KR101091817B1 - Solar ejector refrigeration system - Google Patents

Abstract

The present invention relates to a solar ejector air conditioner, comprising: a heating apparatus for heating a fluid medium by using solar heat, a circulation tank for storing a heat exchange medium continuously exchanged without being mixed with the fluid medium heated by the heater, and a heat exchanger And a cooling cycle unit for recovering and cooling the heat through the heat exchange medium circulated and guided as it is heated.

The present invention can realize the green energy by using environmentally friendly energy by allowing the refrigerant circulating the cooling cycle to heat-exchanged with solar heat, unlike the prior art, it is possible to simplify the heat exchange structure to reduce the design and manufacturing costs can do.

Solar heat, cooling cycle, ejector, expansion nozzle, evaporator, condenser

Description

Solar Ejector Cooler {SOLAR EJECTOR REFRIGERATION SYSTEM}

The present invention relates to a solar ejector air conditioner, and more particularly, by allowing a refrigerant circulating a cooling cycle to exchange heat with water heated by solar heat, green energy can be realized by using environmentally friendly energy, and a heat exchange structure can be simplified. The present invention relates to a solar ejector cooler that can reduce design and manufacturing costs.

Many methods have been devised to achieve the conventional cooling or freezing effect. These methods are mainly the most basic conventional method using natural or artificial ice, mechanical compression method using various refrigerants, absorption method using refrigerants and absorbents, vacuum method of lowering pressure to obtain cooling effect, and in case of passing current through semiconductor. It can be classified into an electronic refrigeration method using the generated Peltier effect.

Among them, the method of using ice has a disadvantage in that a large amount of energy is required to generate ice itself.

In the mechanical compression method, as shown in FIG. 1, a volatile liquid, that is, a refrigerant, is used, and the refrigerant is compressed (1)-condensation (5)-expansion (11)-evaporation. By repeating the process (evaporation, 6), heat exchange with the surrounding medium occurs.

This mechanical compression method requires not only considerable power to operate the compressor, but also requires the use of various refrigerants, which are the main causes of global warming, but the coefficient of performance (COP) of the refrigeration cycle is different. It has been used a lot in the conventional method.

In addition, the absorption type uses a material capable of absorbing a large amount of vapor generated when the refrigerant evaporates, that is, an absorption material, and uses a chemical absorption process generated in the absorbent. Recently, due to the problem of global warming, the use of CFC or HCFC system refrigerants is extremely limited, and there are many absorption type air-conditioning and heating devices that apply solar heat to LiBr (Lithium Bromide), water, and refrigeration units using ammonia and water as environmentally friendly refrigerants. It is proposed.

That is, as shown in FIG. 2, in the absorption type cooling system, water is evaporated in the evaporator 6 under vacuum pressure and absorbed by the LiBr aqueous solution in the absorber 7.

The dilute solution 7a which absorbed water is heated and evaporated by the solar heat source obtained from the solar collector 2 via the generator 4, and becomes a thick solution 7b and sent to the absorber.

The steam generated in the generator is condensed into water in the condenser (5) and sent to the evaporator, and in this process, the heat is taken from the surroundings as much as the latent heat of evaporation of the refrigerant to obtain a cooling state. In order to smoothly operate the absorption cooling system, first to fourth circulation pumps 10a, 10b, 10c, and 10d are required, and a cooling tower 9 for cooling water supply is required.

Therefore, not only the design of the device is complicated, but also a device for creating a vacuum state is additionally required, which causes a problem in that the manufacturing cost of the device is high. Moreover, excessive investment costs are required compared to the amount of energy obtained, such as the need for a large number of mechanical pumps to circulate the fluid in the cycle, or in some cases additional cooling towers.

Meanwhile, the vacuum method is also called a steam jet method, and uses a principle that the boiling point of the fluid is lowered as the boiling pressure is lowered. An ejector or a vacuum is used instead of the compressor used in the mechanical compression method or the absorption method. Use a vacuum pump.

The method of using a vacuum pump has limitations such as energy problems required to drive the vacuum pump, maintenance and maintenance of the system, and noise / vibration problems caused by the pump.

In the ejector 16 shown in FIG. 3, the supersonic jet 20 is generated at the nozzle exit when the high pressure fluid is discharged from the high pressure fluid through the reduction / enlargement nozzle 17 using the driving fluid Q1.

At this time, the pressure decreases inside the supersonic jet, and a strong shear action with the surrounding fluid occurs outside the jet stream to draw the surrounding fluid into the jet stream (Q2).

The two fluids drawn into the driving fluid are mixed in the ejector mixing unit and discharged to the diffuser 18. In this case, when the flow path drawn into the ejector is connected to the evaporator 6, a pressure drop can be obtained in the evaporator, thereby reducing the temperature to obtain a cooling effect.

As such, when the ejector is used, a high pressure fluid must be used to generate the main flow Q1 of the ejector, and thus, a boiler or a steam compressor having a large capacity is required, and thus additional power is required. However, ejectors, unlike other fluid machines, have no moving parts and are very simple in structure and easy to operate. In addition, there is no noise / vibration caused by the operation of the device, and recently, a lot of attention has recently been received due to unnecessary maintenance. However, since the ejector is driven only by the pure shear action, the efficiency of entraining the secondary flow is low, resulting in a low coefficient of performance.

Therefore, in recent years, a lot of research and development is progressing on solar heat, a pollution-free and environmentally friendly energy source, and recently, heating and cooling devices using solar heat have been developed in various forms.

Conventional solar heating and cooling device is difficult to obtain sufficient heating and cooling effect only by the solar heat itself, there is a problem that the structural complexity and installation cost increases by using various mechanical circulation pumps or mechanical compressors. In addition, in the case of using the ejector system to obtain the existing refrigeration or cooling effect, it is necessary to use a boiler or a compressor to increase the pressure of the ejector driving fluid, and furthermore, the COP that can be obtained from the ejector system is not large. It has been pointed out as a big obstacle to practical use. Therefore, there is a need for improvement.

The present invention has been made to solve the above problems, the solar ejector cooler to achieve the green energy by heat exchange the refrigerant of the cooling cycle with water heated to obtain the solar energy, and to reduce the installation cost through a simple structure The purpose is to provide.

In addition, the present invention is to provide a heat exchange tank at a position higher than the heat collecting member to induce a natural circulation of the heated water and the heat exchanged water to avoid the need for a separate pump to simplify the structure, reducing the maintenance cost The purpose is to provide an air conditioner.

In addition, the present invention is installed in a condenser of the cooling cycle at a position higher than the circulation tank that stores the water heat exchanged with the water in the heat exchange tank, and natural circulation of water as a refrigerant by passing the water of the gaseous phase rising due to high temperature and high pressure through the ejector The object is to provide a solar ejector cooler that allows for flow.

In addition, an object of the present invention is to provide a solar ejector cooler to improve the heat exchange rate between the water of the heat exchange tank and the water of the circulation tank by providing a circulation tank inside the heat exchange tank.

The heating apparatus according to the present invention comprises: a heat collecting member for collecting heat energy from solar heat and heating a fluid passing through the inside, and a temperature of the fluid stored in connection with the heat collecting member to continuously circulate the fluid. It includes a heat exchange tank to be maintained.

The heat exchange tank is preferably formed at a position higher than the heat collecting member.

The heat exchange tank is preferably provided with an auxiliary heating member for additional heating of the stored fluid medium.

The fluid medium is preferably water.

The heat exchange tank preferably forms a heat insulating member on a circumferential surface.

The heat collecting member may include a heat collecting plate made of a material having heat conduction, a flow channel formed inside the heat collecting plate to guide the flow of the fluid medium, and formed on the heat collecting plate corresponding to one side of the flow channel to form a fluid medium from the heat exchange tank. And an inlet port for introducing the inlet, and a discharge port formed in the heat collecting plate corresponding to the other side of the flow channel to discharge the heated channel and discharge the heated fluid medium toward the heat exchange tank.

The solar ejector cooler according to the present invention comprises: a heating apparatus for heating a fluid medium using solar heat, a circulation tank for guiding a natural circulation of the heat exchange medium continuously exchanged without being mixed with the fluid medium heated by the heating device, and And a cooling cycle unit for recovering and cooling the heat through the heat exchange medium circulated and guided as the heat is heated.

The heating device is a heat collecting member for collecting heat energy from the solar heat to heat the flow medium passing through the inside, and is connected to the heat collecting member to maintain the temperature of the flow medium stored as a continuous circulation induction of the fluid medium and And a heat exchange tank containing the circulation tank sealed to enable a natural flow of the heat exchange medium converted into high temperature and high pressure to the cooling cycle side.

The cooling cycle unit, an ejector which expands under reduced pressure when passing through a heat exchange medium naturally introduced into a gaseous state at a high temperature and high pressure in the circulation tank, provides a flow force, and releases heat of the reduced pressure expanded heat exchange medium into air at room temperature to condense and liquefy. A condenser for guiding flow into the circulation tank in a state, an expansion valve for liquefying by thermally expanding a portion of the heat exchange medium passing through the condenser at low temperature and low pressure, and absorbing latent heat of evaporation from the heat exchange medium in a state of passing through the expansion valve. And an evaporator for guiding the heat exchange medium converted into a low temperature and low pressure gaseous phase to the ejector to induce expansion under reduced pressure of the high temperature and high pressure heat exchange medium in the ejector.

The heat exchange medium is preferably water.

The condenser is preferably formed at a position higher than the circulation tank.

The condenser preferably forms a liquid spray nozzle for spraying a liquid onto a surface to lower the saturation temperature.

It is preferable that a pumping member is provided between the ejector and the evaporator.

As described above, the solar ejector air conditioner according to the present invention, unlike the prior art, realizes green energy by heat-exchanging the refrigerant of the cooling cycle with water heated by obtaining solar energy and can reduce installation costs through a simple structure.

In addition, the present invention provides a heat exchange tank at a position higher than that of the heat collecting member, thereby inducing a natural circulation of the heated water and the heat exchanged water, thereby simplifying the structure and reducing the maintenance cost.

In addition, the present invention is installed in a condenser of the cooling cycle at a position higher than the circulation tank that stores the water heat exchanged with the water in the heat exchange tank, and natural circulation of water as a refrigerant by passing the water of the gaseous phase rising due to high temperature and high pressure through the ejector The flow can be enabled, reducing installation costs.

In addition, the present invention can improve the heat exchange rate between the water of the heat exchange tank and the water of the circulation tank by providing a circulation tank inside the heat exchange tank.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the solar ejector cooler according to the present invention. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

4 is a configuration diagram of a solar ejector air conditioner with a heating device according to an embodiment of the present invention, Figure 5 is a conceptual view showing a condenser spraying facility of the solar ejector air conditioner with a heating device according to an embodiment of the present invention. 6 is a conceptual view illustrating a state in which a pumping member of a solar ejector cooler having a heating device according to an embodiment of the present invention is provided.

7 is a perspective view of a heat collecting member of the solar ejector cooler with a heating device according to an embodiment of the present invention, Figure 8 is a cross-sectional view of the heat collecting member of the solar ejector cooler with a heating device according to an embodiment of the present invention.

Referring to FIG. 4, the solar ejector cooler according to an embodiment of the present invention includes a heating device 100, a circulation tank 200, and a cooling cycle unit 300.

The heating device 100 serves to indirectly heat the heat exchange medium circulating in the cooling cycle unit 300.

In addition, the circulation tank 200 provides a space for direct heat exchange between the fluidized medium heated through the heating device 100 and the heat exchange medium circulating inside the cooling cycle unit 300.

In addition, the cooling cycle unit 300 realizes cooling while naturally providing flow propulsion force to the heat exchanging medium by passing the heat exchanging medium which rises to a gaseous state of high temperature and high pressure as it is heated by heat exchange.

In more detail, the heating apparatus 100 performs a function of heating the flowing medium by obtaining thermal energy using solar heat.

Here, the fluid medium may be a fluid or gas of various components as a medium having fluidity, and is preferably water in consideration of environmental friendliness, cost, and heat transfer.

In particular, the heating device 100 includes a heat collecting member 110 and a heat exchange tank 120.

The heat collecting member 110 serves to heat the fluidized medium by directly supplying heat energy to the fluidized fluid.

The heat exchange tank 120 stores the flow medium flowing from the heat collecting member 110 and directly supplies the cooling medium 300 to the cooling cycle unit 300.

In this case, the flow medium circulates through the heat collecting member 110 and the heat exchange tank 120 by the circulation pipe 102.

That is, the heat collecting member 110 and the heat exchange tank 120 are formed in the circulation pipe 102 forming a closed curve.

7 and 8, as an example, the heat collecting member 110 includes a heat collecting plate 112, a flow channel 114, an inlet port 116, and an outlet port 118.

The heat collecting plate 112 is made of a material having heat conductivity. In addition, the heat collecting plate 112 can be applied in various shapes.

In addition, the flow channel 114 is formed on the inner side of the heat collecting plate 112, and both sides thereof are formed to be opened to the outside of the heat collecting plate 112, thereby guiding the flow of the fluid.

That is, the flow medium flows inside the heat collecting plate 112 through the flow channel 114, and the heat collecting plate 112 supplies heat energy to the flow channel 114 that receives solar heat.

At this time, the heat collecting plate 112 is a part except the both sides of the flow channel 114 by a variety of methods, such as by finishing the process in such a way that it is bonded to the cover (not shown) after indenting the flow channel 114 on one side. It is sealed. In addition, the flow channel 114 is formed along various trajectories such as a zigzag shape inside the heat collecting plate 112.

In addition, the inlet port 116 is formed in the heat collecting plate 112 corresponding to one side of the flow channel 114 serves to guide the flow medium from the heat exchange tank 120, the discharge port 118 is a flow channel ( It is formed on the heat collecting plate 112 corresponding to the other side of the 114 to flow the flow channel 114 serves to guide the discharged heated fluid medium toward the heat exchange tank (120).

At this time, the inlet port 116 and the discharge port 118 may be formed detachably on the heat collecting plate 112, it may be formed integrally.

More specifically, the circulation pipe 102 connected to each of the inlet port 116 and the outlet port 118 forcibly inserts a connection port 117 having a substantially 'T' shape.

The connection port 117 is formed to contact the edge of the corresponding inlet port 116 and outlet port 118.

And, the circulation pipe 102 is provided with a nut 119 on the circumferential surface. The nut 119 is preferably tab-coupled with the circumferential surface of the corresponding inlet port 116 and outlet port 118.

In particular, when the nut 119 is completely coupled to the inlet port 116 and the outlet port 118, the nut 119 is pushed to bring the connection port 117 into close contact with the heat collecting plate 112.

Of course, the connection port 117 can be applied in various shapes.

In addition, the circulation pipe 102 and the inlet port 116 and the circulation pipe 102 and the discharge port 118 is connected in a detachable manner can be variously applied.

On the other hand, the flow medium circulating through the circulation pipe 102 may be forcibly circulated by an external force such as a pump, but is preferably circulated naturally.

That is, the heat exchange tank 120 is preferably installed higher than the heat collecting member 110 by a predetermined distance Δh1.

Thus, the fluid medium passing through the flow channel 114 of the heat collecting plate 112 is heated to a high temperature and high pressure. Thus, the flow medium in the high temperature and high pressure rises along the circulation pipe 102 and flows into the heat exchange tank 120.

The flow medium introduced into the heat exchange tank 120 falls through the circulation pipe 102 in a cooled state after heat exchange with the cooling cycle unit 300 and flows into the heat collecting plate 112.

At this time, the heat exchange tank 120 is always filled with a fluid medium inside.

Therefore, the flow medium is capable of circulating flow through the circulation pipe 102 while converting the potential energy into kinetic energy.

In particular, the manner in which the circulation pipe 102 is connected to the heat exchange tank 120 may be the same as or different from the method of connecting the circulation pipe 102 and the inlet port 116.

On the other hand, the heat exchange tank 120 is preferably provided with an auxiliary heating member 130 to further heat the stored fluid medium.

The auxiliary heating member 130 is a heat generating device that generates heat when an external power is applied. The auxiliary heating member 130 may be wound around the circumferential surface of the heat exchange tank 120 to indirectly supply heat to the fluid when the external power is applied. It is also possible to supply heat directly to the fluid medium by the power applied from the outside while being inserted into the.

That is, the auxiliary heating member 130 heats the fluid medium temporarily stored in the heat exchange tank 120 by various methods.

In particular, the heat exchange tank 120 is provided with a circulation tank 200, which will be described later, the circulation tank 200 stores the refrigerant.

Therefore, the refrigerant in the circulation tank 200 is heat-exchanged with the fluid medium of the heat exchange tank 120. The auxiliary heating member 130 assists the fluid medium to be heated as much as possible to further increase the temperature of the refrigerant in the circulation tank 200. Ascends.

In addition, the heat exchange tank 120 is preferably formed with a heat insulating member 140 on the circumferential surface so as not to lose the heat of the temporarily stored fluid medium to the outside.

At this time, the heat insulating member 140 may be applied to various materials such as pads, and is preferably formed to surround the circumferential surface of the heat exchange tank 120 as much as possible.

In addition, the heat insulating member 140 is fixed by a method such as bonding in the state surrounding the heat exchange tank 120.

On the other hand, the thermal energy of the flow medium heated in the circulation tank 200 is supplied to the cooling cycle unit 300 side.

In particular, the cooling cycle unit 300 serves to generate cold air by circulating the heated heat exchange medium along a cooling cycle by receiving heat energy from the heating apparatus 100.

Here, a facility for exchanging heat exchange medium with a fluid medium is required.

Thus, the flow medium circulates inside and outside the heat exchange tank 120, and the heat exchange medium circulates inside and outside the circulation tank 200.

In this case, the heat exchange tank 120 and the circulation tank 200 may be made of a material such as steel having excellent heat transfer properties and may be positioned as close as possible or may be installed to be in contact with the outer surfaces so as to sufficiently exchange heat between the fluid medium and the heat exchange medium. The circulation tank 200 is preferably mounted inside the heat exchange tank 120.

That is, as the circulation tank 200 is installed inside the heat exchange tank 120, the circulation tank 200 receives the maximum heat directly from the fluid medium.

Because of this, the heat exchange medium stored in the circulation tank 200 can obtain the heat delivered to the maximum to minimize the heat loss.

In particular, the circulation tank 200 is preferably to be sealed in the heat exchange tank 120 to prevent mixing of the flow medium and the heat exchange medium.

In addition, the heat exchange medium heated in the circulation tank 200 and converted into a gaseous phase in a high temperature and high pressure state passes through the cooling cycle part 300 to generate cold air, and then flows into the circulation tank 200.

In this case, the heat exchange medium may be a fluid or gas of various components as a medium having fluidity, and is preferably water in consideration of environmental friendliness, cost, and heat transfer.

Meanwhile, the cooling cycle unit 300 includes an ejector 310, a condenser 320, an expansion valve 330, and an evaporator 340.

In particular, the circulation tank 200, the ejector 310 and the condenser 320 is connected to the refrigerant pipe 302 forming a closed curve to enable the circulation of the heat exchange medium.

In addition, the expansion valve 330 and the evaporator 340 are connected to the branch pipe 304 across the refrigerant pipe 302 forming a closed curve.

At this time, although not shown, the refrigerant pipe 302 is connected to the circulation tank 200, the ejector 310 and the condenser 320 by a variety of ways that can be sufficiently sealed.

In addition, although not shown, the branch pipe 304 is connected to the expansion valve 330 and the evaporator 340 by various ways that can be sufficiently sealed.

In addition, although not shown, the refrigerant pipe 302 and the branch pipe 304 may be connected to be separated from each other to be sealed, or may be integrally connected by welding or the like.

In detail, the refrigerant pipe 302 heats the heat exchange medium in the circulation tank 200 to form a closed curve for circulating the heat exchange medium in a gaseous state at high temperature and high pressure.

The heat exchange medium naturally flows to the ejector 310 along the refrigerant pipe 302.

That is, the heat exchange medium having a high temperature and high pressure gaseous phase in the circulation tank 200 flows into the ejector 310 while naturally rising through the refrigerant pipe 302 as the specific gravity is low as it is in a gaseous state.

At this time, the circulation tank 200 is filled with a heat exchange medium.

The ejector 310 is formed in the refrigerant pipe 302 to convert pressure energy of a heat exchange medium, which is a gaseous phase of high temperature and high pressure, discharged from the circulation tank 200 into velocity energy, thereby expanding under reduced pressure.

At this time, the ejector 310 passes through the evaporator 340 and flows in a heat exchange medium having a low temperature and low pressure gaseous phase and serves to mix and discharge the heat exchange medium having a high temperature and high pressure gaseous phase.

In particular, since the ejector 310 provides a driving force according to the flow of the heat exchange medium, a driving means such as a compressor or a pump, which is conventionally provided to achieve a cooling cycle, is not required.

In addition, the ejector 310 is generated by the supersonic airflow of the heat exchange medium passing through the reduced expansion nozzle 312, the heat exchange medium passing through the reduced expansion nozzle 312, the heat exchange medium is a high temperature and high pressure gas discharged from the circulation tank 200 Inlet 314 for sucking the heat exchange medium which is a low temperature low pressure gaseous phase generated by the evaporator 340 by the shearing action and the pressure drop action, a high temperature high pressure heat exchange medium and a low temperature low pressure heat exchange medium are mixed to induce a temperature drop. The portion 316 and the diffuser 318 which compensates for the reduced pressure by decelerating the mixed heat-exchanged heat exchange medium.

In particular, the ejector 310 may be made of a variety of shapes and various materials, it is possible to apply a variety of methods, such as a tab tightening the refrigerant pipe 302 and the branch pipe (304).

In addition, the condenser 320 is formed in the refrigerant pipe 302 to pass through the ejector 310 serves to discharge the heat of the heat-exchanging medium under reduced pressure in the air at room temperature to liquefy condensation.

Thereafter, the heat exchange medium expanded under reduced pressure through the condenser 320 is introduced into the circulation tank 200.

On the other hand, the branch pipe 304 is branched from the refrigerant pipe 302 extending from the heat exchange medium discharge side of the condenser 320 is connected to the inlet 314 of the ejector 310.

In addition, the expansion valve 330 is formed in the branch pipe 304 and serves to liquefy by thermally expanding the heat exchange medium partially branched and flowing in the condensed liquefied state in the refrigerant pipe 302 at low temperature and low pressure.

In addition, the evaporator 340 is formed in the branch pipe 304 to absorb the latent heat of evaporation from the heat exchange medium that is adiabatic expansion from the expansion valve 330 serves to cool.

In addition, the low-temperature, low-pressure gaseous heat exchange medium that absorbs heat and evaporates is transferred to the mixing unit 316 through the suction port 314 of the ejector 310 by an external force.

In particular, the heat exchange medium may be easily circulated into the circulation tank 200 after passing through the ejector 310.

In this case, it is preferable that the heat exchange medium is easily introduced into the circulation tank 200 in a state where the heat exchange medium is converted into a liquid state having a specific gravity higher than that of air during the cooling cycle.

As an example, the condenser 320 may be installed higher than the circulation tank 200 by a predetermined distance Δh2.

That is, the heat exchange medium in the liquefied state is naturally introduced into the circulation tank 200 quickly while falling through the refrigerant pipe 302.

In other words, the heat exchange medium heated in the circulation tank 200 and having a high temperature and high pressure gas phase is expanded under reduced pressure in a mixed state with the low temperature low pressure gas phase heat medium discharged from the evaporator 340 while passing through the ejector 310.

Thereafter, the heat exchange medium passes through the condenser 320 to liquefy condensation as heat is released into the air at room temperature.

Some of the heat-condensation medium condensed liquefied is adiabaticly expanded at low temperature and low pressure while passing through the expansion valve 330 through the branch pipe 304, and then absorbs latent heat of evaporation while passing through the evaporator 340 to cool.

 The rest of the condensation liquefied heat exchange medium is introduced into the circulation tank 200.

Thus, after the condensation liquefied heat exchange medium is introduced into the circulation tank 200 and heat exchanged with the heated fluid medium, the heat exchange medium is phase-changed again into a high temperature and high pressure gas phase.

On the other hand, the condenser 320 performs a function of liquefying condensation by releasing heat into the air at room temperature while passing the heat-expanded heat exchange medium under reduced pressure, by being forced to cool by the outside can improve the cooling efficiency.

As an example, referring to FIG. 5, the condenser 320 includes a liquid spray nozzle 350 around the liquid spray nozzle 350. 352).

Therefore, the cooling liquid flowing through the inner member 352 during the liquid oil is injected toward the condenser 320 through the liquid spray nozzle 350.

Here, the inner oil member 352 during the liquid oil is preferably a conventional pipe.

Although not shown, the liquid spray nozzle 350 is preferably sprayed directly on the condenser 320, in particular, a cooling fin provided in the condenser 320.

At this time, the liquid oil inner member 352 may be fixed to the circumferential surface of the condenser 320, or may be fixed to any external body to be close to the condenser 320.

In addition, the liquid spray nozzle 350 is preferably detachably connected to the inner member 352 during the liquid oil by various methods such as tab coupling.

The inner member 352 during the liquid oil is supplied with liquid from the outside such as a tank.

Of course, the liquid injection nozzle 350 is preferably automatically controlled to control the injection of the cooling liquid.

In addition, the condenser 320 is provided at a predetermined position (Δh2) higher than the circulation tank 200, the ejector 310 and the condenser 320 is preferably arranged as close as possible to reduce the heat loss. That is, in order to increase the pressure of the water generated in the condenser 320 to the pressure inside the circulation tank 200, it is preferable to install the circulation tank 200 far below the condenser 320.

Then, the water can be effectively circulated inside two cycles of heating and cooling without using a conventional circulation pump.

In addition, the heat exchange medium flowing through the branch pipe 304 has lost a lot of flow propulsion force.

Therefore, the heat exchange medium flowing through the branch pipe 304 is not easy to flow to the ejector 310 located above the evaporator 340.

Thus, the heat exchange medium flowing through the branch pipe 304 is to be raised to the inside of the ejector 310 by an external force is preferable for even flow of the heat exchange medium.

As an example, referring to FIG. 6, a branching pipe 304 corresponding to the ejector 310 and the evaporator 340 is provided with a pumping member 360.

The pumping member 360 serves to pump the heat exchange medium passing through the branch pipe 304, in particular, the evaporator 340, to be stably supplied to the inlet 314 of the ejector 310.

At this time, the pumping member 360 is applicable to various models, and pumps the heat exchange medium flowing through the branch pipe 304 in a variety of ways.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs may various modifications and other equivalent embodiments therefrom. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

1 is a conceptual diagram of a general mechanical cooling cycle.

2 is a conceptual diagram of a general absorption cooling cycle.

3 is a view showing a general ejector structure.

4 is a block diagram of a solar ejector cooler having a heating apparatus according to an embodiment of the present invention.

5 is a conceptual view illustrating a condenser spraying facility of a solar ejector cooler having a heating device according to an embodiment of the present invention.

6 is a conceptual view illustrating a state in which a pumping member of a solar ejector cooler provided with a heating device according to an embodiment of the present invention is provided.

7 is a perspective view of a heat collecting member of a solar ejector cooler having a heating apparatus according to an embodiment of the present invention.

8 is a cross-sectional view of a heat collecting member of a solar ejector cooler having a heating device according to an embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

100: heating device 110: heat collecting member

114: flow channel 120: heat exchange tank

130: auxiliary heating member 140: heat insulating member

200: circulation tank 300: cooling cycle unit

310: ejector 320: condenser

330: expansion valve 340: evaporator

350: liquid spray nozzle 352: inner member during the liquid oil

360: pumping member

Claims (17)

delete delete delete delete delete delete A heating device for heating the fluid medium using solar heat; A circulation tank for guiding a natural circulation of the heat exchange medium continuously being heat exchanged without being mixed with the fluid medium heated by the heating device; And And a cooling cycle unit for recovering and cooling the heat through the heat exchange medium circulated and guided as the heat is heated and heated. The cooling cycle unit, the ejector provides a flow force by expanding under reduced pressure when passing through the heat exchange medium naturally introduced into the gas phase state of high temperature and high pressure in the circulation tank; A condenser for releasing heat of the decompressed heat exchange medium into air at room temperature to flow and guide the inside of the circulation tank in a liquefied condensation state; An expansion valve for adiabatic expansion and liquefaction of a portion of the heat exchange medium passing through the condenser at low temperature and low pressure; And The evaporator absorbs the latent heat of evaporation from the heat exchange medium while passing through the expansion valve and cools the heat exchange medium converted into a low-temperature and low-pressure gas phase to induce expansion and decompression of the high-temperature and high-pressure heat exchange medium inside the ejector. It includes an evaporator for guiding the transfer to The condenser is provided with a liquid spray nozzle for injecting a liquid to the surface to lower the saturation temperature, Solar ejector cooler, characterized in that the pumping member is provided between the ejector and the evaporator. The method of claim 7, wherein the heating device, A heat collecting member for collecting heat energy from solar heat and heating a fluid medium passing through the inside; And The circulation tank connected to the heat collecting member maintains the temperature of the stored fluid at high temperature as the circulation medium continuously circulates, and seals the heat exchange medium converted into high temperature and high pressure to allow the natural flow to the cooling cycle part. Solar ejector cooler comprising a heat exchange tank containing a. delete The method of claim 7, wherein The heat exchange medium is a solar ejector cooler, characterized in that the water. The method of claim 7, wherein And the condenser is formed at a position higher than the circulation tank. delete delete The method of claim 8, The heat exchange tank is a solar ejector cooler, characterized in that formed in a position higher than the heat collecting member. The method of claim 8, The heat exchange tank is a solar ejector cooler, characterized in that it comprises an auxiliary heating member for additional heating of the stored fluid medium. The method of claim 8, The heat exchange tank is a solar ejector cooler, characterized in that to form a heat insulating member on the circumferential surface. The method of claim 8, wherein the heat collecting member, A heat collecting plate which is a material having heat conductivity; A flow channel formed inside the heat collecting plate to guide the flow of the fluid medium; An inlet port formed in the heat collecting plate corresponding to one side of the flow channel to guide the inflow of the fluid medium from the heat exchange tank; And And a discharge port formed in the heat collecting plate corresponding to the other side of the flow channel to flow the flow channel and discharge the heated fluid medium toward the heat exchange tank.

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