| 摘要 |
An agricultural hot air system is provided to enable hot air to be uniformly circulated within a greenhouse and to prevent agricultural products from being directly exposed to the hot air. An agricultural hot air system(20) comprises a centrifugal blower(30), a nozzle(40), an electronic heater(50) and a fixing unit(60). A casing(32) of the centrifugal blower includes an inlet port(322) perpendicular to an outlet port(324). An impeller(34) operated by a drive motor(36) is installed inside the casing. The nozzle having an inlet(42) and an outlet(44) is tube-shaped. A fixing end(524) with a screw thread is protruded from the electronic heater. A fixing hole(622) is formed on the external surface of a fixing nut(62). A fixing bolt(64) is fixed to the fixing hole of the fixing nut. The heater and blower are connected to an external power supply unit. A controller controls the operation of the heater and blower. The hot air system is arranged at some distance from the floor of a greenhouse.
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