考虑钢制内压容器初始静强度和载荷的不确定性,应用信息熵理论,对容器安全系数、试验压力系数与可靠指标的关系进行探索.研究表明:1)钢制薄壁内压圆筒屈服安全系数应不小于1.50,抗拉安全系数应不小于1.90；钢制薄壁内压球形容器屈服安全系数应不小于1.40,抗拉安全系数应不小于2.15；扁平绕带式容器屈服安全系数应不小于1.45,抗拉安全系数应不小于2.40;超高压厚壁圆筒抗拉安全系数应不小于2.55.2)钢制内压容器试验压力系数在气压与液压试验时应不小于1.07.3)钢制薄壁内压圆筒试验压力系数在气压试验时应不大于1.20,在液压试验时应不大于1.35；钢制薄壁内压球形容器试验压力系数在气压试验时应不大于1.18,在液压试验时应不大于1.32；扁平绕带式容器试验压力系数在气压试验时应不大于1.24,在液压试验时应不大于1.41；超高压厚壁圆筒试验压力系数在液压试验时应不大于1.66.%Due to the uncertainty of the steel wall intrinsic pressure vessel initial static intensity and the loads, based on the application of information entropy theory, the relationship of the safety factor, the test pressure coefficient and the reliable index were analyzed. The research indicates that: 1) For cylinder vessel, the yield safety factor should be no less than 1. 50 and the burst safety factor no less than 1. 90; for spherical vessel or spherical head, the yield safety factor should be no less than 1.40 and the burst safety factor no less than 2.15; for flat ribbon-wound pressure vessel, the yield safe factor should be no less than 1. 45 and the burst safety factor no less than 2. 40 s for super-high pressure thick wall cylinder, the burst safety factor should be no less than 2. 55. 2) The test pressure coefficient of steel wall intrinsic pressure vessel should be no less than 1. 07 under barometrical and hydraulic pressure tests. 3) The test pressure coefficient of cylinder should not be greater than 1. 20 for barometrical pressure tests, and not greater than 1. 35 for hydraulic pressure tests; the test pressure coefficient of spherical vessel should not be greater than 1.18 for barometrical pressure tests, and not greater than 1. 32 for hydraulic pressure tests; the test pressure coefficient of flat ribbon-wound pressure vessel should be not greater than 1. 24 for barometrical pressure tests.and not greater than 1. 41 for hydraulic pressure tests; the test pressure coefficient of super-high pressure thick wall cylinder should not be greater than 1. 66 for hydraulic pressure tests.
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