KR100975864B1 - The cooling and heating system using solar and wind power hybrid system - Google Patents

Abstract

The present invention relates to a cold and heating system for heating or cooling air by using wind and solar heat. In particular, it is a solar heat, wind hybrid cooling, heating system that can maintain the cooling and heating by operating the absorption type refrigeration unit using the heat source and solar heat produced by operating the heater by the wind power.

Heaters, Wind Power, Electric Power, Absorption Chillers, Condensers, Regenerators, Evaporators

Description

The cooling and heating system using solar and wind power hybrid system}

The present invention relates to a cold and heating system for heating or cooling air by using wind and solar heat. In particular, it is a solar heat, wind hybrid cooling, heating system that can maintain the cooling and heating by operating the absorption type refrigeration unit using the heat source and solar heat produced by operating the heater by the wind power.

Representative natural energy is solar heat and wind caused by the sun. Although natural energy is abundant on the earth, most of the energy is not properly utilized. This enormous amount of energy has been developed to make human life more convenient. The present invention has also been developed as part of this attempt.

The present invention relates to a cold and heating system for heating or cooling air by using wind and solar heat. In particular, it is a solar, wind hybrid cooling, heating system to maintain the cooling and heating by operating the absorption chiller using a heat source and solar heat produced by operating the heater by wind power.

The present invention is a heat source supply device and a heat source for supplying a heat source consisting of a high-heat heater (BC) and a solar collector 20 that operates using electricity produced by the wind power generator 10 as a solar, wind hybrid heating and cooling system. It comprises a hot water storage tank (BB) that is heated by using a heat source generated in the supply device and the absorption chiller (50) using the heat of the hot water storage tank (BB).

The heat source supply device is configured to be supplied auxiliary power separately from the wind power generator 10 so that it can be used auxiliary when wind power generation is difficult.

In addition, the heat source supply device, at least one heating heat source of the heating heat source of the heater (BC) through the wind generator 10, the heating heat source using the solar collector 20 and the heater (BC) using commercially available power is It is a method of operating the absorption refrigerator 50 alone or in combination.

The absorption chiller 50 is filled with an absorbent solution, and is a four-way valve having four gates so as to change a path of the regenerator 51 and water vapor heated by the circulation heater 52 of the hot water storage tank BB. (V) and the condenser 53 in communication with the condenser 53 and the condenser 53 in communication with the cooling tower 54 to condensed evaporated refrigerant connected to the tube and the regenerator 51 to achieve substantial cooling heat exchange. ) And an absorber (58) which communicates with the evaporator (55), collects refrigerant which has achieved heat exchange, and absorbs the absorbent which is separated from the regenerator (51). It is configured to include the refrigerant and the absorbent through the heating heat source to achieve a change in the state of the refrigerant to cool the internal temperature of the building in the summer and heating in the winter.

In the solar, wind hybrid cooling and heating system of the present invention, a heat exchanger 56 is provided between the regenerator 51 and the absorber 58 of the absorption chiller 50 to separately communicate the absorbent and the absorbent aqueous solution. Between the absorber 58 and the heat exchanger 56 of the absorption chiller 50, a transfer pump 57 is installed to pump the absorbent solution into the heat exchanger 56. The absorbent is lithium bromide or lithium chloride. And a selected one of ammonia can be used.

According to the hybrid cooling and heating system of the present invention, a heating heat source is produced using wind energy or solar energy discarded in the atmosphere, and an additional cooling is performed by operating an absorption chiller using the heating heat source. There is this.

In addition, according to the cooling system using the heat source supply device of the present invention, by using the solar heat and wind power continuously supplied, there is an advantage that the energy is always used as cooling or heating by minimizing the loss of thermal energy generated through this.

Electricity generated by wind power can not be used directly because it is very unstable according to the change of wind, and it is possible to use the generated power commercially only after attaching expensive power control device, but convert it into thermal energy as in the present invention. The advantage is that you can use wind energy at an economical price.

In addition, solar energy and wind energy are complementary. In other words, when the weather is clear and the wind is low, the solar energy is abundant, and when the weather is cloudy and windy, the wind energy is high. As described above, the present invention has an advantage of minimizing the input of auxiliary power by converting complementary energy into heat and using the mixture.

The present invention relates to a cooling system for cooling the inside of a building using various natural energy.

Hereinafter, the configuration and operation of the present invention will be described in detail with the drawings.

That is, as shown in Figure 1, the configuration constituting the present invention includes a wind generator 10 for producing electricity generated through the generator using the wind and a high-temperature heater (BC) operated by the electricity generated, There is a solar collector 20 for supplying high temperature heat together with the heater BC, and there is a hot water storage tank BB that is heated through the heat BC of the solar collector 20 and the high temperature heater BC. In addition, there is an absorption chiller 50 which is operated as a circulation heater 52 of a hot water storage tank BB which receives a heat source through the heat of the heater BC and the solar collector 20. Therefore, these are combined to form a heat source supply device consisting of heating heat temperature of the heating heat temperature of the heater (BC) and the solar collector 20 through the wind generator 10, thereby operating the absorption-type refrigerator 50 through the building To manage the cold and heating.

More briefly, the present invention recruits abundant solar heat and wind power to the available heat using a heater through a collector and a wind power generator on the earth, and utilizes the heat again to operate the absorption chiller 50 to cool the building. I want to manage the heating.

Of course, the solar collector and wind-generated generators may use a well-known device that is already widely used, so a detailed description thereof will be omitted.

By operating the absorption chiller 50 proposed in the present invention by using the thermal energy such that the air cools through the absorption chiller 50 can be maintained in a more comfortable cooling state in the summer, the winter warms the air more You can keep warm heating. Of course, the heat source can be directly supplied to the absorption chiller 50, but in the present invention, as shown in FIGS. 1 and 5, a separate hot water storage tank BB is heated and the circulation heater 52 rotates in the hot water storage tank BB. Adopted a method of heating the absorption chiller 50 through.

On the other hand, in the heat source supply apparatus in the present invention, by operating the heater (BC) using the commercial power 40 can use the commercial power as an auxiliary power of the heater. That is, the present invention is to produce a heating heat source in a manner to operate the heater (BC) through the electricity produced by using wind power and thus produced electricity. In the case of wind power, it is a method of using commercial power auxiliaryly as the wind strength is not constant according to season or weather.

In addition, the worst situation may be the case that the weather is cloudy depending on the natural environment and the climate is less heat by the solar collector 20, the wind does not blow. In this case, too, it is inevitable to use the electric power to operate the heater as an operating heat source of the absorption chiller.

After all, the heat source supply apparatus of the present invention, at least one of a heating heat source of the heater (BC) through the wind turbine 10, a heating heat source using the solar collector 20 and a heating heat source of the heater (BC) using commercially available power. The heating heat source is used alone or selectively to operate the absorption refrigerator (50). More specifically, as shown in FIG. 2, when the wind is strong, the rotational force is particularly strong, so that there is no problem in obtaining a heating heat source required to operate the system of the present invention. In this case, therefore, the absorption chiller 50 is operated using only wind power. Of course, leaving the system running in this way also allows you to gather power in a separately prepared capacitor to prepare for any potential shortfall.

And if only the solar collector 20 is movable, the system of the present invention can be operated only by the solar collector 20, and both the wind generator 10 and the solar collector 20 must be utilized to operate the system used in the present invention. If it can, it's all done. Of course, if it is not enough to utilize both the wind power generator 10 and the solar collector 20 as described above to operate the system of the present invention using commercial power together to achieve the desired purpose.

Hereinafter, look at the more detailed configuration of the absorption chiller 50 utilized in the present invention and the appearance of its operation. 3, 4 and 5, as shown in the configuration of the absorption chiller 50, first, the absorption chiller is filled with the absorbent aqueous solution, and heated through a heating heat source using a heater (BC) and a solar collector 20 therein. There is a regenerator 51 that is heated by the circulation heater 52 of the hot water storage tank (BB), there is a four-way valve (V) having four gates to change the path of the water vapor, and the regenerator 51 There is a condenser 53 in communication with the cooling tower 54 which is connected to the pipe to condense the vaporized water vapor. There is also an evaporator 55 in communication with the condenser 53 to achieve substantial cooling heat exchange, and an absorbent in communication with the evaporator 55, collecting water vapor which achieves heat exchange, and sorting off the regenerator 51 and falling off. There is an absorber 58 to absorb. Therefore, they combine to separate the refrigerant (water) and the absorbent through the heating heat source, achieve a state change of the refrigerant to cool the internal temperature of the building in summer and heating in winter.

However, the absorbent used in the absorption refrigerator may be one selected from lithium bromide, lithium chloride and ammonia. Therefore, the lithium bromide, which can be used most commonly, and has a stable efficiency, will be described in detail by way of example. First, cooling of summer will be described first, and winter heating will be described below.

[Cooling in summer]

 That is, the regenerator 51 of the absorption chiller 50 of the present invention is present in a state in which lithium bromide and water are dissolved. That is, lithium bromide is used as an absorbent and the water becomes a refrigerant. Therefore, in the present invention, when lithium bromide is a solvent and water is a solute and a large amount of water is molten in lithium bromide, it is referred to as a high concentration solution, and when a small amount of water is molten in lithium bromide, a low concentration solution.

The state of detailed operation of the absorption chiller 50 of the present invention will now be described. The lithium bromide and water are melted and mixed in the regenerator 51 to supply heat supplied from the above-described heat source supply device (wind power, solar heat, and commercial power). That is, the hot water through the heat source supplied by using the solar power collector 20, the heat source supplied using the solar collector 20, the heat source supplied through the commercialized power 40 through the power source supplied from the wind power generator 10 The reservoir BB is warmed, and the lithium bromide aqueous solution inside the regenerator is heated through the circulation heater 52 of the hot water reservoir BB. Then, since the boiling point of the lithium bromide and the water is different, the water rises by steaming, and the lithium bromide is naturally separated downwardly. At this time, as the water vapor flows, as shown in FIGS. 3 and 5, the water (refrigerant) is vaporized to rise, and then enters the 4-way valve (V). The four-way valve (V) is formed with four gates, which control the path of water vapor flow through the opening gate. In the summer, the water vapor moves on the first and second gates to maintain the open gates 1 and 2, as shown in FIGS. 3 and 5 of the 4-way valve (V) of the present invention. Will come in). In the narrow closed space of the condenser 53, water vapor is subjected to high pressure and the temperature is increased. This is the difference from the general steam compression freezer, the general air-conditioning or freezing method of the refrigerator is to pressurize the refrigerant in a way to pressurize and compress through a compressor to increase the temperature, the refrigerant vapor of the present invention uses this method It is not to be made, but to be in close contact with a high temperature state and to increase the pressure as steam while changing the state to a higher temperature state. And the inside of the condenser 53 is to drop the temperature through the cooling water delivered from a separate cooling tower (54). Then, the water vapor in the condenser will be narrowed as the temperature decreases the distance between the water molecules, and liquefied with each other, the liquid condensed water is brought down to the evaporator (55) close to the high pressure. However, since the evaporator 55 suddenly expands its space, the condensed water at high pressure closely expands as its volume expands, thereby increasing its intermolecular distance and rapidly cooling it. This is to induce contact with the air passing through the evaporator to cool the room temperature.

Then, the refrigerant in the evaporator (55) through the friction with the air again goes to the four-way valve (V) while moving in the form of water vapor as the temperature rises again. Since the burn gate is open, it passes through gate 4 and passes through gate 3 to enter the absorber. Then, it is dissolved with lithium bromide, which is an absorbent present in the absorber, to form a lithium bromide aqueous solution. Of course, the solution of the aqueous lithium bromide solution is moved back to the regenerator 51 and is recycled by being separated in a boiling point by a heating heat source as described above.

Next, the mobile situation of lithium bromide to be melted with the refrigerant water will be described. As described above, once separated by heat in the regenerator 51 into pure lithium bromide, it falls downward and falls into the absorber, which is in contact with water vapor, which is heated and delivered in the evaporator 55 described above. Upon contact with each other, they are melted together to form an aqueous lithium bromide solution. The lithium bromide aqueous solution is again supplied to the regenerator 51, separated and dropped into the absorber 58, and the recycling process is supplied to the regenerator 51 again.

In the present invention, between the regenerator 51 and the absorber 58 of the absorption chiller 50, it is preferable to provide a heat exchanger 56 for separately communicating the separated lithium bromide and the lithium blmide aqueous solution. That is, the high concentration lithium bromide aqueous solution (mixed with a lot of water) in the absorber 58 passes through the heat exchanger 56 and is supplied to the regenerator while the temperature is raised. In the elevated state, when more heat is received by a heating heat source such as a heater, it is separated more quickly so that a low concentration of lithium bromide solution (mixed with less water) can be obtained.

Meanwhile, between the absorber 58 and the heat exchanger 56 of the absorption chiller 50, a transfer pump 57 is preferably installed to pump the lithium bromide aqueous solution to the heat exchanger 56. That is, by installing a separate transfer pump (57) in order to quickly deliver the lithium bromide aqueous solution to help this action. As a result, in the summer cooling system of the present invention through such a cycle is to induce a cool summer by cooling the room through the evaporator.

[Winter heating]

Next, a detailed description will be given of the winter operation of the absorption refrigerator 50 according to the present invention. The lithium bromide and water are melted and mixed in the regenerator 51 to supply heat supplied from the above-described heat source supply device (wind power, solar heat, and commercial power). That is, through the heat source supplied by the heater BC, the heat source supplied using the solar heat collector 20, the heat source supplied through the commercialized power 40 through the power supplied from the wind power generator 10 The hot water storage tank BB is heated, and the lithium bromide aqueous solution in the regenerator is heated through the circulation heater 52 circulated in the hot water storage tank BB. Then, since the boiling point of the lithium bromide and the water is different, the water rises by steaming, and the lithium bromide is naturally separated downwardly. At this time, as the water vapor flows, as shown in FIGS. 4 and 5, the water (refrigerant) is vaporized to rise, and then enters the four-way valve (V). The four-way valve (V) is formed with four gates, which control the path of water vapor flow through the opening gate. In winter, as shown in FIGS. 4 and 5 shown in the 4-way valve (V) of the present invention, the water vapor moves on the gates 1 and 4 to maintain the gates 1 and 4 open, and the evaporator 53 Will come in). That is, high temperature water vapor enters the evaporator and attempts to heat exchange with the air in the room, thereby changing the state of the room air to a high temperature, and the water vapor, which is a refrigerant, is cooled to a state where heat energy is deprived. Of course, in this process, the room temperature can rise to have a warm winter. And the water vapor is changed to a somewhat low temperature through the evaporator is to pass through the condenser (53). Of course, the condenser has a cooling tower and thus serves to further reduce the temperature of the steam.

Then, the water vapor inside the condenser will decrease the temperature between the water vapor molecules narrow and liquefy each other, the liquid condensed water is brought into the four-way valve (V) close to the high pressure, the four-way valve (V) is Since gates 2 and 3 of the 4 gates are open, they enter the absorber through gates 2 and 3. Then, it is dissolved with lithium bromide, which is an absorbent present in the absorber, to form a lithium bromide aqueous solution. Of course, the solution of the aqueous lithium bromide solution is moved back to the regenerator 51 and is recycled by being separated in a boiling point by a heating heat source as described above.

Next, the mobile situation of lithium bromide to be melted with the refrigerant water will be described. As described above, once separated by heat in the regenerator 51 into pure lithium bromide, it descends downward and falls into the absorber, which is in contact with the water vapor, which is warmed and delivered in the condenser 53 described above. Upon contact with each other, they are melted together to form an aqueous lithium bromide solution. The lithium bromide aqueous solution is again supplied to the regenerator 51, separated and dropped into the absorber 58, and the recycling process is supplied to the regenerator 51 again.

Eventually, the winter heating system of the present invention through such a cycle is to induce a warmer winter by heating the room through the evaporator.

1 shows an overall system of the invention,

2 is a view showing the utilization of the situation of the solar and wind power generation used in the present invention,

3 is a view showing the appearance of the summer circulation of the absorption chiller according to the present invention,

Figure 4 is a view showing the appearance of the winter circulation of the absorption chiller according to the present invention,

5 is a system diagram schematically illustrating the appearance of a system according to the present invention.

<Brief description of the major symbols in the drawing shown>

10; Wind generator V; 4-way valve

40; Power 50; Absorption Chiller

51; Regenerator 52; heater

53; Condenser 54; Cooling tower

55; Evaporator 56; heat transmitter

57; Transfer pump 58; Absorber

75; Expansion valve

Claims (7)

A heat source supply device configured to supply a heat source, comprising a high heat heater BC and a solar collector 20 that operate using electricity produced by the wind power generator 10; A hot water storage tank (BB) heated by using a heat source generated by the heat source supply device; In the solar heat, wind hybrid cold, heating system, characterized in that by operating the absorption chiller 50 using the heat of the hot water storage tank (BB) to manage the cooling, heating of the building, The absorption chiller 50, A regenerator 51 filled with an absorbent solution and heated by a circulation heater 52 of the hot water storage tank BB; A four-way valve (V) having four gates to change the path of the steam; A condenser 53 connected to the regenerator 51 and connected to a cooling tower 54 for condensing the evaporated refrigerant; An evaporator (55) in communication with the condenser (53) to achieve substantial cooling heat exchange; An absorber (58) which communicates with the evaporator (55), collects refrigerant which has achieved heat exchange, and absorbs the absorbent which is separated from the regenerator (51); It is configured to include a refrigerant and absorbent through the heating heat source to achieve a change in the state of the refrigerant to cool the internal temperature of the building in the summer and heating in winter, solar, wind hybrid cold, heating system, characterized in that. The method according to claim 1, The heat source supply device, Solar power, wind hybrid cooling, heating system, characterized in that the wind power generator 10 is supplied separately from the commercial power (40) can be used additionally if the wind power generation is difficult. The method according to claim 2, The heat source supply device, One or more heating heat sources of the heating heat source of the heater BC through the wind power generator 10, the heating heat source using the solar collector 20, and the commercial heat of the heater BC using commercially available power alone or selectively coupled to the absorption type. Solar, wind hybrid cold, heating system, characterized in that for operating the refrigerator (50). delete The method according to claim 1, Between the regenerator (51) and the absorber (58) of the absorption chiller (50), a heat exchanger (56) for communicating separately the absorbent and the absorbent aqueous solution, characterized in that the solar, wind hybrid cold, heating system. The method according to claim 5, Between the absorber 58 and the heat exchanger 56 of the absorption chiller 50, Solar, wind hybrid cold, heating system, characterized in that the pump to install the feed pump to absorb the absorbent solution to the heat exchanger (56). The method according to claim 1, The absorbent, Solar, wind hybrid cold, heating system, characterized in that selected one of lithium bromide, lithium chloride and ammonia can be used.

Images