Rotary Screw Vapor Recovery Package - Electric Driven

Rotary Gas Screw Electric-Powered Compressor with Vapor Recovery (10HP-400HP)

Standard Features

  • Field Proven LeROI or Gardner Denver Oil-Flooded rotary gas screw compressors
  • Class 1 Division 2 B,C & D package designs
  • Twin Stars control programming seamlessly integrated with the VFD control panel using ComAp or IDEC plc’s
  • Electric Motor driven, TEFC, marked for HAZ. LOC. area
  • ASME Stamped vessels fitted with relief valves sized in accordance with API RP520 II
  • Electric motor driven Oil and Gas cooler combination, marked for HAZ. LOC. area
  • Skid with 110% environmental containment
  • Engine drive units are also available.

Instrumentation And Control

  • Operator Approved HMI screen for easy everyday operation
  • Seamless integration of Twin Stars control logic and standard VFD panel
  • Remote operation, communication, and monitoring via Modbus RTU – RS232/RS485, or TCP Ethernet
  • Pressure Transmitters for Suction, Discharge, Oil and Coalescent Filter Differential Pressure monitoring
  • RTDT for Discharge Temperature monitoring
  • Low Compressor Oil Level and High Scrubber Level float switches

NOTE: Actual instrument panel delivered depends on the configuration.

Components

Below is a possible configuration – your requirements may vary.

SKID

The standard skid is a rigid, welded steel fabrication design filled with concrete to create a solid, vibration free foundation. This design includes environmental containment for 110% of oil volume present and drain ports all four corners.

SUCTION SCRUBBER

The suction scrubber is an ASME rated vessel for 150 PSIG at -20 to 200F. The scrubber includes a Taylor 81 series relief valve, A.C.S. co-knit demister pad, FW Murphy high liquid level switch, 2” bullseye sight glass, FW Murphy control level switch, Condensate Pump with Class 1 Div. 2 Marked motor, internal baffling for liquid slugs, and ports for differential pressure.

DRIVE

  • Premium efficiency Class 1 Div. 2, 460V, 60 hertz, SF=1.15, Foot-mounted, VFD rated 101 CT motors.
  • Cummins, Caterpillar, or GM industrial engines are typically utilized on engine driven units.

COMPRESSOR

  • Packages utilize either a LeROI or Gardner Denver screw compressor with 350 PSIG MAWP.
  • Capacity control is performed by a combination of variable speed control by our VFD and set point control of an auto-bypass.

LUBE SYSTEM

The lube oil system comes standard with a mechanical thermostat, oil filter assembly, inter-connecting tubing, and a minimum pressure valve mounted on the gas/oil separator to provide oil pressure for proper oil circulation.

GAS / OIL SEPARATOR

The gas/oil separator is ASME rated for 350 PSIG, -20 to 300F and contains a top hat style element rated for 2 ppm (1.7 ounce per 1.0 MMSCFD gas flow) or less oil carryover when new.

OIL / GAS COOLER

The standard unit uses a free standing oil cooler and gas cooler with 3 phase TEFC Class 1 Div. 2 marked motor.