System inspection
For some new systems, they cannot be used interchangeably with the heat exchanger immediately. First, run the new system for a specified period of time and let it have an operating mode before you can incorporate the heat exchanger into the system. Use, the purpose of this is completely to avoid the impurities in the pipe network from damaging the heat exchanger equipment;
Descaling
Acoustic wave prevention and descaling technology has been widely used in many industrial fields such as petrochemical, metallurgical power, sugar manufacturing, and pharmaceutical industries.
The ultrasonic descaling technology uses a series of effects of ultrasonic high-frequency pulsed oscillating waves on the metal surface of the heat exchanger and the liquid level of the internal materials to achieve the purpose of descaling.
The specific mechanism is that the ultrasonic oscillating wave vertically acts on the metal surface of the heat exchanger, causing it to propagate quickly in the metal. The repulsive force between the wall surface of the metal and the adjacent liquid surface causes the liquid to move away from the wall surface, and then returns to its original position. There is a time difference, a small vacuum area appears, the surrounding liquid will be filled quickly, and micro-vortexes are generated. This high-speed micro-vortex effect is generated again and again. The high-speed micro vortex effect prevents the scale components in the liquid from adhering to the metal. The conditions of the pipe wall, thus achieving the anti-scale effect.
The high-speed micro-vortex causes the liquid to continuously flush the soft dirt on the metal wall surface, so that the soft dirt flows away with the liquid, thereby solving the problem of soft dirt. Similarly, the high-speed micro-vortex can take away the air bubbles around the metal to prevent the metal from oxidizing.
For the hard dirt that has been attached to the metal wall, under the action of high-frequency vibration, due to the different elastic impedances of the metal and the dirt, the frequency response is also inconsistent. It is different vibrations that occur between the two. Hard dirt is more elastic than the metal. The difference is much, it will form a multidirectional micro-shearing shearing force inside, which will make the scale fatigue, crack, loose and fall off. At the same time when cracks occur, capillary effects appear. The liquid quickly enters the scale layer through the cracks. When it contacts the high-temperature metal pipe, the heated volume rapidly expands, accelerating the detachment of the scale. This achieves the effect of descaling.