WNS 4 tons gas fired hot water boiler

WNS 4 tons gas fired hot water boiler

March 19, 2019, Tangshan, Hebei Province, the city government official held "2019 Tangshan depth control key industries scientific and technological achievements Matchmaking" meeting the cement industry on air pollution emissions caps mobilization discussion. According to the news conference, Tangshan City Cement companies need before the end of September this year will be dust, sulfur dioxide, nitrogen oxides are controlled to not more than 10mg / m³, 30mg / m³, 50mg / m³. Official documents will be introduced in the near future.

It is reported, as early as in September last year, Tangshan cement industry in particular has a value of air pollutants emissions of nitrogen oxides emission concentration is less than 50mg / m³ proposed.

September 3, 2018, Tangshan Municipal Government issued the "ecological environment in Tangshan depth remediation tackling month action plan", "plan" industrial enterprises in pollution control, discharge of pollutants in the cement industry to make the following requirements: single production of raw grinding material, bag filter employed; one mill kiln production process, humidification tower may be used - electric precipitator dust collection system, dust emission concentration ≤10mg / m³. Rotary kilns for cement kiln and, preferably high dust coating, conditioning tower may be used - electric precipitator, dust emission concentration ≤10mg / m3, the concentration of sulfur dioxide emissions ≤50mg / m3, nitrogen oxides emission concentration ≤ 50mg / m3.

After the fuel oil is sprayed into the furnace, it is very easy to mix with air and burn rapidly and exothermic rapidly. Compared with the coal-fired boiler with the same parameters and capacity, the thermal strength of the furnace volume can be doubled to 1046.6 × 10 kilo coke / m / m ·h. However, in order to reduce the heat load in the combustor area so as to avoid the overtemperature of the water wall tube in this area, the furnace volume is only reduced by about 1 / 3. Because the ash content in fuel oil is very little, it can not form slag on convection heating surface, so the flue gas temperature of furnace outlet can be up to 1300 ℃, and the pitch between tubes of convection heating surface can be reduced to increase the flow rate of flue gas, so as to increase the flow rate of flue gas. Heat transfer coefficient of heating surface, saving heating area and steel.

Boiler is how the classification? Press export steam parameters of how to classify? Classification of the boiler is very extensive concept from different angles have different classification, can be classified by application area, according to the export media classification, but also by the pressure of the boiler classification. If the classification parameters according to the steam outlet, then find out which parameters steam boiler, wherein the boiler comprises evaporation, steam pressure, steam temperature etc., and is classified according to the main points of the outlet steam pressure: low pressure boiler (P <2.5MPa ), pressure in the boiler (22.5

Gas-fired steam boilers and pressure wns 4 tons fired hot water boiler has what a difference, the most critical is that goods difference: pressure hot water boiler production part of the standard high-temperature water; the production of gas steam boiler is part of the standard steam. Second, the auxiliary little difference: like supporting pressure hot water boiler water circulating pump, does not need gas steam boiler; gas steam boiler water level gauge support, do not need pressure hot water boiler; gas cylinder steam boiler supporting points, pressure hot water boiler with tank; Third, the production boilers, boiler installation, a boiler, a steam boiler safety of the gas stringent requirements. Fourth, the key difference is the use of gas boilers steam production is saturated standard high pressure gas for power generation, tie-dye, medical and other fields, is due to the production of saturated steam, pressure equipment is therefore, a boiler and the boiler installation must meet Compliant pressure hot water boiler is the production of high temperature water, not a pressure equipment. How to gas steam boiler blowdown gas boilers | oil boiler | Environmental Equipment Co. steam boiler (1) open inside discharge water valve; (2) slow external open blowdown valve, and the discharge duct for warming; (3) back and forth on the exterior from the opening and closing of the blowdown valve, the buffer boiler dirt stains, so that the dirt is discharged as water stains; (4) the inner blowdown valve closed, the waste water stored between the two valves drained water; (5) external blowdown valve closed, to complete the discharge.

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