Analysis of the Source of Water Cutting Machine Pressure and the Problem of Sand Break

When using a water cutting machine, it is necessary to first increase the atmospheric pressure water to more than 200 MPa through a supercharger, and then convert the pressure energy of the water into kinetic energy through a small pore of an energy converter, and add the abrasive to make the abrasive Driven by the high-speed water flow, it can shoot at the cutting object after accelerating to form a large cutting ability.
     The water jet of the waterjet cutting machine starts from the pressure pump, passes through the high-pressure pipe, and then exits from the cutting nozzle. Although this is a very simple explanation, it has undergone a very complicated design to produce the pressure required for cutting. This cutting process is actually a grinding cutting process, and this force and action are generated by water. of.

     Waterjet cutters are not always smooth during the cutting process. Sometimes the sand valve will break sand. At this time, check the negative pressure gauge. If the negative pressure is significantly lower than the set value, it may be at the sandbox outlet. There is foreign matter accumulated in the throttle end of the nut.

     In this case, you can directly open the nut of the welded pipe joint and lower the sand control valve; then use a screwdriver to remove the throttle valve seat, and the general impurities will flow out along with the garnet. If it still does not work, it may be due to too much or too much debris accumulated, which requires removing the sandbox to clear the debris.

     If the negative pressure gauge of the waterjet cutting machine has no negative pressure, it is usually caused by the accumulation of foreign matter or excessive garnet in the waterjet sand control valve body to the sand conveying pipe joint. The cleaning procedure in this case is more complicated, and the sand valve joint, sand conveying pipe, and sand conveying pipe joint need to be removed one by one; and then cleaned with high pressure gas, so that the equipment can return to normal.