ABSTRACT
The term "process burners" is used for those burners that operate in heaters and furnaces in the refining, petrochemical, and chemical industries. Each of these industries has specific requirements, as outlined in Volume 1, Chapter 2. However, they all have the follow ing typical characteristics in common:
Process burners are all built in a similar manner (see Figure 1.1). In a natural-draft burner, the air enters through a noise suppression section whose prim ary function is to dampen the noise from the burner. The muffler is connected to a section that houses the air con trol, which serves to adjust the amount of air through the burner. This air control is typically a set of louvers or blades that can be rotated to partially or completely close the entrance into the plenum. The plenum, or wind box, is the section immediately before the burner tile. It serves to distribute air to the burner throat and dampen the noise from the firebox. The burner tile is a refractory piece that shapes and stabilizes the flame. One or more burner tips are used to inject the fuel into the air stream. They are connected to the fuel risers,
which, in turn, are connected to the fuel manifold. A small pilot burner is often used to provide an igni tion source for the main burner.
