CH250577A

CH250577A - Method for operating combustion turbine systems with repeated reheating of the expanding working gas.

Info

Publication number: CH250577A
Authority: CH
Inventors: Cie Aktiengesellschaft Boveri
Original assignee: Bbc Brown Boveri & Cie
Priority date: 1946-05-11
Filing date: 1946-05-11
Publication date: 1947-08-31

Description

  

      Verfahren@zum    Betrieb von     Verbrennungsturbinenanlagen    mit     mehrmaliger     Wiedererwärmung des sich entspannenden     Arbeitsgases.       Die     Erfindung    bildet eine weitere Aus  bildung des     Verfahrens    nach dem     Patent-          anspruch    I des     Hauptpatentes,

          beim    Be  triebe von     Varbrennungs.turbinenanlagen    mit       mehrmaliger        Wiedererwärmung    des sich       entspannenden        Arbeitsgases        mindestens.    eine  der Wiedererwärmungen durch in eine Tur  bine erfolgende     Einführung    und Verbren  nung eines     Brennstoffes    von so hoher Tem  peratur zu bewirken, dass an der     Einfüh-          rungsstelle    ein brennbares     Gemisch        entsteht,

            dessen    Temperatur     mindestens        annähernd     gleich der     Zündtemperatur    ist.  



  In mehrfacher     Hinsicht,    nicht zuletzt  auch zur     Steigerung    der     Diffusionsgeschwin-          digkeit,    ist es     erwünscht,    den in die,     Turbine     einzuführenden Brennstoffstrom in sehr fein       verteilter    Form     einzuführen.    Dies bringt  aber die Gefahr von Verstopfungen der       Brennerdüsen    mit sich, wenn     gasförmiger          Brennstoff    verwendet     wird,

      der durch Ver  gasung     fester        Brennstoffe        in        einer    Ver  gasungskammer erzeugt     wird.     



  Nach     dem    Verfahren gemäss der Erfin  dung     wird    zur Vermeidung dieses Nachteils  der in die     Turbine    einzuführende Brenn  stoffstrom     dem,        übrigen    Brennstoffstrom an       einer    Stelle     entnommen,    die besondere Ge  währ für     Reinheit    bietet.  



  Mit     Vorteil    eignet sich     beispielsweise          hierzu        eine    Stelle in der     Vergasungskammer     oder in einem     Staubabscheider    oder     in.        :einem          Teerabscheider.    Man kann auch den in die  Turbine einzuführenden     Brennstoffstrom     noch zusätzlich     einer        Reinigung    unterziehen.



      Process @ for the operation of combustion turbine systems with repeated reheating of the expanding working gas. The invention forms a further development of the method according to claim I of the main patent,

          when operating varburning turbine systems with repeated reheating of the expanding working gas at least. to bring about one of the reheating by introducing and burning a fuel in a turbine at such a high temperature that a combustible mixture is created at the point of introduction,

            whose temperature is at least approximately equal to the ignition temperature.



  In several respects, not least to increase the diffusion speed, it is desirable to introduce the fuel flow to be introduced into the turbine in a very finely divided form. But this brings with it the risk of clogging of the burner nozzles if gaseous fuel is used,

      generated by the gasification of solid fuels in a gasification chamber.



  According to the method according to the invention, in order to avoid this disadvantage, the fuel flow to be introduced into the turbine is removed from the remaining fuel flow at a point that offers a particular guarantee of purity.



  A location in the gasification chamber or in a dust separator or in a tar separator is advantageously suitable for this purpose, for example. The fuel flow to be introduced into the turbine can also be subjected to cleaning.

Claims

PATENT CLAIM: Process for operating V: combustion turbine systems with repeated heating of the relaxing. Working gases according to claim 1 of the main patent, wherein gaseous fuel produced by gasification of solid fuels in a gasification chamber is used, characterized in that

that the fuel flow to be introduced into the turbine is taken from the rest of the fuel flow at a point that offers a special guarantee of purity. SUBSTITUTE DISCLAIMERS I. Method according to patent claim, characterized in that the fuel flow to be introduced into the turbine is taken from the remaining fuel flow at a point in the gasification chamber. 2.

Method according to patent claim, characterized in that the fuel flow to be introduced into the turbine is removed from the rest of the fuel flow in a dust separator.

3. The method according to claim, characterized in that the fuel flow to be introduced into the turbine is taken from the remaining fuel flow in a tar separator.

4. Procedure. according to patent claim, characterized in that the fuel flow to be introduced into the turbine is additionally subjected to cleaning.