Temperature control system for controlling the temperature of at least one room in a building, method for controlling the temperature of at least one room in a building, building, and air-conditioner

Abstract

The present application relates to a temperature control system (1) for controlling the temperature of at least one room (2) in a building (3), comprising a heat / cold generator (4) for controlling the temperature of a heating medium (5), at least one central medium storage means (6) connected to the heat / cold generator (4) for storing the heating medium (5) temperature-controlled by the heat / cold generator (4), at least one heating means (8) for arranging in the at least one room (2), and a pipeline system (7) operatively connected to the medium storage means (6) for conveying the temperature-controlled heating medium (5) from the medium storage means (6) to the at least one heating means (8), wherein the heat / cold generator (4) is intended and configured to heat or cool the heating medium (5) as required. To provide a temperature control system and a method for controlling the temperature of a room, which can be operated with maximum possible efficiency, at least one air-conditioner (9) is proposed for arranging in the at least one room (2), wherein the air-conditioner (9) is intended and configured to cool room air in the room (2), wherein the air-conditioner (9) has a refrigeration unit (10), wherein the air-conditioner (9) is operatively connected with the pipeline system (7) in such a way that waste heat arising at the air-conditioner (9) as a result of cooling operation of the air conditioner (9) may be transferred to the heating medium (5) and the heating medium (5) heated as a result of the transfer of waste heat may be carried away towards the medium storage means (6) using the pipeline system (7).

Description

Temperature control system for temperature control of at least one room of a building and method for temperature control of at least one room of a building and building and air conditioning unit Description

[0001] The present application relates to a temperature control system for controlling the temperature of at least one room of a building according to the preamble of claim 1. Furthermore, the present application relates to a method for controlling the temperature of at least one room of a building by means of such a temperature control system according to claim 8. Furthermore, the present application relates to a building according to the preamble of claim 11. Finally, the present application relates to an air conditioning unit according to the preamble of claim 13.

[0002] The temperature control system of the present invention is intended and configured to heat or cool at least one room of a building. In the present application, the focus is on a cooling operation in which the air in the respective room is cooled. Cooling can, in particular, be carried out decentrally, with an air conditioning unit of the temperature control system being arranged in each room, by means of which the air can be cooled. In particular, only some of the rooms in the respective building can be equipped with an air conditioning unit, so that the temperature control system is not necessarily configured to cool all rooms in the building simultaneously.As a rule, the temperature control system of the present invention is nevertheless designed to heat at least substantially all rooms of the building (at least those that are occupied or otherwise used daily), wherein the temperature control system typically comprises a plurality of heating devices arranged in the respective rooms. State of the art

[0003] A temperature control system is known, for example, from European patent EP 1 136 760 B 1. This comprises a boiler and a cooling device, wherein the boiler and the cooling device are operatively connected by means of a piping system to both a heating device and an air conditioning unit, which are arranged together in a room of a building to be temperature-controlled. A thermostat is arranged in the room, by means of which a user of the temperature control system can set a target temperature for the room air. Depending on the conditions, either either the heating device or the air conditioning unit is operated, i.e. the room air is either heated or cooled.

[0004] In cooling mode, the cooling device of the temperature control system is operated, supplying the piping system with cooled heating medium. The cooled heating medium is fed via the piping system to a heat exchanger in the air conditioner, which interacts with a fan. At the heat exchanger, thermal energy from the room air is transferred to the heating medium, thereby heating the heating medium and cooling the room air as desired. The thus heated heating medium is returned via the piping system to the cooling device, where it can be cooled again.

[0005] The system has the disadvantage that the cooling capacity of such an arrangement is low, since the heat transfer from the room air to the heating medium is physically limited.

[0006] For cooling the air in a room, it is well known to use mobile air conditioning units, which can be transported between different rooms of a building as needed. These air conditioning units are typically equipped with a compression chiller. The waste heat generated by the condenser of the compression chiller is typically dissipated through a flexible air hose. For this purpose, the air hose works in conjunction with a fan that generates a volumetric air flow. The air hose can be mounted, for example, on a window opening in the room, so that the waste heat is released into the environment through the air hose.

[0007] This type of room air cooling has the disadvantage that the discharge of waste heat through a room opening into the outside air leads to a negative pressure in the room. This results in outside air being "sucked in" from outside the building envelope and transported into the building. This inevitably causes the thermal energy stored in the outside air to enter the building, thus at least partially negating the cooling effect of the air conditioning unit. This is correspondingly disadvantageous in terms of energy consumption.

[0008] To avoid this problem, so-called split air conditioning systems are also known, which comprise an indoor unit and a physically separate outdoor unit. The circuit of the compression refrigeration machine of such an air conditioning system is designed such that the evaporator is located on the indoor unit located in the respective room and the condenser is located on the outdoor unit located outside the building envelope. The indoor unit and the outdoor unit are connected to each other via two medium lines, so that the working medium of the compression refrigeration machine between the indoor unit and the outdoor unit. The medium lines penetrate the building envelope from the inside to the outside and vice versa. The waste heat, which is absorbed by the evaporator from the air in the room to be cooled, is transported via the working medium to the outdoor unit, where it is released into the environment.

[0009] The disadvantage of split air conditioning systems is that they must be permanently installed, meaning each room to be cooled must be equipped with a fixed air conditioner. Furthermore, each air conditioner usually works with its own outdoor unit, meaning that the building is equipped with numerous outdoor units on its facade. Task

[0010] The present application is therefore based on the object of providing a temperature control system and a method for temperature control of a room which can be operated as efficiently as possible. Solution

[0011] The underlying object is achieved according to the invention by means of a temperature control system having the features of claim 1. Advantageous embodiments emerge from the subclaims and the description.

[0012] The temperature control system comprises a heat / cooler for controlling the temperature of a liquid heating medium. The heat / cooler can, in particular, be a heat pump, for example an air / water, water / water, or brine / water heat pump. The heat / cooler is intended and configured to heat and cool the heating medium as needed, with either heating or cooling taking place depending on the operating mode. The heat / cooler is advantageously designed centrally for the building, so that the temperature control system has only one heat / cooler. The heating medium is preferably water.

[0013] The temperature control system further comprises at least one central medium storage tank, which is fluidically connected to the heat / cooling generator. The medium storage tank is intended and configured to store heating medium tempered by the heat / cooling generator. The latter can be formed, in particular, from water. In technology, such a medium storage tank is used, for example, as a buffer tank. and can, for example, have a volume ranging between 500 liters and 2,000 liters. If the medium storage tank is also used to temper domestic water, for example by means of a spiral heating coil extending within the interior of the medium storage tank, such a medium storage tank is sometimes referred to in technology as a combination storage tank. The medium storage tank serves to store the heating medium for sub-distribution within the building. This can be achieved, for example, by creating temperature stratification, which occurs automatically in a sufficiently quiet system. In such a storage tank, the extraction points for the heating medium are advantageously arranged at different heights on the storage tank, depending on the desired temperature levels. The storage tank is, for example, and preferably, located on the lowest floor of the respective building.

[0014] To accomplish the sub-distribution, the temperature control system further comprises a piping system operatively connected to the medium storage tank. Such a piping system, which can also be referred to as a heating piping system, can, for example, comprise plastic pipes or copper pipes in a conventional manner. It serves to conduct the heating medium stored in the medium storage tank from the medium storage tank through the building, typically vertically along duct shafts and horizontally in the floor of the respective storey, to at least one heating device of the temperature control system and, from the heating device, back to the medium storage tank. To prevent a temperature loss of the heating medium as it is conducted along the piping system, the piping system is typically insulated at least in sections with known insulating elements.

[0015] In a typical distribution system in a building, the piping system comprises a flow and a return line, wherein the flow is used to supply the tempered heating medium to the at least one heating device, typically a plurality of heating devices, and the return line is used to conduct the heating medium from the at least one heating device or devices back to the medium storage device. In a building comprising a plurality of rooms, the temperature control system typically comprises a plurality of heating devices, wherein, for example, each room can be equipped with at least one heating device, possibly several heating devices. The respective heating device acts, for example, as a liquid / air heat exchanger, wherein an exchange of thermal energy takes place between the gaseous room air and the liquid heating medium. The heating device serves to heat solid building materials, such as screed or a floor. In practice, a heating device is typically a radiator or underfloor heating.

[0016] According to the invention, the temperature control system comprises at least one air conditioning unit, which is intended to be arranged, preferably entirely, within the at least one room of the building and is designed to cool the room air of the room. The air conditioning unit can be suitable for heating the room air of the room, if desired. However, a cooling function for cooling the room air is of primary importance in this case. Accordingly, it is also possible for the air conditioning unit to not have a heating function for heating the room air.

[0017] The air conditioning unit can be operated, in particular, by means of electricity. As explained above, the building can have a plurality of rooms, wherein the temperature control system can comprise a plurality of air conditioning units. In principle, it is nevertheless sufficient for the inventive success if the temperature control system has only one air conditioning unit. In particular, it is not necessary to equip the temperature control system with a number of air conditioning units corresponding to the number of rooms in the building. This is particularly unnecessary if the air conditioning unit, according to the description below, is preferably formed by a mobile air conditioning unit that can preferably be moved from one room in the building to another without the need for tools.Accordingly, in a preferred embodiment, the temperature control system is configured to control the temperature of a specific number of rooms in the building, wherein the temperature control system comprises a comparatively smaller number of air conditioning units.

[0018] The air conditioning unit has a refrigeration machine, so that the air conditioning unit is designed to cool the air in the respective room. The air conditioning unit is operatively connected directly or indirectly to the piping system in such a way that waste heat generated by the air conditioning unit as a result of cooling operation of the air conditioning unit can be transferred to the heating medium. For example, and preferably, the air conditioning unit can be connected to one or more pipes of the piping system in the room of the building in which it is located, for example by means of branch lines described below as advantageous. The operative connection between the air conditioning unit and the piping system is further designed in such a way that the heating medium heated as a result of the transfer of the waste heat can be discharged by means of the piping system in the direction of the medium storage unit. In this way, the heat generated locally in the respective room waste heat generated by the air conditioning unit is dissipated via the piping system. For the heat transfer of the waste heat from the air conditioning unit to the heating medium, the air conditioning unit can, in a preferred embodiment, comprise at least one heat exchanger, by means of which heat energy, for example from a working medium of the air conditioning unit, can be transferred from the air conditioning unit to the heating medium. In this embodiment, the heating medium is fed to the air conditioning unit, passed through the heat exchanger and then discharged from the air conditioning unit again. The piping system and / or the air conditioning unit can have at least one pump which is provided and configured to circulate the heating medium in the piping system. The air conditioning unit is preferably arranged at such a distance from the medium storage unit that a line length of the piping system from the medium storage unit to the air conditioning unit orfrom the air conditioning unit to the medium storage tank is at least 5 m, preferably at least 10 m.

[0019] During operation of the temperature control system, the heating medium can be cooled by means of the heat / cooler, for example to a temperature in the range between 10°C and 30°C. The temperature of the heating medium should in particular be set so that it is above the dew point. The cooled heating medium is first fed to the medium storage tank and, from there, via the piping system, directly or indirectly to the air conditioning unit. The air conditioning unit operates in cooling mode to cool the air in the room in which it is located. In contrast to the prior art, the waste heat generated in this process is now not released into the environment via an air hose through an opening in the room, but is transferred to the heating medium. Due to its low temperature, the heating medium is suitable for absorbing the waste heat from the air conditioning unit.The heating medium is thereby heated and, in this state, fed back to the medium storage tank via the piping system. From the medium storage tank, the heated heating medium can be fed to the heat / cooling generator and cooled back to a desired level. It is also conceivable for the heated heating medium to cool down naturally over time. It is also conceivable to cool the heating medium by bringing it into heat-exchanging contact with a cooler medium. For example, and preferably, the heating medium can be fed from the medium storage tank to a pipe run laid underground. In this design, the heated heating medium flows through the pipe run, releasing heat energy into the ground. This approach does not require active cooling by means of the heat / cooling generator using electrical energy (apart from pumping the heating medium). In this way, the cycle is closed.The transfer of the. Waste heat from the air conditioning unit can preferably be transferred to the heating medium in the air conditioning unit, in particular by means of a heat exchanger arranged therein (i.e. within a housing of the air conditioning unit), or outside the air conditioning unit, for example by means of a heat exchanger arranged outside the air conditioning unit (i.e. outside a housing of the air conditioning unit).

[0020] The temperature control system according to the invention has many advantages. Compared to a mobile air conditioner, it is not necessary to dissipate waste heat into the environment via an air flow through a room opening. This avoids the disadvantage described in the prior art, namely that a negative pressure is created in the room cooled by the air conditioner. The flow of warm outside air into the building and ultimately into the room is thus prevented. The energy efficiency of the temperature control system is thus improved compared to the prior art.

[0021] Compared to a split air conditioning system, there is also the advantage that the waste heat is dissipated centrally via the rest of the temperature control system and therefore, in particular, each air conditioning unit does not have to work together with its own outdoor unit located on the facade of the building.

[0022] In a particularly advantageous embodiment of the temperature control system, the refrigeration machine of the air conditioning unit is formed by a compression refrigeration machine. Its circuit is preferably arranged entirely within the space to be cooled. In this embodiment, the functional components of the refrigeration machine, i.e. the evaporator, the compressor, the condenser, and the expansion valve, which are crucial for the functioning of a compression refrigeration machine, are arranged within the space to be cooled. Preferably, all components of the refrigeration machine are arranged within a housing of the air conditioning unit. When the refrigeration machine is designed as a compression refrigeration machine, its condenser, to which the working medium of the refrigeration machine releases energy, is preferably formed by a heat exchanger that is directly supplied with the heating medium. In this way, the heating medium can absorb the energy while the working medium is liquefied.

[0023] Preferably, the air conditioning unit is a mobile air conditioning unit. Unlike a split air conditioning system, the resulting waste heat is not led out of the building envelope through an exterior wall of the room, but is transferred inside the building to the heating medium contained in the piping system of the temperature control system and then directed towards the medium storage tank. Waste heat is only released to the environment downstream, for example and preferably by means of the central heat / cooling generator or without energetic support by convective or heat-conducting release to the environment, for example as described above via a pipe laid in the ground to the ground.

[0024] As already explained above, in a particularly preferred embodiment the heat / cooling generator can be formed by a heat pump. Such a heat pump is preferably arranged at least partially outside the building envelope of the building in which the room is located that is temperature-controlled by means of the temperature control system. In particular the heat pump can be an air / water, water / water or brine / water heat pump. Preferably at least one heat exchanger of the heat / cooling generator is located outside the building envelope, wherein further preferably the heat exchanger - depending on the mode of operation - interacts with an evaporator (heating mode) or with a condenser (cooling mode) of the heat / cooling generator. Preferably the components of the heat pump (evaporator, compressor, condenser, expansion valve) are located within the building envelope of the building, while a heat exchanger that is connected to the evaporator orCondenser, is located outside the building envelope. Alternatively, a component of the heat pump can be located outside the building envelope, preferably a heat exchanger that acts as an evaporator in heating mode and as a condenser in cooling mode.

[0025] In principle, a design of the temperature control system is advantageous in which the refrigeration machine of the air conditioner is designed in the manner of a mechanical refrigeration machine, preferably in the form of a compression refrigeration machine, or in the manner of a thermoelectric refrigeration machine using at least one Peltier element. The design of the refrigeration machine as a mechanical refrigeration machine is known per se, so that reliable operation of the temperature control system can be guaranteed. To operate the refrigeration machine, generally only a power connection is required, which can be provided via a conventional power outlet if necessary, particularly when the air conditioner is designed as a mobile air conditioner.When using a thermoelectric refrigerator equipped with at least one Peltier element, heat energy is absorbed from the room air at a cold side of the Peltier element using electrical current, and heat energy is released at the warm side of the Peltier element. In this design, the warm side interacts directly or indirectly with the piping system or the the heating medium contained therein, so that the waste heat generated by the air conditioning unit can be transferred to the heating medium and dissipated by means of the heating medium.

[0026] In a particularly preferred embodiment, the air conditioning unit comprises at least one heat exchanger designed to effect heat exchange between a working medium of the refrigeration unit and the heating medium. In this way, the waste heat of the air conditioning unit can be transferred to the heating medium particularly easily by means of the heat exchanger. In a preferred embodiment, the heat exchanger is provided and designed to transfer thermal energy from an initially vaporous working medium of the refrigeration unit to the liquid heating medium and thereby cool the working medium such that it condenses. For example, the heat exchanger can be formed by a liquid / liquid heat exchanger. If the refrigeration unit is formed by a compression refrigeration unit, the heat exchanger preferably acts as a condenser of the compression refrigeration unit.In a preferred embodiment, the heat exchanger is arranged together with the refrigeration unit in a housing of the air conditioning unit ("internal heat exchanger"). The supply and discharge of the heating medium from the piping system to the air conditioning unit, as well as from the air conditioning unit to the piping system, can advantageously be carried out via branch lines, which are preferably connected to the piping system in the room in which the air conditioning unit is located.

[0027] Alternatively, it is also conceivable for the air conditioning unit as such not to have its own heat exchanger for exchanging heat energy directly with the heating medium, but for the temperature control system as such to comprise a heat exchanger for this purpose. In this embodiment, for example, the refrigeration unit of the air conditioning unit (possibly with the exception of the condenser) can be arranged in a housing of the air conditioning unit that is designed independently of the heat exchanger of the temperature control system. To transfer the waste heat from a working medium of the refrigeration unit to the heating medium of the temperature control system, the air conditioning unit can be connected to the heat exchanger of the temperature control system, for example by means of connecting lines. In this embodiment, the working medium of the refrigeration unit can be led out of the air conditioning unit through the connecting lines and fed to the heat exchanger and then circulated back.The heat exchanger is located outside the air conditioning unit's housing and, as such, is not part of the air conditioning unit ("external heat exchanger"). The external heat exchanger can act as a condenser for the refrigeration unit, provided the latter is a compression refrigeration unit. The external heat exchanger can, for example, be permanently installed in a room or integrated into the system. The heat exchanger can be integrated into the piping system so that the air conditioner is connected to the heat exchanger, for example, via branch lines, for operation. The external heat exchanger can also interact with a heating device of the temperature control system, for example, by being mounted directly on a radiator. The transfer of waste heat from the working fluid to the heating medium takes place via the heat exchanger, so that the waste heat from the air conditioner is effectively dissipated via the heating medium toward the medium storage tank.

[0028] This transfer can either occur directly within the external heat exchanger, by supplying the heating medium to the heat exchanger in addition to the working fluid of the chiller, with the two media being conducted, for example, according to the cross-flow principle, thereby exchanging thermal energy. However, the waste heat can also be transferred indirectly. For example, the external heat exchanger can be attached to a heating device of the temperature control system located in the respective room, in particular a radiator. In this embodiment, the waste heat of the working medium is transferred via the heat exchanger to the heating device, which acts as a heat exchanger and through which the waste heat is ultimately transferred to the heating medium flowing through the heating device. As a result, in this embodiment, the waste heat from the air conditioning unit's refrigeration unit is also transferred to the heating medium and subsequently dissipated via the piping system.

[0029] As already explained above, it can also be particularly advantageous if the air conditioning unit is a mobile air conditioning unit. Such a unit is characterized in that it can be moved manually and without tools from at least one room of the building to another room of the building if necessary. Preferably, all components of the air conditioning unit's refrigeration machine, which are required for the air conditioning unit to operate as intended, are arranged within a housing of the air conditioning unit. Advantageously, the air conditioning unit has a plurality of rollers (for example four rollers) on an underside of the housing, by means of which the air conditioning unit can be moved by rolling on a room floor. In this way, the air conditioning unit can be moved particularly easily within the building.Furthermore, the air conditioning unit preferably includes an electrical connection with a plug connector, preferably in the form of a Schuko plug, by means of which the air conditioning unit can be alternately connected to different sockets in the building and thus supplied with electrical power. If the refrigeration unit of the mobile air conditioning unit is a compression refrigeration unit, there are preferably all functional components of the compression refrigeration machine, i.e. the evaporator, the compressor, the condenser and the expansion valve, within the housing of the air conditioning unit.

[0030] The design of the air conditioner as a mobile air conditioner has the particular advantage that it can be moved to another room as needed and used there to cool the room air. In comparison to permanently installed air conditioners, it is therefore not necessary for the temperature control system to have a number of air conditioners corresponding to the number of rooms to be cooled. Instead, a smaller number of air conditioners is sufficient, and these can be used in different rooms to be cooled as needed. Another advantage is that the air conditioner only needs to be located inside a room when cooling is required. This means that the air conditioner can be stored outside the room, at least during the entire heating period, so that it does not take up any usable space in the room.

[0031] In a further particularly preferred embodiment, the temperature control system comprises at least two branch lines by means of which the air conditioning unit is directly or indirectly connected to the piping system. The branch lines can in particular be designed in the form of flexible liquid hoses which are provided and configured to exchange a liquid working medium of the refrigeration machine of the air conditioning unit or a liquid heating medium of the temperature control system between the air conditioning unit and the piping system. In a preferred embodiment, a first branch line is connected at one end to the air conditioning unit and at its other end to a supply line of the piping system, and a second branch line is connected at one end to the air conditioning unit and at its other end to a return line of the piping system.Nevertheless, it is also conceivable for both branch lines to be connected, with their ends assigned to the piping system, to the supply or return line of the piping system. Designing the temperature control system with the aforementioned branch lines has the particular advantage that each air conditioning unit can be connected to or disconnected from the piping system particularly easily as needed. When the air conditioning unit is not in use, for example during the heating season, the branch lines can be dismantled and stored until the next time the air conditioning unit is needed. Connection points at which the branch lines are fluidically connected to the piping system are preferably located in the room in which the air conditioning unit is located.

[0032] In order to be able to connect the branch lines to the piping system as easily as possible, it can also be advantageous if quick connectors are formed on the piping system and / or the at least one heating device, by means of which quick connectors the branch lines can be connected to and disconnected from the piping system without the need for tools. Such quick connectors can, for example, be designed in the manner of a bayonet lock or a screw connection. The quick connectors can preferably be operated without tools, so that a user of the respective air conditioning unit can connect the air conditioning unit to or disconnect it from the piping system particularly easily. The quick connectors are preferably arranged on the ends of the associated branch lines facing away from the air conditioning unit.

[0033] It can also be particularly advantageous if at least one connection valve is formed on at least one heating device configured as a radiator, preferably on a plurality of such heating devices, more preferably on all heating devices, of the temperature control system, to which the at least one air conditioning unit is fluidly connected or connected to the piping system. With this configuration, the air conditioning unit can be moved particularly easily from one room to another, with the air conditioning unit being connectable in both rooms to at least one connection valve configured on a heating device there.Such a connection valve can, for example, be designed as a supplement to or replacement for a commercially available connection piece or valve insert of a commercially available radiator, so that the respective temperature control system can be easily retrofitted with the connection valve, preferably a plurality of such connection valves. In this way, an existing temperature control system can be particularly easily converted to a temperature control system according to the invention. During use, the air conditioning unit can, for example and preferably, be detached from connection valves of a first radiator in a first room, then moved to a second room and connected there to the connection valves of a second radiator. In this way, the air conditioning unit can be used particularly easily to cool different rooms as needed, for example, during the day to cool a room used as an office and in the evening to cool a room used as a bedroom.

[0034] It is also conceivable that the piping system in each room in which the air conditioner is to be used is equipped with appropriate connection valves for the fluidic connection of the air conditioner. For example, T-valves can be used to connect branch lines to the piping system, via which connects the air conditioning unit to the piping system in the manner described. Such valves are particularly easy to retrofit, allowing existing temperature control systems to be easily converted.

[0035] Furthermore, a configuration of the temperature control system can be advantageous in which the at least one heating device is formed by a radiator that is intended to be arranged above a floor of the at least one room. Such radiators are formed, for example, by so-called panel radiators, which are typically arranged in the area of ​​a window sill below a window of the respective room. A heating device designed as a radiator typically has so-called connecting pieces, by means of which the heating device is fluidically connected to the piping system of the temperature control system. As a rule, a valve is mounted in at least one connecting piece, by means of which a flow of the heating medium through the heating device can be adjusted.If the temperature control system has at least one such heating device, it can be particularly advantageous if the at least one air conditioning unit is connected directly to the heating device (and via it to the piping system), for example, to at least one such connecting piece of the heating device. The air conditioning unit can preferably be connected to the connecting piece(s) via the branch lines described above.

[0036] Alternatively or additionally, the temperature control system can be designed such that the at least one heating device is formed by an underfloor heating system that is intended to be installed in a floor of the at least one room. With such a heating device, the piping system (at least in the room in question) as such is not accessible directly above the floor. Therefore, for connecting the at least one air conditioning unit to the piping system, it is advantageous if two connection points of the piping system are routed above the floor of the respective room. With this design, the air conditioning unit can be connected to the connection points particularly easily, for example by means of the branch lines described above.

[0037] A design of the temperature control system in which it comprises at least one heating device in the form of a radiator arranged above the room floor as well as at least one underfloor heating system installed in a room floor is equally conceivable.

[0038] The underlying problem is further solved by a method for controlling the temperature of at least one room of a building with the features of claim 8. Advantageous embodiments of the method emerge from the associated subclaims and the description. The method according to the invention can be carried out particularly easily using the temperature control system according to the invention.

[0039] The method provides for the use of the temperature control system according to the invention, wherein the air conditioning unit of the temperature control system is arranged in the at least one room that is to be cooled and is operated in cooling mode. In this way, the room air of the room is cooled. The waste heat generated by the air conditioning unit during the cooling operation of the air conditioning unit is transferred to the heating medium of the temperature control system by means of the direct or indirect fluidic connection of the air conditioning unit to the piping system of the temperature control system and is then dissipated via the piping system towards the medium storage of the temperature control system. The heating medium is preferably cooled at least temporarily by means of the heat / cold generator, so that the waste heat generated during the cooling operation of the air conditioning unit is dissipated.The cooled heating medium is conveyed via the piping system to the at least one heating device arranged in the at least one room. Due to the fluidic connection of the piping system to the air conditioning unit, the heating medium reaches the air conditioning unit and absorbs the waste heat from the air conditioning unit there. The exchange of thermal energy between the air conditioning unit and the heating medium preferably takes place in the room in which the air conditioning unit is located during its cooling operation. Preferably, the air conditioning unit in the room is fluidically connected to the piping system, for example and preferably by means of branch lines as described above.

[0040] The advantages achieved by the method have already been explained above in connection with the temperature control system according to the invention. In particular, the waste heat from the air conditioning unit can be dissipated via the heating medium or the piping system, so that local dissipation, for example through an opening in the room to be cooled, can be omitted. The waste heat generated as a result of the operation of the air conditioning unit can be dissipated centrally and particularly efficiently to the environment by means of the heat / cooling generator. According to the above explanation, this is particularly advantageous when the heat / cooling generator is formed by a heat pump. Likewise, the excess heat energy can be dissipated passively to the environment, i.e., without the use of the heat / cooling generator. For example, and preferably, the heated heating medium can be heat-exchanging contact with the ground or ambient air, so that thermal energy can be transferred from the heating medium to the ground or the ambient air. According to the above description, it is particularly advantageous for the air conditioning unit to comprise a heat exchanger for transferring the waste heat from the air conditioning unit to the heating medium. This is preferably formed by an internal heat exchanger, which is provided and configured to transfer thermal energy from a working medium of a refrigeration machine of the air conditioning unit to the liquid heating medium of the temperature control system. This heat exchanger is preferably formed by a liquid / liquid heat exchanger.

[0041] If the heat / cooler generator is preferably formed by a heat pump, it is particularly advantageous if the heat / cooler generator begins cooling the heating medium as soon as a temperature of the heating medium in the medium storage tank at a reference point relevant for the supply of the heating medium to the heat / cooler generator rises to a value above a previously defined reference temperature, for example above 35°C, preferably above 30°C, more preferably above 27.5°C. It is particularly advantageous if the heat / cooler generator already begins its cooling operation for cooling the heating medium at a temperature level of the heating medium that is significantly below a temperature level required for using the heating medium to heat domestic water. The latter temperature level is typically in the range of at least 50°C.For efficient operation of the heat / cooling generator, it is particularly advantageous to start cooling operation when the temperatures mentioned above are reached for the heating medium.

[0042] The method is also particularly advantageous when the air conditioning unit is a mobile air conditioning unit, wherein the fluidic connection of the air conditioning unit to the piping system is broken as soon as the air conditioning unit is to be used to cool another room. Accordingly, the air conditioning unit is first disconnected from the piping system and then moved to the other room, where the fluidic connection of the air conditioning unit to the piping system is then re-established. This procedure has the particular advantage that different rooms can be cooled selectively using one air conditioning unit. Operating different air conditioning units, one in each of the rooms, is therefore not necessary.

[0043] In a further particularly advantageous embodiment, the air conditioning unit is fluidically connected to the piping system by means of two branch lines. This is preferably done without tools, for example by means of the previously described Quick connectors. This makes it particularly easy to connect or disconnect the air conditioner from the piping system as needed.

[0044] Furthermore, the underlying problem is solved by means of a building having the features of claim 11. Advantageous embodiments emerge from the associated subclaims and the description.

[0045] The building, which preferably comprises a plurality of floors, comprises a building shell that separates an interior of the building from an external environment surrounding the building. Within the building shell, i.e., in the interior of the building, a plurality of enclosed spaces are arranged, which are intended and configured for people to stay in them. Furthermore, the building comprises a temperature control system for temperature control of at least one of the rooms, preferably a plurality of the rooms, more preferably all of the rooms. The building can, in particular, be formed by a single-family or multi-family house or a commercial building, for example, an office building.

[0046] The building according to the invention is characterized in that the temperature control system is designed according to the present invention. The resulting advantages have already been explained above. Particularly preferably, the temperature control system is operated according to the method according to the present invention. The resulting advantages have already been explained above.

[0047] The at least one heating device of the temperature control system is arranged in one of the rooms of the building. The medium storage tank is preferably arranged on a lowest floor of the building, for example in a boiler room on the ground floor or in the basement. The piping system distributes the heating medium in the building, wherein the piping system, for example and preferably, has horizontal line sections for distributing the heating medium in a horizontal direction within a floor of the building and vertical line sections for distributing the heating medium in a vertical direction between different floors of the building. The piping system preferably has, in a manner known per se, a supply line and a return line. The heating device is arranged in a room of the building. Furthermore, the air conditioning unit is arranged in a room of the building.Preferably, it is mobile and not connected to the building envelope, allowing it to be moved to different rooms as needed. The air conditioning unit is preferably connected to the piping system in such a way that connection points to the piping system are located in the room in which the air conditioning unit is located. For example, and preferably. The air conditioning unit can be connected to the piping system via branch lines extending from a housing of the air conditioning unit to the connection points of the piping system. The length of the piping system between the medium storage tank and the air conditioning unit or the connection points is preferably at least 5 m, preferably at least 10 m.

[0048] In a preferred embodiment of the building, the heat / cooling generator of the temperature control system is formed by a heat pump, wherein at least one heat exchanger of the heat / cooling generator, which interacts with an evaporator of the heat / cooling generator, is arranged outside the building envelope. The function of the "evaporator" here refers to the heating mode (heating period) of the heat / cooling generator. In cooling mode (cooling period), however, the evaporator acts as a condenser. In this way, the heat / cooling generator is particularly well suited to dissipating the excess waste heat generated by the air conditioning unit during the cooling period to the environment. If the heat pump is designed as an air / water heat pump, the waste heat can be dissipated to the outside air particularly easily by means of a forced air flow, wherein the heat exchanger of the heat / cooling generator preferably interacts with a fan.In the case of configuring the heat pump in the form of a water-to-water or solar-to-water heat pump, the waste heat can be discharged particularly well to the ground or the soil outside the building envelope.

[0049] Finally, such a configuration of the building is particularly advantageous when the at least one climate device is arranged completely within the space to be cooled by means of the climate device. This is particularly advantageous when the refrigerating machine of the climate device is formed by a compression refrigerating machine. Preferably, its components (evaporator, compressor, condenser, expansion valve) are arranged completely within a housing of the climate device. The climate device is preferably mobile, for example, it can have running wheels by means of which the climate device can be moved rolling on a room floor.

[0050] Finally, the underlying object is further achieved by means of an air conditioning device having the features of claim 13. Advantageous embodiments emerge from the associated subclaims and the description.

[0051] The air conditioning unit comprises a housing, a refrigeration unit arranged within the housing in the manner of a compression refrigeration unit, and a heat exchanger which is associated with or forms a condenser of the refrigeration unit. The air conditioning unit For example and preferably, it can be formed by a mobile air conditioner. All the functional components of the refrigeration machine (compressor, liquid expansion valve and evaporator) are arranged within the housing. The heat exchanger is provided and configured to transfer waste heat or thermal energy, which occurs as a result of the refrigeration operation of the refrigeration machine, from a working medium of the refrigeration machine to a liquid heating medium of a superordinate temperature control system, whereby the working medium condenses or liquefies. For example and preferably, the heat exchanger can be formed by a liquid / liquid heat exchanger.

[0052] The air conditioning unit according to the invention has many advantages. In particular, it enables the dissipation of the waste heat from the refrigeration machine, which inherently arises during cooling operation, to a liquid medium, namely and in particular the liquid heating medium of a respective temperature control system. The latter is, for example, and preferably, water. Accordingly, the air conditioning unit is particularly well suited for use in a temperature control system according to the present invention, in the context of implementing a method for temperature control of at least one room according to the present invention, and for a building according to the present invention.

[0053] In a preferred embodiment, the air conditioning unit has a supply connection for supplying the liquid heating medium to the heat exchanger and a discharge connection for discharging the liquid heating medium away from the heat exchanger. In this way, the air conditioning unit can be particularly easily connected to branch lines, via which the heating medium can be supplied to the air conditioning unit or the heat exchanger on the one hand, and discharged from the air conditioning unit or the heat exchanger on the other. The branch lines can be connected, for example and preferably, to a piping system of a temperature control system in the manner described above.

[0054] It is also conceivable for the air conditioning unit itself to include branch lines already permanently connected to the heat exchanger, which extend from the heat exchanger through the housing of the air conditioning unit to the outside, where they are fluidically connected, for example and preferably directly, to a respective piping system of a temperature control system. The branch lines can be formed, for example and preferably, by flexible plastic lines.

[0055] If the air conditioning unit is designed to be mobile in a preferred embodiment, it can have a plurality of castors by means of which it can be moved along a surface. This makes it particularly easy to move the air conditioning unit from one room of a building to another. For this purpose, it may only be necessary Before moving to another room, it is necessary to first disconnect the air conditioning unit from the piping system in the room to be vacated and then reconnect it to the piping system upon arrival in the other room. This is particularly easy if the air conditioning unit is connected to a heating device, for example and preferably a radiator of the temperature control system, which is already located in the respective room. For example, the air conditioning unit can be connected to connectors of a heating device designed as a radiator, preferably via branch lines.

[0056] Accordingly, it may be advantageous if the supply connection and the discharge connection are each designed as a quick-connector for tool-free connection of a branch line, wherein the respective quick-connector is preferably designed as a bayonet connection or a screw connection. With this configuration, the user of the air conditioning unit can connect it particularly easily to the piping system in a room to be cooled using the quick-connectors and corresponding branch lines. This is possible for anyone, even without technical skills, making the air conditioning unit particularly easy to use.

[0057] In an advantageous embodiment of the air conditioning unit, it has a second heat exchanger, which is assigned to or forms an evaporator of the refrigeration machine. The second heat exchanger is configured to transfer thermal energy from the room air to the refrigeration machine's working fluid, which is significantly cooled downstream of the expansion valve and subsequently evaporates. For example, and preferably, this heat exchanger can be formed by a liquid / air heat exchanger.

[0058] Preferably, the air conditioning unit further comprises a fan associated with the second heat exchanger, which can supply it with an air volume flow during operation of the air conditioning unit. This can improve the heat transfer between the room air and the second heat exchanger. Examples of implementation

[0059] The invention is explained in more detail below using an exemplary embodiment illustrated in the figures. It shows: Fig. 1: A schematic representation of a building according to the invention, which is equipped with a temperature control system according to the invention, Fig. 2: A schematic representation of a temperature control system according to the State of the art, Fig. 3: A schematic representation of an inventive temperature control system, Fig. 4: A schematic representation of a refrigeration machine of an air conditioning unit according to the prior art, Fig. 5: A schematic representation of a refrigeration machine of an air conditioning unit of a temperature control system according to the invention, Fig. 6: A schematic representation of another refrigeration machine of a Air conditioning unit of a temperature control system according to the invention, Fig. 7: A schematic representation of a connection valve for connecting an air conditioning unit to a piping system of a temperature control system according to the invention, wherein the connection valve is in an inactive position, Fig. 8: The connection valve according to Figure 7, with the connection valve in an active position, Fig. 9: A schematic representation of an air conditioning unit that interacts with a heating device by means of an external heat exchanger, Fig. 10: An air conditioning unit of the temperature control system according to Figure 3.

[0060] An embodiment of a building 3 according to the invention is shown in Figure 1. The building 3 comprises a building shell 33, which in the example shown is formed by exterior walls, a floor slab, and a roof. In an interior of the building 3 there are a plurality of rooms 2, 2', which here extend over a total of two floors 42, 43. The building 3 is equipped with a temperature control system 1 according to the invention. This comprises a heat / cold generator 4, which in the example shown is formed by an air / water heat pump. Furthermore, the temperature control system 1 comprises a medium storage tank 6 in which a heating medium 5 of the temperature control system 1 is stored. The medium storage tank 6 is arranged in a boiler room on the ground floor 42 of the building 3.The temperature control system 1 further comprises a plurality of heating devices 8, which in the example shown are each formed by a radiator 20 arranged above a respective room floor 18.

[0061] A fluidic connection between the medium storage 6 and the heating devices 8 is made by means of a piping system 7 of the temperature control system 1. In other words, the piping system 7 is responsible for the sub-distribution of the heating medium in the building 3. For this purpose, the piping system 7 comprises horizontal pipe sections for distributing the heating medium 5 within a floor and vertical pipe sections for distributing the heating medium 5 between the ground floor 42 and the upper floor 43. In the example shown, the piping system 7 comprises a flow 11 and a return 12. During heating operation of the temperature control system 1, the heating medium 5 stored in the medium reservoir 6 is fed to the heating devices 8 via the flow 11 of the piping system 7, so that the heating devices heat up and can thus release thermal energy to the room air of the respective room 2, 2' in which they are arranged. The heating medium 5 flows through the heating devices 8, which then heat up.After flowing through the heating devices 8, the heating medium 5 is circulated back into the medium storage tank 6 via the return line 12 of the piping system 7. Due to the release of thermal energy, the temperature level of the heating medium 5 in the return line 12 after flowing through the heating devices 8 is lower than in the flow line 11. The released thermal energy is generated by the heat / cold generator 4, so that the heating medium 5 is reheated.

[0062] In the example shown, the temperature control system 1 comprises an air conditioning unit 9, which here is formed by a mobile air conditioning unit. As such, the air conditioning unit 9 comprises a housing 38, within which all components of the air conditioning unit 9 are located. The housing 38 can be moved by rolling on the floor 18 of the respective room 2, 2* by means of four rollers 44. The air conditioning unit 9 comprises a refrigeration machine 10, which is intended and configured to cool the room air using electrical energy. 2, 2' in which the air conditioning unit 9 is located. During such cooling operation of the air conditioning unit 9, waste heat is generated by the air conditioning unit 9, which is transferred to the heating medium 5 and discharged via the piping system 7. For this purpose, the air conditioning unit 9, in the example shown, is connected to the piping system 7 by means of two branch lines 16, 17. In the present case, this is designed such that a first branch line 16 is operatively connected to the supply line 11 of the piping system 7 and the second branch line 17 is operatively connected to the return line 12 of the piping system 7. This operative connection consists in a fluidic connection in each case, so that the heating medium 5 guided in the piping system 7 can be supplied to the air conditioning unit 9 via the branch lines 16, 17 or discharged from the air conditioning unit 9 to the piping system 7. Connection points where the branch lines 16, 17 are connected to the pipeline system 7 are located in the room 2, 2', in which the air conditioning unit 9 is also located. In this way, the waste heat from the air conditioning unit 9 can be transported via the piping system 7 towards the medium storage tank 6.

[0063] The air conditioning unit 9 comprises an internal heat exchanger 15, by means of which the waste heat generated by the refrigeration unit 10 can be transferred from a working medium of the refrigeration unit 10 to the heating medium 5. The heat exchanger 15 is formed here by a liquid / liquid heat exchanger arranged within the housing 38 of the air conditioning unit 9. Accordingly, heating medium 5 can be supplied to the heat exchanger 15 via the branch line 16 and discharged from the heat exchanger 15 to the piping system 7 via the branch line 17.

[0064] In a cooling mode of the temperature control system 1, the air conditioning unit 9 is therefore operated in a cooling mode, so that the room air of the room 2, 2' in which the air conditioning unit 9 is located is cooled. The waste heat generated by the air conditioning unit 9 is transferred to the heating medium 5 by means of the heat exchanger 15. The heating medium 5 is circulated in the piping system 7, for example by means of a pump 23 not shown in Figure 1. In this way, cool heating medium 5 (for example with a temperature of 15°C) is supplied to the air conditioning unit 9 from the piping system 7 via the branch line 16, and heated heating medium 5, as a result of the transfer of the waste heat from the air conditioning unit 9, is discharged from the air conditioning unit 9 to the piping system 7 via the branch line 17.The heat / cold generator 4 is here, and preferably at least temporarily, operated in a cooling mode in order to cool the heated heating medium 5 again, whereby the heating medium 5 stored in the medium storage 6 becomes successively warmer as a result of the cooling mode of the air conditioning unit 9 or the absorption of the waste heat generated thereby. In technology, this is sometimes referred to as "charging" the medium storage 6. This refers to the successive introduction of thermal energy into the medium storage 6, normally caused by a heat generator operating in heating mode during the heating period. In cooling mode of the temperature control system 1, however, the aforementioned charging of the medium storage 6 takes place using the waste heat from the air conditioning unit 9, whereby the thermal energy - unlike in heating mode - is typically undesirable and should be dissipated. In cooling mode, the heat / cold generator 4 is intended and configured to dissipate the excess thermal energy.Alternatively or additionally, in the example shown, it is also possible to dissipate the excess heat energy without operating the heat / cold generator 4 by circulating the heating medium 5 in a pipe string 46 of the temperature control system 1 laid in the ground 45, for example by means of a. pump (not shown). The heating medium 5 transfers its thermal energy to the ground 45, whose temperature is approximately 10°C depending on the depth.

[0065] Particularly preferably, the heat / cooling generator 4 and / or the circulation through the pipe system 46 can be operated such that the heating medium 5 is cooled to a temperature in the range between 10°C and 30°C, for example 15°C. At this temperature, the heating medium 5 is supplied to the air conditioning unit 9 via the pipe system 7, so that the heating medium 5 absorbs waste heat from the air conditioning unit 9. The thermal energy thus absorbed is transported by the heating medium 5 via the pipe system 7 into the medium storage unit 6.

[0066] The operation of the heat / cooler 4 can, for example, be intermittent, for example whenever the temperature of the heating medium 5 has risen to a value above a previously defined reference temperature, for example to above 27.5 °C, at a reference point of the medium storage tank 6, to which the heating medium 5 can be conducted to the heat / cooler 4 by means of a connecting line 22.

[0067] A temperature control system 1 according to the prior art is shown by way of example in Figure 2. This temperature control system 1 comprises a heat / cooling generator 4, which is connected to a medium storage tank 6 via connecting lines 22. Heating medium 5, which here is water, is stored in the medium storage tank 6. This heating medium 5 can be conducted to a plurality of heating devices 8 via a piping system 7, shown in simplified form in Figure 2. The piping system 7 is shown in simplified form in that its supply line 11 and its return line 12 in a main branch 36 of the piping system 7 are not shown separately. The separate representation of supply line 11 and return line 12 in Figure 2 is limited to the connections of heating devices 8. In the example shown, the temperature control system 1 comprises two heating devices 8 in the form of radiators 20 and one heating device 8 in the form of an underfloor heating system 21.For the purpose of circulating the heating medium 5 in the piping system 7, the piping system 7 cooperates with a pump 23 of the temperature control system 1.

[0068] In comparison to the known temperature control system 1 according to Figure 2, Figure 3 shows a temperature control system 1 according to the invention. This differs from the known temperature control system 1 according to Figure 2 by two air conditioning units 9, 9', which are fluidically connected to the piping system 7. A first air conditioning unit 9, which is shown further up in Figure 3 than the second air conditioning unit 9', is connected to the piping system 7 of the temperature control system 1 by means of branch lines 16, 17. connected. In the example shown, this is done in such a way that a first branch line 16 is connected to a supply line 11 of the piping system 7 by means of a quick connector 19, while the second branch line 17 is also connected to a return line 12 of the piping system 7 by means of a quick connector 19. In the example shown, the quick connectors 19 can, for example, each comprise a bayonet lock, by means of which the branch lines 16, 17 can be connected to the piping system 7 without the need for tools. The branch lines 16, 17 are arranged here and preferably in the immediate vicinity of the heating device 8, which is located in the same room 2, 2' of the building 3. Therefore, connection points at which the quick connectors 19 are formed are also located in the respective room 2, 2'.

[0069] A flow direction of the heating medium 5 through the branch lines 16, 17 is illustrated in Figure 3 by means of arrows. In a cooling mode of the temperature control system 1, in which the first air conditioning unit 9 is also active, i.e. is in a cooling mode, the cool heating medium 5 is fed from the medium storage tank 6 via the flow line 11 to the first quick connector 19, to which the first branch line 16 is connected. By means of the first branch line 16, the cool heating medium 5 is fed to the first air conditioning unit 9, where thermal energy is taken from the heating medium 5 in the form of waste heat from the air conditioning unit 9, for example by means of an internal heat exchanger 15. The first air conditioning unit 9 is located in a room 2 (not shown in Figure 3) and is operated in a cooling mode.The heating medium 5, heated by the waste heat from the first air conditioning unit 9, is routed via the second branch line 17 to the second quick connector 19, which is located in the return line 12 of the piping system 7. The heated heating medium 5 is circulated back to the medium storage tank 6 via the return line 12.

[0070] The second air conditioning unit 9', shown further down in Figure 3, is also connected to the piping system 7 via two branch lines 16, 17. In contrast to the first air conditioning unit 9, both branch lines 16, 17 are connected to the supply line 11 or the return line 12 of the piping system 7. Similar to the first air conditioning unit 9, the fluidic connection of the branch lines 16, 17 to the piping system 7 is made via quick connectors 19.

[0071] The air conditioning units 9, 9' each comprise a refrigeration machine 10. It is well known to design a refrigeration machine 10 of an air conditioning unit 9 in the form of a compression refrigeration machine 13. A known compression refrigeration machine 13 can be seen in Figure 4. This comprises an evaporator 27, in which a working medium of the refrigeration machine 10 is evaporated and thereby absorbs thermal energy from the room air of the room 2. The working medium is formed by a conventional refrigerant. To support the evaporation effect, the evaporator 27 cooperates with a fan 28. Useful cooling is thus provided at the evaporator 27, which cools the air in room 2 in which the air conditioning unit 9 is located. The vaporous working medium is then fed to a compressor 24, which can in particular be an electrically operated compressor. The compressed and thus strongly heated working medium is subsequently fed to a condenser 25, in which the working medium is converted from its vaporous to its liquid state, releasing heat energy in the process. This is accomplished by means of a liquid / air heat exchanger, by means of which the waste heat from the working medium is released into the air. This is also supported by a fan 28 assigned to the condenser 25.A correspondingly heated air volume flow of the air absorbing the waste heat is typically led out of the room 2 to be cooled by means of an air hose (not shown in Figure 4), for example through a room opening in the form of a window. The liquefied working medium is fed downstream of the condenser 25 to an expansion valve 26, by means of which the pressure of the working medium is reduced and the working medium expands. This usually results in significant cooling and even partial evaporation of the working medium. The cycle begins again with the feeding of the thus prepared working medium to the evaporator 27, in which the working medium is completely evaporated while absorbing heat energy from the room.

[0072] In the example shown in Figure 5, the air conditioning unit 9 of the temperature control system 1 according to the invention comprises a refrigeration machine 10, which is also designed as a compression refrigeration machine 13. The difference from the known air conditioning unit 9 is that the heat energy of the working medium in the condenser 25 is transferred to the heating medium 5 not by transferring the waste heat to the air (assisted by a fan 28), but rather by means of an internal heat exchanger 15 of the air conditioning unit 9, which is formed by a liquid / liquid heat exchanger. This is located within the housing 38 of the air conditioning unit 9 and acts here as the condenser 25 of the compression refrigeration machine 13. The heat energy of the working medium is transferred to the liquid heating medium 5 of the temperature control system 1 by means of the heat exchanger 15.The latter is fed to the heat exchanger 15 via a first branch line 16 and discharged from the heat exchanger 15 via a second branch line 17. The branch lines 16, 17 are fluidly connected to the piping system 7 of the temperature control system 1 in the manner described above. This eliminates the need for heat transfer of the waste heat from the refrigeration machine 10 to the air, thus eliminating the need for dissipation. This eliminates the need to remove heated air from room 2. Instead, the waste heat from the air conditioning unit 9 is dissipated via the heating medium 5 and thus the piping system 7.

[0073] As an alternative to a refrigeration machine 10 formed by a compression refrigeration machine 13, Figure 6 shows another refrigeration machine 10, which here is formed by a thermoelectric refrigeration machine using a Peltier element 14. This Peltier element 14 comprises a cold side and a warm side, wherein when an electrical voltage is applied to the Peltier element 14, the temperature of the Peltier element 14 drops on the cold side and rises on the warm side. By means of a fan 28, the cool temperature on the cold side of the Peltier element 14 can be released in the form of useful cold to the room 2 to be cooled. The thermal energy accumulating on the warm side of the Peltier element 14 is transferred to the heating medium 5 via an internal heat exchanger 15 in the manner described above and dissipated via the piping system 7 of the temperature control system 1.

[0074] In order to connect a respective air conditioning unit 9 to the piping system 7 particularly easily, it may be advantageous to use a special connection valve 29. This is shown in two different positions in Figures 7 and 8. The connection valve 29 has an inlet 34 for the heating medium 5 and an outlet 35 for the heating medium 5. Furthermore, the connection valve 29 has a supply line 31 for the air conditioning unit 9, i.e., an outlet via which the heating medium 5 can be supplied to the air conditioning unit 9. Furthermore, the connection valve 29 has a return line 32 of the air conditioning unit 9, i.e., an inlet via which the heating medium 5 originating from the air conditioning unit 9 can be transferred to the piping system 7.

[0075] In Figure 7, the connection valve 29 is in an inactive position. When in this inactive position, the inlet 34 of the connection valve 29 is connected to the piping system 7. In the example shown, the connection valve 29 is integrated into a return line 12 of the piping system 7. The heating medium 5 is guided via a 90° deflection from the inlet 34 of the connection valve 29 to the outlet 35 of the connection valve 29. The heating medium 5 is illustrated in Figure 7 by arrows. When the connection valve 29 is in its inactive position, the air conditioning unit 9 is not supplied with heating medium 5. The air conditioning unit 9 is accordingly inactive.

[0076] In Figure 8, the connection valve 29 is shown in an active position. In order to transfer the connection valve 29 from its inactive position according to Figure 7 to its active position according to Figure 8, a central rotary element 30 of the connection valve 29 is rotated by 90°. turned clockwise. In this way, the inlet 34 of the connection valve 29 is fluidically connected to the supply line 31 of the air conditioning unit 9. This results in the heating medium 5 being fed from the piping system 7 to the air conditioning unit 9. At the same time, a return line 32 of the air conditioning unit 9 is connected to the outlet 35 of the connection valve 29, so that the heating medium 5 coming from the air conditioning unit 9 is fed back to the piping system 7 (here the return line 12). This is also illustrated in Figure 8 by means of corresponding arrows. When the connection valve 29 is in the active position, the connection valve 29 is accordingly configured to feed heating medium 5 to the air conditioning unit 9. The air conditioning unit 9 can therefore be operated.

[0077] In this way, the air conditioning unit 9 can be fluidically connected to or disconnected from the piping system 7 particularly easily by means of the connection valve 29, namely by adjusting the rotary element 30. The connection valve 29 can, for example, be formed on a connection piece of a heating device 8 designed as a radiator 20. To connect an air conditioning unit 9 to the piping system 7, it is therefore conceivable, for example, to simply replace a connection piece of a radiator 20. Thus, the temperature control system 1 can be retrofitted particularly easily to an existing temperature control system.

[0078] As an alternative to an internal heat exchanger 15, the exchange of thermal energy between a working medium of the refrigeration machine 10 and the heating medium 5 can also take place via an external heat exchanger 15. A corresponding example is shown in simplified form in Figure 9. There, a mobile air conditioning unit 9 is arranged in a room 2 in which a heating device 8 designed as a radiator 20 is arranged. This heating device 8 is fluidically connected to a medium storage tank 6 (not shown) by means of a piping system 7. The piping system 7 comprises a supply line 11 and a return line 12. In a normal heating operation of the temperature control system 1, warm heating medium 5 is fed to the heating device 8 via the supply line 11, flows through the heating device 8 and releases heat in the process. This heat is transferred to the room air by means of the heating device 8, mainly by convection.The cooled heating medium 5 is circulated back towards the medium storage tank 6 via the return line 12.

[0079] In cooling mode of the temperature control system 1, however, the heating medium 5 is not heated by the heat / cold generator 4, but rather cooled. Cooled heating medium 5 is therefore supplied to the heating device 8 via the flow line 11. In the example shown, the external heat exchanger 15 is mounted on one surface of the heating device 8. arranged. This occurs in such a way that a transfer of thermal energy can take place between the heating device 8 and the heat exchanger 15, in particular by means of thermal conduction. For this purpose, it is advantageous if both the heating device 8 (in the usual way) and the heat exchanger 15 are made of materials that have a high thermal conductivity. During operation of the air conditioning unit 9, a working medium from the refrigeration machine 10 of the air conditioning unit 9 is circulated via connecting lines 37 to the external heat exchanger 15. The working medium 10 flows through the heat exchanger 15, whereby thermal energy is transferred to the heating device 8 and finally to the heating medium 5 flowing through the heating device 8. In this way, the waste heat generated by the air conditioning unit 9 is transferred to the heating medium 5 and can be discharged from the room 2 by means of the latter.The solution shown with the external heat exchanger 15 is particularly easy to retrofit to existing temperature control systems 1.

[0080] An air conditioning unit 9, which is shown in simplified form in Figure 10, comprises a housing 38 mounted on rollers 44, within which the functional components of the air conditioning unit 9 are arranged. The air conditioning unit 9 is accordingly formed by a mobile air conditioning unit that can be manually moved between different rooms 2, 2' of a building.

[0081] The air conditioning unit 9 here and preferably comprises an electrically powered refrigeration unit 10, which is formed by a compression refrigeration unit 13. To supply the air conditioning unit 9 with electrical power, the unit has a connecting cable (not shown in Figure 10) with a plug at one end for connection to a conventional electrical outlet (socket). The refrigeration unit 10 comprises, in a manner known per se, an evaporator 27, a compressor 24, a condenser 25, and an expansion valve 26. These components are arranged together and functionally connected to form a known circuit of a compression refrigeration unit 13. A working medium circulates in this circuit, which here and preferably is formed by a conventional refrigerant. The working process of the refrigeration unit 10 has already been explained above and will not be repeated here.Here, too, a fan 28 is assigned to the evaporator 27 in order to better distribute the useful cold emitted by the refrigeration machine 10 in the respective room 2 and generally to improve the heat transfer at the evaporator 27.

[0082] As already illustrated and described in the example according to Figure 5, in the air conditioning unit 9, the condenser 25 of the compression refrigeration machine 13 is formed by a heat exchanger 15, which is arranged within the housing 38 ("internal heat exchanger"). The heat exchanger 15 is provided and configured to To transfer thermal energy from the vaporous working medium of the refrigeration machine 10, which is supplied to it, to a liquid heating medium 5, which is also supplied to it. The latter is typically (heating) water. As a result of the heat transfer, the working medium is cooled and thereby liquefied (condensed), with the heating medium 5 absorbing the thermal energy. In other words, the waste heat generated as a result of the operation of the refrigeration machine is transferred to the heating medium by means of the heat exchanger 15.

[0083] To dissipate the heat energy away from the air conditioning unit 9, the latter has a supply connection 39 and a discharge connection 40. These each serve to connect a previously described branch line 16, 17, via which the heating medium 5 of the temperature control system 1 can be supplied to the air conditioning unit 9 or the heat exchanger 15, respectively, and via which the heating medium 5 can be discharged from the air conditioning unit 9. The supply connection 39 and the discharge connection 40 are each designed in the manner of a quick-connector, whereby the branch lines 16, 17 can be connected to and disconnected from the air conditioning unit 9 without the need for tools. At their ends facing away from the air conditioning unit 9, the branch lines 16, 17 are connected to the piping system 7 by means of quick-connectors 19 in the manner described above.The first branch line 16 with the heating medium 5, which is unheated and therefore cool in summer operation, is connected to the flow line 11 for supplying the heating medium 5 to the air conditioning unit 9, and the second branch line 17 with the heating medium 5 heated as a result of the waste heat of the working medium is connected to the return line 12 for discharging the heating medium 5 from the air conditioning unit 9 via the piping system 7. List of reference symbols 1 temperature control system 2, 2' room 3 buildings 4 heat and cold generators 5 Heating medium 6 media storage 7 Piping system 8 Heating device 9.9' air conditioner 10 Refrigeration machine 11 Lead-up 12 Return 13 Compression refrigeration machine 14 Peltier element 15 heat exchangers 16 branch lines 17 branch lines 18 Room floor 19 Quick connector 20 radiators 21 Underfloor heating 22 connecting line 23 Pump 24 compressors 25 condensers 26 Expansion valve 27 evaporators 28 fan 29 Connection valve 30 rotating element 31 Air conditioning unit supply 32 Air conditioning unit return 33 Building envelope 34 Entrance 35 Exit 36 Main line 37 Connecting line 38 housings 39 Feed connection 40 discharge connection 41 Heat exchanger 42 Ground floor 43 upper floors 44 roller 45 Soil 46 cable harness

Claims

Claims 1. A temperature control system (1) for controlling the temperature of at least one room (2) of a building (3), comprising a heat / cold generator (4) for controlling the temperature of a heating medium (5), at least one central medium storage unit (6) connected to the heat / cold generator (4) for storing the heating medium (5) tempered by the heat / cold generator (4), at least one heating device (8) for arrangement in the at least one room (2), a piping system (7) operatively connected to the medium storage unit (6) for conducting the tempered heating medium (5) from the medium storage unit (6) to the at least one heating device (8), wherein the heat / cold generator (4) is provided and configured to heat or cool the heating medium (5) as required, characterized by at least one air conditioning unit (9) for arrangement in the at least one room (2), wherein the air conditioning unit (9) is provided and configured to cool the room air of the room (2),wherein the air conditioning unit (9) comprises a refrigeration machine (10), wherein the air conditioning unit (9) is operatively connected to the piping system (7) in such a way that waste heat generated at the air conditioning unit (9) as a result of cooling operation of the air conditioning unit (9) can be transferred to the heating medium (5) and the heating medium (5) heated as a result of the transfer of the waste heat can be discharged by means of the piping system (7) in the direction of the medium storage unit (6).

2. Temperature control system (1) according to claim 1, characterized in that the heat / cold generator (4) is formed by a heat pump.

3. Temperature control system (1) according to one of the preceding claims, characterized in that the refrigeration machine (10) is designed in the manner of a mechanical refrigeration machine, preferably in the form of a compression refrigeration machine (13), or is designed in the manner of a thermoelectric refrigerator using at least one Peltier element (14).

4. Temperature control system (1) according to one of the preceding claims, characterized in that the air conditioning unit (9) comprises a heat exchanger (15) which is designed for heat exchange between a working medium of the refrigeration machine (10) and the heating medium (5), so that the waste heat of the air conditioning unit (9) can be transferred to the heating medium (5) by means of the heat exchanger (15).

5. Temperature control system (1) according to claim 4, characterized in that the air conditioning unit (9) is operatively connected to the piping system (7) in such a way that both the heating medium (5) can be fed to the heat exchanger (15) of the air conditioning unit (9) via the piping system (7) and the heating medium (5) heated as a result of the transfer of the waste heat of the working medium of the refrigeration machine (10) can be discharged from the heat exchanger (15) of the air conditioning unit (9) via the piping system (7) in the direction of the medium storage (6).

6. Temperature control system (1) according to one of the preceding claims, characterized in that the air conditioning unit (9) is formed by a mobile air conditioning unit which, if necessary, can be moved manually and without tools from the at least one room (2) of the building (3) to another room (2') of the building (3).

7. Temperature control system (1) according to one of the preceding claims, characterized in that the air conditioning unit (9) is connected to the piping system (7) by means of two branch lines (16, 17), which are preferably designed in the form of flexible liquid hoses, wherein preferably a first branch line (16) is connected to a supply line (11) of the piping system (7) and a second branch line (17) is connected to a return line (12) of the piping system (7).

8. Method for tempering at least one room (2) of a building (3) by means of a tempering system (1) according to one of the preceding claims, comprising the following method steps: the air conditioning unit (9) is arranged in the at least one room (2) and is operated in a cooling mode in order to cool the room air of the room (2) to cool; Waste heat from the air conditioning unit (9) which arises as a result of the cooling operation is transferred to the heating medium (5) by means of the fluidic connection of the air conditioning unit (9) to the piping system (7) and is discharged via the piping system (7) in the direction of the medium storage tank (6); the heating medium (5) is cooled at least temporarily by means of the heat / cold generator (4); the cooled heating medium (5) is conducted via the piping system (7) in the direction of the at least one heating device (8), wherein the heating medium (5) absorbs waste heat from the air conditioning unit (9) as a result of the fluidic connection with the air conditioning unit (9).

9. The method according to claim 8, characterized in that the heat / cold generator (4) is formed by a heat pump, wherein the heat / cold generator (4) begins cooling the heating medium (5) as soon as a temperature of the heating medium (5) in the medium storage (6) at a reference point relevant for the supply of the heating medium (5) to the heat / cold generator (4) exceeds a preset reference temperature.

10. Method according to one of claims 8 or 9, characterized in that the air conditioning unit (9) is formed by a mobile air conditioning unit, wherein the fluidic connection of the air conditioning unit (9) to the piping system (7) is dissolved for the purpose of cooling another room (2') of the building (3), the air conditioning unit (9) is moved into the other room (2') and then the fluidic connection of the air conditioning unit (9) to the piping system (7) is restored there.

11. Building (3) comprising a building shell (33), a plurality of rooms (2, 2') arranged within the building shell (33), a temperature control system (1) for temperature control of at least one of the rooms (2, 2'), characterized in that the temperature control system (1) is designed according to one of claims 1 to 7.

12. Building (3) according to claim 11, characterized in that the heat / cold generator (4) is formed by a heat pump, wherein preferably at least one heat exchanger of the heat / cold generator (4) cooperating with an evaporator of the heat / cold generator (4) is arranged outside the building envelope (33).

13. Air conditioning unit (9) for cooling room air of at least one room (2), comprising a housing (38), a refrigeration machine (10) arranged within the housing (38) in the manner of a compression refrigeration machine (13), a heat exchanger (15) which is assigned to a condenser (25) of the refrigeration machine (10) or forms the condenser (25) of the refrigeration machine (10), characterized in that the heat exchanger (15) is provided and designed to transfer waste heat, which arises as a result of cooling operation of the refrigeration machine (10), from a working medium of the refrigeration machine (10) to a liquid heating medium (5) of a higher-level temperature control system (1).

14. Air conditioning unit (9) according to claim 13, characterized in that the air conditioning unit (9) comprises a supply connection (39) for supplying the liquid heating medium (5) to the heat exchanger (15) and a discharge connection (40) for discharging the heating medium (5) from the heat exchanger (15).

15. Air conditioning unit (9) according to one of claims 13 or 14, characterized in that it is formed by a mobile air conditioning unit (9) which has a plurality of rollers (44) by means of which the air conditioning unit (9) can be moved in a rolling manner on a surface.

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