Acrylic acid is recycle gas blower for device seal structure

The utility model provides an acrylic acid is recycle gas blower for device seal structure, including seal (1), sealing ring (2) and O type ring (3), seal (1) inboard sets up annular groove (4), annular groove (4) are in seal (1) with form the annular space between sealing ring (2), O type ring (3) setting is being close to in the recess on sealing ring (2) periphery of annular space both sides, sealing ring (2) are on the circumferencial direction is provided with a plurality of air vents (7), the hermetic unit of sealing ring (2) is the sealed tooth structure of two sections cockscomb structures, on seal (1) is provided with with cushion gas interface (9) of annular space intercommunication. The utility model provides an acrylic acid is recycle gas blower for device seal structure, compact structure can prevent effectively that working medium and cushion gas from leaking to the unit outward