JP3100288B2 - humidifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifier used in an air conditioner, a wind tunnel or an air passage in an environmental test room.

[0002]

2. Description of the Related Art A humidifier is installed in an air passage of an air conditioner or an air passage of an air tunnel such as an environmental test room for the purpose of humidifying the ventilation air.

Among the humidifiers, a steam humidifier is shown in FIG.
As shown in FIG. 1, a pipe-shaped spray header 12 having a plurality of steam outlets 13 is provided in an open-top box-shaped holder 11 opened at the top, and the steam is supplied to the spray header 12 by supplying steam from a boiler. Humidification is performed by discharging steam from the outlet 13 into the ventilation air.

[0004]

Some of the steam blown into the air is recondensed to form water droplets. The distance from the time when the water droplets re-evaporate and are absorbed in the air is determined by the humidification and absorption. It is called distance. If there is an obstacle within the range of the humidification absorption distance, dew condensation occurs on the obstacle due to collision of water droplets and vapor condensation, leading to a decrease in humidification efficiency and water leakage. The humidification absorption distance is affected by the humidification amount and the humidification air condition, and also varies depending on the humidifier structure.

In the general steam humidifier shown in FIG. 5, the spray vapor loses the wind pressure of the ventilation air and cannot diffuse over a wide range, and flows in a layered manner from the vicinity of the steam outlet. As a result, the humidification absorption distance until it is absorbed into the ventilation air becomes longer, and the humidification efficiency decreases and the absorption into the ventilation air becomes insufficient, causing water leakage due to condensation of the supplied steam, or There is a problem that the installation space for installing the humidifier becomes large.

[0006] In order to shorten the humidification absorption distance, it is effective to diffuse and spray the blown steam over an area as large as possible. For this purpose, as shown in FIG. 6, the spray header 15 is branched and erected from the main header 14 through which the steam is passed, and the steam is sprayed from the outlet 16 of the spray header 15 into the air passage. . However, such a steam humidifier has a problem that the production cost is high.

The present invention has been proposed in order to solve the problems of the above-mentioned prior art, and has a simple structure and can be manufactured at a low cost. A humidifier that can diffuse and spray moisture uniformly can be provided.

[0008]

A humidifier according to the present invention is provided so as to intersect with a ventilation passage which is horizontally supported by a holder and further has a spout at an upper portion thereof, and a holder for the ventilation passage is provided in the holder. It has a structure in which a plurality of standing resistors are provided on the windward side.

[0009]

[Function] Since the back surface of the resistor has a negative pressure, the spray water from the header rises along the resistor, and the spray water that has risen is partially diffused into the air from the back surface of the resistor by the air flow.
In addition, the eddy current generated at the side edge of the resistor diffuses in the width direction of the resistor and is scattered throughout the ventilation path, thereby performing highly efficient humidification with a short humidification absorption distance.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing one embodiment of a steam humidifier according to the present invention.

In this figure, a horizontally long header holder 1 is formed in an open-top box shape with an upper opening, and in this holder 1, a spray header 2 having a plurality of ejection ports 3 formed in the upper part is installed. , The header holder 1 and the spray header 2 constitute a steam jetting source body. Also, the front plate 1a of the header holder 1
Is provided with a plurality of upstanding resistance plates 4.

The resistance plate 4 is formed by a chevron plate having a top side on the windward side, and has a diffusion surface 5 having a shape opened to the leeward side of the ventilation path as shown in a sectional view in FIG. .

In the steam humidifier configured as described above, when steam is supplied to the spray header 2 from one end thereof, the steam sprayed from the jet port 3 into the ventilation path in a dotted or linear manner is
It rises along the resistance plate 4 provided on the windward side of the holder 1 and is sprayed into the air from the back surface of the resistance plate 4.

Thus, the spray vapor can be diffused and sprayed over a wide area, so that the humidification absorption distance is short and humidification can be performed with high efficiency.

The shape of the resistance plate 4 is not limited to the chevron shape shown in the embodiment, but may be a flat plate. In order to reduce air resistance as much as possible, the pipe is divided in half as shown in FIG. It may have a shape or a lattice shape as shown in FIG.

Also, the present invention is not limited to a steam humidifier for spraying steam from a spray header, but also a device for spraying steam by heating water by providing a sheath heater in a steam jetting source main body, and a device for spraying water between electrodes. Spraying steam by heating with heat,
Alternatively, the present invention can be applied to a steam humidifier that sprays steam by heating water with infrared radiation heat.

[0017]

As described above, according to the present invention, a plurality of resistance plates are provided upright on the windward side of the humidifier main body, so that the steam sprayed from the steam outlet of the spray header is resistant. It rises along the plate, and is sprayed into the ventilation path from the entire surface of the resistance plate.

Therefore, it is possible to provide a low-cost steam humidifier that can diffuse and spray the sprayed vapor over a wide area, can shorten the humidification absorption distance, can humidify with high efficiency, and can reduce the cost.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a steam humidifier according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view showing another embodiment of the steam humidifier according to the present invention.

FIG. 4 is a perspective view showing still another embodiment of the steam humidifier according to the present invention.

FIG. 5 is a perspective view showing a conventional steam humidifier.

FIG. 6 is a perspective view showing another conventional steam humidifier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Header installation box 2 Spray header 3 Steam outlet 4 Resistance plate 5 Diffusion surface

Claims (1)

(57) [Claims] A spray header, which is horizontally supported by a holder and has a spout at an upper portion thereof, is provided so as to intersect a ventilation passage, and a plurality of standing resistors are provided in the holder so as to be on the windward side of the ventilation passage. Humidifier provided.