| 摘要 |
A pump comprises a vacuum receiver connected through valve with compressor inlet, discharge receiver connected through valve to compressor discharge pipeline, outlet branch pipe of cylinder with valve connected to discharge receiver and outlet branch pipe of cylinder with valve connected to compressor inlet, pipeline for air supply connected to discharge receiver, in the upper and the lower parts of the cylinder sensors of liquid level are placed, at that lower sensor of liquid level is placed over inlet branch pipe of liquid and additional cylinder that in lower part has inlet valve for liquid and outlet branch pipe for liquid with back valve connected to liquid-lifting pipeline, and in the upper part it has inlet branch pipe that through valve is connected to discharge receiver, outlet branch pipe that through valve is connected to vacuum receiver, and outlet branch pipe that through valve is connected to compressor inlet.
|
