Method for automatically dredging and unblocking water and sand inlet in reservoir water draining and conveying facility

• Main Author: MEI YIMIN
• Format: Patent
• Language: Chinese; English
• Published: 05.12.2012
• Subjects: FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING

The invention discloses a method for automatically dredging and unblocking a water and sand inlet in a reservoir water draining and conveying facility. One or more silt flushing water outlets with certain overflowing cross sections are formed in the water and sand inlet and at the proper position beside the water and sand inlet and face to the direction possibly causing deposit and blockage and favorable for conveying water and sand; the silt flushing water outlets are communicated with silt flushing water getting holes positioned above the reservoir deposit surface through a silt flushing water conveying channel, so that clear water or relative clear water can be got from the upper part of a reservoir area and a water head corresponding to the reservoir water level can be obtained by the silt flushing water outlets. When the water and sand inlet is deposited and blocked, a pressure difference is formed between each silt flushing water outlet and the water and sand inlet, and the silt flushing water outlets g