摘要:
A cryogenic chamber comprising an outer vacuum vessel (9), an inner cryogen vessel (11), a turret (40) housing a neck tube (8) itself providing external access to the inner cryogen vessel (11), and a pulse tube refrigerator (20) itself comprising at least one pulse tube and at least one regenerator tube. The pulse tube refrigerator is located within a vacuum contained between the outer vacuum vessel (9) and the inner cryogen vessel (11) and the pulse tube refrigerator (20) and the neck tube (8) share a single turret (40). The cooling stage(s) (6, 7) of the pulse tube refrigerator (20) is/are rigidly mechanically connected to the neck tube (8) by highly conductive thermal links. The pulse tube(s) and regenerator tube(s) are displaced away from the neck tube and from each other.
摘要:
A flexible pressure vessel is constructed from at least one pair of upper and mating lower dome shaped cell portions. The dome portions are molded from sheets of resilient material and joined together by radio frequency welding or high-strength adhesives. Upper and lower passageway portions extend outwardly from each cell portion to the surrounding sheet material. When the cell portions are joined the passageway portions are joined to form a passageway for connection to a valve or another cell. Upper and lower rings surround the upper and lower cell portions to provide reinforcement for the cells. First and second blankets of heavy-duty fiber reinforced material are attached over the upper and lower cell portions and stitched in place with heavy-duty stitching extending through the resilient material surrounding the cell portions. Cell shaped sponges impregnated with absorbent materials are encased in liquid and gas impermeable plastic tubing and inserted into the cells prior to joining of the cell portions. Heat-reflecting plastic film or metal foil is inserted between blankets and the cell portions. The heavy duty stitching is high-pressure loop and lock braiding. The passageway has a cross-section of between 0.050 and 0.100 inches. An apparatus and method are described for constructing the flexible pressure vessel.
摘要:
A differential pressure gauge for a cryogenic storage tank provides onboard entry, by an operator, of tank dimensions, tank orientation stratification coefficient, and the type of liquid stored within the tank. A differential pressure sensor supplies a signal corresponding to a differential pressure. A pressure sensor supplies a signal corresponding to the head pressure. The gauge uses the information supplied by an operator, combined with stored formulas and liquid characteristics, to perform real-time liquid volume computations. The liquid volume may be displayed on the gauge itself or may be transmitted via telemetry to an external device.
摘要:
A tank for cryogenic liquid fuel includes a tank with inner and outer shells. A support beam with its ends supported in endwalls of the outer shell extends through a central sleeve in the inner shell. Raised formations on the support beam engage the interior of the sleeve to support the inner shell within the outer shell. The sealed space formed between the shells inhibits heat conduction into cryogenic liquid fuel held in the inner shell. Pins extending transversely through the support beam prevent turning of the support beam in its endwall supports and turning of inner shell about the support beam. Getter material and radiation shielding placed about the support beam within the sleeve of the inner shell afford additional impediments to heat transfer into the inner shell.
摘要:
A differential pressure gauge for a cryogenic storage tank provides onboard entry, by an operator, of tank dimensions, tank orientation stratification coefficient, and the type of liquid stored within the tank. A differential pressure sensor supplies a signal corresponding to a differential pressure. A pressure sensor supplies a signal corresponding to the head pressure. The gauge uses the information supplied by an operator, combined with stored formulas and liquid characteristics, to perform real-time liquid volume computations. The liquid volume may be displayed on the gauge itself or may be transmitted via telemetry to an external device.
摘要:
A differential pressure gauge for a cryogenic storage tank provides onboard entry, by an operator, of tank dimensions, tank orientation stratification coefficient, and the type of liquid stored within the tank. A differential pressure sensor supplies a signal corresponding to a differential pressure. A pressure sensor supplies a signal corresponding to the head pressure. The gauge uses the information supplied by an operator, combined with stored formulas and liquid characteristics, to perform real-time liquid volume computations. The liquid volume may be displayed on the gauge itself or may be transmitted via telemetry to an external device.
摘要:
A utility belt includes a gas storage vessel for providing a portable and ambulatory supply of oxygen for the person wearing the belt or a person being attended to by the person wearing the belt. In particular, the utility belt provides a portable supply of pressurized gas while it is suspended from the body of a user, with a plurality of item holders, such as implement holsters and utility pouches, suspended from the utility belt. The supply of pressurized gas is provided by a gas storage vessel carried on the utility belt. The gas storage vessel is formed from a plurality of polymeric hollow chamber having either an ellipsoidal or spherical shape and interconnected by a plurality of relatively narrow conduit sections disposed between consecutive ones of the chambers. The gas storage vessel includes a reinforcing filament wrapped around the interconnected chambers and interconnecting conduit sections to limit radial expansion of the chambers and conduit sections when filled with a fluid under pressure. The container system further includes an outlet valve/regulator attached to the gas storage vessel for controlling fluid flow into and out of the gas storage vessel and a gas delivery system for delivering gas from the gas storage vessel to a user in a breathable manner.
摘要:
The present invention provides a low cost coolant container that is easy to produce without decreasing its ability to maintain a coolant. The coolant container 1 comprises an outer container 11 and an inner container 12 wherein the cylindrical members 111 and 121 and the plate members 112 and 122 of the outer container 11 and the inner container 12 are engaged at the peripheral end such that even if an external force acts on the flat surface of the plate members 112 and 122 the stopping means 111a and 121a of the engaging portions A and B prevent the plate members 112 and 122 from sinking toward the hollow portion 13 side by supporting the plate members 112 and 122 and resisting the external force and as a result the container has the required structural strength and its ability to maintain a coolant is preserved. Moreover, because cylindrical members 111 and 121 and plate members 112 and 122 with simple shapes are used, it is not necessary to strengthen them by screwing the plate members 112 and 122 into the cylindrical members 111 and 121, and these material and processing costs can be avoided and a low cost product can be provided.
摘要:
Systems are provided for vehicular, land-based distribution of pressurized liquefied natural gas at a pressure of about 1035 kPa (150 psia) to about 7590 kPa (1100 psia) and at a temperature of about -123.degree. C. (-190.degree. F.) to about -62.degree. C. (-80.degree. F.). The systems include at least one container that is constructed from an ultra-high strength, low alloy steel containing less than 9 wt % nickel and having a tensile strength greater than 830 MPa (120 ksi) and a DBTT lower than about -73.degree. C. (-100.degree. F.).
摘要:
A multi-layer insulated tank for storing a liquid propellant. A tank is coated with a low thermal conductive gas expanded foam. The foam coated tank is encased in a plastic bag and is maintained under a low thermal conductive gas until just before the tank is charged with the liquid propellant. Just prior to charging the tank with cryogen, the low thermal conductive gas is replaced by helium or nitrogen depending upon the cryogen to prevent condensation of water vapor and/or purge gas on the outer surface of the tank.