Torch system replacement plan
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Our company’s torch system has been in use for 9 months, and it is now scheduled for maintenance. Who has a good method for a replacement torch system, with a diameter of 700 mm and a length of 1000 m, without insulation? The key is to figure out how to handle the condensate oil, condensed water, ammonium salt crystals, and ferrous sulfide inside; it would be best to have a comprehensive solution for this.
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Isn’t all the condensate sent to the flare condensate tank? It can be pumped back; as for the water-sealed wastewater, it goes to the wastewater treatment plant； To prevent spontaneous combustion of ferrous sulfide, keep the temperature below 40 degrees; after proper detection and isolation, carry out welding operations under nitrogen protection
It’s about figuring out the best way to carry out this replacement. How much steam is needed to steam a 700-series pipe? How long does it take? Once the steam enters, does it all condense into hot water? Is that an effective method? That’s the key question. I also know the tricks involved in replacement
Would it be more cost-effective to use condensate water for steaming for 2 days first and then steam? In our factory, the condensate water isn’t useful at all – it’s just discharged. It costs around 3 yuan per cubic meter. Using steam, on the other hand, costs 220 yuan per ton. The pipes are 2 meters long and not insulated; how much steam will be needed to achieve vaporization? It must cost over 100,000 yuan