collapse. Is this unsolvable?
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Our factory is a fine chemical factory. Those in charge of civil engineering in the factory do not understand technology, and those in charge of technical formulas do not understand technology or machinery. In short, it means "everyone performs his own duties." The ugly thing is that he is afraid that you will know everything and run away. The only manager who seems to know everything is actually a technical background and knows nothing except technology. There is a Class A workshop in the factory, which is 24 meters high. There is a large pool of about 300 cubic meters on the roof, with two counter-flow square cooling towers placed on top of the pool. There is an underground pool next to the workshop, which is about 300 cubic meters. It is pumped up to the rooftop pool to provide circulating cooling water for the entire workshop (the circulating water flows down by itself through the gap). There are about 30 tubular heat exchangers in the workshop, with a heat exchange area of about 20 to 60m2, and occasionally one or two of 100m2. Here comes the problem. Moreover, the problem that has persisted for more than ten years since the establishment of this factory is poor heat exchange effect. Then one day we disassembled the heat exchanger and discovered that there was almost no solution. The mud inside was very clogged. Where did the mud come from? Is it because the roof pool and cooling tower are covered with moss? I usually clean the moss during long holidays, but the effect is not obvious. It only takes a month for it to grow back. So, just like that, it has never been resolved. I've read that it can be suppressed by adding medication, but I haven't tried it yet. Now it’s time to build a new factory. Those in charge of civil engineering resolutely use the circulating water method of high-level pools and underground pools (the reason is: It can ensure that there is no shortage of water. Simply using closed pipes and pumps may cause insufficient water in some heat exchangers.) He speaks from experience and cannot provide data. However, I have been to so many companies in the same industry, and none of them adopt this method (high construction costs). They are all an underground pool plus cooling tower, and then used closed pipelines and pipeline pumps for transportation. Those who are in charge of technical craftsmanship don’t understand either. However, I am a newbie (relatively speaking), I speak lightly, and even if I don’t say anything, I just don’t see it and complain. By the way, I would like to ask the experts, how to inhibit the growth of moss? How to ensure the cleanliness of this circulating water? How to prevent this kind of blockage in the heat exchanger? If this kind of blockage occurs, is there any other way to clear it apart from disembowelling it?
Generally, pharmaceuticals are chosen, and there are many advanced technologies available. Of course, you get what you pay for.
It is recommended to inspect several peers with leaders. Open circulating water systems inevitably have existing water quality problems, and even underground pool solutions require multi-sedimentation, filtration, and chemicals for maintenance. Building a new factory requires solving the root cause of the problem. Complaining will not solve the problem. Thinking of ways to solve the problem is the key.
Water quality must be tested, filters must be installed, and configurations must be complete. Circulating water is a very complex system project that should not be underestimated.
Let the media currently in the shell process go to the tube process
1. Add scale and corrosion inhibitors to prevent corrosion and reduce structure； 2. Add bactericidal algaecide to reduce the formation of green moss ； 3. Increase the water pump flow to force circulation, increase the circulating water velocity, and reduce sedimentation. ； 4. If possible, it would be better to change the heat exchanger to a vertical type. ； 5. Regular pickling
Another is regular drainage replacement
This question is not complicated, and you can understand the meaning. It is recommended to submit it in writing to the big boss who is true to his word, and take the opportunity to show it, maybe it will be reused immediately. This is not a problem. There is a design institute, or you can find a water treatment unit to take charge. It’s hard to do things without spending money :P
1. Closed cooling tower 2. Regular sewage discharge 3. Install quartz sand filter and activated carbon filter 4. Add bactericide and scale inhibitor 5. Circulating water quality (soft water or pure water) depends on the heat exchanger requirements 6. Increase the circulating water flow rate
I think there is no need for small factories to bother so much. The most important thing is to manage the circulating water well, including dosing, flushing, and pre-filming. Especially leaks in the heat exchanger must be discovered in time, otherwise organic matter will leak into the circulating water and microorganisms will grow quickly.