【Major Industrial Equipment in the Chemical Industry】191 – High-pressure hydrogenation reactor for spandex production
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Red May for chemical industry workers! Reply reward! ---------------------------------------------- The past decade has been a period of rapid development in China’s chemical industry, marked by the emergence of many new processes, products, and equipment. There has also been significant progress in China’s chemical processing equipment, which has contributed to the swift advancement of the petrochemical sector. Here, we have compiled some of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and greater use of domestic equipment. We invite everyone to share their insights and discuss these topics together; let’s cheer for Made in China and support the development of chemical processing equipment! =====================
On December 16, 2021, the high-pressure hydrogenation reactor for the first phase of Wuheng Chemical’s project related to spandex and biodegradable materials, which was designed and manufactured by Lanshi Heavy Equipment, is nearing completion and is about to be delivered. There are a total of 6 high-pressure hydrogenation reactors in this project. The equipment features a small diameter, a large number of shells, and a high pressure drop across the bed layer. The end of the cylinder is equipped with a constricted opening at an inward angle; the primary seal consists of stainless steel double-cone rings, while the corresponding sealing surface is of a surfacing-welded structure. During the development process, the R&D and sales center of Lansi Heavy Equipment and the refining company strengthened communication and coordination, working closely together; by using various verification methods, they overcame design challenges such as calculating the thickness of flange covers with large openings, determining the dimensions of double-cone sealing surfaces, calculating the non-standard structures at the ends of the cylinders, and selecting the appropriate specifications for connection bolts ； By optimizing manufacturing processes and innovating welding techniques, production challenges such as high precision requirements for surfacing on forging protrusions and small deep-hole nozzles, as well as for sealing surfaces, and the need for precise openings in the internal cylinder components, were overcome, thereby accelerating the manufacturing process.
Look at this wall thickness, and look at its small size – the pressure must be significant@BookBoy @RedLee_ZZHI @TheImposingUltraman. @Nuts @WiseOne
It doesn’t have to be very thick, after all, it’s not a forged or welded piece.
The equipment port flanges should be of 1500 or 2500LB grade; this is the first time I’ve seen a hydrogenation reactor like this – it’s really interesting.
It’s not simple! Like: victory: