Range-extended rotary drilling rig and energy recycling control system and method thereof

Abstract

The invention discloses an extended-range rotary drilling rig and an energy recycling and reusing control system and method thereof, and belongs to the technical field of rotary drilling rigs, the extended-range rotary drilling rig comprises an energy recycling assembly and an energy reusing assembly, the energy recycling assembly is used for recycling main winch descending potential energy and rotation braking kinetic energy of the extended-range rotary drilling rig; and the energy recycling assembly is used for charging a power battery of the extended-range rotary drilling rig through the generator, so that energy recycling is realized. According to the energy recycling and reusing control system of the extended-range rotary drilling rig, energy recycling and reusing are achieved through the energy recycling assembly and the energy reusing assembly, so that the engine works in a high-efficiency area for most of the time, and therefore the whole machine is high in working efficiency, sufficient in fuel oil, low in cost, small in environmental pollution degree and capable of reducing energy loss.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary drilling rigs, and in particular to an extended-range rotary drilling rig and an energy recovery and reuse control system and method thereof. Background Art

[0002] The rotary drilling rig is a kind of engineering machinery suitable for drilling holes in building foundation engineering. It is widely used in municipal construction, highway bridges, high-rise buildings and other foundation construction projects. With different drilling tools, it is suitable for dry (short spiral) or wet (rotary bucket) and rock formation (core drill) drilling operations. It is mainly suitable for the construction of sandy soil, clay soil, silty soil and other soil layers. It is widely used in various foundation construction such as cast-in-place piles, continuous walls, foundation reinforcement, etc. The rated power of the rotary drilling rig is generally 125~450kW, the power output torque is 120~400kN·m, the maximum hole diameter can reach 1.5~4m, and the maximum hole depth is 60~90m, which can meet the requirements of various large-scale foundation construction.

[0003] The traditional technical route of rotary drilling rigs mainly uses the engine system to drive the hydraulic oil circuit system to realize various oil circuit actions of the rotary drilling rig, including the travel of the rotary drilling rig and the lifting and rotation of the power head. This technical route has a single power, and most of the engine works in the low efficiency area, resulting in low working efficiency of the whole machine, poor fuel economy, high cost and environmental pollution. At the same time, since energy cannot be recycled during the operation, it leads to large energy loss. Summary of the invention

[0004] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the present invention provides an extended-range rotary drilling rig and its energy recovery and reuse control system and method. The engine works in the high-efficiency area most of the time, so that the whole machine has high working efficiency, sufficient fuel, low cost, low environmental pollution, and can realize energy recovery and utilization, reducing energy loss.

[0005] The technical solution of the present invention is as follows:

[0006] In a first aspect, the present invention provides an energy recovery and reuse control system for an extended-range rotary drilling rig, comprising:

[0007] An energy recovery component, the energy recovery component is used to recover the descending potential energy and the slewing braking kinetic energy of the main winch of the extended-range rotary drilling rig;

[0008] An energy recycling component is used to charge the power battery of the extended-range rotary drilling rig through a generator to achieve energy recycling.

[0009] Furthermore, in the above-mentioned extended-range rotary drilling rig energy recovery and reuse control system, the energy recovery component includes:

[0010] a first hydraulic pump, wherein an input end of the first hydraulic pump is fixedly connected to an output end of a main pump motor, and an output end of the first hydraulic pump is fixedly connected to an input end of a second hydraulic pump;

[0011] a first solenoid valve, wherein a first interface of the first solenoid valve is connected to the first hydraulic pump via a first output end of a first balancing valve and a first output end and a second output end of a multi-way valve assembly in sequence;

[0012] a second solenoid valve, wherein a first interface of the second solenoid valve is connected to a second output end of the first balancing valve;

[0013] A rotary motor, wherein a first interface of the rotary motor is connected to a second interface of the second solenoid valve, and a second interface of the rotary motor is connected to a second interface of the first solenoid valve;

[0014] a first shuttle valve, wherein a first inlet of the first shuttle valve is connected to a third interface of the first solenoid valve, a second inlet of the first shuttle valve is connected to a third interface of the second solenoid valve, and a first adjustable flow valve is arranged on an outlet pipe of the first shuttle valve;

[0015] a first accumulator, wherein the first accumulator is connected to a hydraulic pipeline connected to an outlet of the first shuttle valve, and the first adjustable throttle valve is located between the first shuttle valve and the first accumulator;

[0016] a first pressure sensor, the first pressure sensor being disposed on a connecting pipeline where a hydraulic pipeline at an outlet of the first shuttle valve is connected to the first accumulator, and being used to detect a circuit pressure of the first accumulator;

[0017] a fifth solenoid valve, wherein a first interface of the fifth solenoid valve is connected to the first hydraulic pump via a second output end of the second balancing valve and a third output end and a fourth output end of the multi-way valve assembly in sequence;

[0018] A main hoisting motor, wherein a first interface of the main hoisting motor is connected to a first output end of the second balancing valve, and a second interface of the main hoisting motor is connected to a second interface of the fifth solenoid valve;

[0019] A second accumulator, the second accumulator is arranged on a pipeline outputted by the third interface of the fifth solenoid valve;

[0020] A second pressure sensor is arranged on the connecting pipeline connecting the second accumulator to the third interface of the fifth solenoid valve, and is used to detect the circuit pressure of the second accumulator. A first one-way valve and a second adjustable flow valve are sequentially arranged on the connecting pipeline between the second accumulator and the third interface of the fifth solenoid valve.

[0021] Furthermore, in the above-mentioned extended-range rotary drilling rig energy recovery and reuse control system, the multi-way valve assembly includes two control loops arranged in parallel, wherein each control loop includes:

[0022] A plurality of proportional solenoid valves, wherein the first interfaces of the plurality of proportional solenoid valves are all connected to the hydraulic pipeline at the output end of the second hydraulic pump;

[0023] A three-position six-way solenoid reversing valve, wherein the electromagnetic control ends at both ends of the three-position six-way solenoid reversing valve are respectively connected to two second interfaces of a plurality of the proportional solenoid valves, so as to control the reversing of the three-position six-way solenoid reversing valve; wherein one working oil port of the three-position six-way solenoid reversing valve is connected to the second oil tank as a normal position, the oil inlet port of the three-position six-way solenoid reversing valve is connected to the output end of the first hydraulic pump, the oil return port of the three-position six-way solenoid reversing valve is connected to the first oil tank, and the remaining oil ports are connected to the first balancing valve and the second balancing valve as the first output end and the second output end or the third output end or the fourth output end.

[0024] Further, in the above-mentioned extended-range rotary drilling rig energy recovery and reuse control system, the energy recovery component includes, in addition to the second hydraulic pump, the first solenoid valve, the second solenoid valve, the first accumulator, the first pressure sensor, the first balancing valve, the second pressure sensor, the second accumulator and the fifth solenoid valve in the energy recovery component, the energy recovery component further includes:

[0025] a third solenoid valve, the third solenoid valve being arranged on the hydraulic pipeline where the outlet of the first shuttle valve is located, and the A interface of the third solenoid valve being connected to the hydraulic pipeline of the outlet of the first shuttle valve, and the oil return port of the third solenoid valve being connected to a third oil tank, and the first accumulator and the first pressure sensor being located between the third solenoid valve and the first shuttle valve;

[0026] a fourth solenoid valve, wherein the fourth solenoid valve is arranged on the pipeline where the third interface of the fifth solenoid valve is located, the A interface of the fourth solenoid valve is connected to the third interface of the fifth solenoid valve, the oil return port of the fourth solenoid valve is connected to a fourth oil tank, and the second adjustable flow valve, the first one-way valve, the second accumulator and the second pressure sensor are located between the fourth solenoid valve and the fifth solenoid valve;

[0027] a second shuttle valve, wherein a first inlet of the second shuttle valve is connected to an oil outlet of the third solenoid valve, and a second inlet of the second shuttle valve is connected to an oil outlet of the fourth solenoid valve;

[0028] a hydraulic motor, wherein a power end of the hydraulic motor is connected to the generator, one end of the hydraulic motor is connected to the outlet of the second shuttle valve, and the other end of the hydraulic motor is connected to a fifth oil tank;

[0029] a first proportional solenoid valve, wherein a first interface of the first proportional solenoid valve is connected to a displacement regulator of the hydraulic motor, and a second interface of the first proportional solenoid valve is connected to a hydraulic oil tank;

[0030] A pressure reducing valve, wherein the first interface of the pressure reducing valve is connected to the third interface of the first proportional solenoid valve, and the second interface of the pressure reducing valve is connected to the output end pipeline of the second hydraulic pump through a hydraulic pipeline.

[0031] Furthermore, in the above-mentioned extended-range rotary drilling rig energy recovery and reuse control system, a third overflow valve is provided on the output pipeline of the first accumulator, and a fourth overflow valve is provided on the output pipeline of the second accumulator.

[0032] Furthermore, in the above-mentioned extended-range rotary drilling rig energy recovery and reuse control system, a first overflow valve is provided at the output end of the first hydraulic pump, and a second overflow valve is provided at the output end of the second hydraulic pump.

[0033] Furthermore, in the above-mentioned extended-range rotary drilling rig energy recovery and reuse control system, the pressure reducing valve includes a proportional pressure reducing valve.

[0034] In a second aspect, the present invention further provides an extended-range rotary drilling rig, which includes the above-mentioned extended-range rotary drilling rig energy recovery and reuse control system, and also includes a range extender unit, a high-voltage control unit, a generator and a power battery. The range extender unit is used to generate electricity, and a part of the generated electricity directly drives the generator under the action of the high-voltage control unit, and the other part is used to charge the power battery. The generator is driven by a hydraulic motor in an energy recycling component and is electrically connected to the high-voltage control unit. The power generated by the generator charges the power battery under the action of the high-voltage control unit. The range extender unit is connected to the high-voltage control unit in the extended-range rotary drilling rig, and includes:

[0035] a range extender generator, the range extender generator being electrically connected to a generator controller;

[0036] a range extender engine, the range extender engine being electrically connected to an engine control system;

[0037] A range extender controller is electrically connected to the range extender generator and is connected to a high-voltage control unit in the range-extended rotary drilling rig to charge a power battery in the range-extended rotary drilling rig.

[0038] In a third aspect, the present invention further discloses an extended-range rotary drilling rig energy recovery and reuse control method using the above-mentioned extended-range rotary drilling rig energy recovery and reuse control system, comprising:

[0039] An energy recovery component and an energy reuse component are provided in a control loop of the extended-range rotary drilling rig;

[0040] The circuit formed by the energy recovery component is used to recover the descending potential energy and the slewing braking kinetic energy of the main winch of the extended-range rotary drilling rig;

[0041] The power battery of the extended-range rotary drilling rig is charged through a loop formed by the energy recycling component to achieve energy recycling.

[0042] Further, in the above-mentioned extended-range rotary drilling rig energy recovery and reuse control method, the energy recovery component includes: a first hydraulic pump, a first solenoid valve, a second solenoid valve, a swing motor, a first shuttle valve, a first accumulator, a first pressure sensor, a fifth solenoid valve, a main winch motor, a second accumulator and a second pressure sensor;

[0043] The circuit formed by the energy recovery component recovers the descending potential energy and the slewing braking kinetic energy of the main winch of the extended-range rotary drilling rig, including:

[0044] The main pump motor drives the first hydraulic pump to work, and the first hydraulic pump outputs high-pressure oil to drive the swing motor and the main hoisting motor to work. The first pressure sensor detects the pressure of the first accumulator circuit, and the second pressure sensor detects the pressure of the second accumulator circuit. When the swing brake is applied, and the pressure detected by the first pressure sensor is lower than the minimum set value, the first solenoid valve or the second solenoid valve is energized, and the swing motor return oil chamber produces high-pressure oil. The high-pressure oil produced in the swing motor return oil chamber passes through the first solenoid valve or the second solenoid valve, the first shuttle valve and the first adjustable flow valve into the first accumulator to complete the swing brake energy recovery; when the main hoisting motor is lowered, and the second pressure sensor detects that the pressure is lower than the minimum set value, the fifth solenoid valve is energized, and the main hoisting motor return oil chamber produces high-pressure oil. The high-pressure oil produced in the main hoisting motor return oil chamber passes through the fifth solenoid valve, the second adjustable flow valve and the one-way valve into the second accumulator to complete the main hoisting motor descending energy recovery;

[0045] The energy recycling component includes, in addition to the second hydraulic pump, the first solenoid valve, the second solenoid valve, the first accumulator, the first pressure sensor, the first balancing valve, the second pressure sensor, the second accumulator and the fifth solenoid valve in the energy recovery component, a third solenoid valve, a fourth solenoid valve, a second shuttle valve, a hydraulic motor, a first proportional solenoid valve and a pressure reducing valve;

[0046] The power battery of the extended-range rotary drilling rig is charged through the loop formed by the energy recycling component to achieve energy recycling including:

[0047] When the pressure detected by the first pressure sensor reaches the maximum set value, the first solenoid valve or the second solenoid valve loses power, and the slewing motor can continue to work normally through the first balancing valve, and the third solenoid valve is energized, and the high-pressure oil stored in the first accumulator can reach the oil inlet of the hydraulic motor through the third solenoid valve and the second shuttle valve, driving the hydraulic motor to work and complete the recycling of slewing braking energy; when the pressure detected by the second pressure sensor reaches the maximum set value, the fifth solenoid valve loses power, and the main winch motor can continue to work normally through the second balancing valve, and the fourth solenoid valve is energized, and the high-pressure oil stored in the second accumulator can reach the oil inlet of the hydraulic motor through the fourth solenoid valve and the second shuttle valve, driving the hydraulic motor to work and complete the recycling of the main winch's descending energy.

[0048] The main advantages of the technical solution of the present invention are as follows:

[0049] The energy recovery and reuse control system of the extended-range rotary drilling rig of the present invention recovers the descending potential energy and the slewing braking kinetic energy of the main winch of the extended-range rotary drilling rig through the energy recovery component, and uses the generator to charge the power battery of the extended-range rotary drilling rig through the energy reuse component to realize energy reuse, so that the engine works in the high-efficiency area most of the time, so that the whole machine has high working efficiency, sufficient fuel, low cost, low environmental pollution, and can reduce energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The drawings described herein are used to provide a further understanding of the embodiments of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0051] Figure 1 A hydraulic principle diagram of an energy recovery and reuse control system for an extended-range rotary drilling rig provided by an embodiment of the present invention;

[0052] Figure 2 for Figure 1 The hydraulic principle diagram of the multi-way valve assembly in FIG.

[0053] Figure 3 A schematic flow chart of an energy recovery and reuse control method for an extended-range rotary drilling rig according to an embodiment of the present invention;

[0054] Figure 4 A schematic diagram of energy flow in an extended-range rotary drilling rig and its energy recovery and reuse control system provided in one embodiment of the present invention.

[0055] Description of reference numerals:

[0056] 1. High-pressure control unit; 2. Main pump motor; 3. First hydraulic pump; 4. Second hydraulic pump; 5. First overflow valve; 6. Second overflow valve;

[0057] 7. Multi-way valve assembly; 7.1. Second proportional solenoid valve; 7.2. Third proportional solenoid valve; 7.3. First three-position six-way solenoid reversing valve; 7.4. Fourth proportional solenoid valve; 7.5. Fifth proportional solenoid valve; 7.6. Second three-position six-way solenoid reversing valve;

[0058] 8. First balancing valve; 9. First solenoid valve; 10. Second solenoid valve; 11. Rotary motor; 12. First shuttle valve; 13. First accumulator; 14. Third overflow valve; 15. First pressure sensor; 16. Third solenoid valve; 17. Main hoisting motor; 18. Second shuttle valve; 19. Fourth solenoid valve; 20. Second pressure sensor; 21. Second accumulator; 22. Fourth overflow valve; 23. Third check valve; 24. Fifth solenoid valve;

[0059] 25. Second balancing valve; 26. Third pressure sensor; 27. Hydraulic motor; 28. First proportional solenoid valve; 29. ​​Pressure reducing valve; 30. Hydraulic oil tank; 31. Range extender unit; 32. Power battery; 33. Generator; 34. First adjustable throttle valve; 35. Second adjustable throttle valve. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0061] The technical solution provided by the embodiments of the present invention is described in detail below with reference to the accompanying drawings.

[0062] As attached Figure 1-4 As shown, an embodiment of the present invention provides an energy recovery and reuse control system for an extended-range rotary drilling rig, the system comprising: an energy recovery component and an energy reuse component, wherein:

[0063] The energy recovery component is used to recover the descending potential energy and the rotation braking kinetic energy of the main winch of the extended-range rotary drilling rig; the energy reuse component is used to charge the power battery 32 of the extended-range rotary drilling rig through the generator 33 to achieve energy reuse.

[0064] In summary, the energy recovery and reuse control system of the extended-range rotary drilling rig of the present invention realizes energy recovery and reuse through the use of energy recovery components and energy reuse components, so that the engine works in the high-efficiency area most of the time, thereby having high working efficiency, sufficient fuel, low cost, low degree of environmental pollution, and reducing energy loss.

[0065] Specifically, in the extended-range rotary drilling rig energy recovery and reuse control system of the present invention, the energy recovery component includes: a first hydraulic pump 3, a first solenoid valve 9, a second solenoid valve 10, a rotary motor 11, a first shuttle valve 12, a first accumulator 13, a first pressure sensor 15, a fifth solenoid valve 24, a main winch motor 17, a second accumulator 21 and a second pressure sensor 20, wherein:

[0066] The input end of the first hydraulic pump 3 is fixedly connected to the output end of the main pump motor 2, and the output end of the first hydraulic pump 3 is fixedly connected to the input end of the second hydraulic pump 4; the first interface of the first solenoid valve 9 is connected to the first hydraulic pump 3 through the first output end of the first balancing valve 8 and the first output end and the second output end of the multi-way valve assembly 7 in sequence; the first interface of the second solenoid valve 10 is connected to the second output end of the first balancing valve 8; the first interface of the rotary motor 11 is connected to the second interface of the second solenoid valve 10, and the second interface of the rotary motor 11 is connected to the second interface of the first solenoid valve 9; the first inlet of the first shuttle valve 12 is connected to the third interface of the first solenoid valve 9, the second inlet of the first shuttle valve 12 is connected to the third interface of the second solenoid valve 10, and a first adjustable flow valve 34 is provided on the outlet pipe of the first shuttle valve 12; the first accumulator 13 is connected to the hydraulic pipeline connected to the outlet of the first shuttle valve 12, and the first adjustable flow valve 34 is located between the first shuttle valve 12 and the first The first pressure sensor 15 is arranged on the connecting pipeline of the hydraulic pipeline where the outlet of the first shuttle valve 12 is connected to the first accumulator 13, and is used to detect the circuit pressure of the first accumulator 13; the first interface of the fifth solenoid valve 24 is connected to the first hydraulic pump 3 through the second output end of the second balancing valve 25 and the third output end and the fourth output end of the multi-way valve assembly 7 in sequence; the first interface of the main hoisting motor 17 is connected to the first output end of the second balancing valve 25, and the second interface of the main hoisting motor 17 is connected to the second interface of the fifth solenoid valve 24; the second accumulator 21 is arranged on the pipeline outputted by the third interface of the fifth solenoid valve 24; the second pressure sensor 20 is arranged on the connecting pipeline connecting the second accumulator 21 to the third interface of the fifth solenoid valve 24, and is used to detect the circuit pressure of the second accumulator 21, and the first one-way valve and the second adjustable flow valve 35 are arranged in sequence on the connecting pipeline between the second accumulator 21 and the third interface of the fifth solenoid valve 24.

[0067] Specifically, combined Figure 1 , Figure 3 and Figure 4How the energy recovery and reuse control system of the extended-range rotary drilling rig in the present invention realizes energy recovery through the energy recovery component, and the principle of energy recovery is further described in detail below:

[0068] The main pump motor 2 drives the first hydraulic pump 3 to work. The first hydraulic pump 3 outputs high-pressure oil to drive the rotary motor 11 and the main hoisting motor 17 to work. The first pressure sensor 15 detects the circuit pressure of the first accumulator 13, and the second pressure sensor 20 detects the circuit pressure of the second accumulator 21. During the slewing braking, and the pressure detected by the first pressure sensor 15 is lower than the minimum set value, the first solenoid valve 9 or the second solenoid valve 10 is energized. At this time, the first solenoid valve 9 and the second solenoid valve 10 correspond to the two working conditions of the left and right rotation of the main hoisting motor 17, respectively, and control the up and down movements of the main hoisting motor 17, respectively. Due to the inertia of the whole vehicle, high-pressure oil will be generated in the return oil chamber of the slewing motor 11. This high-pressure oil enters the first accumulator 13 through the first solenoid valve 9, the first adjustable flow valve 34 and the first shuttle valve 12 to complete the slewing braking energy recovery; when the main hoisting motor 17 is lowered, and the second pressure sensor 20 detects that the pressure is lower than the minimum set value, the fifth solenoid valve 24 is energized. Due to the gravity of the drill pipe itself, high-pressure oil will be generated in the return oil chamber of the main hoisting motor 17. This high-pressure oil enters the second accumulator 21 through the fifth solenoid valve 24, the second adjustable flow valve 35 and the one-way valve to complete the descent energy recovery of the main hoisting motor 17.

[0069] It should be noted that, in the present invention, the functions of the first adjustable throttle valve 34 and the second adjustable throttle valve 35 both include adjusting and controlling the energy recovery speed and maintaining the recovery stability, thereby achieving the effect of maintaining the stable operation of the entire vehicle.

[0070] Specifically, the slewing motor 11 in the present invention includes: two overflow valves connected in series and a hydraulic motor 27, and both ends of the hydraulic motor 27 are connected to both ends of the two overflow valves connected in series, and both ends of the hydraulic motor 27 are also connected to the second interface of the first solenoid valve 9 and the second interface of the second solenoid valve 10. The structure of the main hoisting motor 17 is similar to that of the slewing motor 11, and the connection mode of its components is the same as that of the slewing motor 11, except that the hydraulic motor 27 in the slewing motor 11 is replaced by a bidirectional variable hydraulic motor 27.

[0071] Specifically, in the extended-range rotary drilling rig energy recovery and reuse control system of the present invention, the multi-way valve assembly 7 includes two control circuits arranged in parallel, wherein each control circuit includes: a plurality of proportional solenoid valves and a three-position six-way solenoid reversing valve, wherein:

[0072] The first interfaces of multiple proportional solenoid valves are all connected to the hydraulic pipeline at the output end of the second hydraulic pump 4; the electromagnetic control ends at both ends of the three-position six-way solenoid reversing valve are respectively connected to the two second interfaces of the multiple proportional solenoid valves, which are used to control the reversing of the three-position six-way solenoid reversing valve; wherein, one working oil port of the three-position six-way solenoid reversing valve is connected to the second oil tank as a normal position, the oil inlet port of the three-position six-way solenoid reversing valve is connected to the output end of the first hydraulic pump 3, the oil return port of the three-position six-way solenoid reversing valve is connected to the first oil tank, and the remaining oil ports are connected to the first and second output ends or the third output end or the fourth output end with the first balancing valve 8 and the second balancing valve 25.

[0073] Specifically, the composition and working principle of the multi-way valve assembly 7 in the present invention include:

[0074] Combination Figure 1 and Figure 2 As shown in the figure, for the convenience of distinction, the plurality of proportional solenoid valves are numbered as the second proportional solenoid valve 7.1, the third proportional solenoid valve 7.2, the fourth proportional solenoid valve 7.4 and the fifth proportional solenoid valve 7.5 according to their functions and effects; the three-position six-way solenoid reversing valves are numbered as the first three-position six-way solenoid reversing valve 7.3 and the second three-position six-way solenoid reversing valve 7.6, wherein: the proportional solenoid valves in the multi-way valve assembly 7 are powered and oil is connected, specifically, the second proportional solenoid valve 7.1 is powered, the first three-position six-way solenoid reversing valve is powered, The valve core of the directional valve 7.3 works in the left position, and the rotary motor 11 rotates; the third proportional solenoid valve 7.2 is energized, the valve core of the first three-position six-way solenoid reversing valve 7.3 works in the right position, and the rotary motor 11 rotates; the fourth proportional solenoid valve 7.4 is energized, the valve core of the second three-position six-way solenoid reversing valve 7.6 works in the left position, and the main winch motor 17 is in the lifting state; the fifth proportional solenoid valve 7.5 is energized, the valve core of the second three-position six-way solenoid reversing valve 7.6 works in the right position, and the main winch motor 17 is in the descending state.

[0075] Specifically, in order to ensure that the extended-range rotary drilling rig and its energy recovery and reuse control system of the present invention operate stably in a non-energy recovery state, a first balancing valve 8 is provided in the present invention. The first balancing valve 8 is a rotary balancing valve. The composition structure of the rotary balancing valve is as follows: Figure 1 As shown, it includes two groups of externally controlled one-way sequence valves, two groups of externally controlled relief valves, and one group of shuttle valves. Its working principle includes:

[0076] When one of the oil ports is connected to pressurized oil, the pressurized oil passes through the one-way valve in the one-way sequence valve on the same side to one side of the rotary motor 11, and the other pressure oil passes through the internal oil circuit of the valve body to the external control port of the one-way sequence valve on the other side to form a pilot pressure. Due to the presence of the one-way valve in the one-way sequence valve on the other side, the hydraulic oil on the return oil side of the rotary motor 11 will be cut off to the front end of the one-way sequence valve and act on one side of the external control one-way sequence valve. At this time, the hydraulic oil on the return oil side of the rotary motor 11 and the pilot oil act together on one end of the external control one-way sequence valve, and interact with the spring force at the other end of the external control one-way sequence valve. When the pressure can overcome the spring force, the external control one-way sequence valve will be opened, so that the hydraulic oil on the return oil side of the rotary motor 11 can flow smoothly to the main valve and finally return to the oil tank. Among them, the function of the external control relief valve is: the pressure oil from the oil inlet not only acts on the motor oil inlet side and the sequence valve external control port, but also acts on the external control port of the external control one-way sequence valve through the shuttle valve. At this time, the opening pressure of the external control relief valve is the sum of the pressure oil and the spring force, which increases the relief pressure and ensures that the pressure of the driving hydraulic motor can be smoothly established. When there is no pressure oil supply, that is, when the motor is braked, the relief pressure of the external control relief valve is the set spring pressure (its set value is generally much smaller than the spring force of the one-way sequence valve). The high-pressure oil on the return oil side caused by motor braking will pass through the relief valve to the oil inlet side of the motor, which is for braking on the one hand, and prevents the motor from sucking air and protects the components on the other hand.

[0077] On the other hand, in order to ensure that the extended-range rotary drilling rig and its energy recovery and reuse control system of the present invention operate stably in a non-energy recovery state, a second balancing valve 25 is further provided in the present invention. The second balancing valve 25 is a main winch balancing valve. The main winch balancing valve has a structure as shown in FIG. Figure 1 As shown, it includes four one-way valves, a three-position three-way reversing valve, and two one-way throttle valves. The principle is as follows: the pressure oil from the main valve flows to the main winch motor 17 in one way to drive the main winch motor 17 to move, and the other way passes through the one-way throttle valve to form a pilot oil that acts on one side of the three-position three-way reversing valve to compare with the spring pressure on the opposite side. When the pilot oil pressure is less than the spring force, the three-position three-way reversing valve does not change direction, and the return oil of the main winch motor 17 is cut off in the middle position and cannot move. At this time, the main winch can be prevented from falling freely due to the deadweight of the drill pipe. When the pilot oil pressure is greater than the spring force, the three-position three-way reversing valve core overcomes the spring force to move, opening the return oil channel of the main winch motor 17. The oil at the oil outlet of the main winch motor 17 flows back to the main valve through the three-position three-way reversing valve core and the one-way valve, and then returns to the oil tank. Therefore, the main winch works normally. The opened return oil channel has a throttling speed regulation function, and its opening size is related to the pressure of the pressure oil, so it has the ability to automatically adjust overspeed.

[0078] Specifically, in the energy recovery and reuse control system of the extended-range rotary drilling rig of the present invention, the energy recovery component includes the second hydraulic pump 4, the first solenoid valve 9, the second solenoid valve 10, the first accumulator 13, the first pressure sensor 15, the first balancing valve 8, the second pressure sensor 20, the second accumulator 21 and the fifth solenoid valve 24 in the energy recovery component, and also includes: a third solenoid valve 16, a fourth solenoid valve 19, a second shuttle valve 18, a hydraulic motor 27, a first proportional solenoid valve 28 and a pressure reducing valve 29, wherein:

[0079] The third solenoid valve 16 is arranged on the hydraulic pipeline where the outlet of the first shuttle valve 12 is located, and the A interface of the third solenoid valve 16 is connected to the hydraulic pipeline of the outlet of the first shuttle valve 12, and the return oil port of the third solenoid valve 16 is connected to the third oil tank, and the first accumulator 13 and the first pressure sensor 15 are located between the third solenoid valve 16 and the first shuttle valve 12; the fourth solenoid valve 19 is arranged on the pipeline where the third interface of the fifth solenoid valve 24 is located, the A interface of the fourth solenoid valve 19 is connected to the third interface of the fifth solenoid valve 24, and the return oil port of the fourth solenoid valve 19 is connected to the fourth oil tank, and the second adjustable flow valve 35, the first one-way valve, the second accumulator 21 and the second pressure sensor 20 are located between the fourth solenoid valve 19 and The fifth solenoid valve 24; the first inlet of the second shuttle valve 18 is connected to the oil outlet of the third solenoid valve 16, and the second inlet of the second shuttle valve 18 is connected to the oil outlet of the fourth solenoid valve 19; the power end of the hydraulic motor 27 is connected to the generator 33, one end of the hydraulic motor 27 is connected to the outlet of the second shuttle valve 18, and the other end of the hydraulic motor 27 is connected to the fifth oil tank; the first interface of the first proportional solenoid valve 28 is connected to the displacement regulator of the hydraulic motor 27, and the second interface of the first proportional solenoid valve 28 is connected to the hydraulic oil tank 30; the first interface of the pressure reducing valve 29 is connected to the third interface of the first proportional solenoid valve 28, and the second interface of the pressure reducing valve 29 is connected to the output end pipeline of the second hydraulic pump 4 through a hydraulic pipeline.

[0080] Specifically, combined Figure 1 , Figure 3 and Figure 4 How the energy recovery and reuse control system of the extended-range rotary drilling rig in the present invention realizes energy reuse through the energy reuse component, and the principle of energy reuse is further described in detail below:

[0081] When the pressure detected by the first pressure sensor 15 reaches the maximum set value, the first solenoid valve 9 or the second solenoid valve 10 loses power, and the swing motor 11 can continue to work normally through the first balance valve 8, and the third solenoid valve 16 is energized. The high-pressure oil stored in the first accumulator 13 can reach the oil inlet of the hydraulic motor 27 through the third solenoid valve 16 and the second shuttle valve 18, driving the hydraulic motor 27 to work and complete the recycling of the swing braking energy; when the pressure detected by the second pressure sensor 20 reaches the maximum set value, the fifth solenoid valve 24 loses power, and the main winch motor 17 can continue to work normally through the first balance valve 8, and the fourth solenoid valve 19 is energized. The high-pressure oil stored in the second accumulator 21 can reach the oil inlet of the hydraulic motor 27 through the fourth solenoid valve 19 and the second shuttle valve 18, driving the hydraulic motor 27 to work, and completing the recycling of the main winch descending energy.

[0082] It should be noted that, since the hydraulic motor 27 in the present invention has a displacement adjustment interface, the pilot oil output by the second hydraulic pump 4 enters the displacement adjustment mechanism of the hydraulic motor 27 through the pressure reducing valve 29 and the first proportional solenoid valve 28. The whole machine controller adjusts the current value of the pressure reducing valve 29 and the first proportional solenoid valve 28 according to the oil inlet pressure of the hydraulic motor 27 detected by the third pressure sensor 26 and other program parameters, thereby accurately controlling the displacement of the hydraulic motor 27 and making the output of the hydraulic motor 27 more matched with the input of the generator 33.

[0083] In the extended-range rotary drilling rig energy recovery and reuse control system of the present invention, the pressure reducing valve 29 is preferably a proportional pressure reducing valve 29 , and most preferably an electric proportional pressure reducing valve 29 .

[0084] It should also be noted that, in the extended-range rotary drilling rig energy recovery and reuse control system of the present invention, in order to ensure that the descending potential energy of the main winch and the slewing braking kinetic energy are recovered, the power battery 32 is then charged by the generator 33, thereby realizing the reuse process, a first overflow valve 5 is arranged at the output end of the first hydraulic pump 3, a second overflow valve 6 is arranged at the output end of the second hydraulic pump 4, a third overflow valve 14 is arranged on the output pipeline of the first accumulator 13, and a fourth overflow valve 22 is arranged on the output pipeline of the second accumulator 21, wherein the function of the first overflow valve 5 includes overload protection for the oil outlet circuit of the first hydraulic pump 3; the function of the second overflow valve 6 includes overload protection for the oil outlet circuit of the second hydraulic pump 4; the function of the third overflow valve 14 includes overload protection for the oil circuit of the first accumulator 13; the function of the fourth overflow valve 22 includes overload protection for the oil circuit of the second accumulator 21; the function of the second hydraulic pump 4 includes providing pilot oil.

[0085] In summary, the energy recovery and reuse control system of the extended-range rotary drilling rig of the present invention, due to the presence of the range extender unit 31, enables the engine to maintain operation in the high-efficiency zone, with better fuel economy, and a more novel technical route for realizing energy recovery and reuse, and can complete the descent of the main hoisting motor 17 and the recovery of slewing brake energy, and during energy recovery, the flow rate can be controlled by an adjustable flow valve to ensure the stability of the whole machine and avoid problems such as excessive slewing drift or air suction in the descent oil inlet of the main hoist; in the non-energy recovery state, the main hoisting motor 17 and the slewing motor 11 can continue to work through the corresponding balancing valve to ensure the stability of the whole machine; during energy reuse, the control loop composed of the energy reuse component can accurately adjust the displacement of the hydraulic motor 27, so as to achieve the best matching of the hydraulic motor 27 and the generator 33.

[0086] In the second aspect, the present invention also provides an extended-range rotary drilling rig, which includes, in addition to the above-mentioned extended-range rotary drilling rig energy recovery and reuse control system, also includes a range extender unit 31, a high-voltage control unit 1, a generator 33 and a power battery 32, and the range extender unit 31 in the present invention is used to generate electricity, and a part of the generated electricity directly drives the generator 33 under the action of the high-voltage control unit 1, and the other part of the generated electricity is used to charge the power battery 32, the generator 33 is driven by the hydraulic motor 27 in the energy recycling component and is electrically connected to the high-voltage control unit 1, and the power battery 32 is charged by the power generated by the generator 33 under the action of the high-voltage control unit 1, and the range extender unit 31 in the present invention is connected to the high-voltage control unit 1 in the extended-range rotary drilling rig, and the range extender unit 31 includes: a range extender generator, a range extender engine and a range extender controller, wherein:

[0087] A generator controller is electrically connected to the range extender generator; an engine control system is electrically connected to the range extender engine; the range extender controller is electrically connected to the range extender generator, and the range extender controller is connected to the high-voltage control unit 1 in the extended-range rotary drilling rig, for charging the power battery 32 in the extended-range rotary drilling rig.

[0088] Therefore, compared with the traditional rotary drilling rig, the extended-range rotary drilling rig of the present invention replaces the traditional engine power system with a range extender unit 31, and adds a main pump motor 2 and its supporting motor controller, in addition, a power battery 32 and a supporting electronic control system, and on this basis, a hydraulic energy recovery and reuse system is added to help the range extender bear part of the power generation power, further reducing energy loss. The rotary drilling rig in the present invention can recover the main winch's descending potential energy and the slewing braking kinetic energy during operation, and at the same time, the power battery 32 of the extended-range rotary drilling rig is charged by the generator 33 to achieve energy reuse, so that the engine of the rotary drilling rig works in the high-efficiency zone most of the time, the whole machine has high working efficiency, sufficient fuel, low cost, low environmental pollution, and can achieve energy recovery and utilization, reducing energy loss.

[0089] In summary, the extended-range rotary drilling rig of the present invention, since it is equipped with the above-mentioned extended-range rotary drilling rig energy recovery and reuse control system, generates electricity by adding a range extender unit 31, and directly drives the motor with a part of the generated electricity, and the other part is used to charge the power battery 32. The power battery 32 can directly drive the motor to operate. Compared with the traditional fuel engine rotary drilling rig, it has obvious energy-saving advantages, reduces the burden of power generation of the range extender, and makes the whole vehicle more fuel-efficient.

[0090] Thirdly, Figure 3 As shown, the present invention also provides an extended-range rotary drilling rig energy recovery and reuse control method using the above-mentioned extended-range rotary drilling rig energy recovery and reuse control system, comprising:

[0091] An energy recovery component and an energy reuse component are provided in the control circuit of the extended-range rotary drilling rig; the descending potential energy and the slewing braking kinetic energy of the main winch of the extended-range rotary drilling rig are recovered through the circuit formed by the energy recovery component; the power battery 32 of the extended-range rotary drilling rig is charged through the circuit formed by the energy reuse component to realize energy reuse.

[0092] Specifically, combined Figure 1 , Figure 3 and Figure 4The energy recovery component includes: a first hydraulic pump 3, a first solenoid valve 9, a second solenoid valve 10, a swing motor 11, a first shuttle valve 12, a first accumulator 13, a first pressure sensor 15, a fifth solenoid valve 24, a main winch motor 17, a second accumulator 21 and a second pressure sensor 20. The circuit formed by the energy recovery component recovers the descending potential energy and the swing braking kinetic energy of the main winch of the extended-range rotary drilling rig, including: the main pump motor 2 drives the first hydraulic pump 3 to work, the first hydraulic pump 3 outputs high-pressure oil to drive the swing motor 11 and the main winch motor 17 to work, the first pressure sensor 15 detects the circuit pressure of the first accumulator 13, and the second pressure sensor 20 detects the circuit pressure of the second accumulator 21. During the slewing braking, and the pressure detected by the first pressure sensor 15 is lower than the minimum set value, the first solenoid valve 9 or the second solenoid valve 10 is energized. At this time, the first solenoid valve 9 and the second solenoid valve 10 correspond to the two working conditions of the left and right rotation of the main hoisting motor 17, respectively, and control the up and down movements of the main hoisting motor 17, respectively. Due to the inertia of the whole vehicle, the return oil chamber of the slewing motor 11 will produce high-pressure oil, and this high-pressure oil enters the first accumulator 13 through the first solenoid valve 9 or the second solenoid valve 10, the first shuttle valve 12 and the first adjustable flow valve 34 to complete the slewing braking energy recovery; when the main hoisting motor 17 is lowered, and the second pressure sensor 20 detects that the pressure is lower than the minimum set value, the fifth solenoid valve 24 is energized. Due to the gravity of the drill pipe itself, the return oil chamber of the main hoisting motor 17 will produce high-pressure oil, and this high-pressure oil enters the second accumulator 21 through the fifth solenoid valve 24, the second adjustable flow valve 35 and the one-way valve to complete the descent energy recovery of the main hoisting motor 17.The energy recycling component includes, in addition to the second hydraulic pump 4, the first solenoid valve 9, the second solenoid valve 10, the first accumulator 13, the first pressure sensor 15, the first balancing valve 8, the second pressure sensor 20, the second accumulator 21 and the fifth solenoid valve 24 in the energy recovery component, the third solenoid valve 16, the fourth solenoid valve 19, the second shuttle valve 18, the hydraulic motor 27, the first proportional solenoid valve 28 and the pressure reducing valve 29. The power battery 32 of the extended-range rotary drilling rig is charged through the loop formed by the energy recycling component. The energy recycling includes: when the pressure detected by the first pressure sensor 15 reaches the maximum set value, the first solenoid valve 9 or the second solenoid valve 10 loses power, and the energy recycling component is turned off. The rotary motor 11 can continue to work normally through the first balancing valve 8, the third solenoid valve 16 is energized, and the high-pressure oil stored in the first accumulator 13 can reach the oil inlet of the hydraulic motor 27 through the third solenoid valve 16 and the second shuttle valve 18, driving the hydraulic motor 27 to work and complete the recycling of the rotary braking energy; when the pressure detected by the second pressure sensor 20 reaches the maximum set value, the fifth solenoid valve 24 loses power, and the main winch motor 17 can continue to work normally through the second balancing valve 25, the fourth solenoid valve 19 is energized, and the high-pressure oil stored in the second accumulator 21 can reach the oil inlet of the hydraulic motor 27 through the fourth solenoid valve 19 and the second shuttle valve 18, driving the hydraulic motor 27 to work, and completing the recycling of the main winch descending energy.

[0093] At the same time, it should also be noted that in order to make the extended-range rotary drilling rig in the present invention more widely used, the extended-range rotary drilling rig in the present invention can be connected to an external power supply to work.

[0094] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy recovery and reuse control system for an extended-range rotary drilling rig, characterized in that: include: An energy recovery component, the energy recovery component is used to recover the descending potential energy and the slewing braking kinetic energy of the main winch of the extended-range rotary drilling rig; An energy recycling component is used to charge the power battery of the extended-range rotary drilling rig through a generator to achieve energy recycling.

2. The energy recovery and reuse control system for the extended-range rotary drilling rig according to claim 1 is characterized in that: The energy recovery component comprises: a first hydraulic pump, wherein an input end of the first hydraulic pump is fixedly connected to an output end of a main pump motor, and an output end of the first hydraulic pump is fixedly connected to an input end of a second hydraulic pump; a first solenoid valve, wherein a first interface of the first solenoid valve is connected to the first hydraulic pump via a first output end of a first balancing valve and a first output end and a second output end of a multi-way valve assembly in sequence; a second solenoid valve, wherein a first interface of the second solenoid valve is connected to a second output end of the first balancing valve; A rotary motor, wherein a first interface of the rotary motor is connected to a second interface of the second solenoid valve, and a second interface of the rotary motor is connected to a second interface of the first solenoid valve; a first shuttle valve, wherein a first inlet of the first shuttle valve is connected to a third interface of the first solenoid valve, a second inlet of the first shuttle valve is connected to a third interface of the second solenoid valve, and a first adjustable flow valve is arranged on an outlet pipe of the first shuttle valve; a first accumulator, wherein the first accumulator is connected to a hydraulic pipeline connected to an outlet of the first shuttle valve, and the first adjustable throttle valve is located between the first shuttle valve and the first accumulator; a first pressure sensor, the first pressure sensor being disposed on a connecting pipeline where a hydraulic pipeline at an outlet of the first shuttle valve is connected to the first accumulator, and being used to detect a circuit pressure of the first accumulator; a fifth solenoid valve, wherein a first interface of the fifth solenoid valve is connected to the first hydraulic pump via a second output end of the second balancing valve and a third output end and a fourth output end of the multi-way valve assembly in sequence; A main hoisting motor, wherein a first interface of the main hoisting motor is connected to a first output end of the second balancing valve, and a second interface of the main hoisting motor is connected to a second interface of the fifth solenoid valve; A second accumulator, the second accumulator is arranged on a pipeline outputted by the third interface of the fifth solenoid valve; A second pressure sensor is arranged on the connecting pipeline connecting the second accumulator to the third interface of the fifth solenoid valve, and is used to detect the circuit pressure of the second accumulator. A first one-way valve and a second adjustable flow valve are sequentially arranged on the connecting pipeline between the second accumulator and the third interface of the fifth solenoid valve.

3. The energy recovery and reuse control system for the extended-range rotary drilling rig according to claim 2 is characterized in that: The multi-way valve assembly includes two control circuits arranged in parallel, wherein each control circuit includes: A plurality of proportional solenoid valves, wherein the first interfaces of the plurality of proportional solenoid valves are all connected to the hydraulic pipeline at the output end of the second hydraulic pump; A three-position six-way solenoid reversing valve, wherein the electromagnetic control ends at both ends of the three-position six-way solenoid reversing valve are respectively connected to two second interfaces of a plurality of the proportional solenoid valves, so as to control the reversing of the three-position six-way solenoid reversing valve; wherein one working oil port of the three-position six-way solenoid reversing valve is connected to the second oil tank as a normal position, the oil inlet port of the three-position six-way solenoid reversing valve is connected to the output end of the first hydraulic pump, the oil return port of the three-position six-way solenoid reversing valve is connected to the first oil tank, and the remaining oil ports are connected to the first balancing valve and the second balancing valve as the first output end and the second output end or the third output end or the fourth output end.

4. The energy recovery and reuse control system for the extended-range rotary drilling rig according to claim 2 is characterized in that: In addition to the second hydraulic pump, the first solenoid valve, the second solenoid valve, the first accumulator, the first pressure sensor, the first balancing valve, the second pressure sensor, the second accumulator and the fifth solenoid valve in the energy recovery component, the energy recycling component further includes: a third solenoid valve, the third solenoid valve being arranged on the hydraulic pipeline where the outlet of the first shuttle valve is located, and the A interface of the third solenoid valve being connected to the hydraulic pipeline of the outlet of the first shuttle valve, and the oil return port of the third solenoid valve being connected to a third oil tank, and the first accumulator and the first pressure sensor being located between the third solenoid valve and the first shuttle valve; a fourth solenoid valve, wherein the fourth solenoid valve is arranged on the pipeline where the third interface of the fifth solenoid valve is located, the A interface of the fourth solenoid valve is connected to the third interface of the fifth solenoid valve, the oil return port of the fourth solenoid valve is connected to a fourth oil tank, and the second adjustable flow valve, the first one-way valve, the second accumulator and the second pressure sensor are located between the fourth solenoid valve and the fifth solenoid valve; a second shuttle valve, wherein a first inlet of the second shuttle valve is connected to an oil outlet of the third solenoid valve, and a second inlet of the second shuttle valve is connected to an oil outlet of the fourth solenoid valve; a hydraulic motor, wherein a power end of the hydraulic motor is connected to the generator, one end of the hydraulic motor is connected to the outlet of the second shuttle valve, and the other end of the hydraulic motor is connected to a fifth oil tank; a first proportional solenoid valve, wherein a first interface of the first proportional solenoid valve is connected to a displacement regulator of the hydraulic motor, and a second interface of the first proportional solenoid valve is connected to a hydraulic oil tank; A pressure reducing valve, wherein the first interface of the pressure reducing valve is connected to the third interface of the first proportional solenoid valve, and the second interface of the pressure reducing valve is connected to the output end pipeline of the second hydraulic pump through a hydraulic pipeline.

5. The energy recovery and reuse control system for the extended-range rotary drilling rig according to claim 4 is characterized in that: A third overflow valve is arranged on the output pipeline of the first accumulator, and a fourth overflow valve is arranged on the output pipeline of the second accumulator.

6. The energy recovery and reuse control system for the extended-range rotary drilling rig according to claim 4 is characterized in that: A first overflow valve is provided at the output end of the first hydraulic pump, and a second overflow valve is provided at the output end of the second hydraulic pump.

7. The energy recovery and reuse control system for the extended-range rotary drilling rig according to claim 4 is characterized in that: The pressure reducing valve comprises a proportional pressure reducing valve.

8. An extended-range rotary drilling rig, characterized in that: The extended-range rotary drilling rig includes the extended-range rotary drilling rig energy recovery and reuse control system described in any one of claims 1 to 7, and also includes a range extender unit, a high-voltage control unit, a generator and a power battery. The range extender unit is used to generate electricity, and a part of the generated electricity directly drives the generator under the action of the high-voltage control unit, and the other part is used to charge the power battery. The generator is driven by a hydraulic motor in an energy recovery component and is electrically connected to the high-voltage control unit. The power battery is charged by the electricity generated by the generator under the action of the high-voltage control unit. The range extender unit is connected to the high-voltage control unit in the extended-range rotary drilling rig, and includes: a range extender generator, the range extender generator being electrically connected to a generator controller; a range extender engine, the range extender engine being electrically connected to an engine control system; A range extender controller is electrically connected to the range extender generator and is connected to a high-voltage control unit in the range-extended rotary drilling rig to charge a power battery in the range-extended rotary drilling rig.

9. An extended-range rotary drilling rig energy recovery and reuse control method using the extended-range rotary drilling rig energy recovery and reuse control system according to any one of claims 1 to 7, characterized in that: include: An energy recovery component and an energy reuse component are provided in a control loop of the extended-range rotary drilling rig; The potential energy of the main winch of the extended-range rotary drilling rig and the kinetic energy of the rotational braking are recovered through the loop formed by the energy recovery component; The power battery of the extended-range rotary drilling rig is charged through a loop formed by the energy recycling component to achieve energy recycling.

10. The energy recovery and reuse control method of the extended-range rotary drilling rig according to claim 9, characterized in that: The energy recovery assembly includes: a first hydraulic pump, a first solenoid valve, a second solenoid valve, a swing motor, a first shuttle valve, a first accumulator, a first pressure sensor, a fifth solenoid valve, a main winch motor, a second accumulator and a second pressure sensor; The circuit formed by the energy recovery component recovers the descending potential energy and the slewing braking kinetic energy of the main winch of the extended-range rotary drilling rig, including: The main pump motor drives the first hydraulic pump to work, and the first hydraulic pump outputs high-pressure oil to drive the swing motor and the main hoisting motor to work. The first pressure sensor detects the pressure of the first accumulator circuit, and the second pressure sensor detects the pressure of the second accumulator circuit. When the swing brake is applied, and the pressure detected by the first pressure sensor is lower than the minimum set value, the first solenoid valve or the second solenoid valve is energized, and the swing motor return oil chamber produces high-pressure oil. The high-pressure oil produced in the swing motor return oil chamber passes through the first solenoid valve or the second solenoid valve, the first shuttle valve and the first adjustable flow valve into the first accumulator to complete the swing brake energy recovery; when the main hoisting motor is lowered, and the second pressure sensor detects that the pressure is lower than the minimum set value, the fifth solenoid valve is energized, and the main hoisting motor return oil chamber produces high-pressure oil. The high-pressure oil produced in the main hoisting motor return oil chamber passes through the fifth solenoid valve, the second adjustable flow valve and the one-way valve into the second accumulator to complete the main hoisting motor descending energy recovery; The energy recycling component includes, in addition to the second hydraulic pump, the first solenoid valve, the second solenoid valve, the first accumulator, the first pressure sensor, the first balancing valve, the second pressure sensor, the second accumulator and the fifth solenoid valve in the energy recovery component, a third solenoid valve, a fourth solenoid valve, a second shuttle valve, a hydraulic motor, a first proportional solenoid valve and a pressure reducing valve; The power battery of the extended-range rotary drilling rig is charged through the loop formed by the energy recycling component to achieve energy recycling including: When the pressure detected by the first pressure sensor reaches the maximum set value, the first solenoid valve or the second solenoid valve loses power, and the slewing motor can continue to work normally through the first balancing valve, and the third solenoid valve is energized, and the high-pressure oil stored in the first accumulator can reach the oil inlet of the hydraulic motor through the third solenoid valve and the second shuttle valve, driving the hydraulic motor to work and complete the recycling of slewing braking energy; when the pressure detected by the second pressure sensor reaches the maximum set value, the fifth solenoid valve loses power, and the main winch motor can continue to work normally through the second balancing valve, and the fourth solenoid valve is energized, and the high-pressure oil stored in the second accumulator can reach the oil inlet of the hydraulic motor through the fourth solenoid valve and the second shuttle valve, driving the hydraulic motor to work and complete the recycling of the main winch's descending energy.

Images