High-efficiency photo-thermal resource utilizing device used for wheat planting

Abstract

The invention discloses a high-efficiency photo-thermal resource utilizing device used for wheat planting. The high-efficiency photo-thermal resource utilizing device comprises a greenhouse, the greenhouse is divided into a heat absorbing region on the upper portion and a planting region on the lower portion, when temperature is high in the daytime, water mist is sprayed inside the heat absorbingregion, a lot of heat is taken away when the water mist is evaporated into steam, the low-pressure steam generated by evaporation is absorbed by high-pressure steam generated by a solar heat collection evaporator in a steam spraying pump, sprayed water mist condenses mixed steam in a condensing box, a lot of heat is released, then the mixed steam is mixed with the water mist to form high-temperature hot water, and the hot water passes through a transverse buried pipe heat exchanger and then conducts circulating heating on soil; when temperature is low at night, a gravity heat pipe can bring heat stored in the soil into the planting region, in this way, wheat can grow at suitable temperature in the whole day, illumination resources can be stored in day time and utilized at night, and efficient circulation is realized.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to a high-efficiency photothermal resource utilization device for wheat planting. Background technique [0002] Wheat seeds can generally germinate at 4-37°C, the fastest germination temperature is 20-25°C, and the most suitable temperature for sowing is when the daily average temperature is 16-18°C. The lowest temperature for wheat germination is 0°C, and the highest temperature is 30-35°C. Modern planting often adopts greenhouse planting methods to reduce climate impact, but greenhouses are generally set up for the cold climate in winter. When the daylight time is too long or the temperature is high, the temperature in the greenhouse will exceed 100% because the heat is not easily lost. The highest temperature that crops can tolerate. During the use of greenhouses, there is such a problem: when the energy is too high during the day, cooling methods must be used, ...

AI Technical Summary

Problems solved by technology

Modern planting often adopts greenhouse planting methods to reduce climate impact, but greenhouses are generally set up for the cold climate in winter. When the daylight time is too long or the temperature is high, the temperature in the greenhouse will exceed 100% because the heat is not easily lost. The highest temperature that crops can tolerate

During the use of greenhouses, there is such a problem: when the energy is too high during the day, cooling methods must be used, and when the temperature is too low at night, heating methods must be used. How can the surplus energy in the greenhouse during the day be collected and released again at night, so that the planting environment in the greenhouse can be continuously maintained at a suitable growth temperature? It is a very important issue for my country's agricultural development

Although this invention can better ensure the maintenance of soil temperature, the heating and cooling methods are all completed through the air conditioning system, and the light and heat resources are only used as the heat storage source of the soil, which cannot make full use of the light resources. , and the degree of manual dependence is high, it is necessary to accurately set a large number of temperature sensors to make the system work

Images