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US 10,935,012 B2Granted
Pumping station for a pipeline and method for starting a combustion engine in a pumping station
AssigneeVoith Patent GmbH
InventorsDaniel Flemmer, Bert Brahmer
Life of this patent
Estimating the term…
Abstract
A pumping station for a pipeline, in particular an oil or gas pipeline, has a feed pump for delivering a fluid through the pipeline and a combustion engine for driving the feed pump. A hydrostatic system has a hydraulic motor for driving the combustion engine, in order to accelerate same to start-up. The hydraulic system also has a hydraulic pressure accumulator of limited volume which can be filled with a pressurized hydraulic medium to be admitted to the first hydraulic motor, thereby powering the latter. A pressure differential in the hydrostatic system prevailing over the hydraulic motor is variably adjustable, in order to accelerate the combustion engine to a predefined firing speed.
Claims28
A pumping station for a pipeline, the pumping station comprising:
- at least one feed pump for delivering a fluid through the pipeline;
- at least one combustion engine configured for driving said at least the one feed pump;
- a hydrostatic system having a first hydraulic motor configured to drive said at least one combustion engine and to accelerate said at least one combustion engine to start-up;
- said hydrostatic system having a hydraulic pressure accumulator of limited volume to be filled with a pressurized hydraulic medium, which can be fed to said first hydraulic motor, to thereby power said first hydraulic motor;
- and
- wherein a pressure differential in the hydrostatic system prevailing over said first hydraulic motor is variably adjustable, in order to accelerate said combustion engine to a predefined firing speed;
- and
- an adjustable throttle valve in said hydrostatic system upstream or downstream of the first hydraulic motor in a flow direction of the hydraulic medium, for variable adjustment of the pressure differential prevailing over said first hydraulic motor.
5 more elements
A pumping station for a pipeline, the pumping station comprising:
- at least one feed pump for delivering a fluid through the pipeline;
- at least one combustion engine configured for driving said at least the one feed pump;
- a hydrostatic system having a first hydraulic motor configured to drive said at least one combustion engine and to accelerate said at least one combustion engine to start-up;
- said hydrostatic system having a hydraulic pressure accumulator of limited volume to be filled with a pressurized hydraulic medium, which can be fed to said first hydraulic motor, to thereby power said first hydraulic motor;
- and
- wherein a pressure differential in the hydrostatic system prevailing over said first hydraulic motor is variably adjustable, in order to accelerate said combustion engine to a predefined firing speed;
- and
- an additional hydraulic motor in said hydrostatic system connected to receive hydraulic medium from said the pressure accumulator, and a hydraulic pump powered by said additional hydraulic motor configured to feed hydraulic medium into said first hydraulic motor.
5 more elements
A pumping station for a pipeline, the pumping station comprising:
- at least one feed pump for delivering a fluid through the pipeline;
- at least one combustion engine configured for driving said at least the one feed pump;
- a hydrostatic system having a first hydraulic motor configured to drive said at least one combustion engine and to accelerate said at least one combustion engine to start-up;
- said hydrostatic system having a hydraulic pressure accumulator of limited volume to be filled with a pressurized hydraulic medium, which can be fed to said first hydraulic motor, to thereby power said first hydraulic motor;
- and
- wherein a pressure differential in the hydrostatic system prevailing over said first hydraulic motor is variably adjustable, in order to accelerate said combustion engine to a predefined firing speed;
- and
- at least one booster pump in said hydrostatic system, for feeding hydraulic medium from a hydraulic medium reservoir into said pressure accumulator.
5 more elements
A pumping station for a pipeline, the pumping station comprising:
- at least one feed pump for delivering a fluid through the pipeline;
- at least one combustion engine configured for driving said at least the one feed pump;
- a hydrostatic system having a first hydraulic motor configured to drive said at least one combustion engine and to accelerate said at least one combustion engine to start-up;
- said hydrostatic system having a hydraulic pressure accumulator of limited volume to be filled with a pressurized hydraulic medium, which can be fed to said first hydraulic motor, to thereby power said first hydraulic motor;
- and
- wherein a pressure differential in the hydrostatic system prevailing over said first hydraulic motor is variably adjustable, in order to accelerate said combustion engine to a predefined firing speed;
- and
- wherein said combustion engine, said at least one feed pump and said first hydraulic motor are arranged inside an explosion safety zone, and at least one or more or all of the following devices are positioned, spatially separated, outside said explosion safety zone:
- said hydraulic pressure accumulator;
- at least one booster pump;
- said hydraulic medium reservoir;
- an additional hydraulic motor;
- an adjustable throttle valve;
- at least one sensor;
- a gas reservoir;
- and
- a control device.
14 more elements
Dependencies are inferred from the claim text.