DE202012009151U1 - Extended thermal energy supply system ,, solar heat manager " - Google Patents

Abstract

Thermal energy supply system, which provides heat for at least one consumer, within a drinking water heater (II) with a drinking water circuit and / or at least one heating circuit (IV), the at least one module solar station (I) for generating solar heat in a first fluid of a collector circuit and a Heat pump system (V-Z1) for obtaining geothermal heat in a second fluid of a primary heat pump circuit, characterized in that • the collector circuit of the module solar station (I) and a regeneration circuit of a module probe regeneration (VII) via a module probe regeneration ( VII) arranged bifunctional heat exchangers (2A) are coupled, • wherein the module probe regeneration (VII) has a flow (VL) with a first and second flow branch (VL; AB-B / VL; AB-A) and a return flow ( RL), which are integrated in the primary heat pump cycle, • where the first flow branch (VL; AB -B) before a heat pump unit (WP) of the heat pump system (V-Z1) and the second flow branch (VL; AB-A) after the heat pump unit (WP) in front of a device (S) of the heat pump system (V-Z1) that absorbs geothermal energy, are coupled into the primary heat pump circuit and ...

Description

The invention relates to a thermal energy supply system (hereinafter referred to as plant or as a solar heat manager), which includes a modular hydraulic station with a solar thermal management system. The system works on the principle of consumption before storage of solar energy. The system is currently managed by a controller with the functions Boiler control, Heating circuit control, Domestic hot water control, Solar control with solar heating support (optional solar cooling) and Buffer storage and unloading management and internal diagnostics program for plant optimization.

The system is delivered in four segments with all fittings, pumps, actuators and sensors pre-assembled and pre-wired and is mounted on a uniform frame-stand construction. The plant comprises four segments. A transfer segment, a heating circuit segment, a solar segment and a domestic hot water segment. Within these segments, several modules are linked together.

The thermal energy supply system comprises according to the prior art according to 1 following modules, which reference numerals I to VI assigned:
A module solar station I ,
One module DHW heating (TWE) / cold water connection II ,
A module solar heating III
A module heating circuit IV ,
A module primary supply V ,
A rule module VI ,

One of the planners' principles pursued by the design of the thermal energy supply system is the efficient use of the solar yield of the thermal energy supply system to optimize the overall plant operation with the aim of maximizing energy consumption for district heating, gas, oil or biomass. The economic efficiency is defined by the amount of total energy savings. Complete or at least partially solar thermal operated systems can and must be economically viable for landlords and tenants alike. If solar thermal systems are to be used successfully, the lack of economic efficiency, the dependency on subsidies, competence deficits with planners and installers and the resulting errors in plant construction must be ruled out. Core of the current known technical standard is a completely pre-assembled hydraulic station, a solar thermal system and a primary energy plant for heat generation (based on district heating or oil or gas or biomass) to a heat energy supply system with two heat generators (collector field of the solar thermal system and heating boilers based on district heating or oil or gas or biomass). An integrated control with remote data transmission takes over the complete heat energy management of the house. In practical use, in addition to above-average collector yields of the solar thermal system, there is also an increase in the efficiency of the conventional heat generator used in each case for the primary energy plant. The size of all plant components is variable. The associated control technology of the thermal energy supply system always ensures that the energy is always used from the viewpoint of maximum efficiency. All parameters can be measured, controlled and evaluated by remote data transmission via internet connection. Thanks to a convenient access control, access to the data and parameters for different user groups can be defined differently. The measuring and control technology of the system makes it possible to feed the solar energy according to the respective consumption requirements where the greatest savings can be achieved, for example for a direct drinking and / or Heizwassererwärmung, for the circulation loss compensation or for charging connected drinking water peak load and buffer memory , The size of the collector field of the solar heating system or the volume of the buffer storage are completely variable and are defined according to consumption. In addition, the system offers the possibility to record and control the conventional heating, circulation and domestic water circuits and, if necessary, to adapt the system quickly and efficiently. This includes z. As a consumption-related measurement of the power provided when connected to a district heating network.

All necessary measurement data is recorded by the controller and forwarded via remote data transmission to a maintenance station. From there, the entire system is monitored, controlled and statistically evaluated. The operator thus has the opportunity to extensively control the solar system, operate it efficiently and have the opportunity to market it transparently to the outside - right through to the Internet connection!

Different access levels within the remote monitoring separate the visualization and the control from each other so that the maintenance of the installations can be offered as a service by the installation or service company, while the optical function of the installation is also provided by the investor and / or Contractor is visible. The prerequisite is to plan the systems for new construction or renovation measures right from the start. If, for financial reasons, you want to put the expenses of the solar system to the end of a refurbishment or even install it only one or two years later, the concept also offers you a new standard here: solar retrofitting. Thanks to a consistently modular design of the system, the solar part can be connected and / or put into operation hydraulically and control-technically at a later time without much effort. Advantages include a detailed consumption data analysis for optimal assembly of the system, optimization of the solar buffer volumes, minimization of hot water storage volumes and flexibility in adapting to object-specific structures through modular design (collector field, hot water preparation, solar heating support, heating circuit connection, installation surface). The system requires only a small space due to its compact design at its site. Advantageously, safety technology and remote monitoring are completely integrated and connections for expansion vessels are already prepared. The compact design results in the form of two completely prefabricated and tested distributor bars and electrical plug-in connections with control cabinet, which means that no installation errors are possible in the system.

Maximum operational safety during operation is achieved by a 24-hour monitoring with immediate error message to the service partner via SMS / e-mail. There is a permanent plausibility check of all energy systems with an immediate warning message to the service partner via SMS / E-Mail.

Furthermore, a diagnostic software for remote optimization or manufacturer support in case of service, a heating cost reduction by increasing the annual efficiency of condensing boilers, a power reduction of district heating connections as well as a system optimization by the system integrated solar heating system.

The plant allows optimized management of two heat sources (solar heat and district heating, gas, oil or biomass) from two heat generators and a layer buffer in which the not immediately consumed solar heat is cached.

The thermal energy supply system, marketed as a so-called solar heat manager, optimizes the management of solar and conventional heat (from district heating, gas, oil or biomass) with solar priority. The following data can be archived. Quantity of heat District heating or boiler for heating and DHW heating Conventional (kWh) / Heat quantity Solar (kWh) / Global radiation at collector level (kWh / m ² ) / Volume Hot water (m ³ ) Optional: Volume Gas (m ³ ) Electric energy Operating current of the entire system (kWh) ,

In the thermal energy supply system, a heat pump system and optionally an exhaust air heat pump system as an additional primary supply system using the primary medium geothermal or exhaust air to be integrated optimally and efficiently within the previous module primary supply to the primary media district heating, gas, oil or biomass.

From the prior art, the publication DE 10 2008 036 712 A1 known. The document describes an arrangement for providing hot service water, with a collector circuit in which a first fluid is conveyed, wherein the collector circuit comprises a solar collector, a solar supply line from the solar collector to a consumer assembly and a solar return line from the consumer assembly to the solar collector. Further, a brine circuit is arranged, in which a second fluid is conveyed, wherein the brine circuit means for collecting geothermal or environmental heat, a heat pump, a brine supply line from the device for collecting geothermal heat through the heat pump to the consumer assembly and a brine return line from the consumer assembly to Having means for collecting geothermal energy. A heat exchanger is provided, through which both the collector circuit and the brine circuit run, wherein the heat exchanger transfers heat from the first fluid in the collector circuit to the second fluid in the brine circuit.

The invention has for its object to ensure that a heat pump system and optionally an exhaust air heat pump system can be integrated into a thermal energy supply system even more optimal and efficient than before.

The starting point for the invention is a heat energy supply system, which provides heat for at least one consumer, within a domestic water heating with a drinking water circuit and / or within at least one heating circuit, the at least one module solar station for recovery of solar heat in a first fluid of a collector circuit and a heat pump system for recovering geothermal heat in a second fluid of the primary heat pump cycle.

• • wobei das Modul-Sondenregeneration einen Vorlauf mit einem ersten und zweiten Vorlauf-Zweig und einen Rücklauf aufweist, die in den primären Wärmepumpenkreislaufes eingebunden sind,
• • wobei der erste Vorlauf-Zweig vor einer Wärmepumpeneinheit des Wärmepumpensystem und der zweite Vorlauf-Zweig nach der Wärmepumpeneinheit vor einer die Erdwärme aufnehmenden Einrichtung des Wärmepumpensystem in den primären Wärmepumpenkreislauf eingekoppelt sind und der Rücklauf ausgangseitig der die Erdwärme aufnehmenden Einrichtung des Wärmepumpensystem angeschlossen ist,
• • so dass das zweite Fluid des primären Wärmepumpenkreislaufes über das Modul-Sondenregeneration geführt ist,
• • wobei durch Freigabe des ersten Vorlauf-Zweiges in einer ersten Funktion des bifunktionalen Wärmeübertragers eine direkte Regeneration der die Erdwärme aufnehmenden Einrichtung des Wärmepumpensystems und
• • durch Freigabe des zweiten Vorlauf-Zweiges in einer zweiten Funktion des bifunktionalen Wärmeübertragers die Erzeugung eines Temperaturhubes im primären Wärmepumpenkreislauf und eine indirekte Regeneration der die Erdwärme aufnehmenden Einrichtung des Wärmepumpensystems bewirkbar ist.

According to the invention, the collector circuit of the module solar station and a regeneration circuit of a module probe regeneration are coupled via a bifunctional heat exchanger arranged in the module probe regeneration,

• Wherein the module probe regeneration has a flow with a first and second flow branch and a return, which are integrated in the primary heat pump cycle,
• Wherein the first flow branch in front of a heat pump unit of the heat pump system and the second flow branch after the heat pump unit are coupled into the primary heat pump cycle upstream of a heat recovery system of the heat pump system and the return is connected on the output side of the heat recovery system of the heat pump system,
• So that the second fluid of the primary heat pump cycle is routed through the module probe regeneration,
• • wherein by releasing the first flow branch in a first function of the bifunctional heat exchanger, a direct regeneration of the geothermal receiving means of the heat pump system and
• • By releasing the second flow branch in a second function of the bifunctional heat exchanger, the generation of a temperature increase in the primary heat pump cycle and an indirect regeneration of the geothermal receiving device of the heat pump system can be effected.

In a preferred embodiment, it is provided that the module probe regeneration comprises at least one reversing valve in the flow of the bifunctional heat exchanger, in the first function of the bifunctional heat exchanger for direct regeneration of the geothermal receiving device of the heat pump system, the first flow branch with a in this Vorlauf- Branch arranged first regeneration circulation pump releases, and in the second function of the bifunctional heat exchanger for generating the temperature in the primary heat pump cycle and the indirect regeneration of the geothermal receiving device of the heat pump system releases the second flow branch, in which a second regeneration circulation pump arranged is.

As the geothermal receiving devices are considered geothermal probes, according to the following embodiment and earth absorber and earth collectors and ice storage and / or water storage or so-called latent material. The device uses the geothermal heat of the surrounding solid material (soil) and / or the liquid present within the solid material.

In a preferred embodiment of the invention, a control valve is arranged in a return of the regeneration cycle, which communicates with the flow of the regeneration cycle prior to splitting into the first and second flow branch.

The control valve allows a temperature-dependent control of the flow branches. If the first flow branch is opened, the control of this flow branch takes place and if the second flow branch is opened, this is controlled.

In the release of the first flow branch in the first function of the bifunctional heat exchanger, which provides for a direct regeneration of the geothermal receiving device of the heat pump system, the control valve is advantageously used to control the inlet temperature of the second fluid in the geothermal receiving device the heat pump unit and in particular to avoid overheating of the geothermal receiving device.

In the release of the second flow branch in the second function of the bifunctional heat exchanger, which is provided for the generation of a temperature in the primary heat pump cycle and for the indirect regeneration of the geothermal receiving device of the heat pump system, the control valve is advantageously used to control the Input temperature in the heat pump unit and also to avoid overheating of the geothermal receiving device.

The scheme is in the embodiment in connection with 2 explained in more detail.

The thermal energy supply system is modular. The bifunctional heat exchanger, the changeover valve and preferably the control valve are according to the invention in an advantageous manner also in the new module called module probe regeneration VII arranged.

With the modular integration of a heat pump system as a primary heat supply system, it is provided according to the invention, the module probe regeneration VII modular into the modular heat energy supply system (from the modules I - VI ) to integrate.

Furthermore, it is preferred that the bifunctional heat exchanger in the module probe regeneration is arranged in a cascade of at least two series-connected heat exchangers.

Advantageously, it is provided that the bifunctional heat exchanger is arranged in the module probe regeneration behind at least one heat exchanger and in front of a further heat exchanger.

In a preferred embodiment of the invention, a heat exchanger which is arranged in the module solar station, coupled with a module drinking water heating (TWE) / cold water connection, wherein the heat exchanger for a supply of heat in the module drinking water heating (TWE) / cold water connection provides.

In a further preferred embodiment of the invention, another heat exchanger, which is also arranged lying in front of the heat exchanger of the module probe regeneration in series, is arranged in a module solar heating, which is coupled to a module heating circuit to which a heating circuit connected is, wherein the heat exchanger in the module solar heating ensures a feed of heat into the heating circuit.

Furthermore, it is advantageously provided that an even further heat exchanger is arranged in the collector circuit of the module solar station, said further heat exchanger lying in series behind the heat exchanger in the regeneration cycle of the module probe regeneration. This still further heat exchanger is responsible for the injection of heat into a layer buffer within a buffer circuit.

It is further provided that the thermal energy supply system for providing the heat in addition to the module solar station and the heat pump system in the module primary supply in combination with the module solar station and / or the heat pump system a conventional heat generator either on the basis (district heating, gas, oil or Biomass).

Finally, it is optionally provided that the heat energy supply system for providing the heat in addition to the module solar station and the heat pump system and optionally a conventional heat generator in the module primary supply additionally has an exhaust air heat pump system which is integrated into the secondary heat pump cycle.

The invention relates to a method for providing heat for at least one consumer of a thermal energy supply system that includes a consumer as a circuit for drinking water heating and / or at least one heating circuit, wherein the heat at least in a module solar station as solar heat in a first fluid of a collector circuit and in a heat pump system is obtained as geothermal in a second fluid of a primary heat pump cycle.

According to the invention, the collector circuit of the module solar station and the first and second flow branch of the regeneration circuit of the module probe regeneration are coupled via the bifunctional heat exchanger arranged in the module probe regeneration, wherein the module probe regeneration at least one reversing valve in the flow of the heat exchanger within the regeneration cycle.

The flow and the return of the regeneration circuit are filled with the second fluid, wherein the first flow branch before a heat pump unit of the heat pump system and the second flow branch after the heat pump unit but are coupled before the geothermal receiving means of the heat pump system in the primary heat pump cycle, wherein the return side of the earth heat receiving device of the heat pump system is connected, so that the second fluid of the primary heat pump cycle is performed on the module probe regeneration.

The primary heat pump cycle is thus no longer fed back to the heat pump unit, as is customary in the prior art, on the output side of the device which absorbs the geothermal heat, but the output side of the geothermal receiving device forms the return of the new regeneration cycle in the module probe regeneration.

The output side of the primary heat pump cycle is routed via the module probe regeneration, whose feeders are coupled into the heat pump system as described.

The invention will be explained below in an embodiment with reference to the accompanying drawings. Show it:

1 a standard circuit diagram of a known thermal energy supply system with primary supply via a solar collector and / or a boiler (gas, oil, biomass) or district heating (direct) with a controlled heating circuit and domestic hot water (TWE) in a drinking water circuit in the flow with peak load storage;

2 a circuit diagram of the new thermal energy supply system with the expansion of the thermal energy supply system according to the invention 1 with additional primary supply with a heat pump system and optionally an exhaust air heat pump system, as well as with a new module probe regeneration.

The individual modules I to VII are in the 1 and 2 shown separated by broken lines.

The essential components are each marked with reference numerals according to the list of reference numerals. On the necessary for understanding and essential to the invention components will be discussed in more detail with reference to the reference numerals.

1 shows a known standard circuit diagram for the primary supply (connection to the module primary supply V ) via a heat generator (gas, oil, biomass) or district heating (direct) - not shown - with a regulated heating circuit [shown as thin solid lines] in the module heating circuit IV and DHW heating (TWE) in the module TWE / cold water connection II within a drinking water circuit [shown as thin dashed lines] in flow with peak load storage SLS.

The thermal energy supply system further includes the module solar station I ,

To the module solar station I Via a collector circuit [shown as solid solid lines], a collector field K and the layer buffer memory PSP are connected.

The dimensioning of the module heating circuit IV takes place according to the size of the collector field K. The collector field K is flowed through, for example, with a predefinable constant volume flow of 20 l / h · m ² net collector area. In the module solar station I is the heat exchanger 2 arranged, which couples the collector field K in the collector circuit with a buffer circuit [shown as bold dashed lines] the layer buffer memory PSP.

The thermal energy supply system also includes module domestic hot water heating (TWE) / cold water connection II which has one in the collector circuit of the module solar station I arranged heat exchanger 1 with module DHW heating (TWE) / cold water connection II is coupled.

DHW heating in module DHW heating (TWE) / cold water connection II takes place either through the solar system via the module solar station I and / or conventionally via boiler or district heating via heating circuit of the module primary supply V. The hot water is produced in the flow principle with a peak load storage SLS.

The thermal energy supply system also includes a module solar heating III , which has another heat exchanger 25 and also shown as a heating circuit [shown as thin solid lines].

The further heat exchanger 25 in module solar heating III serves the heat transfer to the heating support. For example, the further heat exchanger 25 , In particular arranged a plate heat exchanger and according to the flow rate of the heating circuit in the module heating circuit IV Heating Module Heat Solar Heating Circuit III connected, designed.

The thermal energy supply system also includes the module heating circuit IV , At the module heating circuit IV the connection of the at least one heating circuit of the thermal energy supply system takes place.

The thermal energy supply system further comprises a module primary supply V ,

With the module primary supply V Within the thermal energy supply system, the connection of a heat generator or a local / district heating line (also referred to as energy injector) to the module heating circuit IV and its heating circuit. The interface to a heat generator or the integration of local / district heating is located in the 1 and 2 at the shut-off valves 40 in the module primary supply V where the heat generator is incorporated into a heating circuit [shown as thin solid lines].

A module regulation VI ,

The module control VI takes over all control and regulation tasks within the thermal energy supply system.

The standard circuit diagram of 1 shows the principle of solar consumption before storage with three heat exchangers 1 . 25 . 2 in series and high-temperature (HT) short-term storage in the module solar panel station buffer PSP I and a management of two energy feeders optionally a first energy feeder conventionally (gas, oil, biomass) or district heating (directly) in the module primary supply V and a second energy feeder of the solar thermal system in the module solar station I ,

As explained, the collector field K with the module solar station I connected. In the module solar station I is the heat exchanger 1 arranged. The heat exchanger 1 , in particular a plate heat exchanger has the function of transferring the solar heat from the collector field K of the module solar station I to module DHW heating (TWE) / cold water connection II to ensure solar drinking water heating, a solar drinking water storage tank, a solar circulation loss compensation and a solar Legionellenprävention.

The same functions over the module DHW heating (TWE) / cold water connection II In this respect, no or no sufficient amount of solar heat from the module solar station I is available from the module primary supply V accepted.

In module solar heating III is the already mentioned heat exchanger 25 arranged. It has the function of feeding solar heat into a heating system, in particular to the module heating circuit IV Heating to the Module Solar III connected.

In the module solar station I is also the heat exchanger 2 arranged. It has the function of feeding solar excess heat from the collector field K of the module solar station I in the layer buffer memory PSP as high-temperature short-term storage and the outfeed of solar heat from the layer buffer PSP.

For the removal of heat, the switching valve 4 in the collector circuit of the module solar station I pressed the way AB-B, so that the solar heat from the layer buffer PSP to the heat exchanger 1 in the module solar station I and to the series-connected heat exchanger 25 in module solar heating III so that heat from the module drinking water heating (TWE) / cold water connection II and from the module heating circuit IV can be removed, so that the extracted heat from the layer buffer PSP heat through the heat exchanger 1 and 25 is used on demand, whereby the heat exchangers 1 and 25 fulfill the above functions.

The thermal energy supply system uses the solar heat via the heat exchangers 1 . 25 up to a temperature of approx. 30 ° C. The available solar heat of the medium - a first fluid - (for example, water-propylene glycol mixture) in the collector circuit of the module solar station I below 30 ° C is not used disadvantageously so far.

It is inventively provided, this in the collector circuit of the module solar station I Still available available heat stored in the first fluid of the collector circuit to make available for a heat pump system.

As a result, the previously unused heat of the solar thermal system (module solar station I ), which is insufficient to match the temperature level in the layer buffer PSP and the modules II . IV be used advantageously, instead, the temperature level of the brine (second fluid mostly a water-ethylene glycol mixture) of the heat pump system V-Z1 on the temperature side.

A second fluid (the brine) in the usual primary heat pump cycle (short: primary circuit) of a heat pump system V-Z1 has temperatures between -5 ° C and + 25 ° C, typically the temperature level is between about 5 ° C and 10 ° C and is thus well below the existing temperature of about. 30 ° in the collector circuit of the module solar station I even if the heat of the first fluid in the collector circuit of the module solar station I and the solar heating module III already through the heat exchanger 1 . 25 was largely withdrawn.

This heat potential with its respective temperature difference from the temperatures in the primary circuit of the heat pump system V-Z1 is now advantageously made available within the thermal energy supply system according to the invention.

The new extended circuit diagram of the 2 again shows the principle of solar consumption before storage, but with four heat exchangers 1 . 25 . 2 . 2A in-line and high-temperature (HT) short-term storage as well as low-temperature (NT) long-term storage in probes or ice storage (ice storage operation in change phase possible) as "direct probe regeneration" or preheating the brine (second fluid) of the heat pump unit in a temperature swing and associated "indirect probe regeneration "A newly integrated in the thermal energy supply system heat pump system V-Z1 as another primary provider in combination with the module primary care V or as an alternative to the module primary supply V by a module probe regeneration, which has been newly integrated into the thermal energy supply system VII ,

In the thermal energy supply system according to the invention, the new module probe regeneration VII modular integrated.

In this module probe regeneration VII is according to the invention another in the embodiment, a fourth heat exchanger 2A arranged.

It is understood that the function of the new heat exchanger 2A not necessarily the presence of the other heat exchanger 1 . 25 and 2 depends. In the proposed thermal energy supply system, however, in a preferred embodiment of the invention, conceptually, the plurality of heat exchangers 1 . 25 . 2A . 2 arranged in series, which can be reacted flexibly to the respective needs in an advantageous manner.

That is, the heat can be tailored to the respective consumer (layer buffer PSP in the module solar station I and / or to the module DHW heating (TWE) / cold water connection II and / or to the module heating circuit IV guided or just otherwise, in a heat pump system V-Z1 be used as explained below.

The heat exchanger 2A is in the embodiment between the heat exchanger 25 in module solar heating III and the heat exchanger 2 in the module solar station I again arranged in series.

It is on the one hand of the first fluid, in particular the water-propylene glycol mixture within the collector circuit of the module solar station I and on the other hand, the second fluid, in particular the brine of a water-ethylene glycol mixture, which is commonly used in primary heat pump cycles, within a regeneration cycle [shown as thin short and long dashed lines] of modulus probe regeneration VII flows through.

The new thermal energy supply system now allows with the help of the heat exchangers 1 . 25 . 2 additionally arranged heat exchanger 2A in module probe regeneration VII , In particular a plate heat exchanger according to the invention, a management of three energy feeders.

The thermal energy supply system made possible by means of the heat exchanger 1 in module DHW heating (TWE) / cold water connection II and the heat exchanger 25 in module solar heating III for the first a management of the module heating circuit IV and module DHW heating (TWE) / Cold water supply II , Which in each case to the first energy feeder the module primary supply V (District heating, gas, oil, biomass) are connected.

Second, a management of solar thermal high-temperature (HT) short-term storage in the module solar station I by means of the heat exchanger 2 in the module solar station I allows, with the switching valve 4 in the collector circuit in the module solar station I (Path AB-A) to the collector field K of the module solar station I is connected so that the solar heat can be stored in the buffer memory PSP.

In addition, according to the invention for the third management of the low temperature (NT) long-term storage / probe regeneration of solar heat through the heat exchanger 2A about the new module probe regeneration VII in the newly integrated heat pump system V-Z1 which allows the module primary supply V is assigned and represents the third energy feeder.

The heat exchanger 1 . 25 . 2 and are over the switching valve 4 in the collector circuit in the module solar station I (Path AB-A) to the collector field K of the module solar station I connected.

According to the invention, the heat exchanger 2A in the new module probe regeneration VII bifunctional and arranged as follows in the thermal energy supply system to be bifunctional can. The bifunctionality concerns the influence of the newly integrated heat pump system V-Z1 , as explained in more detail below.

The geothermal receiving device is hereinafter referred to only briefly as a probe S.

The advantageous bifunctionality of the new heat exchanger 2A in the new module probe regeneration VII consists of:
The first advantageous function of the heat exchanger VI . 2A is that by means of the new heat exchanger 2A an at least seasonal probe regeneration of a probe S of the additional heat pump system V-Z1 (Low-temperature long-term storage) via the new module probe regeneration VII he follows.

For this purpose, the additionally arranged heat pump system V-Z1 to the module primary supply V as a single primary supply (single energy feeder) or together with other conventional (district heating, gas, oil or biomass) primary utilities (as an additional energy feeder) connected.

For this purpose, the module primary supply V, another also prefabricated interface, by further shut-off valves 40 is represented, where the heat pump system V-Z1 is connected. These other shut-off valves 40 are near the heat pump unit WP above the shut-off valves 40 the conventional interface of the conventional primary supplier in the module primary supply V shown.

The first advantageous function is a direct probe regeneration of a probe S of the heat pump system V-Z1 causes. The heat pump system V-Z1 includes the probe S and the heat pump unit WP. The at least seasonal probe regeneration of the probe S of the heat pump system V-Z1 takes place when the heat pump unit WP is not in operation. Instead of a ground probe S could also be a ground collector, a buffer (ice / water) or another, suitable for the extraction of energy from geothermal or environmental heat element can be used.

As 2 shows are the collector circuit of the module solar station I and the regeneration cycle of the module probe regeneration VII over in module probe regeneration VII arranged bifunctional heat exchanger 2A coupled, wherein the module probe regeneration VII a flow VL with a first and second flow branch VL; AB-B / VL; AB-A and a return RL, which are integrated in the primary heat pump cycle.

In this case, the first flow branch VL; AB-B in front of a heat pump unit WP of the heat pump system V-Z1 and the second forward branch VL; AB-A after the heat pump unit WP in front of the probe S of the heat pump system V-Z1 coupled into the primary heat pump cycle and the return RL is the output side of the heat absorbing device S of the heat pump system V-Z1 connected so that the second fluid of the primary heat pump cycle as a regeneration cycle via one of the headers (VL, AB-B or VL, AB-A) and the return RL via the module probe regeneration VII is guided.

By releasing the first flow branch VL; AB-B of the regeneration cycle is in the first function of the bifunctional heat exchanger 2A a direct regeneration of the probe S of the heat pump system V-Z1 and by releasing the second flow branch VL; AB-A of the regeneration cycle is in the second function of the bifunctional heat exchanger 2A the generation of a temperature elevation in the primary heat pump cycle and an indirect regeneration of the probe S of the heat pump system V-Z1 effected.

2 further shows that the module probe regeneration VII at least one reversing valve 49 in the flow VL of the heat exchanger 2A includes, in the first function of the bifunctional heat exchanger 2A for direct regeneration of the geothermal receiving device S of the heat pump system V-Z1 the first flow branch VL; AB-B with one in this flow branch VL; AB-B arranged first regeneration circulation pump 51 releases, and in the second function of the bifunctional heat exchanger 2A for generating the temperature in the primary heat pump cycle and for the indirect regeneration of the probe S of the heat pump system V-Z1 the second flow branch VL; AB-A releases, in which a second regeneration circulation pump 52 is arranged.

Under the above-mentioned at least seasonal probe regeneration, there is a supply of heat into the probe S of the additional heat pump system V-Z1 understood, which always takes place when the heat pump unit WP is not running and solar excess heat from the module solar station I is available.

This is indicated by the module probe regeneration VII the changeover valve, in particular the three-way switching valve 49 in the regeneration cycle [thin short / long dashed lines], with the flow VL of the heat exchanger 2A in module probe regeneration VII to the first flow branch VL; AB-B of the regeneration cycle is opened with the path AB-B, so that the first regeneration circulation pump 51 solar heat for direct probe regeneration into the probe S of the heat pump system V-Z1 promotes.

A second flow branch VL; AB-A of the regeneration cycle is then closed. Output side of the probe S of the heat pump system V-Z1 the return RL is connected, allowing the second fluid to heat exchanger 2A can be traced in the circulation mode.

In module probe regeneration VII is in the return RL of the regeneration cycle a control valve 50 arranged, which between return RL and the common flow VL of the flow branches VL; AB-B and VL; AB-A is involved.

Upon release of the first flow branch VL; AB-B in the first function of the bifunctional heat exchanger 2A in which for direct regeneration of the probe S of the heat pump system V-Z1 is taken care of, serves the control valve 50 for temperature control of the second fluid and to avoid overheating of the probe S.

Upon release of the second flow branch VL; AB-A in the second function of the bifunctional heat exchanger 2A in which for generating a temperature in the primary heat pump cycle and for the indirect regeneration of the probe S of the heat pump system V-Z1 is taken care of, serves the control valve 50 to control the input temperature to the heat pump unit WP and the probe S and to prevent overheating of the heat pump unit WP and probe S.

About a temperature gauge, which in front of the three-way switching valve 49 in the common flow VL of the module probe regeneration VII is arranged, the flow temperature T _{SoleVL is} measured.

About a temperature measuring device, which in the return RL of the regeneration cycle in front of the control valve 50 is arranged, the respective return _temperature T _{SoleRL is} measured.

Depending on the flow temperature T _SoleVL is desired, and depending on the return temperature T _SoleRL is present, is admixed with the common flow VL from the probe S coming back second fluid having a lower temperature.

Incidentally, for control and control purposes, on the one hand, a further flow temperature T _Sole1 in the regeneration _cycle additionally directly in front of the probe S, behind the two flow _branches VL; AB-B / VL; AB-A and on the other hand, a further return _temperature T _{Sole2 is measured} directly behind the probe S.

As a result, overheating of the probe S or the heat pump unit WP and the probe S can always be avoided in any case, and irrespective of whether the regeneration cycle via the first flow branch VL; AB-B, 51 or the second flow branch VL; AB-A, 52 is driven.

As a result, not only is the overheating protection ensured, but the input-side temperatures in the heat pump unit WP and the probe S can be regulated.

According to 2 If there is no surplus of solar heat "solar off", then it is driven with the following circuit: control valve 50 Way AB-B open switching valve 49 Way AB-A open Second circulation pump 52 one Heat pump unit WP one Pump solar 3 out

In this circuit, via the second flow branch VL; AB-A on the heat pump unit WP and not on the bifunctional heat exchanger 2A driven, since the return side arranged control valve 50 in the way AB-A is closed.

According to 2 is then, if excess of solar heat "Solar on" is present and the heat pump unit WP is in operation, driven with the following circuit: Pump solar 3 one Second circulation pump 52 one Heat pump unit WP one switching valve 49 Way AB-A open control valve 50 in regular operation

In this circuit is via the bifunctional heat exchanger 2A and via the second flow branch VL; AB-A on the heat pump unit WP and indirectly on the probe S drove. The control valve 50 is in the way AB-A or AB-B in normal operation.

According to 2 If there is an excess of solar heat "solar on" and the heat pump unit WP is not in operation, then it is operated with the following circuit: Pump solar 3 one First circulation pump 51 one Heat pump unit WP out switching valve 49 Way AB-B open control valve 50 in regular operation

In this circuit is via the bifunctional heat exchanger 2A and via the first flow branch VL; AB-B moved directly to probe S and not to heat pump unit WP. The control valve 50 is in the way AB-A or AB-B in normal operation.

It becomes clear that through the control valve 50 the direct probe regeneration or the temperature swing and the indirect probe regeneration can be influenced in a controlled manner, which is why the invention is referred to as a "controlled probe regeneration".

An advantage of the bifunctional heat exchanger 2A is thus that by means of the new module probe regeneration VII the at least seasonal probe regeneration of the heat pump system V-Z1 takes place directly and in a controlled manner. By direct probe regeneration, the direct heat influence of the probe S is understood. The cycle of the heat pump system V-Z1 between heat pump unit WP and probe S is not affected, but the excess solar heat, is determined by the corresponding Integration of the first flow branches VL; AB-B, behind the heat pump unit WP and before the probe S, via the first regeneration circulation pump 51 in the flow branch VL; AB-B of the regeneration cycle of the module probe regeneration VII spent over the probe S in the soil and stored there at least partially, making the later in operation again heat pump system V-Z1 is increased in efficiency, since the temperature of the soil has been raised.

The second advantageous function of the heat exchanger 2A is that a temperature swing for the heat pump cycle of the heat pump system V-Z1 in the primary circuit (brine circuit) of the heat pump system V-Z1 which is filled with the second fluid, can be effected, since now via the second flow branch VL; AB-A of the regeneration cycle through the corresponding integration of the first flow branch VL; AB-B in front of the heat pump unit WP, solar heat from the module solar station I the primary circuit / brine circuit of the heat pump system V-Z1 is provided directly. As a result, a probe regeneration takes place indirectly, since the heat pump system V-Z1 operates at a higher temperature level, whereby the soil S surrounding soil is indirectly regenerated.

This makes it possible in an advantageous manner, even during operation of the heat pump unit WP of the heat pump system V-Z1 a utilization of solar heat from the module solar station I from a temperature level of about 3-4 K via brine (second fluid) or ice storage temperature as the primary input for the heat pump unit WP of the heat pump system V-Z1 to realize. This means that the collector K temperature of approx. -2 ° C is already above the module solar station I and over the heat exchanger 2A in module probe regeneration VII is a supply of heat via the second flow branch VL; AB-A of the regeneration cycle in the heat pump system V-Z1 as the module primary supply V associated heat pump system V-Z1 as an additional energy feeder possible.

A temperature swing of the heat pump system V-Z1 that is, the supply of heat in front of the heat pump unit WP and thus indirectly in the probe S of the heat pump system V-Z1 is always carried out when the heat pump unit WP is in operation and solar heat surplus via the "regeneration heat exchanger" 2A is provided from the module solar station.

For the temperature increase in the heat pump system V-Z1 becomes the three-way switching valve 49 module probe regeneration VII opened to the path AB-A, whereby the second flow branch VL; AB-A is opened, while the first flow branch VL; AB-B is closed.

The flow VL is thus not on the first regeneration circulation pump 51 in module probe regeneration VII switched, but on the second regeneration circulation pump 52 connected. As a result, the solar heat is now via the second flow branch VL; AB-A of the regeneration cycle in front of the heat pump unit WP of the heat pump system V-Z1 guided and via the return RL output side of the probe S back to the heat exchanger 2A in module probe regeneration VII led back, whereby an increase in the temperature of the second fluid is effected in the circulation operation. This also indirectly a probe regeneration of the probe S is achieved.

The between probe S and heat exchanger 2A arranged return RL is unchanged to return the medium to the heat exchanger 2A used. In order to prevent overheating of the probe S also in this second function, according to the invention, this is in the return of the regeneration cycle of the module probe regeneration VII arranged control valve 50 whose function has already been described, operated analogously. By this advantageous procedure is thus also the temperature of the heat pump system V-Z1 controlled influenced, which is why according to the invention of an efficiency-enhancing "controlled temperature deviation" with "indirect probe regeneration" is spoken.

Another advantage of the bifunctional heat exchanger VI . 2A is thus that by means of the new module probe regeneration VII a controlled temperature increase of the heat pump system VI-Z1 takes place, through which simultaneously an indirect probe regeneration is effected.

The dissipation of solar heat from the module solar station I for probe regeneration (first function) and / or the removal of solar heat from the module solar station I for the temperature lift (second function) also causes in the module solar station I the beneficial effect of avoiding stagnation (overheating of the collectors) in the module solar station I consists.

The avoidance of stagnation is governed by the control and regulation of the module probe regeneration VII with the integrated heat exchanger 2A controlled. Due to the now additional possibility of Heat dissipation via the module probe regeneration VII and the proposed heat pump system V-Z1 and the control valve 50 and the switching valve 49 in module probe regeneration VII can reduce heat consumption and thus avoid stagnation depending on the function of the module probe regeneration VII be controlled bifunctional, causing a standstill of the collector circuit of the module solar station I due to overheating of the collectors K is rather avoided than before.

An increase of the previous annual utilization rate expressed in average annual work figures 3.5-4 of the heat pump system V-Z1 is possible according to the invention by the direct temperature lift but also by the indirect or direct probe regeneration. Increasing the temperature of the brine in the regeneration cycle / primary circuit of the heat pump system V-Z1 leads in the described coupling with the module solar station I via the module probe regeneration VII and the heat exchanger disposed therein 2A Very high annual work figures between 4 and 7.

Finally, according to 2 proposed to integrate a further energy feeder in the thermal energy supply system. In the secondary side of the heat pump system V-Z1 In addition, there will be an exhaust air heat pump system V-Z2 [shown as thin short and long dashed lines] integrated. As a result, there is the option of heat energy from an exhaust air heat pump of an exhaust air heat pump system V-Z2 in the secondary side of the heat pump system V-Z1 feed, whereby a further increase in efficiency of the entire system of the thermal energy supply system and in particular of the heat pump system V-Z1 is effected.

LIST OF REFERENCE NUMBERS

I

Module solar station

1

Heat exchanger Solar TWE

2

Heat exchanger solar buffer

3

Pump solar

4

Changeover valve collector

5

Volume counter solar circuit

6

Pump buffer

7

Connection of expansion tank

8th

Flow restrictor discharge circuit

9

Volume flow limiter buffer circuit

10

Changeover valve buffer

K

Collector field too I

PSP

Layer cache too I

II

Module TWE / cold water connection

11

Control valve hot water

12

Heat exchanger TWE preheater

13

Heat exchanger TWE reheater

14

Pump circulation

15

Changeover valve cold water

16

Volume flow limiter storage charge

17

Charging valve TWE storage

18

Flow meter cold water

19

Changeover valve TWE-Solar

20

Volume flow limiter circulation

21

Safety and temperature limiter TWE

22

Pump TWE

23

Flow meter for drinking water

SLS

Peak load storage

III

Module Solar Heating

24

Control valve heating circuit solar

25

Heat exchanger solar heater

IV

Module heating circuit

26

Control valve heating circuit 1

27

Pump heating circuit

28

Differential pressure measurement

29

Volume meter heating circuit

V

Module primary care

40

Shut-off

41

Filling and draining fitting

42

thermometer

43

manometer

44

strainer

45

check valve

46

safety valve

47

safety valve

48

flap valve

V-Z1

heat pump system

S

probe

WP

heat pump unit

V-Z2

Exhaust air heat pump system

VI

Module control

VII

Module probe regeneration

2A

Heat exchanger

49

switching valve

49Ab

Way of changeover valve

49B

Way of changeover valve

49A

Way of changeover valve

50

control valve

50AB

Way of the control valve

50B

Way of the control valve

50A

Way of the control valve

51

first regeneration circulation pump

52

second regeneration circulation pump

T _SoleVL

flow temperature

T _brine1

Temperature before probe

VL

leader

RL

returns

T _SoleRL

Return temperature

T _brine2

Temperature after probe

VL; AB-B

first flow branch of the regeneration cycle

VL; AB-A

second flow branch of the regeneration cycle

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008036712 A1 [0012]

Claims (10)

Heat energy supply system, which heat for at least one consumer, within a drinking water heating ( II ) with a drinking water circuit and / or at least one heating circuit ( IV ), the at least one module solar station ( I ) for obtaining solar heat in a first fluid of a collector circuit and a heat pump system ( V-Z1 ) for generating geothermal heat in a second fluid of a primary heat pump cycle, characterized in that • the collector circuit of the module solar station ( I ) and a regeneration cycle of a module probe regeneration ( VII ) via a module probe regeneration ( VII ) arranged bifunctional heat exchanger ( 2A ), wherein the module probe regeneration ( VII ) has a flow (VL) with a first and second flow branch (VL, AB-B / VL, AB-A) and a return (RL), which are involved in the primary heat pump cycle, • wherein the first flow branch (VL, AB-B) in front of a heat pump unit (WP) of the heat pump system (WP) V-Z1 ) and the second flow branch (VL, AB-A) downstream of the heat pump unit (WP) in front of a geothermal device (S) of the heat pump system ( V-Z1 ) are coupled into the primary heat pump cycle and the return (RL) on the output side of the geothermal receiving device (S) of the heat pump system ( V-Z1 ), so that the second fluid of the primary heat pump cycle via the module probe regeneration ( VII ), wherein by releasing the first flow branch (VL, AB-B) in a first function of the bifunctional heat exchanger ( 2A ) a direct regeneration of the geothermal receiving device (S) of the heat pump system ( V-Z1 ) and by releasing the second flow branch (VL, AB-A) in a second function of the bifunctional heat exchanger ( 2A ) the generation of a temperature elevation in the primary heat pump cycle and an indirect regeneration of the geothermal heat sink device (S) of the heat pump system ( V-Z1 ) is feasible. Heat energy supply system according to claim 1, characterized in that the module probe regeneration ( VII ) at least one reversing valve ( 49 ) in the flow (VL) of the heat exchanger ( 2A ), which in the first function of the bifunctional heat exchanger ( 2A ) for the direct regeneration of the geothermal heat absorbing device (S) of the heat pump system ( V-Z1 ) the first flow branch (VL, AB-B) with a first regeneration circulation pump (FIG. 51 ) and in the second function of the bifunctional heat exchanger ( 2A ) for generating the temperature stroke in the primary heat pump cycle and for the indirect regeneration of the geothermal receiving means (S) of the heat pump system ( V-Z1 ) releases the second flow branch (VL, AB-A), in which a second regeneration circulation pump ( 52 ) is arranged. Heat energy supply system according to claim 1, characterized in that in the return (RL) of the regeneration cycle of the module probe regeneration ( VII ) a control valve ( 50 ), which is connected to the flow (VL) of the regeneration _circuit and to avoid overheating of the geothermal receiving device (S) the flow temperature (T _SoleVL ) in the flow (VL) of the subsequent flow _branches (VL; AB-B / VL; AB-A). Heat energy supply system according to claim 1, characterized in that the bifunctional heat exchanger ( 2A ) in module probe regeneration ( VII ) in a cascade of at least two heat exchangers connected in series ( 1 . 25 . 2A . 2 ) is arranged. Heat energy supply system according to claim 1 or 4, characterized in that the bifunctional heat exchanger ( 2A ) in module probe regeneration ( VII ) behind at least one heat exchanger ( 1 . 25 ) and in front of another heat exchanger ( 2 ) is arranged. Heat energy supply system according to claim 4, characterized in that the heat exchanger ( 1 ) in the module solar station I arranged and with a module DHW heating (TWE) / cold water connection ( II ), wherein the heat exchanger ( 1 ) for a feed-in of heat into the module DHW heating (TWE) / cold water connection ( II ). Heat energy supply system according to claim 4, characterized in that the heat exchanger ( 25 ) in a module solar heating ( III ), which is provided with a module heating circuit ( IV ) is coupled, to which a heating circuit can be connected, the heat exchanger ( 25 ) provides for a feed of heat into the heating circuit. Heat energy supply system according to claim 3, characterized in that the heat exchanger ( 2 ) in the module solar station ( I ) and provides input / output of heat to / from a layer buffer memory (PSP). Heat energy supply system according to claim 1, characterized in that to provide the heat next to the module solar station ( I ) and the heat pump system ( V-Z1 ) a module primary supply ( V ) in which a conventional heat generator is selectively connected on the basis (district heating, gas, oil or biomass). Heat energy supply system according to claim 1, characterized in that to provide the heat next to the module solar station ( I ) and the heat pump system ( V-Z1 ) an exhaust air heat pump system ( V-Z2 ), which is integrated into the secondary heat pump cycle.

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