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Catalogue of chemical instruments and automation
foreword

Chapter 1 Basic concepts of automatic control system

Section 1 Main Contents of Chemical Automation

Section 2 Basic composition and block diagram of automatic control system

Section 3 Classification of Automatic Control System

The fourth quarter transition process and quality index of automatic control system

First, static and dynamic control systems.

Second, the transition process of the control system

Third, the quality index of the control system

Four, the main factors affecting the quality of control system transition process

Section 5 Process Piping and Control Flowchart

I. Graphical symbols

Second, the letter code.

Third, the instrument number.

Practice and think about problems.

Chapter II Process Characteristics and Its Mathematical Model

Section 1 Characteristics and Description Methods of Chemical Process

Section 2 Establishment of Object Mathematical Model

First, the modeling purpose

Second, the mechanism modeling

Third, experimental modeling.

The third part describes the parameters of object features.

First, the amplification factor k

Second, the time constant t

Third, the lag time τ

Practice and think about problems.

Chapter III Testing Instruments and Sensors

Section 1 Overview

I. Measurement Process and Measurement Error

Second, the performance index of the instrument

Third, the classification of industrial instruments

Section 2 Pressure Detection and Instrument

A, pressure units and pressure measuring instruments

Second, the elastic pressure gauge

Third, the electric pressure gauge

Four, intelligent pressure transmitter

Verb (abbreviation of verb) Selection and installation of pressure gauge

Section 3 Flow Detection and Instrument

I. Overview

Second, the differential pressure flowmeter

Third, the rotor flowmeter

Four. Elliptical gear flowmeter

Verb (abbreviation of verb) turbine flowmeter

Six, electromagnetic flowmeter

Seven, vortex flowmeter

Eight, mass flowmeter

The fourth quarter liquid level detection and instrument

I. Overview

Second, the differential pressure liquid level transmitter

3. Capacitive liquid level sensor

Fourth, the nuclear level gauge.

Five, weighing liquid tank meter

Section 5 Temperature Detection and Instrument

First, the temperature detection method

Second, the thermocouple thermometer

Third, the thermal resistance thermometer

Four, electric temperature transmitter

Verb (abbreviation for verb) integrated temperature transmitter

Six, intelligent temperature transmitter

Seven, the installation of temperature measuring elements

Section VI Development of Modern Detection Technology and Sensors

First, the development of soft-sensing technology

Second, the development of modern sensor technology

Practice and think about problems.

Appendix 1 Specifications and models of common pressure gauges

Appendix II Platinum Rhodium 10- Platinum Thermocouple Grading Table

Appendix III Classification Table of Nickel-Chromium-Copper-Nickel Thermocouple

Appendix IV Classification Table of Nickel-Chromium-Nickel-Silicon Thermocouple

Appendix V Platinum Resistance Classification Table

Appendix VI Classification Table of Copper Resistance (Cu50)

Appendix VII Copper Resistance Grading Table (Cu 100)

Chapter IV Display Instruments

The first section analog display instrument

I. Automatic electronic potentiometer

Second, the automatic electronic balance bridge

Section 2 Digital Display Instrument

A, the characteristics and classification of digital display instrument

Second, the basic composition of digital display instrument

Section 3 New Display Instrument

No pen, no paper tape recorder.

Second, the virtual display instrument

Practice and think about problems.

Chapter V Automatic Control Instruments

Section 1 Overview

Section 2 Basic Control Law and Its Influence on System Transition Process

I. Two-position control

Second, the proportional control

Third, integral control.

Fourth, difference control.

Section 3 Analog Controller

First, the basic composition principle and components

Second, DDZ? Type Ⅲ electric controller

The fourth quarter digital controller

First, the main characteristics of digital controller

Second, the basic structure of digital controller

Third, KMM programmable regulator

Section 5 Programmable Controller

I. Overview

Second, the basic composition of programmable controller

Third, the programming language of programmable controller

Four. Omron c series PLC

Application example of verb (abbreviation of verb)

Practice and think about problems.

Chapter VI Implementing Agencies

Section 1 pneumatic actuators

I. Structure and Classification of Pneumatic Actuator

Second, the flow characteristics of control valve

Third, the choice of control valve

Four. Installation and maintenance of pneumatic actuators

Electric actuator in the second quarter

The third electricity-saving gas converter and electro-pneumatic valve positioner

I. Electric-pneumatic converter

Second, the electro-pneumatic valve positioner

Section 4 Digital Valve and Intelligent Control Valve

A, digital valve

Second, the intelligent control valve

Practice and think about problems.

Chapter VII Simple Control System

Section 1 Structure and Composition of Simple Control System

Section 2 Design of Simple Control System

First, the choice of controlled variables

Second, manipulated variable's choice

Third, the influence of measuring element characteristics

Fourthly, the choice of controller control law.

In the third quarter, the engineering setting of controller parameters

First, the critical proportional band method

Second, the attenuation curve method

Third, the experience test method

Practice and think about problems.

Chapter VIII Complex Control System

Section 1 Cascade Control System

I. Overview

Second, the working process of cascade control system

Third, the characteristics of cascade control system

Four, the determination of the secondary circuit in the cascade control system

Five, the main and auxiliary controller control law and the choice of positive and negative reactions.

Sixth, the engineering setting of controller parameters

Unified control system in the second quarter

First, the purpose of unified control

Second, the unified control scheme

Section 3 Ratio Control System

I. Overview

Second, the type of ratio control system

The fourth quarter feedforward control system

1. feedforward control system and its characteristics

Second, the main forms of feedforward control

Third, the application of feedforward control

Section 5 Selective Control System

I. Basic concepts

Second, the type of selective control system

Third, integral saturation and its prevention

Section 6 Split-range Control System

I. Overview

Second, the application of split-range control

Third, several problems in split-range control

Section 7 Multi-pulse Control System

Practice and think about problems.

Chapter 9 New Control System

The first section adaptive control system

A, variable gain adaptive control

Second, the model reference adaptive control system

3. Adaptive control system that directly optimizes the objective function.

Fourthly, self-tuning control system.

Section 2 Predictive Control

First, the basic structure of predictive control

Second, the characteristics and application of predictive control

Section 3 Other new control systems

First, intelligent control.

Second, the expert control system

Thirdly, fuzzy control system.

Fourthly, neural network control.

Verb (abbreviation of verb) fault detection and fault diagnosis

Six, decoupling control system

Seven, reasoning control system

Eight. robust control

Practice and think about problems.

Chapter 10 Computer Control System

Section 1 Overview

I. Composition of Computer Control System

Second, the characteristics of computer control system

Third, the development process of computer control system

Section 2 Distributed Control System

First, the characteristics of distributed control system

Second, the basic composition of distributed control system

Third, CENTUM? CS distributed control system

Section 3 Fieldbus Control System

First, the characteristics of the field bus control system

Second, the field bus international standardization

Three. Brief Introduction of Main Fieldbus Systems

Practice and think about problems.

Chapter 11 Control Scheme of Typical Chemical Plant

Section 1 Control Scheme of Fluid Conveying Equipment

First, the control scheme of centrifugal pump

Second, the control scheme of reciprocating pump

Third, the control scheme of compressor

Four. Anti-surge control of centrifugal compressor

Section 2 Automatic Control of Heat Transfer Equipment

First, the control scheme of the heat exchanger without phase change on both sides

Secondly, the automatic control of heat carrier condensation heater.

Thirdly, the automatic control of the cooler used to evaporate the coolant.

Automatic control of distillation column in the third section

First, the process requirements

Second, the interference factors of distillation column

Third, the control scheme of distillation column

Section 4 Automatic Control of Chemical Reactors

I. Control requirements of chemical reactors

Secondly, the automatic temperature control of the kettle reactor.

Three. Automatic control of fixed bed reactor

Four, automatic control of fluidized bed reactor

Section 5 Control of Biochemical Process

A, commonly used biochemical process control

Second, the penicillin fermentation process control

Third, beer fermentation process control

Practice and think about problems.

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