For example, 0.5 ton, one ton of steam boiler diesel fuel the pressure 10 capacity 3000kgs and other gas belong to the category of small boilers, which can output high-temperature, high-quality steam for the food processing plants, laundry factories and other enterprises, to meet the production needs. There are a lot of users do not know that for small gas steam boiler when the details of what should pay attention to? Our fast boiler come to you briefly some of the knowledge points.

Hefei is the blue sky to win the Battle of key areas for innovation to create an international influence is of great significance. Is determined to win the battle of the blue sky, the city combined with the actual situation, formulate a three-year action plan to win the embodiment Battle of blue sky. Details are as follows.

I. Target: 2020, sulfur dioxide, total nitrogen oxide emissions were reduced over 23.1% in 2015, more than 24.2%; PM2.5 concentration decreased more than 18% in 2015, the ratio of the number of days air quality assessment requirements up to the national , severe pollution and over several days ratio decreased by more than 25% compared with 2015; the full realization of "thirteen five" binding targets.

Second, the continued implementation of the total coal consumption control. By 2020, the city's coal accounts for a further decline in the proportion of total energy consumption; the city's total coal consumption to complete the tasks assigned by the national and provincial; new coal projects to implement the reduction of coal instead.

The development of special programs, shutting down vigorously eliminate environmental protection, energy consumption, safety and other 300,000 kilowatts coal-fired units of non-compliance. For shutting down the unit's capacity, coal consumption and emissions targets, allowed to trade or replacement may be within the total national and provincial construction plan developed according to the control range, co-ordinate arrangements for the construction of ultra-low emission coal-fired capacity unit.

Third, the implementation of the "coal to gas" and "electricity instead of coal." Under the premise of the implementation of the gas source, protect people's livelihood, ceramic, glass, foundry industry to actively promote natural gas instead of coal gasification project, orderly implementation of coal-fired facilities from coal to gas. Combined with regional and industry characteristics can actively promote industrial production, building heating and cooling, transportation, agricultural production, the implementation of the residents living in five major areas "electricity instead of coal", focus on improving the proportion of final energy consumption of electricity accounted for. Of the new "coal to gas" projects, we should adhere to increase coal gas reduction to gas will change under the premise signed gas supply contracts, orderly implementation.

Fourth, to carry out comprehensive improvement of coal-fired boilers, coal-fired boilers to increase efforts to eliminate, consolidate the results of coal-fired boilers eliminated. Coal-fired boiler (with tea furnace, operating a stove, grain storage and drying equipment, coal-fired facilities) carried out an intensive investigation, one by one registration. The city basically eliminated 35 tons of steam per hour of coal-fired boilers and furnaces tea, operating the stove, grain storage and drying equipment, coal-fired facilities, no new 35 tons of steam per hour of coal-fired boilers; 35 tons of steam per hour and coal-fired boiler above (except boilers fired power plant) all meet special requirements emission limits; allowed to remain 65 tons of steam per hour coal-fired boiler and above all the complete energy transformation and ultra-low emissions within the city. County (city) district, zone one by one before the end of June 2019 to develop low-nitrogen combustion rehabilitation programs for existing gas boiler, complete combustion of low nitrogen transformation in this area of ​​existing gas boiler before the end of 2019 more than 50%, before the end of 2020 transformation is substantially complete; after transformation principle NOx emission is not higher than 50 mg / m, and comply with appropriate safety boiler specification. Urban built-up area of ​​ultra-low emission biomass boilers implement reform.

Prevention of low temperature hot water boiler condensate corrosion measures what?

1, reduced excess air ratio is reduced boiler flue gas dew point temperature, the main cryogenic preventing corrosion. When reduced from 1.15-1.2 to 1.01-1.02, the dew point temperature of flue gas can be reduced 50-60 ℃. Excess air as possible to reduce the proportion of fuel combusted in a reasonable amount of air, the minimization of SO3.

Analysis of gas boiler flue gas temperature reduction effect gas boiler exhaust gas temperature of the flue gas dispersed drop impact profiling steam boiler diesel fuel the pressure 10 capacity 3000kg 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.