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迄今为止,国内动力机械制造工业只制造焊有下降管的汽包锅炉。这种锅炉有以下一些缺点:运行过程中,汽包筒体靠近下降管孔区有出现裂纹的危险;当蒸汽从水冷壁下集箱带入下降管时,水循环可能遭到破坏,从而发生水冷壁屏管被烧坏事故。焊有大直径下降管的自然循环汽包炉,则无上述缺点。焊有这种下降管的汽包应具有较高的运行可靠性以及使用寿命。考虑到今后使用这类型汽包的前景,塔干罗克锅炉厂开始掌握这种产品工业生产。为此,该厂同中央机器制造工艺学院制订出
To date, the domestic power machinery manufacturing industry only manufactures drum boilers with welded down pipes. This type of boiler has the following disadvantages: During operation, the danger of cracking of the drum body near the downcomer hole is present; when the steam is led into the downcomer from the header below the water wall, the water circulation may be destroyed and water-cooling may occur Wall screen tube was burned accident. There is no such drawback as the natural circulation drum boiler with large diameter drop pipe. Drum welded with such a drop tube should have high operational reliability and service life. Considering the prospect of using this type of drum in the future, Tacrolluk boiler plant started to master the industrial production of this product. To this end, the plant with the Central Institute of Machinery Technology developed