Systems and Packages

Engineering, Procurement and Construction

CST: RANGE OF ACTIVITIES

Packaged Systems are self-sufficient products fully engineered and preassembled that can be delivered on site requiring just to be positioned and connected to the rest of the plant facilitating its construction. Nowadays, more and more compressors are assembled on a skid with all their ancillary equipment. In the past, this could only be done for portable compression units typically for natural gas or for certain off-shore duties in upstream applications.

Depending on the type of customer’s need, CST can make just the Engineering Design or also the Procurement and Construction of the following type of systems:
•Complete compression packages
•Lube oil and cooling water consoles
•Leak gas recovery and buffering systems for emission control

COMPRESSION PACKAGES

A Compression Package is a complete stand-alone system, often critical for the process in which it is installed. Design of a package must be very accurate. A multidisciplinary knowledge is required to meet the target reliability in operation. CST has extensive experience in designing compression packages both for reciprocating and centrifugal compressors.

CST capabilities include the following:

CST can design compression packages in accordance with the following codes, specifications, and standards:

API Std:
•API-618 / API-674 / API 11P for Reciprocating Compressors and Packages
•API-610 / API-676 for Centrifugal and Positive Displacement PumpsAPI-614 for Lubrication Systems
•API-617 / API-619 for Axial, Centrifugal and Rotary-Type Positive-Displacement Compressors

NACE, for corrosive environment installations
ASME:
•Section VIII for Pressure Vessels
•3 for Process Piping
•B16 for Valves, fittings and gaskets

TEMA, for tubular exchangers

Machinery Directive Compliance, including PED and ATEX assessment certifications

LUBE OIL CONSOLES

CST can design and produce Lube Oil and Cooling water consoles for reciprocating and centrifugal compressors in accordance with API and ISO standards.Other applicable design standards are: API 614 (ISO 10438) , API 618 (ISO 13707), API610, API617, API692, API660, API520, API526, API521, ISA 5.1 , ANSI , ASME , PED, TEMA, IEC, ATEX , NEMA, TU-CR, CE, EAC, CSA, UL, FM.

LEAK GAS RECOVERY AND BUFFERING SYSTEMS

Gas emissions, particularly those of methane, are very critical for the ambient and therefore must be controlled and reduced as much as possible.CST has extensive experience in developing and producing systems to measure, gather and recover emissions due to leak gas from compressor seals of reciprocating and centrifugal compressors. CST designs and produces also Nitrogen purging/buffering systems to control gas leakage.

SOME EXAMPLES ABOUT CST SYSTEMS AND PACKAGE ACTIVITY

COMPRESSOR SKID MODE SHAPE
Every compressor package designed by CST is submitted to an accurate dynamic study to avoid any resonance between excitations and natural frequencies.
PIPING PULSATION ANALYSIS
Compressor piping system acoustic study to avoid any resonance between excitations and acoustic natural frequencies
NITROGEN CENTRIFUGAL COMPRESSOR PACKAGE
CST activity on Centrifugal Compressors spans from design of the bare compressor to that of the complete compression package.
INTEGRALLY GEARED CENTRIFUGAL COMPRESSOR
CST design capability covers large integrally geared centrifugal compressors for ASU Plant
COMPRESSOR TRAIN TORSIONAL ANALYSIS
Compression trains torsional analysis to avoid dangerous mechanical resonances with the relevant excitations
ROTOR-DYNAMIC RESPONSE
All rotating machinery designed by CST is supported by a deep rotor dynamic analysis to assess the soundness of the dynamic behavior
BASEPLATE ANALYSIS
Alignment, safe lifting and vibration free operation of compressor package baseplate by deep FEM analysis
FOUNDATION BLOCK DESIGN
Foundation block for rotating and reciprocationg machinery. New units or maintenance services
NITROGEN PURGING/BUFFERING
CST engineers and manufactures purging and buffering systems to be supplied as accessories of main rotating equipment
EMISSION CONTROL
CST developed special environment friend systems to recover methane emissions from a pipeline compression stations.

For information on CST activities, email to:

FILIPPO CINELLI at filippo.cinelli@cstfirenze.com

LUCIA MATTESINI at lucia.mattesini@cstfirenze.com

GIULIA TOSI at giulia.tosi@cstfirenze.com