Catalytic feed oil nozzle model, how often should it be replaced
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What is the model of the nozzle for catalytic feed oil, and how often does it need to be replaced? Our unit is of the CS-2 type made by Luoyang Sende, and our replacement cycle is 3 years
The only remaining models of crude oil nozzles are the CS type produced by Luoyang Sende; its inventor is Chen Qubei and its operator is Xu Dongwu. There is also the KH type nozzle developed by the Institute of Mechanics of the Chinese Academy of Sciences, with Chen Zhijian as its operator. Lastly, there’s the BWJ type from the Beijing Design Institute – this type of nozzle is rarely used these days. In terms of technical performance, the CS type nozzles have the best qualities and the longest service life, thanks to the material support provided by the Iron and Steel Research Institute. From a marketing perspective, the CS type holds an advantage; Xu Dongwu has a background in machinery engineering and is skilled in business management. Initially, he focused on producing lift pipes and trays, but entered the nozzle market after 2005. By offering free trials, he managed to gain a large share of the market. The BWJ type nozzles from the Beijing Design Institute have the worst technical performance and usability. Currently, they are only used in two catalytic units in Lanzhou. The CS type nozzles wear out within less than a year when used with heavy oil with a viscosity of 0.92 or higher, while they can barely last three years when used with light oil
BWJ isn’t that bad; each unit has a capacity of 35 t/h, and as far as I know they do have such units. Used CS-II for a year; there are likely issues with its operation