Rotary Screw Vapor Recovery Package - Engine Driven
Rotary Gas Screw Gas Engine-Powered Compressor with Vapor Recovery (37HP-420HP)
Standard Features
- Field Proven LeROI or Gardner Denver Oil-Flooded rotary gas screw compressors
- Cummins, Caterpillar, and GM Industrial natural gas engines
- Murphy EICS and PSI engines emissions controls systems
- ASME Stamped vessels fitted with relief valves sized in accordance with API RP520 II
- Oil, Gas, and Coolant Cooler packages with engine driven cooler fan
- Skid with 110% environmental containment, lifting eyes and fork slots
- Electric drive units are available.
Instrumentation And Control
- Operator Approved HMI screen for easy everyday operation
- Seamless integration of Twin Stars control logic by ComAp or LeRoi plc’s
- 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
- Exterior panel lights/displays for quick identification of equipment status
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. This design includes environmental containment for 110% of oil volume present, drain ports on all four corners, and mounting holes.
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. Internal baffling for liquid slugs, and ports for differential pressure. Blow case design for liquid dumping with switching valve or high pressure dumping configurations.
COMPRESSOR
Packages use LeRoi Gear driven compressors or Gardner Denver direct drive compressors with 350 PSIG MAWP. Capacity control performed via PLC by variable rpm, throttling of the intake valve, and versatrol capacity control poppets.
LUBE SYSTEM
The lube oil system comes standard with a mechanical thermostat, oil filter assembly, interconnecting 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 250 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 rated at 350 PSIG at 250F using a belt driven fan from the engine.