Today, industrial pipeline cleaning mainly includes three categories: pipelines, tube bundles and inner walls of containers. Industrial pipeline cleaning is more difficult because of the thick and hard scale layer and the long pipeline.

The high-pressure water jet cleaning machine has two main aspects when cleaning industrial pipelines, one is the requirements for high-power pump units, and the other is the requirements for nozzles.

For example, China's alumina industry has a huge demand for pipeline cleaning. In recent years, the power requirements for high-pressure water jet cleaning machines have increased from 350kw to 550kw, the pressure has reached 1500bar, and the flow rate has even required 220L/min. The main reason is that the scale layer of the pipeline is thick and hard, resulting in a large amount of cleaning and a short cleaning cycle. Cleaning the scale layer of the pipeline is called descaling in the industry. Since the high-pressure hose on the job site needs to be more than 150m, the pressure loss is relatively large.

For this high-power high-pressure water jet cleaning machine, to improve the level of automation control, the high-pressure hose delivery also depends on the forced delivery of the hose feeder.

Since the high-pressure water jet cleaner relies on ultra-high pressure and large flow water jets to drive the nozzles when cleaning industrial pipes, a variety of nozzles are designed according to different pipe diameters. The technical requirements of the rotating nozzle are very strong. If the rotation speed is too fast, the water jet will be atomized. If the rotation speed is too slow, it is easy to get stuck. Therefore, the design of the rotating nozzle should consider deceleration.

The principle of the high-pressure water jet cleaning machine for cleaning industrial pipes is to use the rotating high-pressure water jet at the front of the nozzle to cut and crush the dirt on the inner wall of the pipe, and then the high-pressure water jet at the rear of the nozzle discharges the dirt, and the reverse effect of the backward nozzle Force is used to push the spray head and high pressure hose forward. When the nozzle reaches the other end of the pipe, the pressure can be appropriately reduced. Then the high-pressure hose is forced to move backward under the action of the pulling force of the hose reel, so as to further clean the pipe wall and take the remaining debris out of the pipe to achieve the purpose of cleaning the pipe