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1987年秋海伦某食品厂安装的SZW2—13型锅炉,工作压力0.8MPa,1988年4月投产以后,4月24日上午10时许,锅炉压力升到0.4MPa的时候,发现锅炉给水受阻,当锅炉压力升到0.6MPa的时候,给水管道上的逆止阀门破裂了,当时认为是阀门质量问题。在27日下午3点钟左右,当压力升到0.7MPa的时候,不仅新更换的阀门破裂了,而且截止阀门也坏了,并有大量汽水冲出。检验发现锅炉给水分配法兰盘之
1987 Helena a food factory installed SZW2-13-type boiler, the working pressure of 0.8MPa, put into operation in April 1988 after the April 24 at 10 am, the boiler pressure rose to 0.4MPa when the boiler found water blocked, when Boiler pressure rose to 0.6MPa when the check valve on the water supply pipe ruptured, then that is the valve quality problems. At about 3 pm on the 27th, when the pressure rose to 0.7 MPa, not only the newly replaced valve ruptured, and the shut-off valve was broken, and a large amount of soft drinks rushed out. Test found that the distribution of boiler water distribution flange