Self-dispersion nanofluid heat pipe

Abstract

The invention discloses a self-dispersion nanofluid heat pipe which comprises heat dissipation fins, a heat pipe housing, and an impeller, an air injection channel, a piston chamber, a pressurization chamber, a backflow channel, a nanofluid, a rotating shaft, a first gear, a second gear, shearing chambers, shearing blades and a boiling tank which are located in the heat pipe housing, wherein the air injection channel is located on the outer side of the piston chamber; the piston chamber is fixedly connected above the pressurization chamber; the backflow channel is formed between the pressurization chamber and an inner wall of the heat pipe housing; the shearing chambers are located in the backflow channel, and located on the outer side of the pressurization chamber; the shearing blades are located in the shearing chambers; the boiling tank is located below the pressurization chamber; the impeller is fixedly connected with the top end of the rotating shaft; the bottom end of the rotating shaft is fixedly connected with the first gear; the first gear is matched with the second gear; and the second gear is fixedly connected with the shearing blades. The nanofluid heat pipe can maintain the dispersion stability of the nanofluid effectively, and can disperse agglomerated particles selectively, so that the stability and the reliability of the nanofluid heat pipe can be improved.

Description

technical field [0001] The invention relates to a nanofluid heat pipe, in particular to a self-dispersing nanofluid heat pipe. Background technique [0002] Nanofluids are considered to have the potential to improve the energy efficiency of heat exchange systems. In current reports, nanofluids using simple substances such as carbon nanotubes, copper, aluminum, and nanoparticles such as metal oxides as media have greatly improved their heat transfer efficiency. However, the biggest challenge in the application of nanofluid engineering is that nanopowders suspended in nanofluids will agglomerate and settle, making nanofluids gradually degenerate into ordinary fluids. In the nanofluid heat pipe, due to the settlement of nanoparticles, the nanofluid inside the heat pipe loses its high heat transfer characteristics, and the agglomerates of nanoparticles may adhere to the boiling pool part of the heat pipe, resulting in an increase in the thermal resistance of the heat exchange wa...

AI Technical Summary

Problems solved by technology

The existence of this part of nanoparticle aggregates will not only weaken the excellent characteristics of nanofluids, such as micro-convection, high heat and mass transfer performance, low viscosity (compared to microparticle suspensions), etc., but also during the use of nanofluids, this Part of the agglomerates may become the agglomerated adsorption core to allow more nanoparticles to be adsorbed on it, resulting in a further decrease in the dispersion stability of the nanofluid.

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