CN219433030U - Lubricating device and fracturing equipment - Google Patents

Abstract

The utility model provides a lubricating device and a turbine fracturing device. The lubrication device includes: a first hydraulic pump, a first hydraulic motor, a second hydraulic pump, and a third hydraulic pump. The first hydraulic pump is configured to drive a first hydraulic motor configured to drive a second hydraulic pump configured to lubricate a first system in the plunger pump, and the second hydraulic motor is configured to drive a third hydraulic pump configured to lubricate a second system in the plunger pump. The turbine fracturing apparatus includes the lubrication device and the plunger pump.

Description

Lubricating device and fracturing equipment

Technical Field

At least one embodiment of the utility model relates to a lubrication device and a fracturing apparatus.

Background

Currently, plunger pumps use hydraulic pumps for lubrication. Plunger pumps are used in fracturing equipment for oil recovery in the wellsite of an oilfield using fracturing techniques.

Disclosure of Invention

Embodiments of the present utility model relate to a lubrication device and a fracturing apparatus including the lubrication device. The lubricating device provided by the embodiment of the utility model can be used for respectively lubricating the first system and the second system of the plunger pump (double lubrication), so that the requirement of continuous high-power operation of fracturing equipment is met.

Embodiments of the present utility model provide a lubrication apparatus. The lubricating device comprises: a first hydraulic pump, a first hydraulic motor, a second hydraulic pump, and a third hydraulic pump. The first hydraulic pump is configured to drive the first hydraulic motor and the second hydraulic motor, the first hydraulic motor is configured to drive the second hydraulic pump, the second hydraulic pump is configured to lubricate the first system in the plunger pump, the second hydraulic motor is configured to drive the third hydraulic pump, and the third hydraulic pump is configured to lubricate the second system in the plunger pump.

According to an embodiment of the utility model, the lubrication device further comprises a hydraulic distributor. The hydraulic distributor is disposed between the first hydraulic pump and both the first hydraulic motor and the second hydraulic motor to distribute the drive lubrication oil from the first hydraulic pump to the first hydraulic motor and the second hydraulic motor.

According to an embodiment of the present disclosure, the lubrication device further comprises an electric motor. The electric motor is configured to drive the first hydraulic pump.

According to an embodiment of the utility model, the lubrication device further comprises a filter. The filter is disposed between the first hydraulic pump and the hydraulic distributor to filter the driving lubrication oil pumped from the first hydraulic pump into the hydraulic distributor.

According to an embodiment of the utility model, the slide device further comprises a first oil tank communicating with the inlet end of the first hydraulic pump and the outlet ends of the first and second hydraulic motors, respectively.

According to an embodiment of the utility model, the lubrication device further comprises a second oil tank in communication with the inlet ends of the second and third hydraulic pumps and the first and second systems, respectively.

According to an embodiment of the utility model, the hydraulic distributor is further configured to communicate with an auxiliary power system of the vehicle to power the auxiliary power system.

According to an embodiment of the utility model, the first system is a high-pressure system and the second system is a low-pressure system.

The embodiment of the utility model provides fracturing equipment, which comprises the lubricating device and a plunger pump. The lubrication device is further provided with a high-pressure oil circuit configured to pump high-pressure lubrication oil into the high-pressure oil circuit, the high-pressure oil circuit configured to lubricate a first part to be lubricated in a first system of the plunger pump with the high-pressure lubrication oil, the third hydraulic pump configured to pump low-pressure lubrication oil into a second system of the plunger pump, and the low-pressure oil circuit configured to lubricate a second part to be lubricated in the second system with the low-pressure lubrication oil.

According to an embodiment of the utility model, the first part to be lubricated comprises at least one of a connecting rod bushing or a cross head bushing in the plunger pump.

According to an embodiment of the utility model, the second part to be lubricated comprises at least one of a crankshaft bearing, a cross head rail, a bearing or a gear in a reduction gearbox in the plunger pump.

According to an embodiment of the utility model, the crosshead slide rail comprises a crosshead upper slide rail and a crosshead lower slide rail.

According to an embodiment of the utility model, the low pressure oil circuit comprises a first sub low pressure oil circuit configured to lubricate a bearing of a reduction gearbox in the plunger pump with the low pressure lubricating oil and a second sub low pressure oil circuit configured to lubricate a gear of the reduction gearbox in the plunger pump with the low pressure lubricating oil.

According to an embodiment of the utility model, the turbine fracturing apparatus further comprises a turbine engine. The lubrication device further includes a first lubrication unit configured to lubricate the turbine engine.

According to an embodiment of the utility model, the turbine fracturing apparatus further comprises an external reduction gearbox. The external reduction gearbox is arranged coaxially with the turbine engine, the lubrication device further comprising a second lubrication unit configured to lubricate the external reduction gearbox.

Embodiments of the present utility model provide a lubrication apparatus. The lubricating device comprises: a first electric motor, a first hydraulic pump, a second electric motor, and a second hydraulic pump. The first electric motor is configured to drive the first hydraulic pump, the first hydraulic pump is configured to lubricate a first system in a plunger pump, the second electric motor is configured to drive the second hydraulic pump, and the second hydraulic pump is configured to lubricate a second system in the plunger pump.

According to an embodiment of the present utility model, the lubrication device further includes a tank that communicates with inlet ends of the first and second hydraulic pumps and the first and second systems to supply the first and second hydraulic pumps with lubrication oil and recover the lubrication oil that has been lubricated through the second system.

According to an embodiment of the utility model, the first system is a high-pressure system and the second system is a low-pressure system.

An embodiment of the present utility model provides a turbine fracturing device, including the above lubrication device and the plunger pump, where the lubrication device is further provided with a high-pressure oil path and a low-pressure oil path, the first hydraulic pump is configured to pump high-pressure lubrication oil into the high-pressure oil path, the high-pressure oil path is configured to lubricate a first part to be lubricated in the first system with the high-pressure lubrication oil, the second hydraulic pump is configured to pump low-pressure lubrication oil into the low-pressure oil path, and the low-pressure oil path is configured to lubricate a second part to be lubricated in the second system with the low-pressure lubrication oil.

Drawings

In order to more clearly illustrate the technical solutions of examples of the present utility model, the following brief description of the drawings will make it apparent that the drawings in the following description relate only to some examples of the utility model and are not limiting thereof.

FIG. 1 is a schematic diagram illustrating a lubrication apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram illustrating a turbine fracturing apparatus according to an embodiment of the present utility model;

FIG. 3 is a lubrication schematic illustrating a plunger pump according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating an air intake system and an exhaust system of a fracturing apparatus according to an embodiment of the present utility model;

FIG. 5 is a schematic view illustrating a lubrication apparatus according to another embodiment of the present utility model;

FIG. 6 is a schematic diagram illustrating the connection of an electric motor and a hydraulic pump according to an embodiment of the present utility model; and

fig. 7 is a schematic diagram illustrating a turbine fracturing apparatus according to another embodiment of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the present utility model. It will be apparent that the described examples are some, but not all, examples of the utility model. All other examples, which are obtained by a person of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the described examples of the present utility model.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Embodiments of the present utility model provide a lubrication apparatus. The lubrication device may lubricate the first and second systems of the plunger pump, respectively. The first system and the second system of the plunger pump are respectively and synchronously lubricated (double lubrication) so as to ensure that the plunger pump operates under continuous power of 5000 horsepower or more, thereby meeting the requirement of continuous high-power operation of the fracturing equipment provided with the plunger pump.

Fig. 1 is a schematic view of a lubrication device according to an embodiment of the present utility model.

As shown in fig. 1, the lubrication device 1 includes: a first hydraulic pump 11, a first hydraulic motor 12, a second hydraulic motor 13, a second hydraulic pump 14 and a third hydraulic pump 15. The first hydraulic pump 11 is configured to drive a first hydraulic motor 12 and a second hydraulic motor 13, the first hydraulic motor 12 is configured to drive a second hydraulic pump 14, the second hydraulic pump 13 is configured to lubricate a first system (not shown) in the plunger pump 16, the second hydraulic motor 13 is configured to drive a third hydraulic pump 15, and the third hydraulic pump 15 is configured to lubricate a second system (not shown) in the plunger pump 16.

According to the embodiment of the present utility model, the first hydraulic pump 11 drives the first hydraulic motor 12 and the second hydraulic motor 13 with the driving lubrication oil, the first hydraulic motor 12 and the second hydraulic motor 13 drive the second hydraulic pump 14 and the third hydraulic pump 15 with the driving lubrication oil, respectively, and the second hydraulic pump 14 and the third hydraulic pump 15 pump the high-pressure lubrication oil and the low-pressure lubrication oil to the first system and the second system of the plunger pump 16, respectively, under the driving of the driving lubrication oil, thereby realizing the respective and synchronous lubrication of the parts to be lubricated in the first system and the parts to be lubricated in the second system.

According to an embodiment of the utility model, the first system in the plunger pump may be a high pressure system and the second system in the plunger pump may be a low pressure system.

For example, the lubrication requirements of the parts to be lubricated in the first system are higher than the lubrication requirements of the parts to be lubricated in the second system. For example, the components to be lubricated in the first system require a higher reduction in friction, wear, cooling, etc. than the components to be lubricated in the second system. For example, the lubrication oil pressure of the high pressure lubrication oil may be 200-350PSI and the lubrication oil pressure of the low pressure lubrication oil may be 60-150PSI.

According to an embodiment of the utility model, the power source of the lubrication device may be a hydraulic motor. For example, the power sources of the lubrication device are a first hydraulic motor 12 and a second hydraulic motor 13.

In some embodiments, as shown in fig. 1, the lubrication device 1 further comprises a hydraulic distributor 17. The hydraulic distributor 17 is provided on the hydraulic line and configured to distribute the drive lubrication oil from the first hydraulic pump 11 to the first hydraulic motor 12 and the second hydraulic motor 13. For example, the hydraulic distributor 17 is provided between the first hydraulic pump 11 and both the first hydraulic motor 12 and the second hydraulic motor 13. For example, "between" herein does not necessarily refer to the relative positional relationship of the above-described components, but is located on a hydraulic line connecting the first hydraulic pump 11 and both the first hydraulic motor 12 and the second hydraulic motor 13.

According to an embodiment of the present utility model, as shown in fig. 1, a hydraulic distributor 17 may be provided on a line that drives lubrication oil from the first hydraulic pump 11 into the first hydraulic motor 12 and the second hydraulic motor 13. For example, the hydraulic distributor 17 may be provided with a first outlet 17a and a second outlet 17b, thereby changing one line of the driving lubrication oil from the first hydraulic pump 11 into two lines to achieve synchronization and lubrication of the first system and the second system, respectively.

According to an embodiment of the utility model, the hydraulic distributor 17 may also be provided with a third outlet 17c or more other outlets, for example, in order to achieve hydraulic actuation of more devices.

In some embodiments, the lubrication device 1 further comprises an electric motor 18. The electric motor 18 is configured to drive the first hydraulic pump 11.

According to an embodiment of the present utility model, the electric motor 18 may drive the first hydraulic pump 11, thereby achieving hydraulic driving. For example, the electric motor 18 may be directly connected to the first hydraulic pump 11, or may be connected by a coupling or the like.

In some embodiments, as shown in fig. 1, the lubrication device further comprises a filter 19. The filter 19 is configured to filter the driving lubrication oil pumped from the first hydraulic pump 11 to the hydraulic distributor 17. For example, a filter 19 is provided between the first hydraulic pump 11 and the hydraulic distributor 17 to filter the driving lubrication oil pumped from the first hydraulic pump 11 into the hydraulic distributor 17.

According to an embodiment of the present utility model, the filter 19 may filter the driving lubrication oil flowing into the hydraulic distributor 17, thereby filtering out impurities in the driving lubrication oil, to reduce wear on the first hydraulic pump 12, the first hydraulic motor 12, the second hydraulic motor, and the like, thereby extending their lives.

In some embodiments, as shown in fig. 1, the lubrication device 1 further comprises a first oil tank 110. The first tank 110 is configured to circulate the drive lubrication oil from the first hydraulic motor 12 and the drive lubrication oil from the second hydraulic motor 13 back to the first hydraulic pump 11. For example, the first oil tank 110 communicates with the inlet end of the first hydraulic pump 11 and the outlet ends of the first hydraulic motor 12 and the second hydraulic motor 13, respectively.

According to the embodiment of the present utility model, the circulation of the driving lubricant can be achieved by providing the first oil tank 110 to improve the hydraulic driving efficiency.

In some embodiments, as shown in fig. 1, the lubrication device further includes a second oil tank 111. The second oil tank 111 is configured to circulate the high-pressure lubricating oil that has lubricated the first system and the low-pressure lubricating oil that has lubricated the second system back to the second hydraulic pump 14 and the third hydraulic pump 15, respectively. For example, the second oil tank 111 communicates with the inlet ends of the second and third hydraulic pumps 14 and 15 and the first and second systems, respectively.

According to the embodiment of the present utility model, the respective circulation of the high-pressure lubrication oil and the low-pressure lubrication oil can be realized by providing the second oil tank 111 to improve the lubrication efficiency.

In some embodiments, as shown in FIG. 1, the hydraulic distributor 17 is also configured to communicate with an Auxiliary Power System (APS) of the vehicle to power the auxiliary power system APS.

According to the embodiment of the present utility model, the hydraulic distributor 17 can supply hydraulic power to the auxiliary system APS of the vehicle in addition to the first hydraulic motor 12 and the second hydraulic motor 13 without providing an additional power source to the auxiliary system APS of the vehicle, thereby simplifying the apparatus. In the present example, the APS of the vehicle is only an example of the device to be driven, and the hydraulic distributor 17 may also supply hydraulic power to other devices to be driven.

In some embodiments, filters may be provided on the lines for the circulation of the high-pressure lubrication oil and in appropriate positions of the lines for the circulation of the low-pressure lubrication oil, thereby filtering the high-pressure lubrication oil and the low-pressure lubrication oil to reduce wear on the components to be lubricated in the second hydraulic pump 14, the third hydraulic pump 15, and the ram pump 16, to improve lubrication efficiency and component life.

In some embodiments, the appropriate locations on the lines for the circulation of high pressure lubrication oil and on the lines for the circulation of low pressure lubrication oil may be provided with relief valves to ensure stable operation of the lubrication device.

In some embodiments, a pressure gauge may be provided in place on the line for the circulation of the high pressure lubrication oil and on the line for the circulation of the low pressure lubrication oil to monitor the pressure of the lubrication oil.

In some embodiments, the lines for the circulation of the high-pressure lubrication oil and the lines for the circulation of the low-pressure lubrication oil may be provided with safety valves in appropriate positions to ensure stable operation of the high-pressure lubrication and the low-pressure lubrication.

In some embodiments, the lines for the circulation of high pressure lubrication oil and the lines for the circulation of low pressure lubrication oil may be provided with coolers in place to ensure that the lubrication oil is able to provide adequate lubrication performance.

Fig. 2 shows a turbine fracturing apparatus according to an embodiment of the utility model.

As shown in fig. 2, the turbine fracturing apparatus includes the lubricating apparatus 1 described above and a plunger pump 16.

Fig. 3 is a schematic lubrication diagram of a plunger pump according to an embodiment of the present utility model. As shown in fig. 3, the lubrication device 1 is further provided with a high-pressure oil passage 112 and a low-pressure oil passage 113.

As shown in fig. 2 and 3, the second hydraulic pump 14 is configured to pump high-pressure lubrication oil into the high-pressure oil passage 112, the high-pressure oil passage 112 is configured to lubricate a first part to be lubricated in the first system of the plunger pump 16 with the high-pressure lubrication oil, the third hydraulic pump 15 is configured to pump low-pressure lubrication oil into the low-pressure oil passage 113, and the low-pressure oil passage 113 is configured to lubricate a second part to be lubricated in the second system of the plunger pump 16 with the low-pressure lubrication oil.

According to an embodiment of the utility model, the first system may be a high-pressure system and the second system may be a low-pressure system.

According to an embodiment of the present utility model, the first hydraulic motor 12 (high-pressure motor), the second hydraulic pump 14 (high-pressure pump) and the high-pressure oil circuit 112 of the present utility model are included in a high-pressure lubrication unit for lubricating a plunger pump, and the second hydraulic motor 13 (low-pressure motor), the third hydraulic pump (low-pressure pump) and the low-pressure oil circuit 113 of the present utility model are included in a low-pressure lubrication unit for lubricating a plunger pump.

According to an embodiment of the present utility model, the first and second systems of the plunger pump of the present utility model are synchronized and lubricated separately to ensure that the plunger pump operates at a continuous power of 5000 horsepower or more, thereby meeting the requirements of continuous high power operation of the fracturing equipment provided with the plunger pump.

According to an embodiment of the utility model, the lubrication requirement of the first part to be lubricated in the first system is higher than the lubrication requirement of the second part to be lubricated in the second system. For example, a first part to be lubricated in a first system requires a higher reduction in friction, wear, cooling, etc. than a second part to be lubricated in a second system.

In some embodiments, the oil supply lines of the high pressure oil line 112 and the low pressure oil line 113 may be provided with filters, relief valves, etc. (not shown), respectively.

In some embodiments, the nominal oil pressure of the high pressure oil circuit 112 may be 200-350PSI. The nominal oil pressure of the low pressure oil line 113 may be 60-150PSI.

According to embodiments of the present utility model, the power of plunger pump 16 may be 5000HP and above.

According to an embodiment of the present utility model, the plunger pump 16 may be a five-cylinder plunger pump.

According to an embodiment of the utility model, the turbine fracturing device may be a continuous high power turbine fracturing device.

According to an embodiment of the present utility model, the output of the plunger pump 16 with high power provides a base condition for a continuous high power turbine fracturing apparatus.

In some embodiments, as shown in fig. 3, the first component to be lubricated includes at least one of a connecting rod bushing 161 and a crosshead bushing 162 in the plunger pump.

In some embodiments, as shown in fig. 3, the second component to be lubricated includes at least one of a crankshaft bearing 163, crosshead shoes 164 and 165, a bearing 166, or a gear 167 of a reduction gearbox in the plunger pump 16.

In some embodiments, as shown in fig. 3, the crosshead slide includes a crosshead upper slide 164 and a crosshead lower slide 165.

According to an embodiment of the present utility model, as shown in fig. 3, the fit clearance between the connecting rod bushing 161 and the crosshead bushing 162 is small, the load bearing capacity is large, the contact area is large, and the lubrication requirement is high. While lubrication requirements are lower for the crankshaft bearings 163, the crosshead shoes 164 and 165, the bearings 166 of the reduction gearbox and the gears 167.

According to the embodiment of the utility model, oil is supplied to lubricate through a double-way lubrication oil way (a high-pressure oil way and a low-pressure oil way), so that different lubrication requirements of each lubrication point of the plunger pump are met: the two oil pumps, namely the high-pressure pump (the second hydraulic pump 14) and the low-pressure pump (the third hydraulic pump 15) are adopted to supply oil, so that the plunger pump ensures the oil supply of each oil way, thereby better distributing lubricating oil, avoiding the problem of uneven distribution of the lubricating oil caused by insufficient lubricating oil quantity of each lubricating point due to excessive lubricating branch, improving the utilization rate of the lubricating oil, reducing abnormality and better assisting the continuous and stable operation of the high-power plunger pump.

In some embodiments, as shown in fig. 3, the low pressure oil circuit 113 includes a first sub low pressure oil circuit 113a and a second sub low pressure oil circuit 113b, the first sub low pressure oil circuit 113a configured to lubricate a bearing 166 of a reduction gearbox in the plunger pump 16 with low pressure lubrication oil, and the second sub low pressure oil circuit 113b configured to lubricate a gear 167 in the reduction gearbox in the plunger pump 16 with low pressure lubrication oil.

According to an embodiment of the present utility model, as shown in fig. 3, at the oil inlet of the low-pressure oil passage 113, the bearing 166 and the gear 167 of the reduction gearbox are provided with independent lubrication oil passages, namely 133a and 133b, respectively. The bearings 166 and the gears 167 of the reduction gear box are independently supplied with oil, so that sufficient lubricating oil can be ensured, an oil film can be effectively established, heat generated by work can be rapidly taken away, and the service life is prolonged.

In some embodiments, as shown in fig. 2, the continuous high power fracturing apparatus further comprises a turbine engine 2. The lubrication device 1 further comprises a first lubrication unit (not shown) configured to lubricate the turbine engine.

In some embodiments, the turbine engine 2 may use 100% natural gas or diesel as fuel.

In some embodiments, the first lubrication unit may be provided with a corresponding cooler to ensure that the oil entering the lubrication unit is able to provide adequate lubrication performance in long problems.

In some embodiments, the first lubrication unit may be provided with a corresponding pressure gauge to monitor the pressure in the lubricating oil in the lubrication unit.

In some embodiments, the first lubrication unit may also be provided with a corresponding safety valve to ensure stable operation of the first lubrication unit.

In some embodiments, as shown in fig. 2, the continuous high power fracturing apparatus further comprises an external reduction gearbox 3. The external reduction gearbox 3 is arranged coaxially with the turbine engine 2.

In some embodiments, a torque limiter 7 may be provided on the external reduction gearbox 3 to ensure that the torque is not too great to damage the turbine engine 2.

In some embodiments, the lubrication device 1 further comprises a second lubrication unit (not shown) configured to lubricate the external reduction gearbox 3.

In some embodiments, the second lubrication unit may be provided with a corresponding cooler to ensure that the oil entering the lubrication unit provides adequate lubrication at ambient temperature

In some embodiments, the second lubrication unit may be provided with a corresponding pressure gauge to monitor the pressure in the lubricating oil in the lubrication unit.

In some embodiments, the second lubrication unit may also be provided with a corresponding safety valve to ensure stable operation of the second lubrication unit.

According to the embodiment of the present utility model, the lubrication device can lubricate and cool the turbine engine 2, the external reduction gear box 3, and the plunger pump 16, ensuring stable operation thereof.

According to an embodiment of the utility model, each pressure gauge may monitor the oil pressure in the whole lubrication device.

According to the embodiment of the present utility model, each of the safety valves can ensure stable operation of the entire lubrication device.

In some embodiments, as shown in fig. 2, the turbine fracturing apparatus further includes an auxiliary power system 6. The auxiliary power system 6 may power the lubrication device 1, i.e. the auxiliary power system 6 may power the lubrication of the plunger pump, the turbine engine and the external reduction gearbox, ensuring that the turbine engine, the external reduction gearbox and the plunger pump all operate under appropriate conditions.

In some embodiments, auxiliary power system 6 may include a diesel engine, a gas turbine, a hydraulic motor, or an electric motor.

For example, the auxiliary power system 6 may be provided with a hydraulic pump 61, which hydraulic pump 61 may act as the first hydraulic pump 11 of the lubrication device 1 to power the lubrication of the plunger pump. The hydraulic pump 61 may also power the first lubrication unit, thereby powering the lubrication of the turbine engine. The hydraulic pump 61 may also power the second lubrication unit and thus the lubrication of the external reduction gearbox 3.

According to the embodiment of the utility model, the lubrication device adopts the first hydraulic pump, the first hydraulic motor, the second hydraulic pump and the third hydraulic pump for driving and lubrication, namely adopts a set of hydraulic system for hydraulic driving and lubrication, thereby being convenient for simultaneous control. In addition, the turbine fracturing equipment is originally provided with a hydraulic oil tank or a lubricating oil tank, can serve as a hydraulic oil source, does not need to be additionally provided with an additional structure, and therefore equipment is simplified.

In some embodiments, the auxiliary power system 6 is provided on a gooseneck (gooseneck) of the chassis 4 to optimize the configuration of the various devices on the chassis 4.

In some embodiments, as shown in fig. 2, the continuous high power fracturing apparatus further comprises a drive shaft 5. The turbine engine 2 is arranged coaxially with an external reduction gearbox 3. The drive shaft 5 is arranged between the external reduction gearbox 3 and the plunger pump 16, the external reduction gearbox 3 being connected to the plunger pump 16 via the drive shaft 5. The included angle between the axis of the external reduction gear box 3 and the transmission shaft 5 is 2-4 degrees, so that stable and efficient transmission of the turbine engine 2 is ensured, and faults are reduced.

In some embodiments, as shown in fig. 2, the continuous high power fracturing apparatus further comprises a chassis 4, the turbine engine 2, the external gearbox 3 and the plunger pump 16 being arranged on the chassis 4, the chassis 4 being towed by a vehicle (not shown).

In some embodiments, as shown in fig. 2, the turbine engine 2, the external gearbox 3, the drive shaft 5 and the plunger pump 16 may all be provided on the chassis 4.

In some embodiments, the chassis 4 is made of T1 high strength structural steel to ensure the stability of the chassis 1, and provide a reliable working platform for the stable operation of the turbine engine 2 and the high-power plunger pump 16.

In some embodiments, the chassis 4 may have more than 3 axles to ensure adequate load carrying capacity.

In some embodiments, as shown in fig. 1, the hydraulic distributor 17 is provided with a first outlet 17a, a second outlet 17b and a third outlet 17c. The hydraulic distributor 17 is configured to distribute the drive lubrication oil from the first hydraulic pump 11 to the first hydraulic motor 12, the second hydraulic motor 13, and the auxiliary power system APS of the vehicle via the first outlet 17a, the second outlet 17b, and the third outlet 17c, respectively.

According to the embodiment of the present utility model, the hydraulic distributor 17 can supply hydraulic power to the auxiliary system APS of the vehicle in addition to the first hydraulic motor 12 and the second hydraulic motor 13 without providing an additional power source to the auxiliary system APS of the vehicle, thereby simplifying the apparatus.

Fig. 4 is a schematic diagram of the air intake and exhaust systems of a continuous high power fracturing apparatus of an embodiment of the present utility model.

In some embodiments, as shown in fig. 2, the turbine fracturing apparatus further includes an air intake system 8.

In some embodiments, as shown in FIG. 4, the air induction system 8 includes an air induction filter 8a and an air induction circuit (not shown). For example, the intake filter 8a is connected to an intake port of the turbine engine 2 through an intake pipe.

In some embodiments, as shown in fig. 2, the air intake system 8 is integrated on the chassis 4 to increase the ease of use of the turbine fracturing device, reduce transportation costs, and eliminate the need for field connection assembly.

In some embodiments, as shown in fig. 2, the turbine fracturing apparatus further includes an exhaust system 9. For example, the exhaust system 9 is connected to an exhaust port of the turbine engine 2.

In some embodiments, as shown in fig. 2, the exhaust system 9 is integrated on the chassis 4 to increase the ease of use of the turbine fracturing device, reduce transportation costs, and eliminate the need for field connection assembly.

In some embodiments, as shown in fig. 4, the exterior of the turbine engine 2 is provided with a chamber on which an intake filter 8a is disposed. The intake filter 8a may be of a V-shaped structure, i.e. the intake filter 8a has a V-shaped cross section. The V-shaped contact area is larger, thereby increasing the intake area, reducing the intake flow rate, prolonging the service life of the intake filter 8a, better matching the required air amount, and promoting the stable output of the turbine engine 2.

In some embodiments, as shown in fig. 2 and 4, the exhaust end of the exhaust system 9 is provided with a rain cap 9a. For example, a rain cap 9a is hinged at the exhaust end of the exhaust system 9. The opening direction of the rain cap 9a is away from the turbine engine 2.

The exhaust end of the exhaust system 9 is open. If it rains, rainwater may accumulate in the exhaust system 9, and more seriously backflow into the turbine engine 2, damaging the turbine engine 2. The addition of the rain cap 9a can effectively avoid this.

In some embodiments, as shown in fig. 4, the rain cap 9a is open in a direction away from the turbine engine 2, thereby preventing exhaust gases from being drawn in by the air intake system 8 of the turbine engine 2.

In some embodiments, as shown in fig. 4, after the rain cap 9a obtains the power provided by the electric winch 9b, the rain cap rotates along the exhaust end of the exhaust system 9 by an angle of 0 ° to 90 °. The rotation angle of the rain cap 9a may be 85 °.

According to an embodiment of the utility model, the rain cap 9a may be completely closed, i.e. in a 0 ° state, in a non-operational state or in a rainy day. Can be opened to 85 degrees in the working state, and ensures that the rain cap 9a can be smoothly opened and closed through the electric winch 9 b.

Fig. 5 is a view illustrating a lubrication device according to another embodiment of the present utility model.

As shown in fig. 5, the lubrication device 20 includes: a first electric motor 21, a first hydraulic pump 22, a second electric motor 23 and a second hydraulic pump 24. The first electric motor 21 is configured to drive a first hydraulic pump 22, the first hydraulic pump 22 is configured to lubricate a first system (not shown) in the plunger pump, the second electric motor 23 is configured to drive a second hydraulic pump 24, and the second hydraulic pump 24 is configured to lubricate a second system (not shown) in the plunger pump.

According to an embodiment of the present utility model, the first electric motor 21 drives the first hydraulic pump 22 to pump high-pressure lubrication oil into the first system of the plunger pump 16, and the second electric motor 23 drives the second hydraulic pump 24 to pump low-pressure lubrication oil into the second system of the plunger pump 16, thereby achieving separate lubrication of the parts to be lubricated in the first system and the parts to be lubricated in the second system.

According to the embodiment of the present utility model, whether the first system and the second system of the plunger pump 16 are simultaneously lubricated can be controlled by controlling whether the first electric motor 21 and the second electric motor 23 simultaneously drive the first hydraulic pump 22 and the second hydraulic pump 24, respectively.

According to an embodiment of the utility model, the first system in the plunger pump may be a high pressure system and the second system in the plunger pump may be a low pressure system.

For example, the lubrication requirements of the parts to be lubricated in the first system are higher than the lubrication requirements of the parts to be lubricated in the second system. For example, the components to be lubricated in the first system require a higher reduction in friction, wear, cooling, etc. than the components to be lubricated in the second system. For example, the lubrication oil pressure of the high pressure lubrication oil may be 200-350PSI and the lubrication oil pressure of the low pressure lubrication oil may be 60-150PSI.

According to an embodiment of the utility model, the power source of the lubrication device is an electric motor. For example, the power sources are a first electric motor 21 and a second electric motor 23.

Fig. 6 shows a schematic connection of an electric motor and a hydraulic pump according to an embodiment of the utility model.

In some embodiments, as shown in fig. 6, the electric motor may be directly connected with the hydraulic pump. For example, the first electric motor 21 may be directly connected with the first hydraulic pump 22, and the second electric motor 23 may be directly connected with the second hydraulic pump 24.

In some embodiments, the electric motor may also be connected to a hydraulic motor (not shown) via a coupling or the like.

In some embodiments, as shown in fig. 5, the lubrication device 20 further includes an oil tank 25. The oil tank 25 communicates with the inlet ends of the first and second hydraulic pumps 22 and 24 and the first and second systems to supply the first and second hydraulic pumps 22 and 24 with lubricating oil and recover the lubricating oil that has been lubricated through the first system and the lubricating oil that has been lubricated through the second system. For example, the oil tank 25 is configured to circulate the lubricating oil that has lubricated the first system and the lubricating oil that has lubricated the second system back to the first hydraulic pump 22 and the second hydraulic pump 24, respectively.

According to the embodiment of the present utility model, the circulation of the high-pressure lubricating oil and the low-pressure lubricating oil can be achieved by providing the oil tank 25 to improve the lubrication efficiency.

In some embodiments, filters may be provided on the lines for the circulation of the high-pressure lubrication oil and in place on the lines for the circulation of the low-pressure lubrication oil to filter the high-pressure lubrication oil and the low-pressure lubrication oil to reduce wear on the components to be lubricated in the first hydraulic pump 22, the second hydraulic pump 24, and the plunger pump 16, thereby improving lubrication efficiency and component life.

In some embodiments, the appropriate locations on the lines for the circulation of high pressure lubrication oil and on the lines for the circulation of low pressure lubrication oil may be provided with relief valves to ensure stable operation of the lubrication device.

In some embodiments, a pressure gauge may be provided in place on the line for the circulation of the high pressure lubrication oil and on the line for the circulation of the low pressure lubrication oil to monitor the pressure of the lubrication oil.

In some embodiments, the lines for the circulation of the high-pressure lubrication oil and the lines for the circulation of the low-pressure lubrication oil may be provided with safety valves in appropriate positions to ensure stable operation of the high-pressure lubrication and the low-pressure lubrication.

In some embodiments, the lines for the circulation of high pressure lubrication oil and the lines for the circulation of low pressure lubrication oil may be provided with coolers in place to ensure that the lubrication oil is able to provide adequate lubrication performance.

Fig. 7 illustrates a turbine fracturing apparatus according to another embodiment of the utility model.

As shown in fig. 7, the turbine fracturing apparatus includes a lubrication device 20 and a plunger pump 16, the lubrication device 20 is further provided with a high-pressure oil path and a low-pressure oil path (not shown), the first hydraulic pump 22 is configured to pump high-pressure lubrication oil into the high-pressure oil path, the high-pressure oil path is configured to lubricate a first part to be lubricated in a first system in the plunger pump with the high-pressure lubrication oil, the second hydraulic pump 24 is configured to pump low-pressure lubrication oil into the low-pressure oil path, and the low-pressure oil path is configured to lubricate a second part to be lubricated in a second system in the plunger pump with the low-pressure lubrication oil. The structure and function of the high-pressure oil passage and the low-pressure oil passage in the present embodiment are similar to those of the high-pressure oil passage 112 and the low-pressure oil passage 113 shown in fig. 3.

According to an embodiment of the utility model, the first system may be a high-pressure system and the second system may be a low-pressure system.

According to an embodiment of the present utility model, the first electric motor 21 (high-pressure motor), the first hydraulic pump 22 (high-pressure pump) and the high-pressure oil circuit of the present utility model are included in a high-pressure lubrication unit for lubricating the plunger pump, and the second electric motor 23 (low-pressure motor), the second hydraulic pump 24 (low-pressure pump) and the low-pressure oil circuit of the present utility model are included in a low-pressure lubrication unit for lubricating the plunger pump.

As shown in fig. 7, the turbine fracturing apparatus of the present embodiment further includes a turbine engine 2, a reduction gearbox 3, a chassis 4, a propeller shaft 5, an auxiliary power system 6, a torque limiter 7, an intake system 8, and an exhaust system 9. The structure and function of the turbine engine 2, the reduction gearbox 3, the chassis 4, the propeller shaft 5, the auxiliary power system 6, the torque limiter 7, the intake system 8, the exhaust system 9 shown in fig. 7 are similar to those of the turbine engine 2, the reduction gearbox 3, the chassis 4, the propeller shaft 5, the auxiliary power system 6, the torque limiter 7, the intake system 8, the exhaust system 9 shown in fig. 2.

According to an embodiment of the utility model, the turbine fracturing device may be a continuous high power turbine fracturing device.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (19)

1. A lubrication device, comprising: a first hydraulic pump, a first hydraulic motor, a second hydraulic pump, and a third hydraulic pump,

wherein the first hydraulic pump is configured to drive the first hydraulic motor and the second hydraulic motor, the first hydraulic motor is configured to drive the second hydraulic pump, the second hydraulic pump is configured to lubricate the first system in the plunger pump, the second hydraulic motor is configured to drive the third hydraulic pump, and the third hydraulic pump is configured to lubricate the second system in the plunger pump.

2. The lubrication device according to claim 1, further comprising a hydraulic distributor provided between the first hydraulic pump and both the first hydraulic motor and the second hydraulic motor to distribute drive lubrication oil from the first hydraulic pump to the first hydraulic motor and the second hydraulic motor.

3. The lubrication device according to claim 1 or 2, further comprising an electric motor configured to drive the first hydraulic pump.

4. The lubrication device of claim 2, further comprising a filter disposed between the first hydraulic pump and the hydraulic distributor to filter the drive lubrication oil pumped from the first hydraulic pump into the hydraulic distributor.

5. The lubrication device of claim 1, further comprising a first oil tank in communication with an inlet end of the first hydraulic pump and an outlet end of the first and second hydraulic motors, respectively.

6. The lubrication device of claim 1, further comprising a second tank in communication with inlet ends of the second and third hydraulic pumps and the first and second systems, respectively.

7. The lubrication device of claim 2, wherein the hydraulic distributor is further configured to communicate with an auxiliary power system of the vehicle to power the auxiliary power system.

8. The lubrication device of claim 1, wherein the first system is a high pressure system and the second system is a low pressure system.

9. A fracturing apparatus comprising a lubrication device according to any of claims 1-8 and a plunger pump, said lubrication device being further provided with a high pressure oil circuit and a low pressure oil circuit, said second hydraulic pump being configured to pump high pressure lubrication oil into said high pressure oil circuit, said high pressure oil circuit being configured to lubricate a first part to be lubricated in a first system in the plunger pump with said high pressure lubrication oil, said third hydraulic pump being configured to pump low pressure lubrication oil into a second system in the plunger pump, said low pressure oil circuit being configured to lubricate a second part to be lubricated in said second system with said low pressure lubrication oil.

10. The fracturing apparatus of claim 9, wherein the first component to be lubricated comprises at least one of a connecting rod bushing or a cross head bushing in the plunger pump.

11. The fracturing apparatus of claim 9 or 10, wherein the second component to be lubricated comprises at least one of a crankshaft bearing, a cross-head rail, a bearing, or a gear in a reduction gearbox in the plunger pump.

12. The fracturing apparatus of claim 11, wherein the cross-head rail comprises a cross-head upper rail and a cross-head lower rail.

13. The fracturing apparatus of claim 10, wherein the low pressure oil circuit comprises a first sub low pressure oil circuit configured to lubricate bearings of a reduction gearbox in the plunger pump with the low pressure lubrication oil and a second sub low pressure oil circuit configured to lubricate gears of a reduction gearbox in the plunger pump with the low pressure lubrication oil.

14. The fracturing apparatus of claim 9, further comprising a turbine engine, wherein the lubrication device further comprises a first lubrication unit configured to lubricate the turbine engine.

15. The fracturing apparatus of claim 14, further comprising an external reduction gearbox, wherein the external reduction gearbox is disposed coaxially with the turbine engine, the lubrication device further comprising a second lubrication unit configured to lubricate the external reduction gearbox.

16. A lubrication device, comprising: a first electric motor, a first hydraulic pump, a second electric motor, and a second hydraulic pump,

wherein the first electric motor is configured to drive the first hydraulic pump, the first hydraulic pump is configured to lubricate a first system in a plunger pump, the second electric motor is configured to drive the second hydraulic pump, and the second hydraulic pump is configured to lubricate a second system in the plunger pump.

17. The lubrication apparatus according to claim 16, further comprising a tank in communication with inlet ends of the first and second hydraulic pumps and the first and second systems to provide lubrication oil to the first and second hydraulic pumps and to recover lubrication oil that has been lubricated through the first system and lubrication oil that has been lubricated through the second system.

18. The lubrication device of claim 16, wherein the first system is a high pressure system and the second system is a low pressure system.

19. A fracturing apparatus comprising the lubrication device of any one of claims 16-18 and a plunger pump, the lubrication device further being provided with a high pressure oil circuit and a low pressure oil circuit, the first hydraulic pump being configured to pump high pressure lubrication oil into the high pressure oil circuit, the high pressure oil circuit being configured to lubricate a first part to be lubricated in a first system in the plunger pump with the high pressure lubrication oil, the second hydraulic pump being configured to pump low pressure lubrication oil into the low pressure oil circuit, the low pressure oil circuit being configured to lubricate a second part to be lubricated in a second system in the plunger pump with the low pressure lubrication oil.