This inlet device is ideal for use in both two and three phase separator vessels. The unit gives optimum initial knock out of liquids, good distribution of the incoming gas and effectively absorbs the incoming momentum of fluids.
To improve entry of fluids into a horizontal crude oil separator Aker Solutions have developed a new vane type inlet device (VTID). The new VTID comprises two sets of distribution vanes: a top section positioned under the inlet nozzle and a lower section positioned midway between the top section and the normal liquid level in the separator. The top section is designed to distribute the incoming fluids across the full width of the separator and includes a number of profiled vanes which direct the incoming fluids across the lower section of the device. The vanes are designed to minimise shearing of the inlet fluids and to achieve even distribution across the lower vanes.
The lower vanes are designed to redistribute the fluids across the surface of the liquid phase and minimise impact of inlet fluids onto the liquid surface. The effect of this is to reduce generation of foam and to achieve even flow of liquids along the separator.
CFD was used to check flow patterns through the device and thus ensure minimum impact of inlet fluids onto the liquid surface.
Between the upper and lower sets of vanes is a space where gas is removed from the inlet stream through openings in the support framework.
The VTID is provided in modular sections for easy installation in the vessel. The device can be used for nozzle sizes up to 40”NB. The device is very robust and is designed for severe slugging service.