Discussion on all-liquid air separation manufacturers, processes, configurations, performance, and energy consumption~~
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I’ve been quite interested in liquid air separation recently. If any of you here are working with or operating liquid air separation systems, I’d appreciate it if we could discuss the manufacturers, processes, configurations, performance, and energy consumption related to such systems~~ Thank you~~
You should turn to @A Grain of Sand in the Desert; he’s an expert in this area. :lol
I’m looking to install a liquefaction unit with a capacity of 10,000 m3/h. Which manufacturers offer the best equipment in terms of performance, and which ones provide the best cost-performance ratio? Could you please give me some recommendations?
Those who don’t mind spending a lot of money can choose Hangyang, Kaikong, and Chuankong~~But nowadays, smaller gas equipment companies also perform well, such as Fosda, Deere, Xinglu, etc.~~For specific quotes and equipment specifications, contact several of these companies to get their quotes and then compare them~~
Let’s take a look at Air Liquide, Hangzhou Oxygen, and Sichuan Air as well; they are really good
Of course, operational reliability is a key factor to consider, but it doesn’t necessarily reflect the cost-effectiveness. As we all know, the cost of liquefaction is quite high at present; if various factors aren’t taken into account, the consequences can be severe once an investment is made. Given the volume of production we require, what level of cost can be achieved for liquefaction?
Indeed, the current liquid market is in a terrible state; at best, prices are at cost level, while in worse cases they are even negative~~
The liquefaction unit operates for only 10 hours a day before shutting down, to restart the next day. Is there any risk in doing this?
It’s easier to operate when it’s cold~~ just make sure to maintain the pressure~~
Air Liquide France, Hangzhou Oxygen, and Sichuan Air are all good choices
Can the bearing temperature withstand prolonged operation of the expander in a cold state with the oil pump running continuously? There are also frequent startups – does this have a significant impact on the labyrinth seal of the unit? As far as I know, the soft materials similar to Babbitt alloy used for the back seals of the expanders at Sichuan Airlines tend to get caught in the teeth of the labyrinth seal.