Flue gas cooler in ultra-low emissions of desulfurization projects
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As the title suggests, I have been working on the design of flue gas coolers and flue gas condensers for desulfurization projects recently. I have gathered quite a bit of information regarding their internal structure – mainly rectangular fins with a spacing of around 10 mm and a thickness of approximately 1 mm. But what is their external structure like? How is it fixed? Can’t imagine it? I hope that among those who work on such projects, some of you can take pictures of the heat exchangers used in ultra-low emission systems and share them with me for reference Thank you all.
There are manufacturers specialized in producing such rectangular fins, right next to my company
Is no one in this industry?
This post was last edited by wiseboy on 2018-8-10 at 16:32. There is no difference between heat exchangers with ultra-low emissions and those used for ordinary flue gas treatment. Its general configuration is as follows: 1. Ordinary shell-and-tube heat exchangers: floating head type, fixed tube sheet type – these belong to the tube-type category; they can be used when the gas flow rate is not high, since the shell diameter limits the amount of gas that can pass through ； 2. Box type: It belongs to the shell-and-tube type; the enclosure is rectangular in shape and is used when a large volume of gas needs to be processed, as its processing capacity is much higher than that of type 1 ； 3. Plate type: Most suitable when a low temperature difference is required, but it has a relatively high pressure drop. Due to the different forms of enclosures, each has its own advantages and disadvantages in terms of layout, and they are all in use. This year I designed several flue gas heat exchangers with a processing capacity of over 300,000 cubic meters each; due to the large volume, box-type designs were used for them all. Several design institutes have also designed flue gas heat exchangers of 10,000 cubic meter capacity this year, such as Tianx Shareholding. At my suggestion, box-type units are now used, whereas before they used multiple fixed-tube-sheet heat exchangers. .
Oh, H-type finned tubes are used these days.
This post was last edited by wiseboy on 2018-8-10 at 16:36. Finned tubes are definitely used for heat exchange tubes. There are H-type fins (which belong to wound fins), as well as more efficient through-fin types (which belong to integral fins)
H-type fins are spirally wound fins； A through-fin, or integral fin, is one in which the entire fin consists of a single plate through which the tube passes.
We specialize in flue gas coolers, using spiral-welded finned tubes; the equipment is delivered to the site as individual components!
Could you send some pictures of the equipment installation on site? What I used to make were flue gas coolers with tubular enclosures, located on two separate platforms. And now it’s about ultra-low emissions, but I don’t know where to place it on site? So the casing won’t be designed, ahhhhhh. . . . .
Amazing, bro! Could you share the overall structure? No need for specific parameters – let us younger folks learn from it too.
This is the structure of the flue gas cooler we designed, for reference only!