JPH11230585A - humidifier - Google Patents

Abstract

(57) [Summary] [Object] To provide a humidifier that can reliably prevent hardly soluble sediments contained in tap water from settling and fixing inside a container and can always be used in a normal state. [Constitution] Injection pipe 3 for injecting tap water into container body 1
A main valve 11 of the injection pipe 3, a heater 5 for heating tap water stored in the container body 1 to generate steam,
A positive electrode 6 having a float 4 for measuring the level of tap water stored in the container body 1, and provided so that the tip side contacts the water stored in the container body 1;
Humidifier provided with a negative electrode 6b provided so as to be in contact with the humidifier

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to, for example, houses, offices,
The present invention relates to a humidifier installed in factories, hospitals, museums, and the like and used for humidity control.

[0002]

2. Description of the Related Art Generally, humidifiers are functionally sprayed in the air by forcibly atomizing water as in an ultrasonic type or a spray type using a centrifugal spray type nozzle, or heated in an evaporative type. There was a method of blowing out as steam.

[0003] In all of these, tap water is generally used, and tap water contains impurities such as calcium and sodium. Calcium and sodium are dissolved in tap water as chemicals such as chlorine and lime are artificially added or used as natural minerals for the purpose of sterilization in the water treatment process. Have been. Some of these substances cause deposits to accumulate at the bottom of the kettle pot and clog the holes in the steam iron.

[0004] Taking calcium as an example, the sediment is calcium carbonate, which is a hardly soluble carbonate, which is dissolved in tap water in the form of Ca (HCO3) 2 by carbon dioxide in the atmosphere. Boiling is caused by the following chemical change. Ca (HCO3) 2 → 2CaCO3 + H2O → CO2 In the case of an evaporative humidifier, tap water in the vessel is heated and boiled to produce steam. In this process, calcium carbonate is generated,
As evaporation proceeds, the concentration of calcium carbonate in the vessel becomes higher and precipitates and adheres to the inner surface of the vessel.

[0005] Calcium carbonate precipitated and fixed on the inner surface of the vessel reduces the heat transfer efficiency of the vessel, reduces the capacity of the vessel, and adheres to a float provided to maintain the water level, thereby forming a water level. Has the adverse effect of inhibiting control functions.

Accordingly, as disclosed in Japanese Utility Model Laid-Open Publication No. Sho 56-44802, a humidifier in which the inside of the vessel is highly concentrated by evaporating water contains carbon particles and a DC electrode in a water receiving tank communicating with the evaporating dish. And a water treatment device for preventing sediment from sedimentation and fixation is provided.

[0007]

However, in the above-mentioned conventional humidifier, water is supplied from the water receiving tank to the extent that the water in the evaporating dish is reduced due to evaporation. Is very slow and slow, so it cannot be expected to have a sufficient effect to prevent sedimentation and fixation.Also, it is possible to prevent the accumulation of scale by flowing electric energy into the liquid to ionize the liquid. Although disclosed in U.S. Pat. No. 3,026,259 and the like, in this case, there is a problem that the water ionized in the water receiving tank returns to a normal state while remaining in the evaporating dish, and the effect is not sufficiently exhibited.

[0008] Further, there is a problem that the frequency of the carbon particles increases in recent years when the adsorbing effect of the carbon particles is eventually reduced, the carbon particles need to be replaced, and the contamination of the water supply source is advanced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is intended to always prevent a hardly soluble sediment contained in tap water from settling and fixing inside a container, and always use the container in a normal state. The purpose is to provide a humidifier that can be used.

[0010]

According to one aspect of the present invention, there is provided an injection pipe for injecting tap water into a container body, a main valve of the injection pipe, and a storage valve in the container body. A humidifier having a heater for heating the supplied tap water to generate steam, and a float for measuring the level of the tap water stored in the container main body, wherein the water stored in the container main body is provided. A positive electrode provided so as to contact the tip side thereof, and a negative electrode provided so as to contact the container body.

According to a second aspect of the present invention, there is provided an electrode for accommodating the positive electrode and the negative electrode in a storage box conductively fixed to the container body, and for inserting the positive electrode into the water in the container body through the storage box. On the other hand, a cathode is formed by bringing the negative electrode into conductive contact with the storage box, and a cathode tube that covers the outer circumference of the electrode rod with a certain dimension is fixed to the housing electrode. Features.

According to a third aspect of the present invention, the injection tube, the heater, and the base end of the float are fixed to the storage box so that the distal end is submerged in water in the container body, and the outside of the injection tube, the heater, and the float are fixed. Is a negative electrode.

According to a fourth aspect of the present invention, when the liquid level in the container main body decreases to a predetermined water level, the main valve of the injection pipe is opened by the liquid level sensor provided in the float and the container is inserted into the container main body. It is characterized in that a water flow for replenishing water and for cleaning soft impurities adhered to the wall surface of the container body is generated.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 shows an embodiment in which the present invention is applied to a humidifier, and reference numeral 1 in the figure denotes a container body of the humidifier.

The container body 1 is formed in a dish shape, and stores tap water 2 therein. Further, a pipe 3 for injecting tap water 2 into the container body 1, a float 4 for adjusting the level of the tap water 2 stored in the container body 1, a tap water 2
And a positive electrode 6 having a tip inserted into tap water 2.

A storage box 10 for electrical components formed of a conductive material is integrally fixed to an upper portion of the container body 1. Inside the storage box 10, an electromagnetic valve 11 and an electromagnetic valve An apparatus control unit 13 for controlling the position of the float 11 in accordance with the position of the float 4 or controlling the temperature of the heater 5 and an ion generating power supply unit 14 for generating ions are housed in the container body 1.

Further, a positive electrode 6 and a negative electrode 15 are stored inside the storage box 10, and the positive electrode 6 passes through a through hole formed in a bottom plate of the storage box 10, and the tip side is a container body. 1 comprises an electrode rod 6 submerged in water. The base end of the electrode rod 6 is fixed to the bottom plate of the storage box 10 with the insulating material 6a interposed therebetween. Therefore, the electrode rod 6 is
10 and the container body 1 are insulated and positively charged. In addition, since the negative electrode 15 is fixed inside the storage box 10, the storage box 10 and the container body 1 fixed to the storage box 10 constitute a negatively charged housing electrode.

Further, the base plate of the heater 5, the base end of the float 4, and the middle of the pipe 3 are fixed to the bottom plate of the storage box 10 so as to be conductive.
The surface of the pipe 3 is negatively charged. Further, a metal cathode tube 6b is provided on the outer periphery of the electrode rod 6, and the upper end of the cathode tube 6b is also fixed to the storage box 10 to be negatively charged. Therefore, all portions of the positive electrode electrode 6 that come into contact with tap water in the container body 1 are negatively charged housing poles.

The water level in the container body 1 is adjusted by detecting the water level in the container body 1 according to the position of the float 4 and opening and closing the solenoid valve 11 by the device control unit 13 according to the water level. When the water in the container body 1 evaporates and the water level drops, the electromagnetic valve 11 is opened and water is injected so that the inside of the container body 1 has a predetermined water level. At this time, it is preferable that the amount of water to be injected is a water flow such that water-soluble impurities attached to the inside of the container are separated from the wall surface inside the container.

Inside the power supply 14 for generating ions, an AC power supply in the power supply box 13 is converted into a DC power supply, and a predetermined potential difference is generated between the positive electrode 6 and the negative electrode 15. A delicate current / voltage adjusting means (not shown) is accommodated. Reference numeral 7 denotes a drain valve connected to the bottom of the dish-shaped container body 1.

Next, the operation of the humidifier according to the present embodiment will be described in detail with reference to FIGS. In addition, this example demonstrates the case where a deposit is calcium carbonate.

In FIG. 2 (a), before energization, Ca2 + and HCO3 which form a hardly soluble deposit in the container body 1 are formed.
The negative ion exists in an aqueous state.

Next, when energization is started, as shown in FIG. 2 (b), Ca 2+ ions and HCO 3− ions are separated, and the Ca 2+ ions are transferred to the side of the container main body 1 that is electrically connected to the housing pole 15 as a cathode. As a result, the HCO 3− ions are attracted to the electrode rod 6 serving as the anode.

Further, when the tap water starts to boil with the lapse of time after the energization is started, as shown in FIG.
-The ions are decomposed into CO2 and OH- ions.

In the steady state, the container body 1
CO2 is discharged together with the generation of steam, and Ca2 + ions and OH- ions are present in the tap water 2 in an aqueous state as shown in FIG.

Further, the drain valve 7 is periodically opened, and the container body 1 is opened.
If the tap water 2 is discharged, the Ca 2+ ions having the increased concentration can be easily discharged together with the tap water 2.

As described above, in the humidifier of the present embodiment,
In the process in which the water 2 in the container body 1 boils to generate steam,
Since the hardly soluble substance dissolved in the water is separated into ions and a part of the decomposed part is discharged to the outside of the container body 1, the tap water 2 stored in the container body 1 during the steady operation is removed. Since Ca 2+ ions and OH− ions are present only in a water-soluble state, and OH− ions do not produce a compound that forms a hardly soluble deposit, the OH− ions are hardly soluble on the inner surface of the container body 1 and the outer surface of the heater 5. Sediment does not settle and settle. This ion separation reaction is performed by the positive electrode 6 and the negative electrode 6 surrounding the positive electrode 6.
It occurs most severely with a.

Therefore, the inner surface of the container body 1 and the heater 5
Even if Ca 2+ ions adhere to the container, a predetermined water flow is generated in the container main body 1 when the water in the container main body 1 evaporates and the water level in the container main body 1 decreases because the water is not hardly soluble. By injecting water, Ca2 + ions can be washed away from the adhered surface. If the drain valve 7 is opened, C
a2 + ions can easily flow out of the container body 1, and Ca2 +
2+ ion concentration can be reduced.

The humidifier of the present embodiment described above can be variously changed in design, and can be used for evaporators other than the humidifier.

[0030]

As described above, the humidifier according to the present invention comprises an injection pipe, its main valve, a heater for heating tap water to generate steam, and a float for measuring the level of tap water. Having a positive electrode provided so that the tip side contacts the water stored in the container body, and a negative electrode provided so as to come into contact with the container body, so that the tap water stored inside the container body is provided. Water can be ionized.

According to the present invention, the positive electrode is constituted by an electrode rod which penetrates the storage box and is inserted into water in the container body, while the negative electrode is brought into conductive contact with the storage box to form a housing pole.
The cathode electrode, which covers the outer circumference of the electrode bar with a certain distance, is conductively fixed to this housing pole, so that the ionic reaction in the tap water between the positive electrode and the cathode tube can be violently generated, and the ionization of the tap water is performed. Can be promoted.

According to the third aspect of the present invention, the injection tube, the heater, and the base end of the float are fixed to the storage box at the distal end side in the water in the container body, and the outside of the injection tube, the heater, and the float are used as the negative electrode. Therefore, the surface of the injection pipe, heater, and float becomes the cathode, and generates the ion reaction of tap water,
It is possible to prevent the hardly soluble substance from adhering to the surfaces of the injection pipe, the heater, and the float, and to prevent malfunction of these instruments.

According to a fourth aspect of the present invention, when the liquid level in the container main body decreases to a predetermined water level, the main valve of the injection pipe is opened to replenish water into the container main body, and the soft water adhered to the container main body wall surface. By creating a water stream that cleans the impurities of
Impurities adhering to the wall surface of the container body can be cleaned.

[0034]

[Brief description of the drawings]

FIG. 1 is an overall cross-sectional configuration diagram of a humidifier showing one embodiment of a humidifier according to the present invention.

2 (a) is an explanatory view showing the state of ions in water before energization in the container body of the humidifier shown in FIG. 1, (b) is an explanatory view showing the state of ions in water before energization and before boiling, (c) is an explanatory view showing the state of ions in water at the time of boiling after energization, (d)
FIG. 3 is an explanatory diagram showing a state of ions in water in a steady state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body (housing electrode) 2 Tap water 6 Electrode rod (positive electrode) 6b Cathode tube 7 Drain valve 10 Storage box (housing electrode) 14 Power supply for ion generation 15 Negative electrode

Claims (4)

[Claims] 1. An injection pipe for injecting tap water into a container body, a main valve of the injection pipe, a heater for heating tap water stored in the container body to generate steam, and a container body. A humidifier having a float for measuring the level of tap water stored in the container, wherein the positive electrode provided so that the tip side contacts the water stored in the container body; and A humidifier comprising a negative electrode provided to perform 2. An electrode rod which houses the positive electrode and the negative electrode in a storage box which is conductively fixed to the container body, and which inserts the positive electrode through the storage box and into water in the container body. On the other hand, a housing electrode is formed by bringing the negative electrode into conductive contact with the storage box, and a cathode tube that covers the outer circumference of the electrode bar with a certain dimension is conductively fixed to the housing electrode. The humidifier according to claim 1. 3. A base end of the injection pipe, the heater, and the float, the distal end of which is submerged in water in the container body, is fixed to the storage box, and the outside of the injection pipe, the heater, and the float are connected to a negative electrode. The humidifier according to claim 1, wherein 4. When the liquid level in the container main body decreases to a predetermined water level, the main valve of the injection pipe is opened by a liquid level sensor provided on the float to replenish water into the container main body. The humidifier according to any one of claims 1, 2 and 3, wherein a water flow for cleaning soft impurities attached to the container body wall surface is generated.