Roof truss solar-collected type solar greenhouse

Abstract

The invention discloses a roof truss solar-collected type solar greenhouse, belongs to the technical field of protected agriculture engineering, and particularly relates to a solar greenhouse which utilizes excess solar thermal energy collected by a roof truss in daytime for nighttime heating or other purposes. The technical scheme comprises a heat collecting and releasing piping system consisting of a plurality of roof trusses, a thermal insulation water tank and the like, wherein each roof truss comprises principal rafters (1) and bottom chords (2), the principal rafters (1) and the bottom chords (2) are connected into closed loops by short pipes (3) at the top, the lower ends of all the principal rafters (1) are connected with a water supply main pipe (5), the lower ends of all the bottom chords (2) are connected with a backwater main pipe (7), the water supply main pipe (5) is connected with a submersible pump (11) in the thermal insulation water tank (10), and the backwater main pipe (7) is connected into the thermal insulation water tank (10) to form a pipe network for water circulation. The roof truss solar-collected type solar greenhouse is energy-saving, environmentally-friendly, pollution-free, few in used materials, low in cost, long in service life, and simple in operation control and maintenance, and also can be used for heating irrigation water and providing hot water for living and the like concurrently.

Description

technical field [0001] The invention relates to a roof truss solar heat collection type solar greenhouse, which belongs to the technical field of facility agricultural engineering, in particular to a solar greenhouse which utilizes the roof truss to collect excess solar heat energy during the day for heating at night or other purposes. Background technique [0002] At present, greenhouses are used in many areas of our country to produce various fruits, vegetables and flowers, especially in cold northern regions, solar greenhouses are widely used. Under normal circumstances, there is no auxiliary heating equipment in the solar greenhouse. If it encounters continuous cloudy or rainy and snowy days, the indoor temperature of many solar greenhouses at night cannot meet the needs of maintaining the normal growth of plants, resulting in slow plant growth and affecting the quality of its products. Yield and quality, production efficiency is difficult to improve, and severe frost da...

AI Technical Summary

Problems solved by technology

Under normal circumstances, there is no auxiliary heating equipment in the solar greenhouse. If it encounters continuous cloudy or rainy and snowy days, the indoor temperature of many solar greenhouses at night cannot meet the needs of maintaining the normal growth of plants, resulting in slow plant growth and affecting the quality of its products. It is difficult to improve the yield and quality, and the production efficiency is difficult to improve. In severe cases, freezing damage occurs, causing huge economic losses to horticultural producers

[0003] In order to increase the temperature in the greenhouse in winter, people have tried different methods, but in actual production, if the traditional heating method is used, it not only increases the production cost, wastes a lot of energy, but also pollutes the environment; The new heating system of renewable energy such as thermal energy has high investment and operating costs, or complicated installation, and basically has not been put into practical application, and has stopped at the research stage

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