KR20140109762A - Apparatus for cooling and heating for sensing the temperature of outside - Google Patents

Abstract

An outdoor temperature sensing-type cooling and heating apparatus according to the present invention comprises a compressor (110) compressing and discharging a refrigerant; a load side heat exchanger (120) connected to the compressor (110) and a first refrigerant main pipe (210); a liquid receiver (140) connected to the load side heat exchanger (120) and a second refrigerant main pipe (220), and storing the liquefied refrigerant; a water tank (130) housing the liquid receiver (140); a water tank heat exchange part (150) arranged in the water tank (130), and connected to the liquid receiver (140) and a third refrigerant main pipe (230); a latent heat exchanger (160) connected to the water tank heat exchange part (150) and a fourth refrigerant main pipe (240); a control part electrically connected to the latent heat exchanger (160); and an outdoor temperature sensing unit (170) connected to the control part, wherein the control part selectively control the heat storage function or the cold storage function of the latent heat exchanger (160) through the sensing of outdoor temperature sensed by the outdoor temperature sensing unit (170). According to the present invention, the outdoor temperature sensing-type cooling and heating apparatus is capable of performing cooling and heating by the single flow of the refrigerant, thereby simplifying the structure of the outdoor temperature sensing-type cooling and heating apparatus. In addition, the outdoor temperature sensing-type cooling and heating apparatus is capable of storing heat by recovering and storing remaining heat from a load side, thereby reducing energy consumption of operating the system.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cooling /

More particularly, the present invention relates to a refrigerant flow path and a refrigerant flow path, in which a refrigerant flow path is constantly maintained and a load side heat exchanging part for performing heat exchange directly to a target space requiring cooling or heating, Heat exchange is performed and the heat source is secured when the natural energy density is the highest among 24 hours per day by responding to the weather forecast and the outside temperature so that the heat source can be stably obtained even on the heat source side. The present invention relates to an outside air temperature-responsive air conditioner capable of performing cooling or heating on an object.

Generally, fossil fuels such as coal, petroleum, natural gas and the like are used as energy sources, or nuclear fuel is used in most cases. However, fossil fuels pollute the environment due to various pollutants generated in the combustion process, and nuclear fuel has a disadvantage that harmful substances such as water pollution and radioactivity are generated, and these energy sources have a limited amount of reserves.

Therefore, in recent years, development of alternative energy that can substitute this has been actively carried out. Among these alternative energies, research on natural energy such as wind power, solar heat, and geothermal energy has been carried out for a long time, and a cooling and heating device using the natural energy has been installed and used. When these natural energy has little influence on environmental pollution and climate change In addition, it has the advantage of obtaining infinite energy, but it is a crucial factor in the development of natural energy technology to increase the density and convert it into a usable form due to the drawback that the energy density is very low.

One of the natural energy technologies is known as a heat pump system for cooling and heating by using geothermal heat as a heat source. A heat pump system using geothermal heat is a technology that uses a heat pump as a heat source for a heat pump by recovering heat in the ground at a temperature of 10 to 20 ° C or installing a heat exchanger to discharge heat to the ground.

Generally, the heat source of a heat pump is an air source such as an air conditioner, an air heat source method for obtaining or discharging heat in the air, and a hydrothermal source method for discharging heat through a cooling tower. The use of a geothermal source has the advantage that the energy efficiency is much higher than the air heat source.

Especially, the annual atmospheric temperature of the four seasons varies greatly from -20 ℃ to 40 ℃, while the ground temperature is almost constant at 10 ~ 20 ℃ during the year when the underground temperature is below 5m.

Therefore, in the case of cooling in the summer, the air heat source consumes a large amount of power to discharge the cooling heat at a temperature of 30 ° C or higher, while the geothermal circulation produces high efficiency by discharging heat to 10 ~ 20 ° C smoothly. On the other hand, when heating in winter, the air heat source is difficult to supply the heat required for heating at the lowest temperature of -20 ° C, while the ground heat source is as high as 10 ~ 20 ° C, so that the heating heat can be supplied to the heat pump stably.

Such a heat pump system using geothermal energy is known to be the most energy efficient among all the heating and cooling technologies. Therefore, it is a necessary technology in a situation where energy resources are insufficient and energy cost is high.

Generally, a heat pump system using geothermal heat must have a certain water temperature and geologic characteristics rather than a soft ground layer at the time of installation, and it takes a long period of time to install the plant and costs a lot, and a separate site space must be secured.

As a heat pump system using geothermal heat, there are domestic patent registration No. 10-0999400 (registered on December 2, 2010), domestic patent registration No. 10-1053825 (registered on July 7, 2011), domestic patent registration No. 10-1190260 (2012.10 .05).

The above-mentioned prior arts are systems which are operated directly regardless of the outside air temperature, and are composed of two cycles of cooling and heating. The basic system performs the process of cooling and heating according to the season so that the energy efficiency is rapidly Has a falling problem.

Domestic Patent Registration No. 10-0999400 (Registered on December 2, 2010) Domestic patent registration No. 10-1053825 (registered on July 28, 2011) Domestic patent registration No. 10-1190260 (Registered on May 10, 2012)

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems of the prior art and to provide a refrigerator and a refrigerator in which even if a coil type heat exchanging unit and a four-way valve, which can be used for both cooling and heating, So that it can be installed easily in a relatively small space, and the installation cost can be reduced. In addition, the efficiency of the system operation can be improved by collecting and storing the remaining heat on the load side And a new outdoor air temperature-responsive cooling / heating apparatus.

In order to achieve the above object, the present invention provides an outdoor air temperature-responsive cooling / heating apparatus comprising a compressor (110) for compressing and discharging refrigerant, a load side heat exchanger (110) connected to the compressor A receiver 130 connected to the load side heat exchanger 120 and a second refrigerant main pipe 220 for storing liquefied refrigerant, a water tank 130 housing the receiver 140, And a water heat exchanging part 150 connected to the receiver 140 and the third refrigerant main pipe 230 and connected to the water heat exchanging part 150 and the fourth refrigerant main pipe 240, The control unit includes a latent heat exchanger 160, a control unit electrically connected to the latent heat heat exchanger 160, and an outside air temperature sensing unit 170 connected to the control unit. By the sensed outdoor air temperature, the latent heat heat exchanger 1 60 of the heat accumulation or cold accumulation function.

The control unit may control one or more on / off valves disposed in refrigerant pipes including the first to fourth refrigerant main pipes.

It is preferable that the latent heat exchanger 160 is a heat storage cooler 165 that is a combination of a heat storage cooler 161 or a solar thermal plate.

The cooling and heating apparatus may further include an expansion valve 190 disposed on the third refrigerant main pipe 230 connecting the receiver 140 and the water heat exchanger 150. [

The water tank 130 includes a first water tank 131 buried in the ground and a second water tank 132 accommodated in the first water tank 131. The first water tank 131 and the second water tank 131 132 may be spaced apart a predetermined distance.

It is preferable that the cooling and heating apparatus is provided with pumping means capable of supplying or discharging water in the space between the first water tank 131 and the second water tank 132. [

In the cooling / heating apparatus, the water tank (130) includes a ground coil (133) embedded in the ground so as to receive heat in the ground, and a space May be preferably formed.

In the summer cooling mode, it is preferable that the flow of the refrigerant to the water heat exchanger 150 is blocked.

In the cooling mode, the refrigerant flows into the compressor 110 through the compressor 110, the latent heat exchanger 160, the receiver 140, the load side heat exchanger 120, and the liquid separator 180 May be preferred.

In the winter heating mode, it is preferable that the flow of the refrigerant to the latent heat heat exchanger 160 is blocked.

In the heating mode, the refrigerant flows to the compressor 110 through the compressor 110, the load side heat exchanger 120, the receiver 140, the water heat exchanger 150, and the liquid separator 180 May be desirable.

It may be preferable that the flow of the refrigerant to the load side heat exchanger 120 and the receiver 140 is blocked when the heat storage or the cold storage mode is performed.

It is preferable that the refrigerant is introduced into the compressor 110 through the compressor 110, the water heat exchanger 150, the latent heat exchanger 160 and the liquid separator 180 in the heat storage or cooling mode have.

The auxiliary condensation heat exchanger 145 may be disposed in the water tank 130. The auxiliary condensation heat exchanger 145 may be disposed on the second refrigerant main pipe 220. [

As described above, according to the present invention, it is possible to perform cooling and heating by a single flow of a refrigerant without using a coil type heat exchanger and a four-way valve that can be used for both cooling and heating in a single water tank, So that the installation cost can be reduced. In addition, the remaining heat on the load side is recovered and stored, thereby reducing the energy consumption due to system operation.

In addition, the present invention provides a cooling and heating apparatus having efficiency and practicality by allowing the refrigerant to be completely condensed by the heat exchanging unit for auxiliary condensation so that the overall efficiency is increased.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an outdoor air temperature-responsive cooling / heating apparatus according to an embodiment of the present invention;
Fig. 2 is an operation diagram for performing winter heating,
Fig. 3 is an operation diagram in the case of performing summer cooling,
Fig. 4 is an operation diagram for a heat storage for heating or a cooling and cooling mode for cooling, and
5 is a schematic diagram showing a case where a water tank is installed in the ground in an outdoor air temperature-responsive cooling / heating apparatus according to another embodiment of the present invention.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. The embodiments described are provided by way of illustration for the purposes of illustration and are not intended to limit the scope of the invention.

The outdoor temperature-responsive cooling / heating apparatus according to the present invention can be manufactured as an integral type or can be manufactured separately as required. In addition, some components may be omitted depending on the usage pattern.

The refrigerant main pipe and the refrigerant auxiliary pipe arranged in the present invention are collectively referred to as a refrigerant pipe.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an outside air temperature-responsive cooling / heating apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The first of the outdoor temperature-responsive cooling / Example (100)

The outdoor air temperature-dependent cooling / heating apparatus 100 includes a compressor 110 for compressing and discharging a refrigerant, a load side heat exchanger 120 connected to the compressor 110 through a first refrigerant main pipe 210, a load side heat exchanger 120, A water tank 130 in which the receiver 140 is accommodated, a receiver 140 and a third refrigerant main pipe 230 connected to the second refrigerant main pipe 220 and storing liquefied refrigerant, An expansion valve 190 disposed on the third refrigerant main pipe 230 connecting the receiver 140 and the water heat exchanging unit 150, a water heat exchanger 150 disposed in the water tank 130, The second coolant main pipe 240 communicates with the fourth coolant main pipe 240 through the latent heat exchanger 160 and the fifth coolant main pipe 250 connected to the water heat exchanger 150 and the fourth coolant main pipe 240, (Not shown) connected to the sixth refrigerant main pipe 260 of the present invention through a liquid separator 180 and a temperature sensing duct 270 communicating with the compressor 110 through the first refrigerant pipe 260 It includes a temperature sensing unit (170).

The load side heat exchanger (120) is arranged to exchange heat between the refrigerant flow path and the water flow path. The load side heat exchanger 120 may be a plate heat exchanger as an embodiment. The load side heat exchanger 120 of the present invention can constitute a heat collecting evaporator and a cold condenser so that evaporation and condensation can be easily performed.

Water is stored in the water tank 130. The water tank 130 may be buried in the ground or may be installed on the ground. On the other hand, various kinds of water tanks provided in the rainwater storage tank, living water tank, digestion tank, sewage tank, water tank, and other energy use sites can be utilized.

Liquid refrigerant is stored in the receiver (140). The receiver (140) is provided inside the water tank (130) as an embodiment.

In addition, the water tank 130 is provided with a water heat exchanger 150. The water-cooling heat exchanger (150) uses a coil-type heat exchanger.

The latent heat heat exchanger (160) includes a condenser (161) that can be used as a condenser and a heat storage cooler (165) that is a combination of a solar panel. In the present invention, the cooling / shaking cooler 161 is used for cooling in summer, and the heat storage cooler 165 is used for heating in winter.

Here, the first to sixth refrigerant main pipes 210, 220, 230, 240, 250, and 260 may represent a refrigerant traveling path when the outdoor air temperature-dependent cooling / heating apparatus 100 of the present invention is driven in a heating mode.

Meanwhile, refrigerant auxiliary pipes connecting the refrigerant main pipes 210, 220, 230, 240, 250, and 260 to the components constituting the outdoor air temperature-dependent cooling / heating apparatus 100 according to the present invention may be used.

One end of the first refrigerant auxiliary pipe 310 is connected to the first refrigerant main pipe 210 and the other end thereof is connected to the latent heat heat exchanger 160.

One end of the second refrigerant auxiliary pipe 320 is connected to the latent heat exchanger 160 and the other end thereof is connected to the inlet of the receiver 140.

The third refrigerant auxiliary pipe 330 has one end connected to the third refrigerant main pipe 230 and the other end connected to the first refrigerant main pipe 210.

One end of the fourth refrigerant auxiliary pipe (340) is connected to the load side heat exchanger (120) and the other end is connected to the fourth refrigerant main pipe (240).

One end of the fifth refrigerant auxiliary pipe 350 is connected to the water heat exchanging part 150 and the other end is connected to the latent heat heat exchanger 160.

The circulation flow and the heat accumulation flow of the refrigerant for the summer cooling can be performed by the refrigerant circulation channels formed by the first to fifth refrigerant auxiliary pipes 310, 320, 330, 340 and 350.

The first to sixth refrigerant main pipes 210, 220, 230, 240, 250 and 260 and the first to fifth refrigerant auxiliary pipes 310, 320, 330, 340 and 350 may be provided with an opening / closing valve, a flow meter, a pressure gauge, a thermometer, The number and spacing can be changed.

The outdoor air temperature sensing unit 170 is electrically connected to the latent heat heat exchanger 160 and the plurality of opening / closing valves disposed in the refrigerant main pipe and the refrigerant auxiliary pipe through the control unit. That is, the control unit selectively activates the heating mode, the cooling mode, and the thermal storage mode by providing the opening / closing signals selectively to the plurality of opening / closing valves according to the temperature result measured from the outdoor air temperature sensing unit 170.

The control unit causes the latent heat heat exchanger (160) to heat or cool according to the outside air temperature result. More specifically, when heating is performed during the winter season, it is easier to obtain a heat source during the day than at night. Therefore, a heat storage cooler 165 is used in which the solar panel is combined with the temperature sensed by the ambient temperature sensing unit 170 So that the heat stored in the refrigerant is stored in the water tank 130 and used for heating at night.

The second of the outdoor air temperature-responsive cooling / Example (100 ')

Referring to FIG. 5, an outdoor air temperature-responsive cooling / heating apparatus 100 'according to another embodiment will be described.

The outdoor air temperature-responsive cooling / heating apparatus 100 'has a water tank 130' installed in the ground.

The water tank 130 includes a first water tank 131 buried in the ground and a second water tank 132 disposed in the first water tank 131 in a state spaced apart from the first water tank 131 by a predetermined distance do. Here, the space between the first water tank 131 and the second water tank 132 is defined as the heat conduction opening / closing part 131a. In this structure, the water tank 130 'is a dual tank structure having the first and second water tanks 131 and 132. In one embodiment, the thermal conductive material contained in the second water tank 132 may be configured to surround both the outer wall and the bottom of the first water tank 131. The water in the second water tank 132 may be formed so as to surround only the outer wall of the first water tank 131 as another embodiment.

The first water tank 131 receives geothermal heat directly from the ground. The second water tank (132) receives geothermal heat through the first water tank (131).

The thermal conductive material accommodated in the thermal conductive switch 131a may be filled with another material depending on the season. The thermal conductive material may be a material having excellent heat insulation properties such as air to prevent the geothermal heat from the ground directly from being transmitted to the second water tank 132. In the winter, Such as water, so that it can be delivered to the cathode.

When the thermal conductive material accommodated in the heat conduction opening and closing part 131a is water, a pumping means capable of emptying or filling water in the first water tank 131 may be provided. That is, the first water tank 131 and the second water tank 132 can perform heat transfer through the water filled through the pumping means.

Specifically, when the water in the first water tank 131 is filled, the second water tank 132 receives the geothermal heat through the water in the first water tank 131. However, when the water in the first water tank 131 becomes empty, (132) is in a state of being insulated from the geothermal heat.

By using the pumping means, the water of the first water tank 131 can be emptied in the summer, and the geothermal heat can be cut off so that the second water tank 132 does not receive the geothermal heat. As described above, it is preferable that the water in the second water tank 132 is cooled as much as possible by blocking the water of the second water tank 132 from receiving the geothermal heat of relatively high temperature during summer. In the same principle, the water in the first water tank 131 can be filled in the winter by pumping means, and the second water tank 132 can receive the geothermal heat through the first water tank 131. As described above, it is preferable that the water in the second water tank 130 is heated by receiving the relatively high temperature of the water in the second water tank 132 during the winter.

Meanwhile, the water tanks 130 and 130 'are provided with an underground coil 133 so as to be buried in the ground so as to better receive the heat of the earth. The inside of the ground coil 133 is formed with a space through which water in the water tanks 130 and 130 'can flow. Therefore, the water in the water tanks 130 and 130 'can effectively absorb the geothermal heat through the ground coil 133. The underground coil 133 is provided with a ground coil pump 132a so that the water in the water tanks 130 and 130 'circulates through the ground coil 133.

The underground coil pump 132a is mainly operated only in winter so that the water in the water tanks 130 and 130 'can receive the geothermal heat. In summer, it is preferable that the water in the water tanks 130 and 130 'is not subjected to geothermal heat.

Meanwhile, the underground coil pump 132a can be operated to mix the water in the water tanks 130 and 130 'evenly by mixing the water in the water tanks 130 and 130'.

Heating of the outside air temperature-responsive cooling / heating apparatus (100) mode

Hereinafter, the heating mode of the outdoor air temperature-responsive cooling / heating apparatus 100 of the present invention will be described. In the heating mode, the refrigerant changes into a circulation system of compression -> first condensation -> second condensation -> expansion -> evaporation -> compression.

The high-temperature and high-pressure refrigerant gas compressed by the compressor 110 flows into the refrigerant flow path of the load side heat exchanger 120 through the first refrigerant main pipe 210 and is condensed first (first condensation). That is, the load side heat exchanger 120 functions as a condenser, and the refrigerant passing through the refrigerant flow path of the load side heat exchanger 120 discharges heat to the water passing through the water flow path of the load side heat exchanger 120.

The refrigerant passing through the refrigerant flow path of the load side heat exchanger (120) passes through the second refrigerant main pipe (220), and in particular, the refrigerant flows into the heat exchanging part (145) for the auxiliary condensation. At this time, the auxiliary condensation heat exchanger 145 completely condenses the remaining refrigerant that has not condensed in the refrigerant flow path of the load side heat exchanger 120 (second condensation). That is, the heat exchanging part 145 for auxiliary condensation discharges heat to the water in the water tank 130. The refrigerant passing through the heat exchanging unit 145 for auxiliary condensation is stored in the receiver 140.

As described above, the refrigerant can be completely condensed by the heat exchanger 145 for auxiliary condensation in the outdoor air temperature-responsive cooling / heating apparatus 100 according to the present invention, thereby increasing the overall efficiency. The water in the water tank 130 can increase its thermostability by the interaction of the water-cooling heat exchanger 150 and the auxiliary condensation heat exchanger 145.

The refrigerant in the receiver (140) is expanded in the expansion valve (190) on the third refrigerant main pipe (230) and then flows into the water heat exchanger (150). The refrigerant flowing into the water-heating heat exchanger (150) absorbs heat from the water of the water tank (130) while evaporating. That is, the water in the water tank 130 is cooled.

The refrigerant passing through the water heat exchanging unit 150 flows into the liquid separator 180 through the fourth and fifth refrigerant main pipes 240 and 250 and then flows into the compressor 110 through the sixth refrigerant main pipe 260.

The cooling of the outdoor air temperature-responsive cooling / heating apparatus (100) mode

Next, the cooling mode of the outdoor air temperature-responsive cooling / heating apparatus 100 of the present invention will be described as follows. The change of the refrigerant in the cooling mode becomes a circulation system of compression -> first condensation -> second condensation -> expansion -> evaporation -> compression as in the heating mode. However, the function of the load side heat exchanger 120 is reversed to that of the heating mode. That is, the load side heat exchanger 120 performs the condensing function in the heating mode, but performs the evaporating function in the cooling mode.

In the cooling mode, the high-temperature and high-pressure refrigerant gas compressed by the compressor 110 is transferred to the latent heat heat exchanger 160 via the first refrigerant main pipe 210 and the first refrigerant auxiliary pipe 310. The refrigerant condensed in the latent heat exchanger 160 is stored in the receiver 140 via the second refrigerant auxiliary pipe 320 and the second refrigerant main pipe 220. Thereafter, evaporation is performed in the load side heat exchanger 120 via the third refrigerant auxiliary pipe 330 and the third refrigerant main pipe 230. Next, the refrigerant is introduced into the liquid separator 180 through the fourth refrigerant auxiliary pipe 340, the fourth refrigerant main pipe 240 and the fifth refrigerant main pipe 250, and then flows through the sixth refrigerant main pipe 260 to the compressor 110 ).

The heat storage of the outside air temperature responsive cooling / heating apparatus 100 and Cooling mode

Next, the heat storage and cooling mode of the outdoor air temperature-responsive cooling / heating apparatus 100 according to the present invention will be described.

In the heat storage mode, refrigerant gas of high temperature and high pressure compressed by the compressor 110 is transferred to the water heat exchanger 150 through the first refrigerant main pipe 210 and the third refrigerant main pipe 230. The refrigerant condensed in the water heat exchanging unit 150 is transferred to the latent heat heat exchanger 160 via the fifth refrigerant auxiliary pipe 350. The refrigerant evaporated in the latent heat exchanger 160 flows into the liquid separator 180 through the fourth refrigerant main pipe 240 and the fifth refrigerant main pipe 250 and then flows into the compressor 110 through the sixth refrigerant main pipe 260. [ Lt; / RTI > The latent heat exchanger 160 in the heat storage mode may be preferably a heat storage cooler 165 in the form of a combination of a solar panel.

Since the temperature of the water tank on the heat source side is low during storage, the condensation pressure is lowered and the temperature of the heat source can be easily increased with a small compression power.

Meanwhile, in the condensing mode, the refrigerant gas compressed by the compressor 110 is transferred to the water heat exchanger 150 through the first refrigerant main pipe 210 and the third refrigerant main pipe 230. The refrigerant evaporated in the water-heating heat exchanger (150) is transferred to the latent heat heat exchanger (160) via the fifth refrigerant auxiliary pipe (350). The refrigerant condensed in the latent heat exchanger 160 flows into the liquid separator 180 via the fourth refrigerant main pipe 240 and the fifth refrigerant main pipe 250 and then flows into the compressor 110 through the sixth refrigerant main pipe 260. [ Lt; / RTI > In the hot-water cooling mode, the cold-storage cooler 161 may be preferable as the latent heat exchanger 160.

The outdoor air temperature-responsive cooling / heating apparatus 100 according to the present invention can realize a three-cycle heating, cooling and storage (cooling) cycle by implementing the heat storage and cold storage latent heat cycles with the same refrigerant without using a separate secondary refrigerant . Here, refrigerant changes in the heat storage and cooling cycle modes constitute a circulation system of compression -> condensation -> expansion -> evaporation -> compression.

In general, in the conventional case, the difference in the outside air temperature between day and night during the winter season and the summertime in the cooling and heating cycle is about 20 ° C on average, but the natural energy of the temperature difference is not sufficiently utilized. On the other hand, A heat exchanger is installed to evaporate the refrigerant so that the refrigerant evaporates well at a place where the outside air temperature is high in the daytime, the light energy is high or the waste heat source is large, and after storing in the water tank after compression, Utilizing it as an evaporative heat source makes it possible to utilize natural energy as much as possible. This can improve grading and efficiency.

Heating load (heat of condensation (100%)) = heat of compression (30%) + heat of evaporation (70%)

In the heating mode, the heating load can be calculated according to the above equation. Here, the evaporation heat amount (70%) is the natural energy obtained by evaporating the refrigerant itself through the water in the water tank 130, Because it is used energy, it can save 70% energy when the refrigerant can be continuously evaporated at the time of heating. Therefore, it is most important to secure a stable source of evaporation heat, and if the amount of evaporation heat is secured above a certain level, energy can be saved by more than 70%.

On the other hand, in summer, in order to secure a cooling heat source, a heat exchanger is installed so that the outside air temperature is low at night, the energy density of light is low, or the refrigerant is well condensed at a place where there is a lot of waste heat source. The same effect as in the case of heating can be obtained by using the heat source as a cooling heat source during the use time of the load side after cooling down the shaft.

Cooling load (evaporation heat amount (70%)) = condensation heat amount (100%) - compression heat amount (30%)

In the cooling mode, the cooling load can be calculated according to the above-mentioned equation. In the cooling mode, lowering the condensation temperature (100%) of the refrigerant in the latent heat heat exchanger 160 can effectively use the energy. .

As described above, since the daily average temperature difference is maintained at about 20 ° C in the winter season and the summer season, the latent heat heat exchanger 160 performs the evaporation or condensation process in response to the temperature difference, A cooling and heating system that effectively utilizes natural energy can be realized by supplying the heat to the use time of the load side heat exchanger 120. [

The present invention can be characterized in that it can be operated at any time regardless of the ambient light temperature and various thermal property values without being greatly dependent on the sunlight energy.

The load side heat exchanger 120 of the present invention can constitute a heat collecting evaporator and a cold condenser so that evaporation and condensation can be easily performed.

Since the temperature of the water tank on the heat source side is low during storage, the condensation pressure is lowered and the temperature of the heat source can be easily increased with a small compression power.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that numerous modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims. And equivalents should also be considered to be within the scope of the present invention.

100: Ambient temperature-dependent cooling / heating unit
110: compressor
120: Load side heat exchanger
133: aquarium
140: Receiver
150: Water heat exchanger
160: Latent heat exchanger
170: Ambient temperature sensing unit
180: liquid separator
190: Expansion valve

Claims (9)

A compressor 110 for compressing and discharging refrigerant;
A load side heat exchanger (120) connected to the compressor (110) and the first refrigerant main pipe (210);
A receiver (140) connected to the load side heat exchanger (120) and the second refrigerant main pipe (220) to store liquefied refrigerant;
A water tank 130 in which the receiver 140 is accommodated;
A water heat exchanger (150) disposed in the water tank (130) and connected to the receiver (140) and the third refrigerant main pipe (230);
A latent heat exchanger 160 connected to the water heat exchanger 150 and the fourth refrigerant main pipe 240;
A control unit electrically connected to the latent heat heat exchanger 160; And
An outside air temperature sensing unit 170 connected to the control unit;
/ RTI >
Wherein the control unit selectively controls the heat accumulation or cold accumulation function of the latent heat heat exchanger (160) through the ambient temperature sensed by the ambient air temperature sensing unit (170)
Outdoor air temperature controlled air conditioning system.
The method according to claim 1,
Wherein the controller controls at least one on-off valve disposed in a refrigerant pipe including the first to fourth refrigerant main pipes.
Outdoor air temperature controlled air conditioning system.
The method according to claim 1,
Characterized in that the latent heat heat exchanger (160) is a heat storage cooler (165) in the form of a condenser (161) or a solar heat plate.
Outdoor air temperature controlled air conditioning system.
The method according to claim 1,
The heating /
And an expansion valve (190) disposed on the third refrigerant main pipe (230) connecting the receiver (140) and the water heat exchanger (150)
Outdoor air temperature controlled air conditioning system.
5. The method according to any one of claims 1 to 4,
The water tank 130 includes a first water tank 131 buried in the ground, a second water tank 132 accommodated in the first water tank 131, and a second water tank 132 disposed between the first water tank 131 and the second water tank 132. [ A pumping means capable of supplying or discharging water in the space, and a ground coil 133 of the type buried in the ground so as to receive heat in the ground,
Wherein the first water tank (131) and the second water tank (132) are spaced apart from each other by a predetermined distance, and a space through which water flows in the ground coil (133) is formed.
Outdoor air temperature controlled air conditioning system.
3. The method of claim 2,
In the cooling mode in the summer, the flow of the refrigerant to the water-heating heat exchanger 150 is interrupted, and in the cooling mode, the refrigerant passes through the compressor 110, the latent heat exchanger 160, the receiver 140, Is introduced into the compressor (110) through the heat exchanger (120) and the liquid separator (180).
Outdoor air temperature controlled air conditioning system.
3. The method of claim 2,
In the winter heating mode, the flow of the refrigerant to the latent heat heat exchanger 160 is interrupted, and in the heating mode, the refrigerant is supplied to the compressor 110, the load side heat exchanger 120, the receiver 140, Is introduced into the compressor (110) through the heat exchanger (150) and the liquid separator (180).
Outdoor air temperature controlled air conditioning system.
3. The method of claim 2,
The flow of the refrigerant to the load side heat exchanger 120 and the receiver 140 is blocked and the refrigerant is discharged from the compressor 110, Is introduced into the compressor (110) through the heat exchanger (150), the latent heat heat exchanger (160), and the liquid separator (180)
Outdoor air temperature controlled air conditioning system.
The method according to claim 1,
And a heat exchanger (145) for auxiliary condensation disposed on the second refrigerant main pipe (220)
Characterized in that the auxiliary condensation heat exchanger (145) is arranged in the water tank (130)
Outdoor air temperature controlled air conditioning system.

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