Cost Of An Electrical Boiler

Cost Of An Electrical Boiler

4. Steam boiler working pressure

Rated working pressure on the nameplate of steam boiler should be greater than the sum of steam piping resistance and production need working pressure. Please do not ignore the steam pipe resistance, because the rated steam pressure higher, the saturated steam temperature will be also higher.

To implement the central authorities on the construction of ecological civilization and major decisions and plans, "the Jiangsu provincial government office on efforts to reduce coal year 2019 work" (Su Zheng Ban Fa ﹝ 2019 ﹞ 45) requirements, carry out the "263" special action, continued reduction of non-electric industry (including captive power plant) coal consumption, in the middle of this month, Nanjing people's government Office issued the "Nanjing 2019 work program minus coal." Compared with the 2016 base, the city of Nanjing in 2019 non-industrial enterprises in the coal power industry regulations reduction target is 3.88 million tons, 13.3 million tons less than total control.

"Plan" clearly requires, Nanjing will further reduce the implementation of industrial coal, increase the elimination of backward production capacity and inefficient excess capacity Yajian efforts to accelerate the implementation of the chemical industry regulation to enhance and accelerate the implementation of Nangang, Meishan Steel coke production capacity out of work year after year, to speed up eliminate backward production capacity of coal, cement clinker production capacity in an orderly exit.

At the same time, to promote structural reduction of coal, the implementation of ecological and environmental protection requirements of the Yangtze River economic belt along the Yangtze River to promote the orderly relocation of key enterprises and industrial transformation and upgrading, the city's coal consumption structure and strive to achieve a fundamental change; accelerate the aging coal-fired non-compliance unit outage work.

According to the requirements, "plan" put forward, Nanjing will also strengthen reduce coal progress warning. Less coal combined monthly schedules, reducing the monthly publication Coal risk warning, the cumulative assessment carried out in accordance with the red, yellow and green three levels. Less progress of coal coal consumption does not exceed a custom schedule for the green light; cumulative coal consumption over a predetermined schedule within 2% of the yellow light, will be issued urge communicated, to be a reminder and a warning; the cumulative coal consumption over a predetermined plan of 2% or more for the red light, will be relevant area (park) conduct interviews, and urge them to implement technical, administrative and other measures to encourage companies to reduce coal consumption over consumption.

1. The concept of absorption of heat absorption systems using flue gas heat exchanger is used to recover waste heat of flue gas in the gas boiler, the process shown in Figure 1. In additional gas absorption heat pump with the boiler flue gas condensation heat exchanger, an absorption heat pump with natural gas as driving power, the occurrence of cold medium, the medium is cooled in the flue gas in the flue gas condensing heat exchanger, heat transfer process can used direct touch touch-type heat exchanger may direct the exhaust gas temperature in the system drops below the dew point, condensation of water vapor in the flue gas heat to reach the intent of flue gas heat recovery and water. Heat supply network backwater into the primary absorption heat pump is heated, and then into the gas boiler is heated to a temperature of planning to give out, the end of the heating process water heating network. Exhaust gas boiler into the bottom of the chimney, the draft fan is placed on top of flue gas condensation heat is withdrawn and mixed into the flue gas absorption heat pump of flue gas condensation heat exchanger, the system exhaust temperature drops to 30 ℃ vented to the atmosphere into the chimney after less. Out of the chimney flue gas between flue gas and returned to port additional partitions. Our test systems selected direct touch-type touch flue gas condensation heat exchanger. This allows the system to use the skills heating power (system for low level heat than the heat input in the system of gas) progress more than l0%. The skills currently in Beijing General Logistics Department has recovered waste heat boiler room engineering, Beijing bamboo plant to recover waste heat boiler used in the project, to obtain a better energy-saving effect. Such incremental contribution skills (including contribution absorption heat pump, heat exchanger and flue gas condensation supporting pumps, valves and other equipment) generally less able to recover 3a.

2. Mechanism smoke condensate purification of exhaust smoke condensate component of the purification of exhaust components is messy heat and mass transfer process. Condensing the flue gas is flue gas water vapor condenses on the heat exchanger wall or film into fine droplets, and large water drops or fine and then converging streams. In this process, the flue gas condense different components will be dissolved in an aqueous solution, an aqueous solution of the condensation reaction may occur in the flue gas to remove harmful substances such harmful exhaust gas content decreased. NOx in the flue gas purification process condensate: there are nitrogen oxides NO, NO2, N2O, N2O5 etc., a general term NOx. The primary material constituting the atmospheric pollution and photochemical smog is NO, NO2, other ignored. Nitrogen oxides in the boiler flue gas first is NO, and NO2 content less. NO slightly soluble in water, the dissolved amount is negligible. NO2 soluble in water to form aqueous nitric acid and nitrous acid. NO2 is a water-soluble reaction formula: 2NO2 + H2O9HNO3 + HNO2.

Reheater is essentially a low-pressure steam has done work again heated and reaches a certain temperature steam superheater, reheater effect of further improving the thermal efficiency of the cycle plant, the steam temperature control and last stage steam turbine blades within the allowable range. The steam superheater from the steam turbine in the boiler is heated up to a superheated steam heater.

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2 Tons Paper Electrical Steam Boiler Cost

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