摘要:
A sealing structure includes a first connector body having a groove, a second connector body encompassing the first connector body, an O-ring partially received in the groove of the first connector body, and a variable back-up ring partially received in the groove of the first connector body and holding the O-ring. The variable back-up ring is deformable in a radial direction depending on a magnitude of a fluid pressure applied between the first connector body and the second connector body.
摘要:
A sealing arrangement is provided for an electrochemical cell. The sealing arrangement includes a metallic plate (7) and a seal (18, 19) which is arranged thereon and which forms at least one closed sealing ring, which is arranged on the plate (7). A peripheral inner support structure (20, 22) supports the seal (18, 19) to the inside and an outer support structure (21, 23) supports the seal (18, 19) to the outside. The support structures are formed of sintered metal and are materially connected to the plate (7).
摘要:
An assembly includes an SOEC/SOFC-type solid oxide stack, a clamping system for clamping the stack, including at least two clamping rods that can be used to assemble upper and lower clamping plates, and a coupling system for high-temperature fluid-tight coupling of the stack to a heating system for supplying and discharging gas. The coupling system includes a collector with collection ducts for supplying and discharging gas, each provided with a collecting port positioned facing a corresponding communication port of at least one of the upper and lower clamping plates, and seals each placed between a collecting port and a corresponding communication port.
摘要:
The purpose of this invention is to make it easy to handle all-rubber gaskets. To achieve this purpose, a gasket is characterized in that a gasket body of only rubber is combined with a carrier film that is made from a resin film to hold the gasket body in a non-adhesive state. A three-dimensional portion having a shape that is deformed along the external shape of the gasket body is provided at a position where the gasket body and a plane of the carrier film overlap, and a portion of the gasket body is contained in the three-dimensional section. The gasket body is used as a gasket for fuel cells incorporated into a fuel cell stack.
摘要:
A fuel cell separator with a gasket for improved sealing is provided. The fuel cell separator with a gasket is capable of improving the contact pressure of a cooling surface-side airtight line by additionally forming a sub-airtight line in a region in which a gas aperture is not formed at a cooling surface-side position that corresponds to the cooling surface-side airtight line of the separator.
摘要:
A channel plate assembly of a stack for a fuel cell and a method of manufacturing the channel plate assembly. The channel plate assembly of a stack for a fuel cell includes a bridge piece disposed on a channel plate to entirely surround a manifold, and a gasket disposed on the channel plate to cover the bridge piece, wherein the channel plate assembly is manufactured in an integrated fashion.
摘要:
A cell stack has frames having lines of four apertures (41) at each end. In the stack, the apertures form four ducts at each end of the side of the stack, with the ducts extending from end to end of the stack for electrolyte flow therethrough. The apertures in the transfer frames have no passages connected to them. The eight apertures (41) in the passage frame are surrounded in pairs by four grooves (44) and 0-rings (45), dividing them into a pair for anolyte feed, a pair for anolyte return, a pair for catholyte feed and a pair for catholyte return. The stack is divided into opposite end sections (46, 47). Only one of each pair is connected to a local feed or return flow passage, contained within the 0-rings. The other is connected in the other section. The anolyte feed and return passages (51,52,55,56) lead from their apertures to respective openings (61) from the side (4) of each passage frame to its plain face (18). Here a distribution rebate (62), with spreading features (63), is provided to distribute/collect electrolyte to the graphite felt in the anolyte half cell. The result is that there is no electrical connection via the electrolyte in the ducts between cells at opposite ends of the stack. The inner ones of the ducts connect the cells at opposite ends of the section 46 and the outer ones the cells at opposite ends of the ducts (47). Thus a shunt current paths still exist, but at only half the voltage to the entire stack.
摘要:
A hydrogen electrolysis apparatus includes a stack of unit cells each having a membrane electrode assembly sandwiched between an anode separator and a cathode separator. The anode separator has a first flow field which is supplied with water, and the cathode separator has a second flow field which produces high-pressure hydrogen through an electrolysis of the water. The cathode separator also has a first seal groove defined therein which extends around the second flow field and a first seal member inserted in the first seal groove. The first seal groove and the second flow field are held in fluid communication with each other through passageways. The passageways keep the first seal groove and the second flow field in direct fluid communication with each other in bypassing relation to the boundary between the cathode separator and a solid polymer electrolyte membrane.
摘要:
A hydrogen electrolysis apparatus includes a stack of unit cells each having a membrane electrode assembly sandwiched between an anode separator and a cathode separator. The anode separator has a first flow field which is supplied with water, and the cathode separator has a second flow field which produces high-pressure hydrogen through an electrolysis of the water. The cathode separator also has a first seal groove defined therein which extends around the second flow field and a first seal member inserted in the first seal groove. The first seal groove and the second flow field are held in fluid communication with each other through passageways. The passageways keep the first seal groove and the second flow field in direct fluid communication with each other in bypassing relation to the boundary between the cathode separator and a solid polymer electrolyte membrane.
摘要:
A module for a fuel cell arrangement is provided, having plates which are configured in the form of a stack, at least two plates being partially joined to one another by a sealing element, at least one further seal being configured between the plates.