Cooling device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing cooling devices with a freezing cycle have a high refrigerant amount in the dew condensation preventing pipe, leading to increased heat invasion and temperature distribution issues, which affect dew condensation performance and refrigerant usage.
Innovation Solution
The cooling device is configured with a divided condenser system, where the first condenser and second condenser are sequentially connected with the dew condensation preventing pipe, allowing a gas-liquid two-phase refrigerant flow, reducing the liquid ratio and refrigerant amount, and maintaining heat invasion comparable to the related art.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a refrigerant condensed by heat exchange in the condenser and having a high liquid ratio passes through the dew condensation preventing pipe, then the dew condensation preventing pipe can prevent dew condensation, but the liquid ratio in the dew condensation preventing pipe is increased and the amount of refrigerant is increased
Solution Approach 1:
The condenser is divided into a first condenser and a second condenser that are sequentially connected with the dew condensation preventing pipe. This segmentation allows the refrigerant to be cooled in stages, with the first condenser cooling the refrigerant before it enters the dew condensation preventing pipe, thereby reducing the liquid ratio in the pipe while maintaining dew condensation prevention performance.
2Quantity of substance
If the sequences of the condenser and the dew condensation preventing pipe are exchanged to allow a gas refrigerant to be introduced into the dew condensation preventing pipe, then the liquid ratio in the dew condensation preventing pipe is reduced and the amount of refrigerant is reduced, but the temperature of the gas refrigerant is higher than the condensing temperature and the amount of heat invaded into the refrigerant is increased
Solution Approach 1:
The first condenser performs preliminary cooling of the refrigerant before it enters the dew condensation preventing pipe. This preliminary action reduces the temperature difference between the refrigerant and the surrounding environment, thereby reducing the amount of heat invasion while maintaining a low liquid ratio in the pipe.
3Adaptability or versatility
If a carbon dioxide refrigerant in a supercritical state is released to the dew condensation preventing pipe, then the dew condensation preventing pipe can be disposed between radiators, but the temperature of the carbon dioxide refrigerant is changed during flow and a temperature distribution is generated in the dew condensation preventing pipe
Solution Approach 1:
The condenser is segmented into first and second condensers with the dew condensation preventing pipe disposed between them. This segmentation allows for better temperature control and more uniform heat exchange, reducing temperature distribution variations in the pipe while maintaining design flexibility.
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 configuration reduces the refrigerant amount in the freezing cycle, improves safety with natural refrigerants like R600a, and enhances environmental sustainability by minimizing heat invasion and temperature distribution variations in the dew condensation preventing pipe.
Implementation Method 1
a refrigerant condensed by heat exchange in the condenser
Implementation Method 2
the refrigerant condensed by heat exchange in the condenser and having a high liquid ratio
Implementation Method 3
dew condensation preventing pipe, a main pressure reducing means
Implementation Method 4
a dew condensation preventing pipe, a main pressure reducing means
Implementation Method 5
a main pressure reducing means
Data Source
Figure 1A~1C
Figure 2A~2C
Figure 3A~3B
AI summary
A cooling device including a freezing cycle including a compressor, a condenser, a pressure reducing means, and an evaporator is provided. In the cooling device, the condenser includes a first condenser and a second condenser independent from each other, the second condenser being positioned at a downstream side of the first condenser in a refrigerant channel, and the first condenser and the second condenser are connected to each other through a dew condensation preventing pipe.