1. Boiler definition and classification

Definition: Boiler refers to a device that uses various fuels, electricity or other energy sources to heat the liquid contained to a certain parameter and provide heat energy in the form of an external output medium. Its scope includes pressure steam boilers, pressure hot water boilers and organic heat carrier boilers.
Classification:

By purpose: industrial boilers (used for industrial production and heating, etc.), power station boilers (used for power generation), ship boilers (used for ship power), locomotive boilers (used for locomotive power), etc.
By type of working fluid and its output state: steam boiler, hot water boiler, special working fluid boiler, etc.
By equipment level: Class A, Class B, Class C, Class D boilers, different levels correspond to different parameter ranges.

2. Boiler composition and operation

Composition: Boilers are usually composed of boiler body, pipelines within the boiler range, safety accessories and instruments, auxiliary equipment and systems.

Operation instructions:

Boiler operation should strictly comply with relevant systems such as the "Electric Power Safety Work Regulations" and "Operation Regulations".
It is strictly forbidden to operate under overpressure and water shortage to ensure that the boiler operates in a safe, economical, stable and efficient state.
Take fire prevention measures in the boiler room and pay attention to safety hazards such as high temperature burns.

3. Boiler safety and management

Safety management:

The boiler must be equipped with special equipment safety management personnel and operators in accordance with regulations, and necessary safety education and assessment shall be carried out for them. Operators must be certified to work.
Establish safety management systems such as job responsibilities, hidden danger management, and emergency rescue, formulate operating procedures, and ensure the safe operation of special equipment.
Inspection and registration:

The boiler should obtain a use registration certificate before or within thirty days after it is put into use.
External inspection is carried out once a year, internal inspection is carried out once every two years, and water (resistance) pressure test is carried out according to the safety status of the boiler as needed.

4. Boiler maintenance and maintenance

Maintenance and maintenance:

Clean the boiler regularly to remove impurities in the steam-water system to prevent damage to the boiler and steam turbine.
The water inlet speed before the boiler is started should not be too fast, and the water inlet temperature should be controlled within a certain range to avoid equipment damage.
During the shutdown period, the boiler should be maintained, such as using wet protection or dry protection to prevent boiler corrosion.

5. Boiler energy saving and efficiency improvement

Energy-saving measures:

Strengthen combustion, improve combustion efficiency, and reduce incomplete combustion heat loss.
Reasonable air distribution to reduce smoke exhaust loss.
Ensure the quality of coal used in the boiler and reduce the heat loss of incomplete combustion of solids.
Efficiency improvement:

Adopt advanced combustion technology and equipment to improve the thermal efficiency of the boiler.
Strengthen operation analysis, optimize operation parameters, and maintain the best combustion operation conditions.
Strengthen inspection and maintenance work to ensure that the boiler operates in a safe, economical, stable and efficient state for a long time.

6. Boiler technology development trend

With the advancement of science and technology and the improvement of environmental protection requirements, boiler technology is also developing continuously. In the future, boiler technology will pay more attention to the development of high efficiency, environmental protection, and intelligence. For example, developing new combustion technologies, improving the level of automation control of boilers, and strengthening waste heat recovery and utilization will all help improve the efficiency and environmental performance of boilers.

In summary, as an important thermal energy equipment, boilers play an important role in industrial production, power generation and other fields. In order to ensure the safe operation and efficient use of boilers, it is necessary to continuously strengthen safety management, maintenance, energy conservation and consumption reduction, etc. At the same time, it is also necessary to pay attention to the latest developments in boiler technology, actively introduce and apply new technologies and equipment, and promote the continuous progress and development of boiler technology.