Patent · US Expired

Process and plant for generating steam using waste heat

US5044163A · kind A · utility

29Cited by

3References

16Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hermann Bruckner · Uttenreuth, DE
Lothar Stadie · Hochstedt, DE
Josef Pulec · Herzogenaurach, DE

Key dates

Filing date	Aug 8, 1990
Grant date	Sep 3, 1991
Priority date	—
Expiry date	Aug 8, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E20/16
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In plants for generating steam using waste heat, the heat in the hot waste gases flowing through the steam generator must be utilized with maximum efficiency. To this end, the feed water is branched into two streams, one of which flows into the high-pressure heating surfaces and the other into the heating surfaces of the medium-pressure evaporator. The division of the two streams is controlled as a function of the quality of the steam, so that the steam in the heating surfaces of the intermediate superheater is heated to the same temperature as the steam in the heating surfaces of the high-pressure superheater. The invention is particularly useful in combined gas and steam turbine power plants.

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