Abstract:
The present invention relates to a method for operating a steam power plant with a first turbine condenser (4) and a second turbine condenser (6) which are connected in series on the cooling water side, wherein the temperature (t1) and the pressure (p1) of the exhaust steam (3) in the first turbine condenser (4) are higher than the temperature (t2) and the pressure (p2) of the exhaust steam (5) in the second turbine condenser (6), and the condensate is fed to at least two low pressure pre-heaters (11, 12, 13) that are connected in series. The aim of the present invention is to increase the efficiency of a steam power plant. Said aim is achieved in that a part (22) of the warm exhaust gas (3) of the first turbine condenser (4) is brought into contact with the cold condensate of the second turbine condenser (6) via an exhaust steam pump (21).
Abstract:
A fluid recirculation system [30] includes an arrangement of a flow control valve [50] located to receive a flow of fluid from an inlet. The system [30] further comprises an economizer inlet mixing device [54] located to receive the flow of hotter fluid from the arrangement of the flow control valve [50] and from a cooler feedwater stream. An economizer inlet mixing device [54] located upstream of an economizer [22] in a supercritical pressure boiler [10] includes a sparger assembly through which a flow of fluid from the waterwall [14] outlet is received, an inlet through which a flow of fluid from a feed stream is received, and a wave breaker assembly [84] through which an outlet stream from the economizer inlet mixing device [54] is directed. A method of increasing and controlling the temperature of a flue gas exiting an economizer [22] in a supercritical pressure boiler [10] includes receiving at least a flow of fluid from a fluid stream [37] from a furnace [12] waterwall [14] outlet, combining at least a portion of the received flow of fluid [37] with a feedwater stream, and directing the combined received flow of fluid and feedwater stream to an economizer [22] inlet to decrease the economizer [22] heat absorption.
Abstract:
The present disclosure envisages a system that increases the regenerative feed heating of feed water. The system includes a steam turbine that is configured to receive high pressure steam provide low pressure expanded steam subsequent to the expansion of the high pressure steam thereon. A condenser that is configured to receive a first stream of expanded steam and facilitate the condensation of the first stream to provide a condensate. The LP heater is configured to receive the condensate and a second stream of expanded steam and generate a heated condensate. The deaerator is configured to receive the heated condensate and facilitate removal of dissolved oxygen from the heated condensate. The VAM comprises a VAM condenser that is configured to facilitate heating of the condensate prior to entering within the LP heater. A VAM absorber configured to facilitate heating of the heated condensate prior to entry within the deaerator.
Abstract:
The present invention relates to a method for operating a steam power plant with a first turbine condenser (4) and a second turbine condenser (6) which are connected in series on the cooling water side, wherein the temperature (t1) and the pressure (p1) of the exhaust steam (3) in the first turbine condenser (4) are higher than the temperature (t2) and the pressure (p2) of the exhaust steam (5) in the second turbine condenser (6), and the condensate is fed to at least two low pressure pre-heaters (11, 12, 13) that are connected in series. The aim of the present invention is to increase the efficiency of a steam power plant. Said aim is achieved in that a part (22) of the warm exhaust gas (3) of the first turbine condenser (4) is brought into contact with the cold condensate of the second turbine condenser (6) via an exhaust steam pump (21).
Abstract:
Die Erfindung betrifft ein Verfahren zur Vorwärmung von Rohwasser in einer Kraftwerksanlage (1) mit einem Wasser-Dampf- Kreislauf (2), die Kraftwerksanlage (1) umfassend einen Dampferzeuger (3), eine Dampfturbine (4) sowie Dampfleitungen (5), von denen zumindest einige den Dampferzeuger (3) mit der Dampfturbine (4) verbinden, wobei Rohwasser für eine Deionaterzeugung durch Abwasser aus dem Wasser-Dampf- Kreislauf (2) erwärmt wird und das Abwasser dem Rohwasser zur Erwärmung des Rohwassers beigemischt wird. Die Erfindung betrifft ferner eine Kraftwerksanlage (1).
Abstract:
A heat exchanger includes an enclosure having a separator disposed therein that divides the heat exchanger into a mixing area and a heat exchange area. The mixing area is configured to receive a hot fume and droplets of a liquid for mixing with each other to form a fume-droplet vapor mixture. The mixture is configured to flow through orifices of the separator into the heat exchange area. A plurality of magazines is disposed within the heat exchange area of the first enclosure. Each magazine defines a cavity. The cavities are disposed in communication with one another. A lower-most magazine is configured to receive a receiver medium that is pumped through the cavity of each successive magazine to an upper-most magazine. The mixture is configured to circulate about the magazines to incrementally heat the receiver medium as the receiver medium is pumped through the cavity of each successive magazine.