摘要:
A heat exchanger includes a first tube bank having at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship. A second tube bank includes at least a first group of flattened tube segments and a second group of flattened tube segments extending longitudinally in spaced parallel relationship. The second tube bank is disposed behind the first tube bank with a leading edge of the second tube bank spaced from a trailing edge of the first tube bank. The first group of flattened tube segments is configured to receive a first fluid. The second group of flattened tube segments is configured to receive a second fluid. A fan provides an airflow across the first tube bank and the second tube bank sequentially.
摘要:
The invention relates to a heat exchanger (1), to a method for maintaining and to a method for producing a heat exchanger, to a method for operating a heat exchanger, to a power plant, in particular a solar thermal power plant, and to a method for generating electric power. According to the invention the heat exchanger (1) comprises a pipe system (30) for receiving a heat exchange medium, which is or can be subdivided at least into a first pipe bundle (31) and a second, replaceable pipe bundle (32). The first pipe bundle (31) is designed for the operation in a first temperature range over a first time period, and the second pipe bundle (32) is designed for the operation in a second temperature range over a second time period, the temperatures of the second temperature range being higher than the temperatures of the first temperature range and the second time period being shorter than the first time period. According to the invention the first temperature range is limited by a maximum temperature which is lower than the temperature of the material of the first pipe bundle (31) above which, with the given mechanical loading of the first pipe bundle (31), creeping of the material of the first pipe bundle (31) begins, and/or the second temperature range is limited by a maximum temperature, which is as high or higher than the temperature of the material of the second pipe bundle (32), above which, with the given mechanical loading of the second pipe bundle (32), creeping of the material of the second pipe bundle (32) begins.
摘要:
A heat exchange reactor comprising: reaction tubes for while allowing starting compound (A) to pass therethrough, effecting an exothermic reaction to thereby obtain product (B), and a reactor shell covering the surrounding area of the reaction tubes and having its interior divided into multiple regions along the direction of passage of the starting compound (A), each of which is filled with a heat medium, each of the regions adapted to carry out a heat exchange between the interior of reaction tube and the heat medium, characterized in that the heat exchange reactor is furnished with a heater capable of heating the heat medium charged in the upstreammost region among the regions resulting from the division independently from the heat medium charged in other regions.
摘要:
L'échangeur (WGC2 ; WGC3) comprend au moins deux refroidisseurs attenants (30, 40 ; 30', 40'), comportant chacun un faisceau (34) de tubes multicanaux allongés parcourus par le gaz réfrigérant, réunis par des boîtes collectrices d'extrémité (36, 38) reliées à un circuit de gaz réfrigérant de l'équipement de climatisation. Un carter (50) enferme le faisceau de tubes et forme un espace intérieur avec une entrée et une sortie de liquide caloporteur pour permettre à celui-ci de circuler entre les tubes du faisceau. Les deux carters possèdent une paroi commune (52) comportant au moins un orifice (60) de mise en communication des deux volumes intérieurs. Il est ainsi possible de réaliser un refroidisseur de gaz compact intégrant dans un même bloc deux étages échangeurs eau/gaz (WGC2, WGC3), ainsi qu'éventuellement un échangeur interne gaz/gaz du circuit de climatisation.
摘要:
A heat exchanger (10) comprising a precooler and reheater core (12) adjacent a chiller core (14), first heat transfer passages (52, 54) extending through both cores through which incoming air passes in a first direction, second heat transfer passages (56) extending through the chiller core through which coolant passes in heat exchange relationship with incoming air and perpendicular to the first direction, and third heat transfer passages (60) extending through the precooler and reheater core (12) through which cooled air from the chiller core passes in heat exchange relationship with the incoming air and perpendicular to the first direction. A manifold (40) contiguous with both cores conducts chilled air from the chiller core to the third set of heat transfer passages. Incoming air is chilled in the chiller core and thereafter exchanges heat with the incoming air in the precooler and reheater core to precool the incoming air to form water droplets and to raise the temperature of the chilled air.
摘要:
Die Erfindung betrifft eine Wärmetauscherbaueinheit in optimierter Bauweise zur Anordnung an oder in drehmomenterzeugenden oder drehmomentübertragenden Antriebskomponenten mit mindestens einem Wärmetauschermodul. Die Erfindung ist dadurch gekennzeichnet, dass die Geometrie der Außenabmessung der Wärmetauscherbaueinheit derart gewählt ist, dass diese sich in radialer Richtung wenigstens über einen Teilbereich in Umfangsrichtung um einen An- oder Abtrieb erstrecken.
摘要:
Die Erfindung betrifft eine Wärmetauscherbaueinheit in optimierter Bauweise zur Anordnung an oder in drehmomenterzeugenden oder drehmomentübertragenden Antriebskomponenten mit mindestens einem Wärmetauschermodul. Die Erfindung ist dadurch gekennzeichnet, dass die Geometrie der Außenabmessung der Wärmetauscherbaueinheit derart gewählt ist, dass diese sich in radialer Richtung wenigstens über einen Teilbereich in Umfangsrichtung um einen An- oder Abtrieb erstrecken.