Gas delivery conduit with dual drag reduction system and method of use

Abstract

The present application relates to a kind of gas delivery pipeline with double drag reduction system, including delivery pipeline, V-shaped drag reduction device, flow rate sensor, display and detection circuit, delivery pipeline and V-shaped drag reduction device are the tubular structure of rectangular axial section, delivery pipeline is coated in V-shaped drag reduction device outside and is coaxially distributed with V-shaped drag reduction device, flow rate sensor at least one, is embedded in V-shaped drag reduction device inside surface and is electrically connected with detection circuit by wire.Its use method includes pipeline assembly, gas delivery and strengthening drag reduction and so on three steps.The present application can effectively meet the need of long-distance conveying operation of a variety of different types of gas medium and external working environment greatly improve the scope of application;And effectively reduce the friction between gas flow and the pipe wall in the process of gas medium conveying, thereby effectively reduce the energy loss caused by friction when gas medium is conveyed.

Description

Technical Field

[0001] This invention relates to a gas conveying pipeline with a dual drag reduction system, belonging to the technical field of gas conveying equipment. Background Technology

[0002] Pipelines are crucial equipment for transporting gaseous media such as natural gas. However, in actual gas transport operations, the friction between the gas flow and the inner wall of the pipeline is high near the center, leading to significant energy loss during transport. Furthermore, the difference in friction between the inner and outer parts of the gas flow creates vortices near the inner wall of the pipeline, acting in the opposite direction to the gas flow. These vortices further increase the resistance to the gas flow and significantly affect the stability of the gas flow direction. This results in high energy consumption and low transport efficiency. Additionally, the poor airflow stability during transport can cause significant mechanical vibration and noise, severely impacting the operational stability of the gas transport equipment.

[0003] Therefore, in view of this situation, there is an urgent need to develop a brand-new gas medium transportation pipeline equipment to meet the needs of actual use. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a gas transmission pipeline with a dual drag reduction system to overcome the above defects and meet the needs of actual equipment operation.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A gas delivery pipeline with a dual drag reduction system includes a delivery pipeline, a V-shaped drag reduction device, a flow rate sensor, a display, and a detection circuit. Both the delivery pipeline and the V-shaped drag reduction device are tubular structures with a rectangular axial cross-section. The delivery pipeline covers the V-shaped drag reduction device and is coaxially distributed with it. At least one flow rate sensor is embedded in the inner side of the V-shaped drag reduction device and electrically connected to the detection circuit via a wire. The V-type drag reduction device includes a guide tube body, drag-reducing rings, and drag-reducing grooves. The guide tube body is a tubular structure coaxially distributed with the conveying pipe. The outer side of the guide tube body is slidably connected to the inner side of the conveying pipe. Several drag-reducing rings are evenly distributed on the inner wall of the guide tube body. Each drag-reducing ring is a closed ring structure coaxially distributed with the guide tube body. Each drag-reducing ring is evenly distributed along the axial direction of the guide tube body, and the distance between two adjacent drag-reducing rings is 0-5 mm. Each drag-reducing ring has an isosceles triangular cross-section. Several drag-reducing grooves are symmetrically distributed on the side surface of the drag-reducing ring. The drag-reducing grooves are embedded in the side surface of the drag-reducing ring. Each drag-reducing groove has a triangular cross-section. The groove wall of each groove near the apex of the drag-reducing ring is parallel to the axis of the guide tube body and perpendicular to the diameter direction of the drag-reducing ring. The side wall at the apex of the drag-reducing ring and the groove walls on both sides of the drag-reducing ring form a rhombus structure. The display and detection circuit are located outside the conveying pipe and connected to the outer side of the conveying pipe.

[0007] Furthermore, the conveying pipe and the V-shaped drag reduction device are respectively provided with pipe connection mechanisms at both ends. The pipe connection mechanism includes a connecting flange, elastic sealing rings, springs, a connecting column, and positioning bolts. The rear end face of the connecting flange is coaxially distributed with the connecting column. The connecting column is located in a tubular structure coaxially distributed with the connecting flange. The front end face of the connecting column is connected to the connecting flange, and the rear half is embedded in the conveying pipe, located between the conveying pipe and the V-shaped drag reduction device. The outer and inner sides of the connecting column abut against and are slidably connected to the conveying pipe and the V-shaped drag reduction device, respectively. At the same time, the connecting column is also connected to the conveying pipe through several positioning bolts. In addition, the inner and outer sides of the connecting column are provided with at least two elastic sealing rings evenly distributed along their axis, and are slidably connected to the conveying pipe and the V-shaped drag reduction device through the elastic sealing rings. At the same time, the outer side of the connecting column is provided with at least three springs evenly distributed around the axis of the connecting column, and the connecting column abuts against the inner side of the conveying pipe through the springs.

[0008] Furthermore, the spring is located between two adjacent elastic sealing rings, and the length of the connecting column between the conveying pipe and the V-shaped drag reduction device is not less than 60% of the total length of the connecting column. At the same time, the outer diameter of the connecting flange is at least 1.5 times the maximum outer diameter at the end face of the conveying pipe, and at least one disc spring is used to abut against the rear end face of the connecting flange and the end face of the conveying pipe and the V-shaped drag reduction device.

[0009] Furthermore, the guide tube body and the conveying pipe are slidably connected by an assembly mechanism, which includes a guide groove and a spring connecting plate. The guide groove is embedded in the inner side of the conveying pipe and distributed parallel to the axis of the conveying pipe. The elastic connecting plate is connected to the outer side of the guide tube body and distributed along the axis of the guide tube body. At the same time, the guide tube body is slidably connected to the guide groove through the spring connecting plate.

[0010] Furthermore, the spring connecting plate is a plate-like structure with a cross-section of any one of rectangular, fan-shaped, arc-shaped, or trapezoidal, and the spring connecting plate is distributed in a spiral structure around the axis of the conveying pipeline.

[0011] Furthermore, the apex angle of the drag-reducing ring is 15°–60°, the bottom angle of the drag-reducing groove is 30°–90°, and the depth of each drag-reducing groove is the same.

[0012] Furthermore, the V-shaped drag reduction device is provided with an auxiliary drag reduction mechanism, which includes a buffer tank, a booster pump, a guide pipe, an atomizing nozzle, a control valve, and a drag-reducing agent. The buffer tank is connected to the outer side of the delivery pipe through a connecting mechanism, and the drag-reducing agent is located inside the buffer tank. The buffer tank is connected to the booster pump through the guide pipe, and the booster pump is connected to at least one atomizing nozzle through the guide pipe. The atomizing nozzle is embedded in the wall of the guide pipe and is located between two adjacent drag-reducing rings. The axis of the atomizing nozzle is at an angle of 30° to 90° with the axis of the guide pipe. When there are two or more atomizing nozzles located between two adjacent drag-reducing rings, each atomizing nozzle is evenly distributed around the axis of the guide pipe. The guide pipe is connected to the booster pump and the buffer tank through a control valve, and the control valve and the booster pump are electrically connected to the detection circuit.

[0013] Furthermore, the flow rate sensor is located between two adjacent drag-reducing rings and is connected to the side surface of the drag-reducing rings.

[0014] Furthermore, the detection circuit is a circuit system based on an industrial microcontroller, and the detection circuit is also equipped with an auxiliary drive power supply based on a battery and a multi-channel voltage regulator circuit.

[0015] A method of using a gas delivery pipeline with a dual drag reduction system includes the following steps:

[0016] S1, Pipeline assembly: First, set the quantity and length of the conveying pipeline and V-type drag reduction device. Then, assemble the conveying pipeline, V-type drag reduction device, flow rate sensor, display and detection circuit to obtain several finished assembled pipelines. Then, connect the finished assembled pipelines with the pipeline connection mechanism to obtain the finished drag-reduced pipeline. Finally, electrically connect the detection circuit set at each conveying pipeline with the external control circuit and establish a data connection at the same time.

[0017] S2, Gas Conveying: The gas medium to be conveyed is pressurized by a pressurizing device and then conveyed into the finished product drag-reducing pipeline. The high-pressure gas is conveyed along the axis of the finished product drag-reducing pipeline. During the conveying process, the airflow in the middle of the pipeline is directly conveyed along the pipeline direction, while the high-pressure airflow at the pipeline wall comes into contact with the V-shaped drag-reducing device. The V-shaped drag-reducing device reduces the resistance between the airflow and the pipe wall of the finished product drag-reducing pipeline and conveys it along the axis of the finished product drag-reducing pipeline. During the conveying process, the flow rate sensor detects the airflow velocity and displays the detection results on one hand, through the display, and on the other hand, transmits them to the external control circuit to achieve the purpose of synchronous detection of the gas medium conveying velocity.

[0018] S3, Enhanced drag reduction: During gas transportation in step S2, the auxiliary drag reduction mechanism is driven to operate synchronously. While the gas medium is being transported, the drag-reducing agent set in the auxiliary drag reduction mechanism is pressurized to the same pressure as the gas medium and then sprayed into the finished product assembly pipeline. The sprayed drag-reducing agent flows along the finished product assembly pipeline under the drive of the airflow and is coated on the surface of the drag-reducing ring and drag-reducing groove of the V-shaped drag reduction device during the flow of the airflow, further reducing the resistance between the drag-reducing ring and drag-reducing groove and the gas medium.

[0019] The system structure of this invention is versatile and easy to assemble and set up, effectively meeting the needs of long-distance transportation of various types of gas media under different external working environments, greatly improving its applicability. On the other hand, the equipment effectively reduces the friction between the gas flow and the pipe wall during gas media transportation, thereby effectively reducing the energy loss caused by friction during gas media transportation, thus effectively improving the gas media transportation efficiency and reducing the energy consumption of gas media transportation operation. Attached Figure Description

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a partial cross-sectional view of the present invention without a pipe connection mechanism;

[0022] Figure 2 This is a partial cross-sectional structural diagram of the pipe connection mechanism of the present invention;

[0023] Figure 3This is a partial structural diagram of a V-shaped drag reduction device;

[0024] Figure 4 A schematic diagram of the overall airflow direction within the V-shaped drag reduction device;

[0025] Figure 5 This is a schematic diagram showing the flow direction of the vortex airflow between the drag-reducing rings;

[0026] Figure 6 This is a flowchart of the method of using the present invention. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] like Figure 1 As shown in Figure 5, a gas delivery pipeline with a dual drag reduction system includes a delivery pipeline 1, a V-shaped drag reduction device 2, a flow rate sensor 3, a display 4, and a detection circuit 5. Both the delivery pipeline 1 and the V-shaped drag reduction device 2 are tubular structures with a rectangular axial cross-section. The delivery pipeline 1 covers the V-shaped drag reduction device 2 and is coaxially distributed with the V-shaped drag reduction device 2. At least one flow rate sensor 3 is embedded in the inner side of the V-shaped drag reduction device 2 and is electrically connected to the detection circuit 5 through a wire.

[0029] In this embodiment, the V-shaped drag reduction device 2 includes a guide tube body 21, drag-reducing rings 22, and drag-reducing grooves 23. The guide tube body 21 is a tubular structure coaxially distributed with the conveying pipe 1. The outer side of the guide tube body 21 is slidably connected to the inner side of the conveying pipe 1. A plurality of drag-reducing rings 22 are evenly distributed on the inner wall of the guide tube body 21. Each drag-reducing ring 22 is a closed ring structure coaxially distributed with the guide tube body 21. Each drag-reducing ring 22 is evenly distributed along the axial direction of the guide tube body 21, and the distance between two adjacent drag-reducing rings 22 is 0-5 mm. The drag-reducing ring 22 has an isosceles triangle cross-section. The ring structure has several drag-reducing grooves 23 symmetrically distributed on the side surface of the drag-reducing ring 22. The drag-reducing grooves 23 are embedded in the side surface of the drag-reducing ring 22. The drag-reducing grooves 23 are groove-shaped structures with a triangular cross section. The groove wall of each drag-reducing groove 23 on the side near the vertex of the drag-reducing ring 22 is distributed parallel to the axis of the guide tube body 21 and perpendicular to the diameter direction of the drag-reducing ring 22. The side wall at the vertex of the drag-reducing ring 22 and the groove walls of the drag-reducing grooves 23 located on both sides of the drag-reducing ring form a rhombus structure. The display 4 and the detection circuit 5 are both located outside the conveying pipe 1 and connected to the outer side of the conveying pipe 1.

[0030] It is important to note that pipe connection mechanisms 6 are respectively provided at both ends of the conveying pipe 1 and the V-shaped drag reduction device 2. Each pipe connection mechanism 6 includes a connecting flange 61, an elastic sealing ring 62, a spring 63, a connecting column 64, and positioning bolts 65. The rear end face of the connecting flange 61 is coaxially distributed with the connecting column 64. The connecting column 64 is located in a tubular structure coaxially distributed with the connecting flange 61. The front end face of the connecting column 64 is connected to the connecting flange 61, and the rear half is embedded in the conveying pipe 1, located between the conveying pipe 1 and the V-shaped drag reduction device 2. The side and inner sides of the connecting column 64 are respectively abutted against and slidably connected to the conveying pipe 1 and the V-shaped drag reduction device 2. At the same time, the connecting column 64 is also connected to the conveying pipe 1 through several positioning bolts 65. In addition, the inner and outer sides of the connecting column 64 are provided with at least two elastic sealing rings 62 evenly distributed along its axis, and are slidably connected to the conveying pipe 1 and the V-shaped drag reduction device 2 through the elastic sealing rings 62. At the same time, the outer side of the connecting column 64 is provided with at least three spring pieces 63 evenly distributed around the axis of the connecting column, and the connecting column 64 abuts against the inner side of the conveying pipe 1 through the spring pieces 63.

[0031] The spring piece 63 is located between two adjacent elastic sealing rings 62. The length of the connecting column 64 located between the conveying pipe 1 and the V-shaped drag reduction device 2 is not less than 60% of the total length of the connecting column 64. The outer diameter of the connecting flange 61 is at least 1.5 times the maximum outer diameter of the end face of the conveying pipe 1. At the same time, the rear end face of the connecting flange 61 is further abutted against the end face of the conveying pipe 1 and the V-shaped drag reduction device 2 by at least one disc spring.

[0032] With the connection mechanism in place, when multiple pipelines need to be assembled and the gas delivery distance needs to be adjusted during gas transportation, the pipelines are connected to each other through the connection mechanism. The connection mechanism can be used directly to achieve the need for interconnection and assembly between pipelines.

[0033] Meanwhile, when the connecting mechanism is connected and assembled with the conveying pipeline and the V-type drag reduction device, the length of the connection surface with the conveying pipeline and the V-type drag reduction device is increased by setting the connecting column, thereby improving the stability of the connection structure. At the same time, the sealing performance between the connecting mechanism and the conveying pipeline and the V-type drag reduction device can be improved by setting the elastic sealing ring. In addition, the elastic deformation capability of the connecting structure components of the connecting mechanism and the conveying pipeline and the V-type drag reduction device is effectively improved by setting the spring and disc spring. This reduces the impact and vibration of the pipeline during airflow and also overcomes the risk of pipeline leakage caused by thermal expansion and contraction during pipeline operation.

[0034] It should be noted that the guide tube body 21 and the conveying pipe 1 are slidably connected by an assembly mechanism 7. The assembly mechanism 7 includes a guide groove 71 and a spring connecting plate 72. Several guide grooves 71 are embedded in the inner side of the conveying pipe 1 and distributed parallel to the axis of the conveying pipe 1. Several elastic connecting plates 72 are connected to the outer side of the guide tube body 21 and distributed along the axis of the guide tube body 21. At the same time, the guide tube body 21 is slidably connected to the guide grooves 71 through the spring connecting plates 72.

[0035] In a further optimized configuration, the spring connecting plate 72 is a plate-like structure with a cross-section of any one of rectangular, fan-shaped, arc-shaped, or trapezoidal, and the spring connecting plate 72 is distributed in a spiral structure around the axis of the conveying pipe 1.

[0036] The assembly mechanism effectively improves the ease of connection and assembly between the conveying pipeline and the V-type drag reduction device, and reduces the difficulty of assembly operation and equipment maintenance. At the same time, during operation, the spring connecting plate can effectively reduce the mechanical vibration generated during gas conveying, improve the stability of gas conveying operation, and reduce the noise generated during gas conveying.

[0037] It should be noted that the apex angle of the drag-reducing ring 22 is 15°–60°, the bottom angle of the drag-reducing groove 23 is 30°–90°, and the depth of each drag-reducing groove 23 is the same.

[0038] Specifically, the V-shaped drag reduction device 2 is further provided with an auxiliary drag reduction mechanism 8, which includes a buffer tank 81, a booster pump 82, a guide pipe 83, an atomizing nozzle 84, a control valve 85, and a drag-reducing agent. The buffer tank 81 is connected to the outer side of the delivery pipe 1 via a connecting mechanism, and the drag-reducing agent is located inside the buffer tank 81. The buffer tank 81 is connected to the booster pump 82 via the guide pipe 83, and the booster pump 82 is further connected to at least one atomizing nozzle 84 via the guide pipe 83. The atomizing nozzle 84 is embedded in the wall of the guide tube 21 and is located between two adjacent drag-reducing rings 22. The axis of the atomizing nozzle 84 is at an angle of 30° to 90° with the axis of the guide tube 22. When there are two or more atomizing nozzles 84 located between two adjacent drag-reducing rings 22, each atomizing nozzle 84 is evenly distributed around the axis of the guide tube 21. The guide tube 83 is connected to the booster pump 82 and the buffer tank 81 through the control valve 85. The control valve 85 and the booster pump 82 are both electrically connected to the detection circuit 5.

[0039] By using an auxiliary drag-reducing mechanism, drag-reducing agent is sprayed into the gas flow during gas transportation. The drag-reducing agent flows with the gas flow and is coated on the surface of the V-shaped drag-reducing device, thereby further reducing the resistance between the gas flow and the pipe wall during operation.

[0040] In this embodiment, the flow rate sensor 3 is located between two adjacent drag-reducing rings 22 and is connected to the side surface of the drag-reducing ring 22.

[0041] In this embodiment, the detection circuit 5 is a circuit system based on an industrial microcontroller, and the detection circuit is further equipped with an auxiliary drive power supply based on a battery and a multi-channel voltage regulator circuit.

[0042] like Figure 6 As shown, a method of using a gas transmission pipeline with a dual drag reduction system includes the following steps:

[0043] S1, Pipeline assembly: First, set the quantity and length of the conveying pipeline and V-type drag reduction device. Then, assemble the conveying pipeline, V-type drag reduction device, flow rate sensor, display and detection circuit to obtain several finished assembled pipelines. Then, connect the finished assembled pipelines with the pipeline connection mechanism to obtain the finished drag-reduced pipeline. Finally, electrically connect the detection circuit set at each conveying pipeline with the external control circuit and establish a data connection at the same time.

[0044] S2, Gas Conveying: The gas medium to be conveyed is pressurized by a pressurizing device and then conveyed into the finished product drag-reducing pipeline. The high-pressure gas is conveyed along the axis of the finished product drag-reducing pipeline. During the conveying process, the airflow in the middle of the pipeline is directly conveyed along the pipeline direction, while the high-pressure airflow at the pipeline wall comes into contact with the V-shaped drag-reducing device. The V-shaped drag-reducing device reduces the resistance between the airflow and the pipe wall of the finished product drag-reducing pipeline and conveys it along the axis of the finished product drag-reducing pipeline. During the conveying process, the flow rate sensor detects the airflow velocity and displays the detection results on one hand, through the display, and on the other hand, transmits them to the external control circuit to achieve the purpose of synchronous detection of the gas medium conveying velocity.

[0045] S3, Enhanced drag reduction: During gas transportation in step S2, the auxiliary drag reduction mechanism is driven to operate synchronously. While the gas medium is being transported, the drag-reducing agent set in the auxiliary drag reduction mechanism is pressurized to the same pressure as the gas medium and then sprayed into the finished product assembly pipeline. The sprayed drag-reducing agent flows along the finished product assembly pipeline under the drive of the airflow and is coated on the surface of the drag-reducing ring and drag-reducing groove of the V-shaped drag reduction device during the flow of the airflow, further reducing the resistance between the drag-reducing ring and drag-reducing groove and the gas medium.

[0046] During operation, the airflow in the finished product assembly pipeline flows along the axis of the pipeline. During this flow, the airflow in contact with the top of the drag-reducing ring of the V-shaped drag-reducing device experiences greater friction than the airflow not in contact with the drag-reducing ring. This causes the airflow velocity in contact with the drag-reducing ring to decrease, forming a vortex between adjacent drag-reducing rings. The vortex rotates in the same direction as the airflow, allowing the airflow near the drag-reducing ring in the remaining gas to come into contact with the rotating vortex airflow. By utilizing the contact between the vortex airflow and the horizontal airflow, the horizontal airflow is prevented from contacting the pipe wall of the finished product assembly pipeline, thereby reducing the frictional resistance between the horizontal airflow and the pipe wall of the finished product assembly pipeline.

[0047] Meanwhile, when the vortex airflow between two adjacent drag-reducing rings is in motion, it passes through the drag-reducing grooves set on the sidewall of the drag-reducing ring. This causes the vortex airflow to form several vortices in the drag-reducing grooves as it flows along the sidewall of the drag-reducing ring. The vortices in the drag-reducing grooves are used to reduce the resistance between the vortex airflow between the two adjacent drag-reducing rings and the side surface of the drag-reducing grooves, thereby further reducing the airflow resistance.

[0048] The system structure of this invention is versatile and easy to assemble and set up, effectively meeting the needs of long-distance transportation of various types of gas media under different external working environments, greatly improving its applicability. On the other hand, the equipment effectively reduces the friction between the gas flow and the pipe wall during gas media transportation, thereby effectively reducing the energy loss caused by friction during gas media transportation, thus effectively improving the gas media transportation efficiency and reducing the energy consumption of gas media transportation operation.

[0049] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A gas delivery conduit having a dual drag reduction system, characterized by: The gas conveying pipeline with double drag reduction system comprises a conveying pipeline, a V-shaped drag reduction device, a flow rate sensor, a display and a detection circuit, the conveying pipeline and the V-shaped drag reduction device are both tubular structures with a rectangular axial section, the conveying pipeline is wrapped outside the V-shaped drag reduction device and coaxially distributed with the V-shaped drag reduction device, the flow rate sensor is at least one, embedded in the inner side of the V-shaped drag reduction device and electrically connected with the detection circuit through a wire, the V-shaped drag reduction device comprises a flow guide pipe body, a drag reduction ring and a drag reduction groove, wherein the flow guide pipe body is a tubular structure coaxially distributed with the conveying pipeline, the outer side of the flow guide pipe body is slidingly connected with the inner side of the conveying pipeline, the inner wall of the flow guide pipe body is uniformly distributed with a plurality of drag reduction rings, the drag reduction ring is a closed ring structure coaxially distributed with the flow guide pipe body, each drag reduction ring is uniformly distributed along the axial direction of the flow guide pipe body, and the spacing between adjacent two drag reduction rings is 0-5 mm, the drag reduction ring is an isosceles triangular ring structure in cross section, a plurality of drag reduction grooves are symmetrically distributed on the side surface of the drag reduction ring, the drag reduction groove is embedded along the inner side surface of the drag reduction ring, the drag reduction groove is a groove structure in cross section, and the groove wall of each drag reduction groove near the vertex of the drag reduction ring is parallelly distributed with the axial line of the flow guide pipe body and perpendicularly distributed with the diameter direction of the drag reduction ring, the side wall of the vertex position of the drag reduction ring and the groove wall of the drag reduction groove located on the side wall of the drag reduction ring form a rhombic structure, and the display and the detection circuit are both located outside the conveying pipeline and connected with the outer side of the conveying pipeline. The conveying pipeline and the V-shaped drag reduction device are respectively provided with a pipeline connecting mechanism at the positions of both ends, the pipeline connecting mechanism comprises a connecting flange, an elastic sealing ring, a spring piece, a connecting column and a positioning bolt, wherein the rear end surface of the connecting flange is coaxially distributed with the connecting column, the connecting column is a tubular structure coaxially distributed with the connecting flange, the front end surface of the connecting column is connected with the connecting flange, the rear half part of the connecting column is embedded in the conveying pipeline and located between the conveying pipeline and the V-shaped drag reduction device, the outer side surface and the inner side surface of the connecting column are respectively abutted with and slidingly connected with the conveying pipeline and the V-shaped drag reduction device, and the connecting column is further connected with the conveying pipeline through a plurality of positioning bolts, in addition, the inner side surface and the outer side surface of the connecting column are further provided with at least two elastic sealing rings which are uniformly distributed along the axial line and slidingly connected with the conveying pipeline and the V-shaped drag reduction device, and the outer side surface of the connecting column is further provided with at least three spring pieces which are uniformly distributed around the axial line of the connecting column and abutted with the inner side surface of the conveying pipeline. The V-shaped drag reduction device is additionally provided with an auxiliary drag reduction mechanism, wherein the auxiliary drag reduction mechanism comprises a buffer tank, a booster pump, a flow guide pipe, an atomizing nozzle, a control valve and a drag reduction agent; the buffer tank is connected to the outer side of the conveying pipe through a connecting mechanism, and the drag reduction agent is located in the buffer tank; the buffer tank is communicated with the booster pump through the flow guide pipe; the booster pump is additionally communicated with at least one atomizing nozzle through the flow guide pipe; the atomizing nozzle is embedded in the pipe wall of the flow guide pipe body, and the atomizing nozzle is located between two adjacent drag reduction rings; the axis of the atomizing nozzle forms an angle of 30°-90° with the axis of the flow guide pipe body; when the number of the atomizing nozzles located between two adjacent drag reduction rings is two or more, each atomizing nozzle is uniformly distributed around the axis of the flow guide pipe body; the flow guide pipe is communicated with the booster pump and the buffer tank through the control valve; and the control valve and the booster pump are electrically connected with a detection circuit.

2. A gas delivery conduit having a dual drag reduction system according to claim 1, characterized in that: The elastic sheet is located between two adjacent elastic sealing rings, and the length of the connecting column between the conveying pipe and the V-shaped drag reduction device is not less than 60% of the total length of the connecting column; the outer diameter of the connecting flange is at least 1.5 times of the maximum outer diameter of the end surface of the conveying pipe; and the rear end surface of the connecting flange is additionally abutted by at least one disc spring with the end surface of the conveying pipe and the V-shaped drag reduction device.

3. A gas delivery conduit having a dual drag reduction system according to claim 1, wherein: The flow guide pipe body and the conveying pipe are slidably connected through an assembly mechanism, and the assembly mechanism comprises guide sliding grooves and spring connecting plates; the guide sliding grooves are embedded in the inner side of the conveying pipe and are distributed in parallel with the axis of the conveying pipe; and the spring connecting plates are connected with the outer side of the flow guide pipe body and are distributed along the axis direction of the flow guide pipe body.

4. A gas delivery conduit having a dual drag reduction system according to claim 3, wherein: The spring connecting plate is a plate-shaped structure with any one of the following cross-sectional shapes: rectangle, sector, circular arc and trapezoid; and the spring connecting plate is spirally distributed around the axis of the conveying pipe.

5. A gas delivery conduit having a dual drag reduction system according to claim 1, wherein: The top angle of the drag reduction ring is an angle of 15°-60°, the bottom angle of the drag reduction groove is an angle of 30°-90°, and the depths of the drag reduction grooves are the same.

6. A gas delivery conduit having a dual drag reduction system according to claim 1, wherein: The flow rate sensor is located between two adjacent drag reduction rings and is connected with the side surface of the drag reduction ring.

7. A gas delivery conduit having a dual drag reduction system according to claim 1, wherein: The detection circuit is a circuit system based on an industrial single-chip microcomputer, and the detection circuit is additionally provided with an auxiliary driving power supply based on a storage battery and a multi-channel voltage stabilizing circuit.

8. A method of using a gas delivery conduit having a dual drag reduction system according to claim 1, characterized in that: The use method of the gas conveying pipe with the double drag reduction system comprises the following steps: S1, pipe assembly: firstly, the number and length of the conveying pipe and the V-shaped drag reduction device are set; then, the conveying pipe, the V-shaped drag reduction device, the flow rate sensor, the display and the detection circuit are assembled to obtain a plurality of finished product assembly pipes; then, the finished product assembly pipes are connected through the pipe connecting mechanism to obtain a finished product drag reduction pipe; finally, the detection circuit arranged at each conveying pipe is electrically connected with an external control circuit, and data connection is established. S2, gas delivery, the gas medium to be delivered is delivered into the finished product drag reduction pipeline after being pressurized by the pressurizing device, so that the high-pressure gas is delivered along the axis direction of the finished product drag reduction pipeline. In the delivery process, the gas flow located at the middle part of the pipeline is directly delivered along the pipeline direction, the high-pressure gas flow located at the pipeline wall contacts the V-shaped drag reduction device, and the V-shaped drag reduction device reduces the resistance between the gas flow and the pipeline wall during the flow of the gas flow and delivers the gas flow along the axis direction of the finished product drag reduction pipeline. In the delivery process, the flow rate of the gas flow is detected by the flow rate sensor, and the detection result is displayed on the display and delivered to the external control circuit, so as to realize the purpose of synchronous detection of the delivery flow rate of the gas medium; S3, strengthening drag reduction, in the gas delivery in the S2 step, the auxiliary drag reduction mechanism is synchronously driven to operate, the drag reduction agent set by the auxiliary drag reduction mechanism is pressurized to the same pressure as the gas medium delivery pressure and then sprayed into the finished product assembly pipeline, so that the sprayed drag reduction agent flows along the finished product assembly pipeline together under the driving of the gas flow, and is coated on the surface of the drag reduction ring and the drag reduction groove of the V-shaped drag reduction device during the flow of the gas flow, further reducing the resistance between the drag reduction ring, the drag reduction groove and the gas medium.

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