Mini throttling refrigeration system based on novel gas compression device

Abstract

The invention belongs to the field of mini pumps and refrigeration system equipment, and particularly relates to a mini throttling refrigeration system based on a novel gas compression device. The novel gas compression device is composed of an upper cover, an upper pump body, a lower pump cover, a lower cover, sealing rings, wheel type valves, an inlet valve and piezoelectric vibrators; the piezoelectric vibrators and the sealing rings are in press joint through bolts; a center hole is formed in the center of each piezoelectric vibrator, and the wheel type valves are bonded to the centers of the piezoelectric vibrators; an upper cover pump cavity, an upper pump cavity, a lower pump cavity and a lower cover pump cavity are composed of the upper cover, the lower cover, the upper pump body, the lower pump body, the wheel type valves, the sealing rings, the upper piezoelectric vibrator, the middle piezoelectric vibrator, the lower piezoelectric vibrator and the wheel type valves of the piezoelectric vibrators, and pump cavity multi-level compression is achieved; an outlet runner is formed above the upper cover pump cavity; and an inlet runner communicates with the lower cover pump cavity through the inlet valve, and the inlet runner and the outlet runner are connected with a cooling part to form the mini throttling refrigeration system. The mini throttling refrigeration system hasthe features and advantages that the provided mini throttling refrigeration system is high in integration, low in power consumption, free of electromagnetic interference / impacts / noise and prone to microminiaturization.

Description

technical field [0001] The invention belongs to the field of micro-pumps and refrigeration system equipment, in particular to a micro-throttle refrigeration system based on a novel gas compression device. Background technique [0002] In recent years, with the advancement of manufacturing and processing technology, especially the rapid development of microelectromechanical systems (MEMS), micropumps have been widely used in life sciences due to their advantages such as precise control, portability, low power consumption, and small size integration. , biology and microfluidics. With the gradual maturity of liquid micro pump technology, the development of micro gas pumps and micro gas compression devices has become a new focus. [0003] In the research of electronic technology, infrared detection technology, high-temperature superconducting technology and low-temperature material science, many components need to work normally in a certain low temperature environment, so as to...

AI Technical Summary

Problems solved by technology

However, because the one-way valve of the valved micropump is a passive valve that can only act after the change of gas pressure, the opening and closing of the valve lag behind the deformation of the driving parts that cause the pressure change in the pump chamber, resulting in the micropump under certain conditions. The response of the valveless micropump is poor, which affects its working performance; and the valveless micropump is prone to more backflow phenomenon due to the lack of one-way valve control during operation, so the output pressure of the valveless micropump will not be too high, which is not suitable for microgas compressors. use

Therefore, the existing miniature gas compressors cannot be well adapted to the miniature throttling refrigeration system

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