The cleaning methods of air compressor parts can be roughly divided into two types: chemical cleaning and high-pressure water spray cleaning. The two cleaning methods can be said to have their own advantages. Today, Xiaobian will introduce you to high-pressure water spray cleaning. High-pressure water jet cleaning is to use the high-pressure water generated by the plunger pump to spray to the scale layer through a special nozzle. Woolen cloth?
Ultrasonic descaling:
It mainly uses the ultrasonic sound field to treat the fluid, so that the scale-forming substances of the fluid species undergo a series of changes in their physical form and chemical properties under the action of the ultrasonic field, so that they are dispersed, pulverized, loosened, and loosened and are not easily attached to the pipe wall. dirt. The antifouling mechanism of ultrasonic is mainly: A. cavitation effect; B. activation effect; C. shear effect; D. inhibition effect.
In-pipe mobile descaling equipment descaling:
The new type of mobile descaling equipment in the pipeline has high efficiency and good quality, and is suitable for descaling of oil and gas pipelines and chemical liquid and water pipelines.
According to different driving methods, typical mobile scale removal equipment in pipelines are divided into: A. Electric driven mobile scale removal equipment; B. Hydraulic driven mobile scale removal equipment; C. Compressed air driven mobile scale removal equipment.
It relies on mechanical action to provide a force greater than the adhesion of the dirt to make the dirt fall off the heat exchange surface. This method can remove carbonized dirt and hard scale that cannot be removed by chemical methods, but it generally takes 5-6 times, sometimes up to 10 times, to clean the scale layer in the pipe, resulting in low pigging efficiency and poor quality.
Operation steps of mechanical cleaning of straight tube heat exchanger:
1. Prepare the air compressor and water source;
2. Remove the short joint on the water pipe of the heat exchanger;
3. Unscrew the fastening bolts of the heat exchanger head, and rotate the head 180 degrees to expose the heat transfer tube;
4. Insert the nylon brush into the heat transfer tube until the air block on the nylon brush completely enters;
7. Push the nylon brush back from the other end of the heat exchanger, and brush it repeatedly for more than 3 times;
8. Rinse the heat transfer tube with water with a pressure of 0.3MPa;
9. Change a heat transfer tube and repeat the above 3 steps until all the heat transfer tubes are cleaned;
10. Check the color in the heat transfer tube, if the copper color is exposed, it is qualified after washing;
11. Rotate the head back, check whether the sealing gasket of the head is flat, and tighten the fastening bolts of the head of the heat exchanger;
12. Connect the short joint on the water pipe of the heat exchanger;
13. Take care of the scene.