Efficient and energy-saving soil heating system

Abstract

The invention provides an efficient and energy-saving soil heating system. The soil heating system comprises a heat pipe exchanger, a fermentation tank, a high-temperature container heat exchange device, a heat storage water tank and a circulating water pump; one end of the circulating water pump is connected with the heat storage water tank, the other end of the circulating water pump is connected with the fermentation tank, and the fermentation tank is connected with the heat storage water tank through a pipeline, so that a loop is formed; and one section of the heat pipe exchanger is arranged in a soil heating area, and another section of the heat pipe exchanger is arranged in the heat storage water tank. The problems that an existing single-stage solar heating system cannot continuously supply heat at night, and energy consumption, instability, environmental pollution and economical problems are caused by manners such as electric heating, combustion and heat pumps in other complementary heating systems are solved. According to the efficient and energy-saving soil heating system, the fermentation tank is formed by raw materials such as straw and excrement which are low in cost and easy to obtain, high-temperature gas exhausted by the fermentation tank and oxygenolysis heat production of microorganisms of the fermentation tank are fully utilized, the characteristics of efficient heat transfer and self-adaptive work adjustment of the heat pipe exchanger are combined, water serves as an intermediate heat transfer medium, and therefore the efficient and energy-saving systemis formed.

Description

Technical field[0001]The invention relates to a high-efficiency and energy-saving soil heating system, belonging to the technical field of soil heating systems.Background technique[0002]With the growing popularity of growing fruits and vegetables in greenhouses, the soil temperature is too low in winter, and the roots of fruits and vegetables in greenhouses are susceptible to low temperature frostbite, which is not conducive to the growth of fruits and vegetables. Therefore, the development of soil heating technology has become more important. Most rural areas in northern my country use kangs, stoves, and coal-fired boilers for heating. Traditional rural heating methods have low heat conversion rates, huge energy waste, uneven soil heating, and serious environmental pollution. Therefore, it is urgent to promote in northern rural areas Clean heating technology. At present, clean heating measures mainly include “coal-to-gas”, “coal-to-electricity” and renewable energy. Although the “c...

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Problems solved by technology

[0004] In order to solve the energy consumption, instability, environmental pollution and economic problems caused by the current single-stage solar heating system that cannot continue heating at night and other complementary heating systems such as electric heating, combustion, and heat pumps, the present invention proposes a high-efficiency The energy-saving soil heating system uses cheap and easy-to-obtain raw materials such as straw and manure to form a fermentation tank, and makes full use of the high-temperature gas discharged from the fermentation tank and the heat generated by the oxidation and decomposition of its own microorganisms, combined with the high-efficiency heat transfer of the heat pipe heat exchanger and other The characteristics of self-adaptive work adjustment, and water as the intermediate heat transfer medium, and then form a high-efficiency and energy-saving system

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