Multi-energy complementing heat pump heating system for north of China in winter

Abstract

A multi-energy complementing heat pump heating system for the north of China in winter comprises a wind driven generator, an electric water heater, a tubular solar collector, a solar constant-temperature biogas digester, a gas storing device, a biogas hot water tank, a heat storage water tank, an air heat exchanger, stop valves and a high-temperature water tank. The multi-energy complementing heat pump heating system based on solar energy, wind energy, air energy and biogas energy is provided, the four clean and renewable energy sources are used for generating heat energy, heat is stored in hot water in the heat storage water tank, terrestrial heat is provided for families and factories in the north of China in cold winter, the multiple energy sources have complementary advantages, energy is saved, the environment is protected, efficiency is high, and the multi-energy complementing heat pump heating system can serve as a replacement scheme for a traditional floor heating system.

Description

technical field [0001] The invention relates to the field of multi-energy complementary heat pump heating systems in northern winter, in particular to a multi-energy complementary heat pump heating system in northern winter. Background technique [0002] In northern my country, heating is required in winter, and nearly 1 / 3 of the year belongs to the heating season. At present, traditional heating methods are widely used, namely, urban centralized heating network heating, community decentralized heating and household heating. Among them, urban centralized heating network mostly adopts coal-fired, gas-fired boilers, coal-fired cogeneration or gas-steam combined cycle thermal power plants, etc. Although its thermal efficiency can reach 70-95%, this heating method that relies on burning coal and natural gas It still runs counter to the purpose of improving the environment and reducing the consumption of fossil energy. Compared with the central heating method, the decentralized ...

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Problems solved by technology

Among them, urban centralized heating network mostly adopts coal-fired, gas-fired boilers, coal-fired cogeneration or gas-steam combined cycle thermal power plants, etc. Although its thermal efficiency can reach 70-95%, this heating method that relies on burning coal and natural gas It still runs counter to the purpose of improving the environment and reducing the consumption of fossil energy. Compared with the central heating method, the decentralized heating system has the advantages of less investment and faster construction period, but it is prone to incomplete combustion due to the small combustion chamber of the boiler. , without nitrogen reduction measures, resulting in low-altitude emissions, excessive concentrations of harmful gases such as nitrogen oxides and nitrogen monoxide, and more serious pollution to the environment. At the same time, it is still a heating method that consumes fossil fuels; The transformation of small coal stoves to micro gas boilers or gas water heaters has greatly reduced the degree of environmental pollution, but the thermal efficiency of micro gas boilers or gas water heaters is only about 70%

In rural areas, most households are still using the most primitive coal and straw stoves and kangs for heating, which have low combustion efficiency, low heating efficiency, high pollution, and high heating costs. The resulting energy consumption and environmental pollution problems are more serious

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