Circulating water leak detection technology
Thread Content
One of the most troublesome issues in circulating water systems is detecting leaks; often, the leakage amount is very small, making it difficult to identify. However, if the leakage persists, it will increase the turbidity of the circulating water system, leading to the proliferation of microorganisms and sludge, which in turn accelerates equipment corrosion, creating a vicious cycle. Could everyone discuss what error-checking methods various companies use and what the results are? Are there any new quick methods for identifying gaps?
Checking for leaks in the circulating water is very important; I hope everyone will participate more.
Everyone should give more support to identifying leaks in circulating water systems; come up with more methods
When we look for defects, we use a straightforward method – checking each item one by one; of course, this is also done based on experience. I believe that having extensive experience is the best way to identify defects! Hehe!
The circulating water system covers a wide range of aspects, and there is no effective way to detect leaks; generally, we identify the problems step by step once issues arise with the equipment.
Push on your own. The common method for detecting leaks in circulating water is the residual chlorine method. The principle of this method is that chlorine can undergo substitution or addition reactions with organic substances in water; therefore, when organic substances come into contact with chlorine-containing water, the residual chlorine content in the water is rapidly reduced. By quickly measuring and comparing the residual chlorine levels in the water entering and leaving the heat exchanger, we can determine whether this heat exchanger is leaking organic substances, and the difference in these levels can be used to roughly estimate the amount of leakage.
I recommend the medium method: generally, the pressure of the circulating water should be lower than that of the system, in order to monitor changes in the quality of the circulating water and identify sections where leaks might occur, followed by further inspection. If the pressure is high, the approach is reversed. Let’s learn together.:handshake :lol
There are two situations when checking for leaks in a circulating water system: one is when the circulating water leaks to other areas； Another possibility is the leakage of other media into the circulating water system. It mainly relies on the following methods: 1. Water quality analysis – either the leakage of process media into the circulating water system or the leakage of circulating water into the process media can be detected through analytical data ； 2. Horizontal balance of the circulating water system, mainly used for large-scale leaks, generally referring to leaks in the underground piping network for circulating water. :handshake
These are all just personal opinions, okay! :P
There are many methods for detecting leaks: pH value monitoring, oil content monitoring, COD monitoring, residual chlorine monitoring, monitoring using specific instruments, and gas monitoring via sludge monitoring boxes. The residual chlorine monitoring method is fast, convenient, straightforward, and accurate in its judgments. However, it proves difficult to use in cases of very small leaks, as mentioned by the original poster. The heat exchangers in our factory also leak frequently, and especially minor leaks are a real hassle. The maintenance staff from Nalco in our factory highly recommend the residual chlorine monitoring method
Generally, monitoring the conductivity and ORP at the inlet and outlet of heat exchangers can help determine whether there is some leakage of materials； In chemical processing systems, liquid chromatography can be used to analyze the components of the leaked material, thereby determining which substance has leaked and which heat exchanger is leaking ； Wait, if you need anything else, you can contact me on MSN: vincent.sheng@live.cn