摘要:
Bei einem Brennstoffzellenmodul (1) umfassend eine Brennstoffzelleneinheit (2) und eine Betriebsmittel-Versorgungseinheit (3) zur Versorgung der Brennstoffzelleneinheit (2) mit Betriebsmitteln, wobei die Brennstoffzelleneinheit (2) zumindest einen Stapel (5) von Brennstoffzellen (5') aufweist, wobei die Betriebsmittel-Versorgungseinheit (3) Stromanschlüsse (10) zum Abgreifen eines in den Brennstoffzellen (5') erzeugten Stromes von außerhalb des Brennstoffzellenmoduls (1) und Betriebsmittelanschlüsse (13) zur Zu- und Abfuhr von Betriebsmitteln zu bzw. von dem Brennstoffzellenmodul (2) aufweist, wird die Verfügbarkeit erfindungsgemäß dadurch weiter verbessert, dass die Brennstoffzelleneinheit (2) und die Betriebsmittel-versorgungseinheit (3) voneinander trennbar sind und dass das Brennstoffzellenmodul (1) eine am oder im Brennstoffzellenmodul (1) angeordnete Modulsteuerungs-und/oder -regelungseinrichtung (30) umfasst, die ausgebildet ist, mittels einer Abschaltprozedur die Brennstoffzelleneinheit (2) vor einem Trennen von der Betriebsmittel-Versorgungseinheit (3) in einen sicheren Zustand zu bringen und/oder mittels einer Einschaltprozedur die Brennstoffzelleneinheit (2) nach einem verbinden mit der Betriebsmittel-Versorgungseinheit (3) in Betrieb zu nehmen.
摘要:
A fuel cell block includes a plurality of channels and pipings and a resulting plurality of connecting and sealed points. Vibrations of the fuel cell block, particularly in vehicles, lead to stress and fatigue of sealed points. This causes a safety problem during operation of the fuel cell block. In order to solve the problem, the fuel cell block includes an end plate, an operating material channel that goes through the end plate and an operating material control device arranged at least partly in the operating material channel. The operating material control device is integrated at least partly into the end plate.
摘要:
The invention relates to a method for cleaning at least one inlet channel of a fuel cell of a fuel cell arrangement (2), wherein operating gas (10) and electric current are conducted through fuel cells (4) which are electrically connected in series. The cleaning can be achieved simply by blowing out contaminants from an inlet channel of a fuel cell (4) laid therewith if the operating gas supply is interrupted while the electric current is maintained and gas builds in the fuel cell (4).
摘要:
The invention relates to a fuel cell module (1) in which a number of series-connected fuel cells (2) form a fuel cell stack (4). The aim of the invention is to reliably ensure that there is no risk of the fuel cell stack (4) buckling, even where a comparatively large number of fuel cells (2) are grouped to form a fuel cell stack (4). To this end, the invention provides that the fuel cell stack (4) is surrounded by a stabilising casing (10), at least in a middle area as seen in the longitudinal direction.
摘要:
The invention relates to an electrochemical battery (1), in particular a fuel cell battery or an electrolytic cell battery comprising several electrolytic electrode units (3), a number of cooling cards (4) for respectively cooling at least one of the electrolytic electrode units (3) and at least one pressure chamber (6), which can be impinged by a pressure independently of the media supply of the electrolytic electrode units (3), for creating a contact pressure between components of the electrochemical battery that adjoin the pressure chamber (6). The pressure chamber(s) (6) adjoin(s) at least one of the cooling cards (4) and is/are at least partly delimited by said cooling card(s) (4).
摘要:
The invention relates to a fuel cell comprising a separator plate (1) that is positioned between electrolyte-electrode units (2), said plate consisting of two embossed (5) panels (3, 4) with contact surfaces (6) that rest against one another. A fluidic chamber (9) for a coolant is configured between the two panels (3, 4) and a fluidic chamber (7, 8) for a gas is configured between each panel (3, 4) and the respective adjacent electrolyte-electrode unit (2). The fluidic chamber (9) for the coolant comprises two sub-chambers (10, 11), each facing a respective panel (3, 4), and said coolant traverses the fluidic chamber exclusively in an alternate manner through the two sub-chambers (10, 11).
摘要:
The invention relates to a contact device (4) which is arranged in a terminal compartment (49) of a fuel cell stack (1) and is used to electrically contact the fuel cell stack (1). According to the invention, the surface of said contact device is at least partially provided with a hydrophobic surface layer (45), facilitating the removal of water, e.g. condensation water, from the terminal compartment (49) and thus from the fuel cell stack (1).
摘要:
The invention relates to a fuel cell arrangement (1) comprising a plurality of fuel cells arranged in a protective housing (4). The inventive arrangement is embodied in such a way that it has a long service life and is highly reliable. According to the invention, the inner area (6) enclosed by the housing (4) is connected on the gas side to a closed recirculation circuit (8). A plurality of gas purifying elements are connected advantageously to the recirculation circuit (8) and used to remove water-containing components or components which would otherwise be harmful for built-in elements inside the protective housing (4) from the gas flow (G) which is conducted inside the recirculation circuit (8).
摘要:
The invention relates to a planar, rectangular and water-cooled fuel cell (21) comprising a cooling element (1, 23) with a cooling chamber (3) through which cooling water flows during the operation of the fuel cell (21). Cooling water does not flow through said cooling chamber (3) in a homogeneous manner, normally resulting in local heating of said fuel cell (21) in regions through which the cooling water flows through less frequently. The aim of the invention is to solve said problem by producing a fuel cell (21) which is provided with a cooling element (1, 23) which comprises an essentially rectangular cooling chamber (3) with four corner regions, whereby the opening of a coolant flow (7a, 29a) is arranged in the first corner (5a), the opening of a first coolant flow (7b, 29b) is arranged in a second corner (5b) and a second coolant flow (7c, 29c) is disposed in a third corner (5c). The first coolant flow (7b, 29b) has a cross section Q1 on the narrowest point thereof and the second coolant flow (7c, 29c) has a cross section Q2 on the narrowest point thereof, the ratio of Q1/Q2 being 7 - 25.