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“diesel oil fired steam boiler”- related faq

  • What are the phenomena of coking on the circulating fluidized bed boilers? 2018-11-23
    The bed temperature rises sharply. Oxygen levels go down and sometimes drop to zero. The electric current of primary air fan is less and wind pressure of air compartment is higher. Negative pressure of furnace is increased while the electric current of induced draft fan is reduced. The slag discharge is difficult or unsuccessful. When appearing bed clinkering, the bed temperature and bed pressure will be uneven distributed and not at normal condition; the measuring point of part bed tempe...
  • When should I replace the heat medium oil for thermal oil heater system? 2018-09-29
    The life of the heat medium oil for thermal oil heater is related to the operating temperature, and the life is shorter when the operating temperature is high.After half a year, the heat medium oil is used for sampling every 2-3 months. When the flash point of the heat medium oil changes by more than 20%, the acid value is less than 0.5 mgKOH/g, and the residual carbon is less than 1.5 wo/o, when the color of oil becomes dark, it indicates that it has failed and needed to be replaced.The relationship between heat transfer oil life and temperature is shown in the following table: (unit, year)  360℃ 360℃      360℃   360℃ 360℃   Neo SK-OIL 1400  10 Neo SK-OIL 1400  10 Neo SK-OIL 1400  =1 3-4 8-10 >10 KSK-OIL 280  1 3-4 6-8 >10
  • What if liquid level gauge alarms for low liquid level of expansion? 2018-07-12
    Specific performance:Low level alarm of expansion tank.Answer:Cause of failure:The pipeline system (including heater) has not been replenished in time after oil leakage or degassing. Troubleshooting:Eliminate system defects and add oil.
  • There is hammer sound, vibration and unstable pressure during the operation of thermal oil heater. 2018-07-12
    (Question details) Specific performance:There is hammer sound in the oil inlet pipe, and the pointer of the inlet and outlet pressure gauge fluctuates.Answers: Cause of failure:The system contains gas and moisture.Troubleshooting:(1) Exhaust air.(2) Cook oil.
  • What if tube explosion and bulge situation happen in the operation of thermal oil heater? 2018-07-12
    (Question details) Specific performance:Tube explosion and bulge of thermal fluid heater.Answer: Cause of failure:(1) Over temperature.(2) Over heating.(3) Hot oil metamorphism. Troubleshooting:(1) Emergency shutdown.(2) Oil discharge and fire extinguish.We use automatic control for operating, burning, high level tank level, outlet temperature and flowrate are all automatically regulated and protected to avoid overtemperature or overheating.
  • How to deal with too much damage of the dust collecting cloth bag of the biomass-fired boiler? 2018-07-12
    Question details (Performance):Dust collecting cloth bag damages a lot. Answer: The cause of the problem: As the biomass-fired boiler fuel moisture is high, and bag material is general PPS, which will reduce the base fabric of the bag in the case of high temperature, high humidity, hydrolysis, oxidation, and cause damage; In addition, the fuel moisture is high and it cannot be completely burned in the furnace, so it burns in the dust collector, which is also an important reason for the damage of the cloth bag.Troubleshooting:(1) Design by full consideration of high fuel moisture, choosing the appropriate induced draft fan, if the existing design is not enough then consider change the induced draft fan.(2) If induced air volume is sufficient, a proper distribution of the first and second wind should be considered. Generally, the fuel with high moisture and light quality such as wood chips, straw and wheat straw hood, the secondary air volume should be increased. For bark, miscellaneous