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| Categories | Superheater And Reheater |
|---|---|
| Brand Name: | HD BOILER |
| Model Number: | Superheater and Reheater |
| Certification: | ISO9001 , SGS , TUV , ASME , EN |
| Place of Origin: | ISO9001 , SGS , TUV , ASME , EN |
| MOQ: | 1 set / 10tons |
| Price: | Negotiable |
| Payment Terms: | L/C, T/T, Western Union |
| Supply Ability: | 1500 Tons / Month |
| Delivery Time: | 50 ~ 100 Days |
| Packaging Details: | Seaworthy packing |
| Material: | SA213-TP321H |
| Length: | 8000mm |
| Specification: | OD=38,Thickness=6mm |
| PWHT: | Solution treatment |
| Ovality: | Less than 15% |
| Thickness reduce: | Less than 15% |
| Company Info. |
| Zhangjiagang HuaDong Boiler Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
Stainless superheater and reheater 100% solid solution treatment high temperature resitance
Superheater & Reheater Coil
Description
| 1 | The temperature of steam in boilers depends on the pressure but whilst it is in contact with the water it never exceeds the boiling point for that pressure. |
| 2 | This is referred to as the "saturated steam" temperature. So long as the pressure and temperature remain the same the steam will not contain water and is referred to as "dry saturated steam". |
| 3 | As the steam travels from the boiler to the engine,however,despite insulation of the pipework etc,it will experience a drop in temperature and condensation will immediately result. |
| 4 | Condensation will also occur when the steam comes into contact with the cooler cylinder walls and,as energy is extracted from the steam in the cylinders by performing work on the piston, a further drop in temperature will occor resulting in further condensation. |
| 5 | Apart from the resulting loss of efficiency,the presence of incompressible liquid water in the cylinder is potentially disastrous. |
| 6 | If it were trapped between the piston and the cylinder end-cap it could result in the end being blown off. |
Advantages & Disadvantages
Pendant-type 1.Firm structural support 1. Flow blockage by condensed steam 2. Needs slow restart to purge the water that accumulates in the bottom. supported from above |
Inverted-type 1.Proper drainage of the condensed steam 1. Lack the structural rigidity, especially in high speed gas flow Supported from below |
Horizontal -type 1. Proper drainage 2. Good structural rigidity. |
They do not view the flam directly so they are mainly from the
convective type Usually supported in the vertical gas ducts
parallel to the main furnace.
Advance technology
| 1 | HDB has extensive experience using their remaining useful life analysis system to predict the lifespan of tubes. |
| 2 | The system measures the oxide and wall thickness of the tube during an on-site non-destructive test and this is used to calculate the remaining useful life. |
| 3 | HDB developed the oxide measuring technology in 1991 and it is now used as the standard throughout the world. |
Details
| 1 | Material composition | Carbon steel, alloy steel or heat-resistant steel, collection boxes and other supporting material. Tubes are customized types of specifications. |
| 2 | Design pattern | Vertical or horizontal layout. |
| 3 | Advantages | Beautiful appearance, size, accuracy, first-class bending and welding technology, first-class detection equipment. |
Product Function
1.The function of the superheater in the thermal power plant is to remove the last traces of moisture ( 1 to 2%) from the saturated steam coming out of boiler and to increase its temperature sufficiently above saturation temperature.
2.The super-heating heating raises overall overall cycle efficiency efficiency as well as avoids too much condensation in the last stages of the turbine which avoids the blade erosion.
3.The heat of combustion gases from furnace is utilized for the removal of moisture from steam and to superheat the steam.
4.Super-heaters usually have several tube circuits in parallel with one or more return bends, connected between headers.
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