A lot of questions about utility engineer (power)

1. Thermal Power Major

1. Fuel and combustion

1.1 Familiar with the classification and physical and chemical properties of common fuels in boilers.

1.2 be familiar with the composition and composition analysis methods of commonly used fuels in boilers, and master the conversion between different "bases" of composition analysis data.

1.3 be familiar with the difference between high and low calorific value of fuel, and master the calculation (estimation) and conversion of various calorific values.

1.4 understand the physical and chemical reactions and conditions of combustion, and be familiar with the combustion modes, processes and methods of various fuels and the generation of combustion pollutants.

1.5 master the theory required for fuel combustion and the calculation method of actual air volume, combustion production theory and actual flue gas volume and flue gas enthalpy.

2. Boiler

2.1 Understand the classification, parameter series and functions of boilers, and be familiar with the models of industrial boilers.

2.2 understand the combustion process and characteristics of chain furnace, chamber furnace and circulating fluidized bed boiler, and understand the production process of hot water and steam.

2.3 understand the test method of boiler heat balance, and master the calculation (estimation) method of boiler heat loss and thermal efficiency.

2.4 understand the design characteristics and structural arrangement of various heating surfaces of boilers, be familiar with the design methods of furnace volume and grate area, and master the prevention methods of low-temperature corrosion of heating surfaces at the tail of boilers.

2.5 understand the hydrodynamic characteristics of natural circulation and forced circulation boilers.

2.6 understand the calculation method of boiler strength, and be familiar with the commonly used steel for boilers.

3. steam turbine

3.1 understand the working process of steam turbine, be familiar with all kinds of losses within the stage, and master the calculation of internal power and internal efficiency of the stage.

3.2 understand the technical characteristics of multi-stage steam turbines, master the calculation of evaluation indexes of steam turbines and their devices, and be familiar with the classification and selection of steam turbines.

3.3. Understand the off-design characteristics of the steam turbine and the influence of initial and final parameter changes on the safe and economic operation of the steam turbine, and be familiar with the working diagram of the heating steam turbine.

3.4 be familiar with the working process of condensing system and equipment, and master the heat transfer and vacuum calculation method of condenser.

3.5 be familiar with the composition and functions of auxiliary systems such as steam turbine shaft seal, oil and circulating cooling water.

4. boiler room process design

4.1 master the principles and requirements of boiler room location selection and equipment layout.

4.2 master the determination of boiler room scale and boiler selection.

4.3 be familiar with the design points of boiler flue gas system and master the design calculation. Familiar with boiler fan selection principle and energy-saving adjustment mode, master selection calculation.

4.4 understand the boiler water quality standards and be familiar with the types of water treatment and oxygen removal. Master the calculation, equipment selection, system formulation and equipment arrangement of water treatment, oxygen removal and boiler blowdown systems.

4.5 master the selection, calculation and energy-saving measures of boiler feed water pump, feed water tank, condensate pump and condensate water tank.

4.6 be familiar with the layout principles and calculation methods of various pipelines.

4.7 understand the storage and transportation of the fuel used in the boiler room, be familiar with the preparation method and safety requirements of pulverized coal, and be familiar with the facilities and safety requirements of the fuel (gas) boiler.

4.8 understand the selection and main calculation of boiler room ash system.

4.9 master the main equipment of hot water boiler heating system, determination of constant pressure mode and energy-saving measures.

4.1 master the national standards and regulations on the emission of atmospheric pollutants from boilers, the calculation of emission and emission concentration, and master the prevention and control of atmospheric pollutants from boilers.

4.11 be familiar with the relevant provisions of labor safety and industrial hygiene, and master the provisions of relevant codes and regulations on fire prevention, explosion prevention and noise prevention of boiler room.

4.12 master the technical requirements for related majors.

5. process design of steam turbine house

5.1 master the composition, main compilation steps and calculation of the principle thermal system of power plant.

5.2 be familiar with the composition and function of comprehensive thermal system and main sub-system in power plant.

5.3 master the selection of main equipment such as steam turbine, deaerator, feed water pump, heating network heater, desuperheater and pressure reducer in the thermal system of power plant.

5.4 master the main thermal and economic indexes and calculation of thermal power plant, such as total thermal efficiency, thermal-electric ratio, thermal-electric cost sharing ratio and thermal power generation rate.

5.5 master the design calculation and layout of steam-water pipeline in power plant.

5.6 master the layout form and equipment layout of the main building of the power plant.

5.7 be familiar with the relevant provisions of labor safety and industry, and master the provisions of relevant codes and regulations on fire prevention, explosion prevention and noise prevention of steam turbine room.

5.8 master the technical requirements for related majors.

6. heating network and heating station

6.1 be familiar with the collection and accounting methods, calculation methods and load curves of various heat loads.

6.2 be familiar with the characteristics of various heating pipeline systems and the selection principle of heating parameters of heating network.

6.3 be familiar with the layout principles of outdoor heating pipes, the characteristics and applicable conditions of various laying methods.

6.4 master the basic method of hydraulic calculation of heating network and the drawing method and steps of hydraulic diagram of hot water pipe network system.

6.5 master the thermal elongation and thermal compensation of pipelines in heating network.

6.6 master the types and calculation of pipeline support load.

6.7 master the thrust calculation of fixed support.

6.8 be familiar with the classification of pipes and common accessories and the calculation of related valves.

6.9 understand the heat preservation and anticorrosion of pipelines.

6.1 master the design principles of heating station system and the selection and calculation of common equipment.

6.11 be familiar with various adjustment methods, characteristics and applicable conditions of heating network.

6.12 be familiar with the relevant provisions of labor safety and industrial hygiene, and master the provisions of relevant codes and regulations on fire prevention, explosion prevention and noise prevention of thermal power stations.

Second, gas specialty

7. Characteristics and evaluation of gas-making raw materials

7.1 Familiar with the classification and coal quality evaluation of China coal.

7.2 be familiar with the physical and chemical properties and technological characteristics of coal.

7.3 be familiar with the physical and chemical characteristics of oil-to-gas and other reformed gas raw materials.

7.4 understand the sources of natural gas, liquefied petroleum gas, mine gas and biogas.

8. Gas-making process

8.1 Be familiar with coke oven structure (including coking process equipment) and coking gas-making process, and master the thermal and hydrodynamic calculation of coke oven.

8.2 be familiar with gasification methods of various coal gasifiers, understand the influence of coal quality on coal gasification production, and master various gasification processes and calculations.

8.3 be familiar with the gas-making process and technological process of oil-based gas and natural gas.

8.4 be familiar with the characteristics of gas source devices (such as blast furnace, converter, etc.) of industrial by-product gas, as well as its gas production methods and influencing factors of gas production and quality.

9. Gas purification, chemical product recovery and processing

9.1 Familiar with the production process and yield of coke oven gas chemical products.

9.2 master the process calculation and equipment selection of gas cooling and purification.

9.3 be familiar with ammonium sulfate preparation and other ammonia recovery, processing technology and basic flow.

9.4 understand the composition, structure and physical and chemical properties of crude benzene. Master the design and calculation of recovering benzene hydrocarbons from gas by washing oil (benzene washing and debenzylation process).

9.5 master all kinds of desulfurization methods and catalysis of gas.

9.6 understand the process flow of tar processing and benzene refining.

1. Urban gas transmission and distribution

1.1 Be familiar with the quality indicators stipulated by the state and industry for various gas fuels.

1.2 be familiar with the physical and chemical characteristics of single gas, and master the calculation methods of physical, thermal and combustion properties of mixed gas.

1.3 be familiar with the uneven coefficient of urban gas consumption conditions, and master the method of determining the gas demand of various gas users and calculating the flow of gas pipelines.

1.4 master the hydraulic calculation of gas pipeline.

1.5 master the method of balancing supply and demand when regulating gas consumption at high and low peaks.

1.6 understand the types, structures and action mechanisms of gas regulators and meters.

11. gas combustion and application

11.1 master the combustion reaction of combustible gas and its calculation method.

11.2 familiar with gas combustion reaction process.

11.3 be familiar with different combustion methods of gas and master the design and calculation of burner.

11.4 master the determination method of gas interchangeability.

12. Gas engineering design

12.1 Master the process design and main equipment selection of the gas source plant (station) of Artificial Gas.

12.2 be familiar with the utilization method and process design of various industrial by-product gas (such as gas recovered from iron and steel enterprises).

12.3 master the process design of town gas transmission and distribution station (including natural gas gate station).

12.4 master the design of urban gas transmission and distribution network system.

12.5 master the design of town gas pressure regulating station.

12.6 be familiar with the special properties of liquefied petroleum gas (LPG) and master the process design of LPG supply station (including bottle filling station) and gasification (gas mixing) station.

12.7 master the indoor facilities and safety design of town gas.

12.8 master the requirements of safety, environmental protection and hygiene of gas facilities, and design according to relevant national laws, standards, regulations and norms.

12.9 be familiar with energy saving and emission reduction measures and the selection of energy saving and environmental protection equipment in gas engineering.

12.1 be familiar with the technical requirements such as construction, operation, test and maintenance of gas facilities.

12.11 master the technical requirements for related majors.

Third, gas specialty

13. Gas compressor

13.1 Understand the classification and application of gas compressor.

13.2 be familiar with the characteristics of theoretical cycle, practical cycle and multistage compression of piston compressor stage, and the selection of lubrication and auxiliary equipment.

13.3 be familiar with the thermal performance and calculation of piston compressor, such as exhaust pressure, exhaust volume, exhaust temperature, power and efficiency.

13.4 master the characteristics, classification, application and unit system of screw compressor.

13.5 be familiar with the thermodynamic performance and calculation of screw compressor, such as internal pressure ratio, volumetric flow rate, shaft power and exhaust temperature.

13.6 be familiar with the working process, performance curve and energy-saving adjustment of centrifugal compressor.

13.7 master the calculation of performance parameters and shaft power in centrifugal compressor stage.

14. refrigeration and low temperature

14.1 be familiar with the thermodynamic related contents of refrigeration and low temperature, phase change refrigeration, gas adiabatic expansion refrigeration and thermodynamic characteristics analysis of refrigeration cycle.

14.2 be familiar with the properties, nomenclature and thermodynamic related contents of physical property calculation of refrigeration and low temperature working fluids, working fluids and lubricating oil.

14.3 be familiar with the working process of steam refrigeration cycle and master the calculation of performance index.

14.4 master the primary and secondary throttling cycle of gas refrigeration and liquefaction cycle, isentropic expander cycle, combined cycle of isentropic and isentropic expansion.

14.5 master the gas separation mechanism and air separation system; Familiar with other gas separation methods.

14.6 familiar with refrigeration and low temperature cycle entropy analysis and analysis.

15. Gas supply and refrigeration engineering design

15.1 Usage of common gases and gas quality requirements.

15.2 be familiar with the consumption balance of gas supply and cooling stations and the determination of gas supply and cooling capacity.

15.3 familiar with all kinds of gas supply system.

15.4 master the general layout of gas supply station and refrigeration station and the layout of the station building.

15.5 be familiar with the characteristics, performance parameters and selection of all kinds of gas supply equipment.

15.6 be familiar with the characteristics, performance parameters and selection of storage and filling of various gases (including liquid gases) and transportation equipment.

15.7 be familiar with the layout and laying of gas supply station's pipe network and the selection of pipes and accessories; Master the hydraulic calculation and strength calculation of pipe network, and understand the selection of thermal compensation and pipe support.

15.8 be familiar with the construction, installation and acceptance requirements of gas supply stations and pipe networks.

15.9 be familiar with fire prevention, explosion prevention and noise control measures of gas supply system.

2. After passing the examination, the name is still public equipment engineer, but the power specialty is marked.