CN105545622A - Large-power long-stroke five-cylinder plunger pump - Google Patents
Large-power long-stroke five-cylinder plunger pump Download PDFInfo
- Publication number
- CN105545622A CN105545622A CN201610106230.5A CN201610106230A CN105545622A CN 105545622 A CN105545622 A CN 105545622A CN 201610106230 A CN201610106230 A CN 201610106230A CN 105545622 A CN105545622 A CN 105545622A
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- Prior art keywords
- end assembly
- crosshead
- assembly
- pump
- plunger
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2201/00—Pump parameters
- F04B2201/02—Piston parameters
- F04B2201/0206—Length of piston stroke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2201/00—Pump parameters
- F04B2201/08—Cylinder or housing parameters
- F04B2201/0807—Number of working cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Provided is a large-power long-stroke five-cylinder plunger pump. The plunger pump is of a five-cylinder structure, the stroke ranges from 266.7 mm to 292.1 mm, and a power end assembly of the plunger pump comprises a power end shell, a crankshaft, a connecting rod, a bearing, a connecting rod pin, a cross head and a small connecting rod; a hydraulic end assembly comprises a pump head body and a plunger piston, one end of the small connecting rod is connected with the cross head, and the other end of the small connecting rod is connected with the plunger piston of the hydraulic end assembly through a clamp hoop; the power end shell is composed of a crankshaft case body and a cross head case body, the cross head case body is fixed with the crankshaft case body through bolts and fixedly connected with the pump head body of the hydraulic end assembly through pull rods and pull-rod nuts, the pull rods connect the power end assembly with the hydraulic end assembly, and the output end of a reduction gearbox assembly is connected with the crankshaft of the power end assembly. According to the large-power long-stroke five-cylinder plunger pump, the contradiction that more fracturing pump trucks are excessively equipped to solve the safety operation and the reliability of continuous running, but the well site conditions are limited is solved, and the vibratility of the whole fracturing pump trucks is greatly improved.
Description
Technical field
The invention belongs to oil drilling and extracting equipment, be related specifically to plunger pump.
Background technique
Along with ultrahigh pressure, ultradeep well, horizontal well, being on the increase of hyposmosis well, the difficulty of oil-gas mining is more and more large, and oil-gas field development could must be solved by massive hydraulic fracturing operation and increase production On Stable Production.Simultaneously along with conventional gas and oil resource is day by day exhausted, improve the extraction value of unconventional petroleum resources, be that the exploitation of the unconventional petroleum resources of representative depends on large-scale pressing crack construction operation more with shale gas, expanded pressing crack construction operating area further, and unconventionaloil pool exploitation---particularly the single pressing crack construction scale of shale gas is quite large.Therefore, along with continually developing of deep-well, ultradeep well and unconventional petroleum resources, high-power, high pressure, huge discharge pressing crack construction operation can be more and more frequent, and the individual well fracturing work time also can be more and more longer, has higher requirement to the large-scale complete pressure break equipment adapted with it.Pressure break pump truck is the nucleus equipment of pressure break equipment, and plunger pump is as the critical component of pressure break pump truck, and its performance and technical merit have decisive influence to the overall operation ability that pressure break pump truck is equipped down to large-scale complete pressure break.Particularly many at hilly and mountainous land in order to adapt to China well site, road driving conditions is poor, the feature that well layout area is little, has higher requirement to the plunger pump being not only applicable to vehicle-mounted configuration but also having a high pressure huge discharge.At present, Chinese large-sized fracturing pump car mainly contains 2500 type pressure break pump trucks and 3000 type pressure break pump trucks, what 2500 type pressure break pump trucks configured is 2800 type plunger pumps, its stroke is 8 inches (203.2mm), maximum connecting rod load is 102 tons, input power is 2800hp, its shortcoming is single-machine capacity or maximum pump discharge, the coupling of maximum pressure is not suitable with ultra-deep layer, the requirement of super sized type fracturing engineering, that is along with the expansion of pressing crack construction cultivation scale, the Frac unit power and the operational discharge capacity that drop into construction operation are also improving, usual dependence improves coefficient of reserve power and namely exceeds the quata to be equipped with the integrity problem that more pressure break pump truck solves safety work and continuous service, but it is more outstanding that pressure break pump truck quantity increases the contradiction limited with well site, China's most of oil gas field condition, what 3000 type pressure break pump trucks configured is 3300 type plunger pumps, its stroke is 11 inches (279.4mm), maximum connecting rod load is 159 tons, input power is 3300hp, its shortcoming is because plunger pump is triplex pump, discharge pulsating nature larger, pressure break pump truck complete machine oscillation is larger, although unit discharge capacity comparatively 2800 type plunger pumps increases, but at same diameter plunger with under jig frequency, its unit discharge capacity is only 82.5% of 2800 type pressure break pump trucks, so the defect that the coupling that still there is unit maximum pump discharge and maximum pressure is not suitable with ultra-deep layer, super sized type fracturing engineering needs.
Summary of the invention
The object of the present invention is to provide a kind of large power long stroke Five-cylinder piston pump, its stroke is 266.7 to 292.1mm, rated input power is 3300hp, solve China's oil gas field because well site condition is limited and exceed the quata to be equipped with the contradiction that more pressure break pump truck solves the reliability of safety work and continuous service, and the car load vibratility of the pressure break pump truck configuring this plunger pump is improved greatly.
For achieving the above object, technological scheme of the present invention is:
A kind of large power long stroke Five-cylinder piston pump, this plunger pump is five cylinder structures, and stroke is 266.7 to 292.1mm.
A kind of large power long stroke Five-cylinder piston pump, this plunger pump comprises power end assembly, fluid end assembly and speed reducer assembly, and wherein power end assembly comprises power end housing, bent axle, connecting rod, bearing, link pin, crosshead and small rod; Fluid end assembly comprises pump head body and plunger; Small rod one end is connected with crosshead, and the other end is connected by the plunger of clip with fluid end assembly; Power end housing is made up of crankcase body and crosshead casing, crosshead casing and crankcase body are bolted, and be connected and fixed by the pump head body of pull bar and pull-rod nut and fluid end assembly, pull bar connects power end assembly and fluid end assembly, speed reducer assembly output terminal is connected with the bent axle of power end assembly, and shell of reduction box body and crankcase body end face are joined with bolts.
Connecting rod is Alloy Steel Casting, and crosshead full cylinder designs, and outer round surface has oil groove, and is connected by link pin with connecting rod.
Speed reducer assembly is herringbone tooth planetary gear construction, velocity ratio 7.4:1 ~ 7.9:1.
The cylinder spacing of plunger pump power end housing is 266.7mm, and opening centre distance between grade centre distance and each copper sheathing of crosshead casing between the bearing support of crankcase body is all 266.7mm.
Crankcase body adopts combined welding structure, is made up of, front end welded end plate 6 bearing supports, rear portion welding circular arc plate, and the upper and lower symmetrical position in each bearing support front end is designed with screw, fastening for pull bar.
Crosshead casing is welding for steel structure part, the cold edge copper sheathing of endoporus steel bushing inner circle, copper sheathing inner circle fine grinding forms, crosshead casing and crankcase body are fixed in each one group of hole by end face by bolt 8 up and down, pull bar is fixed on crankcase body after each one group of tie rod hole runs through crosshead casing up and down, and each cylinder holes spacing is 266.7mm.
Bent axle is monolithic construction, is made up of six road axle journals and five road crank throws, and six roller bearings are arranged on six road axle journal cylindrical and inner hole of bearing seat places, and support bent axle, the rotating center distance of crank throw and bent axle is 133.35 to 146.05mm.
Good effect of the present invention is: the present invention adopts long stroke and the design of five cylinders, makes plunger pump have the advantage of long stroke and five cylinder pumps simultaneously.The advantage of long stroke: i.e. low jig frequency, each Parts cycle frequency is low, thus extends the fatigue life of each component.The advantage of five cylinder pumps: namely compare triplex pump, it is discharged pulsation and obviously reduces, and can reduce the vibration of component, reduces the vibration of whole manifold system during fracturing work, thus extends the life-span of complete machine and frac system related components.Adopt the assembled power end housing structure of crosshead casing and crankcase body being separated, make crosshead casing and crankcase body separately process separately and then assemble, processing and maintenance become simple and convenient separately.Adopt welding steel structure crosshead casing, lightweight, cost is lower.Use little connecting rod to adopt novel connecting rod, link pin and crosshead combined mechanism than simultaneously, length of connecting rod size is diminished, thus plunger pump is shortened in entire length direction size; Adopt the design of external planetary gear reduction box big speed ratio simultaneously, plunger pump is diminished on overall dimensions, adopts little cylinder spacing simultaneously, plunger pump is shortened in overall width direction size, with the layout of suitable vehicle-mounted pressure break pump truck.External speed reducer velocity ratio (reduction speed ratio) scope of design is 7.4:1 ~ 7.9:1, reduces the highest jig frequency, improves the easily damaged parts life-span of pump.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is partial sectional view of the present invention;
Fig. 3 is power end housing sectional view;
Fig. 4 is crankcase body plan view;
Fig. 5 is crosshead casing plan view;
Fig. 6 crankshaft structure schematic diagram.
embodiment:
The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing.
See Fig. 1, the present invention includes power end assembly 1, fluid end assembly 2 and speed reducer assembly 3; Speed reducer assembly 3 output terminal is connected with the bent axle 5 of power end assembly 1, and shell of reduction box body and crankcase body 17 end face one group of bolt 30 are connected and fixed.
See Fig. 2, power end assembly 1 comprises power end housing 4, bent axle 5, connecting rod 6, bearing 7, link pin 9, crosshead 10, small rod 12, small rod 12 one end is connected with crosshead 10 by one group of screw 11, the other end is connected with the plunger 14 of fluid end assembly 2 by clip 13, drives plunger 14 to do straight reciprocating motion.
See Fig. 3 and Fig. 4, power end housing 4 comprises crankcase body 17 and crosshead casing 18, crosshead casing 18 and crankcase body 17 are fixed by one group of bolt 8, and be connected and fixed with the pump head body 15 of fluid end assembly 2 by pull bar 19 and pull-rod nut 16, the tie rod hole 27 that crosshead casing 18 is run through in pull bar 19 one end is connected and fixed with the screw 20 of crankcase body 17, thus connect power end assembly 1 and fluid end assembly 2, crankcase body 17 adopts combined welding structure, be made up of 6 bearing supports 23, front end welded end plate 21, rear portion welding circular arc plate 22, the upper and lower symmetrical position in each bearing support 23 front end is designed with screw 20, fastening for pull bar 19,
See Fig. 5, crosshead casing 18 is welding for steel structure part, the cold edge copper sheathing 25 of endoporus steel bushing 24 inner circle, copper sheathing 25 inner circle fine grinding forms, crosshead casing 18 and crankcase body 17 are fixed for bolt 8 by one end face up and down each one group of hole 26, be fixed on crankcase body 17 after each one group of tie rod hole 27 runs through crosshead casing 18 for pull bar 19 up and down, each cylinder holes spacing is 266.7mm.
See Fig. 6, bent axle 5 is monolithic construction, be made up of six road axle journals 29 and five road crank throws 28, six roller bearings 7 are arranged on six road axle journal 29 cylindricals and bearing support 23 endoporus place, support bent axle 5, crank throw 28 is 133.35 to 146.05mm with the rotating center distance of bent axle 5, so plunger throw of pump is 266.7 to 292.1mm.
Implementation process of the present invention: power end housing 4 supports bent axle 5 by six roller bearings 7, bent axle 5 is by crank throw 28 drivening rod 6, connecting rod 6 drives crosshead 10 by link pin 9, crosshead 10 is along the copper sheathing 25 inner circle slide anteroposterior in crosshead casing 18, and crosshead 10 drives plunger 14 slide anteroposterior in pump head body 15 to carry out liquid by small rod 12 and sucks discharge work.Because crank throw 28 and the rotating center distance of bent axle 5 are 133.35 to 146.05mm, so plunger throw of pump is 266.7 to 292.1mm.Because stroke is long, so when obtaining the liquid of equal discharge capacity, the rotational speed of bent axle 5 can reduce, the cycle frequency of whole pump reduces, and can improve pump reliability.Because bent axle 5 has five crank throws 28, namely bent axle 5 rotates a circle, and has five plungers 14 to participate in work, and discharging liquid pulsation like this, to compare triplex pump little, can reduce the vibration of pump.
Claims (8)
1. a large power long stroke Five-cylinder piston pump, is characterized in that: this plunger pump is five cylinder structures, and stroke is 266.7 to 292.1mm.
2. a kind of large power long stroke Five-cylinder piston pump according to claim 1, this plunger pump comprises power end assembly (1), fluid end assembly (2) and speed reducer assembly (3), it is characterized in that: power end assembly (1) comprises power end housing (4), bent axle (5), connecting rod (6), bearing (7), link pin (9), crosshead (10) and small rod (12); Fluid end assembly (2) comprises pump head body (15) and plunger (14); Small rod (12) one end is connected with crosshead (10), and the other end is connected with the plunger (14) of fluid end assembly (2) by clip (13); Power end housing (4) is made up of crankcase body (17) and crosshead casing (18), crosshead casing (18) and crankcase body (17) are fixed by bolt (8), and be connected and fixed with the pump head body (15) of fluid end assembly (2) by pull bar (19) and pull-rod nut (16), pull bar (19) connects power end assembly (1) and fluid end assembly (2), speed reducer assembly (3) output terminal is connected with the bent axle (5) of power end assembly (1), and shell of reduction box body and crankcase body (17) end face bolt (30) are connected and fixed.
3. a kind of large power long stroke Five-cylinder piston pump according to claim 2, is characterized in that: connecting rod (6) is Alloy Steel Casting, and crosshead (10) full cylinder designs, and outer round surface has oil groove, and is connected by link pin (9) with connecting rod (6).
4. a kind of large power long stroke Five-cylinder piston pump according to claim 2, is characterized in that: speed reducer assembly (2) is herringbone tooth planetary gear construction, velocity ratio 7.4:1 ~ 7.9:1.
5. a kind of large power long stroke Five-cylinder piston pump according to claim 2, it is characterized in that: the cylinder spacing of plunger pump power end housing (4) is 266.7mm, opening centre distance between grade centre distance and crosshead casing (18) each copper sheathing (25) between the bearing support (23) of crankcase body (17) is all 266.7mm.
6. a kind of large power long stroke Five-cylinder piston pump according to claim 2, it is characterized in that: crankcase body (17) adopts combined welding structure, be made up of 6 bearing supports (23), front end welded end plate (21), rear portion welding circular arc plate (22), the upper and lower symmetrical position in each bearing support (23) front end is designed with screw (20), fastening for pull bar (19).
7. a kind of large power long stroke Five-cylinder piston pump according to claim 2, it is characterized in that: crosshead casing (18) is welding for steel structure part, the cold edge copper sheathing (25) of endoporus steel bushing (24) inner circle, copper sheathing (25) inner circle fine grinding forms, bolt (8) passes through each one group of hole (26) up and down to be fixed crosshead casing (18) and crankcase body (17), pull bar (19) is fixed on crankcase body (17) after each one group of tie rod hole (27) runs through crosshead casing (18) up and down, and each cylinder holes spacing is 266.7mm.
8. a kind of large power long stroke Five-cylinder piston pump according to claim 2, it is characterized in that: bent axle (5) is monolithic construction, be made up of six road axle journals (29) and five road crank throws (28), six roller bearings (7) are arranged on six road axle journal (29) cylindricals and bearing support (23) endoporus place, and crank throw (28) is 133.35 to 146.05mm with the rotating center distance of bent axle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610106230.5A CN105545622A (en) | 2016-02-26 | 2016-02-26 | Large-power long-stroke five-cylinder plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610106230.5A CN105545622A (en) | 2016-02-26 | 2016-02-26 | Large-power long-stroke five-cylinder plunger pump |
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| Publication Number | Publication Date |
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| CN105545622A true CN105545622A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610106230.5A Pending CN105545622A (en) | 2016-02-26 | 2016-02-26 | Large-power long-stroke five-cylinder plunger pump |
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| CN (1) | CN105545622A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089617A (en) * | 2016-08-02 | 2016-11-09 | 山东科瑞泵业有限公司 | A kind of drilling mud shaking pump |
| CN109869294A (en) * | 2019-04-19 | 2019-06-11 | 烟台杰瑞石油装备技术有限公司 | A kind of super high power Five-cylinder piston pump |
| CN109882144A (en) * | 2019-04-19 | 2019-06-14 | 烟台杰瑞石油装备技术有限公司 | A kind of two-shipper double pump electricity drive pressure break semitrailer |
| CN110486249A (en) * | 2019-09-20 | 2019-11-22 | 烟台杰瑞石油装备技术有限公司 | A kind of Five-cylinder piston pump |
| CN110485984A (en) * | 2019-09-20 | 2019-11-22 | 烟台杰瑞石油装备技术有限公司 | A kind of turbine fracturing unit that semi-mounted is vehicle-mounted |
| CN111441925A (en) * | 2020-04-03 | 2020-07-24 | 烟台杰瑞石油装备技术有限公司 | Light five-cylinder plunger pump |
| WO2020211083A1 (en) * | 2019-04-19 | 2020-10-22 | 烟台杰瑞石油装备技术有限公司 | Super-power five-cylinder piston pump |
| WO2021081752A1 (en) * | 2019-10-29 | 2021-05-06 | 烟台杰瑞石油装备技术有限公司 | Five-cylinder plunger pump having integrated-type power end structure |
| WO2021081750A1 (en) * | 2019-10-29 | 2021-05-06 | 烟台杰瑞石油装备技术有限公司 | Multi-point supporting five-cylinder plunger pump |
| CN114483505A (en) * | 2021-12-31 | 2022-05-13 | 中石化四机石油机械有限公司 | High-power five-cylinder piston pump |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089617A (en) * | 2016-08-02 | 2016-11-09 | 山东科瑞泵业有限公司 | A kind of drilling mud shaking pump |
| CN109869294A (en) * | 2019-04-19 | 2019-06-11 | 烟台杰瑞石油装备技术有限公司 | A kind of super high power Five-cylinder piston pump |
| CN109882144A (en) * | 2019-04-19 | 2019-06-14 | 烟台杰瑞石油装备技术有限公司 | A kind of two-shipper double pump electricity drive pressure break semitrailer |
| WO2020211083A1 (en) * | 2019-04-19 | 2020-10-22 | 烟台杰瑞石油装备技术有限公司 | Super-power five-cylinder piston pump |
| CN110486249A (en) * | 2019-09-20 | 2019-11-22 | 烟台杰瑞石油装备技术有限公司 | A kind of Five-cylinder piston pump |
| CN110485984A (en) * | 2019-09-20 | 2019-11-22 | 烟台杰瑞石油装备技术有限公司 | A kind of turbine fracturing unit that semi-mounted is vehicle-mounted |
| WO2021081752A1 (en) * | 2019-10-29 | 2021-05-06 | 烟台杰瑞石油装备技术有限公司 | Five-cylinder plunger pump having integrated-type power end structure |
| WO2021081750A1 (en) * | 2019-10-29 | 2021-05-06 | 烟台杰瑞石油装备技术有限公司 | Multi-point supporting five-cylinder plunger pump |
| CN111441925A (en) * | 2020-04-03 | 2020-07-24 | 烟台杰瑞石油装备技术有限公司 | Light five-cylinder plunger pump |
| CN114483505A (en) * | 2021-12-31 | 2022-05-13 | 中石化四机石油机械有限公司 | High-power five-cylinder piston pump |
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