2~10吨/时的蒸汽锅炉,常常配套有铸铁省煤器。在多年的运行实践中,铸铁省煤器的造价低、耐腐蚀,但也暴露了许多不足之处:一、铸铁省煤器有许多鳍片,它的作用是增加受热面及增强省煤器管的承压强度。它的副作用是极易堵灰。一经堵灰,清除又相当困难。企业常常因此被追停炉。这是铸铁省煤器的致命弱点。有的单位将鳍片敲掉,以免堵灰,以利清灰。这样,不但节煤效果明显减弱,而且省煤器管 2 to 10 tons / hour steam boiler, often with cast iron economizer. In many years of operation, the cost of cast iron economizer is low and corrosion-resistant. However, many deficiencies have also been exposed. First, cast iron economizer has many fins. Its function is to increase heating surface and enhance economizer Tube pressure intensity. Its side effect is extremely easy to block ash. Once blocked ash, it is quite difficult to remove. Enterprises are often chased down furnace. This is a fatal weakness of cast iron economizer. Some units knocked the fins, so as not to block ash, to facilitate cleaning. In this way, not only the coal saving effect is obviously weakened, but also the economizer pipe