Gas Fired High Pressure Boiler Manifold Headers Application For Boiler System
Brand Name:HDB
Certification:SGS, ASME, ISO9001
Model Number:Boiler Manifold Headers
Minimum Order Quantity:1 set
Delivery Time:30~50 days
Payment Terms:L/C, T/T, Western Union
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Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China
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Product Details
Company Profile
Product Details
Gas Fired High Pressure Boiler Manifold Headers for Power Station
Product Introduction
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.
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.
Technical parameters of customer design boiler pressure parts header for CFB boiler.
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.
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. |
Functions
1. Improve and intensify combustion
The air after the heat exchanger enters the furnace, which accelerates the drying, ignition and combustion process of the fuel, ensures the stable combustion in the boiler and improves the combustion efficiency.
2. Enhance Heat Transfer
Because the combustion in the furnace has been improved and
strengthened, and the temperature of hot air entering the furnace
has been increased, the average temperature level in the furnace
has also been raised, so the radiation heat transfer in the furnace
can be strengthened.
3. Reducing the loss in the furnace, lowering the exhaust gas
temperature and improving the thermal efficiency of the boiler.
Because of the stable combustion in the furnace and the enhanced
radiation heat exchange, the chemical incomplete combustion loss
can be reduced. On the other hand, the air preheater uses the waste
heat of flue gas to further reduce the loss of exhaust gas, thus
improving the thermal efficiency of the boiler. According to
experience, when the air in the preheater rises by 1.5 C, the
exhaust gas temperature can be reduced by 1 C. After installing the
air preheater in the boiler flue, if the air waste heat can be
150-160 C, the exhaust gas temperature can be reduced by 110-120 C,
and the thermal efficiency of the boiler can be increased by
7%-7.5%. Fuel can be saved by 11%-12%.
4. Hot air can be used as fuel desiccant.
Hot air is an important desiccant and pulverized coal conveying
medium for grease powder system in power plant boilers.
Parameters
| Diameter(OD) | ¢76mm~¢914mm |
| Diameter(OD) | 23000mm |
| Temperature(℃) | 300~1500 |
Company Information
"Hua Dong" boilers include Utility Boiler, HRSG Boiler, coal-fired , oil(gas) -fired, coal-water-slurry-fired and garbage-fired steam/hot water boilers, organic heat carrier boilers, etc., and Boiler spare parts (Economizer, Finned tube, Header, Steam drum, Superheater, Water wall panel, Air preheater, Cyclone separator, etc., which are widely used in power generation, heat supply, chemical engineering, textile, food, paper, road building, plastic, rubber and wood working industries. "HD" boilers are honored as "Famous Production in Jiangsu Province", " Jiangsu High-Tech Product" and "Jiangsu Energy-Saving Product". "HD" brand is a "Famous Brand in Jiangsu Province".
Gas Fired High Pressure Boiler Manifold Headers Application For Boiler System
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