Abrégé

The invention provides a steam water separator, comprising: - a vessel having a vessel wall delimiting an interior of the vessel, wherein the vessel is configured to contain steam in a steam zone and water in a water zone in the interior of the vessel, - at least one inlet for introducing steam and/or water in the vessel, and - at least one steam outlet for taking steam out of the vessel, - at least one water outlet for taking water out of the vessel, characterized in that the separator comprises a wetting device configured to wet in the steam zone an inner surface of the vessel wall.

Classes IPC  ?

• F22B 37/26 - Dispositifs séparateurs de vapeur
• F22B 1/28 - Méthodes de production de vapeur caractérisées par le genre de chauffage dans des chaudières chauffées électriquement

Abrégé

Solar receiver (10) comprising at least two receiver panels (12) having a common outer front surface for receiving incident solar radiation from a field of mirrors (50). Said receiver panels comprise an array of side by side arranged heat exchange tubes (11), which have a substantially straight main portion (11.1) which extend in an upwards longitudinal direction and an inwards extending portion (11.2/11.3) for a connection to an input or output header (17. l/l7.2) for respectively distributing or collecting fluid to or from the heat exchange tubes (11), said receiver panels (12) are spaced apart in the upwards direction a a distance of Z cm The solar receiver is improved in that the header is spaced behind the front surface at a distance of A cm, wherein the quotient of Z and A Z/A, at the most equals the quotient of a vertical V and a horizontal H distance, V/H, from the header to a most far positioned mirror.

Classes IPC  ?

• F24J 2/07 - Récepteurs à haute température, p.ex. pour centrales solaires

Abrégé

A steam generation system comprises a main steam generator and a back-up steam generator (20) which are both in fluid communication with a super heater (3) for superheating the generated steam. The superheater comprises a main heat source (6) for heating up a flow of heating gas. A back-up evaporator (2) is provided as a back-up steam generator for evaporating supplied water into steam. The back-up evaporator is connected in parallel to the main steam generator. An auxiliary heat source is provided for heating up the back-up evaporator. By controlling the auxiliary heat source (9), it is possible to supply more or less heat energy to the back-up evaporator to compensate for fluctuations in steam production of the main steam generator. The back-up evaporator is positioned away from the flow of heating gasses departing from the main heat source.

Classes IPC  ?

• F01K 3/24 - Ensembles fonctionnels caractérisés par l'emploi d'accumulateurs de vapeur ou de chaleur ou bien de réchauffeurs intermédiaires de vapeur comportant des réchauffeurs avec chauffage par réchauffeurs séparés
• F01K 13/02 - Commande, p. ex. arrêt ou démarrage

Abrégé

The present invention relates to a steam generator comprising a substantially- horizontal gas conduit (1) for guiding a heating gas flow and a single pass evaporator unit (3). The evaporator unit has at least one heat transfer section which is positioned at least partially in the heating gas flow (2). The heat transfer section comprises substantially vertically extending heat transfer tubes (22), which are at the lower region in fluid communication with an inlet conduit (7) and at the upper region in fluid communication with an outlet conduit (10). A flow medium is supplied to the inlet conduit (7). The invention is characterized in that the evaporator unit comprises a separator (11) and a downcomer conduit (12).

Classes IPC  ?

• F22B 37/14 - Canalisations principales d'alimentation, p. ex. colonne montante, colonne descendante, en relation avec les chaudières à tubes d'eau
• F22B 37/26 - Dispositifs séparateurs de vapeur
• F22B 29/06 - Chaudières à vapeur du type à circulation forcée du type à circulation ouverte, c.-à-d. composées de tubes admettant de l'eau à une extrémité et dégageant de la vapeur surchauffée à l'autre extrémité