2007-03-13 10:31:45 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
I already answered this yesterday. The only way to get water into a pressurised boiler is by forcing it in with a Feed Pump.
The feed pump pressurises the water to about 10% higher pressure than the boiler drum pressure which allows the water to enter the boiler. The feed water is first dearated and is then heated in boiler uptake economiser. To a temperature just below saturation temperature.
Its pretty obvious really.
If you know of any different method then congratulations on discovering the most important engineering find of the last 100 years.
2007-03-13 15:28:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Pumps, called injection pumps, are used to force feed water back into the boiler. They don't have to be big, and usually are not. All the pump really has to do is to keep up with the amount of steam produced per hour. A little water, makes a lot of steam.
2007-03-13 11:06:30 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Steam locomotives and traction engines generally used injectors, as well as mechanical pumps, to get water into boilers under pressure. Injectors are no-moving-parts pumps based on Bernoulli's principle. See my answer of yesterday on how an injector works, if you are interested.
2007-03-13 19:27:07 · answer #3 · answered by Martin 5 · 0⤊ 0⤋
you employ a feed pump. the two a very good displacement or centrifugal pump the feed tension for a boiler working at approximately 600psi should be approximately 750psi. The feed water is often heated in an economiser in the previous it enters the boiler drum.
2016-12-14 18:16:19 · answer #4 · answered by ? 4 · 0⤊ 0⤋
i should imagine the boiler would have a non return valve so you pour the water through without it spitting it back
2007-03-13 13:28:30 · answer #5 · answered by moose71@btinternet.com 1 · 0⤊ 0⤋
every steam engine has a pressure relief valve
open the valve to relief the pressure, then you ad water
2007-03-13 10:42:36 · answer #6 · answered by argus 5 · 0⤊ 1⤋
Run the water at an even higher pressure.
HTH ☺
Doug
2007-03-13 10:34:30 · answer #7 · answered by doug_donaghue 7 · 0⤊ 0⤋
Probably not a good idea....better to cool it down first and start over.
2007-03-13 10:35:16 · answer #8 · answered by Anonymous · 0⤊ 0⤋
see the air lock in space movies..or submarines..
open top door fill with water
close top door
open bottom door
water falls in close bottom door
2007-03-13 10:44:44 · answer #9 · answered by Anonymous · 0⤊ 1⤋
big powerfull pumps force it in,
2007-03-13 10:35:36 · answer #10 · answered by Justin H 4 · 1⤊ 0⤋