Simulation test device for measuring dynamic corrosion of stable light hydrocarbon and use method of simulation test device

Abstract

The invention discloses a stable light hydrocarbon dynamic corrosion measurement simulation test device and a use method thereof. The device comprises a test bin and a temperature control unit for providing temperature for the test bin, and the test bin is arranged in the temperature control unit; a pressure control unit is also arranged on the test bin and is used for providing required pressure for the test bin; the pressure control unit comprises a liquid inlet pipeline and a liquid outlet pipeline, the liquid inlet pipeline and the liquid outlet pipeline both extend into the test bin, the free end of the liquid inlet pipeline is close to the top of the test bin, and the free end of the liquid outlet pipeline is close to the bottom of the test bin; when the simulation test device is used, a to-be-tested sample is arranged between the liquid inlet pipeline and the liquid outlet pipeline, and the device can completely reproduce process conditions of a production field and accurately pre-judge the corrosion process and degree of sulfide in a light hydrocarbon product on the inner wall of a storage tank, so that response measures can be taken in time.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of test equipment development, and relates to a stable light hydrocarbon dynamic corrosion determination simulation test device and a use method thereof. BACKGROUND

[0002] In the process of stable light hydrocarbon production and storage in an oil field, it is necessary to monitor the process and degree of sulfide corrosion on the pipeline wall and the inner wall of the storage tank at any time. At present, the sample is taken back to the laboratory, the pretreated copper sheet is hung in the pressure container, and the copper sheet corrosion test method of petroleum products is used to test the copper sheet under the set temperature and pressure for about three hours. The copper sheet is compared with the standard color plate to evaluate the discoloration of the copper sheet and determine the corrosion level. This method uses copper sheet, which is different from the metal material actually used in the production site. Moreover, the test process is a static analysis, and the time is only three hours, which cannot reproduce the production process conditions. The analysis result of this method is not accurate, and the corrosion level of the test report is sometimes not high, but the inner wall of the storage tank is found to be severely corroded during maintenance. Therefore, the pipeline wall and the inner wall of the storage tank cannot be effectively evaluated in the actual dynamic production. SUMMARY

[0003] In view of the problems in the prior art, the present application provides a stable light hydrocarbon dynamic corrosion determination simulation test device and a use method thereof, so as to solve the problem that the prior art cannot effectively evaluate the corrosion of the pipeline wall and the inner wall of the storage tank in the actual dynamic production.

[0004] The present application is realized by the following technical solutions:

[0005] A stable light hydrocarbon dynamic corrosion determination simulation test device, comprising a test bin for loading a test liquid, and a temperature control unit for providing a temperature for the test bin, the test bin being arranged inside the temperature control unit; a pressure control unit is further arranged on the test bin, and the pressure control unit is used to provide the required pressure for the test bin; the pressure control unit comprises an inlet pipeline and an outlet pipeline, both of which extend to the inside of the test bin, and the free end of the inlet pipeline is arranged close to the top of the test bin, and the free end of the outlet pipeline is arranged close to the bottom of the test bin; when the simulation test device is used, the sample to be tested is arranged between the inlet pipeline and the outlet pipeline.

[0006] Preferably, the pressure control unit further comprises a pressure boosting device, and the inlet pipeline and the outlet pipeline are connected with the pressure boosting device.

[0007] Preferably, a sample fixing member is arranged on the test bin, and when the simulation test device is used, the sample to be tested is fixed on the sample fixing member.

[0008] Preferably, three said sample fixing members are arranged in the test chamber.

[0009] Preferably, a liquid adding port is further arranged on the test chamber.

[0010] Preferably, a safety valve is further arranged on the test chamber.

[0011] Preferably, a liquid discharging port is further arranged on the test chamber.

[0012] Preferably, the free end of the liquid inlet pipeline is higher than the free end of the liquid outlet pipeline.

[0013] Preferably, the liquid inlet pipeline and the liquid outlet pipeline are both stainless steel pipelines.

[0014] The use method of the above-mentioned stable light hydrocarbon dynamic corrosion measurement simulation test device comprises the following steps:

[0015] S: adding test liquid into the test chamber, and placing the sample to be tested in the test chamber, and making the sample to be tested between the liquid inlet pipeline and the liquid outlet pipeline;

[0016] S: starting the temperature control unit and the pressure control unit, setting the test value to be consistent with the field working condition, and starting the test.

[0017] Compared with the prior art, the present application has the following beneficial technical effects:

[0018] The application discloses a kind of stable light hydrocarbon dynamic corrosion determination simulation test device, wherein, test bin is used as core test component, for loading test liquid, and be arranged in temperature control unit inside, for controlling the temperature inside test bin when testing, while pressure control unit is connected on test bin, for controlling the pressure inside test bin when testing, by temperature control unit and pressure control unit, the device can simulate the temperature and pressure conditions in actual production, so that corrosion evaluation is closer to real situation, in addition, the pressure control unit includes liquid inlet pipeline and liquid outlet pipeline, the liquid inlet pipeline and liquid outlet pipeline are all extended to the inside of the test bin, and the free end of the liquid inlet pipeline is close to the top of test bin Setting, the free end of the liquid outlet pipeline is close to the bottom of test bin Setting, so that pressure control unit extracts test liquid from the bottom of test bin, and injects test liquid from the top of test bin, the liquid in the whole test bin is in dynamic circulation state, when using the simulation test device, the sample to be tested is arranged between the liquid inlet pipeline and liquid outlet pipeline, here, can make test liquid when flowing, flush the surface of sample to be tested, to effectively simulate the flushing process of fluid flow in pipeline to pipeline, while combining temperature control unit and pressure control unit effectively simulate actual working condition in field, can effectively evaluate the corrosion condition of pipeline wall and inner wall of storage tank in actual dynamic production.The dynamic simulation experiment device provided by the application can completely reproduce the process conditions in production field, accurately predict the process and degree of sulfide corrosion in light hydrocarbon product to inner wall of storage tank, so as to take timely measures, dynamic corrosion monitoring can be used to monitor the corrosion condition of medium, at any time, if sudden change of corrosion rate is found, system will be checked immediately, problem is identified in time, and major accident is prevented from happening;In addition, dynamic corrosion monitoring can accurately master the corrosion rate when equipment is normally operated, can predict the service life of equipment, and guarantee safety production;Finally, dynamic corrosion monitoring can improve equipment operating state, improve the reliability of equipment, prolong operating cycle, shorten parking repair time, and create greater economic benefits.Dynamic corrosion monitoring technology can also make device run under optimal conditions, guarantee the safety of equipment, guarantee the safety of operator, and reduce pollution to environment.

[0019] Further, the pressure control unit further comprises a pressure boosting device, and the liquid inlet pipeline and the liquid outlet pipeline are connected with the pressure boosting device. Through the pressure boosting device, the fluid pressure in the liquid inlet pipeline and the liquid outlet pipeline can be accurately controlled, so as to ensure that the pressure environment in the test chamber meets the test requirements. The pressure boosting device can adjust the output pressure in real time according to the needs, ensuring the stability and repeatability of the pressure during the test. In many industrial applications, such as oil and gas gathering and transportation, chemical production, etc., the pressure in the pipeline and storage tank is dynamically changing. Through the pressure boosting device, the simulation test device can simulate the pressure changes in these actual working conditions, so as to more accurately evaluate the corrosion performance of the test sample in the real working environment. Due to the introduction of the pressure boosting device, the simulation test device can cover a wider pressure range, thereby adapting to the corrosion test requirements under different pressure conditions. This not only improves the universality of the test device, but also provides researchers with a wider research space. The pressure boosting device is usually equipped with a safety valve and an overpressure protection device, which can automatically release pressure when the pressure exceeds the set value, ensuring the safety of the test process. At the same time, the stable operation of the pressure boosting device also ensures the stability and reliability of the pressure during the test. Through the integration with the pressure boosting device, the test personnel can more conveniently adjust and control the pressure parameters during the test process, and in combination with the automatic control system, the test process can be automatically operated and data recorded, improving the test efficiency and accuracy.

[0020] Further, the test chamber is provided with a test sample fixing member. When using the simulation test device, the test sample is fixed on the test sample fixing member. The test sample fixing member can ensure that the test sample maintains a stable position and posture during the test, preventing it from moving or deforming due to liquid flow or other factors, which helps to reduce test errors caused by changes in the position of the test sample, and improves the accuracy and reliability of the test results. The stability of the test sample fixing member can prevent the test sample from accidentally falling off or breaking under extreme conditions such as high pressure and high temperature, which helps to ensure the safe performance of the test process and reduce safety accidents and losses caused by test sample problems. Through the standardized design and use of the test sample fixing member, the installation position and posture of the test sample in each test can be kept consistent, which helps to improve the repeatability and comparability of the test, so that the test results of different batches or different time points have higher reference value.

[0021] Further, the test chamber is provided with three sample holders, and testing multiple samples at the same time can greatly reduce the total time required for the test. Compared with testing each sample separately, testing three samples at the same time can be done in parallel, thereby saving a lot of time. By testing three identical samples at the same time, multiple sets of data can be obtained, which have higher comparability and statistical significance between them. Multiple sets of data can better reflect the stability and reliability of the test results, and provide a more solid foundation for subsequent corrosion evaluation and analysis. In some cases, it may be necessary to simulate the corrosion conditions of the inner walls of pipelines and storage tanks under different positions or different conditions. By providing three sample holders, different conditions can be simulated in the test chamber. For example, the corrosion environment at different positions in the pipeline can be simulated by changing the positions and angles of the three sample holders. Different sample holders can be designed to accommodate different sizes and types of samples to be tested. In this way, even in the same test, different types of samples such as samples of different materials, different structures or different thicknesses can be tested. By testing three samples at the same time, the reliability and accuracy of the test results can be better verified. If the test results of the three samples are similar or consistent, these results will be more convincing. In the process of batch production and quality control, multiple samples need to be tested at the same time. By providing multiple sample holders, the needs of batch testing can be met, ensuring the stability and consistency of product quality.

[0022] Further, the test chamber is provided with a liquid inlet, which is designed to facilitate the addition or replacement of test liquid during the test. Without the need to disassemble the entire test chamber or perform complex operations, the convenience and efficiency of the test are improved. Through the liquid inlet, the types, concentrations or temperatures of the test liquid and other parameters can be flexibly adjusted to meet different test requirements. This provides researchers with more test space and more possibilities. The liquid inlet can be connected to the monitoring system to monitor the state of the test liquid in real time, such as liquid level, flow rate, etc. According to the monitoring data, the test personnel can adjust the liquid addition amount or liquid addition speed in a timely manner to ensure the stability and accuracy of the test conditions. The size and shape of the liquid inlet can be designed according to the test requirements. For example, for tests that require a large amount of liquid addition, a larger liquid inlet can be designed; for tests that require precise control of the liquid addition amount, flow meters or control valves and other equipment can be installed. Through the precise control of the liquid inlet, the waste and pollution of the test liquid can be reduced. At the same time, the negative impact on the environment can also be reduced.

[0023] Further, the test chamber is also provided with a safety valve. The safety valve can monitor the pressure in the test chamber and automatically open when the pressure exceeds the preset safety value, releasing part of the fluid or gas to reduce the system pressure. This helps to prevent dangerous situations such as damage or explosion of the test equipment caused by excessive pressure. By releasing the excessive pressure in time, the safety valve can protect the equipment and pipelines in the test chamber from damage, and it can also reduce the potential harm to the test personnel caused by sudden pressure rise, ensuring the safety of the test process. The presence of the safety valve makes the test process more stable and reliable. In the test process, even if abnormal conditions cause the pressure to rise, the safety valve can respond quickly and release the pressure, thereby avoiding test interruption or failure. The preset safety value of the safety valve can be adjusted according to different test requirements. This makes the simulation test device adaptable to a wider range of test conditions and meets the corrosion testing needs of different industries or different materials. The safety valve is usually designed with a structure that is easy to install, disassemble and maintain, which allows test personnel to easily check, repair and replace the safety valve during the test process, ensuring that it is always in good working condition.

[0024] Further, the test chamber is also provided with a safety valve. The safety valve can monitor the pressure in the test chamber and automatically open when the pressure exceeds the preset safety value, releasing part of the fluid or gas to reduce the system pressure. This helps to prevent dangerous situations such as damage or explosion of the test equipment caused by excessive pressure. By releasing the excessive pressure in time, the safety valve can protect the equipment and pipelines in the test chamber from damage, and it can also reduce the potential harm to the test personnel caused by sudden pressure rise, ensuring the safety of the test process. The presence of the safety valve makes the test process more stable and reliable. In the test process, even if abnormal conditions cause the pressure to rise, the safety valve can respond quickly and release the pressure, thereby avoiding test interruption or failure. The preset safety value of the safety valve can be adjusted according to different test requirements. This makes the simulation test device adaptable to a wider range of test conditions and meets the corrosion testing needs of different industries or different materials. The safety valve is usually designed with a structure that is easy to install, disassemble and maintain, which allows test personnel to easily check, repair and replace the safety valve during the test process, ensuring that it is always in good working condition.

[0025] Further, the test chamber is made of transparent material, which allows the tester to directly observe the inside of the test chamber, such as the flow state of light hydrocarbons, the progress of corrosion reaction, etc. This visual monitoring can realize real-time and intuitive understanding of the test process, which helps to find abnormal conditions or record key data in time. By observing the actual situation inside the test chamber, the tester can more accurately judge the test results, for example, they can observe the rate of corrosion reaction, the generation of corrosion products, etc., so as to more accurately evaluate the dynamic corrosion performance of light hydrocarbons. Since the test chamber is transparent, the tester can observe and monitor without opening the test chamber, which avoids the interference of impurities or pollutants introduced by opening the test chamber on the test results, improving the accuracy and reliability of the test. Through the transparent test chamber, the tester can directly take pictures or videos of the test process, record the test phenomena and data, which can be conveniently used for internal discussion, report writing or sharing with other researchers, promoting scientific research exchange and cooperation. The transparent test chamber makes it possible to find and handle abnormal conditions in the test process in time, thereby reducing the number of interruptions and restarts in the test, which helps to improve the efficiency of the test and reduce the cost of the test.

[0026] Further, the liquid inlet pipeline and the liquid outlet pipeline are both made of stainless steel pipeline. Stainless steel pipe has excellent corrosion resistance and can resist the corrosion of various chemicals such as acid, alkali and salt, which makes the stainless steel pipeline maintain long-term stable use performance when conveying corrosive liquid, reduces the risk of leakage and damage caused by corrosion. The service life of stainless steel pipe is long, which reduces the frequency of maintenance and replacement of pipeline and reduces the operating cost of enterprises. Stainless steel pipe has high tensile strength and yield strength, which can withstand large pressure and bending stress. At the same time, its density is smaller, which is lighter than traditional steel pipe material, convenient for transportation and installation. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 The structure diagram of the stable light hydrocarbon dynamic corrosion determination simulation test device in the present application.

[0029] Wherein: 1, test bin, 2, temperature control unit, 21, liquid crystal display, 22, silicon controlled temperature controller, 23, power switch, 24, drain valve, 3, pressure control unit, 31, liquid inlet pipeline, 32, liquid outlet pipeline, 33, booster, 34, turbine, 35, pressure relief valve, 4, sample fixing part, 41, fixed part, 42, hanging part, 5, liquid inlet, 6, safety valve, 7, liquid outlet, 8, sample to be tested. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0032] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is used, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0035] In the description of the embodiments of the present application, it also needs to be explained that, unless explicitly specified and limited, if the terms "arrange", "install", "connect", "connect" appear, they should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] The present application will be further described in detail below in combination with the drawings:

[0037] The present application is realized by the following technical solutions:

[0038] As shown in Figure 1 The present application provides a stable light hydrocarbon dynamic corrosion determination simulation test device, which comprises a test bin 1 and a temperature control unit 2 for providing temperature for the test bin 1, the test bin 1 is arranged inside the temperature control unit 2; the test bin 1 is also provided with a pressure control unit 3, the pressure control unit 3 is used for providing the required pressure for the test bin 1; the pressure control unit 3 comprises a liquid inlet pipeline 31, a liquid outlet pipeline 32 and a pressure increasing device 33, the liquid inlet pipeline 31 and the liquid outlet pipeline 32 are connected with the pressure increasing device 33, the liquid inlet pipeline 31 and the liquid outlet pipeline 32 extend to the inside of the test bin 1, and the free end of the liquid inlet pipeline 31 is arranged close to the top of the test bin 1, the free end of the liquid outlet pipeline 32 is arranged close to the bottom of the test bin 1; when the simulation test device is used, the sample to be tested is arranged between the liquid inlet pipeline 31 and the liquid outlet pipeline 32.

[0039] In a preferred embodiment, the test bin 1 is provided with a sample fixing piece 4, and when the simulation test device is used, the sample to be tested is fixed on the sample fixing piece 4. Further, three sample fixing pieces 4 are arranged in the test bin 1.

[0040] In addition, in order to facilitate the addition of liquid, the test bin 1 is also provided with a liquid inlet 5, and in order to consider safety, the test bin 1 is also provided with a safety valve 6. In order to facilitate the drainage, the test bin 1 is also provided with a liquid outlet 7. At the same time, the free end of the liquid inlet pipeline 31 is higher than the free end of the liquid outlet pipeline 32. The test bin 1 can be a single-sided transparent pressure-resistant material.

[0041] In a more preferred scheme, the liquid inlet pipeline 31 and the liquid outlet pipeline 32 are both stainless steel pipelines.

[0042] In a specific example, the temperature control unit 2 can be a temperature-controlled water bath, which is provided with a liquid crystal display 21, a silicon-controlled temperature controller 22 and a power switch 23, and is additionally provided with a liquid discharge valve 24 for facilitating use.

[0043] Further, in a feasible embodiment, the sample fixing member 4 can include a fixing portion 41 and a hanging portion 42, the fixing portion 41 is detachably arranged at the top of the test chamber 1, and the free end of the hanging portion 42 is provided with a limiting member to limit the fluid from falling off the sample fixing member 4 when the sample to be tested moves during the flow process.

[0044] In the embodiment, the fixing portion 41 can be a nut, which is detachably arranged on the test chamber 1 by a screw arranged on the nut. Meanwhile, a gasket is arranged on the nut to make the connection more firm and the sealing performance better.

[0045] In a feasible embodiment, the pressure boosting device 33 can be a miniature explosion-proof adjustable gas-liquid booster pump, which realizes the pumping and backflow of the liquid through a turbine 34, and a pressure relief valve 35 is further arranged on the pipeline of the liquid outlet pipeline 32.

[0046] In addition, the application further discloses a use method of the stable light hydrocarbon dynamic corrosion measurement simulation test device.

[0047] S1: adding a test liquid into the test chamber 1 and placing the sample to be tested 8 inside the test chamber 1, so that the sample to be tested 8 is located between the liquid inlet pipeline 31 and the liquid outlet pipeline 32;

[0048] S2: turning on the temperature control unit 2 and the pressure control unit 3, setting the test value to be consistent with the field working condition, and starting the test.

[0049] Further, the temperature control unit 2 can be a temperature-controlled water bath, which is provided with a liquid crystal display 21, a silicon-controlled temperature controller 22 and a power switch 23, and is additionally provided with a liquid discharge valve 24 for facilitating use.

[0050] S1, close the single-side transparent pressure-resistant experimental bomb liquid discharge valve, unscrew the sample adding port nut on the experimental bomb, fill the experimental bomb with the sample, and then tighten the nut;

[0051] S2, unscrew the two hanging test piece nuts on the experimental bomb, hang the test pieces in the direction specified by the arrow, and then tighten the nuts;

[0052] S3, turn on the temperature-controlled water bath power switch, and set the temperature to the required temperature of the sample;

[0053] S4, after reaching the set temperature, start the miniature explosion-proof gas-liquid booster pump, adjust the pressure to the pressure consistent with the sampling site, and record the start time of monitoring;

[0054] S5, 7 days later, the miniature explosion-proof gas-liquid booster pump is closed, the temperature-controlled water bath pot power is turned off, the experimental bomb is depressurized to normal pressure through the pressure relief valve on the pipeline, the test piece is taken out, and whether the surface changes or not is observed after treatment, and the mass change is calculated.

[0055] The device needs regular maintenance and care.

[0056] The application discloses a kind of stable light hydrocarbon dynamic corrosion determination simulation experimental device, simulate the working condition of production site, can be hung in experimental device to be tested piece, completely reproduce the pressure, temperature condition of production site, test piece and sample are placed in test bin 1, test bin 1 is placed in temperature control unit 2, according to the actual temperature of sample sampling point temperature control unit 2 temperature is set, start pressure control unit 3, not only can sample pressurization in test bin 1, but also can be realized " the side of test piece is hung to liquid flow direction " suspension, realize the pressure, temperature condition of completely simulating sampling site.Test bin 1 is also designed waste liquid discharge hole, for discharging sample after determination, test piece suspension nut lower end is designed special hook, guarantee test piece with liquid flow direction one side inclination without falling off, make monitoring result more accurate, special gasket on nut can guarantee sealing effect, in addition, test bin 1 is also designed safety valve 6, fully guarantee the safety of sample in test bin 1 during operation, temperature control unit 2 uses thyristor temperature controller, can guarantee sample temperature constant, inlet liquid pipeline 31 and outlet liquid pipeline 32 adopt stainless steel pressure pipeline, test bin 1, inlet liquid pipeline 31 and outlet liquid pipeline 32 pressure can reach 0.5MPa.Testing time is formulated according to actual situation of production site, can long time run, the application effectively solves the problem that corrosion rate laboratory determination cannot meet the site condition in stable light hydrocarbon production process, equipment is light, can be used in laboratory, also can be taken to production site and use, use range is wide, can improve monitoring result accuracy, better realize quality improvement and efficiency improvement.

[0057] The above are only preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stabilized light hydrocarbon dynamic corrosion measurement simulation test apparatus characterized by, The test chamber (1) for loading test liquid is arranged inside the temperature control unit (2) for providing temperature for the test chamber (1); The test chamber (1) is further provided with a pressure control unit (3) for providing required pressure for the test chamber (1); The pressure control unit (3) comprises a liquid inlet pipeline (31) and a liquid outlet pipeline (32), both of which extend to the inside of the test chamber (1), and the free end of the liquid inlet pipeline (31) is arranged near the top of the test chamber (1), and the free end of the liquid outlet pipeline (32) is arranged near the bottom of the test chamber (1); When the simulation test device is used, the test sample (8) is arranged between the liquid inlet pipeline (31) and the liquid outlet pipeline (32).

2. A stabilized light hydrocarbon dynamic corrosion measurement simulation test device according to claim 1, characterized in that, The pressure control unit (3) further comprises a pressure increasing device (33), and the liquid inlet pipeline (31) and the liquid outlet pipeline (32) are connected with the pressure increasing device (33).

3. The dynamic corrosion simulation test device for stable light hydrocarbons according to claim 1, characterized in that, The test chamber (1) is provided with a test sample fixing member (4), and when the simulation test device is used, the test sample is fixed on the test sample fixing member (4).

4. The apparatus of claim 3, wherein the apparatus is characterized by: Three test sample fixing members (4) are arranged in the test chamber (1).

5. The dynamic corrosion simulation test device for stable light hydrocarbons according to claim 1, characterized in that, The test chamber (1) is further provided with a liquid adding port (5).

6. The apparatus of claim 1, wherein the apparatus is a dynamic corrosion testing device for light hydrocarbons, and the apparatus further comprises a light hydrocarbon source. The test chamber (1) is further provided with a safety valve (6).

7. The apparatus of claim 1, wherein the apparatus is a dynamic corrosion testing device for light hydrocarbons, and the apparatus further comprises a light hydrocarbon source. The test chamber (1) is further provided with a liquid discharge port (7).

8. The apparatus of claim 1, wherein the apparatus is a dynamic corrosion testing device for light hydrocarbons, and the apparatus further comprises a light hydrocarbon source. The test chamber (1) is made of transparent material.

9. The apparatus of claim 1, wherein the apparatus is a dynamic corrosion testing device for light hydrocarbons, and the apparatus further comprises a light hydrocarbon source. The liquid inlet pipeline (31) and the liquid outlet pipeline (32) are both stainless steel pipelines.

10. A method of using a stabilized light hydrocarbon dynamic corrosion measurement simulation test apparatus according to any one of claims 1 to 9, characterized in that, The method comprises the following steps: S1: adding test liquid into the test chamber (1), and placing the test sample (8) inside the test chamber (1), and arranging the test sample (8) between the liquid inlet pipeline (31) and the liquid outlet pipeline (32); S2: turning on the temperature control unit (2) and the pressure control unit (3), and setting the test value to be consistent with the field working condition, and starting the test.

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