JPS5825939B2 - floodlight - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air conditioner, and more particularly to a water evaporation type air cooling device that lowers the indoor intake air temperature by exchanging humid cold air with air taken indoors using sensible heat.

Conventionally, air conditioners using water evaporation type air cooling devices spray water on the heat exchanger to cool it, but when spraying this water, the ice particles are fine and the density of the ice particles is uniformly distributed. The performance of the air conditioner is affected by the demand that the air conditioner be clean and quiet, etc.

The present invention has been made to meet the above-mentioned needs, and includes fixing a water sprinkler to the rotating shaft of an outdoor blower, supplying water to the sprinkler from a water supply mechanism, and spraying water in a centrifugal direction using the centrifugal force of the water sprinkler. This provides an air conditioner equipped with a water evaporation type air cooling device that has fine ice particles with uniform density and quiet water spraying noise.

FIG. 1 is a longitudinal cross-sectional side view showing an embodiment of an air conditioner according to the present invention. Reference numeral 9 denotes a casing, and a heat exchanger 10 is provided in the center of the casing.

A water sprinkler device 1 of the present invention, which will be described later, is placed on the upper part of this heat exchanger 10.
1 is provided.

As shown in FIG. 2, the heat exchanger 10 is constructed by stacking cooling element plates 13 and 13, each consisting of two sets of thin synthetic resin plates connected by a number of parallel partition plates 12, with spacing pieces 14 interposed at both ends of the cooling element plates 13 and 13. The cooling element plates 13 and 13 are arranged so that the water sprayed vertically from top to bottom flows down through the gaps between the cooling element plates 13 and 13, and the cooling outside air flows from the bottom to the top. It is meant to pass.

Further, the gap between the partition plates 12, 12 of each cooling element plate 13 is formed so that room air passes laterally from right to left in the drawing.

That is, in FIG. 1, by driving the electric blower 15, outdoor air is sucked in from the outdoor air suction port 16, passes vertically through the heat exchanger 10 from below to above as shown by the white arrow, and is then discharged outdoors. It is blown out from the air outlet 17 to the outside.

At this time, the sprinkler device 11 is rotated by the drive of the electric motor 18, and the ice particles are scattered from above the heat exchanger.

The ice particles flow down from the top through the gap between the cooling elements 13, 13 and wet the cooling elements.

The cooling element 13 cools the cooling element plate by evaporating due to the water temperature and the air blown up from below and removing latent heat of evaporation.

The evaporated water vapor mixes with the outdoor air and is released outside, so it is not released into the room and does not increase the indoor humidity.

On the other hand, by driving the electric blower 19, indoor air is sucked in from the indoor air suction port 20, passes laterally between the partition plates 12 and 12 of the cooling element 13 of the heat exchanger 10, and is cooled by the cooling element. Air is blown into the room from the air outlet 21 as shown by the diagonal arrow, cooling the room.

This blown cold air does not contain water vapor, so there is no risk of increasing indoor humidity.

Also, the evaporated water becomes water vapor and is exhausted to the outside together with the outdoor air, and the water that has not been completely evaporated is removed from the surface of the water tray 22 by a non-woven fabric made of nylon or the like, so that it floats on the water surface on the water tray 22. The water falls onto the mat 29 consisting of water, returns to the water tank 24 below through the condensate hose 23 connected to the water pan 22, and is returned to the water tank 7 through the water pipe 8 by the pump 26 driven by the motor 25 and circulated again. Ru.

The evaporated water is automatically replenished by a cartridge-type water supply tank 2γ in response to the water level in the water tank 24.

Reference numeral 28 is a partition wall that also serves as the bell mouth of a blower, which separates the chamber into an outdoor air flow and an indoor air flow.

The mat 29 suppresses the sound of falling water droplets and prevents the water droplets from scattering.

FIG. 3 is an enlarged vertical cross-sectional view of one embodiment of the water sprinkler 11. In FIG. 3, 1 is a rotating conical tube, with a small interior 2 at the bottom open and a large interior 3 at the top for convenient direction. A plurality of spokes 4 are attached to the spokes, and a rotating shaft 5 of a blower 15 is attached to the center of the spokes so that the rotary conical tube 1 is rotated by an electric motor about its axis.

This rotational speed is usually about 1200 to 1600 rotations.

Also, at least one small hole 6 is opened in the upper wall of the conical tube 1 to serve as a water discharge hole.

Reference numeral 7 denotes a water tank, and the water supply is controlled by a pump 26 to maintain a predetermined water level, and is installed so that the small internal opening 2 of the rotating conical tube is immersed below this water level.

Therefore, water is pushed up through the water pipe 8 to maintain a predetermined water level 9 in the water tank 5.

When the rotating shaft 5 is rotated in this state, if the inclination angle of the conical tube 1 is θ and the bottom opening is γ, then when the conical tube rotates at an angular velocity W, the water at the bottom opening is subjected to a centrifugal force of γW2.

The resultant force of this centrifugal force γW2 and gravity g, 2 + ,
2 W4 acts on the water, and because of the component of this resultant force in the upward direction of the inclination of the conical tube, the water rises upward in the conical tube.

These rising waters scatter toward the outer periphery from the small holes 6, but during the scattering, they fall downward under the influence of gravity and are dispersed.

In this sprinkling, the ice particles are distributed uniformly and finely in a circle around the rotating shaft 5, and the distribution is even. Therefore, if a heat exchanger or the like is installed below the water tank, good watering can be achieved. I can receive it.

This water sprinkling action can be carried out quietly without any splashing noise since the ice particles do not collide with each other.

Next, another embodiment of the water sprinkler device will be described with reference to FIGS. 4 and 5.

In FIG. 4, reference numeral 31 denotes a water supply pipe to which water is fed by a pump 26 applying a constant water pressure.

A spout 32 is opened near one end of the water supply pipe, and water is spouted upward from the spout 32.

A rotating disk 33 is provided directly above this jet port.

This rotating disk 33 is attached to the lower end of the rotating shaft 5 of the blower 15, and its center of rotation is located directly above the jet port 32.

That is, the water ejected from the ejection port 32 is ejected toward the center of the rotating disk.

A center hole 35 is provided at the center of the lower surface of this rotating disk so as to form a spherical recess at a position where water is sprayed.

A plurality of spherical recesses 36 are formed on the outer periphery of the center hole 35, and the boundary between the recesses 36 and 36 is a curved ridge 37, and the boundary between the recess 36 and the center hole 35 is circular. It forms a ridge 38.

To explain the action of the rotating disk, when the rotating shaft 5 is driven to rotate the rotating disk and water is supplied from the pump 26, water is ejected upward from the spout 2 of the water supply pipe 31 and enters the center hole 35. do.

The water that hits the bottom of the center hole 35 is guided by the spherical surface and flows backwards, and part of it spreads and scatters in the direction of the spout 32, and the rest flows out along the disk surface, over the circular ridge 38, and toward the recess 36. In the concave portion 36, the liquid flows along the curved surface due to the centrifugal force of rotation, and spreads from the upper surface and outermost periphery of the curved ridge 37 from the center of rotation, and is uniformly scattered diagonally downward.

This scattering is done so that the ice particles are evenly distributed in a circular shape centered on the rotation axis.

Since the water moves along the curved surface and is dispersed by centrifugal force, the water flow is smooth and the watering noise is quiet.

According to actual measurements of an air conditioner using the water sprinkler according to the present invention, when the temperature and humidity of the outdoor air is 33°C and 50% RH, the spray water temperature is 25.2°C and the indoor air temperature is 26°C.
The temperature was 9 degrees Celsius, which means that the temperature has been cooled by about 6 degrees Celsius, and while the humidity is increasing, an extremely pleasant cooling effect can be obtained.

Figures 6 and 7 show modified examples of the rotating disk.
The rotating disk 33a shown in the figure is provided with a center hole 35a forming a spherical recess at a position where water is sprayed on the center of rotation of the lower surface.

However, a groove 47 is cut toward the periphery in a cross pattern around the center hole 35a of the lever, and the lower surface of the disk defined by the center hole 35a and the groove 47 is raised to form a convex spherical surface.

In this case, the sprayed water turns around at the bottom of the center hole, spreads downward, and scatters, and the water that flows out to the convex spherical surface 49 is also blown off by centrifugal force from the apex or peripheral edge of the convex spherical surface and scatters. .

In the case of FIG. 7, the center hole 35 in the embodiments of FIGS. 4 and 5 is omitted, and the rotating disk 33b has a plurality of spherical recesses on the outer periphery of the rotation center 48 where water is sprayed. 3
6b, and in this case, the ridges 37b forming the boundaries between the respective recesses 36b are curved and formed radially from the center toward the periphery.

In this case, the center of rotation 48 is lower than the other parts, and the water sprinkled at the center spreads by centrifugal force to each recess according to the slope, and is blown away by centrifugal force outward from the top and periphery of each ridgeline. be dispersed.

As described above, the air conditioner of the present invention uses the rotation of the axis of the electric blower that blows air to the heat exchanger etc. to rotate the rotating disk, so the structure is simple and no separate power is required. It has the following characteristics.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a part of an embodiment of the air conditioner according to the present invention in longitudinal section, FIG. 2 is a perspective view showing the main parts of the air conditioner according to the present invention, and FIG. 4 is a vertical cross-sectional view showing another embodiment of the water sprinkler device of the present invention, FIG. 5 is a vertical cross-sectional view showing another embodiment of the water sprinkler device of the present invention, and FIG. Figure 6 is a bottom view, the front view is a cross-sectional view taken along line A-B in figure A, figure C is a cross-sectional view taken along line C-D in figure A, and Figure 6 is a modified example of the rotating disk, and figure A is the bottom view. The opening is a cross-sectional view taken along line AB in figure A, Figure 7 is another modified example of the rotating disk, and figure A is its bottom view, and the mouth is a cross-sectional view taken along line A-B in figure A. 2 is a cross-sectional view taken along line C-D in Figure A. In addition, a is a housing, 10 is a heat exchanger, 28 is a partition, 16.
20 is an inlet, 17 and 21 are outlet ports, 15 is an outdoor blower, 19 is an indoor blower, 11 is a water sprinkler, and 26 is a pump.

Claims (1)

[Claims] 1. A casing, a heat exchanger formed of heat-conductive partition plates arranged in the casing at predetermined intervals so that primary airflow and secondary airflow alternately pass through the casing, and a partition wall that partitions the chamber into a chamber communicating with the primary air flow path and the secondary air flow path of the container; an inlet and an air outlet provided in the casing wall of each chamber partitioned by the partition wall; It is equipped with an outdoor blower and an indoor blower in each room, a water sprinkler fixed to the rotating shaft of the outdoor blower, and a water supply device that supplies water to the sprinkler, and the rotation of the sprinkler scatters water in a centrifugal direction. An air conditioner characterized in that water is sprinkled on the heat exchanger.