​Stirling-Villani (SV) refrigerator working principle, in MAIPT machinery, but also have the opportunity to apply to the production

Stirling-Villani (SV) refrigerator working principle, in MAIPT machinery, but also have the opportunity to apply to the production, the reality of the SV refrigerator principle is also very much, now according to the specific situation to explain the SV refrigeration structure

Stirling cycle: Stirling refrigerator is based on Stirling cycle work, by isothermal compression, isothermal expansion and isothermal cooling four processes. A certain amount of working medium is isothermal compressed at low temperature, and then absorbs heat from the regenerator at equal volume, and then expands at high temperature to do work, and finally releases heat to the regenerator at equal volume to complete a cycle. During the expansion process, the working medium absorbs heat from the cold end to achieve the cooling effect.

Villemere cycle improvement: Villemere has improved on the basis of the Stirling cycle by using two heat sources with different temperatures, making the cycle process more similar to the Carnot cycle and improving the refrigeration efficiency. Through the coupling of a heat engine cycle and a refrigeration cycle, the heat engine is driven by a high temperature heat source, and the work output by the heat engine is used to drive the refrigeration cycle to achieve the purpose of absorbing heat from the low temperature heat source and discharging heat from the high temperature heat source.

peculiarity

High efficiency and energy saving: The cycle process of the SV refrigerator is relatively close to the Carnot cycle, which theoretically has a high refrigeration efficiency and can save energy to a certain extent.

Low vibration and low noise: Compared with some traditional chillers, its operation process is more stable, low vibration and noise levels, suitable for places with high environmental noise and vibration requirements.

High reliability: relatively simple structure, fewer moving parts, reduce the failure caused by parts wear and other problems, improve the reliability and stability of operation, low maintenance costs.

Strong adaptability: It can use a variety of working media, such as helium, hydrogen, etc., which can adapt to different working environments and refrigeration needs, and can achieve refrigeration in different temperature ranges such as low temperature and deep low temperature.

Application scenario

Aerospace field: Due to its low vibration and high reliability, it can be used for cooling electronic equipment of satellites, spacecraft, and infrared detector, etc., to ensure the normal operation of equipment in the space environment.

Low temperature physics research: to provide a low temperature environment for low temperature physics experiments, such as for superconductivity research, quantum physics experiments, etc., to help scientists create extremely low temperature conditions to observe and study the special physical properties of substances.

Medical field: It can be used for refrigeration of medical equipment, such as superconducting magnet cooling in magnetic resonance imaging (MRI) equipment, cryogenic freezing treatment equipment, etc., to ensure the performance and treatment effect of medical equipment.

High-end electronic equipment cooling: some high-performance electronic devices, such as high-power lasers, high-power integrated circuits, etc. are cooled to prevent their performance from decreasing or damaging due to overheating, and improve the stability and service life of electronic equipment.