In conventional boilers, the exhaust gas temperature is generally 160-250 deg.] C, or even higher, so that water produced during combustion of the fuel in a state of superheated water vapor in the flue gas, from the chimney with the flue gas loss. Traditional boiler thermal efficiency is generally only reach 85% -91%. The gas condensing boiler, which the exhaust gas temperature is reduced to 35-38 deg.] C, sufficiently recovered latent heat of condensation and sensible heat in the flue gas water vapor, maximum thermal efficiency of up to 108.9%.

Gas steam boiler apparatus needs to be configured since the soft water gas steam boiler, soda temperature heat pipe system is better than the boiler room air temperature is high, some of the heat will be lost to radiation and convection to the surrounding air, heat radiation loss becomes the boiler. Accordingly, when the insulation layer and the heat pipe boiler systems found damaged or leaking, it should be repaired, to reduce heat loss. Gas steam boiler to the water will contain various impurities and calcium and magnesium scale substances, boiler fouling inevitably. Low thermal conductivity of the scale, so that once the heating surface fouling due to increased thermal resistance, boiler exhaust gas temperature rises, heat losses will increase. Test data indicate that the boiler heating surface junction 1mm scale, heat losses will increase from about 2% to 4%, the thicker the scale boiler heating surface, the greater the resistance, the thermal efficiency of the boiler will be lowered more. Gas-fired steam boiler fouling not only reduces the thermal efficiency of the boiler, and the boiler Heating Surface temperature rise, causing heating surface damage, and even cause boiler explosion. Therefore, high-quality soft water treatment apparatus, in strict accordance with the process operating boiler feed water softening devices, the control of boiler feed water quality, can delay scale formation. Meanwhile, boiler scale control in real time to master the situation boiler scale, a scale clean-up, if necessary, is also very important.

Energy-saving CFB boiler for power plant

The energy-saving circulating fluidized bed boiler is a circulating fluidized bed boiler that ZG boiler has increased to invest in innovative research and development. This kind of boiler is based on the research and development of fluid state reconstruction technology and represents a new direction for the development of circulating fluidized bed technology. It overcomes the problems of high electricity consumption and wear of conventional circulating fluidized bed boilers. The power consumption of the plant can be reduced by at least 30%, and the coal saving is efficient, the operating coal consumption is reduced by more than 3%, and the fuel particles can be recycled and burned. Up to 97%-99%, boiler thermal efficiency up to 87% -92%.

It is reported that Haidong Qinghai positive response to the central problem of coal-fired boilers environmental supervision feedback rectification work, to speed up the production of green, zero emissions work processes, and improve air pollution control plan before the end of 2020, out of the central regulation of environmental inspectors feedback 10 tons of steam coal-fired boilers and 35 sets of Haidong since 2013, new registrations per hour.

Haidong county (district) government to fulfill the main responsibility for the area out of small coal-fired boilers, in accordance with their respective administrative areas, to develop the county (district) phase out remediation work plan. A thorough inventory of all the region under pressure coal-fired boiler to install and use cases, and register, identify all cases remediation coal-fired boilers since 2013 new registrations do not meet the requirements, filing one by one. It urged all localities to fully consider the urban built-up area, divided ban on burning areas, local conditions, facilities strategy, apply non-urban area Haidong 20 tons of steam per hour, new coal-fired boilers, and establish normal management mechanism. Meanwhile, arrangements for the rectification of funds, and actively apply for provincial, municipal, county departments of special subsidies, to ensure the implementation of coal to gas coal to electricity, coal-fired boiler, new alternative energy and other projects, and with the central environmental inspectors feedback registration illegal small coal-fired boilers problem rectification work combine to promote the problem has been effectively solved.