EP1566618B1 - Monitoring system for a district heating system - Google Patents

Monitoring system for a district heating system Download PDF

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Publication number
EP1566618B1
EP1566618B1 EP05001110A EP05001110A EP1566618B1 EP 1566618 B1 EP1566618 B1 EP 1566618B1 EP 05001110 A EP05001110 A EP 05001110A EP 05001110 A EP05001110 A EP 05001110A EP 1566618 B1 EP1566618 B1 EP 1566618B1
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EP
European Patent Office
Prior art keywords
sensor
district heating
electronics
monitoring system
heating system
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EP05001110A
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German (de)
French (fr)
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EP1566618A1 (en
Inventor
Bernd Brandes
Fritz Kamkalow
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Brandes Bernd
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means

Definitions

  • the invention relates to a monitoring system for a district heating distribution network, which is provided with a plurality of control electronics, which are controlled and interrogated by a central unit at the connection points of the district heating distribution network, with a plurality of sensor electronics, the measurement wires of measuring wires inserted into the insulation material of the pipes of the district heating distribution network and / or detect measuring elements.
  • connection points To transmit the heat energy between a district heating distribution network and the heating circuit in each building home stations (connection points) are used, in which the energy exchange between the heating circuit and the district heating circuit via heat exchangers.
  • the control of this process via district heating which is provided with a control electronics.
  • This control electronics can be controlled and queried by a central unit.
  • These regulators have different signal inputs, which can be used to measure different measurands, such as temperatures, and signal outputs, via which pumps and valves are controlled and output via the data to the central unit.
  • the control panel is usually connected to a process visualization, which graphically represents the operating status of the individual controllers and the house stations connected to them.
  • the pipes of a district heating distribution network are regularly provided with measuring leads and / or measuring elements whose measured values are detected by a sensor electronics (see eg DE-3930530).
  • the measurement wires are interconnected to larger monitoring sections and from monitored a continuous monitoring device.
  • Larger networks use centralized systems consisting of a centralized unit and locally distributed meters, each of which monitors specific monitoring sections for moisture and locates the site of damage.
  • the measured value output, the message output as well as the parameterization of the individual devices are carried out from a central device. These central devices are usually equipped with display devices for the graphical representation of the system status and the incoming messages.
  • the invention has for its object to provide a monitoring system for a provided with a controller electronic district heating distribution network, which allows for the absence of a separate transmission system for the measured values of the sensor electronics a simple, accurate localization of a damaged site.
  • each of the sensor electronics for determining the measured values detected by them is set to an electronic controller associated with one of the connection points, and the measuring wires and / or measuring elements extend from the sensor electronics connected thereto to a connection point adjacent to the respective connection point.
  • the measured values transmitted by the sensor electronics to the associated control electronics are preferably the insulation resistance of the thermal insulation, other electrical parameters influenced by moisture in the thermal insulation (voltages, currents in amplitude and / or signal form), or the resistance value of the measuring arm.
  • the measuring elements may be formed as a measuring loop, which is formed by a sensor wire and a scrubluminatader.
  • the district heating distribution network consists of tubes 18, which leads to connection points 10. At the connection points are arranged regulators, which are provided with pumps and / or valves, which are controlled by a controller electronics 14. This controller electronics is controlled and queried by a central unit 12.
  • the monitoring system furthermore has a plurality of sensor electronics 16 which detect measured values of the sensors 20 which consist of measuring leads and / or measuring elements introduced into the insulating material of the tubes 18 of the district heating distribution network 20.
  • Each of the sensor electronics 16 is set up to transmit the measured values acquired by them to the controller electronics 14 associated with the connection point.
  • the sensors 20 extend from the sensor electronics 16 connected to them to a connection point 10 adjacent to the respective connection point 10.
  • the proposed training can be carried out with very simple devices complete monitoring even complex district heating networks.
  • the infrastructure which is already available for the control system (ie for the controllers) is used:
  • a query of the measured values of the sensor electronics that is, e.g. a query of the insulation resistance of the pipe section between the requested controller electronics and the adjacent connection point. Since in each case only relatively short sections are queried, it is also possible to keep a differentiated statement about the network status, for example, to detect multiple errors.
  • a further advantage is that with extensions or densifications of the district heating distribution network increasingly differentiated statement is possible, since the junction of each queried controller electronics and the adjacent junction are known, the respectively queried sensor loop is known.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Alarm Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Selective Calling Equipment (AREA)

Abstract

Monitoring system for a district heating distribution network comprises a multiplicity of electronic control units (14) and sensor electronic units (16) at each of the connection points (10) of the distribution network. The sensors are positioned in the pipe insulation of the network and are connected via a sensor wire and return lead that form a sensor loop (20). The sensors are directly connected to the control units and the sensor loops run directly to the adjoining connection point.

Description

Die Erfindung betrifft ein Überwachungssystem für ein Fernwärmeverteilnetz, das mit einer Mehrzahl von an den Anschlussstellen des Fernwärmeverteilnetzes angeordneten, von einer Zentraleinheit gesteuerten und abgefragten Reglerelektroniken versehen ist, mit einer Mehrzahl von Sensorelektroniken, die Messwerte von in das Isolationsmaterial der Rohre des Fernwärmeverteilnetzes eingebrachten, Messadern und/oder Messelementen erfassen.The invention relates to a monitoring system for a district heating distribution network, which is provided with a plurality of control electronics, which are controlled and interrogated by a central unit at the connection points of the district heating distribution network, with a plurality of sensor electronics, the measurement wires of measuring wires inserted into the insulation material of the pipes of the district heating distribution network and / or detect measuring elements.

Zur Übertragung der Wärmeenergie zwischen einem Fernwärmeverteilnetz und dem Heizkreislauf in den einzelnen Gebäuden werden Hausstationen (Anschlussstellen) verwendet, in denen der Energieaustausch zwischen dem Heizkreislauf und dem Fernwärmekreislauf über Wärmetauscher erfolgt. Die Steuerung dieses Prozesses erfolgt über Fernheizregler, die mit einer Regelelektronik versehen ist. Diese Regelelektronik kann von einer Zentraleinheit gesteuert und abgefragt werden.To transmit the heat energy between a district heating distribution network and the heating circuit in each building home stations (connection points) are used, in which the energy exchange between the heating circuit and the district heating circuit via heat exchangers. The control of this process via district heating, which is provided with a control electronics. This control electronics can be controlled and queried by a central unit.

Diese Regler verfügen über verschiedene Signaleingänge, über die verschiedene Messgrößen, beispielsweise Temperaturen erfasst werden können und über Signalausgänge, über die Pumpen und Ventile angesteuert werden und über die Daten an die Zentraleinheit ausgegeben werden.These regulators have different signal inputs, which can be used to measure different measurands, such as temperatures, and signal outputs, via which pumps and valves are controlled and output via the data to the central unit.

Die Zentrale ist zumeist mit einer Prozessvisualisierung verbunden, die in graphischer Form den Betriebszustand der einzelnen Regler und der daran angeschlossenen Hausstationen darstellt.The control panel is usually connected to a process visualization, which graphically represents the operating status of the individual controllers and the house stations connected to them.

Die Rohre eines Fernwärmeverteilnetzes sind regelmäßig mit Messadern und/oder Messelementen versehen, deren Messwerte von einer Sensorelektronik erfasst werden (siehe z.B. DE-3930530). Dabei werden die Messadern zu größeren Überwachungsabschnitten zusammengeschaltet und von einem Dauerüberwachungsgerät überwacht. Bei größeren Netzen werden zentralisierte Systeme verwendet, die aus einem Zentralgerät und örtlich verteilten Messgeräten bestehen, die jeweils bestimmte Überwachungsabschnitte auf Feuchtigkeit überwachen und eine Lokalisierung der Schadensstelle ermöglichen. Die Messwertausgabe, die Meldeausgabe sowie die Parametrierung der Einzelgeräte erfolgt von einem Zentralgerät aus. Auch diese Zentralgeräte sind meist mit Anzeigeeinrichtungen zur graphischen Darstellung des Anlagestatus und der auflaufenden Meldungen ausgerüstet.The pipes of a district heating distribution network are regularly provided with measuring leads and / or measuring elements whose measured values are detected by a sensor electronics (see eg DE-3930530). The measurement wires are interconnected to larger monitoring sections and from monitored a continuous monitoring device. Larger networks use centralized systems consisting of a centralized unit and locally distributed meters, each of which monitors specific monitoring sections for moisture and locates the site of damage. The measured value output, the message output as well as the parameterization of the individual devices are carried out from a central device. These central devices are usually equipped with display devices for the graphical representation of the system status and the incoming messages.

Der Erfindung liegt die Aufgabe zugrunde, ein Überwachungssystem für ein mit einer Reglerelektronik versehenes Fernwärmeverteilnetz zu schaffen, das bei Verzicht auf eine gesondertes Übertragungssystem für die Messwerte der Sensorelektroniken eine einfache, genaue Lokalisierung einer Schadensstelle ermöglicht.The invention has for its object to provide a monitoring system for a provided with a controller electronic district heating distribution network, which allows for the absence of a separate transmission system for the measured values of the sensor electronics a simple, accurate localization of a damaged site.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass jede der Sensorelektroniken zur Ermittlung der von ihnen erfassten Messwerte an eine einer der Anschlussstellen zugehörigen Reglerelektronik eingerichtet ist und die Messadern und/oder Messelementen von der mit ihr verbundenen Sensorelektronik zu einer der jeweiligen Anschlussstelle benachbarten Anschlussstelle verlaufen.According to the invention, this object is achieved in that each of the sensor electronics for determining the measured values detected by them is set to an electronic controller associated with one of the connection points, and the measuring wires and / or measuring elements extend from the sensor electronics connected thereto to a connection point adjacent to the respective connection point.

Bei dem von den Sensorelektroniken an die zugehörigen Reglerelektroniken übermittelten Messwerte handelt es sich vorzugsweise um den Isolationswiderstand der Wärmedämmung, andere durch Feuchtigkeit in der Wärmedämmung beeinflusste elektrischen Parameter (Spannungen, Ströme in Amplitude und/oder Signalform), oder den Widerstandswert der Messadem.The measured values transmitted by the sensor electronics to the associated control electronics are preferably the insulation resistance of the thermal insulation, other electrical parameters influenced by moisture in the thermal insulation (voltages, currents in amplitude and / or signal form), or the resistance value of the measuring arm.

Die Messelemente können als Messschleife ausgebildet sein, die durch eine Fühlerader und einer Rückführader gebildet ist.The measuring elements may be formed as a measuring loop, which is formed by a sensor wire and a Rückführader.

Die Erfindung wird im folgenden anhand einer Zeichnung erläutert.The invention will be explained below with reference to a drawing.

Das Fernwärmeverteilnetz besteht aus Rohren 18, das zu Anschlussstellen 10 führt. An den Anschlussstellen sind Regler angeordnet, die mit Pumpen und/oder Ventilen versehen sind, die über eine Reglerelektronik 14 gesteuert werden. Diese Reglerelektronik wird von einer Zentraleinheit 12 gesteuert und abgefragt.The district heating distribution network consists of tubes 18, which leads to connection points 10. At the connection points are arranged regulators, which are provided with pumps and / or valves, which are controlled by a controller electronics 14. This controller electronics is controlled and queried by a central unit 12.

Das Überwachungssystem weist weiter eine Mehrzahl von Sensorelektroniken 16 auf, die Messwerte der Sensoren 20 erfassen, die aus in das Isolationsmaterial der Rohre 18 des Fernwärmeverteilnetzes eingebrachten Messadern und/oder Messelementen bestehen 20.The monitoring system furthermore has a plurality of sensor electronics 16 which detect measured values of the sensors 20 which consist of measuring leads and / or measuring elements introduced into the insulating material of the tubes 18 of the district heating distribution network 20.

Jede der Sensorelektroniken 16 ist zur Übermittlung der von ihnen erfassten Messwerte an die der Anschlussstelle zugehörigen Reglerelektronik 14 eingerichtet. Dabei verlaufen die Sensoren 20 von der mit ihr verbundenen Sensorelektronik 16 zu einer der jeweiligen Anschlussstelle 10 benachbarten Anschlussstelle 10.Each of the sensor electronics 16 is set up to transmit the measured values acquired by them to the controller electronics 14 associated with the connection point. In this case, the sensors 20 extend from the sensor electronics 16 connected to them to a connection point 10 adjacent to the respective connection point 10.

Durch die vorgeschlagene Ausbildung kann mit sehr einfachen Geräten eine vollständige Überwachung auch komplexer Fernwärmenetze durchgeführt werden. Es wird die ohnehin für die Leittechnik (also für die Regler) vorhandene Infrastruktur genutzt: Bei der Abfrage der einzelnen Reglerelektroniken 14 durch die Zentraleinheit 12 erfolgt auch eine Abfrage der Meßwerte der Sensorelektroniken, also z.B. eine Abfrage des Isolationswiderstands des Rohrabschnitts zwischen der abgefragten Reglerelektronik und der benachbarten Anschlussstelle. Da jeweils nur relativ kurze Abschnitte abgefragt werden, ist es auch möglich, differenzierte Aussage über den Netzzustand zu halten, beispielsweise Mehrfachfehler zu erkennen.The proposed training can be carried out with very simple devices complete monitoring even complex district heating networks. The infrastructure which is already available for the control system (ie for the controllers) is used: When the individual controller electronics 14 are polled by the central unit 12, a query of the measured values of the sensor electronics, that is, e.g. a query of the insulation resistance of the pipe section between the requested controller electronics and the adjacent connection point. Since in each case only relatively short sections are queried, it is also possible to keep a differentiated statement about the network status, for example, to detect multiple errors.

Vorteilhaft ist weiter, dass bei Erweiterungen oder Verdichtungen des Fernwärmeverteilnetzes eine zunehmend differenzierte Aussage möglich ist, da die Anschlussstelle der jeweils abgefragten Reglerelektronik und die benachbarte Anschlussstelle bekannt sind, ist auch die jeweils abgefragte Sensorschleife bekannt.A further advantage is that with extensions or densifications of the district heating distribution network increasingly differentiated statement is possible, since the junction of each queried controller electronics and the adjacent junction are known, the respectively queried sensor loop is known.

Zusatzkosten im Bereich des Reglers entstehen praktisch nicht, diese sind bereits heute mit einer ausreichenden Anzahl von Messeingängen versehen, die Sensorelektronik muss an diese Schnittstelle einfach angesteckt werden. Für die Parametrierung stellt die Überwachung lediglich einen zusätzlichen Messwert dar, der in der Zentraleinheit 12 anzuzeigen ist.Additional costs in the area of the controller practically do not arise, they are already provided with a sufficient number of measuring inputs, the sensor electronics must be simply plugged into this interface. For the parameterization, the monitoring merely represents an additional measured value which is to be displayed in the central unit 12.

Claims (2)

  1. Monitoring system for a district heating system, provided with a plurality of regulating electronics (14) each provided at the connecting points (10) of the district heating system, which are controlled and monitored from a central unit (12),
    with a plurality of sensor electronics (16), which detect a measuring value of a sensor coil (20) being brought into the isolation material of pipes (18) of the district heating system and being formed out of a sensing line and a return line,
    characterized in that
    each of the sensor electronic circuits (16) is set for transmission of the measurement values detected by them to the respective regulating electronic (14) to that connecting point (10) and
    the sensor coils (20) are running from the sensor electronic circuit (16) attached thereto to the connecting point (10) neighboring the respective connecting point (10).
  2. Monitoring system according to claim 1, characterized in that the measuring value transmitted from the sensor electronics (16) to the regulating electronics (14) is a resistance value.
EP05001110A 2004-02-17 2005-01-20 Monitoring system for a district heating system Active EP1566618B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05001110T PL1566618T3 (en) 2004-02-17 2005-01-20 Monitoring system for a district heating system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004007597 2004-02-17
DE102004007597 2004-02-17

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EP1566618A1 EP1566618A1 (en) 2005-08-24
EP1566618B1 true EP1566618B1 (en) 2006-07-12

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EP05001110A Active EP1566618B1 (en) 2004-02-17 2005-01-20 Monitoring system for a district heating system

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EP (1) EP1566618B1 (en)
AT (1) ATE333090T1 (en)
DE (2) DE102004047224A1 (en)
DK (1) DK1566618T3 (en)
PL (1) PL1566618T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108488631A (en) * 2018-02-05 2018-09-04 晖保智能科技（上海）有限公司 A kind of heat distribution pipe network remote supervision system based on big-dipper satellite

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2800185C2 (en) * 1978-01-03 1986-09-25 MTC, Meßtechnik und Optoelektronik AG, Neuenburg/Neuchâtel Method and device for the detection and location of leaks in a long-distance pipeline with the aid of a measuring cable laid parallel to the pipeline
JPS6084500A (en) * 1983-10-14 1985-05-13 Hitachi Ltd Estimation for breakage point in pipe net
DE3930530A1 (en) * 1989-09-13 1991-03-21 Veba Kraftwerke Ruhr Leakage monitoring system for thermally-insulated pipeline - uses longitudinal monitoring wires embedded in insulation with monitoring of complex electrical resistance
DE4104216A1 (en) * 1991-02-12 1992-08-13 Bernd Brandes LINE PIPE FOR TRANSPORTING A MEDIUM
DE4124640C2 (en) * 1991-07-25 1999-02-25 Bernd Brandes Piping system
DE4128750C2 (en) * 1991-08-29 1995-03-16 Psi Ges Fuer Prozessteuerungs Method for locating a leak in a fluid pipeline network
DE4324865A1 (en) * 1993-07-23 1995-01-26 Gore W L & Ass Gmbh Leakage detection system

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Publication number Publication date
DE502005000035D1 (en) 2006-08-24
ATE333090T1 (en) 2006-08-15
EP1566618A1 (en) 2005-08-24
DE102004047224A1 (en) 2005-09-22
PL1566618T3 (en) 2006-09-29
DK1566618T3 (en) 2006-11-13

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