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Keyphasor: each shaft system with the same speed of the compressor unit is equipped with a Keyphasor measuring point; Bentley 3300xl series eddy current sensor is used for measurement.

Shaft vibration: each sliding support bearing is equipped with a pair of shaft vibration measuring points in the X / Y direction (perpendicular to each other), and Bentley 3300xl series eddy current sensors are used for measurement.

Axial displacement: each thrust bearing of the compressor unit is equipped with double redundant axial displacement measuring points; Bentley 3300xl series eddy current sensor is used for measurement.

Pad vibration: each rolling support bearing is equipped with two pad vibration measuring points (installed in horizontal and vertical directions), and Bently 330500 series velomitor piezoelectric vibration speed sensor is used for measurement.

Bearing temperature (if applicable): each sliding support bearing and thrust bearing are equipped with bearing pad temperature measuring points; The working surface and non working surface of thrust bearing shall be equipped with temperature measuring points at the same time.

Gearbox shell vibration (if applicable): a pair of X / Y direction shell vibration measuring points are arranged at the support bearings of input and output shafts of each gearbox; Bentley 330400 series piezoelectric vibration acceleration sensor is used for measurement.

2.3500 configuration requirements

Each key compressor unit is equipped with Bentley 3500 frame

Each Bentley 3500 rack is equipped with redundant 3500 / 15 power modules

3500 / 22m transient data interface module (RJ45 network interface) is configured in each Bentley 3500 frame

For the above Keyphasor measuring points, the Bentley 3500 frame of each unit is equipped with the corresponding 3500 / 25 Keyphasor module

The corresponding 3500 / 42m monitor module shall be configured for the above-mentioned shaft vibration, shaft displacement, pad vibration and shell vibration measurement points

(if applicable), the above bearing temperature measuring points shall be equipped with corresponding 3500 / 60, 61 temperature monitoring modules or 3500 / 62 process quantity monitoring modules

Each monitoring channel (shaft vibration, shaft displacement and pad vibration) is configured with two relay output channels of vertical D; Use 3500 / 32 (4-channel) or 3500 / 33 (16 channel) relay module

Each Bently 3500 rack is equipped with a 3500 / 92 Modbus communication gateway

For units working in hazardous areas, the 3500 monitor module connected to the field signal shall be equipped with a built-in safety barrier; And 3500 / 04 intrinsically safe grounding module shall be configured in the 3500 rack. API618 reciprocating compressor

For units working in hazardous areas, Bentley sensors and monitoring system shall be provided with multi agency approval unit option. However, there is no requirement for the unit working in the safe area.

1. Measurement point configuration requirements

Multi event Keyphasor: a multi event Keyphasor runner mew is installed at the drive end of the reciprocating compressor to measure the Keyphasor reference signal of the reciprocating compressor. Bentley standard multi event runner mew can be selected as the multi event Keyphasor runner, or the reciprocating compressor manufacturer can customize and design the multi event Keyphasor runner according to Bentley's engineering practice experience on multi event Keyphasor runner in combination with its own equipment structure design characteristics. Multi event Keyphasor signals are measured by Bentley 3300xl series eddy current sensors.

Crankcase vibration: a vibration speed sensor is arranged on the horizontal axis of each main bearing between the two cylinder banks of the crankcase of the reciprocating compressor to measure the vibration of the crankcase body. When the working speed of the reciprocating compressor is higher than 500rpm, Bentley 330500 series velomitor piezoelectric vibration speed sensor is used; When the working speed is lower than 500rpm, Bently 190501 velomitorct piezoelectric vibration speed sensor is used.

Crosshead vibration: redundant acceleration sensors are configured on the vertical plane of the crosshead movement midpoint of each cylinder of the reciprocating compressor to monitor the impact events of reciprocating parts; Bently 330425 acceleration sensor is used for measurement.

Piston rod position: a pair of mutually perpendicular piston rod position measuring points are arranged in the horizontal and vertical directions of each cylinder of the reciprocating compressor perpendicular to the piston rod plane; Bentley 3300xl series eddy current sensor is used for measurement. For reciprocating compression piston rod measurement.

Cylinder dynamic pressure: two cylinder pressure measuring points (intake and exhaust) are arranged on each cylinder of the reciprocating compressor, and Bently 165855 cylinder pressure sensor is used for measurement.

Bearing vibration: each main bearing in the crankcase of the reciprocating compressor is equipped with a speed sensor to measure the vibration of the bearing. When the working speed of the reciprocating compressor is higher than 500rpm, Bentley 330500 series velomitor piezoelectric vibration speed sensor is used; When the working speed is lower than 500rpm, Bently 190501 velomitorct piezoelectric vibration speed sensor is used.

Bearing temperature: each main bearing is equipped with a temperature sensor to measure the bearing temperature.

Air valve temperature: each air valve (intake valve and exhaust valve) of the reciprocating compressor cylinder is equipped with a temperature measuring valve temperature.

Gearbox shell vibration (if applicable): a pair of X / Y direction shell vibration measuring points are arranged at the support bearings of input and output shafts of each gearbox; Bentley 330400 series piezoelectric vibration acceleration sensor is used for measurement.

Motor bearing vibration: each rolling support bearing is equipped with two bearing vibration measuring points (installed in horizontal and vertical directions), and Bently 330500 series velomitor piezoelectric vibration speed sensor is used for measurement.

2. Bently 3500 configuration requirements