Regulation system for a steam turbine installation
US4118935A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1976 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Dec 9, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01K7/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A regulation system for a steam turbine installation comprising a steam generator and a multi-stage turbine installation incorporating a high-pressure stage. The regulation system comprises a regulation valve arranged between the steam generator and the high-pressure stage of the turbine installation and a by-pass valve connected in parallel with said high-pressure stage, as well as control devices with associated control circuits for said valves. The control device for the by-pass valve is influenced by the signal from the control circuit of the regulation valve such that when the opening of the regulation valve exceeds a predetermined magnitude the control device for the by-pass valve opens such by-pass valve to a predetermined magnitude. Further, the control circuit of the by-pass valve is connected in parallel with a differentiation element which influences the degree of opening of the by-pass valve as a function of variations in the signal received from the control circuit of the regulation valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.