Control of parallel operated turbines in cogeneration

Details Control of parallel operated turbines in cogeneration Control of parallel operated turbines in cogeneration

1979-09-27

1981-06-02

Ruggiero, Joseph F.

Boots, shoes, and leggings

60706, 60711, 290 4R, 290 40R, G06F 1546, F01D 1700

Patent

active

042714737

ABSTRACT:
A control system is provided for turbines in the utility part of an industrial plant using cogeneration so that control is maintained over the relative quantities of steam supplied to a common steam header from both the back pressure and the extraction turbines where the header supplies process steam at a predetermined pressure. The steam flow from a stage of the extraction turbine is controlled to maintain the header pressure at its desired value. The steam flow thus controlled is measured and a control means is provided to control the steam flow from a back pressure turbine supplying the same header so as to maintain a predetermined relationship between the two steam flows while maintaining electrical generation from the generators driven by the turbine at a maximum consistent with maintenance of an adequate control range for the header pressure control.

REFERENCES:
patent: 3391539 (1968-07-01), Dimitroff, Jr. et al.
patent: 3623324 (1971-11-01), Eggenberger
patent: 3930367 (1976-01-01), Gasparoli
patent: 4007595 (1977-02-01), Braytenbah
patent: 4039846 (1977-08-01), Vance
patent: 4069675 (1978-01-01), Adler et al.

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