| 摘要 |
The auto-revolving hydro-automatic irrigative system with rotative function of the artificial rain devices consists of two tubular pipes, the main tubular pipe, and the supplementary tubular pipe, along which are assembled hydro-automatic valves with artificial rain devices, of an adjustable well with stop valves at the beginning of the two tubular pipes and of at least one water-air container connected to the supplementary tubular pipe. The top part of the main tubular pipe system for artificial rain is connected via a pipe to an outflow valve, which presents tubular branches for contact with the atmosphere and the supplementary tubular pipe. The last section of the main tubular pipe is connected via a tube and via collaterally ordered reversal valves and non-adjustable throttle arrangement with the supplementary tubular pipe. The outflow valve has a cylindrical casing, in which is placed a two level piston with the capability of movement. Openings on the casing and on the two level piston are provided for contact with the main tubular pipe, the supplementary tubular pipe and the atmosphere. |
