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When we use pneumatic cleaning machine, water gun will not produce water or water

Author: admin Release time: 10:20, June 30, 2020 Number of visits:

In our use Pneumatic cleaning machine When the water gun does not produce water or the water pressure becomes smaller, this phenomenon occurs. First of all, we should calm down and turn off the dredger in time to find out the reason.
 
There are many reasons for this failure, which can be roughly divided into the following points:
 
1. The water inlet filter is partially blocked, resulting in insufficient water supply;
2. The pressure regulating valve is not adjusted to the high pressure position;
3. The damage of O-ring caused by water leakage will affect the pressure;
4. Before the machine works, the air in the pipeline and the high-pressure pump are not discharged according to the operation regulations. In case of such a fault, please turn off the power supply of the high-pressure dredger (do not turn off the water source), and first press and hold the handle switch for one to two minutes. Time, empty the air in the tube or high-pressure pump, and then turn on the power switch of the machine for normal use;
5. The nozzle is a high and low pressure switch nozzle, but it is in a low pressure state;
6. The water flow index of high-pressure water gun is more than 1000 l / h. The flow rate of the ordinary tap is about 1000 l / h. If the water flow index of the machine exceeds this value, the pressure may be small or unstable.
7. For the pneumatic cleaning machine, its high-pressure nozzle is one of the indispensable accessories when it works, and of course, it is also one of the easily damaged components. Once the high pressure nozzle is damaged, the cleaning effect will be greatly affected.
The high-pressure nozzle of pneumatic cleaning machine is the key component to carry out the dredging cleaning task. After using for a period of time, the nozzle hole will wear, the hole diameter will become larger, the outlet pressure will become smaller, and sometimes it will even be worn and deformed, and the water spray state will change accordingly. If the safety situation of the nozzle can be checked and checked in time, it will be conducive to the smooth dredging and cleaning work and can be effectively improved Cleaning efficiency.
 
Advantages of using water as cleaning medium for pneumatic cleaning machine:
 
1. The water is very safe, non-toxic and tasteless, so it will not cause any personal injury to the operator
 
When the water is used for cleaning, the specific heat capacity of water can be greatly reduced in the process of cleaning, because the specific heat capacity of water can be greatly reduced at high pressure
 
3. Fast cleaning speed: due to the combined crushing effect of water jet, such as scouring, wedge splitting, shearing and grinding, the scaling can be broken off immediately. It is several to dozens of times faster than the traditional chemical method, sand blasting method, simple mechanical and manual method.
 
4. Water has a suitable freezing point, boiling point and vapor pressure. Therefore, we can use the three state changes of water to realize energy conversion, so that the object to be cleaned can be dried quickly
 
5. Low cleaning cost: first of all, the medium used by high-pressure cleaning machine is tap water, which is easy to source and widely exists. In the cleaning process, because of its powerful energy, it can be cleaned without adding any fillers and detergents, so the cost is very low. Secondly, it is water-saving and energy-saving. This cleaning method is different from the fire-fighting water. It belongs to the fine jet spraying. The diameter of the nozzle used is only 0.4-2 mm, so the water consumption is only 3-5 m3 / h, and the power used is 37-90 kW, so it is a water-saving and energy-saving equipment.

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