CN205744406U - Oil-well pump of oil well increases row and helps picking device - Google Patents

Abstract

The utility model discloses a kind of oil-well pump of oil well to increase row and help picking device, including the row of helping cylinder, upper extension bar, lower extension bar, layering cylindrical tube, balance guide pillar, positive stop lug boss, floating disk, perforation of sliding, positioning round table, coil tension spring, lower discharge orifice, upper discharge orifice, flow through hole.The structural principle of this utility model device is simple, by the cooperation between the floating disk set in the upper end of oil well pump and the row's of helping cylinder, make it synchronize during up in downside and produce negative pressure region, offsetting the upper end infiltration that the negative pressure of oil well pump self generation causes, omnidistance mate-assist is the most efficient.

Description

Oil-well pump of oil well increases row and helps picking device

Technical field

This utility model relates to a kind of auxiliary device, and a kind of oil-well pump of oil well increases row and helps picking device.

Background technology

In field of oil field oil extraction, oil well pump is important producing well lifting equipment.Oil well pump is by pump barrel, plunger and valve Valve forms.When plunger is up, travelling valve valve cuts out, and plunger lower space produces negative pressuren zone, and the liquid being full of negative pressuren zone comes From two aspects, one is that the standing valve valve under liquid backs down pump in pit shaft enters negative pressuren zone, and this is that we need.Two is post Plug also makes the liquid having been lifted in oil pipe column seep back into the negative pressuren zone of plunger bottom with the gap of pump barrel, and this is to reduce The big reason of the one of pump, above the how many gap length with pump of the amount of oozing back and plunger, pressure is not of uniform size is directly proportional, the biggest pressure in gap Power is the biggest, and the amount of oozing back is the biggest.The liquid oozed back by the gap of plunger with pump barrel, produces atomization under high pressure effect, fast Speed is full of the negative pressuren zone of plunger bottom, forms vapour lock and blocks up, and in occupying oil well pump, space pump efficiency is along with reduction, finally affects oil field Annual production.

Utility model content

The purpose of this utility model is the deficiency existed for prior art, it is provided that a kind of oil-well pump of oil well increasing row helps and takes out dress Put.

To achieve the above object, the method that this utility model uses is: a kind of oil-well pump of oil well increases row and helps picking device, Including the row's of helping cylinder, upper extension bar, lower extension bar, layering cylindrical tube, balance guide pillar, positive stop lug boss, floating disk, perforation of sliding, determine Circle of position platform, coil tension spring, lower discharge orifice, upper discharge orifice, mistake flow through hole；The outer ring cylinder of the described row's of helping cylinder and oil well pump place oil Well tubular wall contact seals, and is provided with extension bar in the center, upper surface of the row's of helping cylinder, and sucker rod connects, lower surface centre bit Having installed lower extension bar, and the plunger rod of oil well pump connects, described layering cylindrical tube is positioned at the inner chamber of the row's of helping cylinder, upper and lower end face With the fixing connection in inner chamber upper and lower end face of the row's of helping cylinder, it is being layered the row's of helping cylinder bore upper and lower end face that cylindrical tube endoporus is limited It is provided with balance guide pillar, the upper and lower side of balance guide pillar and the vertical fixing connection in inner chamber upper and lower end face of the row's of helping cylinder, balances guide pillar Within resonator end surface center be round dot, decussation equidistant arrangement, balance guide pillar upper end be provided with positive stop lug boss, described is floating Dynamic disk is positioned at layering cylindrical tube endoporus, and outer ring cylinder contacts sealing with layering cylindrical tube, is provided with on the end face of floating disk Perforation of sliding comes and balance guide pillar is connected, and perforation of sliding is corresponding with the position of balance guide pillar, and slide relative to one another sealing, institute The positioning round table stated lays respectively at center, lower surface and center, the row's of helping cylinder bore lower surface, the institute of floating disk The lower end of the coil tension spring stated and positioning round table coordinate, and are fixedly connected on the inner chamber lower surface of the row's of helping cylinder, upper end and floating The lower surface contact of disk connects, and is provided with lower discharge orifice in the lower semisection position of the tube wall of layering cylindrical tube, and upper semisection position is provided with Upper discharge orifice, the end face of inner chamber up and down at the row's of helping cylinder was provided with and flowed through hole, crossed the interior alveolus flowing through pore size distribution in layering cylindrical tube Territory.

As preferably, the height of described positive stop lug boss is less than the height of upper discharge orifice.

As preferably, the height of described lower discharge orifice is less than the upper surface height under coil tension spring naturalness.

Beneficial effect

The structural principle of this utility model device is simple, by the floating disk set in the upper end of oil well pump and the row's of helping circle Cooperation between Tong so that it is synchronize to produce in downside negative pressure region during up, offsets the negative of oil well pump self generation The upper end infiltration that pressure causes, omnidistance mate-assist is the most efficient.

Accompanying drawing explanation

Fig. 1 this utility model apparatus structure schematic diagram；

Wherein, 1-help row cylinder, the upper extension bar of 2-, 3-under extension bar, 4-layering cylindrical tube, 5-balance guide pillar, 6-positive stop lug boss, Under 7-floating disk, 8-slip perforation, 9-positioning round table, 10-coil tension spring, 11-, discharge orifice, the upper discharge orifice of 12-, 13-cross and flow through hole.

Detailed description of the invention

Below in conjunction with the accompanying drawings and specific embodiment, being further elucidated with this utility model, the present embodiment is with this utility model Implement under premised on technical scheme, it should be understood that these embodiments are merely to illustrate this utility model rather than limit this reality By novel scope.

A kind of oil-well pump of oil well as shown in Figure 1 increases row and helps picking device, including the row's of helping cylinder 1, upper extension bar 2, lower extension bar 3, Layering cylindrical tube 4, balance guide pillar 5, positive stop lug boss 6, floating disk 7, slip perforation 8, positioning round table 9, coil tension spring 10, dirty Hole 11, upper discharge orifice 12, mistake flow through hole 13.

The outer ring cylinder of the row's of helping cylinder 1 contacts sealing with oil well pump place oil well tube wall, in the upper surface of the row's of helping cylinder 1 Heart position is provided with extension bar 2, and sucker rod connects, and center, lower surface is provided with lower extension bar 3, and the plunger rod of oil well pump is even Connect.

Layering cylindrical tube 4 is positioned at the inner chamber of the row's of helping cylinder 1, and the inner chamber upper and lower end face of upper and lower end face and the row's of helping cylinder 1 is fixed Connect, the row's of helping cylinder 1 inner chamber upper and lower end face that layering cylindrical tube 4 endoporus is limited is provided with balance guide pillar 5, balances guide pillar 5 Upper and lower side vertical with the inner chamber upper and lower end face of the row of helping cylinder 1 fixing connect, within balance guide pillar 5, resonator end surface center is round dot, Decussation equidistant arrangement, balance guide pillar 5 upper end be provided with positive stop lug boss 6, the height of positive stop lug boss 6 be less than upper discharge orifice 12 Height, primarily to prevent sucker rod is descending when, the upper discharge orifice 12 of floating disk 7 blocking.

Floating disk 7 is positioned at layering cylindrical tube 4 endoporus, and outer ring cylinder contacts sealing, at floating disk with layering cylindrical tube 4 The end face of 7 is provided with slip perforation 8 and balance guide pillar 5 is connected, and perforation 8 of sliding is corresponding with the position of balance guide pillar 5, that This relative slipper seal.

Positioning round table 9 lays respectively at center, lower surface and the center, the row's of helping cylinder 1 inner chamber lower surface of floating disk 7 Position, lower end and the positioning round table 9 of coil tension spring 10 coordinate, and are fixedly connected on the inner chamber lower surface of the row's of helping cylinder 1, upper end and The lower surface contact of floating disk 7 connects, and is provided with lower discharge orifice 11, upper semisection in the lower semisection position of the tube wall of layering cylindrical tube 4 Position is provided with discharge orifice 12, and the height of lower discharge orifice 11, less than the upper surface height under coil tension spring 10 naturalness, is mainly Ensureing that lower discharge orifice 11 blocked by floating disk 7 sucker rod is up when, the end face of inner chamber up and down at the row's of helping cylinder 1 was provided with Flow through hole 13, excessively flow through hole 13 and be distributed in the cavity region of layering cylindrical tube 4.

Actual job when, sucker rod is up, and floating disk 7 stress is pressed downward against contracting compression spring 10 so that float The lower discharge orifice 11 of cylinder blocking of disk 7, now the lower surface of floating disk 7 completely encloses, in up middle generation negative pressure, herein Negative pressure produces power upwards to oil pump plunger piston, reduces infiltration.The when that sucker rod being descending, the lower surface of floating disk 7 is subject to Power is up, until contact positive stop lug boss 6, now goes up discharge orifice 12 and connects with lower discharge orifice 11, by the row's of helping cylinder 1 and layering cylindrical tube 4 annular chambers formed cross stream.

Claims (3)

1. an oil-well pump of oil well increasing row helps picking device, it is characterised in that: include the row's of helping cylinder (1), upper extension bar (2), lower extension bar (3), layering cylindrical tube (4), balance guide pillar (5), positive stop lug boss (6), floating disk (7), slip perforation (8), positioning round table (9), coil tension spring (10), lower discharge orifice (11), upper discharge orifice (12), mistake flow through hole (13)；The outer loop pillar of the described row's of helping cylinder (1) Face contacts sealing with oil well pump place oil well tube wall, is provided with upper extension bar (2) in the center, upper surface of the row's of helping cylinder (1), and Sucker rod connects, and center, lower surface is provided with lower extension bar (3), and the plunger rod of oil well pump connects, described layering cylindrical tube (4) the fixing connection in inner chamber upper and lower end face of the inner chamber of the row's of helping cylinder (1), upper and lower end face and the row's of helping cylinder (1) it is positioned at, at layering circle The row's of helping cylinder (1) the inner chamber upper and lower end face that column jecket (4) endoporus is limited is provided with balance guide pillar (5), balances the upper and lower of guide pillar (5) Holding fixing connection vertical with the inner chamber upper and lower end face of row's of helping cylinder (1), within balance guide pillar (5), resonator end surface center is round dot, ten Word intersection equidistant arrangement, is provided with positive stop lug boss (6) in the upper end of balance guide pillar (5), and described floating disk (7) is positioned at layering circle Column jecket (4) endoporus, outer ring cylinder contacts sealing with layering cylindrical tube (4), is provided with slip perforation on the end face of floating disk (7) (8) coming and balance guide pillar (5) is connected, perforation (8) of sliding is corresponding with the position of balance guide pillar (5), slides relative to one another close Envelope, described positioning round table (9) lays respectively under center, lower surface and the row's of helping cylinder (1) inner chamber of floating disk (7) End face center, the lower end of described coil tension spring (10) and positioning round table (9) coordinate, and are fixedly connected on the row's of helping cylinder (1) Inner chamber lower surface on, upper end contacts connection with the lower surface of floating disk (7), in the lower half of tube wall of layering cylindrical tube (4) Fragment position is provided with lower discharge orifice (11), and upper semisection position is provided with discharge orifice (12), and the end face of inner chamber up and down at the row's of helping cylinder (1) is provided with Cross and flow through hole (13), excessively flow through hole (13) and be distributed in the cavity region of layering cylindrical tube (4).

A kind of oil-well pump of oil well the most according to claim 1 increases row and helps picking device, it is characterised in that: described positive stop lug boss (6) height is less than the height of upper discharge orifice (12).

A kind of oil-well pump of oil well the most according to claim 1 increases row and helps picking device, it is characterised in that: described lower discharge orifice (11) height is less than the upper surface height under coil tension spring (10) naturalness.