The short answer is that this is not available out of the box using V-ray. It is supported with some other renders, but not with V-ray at this time.
The slightly longer answer is that there are people who distribute single frames with vray, but it requires custom scripting. You might want to look into creating a custom job type (documented in the Developer Guide under the Help menu in Qube) or you can contact your reseller and ask about contracting PipelineFX to help you write the solution for your facility.
-Brian
