A Nanofluid Heat Collector with Helically Strengthened Heat Pipes

Abstract

The invention discloses a nanometer-fluid heat collector with a spiral-shaped reinforced heat pipe. The nanometer-fluid heat collector comprises a phase change heat storage box and a heat collection unit. The heat collection unit comprises one or more vacuum heat conduction pipes. The vacuum heat conduction pipes comprise closed heat pipes. Heat collection layers sleeve one ends, namely, the heatpipe evaporation ends, of the heat pipes. The other ends, namely, heat pipe condensation ends, of the heat pipes are inserted into the phase change heat storage box. Spiral reinforced condensers are arranged in the heat pipes. The heat pipes are filled with nanometer fluid as a heat conduction working medium. According to the nanometer-fluid heat collector with spiral-shaped reinforced heat pipe,the solar heat collection efficiency can be effectively improved by taking the nanometer fluid as the working medium.

Description

technical field [0001] The invention belongs to the technical field of solar energy heat exchange, in particular to a nanofluid heat collector with a spiral reinforced heat pipe. Background technique [0002] As an ideal clean energy, solar energy has dual significance for environmental protection and energy utilization. At present, the fields of utilization of solar energy mainly include photovoltaic power generation, thermal power generation and direct heat utilization. The limitation is that solar energy can only be utilized during the day, and the conversion efficiency is very low. Therefore, improving solar heat collection efficiency is one of the important ways to solve these limitations. [0003] The patent document (CN 1932410A) proposes a nanofluid solar window collector. Its main scheme is to use different nanofluids to utilize solar radiation in sub-bands, multi-forms, and all-bands. However, the disadvantage of this method is that the heat dissipation rate is to...

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Problems solved by technology

[0003] The patent document (CN 1932410A) proposes a nanofluid solar window collector. Its main scheme is to use different nanofluids to utilize solar radiation in sub-bands, multi-forms, and all-bands. However, the disadvantage of this method is that the heat dissipation rate is too high. High, can not achieve the purpose of heat collection

[0004] The patent document (CN 203813716 U) proposes a cooling high-power concentrating solar photovoltaic thermal system based on nanofluid microchannels. The main solution is to use nanofluid microchannel subsystem cooling methods to achieve high-efficiency photovoltaic effects, but This method has the disadvantage of nanofluid clogging the microchannel

[0005] The patent document (CN 102434981 A) proposes a flat-plate heat pipe collector, the main solution of which is to use a flat-plate heat pipe collector to achieve efficient utilization of solar energy, but this method has the disadvantages of high manufacturing difficulty and weak theoretical basis

[0006] It can be seen from the current situation that there are currently no products with a high comprehensive performance index in the solar collector market, and further research and improvement of technology is very important

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