Recently, Chengdu issued the "2019 Chengdu air pollution prevention and control action plan" to optimize adjustments programs around the industrial, energy, transportation, land use structure, proposed Yajian coal, pollution abatement, control car cut oil, clean dust, haze rule technology, integrated law enforcement operations as well as six 50 detailed measures.
According to the provincial government issued the goal of improving air quality in 2019, Chengdu PM2.5年均浓度控制在 year 52 micrograms / cubic meter and below, the number of days of good air quality rate of 67.6% and above.
Chengdu six proposed action, emphasizing the Internet technology means to achieve "smart governance gas": First, accelerating into the key source of business to install online monitoring equipment; the second is the full implementation of the wisdom of the site management platform in the city's housing construction and municipal construction site, to build green construction demonstration sites; Third, establish and improve municipal departments emissions inventory information sharing liaison mechanisms and environmental systems City - District - the town (street) three emission inventory liaison mechanisms; Fourth, focus on road vehicle emissions, drawn dynamically updated mobile source pollution maps.
At the same time, promote green industrial development, increase efforts to eliminate high energy consumption and high pollution industries: on the one hand, continue to promote coal-fired boiler, "clear" work; in an orderly way in key areas of old gas (oil) boilers implementation of clean energy transformation; increase industrial furnaces efforts to eliminate non-compliance. On the other hand, the promotion of green travel, speed up the process of rail transit; in public transport, sanitation, landscaping, postal and other fields of new energy vehicles, accelerate the construction of charging (change) station, charging pile.
6 tons adjusting a combustion gas steam boiler heating system components, normal combustion boiler three basic aspects of indicators include a uniform supply of the fuel, reasonable ventilation, adjustment the combustion. 1, to maintain the high temperature of the combustion chamber temperature of the upper layer is preferably in the 1100 ~ 1300 ℃, flame orange in color. Flame reddish color indicates that the amount is not enough to the wind, the color white indicates that excessive wind. It should be appropriately adjusted. 2, fuel ash to reduce ash content in the combustibles to be below 10%. 3, reducing the temperature of the boiler flue gas exhaust gas temperature should be controlled below 200 ℃. 4, holding furnace negative excess air boiler is 1.2 to 1.4, by adjusting the balance of the blowers to maintain the furnace pressure is -20 ~ -30Pa. 5, the thermal efficiency of the boiler to improve the thermal efficiency of the boiler should be kept above 60%. II. Combustion Adjustment 1, the amount of fuel to air required for combustion and the amount of a reasonable distribution. Ventilation should first increase the amount of fuel increases, it should first reduce the amount of fuel supply reduced ventilation. 2, the thickness of the seam and seam thickness configuration grate speed is 80 ~ 120mm grate speed at high, middle and low profile configuration of several commonly used methods:. 9a rapid combustion of thin seam b c thick seam in low combustion. 3 thick seam combustion speed, the segment with the wind blowing principle: burn promoting intermediate ends. That is, after the coal into the coal starts to warm up the shutter, fire line front arch, the primary combustion zone, the middle grate to burn the rear grate zone. Normal combustion conditions are: fuel from the coal at the beginning of the fire shutter 300mm, uniform flames, the fire bed formation, at the end of combustion from the end of the grate 300 ~ 500mm. 4. maintain proper furnace temperature to avoid coking. The fire bed to maintain the homogeneous combustion, to avoid burning fire bed obliquely. 6. The residence time of the fuel on the grate in less than 30 minutes.
What is the excess air coefficient of boiler heating system components and boiler professionals work? Learning and understanding of the boiler, the following is mainly to answer some specific questions, which specifically is: What is the excess air ratio boiler? Its smoke is calculated, and what about? And, What are two boilers, not within the scope of supervisory inspection? Designed boiler work, which refers to what? What are the contents of their work? So, the next immediately to give a specific answer. 1. What is the excess air ratio boiler? Its smoke is calculated, and what about? Boiler excess air ratio, for the noun words, simply, is a boiler operation, the ratio between the actual and theoretical air consumption air consumption. For different types of boilers, it is not the same. For example, oil and gas furnace is 1.1, and the fluidized bed boiler, it is 1.1 to 1.2. As for the calculation of flue gas boiler, mainly related to combustion equipment type and fuel type two.
Environmental protection boiler heating system components use different fuel characteristics of each boiler using environmentally friendly fuel What? Common energy-saving environmental protection boiler fuel natural gas, diesel, electricity and methanol. Natural gas is the most important environmental protection boiler, its fuel natural gas is a clean energy, combustion products discharged after treatment safety. Natural gas boiler maintenance costs of environmental protection is very low compared to the energy efficiency of is very high, such as our thermal efficiency of gas-fired Stone can reach 95%. This boiler is the government's most important eco-friendly boiler. Environmental protection boiler fuel diesel fuel use in general, because of the relatively low price of diesel, sulfur dioxide and other acidic substances produced by burning it after treatment can be safe discharge standards, supporting measures that it needs storage tanks, maintenance costs are lower thermal efficiency up to 90% or even higher. Electric heating boilers are environmentally friendly boiler, wire and cable facilities is required, it is zero pollution, low maintenance costs, but the state has requirements of energy conservation, power cuts in some places the situation may occur, especially in summer the peak period. This is also a need to place special attention. Environmental protection boiler thermal efficiency of methanol selection of energy-efficient boilers, facilities storage tank is required, but also the Government's strong support for environmental protection boiler.
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