A composite environmental corrosion simulation test device
By designing a composite environment corrosion simulation test device, the interaction of multiple environmental factors on deep-sea equipment materials under full operating conditions was simulated, solving the problem that existing devices could not effectively simulate corrosion and improving the accuracy and efficiency of corrosion tests.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINESE PEOPLES LIBERATION ARMY UNIT 92228
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-12
AI Technical Summary
Existing corrosion simulation testing equipment cannot effectively simulate the interaction of multiple environmental factors under full operating conditions of deep-sea equipment, making it difficult to evaluate the durability of materials.
A composite environment corrosion simulation test device is designed, comprising first and second working areas. The sample can be switched between different environments through a lifting device. The first working area is used to simulate the deep sea environment, and the second working area is used to simulate the marine atmospheric environment. By combining temperature, pressure, humidity and ultraviolet light adjustment, corrosion simulation under full operating conditions can be achieved.
It enables accurate and efficient simulation of the corrosion environment of deep-sea equipment materials under all operating conditions, simplifies the sample transfer process, improves test efficiency, and reduces data inaccuracy.
Smart Images
Figure CN224354282U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of material corrosion testing technology, and in particular to a composite environment corrosion simulation test device. Background Technology
[0002] Deep-sea equipment is crucial for ocean exploration. The key materials used in its manufacture require thorough corrosion simulation tests to ensure stable operation and sufficient service life. However, typical deep-sea equipment, such as submersibles, operates in complex environments, navigating between deep sea and sea surface. This results in the interaction of multiple environmental factors, including operating entirely in the deep sea and partially in the marine atmosphere, making them highly susceptible to corrosion. Current corrosion simulation devices can only simulate single environments and cannot effectively simulate the full operational conditions of deep-sea equipment, hindering the evaluation of the impact of multiple environmental factors on the durability of deep-sea equipment materials.
[0003] Therefore, how to simulate the corrosion environment of deep-sea equipment materials under all operating conditions and maintain the accuracy and efficiency of corrosion tests is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] In view of this, the purpose of this application is to provide a method for simulating the corrosion environment of deep-sea equipment materials under all operating conditions, while maintaining the accuracy and efficiency of corrosion testing.
[0005] To achieve the above objectives, this application provides the following technical solution:
[0006] A composite environmental corrosion simulation test device, comprising:
[0007] A first working area and a second working area, wherein the second working area is vertically positioned at the top of the first working area;
[0008] The reaction vessel includes a sealed vessel body and a vessel lid. The vessel body is located in the first working area and is used for adding solution. The vessel lid is provided with a clamp part, which passes through the vessel lid and is used to fix the sample to be tested. The clamp part is locked to the vessel lid in the vertical direction, and the vessel lid is drivenly connected to a lifting device to switch between the first working area and the second working area.
[0009] The first working area includes a pressure regulating section and a first temperature regulating section to regulate the pressure and temperature inside the vessel; the second working area is provided with a second temperature regulating section, a humidity regulating section and an ultraviolet light regulating section to regulate the temperature, humidity and ultraviolet light intensity of the second working area.
[0010] Preferably, in the above-mentioned composite environment corrosion simulation test device, the lifting equipment includes a lift and a boom. The lift is located at the top of the second working area and drives the vessel lid to lift the fixture part through a plurality of booms.
[0011] Preferably, in the above-mentioned composite environment corrosion simulation test device, the clamping part is rotatably arranged relative to the vessel cover, and the clamping part is driven by a variable frequency drive motor, which is rotatably connected to the clamping part through a coupling and a drive shaft.
[0012] Preferably, in the above-mentioned composite environment corrosion simulation test device, the first temperature regulating unit includes a temperature regulating sleeve fitted on the outer wall of the vessel, the temperature regulating sleeve is connected to the temperature control unit, and the temperature control unit drives the temperature regulating medium to circulate in the temperature regulating sleeve; the temperature regulating sleeve is provided with an inlet and an outlet, and the outlet is located at the top of the temperature regulating sleeve in the vertical direction.
[0013] Preferably, in the above-mentioned composite environment corrosion simulation test device, the pressure regulating part includes a gas supply device connected to the vessel body. The gas supply device includes at least a nitrogen cylinder and an oxygen cylinder arranged in parallel. The nitrogen cylinder and the oxygen cylinder are independently opened and closed and are connected to the interior of the vessel body through the same gas phase valve.
[0014] Preferably, in the above-mentioned composite environment corrosion simulation test device, a sensing unit is provided inside the vessel, and the sensing unit includes at least a pressure sensor, a temperature sensor and a dissolved oxygen sensor.
[0015] Preferably, in the above-mentioned composite environment corrosion simulation test device, a reference electrode and a counter electrode are provided on the vessel lid, and the sample, as the working electrode, is connected to the electrochemical workstation together with the reference electrode and the counter electrode.
[0016] Preferably, in the above-mentioned composite environment corrosion simulation test device, the second temperature regulation unit includes a dry bulb temperature sensor and a temperature adjustment unit, wherein the dry bulb temperature sensor is disposed in the second working area and is communicatively connected to the temperature adjustment unit;
[0017] The humidity control unit includes a wet-bulb temperature sensor and a humidity control unit. The wet-bulb temperature sensor is located in the second working area and is communicatively connected to the humidity control unit.
[0018] Preferably, in the above-mentioned composite environment corrosion simulation test device, the ultraviolet light adjustment unit includes an ultraviolet lamp and an irradiance sensor. The ultraviolet lamp is disposed on at least one inner wall of the second working area, and the irradiance sensor is disposed in the second working area and is communicatively connected to the ultraviolet lamp.
[0019] Preferably, in the above-mentioned composite environment corrosion simulation test device, the temperature control unit includes a heater and a cooler, the heater and the cooler are connected to the same blower, and the outlet direction of the blower is towards the interior of the second working area; the humidity control unit is connected to a water storage tank and includes a humidifier and a dehumidifier connected to the interior of the second working area.
[0020] Preferably, the above-mentioned composite environment corrosion simulation test device includes a controller, which receives feedback information from the dry-bulb temperature sensor, the wet-bulb temperature sensor and the irradiance sensor, and is communicatively connected to the temperature control unit, the humidity control unit and the ultraviolet lamp. The controller's adjustment modes for the temperature, humidity and ultraviolet light intensity in the second working area include at least linear adjustment, step adjustment and wave-like adjustment.
[0021] Preferably, in the above-mentioned composite environment corrosion simulation test device, the side wall of the second working area is also provided with an observation window and a door lock. The observation window is made of transparent material, and the door lock is used to lock or unlock the observation window and the second working area.
[0022] As can be seen from the above technical solution, the composite environmental corrosion simulation test device provided in this disclosure has a first working area and a second working area in the vertical direction, and also includes a reaction vessel. The vessel body is located in the first working area and is used to add the test solution. The vessel lid can be sealed with the vessel body, and by adjusting the temperature, pressure, and dissolved oxygen inside the sealed vessel, the deep-sea environment simulation can be achieved to meet the deep-sea environment corrosion test requirements of materials. At the same time, the clamping part on the vessel lid is locked with the vessel lid in the vertical direction so that it can follow the lifting device's drive belt to rise and fall with the vessel lid. The range of movement of the vessel lid in the vertical direction includes the first working area and the second working area, thereby driving the clamping part to... The sample can be positioned in three states: fully immersed in the first working area, partially located in the first working area and partially located in the second working area, or entirely located in the second working area. The second working area simulates a marine atmospheric environment including heat, humidity, ultraviolet light, and irradiation by adjusting the temperature, humidity, and ultraviolet light intensity. This enables the sample to meet the testing requirements under simulated deep-sea environment, simulated seawater immersion, and simulated marine atmosphere conditions. The switching of the sample between different simulated environments can be achieved simply by using a lifting device. The switching process is seamless and simple to operate, avoiding the problem of inaccurate test data caused by sample transportation, and improving the efficiency of corrosion testing. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the composite environment corrosion simulation test device provided in this disclosure;
[0025] Figure 2 for Figure 1 The left view;
[0026] Figure 3 This is a schematic diagram of the test apparatus when the fixture is located in the second working area.
[0027] Among them, 10-first working area; 20-second working area; 200-controller; 210-dry bulb temperature sensor; 220-heater; 230-cooler; 240-blower; 250-wet bulb temperature sensor; 260-humidity control unit; 270-water storage tank; 280-ultraviolet lamp; 290-irradiance sensor; 30-reaction vessel; 310-vessel body; 320-vessel lid; 330-solution chamber; 40-clamping unit; 41 0-Variable frequency drive motor; 420-Coupling; 430-Drive shaft; 510-Elevator; 520-Boom; 60-Temperature control jacket; 610-Temperature control unit; 620-Liquid inlet; 630-Liquid outlet; 70-Gas supply device; 710-Nitrogen cylinder; 720-Oxygen cylinder; 730-Gas phase valve; 80-Sensing unit; 910-Reference electrode; 920-Counter electrode; 930-Electrochemical workstation; 101-Observation window; 102-Door lock. Detailed Implementation
[0028] The core of this application is to disclose a composite environment corrosion simulation test device to simulate the corrosion environment of deep-sea equipment materials under all operating conditions, while maintaining the accuracy and efficiency of corrosion testing.
[0029] To enable those skilled in the art to better understand the present application, embodiments of the present application will be described below with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model described in the claims. Additionally, the complete content of the structures represented in the following embodiments is not limited to those necessary for the solution of the utility model described in the claims.
[0030] like Figures 1-3As shown, this disclosure provides a composite environment corrosion simulation test device, which includes at least a first working area 10 and a second working area 20 to simulate different corrosion environments. The two working areas are set continuously to reduce the difficulty of transporting the sample under different simulated environments. In some embodiments of this utility model, the second working area 20 is set vertically on top of the first working area 10 so that the sample can be transported between the two working areas through lifting and lowering operations.
[0031] Based on this, the composite environment corrosion simulation test device also includes a reaction vessel 30, which mainly consists of a vessel body 310 and a vessel cover 320, which can be sealed together to provide a closed simulation space. Specifically, the vessel body 310 is installed in the first working area 10, and the vessel body 310 is connected to a solution chamber 330 for adding a prepared corrosion solution into the vessel body 310. Operators can prepare the corrosion solution in the solution chamber 330 in advance according to different marine conditions and simulation requirements, and add it to the vessel body 310 when in use. The lid 320 is provided with a clamp part 40, which passes through the lid 320 and is used to fix the sample to be tested in a part of the lid 320. The sample is installed on the clamp part 40, and when the lid 320 is assembled and connected with the vessel body 310, the sample can be smoothly placed in the vessel body 310 for testing. It should also be noted that the clamp part 40 and the lid 320 are locked in the vertical direction, that is, when the lid 320 is adjusted in the vertical direction, the clamp part 40 can be adjusted in the same direction as the lid 320.
[0032] It should be noted that the lid 320 is also connected to a lifting device, which can be an electric lifting mechanism 510. That is, the lid 320 is raised and lowered by means of a motor-driven lead screw or hydraulic cylinder, thereby driving the clamping part 40 and the sample to switch between the first working area 10 and the second working area 20. It should also be noted that the vessel body 310 is stably set in the first working area 10 and filled with test solution. When the sample needs to be tested in a solution environment, the lid 320 is lowered and assembled with the vessel body 310 so that the sample is immersed in the solution in the vessel body 310. When the sample needs to be tested in a gas environment or under a certain ultraviolet light irradiation environment, the lid 320 is raised to move the sample to the second working area 20 for corrosion testing.
[0033] The above structure enables the transfer of samples between the first working area 10 and the second working area 20. To allow the samples to be simulated in an environment closer to the real ocean, the first working area 10 of the test device provided in this embodiment of the invention further includes a pressure regulating section and a first temperature regulating section. The pressure regulating section can be a system composed of an air pump and a pressure sensor to fill or evacuate the vessel body 310. Combined with real-time monitoring and feedback control of the pressure sensor, the pressure inside the vessel body 310 can be precisely adjusted to simulate corrosion under high or low pressure environments. The first temperature regulating section is used to regulate the temperature of the vessel body 310. After the vessel body 310 is sealed to the vessel cover 320 and the test solution is added to the vessel body 310, the pressure and temperature inside the vessel body 310 can be adjusted through the pressure regulating section and the first temperature regulating section to simulate the deep-sea environment and test the samples.
[0034] Furthermore, the second working area 20 is equipped with a second temperature regulation unit, a humidity regulation unit 260, and an ultraviolet light regulation unit. It should be noted that the second working area 20 does not contain any solution; it is a gaseous environment. The second temperature regulation unit is used to regulate the temperature of the gaseous environment within the second working area 20. The humidity regulation unit 260 can be configured as a humidifier and a dehumidifier. The humidifier increases the humidity within the second working area 20 through spraying or steam generation, while the dehumidifier reduces the humidity through adsorption or condensation. The ultraviolet light regulation unit simulates different intensities of ultraviolet light environments by adjusting the intensity of ultraviolet light, thus studying the effect of ultraviolet light on material corrosion.
[0035] The second working zone 20 is used to simulate the corrosion performance of samples under humid and hot ultraviolet irradiation. It should be noted that the sample can simulate different test environments when located in the first working zone 10 and the second working zone 20, and the switching process is simple. Furthermore, when the sample is partially outside the vessel 310 and partially inside, it can simulate the corrosion rate of the sample under seawater immersion conditions. The switching between these three working environments can smoothly simulate the environmental conditions encountered by marine equipment during reciprocating snorkeling, thereby achieving a more accurate study of the corrosion performance of the sample in a marine environment. Moreover, the switching between the first working zone 10 and the second working zone 20 via a lifting device allows for convenient corrosion testing of samples under different environmental conditions, greatly improving test efficiency and reducing the time cost and operational complexity caused by changing test equipment or environmental conditions.
[0036] Furthermore, in some embodiments of this utility model, the lifting device specifically includes a lifting machine 510 and a boom 520. The lifting machine 510 is stably driven by a motor and is set at the top of the second working area 20 to adjust the operating environment of the vessel lid 320 and the sample through convenient linear drive. At the same time, the lifting machine 510 drives the vessel lid 320 through several booms 520. The several booms 520 are evenly arranged on the vessel lid 320 so that each boom 520 can bear a similar weight of the vessel lid 320. The stroke of the boom 520 satisfies the requirement that the sample on the vessel lid 320 can be completely located inside the vessel body 310 and completely located in the second working area 20. It should also be noted that the lifting platform 510 can be infinitely adjustable, allowing the vessel lid 320 to stop at any position along the stroke of the boom 520. In order to improve the convenience of adjustment, the lifting platform 510 can be set with three positions: the first position, in which the sample is completely inside the vessel body 310 driven by the boom 520; the second position, in which the sample is partially inside the vessel body 310 and partially inside the second working area 20; and the third position, in which the sample is completely inside the second working area 20. This satisfies the need for rapid adjustment of the sample under three simulated environments and reduces the impact of the transfer process on the accuracy of the sample corrosion performance study.
[0037] In the aforementioned embodiments, the clamp part 40 is locked vertically to the vessel lid 320, allowing the sample fixed on the clamp part 40 to move up and down with the vessel lid 320. To further enhance the realism of the simulated environment, in some embodiments of this invention, the clamp part 40 is rotatably mounted around the vessel lid 320. Specifically, the clamp part 40 is connected to a variable frequency drive motor 410, which drives the clamp part 40 to rotate. Specifically, the variable frequency drive motor 410 drives the clamp part 40 to rotate via a coupling 420 and a drive shaft 430. It should be noted that during the deep-sea environment test inside the vessel 310, the variable frequency drive motor 410 drives the clamp part 40 and the sample to rotate, simulating the scouring conditions of seawater on the sample in actual working conditions. Furthermore, the variable frequency drive motor 410 has a speed control function, allowing adjustment of the sample's rotation speed according to experimental requirements, thus studying the corrosion rate of the sample under different solution scouring speeds.
[0038] Furthermore, in some embodiments of this utility model, the first temperature regulating unit includes a temperature regulating sleeve 60 and a temperature control unit 610. The temperature regulating sleeve 60 is arranged around the reactor 30 and is connected to the temperature control unit 610. The temperature regulating sleeve 60 is specifically provided with an inlet 620 and an outlet 630. The temperature control unit 610 is used to drive the temperature regulating medium into the temperature regulating sleeve 60 and circulate it within the temperature regulating sleeve 60, thereby achieving precise control of the internal environment of the reactor 310 through heat transfer. In this structure, the temperature regulating medium enters the temperature regulating sleeve 60 through the inlet 620, circulates within the temperature regulating sleeve 60, and is discharged through the outlet 630. The circulating flow allows the temperature regulating medium to continuously transfer heat or cold to the reactor 310, thereby achieving continuous temperature control within the reactor 310. Specifically, the outlet 630 is located at the top of the temperature regulating sleeve 60 in the vertical direction. This structure is based on the flow characteristics and thermodynamic principles of the temperature regulating medium, so that after the temperature regulating sleeve 60 is filled with the temperature regulating medium, it can be discharged from the outlet 630. This improves the circulation and heating efficiency of the temperature regulating medium, accelerates the transfer of heat or cold, and allows the temperature inside the vessel 310 to reach the set value more quickly and be better maintained within the set temperature range.
[0039] In this embodiment, oil is used as the temperature control medium. Oil, as a common temperature control medium, has the advantage of a large heat capacity and high thermal conductivity, enabling it to quickly transfer heat or cold to the outer wall of the vessel 310, thereby improving the efficiency of temperature control. Furthermore, based on the above embodiment, the temperature range of the temperature control medium is set to -40℃ to 200℃, allowing the testing device to simulate corrosion environments under various temperature conditions, thus meeting the needs of corrosion testing for different materials.
[0040] The pressure regulation section of the first working area 10 mainly includes a gas supply device 70. Specifically, the gas supply device 70 is connected to the interior of the reactor body 310 and includes at least a nitrogen cylinder 710 and an oxygen cylinder 720 connected in parallel. It should be noted that the nitrogen cylinder 710 and the oxygen cylinder 720 are connected in parallel to provide greater flexibility for the experiment by allowing them to be opened and closed independently. They can choose to use nitrogen or oxygen alone, or both gases simultaneously, depending on the experimental requirements. For example, in some experiments, it may be necessary to reduce the oxygen concentration in the reactor 30 to simulate corrosion under low oxygen conditions. This can be achieved by closing the valve of the oxygen cylinder 720 and using only nitrogen. In other experiments, it may be necessary to study the effect of oxygen on the corrosion rate of the sample. This can be achieved by opening the valve of the oxygen cylinder 720 and introducing a certain amount of oxygen into the reactor body 310.
[0041] Furthermore, nitrogen cylinder 710 and oxygen cylinder 720 are connected to the interior of reactor body 310 via the same gas phase valve 730. Gas phase valve 730 controls the gas flow rate and on / off state. By adjusting the opening of gas phase valve 730, the flow rates of nitrogen and oxygen entering reactor body 310 can be precisely controlled. In the gas supply device 70, by independently adjusting nitrogen cylinder 710 and oxygen cylinder 720, pressure regulation within reactor body 30 can be achieved through nitrogen cylinder 710, and dissolved oxygen content within reactor body 310 can be adjusted through oxygen cylinder 720, thereby providing the sample with a richer and more accurate deep-sea simulation environment.
[0042] Furthermore, it should be noted that the experimental apparatus provided in this embodiment of the present invention also includes a sensing unit 80 within the reactor body 310 to provide accurate environmental data detection for the experiment, thereby ensuring the accuracy and reliability of the experiment. In this embodiment, the sensing unit 80 includes at least a pressure sensor, a temperature sensor, and a dissolved oxygen sensor. The pressure sensor monitors the pressure changes within the reactor body 30 in real time. It can communicate with the gas supply device 70 to provide feedback on the pressure parameters within the reactor body 30 and adjust the operating state of the gas supply device 70, thereby simulating different pressure conditions within the reactor body 30. The temperature sensor monitors the temperature changes within the reactor body 30. It can communicate with the temperature control unit 610. Through the temperature sensor, the experimenter can understand the temperature conditions within the reactor body 310 in real time and precisely control the temperature through the temperature regulating sleeve 60 and the temperature control unit 610. The dissolved oxygen sensor is used to monitor the dissolved oxygen level in the solution within the vessel 310. It should be noted that dissolved oxygen is a crucial factor affecting the corrosion process, especially in oxidative corrosion tests, where its concentration directly impacts the corrosion rate of the sample. Through the dissolved oxygen sensor, testers can monitor the dissolved oxygen levels in the solution in real time and adjust the dissolved oxygen level using the gas supply device 70 to meet experimental requirements.
[0043] It should be noted that in some embodiments of this utility model, the test apparatus is also equipped with a four-way valve. The four-way valve provides an opening for the reactor 30 to assemble different spaces. Specifically, a pressure gauge and a safety valve are installed on the branch openings of the four-way valve. The pressure gauge is used to display the pressure inside the reactor 30 in real time, so that the test personnel can intuitively understand whether the pressure inside the reactor 30 is within the safe range, and adjust the gas flow rate or pressure of the gas supply device 70 in a timely manner according to the pressure gauge reading to ensure the smooth progress of the test. The safety valve is used to prevent the reactor 30 from becoming too high and causing danger. When the pressure inside the reactor 30 exceeds the set value of the safety valve, the safety valve will automatically open to release excess gas, thereby reducing the pressure inside the reactor 30 and preventing dangerous situations such as rupture or explosion of the reactor 30 due to excessive pressure.
[0044] Furthermore, in the experimental apparatus provided in this embodiment of the present invention, a reference electrode 910 and a counter electrode 920 are also provided on the lid 320. This electrode arrangement is an important component in electrochemical corrosion testing. The reference electrode 910 and the counter electrode 920 are also coupled with a sample, which serves as the working electrode and is connected together with the reference electrode 910 and the counter electrode 920 to the electrochemical workstation 930 to form a three-electrode electrochemical testing system. It should be noted that electrochemical corrosion testing is a commonly used corrosion research method. By measuring parameters such as the potential difference and current density between electrodes, the electrochemical behavior of materials in a corrosive environment can be studied, thereby gaining a deeper understanding of the corrosion mechanism and corrosion rate of the material. In the above structure, the reference electrode 910 provides a stable potential reference. By measuring the potential of the reference electrode 910, the potential change of the sample in the corrosive environment can be determined. The counter electrode 920 provides a current loop, enabling the electrochemical reaction to occur on the sample surface. Through the synergistic effect of the reference electrode 910 and the counter electrode 920, the electrochemical workstation 930 can monitor the changes in electrochemical parameters of the sample during the corrosion process in real time, such as polarization potential and corrosion current density, and complete the acquisition of experimental data.
[0045] Furthermore, in the experimental apparatus provided in this embodiment of the present invention, the second temperature regulation unit in the second working area 20 mainly includes a dry-bulb temperature sensor 210 and a temperature control unit. The dry-bulb temperature sensor 210 is installed inside the second working area 20 and can be a high-precision platinum resistance temperature sensor to measure the dry-bulb temperature within the second working area 20 in real time. The dry-bulb temperature sensor 210 is also communicatively connected to the temperature control unit to convert the temperature signal into an electrical signal and transmit it to the temperature control unit. The temperature control unit includes a heater 220 and a cooler 230 to achieve temperature rise and temperature drop regulation. The heater 220 uses an electric heating tube to generate heat through current heating, while the cooler 230 can use a semiconductor cooling chip to achieve cooling. It should also be noted that both the heater 220 and the cooler 230 are connected to the blower 240. The blower 240 is directed towards the interior of the second working area 20 so that heat or cold can be evenly distributed within the second working area 20 through the duct design. In order to improve the compactness of the structure, the heater 220 and the cooler 230 are supplied with air through the same blower 240. The wind speed of the blower 240 can be adjusted according to the temperature regulation requirements to ensure the speed and uniformity of temperature regulation.
[0046] The humidity control unit 260 in the second working area 20 mainly includes a wet-bulb temperature sensor 250 and the humidity control unit 260 itself. The wet-bulb temperature sensor 250 is also installed inside the second working area 20 to monitor the humidity status in real time. The wet-bulb temperature sensor 250 is communicatively connected to the humidity control unit 260 to provide feedback on the humidity information within the second working area 20, thereby enabling the humidity control unit 260 to adjust the humidity. Specifically, the humidity control unit 260 includes a humidifier and a dehumidifier. The humidifier is connected to a water tank 270 and can use ultrasonic atomization technology to atomize the water in the water tank 270 into tiny water droplets, which are then sprayed into the second working area 20 through a nozzle to increase the humidity. The dehumidifier can use adsorption dehumidification technology, utilizing a desiccant to adsorb moisture from the air and reduce humidity. Alternatively, the dehumidifier can use condensation dehumidification, condensing the moisture in the air within the second working area 20 to achieve dehumidification. The operating status of the humidifier and dehumidifier is controlled by the humidity regulating unit 260 based on the feedback signal from the wet-bulb temperature sensor 250, ensuring that the humidity in the second working area 20 can be maintained within the set value.
[0047] It should be noted that the second temperature control unit can adjust the temperature in the second working area 20 by adjusting parameters such as refrigerant flow rate and fan speed. The temperature control range of the second working area 20 is -70℃ to 100℃. The humidity control unit 260 uses a humidifier and a dehumidifier to achieve a humidity range of 30%RH to 98%RH in the second working area 20.
[0048] Based on the above embodiments, the ultraviolet light adjustment unit in the second working area 20 includes an ultraviolet lamp 280 and an irradiance sensor 290. The ultraviolet lamp 280 is installed on at least one inner wall of the second working area 20 and uses a high-intensity ultraviolet light source to emit ultraviolet light of a specific wavelength. The number and layout of the lamps can be adjusted according to experimental requirements to ensure uniform distribution of ultraviolet light. In some embodiments, a row of ultraviolet lamps 280 is installed on each of the two inner walls of the second working area 20 to form a uniform illumination environment. The irradiance sensor 290 is also located inside the second working area 20 for real-time measurement of the ultraviolet irradiance intensity. The irradiance sensor 290 is connected to the control circuit of the ultraviolet lamp 280 via a data line. It converts the irradiance signal into an electrical signal and transmits it to the control circuit to provide feedback and adjust the irradiance intensity of the ultraviolet lamp 280. When the irradiance is lower than the set value, the control circuit increases the current or voltage of the ultraviolet lamp 280 to increase the ultraviolet light intensity. When the irradiance is higher than the set value, the control circuit decreases the current or voltage of the ultraviolet lamp 280 to reduce the ultraviolet light intensity.
[0049] Combined with the temperature and humidity control functions of the second working area 20 in the aforementioned embodiments, the second working area 20 can effectively simulate the hot and humid ultraviolet radiation environment in which deep-sea equipment is exposed after it surfaces, thus more closely resembling the actual usage conditions of the material and improving the accuracy of material corrosion performance testing.
[0050] To further enhance the realism of the environmental simulation in the second working area 20, in some embodiments of this invention, the composite environmental corrosion simulation test device also includes a controller 200 to intelligently adjust the temperature, humidity, and ultraviolet light intensity within the second working area 20. Specifically, the controller 200 receives feedback information from the dry-bulb temperature sensor 210, the wet-bulb temperature sensor 250, and the irradiance sensor 290 to uniformly collect and analyze environmental parameters within the second working area 20. Simultaneously, the controller 200 is connected to the temperature control unit, the humidity control unit 260, and the ultraviolet lamp 280 via communication lines. Furthermore, the controller 200 is equipped with multiple adjustment modes, including at least linear adjustment, step adjustment, and wave-like adjustment. Operators can select different adjustment modes according to the needs of the test process to simulate different environmental changes. Specifically, the linear adjustment mode of the controller 200 is to linearly change one or more parameters, such as temperature, humidity, or ultraviolet light intensity, from the initial value to the target value within a set time. For example, when studying the corrosion behavior of a sample in a gradually heating environment, the linear adjustment mode can be selected to keep the humidity and ultraviolet light intensity constant and linearly adjust the temperature from 20°C to 80°C to simulate the corrosion characteristics of the sample during the gradual heating process.
[0051] The step adjustment mode of controller 200 can quickly switch environmental parameters from one value to another to simulate actual working conditions with sudden environmental changes. When studying the corrosion behavior of materials under sudden environmental changes, the step adjustment mode can be selected to quickly switch the temperature from 20℃ to 80℃ to simulate the corrosion characteristics of materials under sudden high-temperature environments.
[0052] The wave-like adjustment mode of the controller 200 is used to study the corrosion performance of materials under repeated changes in two environments, such as the corrosion performance of marine equipment under repeated snorkeling or diurnal changes. For example, when studying the corrosion behavior of a sample under diurnal temperature difference, the wave-like adjustment mode can be selected to set the temperature to diurnal periodic change to simulate the corrosion characteristics of the sample under diurnal temperature difference.
[0053] It should be noted that the adjustment of humidity and ultraviolet light intensity is similar to the temperature adjustment in the aforementioned embodiments, and will not be repeated here. Through the settings of the controller 200, the second working area 20 in the test apparatus can achieve intelligent environmental adjustment. Through various adjustment modes, it can simulate complex environmental changes and meet diverse corrosion test requirements.
[0054] Furthermore, to enhance the intuitiveness of the testing process, in some embodiments of this invention, an observation window 101 and a door lock 102 are also provided on the side wall of the second working area 20. The observation window 101 is installed on the side wall of the second working area 20 and is made of transparent high-strength glass or acrylic material to withstand pressure and temperature changes within the working area. The size of the observation window 101 can be designed according to the testing requirements, and can be designed as a rectangular or circular window to facilitate clear observation of the sample corrosion within the working area by the operator without frequently opening the working area, thus reducing interference with the testing environment. The door lock 102 is used to lock or unlock the observation window 101 and the second working area 20. It can be a mechanical lock or an electronic lock to ensure the sealing of the working area during the test and the convenience of opening the observation window 101 when needed.
[0055] The terms "first," "second," "left side," and "right side," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units may not be defined in the listed steps or units, but may include steps or units not listed.
[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A composite environmental corrosion simulation test device, characterized in that, include: A first working area and a second working area, wherein the second working area is vertically positioned at the top of the first working area; The reaction vessel includes a sealed vessel body and a vessel lid. The vessel body is located in the first working area and is used for adding solution. The vessel lid is provided with a clamp part, which passes through the vessel lid and is used to fix the sample to be tested. The clamp part is locked to the vessel lid in the vertical direction, and the vessel lid is drivenly connected to a lifting device to switch between the first working area and the second working area. The first working area includes a pressure regulating section and a first temperature regulating section to regulate the pressure and temperature inside the vessel; the second working area is provided with a second temperature regulating section, a humidity regulating section and an ultraviolet light regulating section to regulate the temperature, humidity and ultraviolet light intensity of the second working area.
2. The composite environmental corrosion simulation test device as described in claim 1, characterized in that, The lifting equipment includes a lift and a boom. The lift is located at the top of the second working area and drives the kettle lid and the clamping part to rise and fall through a plurality of booms.
3. The composite environmental corrosion simulation test device as described in claim 1, characterized in that, The clamping part is rotatably arranged relative to the vessel lid, and the clamping part is connected to a variable frequency drive motor. The variable frequency drive motor is rotatably connected to the clamping part through a coupling and a drive shaft.
4. The composite environmental corrosion simulation test device as described in claim 1, characterized in that, The first temperature regulating unit includes a temperature regulating sleeve fitted on the outer wall of the vessel. The temperature regulating sleeve is connected to a temperature control unit, and the temperature control unit drives the temperature regulating medium to circulate within the temperature regulating sleeve. The temperature regulating sleeve has an inlet and an outlet, and the outlet is located at the top of the temperature regulating sleeve in the vertical direction.
5. The composite environmental corrosion simulation test device as described in claim 4, characterized in that, The pressure regulating section includes a gas supply device connected to the vessel body. The gas supply device includes at least a nitrogen cylinder and an oxygen cylinder arranged in parallel. The nitrogen cylinder and the oxygen cylinder are opened and closed independently and are connected to the interior of the vessel body through the same gas phase valve.
6. The composite environment corrosion simulation test device as described in claim 1, characterized in that, The vessel body is equipped with a sensing unit, which includes at least a pressure sensor, a temperature sensor, and a dissolved oxygen sensor.
7. The composite environmental corrosion simulation test device as described in claim 1, characterized in that, The reactor lid is equipped with a reference electrode and a counter electrode, and the sample, as the working electrode, is connected to the electrochemical workstation together with the reference electrode and the counter electrode.
8. The composite environmental corrosion simulation test device as described in claim 1, characterized in that, The second temperature regulation unit includes a dry bulb temperature sensor and a temperature adjustment unit. The dry bulb temperature sensor is disposed in the second working area and is communicatively connected to the temperature adjustment unit. The humidity control unit includes a wet-bulb temperature sensor and a humidity control unit. The wet-bulb temperature sensor is located in the second working area and is communicatively connected to the humidity control unit.
9. The composite environmental corrosion simulation test device as described in claim 8, characterized in that, The ultraviolet light adjustment unit includes an ultraviolet lamp and an irradiance sensor. The ultraviolet lamp is disposed on at least one inner wall of the second working area, and the irradiance sensor is disposed in the second working area and is communicatively connected to the ultraviolet lamp.
10. The composite environment corrosion simulation test device as described in claim 8, characterized in that, The temperature control unit includes a heater and a cooler, which are connected to the same blower, and the blower's outlet direction is toward the interior of the second working area; the humidity control unit is connected to a water storage tank and includes a humidifier and a dehumidifier connected to the interior of the second working area.
11. The composite environmental corrosion simulation test device as described in claim 9, characterized in that, The system includes a controller that receives feedback information from the dry-bulb temperature sensor, the wet-bulb temperature sensor, and the irradiance sensor, and is communicatively connected to the temperature control unit, the humidity control unit, and the ultraviolet lamp. The controller's adjustment modes for the temperature, humidity, and ultraviolet light intensity in the second working area include at least linear adjustment, step adjustment, and wave-like adjustment.
12. The composite environmental corrosion simulation test device as described in claim 1, characterized in that, The side wall of the second work area is also provided with an observation window and a door lock. The observation window is made of transparent material, and the door lock is used to lock or unlock the observation window and the second work area.