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Brief introduction of steam turbine operation
This book is divided into eight chapters, namely, Thermal Characteristics of Steam Turbines under Off-design Conditions, Thermal Stress and Life Management of Steam Turbines, Steam Turbine Start-up and Peak Regulation Operation, Steam Turbine Shutdown Mode, Abnormal Vibration and New Start-up Operation Mode of Large Reheat 200MW Steam Turbines, Judgment and Test of Abnormal Vibration and Vibration Causes of Steam Turbines, Thermal Characteristics Test of Steam Turbines and Relevant Technical Development Regulations of Domestic 200MW Steam Turbines.

This book can be used as a teaching material for continuing education and training of electric workers, and also as a reference for steam turbine operation management personnel. order

Chapter I Professional Basic Knowledge

The first section of the basic concept and working principle of steam turbine

First, the basic concept of steam turbine

Second, the working principle of steam turbine stage

In the second quarter, the turbine body system

I. Cylinder

2. Baffle, baffle sleeve, stationary blade ring and stationary blade retaining ring

Third, glands

Fourth, tolerance

Verb (abbreviation for verb) leaf

Six, the rotor

In the third quarter steam turbine auxiliary system

I. Condensing equipment and system

Second, the pumping equipment

Second, the feed water regenerative equipment and deaerator

The fourth quarter steam turbine regulation and protection system

A, the task and composition of steam turbine regulation

Second, the static characteristics of the regulating system

Third, the protection system of steam turbine

Section 5 Developing Countries and DEH

I. Developing countries

First of all, DEH

Section 6 Pumps and valves

First, the basic knowledge of the pump

Second, the performance of centrifugal pump

Three. Brief introduction of valve

Chapter II Operation and Test of Steam Turbine

The first section turbine start-stop operation

I. Overview

Second, the operation of the steam turbine startup process

Third, the operation process of turbine shutdown

Normal operation and adjustment of steam turbine in the second quarter

I. Monitoring during normal operation

Second, the adjustment of main parameters in unit operation

In the third quarter steam turbine auxiliary system operation

I. Condensing system

Second, the vacuum pumping system

Third, the water supply regeneration system

Fourth, deaerator.

Verb (abbreviation of verb) cooling water system

The fourth quarter steam turbine test

First, unit testing should follow the following principles.

Second, the static test of regulating system

Third, turbine ETS trip protection test

Four. Action test of main trip solenoid valve of steam turbine

Verb (abbreviation for verb) PLU/ error loop test

Six, emergency protector oil injection test

Seven, valve activity test

Eight, valve leak test

Nine, overspeed test

X. standby overspeed trip test

Eleven, vacuum system leak test

Twelve, extraction check valve activity test

Thirteen, turbine lubricating oil pressure chain protection test

Fourteen Connection and interlock test of fire-resistant oil system

Chapter III Fault, Abnormality and Treatment of Steam Turbine System

The first section steam turbine faults, anomalies and treatment

A, turbine overspeed accident

Second, the steam turbine water, cold steam accident

3. Abnormal steam parameters

Four, the big shaft bending accident

Five, steam turbine vacuum drop

Six, turbine blade damage

Seven, bearing damage

Eight, runner wear accident

Several, oil system accidents

X. Causes and treatment measures of turbine oil emulsification

XI。 Deterioration of fuel resistance and its prevention

In the second quarter, faults, anomalies and treatment of steam turbine auxiliary equipment and systems.

A, water regeneration extraction and drainage system failure

Second, the main equipment failure of regenerative extraction heating system

Third, the feed water pump failure

Four, condenser corrosion leakage

Five, the condensate system failure

Six, ordinary centrifugal pump, motor vibration

Abnormal vibration of steam turbine generator set in the third quarter

I. Overview of vibration

Second, the vibration accident case analysis

Chapter IV Application of New Technologies and Expansion of Knowledge

Section 1 Comparison of Equipment Characteristics and Performance of Several Typical 600MW Steam Turbines

1. Comparison of unprepared performance of steam turbines

Second, the operation characteristics of steam turbine generator set

Three. Comparison of main characteristic parameters of steam turbine equipment

Fourth, summary.

Section 2 Calculation and Optimization System of Turbine Unit Operation Performance

Technical transformation of steam turbine unit in the third quarter

First, the technical form of steam turbine transformation

Second, some technical measures for unit transformation

Section 4: Example analysis of new technical transformation of steam turbine flow passage.

First, the problems of 300Mw steam turbine

Second, the transformation measures

Appendix Common Terms of Steam Turbine

A, steam turbine

Second, the steam turbine thermal system and bypass system

III. Condensing equipment and cooling system

Fourth, water heating equipment

Five, water supply oxygen removal equipment

Since the reform and opening up, China's economy has entered the track of high-speed, stable and healthy development. As an important pillar and symbol of modern economic development and social progress, the electric power industry has developed vigorously since the 1950s. By the end of 2007, the installed power generation capacity of China has reached 710.3 million kilowatts, ranking second in the world. Strong power supply has become a reliable guarantee and an important foundation for China's rapid economic development, rapid improvement of people's living standards and enhancement of comprehensive national strength.

With the development of China's power industry, power technology has also made great progress. New energy and various clean coal power generation technologies have been accelerated, and various new technologies, new materials and new processes have been widely used. 2 1 century, China electric power industry is appearing in front of the world with a brand-new look.