Selection of high pressure cleaning machine for inner wall of feed pipe
The high-pressure cleaning machine uses the huge impact produced by the direct injection of high-density and high-pressure water jet beam to clean objects, so as to achieve the purpose of cleaning. The selection of pressure and flow rate is very critical, which directly affects the overall cleaning effect. At the same time, we should pay attention to the selection of the nozzle to achieve the ideal cleaning effect.
High pressure cleaning machine is suitable for cleaning long pipe, spiral pipe and other elbow pipes. The utility model has the advantages of long cleaning distance, bending pipe, cleaning pipeline without disassembly, integral cleaning, etc. Most of the cleaning objects of self high pressure cleaning machines are on the inner wall of pipes, such as sewage pipes, gas pipes, oil pipes, other industrial raw material transportation pipes, power plants, chemical plants, smelters, etc., which are mainly used for cleaning scale and other plugging materials in pipes.
The choice of nozzle hole shape is also very important. Under the same outlet pressure and flow rate, the difference of nozzle structure and performance will affect the dynamic pressure distribution. In the field of pipeline cleaning, the high pressure nozzle with conical cylindrical hole is mainly used, and the inner hole is changed from conical to cylindrical. Chamfering is not allowed for the transition line between the end face of pyramid and prism. The better taper range of the conical surface is 12 ~ 14 degrees, the better ratio range of the length and diameter of the cylindrical hole is 2.5 ~ 3.0, the inner surface of the hole needs to be polished and polished, and the roughness is limited to 0.8 √ ~ 0.4 √. In order to meet the requirements of the above parameters, the high-pressure water jet from the nozzle can ensure high density and high cohesion, so as to obtain longer effective target distance and wider spray area, so that the high-pressure cleaning machine can achieve higher cleaning efficiency.
Since the type of entering pipeline is high-pressure cleaning, it is generally equipped with 2-D rotary nozzle, and the direction of nozzle is 2-4 reverse nozzle after decoration. The reverse nozzle provides thrust at the same time, and can also reverse clean and drain water. The clean distance is very long, and it can be bent through the pipeline, and it can be cleaned as a whole without removing the clothesline, etc. The cleaning speed is controlled at 5 ~ 19 m / min to achieve better effect. With the popularity of high-power high-pressure pump, the equipment can be more widely used for cleaning long pipe, spiral pipe and other bends.
