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低温液体运输半挂车是用于运输低温液体的专用车辆,其保温形式是采用了内外容器所形成的夹层空间内设置多层绝热材料间隔的防热辐射屏,并抽成高真空。因为低温液体的储存和运输对容器的密封性有着更高的要求,所以抽空和检漏技术的应用是保证此种车辆的保温绝热性能的重要控制手段。1抽空氦检漏中遇到的问题及解决方法低温液体运输车罐体抽空检漏示意图如图1所示。真空度抽不好是低温液体运输半挂车在抽空
The cryogenic liquid transport trailer is a special vehicle used for transporting cryogenic liquid. The heat insulation type uses the heat radiation shield with multiple layers of thermal insulation material in the interlayer space formed by the inner and outer containers, and pumped into a high vacuum. Because the storage and transport of cryogenic liquids have higher requirements for the tightness of the container, the application of evacuation and leak detection techniques is an important means of controlling the thermal insulation properties of such vehicles. 1 pumping helium leak problems encountered in the solution and solutions Cryogenic liquid tanker leak detection schematic diagram shown in Figure 1. Poor vacuum pumping low temperature liquid transport semi-trailer in taking the time