Abstract:
An apparatus for dispersing particles (P) in a fluid (F), comprising: a flow divider (10) for receiving the fluid (F) and for separating the fluid (F) into a first fluid stream (F1) and a second fluid stream (F2); first and second fluid branches (11, 12) for receiving the fluid streams (F1, F2); a branch joining section (14) for receiving the fluid streams (F1, F2), the branch joining section (14) having a collision zone (141) for allowing the first and second fluid streams (F1, F2) to collide; a first nozzle (30) that is arranged in the first fluid branch (11); and a second nozzle (40) is arranged in the second fluid branch (12), the first nozzle (30) comprising an orifice (33) that is followed by a fluid diverging section (36).
Abstract:
Apparatus is provided for introducing gas bubbles 30 (usually air bubbles) into a liquid stream 14 to coalesce material such as unwanted bits, or particles, of hydrocarbons that lie in the liquid stream along with wanted dissolved bits of metal, for removal of the hydrocarbons. The apparatus is constructed to produce a large number of bubbles of an optimum range such as 60 to 100 μm which best coalesce the hydrocarbons. A controller (110) receives the outputs of sensors such as pressure and flow rate sensors (P, F) and uses them to make changes in other parameters such as the pressure of air introduced (at 118) into the liquid stream and the pressure in a third conduit 48 of the liquid-bubble stream.
Abstract:
A fire suppression apparatus for mixing a first fluid, such as water, with a second fluid, such as foam, to be delivered through a fluid delivery line. A ratio controller is disposed within the delivery line and includes a first restriction area through which the first fluid passes, and that also accepts the second fluid. A fluid control mechanism is connected to the ratio controller, and includes a second restriction area. The fluid control mechanism delivers the second fluid to be mixed with the first fluid in the delivery line. A pressure sensing module measures the pressures of the first and second fluids. A control computer processes the pressures measured from the pressure sensing module, and maintains the pressure of the second fluid equal to the pressure from the first fluid. The first restriction area and the second restriction area define a ratio that determines a flow amount of the second fluid.
Abstract:
The present invention is related to a system and method for controlled manufacturing of mono-disperse microbubbles. According to the invention, the mono-disperse nature of the collection of generated microbubbles can be improved by releasing the pressurized gaseous medium used in the system using release valve units. This further allows the system to be embodied as a portable system. In turn, the operator of an ultrasound imaging apparatus may use the system according to the invention to generate microbubbles on a patient-by-patient basis.
Abstract:
Apparatus and method in which a solid or liquid additive is dispensed within a mixing chamber for mixing with a fluid from the pressurized fluid flow line and is effective mixed in a vortex under vacuum while precluding contamination of the unused additive. It is therefore, a principle object of the present disclosure to provide an apparatus for mixing of an additive material into a fluid and method of use which includes a cylindrical mixing container, an additive supply unit, a linear actuator coupled to the additive supply unit and adapted to withdraw the additive supply unit from the cylindrical mixing container to a point above an isolating valve,
Abstract:
A foam generating system is disclosed that includes a liquid source providing liquid including at least one of water, an additive and a foaming agent. The system further includes a compressed gas source and a manifold coupled with the liquid source to receive liquid therefrom. A pressure control valve controls pressure of liquid flowing from the liquid source to the manifold and a plurality of foam generators fluidly coupled with the manifold. A control system is electrically coupled to the pressure control valve and each foam generator. In one implementation, the control system operates each of the foam generators to provide a first flow control state for a first type of foam output, a second flow control state for a second type of foam output and a water flow control state for liquid.
Abstract:
A liquid product is dispensed via a membrane contactor (1). The contactor employs a plurality of gas-permeable hollow fibres. The contactor has a gas port (2) communicating with the interior of the fibres and input (3) and output (4) ports for liquid communicating with space within the contactor surrounding the fibres. A gas comprising carbon dioxide or nitrous oxide is dissolved in the liquid in the contactor. The gas at a controlled pressure is supplied to the gas port (2). The liquid is supplied at a higher pressure than the gas to the input port (3) for liquid from a supply (9) of such liquid via a first valve (6) having a first valve inlet port communicating with the supply of liquid and a first valve outlet port communicating with the inlet port for liquid. Liquid with the gas dissolved therein is dispensed from the outlet port for liquid via a dispense tap to ambient. The dispensing liquid step includes a start dispense step in which dispensing commences and a stop dispense step in which dispensing is stopped. The first valve (6) is opened with the dispensing tap in the start dispense step, and is closed in the stop dispense step. Pressure build-up is relieved in liquid in communication with the space within the contactor surrounding the fibres after closure of the first valve (6) and while maintaining the first valve (6) closed. The balance between gas pressure and liquid pressure during the systems' standby periods protects the membranes from flooding.
Abstract:
A foam generating system is disclosed that includes a liquid source providing liquid including at least one of water, an additive and a foaming agent. The system further includes a compressed gas source and a manifold coupled with the liquid source to receive liquid therefrom. A pressure control valve controls pressure of liquid flowing from the liquid source to the manifold and a plurality of foam generators fluidly coupled with the manifold. A control system is electrically coupled to the pressure control valve and each foam generator. In one implementation, the control system operates each of the foam generators to provide a first flow control state for a first type of foam output, a second flow control state for a second type of foam output and a water flow control state for liquid.