Multistage Compressor Bypass Control for Closed-Mode Energy Loss
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Solution Overview
Problem
Multistage compressors in pressure control systems face inefficiencies in energy consumption and compression power distribution, particularly in closed operating modes where the second compression stage contributes to unnecessary energy usage and friction losses.
Innovation Solution
A pneumatically or electrically controllable diversion valve is used to bypass the second compression stage, allowing the first compression stage to handle additional compression of precharged pressure medium, thereby reducing the second stage's compression power to minimal friction losses and optimizing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the second compression stage operates in closed mode, then compression power is maintained, but energy consumption increases due to unnecessary compression work and friction losses
Solution Approach 1:
The patent extracts the second compression stage from the active compression path by routing the compressed medium around it through a bypass line. This allows the second stage to be removed from the energy-consuming compression cycle while maintaining its structural presence in the system, thereby eliminating unnecessary compression work and friction losses during closed mode operation.
Solution Approach 2:
The patent introduces a diversion valve as an intermediary component that controls the flow path of the compressed medium. This valve acts as a mediator between the first compression stage and the second compression stage, directing the medium either through the second stage (when needed) or around it (when not needed), thereby enabling dynamic adaptation to operational requirements and optimizing energy consumption.
2Use of energy by moving object
If the second compression stage is bypassed, then energy consumption is reduced, but compression power for high-pressure output is reduced
Solution Approach 1:
The patent implements dynamic control of the compression system by using a diversion valve that can switch the flow path between two configurations. This dynamic adaptability allows the system to optimize between energy consumption and compression power output based on real-time operational demands, enabling the second compression stage to be engaged when high pressure is needed and bypassed when energy efficiency is prioritized.
3Productivity
If the first compression stage handles additional compression in closed mode, then volume flow increases, but the second compression stage creates friction losses
Solution Approach 1:
The patent removes the second compression stage from the active compression path during closed mode operation by routing the compressed medium through a bypass line. This extraction eliminates the friction losses that would occur in the second stage while allowing the first compression stage to handle the full volume flow requirement, thereby improving overall system efficiency.
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 approach allows for efficient adaptation of compression power and volume flow to operating modes, reducing energy consumption and maintaining high drying levels, enabling higher final volume flows within acceptable energy limits.
Implementation Method 1
A pneumatically or electrically controllable diversion valve is used to bypass the second compression stage
Implementation Method 2
the first compression stage additionally compresses the charge pressure medium
Data Source
AI summary
A method for operating a pressure control system having a multistage compressor includes outputting, by the multistage compressor in order to fill a pressure medium store or pressure medium chambers of the pressure control system, a pressure medium compressed multiple times. Outputting the pressure medium compressed multiple times includes providing, by a first compression stage, a precompressed pressure medium and further compressing, by a second compression stage, the precompressed pressure medium to form a compressed pressure medium and then outputting the compressed pressure medium. Alternatively, outputting the pressure medium compressed multiple times includes providing a compression pressure medium, which is obtained from additional compression of an already compressed charge pressure medium from the pressure medium reservoir or the pressure medium chambers of the pressure control system, wherein the compression pressure medium is output without additional compression by the second compression stage.