Blowdown With Recycle Sequence
From EMIT Controls
Revision as of 17:34, 21 November 2023 by Thomas Peterson (talk | contribs) (Created page with "==Overview== The Dynamic Control panels have three options related to relieving pressure on a unit: #Blowdown vent, with a simple vent, usually to atmosphere or combuster #Blowdown to header with recycle, where suction and recycle valves are used to relieve to header #Off skid bypass, where an off-skid on/off valve is used to relieve pressure to the header This article covers option (2). ==Setting Up Valves== Before enabling this option, the valve(s) must be configu...")
Overview
The Dynamic Control panels have three options related to relieving pressure on a unit:
- Blowdown vent, with a simple vent, usually to atmosphere or combuster
- Blowdown to header with recycle, where suction and recycle valves are used to relieve to header
- Off skid bypass, where an off-skid on/off valve is used to relieve pressure to the header
This article covers option (2).
Setting Up Valves
Before enabling this option, the valve(s) must be configured.
- The recycle valve can be set up as a normal PID loop named “RECYCLE” that runs off of one input (suction or discharge), or it can use the built-in recycle loop that runs off both suction and discharge. The second option is preferred since it is cleaner. See Dual_Recycle_Setup
- The suction valve is set up as a normal PID loop named “SUCTION”
Sequence Setup
The blowdown to header with recycle can be enabled at Settings – Brain – “Outputs Setup” – “Blowdown Settings”. The second tab covers the options for this function, and a screenshot is shown below.
