JPS5835975Y2 - Water droplet scattering prevention device in air coolers - Google Patents

Description

[Detailed description of the invention] A conventional air cooler is shown in FIG.
The pipe 2 is fixed by the upper frame 3 and the lower frame 4.

A drainage hole 5 is provided in the center of the lower frame 4.

Further, a drainage tray 6 is attached to the lower frame 4, and a drainage pipe 7 is provided in the drainage tray 6.

Cold water or a refrigerant is passed through the tube 2, while air is passed between the plate fins to effect heat exchange between them.

At this time, the air is cooled to below the dew point temperature, and the water vapor in the air adheres to the surface of the plate fin, becomes water droplets, falls to the bottom, passes through the drain tray 6, and is discharged to the outside from the drain pipe 7. When the wind speed and air volume (=cooling front 4 volume) exceeds approximately 1 m/s, some water droplets form as shown in the figure.
It is carried by air currents and scattered downstream.

Therefore, if a large water receptacle is installed downstream of the cooler, there are problems such as making the device larger and making maintenance, inspection, and parts replacement difficult.

Furthermore, as shown in FIG. 2, it has been proposed to provide a drip-proof filter 8 all over the air passage on the downstream side of the cooler, but this has the drawback of increasing ventilation resistance.

The present invention has been proposed in view of the above, and as shown in an embodiment of the invention in FIG. The air filter 9 of No. 3 is provided so as to be inclined so that the distance from the cooler increases toward the top.

Incidentally, members denoted by the same reference numerals as those in FIGS. 1 and 2 are the same as those in the prior art.

This means that when a drop of water that has evenly adhered to the surface of the plate fin 1 flows down through the narrow gap of the plate fin 1 due to its own weight, the lower part of the plate fin 1 is lower than the upper part of the plate fin 1. Since the number of water droplets is large,
Although more water droplets are blown away by the air flow at the bottom, the air filter 9 with a height of 1/4 to 1/3 of the height of the cooler is installed at the lower part of the downstream side of the cooler, so cooling is achieved. It can reduce the air flow velocity at the bottom of the container.

The air filter 9 is inclined so that the distance from the cooler increases at the upper end, so that the wind speed gradually decreases toward the lower part.

The forces of gravity and airflow force act on the water droplets, but the direction of the resultant force is directed toward the air filter 9, so the water droplets are almost completely captured by the air filter 9 and are no longer scattered.

Thus, according to the present invention, the front wind speed is about 3 m/s and water droplets are not scattered, so the entire cooling system can be made smaller, or a service space can be provided downstream immediately adjacent to the cooler, and parts can be installed more easily. There are effects such as being able to.

Further, the ventilation resistance due to the air filter is extremely small and can be ignored.

[Brief explanation of the drawing]

FIG. 1 and FIG. 2 are cross-sectional views showing a conventional air cooler;
FIG. 3 is a sectional view showing one embodiment of the present invention. Cooler plate fins...1, tubes...
・2.Air filter...! 9゜

Claims (1)

[Scope of utility model registration request] At the lower part of the downstream side of the cooler through which the air to be cooled flows,
Water droplets in an air cooler characterized in that an air filter whose height is 1/4 to 1/3 of the height of the cooler is provided at an angle so that the distance from the cooler increases as it goes to the top. Prevention device.