Synchronized Double-Acting Pumps for High-Pressure Injection
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Solution Overview
Problem
High-pressure processes face challenges in achieving constant and homogeneous injection of media due to pressure fluctuations in traditional double acting pumps, which are not effectively addressed by phased flow pumps, especially at high throughputs and pressures, requiring a solution that optimizes pressure characteristics and minimizes pulsations.
Innovation Solution
A pump injection arrangement utilizing synchronized double acting bidirectional pumps with a phase offset of 180° or less, coupled with a regulating unit, to generate pressure via multiple shafts through a joint high-pressure conduit, ensuring precise control and minimizing pulsations, thereby optimizing pressure characteristics and reducing engineering costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional double acting pumps are used for high-pressure injection, then reliable proven technology and minimized servicing are achieved, but pressure fluctuations and pulsations occur during operation
Solution Approach 1:
The patent combines multiple double-acting pumps into a single pump unit where the piston of one pump is connected to the crankshaft of another pump. This merging allows the pumps to operate in complementary phases, where one pump delivers pressure while the other recharges, eliminating the pressure fluctuations and pulsations inherent in single double-acting pumps while maintaining the reliability and minimized servicing advantages of proven technology
2Stability of the object's composition
If unidirectionally acting phased flow pumps are used to eliminate pressure fluctuations, then stable process and maintenance intervals are improved, but equipment requirements and complexity increase
Solution Approach 1:
Instead of using unidirectional phased flow pumps with complex valve mechanisms to achieve pressure stability, the patent inverts the approach by using traditional double-acting pumps with bidirectional operation. By connecting the piston of one pump to the crankshaft of another and operating them in complementary phases, the system achieves pressure stability through the inherent bidirectional capability of double-acting pumps, thereby eliminating the need for complex phased flow valve mechanisms while maintaining stable pressure characteristics
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution ensures a stable and constant pressure level over time, even at high throughputs, with reduced pulsations and lower engineering outlay, providing cost advantages and improved operational readiness.
Implementation Method 1
at least two of the synchronously regulated injection pump apparatuses are double acting bidirectionally operating high-pressure pumps which are functionally coupled with at least single redundancy to the regulating unit in such a way that the pressure can be generated via at least two shafts and the pressurized medium can be made available for injection via a joint high-pressure conduit
Data Source
AI summary
A pump injection arrangement can inject a medium at least one process position into a high-pressure process, in particular at least two different pressure levels. The pump injection arrangement includes injection pump apparatuses for the medium and a regulating unit coupled to the injection pump apparatuses and configured for regulating the injection by at least two of the injection pump apparatuses. The pump injection arrangement is configured for synchronized regulation of the injection pump apparatuses with dependence on one another. At least two of the synchronously regulated injection pump apparatuses are double acting bidirectionally operating high-pressure pumps that are functionally coupled with at least single redundancy to the regulating unit such that pressure can be generated via at least two shafts and the pressurized medium can be made available for injection via a joint high-pressure conduit. In this way, advantageous pressure and pumping characteristics can be achieved.