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Education 107

1.      What is boiler ?

Ans: A device which is used for generating steam is called boiler. It is also called steam generator.

a.       The generated steam is supplied to steam engines or turbines for power generation.

b.      The generated steam may also be used for process work in cotton mills, sugar factories etc.

and for heating purposes.

2. What is the Boiler Mountings and Accessories?

Ans: Boiler Mountings: These are the fittings which are mounted on the boiler for its proper functioning.

Some of the important boiler mountings are as follows:

1.      Water level indicator

2.      Pressure gauge

3.      Safety valve

a)      Lever safety valve

b)      Dead weight safety valve

c)      High steam and low water safety valve

d)      Spring loaded safety valve

4.      Stop valve

5.      Blow off cock

6.       Feed check valve

7.       Fusible plug


Boiler Accessories: These are the device which are used as integral parts of a boiler and help in running efficiency.

Some of the important boiler accessories are as follows:

1.      Feed water pump

2.      Super heater

3.      Economizer

4.      Air-preheater

5.      Draft

a)      Induced draft fan

b)      Forced draft fan

6.      Injector

7.      Steam trap

8.      Steam separator

9.      Soot blowers

10.  Dust collector

3. What is Blow off cock?

Ans: Blow off cock: A device used to empty the boiler whenever required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler, is called blow off cock.

Topics: Steam System Schematic: a general schematic illustration of the four principal areas


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