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重油二次加热是我厂1986年的技改计划中的项目。主要解决因我厂地处山地锅炉房供气不足、油温低,冬季加热炉点火困难造成重油严重浪费等问题。针对锻工车间的使用条件,我们选用了 DR16—500型旋流式重油加热器。这种加热器通过二次加热后,可将进油温度提高50℃左右,一般可达到120～150℃、,预热2分钟就能使重油达到理想的雾化温度。而一般加热器重油停留在加热器内时间长,易结焦、外溢、污染环境。旋流式加热器的基理是重油内力随着温度升高而成线性变化减少,故雾化程度变好。如1公斤雾化重油为150～170m~2表面积,是等量的未经雾化的重油表面积的2200～2600倍。由于油滴直径与其燃烧时焦壳粒子直径成正比,而燃尽的时间则与直径平方成正比。如若要保持炉内的温变稳定,就
Heavy oil secondary heating is our plant in 1986, the project of technological transformation plan. Mainly due to my factory is located in mountainous boiler room inadequate gas supply, low oil temperature, difficult to ignite the heating furnace in winter caused a serious waste of heavy oil and other issues. For the use of forging shop conditions, we use the DR16-500-type swirling heavy oil heater. This heater through secondary heating, the oil temperature can be increased by about 50 ℃, usually up to 120 ~ 150 ℃, 2 minutes to preheat heavy oil to achieve the desired atomization temperature. The general heater heavy oil stay in the heater for a long time, easy to coking, spill, pollute the environment. The basic principle of the cyclone heater is heavy oil internal force decreases linearly with increasing temperature, so the degree of atomization becomes better. Such as 1 kg atomized heavy oil is 150 ~ 170m ~ 2 surface area, is the same amount of non-atomized heavy oil surface area of 2200 ~ 2600 times. Since the droplet diameter is proportional to the diameter of the coke shell particles when it burns, the burnout time is proportional to the square of the diameter. If you want to keep the temperature of the furnace stable,