Introduction of pressure loss of high pressure cleaning machine

When we use high-pressure water jet for cleaning, the pressure loss is often ignored, and most people don't know much about it. In the actual operation of high-pressure cleaning machine, high-pressure water flow through the high-pressure hose, joint and rotating body will cause pressure loss, and the key factor leading to pressure loss is the flow coefficient rather than the pressure used. The final pressure loss is determined by the flow coefficient of the diameter and length of the liquid flowing through the high pressure hose.

1. Calculation of nozzle jet thrust

Another factor to decide whether the pipeline cleaning head can carry out ultra long distance cleaning is the jet thrust of the nozzle pushing the cleaning head to enter. The jet thrust is proportional to the flow coefficient, but only the square root of the pressure. Assuming that the pressure value of the high-pressure cleaning machine is fixed, the flow coefficient can be increased; When the flow coefficient is increased to a point, the pressure loss caused by the liquid flowing through the high-pressure hose is half of the normal working pressure, and the jet thrust of the nozzle can be obtained. If it is lower than the zero point, the jet thrust of the nozzle will decrease rapidly.

2. Achieve greater power

The performance of high pressure cleaning machine determines the pressure and flow coefficient it can create. The impact force of high pressure water on the cleaned surface is directly proportional to the combined effect of pressure and flow. Assuming that the pressure value of the high-pressure cleaning machine is fixed, the flow coefficient can be increased; If the flow coefficient is increased to a point, the pressure loss caused by the liquid flowing through the high-pressure hose and connecting joint is one third of the normal working pressure, and the combination effect of pressure and flow is better.