Composite pipeline cleaning system and method

Abstract

The invention relates to the field of water supply and drainage pipeline cleaning, and discloses a composite pipeline cleaning system and method.The composite pipeline cleaning system comprises a to-be-cleaned pipeline provided with a water inlet pipe and a drainage pipe, a filling system and a central control system; the ice slurry generating and conveying system, the gas pulse generating and control system, the water conveying system and the data monitoring system are respectively controlled by the central control system; the to-be-cleaned pipeline is communicated with the filling system, and the filling system is connected with the ice slurry generating and conveying system, the gas pulse generating and controlling system and the water conveying system; the water inlet pipe is communicated with the water conveying system, the water drainage pipe is connected with the data monitoring system, the to-be-cleaned pipeline is provided with a first valve located behind the water inlet pipe and a second valve located behind the water drainage pipe, and the system further comprises a movable pipeline detection device used for detecting the interior of the pipeline. Free switching of multiple cleaning modes can be achieved according to different pipeline conditions.

Description

technical field [0001] The invention relates to the field of cleaning water supply and drainage pipes, in particular to a composite pipe cleaning system and method. Background technique [0002] National regulations stipulate that newly installed water supply pipes must be cleaned and disinfected before they are connected to the grid. In addition, during the long-term operation of the water supply pipeline, physical, chemical and electrochemical reactions are prone to occur in the pipeline, and a "growth ring" will form on the inner wall of the pipeline. When the direction or velocity of the water flow in the pipeline changes, it will be washed down by the water flow, affecting the water supply. water quality. Pipeline cleaning is an effective way to ensure the water quality of the pipe network. [0003] Existing pipeline cleaning technology mainly contains two kinds of physical and chemical. It is difficult to use chemical agent method in urban water supply network. Fir...

AI Technical Summary

Problems solved by technology

The disadvantage is that it needs to break the pipe and stop the water. In case of pipe accessories, etc., the construction is more difficult, and the lining should be applied immediately after scraping the pipe, otherwise it will be more likely to corrode

The cannonball method is that the head of the washer used to pass through the cleaning pipeline is in the shape of a cannonball. This method is very effective for cleaning growth rings that are not hard, but not thorough enough for hard ones.

It is difficult to work at the end of the pipe network or in the low pressure area, especially when the pig has to pass through the pipe fittings such as gates and elbows

In addition, due to the difficulty in getting in and out of the pig during pigging, it is necessary to set up special inlets and outlets, which also limits the application of this method.

The hydraulic cleaning method uses hydraulic cleaning water to flow out of the pipe section to remove the sediment on the pipe wall and the biofilm on the inner wall. This method is not suitable for relatively hard pipe scale, and the water consumption is large, and it cannot be used for severely corroded pipes. effective cleaning

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