JPH11257696A - Humidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate cleaning by adding a water soluble polymer into water to be heated and washing with water without hardening scale regardless of the quality of water. SOLUTION: When a water tank 1 filled with evaporation water 2 is set on a water receiving section 3, the evaporation water 2 flows to the water receiving section 3 thence flows through a water passage 5 to an evaporation pan. When the water tank 1 is loaded, a constant quantity lever 12 is moved downward by the weight of the water tank 1 to press the sealing part 10 of a container 9 filled with polyethylene glycol 11. A fixed quantity of polyethylene glycol, i.e., about 1/100,000 wt.% of water, is dripped onto the drain pan 3 through a duct 13. Polyethylene glycol is dissolved into water and dispersed uniformly into the evaporation water 2 in the water tank 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a humidifier for heating and evaporating tap water or the like to increase indoor humidity.

[0002]

2. Description of the Related Art Humidifiers for adjusting the humidity in the air by supplying water from a supply tank to an evaporating dish and evaporating the water have been developed. However, non-evaporable substances are contained in the heated water. Contained, and such evaporation residue (hereinafter referred to as scale) was gradually deposited on the evaporation dish.

Here, a scale generating mechanism of a heater-heated humidifier will be described. Unless distilled water or special treatment is used, water for humidifiers using commonly used tap water contains various ions such as calcium, magnesium, silicic acid, and sulfuric acid, and these salts are operated by operating the humidifier. Accumulate in the evaporation dish as evaporation residues. In particular, calcium carbonate, unlike ordinary salts, has a lower solubility in water at higher temperatures, so it selectively precipitates on the heater of the evaporating dish.
accumulate. Furthermore, calcium carbonate once formed as a solid has a low solubility (about 15 mg / l),
It is hard and cannot be easily cleaned by washing with water. If the operation of the humidifier is continued in this state, deposits such as calcium carbonate will further increase, and heat conduction from the evaporating dish to water will worsen. As a result, the safety circuit may operate and the operation may be disabled.

[0004]

Hitherto, scale removal has been carried out by washing or scrubbing the evaporating dish with water. However, there is a problem that the generated scale tends to be hard and cannot be easily removed.

The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a humidifier which can be easily cleaned by washing with water without curing the scale without affecting the water quality. With the goal.

[0006]

The humidifier according to the present invention is obtained by mixing a water-soluble polymer with heated water.

[0007] Also, one hundred thousandth of the weight of heated water is used.
The above polyethylene glycol is mixed with water.

In addition, a water tank for storing the water to be heated, a water receiving portion for receiving the water from the water tank, an evaporating portion for heating the water, and an evaporating portion for transferring the water from the water receiving portion to the evaporating portion. In a humidifier provided with a water channel for guiding, a container containing a water-soluble polymer is provided, and when the water tank is placed, the water-soluble polymer is added to the water from the container by the weight of the water tank. Things.

Further, a water tank for storing the water to be heated, a water receiving portion for receiving the water from the water tank, an evaporating portion for heating the water, and the evaporating portion for transferring the water from the water receiving portion to the evaporating portion. In a humidifier provided with a water channel for guiding, a container containing a water-soluble polymer and a conduit for guiding the water-soluble polymer from the container to the water channel are provided, and the water-soluble polymer is added to the water by natural diffusion. It is added.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a humidifier according to a first embodiment of the present invention, FIG. 2 is an enlarged view of a main part of the humidifier with a water tank removed, and FIG. 3 is a humidifier with a water tank attached. FIG. 4 is an enlarged sectional view showing the state of the wall surface of the evaporating dish. In the figure, reference numeral 1 denotes a water tank, which stores tap water or the like and stores evaporation water 2 as a humidifying source. Reference numeral 3 denotes a water receiving portion that receives the evaporating water 2 from the water tank 1, 4 denotes an evaporating dish that heats and evaporates the evaporating water 2, 5 denotes a water channel for guiding the evaporating water 2 from the water receiving portion 3 to the evaporating dish 4, 6. Is a heater for heating the evaporating dish 4. Reference numeral 7 denotes a main body case, and reference numeral 8 denotes an entire humidifier. 9
Are containers for polyethylene glycol described below, 10
Is a seal portion formed on the upper portion of the container 9 and is made of a deformable material such as rubber or plastic. 11
Is a polyethylene glycol, which is a kind of water-soluble polymer substance that does not physically or chemically change at 100 degrees. Reference numeral 12 denotes a fixed amount addition lever which is disposed above the container 9 and is provided on the main body case 7 so as to be movable up and down, and is configured to operate when the water tank 1 is mounted. Reference numeral 13 denotes a polyethylene glycol conduit for guiding the polyethylene glycol 11 from the lower part of the container 9 to the water receiving part 3.

Next, the operation will be described. First, when the evaporating water 2 is put into the water tank 1 and installed on the water receiving portion 3, the evaporating water 2 in the water tank 1 flows to the water receiving portion 3 and reaches the evaporating dish 4 via the water channel 5. Here, the addition mechanism of polyerylene glycol will be described with reference to FIGS. 3 with the water tank 1 shown in FIG. 2 removed.
When the state shifts to the state in which the water tank 1 is mounted as shown in the figure, the fixed amount addition lever 12 moves downward by the weight of the water tank 1,
Seal part 10 of container 9 containing polyethylene glycol
Press. For this purpose, a predetermined amount (one drop in the first embodiment) of the polyethylene glycol 11 is dropped on the water receiving tray 3 via the conduit 14. Since the polyethylene glycol 11 is soluble in water, the polyethylene glycol 11 is uniformly dispersed in the water for evaporation 2 in the water tank 1.

The evaporating water 2 reaches the evaporating dish 4 and the evaporating water 2
When the liquid level exceeds the safe range, a liquid level detection sensor (not shown) operates and the heater 6 is energized. The temperature of the evaporating dish 4 rises due to the heat generated by the heater 6, and the evaporating water 2 receives this heat to evaporate. The non-volatile components in the evaporating water 2 are deposited and deposited in the evaporating dish 4 by this evaporation. However, as shown in FIG. 4, the water-soluble polymer, polyethylene glycol 11, covers the scale around like a film. Does not become hard.

Here, the reason why one drop of the polyethylene glycol 11 is dropped will be described. One drop of polyethylene glycol 11 from container 9 shown in Embodiment 1 is about 50 m
g. Further, since the capacity of the water tank 1 is about 5 liters, according to the first embodiment, one drop of the polyethylene glycol 11 is equivalent to 1 / 100,000 in weight ratio of water. Also, the reason why 1 / 100,000 polyethylene glycol is required is that, as shown in Table 1, when polyethylene glycol is dropped at a weight ratio of 10 to 1,000,000 water, the scale does not adhere strongly to the evaporating dish 4. This has been confirmed experimentally. However, there is no clear measurement method for determining whether the cleaning treatment is difficult due to strong adhesion to the evaporating dish 4, and this time is a sensory evaluation.

[Table 1] As shown in Table 1, when the weight ratio of polyethylene glycol is 100 or more with respect to 1,000,000 water, the effect of preventing the adhesion of scale is further enhanced, and the adhesion to the evaporating dish 4 is further weakened. Even the scales come off.

As described above, according to the first embodiment, since polyethylene glycol, which is a kind of nonvolatile water-soluble polymer, is dissolved in water for evaporation, scale is generated in the humidifier by evaporation of water. However, it does not become hard because polyethylene glycol is mixed in the scale. Further, since polyethylene glycol is water-soluble, the produced scale can be washed with water, and the evaporating dish can be easily cleaned.

Embodiment 2 FIG. 5 is a cross-sectional view of a humidifier according to Embodiment 2 of the present invention. In Embodiment 1, one drop of polyethylene glycol is provided by installing a water tank.
Although it was configured to be dropped, the second embodiment is a configuration that applies the natural diffusion of water and polyethylene glycol.

In the figure, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description is omitted. 14 is a container of polyethylene glycol 11 arranged in the middle of the water channel 5, 15 is a conduit from the container 14 to the water channel 5, and 16 is a conduit 15
At the tip. The opening area of the tip 16 is adjusted according to the amount of the polyethylene glycol 11 added. The diffusion amount of the polyethylene glycol 11 is equivalent to 1 (weight ratio) with respect to 100,000 water in a humidifier that evaporates from 300 ml to 500 ml per hour with an opening area of the tip portion 0.1 of 0.1 square millimeter. The diffusion of polyethylene glycol 11 has been obtained experimentally. Table 2 experimentally shows the diffusion of polyethylene glycol into water without water flow.

[0017]

[Table 2]

Next, the operation will be described. The evaporating water 2 is put in the water tank 1 and placed on the water receiving section 3. Thereby, the evaporating water 2 reaches the evaporating dish 4. Then, the water for evaporation 2 is supplied with polyethylene glycol from the distal end portion 16 of the conduit 15 opened to the water channel 5. Even when the scale is generated by the evaporation of water from the evaporating water 2, the polyethylene glycol is present around the scale as in the first embodiment, so that the scale does not become hard and can be washed with water.

Therefore, as in the first embodiment, since the non-volatile polyethylene glycol is dissolved in the evaporating water, even if scale is generated in the humidifier due to evaporation of the water,
The scale does not become hard because polyethylene glycol, which is a water-soluble polymer, is mixed in the scale. Further, since the polyethylene glycol is added little by little, the effect can be obtained in a long term.

In the above-described embodiment, polyethylene glycol is described as the water-soluble polymer substance. However, the present invention is not limited to this. For example, the same effect can be obtained by using polyvinyl alcohol.

[0021]

As described above, according to the humidifier of the present invention, since the water-soluble polymer is mixed with the water to be heated, the scale due to the evaporation residue such as tap water is not affected by the water quality. By washing the evaporating dish with water without curing the scale, the scale can be easily removed and the scale can be cleaned.

Further, by mixing polyethylene glycol, which is a water-soluble polymer, at least 1 / 100,000 of the weight of the water to be heated, the scale is easily cured by washing the evaporating dish with water without curing the scale. And can be cleaned.

When supplying water, polyethylene glycol is added by utilizing the weight of the water tank.
Long-term effects are obtained.

Further, if the natural diffusion of polyethylene glycol is controlled by, for example, the opening area of the conduit, a mechanism for applying and removing the water tank is not required, and a long-term effect can be obtained.

[0025]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a humidifier showing a first embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of the humidifier shown in FIG. 1 with a water tank removed.

FIG. 3 is an enlarged view of a main part showing a state where a water tank of the humidifier shown in FIG. 1 is mounted.

FIG. 4 is an enlarged sectional view showing a state of a wall surface of an evaporating dish of the humidifier shown in FIG.

FIG. 5 is a sectional view of a humidifier according to a second embodiment of the present invention.

[Explanation of symbols]

1 water tank, 2 evaporating water, 3 water receiving section, 4 evaporating dish, 5 water channel, 6 heater, 7 main body case, 8 humidifier, 9 polyethylene glycol container, 10 seal section, 11 polyethylene glycol, 12 metering addition lever, 13 conduit, 14 container of polyethylene glycol, 15 conduit, 16 tip.

Claims (4)

[Claims] 1. A humidifier of the heating type, wherein a water-soluble polymer is mixed with water to be heated. 2. A humidifier, wherein polyethylene glycol is added to said water in an amount of at least one hundred thousandth of the weight of the water to be heated. 3. A water tank for storing water to be heated, a water receiving unit for receiving water from the water tank, an evaporating unit for heating the water, and an evaporating unit for transferring the water from the water receiving unit to the evaporating unit. In a humidifier provided with a water channel for guiding, a container containing a water-soluble polymer is provided, and when the water tank is placed, the water-soluble polymer is added to the water from the container by the weight of the water tank. A humidifier characterized by that. 4. A water tank for storing water to be heated, a water receiver for receiving water from the water tank, an evaporator for heating the water, and the evaporator for water from the water receiver to the evaporator. In a humidifier provided with a water channel for guiding, a container containing a water-soluble polymer and a conduit for guiding the water-soluble polymer from the container to the water channel are provided, and the water-soluble polymer is added to the water by natural diffusion. Humidifier characterized by being added.