Usage of anode protection acid coolers, anode protection acid distributors, and anode protection pipelines
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Find out what unit is used by everyone for producing anode protection acid coolers, anode protection distributors, and anode protection pipes. How is it being used? This post was last edited by txglyl on 2009-2-17 21:18]
Our factory uses products from Xingye in Lanzhou, Gansu, and the performance of these products is average. One thing that I’m not satisfied with is that the design of the inlet and outlet on the acid side is unreasonable – there is no expansion section, which results in increased resistance.
Jiangyin Petrochemical’s product works well. There have been almost no problems; it’s just that a few spare boards are needed.
Our company uses products from Nanjing Gaoyuan; the performance is average. Only 3 months after we started using the potentiostat, it began to malfunction: Q
The one we are using currently is from Lanzhou; it works fine, but the industrial water heater has leaked a few times. (The temperature of the incoming acid is 110 degrees, while the temperature of the hot water produced is 60 degrees.)
We have used products from Lanzhou Xingye, Tianhua Machinery, as well as those from Jiangyin; all of them have been tried. Those from Jiangyin performed relatively well – the acid-absorbing coolers that were 8 years old did not experience any problems. The performance of the others was average. Everyone here can discuss whether it is better to use welded tubes or seamless tubes for the heat exchange tubes in anode protection shell-type concentrated acid coolers
:We haven’t used those from Jiangyin; currently we are using 3 acid coolers made by Gaoyuan (for drying, first absorption, and second absorption). We’ve been using them for almost three years now, and no problems have occurred. Of course, we replaced the potentiostat once during that time (it was a spare circuit board that came with the delivery). As for the claim that the instruments break down after just 3 months, I personally think it has a lot to do with the way they are operated. :o
Welded pipes are manufactured using cathodic argon arc welding; after solid solution treatment, the corrosion resistance of the welds is equal to that of the base material. At the same time, welded pipes are made by rolling thin sheets, resulting in minimal deformation. Seamless tubes are drawn cold, resulting in significant deformation; if the heat exchange tube is longer than 6 meters, it is difficult to ensure uniformity on its surface. So we feel that welded pipes are still the better choice.
I agree with the above view. Welded pipes are made by welding stainless steel cold sheets together; these cold sheets have excellent uniformity in thickness. Seamless pipes are generally produced through cold drawing, and especially when the wall thickness is relatively thin, uneven thicknesses in the pipe can occur more easily. Therefore, it is recommended to use welded pipes.
I have a question: why is the current high in an acid cooling unit?