Rice Bran Fired Boiler In Bangladesh


Rice Bran Fired Boiler In Bangladesh

To further promote air pollution control tough fight, push the air quality continues to improve, according to "Zhengzhou City, the 2018 campaign of air pollution control plan" and "Chung Dong New Area, the 2018 campaign of air pollution control plan" requirements, the area to carry natural gas rice bran fired boiler in bangladesh low nitrogen renovation work, hereby notify the relevant issues as follows:

(1) before the end of September 2018, Eastern 4 tons of steam boiler and above the implementation of low-nitrogen gas engineering construction and renovation. Encourage the implementation of other gas-fired low-nitrogen transformation.

Promote the transformation of low nitrogen gas boiler according to early completion, and more reward principles, decreasing year by year funding award up mode. Before the end of June 2018 to complete the construction of low-nitrogen transformation, the concentration of nitrogen oxide emissions or else higher than 30 mg / cubic meters of gas boilers, carried out in accordance with the award make up 40% of equipment investment; before the end of September 2018, to complete the low nitrogen renovation project construction, the concentration of nitrogen oxide emissions or else higher than 30 mg / cubic meters of gas boilers, carried out in accordance with the award make up 30% of equipment investment; before the end of April 2019 to complete the project construction and renovation of low-nitrogen, nitrogen oxides Or emission concentration higher than 30 mg / cubic meters of gas boilers, carried out in accordance with the award make up 15% of equipment investment;

After construction is completed, the project in a timely manner to submit an application to the territorial review township (town) office: the township (town) office on a preliminary review of the whole process of the project, the project area through on-site verification of materials (including: project implementation plan, completion report, monitoring reports, on-site verification opinions, etc.) reported the construction of the Environmental Protection agency, the EPA reported by the construction of the Municipal Environmental Protection Bureau atmosphere, the atmosphere at the Municipal Environmental Protection Bureau organizations to monitor third-party monitoring mechanism for acceptance, qualified after monitoring the municipal government finance awards complement funds, unqualified deadline for rectification.

Boiler limit low pressure rice bran fired boiler in bangladesh, pressure boiler and other pressing pressure classification is different from the boiler have different pressure, usually we can know, according to the boiler pressure points, mainly low-pressure boilers, pressure boiler, high pressure boiler, high pressure boiler, subcritical, boiler critical, supercritical and ultra-supercritical boiler boiler, the following specific pressure boundary thereof: 1) a low pressure boiler outlet steam pressure of 2.45MPa boiler or less, which are mostly saturated steam temperature or the temperature is not high at 400 ℃; 2) medium-pressure boiler outlet steam pressure of the boiler 2.94--4.90MPa. The parameters of the current series of power plant boiler, the boiler steam pressure outlet pressure is defined as 3.83MPa, steam temperature of 450 ℃; 3) high-pressure boiler outlet steam pressure of the boiler 7.84-10.8MPa. Series of parameters existing power plant boiler, high pressure steam boiler outlet 9.81MPa, plurality of outlet steam temperature 540 ℃; 4) ultrahigh pressure boiler steam outlet of the boiler 11.8-14.7MPa. The existing parameters of power plant boiler series, high pressure boiler outlet steam pressure is defined as 13.7MPa, steam outlet temperature of 540 ℃, a small number of 555 ℃; 5) subcritical pressure boiler outlet steam pressure of the boiler 15.7-19.6MPa. The existing parameters of power plant boiler series, subcritical pressure boiler outlet steam pressure is defined as 16.7MPa, outlet steam temperature of 540 ℃ or 555 ℃, a small number of 570 ℃; 6) supercritical pressure boiler outlet steam pressure exceeds the critical pressure boilers. The critical water vapor pressure is 22.1MPa. At present utility boiler with supercritical pressure more than that between 25--27MPa.

The water circulation of the double horizontal tube water tube rice bran fired boiler in bangladesh is divided into two parts: one part is the water circulation of the convection tube bundle between the upper and lower horizontal pots; the other part is the water circulation by the water wall tube around the furnace, wherein the water in the front and rear water wall tubes The steam-water mixture directly enters the upper drum, and the steam-water mixture in the water-cooled wall pipes on both sides enters the upper drum through the upper header and the steam guiding tube. The water in each water wall tube is supplied by a down pipe drawn from the lower drum.

Hot water rice bran fired boiler in bangladesh circulation pump selection criteria: hot water boiler and usually supply pump circulation pump configuration, the main circulation pump is to circulate hot water in the boiler; and the role of the water supply pump in a timely manner after the loss in the hot water boiler replenished.

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