Power plants – Combustion products used as motive fluid – Combustion products generator
Reexamination Certificate
1999-04-09
2001-02-20
Thorpe, Timothy S. (Department: 3746)
Power plants
Combustion products used as motive fluid
Combustion products generator
C060S734000, C060S741000, C060S746000, C060S039281
Reexamination Certificate
active
06189321
ABSTRACT:
BACKGROUND OF THE INVENTION
Field of the Invention
The invention relates to a distributor for supplying burners of a gas turbine with fuel, air and coolant.
Such distributors are used to deliver fuel, each in a desired composition and a required quantity, to burners of gas turbines.
Apparatuses of this type thus far known include a combination of ring lines and tie lines through which the fuel is distributed to the individual burners. It is very complicated and expensive to replace defective components. In nearly every case, it is not merely one component that has to be removed and replaced with a new one. On the contrary, it is nearly always necessary to take out a plurality of components for repair. In extreme cases, the entire apparatus has to be dismantled. In addition, the known apparatus does not make it possible to regulate the burners in a targeted way. They also lack a testing device with which leaks can be found in the pipeline system between the distributors and the burners. Moreover, in none of the burners can wear, soiling and aging be ascertained.
SUMMARY OF THE INVENTION
It is accordingly an object of the invention to provide a distributor that overcomes the above-mentioned disadvantages of the prior art devices of this general type.
With the foregoing and other objects in view there is provided, in accordance with the invention, a distributor for supplying burners of a gas turbine with fuel, air and coolant, the distributor including: at least one regulating unit to be connected to each burner of a gas turbine; at least one supply line connected to the at least one regulating unit and extending to the burner for conducting fuel, air and coolant to the burner; a distributor unit along with a defined number of regulating units forming a module; and feed lines connected to the distributor unit for conducting the fuel, the air and the coolant to the distributor unit.
In accordance with an added feature of the invention, the module is at least two modules provided for supplying a plurality of burners and each of the burners having an attachment flange, each of the at least two modules having at least one distributor unit, the regulating units of the distributor unit are positioned side by side in a same plane as the attachment flange of the burners.
In accordance with an additional feature of the invention, there is at least one valve disposed in each of the connecting lines; a measuring and regulating device; a first signal line connecting the at least one valve to the measuring and regulating device; a second signal line connected to the measuring and regulating device; sensors disposed in the connecting lines and connected to the second signal line, the sensors communicating over the second signal line with the measuring and regulating device; a control system unit; and a field bus line connected between the control system unit and the sensors.
In accordance with a concomitant feature of the invention, the at least one supply line is a plurality of supply lines and the burners are disposed in a circle at a predetermined, equal angular spacing from one another, the at least two modules positioned at a spacing from one another such that the burners disposed in the circle are disposed regionally in between the at least two modules, and the supply lines extending parallel, on an outside around the burners, in a vertical plane at a slight spacing from one another from the connection flange of each burner.
Other features which are considered as characteristic for the invention are set forth in the appended claims.
Although the invention is illustrated and described herein as embodied in a distributor, it is nevertheless not intended to be limited to the details shown, since various modifications and structural changes may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims.
The construction and method of operation of the invention, however, together with additional objects and advantages thereof will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
Banhardt Volker
Josuhn-Kadner Burkhard
Milanovic Raiko
Schüle Volker
Waldi Wolfgang
ABB Patent GmbH
Greenberg Laurence A.
Hayes Eric D.
Lerner Herbert L.
Stemer Werner H.
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