Method and system for optimizing acetylene delivery
AssigneePraxair Technology, Inc.
InventorsWendell W. Isom, Carl J. Cantrelle, Jr., Razzack Syed
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Abstract
This invention relates to a method and system for increasing the utilization of the supply of acetylene from two acetylene sources. The flow is provided at a substantially constant delivery pressure to a point of use, such as a customer point of use. A portable apparatus is configured to operably connect to each of the two acetylene sources simultaneously and during operation automatically provide flow from one of the acetylene sources through various valving and piping assembled onto the portable apparatus followed by supply to a customer point of use.
Claims16
A system for maximizing utilization of supply of acetylene at a substantially constant delivery pressure to a point of use, comprising:
- a first acetylene source and a second acetylene source;
- the first acetylene source characterized by an initial source pressure comprising a first set of cylinders manifolded together to provide the supply of acetylene at the substantially constant delivery pressure;
- the second acetylene source comprising a second set of cylinders manifolded together to provide the supply of acetylene at the substantially constant pressure;
- each of the first set and the second set of cylinders comprising a porous filler with solvent selected from the group consisting of dimethylformaldehyde (DMF), acetone and N-methylpyrrolidone (NMP) into which pressurized acetylene is absorbed;
- the first acetylene source and the second acetylene source operably connected to a portable apparatus, said portable apparatus, comprising:
- a discharge manifold in fluid communication to the first acetylene source and the second acetylene source;
- and
- a controller to maximize the supply of acetylene from the first acetylene source, the controller having as an input, the delivery pressure of the acetylene, and the controller configured to switch supply to the second acetylene source when the controller determines the initial source pressure from the first acetylene source decreases by no more than 80% of the initial source pressure, and further wherein the controller is configured to divert from the second acetylene source back to the first acetylene source to resume supply of acetylene from the first acetylene source when determining the pressure of the first acetylene source is greater than the delivery pressure.
A portable on-site apparatus configured for automatically controlling supply of acetylene from multiple acetylene trailers, said portable-onsite apparatus comprising:
- a discharge manifold, said manifold adapted to interconnect to at least a first acetylene source and a second acetylene source to allow the supply of acetylene at a substantially constant delivery pressure to a point of use from either the first acetylene source or the second acetylene source;
- a controller to maximize the supply of the acetylene from the first acetylene source, the controller having as an input, the delivery pressure of the acetylene, and the controller configured to switch supply from the first acetylene source to the second acetylene source when the controller determines a pressure of the first acetylene source decreases by no greater than 80% of an initial source pressure of the first acetylene source, and further wherein the controller is configured to divert from the second acetylene source to the first acetylene source to resume supply of acetylene from the first acetylene source when determining the pressure of the first acetylene source is sufficient to supply the acetylene at the substantially constant delivery pressure;
- a modular platform characterized by a footprint having an area of no more than about 50 ft2, said modular platform configured to receive said controller and said discharge manifold.
Dependencies are inferred from the claim text.