CN117685207A - Circulating exhaust type oil pump for oil field - Google Patents
Circulating exhaust type oil pump for oil field Download PDFInfo
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- CN117685207A CN117685207A CN202410154460.3A CN202410154460A CN117685207A CN 117685207 A CN117685207 A CN 117685207A CN 202410154460 A CN202410154460 A CN 202410154460A CN 117685207 A CN117685207 A CN 117685207A
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- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 239000003129 oil well Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 75
- 239000003208 petroleum Substances 0.000 claims description 30
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 238000000605 extraction Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention relates to the technical field of oil pumps, in particular to a circulating exhaust type oil pump for an oil field. The utility model provides an oil field is with circulation exhaust formula oil-well pump, including the pump barrel, the upside in the pump barrel is sliding connection has the plunger, the upside rigid coupling of plunger has the sucker rod, the downside rigid coupling in the pump barrel has the fixing base, be located in the pump barrel the plunger with the part of fixing base sets up to the oil storage cavity, the plunger is provided with first vertical hole, be provided with the valve that moves about in the first vertical hole, the fixing base is provided with the second vertical hole, be provided with fixed valve in the second vertical hole, the plunger is provided with the pressure hole that holds down of symmetric distribution. After the upstroke is finished, the travelling valve is immediately opened, and the closing speed of the travelling valve is slowed down after the downstroke is finished, so that the gas in the oil storage cavity is discharged, the fullness of the oil in the oil storage cavity is improved in a circulating continuous exhaust mode, and the occurrence of an airlock phenomenon is avoided.
Description
Technical Field
The invention discloses a circulating exhaust type oil pump for an oil field, which relates to the technical field of oil pumps.
Background
The oil pump is an oil field collecting tool for pumping underground petroleum into the ground, and is composed of a pump barrel, a plunger, a travelling valve, a fixed valve and the like, when the oil pump works, the sucker rod drives the plunger to reciprocate to complete the up-down stroke to continuously pump the petroleum from the oil well, but part of petroleum in stratum is mixed with gas, in the pumping process, the gas in stratum enters the pump barrel together with the petroleum and is accumulated in the pump barrel, and too much gas in the pump barrel can lead to the delay of opening the travelling valve and the fixed valve, so that the petroleum extraction amount is reduced, and even for some petroleum with too much gas content, the phenomenon of 'airlock' can be caused, so that the plunger only compresses the gas, but the petroleum cannot be discharged from the well.
Disclosure of Invention
The invention provides a circulating exhaust type oil pump for an oil field, which aims to solve the technical problem of air lock phenomenon caused by the existing oil pump.
The technical proposal is as follows: the utility model provides an oil field is with circulation exhaust formula oil-well pump, including the pump barrel, the upside in the pump barrel is slided and is connected with the plunger, the upside rigid coupling of plunger has the sucker rod, the downside rigid coupling in the pump barrel has the fixing base, be located in the pump barrel the plunger with the part of fixing base sets up to the oil storage cavity, the plunger is provided with first vertical hole, be provided with the travelling valve in the first vertical hole, the fixing base is provided with the second vertical hole, be provided with fixed valve in the second vertical hole, the plunger is provided with the pressure hole that holds down of symmetric distribution, hold down the pressure hole sliding connection have with travelling valve extrusion complex inserted bar, the inserted bar with the rigid coupling has first spring between the plunger, the plunger is provided with and is used for the drive the inserted bar extrusion travelling valve's actuating mechanism.
Further stated, the actuating mechanism is including symmetrical and evenly distributed's sealing plug, the plunger is provided with the logical groove of symmetric distribution, evenly distributed sealing plug sliding connection is in adjacent in the logical inslot, be located same in the logical inslot and evenly distributed be provided with the connecting piece between the sealing plug, be provided with the spacing ring in the logical inslot, keep away from the fixing base the sealing plug with the rigid coupling has the elastic component between the spacing ring adjacent of plunger, the connecting piece is close to the adjacency one side of holding down the pressure hole is provided with the guide frame, holding down pressure hole sliding connection has the push rod, the push rod rigid coupling have with adjacency guide frame complex rectangle frame, the plunger is provided with symmetric distribution and with adjacency holding down the guiding gutter of pressure hole intercommunication.
Further stated, a sealing ring is provided on the outside of the sealing plug for increasing the tightness between the sealing plug and the adjacent through groove.
Further stated, the guide frame is composed of a vertical part in the middle and inclined parts on the upper and lower sides.
Further, the sealing plug far away from the fixing seat is fixedly connected with the adjacent connecting piece, and the sealing plug close to the fixing seat is in limiting sliding connection with the adjacent connecting piece.
Further, the relative displacement between the sealing plug and the adjacent connecting piece near the fixing seat is smaller than the longitudinal moving distance of the sealing plug.
Further, the aperture of the diversion trench is smaller than the aperture of the pressure holding hole.
Further stated, one side of the plunger, which is close to the fixed seat, is provided with an arc surface for guiding the gas in the petroleum.
Further, the sealing plug close to the fixing seat is provided with an arc-shaped surface with the same bending degree as the arc-shaped surface of the plunger.
Further, the oil drainage device is arranged on the fixing base and used for discharging oil on the upper side of the fixing base, the oil drainage device comprises symmetrically-distributed ejector rods which are all slidably connected to the fixing base, the ejector rods are in extrusion fit with sealing plugs adjacent to the fixing base, the fixing base is slidably connected with symmetrically-distributed cross bars, triangular blocks are fixedly connected to the ejector rods and the cross bars, cylindrical cavities which are symmetrically distributed are formed in the fixing base, the triangular blocks are respectively located in the cylindrical cavities of the adjacent fixing base and are in limit fit with the triangular blocks, and a second spring is fixedly connected between the triangular blocks on the cross bars and the fixing base.
The invention has the following advantages: after the upstroke is finished, the travelling valve is immediately opened, gas entering the oil storage cavity is discharged into the upper side of the plunger through the first vertical hole, the closing speed of the travelling valve is slowed down after the downstroke is finished, so that the gas in the oil storage cavity is discharged, the fullness of petroleum in the oil storage cavity is improved in a circulating continuous exhausting mode, the phenomenon of 'airlock' is avoided, when a well is required to be washed or oil is drained from the oil pipe and the pump barrel, the sucker rod drives the plunger to be close to the fixed seat, the travelling valve and the fixed valve are simultaneously opened for oil drainage operation, and the petroleum is not brought into the ground when the oil pump drains oil, and a complicated treatment mode is not required.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of a perspective structure of a plunger and holder of the present invention;
FIG. 3 is a schematic perspective view of a driving mechanism according to the present invention;
FIG. 4 is a schematic perspective view of the plunger and the first spring of the present invention;
fig. 5 is a schematic perspective view of the oil drainage mechanism of the present invention.
Reference numerals in the figures: 1-pump cylinder, 101-oil storage cavity, 2-plunger, 201-first vertical hole, 202-pressure-holding hole, 203-through groove, 204-guiding groove, 3-fixing seat, 301-second vertical hole, 4-traveling valve, 5-fixed valve, 6-inserted link, 7-first spring, 8-sealing plug, 9-connecting piece, 901-guide frame, 10-elastic piece, 11-push rod, 12-rectangular frame, 13-push rod, 14-cross bar, 15-triangular block and 16-second spring.
Detailed Description
The invention is further described below with reference to the drawings and examples, and the oil pump is mainly used for extracting oil in an oil well containing gas, especially oil with high gas content, and has better oil pumping efficiency.
Example 1: the utility model provides an oil field is with circulation exhaust formula oil-well pump, as shown in fig. 1-4, including pump barrel 1, pump barrel 1 installs the lower extreme at oil pipe, the upside rigid coupling in pump barrel 1 has plunger 2, the upside rigid coupling of plunger 2 has the sucker rod, the downside rigid coupling in pump barrel 1 has fixing base 3, the part that lies in plunger 2 and fixing base 3 sets up as oil storage cavity 101 in pump barrel 1, plunger 2 is provided with first vertical hole 201, be provided with the traveling valve 4 in the first vertical hole 201, fixing base 3 is provided with second vertical hole 301, the diameter in the middle of first vertical hole 201 and second vertical hole 301 is greater than the diameter of its upper and lower both sides, be provided with fixed valve 5 in the second vertical hole 301, in carrying out the oil pumping process, the sucker rod drives plunger 2 reciprocating motion from top to bottom, oil extraction in the oil well, plunger 2 is provided with two lateral symmetry's pressure holes 202, the lateral arrangement of pressure holes 202, plunger 2 sliding connection has the inserted rod 6 with traveling valve 4 extrusion fit, be provided with after last stroke 6, the diameter between two inserted rod 6 drive valve 6 and the first vertical hole 101 and the second vertical hole 7, the diameter of the plug 6 is greater than the diameter of its two adjacent plug 4 is driven to be used for the piston 6 extrusion cavity is driven, the plug 6 is driven to be used for the stroke 6 to drive the displacement of the piston 6, the mechanism is closed after the stroke is finished, the stroke 6 is finished, the piston is driven to be used for the piston is driven to drive the piston 4 and has been provided with the jack 6.
As shown in fig. 2-4, the driving mechanism comprises four symmetrical and uniformly distributed sealing plugs 8, the plunger 2 is provided with two through grooves 203 which are symmetrically distributed left and right, the two sealing plugs 8 which are uniformly distributed left are slidably connected in the through groove 203 which is on the left, the two sealing plugs 8 which are uniformly distributed right are slidably connected in the through groove 203 which is on the right, the outer side of the sealing plugs 8 is provided with a sealing ring for increasing the tightness between the sealing plugs 8 and the adjacent through groove 203, a connecting piece 9 is arranged between the two sealing plugs 8 which are positioned in the same through groove 203 and are symmetrically distributed up and down, the sealing plug 8 on the upper side is fixedly connected with the adjacent connecting piece 9, the sealing plug 8 on the lower side is in limit sliding connection with the adjacent connecting piece 9, the relative displacement between the sealing plug 8 on the lower side and the adjacent connecting piece 9 is smaller than the longitudinal moving distance of the sealing plug 8, a limiting ring is arranged in the through groove 203, an elastic piece 10 is fixedly connected between a sealing plug 8 at the upper side and a limiting ring adjacent to a plunger 2, a guide frame 901 is arranged at the lower side of a connecting piece 9, a push rod 11 is slidably connected to one side of a pressure holding hole 202 close to an adjacent through groove 203, a rectangular frame 12 matched with the adjacent guide frame 901 is fixedly connected to one end of the push rod 11 close to the adjacent through groove 203, the guide frame 901 consists of a vertical part in the middle and inclined parts at the upper side and the lower side, in an initial state, the rectangular frame 12 is contacted with the upper side of the vertical part of the adjacent guide frame 901, the plunger 2 is provided with guide grooves 204 which are symmetrically distributed and are communicated with the adjacent pressure holding hole 202, the aperture of the guide grooves 204 is smaller than that of the pressure holding hole 202, when the push rod 11 is close to the travelling valve 4, petroleum in the adjacent pressure holding hole 202 cannot be discharged through the guide grooves 204, therefore, the push rod 11 pushes the plunger 6 to squeeze the travelling valve 4 through petroleum in the adjacent pressure holding hole 202, the lower side of the plunger 2 is provided with an arc surface, the lower surface of the lower side sealing plug 8 is provided with an arc surface with the same bending degree as the arc surface of the plunger 2, so that the integrity of the arc surface of the plunger 2 is ensured.
The oil pump utilizes the piston motion of the plunger 2 to perform the up stroke and the down stroke and complete the oil extraction, and the specific operation is as follows: in the process of the oil well pump in the upstroke, in the initial state, the plunger 2 is close to the fixed seat 3, the sucker rod drives the plunger 2 to move upwards, the plunger 2 is far away from the fixed seat 3, the plunger 2 pushes the oil on the upper side of the plunger 2 to move upwards and discharge from an oil well, the pressure in the oil storage cavity 101 is reduced, the travelling valve 4 seals the lower side of the first vertical hole 201, the fixed valve 5 moves upwards to remove the seal on the lower side of the second vertical hole 301, along with the continuous upward movement of the plunger 2, the oil on the lower side of the fixed seat 3 continuously enters the oil storage cavity 101 through the second vertical hole 301, the upstroke is finished, the oil storage cavity 101 is filled with the oil, after the upstroke is finished, the fixed valve 5 moves downwards under the action of self gravity to seal the lower side of the second vertical hole 301, in the process of the oil well pump in the downstroke, the sucker rod drives the plunger 2 to move downwards, the plunger 2 is close to the fixed seat 3, the pressure in the oil storage cavity 101 is increased, the oil between the oil storage cavities 101 moves upwards relative to the plunger 2, the travelling valve 4 removes the seal on the lower side of the first vertical hole 201, the petroleum between the oil storage cavities 101 continuously enters the first vertical hole 201, the first vertical hole 101, the oil storage cavity is filled with the first vertical hole 201, and the plunger 201 is recovered when the first vertical hole is finished, and the plunger 2 is finished.
Because part of the petroleum contains oil gas, in the process of petroleum extraction, gas in the petroleum enters the pump barrel 1 and is accumulated in the oil storage cavity 101, excessive gas accumulation can lead to opening lag of the traveling valve 4 and the fixed valve 5, the petroleum extraction process is affected, and when the plunger 2 performs piston motion, the gas pressure and the volume of the gas in the oil storage cavity 101 are only changed, no petroleum or a small amount of petroleum is discharged from an oil well, and an air lock phenomenon is caused, and the reason for the air lock phenomenon is as follows: the gas is easy to be compressed, for example, a large amount of gas exists in the oil storage cavity 101, when the piston 2 moves upwards in the process of performing an upstroke, the pressure of the gas in the oil storage cavity 101 is reduced, the reduced pressure in the oil storage cavity 101 can preferentially expand the volume of the gas, so that the fixed valve 5 cannot move upwards immediately, when the piston 2 moves downwards in the process of performing a downstroke, the pressure in the oil storage cavity 101 is increased, and the increased pressure in the oil storage cavity 101 can preferentially squeeze the gas, so that the volume of the gas is reduced, the pressure below the traveling valve 4 is insufficient, and the traveling valve 4 cannot be opened timely.
To solve the above problem, when the gas in the oil storage cavity 101 needs to be timely discharged, the traveling valve 4 is immediately opened after the end of the upstroke, the gas entering the oil storage cavity 101 is discharged into the upper side of the plunger 2 through the first vertical hole 201, and the closing speed of the traveling valve 4 is slowed down after the end of the downstroke, so that the gas in the oil storage cavity 101 is discharged, and the specific operation is as follows: in the process of up-stroke, in the initial state, the first spring 7 is in a compressed state, the right side of the rectangular frame 12 is positioned at the upper side of the vertical part of the guide frame 901 and does not enter the inclination of the upper side of the rectangular frame, the plunger 2 moves upwards, the pressure in the oil storage cavity 101 is reduced, the pressure difference is formed at the upper side and the lower side of the plunger 2, the pressure at the lower side of the plunger 2 is smaller than the pressure at the upper side, taking two sealing plugs 8 at the right side as an example, the two sealing plugs 8 at the right side drive a connecting piece 9 between the two sealing plugs to move downwards, the sealing plugs 8 at the upper side downwards enable the elastic piece 10 to be compressed, the connecting piece 9 drives the rectangular frame 12 to move rightwards through the guide frame 901, the rectangular frame 12 drives the push rod 11 to move rightwards, the pressure in the pressure holding hole 202 is reduced, part of petroleum in the first vertical hole 201 is pumped into the pressure holding hole 202 through the guide groove 204, the initial position of the inserted rod 6 is kept unchanged, and finally, the right side of the rectangular frame 12 is positioned at the upper side of the inclined part on the guide frame 901.
After the upper stroke is finished, the pressure difference between the upper side and the lower side of the plunger 2 disappears, the elastic piece 10 resets to drive the upper side sealing plug 8 to move upwards, the upper side sealing plug 8 is driven to move upwards by the connecting piece 9 to reset, the connecting piece 9 drives the guide frame 901 to move upwards, the guide frame 901 drives the rectangular frame 12 to move leftwards, the rectangular frame 12 drives the push rod 11 to move leftwards, because the aperture of the guide groove 204 is smaller than that of the pressure holding hole 202, only a small part of petroleum in the push rod 11 moves leftwards to be discharged into the first vertical hole 201 through the guide groove 204, most of petroleum in the pressure holding hole 202 pushes the insert rod 6 to move leftwards to squeeze the movable valve 4, the first spring 7 in a compressed state gradually resets, meanwhile, the insert rod 6 on the left side moves rightwards, and finally the movable valve 4 moves upwards under the extrusion of the two insert rods 6, the traveling valve 4 releases the blocking of the lower side of the first vertical hole 201, because the density of the gas is small, the gas in the oil storage cavity 101 is accumulated on the upper side in the oil storage cavity 101, after the traveling valve 4 is opened, the gas in the oil storage cavity 101 gradually enters the first vertical hole 201, because the lower side of the plunger 2 is an arc surface, the gas which moves upwards is guided, the gas discharging speed is improved, when the gas in the oil storage cavity 101 enters the first vertical hole 201, the oil in the first vertical hole 201 also fills the oil storage cavity 101, finally, the oil storage cavity 101 is fully filled with the oil, and after the traveling valve 4 is opened for a period of time, the traveling valve 4 also slowly moves downwards, the two inserted rods 6 are extruded by the traveling valve 4, and the inserted rods 6 move rightwards for example, so that the first spring 7 is compressed (the elasticity of the first spring 7 is smaller, the gravity of the traveling valve 4 is enough to enable the first spring 7 to be compressed), the oil in the pressure holding hole 202 is pushed to be discharged into the first vertical hole 201 through the diversion trench 204, finally, the traveling valve 4 plugs the lower side of the first vertical hole 201 again, after the upper stroke is finished, the right side of the rectangular frame 12 is located on the upper side of the vertical portion of the guide frame 901 again, and accordingly, the traveling valve 4 is opened through the inserted link 6 to exhaust gas in the oil storage cavity 101, the oil fullness in the oil storage cavity 101 is improved, and the phenomenon of air lock is avoided.
In the process of downstroke, the plunger 2 moves downwards, the pressure in the oil storage cavity 101 is increased, because the gas in the oil storage cavity 101 is discharged, the traveling valve 4 can be immediately opened, the petroleum in the oil storage cavity 101 enters the upper side of the plunger 2 upwards through the first vertical hole 201, in the process of downstroke of the plunger 2, the pressure on the lower side of the plunger 2 is larger than the pressure on the upper side, the two sealing plugs 8 drive the connecting piece 9 between the two sealing plugs to move upwards relative to the plunger 2, the elastic piece 10 is stretched, because the rectangular frame 12 is matched with the vertical groove of the guide frame 901, the guide frame 901 moves upwards and does not drive the rectangular frame 12 to move transversely, after the lower side of the first vertical hole 201 is not plugged by the traveling valve 4 any more, the traveling valve 4 moves upwards, the two first springs 7 reset to drive the adjacent inserted rod 6 to be close to the traveling valve 4, the inserted rod 6 is positioned on the lower side of the traveling valve 4, after the downstroke is finished, the pressure difference between the upper side and the lower side of the plunger 2 disappears, the two sealing plugs 8 drive the connecting piece 9 between the two sealing plugs to move downwards under the action of the elastic piece 10, the connecting piece 9 drives the guide frame 901 to move downwards and does not drive the rectangular frame 12 to move transversely, meanwhile, the push rod 11 also does not move transversely, after the downstroke is finished, the traveling valve 4 moves downwards under the gravity of the push rod 4, the traveling valve 4 contacts with the two inserting rods 6, the inserting rods 6 at the rear side are taken as an example, the traveling valve 4 presses the inserting rods 6 to move rightwards, the first spring 7 is compressed, the inserting rods 6 push petroleum in the holding holes 202 into the first vertical holes 201 through the guide grooves 204, the aperture of the guide grooves 204 is smaller, therefore, the inserting rods 6 move downwards slowly, the traveling valve 4 also moves downwards slowly, after the downstroke is finished, the traveling valve 4 is closed slowly, and gas in the oil storage cavity 101 is convenient to enter the first vertical holes 201, increasing the fullness of the oil in the oil storage cavity 101.
In the process of longitudinal movement of the sealing plug 8, the sealing ring at the outer side of the sealing plug 8 increases the tightness between the sealing plug 8 and the through groove 203, so that the sealing plug 8 fully utilizes the pressure difference to realize quick opening (after the upper stroke is finished) and slow closing (after the lower stroke is finished) of the traveling valve 4, and the sealing plug 8 at the lower side and the lower side of the connecting piece 9 can undergo relative displacement, and the push rod 11 moves rightwards to occupy the volume of the right through groove 203, so that the volume in the right through groove 203 is increased, and therefore, relative longitudinal displacement exists between the two sealing plugs 8, so that smooth transverse movement of the push rod 11 is ensured.
Example 2: on the basis of embodiment 1, as shown in fig. 1, 2 and 5, the oil drainage mechanism is further arranged on the fixed seat 3, the oil drainage mechanism is used for discharging oil on the upper side of the fixed seat 3, the oil drainage mechanism comprises two ejector rods 13 which are distributed in a bilateral symmetry mode, the two ejector rods 13 are connected to the fixed seat 3 in a sliding mode, the ejector rods 13 are in extrusion fit with the lower side and the adjacent sealing plugs 8, the fixed seat 3 is connected with two cross rods 14 which are distributed in a bilateral symmetry mode in a sliding mode, the lower ends of the ejector rods 13 and one end, far away from the fixed valve 5, of the cross rods 14 are fixedly connected with triangular blocks 15, the fixed seat 3 is provided with cylindrical cavities which are distributed in a symmetry mode, the triangular blocks 15 are respectively located in adjacent cylindrical cavities of the fixed seat 3, the adjacent triangular blocks 15 are in limit fit, a second spring 16 is fixedly connected between the triangular blocks 15 on the cross rods 14 and the fixed seat 3, and the second spring 16 is located on the outer side of the adjacent cross rods 14.
When the well is required to be washed or oil is drained into the oil pipe and the pump barrel 1, petroleum is usually pumped into the ground, so that the ground environment is polluted and the subsequent cleaning is not facilitated, the petroleum is not brought into the ground when the oil pump drains, a complicated treatment mode is not required, and the specific operation is as follows: when oil in the pump cylinder 1 needs to be drained, the sucker rod drives the plunger 2 to approach the fixed seat 3, after the sealing plug 8 at the lower side contacts with the adjacent ejector rod 13, taking the sealing plug 8 at the right side as an example, the sealing plug 8 at the lower side is limited by the ejector rod 13 and can move upwards relative to the plunger 2, meanwhile, the ejector rod 13 can also move downwards under the extrusion of the sealing plug 8 at the lower side, taking the sealing plug 8 at the lower side as an example, the sealing plug 8 at the lower side drives the connecting piece 9 and the guide frame 901 to move upwards, the right side of the rectangular frame 12 moves from the vertical part of the guide frame 901 to the inclined part at the lower side, the elastic piece 10 is stretched, the guide frame 901 drives the rectangular frame 12 to move leftwards along with the upward movement of the guide frame 901, the rectangular frame 12 drives the push rod 11 to move leftwards, the push rod 11 moves leftwards quickly, and the oil in the hold-down hole 202 cannot enter the first vertical hole 201 through the guide groove 204, therefore, the push rod 11 moves rapidly leftwards to push the inserted link 6 to move leftwards through the oil in the pressure holding hole 202, the first spring 7 resets, the inserted link 6 extrudes the traveling valve 4 to move upwards, the traveling valve 4 is opened, the push rod 13 on the right side is taken as an example, the push rod 13 drives the triangular block 15 on the lower end of the push rod to move downwards, the triangular block 15 of the push rod 13 extrudes the triangular block 15 of the cross rod 14, the triangular block 15 of the cross rod 14 is extruded to drive the cross rod 14 to move leftwards after being extruded, the second spring 16 is compressed, the cross rod 14 moves leftwards to extrude the fixed valve 5 to move upwards, the fixed valve 5 is opened, finally, the left side of the push rod 11 is positioned on the left side of the connecting part of the guide groove 204 and the pressure holding hole 202, the oil volume between the push rod 11 and the inserted link 6 is kept unchanged, and then the inserted link 6 continuously extrudes the traveling valve 4.
After the traveling valve 4 and the fixed valve 5 are simultaneously opened, petroleum on the upper side of the fixed seat 3 sequentially passes through the first vertical hole 201 and the second vertical hole 301 and enters the lower side of the fixed seat 3, finally, petroleum on the upper side of the fixed seat 3 is completely discharged, an operator continuously completes underground operation, when petroleum on the upper side of the fixed seat 3 is not needed to be drained, the sucker rod drives the plunger 2 to move upwards, the sealing plug 8 on the lower side and the adjacent ejector rod 13 are not extruded with each other, taking the sealing plug 8 on the lower side as an example, the elastic piece 10 resets to drive the sealing plug 8 on the upper side to move downwards, the sealing plug 8 on the upper side drives the sealing plug 8 on the lower side to move downwards through the connecting piece 9, the connecting piece 9 drives the push rod 11 to move rightwards through the guide frame 901 and the rectangular frame 12, the limit release of the inserted rod 6 begins to move rightwards, the traveling valve 4 moves downwards, the first spring 7 is compressed, finally, the right side of the rectangular frame 12 is positioned on the upper side of the vertical groove of the guide frame 901, the traveling valve 4 resets to complete, after the sealing plug 13 is not extruded any more, the sealing plug 15 on the lower side is reset by the second spring 16, the reset block 14 drives the reset block 14 to move rightwards, the triangular block 15 is driven by the reset block 14 to move rightwards, the triangular block 15 is not to drive the triangular block 14 to move the triangular block 15 to reset the sealing plug 14 to move rightwards, and the triangular block 15 is not to move the triangular block 15 to move upwards, and the triangular block 15 is driven by the triangular block 15 to move the sealing rod 15 to move rightwards to move the sealing rod 15 to be reset to the sealing bar 15 to be fixed.
The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an oil field is with circulation exhaust formula oil-well pump, including pump barrel (1), the upside in pump barrel (1) is sliding connection has plunger (2), the upside rigid coupling of plunger (2) has the sucker rod, the downside rigid coupling in pump barrel (1) has fixing base (3), be located in pump barrel (1) plunger (2) with the part of fixing base (3) sets up to oil storage cavity (101), plunger (2) are provided with first vertical hole (201), be provided with in first vertical hole (201) and move about valve (4), fixing base (3) are provided with second vertical hole (301), be provided with fixed valve (5) in second vertical hole (301), its characterized in that: the plunger is characterized by further comprising a plunger rod (6), wherein symmetrically distributed pressure holding holes (202) are formed in the plunger (2), the plunger rod (6) is connected to the adjacent pressure holding holes (202) in a sliding mode, the plunger rod (6) is matched with the travelling valve (4) in an extrusion mode, a first spring (7) is fixedly connected between the plunger rod (6) and the plunger (2), and the plunger (2) is provided with a driving mechanism used for driving the plunger rod (6) to extrude the travelling valve (4).
2. The circulating exhaust oil pump for oil fields according to claim 1, wherein: the driving mechanism comprises symmetrical and evenly distributed sealing plugs (8), wherein the plunger (2) is provided with symmetrical distributed through grooves (203), the evenly distributed sealing plugs (8) are slidably connected in the adjacent through grooves (203), connecting pieces (9) are arranged between the sealing plugs (8) and located in the same through grooves (203) and evenly distributed, limiting rings are arranged in the through grooves (203), elastic pieces (10) are fixedly connected between the sealing plugs (8) far away from the fixing base (3) and the adjacent limiting rings of the plunger (2), one side, close to the adjacent pressure holding holes (202), of each connecting piece (9) is provided with a guide frame (901), each pressure holding hole (202) is slidably connected with a push rod (11), each push rod (11) is fixedly connected with a rectangular frame (12) matched with each guide frame (901), and each plunger (2) is provided with symmetrical distributed and is communicated with each adjacent pressure holding hole (202).
3. The circulating exhaust oil pump for oil fields according to claim 2, characterized in that: and a sealing ring is arranged on the outer side of the sealing plug (8) and used for improving the tightness between the sealing plug (8) and the adjacent through groove (203).
4. The circulating exhaust oil pump for oil fields according to claim 2, characterized in that: the guide frame (901) consists of a vertical part in the middle and inclined parts on the upper side and the lower side.
5. The circulating exhaust oil pump for oil fields according to claim 2, characterized in that: the sealing plug (8) far away from the fixing seat (3) is fixedly connected with the adjacent connecting piece (9), and the sealing plug (8) close to the fixing seat (3) is in limiting sliding connection with the adjacent connecting piece (9).
6. The circulating exhaust oil pump for oil fields according to claim 2, characterized in that: the relative displacement between the sealing plug (8) close to the fixing seat (3) and the adjacent connecting piece (9) is smaller than the longitudinal moving distance of the sealing plug (8).
7. The circulating exhaust oil pump for oil fields according to claim 2, characterized in that: the aperture of the diversion trench (204) is smaller than the aperture of the pressure holding hole (202).
8. The circulating exhaust oil pump for oil fields according to claim 2, characterized in that: an arc-shaped surface is arranged on one side of the plunger (2) close to the fixed seat (3) and used for guiding gas in petroleum.
9. The circulating exhaust oil pump for oil fields as claimed in claim 8, wherein: the sealing plug (8) close to the fixing seat (3) is provided with an arc-shaped surface with the same bending degree as the arc-shaped surface of the plunger (2).
10. The circulating exhaust oil pump for oil fields according to claim 2, characterized in that: still including draining mechanism, draining mechanism set up in fixing base (3), draining mechanism is used for the discharge the oil of fixing base (3) upside, draining mechanism is including symmetric distribution's ejector pin (13), symmetric distribution ejector pin (13) all sliding connection in fixing base (3), ejector pin (13) and adjacent and be close to fixing base (3) sealing plug (8) extrusion cooperation, fixing base (3) sliding connection has symmetric distribution's horizontal pole (14), ejector pin (13) with horizontal pole (14) all rigid coupling has triangular block (15), fixing base (3) are provided with symmetric distribution's cylindricality cavity, triangular block (15) are located adjacent respectively in the cylindricality cavity of fixing base (3), adjacent triangular block (15) spacing cooperation, the rigid coupling has second spring (16) between triangular block (15) on horizontal pole (14) and fixing base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410154460.3A CN117685207B (en) | 2024-02-04 | 2024-02-04 | Circulating exhaust type oil pump for oil field |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2045778U (en) * | 1988-12-14 | 1989-10-11 | 中原石油勘探局采油工艺研究所 | Anti-air oil-well pump |
| CN2283126Y (en) * | 1997-03-27 | 1998-06-03 | 黄翔 | Blow-out preventing lock valve |
| CN104251199A (en) * | 2013-06-28 | 2014-12-31 | 中国石油天然气股份有限公司 | Anti-air-locking oil well pump |
| CN105298813A (en) * | 2015-11-18 | 2016-02-03 | 张春生 | Exhaust plunger oil well pump |
| US20170058635A1 (en) * | 2015-08-27 | 2017-03-02 | Downing Innovations, LLC | Method and apparatus for preventing gas lock/gas interference in a reciprocating downhole pump |
| CN208966557U (en) * | 2018-08-29 | 2019-06-11 | 中国石油天然气股份有限公司 | Gas-tight travelling valve |
| CN115370560A (en) * | 2022-10-25 | 2022-11-22 | 山东高原油气装备有限公司 | Oil-well pump with exhaust function for oil field |
| CN116044722A (en) * | 2023-04-03 | 2023-05-02 | 东营高原海泰机械制造有限公司 | Plunger type oil pump based on pressure exhaust principle |
-
2024
- 2024-02-04 CN CN202410154460.3A patent/CN117685207B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045778U (en) * | 1988-12-14 | 1989-10-11 | 中原石油勘探局采油工艺研究所 | Anti-air oil-well pump |
| CN2283126Y (en) * | 1997-03-27 | 1998-06-03 | 黄翔 | Blow-out preventing lock valve |
| CN104251199A (en) * | 2013-06-28 | 2014-12-31 | 中国石油天然气股份有限公司 | Anti-air-locking oil well pump |
| US20170058635A1 (en) * | 2015-08-27 | 2017-03-02 | Downing Innovations, LLC | Method and apparatus for preventing gas lock/gas interference in a reciprocating downhole pump |
| CN105298813A (en) * | 2015-11-18 | 2016-02-03 | 张春生 | Exhaust plunger oil well pump |
| CN208966557U (en) * | 2018-08-29 | 2019-06-11 | 中国石油天然气股份有限公司 | Gas-tight travelling valve |
| CN115370560A (en) * | 2022-10-25 | 2022-11-22 | 山东高原油气装备有限公司 | Oil-well pump with exhaust function for oil field |
| CN116044722A (en) * | 2023-04-03 | 2023-05-02 | 东营高原海泰机械制造有限公司 | Plunger type oil pump based on pressure exhaust principle |
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| CN117685207B (en) | 2024-04-02 |
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