Integrated device for dredging drainage pipeline based on high pressure rotating jet flow

Abstract

The invention discloses an integrated device for dredging a drainage pipeline based on high pressure rotating jet flow. The device is composed of three parts, namely, a control assembly, a washing assembly and a dredging assembly, wherein a magnetic valve and a central control unit in the control assembly are connected through necessary signal lines. A hollow stainless steel tube is sleeved with a high pressure nozzle and a screw rod in the washing assembly and fixed through a fixing support on a bearing, and the hollow stainless steel tube is connected to a high pressure rubber tube on a dredge car. A mud blocking trough in the dredging assembly is installed on the hollow stainless steel tube, and a sucker is installed in the mud blocking trough and connected to a mud sucking pipe which is connected with a mud storage trough through a mud pump. Compared with a traditional method for cleaning silt in a drainage pipeline, the integrated device has the advantages of being safer, more efficient and water-saving, the water flow of jet grouting can crush sediments and obstacles which are deposited at the bottom of the drainage pipeline, and the screw rod is used to stir fully; therefore, the purpose of complete dredging is achieved, and the integrated device is an effective silt cleaning device.

Description

technical field [0001] The invention relates to the technical field of desilting equipment for drainage pipes, in particular to an integrated device for desilting drainage pipes based on high-pressure rotating jets. Background technique [0002] With the continuous acceleration of the urbanization process, the urban population has increased rapidly, the water consumption of residents has continued to increase, and the drainage volume has increased accordingly. When residents discharge domestic sewage into the drainage pipes, some domestic garbage is often entrained. At the same time, the rain and sewage confluence system was adopted in the early construction of drainage pipelines. During the process of urban heavy rain, silt, domestic garbage and construction waste entered the drainage system under the washing of rainwater. Drainage capacity is reduced and clogging may occur. [0003] At present, there are many ways to clean up the sediment in the drainage pipe: 1. Slow car...

AI Technical Summary

Problems solved by technology

This method is economical and economical to operate, but it needs to manually go down the well to complete the transportation of TT sheets between the pits, which may cause safety accidents due to the harsh working environment underground; 2. Manual dredging method, this method requires a group of "underground workers" , they shuttled back and forth through the foul-smelling drains, the porters of the silt in the drains

However, this method is extremely dangerous, because toxic and harmful gases such as hydrogen sulfide, ammonia, sulfur dioxide, and carbon monoxide will be precipitated in the sewage, which is prone to poisoning or explosion accidents in case of open flames, and there are disadvantages such as small-caliber pipelines that are difficult to clean ;3. Hydraulic flushing method, which uses the water flow formed by the upstream water storage to wash away the sediment in the pipeline. Every time it is flushed, the dredging device will move down for a certain distance, and the water collection dredging will be carried out again

Its disadvantage is that the dirt and stones deposited at the bottom of the pipeline for a long time are difficult to be cleaned out; 4. High-pressure water jet method, using high-pressure water pumped by a high-pressure pump, and passing through the pipeline to the nozzle, and then converting the high pressure and low flow rate into high The high-speed jet generates powerful impact kinetic energy, which continuously acts on the cleaning surface, so that the dirt falls off, and finally achieves the purpose of cleaning

However, the nozzle design of the existing high-pressure water jet device is very unreasonable, resulting in a lot of waste of water resources

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