Integrated Hydrogen Compressor Layout With Shared Drive Stages
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Solution Overview
Problem
The efficient compression of hydrogen is challenging due to its low molecular weight, requiring numerous compressor stages with intercooling and large housings, leading to multiple drives and gearboxes, which increases costs and complexity.
Innovation Solution
A compact compression arrangement is designed with cascaded compressors of identical types, minimizing drive motors and housings by maintaining constant volume flow rates and low losses, using a single drive unit and planetary gears to connect compressors with varying pressure ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If numerous compressor stages are used to compress hydrogen, then the compression ratio is achieved, but the device complexity and number of drive motors increase
Solution Approach 1:
Multiple compressors are merged into a single integrated compressor unit with a common casing and shared drive motor. The compressors work in series within the same housing, eliminating the need for separate drive motors and control systems for each stage, thereby reducing device complexity while maintaining the required compression ratio
Solution Approach 2:
The single drive motor serves multiple compressors simultaneously, performing the function of multiple drive units. The integrated design allows one motor to power several compression stages through a unified mechanical transmission system, reducing the total number of drive components
2Power
If numerous compressor stages with large housings are used, then the compression task is fulfilled, but the space requirements and housing volume increase
Solution Approach 1:
Multiple compressors are nested within a single housing structure, with each compressor stage arranged concentrically or in series within the same casing volume. This nesting approach allows multiple compression functions to occupy the space of a single housing rather than requiring separate housings for each stage
Solution Approach 2:
The housings of multiple compressors are merged into one unified casing structure. The common housing contains all compression stages, eliminating the need for multiple separate housings and reducing the total volume of stationary components required
3Power
If multiple compressor trains with intermediate gearboxes are used, then the compression ratio is achieved, but the manufacturing costs and system complexity increase
Solution Approach 1:
Multiple compressor trains are merged into a single integrated unit with a common drive motor and unified transmission system. The intermediate gearboxes are consolidated into one shared gearbox design, reducing the total number of mechanical components and simplifying manufacturing processes
Solution Approach 2:
The single gearbox serves multiple compressors within the integrated unit, providing universal mechanical transmission to all compression stages. This eliminates the need for separate gearbox assemblies for each compressor train, reducing manufacturing complexity and cost
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 reduces costs and space requirements by optimizing compressor design and operation, allowing for efficient and cost-effective hydrogen compression.
Implementation Method 1
a compression arrangement for compressing hydrogen
Implementation Method 2
a cooling arrangement for cooling the flow medium is arranged between the outlet of a compressor of the first type and the inlet of a compressor of the second type
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a compression arrangement (1) for compressing hydrogen, comprising at least eight compressors of a first type (2) which, on the inlet side, are fluidically connected to a hydrogen inlet line, at least two compressors of a second type (3) which, on the inlet side, are fluidically connected to the outlet of the compressors of the first type (2), at least one compressor of a third type (4) which, on the inlet side, is fluidically connected to the outlet of the compressors of the second type (3), at least one compressor of a fourth type (5) which, on the inlet side, is fluidically connected to the outlet of the compressor of the third type (4).