Compressed air can be utilized in a wide variety of applications within the Energy and Petrochemical Industries. Applications include air blowing for the cleaning and commissioning of new facilities or build systems, drying pipelines and systems following hydro tests, pressure and leak testing, and heating and cooling of systems.
Compressed air is a very effective method of removing significant deposits of dirt, welding slag and construction debris from the process piping systems. Using compressed air, we are able to exceed operational conditions in the system and remove any debris or deposits that can be dislodged during the operation of your process. This is accomplished with using either decompression or continuous air blowing or a combination of both using our specialized equipment and engineering.
Decompression air blowing involves pressurizing the system or an additional volume to a predetermined and engineered pressure so that operational forces during the process will be exceeded. Once the predetermined pressure has been reached, the pressurized portion of the system is decompressed into a specialized collection and noise reducing receiver. For continuous air blowing, the system is subjected to a continuous stream of air at a predetermined and engineered flow rate until the client’s desired cleanliness specifications have been met.
Compressed air can be used for system dehydrating and dewatering. Following completion of a successful hydro test, pipelines are de-watered and prepared for use. Gas and finished product pipelines must be cleaned and dried prior to the introduction of the product to be transported. Compressor spreads can provide large volumes of -80 C Dew point air, combined with foam pigs and brush pigs can clean and dry pipelines successfully to a very high standard. This service can be used in conjunction with air blowing.
Compressed air can be used to provide pneumatic testing on newly constructed or modified systems. FourQuest Energy also provides stored energy calculations for pneumatic tests. For example when hydrogen reformers must be tested prior to operation stored energy calculations can be used to determine safe distance limits during the test.
Pneumatic testing is utilized when a hydro-test fluid may place too much weight on the piping or damage a coating. Another application of pneumatic testing is for boiler tubes that must remain dry prior to operation where it would be impossible to drain any liquid after a conventional hydro-test.
Compressed air can also be used for checking the system for integrity by confirming the absence of leaks and passing valves. Integrity testing can be done in conjunction with air blowing. During the pressurization of the system for decompression blowing, the system can be observed for leaks or valve passing.
System Heating and Cooling:Compressed air can be used for system heating and cooling. For heating, air heated during the compression process is used to heat the system to temperatures up to 100°C. By heating the system, the system can be tested for expansion ability and determine any faults so that they may be repaired prior to operation of the system. Compressed air heating can also be used for preheating the system or vessels prior to starting the system for operation.
For cooling using compressed air, cool air can be introduced to the system or a hot process vessel at a predetermined flow rate to cool down the system or vessel as the client requires.
