| 主权项 |
1. A mixer nozzle assembly for mixing fluid introduced into a tank having a tank volume therein, the mixer nozzle assembly comprising:
a stationary body comprising at least one inlet and at least one outlet in fluid communication with each other, said at least one inlet being formed in a first portion of the stationary body, and said at least one outlet being formed in a second portion of the stationary body; a rotatable body mounted on the stationary body for rotation relative to the stationary body about a rotation axis in a predetermined direction when the fluid flows through the rotatable body, the rotatable body comprising at least one intake aperture and two outlet apertures in fluid communication with each other, said at least one intake aperture being in fluid communication with said at least one outlet of the stationary body for permitting the fluid to flow from said at least one inlet of the stationary body to the outlet apertures, to exit therefrom into the tank volume; the rotatable body comprising a mounting portion that is mounted on the second portion of the stationary body for rotation about the rotation axis, and a main portion comprising said at least one intake aperture and the outlet apertures; the outlet apertures being coaxial with respective outlet axes thereof, such outlet axes being offset relative to each other and substantially orthogonal to the rotation axis; the outlet apertures being formed to permit the fluid flowing into the rotatable body to be split into two substantially equivalent streams thereof flowing through the outlet apertures respectively and coaxial with the outlet axes respectively to cause the rotatable body to rotate about the rotation axis; the fluid exiting the outlet apertures mixing with at least a part of the fluid in the tank volume; a governor subassembly for controlling a speed of rotation of the rotatable body in the predetermined direction about the rotation axis, the governor subassembly comprising:
a driveshaft secured to the rotatable body for rotation with the rotatable body about the rotation axis at the speed of rotation;at least one internal element attached to the driveshaft, for rotation with the driveshaft about the rotation axis at the speed of rotation;a governor body defining at least one cavity therein in which said at least one internal element is receivable to at least partially define an internal volume between said at least one internal element and the governor body;the internal volume being adapted to receive hydraulic fluid directable therethrough at a preselected flow rate to moderate rotation of said at least one internal element about the rotation axis, for causing the rotatable body to rotate at a preselected speed; and a hydraulic circuit for governing a flow rate of the hydraulic fluid to adjust the flow rate to the preselected flow rate, for adjusting the speed of rotation of the rotatable body to the preselected speed. |
