Corrosion test equipment and test method for cable tunnel repair material and electronic equipment

Abstract

The invention provides corrosion test equipment of a cable tunnel repair material, a test method and electronic equipment, the corrosion test equipment comprises an environment simulation test box, the environment simulation test box comprises a corrosion reaction structure, and the corrosion reaction structure comprises a test piece placement bin and a solution circulation bin which are separated by an air-permeable partition plate; the solution circulating bin is used for storing a first corrosive solution and generating corrosive gas to provide the corrosive gas to the test piece; the current generation structure is positioned on one side of the test piece placement bin and is used for providing current for the test piece; the first supply structure is located on one side of the solution circulation bin and used for conveying a first corrosion solution to the solution circulation bin; and the second supply structure is positioned on one side of the test piece placing bin and is used for conveying a second corrosion solution to the test piece placing bin. The problem that in the prior art, cable tunnel repairing material corrosion test equipment is single in function and poor in environmental parameter coupling performance, and consequently simulation precision and test efficiency of a material corrosion test are low is solved.

Description

Technical Field

[0001] The present application relates to the technical field of corrosion assessment of cable repair materials, and in particular to a corrosion test device for cable tunnel repair materials, a corrosion test method for cable tunnel repair materials, a computer program product, and an electronic device. Background Art

[0002] As a vital component of modern urban public infrastructure, urban power grids are increasingly in demand. Traditional overhead power grids are susceptible to weather and aging, making urban cable tunnels an ideal alternative. Cable tunnels offer advantages such as large cable capacity, easy maintenance and repair, and a comprehensive monitoring system, making them widely used in urban power grid construction. However, due to the presence of corrosive ions in urban groundwater, such as salt, alkali, chlorine, and sulfate ions, especially hydrogen sulfide gas produced when sulfate ions are reduced, the large amounts of carbon dioxide emitted by industries and automobiles into the soil, which leads to concrete carbonization, and electrochemical corrosion caused by stray currents in the soil, tunnel damage can occur, compromising the durability of tunnel structures.

[0003] Traditional cable tunnel structures are made of concrete or brickwork, which are brittle materials with low tensile strength. They are easily affected by long-term exposure to multiple coupling factors such as salt solution corrosion, microbial corrosion, and carbon dioxide concentration. Therefore, the research and development and performance research of cable tunnel repair materials suitable for such a multiple coupling environment are very important and urgently need to be solved. At the same time, a test device for testing the durability of such repair materials in a coupled environment is also indispensable. However, no device suitable for testing the durability of cable tunnel repair materials in this environment has been found. In response to the problems of the prior art, the present invention provides a corrosion test device and method for cable tunnel repair materials under a multiple coupling environment. Summary of the Invention

[0004] The main purpose of this application is to provide a corrosion testing equipment for cable tunnel repair materials, a corrosion testing method for cable tunnel repair materials, a computer program product and an electronic device, so as to at least solve the problems in the prior art of the corrosion testing equipment for cable tunnel repair materials having a single function and poor coupling of environmental parameters, resulting in low simulation accuracy and test efficiency of material corrosion tests.

[0005] To achieve the above-mentioned objectives, according to one aspect of the present application, a corrosion testing device for cable tunnel repair materials is provided, comprising an environmental simulation test chamber, the environmental simulation test chamber being used to simulate the corrosion environment of cable tunnel repair materials, the environmental simulation test chamber being a closed chamber, the environmental simulation test chamber comprising: a corrosion reaction structure, the corrosion reaction structure comprising a specimen placement chamber and a solution circulation chamber, the specimen placement chamber and the solution circulation chamber being separated from each other by an air-permeable partition, the specimen placement chamber being used to place specimens, the solution circulation chamber being used to store a first corrosive solution and generate corrosive gas to provide the corrosive gas to the specimen, wherein the specimen is a repair material for a cable tunnel; a current generating structure, located on one side of the specimen placement chamber, the current generating structure being used to provide current to the specimen; a first supply structure, located on one side of the solution circulation chamber, the first supply structure being used to deliver the first corrosive solution to the solution circulation chamber; and a second supply structure, located on one side of the specimen placement chamber, the second supply structure being used to deliver a second corrosive solution to the specimen placement chamber.

[0006] Optionally, the first corrosion solution includes a microbial culture solution, the second corrosion solution includes a salt solution, and the environmental simulation test chamber further includes: a gas environment structure, located on one side of the specimen placement chamber, the gas environment structure is used to monitor the temperature, humidity and gas concentration in the environmental simulation test chamber; a corrosion liquid treatment structure, including a waste liquid cleaning box and a gas collection box, the waste liquid cleaning box is connected to the solution circulation chamber, the waste liquid cleaning box is used to purify the waste liquid generated by the corrosion test, the gas collection box is connected to the specimen placement chamber, the gas collection box is used to collect the gas generated by the corrosion test.

[0007] Optionally, the current generating structure includes a current signal generator, one end of the current signal generator is electrically connected to the test piece, and the other end of the current signal generator is used to be electrically connected to the electrode plate, the output frequency of the current signal generator is 0.1Hz-100kHz, and the output current is 0A-10A.

[0008] Optionally, the material of the body of the environmental simulation test box includes transparent acrylic and stainless steel, the interlayer of the environmental simulation test box is filled with polyurethane material, the specimen placement chamber includes a sealed observation window, and the sealed observation window is used to observe the corrosion condition of the specimen. The material of the sealed observation window includes polycarbonate, and the transmittance of the sealed observation window is ≥90%.

[0009] Optionally, the gas environment structure includes: a carbon dioxide release structure for releasing carbon dioxide into the specimen placement chamber and adjusting the released carbon dioxide concentration according to a preset carbon dioxide concentration; a distributed temperature and humidity sensor group, including multiple temperature and humidity sensors, at least two of the temperature and humidity sensors have unequal lengths, the material of the probe of the temperature and humidity sensor group includes polyimide, the temperature detection accuracy of the temperature and humidity sensor group is -20°C to 120°C, and the humidity detection accuracy of the temperature and humidity sensor group is -2%RH to 2%RH; a gas concentration detection structure, including an electrochemical sensor, which is used to detect the concentration of carbon dioxide and the concentration of the corrosive gas.

[0010] Optionally, the environmental simulation test chamber further comprises: a constant temperature and humidity adjustable water tank, located on a side of the solution circulation chamber away from the specimen placement chamber, the constant temperature and humidity adjustable water tank being used to maintain the temperature and humidity in the environmental simulation test chamber at a preset temperature and humidity.

[0011] Optionally, the specimen placement chamber includes: an adjustable block group, including two blocks, the two blocks are respectively located on both sides of the specimen to fix the specimen; a polytetrafluoroethylene pulley, mechanically connected to the adjustable block group, for adjusting the distance between the two blocks according to the size of the specimen.

[0012] According to another aspect of the present application, a corrosion test method for cable tunnel repair materials is provided, which is applied to any one of the corrosion test equipment for cable tunnel repair materials. The method includes: placing a specimen in a specimen placement chamber, controlling a second supply structure to deliver a second corrosive solution to the specimen placement chamber to chemically corrode the specimen, and controlling a first supply structure to deliver a first corrosive solution to a solution circulation chamber so that the first corrosive solution generates corrosive gas to perform gas corrosion on the specimen; and controlling a current generating structure to provide current to the specimen to accelerate the chemical corrosion of the specimen.

[0013] According to another aspect of the present application, a computer program product is provided, comprising computer instructions, which implement the corrosion test method for cable tunnel repair materials when executed by a processor.

[0014] According to another aspect of the present application, an electronic device is provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for performing the corrosion test of the cable tunnel repair material.

[0015] Applying the technical solution of the present application, the corrosion test equipment includes an environmental simulation test chamber for simulating the corrosion environment of cable tunnel repair materials. The environmental simulation test chamber includes a corrosion reaction structure, a current generating structure, a first supply structure and a second supply structure. The corrosion reaction structure includes a specimen placement chamber and a solution circulation chamber separated by a permeable partition. The specimen placement chamber is used to place the specimen, the solution circulation chamber is used to store a first corrosion solution and generate corrosion gas to provide corrosion gas to the specimen, the current generating structure is used to provide current to the specimen, the first supply structure is used to transport the first corrosion solution to the solution circulation chamber, and the second supply structure is used to transport the second corrosion solution to the specimen placement chamber. Compared with the existing technology, the cable tunnel repair material corrosion test equipment has a single function and poor coupling of environmental parameters, resulting in low simulation accuracy and test efficiency of material corrosion tests. The present application sets a corrosion reaction structure, a current generating structure, a first supply structure and a second supply structure, which can simultaneously simulate a multi-factor coupling environment including chemical corrosion (second corrosion solution), electrochemical corrosion (application of current) and gas corrosion (corrosive gas generated by the first corrosion solution), thereby realizing the simulation of a multi-factor coupling environment and simulating the corrosion environment in an actual underground tunnel to the greatest extent. The degree of simulation of the working environment is high, ensuring the simulation degree of the corrosion test and the accuracy of the test results. Moreover, the corrosion test equipment of the present application is simple, convenient and easy to operate, and the coordination of each link is good, ensuring high test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0017] Figure 1 A schematic diagram of the external structure of a corrosion testing device for a cable tunnel repair material provided in an embodiment of the present application is shown;

[0018] Figure 2 A schematic diagram of the internal structure of a corrosion testing device for a cable tunnel repair material provided in an embodiment of the present application is shown;

[0019] Figure 3 A schematic structural diagram of a constant temperature and humidity adjustable water tank in a corrosion testing device for a cable tunnel repair material provided in an embodiment of the present application is shown;

[0020] Figure 4 A schematic diagram of a support structure for supporting a specimen placement chamber in a corrosion testing device for a cable tunnel repair material provided in an embodiment of the present application is shown;

[0021] Figure 5A partially enlarged schematic diagram of a specimen placement chamber in a corrosion testing device for a cable tunnel repair material provided in an embodiment of the present application is shown;

[0022] Figure 6 A hardware structure block diagram of a mobile terminal for performing a corrosion test method for cable tunnel repair materials provided in an embodiment of the present application is shown;

[0023] Figure 7 A schematic flow chart of a corrosion test method for a cable tunnel repair material provided according to an embodiment of the present application is shown.

[0024] The above drawings include the following reference numerals:

[0025] 1. Environmental simulation test chamber; 2. Corrosion reaction structure; 21. Specimen placement chamber; 22. Solution circulation chamber; 3. Specimen; 23. Breathable partition; 24. First corrosive solution; 4. Current generating structure; 5. First supply structure; 25. First pipeline; 26. Sprinkler nozzle; 6. Second supply structure; 27. Second corrosive solution; 28. Second pipeline; 29. ​​Peristaltic pump; 30. First anti-corrosion butterfly valve; 31. Agitator; 7. Corrosive liquid treatment structure; 71. Waste liquid cleaning box; 72. Gas collection box; 73. Third pipeline; 74. Solenoid valve; 75. Liquid pump; 76. Second anti-corrosion butterfly valve; 77. Air extraction Pump; 78. Fourth pipeline; 41. Current signal generator; 32. Plate; 42. Wire; 211. Sealed observation window; 33. Carbon dioxide release structure; 34. Temperature and humidity sensor; 35. Gas concentration detection structure; 8. Constant temperature and humidity adjustable water tank; 81. Temperature heating structure; 82. Ordinary pulley; 83. Guide rail; 84. Temperature and humidity control panel; 212. Block; 213. Polytetrafluoroethylene pulley; 214. Anti-corrosion fixing plate; 215. U-shaped guide rail; 216. Horizontal bracket; 10. Support; 102. Processor; 104. Memory; 106. Transmission equipment; 108. Input and output equipment. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] As introduced in the background technology, the existing cable tunnel repair material corrosion test equipment has a single function and poor coupling of environmental parameters, resulting in low simulation accuracy and test efficiency of material corrosion tests. In order to solve the above problems, the embodiments of the present application provide a cable tunnel repair material corrosion test equipment, a cable tunnel repair material corrosion test method, a computer program product and an electronic device.

[0030] It should be noted that traditional cable tunnel structures are made of concrete or brickwork, which are brittle materials with low tensile strength. Long-term exposure to multiple coupled factors, such as salt solution corrosion, microbial corrosion, and carbon dioxide concentration, can easily affect their performance and durability. Therefore, the development and performance research of cable tunnel repair materials suitable for this multi-factor coupled environment is extremely important and urgently needed. Furthermore, test equipment for testing the durability of such repair materials in this coupled environment is essential. However, currently, no equipment suitable for testing the durability of cable tunnel repair materials in this environment has been found.

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] The embodiment of the present application provides a corrosion test device for cable tunnel repair materials, such as Figure 1 、 Figure 2 and Figure 4 As shown, it includes an environmental simulation test box 1, which is used to simulate the corrosion environment of cable tunnel repair materials. The environmental simulation test box 1 is a closed cavity and includes:

[0033] A corrosion reaction structure 2 includes a specimen placement chamber 21 and a solution circulation chamber 22. The specimen placement chamber 21 and the solution circulation chamber 22 are separated by a gas-permeable partition 23. The specimen placement chamber 21 is used to place a specimen 3. The solution circulation chamber 22 is used to store a first corrosion solution 24 and generate a corrosion gas (not shown) to provide the corrosion gas to the specimen 3. The specimen 3 is a repair material for a cable tunnel.

[0034] During actual application, those skilled in the art can flexibly select the first etching solution and the second etching solution according to actual needs, and this application does not impose any specific restrictions on this.

[0035] Specifically, the corrosive gas includes hydrogen sulfide gas. The material of the test piece 3 includes but is not limited to concrete, steel bars, composite materials, and polymer materials, and the material of the air permeable partition 23 includes but is not limited to polytetrafluoroethylene, polypropylene, and glass fiber reinforced composite materials, etc. This application does not impose specific restrictions on this.

[0036] A current generating structure 4 is located on one side of the specimen placement chamber 21 and is used to provide current to the specimen 3;

[0037] Specifically, the current generating structure 4 is electrically connected to the test piece 3 .

[0038] A first supply structure 5 is located on one side of the solution circulation chamber 22 and is used to supply the first etching solution 24 to the solution circulation chamber 22;

[0039] Specifically, the solution circulation tank 22 is connected to the first supply structure 5 via a first pipeline 25 , and the first pipeline 25 is provided with a liquid spray nozzle 26 .

[0040] The second supply structure 6 is located at one side of the specimen placement chamber 21 . The second supply structure 6 is used to deliver the second etching solution 27 to the specimen placement chamber 21 .

[0041] Specifically, the specimen placement chamber 21 is connected to the second supply structure 6 via a second pipeline 28 .

[0042] Through the above embodiments, the corrosion test equipment includes an environmental simulation test box for simulating the corrosion environment of cable tunnel repair materials, the environmental simulation test box includes a corrosion reaction structure, a current generating structure, a first supply structure and a second supply structure, the corrosion reaction structure includes a specimen placement chamber and a solution circulation chamber separated by a permeable partition, the specimen placement chamber is used to place the specimen, the solution circulation chamber is used to store the first corrosion solution and generate corrosion gas to provide the above-mentioned corrosion gas to the specimen, the current generating structure is used to provide current to the specimen, the first supply structure is used to transport the first corrosion solution to the solution circulation chamber, and the second supply structure is used to transport the second corrosion solution to the specimen placement chamber. Compared with the existing technology, the cable tunnel repair material corrosion test equipment has a single function and poor coupling of environmental parameters, resulting in low simulation accuracy and test efficiency of material corrosion tests. The present application sets a corrosion reaction structure, a current generating structure, a first supply structure and a second supply structure, which can simultaneously simulate a multi-factor coupling environment including chemical corrosion (second corrosion solution), electrochemical corrosion (application of current) and gas corrosion (corrosive gas generated by the first corrosion solution), thereby realizing the simulation of a multi-factor coupling environment and simulating the corrosion environment in an actual underground tunnel to the greatest extent. The degree of simulation of the working environment is high, ensuring the simulation degree of the corrosion test and the accuracy of the test results. Moreover, the corrosion test equipment of the present application is simple, convenient and easy to operate, and the coordination of each link is good, ensuring high test efficiency.

[0043] Specifically, if Figure 2 As shown, a peristaltic pump 29 and a first anti-corrosion butterfly valve 30 are provided at the interfaces of the first pipeline 25 and the second pipeline 28, and an agitator 31 is provided at the first supply structure 5 and the second supply structure 6. The first supply structure 5 and the second supply structure 6 are both corrosive liquid storage tanks.

[0044] In an optional solution, the first corrosion solution comprises a microbial culture solution, and the second corrosion solution comprises a salt solution, such as Figure 1 and Figure 2As shown, the above-mentioned environmental simulation test box also includes: a gas environment structure (not marked), located on one side of the above-mentioned specimen placement chamber 21, and the above-mentioned gas environment structure is used to monitor the temperature, humidity and gas concentration in the above-mentioned environmental simulation test chamber 1; a corrosion liquid processing structure 7, including a waste liquid cleaning box 71 and a gas collection box 72, the above-mentioned waste liquid cleaning box 71 is connected to the above-mentioned solution circulation chamber 22, and the above-mentioned waste liquid cleaning box 71 is used to purify the waste liquid generated by the corrosion test, and the above-mentioned gas collection box 72 is connected to the above-mentioned specimen placement chamber 21, and the above-mentioned gas collection box 72 is used to collect the gas generated by the corrosion test. In this embodiment, the microbial culture fluid and the salt solution simulate the corrosive media in the soil and groundwater. The microbial culture fluid can simulate the microbial corrosion environment inside the cable tunnel, and the salt solution can simulate the salt corrosion environment. The sulfate-reducing bacteria present in the microbial culture fluid can produce hydrogen sulfide gas, which increases the simulation of gas corrosion, while the salt solution enhances the effects of chemical corrosion and electrochemical corrosion. By monitoring the temperature, humidity and gas concentration in the environmental simulation test chamber through the gas environment structure, the complex underground corrosion environment can be accurately simulated, providing test conditions that are closer to actual working conditions, which helps scientific researchers to more comprehensively evaluate the durability of repair materials in a multi-factor coupling environment. The corrosion liquid treatment structure includes a waste liquid cleaning box and a gas collection box, which are used to purify the waste liquid generated by the corrosion test and collect harmful gases. This not only effectively prevents the corrosive waste liquid and gas generated during the test from polluting the environment, but also ensures the safety of the operator and improves the environmental protection and operability of the test.

[0045] Specifically, if Figure 2 As shown, the waste liquid cleaning box 71 is connected to the solution circulation chamber 22 through the third pipeline 73, and can process the waste liquid generated by the test through the solenoid valve 74 and the liquid pump 75. The gas collection box 72 can process the gas generated by the test through the second anti-corrosion butterfly valve 76 and the air pump 77. The gas collection box 72 is connected to the specimen placement chamber 21 through the fourth pipeline 78, and collects harmful gases through the air pump 77.

[0046] In an exemplary embodiment, Figure 1 and Figure 2 As shown, the current generating structure 4 includes a current signal generator 41. One end of the current signal generator 41 is electrically connected to the test piece 3, and the other end of the current signal generator 41 is used to electrically connect to the electrode plate 32. The output frequency of the current signal generator 41 is 0.1 Hz to 100 kHz, and the output current is 0 A to 10 A. In this embodiment, the configuration of the current signal generator can simulate the current corrosion environment inside the cable tunnel. The adjustable range of its output frequency and output current includes but is not limited to 0.1 Hz to 100 kHz and 0 A to 10 A, which can adapt to the corrosion test requirements of different materials under different current conditions, thereby more comprehensively evaluating the performance of the repair material.

[0047] Specifically, steel bars are embedded in the specimens. Figure 1 and Figure 2 As shown, the current generating structure 4 further includes a multi-channel wire group (not shown), and the cross-sectional area of ​​each wire 42 in the multi-channel wire group is 2.5mm 2 The current generator is equipped with a silver-silver chloride electrode interface at its end. The anode output terminal of the current signal generator 41 is electrically connected to the steel bars in the specimen 3 via a wire 42, and the cathode output terminal of the current signal generator 41 is electrically connected to the electrode plate 32 (i.e., the current cathode plate) via a wire 42. The current cathode plate is also electrically connected to the steel bars within the specimen. The current generator has a built-in programmable controller that can be set to constant current, constant voltage, or pulse waveform loading mode. The wire is used to conduct the simulated current.

[0048] Specifically, the current signal generator is used to generate analog current and can output multiple independent electrical signals. The current signal generator can generate various electrical signals and set related parameters, such as AC signals, DC signals, pulse signals, triangular wave signals, etc. The current signal generator can generate corresponding analog signals based on the imported real current signal.

[0049] Specifically, the current cathode plate is used to conduct current. The material of the current cathode plate includes a ruthenium-iridium-titanium mesh, which is corrosion-resistant and can maintain insulation from surrounding metal components.

[0050] In other embodiments, the material of the box body of the environmental simulation test box includes transparent acrylic and stainless steel, and the interlayer of the environmental simulation test box is filled with polyurethane material, such as Figure 1 As shown, the specimen placement chamber (not shown) includes a sealed observation window 211, which is used to observe the corrosion condition of the specimen 3. The material of the sealed observation window 211 includes polycarbonate, and the light transmittance of the sealed observation window 211 is ≥90%. In this embodiment, the use of transparent acrylic and stainless steel not only ensures the structural strength of the test chamber, but also provides good observation conditions. By filling the interlayer of the chamber with polyurethane material, its excellent thermal insulation performance helps to maintain the constant temperature and humidity in the chamber, thereby ensuring that the corrosion test is carried out under the set environmental parameters, further improving the accuracy and reliability of the test results. The setting of the sealed observation window, including but not limited to polycarbonate material and high light transmittance, enables researchers to visually observe the corrosion process of the specimen, providing an intuitive basis for data analysis.

[0051] Specifically, the shell of the environmental simulation test chamber is composed of a composite structure of transparent acrylic and stainless steel materials, the interlayer of which is filled with polyurethane insulation material. A sealed observation window with a silicone sealing ring is provided in the middle of the chamber, which can observe the corrosion condition of the internal specimens in real time.

[0052] According to some exemplary embodiments of the present application, Figure 2As shown, the gas environment structure includes: a carbon dioxide release structure 33, which is used to release carbon dioxide into the specimen placement chamber 21 and adjust the released carbon dioxide concentration according to the preset carbon dioxide concentration; a distributed temperature and humidity sensor group (not marked), including a plurality of temperature and humidity sensors 34, at least two of the temperature and humidity sensors 34 have different lengths, the material of the probe of the temperature and humidity sensor group includes polyimide, the temperature detection accuracy of the temperature and humidity sensor group is -20°C to 120°C, and the humidity detection accuracy of the temperature and humidity sensor group is -2%RH to 2%RH; a gas concentration detection structure 35, including an electrochemical sensor, which is used to detect the concentration of carbon dioxide and the concentration of the above-mentioned corrosive gas. In this embodiment, the carbon dioxide release mechanism releases carbon dioxide into the specimen storage chamber and can be precisely adjusted according to a preset concentration. This function directly simulates the changes in carbon dioxide concentration caused by microbial activity or industrial emissions in cable tunnels, which affects the carbonation rate of concrete and the durability of repair materials. By controlling the carbon dioxide concentration, researchers can explore the corrosion behavior of repair materials in different gas environments, improving the targetedness and research depth of the experiment. The distributed temperature and humidity sensor group uses thermometers and hygrometers of different lengths to accurately measure temperature and humidity at multiple points in the specimen storage chamber. The polyimide material probe has excellent temperature resistance and can adapt to the temperature detection range of -20°C to 120°C. At the same time, the humidity detection accuracy reaches ±2%RH, ensuring the accuracy and reliability of temperature and humidity monitoring. The gas concentration detection structure uses electrochemical sensors to detect the concentration of carbon dioxide and corrosive gases (such as hydrogen sulfide) generated by microbial corrosion in the specimen storage chamber in real time. The high sensitivity and rapid response capability of the electrochemical sensors can ensure accurate tracking of gas concentrations during the experiment, providing important data support for studying the corrosion mechanism and corrosion resistance of repair materials in complex gas environments.

[0053] Specifically, the longer temperature and humidity sensor is used to detect the temperature and humidity near the test piece placement chamber, and the shorter temperature and humidity sensor is used to detect the temperature and humidity near the box body of the environmental simulation test box.

[0054] Specifically, the gas concentration detection structure can simultaneously detect the concentrations of carbon dioxide gas and hydrogen sulfide gas. The detection indicators of the gas concentration detection structure are: CO2 (range 0-20% vol) and H2S (range 0-500ppm), and the response time is ≤30s.

[0055] Specifically, the distributed temperature and humidity sensor group can display the preset temperature and the actual temperature in the specimen placement chamber.

[0056] In the actual process, those skilled in the art can set the preset carbon dioxide concentration based on empirical values, or obtain it through multiple experiments, and this application does not impose any specific restrictions on this.

[0057] According to other exemplary embodiments of the present application, Figure 1 and Figure 2 As shown, the environmental simulation test chamber further includes a constant temperature and humidity adjustable water tank 8, located on a side of the solution circulation chamber 22 away from the specimen placement chamber 21. The constant temperature and humidity adjustable water tank 8 is used to maintain the temperature and humidity within the environmental simulation test chamber 1 at a preset level. In this embodiment, the constant temperature and humidity adjustable water tank can precisely control the temperature and humidity within the environmental simulation test chamber, maintaining them at preset levels. This is particularly important for corrosion testing, as changes in temperature and humidity directly affect the corrosion rate and corrosion mechanism. By maintaining constant temperature and humidity, it is possible to ensure that all specimens are tested under the same or controllable conditions, thereby further improving the comparability and reliability of test data.

[0058] Specifically, if Figure 1 As shown, a structural bottom plate 9 is provided at the bottom of the environmental simulation test box 1, and a constant temperature and humidity adjustable water tank 8 is placed on the structural bottom plate 9. Figure 3 As shown, the constant temperature and humidity adjustable water tank 8 includes a temperature heating structure 81 for maintaining a constant temperature within the constant temperature and humidity adjustable water tank 8. Ordinary pulleys 82 and guide rails 83 are symmetrically arranged on both sides of the constant temperature and humidity adjustable water tank 8, making it easy to clean the constant temperature and humidity adjustable water tank 8 at any time. The span of the guide rails 83 is 60-80% of the width of the constant temperature and humidity adjustable water tank 8. The temperature heating structure 81 is connected to a temperature and humidity control panel 84 provided on the outside of the environmental simulation test chamber 1, and the temperature and humidity are monitored and set via the temperature and humidity control panel 84. Furthermore, the temperature heating structure 81 is a threaded heating tube that can be determined based on design parameters such as heating time, heating rate, and heating temperature. Ordinary pulleys and guide rails are used to easily remove the constant temperature and humidity adjustable water tank for easy cleaning at any time.

[0059] During actual application, those skilled in the art can set the preset temperature and humidity based on empirical values, or obtain them through multiple experiments. This application does not impose any specific restrictions on this.

[0060] In some alternative solutions of this application, such as Figure 5 As shown, the specimen placement chamber (not shown) includes an adjustable block assembly (not labeled), comprising two blocks 212, one located on either side of the specimen 3 to secure the specimen 3; and a polytetrafluoroethylene pulley 213, mechanically connected to the adjustable block assembly and configured to adjust the distance between the two blocks 212 according to the size of the specimen 3. In this embodiment, the provision of the adjustable block assembly and polytetrafluoroethylene pulley can accommodate specimens of varying sizes and shapes, including but not limited to specimens of various repair materials, ensuring stable fixation of the specimens during corrosion testing, further improving the accuracy and safety of the test.

[0061] Specifically, if Figure 2 and Figure 5 As shown, there are multiple specimens 3, and each specimen 3 is separated by an anti-corrosion fixing plate 214. An adjustable block group is provided inside the specimen placement chamber 21, and a polytetrafluoroethylene pulley 213 is provided under the adjustable block group. The polytetrafluoroethylene pulley 213 slides with the U-shaped guide rail 215, and can adjust the distance between the two blocks 212 according to the size of the specimen 3. The adjustment stroke of the block 212 is 50mm-200mm.

[0062] Specifically, if Figure 2 and Figure 4 As shown, the specimen placement chamber 21 is provided with two sets of transverse supports 216 , and the specimen placement chamber 21 and the solution circulation chamber 22 are separated by an air-permeable partition 23 .

[0063] Specifically, if Figure 1 As shown, the environmental simulation test box 1 is supported by a support 10 .

[0064] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 6 This is a hardware structure block diagram of a mobile terminal for a corrosion test method of a cable tunnel repair material according to an embodiment of the present invention. Figure 6 As shown, the mobile terminal may include one or more ( Figure 6 Only one is shown) a processor 102 (the processor 102 may include but is not limited to a microprocessor MCU or a programmable logic device FPGA and other processing devices) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It will be understood by those skilled in the art that Figure 6 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 6 More or fewer components than shown, or with Figure 6 Different configurations shown.

[0065] Memory 104 can be used to store computer programs, such as application software programs and modules, such as the computer program corresponding to the corrosion testing method for cable tunnel repair materials in the embodiments of the present invention. Processor 102 executes the computer programs stored in memory 104 to execute various functional applications and data processing, thereby implementing the aforementioned method. Memory 104 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 104 may further include memory remote from processor 102, which can be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof. Transmission device 106 is used to receive or transmit data via a network. Specific examples of such networks may include a wireless network provided by the mobile terminal's telecommunications provider. In one example, transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0066] In this embodiment, a corrosion testing method for cable tunnel repair materials is provided that runs on a mobile terminal, a computer terminal, or a similar computing device. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0067] Figure 7 This is a flow chart of a corrosion test method for a cable tunnel repair material according to an embodiment of the present application. The method is applicable to any of the above-mentioned corrosion test equipment for cable tunnel repair materials, such as Figure 7 As shown, the method includes the following steps:

[0068] Step S201: placing a specimen in a specimen placement chamber, controlling a second supply structure to deliver a second etching solution to the specimen placement chamber to chemically etching the specimen, and controlling a first supply structure to deliver a first etching solution to a solution circulation chamber to cause the first etching solution to generate etching gas to perform gas etching on the specimen.

[0069] Step S202: Control the current generating structure to provide current to the test piece to accelerate the chemical corrosion of the test piece.

[0070] According to the above embodiment, a specimen is first placed in a specimen placement chamber, the second supply structure is controlled to deliver the second corrosive solution to the specimen placement chamber to chemically corrode the specimen, and the first supply structure is controlled to deliver the first corrosive solution to the solution circulation chamber so that the first corrosive solution generates corrosive gas to corrode the specimen. Then, the current generating structure is controlled to supply current to the specimen to accelerate the chemical corrosion of the specimen. Compared with the existing cable tunnel repair material corrosion test equipment, which has a single function and poor coupling of environmental parameters, resulting in low simulation accuracy and test efficiency of material corrosion tests, the present application separately controls the second supply structure to deliver the second corrosive solution to the specimen placement chamber and the first supply structure to deliver the first corrosive solution to the solution circulation chamber, thereby simulating chemical corrosion and gas corrosion simultaneously. The current generating structure provides current to the specimen to simulate electrochemical corrosion, thus achieving simulation of a multi-factor coupled environment. It can largely simulate the corrosion environment in an actual underground tunnel. The degree of simulation of the working environment is high, ensuring high simulation accuracy of the corrosion test and high accuracy of the test results. In addition, the corrosion test method of the present application is simple, convenient, and easy to operate, ensuring high test efficiency.

[0071] Specifically, chemical corrosion results from direct contact with the second corrosive solution, while gaseous corrosion is caused by corrosive gas generated by decomposition of the first corrosive solution in the solution circulation chamber.

[0072] Specifically, the specific steps of the corrosion test method are:

[0073] Step 1: Specimen installation and electrical circuit construction: Adjust the spacing between the symmetrically arranged blocks in the specimen placement chamber according to the specimen size, and fix the specimen with built-in steel bars between the blocks; connect the anode output terminal of the current signal generator to the steel bars inside the specimen, and connect the current cathode plate to the cathode output terminal of the current signal generator via a wire. The steel bars inside the specimen are also connected to the current cathode plate via a wire;

[0074] Step 2, setting environmental parameters: close the sealed hatch of the corrosion reaction structure, set the temperature range of the specimen placement chamber to 20°C-40°C, the humidity range to 60%RH-95%RH, and use the carbon dioxide release structure to adjust the CO2 concentration to 0.5%vol-5%vol;

[0075] Step 3, corrosive medium injection and mixing: inject the microbial culture solution and the salt solution into the first supply structure and the second supply structure respectively, start the stirrer at a speed of 200-500 rpm and stir for 3-5 minutes, then open the first anti-corrosion butterfly valve to allow the corrosive medium to enter the specimen placement chamber;

[0076] Step 4: Constant temperature and humidity parameter measurement and control: Start the constant temperature and humidity adjustable water tank and set the water temperature to 25±0.5°C and the humidity to 90±5%RH using a PID (Proportional Integral Derivative) controller.

[0077] Step 5: Current accelerated corrosion: Use a current signal generator to load a DC or pulse current that simulates the working conditions, with a current density of 0.1-2 mA / cm 2 , forming an electrochemical corrosion circuit from the steel bar inside the specimen → current signal generator → current cathode plate;

[0078] Step 6, termination of the test and waste liquid treatment: After the test is completed, start the liquid pump to transport the waste liquid through the third pipeline to the waste liquid cleaning box for neutralization treatment, and start the gas pump to transport the harmful gas through the fourth pipeline to the gas collection box for neutralization treatment.

[0079] Specifically, the present invention also provides a method for using a corrosion test device, and the specific steps are as follows:

[0080] (1) Fixing the concrete specimen and connecting the wire: According to the size of the specimen, move the distance between the blocks, place the specimen in it, rotate the card to fit into the card slot, fix the specimen, and lead a wire from the steel bar inside the specimen to the anode output terminal of the current signal generator;

[0081] (2) Setting of simulated gas environment: After the specimen is fixed, the specimen placement chamber is closed, and the temperature, humidity, and carbon dioxide concentration of the simulated environment are set through the distributed temperature and humidity sensor group, carbon dioxide release structure, and gas concentration detection structure;

[0082] (3) Preparation of microbial culture medium and temperature and humidity control: Sulfate-reducing bacteria ingredients: 0.5g beef extract, 1.0g peptone, 0.5g sodium chloride, 100ml distilled water, pH 7.2-7.5; Sulfate-reducing bacteria preparation method: heat to dissolve, adjust pH, divide into Erlenmeyer flasks, sterilize at 121°C, and autoclave for 20min. Sulfate-reducing bacteria is an anaerobic microorganism that lives in oxygen-deficient and water-rich environments such as soil, seawater, and oil and gas wells. It reduces sulfate to hydrogen sulfide. Depending on the type of sulfate-reducing bacteria, it can be divided into mesophilic and thermophilic types. The mesophilic type is controlled at a temperature between 30-40°C, and the thermophilic type is controlled at a temperature between 55-60°C.

[0083] (4) Setting and generating simulated current: The simulated parameters of the current are set by the current signal generator (e.g., DC 30V, duration 16 hours / day, and power supply for 30 days). After the current signal generator is turned on, the steel bars in the specimen form a loop through the anode output terminal and the current cathode plate. Current flows through the specimen, accelerating the corrosion of the steel bars in the specimen.

[0084] In summary, by adjusting different parameters (different concrete specimens, corrosion solution types and concentrations, current size, gas type, concentration, temperature and humidity, etc.), the complex environment faced by repair materials in actual cable tunnels can be simulated to the maximum extent in indoor tests. This will help researchers and construction personnel engaged in related tunnel engineering fields to further develop repair materials under complex working conditions in tunnel construction projects through this corrosion test equipment, and conduct in-depth analysis and research on the working performance, mechanical properties and durability of repair materials under complex coupling environments.

[0085] The present application also provides a computer program product, including computer instructions, which, when executed by a processor, implement at least the following method steps: Step S201, place a specimen in a specimen placement chamber, control the second supply structure to deliver a second corrosive solution to the specimen placement chamber to chemically corrode the specimen, and control the first supply structure to deliver a first corrosive solution to a solution circulation chamber so that the first corrosive solution generates corrosive gas to perform gas corrosion on the specimen; Step S202, control the current generating structure to provide current to the specimen to accelerate the chemical corrosion of the specimen.

[0086] An embodiment of the present application also provides an electronic device, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for executing the corrosion test of the cable tunnel repair material.

[0087] Obviously, those skilled in the art will appreciate that the various modules or steps of the present invention described above can be implemented using a general-purpose computing device, can be centralized on a single computing device, or can be distributed across a network of multiple computing devices. They can be implemented using program code executable by the computing device, and thus, can be stored in a storage device and executed by the computing device. In some cases, the steps shown or described herein can be performed in a different order than that shown, or can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0088] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0089] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0090] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0091] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0092] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0093] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0094] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media (transitory media), such as modulated data signals and carrier waves.

[0095] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0096] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0097] 1) In the corrosion test equipment of the cable tunnel repair material of the present application, the corrosion test equipment includes an environmental simulation test box for simulating the corrosion environment of the cable tunnel repair material. The environmental simulation test box includes a corrosion reaction structure, a current generating structure, a first supply structure and a second supply structure. The corrosion reaction structure includes a specimen placement chamber and a solution circulation chamber separated by a permeable partition. The specimen placement chamber is used to place the specimen, the solution circulation chamber is used to store the first corrosive solution and generate corrosive gas to provide the above-mentioned corrosive gas to the specimen, the current generating structure is used to provide current to the specimen, the first supply structure is used to transport the first corrosive solution to the solution circulation chamber, and the second supply structure is used to transport the second corrosive solution to the specimen placement chamber. Compared with the existing technology, the cable tunnel repair material corrosion test equipment has a single function and poor coupling of environmental parameters, resulting in low simulation accuracy and test efficiency of material corrosion tests. The present application sets a corrosion reaction structure, a current generating structure, a first supply structure and a second supply structure, which can simultaneously simulate a multi-factor coupling environment including chemical corrosion (second corrosion solution), electrochemical corrosion (application of current) and gas corrosion (corrosive gas generated by the first corrosion solution), thereby realizing the simulation of a multi-factor coupling environment and simulating the corrosion environment in an actual underground tunnel to the greatest extent. The degree of simulation of the working environment is high, ensuring the simulation degree of the corrosion test and the accuracy of the test results. Moreover, the corrosion test equipment of the present application is simple, convenient and easy to operate, and the coordination of each link is good, ensuring high test efficiency.

[0098] 2) In the corrosion test method of the cable tunnel repair material of the present application, the specimen is first placed in the specimen placement chamber, and the second supply structure is controlled to deliver the second corrosive solution to the specimen placement chamber to chemically corrode the specimen, and the first supply structure is controlled to deliver the first corrosive solution to the solution circulation chamber so that the first corrosive solution generates corrosive gas to perform gas corrosion on the specimen, and then the current generating structure is controlled to provide current to the specimen to accelerate the chemical corrosion of the specimen. Compared with the existing technology, in which the cable tunnel repair material corrosion test equipment has a single function and poor coupling of environmental parameters, resulting in low simulation accuracy and test efficiency of the material corrosion test, the present application controls the second supply structure to deliver the second corrosive solution to the specimen placement chamber, and the first supply structure to deliver the first corrosive solution to the solution circulation chamber, respectively, which can simulate chemical corrosion and gas corrosion at the same time, and provide current to the specimen through the current generating structure to simulate electrochemical corrosion, thereby realizing the simulation of a multi-factor coupling environment and simulating the corrosion environment in an actual underground tunnel to the greatest extent. The degree of simulation of the working environment is high, ensuring the simulation degree of the corrosion test and the accuracy of the test results. Moreover, the corrosion test method of the present application is simple, convenient and easy to operate, ensuring high test efficiency.

[0099] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A corrosion test equipment for cable tunnel repair materials, characterized in that: The environmental simulation test chamber is used to simulate the corrosion environment of the cable tunnel repair material. The environmental simulation test chamber is a closed chamber and includes: A corrosion reaction structure, comprising a specimen placement chamber and a solution circulation chamber, wherein the specimen placement chamber and the solution circulation chamber are separated by a gas-permeable partition, the specimen placement chamber being used to place a specimen, and the solution circulation chamber being used to store a first corrosive solution and generate corrosive gas to provide the corrosive gas to the specimen, wherein the specimen is a repair material for a cable tunnel; a current generating structure, located on one side of the specimen placement chamber, and configured to provide current to the specimen; a first supply structure, located on one side of the solution circulation tank, and configured to deliver the first corrosive solution to the solution circulation tank; The second supply structure is located at one side of the specimen placement chamber, and is used to deliver a second corrosion solution to the specimen placement chamber.

2. The corrosion testing equipment for cable tunnel repair materials according to claim 1, characterized in that: The first corrosion solution includes a microbial culture solution, the second corrosion solution includes a salt solution, and the environmental simulation test box further includes: A gas environment structure is located on one side of the specimen placement chamber and is used to monitor the temperature, humidity and gas concentration in the environmental simulation test chamber; The corrosion liquid processing structure includes a waste liquid cleaning box and a gas collection box. The waste liquid cleaning box is connected to the solution circulation tank and is used to purify the waste liquid generated by the corrosion test. The gas collection box is connected to the specimen placement tank and is used to collect the gas generated by the corrosion test.

3. The corrosion testing equipment for cable tunnel repair materials according to claim 1, characterized in that: The current generating structure includes a current signal generator, one end of the current signal generator is electrically connected to the test piece, and the other end of the current signal generator is used to be electrically connected to the electrode plate. The output frequency of the current signal generator is 0.1Hz-100kHz, and the output current is 0A-10A.

4. The corrosion testing equipment for cable tunnel repair materials according to claim 1, characterized in that: The material of the box body of the environmental simulation test box includes transparent acrylic and stainless steel, the interlayer of the environmental simulation test box is filled with polyurethane material, the specimen placement chamber includes a sealed observation window, and the sealed observation window is used to observe the corrosion condition of the specimen. The material of the sealed observation window includes polycarbonate, and the light transmittance of the sealed observation window is ≥90%.

5. The corrosion testing equipment for cable tunnel repair materials according to claim 2, characterized in that: The gas environment structure includes: A carbon dioxide release structure, used to release carbon dioxide into the specimen placement chamber and adjust the concentration of the released carbon dioxide according to a preset carbon dioxide concentration; A distributed temperature and humidity sensor group, comprising a plurality of temperature and humidity sensors, at least two of which are of unequal lengths, wherein the probes of the temperature and humidity sensor group are made of polyimide, and wherein the temperature detection accuracy of the temperature and humidity sensor group is -20°C to 120°C, and the humidity detection accuracy of the temperature and humidity sensor group is -2%RH to 2%RH; The gas concentration detection structure comprises an electrochemical sensor, and the electrochemical sensor is used to detect the concentration of carbon dioxide and the concentration of the corrosive gas.

6. The corrosion testing equipment for cable tunnel repair materials according to claim 1, characterized in that: The environmental simulation test chamber also includes: A constant temperature and humidity adjustable water tank is located on a side of the solution circulation chamber away from the specimen placement chamber, and is used to maintain the temperature and humidity in the environmental simulation test chamber at a preset temperature and humidity.

7. The corrosion testing equipment for cable tunnel repair materials according to claim 1, characterized in that: The test piece placement chamber comprises: An adjustable stopper group, comprising two stops, the two stops being respectively located on both sides of the specimen to fix the specimen; A polytetrafluoroethylene pulley is mechanically connected to the adjustable stop block group and is used to adjust the distance between the two stop blocks according to the size of the test piece.

8. A corrosion test method for cable tunnel repair materials, characterized in that: The method is applied to the corrosion test equipment for cable tunnel repair materials according to any one of claims 1 to 7, and the method comprises: Placing a specimen in a specimen placement chamber, controlling the second supply structure to deliver a second etching solution to the specimen placement chamber to chemically etching the specimen, and controlling the first supply structure to deliver a first etching solution to a solution circulation chamber so that the first etching solution generates etching gas to perform gas etching on the specimen; The current generating structure is controlled to provide current to the test piece to accelerate the chemical corrosion of the test piece.

9. A computer program product comprising computer instructions, characterized in that When the computer instructions are executed by a processor, the corrosion test method for cable tunnel repair materials described in claim 8 is implemented.

10. An electronic device, characterized in that: include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for performing a corrosion test of a cable tunnel repair material according to claim 8.

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