exchange capacity when only one cation exchange resin is used. It can be seen that.

In addition, when the compounding ratio (volume ratio) of the strongly acidic cation exchange resin is 43 to 67%, it is understood that the exchange capacity can be clearly higher than the exchange capacity when only the cation exchange resin of either the strongly acidic cation exchange resin or the weakly acidic cation exchange resin is used. Can be.

In addition, it can be seen that the exchange capacity is optimized when the compounding ratio (volume ratio) of the strongly acidic cation exchange resin is 50 to 60%.

That is, when the compounding ratio of HGR-W2 and MAC-3 was in the range of 5: 5 to 6: 4 by volume ratio, the ion exchange capacity per unit volume corresponding to 1.12 times or more that of HGR-W2 alone was obtained. . As a result, about 90% of capacity in the case of the HGR-W2 alone was required to exhibit the same exchange capacity, and it was possible to reduce the size of the cartridge and to lower the cost of the ion exchange resin per unit use quantity. In addition, washing with ultrapure water is for reducing discoloration during use.

In the above description, the humidifier has been described as being heated. Although the effect of the present invention is most remarkable for a heated humidifier, the scale of calcium or the like is attached to the humidifier of another method (for example, ultrasonic type), or calcium is attached to the room by releasing droplets containing calcium. There is a problem that is contaminated. The present invention is also effective in solving such a problem. Therefore, the range to which the present invention is applied is not limited to a heating (steam type) humidifier, but can also be applied to a spray or diffusion humidifier using ultrasonic waves or the like.

As described above, in the cartridge of the present invention, since the air passage in the cartridge is provided at a place where the ion exchange resin is not filled, the liquid in the tank can easily be replaced with air through the cartridge, so that the pressure in the tank is always Can be maintained at almost atmospheric pressure. That is, the liquid in the tank passes through the portion filled with the ion exchange resin and is smoothly supplied to the heating apparatus by the head pressure. This configuration allows the liquid used in the steam humidifier to pass through the ion exchange resin without supplying a special pressurizing device, and then can be supplied to the heating device. In other words, it is possible to prevent the minerals and the like from sticking to the heating device or the pipe as a scale.

In addition, in the ion exchange resin of the present invention, a strong acid cation exchange resin and a weak acid cation exchange resin are blended, and when the cations such as Ca and Mg are removed from the neutral water, the exchange capacity per unit volume can be increased. That is, the size of the cartridge can be reduced and the cost of the ion exchange resin per unit use quantity can be realized.

Claims (42)

Ion exchange resin charging part filled with ion exchange resin, An air distributor for distributing air, and A cartridge having a liquid inlet for directing liquid from outside the cartridge into the cartridge, The air flow passage is installed in a place where the ion exchange resin is not filled and has an air outlet connected to the outside of the cartridge, The air outlet is formed at the same height or upper side as the liquid inlet, and at least one throttling hole is formed at the air outlet to restrict liquid flow and to guide air in the air flow path to the outside of the cartridge. cartridge. delete delete The cartridge according to claim 1, wherein the total of the opening areas of the throttling holes is 20 mm ² or less. A cartridge according to claim 1, wherein said throttle hole diameter is 2 mm or less. The cartridge according to claim 1, wherein the cartridge has a tucked portion, which can be attached to and detached from a drain port of a tank for storing the liquid. 2. A hollow cylindrical body having a hollow portion and an outer surface, wherein the ion exchange resin is filled between the outer surface and the hollow portion, and liquid is introduced from the outer surface of the cylindrical body and the ions A cartridge having a structure that passes through an exchange resin and flows out to a hollow portion, and the hollow portion is an air flow passage. 8. The apparatus of claim 7, further comprising an upper member, a central opening, a lower member, an outer retaining member and an inner retaining member. The cartridge consists of a cylindrical body whose upper part is closed by the upper member except the air flow path and the lower part is closed by the lower member except the central opening, and the liquid penetrates the outer circumference between the upper member and the lower member of the cylindrical body. An external holding member is provided which does not pass through the ion exchange resin, and an inner holding member which penetrates the liquid and does not pass through the ion exchange resin extends upward from the lower member in the form of winding the central opening. Is filled between the upper member, the lower member, and both holding members, and the air flow path is formed in a cylindrical shape by the inner holding member. The cartridge of claim 1, wherein liquid flows out of the top surface of the cartridge and passes between the ion exchange resins in the cartridge and out of the bottom surface of the cartridge. 10. The cartridge according to claim 9, wherein the cartridge is formed of a cylindrical body having an inner cylinder and an outer cylinder, and an upper retaining member and a lower retaining member are respectively provided to allow the liquid to pass through the upper and lower portions of the outer cylinder and not to pass the ion exchange resin. And the ion exchange resin is filled between the inner cylinder, the outer cylinder, and both holding members, and the air flow path is formed in the inner cylinder. A cartridge filled with ion exchange resin and having an air flow path, wherein the air flow path is installed in a place where the ion exchange resin is not filled, and a liquid flows from the bottom of the cartridge and passes between the ion exchange resins in the cartridge. Cartridges leaking from the bottom. 12. The cartridge according to claim 11, having an upper member, a partition member, a liquid inlet, a liquid outlet and a retaining member, and the cartridge is formed of a cylindrical body having an inner cylinder and an outer cylinder, and the upper part of the cartridge except the air flow path. It is sealed by the member, and a partition member is provided which partitions the space formed in the outer cylinder into two spaces, the outer space and the inner space, which are successively connected only at the upper portion, and the inlet and outlet of the liquid are formed at the lower part of the cartridge. The outlet port is provided with a holding member that permeates liquid and does not pass the ion exchange resin, and the ion exchange resin is filled between the inner cylinder, the outer cylinder, the upper member, and the holding member, and the air flow path is formed in the inner cylinder. cartridge. 12. The cartridge according to claim 11, wherein the cartridge has a mechanism for enabling air flow from the place where the ion exchange resin is filled to the air flow path side and preventing air flow from the air flow path side to the place where the ion exchange resin is filled. . The cartridge according to claim 11, wherein at least one small hole having a diameter of 0.5 mm or less is formed in an upper portion of the place where the ion exchange resin is filled. 12. The holding member according to claim 11, wherein a check valve is provided at an upper portion of the place where the ion exchange resin is filled so that air can be discharged from the cartridge to the tank side, and the cartridge side of the check valve allows air to pass through and does not pass the ion exchange resin. Cartridge is installed. 12. The cartridge according to claim 11, wherein the ion exchange resin is an ion exchange resin that removes cations from water used in a humidifier and is a combination of a strong acid cation exchange resin and a weak acid cation exchange resin. 17. The cartridge of claim 16, wherein the strongly acidic cation exchange resin and the weakly acidic cation exchange resin are blended so that the ratio of the strongly acidic cation exchange resin is in the range of more than 40% and less than 70% by volume. 17. The cartridge of claim 16, wherein the strongly acidic cation exchange resin and the weakly acidic cation exchange resin are blended so that the ratio of the strongly acidic cation exchange resin is in the range of 43% to 67% by volume. 17. The cartridge of claim 16, wherein the strongly acidic cation exchange resin and the weakly acidic cation exchange resin are blended so that the ratio of the strongly acidic cation exchange resin is in the range of 50% to 60% by volume. 17. The cartridge of claim 16, wherein the strongly acidic cation exchange resin is a sulfonic acid of sodium styrene-divinylbenzene copolymer and the weakly acidic cation exchange resin is a sodium acrylic acid-divinylbenzene copolymer. The cartridge according to claim 20, wherein the strongly acidic cation exchange resin is HGR-W2 (trademark) manufactured by Dow Chemical, and the weak acid cation exchange resin is MAC-3 (trademark) manufactured by Dow Chemical. delete delete delete delete delete delete delete delete 22. A humidifier for injecting a liquid such as water stored in a tank into a spray, diffusion, or heating device, and humidifying a desired space by spraying, diffusing, or heating and evaporating therein, wherein any one of claims 1 to 21 in the tank is used. A humidifier, wherein the cartridge of claim 1 is installed. 31. The humidifier according to claim 30, wherein the cart is provided at an outlet of the liquid of the tank. delete delete delete delete delete delete delete delete delete delete 31. The humidifier according to claim 30, wherein said spraying, diffusing, or heating device is configured by steam to heat and evaporate the liquid.

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