What is the difference between electrical and thermal engineering in thermal power engineering?

The electrical bias is electric, power supply, relay control, high voltage, thermal bias is biased towards instrument control such as temperature, humidity, pressure, and remote, and the protection is mainly for signal processing.

Specific electrical examples: transformers, high and low voltage power cabinets, maintenance and power distribution, electric parts, power local control and program control departments, etc., of course, including connecting cables and cable channels, communication systems, lightning protection and grounding systems, ....... Examples of thermal control are:

DCS control, PLC control.

Remote monitoring, sensors (temperature, pressure, level, etc.), transmitters, valves, etc., including fire alarm systems.

Although this is artificially divided into two professions, but the boundary distinction is not immutable, the two professions are you have me, I have you, in the design, construction, maintenance of many places must be carried out at the same time, a lot of electrical construction to find on the thermal drawings, there are also thermal control parts on the electrical drawings, and some cables and equipment electrical, thermal drawings have, the equipment is better, there are kks code equipment number is determined, the cable accidentally electrical and thermal engineering will appear without put, Or the phenomenon of repeated laying.

The thermal engineering major was developed under the conditions of the development of electronic technology and later from the electrical major.

I hope that experts can give a strict definition of these two majors to define and distinguish between these two majors, and the above are personal views and opinions, if there is any deviation, please correct them.

You go to the electrical network to see.

Summary. Thermal engineering is a highly technically demanding profession, covering all processes of power plant furnaces, electric coal ash, sulfur water. Specific work: 1. Maintenance of various instruments (temperature, pressure, flow, material level, components, etc.).

Thermal code trapping is a technically demanding occupation, covering all processes of power plant furnaces, electricity, coal ash, sulfur water. Specific work: 1. Maintenance of each Chi Tong Nian instrument (temperature, pressure, flow, material level, components, etc.).

Unit protection (boiler main fuel loss protection, steam turbine emergency tripping), Qi Xiao actuator commissioning, control logic modification, rotating machinery monitoring probe installation, steam electromechanical and hydraulic control, flue gas oxygen content monitoring, furnace leakage alarm, fly ash carbon, outlet flue gas emission monitoring, furnace flame monitoring and hail draft measurement, furnace electricity coordination control, etc.

Thermal power engineering, as the name suggests, is the industry of heat generation into electricity, you can work in a thermal power plant after you come out, you can also go to the power bureau if you are good, and then you can go to the power installation unit.

Thermal power plants, or cogeneration enterprises, or thermoelectric installation enterprises

1. Thermal engineering is the abbreviation of engineering thermodynamics and heat transfer.

2. It mainly studies the efficiency of thermodynamic machinery and the application of energy conversion in engineering with thermodynamic working fluids, such as the transformation of thermodynamic energy into mechanical energy to promote the work of power machinery and its efficiency.

3. Heat transfer is a discipline that studies heat transfer, such as heat conduction of reactors, convective heat transfer, and transfer of radiant energy.

4. It is mainly used in thermal energy and power engineering, nuclear energy science and engineering, thermal processing engineering, etc., and is also used in non-engineering aspects.

5. With the needs of human beings in production and life, the use and understanding of heat have gone through a long time, from heating, hot food to making metal tools, there have been many inventions and creations.

6. In the 12th and 13th centuries, China used firepower to produce a rotary motion of the marquee and used gunpowder to jet backward to accelerate the flight of arrows, which is consistent with the principle of jet propulsion such as modern gas turbines and rockets.

Thermal engineering is a profession. However, what is the specific work of the profession of thermal engineering? As of today, it is not electric.

Many people in the labor industry do not know, and even misunderstand, that it is the foundry workers in the boiler room. In fact, thermal engineering is a very technical, high-tech content is very heavy, the knowledge covers a wide range, the development of a very rapid development of a profession, its more accurate name should be industrial automation instruments and their control. It includes the detection of the working conditions of various industrial equipment, the automatic control of the production process (including program control) and the automatic protection of the equipment in operation.

The reason why it is called thermal engineering, because in the 50s, China was just liberated, the industry from scratch, coupled with the blockade of our country by the Western world, China's industrial equipment was introduced from the former Soviet Union, and the power plant was no exception, at that time, the former Soviet Union called the boiler, steam turbine and its auxiliary equipment in the power plant are called thermal equipment, and the instrument used to monitor the operation of thermal equipment is called thermal instrument, and the professional engaged in thermal instrument and its control is called thermal engineering, which has been used until today.

The thermal engineering major is a very good major, and the work in this major is very meaningful, and the task is also very difficult.

In the power plant, the main work of thermal engineering includes: the maintenance and overhaul of the monitoring instruments of the whole plant, the operation and maintenance of the DCS system, the storage and maintenance of conventional instruments, etc., such as: pressure gauges, transmitters, thermal resistance, thermocouples, thermometers, vibration meters, water level meters, oxygen meters, electric doors (some power plant electric doors belong to the electrical professional pipe), steam turbine TSI protection, ETS, DEH, DCS configuration, IO point management, etc., it is not difficult, as long as you learn modestly, you can be competent for this work; As for the commissioning department, if it is a professional commissioning department, it is a pilot test plant, if it is a commissioning department in a power plant, it is in thermal engineering, and commissioning is to adjust the installed equipment to a normal working state, can correctly respond to the measured parameters, correctly make judgments and issue action instructions, and achieve the expected purpose.

I don't know if you get it.

Thermoelectricity refers to the electrically charged phenomenon of various crystals due to temperature changes.

When two different metals (such as copper and iron) are placed together, the electrons are diffused from one metal to the other due to the difference in the concentration of free electrons in the two metals, and the amount of electron transfer is related to the temperature at which the metal is located. If two metals are placed at the same temperature, then the electron transfer reaches an equilibrium that creates a potential difference at the contact interface between the two metals, called the contact potential. Depending on the temperature, the contact potential is different, and depending on the size of the contact potential, the temperature at which the contact is located can be measured, and this device is called a thermocouple.

If two metal contact surfaces, similar to thermocouples, are placed at different temperatures and connected with wires to form a closed loop, then an uninterrupted current will be generated in the wires, which is the simplest thermodifference power generation.

Abbreviation for Engineering Thermodynamics and Heat Transfer. Among them, engineering thermodynamics is mainly to study the efficiency of thermodynamic machinery and the application of energy conversion in engineering with the participation of thermodynamic working fluids, such as the discipline of converting thermodynamic energy into mechanical energy to promote the work of power machinery and its efficiency, and then converting mechanical energy into thermodynamic energy in air conditioning. Whereas, heat transfer is a discipline that studies heat transfer, such as heat conduction of reactors, convective heat transfer, and transfer of radiant energy.

Thermal engineering is mainly used in thermal and power engineering, nuclear energy science and engineering, and also in non-engineering applications.

Thermoengineering, including thermodynamics, heat transfer, thermal calculations, measuring equipment, etc.