Optimization Design and Experiment of Cultivation Device of Hydraulic Circulation Elevated Facilities
The cultivation mode of elevated facilities improves the crop yield and product quality of the greenhouse.Ac-cording to the shade problem of fixed elevated facilities,by determining the light shading change of the cultivation devices of 30°,40°,50° and 60° from different angles,the optimal elevated cultivation shelf angle based on light factors is deter-mined to be 50°.In order to solve the disadvantages of excessive angle of the fixed elevation facilities and insufficient illu-mination of the underlying crops,this paper used the pressure of water in the greenhouse temperature control pipeline sys-tem,an automatic circulation viaduct powered by water turbine is innovatively designed,and it analyzed the structure composition and working principle.The 3D model was designed by the SolidWorks software.The hydraulic pressure and velocity change of different types of impeller models were analyzed by Fluent simulation and determines that the double-linear model is the optimal impeller selection.The device was designed to rotate the cultivation tank around the bracket uniformly,providing a new idea for the frame design of the elevated facilities.While creating good light conditions,it re-duced the energy consumption,which had great economic benefits,and had certain promotion and application value in the actual production.
cultivation device of elevated facilitieshydraulic circulationoptimization design