A self-deploying float assembly to support mechanical equipment such as aerators and mixers for use in water, wastewater and process water stream treatment basins and a method of installing same.

This application discloses a water pump with a suspension function, including: a pump casing, a pump cover, a motor, a pressing ring, a volute and a base. In this way, the water pump with the suspension function disclosed in this application has an upper part suspended on a water surface to clarify the position of the water pump, thus preventing the problem of being buried by underwater mud and sucking in underwater impurities, and protecting a sealing structure at the upper part of the pump casing.

A floating pump for pumping a liquid includes a pump housing; and a pump element arranged in or on the housing and provided with a fan, and operatively connected to a drive. The pump housing is configured to keep the floating pump substantially wholly floating.

A rotary blood pump includes a casing defining a pumping chamber. The pumping chamber has a blood inlet and a tangential blood outlet. One or more motor stators are provided outside of the pumping chamber. A rotatable impeller is within the pumping chamber and is adapted to cause blood entering the pumping chamber to move to the blood outlet. The impeller has one or more magnetic regions. The impeller is radially constrained in rotation by magnetic coupling to one or more motor stators and is axially constrained in rotation by one or more hydrodynamic thrust bearing surfaces on the impeller.

A high-power pump structure includes a housing having a first and an opposite second side; an isolating plate; and a closing member. On the first side, a pump chamber is formed and divided into a first and a second chamber by a partitioning section, which has an end forming a flow-guiding plate. In the second chamber, there is a raised pivot section having a centered receiving opening for connecting with a rotor assembly, such that an annular recess is defined on the second side corresponding to a rear side of the pivot section for receiving a stator assembly. The isolating plate covers the second chamber, so that the second chamber is not directly communicable with the first chamber. The closing member covers the first side of the housing with a communicating chamber formed between the closing member and the isolating plate to communicate with the first and the second chamber.

The invention provides a flow system, a subsea valve, and a method of use in a subsea pipeline filling, flooding or pigging operation. The flow system comprises a subsea valve comprising a valve inlet and a valve outlet configured to be coupled to a subsea pipeline. A pump comprises a pump inlet connected to a fluid source and a pump outlet connected to the valve inlet. The pump is operable to pump fluid from the fluid source and into the subsea pipeline via the subsea valve. The subsea valve comprises a movable valve member and a biasing mechanism, by which the valve member is urged by a biasing force towards a closed position that prevents flow of fluid through the valve and into the subsea pipeline. The valve member is operable to be moved to an open position on activation of the pump to provide a pressure increase at the valve inlet sufficient to overcome the biasing force. In use, opposing sides of the valve member are exposed to ambient subsea pressure such that the subsea valve is pressure balanced.

A pump system or device is provided for removing water from a pool cover or sump, featuring a controller configured to respond to a signal containing information about the ambient temperature in relation to a pump and to provide a controller signal containing information to control the operation of the pump based at least partly on the ambient temperature. The pumping system or device me be configured to include some combination of the following: temperature sensing, including a Thermistor, to change control logic at temperatures below a specific level (e.g. below 35 degrees F.); the initiation of impeller cycling at low operating temperatures to avoid ice formation in the impeller cavity and/or hose, but not for level sensing; the use of temperature feedback to turn off pump at low temperatures that may result in damage to the system; the addition of control logic to ignore torque increases due to contamination or flow-back Inclusion of soft-start of motor to reduce stress on impeller/motor; the option to connect Garden-style hose with an integral heating element to avoid freezing; a heating element to receive power from the pump via, e.g., a plug connector, where power to the heating element is supplied only when the temperature device is activated at some specified setting; the addition of a temperature sensor to render the pump inoperative if the temperature should fall below a set point (freezing); and/or the use of a field effect level sensor, such that the temperature sensing is substantially independent of the level sensing device.

A self-deploying float assembly to support mechanical equipment such as aerators and mixers for use in water, wastewater and process water stream treatment basins and a method of installing same.

A self-deploying float assembly to support mechanical equipment such as aerators and mixers for use in water, wastewater and process water stream treatment basins and a method of installing same.

According to embodiments described in the specification, a pumping system for use in a tailings pond is provided. The pumping system comprises a pump support and at least one mooring element coupled to the pump support. The at least one mooring element has an extended position for fixing the pump support to a bed of the tailings pond, and a retracted position for permitting movement of the pump support towards a shore of the tailings pond. The at least one mooring element is configured for transitioning from the extended position to the retracted position when a distance from the shore to the pump support exceeds a threshold as a result of a change to tailings pond geometry, and for returning to the extended position following movement of the pump support to reduce the distance below the threshold.