A thermal cycle-seawater corrosion condition coupling test device and method for high-temperature parts of amphibious vehicles

Abstract

The present invention discloses a thermal cycle-seawater corrosion condition coupling test device and method for high-temperature parts of amphibious vehicles. A sample installation part is arranged above the control cabinet, and the sample installation part is used to place the sample. A circulating heating system is arranged above the sample installation part, and the circulating pipeline of the circulating heating system is connected to the sample; the method steps include: connecting the holes on the sample to the air supply pipeline and the return pipeline, controlling the circulating heating system to operate according to the set program, and the generated high-temperature air enters the inner cavity of the sample and flows back along the return pipeline; controlling the spraying system to spray according to the set process one; and / or controlling the water supply system to operate according to the set process two to inject a set amount of test water into the open tank. It is convenient to assess the corrosion resistance of high-temperature component materials, coating processes, etc. of amphibious vehicles such as mufflers and exhaust pipes in humid and hot marine atmosphere environments, immersion in seawater, and seawater spraying environments, as well as the degree of influence of corrosion on the performance and functional indicators of high-temperature parts.

Description

Technical Field

[0001] The present invention belongs to the technical field of environmental testing of amphibious vehicle structural parts, and in particular relates to a thermal cycle-seawater corrosion condition coupling test device and method for high-temperature parts of amphibious vehicles. Background Art

[0002] High-temperature components such as mufflers and exhaust pipes are important parts of amphibious military vehicles. Under the coupling of humid and hot marine atmosphere, seawater and high-temperature working conditions, their surface coatings and materials are very prone to environmental damage such as peeling, blistering, and substrate corrosion, which seriously affects the normal use of the vehicle.

[0003] At present, the adaptability of high-temperature components of amphibious vehicles to the hot and humid marine environment is mainly tested and assessed in accordance with standards such as GJB 150.11A-2009 "Military Equipment Laboratory Environmental Test Methods Part 11 Salt Spray Test", GB / T 24517-2009 "Corrosion of Metals and Alloys Outdoor Cyclic Spray Exposure Test Methods", and GJB 8893-2017 "Military Equipment Natural Environment Test Methods". However, the aforementioned test methods can only assess the environmental adaptability of high-temperature components under normal temperature conditions, and do not consider the high-temperature working conditions of high-temperature components during use and their coupling effects with natural environments such as hot and humid atmosphere and seawater, resulting in the inability to accurately characterize the environmental adaptability of high-temperature components in service.

[0004] More importantly, the existing test equipment and test methods cannot accurately simulate the rapid cooling conditions experienced by high-temperature components, and cannot flexibly and quickly switch between the immersion condition and the high-temperature condition experienced by the high-temperature components without changing the workpiece posture. Summary of the invention

[0005] In view of the technical problems mentioned in the background technology, the purpose of the present invention is to provide a thermal cycle-seawater corrosion condition coupling test device for high-temperature parts of amphibious vehicles, and an accelerated test method for high-temperature components of amphibious vehicles in a hot and humid environment.

[0006] The present invention adopts the following technical solution.

[0007] A thermal cycle-seawater corrosion condition coupling test device for high-temperature parts of an amphibious vehicle comprises a control cabinet, a sample mounting portion is arranged above the control cabinet, the sample mounting portion is used to place a sample, a circulating heating system is arranged above the sample mounting portion, and a circulating pipeline of the circulating heating system is connected to the sample.

[0008] Furthermore, the sample installation part includes a control cabinet top plate, and a baffle is arranged on the periphery of the control cabinet top plate. The baffle can move up and down along the control cabinet top plate under the action of external force, and the control cabinet top plate and the baffle together form an open groove, and the sample is placed in the open groove. With such a solution, the immersion condition and the high temperature condition experienced by the high-temperature component can be flexibly and quickly switched without changing the posture of the workpiece.

[0009] Furthermore, the baffle is connected to a lifting mechanism, and the lifting mechanism is used to control the baffle to be lifted to a target height and then fixed.

[0010] Furthermore, two nozzles are provided on the top plate of the control cabinet, and the nozzles are connected to a water supply system. When the water supply system is turned on, the water supply system injects the test seawater into the open tank. With such a solution, the rapid cooling condition experienced by the high-temperature components can be accurately simulated.

[0011] Furthermore, a spray system is provided above the sample installation part, and the spray system is used to spray the sample. The water tank of the spray system is provided in the control cabinet, and the pipe mouth is connected to the water tank. Such a solution can not only spray the sample smoothly and evenly, but also save space and facilitate the recycling of experimental seawater.

[0012] Furthermore, the circulating heating system includes a heating module, an air supply pipeline and a return pipeline, and one end of the air supply pipeline and the return pipeline are connected to the holes on the sample (such as the air inlet and air outlet of the sample); the air outlet of the air supply pipeline is close to the bottom of the sample, and the air inlet of the return pipeline is located at the top of the sample.

[0013] Furthermore, the lifting mechanism includes two sets of screw lifting mechanisms, each set of screw lifting mechanisms is equipped with a set of guide rods, and the two sets of screw lifting mechanisms and the two guide rods are located at the four corners of the control cabinet. With such a solution, the stability of the baffle during the lifting process can be ensured without affecting the convenience of operating the control cabinet.

[0014] One of the methods for accelerating the wet heat environment test of high temperature components of an amphibious vehicle using the above-mentioned device comprises the following steps: Step 11, controlling the lifting rods of the two sets of screw lifting mechanisms to descend synchronously until the top edge of the baffle is lower than the top surface of the top plate of the control cabinet; Step 12, placing the sample in an open tank; Step 13, connecting the holes on the sample to the gas supply pipeline and the return pipeline, so that the gas supply pipeline, the return pipeline, the sample and the heating furnace of the circulating heating system together constitute a circulating air flow channel; Step 14, controlling the lifting rods of the two sets of screw lifting mechanisms to rise synchronously until the top edge of the baffle rises to the target position; Step 15, controlling the circulating heating system to run according to the set program, the generated high-temperature air enters the sample cavity and flows back along the reflux pipeline to fully utilize the heat; Step 16, controlling the spraying system to spray according to the set process one; and / or controlling the water supply system to operate according to the set process two to inject a set amount of test seawater into the open tank; When spraying is required, the sample is heated first, and when the air inlet of the sample reaches the predetermined temperature, the sample surface is sprayed, and the spraying time is set, and the heating is continued while the spraying is continued; Step 17, after reaching the predetermined spraying time, stop spraying and heating, expose in the atmospheric environment, and perform exposure timing; Step 18, repeating step 15, step 16, and step 17 once or multiple times until the test is completed; Step 19, after the test, turn off the spray system and the circulating heating system, and then evaluate the performance of the sample.

[0015] A second method for accelerating the wet heat environment test of high temperature components of an amphibious vehicle using the above-mentioned device comprises the following steps: Step 1, placing the sample in an open tank; Step 2, connecting the holes on the sample to the gas supply pipeline and the return pipeline, so that the gas supply pipeline, the return pipeline, the sample and the heating furnace of the circulating heating system together constitute a circulating air flow channel; Step 3, controlling the circulating heating system to run according to the set program, and the generated high-temperature air enters the sample cavity and flows back along the reflux pipeline; Step 4, control the spray system to spray according to the set process one; and / or control the water supply system to operate according to the set process two to inject a set amount of test water into the open tank; or, First, heat the sample, wait until the air inlet of the sample reaches a predetermined temperature, then control the water supply system to run according to the set process 2 to inject a set amount of test seawater into the open tank, and start the seawater immersion time, and continue heating while immersing in seawater; after reaching the predetermined seawater immersion test time, drain the seawater in the open tank, stop heating, and expose it to the atmosphere, and start the exposure timer; Step 5, repeat step 3 and step 4 once or multiple times until the test is completed; after the test is completed, turn off the spray system and the circulating heating system, and then evaluate the performance of the sample.

[0016] As a preferred embodiment, the sample is a muffler, an exhaust pipe or other hollow components of an amphibious vehicle.

[0017] Beneficial effects: The scheme of the present invention is used to facilitate the assessment of the corrosion resistance of high-temperature component materials, coating processes, etc. of amphibious vehicle mufflers, exhaust pipes, etc. in a humid and hot marine atmosphere, immersion in seawater, and seawater spraying environments, as well as the degree of influence of corrosion on the performance and functional indicators of high-temperature components. The scheme of the present invention can not only accurately simulate the rapid cooling conditions experienced by high-temperature components, realize seawater-enhanced corrosion and the surface chilling effect of the test piece, but also perform a cyclic heating function on the test to simulate the high-temperature working condition of the test piece, and can flexibly and quickly switch the immersion working condition and high-temperature working condition experienced by the high-temperature component without changing the workpiece posture, and the single switching time can be controlled within two seconds. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the test device in Example 2; Figure 2 Schematic diagram of the cross section of the test device in Example 2; Figure 3 This is a three-dimensional schematic diagram of the test device in Example 1 (the top edge of the baffle is higher than the top surface of the control cabinet top plate); Figure 4 This is a three-dimensional schematic diagram of the test device in Example 1 (the top edge of the baffle is flush with the top surface of the control cabinet top plate); Figure 5 for Figure 4 Schematic side view of . DETAILED DESCRIPTION

[0019] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0020] Combination Figures 3 to 5 As shown, a thermal cycle-seawater corrosion condition coupling test device for high-temperature parts of an amphibious vehicle includes a control cabinet 1, a sample installation portion is arranged above the control cabinet 1, and the sample installation portion is used to place a sample 3 (the sample 3 is a muffler, exhaust pipe or other hollow component of an amphibious vehicle, and the figure schematically shows that four samples 3 are placed on the sample installation portion), and a circulating heating system is arranged above the sample installation portion, and the circulating pipeline of the circulating heating system is connected to the sample 3. Among them, the sample installation portion includes a control cabinet top plate 10, and a baffle 11 is arranged on the periphery of the control cabinet top plate 10. The baffle 11 is a rectangular structure with both the top and the bottom open. The baffle 11 can move up and down along the control cabinet top plate 10 under the action of external force. The control cabinet top plate 10 and the baffle 11 together constitute an open groove 2, and the sample 3 is placed in the open groove 2.

[0021] In this embodiment, the baffle 11 is connected to the lifting mechanism, and the lifting mechanism is used to control the baffle 11 to be lifted to the target height and then fixed; the lifting mechanism includes two sets of screw lifting mechanisms 12, each set of screw lifting mechanisms 12 is equipped with a set of guide rods 7, and the two sets of screw lifting mechanisms 12 and the two guide rods 7 are located at the four corners of the control cabinet 1. Among them, the movable seats of the two sets of screw lifting mechanisms 12 are fixedly connected to the baffle 11, and the sleeve rings fixedly set at the corners of the baffle 11 are set on the guide rods 7. When the screw lifting mechanism 12 is running, the movable seat of the screw lifting mechanism 12 moves up and down along the screw, thereby driving the baffle 11 to move up and down synchronously. In this embodiment, the baffle 11 of the aforementioned specific structure cooperates with the lifting mechanism to play a role in flexibly and quickly switching the immersion condition and high temperature condition experienced by the high-temperature component without changing the posture of the workpiece, so as to achieve rapid cooling and quenching of the sample 3, which is convenient for accurately simulating the environmental conditions of the sample 3 entering the water and landing.

[0022] In this embodiment, two nozzles 13 are provided on the top plate 10 of the control cabinet, and the nozzles 13 are connected to the water supply system. When the water supply system is turned on, the water supply system can inject test water into the open tank 2; a spray system is provided above the sample installation part, and the nozzle assembly 8 of the spray system is arranged just above the sample installation part, and the nozzle assembly 8 is also connected to the water tank 9 through a water pipe. The spray system is used to spray the sample 3, and the water tank 9 of the spray system is arranged in the control cabinet 1, one of the nozzles 13 is connected to the water tank 9, and the pipeline corresponding to the nozzle is used as a return pipe, and a valve 15 is provided on the return pipe; the other nozzle 13 is connected to the water tank 9 through a pipeline with a water pump 14, and the pipeline corresponding to the nozzle 13 is used as an inlet pipe, and the inner diameter of the inlet pipe is not less than 10cm. When the water pump 14 is turned on, the test water can be quickly injected into the open tank 2 through the inlet pipe; when the water pump 14 is turned off and the valve 15 is opened, the test water in the open tank 2 can be quickly recovered to the water tank 9 through the return pipe.

[0023] In this embodiment, the circulating heating system includes a heating module 6, an air supply pipeline 4 and a return pipeline 5. The heating module 6 is installed on a bracket. One end of the air supply pipeline 4 and the return pipeline 5 are connected to the holes on the sample 3 (the air supply pipeline 4 is connected to the air inlet of the sample 3, and the return pipeline 5 is connected to the air outlet of the sample 3); the air outlet of the air supply pipeline 4 is close to the bottom of the sample 3, and the air inlet of the return pipeline 5 is located at the top of the sample 3.

[0024] In the specific application scheme, the spray system includes pipeline and nozzle assembly 8, water tank 9, and water pump. The requirements that the spray system needs to meet include: each component should be made of materials that are resistant to test water and humid and hot marine atmosphere; the nozzle aperture is 0.05mm~0.5mm, the nozzle spray angle is adjustable by ±15°, the number of nozzles is determined according to the number of test samples, and each sample is equipped with 2~4 nozzles. The height of the nozzle from the test sample is 300mm~600mm, which can ensure that the test water is evenly sprayed onto the sample surface; the volume of the water storage tank 9 is not less than 0.4m 3 The recommended power of the water pump is not less than 0.5kW, the minimum pressure of the test water reaching the nozzle is 500kPa, and the water spray distance is not less than 3m. The test water is seawater that has been stored for no more than 20 days, and the seawater should be filtered through a 200-mesh filter to remove sediments, suspended matter, and impurities with a diameter greater than 0.1mm in the seawater.

[0025] In the specific application scheme, the main technical requirements of the circulation heating system include: being able to heat 1 to 4 samples at the same time; having temperature adjustment and display functions; the inlet temperature of each test piece is not less than 500℃; the recommended total air flow rate is not less than 300m 3 / h; the time from the beginning of heating to temperature equilibrium is no more than 90min; all components are made of corrosion-resistant and high-temperature resistant materials, and the pipelines are wrapped with thermal insulation materials.

[0026] In addition, the highest temperature of the sample in the vehicle should be used as the test heating temperature; the average time of amphibious vehicles training in seawater every day should be used as the continuous heating and spraying time of the test piece every day. If the average time of amphibious vehicles training in seawater every day cannot be determined, the recommended continuous heating and spraying time is 4 hours per day or 8 hours every two days; the recommended spraying rate of test water is 140L / (m 2 .h), spray continuously for a predetermined time in each cycle and heat at the same time; in each cycle, the rest of the time except continuous heating and spraying is static exposure; the total test time is recommended to be no less than 30 days.

[0027] One of the methods for accelerating the wet heat environment test of high temperature components of an amphibious vehicle using the test device of this embodiment comprises the following steps: Step 11, control the lifting rods of the two sets of screw lifting mechanisms 12 to descend synchronously until the top edge of the baffle 11 is lower than the top surface of the control cabinet top plate 10 (or until the top edge of the baffle 11 is flush with the top surface of the control cabinet top plate 10). The state at this time is as follows: Figure 4 and Figure 5 As shown; Step 11, placing the sample 3 in the open tank 2; Step 12, connecting the holes on the sample 3 to the gas supply pipeline 4 and the return pipeline 5, so that the gas supply pipeline 4, the return pipeline 5, the sample 3 and the heating furnace of the circulation heating system together constitute a circulation airflow channel; Step 13, control the lifting rods of the two sets of screw lifting mechanisms 12 to rise synchronously until the top edge of the baffle 11 rises to the target position, at which time the top edge of the baffle 11 is higher than the top surface of the control cabinet top plate 10 (such as Figure 3 shown); Step 14, controlling the circulating heating system to run according to the set program, and the generated high-temperature air enters the inner cavity of the sample 3 and refluxes along the reflux pipeline 5; Step 15, control the spray system to spray according to the set process 1; and / or control the water supply system to operate according to the set process 2 to inject a set amount of test water into the open tank 2; Step 16, when spraying is required, the sample 3 is first heated, and when the air inlet of the sample 3 reaches a predetermined temperature, the surface of the sample 3 is sprayed, and the spraying time is set, and the heating is continued while the spraying is continued; Step 17, after reaching the predetermined spraying time, stop spraying and heating, expose in the atmospheric environment, and perform exposure timing; Step 18, repeating step 15, step 16, and step 17 once or multiple times until the test is completed; Step 19, after the test, turn off the spray system and the circulating heating system, and then evaluate the performance of sample 3.

[0028] During use: when it is necessary to quickly cool the sample 3 without changing the workpiece posture, the water pump 14 can be opened while the valve 15 is closed, so that the test water in the water tank 9 can be quickly injected into the open groove 2 within five seconds; when it is necessary to switch the sample 3 from the water-cooled state (the state of the sample being immersed in test water) to the non-water-cooled state without changing the workpiece posture, it is only necessary to control the movable seat of the screw lifting mechanism 12 to descend quickly, and at the same time close the water pump 14 (open the valve 15 when necessary), so that the test water in the open groove 2 can be drained in an instant (during the descent of the movable seat, the baffle 11 descends synchronously, and the test water is mainly discharged from the top edge of the baffle 11, which can be completely discharged within two seconds), thereby realizing flexible and rapid switching between the immersion condition and the high temperature condition experienced by the high-temperature component.

[0029] The scheme of this embodiment is adopted to facilitate the assessment of the corrosion resistance of high-temperature component materials, coating processes, etc. of amphibious vehicle mufflers, exhaust pipes, etc. in a humid and hot marine atmosphere environment, a seawater immersion environment, and a seawater spraying environment, as well as the degree of influence of corrosion on the performance and functional indicators of high-temperature components. The scheme can not only accurately simulate the rapid cooling conditions experienced by high-temperature components, realize seawater-enhanced corrosion and the chilling effect and rapid cooling of the test piece surface, but also perform a cyclic heating function on the test to simulate the high-temperature working condition of the test piece, and can flexibly and quickly switch the immersion working condition and high-temperature working condition experienced by the high-temperature component without changing the workpiece posture, and the single switching time can be controlled within two seconds. Example 2

[0030] A thermal cycle-seawater corrosion condition coupling test device for high-temperature parts of an amphibious vehicle, referring to Example 1, is different from Example 1 in that: Figure 1 and Figure 2 As shown, the lifting mechanism is omitted.

[0031] A second method for accelerating the wet heat environment test of high temperature components of an amphibious vehicle using the test device of this embodiment comprises the following steps: Step 1, placing the sample 3 in the open tank 2; Step 2, connecting the holes on the sample 3 to the gas supply pipeline 4 and the return pipeline 5, so that the gas supply pipeline 4, the return pipeline 5, the sample 3 and the heating furnace of the circulation heating system together constitute a circulation airflow channel; Step 3, controlling the circulating heating system to run according to the set program, and the generated high-temperature air enters the inner cavity of the sample 3 and refluxes along the reflux pipeline 5; Step 4, first heat the sample 3, wait until the air inlet of the sample 3 reaches a predetermined temperature, then control the water supply system to operate according to the set process 2 to inject a set amount of test seawater into the open tank, and start the seawater immersion timing, while continuing to heat the seawater; after reaching the predetermined seawater immersion test time, drain the seawater in the open tank, stop heating, and expose it to the atmospheric environment, and start the exposure timing; Step 5, repeat step 3 and step 4 once or multiple times until the test is completed; after the test is completed, turn off the spray system and the circulating heating system, and then evaluate the performance of the sample.

Claims

1. A thermal cycle-seawater corrosion condition coupling test device for high-temperature parts of an amphibious vehicle, comprising a control cabinet (1), characterized in that: A sample mounting portion is provided above the control cabinet (1), the sample mounting portion being used to place a sample (3), and a circulating heating system is provided above the sample mounting portion, the circulating pipeline of the circulating heating system being connected to the sample (3).

2. The thermal cycle-seawater corrosion condition coupling test device for high-temperature parts of amphibious vehicles according to claim 1 is characterized in that: The sample installation portion comprises a control cabinet top plate (10), a baffle plate (11) is arranged on the periphery of the control cabinet top plate (10), the baffle plate (11) can move up and down along the control cabinet top plate (10) under the action of an external force, and the control cabinet top plate (10) and the baffle plate (11) together form an open groove (2), and the sample (3) is placed in the open groove (2).

3. The thermal cycle-seawater corrosion condition coupling test device for high-temperature parts of amphibious vehicles according to claim 2 is characterized in that: The baffle plate (11) is connected to a lifting mechanism, and the lifting mechanism is used to control the baffle plate (11) to be lifted to a target height and then fixed.

4. The thermal cycle-seawater corrosion condition coupling test device for high-temperature parts of amphibious vehicles according to claim 2 or 3, characterized in that: Two pipe openings (13) are provided on the top plate (10) of the control cabinet. The pipe openings (13) are connected to a water supply system. When the water supply system is turned on, the water supply system injects test seawater into the open tank (2).

5. The thermal cycle-seawater corrosion condition coupling test device for high-temperature parts of amphibious vehicles according to claim 4 is characterized in that: A spray system is arranged above the sample installation portion, and the spray system is used to spray the sample (3). A water tank (9) of the spray system is arranged in the control cabinet (1), and a pipe port (13) is connected to the water tank (9).

6. The thermal cycle-seawater corrosion condition coupling test device for high-temperature parts of amphibious vehicles according to claim 5 is characterized in that: The circulating heating system comprises a heating module (6), an air supply pipeline (4) and a return pipeline (5), wherein one end of the air supply pipeline (4) and the return pipeline (5) are both connected to a hole on the sample (3); the air outlet of the air supply pipeline (4) is close to the bottom of the sample (3), and the air inlet of the return pipeline (5) is located at the top of the sample (3).

7. The thermal cycle-seawater corrosion condition coupling test device for high-temperature parts of amphibious vehicles according to claim 6 is characterized in that: The lifting mechanism comprises two sets of lead screw lifting mechanisms (12), each set of lead screw lifting mechanisms (12) is equipped with a set of guide rods (7), and the two sets of lead screw lifting mechanisms (12) and the two guide rods (7) are located at four corners of the control cabinet (1).

8. A method for accelerating the wet heat environment test of high temperature components of an amphibious vehicle using the device according to any one of claims 2 to 7, characterized in that the steps include: Step 1, placing a sample (3) in an open tank (2); Step 2, connecting the holes on the sample (3) to the air supply pipeline (4) and the return pipeline (5), so that the air supply pipeline (4), the return pipeline (5), the sample (3) and the heating furnace of the circulating heating system together form a circulating air flow channel; Step 3, controlling the circulating heating system to run according to the set program, and the generated high-temperature air enters the inner cavity of the sample (3) and flows back along the return pipe (5); Step 4, controlling the spraying system to spray according to the set process 1; and / or controlling the water supply system to operate according to the set process 2 to inject a set amount of test seawater into the open tank (2); or, First, heat the sample, wait until the air inlet of the sample reaches a predetermined temperature, then control the water supply system to run according to the set process 2 to inject a set amount of test seawater into the open tank, and start the seawater immersion time, and continue heating while immersing in seawater; after reaching the predetermined seawater immersion test time, drain the seawater in the open tank, stop heating, and expose it to the atmosphere, and start the exposure timer; Step 5, repeat step 3 and step 4 once or multiple times until the test is completed; after the test is completed, turn off the spray system and the circulating heating system, and then evaluate the performance of the sample.

9. A method for accelerating the wet heat environment test of high temperature components of an amphibious vehicle using the thermal cycle-seawater corrosion condition coupling test device for high temperature components of an amphibious vehicle as described in any one of claims 6-7, characterized in that the steps include: Step 11, controlling the lifting rods of the two sets of screw lifting mechanisms (12) to descend synchronously until the top edge of the baffle plate (11) is lower than the top surface of the control cabinet top plate (10); Step 12, placing the sample (3) in the open tank (2); Step 13, connecting the holes on the sample (3) to the air supply pipeline (4) and the return pipeline (5), so that the air supply pipeline (4), the return pipeline (5), the sample (3) and the heating furnace of the circulating heating system together form a circulating air flow channel; Step 14, controlling the lifting rods of the two sets of screw lifting mechanisms (12) to rise synchronously until the top edge of the baffle (11) rises to the target position; Step 15, controlling the circulating heating system to run according to the set program, and the generated high-temperature air enters the inner cavity of the sample (3) and flows back along the return pipe (5); Step 16, controlling the spraying system to spray according to the set process 1; and / or controlling the water supply system to operate according to the set process 2 to inject a set amount of test seawater into the open tank (2); When spraying is required, the sample (3) is first heated, and when the air inlet of the sample (3) reaches a predetermined temperature, spraying is started on the surface of the sample (3), and a spraying timer is set, and heating is continued while spraying continuously; Step 17, after reaching the predetermined spraying time, stop spraying and heating, expose in the atmospheric environment, and perform exposure timing; Step 18, repeating step 15, step 16, and step 17 once or multiple times until the test is completed; Step 19, after the test, turn off the spray system and the circulating heating system, and then evaluate the performance of the sample.

10. The method for accelerating the wet heat environment test of high temperature components of amphibious vehicles according to claim 8 or 9, characterized in that: The sample (3) is a muffler, exhaust pipe or other hollow component of an amphibious vehicle.

Images