Device for providing heat energy for use in a building with at least one heat consumer in conjunction with a heat pump

Abstract

Device for providing thermal energy for use in a building with at least one heat consumer in conjunction with a heat pump (3), the device comprising a swimming pool (2) at least partially filled with water and the heat pump (3), characterized in that the heat pump (3) and at least one heat exchanger (1) and / or at least one mixer are thermally coupled, that the swimming pool (2) and the heat exchanger (1) and / or the mixer are thermally coupled, and that at least one geothermal probe (4) and the heat exchanger (1) and / or the mixer are thermally coupled, at least one circuit with at least one medium being designed as a heat exchanger.

Description

The invention relates to a device for providing thermal energy for use in a building, having at least one heat consumer in conjunction with a heat pump, wherein the device has a swimming pool at least partially filled with water and a heat pump.A heating system is known from the publication DE 27 12 550 A1. This is designed for the utilization of solar energy by means of solar collectors and geothermal heat, wherein a swimming pool serving as a heat store is in heat exchange with the soil surrounding the swimming pool. The swimming pool is further connected to solar collectors. A heat pump is arranged between the swimming pool serving as a heat store and a consumption circuit.The document EP 3 591 310 A1 discloses a method and a device for storing a heat, wherein a swimming pool is used for storing the heat for a heat consumer. For this purpose, a heat pump system, the heat consumer and the swimming pool are thermally coupled to one another. The swimming pool is furthermore designed as a heat store for heat generated by means of a solar thermal system.The invention specified in claim 1 is based on the object of efficiently using a swimming pool at least partially filled with water as a heat store and thus renewable energies and to increase the energy efficiency of a building.This object is achieved by the features set out in claim 1.The device for providing thermal energy for use in a building having at least one heat consumer in conjunction with a heat pump, wherein the device has a swimming pool at least partially filled with water and a heat pump, is distinguished in particular in that the swimming pool at least partially filled with water can be used as a heat store and the energy efficiency of a building is thus increased.For this purpose, the heat pump and at least one heat exchanger and / or at least one mixer, the swimming pool and the heat exchanger and / or the mixer and at least one geothermal heat probe and the heat exchanger and / or the mixer are thermally coupled, wherein at least one circuit with at least one medium is designed as a heat transfer medium.The use of a swimming pool at least partially filled with water as a heat store advantageously offers the possibility of using different energy sources such as solar energy, ambient heat and geothermal heat in order to use the swimming pool at least as a seasonal heat store. As a result, not only can the bath compliance be improved in summer, but also the heating power can be increased, in particular in the transition time.The swimming pool with a capacity of, for example, 50 cubic metres is heated by different heat sources. Direct solar radiation plays an essential role. In addition, ambient heat is used to further heat the water. For this purpose, the geothermal heat probe serves as an additional thermal support. This combination makes it possible to use the swimming pool both as a heat sink and as a heat source for the heat pump. For example, a geothermal heat pump can be used particularly efficiently for this purpose, which can rely on both the geothermal heat probe and the water in the swimming pool. This provides a flexible use of the stored energy depending on the seasonal conditions.In spring, summer and autumn, the swimming pool can be used primarily for bathing, being heated by solar energy. At the same time, it is possible to store excess heat. In particular in the autumn and spring, the swimming pool serves as an additional heat source for the heat pump. The water temperatures are then between 20° C. and 24° C., for example, so that the heat pump can operate with an increased flow temperature of 32° C., for example, whereby the COP (coefficient of performance) improves. This means that with one kilowatts hour of current up to six kilowatts hours of heat can be generated. In winter, on the other hand, the water temperatures drop too much, so that the swimming pool is less efficient as a heat source. During this time, the heat pump relies primarily on geothermal heat, which represents a reliable heat source at constant ten degrees Celsius. For this purpose, the heat exchanger is thermally coupled to the evaporator and the at least one heat consumer of the building is thermally coupled to the condenser of the heat pump.Advantageous embodiments of the invention are listed in the following developments and embodiments. These may develop the device for providing thermal energy for use in a building having at least one heat consumer, wherein the device has a swimming pool at least partially filled with water and a heat pump, individually or in a combination.In one embodiment, the heat exchanger is thermally connected to the heat pump via a circuit, a circuit to the swimming pool and a circuit to the geothermal heat probe.The circuits are circuits which are separate from one another and each have a medium as heat carrier, the circuits being thermally coupled to one another via the heat exchanger. In the circulation of the heat exchanger and the swimming pool, the water is the medium as heat carrier. Separate media can thus be used in the circuits heat exchanger and heat pump and heat exchanger and geothermal heat probe. For transporting the media, each of the circuits may have a pump. The pumps may be connected for operation with a controller.In one embodiment, the heat pump is thermally connected to the swimming pool in a circuit via the heat exchanger. Furthermore, the geothermal heat probe is thermally connected to the heat exchanger in a further circuit. The circuits are circuits which are separate from one another and each have a medium as heat carrier, which medium is thermally coupled to one another via the heat exchanger. In the circuit with the heat pump, the heat exchanger and the swimming pool, water serves as heat carrier. In the circuit with the heat exchanger and the geothermal heat probe, in particular a non-freezing medium is used as heat carrier. The circuits can each have a pump for transporting the media. In addition, at least one valve can be located between the heat exchanger and the swimming pool, so that the swimming pool can be decoupled from the heat exchanger. The pumps and an actuating device of the valve can be connected to a control device for influencing the transport of the heat carriers.In one embodiment, the heat pump is thermally connected via the heat exchanger as a mixer to the swimming pool and the geothermal heat probe in at least one circuit, wherein the circuit has a medium as a heat carrier. The circuit may have a pump for transporting the medium. Furthermore, valves can be located in the circuits between both the heat exchanger and swimming pool and also the heat exchanger and geothermal heat probe, so that these circuits can be operated together or separately from one another. For this purpose, the pump and the actuating devices of the valves can be connected to a control device.In one embodiment, at least one photovoltaic-thermal solar collector (PVT collector) can be thermally connected to the geothermal heat probe in a circuit via the heat exchanger, wherein the circuit has a medium as heat carrier. For this purpose, the medium can be, in particular, a non-freezing medium.In one embodiment, at least one photovoltaic-thermal solar collector (PVT collector) can be thermally connected to the swimming pool in a circuit via the heat exchanger, wherein the circuit has a medium as heat carrier. The medium is water for this purpose.In one embodiment, at least one photovoltaic-thermal solar collector (PVT collector) can be thermally connected via the heat exchanger as a mixer to the swimming pool and the geothermal heat probe in a circuit, wherein the circuit has a medium as a heat carrier.With the respective photovoltaic-thermal solar collector of the respective embodiment, the efficiency of the device for providing thermal energy for use in a building having at least one heat consumer can be further increased. By means of the photovoltaic-thermal solar collector, also known as a PVT collector, both photovoltaics and solar thermals are combined, wherein hot water is provided at temperatures above fifty degrees Celsius. Excess heat can be conducted into the swimming pool water. The electrical energy of the photovoltaic thermal collector can be supplied to an electrical load. For example, the heat pump and / or the pump of a circuit can be operated in this way.In a further development, at least one circuit can have at least one pump and at least one temperature sensor, which are connected to a control device.In a further development, at least one circuit can have at least one valve having an actuating device and at least one temperature sensor, which are connected to a control device.In one embodiment, the control device can be configured in conjunction with the at least one temperature sensor and the at least one pump and / or the at least one valve such that the swimming pool and / or the geothermal heat probe are a heat sink or a heat source.In one embodiment, the control device can be configured in conjunction with the at least one temperature sensor and the at least one pump and / or the at least one valve such that the swimming pool and / or the geothermal heat probe and / or the photovoltaic-thermal solar collector are a heat sink or a heat source.An exemplary embodiment of the invention is in each case illustrated in principle in the drawings and is described in more detail below.The following are shown: FIG. 1 shows a device for providing thermal energy for use in a building having at least one heat consumer in conjunction with a heat pump, FIG. 2 shows a device for providing thermal energy with three circuits, FIG. 3 shows a device for providing thermal energy with two circuits, FIG. 4 shows a device for providing thermal energy with a circuit, and FIG. 5 shows a photovoltaic-thermal solar collector in connection with a heat exchanger.A device for providing thermal energy for use in a building with at least one heat consumer in connection with a heat pump 3 essentially consists of a swimming pool 2 at least partially filled with water, the heat pump 3, at least one geothermal heat probe 4 and a heat exchanger 1 and / or a mixer.FIG. 1 shows a device for providing thermal energy for use in a building having at least one heat consumer in conjunction with a heat pump 3 in a basic illustration.The device for providing thermal energy has thermal couplings between the heat pump 3 and the heat exchanger 1, the swimming pool 2 and the heat exchanger 1 and the geothermal heat probe 4 and the heat exchanger 1, wherein at least one circuit with at least one medium is designed as a heat transfer medium.FIG. 2 shows a device for providing thermal energy with three circuits in a basic illustration.In a first embodiment, the heat exchanger 1 is thermally connected via a circuit to the heat pump 3, a circuit to the swimming pool 2 and a circuit to the geothermal heat probe 4. The circuits are circuits which are separate from one another and each have a medium as heat carrier, the circuits being thermally coupled to one another via the heat exchanger 1.Each of the circuits has a respective pump 5 which is connected to a control device.FIG. 3 shows a device for providing thermal energy with two circuits in a basic illustration.In a second embodiment, the heat pump 3 is thermally connected to the swimming pool 2 in a circuit via the heat exchanger 1. The geothermal heat probe 4 is thermally connected to the heat exchanger 1 in a further circuit. The circuits are circuits which are separate from one another and each have a medium as heat carrier, the circuits being thermally coupled to one another via the heat exchanger 1.Each of the circuits has a respective pump 5 which is connected to a control device.FIG. 4 shows a device for providing thermal energy with a circuit in a basic illustration.In a third embodiment, the heat pump 3 is thermally connected via the heat exchanger 1 as a mixer to the swimming pool 2 and the geothermal heat probe 4 in at least one circuit, wherein the circuit has a medium as a heat carrier.The circuit comprises a pump 5 connected to a control device. Furthermore, at least one valve 6 is arranged in each case in at least one thermal connection between mixer and swimming pool 2 and between mixer and geothermal heat probe 4. The pump 5 and actuators of the valves 6 are connected to a control device.FIG. 5 shows a photovoltaic-thermal solar collector 7 in conjunction with a heat exchanger 1 in a basic illustration.In addition to the embodiments, each of these embodiments may be supplemented with at least one photovoltaic-thermal solar collector 7.For this purpose, in a further embodiment, the photovoltaic-thermal solar collector 7 can be thermally connected to the geothermal heat probe 4 via the heat exchanger 1, in a circuit, wherein the circuit has a medium as heat carrier.In a further embodiment, the photovoltaic-thermal solar collector 7 can be thermally connected to the swimming pool 2 via the heat exchanger 1 in a circuit, wherein the circuit has a medium as heat carrier.In a further embodiment, the photovoltaic-thermal solar collector 7 can be thermally connected via the heat exchanger 1 as a mixer to the swimming pool 2 and the geothermal heat probe 4 in a circuit, wherein the circuit has a medium as a heat carrier.The circuits of the embodiments can advantageously each have at least one temperature sensor. For this purpose, the temperature sensors are connected to the respective control device.The control device is configured in conjunction with the at least one temperature sensor and the at least one pump and / or the at least one valve such that the swimming pool and / or the geothermal heat probe are a heat sink or a heat source.Furthermore, the control device in conjunction with the at least one temperature sensor and the at least one pump and / or the at least one valve is designed such that the swimming pool and / or the geothermal heat probe and / or the photovoltaic-thermal solar collector are a heat sink or a heat source.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 27 12 550 A1

[0002] EP 3 591 310 A1

[0003]

Claims

Device for providing thermal energy for use in a building, having at least one heat consumer in conjunction with a heat pump (3), wherein the device has a swimming pool (2) which is at least partially filled with water and the heat pump (3), characterized in that the heat pump (3) and at least one heat exchanger (1) and / or at least one mixer are thermally coupled, in that the swimming pool (2) and the heat exchanger (1) and / or the mixer are thermally coupled, and in that at least one geothermal heat probe (4) and the heat exchanger (1) and / or the mixer are thermally coupled, wherein at least one circuit having at least one medium is designed as a heat transfer medium.Device according to claim 1, characterised in that the heat exchanger (1) is thermally connected via a circuit to the heat pump (3), a circuit to the swimming pool (2) and a circuit to the geothermal heat probe (4), that the circuits are circuits which are separate from one another and each have a medium as heat carrier, and that the circuits are thermally coupled to one another via the heat exchanger (1).Device according to at least one of claims 1 and 2, characterised in that the heat pump (3) is thermally connected via the heat exchanger (1) to the swimming pool (2) in a circuit, that the geothermal heat probe (4) is thermally connected to the heat exchanger (1) in a further circuit, that the circuits are circuits separated from one another each with a medium as heat carrier and that the circuits are thermally coupled to one another via the heat exchanger (1).Device according to at least one of claims 1 to 3, characterised in that the heat pump (3) is thermally connected via the heat exchanger (1) as a mixer to the swimming pool (2) and the geothermal heat probe (4) in at least one circuit, that the circuit has a medium as a heat carrier.Device according to at least one of claims 1 to 4, characterised in that at least one photovoltaic-thermal solar collector (7) is thermally connected via the heat exchanger (1) to the geothermal heat probe (4) in a circuit and that the circuit has a medium as heat carrier.Device according to at least one of claims 1 to 5, characterised in that at least one photovoltaic-thermal solar collector (7) is thermally connected to the swimming pool (2) via the heat exchanger (1) in a circuit and that the circuit has a medium as heat carrier.Device according to at least one of claims 1 to 6, characterised in that at least one photovoltaic-thermal solar collector (7) is thermally connected via the heat exchanger (1) as a mixer to the swimming pool (2) and the geothermal heat probe (4) in a circuit and that the circuit has a medium as a heat carrier.Device according to at least one of claims 1 to 7, characterised in that at least one circuit has at least one pump (5) and at least one temperature sensor, which are connected to a control device.Device according to at least one of claims 1 to 8, characterised in that at least one circuit has at least one valve (6) having an actuating device and at least one temperature sensor, and in that the actuating device and the temperature sensor are connected to a control device.Device according to at least one of claims 1 to 9, characterised in that the control device in conjunction with the at least one temperature sensor and the at least one pump (5) and / or the at least one valve (6) is designed such that the swimming pool (2) and / or the geothermal heat probe (4) are a heat sink or a heat source.Device according to at least one of claims 1 to 10, characterised in that the control device in conjunction with the at least one temperature sensor and the at least one pump (5) and / or the at least one valve (6) is designed such that the swimming pool (2) and / or the geothermal heat probe (4) and / or the photovoltaic-thermal solar collector (7) are a heat sink or a heat source.

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