초록 ▼

A liquid jet pump for moving a wide variety of material is described. The liquid jet pump is comprised of a nozzle assembly and a target tube, and defines a suction chamber. The nozzle assembly is configured to pull in gas, causing a gas bearing effect wherein a layer of gas surrounds the liquid jet

A liquid jet pump for moving a wide variety of material is described. The liquid jet pump is comprised of a nozzle assembly and a target tube, and defines a suction chamber. The nozzle assembly is configured to pull in gas, causing a gas bearing effect wherein a layer of gas surrounds the liquid jet flow exiting the nozzle assembly. The liquid jet passes through the suction chamber with minimal deflection, reducing cavitation and improving mixing as educted materials enter the suction chamber and combine with the liquid jet. The combined material is directed into the target tube, which preferably is designed to detach from the other components and is composed of abrasion-resistant material. The target tube absorbs the majority of wear, and provides ease of changing parts. The nozzle assembly is preferably positioned within the suction chamber in a way which maximizes vacuum, and the vacuum is maintained in relation to the pressure or vacuum produced by a downstream pump in a unique way, by controlling the gas flow into the nozzle assembly. In this way, the pump realizes drastic and surprising increases in solids pumping efficiency and solids/liquid mixing efficiency.

대표청구항 ▼

1. Apparatus comprising:(a) a nozzle assembly which is sized and configured to (i) receive a pressurized liquid and a gas, and (ii) eject said pressurized liquid as a liquid flow while feeding said gas into proximity with the periphery of said liquid flow; (b) a housing defining a suction chamber in

1. Apparatus comprising:(a) a nozzle assembly which is sized and configured to (i) receive a pressurized liquid and a gas, and (ii) eject said pressurized liquid as a liquid flow while feeding said gas into proximity with the periphery of said liquid flow; (b) a housing defining a suction chamber into which said nozzle assembly may eject said liquid flow, said housing further defining a suction inlet and a suction outlet; (c) an outlet pipe extending from said suction outlet away from said suction chamber, said outlet pipe being configured for fluid communication with said suction chamber and being disposed to receive said liquid flow; said outlet pipe defining at least a first inner diameter along a portion of its length and a second inner diameter along another portion of its length, said second inner diameter being less than said first inner diameter; and (d) a suction pipe, a first end of said suction pipe opening into said suction chamber at said suction inlet, and a second end of said suction pipe opening into the surrounding environment; wherein said nozzle assembly extends into said suction chamber towards said suction outlet and into the imaginary line of flow of said suction pipe.