Cooling system, air-conditioning system, motor assembly and associated methods
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Solution Overview
Problem
Existing gas liquefaction systems are energy-intensive, complex, bulky, and pose safety risks, with high operational costs and inefficiencies, making them unsuitable for efficient and safe gas concentration and liquefaction, especially for gases like air.
Innovation Solution
A cooling system comprising a Stirling heat pump, primary electric motor, primary pump, and cooling means to efficiently cool inlet gases to cryogenic temperatures, forming cryogenic liquids, which are then used to power and cool the system, reducing energy consumption and enhancing safety through optimized pressurization and low-viscosity cryogenic liquids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional compression systems are used for gas liquefaction, then gas concentration can be achieved, but energy consumption is high and safety risks increase
Solution Approach 1:
The patent utilizes phase transitions of gases (compression, cooling, and liquefaction) to achieve gas concentration. The system compresses gas to critical pressure, then uses heat exchangers and expansion devices to induce phase change from gas to liquid, thereby concentrating the gas without requiring continuous high-energy compression.
Solution Approach 2:
The patent introduces heat exchangers and cooling media as intermediaries to facilitate gas liquefaction. These intermediaries transfer heat from the compressed gas to the environment, enabling phase change at lower energy costs compared to direct compression alone, thus reducing overall energy consumption while maintaining safety.
2Quantity of substance
If traditional compression systems are used for gas liquefaction, then gas concentration can be achieved, but system complexity increases
Solution Approach 1:
The patent divides the gas liquefaction process into distinct segments: compression stage, heat exchange stage, expansion stage, and liquefaction stage. Each segment is handled by dedicated components (compressor, heat exchangers, expansion device, storage tank), simplifying the overall system design and operation compared to integrated traditional systems.
Solution Approach 2:
The patent performs preliminary compression of gas to critical pressure before entering the heat exchange and expansion phases. This preliminary action prepares the gas for efficient phase transition, reducing the complexity of subsequent liquefaction steps and enabling simpler system architecture.
3Quantity of substance
If traditional compression systems are used for gas liquefaction, then gas concentration can be achieved, but safety risks increase
Solution Approach 1:
The patent uses heat exchangers and cooling media as intermediaries to facilitate gas liquefaction. These intermediaries transfer heat from the compressed gas to the environment, enabling phase change at lower energy costs compared to direct compression alone, thus reducing overall energy consumption while maintaining safety.
Solution Approach 2:
The patent incorporates safety valves, pressure relief devices, and temperature monitoring systems as beforehand cushioning measures. These safety components are pre-installed to prevent over-pressurization and overheating during compression and liquefaction, thereby mitigating safety risks before they can manifest.
4Quantity of substance
If traditional cooling systems are used for gas liquefaction, then liquefaction can be achieved, but energy efficiency is poor
Solution Approach 1:
The patent utilizes phase transitions of gases (compression, cooling, and liquefaction) to achieve gas concentration. The system compresses gas to critical pressure, then uses heat exchangers and expansion devices to induce phase change from gas to liquid, thereby concentrating the gas without requiring continuous high-energy compression.
Solution Approach 2:
The patent employs periodic compression and expansion cycles to achieve gas liquefaction. The compressor operates in cycles, compressing gas to critical pressure, then the expansion device periodically releases and expands the gas, inducing phase change. This periodic action reduces continuous energy input requirements, improving energy efficiency compared to continuous high-power cooling systems.
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
The system achieves efficient, compact, and adaptable gas liquefaction with reduced maintenance and energy costs, improved safety, and enhanced energy efficiency, making it suitable for various applications, including motor vehicles and pollution control, with minimal environmental impact.
Implementation Method 1
a Stirling heat pump (2) designed to cool an inlet gas (Ge) down to a cryogenic temperature in order to form a cryogenic liquid (L)
Implementation Method 2
a primary pump (4) intended to circulate said cryogenic liquid (L) under pressure
Implementation Method 3
a cooling means (5), intended to cool said primary electric motor (3) by means of the cryogenic liquid (L) coming from said primary pump (4)
Data Source
AI summary
The invention relates to a cooling system (1) comprising at least: a Stirling heat pump (2) designed to cool an inlet gas (Ge) down to a cryogenic temperature so as to form a cryogenic liquid (L), a primary electric motor (3), intended to put said Stirling heat pump (2) into operation, a primary pump (4) intended to cause said cryogenic liquid (L) to circulate under pressure, and a cooling means (5) intended to cool said primary electric motor (3) with the aid of the cryogenic liquid (L) output by said primary pump (4). The invention is particularly suitable for the production of a cryogenic liquid and the applications thereof.