ES1072410U - Thermodynamic equipment with solar and geothermal combined evaporator (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Thermodynamic equipment with combined solar and geothermal evaporator, constituted by a thermodynamic unit (1) composed of a compressor (6), an expansion element (7), a condenser (5) in contact with the fluid to be heated as well as the auxiliary elements necessary for its proper functioning, and characterized by having a combined evaporator consisting of a solar panel (2) located outside, which will carry out the evaporation thanks to the capture of solar and environmental energy; as well as by a geothermal sensor (3) constituted by an underground circuit, which guarantees evaporation when the external conditions do not allow it to occur in the solar evaporator, this process being regulated by the equipment control means, which will act on the corresponding cut-off valves (8) that allow the passage to the solar panel and/or to the geothermal evaporator. (Machine-translation by Google Translate, not legally binding)

Description

Thermodynamic equipment with combined evaporator solar and geothermal.

Technical sector

The present invention is related to renewable energy, specifically with the use of solar, environmental and ground energy or geothermal energy, for later application in heating installations, air conditioning, hot water, and in general with those that need the heating or cooling of a fluid, from thermodynamic systems

Background of the invention

They are well known in the current state of the technique, thermal power generation equipment that they use heat pumps to achieve this end, and consist of a compression cycle in which the condenser is an exchanger in contact with the fluid to be heated, the evaporator being generally an air forced heat exchanger.

Similarly, there are production systems for thermal energy using a heat pump whose evaporator is an external direct expansion panel exposed to solar radiation and environmental energy. These teams manage to increase the process performance thanks to environmental conditions external added to solar gain favor evaporation, if well this efficiency is diminished when temperatures are low, since the driving force of such a change of state, that is, the temperature difference between the cooling fluid and the environment is lower, affecting energy production. Likewise, there are heat pump systems that use the ground as a focus for the collection of energy, because it has a high thermal inertia, presenting constant temperatures throughout the year.

However, the inventor does not have any knowledge of a device such as that presented by said request designed to produce thermal energy with a high performance and low energy consumption, when presenting an evaporator combined, configured by a direct expansion solar panel and a geothermal collector, so that evaporation will occur in that focus on which conditions are more favorable, which guarantees that the equipment always works in optimal conditions. This form, when solar radiation levels and / or temperature environment are high, the equipment will work using as evaporator or energy collection point to the panel or panels solar. However, when the weather conditions are unfavorable, evaporation will drift to the collector geothermal, with the advantage that underground temperatures They remain in a constant range throughout the year.

In this way, the advantage is obtained of having a heat pump system capable of working in a wide range of climatic conditions, always ensuring maximum use of both solar radiation, environmental energy and geothermal energy, with a functioning stable to ensure efficiency
optimal

As a final result, a team of heat pump with solar, environmental and geothermal use, whose evaporation will take place primarily in the evaporator panel solar provided the outside conditions; are appropriate, and when temperatures are low and such a phase change is difficult  outside, it can be optimally given in the exchanger located under the ground. In this way, the resulting team is capable to generate thermal energy for heating air or water with a superior independence of the weather conditions, since that the correct evaporation is always guaranteed. This stage is fundamental since it conditions the efficiency of the equipment in unfavorable external conditions. Such characteristics added to the low consumption provided by compression cycles, depending on the thermal power that they are able to supply, convert to this equipment in a clean and efficient way to obtain air or water hot, generating energy savings, which translates into economic. In addition the same team can incorporate a system cycle inverter, which allows you to generate cold.

Description of the invention

Specifically, the object of the invention is a equipment to generate water or hot air through a cycle of thermodynamic compression, which will have a combined evaporator composed of one or more external evaporator panels followed of a geothermal evaporator, to ensure correct operation of the process according to the environmental conditions that they exist

The equipment consists of a compression circuit which will be responsible for capturing and transporting solar, environmental energy or geothermal, giving it to the fluid that needs to be heated. This Heat pump consists of a compressor in charge of sucking gas refrigerant from the evaporator and boost it at high pressure and temperature to an exchanger that acts as a condenser. To the the gas coming into contact with the fluid to be heated, at a lower temperature, the refrigerant changes from state to liquid phase giving its latent heat to the fluid to be heated. Once liquid, the refrigerant reaches the expansion valve located inside the equipment and by decreasing its pressure, evaporation begins.

Evaporation takes place in the evaporator, in this case combination of solar panels and geothermal collectors, so that they will work one or the other, depending on the conditions outside Thus, in favorable weather conditions and high temperatures, the evaporation of the fluid will take place in the solar panel or panels. However, in cold places or seasons Winter, where low temperatures are reached, you may not have place a sufficient exchange of energy through the panel or outer panels, so the fluid can not evaporate in these, will achieve this change of state in the collector or sensors geothermal

The outer panels are metallic and they have a circuit for fluid circulation refrigerant. In its surface they have to incorporate a coating that captures solar radiation.

Geothermal collectors are pipe networks buried, installed at a sufficient depth at which the Terrain temperature be stable.

The thermodynamic equipment will include in addition to compressor and expansion element, all elements auxiliary, electrical and control, necessary for correct functioning.

The unit control system will regulate the operation of the stopcocks that allow gas evaporant refrigerant, either in the solar panels or in the geothermal sensors. This control will be governed by temperature Exterior.

Likewise, the team can incorporate a device to reverse the thermodynamic cycle so that it acts as a water or air cooling system. In this way, the exchanger that acts as a condenser will be the evaporator, and the Evaporator will act as a condenser. In this mode of operation, the shut-off valves will close the gas passage to the panels, by what the geothermal sensors will act as a heat sink. This is because so that condensation takes place in a way Efficient energy must be dissipated in the fluid refrigerant, so when passing through the outer panels generally heated by solar radiation, the effect would be contrary to the desired.

The final aesthetics of the thermodynamic equipment with combined solar and geothermal evaporator, can be as diverse as designs are to be made of it always keeping the indispensable technical requirements for its operation.

We understand therefore that the improvement with accessory elements or different forms of the object here presents are not elements that come to create this invention another new and different with enough inventive novelty.

It is not considered necessary to make the content of this description for a subject matter expert can understand its scope and the advantages derived from the invention, as well as develop and implement the object of the same.

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Description of the drawings

To complete the description that is being performing and in order to help better compression of peculiarities of thermodynamic equipment with combined evaporator solar and geothermal we propose, is accompanied by this report descriptive, as an integral part thereof, of the drawings arranged on the following pages in which, with character explanatory and not limiting in any case, what has been represented next:

Figure 1, in which a scheme of thermodynamic equipment with combined solar evaporator and geothermal

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Description of a preferred embodiment

The detailed description of the embodiment preferred of the process of the present invention and of the elements that compose it, it is done in view of figure 1. In Figure 1 shows a diagram of the thermodynamic equipment with combined thermodynamic solar evaporator, which in this embodiment preferred will be used to heat and cool water. The team will It consists of a tank (4) intended to accumulate the desired water heating, with its corresponding input (9) and output (10) of water, so that the refrigerant gas sucked by the compressor (6) it is pushed into the tank, coming into contact with the water at through the condenser (5), the exchange taking place here energy required for the gas to pass to liquid phase, heating the water accordingly. Once liquid, the refrigerant reaches the expansion valve (7) located next to the compressor in the inside the thermodynamic equipment (1), which also houses the rest of auxiliary, electrical and control elements of the equipment. The expansion that takes place in the valve makes the fluid Start evaporation. When the outside temperature is higher at a preset value in the control means, they will keep open the stopcocks (8) that allow evaporation to of in solar panels (2). These panels are configured by a metal plate with absorber coating (12) that is placed in outside, where as the refrigerant crosses its inner circuit (11), captures the necessary heat from the environment to manage to evaporate

In case the outside temperature is reduced, the control means now open the cutting keys (8) which allow the passage of gas through the geothermal sensors (3). This geothermal evaporator is constituted by a circuit for the circulation of refrigerant fluid, installed under the ground at a determined depth

Whatever the evaporator in each case, the refrigerant must reach the compressor in a gaseous state, where close the circuit

In this preferred embodiment, the equipment counts also with a four-way valve (13) that will deal with reverse the thermodynamic cycle when you want to use the equipment to cool the accumulated water. In this case, the shut-off valves (8) located between both evaporators, will insulate the panels external, so that only the geothermal collector will act as condenser.

Finally, the team will constitute a unit compact (1), wrapped in an outer casing (14), and will incorporate the corresponding connection sockets (15) to connect the exterior panels, as well as geothermal collectors.

Claims (2)

1. Thermodynamic equipment with combined solar and geothermal evaporator, consisting of a thermodynamic equipment (1) composed of a compressor (6), an expansion element (7), a condenser (5) in contact with the fluid to be heated as well as the auxiliary elements necessary for its correct operation, and characterized by having a combined evaporator consisting of a solar panel (2) located outside, which will carry out the evaporation thanks to the collection of solar and environmental energy; as well as by a geothermal collector (3) constituted by an underground circuit, which guarantees evaporation when the external conditions do not allow them to occur in the solar evaporator, this process being regulated by the equipment control means, which will act on the corresponding shut-off valves (8) that allow the passage to the solar panel and / or to the geothermal evaporator. 2. Thermodynamic equipment with combined solar and geothermal evaporator, same as the previous claim and characterized by incorporating a system composed of a four-way valve (13) which performs the inversion of the thermodynamic cycle, allowing the equipment to be used for cooling of fluids, this process being regulated by the control means of the equipment, which at the same time that reverse the cycle, act on the shut-off valves (8) that allow insulating the panels, and only the gas at high pressure and temperature reach The geothermal evaporator.