Gas refrigerating machine, method for operating a gas refrigerating machine and method for manufacturing a gas refrigerating machine as open system
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Solution Overview
Problem
Existing cold air refrigerating machines are limited in their use due to the need for compact design to prevent losses through pipes and inefficient flow conditions, especially in the recuperator and compressor connections, leading to suboptimal efficiency and complexity.
Innovation Solution
The gas refrigerating machine is designed with a compact layout where the recuperator is arranged to extend around the suction region of the compressor, forming a direct or counter-flow principle, and all components are housed in a rotationally symmetrical cylindrical shape with the compressor above the turbine, optimizing flow and reducing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the gas refrigerating machine is designed with extended pipe connections between components, then the machine can accommodate larger component sizes, but pipe losses increase and efficiency decreases
Solution Approach 1:
The patent merges the recuperator and compressor into a single integrated component, eliminating the need for separate pipe connections between these two elements. This integration directly reduces pipe losses while maintaining optimal component sizes for heat exchange and compression functions.
Solution Approach 2:
The recuperator is designed to surround the compressor in a nested configuration, where the recuperator housing forms the outer structure and the compressor is positioned within the central region. This nesting arrangement minimizes the distance between components and eliminates external pipe connections, reducing energy losses while allowing both components to maintain their optimal sizes.
2Ease of operation
If the recuperator is positioned away from the compressor, then easier assembly and maintenance are achieved, but flow conditions become inefficient and complexity increases
Solution Approach 1:
The recuperator and compressor are merged into a single integrated component with unified housing, eliminating the need for separate assembly and connection of multiple parts. This integration simplifies the overall structure while maintaining optimal flow conditions through carefully designed internal passages.
Solution Approach 2:
The integrated design provides different local structures for different functions: the outer recuperator section is optimized for heat exchange with extended surface area, while the inner compressor section is optimized for gas compression. The transition between these zones is designed with smooth flow passages that maintain efficient gas flow without increasing overall complexity.
3Ease of manufacture
If traditional separate component layout is used, then manufacturing and assembly are simpler, but noise levels increase and energy consumption rises
Solution Approach 1:
The recuperator and compressor are manufactured as a single integrated component, which actually simplifies the manufacturing process by reducing the number of separate parts that need to be produced, assembled, and sealed. The integrated design eliminates energy losses associated with pipe connections while maintaining ease of manufacture through standardized production methods.
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 design achieves high efficiency with reduced noise and lower energy consumption by minimizing pipe losses and ensuring optimal gas flow, resulting in a technically simpler and more reliable operation.
Implementation Method 1
A compressor C compresses gas circulating in the closed system
Implementation Method 2
The compressed gas is cooled by a heat exchanger, which is schematically labeled 'heat sink' and 'heat release'
Implementation Method 3
Isentropic expansion takes place in the turbine E, as shown by the transition between point 4 and point 5
Implementation Method 4
Iobaric heat dissipation also takes place through the recuperator R, as shown by the transition between point 3 and point 4
Data Source
AI summary
A gas refrigerating machine comprising: an input (2) for gas; a recuperator (10); a compressor (40) having a compressor input (41), the compressor input (41) being coupled to a first recuperator output (12); a heat exchanger (60); a turbine (70); and a gas output (5), wherein the gas refrigerating machine is configured as open system, and wherein the gas refrigerating machine is configured such that a working medium in at least one element of the group of elements comprising the recuperator (10), the compressor (40), the heat exchanger (60) and the turbine (70), is the gas, and wherein the input (2) is arranged at a first portion of a housing (100) of the gas refrigerating machine where the input (2) and the gas output (5) are configured, wherein the gas output (5) is arranged at a second portion of the housing (100) of the gas refrigerating machine, and wherein the first portion is arranged above the second portion in an operating direction in which the gas refrigerating machine is set up for an operation of the gas refrigerating machine.