Abstract:
A high-efficiency gas dissolving device (10) which has a diameter-expanded nozzle with a collision member, wherein the shearing force and cavitation of water produced in the inner space of the diameter-expanded nozzle are utilized to efficiently atomize air, etc. This device (10) comprises a nozzle main body (11) having a water introducer (14), a gas feeder (16) and a diameter-expanded nozzle (17), and a collision plate (18) fixed to the nozzle main body. The water introducer (14) discharges high-pressure water, introduced through a water feeding port (12), from a discharge port (13). The gas feeder (16) is provided with a gas introducing port (15) in the water introducer (14) and mixes gas into the high-pressure water by ejector action. The diameter-expanded nozzle (17) positively generates cavitation in the inner space with a forwardly expanded diameter by the flow of high-pressure water discharged from the discharge port (13). The collision plate (18) is disposed with a gap defined in front of the diameter-expanded nozzle (17), so that the water mixed with fine air bubbles discharged from the diameter-expanded nozzle (17) is dispersed around.
Abstract:
PROBLEM TO BE SOLVED: To provide a continuous dissolving device designed to stably obtain a solution with a fixed concentration irrespective of the flow variation of a main fluid and adapted to supply cleaning water or surface treating water without wasting it to electronic materials to specifically need a clean and accurate surface, and also provide a continuous dissolving method. SOLUTION: This continuous dissolving device having a dissolving part 1 to dissolve other fluids into the main fluid includes a flow meter 2 which measures the flow of the main fluid and outputs the signal of a measured value and a flow control mechanism 3 to control the supply amount of the other fluids based on the signal to be inputted. The continuous dissolving method is designed to dissolve the other fluids into the main fluid continuously. The supply amount of the other fluids is controlled based on the flow of the main fluid. COPYRIGHT: (C)2004,JPO