KR20210125325A - Air conditioning device of air circulation type - Google Patents

Abstract

An objective of the present invention is to provide a cooling device which can be used in a space with a low story height. According to one embodiment of the present invention, the air-circulating cooling device comprises: a main body housing of which an upper and a lower portion are opened to allow air entering through the upper portion thereof to be discharged through the lower portion thereof; a cooling block installed in the main body housing to be positioned on the path of the air, and cooling the air; and a water drop separation unit installed on a lower portion of the cooling block, and collecting water drops falling from the cooling block. The water drop separation unit has a plurality of water drop separators arranged in a horizontal direction while being separated from each other. The water drop separators include: a base plate extended in zigzags in a vertical direction to form a mountain and a valley in a preset depth and have a preset width in the horizontal direction, and allowing the water drops to flow along the surface thereof; a plurality of blades protruding from one surface and the other surface of the base plate to form a channel for accommodating the water drops, wherein the channel is arranged to be inclined downwards toward one end of the base plate in the horizontal direction; and a container arranged adjacent to the other end of the base plates to collect the water drops falling from the blades.

Description

Air circulating cooling system capable of water-drop separation {AIR CONDITIONING DEVICE OF AIR CIRCULATION TYPE}

The present invention relates to a cooling device, and more particularly, to a cooling device capable of water separation.

Generally used air conditioners are suitable for use in spaces of the same size as offices or classrooms, but there is a limitation in cooling in spaces of the same size as gyms or auditoriums with high ceilings. is dispersed into the space, and the cooling efficiency is greatly reduced.

Korean Patent Publication No. 0221475 (September 15, 1999)

An object of the present invention is to provide a cooling device that can be used in a space with a high floor height.

Another object of the present invention is to provide a cooling device capable of easily collecting water droplets generated in the process of cooling air.

Still other objects of the present invention will become more apparent from the following detailed description and accompanying drawings.

According to an embodiment of the present invention, the air conditioner may include: a main body housing having upper and lower portions open to allow air introduced through the upper portion to flow out through the lower portion; a cooling block installed in the body housing and positioned on the air path to cool the air; and a water separation unit installed under the cooling block and collecting water drops falling from the cooling block, wherein the water separation unit is spaced apart from each other and arranged in a horizontal direction. , The water separator includes: a base plate extending in a zigzag along a vertical direction to form mountains and valleys to a predetermined depth and having a predetermined width in a horizontal direction, the water droplets flowing along the surface; a plurality of blades respectively protruding from one surface and the other surface of the base plate to form a channel capable of accommodating the water droplets, wherein the channel is disposed to be inclined downwardly from one end of the base plate toward the other end in a horizontal direction; and a container disposed adjacent to the other end of the base plates to collect the water droplets falling from the blades.

The air conditioner may further include a bulkhead installed under the lowermost blade among the blades, positioned inside the other ends of the lowermost blades, and guiding the water droplets falling from the other end of the lowermost blade to the container. have.

The partition wall may be disposed between the base plates to connect the base plates, and a lower end of the partition wall may be located inside the container.

The blades may include main blades forming a main channel located outside the base plate with respect to the mountain; And it may be provided with auxiliary blades forming an auxiliary channel located in the valley of the base plate.

The cooling device may further include a heat insulating member surrounding the outer side of the lower surface of the blade.

According to an embodiment of the present invention, since low-temperature air is discharged to the lower part with a high blowing pressure even in a space with a high floor height, efficient cooling can be achieved. In addition, comfortable cooling can be achieved by easily collecting water droplets that move together with the air while the air is discharged to the lower part.

1 is a partial cross-sectional view schematically showing an air circulation type air conditioner according to an embodiment of the present invention.
FIG. 2 is a diagram schematically showing the water separator shown in FIG. 1 .
3 is a view showing a water separator, a bulkhead, and a container shown in FIG. 1 .
4 is a cross-sectional view showing the hopper and the nozzle shown in FIG.
5 is a cross-sectional view illustrating a heat transfer element installed inside the heat transfer housing shown in FIG. 1 and a duct installed inside the filter housing.
FIG. 6 is a diagram schematically showing another embodiment of the water separator shown in FIG. 1 .
FIG. 7 is a diagram schematically showing another embodiment of the water separator shown in FIG. 1 .

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying FIGS. 1 to 7 . Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. These examples are provided to explain the present invention in more detail to those of ordinary skill in the art to which the present invention pertains. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a clearer description.

1 is a partial cross-sectional view schematically showing an air circulation type air conditioner according to an embodiment of the present invention. As shown in FIG. 1 , the air circulation type air conditioner includes a heat transfer device 10 , a filter device 20 , a body 30 , and a discharge unit 50 , and the discharge unit 50 includes a hopper 51 . ) and a connecting pipe 52 , and a nozzle 55 . Air circulating air conditioners are installed in a space the same size as a gym or auditorium with a high floor and exhaust the cooled air to the ground to cool and circulate the indoor air.

The body housing 31 has a shape that is opened up and down and has an empty interior, and a blowing fan F and cooling blocks 42a and 42b are installed in the interior space. Blowing fan (F) is installed in the upper part of the inner space to forcibly blow toward the lower part, the air that has passed through the inside of the filter housing 21 to be described later is directed toward the cooling blocks (42a, 42b) by the blowing fan (F). forced to blow

The cooling blocks 42a and 42b include a support frame 42a and a plurality of cooling coils 42b inserted into the support frame 42a. The support frame (42a) is a square frame shape, the center is hollow. The support frame 42a fixes the plurality of cooling coils 42b in a spaced apart state, and a plurality of openings (not shown) are formed between the cooling coils 42b while the cooling coils 42b are fixed.

The cooling coil 42b may be a coil in which a medium (or refrigerant) supplied from the outside flows therein. The coil constitutes a heat pump operated by a cooling cycle, and may include a compressor, a condenser, and an expansion valve. A heat pump is a facility capable of moving heat from a low temperature side to a high temperature side, and depending on the flow direction of the medium, the medium flowing inside the coil 42b may be cooled and used for cooling. The air forcedly blown through the blowing fan (F) passes through the cooling blocks (42a, 42b), and when the cooled medium flows inside the cooling coil (42b), it flows along the outer surface of the cooled cooling coil (42b). The air can be cooled.

As shown in FIG. 1 , the water drop separation unit 70 is installed under the cooling blocks 42a and 42b to collect water droplets generated in the cooling blocks 42a and 42b. While the air is cooled while passing through the cooling blocks 42a and 42b, moisture in the air is condensed on the surfaces of the cooling blocks 42a and 42b to generate water droplets. If the resulting water droplets are not collected, they may be discharged along with the cooled air and fall to the ground, which may wet or contaminate the body or clothing of people indoors.

The water drop separation unit 70 includes a support frame 62 and a supporter 64 , and the support frame 62 is supported through a supporter 64 fixed to the inner wall surface of the body housing 31 . The support frame 62 has a polygonal or circular frame shape with an empty center, and a plurality of water separators 70 are fixed on the support frame 62 . The plurality of water separators 70 are arranged to be spaced apart along the horizontal direction, and have the same shape and structure and are repeatedly arranged. As described above, water droplets generated in the process of air passing through the cooling blocks 42a and 42b freely fall from the cooling blocks 42a and 42b and are collected through the water drop separator 70, and the cooling blocks 42a and 42b. ), the cooled air may move to the nozzle 55 through the spaced apart space between the water separators 70 .

FIG. 2 is a view schematically showing the water separator shown in FIG. 1 , and FIG. 3 is a view showing the water separator, bulkhead and container shown in FIG. 1 . As shown in FIG. 2 , the water separator 70 includes a base plate 74 and blades 77 and 78 , and extension plates 72 and 76 .

2 and 3, the base plate 74 extends in a zigzag along the vertical direction, and has a predetermined width along the horizontal direction (left and right direction based on FIG. 3). The base plate 74 has a peak/valley formed to a predetermined depth, and the valley is located between the mountain and the mountain, and the mountain is located between the valley and the valley. That is, when viewed from the left side of FIG. 2 , two mountains and one valley exist, and when viewed from the right side of FIG. 2 , two valleys and one mountain exist. The extension plates 72 and 76 are respectively connected to the upper and lower ends of the base plate 74 , and the base plate 74 is fixed to the support frame 62 through the upper extension plate 72 .

The blades 77 and 78 have a main blade 77 and an auxiliary blade 78 , the main blade 77 being located outside the mountain of the base plate 74 and the auxiliary blade 78 being the base plate 74 . located on the medial side of the bone Specifically, the main blade 77 protrudes from the side surface of the base plate 74 to form a main channel 77A, and the main channel 77A is located outside the mountain of the base plate 74 . The main blade 77 includes a limiting plate substantially parallel to the base plate 74 and a connecting plate connecting the limiting plate and the base plate 74 .

Similarly, the auxiliary blade 78 protrudes from the side surface of the base plate 74 to form an auxiliary channel 78A, and the auxiliary channel 78A is located inside the bone of the base plate 74 . As shown in FIG. 2 , the main channel 77A and the auxiliary channel 78A described above may be alternately disposed along the base plate 74 . The auxiliary blade 78 includes a limiting plate substantially parallel to the base plate 74 and a connecting plate connecting the limiting plate and the base plate 74 .

As described above, the air forcedly blown by the blowing fan (F) is cooled in the process of passing through the cooling blocks (42a, 42b), and moisture in the air is condensed through contact with the surfaces of the cooling blocks (42a, 42b). water droplets are formed, and the formed water droplets descend with the cooled air.

At this time, the cooled air passes through the space between the water separators 70 and moves to the nozzle 55, but the water droplets freely fall to the surface of the base plate 74 and flow along the surface of the base plate 74. , is accommodated in the main channel (77A) or the auxiliary channel (78A) according to the drop position on the base plate (74).

On the other hand, as shown in FIG. 3, the blades 77 and 78 are arranged to be inclined downward by about 15 to 20 degrees toward the right end (referring to FIG. 3) of the base plate 74. Similarly, the main channel ( 77A)/auxiliary channel 78A is disposed to be inclined downward by about 15 to 20 degrees toward the right end (refer to FIG. 3 ) of the base plate 74 . Accordingly, water droplets in the main channel 77A/sub channel 78A flow toward the right end of the base plate 74 (refer to FIG. 3).

3, the right end of the base plate 74 and the inner surface of the body housing 31 are spaced apart, and adjacent to the right end of the base plate 74 is a container 82 in the lower part of the base plate 74. is installed Water droplets flowing toward the right end (refer to FIG. 3) of the base plate 74 along the main channel 77A/sub channel 78A fall toward the container 82 and fill the container 82, and the discharge pipe With 86 connected to container 82 , water droplets may be discharged through discharge pipe 86 .

On the other hand, as shown in FIG. 3, the cooled air descends through the central portion of the base plate 74 due to the blowing pressure of the blowing fan F, while the water droplet falls on the right end of the base plate 74 and the body housing ( 31), free fall through the movement space formed between the inner surfaces. Therefore, the moving speed of the cooled air is relatively large compared to the moving speed of the water droplet, and according to Bernoulli's theorem, a higher pressure is formed in the moving space of the air compared to the moving space of the water droplet, so that a part of the water droplet moves through the container 82 . A phenomenon may occur that moves toward the center of the base plate 74 (or outward of the container 82) without falling vertically downward toward the base plate 74 and moves to the ground together with the cooled air.

The partition wall 84 is installed under the base plate 74 , blocks water droplets moving toward the central portion of the base plate 74 (or the outside of the container 82 ) and guides them to the container 82 . Specifically, the partition wall 84 may be a thin sheet or plate, and may be fixed to the bottom surface of the lowermost blade 77 in a state where the upper end of the partition wall 84 is located inside the right end of the lowermost blade 77. . The lower end of the partition wall 84 may be located inside the container 82 . When a part of the water droplet moves toward the central portion side of the base plate 74 (or the outside of the container 82) due to the pressure difference, the partition wall 84 blocks the movement of the corresponding water droplet and the water droplet moves to the surface of the partition wall 84. may move to the inside of the container 82 .

4 is a cross-sectional view showing the hopper and the nozzle shown in FIG. As shown in FIG. 4 , the hopper 51 has a trapezoidal cross-section, and a connecting pipe 52 is connected to the lower end of the hopper 51 . The hopper 51 has a shape in which the cross-sectional area of the inner space decreases toward the bottom, and is opened up and down to have an empty inside.

The nozzle 55 has an inner space, and like the hopper 51 , the cross-sectional area of the inner space is reduced. 4, the nozzle 55 has a left nozzle opening 55a and a right nozzle opening 55b communicating with the inner space, and the air passing through the coil 42b is the hopper 51 and the connecting pipe 52 ) and then discharged through the left nozzle opening (55a) and the right nozzle opening (55b). That is, the heated or cooled air may be discharged at a high pressure through the blowing fan F to reach the lower part of the large space.

On the other hand, as shown in FIG. 4 , the nozzle 55 is discharged only through the left nozzle opening 55a and the right nozzle opening 55b, so that the heated or cooled air is discharged with directionality. Accordingly, when it is necessary to evenly heat or cool the large space, the rotation of the nozzle 55 is required.

The filter unit is installed inside the filter housing 21, and the filter housing 21 has an open top and bottom and an empty interior.

5 is a cross-sectional view illustrating a heat transfer element installed inside the heat transfer housing shown in FIG. 1 and a duct installed inside the filter housing. The heat transfer housing 11 is installed on the top of the filter housing 21, and through the heat transfer housing 11, indoor air (or internal air) (RA) is discharged to the outside (EA), and outside air (OA) is discharged into the room. is introduced (SA), and in this process, the indoor air and the outdoor air exchange heat, thereby minimizing the energy loss generated in the process of the indoor air being discharged to the outside.

The heat transfer housing 11 has an internal air exhaust port 11a and an external air inlet port 11b formed at the upper part, and an external air exhaust port 11c and an internal air inlet port 11d formed at the lower part. In addition, an internal air flow path connecting the internal air exhaust port 11a and the internal air inlet port 11d and an external air flow path connecting the external air exhaust port 11c and the external air inlet port 11b are provided in the heat transfer housing 11 ), and the internal air flow path and the external air flow path are isolated through the heat transfer element (12). The internal air exhaust port 11a and the external air inlet port 11b are isolated through the partition wall 11e.

The internal air is introduced through the inlet 22 formed on the side of the filter housing 21, and through the duct 23 connecting the inlet 22 and the internal air inlet port 11d to the internal air inlet port 11d. Move. The exhaust fan 13 is installed in the internal air exhaust port 11a, and forcibly exhausts the internal air that has passed through the internal air inlet port 11d and the internal air flow path through forced blowing to the outside.

The outside air is introduced through the outside air inlet port 11b and moves to the inside of the filter housing 21 through the outside air flow path and the outside air discharge port 11c. At this time, the external air and the internal air do not mix with each other in the inside of the filter housing 21 and the inside of the heating housing 11, and the heating element ( 12), only heat exchange takes place. Therefore, when the temperature of the outside air is higher than the temperature of the inside air, the temperature of the outside air is lowered, and when the temperature of the outside air is lower than the temperature of the inside air, the temperature of the outside air is increased.

Consequently, the air inside the large space is discharged to the outside of the space through the internal air discharge port 11a, and the air outside the large space is introduced into the inside of the space through the outside air inlet port 11b. Thereafter, the outside air is filtered through the filter 26 and then heated or cooled through the coil 42b, and reaches the lower part of the large space through the nozzle 55 to efficiently cool and cool the large space. After reaching the lower part of the large space, the heated or cooled air induces air circulation through an upward flow, and as described above, may be discharged to the outside of the space through the internal air discharge port 11a.

FIG. 6 is a diagram schematically showing another embodiment of the drop separator shown in FIG. 1 , and FIG. 7 is a diagram schematically showing another embodiment of the drop separator shown in FIG. 1 .

As described above, moisture in the air is in contact with the surfaces of the cooling blocks 42a and 42b in the process of passing through the cooling blocks 42a and 42b to generate water droplets, and the generated water droplets are directed to the surface of the base plate 74 . It falls freely and flows along the surface of the base plate 74 and is accommodated in the main channel 77A or the auxiliary channel 78A.

At this time, since water droplets are generated on the surfaces of the cooling blocks 42a and 42b, they may have a lower temperature than the air cooled in the process of passing through the cooling blocks 42a and 42b. Accordingly, in a state in which the water droplets are accommodated in the main channel 77A or the auxiliary channel 78A, water droplets may be secondarily generated by condensation on the outside of the lower surface of the main blade 77 or the auxiliary blade 78, and the secondary generation The cooled water droplets can be discharged with the cooled air and wet or contaminate the body or clothing of people indoors. Therefore, by installing a separate heat insulating member on the outside of the lower surface of the main blade 77 or the auxiliary blade 78, the temperature difference between the cooled air and the water droplets accommodated in the main blade 77 / auxiliary blade 78 is It is necessary to prevent the secondary generation of water droplets.

As shown in FIG. 6, an insulating member (eg, silicone or rubber) (A) having a low heat transfer rate may be applied or adhered to the outside of the lower surface of the main blade 77/sub blade 78. In this case, since it is possible to prevent direct contact between the cooled air and the outside of the lower surface of the main blade 77 / auxiliary blade 78, it is possible to prevent the secondary generation of water droplets. Unlike the present embodiment, the section in which the heat insulating member A is installed among the outer surfaces of the main blade 77 / auxiliary blade 78 may be enlarged or reduced.

In addition, as shown in FIG. 7 , in the process of manufacturing the water separator, the heat insulating member A is installed under the main blade 77/sub-blade 78, and the main blade 77/sub-blade 78 is installed. ) may form a cavity (C) in the lower portion. Specifically, the heat insulating member (A) connects the lower surface of the main blade 77 / auxiliary blade 78 and the base plate 74, in this case the main blade 77 / the lower surface of the auxiliary blade 78 outside at the same time as blocking the heat transfer between the air cooled through the air gap C and the water droplets accommodated in the main blade 77 / auxiliary blade 78, it is possible to prevent the secondary generation of water droplets can be prevented Unlike the present embodiment, the section in which the heat insulating member A is installed among the outer surfaces of the main blade 77 / auxiliary blade 78 may be enlarged or reduced.

Although the present invention has been described in detail through preferred embodiments, other types of embodiments are also possible. Therefore, the spirit and scope of the claims set forth below are not limited to the preferred embodiments.

10: electric heating device 11: electric heating housing
13: exhaust fan 21: filter housing
22: inlet 31: body housing
42a: support block 42b: coil
50: discharge unit 51: hopper
52: connector 55: nozzle

Claims (5)

a body housing having an upper part and a lower part open so that the air introduced through the upper part flows out through the lower part;
a cooling block installed inside the body housing and positioned on the air path to cool the air; and
A water drop separation unit installed under the cooling block and collecting water drops that have fallen from the cooling block,
The water separation unit includes a plurality of water separators arranged in a horizontal direction in a state of being spaced apart from each other,
The water separator is
a base plate extending in a zigzag along the vertical direction to form mountains and valleys to a predetermined depth and having a predetermined width along the horizontal direction, the water droplets flowing along the surface;
a plurality of blades respectively protruding from one surface and the other surface of the base plate to form a channel capable of accommodating the water droplets, wherein the channel is disposed to be inclined downwardly from one end of the base plate toward the other end in a horizontal direction; and
and a container disposed adjacent to the other end of the base plates to collect the water droplets falling from the blades. According to claim 1,
The cooling device is
The air conditioner further comprising: a partition installed under the lowermost blade of the blades, located inside the other ends of the lowermost blades, and guiding the water droplets falling from the other end of the lowermost blades to the container. 3. The method of claim 2,
The partition wall is disposed between the base plates to connect the base plates,
The lower end of the partition wall is located inside the container. 4. The method according to any one of claims 1 to 3,
The blades are
main blades forming a main channel located outside the base plate with respect to the mountain; and
A cooling device comprising auxiliary blades forming an auxiliary channel located in the valley of the base plate. 4. The method according to any one of claims 1 to 3,
The cooling device is
The cooling device further comprising a heat insulating member surrounding the outer side of the lower surface of the blade.

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