Abstract:
A barrier layer arrangement for tank systems includes at least one layer made of a material that has anisotropic properties. The anisotropic properties can be specifically adjusted by way of the design of the layer and/or the material parameters.
Abstract:
A cover is provided for a removable pressure vessel lid and the cover has a peripheral flange extending over the interface of the lid and pressure vessel to direct escaping pressurized fluid away from the operator in the event of a seal leak or residual pressure upon release of the lid fasteners. The fasteners such as swing bolts engage slots in the lid flange; and, flow shields are provided on the fasteners to redirect fluid escaping at the slots and about the fasteners.
Abstract:
Cryogenic tank insulation system comprising blocks of insulating materials placed, at low temperature, so as to be essentially touching on one face of the structure of said tank, the blocks being placed between said face of the structure and an impervious deformable wall which defines at least one portion of the volume where the cryogenic fluid is stored and is actuated by return means for returning it to the face of the structure, characterized in that a first portion of the blocks is at ambient temperature in contact with the face of the structure and away from the impervious deformable wall, a second portion of the blocks being at ambient temperature, in contact with the impervious deformable wall and away from the face of the structure, the edges of the blocks of the first portion; and those of the second portion being, at ambient temperature, in partial contact and having complementary shapes so as to form an essentially continuous layer of insulating material at low temperature.
Abstract:
A system and method for dispensing subcooled CO2 liquid includes a vacuum insulated bulk tank containing a supply of the liquid CO2. A pressure builder having an inlet in communication with a bottom portion of the bulk tank and an outlet in communication with a top portion of the bulk tank vaporizes liquid from the bulk tank and delivers the resulting gas to the top portion of the tank so as to pressurize it. A baffle is positioned within the bulk tank. Below the baffle, a refrigeration system is connected to the heat exchanger coil so that a refrigerant fluid is supplied to and received from the heat exchanger coil so that the liquid below the baffle is subcooled and the liquid above the baffle is stratified. A liquid fill line is in communication with the interior of the bulk tank via a fill line opening that is positioned above the baffle. A liquid feed line is in communication with a bottom portion of the interior of the bulk tank so that subcooled liquid may be dispensed.
Abstract:
A pressure tank includes a metallic vessel, a plastic liner received in the metallic vessel, a flexible diaphragm, two connectors and a nozzle coupled to the nipples respectively. The metallic vessel includes upper and lower shells. The upper shell defines a first planar area on a side thereof and a second planar area on a top thereof. The lower shell defines a third planar area therebottom. The flexible diaphragm divides the metallic vessel into a storage space and a pneumatic room. Each of the connectors includes a nipple and an anti-leak assembly. The nipples of the connectors are mounted on the side and top of the upper shell respectively and are in communication with the storage space. The two anti-leak assemblies provide leakproof connection between the nipples and the plastic liner. Additionally, the nozzle is mounted on the third planar area to be in communication with the pneumatic room.
Abstract:
In the case of a pressure container comprising a plastic container core (2) for storing a fluid under pressure, a support sheath (3) surrounding the plastic container core (2), a connection piece (4) formed at the plastic container core (2) and having an opening (5) for filling in and discharging the fluid from the plastic container core (2), a connection body (6) arranged radially outside the connection piece (4) and having a bore (7), a valve body (8) having a fluid duct (9) for conducting the fluid in and out through the opening (5) in the connection piece (4), wherein the valve body (8) is arranged in the opening (5) of the connection piece (4) and in the bore (7) of the connection body (6), preferably at least one annular groove (10) formed radially outside in the valve body (8), one first seal (11) being arranged in each of the at least one radially outside annular groove (10), so that the at least one first seal (11) rests radially inside on the connection piece (4), the valve body (8) is to be attached reliably in a fluid-tight manner to the connection piece (4) of the plastic container core (2) and the valve body (8) and the connection body (6) have a small constructional height.This object is achieved by the fact that the connection body (6) has at least one radially inside annular groove (12) and that a second seal (13) is arranged in each of the at least one radially inside annular groove (12), so that the at least one second seal (13) rests radially outside on the connection piece (4).
Abstract:
A bundle trailer for containers including (i) a supporting frame on which a plurality of bundles are located; (ii) a plurality of bundles, each bundle comprising: a bundle frame, a plurality of containers containing a chemical, and at least one bundle value for controlling delivery of the chemical in the containers; (iii) at least one trailer valve; and (iv) at least one clamp for fixing the bundle is disclosed. The bundle trailer is capable of delivering high purity hygroscopic, corrosive chemicals, such as elemental fluorine and mixtures thereof, with good flexibility, high safety, and low cost.
Abstract:
Apparatus for heat exchange in a high pressure gas storage tank wherein a heat absorbent gas media circulates within the tank and absorbs or radiates the heat resulting from compression and expansion of gas stored in the on board tank depending upon the mode of operation of the vehicle, the gas media is circulated through a heat exchange unit external to the tank whereby heat is radiated to or absorbed from an environment external to the tank, and an in situ heat exchange device installed within the tank absorbs or radiates the heat from or to the gas stored in the tank as a result of heat exchange through a unit external to the tank.
Abstract:
A hydrogen fuel automobile has a heat medium passage through which a heat medium which can exchange heat with a drive portion and can be supplied to a heat medium pipe for a hydrogen tank flows. An air cooling apparatus has a compressor for compressing a refrigerant gas, a condenser, an evaporator and a refrigerant circuit. The hydrogen fuel automobile is provided with a bypass passage which branches from the refrigerant circuit so that expanded refrigerant liquid detours the evaporator so as to be drawn into the compressor. A switch portion can switch between a state where the refrigerant liquid passes through the evaporator so as to be drawn into the compressor and a state where the refrigerant liquid detours the evaporator so as to flow through the bypass passage. The hydrogen storage material cooling portion cools the hydrogen storage material in the hydrogen tank using the refrigerant liquid that flows through the bypass passage. Accordingly, the time for filling the tank with hydrogen can be made short in comparison with a case where the radiator and the fan mounted in the automobile are used to cool the hydrogen tank when the tank is being filled with hydrogen.
Abstract:
Methods of passivating a metal surface are described, the methods comprising the steps of exposing the metal surface to a silicon-containing passivation material, evacuating the metal surface, exposing the treated surface to a gas composition, having a concentration of reactive gas that is greater than an intended reactive gas concentration of gas to be transported by the metal surface, evacuating the metal surface to remove substantially all of the gas composition to enable maintenance of an increased shelf-life, low concentration reactive gas at an intended concentration, and exposing the metal surface to the reactive gas at the intended reactive gas concentration. Manufactured products, high stability fluids, and methods of making same are also described.