A boiler (boiler) is an energy conversion device, and the energy imported into the boiler consists of chemical energy from the fuel, electrical energy, boiler output of steam with some heat, high temperature water or organic heat carrier12。
The purpose of the boiler is to heat the water container on the fire, and the furnace is the place where the fuel is burned. The boiler consists of both the boiler and the furnace. Hot water or steam produced in boilers can directly provide thermal energy needed for industrial production and people's livelihoods, or can be converted to mechanical energy through vapour power units or by generators. The boilers that provide hot water, known as hot water boilers, are mainly used for subsistence purposes and are used in small quantities in industrial production. Steam-producing boilers are known as steam boilers, often referred to as boilers, mostly for power plants, ships, motor vehicles and mining enterprises。
The temperature of the boiler cycle pump temperature controller depends on the boiler type used in the system and the ambient temperature of the boiler. In general, temperature controllers should set temperatures one to two degrees below ambient temperatures to ensure the proper operation of the boiler. According to industry regulations, the temperature controller of the boiler cycle pump shall be adjusted to a minimum of 150°c to ensure the safe operation of the boiler. 3。
Device definition
Boiler: composed of boilers and stoves, with water-filled components on the top being the boiler, the heating part below being the furnace, and the integrated design of the boiler and furnace being called the boiler。
A boiler is an energy converter that is a device that heats working water or other fluids to a given parameter using heat or other energy released from fuel combustion。
The boiler is divided into “pots” and “bottles”. “pots” are pressured components that contain water and steam, heat, gasification and separation of soda, “combs” are sites for fuel combustion or other thermal heating, with combustion equipment and chamber furnaces and thermal pyrotechnics. The boilers and furnaces are engaged in the heat conversion process, and the heating and heating sub-interfaces are referred to as thermal surfaces. The boiler heats the water to steam. In addition to boilers and stoves, there are ancillary equipment such as structures, platforms, escalators, combustion, slag, pyrotechnics, pipes, stove walls, etc。
The special equipment safety act defines equipment that heats the liquid contained in it to a certain parameter using various fuels, electricity or other energy sources and provides thermal energy in the form of an external output medium, the scope of which is to design a pressure vapour boiler with a normal water level volume greater than or equal to 30 l and a rated vapour pressure greater than or equal to 0. 1 mpa (table pressure); an export water pressure greater than or equal to 0. 1 mpa (table pressure) with a rated power greater than or equal to 0. 1 mw; and an organic thermostat boiler with a rated power greater than or equal to 0. 1 mw。
Boiler classification
Classification by purpose
Station boilers: boilers for fire power plants with large capacity, high parameters, new technology and demanding requirements. It is the main product of the shanghai boiler plant。
Industrial boilers: boilers that provide steam or hot water in processes such as textiles, dyes, pharmaceuticals, chemicals, refining, paper, etc., and heating and cooling in various industries. One of the products of the shanghai boiler factory。
Boiler: boilers that provide low-parametric vapour or hot water to industrial or industrial mines, enterprises, hotels, services, etc. The demand for such boilers is high, with many manufacturing plants throughout the country。
Special boilers: double-engine, nuclear fuel, ships, wagons, waste fluids, residual heat, direct-flow boilers, etc。
By pressure
A constant pressure boiler
Low pressure boilers (pressure less than 2. 5 mpa)
Medium pressurized boiler (pressure less than equal to 3. 9 mpa)
High pressure boilers (with less than pressure equal to 10. 0 mpa)
Super-high pressure boilers (with less than or equal to 14. 0 mpa)
