一种置于密封装置中的热电偶用固定式长保护套管,最近由吉林市仪表总厂研制成功,填补了国内空白,这种密封装置往往是连续作业,不到大修期不允许拆除装置上的热电偶,否则会使装置造成泄漏。然而一般热电偶又难于避免在整个生产周期中不损坏。而损坏了又不能拆除更换,这就给计 A thermocouple placed in the sealing device with a fixed long protective sleeve, recently instrumented by Jilin Instrument Factory successfully developed to fill the gap, this seal is often a continuous operation, not overhaul of the device is not allowed during the period On the thermocouple, otherwise it will cause leakage of the device. However, the general thermocouple and difficult to avoid in the entire production cycle without damage. The damage can not be removed and replaced, which gives the meter