Simulation device and method for diving suit material performance test in underwater dynamic environment

Abstract

The invention relates to a simulation device and method for testing the performance of a diving suit material in an underwater dynamic environment. The device comprises a temperature control module, a water flow control module, a material mixing module, a temperature measurement module, an information processing module and a clamp module, the water flow control module comprises a water containing pool and a wave making pump. The wave making pump is fixed in the water containing pool and used for adjusting the flow speed of water flow. The temperature control module is connected with the water tank and used for adjusting the temperature of the simulated water area in the water tank; the material mixing module is connected with the water containing pool and is used for preparing simulated water meeting the required water quality and conveying the simulated water into the water containing pool; the clamp module is arranged in the water containing pool and used for clamping diving suit materials. The temperature measuring module is used for measuring the temperature of the two sides of the diving suit material and transmitting the temperature to the information processing module. The information processing module is used for acquiring and recording the temperature, water flow velocity, water quality and test time of the simulated water area. Compared with the prior art, the method has the advantages of flexible adjustment of simulated water area conditions, high reliability of test results, wider application range and the like.

Description

Technical Field

[0001] The present invention relates to a field, and in particular to a simulation device and method for testing the performance of diving suit materials in an underwater dynamic environment. Background Art

[0002] The professional fields of the diving industry include salvaging sunken ships and objects, developing seabed mineral resources, water rescue, disaster relief, bridge and tunnel construction, underwater construction, aquaculture and fishing of aquatic products, municipal construction, scientific experiments, etc. The demand for underwater operations is also increasing, and the number of scenarios where divers are required to operate is also increasing. These application fields have put forward higher requirements on the performance of diving suit materials, such as waterproofing, heat preservation, compression resistance, wear resistance, tear resistance, and elasticity. As an important equipment for divers to work underwater, the thermal insulation, aging resistance, and scour resistance of diving suit materials directly affect the health and work efficiency of divers.

[0003] At present, the testing of diving suit materials includes scientific and systematic testing and evaluation of the physical and mechanical properties (such as tensile strength, tear strength, etc.), waterproof performance, thermal insulation performance, pressure resistance, wear resistance, seam strength, and accessory safety of the materials in a laboratory environment. These tests ensure that the diving suit materials can provide adequate protection and warmth for the wearer during underwater operations or recreational diving, but few tests are specifically conducted to test the actual performance of diving suit materials in an underwater dynamic environment. Therefore, in order to test whether the diving suit materials can meet the requirements of underwater work and study their actual state of underwater work, the underwater environment simulation device is an indispensable and important technical support platform in the field of diving suit material research. Using the underwater dynamic environment simulation device to simulate the actual diving environment, testing the erosion resistance, thermal stability, heat loss rate, aging performance and other indicators of the heating diving suit materials in different underwater environments can help researchers understand and predict the performance of the materials in extreme water conditions to improve the design of diving suit materials. For example, the thermal insulation performance test of the diving suit material needs to be carried out at different water temperatures to verify its warmth effect in the actual diving environment.

[0004] Most of the existing technologies focus on simulating deep-water environments. For example, invention CN107271174A discloses a deep-water environment simulation test bench, which is equipped with a test cabin body, a hatch centering device, a hatch locking ring, a pressurizing device, a cabin test component carrying device, a test bench control cabinet, a test bench frame, and a servo motor drive device with a pressure-compensated oil tank. The test device uses high-pressure lamps, cameras, and sensors to solve the problem of real-time monitoring of the changes in components under water pressure, but cannot control the water temperature and water flow rate in the equipment, and cannot adjust the sample state in time.

[0005] Invention CN112833180B discloses a pressure tank for popular science display of underwater robots capable of simulating the seabed environment, comprising a tank body, a cover body, a locking mechanism, a switch cover mechanism, a base and a carrier installed in the pressure tank, the tank body is fixed to the top of the base, the cover body is set on the top of the tank body, the two ends of the switch cover mechanism are respectively connected to the tank body and the cover body, used for the switch cover of the cover body, the locking mechanism is installed between the tank body and the cover body, used for locking and fixing the cover body, and a water inlet is provided on the side wall of the tank body, and the water inlet is connected to an external high-pressure water pump through a water inlet pipe. The pressure tank for popular science display provided by the invention can simulate different water flow, water temperature and water pressure states in the deep sea, and the pressure tank can be used in the relevant performance detection of underwater robots, and can intuitively experience the working state of light cable underwater robots in deep sea environments, but cannot be changed accordingly according to factors such as water salinity and sediment in different waters.

[0006] However, the above two designs achieve the effect of simulating the deep sea environment by simulating the underwater pressure and water environment of the ocean, but both lack the simulation of the water quality in the water body. The salinity of water bodies in different seas, rivers and lakes varies greatly, and the water temperature varies significantly due to the season and geographical location. In particular, the sediment content in freshwater areas is also higher than that in deep sea areas. These factors have a great impact on the testing of diving suit materials. Therefore, there is an urgent need for an underwater environment simulation device and corresponding testing method suitable for diving suit material testing that simulates different seasonal temperatures, different water flow rates, and different water quality conditions. Summary of the invention

[0007] The purpose of the present invention is to overcome the defects of the above-mentioned prior art that it is unable to simulate the water quality, underwater temperature and water flow velocity in the water area, has a single function and a large difference between the simulated environment and the actual environment, and has a limited simulation test range, and to provide a simulation device and method for testing the performance of diving suit materials in an underwater dynamic environment.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] This solution provides a simulation device for testing the performance of diving suit materials in an underwater dynamic environment, including an underwater environment simulation part and a performance testing part, wherein the underwater environment simulation part includes a temperature control module, a water flow control module and a mixing module; the performance testing part includes a temperature measurement module, an information processing module and a fixture module;

[0010] The water flow control module includes a water storage tank and a wave pump, wherein the wave pump is fixed to one side of the water storage tank and is used to generate water flow and adjust the flow rate of the water flow;

[0011] The temperature control module is connected to the water storage tank and is used to adjust the temperature of the simulated water area in the water storage tank;

[0012] The mixing module is connected to the water storage tank and is used to prepare simulated water that meets the required water quality, transport it to the water storage tank, and adjust the salinity or sediment content of the simulated water area in the water storage tank;

[0013] The clamp module is arranged in the water tank and is used to clamp the diving suit material;

[0014] The temperature measurement module includes a heating power source and a flexible temperature sensor arranged in the diving suit material, the heating power source is fixed on one side of the diving suit material, the flexible temperature sensor is used to measure the temperature on both sides of the diving suit material, and the temperature measurement module is connected to the information processing module;

[0015] The information processing module is used to obtain and record the temperature, water flow velocity, water quality and test time of the simulated water area.

[0016] Preferably, the temperature control module comprises a temperature control water tank, a water outlet pipe and a water inlet pipe, and a water pump is provided in the water storage tank;

[0017] The temperature-controlled water tank is used to adjust the water temperature inside the temperature-controlled water tank. The temperature-controlled water tank is connected to a water storage tank via an outlet pipe. The water pump is arranged inside the water storage tank. One end of the water inlet pipe is connected to the temperature-controlled water tank, and the other end passes through the water storage tank and is connected to the water pump for water circulation between the temperature-controlled water tank and the water storage tank. The outlet pipe and the inlet pipe are respectively connected to the opposite ends of the water storage tank. A first sediment filter is provided in the water storage tank, and the first sediment filter is coated on the outside of the water pump.

[0018] Preferably, a second sediment filter and a flow meter are also provided in the water storage tank; the second sediment filter is coated on the outside of the wave pump; the flow meter is fixed on the inside of the water storage tank to measure the flow rate of the water flow; a magnetic base is provided at the bottom of the wave pump, and a corresponding magnetic suction cup is provided on the outside of the side wall of the water storage tank, and the magnetic base is adsorbed on the magnetic base. The clamp module includes a clamp base and a detachable waterproof sample bag, and a vacuum suction cup is provided at the lower end of the clamp base. The clamp base is adsorbed on the inner wall of the water storage tank through the vacuum suction cup, and the detachable waterproof sample bag is clamped on the clamp base for placing diving suit materials.

[0019] Preferably, the mixing module includes a mixing tank, a stirring structure, and a salt storage tank, a silt storage tank, and a water storage tank arranged side by side, the salt storage tank, the silt storage tank, and the water storage tank are respectively connected to the feed inlet of the mixing tank, the stirring structure is arranged in the mixing tank, and the discharge port of the mixing tank is connected to a water storage tank.

[0020] The present invention also provides a method for simulating a diving suit material performance test in an underwater dynamic environment, which is characterized by comprising the following steps:

[0021] The fixture module is placed in a water tank, the temperature measuring module is attached to the surface of the diving suit material, and the diving suit material is placed on the fixture module;

[0022] The water quality of the simulated water area is adjusted through the mixing module, the temperature of the simulated water area is adjusted by the temperature control module, and the water flow speed of the simulated water area is adjusted in conjunction with the wave-making pump until the initial conditions are met and the test begins;

[0023] The temperature information of the diving suit material is collected through the temperature measurement module and transmitted to the information processing module to calculate the thermal stability of the diving suit material and the heat loss rate of the diving suit material; at the same time, the information processing module records the water flow temperature, water flow velocity, water quality and test time in the simulated water area, which is used to test the anti-scouring performance and aging performance of the diving suit material;

[0024] The salinity or sediment content of the simulated water area is adjusted through the mixing module, the temperature of the simulated water area is adjusted through the temperature control module, and the water flow speed of the simulated water area is adjusted through the wave-making pump, so as to adjust the test environment of the diving suit material.

[0025] Furthermore, the mixing module includes a mixing tank, a stirring structure, and a salt storage tank, a silt storage tank, and a water storage tank arranged side by side. The salt storage tank, the silt storage tank, and the water storage tank are respectively connected to the feed port of the mixing tank. The stirring structure is arranged in the mixing tank. The discharge port of the mixing tank is connected to the water storage tank. The water quality is adjusted by the mixing module in three ways: salinity adjustment, silt content adjustment, and simultaneous adjustment of salinity and silt content.

[0026] The specific steps of salinity adjustment are: calculate the mass of salt and water of the salinity required for the test conditions through the information processing module, add the corresponding mass of salt into the salt storage tank, add the corresponding mass of water into the water storage tank, mix them in the mixing tank, and then transport them to the water storage tank;

[0027] The specific steps of adjusting the sediment content are: calculating the mass of sediment and water required for the test conditions through the information processing module, adding the corresponding mass of sediment to the sediment storage tank, adding the corresponding mass of water to the water storage tank, mixing in the mixing tank, and then transporting to the water storage tank;

[0028] The specific steps for adjusting the salinity and sediment content simultaneously are: calculate the mass of salt, sediment and water required for the test conditions through the information processing module, add the corresponding mass of salt to the salt storage tank, add the corresponding mass of sediment to the sediment storage tank, add the corresponding mass of water to the water storage tank, mix them in the mixing tank, and then transport them to the water storage tank.

[0029] Furthermore, the specific steps of the thermal stability test of the diving suit material include:

[0030] The diving suit material is a rectangular sample. The five-point sampling method is used to determine the temperature measurement point. The flexible temperature sensor is attached to the temperature measurement point, and the heating power source is placed in the diving material. Then the diving suit material is placed in the fixture module and fixed;

[0031] The heating power supply is used to generate heat, and the diving suit material is gradually heated up. The current and voltage at each stage are recorded. The flexible temperature sensor collects temperature information in real time and transmits it to the information processing module. After the heating temperature stabilizes, it is maintained for a period of time to record the temperature change and stable state of the diving suit material.

[0032] The information processing module outputs the temperature change curve and experimental data, and records the maximum heating temperature T after each temperature change curve becomes stable. max and minimum value T min , the temperature difference of heating temperature fluctuation at each point and the average heating temperature fluctuation are calculated to judge the heating stability of diving suit materials;

[0033] The expression of the temperature difference of each point of the diving suit material is:

[0034] ΔT i =|T max -T min |

[0035] Where: ΔT i It indicates the temperature difference of heating fluctuation at each point, in K or °C, i indicates each temperature measurement point;

[0036] The expression of the average heating fluctuation temperature difference of diving suit materials is:

[0037]

[0038] Where: ΔT 总 Indicates the average heating fluctuation temperature difference, in K or °C; ΔT 1-5 Indicates the heating fluctuation temperature difference of the five temperature measuring points.

[0039] Furthermore, the specific steps of the diving suit material heat loss rate test include:

[0040] The information processing module outputs the temperature change curve and experimental data to obtain the temperature difference between the heating surface and the non-heating surface of the diving suit material. The heat loss rate of the diving material at each temperature measurement point is calculated based on the obtained temperature difference, which is used to compare the heat loss of different parts of the diving suit material. The expression of the heat loss rate is:

[0041]

[0042] Where: Q iis the heat loss rate at each point, indicating the amount of heat passing through the material per unit time; k is the thermal conductivity of the material, indicating the ability of the material to conduct heat; A is the cross-sectional area of ​​the heat flow channel, indicating the area through which heat flows; ΔT is the temperature difference, indicating the temperature difference on both sides of the material; D is the thickness of the material, indicating the thickness of the material through which the heat is lost.

[0043] Furthermore, the specific steps of testing the anti-scouring performance of the diving suit material include:

[0044] Fix the diving suit material on the fixture module. According to the experimental requirements, adjust the water flow speed through the wave pump, adjust the water flow temperature through the temperature-controlled water tank, adjust the water quality through the mixing module, and record the test water flow temperature, water flow speed, water quality and test time through the information processing module;

[0045] After flushing the diving suit material for a preset time, remove it from the fixture module, observe the surface of the diving suit material, assess the degree of damage caused by flushing, including wear, tear or other forms of damage, and record the damage area A i , number of cracks n, crack depth h i , crack length L i And the mass loss Δm i , used to evaluate the anti-scouring performance of diving suit materials.

[0046] Furthermore, the specific steps of the aging performance test of the diving suit material include:

[0047] First, record the initial mass, appearance and physical properties of the sample, fix the diving suit material on the fixture module, adjust the water flow speed through the wave pump according to the experimental requirements, adjust the water flow temperature through the temperature-controlled water tank, and adjust the water quality through the mixing module. Record the test water flow temperature, water flow speed, water quality and aging time through the information processing module;

[0048] Take out the diving suit material at regular intervals, observe and record the appearance changes of the diving suit material, remove the diving suit material from the fixture module after the aging test, use the five-point sampling method to intercept rectangular test specimens, conduct tensile strength tests and tensile elongation tests on each test specimen, record the test data of each test specimen, and observe the changes in the fiber surface after aging through electron microscope scanning, and finally analyze whether chemical reactions occur in the diving suit material during the aging process through infrared spectroscopy analysis;

[0049] According to the data recorded by the information processing module, the change rate of the diving suit material after aging is calculated, and finally the aging performance of the diving suit material is obtained by statistical analysis of the test results at each point.

[0050] Compared with the prior art, the present invention has the following advantages:

[0051] (1) In this scheme, the mixing module prepares simulated waters with corresponding salinity and sediment content according to the requirements of the simulated waters, and then transports them to the water storage tank; the temperature of the simulated waters in the water storage tank is adjusted to meet the conditions through the temperature control module, and the water flow rate in the water storage tank is adjusted in conjunction with the wave pump. Then, the heating power supply and flexible temperature sensor in the temperature measurement module are placed in the diving suit material, and then the diving suit material is installed on the fixture module and tested in the simulated waters. The information of the simulated waters and the conditions of the diving suit materials are collected and recorded through the information collection module and the information processing module.

[0052] A simulated water area is set up in the water storage tank, so that the condition of the sample in the test environment can be observed intuitively, which is convenient for adjustment. The temperature of the simulated water area is adjusted by the temperature control module, and the water flow speed of the simulated water area is adjusted by the wave-making pump. The simulated water area is prepared by the mixing module, and the mixing module can adjust the salinity and sediment content of the simulated water area; thereby, simulated water areas with different water qualities or water conditions can be customized, the functions are diverse, and the simulated water area is closer to the actual usage, and the test results are more reliable; the diving suit material to be tested is clamped on the clamp module located in the water storage tank, and the conditions of the simulated water area and the sample are obtained and recorded through the temperature measurement module and the information processing module, so that a variety of samples can be tested, and the test is flexible and has a wide test range.

[0053] (2) The modules of the simulation device of the present invention are easy to build, disassemble and carry, and can be changed according to the actual environmental requirements. It has good adaptability to different environments, good stability, reasonable device circuit structure, and can operate without failure for a long time. Compared with the existing deep-sea environment simulation device, the overall price of the simulation is lower, the cost performance is high, the control operation of the test is also relatively simple, and some components can be remotely controlled by mobile phones, which greatly improves the convenience.

[0054] (3) The present invention can simulate water conditions in different seasons or at different times by adjusting water temperature and water flow rate; it can also simulate different water conditions by adding water sources from different water areas, such as water from the Yangtze River and the Yellow River; and the mixing module is used to adjust the salinity and sediment content of the water added to the water storage tank to simulate the required water quality for testing. It has a wide range of applications and can be flexibly adjusted.

[0055] (4) The present invention can simulate the test conditions of different heating fabrics and diving suit materials in aquatic environments, and can test the corrosion of underwater equipment parts in different water flow environments for a long time by changing the fixture. According to the sample to be tested and different test requirements, corresponding changes can be made to meet the test conditions. Compared with the existing test device, it has a wider test range. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a structural schematic diagram of the present invention;

[0057] Figure 2 It is a structural schematic diagram of the multifunctional clamp in the present invention;

[0058] Figure 3 This is a simplified diagram of the operation process of the information receiving system;

[0059] Figure 4 Schematic diagram of sampling positions of the five-point sampling method of the present invention;

[0060] In the figure, 1. temperature control module, 10. temperature control water tank, 11. water outlet pipe, 12. water inlet pipe; 2. water flow control module, 20. water storage tank, 21. water pump, 221. first sediment filter, 222. second sediment filter, 23. flow meter, 24. wave pump, 25. injection pipe, 26. overflow port; 3. temperature measurement module, 30. heating power supply, 31. flexible temperature sensor, 32. main control board, 33. drive part; 4. information processing module, 40. computer; 5. mixing module, 50. storage tank, 51. salt storage tank, 52. water storage tank, 53. sediment storage tank, 54. tank door, 55. discharge area, 56. mixing tank, 57. stirring blade, 58. stirring rod, 59. discharge port; 6. fixture module, 60. fixture base, 61. detachable waterproof sample bag. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0062] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0063] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0064] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0065] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0066] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0067] Example 1

[0068] like Figure 1 As shown, this embodiment provides a simulation device for testing the performance of diving suit materials in an underwater dynamic environment, including an underwater environment simulation part and a performance testing part. The underwater environment simulation part includes a temperature control module 1, a water flow control module 2 and a mixing module 5; the performance testing part includes a temperature measurement module 3, an information processing module 4 and a fixture module 6;

[0069] The water flow control module 2 includes a water storage tank 20 and a wave pump 24. The wave pump 24 is fixed to one side of the water storage tank 20 and is used to generate water flow and adjust the flow rate of the water flow.

[0070] The temperature control module 1 is connected to the water storage tank 20 and is used to adjust the temperature of the simulated water area in the water storage tank 20;

[0071] The mixing module 5 is connected to the water storage tank 20, and is used to prepare simulated water that meets the required water quality, and transport it to the water storage tank 20, and adjust the salinity or sediment content of the simulated water area in the water storage tank 20;

[0072] The clamp module 6 is disposed in the water tank 20 and is used to clamp the diving suit material;

[0073] The temperature measurement module 3 includes a heating power source 30 and a flexible temperature sensor 31 arranged in the diving suit material. The heating power source 30 is fixed on one side of the diving suit material. The flexible temperature sensor 31 is used to measure the temperature on both sides of the diving suit material. The temperature measurement module 3 is connected to the information processing module 4.

[0074] The information processing module 4 is used to obtain and record the temperature, water flow velocity, water quality and test time of the simulated water area.

[0075] Working principle: the mixing module 5 prepares the simulated water area with corresponding salinity and sediment content according to the requirements of the simulated water area, and then transports it to the water storage tank 20; the temperature of the simulated water area in the water storage tank 20 is adjusted to meet the conditions through the temperature control module 1, and the water flow rate in the water storage tank 20 is adjusted in conjunction with the wave pump 24. Then, the heating power supply 30 and the flexible temperature sensor 31 in the temperature measurement module 3 are placed in the diving suit material, and then the diving suit material is installed on the fixture module 6, and tested in the simulated water area, and the information of the simulated water area and the situation of the diving suit material are collected and recorded through the information collection module 3 and the information processing module.

[0076] A simulated water area is set in the water storage tank 20, so that the condition of the sample in the test environment can be observed intuitively and adjusted easily. The temperature of the simulated water area is adjusted by the temperature control module 1, and the water flow velocity of the simulated water area is adjusted by the wave-making pump 24. The simulated water area is prepared by the mixing module 5, and the mixing module 5 can adjust the salinity and sediment content of the simulated water area; thereby, simulated water areas with different water qualities or water conditions can be customized, the functions are diverse, the simulated water areas are closer to the actual usage conditions, and the test results are more reliable; the diving suit material to be tested is clamped on the clamp module 6 located in the water storage tank 20, and the conditions of the simulated water area and the sample are obtained and recorded by the temperature measurement module 3 and the information processing module 4, so that a variety of samples can be tested, and the test is flexible and has a wide test range.

[0077] In a preferred embodiment, the temperature control module 1 includes a temperature control water tank 10, a water outlet pipe 11 and a water inlet pipe 12, and a water pump 21 is provided in a water storage tank 20;

[0078] The temperature-controlled water tank 10 is used to adjust the water temperature inside the temperature-controlled water tank 10. The temperature-controlled water tank 10 is connected to the water tank 20 through the water outlet pipe 11. The water pump 21 is arranged inside the water tank 20. One end of the water inlet pipe 12 is connected to the temperature-controlled water tank 10, and the other end passes through the water tank 20 and is connected to the water pump 21 for water circulation between the temperature-controlled water tank 10 and the water tank 20.

[0079] The outlet pipe 11 and the inlet pipe 12 are connected to opposite ends of the water tank 20, respectively. A first sediment filter 221 is provided in the water tank 20, and the first sediment filter 221 is coated on the outside of the water pump 21. The sediment is filtered to prevent soil, mineral sand and gravel from entering the water pump 21 and the temperature-controlled water tank 10, causing blockage or damage to the pipeline. An overflow port 26 is provided at a preset height on the side wall of the water tank 20 to control the amount of water in the water tank 20.

[0080] Furthermore, a second sediment filter 222 and a flow meter 23 are provided in the water storage tank 20; the second sediment filter 222 is coated on the outside of the wave pump 24; the flow meter 23 is fixed on the inside of the water storage tank 20 and is used to measure the flow rate of the water flow. The flow meter 23 measures the flow rate of the water flow in the water storage tank to ensure the stability of the flow rate of the water flow in the test environment.

[0081] Among them, a magnetic base is provided at the bottom of the wave-making pump 24, and a corresponding magnetic suction cup is provided on the outer side of the side wall of the water storage tank 20, and the magnetic base is adsorbed on the magnetic base.

[0082] Furthermore, the mixing module 5 includes a mixing tank 56, a stirring structure, and a salt storage tank 51, a silt storage tank 53, and a water storage tank 52 arranged side by side. The salt storage tank 51, the silt storage tank 53, and the water storage tank 52 are respectively connected to the feed port of the mixing tank 56, the stirring structure is arranged in the mixing tank 56, and the discharge port of the mixing tank 56 is connected to the water storage tank 20.

[0083] The modules of the simulation device are easy to build, disassemble and transport, and can be changed according to the actual environmental requirements. They are also adaptable to different environments, have good stability, and have a reasonable device circuit structure, which can operate without failure for a long time. Compared with the existing deep-sea environment simulation devices, the overall price of the simulation is lower, the cost performance is high, the control operation of the test is also relatively simple, and some components can be remotely controlled by mobile phones, which greatly improves the convenience.

[0084] like Figure 2 As shown, the clamp module 6 includes a clamp base 60 and a detachable waterproof sample bag 61. A vacuum suction cup is provided at the lower end of the clamp base 60. The clamp base 60 is adsorbed on the inner wall of the water tank 20 through the vacuum suction cup. The detachable waterproof sample bag 61 is clamped on the clamp base 60 for placing diving suit materials.

[0085] It can simulate the test conditions of different heating fabrics and diving suit materials in water environments. By changing the fixture, it can test the erosion of underwater equipment parts in different water flow environments for a long time. According to the samples to be tested and different test requirements, corresponding changes can be made to meet the test conditions. Compared with existing test devices, it has a wider test range.

[0086] Specifically, Figure 3As shown, the temperature measurement module 3 also includes a main control board 32 and a driving component 33. The main control board 32 is connected to the flexible temperature sensor 31 and the information processing module 4, and is used to transmit the temperature information collected by the flexible temperature sensor 31 to the information processing module 4. The driving component 33 is connected to the heating power supply 30 and the main control board 32.

[0087] This embodiment also provides a method for simulating a device for testing the performance of diving suit materials in an underwater dynamic environment, comprising the following steps:

[0088] The fixture module 6 is placed in the water tank 20, the temperature measuring module 3 is attached to the surface of the diving suit material, and then the diving suit material is placed on the fixture module 6;

[0089] The water quality of the simulated water area is adjusted by the mixing module 5, the temperature control module 1 adjusts the temperature of the simulated water area, and the water flow speed of the simulated water area is adjusted in cooperation with the wave-making pump 24 until the initial conditions are met, and the test begins;

[0090] The temperature information of the diving suit material is collected by the temperature measurement module 3 and transmitted to the information processing module 4 to calculate the thermal stability of the diving suit material and the heat loss rate of the diving suit material; at the same time, the information processing module 4 records the water flow temperature, water flow velocity, water quality and test time of the simulated water area, which is used for testing the anti-scouring performance and aging performance of the diving suit material;

[0091] The salinity or sediment content of the simulated water area is adjusted by the mixing module 5, the temperature control module 1 adjusts the temperature of the simulated water area, and the wave pump 24 adjusts the water flow speed of the simulated water area to adjust the test environment of the diving suit material.

[0092] The water temperature and water flow rate can be adjusted to simulate water conditions in different seasons or times. Water sources from different water areas, such as the Yangtze River and the Yellow River, can also be added to simulate different water areas. The mixing module can be used to adjust the salinity and sediment content of the water added to the water storage tank to simulate the required water quality for testing. It has a wide range of applications and can be flexibly adjusted.

[0093] The mixing module 5 includes a mixing tank 56, a stirring structure, and a salt storage tank 51, a silt storage tank 53, and a water storage tank 52 arranged side by side. The salt storage tank 51, the silt storage tank 53, and the water storage tank 52 are respectively connected to the feed port of the mixing tank 56, the stirring structure is arranged in the mixing tank 56, and the discharge port of the mixing tank 56 is connected to the water storage tank 20. The water quality is adjusted by the mixing module 5 in three ways: salinity adjustment, silt content adjustment, and simultaneous adjustment of salinity and silt content.

[0094] The specific steps of salinity adjustment are: the mass of salt and water of the salinity required for the test conditions is calculated by the information processing module 4, the corresponding mass of salt is added to the salt storage tank 51, the corresponding mass of water is added to the water storage tank 52, and after mixing in the mixing tank 56, it is transported to the water storage tank 20;

[0095] The specific steps of adjusting the sediment content are: calculating the mass of sediment and water required for the test conditions through the information processing module 4, adding the corresponding mass of sediment to the sediment storage tank 53, adding the corresponding mass of water to the water storage tank 52, mixing in the mixing tank 56, and then transporting to the water storage tank 20;

[0096] The specific steps for simultaneously adjusting the salinity and sediment content are as follows: the mass of salt, sediment and water required for the test conditions is calculated by the information processing module 4, the corresponding mass of salt is added to the salt storage tank 51, the corresponding mass of sediment is added to the sediment storage tank 53, the corresponding mass of water is added to the water storage tank 52, and after mixing in the mixing tank 56, it is transported to the water storage tank 20.

[0097] In combination with the above preferred implementation mode, the present embodiment also provides a more specific implementation mode, in which water of different water qualities required in an underwater simulated environment is prepared through an external mixing system, and different concentrations of salt, water, and mud are injected into a mixing tank in the required proportion. After being stirred evenly by a stirring blade, the water flows into a water storage pool through a discharge port, and then the water temperature of the water area is adjusted by a temperature-controlled water tank. The wave-making pump controls the water flow rate of the water area. The water pump is turned on to input the water in the water storage pool into the temperature-controlled water tank. The temperature-controlled water tank adjusts the water to the set temperature and then inputs it back into the water storage pool. This cycle is repeated several times until the water temperature in the water storage pool reaches the required temperature. The water flow rate is changed by changing the rotation speed of the wave-making pump blades. When the environment in the water storage pool reaches the required water temperature and water flow rate, the sample is placed in a sample bag and clamped on a fixture to start testing.

[0098] A measurement method for a multi-feature simulation device suitable for testing the performance of diving suit materials in an underwater dynamic environment. The multi-feature simulation device for performance in an underwater dynamic environment is used to test the performance of diving suit materials. The specific experimental steps are as follows:

[0099] Step 1: Prepare the test environment

[0100] Check the experimental equipment according to Figure 1 The equipment is placed in the correct position and each part of the device is inspected to ensure that the test can proceed normally.

[0101] Step 2: Adjust the fixture according to the test project requirements

[0102] When testing the thermal stability of diving suit materials, the flexible temperature sensor 31 is attached to the surface of the diving suit material, placed together with the detachable waterproof sample bag 61, and clamped on the fixture 60. The power supply 30 is used to generate heat, and the flexible temperature sensor 31 collects temperature information and transmits it to the computer 40 through the main control board 32. The computer 40 outputs the temperature change curve to obtain the thermal stability of the diving suit material.

[0103] Prepare rectangular specimens, such as Figure 4 As shown, a five-point sampling method is used, that is, the midpoint of the diagonal is first determined as the central temperature measurement point, and then four diagonal quarter points (ensuring that the distance from the central sample point is equal) are selected as temperature measurement points. The flexible temperature sensor 31 is attached to the surface of the heating diving suit material at the temperature measurement position, and is placed in a detachable waterproof sample bag 61 and clamped on the fixture 60.

[0104] The power supply is set according to the required working voltage and current, and the power supply 30 is used to generate heat, and the temperature is gradually increased by power, and the current and voltage at each stage are recorded. The flexible temperature sensor 31 collects temperature information in real time and transmits it to the computer 40 through the main control board 32. After the heating temperature stabilizes, it is maintained for a period of time, and the temperature change and stable state are recorded.

[0105] The computer 40 outputs the temperature change curve and experimental data, and records the maximum heating temperature T of each temperature change curve after it becomes stable. max and minimum value T min , calculate the heating temperature fluctuation of each point and the overall heating temperature fluctuation, and use this to judge the heating stability of the diving suit material. Multiple switching tests can be performed to evaluate the stability of the material under different thermal cycles.

[0106] ΔT i =|T max -T min |

[0107] Where: ΔT i -The temperature difference of heating fluctuation at each point (K or °C);

[0108]

[0109] Where: ΔT 总 - Average heat fluctuation temperature difference of the entire fabric; ΔT 1-5 -Thermal fluctuation temperature difference of five test points.

[0110] When testing the heat loss rate of diving suit materials, a five-point sampling method is used, that is, the midpoint of the diagonal is first determined as the central temperature measurement point, and then four diagonal quarter points (ensuring that the distance from the central sample point is equal) are selected as temperature measurement points. The flexible temperature sensor 31 is attached to the surface of the diving suit material at the temperature measurement position, and is placed in a detachable waterproof sample bag 61 and clamped on the fixture 60. The power supply 30 generates heat, and the flexible temperature sensor 31 collects temperature information and transmits it to the computer 40 through the main control board 32. The computer 40 obtains the temperature difference between the heating surface and the non-heating surface of the material.

[0111] According to the sample data, the heat loss rate of the diving suit material at 5 temperature measurement points is obtained using the calculation formula. Comparative analysis can be used to obtain the heat loss of different parts of the diving suit material.

[0112]

[0113] Where: Q i - heat loss rate per point (W, Watt), which indicates the amount of heat passing through the material per unit time; k- thermal conductivity of the material (W / (m·K)), which indicates the ability of the material to conduct heat; A- cross-sectional area of ​​the heat flow channel (m 2 ), which indicates the area through which heat flows; ΔT-temperature difference (K or ℃), which indicates the temperature difference on both sides of the material; D-thickness of the material (m), which indicates the thickness of the material through which heat is lost.

[0114] When testing the anti-scouring performance of the diving suit material, the test sample is clamped on the fixture 60 to ensure that it does not move during the test.

[0115] A wave-making pump 24 is set according to the required test water flow speed, a temperature-controlled water tank 10 is set according to the required test water flow temperature, a mixing module 5 is set according to the required test water quality, and the test water flow temperature, water flow speed, water quality, and test time are recorded by a computer 40.

[0116] After the required test time is maintained, the sample is removed from the fixture 60. After the test is completed, the surface of the sample is observed to assess the degree of damage caused by scouring, including wear, tear or other forms of damage, and the damaged area A is recorded. i , number of cracks n, crack depth h i , crack length L i , mass loss Δm i , for subsequent comparative evaluation.

[0117] Δm i =m 原 -m 测

[0118] Where: Δm i -Mass loss; m原 -Original sample mass; m 测 -Quality of the specimen after testing.

[0119] The damage area A is calculated using the grid method. i , completely cover the worn area on a grid with a square grid size of 1 cm 2 , and then calculate the number of grids covered by the wear area (when calculating the grids in the edge area, the grids with a coverage area exceeding half a grid are regarded as one grid, and the grids with a coverage area less than half a grid are ignored), so that the total wear area can be estimated.

[0120] Take high-resolution photos of the cracks and use image analysis software to measure the length L of each crack i , the average crack length of the specimen is calculated by the formula

[0121]

[0122] Where: -Average crack length; L i - Crack length.

[0123] For larger cracks that can be directly touched, the depth can be directly measured using a vernier caliper or depth gauge. First, flatten the fabric sample and fix it on a horizontal plane. Make sure the surface of the crack is flat. Then place the vernier caliper or depth gauge horizontally on the surface of the crack. Place the end point of the ruler at the bottom of the crack to measure the crack depth h. i , the average crack depth of the sample is calculated by the formula The remaining minor cracks were measured using an ultrasonic thickness gauge.

[0124]

[0125] Where: -Average crack depth; h i - Depth of cracks.

[0126] When testing the aging performance of diving suit materials, first record the initial mass, appearance and physical properties (such as tensile strength σ, tensile elongation δ) of the sample. Then clamp the test sample on the fixture 60 to ensure that it will not move during the test. Set the wave pump 24 according to the required test water flow speed, set the temperature control water tank 10 according to the required test water flow temperature, set the mixing module 5 according to the required test water quality, and record the test water flow temperature, water flow speed, water quality, and aging time through the computer 40.

[0127] During the aging test, the sample is taken out at regular intervals to observe and record its appearance changes (such as color, softness, etc.). After the aging process is completed, the sample is removed from the fixture 60, and a five-point sampling method is used, that is, the midpoint of the diagonal is first determined as the central temperature measurement point, and then four diagonal quarter points (ensuring that the distance from the central sample point is equal) are selected as sampling points to intercept the rectangular test sample, and each test sample is subjected to a tensile strength test and a tensile elongation test, and the test data of each point is recorded. The changes in the fiber surface after aging are observed by scanning with an electron microscope, and finally, infrared spectroscopy is used to analyze whether a chemical reaction occurs in the diving suit material during the aging process.

[0128] Based on the recorded data, the change rate of the fabric after aging is calculated, and finally the aging performance of the diving suit material is obtained by statistical analysis of the test results at each point.

[0129] Δm i =m 原 -m 测

[0130] Where: Δm i - Mass loss per point; m 原 -Original sample mass; m 测 - Quality of the sample after testing.

[0131]

[0132] Where: Δm 总 - Average mass loss of the fabric as a whole; Δm 1-5 - Mass loss at five test points.

[0133]

[0134] Where: Δσ i - rate of change of tensile strength at each point; σ 原 - original sample tensile strength; σ 测 -Tensile strength of specimens after aging test.

[0135]

[0136] Where: Δσ 总 -The average tensile strength change rate of the fabric as a whole; Δσ 1-5 - Change rate of tensile strength at five test points.

[0137]

[0138] Where: Δδ i - Change rate of tensile elongation at each point; δ 原 - tensile elongation of the original sample; δ 测-Tensile elongation of the specimen after aging test.

[0139]

[0140] Where: Δδ 总 —The change rate of the overall average tensile elongation of the fabric; Δδ 1-5 —The rate of change of tensile elongation at five test points.

[0141] Step 3: Change the water salinity

[0142] The computer 40 calculates the masses of salt and water of salinity required for the test conditions, adds the corresponding mass of salt into the salt storage tank 51, adds the corresponding mass of water into the water storage tank 52, opens the tank doors 54 of the salt storage tank 51 and the water storage tank 52, and the water and salt are preliminarily mixed in the discharge area 55 and fall into the mixing tank 56. Turn on the stirring rod 58 to mix them evenly, then open the discharge port 59, and inject the brine into the water storage tank 20 through the injection pipe 25.

[0143] Step 4: Change the water sediment content

[0144] The computer 40 calculates the masses of sediment and water required for the test conditions, adds the corresponding mass of sediment into the sediment storage tank 53, adds the corresponding mass of water into the water storage tank 52, opens the tank doors 54 of the sediment storage tank 53 and the water storage tank 52, and the water and sediment are preliminarily mixed in the discharge area 55 and fall into the mixing tank 56. Turn on the stirring rod 58 to mix them evenly, then open the discharge port 59, and inject the muddy water into the water storage tank 20 through the injection pipe 25.

[0145] Step 5: Simultaneously change water salinity and sediment content

[0146] The computer 40 calculates the masses of salt, silt and water of the required concentrations for the test conditions, and the corresponding mass of salt is added to the salt storage tank 51, the corresponding mass of silt is added to the silt storage tank 53, and the corresponding mass of water is added to the water storage tank 52. The tank doors 54 of the salt storage tank 51, the silt storage tank 53 and the water storage tank 52 are opened, and the salt, water and silt are preliminarily mixed in the discharge area 55 and fall into the mixing tank 56. The stirring rod 58 is turned on to mix them evenly, and then the discharge port 59 is opened, and the salt mud water is injected into the water storage tank 20 through the injection pipe 25.

[0147] Step 6: Adjust the test water temperature and water flow rate

[0148] Operate the temperature-controlled water tank 10 to set the test water temperature, wait for the water tank to circulate and control the temperature, and when the actual temperature on the display screen is the set temperature, the water temperature is the test set temperature. Turn on the wave-making pump 24, adjust its output power, observe the reading of the flow meter 23, and stop adjusting the wave-making pump when the reading is the required test flow rate.

[0149] Step 7: End the test

[0150] Turn off the temperature control system 1, underwater environment simulation system 2, information receiving system 3, information processing system 4, and mixing system 5. Put away all the test equipment one by one and end the test.

[0151] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A simulation device for testing the performance of diving suit materials in an underwater dynamic environment, characterized in that: It comprises an underwater environment simulation part and a performance testing part, wherein the underwater environment simulation part comprises a temperature control module (1), a water flow control module (2) and a material mixing module (5); the performance testing part comprises a temperature measurement module (3), an information processing module (4) and a fixture module (6); The water flow control module (2) comprises a water storage tank (20) and a wave-making pump (24); the wave-making pump (24) is fixed to one side of the water storage tank (20) and is used to generate water flow and adjust the flow rate of the water flow; The temperature control module (1) is connected to the water storage tank (20) and is used to adjust the temperature of the simulated water area in the water storage tank (20); The mixing module (5) is connected to the water storage tank (20) and is used to prepare simulated water that meets the required water quality, transport it to the water storage tank (20), and adjust the salinity or sediment content of the simulated water area in the water storage tank (20); The clamp module (6) is arranged in the water storage tank (20) and is used to clamp diving suit materials; The temperature measurement module (3) comprises a heating power source (30) and a flexible temperature sensor (31) arranged in the diving suit material, the heating power source (30) being fixed on one side of the diving suit material, the flexible temperature sensor (31) being used to measure the temperature of both sides of the diving suit material, and the temperature measurement module (3) being connected to the information processing module (4); The information processing module (4) is used to obtain and record the temperature, water flow velocity, water quality and test time of the simulated water area.

2. A simulation device for testing diving suit material performance in an underwater dynamic environment according to claim 1, characterized in that: The temperature control module (1) comprises a temperature control water tank (10), a water outlet pipe (11) and a water inlet pipe (12); a water pump (21) is provided in the water storage tank (20); The temperature-controlled water tank (10) is used to adjust the water temperature inside the temperature-controlled water tank (10); the temperature-controlled water tank (10) is connected to the water storage tank (20) via a water outlet pipe (11); the water pump (21) is arranged inside the water storage tank (20); one end of the water inlet pipe (12) is connected to the temperature-controlled water tank (10); the other end passes through the water storage tank (20) and is connected to the water pump (21) for water circulation between the temperature-controlled water tank (10) and the water storage tank (20); The water outlet pipe (11) and the water inlet pipe (12) are respectively connected to opposite ends of a water storage tank (20). A first sediment filter (221) is provided in the water storage tank (20), and the first sediment filter (221) is coated on the outside of the water pump (21).

3. The simulation device for testing the performance of diving suit materials in an underwater dynamic environment according to claim 1, characterized in that: A second sediment filter (222) and a flow meter (23) are also provided in the water storage tank (20); the second sediment filter (222) is coated on the outside of the wave pump (24); the flow meter (23) is fixed on the inside of the water storage tank (20) and is used to measure the flow rate of the water flow; a magnetic base is provided at the bottom of the wave pump (24), and a corresponding magnetic suction cup is provided on the outside of the side wall of the water storage tank (20), and the magnetic base is adsorbed on the magnetic base; the clamp module (6) comprises a clamp base (60) and a detachable waterproof sample bag (61), a vacuum suction cup is provided at the lower end of the clamp base (60), and the clamp base (60) is adsorbed on the inner wall of the water storage tank (20) through the vacuum suction cup, and the detachable waterproof sample bag (61) is clamped on the clamp base (60) and is used to place diving suit materials.

4. The simulation device for testing the performance of diving suit materials in an underwater dynamic environment according to claim 1, characterized in that: The mixing module (5) comprises a mixing tank (56), a stirring structure, and a salt storage tank (51), a silt storage tank (53), and a water storage tank (52) arranged side by side. The salt storage tank (51), the silt storage tank (53), and the water storage tank (52) are respectively connected to the feed inlet of the mixing tank (56). The stirring structure is arranged in the mixing tank (56). The discharge port of the mixing tank (56) is connected to the water storage tank (20).

5. A method for testing the performance of diving suit materials in an underwater dynamic environment based on a simulation device according to any one of claims 1 to 4, characterized in that: The following steps are involved: The fixture module (6) is arranged in the water tank (20), the temperature measuring module (3) is attached to the surface of the diving suit material, and the diving suit material is then placed on the fixture module (6); The water quality of the simulated water area is adjusted by the mixing module (5), the temperature control module (1) adjusts the temperature of the simulated water area, and the water flow velocity of the simulated water area is adjusted in cooperation with the wave-making pump (24) until the initial conditions are met, and the test is started; The temperature information of the diving suit material is collected by the temperature measurement module (3) and transmitted to the information processing module (4) to calculate and obtain the thermal stability of the diving suit material and the heat loss rate of the diving suit material; at the same time, the information processing module (4) records the water flow temperature, water flow velocity, water quality and test time of the simulated water area, which is used for testing the anti-scouring performance and aging performance of the diving suit material; The salinity or sediment content of the simulated water area is adjusted by the mixing module (5), the temperature control module (1) adjusts the temperature of the simulated water area, and the wave pump (24) adjusts the water flow speed of the simulated water area, thereby adjusting the test environment of the diving suit material.

6. The method according to claim 5, characterized in that The mixing module (5) comprises a mixing tank (56), a stirring structure, and a salt storage tank (51), a silt storage tank (53), and a water storage tank (52) arranged side by side. The salt storage tank (51), the silt storage tank (53), and the water storage tank (52) are respectively connected to the feed port of the mixing tank (56). The stirring structure is arranged in the mixing tank (56). The discharge port of the mixing tank (56) is connected to the water storage tank (20). The water quality is regulated by the mixing module (5) in three ways: salinity regulation, silt content regulation, and simultaneous regulation of salinity and silt content. The specific steps of salinity adjustment are: calculating the mass of salt and water of salinity required for the test conditions through the information processing module (4), adding the corresponding mass of salt into the salt storage tank (51), adding the corresponding mass of water into the water storage tank (52), mixing in the mixing tank (56), and then transporting to the water storage tank (20); The specific steps of adjusting the sediment content are: calculating the mass of sediment and water required for the sediment content under the test conditions through the information processing module (4), adding the corresponding mass of sediment to the sediment storage tank (53), adding the corresponding mass of water to the water storage tank (52), mixing in the mixing tank (56), and then transporting to the water storage tank (20); The specific steps of simultaneously adjusting the salinity and sediment content are as follows: the mass of salt, sediment and water required for the test conditions is calculated by the information processing module (4), the corresponding mass of salt is added to the salt storage tank (51), the corresponding mass of sediment is added to the sediment storage tank (53), the corresponding mass of water is added to the water storage tank (52), and after mixing in the mixing tank (56), it is transported to the water storage tank (20).

7. The method according to claim 5, characterized in that The specific steps of the thermal stability test of the diving suit material include: The diving suit material is a rectangular sample. The five-point sampling method is used to determine the temperature measurement point. The flexible temperature sensor is attached to the temperature measurement point, and the heating power source is placed inside the diving suit material. The diving suit material is then placed in the fixture module and fixed. The heating power supply is used to generate heat, and the diving suit material is gradually heated up. The current and voltage at each stage are recorded. The flexible temperature sensor collects temperature information in real time and transmits it to the information processing module. After the heating temperature stabilizes, it is maintained for a period of time to record the temperature change and stable state of the diving suit material. The information processing module outputs the temperature change curve and experimental data, and records the maximum heating temperature T after each temperature change curve becomes stable. max and minimum value T min , the temperature difference of heating temperature fluctuation at each point and the average heating temperature fluctuation are calculated to judge the heating stability of diving suit materials; The expression of the temperature difference of each point of the diving suit material is: ΔT i =|T max -T min | Where: ΔT i It indicates the temperature difference of heating fluctuation at each point, in K or °C, i indicates each temperature measurement point; The expression of the average heating fluctuation temperature difference of diving suit materials is: Where: ΔT 总 Indicates the average heating fluctuation temperature difference, in K or °C; ΔT 1-5 Indicates the heating fluctuation temperature difference of the five temperature measuring points.

8. The method according to claim 7, characterized in that The specific steps of the heat loss rate test of the diving suit material include: The information processing module outputs the temperature change curve and experimental data to obtain the temperature difference between the heating surface and the non-heating surface of the diving suit material. The heat loss rate of the diving material at each temperature measurement point is calculated based on the obtained temperature difference, which is used to compare the heat loss of different parts of the diving suit material. The expression of the heat loss rate is: Where: Q i is the heat loss rate at each point, indicating the amount of heat passing through the material per unit time; k is the thermal conductivity of the material, indicating the ability of the material to conduct heat; A is the cross-sectional area of ​​the heat flow channel, indicating the area through which heat flows; ΔT is the temperature difference, indicating the temperature difference on both sides of the material; D is the thickness of the material, indicating the thickness of the material through which the heat is lost.

9. The method according to claim 5, characterized in that The specific steps of the anti-scouring performance test of the diving suit material include: Fix the diving suit material on the fixture module. According to the experimental requirements, adjust the water flow speed through the wave pump, adjust the water flow temperature through the temperature-controlled water tank, adjust the water quality through the mixing module, and record the test water flow temperature, water flow speed, water quality and test time through the information processing module; After flushing the diving suit material for a preset time, remove it from the fixture module, observe the surface of the diving suit material, assess the degree of damage caused by flushing, including wear, tear or other forms of damage, and record the damage area A i , number of cracks n, crack depth h i , crack length L i And the mass loss Δm i , used to evaluate the anti-scouring performance of diving suit materials.

10. The method according to claim 5, characterized in that The specific steps of the aging performance test of the diving suit material include: First, record the initial mass, appearance and physical properties of the sample, fix the diving suit material on the fixture module, adjust the water flow speed through the wave pump according to the experimental requirements, adjust the water flow temperature through the temperature-controlled water tank, and adjust the water quality through the mixing module. Record the test water flow temperature, water flow speed, water quality and aging time through the information processing module; Take out the diving suit material at regular intervals, observe and record the appearance changes of the diving suit material, remove the diving suit material from the fixture module after the aging test, use the five-point sampling method to intercept rectangular test specimens, conduct tensile strength tests and tensile elongation tests on each test specimen, record the test data of each test specimen, and observe the changes in the fiber surface after aging through electron microscope scanning, and finally analyze whether chemical reactions occur in the diving suit material during the aging process through infrared spectroscopy analysis; According to the data recorded by the information processing module, the change rate of the diving suit material after aging is calculated, and finally the aging performance of the diving suit material is obtained by statistical analysis of the test results at each point.

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