WO2014137094A1

WO2014137094A1 - Outdoor temperature sensitive heating and cooling apparatus

Info

Publication number: WO2014137094A1
Application number: PCT/KR2014/001550
Authority: WO
Inventors: 전종길; 김영철; 백이; 이동건
Original assignee: 대한민국(농촌진흥청장); 주식회사 티알엑서지
Priority date: 2013-03-06
Filing date: 2014-02-26
Publication date: 2014-09-12
Also published as: JP2016509196A; KR20140109762A; KR101465689B1; JP6161735B2

Abstract

An outdoor temperature sensitive heating and cooling apparatus according to the present invention comprises: a compressor (110) for compressing and exhausting a refrigerant; a load-side heat exchanger (120) connected to the compressor (110) by a first refrigerant main pipe (210); a liquid receiver (140) for storing a liquefied refrigerant, the liquid receiver being connected to the load-side heat exchanger (120) by a second refrigerant main pipe (220); a water tank (130) for housing the liquid receiver (140); a heat exchanger (150) for the water tank disposed in the water tank (130) and connected to the liquid receiver (140) by a third refrigerant main pipe (230); a latent heat exchanger (160) connected to the heat exchanger (150) for the water tank by a fourth refrigerant main pipe (240); a controller electrically connected to the latent heat exchanger (160); and an outdoor temperature sensing unit (170) connected to the controller, wherein the controller selectively controls a heat storage function or a cold storage function of the latent heat exchanger (160) by sensing the outdoor temperature measured by the outdoor temperature sensing unit (170).

Description

Outside temperature sensitive air conditioning unit

The present invention relates to an outside air temperature-sensitive air-conditioning apparatus, and more particularly, a load-side heat exchanger for directly maintaining a refrigerant flow passage and performing heat exchange directly to an object space requiring cooling or heating. The heat source is supplied and the heat source can be stably obtained to ensure that the heat source is responsive to the weather forecast and outside temperature. It relates to an outdoor temperature-sensitive air-conditioning device capable of cooling or heating an object.

Most commonly used energy sources are fossil fuels such as coal, petroleum, natural gas, or nuclear fuels. However, fossil fuels pollute the environment due to various pollutants generated during the combustion process, and nuclear fuels generate harmful substances such as water pollution and radioactivity, and these energy sources have a limited amount of reserves.

Therefore, in recent years, the development of alternative energy to replace this has been actively progressed. Among these alternative energies, research on natural energy such as wind, solar heat, solar light, geothermal heat, etc. has been conducted for a long time and practically installed cooling and heating devices using them. These natural energy have little effect on environmental pollution and climate change. While there is a merit that infinite energy can be obtained without a high energy density, it is a key factor in the development of natural energy technology to increase the density and convert it into a usable form due to the drawback of the extremely low energy density.

One of such natural energy technologies is known as a heat pump system that performs cooling and heating using geothermal heat as a heat source. Heat pump system using geothermal heat is a technology that uses heat exchanger to install heat exchanger to recover heat in the ground of 10 ~ 20 ℃ or discharge heat into the ground.

In general, as a heat source of a heat pump, an air heat source method of obtaining or discharging heat in the air, such as an air conditioner, and a water heat source method of discharging heat through a cooling tower are used. The use of geothermal sources has the advantage that the energy efficiency is very high compared to air heat sources.

In particular, the year-round air temperature in the areas where the four seasons are obviously changed greatly varies from -20 to 40 ℃, while the underground temperature is almost constant at 10-20 ℃ during the year below 5m underground.

Therefore, in the case of cooling in summer, the air heat source temperature is consumed a lot of power to discharge the cooling heat to 30 ℃ or more, while the geothermal heat source is smoothly discharged to 10 ~ 20 ℃ shows a high efficiency. On the contrary, in the case of heating in winter, the air heat source is difficult to supply the heat necessary for heating at the lowest temperature of -20 ° C, while the underground heat source is 10 to 20 ° C, which can stably supply the heating heat to the heat pump.

The geothermal heat pump system is known to have the highest energy efficiency among all air-conditioning technologies. Therefore, it is an essential technology in a situation where energy resources are scarce and energy costs are high.

In general, the heat pump system using the geothermal heat not only has to have a constant water temperature and geological characteristics but not a soft layer, and also requires a long construction time and high cost during installation, and requires a separate site space.

On the other hand, as a heat pump system using geothermal heat, domestic patent registration No. 10-0999400 (registered on December 2, 2010), domestic patent registration No. 10-1053825 (registered on July 28, 2011), and domestic patent registration No. 10-1190260 (2012.10) .05).

The prior art is a system that is operated directly regardless of the outside temperature, and also consists of two cycles of air conditioning and heating, and the basic system performs the process of cooling and heating according to the season, so that the energy efficiency is rapidly changed according to the outside temperature. It has a problem that is falling.

The present invention is to solve the problems of the prior art as described above, even in the state without using a coil-shaped heat exchanger and a four-way valve that can be used for both cooling and heating due to seasonal differences in summer and winter in the tank, Cooling and heating can be performed by a single flow, so it can be easily installed in a relatively small space, and installation cost can be reduced, and the remaining heat on the load side can be recovered and regenerated to increase efficiency according to system operation. It is intended to provide an improved new outside air temperature sensitive heating and cooling system.

In order to achieve the above object, the present invention provides an outdoor air temperature-sensitive air-conditioning apparatus having a load side heat exchanger connected to a compressor 110 for compressing and discharging a refrigerant, the compressor 110, and a first refrigerant main pipe 210. 120, a receiver 140 connected to the load-side heat exchanger 120 and the second refrigerant main pipe 220 to store the liquefied refrigerant, a tank 130 in which the receiver 140 is accommodated, and the tank ( 130 is disposed, and connected to the water tank heat exchanger 150 and the water tank heat exchanger 150 and the fourth refrigerant main pipe 240 connected to the receiver 140 and the third refrigerant main pipe 230. And a latent heat exchanger 160, a control unit electrically connected to the latent heat exchanger 160, and an outside temperature sensing unit 170 connected to the control unit, wherein the control unit is configured at the outside temperature sensing unit 170. The latent heat exchanger (1 60) is characterized in that to selectively control the heat storage or heat storage function.

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

The latent heat exchanger 160 may be a heat storage cooler 161, a solar heat plate, or a heat storage cooler 165 of a combination of solar panels.

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

The tank 130 includes a first tank 131 embedded in the ground and a second tank 132 accommodated in the first tank 131, wherein the first tank 131 and the second tank ( 132 may be preferably spaced a predetermined distance apart.

The cooling and heating device may be provided with pumping means for supplying or discharging water in the space between the first tank 131 and the second tank 132.

The air-conditioning device, the water tank 130 includes an underground coil 133 is embedded in the ground so as to receive the heat of the ground, the space in which water flows inside the underground coil 133 It may be desirable to form this.

In the summer cooling mode, it may be preferable that the flow of the refrigerant to the tank 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. It may be desirable.

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

In the heating mode, the refrigerant passes through the compressor 110, the load side heat exchanger 120, the receiver 140, the water tank heat exchanger 150, and the liquid separator 180 to the compressor 110. It may be desirable to enter.

When performing the heat storage or heat storage mode, it may be preferable that the flow of the refrigerant to the load side heat exchanger 120 and the receiver 140 is blocked.

In the heat storage or heat storage mode, the refrigerant may be introduced into the compressor 110 through the compressor 110, the water tank heat exchanger 150, the latent heat exchanger 160, and the liquid separator 180. have.

The auxiliary condensation heat exchange part 145 disposed on the second refrigerant main pipe 220 may further include, and the auxiliary condensation heat exchange part 145 may be disposed in the water tank 130.

As described above, the present invention provides a relatively small space by allowing the cooling and heating to be performed by a single flow of 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 reservoir. In addition, it can be easily installed and the installation cost can be reduced, and the remaining heat on the load side can be recovered and regenerated to reduce energy consumption due to system operation.

In addition, the present invention provides a heating and cooling device with efficiency and practicality by enabling the complete condensation of the refrigerant by the auxiliary heat exchanger to allow the overall efficiency to be increased.

1 is a schematic diagram of an outside air temperature-sensitive air conditioning device according to an embodiment of the present invention;

2 is an operation diagram when performing winter heating,

3 is an operation diagram when performing summer cooling,

4 is an operation diagram when in the heat storage mode for the heat storage or cooling for heating, and

5 is a system diagram showing a case where the water tank is installed in the ground in the air temperature-sensitive air-conditioning device according to another embodiment of the present invention.

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

The air temperature-sensing air-conditioning device of the present invention may be manufactured integrally or separately separated as needed. In addition, some components may be omitted depending on the form of use.

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

Hereinafter, with reference to the accompanying drawings will be described in detail the air temperature-sensitive air-conditioning device according to an embodiment of the present invention.

외기 온도 감응식 냉난방 장치의 제 1 실시예(100) First Embodiment 100 of an Outside Temperature Sensing and Heating Device

The outside temperature-sensitive air-conditioning and heating device 100 is a compressor 110 for compressing and discharging a refrigerant, a load side heat exchanger 120 and a load side heat exchanger 120 connected to the compressor 110 and the first refrigerant main pipe 210. To the second refrigerant main pipe 220 and to the receiver 140 storing the liquefied refrigerant, the tank 130 in which the receiver 140 is accommodated, the receiver 140 and the third refrigerant main pipe 230. An expansion valve 190 connected to the third heat exchanger unit 150 connected to the water tank 130, the receiver 140, and the third refrigerant main pipe 230 connecting the water tank heat exchanger 150, The sixth refrigerant main pipe while communicating with the fourth refrigerant main pipe 240 through the latent heat exchanger 160 connected to the water tank heat exchanger 150 and the fourth refrigerant main pipe 240 and the fifth refrigerant main pipe 250. Outside connected to the sixth refrigerant main pipe 260 of the present invention through the liquid separator 180 and the temperature sensing pipe 270 in communication with the compressor 110 through the 260. It includes a temperature sensing unit (170).

The load side heat exchanger 120 is provided such that the refrigerant flow passage and the water flow passage exchange heat with each other. The load side heat exchanger 120 may adopt a plate heat exchanger as an embodiment. The load-side heat exchanger 120 of the present invention may constitute a collection evaporator and a cooling condenser so as to easily evaporate and condense.

Water is stored in the tank (130). The tank 130 may be buried underground or installed on the ground. Meanwhile, rainwater storage tanks, living water tanks, digestive water tanks, sewage tanks, water purification tanks, and other various types of water tanks provided for energy use can be used as a combination.

The receiver 140 stores the liquefied refrigerant. The receiver 140 is provided in the tank 130 as an embodiment.

In addition, the water tank 130 is provided with a heat exchange unit 150 for the water tank. The tank heat exchanger 150 uses a coil heat exchanger.

The latent heat exchanger 160 includes a heat storage cooler 161 that can be used as a condenser, a solar heat plate, and a heat storage cooler 165 of a combination of solar panels. In the present invention, the heat storage cooler 161 may be used for cooling in summer, and the heat storage cooler 165 may be used for heating in winter.

Herein, the first to sixth refrigerant

main pipes

210, 220, 230, 240, 250, and 260 may represent a movement path of the refrigerant when the external temperature sensitive air conditioning apparatus 100 of the present invention is driven in a heating mode.

On the other hand, the refrigerant auxiliary pipes connecting the components and the refrigerant

main pipes

210, 220, 230, 240, 250, 260 constituting the air temperature-sensitive air-conditioning device 100 of the present invention can 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 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.

One end of the third refrigerant auxiliary pipe 330 is connected to the third refrigerant main pipe 230 and the other end thereof is 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 thereof is connected to the fourth refrigerant main pipe 240.

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

By the refrigerant circulation passage formed by the first to fifth refrigerant

auxiliary pipes

310, 320, 330, 340, and 350 as described above, the circulation flow and the heat storage flow of the refrigerant for cooling in summer are possible.

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 on / off valve electrically connected to a control unit, a flow meter, a pressure gauge, a thermometer, and the like. The number, interval, etc. can be changed.

The outside temperature sensing unit 170 is electrically connected to the latent heat exchanger 160 and the plurality of open / close valves disposed in the refrigerant main pipe and the refrigerant auxiliary pipe through the control unit. That is, the controller selectively operates the driving mode of any one of the heating mode, the cooling mode, and the heat storage mode by selectively providing the opening / closing signal to the plurality of opening / closing valves according to the temperature result measured from the outside temperature sensing unit 170.

The control unit causes the latent heat exchanger 160 to perform heat storage or heat storage according to the result of the outside temperature. Specifically, in the case of heating in winter, it is easier to acquire a heat source during the day than at night, and thus, a heat storage cooler having a solar panel or a solar panel composite using a temperature sensed by the outside temperature sensing unit 170. After the evaporation of the flowing refrigerant to store the heat stored in the coolant in the water tank 130 and to use for heating at night.

외기 온도 감응식 냉난방 장치의 제 2 실시예(100')Second Embodiment 100 'of an Outside Temperature Sensing Air Conditioning Unit

On the other hand, with reference to Figure 5 will be described in the air temperature-sensitive air-conditioning device 100 'according to another embodiment.

In the air temperature-sensitive air-conditioning apparatus 100 ', a water tank 130' is installed in the ground.

The tank 130 ′ includes a first tank 131 embedded in the ground and a second tank 132 disposed inside the first tank 131 spaced apart from the first tank 131 by a predetermined interval. do. Here, the space between the first tank 131 and the second tank 132 is defined as the heat conduction opening and closing part 131a. In such a structure, the water tank 130 ′ has a double tank structure having first and

second water tanks

131 and 132. In one embodiment, the heat conductive material accommodated in the second water tank 132 may have a structure surrounding both the outer wall and the bottom of the first water tank 131. In another embodiment, the water of the second tank 132 may be formed to surround only the outer wall of the first tank 131.

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

The thermally conductive material accommodated in the thermally conductive opening and closing portion 131a may be filled with different materials according to seasons. The thermally conductive material may be a material having excellent thermal insulation, such as air, in order to block the direct transfer of geothermal heat from the ground to the second tank 132 in summer, and the second tank 132 in the winter in the ground. It may be a relatively conductive material, such as water, so that it can be delivered to.

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

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

In the summer, the first tank 131 may be emptied using a pumping means, and the second tank 132 may block the geothermal heat so as not to receive the geothermal heat. As such, in summer, the water in the second tank 132 may be preferably cooled by blocking the water of the second tank 132 from receiving relatively high temperature geothermal heat. In the same principle, the water in the first tank 131 may be filled in winter using a pumping means, and the second tank 132 may receive geothermal heat through the first tank 131. As such, in winter, the water of the second tank 130 may be heated by receiving geothermal heat of relatively high temperature.

On the other hand, the water tank (130, 130 ') is provided with an underground coil 133 in a form buried in the ground to receive the heat of the ground better. The interior of the underground coil 133 has a space in which water in the

tanks

130 and 130 'can flow. Accordingly, the water in the

water tanks

130 and 130 'can effectively absorb the geothermal heat through the underground coil 133. In addition, the underground coil 133 is provided with an underground coil pump 132a so that water in the

water tanks

130 and 130 'circulates through the underground coil 133.

The underground coil pump 132a is mainly operated only in winter to allow the water of the

tanks

130 and 130 'to receive geothermal heat. In summer, the water of the

tanks

130 and 130 'is preferably not subjected to geothermal heat.

Meanwhile, the underground coil pump 132a may be operated to mix the water in the

water tanks

130 and 130 'by mixing the water in the

water tanks

130 and 130'.

외기 온도 감응식 냉난방 장치(100)의 난방 모드Heating mode of outside temperature sensitive air-conditioning device 100

Hereinafter, the heating mode of the outside air temperature sensitive air-conditioning apparatus 100 of the present invention will be described. In the heating mode, the change of refrigerant forms a circulation system of compression-> first condensation-> second condensation-> expansion-> evaporation-> compression.

The refrigerant gas of the high temperature and high pressure compressed by the compressor 110 flows into the refrigerant flow path of the load-side heat exchanger 120 after passing through the first refrigerant main pipe 210 and condenses 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 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. In particular, the refrigerant flows into the auxiliary heat exchange unit 145. At this time, the auxiliary condensation heat exchanger 145 completely condenses the remaining refrigerant that is not condensed in the refrigerant flow path of the load-side heat exchanger 120 (second condensation). In other words, the auxiliary condensation heat exchanger 145 releases heat to the water in the water tank 130. The refrigerant passing through the auxiliary condensation heat exchanger 145 is stored in the receiver 140.

As described above, the air temperature-sensitive air-conditioning and heating device 100 according to the present invention is capable of fully condensing the refrigerant by the heat exchange unit 145 for auxiliary condensation, thereby increasing the overall efficiency. In addition, the water of the water tank 130 may increase its constant temperature by the interaction between the water tank heat exchanger 150 and the auxiliary condensation heat exchanger 145.

The refrigerant of the receiver 140 is expanded by the expansion valve 190 on the third refrigerant main pipe 230 and then flows into the water tank heat exchange unit 150. The refrigerant introduced into the tank heat exchanger 150 absorbs heat from the water of the tank 130 while evaporating. That is, the water of the tank 130 is cooled.

The refrigerant passing through the water tank heat exchanger 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.

외기 온도 감응식 냉난방 장치(100)의 냉방 모드Cooling mode of the outside air temperature sensitive air conditioning unit 100

Next, the cooling mode of the outside air temperature-sensitive air-conditioning device 100 of the present invention will be described. In the cooling mode, the change of refrigerant forms the circulation system of compression-> first condensation-> second condensation-> expansion-> evaporation-> compression. However, the function at the load side heat exchanger 120 proceeds in the opposite manner to the heating mode. That is, the load-side heat exchanger 120 performs the condensation function in the heating mode but the evaporation 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 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, after entering the liquid separator 180 through the fourth refrigerant auxiliary pipe 340, the fourth refrigerant main pipe 240 and the fifth refrigerant main pipe 250, the compressor 110 through the sixth refrigerant main pipe 260. Flows into).

외기 온도 감응식 냉난방 장치(100)의 축열 및 축냉 모드Heat storage and cold storage mode of the outside air temperature-sensitive air conditioning unit 100

Next, the heat storage and the heat storage mode of the outside air temperature-sensitive air-conditioning device 100 of the present invention will be described.

In the heat storage mode, the refrigerant gas of the high temperature and high pressure compressed by the compressor 110 is transferred to the water tank heat exchange part 150 through the first refrigerant main pipe 210 and the third refrigerant main pipe 230. The refrigerant condensed in the water tank heat exchanger 150 is transferred to the latent 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 passes through the sixth refrigerant main pipe 260 to the compressor 110. Flows into. In the heat storage mode, as the latent heat exchanger 160, a heat storage cooler 165 having a solar plate or a combination of the solar plates may be preferable.

In the present invention, the heat condensation pressure is low because the water tank temperature on the heat source side is particularly low, so that the temperature of the heat source can be easily increased with little compression power.

Meanwhile, in the cold storage mode, the refrigerant gas compressed by the compressor 110 is transferred to the water tank heat exchange part 150 through the first refrigerant main pipe 210 and the third refrigerant main pipe 230. The refrigerant evaporated in the water tank heat exchanger 150 is transferred to the latent 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 through the fourth refrigerant main pipe 240 and the fifth refrigerant main pipe 250, and then passes through the sixth refrigerant main pipe 260 to the compressor 110. Flows into. In the cold storage mode, the latent heat exchanger 160 may be a cool storage cooler 161.

The outside air temperature-sensitive air-conditioning apparatus 100 of the present invention may implement three cycles of heating, cooling, and heat storage (heat storage) cycles by implementing the heat storage and heat storage latent heat cycles with the same refrigerant without using a separate secondary refrigerant. . Here, the change of the refrigerant in the heat storage and refrigerating cycle modes constitutes a circulation system of compression-> condensation-> expansion-> evaporation-> compression.

In general, in the conventional case, the temperature difference between the outside air temperature during winter and summer during the cooling and heating cycles is about 20 ° C. on average, but the natural energy of the temperature difference is not sufficiently utilized. In order to maintain the evaporation of the refrigerant by installing a heat exchanger so that the refrigerant evaporates well at a place where the outside temperature is high, the energy of the light, or the waste heat source is high during the daytime, the refrigerant is stored in a water tank after compression, Make the best use of natural energy by using it as an evaporative heat source. This can increase your grade factor and efficiency.

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

Heating load in the heating mode can be made by the above equation, wherein the heat of evaporation (70%) is the natural energy obtained by evaporation of the refrigerant itself through the water of the tank 130, the heat of compression (30%) is actually Since the energy used, if the refrigerant can continuously evaporate during heating, energy can be saved by 70%. Therefore, it can be said that securing a stable evaporation heat source is the most important, and if the securing of the evaporation heat source is secured above a certain condition, energy saving can be more than 70%.

On the other hand, in summer, in order to secure a cooling heat source, a heat exchanger is installed to condense the refrigerant in a water tank at a location where the outside temperature is low at night, the energy density of light is low, or the waste cooling heat source is large. After cooling, by using it as a cooling heat source during the load-side operating time, the same effect as in heating can be obtained.

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

In the cooling mode, the cooling load may be achieved by the above equation. In cooling, the condensation heat source may be the most important since lowering the condensation temperature (100%) of the refrigerant in the latent heat exchanger 160 makes efficient use of energy. Can be.

As described above, since the daily average temperature difference is maintained at about 20 ° C in winter and summer, the temperature difference is well sensed so that the latent heat exchanger 160 performs the evaporation or condensation process and then accumulates or accumulates in the water tank 130. By supplying heat during the use time of the load-side heat exchanger 120, it is possible to implement a cooling and heating system that effectively utilizes natural energy.

The present invention can be characterized in that it can be operated at any time in response to the outside temperature and various thermal properties without being greatly influenced by solar light energy.

The load-side heat exchanger 120 of the present invention may constitute a collection evaporator and a cooling condenser so as to easily evaporate and condense.

While preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described specific embodiments. That is, those skilled in the art to which the present invention pertains can make many changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications are possible. Equivalents should be considered to be within the scope of the present invention.

Claims

A compressor 110 for compressing and discharging the 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 a liquefied refrigerant;

A water tank 130 in which the receiver 140 is accommodated;

A water tank heat exchanger (150) disposed in the water tank (130) and connected to the fluid receiver (140) and the third refrigerant main pipe (230);

A latent heat exchanger (160) connected to the water tank heat exchanger (150) and the fourth refrigerant main pipe (240);

A controller electrically connected to the latent heat exchanger (160); And

An outside temperature sensing unit 170 connected to the control unit;

Including;

The controller is characterized in that for selectively controlling the heat storage or heat storage function of the latent heat exchanger 160 through the outside air temperature sensing measured by the outside air temperature sensing unit 170,

Air temperature-sensitive air conditioning unit.
The method of claim 1,

The control unit is characterized in that for controlling the at least one valve opening disposed in the refrigerant pipe including the first to fourth refrigerant main pipe,

Air temperature-sensitive air conditioning unit.
The method of claim 1,

The latent heat exchanger 160 is a heat storage cooler 161, a solar heat plate, or a heat storage cooler 165 of the combination of the solar plate, characterized in that,

Air temperature-sensitive air conditioning unit.
The method of claim 1,

The air conditioning unit,

Further comprising; expansion valve 190 is disposed on the third refrigerant main pipe 230 for connecting the receiver 140 and the heat exchange unit 150 for the water tank;

Air temperature-sensitive air conditioning unit.
The method according to any one of claims 1 to 4,

The tank 130 may include a first tank 131 embedded in the ground, a second tank 132 accommodated in the first tank 131, and a space between the first tank 131 and the second tank 132. Pumping means for supplying or discharging water in the space, and underground coils 133 embedded in the ground to receive heat from the ground,

The first water tank 131 and the second water tank 132 are spaced apart a predetermined distance, characterized in that a space in which water flows inside the underground coil 133 is formed,

Air temperature-sensitive air conditioning unit.
The method of claim 2,

In the summer cooling mode, the flow of the coolant to the water tank heat exchanger 150 is blocked, and in the cooling mode, the coolant is the compressor 110, the latent heat exchanger 160, the receiver 140, and the load side. Characterized in that introduced into the compressor 110 through the heat exchanger 120 and the liquid separator 180,

Air temperature-sensitive air conditioning unit.
The method of claim 2,

In the winter heating mode, the flow of the refrigerant to the latent heat exchanger 160 is blocked, the refrigerant in the heating mode is the compressor 110, the load side heat exchanger 120, the receiver 140, the water tank Characterized in that introduced into the compressor 110 through the heat exchange unit 150 and the liquid separator 180,

Air temperature-sensitive air conditioning unit.
The method of claim 2,

When performing the heat storage or heat storage mode, the flow of the refrigerant to the load-side heat exchanger 120 and the receiver 140 is blocked, and in the heat storage or heat storage mode, the refrigerant flows through the compressor 110 and the water tank heat exchanger. The unit 150, characterized in that flowing into the compressor 110 through the latent heat exchanger 160 and the liquid separator 180,

Air temperature-sensitive air conditioning unit.
The method of claim 1,

Further comprising: a secondary heat exchanger for condensation 145 disposed on the second refrigerant main pipe (220),

The auxiliary condensation heat exchanger 145 is characterized in that disposed in the water tank 130,

Air temperature-sensitive air conditioning unit.