Modular containment apparatus for adjusting axial position of an impeller in a magnetically coupled apparatus

A pump for moving a fluid under pressure which comprises a stationary housing having a housing section, an impeller positioned within a pump end of said housing and adjacent said housing section to define a space between said impeller and an inner surface in said pump end of said housing section, said impeller being mounted on a rotatable shaft having a free end positioned within said housing and having a major axis extending through the center and along the length of the rotatable shaft, sa id rotatable shaft being mounted in a wear end of said pump, said wear end including a rotor, means for effecting rotation of said rotor and said shaft, a stationary housing seal between said means for effecting rotation and said rotor, means for introducing a fluid into said pump end, means for removing said fluid from said pump end, means for introducing gas into said wear end, an internal pump positioned between said pump end and said wear end on said rotatable shaft, said internal pump comprising a rotatable ring connected to said shaft and having a first face contacting a second face on a stationary ring, said first face and second face having a surface configuration which effects transfer of said gas in said wear end to said pump end while preventing said liquid in said pump end from entering said wear end when said shaft is rotated and said internal pump sealing said wear end from said pump end when said shaft is not rotated, means for supporting said rotatable shaft having a first surface which remains stationary when said shaft is rotated, a portion of said first surface comprising a first threaded surface, a rotatable member having a second threaded surface that cooperates with said first threaded surface so that when said rotatable member is rotated independently of said first surface, said impeller is moved relative to said housing section axially in a direction defined by said major axis, said impeller and said housing being structured to permit fluid to pass through said space when said impeller is rotated.

A pump for moving a fluid under pressure which comprises a stationary housing having a housing section, an impeller positioned within a pump end of said housing and adjacent said housing section to define a space between said impeller and an inner surface in said pump end of said housing section, said impeller being mounted on a rotatable shaft having a free end positioned within said housing and having a major axis extending through the center of and along the length of the rotatable shaft, said rotatable shaft being mounted in a wear end of said pump, said wear end including a rotor, means for effecting rotation of said rotor and said shaft and a stationary housing seal between said means for effecting rotation and said rotor, means for introducing a first liquid into said pump end, means for removing said first liquid from said pump end, means for introducing a second liquid into said wear end, means for removing said second liquid from said wear end, an internal pump positioned between said pump end and said wear end on said rotatable shaft, said internal pump comprising a rotatable ring connected to said shaft and having a first face contacting a second face on a stationary ring, said first face and second face having a surface configuration which effects pumping of said second liquid in said wear end to said pump end while preventing said first liquid in said pump end from entering said wear end when said shaft is rotated, said internal pump sealing said pump end from said wear end when said shaft is not rotated, means for cooling said wear end, means for supporting said rotatable shaft having a first surface which remains stationary when said shaft is rotated, a portion of said first surface comprising a first threaded surface, a rotatable member having a second threaded surface that cooperates with said first threaded surface so that when said rotatable member is rotated independently of said first surface, said impeller is moved relative to said housing section axially in a direction defined by said major axis, said impeller and said housing being structured to permit fluid to pass through said space when said impeller is rotated.

A pump for moving a fluid under pressure which comprises a stationary housing having a housing section, an impeller positioned within a pump end of said housing and adjacent said housing section to define a space between said impeller and an inner surface in said pump end of said housing section, said impeller being mounted on a rotatable shaft having a free end positioned within said housing and having a major axis extending through the center and along the length of the rotatable shaft, magnet means mounted in a second free end of said rotatable shaft, said rotatable shaft being mounted in a wear end of said pump, said wear end including a rotor, means for effecting rotation of said rotor and said shaft, a stationary housing seal between said means for effecting rotation and said rotor, mean for introducing a fluid into said pump end, means for removing said fluid from said pump end, means for introducing gas into said wear end, an internal pump positioned between said pump end and said wear end on said rotatable shaft, said internal pump comprising a rotatable ring connected to said shaft and having a first face contacting a second face on a stationary ring, said first face and second face having a surface configuration which effects transfer of said gas in said wear end to said pump end while preventing said liquid in said pump end from entering said wear end when said shaft is rotated and said internal pump sealing said wear end from said pump end when said shaft is not rotated, means for supporting said rotatable shaft having a first surface which remains stationary when said shaft is rotated, a portion of said first surface comprising a first threaded surface, a rotatable member having a second threaded surface that cooperates with said first threaded surface so that when said rotatable member is rotated independently of said first surface, said impeller is moved relative to said housing section axially in a direction defined by said major axis, said impeller and said housing being structured to permit fluid to pass through said space when said impeller is rotated and said rotatable shaft, said magnet means, said impeller and apparatus mounted on said shaft positioned between said magnet means and said impeller being removable from said apparatus as a single unit.

A pump for moving a fluid under pressure which comprises a stationary housing having a housing section, an impeller positioned within a pump end of said housing and adjacent said housing section to define a space between said impeller and an inner surface in said pump end of said housing section, said impeller being mounted on a rotatable shaft having a free end positioned within said housing and having a major axis extending through the center of and along the length of the rotatable shaft, magnet means mounted in a second free end of said rotatable shaft, said rotatable shaft being mounted in a wear end of said pump, said wear end including a rotor, means for effecting rotation of said rotor and said shaft and a stationary housing seal between said means for effecting rotation and said rotor, means for introducing a first liquid into said pump end, means for removing said first liquid from said pump end, means for introducing a second liquid into said wear end, means for removing said second liquid from said wear end, an internal pump positioned between said pump end and said wear end on said rotatable shaft, said internal pump comprising a rotatable ring connected to said shaft and having a first face contacting a second face on a stationary ring, said first face and second face having a surface configuration which effects pumping of said second liquid in said wear end to said pump end while preventing said first liquid in said pump end from entering said wear end when said shaft is rotated, said internal pump sealing said pump end from said wear end when said shaft is not rotated, means for cooling said wear end, means for supporting said rotatable shaft having a first surface which remains stationary when said shaft is rotated, a portion of said first surface comprising a first threaded surface, a rotatable member having a second threaded surface that cooperates with said first threaded surface so that when said rotatable member is rotated independently of said first surface, said impeller is moved relative to said housing section axially in a direction defined by said major axis, said impeller and said housing being structured to permit fluid to pass through said space when said impeller is rotated, and said rotatable shaft, said magnet means, said impeller and apparatus mounted on said shaft positioned between said magnet means and said impeller being removable from said apparatus as a single unit.

A pump for moving a fluid under pressure which comprises a housing having a housing section, an impeller positioned within a pump end of said housing and adjacent said housing section to define a space between said impeller and an inner surface in said pump end of said housing section, said impeller being mounted on a rotatable shaft having a major axis extending through the center of and along the length of the rotatable shaft, magnet means mounted in a free end of said rotatable shaft, said rotatable shaft being mounted in a wear end of said pump, said wear end including a rotor, means for effecting rotation of said rotor and said shaft, means for circulating fluid from said pump end, through said wear end and back to said pump end, means for supporting said rotatable shaft having a first surface which remains stationary when said shaft is rotated, a portion of said first surface comprising a first threaded surface, a rotatable member having a second threaded surface that cooperates with said first threaded surface so that when said rotatable member is rotated independently of said first surface, said impeller is moved relative to said housing section axially in a direction defined by said major axis, said impeller and housing being structured to permit fluid to pass through said space when said impeller is rotated and said rotatable shaft, said magnet means, said impeller and apparatus mounted on said shaft positioned between said magnet means and said impeller being removable from said apparatus as a single unit.

A pump for moving a fluid under pressure which comprises a stationary housing having a housing section, an impeller positioned within a pump end of said housing and adjacent said housing section to define a space between said impeller and an inner surface in said pump end of said housing section, said impeller being mounted on a rotatable shaft having a free end positioned within said housing and having a major axis extending through the center and along the length of the rotatable shaft, said rotatable shaft being mounted in a wear end of said pump, said wear end including a rotor, means for effecting rotation of said rotor and said shaft, a stationary housing seal between said means for effecting rotation and said rotor, means for introducing a fluid into said pump end, means for removing said fluid from said pump end, means for introducing gas into said wear end, an internal pump positioned between said pump end and said wear end on said rotatable shaft, said internal pump comprising a rotatable ring connected to said shaft and having a first face contacting a second face on a stationary ring, said first face and second face having a surface configuration which effects transfer of said gas in said wear end to said pump end while preventing said liquid in said pump end from entering said wear end when said shaft is rotated and said internal pump sealing said wear end from said pump end when said shaft is not rotated, means for supporting said rotatable shaft having a first surface which remains stationary when said shaft is rotated, a portion of said first surface having a slot, means for exerting force on walls of said slot to move said impeller relative to said housing section axially in a direction defined by said major axis, said impeller and said housing being structured to permit fluid to pass through said space when said impeller is rotated.

A pump for moving a fluid under pressure which comprises a stationary housing having a housing section, an impeller positioned within a pump end of said housing and adjacent said housing section to define a space between said impeller and an inner surface in said pump end of said housing section, said impeller being mounted on a rotatable shaft having a free end positioned within said housing and having a major axis extending through the center of and along the length of the rotatable shaft, said rotatable shaft being mounted in a wear end of said pump, said wear end including a rotor, means for effecting rotation of said rotor and said shaft and a stationary housing seal between said means for effecting rotation and said rotor, means for introducing a first liquid into said pump end, means for removing said first liquid from said pump end, means for introducing a second liquid into said wear end, means for removing said second liquid from said wear end, an internal pump positioned between said pump end an said wear end on said rotatable shaft, said internal pump comprising a rotatable ring connected to said shaft and having a first face contacting a second face on a stationary ring, said first face and second face having a surface configuration which effects pumping of said second liquid in said wear end to said pump end while preventing said first liquid in said pump end from entering said wear end when said shaft is rotated, said internal pump sealing said pump end from said wear end when said shaft is not rotated, means for cooling said wear end, means for supporting said rotatable shaft having a first surface which remains stationary when said shaft is rotated, a portion of said first surface having a slot, means for exerting force on walls of said slot to move said impeller relative to said housing section axially in a direction defined by said major axis, said impeller and said housing being structured to permit fluid to pass through said space when said impeller is rotated.

A pump for moving a fluid under pressure which comprises a stationary housing having a housing section, an impeller positioned within a pump end of said housing and adjacent said housing section to define a space between said impeller and an inner surface in said pump end of said housing section, said impeller being mounted on a rotatable shaft having a free end positioned within said housing and having a major axis extending through the center and along the length of the rotatable shaft, magnet means mounted in a second free end of said rotatable shaft, said rotatable shaft being mounted in a wear end of said pump, said wear end including a rotor, means for effecting rotation of said rotor and said shaft, a stationary housing seal between said means for effecting rotation and said rotor, mean for introducing a fluid into said pump end, means for removing said fluid from said pump end, means for introducing gas into said wear end, an internal pump positioned between said pump end and said wear end on said rotatable shaft, said internal pump comprising a rotatable ring connected to said shaft and having a first face contacting a second face on a stationary ring, said first face and second face having a surface configuration which effects transfer of said gas in said wear end to said pump end while preventing said liquid in said pump end from entering said wear end when said shaft is rotated and said internal pump sealing said wear end from said pump end when said shaft is not rotated, means for supporting said rotatable shaft having a first surface which remains stationary when said shaft is rotated, a portion of said first surface having a slot, means for exerting force on walls of said slot to move said impeller relative to said housing section axially in a direction defined by said major axis, said impeller and said housing being structured to permit fluid to pass through said space when said impeller is rotated and said rotatable shaft, said magnet means, said impeller and apparatus mounted on said shaft positioned between said magnet means and said impeller being removable from said apparatus as a single unit.

A pump for moving a fluid under pressure which comprises a stationary housing having a housing section, an impeller positioned within a pump end of said housing and adjacent said housing section to define a space between said impeller and an inner surface in said pump end of said housing section, said impeller being mounted on a rotatable shaft having a free end positioned within said housing and having a major axis extending through the center of and along the length of the rotatable shaft, magnet means mounted in a free end of said rotatable shaft, said rotatable shaft being mounted in a wear end of said pump, said wear end including a rotor, means for effecting rotation of said rotor and said shaft and a stationary housing seal between said means for effecting rotation and said rotor, means for introducing a first liquid into said pump end, means for removing said first liquid from said pump end, means for introducing a second liquid into said wear end, means for removing said second liquid from said wear end, an internal pump positioned between said pump end and said wear end on said rotatable shaft, said internal pump comprising a rotatable ring connected to said shaft and having a first face contacting a second face on a stationary ring, said first face and second face having a surface configuration which effects pumping of said second liquid in said wear end to said pump end while preventing said first liquid in said pump end from entering said wear end when said shaft is rotated, said internal pump sealing said pump end from said wear end when said shaft is not rotated, means for cooling said wear end, means for supporting said rotatable shaft having a first surface which remains stationary when said shaft is rotated, a portion of said first surface having a slot, means for exerting force on walls of said slot to move said impeller relative to said housing section axially in a direction defined by said major axis, said impeller and said housing being structured to permit fluid to pass through said space when said impeller is rotated, and said rotatable shaft, said magnet means, said impeller and apparatus mounted on said shaft positioned between said magnet means and said impeller being removable from said apparatus as a single unit.