Controlling Electric Heaters
The present invention relates to a new type of agricultural plastic greenhouse film that is beneficial for the cultivation of crops, especially vegetables, fruit trees, and flowers. By adding inorganic-organic mixed fluorescent agents, the plastic greenhouse film can possess two light functions: absorbing ultraviolet light in the wavelength range of 200-400nm and green light in the wavelength range of 480-570nm from natural light, which are unfavorable for crop growth and development, and converting them into the light most needed for crop photosynthesis……
"Knowledge Output of Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences"
An Intelligent Control Heating and Hot Water Supply Device
The utility model relates to an intelligent control heating and hot water supply device. The heat source of the device is composed of a solar water heater and an electromagnetic heater; the chassis is composed of a heating body, an intelligent controller and circuit board, and a heat exchanger; the heating body is provided with a heating coil, the upper end of the heating body is connected to the solar water heater through a solar water outlet pipeline, and the lower end is connected to the water outlet pipeline and outlet water through a water pump and an electric control valve...
A Field-Type High-Power Electric Heater Graded Control System
The utility model provides a field-type high-power electric heater graded control system, including an electric heating unit and a heating core unit. The electric heating unit includes a first heating control box and a second heating control box, and the heating core unit includes an instrument wiring...
Note: The above information and technical parameters are published by Yangzhou Darui Electric Co., Ltd.
