HRSG Boiler Superheater and Reheater Desuperheater system ASME
Standard Chinese Manufacturer
Superheating system
- Superheaters in large capacity boilers are of both convective and
radiant type.
- The convective type superheaters are placed in the second pass of
the boiler, and these are also called low temperature super
heaters. Generally about a 40 to 60 degree centigrade temperature
pick up takes place on the steam side in this superheater.
- The steam from this moves to a radiant type superheater called the
panel or platen superheater, and about a 70 to 100 degree
centigrade pickup take place there.
- This is followed by the final superheater, and the remaining
required temperature is picked up here. One has to understand that
the designer can vary the pickup pattern depending upon his way of
practice or requirement.
- But in all the methods adopted, the final temperature must be
within a narrow range generally plus / minus five degrees
centigrade. The superheaters are so surfaced that, for the design
fuel of the boiler, there will not be any desuperheating
requirement.
Desuperheating system
- Three major systems are adopted the world over: the injection type,
the flue gas flow diverting type, and the burner tilt. The last two
are adopted for reheater steam temperature control. The first one
is adopted for superheater temperature control.
- It also used in reheaters during emergencies when there is a need
to quench the temperature even after reaching the maximum of
control on the normal system adopted.
- The material selection for the superheater before the injection
will be greatly influenced by the quantity of injection.
Steam Superheater in Boiler Manufacturer in DHB
1. Our boiler superheaters come with adequate safety features to
prolong the life of a superheater as well as your equipment where
the steam is used.
2. The safety valve is installed in a super-heater to prevent
operating pressure to exceed the design pressure of a superheater
in the boiler.
3. We manufacture steam superheaters that suit different type of
fuels such as:
- Solid Fuels (Wood, Rice Husk, Bagasse, Coal)
- Liquid and Gas fuels (Light and Heavy Oils, Natural Gas)
- Electrical operated steam boiler superheaters.
Benefits of Superheaters in Boilers
1 | Increase in efficiency of the steam power plant |
2 | Minimized erosion of turbine blade |
3 | Less steam consumption |
4 | Reduction of condensation loss in the boiler steam pipes |
5 | Increases the temperature of saturated steam by removing entrained
water particles from turbines steam |
Packing Picture