DE708930C - Process for regulating steam power plants - Google Patents

Process for regulating steam power plants

Info

Publication number
DE708930C
DE708930C DES112235D DES0112235D DE708930C DE 708930 C DE708930 C DE 708930C DE S112235 D DES112235 D DE S112235D DE S0112235 D DES0112235 D DE S0112235D DE 708930 C DE708930 C DE 708930C
Authority
DE
Germany
Prior art keywords
steam
engine
power plants
steam power
regulating steam
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
Application number
DES112235D
Other languages
German (de)
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DES112235D priority Critical patent/DE708930C/en
Application granted granted Critical
Publication of DE708930C publication Critical patent/DE708930C/en
Expired 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16Steam 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/18Steam 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 only of turbine type the turbine being of multiple-inlet-pressure type
    • F01K7/20Control means specially adapted therefor

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

Verfahren zur Regelung von Dampfkraftanlagen Die Erfindung betrifft ein Verfahren zur Regelung von Dampfkraftanlagen, die gemäß dem Hauptpatent betrieben werden. Das in dem Hauptpatent angegebene Verfahren besteht darin, daß der Erzeugungsdruck des Dampfes und sein spezifisches Volumen in Abhängigkeit von den Belastungsschwankungen der Dampfkraftmaschine so eingeregelt werden, daß das ihr zuströmende sekundliche Dampfvolumen im wesentlichen konstant bleibt. Anders ausgedrückt, besteht dieses Verfahren darin, daß der Betriebsdruck der Kraftmaschine bzw. der Erzeugungsdruck des Dampfes im Kessel mit der Belastung der Kraftmaschine gesteigert wird, und umgekehrt. Verfolgt @ man nun die Verhältnisse, die sich aus einer solchen Betriebsweise hergeben, in einem IS-Diagramm, so findet man, daß der Anwendung des Verfahrens früher oder später dadurch eine Grenze gesetzt ist, daß sich am Ende des Expansionsverlaufes in der Kraftmaschine Dampffeuchtigkeitswerte einstellen, die eine Gefahr für die Maschine darstellen.Method for controlling steam power plants The invention relates to a method for regulating steam power plants that operate in accordance with the main patent will. The method specified in the main patent is that the generation pressure of the steam and its specific volume depending on the load fluctuations of the steam engine are regulated so that the secondary Steam volume remains essentially constant. In other words, it exists Method in that the operating pressure of the engine or the generation pressure of the steam in the boiler is increased with the load on the engine, and vice versa. If you now follow the conditions that result from such a mode of operation, in an IS diagram, one finds that the application of the method earlier or later a limit is set by the fact that at the end of the expansion process Set steam humidity values in the engine that pose a risk to the Represent machine.

Gemäß der Erfindung wird nun vorgeschlagen, dann, wenn die Dampfnässe am Ende des Entspannungsverlaufes der Kraftmaschine ein -weiteres Steigern des Erzeugungsdruckes des Dampfes verbietet, durch Dampfzufuhr in eine spätere Stufe des Entspannungsverlaufes der Kraftmaschine diese Dampfnässe herabzusetzen und damit eine weitere Steigung des Erzeugungsdruckes des Dampfes zu ermöglichen. Es ist bei Dampfturbinen an sich bekannt, einer späteren Stufe des Entspannungsverlaufes Dampf zuzuführen. Bei den bekannten Anlagen kann aber durch eine Zufuhr von sogenanntem überschußdampf nicht mehr erreicht werden, als da.ß dadurch einmalig die Leistung der Kraftmaschine auf eine bestimmte Spitzenleistung heraufgesetzt wird. Mit der Zufuhr von Dampf in eine spätere Stufe des Entspannungsverlaufeswird dagegen bei einer Kraftanlage, auf die sich die Erfindung bezieht, insofern mehr erreicht, als .auch nach der Zufuhr von Zusatzdampf noch eine Möglichkeit einer -weiteren Leistungssteigerung der Anlage besteht. Führt man nämlich Dampf in eine spätere Entspannungsstufe ein und setzt man dadurch die vorher auf einen gefährlichen Wert angewachsene Dampffeuchtigkeit herab, so kann man jetzt wieder das in dem Hauptpatent angegebene Verfahren zur Anwendung bringen und die Leistung der Kraftmaschine nochmals um einen bestimmten Betrag -weiter steigern, nämlich so lange, bis die Dampffeuchtigkeit dann wieder einen gefahrbringenden Wert angenommen hat. Man kann es also auch so ausdrücken, daß das Wesentliche der Erfindung darin besteht, daß der Bereich, in welchem das im Hauptpatent angegebene Verfahren anwendbar ist, erweitert wird.According to the invention it is now proposed when the wetness of the steam at the end of the expansion of the engine, a further increase in the generation pressure of the steam forbids by supplying steam in a later stage of the relaxation process the engine to reduce this wetness and thus a further slope to enable the generation pressure of the steam. It is with steam turbines per se known to supply steam to a later stage of the expansion process. Both known systems cannot, however, by supplying so-called excess steam more can be achieved than the one-time increase in the power of the engine a certain peak power is increased. With the supply of steam into a The later stage of the relaxation process is, however, in the case of a power plant the invention relates to the extent that more is achieved than .also after the supply of Additional steam is another possibility of further increasing the performance of the system consists. If you introduce steam into a later relaxation stage and set the steam humidity, which had previously risen to a dangerous level, is thereby removed down, you can now use the method specified in the main patent Apply and the power of the engine again by a certain Increase the amount further, namely until the steam humidity returns a dangerous one Has assumed value. So you can do it too so express that the essence of the invention is that the area in which the method specified in the main patent can be used is expanded.

Ein Ausführungsbeispiel der Erfindung ist in der Abbildung dargestellt. Die Dampfkraftanlage ist mit z, das Frischdampfnetz mit 2, der mit lastabhängigem Druck betriebene Dampferzeuger mit 3 bezeichnet. An der Frischdampfzuleitung zur Kraftmaschine t ist theoretisch jedenfalls kein Regelorgan notwendig. In der Abbildung ist in dieser Leitung deshalb lediglich ein Schnellschlußregler ¢ angedeutet worden. Der Zusatzdampf wird der Kraftmaschine t über die Leitung 5 zugeführt. Die Abbildung - zeigt in der Leitung 5 noch ein Ventil 6. Dieses Ventil kann entweder von Hand betätigt werden oder unter Umständen auch ganz wegbleiben. Erforderlichenfalls kann man das Ventil 6 auch derart steuern, daß es sich sofort ganz öffnet, wenn der Druck im Frischdampfnetz 2 einen bestimmten oberen Grenzwert erreicht bzw. sofort ganz schließt, wenn dieser Druck unterschritten wird. Es empfiehlt sich im übrigen, das Ventil 6 dein Schnellschlußregler q. mit zu unterstellen.An embodiment of the invention is shown in the figure. The steam power plant is marked with z, the live steam network with 2, the one with load-dependent Designated 3 pressure-operated steam generator. At the main steam supply line to In any case, the engine t is theoretically not necessary for a regulating element. In the picture a trip regulator ¢ has therefore only been indicated in this line. The additional steam is fed to the engine t via line 5. The illustration - shows a valve 6 in line 5. This valve can either be operated manually be operated or, under certain circumstances, remain completely absent. If necessary, can the valve 6 can also be controlled in such a way that it immediately opens completely when the pressure reaches a certain upper limit value in the main steam network 2 or immediately completely closes when this pressure is not reached. It is also recommended that Valve 6 your trip regulator q. to be assumed with.

Claims (1)

PATENTANSPRUCH: Verfahren zur Regelung von Dampfkraftanlagen nach Patent 703 388, dadurch gekennzeichnet, daß dann, wenn die Dampfnässe am Ende des Entspannungsverlaufes der Dampfkraftmaschine eine weitere Steigerung des Erzeugungsdruckes des Dampfes verbietet, durch Dampfzufuhr in eine spätere Stufe des Entspannungsverlaufes der Kraftmaschine diese Dampfnässe herabgesetzt und damit eine weitere Steigerung des Erzeugungsdruckes des Dampfes ermöglicht wird.PATENT CLAIM: Process for regulating steam power plants according to patent 703 388, characterized in that when the steam wetness at the end of the expansion course of the steam engine prohibits a further increase in the generation pressure of the steam, this steam wetness is reduced by adding steam to a later stage of the expansion process of the engine so that a further increase in the generation pressure of the steam is made possible.
DES112235D 1933-12-22 1933-12-22 Process for regulating steam power plants Expired DE708930C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES112235D DE708930C (en) 1933-12-22 1933-12-22 Process for regulating steam power plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES112235D DE708930C (en) 1933-12-22 1933-12-22 Process for regulating steam power plants

Publications (1)

Publication Number Publication Date
DE708930C true DE708930C (en) 1941-08-01

Family

ID=7531635

Family Applications (1)

Application Number Title Priority Date Filing Date
DES112235D Expired DE708930C (en) 1933-12-22 1933-12-22 Process for regulating steam power plants

Country Status (1)

Country Link
DE (1) DE708930C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092551A1 (en) * 1981-11-02 1983-11-02 Gen Electric Method for operating a steam turbine with an overload valve.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092551A1 (en) * 1981-11-02 1983-11-02 Gen Electric Method for operating a steam turbine with an overload valve.
EP0092551A4 (en) * 1981-11-02 1984-03-26 Gen Electric Method for operating a steam turbine with an overload valve.

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