Relief well dredging device

Abstract

The invention provides a relief well dredging device which comprises a pipe body and a high-pressure water spraying pipe. The high-pressure water spraying pipe is aligned to a lower port of the pipe body, a pressure equalizing chamber is fixed outside the pipe body, the pressure equalizing chamber is communicated with a plurality of air delivery pipes and communicated with the pipe body through a plurality of air spraying pipes. High-pressure water sprayed by the high-pressure water spraying pipe impacts sludge and soil blocks deposited in a relief well to form granules, the granules and water are mixed to form slurry, high-pressure air is led into the pressure equalizing chamber through the air spraying pipes, compressed air in the pressure equalizing chamber is jetted towards the slurry inside the pipe body through the air spraying pipes, the pressure intensity of the compressed air in the pipe body is reduced, formed air bubbles rapidly expand and float upward, the slurry is sucked into the pipe body by utilizing negative pressure, and finally the slurry is carried out of the relief well. In the process, the air bubbles rolling in the slurry also accelerate slurry forming by utilizing the sludge and soil blocks in the pipe body. The relief well dredging device has the advantages of being good in dredging effect and high in working efficiency and saving water resources.

Description

technical field [0001] The invention relates to a desilting device for a relief well. Background technique [0002] The pressure relief well is used to reduce the pressure head and seepage pressure acting on the downstream of the embankment or in the covering layer in the dam, so as to prevent the occurrence of piping, flowing soil, swamping and other phenomena. It is a well pipe drainage facility. The relief well is easy If the relief well is blocked by falling objects and silt, it should be checked and cleaned regularly during the operation of the relief well; for the relief well blocked by silt, high-pressure water pipes are generally used to flush the silt at present, but the desilting effect of the ordinary desilting device is poor, the working time is long, and a large number of waste of water. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a relief well dredging device with good dredging effect and high ...

AI Technical Summary

Problems solved by technology

[0002] The pressure relief well is used to reduce the pressure head and seepage pressure acting on the downstream of the embankment or in the covering layer in the dam, so as to prevent the occurrence of piping, flowing soil, swamping and other phenomena. It is a well pipe drainage facility. The relief well is easy If the relief well is blocked by falling objects and silt, it should be checked and cleaned regularly during the operation of the relief well; for the relief well blocked by silt, high-pressure water pipes are generally used to flush the silt at present, but the desilting effect of the ordinary desilting device is poor, the working time is long, and a large number of waste of water

Images