Mine pipeline conveying device and pipeline leakage detection system thereof

Abstract

The invention provides a mine pipeline conveying device and a pipeline leakage detection system thereof. The mine pipeline conveying device comprises a main pipeline, a flange connecting disc and a high-pressure sealing ring, and the sealing performance of connection is ensured. The bent arc-shaped pipe fitting can change the direction of the pipeline, the exhaust valve is used for exhausting gas in the pipeline, and the pressure release valve is used for releasing overhigh pressure. A buffering system composed of a water hammer buffering plate, a water hammer buffering piston rod, a water hammer buffering damping spring and a water hammer piston air cylinder can relieve impact of the water hammer effect on a pipeline, and the leakage position and the leakage amount can be accurately calculated through a leakage positioning calculation unit in the data processing module according to data of multiple sensors; accurate guidance is provided for subsequent maintenance and processing, and troubleshooting time and cost are reduced. When leakage is detected by the emergency processing module, preset emergency measures can be automatically started, for example, related valves are rapidly closed, standby pipelines are started in time, leakage loss is reduced to the maximum extent, normal operation of mine pipeline conveying is guaranteed, and economic loss caused by production interruption is reduced.

Description

Technical Field

[0001] The present invention relates to the field of pipeline transportation devices, and in particular to a mine pipeline transportation device and a pipeline leakage detection system thereof. Background Art

[0002] In mining operations deep in the mines, oil is an important power and lubricant, and its stable and efficient delivery is crucial to ensure the normal operation of mining machinery. In view of the complexity of the mine terrain and the particularity of oil transportation, pipeline transportation has become the preferred method of oil transportation.

[0003] The mine oil transportation pipeline system proposed by the Chinese invention patent application number: CN202410476165.X includes a main pipeline, which has an extended downward pipe section, a horizontal input pipe section connected to the upper end of the downward pipe section, and a horizontal output pipe section connected to the lower end of the downward pipe section. The downward pipe section is connected in series with an oil flow resistance increasing and speed reducing device, the output pipe section is connected in series with a water hammer eliminator, the input pipe section is provided with an electric control flow regulator, and the main pipeline is provided with an oil pressure automation monitoring system, which is connected to the electric control flow regulator. Advantages: It can play the role of increasing resistance and speed reducing caused by free fall during the downward transportation of oil, so as to avoid the generation of static electricity and oil gas generated by friction, and can effectively slow down and eliminate the impact of water hammer on the pipeline system during the opening and closing process of oil transportation. The oil pressure automation monitoring system can monitor the pipeline oil pressure in real time and adjust the flow of the electric control flow regulator, greatly enhancing the safety and reliability of oil pipeline transportation.

[0004] However, the existing pipeline transportation devices have some shortcomings during use and still need to be improved. First of all, the oil transportation pipelines deep in the mines often need to pass through multiple geological layers and withstand huge vertical pressure. This pressure will cause the so-called "hammer effect" when the materials (including oil and possible mixed impurities) pass through the pipeline. This effect is due to the huge impact force generated when the material falls rapidly under the action of gravity and hits the bottom of the pipeline or the blockage in front. This impact force will not only cause increased wear of the pipeline, but may also cause vibration and displacement of the pipeline, thereby causing leakage of the pipeline. What is more serious is that when the blocked material is flushed out by the subsequent huge gas pressure (such as that generated by the pumping system), a pulse jet will be formed, causing serious impact and damage to the inner wall of the pipeline and surrounding equipment.

[0005] Secondly, although the existing buffer devices can alleviate the "hammer effect" to a certain extent, their effect is not ideal. These devices often have problems such as complex structure, high maintenance cost, and poor adaptability, and it is difficult to operate stably for a long time in the harsh working environment deep in the mine. Especially in the process of high-pressure and high-speed oil transportation, the efficiency of these buffer devices is greatly reduced.

[0006] Finally, the existing mine pipeline transportation system generally lacks effective means of detecting leakage. Due to the complex and changeable working environment deep in the mine, once a pipeline leaks, it is often not discovered and handled in time, resulting in oil waste, environmental pollution and even safety accidents. Therefore, we make improvements to this and propose a mine pipeline transportation device and its pipeline leakage detection system. Summary of the invention

[0007] The purpose of the present invention is to solve the problems raised by the existing background technology. In order to achieve the above invention purpose, the present invention provides the following technical solutions: a mine pipeline transportation device, comprising a main pipeline, a pipeline connecting frame is arranged on the main pipeline, the main pipeline is connected to a connecting pipe, a flange connecting plate is arranged on the connecting pipe, a high-pressure sealing ring is arranged on the flange connecting plate, a wear-resistant lining is arranged on the inner ring of the high-pressure sealing ring, a curved arc pipe is arranged in the middle of the connecting pipe,

[0008] The angle range of the curved arc tube is α, and the range of α is 62°<α<93°;

[0009] The effect of the angle α of the curved pipe (4) on the fluid flow is expressed by the formula for calculating the flow velocity through α:

[0010]

[0011] Where: P1 and P2 are the pressures at both ends of the pipeline;

[0012] ρ is the fluid density;

[0013] α1 and α2 are the inner and outer radii of the pipe; α1 and α2 range between 62° and 93°;

[0014] δ is the friction factor;

[0015] D is the pipe diameter;

[0016] The curved arc-shaped pipe fitting is provided with an exhaust valve and a pressure relief valve; a water hammer buffer plate is provided at the lower part of the curved arc-shaped pipe fitting, a water hammer buffer piston rod is provided below the water hammer buffer plate, the water hammer buffer piston rod is sleeved inside the water hammer piston cylinder, an L-shaped spring baffle is provided on the middle outer surface of the water hammer buffer piston rod, a water hammer buffer damping spring is provided below the L-shaped spring baffle, the other end of the water hammer buffer damping spring is connected to the bottom of the water hammer piston cylinder, and a buffer air chamber is provided below the water hammer piston cylinder;

[0017] The impact pressure formula of water hammer on water hammer piston cylinder (702) is:

[0018]

[0019] Where: P is pressure;

[0020] X is the position along the pipe;

[0021] t is time;

[0022] ρ is the fluid density;

[0023] k is the bulk modulus of the fluid;

[0024] The main pipeline is provided with a guide loop pipe, a pipeline loop frame is provided in the guide loop pipe, a loop frame groove is provided on the pipeline loop frame, a connecting side plate is provided on the pipeline loop frame, an arc groove is provided on the connecting side plate, the angle of the arc groove is β, and the range of β is 32°<β<64°, a flow sensor is provided in the arc groove, a pressure sensor is provided on the inner side of the main pipeline, and the flow sensor and the pressure sensor are wirelessly connected to the wireless micro-control sensor.

[0025] As a preferred technical solution of the present invention, the pipe spiral frame is connected to the diversion connecting flange, a fan-shaped diversion buffer box is arranged on the rear side of the diversion connecting flange, a diversion connecting pipe is arranged at the end of the fan-shaped diversion buffer box, and the diversion connecting pipe is connected to the diversion pipe.

[0026] As a preferred technical solution of the present invention, the fan-shaped expansion angle of the fan-shaped shunt buffer box is θ, and the range of θ is 45°<β<75°. There are 4 shunt connecting pipes and shunt pipes, which are evenly distributed on the fan-shaped end face of the fan-shaped shunt buffer box.

[0027] As a preferred technical solution of the present invention, four trapezoidal reinforcing ribs are symmetrically arranged on the outer surface of the water hammer piston cylinder, a supporting bottom plate is arranged below the water hammer piston cylinder, and the supporting bottom plate is welded to the trapezoidal reinforcing ribs.

[0028] As a preferred technical solution of the present invention, the model of the flow sensor is FS100, and the measurement range of the flow sensor is 10-100m 3 / h; the model of the pressure sensor is PS50; the measuring range of the pressure sensor is 0.5-2MPa; the volume of the buffer air cavity is 0.5m 3 .

[0029] As a preferred technical solution of the present invention, the model of the exhaust valve is EV20; the working pressure is 1.6 MPa; the model of the pressure relief valve is RV08; the pressure relief range is 1.2-1.5 MPa.

[0030] As a preferred technical solution of the present invention, the material of the high-pressure sealing ring is nitrile rubber; the thickness of the high-pressure sealing ring is 5 mm; the material of the water hammer buffer plate is steel plate; the thickness of the water hammer buffer plate is 10 mm; the material of the pipe circular frame is carbon steel, and the material of the trapezoidal reinforcement rib is steel plate.

[0031] A pipeline leakage detection system for mine pipeline transportation comprises a sensor module, wherein the sensor module is connected to a data acquisition module circuit, wherein the sensor module comprises a pressure sensor and a flow sensor, which are respectively installed at different positions of a pipeline to monitor the pressure, flow and acoustic wave signal of the pipeline in real time, wherein the data acquisition module transmits the data to a data processing module, wherein the data processing module analyzes and processes the collected data, and establishes a prediction model for pipeline leakage by adopting an algorithm based on machine learning; by comparing the real-time monitoring data with the prediction model, it is determined whether the pipeline is leaking, and the leakage position and leakage amount are determined; the data processing module is connected to an alarm module, and when the alarm module detects a pipeline leakage, an acoustic and optical alarm signal is issued; the data processing module is connected to a data analysis and storage module, which stores and deeply analyzes various types of collected detection data for a long time, establishes a historical database, and traces and summarizes the laws and trends of pipeline leakage; the alarm module is connected to an emergency processing module, and when the emergency processing module detects a leakage, preset emergency measures are automatically started, such as closing relevant valves and starting spare pipelines, so as to reduce leakage losses.

[0032] As a preferred technical solution of the present invention, the data acquisition module includes a signal conversion unit and a data preprocessing unit; the signal conversion unit converts the analog signal output by the sensor into a digital signal;

[0033] The data preprocessing unit performs preliminary filtering and noise reduction on the collected raw data to improve data quality; the data analysis storage module includes a data storage unit and a data analysis unit; the data storage unit has a large-capacity storage device to store long-term detection data; the data analysis unit uses data analysis tools and algorithms to mine patterns and trends in the data.

[0034] As a preferred technical solution of the present invention, the data processing module includes a model training unit, a real-time analysis unit and a leakage positioning calculation unit; the model training unit uses historical data to train and optimize the machine learning model; the real-time analysis unit compares the real-time monitoring data with the prediction model to determine whether there is a leak; the leakage positioning calculation unit calculates the leakage position and leakage amount based on multi-sensor data and algorithms; the emergency processing module includes a valve control unit and a backup pipeline starting unit; the valve control unit: quickly closes the valve of the relevant leaking pipeline; the backup pipeline starting unit: promptly starts the backup pipeline to ensure normal transportation.

[0035] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of the present invention, the buffer system composed of the water hammer buffer plate, the water hammer buffer piston rod, the water hammer buffer damping spring and the water hammer piston cylinder can reduce the impact of the water hammer effect on the pipeline. The pipe loop frame in the diversion loop is used to support and guide the fluid, the flow sensor and the pressure sensor monitor the flow and pressure in the pipeline, and the data is transmitted and controlled through the wireless micro-control sensor. The fan-shaped shunt buffer box and the shunt connecting pipe realize the shunt of the fluid;

[0036] The leakage location calculation unit in the data processing module can accurately calculate the leakage location and leakage amount based on multi-sensor data, provide precise guidance for subsequent maintenance and treatment, and reduce troubleshooting time and costs. The data analysis and storage module can conduct in-depth analysis of long-term detection data, establish a historical database, trace and summarize pipeline leakage patterns and trends, provide data support for pipeline maintenance and optimization, and help formulate more scientific pipeline management strategies.

[0037] When a leak is detected, the emergency handling module can automatically initiate preset emergency measures, such as quickly closing relevant valves and promptly starting backup pipelines, to minimize leakage losses, ensure the normal operation of mine pipeline transportation, and reduce economic losses caused by production interruptions.

[0038] The signal conversion unit and data preprocessing unit in the data acquisition module can accurately convert analog signals into digital signals, filter and reduce noise on the original data, improve the accuracy and reliability of the data, and provide a high-quality data basis for subsequent analysis and judgment. Through accurate monitoring and timely processing of pipeline leakage, it can reduce the waste of resources caused by leakage and improve the efficiency and utilization of mine resource transportation;

[0039] The high-pressure sealing ring on the flange connection plate ensures a tight seal at the connection point, reducing the risk of leakage; the pipe connection frame provides stable support, making the material or fluid transportation more stable. The curved arc pipe fittings are more flexible in changing the direction of the pipeline, and the exhaust valve can effectively discharge the gas in the pipeline to prevent gas accumulation from affecting the transportation efficiency and causing safety hazards. The pressure relief valve can release pressure in time when the pipeline pressure is too high, protecting the pipeline and related equipment from damage caused by excessive pressure, and improving the safety of the system.

[0040] The water hammer buffer system can significantly reduce the impact of the water hammer effect on the pipeline, extend the service life of the pipeline, and reduce maintenance costs. The flow sensor and pressure sensor can accurately monitor the flow and pressure in the pipeline in real time, and transmit and control data through wireless micro-control sensors, realizing accurate monitoring and regulation of the transportation process. The fan-shaped shunt buffer box and shunt connecting pipe can evenly shunt the fluid to each shunt pipe, ensuring the uniformity of flow distribution and improving the transportation efficiency.

[0041] The trapezoidal reinforcement ribs on the outer surface of the water hammer piston cylinder enhance its structural strength and improve the reliability and stability of the device; the support base provides a stable support for the entire device. Through the reasonable setting of the parameters of each component, such as the angle range of the curved arc pipe, the angle range of the arc groove, the fan-shaped expansion angle of the fan-shaped diversion buffer box, etc., the device can adapt to different mining transportation conditions and requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of the structure provided by the present invention;

[0043] Figure 2 A schematic diagram of the structure of the guide loop pipe provided by the present invention;

[0044] Figure 3 A schematic diagram of the structure of the pipeline frame provided by the present invention;

[0045] Figure 4 A schematic diagram of the connecting pipe structure provided by the present invention;

[0046] Figure 5 A schematic diagram of the structure of an L-shaped spring baffle provided by the present invention;

[0047] Figure 6 A schematic diagram of the structure of the fan-shaped flow diversion buffer box provided by the present invention;

[0048] Figure 7 This is a system logic block diagram provided by the present invention.

[0049] Indicated in the figure:

[0050] 1. Main pipeline; 2. Pipe connecting frame; 3. Connecting pipe; 301. High-pressure sealing ring of flange connecting plate; 302. Wear-resistant lining; 4. Bending arc pipe fittings; 5. Exhaust valve; 6. Pressure relief valve; 7. Water hammer buffer plate; 701. Water hammer buffer piston rod; 702. Water hammer piston cylinder; 703. L-shaped spring baffle; 704. Water hammer buffer damping spring; 705. Buffer air cavity; 8. Trapezoidal reinforcement ribs; 9. Support bottom plate; 10. Flow guide roundabout pipe; 11. Pipe roundabout frame; 1101. Roundabout frame groove; 1102. Connecting side plate; 1103. Arc groove; 12. Flow sensor; 13. Pressure sensor; 14. Wireless micro-control sensor; 15. Diversion connecting flange; 16. Fan-shaped diversion buffer box; 1601. Diversion connecting pipe; 1602. Diversion pipe. 17. Sensor module; 18. Data acquisition module; 19. Data processing module; 20. Alarm module; 21. Emergency processing module. DETAILED DESCRIPTION

[0051] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0052] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features and technical solutions in the embodiments can be combined with each other without conflict. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0053] Example 1: Please refer to Figure 1-Figure 7 A mining pipeline transportation device comprises a main pipeline 1, a pipeline connecting frame 2 is arranged on the main pipeline 1, the main pipeline 1 is connected with a connecting pipe 3, a flange connecting plate is arranged on the connecting pipe 3, a high-pressure sealing ring is arranged on the flange connecting plate, a wear-resistant lining 302 is arranged on the inner ring of the high-pressure sealing ring, and a curved arc pipe fitting 4 is arranged in the middle of the connecting pipe 3.

[0054] The angle range of the curved arc tube 4 is α, and the range of α is 62°<α<93°;

[0055] The effect of the angle α of the curved pipe 4 on the fluid flow is expressed by the formula for calculating the flow velocity through α:

[0056]

[0057] Where: P1 and P2 are the pressures at both ends of the pipeline;

[0058] ρ is the fluid density;

[0059] α1 and α2 are the inner and outer radii of the pipe; α1 and α2 range between 62° and 93°;

[0060] δ is the friction factor;

[0061] D is the pipe diameter;

[0062] The angle α of the curved pipe member 4 affects the fluid flow. The formula for calculating the flow velocity through α can be used to effectively calculate the flow velocity in the pipeline.

[0063] An exhaust valve 5 and a pressure relief valve 6 are provided on the curved arc pipe fitting 4; a water hammer buffer plate 7 is provided at the lower part of the curved arc pipe fitting 4, a water hammer buffer piston rod 701 is provided below the water hammer buffer plate 7, the water hammer buffer piston rod 701 is sleeved inside the water hammer piston cylinder 702, an L-shaped spring baffle 703 is provided on the middle outer surface of the water hammer buffer piston rod 701, a water hammer buffer damping spring 704 is provided below the L-shaped spring baffle 703, the other end of the water hammer buffer damping spring 704 is connected to the bottom of the water hammer piston cylinder 702, and the impact fluctuation pressure formula of the water hammer on the water hammer piston cylinder 702 is:

[0064]

[0065] Where: P is pressure;

[0066] X is the position along the pipe;

[0067] t is time;

[0068] ρ is the fluid density;

[0069] k is the bulk modulus of the fluid;

[0070] The pressure of the impact fluctuation can be effectively calculated by the impact fluctuation pressure formula of the water hammer on the water hammer piston cylinder 702.

[0071] A buffer air chamber 705 is provided below the water hammer piston cylinder 702; a guide loop pipe 10 is provided on the main pipeline 1, a pipeline loop frame 11 is provided inside the guide loop pipe 10, a loop frame groove 1101 is provided on the pipeline loop frame 11, a connecting side plate 1102 is provided on the pipeline loop frame 11, an arc groove 1103 is provided on the connecting side plate 1102, the angle of the arc groove 1103 is β, and the range of β is 32°<β<64°, a flow sensor 12 is provided inside the arc groove 1103, a pressure sensor 13 is provided on the inner side of the main pipeline 1, and the flow sensor 12 and the pressure sensor 13 are wirelessly connected to the wireless micro-control sensor 14.

[0072] The pipeline circular frame 11 is connected to the diversion connection flange 15 , and a fan-shaped diversion buffer box 16 is arranged at the rear side of the diversion connection flange 15 . A diversion connection pipe 1601 is arranged at the end of the fan-shaped diversion buffer box 16 , and the diversion connection pipe 1601 is connected to the diversion pipe 1602 .

[0073] The fan-shaped expansion angle of the fan-shaped shunt buffer box 16 is θ, and the range of θ is 45°<β<75°. There are four shunt connecting pipes 1601 and 4 shunt pipes 1602 , which are evenly distributed on the fan-shaped end surface of the fan-shaped shunt buffer box 16 .

[0074] Four trapezoidal reinforcing ribs 8 are symmetrically arranged on the outer surface of the water hammer piston cylinder 702 . A supporting bottom plate 9 is arranged below the water hammer piston cylinder 702 . The supporting bottom plate 9 is welded to the trapezoidal reinforcing ribs 8 .

[0075] The model of flow sensor 12 is FS100, and the measurement range of flow sensor 12 is 10-100m 3 / h; the model of the pressure sensor 13 is PS50; the measuring range of the pressure sensor 13 is 0.5-2MPa; the volume of the buffer air cavity 705 is 0.5m 3 .

[0076] The model of the exhaust valve 5 is EV20; the working pressure is 1.6MPa; the model of the pressure relief valve 6 is RV08; the pressure relief range is 1.2-1.5MPa.

[0077] The material of the high-pressure sealing ring is nitrile rubber; the thickness of the high-pressure sealing ring is 5 mm; the material of the water hammer buffer plate 7 is steel plate; the thickness of the water hammer buffer plate 7 is 10 mm. The material of the pipeline round frame 11 is carbon steel, and the material of the trapezoidal reinforcement rib 8 is steel plate.

[0078] Working principle of the mine pipeline conveying device: The mine pipeline conveying device conveys materials or fluids through the main pipeline 1, and the connecting pipe 3 is used to connect with other pipelines or equipment. The flange connection plate and the high-pressure sealing ring ensure the sealing of the connection. The curved arc pipe fitting 4 can change the direction of the pipeline, the exhaust valve 5 is used to discharge the gas in the pipeline, and the pressure relief valve 6 is used to release excessive pressure. The buffer system composed of the water hammer buffer plate 7, the water hammer buffer piston rod 701, the water hammer buffer damping spring 704 and the water hammer piston cylinder 702 can reduce the impact of the water hammer effect on the pipeline. The pipe loop frame 11 in the guide loop pipe 10 is used to support and guide the fluid, and the flow sensor 12 and the pressure sensor 13 monitor the flow and pressure in the pipeline, and transmit and control the data through the wireless micro-control sensor 14. The fan-shaped diversion buffer box 16 and the diversion connecting pipe 1601 realize the diversion of the fluid.

[0079] Workflow: Materials or fluids enter from the main pipeline 1 and are supported by the pipeline connection frame 2 to maintain stable transportation. When the fluid passes through the connection pipe 3, the high-pressure sealing ring and the wear-resistant lining 302 ensure the sealing and wear-resistant performance of the connection part. When the fluid passes through the curved arc pipe fitting 4, if there is gas in the pipeline, it can be discharged through the exhaust valve 5; when the pressure exceeds the set range, the pressure relief valve 6 opens to release the pressure. The water hammer impact that may be generated at the curved arc pipe fitting 4 is borne by the water hammer buffer plate 7, the water hammer buffer piston rod 701 moves in the water hammer piston cylinder 702, and the L-shaped spring baffle 703 compresses the water hammer buffer damping spring 704, thereby consuming the impact energy, and the buffer air cavity 705 below also plays a certain buffering role. At the guide return pipe 10 of the main pipeline 1, the pipeline return frame 11 guides the fluid flow, the flow sensor 12 and the pressure sensor 13 monitor the flow and pressure respectively, and transmit the data wirelessly to the wireless micro-control sensor 14. The fluid enters the fan-shaped flow distribution buffer box 16 and is evenly distributed to each flow distribution pipe 1602 through the flow distribution connecting pipe 1601. The trapezoidal reinforcement ribs 8 on the outer surface of the water hammer piston cylinder 702 enhance the structural strength of the cylinder, and the support bottom plate 9 provides stable support.

[0080] Embodiment 2: A pipeline leakage detection system for mine pipeline transportation, including a sensor module 17, the sensor module 17 is connected to a data acquisition module 18 by circuit, the sensor module 17: includes a pressure sensor 13 and a flow sensor 12, which are respectively installed at different positions of the pipeline to monitor the pressure, flow and acoustic wave signal of the pipeline in real time, the data acquisition module 18 transmits the data to a data processing module 19, the data processing module 19: analyzes and processes the collected data, adopts an algorithm based on machine learning, and establishes a prediction model for pipeline leakage; by comparing the real-time monitoring data with the prediction model, it is determined whether the pipeline is leaking, and the leakage location and leakage amount are determined;

[0081] The data processing module 19 is connected to the alarm module 20. When the alarm module 20 detects a pipeline leak, it sends out an audible and visual alarm signal; the data processing module 19 is connected to the data analysis and storage module: the data analysis and storage module stores and deeply analyzes various types of collected detection data for a long time, establishes a historical database, and traces and summarizes the laws and trends of pipeline leakage; the alarm module 20 is connected to the emergency processing module 21: when the emergency processing module 21 detects a leak, it automatically starts the preset emergency measures, such as closing the relevant valves and starting the spare pipeline to reduce leakage losses.

[0082] The data acquisition module 18 includes a signal conversion unit and a data preprocessing unit; the signal conversion unit converts the analog signal output by the sensor into a digital signal; the data preprocessing unit performs preliminary filtering and noise reduction on the collected raw data to improve the data quality;

[0083] The data analysis and storage module includes a data storage unit and a data analysis unit; the data storage unit is equipped with a large-capacity storage device to store long-term detection data; the data analysis unit uses data analysis tools and algorithms to mine patterns and trends in the data.

[0084] The data processing module 19 includes a model training unit, a real-time analysis unit and a leakage location calculation unit; the model training unit uses historical data to train and optimize the machine learning model; the real-time analysis unit compares the real-time monitoring data with the prediction model to determine whether there is a leakage; the leakage location calculation unit calculates the leakage position and leakage amount based on multi-sensor data and algorithms.

[0085] The emergency processing module 21 includes a valve control unit and a backup pipeline starting unit; the valve control unit: quickly closes the valve of the relevant leaking pipeline; the backup pipeline starting unit: promptly starts the backup pipeline to ensure normal transportation.

[0086] Through real-time monitoring of different positions of the pipeline by the pressure sensor 13 and the flow sensor 12, key parameters of pipeline operation can be obtained in time. Once a leak occurs, the alarm module 20 can quickly send out an audible and visual alarm signal to ensure that relevant personnel are informed of the situation at the first time.

[0087] The leakage location calculation unit in the data processing module 19 can accurately calculate the leakage location and leakage amount based on multi-sensor data and algorithms, provide precise guidance for subsequent maintenance and treatment, and reduce the time and cost of investigation. The prediction model is established based on machine learning algorithms, which can predict the leakage before it actually occurs, take measures in advance, and effectively reduce the probability of leakage accidents. The data analysis and storage module can conduct in-depth analysis of long-term detection data, establish a historical database, trace and summarize pipeline leakage patterns and trends, provide data support for pipeline maintenance and optimization, and help formulate more scientific pipeline management strategies.

[0088] When a leak is detected, the emergency processing module 21 can automatically start the preset emergency measures, such as quickly closing the relevant valves and starting the spare pipeline in time, to minimize the leakage loss, ensure the normal operation of the mine pipeline transportation, and reduce the economic losses caused by production interruption. The signal conversion unit and data preprocessing unit in the data acquisition module 18 can accurately convert the analog signal into a digital signal, and filter and reduce the noise of the original data to improve the accuracy and reliability of the data, and provide a high-quality data basis for subsequent analysis and judgment. Through accurate monitoring and timely processing of pipeline leaks, it is possible to reduce the waste of resources caused by leaks and improve the efficiency and utilization of mine resource transportation.

[0089] Enhanced safety assurance Timely detection and treatment of pipeline leaks reduces safety risks caused by leaks, such as fire, explosion, and environmental pollution, and ensures the life safety of mine workers and production safety of mines

[0090] Working principle of the mine pipeline transmission pipeline leakage detection system: The system collects the pressure, flow and acoustic wave signals of the pipeline in real time through the pressure sensor 13 and the flow sensor 12. The signal conversion unit in the data acquisition module 18 converts the analog signal into a digital signal, and the data preprocessing unit filters and reduces the noise of the digital signal. The processed data is transmitted to the data processing module 19, the model training unit uses historical data to train the machine learning model, and the real-time analysis unit compares the real-time monitoring data with the prediction model to determine whether there is a leak. The leakage positioning calculation unit calculates the leakage position and leakage amount based on multi-sensor data and specific algorithms. If it is judged to be a leak, the alarm module 20 sends an audible and visual alarm signal, and the valve control unit in the emergency processing module 21 closes the relevant valves, and the standby pipeline startup unit starts the standby pipeline. The data analysis and storage module stores and deeply analyzes the detection data for a long time, and establishes a historical database to trace and summarize the laws and trends of pipeline leakage.

[0091] Working process: The pressure sensor 13 and the flow sensor 12 in the sensor module 17 monitor the state of the pipeline in real time and generate analog signals.

[0092] The signal conversion unit of the data acquisition module 18 converts the analog signal into a digital signal, and the data preprocessing unit performs preliminary processing such as filtering and noise reduction. The processed data is transmitted to the data processing module 19.

[0093] The data processing module 19 calculates the leakage position based on the pressure wave propagation speed and the time difference when the sensor detects the pressure change:

[0094] L_leak=(v*Δt) / 2

[0095] Among them, L_leak is the distance between the leakage location and a certain sensor, v is the propagation speed of the pressure wave in the pipeline, and Δt is the time difference between the two sensors detecting the pressure change.

[0096] The model training unit uses historical data to train the machine learning model in advance, and the real-time analysis unit compares the real-time data with the model to determine whether there is a leak. If there is a leak, the leak location calculation unit calculates the leak location and leak amount.

[0097] The angle range of the curved arc tube 4 is α, and the range of α is 62°<α<93°;

[0098] The effect of the angle α of the curved pipe 4 on the fluid flow is expressed by the formula for calculating the flow velocity through α:

[0099]

[0100] Where: P1 and P2 are the pressures at both ends of the pipeline;

[0101] ρ is the fluid density;

[0102] α1 and α2 are the inner and outer radii of the pipe; α1 and α2 range between 62° and 93°;

[0103] δ is the friction factor;

[0104] D is the pipe diameter;

[0105] An exhaust valve 5 and a pressure relief valve 6 are provided on the curved arc pipe fitting 4; a water hammer buffer plate 7 is provided at the lower part of the curved arc pipe fitting 4, a water hammer buffer piston rod 701 is provided below the water hammer buffer plate 7, the water hammer buffer piston rod 701 is sleeved inside the water hammer piston cylinder 702, an L-shaped spring baffle 703 is provided on the middle outer surface of the water hammer buffer piston rod 701, a water hammer buffer damping spring 704 is provided below the L-shaped spring baffle 703, the other end of the water hammer buffer damping spring 704 is connected to the bottom of the water hammer piston cylinder 702, and the impact fluctuation pressure formula of the water hammer on the water hammer piston cylinder 702 is:

[0106]

[0107] Where: P is pressure;

[0108] X is the position along the pipe;

[0109] t is time;

[0110] ρ is the fluid density;

[0111] k is the bulk modulus of the fluid;

[0112] If it is judged to be a leak, the data processing module 19 sends a signal to the alarm module 20, which issues an audible and visual alarm. The alarm module 20 also transmits a signal to the emergency processing module 21, and the valve control unit closes the relevant valves, and the backup pipeline start-up unit starts the backup pipeline. The data analysis and storage module continuously receives and stores the detection data, and the data analysis unit analyzes and mines the rules and trends.

[0113] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A mine pipeline transportation device, comprising a main pipeline (1), wherein a pipeline connecting frame (2) is arranged on the main pipeline (1), characterized in that: The main pipeline (1) is connected to a connecting pipe (3), a flange connecting plate is provided on the connecting pipe (3), a high-pressure sealing ring is provided on the flange connecting plate, a wear-resistant lining (302) is provided on the inner ring of the high-pressure sealing ring, and a curved arc pipe fitting (4) is provided in the middle of the connecting pipe (3); The angle range of the curved arc-shaped pipe (4) is α, and the range of α is 62°<α<93°; The effect of the angle α of the curved pipe (4) on the fluid flow is expressed by the formula for calculating the flow velocity through α: Where: P1 and P2 are the pressures at both ends of the pipeline; ρ is the fluid density; α1 and α2 are the inner and outer radii of the pipe; α1 and α2 range between 62° and 93°; δ is the friction factor; D is the pipe diameter; The curved arc-shaped pipe fitting (4) is provided with an exhaust valve (5) and a pressure relief valve (6); a water hammer buffer plate (7) is provided at the lower part of the curved arc-shaped pipe fitting (4); a water hammer buffer piston rod (701) is provided below the water hammer buffer plate (7); the water hammer buffer piston rod (701) is sleeved inside the water hammer piston cylinder (702); an L-shaped spring stopper (703) is provided on the middle outer surface of the water hammer buffer piston rod (701); a water hammer buffer damping spring (704) is provided below the L-shaped spring stopper (703); the other end of the water hammer buffer damping spring (704) is connected to the bottom of the water hammer piston cylinder (702); and a buffer air chamber (705) is provided below the water hammer piston cylinder (702); The impact pressure formula of water hammer on water hammer piston cylinder (702) is: Where: P is pressure; X is the position along the pipe; t is time; ρ is the fluid density; k is the bulk modulus of the fluid; The main pipeline (1) is provided with a flow guiding loop pipe (10), a pipeline loop frame (11) is provided inside the flow guiding loop pipe (10), a loop frame groove (1101) is provided on the pipeline loop frame (11), a connecting side plate (1102) is provided on the pipeline loop frame (11), and an arc groove (1103) is provided on the connecting side plate (1102); The angle of the arc groove (1103) is β, and the range of β is 32°<β<64°; A flow sensor (12) is arranged in the arc-shaped groove (1103), a pressure sensor (13) is arranged on the inner side of the main pipeline (1), and the flow sensor (12) and the pressure sensor (13) are wirelessly connected to a wireless micro-control sensor (14).

2. A mining pipeline transportation device according to claim 1, characterized in that: The pipeline circular frame (11) is connected to the shunt connection flange (15), and a fan-shaped shunt buffer box (16) is arranged on the rear side of the shunt connection flange (15). A shunt connection pipe (1601) is arranged at the end of the fan-shaped shunt buffer box (16), and the shunt connection pipe (1601) is connected to the shunt pipe (1602).

3. A mining pipeline transportation device according to claim 2, characterized in that: The fan-shaped expansion angle of the fan-shaped flow shunt buffer box (16) is θ, and the range of θ is 45°<β<75°. Four flow shunt connecting pipes (1601) and four flow shunt pipes (1602) are provided and are evenly distributed on the fan-shaped end surface of the fan-shaped flow shunt buffer box (16).

4. A mining pipeline transportation device according to claim 3, characterized in that: Four trapezoidal reinforcing ribs (8) are symmetrically arranged on the outer surface of the water hammer piston cylinder (702), and a supporting bottom plate (9) is arranged below the water hammer piston cylinder (702), and the supporting bottom plate (9) is welded to the trapezoidal reinforcing ribs (8).

5. A mining pipeline transportation device according to claim 4, characterized in that: The model of the flow sensor (12) is FS100, and the measurement range of the flow sensor (12) is 10-100m 3 / h; the model of the pressure sensor (13) is PS50; the measuring range of the pressure sensor (13) is 0.5-2MPa; the volume of the buffer air cavity (705) is 0.5m 3 .

6. A mining pipeline transportation device according to claim 5, characterized in that: The model of the exhaust valve (5) is EV20; the working pressure is 1.6 MPa. The model of the pressure relief valve (6) is RV08; the pressure relief range is 1.2-1.5 MPa.

7. A mining pipeline transportation device according to claim 6, characterized in that: The material of the high-pressure sealing ring is nitrile rubber; the thickness of the high-pressure sealing ring is 5 mm; the material of the water hammer buffer plate (7) is steel plate; the thickness of the water hammer buffer plate (7) is 10 mm; the material of the pipeline circular frame (11) is carbon steel, and the material of the trapezoidal reinforcing rib (8) is steel plate.

8. A pipeline leakage detection system for mine pipeline transportation, comprising a sensor module (17), characterized in that: The sensor module (17) is connected to the data acquisition module (18) by circuit. The sensor module (17) comprises a pressure sensor (13) and a flow sensor (12), which are respectively installed at different positions of the pipeline to monitor the pressure, flow and acoustic wave signal of the pipeline. The measurement range of the pressure sensor (13) is 0-10MPa; the accuracy of the pressure sensor (13) is ±0.5%FS; the response time of the pressure sensor (13) is ≤10ms. The data acquisition module (18) transmits data to the data processing module (19). The measurement range of the flow sensor (12) is 0-1000m 3 / h; the data processing module (19) determines whether the pipeline is leaking and determines the leakage location by comparing the real-time monitoring data with the prediction model; the data processing module (19) is connected to the alarm module (20), and when the alarm module (20) detects a pipeline leakage, it sends an audible and visual alarm signal; the data processing module (19) is connected to the data analysis and storage module: the data analysis and storage module stores and deeply analyzes the collected various detection data for a long time, establishes a historical database, and traces and summarizes the pipeline leakage rules and trends; the alarm module (20) is connected to the emergency processing module (21): when the emergency processing module (21) detects a leakage, it automatically starts the preset emergency measures, and the preset emergency measures include closing the relevant valves and starting the spare pipeline.

9. A pipeline leakage detection system for mine pipeline transportation according to claim 8, characterized in that: The data acquisition module (18) comprises a signal conversion unit and a data preprocessing unit; the signal conversion unit converts the analog signal output by the sensor into a digital signal; the data preprocessing unit performs preliminary filtering and noise reduction processing on the collected raw data; and the emergency processing module (21) comprises a valve control unit and a standby pipeline starting unit.

10. A pipeline leakage detection system for mine pipeline transportation according to claim 9, characterized in that: The data processing module (19) comprises a model training unit, a real-time analysis unit and a leakage location calculation unit, wherein the model training unit uses historical data to train and optimize the machine learning model; the real-time analysis unit compares the real-time monitoring data with the prediction model; The leakage location calculation unit calculates the leakage location according to the multi-sensor data and algorithm; the formula for calculating the leakage location is: L_leak = (v*Δt) / 2; Among them, L_leak is the distance between the leakage location and a certain sensor, v is the propagation speed of the pressure wave in the pipeline, and Δt is the time difference between the two sensors detecting the pressure change.

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