DE2829456A1 - HEAT EXCHANGER - Google Patents

Description

282945

Heat exchanger

The present invention relates generally to heat exchangers and in particular on heat exchangers, which are used in systems for refrigeration and air conditioning, to transfer heat between to transfer different flow media.

It has been found that it can improve effectiveness or to reduce the costs of cold and heat generation, it is desirable to transfer heat between different types of flow media. Conventional heat exchangers only transfer heat between two flow media; normally used in such heat exchangers no intermediate or alternating flow media used to improve heat transfer or to supplement heat. For example, there are heat exchangers in a system for generating cold normally designed to transfer heat from a refrigerant within a tubular member to air passing through the tubular element and flows around it.

In some applications, such as refrigeration condensers, it is desirable to remove heat from the flow medium within a tubular element to a flow medium, for example water, to transfer or heat within a second tubular element

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from the refrigerant in the first tubular element to both the air flowing around the tubes and to that in the second tubular element Transfer element located water. Such cases occur when a source of water is available, its water has a lower temperature than the ambient air and is used to improve the heat transfer between the flow media can be. In shipping containers, for example, cooling water is available on board the ship as a heat exchange medium can serve, but this is not necessary if the container is transferred to another Is moved away from the ship.

It is similar in many heat pump applications desirable to be able to choose between a first flow medium, for example the heat pump refrigerant, with regard to the heat transfer, and a second flow medium, for example the room air, between the refrigerant and a medium for heat transfer from a heat store or between the flow medium from the heat accumulator and the ambient air. For example, when a room is cooled in an enclosure it is often advantageous to transfer heat from the room to a heat store, in which the heat can be stored in order to become one to be used later. However, if for some reason the heat accumulator cannot absorb enough heat to move the room in To cool the enclosure adequately, it can be beneficial to remove heat

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transferring the enclosure to the refrigerant of a heat pump and to use the heat pump in a known manner to move the heat out of the enclosure. In addition, it can also occur if the Temperature in the enclosure has a satisfactory value, it may be desirable to transfer heat between the heat accumulator and the ambient air outside the enclosure bypassing the enclosure, in this way to prepare the heat accumulator for later heating or cooling requirements.

In the above or similar cases, there can be many advantages can be achieved when proceeding in the manner according to the invention and a heat exchanger is used which has a plurality of independent Has coiled tubes or systems which are interconnected and connected to the ambient air via a series of spaced apart heat conducting ribs or plates are connected. The pipe systems can be nested or arranged in series in the flow path of the air that passes the fins, depending on whether in the particular Application of the heat exchanger Heat directly between the flow media present in the pipe systems, between the air and the flow media in the pipe systems or between the flow media should be transferred in the pipe systems with air as an intermediate medium for the heat exchange. In a preferred embodiment, the Heat exchanger on two independent coils, which are thermally connected to each other and spaced apart by a series of

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282945a

heat-conducting ribs thermally in connection with the ambient air stand. DBr heat exchangers can be used in a refrigeration system, with refrigerant through which a coil and through the other snake water flows so that between the water and the refrigerant, the water and the ambient air and the refrigerant and the ambient air heat can be exchanged.

Dar heat exchangers can also be used in a system for transmission and storage of heat use in which a first heat transfer medium, for example water, from a heat store, for example an insulated water tank, circulated through the first pipe system of the heat exchanger and a second heat transfer medium, for example a refrigerant of a heat pump, circulates through the second pipe system of the heat exchanger. Thereby, heat can between the two heat transfer media and be exchanged between one medium or both media and the ambient air. In one embodiment, the three-media heat exchanger is arranged outside an enclosure in connection with the outside coil of the heat pump, and in a second embodiment the three-media heat exchanger is located inside the enclosure and is in connection with the inner coil of the heat pump.

In the following description are exemplary embodiments of the invention explained in connection with the accompanying drawing. It show S

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282945Q

Fig. 1 is a perspective view of one designed according to the invention Finned tube heat exchanger together with a schematically shown device for air circulation;

FIG. 2 shows a diagram of an arrangement of the tubes in the heat exchanger of FIG. 1, the tubes of one tube system as dark circles and the pipes of the pipe system other than bright circles are shown;

3 shows a diagram of another arrangement of the tubes in the heat exchanger of Fig. 1, with the pipes of one pipe system as dark circles and the pipes of the other Pipe system are shown as light circles;

4 shows a diagram of a further arrangement of the tubes in the heat exchanger of Fig. 1, where again dark circles the pipes of a pipe system and light circles the pipes of the other pipe system;

FIG. 5 is an enlarged partial view of a section dBs in FIG. illustrated heat exchanger;

6 is a schematic representation of a system for heat transfer and storage, in which the one shown in FIG

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Heat exchanger is used in conjunction with the outside coil of a heat pump;

7 is a schematic representation of a system for heat transfer and storage, in which the heat exchanger shown in Fig. 1 in connection with the inner coil a heat pump is used;

Figure 8 is a schematic flow diagram for the in the systems 6 and 7 used three-medium heat exchanger, which is used to illustrate the flow direction of the media is used by the two independent flow circuits of the heat exchanger when heat from the heat storage to the Heat pump is transferred; and

Figure 9 is a schematic flow diagram for the in the systems 6 and 7 used three-media heat exchanger, which is used to illustrate the flow direction of the media through the two independent flow crises of the heat exchanger is used when heat is transferred from the heat pump to the heat accumulator is transmitted.

In FIGS. 1 and 5, a heat exchanger designed according to the invention is shown shown. Heat exchangers of this type can be used for application

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282945Θ

purposes are used in which air or a gaseous flow medium to be passed over or through a series of pipes containing a flow medium which is different from air Has temperature, and at which heat is to be transferred between the flow medium and the air. The heat exchanger shown has the additional option of transferring heat between two flow media in the pipes, regardless of whether air circulated through the heat exchanger or not.

The heat exchanger 2 is provided with two end plates 10, which are in one Are arranged at a distance from each other, which is determined by the space required for heat transfer in the specific application will. The end plates 10 and the one between the end plates 10 Space form a flow path for the movement of air through the heat exchanger 2. A fan shown schematically in FIG. 1 can be used to force air through the heat exchanger 2 in a direction parallel to the end plates 10. Store the end plates 10 a first system of tubes 14 extending through openings in the end plates and extend across the space between the end plates. The tubes 14 are normally secured in the end plates 10 by they are widened in the region of the end plates so that the openings in the end plates 10 between the outer walls of the tubes 14 and the bordering surfaces there is pressure contact. The tubes 14 are connected on the outside dBr end plates 10 via a series of end caps 16, so that in this way a sinuous or serpentine shape

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Path is formed by the heat exchanger 2 . In the same way as the first set of tubes 14, a second set of tubes 1G are supported by the end plates 10. The tubes 18 also pass through the space between the end plates 10 and are nested with the tubes 14 as is shown, for example, in FIGS. 2 and 3. As an alternative to this, the tubes 10 can also be arranged next to the tubes 14, as is shown in FIG. 4. End caps 20 connect the tubes 18 on the outside of the end plates 10 so that a tortuous or serpentine path through the heat exchanger 2 is also formed.

A series of thermally conductive ribs or plates 22 made of metal or Another suitable thermally conductive material is at intervals and aligned with one another. Between the end plates 10 arranged. Ribs 22 are supported by tubes 14 and 18 and are parallel to the end plates so that air can flow over the surface of the ribs. Each plate or rib 22 has a series of cutouts Openings, the position of which corresponds to the position of the tubes 14 and 18. When the tubes are inserted into the openings of the end plates 10 they are also pushed through the corresponding openings in the ribs 22. The fins are then used for storage and heat transfer purposes attached to the pipes so that there is a good thermal contact with them.

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2929A56

During operation of the heat exchanger, a first flow medium penetrates, for example refrigerant, entering tubes 14 at point 24, travels back and forth through the space between end plates 10 and passes finally at point 26. A second flow medium, for example Water, penetrates the pipes 18 at point 28, runs through the Space between the end plates 10 back and forth and exits the heat exchanger at point 30. The location of entry points 24 and 28 and exit points 26 and 30 is determined by the special arrangement of the pipes used. Any flow medium can flow from the bottom of the heat exchanger flow up to the top of the same or vice versa, or the flow medium can enter the heat exchanger on one side and exit on the other side. The heat conductive fins can heat in any direction between the tubes 14 and the tubes transfer. Therefore, heat can be transferred from the flow medium in the pipe system 14 to the flow medium in the pipe system 18 or in the opposite direction, i.e. from the flow medium in the pipe system 18 the flow medium in the pipe system 14. If, for example, a hot refrigerant through the pipe system 14 and cooling water through the pipe system 18 is conducted, heat is transferred from the flow medium in the tubes 14 via the ribs 22 to the flow medium in the tubes 18. In addition, the fins 22 can also transfer heat between each pipe system 14, 18 and the ambient air. Therefore, if in the above example If no cooling water is available, the fan 12 can be put into operation be to air with a lower "temperature than the refrigerant in the tubes 14 through the space between the end plates 10 in

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Direct contact with the ribs 22. The heat from the refrigerant is then transferred to the air via the ribs 22. In this mode of operation, the tubes 18 can be idle, but they can cool water to aid in the transfer of heat from the tubes 14. The tube assemblies shown in Figures 2 and 3 are particularly suitable for these alternative options.

For applications where air is the primary cooling medium and Water used to supplement heat transfer when the air temperature is particularly high can be that shown in FIG Find pipe arrangement use. The air first flows over that portion of the ribs 22 that is contained with the cooling water Pipe system 18 is in contact. The heat contained in the air is transferred via the fins 22 to the water in the pipes 18, whereby the temperature of the air is reduced. Thereafter, the air flows over that portion of the ribs 22 that is contained with the refrigerant Pipe system 14 is in contact, wherein the heat of the refrigerant is transferred via the fins 22 to the air. In this mode of operation In addition, heat is also transferred directly from the tubes 14 via the fins 22 to the tubes 18.

In Fig. 6 is a first system for heat transfer and storage shown schematically, which is designed according to the invention and in which the three-media heat exchanger 2 described above is used finds. The system includes a heat pump 110 which is a heat transfer

80988S / 0739 " ^1? "

medium, for example a refrigerant, and a heat storage 150, for example an insulated water tank containing a heat exchange medium such as water. A preferred one Embodiment of the invention is used in connection with a Solar collector used ISO. However, other heat sources can also be used can be combined with the heat transfer and storage system, or the system can be used alone.

The heat pump 110 includes a compressor 112, a changeover valve for the refrigerant, a switchable expansion valve 116, an inner coil 132 disposed within an enclosure 130, an outer coil 14 shown in FIGS. 5, 8 and 9 and shown in the Three-media heat exchanger 2 is mounted, as well as refrigerant lines 122,124,126 and 128. A water pump 151 is water from the Water tank 150 is pumped via a water supply line 152 to a water coil 18 shown in FIGS. 5, 8 and 9, which is in the three-media heat exchanger 2 is stored. The water circulates through the water coil 18 and then through the water return line 154 in FIG the water tank 150 back. The water return line 154 leads the water through a solar collector 160. An overflow valve 156 and a Evacuation pipes 158 are provided to keep the water out of the water snake 18 returned directly to the water tank 150 if the solar collector should be passed over. A gas fan 136 is provided to ventilate ambient air via the inner coil 132 to press the heat pump 110 while on

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2829450

Fan 146 serves to blow ambient air through both coils 14 and 18 of the heat exchanger 2 to lead.

The system shown in Fig. 6 is the three-media- Heat exchanger 2 to an air-water-refrigerant heat exchanger, which, like 5, 0 and 9 by linking the outside queue 14 of the heat pump 110 is formed with the water coil 18. The outside snake 14 is supported by the tube sheets 10 and extends between these, and the refrigerant of the heat pump 110 circulates through the coil 14 in both directions, as indicated by the dashed line

angedßutot

th lines in Figures 8 and 9j. The direction of flow of the refrigerant depends on the particular mode of operation of the heat pump 110. When the heat pump 110 heats, i.e. to heat the inside of the enclosure 130 is used, the refrigerant circulates through the queue 14 as shown by the dashed line in FIG is. When the heat pump 110 cools, i.e. is used to cool the space located in the enclosure 130, this circulates Refrigerant through the coil 14 as shown by the dashed line in FIG. 9. Between the same tube sheets 10 extends also the water snake 18, with water from the storage tank 150 passing through the snake in the direction indicated by the solid lines of FIGS. 8 and 9 indicated way circulates. The snakes 14 and 18 are each supported by the tube sheets 10 and in alternating vertical planes wear over the between the pipe plates 10 extending along the Snakes a multitude of common ribs 22.

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In the air-water heat exchanger 2 can KältBmittel heat between the various heat transfer media, the _f the heat exchanger pass warden transmitted. For example, by starting the heat pump 110 and water pump 150 and turning off the fan 146, heat can be exchanged between the heat pump refrigerant passing through coil 14 and the water passing through coil 18. By starting the heat pump 110 and fan 146 and shutting down the water pump 151, heat can be exchanged between the heat pump refrigerant passing through the coil 14 and the ambient air. Or heat can be exchanged between the water flowing through the coil 18 and the ambient air by starting up the water pump 151 and the fan 146 and shutting down the heat pump 110.

In various ways, heat can be put into the water tank 150 for storage purposes for later use. For example, when the water pump 151 is put into operation, water from Water tank 150 flow through solar collector 160, from this heat absorb and flow back to the water tank 150. In addition, when the heat pump 110 is in cooling mode, i.e. for cooling of the space located in the enclosure 130 is used, and excess Heat from the enclosure 130 is transferred by the heat pump 110 from the inner coil 132 to the outer coil 14, this excess Heat can be transferred to the water tank 150 by starting the water pump 151. The water pump 151 causes the

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2829453

Water from the water tank 150 through the water snake 18. During As the water passes through the water coil 18, it can absorb heat from the refrigerant flowing through the outer coil 14. This heated Water then flows either directly or through the solar collector 160 back to the water tank 150. That way, excess heat can be eliminated of the enclosure 130 led out of the enclosure and stored in the heat storage 150 for later use.

To better illustrate the manner in which the FIG The system shown for heat transfer and storage works, the system is used both when heating and when cooling the in the Enclosure 130 located space described.

In order to heat the space located in the enclosure 130, the Fans 136 and 146 are activated and the heat pump 110 is turned on Heating started. At the outer coil 14, the heat pump refrigerant absorbs heat from the ambient air as this air passes through the fan 146 is passed over the outer coil 14. The heat pump 110 then transfers this heat to the inner coil 132 where it is released to the ambient air which is passed over the queue by fan 136.

When the heat pump 110 does not have a sufficient amount of heat from the outside air can be transferred to the space located in the enclosure 130 in order to heat it in a satisfactory manner, the previously in the Heat introduced into the water tank 150 to support the heat pump 110

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be used. This is done by putting the water pump 151 into operation causes. The water pump 151 circulates water from the water tank 150 through the water coil 10 of the heat exchanger 2. The water carries heat with it, which had been stored in the water tank 150. When the water flowing through the water snake 18 becomes a large portion of that heat transferred to the refrigerant flowing through the outer coil 14 of the heat pump 110, which then this heat together with that of the Ambient air absorbed heat via inner coil 132 to the enclosure 130 transmits. When the space in the enclosure 130 by the heat transferred from the storage tank 150 via the heat pump 110 to the enclosure alone can be sufficiently heated so that it is not required to transfer heat from the outside air to the enclosure, the fan 146 can be disabled so that none Ambient air is passed more over the outer coil 14. After that Water has left the water snake 18, it can be via the water return line 154 flow through the solar collector 160 and then to the Water tank 150 flow back so that the radiant heat of the sun can be transferred to the water tank 150. If desired, the solar collector 160, water can be bypassed by actuating the overflow valve 156 from the water coil 18 via the bypass water line 158 to the water tank 150.

In order to cool the room located in the enclosure, the fans 136 and 146 are put into operation, and the heat pump 110 is put into operation for cooling. The heat pump refrigerant absorbs on the inner coil 132 Heat from the surrounding air, as this air passes through the blower

809885/0739 _ ₂₂ _

136 is passed over the inner queue 132. The heat pump 110 transmits this heat to the outside snake 14, where it is transferred to the ambient air, which is fed via the fan 146 over the snake 14 is released will. The water pump 151 can be put into operation, so that how discussed above, water from the water tank 150 through the water snake 10, absorbs heat from the refrigerant passing through the Outer coil 14 of the heat pump 110 flows, and then to the water tank 150 flows back. The mode of operation described above is not only for storing excess heat from the enclosure 130 for a later use of advantage, but also to improve efficiency of the heat pump 110 when the water in the water tank 150 has a lower temperature than that surrounding the outer coil 14 Air.

In Fig. 7 is the schematic structure of a second system for heat transfer and storage shown, which is designed according to the invention and in which the three-media heat exchanger explained above 2 is used. The system shown in Fig. 7 is

the

6 with the exception that in FIG. 7 the three-media heat exchanger 2, which encloses the cooling coil 14 of the heat pump 10, is arranged within an enclosure [not shown in FIG. 7) and that the cooling coil 132 the heat pump outside the enclosure is arranged. Therefore, is referred to with reference to the example shown in Fig. 7 system, the coil 14 as an inner coil of the heat pump and the coil 132 as AußBnschlange the heat pump. In addition, in the system shown in FIG. 7, the water return line 154 opens from the

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Heat exchanger 2 directly into the heat accumulator 150, and 'water from the heat accumulator is circulated directly between the storage tank and the solar collector 160 via a pump 161 and water pipes 162 and 163.

To the manner in which the system shown in Fig. 7 to Heat transfer and storage works, to better explain the system below, both heating and cooling of the space located in an enclosure (not shown in FIG. 7). In heating mode, the pump 161 is put into operation, so that the solar collectors 160 transfer radiant heat from the sun to the water contained in the storage tank 150. To the one in the enclosure To heat the room located, the pump 151 is put into operation to draw off the heated water via the water supply line 152, so that this circulates through the water coil 1Θ of the heat exchanger 2 can. The heat exchanger 2 is arranged in a room 142 in the vicinity of a suitable fan 146 which is switched on and Air passes through the heat exchanger 2, while the heated water is returned to the storage tank 150 via the return line 154. That transfers heated water circulating through the water coil 18 Heat on the air flowing past, so that in this way a heating of the space located in the enclosure in response to a thermostat control (not shown) which is used to control the Heat transfer system is connected in a known manner. The van The heat transferred to the solar collector 160, which is not required for immediate heating, is used in the water of the storage tank 150 saved for later use.

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When the amount of heat generated by the solar collector 160 corresponds to that in the storage tank 150 contained water is supplied, the required heating requirement can not meet, the heat pump 110 is put into operation Heat by circulating the heat pump refrigerant through the inner coil 14 in one common to commercially available heat pumps Way to transfer van outside to inside. The refrigerant can be separated from the heat pump 110 and the water from the storage tank 150 or are circulated in combination in order to transfer heat from the outside into the enclosure by circulating air through the heat exchanger 2, as required by the thermostat control.

To reduce the operating costs of the system, for example by using it from lower electricity tariffs at certain times of the day and night, the heat pump 110 can be used to store heat later use by being used by the heat pump refrigerant Heat absorbed on the outer coil 132 is transferred via the heat exchanger 2 to the storage medium in the tank 150. About warmth To transfer between the two flow media, the heat pump 110 is put into operation for heating, with heat from the outer coil is transmitted to the inner coil 14, the water pump 151 is actuated to circulate WassBr from the accumulator 150 through the water coil 18, and the flow of air caused by the fan 146 is stopped. As can be seen from Fig. Θ, in which the usual flow symbols @ and © for Indication of a flow into and out of plane B is the flow path of the two heat exchange media parallel. Heat is then transferred from the outside to the heat storage medium

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transferred to save them up to a point in time when they is needed, or for its later use in periods when the energy box for operating the heat pump 11D at a higher level Level.

Flow during the cooling of the space located in the enclosure the heat exchange media against each other, as shown in Fig. 9, in which the same flow symbols as in Fig. B are used. That Refrigerant in the heat pump 110 and / or the water in the storage tank 150 are routed through their respective coils 14 and 18 of the heat exchanger 2 circulated under the control of the thermostat control system. When the temperature of the water in the storage tank 1bO is so high that Heat from the enclosure is supplied to the water, the pump is switched on, which circulates water through the coil 18, while the Fan guides air through the heat exchanger 2, so that a heat transfer between the air and that by the ribbed Snake pouring water is possible. Coolant is circulated by the heat pump 110 through the inner coil 14 in order to draw off heat from the enclosure to the outside and, in this way, the heat from the water coil to replenish withdrawn heat, if necessary.

In a similar way to how heat is transferred to the storage medium, can heat through the heat pump 110 in times of day from the heat storage medium deducted when the energy boxes for operating the heat pump are at their lowest. A transfer of heat from the storage

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medium during times of low energy boxes allows water to pass through the water snake during times of higher energy boxes 18 of the heat exchanger 2 can be circulated in order to use the heat pump 110 for cooling the space located in the enclosure to support vein to replace. When removing heat from the storage medium, the fan is not in action to air to pass through the heat exchanger 2, but is out of service while the vVärmetauschmedien through their respective coils 14 and 18 circulated for heat transfer between the two media will.

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Claims (14)

Carrier Corporation Carrier Tower Syracuse, New York 13221 / USA D-119 ■. June 30, 1978 Claims / Ί. Three-media heat exchanger for heat transfer between a plurality of flow media, characterized by two end plates (10) which are spaced from each other, so that an air movement can take place between \ A one-piece, a first pipe system (14) and a second pipe system (ΐθ), which are each supported by the end plates (1O) and extend back and forth in the space between the end plates, the first and second pipe systems each providing an independent flow path for the flow media, as well as devices (22) which are in thermal contact with the air moving between the end plates (ΐθ) in order to thermally connect the first and second pipe systems (14,18) to one another and for heat transfer between the flow media in the pipe systems and between the air and the flow media in the pipe systems to enable. 2. Heat exchanger according to claim 1, characterized in that the Facilities for the thermal connection of the pipe systems 809885/0739 ORIGINAL INSPECTED comprising thermally conductive material (22), which moves with the air moving between the end plates (1O), with the first Pipe system (14) and with the second pipe system (18) is in thermal contact, so that u'arm between the first pipe system and the air moving between the end plates, between the second pipe system and that between the end plates moving air and can be transferred between the first pipe system and the second pipe system. 3. Heat exchanger according to claim 2, characterized in that the thermally conductive material is a number of spaced apart comprises thermally conductive ribs (22) which are arranged between the end plates (iü) and parallel to these and with the first Pipe system (14) and the second pipe system (1S) are in contact and are stored by them, in order in this way a Establish a heat-conducting path between the pipe systems. 4. Heat exchanger according to claim 3, characterized in that it des further means (12) for the movement of air between the two end plates (1O) in contact with the row of heat conducting Includes ribs (22). 5. Heat exchanger according to claim 4, characterized in that a hot refrigerant through the first pipe system (14) and cooling water through the second pipe system (ΐθ), so that heat from the hot refrigerant to the cooling water between the 809886/0739 -3- Air flowing through the end positions or both on the cooling water and the air flowing through between the end plates is transferred. 6. One-piece three-media heat exchanger for heat transfer between a refrigerant and air or water, characterized by two end plates (1O) which are arranged at a distance from one another so that they allow air to move between the plates, a first pipe system (14), which is supported by the end plates (1O) and extends back and forth in the space between the end plates, the first pipe system (14) providing a flow path for a refrigerant circulating back and forth between the end plates (1O), a second pipe system ( 18) supported by the end plates (1O) and extending back and forth in the space between the end plates, the second pipe system 18 providing a flow path for water circulating back and forth between the end plates 10 and a series of heat-conducting ribs C ²² ) ι which are arranged between the end plates (1O) in thermal contact with the first pipe system (14) and the second pipe system (1B) and being in contact with the air moving between the end plates to enable heat transfer between the refrigerant in the first pipe system and the water in the second pipe system or the air moving between the end plates. 809885/0739 1829456 7. System for transferring and storing heat for heating and cooling of a room located in an enclosure and for use with a flow medium suitable for heat transfer, characterized by a heat pump (1O) for the transfer of heat between two points that use a refrigerant, has a compressor (12), an expansion valve (16) and a switching valve (14] for the refrigerant, a heat accumulator (15), which is able to store the flow medium suitable for heat transfer, a three-media heat exchanger (2) for implementation a heat exchange between the refrigerant and the flow medium, the refrigerant and the ambient air and the Flow medium and the ambient air, first connection devices (152,154), the heat storage and the three-media heat exchanger connect with each other so that the flow medium circulate and heat between the heat accumulator and the three-media heat exchanger can transmit, and second connection devices (126,12b), which the heat pump and the three-media heat exchanger connect together so that the refrigerant circulates and heat is transferred between the heat pump and the three-media heat exchanger can. 8. System according to claim 7, characterized in that the heat exchanger (2) comprises the following: a first thermally conductive flow path [ΐθ) which connects to the first connection means (152,154) is connected so that the suitable for heat transfer -S- 809866/0739 Flow medium can circulate through the first flow path and transfer heat to the first flow path, a second thermally conductive flow path (14) connected to the second connection means (126,128) is connected so that the Refrigerant can circulate through the second flow path and transfer heat to the second flow path, and heat transfer means (22) which are in thermal contact with the first Stromungsweg (ΐθ), the second flow path (14) and the ambient air are, so that heat between the first flow path and the second flow path, between the first flow path and the Ambient air and between the second flow path and the ambient air can be transferred. 9. System according to claim 8, characterized in that the three-media heat exchanger (2) is arranged outside the enclosure (30 J. 10. System according to claim 8, characterized in that the three-media heat exchanger (2) · is arranged within the enclosure (3θ). 11. System according to claim 9 or 10, characterized in that it des further auxiliary equipment (ISO) for heating includes that for Heat transfer can heat suitable flow medium. 12. System according to claim 11, characterized in that the auxiliary devices include a solar collector (I6O), the radiant heat 809885/0739 282945Θ dsr üanne on the flow medium suitable for heat transfer can transfer, 13. System according to claim 12, characterized in that dt: ß dor XIrηιε memory a isaliortsn tank (150) comprising one liquid may contain, and that the flow medium suitable for V / heat transfer comprises a liquid. 14. System according to claim 13, characterized in that the first Flow path a first serpentine heat exchanger coil (ΐθ) includes that the second flowv / eg a second serpentine-shaped IV heat exchanger coil (14) falls over and that the first and second heat exchanger coils are arranged in alternating parallel vartical planes and the heat transfer devices comprise at least one rib (22) which is common to the first and second heat exchanger coils (iü, 14). - 7 - 809885/0739