Could anyone provide information on exhaust compressors for styrene?

Compressors can be domestically produced, manufactured by the Shanghai 711 Research Institute. The imported ones are from Japan or Germany.

Thank you! How is the performance of those produced by the Shanghai 711 Research Institute?

The ones they made for Hainan were just launched recently. I visited there in November last year, and it seemed much larger than **’s products. Moreover, their sealing technology isn’t good either; I’m not sure about the details because I haven’t used them. Due to regulations set by **’s Petroleum Equipment Department, domestic products are preferred over imported ones, so for styrene projects these days, domestic exhaust compressors are generally chosen. Currently, the only domestic brand that can produce such compressors is 711. I talked to the director of their civilian products department last time, and it seems that ** has basically withdrawn from the market for products below model 608. So when it comes to compressors, 711 is the choice nowadays. As for whether your company is a state-owned enterprise, I don’t know; if it is, they will definitely use 711. If not, and if conditions permit, it’s still better to choose **’s products. Why do I say to choose **’s products? It’s mainly because the compressor technology of 711 isn’t very good. I’m in charge of 5 large units, one of which uses a 711 compressor, and almost the entire factory operates around this unit, which keeps breaking down – it’s extremely troublesome. The technology is indeed rudimentary, but their after-sales service is first-class, and their management is also excellent. As for German-made products, they’re too expensive. Right now, **’s products have seen a significant price drop, mainly because 711 is now able to produce exhaust compressors. When choosing products from **, there are several issues to keep in mind. First, their after-sales service is a pain – they require someone to come and pick things up, and that comes at an extra cost. After 20 service days, it costs $1,000 per person per day. Who doesn’t experience delays sometimes? So it feels bad to have to pay those bastards. Look at 711’s after-sales service: people have to cover everything themselves, but they still treat us well by inviting us for meals. We’re all human beings, so our relationships are very good. Second, spare parts are extremely expensive. Those bastard companies make the machines expensive to buy, but the spare parts cost an arm and a leg. I really wish I could strangle those jerks. In short, support domestic products – support 711. It is up to you to determine the specific usage conditions. Since the pressure ratio of the styrene exhaust compressor is not high, vibration and noise should not be severe. The main issues are how to prevent polymerization, as well as preventing oxygen from entering, otherwise it could become very dangerous and even lead to an explosion

In China, they don’t even allow it; if Japan doesn’t allow it, then fine. What kind of rule is this? ?

Kobe Steel’s equipment is good, but the after-sales service is a hassle; those Japanese are cunning. Thinking back to the days of dealing with them is unbearable. I’d rather buy two 711 models, one for use and one as a backup, than a small one.

The equipment at 711 has some minor issues, but overall it’s still fine

Thank you to everyone above for their valuable suggestions. What about German turbines?

Generally, higher performance is required for compressors. . Turbines can be made domestically! Our company’s recycle gas compressors are German-made, while the turbines are produced by Hangzhou Turbine Factory. :)

Wuxi Compressor Co., Ltd. is now able to do this: one option is domestic exhaust compressors, and the other is imported Kobe machine heads assembled in China. You can contact me at 13961894356; my email address is 13961894356@163.com