Patent · US Active

Method for low load operation of a power plant with a once-through boiler

US10196939B2 · kind B2 · utility

1Cited by

12References

11Claims

0Family size

Assignee

GENERAL ELECTRIC TECHNOLOGY GMBH · CH

Inventors

Volker Schüle · Leimen, DE
Stephan Hellweg · Besigheim, DE
Reinhard Leithner · Braunschweig, DE
Niels Brinkmeier · Braunschweig, DE

Key dates

Filing date	Jul 23, 2015
Grant date	Feb 5, 2019
Priority date	—
Expiry date	May 16, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF22D1/32
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The once-through boiler includes a water supply and at least an economizer, an evaporator superheater. No valves are provided between the economizer, the evaporator and the superheater. The high-pressure turbine includes a control valve. The method for low load operation of a power plant with a once-through boiler and a high pressure turbine includes providing a parameter indicative of the stable operation of the once-through boiler in once-through operation, and on the basis of this parameter adjusting the control valve in order to regulate the pressure within the economizer and evaporator and/or adjusting the temperature of the water supplied to the economizer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.