In recent years, in the high-speed development of China's economy, problems such as low power utilization, unreasonable consumption structure, and intensified contradiction between supply and demand have become increasingly prominent, and the contradiction between ecological environment deterioration and economic development has intensified, which to a large extent restricts the sustained, rapid and healthy development of the economy. Compared with the international advanced level, China still has a large gap in power efficiency, energy consumption per unit output value and other aspects. China's energy consumption per unit output value is more than twice the international average level, and the energy consumption of primary products is 40% higher than the international advanced level. China's power utilization rate is about 33%, which is 10 percentage points lower than the international advanced level, with huge energy saving potential.
Although after more than 50 years of efforts, China's power operation has made great progress and built the second largest power system in the world, according to the prediction of experts from China's Academy of engineering, by the middle of this century, China's annual power consumption will still reach 3-3.8 billion TCE standard coal under strict control. At that time, the largest domestic power supply will be about 3.2 billion TCE standard coal, which shows that the power supply gap is large Especially the shortage of oil resources. In order to ensure that the 16th National Congress of the Communist Party of China put forward the grand goal of quadrupling the gross domestic product in the first 20 years of the 21st century, fundamentally completing industrialization and building a moderately prosperous society in an all-round way, we must try our best to do a good job of open source and energy conservation together. It is urgent to save power and improve power utilization ratio. Saving power has been regarded as the "fifth power" in China after the four important powers of coal, oil, natural gas and electricity. That is to say, in a long period of time in the future, the economic growth can not only rely on new power plants, but also rely on the "fifth power plant" which "generates power" through energy saving. According to the current situation of power utilization efficiency in China, energy saving is cheaper than new boiler house, increasing heating unit, developing hydropower, thermal power and nuclear power, and has great potential.
In China, in order to be different from the large-scale boiler for power generation, industrial boiler generally refers to the steam boiler with extra steam operating pressure greater than 0.04MPa but less than 3.8mpa and the hot water boiler with extra water outlet pressure greater than 0.1MPa. It is widely used in all aspects of factory power, building heating, people's life, etc. in all sectors of the national economy and people People's life plays a very important role. China is not only a big producer of industrial boilers, but also a big user. By the end of 2003, there were 1530 enterprises holding boiler manufacturing licenses at all levels in China, including 62 at a level, 203 at B level, 264 at C level, and 1001 at D level, capable of producing boilers of different pressure levels and capacities. In recent years, the annual output of industrial boiler products in China has been basically maintained at 20000-30000 sets, 49000-63000 MW (70000-90000 steam tons) (1MW = 1.43 steam tons). According to statistics in 2003, the number of industrial boilers in China is 527400, 1254000 MW, which is close to twice the installed capacity of power station boilers. China's industrial boilers have a large quantity, a wide range, a small average capacity, and are mainly coal-fired. The annual fuel consumption is about 400 million TCE standard coal. Because the boiler operation efficiency is not high and the power waste is very serious, it consumes about 60 million tons of coal every year. In addition, industrial boilers discharge a large number of soot, SO2, NOx and other pollutants, which has become one of the primary sources of soot pollution in China. Therefore, the industrial boiler has become one of the primary objects of energy saving, energy efficiency improvement and pollution reduction. And high quality burner is the main force in energy saving and emission reduction.
——Author：ebico