DE102010053645A1 - Reliable control and monitoring device used in e.g. thermal power plant, has electrode probes with mechanical insulation for detecting water level of boiler, and electric resistance heater to avoid freezing of water in boiler - Google Patents

Reliable control and monitoring device used in e.g. thermal power plant, has electrode probes with mechanical insulation for detecting water level of boiler, and electric resistance heater to avoid freezing of water in boiler Download PDF

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Publication number
DE102010053645A1
DE102010053645A1 DE201010053645 DE102010053645A DE102010053645A1 DE 102010053645 A1 DE102010053645 A1 DE 102010053645A1 DE 201010053645 DE201010053645 DE 201010053645 DE 102010053645 A DE102010053645 A DE 102010053645A DE 102010053645 A1 DE102010053645 A1 DE 102010053645A1
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Prior art keywords
boiler
monitoring device
electric resistance
water level
resistance heater
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DE201010053645
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German (de)
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Anmelder Gleich
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Thermal Sciences (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

The control and monitoring device has electrode probes with mechanical insulation for detecting the water level of steam or hot water boiler. An electric resistance heater is provided to avoid freezing of water in the boiler.

Description

zu §10 (2) 1.–3. PatV: Gebiet, S. d. T, Problem:to §10 (2) 1.-3. PatV: Area, S. d. T, problem:

Die letzten Jahre wurde die Stromerzeugung in Deutschland liberalisiert. Damit einhergehend wurden Sicherheitsstandards reduziert und Arbeitsabläufe durch die Betreiber rationalisiert. Früher waren derartige Anlagen andauernd personell besetzt und beaufsichtigt. Heute findet Fernüberwachung statt mit einhergehender unzuverlässiger technischer Funktion mit oftmals unzuverlässigem beziehungsweise unkundigem Personal. Mit dieser unverantwortlichen Rationalisierung konnte bisher weder der Stand der Technik noch die Gesetzgebung mithalten.Electricity generation in Germany has been liberalized in recent years. Along with this, safety standards were reduced and workflows rationalized by the operators. Previously, such facilities were constantly staffed and supervised. Today remote monitoring takes place with associated unreliable technical function with often unreliable or ignorant personnel. So far, neither the state of the art nor the legislation has been able to keep up with this irresponsible rationalization.

In der Altstadt von Wasserburg am Inn wäre so am 24.8.2005 durch eine technische Fehlfunktion an der Niveauregulierung des Wasserkraftwerks – Stand der Technik laut Baujahr 1938 – um Haaresbreite eine katastrophale Überschwemmung mit einem wirtschaftlichen Schadenspotential von bis zu 500 Millionen Euro verursacht worden.In the old town of Wasserburg am Inn on 24.8.2005 a catastrophic flooding with an economic damage potential of up to 500 million Euros would have been caused by a technical malfunction at the level control of the hydroelectric power plant - state of the art according to year of construction 1938.

Laut Stand der Technik sind seit Jahrzehnten zuverlässige Regler und Wächter beziehungsweise Begrenzer ( DIN 3440 ) „Besonderer Bauart” für den Wasserstand als sicherheitsgerichtete Bauteile in brisanten Thermischen Kraftwerksanlagen respektive Dampf- und Heisswasserkesselanlagen ohne ständige Beaufsichtigung erfolgreich im Einsatz. TRD 604 Ziffer 3.6.1: „... „Besondere Bauart” liegt vor, wenn im elektrischen und mechanischen Teil bei jedem Gerät eine regelmäßig ablaufende Prüfung (z. B. bei Elektrodenwasserstandgeräten die Überwachung des Isolationswiderstandes, bei Tauchkörpergeräten die automatische Funktionsprüfung, bei außenliegenden Geräten das getrennte Durchblasen der Verbindungsleitungen) selbsttätig erfolgt. Der zeitliche Abstand dieser Prüfungen darf höchstens 6 Stunden betragen ...”. Diese Geräte schützen hier den Kesselstahl vor Überhitzung und katastrophalem Festigkeitsverlust in Folge von Kühlmittelverlust respektive Wassermangel.According to the state of the art, reliable regulators and monitors or limiters ( DIN 3440 ) "Special design" for the water level as safety-related components in explosive thermal power plants respectively steam and hot water boiler systems without constant supervision successfully in use. TRD 604 Section 3.6.1: "..." Special design "exists if the electrical and mechanical parts of each device are subject to a periodic test (eg for electrode water level monitors the insulation resistance, for submersible devices the automatic functional test) external devices separate blowing through the connecting lines) is done automatically. The interval between these tests may not exceed 6 hours ... ". These devices protect the boiler steel from overheating and catastrophic loss of strength as a result of loss of coolant or lack of water.

zu §10 (2) 4.–6. PatV: Erfindung, Anwendbarkeit, Vorteile:to §10 (2) 4.-6. PatV: invention, applicability, advantages:

Derartige in Kesselanlagen bewährten Bauteile werden nun auch in sicheren Wasserkraft- und -pumpanlagen sowie sonstigen -stauwerken ohne ständige Beaufsichtigung eingesetzt. Gegebenenfalls werden sie hierzu auch mit mechanischen Schutzeinrichtungen sowie Beheizung als Einfrierschutz versehen. Sie regeln, überwachen beziehungsweise begrenzen kapazitiv beziehungsweise induktiv den Wasserstand im Ober- beziehungsweise Unterwasser von Wasserkraft- oder -pumpanlagen sowie sonstigen -stauwerken. Die Besonderheit liegt in der Tatsache begründet, dass diese Einrichtungen wie vorbeschrieben nachweislich zuverlässig funktionieren beziehungsweise in „Besonderer Bauart” selbstüberwachend und fehlersicher gegebenenfalls auch gutachterlich „TÜV geprüft” sind. Damit können Anlagen für einen verantwortungsvollen Betrieb in Fernüberwachung ohne ständige personelle Beaufsichtigung ausgerüstet werden ohne die Gefahr vorbeschriebener etwaiger Überschwemmungen.Such proven in boiler systems components are now used in safe hydropower and pumping plants and other dams without constant supervision. If necessary, they are also provided with mechanical protection devices and heating as Einfrierschutz. They regulate, monitor or limit capacitively or inductively the water level in the upper or underwater of hydropower or pumping plants as well as other dams. The peculiarity is due to the fact that these facilities as described above work reliably or in "special design" self-monitoring and fail-safe if necessary, also expert "TÜV tested". Thus, facilities for responsible operation in remote monitoring can be equipped without permanent supervision of personnel without the risk of any possible floods described above.

zu §10 (2) 7. PatV: Ausführungsbeispiel:to §10 (2) 7. PatV: Exemplary embodiment:

Eine detailierte Beschreibung und die technische Funktionsweise kann dem Stand der Technik im Bereich Kesselanlagen laut Beschreibung (s. a. www.gestra.de , www.spiraxsarco.com ) in der Anlage „Beschreibung Seite 1, 2 & 3” entnommen werden. Üblicherweise werden z. B. Elektroden-Sonden mit zusätzlichem mechanischen Schutz, versehen z. B. mittels Messflaschen mit kommunizierenden Röhren/Öffnungen. Gegebenenfalls werden die Geräte zum Einfrierschutz mit einer zusätzlichen Beheizung versehen z. B. mittels elektrischer Widerstandsheizung. Auch diese wird dann wiederum fehlersicher elektrisch überwacht mit periodischer An- und Abschaltung sowie logischer Plausibilitätskontrolle.A detailed description and the technical operation, the state of the art in the field of boiler systems as described (see www.gestra.de . www.spiraxsarco.com ) in the appendix "Description page 1, 2 &3". Usually z. B. electrode probes with additional mechanical protection provided z. B. by means of measuring bottles with communicating tubes / openings. If necessary, the devices for freezing protection are provided with an additional heating z. B. by means of electrical resistance heating. Again, this is then fail-safe electrically monitored with periodic connection and disconnection and logical plausibility control.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.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.

Zitierte Nicht-PatentliteraturCited non-patent literature

  • DIN 3440 [0003] DIN 3440 [0003]
  • www.gestra.de [0005] www.gestra.de [0005]
  • www.spiraxsarco.com [0005] www.spiraxsarco.com [0005]

Claims (1)

Zuverlässige Regler und Wächter/Begrenzer „Besonderer Bauart” im Bereich der überwachungsbedürftigen Anlagen nach GPSG/BetrSichV beziehungsweise in Dampf- und Heisswasserkesselanlagen nach TRD ohne ständige Beaufsichtigung sind seit Jahrzehnten als Stand der Technik bewährt. Der Patentanspruch begründet sich in der Tatsache, dass diese Einrichtungen im beschriebenen Bereich der Wasserkraft- oder -pumpanlagen sowie sonstigen -stauwerke – gegebenenfalls ergänzt um eine Beheizung zum Einfrierschutz – bisher nicht eingesetzt werden.Reliable regulators and monitors / limiters of "special design" in the area of systems requiring monitoring according to GPSG / BetrSichV or in steam and hot water boiler systems according to TRD without constant supervision have been proven state of the art for decades. The claim is based on the fact that these facilities in the described area of hydropower or pumping plants as well as other dams - if necessary supplemented by a heating for freeze protection - have not yet been used.
DE201010053645 2010-10-31 2010-12-07 Reliable control and monitoring device used in e.g. thermal power plant, has electrode probes with mechanical insulation for detecting water level of boiler, and electric resistance heater to avoid freezing of water in boiler Withdrawn DE102010053645A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE201010053645 DE102010053645A1 (en) 2010-10-31 2010-12-07 Reliable control and monitoring device used in e.g. thermal power plant, has electrode probes with mechanical insulation for detecting water level of boiler, and electric resistance heater to avoid freezing of water in boiler

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102010049730 2010-10-31
DE102010049730.4 2010-10-31
DE102010049881 2010-11-01
DE102010049881.5 2010-11-01
DE201010053645 DE102010053645A1 (en) 2010-10-31 2010-12-07 Reliable control and monitoring device used in e.g. thermal power plant, has electrode probes with mechanical insulation for detecting water level of boiler, and electric resistance heater to avoid freezing of water in boiler

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DE102010053645A1 true DE102010053645A1 (en) 2012-05-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886952A1 (en) * 2013-03-18 2015-06-24 Walter Wuerzinger Reliable controller and monitor/limiter of a special design for the water level in combination with automatically monitored anti-freeze protection for hydraulic engineering systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8226971U1 (en) * 1982-09-24 1983-02-10 Riedmayer, Herbert, 8202 Bad Aibling SENSOR DEVICE FOR MONITORING THE VARIABLE FLOW RESISTANCE OF THE INPUT SIDE CALCULATION OF WATER TURBINE PLANTS
US20090198458A1 (en) * 2008-01-29 2009-08-06 Mcdermid John Water measurement auto-networks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8226971U1 (en) * 1982-09-24 1983-02-10 Riedmayer, Herbert, 8202 Bad Aibling SENSOR DEVICE FOR MONITORING THE VARIABLE FLOW RESISTANCE OF THE INPUT SIDE CALCULATION OF WATER TURBINE PLANTS
US20090198458A1 (en) * 2008-01-29 2009-08-06 Mcdermid John Water measurement auto-networks

Non-Patent Citations (10)

* Cited by examiner, † Cited by third party
Title
Die neuen Wasserstandbegrenzer und Hochwasserstandsicherung. GESTRA AG Bremen. URL: http://www.gestra.de/produkte/sil.php [abgerufen am 31.10.2010] *
DIN 3440
Endress + Hauser: Füllstandmessung in Dampfkesseln. Weil am Rhein, Oktober 2009. - Firmenschrift *
Endress + Hauser: Füllstandsmesstechnik Produktübersicht für Anwendungen in Flüssigkeiten und Schüttgütern. Weil am Rhein, April 2009. - Firmenschrift *
Endress + Hauser: Sicherheitshinweise zur Dampfkesselzulassung Levelflex M FMP45, Levelflex M FMP45 + Prozessmessumformer RMA422. April 2010. *
GESTRA AG Bremen. URL: http://www.gestra.de *
Norm TRD 604 Technische Richtlinien für Dampfkessel. *
SPIRAX-SARCO Limited. URL: http://www.spiraxsarco.com/ *
www.gestra.de
www.spiraxsarco.com

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886952A1 (en) * 2013-03-18 2015-06-24 Walter Wuerzinger Reliable controller and monitor/limiter of a special design for the water level in combination with automatically monitored anti-freeze protection for hydraulic engineering systems

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Effective date: 20130118