Turbomachinery Package Specification

Taurus 60 Compressor Set and Mechanical Drive

 

 

•Purchaser piping and instrumentation diagram including suction and recycle pipe size and schedule

•Anti-surge control (recycle) valve and specification sheet, unless included in Solar's scope

•Suction and discharge gas temperature signal (100-ohm platinum resistance temperature devices (RTDs) preferred)

Typical system scope includes the following:

•Engineering to determine the optimum control algorithms

•Control software programmed and tested for the selected gas compressor staging

•Engineering to specify the anti-surge control valve and accessories, including valve performance evaluation over the gas compressor performance map at varying valve positions

•Engineering to specify the flow meter type and size

•Automatic override of manual control mode

•Evaluation of user piping and instrumentation diagram

•Documentation, including all surge control calculations and program constants

•Gas compressor flow versus differential pressure control with suction pressure and temperature compensation

•Speed setpoint decoupling

•Surge detection with step valve opening

•On-screen, real-time graphic displays

•On-screen, real-time control parameter setting

•All surge control parameters are available for remote monitoring via serial link

11.1.5Anti-Surge Recycle Valve

When included in Solar’s scope of supply, the anti-surge recycle valve is supplied as a complete and functionally tested assembly, shipped separately for field installation. The assembly includes the valve and the following accessories and features:

•Spring-return, diaphragm-type, pneumatic actuator

•Position transmitter with valve fully open and fully close relay outputs and 4-to- 20 mA proportional to percentage closed

•Pressure regulator

•3-way 24-VDC solenoid valve

•Electropneumatic valve positioner

•½-in. NPT actuator pressure port

•Carbon steel body per ASTM A352

•Interconnecting 316L stainless steel tubing and compression-type fittings

•Temperature Limits:

−Process gas: - 6.7o to 218°C (20 to 425°F)

−Ambient: -28.9oto 60°C (-20 to 140°F)

The assembly requires clean, dry regulated air or natural gas, 552 to 862 kPag (80 to 125 psig), -28.9oto 60°C (-20oto 140°F), dew point -40°C (-40°F)

Successful operation of the anti-surge control system is dependent on correct valve selection. The following anti-surge recycle valve is selected based on the application data

© 2009 Solar Turbines Incorporated. All rights reserved.

TPS60CSMD/309

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