Patent ID: 9114417
Filing Date: 2015-08-25
Classification: B05C,B08B

Abstract:
1. A nozzle for injecting jet streams in a tank filled with a liquid, comprising: a back half of the nozzle including a flow hole through which the liquid flows, the flow hole being in communication with a distribution hole of a liquid distribution pipe; and a front half of the nozzle including a plurality of injection holes communicating with the flow hole of the back of the nozzle, the plurality of injection holes comprising a first injection hole and at east one second injection hole, wherein the first injection hole extends straight and inclines at a first angle to a bottom wall of the tank, wherein the at least one second injection hole comprising: a first hole portion position extending straight side by side with the first injection hole below the first injection hole; and a second hole portion extending straight and obliquely upward from the first hole portion, the second hole portion extending obliquely relative to the first injection hole and inclining at a second angle to the bottom wall of the tank, the second angle being smaller than the first angle, wherein the first injection hole has an outlet positioned above an outlet of second portion of the at least one second injection hole, wherein the front half of the nozzle injects from the first injection hole a first jet stream directed obliquely at a first injection angle to the bottom wall of the tank, wherein the front half of the nozzle injects from the second hole portion of the at least one second injection hole a second jet stream directed at a second injection angle to the bottom wall of the tank, the second injection angle being smaller than the first injection angle of the first jet stream to the bottom wall of the tank, and wherein a combined jet stream flowing along the bottom wall of the tank is formed in an area in which the second jet stream is merged with the first jet stream, and the area is in front of a position at which the first jet stream is injected against the bottom wall of the tank.