CN202883334U - Fluid power drive oil well pump - Google Patents
Fluid power drive oil well pump Download PDFInfo
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- CN202883334U CN202883334U CN 201220212531 CN201220212531U CN202883334U CN 202883334 U CN202883334 U CN 202883334U CN 201220212531 CN201220212531 CN 201220212531 CN 201220212531 U CN201220212531 U CN 201220212531U CN 202883334 U CN202883334 U CN 202883334U
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- 239000003129 oil well Substances 0.000 title claims abstract description 28
- 239000012530 fluid Substances 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000008859 change Effects 0.000 claims abstract description 9
- 230000009183 running Effects 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims description 40
- 239000003921 oil Substances 0.000 claims description 24
- 230000009466 transformation Effects 0.000 claims description 10
- 210000000664 rectum Anatomy 0.000 claims description 7
- 239000010779 crude oil Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 206010000234 Abortion spontaneous Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 208000015994 miscarriage Diseases 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 208000000995 spontaneous abortion Diseases 0.000 description 1
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Abstract
The utility model relates to a fluid power drive oil well pump which can be driven through ground motive power, and also can be driven through a down hole hydraulic pump. A reversing valve which control reciprocating motion comprises a valve seat, a hollow valve body and a sliding rod. Two ends of the valve body are in a circular cone shape, and respectively correspond to two sealing lines of the valve seat. A variable pressure cavity is formed in the end portion of the valve body. One end of the sliding rod is installed in the hollow valve body. An annular channel is formed between the sliding rod and an inner hole of the valve body. Initial motion of the reversing valve is provided by a valve rod and then the reversing valve is pushed to a phase change position through hydraulic pressure. The motion direction of a plunger is changed through closing and opening of the liquid flow channel. A plunger rod is driven to be stretched out and retracted through reciprocating motion of the plunger. Due to the fact that the liquid variable pressure cavity is formed in the reversing valve, stable and rapid reversion of the reversing valve can be achieved at a quite lower running speed, the fluid power drive oil well pump is enabled to be reliable in operation, long in service life and free of leakage in working due to the fact line sealing is adopted for the reversing valve.
Description
Technical field:
The utility model relates to the hydraulic drive oil well pump of oil mining, relates in particular to the reciprocating reversing arrangement of a kind of control hydraulic drive oil well pump.
Background technique:
Increasing deviated well and horizontal well has appearred in development and variation along with petroleum drilling technology, and comprising a large amount of small displacement oil well and gas well, therefore, the rodless pumping unit that adapts in recent years the exploitation of small displacement inclined shaft has had large development.Only have in numerous small displacement rodless pumping operation equipment and adopt the fluid power plunger pump of down-hole reversing arrangement most effective, manufacture cost is also lower.The power of this plunger pump can be the power fluid from ground, also can be provided by the oil hydraulic pump that the down-hole oil-submersible motor drives.The to-and-fro motion of power plunger is to be finished by the mechanical commutation valve that is contained in the pump, and the spool of selector valve has two location statuss, and the change in location of spool is to be dragged by plunger by the slide bar that is connected with it to finish.During the diverse location of spool in sliding sleeve, the duct on it will change the trend of power fluid, thereby realizes the to-and-fro motion of plunger.U. S. Patent 4591320 and 2008/0003118 has successively been announced the hydraulic defueling pump with this mechanical commutation valve, the common feature of the selector valve of putting down in writing in these two parts of documents is that slide bar and the spool that they all will drive spool action has been assembled into an integral body, in this integrative-structure, when slide bar band movable valve plug from a change in location during to the another location, must be through an intermediateness between two positions, hereinto during location status the feed flow duct on the spool and backflow duct all be subject to valve pocket and block, because closing of two ducts, plunger has also just lost the power from high pressure liquid stream, and pump has also just stopped work.This mechanical commutation valve can't be realized the order ground that commutates when low cruise.In addition, the selector valve of putting down in writing in these two parts of documents all is to adopt the Valve with sliding bush structure, will produce severe leakage when power fluid viscosity is low, requires also very harsh to turbidity test and the lubricity of power fluid simultaneously.
Summary of the invention:
The utility model provides a kind of hydraulic drive oil well pump with the down-hole selector valve, and this oil well pump can realize under very low motion speed that steadily commutation is to reach the purpose that improves reliability and increase operating life.
Another purpose of the present utility model provides a kind of hydraulic drive oil well pump, and this pump can use uncleanly water as the operating cost of power fluid with the reduction system.
Hydraulic drive oil well pump provided by the utility model comprises pump barrel 80, be connected to cylinder barrel 76 lower ends, discharge valve 82 is housed in the pump barrel lower end and sucks valve 83, plunger rod 73 to-and-fro motion under plunger promotes impels suction valve 83 and discharges valve 82 alternately opening and closing, with crude oil inspiration and discharge pump chamber 81, it also comprises Pump Suction Nozzle 84, pump discharge 92 and output oil pipe 90.The reciprocating selector valve of control plunger is installed in the upper end of cylinder barrel 76, selector valve comprises valve seat 10, hollow valve body 20, slide bar 30, sliding sleeve 50 and supporting sleeve 60, the first seal ring 13 is housed on the valve seat 10, the second seal ring 14, between two seal rings, be provided with the first intercommunicating pore 12, the first intercommunicating pore 12 and runner 43 are communicated with, one end of hollow valve body is provided with the first cylndrical surface 23, slide bar 30 is contained in the hollow valve body 20, between hollow valve body 20 and slide bar 30, form annular pass 42, between the interior latus rectum of hollow valve body 20 and valve seat 10, form simultaneously annular pass 41, the first cylndrical surface 23 of hollow valve body 20 and the little internal diameter position of sliding sleeve 50 are movingly, form motive sealing, the 3rd seal ring 52 is housed on the sliding sleeve 50, and be provided with the second intercommunicating pore 51, the second intercommunicating pore 51 is communicated with return flow line 45, supporting sleeve 60 compresses sliding sleeve 50, the 4th seal ring 63 is housed on it, and be provided with third connecting hole 61 and the 4th intercommunicating pore 64, third connecting hole 61 is communicated with high pressure runner 44, the 4th intercommunicating pore 64 is communicated with runner 43, slide bar 30 cooperates the formation motive sealing with supporting sleeve 60 little internal diameter positions, the inner chamber of supporting sleeve 60 forms transformation chamber 46, slide bar 30 passes through plunger 70 and enters hollow plunger bar 73 from the center, the first motive sealing 71 is housed on the plunger 70, and be provided with spiracle 74, at the reducing position of cylinder barrel 76 the second motive sealing 72 is housed, form the first chamber 47 in plunger large-section one side, and be communicated with the 4th intercommunicating pore 64, form the second chamber 48 in its circular crosssection one side, and be communicated with high pressure runner 44, be equipped with first on the slide bar 30 and trigger block 31 and the second triggering block 32, be provided with choked flow boss 35 on the slide bar 30 simultaneously, limit baffle ring 33 and limit baffle ring 34 also are housed on the slide bar, when moving to the stroke end, plunger promotes the limit baffle ring on the slide bar and promotes valve body with the triggering block on the moving slide-bar to move, close and open liquid chunnel and change moving direction with drive plunger, and drive plunger rod 73 and stretch out and retracts, replace opening and closing well liquid is lifted to ground thereby make the suction valve 83 of pump barrel end and get rid of valve 82.
Hydraulic drive oil well pump of the present utility model also can drive with the power fluid that the underground liquid press pump provides, it comprises pump barrel 80a, be connected to cylinder barrel 76 upper ends, discharge valve 82a is housed in the pump barrel upper end and sucks valve 83a, plunger rod 73 to-and-fro motion under plunger promotes impels suction valve 83 and discharges valve 82 alternately opening and closing, with crude oil inspiration and discharge pump chamber 81a, it also comprises Pump Suction Nozzle 84a, pump discharge 92a and output oil pipe 90a.It is to send electric energy to oil-submersible motor 101 by power cable 100, oil-submersible motor drives oil hydraulic pump 102 runnings, the suction port 103 of oil hydraulic pump 102 is communicated with return flow line 45 on the control plunger 70 reciprocating selector valves, the exhaust port 104 of oil hydraulic pump is communicated with first flow 40 on the selector valve, selector valve also comprises valve seat 10, hollow valve body 20, slide bar 30, sliding sleeve 50 and supporting sleeve 60, the first seal ring 13 is housed on the valve seat 10, the second seal ring 14, between two seal rings, be provided with the first intercommunicating pore 12, the first intercommunicating pore 12 and the second runner 43 are communicated with, one end of hollow valve body 20 is provided with the first cylndrical surface 23, slide bar 30 is contained in the hollow valve body 20, between hollow valve body 20 and slide bar 30, form the second annular pass 42, between the interior latus rectum of hollow valve body 20 and valve seat 10, form simultaneously the first annular pass 41, the first cylndrical surface 23 of hollow valve body and the little internal diameter position of sliding sleeve 50 are movingly, form motive sealing, the 3rd seal ring 52 is housed on the sliding sleeve 50, and be provided with the second intercommunicating pore 51, the second intercommunicating pore 51 is communicated with return flow line 45, supporting sleeve 60 compresses sliding sleeve 50, the 4th seal ring 63 is housed on it, and be provided with third connecting hole 61 and the 4th intercommunicating pore 64, third connecting hole 61 is communicated with high pressure runner 44, the 4th intercommunicating pore 64 is communicated with the second runner 43, slide bar 30 cooperates with supporting sleeve 60 little internal diameter positions, form motive sealing, the inner chamber of supporting sleeve 60 forms transformation chamber 46, slide bar 30 passes through plunger 70 and enters hollow plunger bar 73 from the center, the first motive sealing 71 is housed on the plunger 70, and be provided with spiracle 74, at the reducing position of cylinder barrel 76 the second motive sealing 72 is housed, form the first chamber 47 in plunger large-section one side, and be communicated with the 4th intercommunicating pore 64, form the second chamber 48 in its circular crosssection one side, and be communicated with high pressure runner 44, be equipped with first on the slide bar 30 and trigger block 31 and the second triggering block 32, the first limit baffle ring 33 and the second limit baffle ring 34 also are housed on the slide bar, also be provided with choked flow boss 35 on the slide bar 30, when moving to the stroke end, plunger 70 promotes the limit baffle ring on the slide bar and promotes hollow valve body 20 with the triggering block on the moving slide-bar to move, close and open liquid chunnel and change moving direction with drive plunger 70, and drive plunger rod 73 and stretch out and retract.
Hydraulic drive oil well pump of the present utility model can be realized steadily fast commutation owing to be provided with fluid transformation chamber in its selector valve, thereby make whole pumping system reliable that operating life increases under very low motion speed.Because valve seat and the valve body of selector valve are linear sealings, selector valve does not leak at work.Moreover, adopting another benefit of linear sealing is that valve body can be not stuck because power fluid has impurity.Therefore hydraulic drive oil well pump of the present invention can be cooked power fluid with uncleanly water, and this will make the operating cost of system significantly reduce.
First preferred implementation is the hydraulic drive oil well pump that Surface power drive liquid drives.
Another preferred implementation is the hydraulic drive oil well pump that the underground liquid press pump drives.
Below in conjunction with accompanying drawing preferred implementation of the present utility model is specifically described.
Description of drawings:
Figure 1A is the section of structure of hydraulic drive oil well pump of the present utility model its selector valve when up stroke.
Figure 1B is the structure sectional view of hydraulic drive oil well pump of the present utility model its selector valve when down stroke.
Fig. 2 is valve seat and the valve body structure sectional view that amplifies.
Fig. 3 A is the structure sectional view of hydraulic defueling pump when up stroke that Surface power drive liquid drives.
Fig. 3 B is the structure sectional view of hydraulic defueling pump when down stroke that Surface power drive liquid drives.
Fig. 4 is the hydraulic oil suction pump structure sectional view that the underground liquid press pump drives.
Embodiment:
At first see Figure 1A, Figure 1B and Fig. 2 selector valve part, it comprises valve seat 10, hollow valve body 20, slide bar 30, sliding sleeve 50 and supporting sleeve 60.The first seal ring 13, the second seal ring 14 are housed on the valve seat 10, between two seal rings, be provided with the first intercommunicating pore 12, the first intercommunicating pore 12 and the second runner 43 are communicated with, and are the first potted line 11a and the second potted line 11b between the upper and lower end face of valve seat 10 and its interior latus rectum.Hollow valve body 20 is provided with the first conical surface 21a and the second conical surface 21b, is provided with the second cylndrical surface 22a near the first conical surface 21a, is provided with three cylindrical face 22b near the second conical surface 21b, and an end of hollow valve body 20 also is provided with the first cylndrical surface 23.Slide bar 30 is contained in the hollow valve body 20, between valve body 20 and slide bar 30, form the second ring runner 42, between the interior latus rectum of valve body 20 and valve seat 10, form simultaneously the first annular pass 41, the first cylndrical surface 23 of hollow valve body and the little internal diameter position of sliding sleeve 50 are movingly, form motive sealing, the 3rd seal ring 52 is housed on the sliding sleeve 50, and is provided with the second intercommunicating pore 51, the second intercommunicating pores 51 and is communicated with return flow line 45.Supporting sleeve 60 compresses sliding sleeve 50, the 4th seal ring 63 is housed on it and is provided with third connecting hole 61 and the 4th intercommunicating pore 64, third connecting hole 61 is communicated with high pressure runner 44, the 4th intercommunicating pore 64 is communicated with the second runner 43, and stopping device 62 also is housed on the supporting sleeve 60, and its effect is to prevent the slide bar play, slide bar 30 cooperates with supporting sleeve 60 little internal diameter positions, form motive sealing, the inner chamber of supporting sleeve 60 forms transformation chamber 46, also will describe in detail below it acts on.Slide bar 30 passes through plunger 70 and enters hollow plunger bar 73 from the center, the first motive sealing 71 is housed on the plunger 70, and be provided with spiracle 74, at the reducing position of cylinder barrel 76 the second motive sealing 72 is housed, form the first chamber 47 in plunger large-section one side, and be communicated with the 4th intercommunicating pore 64, form the second chamber 48 in its circular crosssection one side, and be communicated with high pressure runner 44.Be equipped with first on the slide bar 30 and trigger block 31 and the second triggering block 32, be contained in respectively near the upper and lower end of hollow valve body, wherein the first triggering block 31 is provided with water conservancy diversion opening 31a, the first limit baffle ring 33 and the second limit baffle ring 34 also are housed on the slide bar, are contained in respectively and approach the up and down position of stroke end.Figure 1A again, the first conical surface 21a on the hollow valve body and the first potted line 11a on the valve seat 10 close the first ring runner 41 at this moment, high-pressure liquid from first flow 40 enters the second ring runner 42 by water conservancy diversion opening 31a, the transformation of then flowing through chamber 46, third connecting hole 61 and high pressure runner 44 enter the second chamber 48 and promote plungers 70 towards the motion of arrow direction, and the liquid in the first chamber 47 enters return line 45 by flow through the second runner 43 and the first intercommunicating pore 12 of the 4th intercommunicating pore 64 simultaneously.When plunger with after the first limit baffle ring 33 on the slide bar contacts, slide bar moves along same direction under the promotion of plunger, then the second triggering block 32 promotion valve bodies 20 on the slide bar move, this moment is not because the second cylndrical surface 22a on the valve body also breaks away from the endoporus of valve seat, high-pressure liquid does not change flow direction, continuing pushing piston and slide bar travels forward, when the second cylndrical surface 22a just will break away from valve seat 10 endoporus, the three cylindrical face 22b of hollow valve body enters the valve seat endoporus, this moment, the first annular pass 41 was open-minded, (seeing Figure 1B) closed in return flow line 45, liquid stream is by the first annular pass 41, the first intercommunicating pore 12, the second runner 43 and the 4th intercommunicating pore 64 enter the first chamber 47, because plunger two end sections are different, liquid stream forces plunger towards the arrow direction motion of Figure 1B, fluid in the second chamber 48 enters transformation chamber 46 via high pressure runner 44 and third connecting hole 61 simultaneously, what need to cause concern is that boss 35 on the slide bar has entered the second annular pass 42 this moment, damping function has been given birth in this liquid miscarriage to this passage of flowing through, therefore the pressure in the transformation chamber 46 can raise to some extent, valve body moves to rapidly Figure 1B and position shown in Figure 2 under this pressure-acting, and the second potted line 11b on the second conical surface 21b and the valve seat 10 sets.Converge jointly through the second annular pass 42 and high-pressure liquid in the first flow 40 from transformation chamber 46 fluid out and to enter the first chamber 47 via the second runner 43.Slide bar is pulled when plunger 70 touches the second limit baffle ring 34 on the slide bar, driving simultaneously the first triggering block 31 promotion hollow valve bodies 20 moves, and finish valve body commutation according to similar above-mentioned process, thereby drive plunger changes moving direction, and drive plunger rod 73 and stretch out and retract.
Fig. 3 A and Fig. 3 B be respectively the hydraulic drive oil well pump that drives of Surface power drive liquid thereon, the structure principle chart of down stroke.It has installed conventional oil well pump parts additional by the selector valve shown in Figure 1A and Figure 1B and has formed.Wherein 80 is pump barrels, be connected with the bottom of cylinder barrel 76, and the 81st, the inner chamber of pump barrel, the 82nd, discharge valve, the 83rd, suck valve, the 84th, Pump Suction Nozzle, the 90th, output oil pipe, the 92nd, pump discharge, the 91st, fuel-displaced annular pass.Selector valve impels plunger and plunger rod to-and-fro motion according to aforesaid control procedure under the power fluid effect, when plunger rod 73 when upwards moving shown in Fig. 3 A, inhale valve 83 and open, discharge valve 82 and close, oil stream enters pump chamber 81 by pump intake 84.When plunger rod 73 during according to operation downwards shown in Fig. 3 B, plunger rod 73 forces and sucks valve 83 and close, and discharges valve 82 and opens, and the crude oil in the pump chamber 81 enter pipeline 91 via pump discharge 92 and drain into ground.The return flow line 45 that need to prove lean liquor can be that closed circuit flow process is returned separately ground, also can be that the open circuit flow process is communicated with fuel-displaced runner 91.
Fig. 4 is that the hydraulic drive oil well pump of underground liquid press pump driving is at the structure principle chart of down stroke.It has installed conventional oil well pump parts, power cable, oil-submersible motor and oil hydraulic pump etc. additional by the selector valve shown in Figure 1A and Figure 1B and has formed.Power cable 100 provides electric energy from ground to down-hole oil-submersible motor 101, and oil-submersible motor 101 rotates and drives oil hydraulic pumps 102 runnings, and oil hydraulic pump 102 is as the transmission of power medium with hydraulic oil or dynamo oil.The 103rd, the oil hydraulic pump suction port, it is connected with return flow line 45 on the selector valve, and the 104th, the high-pressure outlet of oil hydraulic pump, it is connected with first flow 40 on the selector valve.When selector valve is in position shown in Figure 4, enter the second chamber 48 from the high pressure oil of oil hydraulic pump outlet 104 via the second annular pass 42 and high pressure runner 44 and promote plungers 70 and move downwards, the first chamber 47 interior liquid turn back to oil hydraulic pump entrance 103 via the 4th intercommunicating pore 64, the second runner 43, the first annular pass 41 and return flow line 45.Pump barrel 80a also is equipped with in upper end at cylinder barrel 76,81a is pump chamber, 82a discharges valve, and 83a sucks valve, and 84a is Pump Suction Nozzle, 90a is oil pipe, 92a is pump discharge, when plunger rod 73 during according to downward operation shown in Figure 4, discharges valve 82a and closes, suck valve 83a and open, liquid is via pump intake inspiration pump chamber 81a.The up working procedure of plunger all is the same with the mode that Surface power drive liquid drives, and no longer repeats.
Above-described only is preferred implementation of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the principle of the invention, can also make some conversion and improvement, these also should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. hydraulic drive oil well pump that drives with the ground power fluid, it comprises pump barrel (80), be connected to cylinder barrel (76) lower end, discharge valve (82) is housed in the pump barrel lower end and sucks valve (83), plunger rod (73) to-and-fro motion under plunger (70) promotes impels suction valve and discharge valve to replace opening and closing, with crude oil inspiration and discharge pump chamber (81), it also comprises Pump Suction Nozzle (84), pump discharge (92) and output oil pipe (90), it is characterized in that: the reciprocating selector valve of control plunger (70) is installed in the upper end of cylinder barrel (76), selector valve comprises valve seat (10), hollow valve body (20), slide bar (30), sliding sleeve (50) and supporting sleeve (60), the first seal ring (13) is housed on the valve seat (10), the second seal ring (14), between two seal rings, be provided with the first intercommunicating pore (12), the first intercommunicating pore (12) and the second runner (43) are communicated with, one end of hollow valve body (20) is provided with the first cylndrical surface (23), slide bar (30) is contained in the hollow valve body (20), between hollow valve body (20) and slide bar (30), form the second annular pass (42), between the interior latus rectum of hollow valve body (20) and valve seat (10), form simultaneously the first annular pass (41), first cylndrical surface (23) of hollow valve body and the little internal diameter position of sliding sleeve (50) are movingly, form motive sealing, the 3rd seal ring (52) is housed on the sliding sleeve (50), and be provided with the second intercommunicating pore (51), the second intercommunicating pore (51) is communicated with return flow line (45), supporting sleeve (60) compresses sliding sleeve (50), the 4th seal ring (63) is housed on it, and be provided with third connecting hole (61) and the 4th intercommunicating pore (64), third connecting hole (61) is communicated with high pressure runner (44), the 4th intercommunicating pore (64) is communicated with the second runner (43), slide bar (30) cooperates the formation motive sealing with the little internal diameter of supporting sleeve (60) position, the inner chamber of supporting sleeve (60) forms transformation chamber (46), slide bar (30) passes through plunger (70) and enters hollow plunger bar (73) from the center, the first motive sealing (71) is housed on the plunger (70), and be provided with spiracle (74), at the reducing position of cylinder barrel (76) the second motive sealing (72) is housed, one side forms the first chamber (47) in plunger (70) large-section, and be communicated with the 4th intercommunicating pore (64), form the second chamber (48) in its circular crosssection one side, and be communicated with high pressure runner (44), be equipped with first on the slide bar (30) and trigger block (31) and the second triggering block (32), the first limit baffle ring (33) and the second limit baffle ring (34) also are housed on the slide bar, plunger (70) promotes the limit baffle ring on the slide bar and promotes valve body with the triggering block on the moving slide-bar to move when moving to the stroke end, close and open liquid chunnel and change moving direction with drive plunger (70), and drive plunger rod (73) and stretch out and retract.
2. hydraulic drive oil well pump as claimed in claim 1 is characterized in that: be provided with choked flow boss (35) on the slide bar (30).
3. the hydraulic drive oil well pump that drives of a underground liquid press pump, it comprises pump barrel (80a), be connected to cylinder barrel (76) upper end, discharge valve (82a) is housed and sucks valve (83a) in the pump barrel upper end, plunger rod (73) to-and-fro motion under plunger (70) promotes impels suction valve (83a) and discharges alternately opening and closing of valve (82a), with crude oil inspiration and discharge pump chamber (81a), it also comprises Pump Suction Nozzle (84a), pump discharge (92a) and output oil pipe (90a), it is characterized in that: it is to send electric energy to oil-submersible motor (101) by power cable (100), oil-submersible motor drives oil hydraulic pump (102) running, the suction port (103) of oil hydraulic pump (102) is communicated with return flow line (45) on control plunger (70) the reciprocating selector valve, the exhaust port of oil hydraulic pump (104) is communicated with first flow (40) on the selector valve, selector valve also comprises valve seat (10), hollow valve body (20), slide bar (30), sliding sleeve (50) and supporting sleeve (60), the first seal ring (13) is housed on the valve seat (10), the second seal ring (14), between two seal rings, be provided with the first intercommunicating pore (12), the first intercommunicating pore (12) and the second runner (43) are communicated with, one end of hollow valve body (20) is provided with the first cylndrical surface (23), slide bar (30) is contained in the hollow valve body (20), between hollow valve body (20) and slide bar (30), form the second annular pass (42), between the interior latus rectum of hollow valve body (20) and valve seat (10), form simultaneously the first annular pass (41), first cylndrical surface (23) of hollow valve body (20) and the little internal diameter position of sliding sleeve (50) are movingly, form motive sealing, the 3rd seal ring (52) is housed on the sliding sleeve (50), and be provided with the second intercommunicating pore (51), the second intercommunicating pore (51) is communicated with return flow line (45), supporting sleeve (60) compresses sliding sleeve (50), the 4th seal ring (63) is housed on it, and be provided with third connecting hole (61) and the 4th intercommunicating pore (64), third connecting hole (61) is communicated with high pressure runner (44), the 4th intercommunicating pore (64) is communicated with the second runner (43), slide bar (30) cooperates with the little internal diameter of supporting sleeve position, form motive sealing, the inner chamber of supporting sleeve (60) forms transformation chamber (46), slide bar (30) passes through plunger (70) and enters hollow plunger bar (73) from the center, the first motive sealing (71) is housed on the plunger (70), and be provided with spiracle (74), at the reducing position of cylinder barrel (76) the second motive sealing (72) is housed, one side forms the first chamber (47) in plunger (70) large-section, and be communicated with the 4th intercommunicating pore (64), form the second chamber (48) in its circular crosssection one side, and be communicated with high pressure runner (44), be equipped with first on the slide bar (30) and trigger block (31) and the second triggering block (32), the first limit baffle ring (33) and the second limit baffle ring (34) also are housed on the slide bar, plunger (70) promotes the limit baffle ring on the slide bar and promotes valve body with the triggering block on the moving slide-bar to move when moving to the stroke end, close and open liquid chunnel and change moving direction with drive plunger (70), and drive plunger rod (73) and stretch out and retract.
4. such as claim 1 or 3 described hydraulic drive oil well pumps, it is characterized in that: hollow valve body (20) is provided with the first conical surface (21a) and the second conical surface (21b), be provided with the second cylndrical surface (22a) near the first conical surface (21a), be provided with three cylindrical face (22b) near the second conical surface (21b).
5. such as claim 1 or 3 described hydraulic drive oil well pumps, it is characterized in that: be provided with the first potted line (11a) and the second potted line (11b) between the upper and lower end face of valve seat 10 and its interior latus rectum, respectively the first conical surface (21a) and second conical surface (21b) of corresponding hollow valve body (20).
6. such as claim 1 or 3 described hydraulic drive oil well pumps, it is characterized in that: stopping device (62) is housed, in case on-slip bar (30) play on the supporting sleeve (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220212531 CN202883334U (en) | 2012-05-14 | 2012-05-14 | Fluid power drive oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220212531 CN202883334U (en) | 2012-05-14 | 2012-05-14 | Fluid power drive oil well pump |
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| Publication Number | Publication Date |
|---|---|
| CN202883334U true CN202883334U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220212531 Expired - Lifetime CN202883334U (en) | 2012-05-14 | 2012-05-14 | Fluid power drive oil well pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423135A (en) * | 2012-05-14 | 2013-12-04 | 崔迺林 | Hydraulic drive oil pump |
| CN105158446A (en) * | 2015-10-20 | 2015-12-16 | 北京瑞莱博石油技术有限公司 | High-temperature-resisting and high-pressure-resisting sealing piston, piston rod combination and thickened oil high-pressure texture analyzer |
| CN110966175A (en) * | 2019-12-11 | 2020-04-07 | 邓冠宇 | Hydraulic balance sealing plunger mud pump |
-
2012
- 2012-05-14 CN CN 201220212531 patent/CN202883334U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423135A (en) * | 2012-05-14 | 2013-12-04 | 崔迺林 | Hydraulic drive oil pump |
| CN103423135B (en) * | 2012-05-14 | 2016-02-17 | 崔迺林 | Hydraulic drive oil pump |
| CN105158446A (en) * | 2015-10-20 | 2015-12-16 | 北京瑞莱博石油技术有限公司 | High-temperature-resisting and high-pressure-resisting sealing piston, piston rod combination and thickened oil high-pressure texture analyzer |
| CN110966175A (en) * | 2019-12-11 | 2020-04-07 | 邓冠宇 | Hydraulic balance sealing plunger mud pump |
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