Abstract
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.
Highlights
To reduce the influence of the high temperature of the thermal bubbles on In order to reduce the influence of the highmicropump, temperaturethis of the thermal bubbles on the the pumped liquid in the thermal bubble-driven paper proposes a kind pumped liquid in the thermal bubble-driven micropump, this paper proposes a kind of heat insulation micropump driven by thermal bubbles with induction heating
The new micropump studied in this paper has the advantages of small heat influence of thermal bubble on the pumped liquid, heat has the advantages of small heat influence of thermal bubble on the pumped liquid, heat source insulation, simple structure and easy integration
As long as the volume of the heat insulation channel is greater than the variHere, R is the equivalent diameter of the maximum thermal bubble, R is the equivability of the bubble volume, the high temperature liquid will not enter the main channel
Summary
All thermal bubble-driven micropumps of the type mentioned above function by the thermal bubble directly driving the pumped liquid. The heat source of the thermal bubble was sulated from the pumped liquid to avoid the high temperature damage to biological or insulated from the pumped liquid to avoid the high temperature damage to biological chemical substances in the solution. The new micropump studied in this paper has the advantages of small heat influence of thermal bubble on the pumped liquid, heat has the advantages of small heat influence of thermal bubble on the pumped liquid, heat source insulation, simple structure and easy integration.
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