koycai 发表于 2018-10-20 13:06

UL 136 电压力锅的问题


1.如下图电压力锅中哪个部分属于primary pressure-relief valve。哪部分是secondary oremergency relief device?
2.Hydrostatic Strength Test 中如何达到该测试条件?1/2 times the release pressure of the emergency reliefdevices. 11.3 All openings for safety relief devices, gauges,andsimilar parts, are to be effectively closed. Covers havingclamping or gasketed arrangements for emergency relief are to be provided with supplementary means to enable the maximum test pressure to be exertedon the vessel and its cover.










ylgc123 发表于 2018-10-22 09:40

①电压力锅用UL136吗?年底找美华咨询的时候是怎么说,后来又说只要UL1026就行,另外我还专门去找了一款ETL的证书的电压力锅,都没涉及UL136标准。感觉这块现在要求不是特别合理明晰;
②你复制的文本有问题吧,UL 136   CL11章节的静态压力测试,
    应该是b)    2-1/2times the release pressure of the emergency relief devices(2.5被的泄压压力);
    年初去美华沟通讨论的结论,如果是弹性闸式的电压力锅,那么这个就是密封圈出泄漏时的压力。
    【现在电压力锅一般是:NTC温控转压力-----重锤压力------底座簧片下压+密封圈泄压】,最后那一步的压力值。
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