摘要:
The invention aims at improving a conventional diver tank (1) comprising a compressed gas tank (2) for receiving an oxygen-containing diving gas (3) and an armature (5) for the removal of the diving gas (3) by providing high mechanical resistance, corrosion resistance and operational safety. According to the invention, this is achieved in that the compressed gas tank (2) is made of special steel. In order to produce said diving tank (1), a tubular compressed gas container(2) is sealed on both ends and equipped with a discharge armature (5) for a diving gas (3). According to the invention, the compressed gas container (2) is formed by plastic cryoforming a hollow cylindrical blank made of special steel.
摘要:
Herkömmliche Gasflaschen für Brenngas oder Motorgas bestehen aus Stahl und haben damit ein beträchtliches Gewicht. Die Erfindung sieht vor, daß die Gasflasche aus zwei identischen Gasflaschen-Halbschalen zusammengesetzt ist, die aus einer Aluminium-Legierung bestehen und im mehrstufigen Tiefziehverfahren aus einem Blech mit einer Wandstärke von höchstens 6 mm in einem Arbeitsgang ohne Zwischenglühen hergestellt sind. Das Verhältnis von Höhe zu Durchmesser der Halbschalen beträgt etwa 1 : 1 bis 3 : 1. Die Gasflasche ist leicht und verhältnismäßig billig herstellbar.
摘要:
Process components (12), containers (15, 11), and pipes are provided that are constructed from ultra-high strengh, low alloy steels containing less than 9 wt.% mickel and having tensile strengths greater than 830 MPa (120 ksi) and DBTTs lower than about -73 °C (-100 °F).
摘要:
Welding methods are provided for use in joining ultra-high strength, low alloy steels to produce weldments having tensile strengths greater than about 900 MPa (130 ksi) with weld metals having fracture toughness suitable for cryogenic applications according to known principles of fracture mechanics.
摘要:
Fuel storage and delivery systems are provided for storing pressurized liquefied natural gas (PLNG) fuel at a pressure of about 1035 kPa (150 psia) to about 7590 kPa (1100 psia) and at a temperature of about -123 °C (-190 °F) to about -62 °C (-80 °F) and delivering vaporized PLNG fuel on demand for combustion in an engine (24). The fuel storage and delivery systems have fuel storage containers (10) that are constructed from 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 °C (-100 °F). While not limited thereto, the present invention is especially useful for automobiles, buses, trucks and other vehicles with engines (24) designed to operate through combustion of natural gas.
摘要:
This invention relates to a process for liquefying a pressurized gas stream rich in methane in which the liquefication of the gas stream occurs in a heat exchanger being cooled by a closed-loop multi-component refrigeration system to produce a methane-rich liquid product having a temperature above about -112 DEG C. (-170 DEG F.) and a pressure sufficient for the liquid product to be at or below its bubble point. The liquefied gas product is then introduced to a storage means at a temperature above about -112 DEG C. (-170 DEG F.).
摘要:
Pressure vessel made of aluminium for transport and storage of fluids. The vessel comprises two mainly semi-spherical, forged parts (2), that are joined together along their periphery by means of plasma welding. Each semi-spherical part is provided with a boss (4) that is formed under the forging operation, one or both of the bosses may be provided with passing bores (5) having internal threads for attaching a valve/valves thereto. Further, one or both of the bosses may be equipped with external threads for the attachment of protective caps (8), or one protective cap and a support leg.
摘要:
Bei einem Verfahren zum Herstellen und/oder Befüllen einer Zweikammer-Druckpackung (R) aus einem Außenbehälter (1) mit einer Dosenwand (2), einem Boden (3) und einer Ventilöffnung (4) sowie einem Beutel (6) mit Beutelboden (9) in dem Außenbehälter (1) zur Aufnahme eines Produktes umschließen Außenbehälter (1) und Beutel (6) einen Raum (5) zur Aufnahme eines Gases. Dabei wird der Raum (5) zwischen Außenbehälter (1) und Beutel (6) vor dem Befüllen des Beutels (6) mit dem Produkt mit dem Gas befüllt.
摘要:
Bei einem Verfahren zum Herstellen und/oder Befüllen einer Zweikammer-Druckpackung (R) aus einem Außenbehälter (1) mit einer Dosenwand (2), einem Boden (3) und einer Ventilöffnung (4) sowie einem Beutel (6) mit Beutelboden (9) in dem Außenbehälter (1) zur Aufnahme eines Produktes umschließen Außenbehälter (1) und Beutel (6) einen Raum (5) zur Aufnahme eines Gases. Dabei wird der Raum (5) zwischen Außenbehälter (1) und Beutel (6) vor dem Befüllen des Beutels (6) mit dem Produkt mit dem Gas befüllt.
摘要:
A compressed gas storage tank (10) is fabricated to conform to the dimensions of a convenient and/or available space, such as under the floor of an automobile. The tank comprises a shell (11-16) having at least a portion (11,12,14,15) fabricated from a superplastically formable material. The superplastic material is bonded to internal structural support members (17,18) and the remaining portions (16) of the shell. Bonding may be achieved by known methods such as welding and/or diffusion bonding. The internal support members, which need not comprise superplastic material, are positioned internally to provide optimum resistance to gas pressure hoop stresses. In contrast to a thick-walled cylinder, the tank of the present invention may be formed into an irregular shape allowing the tank to fit, for example, under a large fraction of the floor of an automobile by conforming to the available space. The relatively low gas containment efficiency of such an irregular shape is reinforced by the strength and toughness of the shell material, the internal trusses, and stiffening beads or ribs (13) that together constrain the hoop stresses caused by the compressed gas.