Spray nozzles are a conceptually simple device with a very important purpose in the petrochemical industry. While designs are rarely the same, they operate under the same concepts. A spray nozzle disperses contents that are under pressure in a more even manner than otherwise possible. Sometimes they are used for the purpose if increasing the surface area of a desired liquid substance.
The head of the spray nozzle consists of several flow or drip points that will determine how fine the mist that emerges will be. The more flow points there are, the finer the mist will be. However, flow points are not the only factor. The pressure put on the spray nozzle will greatly affect the stream of mist. Depending on the usage, the function may require a low flow rate or a high flow rate.
Uses in the petrochemical industry usually include injecting additives to the product, creating a fire protection and prevention system for the plant, and cooling systems. They can also be used for gas scrubbing, which is the process of removing any contaminants that the oil may have accumulated during the refinement process.
Materials used to make petrochemical spray nozzles are often alloyed with other metals to ensure that they provide the correct weight, performance, and durability required by the refinery. Common metal alloys used are brass and stainless steel.
Petrochemical spray nozzles are crucial to the refining process.