| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a nozzle for dry ice injection and a dry ice injection device which can efficiently prevent the generation of dew condensation around a tip end of the nozzle.SOLUTION: A flow passage 22 in which dry ice is pressure-fed together with compressed gas is formed, and a nozzle main body 21 injects the dry ice from a tip end side of the flow passage 22. A heating element 29 for heating a periphery of the flow passage 22 and a heat insulating body 30 for heat-insulating a periphery of an outer side of the heating element 29 are arranged on a tip end side of the nozzle main body 21. A heat insulating body 34 for heat-insulating the periphery of the flow passage 22, and a heating element 33 for heating the periphery of the outer side of the heat insulating body 34 are arranged on the nozzle main body 21. The heating element 33 for heating the periphery of the outer side of the heat insulating body 34 is arranged on a base end side of the flow passage 22 than the heating element 29 for heating the periphery of the flow passage 22.</p> |
