AR052778A1 - ENHANCED PUMP DRIVING HEAD WITH INTEGRATED PRESS STOP BOX AND CLAMP - Google Patents

ENHANCED PUMP DRIVING HEAD WITH INTEGRATED PRESS STOP BOX AND CLAMP

Info

Publication number
AR052778A1
AR052778A1 ARP050104424A AR052778A1 AR 052778 A1 AR052778 A1 AR 052778A1 AR P050104424 A ARP050104424 A AR P050104424A AR 052778 A1 AR052778 A1 AR 052778A1
Authority
AR
Argentina
Prior art keywords
tube
seals
shaft
clamp
rotary
Prior art date
Application number
Other languages
Spanish (es)
Inventor
Mariano Pecorari
Pietro Pecorari
Original Assignee
Sai Hydraulics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sai Hydraulics Inc filed Critical Sai Hydraulics Inc
Priority to ARP050104424 priority Critical patent/AR052778A1/en
Publication of AR052778A1 publication Critical patent/AR052778A1/en

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  • Sealing Devices (AREA)

Abstract

El cabezal impulsor de bomba mejorado (1) tiene una caja prensaestopas integrada (9) y comprende: una transmision de potencia (3, 4) acoplada al eje impulsor de la bomba rotativa (8) dentro de un pozo de petroleo crudo; una caja prensaestopas (9) para retener la presion; un montaje de empuje (6) adaptado para aguantar la fuerza de traccion ejercida sobre dicho eje de la bomba. Además tiene dicha transmision de potencia compuesta de un tubo (5, 16) dispuesto para ser girado coaxialmente con el eje (8) y que tiene al menos dos diámetros diferentes. Las juntas estancas rotativas (20; 50) ajustan sobre el diámetro exterior pequeno del tubo par establecer estanqueidad a fluido entre dicho tubo y el cuerpo (19) de la caja prensaestopas. El diámetro de trabajo (51) de las juntas estancas (20; 50) es menor que el diámetro exterior grande de dicho tubo (5, 16). Están provistas juntas estancas estáticas (17) entre el tubo y el eje (8). De este modo, las juntas estancas estáticas (17) y las juntas estancas rotativas (20; 50) están adaptadas para salir junto con dicho tubo y el anillo de retencion (22) para las juntas estancas. Ventajosamente, asociado con dicho cabezal está la abrazadera mejorada (10) para bloquear el eje impulsor de la bomba rotativa (8) en pozos de petroleo crudo, abrazadera que incluye un par de mordazas (35, 36), una de traccion (35) y una de empuje (36) accionadas por medio de un tornillo (38) que actua con su extremo sobre una mordaza (35) y que engrana en un orificio roscado en la otra mordaza (36).The improved pump drive head (1) has an integrated stuffing box (9) and comprises: a power transmission (3, 4) coupled to the drive shaft of the rotary pump (8) inside a crude oil well; a stuffing box (9) to retain the pressure; a thrust assembly (6) adapted to withstand the tensile force exerted on said pump shaft. It also has said power transmission composed of a tube (5, 16) arranged to be rotated coaxially with the shaft (8) and having at least two different diameters. The rotary seals (20; 50) fit over the small outer diameter of the tube to establish fluid tightness between said tube and the body (19) of the stuffing box. The working diameter (51) of the seals (20; 50) is smaller than the large outside diameter of said tube (5, 16). Static watertight joints (17) are provided between the tube and the shaft (8). In this way, the static seals (17) and the rotary seals (20; 50) are adapted to exit together with said tube and the retaining ring (22) for the seals. Advantageously, associated with said head is the improved clamp (10) to block the drive shaft of the rotary pump (8) in crude oil wells, clamp that includes a pair of jaws (35, 36), one of traction (35) and a thrust (36) actuated by means of a screw (38) that acts with its end on a jaw (35) and that engages in a threaded hole in the other jaw (36).

ARP050104424 2005-10-21 2005-10-21 ENHANCED PUMP DRIVING HEAD WITH INTEGRATED PRESS STOP BOX AND CLAMP AR052778A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ARP050104424 AR052778A1 (en) 2005-10-21 2005-10-21 ENHANCED PUMP DRIVING HEAD WITH INTEGRATED PRESS STOP BOX AND CLAMP

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ARP050104424 AR052778A1 (en) 2005-10-21 2005-10-21 ENHANCED PUMP DRIVING HEAD WITH INTEGRATED PRESS STOP BOX AND CLAMP

Publications (1)

Publication Number Publication Date
AR052778A1 true AR052778A1 (en) 2007-04-04

Family

ID=37908510

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP050104424 AR052778A1 (en) 2005-10-21 2005-10-21 ENHANCED PUMP DRIVING HEAD WITH INTEGRATED PRESS STOP BOX AND CLAMP

Country Status (1)

Country Link
AR (1) AR052778A1 (en)

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