Discussion on electromagnetic descaling technology for circulating cooling water systems
Thread Content
I’ve read a lot about methods for removing scale from circulating cooling water. In China, chemical cleaning is the most commonly used approach, but it certainly isn’t a solution that can provide long-term results. Recently, I learned about an electromagnetic scaling removal technique; I won’t go into detail about its principles here – you can look them up on Baidu if you’re interested. I’ve compared several companies, and each has its own advantages and disadvantages. One company that performs well is called Qingyu Environmental Protection. What sets it apart from most other manufacturers of electromagnetic scaling removal devices is its ability to handle entire circulating cooling systems with large pipe diameters. It uses frequency-scanning electromagnetic technology. Other manufacturers either focus on treating individual heat exchange units only, or their electromagnetic scaling removal devices aren’t capable of meeting the requirements for treating water quality in complex systems. At present, electromagnetic scaling removal technology is mainly effective for specific types of scaling; it cannot handle all kinds of complex scaling situations. For example, it’s very effective against carbonate scaling, with results visible within 3 to 6 months. Its effectiveness against sulfate scaling is relatively lower, and it’s even less effective against silicate scaling. Apart from chemical cleaning, is there any effective method for removing scale that can deal with various complex scaling scenarios? After all, the water quality varies from one manufacturer to another. I’d appreciate it if everyone could share their thoughts – feel free to comment below~
This is electromagnetic descaling; the principle of electromagnetic heating can be found on Baidu. I think it’s possible to use the heating principle of induction cookers as a reference: D
Talk about the working principle and case studies of its effectiveness. Thank you.
In simple terms, scale formation mostly occurs in the form of calcite. An electromagnetic scale remover uses an alternating electromagnetic field to disrupt the calcite scale, converting it into aragonite, which is less prone to forming scale, and then expels it from the system. Meanwhile, the electromagnetic waves create turbulence in the water, affecting the ion channels in cell membranes and altering the internal electrical currents that cells rely on as well as the environmental conditions necessary for their survival. It renders them unable to survive and causes their death, thereby serving to kill bacteria and algae. Additionally, when water is exposed to electromagnetic energy, individual water molecules incorporate oxygen molecules dissolved in the water, turning this dissolved oxygen into inert oxygen; this cuts off the source of oxygen required for metal corrosion, thus helping to prevent rusting and corrosion. In terms of use cases, to assess this effect, one method is to check the temperature of the water before and after it passes through the device; another method is to take photos of the equipment before and after disassembly, with the images showing the results before and after use – the difference is quite significant.
Is there any information about the manufacturers? Principles and examples?
I am paying attention to electromagnetic descaling technology for circulating water. Recently, I worked with two companies; one uses this technology. There are no existing case studies available, but a qualitative experiment was conducted using their equipment, and it was confirmed that it can indeed absorb calcium and magnesium ions. But the investment is high, and descaling is also rather troublesome. Another company uses a bypass to add descaling equipment; it is said to be suitable for various situations, and we are currently gathering information on it.
One can learn about the methods of electrochemical descaling
Bypassing means the electrochemical descaling method mentioned by the guy below
For electrochemical processes, a bypass needs to be installed, right? But do electrochemical devices need to be cleaned frequently? The cleaning frequency increases when the water quality at the cathode and anode plates is poor. Also, the reaction plates probably need to be replaced often, right? I see there’s also an automatic descaling option, but it seems that the descaling device isn’t very durable either
The principle of electrochemical descaling is to adsorb scale onto the cathode plate; there is also automatic descaling, in which the scale attached to the plates is removed using scrapers