DE1038063B - Condensation turbo set with gradual activation of heat exchangers for the delivery of heating energy - Google Patents

Condensation turbo set with gradual activation of heat exchangers for the delivery of heating energy

Info

Publication number
DE1038063B
DE1038063B DEB47464A DEB0047464A DE1038063B DE 1038063 B DE1038063 B DE 1038063B DE B47464 A DEB47464 A DE B47464A DE B0047464 A DEB0047464 A DE B0047464A DE 1038063 B DE1038063 B DE 1038063B
Authority
DE
Germany
Prior art keywords
heat exchangers
condensation
heat
delivery
temperature
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.)
Pending
Application number
DEB47464A
Other languages
German (de)
Inventor
Dr-Ing Herbert Bachl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEB47464A priority Critical patent/DE1038063B/en
Publication of DE1038063B publication Critical patent/DE1038063B/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/34Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
    • F01K7/40Use of two or more feed-water heaters in series
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K17/00Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/02Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Description

Kondensationsturbosatz mit gleiter4der Einschaltung von Wärmetauschern zur Abgabe von Heizwärme Es i.,>t bekannt, Kondensatorturbosätzen in mehreren Druckstufen Dampf zu entnehmen, der teils zur Speisewasservorwärmung, teits zur Wärmezufuhr an einen Wärmeträger dient. Um eine bestimmte Endternperatur dieses Heizmittels zu erzielen, muß erreicht werden, daß der Druck in dem Wärmetauscher der höchsten zur Wärmeabgabe herangezogenen Druckstufe ausreichend hoch gehalten wi,rd. Zu diesein Zweck darf entweder die Maschine nicht eine bestimmte Grenzlast unterschreiten oder der z. B. durch .eine Überströmleitung in die nachgeschalteten Dampfturbinenstufen strömende Arbeitsdampf wird entsprechend abgedrosselt, um den erforderlichen Entnahrnedruck zu halten. Diese Fahrwei,se ist für den Kondensationsbetrieb bei Teillasten sehr unwirtschaftlich.Condensation turbo set with gleiter4der switching on of heat exchangers for the delivery of heat. It is generally known to take steam from condenser turbo sets in several pressure stages, which partly serves to preheat the feed water and partly to supply heat to a heat transfer medium. In order to achieve a certain end temperature of this heating medium, it must be achieved that the pressure in the heat exchanger of the highest pressure level used for heat dissipation is kept sufficiently high, approx. For this purpose either the machine must not fall below a certain limit load or the z. B. through .ein overflow line in the downstream steam turbine stages flowing working steam is throttled accordingly in order to maintain the required Entnahrnedruck. This mode of operation is very uneconomical for condensation operation at partial loads.

Im Gegensatz hierzu sind gemäß der Erfindung in den Dampfzuleitungen zu den Wärmetauschern Regelorgane eingebaut, die von einem Temperaturregler abhängig von der Temperatur des aus dem zugehörigen Wärmetauscher austretendenWärmeträgers in der Weise gesteuert werden, daß bei sinkenden Entnaihmedrücken stufenweise von der höchsten Druckstufe aus beginnend die Dampfzu:fuhr zu den Wirmetauschern gedrosselt bzw. abgeschaltet wird.In contrast, according to the invention are in the steam supply lines Control organs built into the heat exchangers, which depend on a temperature controller on the temperature of the heat transfer medium leaving the associated heat exchanger be controlled in such a way that with decreasing EntnaihmedPressure gradually from The steam supply, starting from the highest pressure level, was throttled to the hot-air exchangers or is switched off.

In der Zeichnung wurde als Beispiel ein Dampfturbosatz dargestellt, der aus einem Hochdrucktei1 a, einem -,#litteld-rucktei,1 b und einem Niederdruckteil c besteht. Im Nehensehluß kann eine Hilfsturbine d die Speisepumj-#eii antreiben. Mit 1 wurden der Kondensator, mit fl bis f7 die Wärmetanscher der Speisewasservorwärmting bezeichnet. g, bis g. sind die Wärmetauscher zur Wärmezufuhr an den Wärmeträger, z. B. Heißwasser. Die Kondensatablaufregler wurden der einfacheren Darstellung weg-en weggelassen Es sei nun angenommen, daß z. B. Rücklaufwasser von 40' C auf eine Vorlauftemperatur von 120' C er- wärmt werden soll und bei einer bestimmten Belastung der Turbine die Entnahrncstuf-e 5 eine Kondensationstemp-eratur von 130' C liefert. In diesem Fall hält ein Temperaturregler die Regelklappe in der Zuleitung zu Wärmetauscher g" geöffnet. Als zweites Beispiel soll die Vorlatiftemperatur auf 100' C abg-esenkt werden und die Kondensationstemperatur der Entnahme 4 bei gegebener Last diesen Wert nicht ganz erreichen. In diesem Fall hält der Teniperaturregler des Wärrnetauschers 94 die zuge hörige Regelklappe völlig offen, während der Regler des Apparates g. die Danipfzufuhr zu diesem soweit drosselt, daß die gewünschte Vorlauftemperatur erreicht wird. Sinkt nun die Last der Turbine oder die Durchflußmünge des Wärmeträgers ab, so daß auch die Entnahmedrücke kleiner werden. während eine Vorlauftemperatur von 100' C beibehalten werden soll, dann öffnet der Regler des Apparatesg" die Dampfzufuhr zu diesem Apparat entsprechend stärker. Bei dem Vorwärmer der untersten Druckstufe ist eine Drosselung im alIgemeinen nicht erforderlich. Wenn die Kondensationstemperatur der Stufe 1 unter die Rücklaufteemperatur des in Apparatg, eintretenden Wärmeträgers absinkt, wird dieser den Apparat durchströmen, ohne daß Dampf niedergeschlagen wird bzw. der zugehörige Ablaufregler in Funktion tritt.In the drawing, a steam turbine set is shown as an example, which consists of a high-pressure part a, a -, # litteld-rucktei, 1 b and a low-pressure part c. In the near future, an auxiliary turbine d can drive the feed pump- # eii. 1 denotes the condenser, and fl to f7 denote the heat exchangers for the feedwater preheating. g to g. are the heat exchangers for supplying heat to the heat transfer medium, e.g. B. hot water. The condensate drain regulators have been omitted for the sake of simplicity. B. return water of 40 'C in a flow temperature of 120' C ER is to be heated and the Entnahrncstuf e-5-a Kondensationstemp erature supplies at a certain load on the turbine of 130 'C. In this case, a temperature controller keeps the control flap in the supply line to heat exchanger g "open. As a second example, the pre -latent temperature is to be lowered to 100 ° C and the condensation temperature of outlet 4 does not quite reach this value at a given load. In this case, hold the temperature regulator of the heat exchanger 94 the associated control flap completely open, while the regulator of the apparatus g. throttles the Danipfzufuhr to this so far that the desired flow temperature is reached Withdrawal pressures become smaller, while a flow temperature of 100 ° C. is to be maintained, the regulator of the apparatusg "opens the steam supply to this apparatus correspondingly more strongly. In the case of the preheater of the lowest pressure stage, throttling is generally not necessary. If the condensation temperature of stage 1 falls below the return temperature of the heat transfer medium entering the apparatus, it will flow through the apparatus without steam being precipitated or the associated flow regulator operating.

Die vorgeschlagene Regelung hat den Vorteil, daß bei einer Verschiebung zwischen der elektrischen Last der Turbine und der gewünsehten H#eizleistung (Menge bzw, Vorlauftemperatur des Wärmeträgers) in einer veränderlich zu wählenden Druckstu:fe nur ein relativ kleiner Teilstrom einer einzigen Entnahme und nicht an einer gleichbleibenden Stelle der Hauptstrom des Turbosatzes ged,rosselt zu werden braucht.The proposed scheme has the advantage that when there is a shift between the electrical load of the turbine and the desired heating output (quantity or, flow temperature of the heat transfer medium) in a variably selectable pressure level: fe only a relatively small partial flow from a single withdrawal and not from a constant one Place the main flow of the turbo set that needs to be puffed.

Claims (1)

PATENTANSPRUCH: Kondensationsturbosatz mit Wärmeabgabe an einen Wärmeträger in, Wärmetauschern, die in verschiedenen Druckstufen hintereiiiandergeschaltet sind, dadurch gekennzeichnet, daß in den Dampfzuleitungen zu den Wärmetauschern Regelorgane eingebaut sind, die von einem Temperaturregier in Abhängigkeit von der Temperatur des aus dern zugehörigen Wärmetausch-er austretenden Wärmeträgers in der Weise gesteuert werden, daß bei sink-enden Entnahniedrücken stufenweise von der höchsten Druckstufe aus beginnend die Dampfzufuhr zu den Wärmetauschern gedrosselt bzw. abgeschaltet wird. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 479 586. PATENT CLAIM: Condensation turbo set with heat transfer to a heat transfer medium, heat exchangers which are connected in series in different pressure stages, characterized in that control elements are built into the steam supply lines to the heat exchangers, which are controlled by a temperature controller depending on the temperature of the heat exchanger belonging to them The heat transfer medium can be controlled in such a way that, when the entrainment pressures decrease, the steam supply to the heat exchangers is throttled or switched off, starting in stages from the highest pressure level. Publications considered: German Patent No. 479 586.
DEB47464A 1958-01-16 1958-01-16 Condensation turbo set with gradual activation of heat exchangers for the delivery of heating energy Pending DE1038063B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB47464A DE1038063B (en) 1958-01-16 1958-01-16 Condensation turbo set with gradual activation of heat exchangers for the delivery of heating energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB47464A DE1038063B (en) 1958-01-16 1958-01-16 Condensation turbo set with gradual activation of heat exchangers for the delivery of heating energy

Publications (1)

Publication Number Publication Date
DE1038063B true DE1038063B (en) 1958-09-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEB47464A Pending DE1038063B (en) 1958-01-16 1958-01-16 Condensation turbo set with gradual activation of heat exchangers for the delivery of heating energy

Country Status (1)

Country Link
DE (1) DE1038063B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE479586C (en) * 1925-05-02 1929-07-19 Kraftanlagen Akt Ges Hot water heating system with multi-stage water heating

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE479586C (en) * 1925-05-02 1929-07-19 Kraftanlagen Akt Ges Hot water heating system with multi-stage water heating

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