摘要:
The invention relates to a continuous flow steam generator (19) having a tank (20) comprising a heat transfer medium inlet (21) and a heat transfer medium outlet (22), wherein a heat transfer medium channel (23) is formed between the heat transfer medium inlet (21) and the heat transfer medium outlet (22), and a heat transfer medium flows in said channel, having steam generator tubes (24) disposed in the heat transfer medium channel (23), wherein a first portion (25) of the steam generator tubes (24) are designed as a system of superheater (26) and reheater (27) tubes, and a second portion (28) of the steam generator tubes (24) is designed as a system of preheating (29) and boiler tubes (30), and the first portion (25) is disposed upstream of the second portion (28) in the flow direction of the heat transfer medium. The invention further relates to a steam generator device (34) having a continuous flow steam generator (19) and a water separation system (33). The invention further relates to a solar thermal power plant.
摘要:
There is disclosed a method and apparatus for exchanging heat between a first fluid and a second fluid immiscible with said first fluid comprising the step of presenting one of said fluids in finely divided form for direct contact with the others. One fluid may be a molten metal which is sprayed or bubbled through the other.
摘要:
Die Erfindung betrifft ein Verfahren zum indirekten Wärmeaustausch zwischen einer Salzschmelze (2, 2') als erstem Wärmeträger und mindestens einem zweiten Wärmeträger (15, 15'). Erfindungsgemäß wird zum Wärmeaustausch zwischen der Salzschmelze (2, 2') und dem zweiten Wärmeträger (15, 15') zumindest ein gewickelter Wärmeaustauscher (5) eingesetzt.
摘要:
In a base part (1) of a plant in the basic materials industry, hot exhaust gases occur during a first phase (P1) of a plant cycle. In a second phase (P2) of the plant cycle, the hot exhaust gases do not occur or only to a considerably reduced extent. The hot exhaust gases are removed from the base part (1) by way of a pipeline system (2) and discharged to the outside air. At least in the first phase (P1), molten salt is removed from a first tank vessel (7) and used for the direct or indirect cooling of a first portion (5) of the pipeline system (2). The heated-up molten salt (6) is fed to a second tank vessel (8). In a second portion (9) of the pipeline system (2), which is arranged downstream of the first portion (5), the pipeline system (2) is cooled with water. In an evaporator (13), water is evaporated, in a superheater (14) the steam is superheated and then the steam is fed to a load device (15). After that, the steam is condensed into water and is preheated again. At least the feeding of the steam to the load device (15) takes place continuously. For the superheating of the steam, at least in the second phase (P2), the molten salt (6) is removed from the second tank vessel (8), fed to the superheater (14) and then fed to the first or a third tank vessel (7, 19). For evaporating the water, in the second phase (P2) the molten salt (6) is removed from the second or third tank vessel (8, 19), fed to the evaporator (13) and then fed to the first tank vessel (7). In the first phase (P1), the evaporation of the water takes place by means of the exhaust gases that are flowing through the second portion (9) and have already been directly or indirectly precooled.
摘要:
The invention relates to a method for indirectly exchanging heat between a salt melt (2, 2') as a first heat transfer medium, and at least one second heat transfer medium (15, 15'). According to the invention, at least one coiled heat-exchanger (5) is used for the purpose of exchanging heat between the salt melt (2, 2') and the second heat transfer medium (15, 15').
摘要:
A heat recovery system includes a storage tank for an intermediate heat transfer fluid and a heat exchanger for receiving an intermittent flow of heated stack gas from a reheat furnace, whereby heating values from the stack gas are transferred to the heat transfer fluid. The system includes a steam generator and the heating values acquired by the heat transfer fluid are used to generate and to superheat the steam. The heat transfer medium is controlled so that the flow of superheated steam produced is substantially steady. The heated stack gas may be used to preheat boiler feed water used for steam generation. The processes used are also described.
摘要:
Es ist ein Dampferzeuger (10) zur Erzeugung von überhitztem Hochdruckdampf vorgesehen mit einem Vorlagetank (14) zur Speicherung eines elektrisch leitfähigen kalten Flüssigsalzes, einer Heizeinrichtung (18) zum Aufheizen des kalten Flüssigsalzes, wobei die Heizeinrichtung (18) über das Flüssigsalz elektrisch miteinander verbindbare und von einer Wechselspannungsquelle betreibbare Elektroden (20) aufweist, einem Speichertank (24) zu Speicherung des von der Heizeinrichtung (18) aufgeheizten warmen Flüssigsalzes und einem in einem Strömungspfad des Flüssigsalzes von dem Speichertank (24) zum Vorlagetank (14) angeordneten Wärmetauscher (28) zum Vorwärmen, Verdampfen und/oder Überhitzen einer Flüssigkeit, insbesondere Wasser, innerhalb des Wärmetauschers (28) auf ein oberhalb einer Siedetemperatur der Flüssigkeit liegendes Hochtemperaturniveau. Durch die zeitliche Entkoppelung des Aufheizens des Flüssigsalzes und der Nutzung des Flüssigsalzes in dem Wärmetauscher (28) zur Erzeugung überhitzten Dampfes kann bei einem kostengünstigen Energieeinsatz ein hochenergetischer Dampf erzeugt werden, so dass eine kostengünstige Erzeugung hochenergetischen Dampfes ermöglicht ist.