| 摘要 |
FIELD: agriculture.SUBSTANCE: influent pipe comprises a hole of external air inlet, an exhaust hole, an air channel stretching along the longitudinal axis of the pipe and connecting the hole of external air inlet with the exhaust hole, having the first section of the air channel, stretching in the direction of the external air flow from the hole of external air inlet to the inlet hole of the stock-raising room air. The pipe also comprises the second section of the air channel, stretching in direction of the flow from the inlet hole of room air to the exhaust hole, a device of air supply arranged inside the second section of the air channel and designed for supply of air from the hole of the room air inlet and the first section of the air channel to the exhaust hole. The influent pipe comprises the first throttling device with a throttling valve as capable of rotation between the first position, in which it closes the first section of the air channel and the second position, in which it opens the first section of the air channel. The pipe comprises the second throttling device arranged in the first section of the air channel in direction of the flow downstream the first throttling device. The second throttling device comprises at least one air-directing element installed in the first position for putting air via the second throttling device in a spiral movement around the longitudinal axis of the pipe.EFFECT: invention provides for reliability of influent pipe functioning under low temperatures of ambient air and prevents snow or ice formations.15 cl, 4 dwg |
