CN213928655U - Continuous operation plunger pump - Google Patents
Continuous operation plunger pump Download PDFInfo
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- CN213928655U CN213928655U CN202021458465.9U CN202021458465U CN213928655U CN 213928655 U CN213928655 U CN 213928655U CN 202021458465 U CN202021458465 U CN 202021458465U CN 213928655 U CN213928655 U CN 213928655U
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- plunger pump
- continuous operation
- crankshaft
- operation plunger
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Abstract
The utility model relates to an oil drilling field, especially a continuous operation plunger pump, including casing and the hydraulic end of setting in casing one side, it is unique lies in: one side of the shell is provided with a hydraulic end, the other side of the shell is provided with a power end, a crankshaft is arranged in the power end, a speed reduction device is connected with the input end of the crankshaft, and a connecting rod journal of the crankshaft is connected with a plunger of the hydraulic end through a transmission mechanism. The utility model has the advantages that: it can be used for 24 hours per day and 7 days per week.
Description
Technical Field
The utility model relates to an oil drilling field, especially a continuous operation plunger pump.
Background
Oil and gas field well cementation, fracturing and coiled tubing drilling and plugging operations generally use 600-1200 input horsepower plunger pumps, and such plunger pumps are best able to perform continuous operations. However, the conventional 600-1200 horsepower plunger pump cannot meet the operation requirements, and particularly cannot perform continuous operation. If a back-to-back arrangement of dual pumps is used to operate alternately, the displacement or pressure cannot meet the operating requirements, although the continuous time requirements can be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a continuous operation plunger pump, it is not only that the pumping pressure is high, and the pumping discharge capacity is big, and the size is little, but especially continuous operation.
The utility model provides a pair of continuity of operation plunger pump compares with current 600~1200 input horsepower's plunger pump, and this continuity of operation plunger pump can carry out continuity of operation. The existing plunger pumps with 600-1200 input horsepower all work intermittently, namely work for 6 hours every day and work for 5 days every week. The continuous operation plunger pump can operate 24 hours every day and 7 days every week.
The utility model provides a pair of continuity of operation plunger pump compares with current 600~1200 input horsepower's plunger pump, and this continuity of operation plunger pump size is little, can adopt the double pump to arrange continuity of operation back to back completely. The existing plunger pump adopts the back-to-back arrangement of double pumps for alternate operation, and the plunger pump can complete the operation amount of the two existing pumps.
Realize the utility model discloses the technical scheme of purpose is: the utility model provides a continuous operation plunger pump, includes the casing and sets up the fluid end in casing one side, its characterized in that: one side of the shell is provided with a hydraulic end, the other side of the shell is provided with a power end, a crankshaft is arranged in the power end, a speed reduction device is connected with the input end of the crankshaft, and a connecting rod journal of the crankshaft is connected with a plunger of the hydraulic end through a transmission mechanism.
And the corner of the structure around the shell is a fillet, and the radius of the fillet is 12-25 mm.
And the hydraulic end is internally provided with a pump head body which is internally provided with a series of inner cavities connected through holes, and the hole wall of each through hole is of a straight inclined plane structure.
The speed reducer is a planetary speed reducer, the planetary speed reducer consists of an input flange, an input pinion shaft connected with the input flange through a spline, an input large gear, a sun gear connected with the input large gear through a spline and a planetary speed reducer, and the planetary speed reducer is connected with the input end of the crankshaft.
And two first lubricating oil paths are arranged in the power end, one ends of the two first lubricating oil paths are respectively arranged at the same side of the power end, and the other ends of the two first lubricating oil paths are respectively arranged at the opposite sides of the power end and are communicated through a pipeline.
And the planetary reducer is provided with a second lubricating oil path, the second lubricating oil path is composed of an oil distributing pipe and an oil inlet pipe, the oil inlet pipe is communicated with the oil distributing pipe, and the oil distributing pipe conveys the lubricating oil to each lubricating point on the planetary reducer.
And the length L of the continuous operation plunger pump in the horizontal direction vertical to the crankshaft is not more than 1.3 meters.
And the turning radius R of one end of the speed reducing device connected with the crankshaft is not more than 0.35 meter.
And the transmission mechanism consists of a crosshead assembly and a connecting rod, and the crosshead assembly is matched with a connecting rod journal of the crankshaft and is connected with a plunger at a hydraulic end through the connecting rod.
And the crankshaft has 3 or 5 connecting rod journals.
The utility model has the advantages that: 1. the planetary reducer is used as a speed reducing device, and a gear pair in the speed reducing device can bear larger input torque and input speed, so that the pumping pressure of the plunger pump is improved, particularly the service life of the gear is long, and continuous operation can be performed; 2. the existing plunger pumps with 600-1200 input horsepower all work intermittently, namely work for 6 hours every day and work for 5 days every week. The continuous operation plunger pump can operate 24 hours every day and 7 days every week, and the operation amount of the two conventional pumps can be finished by one plunger pump; 3. the pump shell with the optimized structure has high integral strength and long service life; 4. the length L in the horizontal direction is not more than 1.3 meters, the turning radius R of one end, connected with the crankshaft, of the speed reducing device is not more than 0.35 meter, the size of the speed reducing device is effectively reduced, and the size of the speed reducing device meets the requirements of vehicle-mounted equipment when the double pumps are symmetrically arranged.
Drawings
FIG. 1 is a schematic view of a continuous operation plunger pump;
FIG. 2 is a power end housing of the continuous operation plunger pump;
FIG. 3 is a fluid end head body of a continuous operation plunger pump;
FIG. 4 is a left side view of the continuous operation plunger pump;
FIG. 5 is a schematic view of the radius of gyration of the continuous operation plunger pump speed reducer;
FIG. 6 is a schematic structural view of a transmission part of the continuous operation plunger pump;
FIG. 7 is a schematic diagram of a power end lubrication oil intake line of a continuous operation plunger pump;
FIG. 8 is a schematic diagram of a reducer lubrication oil inlet line of a continuous operation plunger pump.
Detailed Description
Referring to fig. 1 to 8, the present invention will be further described with reference to the following embodiments.
The utility model relates to an oil drilling field, especially a continuous operation plunger pump, including casing 11 and the hydraulic end 2 of setting in casing one side, its characterized in that: one side of the shell 11 is provided with a hydraulic end 2, the other side of the shell is provided with a power end 1, a crankshaft 4 is arranged in the power end 1, a speed reduction device 2 is connected with the input end of the crankshaft 4, and a connecting rod journal of the crankshaft 4 is connected with a plunger of the hydraulic end 2 through a transmission mechanism.
When an external engine drives an input flange 6 of a planetary reduction gearbox to rotate, an input pinion shaft 7 rotates to drive an input large gear 8 to rotate, a sun gear 9 in splined connection with the input large gear 8 drives a planetary reducer 10 to rotate, so that a crankshaft 4 of a power end 2 is driven to rotate, a crosshead assembly 5 is driven to do linear reciprocating motion, and a plunger of a hydraulic end 2 connected with the crosshead assembly 5 does linear reciprocating motion at the same time, so that pumping operation of a plunger pump is completed.
And the corner of the structure around the shell 11 is a fillet, and the radius of the fillet is 12-25 mm.
Compare 11 fillets of current casing, under the zero component motion condition of noninterference, increase fillet size reduces stress concentration, effectively promotes casing life.
And the interior of the hydraulic end 2 is provided with a pump head body 13, the interior of the pump head body 13 is provided with a series of inner cavities connected through holes, and the hole wall of each through hole is of a straight inclined plane structure.
The existing polishing fillet is improved into a small plane by adopting plane processing, the contact of pressure is changed into surface contact from line contact, the contact area is increased, and the contact stress is reduced.
The further technical scheme may be that the reduction gear 2 is a planetary reducer, the planetary reducer is composed of an input flange 6, an input pinion shaft 7 in spline connection with the input flange 6, an input gearwheel 8, a sun gear 9 in spline connection with the input gearwheel 8, and a planetary reducer 10, and the planetary reducer 10 is connected with the input end of the crankshaft 4.
The input pinion shaft 7, the input gearwheel 8, the sun gear connected with the input gearwheel in a spline manner and the planetary reducer 10 of the planetary reducer are made of special alloy steel, and the gear teeth are made by a special manufacturing technology, so that the planetary reducer has longer service life and can transmit larger torque.
The planetary reducer 10 is used as a speed reducing device, the planetary reducer can be suitable for working conditions of 24 hours/day and 7 days/week, the total continuous working time is not less than 8000 hours, the continuous working of the plunger pump is realized, the planetary reducer 10 can bear the maximum input torque of not less than 13000N/m and the input rotating speed of not less than 2100 rpm, and the pumping pressure of the plunger pump is greatly improved.
A further technical scheme may be that two first lubricating oil paths 14 are arranged in the power end 1, one ends of the two first lubricating oil paths 14 are respectively arranged on the same side of the power end 1, and the other ends are respectively arranged on the opposite sides of the power end 1 and are communicated with each other through a pipeline 15.
Adopt two independent lubricated oil circuit to lubricate power end 1, adopt two oil inlets, and at the offside of oil inlet, have pipeline 15 in addition to feed through two way oil pipe, increased the oil input, reduced lubricating oil flow distance, the lubricated oil mass of power end effectively increases, promotes that power end part is lubricated, extension improvement life.
And the planetary reducer is provided with a second lubricating oil path, the second lubricating oil path is composed of an oil distributing pipe and an oil inlet pipe, the oil inlet pipe is communicated with the oil distributing pipe, and the oil distributing pipe conveys the lubricating oil to each lubricating point on the planetary reducer.
And a second lubricating oil path 16 in the planetary reducer is externally provided with an oil supply system for feeding oil, and lubricating oil is distributed to each oil feeding point through an oil distributing pipe 17 of the planetary reducer. The oil inlet oil path of the planetary reducer is different from the oil inlet oil path of the power end 1, and the independent oil supply pipelines ensure that the respective lubricating oil quantity fully meets the lubricating requirement.
The further technical proposal can be that the length L of the continuous operation plunger pump in the horizontal direction vertical to the crankshaft 4 is not more than 1.3 meters.
The length L of the plunger pump in the horizontal direction is limited within 1.3 meters, so that the size of the double-pump in symmetrical arrangement meets the requirement of vehicle-mounted equipment.
And the revolving radius R of one end of the speed reducing device 2 connected with the crankshaft 4 is not more than 0.35 meter.
The radius of gyration R of one end of the speed reducer 2 connected with the crankshaft 4 is limited within 0.35 meter, and the overall size of the plunger pump is effectively reduced.
The further technical scheme is that the transmission mechanism also comprises a crosshead assembly 5 and a connecting rod, and the crosshead assembly 5 is matched with a connecting rod journal of the crankshaft 2 and is connected with a plunger of the hydraulic end 2 through the connecting rod.
External driving force is input into the crankshaft 4 after being decelerated by the speed reducer 2 and drives the crankshaft 4 to rotate, and power generated by rotation of the crankshaft 4 is transmitted to the plunger of the hydraulic end 2 through the transmission device and is driven to reciprocate, so that pumping operation is completed.
The crankshaft 4 furthermore has 3 or 5 connecting rod journals.
The connecting rod shaft journals on the crankshaft 4 are designed to be 3 or 5, and the hydraulic ends are correspondingly of 3-cylinder or 5-cylinder structures, so that the overall size of the plunger pump is effectively controlled.
Claims (10)
1. The utility model provides a continuous operation plunger pump, includes the casing and sets up the fluid end in casing one side, its characterized in that: one side of the shell is provided with a hydraulic end, the other side of the shell is provided with a power end, a crankshaft is arranged in the power end, a speed reduction device is connected with the input end of the crankshaft, and a connecting rod journal of the crankshaft is connected with a plunger of the hydraulic end through a transmission mechanism.
2. A continuous operation plunger pump as claimed in claim 1, wherein: the corner of the structure around the shell is a fillet, and the radius of the fillet is 12-25 mm.
3. A continuous operation plunger pump as claimed in claim 1, wherein: the hydraulic end is internally provided with a pump head body which is internally provided with a series of inner cavities connected through holes, and the hole wall of each through hole is of a straight inclined plane structure.
4. A continuous operation plunger pump as claimed in claim 1, wherein: the speed reducer is a planetary speed reducer, the planetary speed reducer consists of an input flange, an input pinion shaft connected with the input flange through a spline, an input large gear, a sun gear connected with the input large gear through a spline and a planetary speed reducer, and the planetary speed reducer is connected with the input end of the crankshaft.
5. A continuous operation plunger pump as claimed in claim 1, wherein: two first lubricating oil paths are arranged in the power end, one ends of the two first lubricating oil paths are respectively arranged on the same side of the power end, and the other ends of the two first lubricating oil paths are respectively arranged on the opposite sides of the power end and are communicated through a pipeline.
6. A continuous operation plunger pump according to claim 4, characterized in that: and a second lubricating oil path is arranged on the planetary speed reducer, the second lubricating oil path is composed of an oil distributing pipe and an oil inlet pipe, the oil inlet pipe is communicated with the oil distributing pipe, and the oil distributing pipe conveys the lubricating oil to each lubricating point on the planetary speed reducer.
7. A continuous operation plunger pump as claimed in claim 1, wherein: the length L of the continuous operation plunger pump in the horizontal direction vertical to the crankshaft is not more than 1.3 meters.
8. A continuous operation plunger pump as claimed in claim 1, wherein: and the turning radius R of one end of the speed reducing device connected with the crankshaft is not more than 0.35 m.
9. A continuous operation plunger pump as claimed in claim 1, wherein: the transmission mechanism consists of a crosshead assembly and a connecting rod, wherein the crosshead assembly is matched with a connecting rod journal of the crankshaft and is connected with a plunger piston at a hydraulic end through the connecting rod.
10. A continuous operation plunger pump as claimed in claim 1, wherein: the crankshaft has 3 or 5 connecting rod journals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021458465.9U CN213928655U (en) | 2020-07-22 | 2020-07-22 | Continuous operation plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021458465.9U CN213928655U (en) | 2020-07-22 | 2020-07-22 | Continuous operation plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213928655U true CN213928655U (en) | 2021-08-10 |
Family
ID=77142085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021458465.9U Active CN213928655U (en) | 2020-07-22 | 2020-07-22 | Continuous operation plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213928655U (en) |
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2020
- 2020-07-22 CN CN202021458465.9U patent/CN213928655U/en active Active
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