one 、 Working principle of high-pressure water jet ：

High pressure water jet cleaning is a high-tech cleaning technology rising in China in recent years. The so-called high-pressure water jet is a highly concentrated flow of energy that pressurizes ordinary water to thousands or even tens of thousands of atmospheric pressures through a high-pressure pump, and then squirts out at a very high speed (200-500 m/s) through a special nozzle (aperture is only 1-2 mm). These small streams of water have huge striking energy like small bullets. Cleaning with this stream of water with huge energy is called high-pressure water jet cleaning.

two 、 Advantages and characteristics of high-pressure water jet ：

(1) Low cleaning cost:

First of all, the medium used by high-pressure water jet is ordinary clean water, which is easy to source and widely exists. In the cleaning process, because of the powerful energy, it can be cleaned without adding any chemicals, so the cost is very low. Secondly, it saves water and energy. This cleaning method is different from the fire water. It belongs to the fine jet jet. The diameter of the nozzle used is only a few millimeters, so the water consumption is small. The efficiency of the equipment itself is high, so it belongs to the water-saving and energy saving equipment.

(2) Good cleaning quality:

When cleaning the inner holes of pipes, heat exchangers, condensers, fences, etc., the scale and blockage in the pipes can be cleaned, and the metal body can be seen. High pressure water jet with huge energy and moving at supersonic speed can completely destroy hard scale and blockage. At the same time, the pressure of high-pressure water is less than the compressive strength of metal, but it has no destructive effect on metal, realizing high-quality cleaning.

(3) Fast cleaning speed:

Due to the combined crushing effect of water jet such as scouring, shearing and grinding, the scale can be broken and dropped immediately. It is several to dozens of times faster than traditional chemical methods, sand blasting and shot blasting.

(4) No environmental pollution:

Unlike sand blasting and other mechanical cleaning, water jet cleaning produces a large amount of dust, which pollutes the atmospheric environment and damages human health. It is also not like chemical cleaning, which produces a large amount of acid, alkali and other waste liquid to pollute. The water jet is odorless, tasteless and non-toxic with ordinary clean water as the medium. After atomizing the jet, the concentration of air dust in the operation area can be reduced, and the concentration of acid and alkali waste liquid can be eliminated. It really belongs to environmental protection operation.

(5) No corrosion of metal:

Due to pure physical method, it has no corrosive effect on metal.

(6) Wide range of applications:

If the water jet can hit within the range, you can choose different pressures to quickly clean all kinds of dirt, without having to choose different formulations like chemical cleaning. This cleaning method has no special requirements on equipment material, characteristics, shape and scale type. As long as high-pressure water can hit the place, it is widely used.

III Main cleaning service objects:

(1) Thermal power plant: ash removal of boiler air preheater, cleaning of desulfurization device, descaling of steam turbine condenser, cleaning of air cooler, oil cooler, turbine blade, rotor, diaphragm and ash conveying pipeline.
(2) Petrochemical plant: cleaning of various heat exchangers, reaction kettles and pipelines.
(3) Refinery: cleaning of tar and sundries of various pipelines, heat exchangers and tube bundles.
(4) Paper mill: cleaning of rolls and felt.
(5) Sugar factory: cleaning of evaporator, heater, charging tank, crystallizing tank, material pipe, plate and frame filter, etc.
(6) Heating industry: cleaning of boiler water wall tubes, convection tube bundles and heating pipe networks.
(7) Corn deep processing industry: cleaning of evaporators, heat exchangers and pipes.
(8) Cement manufacturing industry: grate cooler, preheater calciner scaling, flue scaling removal.
(9) Tomato products industry: for the scaling removal of heaters, evaporators, bacteria generators, plates and frames, and material pipelines.
(10) Iron and steel enterprises: oxygen plant, coking plant, converter flue.