Warm-in-winter energy-saving solar greenhouse

Abstract

The invention discloses a warm-in-winter energy-saving solar greenhouse, which consists of a left wall body, a right wall body, a rear wall body, and a transparent daylighting greenhouse surface consisting of a steel frame girder structure and a greenhouse membrane. The azimuth angle of the greenhouse is 5 degrees deflected towards the west from the south of the true meridian; the greenhouse is 55 to 60 meters long; the inner horizontal width of the greenhouse is 7.0 to 7.2 meters, wherein the horizontal width of a front sloping surface is 5.5 to 6.0 meters, and the horizontal width of a rearsloping surface is 1.2 to 1.7 meters; a greenhouse ridge is 3.2 to 3.4 meters high; the greenhouse is integrally dug downwards by 0.5 to 0.6 meters; the left and right wall bodies of the greenhouse are 2 meters thick; lateral lines of the left and right wall bodies are perpendicular; the inner side of the rear wall is 2.1 to 2.3 meters high; the upper part of the rear wall body is narrowest and the narrowest part is 2 meters wide; the inner wall line of the rear wall body is basically perpendicular, while the outer wall line is naturally formed into a slope by earth mass; the front base angleof the daylighting greenhouse surface is 63 degrees, and the angle of the rear sloping surface is 35 to 40 degrees; the inclination angles of the positions of the daylighting greenhouse surface whichare vertically 0.75, 1.75, 2.75 and 3.75 meters away from the front base angle are 39 degrees, 25 degrees, 18 degrees and 12 degrees respectively; and the rear sloping surface is 0.6 to 0.65 meters thick. The warm-in-winter energy-saving solar greenhouse of the invention is suitable to be built in cold areas of a north latitude 39 to 41 degrees and can utilize solar radiation to maintain the normal growth of warm season vegetables to perform out-of-season culture on the warm season vegetables. The invention also comprises a method for building the greenhouse.

Description

technical field [0001] The invention belongs to the technical field of facility agriculture cultivation, and relates to a solar greenhouse, in particular to a warm-winter type solar energy-saving greenhouse suitable for construction in cold regions of 39° to 41° north latitude, and also relates to a construction method of the energy-saving greenhouse. Background technique [0002] The research on vegetable facilities in protected areas in my country began in the 1950s and 1960s, and has developed vigorously in the past ten years. At present, solar greenhouses have been widely used in the vast rural areas of our country. Through the solar greenhouse, fresh vegetables and melons and fruits have been cultivated against the seasons to meet the needs of consumers. [0003] Although the design of solar greenhouses is continuously improved, the existing solar greenhouses still have the problems of unsatisfactory lighting and thermal insulation effects. Chinese patent CN1954660A "...

AI Technical Summary

Problems solved by technology

However, due to China's vast geography, the regional climate varies greatly, especially in the region of 39-41° north latitude, where the winter is very cold and the temperature difference between day and night is large. Still can’t survive the winter, can’t realize off-season production and go on the market before and after the Spring Festival, and the production status of high investment and low output has appeared. The large ups and downs have dampened the production enthusiasm of some vegetable farmers and hindered the development of solar greenhouses