Progressive cavity pump (pcp) drive head stuffing box with...

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 33/03 (2006.01) F04C 2/107 (2006.01) F04C 15/00 (2006.01)

Patent

CA 2601492

The present invention relates to a split seal for a progressive cavity pump (PCP) drive head stuffing box. In one embodiment, a mechanical seal assembly for a pump is provided. The mechanical seal assembly includes a seal housing; first and second semi-annular mechanical seals, each at least partially disposed in the seal housing bore, and a seal sleeve rotatable relative to the seal housing; third and fourth semi-annular mechanical seals, each disposed at least partially in the seal sleeve bore, at least one of the third and fourth seals rotationally coupled to the seal sleeve; and one or more biasing members biasing the mechanical seals into engagement.

La présente invention concerne un joint fendu pour une boîte à garniture de tête de pompe à rotor hélicoïdal excentré. Une réalisation de l'invention concerne un joint mécanique pour une pompe. Le joint mécanique comprend un logement de joint, un premier et un second joints mécaniques semi-annulaires, chacun étant partiellement placé dans l'alésage du logement de joint, un manchon protecteur pour joint d'étanchéité rotatif par rapport au logement de joint, un troisième et un quatrième joints mécaniques semi-annulaires, chacun étant placé au moins partiellement dans l'alésage du manchon protecteur, au moins un du troisième ou du quatrième joints raccordé au manchon protecteur de manière rotative, et un ou plusieurs éléments d'orientation des joints mécaniques pour un engagement.

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