CN107989779A - A kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder - Google Patents
A kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder Download PDFInfo
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- CN107989779A CN107989779A CN201711443737.0A CN201711443737A CN107989779A CN 107989779 A CN107989779 A CN 107989779A CN 201711443737 A CN201711443737 A CN 201711443737A CN 107989779 A CN107989779 A CN 107989779A
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- valve
- plunger
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- spherical
- well
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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
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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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/16—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having two or more sets of cylinders or pistons
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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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/18—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having self-acting distribution members, i.e. actuated by working 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
- F04B53/1017—Semi-spherical 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
- F04B53/10—Valves; Arrangement of valves
- F04B53/1087—Valve seats
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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
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of latent vertical plunger oil-well pump fluid end of well formula multi-cylinder, combination valve, plunger including the pump housing and in the pump housing, the combination valve has at least two and is circumferentially distributed in each combination valve valve chamber on pump housing top, and the plunger arranged on the lower section of each combination valve and can provide feed liquor for corresponding combination valve and go out hydraulic power up or down.This fluid end is under the driving of power end, each plunger can alternately pump, the upper and lower combination valve that operates to of plunger provides feed liquor and goes out hydraulic power, so as to which constantly the oil outside the pump housing be discharged by the drain pipe on the pump housing, the continuous continuous operation of each combination valve in the present invention, substantially increases pumping efficiency height.At the same time, this fluid end can be integrated in one with power end, the power source of oil well pump, can realize that rotation is integrated with reciprocalfunction, so make whole oil well pump energy consumption, cost reduction, dismounting technique it is simple, conveniently, long lifespan, be particularly suitable for stripper well and pump operating mode.
Description
Technical field
The present invention relates to pump technical field, refers specifically to a kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder, to solve
The intrinsic pumping unit of tradition is low with the oil pumping efficiency of pump, energy consumption is high, does not possess the technical problem of stripper well oil pumping function.
Background technology
Oil pump has been widely used in oil extraction in oil field technique, and oil pump is various in style, is generally divided into ground
Face pumping unit (being also kowtowing machine), hydraulic piston pump, subsurface progressive cavity, centrifugal pump etc..Although existing various oil pumps
The production technology and operation principle of use differ, but insufficient below generally existing：Equipment is huge, oil recovery power consumption is big, efficiency
Low (generally below 30%), short life.
Due to deep hundred meters of oil well even km, oil well pump maintenance carries well, and once upper and lower enormous costs are big, once need
Ten thousand or tens of thousands of members, cause cost of use height.Pumping unit is also one of the reason for causing oil field power consumption big, of high cost.At present, state
Inside and outside pumping unit (kowtowing machine) being most widely used and most traditional, such oil well pump market demand is maximum, but such is taken out
Oil pump is not appropriate for stripper well oil pumping, its sucker rod is easily lost, and it is several ten million tons that oil field at home sucker rod year, which consumes quantity, is thus produced
Raw wear and tear expense number is surprising.
Under above-mentioned overall situation, oil field upgrading synergy, green, innovation are the work slogans of numerous oil workers, and oil pumping is set
Standby Great Revolution is being unfolded, and serious hope substitution traditional pumping unit cry in oil field is very big, and stripper well waits for pumping of new generation
The birth of oily equipment.
The content of the invention
The technical problem to be solved by the invention for the present situation of prior art is to provide one kind is efficient, energy consumption is low, tears open
Unload technique it is simple, conveniently, the vertical plunger oil-well pump fluid end of latent well formula multi-cylinder of long lifespan, and the fluid end can be realized and pump
The integrated design of the power end of pump, meets the design requirement of stripper well oil pumping operating mode.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of latent vertical plunger oil-well pump of well formula multi-cylinder
Fluid end, it is characterised in that：Combination valve, plunger including the pump housing and in the pump housing, the combination valve using tapping valve it is upper,
Integrative-structure of the liquid feed valve under, the combination valve have at least two and are circumferentially distributed in each combination valve valve chamber on pump housing top,
And the admission chamber of each combination valve is corresponding with an inlet being located on the pump housing side wall, and each inlet is through each right
Admission chamber and the exhaust chamber perforation for the combination valve answered are located at the concentration runner among the pump housing, so that medium is through concentrating runner
The tapping line discharge ground at the top of the pump housing on leakage fluid dram is connected on outside；The lower section of each combination valve is corresponding with a column
Plug, each plunger can be arranged in respective plunger channel up or down by kinetic hermetic subassembly, and each plunger leads to
Road is corresponded in the combination valve valve chamber and penetrated through；Each plunger is designed to sphere with respect to one end of oil well pump power end
Body head.
In such scheme, the combination valve includes：
Valve body, using feed liquor valve base and discharge opeing valve base Integral design；
Upper and lower spool, is respectively provided on the upper lower valve port of valve body, and to misplace, 180 degree arranges that described is upper and lower up and down
Spool using can rotation hemisphere valve core structure；
Upper and lower spherical limiting valve bonnet, is respectively provided at two of valve body, and the upper and lower spool is covered on corresponding limit
In the valve bonnet of position, make the upper and lower spool can the sliding, and upper and lower spherical limiting valve up and down in corresponding spherical limiting valve bonnet
Spherical limiting point is respectively equipped with cover；
Upper and lower spring, is respectively provided between spherical limiting valve bonnet and upper valve core, and the spacing valve bonnet of lower peripheral surface and lower valve
Between core.Combinations thereof valve arrangement is spool as a result of hemisphere, alleviates spool dead weight and is conducive to spool reduction hysteresis, and
When close and improve efficiency and valve face service life.
Preferably, the pump housing is cylinder.
The admission chamber of each combination valve is formed after carrying out upper-lower seal by the valve chamber in the pump housing, and the row
Sap cavity is to be located at the upper surface of each combination valve and communicated with the concentration runner among body top.
For the ease of assembling, the plunger is connected and composed by the plunger body on top and the stopper head of lower part, the column
Chock plug is equipped with the spherical surface body head；The plunger body passes through the motion seal part that is mainly made of major and minor guide sleeve
It is positioned at the locating ring positioned at motion seal part upper end in respective plunger channel.
The plunger lower end is provided with the withdrawing device being connected that it can rotate with oil well pump power end.
Preferably, the withdrawing device includes a disk of pulling back for being arranged on top in the middle part of camshaft inclined-plane, disk of pulling back
Periphery wall on be configured to spherical groove, accordingly the plunger it is cylindrical on be formed with and the matched ball of spherical groove
Shape dome platform, spherical male round platform and the spherical groove pulled back on disk form friction pair and camshaft synchronous rotary；Described
Spherical surface body on plunger is arranged on below the spherical male round platform.
Preferably, the withdrawing device further includes one and is located at the support block pulled back between disk and camshaft, support block
Lower part be positioned in the cavity among the inclined-plane of camshaft, top is in convex spherical and is located at the concave ball surfaces of tray bottom of pulling back
Coordinate sphere sliding pair in a pair；The central axial of described pull back disk and support block is equipped with corresponding bolt hole and passes through them
Bolt is fixed together with camshaft.
Compared with prior art, the advantage of the invention is that：Possesses stripper well oil pumping function the present invention provides a kind of
The vertical plunger oil-well pump fluid end of latent well formula multi-cylinder, under the driving of power end, each plunger alternately can be transported up and down reciprocatingly for it
Dynamic, the upper and lower combination valve that operates to of plunger provides feed liquor and goes out hydraulic power, so as to constantly arrange oil by the drain pipe on the pump housing
Go out, the continuous continuous operation of each combination valve in the present invention, substantially increases pumping efficiency height.Meanwhile this fluid end can be with
Power end, the power source of oil well pump are integrated in one, and can realize that rotation is integrated with reciprocalfunction, so make whole oil well pump
Energy consumption, cost reduction, dismounting technique is simple, conveniently, long lifespan, be particularly suitable for stripper well oil pumping operating mode.
Brief description of the drawings
Fig. 1 is the structure diagram of oil well pump of the embodiment of the present invention；
Fig. 2 is the structure diagram of fluid end in Fig. 1；
Fig. 3 is the structure diagram of power end in Fig. 1；
Fig. 4 is the profile of middle pump body of the embodiment of the present invention；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the structure diagram of camshaft in the embodiment of the present invention；
Fig. 7 is the structure diagram of disk of pulling back in the embodiment of the present invention；
Fig. 8 is the structure diagram of contiguous block in the embodiment of the present invention；
Fig. 9 is the structure diagram of ball stud in the embodiment of the present invention；
Figure 10 is the structure diagram of stopper head in the embodiment of the present invention；
Figure 11 is the structure diagram of combination valve in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
What is illustrated in the present embodiment figure is the structure for being equiped with the overall oil well pump according to fluid end of the present invention.
As shown in Fig. 1~11, the latent vertical plunger oil-well pump of well formula multi-cylinder of the present embodiment includes the pump housing 1 and arranged on the pump housing 1
In fluid end a, power end b, the pump housing 1 for cylinder, power end b to drive fluid end a run.The pump housing 1 by fluid end a and
Power end b becomes one, and fluid end a is arranged on the upper of the pump housing 1, and power end b is arranged on the bottom of the pump housing 1.
In the present embodiment, fluid end a includes combination valve 2 and plunger 3, and the fluid end a of the present embodiment is triplex structure, i.e.,
Combination valve 2 is three, and certainly, the quantity of combination valve 2 can also select to use according to the size of oil well tubing and casing in actual use
Two cylinder, five cylinders, six cylinders or more cylinder.Each combination valve 2 is circumferential to be distributed in 2 valve chamber 10 of each combination valve on 1 top of the pump housing, and often
The admission chamber 22 of one combination valve 2 is corresponding with an inlet 21 being located on 1 side wall of the pump housing, and each inlet 21 is through each corresponding
Combination valve 2 admission chamber 22 and exhaust chamber 23 penetrate through the concentration runner 12 being located among the pump housing 1 so that medium is flowed through concentrating
Road 12 and the drain pipe 13 being connected on outside on the leakage fluid dram of 1 crown center of the pump housing discharge ground.Plunger 3 can be arranged on each up or down
The lower section of combination valve 2 simultaneously provides feed liquor for corresponding combination valve 2 and goes out hydraulic power.The lower section of each combination valve 2 is corresponding with one
Plunger 3, each plunger 3 can be arranged in respective 3 passage of plunger up or down by kinetic hermetic subassembly, and each plunger 3 is logical
Road is corresponded in 2 valve chamber 10 of combination valve and penetrated through.Each plunger 3 is designed to spherical surface body head 31 with respect to one end of power end b.
In the present embodiment, combination valve 2 using liquid feed valve under, tapping valve upper into, tapping valve integrated design, group
Valve 2 is closed by valve body 20, upper and lower spool 23a, 23b, upper and lower spherical limiting valve bonnet 21a, 21b, upper and lower spring 22a, 22b etc.
Composition.Valve body 20 is arranged on the top of the pump housing 1 by silently 14, and valve body 20 is integrally set using feed liquor valve base with discharge opeing valve base
Meter；Upper and lower spool 23a, 23b structure is identical, is respectively provided on the upper lower valve port of valve body, and to misplace, 180 degree is arranged up and down,
Upper and lower spool 23a, 23b are using the hemisphere valve core structure that rotation can be achieved.Upper and lower spherical limiting valve bonnet 21a, 21b are respectively provided at
Two of valve body, upper and lower spool 23a, 23b is covered in corresponding spacing valve bonnet, upper and lower spool 23a, 23b can be in correspondences
Spherical limiting valve bonnet in sliding up and down, and spherical limiting point 211 is respectively equipped with upper and lower spherical limiting valve bonnet, and in sphere
The outer of limit point sets step to be positioned for spring 22a, 22b.Upper and lower spring 22a, 22b are respectively provided at spherical limiting valve
Between cover and 21a upper valve cores 23a, and between lower peripheral surface spacing valve bonnet 21b and bottom spool 23b, the both ends point of spring 22a, 22b
It is not positioned in the R shapes groove of spool end and on the step of 211 outer of spherical limiting point.This combination valve 2 works as hemisphere spool up
Movement, when the spherical limiting point 211 on valve bonnet is run into end face, spool is to tilt to the active force of spring by sphere as extremely at this time,
This just allow hemisphere spool ball valve face change position after fall on valve seat valve face, formation freely replaces sealing.Each combination valve 2
Admission chamber is formed after carrying out upper-lower seal by valve chamber in the pump housing 1, and exhaust chamber is to be located at the upper surface of each combination valve 2 simultaneously
Communicated with the concentration runner 12 of valve body crown center.It is spool as a result of hemisphere, alleviates spool dead weight and be conducive to
Spool reduces hysteresis, closes improve efficiency and valve face service life in time.
For the ease of assembling, plunger 3 passes through mutual outer, interior spiral shell by the plunger body 33 on top and the stopper head 34 of lower part
Line connection is integral, and stopper head 34 is equipped with spherical male round platform 32 and spherical surface body head 31, each plunger body 33 by one group by
The motion seal part that major and minor guide sleeve 36 is formed and the locating ring 35 positioned at motion seal part upper end are positioned at respective plunger and lead to
In road.And be screwed in for ease of plunger body 33 on stopper head 34, an assistance mounting hole is also provided with pump housing side wall.
This fluid end is to realize to connect by the camshaft 4 of a withdrawing device c and power end b of pump, and camshaft 4 can rotate
Ground is arranged in the pump housing 1 and positioned at the lower section of plunger 3.The 4 lower end edge pump housing 1 of camshaft extend axially downward and with the power source 8 of lower section
It is connected, the power source 8 in the present embodiment is the motor arranged on the lower section of the pump housing 1.The top of camshaft 4 is end face in inclined-plane 41
Cam structure 40, and inclined-plane 41 is equipped with a toroidal cavity 411, and 411 shape of groove is the spherical surface body head with each plunger 3
31 spheres to match.Inclined-plane 41 on camshaft 4 from 0 to one a stroke height can 360 degree trackslip, match row needed for plunger 3
Cheng Gaodu.It is connected between each plunger 3 and camshaft 4 by withdrawing device c, the spherical surface body head 31 of each plunger 3 is slideably
It is arranged in toroidal cavity 411, and makes the spherical surface body head 31 of each plunger 3 contorted in camshaft 4 by withdrawing device c
Each plunger 3 is driven to make upper and lower reciprocating motion under state.
Specifically, withdrawing device c includes a disk 5 of pulling back for being arranged on top in the middle part of 4 inclined-plane of camshaft, disk 5 of pulling back it is outer
Spherical groove 51 is formed with perisporium, accordingly plunger 3 it is cylindrical on be formed with it is matched spherical with spherical groove 51
Dome platform 32, spherical male round platform 32 and the spherical groove 51 pulled back on disk 5 form friction pair and 4 synchronous rotary of camshaft.
Spherical surface body head 31 on plunger 3 is arranged on below spherical male round platform 32.For the ease of connection, withdrawing device c is further included
There is one to be located at the support block 6 pulled back between disk 5 and camshaft 4, the lower part of support block 6 is positioned among the inclined-plane 41 of camshaft 4
Cavity 412 in, the top of support block 6 is in convex spherical 61, and the concave ball surfaces 52 with being located at 5 bottom of disk of pulling back coordinate in a pair
Sphere sliding pair.The central axial of disk 5 and the support block 6 of pulling back is equipped with corresponding bolt hole 50,62 and them is passed through ball stud
100 are fixed together with camshaft 4, and the upper plane for 5 bolt hole 50 of disk of pulling back is spill hemisphere face, to coordinate ball stud
100。
The bottom of the pump housing 1 is also sealedly connected with a cylindrical bracket 7, and the bottom of bracket 7 is equipped with sealing cover 71, power source 8
The sealed lid 71 of submersible motor output shaft 81 perforate and inside camshaft 4 link into an integrated entity.The top edge of the bracket 7 with
The bottom margin of the pump housing 1 is welded in the case where assembling completion status, so that power end b and fluid end a be become one.Cam
Axis 4 is the multi-diameter shaft of the multiple steps of tool below the cam structure on top, including positioned at 1 shoulder of the pump housing and 7 top bar of bracket
Middle part 42 between face, and the lower part 43 between 7 leave from office terrace of bracket and bottom end cover 71, wherein, middle part 42 mainly leads to
Bearing holder (housing, cover) 91, main sliding bearing 92, secondary sliding bearing 93 and principal plane roller pair 94 is crossed rotatably to set, and bearing holder (housing, cover) 91
Centre is equipped with trapped fuel pond 911, and lower part is mainly rotatably set by secondary plane roller pair 95 and realized by coupling band 96 and key
With the connection of submersible motor output shaft 81.
Specifically, main sliding bearing 92 is disposed upon in the endoporus of bearing holder (housing, cover) 91, which is firmly to hard with camshaft 4
Rub furan, and main function is the radial force for eliminating camshaft 4.Bearing holder (housing, cover) 91 controls radially, axially power for camshaft 4, it pacifies
Put and be positioned between principal plane roller pair 94 and bracket 7, thereon end face placement principal plane roller pair 94, the main sliding axle of bore placement
Hold 92, lower face is positioned by the terrace of appearing on the stage of bracket 7, secondary sliding bearing 93 is disposed in the endoporus of lower face, centre is trapped fuel pond
911.Secondary sliding bearing 93 is with camshaft for firmly to hard friction pair, the main radial force for eliminating camshaft 4 and main sliding bearing
92 carry on a shoulder pole radial load altogether.The effect of major and minor plane roller pair 94,95 is can to eliminate play above and below the axial force and control of camshaft,
The major and minor plane roller pair 94,95 is free of retainer, is made of the upper and lower cover and roller of split, upper cover plane is close to cam
On the step lower plane (baseplane of cam structure) of axis, mediate roller be placed in upper cover, lower cover spherical groove in, if placement
Untill a dry roller is piled, mutual gap, secondary 95 positioning of plane roller pair is attached on the leave from office terrace of bracket 7, and lower cover is by locking
Baffle ring and spelling cap 97 position, with 4 corotation of camshaft.Bottom end cover 71 is equipped with locating shoulder and the lower face shoulder of the pump housing coordinates,
Both are fixed with bolt.Sealing ring is installed in the endoporus of bottom end cover 71 and forms friction pair with coupling band 96, control lubricating oil is past
Leaked in medium, the terminal surface of bottom end cover 71 is also equipped with locating shoulder, for disposing submersible motor 8.4 most end end mill of camshaft
The output axis connection for having keyway and submersible motor 8 forms a rotating motion part.Camshaft 4 is installed by said structure, effectively
Axial force and radial load are eliminated, reaches the conveying requirement for meeting oil into medium solid-liquid two-phase.
By the pump housing 1 (designing pump housing outside diameter by oil jacket pipe orifice 5 ", 6 "), bracket 7 and silently 14, bottom end cover 71 forms
The cylindrical shell of this oil well pump, enclosure set fluid end, power end, and the upper connection tapping line of shell, bottom is even
Submersible motor is connect, is consequently formed rotation and the integrated latent oil oil well pump of reciprocalfunction of the present invention.
The operation principle of this oil well pump approximately as：
Whole pump goes into the well to fix proposes positioning work by drain pipe, and oil well pump works in suitable liquid level, submersible motor
In the bottom of pump, cable is connected against the outside diameter gap of pump toward the extraction of well face by control room.Put down when submersible motor rotation drives
When face cam axis rotates, the slope driving stopper head of plane cam axis slides in camshaft inclined-plane toroidal cavity, and carries out
Move back and forth.That is the camshaft 4 of power end b is rotated by power source 8, the column that fluid end a lower parts are connected with inclined-plane 41
Plug 3 rises and falls under the rotation on inclined-plane 41 with inclined-plane 41, i.e., when position higher on inclined-plane 41 and 3 lower end of plunger offset, plunger 3
High point is moved up to, when position relatively low on inclined-plane 41 offsets with 3 lower end of plunger, plunger 3 moves downwardly to low spot, so that
Each plunger 3 is set alternately to pump.The three-cylinder plunger pump of the present embodiment, every 120 degree of plungers 3 ibid move ahead once,
The acting of first cylinder plug is to preceding dead point, and the second cylinder plug on 50% move ahead, pulled back after disk retracts and move back only by the 3rd cylinder plug
Dead point, when plunger moves ahead, liquid feed valve is closed, tapping valve opens liquid discharge, and iterative cycles are to reach piston reciprocation, valve opens and closes
Feed liquor, discharge opeing effect, and the medium that each cylinder is discharged through tapping valve after the concentration runner among the pump housing by entering the row on end face
Liquid pipe line discharges ground.The continuous continuous operation of so each combination valve 2, substantially increases pumping efficiency.
Claims (8)
- A kind of 1. vertical plunger oil-well pump fluid end of latent well formula multi-cylinder, it is characterised in that：Group including the pump housing and in the pump housing Valve, plunger are closed, the combination valve uses integrative-structure of the tapping valve in upper, liquid feed valve under, which has at least two simultaneously Circumferentially it is distributed in each combination valve valve chamber on pump housing top, and the admission chamber of each combination valve is corresponding with one and is located at the pump Inlet on body sidewall, admission chamber and exhaust chamber perforation of each inlet through corresponding combination valve are located at the pump housing Middle concentration runner, so that tapping line of the medium through concentrating runner and being connected on outside at the top of the pump housing on leakage fluid dram discharges ground Face；The lower section of each combination valve is corresponding with a plunger, and each plunger can be up or down by kinetic hermetic subassembly In respective plunger channel, each plunger channel is corresponded in the combination valve valve chamber and penetrated through；It is described each Plunger is designed to spherical surface body head with respect to one end of oil well pump power end.
- 2. the vertical plunger oil-well pump fluid end of latent well formula multi-cylinder according to claim 1, it is characterised in that：The combination Valve includes：Valve body, using feed liquor valve base and discharge opeing valve base Integral design；Upper and lower spool, is respectively provided on the upper lower valve port of valve body, and to misplace, 180 degree is arranged up and down, the upper and lower spool Using can rotation hemisphere valve core structure；Upper and lower spherical limiting valve bonnet, is respectively provided at two of valve body, and the upper and lower spool is covered on corresponding limit valve In cover, make the upper and lower spool can the sliding, and on upper and lower spherical limiting valve bonnet up and down in corresponding spherical limiting valve bonnet It is respectively equipped with spherical limiting point；Upper and lower spring, is respectively provided between spherical limiting valve bonnet and upper valve core, and the spacing valve bonnet of lower peripheral surface and bottom spool it Between.
- 3. the vertical plunger oil-well pump fluid end of latent well formula multi-cylinder according to claim 1, it is characterised in that：The pump housing For cylinder.
- 4. the vertical plunger oil-well pump fluid end of latent well formula multi-cylinder according to claim 1, it is characterised in that：The each group The admission chamber for closing valve is formed after carrying out upper-lower seal by the valve chamber in the pump housing, and the exhaust chamber is to be located at each combination valve Upper surface and communicated with the concentration runner among body top.
- 5. the vertical plunger oil-well pump fluid end of latent well formula multi-cylinder according to claim 4, it is characterised in that：The plunger Connected and composed by the plunger body on top and the stopper head of lower part, and the spherical surface body head is formed with the stopper head Portion；The plunger body is determined by the motion seal part that is mainly made of major and minor guide sleeve and positioned at motion seal part upper end Position circle is positioned in respective plunger channel.
- 6. the vertical plunger oil-well pump fluid end of latent well formula multi-cylinder according to any claim in Claims 1 to 5, it is special Sign is：The plunger lower end is provided with the withdrawing device being connected that it can rotate with oil well pump power end.
- 7. the vertical plunger oil-well pump fluid end of latent well formula multi-cylinder according to claim 6, it is characterised in that：Described pulls back Device includes a disk of pulling back being arranged on above camshaft inclined-plane, and spherical groove is configured on the periphery wall for disk of pulling back, corresponding Ground the plunger it is cylindrical on be formed with the matched spherical male round platform of spherical groove, spherical male round platform and pull back on disk Spherical groove forms friction pair and camshaft synchronous rotary；Spherical surface body on the plunger is to be arranged on the spherical male Below round platform.
- 8. the vertical plunger oil-well pump fluid end of latent well formula multi-cylinder according to claim 7, it is characterised in that：Described pulls back Device further includes one and is located at the support block pulled back between disk and camshaft, and the lower part of support block is positioned in the inclined-plane of camshaft Between cavity in, top is in convex spherical and is located at the concave ball surfaces of tray bottom of pulling back and coordinates sphere sliding pair in a pair；It is described The central axial of pull back disk and support block be equipped with corresponding bolt hole and them is fixed together by bolt and camshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711443737.0A CN107989779A (en) | 2017-12-27 | 2017-12-27 | A kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711443737.0A CN107989779A (en) | 2017-12-27 | 2017-12-27 | A kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107989779A true CN107989779A (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711443737.0A Pending CN107989779A (en) | 2017-12-27 | 2017-12-27 | A kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202746185U (en) * | 2012-08-14 | 2013-02-20 | 宁波合力机泵有限公司 | Dual-guide conical valve with non-metallic seal and hydraulic cylinder body structure thereof |
| CN203114547U (en) * | 2013-02-01 | 2013-08-07 | 重庆祥云机械制造有限公司 | Valve control axial plunger pump |
| CN105317670A (en) * | 2014-07-28 | 2016-02-10 | 中国石油天然气股份有限公司 | Magnetic-suspension swash plate type axial plunger pump |
| CN207647748U (en) * | 2017-12-27 | 2018-07-24 | 宁波合力机泵股份有限公司 | A kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder |
-
2017
- 2017-12-27 CN CN201711443737.0A patent/CN107989779A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202746185U (en) * | 2012-08-14 | 2013-02-20 | 宁波合力机泵有限公司 | Dual-guide conical valve with non-metallic seal and hydraulic cylinder body structure thereof |
| CN203114547U (en) * | 2013-02-01 | 2013-08-07 | 重庆祥云机械制造有限公司 | Valve control axial plunger pump |
| CN105317670A (en) * | 2014-07-28 | 2016-02-10 | 中国石油天然气股份有限公司 | Magnetic-suspension swash plate type axial plunger pump |
| CN207647748U (en) * | 2017-12-27 | 2018-07-24 | 宁波合力机泵股份有限公司 | A kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder |
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