And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
Triple expansion turbine set designed to balance pressure loads. The HP turbine flows towards the camera, then the full flow goes to the MP turbine flowing away, then the flow is split to the twin LP turbines that are balanced too. The generator attached at the near end must be a monster.
When they work on ours, everyone has to turn out their pockets and make sure there's nothing that can fall out and into the machine. All tools are tethered. Access is limited to only those who are actually working on it. No lookie-loos or sight seeing. Rigidly enforced.
BTDT, we called second rotor IP. Looks like a 3600 rpm unit, probably one or two hundred MW output. When operating, the balance test was a nickel standing on the front, just below pic. That's where the controls are.
To Anon @ 2:59, try millions of $. At one power plant in Canada a turbine being off loaded from a barge was rigged incorrectly and dropped into the harbour. It cost millions to replace and further millions in project delays. It’s an expensive business.
Always wondered if steam turbines had to be made of stainless steel. Dad worked in an oil refinery and always talked about the “dry steam” they used to trace lines that required heating as well as its use in creating the vacuum for the furnaces used in distilling the crude. Would think everything would rust as far as a layman’s understanding of what steam is but the conversations about it always left me scratching my head about the physics/chemistry of high pressure steam. Made me think it was just literally hot air with a water molecule or two floating around in it.
I'm pretty sure they were not stainless steel, but without any oxygen in the steam when they are running rust isn't a problem. The condenser is pulled down to a fairly hard vacuum and systems inject chemicals into the feedwater to scavenge any O2 left over. High pressure steam is 100% angry water molecules, no hot air at all.
Triple expansion turbine set designed to balance pressure loads. The HP turbine flows towards the camera, then the full flow goes to the MP turbine flowing away, then the flow is split to the twin LP turbines that are balanced too. The generator attached at the near end must be a monster.
ReplyDeleteThanks for that explanation; without balancing the pressure would the size and output be limited by case strength?
DeleteProbably not. They just run up against a thrust surface.
Delete"So Mac, exactly where were you standing when you noticed your watch was missing?"
ReplyDeleteWhen they work on ours, everyone has to turn out their pockets and make sure there's nothing that can fall out and into the machine. All tools are tethered. Access is limited to only those who are actually working on it. No lookie-loos or sight seeing. Rigidly enforced.
DeleteFME
DeleteThose are really just tiny little guys, right?
ReplyDeleteFor some reason we never took the covers off those things.
ReplyDeleteIt is like a Watch, if you take the cover off you will never get it back together.
DeleteA watch you open with a sledge hammer to open (aka slugging) after you heat the studs holding it together..
DeleteThey only come off if the bearings go bad or you're doing a massive uprate.
DeleteI'd like to see the lathe they turned that shaft on.
ReplyDeleteThe machinists who worked on that knowing a little mistake would cost thousands and maybe their job.
DeleteWhere the DEI folks?
ReplyDeletePerfect question.
DeleteYeah, the muzzis who are showing these guys how to do this must be on break.
DeleteBTDT, we called second rotor IP. Looks like a 3600 rpm unit, probably one or two hundred MW output. When operating, the balance test was a nickel standing on the front, just below pic. That's where the controls are.
ReplyDeleteCloser look, new installation because turbine deck is missing.
ReplyDeletesteam turbine rotor from a power plant, HP/IP/LP multistage unit.
ReplyDeletewe had much smaller ones on Nike subs.
And perfectly balanced!
ReplyDeleteTo Anon @ 2:59, try millions of $. At one power plant in Canada a turbine being off loaded from a barge was rigged incorrectly and dropped into the harbour. It cost millions to replace and further millions in project delays. It’s an expensive business.
ReplyDeleteAt Turkey Point, they dumped on trying to get it off the barge.
DeleteAlways wondered if steam turbines had to be made of stainless steel. Dad worked in an oil refinery and always talked about the “dry steam” they used to trace lines that required heating as well as its use in creating the vacuum for the furnaces used in distilling the crude. Would think everything would rust as far as a layman’s understanding of what steam is but the conversations about it always left me scratching my head about the physics/chemistry of high pressure steam. Made me think it was just literally hot air with a water molecule or two floating around in it.
ReplyDeleteI'm pretty sure they were not stainless steel, but without any oxygen in the steam when they are running rust isn't a problem. The condenser is pulled down to a fairly hard vacuum and systems inject chemicals into the feedwater to scavenge any O2 left over. High pressure steam is 100% angry water molecules, no hot air at all.
DeleteNukes run on 'dry' steam. Above my pay grade.
ReplyDelete