Thick-wall cold welded pipe for geological exploration

Abstract

The utility model provides a thick-wall cold welded pipe for geological exploration, which comprises an outer layer pipe, an inner layer pipe is arranged in the outer layer pipe, a micro sensor is arranged in the inner layer pipe, a connecting female head is fixedly arranged on the outer side of the outer layer pipe, a fixing ring is fixedly arranged on the outer side of the outer layer pipe, and the micro sensor is arranged in the inner layer pipe. And a connecting male head is rotationally mounted on the outer side of the fixing ring. According to the thick-wall cold welded pipe for geological exploration, a double-layer composite pipe wall structure is adopted, friction of complex media in the geological exploration process can be effectively resisted, the tolerance of the welded pipe in severe geological environments such as humid and acid-base environments is enhanced, the integrity of the pipe body structure is guaranteed, the connecting mode is easy and convenient to operate, the construction time of an exploration site can be greatly shortened, and the construction efficiency is improved. The working efficiency is improved, the stability of a whole exploration pipeline system is guaranteed, key parameters such as pressure, temperature and stress changes in the pipeline can be monitored in real time, exploration accidents caused by pipe faults are effectively avoided, and the safety and reliability of operation are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of geological exploration, and in particular to a thick-walled cold-welded pipe for geological exploration. Background Technology

[0002] Geological exploration is an important means of obtaining underground geological information, finding mineral resources, and assessing the geological environment. It plays an irreplaceable role in resource development, engineering construction, and environmental protection. In geological exploration operations, pipes are key consumables and are widely used in drilling, sampling, and wall protection. Their performance directly affects the efficiency, quality, and safety of exploration work. As geological exploration expands to deeper and more complex geological areas, higher requirements are placed on the performance of pipes. Thick-walled welded pipe is a type of welded pipe, and its manufacturing process can be divided into three basic methods: cold drawing, cold rolling, and hot rolling. Because thick-walled pipes can withstand greater external pressure and internal stress, they are widely used in deep well drilling and complex strata exploration. Therefore, there is a particular need for a thick-walled cold-welded pipe for geological exploration.

[0003] However, most existing thick-walled pipes are manufactured using hot rolling technology. Hot-rolled pipes have some inherent defects. During the hot rolling process, the pipe's microstructure is prone to inhomogeneity, resulting in relatively weak mechanical properties, especially fatigue resistance and corrosion resistance. Under complex geological exploration conditions, such as in high-stress formations rich in corrosive media, hot-rolled pipes are prone to fatigue cracks, corrosion perforation, and other problems, shortening the service life of the pipes and increasing exploration costs and operational risks. At the same time, traditional single-layer thick-walled cold-welded pipes have limitations in performance and are mostly connected by welding, which is difficult and complex to operate. This cannot significantly shorten the construction time at the exploration site, reduce work efficiency, and the poor sealing of the connection parts makes them prone to loosening under complex geological conditions, failing to ensure the stability of the entire exploration pipeline system. Utility Model Content

[0004] The purpose of this utility model is to provide a thick-walled cold-welded pipe for geological exploration, in order to solve the problems mentioned in the background art. Existing thick-walled pipes are mostly manufactured by hot rolling, but hot-rolled pipes have some inherent defects. During the hot rolling process, the microstructure of the pipe is prone to inhomogeneity, resulting in relatively weak mechanical properties, especially fatigue resistance and corrosion resistance. Under complex geological exploration conditions, such as high-stress strata rich in corrosive media, hot-rolled pipes are prone to fatigue cracks, corrosion perforation and other problems, which shorten the service life of the pipes and increase exploration costs and operational risks. At the same time, traditional single-layer thick-walled cold-welded pipes have the limitation of single performance, and the connection method is mostly welding, which is difficult and complicated to operate. It cannot significantly shorten the construction time on the exploration site and reduce work efficiency. In addition, the sealing of the connection parts is poor and they are prone to loosening under complex geological conditions, which cannot guarantee the stability of the entire exploration pipeline system.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thick-walled cold-welded pipe for geological exploration, comprising an outer tube, an inner tube disposed inside the outer tube, a micro-sensor disposed inside the inner tube, a transmission tube fixedly mounted on the outside of the micro-sensor, a connecting female head fixedly mounted on the outside of the outer tube, a threaded groove formed on the outside of the connecting female head, a fixing ring fixedly mounted on the outside of the outer tube, a connecting male head rotatably mounted on the outside of the fixing ring, an installation thread formed on the outside of the connecting male head, and an installation groove formed on the inside of the connecting male head.

[0006] Preferably, the inner tube is located inside the outer tube, the diameter of the inner tube is smaller than the diameter of the outer tube, and the length of the inner tube is the same as the length of the outer tube.

[0007] Preferably, the micro-sensors and transmission tubes are provided in two identical sets, and the two sets of micro-sensors and transmission tubes are symmetrically distributed about the vertical center line of the inner tube.

[0008] Preferably, the retaining ring and the connecting male are adapted to each other, and the retaining ring and the connecting male are rotatably connected.

[0009] Preferably, the vertical cross-section of the fixing ring is T-shaped, and the fixing ring is adapted to the mounting groove.

[0010] Preferably, the threaded groove and the mounting groove are compatible, and the female connector and the male connector are threaded.

[0011] Preferably, the female connector and the male connector are located at both ends of the outer tube, and the inner diameters of the female connector and the male connector are the same.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This thick-walled cold-welded pipe for geological exploration adopts a double-layer composite pipe wall structure. The inner layer is made of high-strength wear-resistant alloy material, which can effectively resist the friction of complex media such as sand and rock particles during geological exploration, significantly extending the service life of the welded pipe. The outer layer is made of special steel with good toughness and corrosion resistance, which enhances the welded pipe's resistance to harsh geological environments such as humidity and acid / alkali, ensuring the integrity of the pipe structure. It overcomes the limitation of the single-performance characteristics of traditional single-layer thick-walled cold-welded pipes and greatly improves the overall performance. Furthermore, a micro-sensor is installed to monitor key parameters such as pressure, temperature, and stress changes inside the pipe in real time. The system collects parameters and transmits the collected data to the ground monitoring station via a wireless transmission module. Technicians can use this data to monitor the working status of the welded pipe in a timely manner, identifying potential safety hazards such as abnormal pressure and localized stress concentration. This provides real-time and accurate risk warnings for geological exploration operations, effectively preventing exploration accidents caused by pipe failures and improving the safety and reliability of the operation. The system features both female and male connectors, making connection simple and significantly reducing construction time at the exploration site, improving work efficiency. The good sealing of the connection points prevents loosening under complex geological conditions, ensuring the stability of the entire exploration pipeline system. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the three-dimensional disassembled structure of this utility model;

[0016] Figure 4 This is a schematic cross-sectional view of the present invention.

[0017] Figure 5 This is a schematic diagram of the structure of the miniature sensor of this utility model.

[0018] In the diagram: 1. Outer tube; 2. Inner tube; 3. Miniature sensor; 4. Transmission tube; 5. Female connector; 6. Threaded groove; 7. Retaining ring; 8. Male connector; 9. Mounting thread; 10. Mounting groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5 This utility model provides a technical solution: a thick-walled cold-welded pipe for geological exploration, including an outer tube 1, an inner tube 2 inside the outer tube 1, a micro sensor 3 inside the inner tube 2, a transmission tube 4 fixedly installed on the outside of the micro sensor 3, a connecting female head 5 fixedly installed on the outside of the outer tube 1, a threaded groove 6 on the outside of the connecting female head 5, a fixing ring 7 fixedly installed on the outside of the outer tube 1, a connecting male head 8 rotatably installed on the outside of the fixing ring 7, an installation thread 9 on the outside of the connecting male head 8, and an installation groove 10 on the inside of the connecting male head 8.

[0021] Furthermore, the inner tube 2 is located inside the outer tube 1. The diameter of the inner tube 2 is smaller than that of the outer tube 1, and the length of the inner tube 2 is the same as that of the outer tube 1. By setting the outer tube 1 and the inner tube 2, with the inner tube 2 having a smaller diameter than the outer tube 1 and the inner tube 2 having a length the same as that of the outer tube 1, a double-layer composite pipe wall structure is adopted. The inner layer is made of high-strength wear-resistant alloy material, which can effectively resist the friction of complex media during geological exploration, such as sand, gravel, and rock particles, significantly extending the service life of the welded pipe. The outer layer is made of special steel with good toughness and corrosion resistance, which enhances the welded pipe's tolerance to harsh geological environments such as humidity and acid / alkali, ensuring the integrity of the pipe structure, overcoming the limitation of the single-performance characteristics of traditional single-layer thick-walled cold-welded pipes, and greatly improving the overall performance.

[0022] Furthermore, two identical sets of micro-sensors 3 and transmission pipes 4 are provided, and the two sets of micro-sensors 3 and transmission pipes 4 are symmetrically distributed about the vertical center line of the inner tube 2. By setting two sets of micro-sensors 3 and transmission pipes 4, which are located at both ends inside the inner tube 2, key parameters such as pressure, temperature, and stress changes inside the tube can be monitored in real time. The collected data is then transmitted to the ground monitoring station via a wireless transmission module. Technicians can use this data to promptly grasp the working status of the welded pipe and detect potential safety hazards in advance, such as abnormal pressure and local stress concentration. This provides real-time and accurate risk warnings for geological exploration operations, effectively avoiding exploration accidents caused by pipe failures and improving the safety and reliability of the operation.

[0023] Furthermore, the retaining ring 7 and the connecting male 8 are adapted to each other and are rotatably connected. By setting the fit between the retaining ring 7 and the connecting male 8, and by making the retaining ring 7 and the connecting male 8 rotatably connected, the connecting male 8 can rotate on the retaining ring 7, which improves the overall stability.

[0024] Furthermore, the vertical cross-section of the retaining ring 7 is T-shaped, and the retaining ring 7 is adapted to the mounting groove 10. Through the cooperation between the retaining ring 7 and the mounting groove 10, the connection between the retaining ring 7 and the connecting male 8 is more stable, ensuring that the connecting male 8 can rotate on the retaining ring 7, thereby improving the overall stability.

[0025] Furthermore, the threaded groove 6 and the mounting groove 10 are compatible, and the connecting female head 5 and the connecting male head 8 are threaded. By setting the connecting female head 5 and the connecting male head 8, the connection method is simple to operate, which can significantly shorten the construction time at the exploration site and improve work efficiency. At the same time, the connection part has good sealing performance and is not easy to loosen under complex geological conditions, ensuring the stability of the entire exploration pipeline system. In addition, the cooperation between the threaded groove 6 and the mounting groove 10 makes the connection between the connecting female head 5 and the connecting male head 8 more stable.

[0026] Furthermore, the female connector 5 and the male connector 8 are located at both ends of the outer tube 1, and their inner diameters are the same. By setting the female connector 5 and the male connector 8 at both ends of the outer tube 1, and ensuring that their inner diameters are the same, the connection method is easy to operate, which can significantly shorten the construction time at the exploration site and improve work efficiency. At the same time, the connection has good sealing performance and is not easy to loosen under complex geological conditions, thus ensuring the stability of the entire exploration pipeline system.

[0027] Working Principle: Before use, operators first inspect the internal and external environment of the entire equipment to ensure a favorable environment for both the outer and inner layers of the outer tube 1, thus guaranteeing the health and safety of the operators. The inner tube 2 is then fitted inside the outer tube 1. A double-layer composite pipe wall structure is employed. The inner layer is made of high-strength, wear-resistant alloy material, effectively resisting friction from complex media during geological exploration, such as sand and rock particles, significantly extending the service life of the welded pipe. The outer layer is made of special steel with good toughness and corrosion resistance, enhancing the welded pipe's resistance to harsh geological environments such as humidity and acid / alkali conditions, ensuring the integrity of the pipe structure. This overcomes the limitations of traditional single-layer thick-walled cold-welded pipes with limited performance, significantly improving overall performance. Then, two sets of miniature sensors 3 and transmission tubes 4 are fixed to both ends inside the inner tube 2, enabling real-time monitoring of key parameters such as pressure, temperature, and stress changes within the pipe. The collected data is then transmitted wirelessly to the ground monitoring station. Technicians can then analyze this data... Timely data monitoring of the welded pipe's working status allows for early detection of potential safety hazards, such as abnormal pressure and localized stress concentration, providing real-time and accurate risk warnings for geological exploration operations. In this process, the worker fixes the female connector 5 to one end of the outer pipe 1, then rotates the male connector 8 onto the fixing ring 7, and fixes the fixing ring 7 to the other end of the outer pipe 1. The worker then rotates the male connector 8 through the mounting groove 10 on its outer side and the threaded groove 6 on the female connector 5 to connect the two thick-walled cold-welded pipes. This connection method is simple to operate, significantly shortens construction time at the exploration site, improves work efficiency, and ensures good sealing at the connection point, preventing loosening under complex geological conditions and guaranteeing the stability of the entire exploration pipeline system. The worker can then repeat the above process to connect and fix the ends of multiple thick-walled cold-welded pipes in pairs. The operation is simple and convenient. Finally, the worker can also remove or replace multiple thick-walled cold-welded pipes by repeating the above process, making it highly practical.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A thick-walled cold-welded pipe for geological exploration, comprising an outer pipe (1), characterized in that: The outer tube (1) has an inner tube (2) inside, and a micro sensor (3) is installed inside the inner tube (2). A transmission tube (4) is fixedly installed on the outside of the micro sensor (3). A female connector (5) is fixedly installed on the outside of the outer tube (1). A threaded groove (6) is provided on the outside of the female connector (5). A fixing ring (7) is fixedly installed on the outside of the outer tube (1). A male connector (8) is rotatably installed on the outside of the fixing ring (7). An installation thread (9) is provided on the outside of the male connector (8). An installation groove (10) is provided on the inside of the male connector (8).

2. The thick-walled cold-welded pipe for geological exploration according to claim 1, characterized in that: The inner tube (2) is located inside the outer tube (1). The diameter of the inner tube (2) is smaller than the diameter of the outer tube (1). The length of the inner tube (2) is the same as the length of the outer tube (1).

3. The thick-walled cold-welded pipe for geological exploration according to claim 1, characterized in that: The micro-sensors (3) and transmission tubes (4) are provided in two identical sets, and the two sets of micro-sensors (3) and transmission tubes (4) are symmetrically distributed about the vertical center line of the inner tube (2).

4. A thick-walled cold-welded pipe for geological exploration according to claim 1, characterized in that: The fixing ring (7) and the connecting male (8) are adapted to each other, and the fixing ring (7) and the connecting male (8) are rotatably connected.

5. A thick-walled cold-welded pipe for geological exploration according to claim 1, characterized in that: The vertical cross-section of the fixing ring (7) is T-shaped, and the fixing ring (7) is adapted to the mounting groove (10).

6. A thick-walled cold-welded pipe for geological exploration according to claim 1, characterized in that: The threaded groove (6) and the mounting groove (10) are adapted to each other, and the female connector (5) and the male connector (8) are threaded connections.

7. A thick-walled cold-welded pipe for geological exploration according to claim 1, characterized in that: The female connector (5) and the male connector (8) are located at both ends of the outer tube (1), and the inner diameters of the female connector (5) and the male connector (8) are the same.

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