| 摘要 |
A method performable during operation of a fire heater for cleaning the fire heater tubes without significant adverse wear on the fire box of the fire heater or fire heater tubes to restore the heat transmission thereof. The method comprising: Impacting during the operation of fire heater tube exterior surfaces having a Burnell Hardness number of about 160-240, an abrasive particle speed of at least 625 feet per second, with said abrasive particles having a density of about 120-300 pounds per cubic foot and a particle diameter of about 0.04-2.80 millimeters.
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