Recently, the reporter learned that Dalian Petrochemical comprehensive optimization of furnace operation, the first 9 months of this year, more than 40 sets of heating furnace average thermal efficiency of 90.87% over the same period last year increased by 0.66%.
Dalian Petrochemical existing size 47 heating furnace, the annual burning of fuel accounts for about 35% of the company's total energy consumption, is the company's energy-hungry .In the first half of this year, when the device halted inspection, Dalian Petrochemical multiple sets of heating furnace preheating The steam is heated by the heating air to the heating medium to reduce the dew point corrosion limit. The temperature in the heating furnace is 30 degrees Celsius lower than before, and the thermal efficiency of the heating furnace is increased. More than 1,800 tons of steam can be saved each year.
The 2.2 million ton / year reforming unit is an important unit for Dalian Petrochemical to produce high-quality gasoline and realize its efficiency. However, the temperature of the outer wall of the 'four-in-one' furnace of the unit is too high, leaving some of the heat loss in vain. Site observation and research to find out the defects in the furnace wall lining, has replaced the 4200 square meters of lining, so that the outer wall of the furnace temperature dropped 30 degrees Celsius than before, reached the test furnace technology standards. Second distillation unit timely replacement furnace Preheater fouling heat exchanger tube bundle to improve heat transfer efficiency, heating furnace thermal efficiency increased by 1%, a year to save fuel more than 800 tons.
