JPS587222Y2 - ultrasonic humidifier - Google Patents

Description

[Detailed explanation of the invention] Ultrasonic humidifiers have the characteristic that the mist particles they generate are very fine, but depending on the condition of the airflow that sends out the mist, the fine mist that is generated can be effectively sent out. Not only will it condense into large water droplets and return to the aquarium, reducing its ability, but to compensate for this, measures such as enlarging the cross-sectional area of the nozzle that blows out the mist will reduce the amount of large water particles. The benefits of the ultrasonic humidifier will be lost due to the scattering.

This situation can be explained using a diagram based on the conventional example.
In the figure, when the transducer housed in case 1 of the ultrasonic transducer is excited by a high-frequency oscillator (not shown in the figure), ultrasonic vibrations are sent out toward the water surface, causing the water surface to form a mountain shape as shown in 2. Ultrasonic energy is concentrated on the top 3 of the swell, and the water is atomized.

The wind blown out from the blower 6 travels along the water surface in the direction of the arrow, flows into the pipe 4 that sends out the mist, rises carrying the above-mentioned fog, and is blown out from the nozzle 7. Due to its dynamic pressure, when flowing into the pipe 4 that sends out mist, it concentrates on the left side in the figure, that is, the side far away from the blower 6, while on the other hand, it concentrates on the right side in the figure, that is, the side far away from the blower 6.
On the side near the inlet, negative pressure is generated and air flows backwards, creating a vortex as shown by the arrow in the figure.

In this part, the generated mist is caught up in this vortex, collides with each other and aggregates, or collides with the water surface and returns into the water container 9.

As mentioned above, since the wind speed is high on the side far away from the blower 6, even large water droplets are blown up, passed through the pipe 4, are blown out from the nozzle 7, and fall to the surrounding area.

13 shows a situation where large water particles separate and fall.

If large particles are removed by bending the passage of the nozzle 7 or reducing the cross-sectional area, the amount of mist will be reduced by the amount lost by the vortex flow, and if the amount of mist is not reduced, large particles will be removed. particles.

The present invention provides an ultrasonic humidifier that prevents the loss of high-quality mist and does not contain large particles by preventing the generation of air eddies and giving a uniform flow velocity to the cross section of the pipe 4 that sends out the mist. The purpose is to

If one example is explained with reference to FIG. 2, 1°2.3
, 4, 6, 7 and 9 are exactly the same as those in FIG. 1, and 5 is a plate provided with a plurality of holes 8 to restrict the flow of air.

FIG. 3 shows an example of this as seen from above or below.

By providing such a plate 5 at the lower end of the pipe 4 that sends out the mist, the influence of the dynamic pressure of the wind blown out from the blower 6 can be reduced, and instead, the influence of the dynamic pressure of the wind blown out from the blower 6 can be reduced, and the water surface 10 in the water container 9 and the water container 9 can be A static pressure is generated in the space 12 formed by the cover plate 11, and this static pressure causes an air flow with a uniform velocity distribution upward from the plurality of holes 8 or notches 8' provided in the aperture plate 5. It is something that generates.

Since the mountain of water 2 generated by ultrasonic vibration must not hit the aperture plate 5, the ultrasonic vibrator must be concentric with any of the holes 8, and the diameter of the hole 8 concentric with the ultrasonic vibrator is as follows. Although it is necessary that the diameter is large enough so that the periphery of the water mountain 2 does not come into contact with the edge of the hole 8, it is not necessary that all the holes 8 have the same diameter.

Also, it goes without saying that there may be one or more ultrasonic vibrators for each of the four pipes that send out the mist.

Further, the aperture plate 5 having the hole 8 may be integrated with the lid plate 11 of the water container 9 as shown in FIG. You may let them.

As is clear from the above description, the ultrasonic humidifier according to the present invention, in which the aperture plate 5 with a plurality of holes 8 or notches 8' is disposed at the lower end of the pipe 4 that sends out mist, has a mist generating section. Since the flow velocity distribution is uniform in the cross section at any position of the pipe 4 that sends out the mist without generating vortices in the vicinity, the fine mist of generated particles can be sent out effectively without loss, so that large droplets of water can be effectively sent out. Even if a nozzle shape that removes particles is provided, efficient humidification capacity can be obtained for a certain vibrator input.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of a conventional ultrasonic humidifier, Fig. 2 is a longitudinal sectional view showing an embodiment of the present invention, Fig. 3 is a plan view of the aperture plate shown in Fig. 2, and Fig. 4 is an independent FIG. 7 is a cross-sectional view of a main part showing another embodiment in which a single diaphragm plate is interposed between a lid plate of an ice container and a lower end of a pipe for sending out mist. 1...Ultrasonic transducer case, 2...Mountain of water rising due to ultrasonic vibration, 4...Pipe sending out mist, 5...・Aperture plate, 6... Blower, 7... Nozzle, 8, 8'... Hole or notch provided in aperture plate 5, 9... Ice container, 1
1... Lid plate.

Claims (1)

[Scope of utility model registration request] A ξ pipe 4 is installed at the lower end of the pipe 4 that sends out the mist generated from the top 3 of the water 2 that rises up in a mountain shape due to the vibration of the ultrasonic oscillator housed in the case 1 of the ultrasonic oscillator and placed underwater. A diaphragm plate 5 provided with a plurality of holes 8 or notches 8' is arranged in such a way that the top 3 of said water 2 projects into the interior of the pipe 4 through one of the holes 8, and the air blown by the blower is Ultrasonic humidifier, characterized in that the flow is guided into the pipe 4 through the hole 8 or cutout 8'.