low pressure boiler thermal efficiency

Boilers operate by heating water to make steam, and using that steam for heat or energy generation. For the most part, alow pressure boiler thermal efficiencyis fairly efficient, but there is some heat loss when the byproducts of combustion are vented. The byproducts of combustion are still hot, often quite hot, and when they are simply vented, this represents lost heat for theboiler.

Since Prime Minister Li Keqiang in the "five" proposed "Blue Sky Wars," after the strategic plan states that China provinces and cities are doing to improve environmental protection. Jilin Provincial People's Government recently issued a "Jilin Province to implement the winning Blue Sky Battle three-year action plan to implement the program," coal-fired units will conduct a comprehensive reform.

Jilin Provincial People's Government recently issued a "Jilin Province to implement the winning Blue Sky Battle three-year action plan to implement the program" (hereinafter referred to as the "Program") said that before the end of 2018, the province's 300,000 kilowatts or more coal-fired units completed ultra-low emissions transformation. Continue to promote the 200,000 kilowatts class ultra low emission coal-fired unit renovation project, before the end of 2019, ultra-low emissions and strive to transform the province's total unit capacity of thermal power capacity of more than 75%.

"Program" also proposed to complete the transformation of ultra-low emission electricity generation units appropriate to increase the number of hours. Vigorously for shutting down environmental protection, energy consumption, safety and other 300,000 kilowatts coal-fired units of non-compliance. Coal-fired generating units to increase the technological transformation efforts, speed up the heating pipe network construction, fully release and improve the heating capacity, eliminate coal heating boiler pipe network coverage and the range of loose coal. In areas do not have the cogeneration district heating conditions, the existing multiple small coal-fired boilers, alternative construction of large-capacity coal-fired boilers in accordance with the principle of equal volume. Before the end of 2020, within a 15 km radius of 300,000 kilowatts of heating and cogeneration power plant above range, in the case of cogeneration heating load to meet the heating needs, in addition to the need to retain the peaking boiler, coal-fired heating boilers and small coal-fired thermoelectric behind all closed down integration.

In addition, long-term control of total coal consumption in accordance with planning requirements, Jilin Province, to continue to reduce the amount of coal consumption, coal consumption in new coal projects to implement alternative reduction, by 2020, reduce the proportion of coal accounting for the province's total primary energy consumption to 63% the following. According to focus on the use of coal and clean use of principles, focusing on reduction of non-power coal, increase the proportion of electricity from coal, the state-assigned task is completed, the province's electricity by 2020, the proportion of thermal coal coal consumption reached more than 55%.

In the future, the province will carry out a comprehensive environmental aspects of governance, economic development and environmental protection go hand in hand.

Third, the sewage treatment

Bottom blowdown gas boiler flue gas condensation can be prevented, because the flue gas condensing flue gas (natural gas or diesel fuel) and the flue gas temperature is too low in the water, the water generated there, part of the moisture is discharged from the chimney, the chimney wall is absorbed, the remaining is deposited at the bottom of the chimney, the amount of water produced by the following factors: the temperature of the flue gas (91% efficiency, the flue gas must be at a temperature of 170 ℃) where the total surface area of ​​the insulation, and the material of the chimney of the chimney stack.

Food factory steam low pressure boiler thermal efficiency safety valve installation Note what food factory steam boiler safety valve installation needs to pay attention to what a, a rated capacity greater than 0.5t h the evaporated steam boiler /, less than two safety valves need to be installed: the rated capacity of less than or evaporation equal to 0.5t / h boiler installation shall be not less than a safety valve. The economizer outlet, the steam superheater outlet must provide a safety valve. 2, the safety valve is required to be mounted vertically at the highest and the respective position of the reel on the header. Between the valve and the drum or header it is possible, not between the outlet pipe and the valve for steam. 3, the safety valve should prevent the lever means and movement of the self-weight limit overflow guide lever, the spring should have a safety valve and a lifting handle means preventing any adjusting screw adjustment.

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