RCX- Reciprocating Compressor Analyzer

SINT Technology s.r.l. Tel: +39.055.8826302 · Fax: +39.055.8826303 · [email protected] · www.sintechnology.com

Reciprocating compressors are often some of the most critical systems at a production facility. Industrial facilities can expect

widely varying lifecycle costs and reliability from their own installations due to many factors like adequacy of maintenance

practices and operational factors. Thanks to the SINT Technology experience in turbomachinery performance evaluation and

automatic fault detection the RCX-Reciprocating Compressor Analyzer is now available. RCX is actually the only portable sy-

stem for reciprocating compressors analysis ATEX approved.

Analysis of cylinder pressure is one of the main ways of checking reciprocating compressor efficiency and of promptly detec-

ting abnormal behaviour, such as:

Multi-channel system for reciprocating compressors diagnostics in

Hazardous Area (ATEX Approved)

RCX- Reciprocating Compressor Analyzer

Portable

Multichannel (up to 16 chs)

Hazardous Area approved (Ex nA e i IIC T3)

Stand-alone recording

Wireless connection to PC

On-machine collecting data

User friendly Software

Ex ia sensors

Up to 12 Dynamic pressure probes

IEPE Accelerometers

Velocimeters

Tacho probe (i.e. optical, magnetic and inductive probe)

The RCX System

Due to the use of NI cRIO product it was possibile to design the RCX system to be used both as a stand alone recording sy-

stem or a user driven system. In both cases a graphical user interface provides an intuitive and software driven configuration

of the system itself.

faulty valve behaviour

suction and discharge pressure pulsations

excessive valve pressure loss

leaking packing and piston rings

gas backflow to the suction and discharge valves


System features

Smart setup

Dedicated user interface

Sensors database manager

Multi-measurement sets managment

Automatic dead center detection

Recorded data

Cylinder pressure (indicated cycle)

Suction and discharge pressure

High Freqeuncy Vibration

Rod-drop and run-out


85-264 Vac @ 47-63 Hz

Ex-i sensors

No Ex-i Sensors

Zone 0

Zone 1

Zone 2

Wireless access point

Power supplies(to 24Vdc and to 12 Vdc)

RS232 from datalogger

Data Acquisition system

Ex-i sensors

TBSafety

barriers

Real time analysis

Angle, stroke and volume domain visualization for

cylinder pressure

Time and frequency domain visualization for vibra-

tion and pressure

Valve cover temperature collection

Valve cover vibration analysis

Performance paramaters calculation

Overlay of theoretical cycle

Data post-processing

Playback mode of recorded signals

Re-editable setup and data update

Multi domain visualization (angle, stroke, volume time, frequency)

Performance paramaters calculation (compression ratio, theoretical and measured volume efficiency, cleareance, ca-

pacty, etc.).

Data export

Real Time diagnostic performance

Cylinder and Piping Pulsations

Mechanical Looseness

Leaking Valves and Rings

Excessive Valve Losses and Deficiencies

Passage Flow Restrictions

Defective Unloaders

Clearance Discrepancies

Horsepower and Capacity Variances



Technical specifications

Acquisition modules

Channels 1-12

Input range ±10 V

Resolution 24-Bit

Sample rate 50 kS/s/ch

Filters antialias filter

Channels 13-16

Input range ±10 V

Resolution 16-Bit

Sample rate 500 kS/s/ch

Note: the bandwidth of the channel is limited by the corresponding safety barrier, if present

WLAN Interface

Standards IEEE 802.11a/b/g/h for Wireless LAN

Operating Channels (central frequency)

2.412 to 2.472 GHz (13 channels) - 5.18 to 5.24 GHz (4 channels)

Physical Characteristics

Housing glass-fiber reinforced duroplastic polyester, with hinged door

Ingress protection IP66 to EN60529

Weight 13 kg

Dimensions 405 x 305 x 202 mm (excluding the glands)

Power Requirements

Input Voltage 110-230 Vac @ 47-63 Hz

Power Consumption 120 W

Approvals

ATEX (Ex nA e i IIC T3)

Engineering

RCX- Reciprocating Compressor Analyzer