JPH087293Y2 - humidifier - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifier for adding moisture to circulating air.

[0002]

2. Description of the Related Art Humidifiers that are well known in the past include:
There is a method in which the humidifying element made of a water-absorbent material is brought into direct contact with the air to take in the water vaporized from the humidifying element into the air for humidification.

However, in the case of the humidifier having the above-described structure, since the water is sucked up by the humidifying element, various components contained in the water are liable to be accumulated in the humidifying element to cause clogging. There's a problem.

Therefore, as a material that has been developed in recent years, a material that is permeable to water vapor and impermeable to water has come to be known. The development of a humidifier that utilizes

An example of such a humidifier is Japanese Patent Laid-Open No. 2-1.
As disclosed in Japanese Patent No. 11377, a large number of hollow tubes made of a porous material that is permeable to water vapor and impermeable to water are arranged in parallel in a container. However, there is a structure in which water vapor is allowed to permeate from the water side to the air side through the hollow tube by forming an air passage inside the hollow tube and a water passage inside the container.

By the way, when water vapor is permeated into the air through the hollow tube made of a porous material as described above, the permeation amount of water vapor can be increased as the wall thickness of the hollow tube becomes smaller. It is common sense in mass transfer.

On the other hand, if the wall thickness of the hollow tube is reduced, the strength of the hollow tube is reduced. Therefore, when the inside of the hollow tube is used as an air passage and the outside of the hollow tube is used as a water passage, There is a risk that the hollow pipe may buckle or shrink and be deformed under the influence of water pressure.

[0008]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is permeable to water vapor and impermeable to water. It is an object of the present invention to prevent the hollow tube from being deformed even if the hollow tube made of the porous material is thinned.

[0009]

In the present invention, as means for solving the above problems, as shown in the drawings, it is permeable to water vapor and impermeable to water. A large number of hollow tubes 11, 11, ... Made of porous material are arranged in parallel in the water container 12, and the hollow tubes 11, 11 ,.
In a humidifier having an air passage inside, a cylindrical basket-type reinforcing spacer 14 having an outer diameter equal to the inner diameter of the hollow tube 11 and a large opening ratio is fitted in each hollow tube 11. Along with the insertion and fixing, the reinforcing spacer 14 is provided with a spiral guide 14c that promotes turbulence of the air flow.

[0010]

In the present invention, the following actions can be obtained by the above means.

That is, even if the hollow tube 11 is about to be contracted and deformed under the influence of water pressure due to the water existing outside the hollow tube 11, the reinforcing spacer 14 prevents the contraction and deformation. Since the aperture ratio of the reinforcing spacer 14 is increased, a sufficient amount of water vapor permeation is secured.
In addition, the air flow flowing through the hollow tube 11 is turbulent by the spiral guide 14c, and the generation of the boundary layer on the inner wall of the tube is suppressed.

[0012]

EFFECTS OF THE INVENTION According to the present invention, a large number of hollow tubes 11, 11, ... Made of a porous material that is permeable to water vapor and impermeable to water is used as a water container. In the humidifier arranged in parallel in 12, and having the air passages inside the hollow tubes 11, 11, ..., In each of the hollow tubes 11, an outer diameter equal to the inner diameter of the hollow tube 11 is provided. The hollow tube 1 having the cylindrical cage type reinforcing spacer 14 having a large opening ratio is fitted and fixed.
Since the reinforcing action of the reinforcing spacer 14 prevents the hollow tube from being contracted and deformed by the influence of water pressure due to the water existing outside 1, it is possible to reduce the thickness of the hollow tube 11. There is a practical effect that the humidifying performance can be improved.

Moreover, the reinforcing spacer 14 fitted and fixed in the hollow pipe 11 is provided with the spiral guide 14c for promoting the turbulence of the air flow, and the turbulence of the air flow flowing in the hollow pipe 11 is provided. Since the fluidization is promoted, generation of the boundary layer on the inner wall of the pipe is suppressed, and there is also a practical effect that the humidification performance can be further improved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 4, the humidifier A of this embodiment is used for humidifying the blown air F in the ceiling-embedded air conditioner B.

The air conditioner B has a casing 1 having an air inlet 2 and an air outlet 3, and the casing 1
It comprises a turbo fan 4 arranged inside the air suction port 2 and a heat exchanger 5 arranged on the blow-out side of the turbo fan 4, the downstream side of the heat exchanger 5. A humidifier A, which is the object of the present invention, is provided in the.
The air conditioner B is installed by embedding it in the opening 6 formed in the ceiling C with the air inlet 2 and the air outlet 3 facing downward. Reference numeral 7 denotes a drain pan.

During the heating operation of the air conditioner B, the air F sucked from the air suction port 2 by the turbo fan 4 is heated when passing through the heat exchanger 5,
In the process of passing through the humidifier A, it is humidified and blown out into the room from the air outlet 3.

As shown in FIGS. 1 to 3, the humidifier A is made of a porous material (for example, polysulfate) that is permeable to water vapor and impermeable to water. A large number of hollow tubes 11, 11, ... Made of a hydrophobic material such as tetrafluoroethylene, polysulfone) are arranged in a rectangular parallelepiped water container 12 in parallel and horizontally. The insides of the empty tubes 11, 11, ... Are used as air passages. Reference numeral 13 is a water supply pipe for supplying water into the water container 12, and a control valve (not shown) for maintaining the water level of the water container 12 at a predetermined position is provided in the middle of the water supply pipe.

A cylindrical cage-type reinforcing spacer 14 having an outer diameter equal to the inner diameter of the hollow tube 11 and a large opening ratio is fitted and fixed in each hollow tube 11 ( Figure 3
reference).

The reinforcing spacer 14 includes a plurality of linear frame portions 14a, 14a, ...
4a, 14a ··· is a cylindrical basket type consisting of spiral guides 14c that connect each other and have an apex angle toward the inner surface and have a triangular cross-section. It is composed of a thin plate (for example, a wall thickness of 0.1 to 1.0 mm) made of synthetic resin such as polycarbonate, polyacetal, vinyl chloride or metal.

The reinforcing spacers 14 are provided to prevent the hollow pipe 11 from contracting and deforming due to the water pressure of the water W existing outside the hollow pipe 11 (that is, inside the water container 12). In this case, the spiral guide 14c serves to promote the turbulence of the air flow F flowing in the hollow tube 11.

The humidifier A constructed as described above operates as follows.

When the air F flows through the hollow tubes 11, 11, ..., Water vapor permeates through the tube walls of the hollow tubes 11, 11 ,.

By the way, the water pressure of the water W existing in the water container 12 acts on the outer circumference of each hollow tube 11 in a direction to reduce and deform the hollow tube 11. Is prevented. Therefore, the hollow tube 11
Even if the wall thickness is reduced to increase the amount of water vapor permeation into the hollow tube 11, the hollow tube 11 is prevented from being contracted and deformed. That is, the humidifying performance of the humidifier A can be significantly improved while preventing the hollow tube 11 from being contracted and deformed. Since the aperture ratio of the reinforcing spacer 14 is set sufficiently large, the reduction of the amount of water vapor permeation due to the presence of the reinforcing spacer 14 is not a problem.

Moreover, the air flow F flowing through the hollow tubes 11 is promoted to be turbulent by the spiral guide 14c forming a part of the reinforcing spacer 14. Therefore, the generation of the boundary layer on the inner wall of the pipe is suppressed, and the humidification performance can be further improved.

The invention of the present application is not limited to the configuration of the above-described embodiment, and it goes without saying that the design can be appropriately changed without departing from the gist of the invention.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a humidifier according to an embodiment of the present invention.

FIG. 2 is a perspective view of a humidifier according to an embodiment of the present invention.

FIG. 3 is a perspective view showing the inside of a hollow tube in the humidifier according to the embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view showing a usage state of the humidifier according to the embodiment of the present invention.

[Explanation of symbols]

11 is a hollow tube, 12 is a water container, 14 is a reinforcing spacer, 1
4c is a spiral guide, 15 is a container, and 16 is a reinforcing spacer.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuo Imagawa 1 at 700 Ichitsuya, Settsu City, Osaka Prefecture Daikin Industry Co., Ltd. Yodogawa Works (72) Inventor Yasushi Ueda 1304 Kanaokacho, Sakai City, Osaka Daikin Industries Ltd. Company Sakai Seisakusho Kanaoka Factory (72) Inventor Hisakazu Asahina 1304 Kanaoka-cho, Sakai City, Osaka Prefecture Daikin Industries, Ltd. Sakai Works Kanaoka Factory (56) Reference JP-A-2-111377 (JP, A) JP Patent 2-208430 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A large number of hollow tubes (11), (11) ··· made of a porous material that is permeable to water vapor and impermeable to water and is made of a water container (12). ) In parallel with each other, and the hollow tubes (11), (11), ... A cylindrical cage type reinforcing spacer (14) having an outer diameter equal to the inner diameter of the pipe (11) and a large opening ratio is fitted and fixed.
In addition, the reinforcing spacer (14) promotes turbulence of the air flow.
A humidifier characterized by being provided with a spiral guide (14c) .