Energy-saving and anti-freezing power-generation solar water heater and energy-saving and anti-freezing method

Abstract

The invention relates to an energy-saving and anti-freezing power-generation solar water heater and an energy-saving and anti-freezing method, and belongs to the technical field of solar heat collectors. According to the technical scheme, a water tank (2) is of a downwards-arranged structure and is arranged at a low position, and a power-generation solar heat collector (4) is arranged at a high position; a water-tank water return port (10) is formed in the upper portion of the water tank (2), and a water tank outlet (7) is formed in the lower portion of the water tank (2); the power-generationsolar heat collector (4) is arranged at the top of the water tank, a heat collector water outlet (9) is formed in the upper portion of the power-generation solar heat collector (4), and a heat collector water inlet (8) is formed in the lower portion of the power-generation solar heat collector (4); the heat collector water outlet communicates with the water-tank water return port, the water tankoutlet communicates with the heat collector water inlet, and a water pump (6) is arranged between the water tank outlet and the heat collector water inlet; and an electric heater (13) is arranged at the bottom of an inner cavity of the water tank (2). According to the energy-saving and anti-freezing power-generation solar water heater and the energy-saving and anti-freezing method, the water tankis arranged at the low position, so that the anti-freezing effect in winter is good, the manufacturing and mounting cost is low, the heat efficiency is high, the heat loss is small, energy is comprehensively used, and the power-generation solar water heater is convenient to use and practical.

Description

technical field [0001] The invention relates to an energy-saving and anti-freezing power generation solar water heater and an energy-saving and anti-freezing method, belonging to the technical field of solar heat collection. Background technique [0002] At present, the solar heat collectors commonly used by people have low conversion efficiency of solar energy, resulting in energy waste; they cannot simultaneously generate solar power, which is inconvenient to use. Chinese patent 2017202219065 solves the above-mentioned problems with the power-generating solar collector. However, the problem of antifreezing of solar water heaters in winter has not been solved, and the cost of production and installation is high. The water tanks are all set at high places. Strong support and safety protection measures; In addition, the energy saving effect is not good, the thermal efficiency is low, the heat loss is large, and energy cannot be comprehensively utilized. Contents of the inve...

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Problems solved by technology

[0002] At present, the solar collectors commonly used by people have low conversion efficiency of solar energy, resulting in energy waste; solar power cannot be generated at the same time, and it is inconvenient to use

Chinese patent 2017202219065 solves the above-mentioned problems with the power-generating solar collector. However, the problem of antifreezing of solar water heaters in winter has not been solved, and the cost of production and installation is high. The water tanks are all set at high places. Strong support and safety protection measures; In addition, the energy saving effect is not good, the thermal efficiency is low, the heat loss is large, and energy cannot be comprehensively utilized

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