Power Station Boiler Drum In Thermal Power Plant Carbon / Stainless
Steel
Product Introduction
Drum is used for separation of water tube boiler and steam
purification, composition of water circulation loop accumulation of
pan of water and the cuylindrical pressure vessel main role for
acceptance of economizer water, separation and to supply water to
the water loop, to superheater with some watyer in the saturated
steam drum, have a certain quantity of heat of substance and
savings, can slow the steam pressure change when conditions change,
when the water supply and load a short period of time not at the
time of the coordination of certain internal devices are installed
in the cushion the drum, for sepsrstion of steam cleaning pot
dosing continuous drainage, so as to ensure the quality of steam,as
shown in figure Drum is the most bulky and expensive thick wall
pressure parts in the boiler not only bear high internal
pressure,but also due to the change of operating conditions, but
also due to the fluctuation of wall temperature thermal stress, so
the working conditions are bad, need to carry out effective
operating conditiuons supervision
Work processing
1, from the water wall of the soda mixture through the drum upper
pipe into the drum inside, along
The inner wall of the drum and arc lining plate formed by the
narrow annular channel flow, so that the soda mixture at the
appropriate velocity of uniform heat transfer to the inner wall of
the drum, so as to overcome the boiler start and stop the drum wall
temperature difference is too large difficulty, can be quickly
started.
2. The soda-water mixture entering the drum enters the soda-water
cyclone separately, and USES the inertia when changing the flow
direction to conduct the inertia separation. This is the first
separation of the soda-water mixture.
3, is separated from the steam is still with a lot of water, from
the top of the separator into the corrugated plate separator, it is
installed on the top of the cyclone separator, with some water
droplets of steam flow in the gap between the corrugated plate,
using to make water adhere to the metal wall surface to form water
film downstream.
4. The steam after the second separation is finally cleaned by
steam, and gravity separation is carried out by using the density
difference of water, which is the third separation.
5, steam after three times of separation, reached the steam quality
standard, and then by the top of the drum saturated steam pipe to
the screen superheater
Drum Function
1, is the working medium heating, evaporation, overheating three
process connection hub, to ensure the normal water cycle of the
boiler;
2, the internal steam separation device and continuous sewage
device, to ensure the quality of boiler steam;
3. Certain amount of water and heat storage capacity to ease the
change rate of steam pressure;
4. The drum is equipped with pressure gauge, water level gauge,
emergency water discharge, safety valve and other equipment to
ensure the safe operation of the boiler.
Company Profile
Hua Dong Boiler Co., Ltd. is a high-tech enterprise specialized in
manufacturing boilers. Established in early 1985s, has two
manufacturing bases, this company covers 400,000 ㎡ with fixed
assets amounting to USD 110,000,000. The annual sales are from
100,000 to 120,000 tons. There are 1100 employees including 150
technicians and 600 coded welders. Hua Dong holds the manufacturing
licenses for Grade A boilers and Grade A1&A2 pressure vessels
issued by Chinese General Administration of Quality Supervision,
Inspection and Quarantine; also it holds the "S" and "U" "NB"
stamps issued by American Society of Mechanical Engineers;
meanwhile, this Company has passed the certification of ISO9001,
SO3834, EN12952 Quality Management System.
1. Fabrication area of 200,000 square meters
2. 150 Engineers
3. 600 Coded welders
4. 60 Licensed Inspectors(NDT Level-III instructors)
5. Class-A Licenses for Design and Manufacture Boiler
6. ISO 9001:2008 Quality System
7. ASME Certificate of Power Boilers
8. ASME 'S','U' and NB stamp authorization
