| 摘要 |
PURPOSE: A double blade sealing apparatus for a damper, used to be coupled to a fluid transfer duct is provided to maintain constant pressure between two blades, thereby obtaining excellent shielding performance. CONSTITUTION: A double blade sealing apparatus for a damper, used to be coupled to a fluid transfer duct comprises the damper. The damper is installed in a duct transferring fluid, controls flux, or blocks flow of fluid. The damper includes a frame(1), a double blade(3), and a plurality of blade support. The double blade is formed with a multilayer in the frame. Rotary shafts are mounted to the both sides of the double blade, so that the rotary shafts rotate and are opened and closed, thereby forming a double structure and maintaining air pressure. |
