| 摘要 |
PROBLEM TO BE SOLVED: To improve cooling efficiency by reducing the number of spray nozzles, preventing clogging of a spray nozzle and further enhancing a contact efficiency of a refrigerant injected toward a back surface of a forward path side of a belt with the belt. SOLUTION: In the spray nozzle unit 6 for an endless belt type cooler comprising a spray nozzle 6c arranged on a back surface of a forward path side of the belt to be circularly driven to inject a refrigerant, a turning tube 6b is revolvably mounted at a refrigerant supply tube arranged at a back surface position of the forward path side of the belt via a rotary tube joint 6a, the nozzle 6c is mounted at an end of the tube 6b to inject the refrigerant, and further the tube 6b is turned by an injecting force of the refrigerant.
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