| Sign In | Join Free | My entremaqueros.com |
|
| Sign In | Join Free | My entremaqueros.com |
|
| Categories | Boiler Manifold Headers |
|---|---|
| Place of Origin: | Zhangjiagang,China |
| Brand Name: | HD Boiler |
| Certification: | ISO9001,ASME,,EN,CE |
| Model Number: | Manifold water wall header |
| MOQ: | 3 |
| Price: | $1,200-1,500 |
| Type: | Natural Circulation |
| Structure: | fire tube and water tube |
| Pressure: | Low / High Pressure |
| Steam production: | Max. 20t/h |
| Style: | Horizontal |
| Fuel: | Coal / Gas / Coal-fired / Water Heat |
| Output: | Hot Water / Steam |
| Surface Treatment: | Painted |
| Diameter (OD): | ∅76mm~∅914mm |
| Max Length: | 23000mm |
| Temperature Range: | 300~1500℃ |
| Material Options: | 20G, SA-106B, SA-106C, 15CrMoG, 12Cr1MoVG, SA-335P12, SA335-P22, SA-335P91, SA-335P122, SA-335P92 |
| Header Types: | water wall header, superheater header, economizer header |
| Construction Type: | end cover type or necking down type |
| Operation Mode: | Steam distribution with bypass and drain valves |
| Company Info. |
| Zhangjiagang HuaDong Boiler Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
htp boilers
Condensate pipe htp main boilers
Product Description
Steam distribution headers are fabricated out of carbon steel or alloy steel seamless tubes. Customised 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.
Operation
In bringing a boiler on the line with other boilers on a header system,certain precautionss are necessary to avoid water hammer and excessive temperature gradients in the piping.Adequate drainage and warming of the piping will eliminate the risk of water hammer.The judicious use of bypass valves around main header valves will avoid steep temperature gradients.Header drains should be operated.The steam line from the boiler to the header should be brought up to temperature by operationg bypass and drain valves.When up to temperature and line pressure,the header valve may be opened wide and the bypass closed.
Technical parameters
| Diameter(OD) | ∅76mm~∅914mm |
| Length(Max) | 23000mm |
| Temperature(℃) | 300~1500 |
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.
1. Carbon steel:20G,SA-106B,SA-106C,etc.
2. Low-alloy thermal resistant steel:15CrMoG,12Cr1MoVG,SA-335P12,SA335-P22,etc.
3. Middle-alloy thermal resistant steel:SA-335P91,etc.
4. Special material(ultra-supercritical):SA-335P122,SA-335P92,etc.
The boiler headers have water wall header,superheater header,economizer header and so on. It acts action of gathering, mixing and redistribution in boiler systems. In structure, they include end cover hinders or necking hinders.
|
Typical Industrial Boiler Manifold Headers SGS Certification For Power Plant
Stainless Steel Thermal Oil Boiler Header For Industrial High Pressure Boiler
Boiler Steam Economizer Low Loss Headers Collector , Power Plant Distributor Pipes Boiler Parts
Carbon Steel Boiler Header For Superheater & Reheater Of Utility Boiler
ASME Certification CFB Boiler Manifold Headers Pressure Parts For Utility Boiler
Alloy Steel Boiler Manifold Header For Coal Fired Boiler Economizer And Water Wall Panel
ASME Standard CS / SS Seamless Boiler Header Manifold
Steel Electric Condensing Gas Boiler Header , Power Plant CFB Boiler Spare Part
Medium Alloy Boiler Manifold Header For Coal - Fired CFB Boiler Water Wall Panel
Carbon Steel SA106 ASME Manifold Header For Power Station
