Hot water type hot water supply machine, heat insulating material forming die and method of manufacturing heat insulating material

摘要

Problem to be solved: to provide a water storage type hot water supply machine, a heat insulating material forming type, and an insulation material manufacturing method which are advantageous in preventing the occurrence of a missing portion at the time of molding of a foamed urethane heat insulating material having an escape hole passing through a pipe connected to a hot water storage tank.Solution: the hot water storage water heater is equipped with a cylindrical storage tank 1, an outer case housing for storing the hot water storage tank 1, a pipe connected to the hot water storage tank 1, and an expanded urethane insulation material (front heat insulating material 14) covering the hot water storage tank 1 in an outer case.The foamed urethane heat insulating material has an inner wall surface facing the hot water storage tank, an outer wall surface 14b which is opposite to the inner wall surface, and an escape hole 19 for penetrating through the outer wall surface 14b from the inner wall surface and passing through the pipe.The avoidance hole 19 has an outer opening 19b opening to the outer wall surface 14b and an inner opening opening to the inner wall surface.The outer opening 19b has an elliptical shape.Diagram