CN201771733U - Multi-section centering auto-rotation reducing tubing pump - Google Patents
Multi-section centering auto-rotation reducing tubing pump Download PDFInfo
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- CN201771733U CN201771733U CN2010202057995U CN201020205799U CN201771733U CN 201771733 U CN201771733 U CN 201771733U CN 2010202057995 U CN2010202057995 U CN 2010202057995U CN 201020205799 U CN201020205799 U CN 201020205799U CN 201771733 U CN201771733 U CN 201771733U
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Abstract
A multi-section centering auto-rotation reducing tubing pump is characterized in that an integral tubing is used as a center pump barrel, the pump barrel is provided with an upper joint and a lower joint, a plunger assembly is mounted in the pump barrel and consists of a group of reducing plunger units, each reducing plunger unit includes at least two stages, each stage of each reducing plunger unit is provided with an automatic reducing mechanism and an auto-rotation pushing mechanism, the automatic reducing mechanisms and the auto-rotation pushing mechanisms are sleeved on frameworks of the reducing plunger units at corresponding stages, automatic centering coupling bearings are respectively arranged between adjacent reducing plunger units, an upper thruster is arranged at the upper end of the plunger assembly, a rotator is in screwed connection with the upper thruster, an anti-collision mechanism is mounted at the upper end of the rotator and comprises an anti-collision mechanism, the anti-collision mechanism comprises an anti-collision rod, an anti-collision rod connector and an anti-collision block, a sand scarping cup is sleeved on the outer side of the anti-collision rod connector, a sand arrester is sleeved on the outer side of the upper end of the anti-collision block, and a sand control rotary hemisphere fixed valve assembly is arranged at the lower end of the plunger assembly.
Description
Technical field
The utility model relates to a kind of pumping well equipment, but refers to a kind of centering self-rotating reducer oil pipe pump especially.
Background technique
The used oil well pump of pumping production all is that the API standard is main rod pump, tube-separating type and rod-type both at home and abroad at present.Through the use over nearly 60 years, certain drawback that reflects: the middle and later periods oil recovery realistic well condition that has particularly arrived oil well, the pump of this structure can produce such as sand card, sand bury, many problems such as roofbolt disconnected takes off, beam hanger box cupling eccentric wear and valve leakage, generation come many inconvenience for the oil recovery factory, particularly because these faults cause the frequent maintenance operation of oil well, promptly having influenced output has increased operating cost again, make cost for oil production high, the waste funds, consumes energy, befouling environment.
Just because of this, model utility people's more than two decades is devoted to the R﹠D work of downhole pump, successively develop some radial plunger oil pumps, spinning plunger oil-well pump, energy storage type ball valve and rotation and take out bar box cupling etc., though in oil extraction operation, all play a role in these patented products, but still have unsatisfactory part, especially shake out in a large number at the oil well that latter period of oilfield development and polymer flooding oil-extraction caused, under the fouling situation, problems such as the descending resistance of meeting generation plunger is excessive, cause plunger fragile, produce the fault of frequent operation.
Summary of the invention
The purpose of this utility model provides a kind of multi-section centering self-rotating reducer oil pipe pump, and it has overcome the defective of prior art.
For achieving the above object, the utility model is taked following design proposal:
A kind of multi-section centering self-rotating reducer oil pipe pump, as the center pump barrel, this pump barrel has upper and lower joint by whole oil pipe, and plunger piston assembly is housed in the pump barrel; Described plunger piston assembly is made of one group of reducing plunger unit, and this group reducing plunger unit comprises two-stage at least, and each reducing plunger unit all has voluntarily diameter changing mechanism, from independently centering machine and the pushing mechanism of rotation voluntarily; These voluntarily diameter changing mechanisms, be set on the skeleton of respective stages reducing plunger unit from the pushing mechanism of independent centering machine and rotation voluntarily; The coupling bearing that self-aligning is arranged between the adjacent reducing plunger unit;
Thruster on the upper end of plunger piston assembly has, the last thruster rotor that is spirally connected again, anticollision mechanism is equipped with in the upper end of rotor, and this anticollision mechanism includes crash bar, crash bar joint and anti-collision block, one glass holder of strike-ofing is located at the outside of crash bar joint, is with sand device in the outside, upper end of anti-collision block; There is sand control to bury rotation hemisphere standing valve assembly in the lower end of plunger piston assembly.
Described diameter changing mechanism voluntarily is the reducing ring that is nested with on each reducing plunger unit skeleton, and this reducing ring constitutes by three single, radially sees to be three split lobes, and there is the overlap angle between 15～30 ° at the binding site place between each lobe, and the center constitutes skidway hole.
The skidway hole axis at described reducing ring center and plunger axis tapering angle.
In the reducing plunger unit at plunger piston assembly two ends, be provided with centering machine; Described centering machine is combined by the circle steel ball that at least 2 supports insert and put, and all steel ball circumference are divided equally.
Above-mentioned sand control buries rotation hemisphere standing valve assembly can adopt the utility model people's patent application technology (application number is 200910241559.2), its the secondary spring that can stop semispherical valve reaches the injury to the valve base sealing band, stop the dead angle of sand scale deposition simultaneously, effectively prolonged the working life of pump.
The utility model has the advantages that:
1) this pump can solve the insurmountable eccentric wear of present pumping well (the sucker rod modification causes the non-directional eccentric wear that its box cupling produces tubing wall) effectively and diminishes voluntarily when plunger is descending because of the reducing ring of this pump, reduced the descending resistance of plunger, the footpath of plunger is changed, avoided sucker rod distortion because of drag effects.
2) this pump pump efficiency height, because of the reducing ring of this pump when plunger is up and tubing wall be that no gap kiss connects, so lifting force is big, the drawing liquid amount is big, plunger more piece lifting rate is many in addition, the efficient height.
3) this pump can bury by sand control, its standing valve adopts the standing valve of anti-sand scale, solved the drawback that sand scale buries valve from oil input channel, there is anti-collision equipment its plunger upper end, rotation sand block mechanism is arranged on the anti-collision equipment, and at any time, sand scale all is difficult to enter in the pump chamber, the anti-collision block of overall plunger piston assembly upper end can ensure that plunger under any circumstance preserves from, all can proper functioning.
4) this pump using scope is wide, and horizontal well, inclined shaft and fouling, to contain the heavy well of sand all available, and conventional well is no problem more.
5) long service life.
6) conventional oil pipe is made pump barrel, and using scope is wide, more economical material benefit.
Description of drawings
Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 1 d are that (Fig. 1 a is a hypomere for the utility model multi-section centering self-rotating reducer oil pipe pump structure one embodiment's assembly schematic representation; Fig. 1 b is middle hypomere; Fig. 1 c is middle epimere; Fig. 1 d is an epimere).
Fig. 2 is the tail tube joint structural representation of present embodiment.
Fig. 3 buries rotation hemisphere standing valve assembly device structural representation for the present embodiment sand control.(the part figure among Fig. 1 a)
Fig. 4 buries the valve bonnet structural representation of rotation hemisphere standing valve for the present embodiment sand control.
Fig. 5 buries the semispherical valve structural representation of rotation hemisphere standing valve for the present embodiment sand control.
Fig. 6 buries the rotating plasma structural representation of rotation hemisphere standing valve for the present embodiment sand control.
Fig. 7 stirs sand device structural representation for what the present embodiment sand control buried rotation hemisphere standing valve.
Fig. 8 a buries the block structural representation (plan view) of rotation hemisphere standing valve for the present embodiment sand control.
Fig. 8 b buries the block structural representation (A-A is to sectional view among Fig. 8 a) of rotation hemisphere standing valve for the present embodiment sand control.
Fig. 9 a buries the limiting stopper structural representation (plan view) of rotation hemisphere standing valve for the present embodiment sand control.
Fig. 9 b buries the limiting stopper structural representation (side view) of rotation hemisphere standing valve for the present embodiment sand control.
Figure 10 is that Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 1 d integrate thruster structural representation under the plunger of the following reducing plunger unit in the illustrated embodiment.
Figure 11 is a thruster structural representation under the plunger of reducing plunger unit under the present embodiment.
Figure 12 is the valve ball valve seat construction schematic representation of reducing plunger unit under the present embodiment.
Figure 13 a is the first order skeletal structure schematic representation (plan view) of reducing plunger unit under the present embodiment.
Figure 13 b is the first order skeletal structure schematic representation (side-looking) of reducing plunger unit under the present embodiment.
Figure 14 a is the single part structural representation (main looking) of reducing ring of the present utility model.
Figure 14 b is the single part structural representation (section) of reducing ring of the present utility model.
Figure 14 c is the whole reducing ring structure schematic representation (main looking) of three root spare combinations of the utility model.
State generalized section when Figure 14 d opens for whole reducing ring shown in Figure 14 c.
Figure 14 e is state generalized section when whole reducing ring is closed shown in Figure 14 c.
Figure 15 a is awl Xiao modular construction schematic representation (axially) of reducing plunger unit under the present embodiment.
Figure 15 b is an A-A cross-sectional view among Figure 15 a.
Figure 16 a is the alignment bearing structural representation (main looking) of reducing plunger unit under the present embodiment.
Figure 16 b is the alignment bearing structural representation (A-A is to sectional view among Figure 16 a) of reducing plunger unit under the present embodiment.
Figure 17 is the structural representation that Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 1 d integrate the middle reducing plunger unit of illustrated embodiment.
Figure 18 a is the second level skeletal structure schematic representation (main looking) of reducing plunger unit in the present embodiment.
Figure 18 b is an A-A cross-sectional view among Figure 18 a.
Figure 19 a is awl Xiao structural representation (main looking) of middle reducing plunger unit in the present embodiment.
Figure 19 b is awl Xiao structural representation (side-looking) of middle reducing plunger unit in the present embodiment.
Figure 20 is awl Xiao bar linkage structure schematic representation of reducing plunger unit in the present embodiment.
Figure 21 is the thruster structural representation of reducing plunger unit in the present embodiment.
Figure 22 is the structural representation that Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 1 d integrate the last reducing plunger unit of illustrated embodiment.
Figure 23 a is a third level skeletal structure schematic representation (main looking) of going up the reducing plunger unit in the present embodiment.
Figure 23 b is an A-A sectional view among Figure 23 a.
Figure 24 is a thruster structural representation of going up the reducing plunger unit in the present embodiment.
Figure 25 be in the present embodiment in rotation coupling bearing structural representation between reducing plunger unit and last reducing plunger unit.
Figure 26 is that anticollision mechanism constitutes schematic representation in the present embodiment.
Figure 27 is the crash-proof pole structure schematic representation of anticollision mechanism in the present embodiment.
Figure 28 a is the crash bar joint structure schematic representation (main looking) of anticollision mechanism in the present embodiment.
Figure 28 b is the crash bar joint structure schematic representation (side-looking) of anticollision mechanism in the present embodiment.
Figure 29 a is the crashproof block structure schematic representation (side-looking) of anticollision mechanism in the present embodiment.
Figure 29 b is an A-A sectional view among Figure 29 a.
Figure 30 a is the cup structure schematic representation (main looking) of strike-ofing in the present embodiment.
Figure 30 b is the cup structure schematic representation (side-looking) of strike-ofing in the present embodiment.
Figure 31 a is sand device structural representation in the present embodiment (main looking).
Figure 31 b is a sand device structural representation (side-looking) in the present embodiment.
Figure 32 is selfaligning bearing structural representation in the present embodiment (main looking).
Figure 33 is selfaligning bearing shell structure schematic representation in the present embodiment (main looking).
Below in conjunction with drawings and the specific embodiments the utility model is described in further details:
Embodiment
By Fig. 1 a, Fig. 1 b, Fig. 1 c and four sections additive combination of Fig. 1 d is overall structure figure, shown in Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 1 d, the utility model multi-section centering self-rotating reducer oil pipe pump by whole oil pipe 16 as the center pump barrel, this pump barrel has upper and lower joint 45,12, thereby constitute the pump barrel inner chamber, sand control is housed in the pump barrel inner chamber from the bottom to top successively buries rotation hemisphere standing valve assembly device, one group of plunger piston assembly unit, go up thruster, rotor and anticollision mechanism.
Be to introduce structure of the present utility model from the bottom to top successively to constitute below:
Referring to Fig. 1 a, be bolted with a tail tube joint 1 in the outer end of pump barrel lower contact 12, the structure of this tail tube joint 1 can be referring to Fig. 2, and the internal thread that its connecting end has can be spirally connected with pump barrel lower contact 12.
The inner chamber that is arranged in tail tube joint 1 and lower contact 12 calmodulin binding domain CaMs is equipped with sand control and buries rotation hemisphere standing valve assembly device, and the formation that this sand control buries rotation hemisphere standing valve assembly device can include a valve bonnet 10, semispherical valve 6 and valve component 5 referring to Fig. 3.
The end cup 101 and tail tube joint 1 inwall of described valve bonnet 10 are spirally connected, and have one group of oil outlet 102 (3 for good) before the end cup, and valve bonnet is gradual shrinkage from the bottom to top, has upper connection bar 103 topmost; Referring to shown in Figure 4.
Described semispherical valve 6, valve component 5 place in the valve bonnet 10, and semispherical valve 6 is seated on the valve component 5, and its hemisphere bonnet zoarium by upper valve rod and bottom is made, and offer groove 61 (structure is referring to Fig. 5) in the bottom centre of hemisphere bonnet.
Another rotating plasma 3, its structure is referring to shown in Figure 6, and this rotating plasma 3 is constituted by the push rod of upper end and the spiral leaf slurry of lower end, and during the sand-proof fixed valve assembling, the push rod of rotating plasma 3 upper ends runs through valve seat and is inserted in the groove 61 that semispherical valve bottom centre offers, and rotatable drive semispherical valve 6 is advanced.The one adjusting centering unit of being made up of adjusting ball 7, adjusting axle 8 and energy storage spring 9 is pressed on semispherical valve 6 upper valve rods, and wherein energy storage spring is sheathed on the valve rod of semispherical valve, and 8 times head ends of adjusting axle have groove, and valve rod will be regulated ball 7 and withhold on semispherical valve 6.
One pressure cap 2 is arranged at the bottom that sand control buries rotation hemisphere standing valve assembly device, and rotating plasma 3, semispherical valve 6, valve component 5 and adjusting centering unit are installed in the valve bonnet 10.
One stirs sand device 13, its structure is referring to Fig. 7, this stirs the sand device and is constituted by the vane slurry 131 of upper end and the connecting sleeve 132 of lower end, the connecting sleeve of its lower end has middle part perforate 133, this connecting sleeve is sleeved on the upper connection bar 103 of valve bonnet, and is equipped with bearing 46, packing ring 47 and bearing 48 therebetween (referring to Fig. 1 a).
In the gap of valve bonnet 10 and tail tube joint 1 inwall, be equipped with anti-dead angle pad.
In regular turn stir sand device 13 above be equipped with a block 14 and limiting stopper 15.Described block 14 structures are referring to Fig. 8 (a) and Fig. 8 (b), and it can be one or three lobes (or more lobes) body.
Described limiting stopper 15 structures are referring to Fig. 9 (a) and Fig. 9 (b), and it can be one and draws the blocks in three lobes (or more lobes) hole 151.
Shown in Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 1 d is the embodiment of the utility model one representative structure, and the plunger piston assembly unit shown in the figure has adopted three grades of (upper, middle and lower) reducing plunger unit altogether.
Shown in Fig. 1 a, Fig. 1 b, the upper end of pump barrel lower contact 12 is connected with pump barrel 16, at the starting point that enters pump barrel 16, at first put (descending) the reducing plunger unit of having plenty of the first order, referring to Figure 10, comprise the reducing plunger unit framework that thruster 17 and is built on first order skeleton 21 under the plunger, wherein the intermediate cavity that forms behind the connecting sleeve fit by thruster 17 under the interior trepanning of the following head end of first order skeleton 21 and the plunger is built-in with valve ball valve seat unit.
The structure of thruster 17 is constituted by the vane slurry 171 of lower end and the connecting sleeve 172 of upper end referring to Figure 11 under this plunger, and the connecting sleeve of its upper end has the middle part perforate, and following head end gradual shrinkage is good.
Described valve ball valve seat unit is slightly different with the valve ball valve seat construction that above-mentioned sand control buries rotation hemisphere standing valve, and referring to Figure 12, the upper valve rod of its half valve ball 19 no longer is a direct rod shape, is stepped change, to adapt to the needs of connection.
The structure of first order skeleton 21 has its unique configuration referring to Figure 13 a, Figure 13 b, and the connecting sleeve 172 of interior trepanning 211 thruster 17 under plunger of following head end is linked in, and the valve ball valve seat unit that will have half valve ball 19 is interposed in wherein.
The of the present utility model one new point of creating is: be with a reducing ring 23 on first order skeleton (and subsequent second and third grade skeleton), the unique design one preferred embodiment structure of this reducing ring can be referring to Figure 14 a, Figure 14 b, Figure 14 c, Figure 14 d and Figure 14 e.Wherein, Figure 14 a is the plan view of single part; Figure 14 b is the side view of single part; The serve as reasons plan view of whole reducing ring of at least three root spares combination of Figure 14 c; Figure 14 d is whole reducing ring view when opening; Figure 14 e is the whole reducing ring of whole reducing ring view when closed, this reducing ring one-piece element is constituted by three single parts, radially see and be three split lobes, there is the overlap angle between 15～30 ° at the binding site place between each lobe, so that increase density, the overall dimensions difference of the overall dimensions when lobe is closed when opening is generally 5～10mm.The skidway hole axis of reducing ring one-piece element and plunger axis tapering angle.Groove on the reducing ring is built-in with the oil resistant cushion rubber.
For realizing that firm between reducing rings at different levels and skeletons at different levels is connected and the synchronous operation of reducing plunger unit at different levels, the utility model designs in reducing plunger unit separately certainly independently centering machine, wherein, awl Xiao Danyuan 20 is oneself centering machines independently of the first order (descend) reducing plunger unit, its structure constitutes can be referring to Figure 15, the center hole 201 of its thin rod end entangles on the upper valve rod of half valve ball 19 of the first order (descending) reducing plunger unit and realizes connecting, and has one group on its bar than butt end and is used to Xiao hole of realizing being connected with the reducing ring.23 on reducing ring can be fixedly sleeved with first order skeleton 21 by awl Xiao 20.
Appropriate position on skeleton A also is provided with one group of centering machine 22, its concrete formation can be referring to Figure 16 a, Figure 16 b, at the plunger piston assembly two ends centering machine is arranged, this centering machine is combined by the circle steel ball that at least 2 supports insert and put, all steel balls answer circumference to divide equally, during work, rely on the internal diameter and the external diameter of steel ball assembly to play the centering effect, make the axis rotation of plunger along oil pipe.Described steel ball quantity is no less than 6.
Referring to Fig. 1 b, Fig. 1 c and shown in Figure 17, the first order of the present embodiment that continues (descending) reducing plunger unit latter linked be the second level (in) the reducing plunger unit.Wherein: also by main body framework (second level skeleton) 24, the semispherical valve 26 that has energy storage spring 30, thruster 27, form from centering machine independently and the reducing ring 23 that is enclosed within on the skeleton of the second level.
Figure 18 show the second level (in) structural representation of second level skeleton 24 in the reducing plunger unit.
In like manner, being enclosed within reducing ring 23 on the skeleton of the second level, can independently to bore Xiao 28 by one fixedly sleeved with second level skeleton 24, awl Xiao's 28 structure can be referring to shown in Figure 19, have an axis hole on awl Xiao 28, insert respectively in the axis hole that has on the hemisphere of awl Xiao 28 axis hole and semispherical valve 26 at the two ends of awl Xiao's connecting rod 29 (referring to Figure 20), realizes the interlock of parts up and down.
The second level (in) structure of thruster 27 in the reducing plunger unit constitutes can be referring to shown in Figure 21.
Referring to Fig. 1 c, Fig. 1 d and shown in Figure 22, the second level of the present embodiment that continues (in) reducing plunger unit latter linked be the third level (on) the reducing plunger unit.Be analogous to first order reducing plunger unit; Wherein: also form by main body framework (third level skeleton) 35, semispherical valve, thruster 34 and the reducing ring that is enclosed within on the third level skeleton, the third level (on) the reducing plunger unit is higher level's of the present utility model reducing plunger unit, includes two upper and lower semispherical valve unit and auxiliary thruster.
Figure 23 show the third level (on) structural representation of third level skeleton 35 in the reducing plunger unit.
The third level (on) structure of thruster 34 in the reducing plunger unit constitutes can be referring to shown in Figure 24.
About the third level (on) semispherical valve in the reducing plunger unit, thruster 34, from centering machine independently and be enclosed within on the third level skeleton the reducing ring this repeat no more.
Two adjacent inter-stages can adopt the rotation coupling bearing of one group of self-aligning, for example among Fig. 1 b and Fig. 1 c, realize docking both associating by rotation coupling bearing 31 between the reducing plunger unit of the second level (in) reducing plunger unit and the third level (on), structure of this rotation coupling bearing 31 is referring to shown in Figure 25.
Certainly, the plunger piston assembly unit can also adopt reducing plunger unit not at the same level as required, as adopt 2 grades, 4 grades, 5 grades or more multistage or the like, but to comprise the upper and lower level part shown in the foregoing description at least, and reducing plunger unit at different levels all should have voluntarily diameter changing mechanism, from independently centering machine and the pushing mechanism of rotation voluntarily; The coupling bearing that self-aligning is arranged between the adjacent reducing plunger unit.
In the present embodiment, partly be added with rotor at the epimere of plunger piston assembly, anticollision mechanism is equipped with in the upper end of rotor, referring to Figure 26, this anticollision mechanism includes crash bar 41, crash bar joint 38 and anti-collision block 42, and the structure of crash bar 41, crash bar joint 38 and anti-collision block 42 can be referring to Figure 27, Figure 28 a, Figure 28 b, Figure 29 a and Figure 29 b.
One cup of strike-ofing 39 is set in crash bar 38 outsides, and outer gusset is equipped with sand device 43 in the upper end of anti-collision block 42, and sand device 43 is equipped with cap 44 by one and presses the stage place of putting preventing collision block 42 upper ends.Strike-off cup 39 structure referring to Figure 30, and the structure of sand device 43 is referring to Figure 31.
Realizing feeling relieved by selfaligning bearing 36, selfaligning bearing shell 37 between rotor on the plunger piston assembly epimere part and anticollision mechanism is connected, and the structure of this selfaligning bearing 36, selfaligning bearing shell 37 is referring to Figure 32, Figure 33.
The various embodiments described above can not break away under the scope of the present utility model in addition some variations, thus above explanation comprises and accompanying drawing shown in structure should be considered as exemplary, but not in order to limit the protection domain that the utility model is applied for a patent.
Working principle of the present utility model:
A) when plunger is up, standing valve is opened, stoste enters the oil pipe pump chamber, sinks under the effect of turnover fuel tap stoste in oil-line pump of each segmented column plug and under the effect of deadweight, and the result that ball valve sinks forces ball valve descending, descending nitre returns and makes the reducing ring along radially opening, this is the track that designs in advance, up to pressing close to tube wall, makes tubing wall and reducing ring become contacting of formula continuously, the stoste in oil pipe chamber is elevated, and each segmented column plug is not always the case.
B) when plunger is descending, this moment, standing valve cut out, the turnover fuel tap ball of each joint of plunger in the former chamber of oil pipe is washed open, along with each segmented column plug under the effect of the descending thruster of plunger stoste resistance in oil pipe rotates descending voluntarily, it is up that the interior stoste of plunger cavity this moment promotes ball valve, and the awl Xiao Shanghang under the drive ball valve, awl Xiao Shanghang forces the reducing ring to diminish along the radial contraction external diameter to make plug smoothly down long.
The descending change of plunger diminishes through ring and increases not according to the gap of touching tubing wall and tubing wall, makes plunger descending smoothly, reduces the probability that exhausted rod collar and tubing wall produce eccentric wear.
It is big that the up reducing ring of plunger becomes, up to take out tube wall and be split into continuously kiss and connect that the stoste in the former chamber elevates to greatest extent oil pipe, so high pump efficiency is arranged.
C) each segmented column centering machine beyond the Great Wall all changes when plunger is up, when plunger is descending is to change from small to big up to contacting with tube wall, and the purpose that contacts this mechanism design up to the discord tubing wall from large to small when descending makes the plunger beginning keep the operation of oil-line pump center exactly.
D) selfaligning bearing in the middle of each segmented column plug all has certain angle of swing, the purpose of this structure be make each segmented column plug can both be in oil-line pump smooth and easy operation pumping crude oil.
E) anti-collision equipment of plunger upper end is that the whole plunger of protection at any time can proper functioning.
The function of the utility model multi-section centering self-rotating reducer oil pipe pump is:
Standing valve was opened when 1, plunger was up, and stoste enters pump chamber, and the turnover fuel tap of every segmented column plug autoshutdown under the stoste effect, diameter changing mechanism expand and become big, reduce ring and leak, and improve pump efficiency.
2, when plunger was descending, standing valve cut out, the opening into and out of the fuel tap ball of every segmented column plug. Along with plunger is descending, under the impact of thruster stoste in oil pipe, every segmented column plug autorotation is descending. Diameter changing mechanism shrank and diminished this moment, reduced the plunger friction in down stroke, and is smoothly descending, reduces rod sag, eliminates rod tube non-directional eccentric wear.
3, each segmented column centering machine beyond the Great Wall keeps plunger along the vertical axis fast rotational under the promotion of thruster, eliminates eccentric wear in the tube, reaches Fluid Sealing, plays and takes the effect that sand is taken dirt.
4, anti-sand scale energy storage hemisphere standing valve, up when plunger, semisphere valve is opened, and compressed energy-storage device, liquid flow to into the raft chamber and promote to stir the rotation of sand device, make liquid stream rotate into pump chamber. When plunger was descending, semisphere valve fast rotational under the effect of accumulator and tail slurry was closed, and eliminated the ball seat injury, reduced trip loss, improved pump efficiency. Can use at high angle hole and horizontal well production. Simultaneously anti-dead angle ring, flow diverter and the rotating plasma in the valve pocket eliminated the heavy and sand of the sand of standing valve and buried.
5, the anticollision device, collision-prevention device of plunger upper end guarantees that in oil recovery process the plunger bottom can not contact with standing valve in any case, causes the bump injury. The sand device at anticollision device, collision-prevention device top prevents that the sand scale that enters oil pipe from passing back into pump barrel.
6, utilize the oil pipe of inner surface special disposal to make pump barrel, can effectively increase discharge capacity, improve output.
Claims (6)
1. multi-section centering self-rotating reducer oil pipe pump, as the center pump barrel, this pump barrel has upper and lower joint by whole oil pipe, and plunger piston assembly is housed in the pump barrel; It is characterized in that: described plunger piston assembly is made of one group of reducing plunger unit, this group reducing plunger unit comprises two-stage at least, reducing plunger unit at different levels all have the diameter changing mechanism and the pushing mechanism of rotation voluntarily voluntarily, these voluntarily diameter changing mechanism and the pushing mechanism that rotates voluntarily be set on the skeleton of respective stages reducing plunger unit; The coupling bearing that self-aligning is arranged between the adjacent reducing plunger unit; Thruster on the upper end of plunger piston assembly has, the last thruster rotor that is spirally connected again, anticollision mechanism is equipped with in the upper end of rotor, and this anticollision mechanism includes crash bar, crash bar joint and anti-collision block, one glass holder of strike-ofing is located at the outside of crash bar joint, is with sand device in the outside, upper end of anti-collision block; There is sand control to bury rotation hemisphere standing valve assembly in the lower end of plunger piston assembly.
2. multi-section centering self-rotating reducer oil pipe pump according to claim 1 is characterized in that: be provided with centering machine in the reducing plunger unit at plunger piston assembly two ends.
3. multi-section centering self-rotating reducer oil pipe pump according to claim 2 is characterized in that: described centering machine is combined by the circle steel ball that at least 2 supports insert and put, and all steel ball circumference are divided equally.
4. multi-section centering self-rotating reducer oil pipe pump according to claim 3 is characterized in that: described steel ball quantity is no less than 6.
5. multi-section centering self-rotating reducer oil pipe pump according to claim 1, it is characterized in that: described diameter changing mechanism voluntarily is the reducing ring that is nested with on each reducing plunger unit skeleton, this reducing ring constitutes by three single at least, radially see and be three split lobes, there is the overlap angle between 15～30 ° at the binding site place between each lobe, and the center constitutes skidway hole.
6. multi-section centering self-rotating reducer oil pipe pump according to claim 5 is characterized in that: the skidway hole axis at described reducing ring center and plunger axis tapering angle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202057995U CN201771733U (en) | 2010-05-20 | 2010-05-20 | Multi-section centering auto-rotation reducing tubing pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202057995U CN201771733U (en) | 2010-05-20 | 2010-05-20 | Multi-section centering auto-rotation reducing tubing pump |
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| CN201771733U true CN201771733U (en) | 2011-03-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858332A (en) * | 2010-05-20 | 2010-10-13 | 姚尔强 | Multi-section centering self-rotating reducer oil pipe pump |
| CN104632593A (en) * | 2015-01-08 | 2015-05-20 | 新乡市乔山机械设备有限公司 | Plunger oil well pump |
| CN109723630A (en) * | 2018-03-29 | 2019-05-07 | 大连坤麟金属制品有限公司 | A kind of rotary variable-diameter sealing oil-sucker |
-
2010
- 2010-05-20 CN CN2010202057995U patent/CN201771733U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858332A (en) * | 2010-05-20 | 2010-10-13 | 姚尔强 | Multi-section centering self-rotating reducer oil pipe pump |
| CN101858332B (en) * | 2010-05-20 | 2013-05-15 | 姚尔强 | Multi-section centering self-rotating reducer oil pipe pump |
| CN104632593A (en) * | 2015-01-08 | 2015-05-20 | 新乡市乔山机械设备有限公司 | Plunger oil well pump |
| CN109723630A (en) * | 2018-03-29 | 2019-05-07 | 大连坤麟金属制品有限公司 | A kind of rotary variable-diameter sealing oil-sucker |
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