JPS587221Y2 - Steam humidifier for air conditioner - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a steam humidifier for an air conditioner.

Conventional humidifiers are made by wrapping asbestos cloth around a humidifying pipe with a steam outlet in the surrounding wall, and can only be used for low-pressure steam; if used for high-pressure steam,
The pressure created holes in the asbestos fabric in areas directly exposed to steam from the steam vents, rendering it unusable.

The present invention provides an improved humidifier that eliminates the above-mentioned drawbacks and can be used satisfactorily even when high-pressure steam is supplied.

An embodiment of the present invention will be described in detail below based on the drawings.

In the figure, a steam distribution tube 2 made of a copper tube is provided with a gap maintained inside a known low-pressure humidifying pipe 1 having a plurality of steam ejection holes 11 in its peripheral wall.

The tube 2 is supported concentrically within the humidifying pipe 1 by annular spacers 3 provided at a plurality of locations at intervals along its length, and its end is closed by a plug 2a.

Further, on the inlet side of the steam distribution tube 2, a gap between it and the humidifying pipe 1 is sealed with an elastic bushing 4.

A plurality of steam jetting nozzles 21 are bored in the peripheral wall of the steam distribution tube 2 at positions shifted from the steam jetting holes 11 of the humidifying pipe 1 .

The steam jet nozzle 21 is cut out from the inside of the pipe 2 to the outside to have a nozzle hole 21a opened.
It is integrally formed by a front piece 21 b facing the nozzle hole 21 b and a side piece 21 C standing upright on one side of the nozzle hole. One is provided.

Asbestos cloth or asbestos cloth 5 is tightly wrapped around the outer periphery of the humidifying pipe 1, the end thereof is sealed with a cap 6, and the inlet side is connected to a steam supply pipe (not shown) through a socket 7.

Note that the steam nozzle 21 may be a simple hole.

Next, the operating state of the humidifier described above will be described.

High-pressure steam sent from a steam pipe (not shown) enters the steam distribution tube 2, is ejected from a steam nozzle 21 opened on the tube's peripheral wall, and enters the humidifying pipe 1, but the nozzle 21 has a narrow flow path. By exiting the humidifying pipe 1 and entering the wide humidifying pipe 1, the pressure is greatly reduced.

That is, the steam passes through the nozzle hole 21a, collides with the front piece 21b, changes direction, and ejects from there along the outer surface of the circumferential wall of the tube 2, thereby significantly reducing pressure and generating less noise. .

In this way, the steam ejected through the ejection hole 11 is almost evenly distributed over the entire area of the asbestos cloth, etc. wrapped around the outer circumference of the humidifying pipe 1, and if condensed water is inside the humidifying pipe 1, the asbestos cloth, etc. becomes an eliminator. fulfill the role of

According to experiments, the humidifier of the present invention has a weight of 3.1 kg/Cm2
It was able to withstand high-pressure steam.

By the way, the maximum withstand pressure of conventional humidifiers is 0.7 kg/
It was cm2.

As described above, the present invention has a plurality of steam ejection holes 11 on the peripheral wall.
A steam distribution tube, which has an end closed with a predetermined gap maintained inside a humidifying pipe 1 whose outer periphery is wrapped with asbestos cloth 5 or the like, and whose gap with the humidifying pipe 1 is sealed on the inlet side. 2 is provided, and the tube 2 has a double structure in which a steam jet nozzle 21 is provided, so that it can sufficiently withstand the use of high-pressure steam.

That is, the high-pressure steam in the tube 2 is ejected from the nozzle 21 into the humidifying pipe 1 and is significantly reduced in pressure, and is diffused throughout the humidifying pipe 1 along the inner surface thereof.

Therefore, the gap between the humidifying pipe 1 and the steam distribution tube 2 becomes a so-called buffer zone for high-pressure steam, creating a substantially uniform low-pressure layer due to static pressure, which acts on asbestos, etc. through the steam outlet 11 of the pipe 1. The steam pressure becomes smaller,
Durability will be improved.

Moreover, since the asbestos cloth, etc. is wrapped closely around the outer periphery of the heating pipe without any gaps, it is sufficiently reinforced, and the force acting on the asbestos cloth, etc. through the humidifying pipe's nozzle is absorbed between the humidifying pipe and the distribution tube. There is almost only static pressure of the steam existing in the gap, and no impact force is exerted due to the dynamic pressure caused by the steam jet flow.

Therefore, it is advantageous in terms of strength and increases the service life of asbestos cloth, etc.

Moreover, since the position of the nozzle 21 of the steam distribution tube is shifted with respect to the steam jet hole 11 of the humidifying pipe, the high-speed flow of high-pressure steam jetted from the nozzle 21 goes straight to the steam jet hole 11, and the asbestos It does not collide with cloth or the like and apply impact force to it.

Furthermore, since the steam diffuses throughout the humidifying pipe 1, asbestos and the like are evaporated uniformly throughout, resulting in a high humidifying effect.

In addition, since the steam distribution tube 2 is fixedly supported at multiple locations in the lengthwise direction within the humidifying pipe 1, the vibration of the steam distribution tube 2 and the generation of noise caused by the vibration when high-pressure steam is jetted from the steam jet nozzle are prevented. suppressed.

[Brief explanation of drawings]

The figure is a longitudinal sectional view showing an embodiment of the present invention. 1... Humidification pipe, 2... Steam distribution tube, 3... Clip spacer, 4...
...Socket, 5...Asbestos cloth, 6...
...Cap, 7...Socket, 11...
...Steam blowout hole, 21...Steam blowout nozzle.

Claims (1)

[Scope of utility model registration request] A humidifying pipe that has multiple steam ejection holes on its peripheral wall and is tightly wrapped with asbestos cloth, etc., with a steam distribution tube that is closed at the end and runs along its length with a gap maintained inside the pipe. It is supported at a plurality of spaced locations, and the gap between the tube and the humidifying pipe is sealed on the inlet side of the tube,
An air conditioner characterized in that an end of the heating pipe on the outlet side of the tube is closed, and a steam jetting nozzle is provided in the tube at a position shifted from a steam jetting hole of the heating pipe. steam humidifier.