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阜新蒙古族自治县某粮库一台DZG0.35-0.7-95/70热水锅炉,自1991年底投运以来,每当炉水温度超过60℃左右,便在锅炉锅筒内发生严重水击声响,迫使司炉人员不能正常操作,锅炉及热网的安装未发现问题。那么,产生水击的原因在何处?经检查,打开除污器,其内过滤管小孔φ6mm,不足30个且个别已堵塞。要保持机械循环热水锅炉的正常运行,其供水与回水流量应趋于平衡。该炉除污器内过滤孔不足30个,(经计算这种孔应不少于107个)致使回水流量严重不足,回水进入锅炉受热面后,滞留时间较长,必然
Fuxin Mongolian Autonomous County, a grain depot a DZG0.35-0.7-95 / 70 hot water boiler, put into operation since the end of 1991, whenever the temperature of the water over 60 ℃, then in the boiler drum serious water hammer sound , Forcing the burner staff can not operate normally, the installation of the boiler and heating network found no problem. Then, the cause of water hammer where? After inspection, open the decontamination, which filter tube holes φ6mm, less than 30 and some have been blocked. To maintain the normal operation of mechanical circulation hot water boiler, the water supply and backwater flow should be balanced. The furnace decontamination filter hole less than 30, (calculated by the hole should not be less than 107) resulting in severe backwater flow inadequate backwater into the boiler heating surface, the residence time longer, inevitable