【JST-070】One-on-one assistance office for hydrogen production and air separation equipment maintenance
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This post was last edited by Firefly on 2015-4-10 08:42. My area of expertise is equipment maintenance and management. Work experience: 9 years in mechanical manufacturing and processing, 8 years in the maintenance of hydrogen production and air separation equipment. Aware of my limited knowledge, I am still willing to accept the evaluation from my friends, turning pressure into motivation to help one another grow. Forget the challenges related to steam turbines; I’ve never dealt with them before – it’s all my teacher who handles those matters ； Those who work in design are one thing, but I studied pure mechanics; I switched to this field later on, so my skills are very poor. :handshake
Are you familiar with PSA nitrogen generation systems? I have a question I’d like to ask!
Please go ahead. I am in charge of equipment maintenance, but my colleagues are very familiar with the process equipment, so feel free to bring up any issues for discussion.
This post was last edited by salesment on 2012-4-10 09:14. Do you have any experience in air separation unit management? I hope you can share it with me:):):) (Answer: 5th floor)
This post was last edited by niumowang on 2012-4-16 at 13:36. You can go and buy a relevant book to read; in my opinion, air separation is a process system that requires a high level of uptime. Regular maintenance and inspections of all equipment are very important – by detecting abnormalities promptly, it becomes possible to find solutions early on, preventing the situation from worsening, which makes it easier to handle the problems.
In electrolytic hydrogen production, how should the deionized water cooling system be operated? It is used to cool the thyristors in the rectifier cabinet.
Hello, I’m not quite sure what you’re asking. Based on my understanding, here’s what I know: My unit uses electrolysis equipment provided by the 718 Institute. The cooling system relies on two refrigerators as the cold source for the entire system, one of which is used to cool the thyristors. The cooling water pressure at that location is also around 1 Bar. The small fitting used to connect the cooler there is prone to corrosion, and the manufacturer’s design philosophy is to prioritize the protection of the thyristors at the expense of this fitting. So if it breaks here, just replace it regularly.
A coworker asked me； Centrifugal compressors used for air separation generally come equipped with a high-level oil tank; why then don’t Atlas air compressors have such a tank? I was wondering if you could help me answer it
The high-level oil tank is one of the safety protection devices for the machine unit. During normal operation of the machine, the lubricating oil enters from the bottom and then exits from the top, flowing back directly into the oil tank. In the event of a power failure that causes the machine to stop, and if the auxiliary oil pump cannot start in time to supply oil, the lubricating oil in the high-level oil tank will flow through the oil inlet pipes, pass through each bearing, and then return to the oil pipes, thereby ensuring an adequate supply of lubricating oil during the machine’s coasting phase. This is the principle of operation of the high-level oil tank. Of Atlas compressors, I have only worked with reciprocating types. I have 5 centrifuges from Cameroon on site, and none of them have high-level oil tanks. There isn’t even a reservoir. In terms of design, if there is a power loss, there is indeed no lubrication protection available. It seems that a high-mounted fuel tank isn’t necessary after all.
We are also using the electrolytic hydrogen equipment from Unit 718. The oxygen-side equipment of the gas-liquid separator is prone to corrosion; our unit’s oxygen-side coolers have leaked on many occasions. Is there any way to solve this problem?
This post was last edited by salesment on 2012-5-3 at 16:17. We also use electrolytic hydrogen production equipment from Institute 718. The oxygen-side components of the gas-liquid separators are prone to corrosion; our unit’s oxygen-side coolers have leaked several times. Is there any way to solve this problem? (Publisher’s note: Refer to answer on floor 14 for reference.)