Intercepting deep well self-siphoning hydraulic desilting device
A hydraulic dredging and deep well technology, applied to water supply devices, waterway systems, cleaning sewer pipes, etc., can solve the problems of high operating costs, harsh working environment, high equipment costs, etc., to promote instant generation, improve water discharge efficiency, and facilitate maintenance Effect
Active Publication Date: 2012-09-19
ZHEJIANG UNIV
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Problems solved by technology
[0003] Traditional combined drainage system sludge removal methods mainly use mechanical dredging, high-pressure water jet dredging, and water scour dredging. Special desilting equipment improves the efficiency of desilting, but the equipment cost is high and the operating cost is high, which cannot fundamentally solve the problem of pipeline silting
In addition, the manual dredging method is also the main dredging method for some urban drainage pipes. The manual dredging method is inefficient, the working environment is harsh, and it cannot effectively guarantee the normal operation of the combined drainage system.
In response to the shortcomings of mechanical and manual dredging methods, some new hydraulic automatic dredging devices have been developed correspondingly abroad, such as and Vacuum flushing system, etc., but these automatic hydraulic dredging cannot be applied to full-flow pressure-bearing pipe sections or require power equipment, so they cannot be fully promoted
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[0023] Such as figure 1 As shown, the self-siphon hydraulic dredging device for the intercepting deep well of the confluence system of the present invention comprises a siphon inlet pipe 1, a siphon destruction hole 2, a siphon suction pipe 3, a siphon auxiliary pipe 4, a suction port 13, a siphon drain pipe 14 and a siphon Bend pipe 12, the pipe diameter of siphon auxiliary pipe 4 and siphon suction pipe 3 are 15~25cm, less than the pipe diameter of siphon water inlet pipe 1 and siphon drain pipe 14. The suction port 13 is installed at the water inlet at the bottom of the siphon water inlet pipe 1, and is 45° to the horizontal direction. The suction port 13 is arranged mainly for improving the suction flow field at the bottom and promoting the removal of the mud at the bottom of the well. The siphon auxiliary pipe 4 is installed inside the siphon elbow 12, close to the siphon water inlet pipe 1 side. The communication port between the siphon auxiliary pipe 4 and the siphon e...
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The invention discloses an intercepting deep well self-siphoning hydraulic desilting device, which comprises a siphoning water inlet pipe, a siphoning bent pipe and a siphoning drainage pipe, wherein a suction opening is arranged at the position of the water inlet of the siphoning water inlet pipe; a siphoning destruction hole is formed in the siphoning inlet pipe; and the siphoning bent pipe is provided with a siphoning auxiliary pipe and a siphoning suction pipe. The device of the invention can change the flow state in the intercepting deep well and an upstream bearing pipe by changing the original continuous small flow into intermittent instantaneous heavy flow, so that the suspended materials in sewage are unlikely to settle down, and sludge settled onto the bottom of the pipes and the well can be washed and carried into an intercepting main pipe. The device does not need power, is simple in structure and convenient to install, and has a better desilting and siltation preventing effect.
Description
technical field [0001] The invention relates to the field of hydraulic desilting devices for intercepting wells, in particular to a self-siphon hydraulic desilting device for deep intercepting wells of a confluence system under the condition that the elevation of the intercepting pipe is higher than that of the sewage pipe. Background technique [0002] The intercepting combined drainage system transports the dry sewage and initial rainfall runoff to the sewage treatment plant through the intercepting main pipe, and the rainfall runoff exceeding the interception multiple overflows into the water body through the overflow weir. Therefore, the intercepting combined drainage system It is a drainage system with less investment and better environmental benefits. However, since the combined drainage system needs to collect and transport dry sewage and rainfall runoff at the same time, the diameter of the pipe is relatively large. In pipes and inspection wells, resulting in blocka...
Claims
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IPC IPC(8): E03F9/00
Inventor 周永潮张仪萍陈勇民张土乔
Owner ZHEJIANG UNIV