JPH085113A - Humidifier - Google Patents

Abstract

PURPOSE:To simplify a structure, to enable reduction of a manufacturing cost, to make a distance of humidification and absorption short and efficient for all that and, moreover, to make it possible to diffuse and spray moisture uniformly in an air flow. CONSTITUTION:A spray header 2 supported horizontally by a holder and having jet ports 3 in the upper part is so provided as to intersect an air passage, and a plurality of standing resistant bodies 4 are provided on the holder so that they are on the windward side of the air passage.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Humidifiers are installed in the ventilation passage of an air conditioner or the ventilation passage of a wind tunnel such as an environmental test room for the purpose of humidifying ventilation air.

Of the humidifiers, the steam humidifier is shown in FIG.
As shown in FIG. 3, a pipe-shaped spray header 12 having a plurality of steam outlets 13 is provided in an open-ended box-shaped holder 11 and the steam is supplied by supplying steam from a boiler to the spray header 12. Humidification is performed by discharging steam from the outlet 13 into the ventilation air.

[0004]

By the way, a part of the steam blown into the air is re-condensed into water droplets. The distance until the water droplets are re-evaporated and absorbed into the air is humidified and absorbed. 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 condensation of vapor, which causes a reduction in humidification efficiency and water leakage. The humidification absorption distance is affected by the humidification amount and humidified air conditions, and also changes depending on the structure of the humidifier.

In the general steam humidifier shown in FIG. 5, the sprayed steam loses the wind pressure of the ventilation air and cannot spread in a wide range, and flows in layers from the vicinity of the steam ejection port. As a result, the humidification absorption distance until it is absorbed into the ventilation air becomes long, and the humidification efficiency declines and 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 attaching the humidifier becomes large.

[0006] In order to shorten the humidification absorption distance, it is effective to diffuse and spray the blown-out vapor over as large an area 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 jet port 16 of the spray header 15 to the ventilation passage. . However, such a steam humidifier has a problem of high manufacturing cost.

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, yet has a short humidification absorption distance, is efficient, and has a high air flow rate. It is now possible to provide a humidifier that can diffuse and spray water evenly.

[0008]

A humidifier according to the present invention is provided so as to be horizontally supported by a holder and has a spray header having an ejection port at an upper part thereof so as to cross the ventilation passage, and the holder is provided with a ventilation passage. 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.
Further, due to the eddy current generated at the side edge portion of the resistor, it is also diffused in the lateral width direction of the resistor and scattered over the entire area of the ventilation passage, and highly efficient humidification with a short humidification absorption distance is performed.

[0010]

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

In this figure, a horizontally long header holder 1 is formed in a lidless box type having an upper opening, and a spray header 2 having a plurality of ejection ports 3 formed in the upper portion is installed in the holder 1. The header holder 1 and the spray header 2 constitute a steam ejection source body. Also, the front plate 1a of the header holder 1
A plurality of standing resistance plates 4 are provided in the.

The resistance plate 4 is composed of a mountain-shaped plate having a top side on the windward side, and has a diffusing surface 5 open to the leeward side of the ventilation passage as shown in the sectional view of FIG. .

In the steam humidifier configured as described above, when steam is supplied to the spray header 2 from one end side thereof, the steam sprayed from the jet port 3 into the ventilation passage in a dot shape or a linear shape,
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.

As a result, the spray vapor can be diffused and sprayed over a wide area, and the humidification absorption distance is short and highly efficient humidification is possible.

The shape of the resistance plate 4 is not limited to the mountain shape shown in the embodiment, but may be a flat plate, and the pipe is divided in half as shown in FIG. 3 in order to reduce air resistance as much as possible. It may have a shape or a lattice shape shown in FIG.

Further, according to the present invention, not only the steam humidifier for spraying steam from the spray header, but also a steam jet source main body equipped with a sheath heater to heat water to spray steam, and water between electrodes are separated by a joule. What is heated by heat and sprays steam,
Alternatively, it can be applied to a steam humidifier that heats water with radiant heat of infrared rays to spray steam.

[0017]

As described above, according to the present invention, since a plurality of resistance plates are provided upright on the windward side of the humidifier main body, the steam sprayed from the steam outlet of the spray header resists resistance. Ascends along the plate and spreads from the entire surface of the resistance plate into the ventilation passage.

Therefore, the spray vapor can be diffused and sprayed over a wide area, the humidification absorption distance is short, the humidification can be performed with high efficiency, and a low-cost steam humidifier can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view showing an 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]

 1 Header installation box 2 Spray header 3 Steam jet 4 Resistance plate 5 Diffusion surface

Claims (1)

[Claims] 1. A spray header, which is horizontally supported by a holder and has an ejection port at its upper portion, is provided so as to cross the ventilation passage, and a plurality of standing resistors are provided on the holder so as to be on the windward side of the ventilation passage. Humidifier provided.