Liu Bendong, Ma Chenxu, Yang Jiahui, Li Desheng, Liu Haibin
Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China.
Electrical and Mechanical College, Beijing Vocational College of Agriculture, Beijing 102208, China.
Micromachines (Basel). 2021 Aug 29;12(9):1040. doi: 10.3390/mi12091040.
Thermal bubble-driven micropumps have the advantages of high reliability, simple structure and simple fabrication process. However, the high temperature of the thermal bubble may damage some biological or chemical properties of the solution. In order to reduce the influence of the high temperature of the thermal bubbles on the pumped liquid, this paper proposes a kind of heat insulation micropump driven by thermal bubbles with induction heating. The thermal bubble and its chamber are designed on one side of the main pumping channel. The high temperature of the thermal bubble is insulated by the liquid in the heat insulation channel, which reduces the influence of the high temperature of the thermal bubble on the pumped liquid. Protypes of the new micropump with heat source insulation were fabricated and experiments were performed on them. The experiments showed that the temperature of the pumped liquid was less than 35 °C in the main pumping channel.
热气泡驱动的微型泵具有可靠性高、结构简单和制造工艺简便等优点。然而，热气泡的高温可能会破坏溶液的某些生物或化学性质。为了减少热气泡高温对泵送液体的影响，本文提出了一种采用感应加热的热气泡驱动隔热微型泵。热气泡及其腔室设计在主泵送通道的一侧。热气泡的高温通过隔热通道中的液体进行隔热，从而降低了热气泡高温对泵送液体的影响。制作了带有热源隔热的新型微型泵原型并进行了实验。实验表明，主泵送通道中泵送液体的温度低于35℃。
