Multiple-temperature-gradient utilizing system using solar heat collection

Abstract

The invention discloses a multiple-temperature-gradient utilizing system using solar heat collection. According to the system, three temperature storage water tanks with water of different temperatures contained are adopted, distribution of the water of different temperatures in all the water tanks is adjusted in an optimized mode, hence, gradient utilization can be acheived, and the cooling and heating requirements can be met. Domestic hot water of two different temperatures can be provided by the system, the cooling or heating requirement and the anti-freezing requirement of the radiation tail end of a capillary tube under different season conditions can be met, and thus the comfort, high efficiency and safety are guaranteed. The solar heat utilization and thermoelectricity integration combined supply technology is adopted in the system. The device is provided with a novel solar thermal collector-photovoltaic / photo-thermal collector (PVT) with photovoltaic power generation and solar low-temperature heat utilization integrated. The device comprises a solar high-temperature collector end, a solar PVT intermediate temperature collector end, a lithium bromide absorption type refrigeration low-temperature water storage end, an indoor capillary tube cooling and heating radiation end, a winter anti-freezing exhausting pipeline protection end and a biomass supplementary heat source and domestic hot water making end.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of solar energy and biomass low-carbon energy, in particular to a device that uses low-carbon energy to generate water of different temperatures and utilizes it efficiently. Background technique [0002] Solar energy is a kind of clean energy. The development and utilization of solar energy can not only reduce the pollution caused by burning conventional energy, but also alleviate the energy shortage. PVT (photovoltaic / photothermal) collectors use lamination or adhesive technology to organically combine solar cells or components with solar collectors. When solar cells generate electricity, the proportion of incident solar energy converted into electrical energy is about 15%. Most of the rest of the energy is converted to heat, which is recycled through water heat exchange. It not only reduces the temperature of the photovoltaic panel, improves the power generation efficiency, bu...

AI Technical Summary

Problems solved by technology

It solves the problem of absorption cooling heat source and domestic hot water supply in summer; and solves the problem of providing domestic hot water with different temperatures in winter to meet the different needs of users in winter

The system of the present invention also solves the problem of water freezing in pipelines by emptying the water in the solar heat collector and PVT heat collector system through the system device without using antifreeze, so that the device can be operated safely and reliably in winter

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