Ultra high pressure cleaning machines dominate the cleaning process in the petrochemical industry

　　Ultra high pressure cleaning machineIn the process of petrochemical production, due to various reasons, equipment (such as various towers, heat exchangers, tanks, reactors, etc.) and pipelines will produce dirt such as polymers, coking, oil scale, water scale, sediments, corrosive substances, etc. These dirt can cause equipment and pipelines to fail, reduce the production efficiency of the device system, increase energy and material consumption, and in severe cases, interrupt the process, force the device to shut down, resulting in significant economic losses and even potentially catastrophic accidents. In actual production, it is impossible to avoid the generation of dirt, so cleaning has become a crucial step in petrochemical production.

Due to the characteristics of high-pressure water jet technology and its many advantages in the field of cleaning, as well as the experience and economic benefits gained in practice, it has been increasingly recognized and welcomed by the petrochemical industry as a cost-effective, safe, fast, reliable, and effective cleaning method.

　　Ultra high pressure cleaning machineThe main working medium of the ultra-high pressure cleaning machine is pure water. The working principle of the ultra-high pressure cleaning machine is to pressurize ordinary tap water to more than a thousand atmospheres through a high-pressure water pump, and then spray a highly concentrated jet of energy through a small aperture high-pressure nozzle, which is commonly known as the ultra-high pressure water jet. The ultra-high pressure water jet has a huge impact ability and is instantly released on the cleaned dirt, forming a wedge-shaped peeling, shear composite damage, and jet impact force on the surface of the dirt, causing a pressure difference between the dirt and the substrate, in order to achieve the goal of removing dirt on the surface of the equipment.

　　Ultra high pressure cleaning machineParameter selection for cleaning turbine rotors:

Low voltage end

The cleaning pressure is 1500-1800 bar, the flow rate is 15-25 L/min, the cleaning rotary gun speed is 150-180 r/min, the target distance is 15-40 mm, and the high-pressure nozzle with 4 holes facing forward is used.

high-pressure end

The cleaning pressure is 1900-2300bar, the flow rate is 19-30L/min, the cleaning rotary gun speed is 210-230r/min, the target distance is 10-15mm, and the high-pressure nozzle with 4 holes facing forward is used.

When cleaning the compressor rotor, due to the adhesion of oil coke on the blades and baffles, its adhesion is much lower than that of high-temperature steam deposits on the turbine rotor. Therefore, the required cleaning pressure and flow rate process parameters are also reduced. Using cleaning parameters at the low and medium pressure ends can meet the cleaning needs.

useUltra high pressure cleaning machineThere are three main ways to solve the problem of slight rusting on the cleaned surface during the cleaning process:

Adding a certain amount of chemical corrosion inhibitor to water can suppress rusting before installation.

Reasonably arrange pre-processing and installation time.

Use compressed air to quickly dry the surface.

Nowadays, the development of ultra-high pressure cleaning machines is becoming increasingly mature. Ultra high pressure cleaning machines use clean water as the working medium, which is odorless, non-toxic, and odorless. After the high-pressure water jet sprayed is atomized, it can also reduce the pollution level of dust in the operating area, greatly improving the air quality and ensuring the smooth progress of cleaning work. Next, we will mainly introduce the application of ultra-high pressure cleaning machines in turbine rotor cleaning.

A steam turbine, also known as a steam turbine, is a rotary power machine that converts the energy of steam into mechanical work. It is mainly used as a prime mover for power generation and can directly drive various pumps, fans, compressors, and ship propellers. It can also use the exhaust or intermediate extraction of the steam turbine to meet the heating needs of production and daily life. The combination of all rotating components in a steam turbine is called the rotor. The role of the rotor is to withstand the rotational force of steam on all working blades and drive the generator, main oil pump, and governor to rotate. Due to long-term operation under the drive of high-temperature steam, the rotor of a steam turbine accumulates more and more high-temperature scale and other deposits on the blades and baffles. These deposits have a tight structure and strong adsorption force, so they must be removed during regular shutdown maintenance. Traditional cleaning methods mostly use sandblasting machines for treatment, but in recent yearsUltra high pressure cleaning machineCleaning the turbine rotors of power plants has achieved better results than sandblasting machines, and can also be used for cleaning the rotors of large and medium-sized compressors in the petrochemical industry.