JPH02230041A - Humidifying device - Google Patents

Abstract

PURPOSE:To enable execution of humidifying through instantaneous gasification of water and to permit easy control of regulation of a humidifying amount by a method wherein water atomized by a sprayer is blown against the inner wall surface of a gasification chamber, the temperature of which is maintained at a value higher than the vaporizing temperature of water, together with blast. CONSTITUTION:A rotary shaft 8 of a motor 7 to which a centrifugal type impeller 6 of a blower 4 is mounted is extended on a central line in a gasification chamber 2, and a centrifugal sprayer having a blade 9 is mounted on a rotary shaft 8. Water pumped up with the aid of an electromagnetic pump 13 and fed through water feed pipe 14 to a guide shaft 11 of the gasification chamber 2 is moved on the guide shaft 11 under rotation to the large end side and flows to a disc 10. Water is moved in a filmform state along the disc 10 to the outer periphery thereof through a centrifugal action and produces particles, which are radially flied from the outer peripheral end of the disc 10. The particles are collided with an inner wall surface 1 heated to 48 deg.C and immediately gasified and contained in the air flow of a blower 4, and discharged as humidified air through a discharge port 15.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a humidifier equipped with a vaporizing chamber.

[Prior art] Ultrasonic humidifiers have traditionally been used. There are vaporization type, heater type and centrifugal type. In the ultrasonic method, an electrostrictive or magnetostrictive vibrator is placed in water, and the waves collide with each other to emit water particles. The vaporization method humidifies by the vaporization effect caused by the height difference between the vapor pressure of water and the vapor pressure of the surrounding air. The heater type heats water with a heater and gives latent heat of evaporation to evaporate the water. Furthermore, the centrifugal type uses centrifugal force to collide water with comb-shaped walls to atomize it.

[Problems to be Solved by the Invention] In the conventional humidifying device described above, the ultrasonic type tends to cause limescale to adhere to the vibrator, leading to a decrease in the amount of humidification, and as the amount of humidification increases, large particles Things can fly out and wet the area around you.

Also, the vaporization type requires a large amount of air, and the amount of vaporization is proportional to the difference between the vapor pressure of water and the vapor pressure of air, so the amount of air vaporized varies greatly depending on the temperature of the air being taken in. The heater type requires heating the entire water in the container, and it is almost impossible to control the increase or decrease of the amount of humidification due to the large time constant. Furthermore, in the centrifugal type, the particle diameter is 50 to 100μ.
Items that are large in size (m) and do not dissolve in the air can fall and wet floors, etc.

This invention was made in order to solve such conventional problems, and aims to provide a humidifying device that can perform humidification by instantaneous vaporization of water and can easily control increase and decrease of the amount of humidification. .

[Means for Solving the Problems] A humidifying device according to the present invention blows air onto the inner wall surface of a vaporization chamber maintained at a temperature higher than the evaporation temperature of water, and also blows water using a centrifugal atomizer rotated by the motor of the blower. The system is designed to atomize the air and blow it away, vaporize it on the inner wall of the vaporization chamber, and humidify it by incorporating it into the airflow. [Function] In this invention, the water that has formed into fine particles on the inner wall of the vaporization chamber undergoes film boiling and instantaneously becomes vaporized, which is then contained in the air flow produced by the blower and released as humidified air, resulting in vaporization. The amount of humidification can be controlled by increasing or decreasing the amount of water supplied to the room.

[Example] Figures 1 and 2 both show an example of the present invention. The humidifying device shown in this example blows atomized water onto the inner wall surface 1 maintained at a temperature approximately 50°C higher than the evaporation temperature of water (approximately 148°C), and causes the water to film boil on the inner wall surface 1. It is then vaporized and released along with the air flow.

The inner wall surface 1 is configured as the inner surface of the front and rear open vaporization chambers 2, and is maintained at a temperature approximately 50° C. higher than the evaporation temperature of water by a sheathed heater 3 integrated by brazing.

An air flow is introduced into this vaporization chamber 2 from the rear open side by a blower 4. The blower 4 is housed in an outer shell 5 together with the vaporizing chamber 2, and the rotating shaft 8 of the motor 7 to which the centrifugal impeller 6 of the blower 4 is attached extends on the center line inside the vaporizing chamber 2. A centrifugal atomizer that rotates within the vaporization chamber 2 is attached to this rotating shaft 8. The centrifugal atomizer has a plurality of cut and raised blades 9 near the outer periphery, and a rotating shaft 8.
A disk 10 is fixed to the end of the disk 10, the large diameter end is placed on the disk 10, and the small diameter end is the blower 4lf! ! It consists of a conical guide shaft 11 that is fixed to the rotating shaft 8 toward the direction I, and the water supplied to the guide shaft 11 is atomized and blown off against the inner wall surface 1 of the vaporization chamber 2 by centrifugal force.

A water tank 12 equipped with a water level gauge is attached to the bottom side of the device outer shell 5, and a water supply member is provided in this water tank 12.The water supply member consists of an electromagnetic bomb 13 and a water pipe 14. The water pumped up in step 13 from the water tank 12 is supplied onto the guide shaft 11 inside the vaporization chamber 2 through the water pipe 14. The electromagnetic pump 13 is of a plunger type in which a plunger is moved by a magnetic force generated by a coil to forcefully pump water, and the amount of water supplied is variable depending on the frequency. The open front side of the vaporization chamber 2 communicates with the air outlet 15 on the front side of the device shell 5, and the suction side of the blower 4 faces the suction port 16 on the back side of the device shell 5.

In the humidifying device described above, water pumped out by the electromagnetic pump 13 and supplied from the water pipe 14 onto the guide shaft 11 of the vaporization chamber 2 moves on the rotating guide shaft 11 toward the large diameter end,
This leads to the disk 10.

Due to the action of centrifugal force, the water that forms a thin film on the surface of the disk 10 and reaches the outer periphery becomes fine particles with a particle size of several tens to hundreds of micrometers from the outer edge of the disk 10 and scatters in the radial direction and reaches the inner wall surface 1. collide with The water particles that collided with the inner wall surface 1 receive heat from the inner wall surface 1, undergo film boiling at the part that contacts the inner wall surface 1, and immediately vaporize, and are contained in the air flow of the blast @ 4 flowing through the vaporization chamber 2. It is blown out from the air outlet 15 as humidified air. The amount of evaporation per unit time is proportional to the difference between the saturated water vapor pressure of the temperature of the particles and the water vapor pressure of the surrounding air. In this humidifier, water is vaporized by film boiling on the inner wall surface 1, and the latent heat of vaporization is small, and there is almost no time for water to remain on the inner wall surface 1, so that lucium chloride, etc. contained in the water is precipitated. There is no limescale build-up, low power consumption, and maintenance pipes are easy to bury. In particular, by controlling the amount of water supplied by the electromagnetic bomb 13, the amount of humidification can be instantly controlled, and by making the flow rate of the air flow by the blower 4 variable, the amount and temperature of the humidified air can also be made variable. There are characteristics that can be used.

[Effects of the Invention] As is clear from the above description of the embodiments, the humidifying device of the present invention causes the water that has been atomized on the inner wall surface of the vaporizing chamber to film boil and instantly vaporizes, thereby causing the water to flow into the airflow produced by the blower. Since it is contained and released, the amount of humidification can be controlled by increasing or decreasing the amount of water supplied to the vaporization chamber. Therefore, water droplets do not wet the floor or the like, and excessive humidification does not occur, and the humidifier starts humidifying quickly, making it possible to achieve highly comfortable humidification.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a humidifier 1 as an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line ■--■ in FIG. In the figure, 1 is the inner wall surface, 2 is the vaporization chamber, 3 is the sheath heater, 4 is the blower, 7 is the motor, 8 is the rotating shaft, 10 is the disc, 11 is the guide shaft, 12 is the water tank, and 13 is the electromagnetic bomb. ,
14 is a water pipe. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Masu Oiwa A (and 2 others)

Claims (1)

[Claims] A cylindrical vaporization chamber with open ends that maintains its inner wall surface at a temperature higher than the evaporation temperature of water, a blower that forms an air flow in this vaporization chamber from one open side to the other open side, and a motor for this blower. A centrifugal atomizer that is attached to a rotating shaft in the vaporizer chamber and rotates within the vaporization chamber to blow water onto the inner wall surface of the vaporization chamber, and the amount of water supplied from the water tank to the centrifugal atomizer can be adjusted. A humidifier comprising a water supply member.