CN106801668B - Hydraulic-driven coal bed gas well mining tubing pump - Google Patents
Hydraulic-driven coal bed gas well mining tubing pump Download PDFInfo
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- CN106801668B CN106801668B CN201710135454.3A CN201710135454A CN106801668B CN 106801668 B CN106801668 B CN 106801668B CN 201710135454 A CN201710135454 A CN 201710135454A CN 106801668 B CN106801668 B CN 106801668B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
- F04B47/08—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth the motors being actuated by fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1002—Ball valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
Abstract
The invention belongs to Coal-seam Gas Recovery Technologies field, more particularly to a kind of hydraulic-driven coal bed gas well mining tubing pump.Including adapter flange junction portion, power cylinder portion, power cylinder plunger pump junction portion and plunger pump portion, power cylinder portion includes rodless cavity service line, rod chamber service line, cylinder bottom, power cylinder inner cylinder, piston, piston rod, guide sleeve and power cylinder outer barrel, wherein power cylinder outer barrel is upper, lower end is connect with adapter flange junction portion and power cylinder plunger pump junction portion respectively, the upper end of power cylinder inner cylinder is connect with cylinder bottom, lower end is connect by guide sleeve with power cylinder plunger pump junction portion, piston rod is slidably connected with guide sleeve, the top and bottom of piston rod are connect with the plunger of piston and plunger pump portion respectively, rodless cavity service line and rod chamber service line are connected to the rodless cavity of cylinder power cylinder portion and rod chamber.The present invention, without bar mining, solves the problems, such as rod and tube partial-wear using fluid power.
Description
Technical field
The invention belongs to Coal-seam Gas Recovery Technologies field, more particularly to a kind of hydraulic-driven coal bed gas well mining tubing pump.
Background technology
Coal bed gas extraction is that water is discharged out of coal bed gas well by pump drainage, keeps coal seam reservoirs pressure reduction critical to coal bed gas
Desorption pressure value is hereinafter, to make the desorption of ADSORPTION STATE methane be a large amount of free state methane and migrate to well head.
Coal bed gas is primarily present in mountain area, and existing coal bed gas extraction equipment is mostly that the conventional oil pumping of oil exploitation is set
It is standby, it needs to build production platform on massif, massif is destroyed seriously, easily cause the disasters such as mud-rock flow, landslide, and
Institute's construct platform can utilize space small, be commercially produced to realize, need by several mouthfuls of even tens mouthfuls of well constructions based on list
Well mining mechanism gang of wells reaches this purpose；Sucker rod in conventional pumping unit be easy to cause eccentric wear, substantially reduces inspection
The pump period has seriously affected the continuity of coal bed gas extraction so considerably increasing cost.
Invention content
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of hydraulic-driven coal bed gas well mining tubing pump, with solution
The problem of sucker rod in certainly existing pumping unit be easy to cause eccentric wear, shortens pump detection period.
To achieve the goals above, the present invention uses following technical scheme：
A kind of hydraulic-driven coal bed gas well mining tubing pump, including sequentially connected adapter flange connector portions from top to bottom
Point, power cylinder portion, power cylinder plunger pump junction portion and plunger pump portion, the power cylinder portion include rodless cavity power pipe
Line, rod chamber service line, cylinder bottom, power cylinder inner cylinder, piston, piston rod, guide sleeve and power cylinder outer barrel, wherein outside power cylinder
The upper end of cylinder is connect with adapter flange junction portion, and lower end is connect with power cylinder plunger pump junction portion, the power cylinder inner cylinder
It is set in power cylinder outer barrel and upper end is connect with cylinder bottom, the lower end of the power cylinder inner cylinder passes through guide sleeve and power cylinder column
The connection of pump joint part is filled in, power cylinder plunger pump junction portion is equipped with the through-hole of exocoel in connection, and the piston rod holds
It is placed in power cylinder inner cylinder and is slidably connected with guide sleeve, the upper end of the piston rod is equipped with to be slided with the inner wall of power cylinder inner cylinder
The piston of dynamic connection, lower end are connect with the plunger of plunger pump portion, the rodless cavity service line and rod chamber service line by
Adapter flange junction portion introduces and is connected to respectively with the rodless cavity of cylinder power cylinder portion and rod chamber.
The rodless cavity service line is identical with rod chamber service line structure, includes power steel pipe, passes through connector, is dynamic
Solenoid connector and power hose, wherein passing through the threading hole that connector is equipped with across adapter flange junction portion and both ends pass through
Power pipe fitting is connect with power steel pipe and power hose respectively, and the power steel pipe is located at the outer of adapter flange junction portion
Side, the power hose be set to the inside of adapter flange junction portion and on the power cylinder that is equipped with cylinder bottom inlet or
Inlet is connected under the power cylinder that guide sleeve is equipped with, and the connector that passes through passes through with the threading hole on adapter flange junction portion
Dynamic seal ring seals.
The adapter flange junction portion includes upper adapter flange connector, flange bolt, spring shim, flanged joint
Nut and lower adapter flange connector, wherein upper adapter flange connector and lower adapter flange connector pass through flange bolt and method
Blue attaching nut's connection, is equipped with spring shim between the upper adapter flange connector and lower adapter flange connector.
The upper adapter flange connector includes upper reducing connecting tube and the upper flange plate that is connect with its end, the upper flange
Be arranged with upper flange gap on disk, the lower adapter flange connector include sequentially connected lower reducing connecting tube, neck and under
Lower flange gap is arranged on lower flange described in ring flange, the upper flange plate passes through flange bolt with lower flange
It is connected with flanged joint nut.
Power cylinder plunger pump junction portion includes liquid outlet connector and twin adapter, wherein the lower end of twin adapter with it is described
The shell of plunger pump portion connects, and upper end inner wall is equipped with stepped hole, the stepped hole from inside to outside respectively with liquid outlet connector and
The lower end of power cylinder outer barrel connects, and the upper end of the liquid outlet connector is connect with the guide sleeve, the side of the liquid outlet connector
Circumferentially arranged with multiple liquid outlets on wall.
The plunger pump portion include pump barrel and be from top to bottom set in turn in pump barrel upward-traveling valves, plunger, downstream
Dynamic valve and fixed valve, wherein plunger is slidably matched with pump barrel inner wall and both ends are connect with upward-traveling valves and lower travelling valve respectively, institute
It states upward-traveling valves to connect with the lower end of the piston rod, the fixed valve is fixedly connected with the lower end of pump barrel.
The upper end of the fixed valve is connected with kuppe, between the outer wall of the kuppe and the inner wall of the pump barrel there are
Gap, circumferentially arranged with multiple deflector holes on the side wall of the kuppe.
The pump barrel includes from top to bottom sequentially connected upper lengthening pump barrel, main pump cylinder and lower lengthening pump barrel, described above to add
It is connected by upper pump barrel box cupling between long pump barrel and main pump cylinder, passes through lower pump barrel box cupling between the main pump cylinder and lower lengthening pump barrel
Connection.
The upward-traveling valves that the upward-traveling valves include upward-traveling valves valve bonnet and are from top to bottom placed in upward-traveling valves valve bonnet
Valve ball and upward-traveling valves valve seat, the lower end that the upper end of the upward-traveling valves valve bonnet passes through piston rod plunger box cupling and the piston rod
Connection, lower end is connect by internal thread plunger connector with plunger；The lower travelling valve includes lower travelling valve valve bonnet, lower travelling valve valve
Ball, lower travelling valve valve seat and lower travelling valve pressure cap, the wherein upper end of upward-traveling valves valve bonnet are connect with the lower end of the plunger, described
Lower travelling valve pressure cap is connect with the lower end of upward-traveling valves valve bonnet, and the lower travelling valve valve ball and lower travelling valve valve seat from top to bottom hold
It is placed in lower travelling valve valve bonnet.
The fixed valve includes fixed valve valve bonnet, fixed valve valve ball, fixed valve base and fixed valve gland, wherein fixed valve
The upper end of valve bonnet is connect by fixed valve pump barrel box cupling with pump barrel, and the fixed valve gland is connect with the lower end of fixed valve valve bonnet,
The fixed valve valve ball and fixed valve base are from top to bottom placed in successively in fixed valve valve bonnet.
Advantages of the present invention and advantageous effect are：The present invention, without bar mining, it is inclined fundamentally to solve rod tube using fluid power
Mill problem；" multi-machine interaction " has fully considered the situation of the same raised platform around a well in coal bed gas well site more wells joint minings, by hydraulic control system,
It realizes multi-machine interaction, adjust ginseng convenient and adjusts ginseng range big；It is designed using little oil pipe so that oil jacket annular space space increases, and is conducive to
The power fluid pipeline of placement diameter bigger, to reduce being lost along stroke pressure for power fluid；It is designed using power cylinder double-tube structure,
Well liquid is entered by bottom screen casing, and the top of pump is discharged to through oil well pump, and the annular space then flowed through between power cylinder inner/outer tube enters
Top oil pipe, is discharged ground.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of adapter flange junction portion in the present invention；
Fig. 3 is the structural schematic diagram of upper adapter flange connector in the present invention；
Fig. 4 is the structural schematic diagram of lower adapter flange connector in the present invention；
Fig. 5 is the structural schematic diagram of power cylinder portion in the present invention；
Fig. 6 is the structural schematic diagram of power cylinder cylinder bottom in the present invention；
Fig. 7 is the structural schematic diagram of piston in the present invention；
Fig. 8 is the structural schematic diagram of guide sleeve in the present invention；
Fig. 9 is the structural schematic diagram of power cylinder plunger pump junction portion in the present invention；
Figure 10 is the structural schematic diagram of liquid outlet connector in the present invention；
Figure 11 is the structural schematic diagram of duplex fitting in the present invention；
Figure 12 is the structural schematic diagram of plunger pump portion in the present invention；
Figure 13 is the structural schematic diagram that middle and upper reaches of the present invention move valve valve bonnet；
Figure 14 is the structural schematic diagram that middle and lower reaches of the present invention move valve valve bonnet；
Figure 15 is the structural schematic diagram of kuppe in the present invention；
Figure 16 is the structural schematic diagram that valve valve bonnet is fixed in the present invention.
Wherein：1 is adapter flange junction portion, and 1.1 be power steel pipe, and 1.2 be upper adapter flange connector, is become on 1.2.1
Diameter connecting tube, 1.2.2 upper flange plates, 1.2.3 are upper flange gap, and 1.2.4 is upper flange connecting hole, and 1.3 be flanged joint spiral shell
Bolt, 1.4 be spring shim, and 1.5 be flanged joint nut, and 1.6 be dynamic seal ring, and 1.7 is pass through connector, and 1.8 be power pipe
Connector, 1.9 be power hose, and 1.10 be lower adapter flange connector, and 1.10.1 is lower reducing connecting tube, and 1.10.2 is neck,
1.10.3 it is lower flange, 1.10.4 is lower flange gap, and 1.10.5 is lower flange connecting hole, and 2 be power cylinder portion, and 2.1 are
Rodless cavity service line, 2.2 be rod chamber service line, and 2.3 be cylinder bottom, and 2.3.1 is positioning spigot, and 2.3.2 is on power cylinder
Inlet, 2.4 be power cylinder inner cylinder, and 2.5 be plunger stem flange attaching nut, and 2.6 be piston, and 2.6.1 is piston inner stopper,
2.7 be piston rod, and 2.8 be guide sleeve, and 2.8.1 is guide sleeve male half coupling, and 2.8.2 is guide sleeve inner stopper, and 2.8.3 is interior guiding
Face, 2.8.4 are inlet under power cylinder, and 2.9 be power cylinder outer barrel, and 3 be power cylinder plunger pump junction portion, and 3.1 be liquid outlet
Connector, 3.1.1 are liquid outlet connector inner stopper, and 3.1.2 is liquid outlet, and 3.2 be duplex fitting, and 3.2.1 is to stop in duplex fitting
Mouth a, 3.2.2 are seam allowance b in duplex fitting, and 3.2.3 is seam allowance under duplex fitting, and 4 be plunger pump portion, and 4.1 be upper lengthening pump
Cylinder, 4.2 be piston rod plunger box cupling, and 4.3 be upward-traveling valves, and 4.3.1 is upward-traveling valves valve bonnet, and 4.3.1.1 is upward-traveling valves valve
Cover liquid-passing hole, 4.3.2 are upward-traveling valves valve ball, and 4.3.3 is upward-traveling valves valve seat, and 4.4 be upper pump barrel box cupling, and 4.5 be internal thread
Plunger connector, 4.6 be pump barrel, and 4.7 be internal thread monoblock type plunger, and 4.8 be lower pump barrel box cupling, and 4.9 be lower travelling valve, 4.9.1
For lower travelling valve valve bonnet, 4.9.1.1 is lower travelling valve valve bonnet liquid-passing hole, and 4.9.2 is lower travelling valve valve ball, and 4.9.3 is lower travelling
Valve base, 4.9.4 are lower travelling valve pressure cap, and 4.10 be lower lengthening pump barrel, and 4.11 be fixed valve pump barrel box cupling, and 4.12 be water conservancy diversion
Cover, 4.12.1 are deflector hole, and 4.13 be fixed valve body, and 4.13.1 is fixed valve valve bonnet, 4.13.1.1 be fixed valve valve bonnet into
Liquid mouth, 4.13.2 are fixed valve valve ball, and 4.13.3 is fixed valve base, and 4.13.4 is fixed valve gland.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
As shown in Figure 1, shown in Figure 5, a kind of hydraulic-driven coal bed gas well mining tubing pump provided by the invention, including from top to bottom
Sequentially connected adapter flange junction portion 1, power cylinder portion 2, power cylinder plunger pump junction portion 3 and plunger pump portion 4,
Middle power cylinder portion 2 includes rodless cavity service line 2.1, rod chamber service line 2.2, cylinder bottom 2.3, power cylinder inner cylinder 2.4, lives
Plug 2.6, piston rod 2.7, guide sleeve 2.8 and power cylinder outer barrel 2.9, the wherein upper end of power cylinder outer barrel 2.9 connect with adapter flange
Head point 1 is threadedly coupled, and lower end is connect with power cylinder plunger pump junction portion 3, and power cylinder inner cylinder 2.4 is set to power cylinder outer barrel
In 2.9 and upper end is threadedly coupled with cylinder bottom 2.3, and the lower end of power cylinder inner cylinder 2.4 passes through guide sleeve 2.8 and power cylinder plunger pump
Junction portion 3 is threadedly coupled, and power cylinder plunger pump junction portion 3 is equipped with the through-hole of exocoel in connection, and piston rod 2.7 is placed in
Be slidably connected in power cylinder inner cylinder 2.4 and with guide sleeve 2.8, the upper end of piston rod 2.7 be equipped with in power cylinder inner cylinder 2.4
The piston 2.6 that wall is slidably connected, lower end are connect with the plunger of plunger pump portion 4, rodless cavity service line 2.1 and rod chamber power
Pipeline 2.2 is introduced by adapter flange junction portion 1 and is connected to respectively with the rodless cavity of cylinder power cylinder portion 2 and rod chamber.Upper change
Diameter bump joint 1.2 is connected through a screw thread top connected pipes,
Further, piston 2.6 is connect by plunger stem flange attaching nut 2.5 with piston rod 2.7, and plunger stem flange connects
Connected nut 2.5 and the piston inner stopper 2.6.1 of piston 2.6 are located by connecting, as shown in Figure 7.
As shown in Fig. 2, rodless cavity service line 2.1 is identical with 2.2 structure of rod chamber service line, include power steel pipe
1.1, connector 1.7, power pipe fitting 1.8 and power hose 1.9 are passed through, wherein passing through connector 1.7 passes through adapter flange connector portions
Divide 1 threading hole being equipped with and both ends are connected with power steel pipe 1.1 and 1.9 screw thread of power hose respectively by power pipe fitting 1.8
It connects, power steel pipe 1.1 is located at the outside of adapter flange junction portion 1, and power hose 1.9 is set to adapter flange junction portion 1
Inside and the power cylinder that is equipped with cylinder bottom 2.3 on feed liquor under the power cylinder that is equipped with of inlet 2.3.2 or guide sleeve 2.8
Mouth 2.8.4 connections, as shown in Fig. 6, Fig. 8.It is close by power with the threading hole on adapter flange junction portion 1 to pass through connector 1.7
Seal ring 1.6 seals.
Adapter flange junction portion 1 includes upper adapter flange connector 1.2, flange bolt 1.3, spring shim 1.4, method
Blue attaching nut 1.5 and lower adapter flange connector 1.10, wherein upper adapter flange connector 1.2 and lower adapter flange connector 1.10
It is connected by flange bolt 1.3 and flanged joint nut 1.5, upper adapter flange connector 1.2 and lower adapter flange connector
Spring shim 1.4 is equipped between 1.10.
As shown in Figure 3-4, upper adapter flange connector 1.2 includes upper reducing connecting tube 1.2.1 and is connect with its end upper
Upper flange gap 1.2.3 is arranged on ring flange 1.2.2, upper flange plate 1.2.2.Lower adapter flange connector 1.10 includes successively
It is arranged with down on lower reducing connecting tube 1.10.1, the neck 1.10.2 and lower flange 1.10.3 lower flanges 1.10.3 of connection
Flange gap 1.10.4, upper flange plate 1.2.2 and lower flange 1.10.3 pass through flange bolt 1.3 and flanged joint nut
1.5 connection and upper flange gap 1.2.3 and lower flange gap 1.10.4 it is corresponding, power steel pipe 1.1 is placed in upper flange gap
1.2.3 in lower flange gap 1.10.4.
As shown in figs. 9-11, power cylinder plunger pump junction portion 3 includes liquid outlet connector 3.1 and twin adapter 3.2, wherein double
The lower end of connector 3.2 is threadedly coupled with the shell of plunger pump portion 4 and is positioned by seam allowance 3.2.3 under duplex fitting, in upper end
Wall is equipped with stepped hole, i.e., seam allowance b3.2.2 in seam allowance a3.2.1 and duplex fitting in the duplex fitting being arranged from outside to inside, wherein
Seam allowance a3.2.1 is connected with the lower end of power cylinder outer barrel 2.9 in duplex fitting, and seam allowance b3.2.2 connects with liquid outlet in duplex fitting
First 3.1 lower thread connection, the upper end of liquid outlet connector 3.1 is connect with threaded guide sleeve 2.8 and by liquid outlet connector
Seam allowance 3.1.1 is positioned, circumferentially arranged with multiple liquid outlet 3.1.2 on the side wall of liquid outlet connector 3.1.
In one embodiment of the invention, on the side wall of liquid outlet connector 3.1 circumferentially arranged with four sizes it is identical go out liquid
Mouth 3.1.2.
As shown in figure 12, plunger pump portion 4 includes pump barrel 4.6 and the upstream being from top to bottom set in turn in pump barrel 4.6
Dynamic valve 4.3, plunger 4.7, lower travelling valve 4.9 and fixed valve 4.13, wherein plunger 4.7 are slidably matched and two with 4.6 inner wall of pump barrel
End is connect with upward-traveling valves 4.3 and lower travelling valve 4.9 respectively, and upward-traveling valves 4.3 are connect with the lower end of piston rod 2.7, fixed valve
4.13 are fixedly connected with the lower end of pump barrel 4.6.
The upper end of fixed valve 4.13 is connected with kuppe 4.12, between the outer wall and the inner wall of pump barrel 4.6 of kuppe 4.12
There are gap, circumferentially arranged with multiple deflector hole 4.12.1 on the side wall of kuppe 4.12, as shown in figure 15.
Pump barrel 4.6 includes from top to bottom sequentially connected upper lengthening pump barrel 4.1, main pump cylinder and lower lengthening pump barrel 4.10, on
It lengthens and is connected by upper pump barrel box cupling 4.4 between pump barrel 4.1 and main pump cylinder, under passing through between main pump cylinder and lower lengthening pump barrel 4.10
Pump barrel box cupling 4.8 connects.The upper upper end for lengthening pump barrel 4.1 is connect with the lower thread of duplex fitting 3.2.
Upward-traveling valves 4.3 include upward-traveling valves valve bonnet 4.3.1 and are from top to bottom placed in upward-traveling valves valve bonnet 4.3.1
Upward-traveling valves valve ball 4.3.2 and upward-traveling valves valve seat 4.3.3, the upper end of upward-traveling valves valve bonnet 4.3.1 are connect by piston rod plunger
Hoop 4.2 is connect with the lower end of piston rod 2.7, and lower end is connect by internal thread plunger connector 4.5 with plunger 4.7；Upward-traveling valves valve
It covers on 4.3.1 circumferentially arranged with multiple upward-traveling valves valve bonnet liquid-passing hole 4.3.1.1, as shown in figure 13.
Lower travelling valve 4.9 includes lower travelling valve valve bonnet 4.9.1, lower travelling valve valve ball 4.9.2, lower travelling valve valve seat 4.9.3
And lower travelling valve pressure cap 4.9.4, the wherein upper end of upward-traveling valves valve bonnet 4.3.1 are connect with the lower end of plunger 4.7, lower travelling valve pressure
Cap 4.9.4 is connect with the lower end of upward-traveling valves valve bonnet 4.3.1, and lower travelling valve valve ball 4.9.2 and lower travelling valve valve seat 4.9.3 are by upper
It is placed under in lower travelling valve valve bonnet 4.9.1.The internal partition of lower travelling valve valve bonnet 4.9.1 is equipped with multiple lower travelling valve valves
Cover liquid-passing hole 4.9.1.1, as shown in figure 14.
Fixed valve 4.13 includes fixed valve valve bonnet 4.13.1, fixed valve valve ball 4.13.2, fixed valve base 4.13.3 and solid
Valve gland 4.13.4 is determined, wherein the upper end of fixed valve valve bonnet 4.13.1 passes through fixed valve pump barrel box cupling 4.11 and lower lengthening pump barrel
4.10 bottom thread connection, fixed valve gland 4.13.4 are connect with the lower thread of fixed valve valve bonnet 4.13.1, fixed valve valve
Ball 4.13.2 and fixed valve base 4.13.3 are from top to bottom placed in successively in fixed valve valve bonnet 4.13.1.Fixed valve valve bonnet
4.13.1 internal partition is equipped with multiple fixed valve valve bonnet liquid-passing hole 4.13.1.1, as shown in figure 16.
The present invention operation principle be：
When upstroke, power fluid enters guide sleeve 2.8 by rod chamber service line 2.2, hence under power cylinder portion 2
Chamber, power fluid push piston rod 2.7 to run up, and piston rod 2.7 drives plunger 4.7 upward by piston rod plunger box cupling 4.2
Movement, fixed valve valve ball 4.13.2 uplinks under the action of two-way pressure difference, outside liquid is along fixed valve 4.13, kuppe
4.12, fixed valve pump barrel box cupling 4.11, lower lengthening pump barrel 4.10, lower pump barrel box cupling 4.8 enter inside pump barrel 4.6.
When down stroke, power fluid enters cylinder bottom 2.3 by rodless cavity service line 2.1, hence on power cylinder portion 2
Chamber, power fluid push piston rod 2.7 to run down, and piston rod 2.7 pushes internal thread monoblock type by piston rod plunger box cupling 4.2
Plunger 4.7 moves downward, and volume reduces between fixed valve 4.13 and lower travelling valve pressure cap 4.9.4, and fixed valve 4.13 is closed, upstream
Dynamic valve 4.3 and lower travelling valve 4.9 are opened, and liquid is along plunger 4.7, upward-traveling valves 4.3, liquid outlet connector 3.1, double in pump barrel 4.6
Pass joint 3.2, power cylinder outer barrel 2.9, lower adapter flange connector 1.10, spring shim 1.4, upper adapter flange connector 1.2 enter
External oil pipe.
In conclusion hydraulic-driven coal bed gas well mining tubing pump provided by the invention, is integrally divided into adapter flange connector
Partly, power cylinder portion, power cylinder plunger pump junction portion, plunger pump portion four are most of, suitable according to top-down installation
Sequence, using threaded connection be sequentially connected oil pipe, adapter flange junction portion, power cylinder portion, power cylinder plunger pump junction portion,
Plunger pump portion, power cylinder inner cylinder connect liquid outlet connector, are utilized with power cylinder outer barrel and are threadedly coupled connection duplex fitting, wherein
Adapter flange junction portion is connected through a screw thread top oil pipe, and lower part connects power cylinder outer barrel, and liquid outlet connector is logical inside it
Threaded connection power cylinder portion is crossed, power cylinder outer barrel bottom connects plunger pump portion with liquid outlet connector lower thread；Become shot
It is big by changing internal diameter inside blue junction portion connection external impetus steel pipe and internal motivation hose conveying power fluid to power cylinder
Small connected pipes and power cylinder outer barrel；Power cylinder portion pushes piston rod to move up and down by the power fluid of epicoele or cavity of resorption, living
Stopper rod drives the plunger of plunger pump portion to pump, and power cylinder outer barrel gives the liquid into plunger pump part to provide flowing
Space makes it run up；Power cylinder plunger pump junction portion utilizes threaded connection power cylinder portion and plunger pump portion so that
Plunger pump partial interior liquid enters power cylinder outer barrel by liquid outlet joint surface liquid outlet；Plunger pump partial interior column
Plug, which moves up and down, changes pressure difference in pump, by the opening and closing of upward-traveling valves valve body, lower travelling valve valve body, fixed valve body,
Down-hole liquid is constantly extracted, into inside pump barrel.
The present invention, without bar mining, is avoided rod and tube partial-wear and broken de- using fluid power；Using " multi-machine interaction ", adjusts ginseng convenient and adjust
It is big to join range；It is designed using little oil pipe, reduces being lost along stroke pressure for power fluid；It is designed using power cylinder double-tube structure, well
Liquid is entered by bottom screen casing, is flowed through the annular space between plunger pump and power cylinder inner/outer tube and is entered top oil pipe, and then ground is discharged.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the present invention.It is all in the present invention
Spirit and principle within any modification, equivalent replacement, improvement, extension etc., be all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of hydraulic-driven coal bed gas well mining tubing pump, it is characterised in that：Including sequentially connected change shot from top to bottom
Blue junction portion (1), power cylinder portion (2), power cylinder plunger pump junction portion (3) and plunger pump portion (4), the power cylinder
Partly (2) include rodless cavity service line (2.1), rod chamber service line (2.2), cylinder bottom (2.3), power cylinder inner cylinder (2.4),
Piston (2.6), piston rod (2.7), guide sleeve (2.8) and power cylinder outer barrel (2.9), the wherein upper end of power cylinder outer barrel (2.9)
It is connect with adapter flange junction portion (1), lower end is connect with power cylinder plunger pump junction portion (3), the power cylinder inner cylinder
(2.4) it is set in power cylinder outer barrel (2.9) and upper end is connect with cylinder bottom (2.3), the lower end of the power cylinder inner cylinder (2.4)
It is connect with power cylinder plunger pump junction portion (3) by guide sleeve (2.8), is set on power cylinder plunger pump junction portion (3)
There are the through-hole of exocoel in connection, the piston rod (2.7) to be placed in power cylinder inner cylinder (2.4) and slided with guide sleeve (2.8)
Connection, the upper end of the piston rod (2.7) are equipped with the piston (2.6) being slidably connected with the inner wall of power cylinder inner cylinder (2.4), lower end
It is connect with the plunger of plunger pump portion (4), the rodless cavity service line (2.1) and rod chamber service line (2.2) are by reducing
Bump joint part (1) introduces and is connected to respectively with the rodless cavity of power cylinder portion (2) and rod chamber.
2. hydraulic-driven coal bed gas well mining tubing pump according to claim 1, it is characterised in that：The rodless cavity power
Pipeline (2.1) is identical with rod chamber service line (2.2) structure, includes power steel pipe (1.1), passes through connector (1.7), power
Pipe fitting (1.8) and power hose (1.9) are worn wherein passing through connector (1.7) across what adapter flange junction portion (1) was equipped with
String holes and both ends are connect with power steel pipe (1.1) and power hose (1.9) respectively by power pipe fitting (1.8), the power
Steel pipe (1.1) is located at the outside of adapter flange junction portion (1), and the power hose (1.9) is set to adapter flange connector portions
What inlet (2.3.2) or guide sleeve (2.8) were equipped on the inside of point (1) and the power cylinder being equipped with cylinder bottom (2.3) is dynamic
Inlet (2.8.4) is connected under power cylinder, and the connector (1.7) that passes through passes through with the threading hole on adapter flange junction portion (1)
Dynamic seal ring (1.6) seals.
3. hydraulic-driven coal bed gas well mining tubing pump according to claim 2, it is characterised in that：The adapter flange connects
Head point (1) includes upper adapter flange connector (1.2), flange bolt (1.3), spring shim (1.4), flanged joint nut
(1.5) and lower adapter flange connector (1.10), wherein upper adapter flange connector (1.2) and lower adapter flange connector (1.10) pass through
Flange bolt (1.3) and flanged joint nut (1.5) connection, the upper adapter flange connector (1.2) and lower adapter flange
Spring shim (1.4) is equipped between connector (1.10).
4. hydraulic-driven coal bed gas well mining tubing pump according to claim 3, it is characterised in that：The upper adapter flange
Connector (1.2) includes upper reducing connecting tube (1.2.1) and the upper flange plate (1.2.2) being connect with its end, the upper flange plate
Upper flange gap (1.2.3) is arranged on (1.2.2), the lower adapter flange connector (1.10) includes sequentially connected lower change
Diameter connecting tube (1.10.1), neck (1.10.2) and lower flange (1.10.3) are symmetrically set on the lower flange (1.10.3)
There are lower flange gap (1.10.4), the upper flange plate (1.2.2) to pass through flange bolt with lower flange (1.10.3)
(1.3) it is connected with flanged joint nut (1.5).
5. hydraulic-driven coal bed gas well mining tubing pump according to claim 1, it is characterised in that：The power cylinder plug
Pump joint part (3) includes liquid outlet connector (3.1) and twin adapter (3.2), the wherein lower end of twin adapter (3.2) and the plunger
The shell of pump portion (4) connects, and upper end inner wall is equipped with stepped hole, the stepped hole from inside to outside respectively with liquid outlet connector
(3.1) it is connected with the lower end of power cylinder outer barrel (2.9), upper end and the guide sleeve (2.8) of the liquid outlet connector (3.1) connect
It connects, circumferentially arranged with multiple liquid outlets (3.1.2) on the side wall of the liquid outlet connector (3.1).
6. hydraulic-driven coal bed gas well mining tubing pump according to claim 1, it is characterised in that：The plunger pump portion
(4) include pump barrel (4.6) and the upward-traveling valves (4.3) being from top to bottom set in turn in pump barrel (4.6), plunger (4.7), downstream
Dynamic valve (4.9) and fixed valve (4.13), wherein plunger (4.7) be slidably matched with pump barrel (4.6) inner wall and both ends respectively with upstream
Dynamic valve (4.3) and lower travelling valve (4.9) connection, the upward-traveling valves (4.3) connect with the lower end of the piston rod (2.7), institute
Fixed valve (4.13) is stated to be fixedly connected with the lower end of pump barrel (4.6).
7. hydraulic-driven coal bed gas well mining tubing pump according to claim 6, it is characterised in that：The fixed valve
(4.13) upper end is connected with kuppe (4.12), the outer wall of the kuppe (4.12) and the inner wall of the pump barrel (4.6) it
Between there are gap, circumferentially arranged with multiple deflector holes (4.12.1) on the side wall of the kuppe (4.12).
8. hydraulic-driven coal bed gas well mining tubing pump according to claim 6, it is characterised in that：The pump barrel (4.6)
Including from top to bottom sequentially connected upper lengthening pump barrel (4.1), main pump cylinder and lower lengthening pump barrel (4.10), the upper lengthening pump barrel
(4.1) it is connected by upper pump barrel box cupling (4.4) between main pump cylinder, is passed through between the main pump cylinder and lower lengthening pump barrel (4.10)
Lower pump barrel box cupling (4.8) connection.
9. hydraulic-driven coal bed gas well mining tubing pump according to claim 6, it is characterised in that：The upward-traveling valves
(4.3) the upward-traveling valves valve for including upward-traveling valves valve bonnet (4.3.1) and being from top to bottom placed in upward-traveling valves valve bonnet (4.3.1)
The upper end of ball (4.3.2) and upward-traveling valves valve seat (4.3.3), the upward-traveling valves valve bonnet (4.3.1) is connect by piston rod plunger
Hoop (4.2) is connect with the lower end of the piston rod (2.7), and lower end is connected by internal thread plunger connector (4.5) and plunger (4.7)
It connects；The lower travelling valve (4.9) includes lower travelling valve valve bonnet (4.9.1), lower travelling valve valve ball (4.9.2), lower travelling valve valve seat
Under (4.9.3) and lower travelling valve pressure cap (4.9.4), the wherein upper end of upward-traveling valves valve bonnet (4.3.1) and the plunger (4.7)
End connection, the lower travelling valve pressure cap (4.9.4) connect with the lower end of upward-traveling valves valve bonnet (4.3.1), the lower travelling valve valve
Ball (4.9.2) and lower travelling valve valve seat (4.9.3) are from top to bottom placed in lower travelling valve valve bonnet (4.9.1).
10. hydraulic-driven coal bed gas well mining tubing pump according to claim 6, it is characterised in that：The fixed valve
(4.13) include fixed valve valve bonnet (4.13.1), fixed valve valve ball (4.13.2), fixed valve base (4.13.3) and fixed valve pressure
It covers (4.13.4), wherein the upper end of fixed valve valve bonnet (4.13.1) is connected by fixed valve pump barrel box cupling (4.11) with pump barrel (4.6)
It connects, the fixed valve gland (4.13.4) connect with the lower end of fixed valve valve bonnet (4.13.1), the fixed valve valve ball
(4.13.2) and fixed valve base (4.13.3) are from top to bottom placed in successively in fixed valve valve bonnet (4.13.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135454.3A CN106801668B (en) | 2017-03-08 | 2017-03-08 | Hydraulic-driven coal bed gas well mining tubing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135454.3A CN106801668B (en) | 2017-03-08 | 2017-03-08 | Hydraulic-driven coal bed gas well mining tubing pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106801668A CN106801668A (en) | 2017-06-06 |
| CN106801668B true CN106801668B (en) | 2018-10-26 |
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ID=58988693
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710135454.3A Active CN106801668B (en) | 2017-03-08 | 2017-03-08 | Hydraulic-driven coal bed gas well mining tubing pump |
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| CN (1) | CN106801668B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202017604U (en) * | 2011-04-08 | 2011-10-26 | 克拉玛依亚龙石油泵有限公司 | High-efficiency oil well pump |
| US9784254B2 (en) * | 2012-12-21 | 2017-10-10 | Floyd John Bradford, Jr. | Tubing inserted balance pump with internal fluid passageway |
| CN203098228U (en) * | 2013-02-28 | 2013-07-31 | 张衍 | Anti-mud eccentric-wear-resistant oil well pump |
| CN106246518B (en) * | 2016-08-24 | 2017-10-13 | 中国石油大学(华东) | The self-cleaning anti-sticking tubing pump of coal bed gas well |
| CN206738135U (en) * | 2017-03-08 | 2017-12-12 | 中联煤层气国家工程研究中心有限责任公司 | Hydraulic-driven coal bed gas well mining tubing pump |
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2017
- 2017-03-08 CN CN201710135454.3A patent/CN106801668B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106801668A (en) | 2017-06-06 |
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