CN116291875A - Turbine fracturing device - Google Patents

Abstract

The invention relates to a turbine fracturing device comprising: a turbine engine; the first reduction gearbox is in transmission connection with the turbine engine; one end of the transmission shaft is in transmission connection with the first reduction gearbox; the plunger pump is integrated with a second reduction gearbox, and the second reduction gearbox is connected with the other end of the transmission shaft; and an exhaust mechanism connected to and in fluid communication with an exhaust end of the turbine engine.

Description

Turbine fracturing device

The present application is a divisional application of patent application with application number 202010169914.6, which is a continuous high-power turbine fracturing device with application number 2020,month 12.

Technical Field

The invention relates to the technical field of turbine fracturing, in particular to a turbine fracturing device capable of continuously outputting high power.

Background

The traditional oil and gas field fracturing equipment mainly comprises diesel oil and gas field fracturing equipment and electric oil and gas field fracturing equipment, and along with the development of scientific technology, the turbine engine used in aviation is also applied to the fracturing equipment, and because the technology on the application of the turbine engine and the fracturing operation of the oil and gas field is not mature at present, the stable output of the turbine engine is difficult to realize, and the turbine engine and a high-power plunger pump are matched for use or are blank so far, the output power of the whole equipment is lower, and the continuous stable and high-power operation requirements of the current oil and gas field well site cannot be met.

Therefore, a turbine fracturing device capable of continuously outputting high power is needed to meet the requirements of the current oil-gas field well sites.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides continuous high-power turbine fracturing equipment, and provides a stable working platform for the equipment through the selection of materials of a chassis T1; the turbine engine and the reduction gearbox are on the same straight line, the transmission shaft is arranged between the reduction gearbox and the plunger pump, and the transmission shaft angle is 2-4 degrees, so that the stable and efficient transmission of the turbine engine is ensured, and the fault occurrence rate is reduced; the lubricating system driven by the auxiliary power system ensures that the turbine engine, the reduction gearbox and the plunger pump work in a proper environment, and the double lubricating system ensures that the plunger pump can realize continuous power operation of more than 5000HP, and can finally meet the continuous high-power operation requirement of fracturing equipment.

The aim of the invention is achieved by the following technical measures: the utility model provides a high-power turbine fracturing equipment lasts, includes turbine engine, reducing gear box, transmission shaft and plunger pump, turbine engine and reducing gear box are established on the same straight line, and the reducing gear box passes through the transmission shaft and is connected with the plunger pump, transmission shaft angle is between 2-4. Furthermore, a turbine fracturing apparatus comprising: a turbine engine; the first reduction gearbox is in transmission connection with the turbine engine; one end of the transmission shaft is in transmission connection with the first reduction gearbox; the plunger pump is integrated with a second reduction gearbox, and the second reduction gearbox is connected with the other end of the transmission shaft; and an exhaust mechanism connected to and in fluid communication with an exhaust end of the turbine engine.

Further, the power of the plunger pump is more than 5000 HP.

Further, the plunger pump is a five-cylinder plunger pump.

Further, the continuous high-power turbine fracturing equipment comprises a chassis, the turbine engine, the reduction gearbox, the transmission shaft and the plunger pump are arranged on the chassis, and the chassis is made of T1 high-strength structural steel.

Further, the number of axles of the chassis is 3 or more.

Further, the continuous high-power turbine fracturing equipment comprises an auxiliary power system and a lubrication system, wherein the auxiliary power system provides power for the lubrication system, the lubrication system comprises a turbine engine lubrication unit, a reduction gearbox lubrication unit and a plunger pump lubrication unit, and the plunger pump lubrication unit comprises a high-pressure lubrication unit and a low-pressure lubrication unit.

Further, the high-pressure lubrication unit comprises a high-pressure motor, a high-pressure pump and a high-pressure oil circuit, the Gao Yama motor drives the high-pressure pump, and the high-pressure pump pumps high-pressure lubricating oil into the high-pressure oil circuit.

Further, the high-pressure oil way is used for lubricating a connecting rod bearing bush and a cross head bearing bush in the plunger pump.

Further, the low-pressure lubrication unit comprises a low-pressure motor, a low-pressure pump and a low-pressure oil circuit, wherein the low-pressure motor drives the low-pressure pump, and the low-pressure pump pumps low-pressure lubricating oil into the low-pressure oil circuit.

Further, the low-pressure oil way is used for lubricating a crankshaft bearing, a cross head sliding rail, a reduction box bearing and a reduction box gear pair in the plunger pump.

Further, the oil inlets of the low-pressure oil paths are respectively provided with independent lubricating oil paths for the reduction box bearing and the reduction box gear pair.

Further, the auxiliary power system is a diesel engine or a gas turbine or an electric motor.

Further, the auxiliary power system is arranged on a gooseneck of the chassis.

Further, a torque limiter is arranged on the reduction gearbox, so that excessive torque is ensured without damaging the turbine engine.

Further, the turbine engine is fuelled with 100% natural gas or diesel.

Further, the continuous high-power turbine fracturing device comprises an air inlet system, wherein the air inlet system comprises an air inlet filter and an air inlet pipeline, and the air inlet filter is connected with an air inlet of the turbine engine through the air inlet pipeline.

Further, the air inlet filter is of a V-shaped structure.

Further, the continuous high power turbine fracturing apparatus includes an exhaust system coupled to an exhaust port of the turbine engine.

Further, the exhaust end of the exhaust system is provided with a rain cap, the rain cap is hinged with the exhaust end of the exhaust system, and an opening of the rain cap is away from the turbine engine.

Further, the rain hat and the exhaust tail end of the exhaust system realize the rotation opening and closing of the rain hat edge hinge point through the electric winch, and the rotation angle is smaller than 90 degrees.

Further, the opening and closing angle of the rain cap is 85 degrees.

Compared with the prior art, the invention has the beneficial effects that: the continuous high-power turbine fracturing equipment is provided, and a stable working platform is provided for the equipment through the selection of materials of a chassis T1; the turbine engine and the reduction gearbox are on the same straight line, the transmission shaft is arranged between the reduction gearbox and the plunger pump, and the transmission shaft angle is 2-4 degrees, so that the stable and efficient transmission of the turbine engine is ensured, and the fault occurrence rate is reduced; the lubricating system driven by the auxiliary power system ensures that the turbine engine, the reduction gearbox and the plunger pump work in a proper environment, and the double lubricating system ensures that the plunger pump can realize continuous power operation of more than 5000HP, and can finally meet the continuous high-power operation requirement of fracturing equipment.

The invention is described in detail below with reference to the drawings and the detailed description.

Drawings

FIG. 1 is a schematic structural diagram of a continuous high power turbine fracturing apparatus.

Fig. 2 is a schematic structural diagram of an exhaust system.

Fig. 3 is a schematic diagram of lubrication within a plunger pump.

The hydraulic engine comprises a chassis 1, an auxiliary power system 2, a firsthydraulic pump 3, anexhaust system 4, anair inlet system 5, aturbine engine 6, areduction box 7, atransmission shaft 8, aplunger pump 9, anair inlet filter 10, arain hat 11, arain hat 12, anelectric winch 13, a connectingrod bearing bush 14, a crosshead bearing bush 15, a crankshaft bearing 16, a cross head upper slidingrail 17, a cross head lower slidingrail 18, a reductionbox gear pair 19, a reduction box bearing 20, a high-pressure oil circuit 21 and a low-pressure oil circuit.

Detailed Description

As shown in fig. 1 to 3, the continuous high-power turbine fracturing equipment comprises aturbine engine 6, areduction gearbox 7, atransmission shaft 8 and aplunger pump 9, wherein theturbine engine 6 and thereduction gearbox 7 are arranged on the same straight line, thereduction gearbox 7 is connected with theplunger pump 9 through thetransmission shaft 8, and the angle of thetransmission shaft 8 is between 2 degrees and 4 degrees. The stable and efficient transmission of theturbine engine 6 is ensured, and the failure occurrence rate is reduced.

The power of theplunger pump 9 is more than 5000 HP. Theplunger pump 9 is a five-cylinder plunger pump. The output of the highpower plunger pump 9 provides a basis for a continuous high power turbine fracturing apparatus.

The continuous high-power turbine fracturing equipment comprises a chassis 1, wherein aturbine engine 6, areduction gearbox 7, atransmission shaft 8 and aplunger pump 9 are arranged on the chassis 1, and the chassis 1 is made of T1 high-strength structural steel. The stability of the chassis 1 is ensured, and a reliable working platform is provided for the stable operation of theturbine engine 6 and the high-power plunger pump 9.

The number of axles of the chassis 1 is 3 or more. A sufficient load-bearing capacity is ensured.

The continuous high-power turbine fracturing equipment comprises an auxiliary power system 2 and a lubrication system, wherein the auxiliary power system 2 provides power for the lubrication system, the lubrication system comprises 3 lubrication units, namely a turbine engine lubrication unit, a reduction gearbox lubrication unit and a plunger pump lubrication unit, the turbine engine lubrication unit is used for lubrication of aturbine engine 6, and the reduction gearbox lubrication unit is used for lubrication of areduction gearbox 7. The plunger pump lubrication unit comprises a high-pressure lubrication unit and a low-pressure lubrication unit. The lubricating system has the function of lubricating and cooling theturbine engine 6, thereduction gearbox 7 and theplunger pump 9, and ensuring the working stability of theturbine engine 6, thereduction gearbox 7 and theplunger pump 9. The parts that lubricating system includes have the cooler, firsthydraulic pump 3, manometer, relief valve etc. and the cooler is lubricating oil cooling, guarantees that the oil temperature that gets into each lubrication unit is normal, can provide sufficient lubricating property. The firsthydraulic pump 3 powers the lubrication units. The pressure gauge is used for monitoring the lubricating oil pressure of the whole lubricating system. The safety valve ensures stable operation of the lubrication system.

The high-pressure lubrication unit comprises a high-pressure motor, a high-pressure pump and a high-pressure oil path 20, the Gao Yama motor drives the high-pressure pump, and the high-pressure pump pumps high-pressure lubricating oil into the high-pressure oil path 20. The high-pressure oil line 20 is used for lubricating the connectingrod bearing bush 13 and the crosshead bearing bush 14 in theplunger pump 9. The low-pressure lubrication unit comprises a low-pressure motor, a low-pressure pump and a low-pressure oil path 21, wherein the low-pressure motor drives the low-pressure pump, and the low-pressure pump pumps low-pressure lubricating oil into the low-pressure oil path 21. The low-pressure oil path 21 is used for lubricating a crankshaft bearing 15, a cross head sliding rail, a reduction box bearing 19 and a reductionbox gear pair 18 in theplunger pump 9. The crosshead slide includes a crossheadupper slide 16 and a crossheadlower slide 17. The two oil pumps are used for supplying oil and lubricating respectively, so that the different lubrication requirements of each lubrication point in theplunger pump 9 are met, the oil supply amount of each oil way can be better ensured through oil supply of the two oil pumps (the high-pressure pump and the low-pressure pump), the lubricating oil is better distributed, the problem that the lubricating oil is unevenly distributed due to excessive lubrication branches and the lubrication oil amount of each lubrication point is insufficient is avoided, the utilization rate of the lubricating oil is improved, the abnormality is reduced, and the continuous stable operation of the high-power plunger pump 9 is better assisted. The connectingrod bearing bush 13 and the crosshead bearing bush 14 have small fit clearance, large bearing load, large contact area and high lubrication requirement. And a crankshaft bearing 15, a cross head slide rail the reduction gearbox bearing 19 and the reductiongearbox gear pair 18 have a lower lubrication requirement than those required.

And oil inlets of the low-pressure oil paths 21 are respectively provided with independent lubricating oil paths for the reduction gearbox bearing 19 and the reductiongearbox gear pair 18. The speed reduction box bearing 19 and the speed reductionbox gear pair 18 have high rotating speeds, and are respectively and independently supplied with oil, so that sufficient lubricating oil can be ensured, an oil film can be effectively established, heat generated by friction is rapidly taken away, and the service life is prolonged.

The high-pressure oil line 20 and the low-pressure oil line 21 are each provided with a filter, an overflow valve, and the like. The highpressure oil circuit 20 is rated for 200-350PSI of lubrication oil pressure. The rated lubrication oil pressure of the low-pressure oil passage 21 is 60-150PSI.

The auxiliary power system 2 is a diesel engine or a gas turbine or an electric motor.

The auxiliary power system 2 is arranged on a gooseneck of the chassis 1, and the arrangement form of each part of equipment on the chassis 1 is optimized.

Thereduction gearbox 7 is provided with a torque limiter, so that excessive torque is ensured without damaging theturbine engine 6.

Theturbine engine 6 is fuelled with 100% natural gas or diesel.

The continuous high-power turbine fracturing device comprises anair inlet system 5, wherein theair inlet system 5 comprises anair inlet filter 10 and an air inlet pipeline, and theair inlet filter 10 is connected with an air inlet of aturbine engine 6 through the air inlet pipeline. Theair inlet system 5 is integrated on the same chassis 1, so that the convenience in use of continuous high-power turbine fracturing equipment is improved, the transportation cost is reduced, and the on-site connection and assembly are not needed.

Theturbine engine 6 is externally provided with a cabin body, theair inlet filter 10 is arranged on the cabin body, theair inlet filter 10 is of a V-shaped structure, the cross section of the V-shaped structure, namely theair inlet filter 10, is of a V-shaped structure, and the air inlet filter is larger in contact area, increases the air inlet area, reduces the air inlet flow velocity, prolongs the service life of theair inlet filter 10, better matches the air amount required by theturbine engine 6 and assists the stable output of theturbine engine 6.

The continuous high power turbine fracturing apparatus comprises anexhaust system 4, theexhaust system 4 being connected to the exhaust of aturbine engine 6. Theexhaust system 4 is integrated on the same chassis 1, so that the convenience in use of continuous high-power turbine fracturing equipment is improved, the transportation cost is reduced, and the on-site connection and assembly are not required.

The exhaust end of theexhaust system 4 is provided with arain cap 11, therain cap 11 is hinged with the exhaust end of theexhaust system 4, and the opening of therain cap 11 is away from theturbine engine 6. The exhaust end of theexhaust system 4 is of an open type and if it rains, rain water may be deposited in theexhaust system 4 and, more seriously, may back flow into theturbine engine 6, damaging theturbine engine 6. The addition of therain cap 11 can well avoid this. Moreover, the opening of therain cap 11 is facing away from theturbine engine 6, i.e. exhaust gases from theintake system 5 of theturbine engine 6 are avoided.

Therain hat 11 and the exhaust tail end of theexhaust system 4 realize the rotation opening and closing of therain hat 11 along a hinge point through anelectric winch 12, wherein the rotation angle is smaller than 90 degrees. The opening and closing angle of therain cap 11 is 85 degrees. Therain cap 11 can be completely closed, namely, in a 0 degree state, in an inactive state or in a rainy day; therain hat 11 can be opened in the working state, preferably to 85 degrees, so that theelectric winch 12 can be opened and closed smoothly.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (18)

1. A turbine fracturing apparatus comprising:

a turbine engine;

the first reduction gearbox is in transmission connection with the turbine engine;

one end of the transmission shaft is in transmission connection with the first reduction gearbox;

the plunger pump is integrated with a second reduction gearbox, and the second reduction gearbox is connected with the other end of the transmission shaft; and

an exhaust mechanism connected to and in fluid communication with an exhaust end of the turbine engine.

2. The turbine fracturing apparatus of claim 1, wherein the plunger pump has a power of 5000HP or more.

3. The turbine fracturing apparatus of claim 1,

the turbine engine, the first reduction gearbox, the transmission shaft, the plunger pump and the exhaust mechanism are arranged on the same chassis.

4. A turbine fracturing plant according to any one of claims 1 to 3, characterized in that,

the turbine fracturing apparatus includes a lubrication system and an auxiliary power system that powers the lubrication system,

the lubrication system comprises a plurality of lubrication units, and the lubrication unit for the first reduction gearbox and the lubrication unit for the second reduction gearbox are different lubrication units.

5. The turbine fracturing apparatus of claim 4,

the lubrication system comprises a turbine engine lubrication unit, a reduction gearbox lubrication unit and a plunger pump lubrication unit, wherein the turbine engine lubrication unit lubricates the turbine engine, the reduction gearbox lubrication unit lubricates the first reduction gearbox, and the plunger pump lubrication unit lubricates the plunger pump comprising the second reduction gearbox.

6. The turbine fracturing apparatus of claim 5, wherein the plunger pump lubrication unit comprises a high pressure lubrication unit and a low pressure lubrication unit configured for no-lubrication requirements.

7. The turbine fracturing apparatus of claim 6, wherein said high pressure lubrication unit comprises a high pressure motor, a high pressure pump and a high pressure oil circuit, said Gao Yama motor driving the high pressure pump, said high pressure pump pumping high pressure lubrication oil into the high pressure oil circuit.

8. The turbine fracturing apparatus of claim 7 wherein said high pressure oil circuit is used to lubricate a connecting rod bushing and a cross-head bushing within said ram pump.

9. The turbine fracturing apparatus of claim 6, wherein the low pressure lubrication unit comprises a low pressure motor, a low pressure pump, and a low pressure oil circuit, the low pressure motor driving the low pressure pump, the low pressure pump pumping low pressure lubrication oil for the low pressure oil circuit.

10. The turbine fracturing apparatus of claim 9, wherein said low pressure oil circuit is used to lubricate a crankshaft bearing within a plunger pump, a cross-head rail, and a reduction box bearing and reduction box gear pair of said second reduction box.

11. The turbine fracturing apparatus of claim 10 wherein separate lubrication circuits are provided for said gearbox bearing and said gearbox gear pair, respectively, at an oil inlet of said low pressure circuit.

12. The turbine fracturing apparatus of claim 3,

the exhaust system is connected to an exhaust port of the turbine engine and the exhaust system is arranged in line with the turbine engine.

13. The turbine fracturing apparatus of claim 12, wherein,

the exhaust end of the exhaust system is provided with a rain cap in a hinged manner, and the direction of an opening of the rain cap is away from the turbine engine.

14. The turbine fracturing apparatus of claim 13, wherein: the rain hat and the exhaust tail end of the exhaust system are rotated and opened along the hinge point of the rain hat through an electric winch, wherein the rotation angle of the rotation and the opening is between 0 and 90 degrees.

15. The turbine fracturing apparatus of claim 14, wherein said rotational opening and closing of said rain cap is at a rotational angle of 85 °.

16. The turbine fracturing apparatus of claim 3, further comprising an air intake system disposed on the same chassis.

17. The turbine fracturing apparatus of claim 16, wherein the air intake system comprises an air intake filter and an air intake conduit, the air intake filter being connected to an air intake of the turbine engine by the air intake conduit.

18. The turbine fracturing apparatus of claim 17, wherein a nacelle is disposed outside of the turbine engine, the intake filter is disposed on the nacelle, and the intake filter has a "V" shaped cross section.

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