JP2020134004A - Humidification device, ventilation device, and air conditioner - Google Patents

Abstract

To provide a humidification device capable of reducing adsorption of odor to a water-retaining material for humidification while securing humidification performance.SOLUTION: A humidification device 1 includes a water supply mechanism 40 connected to a water supply source, and a water retaining material 2a formed into a plate shape, disposed at a lower part of the water supply mechanism 40 to retain the water supplied from the water supply mechanism 40, and humidifying the air circulated on a surface. The water retaining material 2a for humidification includes a hydrophilic treatment region on which a hydrophilic treatment is performed to provide a hydrophilic property.SELECTED DRAWING: Figure 1

Description

The present invention relates to a humidifier, a ventilator and an air conditioner that generate humidified air.

Humidifying methods in a humidifying device that generates humidified air include a natural evaporation type, an electric heating type, a water spray type, and an ultrasonic type. The natural evaporation type humidifier is particularly useful in a place where it is operated for a long time because the running cost can be easily suppressed as compared with other types of humidifiers.

There are various forms of the natural evaporation type humidifier. Among them, there are "dropping type" and "flowing type" as a humidifying method suitable for long-term use with little change in humidifying capacity over time. Drip-type or flow-down type humidifiers tend to be used in commercial humidifiers such as air conditioners.

Some drip-type or flow-down type humidifiers use a water-retaining material for humidification. As a humidifying device using a drip-type or flow-down type humidification method, Patent Document 1 states that a non-woven fabric made of resin fibers such as polyester is used to provide a water-retaining material for humidification with high mechanical strength and high water dispersibility. A configuration is disclosed in which silica fine particles having a small particle size are impregnated to ensure water retention in the entire humidifying water-retaining material.

Japanese Unexamined Patent Publication No. 1-283129

However, according to the technique disclosed in Patent Document 1, although the water-retaining material for humidification itself can have high water dispersibility, the water-retaining material for humidification is made of silica fine particles adsorbed to have water dispersibility. When it is dry, odorous substances from the environment are also adsorbed, and the odorous substances are re-dissipated all at once by passing water through the water-retaining material for humidification during humidification, which causes a problem of foul odor.

The present invention has been made in view of the above, and an object of the present invention is to obtain a humidifying device that reduces the adsorption of odors to a water-retaining material for humidification while ensuring a humidifying ability.

In order to solve the above-mentioned problems and achieve the object, the present invention is formed in a plate shape using a water supply mechanism connected to a water supply source and a hydrophobic material, and is installed below the water supply mechanism. It has a water-retaining material for humidification that retains the water supplied from the water supply mechanism and humidifies the air flowing on the surface. The water-retaining material for humidification includes a hydrophilization-treated portion.

According to the present invention, it is possible to obtain a humidifying device that reduces the adsorption of odors to the water-retaining material for humidification while ensuring the humidifying capacity.

The figure which shows the structure of the humidifying apparatus which concerns on Embodiment 1 of this invention. Perspective view of the humidifying body of the humidifying device according to the first embodiment. Perspective view of the water-retaining material for humidification of the humidifying device according to the first embodiment. Front view of the water-retaining material for humidification of the humidifying device according to the first embodiment. Front view of the water-retaining material for humidification of the humidifying device according to the second embodiment of the present invention. Front view of the water-retaining material for humidification of the humidifying device according to the third embodiment of the present invention. Front view of the water-retaining material for humidification of the humidifying device according to the fourth embodiment of the present invention. The figure which shows an example of the ventilation apparatus which concerns on Embodiment 5 of this invention. The figure which shows an example of the air conditioner which concerns on Embodiment 5.

The humidifying device, the ventilation device, and the air conditioner according to the embodiment of the present invention will be described in detail below with reference to the drawings. The present invention is not limited to this embodiment.

Embodiment 1.
FIG. 1 is a diagram showing a configuration of a humidifying device according to a first embodiment of the present invention. The humidifying device 1 includes a water supply mechanism 40 connected to a water supply source, and a humidifying body 20 installed below the water supply mechanism 40 and provided with a water retaining material 2a for humidification. The humidifying water-retaining material 2a retains the water supplied from the water supply mechanism 40 and humidifies the air flowing on the surface. The water supply mechanism 40 includes a water supply pipe 3 that is connected to a water supply source integrated with the water supply facility and supplies water for humidification to the humidifying body 20, and a water storage tank 12 that supplies water through the water supply pipe 3. A water supply valve 3a, which is a solenoid valve of the water supply system, is installed in the water supply pipe 3. The water supply valve 3a switches whether to supply or shut off the water for humidification to the water storage tank 12. Further, the water supply valve 3a adjusts the pressure and the flow rate of the water supplied to the water storage tank 12. The water supply mechanism 40 may include a strainer that prevents the ingress of dust.

The humidifying device 1 includes an intake port 1a for taking in air and a discharge port 1b for discharging air. A blower 5 for sending air to the humidifying body 20 and blowing out the air again is incorporated in the ventilation upper side or the ventilation lower side of the humidifying body 20. FIG. 1 shows a state in which the blower 5 is incorporated on the upper side of the ventilation ventilation of the humidifying body 20. The blower 5 forms an air flow that flows in from the intake port 1a and flows out from the discharge port 1b.

The humidifying device 1 includes a drain pipe 4 for discharging the water remaining without being humidified by the humidifying body 20 to the outside. Further, the humidifying device 1 includes a control device 6 for operating equipment such as a blower 5 and a water supply valve 3a, and a drain pan 7 for receiving drainage and draining it to the outside. The drain pipe 4 is connected to the drain pan 7. The drain pan 7 and the drain pipe 4 are drainage portions for draining the water remaining without being humidified from the humidifying water retention material 2a. The drainage portion is provided below the humidifying body 20.

It is preferable that all the connection portions of the water supply mechanism 40 except the connection portion with the water supply source side are concentrated above the drain pan 7.

FIG. 2 is a perspective view of a humidifying body of the humidifying device according to the first embodiment. FIG. 3 is a perspective view of a water-retaining material for humidification of the humidifying device according to the first embodiment. The water-retaining material 2a for humidification is arranged along the first direction, which is the direction indicated by the arrow Z in FIG. The water-retaining material 2a for humidification is formed in a plate shape using a hydrophobic material. As shown in FIG. 3, the humidifying water-retaining material 2a has a flat plate shape. As shown in FIG. 2, the plurality of humidifying water-retaining materials 2a are installed at intervals from each other. As shown in FIG. 2, the diffusion member 30 is in contact with the upper part of the humidifying body 20. The diffusion member 30 is arranged so as to extend along the first direction in which the plurality of humidifying water-retaining materials 2a are arranged, and the plurality of humidifying water-retaining materials 2a come into contact with one diffusion member 30 together. As shown in FIG. 1, the humidifying water-retaining material 2a is housed and fixed in a casing 10 provided with an opening. The casing 10 has a box-shaped casing upper portion 10a whose lower side is open, and a frame-shaped casing lower portion 10b. In addition to the water storage tank 12 and the diffusion member 30, the casing upper portion 10a houses the upper portion of the humidifying water retention material 2a inside. The lower part 10b of the casing covers a plurality of water-retaining materials for humidification 2a arranged at intervals from the arrangement direction and the downward direction.

At least one humidifying body 20 is installed on the drain pan 7. When a plurality of humidifiers 20 are installed, the water supply mechanism 40 can be shared by the plurality of humidifiers 20.

As shown in FIG. 2, a water storage tank 12 for storing water for supplying the humidifying water-retaining material 2a is installed above the humidifying water-retaining material 2a. The water storage tank 12 is provided with a water supply port 11 for injecting water from the water supply pipe 3.

The casing 10 is formed by a molding method such as injection molding using a thermoplastic plastic material containing ABS (Acrylonitrile Butadiene Styrene) resin, polystyrene (PolyStyrene: PS) resin, or polypropylene (PolyPropylene: PP) resin.

A positioning protrusion that regulates the position of the humidifying water-retaining material 2a is provided at a portion of the casing 10 that comes into contact with the humidifying water-retaining material 2a. Since the humidifying water-retaining material 2a softens when it contains water and is deformed by the weight of water, the position of the humidifying water-retaining material 2a is regulated at the outer peripheral portion of the humidifying water-retaining material 2a that comes into contact with the casing 10. The dimensions of the flow path between the water-retaining material 2a for humidification can be secured so that the air can flow uniformly.

As a result, the decrease in pressure loss of the humidifying body 20 is suppressed, and the entire surface of the humidifying water retaining material 2a is effectively used as a humidifying surface, so that the amount of humidification increases as compared with the case where the humidifying water retaining material 2a is distorted. The effect can be expected.

A plurality of water injection holes 12a for dropping water onto the diffusion member 30 are formed on the bottom surface of the water storage tank 12. The water storage tank 12 and the diffusion member 30 are integrally combined, and the integrated parts are sandwiched and held by the upper portion 10a of the casing. The detected water level may be fed back to control the opening and closing of the water supply valve 3a by the control device 6 shown in FIG.

The water storage tank 12 is formed by a molding method such as injection molding using a thermoplastic plastic containing ABS resin, PS resin or PP resin as a material. Since the water storage tank 12 uses a resin material as a material, if the surface is smooth, the contact angle in water is large, about 90 degrees or more, and the surface is hydrophobic. Therefore, the water storage tank 12 is excellent in hygiene because water does not easily remain on the inner surface. Here, hydrophobicity has a contact angle of 90 degrees or more, hydrophilicity has a contact angle of 40 degrees or more and less than 90 degrees, and superhydrophilicity has a contact angle of less than 40 degrees.

The water supply port 11 is provided above the humidifying body 20 and above the humidifying water-retaining material 2a in order to supply water to the water storage tank 12. The shape of the water supply port 11 may be a shape that matches the water supply pipe 3, and a return structure may be formed so that the water supply port 11 does not easily come off, or the water supply port 11 may be tied with a hose band. The position of the water supply port 11 is not restricted as long as it has a structure in which water can be supplied from the upper part of the water retention material 2a for humidification. However, considering the case where water leaks from the joint between the water supply pipe 3 and the water supply port 11. It is preferably placed on the windward side of the air stream.

By arranging the water supply port 11 on the windward side of the air flow, the water leaking from the joint between the water supply pipe 3 and the water supply port 11 rides on the air flow and is guided to the leeward side, that is, the humidifying water retention material 2a side for humidification. Since it is absorbed by the body 20, it is possible to reduce the scattering of water on the leeward side of the humidifying body 20.

If the amount of water supplied is excessive with respect to the amount of humidification, the amount of water that flows out from the drainage section without being humidified and is wasted increases. Therefore, the water supply port 11 is provided with a mechanism for reducing the amount of water to the water storage tank 12. It is preferable to adjust the amount of water to be supplied. When adjusting the amount of water, it is necessary to be able to supply a larger amount of water than the maximum amount of humidification of the humidifying body 20. It should be noted that there is no functional problem even if the amount of water is adjusted by using a metal mesh or a porous material for adjusting the amount of water.

The diffusion member 30 is made of a porous plate material. Since the diffusion member 30 absorbs the water dropped from the water storage tank 12 and sends the water to the humidifying body 20, the higher the hydrophilicity of the surface of the material, the better the permeability and the flow rate through which water can pass increases. Further, since the diffusion member 30 is always in contact with water, it is preferable that the diffusion member 30 is made of a material that is not easily deteriorated by water. Examples of the material that is not easily deteriorated by water include polyester such as polyethylene terephthalate (PET) resin, which is a resin, cellulose and titanium, and a metal such as copper or stainless steel. Further, in order to increase the hydrophilicity of the surface of the material, the diffusion member 30 may be subjected to a hydrophilic treatment.

A part of the lower end of the diffusion member 30 and the upper end of the humidifying water-retaining material 2a are installed in contact with each other. If the diffusion member 30 and the humidifying water-retaining material 2a are in contact with each other, water flows down to the humidifying water-retaining material 2a without stagnation due to the action of the capillary force of the humidifying water-retaining material 2a. Taking into consideration the variation during assembly of the diffusion member 30 and the humidifying water retention material 2a and the influence of vibration during transportation, the lower end of the diffusion member 30 and the upper end of the humidification water retention material 2a are inserted into each other so that the diffusion member 30 is inserted into the diffusion member 30. And the water-retaining material 2a for humidification may be connected.

The diffusion member 30 is provided to evenly diffuse the water dripping from the water storage tank 12 located above in the first direction. That is, the diffusion member 30 is provided to uniformly supply water to the plurality of humidifying water-retaining materials 2a arranged side by side in the first direction. Therefore, when a plurality of humidifying water-retaining materials 2a are integrated and water can be diffused in the first direction between the plurality of humidifying water-retaining materials 2a, or when the upper portions of the humidifying water-retaining materials 2a are bent and adjacent to each other. When the humidifying water-retaining materials 2a are brought into contact with each other, the humidifying water-retaining material 2a itself has a water diffusing function similar to that of the diffusing member 30. Further, instead of using the diffusion member 30, the humidifying water-retaining material 2a can be directly inserted into the water injection hole 12a. In these cases, there is no functional problem even if water is directly dropped from the water storage tank 12 onto the humidifying water-retaining material 2a without using the diffusion member 30. In the configuration using the diffusion member 30, the diffusion member 30 forms a part of the water supply mechanism 40.

FIG. 4 is a front view of a water-retaining material for humidification of the humidifying device according to the first embodiment. The water-retaining material 2a for humidification is formed of a porous plate material like the diffusion member 30. A suitable condition for the water-retaining material 2a for humidification, which is the material of the humidifying body 20, is that the hydrophilization treatment portion 22a is provided only on the upper portion as shown in FIG. 4, and the other portions are formed of the hydrophobic material. It is a porous plate with poor water diffusivity. Examples of the hydrophobic material include PET and polyester which are resins, and titanium, copper and stainless steel which are metals.

For the hydrophilic treatment, a plasma treatment can be applied in which a porous plate of a hydrophobic material is irradiated with a plasma beam using a high voltage source to dissociate the molecules on the surface of the porous plate to make it hydrophilic. .. By irradiating a porous plate material formed of a hydrophobic material with a patterned plasma beam, a humidifying water-retaining material 2a having a hydrophilization treatment portion 22a provided only on the upper portion can be obtained.

Further, the porous plate material can be hydrophilized by using a binder and a hydrophilizing agent. Phenolic resins can be exemplified as the binder. Examples of the hydrophilizing agent include a liquid in which fine particles of alumina, silica, talc, or carbon black are dispersed. The hydrophilization treatment using the binder and the hydrophilizing agent can be performed by adhering the melted binder to the sheet material and then applying the hydrophilizing agent. By setting the pattern for adhering the binder to the sheet material or the pattern for applying the hydrophilizing agent only to the upper part of the sheet material, it is possible to obtain a humidifying water-retaining material 2a having the hydrophilization treatment portion 22a provided only on the upper part. it can. By applying the hydrophilizing agent using a roller or a spray, the application pattern of the hydrophilizing agent can be easily changed.

However, if a material having better water absorption than the diffusion member 30 is used for the humidifying water-retaining material 2a, the humidifying water-retaining material 2a absorbs water before the water diffuses inside the diffusing member 30, so that each humidifying material 2a absorbs water. The uniformity of water supply to the water retention material 2a may decrease. In this case, a countermeasure can be taken by increasing the vertical dimension of the diffusion member 30. If there is a dimensional restriction in the height direction of the entire humidifying body 20, the vertical dimension of the diffusing member 30 is also restricted. Therefore, a material having a lower water absorption than the diffusing member 30 is used as a water retaining material for humidification. It is preferable to use it for 2a to reduce the vertical dimension of the diffusion member 30.

As shown in FIG. 3, a convex portion 21 is provided on the surface of the humidifying water retention material 2a. The convex portion 21 keeps the distance between the humidifying water-retaining materials 2a. The convex portion 21 can be formed by pressing a jig against the water-retaining material 2a for humidification and plastically deforming the portion against which the jig is pressed. By alternately arranging two types of humidifying water-retaining materials 2a having different arrangement positions of the convex portions 21 on the humidifying water-retaining material 2a, a function of keeping the distance between the humidifying water-retaining materials 2a constant can be obtained. In the humidifying body 20, it is sufficient that the interval between the humidifying water-retaining material 2a is kept constant along the first direction, and teeth are formed at regular intervals at intervals corresponding to the plate thickness of the humidifying water-retaining material 2a. The comb may be engaged with the humidifying water-retaining material 2a to maintain the interval, or the wave-shaped humidifying water-retaining material 2a may be laminated in a honeycomb shape to maintain the interval.

The portion of the water-retaining material for humidification 2a covered by the lower portion 10b of the casing is ventilated during humidification, and the portion covered by the upper portion 10a of the casing is not ventilated during humidification. The height dimension of the hydrophilization treatment portion 22a provided on the upper part of the water retention material for humidification 2a is set to Y1 or less so as not to be included in the ventilation range of the height Y that is ventilated during humidification. That is, the hydrophilization treatment portion 22a is formed in a portion through which the flowing air does not pass. That is, the hydrophilization treatment portion 22a is formed at a portion that does not overlap with the opening of the casing 10 when viewed from the direction along the flow of the flowing air. When the hydrophilization treatment portion 22a is included in the ventilation range of the height Y, it is left when the humidifying water retention material 2a is dry due to the influence of silica fine particles or the like generally used for hydrophilization. If it is blown or ventilated, the odorous components contained in the air will be adsorbed on the silica fine particles. Therefore, the hydrophilization treatment portion 22a is not included in the ventilation range of the height Y, and the hydrophilization treatment portion is so that water permeates in the ventilation direction of the humidifying water retention material 2a shown by the arrow X in FIG. It is important to take a large height dimension Y1 of 22a.

In the humidifying device 1 according to the first embodiment, the water supplied from the water storage tank 12 to the humidifying water-retaining material 2a via the diffusion member 30 is humidified by the hydrophilization treatment portion 22a provided on the upper part of the humidifying water-retaining material 2a. Since the water retaining material 2a is diffused in the ventilation direction, it is possible to expand the effective humidification area and secure the amount of humidification.

When the hydrophilization treatment portion 22a is not provided, the water-retaining material for humidification made of the porous resin or metal plate is hydrophobic, so that the water supplied from the diffusing member to the water-retaining material for humidification diffuses in the ventilation direction. Instead, it flows down as it is in the vertical direction due to the action of weight. In this case, the effective area for humidification actually used for humidification is smaller than the area of the portion of the water-retaining material for humidification that is exposed to the air, and there is a concern that the amount of humidification is lower than the design value. In the humidifying device according to the first embodiment, since the water-retaining material 2a for humidification is provided with the hydrophilization treatment portion 22a, it is possible to prevent the humidification amount from being lower than the design value.

Further, when the humidifying water-retaining material 2a is left in a dry state and is ventilated, the odorous component contained in the air does not adsorb to the humidifying water-retaining material 2a and is humidified after a long blank such as at the beginning of the humidifying season. Even in the situation where the air quality is excellent, the re-emission of the odor is suppressed and the humidification operation with excellent air quality becomes possible.

As described above, the humidifying device according to the first embodiment can suppress the adsorption of odor to the humidifying water-retaining material 2a while ensuring the humidifying ability.

Embodiment 2.
FIG. 5 is a front view of a water-retaining material for humidification of the humidifying device according to the second embodiment of the present invention. In the humidifying water-retaining material 2b according to the second embodiment, a plurality of hydrophilized treatment sites 22b are provided at intervals of a certain length Y2.

In the humidifying water-retaining material 2b according to the second embodiment, when the supplied water propagates in the humidifying water-retaining material 2b in the vertical direction, the water is transmitted to the hydrophilization treatment portion 22b to supply water in the ventilation direction. It can be dispersed. Therefore, even if the height dimension Y1 in the non-ventilated range is such that the dispersion of water along the ventilation direction is insufficient even if the hydrophilization treatment portion 22a is provided in the entire non-ventilated range, the second embodiment. The humidifying water-retaining material 2b can disperse water in the ventilation direction.

At this time, the height dimension ΔY of the hydrophilization treatment portion 22b may satisfy 0.05 ≦ ΔY / (ΔY + Y2) ≦ 0.1. The height dimension Y1 of the hydrophilization treatment portion 22a of the first embodiment shown in FIG. 4 becomes less than 5% of the height dimension of the humidifying water retaining material 2a when the area of the humidifying water retaining material 2a is effectively utilized. .. Therefore, for the humidifying water-retaining material 2b according to the second embodiment, 0.05 ≦ ΔY / (ΔY + Y2) is appropriate for the purpose of dispersing water in the ventilation direction. Further, from the viewpoint of odor adsorption, the ratio of the area occupied by the hydrophilization treatment portion 22b to the surface area of the humidifying water retention material 2b should be small, and by suppressing the area ratio to 10% or less, the entire surface becomes hydrophilic. Compared with the treated water-retaining material for humidification, the generation of odor can be suppressed by 90%. Therefore, it is preferable that the ratio of the hydrophilization treatment portion 22b to the surface of the humidifying water retention material 2a is 5% or more and 10% or less.

It is said that the sensitivity of a person's sense of smell is usually an index of sensitivity when the logarithm of concentration is taken. Therefore, considering the sensitivity of human olfaction, the humidifying water-retaining material 2b according to the second embodiment that suppresses the generation of odor by 90% can reduce the odor by half with the sensitivity of olfaction. When the risk of odor generation is not large and it is necessary to secure a sufficient amount of humidification, the humidifying water-retaining material 2b of the second embodiment can be used to obtain the humidifying water-retaining material 2a of the first embodiment. The number of humidifying water-retaining materials 2b can be reduced to reduce costs, water can be dispersed in the ventilation direction, and adsorption of odorous substances in the air can be suppressed.

Embodiment 3.
FIG. 6 is a front view of a water-retaining material for humidification of the humidifying device according to the third embodiment of the present invention. The humidifying water-retaining material 2c according to the third embodiment is provided with a plurality of hydrophilization treatment portions 22c having a height dimension ΔY3 at intervals of a height dimension Y3. An angle θ is inclined between the lower end of the hydrophilization treatment portion 22c and the leeward end surface, and the height of the upstream end portion of the circulating air is on the downstream side of the hydrophilization treatment portion 22c. It is below the height of the edge. The hydrophilization treatment site 22c extends in a direction along the flow of flowing air.

The water supplied from the water storage tank 12 to the humidifying water-retaining material 2c via the diffusion member 30 flows vertically through the humidifying water-retaining material 2c due to the influence of gravity. Since the hydrophilic treatment site 22c is inclined, the water that reaches the hydrophilic treatment site 22c diffuses along the surface of the highly hydrophilic hydrophilization treatment site 22c. Therefore, water supply and humidification are performed while collecting a large amount of water supply on the windward end face side of the water retention material for humidification 2c.

The angle θ depends on the velocity V1 of water flowing vertically through the non-hydrophilicated portion, the velocity V2 of water flowing horizontally through the hydrophilized portion 22c, the vertical dimension of the humidifying water retaining material 2c, and the horizontal dimension. Will be decided as appropriate. When a normal humidifying material is used, θ is preferably an angle between 45 and 90 degrees.

When the air flowing into the humidifying body 20 is preheated and introduced, the amount of humidification on the windward end face of the humidifying water retention material 2c is very large, and the scale component derived from calcium ions contained in the water is on the windward side. Easy to deposit on the end face. The humidifying device according to the third embodiment can concentrate the water supply on the windward end face of the water retaining material 2c for humidification as compared with the second embodiment, and under the condition that the humidifying load on the windward side such as heating and humidifying is high. When used, it is possible to suppress the early precipitation of scale components.

Embodiment 4.
FIG. 7 is a front view of a water-retaining material for humidification of the humidifying device according to the fourth embodiment of the present invention. The humidifying water-retaining material 2d according to the fourth embodiment is provided with a plurality of hydrophilization treatment portions 22d having a height dimension ΔY4 at intervals of a height dimension Y4. An angle θ is inclined between the lower end of the hydrophilization treatment portion 22d and the leeward end face, and the height of the upstream end portion of the circulating air is on the downstream side of the hydrophilization treatment portion 22d. It is above the height of the edge. The hydrophilization treatment portion 22d is not provided in the portion having the first length ΔX from the windward end face. The first length ΔX is 3 mm or more and 10 mm or less. The hydrophilization treatment site 22d extends in a direction along the flow of flowing air.

The water supplied from the water storage tank 12 to the humidifying water-retaining material 2d via the diffusion member 30 flows vertically along the humidifying water-retaining material 2d due to the influence of gravity. Since the hydrophilization treatment site 22d is provided with an angle θ, the water that has reached the hydrophilic treatment site 22d tends to diffuse along the highly hydrophilic hydrophilization treatment site 22d while being affected by gravity. Therefore, water supply and humidification are performed while collecting a large amount of water supply on the leeward side of the water retention material for humidification 2d.

Since the hydrophilization treatment portion 22d is arranged with a gap of a first length ΔX from the windward end face, water is not supplied to the range of ΔX from the windward end face. The range of ΔX from the windward end face is the range in which the amount of substance transmitted corresponding to the humidification amount is large, but since water does not flow in this range, the scale caused by calcium ions in the water on the windward top face side. No concentration of ingredients occurs. The angle θ between the hydrophilized portion 22d and the leeward end face is preferably an angle between 90 degrees and 135 degrees.

In the third embodiment, water is collected on the windward end face side where the amount of humidification is large to suppress the concentration of scale components, but when the air flowing into the humidifier 20 is very dry, it is aimed at. , Despite collecting water, the scale component is concentrated on the windward end face. Under such conditions, since the supplied water is collected on the windward side, the amount of scale precipitation on the windward end face increases as a result, and the problem of scale generation occurs at an early stage.

By selecting the configuration of the fourth embodiment, even when the air flowing into the humidifying body 20 is in a very dry condition, the wind can exert the same effect as that of the first to third embodiments. Precipitation of scale components on the upper end face can be suppressed.

As described above, the humidifying device according to the fourth embodiment has a large amount of humidification on the windward end face of the humidifying body 20, and the conditions under which overdrying cannot be prevented even by the measures for collecting the water supply in the third embodiment on the windward end face. But overdrying can be prevented. Specifically, since the air before heating is low-temperature and low-humidity air, it is suitable when used under the condition that it becomes extremely low-humidity air of 10% RH or less after heating and is introduced into the humidifier 20. is there.

Embodiment 5.
FIG. 8 is a diagram showing an example of a ventilation device according to a fifth embodiment of the present invention. FIG. 9 is a diagram showing an example of the air conditioner according to the fifth embodiment. The ventilation device 200 and the air conditioner 300 include the humidifying device 1 according to the first embodiment.

As shown in FIG. 8, the ventilation device 200 takes in the air of the external OD of the house into the indoor ID of the house 250. The air intake 201 of the ventilation device 200 is connected to the intake port 1a of the humidifying device 1. The air of the external OD that has flowed into the humidifying device 1 from the intake port 1a is humidified by the humidifying device 1. The humidified external OD air is supplied to the indoor ID from the discharge port 1b. In this way, the ventilation device 200 provided with the humidifying device 1 can humidify the air of the external OD and supply it to the indoor ID of the house 250.

As shown in FIG. 9, the air conditioner 300 includes an outdoor unit 301, an indoor unit 302, and a humidifying device 1. The outdoor unit 301 is installed in the external OD of the house 250, and the indoor unit 302 is installed in the indoor ID of the house 250. The indoor unit 302 includes a humidifying device 1. From the outdoor unit 301, the refrigerant is supplied to the heat exchanger 303 of the indoor unit 302. The blower 304 of the indoor unit 302 takes in the air of the indoor ID from the air intake port 305 and sends it to the heat exchanger 303. The destination of the air that has passed through the heat exchanger 303 and exchanged heat is switched by the switch 306 to the humidifying device 1 and the passage 308 that is directly connected to the air discharge port 307. FIG. 9 shows a case where the destination of the air passing through the heat exchanger 303 is the humidifying device 1, that is, a state in which the air passing through the heat exchanger 303 is humidified.

The air that has passed through the heat exchanger 303 flows into the intake port 1a of the humidifying device 1 and is then humidified by the humidifying device 1. The humidified external OD air is discharged to the outside of the humidifying device 1 from the discharge port 1b, and is supplied to the indoor ID from the air discharge port 307. When it is not necessary to humidify the air that has passed through the heat exchanger 303, the switch 306 sets the supply destination of the air that has passed through the heat exchanger 303 to the passage 308. The air that has passed through the heat exchanger 303 is supplied to the indoor ID from the air discharge port 307 after passing through the passage 308. In this way, the air conditioner 300 can humidify the air of the external OD and supply it to the indoor ID of the house 250. Further, when the air conditioner 300 does not need to be humidified, the air that has passed through the heat exchanger 303 can be supplied to the indoor ID without being humidified.

In the above description, an example in which the ventilation device 200 and the air conditioner 300 include the humidifying device 1 according to the first embodiment has been described, but the ventilation device 200 and the air conditioner 300 are implemented from the second embodiment. The humidifying device 1 using any of the humidifying water-retaining materials 2b, 2c, and 2d according to the fourth aspect may be provided.

The configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

1 Humidifying device, 1a Intake port, 1b Discharge port, 2a, 2b, 2c, 2d Moisturizing water retention material, 3 Water supply pipe, 3a Water supply valve, 4 Drain pipe, 5,304 blower, 6 Control device, 7 Drain pan, 10 Casing 10a Casing upper part, 10b Casing lower part, 11 Water supply port, 12 Water storage tank, 12a Water injection hole, 20 Humidifier, 21 Convex part, 22a, 22b, 22c, 22d Hydrophilization treatment site, 30 Diffusion member, 40 Water supply mechanism, 200 Ventilator, 201,305 air intake, 250 houses, 300 air conditioner, 301 outdoor unit, 302 indoor unit, 303 heat exchanger, 306 switch, 307 air outlet, 308 passage.

Claims (8)

A water supply mechanism connected to the water source and
It is formed in a plate shape using a hydrophobic material, and is installed below the water supply mechanism to retain the water supplied from the water supply mechanism and to humidify the air flowing on the surface. Have,
The humidifying water-retaining material is a humidifying device including a hydrophilized portion that has been subjected to a hydrophilized treatment. The humidifying water-retaining material is housed in a casing provided with an opening.
The humidifying device according to claim 1, wherein the hydrophilization treatment site is formed in a portion that does not overlap with the opening when viewed from a direction along the flow of flowing air. The humidifying device according to claim 1, wherein a plurality of the hydrophilization treatment sites are provided on the humidifying water-retaining material at intervals in the vertical direction. The hydrophilization treatment portion extends in a direction along the flow of the flowing air, and the height of the upstream end portion of the circulating air is equal to or less than the height of the downstream end portion. The humidifying device according to claim 3. The hydrophilization treatment portion extends in a direction along the flow of the flowing air, and the height of the upstream end portion of the circulating air is equal to or higher than the height of the downstream end portion. The humidifying device according to claim 3. The humidifying device according to claim 5, wherein the hydrophilization treatment portion is provided at a portion other than a portion having a first length in the ventilation direction from the windward end face of the humidifying water retention material. A ventilation device including the humidifying device according to any one of claims 1 to 6. An air conditioner comprising the humidifying device according to any one of claims 1 to 6.

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