VENTURY NOZZLE APPARATUS

The present inventive concept relates to a venturi nozzle apparatus. Specifically, an embodiment of the present inventive concept provides a venturi nozzle apparatus which mixes water and a gas to dissolve the gas in the water, the venturi nozzle apparatus including a housing in which a flow pipe through which at least one of the water and the water in which the gas is dissolved selectively flows and a bypass pipe which communicates with the flow pipe to selectively bypass at least one of the water and the water in which the gas is dissolved flowing through the flow pipe are disposed, an injector unit which is detachably inserted into the flow pipe of the housing and configured to selectively receive the gas and the water to dissolve the gas in the water, and a valve member which is inserted into the bypass pipe of the housing and configured to cause at least one of the water and the water in which the gas is dissolved to flow to at least one of the flow pipe of the housing and the bypass pipe of the housing.