Automatic drainage system of cable tunnel

• Main Authors: SUN GUOQIANG, TONG YINGNAN, YANG YANQIU
• Format: Patent
• Language: Chinese; English
• Published: 09.06.2010
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The utility model relates to an automatic drainage system of a cable tunnel, which belongs to the field of drainage. A water collecting well (2) is arranged in the lowest position of the cable tunnel for collecting accumulated water in the well. Two submersible pumps of the submersible pump A (3) and the submersible pump B (4) are mounted in the water collecting well, a drainage pipe (6) of the submersible pump A (3) and a drainage pipe (7) of the submersible pump B (4) are connected with a main drainage pipeline (3) through a connecting pipeline (8) in a parallel connection way, and a high water level probe (9), a low water level probe (10) and a zero water level probe (11) are simultaneously arranged in the water collecting well (2). When the water level is low, the submersible pump A (3) is started for drainage, when the water level is high, the submersible pump B (4) is simultaneously started for drainage. The automatic drainage system is characterized by high degree of automation, timely drainage and lar