Solar low-temperature-difference power generation device

Abstract

The invention relates to a solar low-temperature difference power generation device, including a solar hot water heat collection and heat storage subsystem, a split gravity heat pipe heat transfer subsystem, and an integrated fully enclosed steam turbine and permanent magnet generator subsystem; the solar hot water The heat collection and heat storage subsystem includes solar heat collection devices, pipelines, heat storage tanks, cold storage water tanks, and circulation pumps. The heat storage tanks and cold storage water tanks are of different heights and temperatures. At the high position, the bottom of the high cold storage tank is at least higher than the top of the low hot storage tank; cold water is stored in the cold storage tank, the top of the cold storage tank is provided with a water outlet pipe, and the bottom of the cold storage tank is provided with a water supply pipe; The heat storage tank is connected; the three subsystems are connected to each other to form a heat collection, heat storage, heat transfer and power generation module. The invention has the advantages of simple and reasonable structure, low cost, uses water as energy storage body, does not need storage battery, and has high power generation efficiency.

Description

technical field [0001] The invention belongs to the field of solar power generation, and in particular relates to a solar low temperature difference power generation device. Background technique [0002] Solar energy is one of the most important renewable energy sources, and solar low-temperature differential power generation is the most competitive solar power generation technology after photovoltaic power generation. Solar low-temperature difference power generation module and system means that the overall operating temperature of the system is relatively low, and the second means that the operating temperature range is small to distinguish solar high-temperature power generation. Solar low-temperature difference power generation can realize building integration, modularization and miniaturization, and can form a completely independent distributed local energy system. Technologies related to solar low temperature difference power generation include ocean temperature diffe...

AI Technical Summary

Problems solved by technology

[0005] (1) The photoelectric conversion efficiency is low, and the photoelectric conversion rate of common silicon crystal modules is only ~15%;

[0006] (2) Intermittent, unstable, unable to generate electricity at night and on cloudy days;

[0007] (3) High cost of power generation;

[0009] (5) The storage and discharge system is required, and the battery life is generally only 3 to 5 years, and it will cause environmental pollution;

[0010] (6) The production process of silicon crystal materials consumes a lot of energy and causes serious pollution

[0014] The patent application number 200910072534.4 proposes a geothermal energy or solar thermal power generation method and application scheme, involving dozens of devices and engineering facilities including cooling towers, with complex structures, which have very high requirements for the stability of equipment operation and system reliability. high

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