Nested Gas-Liquid Separator for EV AC Heat Exchange Efficiency
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Solution Overview
Problem
The air conditioning system of electric vehicles has a low energy efficiency ratio and high energy consumption, affecting the endurance of these vehicles.
Innovation Solution
A gas-liquid separator with a housing, middle cylinder, and inner cylinder, featuring specific flow channels for heat transfer medium circulation, enhances heat exchange efficiency by separating gaseous and liquid portions, improving superheating and supercooling degrees, and reducing compressor power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a conventional gas-liquid separator is used in the air conditioning system, then the system structure is simple, but the energy efficiency ratio is low and energy consumption is high
Solution Approach 1:
The patent applies nested structure by placing the inner cylinder inside the middle cylinder, which is in turn placed inside the housing. The first flow channel is formed between the housing and middle cylinder, the second flow channel between the middle and inner cylinders, and the third flow channel inside the inner cylinder. This nested arrangement enables multiple heat exchange pathways within a compact structure, improving energy efficiency without excessive complexity
Solution Approach 2:
The separator is segmented into multiple functional zones through the housing, middle cylinder, and inner cylinder divisions. Each cylinder serves specific flow channels for different purposes: the first flow channel for gas-liquid separation, the second for heat exchange between gaseous and liquid heat transfer media, and the third for cooling the liquid heat transfer medium. This segmentation allows optimized energy efficiency through targeted heat exchange in each zone
2Productivity
If heat exchange between heat transfer media is enhanced, then cooling capacity is improved, but device complexity increases
Solution Approach 1:
The nested cylinder structure creates concentric heat exchange pathways where the first flow channel (between housing and middle cylinder), second flow channel (between middle and inner cylinders), and third flow channel (inside inner cylinder) are arranged in nested layers. This allows heat exchange between gaseous and liquid heat transfer media to occur across multiple thermal zones simultaneously, enhancing cooling capacity while maintaining a relatively compact and integrated structure
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 solution improves the energy efficiency ratio of the air conditioning system, enhancing the cooling capacity and reducing power consumption, thereby increasing the endurance of electric vehicles.
Implementation Method 1
the heat transfer medium in the third flow channel exchanges heat with the heat transfer medium in the second flow channel
Implementation Method 2
the heat transfer medium in the third flow channel exchanges heat with the heat transfer medium in the second flow channel
Implementation Method 3
the heat transfer medium in the second flow channel exchanges heat with the heat transfer medium in the first flow channel
Implementation Method 4
the heat transfer medium in the second flow channel exchanges heat with the heat transfer medium in the first flow channel
Implementation Method 5
the liquid portion of the heat transfer medium in the second flow channel will absorb the heat of the heat transfer medium in the third flow channel and evaporate
Implementation Method 6
the liquid portion of the heat transfer medium in the second flow channel will absorb the heat of the heat transfer medium in the third flow channel and evaporate
Implementation Method 7
when the heat transfer medium in the first flow channel enters the second flow channel through the separation recess, a liquid portion of the heat transfer medium will be stay along the wall of the middle cylinder, so that a gaseous portion and the liquid portion in the heat transfer medium are separated here
Data Source
AI summary
Provided are a gas-liquid separator and an air conditioning system of a vehicle. The gas-liquid separator includes: a housing having a liquid inlet, a liquid outlet, an air inlet and an air outlet; a middle cylinder arranged in the housing and provided with a separation recess, a first flow channel formed between an inner surface of the housing and an outer surface of the middle cylinder is configured to communicate the air inlet with the separation recess; an inner cylinder that is at least partially accommodated in the middle cylinder and forms a second flow channel together with an inner surface of the middle cylinder, the second flow channel being configured to communicate the separation recess with the air outlet; a third flow channel formed in the inner cylinder is configured to communicate the liquid inlet with the liquid outlet.