Vacuum tube-subfebrile tube array solar heat collection-heat accumulation integral device applying combined paraboloid condenser

Abstract

The invention provides a vacuum tube-subfebrile tube array solar heat collection-heat accumulation integral device applying a combined paraboloid condenser, which belongs to the field of solar energyutilization. The integral device consists of a combined paraboloid condenser, a glass vacuum tube, a panel subfebrile tube array, heat transfer enhancement fins, heat accumulation material, a materialstorage tank and a heat removal water tube. When sunlight enters the combined paraboloid condenser, the vacuum tube firstly receives light rays irradiating on the vacuum tube by the sun, the other light rays are converged on the vacuum tube by the condenser and then are also collected by the vacuum tube; the panel subfebrile tube array quickly transmits heat generated by the vacuum tube to the PCM for heat accumulation; when heat is needed, the panel subfebrile tube array as a heat conductor also can be used for extracting heat stored in the PCM through the fluid in forced convection in a flat water pipe, so that the stored solar energy can be quickly and conveniently utilized. The integral device has the advantages that through utilizing the combined paraboloid condenser, the heat collection temperature of the vacuum tube and the collector tube can be increased, and the heat energy quality is improved.

Description

technical field [0001] The invention relates to a combined parabolic concentrating vacuum tube-micro heat pipe array solar heat collection-heat storage integrated device, which belongs to the field of solar heat utilization. Background technique [0002] Solar energy is a kind of green energy, which can be used as auxiliary energy to reduce the consumption of fossil energy, thereby reducing air pollution and reducing the consumption rate of traditional energy. In solar energy utilization technology, photothermal utilization is a simple and common form of application. However, due to its low energy density, solar energy appears intermittently. It is necessary to add necessary heat storage means to the solar energy system so that the heat energy supply and demand can be achieved in a timely manner. matched in strength. [0003] Solar vacuum tubes are a heat collection technology commonly used in solar heat utilization, but only the sunny side participates in heat exchange whe...

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Problems solved by technology

[0004] In addition, in traditional solar energy systems, the heat collector and the heat storage are often arranged separately, and the heat transfer fluid transports heat between them, which inevitably causes heat loss along the way and the contact between the heat transfer fluid and the heat collector or Secondary heat exchange heat loss between heat storage tanks, which makes the overall efficiency of the system low

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