DE29710248U1 - Device for recording heat consumption and for regulating the heating power of a single radiator for room temperature control - Google Patents
Device for recording heat consumption and for regulating the heating power of a single radiator for room temperature controlInfo
- Publication number
- DE29710248U1 DE29710248U1 DE29710248U DE29710248U DE29710248U1 DE 29710248 U1 DE29710248 U1 DE 29710248U1 DE 29710248 U DE29710248 U DE 29710248U DE 29710248 U DE29710248 U DE 29710248U DE 29710248 U1 DE29710248 U1 DE 29710248U1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- temperature sensor
- room air
- central unit
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 title claims description 13
- 230000001105 regulatory effect Effects 0.000 title description 2
- 238000005476 soldering Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
- G01K17/06—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device
- G01K17/08—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature
- G01K17/10—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature between an inlet and an outlet point, combined with measurement of rate of flow of the medium if such, by integration during a certain time-interval
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Description
PATENTANWALT DR. STARK · MOEJiSERiSTf^CS^E &Igr;4£&iacgr; -.D-47803 KREFELDPATENT ATTORNEY DR. STARK · MOEJiSERiSTf^CS^E &Igr;4£&iacgr; -.D-47803 KREFELD
Anwaltsakte: 97 042 / 4 thAttorney file: 97 042 / 4 th
Raab Karcher Energieservice GmbH, Rudolf-v.-Bennigsen-Foerder-Platz 3, 45131 EssenRaab Karcher Energieservice GmbH, Rudolf-v.-Bennigsen-Foerder-Platz 3, 45131 Essen
Vorrichtung zur Wärmeverbrauchserfassung und zur Regelung der Heizleistung eines einzelnen Heizkörpers für die RaumtemperaturregelungDevice for measuring heat consumption and for controlling the heating output of an individual radiator for room temperature control
Die Erfindung betrifft eine Vorrichtung zur Wärmeverbrauchserfassung und zur Regelung der Heizleistung eines einzelnen Heizkörpers für die Raumtemperaturregelung.The invention relates to a device for measuring heat consumption and for controlling the heating output of an individual radiator for room temperature control.
Bei einer bekannten Vorrichtung (DE 35 29 257) ist eine Zentraleinheit über zugeordnete Leitungen mit einer Vielzahl von Heizkörpern bzw. deren Sensoren verbunden. Die Raumlufttemperatur wird wie üblich durch Steuerung des Ventils jedes Heizkörpers nach Maßgabe der vom Raumlufttemperatursensor abgegebenen Meßwerte geregelt. Der Wärmeverbrauch jedes Heizkörpers bzw. die von jedem Heizkörper abgegebene Wärmeleistung wird aus den Meßwerten der zugehörigen Sensoren nach bekannten Beziehungen bestimmt. Dabei können in den Rechner der Zentraleinheit an sich bekannte Regelalgorithmen oder auch Zeitprogramme eingegeben werden. Der Verkabelungsaufwand einerseits für die Energieversorgung der Sensoren und andererseits für die Weiterleitung der von den Sensoren abgegebenen Meßwerte ist allerdings erheblich.In a known device (DE 35 29 257), a central unit is connected to a large number of radiators or their sensors via assigned lines. The room air temperature is regulated as usual by controlling the valve of each radiator in accordance with the measured values provided by the room air temperature sensor. The heat consumption of each radiator or the heat output of each radiator is determined from the measured values of the associated sensors according to known relationships. Known control algorithms or time programs can be entered into the computer of the central unit. The cabling effort on the one hand for the energy supply to the sensors and on the other hand for the forwarding of the measured values provided by the sensors is, however, considerable.
PATENTANWALT DR. STARK · IVUJerSER STÜs'sB iwj · ;D-47803 KREFELDPATENT ATTORNEY DR. STARK · IVUJerSER STÜs'sB iwj · ;D-47803 KREFELD
Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, bei der der Verkabelungsaufwand deutlich reduziert ist.The object of the invention is to create a device in which the cabling effort is significantly reduced.
Diese Aufgabe wird gelöst durch eine Vorrichtung zur Wärmeverbrauchserfassung und zur Regelung der Heizleistung eines einzelnen Heizkörpers für die Raumtemperaturregelung, mit einem Ventil und einer Ventilbetätigungseinrichtung, wobei zur Heizkostenverteilung bzw. Wärmeverbrauchserfassung ein Vorlauftemperatursensor, ein Rücklauftemperatursensor und gegebenenfalls ein in der Vorlaufleitung angeordneter, die Druckdifferenz um das Ventil messender Differenzdrucksensor sowie eine ein Rechenwerk enthaltende Zentraleinheit vorgesehen ist, zur Regelung der Heizleistung zusätzlich ein Raumlufttemperatursensor angeordnet ist und die Zentraleinheit mit sämtlichen Sensoren und der Ventilbetätigungseinrichtung verbunden ist. Hierdurch ist für jeden Heizkörper eine separate Regelungs-/Erfassungsvorrichtung vorhanden, die nahe den Sensoren angeordnet sein kann, so daß keine lange und aufwendige Verkabelung erforderlich ist. Auch sind keine Verbindungen über längere Strecken zu an anderen Heizkörpern angeordneten Sensoren erforderlich und der jeweilige Raumlufttemperatursensor kann sowohl für die Wärmeverbrauchserfassung als auch für die Regelung der Heizleistung verwendet werden, so daß eine Reduzierung der erforderlichen Bauteile erzielt wird.This task is solved by a device for heat consumption recording and for controlling the heating output of an individual radiator for room temperature control, with a valve and a valve actuating device, whereby a flow temperature sensor, a return temperature sensor and, if necessary, a differential pressure sensor arranged in the flow line that measures the pressure difference around the valve and a central unit containing a calculator are provided for heating cost distribution or heat consumption recording, a room air temperature sensor is also arranged to control the heating output and the central unit is connected to all sensors and the valve actuating device. This means that there is a separate control/detection device for each radiator, which can be arranged close to the sensors so that no long and complex cabling is required. There are also no connections over long distances to sensors arranged on other radiators and the respective room air temperature sensor can be used both for heat consumption recording and for controlling the heating output, so that a reduction in the number of required components is achieved.
Vorteilhafterweise kann zur Energieversorgung ein thermoelektrisches Element, insbesondere eine Anordnung mehrerer thermoelektrischer Elemente vorgesehen sein, dessen (deren) warme Lötstelle(n) auf Vorlauftemperatur und dessen(deren) kalte Lötstelle(n) auf Raumlufttemperatur liegt(liegen), so daß die Vorrichtung netzunabhängig istAdvantageously, a thermoelectric element, in particular an arrangement of several thermoelectric elements, can be provided for the energy supply, the warm soldering point(s) of which is at the flow temperature and the cold soldering point(s) of which is at the room air temperature, so that the device is independent of the mains
PATENTANWALT DR. STARK · MOER^ER, STR|S3e#14ff · &Oacgr;;47803 KREFELDPATENT ATTORNEY DR. STARK · MOER^ER, STR|S3e # 14ff · &Oacgr;;47803 KREFELD
und auch keine in bestimmten Zeitintervallen auszuwechselnde Stromquelle wie z. B. eine Batterie enthält. Insbesondere kann(können) die warme(n) Lötstelle(n) im Bereich der Vorlaufleitung angeordnet sein, während die kalte(n) Lötstelle(n) der Raumluft ausgesetzt ist(sind) oder vom Raumlufttemperatursensor gebildet ist(sind). Es versteht sich, daß das thermoelektrische Element bzw. die Anordnung mehrerer thermoelektrischer Elemente hinsichtlich seiner (ihrer) Leistungsfähigkeit so dimensioniert ist(sind), daß es (sie) die für den Betrieb der Sensoren und der Zentraleinheit erforderliche Energie liefert(liefern). Damit kann die Vorrichtung auch nachträglich an jedem Heizkörper angeordnet werden. Wenn die kalte(n) Lötstelle(n) auf Raumtemperatur liegt(liegen) oder vom Raumlufttemperatursensor selbst gebildet wird(werden), ist besonders vorteilhaft, daß Manipulationsversuche zu einem erhöhten Meßwert für die Raumtemperaturen führen, so daß das Ventil geschlossen wird. Der Bezug von Wärmeenergie ohne die gleichzeitige Erfassung wird damit wirksam verhindert.and also does not contain a power source that has to be replaced at certain intervals, such as a battery. In particular, the warm soldering point(s) can be arranged in the area of the flow line, while the cold soldering point(s) is/are exposed to the room air or is/are formed by the room air temperature sensor. It goes without saying that the thermoelectric element or the arrangement of several thermoelectric elements is/are dimensioned in terms of its/their performance so that it/they supply the energy required for the operation of the sensors and the central unit. This means that the device can also be subsequently installed on any radiator. If the cold soldering point(s) is/are at room temperature or is/are formed by the room air temperature sensor itself, it is particularly advantageous that attempts at manipulation lead to an increased measured value for the room temperatures, so that the valve is closed. The use of heat energy without simultaneous detection is thus effectively prevented.
Aufwendige Verkabelungen zwischen den Sensoren und der Zentraleinheit lassen sich dann vermeiden, wenn zumindest einer der Temperatursensoren als passiv abfragbar Oberflächenwellensensor ausgebildet ist und die Zentraleinheit eine zugeordnete Sende-/Empfangseinrichtung aufweist. Oberflächenwellensensoren sind an sich bekannt. Bei Abgabe eines impulsförmigen Signals des Senders wird der Oberflächenwellensensor zu einem Antwortsignal angeregt, das durch den Empfänger der Zentraleinheit empfangen wird. Aus dem Antwortsignal kann der jeweiligen Meßwert des Sensors bestimmt werden.Complex cabling between the sensors and the central unit can be avoided if at least one of the temperature sensors is designed as a passively interrogated surface wave sensor and the central unit has an associated transmitting/receiving device. Surface wave sensors are known per se. When a pulse-shaped signal is emitted by the transmitter, the surface wave sensor is stimulated to produce a response signal, which is received by the receiver of the central unit. The respective measured value of the sensor can be determined from the response signal.
Vorteilhafterweise ist die Sende-/Empfangseinrichtung auch zur Datenübertragung mit einer übergeordneten Stelle ein-Advantageously, the transmitting/receiving device is also for data transmission with a higher-level location.
PATENTANWALT DR. STARK · MOER^ER.eYRÄSS^Utt ·#·&Kgr;4&idigr;803 KREFELDPATENT ATTORNEY DR. STARK · MOER^ER.eYRÄSS^Utt · # ·&Kgr;4&idigr;803 KREFELD
gerichtet, so daß der Wärmeverbrauch des jeweiligen Heizkörpers ständig oder intermittierend von der übergeordneten Stelle abgefragt und als Grundlage für die Berechnung der jeweiligen Heizkosten verwendet werden kann.so that the heat consumption of the respective radiator can be queried continuously or intermittently by the higher-level authority and used as a basis for calculating the respective heating costs.
Bei einem bevorzugten Ausführungsbeispiel der Erfindung kann zur Ermittlung des Durchflusses durch den Heizkörper ein Sensorelement den Ventilhub des Ventils erfassen.In a preferred embodiment of the invention, a sensor element can detect the valve stroke of the valve to determine the flow through the radiator.
Im folgenden wird ein in der Zeichnung dargestelltes Ausführungsbeispiel der Erfindung erläutert. Die einzige Figur zeigt schematisch einen Heizkörper 1 mit einer Vorrichtung zur Regelung der Heizleistung eines Heizkörpers für die Raumtemperaturregelung und zur Wärmeverbrauchserfassung. An embodiment of the invention shown in the drawing is explained below. The single figure shows a schematic of a radiator 1 with a device for controlling the heating output of a radiator for room temperature control and for recording heat consumption.
Zu dem in der Zeichnung dargestellten Heizkörper 1 führen eine Vorlauf leitung 2 und eine Rücklauf leitung 3 . In der Vorlaufleitung 2 befindet sich ein Ventil 4 mit zugeordneter Ventilbetätigungseinrichtung 5. Die Ventilbetätigungseinrichtung 5 ist bei der dargestellten Ausführung ein motorischer Antrieb. Ein Differenzdrucksensor 6 erfaßt den Differenzdruck vor und nach dem Ventil 4.A supply line 2 and a return line 3 lead to the radiator 1 shown in the drawing. In the supply line 2 there is a valve 4 with an associated valve actuation device 5. In the version shown, the valve actuation device 5 is a motor drive. A differential pressure sensor 6 detects the differential pressure before and after the valve 4.
Der Vorlaufleitung 2 ist ein Vorlauftemperatursensor 7 und der Rücklaufleitung 3 ein Rücklauftemperatursensor 8 zugeordnet. Ferner ist ein Raumlufttemperatursensor 9 vorgesehen. A flow temperature sensor 7 is assigned to the flow line 2 and a return temperature sensor 8 is assigned to the return line 3. A room air temperature sensor 9 is also provided.
Der Vorlauftemperatursensor 7 und der Raumlufttemperatursensor 9 sind bei der dargestellten Ausführung über Leitungen mit einer Zentraleinheit 10 verbunden, zu der auch ein nicht dargestelltes Rechenwerk gehört. In der PraxisIn the version shown, the flow temperature sensor 7 and the room air temperature sensor 9 are connected via cables to a central unit 10, which also includes a calculator (not shown). In practice
PATENTANWALT DR. STARK · M0ER$EKS"TRfS5E#ifta :*K-4?803 KREFELDPATENT ATTORNEY DR. STARK · M0ER$EKS"TRfS5E # ifta : *K-4?803 KREFELD
sind der Vorlauftemperatursensor 7 und der Raumlufttemperatursensor 9 zu einer baulichen Einheit vereinigt.the flow temperature sensor 7 and the room air temperature sensor 9 are combined to form a structural unit.
Zur Energieversorgung der Zentraleinheit 10, der Ventilbetätigungseinrichtung 5 und der verschiedenen Sensoren 6, 7, 8, 9 dient ein thermoelektrisches Element 11, dessen warme Lötstelle auf Vorlauftemperatur liegt, insbesondere vom Vorlauftemperatursensor 7 gebildet ist, und dessen kalte Lötstelle auf Raumlufttemperatur liegt, insbesondere vom Raumlufttemperatursensor 9 gebildet ist. Das thermoelektrische Element 11 ist so dimensioniert, daß seine abgegebene elektrische Energie zum Betrieb der Vorrichtung ausreicht.A thermoelectric element 11 is used to supply energy to the central unit 10, the valve actuation device 5 and the various sensors 6, 7, 8, 9, the warm soldering point of which is at the flow temperature, in particular formed by the flow temperature sensor 7, and the cold soldering point of which is at the room air temperature, in particular formed by the room air temperature sensor 9. The thermoelectric element 11 is dimensioned such that the electrical energy it emits is sufficient to operate the device.
Damit aufwendige Leitungsverbindungen zwischen dem Rücklauftemperatursensor 8 und gegebenenfalls dem Differenzdrucksensor 6 einerseits und der Zentraleinheit 10 andererseits vermieden werden, weisen bei der dargestellten Ausführung der Rücklauftemperatursensor 8 und gegebenenfalls auch der Differenzdrucksensor 6 nicht dargestellte, passiv abfragbare Oberflachenwellensensoren auf und die Zentraleinheit ist mit einer zugeordneten Sende-/Empfangseinrichtung ausgerüstet. Bei Abgabe eines Signals durch die Sendeeinrichtung wird der jeweilige Oberflächenwellensensor zu einem Antwortsignal angeregt, das von der Empfangseinrichtung der Zentraleinheit 10 aufgenommen wird und dann vom Rechenwerk der Zentraleinheit 10 verarbeitet werden kann.In order to avoid complex cable connections between the return temperature sensor 8 and, if applicable, the differential pressure sensor 6 on the one hand and the central unit 10 on the other, in the embodiment shown, the return temperature sensor 8 and, if applicable, also the differential pressure sensor 6 have passively interrogated surface wave sensors (not shown) and the central unit is equipped with an associated transmitting/receiving device. When a signal is emitted by the transmitting device, the respective surface wave sensor is stimulated to send a response signal, which is received by the receiving device of the central unit 10 and can then be processed by the arithmetic unit of the central unit 10.
Die nicht dargestellte Sende-/Empfangseinrichtung der Zentraleinheit 10 ist so ausgelegt, daß sie auch zur Datenübertragung mit einer übergeordneten Stelle eingesetzt werden kann, um dieser übergeordneten Stelle den Wärmeverbrauch des jeweiligen Heizkörpers 1 betreffende Daten zuThe transmitting/receiving device of the central unit 10 (not shown) is designed in such a way that it can also be used for data transmission with a higher-level location in order to provide this higher-level location with data relating to the heat consumption of the respective radiator 1.
PATENTANWALT DR. STARK · MOER$EFl 6TR|sse"i«0 -'»47803 KREFELDPATENT ATTORNEY DR. STARK · MOER$EFl 6TR|sse"i«0 -'»47803 KREFELD
übermitteln, aus denen dann die jeweiligen Heizkosten ermittelt werden.from which the respective heating costs are then determined.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29710248U DE29710248U1 (en) | 1997-06-12 | 1997-06-12 | Device for recording heat consumption and for regulating the heating power of a single radiator for room temperature control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29710248U DE29710248U1 (en) | 1997-06-12 | 1997-06-12 | Device for recording heat consumption and for regulating the heating power of a single radiator for room temperature control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29710248U1 true DE29710248U1 (en) | 1998-10-15 |
Family
ID=8041524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29710248U Expired - Lifetime DE29710248U1 (en) | 1997-06-12 | 1997-06-12 | Device for recording heat consumption and for regulating the heating power of a single radiator for room temperature control |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29710248U1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20009158U1 (en) | 2000-05-20 | 2000-08-24 | Techem Service AG & Co. KG, 60528 Frankfurt | Device for recording the heat output of a radiator and regulating the room temperature |
| EP1235131A2 (en) | 2001-02-23 | 2002-08-28 | Techem Service Aktiengesellschaft & Co. KG | Room temperature control |
| DE102004044106B3 (en) * | 2004-09-13 | 2006-04-27 | Techem Energy Services Gmbh & Co. Kg | Heat meter for measuring temperature of heating element in an area has analyzing device from which heat controller derives variable of state for supply of heating fluid |
| DE102010033428A1 (en) * | 2010-08-04 | 2012-02-09 | Micropelt Gmbh | Controller for actuator, such as radiator valve of heating controller, has voltage supply with energy converter for converting ambient energy into electrical energy |
| DE102014200823B4 (en) * | 2013-01-18 | 2015-08-27 | Topas Gmbh | Device for generating an adjustable differential pressure of a compressible medium when flowing through a fluid guide |
| EP3217157A1 (en) * | 2016-03-08 | 2017-09-13 | Techem Energy Services GmbH | Heat cost allocator and method for measuring the heat loss of a radiator |
| EP2557366A3 (en) * | 2011-08-11 | 2017-11-08 | Vaillant GmbH | Building technology assembly for heating and/or cooling |
| EP3282337B1 (en) | 2016-08-10 | 2020-01-15 | Danfoss A/S | Heat exchanger system and method for detecting a relocation of a temperature sensor in a heat exchanger system |
| DE102018009322A1 (en) * | 2018-11-28 | 2020-05-28 | Diehl Metering Gmbh | Heat meter device |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1158250A2 (en) | 2000-05-20 | 2001-11-28 | Techem Service Aktiengesellschaft & Co. KG | Apparatus for detecting the heat output of a radiator and regulating the room temperature |
| EP1158250A3 (en) * | 2000-05-20 | 2003-04-09 | Techem Service Aktiengesellschaft & Co. KG | Apparatus for detecting the heat output of a radiator and regulating the room temperature |
| DE20009158U1 (en) | 2000-05-20 | 2000-08-24 | Techem Service AG & Co. KG, 60528 Frankfurt | Device for recording the heat output of a radiator and regulating the room temperature |
| EP1235131A2 (en) | 2001-02-23 | 2002-08-28 | Techem Service Aktiengesellschaft & Co. KG | Room temperature control |
| DE10108852C1 (en) * | 2001-02-23 | 2002-08-29 | Techem Service Ag | Room temperature control |
| DE102004044106B3 (en) * | 2004-09-13 | 2006-04-27 | Techem Energy Services Gmbh & Co. Kg | Heat meter for measuring temperature of heating element in an area has analyzing device from which heat controller derives variable of state for supply of heating fluid |
| DE102010033428A1 (en) * | 2010-08-04 | 2012-02-09 | Micropelt Gmbh | Controller for actuator, such as radiator valve of heating controller, has voltage supply with energy converter for converting ambient energy into electrical energy |
| DE102010033428A8 (en) * | 2010-08-04 | 2012-05-10 | Micropelt Gmbh | Control for an actuator |
| DE102010033428B4 (en) | 2010-08-04 | 2024-04-18 | Micropelt Gmbh | Radiator valve with control for one actuator and heating control |
| EP2557366A3 (en) * | 2011-08-11 | 2017-11-08 | Vaillant GmbH | Building technology assembly for heating and/or cooling |
| DE102014200823B4 (en) * | 2013-01-18 | 2015-08-27 | Topas Gmbh | Device for generating an adjustable differential pressure of a compressible medium when flowing through a fluid guide |
| DE102016104225A1 (en) * | 2016-03-08 | 2017-09-14 | Techem Energy Services Gmbh | Heat cost allocator and method for detecting the amount of heat emitted by a radiator |
| EP3217157A1 (en) * | 2016-03-08 | 2017-09-13 | Techem Energy Services GmbH | Heat cost allocator and method for measuring the heat loss of a radiator |
| EP3282337B1 (en) | 2016-08-10 | 2020-01-15 | Danfoss A/S | Heat exchanger system and method for detecting a relocation of a temperature sensor in a heat exchanger system |
| EP3282337B2 (en) † | 2016-08-10 | 2023-05-24 | Danfoss A/S | Heat exchanger system and method for detecting a relocation of a temperature sensor in a heat exchanger system |
| DE102018009322A1 (en) * | 2018-11-28 | 2020-05-28 | Diehl Metering Gmbh | Heat meter device |
| DE102018009322B4 (en) | 2018-11-28 | 2020-07-02 | Diehl Metering Gmbh | Heat meter device |
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