high performance Industry thermal oil boiler boiler parts boiler
drum
Boiler Parts
Boiler Drum,Boiler Waterwall Panel,Boiler Economizer,Boiler
Header,Boiler Super Heater,Boiler High Temp Superheater,Boiler
Cyclone Separator,Boiler Flue,Boiler Heat Pipe Air Preheater,Boiler
Gen Bank,Boiler Heat Pipe Elements,Boiler Tube Pin,Boiler
Tubeshield,Boiler Ditch Tube.
working
The separated steam is drawn out from the top section of the drum
and distributed for process. Further heating of the saturated steam
will make superheated steam normally used to drive a steam turbine.
Saturated steam is drawn off the top of the drum and re-enters the
furnace in through a superheater. The steam and water mixture
enters the steam drum through riser tubes, drum internals
consisting of demister separate the water droplets from the steam
producing dry steam. The saturated water at the bottom of the steam
drum flows down through the down comer pipe, normally unheated, to
headers and water drum. Its accessories include a safety valve,
water-level indicator and level controller. Feed-water of boiler is
also fed to the steam drum through a feed pipe extending inside the
drum, along the length of the steam drum.
A steam drum is used without or in the company of a mud-drum/feed
water drum which is located at a lower level. A boiler with both
steam drum and mud/water drum is called a bi-drum boiler and a
boiler with only a steam drum is called a mono-drum boiler. The
bi-drum boiler construction is normally intended for low
pressure-rating boiler while the mono-drum is mostly designed for
higher pressure-rating.
On steam locomotives the steam drum is also called a steam dome.
Boiler Parts
Boiler Super Heater,Boiler High Temp Superheater,Boiler Cyclone
Separator,Boiler Flue,Boiler Heat Pipe Air Preheater,Boiler Gen
Bank,Boiler Heat Pipe Elements,Boiler Tube Pin,Boiler
Tubeshield,Boiler Ditch Tube
Suzhou ORL Power Engineering Co., Ltd.is located in Suzhou, Jiangsu
Province.
ORL Power is a leading company and exporter of industrial
boilers,power plant boilersand boiler parts (including steam drum,
membrane waterwall panel,header,economizer, evaporator,
superheater,H-fin economizer, spiral fin tube, air preheater, heat
pipe, flue etc.), seamless steel tubes/pipes and ERW steel
pipes.ORL provides our customer with full range of services
including boiler design, fabrication, installation and
commissioning, boiler maintenance, and supervision at site. Our
product and service include design and manufacture industrial
boilers, pressure vessels and tanks, and pressure parts for power
plant boilers (600MW, or 1000MW).
Structure and material
The working conditions of drum are complex and the consequences of
accidents are serious. It is necessary to strictly control the
chemical composition, mechanical properties and welding and
processing quality of material used in drums, and to pass a series
of strict tests. The cylinder is composed of a cylinder body and a
head.
1. Cylinder:refers to the cylinder part of the drum. Its inner
diameter and length are related to the circulation mode, boiler
capacity, steam parameters and the structure of inner equipment.
Steam drum is usually rolled on multi-roll reel machine. The drum
wall of subcritical pressure boiler is too thick to be pressed on
giant press.
2. Head: Subcritical pressure boilers are usually hemispherical,
high pressure and ultra high pressure boilers are ellipsoidal,
medium pressure boilers are relatively flat ellipsoidal, with
manholes on the head for installation and maintenance of internal
devices. The head is pressed on a hydraulic press or an oil press.
