NOZZLE HEADER, COOLING DEVICE, MANUFACTURING METHOD OF HOT ROLLED STEEL PLATE, AND MANUFACTURING METHOD OF HOT ROLLED STEEL PLATE

摘要

PROBLEM TO BE SOLVED: To provide a nozzle header which jets pressurized water to a high temperature object and inhibits the deformation and the damage of a member included in a spray nozzle that is caused by radiation heat from the high temperature object during the operation.SOLUTION: A nozzle header is used for jetting water to a target object and includes: a header for supplying pressurized water; one or multiple spray nozzles 23 which the pressurized water is provided from the header to, and which is for jetting the pressurized water; and a heat removal structure 25 which is attached contacting at least one of the spray nozzles. The heat removal structure includes a refrigerant passage 26 for passing a refrigerant medium which cools the heat removal structure itself and the spray nozzles.