JPS5828A - Steam humidifier - Google Patents

Abstract

PURPOSE:To reduce the influence on temperature control, to decrease noise and vibration and to obtain clean hot air from a steam humidifier, by contacting a water holding body to a hot body which is heated by steam. CONSTITUTION:A heating body 5, in which a header 1, provided with a number of steam blowing nozzles 4, is provided, and a glass-wool (a water holding body) 10 to cover the heating body 5 are provided to the inside of a casing 11. A steam generator 7 is connected to the above-mentioned header 1, pure water from a pure water maker 19 is fed into the bottom of a casing 11 by the intermediary of a water supply tank 15, and the upper surface of a casing 11 is covered with a punched metal 12.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to steam humidifiers, and more particularly to steam humidifiers that use steam generated by a steam generator.

As shown in FIG. 1, a conventional steam humidifier humidifies steam 2 supplied to a header 1 by directly releasing it into the air through a nozzle 4 while adjusting the flow rate with a control valve 3. It is.

However, this method has the following drawbacks.

In other words, a steam boiler is generally used as a steam supply source, but in this case, the supplied steam contains impurities such as cleaning agents, and if the supplied steam is directly released into the air, it will not be clean. Humidified air cannot be obtained. Furthermore, when heated steam supplied from a steam generator (boiler) is released directly into the air through the nozzle 4, a sensible heat change occurs in the conditioned air.
In conclusion, to provide a steam humidifier which cannot control temperature with high accuracy, obtains clean humidified air from the nozzle, has less influence on temperature control, and produces less shooting and scraping noise due to discharged steam. It is in.

In order to achieve the above object, the present invention constructs a heating body that uses spring air supplied from a steam generator as a heat source instead of directly releasing it into the air, and the heating body is equipped with a heating element such as a glass cooler. A water holding body is brought into contact with the water holding body, and water in the water holding body is evaporated to obtain clean saturated steam at a low temperature.

That is, the present invention provides a steam humidifier that humidifies air by supplying water vapor from a steam generator, in which a heating body that uses the supplied air as a heat source is provided, a water holding body is brought into contact with the heating body, and the heating body is heated. It is characterized by supplying water vapor generated by

Hereinafter, the present invention will be specifically explained with reference to the drawings.

FIG. 1 is a sectional view of a steam humidifier showing one embodiment of the present invention. This device mainly consists of a cylindrical heating element 5 having a header 1 having a large number of steam blowing nozzles 4 therein, and a glass wool (water retaining element) 10 provided to cover the heating element 5. ing. A steam generator 7 is connected to the header 1 via a control valve 3 and a steam pipe 6, and the steam flow rate is adjusted by the control valve 3 and then supplied to the heating element 5. A drain pipe 8 and a drain trap 9 are connected to the lower part of the shredded heating element 5 for draining condensed water. The heating body 5 is installed in the casing 11 with glass wool 10, which is a water retaining body, wrapped around the surface of the heating body 5. A punching metal 12 having a steam outlet is attached to the upper part of the casing 11. A replenishment water pipe 13 for replenishing water to the water holding body is provided at the bottom of the trench casing 11, and this is connected to a replenishment water tank 15 via a connecting pipe 14. The supplementary water tank 15 is supplied with pure water produced by the pure water producing device 19 .

In addition, 17 is makeup water.

In the apparatus having the above configuration, the header l is
The steam supplied to the heating element 5 is blown into the heating element 5, and on the surface of the heating element 5, the water absorbed by the glass wool 10 is heated and vaporized, and this steam is further released to the outside of the water holding element (glass wool). Before heating, the glass wool is cooled by moisture in the water holding body at a location away from the surface of the heating element, becomes low-temperature saturated steam, and is released from the opening of the ξ-nching 12 where the surface of the glass wool is exposed.

According to the above embodiment, since pure water is evaporated from the glass wool, clean steam is obtained and no scale or the like remains in the glass wool. In addition, since the supply water pipe is attached to the bottom of the case song and only the minimum amount of water is supplied due to the water absorbency of the glass tube, the time required for vaporization is shortened, resulting in a highly responsive humidifying device.

Next, FIG. 3 is a sectional view of a humidifier showing another embodiment of the present invention, in which a steam coil 16 is used instead of the heating element 5, and in the embodiment directly inside the coil, The structure of the heating element is simplified and costs are reduced.

Furthermore, FIG. 4 shows another embodiment of the present invention, in which the heating body 5 is configured to be in contact with the outside of the water holding body 18,
The heating body 50 is covered with a heat insulating material 20. According to this embodiment, the thermal efficiency of the heating element 5 is improved, and a humidifying device with higher responsiveness can be achieved.

In the above embodiment, glass wool was used as the material for the water retaining body, but other materials having water absorbing and heat insulating properties may be used, and nonflammable materials are sometimes preferred.

As described above, according to the present invention, by heating and evaporating the water in the water holding body, clean humidified air is obtained, and the influence on temperature control is small, and imaging using discharged steam and steam humidification with less noise are performed. be able to.

The steam humidifier of the present invention is suitably used in places such as semiconductor manufacturing factories that require clean air and precise air conditioning.

[Brief explanation of the drawing]

Fig. 1 is a partial cross-sectional view showing a conventional steam humidifier, Fig. 2 is a system diagram of a steam humidifier showing an embodiment of the present invention, and Fig. 3 is a cross-sectional view showing another embodiment of the present invention. 4 are cutaway perspective views showing still another embodiment of the present invention. 1...Header, 4...Nozzle, 5...
- Heating body, 7... Steam generator, 10.
...Water holding body (glass cool), 12...Punching, 19...Pure water device. Figure 1 Figure 2 Figure 7

Claims (1)

[Claims] tll In a steam humidifier that humidifies air by supplying water vapor from a steam generator, a heating body that uses the supplied steam as a heat source is provided, a water holding body is brought into contact with the heating body, and the water vapor generated by the heating is supplied. A steam humidifier characterized by: