干冰清洗机的工作原理
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干冰清洗机的工作原理
新闻出处:浙江体彩11选五走势图 www.uj2s.com | 发布时间:2013-9-13 10:15:59
干冰浙江体彩11选五走势图的工作原理与喷钢砂、喷塑料砂及喷苏打相似,在干冰清洗作业时喷射介质干冰颗粒在高压气流中加速,通过喷嘴喷出,冲击待清洗表面。干冰浙江体彩11选五走势图的独特之处在于干冰颗粒在冲击瞬间气化。干冰的动量在冲击瞬间消失。干冰颗粒与清洗表面间迅速发生热交换,致使固体CO2(二氧化碳)迅速升华变为气体。
 
干冰与其它喷射介质不同,干冰颗粒的特点是温度极低(-78℃),当其气化后会吸收大量热量。这种低温效果使干冰清洗机具有独特的热力学特性,从而影响粘附污垢的机械性能。由于干冰颗粒与清洗表面间的温度相差很大,所以会发生热冲击现象。污垢层的温度降低后,脆性就会增大,随后干冰颗粒就能将污垢层冲击破碎。 (图/文浙江体彩11选五走势图)
中译英:
Dry ice cleaning machine working principle is similar with the grit blasting, spray plastic sand spraying and soda, in the operation of dry ice cleaning jet acceleration medium dry ice particles in high pressure air, through the nozzle, the impact surface to be cleaned. Unique dry ice cleaning is dry ice particles in the impact of instant gasification. Its momentum in the shock vanishes. Dry ice particles and the cleaning surface heat exchange occurs rapidly, resulting in a solid CO2 (carbon dioxide) quickly to sublimate into gas.
Dry ice and other different characteristics of jetting medium, the dry ice particles is extremely low temperature (-78 ℃), when the gasification will absorb a lot of heat. The temperature effect of the dry ice cleaning machine with thermodynamic characteristics of unique, thus affecting the mechanical properties of adhesion of dirt. Because the dry ice particles and the cleaning surface temperature difference, so the thermal shock occurs the phenomenon. The fouling layer after the temperature is reduced, brittleness increases, then the dry ice pellets can be dirt layer impact crushing.