摘要:
An improved system for advantageously utilizing the destructive forces of cavitation for the erosion of solids which comprises forming a fluid jet by directing a fluid through a restricted orifice at a speed sufficient to form vapor cavities in the fluid jet, surrounding the fluid jet with a liquid medium, and impinging the fluid jet against the solid at a distance from the orifice where the vapor cavities collapse.
摘要:
A stable, floating marine platform is provided having a natural period of oscillation greater than the period of the waves of maximum energy to which the platform may be exposed. A plurality of vertically and radially extending damping plates are circumferentially spaced around the upper and lower submerged portions of the platform, and a horizontal damping plate is secured to the bottom of the platform to prevent resonance oscillation of the platform.
摘要:
TUBULAR MEMBRANES ARE HYDRODYNAMICALLY FORMED WITHIN A POROUS TUBULAR SUPPORT TO FORM A POROUS STRUCTURE, AND SALINE WATER IS SUPPLIED UNDER PRESSURE TO THE INTERIOR OF THE RESULTING STRUCTURE TO RECOVER WATER HAVING A LOW SALT CONCENTRATION OUTSIDE OF THE TUBULAR SUPPORT. WHEN IT BECOMES NECESSARY TO REPLACE THE TUBULAR MEMBRANE, THE SUPPLY OF SALINE WATER IS DISCONTINUED AND
A SOLVENT IS FORCED AXIALLY ALONG THE TUBULAR MEMBRANE TO DISSOLVE IT. SUBSEQUENTLY, THE TUBULAR MEMBRANE IS HYDRODYNAMICALLY REGENERATED AND THE REVERSE-OSMOSIS OPERATION CAN BE RESUMED.
摘要:
A MEASURING ELECTRODE FOR THE SELECTIVE DETERMINATION OF THE ACTIVITY OF CERTAIN IONS IN AQUEOUS SOLUTIONS. A HOLDER IS PROVIDED WITH A PROTRUDING CONDUCTOR AND THE PROTRUDING CONDUCTOR IS COVERED BY A CAP REMOVABLY AT-
TACHED TO THE HOLDER. AN ION-SPECIFIC MEMBRANE IS LOCATED OVER AN APERTURE IN THE CAP AND THE CAP IS ADAPTED TO HOLD A STANDARD ELECTROLYTE SOLUTION.
摘要:
A hydrodynamic method and apparatus are provided for forming tubular members useful in reverse-osmosis apparatus. A conventional film-forming liquid is forced through a tubular support by a pressurized column of gas to form a film of liquid on the inner wall of the tube. The liquid is then cured to solidify the film of liquid in tubular form. The disclosed hydrodynamic method and apparatus make possible an advantageous reverse-osmosis process and apparatus for recovering water of a low-salt concentration from saline water. Tubular membranes are hydrodynamically formed within a porous tubular support to form a porous structure, and saline water is supplied under pressure to the interior of the resulting structure to recover water having a low-salt concentration outside of the tubular support. When it becomes necessary to replace the tubular membrane, the supply of saline water is discontinued and a solvent is forced axially along the tubular membrane to dissolve it. Subsequently, the tubular membrane is hydrodynamically regenerated and the reverseosmosis operation can be resumed.
摘要:
A galvanic oxygen detector comprising a metallic tubular housing having gas inlet and outlet means; a tubular and consumable anode concentrically mounted in intimate electrical contact with the inner surface of the housing; a tubular, porous and nonconductive electrolyte retentive matrix concentrically mounted in intimate contact with the inner surface of the anode; and a tubular and porous cathode concentrically mounted in intimate contact with the inner surface of the electrolyte matrix, the cathode defining a central chamber for confining the flow of gas that passes through the housing over the inner surface of the cathode. An external electrical circuit is connected between the cathode and the housing for measuring the current generated by the reduction of oxygen in the gas sample.
摘要:
An improved system for advantageously utilizing the destructive forces of cavitation for the erosion of solids which comprises forming a fluid jet by directing a fluid through a restricted orifice at a speed sufficient to form vapor cavities in the fluid jet, surrounding the fluid jet with a liquid medium, and impinging the fluid jet against the solid at a distance from the orifice where the vapor cavities collapse.