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Different impact angle of high-pressure cleaning machine will make water jet cleaning effect not

Time: April 30, 2020 09:37 source: unknown author: admin

For small diameter pipe cleaning, we often use High pressure cleaning machine As the main cleaning method. Using high pressure cleaning machine to clean pipeline has high cleaning efficiency and wide application range. In the cleaning process, due to the particularity of small diameter pipes, we have different choices for the main parameters (such as the pressure and flow rate of high-pressure cleaning machine). Generally, the small diameter tube has the main circular distribution and curvature effect, which makes it very different from the ordinary plane cleaning, and the latter becomes more and more obvious with the decrease of pipe diameter. Will the following editor describe in detail the main factors that affect the use of high pressure cleaning machines to clean small diameter pipes?

1. Target distance and influence

We often extend the range of spray cleaning by increasing the initial length of spray, which is beneficial to improve the cleaning efficiency of high pressure cleaning machine. At the same time, the high-pressure water near the front end impinges on the inner wall of the pipe and generates water cushion due to refraction. It greatly reduces the cleaning effect of the afterspray. Therefore, in order to increase the impact force in the cleaning process, the cleaning point should be selected and the spray target distance should be coincident.

2. Pressure and flow

Generally, the pressure and flow rate are directly proportional to the power of the high-pressure cleaning machine, but they are completely different in terms of cleaning dirt. When the pressure is constant, we can improve the cleaning speed and spraying speed to remove the scale on the substrate.

 High pressure cleaning machine

3. Impact angle and cleaning speed

The impact angle of water jet is the angle between the nozzle axis and the normal of the plane to be cleaned in the cleaning plane. When other conditions are the same, different impact angle will make the cleaning effect of water jet different. At the same time, the impact angle of water jet is also related to the movement direction of water jet. When the impact angle deviates from the forward direction of the ejector, the water after cleaning will carry the broken dirt at a certain speed to clean the surface to be cleaned, so the water flow will accelerate the generation and growth of cracks after rebound. The cleaning effect of the pipe wall is increased. Improve cleaning efficiency.

4. Nozzle

For small diameter pipes, the size of nozzle of high-pressure cleaning machine is limited by working space, so it is usually two-dimensional rotating nozzle. In the cleaning process, the nozzle is connected to the high-pressure hose, and the nozzle moves forward through the reverse thrust generated by the spray nozzle, and the rotation torque is driven by the reverse torque generated by the spray. In addition to the necessary back jet holes, this type of nozzle also has a front jet hole or a radial jet hole. The rear nozzle hole is mainly used to generate propulsion and sewage, the radial hole is mainly used for cleaning, and the nozzle hole in front of the wheel body is mainly used for cleaning.

In operation, attention should also be paid to these points in order to give full play to the cleaning effect of high-pressure pipeline cleaning machine.

First of all: you can make full use of the pressure and flow of the high-pressure cleaning machine. When the high-pressure water jet is stable and continuous, the pressure acting on the object to be cleaned is called impact pressure. From the point of view of mathematics and physics, the pipeline high-pressure cleaning machine is directly proportional to the square of impact speed and water spray speed. Therefore, we try to increase the injection speed at the nozzle outlet, which can effectively improve the cleaning efficiency. In order to make full use of water spraying speed, the resistance loss and winding loss of high pressure hose must be minimized. To find a way to reduce the high pressure loss. Pump to nozzle.

Secondly, it is necessary to fully grasp the power of water jet, that is, the total working capacity of water jet, which is directly proportional to the pressure and flow rate of water jet. It can be seen that the power of water jet can be increased by increasing the pressure and flow rate of water jet. According to the strength calculation and design pressure of dust mass. If the high pressure of the cleaning machine is large enough to cause damage to the high pressure water spraying machine. It can improve the cleaning effect.