₹ 1,25,000/Piece
Description-
Nitrogen has a number of effective uses in the oil and gas, onshore and offshore pipeline industries due to its unique properties. In hazardous situations and environments, dry and inert nitrogen creates a safe working environment for carrying out a number of maintenance works ahead of shutdown and start-up operations.
Guru Industries are the nitrogen specialists. We have one of the largest and most versatile fleets of mobile, self-contained nitrogen pumping and vaporization equipment available. We offer a number of reliable, flexible and cost-effective nitrogen solutions that will ensure safety and success for any ongoing project.
There are four common methods for adding inert gas: A) Vacuum purging, B) Pressure purging, C) Siphon purging, and D) Sweep-through purging
If the vessel to be inerted is designed to withstand vacuum pressure, an inert atmosphere can be created by repeatedly drawing a vacuum on the vessel and filling with inert gas. The three states of interest for the vacuum purging process are:
The purge gas is allowed to flow continuously through the vessel in sweep-through purging. The residual gas in the vessel can be displaced by the purge gas and/or mix with the purge gas. If the inlet and outlet ports for the purge gas are not placed properly, the purge gas may not displace and/or mix thoroughly with the residual gas in the vessel.
Displacement effects are generally neglected in sweep-through purging. Displacement is most effective if the flow within the vessel is laminar. Mixing, on the other hand, is most effective when there is a lot of turbulence in the flow within the vessel. When non-ideal mixing occurs, the purge gas is said to bypass or short-circuit (simply flow from the inlet to the outlet). Portions of the residual gas in the vessel (particularly that in corners or indentations in the vessel) will not be displaced from the vessel nor will the composition be diluted by the purge gas. For sweep-through purging to be effective, it is important for the purge gas to flow throughout the entire volume of the vessel (no dead volumes or eddies).
Pneumatic Testing-
Strength testing is a technique used in the oil and gas industry to prove the mechanical strength and integrity of pressure containing components in a system. The purpose of pneumatic strength testing is to verify that a system may be safely subjected to its maximum operating pressure by testing it beyond its designed pressure limit. The pneumatic strength test uses air, or an inert gas medium such as nitrogen, to pressurize the system to 110% of its designed pressure limit. A holding period is then applied for a fixed amount of time and the results monitored to determine the safety and integrity of the system.
Benefits of pneumatic testing
Accurate test results mean confidence in the integrity of the system No need to dry or clean the system after testing Will not lead to contamination of pipelines or systems Certified test with full records and charts provided
In circumstances when hydrostatic testing is not possible, for instance, the weight of hydro test water is too high for the pipe support system (e.g. gas service piping) and when the introduction of water to the piping may be detrimental to the process (e.g. catalyst or reactor contamination, cryogenic service system), then the components or system can be tested with nitrogen.
