Harbin City, Heilongjiang Province will continue to promote Blue Sky Battle Action Plan to increase emissions control work, it intends to phase out coal-fired boiler machine manufacturers 1t azerbaijans 1201 Taiwan, in accordance with national and provincial requirements, with the distribution area are classified Shi policy. Wherein the phase-out Zone has 9 to 42 tons of steam coal-fired heating boilers 10-35; 18 out of 35 tons of steam table (or a 29 MW) "peaking" heating boiler; built-up area outside the urban area out 10 tons of steam coal 1141 boiler units. Founded out of municipal coal-fired boilers special rectification work to promote the group, environment, housing construction, Industry and Information Department, respectively, to take charge of commercial, heating, industrial three "theater" phase-out of coal-fired boilers. District, county (city) government as the responsible body, one by one out of the implementation of the responsibility to determine the transformation of the way, to promote the phase-out. Gas companies, power companies and projects ahead of docking units, to protect gas, electricity supply and project construction. Planning, construction, urban management, public security and traffic control and other departments to provide maximum support and protection for countersigned examination and approval. Not included in the scope of elimination with 65 tons of steam coal-fired boilers, Harbin through online monitoring, supervision and monitoring, enterprise self-monitoring and "double random a public" supervision and inspection and other means to strengthen supervision, and urge enterprises to strictly enforce existing emission standards for excessive emissions will be punished according to law.
Why not use the boiler machine manufacturers 1t azerbaijan drum steel plate manufacturing to thin its thickness? Drum internal diameter utility boilers typically 1.6-1.8m, to withstand high pressure, so the drum wall is also thicker. High pressure boiler drum about the above wall thickness of about 100mm, a wall thickness of boiler drum Subcritical some of around 200mm, made of carbon steel or low alloy steel multi can weigh more than 100 tons or more. The main reason is not manufactured steel plate: (1) drum operating pressure is high, but the working temperature is the saturation temperature corresponding to a pressure, typically below 350 deg.] C, up to 364 deg.] C only, therefore, not necessary to use high-strength alloy steel. (2) a cold steel, hot workability, weldability especially much worse than steel. (3) The stress concentration factor than alloy steel. (4) alloy is expensive. For these reasons, the general carbon steel drum with high (20g, 22g) and low alloy steel (e.g., 16Mn) produced.
In recent years, China's major provinces and cities are actively promoting clean warm winter, starting from the fuel supply options and control emissions, all achieved great results. So, our commitment to bring clean heating What is the significance of it, clean and warm people's lives will bring what good is it? Follow the fast boiler, which work together to understand the reason of it.
Analysis of gas boiler machine manufacturers 1t azerbaijan flue gas temperature reduction effect gas boiler exhaust gas temperature of the flue gas dispersed drop impact profiling steam boiler flue gas contains much sensible heat and latent heat, plenty of flue gas using heat power consumption can be reduced, and the end pollutant emission reduction. Higher natural gas boiler flue gas moisture content, water vapor condensation process will release a lot of latent heat of vaporization, a lot of water occur together, and less impurities in natural gas, condensed water is relatively clean, so flue gas waste heat recovery of natural gas has become a hot research . In the heating system, gas-fired boiler flue gas heat recovery can adopt different skills roads. The most common is the addition of the condensing heat exchanger in the practice of tail gas boiler, heat transfer in this area of research include theoretical and experimental research [1-4], enhanced heat transfer and corrosion research [5-7], condensation heat transfer equipment use equipment development and demonstration projects, etc. [8-9]. Boiler flue gas at a dew point of about 55 ℃ (excess air coefficient 1.15), only the heating medium temperature of less than 55 ℃ ability to recover the heat of condensation in the flue gas heat recovery better effect even at 30 deg.] C or less competence . In the category of central heating, hot net return water temperature above 50 ℃, and therefore can not recover the full flue gas condensation heat. This additional condensing heat exchanger directly in the tail gas boiler often only way to recover some of the latent heat of flue gas condensation heat is not the end of the depth to recover.