CN207033700U - Plunger pump and extracting device of oil - Google Patents

Abstract

A kind of plunger pump and the extracting device of oil using the plunger pump are the utility model is related to, the plunger pump includes housing, and housing has drain side and cylindrical pump chamber, and at least one inlet is offered in housing sidewall, and housing sidewall is interior formed with apocenosis passage；Coaxial be embedded with can be around the rotor block that own axes rotate in housing, formed with least one through hole for being used to be directed to the liquid of inlet side in apocenosis passage in rotor block, a plunger is slidably equipped with each through hole, the axis of each plunger is vertical with the axis of rotor block.The plunger pump structure that the present embodiment provides is simple, and equipment cost is cheap；During applied to recovering the oil, because diameter of plunger is small, liquid displacement is low, if reduce the rotary speed of rotor block, discharge capacity can be also further reduced, therefore disclosure satisfy that conventional oil field and the oil recovery discharge capacity of low permeability oil and gas field and the requirement of lift, can preferably adapt to the demand of the small onshore oil field of Liquid output.

Description

Plunger pump and extracting device of oil

Technical field

The utility model belongs to technical field of oil extraction equipment, and in particular to a kind of plunger pump and the oil recovery using the plunger pump Device.

Background technology

Mechanical oil recovery is the mode for oil being produced with mechanical energy ground.At present, main mechanical oil production model has oil pumping Motor-pumped well is recovered the oil, electric submersible centrifugal pump well recovers the oil and surface drive screw pump wells are recovered the oil.

(1) fine strain of millet formula pumping production system is swum

Trip fine strain of millet formula pumping production system is made up of ground pumping unit system and the part of underground pumping system 2, is oil field Main oil production equipment, usage quantity is big, and power consumption is big, and system effectiveness is low, belongs to typical " low load with strong power ".

China's beam pumping unit producing well accounts for more than the 90% of production well sum more than 200,000 mouthfuls, is the master in oil field Oil production equipment is wanted, and system effectiveness average operating efficiency is only 26%, belongs to typical " low load with strong power ", energy consumption has accounted for oil field / 3rd of energy consumption, the annual power consumption electricity in the whole nation exceed 10,000,000,000 kilowatt hours.Because electric motor starting torque is small, and beam pumping unit Larger detent torque band dynamic balance weight is needed, the power of motor of matching is than big 2 of power needed for normal operation after oil pumper startup etc. More than level, and load-rate of motor is only 40% or so during normal operation；Further, since pumped with the underground of oil pumper associated working The alternating change of pump load causes ground system operating unbalance, exacerbates the reactive power consumption of dynamical system, causes oil pumping system Fallback, cause huge energy waste.The power that motor provides when balanced ratio is 100% is only used for lifting 1/2 Fluid column weight and overcome frictional force etc..Oil pumper ground system is made up of motor, belt pulley, decelerator and quadric chain.Look into Relevant mechanical engineering manual, because oil pumper load is uneven, motor maximal efficiency reaches 80%, belt pulley+decelerator effect Rate is 82%, and quadric chain efficiency is 95%, and ground system maximal efficiency is 62%；Packing box efficiency is 90%, sucker rod Efficiency is 90%, and the oil pumping efficiency of pump is 80%, and oil pipe column efficiency is 95%, and underground pumping system maximal efficiency is 62%；Entirely Beampumping unit system maximal efficiency only has 38.4%.Domestic each oilfield pumping well system effectiveness is mainly distributed on 20% at present Between~30%, Daqing oil field average out to 28%, Shengli Oil Field average out to 25%, Changqing oilfields average out to 20%.Oil pumping function Consumption has accounted for 1/3rd of oil field energy consumption.From the point of view of each oil field computer collecting system data analysis of CNPC in 2014, oil field machine, which is adopted, is System total power consumption accounts for 50% or so of oil field business total power consumption.

(2) screw pump Lifting Technique

Screw pump is made up of stator and rotor, and the transmission to medium is realized by the rotary motion of rotor.Screw rod pump configuration Simply, small volume, in light weight, little power consumption, efficiency high.Because elastomer stator limits, lift is small, can not take out deeply.It is most of at present Field application is the well in well depth 1000m or so.

(3) submersible electric pump oil extraction system

Submersible electric pump is also known as electric submersible centrifugal pump, mainly by centrifugal multistage pump multiple centrifugal pump, separator, protector and submersible electric machine with oil group Into it is big to be mainly characterized by discharge capacity, is best suited for middle and high Water-cut Period and recovers the oil, and manages conveniently.Submersible electric pump oil extraction system is in state Inside and outside field use is more and more extensive, and major defect is that depth of setting is limited by power of motor, the centrifugal pump that 2000 meters of lift Up to 20 meters, equipment is expensive, and initial investment is high；Regular maintenance requires high；Method normal work is there is no for 4000 meters of ultra-deep liftings.

There are large area heavy losses in the second half year in 2014, international oil price slump, China oil field, and domestic each oil field exists Try every possible means cost efficiency, many stripper wells are forced to close down without benefit.In addition, continually developing with petroleum resources, exploitation Reservoir depth increases year by year, and the rapid rising of Cut of Oilfield, exploiting economy benefit declines year by year, and old block answers timing changing to adopt Oily mode, the economic exploitation phase in oil field could be extended, how new block selects optimal artificial lifting way, obtains oil field bigger Economic benefit, be the major issue that enterprise faces.

In summary, existing three kinds main machine mining methods can not meet the needs of economic development, and urgent need allows running cost Maintain lower level new oil production method.

Utility model content

The utility model embodiment is related to a kind of plunger pump and the extracting device of oil using the plunger pump, can at least solve existing The segmental defect of technology.

The utility model embodiment provides a kind of plunger pump, including housing, and the wherein one end open of the housing forms row Liquid end, the housing have the pump chamber of cylinder, offers in the side wall of the housing and at least one is turned on the pump chamber Inlet, is also formed with apocenosis passage in the side wall of the housing, the apocenosis passage respectively with the pump chamber and the discharge opeing End conducting；Can be in the rotor block that own axes rotate, the rotor block formed with least in coaxial be embedded with the housing One is used to for the liquid of inlet side to be directed to through hole in the apocenosis passage, and one is slidably equipped with each through hole Individual plunger, the axis of each plunger is vertical with the axis of the rotor block, and each plunger, which is respectively connected with, drives it right Toward the drive mechanism of polyslip in the through hole answered.

As one of embodiment, each drive mechanism includes the first driving cog for being arranged in the through hole side Wheel, each first travelling gear are rotatably located at axial direction of in the rotor block and axial direction each parallel to the rotor block, Each plunger has first tooth-strip part with the corresponding first travelling gear engagement.

As one of embodiment, each drive mechanism also includes the second travelling gear, each second travelling gear Rotatably in the rotor block and axially each parallel to the axial direction of the rotor block, each drive mechanism it is described First travelling gear and second travelling gear are respectively in the corresponding through hole both sides, and each plunger also has pair Second tooth-strip part of second travelling gear engagement answered.

As one of embodiment, axial direction of each through hole along the rotor block is sequentially arranged at intervals, and each described first The equal coaxial package of travelling gear is on the first synchronising (connecting) rod, and each equal coaxial package of second travelling gear is in the second synchronising (connecting) rod On, the axial direction of first synchronising (connecting) rod and second synchronising (connecting) rod is axially in parallel with the rotor block.

As one of embodiment, each drive mechanism is each equipped with being used to make corresponding first travelling gear and institute State the unidirectional driving unit that the switching of the second travelling gear is driven work.

As one of embodiment, the unidirectional driving unit includes two synchromesh gears and a tumbler gear, wherein one The synchromesh gear and the corresponding first travelling gear coaxial package on a drive link, another synchromesh gear with it is right The the second travelling gear coaxial package answered is on another drive link；The tumbler gear is fixedly installed in the housing, And its wheel rim includes that the with teeth section of root circle half can be less than with teeth section of the corresponding two synchromesh gear engagements and radius Anodontia section of footpath.

As one of embodiment, each inlet is oppositely arranged with the apocenosis passage.

The utility model embodiment provides a kind of extracting device of oil, including plunger pump as described above, the drain side connection There is the oil pumping actuating unit for pumping and driving the rotor block to be rotated around own axes.

As one of embodiment, the oil pumping actuating unit includes submersible electric machine with oil, the joint of the submersible electric machine with oil with it is described Drain side is connected, and the motor shaft of the submersible electric machine with oil is connected with the rotor block.

As one of embodiment, the drain side is connected with oil pipe, and the oil pumping actuating unit includes ground motor and taken out Beam hanger, the sucker rod both ends respectively with the rotor block and the ground motor connection.

The utility model embodiment at least has the advantages that：The plunger pump structure that the present embodiment provides is simple, if Standby cost is cheap；During applied to recovering the oil, because diameter of plunger is small, liquid displacement is low, if reducing the rotary speed of rotor block, may be used also Discharge capacity is further reduced, therefore disclosure satisfy that conventional oil field and the oil recovery discharge capacity of low permeability oil and gas field and the requirement of lift, can be compared with The demand of the small onshore oil field of Liquid output is adapted to well, is solved to use high energy consumption existing for the latent centrifugal pump of electricity in the prior art, is raised The problems such as journey is low, initial investment is big, oil and gas development cost is high and using trip fine strain of millet formula pumping production system existing for efficiency it is low, The problems such as high energy consumption, high oil and gas development cost.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation for the plunger pump that the utility model embodiment one provides；

Fig. 2 is the sectional view of A-A in Fig. 1；

Fig. 3 is the sectional view of B-B in Fig. 1；

Fig. 4 a~e are that unidirectional driving unit compares schematic diagram with the action of plunger in the plunger pump course of work that Fig. 1 is provided；

Fig. 5 is the structural representation for the extracting device of oil that the utility model embodiment one provides.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The all other embodiment obtained, belong to the scope of the utility model protection.

Embodiment one

Such as Fig. 1-Fig. 3, the utility model embodiment provides a kind of plunger pump 1, including housing 101, and the housing 101 has circle The pump chamber of cylindricality, that is, have and enclosed by cylindrical annular inwall and set the pump chamber formed, usually, above-mentioned housing 101 uses hollow circle Cylindrical shell 101, it is of course also possible to use the housing 101 of the shape such as cuboid.The wherein one end open of the housing 101 is formed Drain side, what its other end can be that closing sets can also be that opening is set, according to actual demand respective design；This In embodiment, the both ends open of housing 101, wherein one end are drain side, and the other end can connect corresponding equipment as needed. Such as Fig. 1-Fig. 3, at least one inlet 103 turned on the pump chamber, the housing are offered in the side wall of the housing 101 Apocenosis passage 104 is also formed with 101 side wall, the apocenosis passage 104 turns on the pump chamber and the drain side respectively； Can be in the rotor block 102 that own axes rotate, the rotor block 102 formed with extremely in coaxial be embedded with the housing 101 Lack a through hole for being used for drain, a plunger 105, the axis of each plunger 105 are slidably equipped with each through hole Vertical with the axis of the rotor block 102, each plunger 105 is respectively connected with driving, and it is past in the corresponding through hole The drive mechanism of polyslip.Wherein, the quantity of above-mentioned inlet 103 and dimensions etc. can be entered according to actual use situation etc. Row design, such as using single bigbore inlet opening or use multiple small-bore inlet openings.Above-mentioned through hole is used for will The liquid of the side of inlet 103 is directed in apocenosis passage 104, and to realize this function, the quantity of through hole and position, which preferably correspond to, to be set Put, in rotor block 102 in own axes rotary course, each through hole can be with wherein at least one inlet 103 at least Part face connection, and connected with least part face of apocenosis passage 104, so that the liquid entered via inlet 103 can Into in through hole, then it is directed into apocenosis passage 104；It is embodied in structure, along the axial direction of rotor block 102, each inlet The distance between 103 and bleed port are a zone distance value, and the distance between each through hole and drain side are also a section Distance value, the zone distance value corresponding to each inlet 103 and the zone distance value corresponding at least one of which through hole At least partially overlap and (do not include an only endpoint value identical situation)；It is each so that above-mentioned housing 101 is vertically arranged as an example Height (horizontal plane in other words) where the upper end of inlet 103 and/or lower end should be located in one of the upper and lower ends of through hole Between the height (horizontal plane in other words) at place.In the present embodiment, above-mentioned each inlet 103 is preferably to be opened along the radial direction of housing 101 If inlet opening or lead channel (i.e. with the curvature identical deep-slotted chip breaker of housing 101)；Above-mentioned each through hole is preferably along rotor block 102 The through hole radially opened up, and the axis of the axis of through hole and rotor block 102 intersect vertically.Above-mentioned apocenosis passage 104 is preferred To be the sump pit correspondingly opened up on the inwall of housing 101, a plurality of discharge opeing conduit of the axial direction of housing 101 can be parallel to, Can be a complete curved channel, each sump pit is preferably that extension is opened up to drain side, outside each sump pit and rotor block 102 It can be enclosed between wall and set to form an exhaust chamber；Certainly, above-mentioned apocenosis passage 104 can also be formed at the liquid in the wall of housing 101 Body runner, corresponding that at least one outage turned on flow channel for liquids need to be opened up on the inwall of housing 101, the setting of outage is then The set-up mode of each inlet 103 is referred to, such as can and one by one face setting identical with the quantity of inlet 103.Undoubtedly free burial ground for the destitute, The length of each plunger 105 is less than the length of corresponding through hole.In the rotation process of rotor block 102, each through hole can be periodically Ground turns on corresponding inlet 103, and liquid enters in each through hole via inlet 103, and being slided by plunger 105 to concede Space is to accommodate liquid, then the side for storing liquid and the apocenosis passage 104 of each through hole are rotated by rotor block 102 Conducting, the liquid in through hole is pushed into apocenosis passage 104 by the activity of plunger 105, realizes pumping out for liquid.This implementation The plunger pump 1 that example provides is simple in construction, and equipment cost is cheap；During applied to recovering the oil, because the diameter of plunger 105 is small, liquid displacement It is low, if reducing the rotary speed of rotor block 102, discharge capacity can be also further reduced, therefore disclosure satisfy that conventional oil field and hyposmosis The oil recovery discharge capacity of oil gas field and the requirement of lift, the demand of the small onshore oil field of Liquid output can be preferably adapted to, solves existing skill In art using high energy consumption existing for the latent centrifugal pump of electricity, lift is low, initial investment is big, oil and gas development cost is high the problems such as and use The problems such as swimming low efficiency existing for fine strain of millet formula pumping production system, high energy consumption, high oil and gas development cost.

In above-mentioned plunger pump 1, the core component such as pump housing, through hole, plunger 105 is cylindrical component, during processing Very high class fit can be reached, rubbed between part small, there is volumetric efficiency height, smooth running, discharge uniformity is good, makes an uproar The advantages that sound is low, operating pressure is high.

Continue the structure of above-mentioned plunger pump 1, for the above-mentioned drive for being used to drive plunger 105 in through hole toward polyslip Motivation structure, there can be diversified forms, be driven such as by electric pushrod etc., the electric pushrod can be disposed adjacent in rotor block 102 It is interior, it is corresponding that a slide plate is installed in the side wall of plunger 105, chute is correspondingly opened up on the hole wall of through hole, the slide plate is slidedly arranged on It is connected in chute and with electric pushrod, drives slide plate to be slid along chute to drive plunger 105 in through hole by electric pushrod Interior sliding.In the present embodiment, above-mentioned drive mechanism is preferably by the way of gear driving, specifically, such as Fig. 1, each drive Motivation structure includes the first travelling gear 106 for being arranged in the through hole side, and each first travelling gear 106 can turn It is dynamic to have one in the rotor block 102 and axially each parallel to the axial direction of the rotor block 102, each plunger 105 Individual first tooth-strip part and engaged with corresponding first travelling gear 106.The teeth groove of first tooth-strip part is by the outer of plunger 105 Wall is formed to the inner recess of plunger 105, and the part wheel rim of the first travelling gear 106 is extended in corresponding through hole, further, should The distance between tooth top and the axis of plunger 105 of first tooth-strip part are smaller than the radius of plunger 105, to ensure the suitable of gear driving Smooth property；The length of above-mentioned first tooth-strip part is preferably less than the length of plunger 105, and is opened in the middle part of plunger 105, so as to The slide displacement of the first tooth-strip part is limited, and then limits the slide displacement of plunger 105, realizes accurate control.

Can be by driving the above-mentioned rotating of the first travelling gear 106 to realize the past polyslip of plunger 105, such as by can be just Motor of reversion etc. drives；In the present embodiment, it is further preferred that such as Fig. 1, each drive mechanism also includes the second transmission Gear 107, each second travelling gear 107 is rotatably in the rotor block 102 and axially each parallel to described turn The axial direction of daughter 102, first travelling gear 106 and second travelling gear 107 of each drive mechanism divide row In the corresponding through hole both sides, each plunger 105 also has the second tooth-strip part and is driven with corresponding described second Gear 107 engages.The design of second travelling gear 107 can use the design structure of the first above-mentioned travelling gear 106, herein It is omitted.The travelling gear 107 of first travelling gear 106 and second is preferably relative to the axis of 105 axis of plunger/rotor block 102 It is symmetrical arranged.The above-mentioned travelling gear 107 of first travelling gear 106 and second can coordinate the past polyslip for realizing plunger 105 jointly, The two can action direction and act on opportunity it is identical, that is, drive the first tooth-strip part to be moved in the same direction with the second tooth-strip part, also may be used Action direction on the contrary, realize " past " and " multiple " of plunger 105, now, the two answers timesharing to drive, and avoids causing equipment to damage respectively Wound.In the present embodiment, mode is planted after preferably using, correspondingly, each drive mechanism is each equipped with being used to make corresponding institute State the unidirectional driving unit that the first travelling gear 106 is driven work with second travelling gear 107 switching.

Can be the first travelling gear 106 and the second travelling gear 107 respectively by one for above-mentioned unidirectional driving unit Motor drives, and passes through the switch operating of two motors, you can realize the switching of the first travelling gear 106 and the second travelling gear 107 Work is driven, wherein when a travelling gear is driven work, corresponding another travelling gear connects motor and can inverted, and avoids Unnecessary torsion etc. is produced between travelling gear and motor shaft and causes equipment damage.In the present embodiment, using following Preferred structure：

Such as Fig. 1, the unidirectional driving unit includes two synchromesh gears 109 and a tumbler gear 108, wherein described in one Synchromesh gear 109 and the corresponding coaxial package of first travelling gear 106 are on a drive link, another synchromesh gear 109 with the corresponding coaxial package of second travelling gear 107 on another drive link；The tumbler gear 108 is fixedly mounted In in the housing 101, and its wheel rim include can engaging with corresponding two synchromesh gears 109 with teeth section and radius be less than Anodontia section of the with teeth section of root radius.Because tumbler gear 108 is fixed, synchromesh gear 109 is with rotor block Contacted in 102 rotation processes with teeth section of tumbler gear 108 and produce relative motion so that synchromesh gear 109 is made certainly simultaneously Transhipment is dynamic, and drives coaxially connected driving cog crop rotation spinning motion, and then drives plunger 105 to move.Above-mentioned with teeth section of institute is right The central angle answered preferably is not more than 180 °, avoids with teeth section while is contacted with two synchromesh gears 109；Such as Fig. 2-Fig. 3, what is shown is excellent Selecting in embodiment, the central angle corresponding to this with teeth section is 180 °, when its both ends contacts with two synchromesh gears 109 respectively, institute Corresponding is past/multiple stroke terminal of plunger 105, so as to which tumbler gear 108 has half the time to be and one of synchromesh gear 109 contacts, second half time is contacted with another synchromesh gear 109, ensures the reliability of commutation.First travelling gear 106 When being driven work, the second travelling gear 107 can rotate therewith under the drive of plunger 105, but due to now this Corresponding to the synchromesh gear 109 that two travelling gears 107 are connected is anodontia section, thus will not be between occurrence of equipment interference.

Further optimize the structure of above-mentioned plunger pump 1, such as Fig. 1, each through hole along the rotor block 102 axially according to Minor tick arranges, and on the first synchronising (connecting) rod 110, each described second is driven each first travelling gear, 106 equal coaxial package 107 equal coaxial package of gear is on the second synchronising (connecting) rod 111, first synchronising (connecting) rod 110 and second synchronising (connecting) rod 111 Axial direction it is axially in parallel with the rotor block 102.Wherein, the quantity of through hole namely plunger 105 is preferably several, to carry High efficiency；By the way that each travelling gear is concatenated, ensure the synchronism of drive actions, be on the one hand easy to control, energy consumption can be saved, separately On the one hand make it that liquid flow direction is consistent, improve operating efficiency, increase the pressure of the liquid pumped out.For above-mentioned unidirectional driving list The structure of member, each first travelling gear 106 can share a synchromesh gear 109, and each second travelling gear 107 can share a synchronous gear Wheel 109, you can be set with a synchromesh gear 109 on the first synchronising (connecting) rod 110 and the second synchronising (connecting) rod 111.Above-mentioned The upper and lower ends of one synchronising (connecting) rod 110 and the second synchronising (connecting) rod 111 can connect a thrust bearing 113, and each thrust bearing 113 is equal Preferably it is the ball of any surface finish；By setting thrust bearing 113, ensure two synchronising (connecting) rods installation knot in rotor block 102 Structure and the stability of rotational motion.

Further optimizing the structure of above-mentioned plunger pump 1, such as Fig. 1, above-mentioned rotor block 102 is in step axle construction, including for The linkage section and the rotor section in housing 101 being connected with outside power unit, it is attached that the linkage section may extend to drain side Closely；Further dividing plate can be set in the pump chamber of housing 101, the dividing plate is set close to drain side, pump chamber can be divided into feed liquor Section and pump out section, above-mentioned apocenosis passage 104 pumps out section with this and connected, this pump out section can play a part of cache pump out liquid, on State linkage section to be located on the dividing plate, rotor section is then in liquid input section.Further, in the stepped locations of rotor block 102 The settable alignment bearing 112 in place, alignment bearing 112 is can be set in the side of the remote drain side of rotor block 102, to ensure to turn Daughter 102 mounting structure and stability of rotational motion in housing 101.

It is further preferred that such as Fig. 1-Fig. 3, each inlet 103 is oppositely arranged with the apocenosis passage 104, its In, each inlet 103 is preferably axially to be arranged at intervals successively along rotor block 102, and apocenosis passage 104 is preferably then using above-mentioned The structure that sump pit is correspondingly opened up on the inwall of housing 101.By reasonably designing, revolution based on rotor block 102 with it is each Relative motion between the rotation of travelling gear so that liquid can be transported to apocenosis passage 104 by each through hole by inlet 103 It is interior；Specifically, such as Fig. 4, the course of work of this plunger pump 1 is illustrated with a specific embodiment：

So that housing 101 is vertically arranged as an example,

Such as Fig. 4 a, at the T0 moment, with teeth section of tumbler gear 108 touches with the rigid connection of synchromesh gear 1, with synchromesh gear 2 1092 start to depart from, and as synchromesh gear 1 rotates relative to tumbler gear 108, drive each first travelling gear 106 Generation rotation, and drive plunger 105 to start to be moved along a straight line from the first stroke end to the second stroke end, now one end of plunger 105 Contacted with the inwall of housing 101, through hole is not turned on inlet 103 and apocenosis passage 104；

Such as Fig. 4 b, to the T/4 moment, synchromesh gear 1 has moved quarter turn relative to tumbler gear 108, the One travelling gear 106 driving plunger 105 is moved among the first stroke end and the second stroke end, while the revolution of rotor block 102 makes Through hole both ends are obtained to turn on inlet 103 and apocenosis passage 104 respectively；The nothing of synchromesh gear 2 1092 and tumbler gear 108 Tooth section is corresponding, does not influence the motion of plunger 105；

Such as Fig. 4 c, to the T/2 moment, synchromesh gear 1 has moved 1/2 circumference relative to tumbler gear 108, i.e., The second stroke end will be moved to with teeth section of disengaging, the first travelling gear 106 driving plunger 105, now the one end of plunger 105 and shell The inwall of body 101 contacts, hydraulically full in the through hole between the other end and the inwall of housing 101, through hole and inlet 103 and row Liquid passage 104 is not turned on；And synchromesh gear 2 1092 touches with teeth section of rigid connection, will start to drive work, to drive plunger 105 start to be moved along a straight line from the second stroke end to the first stroke end；

Such as Fig. 4 d, to the T3/4 moment, synchromesh gear 2 1092 has moved quarter turn relative to tumbler gear 108, the Two travelling gears 107 driving plunger 105 is moved among the first stroke end and the second stroke end, while the revolution of rotor block 102 makes Obtain through hole both ends to turn on inlet 103 and apocenosis passage 104 respectively, through hole one end feed liquor, other end discharge opeing；

It is identical with to T/4 moment working conditions to the T moment such as Fig. 4 e.

So, by driving rotor block 102 to rotate, plunger 105 is also constantly done while being rotated with rotor block 102 Move back and forth, so that the liquid of the side of inlet 103, is constantly discharged to the side of apocenosis passage 104.

Embodiment two

The utility model embodiment provides a kind of extracting device of oil, including the plunger pump 1 that above-described embodiment one is provided, the post Here is omitted for the structure of plug pump 1, and the drain side is connected with for pumping and driving the rotor block 102 around own axes The oil pumping actuating unit of rotation.

Such as Fig. 5, as one of embodiment, the oil pumping actuating unit includes submersible electric machine with oil 5, and the submersible electric machine with oil 5 connects Head is connected with the drain side, and the motor shaft of the submersible electric machine with oil 5 is connected with the rotor block 102.Above-mentioned submersible electric machine with oil 5 and post The attachment structure for filling in pump 1 is that those skilled in the art are easily designed according to prior art, is no longer repeated one by one herein.

Embodiment three

The utility model embodiment provides a kind of extracting device of oil, including the plunger pump 1 that above-described embodiment one is provided, the post Here is omitted for the structure of plug pump 1, and the drain side is connected with for pumping and driving the rotor block 102 around own axes The oil pumping actuating unit of rotation.

Such as Fig. 1, as one of embodiment, the drain side is connected with oil pipe, and the oil pumping actuating unit includes ground electricity Machine and sucker rod 2, the both ends of sucker rod 2 respectively with the rotor block 102 and the ground motor connection., can be in shell such as figure The drain side coupling adapter 3 of body 101, to connected pipes, the other end of housing 101 can connect lower connector 4, to even Packer is connect, above-mentioned attachment structure is that those skilled in the art are easily designed according to prior art, is no longer repeated one by one herein.

The extracting device of oil provided for the above embodiments two and embodiment three, compared with existing machine mining method, have Following advantage：

(1) displacement range is good, covers existing beam pumping unit well and recovers the oil

Above-mentioned extracting device of oil displacement range can be controlled in 0.5m³/ d~45m³/ d, adapt to China's onshore oil field production requirement. China's land oil wells Liquid output is smaller, and the Liquid output of low permeability oil field is even less than 1m³/ d, is mainly adopted using beam pumping unit Oil, well number account for more than the 90% of production well sum more than 200,000 mouthfuls.It is special and the latent centrifugal pump of electricity is mainly used in high yield straight well Point is huge discharge (＞ 100m³/ d), low lift (＜ 1800m), application is smaller, it is impossible to substitutes beam pumping unit well.

In the present embodiment, by reducing the diameter of plunger 105, the rotary speed of the cavity of plunger 105 is reduced, can further be reduced Discharge capacity, meeting conventional oil field and the oil recovery discharge capacity of low permeability oil and gas field and the requirement of lift, solution system effectiveness is low, high energy consumption, The problem of oil and gas development costs such as initial investment is big are high.

(2) significantly save

Above-mentioned extracting device of oil electric energy almost all participates in lifting oil gas, and theoretical efficiency is up to 95%, with beam pumping unit Average operating efficiency is only 26% to compare, and gross efficiency improves 64%.China's onshore oil field beam pumping unit is more than 200,000 mouthfuls, year Power consumption exceedes 10,000,000,000 kilowatt hours, and new gear driving plunger pump 1, which substitutes trip fine strain of millet formula pumping production and is expected to save electric energy every year, to be surpassed Cross 6,400,000,000 kilowatt hours.

(3) service life is grown

The stable load of above-mentioned extracting device of oil, and carried by oil pipe, without protector as main support, work It is also better than electric latent centrifugal pump to make operating mode, in addition, extracting device of oil efficiency high, required Electric Submersible Motor Power is small, further increases Service life.By theoretical comparative analysis, the long lifespan of new pump saved a large amount of operation costs every year up to more than 9 years.

(4) cost is low, saves ground cost of erection and installation cost

The separate unit cost of plunger pump 1 is well below electric submersible centrifugal pump.The discharge capacity of electric submersible centrifugal pump is smaller, system effect Rate is lower, such as discharge capacity is 50m³/ d electric submersible pump efficiency is only 42%.And above-mentioned plunger pump 1 is applied, efficiency high is lifted up to 95% It is smaller than electric submersible centrifugal pump by 50% to rise the required power of motor of identical Liquid output, the short half of motor length；And above-mentioned plunger Pump 1 is not afraid of cavitation erosion, without separator；The above-mentioned length of plunger pump 1 is short more than centrifugal pump, single-stage plunger pump 1 (only one plunger 105) Length only 0.5m, and centrifugal pump length reaches 20m；

Above-mentioned extracting device of oil is used for the new well of a bite without huge ground installation and sapce charge.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in Protection domain within.

Claims (10)

1. A kind of 1. plunger pump, it is characterised in that：Including housing, the wherein one end open of the housing forms drain side, the shell Body has the pump chamber of cylinder, and at least one inlet turned on the pump chamber is offered in the side wall of the housing, described Apocenosis passage is also formed with the side wall of housing, the apocenosis passage turns on the pump chamber and the drain side respectively；In institute Stating coaxial be embedded with housing can be used to enter in the rotor block that own axes rotate, the rotor block formed with least one The liquid of liquid mouth side is directed to the through hole in the apocenosis passage, and a plunger, each institute are slidably equipped with each through hole It is vertical with the axis of the rotor block to state the axis of plunger, each plunger, which is respectively connected with, drives it in the corresponding insertion Toward the drive mechanism of polyslip in hole.
2. 2. plunger pump as claimed in claim 1, it is characterised in that：Each drive mechanism includes being arranged in the through hole First travelling gear of side, each first travelling gear is rotatably in the rotor block and axially each parallel to institute The axial direction of rotor block is stated, each plunger has first tooth-strip part with the corresponding first travelling gear engagement.
3. 3. plunger pump as claimed in claim 2, it is characterised in that：Each drive mechanism also includes the second travelling gear, Each second travelling gear is each rotatably in the rotor block and axially each parallel to the axial direction of the rotor block First travelling gear and second travelling gear of the drive mechanism are respectively in the corresponding through hole both sides, often One plunger also has the second tooth-strip part of the corresponding second travelling gear engagement.
4. 4. plunger pump as claimed in claim 3, it is characterised in that：Axial direction of each through hole along the rotor block successively between Every arrangement, for each equal coaxial package of first travelling gear on the first synchronising (connecting) rod, each second travelling gear is coaxial Be set on the second synchronising (connecting) rod, the axial direction of first synchronising (connecting) rod and second synchronising (connecting) rod with the rotor block It is axially in parallel.
5. 5. the plunger pump as described in claim 3 or 4, it is characterised in that：Each drive mechanism is each equipped with being used to make correspondingly The switching of first travelling gear and second travelling gear be driven the unidirectional driving unit of work.
6. 6. plunger pump as claimed in claim 5, it is characterised in that：The unidirectional driving unit includes two synchromesh gears and one Individual tumbler gear a, wherein synchromesh gear and the corresponding first travelling gear coaxial package be on a drive link, separately One synchromesh gear is with the corresponding second travelling gear coaxial package on another drive link；The tumbler gear is fixed It is installed in the pump chamber, and its wheel rim includes that institute can be less than with teeth section of the corresponding two synchromesh gear engagements and radius State with teeth section of root radius anodontia section.
7. 7. plunger pump as claimed in claim 1, it is characterised in that：Each inlet is relative with the apocenosis passage to be set Put.
8. A kind of 8. extracting device of oil, it is characterised in that：Including the plunger pump as any one of claim 1 to 7, the discharge opeing End is connected with the oil pumping actuating unit for pumping and driving the rotor block to be rotated around own axes.
9. 9. extracting device of oil as claimed in claim 8, it is characterised in that：The oil pumping actuating unit includes submersible electric machine with oil, described The joint of submersible electric machine with oil is connected with the drain side, and the motor shaft of the submersible electric machine with oil is connected with the rotor block.
10. 10. extracting device of oil as claimed in claim 8, it is characterised in that：The drain side is connected with oil pipe, the oil pumping power Mechanism includes ground motor and sucker rod, the sucker rod both ends respectively with the rotor block and the ground motor connection.