Differences between ORV, IFV, SCV, and conventional heat exchangers in LNG gasification
Thread Content
Guys, I’ve always had a question: what are the differences between ORVs, IFVs, SCVs, and conventional heat exchangers in LNG gasification? Why are ORVs chosen for basically all vaporization stations? Why can’t ordinary heat exchangers or evaporators be used here? ? ? ?
ORVs (open-type vaporizers) are widely used as LNG vaporizers that utilize water as a heat source, especially when seawater is used as the heat source. Since LNG receiving stations are located near the sea, where the water temperature remains relatively stable and has a high heat capacity, they represent an inexhaustible source of heat. The maximum natural gas flow rate can reach 180 tons per hour. The vaporizer can operate within a load range of 0% to 100%, and the amount of vaporization can be remotely adjusted according to changing demands.
The mainstream option is good! When building a receiving station, the consideration is not just profit; a significant factor is ensuring local supply and managing peak loads. Therefore, during periods of high demand for natural gas or in extremely cold winters, using seawater for heat exchange in the gasification process often fails to meet the conditions required for transporting the gas. So at this point, you must use an IFV or even an SCV, relying on heat exchange through intermediate media reactions or using fuel gas for heating and gasification in order to meet the requirements for supply continuity. I’m a new LNG trainee who has just started working; this is just my basic understanding, so I hope the more experienced colleagues can offer their guidance. Thank you