Patent ID: 8590805
Filing Date: 2013-11-26
Classification: B05B,B08B

Abstract:
1. A nozzle for generating microbubbles by passing pressurized hot water through a throttle part to be depressurized and making gas dissolved in the hot water appear as microbubbles, wherein the nozzle is provided with a bottomed cylindrical nozzle main body having a water introduction port for introducing pressurized hot water from a bottom center of the nozzle main body into the nozzle main body, a bottomed cylindrical, hollow core cylinder provided with at least one opening in a circumferential face of the core cylinder is inserted into the nozzle main body so as to assure a prescribed space relative to an inner surface of the nozzle main body to form the throttle part between an edge part of a bottom outer circumference of the core cylinder and an edge part of a bottom inner circumference of the nozzle main body, the hot water passed through the throttle part is introduced into the hollow core cylinder through the at least one opening in the circumferential face of the core cylinder, and the hot water in which microbubbles are generated is ejected from an inside to an outside of the core cylinder, and a gripper is provided for pulling the core cylinder in the direction opposite to the inserting direction; and wherein the core cylinder is energized by a prescribed energizing force in the inserting direction, and that the core cylinder is moved toward the direction opposite to the inserting direction against the energizing force by the pressure of the hot water introduced from the water introduction port to broaden the space of the throttle part and thereby enable any blockage to be released when blocking occurs in the throttle part caused by foreign particles and the like and the blocking of the throttle part can also be released by pulling the gripper to forcibly move the core cylinder against the energizing force.