| 摘要 |
The purpose of the present invention is to provide a jet fan mounted on a tunnel, and more particularly, a housing apparatus of a jet fan which can increase the lifespan of the jet fan and keep a reliable operation by cooling heat generated during rotation of an impeller in a complex manner by the air cooling method, the water cooling method, and the lubricant cooling method. In order to achieve the above purpose, the jet fan having the venture nozzle according to the present invention comprises a main body casing having a motor which is fixed and mounted by means of multiple first fixing rods to provide rotary power when electricity is applied and forming an air passage; a silencing part having an inlet external silencer and an outlet external silencer respectively connected and assembled to an inlet side and an outlet side of the main body casing and an inlet internal silencer and an outlet internal silencer respectively mounted inside the inlet external silencer and the outlet external silencer by means of second fixing rods; multiple impellers having first and second hubs which are connected with a driving shaft of the motor to be rotated and multiple rotating wings each of which one end is assembled to a connection hole formed in a combined surface between the first and second hubs which face each other and are combined integrally with each other; and a rotation supporting unit having a cooling function which supports the impeller to be able to rotate and cools heat generated during rotation of the impeller. The jet fan further comprises a venture nozzle mounted in the main body casing at the downstream side of the air flow. |
