machinery for steam boiler
Recently, Jinan City issued a "supplementary notice on accelerating the city's boiler-depth treatment of work-related" and formulated the following objectives.
I, on the in-depth treatment of boiler completion time. Low Nitrogen transformation and the transformation of the city's ultra-low emission gas-fired boiler biomass boiler to complete the appropriate time to relax, and strive to be completed in the end of June 2019, due to the commitment of heating (cooling) or involving people's livelihood and other support complex transformation process of the boiler furnace, indeed practical difficulties, completion time may be extended to the end of October 2019.
Second, on the in-depth treatment boiler standards. According to the "program tackling autumn and winter", the low nitrogen gas boiler after transformation, in principle, is not higher than the concentration of nitrogen oxides emissions of 50mg / m³, according to encourage the transformation of 30mg / m³. Encourage the transformation of biomass boiler with ultra low emissions coal-fired power plants.
Third, on the time-depth treatment of boiler arrangement. 2018 10 completed before the end inventory information verification, planning work; organize the implementation of the completion of the work before the end of May 2019; the end of June 2019 to complete the inspection work (due to heating and other disabled do not have to bear the acceptance conditions, available at the end of November 2019 before the completion of acceptance).
Fourth, on the information submitted to the work. Please ring the economy Zi  No. 175 document complements the "Jinan City gas boiler investigation Summary Sheet" on or before October 12, "Jinan biomass boiler investigation Summary Table" to the Municipal Environmental Protection Bureau. On or before October 26, the "Jinan City Boiler depth management plan summary table", "Jinan hole sampling and sampling platform standardization construction unit summary table" and has completed the in-depth treatment of the boiler reconstruction proved supervisory monitoring report submitted to the Municipal Environmental Protection Bureau . Since the beginning of November, every Friday morning before 10:00 (for the first time submitted November 2) the progress of reform in-depth treatment of each unit case to the Municipal Environmental Protection Bureau.
How it affects the operation of the heat storage capacity boiler regulation? A: When the external load variation, the temperature in the boiler and metal working fluid, the heat and other changes have occurred. When the load increases as combustion is not timely adjusted so that the steam pressure drops, the corresponding saturation temperature drops, a corresponding reduction in boiler water liquid heat, and the heat storage pot of water at this time in the metal release, will become part of vaporized boiler water itself steam. These generate additional evaporation, can play a role in mitigation of the vapor pressure decreased. Thus, the greater the heat storage capacity, vapor pressure lowering speed slower. In contrast, when the same combustion conditions, load reduction of the vapor pressure is increased due to the saturation temperature, metal working fluid, and a part of the heat will be stored, so that the vapor pressure rise slowed down. Therefore, heat storage capacity of the boiler, the stability of the operating parameters is advantageous. But when the boiler adjustment, needs to actively changes the combustion condition is changed, the boiler load, pressure, temperature, heat storage capacity due to the slow changes, need not adapt quickly to changes in operating conditions.
Drying preservation method: Hot water boiler is suitable for possible icing and long-term storage occasions, commonly used adsorbents and nitrogen preservation methods. When the boiler water is dried and preserved, all boiler water is discharged after the boiler water is not completely cooled to 90? 95 ℃, and the waste heat is used to dry the boiler water inside.
Why is the boiler discharging?
The purpose of boiler blowdown: