KR101705747B1 - Absorption refrigeration type airconditioner - Google Patents

Abstract

The present invention relates to an absorption type air conditioner. The case 10 forms the appearance of the present invention. An inner space 12 is formed in the case 10 and a pressure tank 14 in which the first heat medium is contained. The pressure inside the pressure tank 14 is lowered to a predetermined value by the vacuum pump 38. The pressure inside the pressure tank 14 is lowered by the vacuum pump 38 and the evaporation temperature is lowered so that the first heat medium can be rapidly evaporated. An internal heat exchanger 16 is provided in the pressure tank 14 and an indoor heat exchanger 18 is installed in the case 10 in connection with the internal heat exchanger 16. The second heat medium flows between the indoor heat exchanger (18) and the internal heat exchanger (16). The first heat medium having passed through the internal heat exchanger (16) is transferred to the outdoor heat exchanger (44) to perform heat exchange with the external air. The first heat medium in the pressure tank 14 is sprayed through the nozzle 36 and sprayed on the surface of the internal heat exchanger 16 to perform heat exchange with the second heat medium. The indoor heat exchanger (18) exchanges heat with the second heat medium while air flowing by the indoor air blowing fan (26) passes.

Description

Absorption refrigeration type airconditioner

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption type air conditioner, and more particularly, to an absorption type air conditioner that integrates a configuration for cooling or heating a predetermined space.

In order to ensure that people do their work or stay in a comfortable space, regardless of the outside environment, they are cooling in summer and heating in winter. When cooling, the heat inside the space is discharged to the outside, and when heating, heat is supplied to the inside of the space. For this purpose, the air conditioning system is installed in a building in the central air conditioning system, and an individual air conditioning system is generally installed in a separate space by an indoor unit and an outdoor unit to occupy a lot of space.

In addition, since the indoor unit and the outdoor unit are separately provided in different locations, the conventional individual-type air conditioner has a problem that a large amount of energy is lost in the process of transferring the heating medium therebetween.

In a typical air conditioner, a refrigerant such as Freon gas is used. The refrigerant such as the CFC gas may cause problems such as pollution of the global environment and tends to use a new refrigerant.

Korean Patent Publication No. 10-1992-0004799

SUMMARY OF THE INVENTION An object of the present invention is to provide an absorption type air conditioning apparatus which performs cooling and heating more quickly by lowering the pressure of water in a pressure tank to lower the evaporation temperature of water.

Another object of the present invention is to minimize the energy loss generated in the process of moving the heat medium by making the air conditioner integrally configured to discharge heat out of the space to be cooled.

Another object of the present invention is to provide an environmentally friendly absorption type air conditioning apparatus using a non-harmful heating medium.

According to an aspect of the present invention for achieving the above-mentioned object, the present invention is characterized in that an internal space is formed and a separate space surrounded by the heat insulating material is formed to be partitioned from the internal space, A pressure tank provided in an inner space of the case and hermetically sealed to the outside and having a first heating medium therein; a decompression means for decompressing the pressure inside the pressure tank to a predetermined value; An internal heat exchanger installed inside the pressure tank and having a second heat medium which is heat-exchanged with the first heat medium to flow therein, and a second heat medium installed in the internal space of the case and flowing in the internal heat exchanger, An indoor heat exchanger for exchanging heat with air supplied as a space for the indoor heat exchanger, An indoor air blowing fan for allowing air to flow through the discharge holes of the indoor heat exchanger and the discharge plate as a space for harmonization, a nozzle for spraying the first heat medium in the pressure tank onto the surface of the internal heat exchanger, And an outdoor heat exchanger installed in a separate space for receiving the first heat medium that has passed through the internal heat exchanger and exchanging heat with outdoor air.

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A nozzle circulation pump for supplying the first heat medium to the nozzle, an indoor circulation pump for flowing the first heat medium between the internal heat exchanger and the indoor heat exchanger, an outdoor circulation pump for circulating the second heat medium between the outdoor heat exchanger and the pressure tank Side circulation pump is further provided.

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A tray is provided below the gravity direction of the internal heat exchanger to collect the first heat medium injected to the internal heat exchanger by the nozzle.

As the decompression means, a fan or a vacuum pump for discharging the air inside the pressure tank is used.

Water is used as the first heating medium and the second heating medium.

A heater for supplying heat to the first heat medium in the heating operation is further provided in the pressure tank.

In the absorption type air conditioning apparatus according to the present invention, the following effects can be obtained.

In the present invention, the pressure inside the pressure tank filled with the heating medium can be lowered by using a vacuum pump, so that the evaporation temperature of the water can be lowered so that the phase change of the heating medium can be generated more quickly. Therefore, there is an effect that cooling and heating can occur more quickly and efficiently.

Particularly, in the present invention, water is used as a heating medium and the pressure of the space filled with water is lowered to lower the evaporation temperature of the water, thereby lowering the temperature of the water. The cooling water is cooled using the cold water. Heat can be applied to boil quickly.

In the present invention, since the heat in the space for air conditioning is received and discharged to the outside, the loss of energy caused by the movement of the heating medium between the components of the air conditioner is minimized, There is an effect that it is possible to reduce the space required for installing the air conditioner.

In the present invention, since water is used as the heating medium, there is no fear of environmental pollution and the maintenance cost is relatively lowered.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a preferred embodiment of an absorption type air conditioning apparatus according to the present invention. FIG.
Fig. 2 is a rear side view showing the configuration of the embodiment of the present invention as seen from the opposite side of Fig. 1. Fig.
3 is a configuration diagram schematically showing the configuration of an embodiment of the present invention.
4 is a plan view schematically showing the configuration of an embodiment of the present invention.
5 is a side view showing an outer side surface of a pressure tank constituting an embodiment of the present invention.
6 is an operational state view showing that air supplied to an indoor space flows in the embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

According to the drawings, the case 10 forms the appearance of the present invention. The case 10 has a hexahedral shape in this embodiment. However, the case 10 need not necessarily be a hexahedron. An internal space 12 is formed in the case 10. The parts constituting the present invention are installed in the internal space 12. [ The inner space (12) opens to one side of the case (10). This is for the purpose of enabling maintenance of parts installed in the inner space 12 inside the case 10. In this embodiment, the top surface can be opened based on the drawing. A separate cover (not shown) is provided on the open surface.

The present invention can be installed in the ceiling of the room IN or stand-mounted on one side of the room IN. To this end, the configuration of the case 10 is designed to be suitable for each case, and the installation state of the internal parts is changed.

A pressure tank (14) is located in the inner space (12) of the case (10). The pressure tank 14 has a structure capable of withstanding a vacuum pressure. The pressure tank 14 is designed to be sealed so that a vacuum pressure is not leaked. In order to communicate the inside and the outside of the pressure tank 14, a plurality of needles 14 ', 22', 34 ', 38', and 42 'are installed as shown in FIG. The needle (14 ', 22', 34 ', 38', 42 ') is provided with a butterfly ball valve or connection socket to prevent leakage when the pipe is separated, , 34 ', 38', and 42 'are connected to various pipes. Reference numeral 14 'denotes a needle for injecting the first heat medium into the pressure tank 14, reference numeral 22' denotes a needle to which the first connection pipe 22 is connected, reference numeral 34 'denotes a nozzle pipe 34 Reference numeral 38 'denotes a needle to which a vacuum pump 38 is connected, and reference numeral 42' denotes a needle to which the outdoor side piping 42 is connected.

In the pressure tank 14, approximately half or more of the space is filled with the first heat medium. It is preferable to use water as the first heat medium. An internal heat exchanger (16) is installed in the pressure tank (16). The internal heat exchanger (16) performs heat exchange inside the pressure tank (14). And the second heat medium flows along the interior of the internal heat exchanger (16). The second heat medium circulates between the internal heat exchanger (16) and the indoor heat exchanger (18) described below. The second heat medium is preferably water. In the internal heat exchanger (16), heat exchange occurs between the second heat medium and the first heat medium.

An indoor heat exchanger (18) is installed in the internal space (12) of the case (10) in connection with the internal heat exchanger (16). As shown in FIGS. 1 and 2, the indoor heat exchanger 18 is installed in the inner space 12 so as to face opposite sides of the pressure tank 14. When the indoor heat exchanger 18 is installed in the case 10 as shown in the drawing, the flow of air may not be smooth. However, in actuality, it is possible to adjust the distance between the position of the indoor heat exchanger 18 and the inner surface of the case 10 so that the flow of the air passing through the indoor heat exchanger 18 smoothly occurs.

The second heat medium flowing between the internal heat exchanger (16) and the indoor heat exchanger (18) is pressurized and flows by the indoor circulation pump (20). The internal heat exchanger (16) and the indoor heat exchanger (18) are connected to each other by a first connection pipe (22) to form a closed circuit so that the second heat medium is allowed to flow therein.

A heater (24) is installed inside the pressure tank (14). The heater (24) serves to supply heat to the first heat medium inside the pressure tank (14) during heating operation. Therefore, when the apparatus of the present invention is used for cooling only, the heater 24 may not be used.

The inside space (12) of the case (10) has an indoor air blowing fan (26). The indoor ventilation fan (26) produces an air flow passing through the indoor heat exchanger (18). The indoor ventilation fan (26) allows air to flow through the indoor heat exchanger (18) to the room (IN). The air passing through the indoor heat exchanger (18) is introduced into the case (10) from the room (IN). To this end, a separate flow path may be formed in the case 10. The air that is flowed by the indoor side air blowing fan 26 passes through the indoor heat exchanger 18 and flows into the room IN through the discharge plate 28 to be described below.

On the outer surface of one side of the case 10, a discharge plate 28 is provided. The discharge plate 28 is formed with a discharge hole (not shown) for communicating the internal space 12 with the room IN. Of course, a suction hole (not shown) for sucking the air of the room IN into the internal space 12 may be formed in the discharge plate 28. The backing 28 is exposed to the ceiling when the embodiment of the invention is installed on the ceiling.

When the lower part of the case 10 is installed on the ceiling, that is, when the apparatus of this embodiment is installed on the ceiling, a drain plate (not shown) for collecting and discharging the condensed water generated in the indoor heat exchanger 18, (30). The drain plate (30) is positioned below the gravity direction of the indoor heat exchanger (18). Therefore, the position of the drain plate 30 is changed according to the state in which the case 10 is placed in the apparatus of the present invention.

In the pressure tank 14, a nozzle circulation pump 32 is used to inject the first heat medium onto the surface of the internal heat exchanger 16. The nozzle circulation pump 32 is installed inside the case 10. The nozzle circulation pump 32 is preferably installed in a separate space 46, which will be described below.

A nozzle pipe 34 is connected to the nozzle circulation pump 32. The nozzle pipe 34 extends to the inside and the outside of the pressure tank 14 and extends to the inside and the outside of the pressure tank 14 by the needle 34 '. The nozzle pipe 34 sucks the first heat medium from the lower portion of the pressure tank 14 and transfers the first heat medium to the upper portion. A nozzle 36 is installed at a distal end of the nozzle pipe 34 located inside the pressure tank 14. The nozzle (36) injects the first heat medium into the internal heat exchanger (16). The nozzle 36 injects the first heat medium onto the outer surface of the inner heat exchanger 16, so that the heat exchange between the first heat medium and the second heat medium occurs in the inner heat exchanger 16.

The pressure tank 14 is connected to a vacuum pump 38 as a pressure reducing means. The vacuum pump 38 controls the pressure in the pressure tank 14. Other means such as a blower fan or the like capable of lowering the pressure inside the pressure tank 14 may be used in place of the vacuum pump 38. [ The pressure inside the pressure tank 14 is brought close to or close to the vacuum pressure by the vacuum pump 38. By thus lowering the pressure inside the pressure tank 14 by using the vacuum pump 38, the evaporation temperature of the first heat medium in the pressure tank 14 is lowered. That is, when the evaporation temperature of the first heat medium is lowered, the evaporation heat is used even at a relatively low temperature, so that the temperature of the first heat medium inside the pressure tank 14 is lowered, So that the first heating medium is heated by the heater to quickly boil the heating medium.

There is an outdoor side circulation pump (40) for receiving and circulating the first heat medium which has been sprayed on the surface of the internal heat exchanger (16) inside the pressure tank (14). The outdoor circulation pump 40 sucks the first heat medium which has received heat from the second heat medium in the internal heat exchanger 16. For this purpose, though not shown in the figure, A tray for collecting one heat medium may be installed below the internal heat exchanger (16). The outdoor side circulation pump 40 is also installed inside the case 10, and is preferably installed in a separate space 46, which will be described below.

The first heat medium pumped by the outdoor side circulation pump (40) is transferred to the outdoor heat exchanger (44) through the outdoor side piping (42). The first heat medium flows back to the inside of the pressure tank 14 through the outdoor heat exchanger (44).

One end of the outdoor side pipe 42 is positioned at the lower part of the inside of the pressure tank 14. However, it is preferable that one end of the outdoor side pipe 42 is positioned so that the first heat medium can be supplied directly from the tray not shown in the drawing.

The outdoor air sucked from the outdoor (OUT) passing through the outdoor heat exchanger (44) is sucked by the outdoor ventilation fan (48). The outdoor ventilation fan (48) may be installed in the separate space (46). The outdoor air flows into the outdoor space (OUT) partitioned with the separate space (46). The outdoor air is introduced into the separate space 46 by the outdoor air blowing fan 48 and exchanges heat with the first heat medium while passing through the outdoor heat exchanger 44 and is discharged to the outdoor OUT again. The outdoor air is introduced into the separate space 46 through a separate duct and then discharged to the outdoor space through a separate duct.

 The separate space (46) is defined by the surroundings and the heat insulating material (50). The heat insulating material (50) prevents the components in the separate space (46) from being affected by heat. The vacuum pump (38) is also installed in the separate space (46). A control box (not shown) may be installed in the case 10 corresponding to the separate space 46.

Hereinafter, the use of the absorption type air conditioning apparatus according to the present invention will be described in detail.

First, the absorption type air conditioner of the present invention performs cooling operation. When the control box is operated to set a desired temperature of the room IN, the vacuum pump 38 operates to lower the pressure inside the pressure tank 14. [ When the inside of the pressure tank 14 is lowered to a predetermined pressure, the first heating medium undergoes a phase change inside the pressure tank 14. Particularly, when the first heat medium is evaporated, the latent heat of vaporization is used in the process, and the temperature of the first heat medium is lowered.

The first heating medium having a lower temperature is transferred to the nozzle 36 through the nozzle pipe 34 by the nozzle circulation pump 32. The first heat medium transferred to the nozzle 36 is sprayed from the nozzle 36 and sprayed on the surface of the internal heat exchanger 16. The first heat medium sprayed on the surface of the internal heat exchanger (16) exchanges heat with a second heat medium flowing inside the internal heat exchanger (16). The second heat medium passes through the internal heat exchanger (16) and is heat-exchanged with the first heat medium, whereby the temperature is relatively lowered. The second heat medium having passed through the internal heat exchanger 16 passes through the first connection pipe 22 by the indoor circulation pump 20 and is transferred to the indoor heat exchanger 18. The second heat medium transferred to the indoor heat exchanger (18) flows through the indoor air blowing fan (26) and exchanges heat with air passing through the indoor heat exchanger (18). Therefore, the air is relatively low in temperature and flows into the room IN through the indoor heat exchanger 18 and the indoor ventilation fan 26. In this way, the room IN is made to the set temperature by the air that has flowed into the room IN.

On the other hand, the second heat medium having passed through the indoor heat exchanger (18) flows to the internal heat exchanger (16). In the internal heat exchanger 16, the first heat medium sprayed by the nozzle 36 and sprayed on the surface of the internal heat exchanger 16 and the second heat medium flowing inside the internal heat exchanger 16 exchange heat with each other.

The outdoor circulation pump 40 sucks the refrigerant passing through the internal heat exchanger 16 out of the first heating medium inside the pressure tank 14 and supplies the refrigerant to the outdoor heat exchanger (44). It is preferable that the outdoor heat exchanger (40) can suck all of the first heat medium that has passed through the internal heat exchanger (16), and a separate tray (not shown) may be provided as described above. And the first heat medium collected in the tray can be sucked by the outdoor side circulation pump 40 and the outdoor side pipe 42.

The first heat medium transferred to the outdoor heat exchanger (44) exchanges heat with outdoor air from the outdoor (OUT) in the outdoor heat exchanger (44). In this way, the heat of the first heat medium is transferred to the outside air, and the outside air is transferred to the outside (OUT).

The first heat medium having passed through the outdoor heat exchanger (44) is relatively low in temperature and transferred to the pressure tank (14). The first heat medium transferred into the pressure tank 14 is evaporated by the low evaporation temperature in the pressure tank 14 to absorb the latent heat of vaporization and the temperature inside the pressure tank 14 is lowered.

Next, the heating operation will be described. In the heating operation, the heater 24 is operated to raise the temperature of the first heat medium. By operating the vacuum pump 38 to lower the internal pressure of the pressure tank 14 to a predetermined value, So that the temperature can be raised more quickly.

After this, the first heat medium is sent to the nozzle 36 and sprayed on the surface of the internal heat exchanger 16, so that heat exchange with the second heat medium occurs in the internal heat exchanger 16. The second heat medium is heated by the heat from the first heat medium and the second heat medium is sent to the indoor heat exchanger (18), so that the heat exchange with the second heat medium occurs in the internal heat exchanger (16) And is heat-exchanged with the air flowing by the indoor-side air blowing fan (26).

The air flowing through the indoor heat exchanger (18) passes through the indoor heat exchanger (18) and receives heat to raise the temperature of the indoor unit (IN) to a predetermined temperature.

The outdoor side circulation pump 40 is not operated during the heating operation, and the heat given from the heater 24 is used. Therefore, the outdoor ventilation fan 48 is also not operated.

The second heat medium which has been heat-exchanged in the indoor heat exchanger 18 is transferred to the internal heat exchanger 16 through the first connection pipe 22 and exchanges heat with the first heat medium in the internal heat exchanger 16, The process described is repeated.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Case 12: Internal space
14: Pressure tank 16: Internal heat exchanger
18: indoor heat exchanger 20: indoor circulation pump
22: first connection piping 24: heater
26: Indoor-side blowing fan 28:
30: drain plate 32: nozzle circulation pump
34: nozzle piping 36: nozzle
38: Vacuum pump 40: Outside circulation pump
42: outdoor side piping 44: outdoor side heat exchanger
46: Separate space 48: Outdoor ventilation fan
50: Insulation

Claims (8)

A case having a discharge space formed with a separate space surrounded by the insulating material so as to be partitioned from the inner space and having a discharge hole communicating with the inner space and the outside on one outer surface,
A pressure tank installed in an inner space of the case and hermetically sealed to the outside and having a first heating medium therein,
Pressure reducing means for reducing the pressure inside the pressure tank to a predetermined value,
An internal heat exchanger installed in the pressure tank and having a second heat medium which exchanges heat with the first heat medium,
An indoor heat exchanger installed in an internal space of the case and receiving a second heat medium flowing in the internal heat exchanger and performing heat exchange with air supplied to a space for air conditioning;
An indoor air blowing fan installed in the inner space for allowing air to flow through the discharge holes of the indoor heat exchanger and the discharge plate,
A nozzle for spraying the first heat medium inside the pressure tank to the surface of the internal heat exchanger,
And an outdoor heat exchanger installed in the separate space for receiving the first heat medium passed through the internal heat exchanger and exchanging heat with outdoor air.
delete The air conditioner according to claim 1, further comprising: a nozzle circulation pump for supplying the first heat medium to the nozzle; an indoor circulation pump for flowing the first heat medium between the internal heat exchanger and the indoor heat exchanger; And an outdoor side circulation pump for flowing the two heating medium.
delete The absorption type air conditioner according to claim 1, wherein a tray is provided in the lower portion of the internal heat exchanger in the gravity direction, and the first heat medium injected to the internal heat exchanger is collected by the nozzle.
The absorption type air conditioner according to claim 1, wherein the pressure reducing means is a fan or a vacuum pump for discharging the air inside the pressure tank.
The absorption type air conditioning apparatus according to any one of claims 1, 3, 5, and 6, wherein water is used for the first heating medium and the second heating medium.
The absorption type air conditioner according to claim 7, wherein a heater for supplying heat to the first heat medium is further provided in the pressure tank.

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