Big Horizontal gas fired Boiler

To better implement the spirit of the CPC Central Committee nineteen Japanese National Assembly ecological and environmental protection, and resolutely respond Blue Sky Battle action, August 27, Qiqihar, Heilongjiang Province, the city government announced the "small coal-fired big horizontal fired boilers Qiqihar City 2018-2020 to promote the phase-out plan" (the "program"), a more concrete of small coal-fired boilers on the basis of governance "Qiqihar City, 2018-2020 tough fight pollution prevention action plan" on.

"Plan" to improve air quality at the core, to take the most effective measures for key areas of work, the various departments collaborate together to complete the task of eliminating small coal-fired boilers.

"Plan" work plan is divided into three phases:

1, before the end of September 2018, in addition to the boiler must be retained, built-up areas in the central city and the rest of the county (city) to complete a full range of 10 steam tons / hour and coal-fired boiler or elimination process.

2, before the end of 2019, each county (city) out of more than 50% of the 10 steam tons / hour and coal-fired boilers.

3, before the end of 2020, in addition to the boiler must be retained, built-up areas outside the central city and the rest of the county (city) the scope eliminate or convert 10 tons of steam / hour and coal-fired boilers.

After the big horizontal fired boiler high cost of it? That renovation work is currently boiler have been carried out in various provinces and cities, many users are willing to transform doubt there will be a point, that is the high cost after the boiler yet? Then we took the coal-fired gas boiler renovation project for analysis. During the transformation of the former coal-fired boilers, there will be some need for coal storage, transportation costs, low operating efficiency of the boiler, the boiler thermal efficiency loss, loss of fuel costs caused by production costs caused by the loss of non-compliance; Then there will be coal-fired processing costs pollutant emissions boiler; and a lot of maintenance costs and labor costs continue to treat boiler site troubleshooting, and accounting of these costs are relatively high. After that say transformation, gas boilers belong first and foremost clean energy, to some extent, less waste emissions, it will save some gas treatment costs; In addition, the auxiliary gas boiler system more orderly is not complicated, so the run is relatively stable , operating efficiency is relatively high, so will enhance the operational boiler thermal efficiency to a certain extent, there is some improvement on return loss and the cost of fuel; at the same time, gas boiler this would not take up space, just to ensure perimeter clean can be, relatively speaking, save some labor costs, probably in terms of fuel, natural gas will be slightly more expensive than some of the coal, but the longer term, energy-saving effect of natural gas boilers, will be a period of time, return this part of the difference in money, but if management properly, will reach back to the results. After so the cost after the boiler strictly speaking, is not elevated, a certain time, will achieve cost reduction.

Environmental protection big horizontal fired boiler 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.

6 tons adjusting a combustion gas steam big horizontal fired boiler, 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.

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