ES2390049A1 - Air conditioning system for stays. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Hvac system for stays. System comprising a circuit (1a, 1b) formed by at least one hollow plane panel (3) with a chamber (4a, 4b) for housing a thermodynamic fluid (2a, 2b), for its arrangement in walls, ceiling and floor of the stay to be acclimatized and a heat exchanger (6a, 6b) connected to said chamber, (4a, 4b). The system enables the thermodynamic fluid (2a, 2b) to pass from a liquid to a gaseous state or vice versa after the absorption or transfer of heat to the flow of heat from the outside. The thermodynamic fluid (2a, 2b) with the changed state circulates towards the heat exchanger to recover the previous state and return to the chamber (4a, 4b). (Machine-translation by Google Translate, not legally binding)

Description

AIR CONDITIONING SYSTEM FOR STAYS.

Object of the invention

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The present invention relates to an air conditioning system

for stays, which allows to acclimatize closed enclosures such as

offices, domestic rooms and others, avoiding heat exchange

Between the interior of the room. This air conditioning is achieved through a

active thermal insulation as a barrier to heat transmission between the

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interior and exterior of the room by walls, ceiling and floor.

Field of application of the invention.

This invention is applicable in the air conditioning industry

domestic, office and building in general.

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Background of the invention.

Normally in air conditioning of enclosures it is acted by contributing or

extracting heat from the space to be heated, limiting gains or losses

of heat by installing passive insulators on the walls and in

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lesser extent floors and ceilings.

Due to the heat transfer through the walls,

floors and ceilings, the internal surface temperature of said walls, floors and

ceilings are lower than the temperature of the stay in winter and higher than the

temperature of the stay in summer.

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This way of acting only reduces the amount of power

cold or heat to use in air conditioning, but produces the sensation

cold in winter, due to an internal surface temperature of the wall

less than that of the room, created by radiation between the wall and the different

internal elements, including people and by convection (shot

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descending) with the air of the room. In summer it happens the opposite, the

internal surface temperature of the wall is higher than that of the room, what

which causes a sensation of heat by radiation between the wall and the various internal elements, including people.

These effects are minimized by increasing the insulation of the walls or by increasing the ambient temperature of the room above the recommended comfort values in winter, and decreasing the temperature of the stay in summer below the theoretical values recommended.

A thermal barrier effect of the surfaces of a room can be achieved using a pipe that runs through all the walls, floors and ceilings and through which water circulates at the desired temperature (hot in winter and cold in summer) as it is done in heating and cooling underfloor heating. This technique involves two consistent defects, consisting in that the water temperature is not constant throughout the circuit, which already generates temperature differences between the different points of the walls, ceilings and floors, producing the effects described above; and the constant electrical consumption due to the pumps necessary to move the water through the circuits.

The applicant of the present invention is unaware of the existence of a background that satisfactorily solves the problem presented.

Description of the invention

The air conditioning system for rooms, object of this invention, has some technical features designed to reduce or cancel the thermal transmission through the walls, ceiling and floor of the room in an effective and active way.

According to the invention, the air conditioning system comprises a circuit formed by at least one hollow flat panel with a thermodynamic fluid housing chamber, for its arrangement in walls, ceiling and floor of the room to be acclimatized and a heat exchanger connected to said camera. The system allows the fluid

thermodynamic changes from a liquid to a gaseous state or vice versa after

absorption or transfer of heat to the flow of heat from outside.

The thermodynamic fluid with the changed state circulates towards the

exchanger to recover the previous state and return to the chamber.

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The invention takes advantage of the ability of fluids to

perform the change of state at a constant temperature, depending on the

Pressure.

The thermodynamic fluid can be any fluid that has the

range of desired state change for application at pressures not

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excessive to optimize the mechanical resistance of the panel. For example, for

air conditioning (from 20 ° C to 25 ° C) you can use the Solkane® SES36 which has

a range of state change pressure for these temperatures from

0.58 to 0.65 absolute bars, which corresponds to a slight depression

respect to the atmosphere).

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Thus, for example, in summer the panel chamber comprises the

thermodynamic fluid in a liquid state, and the heat flow entering the

outside the enclosure through the wall causes the passage to a gaseous state or

evaporation of said thermodynamic fluid, absorbing said heat flow.

The thermodynamic fluid in the gaseous state passes to the exchanger where

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returns to a liquid state to return to the panel chamber in a

closed circuit.

In turn, in winter the panel chamber contains the fluid

thermodynamic in gaseous state and yields heat to the outside preventing it from being the

stay the one that reduces its temperature, producing the passage of the fluid

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Thermal gas state to the liquid state. This thermodynamic fluid in

liquid state circulates to the exchanger where it goes to gaseous state to

return to the panel chamber and restart the circuit.

Several of these panels arranged covering the walls and in

smaller amount the roof and floor are capable of thermally insulating and

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active form a room keeping the interior temperature constant

   Regarding the outside environment.

A panel with a single camera connected to the exchanger is

suitable for regulating the temperature in winter or summer depending

of the arrangement of said exchanger with respect to the camera. So, if the

exchanger is arranged above or at the top of the chamber,

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said exchanger will collect the thermodynamic fluid in a gaseous state

returning it in a liquid state to the chamber, ideal for cooling a

stay in summer In turn, if the exchanger is arranged in by

under or at the bottom of said chamber, said exchanger

collect the thermodynamic fluid in a liquid state by returning it in a state

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gaseous to the chamber, ideal for heating in winter.

In one embodiment the panel comprises two circuits, arranged

parallel between their major faces and in the opposite direction. This arrangement

It allows the same panel to be functional both in winter and in summer.

In an example of integral realization, a home comprises

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two panel circuits covering all surfaces to be heated, to

to know:

The first panel circuit works full of fluid

thermodynamic in liquid state in the chambers, except for a

exchanger at the top, where the fluid should be able to go

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thermodynamic in gaseous state when evaporation occurs in case of

Receive a heat contribution. A cooling equipment extracts the collected heat

and transported by the thermodynamic fluid, condensing it and

Restoring circuit balance.

The second circuit of panels works full of fluid

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thermodynamic in gas state, except for an exchanger in the part

lower, where the generated liquid should be able to go when the

condensation of said thermodynamic fluid, in case of receiving a contribution from

cold. A heating equipment provides heat transferred by the fluid

thermodynamic, evaporating it and restoring the balance of

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circuit.

   These two panel circuits are incorporated into the

insulation of the walls, floors and ceilings, but near its inner face, of

so that any contribution or loss of heat from or to the outside is

minimized by thermal insulation, drained or provided by the system and

Not for the stay to be heated.

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In one embodiment, the panel comprises integrated into a single

structure the chamber and heat exchanger, presenting this

heat exchanger means of cooling or external heating

with which it performs evaporation or condensation operations that

It allows the renewal of the process carried out in the circuit.

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In this case, the panel with the built-in exchanger will

you can use for the cooling or heating of the room according to the

exchanger be arranged at the top or bottom. Therefore it

the operation of the panel varies just by inverting it vertically,

the liquid moving from the top to the bottom by gravity.

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In one embodiment the system comprises pipes of

interconnection of the cameras of different panels, enabling

thermodynamic fluid transfer in different states providing

a heat flow between said panels.

The aforementioned interconnection pipes may comprise one or

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two conduction tubes of the thermodynamic fluid.

If the installation is done with a single circulation pipe of the

thermodynamic fluid in the form of gas and liquid simultaneously, this

pipe must have the appropriate diameter to allow them to circulate to it

time and in opposite directions without impediments or siphon formations or

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Similar.

In another alternative embodiment, in which the installation

It has two pipes, it must be done so that the gas flows out

upper and the liquid return through the lower part of the chamber or the

exchanger

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These two types of pipe and panel installations also

   They allow the heat to be transported from some areas to others of the enclosure or housing.

For example, the heat provided by the insolation of a wall located to the south, allows heating a wall located to the north, pumping the heat absorbed by the panel filled with thermodynamic fluid in a liquid state to the panel filled with thermodynamic fluid in a gas state.

In another embodiment as many circuits with different panels can be made as rooms at different temperatures are needed or desired, for example the bathrooms need a circuit calculated at a temperature higher than the rooms in winter.

The fixing means of the panels are diverse depending on the location in which they are to be placed. For example, in one case the panels comprise lugs for fastening them to walls by means of screws, plugs or the like. Another solution that is adoptable comprises fixing guides on which the panels with the possibility of displacement when dilated or contracted are mounted.

It is also possible to fix the panels by means of a system of guides, which are fixed to the structure and which allows the panel to expand and contract, sliding along said guide.

The panels can be of standardized measurements, for example 2000x1000 mm, with sockets for the exit and inlet of standardized liquid and gas, which allow their installation vertically or horizontally as desired. The connections can be threaded or welded together or with interconnecting pipes. Unused connections can be condemned by plugs or end panels.

In another physical embodiment, the panels are custom made to order, with the necessary sockets to form the necessary connections provided in the project.

The system is also suitable for use in refrigerating cold rooms or freezing chambers. The panels would be manufactured and transported empty of thermodynamic fluid, and the installer fills them in situ once the

installation.

Description of the figures.

To complement the description that is being made and in order to facilitate the understanding of the characteristics of the invention, a set of drawings is attached to the present specification in which, for illustrative and non-limiting purposes, the following has been represented:

Figure 1 shows a schematic representation of a system with two simple panel circuits connected to each other and with the corresponding heat exchanger through a single pipe.

Figure 2 shows a schematic representation of a system with two simple panel circuits connected to each other and with the corresponding heat exchanger via pairs of pipes.

Figure 3 shows a schematic representation of the system with several double panels, which comprise the integrated heat exchangers together with the thermodynamic fluid chambers.

Figure 4 shows a sectioned detail of a wall in which a double chamber panel has been placed next to the inner lining and separated from the outer wall by thermal insulation, the chamber being in operation to absorb outside heat in summer.

Figure 5 is analogous to the previous one but the chamber is activated to give heat to the outside in winter.

Preferred Embodiment of the Invention

As can be seen in the referenced figures, the system comprises circuits (1a, 1b) for the circulation of a thermodynamic fluid (2a, 2b), in this case the Solkane® SES36 refrigerant fluid from Solvay, specifically. These circuits (1a, 1b) comprise panels (3) for their arrangement in the walls, ceiling and floor to exert an active insulation against the heat flow between the interior and the exterior by heating said room. These panels (3) internally have a chamber (4a, 4b) for accommodating the thermodynamic fluid (2a, 2b) in a liquid and gaseous state in different proportions, so that, by means of the heat flow from outside the room, said fluid thermodynamic (2a, 2b) change state, yielding or absorbing heat. This transfer or absorption of heat by the thermodynamic fluid (2a, 2b) prevents the interior of the heated room from exchanging heat with the outside, maintaining its constant temperature. Said chambers (4a, 4b) are connected by pipes (5a, 5b) with heat exchangers (6a, 6b) where the thermodynamic fluid (2a, 2b) is returned to the original state. These heat exchangers (6a, 6b) act as evaporator or condenser according to the circuit configuration (1a, 1b). In this case, the system comprises two circuits (1a, 1b) to achieve air conditioning in both summer and winter. The circuit (1 a) presents the heat exchanger (6a) in a superior position with respect to the panels (3) for collecting the thermodynamic fluid (2b) gas produced in the chambers (4a) of the panels (3) and condense it in thermodynamic fluid (2a) liquid that is returned by gravity to the panels (3). This circuit (1a) is ideal for the air conditioning of the stay in summer, by means of the assistance of cooling means of the heat exchanger (6a).

In turn, the circuit (1b) presents the heat exchanger (6b) in a lower position with respect to the panels (3) for the collection of thermodynamic fluid (2a) liquid that is produced in the chambers (4b) of the panels ( 3) and evaporate it in thermodynamic fluid (2b) gas that is returned by gravity to the panels (3). This circuit (1b) is ideal for the air conditioning of the room in winter, by means of heating means of the heat exchanger (6b).

In figure 1, it is represented as the connection between the chambers of the panels (3) of each circuit (1a, 1b) and their respective exchangers (6a, 6b)> use pipes (5a) formed by a single diameter conduit considerable, so that through said pipes (5a) the flow of thermodynamic fluid (2a, 2b) passes simultaneously in the gas state, once evaporated, and in the liquid state, once condensed, in the opposite direction.

In figure 2, it is represented how two circuits comprise the connection of the heat exchangers (6a, 6b) by means of two independent pipes (5a, 5b), so that the thermodynamic fluid (2a, 2b) passes through each pipe (5a , 5b) in one state only.

Figure 3 shows how the circuits (1a, 1b) comprise the heat exchangers (6a, 6b) integrated in each of the panels

(3) together with the cameras (4a, 4b). The panels (3) presenting connection means (7a, 7b) to an external cooling or heating.

Figures 4 and 5 show the installation of a panel (3) on the wall (8) of a room. In both figures the panel (3) is disposed between the inner lining (9) of said wall and the conventional thermal insulation (1 O) of the wall (8). In both cases the panel (3) internally has two chambers (4a, 4b) for housing the thermodynamic fluid (2a, 2b) in different proportions. The chamber (4a) comprises a greater proportion of thermodynamic fluid (2a) in a liquid state to absorb heat flow from the outside. The chamber (4b) comprises a greater proportion of thermodynamic fluid (2b) in the gaseous state to yield heat flow outwards in winter.

More specifically, Figure 4 shows the operation of the panel (3) in summer, when the chamber (4a) is active and produces thermodynamic fluid (2b) gas, which is conducted by the connection (11a) to the heat exchanger (6a) .

In turn, Figure 5 shows the operation of the panel (3) in winter, when the chamber (4b) is active and produces liquid thermodynamic fluid (2a), which is conducted by the connection (11 b) to the heat exchanger ( 6b).

Once the nature of the invention has been sufficiently described, as well as a preferred embodiment, it is stated for the purpose.

It is appropriate that the materials, shape, size and arrangement of the described elements may be modified, provided that this does not imply an alteration of the essential features of the invention that are claimed below.

Claims (5)

1.-Air conditioning system for rooms, characterized in that they comprise a circuit (1 a, 1b) formed by at least one hollow flat panel (3) with a chamber (4a, 4b) housing a thermodynamic fluid (2a, 2b) , for its arrangement in walls, ceiling and floor of the room to be acclimatized and a heat exchanger (6a, 6b) connected to said chamber, (4a, 4b) being the system operatively suitable for thermodynamic fluid (2a, 2b) it passes from a liquid to a gaseous state or vice versa after the absorption or transfer of heat to the heat flow from the outside, and that the thermodynamic fluid (2a, 2b) with the changed state circulates towards the heat exchanger (6a, 6b) to recover the previous state and return to the camera (4a, 4b). 2. System according to claim 1, characterized in that the panel (3) comprises two circuits (1a, 1b), arranged parallel between their major faces and in the opposite direction. 3. System according to any of the preceding claims, characterized in that the panel (3) comprises integrated in a single structure the chamber (4a, 4b) and the heat exchanger (6a, 6b), presenting this heat exchanger (6a , 6b) connection means (? A, 7b) to external cooling or heating. 4. System according to claim 3, characterized in that the panel (3) presents the heat exchanger (6a, 6b) in an upper position or lower with respect to the chamber (4a, 4b), to cause the circulation of liquid or gas by gravity, according to cooling or heating. 5. System according to any of the preceding claims, characterized in that it comprises interconnecting pipes (5a, 5b) of the chambers (4a, 4b) of different panels (3), enabling the transfer of
thermodynamic fluid (2a, 2b) in different states providing a heat flow between said panels (3).