Compressor

Compressor (Centrifugal with Lube & Seal Oil) Tutorial

The interactive Compressor tutorial provides an overview, fundamental principles, control principles and operating principles for a centrifugal compressor with lube and seal oil system, using voice, video, animation and graphics. The topics covered are:

Overview

Purpose of Compressor
Applications of Compressor
Types of Compressor

Centrifugal Compressor

Introduction
Casing
Impeller
Shaft and Seals

Lube and Seal Oil

Introduction
Lube Oil Reservoir
Lube Oil Pump
Lube Oil Cooler
Lube Oil Filter
Lube Oil Supply to Bearings
Lube Oil Supply to Governor
Lube Oil Head Tank
Seal Oil Pump
Seal Oil Filter
Seal Oil Head Tank
Shaft Sealing
Degassing Tank

Driver – Steam Turbine

Introduction
Main Steam Valve
Speed Control and Governor

Compressor Performance

Performance Curves
Surge Phenomenon
Compressor Heating and Cooling

Pre-Startup Operation

Lube Oil System - Startup
Seal Oil System – Startup
Compressor System
Steam Turbine System

Startup Operation

Warm-Up Operation
Increase Speed
Governor Operation

Shutdown Operation

Stop Turbine
Release of Gas
Stop Auxiliary Equipment

Emergency Shutdown Operation

Introduction
Stop Turbine/Compressor
Gas Release from Compressor
Stop Auxiliary Equipment
Stop Oil Circulation

Compressor (Centrifugal with Lube & seal Oil) Simulation

The Compressor simulation is a rigorous and high-fidelity mathematical process model that provides a realistic dynamic response for a recycle gas compressor used in HDS, hydrocracker and reformer units, among others.

Process Overview:

The simulated compressor unit is a typical single-stage recycle gas compressor for processes such as hydrodesulfurization (HDS), hydrocracking and reforming. Driven by a condensing steam turbine, the compressor pressurizes reactor recycle gas and reactor makeup gas. The pressurized gas is fed to the reactor.

The compressor unit also contains a lube and seal oil system. The lube oil system provides lubricating oil to the bearings and couplings, while the seal oil system provides the seal oil to the compressor casing.

Major Operations for Trainee Practice:

Startup and Shutdown Operations
Normal Operations
Emergency Shutdown Operations
Troubleshooting Equipment, Instrument and Control Valve Malfunctions
Malfunction Recovery Actions

Simulation Features:

Effects of Change in Gas Density/Speed on Compressor Performance
Display of Dynamic Compressor Performance Curve
Compressor/Turbine Critical Speed and Compressor Surge
Interlock/Safeguard System
Detailed simulation of Lube and Seal Oil Systems
Plant Alert and Monitor

Surging
High vibration
Air lock in Filter
Low Lube Oil Temperature
High Bearing Temperature
Tank Overflow

Equipment Details

Sections

Personal tools