Water pipes are the most commonly used in our lives, and their main functions are water supply and drainage. Moreover, modern decoration water pipes are built by burying walls, and there are many kinds of decoration water pipes now. There are three most common types: metal tube, plastic composite metal tube and plastic tube. Generally, the three types of pipes are hot-dip cast iron pipes, copper pipes, stainless steel pipes, plastic composite pipes, aluminum-plastic composite pipes, PB, PP-R and so on. But the water pipes still need to be cleaned after being used for a long time. If it involves the cleaning of drinking water pipes, chemical drugs must not be used for cleaning, otherwise it will easily cause harm to the body.

Water pipe cleaning method

1. chemical cleaning: chemical cleaning refers to the temporary transformation of the pipeline with chemicals, and cyclic chemical cleaning is carried out from both ends of the pipeline by using temporary pipelines and circulating pumping stations. This technology has the characteristics of strong flexibility, no requirement for pipeline shape, high speed and thorough cleaning.

2. High-pressure water cleaning: peel off and clean the dirt on the inner surface of the pipeline with a high-pressure water jet above 50Mpa. This technology is mainly used for short-distance pipelines, and the pipeline diameter must be greater than 50cm. This technology has the characteristics of high speed and low cost.

3. Pigging by pig: The industrial pigging technology of pig relies on the driving force generated by the pump to push the fluid to drive the pig forward in the pipeline and discharge the accumulated dirt in the pipeline, thus achieving the purpose of cleaning. This technology is widely used in the cleaning engineering of various process pipelines and oil and gas pipelines in oil fields. , especially for cleaning long-distance fluid pipelines, has irreplaceable advantages.

Water pipe cleaning process

1. Check the sewage pipes and their connecting pipes in factories, office buildings, hotels, restaurants and houses to be cleaned; Before cleaning, we must first understand the ins and outs of the pipeline, understand the service life, use, blockage, and whether the buried and exposed parts of the building are damaged. Damaged equipment and pipes must be replaced before cleaning. When asking about equipment and pipes, pay attention to their materials. Besides cast iron and ceramics, what other materials are there in the system? For example, equipment and pipes with structural materials such as cement should be separated from the system during cleaning to avoid corrosion.

2. Divide the pipeline to be cleaned into several cleaning sections, and do it well before cleaning. The floors and units of various buildings are different, and the volumes of sewers and equipment are also different. In order to facilitate the dredging of pipelines, it is generally divided into several small cleaning sections. The method of segmentation is mainly based on the volume of sewers, the height of floors, the convenience of cleaning and the possibility of segmentation. Generally speaking, it is better to take the third and fourth floors of a unit as an interval.

3. blocking this is an important part of cleaning. First, block the first section from top to bottom, generally at the observation hole (hand hole) of the main pipeline, and then block the port connected to the atmosphere and the port connected in parallel with other pipelines, leaving only two ports at the top of the section, one for cleaning liquid and the other for degassing. The plugging position should be able to withstand the pressure of 1-2kg/cm2 to avoid plugging attack caused by static pressure of liquid column during cleaning. If there is a valve at the blockage, it is best not to rely entirely on the valve blockage, because the valve is used for a long time and is not easy to close, so corresponding measures should be taken in coordination with other blockages.

Cleaning water pipes is very important, because water pipes will always produce a lot of pollution when used for a long time. Especially the water pipe cleaning of the drinking water we use. At present, there are many kinds of decoration water pipes, and the most common ones are metal pipes, plastic composite metal pipes and plastic pipes. But the cleaning methods of different types of water pipes are different. There are three main methods to clean water pipes, namely, dissolved chemical cleaning, ozone cleaning, high-frequency and computer microcontroller cleaning. Next, Bian Xiao will tell you something about water pipe cleaning, hoping to help you.