88.9mm Heat Exchanger Module Boiler Header For Liquid Ammonia To Urea
Brand Name:HDB
Certification:ISO9001 , SGS , TUV , ASME , EN
Model Number:Heat Exchanger Module
Minimum Order Quantity:1 set
Delivery Time:30 working days
Payment Terms:L/C, T/T, , Western Union
Contact Now
Add to Cart
Verified Supplier
Address:
Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China
Supplier`s last login times:
within 1 hours
Product Details
Company Profile
Product Details
88.9mm Heat Exchanger Module Boiler Header For Liquid Ammonia To Urea
Details
The header is a pipe fitting for mixing boiler working medium and
ensuring uniform heating of working medium.Industrial boiler furnace wall is usually composed of rows and rows
of tubes (water wall) together, but boiler huge volume, complicated
structure, cannot guarantee that all the working medium in the pipe
of heat absorption capacity is the same, different parts of heat
absorption differs a lot, install header can let each pipe working
medium inside converge here, the redistribution to the next level
in the tube, so that we can reduce the thermal deviation, make the
working medium heat, cooling flow, boiler, the boiler thermal
efficiency are optimized to improve;In addition, the size, number and arrangement of the tubes in the
upper, middle and lower parts of the boiler are different, and the
header is responsible for connecting the sections to ensure the
smooth circulation of the working medium.
The pressures and temperatures that headers have to withstand
depend on the component to which they are connected. A header
connected to an economizer or to water wall panels is subject to
less severe requirements on the material than a header connected to
superheaters or reheaters.
Depending on the temperature and pressure of headers, Vallourec
supplies tubes in carbon steel to high-alloy ferritic steels such
as T/P91 or T/P92, with sizes ranging from 88.9 mm to 406.4 mm.
Features
The pressures and temperatures that headers have to withstand
depend on the component to which they are connected. A header
connected to an economizer or to water wall panels is subject to
less severe requirements on the material than a header connected to
superheaters or reheaters.
Depending on the temperature and pressure of headers, Vallourec
supplies tubes in carbon steel to high-alloy ferritic steels such
as T/P91 or T/P92, with sizes ranging from 88.9 mm to 406.4 mm.
Product Description
Headers collect and distribute steam or water from or to a series
of smaller pipes or conduits. They are made of carbon or ferritic
steel, generally of the same grade as the piping systems. Unlike
piping systems which are usually butt welded and bent, headers are
straight.
The pressures and temperatures that headers have to withstand
depend on the component to which they are connected. A header
connected to an economizer or to water wall panels is subject to
less severe requirements on the material than a header connected to
superheaters or reheaters.
Depending on the temperature and pressure of headers, Vallourec
supplies tubes in carbon steel to high-alloy ferritic steels such
as T/P91 or T/P92, with sizes ranging from 88.9 mm to 406.4 mm.
Application
The steam boiler pressure part header with large diameter
longitudinal welded pipe have water wall header, superheater
header, economizer header and so on, it acts as collection,
mixture, re-distributing working medium, as the structure, it can
be classified as the end cover type( end enclosure) and necking
down type.
Technical parameters of customer design boiler pressure parts
header for CFB boiler
The headers of boilers include water-cooling hinders of boilers
proper, economizer hinders, superheater hinders, etc. They function
for gathering, mixing and redistribution in boiler systems. In
structure, they include end cover hinders or necking hinders.
| 1 | Headers form an important part of all types of boilers. |
| 2 | Steam from the generating tubes is collected in headers which are therefore always under pressure. |
| 3 | This pressure may vary from 300 psi to 2000 psi. Since headers are always under pressure, the utmost care is taken by us while fabricating them. |
| 4 | Depending on the generating capacity of the boiler the header sizes fabricated by us vary from 100 mm to 600 mm NB. The stubs of various sizes are very carefully welded to the main body of the header to provide the desired openings from the header. |
Classification
Enamelled Corrugated Sheet Baskets are a compact arrangement of
profiled metal sheets placed in the Air Preheater rotor in two or
more layers and plays the most important role in the process of
heat recovery.
The bottom layer, or the cold end layer, is where the air enters
and the flue gases are discharged, and is therefore, subjected to
severe corrosion due to acid dew point. The Material of
Construction and the Profile design of the Heating Elements depends
on the operating conditions, quality and type of fuel, etc.
Parameters
Diameter(OD) | ¢76mm~¢914mm |
Diameter(OD) | 23000mm |
Temperature(℃) | 300~1500 |
Application
Steam distribution headers are fabricated out of carbon steel or
alloy steel seamless tubes. Customized or tailor made items are
offered. Headers, after fabrication, are stress relieved to make
the Steam distribution headers free from stresses. They are big
pipe headers that transfer water from the downcomers to the risers
through a combustion zone where the water gets partially heated to
steam from the heat of fuel combustion.
Factory Workshop
88.9mm Heat Exchanger Module Boiler Header For Liquid Ammonia To Urea
Inquiry Cart
0