Pump and associated system and methods
AssigneeMhwirth AS
InventorRoman Jansen
Life of this patent
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Abstract
A pump for pumping a pumping mud or a slurry. The pump includes a housing having a pump chamber and an intermediate fluid chamber, a membrane arranged within the housing, a reciprocal pumping member operatively arranged in the intermediate fluid chamber, and an accumulator fluidly connected to the intermediate fluid chamber via a throttle. The pump chamber has a fluid inlet and a fluid outlet. The membrane delimits the pump chamber from the intermediate fluid chamber.
Claims8
A pump for pumping a pumping mud or a slurry, the pump comprising:
- a housing comprising a pump chamber and an intermediate fluid chamber, the pump chamber comprising a fluid inlet and a fluid outlet;
- a membrane arranged within the housing, the membrane delimiting the pump chamber from the intermediate fluid chamber;
- a reciprocal pumping member operatively arranged in the intermediate fluid chamber;
- a first accumulator fluidly connected to the intermediate fluid chamber via a first throttle;
- a second throttle;
- and
- a second accumulator which is fluidly connected to the intermediate fluid chamber via the second throttle,
- wherein,
- the pump has a design intake pressure and a design discharge pressure,
- the first accumulator is configured to dampen pressure fluctuations at a first pressure level which corresponds to the design intake pressure for the pump, and
- the second accumulator is configured to dampen the pressure fluctuations at a second pressure level which corresponds to the design discharge pressure for the pump.
A method for dampening pressure fluctuations in a pump, the method comprising:
- operating the pump to pump a pumping mud or a slurry;
- providing a first accumulator which is fluidly connected to an intermediate fluid chamber of the pump via at least one throttle;
- providing a second accumulator which is fluidly connected to an intermediate fluid chamber of the pump via at least one throttle;
- and
- dampening, via the first accumulator and the second accumulator, pressure fluctuations in the intermediate fluid chamber which have a frequency which is higher than a reciprocating speed of the pump,
- wherein,
- the pressure fluctuations at a first pressure level which corresponds to a design intake pressure of the pump are dampened by the first accumulator, and
- the pressure fluctuations at a second pressure level which corresponds to a design discharge pressure of the pump are dampened by the second accumulator.
A pump for pumping a pumping mud or a slurry, the pump comprising:
- a housing comprising a pump chamber and an intermediate fluid chamber, the pump chamber comprising a fluid inlet and a fluid outlet;
- a membrane arranged within the housing, the membrane delimiting the pump chamber from the intermediate fluid chamber;
- a reciprocal pumping member operatively arranged in the intermediate fluid chamber;
- a first accumulator fluidly connected to the intermediate fluid chamber via a first throttle;
- a second throttle;
- and
- a second accumulator which is fluidly connected to the intermediate fluid chamber via the second throttle,
- wherein,
- the first throttle provides a two-way fluidic communication between the first accumulator and the intermediate fluid chamber, and
- the second throttle provides a two-way fluidic communication between the second accumulator and the intermediate fluid chamber.
Dependencies are inferred from the claim text.