Field cutting device for petroleum pipeline installation

Abstract

The on-site cutting device for petroleum pipeline installation comprises a top plate, a control display panel is installed at the top end of the top plate, the control display panel is electrically connected with a temperature monitoring probe, a flame cutting head is installed at the bottom end of the top plate, and upper connecting frames are installed on the two sides of the bottom end of the top plate correspondingly; a lower connecting frame is installed at the bottom end of the upper connecting frame, balloons are installed on the inner side walls of the upper connecting frame and the lower connecting frame, and silica gel anti-skid pads are installed on the outer side walls, away from the upper connecting frame or the lower connecting frame, of the balloons. Pipeline inserting pipes are installed on one side of the bottom end of the upper connecting frame and one side of the top end of the lower connecting frame, in the field cutting operation of petroleum pipelines, a traditional mode often faces the problems that the specifications of the pipelines are diversified, and cutting heat damage is serious, and the pain points can be effectively overcome by adopting the mode that cooling liquid of the expandable balloon circulates.

Description

Technical Field

[0001] The present invention relates to metal cutting, and more specifically to the field of pipeline cutting technology, in particular to an on-site cutting device for oil pipeline installation. Background Art

[0002] As global energy demand continues to rise, oil, as a vital energy resource, relies on a vast pipeline network for its transportation and storage. In the oil industry, oil pipelines, with their advantages of high throughput, high continuity, and low cost, have become the primary method for long-distance oil transportation. They are widely used in oilfield production, refinery transportation, and oil depot storage. The ever-expanding scale of oil pipeline construction projects, from land to sea, from plains to mountainous areas, presents extremely high demands on pipeline installation and construction technology. Pipeline cutting is a critical process in oil pipeline installation. Cutting quality directly impacts the tightness and strength of pipeline connections, as well as the operational safety and lifespan of the entire pipeline system.

[0003] In the field of oil pipeline installation engineering, on-site cutting operations are a key step in ensuring precise pipe docking and efficient installation. However, existing on-site oil pipeline cutting devices have exposed significant drawbacks in actual application. On the one hand, due to the wide range of oil pipeline specifications and sizes, with pipe diameters ranging from tens of millimeters to several meters and varying wall thicknesses, traditional cutting devices are difficult to adapt to the diverse pipe sizes. As a result, the pipes are not firmly fixed and have poor stability during the cutting process. This not only affects cutting accuracy and efficiency, but also poses a safety hazard of pipe displacement or even falling off. On the other hand, the large amount of heat generated during the cutting process cannot be dissipated effectively and in a timely manner, causing the local temperature of the pipeline to rise sharply, which can easily lead to problems such as metal material performance degradation and structural deformation, seriously threatening the pipeline's pressure-bearing capacity and service life, and may even cause catastrophic consequences such as pipeline leakage and rupture after installation, posing a huge risk to oil transportation safety.

[0004] After searching, a Chinese patent document discloses a pipe cutting device for oil pipeline installation (publication number: CN108526573A), but it still has the following defects: Although the above-mentioned pipe cutting device for oil pipeline installation can change the position of the oil pipeline according to the measured distance, we only need to cut it, which not only reduces the workload of the staff but also improves work efficiency. However, it still has the problem that the sizes of oil pipelines are different, which leads to poor stability during the on-site cutting process. At the same time, it is easy to cause the pipeline temperature to be too high, resulting in pipeline damage. Summary of the Invention

[0005] The object of the present invention is to provide a on-site cutting device for oil pipeline installation, so as to solve the problems in the above-mentioned background technology that due to the different sizes of oil pipelines, the stability is not good during the on-site cutting process, and at the same time, it is easy to cause the pipeline temperature to be too high, resulting in problems with the pipeline.

[0006] To achieve the above object, the present invention provides the following technical solution: A on-site cutting device for oil pipeline installation, including a top plate, a control display panel is installed at the top end of the top plate, the control display panel is electrically connected to a temperature monitoring probe, a flame cutting head is installed at the bottom end of the top plate, upper connection frames are installed on both sides of the bottom end of the top plate, and a lower connection frame is installed at the bottom end of the upper connection frame. Balloons are installed on the inner side walls of the upper connection frame and the lower connection frame. Silicone anti-slip pads are installed on the outer side walls of the balloons away from the upper connection frame or the lower connection frame. Pipeline insertion tubes are installed on one side of the bottom end of the upper connection frame and the top end of the lower connection frame, and inner cavities with pipeline insertion joints installed are opened on the other side of the bottom end of the upper connection frame and the top end of the lower connection frame. One ends of the pipeline insertion tubes and the pipeline insertion joints are both communicated with the balloons. The bottom end of the pipeline insertion tube installed inside the lower connection frame is connected to the top end of a return pipe, and one end of the return pipe is communicated with one end of a circulation pipe. The circulation pipe snakes through the inside of a number of heat dissipation fins. The heat dissipation fins are installed at equal intervals inside two connection frames. Connection cavities are installed at the front end and the rear end of the connection frame, and dust-proof and heat-dissipating nets are installed at one end of each connection cavity. Fan assemblies are installed at equal intervals inside the connection cavities.

[0007] Preferably, a guide block is installed at the top end of the flame cutting head, and the guide block is movably connected to the inside of the bottom end of a guide cavity. The guide cavity is installed on the outer wall of the bottom end of the top plate. A screw rod transmission structure is installed inside the guide cavity, and the screw rod transmission structure drives the guide block to move back and forth inside the guide cavity.

[0008] Preferably, one end of the flame cutting head is connected to one end of a transmission pipe, the other end of the transmission pipe is connected to the output end of a storage tank, and the storage tank is installed inside the top end of a placement cavity. The placement cavity is installed at the top end of the top plate.

[0009] Preferably, an installation frame is installed on the outer wall of the bottom end of the top plate, and rotation cavities are installed on both inner side walls of the installation frame. Rotation blocks are rotatably connected to the inside of the rotation cavities, and second limit protrusions are installed at equal intervals on the outer side walls of the rotation blocks. The outer side walls of the second limit protrusions are in contact with the outer side walls of first limit protrusions, and the first limit protrusions are installed at equal intervals on the inner side wall of a flexible ring. The flexible rings are all installed inside the rotation cavities. A temperature monitoring probe is installed between the rotation blocks.

[0010] Preferably, the temperature monitoring probe is electrically connected to the control display panel. The function of the temperature monitoring probe is to monitor the temperature of the petroleum pipeline cutting area according to the monitoring threshold and transmit the obtained temperature parameter data to the control display panel. The control display panel includes an intelligent analysis module and a control module. The function of the intelligent analysis module is to obtain the temperature parameter data, intelligently analyze the state of the petroleum pipeline, and generate a control instruction according to the state of the petroleum pipeline. The function of the control module is to adjust the output power of the flame cutting head and the water pump according to the control instruction.

[0011] Preferably, clamping blocks are evenly installed at both sides of the bottom end of the top plate, and the top plate is clamped at the top end of the clamping groove through the clamping blocks. The clamping grooves are evenly installed at the top end of the upper connection frame. Grips are symmetrically installed on the outer walls of both sides of the upper connection frame and the lower connection frame.

[0012] Preferably, insertion pieces are installed between the vertically corresponding grips. The insertion pieces are arranged in a "concave" shape structure. Through cavities are respectively formed at the top end and the bottom end of the insertion piece, and insertion plates are respectively installed through the through cavities. An installation cavity is formed through the lower part of the insertion plate. Elastic clamping blocks are installed on both sides of the installation cavity, and the outer wall of the top end of the elastic clamping block abuts against the outer wall of the bottom end of the insertion piece.

[0013] Preferably, storage boxes are installed at the bottom ends of the lower connection frames. Storage boxes are arranged on both sides of the storage boxes. One side of the storage box is connected to the output end of the left water pump through a pipeline. The input end of the left water pump is communicated with a pipeline socket arranged inside the lower connection frame through a pipeline. The other side of the storage box is connected to the input end of the right water pump through a pipeline. The output end of the right water pump is connected to one end of the circulation pipe.

[0014] Preferably, the front fan assembly is arranged in a positive blade structure, and the rear fan assembly is arranged in a reverse blade structure. An installation frame is installed at the bottom end of the connection frame. Four support arms are hinged to the bottom end of the installation frame through a rotating shaft.

[0015] Preferably, the bottom ends of the four support arms are respectively hinged to the top ends of the sliding blocks through a rotating shaft. The sliding blocks are symmetrically slidably connected inside the sliding cavities. The sliding cavities are symmetrically formed at the top end of the base. Transmission lead screw sleeves are respectively installed through the sliding blocks, and the inner side walls of the transmission lead screw sleeves are meshed with connection lead screws. The outer side wall tooth structures of the two connection lead screws are opposite. One end of one connection lead screw is in transmission connection with one end of a connection gear. The connection gears are respectively meshed inside the transmission chain. A transmission gear is meshed in the middle of the transmission chain, and one end of the transmission gear is in transmission connection with the output end of the motor. The bottom end of the base is fixedly connected to the top end of the stabilizing seat.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In on-site cutting operations of oil pipelines, traditional methods often face problems such as diverse pipeline specifications and severe cutting heat damage. The present invention adopts the method of expandable balloon coolant circulation, which can effectively overcome these pain points. When the balloon is injected with coolant, it quickly expands and can adaptively wrap around both sides of the area of the oil pipeline to be cut. With its flexible deformation characteristics, it can quickly adapt to pipelines with different diameters and shapes, greatly improving the flexibility and convenience of on-site operations. At the same time, during the cutting process, the coolant in the balloon timely absorbs the high heat generated by the pipeline due to cutting, avoiding problems such as deformation and performance degradation of the pipeline due to local overheating, ensuring the structural stability and subsequent use safety of the oil pipeline from the root cause. At the same time, the coolant continuously circulates and flows, and the heat carried by the returned coolant is efficiently absorbed by the heat dissipation fins, ensuring that the coolant always maintains good heat absorption performance, realizing continuous and stable cooling of the pipeline, providing efficient and reliable technical support for on-site cutting operations of oil pipelines, and significantly improving the construction quality and efficiency.

[0017] 2. During the use of the present invention, it can effectively avoid the limitations generated in on-site construction. By quickly matching the height of the oil pipeline between the upper connection frame and the lower connection frame, and coordinating with the outer wall diameter of the oil pipeline, and at the same time, during the carrying and transportation of the device, each part is combined by means of snap connection, etc., which is convenient for disassembly, installation and carrying, bringing convenience to on-site cutting operations of oil pipelines.

[0018] 3. In the oil pipeline cutting operation of the present invention, temperature data is obtained in real time by means of temperature monitoring probes, and intelligent analysis technology is used through the control display panel to predict subsequent temperature changes, which can bring significant advantages in many aspects to the cutting process, effectively improving the cutting quality and operation safety. Combining the material characteristics of the pipeline and the preset temperature threshold, the range of the heat-affected area is accurately judged. When the temperature approaches or exceeds the critical temperature of the material, the system gives timely feedback to remind the operator to adjust the cutting parameters, such as reducing the cutting speed and increasing the cooling intensity, to avoid problems such as pipeline deformation and cracks caused by too high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view structural schematic diagram of the present invention; Figure 2 is the combined part structural schematic diagram of the top plate, control display panel, flame cutting head and temperature monitoring probe in the present invention; Figure 3 is the combined part structural schematic diagram of the mounting rack, rotating cavity, rotating block and temperature monitoring probe in the present invention; Figure 4Schematic diagram of the combined part structure of the clamping groove, upper connection frame, grip, balloon, silicone anti-slip pad, pipe insertion joint pipe and pipe insertion joint in the present invention; Figure 5 Schematic diagram of the combined part structure of the lower connection frame, grip, balloon, silicone anti-slip pad, pipe insertion joint pipe, pipe insertion joint, storage box, heat dissipation fins, connection cavity and stabilizing seat in the present invention; Figure 6 Schematic diagram of the combined part structure of the return pipe, circulation pipe, heat dissipation fins, connection frame, connection cavity, dust-proof heat dissipation net and fan assembly in the present invention; Figure 7 Schematic diagram of the combined part structure of the installation frame, support arm, sliding block, sliding cavity, base, transmission lead screw sleeve and connecting lead screw in the present invention; Figure 8 Schematic diagram of the combined part structure of the insertion piece, through cavity, insertion board, installation cavity and elastic clamping block in the present invention; Figure 9 Schematic diagram of the module part structure of the control display panel in the present invention; Figure 10 Schematic diagram of the specific steps for obtaining the state of the oil pipeline by analyzing the temperature parameter data in the present invention.

[0020] In the figure: 1. Top plate; 2. Control display panel; 3. Guide cavity; 4. Guide block; 5. Lead screw drive structure; 6. Flame cutting head; 7. Transmission pipe; 8. Storage tank; 9. Placement cavity; 10. Mounting frame; 11. Rotation cavity; 12. Flexible ring; 13. First limit convex block; 14. Rotating block; 15. Second limit convex block; 16. Temperature monitoring probe; 17. Clamping block; 18. Clamping groove; 19. Upper connection frame; 20. Lower connection frame; 21. Grip; 22. Insertion piece; 23. Through cavity; 24. Insertion board; 25. Installation cavity; 26. Elastic clamping block; 27. Balloon; 28. Silicone anti-slip pad; 29. Pipe insertion joint pipe; 30. Pipe insertion joint; 31. Storage box; 32. Water pump; 33. Return pipe; 34. Circulation pipe; 35. Heat dissipation fins; 36. Connection frame; 37. Connection cavity; 38. Dust-proof heat dissipation net; 39. Fan assembly; 40. Installation frame; 41. Support arm; 42. Sliding block; 43. Sliding cavity; 44. Base; 45. Transmission lead screw sleeve; 46. Connecting lead screw; 47. Connecting gear; 48. Transmission chain; 49. Transmission gear; 50. Motor; 51. Stabilizing seat. Specific implementation method

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] Embodiment 1: Please refer to Figures 1-8 , a metal cutting of the present invention provides a on-site cutting device for oil pipeline installation, including a top plate 1. The top plate 1 is arranged in a "concave" shape. A guiding cavity 3 is fixedly connected to the middle of the bottom end of the top plate 1. A screw rod transmission structure 5 is fixedly connected inside the guiding cavity 3, and the screw rod transmission structure 5 at least includes a screw rod sleeve, a screw rod, and an output device. The transmission end of the screw rod transmission structure 5 drives a guiding block 4 to move back and forth inside the guiding cavity 3. A flame cutting head 6 for cutting the oil pipeline is fixedly connected to the bottom end of the guiding block 4. The outer side wall of the flame cutting head 6 is fixedly connected to one end of a transmission pipe 7. The other end of the transmission pipe 7 is fixedly connected to the output end of a storage tank 8 storing gas. One end of the transmission pipe 7 close to the storage tank 8 is arranged in a hose material structure, and one end of the transmission pipe 7 close to the flame cutting head 6 is arranged in a hard pipe material structure. The storage tank 8 is installed inside the top end of a placement cavity 9, and the placement cavity 9 is fixedly connected to the top end of the top plate 1.

[0023] During the on-site cutting operation of the oil pipeline, the output power of the flame cutting head 6 is controlled through the control display panel 2, and the screw rod transmission structure 5 operates to make the guiding block 4 move back and forth inside the guiding cavity 3, thereby driving the flame cutting head 6 to move back and forth. The flame cutting head 6 uses a high-speed oxygen flow to jet and burn the metal, and synchronously blows away the molten slag to achieve precise cutting. The gas stored inside the storage tank 8 is supplied to the flame cutting head 6 through the transmission pipe 7.

[0024] Please refer to Figure 1 , Figure 2 , Figure 4 , equally spaced clamping blocks 17 are fixedly connected to the bottom end of the top plate 1. The top plate 1 is clamped inside the top end of a clamping groove 18 through the clamping blocks 17 arranged at the bottom end. The clamping grooves 18 are equally spaced and fixedly connected to the top end of an upper connection frame 19. Lower connection frames 20 are fixedly connected to the bottom ends of the upper connection frames 19. "Concave" shaped grips 21 are fixedly connected to the outer side walls on both sides of the upper connection frame 19 and the lower connection frame 20. An "concave" shaped insertion piece 22 is clamped between the outer walls of the vertically corresponding grips 21 that are in contact with each other. Through cavities 23 are respectively opened at the top end and the bottom end of the insertion piece 22, and insertion plates 24 are respectively inserted inside the through cavities 23. One end outer wall of the insertion plate 24 is in contact with the outer side wall of the corresponding grip 21. Installation cavities 25 are respectively opened below the insertion plates 24. Elastic clamping blocks 26 are symmetrically fixedly connected inside the installation cavities 25. The elastic clamping blocks 26 are composed of springs and limit blocks. The top end outer wall of the elastic clamping blocks 26 is in contact with the bottom end outer wall of the insertion piece 22.

[0025] Please refer toFigure 1 , Figure 8 , the top plate 1 is snap-fitted into the inner top of the snap groove 18 provided at the top of the upper connection frame 19 through the snap blocks 17, thus completing the combination between the top plate 1 and the upper connection frame 19. And since there are several snap blocks 17 provided at the bottom end of the top plate 1, the distance between the two upper connection frames 19 can be adjusted according to actual needs. And the upper connection frame 19 and the lower connection frame 20 are connected and fixed by inserting the insertion piece 22 between two vertically corresponding grips 21. Specifically, the insertion piece 22 is inserted on the outer side wall of the corresponding grip 21, and the insertion plate 24 is inserted into the through cavity 23, so that both the insertion piece 22 and the insertion plate 24 correspond to the outer wall of the corresponding grip 21 and are limited and fixed. After the insertion plate 24 is inserted and limited, at the position where the insertion plate 24 protrudes from the bottom end of the insertion piece 22, the elastic snap block 26 will pop out to limit the insertion plate 24.

[0026] Please refer to Figure 1 , Figure 4 , Figure 5 , the inner side walls of the upper connection frame 19 and the lower connection frame 20 are both fixedly connected with balloons 27, and a silica gel anti-slip pad 28 is fixedly connected to the side of the balloon 27 away from the inner side wall of the corresponding upper connection frame 19 or the inner side wall of the lower connection frame 20. The silica gel anti-slip pad 28 is provided with a high-temperature resistant and high-friction structure. A pipe insertion joint 29 is fixedly connected to one side of the bottom end of the upper connection frame 19 and the top end of the lower connection frame 20, and an inner cavity is provided on the other side of the bottom end of the upper connection frame 19 and the top end of the lower connection frame 20. An inner cavity of a pipe insertion head 30 is fixedly connected to the inner part of the inner cavity. The pipe insertion joint 29 provided at the bottom end of the upper connection frame 19 is inserted into the pipe insertion head 30 provided at the top end of the lower connection frame 20, and the pipe insertion joint 29 provided at the top end of the lower connection frame 20 is inserted into the pipe insertion head 30 provided at the bottom end of the upper connection frame 19. The pipe insertion joint 29 and the pipe insertion head 30 are both communicated with the balloon 27.

[0027] After the upper connection frame 19 and the lower connection frame 20 are combined through the corresponding pipe insertion joint 29 and pipe insertion head 30 respectively, they form a complete pipeline, and then coolant is injected into or discharged from the balloon 27. When the balloon 27 is inflated by injecting coolant, it will wrap around both sides of the area of the oil pipeline to be cut on site. By using this method, it can quickly respond to oil pipelines of different sizes. At the same time, when cutting the oil pipeline, it can absorb the heat generated by the pipeline to ensure the stability of the oil pipeline. And the clamping force of the traditional fixture is insufficient within the range of ±20% of the pipe diameter, while the clamping structure composed of the balloon 27 and the silica gel anti-slip pad 28 can still maintain a clamping force ≥500 N within the range of ±50%.

[0028] Please refer to Figure 1 、 Figure 5 、 Figure 6 At the bottom end of the lower connecting frame 20, a storage tank 31 is fixedly connected. The storage tank 31 stores coolant inside. On both sides of the storage tank 31, water pumps 32 are fixedly connected. The input end of the left water pump 32 is connected to the inside of the storage tank 31 through a pipeline. The output end of the left water pump 32 penetrates through the bottom end inside the lower connecting frame 20 and is connected to the bottom end of the pipeline connector 30. The bottom end of the pipeline insertion pipe 29 fixedly connected inside the lower connecting frame 20 is connected to the top end of the return pipe 33. One end of the return pipe 33 is fixedly connected to one end of the circulation pipe 34. The circulation pipe 34 adopts a serpentine winding method and successively passes through the heat dissipation fins 35. The outer side wall of the circulation pipe 34 is fixedly connected with heat dissipation fins 35 at equal intervals. The end of the circulation pipe 34 away from the return pipe 33 is flange-connected to the input end of the water pump 32 on the right side of the storage tank 31. The output end of the water pump 32 on the right side of the storage tank 31 is connected to the inside of the storage tank 31 through a pipeline. The model of the water pump 32 is IS100-65-250. The output efficiency of the left water pump 32 is slightly greater than that of the right water pump 32.

[0029] When performing on-site cutting operations on pipelines, the coolant is transmitted from the storage tank 31 through the left water pump 32 to the pipeline connector 30 inside the lower connecting frame 20, and then from the pipeline connector 30 to the balloon 27 installed inside the lower connecting frame 20. At the same time, the pipeline connector 30 transmits to the pipeline insertion pipe 29 provided inside the upper connecting frame 19, and then from the pipeline insertion pipe 29 to the balloon 27 installed inside the upper connecting frame 19, thereby filling the balloon 27 with coolant. By controlling the right water pump 32, the coolant in the balloon 27 is returned to the return pipe 33 through the pipeline insertion pipe 29 provided inside the lower connecting frame 20 and the pipeline connector 30 provided inside the upper connecting frame 19 connected thereto. The return pipe 33 introduces the coolant into the serpentine circulation pipe 34. After being absorbed by the heat dissipation fins 35, the end of the circulation pipe 34 returns the coolant to the inside of the storage tank 31 through the right water pump 32. During the return process, it is effectively absorbed by the heat dissipation fins 35. By adopting this method, the coolant can circulate, enabling it to effectively absorb heat, improving the heat absorption effect of the coolant better, and reasonably controlling the temperature of the oil pipeline.

[0030] Please refer to Figure 1 、 Figure 5 、 Figure 6, the heat dissipation fins 35 are fixedly connected at equal intervals inside the two connecting frames 36. Connecting cavities 37 are provided at both the front end and the rear end of the connecting frame 36. One end of the connecting cavity 37 close to the heat dissipation fins 35 is fixedly connected to the outer side wall of the connecting frame 36. One end of each heat dissipation fin 35 is fixedly connected with a dust-proof and heat-dissipating net 38. Inside the front connecting frame 36, fan assemblies 39 with a positive blade structure are fixedly connected at equal intervals, and inside the rear connecting frame 36, fan assemblies 39 with a reverse blade structure are fixedly connected at equal intervals.

[0031] Through the fan assemblies 39 provided at the front end and the rear end, since the front fan assembly 39 has a positive blade structure and the rear fan assembly 39 has a reverse blade structure, in the use of the device, by the operation of both the front fan assembly 39 and the rear fan assembly 39, a wind channel is formed, and then the heat absorbed by the heat dissipation fins 35 is taken away by the wind force, so that the heat dissipation fins 35 are always in a low-temperature state, which is convenient for the heat dissipation fins 35 to absorb the circulation pipe 34.

[0032] Please refer to Figure 1 , Figure 7 , the bottom ends of the two connecting frames 36 are fixedly connected with an installation frame 40. Two groups of lifting and adjusting structures are symmetrically hinged at the bottom end of the installation frame 40. Each group of lifting and adjusting structures is composed of two symmetrically arranged support arms 41. Both sides of the support arms 41 are arranged in a "V" shape. The top ends of the support arms 41 are hinged to the bottom end of the installation frame 40 through a rotating shaft, and the bottom ends of the support arms 41 are hinged to the top ends of the sliding blocks 42 through a rotating shaft. The sliding blocks 42 are symmetrically movably connected to the top inside of the sliding cavity 43. The sliding cavities 43 are symmetrically opened at the top end of the base 44. The bottom end of the base 44 is fixedly connected with a stabilizing seat 51. A transmission screw sleeve 45 is fixedly connected through the inside of each sliding block 42. The inner side walls of the transmission screw sleeves 45 are meshed with a connecting screw 46 through a through hole. The tooth structures on the outer side walls of the two connecting screws 46 are opposite. One end of one of the connecting screws 46 is fixedly connected with a connecting gear 47. The connecting gears 47 are symmetrically meshed inside the transmission chain 48. The middle of the transmission chain 48 is meshed with a transmission gear 49, and one end of the transmission gear 49 is fixedly connected to the output end of the motor 50. The motor 50 is of the YL-902-S model.

[0033] In order to cope with oil pipelines of different heights during the operation process, the motor 50 is controlled to rotate forward or backward, so as to drive the transmission gear 49 to rotate synchronously. The transmission gear 49 drives the transmission chain 48 to rotate, and the transmission chain 48 drives the connecting gear 47 to rotate. The connecting gear 47 drives the connected connecting lead screw 46 to rotate forward or backward. Since the tooth structures on the outer side walls of both sides of the connecting lead screw 46 are arranged in opposite structures, the transmission lead screw sleeve 45 is cooperated to drive the sliding block 42 to move relatively or oppositely in the sliding cavity 43. Thus, since the tops of the sliding blocks 42 are hinged to the bottoms of the support arms 41, the bottoms of the support arms 41 are synchronously driven to move relatively or oppositely. After the support arms 41 move relatively or oppositely, the components above the mounting frame 40 will be lifted or lowered. By adopting this method, the device has no limitations during use, and can thus perfectly adapt to oil pipelines of different heights.

[0034] The top plate 1, the upper connecting frame 19 and the lower connecting frame 20 are all arranged in an aluminum alloy or high-strength engineering plastic structure.

[0035] The specific use process of this embodiment is as follows: First, judge the height of the oil pipeline to be operated, and drive the sliding block 42 to move relatively or oppositely in the sliding cavity 43. Thus, since the tops of the sliding blocks 42 are hinged to the bottoms of the support arms 41, the bottoms of the support arms 41 are synchronously driven to move relatively or oppositely. After the support arms 41 move relatively or oppositely, the components above the mounting frame 40 will be lifted or lowered; Second, the top plate 1 is clamped into the inner top of the clamping groove 18 provided at the top of the upper connecting frame 19 through the clamping block 17, thus completing the combination between the top plate 1 and the upper connecting frame 19. And through the cooperation of the inserting piece 22 and the inserting plate 24, the combination between the upper connecting frame 19 and the lower connecting frame 20 is completed; After that, coolants are injected into the balloon 27. When the balloon 27 expands after the injection of coolants, it will wrap around both sides of the area of the oil pipeline to be cut on site. By adopting this method, it can quickly cope with oil pipelines of different sizes, and at the same time, when cutting the oil pipeline, it can absorb the heat generated by the pipeline; Then, the output power of the flame cutting head 6 is controlled through the control display panel 2, and the lead screw transmission structure 5 is operated to make the guide block 4 move back and forth inside the guide cavity 3, thus driving the flame cutting head 6 to move back and forth. The flame cutting head 6 uses a high-speed oxygen flow to spray and burn the metal, and synchronously blows away the molten slag to achieve precise cutting. And the fuel gas stored in the storage tank 8 is supplied to the flame cutting head 6 through the transmission pipe 7; Finally, the return pipe 33 transfers the coolant to the circulation pipe 34, and the circulation pipe 34 drives the coolant to flow back into the interior of the storage tank 31. During the return process, heat is effectively absorbed by the heat dissipation fins 35, and through the fan assemblies 39 provided at the front end and the rear end. Since the front fan assembly 39 is arranged with a positive blade structure and the rear fan assembly 39 is arranged with a negative blade structure, during the use of the device, by the operation of both the front fan assembly 39 and the rear fan assembly 39, an air duct is formed, and then the heat absorbed by the heat dissipation fins 35 is taken away by the wind force, so that the heat dissipation fins 35 are always in a low-temperature state, facilitating the heat absorption of the heat dissipation fins 35 from the circulation pipe 34. In this way, the on-site cutting device for oil pipeline installation is completed; It should be noted that the present invention is an on-site cutting device for oil pipeline installation. The components are all common standard parts or parts known to those skilled in the art. Its structure and principle can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods. At the idle place of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the adapted monitoring computer and power supply, are connected by wires. For the specific connection means, reference should be made to the above working principle to complete the electrical connection according to the sequence of work among the electrical components. The detailed connection means are well-known techniques in the art.

[0036] Embodiment 2: Please refer to Figure 9 and Figure 10 , the present invention provides an on-site cutting device for oil pipeline installation, including a top plate 1. A control display panel 2 is fixedly connected to the top end of the top plate 1. The control display panel 2 is electrically connected to the flame cutting head 6 and the temperature monitoring probe 16. Rotating blocks 14 are fixedly connected to both sides of the temperature monitoring probe 16. The rotating blocks 14 are rotatably connected to the interior of the rotating cavity 11. The rotating cavities 11 are symmetrically fixedly connected to the inner side walls of the bottom end of the mounting frame 10 arranged in a "concave" structure. The top end of the mounting frame 10 is fixedly connected to the outer wall of the bottom end of the top plate 1. Annular flexible rings 12 are fixedly connected to the interiors of the rotating cavities 11, and first limiting protrusions 13 are fixedly connected to the inner side walls of the flexible rings 12 at equal intervals. The outer side walls of the first limiting protrusions 13 are in contact with the outer side walls of the second limiting protrusions 15. The temperature monitoring probe 16 is a laser probe temperature sensor, and the specific model is SA-D70.

[0037] During the on-site cutting operation of the oil pipeline by the flame cutting head 6, the temperature in the cutting pipeline area is monitored through the temperature monitoring probe 16, and the obtained temperature parameter data is analyzed to assist the operator in correct operation. Moreover, the temperature monitoring probe 16 can freely adjust the angle during use, so as to better correspond to the cutting pipeline area. When the temperature monitoring probe 16 rotates, the rotating block 14 rotates synchronously inside the rotating cavity 11, and after rotation, the outer wall of the first limiting convex block 13 abuts against the outer wall of the second limiting convex block 15 to self-limit the rotated rotating block 14, improving the convenience during the on-site cutting operation of the oil pipeline.

[0038] The function of the temperature monitoring probe 16 is to monitor the temperature in the oil pipeline cutting area according to the monitoring threshold and transmit the obtained temperature parameter data to the control display panel 2. The control display panel 2 includes an intelligent analysis module and a control module. The function of the intelligent analysis module is to obtain the temperature parameter data and intelligently analyze the state of the oil pipeline, and generate a control instruction according to the state of the oil pipeline. The specific steps to obtain the state of the oil pipeline by analyzing the temperature parameter data are as follows: S1: The intelligent analysis module obtains the temperature parameter data. S2: The intelligent analysis module makes a prediction through the LSTM analysis model with the temperature parameter data. S3: The LSTM analysis model predicts the future temperature change trend based on the time series characteristics of the temperature parameter data. S4: Obtain the state of the oil pipeline according to the structure of the future temperature change trend.

[0039] The state of the oil pipeline includes a normal temperature state, a slightly abnormal temperature state, and a severely abnormal temperature state.

[0040] The function of the control module is to adjust the output power of the flame cutting head 6 and the water pump 32 according to the control instruction.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A on-site cutting device for oil pipeline installation, comprising a top plate (1), characterized in that: A flame cutting head (6) is installed at the bottom end of the top plate (1). Upper connecting frames (19) are installed on both sides of the bottom end of the top plate (1), and a lower connecting frame (20) is installed at the bottom end of the upper connecting frame (19). Balloons (27) are installed on the inner side walls of the upper connecting frame (19) and the lower connecting frame (20). Silicone anti-slip pads (28) are installed on the outer side walls of the balloons (27) away from the upper connecting frame (19) or the lower connecting frame (20). Pipe insertion connectors (29) are installed on one side of the bottom end of the upper connecting frame (19) and the top end of the lower connecting frame (20). Inner cavities for installing pipe insertion joints (30) are formed on the other side of the bottom end of the upper connecting frame (19) and the top end of the lower connecting frame (20). One end of each of the pipe insertion connectors (29) and the pipe insertion joints (30) is communicated with the balloon (27). The bottom end of the pipe insertion connector (29) installed inside the lower connecting frame (20) is connected to the top end of a return pipe (33). One end of the return pipe (33) is communicated with one end of a circulation pipe (34). The circulation pipe (34) serpentinely penetrates inside a plurality of heat dissipation fins (35). The heat dissipation fins (35) are installed at equal intervals inside two connecting frames (36). Connecting cavities (37) are installed at the front end and the rear end of the connecting frame (36), and dust-proof and heat-dissipating nets (38) are installed at one end of each of the connecting cavities (37). Fan assemblies (39) are installed at equal intervals inside the connecting cavities (37).

2. The on-site cutting device for oil pipeline installation according to claim 1, characterized in that: A guiding block (4) is installed at the top end of the flame cutting head (6), and the guiding block (4) is movably connected inside the bottom end of a guiding cavity (3). The guiding cavity (3) is installed on the outer wall of the bottom end of the top plate (1). A lead screw transmission structure (5) is installed inside the guiding cavity (3), and the lead screw transmission structure (5) drives the guiding block (4) to move back and forth inside the guiding cavity (3).

3. The on-site cutting device for oil pipeline installation according to claim 1, characterized in that: One end of the flame cutting head (6) is connected to one end of a transmission pipe (7), and the other end of the transmission pipe (7) is connected to the output end of a storage tank (8). The storage tank (8) is installed inside the top end of a placement cavity (9), and the placement cavity (9) is installed at the top end of the top plate (1).

4. The on-site cutting device for oil pipeline installation according to claim 1, characterized in that: A control display panel (2) is installed at the top end of the top plate (1). The control display panel (2) is electrically connected to a temperature monitoring probe (16). An installation frame (10) is installed on the outer wall of the bottom end of the top plate (1), and rotating cavities (11) are installed on both inner side walls of the installation frame (10). A rotating block (14) is rotatably connected inside the rotating cavity (11), and second limiting protrusions (15) are installed at equal intervals on the outer side wall of the rotating block (14). The outer side wall of the second limiting protrusion (15) abuts against the outer side wall of a first limiting protrusion (13), and the first limiting protrusions (13) are installed at equal intervals on the inner side wall of a flexible ring (12). The flexible ring (12) is installed inside the rotating cavity (11). A temperature monitoring probe (16) is installed between the rotating blocks (14).

5. The on-site cutting device for oil pipeline installation according to claim 1, characterized in that: The temperature monitoring probe (16) is electrically connected to the control display panel (2). The function of the temperature monitoring probe (16) is to monitor the temperature of the petroleum pipeline cutting area according to the monitoring threshold and transmit the obtained temperature parameter data to the control display panel (2). The control display panel (2) includes an intelligent analysis module and a control module. The function of the intelligent analysis module is to obtain the temperature parameter data, intelligently analyze the state of the petroleum pipeline, and generate a control instruction according to the state of the petroleum pipeline. The function of the control module is to adjust the output power of the flame cutting head (6) and the water pump (32) according to the control instruction.

6. The on-site cutting device for oil pipeline installation according to claim 1, characterized in that: Clamping blocks (17) are evenly installed on both sides of the bottom end of the top plate (1), and the top plate (1) is clamped at the top end of the clamping groove (18) through the clamping blocks (17). The clamping grooves (18) are evenly installed at the top end of the upper connection frame (19). Grips (21) are symmetrically installed on the outer walls of both sides of the upper connection frame (19) and the lower connection frame (20).

7. The on-site cutting device for oil pipeline installation according to claim 6, wherein: Insertion pieces (22) are installed between the vertically corresponding grips (21). The insertion pieces (22) are arranged in a "concave" shape. Through cavities (23) are respectively formed at the top and bottom ends of the insertion pieces (22), and insertion plates (24) are respectively installed through the through cavities (23). Installation cavities (25) are formed at the lower parts of the insertion plates (24). Elastic clamping blocks (26) are installed on both sides of the installation cavities (25), and the outer walls of the top ends of the elastic clamping blocks (26) are in contact with the outer walls of the bottom ends of the insertion pieces (22).

8. The on-site cutting device for oil pipeline installation according to claim 1, characterized in that: Storage boxes (31) are installed at the bottom ends of the lower connection frames (20). There are storage boxes (31) on both sides of the storage boxes (31). One side of the storage box (31) is connected to the output end of the left water pump (32) through a pipeline. The input end of the left water pump (32) is communicated with a pipeline connector (30) arranged inside the lower connection frame (20) through a pipeline. The other side of the storage box (31) is connected to the input end of the right water pump (32) through a pipeline. The output end of the right water pump (32) is connected to one end of a circulation pipe (34).

9. The on-site cutting device for oil pipeline installation according to claim 1, characterized in that: The front fan assembly (39) is arranged in a positive blade structure, and the rear fan assembly (39) is arranged in a reverse blade structure. An installation frame (40) is installed at the bottom end of the connection frame (36). Four support arms (41) are hinged to the bottom end of the installation frame (40) through a rotating shaft.

10. The on-site cutting device for oil pipeline installation according to claim 9, characterized in that: The bottom ends of the four support arms (41) are all hinged to the top end of the sliding block (42) through a rotating shaft. The sliding blocks (42) are symmetrically and slidably connected to the inside of the sliding cavity (43). The sliding cavities (43) are symmetrically opened at the top end of the base (44). A transmission screw sleeve (45) is penetrated through the inside of each sliding block (42), and a connecting screw (46) is meshed with the inner side wall of the transmission screw sleeve (45). The external teeth of the two connecting screws (46) are arranged in opposite structures. One end of one connecting screw (46) is in transmission connection with one end of the connecting gear (47). The connecting gears (47) are all meshed with the inside of the transmission chain (48). The middle part of the transmission chain (48) is meshed with a transmission gear (49), and one end of the transmission gear (49) is in transmission connection with the output end of the motor (50). The bottom end of the base (44) is fixedly connected to the top end of the stabilizing base (51).

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