Pipeline damage working condition simulation test device for deepwater underwater production system

Abstract

The invention relates to the technical field of oil and gas pipeline transportation, in particular to a pipeline damage working condition simulation test device for a deepwater underwater production system. The water conveying mechanism is used for conveying liquid to the box body; the first simulation mechanism comprises a first pipeline and a leakage control assembly, the leakage control assembly is arranged on the box body, and the leakage control assembly is connected with the first pipeline; the second simulation mechanism comprises a second pipeline and a driving part, and the driving part is arranged on the second pipeline to drive the liquid in the box body to circularly flow in the box body and the second pipeline; the third simulation mechanism comprises a third pipeline and a detection piece, and the detection piece is used for detecting damage information of the third pipeline and temperature information of liquid; the gas conveying mechanism communicates with the first pipeline and the third pipeline so as to convey gas into the first pipeline and the third pipeline. Through linkage of the mechanisms, composite working conditions of liquid environment, liquid circulation, gas leakage and pipeline damage can be simulated at the same time, and the accuracy of test data of the simulation test device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil and gas pipeline transportation, and particularly relates to a pipeline damage working condition simulation test device for a deepwater underwater production system. BACKGROUND

[0002] The underwater production system is a core facility for marine oil and gas development, and is mainly used for collecting, processing and transporting seabed oil and gas. The pipeline for oil and gas transportation is a key component connecting the underwater production system and the land or the offshore platform, and undertakes the task of high-pressure and high-temperature oil and gas transportation. The pipeline is prone to leakage or structural damage due to long-term bearing of complex environments such as high pressure, corrosion and ocean current impact.

[0003] In the related art, a static water tank is provided, and the pipeline for oil and gas transportation is arranged in the static water tank to form an experimental platform simulating the pipeline arranged on the seabed. Specifically, the pipeline is placed at the bottom of the water tank, a defect is prefabricated on the pipeline through mechanical processing, the working condition of pipeline leakage is simulated in the static water tank, and the leaked gas of the pipeline is detected to determine the position of the pipeline leakage and the amount of the leaked gas.

[0004] However, the static water tank cannot simulate marine conditions, which affects the accuracy of the detection result of the experimental platform. SUMMARY

[0005] The embodiment of the present application provides a pipeline damage working condition simulation test device for a deepwater underwater production system, which can solve the problem that the static water tank in the prior art cannot simulate marine conditions and affects the accuracy of the detection result of the experimental platform.

[0006] The embodiment of the present application provides a pipeline damage working condition simulation test device for a deepwater underwater production system, which comprises:

[0007] a tank body;

[0008] a water conveying mechanism connected to the tank body, the water conveying mechanism being configured to convey liquid to the tank body;

[0009] a first simulation mechanism comprising a first pipeline and a leakage control assembly, part of the first pipeline being arranged in the tank body, the leakage control assembly being arranged on the tank body, and the leakage control assembly being connected to the first pipeline to control the gas leakage flow of the first pipeline;

[0010] a second simulation mechanism comprising a second pipeline and a driving member, the water inlet and the water outlet of the second pipeline being respectively connected to the two opposite sides of the tank body, and the driving member being arranged on the second pipeline to drive the liquid in the tank body to circulate in the tank body and the second pipeline;

[0011] The third simulation mechanism comprises a third pipeline and a detection member, part of the third pipeline is arranged in the box, and the detection member is used for detecting damage information of the third pipeline and temperature information of the liquid;

[0012] The gas conveying mechanism is in communication with the first pipeline and the third pipeline respectively, so as to convey gas into the first pipeline and the third pipeline.

[0013] In the pipeline damage working condition simulation test device for the deepwater underwater production system, optionally, the first simulation mechanism further comprises a communication pipe and a leakage pipe, the first pipeline is provided with a leakage hole, one end of the communication pipe is in communication with the leakage hole, the other end of the communication pipe is in communication with a leakage control assembly, one end of the leakage pipe is in communication with the leakage control assembly, and the other end of the leakage pipe is located in the box;

[0014] The leakage control assembly is configured to control the gas flow rate of the first pipeline flowing to the leakage pipe.

[0015] In the pipeline damage working condition simulation test device for the deepwater underwater production system, optionally, the other end of the communication pipe is provided with a plurality of gas outlets, the diameters of the plurality of gas outlets are different, the first simulation mechanism further comprises a plurality of communication hoses with different diameters and a plurality of leakage control assemblies, one end of the communication hose is provided corresponding to the gas outlet, and the other end of the communication hose is provided corresponding to the leakage control assembly.

[0016] In the pipeline damage working condition simulation test device for the deepwater underwater production system, optionally, the leakage control assembly comprises an electromagnetic valve, a gas flow meter and a needle valve group connected in sequence, the other end of the communication pipe is in communication with the electromagnetic valve, one end of the leakage pipe is in communication with the needle valve group, the electromagnetic valve is used to control the opening and closing of the leakage gas flowing from the first pipeline to the leakage pipe, the needle valve group is used for controlling the flow rate of the leakage gas of the leakage pipe, and the gas flow meter is used for detecting the leakage gas flow rate.

[0017] In the pipeline damage working condition simulation test device for the deepwater underwater production system, optionally, the first pipeline comprises a first pipe section and a second pipe section, the first pipe section is arranged in the box along the width direction of the box, the second pipe section is arranged on the box, one end of the second pipe section is located on one side in the width direction of the box and is in communication with one end of the first pipe section, the other end of the second pipe section is located on the other side in the width direction of the box and is in communication with the other end of the first pipe section, and the leakage hole is arranged on the first pipe section.

[0018] The gas conveying mechanism is in communication with the second pipe section, the first simulation mechanism further comprises a first pump body, the first pump body is arranged on the second pipe section, the first pump body is used for controlling the flow of the gas in the first pipe section and the second pipe section, the first pipeline is provided with a heat exchanger and a temperature detection member, the temperature detection member detects the temperature of the first pipeline, and the heat exchanger is used for controlling the temperature of the gas medium in the first pipeline.

[0019] In the pipeline damage working condition simulation test device for the deepwater underwater production system, optionally, the second simulation mechanism further comprises two flow generating special-shaped cylinders, flow passages for liquid flow are arranged in the two flow generating special-shaped cylinders, one end of the second pipeline is communicated with the box through the flow generating special-shaped cylinder of one of the two flow generating special-shaped cylinders, the other end of the second pipeline is communicated with the box through the flow generating special-shaped cylinder of the other of the two flow generating special-shaped cylinders, and the cross-sectional size of the flow generating special-shaped cylinder uniformly impacts the second pipeline in the direction from the end of the second pipeline to the box.

[0020] In the pipeline damage working condition simulation test device for the deepwater underwater production system, optionally, the third pipeline comprises a third pipe section and a fourth pipe section, the third pipe section is arranged in the box in the width direction of the box, the fourth pipe section is arranged on the box, one end of the fourth pipe section is located on one side in the width direction of the box and is communicated with one end of the third pipe section, the other end of the fourth pipe section is located on the other side in the width direction of the box and is communicated with the other end of the third pipe section, and the detection member is arranged on the third pipe section.

[0021] The gas conveying mechanism is communicated with the fourth pipe section, and the third simulation mechanism further comprises a second pump body, the second pump body is arranged on the fourth pipe section, and the second pump body is used for controlling the flow of the fluid medium in the third pipe section and the fourth pipe section.

[0022] In the pipeline damage working condition simulation test device for the deepwater underwater production system, optionally, the gas conveying mechanism comprises a gas storage tank, a gas conveying pipeline and a gas compressor, the gas storage tank is located on one side of the box, the gas compressor is communicated with the gas storage tank through the gas conveying pipeline, and a communication mechanism is arranged between the gas storage tank and the first pipeline and the third pipeline to communicate the gas storage tank with the first pipeline and the third pipeline.

[0023] In the pipeline damage working condition simulation test device for the deepwater underwater production system, optionally, the communication mechanism comprises a three-way piece, a first air pipe and a second air pipe, the three-way piece has a gas inlet, a first gas outlet and a second gas outlet, the gas outlet of the gas storage tank is communicated with the gas inlet of the three-way piece, the first gas outlet is communicated with the first pipeline through the first air pipe, and the second gas outlet is communicated with the third pipeline through the second air pipe.

[0024] A first pressure regulating valve for regulating the gas pressure is arranged on the first air pipe.

[0025] A second pressure regulating valve for regulating the gas pressure is arranged on the second air pipe.

[0026] In the pipeline damage working condition simulation test device for the deepwater underwater production system, optionally, a console and a frame are further included, the box and the console are arranged on the frame, and the console is connected with the leakage control assembly, the driving member, the water conveying mechanism and the gas conveying mechanism respectively.

[0027] The application provides a pipeline damage working condition simulation test device for a deepwater underwater production system, a box body provides unified installation and working space for each simulation mechanism, ensures stable liquid storage, avoids liquid overflow, and provides basic environmental support for underwater pipeline working condition simulation. The water delivery mechanism can flexibly control the injection amount and liquid level height of the liquid in the box body, and improve the working condition adaptability of the device. The first pipeline serves as a gas leakage carrier and can simulate the gas leakage scene of the underwater pipeline in combination with the liquid environment in the box body, which is close to the actual engineering working condition. The leakage control assembly can accurately adjust the leakage equivalent to simulate different leakage working conditions and provide diversified test conditions for verification of leakage detection technology and leakage treatment scheme.

[0028] Moreover, the second pipeline forms a circulating channel with the box body, and in combination with the power output of the driving member, the flow state (such as river flow and seawater flow) of the fluid around the pipeline and the impact effect on the second pipeline can be simulated. The third pipeline serves as a damage detection carrier and can simulate the damage state of the pipeline under the gas delivery working condition. The detection member can collect damage information in real time, and the sensitivity and accuracy of the damage detection technology can be directly verified to provide test data support for pipeline damage early warning and maintenance scheme optimization.

[0029] It should be noted that through linkage of each mechanism, the marine current generating environment, liquid circulation, gas circulation, gas-liquid mixed medium circulation, gas leakage, pipeline damage and composite working conditions under different temperatures and different pressures can be simulated at the same time, a plurality of key working conditions in actual pipeline operation are covered, the problem of single function of the traditional simulation device is solved, the comprehensiveness of test data is improved, and the cost and risk of pipeline engineering test are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate an embodiment consistent with the present application and, together with the description, serve to explain the principles of the application.

[0031] Figure 1 A scene schematic diagram of the pipeline damage working condition simulation test device for the deepwater underwater production system provided by the application is provided.

[0032] Figure 2 A partial enlarged view of the pipeline damage working condition simulation test device for the deepwater underwater production system provided by the application is provided.

[0033] Figure 3 A structure schematic diagram of a tee joint of the pipeline damage working condition simulation test device for the deepwater underwater production system provided by the application is provided.

[0034] Figure 4 A structure schematic diagram of a gas delivery mechanism of the pipeline damage working condition simulation test device for the deepwater underwater production system provided by the application is provided.

[0035] Reference Signs List:

[0036] 100, tank;

[0037] 200, first simulation mechanism; 210, first pipeline; 211, first pipe section; 212, second pipe section; 220, leakage control assembly; 221, electromagnetic valve; 222, gas flow meter; 223, needle valve group; 230, communication pipe; 231, gas outlet; 240, first pump body;

[0038] 300, second simulation mechanism; 310, second pipeline; 320, driving member; 330, flow-creating special-shaped cylinder;

[0039] 400, third simulation mechanism; 410, third pipeline; 411, third pipe section; 412, fourth pipe section; 420, second pump body;

[0040] 500, gas conveying mechanism; 510, gas storage tank; 520, gas compressor; 530, communication mechanism; 531, three-way piece; 532, first pressure regulating valve; 533, second pressure regulating valve;

[0041] 610, control console; 620, frame.

[0042] The specific embodiments have been shown and described in the foregoing drawings part, and will be described in more detail hereinafter. These drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to explain the inventive concept to one skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0043] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals represent like elements, unless the context dictates otherwise. The following exemplary embodiments described are not meant to be all inclusive or represent all aspects of the inventive concept. Rather, they are merely examples of apparatus and methods consistent with some aspects of the inventive concept as detailed in the appended claims.

[0044] The pipeline for simulating oil and gas transportation is arranged in a static water tank, thereby forming an experimental platform in which the pipeline is arranged on the seabed. Specifically, the pipeline is mainly placed at the bottom of the water tank, defects are prefabricated on the pipeline by machining, thereby simulating the working condition of pipeline leakage in the static water tank, and the leaked gas of the pipeline is detected, thereby judging the position of pipeline leakage and the amount of leaked gas. However, the static water tank cannot simulate the marine conditions, which affects the accuracy of the experimental platform detection results.

[0045] Therefore, the application provides a pipeline damage working condition simulation test device for a deepwater underwater production system.

[0046] The pipeline damage working condition simulation test device for the deepwater underwater production system provided by the embodiments of the application will be described below with reference to the drawings.

[0047] With reference to Figure 1 and Figure 4 The pipeline damage working condition simulation test device for the deepwater underwater production system provided by the embodiments of the application will be described below with reference to the drawings.

[0048] The water delivery mechanism is in communication with the box 100, and is used to deliver liquid to the box 100. The box 100 is a basic load-bearing component of the device, and provides a liquid storage space. One end of the water delivery mechanism is in communication with an external liquid source, and the other end is in communication with the box 100. The water delivery mechanism delivers liquid to the box 100, fills and replenishes the liquid in the box 100, and provides a basic environment for the second simulation mechanism 300.

[0049] The first simulation mechanism 200 includes a first pipeline 210 and a leakage control assembly 220. Part of the first pipeline 210 is arranged in the box 100, and the leakage control assembly 220 is arranged on the box 100. The leakage control assembly 220 is connected with the first pipeline 210 to control the gas leakage flow of the first pipeline 210. Part of the first pipeline 210 is located in the box 100 to contact the liquid, and part of the first pipeline 210 is located outside the box 100 to deliver gas. The first pipeline 210 can receive the gas delivered by the gas delivery mechanism 500 to serve as a carrier for gas leakage. The leakage control assembly 220 can adjust the gas leakage flow of the first pipeline 210 to simulate different degrees of pipeline gas leakage working conditions. The gas medium in the first pipeline 210 circulates under the action of an external driving force, and the temperature of the gas medium in the first pipeline 210 is controlled, so that the simulation working condition of the first pipeline 210 in the marine environment is better simulated.

[0050] The second simulation mechanism 300 comprises a second pipeline 310 and a driving member 320. The water inlet and outlet of the second pipeline 310 are communicated with the opposite sides of the tank 100 respectively. The driving member 320 is arranged on the second pipeline 310 to drive the liquid in the tank 100 to flow in the tank 100 and the second pipeline 310. The driving member 320 provides power to drive the liquid in the tank 100 to flow along the path of the tank 100 to the second pipeline 310 and then to the tank 100, thereby simulating the sea water flow in the sea and the condition of the sea water flow impacting the second pipeline 310.

[0051] The third simulation mechanism 400 comprises a third pipeline 410 and a detection member. Part of the third pipeline 410 is arranged in the tank 100. The detection member is used to detect the damage information of the third pipeline 410. The third pipeline 410 can receive the gas delivered by the gas delivery mechanism 500 as a carrier for simulating pipeline damage. The damage information (such as damage position, damage degree, gas-liquid leakage condition) of the third pipeline 410 is detected in real time to provide data support for pipeline damage assessment.

[0052] It can be understood that, by artificially manufacturing damage conditions by using the third pipeline 410, placing the third pipeline 410 in the tank 100, flowing the water flow, and using the detection member to detect the leakage or damage of the third pipeline 410 under the impact of the water flow, the detection member detects the damage of the third pipeline 410, thereby simulating the operation of the third pipeline 410 with different damages in the sea under the sea conditions, and detecting by using the detection member.

[0053] The gas delivery mechanism 500 is communicated with the first pipeline 210 and the third pipeline 410 respectively to deliver gas into the first pipeline 210 and the third pipeline 410. The gas delivery mechanism 500 can deliver gas to the first pipeline 210 and the third pipeline 410, perform the action of delivering gas into the first pipeline 210 and the third pipeline 410, and control the pressure, flow rate, start and stop of gas delivery.

[0054] Specifically, the water delivery mechanism is started to deliver liquid into the tank 100 until the liquid reaches a preset liquid level to cover the first pipeline 210 and the third pipeline 410 in the tank, thereby providing an environment for simulating the working condition of the underwater pipeline. Then, the driving member 320 of the second simulation mechanism 300 is started. Under the power of the driving member, the liquid in the tank 100 flows into the second pipeline 310 through the water inlet of the second pipeline 310, and then flows back to the tank 100 through the water outlet, thereby forming a liquid circulation to simulate the water flow environment in the actual working condition of the pipeline.

[0055] And, the gas delivery mechanism 500 is started to deliver gas with preset pressure and flow rate into the first pipeline 210 and the third pipeline 410. At the same time, the leakage control assembly 220 of the first simulation mechanism 200 is adjusted to control the gas leakage flow rate of the first pipeline 210, simulate different degrees of gas leakage conditions of the pipeline, such as micro-leakage, moderate leakage and serious leakage, so as to facilitate judging the leakage position and leakage condition of the first pipeline 210 according to different degrees of gas leakage conditions. In the gas delivery process, the detection piece of the third simulation mechanism 400 is started, the third pipeline 410 contains liquid medium, the detection piece detects the third pipeline 410 in real time, collects and analyzes the damage information (such as damage position, damage type and damage degree) of the third pipeline 410 under the condition of water flow impact, realizes simulation and detection of pipeline damage conditions, and realizes real-time detection of the leakage position and leakage amount of the liquid medium of the third pipeline 410 after damage.

[0056] The pipeline damage condition simulation and testing device for the deepwater underwater production system provided by the embodiment of the application provides a unified installation and working space for each simulation mechanism through the box 100, ensures stable liquid storage, avoids liquid overflow, and provides basic environmental support for underwater pipeline condition simulation. The water delivery mechanism can flexibly control the injection amount and liquid level height of the liquid in the box 100, and improve the working condition adaptability of the device. The first pipeline 210 serves as a gas leakage carrier, and can simulate the gas leakage scene of the underwater pipeline in combination with the liquid environment in the box 100, which is close to the actual engineering condition. The leakage control assembly 220 can accurately adjust the leakage flow rate, realize simulation of different leakage degrees, and provide diversified test conditions for verification of leakage detection technology and leakage treatment scheme.

[0057] And, the second pipeline 310 and the box 100 form a circulating channel, and in combination with the power output of the driving piece 320, the flow state (such as river flow and sea water flow) of the fluid around the pipeline and the impact effect on the second pipeline can be simulated. The third pipeline 410 serves as a damage detection carrier, and can simulate the damage state of the pipeline under the gas delivery condition. The detection piece collects damage information in real time, and can directly verify the sensitivity and accuracy of the damage detection technology, and provide test data support for optimization of pipeline damage early warning and maintenance scheme.

[0058] It should be noted that through linkage of each mechanism, the marine current generating environment, liquid circulation, gas circulation, gas-liquid mixed medium circulation, gas leakage, pipeline damage and composite conditions under different temperatures and different pressures can be simulated at the same time, a plurality of key conditions in actual pipeline operation are covered, the problem of single function of the traditional simulation device is solved, the comprehensiveness of test data is improved, and the cost and risk of pipeline engineering test are reduced.

[0059] Reference Figure 1 and Figure 2In some embodiments, the first simulation mechanism 200 further comprises a communication pipe 230 and a leakage pipe, the first pipe 210 is provided with a leakage hole, one end of the communication pipe 230 communicates with the leakage hole, the other end of the communication pipe 230 communicates with the leakage control assembly 220, one end of the leakage pipe communicates with the leakage control assembly 220, and the other end of the leakage pipe is located in the tank 100. The leakage control assembly 220 is configured to control the gas flow rate of the first pipe 210 flowing to the leakage pipe.

[0060] It can be understood that, on the basis of the original gas conveying function, the action of the gas in the first pipe 210 flowing out to the communication pipe 230 through the hole is added to provide an initial discharge path for gas leakage. The two ends of the communication pipe 230 respectively communicate with the leakage hole of the first pipe 210 and the leakage control assembly 220, which ensures that the leakage gas flows to the leakage control assembly 220 according to the preset path. The leakage pipe realizes the terminal discharge function of the leakage gas, so that the regulated leakage gas directly contacts the liquid in the tank 100, simulating the real underwater pipeline leakage scene.

[0061] Specifically, the gas conveying mechanism 500 conveys gas with a preset pressure and flow rate into the first pipe 210, and the gas stably flows in the first pipe 210 to provide a gas source basis for subsequent leakage simulation. The gas in the first pipe 210 flows out through the leakage hole in the pipe wall and enters the communication pipe 230 connected thereto. At this time, the communication pipe 230 serves as an intermediate channel to direct the gas discharged from the leakage hole to the leakage control assembly 220, avoiding direct diffusion of the gas into the liquid in the tank 100, and ensuring that the leakage path is controllable. The leakage control assembly 220 adjusts the regulating components (such as the opening of the throttle valve and the position of the valve core) inside itself according to the simulation requirements (such as simulating micro-leakage, moderate leakage or serious leakage), accurately controls the gas flow rate flowing in from the communication pipe 230, and selects the leakage amount that meets the test working conditions.

[0062] Moreover, the gas regulated by the leakage control assembly 220 flows into the tank 100 through the leakage pipe connected thereto. Since the other end of the leakage pipe is located in the tank 100 (and the tank 100 has been filled with liquid by the water conveying mechanism), the gas is discharged from the end of the leakage pipe into the liquid, forming phenomena such as gas bubbles, dissolution or diffusion, and completely simulating the real physical process of underwater pipeline gas leakage.

[0063] Through the above setting, the leakage hole can accurately control the initial leakage position, and the controllability of the leakage position is improved. The regulated leakage gas is directly discharged into the liquid in the tank 100, rather than directly discharged to the air, completely reproducing the real working condition of gas leakage to the liquid environment in the underwater pipeline, and improving the authenticity of the simulation results. The complete leakage simulation link of the gas conveying mechanism, the first pipeline, the leakage hole, the communication pipe, the control assembly, the leakage pipe and the liquid environment (tank) is constructed, the whole process controllable from gas supply to real leakage phenomenon is realized, and the problems of traditional simulation device such as unclear leakage path and low flow regulation accuracy are solved.

[0064] Moreover, by adjusting the combination of the leakage hole (aperture, position), the communication pipe 230, the leakage pipe (end form, depth) and the control assembly (flow parameter), different leakage positions, different leakage forms (such as direct leakage on the pipeline), different leakage amounts and different underwater depths of diversified pipeline leakage working conditions can be simulated, providing more comprehensive and more practical test conditions for verification of leakage detection technology and leakage treatment scheme, and improving the reference value of test data.

[0065] Referring to Figure 1 and Figure 2 In some embodiments, the other end of the communication pipe 230 is provided with a plurality of gas outlets 231, the diameters of the plurality of gas outlets 231 are different, the first simulation mechanism 200 further includes a plurality of communication hoses with different diameters and a plurality of leakage control assemblies 220, one end of the communication hose is provided corresponding to the gas outlet 231, and the other end of the communication hose is provided corresponding to the leakage control assembly 220.

[0066] It can be understood that by different diameters of the gas outlets 231, the action of shunting gas to the corresponding communication hose realizes the functions of gas shunting and initial flow grading, and under the same inlet pressure, the initial gas flow output by different gas outlets 231 is different due to different diameters of the gas outlets, providing a basic flow gradient for subsequent accurate regulation. The plurality of leakage control assemblies 220 respectively independently regulate the gas flow conveyed by the corresponding communication hose, realizing the function of independent regulation of multi-path gas flow, each leakage control assembly 220 can be individually set according to the test requirements, and does not interfere with each other, while covering the regulation requirements of different flow ranges.

[0067] Specifically, the gas delivery mechanism 500 delivers gas at a preset pressure to the first pipeline 210, and the gas flows into the communication pipe 230 through the leakage hole of the first pipeline 210. The gas entering the communication pipe 230 flows along the pipe body to the other end and is branched through a plurality of gas outlets 231 with different diameters. Due to the difference in diameters of the gas outlets, under the same inlet pressure, the initial gas flow rate of the gas outlet with a larger diameter is larger, and the initial flow rate of the gas outlet with a smaller diameter is smaller, forming a multi-gradient initial flow rate. The gas flowing out of each gas outlet 231 is delivered through the corresponding connecting flexible pipe with matching diameter. The flexible structure of the connecting flexible pipe can flexibly bypass other components (such as the second pipeline 310 and the third pipeline 410) in the box 100, ensuring stable conduction of the gas to the corresponding leakage control assembly 220. At the same time, the connecting flexible pipes with different diameters can fine-tune the initial flow rate through their own flow resistance (such as small-diameter flexible pipes further reducing the fluctuation of small-flow gas), improving the flow stability before entering the leakage control assembly 220.

[0068] Among them, after each leakage control assembly 220 receives the gas delivered by the corresponding connecting flexible pipe, according to the test set working condition requirements (such as needing to simulate "micro-leakage, moderate leakage, and serious leakage" at the same time), independently adjusts the self-regulating component, and adjusts the micro-leakage flow rate for the gas with small initial flow rate. For the gas with large initial flow rate, the large-range control assembly can be adjusted to moderate or serious leakage flow rate, realizing the synchronous and independent control of multiple leakage flow rates. The gas with different flow rates regulated by each leakage control assembly 220 is discharged into the liquid in the box 100 through the corresponding leakage pipe, simultaneously simulating multiple leakage scenarios with different flow rates and different positions (or different depths), forming a more complex working condition closer to the actual engineering with multiple leakage points coexisting.

[0069] Through the above settings, the diameter difference of the gas outlets 231 can form gas branching with different initial flow rates in the same communication pipe 230, simplifying the device structure and reducing the hardware cost of multi-condition simulation. The connecting flexible pipes with different diameters are matched with the diameters of the corresponding gas outlets 231, which can reduce the pressure fluctuation of the gas in the transmission process through the matching of flow resistance, improve the flow stability of the gas entering the leakage control assembly 220, and provide protection for accurate regulation.

[0070] And, the multiple leakage working condition synchronous simulation can be realized. The limitation that the existing single control component can only simulate one leakage flow is solved. Through the independent regulation and control of multiple leakage control components 220, multiple working conditions such as micro-leakage, moderate-leakage, and serious-leakage can be simulated at the same time, and even the flow changes at different times of the same leakage point (by dynamically adjusting the parameters of different components) can be simulated, which is closer to the complex scene of "multiple leakage points coexisting" or "dynamic change of leakage amount" in the actual pipeline. The flow regulation precision can also be improved. Each leakage control component 220 can adapt the range according to the initial flow range of the corresponding gas path, avoiding the problem that a single component has insufficient small flow regulation precision due to a too large range, or a large flow cannot be regulated due to a too small range, and realizing high-precision control in the full flow range.

[0071] It should be noted that in some embodiments, the diameter of the gas outlet of the communication pipe 230 and the diameter of the corresponding communication hose are set to 2mm, 4mm, 6mm, and the leakage control components 220 are connected through communication hoses with different diameters, which can simultaneously simulate multiple leakage scenarios with different flows and different positions (or different depths), forming a more complex working condition closer to the actual engineering multiple leakage points coexisting.

[0072] After that, the gas flowing through the leakage control component 220 passes through the exhaust hose, the exhaust outlet of the exhaust hose is arranged at the bottom of the box, so that the gas of the first pipeline leaks from the leakage hole, enters the communication pipe 230, enters the leakage control component 220 from the different gas outlets 231 of the communication pipe 230, enters the exhaust hose from the leakage control component 220, and is discharged into the box through the exhaust outlet of the exhaust hose. Through the position of the exhaust hose and the equivalent of the leaked gas, the leakage working condition of the oil and gas pipeline is simulated.

[0073] Referring to Figure 2 In some embodiments, the leakage control component 220 includes a solenoid valve 221, a gas flow meter 222, and a needle valve group 223 connected in series. The other end of the communication pipe 230 is in communication with the solenoid valve 221, and one end of the leakage pipe is in communication with the needle valve group 223. The solenoid valve 221 is used to control the opening and closing of the leakage gas flowing from the first pipeline 210 to the leakage pipe, the needle valve group 223 is used for flow control of the leakage gas of the leakage pipe, and the gas flow meter 222 is used for detecting the leakage gas flow.

[0074] It can be understood that after the electromagnetic valve 221 receives the electrical signal, the valve core quickly switches between the on and off states. When it is on, it allows gas to flow from the communication pipe 230 to the subsequent components. When it is off, it cuts off the gas path, achieving precise control of the on-off function of the gas path, and responding quickly, which can meet the on-off needs of dynamic leakage scenarios. The gas flow meter 222 senses the gas flow state and converts the flow signal into readable data, supporting monitoring and recording real-time leakage and cumulative leakage gas volume, realizing real-time flow monitoring and feedback function, providing data basis for flow regulation of the needle valve group 223, and forming a closed-loop control. The needle valve group 223 changes the valve core opening degree by rotating the valve rod, adjusts the gas path flow area, and then changes the gas flow rate and flow, realizing continuous and fine adjustment of the flow. According to the real-time flow data fed back by the gas flow meter 222, the flow can be accurately regulated to the preset value, ensuring the stability of the leakage flow.

[0075] Specifically, the gas delivery mechanism 500 delivers gas with a preset pressure to the first pipeline 210, and the gas flows to the leakage control assembly 220 through the leakage hole, the communication pipe 230 and the communication hose. At this time, the electromagnetic valve 221 receives the on signal, the valve core is opened, the gas path is turned on, the gas initially flows through the electromagnetic valve 221, and enters the gas flow meter 222. The gas flow meter 222 detects the initial gas flow in real time and feeds back the data to the control system. According to the preset leakage flow target value, the control system judges the difference between the initial flow and the target value. If the initial flow is too large or too small, the control system sends an adjustment instruction to the needle valve group 223 to fine-tune the valve core opening degree and change the gas path flow area, gradually approaching the target value.

[0076] Wherein, with the adjustment of the needle valve group 223, the gas flow meter 222 continuously feeds back real-time flow data, and the control system continuously fine-tunes the needle valve group 223 according to the data deviation until the flow stabilizes at the preset target value. In this process, if the leakage simulation needs to be paused, the electromagnetic valve 221 can receive the off signal to quickly cut off the gas path and stop the gas flow to the leakage pipe. For multiple leakage control assemblies 220 of the first simulation mechanism 200, the electromagnetic valves 221 of different assemblies can control the on-off of the corresponding gas paths, the gas flow meters 222 can detect the flow of each path, and the needle valve groups 223 can regulate the flow of each path to different target values. Finally, the regulated gas of each assembly is discharged into the liquid in the tank 100 through the corresponding leakage pipe, simulating multiple leakage conditions simultaneously.

[0077] Through the above setting, the first simulation mechanism 200 can not only realize multi-path synchronous leakage by matching the leakage control component 220 with closed-loop control capability, but also ensure the accurate and stable leakage flow of each path, solving the problem of low flow accuracy in multi-working condition simulation of traditional devices. Moreover, more complex dynamic leakage working conditions (such as gradually increasing from micro-leakage to serious leakage, intermittent leakage) can be simulated, and through the dynamic on-off of the electromagnetic valve 221 and the real-time adjustment of the needle valve group 223, the dynamic change process of actual pipeline leakage is reproduced, providing more realistic test conditions for dynamic response capability test of leakage detection equipment, and further improving the engineering application value of the device.

[0078] Referring to Figure 1 and Figure 2 In some embodiments, the first pipeline 210 includes a first pipe section 211 and a second pipe section 212, the first pipe section 211 is arranged in the cabinet 100 along the width direction of the cabinet 100, the second pipe section 212 is arranged on the cabinet 100, one end of the second pipe section 212 is located on one side of the width direction of the cabinet 100 and communicates with one end of the first pipe section 211, the other end of the second pipe section 212 is located on the other side of the width direction of the cabinet 100 and communicates with the other end of the first pipe section 211, and the leakage hole is arranged on the first pipe section 211. The gas feeding mechanism 500 communicates with the second pipe section 212, and the first simulation mechanism 200 further includes a first pump body 240 arranged on the second pipe section 212, the first pump body 240 is used to control the flow of gas in the first pipe section 211 and the second pipe section 212, and a heat exchanger and a temperature detection member are arranged on the first pipeline 210, the temperature detection member detects the temperature of the first pipeline 210, and the heat exchanger is used to control the temperature of the gas medium in the first pipeline 210.

[0079] Specifically, the gas feeding mechanism 500 is started to deliver gas with a preset pressure and flow rate to the second pipe section 212. The gas flows into the second pipe section 212 to preliminarily fill the second pipe section 212, and at the same time, the first pump body 240 is started to push the gas in the second pipe section 212 to one end of the first pipe section 211 through power output, so that the gas gradually enters the first pipe section 211 to complete the gas filling and initial pressure establishment of the closed-loop structure of the first pipeline 210. The first pump body 240 continuously works to adjust the output power according to the simulation requirements, control the gas to form a stable circulation in the first pipe section 211 and the second pipe section 212, and the gas flows from one end to the other end of the first pipe section 211 (along the width direction of the cabinet), the gas that does not leak through the leakage hole flows into the other end of the second pipe section 212 from the other end of the first pipe section 211, and then is pushed back to the first pipe section 211 by the first pump body 240 to form a closed-loop flow from the second pipe section 212 to the first pipe section 211 and then to the second pipe section 212. During this process, the gas pressure in the first pipe section 211 is maintained at a preset value to provide a stable pressure basis for the gas guided out of the leakage hole.

[0080] It should be noted that whether the gas flows between the first pipe section 211 and the second pipe section 212, the detection member can also obtain a signal in the leakage detection of the gas, and then determine the flow condition of the gas between the first pipe section 211 and the second pipe section 212.

[0081] Moreover, the gas in the first pipe section 211 flows out through the leakage hole on the pipe body and enters the communication pipe 230 in communication therewith. The communication pipe 230 divides the gas into multiple gas outlets 231, which are transported to the respective leakage control assemblies 220 through the corresponding communication hoses. The electromagnetic valve 221 receives a signal to open the gas path. The gas flow meter 222 detects the real-time flow and feeds back. The needle valve group 223 finely adjusts the flow according to the feedback data. Finally, the regulated gas is discharged into the liquid in the tank 100 through the leakage pipe, realizing the leakage simulation. At the same time, the first pump body 240 continuously maintains the circulation of the gas in the first pipeline 210, compensating for the pressure loss caused by the leakage, and ensuring the stability of the leakage flow. If it is necessary to adjust the leakage simulation parameters (such as increasing the leakage flow), the output power of the first pump body 240 can be increased to increase the gas flow rate and pressure in the first pipe section 211, so that the initial gas flow rate of the leakage hole is increased, and then the leakage control assembly 220 is finely adjusted. When the simulation is completed, the gas supply mechanism 500 stops supplying gas, the first pump body 240 stops working, and the electromagnetic valve 221 closes the gas path, completing the whole process.

[0082] Through the above arrangement, the first pipe section 211 is arranged in the tank along the width direction of the tank 100, multiple leakage holes can be arranged in the transverse area of the tank 100, the pipeline transverse multi-leakage point working condition is simulated, and the problem of single simulation scene of the traditional single pipe section local leakage is solved. The first pipe section 211 is located in the liquid in the tank 100, so that the gas discharged from the leakage hole directly contacts the liquid, a real underwater pipeline leakage environment is realized, simulation distortion caused by the deviation of the pipe section position from the liquid is avoided, and the test authenticity is improved. The stable control of the gas flow parameters by the first pump body 240, in cooperation with the real-time feedback of the gas flow meter 222, can ensure that the leakage flow has a small deviation under the same test condition, significantly improving the accuracy of the test data, and providing more accurate test basis for the leakage detection technology verification and pipeline safety evaluation.

[0083] Referring to Figure 1 In some embodiments, the second simulation mechanism 300 further includes two flow generating special-shaped cylinders 330, each of which is provided with a flow passage for liquid flow. One end of the second pipeline 310 communicates with the tank 100 through the flow generating special-shaped cylinder 330 of one of the two flow generating special-shaped cylinders 330, and the other end of the second pipeline 310 communicates with the tank 100 through the flow generating special-shaped cylinder 330 of the other of the two flow generating special-shaped cylinders 330. The cross-sectional dimension of the flow generating special-shaped cylinder 330 uniformly impacts the second pipeline 310 in the direction from the end of the second pipeline 310 towards the tank 100.

[0084] Specifically, the driving member 320 of the second simulation mechanism 300 is started, and the driving member 320 outputs power to act on the liquid in the second pipeline 310 to form a directional flow trend. At this time, the liquid in the box body 100 flows to the flow passage of one of the flow shaping special-shaped cylinders 330 under the action of the suction force of the driving member 320 and the pressure difference, the cross-sectional size of the one of the flow shaping special-shaped cylinders 330 gradually increases from the end of the second pipeline 310 to the box body 100, and after the liquid enters the flow passage from the large cross-sectional end (the side of the box body 100), the flow space gradually shrinks, the flow rate gently increases, and the guiding effect of the flow passage avoids vortex of the liquid, and finally the liquid enters one end of the second pipeline 310 in a smooth flow state, and the transition and introduction of the liquid in the box body to the second pipeline 310 is completed.

[0085] After that, the liquid flows to the other end of the second pipeline 310 and enters the flow passage of the other flow shaping special-shaped cylinder 330, the other flow shaping special-shaped cylinder 330 has the same structure as the one of the flow shaping special-shaped cylinders 330, and the cross-sectional size gradually increases from the end of the second pipeline 310 to the box body 100, and after the liquid enters the flow passage from the small cross-sectional end of the second pipeline 310, the flow space gradually expands, the flow rate gently decreases, and the residual small disturbance is further eliminated, and finally the liquid is guided back to the box body 100 from the large cross-sectional end in a smooth flow state close to the flow rate of the liquid in the box body 100, and the transition and backflow of the liquid in the second pipeline 310 to the box body 100 is completed, and the real water flow condition is simulated. And the flow rate is adjusted by the driving member 320, and the water pool inflow flow is controlled by the flow shaping special-shaped port of the flow shaping special-shaped cylinder 330 to flush the third pipeline 410, and the impact effect of the fluid on the third pipeline 410 and the underwater noise effect are formed.

[0086] Through the above setting, the liquid in the box body 100 always maintains a smooth flow state, avoids the diffusion track of the bubbles guided by the leakage hole of the first pipe section 211 from being disorderly caused by turbulent flow, ensures the accuracy of the leakage flow detection, and avoids the damage detection accuracy affected by the turbulent flow impact on the third pipeline 410. By setting the flow shaping special-shaped cylinder 330, the liquid can be transported from the box body 100 to the second pipeline 310, so that the liquid realizes circulating flow in the box body 100 and the second pipeline 310, and the water flow condition of the liquid in the box body 100 is constructed, and the influence of the gas leakage of the first pipeline 210 and the damage of the third pipeline 410 are detected under the condition of simulating the water flow condition, and the accuracy of the detection result is ensured.

[0087] Reference Figure 1In some embodiments, the third pipeline 410 includes a third pipe section 411 and a fourth pipe section 412. The third pipe section 411 is arranged in the width direction of the tank 100 inside the tank 100, and the fourth pipe section 412 is arranged on the tank 100. One end of the fourth pipe section 412 is located on one side in the width direction of the tank 100 and communicates with one end of the third pipe section 411, and the other end of the fourth pipe section 412 is located on the other side in the width direction of the tank 100 and communicates with the other end of the third pipe section 411. The detection member is arranged on the third pipe section 411. The gas delivery mechanism 500 communicates with the fourth pipe section 412, and the third simulation mechanism 400 further includes a second pump body 420 arranged on the fourth pipe section 412. The second pump body 420 is used to control the flow of fluid medium in the third pipe section 411 and the fourth pipe section 412.

[0088] Specifically, the gas delivery mechanism 500 is in communication with the fourth pipe section 412, and the detection member is installed at a predetermined position of the third pipe section 411 and is ready for debugging. At this time, the second pump body 420 is in standby state, the third pipeline 410 is in normal pressure state, and the tank 100 has been injected with liquid by the water delivery mechanism (covering the third pipe section 411, simulating the underwater pipeline environment), laying a foundation for subsequent gas flow and damage detection. Start the gas delivery mechanism 500, and according to the simulation requirements, deliver gas with a predetermined pressure and purity to the fourth pipe section 412. At the same time, start the second pump body 420, and the second pump body 420 outputs power to act on the gas in the fourth pipe section 412, pushing the gas to flow along the path from the fourth pipe section 412 to the third pipe section 411 and then to the fourth pipe section 412, forming a closed gas circuit.

[0089] It should be noted that the circulating medium in the third pipe section 411 and the fourth pipe section 412 can be one of liquid, gas, and gas-liquid mixed medium. In this application, the third pipe section 411 and the fourth pipe section 412 flow with gas-liquid mixed medium, thereby simulating the real working condition of the oil and gas delivery pipeline.

[0090] Moreover, when the gas flows stably in the third pipe section 411, the detection member starts to monitor the damage information of the third pipe section 411 in real time. Artificially preset different sizes of damage (such as drilling and grooving) in the third pipe section 411, the second pump body 420 keeps the gas parameters stable, and the detection member compares the detection data under different damage states to verify the sensitivity of the detection technology. The second pump body 420 adjusts the gas flow rate and pressure, and the detection member monitors the signal change of the same damage under different flow conditions, providing extreme working condition data support for pipeline operation and maintenance.

[0091] Through the above setting, the third pipe section 411 is located in the liquid in the box body 100, which reproduces the operation environment of the actual underwater pipeline (such as a submarine gas-liquid pipeline, an underwater oil and gas pipeline), and can also simulate the influence of water pressure on the damage of the pipe body. The fourth pipe section 412 is arranged on the box body 100 to avoid corrosion of the liquid to the gas conveying mechanism and the second pump body 420, and to ensure long-term stable operation of the equipment. The damage detection of the third simulation mechanism 400 needs to be cooperated with the leakage simulation of the first simulation mechanism 200 and the liquid flow simulation of the second simulation mechanism 300 (such as simulating the composite working condition of “underwater pipeline existing leakage and damage at the same time”). The stable gas path maintained by the second pump body 420 ensures that the damage detection of the third pipe section 411 is not affected by the leakage gas (such as bubble interference) of the first simulation mechanism and the liquid flow (such as flow rate fluctuation) of the second simulation mechanism. At the same time, the third pipe section 411 is arranged in parallel with the first pipe section 211 in the width direction to avoid interference between the pipe bodies, and to realize synchronous simulation of multiple working conditions.

[0092] It should be noted that, in some embodiments, the detection member includes a microstructure sensing optical fiber cloth, which is arranged on the first pipe 210 and the third pipe 410. The distributed optical fiber DAS system is used to collect defect data of the leakage of the first pipe 210, and the Brillouin separation analysis system is used to collect data of the defect of the third pipe 410.

[0093] Referring to Figure 1 and Figure 4 In some embodiments, the gas conveying mechanism 500 includes a gas storage tank 510, a gas conveying pipe and a gas compressor 520. The gas storage tank 510 is located on one side of the box body 100, the gas compressor 520 is in communication with the gas storage tank 510 through the gas conveying pipe, and the gas storage tank 510 is provided with a communication mechanism 530 between the first pipe 210 and the third pipe 410, so as to communicate the gas storage tank 510 with the first pipe 210 and the third pipe 410.

[0094] Specifically, the gas compressor 520 is started, and the target gas pressure is set according to the working condition requirement of the first simulation mechanism 200 and the third simulation mechanism 400. The gas compressor 520 inhales air from the outside, and the gas pressure is increased to the preset value through the compression effect, and then is stably conveyed to the gas storage tank 510 through the gas conveying pipe. The gas storage tank 510 receives the compressed gas and temporarily stores it, and at the same time, the pressure sensor in the gas storage tank 510 monitors the pressure in the tank in real time. When the pressure reaches the preset value, a feedback signal is fed back to the gas compressor 520, and the compressor switches to the pressure maintaining mode to avoid overpressure or insufficient pressure of the gas storage tank.

[0095] Afterwards, gas is supplied to the first pipeline 210. The valve of the communication mechanism 530 connected to the first pipeline 210 is opened, and the compressed gas in the gas tank 510 enters the second pipe section 212 through the valve, and at the same time, the first pump body 240 is started to push the gas to the first pipe section 211 to provide a stable gas source for the gas guided out of the leakage hole. In this process, the communication mechanism 530 can adjust the gas flow through the valve opening to match the power parameters of the first pump body 240, so as to avoid sudden changes in the gas flow rate. Gas is supplied to the third pipeline 410. The valve of the communication mechanism 530 connected to the third pipeline 410 is opened, and the compressed gas in the gas tank 510 enters the fourth pipe section 412 through the valve, and the second pump body 420 is started to push the gas to form a circulation between the third pipe section 411 and the fourth pipe section 412. If the first pipeline and the third pipeline need different pressure gas, the communication mechanism 530 can adjust the pressure of the two gas paths through the built-in pressure regulating valve to meet the differentiated needs.

[0096] Through the above setting, the gas tank 510 can temporarily store compressed gas and maintain stable pressure, cooperate with the pressure maintaining and air supplement function of the gas compressor, and ensure that the output gas pressure fluctuation is small. At the same time, the valve and pressure regulating valve of the communication mechanism 530 can accurately control the flow and pressure to avoid sudden changes in the flow rate when switching the gas path. The gas supply mechanism 500 as the common gas source of the first simulation mechanism 200 and the third simulation mechanism 400 has stable gas supply and differentiated adjustment capability, which ensures that the two mechanisms can be operated synchronously or independently, such as single leakage simulation or single damage detection, or both synchronous composite working condition simulation.

[0097] It should be noted that in some embodiments, the gas tank 510 is connected to the pressure reducing valve through the gas supply hose, the pressure reducing valve is arranged at the inlet of the gas tank 510, the outlet of the gas tank 510 is provided with a gas ball valve, the gas ball valve is connected to the three-way piece 531 through the gas supply hose, the three-way piece 531 is provided with a gas filter to filter the gas, and then the first pressure regulating valve 532 is used to send the gas into the first pipeline 210, and the first pipeline 210 is provided with a first pressure gauge for detecting the gas pressure in the first pipeline 210. The second pressure regulating valve 533 is used to send the gas into the third pipeline 410, and the third pipeline 410 is provided with a second pressure gauge for detecting the gas pressure in the third pipeline 410.

[0098] Referring to Figure 1 and Figure 3In some embodiments, the communication mechanism 530 includes a tee 531, a first air pipe and a second air pipe. The tee 531 has an air inlet, a first air outlet and a second air outlet. The air outlet 231 of the gas tank 510 is in communication with the air inlet of the tee 531. The first air outlet is in communication with the first pipeline 210 through the first air pipe. The second air outlet is in communication with the third pipeline 410 through the second air pipe. A first pressure regulating valve 532 for adjusting the gas pressure is arranged on the first air pipe. A second pressure regulating valve 533 for adjusting the gas pressure is arranged on the second air pipe.

[0099] Specifically, by communicating the gas tank 510 with the air inlet of the tee 531, the gas can enter the tee 531 and be divided into two branches. The first air outlet is in communication with the first pipeline 210 through the first air pipe, thereby enabling the compressed gas to be introduced into the first pipeline 210. The second air outlet is in communication with the third pipeline 410 through the second air pipe. The gas pressure and gas flow in the first pipeline 210 and the third pipeline 410 are realized under the action of the first pressure regulating valve 532 and the second pressure regulating valve 533, avoiding flow rate sudden change when the gas circuit is switched.

[0100] Referring to Figure 1 In some embodiments, a console 610 and a frame 620 are further included. The box body 100 and the console 610 are arranged on the frame 620. The console 610 is connected with the leakage control assembly 220, the driving member 320, the water delivery mechanism and the gas delivery mechanism 500, respectively.

[0101] Through the above arrangement, the frame 620 integrates each component through a preset interface, fixes the relative position of the box body and the console 610, and reserves installation space for the gas and water delivery mechanisms on the side or bottom of the frame 620, avoiding space waste caused by scattered placement. The frame 620 provides a stable installation basis for the console 610 and each mechanism, ensuring stable control signal transmission. The console 610 fully utilizes the space advantage after the frame is integrated through centralized control, making the entire device become an integrated test platform with stable structure, accurate control and convenient operation. Compared with the traditional scattered device, it can be widely used in pipeline leakage detection, damage assessment, operation and maintenance scheme verification and other scenes. In addition, the console 610 can perform control such as switching, adjustment and emergency stop, and can record various data in the experimental process.

[0102] It should be noted that the water delivery mechanism includes a water delivery hose and a water discharge hose, which can input the water pipe into the box 100 from the top of the box 100, and the water discharge hose can discharge the liquid in the box 100 from the box 100, so that the liquid can be discharged into or discharged from the box 100 through the water delivery hose and the water discharge hose, and the liquid can also be discharged and discharged at the same time, so as to simulate the water flow condition and ensure the accuracy of the simulation data.

[0103] Specifically, the first temperature sensor is arranged on the first pipeline 210, and the second temperature sensor is arranged on the third pipeline 410. Moreover, the heat exchange pipe is arranged on the first pipeline 210 and the third pipeline 410, and the heat exchange pipe is in communication with the heat exchange tank. The circulating pump is arranged in the heat exchange tank. By operating control, the medium (oil or water) in the heat exchange tank is heated. Through the circulating pump in the box 100, the heat exchange pipe, the first temperature sensor and the second temperature sensor, the real-time temperature of the first pipeline 210 and the third pipeline 410 can be obtained, so as to adjust the specific temperature in the first pipeline 210 and the third pipeline 410.

[0104] It should be noted that in other embodiments, a plurality of leakage holes are arranged on the gas delivery pipeline, and a leakage control release mechanism is arranged at the position corresponding to each leakage hole, so as to control the opening and closing of the leakage hole according to the leakage control release mechanism. The leakage control release mechanism includes a driving rod and a sealing plate. The driving rod is connected with the sealing plate. By controlling the driving rod to move vertically by external force, the sealing plate moves downward to be attached to the pipeline. When the sealing plate can seal the leakage hole, the gas leakage is avoided. When the driving rod moves upward, the sealing plate moves upward and separates from the pipeline, the leakage hole is opened, the gas in the pipeline leaks, and the detection piece detects the position and the amount of leakage in real time.

[0105] Finally, it should be noted that other embodiments of the application will occur to those skilled in the art having the benefit of the present disclosure. The present application is intended to cover any variations, uses or adaptive changes of the application following the general principles of the application and including known or customary technical means in the art not disclosed in the present application, and is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is only limited by the appended claims.

Claims

1. A device for simulating and testing pipeline damage conditions in deep-water subsea production systems, characterized in that, include: Box (100); A water delivery mechanism is connected to the housing (100) and is used to deliver liquid to the housing (100); The first simulation device (200) includes a first pipeline (210) and a leakage control component (220). A portion of the first pipeline (210) is disposed within the housing (100), and the leakage control component (220) is disposed on the housing (100). The leakage control component (220) is connected to the first pipeline (210) to control the gas leakage flow rate of the first pipeline (210). The second simulation mechanism (300) includes a second pipeline (310) and a drive unit (320). The inlet and outlet of the second pipeline (310) are respectively connected to the opposite sides of the tank (100). The drive unit (320) is disposed on the second pipeline (310) to drive the liquid in the tank (100) to circulate within the tank (100) and the second pipeline (310). The third simulation mechanism (400) includes a third pipeline (410) and a detection element. Part of the third pipeline (410) is disposed inside the housing (100). The detection element is used to detect damage information of the third pipeline (410) and temperature information of the liquid. A gas delivery mechanism (500) is connected to the first pipeline (210) and the third pipeline (410) respectively to deliver gas into the first pipeline (210) and the third pipeline (410).

2. The pipeline damage simulation and testing device for deep-water submersible production systems according to claim 1, characterized in that, The first simulation mechanism (200) further includes a connecting pipe (230) and a leakage pipe. The first pipeline (210) is provided with a leakage hole. One end of the connecting pipe (230) is connected to the leakage hole, and the other end of the connecting pipe (230) is connected to the leakage control component (220). One end of the leakage pipe is connected to the leakage control component (220), and one end of the leakage pipe is located inside the housing (100). The leakage control component (220) is configured to control the gas flow rate from the first conduit (210) to the leakage pipe.

3. The pipeline damage simulation test device for deep-water submersible production systems according to claim 2, characterized in that, The other end of the connecting pipe (230) is provided with multiple air outlets (231), and the multiple air outlets (231) have different diameters. The first simulation mechanism (200) also includes multiple connecting hoses with different diameters and multiple leakage control components (220). One end of the connecting hose is provided corresponding to the air outlet (231), and the other end of the connecting hose is provided corresponding to the leakage control component (220).

4. The pipeline damage simulation and testing device for deep-water underwater production systems according to claim 3, characterized in that, The leakage control assembly (220) includes a solenoid valve (221), a gas flow meter (222), and a needle valve assembly (223) connected together. The other end of the connecting pipe (230) is connected to the solenoid valve (221), and one end of the leakage pipe is connected to the needle valve assembly (223). The solenoid valve (221) is used to control the opening and closing of the leaked gas from the first pipeline (210) to the leakage pipe. The needle valve assembly (223) is used to control the flow rate of the leaked gas in the leakage pipe. The gas flow meter (222) is used to detect the flow rate of the leaked gas.

5. The pipeline damage simulation and testing device for deep-water submersible production systems according to claim 2, characterized in that, The first pipeline (210) includes a first pipe section (211) and a second pipe section (212). The first pipe section (211) is disposed inside the box (100) along the width direction of the box (100). The second pipe section (212) is disposed on the box (100). One end of the second pipe section (212) is located on one side of the box (100) in the width direction and communicates with one end of the first pipe section (211). The other end of the second pipe section (212) is located on the other side of the box (100) in the width direction and communicates with the other end of the first pipe section (211). The leakage hole is disposed on the first pipe section (211). The gas delivery mechanism (500) is connected to the second pipe section (212). The first simulation mechanism (200) also includes a first pump body (240). The first pump body (240) is disposed on the second pipe section (212). The first pump body (240) is used to control the flow of gas in the first pipe section (211) and the second pipe section (212). A heat exchanger and a temperature detection device are disposed on the first pipe (210). The temperature detection device detects the temperature of the first pipe (210). The heat exchanger is used to control the temperature of the gas medium in the first pipe (210).

6. The pipeline damage simulation and testing device for deep-water submersible production systems according to claim 1, characterized in that, The second simulation mechanism (300) also includes two flow-generating irregular cylinders (330), each of which is provided with a flow channel for liquid flow. One end of the second pipe (310) is connected to the box (100) through one of the flow-generating irregular cylinders (330), and the other end of the second pipe (310) is connected to the box (100) through the other flow-generating irregular cylinder (330). The cross-sectional dimensions of the flow-generating irregular cylinder (330) uniformly impact the second pipe (310) in the direction from the end of the second pipe (310) toward the box (100).

7. The pipeline damage simulation and testing device for deep-water submersible production systems according to claim 1, characterized in that, The third pipeline (410) includes a third pipe section (411) and a fourth pipe section (412). The third pipe section (411) is disposed inside the box (100) along the width direction of the box (100). The fourth pipe section (412) is disposed on the box (100). One end of the fourth pipe section (412) is located on one side of the box (100) in the width direction and is connected to one end of the third pipe section (411). The other end of the fourth pipe section (412) is located on the other side of the box (100) in the width direction and is connected to the other end of the third pipe section (411). The detection element is disposed on the third pipe section (411). The gas delivery mechanism (500) is connected to the fourth pipe section (412). The third simulation mechanism (400) also includes a second pump body (420), which is disposed on the fourth pipe section (412). The second pump body (420) is used to control the flow of fluid medium in the third pipe section (411) and the fourth pipe section (412).

8. The pipeline damage simulation and testing device for deep-water submersible production systems according to claim 1, characterized in that, The gas delivery mechanism (500) includes a gas storage tank (510), a gas delivery pipeline, and a gas compressor (520). The gas storage tank (510) is located on one side of the housing (100). The gas compressor (520) is connected to the gas storage tank (510) through the gas delivery pipeline. A communication mechanism (530) is provided between the gas storage tank (510) and the first pipeline (210) and the third pipeline (410) to enable the gas storage tank (510) to be connected to the first pipeline (210) and the third pipeline (410).

9. The pipeline damage simulation and testing device for deep-water submersible production systems according to claim 8, characterized in that, The connecting mechanism (530) includes a three-way connector (531), a first vent pipe and a second vent pipe. The three-way connector (531) has an air inlet, a first air outlet and a second air outlet. The air outlet of the gas storage tank (510) is connected to the air inlet of the three-way connector (531). The first air outlet is connected to the first pipeline (210) through the first vent pipe. The second air outlet is connected to the third pipeline (410) through the second vent pipe. The first vent pipe is equipped with a first pressure regulating valve (532) for adjusting the gas pressure. The second vent pipe is equipped with a second pressure regulating valve (533) for adjusting the gas pressure.

10. The pipeline damage simulation and testing device for deep-water submersible production systems according to claim 1, characterized in that, It also includes a console (610) and a frame (620), the housing (100) and the console (610) are both mounted on the frame (620), and the console (610) is connected to the leakage control component (220), the drive component (320), the water supply mechanism and the gas supply mechanism (500) respectively.

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