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合成氨生产工艺中,合成塔阻力(压差)测量是很重要的,因为高压塔内的设备,其所能承受的压差不能超过一定数值,一般在15gf/cm~2左右,同时稳定地控制压差,也关系到触煤的合成效率。如果使用高压压力计(0～600kgf/cm~2)来测量合成塔进出口压力,这几乎很难看出压力差,因为仪表本身的误差已超过塔内阻力范围。
Synthetic ammonia production process, the synthesis tower resistance (pressure) measurement is very important, because the equipment within the high-pressure tower, the pressure can withstand more than a certain value, usually about 15gf / cm ~ 2, while stable control Pressure drop, but also related to coal synthesis efficiency. If you use a high pressure gauge (0 ~ 600kgf / cm ~ 2) to measure the inlet and outlet pressure of the synthesis tower, it is almost impossible to see the pressure difference because the instrument itself has exceeded the tolerance of the tower resistance.