摘要:
An air separation process using pressure swing adsorption techniques, for providing high purity oxygen. Two sections are employed one comprising beds of molecular sieve carbon and the other comprising beds of zeolite molecular sieve. Air is fed to a first of the sections which provides an oxygen-rich gas stream as feedstock for the next section where further enrichment takes place. The zeolite sieve section serves to effect a separation as between oxygen and nitrogen while the carbon sieve section serves to effect a separation as between oxygen and argon and the processes performed at each section are integrated in such a manner as to minimize power consumption and make use of gas recycled from the second section to the first in addition to the flow of gas from the first section to the second.
摘要:
A compressed gas mixture, for example air, is passed through one of beds 12 and 14 of adsorbent that selectively adsorbs oxygen from the air. Unadsorbed nitrogen-enriched gas flows into a buffer vessel 28, from which product gas is withdrawn through pipeline 30. While one of the beds 12 and 14 is adsorbing oxygen for air the other is being regenerated, and during this period the communication between the beds is denied. At the end of a chosen period of time the beds are placed in communication with one another by opening valves 54 and 56. Then the bed that was previously being regenerated is placed in communication with the source of compressed air and the other bed regenerated. The period of intercommunication between the beds lasts for as long as it takes the volume of product gas as measured by an integrating flow meter 31 from the start of the preceding adsorption step to reach a chosen value. The apparatus is able to supply nitrogen of a chosen purity at a variable flow rate.
摘要:
A fluid supply system includes a pressure-swing adsorption plant e.g. for supplying oxygen-rich gas to an activated sludge reactor in a sewage works. The product gas from the plant is supplied to the utilization apparatus by a compressor at a rate dependent on the demand for the gas, while waste gas is desorbed from the plant by a vacuum pump. When using the plant to separate oxygen from an air feedstock the major proportion of the power consumed by the plant is represented by the vacuum pump, which has to impell substantially greater volumes of gas than the product compressor. To economize on the power consumed by the plant, the rate of delivery of the vacuum pump is controlled by means sensitive to the demand of the utilization apparatus for product gas, so that a reduction in the demand from the product compressor leads to a reduction in the power consumption of the vacuum pump.
摘要:
A method of forming a container from a blank of sheet material using a machine is provided. The blank includes a bottom panel, two side panels, two end panels, and a reinforcing panel assembly extending from a first side panel. The machine includes a hopper station, a corner post forming station, and a plunger station. The method includes rotating the reinforcing panel assembly upwardly toward the first side panel as the blank is transported from the hopper station to the corner post forming station, forming a corner wall and a reinforcing end tab by folding reinforcing panels about fold lines as the blank is transported through the corner post forming station, rotating the side panels and the end panels to be substantially perpendicular to the bottom panel by directing the blank through the plunger station, and coupling the reinforcing end tab to an end panel to form the container.
摘要:
A blank of sheet material for forming a polygonal container is provided. The blank includes two end panels, two side panels, and four corner panels connected in series along a plurality of fold lines. The blank further includes a plurality of bottom panels each extending from one panel of the end panels and the side panels. The plurality of bottom panels is configured to define a locking slot and a locking tab that is insertable into the locking slot to form a bottom wall of the container.
摘要:
This invention relates to a bicycle attachment which can serve as a carrier rack, or as a back protector, or as a seat cover, when moved to various positions. A convertible bicycle carrier-seat cover apparatus which comprises: (a) an attachment adapted to be removably secured to a seat post of a bicycle; (b) a swing arm which at one end thereof is pivotally connected to the attachment, and can be pivoted through a first relatively horizontal position, a second upwardly angled position, and a third upright position in a vertical plane, and is capable of being secured in any one of the positions by a swing arm-attachment securing device; and (c) a platform secured to the end of the swing arm opposite the attachment, said platform being adapted to pivot through a vertical plane in relation to the swing arm, and being capable of being secured in a first relatively horizontal position, a second upwardly angled position, and third upright position relative to the swing arm by a platform-swing arm securing device.
摘要:
A blank of sheet material for forming a container is provided. The blank includes a series of four generally rectangular panels connected along a plurality of substantially parallel fold lines. The panels include a first spaced-apart pair of panels and a second spaced-apart pair of panels. Each of the second spaced-apart pair of panels is connected to at least one panel of the first spaced-apart pair of panels. The blank also includes a corner panel extending from each side edge of each panel of the first pair of panels, and a lateral flap extending from each side edge of each panel of the second pair of panels, wherein each lateral flap has free side edges.
摘要:
A method of forming a container from a blank of sheet material using a machine is provided. The blank includes a bottom panel, two side panels, two end panels, and a reinforcing panel assembly extending from a first side panel. The machine includes a hopper station, a corner post forming station, and a plunger station. The method includes rotating the reinforcing panel assembly upwardly toward the first side panel as the blank is transported from the hopper station to the corner post forming station, forming a corner wall and a reinforcing end tab by folding reinforcing panels about fold lines as the blank is transported through the corner post forming station, rotating the side panels and the end panels to be substantially perpendicular to the bottom panel by directing the blank through the plunger station, and coupling the reinforcing end tab to an end panel to form the container.
摘要:
A blank of sheet material for forming a container is provided. The blank includes a series of four generally rectangular panels connected along a plurality of substantially parallel fold lines. The panels include a first spaced-apart pair of panels and a second spaced-apart pair of panels. Each of the second spaced-apart pair of panels is connected to at least one panel of the first spaced-apart pair of panels. The blank also includes a corner panel extending from each side edge of each panel of the first pair of panels, and a lateral flap extending from each side edge of each panel of the second pair of panels, wherein each lateral flap has free side edges.
摘要:
A container formed from a blank sheet of material. The container includes a plurality of panels that are coupled together along substantially parallel fold lines and that include a first major panel and a second major panel. The plurality of panels form a plurality of sides of the container and define a cavity with a bottom and a top. An outer bottom flap is coupled to the first major panel and has a plurality of edges, and an inner bottom flap is coupled to the second major panel. The container also includes a plurality of flanges where each flange is coupled to one edge of the outer bottom flap. When the container is assembled, the inner bottom flap is positioned adjacent to the cavity bottom and the outer bottom flap is positioned adjacent to the inner bottom flap in a face-to-face relationship forming a bottom of the container. Each flange is folded and coupled to an outer surface of one side of the container.