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为了保证锅炉运行安全使其压力控制在允许范围之内,要求安全阀必须具有很高的灵敏度、够的排放量、良好的密封性能和回座性能。但是于安全阀在制造、安装、校验方面的问题,以及用过程中的腐蚀、高温等因素的影响,使在用锅安全阀的现状不如人意,对锅炉的安全运行构成威协。1安全阀的制造质量问题目前,有的安全阀质量主要存在以下问题:1)外观质量粗糙
In order to ensure the safe operation of the boiler and its pressure control within the allowable range, the safety valve must be required to have high sensitivity, sufficient emissions, good sealing performance and back seat performance. However, the safety valve in the manufacture, installation, calibration problems, as well as the process of corrosion, high temperature and other factors, so that the status quo pot safety valve unsatisfactory, the safe operation of the boiler pose a threat. A safety valve manufacturing quality problems At present, some safety valve quality mainly the following problems: 1) the appearance of rough quality