Hydraulic cutting equipment

Abstract

The utility model relates to hydraulic cutting equipment which can prevent a large cutting arm from rising under the action of high-pressure oil gas and comprises a walking device. Cutting the big arm; the cutting device is arranged on the large cutting arm; the lifting mechanism comprises a supporting frame, a rigid connecting structure, a first driving part and a second driving part, the supporting frame is provided with a first supporting end, a second supporting end, a third supporting end and a fourth supporting end, the first supporting end is rotationally connected with the near end of the large cutting arm, the second supporting end is rotationally connected with the walking device, and the third supporting end is rotationally connected with the fourth supporting end; the rigid connecting structure is connected with the far end of the large cutting arm and the first driving part, the first driving part is arranged at the third supporting end and used for driving the large cutting arm to rotate relative to the supporting frame, and the second driving part is connected with the fourth supporting end and the walking device and used for driving the large cutting arm to rotate relative to the supporting frame. The second driving piece is used for driving the supporting frame to rotate relative to the walking device.

Description

Technical Field

[0001] This application relates to the field of water jet cutting technology, and more particularly to a water jet cutting device. Background Technology

[0002] After a blowout occurs at the wellhead, the temperature at the center of the blowout can reach over 1200 degrees Celsius. On-site, it is necessary to use fire monitors to spray water and use high-pressure hydraulic cutting equipment to cut the wellhead device.

[0003] Currently, wellhead emergency cutting equipment in this field usually requires the use of additional drive equipment with attached winches. The shape of the cutting equipment and the height of the cutting boom are adjusted by the attached engineering vehicle. The operation of the equipment is cumbersome and requires the coordinated actions of both the engineering vehicle driver and the operator to complete the wellhead emergency cutting operation.

[0004] In addition, the cutting boom of the wellhead emergency cutting equipment in this field is driven by the rear winch via steel wire. When facing high-pressure wells, the cutting boom will rise under the action of high-pressure oil and gas, making it impossible to effectively achieve cutting and ignition tube pressing operations. Utility Model Content

[0005] Therefore, it is necessary to propose a hydraulic cutting device that can avoid the problem of high-pressure oil and gas easily rising on the cutting boom.

[0006] According to one aspect of this application, a hydraulic cutting device includes a walking device; a cutting arm having a proximal end and a distal end in a longitudinal direction; a cutting device disposed on the cutting arm; and a lifting mechanism including a support frame, a rigid connection structure, a first driving member, and a second driving member. The support frame has a first support end, a second support end, a third support end, and a fourth support end. The first support end is rotatably connected to the proximal end of the cutting arm, and the second support end is rotatably connected to the walking device. The rigid connection structure connects the distal end of the cutting arm to the first driving member. The first driving member is disposed on the third support end and is used to drive the cutting arm to rotate relative to the support frame. The second driving member is connected to the fourth support end and the walking device, respectively, and is used to drive the support frame to rotate relative to the walking device.

[0007] In some embodiments, the second driving member is disposed at the fourth support end, and the second driving member has a telescopic end, which is rotatably connected to the walking device.

[0008] In some embodiments, the support frame includes two support plates spaced apart and connected by a connecting shaft, with the first drive member and the second drive member mounted between the two support plates.

[0009] In some embodiments, the water jet cutting device further includes a spray system mounted on the support frame, the spray system being used to spray and cool the first and second drive components.

[0010] In some embodiments, the spray system includes at least one spray pipe, which is fixedly connected to the third support end and / or the fourth support end.

[0011] In some embodiments, the hydraulic cutting equipment further includes a control device, a first remote monitoring system and two second remote monitoring systems respectively connected to the control device, wherein the first remote monitoring system is located at the far end of the cutting arm, and the two second remote monitoring systems are located on both sides of the support frame in the transverse direction.

[0012] In some embodiments, the cutting device includes two cutting nozzles, a first driving mechanism, and a second driving mechanism. The cutting nozzles are located at the distal end of the cutting arm. The first driving mechanism is driven to drive the two cutting nozzles to move in the longitudinal direction. The second driving mechanism is driven to adjust the distance between the two cutting nozzles in the transverse direction, which is perpendicular to the longitudinal direction.

[0013] In some embodiments, the first driving mechanism includes a connecting rod, a first transmission module, and a first power component. The connecting rod is arranged laterally and connected to the two cutting nozzles. The first transmission module connects the connecting rod to the first power component, and the first power component drives the connecting rod to move longitudinally. The second driving mechanism includes two sliding seats, a second transmission module, and a second power component. The sliding seats are slidably disposed on the connecting rod laterally. The two sliding seats and the two cutting nozzles slide in cooperation in the longitudinal direction. The second transmission module connects the two cutting nozzles to the second power component.

[0014] In some embodiments, the first driving mechanism further includes two guide rails arranged sequentially in the transverse direction, the two guide rails being connected to the two cutting nozzles respectively, and the two guide rails being slidably connected to the connecting rod in the transverse direction; the two guide rails and the two sliding seats are slidably engaged in the longitudinal direction in a one-to-one correspondence.

[0015] In some embodiments, each of the sliding seats has two rows of guide wheels arranged laterally, the two rows of guide wheels being located on both sides of the guide rail, and each row of guide wheels including multiple guide wheels arranged longitudinally.

[0016] In some embodiments, the second transmission module includes a bidirectional lead screw, a second transmission shaft, and a reducer, wherein the two ends of the non-bidirectional lead screw have threads with opposite directions of rotation and are respectively helically connected to two sliding seats; the second transmission shaft is driven to rotate by a second power component, and the reducer drives the second transmission shaft and the bidirectional lead screw to drive the bidirectional lead screw to rotate.

[0017] In some embodiments, both the first power unit and the second power unit are located at the proximal end of the cutting arm, and a fire baffle is provided on the cutting arm, the fire baffle being located between the distal end of the cutting arm and the first power unit and the second power unit.

[0018] In some embodiments, the hydraulic cutting device further includes a cutting position indicating module, which indicates the distance between the cutting device and the device to be cut. The cutting position indicating module includes a positioning structure, an indicating transmission rod, a pointer, an indicating disk, and a return spring. The positioning structure is located at the distal end of the cutting arm. The indicating transmission rod is movably disposed on the cutting arm in a lateral direction. The indicating transmission rod connects the positioning structure and the pointer. The pointer corresponds to different marks on the indicating disk as the indicating transmission rod moves. The return spring is located between the indicating transmission rod and the cutting arm and provides a force to move the positioning structure away from the proximal end of the cutting arm.

[0019] In this application, the first driving component realizes the horizontal adjustment of the cutting boom through a rigid connection structure, and the second driving component drives the support frame to rotate the cutting boom to realize the height adjustment of the cutting boom. Compared with the winch and wire rope adjustment, the transmission accuracy is higher. In addition, the rigid connection structure connects the cutting boom and the support frame, and the three form a rigid triangular structure, which has high stability, so the cutting boom will not rise under the action of high pressure oil and gas. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall assembly of the hydraulic cutting equipment according to an embodiment of this application.

[0021] Figure 2 This is a schematic diagram of a portion of the walking device and lifting mechanism in an embodiment of this application.

[0022] Figure 3 This is a schematic diagram of the cutting arm according to an embodiment of this application.

[0023] Figure 4 This is a schematic diagram of the support mechanism on the cutting arm according to an embodiment of this application.

[0024] Figure 5 This is a schematic diagram of the first drive mechanism on the cutting arm according to an embodiment of this application.

[0025] Figure 6 for Figure 5 A magnified view of point X in the middle.

[0026] Figure 7 This is a schematic diagram of the second drive mechanism on the cutting arm according to an embodiment of this application.

[0027] Figure 8 for Figure 7 A magnified view of point Y in the middle.

[0028] Figure 9 This is a schematic diagram of the cutting position indicator module on the cutting arm according to an embodiment of this application.

[0029] Figures 10 to 13 This is a schematic diagram illustrating the working process of the hydraulic cutting equipment according to an embodiment of this application.

[0030] Figure label:

[0031] 100. Walking device; 110. Tracked power chassis; 120. Control compartment; 130. Electrical control box; 140. Power compartment; 150. Fireproof plate; 160. Emergency control system; 170. Traction mechanism; 180. Counterweight system; 190. Hydraulic support leg; 200. Cutting boom; 201. Fixed boom; 202. Dismantling boom; 210. Reference height measuring device; 220. Fire shield; 230. Cooling system; 300. Cutting device; 310. Cutting nozzle; 320. High-pressure pipeline; 330. First drive mechanism; 331. Connecting rod; 332. First transmission module; 333. First power component; 334. Guide rail; 335. Guide block; 336. Adapter; 340. Second drive mechanism; 341. Sliding seat; 342. Second transmission module; 3421. Two-way lead screw; 3422. Second transmission... Shaft; 3423, Reducer; 343, Second power component; 344, Guide shaft; 345, Guide wheel; 400, Lifting mechanism; 410, Support frame; 411, First support end; 412, Second support end; 413, Third support end; 414, Fourth support end; 415, Connecting shaft; 416, Support plate; 420, Rigid connection structure; 430, First driving component; 440, Second driving component; 450, Spraying system; 500, Support adjustment mechanism; 510, Drive motor; 520, Boom support drive shaft; 530, Boom outrigger; 600, Cutting position indicator module; 610, Positioning structure; 620, Indicator transmission rod; 630, Pointer; 640, Indicator disc; 650, Return spring; 700, First remote monitoring system; 800, Second remote monitoring system; 1, Wellhead to be cut; 2, Ignition tube. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] refer to Figure 1 This application discloses a water-jet cutting device in one embodiment. The water-jet cutting device includes a walking device 100, a cutting arm 200, a cutting device 300, and a lifting mechanism 400.

[0036] The traveling device 100 serves as a support component, providing a mounting base for other components. The traveling device 100 enables the movement of the hydraulic cutting equipment. The cutting boom 200, cutting device 300, lifting mechanism 400, and support mechanism move under the drive of the traveling device 100, thereby adjusting the position of the hydraulic cutting equipment relative to the object being cut. Optionally, the object being cut is the wellhead 1 to be cut (see...). Figure 10 ), such as oil well trees.

[0037] The traveling device 100 is a movable device, such as a vehicle chassis. Optionally, the traveling device 100 includes a tracked powered chassis 110, a control compartment 120, an electrical control box 130, a power compartment 140, a fireproof plate 150, an emergency control system 160, a traction mechanism 170, a counterweight system 180, hydraulic support legs 190, etc., mounted on the tracked powered chassis 110.

[0038] The control cabin 120 contains control modules, including a power operating system and a video monitoring screen control system, to meet the needs of operators for all operational functions such as driving and operating equipment for cutting and hoisting.

[0039] The power compartment 140 includes components such as an engine, hydraulic power motor, transfer case, hydraulic oil tank, and intake air cooling system. The engine in the power compartment 140 drives the hydraulic power motor through the transfer case to provide power to the hydraulic system. The engine is equipped with a generator to provide electricity to the equipment control system. The power compartment 140 can be filled with high-temperature resistant insulation materials such as aluminum silicate to effectively block external high-temperature radiant heat. The compartment has continuous cooling spray cooling measures around its perimeter. Intake air first passes through the spray cooling water before entering the compartment, ensuring that the air temperature inside the compartment meets the engine's intake operating requirements.

[0040] The traction mechanism 170 is designed with height adjustment, enabling rapid connection to various engineering vehicles. This ensures that in case of emergencies, the equipment can be pulled out of the fire zone via the traction mechanism 170 to perform maintenance and repair work. The emergency control system 160 is a third operating system for operating the equipment via a remote controller and control cabin 120, ensuring that the equipment can be cut and replaced at the wellhead in case of emergencies. The counterweight system 180 is located at the near end of the traveling device 100 to balance the overturning moment of the cutting boom 200. The hydraulic support is located at the farthest end of the traveling device 100 to support the entire equipment after cutting and positioning.

[0041] refer to Figure 1 and Figure 2 The cutting boom 200 has a proximal end and a distal end in the longitudinal direction. The cutting boom 200 has a certain length in the longitudinal direction. The proximal end is the end closer to the traveling device 100, and the distal end is the end closer to the wellhead 1 to be cut.

[0042] The cutting boom 200 is composed of three boom units. The two boom units directly connected to the support frame 410 are the fixed boom 201, and the part of the cutting boom 200 where the cutting device 300 is installed is the disassembly boom 202. After the cutting operation is completed, the disassembly boom 202 can be removed, and the ignition tube 2 hoisting bracket can be installed on the fixed boom 201 to complete the hoisting function of the ignition tube 2.

[0043] A cutting device 300 is mounted on the cutting arm 200. Optionally, the cutting device 300 includes a cutting nozzle 310 and a drive mechanism. The cutting nozzle 310 is located at the distal end of the cutting arm 200 and is used to cut the wellhead 1 to be cut. The drive mechanism is used to drive the cutting nozzle 310 to move. The cutting nozzle 310 is connected to a high-pressure water source via a high-pressure pipeline 320.

[0044] refer to Figure 1 and Figure 2 A lifting mechanism 400 is disposed on the traveling device 100. The lifting mechanism 400 is used to adjust the height and level of the cutting arm 200. The lifting mechanism 400 includes a support frame 410, a rigid connection structure 420, a first drive member 430, and a second drive member 440. The support frame 410 has a first support end 411, a second support end 412, a third support end 413, and a fourth support end 414. The first support end 411 is rotatably connected to the proximal end of the cutting arm 200. The second support end 412 is rotatably connected to the traveling device 100. The rigid connection structure 420 connects the distal end of the cutting arm 200 to the first drive member 430. The first drive member 430 is disposed at the third support end 413 and is used to drive the cutting arm 200 to rotate relative to the support frame 410. The second driving member 440 is connected to the fourth support end 414 and the walking device 100 respectively. The second driving member 440 is used to drive the support frame 410 to rotate relative to the walking device 100.

[0045] The support frame 410 is specifically mounted on the tracked powered chassis 110 of the traveling device 100. In the height direction of the traveling device 100, the first support end 411 and the second support end 412 of the support frame 410 are located lower, while the third support end 413 and the fourth support end 414 are located upper. (See reference...) Figure 2 The first support end 411 is located to the left of the second support end 412, closer to the cutting arm 200. The third support end 413 is located to the left of the fourth support end 414, closer to the cutting arm 200.

[0046] Optionally, the first support end 411, the second support end 412, the third support end 413, and the fourth support end 414 are arranged in a quadrilateral shape, but are not limited thereto. For example, the first support end 411, the third support end 413, and the fourth support end 414 are arranged in a straight line, and the four support ends are arranged in a triangle.

[0047] During the cutting process at the wellhead 1, the height of the distal end of the cutting boom 200 is adjusted via the lifting mechanism 400, thereby adjusting the height of the cutting mechanism. Specifically, the second drive unit 440 drives the support frame 410 to rotate relative to the tracked power chassis 110, causing the support frame 410 to rotate the cutting boom 200, thus adjusting the height of the distal end of the cutting boom 200. The first drive unit 430 drives the cutting boom 200 to rotate relative to the support frame 410 via a rigid connection structure 420, achieving horizontal adjustment of the cutting boom 200.

[0048] Specifically, when the cutting arm 200 is in the upward position, the first driving member 430 causes the rigid connecting structure 420 to extend, thereby achieving horizontal adjustment of the cutting arm 200. When the cutting arm 200 is in the downward position, the first driving member 430 causes the rigid connecting structure 420 to retract, thereby achieving horizontal adjustment of the cutting arm 200.

[0049] In this application, the first driving component 430 achieves horizontal adjustment of the cutting boom 200 through the rigid connection structure 420, and the second driving component 440 drives the support frame 410 to rotate the cutting boom 200 to achieve height adjustment of the cutting boom 200. Compared with the winch and wire rope adjustment methods, the transmission accuracy is higher. In addition, the rigid connection structure 420 connects the cutting boom 200 and the support frame 410, and the three form a rigid triangular structure with high stability, so the cutting boom 200 will not rise under the action of high pressure oil and gas.

[0050] Optionally, the rigid connection structure 420 is a rigid rod designed as a single unit. The cross-section of the rigid rod may be circular, trapezoidal, triangular, etc. Optionally, the rigid connection structure 420 includes multiple rigid members that are fixedly connected in sequence. The shape and structure of the rigid members are not limited.

[0051] In some embodiments, reference Figure 1 , Figure 4 The hydraulic cutting equipment also includes a support and adjustment mechanism 500. The support and adjustment mechanism 500 is located at the distal end of the cutting arm 200. During the cutting process of the hydraulic cutting equipment at the wellhead 1, the distal end of the cutting arm can be supported by the support and adjustment mechanism 500. Thus, even if the first drive component 430 and the second drive component 440 fail, the cutting arm 200 has a self-locking function, ensuring the consistency of the cutting nozzle 310 relative to the cutting surface and preventing any deviation in cutting height. The support and adjustment mechanisms 500 are arranged in pairs laterally and work independently, supporting the cutting arm 200 from both sides. This adapts to various terrain conditions, ensuring that the cutting arm 200 is on the same plane both laterally and longitudinally on the cutting surface, guaranteeing the height and flatness of the cutting surface.

[0052] Optionally, the support adjustment mechanism 500 includes a drive motor 510, a boom support drive shaft 520, and boom outriggers 530. The drive motor 510 is located at the proximal end of the cutting boom 200. The boom outriggers 530 are specifically worm gear jacks. The drive motor 510 drives the lifting shaft of the worm gear jack to extend and retract via the boom support drive shaft 520, thereby enabling it to be supported on the ground to support the front end of the cutting boom 200.

[0053] In some embodiments, the hydraulic cutting equipment further includes a control device and a level detection device. A level detection device is also provided on the cutting arm 200. Optionally, the level detection device includes X-axis and Y-axis tilt detection devices to ensure that the X-axis and Y-axis of the cutting arm 200 are in a horizontal state. The level detection device, the lifting mechanism 400, and the support adjustment mechanism 500 are all communicatively connected to the control device, so that the control device can control the operation of the lifting mechanism 400 and the support adjustment mechanism 500 according to the levelness detected by the level detection device.

[0054] In some embodiments, reference is made to Figure 3 The hydraulic cutting equipment also includes a reference height measuring device 210 installed on the cutting boom 200. The reference height measuring device 210 is installed on the cutting boom 200 and is used to detect the height position information of the distal end of the cutting boom 200. The reference height measuring device 210 is communicatively connected to the control device, enabling the control device to control the lifting mechanism 400 and the support adjustment mechanism 500 based on the height position information detected by the reference height measuring device 210.

[0055] Specifically, before the initial cut, the relative height data between the reference height measuring device 210 and the positioning reference platform is recorded. When the hydraulic cutting equipment interrupts cutting and withdraws, and further cutting is required, if the height data detected by the reference height measuring device 210 matches the height data recorded before the initial cut, it is determined that the plane for the second cut is consistent with the plane for the first cut, and a second cutting operation can be performed. With the assistance of this reference height measuring device 210, the efficiency of cutting operations can be greatly improved in situations where visual inspection fails. Furthermore, depending on the actual operating conditions, the equipment can perform multi-dimensional or multiple cutting operations, ensuring the timeliness of current emergency rescue operations.

[0056] The reference height measuring device 210 may be, for example, a position sensor, or other components capable of detecting the position of the far end of the cutting boom 200.

[0057] In some embodiments, reference is made to Figure 1 and Figure 2The second driving member 440 is located at the fourth support end 414 and has a telescopic end that is rotatably connected to the walking device 100. In this embodiment, both the first driving member 430 and the second driving member 440 are integrated on the support frame 410, making maintenance more convenient.

[0058] Optionally, the second drive component 440 is a screw jack. The telescopic end of the screw jack is rotatably connected to the tracked power chassis 110 of the walking device 100. Optionally, the first drive component 430 is a screw jack. The telescopic end of the screw jack is rotatably connected to the proximal end of the rigid connection structure 420.

[0059] In some embodiments, reference is made to Figure 2 The support frame 410 includes two support plates 416 spaced apart and connected by a connecting shaft 415. A first drive member 430 and a second drive member 440 are installed between the two support plates 416. There is a gap between the two support plates 416, and the first drive member 430 and the second drive member 440 can be concealed in the gap.

[0060] In some embodiments, reference is made to Figure 1 and Figure 2 The water jet cutting equipment also includes a spray system 450, which is mounted on the support frame 410. The spray system 450 is used to spray and cool the first drive component 430 and the second drive component 440.

[0061] The spray system 450 is connected to the cooling water source and sprays the first drive component 430 and the second drive component 440 on the support frame 410 to cool them, thereby ensuring the safe operation of the equipment and extending the equipment's working time.

[0062] Optionally, the spray system 450 includes at least one spray pipe, which is fixedly connected to the third support end 413 and / or the fourth support end 414. Specifically, the spray system 450 includes two spray pipes. Each spray pipe is fixed to a support plate 416. The two spray pipes spray and cool the first drive member 430 and the second drive member 440 from both sides.

[0063] In some embodiments, the hydraulic cutting equipment further includes a control device, a first remote monitoring system 700 communicatively connected to the control device, and two second remote monitoring systems 800. The first remote monitoring system 700 is located at the far end of the cutting arm 200, and the two second remote monitoring systems are located on both sides of the support frame 410 in the transverse direction.

[0064] Optionally, the control unit can be installed in the control cabin 120. Each remote monitoring system consists of an explosion-proof, high-temperature resistant, water-cooled camera, a pan-tilt unit, and a remote visualization terminal.

[0065] The first remote monitoring system 700, installed at the front end of the cutting boom 200, is used to monitor the precise position adjustment of the wellhead 1 to be cut and the video of the cutting process. When the hydraulic cutting equipment arrives on site, the first remote monitoring system 700 can be used to assist in observing the distance between the cutting nozzle 310 and the wellhead 1 to be cut, and can observe the working status of the cutting nozzle and the cutting progress.

[0066] Two second remote monitoring systems 800, mounted on the support frame 410, transmit monitoring video to a remote controller and a visualization terminal inside the control cabin 120. These systems assist the driving equipment in moving to the position of the wellhead 1 to be cut and in adjusting the approximate position of the wellhead 1. The two second remote monitoring systems 800 are located on either side of the support frame 410 in the lateral direction, allowing them to monitor the left and right sides of the wellhead 1 to be cut, providing the control device with more accurate and comprehensive environmental information.

[0067] In some embodiments, reference is made to Figure 1 , Figures 5 to 8 The cutting device 300 includes two cutting nozzles 310, a first drive mechanism 330, and a second drive mechanism 340. The cutting nozzles 310 are located at the distal end of the cutting arm 200. The first drive mechanism 330 is driven by the two cutting nozzles 310 and is used to drive the two cutting nozzles 310 to move longitudinally. The second drive mechanism 340 is also driven by the two cutting nozzles 310 and is used to adjust the lateral spacing between the two cutting nozzles 310, ensuring that the lateral and longitudinal directions are perpendicular.

[0068] The first drive mechanism 330 drives the two cutting nozzles 310 to move longitudinally, thereby adjusting the distance between the cutting nozzles 310 and the wellhead 1 to be cut. The second drive mechanism 340 drives the adjustment of the lateral spacing between the two cutting nozzles 310, so that the distance between the two cutting nozzles 310 matches the size of the wellhead 1 to be cut.

[0069] Optional, see reference Figure 5 and Figure 6 The first drive mechanism 330 includes a connecting rod 331, a first transmission module 332, and a first power component 333. The connecting rod 331 is connected to two cutting nozzles 310. The first transmission module 332 connects the connecting rod 331 to the first power component 333, and the first power component 333 drives the connecting rod 331 to move longitudinally. (Reference) Figure 7 and Figure 8 The second drive mechanism 340 includes two sliding seats 341, a second transmission module 342, and a second power component 343. The sliding seats 341 are slidably disposed on the connecting rod 331 in the transverse direction, and the two sliding seats 341 are slidably engaged with the two cutting nozzles 310 in the longitudinal direction. The second transmission module 342 connects the two cutting nozzles 310 and the second power component 343.

[0070] The first power unit 333 and the second power unit 343 are both specifically located at the proximal end of the cutting boom 200. Furthermore, a fire baffle 220 is provided on the cutting boom 200, positioned between the distal end of the cutting boom 200 and the first power unit 333 and the second power unit 343. In this way, the fire baffle 220 provides protection in front of the first power unit 333 and the second power unit 343, thereby preventing the high-pressure oil and gas flame from affecting the first power unit 333 and the second power unit 343.

[0071] The connecting rod 331 is arranged laterally and is connected to both cutting nozzles 310. The output end of the first power unit 333 is connected to the first transmission module 332, and drives the connecting rod 331 to move longitudinally by driving the first transmission module 332 to move longitudinally. The connecting rod 331 drives the cutting nozzles 310 to move longitudinally. The sliding seat 341 is slidably arranged on the connecting rod 331 laterally, so that the sliding seat 341 and the cutting nozzles 310 can move together with the connecting rod 331 laterally.

[0072] Optionally, the sliding seat 341 is also slidably connected to at least one guide shaft 344 disposed on the cutting arm 200. The sliding seat 341 is supported by the guide shaft 344, so that the sliding seat 341 can move smoothly in the lateral direction.

[0073] In the manner described above, when the first power unit 333 drives the connecting rod 331 to move longitudinally, the connecting rod 331 can drive the two cutting nozzles 310 to move synchronously longitudinally on the sliding seat 341, thereby achieving adjustment of the longitudinal position of the cutting nozzles 310. When the second power unit 343 adjusts the lateral position of the two cutting nozzles 310 through the second transmission module 342, the cutting nozzles 310 drive the sliding seat 341 to move laterally relative to the connecting rod 331, thereby achieving adjustment of the lateral spacing between the two cutting nozzles 310.

[0074] In this embodiment, a single power system is used to synchronize the longitudinal movement of the two cutting nozzles 310, enabling synchronous forward and backward cutting operations, thus simplifying the design of the drive mechanism. In this embodiment, the longitudinal cutting range of the cutting nozzles 310 is ≥1200mm. The moving speed of the cutting nozzles 310 can be controlled via any operating system of the remote control / control cabin 120 / emergency control system 160, achieving stepless speed adjustment between 0-300mm / min.

[0075] Optionally, the first power component 333 is specifically a linear motion drive mechanism. For example, the first power component 333 includes a motor and a lead screw reducer. The output end of the lead screw reducer is connected to the first transmission module 332. The first transmission module 332 is specifically a drive shaft capable of moving longitudinally.

[0076] Further, refer to Figure 3 A cooling system 230 is provided at the proximal end of the cutting arm 200. The cooling system 230 is used to cool the first power component 333 and the second power component 343.

[0077] In some embodiments, reference is made to Figure 5 and Figure 6 The first drive mechanism 330 also includes two guide rails 334 arranged sequentially in the transverse direction. The two guide rails 334 are correspondingly connected to the two cutting nozzles 310, and the two guide rails 334 are slidably connected to the connecting rod 331 in the transverse direction. (Reference) Figure 7 and Figure 8 The two guide rails 334 and the two sliding seats 341 slide in a longitudinal direction in a one-to-one correspondence.

[0078] The guide rail 334 allows the cutting nozzle 310 and the connecting rod 331 to slide laterally. Specifically, the cutting nozzle 310 is fixedly connected to the distal end of the guide rail 334. At the same time, a U-shaped adapter 336 is detachably connected to the guide rail 334, and the adapter 336 is slidably sleeved on the connecting rod 331.

[0079] Furthermore, the sliding seat 341 is provided with two rows of guide wheels 345 along the transverse direction. The two rows of guide wheels 345 are located on both sides of the guide rail 334, and each row of guide wheels 345 includes multiple guide wheels 345 arranged longitudinally. Each sliding seat 341 is provided with two rows of guide wheels 345. The two rows of guide wheels 345 form a guide wheel 345 for guiding and engaging with the guide rail 334, enabling the guide rail 334 to move forward stably along the longitudinal direction.

[0080] Optionally, a guide groove is formed on the guide wheel 345. Guide blocks 335 are provided on both sides of the guide rail 334 in the transverse direction. The guide blocks 335 are located in the guide groove. When the guide rail 334 slides longitudinally, the guide wheel 345 also rotates simultaneously, thus making the movement of the guide rail 334 smoother.

[0081] In some embodiments, reference is made to Figure 7 and Figure 8 The second transmission module 342 includes a bidirectional lead screw 3421, a second transmission shaft 3422, and a reducer 3423. The two ends of the bidirectional lead screw 3421 have threads with opposite directions of rotation and are respectively helically connected to two sliding seats 341. The second transmission shaft 3422 is driven to rotate by the second power component 343. The reducer 3423 drives the second transmission shaft 3422 and the bidirectional lead screw 3421 to rotate.

[0082] The two ends of the double-acting screw 3421 are left-hand threads and right-hand threads, respectively. When the second drive shaft 3422 rotates, the rotation of the double-acting screw 3421 is reversed by the reducer 3423. The double-acting screw 3421 causes the two sliding seats 341 to move synchronously and move closer or further away from each other, thereby realizing the adjustment of the lateral spacing between the two cutting nozzles 310.

[0083] In this embodiment, the lateral cutting range of the cutting nozzle 310 is ≥1200mm. The moving speed of the cutting nozzle 310 can be controlled by any operating system of the remote control / control cabin 120 / emergency control system 160, realizing stepless speed adjustment of the nozzle moving speed between 0-300mm / min.

[0084] Optionally, the second power unit 343 includes a rotary motor. The motor shaft of the rotary motor is driven to the proximal end of the second drive shaft 3422.

[0085] The hydraulic cutting equipment described in this application is primarily used for emergency cutting operations following well blowouts, where the flames from high-pressure oil and gas combustion at the wellhead can reach tens of meters in height. The cutting device 300 can only determine the spatial location of the wellhead 1 to be cut by remote visual observation and camera monitoring and adjustment. However, under the condition of high-pressure oil and gas flame jets, it is difficult to visually observe from the camera.

[0086] To ensure the spatial position of the cutting nozzle 310 relative to the wellhead 1 to be cut is confirmed, in some embodiments, reference is made to... Figure 1 , Figure 9 The hydraulic cutting device also includes a cutting position indicator module 600, which is used to indicate the distance between the cutting device 300 and the wellhead 1 to be cut.

[0087] Optionally, the cutting position indicator module 600 includes a positioning structure 610, an indicator transmission rod 620, a pointer 630, an indicator disk 640, and a return spring 650. The positioning structure 610 is located at the distal end of the cutting arm 200. The indicator transmission rod 620 is laterally movably disposed on the cutting arm 200, connecting the positioning structure 610 and the pointer 630. The pointer 630 corresponds to different marks on the indicator disk 640 as the indicator transmission rod 620 moves. The return spring 650 is located between the indicator transmission rod 620 and the cutting arm 200, providing a force to move the positioning structure 610 away from the proximal end of the cutting arm 200.

[0088] The positioning structure 610 is a mechanical positioning structure. For example, the positioning structure 610 is V-shaped. Both the pointer 630 and the indicator dial 640 are positioned near the proximal end of the cutting arm 200. Preferably, both the pointer 630 and the indicator dial 640 are located behind the fire baffle 220, i.e., on the side of the fire baffle 220 facing the proximal end of the cutting arm 200.

[0089] In this application, the cutting position indicator module 600 is in its initial state. Under the action of the return spring 650, the pointer 630 is at the farthest position on the indicator dial 640, and the pointer 630 is at the maximum scale position on the indicator dial 640. During the process of driving the hydraulic cutting equipment towards the wellhead 1 to be cut, through the docking of the positioning structure 610 with the wellhead 1, the wellhead 1 presses the indicator transmission rod 620 towards the proximal end of the cutting arm 200, and the scale indicated by the pointer 630 gradually decreases. When the pointer 630 moves to the corresponding zero position, it indicates that the position confirmation of the cutting nozzle 310 is complete. The final cutting position is confirmed through the longitudinal and lateral movements of the cutting nozzle 310. It is easy to understand that the scale indicated by the pointer 630 indicating the position of the cutting nozzle 310 will be inconsistent depending on the diameter of the wellhead 1 to be cut.

[0090] refer to Figure 1 , Figures 10 to 13 The working principle of the hydraulic cutting device in this application embodiment is as follows.

[0091] The hydraulic cutting equipment of this application embodiment can be operated using three methods: remote control, control from within the control cabin 120, and hydraulic valve group control (emergency control system 160). The equipment is normally operated using remote control or controlled from within the control cabin 120, while hydraulic valve group control can be used for emergency operation control in case of equipment malfunction.

[0092] like Figure 10 As shown, after the hydraulic cutting equipment arrives at the blowout accident site, it uses the walking device 100 to move and, with the assistance of the cutting position indicator module 600, uses the lifting mechanism 400 to lift and level the cutting arm 200 to achieve coarse positioning of the wellhead 1 to be cut. After completing the coarse positioning operation, the high-pressure pipeline 320 and the cooling spray pipeline are connected.

[0093] After that, as Figure 11 As shown, through the lifting and leveling fine-tuning of the cutting boom 200 and the lateral and longitudinal movements of the cutting nozzle 310, the X and Y axes of the cutting boom 200 are both brought into a horizontal position, achieving precise positioning of the cutting nozzle 310 relative to the wellhead 1 to be cut. After positioning, effective support is achieved using the support adjustment mechanism 500 and hydraulic support legs 190 at the distal end of the cutting boom 200. At this point, the equipment meets the cutting requirements and is ready for cutting operations.

[0094] Furthermore, before cutting, a positioning reference platform can be placed in the safe area of ​​the site. The relative height data between the reference height measuring device 210 and the positioning reference platform can be measured and recorded using the reference height measuring device 210, thus completing the spatial height data recording between the cutting boom 200 and the positioning reference platform.

[0095] The high-pressure cutting fluid supply system is activated to perform on-fire cutting operations at the accident wellhead. Depending on the actual working conditions on site, if the cutting operation proceeds smoothly, the equipment can complete the cutting operation in one go and proceed directly to the next step.

[0096] If the on-site working conditions are harsh, or an unexpected anomaly occurs, and the equipment is unable to complete the cutting operation in one go, the equipment may need to be removed from the work site during the process (e.g.) Figure 12 As shown in the diagram, after maintenance, the cutting operation continues. During this stage, high-pressure oil and gas will be sprayed into the wellhead 1 above the wellhead and into the cutting gap of the first cut, generating high-temperature flames. At this time, the cutting height reference plane of the cutting arm 200 is adjusted using the relative height data of the cutting arm 200 and the positioning reference platform recorded initially. When the cutting arm 200 is horizontal and matches the reference height recorded initially, it indicates that the secondary cutting plane of the cutting arm 200 is consistent with the primary cutting plane, and the secondary cutting operation can be carried out.

[0097] After the cutting operation of the accident wellhead is completed, the cut wellhead is lifted away from the work area by the cutting boom 200, and the equipment is returned to the safe work area.

[0098] Furthermore, such as Figure 13 As shown, the lifting mechanism 400 can raise the cutting boom 200, replace the dismantling arm 202 at the far end of the cutting boom 200 with the hoisting bracket for the ignition tube 2, and then perform the installation operation of the ignition tube 2 and the cutting boom 200. The ignition tube 2 is connected to the fixed bracket of the ignition tube at the top and to the cutting boom 200 at the bottom through a rigid adjustable tie rod. The ignition tube 2 and the cutting boom 200 form a rigid triangular structure. The rigid connection structure 420, the cutting boom 200, and the support member 410 form a rigid triangular structure, which ensures the positional stability of the ignition tube 2 in space; and prevents the high-pressure oil and gas and flames from being directly ejected upwards during well blowouts from giving the ignition tube 2 or the cutting boom 200 a downward reaction force, thereby ensuring the smooth installation of the ignition tube 2.

[0099] Afterwards, the driving equipment returned to the accident wellhead, completed the installation of the ignition tube 2 for cutting the wellhead, guided the high-temperature flame to a higher position, removed the cut wellhead flange, replaced the blowout preventer, and shut down the accident wellhead. The emergency cutting and shutdown operation of the blowout accident wellhead was completed.

[0100] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0101] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0102] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0103] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A water jet cutting apparatus characterized by, The hydraulic cutting equipment comprises: a walking device (100); a cutting arm (200) having a proximal end and a distal end in a longitudinal direction; a cutting device (300) arranged on the cutting arm (200); a lifting mechanism (400) comprising a support frame (410), a rigid connecting structure (420), a first driving member (430) and a second driving member (440), the support frame (410) having a first support end (411), a second support end (412), a third support end (413) and a fourth support end (414), the first support end (411) being rotatably connected with the proximal end of the cutting arm (200), the second support end (412) being rotatably connected with the walking device (100), the rigid connecting structure (420) connecting the distal end of the cutting arm (200) with the first driving member (430), the first driving member (430) being arranged on the third support end (413) and used to drive the cutting arm (200) to rotate relative to the support frame (410), and the second driving member (440) being connected with the fourth support end (414) and the walking device (100) respectively and used to drive the support frame (410) to rotate relative to the walking device (100).

2. The hydrodynamic cutting device according to claim 1, characterized in that The second driving member (440) is arranged on the fourth support end (414) and has a telescopic end rotatably connected with the walking device (100).

3. The hydrodynamic cutting device according to claim 2, characterized in that The support frame (410) comprises two support plates (416) arranged at intervals and connected through a connecting shaft (415), and the first driving member (430) and the second driving member (440) are mounted between the two support plates (416).

4. The hydrodynamic cutting device according to claim 2, characterized in that The hydraulic cutting equipment further comprises a spraying system (450) mounted on the support frame (410) and used to spray and cool the first driving member (430) and the second driving member (440).

5. The hydrodynamic cutting device according to claim 4, characterized in that The spraying system (450) comprises at least one spraying pipe fixedly connected with the third support end (413) and / or the fourth support end (414).

6. The hydrodynamic cutting device according to claim 1, characterized in that The hydraulic cutting equipment further comprises a control device, a first remote monitoring system (700) and two second remote monitoring systems (800) in communication connection with the control device, the first remote monitoring system (700) being arranged on the distal end of the cutting arm (200), and the two second remote monitoring systems (800) being located on two sides of the support frame (410) in a transverse direction.

7. The hydrodynamic cutting device according to claim 1, characterized in that The cutting device (300) comprises two cutting nozzles (310), a first driving mechanism (330) and a second driving mechanism (340), wherein the cutting nozzles (310) are arranged at the distal end of the cutting arm (200), the first driving mechanism (330) is in driving connection with the two cutting nozzles (310), and the first driving mechanism (330) is used for driving the two cutting nozzles (310) to move in the longitudinal direction, the second driving mechanism (340) is in driving connection with the two cutting nozzles (310), and the second driving mechanism (340) is used for adjusting the interval of the two cutting nozzles (310) in the transverse direction, and the transverse direction and the longitudinal direction are perpendicular.

8. The hydrodynamic cutting device according to claim 7, characterized in that The first driving mechanism (330) comprises a connecting rod (331), a first transmission module (332) and a first power component (333), the connecting rod (331) is arranged in the transverse direction and connected with the two cutting nozzles (310), the first transmission module (332) connects the connecting rod (331) with the first power component (333), and the first power component (333) is used for driving the connecting rod (331) to move in the longitudinal direction. The second driving mechanism (340) comprises two sliding seats (341), a second transmission module (342) and a second power component (343), the sliding seats (341) are arranged in the transverse direction and on the connecting rod (331), the two sliding seats (341) are in sliding fit with the two cutting nozzles (310) in the longitudinal direction, and the second transmission module (342) connects the two cutting nozzles (310) with the second power component (343).

9. The hydrodynamic cutting device according to claim 8, characterized in that The first driving mechanism (330) further comprises two guide rails (334) arranged in the transverse direction in sequence, the two guide rails (334) are connected with the two cutting nozzles (310) in correspondence, and the two guide rails (334) are in sliding connection with the connecting rod (331) in the transverse direction; the two guide rails (334) are in sliding fit with the two sliding seats (341) in the longitudinal direction in one-to-one correspondence.

10. The hydrodynamic cutting device according to claim 9, characterized in that Two rows of guide wheels (345) are arranged in the transverse direction on each sliding seat (341), and the two rows of guide wheels (345) are located on the two sides of the guide rail (334), and each row of guide wheels (345) comprises a plurality of guide wheels (345) arranged in the longitudinal direction.

11. The hydrodynamic cutting device according to claim 8, characterized in that The second transmission module (342) comprises a bidirectional screw (3421), a second transmission shaft (3422) and a speed reducer (3423), wherein the two ends of the bidirectional screw (3421) are provided with threads with opposite rotation directions and are in screw connection with the two sliding seats (341) respectively, the second transmission shaft (3422) is driven to rotate by the second power component (343), and the speed reducer (3423) is in driving connection between the second transmission shaft (3422) and the bidirectional screw (3421) to drive the bidirectional screw (3421) to rotate.

12. The hydrodynamic cutting device according to claim 8, characterized in that The first power component (333) and the second power component (343) are arranged at the proximal end of the cutting arm (200), and a fire baffle (220) is arranged on the cutting arm (200) and located between the distal end of the cutting arm (200) and the first power component (333) and the second power component (343).

13. The hydrodynamic cutting device according to claim 1, characterized in that The hydraulic cutting equipment further comprises a cutting position indicating module (600) for indicating the distance between the cutting device (300) and the equipment to be cut, the cutting position indicating module (600) comprising a positioning structure (610), an indicating transmission rod (620), a pointer (630), an indicating disc (640) and a reset spring (650), wherein the positioning structure (610) is arranged at the distal end of the cutting arm (200), the indicating transmission rod (620) is movably arranged on the cutting arm (200) in the transverse direction, the indicating transmission rod (620) is connected with the positioning structure (610) and the pointer (630), the pointer (630) corresponds to different marks on the indicating disc (640) when the indicating transmission rod (620) moves, and the reset spring (650) is arranged between the indicating transmission rod (620) and the cutting arm (200) and is used to provide a force for moving the positioning structure (610) away from the proximal end of the cutting arm (200).

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