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我国1986年开始试用常压锅炉,1990年普及。目前,在我国小型锅炉采暖中,其数量已居首位。然而,常压锅炉的制造质量却不尽人意,众多人误以为常压锅炉要求不严,技术含量低,人人都能搞设计,有焊工就能搞制造,不懂技术也能搞安装,以致部分地区常压锅炉的设计、制造、安装失控,出现了产品质量差,负荷不足,使用寿命短,使用不安全等严重质量问题。1 目前常压锅炉存在的问题与改进常压锅炉的制造质量与其结构有直接关系。目前大多数常压锅
China started to test atmospheric pressure boilers in 1986 and became popular in 1990. At present, China’s small-scale boiler heating, the number has been the first place. However, the manufacturing quality of atmospheric pressure boilers is not satisfactory, many people mistakenly think that the requirements of atmospheric pressure boilers are lame, low-tech, everyone can engage in design, welders can engage in manufacturing, do not understand the technology can engage in installation, As a result, the design, manufacture and installation of atmospheric boilers in some areas are out of control. There are serious quality problems such as poor product quality, insufficient load, short service life and unsafe use. At present, the problems existing in atmospheric pressure boilers and improving the manufacturing quality of atmospheric pressure boilers are directly related to their structure. Currently most pressure cooker