Low Temperature Superheater Coil Tube Heat Exchanger Boiler Spare Parts For Coal - Fired Boilers
Brand Name:HDB
Certification:ISO, ASME
Model Number:Anti Wear Superheater
Minimum Order Quantity:1Set
Delivery Time:45 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
Low Temperature Superheater Coil Tube Heat Exchanger Boiler Spare Parts For Coal - Fired Boilers
Superheater&Reheater, Custom Component For Boiler
In general, steam heated in high pressure superheater is named superheated vapour, the steam heated by reheater is called reheated vapour. The parameter of reheated steam is relating with economy of thermal circulation. Generally, the pressure of reheated steam is about one fifth of that of superheated steam, and the temperature of the former is almost the same as that of the latter. For example, in our nation for boiler with 125MW, 400t/h, the parmameter for superheated steam is 133.7Mpa and 555 degrees; the inlet and outlet pressure of reheated steam is 2.5/2.35MPa, their temperature is 555 degrees, too.
For boilers with 200MW, 670t/h, the parameter of superheated steam
is 13.7MPa, 540 degrees; the inlet and outlet pressures are
2.7/2.5Mpa, and the temperature is also 540 degrees. For
subcritical pressure control circulation boilers with 300MW, 600MW,
superheated steam parameter is 18.27Mpa, 540 degrees; the inlet and
outlet pressures are 3.83/3.63MPa, the temperature is also 540
dgrees. Application of steam reheating system can increase the
thermal economy for power stations by 4-5%. In our country, units
with capacity over 125MW all apply one time middle reheating
system, and overseas, two times middle reheating systems are
applied for some units with higher parameters.
Product Function&Features
HDB thermal efficient steam super heater for coal fired boilers
Specification:
Super heaters are the one of the most important boiler sapre parts
that improves the thermal efficiency. High temperature steam boiler
radiant super heater is usually applied in high pressure power
plant boiler.
In the boiler, the role of super heater is to heat the saturated
steam to a certain temperature of superheated steam to increase
power plant efficiency. Repeater essentially further improves the
thermal power plant cycle efficiency.
Steam Super heater Coils: Super heater coils are used in a boiler
to generate saturated steam. The super heater coils are specially
used in Boilers of Power plant. We manufacture Super heater coils
in various grades of Alloy steel and in stain less steel tubes with
or without support & Header as per customer's drawing.
Changes in boiler operating conditions, such as load level, fuel
change, combustion condition change, etc., all have an impact on
superheater outlet steam temperature, so in power station boilers
there are means to adjust boiler outlet steam temperature to make
it stable at the specified value.Commonly used means are:
(1) with water jet or surface type temperature reducer directly
adjust the steam temperature;
(2) with the swing burner to change the temperature of the furnace
outlet smoke;
(3) with smoke recirculation adjustment superheater heat
absorption.When the boiler load increases, the temperature rise
value of the inlet and outlet steam of the flow superheater
increases, while the temperature rise value of the radiant
superheater decreases.
If the convective superheater, radiant superheater and semi-radiant
superheater are properly combined and configured, the outlet steam
temperature can change less when the load and combustion conditions
change.The heat absorption and steam flow rate of the parallel
pipes in the superheater stack will be different in operation.In
order to avoid excessive temperature in individual pipes, the
superheater is divided into several pipe groups in large boilers.
Steam of each pipe group is mixed with a collecting box outside the
furnace and the steam guide pipe is used to make each pipe group
transposition, so as to avoid excessive temperature difference
between each pipe.
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. |
Design structure
1. heating saturated steam, temperature up to 900 degree C.
2. high efficiency, >90%.
3. high speed heating.
4. design with stainless steel.
5. long design service life, 15 years.
Send us required technical data, such as steam capacity, presure,
required temperature etc. We will design accordingly.
HD Boiler offers a best in class facility
Huadong Boiler has been specializing in producing custom boiler
components for 34 years since 1985. Our boiler components have been
used in industrial steam generators, steam boilers, hot water
boilers, electric steam boilers, steam pressure reducing
stations,etc
Low Temperature Superheater Coil Tube Heat Exchanger Boiler Spare Parts For Coal - Fired Boilers
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