JPH07194964A - Method for bringing liquid into contact with gas - Google Patents

Abstract

PURPOSE:To obtain such effects as vaporization and concn., cooling, aeration and dedusting by bringing a liq. into efficient contact with a gas. CONSTITUTION:A method is constituted by using a fan 4 generating a circular air flow, a rotating disc with sawteeth-like projections on its peripheral part for preparing fine and uniform droplets or liq. lines and a power part 2 for rotating them with a high speed. When a liq. is fed from the central part of this disc 3, the liq. is spread into a membrane-like state on the disc by a centrifugal force and it becomes eventually fine and uniform droplets or liq. lines and flys about into the surrounding high speed circular air flow from the projections on the peripheral edge. As the result, retention time in the gas becomes longer and bringing the liq. into contact with the gas is efficiently and rapidly performed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid for rapidly evaporating a liquid, solidifying a melt into particles or a linear form, and taking a gas into a liquid. The present invention relates to a method of contacting with gas, and is applied to wastewater treatment, humidification equipment, cooling equipment, artificial snow making equipment, backing equipment, granulation / line making of low temperature molten substances, dust removal in the air, etc.

2. Description of the Related Art Conventionally, in order to evaporate a liquid, for example, a method such as heating or depressurization has been mainly used. To increase the surface area of the liquid that comes into contact with air even at room temperature and atmospheric pressure, the liquid is formed into a granular or film form. In addition, there were many things to improve ventilation.
Further, in the case of granulating the liquid, a method of ejecting the liquid from a nozzle is generally used, it is difficult to obtain uniform fine particles, and special consideration is also given to increasing the contact time with air. There were few that did. Further, in order to make the melt into fine particles, there are many methods in which the solid is once solidified, then made into small pieces, and further shaped.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention, as a method for efficiently contacting a liquid and a gas, makes the surface area of the liquid extremely large, and always moves the gas in contact with the liquid to ensure efficient contact. It is what you are trying to do.

Means for Solving the Problems In the present invention, a circular saw-shaped disk having a jagged edge is rotated at high speed, and by supplying a liquid from the center thereof, extremely fine droplets and liquid lines are formed, By exposing it to the swirling air flow, it is possible to improve the contact between the liquid and the gas and efficiently realize the effects of evaporation, cooling, coagulation, dust removal and the like.
The present invention will be described with reference to the drawings. FIG. 1 shows an embodiment in which the present invention is applied to an air radiation device for cooling water of a heat generating machine. In the figure, a container 1, a disk 3 having a circular saw-like projection on its peripheral portion, which rotates at a high speed by a shaft of a rotating device 2, and a fan 4 which generates a swirling airflow are installed. Now, when the water to be cooled is poured from the supply port 5 into the center of the disk 3, the water spreads like a film on the disk due to the centrifugal force, and becomes thinner toward the periphery, and finally it becomes a saw blade-shaped protrusion. Fine water droplets are scattered from the tip. The size of the water droplets is uniform, and the larger the disk diameter and the faster the rotation, the smaller the water droplets. On the other hand, the unsaturated air sucked from the air intake port 6 becomes a high-speed swirling airflow by the fan 4, which prolongs the residence time of water droplets around the disk in the air and constantly makes the water droplets unsaturated. As a result, the evaporation of water droplets from the surface proceeds efficiently and rapidly. The vaporized water vapor is discharged to the outside from the discharge port 7 together with the air, and the water droplets that have been deprived of the heat of vaporization and cooled are collected at the bottom of the container and taken out from the discharge port 8.

Operation As is clear from the above description, according to the method of the present invention, the size of droplets / liquid lines can be made fine and uniform. Even if the liquid has the same volume, the surface area can be increased several thousand to several ten thousand times by forming fine droplets.
Also, since the liquid droplets / liquid lines are exposed to swirling airflow, swirling rising airflow, etc., contact with gas is actively maintained and rapid evaporation,
It is possible to expect actions such as cooling.

Embodiments The above is one example in which the present invention is applied to an aerial radiator of cooling water of a heat-generating machine, but various other uses as a direct efficient contact method between liquid and gas are conceivable.
That is, depending on the combination of the size of the disk, the shape of the sawtooth portion, the number of revolutions, the type of liquid, the supply amount, the temperature, the type of gas, the supply amount, the temperature, etc., the evaporative concentration treatment of wastewater, the distilled water production device, the spot, etc. ． Industrial equipment such as coolers, backing devices such as aquaculture ponds and cages, artificial snow machines, humidifiers, dust removers in the air, wire / pellet manufacturing devices for plastics / lead, microcapsule manufacturing devices, etc. Applications in various fields can be expected.

EFFECTS OF THE INVENTION As described above, the method of direct contact between liquid and gas according to the method of the present invention has a simple structure and is efficient. Therefore, the size of the device itself is smaller than that of the conventional device, and the cost is low. It is possible to

[Brief description of drawings]

FIG. 1 shows an embodiment in which the present invention is applied to an air radiation device for cooling water of a heat generating machine. 1, is a container, 2 is a rotating device, 3 is a disk having circular saw-like protrusions on its peripheral edge,
Reference numeral 4 is a fan for generating a swirling air current, 5 is a supply port of water to be cooled, 6 is an air intake port, 7 is an air discharge port, and 8 is a cooled water discharge port.

Claims (1)

[Claims] By rotating a disk with a serrated protrusion on the periphery at high speed in the air stream and supplying liquid from the vicinity of the center of the disk, droplets or liquid lines ejected from the periphery of the disk are turned into an air stream. A method for contacting a liquid and a gas, which is characterized by direct exposure.