Abstract:
A high-pressure tank in which the sealing ability and pressure-proof strength at a mouth portion are prevented from being lower by a high pressure within the tank, wherein the mouth portion 2 projects into the inside of the tank, and internal threads are formed on an inner peripheral surface of the mouth portion, and a thread member is threadedly engaged with the internal threads. Further, a seal member is provided between the mouth portion and the thread portion, and is disposed adjacent to the inner peripheral surface of the mouth portion adjacent to an inner end thereof disposed within the tank. A high pressure within the tank acts on an outer peripheral surface of the mouth portion while the atmospheric pressure acts on the inner peripheral surface of the mouth portion, so that the mouth portion is compressed radially inwardly, thereby preventing the loosening of the tightened seal member.
Abstract:
The invention provides a lightweight, temperature-resistant debris shield suitable for used within a closed vessel. The invention has no small parts, and can be readily assembled and disassembled in a confined space without tools after passing through a tight passage such as a pressure vessel manway.
Abstract:
A station for dispensing liquid natural gas (LNG) and hydrogen to vehicles features a bulk tank which receives LNG from a tanker truck. LNG from the bulk tank may be directed to either an LNG conditioning and dispensing portion of the station or a hydrogen production and dispensing portion of the station. The latter includes a heat exchanger for warming the LNG and a steam reformer which produces hydrogen and carbon dioxide from the warmed LNG. The hydrogen is compressed and then either stored or dispensed to a vehicle powered by a fuel cell. The carbon dioxide may optionally be further processed and stored for future use.
Abstract:
A method and apparatus for extending the useful operating life of a low-pressure gas bottle for use in a semiconductor device manufacturing process. As the gas bottle is detected to be approaching an empty condition, the gas in the bottle is safely heated in a manner that causes gas molecules to be released from an absorbent material used in the bottle. In a preferred embodiment, a thermo-pressurizer, including a heating blanket that surrounds the gas bottle and a temperature controller coupled to the heating blanket, causes the pressure in the gas bottle to be elevated, thereby releasing gas molecules from the absorbent material.
Abstract:
A stabilizing caddy for a pressurized gas container includes a base and a housing upstanding from the base. The housing has a cavity defined by a continuous side wall with an upper rim distant from the base and a longitudinal axis extending transverse of the base. The continuous side wall of the housing cavity is uniformly snugly supportively receptive of an outer surface of the pressurized gas container when the pressurized gas container is slidably received therein such that a longitudinal axis of the gas container is substantially parallel to the longitudinal axis of the cavity. The dimension of the housing at the upper rim transverse of the longitudinal axis is substantially less than that of the base. In one embodiment, the housing is substantially conical in shape. In other embodiments, the housing may alternatively be of solid material or of thin wall construction. In yet another embodiment, the housing includes an upstanding tubular member encompassing the cavity, the base being an integral planar plate extending transverse of the longitudinal axis of the cavity and including a plurality of circumferentially spaced rib members lying in planes substantially parallel to the longitudinal axis of the cavity integral with and extending between the tubular member and the planar plate.
Abstract:
A compressed natural gas (CNG) refueling system has banks of cylinders containing CNG, a hydraulic fluid reservoir containing a hydraulic fluid which does not readily mix with CNG, and reversible flow valves. Each cylinder has a fitting installed in an opening at one end. The fitting contains a hydraulic fluid port and a gas port. The other end of each cylinder is closed. Hydraulic fluid is pumped from the reservoir into each cylinder through the hydraulic fluid port. Inside each cylinder, the hydraulic fluid directly contacts the CNG, forcing the CNG out through the gas port. When a sensor detects that the cylinders are substantially drained of CNG, the reversible flow valves will reverse orientation, allowing the hydraulic fluid to flow back into the reservoir.
Abstract:
A stabilizing caddy for a pressurized gas container includes a base and a housing upstanding from the base. The housing has a cavity defined by a continuous side wall with an upper rim distant from the base and a longitudinal axis extending transverse of the base. The continuous side wall of the housing cavity is uniformly snugly supportively receptive of an outer surface of the pressurized gas container when the pressurized gas container is slidably received therein such that a longitudinal axis of the gas container is substantially parallel to the longitudinal axis of the cavity. The dimension of the housing at the upper rim transverse of the longitudinal axis is substantially less than that of the base. In one embodiment, the housing is substantially conical in shape. In other embodiments, the housing may alternatively be of solid material or of thin wall construction. In yet another embodiment, the housing includes an upstanding tubular member encompassing the cavity, the base being an integral planar plate extending transverse of the longitudinal axis of the cavity and including a plurality of circumferentially spaced rib members lying in planes substantially parallel to the longitudinal axis of the cavity integral with and extending between the tubular member and the planar plate.
Abstract:
Process components, containers, and pipes are provided that are constructed from ultra-high strength, low alloy steels containing less than 9 wt % nickel and having tensile strengths greater than 830 MPa (120 ksi) and DBTTs lower than about −73° C. (−100° F.).
Abstract:
This invention concerns a shipping crate, comprising: a base having three sides and one or more doors attached thereto, wheels attached to the base, a top attached to the sides having a tank hole, wherein the base, sides, and doors have been attached to provide a sealed compartment. This invention also concerns a chemical delivery cabinet, comprising: a base, three sides, and one or more doors attached to one or more sides, a valve manifold affixed to an inner wall of the cabinet, process control instrumentation which connects to and controls the valve manifold, wherein at least one of the doors has a touch control pad mounted thereon. This invention is also a chemical refill system, comprising a tank housed in a crate, wherein the crate comprises a base having three sides and one or more doors attached thereto, wheels attached to the base, a top attached to the sides having a tank hole, wherein the top has been fastened to the sides such that the tank hole fits over a vertical sheath on the tank, wherein the base, sides, and doors have been attached to provide a sealed compartment. In one embodiment of this invention, the system is been placed in the chemical delivery cabinet.