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

Abstract

The invention provides an in-pipe patch type gas-solid two-phase erosion test device. The device 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 hanging pieces; the temperature controller is arranged on the test pipe section, the heat tracing band is wound on the outer wall of the test pipe section, and the heat tracing band is connected with the temperature controller; the multiple test hanging pieces are arranged on the inner wall of the test pipe section and distributed in the circumferential direction of the test pipe section, and the angles between the test hanging pieces and the inner wall of the test pipe section are the same or different. The minimum dispatchable number of the device is 1 degree, the device can be used for small-erosion-angle experiments, the angle is easy to control, in addition, the testing range is large, the testing method is more accurate, and accurate control over the temperature can be achieved; the whole system is a semi-automatic system and is simple and convenient to operate.

Description

Technical Field

[0001] The invention relates to the technical field of pipe column erosion testing, and in particular to an in-pipe patch type gas-solid two-phase erosion testing device and a use method thereof. Background Art

[0002] Pipelines play an important role in the fluid transportation process of the petroleum industry, especially in the migration of natural gas and other gases, the gas flow containing solid particles collides with the pipeline surface, causing erosion and wear of the pipeline. Erosion can damage pipelines during production, causing equipment damage and even pipeline leakage. Severe erosion and wear can damage oil and gas production pipes and gathering pipelines, causing huge economic losses. Therefore, effective test simulation of pipeline erosion during oil and gas transportation or injection and production is carried out to evaluate the degree of pipeline wear in order to reduce economic and environmental losses.

[0003] At present, the main erosion test systems at home and abroad include rotary, jet, tube flow and single particle erosion test systems. Among them, the operating principle of the rotary erosion test system is that the sample on the rotating disk rotates at high speed in the particle-containing slurry, followed by erosion damage, but eddy currents are easily generated inside the equipment, affecting the accuracy of the erosion test data. It is mainly aimed at liquid-solid two-phase flow; the operating principle of the jet erosion test system is that the negative pressure generated by the high-speed airflow carries the particles and makes them hit the target surface at high speed. Of course, the disadvantages are very obvious. The experimental environment is far from the actual working conditions, and the degree of erosion of the target surface is usually overestimated. It is also necessary to use high-speed cameras, PIV and other devices to monitor the movement state of the particles in real time. It is mainly aimed at gas-solid two-phase flow; single particle The operating principle of the particle erosion experimental system is to use a spring pressure arm device to convert elastic energy into particle kinetic energy to impact the target surface, but the experimental particles need to be self-processed, the device cost is high and it is only suitable for single particle impact erosion; the tube flow experimental system is most similar to the in-tube patch type gas-solid two-phase erosion test device. Its operating principle is that the high-speed flowing continuous phase in the pipe column drives the discrete phase to move, hit the pipe wall, and cause wear, but the ordinary tube flow erosion experimental system does not have a heating system and cannot control the ambient temperature. The most important thing is that it can only carry out large erosion angle experiments and the angle is not easy to control. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, the present invention discloses an in-tube patch-type gas-solid two-phase erosion test device, which comprises: a control system, an air supply system, a feeding system, a heating system and a gas-solid separator; the control system is connected with the air supply system, the feeding system and the heating system, and the air supply system, the feeding system, the heating system and the gas-solid separator are connected by pipelines; the heating system comprises a test pipe section, a heating belt, a temperature controller and a plurality of test hanging plates; wherein the temperature controller is on the test pipe section, the heating belt is wound around the outer wall of the test pipe section, and the heating belt is connected to the temperature controller; a plurality of the test hanging plates are arranged on the inner wall of the test pipe section, and the plurality of the test hanging plates are distributed along the circumferential direction of the test pipe section, and the angles between each of the test hanging plates and the inner wall of the test pipe section are the same or different.

[0005] Optionally, the inner wall of the test pipe section is provided with multiple groups of fixing parts, and the multiple groups of fixing parts correspond one-to-one to the multiple test hanging plates; the fixing parts include fixing screws, angle clamps and mounting screw holes; the angle clamps and the test hanging plates are provided with openings; the fixing screws pass through the openings on the test hanging plates and the angle clamps and are embedded in the mounting screw holes.

[0006] Optionally, the plurality of test hanging plates include two groups of hanging plate groups, the two groups of hanging plate groups are symmetrically arranged in the test pipe section, and there is a first interval and a second interval between the two groups of hanging plate groups, the first interval corresponds to an arc angle of 30° in the test pipe section, and the second interval corresponds to an arc angle of 96° in the test pipe section.

[0007] Optionally, 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 pipe section is 9°.

[0008] Optionally, 28 test coupons are provided.

[0009] Optionally, the test coupon is a pipe column or pipeline steel.

[0010] Optionally, the heating tape is a temperature-controllable resistance wire.

[0011] In order to solve the above problems, the present invention also discloses a method for using an in-tube patch-type gas-solid two-phase erosion test device, which is applied to any of the above-mentioned devices, and the device comprises: a control system, a gas supply system, a feeding system, a heating system and a gas-solid separator. The method for using the device comprises:

[0012] S1. Fixing a plurality of test coupons on the inner wall of the test pipe section, wherein the plurality of test coupons are distributed along the circumferential direction of the test pipe section, and the angles between each of the test coupons and the inner wall of the test pipe section are the same or different;

[0013] S2. Open the gas supply system and the material supply system through the control system to input gas-solid two-phase into the test pipe section; the gas-solid two-phase is separated in the gas-solid separator.

[0014] Optionally, in S1, the step of:

[0015] The angle between the test coupon and the inner wall of the test pipe section is adjusted, and the angle is adjusted by at least 1 degree each time.

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

[0017] The embodiment of the present application provides an in-pipe patch-type gas-solid two-phase erosion test scheme, which indirectly simulates the angle of the gas-solid two-phase flow impacting the pipeline by adjusting the angle of the test hanging piece and the test pipe section through the angle holder, so as to carry out a pipeline erosion simulation test. Compared with the traditional erosion test device, the present application also has a heating system, which heats the test pipe section through a temperature-controllable resistance wire to achieve the effect of simulating the actual temperature of the pipeline. In addition, the minimum adjustable number of the angle holder in the present application is 1°, which can be used for small erosion angle tests and the angle is easy to control. And the device can carry out multiple groups of tests at the same time, and the layout method in the pipe is closer to reality and more accurate. When adding materials, an active one-way sand adding method is adopted to avoid the phenomenon of sand backblowing at the sand adding port in the conventional sand adding method. At the same time, a plexiglass tube is set on the main pipe section to observe the internal flow field, so as to realize the visualization of the flow field in the pipeline. The whole 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 method for related research work on erosion conditions during oil and gas well production, gas storage well injection and production, and pipeline transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The schematic diagram of the structure of the patch-type gas-solid two-phase erosion test device in a tube provided by an embodiment of the present invention is shown;

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

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

[0022] Figure 4 A schematic diagram showing the arrangement of test coupons at different angles provided by an embodiment of the present invention is shown;

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

[0024] Description of reference numerals:

[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 funnel, 11- feeder, 12- feeding port, 13- plexiglass tube, 14- heating system, 15- test pipe section, 16- temperature controller, 17- fixing screw, 18- angle holder, 19- test hanging piece, 20- thermal insulation layer, 21- mounting screw hole, 22- temperature probe, 23- heating belt, 24- steel hose a, 25- gas-solid separator, 26- fluid inlet end, 27- nylon net, 28- steel hose b, 29- exhaust pipe, 30- sand discharge port, 31- sand discharge valve, 32- bypass exhaust pipe, 33- main road steel pipe, 34- air supply system, 35- control system. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the present invention and its application or use. Based on the embodiments of the present invention, any product identical or similar to the present invention obtained by anyone under the inspiration of the present invention or by combining the features of the present invention with other prior arts falls within the scope of protection of the present invention. In addition, all other embodiments obtained by ordinary technicians in this field without carrying out creative work belong to the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0028] The embodiment of the present invention provides a patch-type gas-solid two-phase erosion test device in a tube, 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 arranged in a control cabinet 6, and the control cabinet 6 is connected 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 through a cable 5, and the air supply system 34 is connected to the organic glass tube 13 through a main steel pipe 33, and the main steel pipe 33 is connected to the feeding system 7. One end of the test pipe section 15 in the heating system 14 is connected to the main steel pipe 33 through the organic glass tube 13, and the other end is connected to the gas-solid separator 25 through a steel wire hose a24. The control system 35 is used to control the air supply system 34, the feeding system 7 and the heating system 14, so as to realize the control of the whole device; the air supply system 34 is used to provide airflow to the device, including a fan motor 1, a fan 2, a flow control valve 3, a flow meter 4 and a bypass exhaust pipe 32; the operation of the fan 2 is driven by the fan motor 1, and the fan motor 1 is controlled by the control system 35. The flow control valve 3 and the flow meter 4 are arranged on the main steel pipe 33, and the flow control valve 3 and the flow meter 4 are used to detect and control the gas flow. The bypass exhaust pipe 32 is arranged between the flow control valve 3 and the fan 2, and is used to discharge excess airflow.

[0029] In one embodiment of the present invention, 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 port 12. The storage hopper 10 is fixed to the top of the feeding system 7 and connected to the feeding system. The feeder 11 is arranged 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, and the variable speed motor 8 is controlled by the control system 35. The feeding system 7 is connected to the main road steel pipe 33 through the feed port 12 at the bottom.

[0030] In another embodiment of the present invention, 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 belt 23. The test pipe section 15 is connected to the main steel pipe 33 through the organic glass tube 13, and the other end is connected to the gas-solid separator 25 through the steel hose a24. Among them, the temperature controller 16 is on the test pipe section 15, which is used to control the temperature of the heating belt 23, and the temperature controller 16 is controlled by the control system 35. The heating belt 23 is wound on the outer wall of the test pipe section 15, and the two ends of the heating belt 23 are connected to the temperature controller 16 to heat the test pipe section 15. The thermal insulation layer 20 is arranged outside the test pipe section 15 to ensure that the test can reach the expected test temperature. The two ends of the temperature probe 22 are respectively connected to the test pipe section 15 and the temperature controller 16 to monitor the real-time temperature of the test pipe section 15. Among them, the heating belt 23 is a temperature-controllable resistance wire, which can accurately control the test temperature. By observing the internal flow field through the organic glass tube 13, the flow field in the pipeline can be visualized.

[0031] The present application adjusts the angle between the test hanger 19 and the inner wall of the test pipe section 15 by the angle holder 18, thereby indirectly simulating the angle of the gas-solid two-phase flow impacting the pipeline, so as to perform a pipeline erosion simulation test.

[0032] In specific implementation, the inner wall of the test pipe section 15 is provided with multiple sets of fixings, which correspond to multiple test hanging pieces 19 one by one; the fixings include fixing screws 17, angle clamps 18 and mounting screw holes 21; openings are provided on the angle clamps 18 and the test hanging pieces 19; the fixing screws 17 pass through the openings on the angle clamps 18 and the test hanging pieces 19 and are embedded in the mounting screw holes 21. Multiple test hanging pieces 19 are provided on the inner wall of the test pipe section 15, and the multiple test hanging pieces 19 are distributed along the circumferential direction of the test pipe section 15, and the angles between each test hanging piece 19 and the inner wall of the test pipe section 15 are the same or different.

[0033] In one embodiment, 28 test coupons 19 are disposed on the inner wall of the test pipe section 15 , and the 28 test coupons 19 are divided into two coupon groups, each group having 14 test coupons 19 . Figure 4 FIG. 2 shows a test coupon arrangement diagram in which 28 test coupons 19 are arranged on the inner wall of the test pipe section 15. Figure 4As shown, two groups of coupons are symmetrically arranged in the test pipe section 15, and there is a first interval and a second interval between the two groups of coupons. The first interval corresponds to an arc angle of 30° in the test pipe section 15, and the second interval corresponds to an arc angle of 96° in the test pipe section 15. In the coupon group, there is a third interval between two adjacent coupons, and the third interval corresponds to an arc angle of 9° in the test pipe section 15. Under this arrangement, the angles between each test coupon 19 and the inner wall of the test pipe section 15 are the same. During specific operation, the user can select angle holders and coupon numbers of appropriate angles according to actual needs, and the angles between each test coupon 19 and the inner wall of the test pipe section 15 are the same or different. This device can simultaneously carry out erosion test research under multiple variable conditions, such as test coupons 19 of different materials, different angles, etc., and can realize one-time installation to complete multiple groups of tests. Specifically, 28 angle holders are arranged in the test pipe section of the present application, corresponding to a maximum of 28 test coupons that can be hung, and the test range is large. The test hanger 19 is a pipe column or pipeline steel. The minimum adjustable angle of the angle holder 18 is 1°, so the device can perform small erosion angle experiments and the angle is easily controlled.

[0034] In another embodiment of the present invention, Figure 5 As shown, Figure 5 The schematic diagram of the structure of the gas-solid separator 25 in this embodiment is shown, and the gas-solid separator 25 includes a fluid inlet end 26, a nylon net 27, a steel 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 hose a24 through the fluid inlet end 26, one end of the steel hose b28 is connected to the exhaust pipe 29, and the other end is connected to the exhaust gas receiving device. The exhaust pipe 29 is fixed to the top of the gas-solid separator 25 and connected to the inside of the gas-solid separator 25. The nylon net 27 is placed at the connection between the steel 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 set on the sand discharge port 30.

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

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

[0037] The test hanger 19 is installed on the test hanger installation screw hole 21 on the inner wall of the test pipe section 15 through the fixing screw 17 and the angle holder 18 according to the test requirements, and the test pipe 15 is correctly installed. The control system 35 is turned on, and the fan motor 1 controls the fan 2 to generate airflow, which flows through the main steel pipe 33 through the feeding system 7, and the sand is merged into the main steel pipe 33 through the feeding port 12 to form a gas-solid two-phase flow with the airflow; the gas-solid two-phase flow flows through the organic glass tube 13 to the test pipe section 15 in the heating system 14, and impacts the test hanger 19; in order to simulate the actual temperature downhole, the heating belt 23 can be adjusted by the temperature controller 16 to heat the test pipe section 15; the gas-solid two-phase fluid finally enters the gas-solid separator 25 from the fluid inlet end 26 through the steel hose a24 for gas-solid separation, and the generated exhaust gas is discharged from the steel hose b28 through the exhaust pipe 29, and the sand is stored at the bottom of the gas-solid separator 25.

[0038] The patch-type gas-solid two-phase erosion test device provided in the present application indirectly simulates the angle of the gas-solid two-phase flow impacting the pipeline by adjusting the angle of the test hanging piece 19 and the test pipe section 15 through the angle holder 18, so as to carry out the pipeline erosion simulation test. Compared with the traditional erosion test device, the 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 minimum adjustable number of the angle holder 18 in the present application is 1°, so the device can be used for small erosion angle tests and the angle is easy to control. In addition, the device can carry out multiple groups of tests at the same time, and the layout method in the pipe is closer to reality and more accurate; when adding materials, an active one-way sand adding method is adopted to avoid the phenomenon of sand backblowing at the sand adding port in the conventional sand adding method, and at the same time, a plexiglass tube 13 is set on the main pipe section to observe the internal flow field, so as to realize the visualization of the flow field in the pipeline; the whole 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 method for related research work on erosion conditions during oil and gas well production, gas storage well injection and production, and pipeline transportation.

[0039] In order to enable those skilled in the art to more clearly understand the present invention, an in-tube patch-type gas-solid two-phase erosion device and a method of using the present invention are now described in detail through the following embodiments.

[0040] Example 1

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

[0042] Take two P110 test coupons and install them on the test coupon mounting screw holes on the test pipe section through fixing screws and 4° angle holders according to the test requirements. Install the test pipeline correctly, check whether the pipeline is well connected, and whether the valves and switches are in the correct position required by the test; connect the power through the control cabinet, turn on the fan, adjust the flow control valve until the flow meter reading reaches the flow corresponding to the test required flow rate of 8m / s, turn on the heating system to heat the test pipe section to the test required temperature of 80℃, after the flow meter reading and the temperature controller reading are stable, turn on the speed regulating motor of the feeding device and use the control cabinet to adjust to the sand feeding speed required for the test, adjust the feeding valve to the sand feeding amount required for the test of 0.001kg / s, and start the test; start the timing, pay attention to the on-site situation at all times, make emergency preparations, conduct the test according to the test design time, and do post-processing on the coupons after the test. After the test, close the feeding valve first, then turn off the heating system, speed regulating motor and fan in turn, and finally turn off the main power supply on the control cabinet. After all the equipment is turned off and safety is confirmed, remove the test pipe section and proceed to the next stage.

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

[0044] Embodiment 2:

[0045] Working condition 2: 130℃, impact angle 7°, casing material N80, flow rate 12m / s, sand amount 0.002kg / s.

[0046] Take two N80 test coupons and install them on the test coupon mounting screw holes on the test pipe section through fixing screws and 7° angle holders according to the test requirements. Install the test pipeline correctly, check whether the pipeline is well connected, and whether the valves and switches are in the correct position required by the test; connect the power through the control cabinet, turn on the fan, adjust the flow control valve until the flow meter reading reaches the flow corresponding to the test required flow rate of 12m / s, turn on the heating system to heat the test pipe section to the test required temperature of 130℃, after the flow meter reading and the temperature controller reading are stable, turn on the speed regulating motor of the feeding device and use the control cabinet to adjust to the sand feeding speed required for the test, adjust the feeding valve to the sand feeding amount required for the test of 0.002kg / s, and start the test; start the timing, pay attention to the on-site situation at all times, make emergency preparations, conduct the test according to the test design time, and do post-processing on the coupons after the test. After the test, close the feeding valve first, then turn off the heating system, speed regulating motor and fan in turn, and finally turn off the main power supply on the control cabinet. After all the equipment is turned off and safety is confirmed, remove the test pipe section and proceed to the next stage.

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

[0048] Embodiment 3:

[0049] Working condition 3: 160℃, impact angles 1°, 7°, 10°, casing materials P110, N80, flow rate 10m / s, sand quantity 0.002kg / s.

[0050] Take the corresponding number of P110 and N80 test coupons and install them on the test coupon mounting screw holes on the test pipe section through fixing screws and 1°, 7°, and 10° angle holders according to the test requirements. Install the test pipeline correctly, check whether the pipeline is well connected, and whether the valves and switches are in the correct position required by the test; connect the power supply through the control cabinet, turn on the fan, adjust the flow control valve until the flow meter reading reaches the flow rate corresponding to the test requirement of 10m / s, turn on the heating system to heat the test pipe section to the test required temperature of 160℃, and wait for the flow to reach the required flow rate. After the meter readings and the temperature controller readings are stable, turn on the speed regulating motor of the feed device and use the control cabinet to adjust it to the sand adding speed required for the test, adjust the feed valve to the sand feeding amount required for the test of 0.002kg / s, and start the test; start the timer, always pay attention to the on-site situation, make emergency preparations, conduct the test according to the test design time, and post-process the hanging piece after the test. After the test, first close the feed valve, then turn off the heating system, speed regulating motor and fan in turn, and finally turn off the main power supply on the control cabinet. After all the equipment is turned off and safety is confirmed, remove the test pipe section and proceed to the next stage.

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

[0052] It can be seen that the in-tube patch-type gas-solid two-phase erosion test device provided by the present application indirectly simulates the angle of the gas-solid two-phase flow impacting the pipeline by adjusting the angle of the test hanging piece and the test pipe section through the angle holder, so as to conduct a pipeline erosion simulation test. From Examples 1-3, it can be seen that the present device can simultaneously carry out erosion test research under multiple variable conditions, such as different materials, different angles, etc., and can complete multiple groups of tests in one installation. This is because 28 angle holders are provided in the test pipe section of the present application, corresponding to a maximum of 28 test hanging pieces that can be hung, and the test range is relatively large. Compared with the traditional nozzle-type erosion test device, the in-tube patch-type gas-solid two-phase erosion test device in the present application adopts the method of in-tube cloth, which is closer to reality and more accurate. In addition, the in-tube patch-type gas-solid two-phase erosion device uses a temperature-controllable resistance wire to heat the test pipe section, and the temperature environment required for the test is accurately controlled, which can be used for tests with strict temperature conditions. The device has a high degree of automation, and the control cabinet is used to almost realize the automation of the test; the test device is fully functional, reasonably priced, and has good economy, and can meet the test requirements under various working conditions.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0054] For the method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the order of the actions described, because according to the present invention, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and components involved are not necessarily required by the present invention.

[0055] The above is a detailed introduction to an in-tube patch-type gas-solid two-phase erosion test device and a method of use provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technicians in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An in-tube patch type gas-solid two-phase erosion test device, characterized in that: The device comprises: 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 via pipelines; The heating system includes a test pipe section, a heating tape, a temperature controller and a plurality of test coupons; Wherein, the temperature controller is on the test pipe section, the heating belt is wound on the outer wall of the test pipe section, and the heating belt is connected to the temperature controller; A plurality of the test hanging plates are arranged on the inner wall of the test pipe section, and the plurality of the test hanging plates are distributed along the circumferential direction of the test pipe section, and the angle between each of the test hanging plates and the inner wall of the test pipe section is the same or different.

2. The device according to claim 1, characterized in that The inner wall of the test pipe section is provided with a plurality of sets of fixing parts, and the plurality of sets of fixing parts correspond one by one to the plurality of test hanging pieces; The fixing member comprises a fixing screw, an angle holder and a mounting screw hole; the angle holder and the test hanging plate are provided with openings; the fixing screw passes through the openings on the test hanging plate and the angle holder and is embedded in the mounting screw hole.

3. The device according to claim 1, characterized in that The multiple test hanging plates include two groups of hanging plate groups, which are symmetrically arranged in the test pipe section, and there is a first interval and a second interval between the two groups of hanging plate groups. The first interval corresponds to an arc angle of 30° in the test pipe section, and the second interval corresponds to an arc angle of 96° in the test pipe section.

4. The device 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 pipe section is 9°.

5. The device according to claim 3 or 4, characterized in that There are 28 test coupons.

6. The device according to claim 1, characterized in that The test coupons are pipe columns and pipeline steels.

7. The device according to claim 1, characterized in that The heating tape is a temperature-controllable resistance wire.

8. A method for using an in-tube patch-type gas-solid two-phase erosion test device, applied to the device according to any one of claims 1 to 7, the device comprising: The control system, the gas supply system, the feeding system, the heating system and the gas-solid separator are characterized in that the use method comprises: S1. Fixing a plurality of test coupons on the inner wall of the test pipe section, wherein the plurality of test coupons are distributed along the circumferential direction of the test pipe section, and the angles between each of the test coupons and the inner wall of the test pipe section are the same or different; S2. Open the gas supply system and the material supply system through the control system to input gas-solid two-phase into the test pipe section; the gas-solid two-phase is separated in the gas-solid separator.

9. The method according to claim 8, characterized in that In S1, the steps are also included: The angle between the test coupon and the inner wall of the test pipe section is adjusted, and the angle is adjusted by at least 1° each time.

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