Startup 5 ton condensing fired boiler steam temperature does not mention how high do? A: In the unit to start the process, often encounter steam pressure has reached the requirements, and the steam temperature was too much difference, especially in front of the turbine and the blast furnace or red switch occurs. Should take the following measures: appropriate to increase the amount of coal to improve the furnace heat load; adjust the secondary air ratio, increase the amount of lower secondary air; improve wind, air pressure, increased gas velocity; hydrophobic and full of air and exhaust mother pipe in front of the main steam isolation all hydrophobic.
In accordance with article 1.2 13.3.6 to 13.3.8 "5 ton condensing fired boiler design specifications" (GB50041-92): gas-fired boiler provided in the other buildings should be not less than 3 times the amount of ventilation, ventilation hour It does not include the amount of combustion air volume. Dangerous operating room and the like between the gas regulator, the amount of ventilation per hour, should be less than 3 times, when not meet the requirements natural ventilation, mechanical ventilation should be provided, and should be less than 8 air changes per hour accident ventilation times. Fuel pump and reservoir 45 ℃ flash point less than the underground tank of combustible oil, except that natural ventilation, the fuel pump mechanical ventilation 10 air changes per hour should times, six times per hour ventilation should depot mechanical ventilation. The above three are in each room in order to ensure exclusion of air and flammable hydrocarbon disposed a predetermined minimum ventilation rate.
If a single burner extinguishes, there may also be a deviation in the center of the furnace flame, and the air pressure of the extinguished burner may change. If the fuel supply is interrupted, the oil pressure or pressure indication of the extinguished burner may decrease to zero, while the fuel and gas pressure of other operation burners may rise. After the occurrence of the above situation, the 5 ton condensing fired boiler must be handled in a timely manner to ensure the safety of use.
Harbin Thermal Power Co., the main city of Harbin is the largest cogeneration business, the company bear the city's heating area of 24 million square meters, to provide heat supply for more than 400 agencies, enterprises and 140,000 residents. Currently, the company is actively respond to the latest environmental standards introduced in China, the group mobilized up and down, stepping up technological innovation, upgrading environmental protection facilities, the project is expected to complete upgrading coal-fired 5 ton condensing fired boiler at the end of this year.
Harbin Thermal Power Co., the existing five boilers for heating and power generation: where to cogeneration units No. 7,8,9, and the other two hot water boilers. No. 9350 MW units which since 2017 was completed and put into operation, has achieved ultra-low emissions standards during construction. 7, No. 8 is 300 MW units were built in 2005 and 2006, these two units of environmental transformation began in 2013. Harbin Thermal Power Co., according to the latest environmental requirements, environmental upgrading facilities. First, soot emissions transformation, the introduction of advanced electric bag filter, followed by addition of sulfur, in addition to the transformation of nitrate, new burners in addition to the low nitrogen oxides of nitrogen, a wet desulfurization technologies in addition to sulfur dioxide. After four consecutive years of continuous transformation, 7,8 units in 2017, all the transformation is completed, achieve ultra-low emissions standards. For the two 116 MW hot water boiler was built in 2013, it has long been included in the transformation plan. Earlier this year preparatory work has been completed and environmental transformation has entered the bidding process in mid-October to start construction, completed renovation project at the end of December.Free Chat
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