Thermowells是一种像悬臂内部过程管道一样安装的圆柱体，为温度传感器提供过程条件保护和过程密封。ASME PTC 19.3-1974是大多数热门设计的标准，但遇到了问题。A new standard, PTC 19.3TW, has just been approved and Emerson Process Management has created an online resource for understanding the changes.
这这rmowell Calculation Tool web siteincludes a video explanation of the new standard, whitepaper describing its history and application, and tools to help users comply with the new standard. A free online tool, for example, can provide a preliminary calculation that gives an immediate pass/fail score. More in-depth calculations are available via Emerson’s R21 report function.
爱默生制造和销售罗斯蒙特品牌热电偶套管s. Starting in 2010, Emerson joined other vendors, users, agencies and academia to help the American Society for Mechanical Engineers (ASME) update the thermowell calculation standard from PTC 19.3 to PTC 19.3 TW. According to an Emerson spokesperson, the Emerson expert calculation team has performed more than 35,000 thermowell calculations a year since then.
“我们对所需的温芯几何形状，材料和过程条件进行计算。如果设计不符合ASME要求，我们将提出建议，以实现可接受的结果。”发言人说。“我们在每个计算中都使用行业标准的ASME材料属性，以确保您保持一致和正确的结果。此外，所有Rosemount Thermowells都是由这些特性制造的，因此您可以保证该报告将与您的ThermoWell相匹配。”
