In-pipe patch type gas-solid two-phase erosion test device and use method

Abstract

The application provides a gas-solid two-phase erosion test device with an in-pipe patch, which comprises a control system, a gas supply system, a feeding system, a heating system and a gas-solid separator; the control system is connected with the gas supply system, the feeding system and the heating system; the heating system comprises a test pipe section, a heat tracing band, a temperature controller and a plurality of test patches; the temperature controller is on the test pipe section, the heat tracing band is wound on the outer wall of the test pipe section and is connected with the temperature controller; the plurality of test patches are arranged on the inner wall of the test pipe section, the plurality of test patches are distributed along the circumferential direction of the test pipe section, and the angle between each test patch and the inner wall of the test pipe section is the same or different. The minimum adjustable number of the device is 1°, the device can be used for small erosion angle experiments and the angle is easy to control, in addition, the test range is large, the test method is more accurate, and the temperature can be accurately controlled; the whole system is a semi-automatic system and is easy to operate.

Description

Technical Field

[0001] This invention relates to the field of tubular erosion testing technology, and in particular to an in-tube patch-type gas-solid two-phase erosion testing device and its usage method. Background Technology

[0002] Pipelines play a crucial role in fluid transportation within the petroleum industry, especially during the transport of gases such as natural gas. The collision of flowing gas containing solid particles with the pipeline surface causes erosion and wear. Erosion can damage pipelines during production, leading to equipment failure and even leaks. Severe erosion can damage oil and gas production tubing and gathering pipelines, resulting in significant economic losses. Therefore, effective experimental simulations of pipeline erosion during oil and gas transportation or injection / production are essential to assess the degree of pipeline wear and mitigate economic and environmental losses.

[0003] Currently, the main erosion testing systems both domestically and internationally include rotary, jet, pipe-flow, and single-particle erosion testing systems. Among them, the rotary erosion testing system operates by rotating a sample on a rotating disk within a particle-containing slurry at high speed, resulting in erosion damage. However, eddies are easily generated inside the equipment, affecting the accuracy of the erosion test data; it is mainly for liquid-solid two-phase flows. The jet erosion testing system operates by using a high-speed airflow to generate negative pressure, carrying particles to impact the target surface at high speed. However, its drawbacks are significant: the experimental environment differs greatly from actual working conditions, and the degree of target erosion is usually overestimated. It also requires high-speed cameras, PIVs, and other devices to monitor the particle motion in real time; it is mainly for gas-solid two-phase flows. Single-particle erosion testing systems... The operating principle of the particle erosion test system is to use a spring-loaded arm device to convert elastic energy into particle kinetic energy to impact the target surface. However, the experimental particles need to be self-processed, the device cost is high, and it is only suitable for single particle impact erosion. The pipe flow test system is most similar to the in-pipe patch gas-solid two-phase erosion test device. Its operating principle is that the high-speed flowing continuous phase in the tube column drives the discrete phase to move and impact the tube wall, resulting in wear. However, ordinary pipe flow erosion test systems do not have a heating system and cannot control the ambient temperature. Most importantly, they can generally only conduct large erosion angle experiments and the angle is not easy to control. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, this invention discloses an in-pipe patch-type gas-solid two-phase erosion testing device. The device includes: a control system, a gas supply system, a feeding system, a heating system, and a gas-solid separator. The control system is connected to the gas supply system, the feeding system, and the heating system, and the gas supply system, the feeding system, the heating system, and the gas-solid separator are connected by pipelines. The heating system includes a test pipe section, a heating tape, a temperature controller, and multiple test plates. The temperature controller is located on the test pipe section, and the heating tape is wrapped around the outer wall of the test pipe section and connected to the temperature controller. Multiple test plates are disposed on the inner wall of the test pipe section, and the multiple test plates are distributed along the circumference of the test pipe section, with each test plate having the same or different angles with the inner wall of the test pipe section.

[0005] Optionally, the inner wall of the test tube section is provided with multiple sets of fasteners, and each set of fasteners corresponds one-to-one with a plurality of test hangers; the fasteners include fixing screws, angle brackets and mounting screw holes; the angle brackets and the test hangers are provided with openings; the fixing screws pass through the openings on the test hangers and the angle brackets and are embedded in the mounting screw holes.

[0006] Optionally, the plurality of test clips include two sets of clip groups, the two sets of clip groups are symmetrically arranged in the test tube section, and there is a first interval and a second interval between the two sets of clip groups. The arc angle corresponding to the first interval in the test tube section is 30°, and the arc angle corresponding to the second interval in the test tube section is 96°.

[0007] Optionally, in the group of hanging plates, there is a third interval between two adjacent hanging plates, and the arc angle corresponding to the third interval in the test tube section is 9°.

[0008] Optionally, the test hanging pieces are provided in 28 units.

[0009] Optionally, the test hanging piece is a pipe column or pipe steel.

[0010] Optionally, the heat tracing cable is a temperature-controlled resistance wire.

[0011] To address the aforementioned problems, this invention also discloses a method for using an in-tube patch-type gas-solid two-phase erosion testing device, applicable to any of the aforementioned devices. The device includes: a control system, a gas supply system, a feeding system, a heating system, and a gas-solid separator. The method of use includes:

[0012] S1. Fix multiple test hangers on the inner wall of the test pipe section, wherein the multiple test hangers are distributed along the circumference of the test pipe section, and the angle between each test hanger and the inner wall of the test pipe section is the same or different.

[0013] S2. The gas supply system and the material supply system are opened through the control system to input gas-solid two phases into the test pipe section; the gas-solid two phases are separated in the gas-solid separator.

[0014] Optionally, step S1 may also include:

[0015] Adjust the angle between the test hanging plate and the inner wall of the test tube section, and each adjustment shall be at least 1 degree.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] This application provides an in-pipe patch-type gas-solid two-phase erosion test scheme. By adjusting the angle between the test patch and the test pipe section using an angle chuck, the angle of the gas-solid two-phase flow impacting the pipe is indirectly simulated for erosion simulation testing. Compared to traditional erosion test devices, this application also includes a heating system that uses a temperature-controlled resistance wire to heat the test pipe section, achieving the effect of simulating the actual pipe temperature. Furthermore, the angle chuck in this application has a minimum adjustable range of 1°, which can be used for small erosion angle tests and the angle is easily controlled. The device can also perform multiple tests simultaneously, and the in-pipe patch arrangement is closer to reality and more accurate. During material feeding, an active unidirectional sand feeding method is adopted, avoiding the backflow of sand particles at the sand feeding port in conventional sand feeding methods. Simultaneously, an acrylic glass tube is installed on the main pipe section to observe the internal flow field, achieving visualization of the flow field inside the pipe. The entire system is semi-automatic and easy to operate. The in-pipe patch-type gas-solid two-phase flow erosion test device provided in this application will provide a powerful test tool for research on erosion during oil and gas well production, gas storage well injection and production, and pipeline transportation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This diagram illustrates the structure of the in-tube patch-type gas-solid two-phase erosion test device provided in an embodiment of the present invention.

[0020] Figure 2 A schematic diagram of the feeding system structure provided in an embodiment of the present invention is shown;

[0021] Figure 3 A schematic diagram of the heating system structure provided in an embodiment of the present invention is shown;

[0022] Figure 4 The diagram shows different angle test hanging plate arrangement methods provided in the embodiments of the present invention;

[0023] Figure 5 A schematic diagram of the gas-solid separator structure provided in an embodiment of the present invention is shown.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Fan motor, 2-Fan, 3-Flow control valve, 4-Flow meter, 5-Cable, 6-Control cabinet, 7-Feeding system, 8-Variable speed motor, 9-Feeding valve, 10-Storage hopper, 11-Feeder, 12-Feed inlet, 13-Acrylic glass tube, 14-Heating system, 15-Test pipe section, 16-Temperature controller, 17-Fixing screw, 18-Angle bracket, 19-Test hanging plate, 20-Insulation layer, 21-Mounting screw hole, 22-Temperature probe, 23-Heat tracing tape, 24-Steel wire hose a, 25-Gas-solid separator, 26-Fluid inlet end, 27-Nylon mesh, 28-Steel wire hose b, 29-Exhaust pipe, 30-Sand discharge port, 31-Sand discharge valve, 32-Bypass exhaust pipe, 33-Main steel pipe, 34-Air supply system, 35-Control system. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, any product that is the same as or similar to the present invention, derived by anyone under the guidance of the present invention or by combining the features of the present invention with other prior art, falls within the protection scope of the present invention. Furthermore, all other embodiments obtained by those skilled in the art without inventive effort are within the protection scope of the present invention.

[0027] In the description of this invention, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0028] This invention provides an in-pipe patch-type gas-solid two-phase erosion testing device, such as... Figure 1As shown, the device includes: an air supply system 34, a control system 35, a feeding system 7, a heating system 14, and a gas-solid separator 25. The control system 35 is housed in a control cabinet 6, which is connected via cables 5 to the fan motor 1 of the air supply system 34, the variable speed motor 8 of the feeding system 7, and the temperature controller 16 of the heating system 14. The air supply system 34 is connected to an acrylic tube 13 via a main steel pipe 33, which is also connected to the feeding system 7. One end of the test tube section 15 in the heating system 14 is connected to the main steel pipe 33 via the acrylic tube 13, and the other end is connected to the gas-solid separator 25 via a flexible steel hose a24. The control system 35 controls the gas supply system 34, the feeding system 7, and the heating system 14, thereby controlling the entire device. The gas supply system 34 provides airflow to the device and includes a fan motor 1, a fan 2, a flow control valve 3, a flow meter 4, and a bypass exhaust pipe 32. The fan 2 is driven by the fan motor 1, which is controlled by the control system 35. The flow control valve 3 and the flow meter 4 are installed on the main pipeline 33 and are used to detect and control the gas flow rate. The bypass exhaust pipe 32 is installed between the flow control valve 3 and the fan 2 to discharge excess airflow.

[0029] In one embodiment of the present invention, such as Figure 2 As shown, the feeding system 7 includes a variable speed motor 8, a feeding valve 9, a storage hopper 10, a feeder 11, and a feed inlet 12. The storage hopper 10 is fixed to the top of the feeding system 7 and connected to the system. The feeder 11 is located in the middle section of the feeding system 7 and is connected to the variable speed motor 8. The feeding speed of the feeder 11 is adjusted by the variable speed motor 8, which is controlled by the control system 35. The feeding system 7 is connected to the main pipeline steel pipe 33 through the bottom feed inlet 12.

[0030] In another embodiment of the invention, such as Figure 3As shown, the heating system 14 includes a test pipe section 15, a temperature controller 16, a thermal insulation layer 20, a temperature probe 22, and a heating cable 23. The test pipe section 15 is connected to the main steel pipe 33 via an acrylic tube 13, and its other end is connected to the gas-solid separator 25 via a flexible steel wire a24. The temperature controller 16, located on the test pipe section 15, controls the temperature of the heating cable 23 and is controlled by the control system 35. The heating cable 23 is wrapped around the outer wall of the test pipe section 15, with both ends connected to the temperature controller 16 to heat the test pipe section 15. The thermal insulation layer 20 is placed outside the test pipe section 15 to ensure the test reaches the expected temperature. The temperature probe 22 is connected to both the test pipe section 15 and the temperature controller 16 to monitor the real-time temperature of the test pipe section 15. The heating cable 23 is a temperature-controlled resistance wire, which can precisely control the test temperature. The internal flow field can be visualized by observing the internal flow field through the acrylic tube 13.

[0031] This application indirectly simulates the angle of gas-solid two-phase flow impacting the pipeline by adjusting the angle between the test hanging piece 19 and the inner wall of the test pipe section 15 through the angle holder 18, so as to conduct pipeline erosion simulation test.

[0032] In practice, the inner wall of the test tube section 15 is provided with multiple sets of fasteners, each corresponding to a different test hanging piece 19. Each fastener includes a fixing screw 17, an angle bracket 18, and a mounting screw hole 21. The angle bracket 18 and the test hanging piece 19 have openings. The fixing screw 17 passes through the openings in the angle bracket 18 and the test hanging piece 19 and is embedded in the mounting screw hole 21. Multiple test hanging pieces 19 are disposed on the inner wall of the test tube section 15, distributed along the circumference of the test tube section 15, and the angle between each test hanging piece 19 and the inner wall of the test tube section 15 may be the same or different.

[0033] In one embodiment, 28 test hangers 19 are placed on the inner wall of the test tube section 15. The 28 test hangers 19 are divided into two groups of hangers, with 14 test hangers 19 in each group. Figure 4 The diagram shows the arrangement of 28 test hangers 19 mounted on the inner wall of the test tube section 15. Figure 4As shown, two sets of hanging plates are symmetrically arranged within the test pipe section 15, with a first interval and a second interval between them. The first interval corresponds to an arc angle of 30° within the test pipe section 15, and the second interval corresponds to an arc angle of 96° within the test pipe section 15. In each hanging plate set, there is a third interval between adjacent hanging plates, and the third interval corresponds to an arc angle of 9° within the test pipe section 15. In this arrangement, the angle between each test hanging plate 19 and the inner wall of the test pipe section 15 is the same. During operation, the user can select appropriate angle holders and the number of hanging plates according to actual needs, with each test hanging plate 19 having the same or different angles with the inner wall of the test pipe section 15. This device can simultaneously conduct erosion tests under various variable conditions, such as test hanging plates 19 made of different materials and at different angles, enabling multiple tests to be completed in a single installation. Specifically, the test pipe section of this application is equipped with 28 angle holders, corresponding to a maximum of 28 test hanging plates, providing a wide testing range. Among them, the test hanging plate 19 is a pipe column or pipe steel. The angle holder 18 has a minimum adjustable number of 1°, so this device can conduct small erosion angle experiments and the angle is easy to control.

[0034] In another embodiment of the invention, such as Figure 5 As shown, Figure 5 A schematic diagram of the gas-solid separator 25 in this embodiment is shown. The gas-solid separator 25 includes a fluid inlet end 26, a nylon mesh 27, a steel wire hose b28, an exhaust pipe 29, a sand discharge port 30, and a sand discharge valve 31. The gas-solid separator 25 is connected to the steel wire hose a24 via the fluid inlet end 26. One end of the steel wire hose b28 is connected to the exhaust pipe 29, and the other end is connected to the waste gas receiving device. The exhaust pipe 29 is fixed to the top of the gas-solid separator 25 and enters the interior of the gas-solid separator 25. The nylon mesh 27 is placed at the connection between the steel wire hose b28 and the exhaust pipe 29. The sand discharge port 30 is located at the bottom of the gas-solid separator 25, and the sand discharge valve 31 is disposed on the sand discharge port 30.

[0035] To enable those skilled in the art to better understand the operation of adjusting the angle between the test hanger 19 and the test pipe section 15 using the angle holder 18 in this application to simulate the angle of gas-solid two-phase flow impacting the pipe, the applicant describes the arrangement and function of the test hanger as follows: The angle holder 18 is selected according to the requirements of the test hanger 19 for material, number, and simulated angle; the test hanger 19 is fixed to the inner wall of the test pipe section 15 by inserting the fixing screw 17 into the mounting screw hole 21 through the opening of the angle holder 18 and the test hanger 19; the test hanger 19 corresponding to each angle holder has a specific angle with the test pipe wall 15, and the angles of different test hangers 19 with the inner wall of the test pipe section 15 may be the same or different.

[0036] The use and working process of this invention are as follows:

[0037] The test hanger 19 is installed on the test hanger mounting screw hole 21 on the inner wall of the test pipe section 15 according to the test requirements using fixing screws 17 and angle brackets 18, and the test pipe 15 is correctly installed. The control system 35 is turned on, and the blower motor 1 controls the blower 2 to generate airflow, which flows through the main steel pipe 33 and the feeding system 7. The sand flows into the main steel pipe 33 through the feed inlet 12 and forms a gas-solid two-phase flow with the airflow. The gas-solid two-phase flow flows through the plexiglass tube 13 into the test pipe section 15 in the heating system 14, impacting the test hanger 19. To simulate the actual temperature downhole, the heating cable 23 can be adjusted using the temperature controller 16 to heat the test pipe section 15. Finally, the gas-solid two-phase fluid enters the gas-solid separator 25 through the fluid inlet end 26 via the steel wire hose a24 for gas-solid separation. The generated waste gas is discharged from the steel wire hose b28 through the exhaust pipe 29, and the sand is stored at the bottom of the gas-solid separator 25.

[0038] The in-pipe patch-type gas-solid two-phase erosion testing device provided in this application indirectly simulates the angle of gas-solid two-phase flow impacting the pipeline by adjusting the angle between the test hanging plate 19 and the test pipe section 15 through the angle caliper 18, thereby conducting pipeline erosion simulation tests. Compared with traditional erosion testing devices, this device also has a heating system, which heats the test pipe section through a temperature-controlled resistance wire to achieve the effect of simulating the actual temperature of the pipeline. In addition, the angle caliper 18 in this application has a minimum adjustable number of 1°, so the device can be used for small erosion angle tests and the angle is easily controlled. Furthermore, the device can perform multiple sets of tests simultaneously, and the in-pipe patch arrangement is closer to reality and more accurate. During material feeding, an active unidirectional sand feeding method is adopted, avoiding the phenomenon of sand particles backflush at the sand feeding port in conventional sand feeding methods. At the same time, an plexiglass tube 13 is set on the main pipe section to observe the internal flow field, realizing visualization of the flow field inside the pipeline. The entire system is a semi-automatic system and is easy to operate. The in-pipe patch-type gas-solid two-phase flow erosion test device provided in this application will provide a powerful test tool for research on erosion during oil and gas well production, gas storage well injection and production, and pipeline transportation.

[0039] To enable those skilled in the art to better understand the present invention, the following embodiments will be used to provide a detailed description of the in-pipe patch-type gas-solid two-phase erosion device and its usage method.

[0040] Example 1

[0041] Operating condition 1: 80℃, impact angle 4°, casing material P110, flow velocity 8m / s, sand quantity 0.001kg / s.

[0042] After pretreatment, two P110 test plates are installed on the test pipe section using fixing screws and 4° angle brackets according to the test requirements. The test pipe is then correctly installed, and the pipeline connections are checked to ensure they are intact and that all valves and switches are in the correct positions required by the test. Power is connected to the control cabinet, the fan is turned on, and the flow control valve is adjusted until the flow meter reading reaches the required flow rate of 8 m / s. The heating system is then turned on to heat the test pipe section to the required temperature of 80°C. After the flow meter and temperature controller readings stabilize, the speed-regulating motor of the feeding device is turned on and adjusted to the required sand feeding speed using the control cabinet. The feeding valve is adjusted to the required sand feeding rate of 0.001 kg / s, and the test begins. Timing is maintained, and the site conditions are monitored closely, with emergency preparedness in place. The test is conducted according to the designed test time. After the test, the test plates are post-treated. After the test, the feeding valve is closed first, followed by the heating system, speed-regulating motor, and fan. Finally, the main power supply to the control cabinet is turned off. Once all equipment is shut down and safety is confirmed, the test pipe section is removed, and the next stage is proceeded.

[0043] The impact angle is the angle between the test hanging plate 19 and the inner wall of the test pipe section 15, which is the impact angle of the gas-solid two-phase flow.

[0044] Example 2:

[0045] Operating Condition 2: 130℃, impact angle 7°, casing material N80, flow velocity 12m / s, sand quantity 0.002kg / s.

[0046] After pretreatment, two N80 test plates are installed on the test pipe section using fixing screws and 7° angle brackets according to the test requirements. The test pipe is then correctly installed, and the pipeline connections are checked to ensure they are intact and that all valves and switches are in the correct positions required by the test. Power is connected to the control cabinet, the fan is turned on, and the flow control valve is adjusted until the flow meter reading reaches the required flow rate of 12 m / s. The heating system is then turned on to heat the test pipe section to the required temperature of 130°C. After the flow meter and temperature controller readings stabilize, the speed-regulating motor of the feeding device is turned on and adjusted to the required sand feeding speed using the control cabinet. The feeding valve is adjusted to the required sand feeding rate of 0.002 kg / s, and the test begins. Timing is maintained, and the site conditions are monitored closely, with emergency preparedness in place. The test is conducted according to the designed test time. After the test, the plates are post-treated. After the test, the feeding valve is closed first, followed by the heating system, speed-regulating motor, and fan. Finally, the main power supply to the control cabinet is turned off. Once all equipment is shut down and safety is confirmed, the test pipe section is removed, and the next stage is proceeded.

[0047] The impact angle is the angle between the test hanging plate 19 and the inner wall of the test pipe section 15, which is the impact angle of the gas-solid two-phase flow.

[0048] Example 3:

[0049] Operating Condition 3: 160℃, impact angles 1°, 7°, 10°, casing material P110, N80, flow velocity 10m / s, sand quantity 0.002kg / s.

[0050] After pretreatment, take the appropriate number of P110 and N80 test hangers and install them on the test pipe section using fixing screws and 1°, 7°, and 10° angle brackets, according to the test requirements. Correctly install the test pipe and check that the pipeline connections are intact and that all valves and switches are in the correct positions required by the test. Connect the power supply to the control cabinet, turn on the fan, and adjust the flow control valve until the flow meter reading reaches the required flow rate of 10 m / s. Turn on the heating system to heat the test pipe section to the required temperature of 160°C. Wait for the flow rate to... After the readings of the meter and temperature controller stabilize, turn on the speed-regulating motor of the feeding device and adjust it to the sand feeding speed required for the test using the control cabinet. Adjust the feeding valve to the required sand feeding rate of 0.002 kg / s and start the test. Start timing and pay close attention to the site conditions, be prepared for emergencies, and conduct the test according to the designed test time. After the test, perform post-processing on the hanging plates. After the test, first close the feeding valve, then turn off the heating system, speed-regulating motor and fan in sequence, and finally turn off the main power supply on the control cabinet. After all equipment is turned off and safety is confirmed, remove the test section and proceed to the next stage.

[0051] The impact angle is the angle between the test hanging plate 19 and the inner wall of the test pipe section 15, which is the impact angle of the gas-solid two-phase flow.

[0052] As can be seen, the in-pipe patch-type gas-solid two-phase erosion testing device provided in this application indirectly simulates the angle of gas-solid two-phase flow impacting the pipeline by adjusting the angle between the test hanging plates and the test pipe section through angle holders, thereby conducting pipeline erosion simulation tests. As seen in Examples 1-3, this device can simultaneously conduct erosion test studies under multiple variable conditions, such as different materials and different angles, enabling multiple sets of tests to be completed in a single installation. This is because the test pipe section of this application is equipped with 28 angle holders, corresponding to a maximum of 28 test hanging plates, providing a large testing range. Compared to traditional nozzle-type erosion testing devices, the in-pipe patch-type gas-solid two-phase erosion testing device in this application uses an in-pipe plate arrangement method, which is closer to reality and more accurate. Furthermore, this in-pipe patch-type gas-solid two-phase erosion testing device utilizes a temperature-controlled resistance wire to heat the test pipe section, precisely controlling the temperature environment required for the test, and can be used for tests with strict temperature requirements. The device is highly automated, and the control cabinet almost automates the testing process. The testing device is fully functional, reasonably priced, and economical, and can meet the testing requirements under various working conditions.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0054] For the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps can be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and components involved are not necessarily essential to the present invention.

[0055] The above provides a detailed description of the in-tube patch-type gas-solid two-phase erosion test device and its usage method provided by the present invention. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A tube-mounted gas-solid two-phase erosion test device, characterized in that, The device includes: a control system, an air supply system, a feeding system, a heating system, and a gas-solid separator; The control system is connected to the gas supply system, the feeding system, and the heating system, and the gas supply system, the feeding system, the heating system, and the gas-solid separator are connected by pipelines. The heating system includes a test tube section, a heating cable, a temperature controller, and multiple test hanging plates; The temperature controller is located on the test tube section, the heat tracing cable is wrapped around the outer wall of the test tube section, and the heat tracing cable is connected to the temperature controller. Multiple test clips are disposed on the inner wall of the test pipe section, and the multiple test clips are distributed along the circumference of the test pipe section, and the angle between each test clip and the inner wall of the test pipe section is the same or different. The inner wall of the test tube section is provided with multiple sets of fasteners, and each set of fasteners corresponds to one of the multiple test hanging pieces. The fastener includes a fixing screw, an angle bracket, and a mounting screw hole; the angle bracket and the test hanger are provided with openings; the fixing screw passes through the openings on the test hanger and the angle bracket and is embedded in the mounting screw hole; Adjust the angle between the test hanging plate and the inner wall of the test tube section, and each adjustment shall be at least 1°.

2. The apparatus according to claim 1, characterized in that, The plurality of test clips include two sets of clip groups, which are symmetrically arranged within the test tube section, and there is a first interval and a second interval between the two sets of clip groups. The first interval corresponds to an arc angle of 30° within the test tube section, and the second interval corresponds to an arc angle of 96° within the test tube section.

3. The apparatus according to claim 1, characterized in that, In the hanging plate group, there is a third interval between two adjacent hanging plates, and the arc angle corresponding to the third interval in the test tube section is 9°.

4. The apparatus according to claim 2 or 3, characterized in that, The test hanging plates consist of 28 pieces.

5. The apparatus according to claim 1, characterized in that, The test hanging plates are steel columns and / or pipes.

6. The apparatus according to claim 1, characterized in that, The heat tracing cable is a temperature-controlled resistance wire.

7. A method of using an in-tube patch-type gas-solid two-phase erosion testing device, applied to the device as described in any one of claims 1-6, the device comprising: The control system, air supply system, feeding system, heating system, and gas-solid separator are characterized in that the method of use includes: S1. Fix multiple test hangers on the inner wall of the test pipe section, wherein the multiple test hangers are distributed along the circumference of the test pipe section, and the angle between each test hanger and the inner wall of the test pipe section is the same or different. S2. The gas supply system and the feeding system are opened through the control system to input gas-solid two phases into the test pipe section; the gas-solid two phases are separated in the gas-solid separator.

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