Underwater variable pressure additive repair test device in non-steady-state simulation environment of wide temperature range in the ocean

Abstract

Underwater variable pressure additive repair test device under non-steady-state simulated environment of wide temperature range of ocean, the present invention aims to solve the problem of insufficient consideration and coupling of actual extreme marine environmental factors in existing underwater laser additive repair simulation test devices. The main water tank in the underwater variable pressure additive repair test device of the present invention is a concave-shaped cavity structure, the inner concave part of the main water tank forms a first chamber, the internal cavity of the main water tank forms a second chamber, and a water supply and drainage nozzle group is arranged on the side walls of the first chamber and the second chamber; the water pressure simulation adjustment system includes a pressure-resistant sealed cabin, a transition cabin, two high-pressure gas storage tanks and an intake and exhaust nozzle, etc., a three-way movable arm is arranged on the top wall of the pressure-resistant sealed cabin, and the underwater laser gun head is fixed on the three-way movable arm and is located above the workpiece to be repaired. The present invention can realize the controllable adjustment of the influencing factors of the seawater environment, thereby realizing underwater laser additive repair simulation tests under various extreme working conditions in a simulated environment under laboratory conditions.

Description

Technical Field

[0001] The present invention relates to a simulation test device capable of realizing underwater laser additive repair in extreme ocean simulation environments such as tropical, polar and deep sea, and specifically to an underwater variable pressure additive repair test device suitable for use in non-steady-state simulation environments over a wide temperature range of the ocean. Background Art

[0002] As competition for marine resources intensifies, the importance of key underwater components of marine engineering equipment has increased significantly. Underwater key components have been in service for a long time under extreme marine conditions in tropical, polar and deep seas. Under the influence of fluid erosion, alternating loads and corrosive environments, underwater key components are prone to wear, corrosion and other damage. At the same time, the harsh marine environment causes underwater key components to be hit by large marine organisms, sudden changes in marine pressure and other impact damage, which makes it easy for underwater components to fail as a whole due to the coupling of long-term surface damage and impact damage, seriously affecting the service safety, reliability and normal completion of marine engineering facilities. However, due to the particularity of the work tasks of marine engineering equipment in ocean-going and deep-sea missions, frequent docking maintenance will seriously affect the safe and orderly progress of normal operations, which determines that underwater key components need to be repaired underwater in extreme marine environments.

[0003] For underwater online repair, the complexity of the marine environment will directly affect the progress of underwater additive repair. Among them, the temperature, pressure, salinity, and flow field state in the marine environment are complex and changeable, and the non-steady-state oscillation state of the marine environment also continues to affect the progress of underwater online repair. However, it is extremely difficult to implement research and experiments on underwater online repair in the actual marine environment, and the capital cost is high. Therefore, when conducting underwater online repair tests, it is usually necessary to use a simulation test device to complete the laboratory simulation of the actual marine environment, so as to realize the underwater repair and the collection of test data. At present, the existing underwater laser additive repair simulation test device has insufficient consideration and coupling of actual extreme marine environmental factors, and lacks real-time monitoring of the implementation process of underwater laser additive repair. It is difficult to achieve underwater laser additive repair simulation tests that are highly compatible with the actual extreme marine environment, which seriously restricts the further optimization and development of underwater laser additive repair technology.

[0004] Therefore, it is urgent to invent an underwater additive repair simulation test device that can realize real-time feedback optimization, remote control, high integration, high control accuracy, and high compatibility with the actual environment, so as to realize underwater laser additive repair simulation tests and real-time monitoring of the repair process in various extreme ocean simulation environments such as tropical, polar, and deep sea. It has important guiding significance for the process optimization and process control of underwater laser additive repair technology in extreme ocean environments, and can also provide technical support and theoretical guidance for the engineering application of underwater repair technology in various extreme ocean environments. Summary of the invention

[0005] The purpose of the present invention is to solve the problem of insufficient consideration and coupling of actual extreme marine environmental factors in existing underwater laser additive repair simulation test devices, and to achieve precise regulation and multi-factor coupling of influencing factors of extreme marine environments such as tropical, polar and deep sea through high-compliance simulation of extreme marine environments, thereby providing an underwater variable pressure additive repair test device in a non-steady-state simulation environment over a wide temperature range of the ocean, providing equipment support for studying the influence mechanism of typical extreme marine environmental factors on underwater laser additive repair technology.

[0006] The underwater variable pressure additive repair test device under the marine wide temperature range non-steady-state simulation environment of the present invention comprises a water pressure simulation adjustment system, an underwater special laser additive repair system, a solution automatic supply adjustment system and a non-steady-state vibration platform; wherein the solution automatic supply adjustment system comprises a main water tank, two water supply and drainage tanks and a valve, the main water tank is placed in a pressure-resistant sealed cabin, the water supply and drainage tank is divided into an upper water supply and drainage tank and a lower water supply and drainage tank, the main water tank is a concave cavity structure, the inner concave part of the main water tank forms a first chamber, the inner cavity of the main water tank forms a second chamber, a No. 1 water supply and drainage nozzle group is arranged on the side wall of the first chamber, and the nozzles in the No. 1 water supply and drainage nozzle group are respectively connected to the upper water supply and drainage tank through pipelines; a No. 2 water supply and drainage nozzle group is arranged on the side wall of the second chamber, and the nozzles in the No. 2 water supply and drainage nozzle group are respectively connected to the lower water supply and drainage tank through pipelines, and valves are arranged on the pipelines connecting each nozzle to the water supply and drainage tank;

[0007] The water pressure simulation regulating system comprises a pressure-resistant sealed cabin, a transition cabin, two high-pressure gas storage tanks, two pressure regulating controllers, an air intake nozzle and an exhaust nozzle. A servo electric clamp is arranged on the top wall of the pressure-resistant sealed cabin. The transition cabin is horizontally placed on the side wall of the pressure-resistant sealed cabin. The second high-pressure gas storage tank is connected to the transition cabin through an air pipe, and a second pressure regulating controller is arranged on the air pipe. The air intake nozzle and the exhaust nozzle are arranged in the pressure-resistant sealed cabin. The air intake nozzle is connected to the first high-pressure gas storage tank through a connecting pipe, and a first pressure regulating controller and an airflow velocity controller are arranged on the connecting pipe.

[0008] The underwater dedicated laser additive repair system includes a laser, an underwater laser gun head and a mobile arm. The laser is connected to the underwater laser gun head through a pressure-resistant optical fiber. The mobile arm is arranged on the top wall of the pressure-resistant sealed cabin. The underwater laser gun head is fixed on the mobile arm and is located above the workpiece to be repaired.

[0009] The pressure-resistant sealed cabin is arranged on a multi-directional non-steady-state vibration platform, and the workpiece to be repaired is clamped by a clamping workbench.

[0010] The present invention is applicable to the underwater variable pressure additive repair test device under the non-steady-state simulation environment of the wide temperature range of the ocean. It mainly includes a water pressure simulation adjustment system, an underwater special laser additive repair system, a solution automatic supply adjustment system, and a non-steady-state oscillation simulation system; the multi-directional non-steady-state vibration platform is fixed under the pressure-resistant sealed cabin by a rigid connection. The laser collimator and the high-speed camera are both placed in the first chamber of the pressure-resistant sealed cabin, which can realize the precise positioning of the workpiece to be repaired and the detailed observation of the repair process. One end of the two real-time detection probes of the automatic solution supply adjustment system is placed in the main water tank, and the other end is connected to the water environment detection centralized control cabinet. The water level and salinity change simulation and the flow field design near the molten pool are realized by controlling the automatic drainage valve and the drainage nozzle. The real-time temperature measurement probe and the temperature control module can realize the synchronous and co-location adjustment of the water temperature in a wide temperature range. The infrared thermometer and the underwater special pressure-resistant laser gun head are clamped on the mobile arm at the same time, and the clamping angle is adjustable, which can realize the monitoring and feedback of the temperature field of the molten pool, thereby realizing the simulation of a wide temperature range multi-extreme water environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the underwater variable pressure additive repair test device applicable to the non-steady-state simulated environment of a wide temperature range in the ocean according to the present invention;

[0012] Figure 2 This is a schematic diagram of the structure of the mobile arm and the laser gun head;

[0013] Figure 3 It is a schematic diagram of the surface structure of the underwater clamping simulation workbench;

[0014] Figure 4 It is a friction coefficient curve of the underwater laser repair coating prepared by the underwater variable pressure additive repair test device in the embodiment;

[0015] Figure 5 This is a friction morphology diagram of the underwater laser repair coating prepared using the underwater variable pressure additive repair test device in the example. DETAILED DESCRIPTION

[0016] Specific implementation method 1: In this implementation method, the underwater variable pressure additive repair test device under the marine wide temperature range non-steady-state simulation environment includes a water pressure simulation adjustment system 20, an underwater dedicated laser additive repair system 30, a solution automatic supply adjustment system 40 and a non-steady-state vibration platform 11; wherein the solution automatic supply adjustment system 40 includes a main water tank 41, two water supply and drainage tanks and a valve 43, the main water tank 41 is placed in the pressure-resistant sealed cabin 21, and the water supply and drainage tank is divided into an upper water supply and drainage tank 42-1 and a lower water supply and drainage tank 42-2, the main water tank 41 is a concave cavity structure, and the main water tank 41 is a concave cavity structure. The concave part of the water tank 41 forms a first chamber, and the internal cavity of the main water tank 41 forms a second chamber. A first water supply and drainage nozzle group 43-5 is arranged on the side wall of the first chamber, and the nozzles in the first water supply and drainage nozzle group 43-5 are respectively connected to the upper water supply and drainage tank 42-1 through pipelines; a second water supply and drainage nozzle group 43-6 is arranged on the side wall of the second chamber, and the nozzles in the second water supply and drainage nozzle group 43-6 are respectively connected to the lower water supply and drainage tank 42-2 through pipelines, and valves 43 are arranged on the pipelines connecting each nozzle and the water supply and drainage tank;

[0017] The water pressure simulation regulating system 20 comprises a pressure-resistant sealed cabin 21, a transition cabin 22, two high-pressure gas storage tanks, two pressure regulating controllers, an air intake nozzle 28 and an exhaust nozzle 29. A servo electric clamp 80 is arranged on the top wall of the pressure-resistant sealed cabin 21. The transition cabin 22 is horizontally placed on the side wall of the pressure-resistant sealed cabin 21. The second high-pressure gas storage tank 24 is connected to the transition cabin 22 through an air pipe, and a second pressure regulating controller 26 is arranged on the air pipe. The air intake nozzle 28 and the exhaust nozzle 29 are arranged in the pressure-resistant sealed cabin 21. The air intake nozzle 28 is connected to the first high-pressure gas storage tank 23 through a connecting pipe, and a first pressure regulating controller 25 and an air flow rate controller 27 are arranged on the connecting pipe.

[0018] The underwater dedicated laser additive repair system 30 includes a laser 31, an underwater laser gun head 33 and a mobile arm 50. The laser 31 is connected to the underwater laser gun head 33 through a pressure-resistant optical fiber. The mobile arm 50 is arranged on the top wall of the pressure-resistant sealed cabin 21. The underwater laser gun head 33 is fixed on the mobile arm 50 and is located above the workpiece 60 to be repaired.

[0019] The pressure-resistant sealed cabin 21 is disposed on the multi-directional non-steady-state vibration platform 11 , and clamps the workpiece 60 to be repaired through the clamping workbench 12 .

[0020] This embodiment realizes the flow field design near the molten pool and the control of water flow velocity and boundary conditions through the water supply nozzle.

[0021] In this embodiment, the workpiece 60 to be repaired can enter the pressure-resistant sealed cabin 21 through the transition cabin 22, ensuring that the pressure difference between the transition cabin and the pressure-resistant sealed cabin is as small as possible. The servo electric clamp 80 can be controlled to move and fix the workpiece 60 to be repaired; the servo electric clamp 80 is connected to a servo motor 80-3, and the servo motor 80-3 controls the guide assembly 80-1 to move on the slide rail 80-4.

[0022] Specific embodiment 2: This embodiment is different from the specific embodiment 1 in that a water quality salinity detection probe 44 and a real-time water level detection probe 45 are further provided in the first chamber of the main water tank 41 .

[0023] Specific implementation method three: This implementation method is different from specific implementation methods one or two in that a real-time temperature measurement probe 46 and a temperature control module 47 are further provided in the second chamber of the main water tank 41 .

[0024] Specific implementation method 4: This implementation method is different from any one of specific implementation methods 1 to 3 in that the upper water supply and drainage tank 42 - 1 is connected to the water environment detection centralized control cabinet 49 .

[0025] Specific embodiment 5: This embodiment is different from specific embodiments 1 to 4 in that a high-speed camera 71 is disposed in the first chamber of the main water tank 41 .

[0026] In this embodiment, the high-speed camera 71 can move up and down along the slide rail.

[0027] Specific embodiment 6: This embodiment is different from specific embodiments 1 to 5 in that a slide rail is provided on the top wall of the pressure-resistant sealed cabin 21, and the servo electric clamp 80 is slidably connected to the slide rail.

[0028] Specific implementation method seven: This implementation method is different from specific implementation methods one to six in that an infrared thermometer 34 is also provided on the moving arm 50 .

[0029] In this embodiment, the infrared thermometer 34 is connected to the mobile arm via an articulated link 54 .

[0030] Specific embodiment eight: This embodiment is different from any one of specific embodiments one to seven in that a temperature control regulator 42-3 is provided in the upper drainage tank 42-1 and the lower drainage tank 42-2, respectively.

[0031] In this embodiment, the temperature of the input water flow is controlled by the temperature control regulator during the water flow simulation experiment. Antifreeze can be added to the lower water supply and drainage tank 42-2 to achieve a water temperature below 0°C.

[0032] Specific embodiment 9: This embodiment is different from the specific embodiments 1 to 8 in that the moving arm 50 includes an X-direction guide assembly 51, a Y-direction guide assembly 52 and a Z-direction assembly 53. The X-direction guide assembly 51 is composed of an X-direction slide rail 51-1, an X-direction moving block 51-3, an X-direction motor 51-2 and a first screw rod. The X-direction slide rail 51-1 is vertically arranged, and the X-direction moving block 51-3 is sleeved on the first screw rod. The first screw rod is driven by the X-direction motor 51-2 to drive the X-direction moving block 51-3 to move on the X-direction slide rail 51- 1, the Y-direction guide assembly 52 is horizontally arranged and fixed on the X-direction moving block 51-3; the Y-direction guide assembly 52 is composed of a Y-direction slide rail 52-1, a Y-direction moving block 52-3, a Y-direction motor 52-2 and a second screw rod, the Y-direction moving block 52-3 is sleeved on the second screw rod, and the second screw rod is driven by the Y-direction motor 52-2 to drive the Y-direction moving block 52-3 to move on the Y-direction slide rail 52-1, the Z-direction assembly 53 is installed on the Y-direction moving block 52-3, and the underwater laser gun head 33 is installed on the Z-direction assembly 53.

[0033] In this embodiment, a turntable is arranged at the bottom of the Z-direction assembly, and the underwater laser gun head is mounted on the turntable, so as to facilitate the adjustment of the position of the underwater laser gun head.

[0034] Specific embodiment ten: This embodiment is different from specific embodiments one to nine in that the vibration frequency of the multi-directional non-steady-state vibration platform 11 is controlled to be 1 to 100 Hz.

[0035] In this embodiment, the multi-directional non-steady-state vibration platform 11 can be controlled to realize vibration in three single directions, namely horizontal, longitudinal and vertical directions, and horizontal and longitudinal bidirectional coupling. The vibration frequency of the multi-directional non-steady-state vibration platform 11 is 1-100 Hz.

[0036] Specific embodiment eleven: The difference between this embodiment and specific embodiments one to ten is that the clamping workbench 12 includes a fixed plate 13, a movable plate 14, an electric push rod 15 and a base 16, and the fixed plate 13, the movable plate 14, the electric push rod 15 and the base 16 are arranged on the base 16, the electric push rod 15 is connected to the movable plate 14, and the workpiece 60 to be repaired is clamped between the fixed plate 13 and the movable plate 14.

[0037] Embodiment: The underwater variable pressure additive repair test device under the marine wide temperature range non-steady-state simulation environment of this embodiment includes a water pressure simulation adjustment system 20, an underwater dedicated laser additive repair system 30, a solution automatic supply adjustment system 40 and a non-steady-state vibration platform 11; wherein the solution automatic supply adjustment system 40 includes a main water tank 41, two water supply and drainage tanks, a valve 43 and a temperature control module 47, the main water tank 41 is placed in the pressure-resistant sealed cabin 21, the water supply and drainage tank is divided into an upper water supply and drainage tank 42-1 and a lower water supply and drainage tank 42-2, the main water tank 41 is a concave cavity structure, The concave part of the main water tank 41 forms a first chamber, and the internal cavity of the main water tank 41 forms a second chamber. A first water replenishment-drainage nozzle group 43-5 is arranged on the side wall of the first chamber, and the nozzles in the first water replenishment-drainage nozzle group 43-5 are respectively connected to the upper water replenishment and drainage tank 42-1 through pipelines; a second water replenishment-drainage nozzle group 43-6 is arranged on the side wall of the second chamber, and the nozzles in the second water replenishment-drainage nozzle group 43-6 are respectively connected to the lower water replenishment and drainage tank 42-2 through pipelines, and valves 43 are arranged on the pipelines connecting each nozzle and the water replenishment and drainage tank 42;

[0038] The water pressure simulation regulating system 20 comprises a pressure-resistant sealed cabin 21, a transition cabin 22, two high-pressure gas storage tanks, two pressure regulating controllers, an air intake nozzle 28 and an exhaust nozzle 29. A servo electric clamp 80 is arranged on the top wall of the pressure-resistant sealed cabin 21. The transition cabin 22 is horizontally placed on the side wall of the pressure-resistant sealed cabin 21. The hatch of the transition cabin 22 is connected with the pressure-resistant sealed cabin 21. The second high-pressure gas storage tank 24 is connected with the transition cabin 22 through an air pipe, and a second pressure regulating controller 26 is arranged on the air pipe. The air intake nozzle 28 and the exhaust nozzle 29 are arranged in the pressure-resistant sealed cabin 21. The air intake nozzle 28 is connected with the first high-pressure gas storage tank 23 through a connecting pipe, and a first pressure regulating controller 25 and an air flow rate controller 27 are arranged on the connecting pipe.

[0039] The underwater dedicated laser additive repair system 30 includes a laser 31, an underwater laser gun head 33 and a moving arm 50. The laser 31 is connected to the underwater laser gun head 33 through a pressure-resistant optical fiber. The moving arm 50 is arranged on the top wall of the pressure-resistant sealed cabin 21. The underwater laser gun head 33 is fixed on the moving arm 50 and is located above the workpiece 60 to be repaired. The moving arm 50 includes an X-direction guide component 51, a Y-direction guide component 52 and a Z-direction component 53. The X-direction guide component 51 is composed of an X-direction slide rail 51-1, an X-direction moving block 51-3, an X-direction motor 51-2 and a first screw rod. The X-direction slide rail 51-1 is vertically arranged, and the X-direction moving block 51-3 is set The first screw rod is driven by the X-direction motor 51-2 to drive the X-direction moving block 51-3 to move on the X-direction slide rail 51-1. The Y-direction guide assembly 52 is horizontally arranged and fixed on the X-direction moving block 51-3. The Y-direction guide assembly 52 is composed of the Y-direction slide rail 52-1, the Y-direction moving block 52-3, the Y-direction motor 52-2 and the second screw rod. The Y-direction moving block 52-3 is sleeved on the second screw rod. The second screw rod is driven by the Y-direction motor 52-2 to drive the Y-direction moving block 52-3 to move on the Y-direction slide rail 52-1. The Z-direction assembly 53 is installed on the Y-direction moving block 52-3, and the underwater laser gun head 33 is installed on the Z-direction assembly 53.

[0040] The pressure-resistant sealed cabin 21 is disposed on the multi-directional non-steady-state vibration platform 11 , and clamps the workpiece 60 to be repaired through the clamping workbench 12 .

[0041] In this embodiment, the laser 31, the infrared thermometer 34, the mobile arm 50, the high-speed camera 71, the laser collimator 72 and the servo electric gripper 80 are connected to the control system and controlled by the computer 90. A small propeller is provided in the water supply nozzle, and the servo motor drives the small propeller to realize the flow field control near the molten pool and the control of the water flow speed and boundary conditions.

[0042] The process of using the underwater variable pressure additive repair test device in the marine wide temperature range non-steady state simulation environment of this embodiment to conduct an underwater additive repair test is as follows:

[0043] Step 1: Place the workpiece 60 to be repaired into the transition chamber 22, use the servo electric clamp 80 to place the workpiece 60 to be repaired on the clamping table 12, and use the laser collimator 72 to determine that the workpiece is placed straight, adjust the fixed position and height of the workpiece 60 to be repaired, and use the electric push rod 15 to move the sliding plate 14 to fix the workpiece 60 to be repaired;

[0044] Step 2: The solution in the upper replenishment and drainage tank 42-1 is collected into the first chamber through the first replenishment and drainage nozzle group 43-5, and the automatic flow rate regulating valve 43 is opened. After the first chamber reaches the predetermined water level according to the real-time water level detection probe, the automatic flow rate outlet valve 43 is opened, and the flow rates of the two valves are set to the predetermined flow rates;

[0045] Step 3: inject the solution in the lower water supply and drainage tank 42-2 into the second chamber through the second water supply and drainage nozzle group 43-6, turn on the real-time temperature measuring probe 46 and the temperature control module 47, and adjust the water temperature to the predetermined water temperature; turn on the high-pressure gas storage tank 23 and the air inlet nozzle 28, adjust the pressure regulating controller 25 and the air flow rate controller 27, and obtain a high-pressure air flow with a fixed pressure and flow rate;

[0046] Step 4: Turn on the multi-directional non-steady-state vibration platform 11 and set the vibration direction and vibration frequency;

[0047] Step 5: Control the mobile arm 50 through the control system, use the high-speed camera 71 to observe the underwater workpiece 60 to be repaired, and complete the path planning of additive repair based on the observation information;

[0048] Step 6: Turn on the laser 31 and the infrared thermometer 34, follow the planned repair path, use the mobile arm 50 as a motion mechanism, and complete the underwater laser additive repair test according to the determined process parameters;

[0049] Step 7: Turn off the laser 31, the movable arm 50 and the infrared thermometer 34; turn off the high-pressure gas storage tank 23, the pressure regulating controller 25, the air flow rate controller 27, and open the air outlet nozzle 29; turn off the automatic flow rate regulating water supply valve 43-1, the water supply nozzle 43-9, the real-time temperature measurement probe 46, and the temperature control module 47, wait until the pressure of the pressure-resistant sealed cabin 21 returns to normal, drain the solution in the main water tank 41, and take out the workpiece 60 to be repaired.

[0050] In this embodiment, the workpiece to be repaired is an EH40 plate with a size of 100×100×10 mm. The vibration mode of the multi-directional non-steady-state vibration platform is a 20 Hz horizontal vibration to simulate the vibration of the ocean level. The laser power is 2500 W, the laser scanning speed is 5 mm / s, the spot diameter is 1 mm, and the water environment is a simulated seawater solution (including NaCl, KCl, MgCl2, etc.), simulating the repair environment of 20 m underwater (the density of seawater is about 1.025×10 3 kg / m 3 , the pressure at 20m underwater is P = ρgh = 1.025 × 10 3 kg / m 3 ×9.8×20Pa=0.2009MPa, about 2 atmospheres), flow rate 0.5m / s, water temperature controlled at 4℃. Figure 4 and Figure 5 This is a test image of the underwater laser repair coating obtained using an underwater variable pressure additive repair test device in a non-steady-state simulated environment with a wide ocean temperature range.

[0051] This embodiment can accurately, quickly and effectively simulate the wide temperature range non-steady-state underwater variable pressure extreme water environment in the repair process in tropical, polar, deep sea and other marine environments, so that the influencing factors of the water environment in the process of laser underwater online repair can be controlled and adjusted, and the underwater online repair process can be further optimized. In order to investigate the influence of temperature, pressure, salinity, flow field state, and non-steady-state oscillation on the organizational evolution law, the formation mechanism of defects such as pores and cracks, and the generation and evolution mechanism of residual stress in the laser repair process under simulated extreme marine environments, provide equipment support for the verification of underwater laser additive repair mechanism, and provide experimental conditions for laser additive repair of underwater key components.

[0052] The present invention provides an underwater variable pressure additive repair test device suitable for a non-steady-state simulated environment in a wide temperature range of the ocean. The device can perform synchronous water environment simulation on the area to be repaired in extreme marine environments such as tropical, polar and deep sea, and realize controllable adjustment of the influencing factors of the water environment, thereby realizing underwater laser additive repair simulation tests under various extreme working conditions in the actual marine environment under laboratory conditions, making the test results more realistic and reliable, and ultimately providing theoretical guidance and technical support for realizing online high-quality repair of marine engineering equipment parts in extreme marine environments such as tropical, polar and deep sea.

Claims

1. Underwater variable pressure additive repair test device in a wide temperature range non-steady state simulated environment of the ocean, characterized by The underwater variable pressure additive repair test device comprises a water pressure simulation adjustment system (20), an underwater dedicated laser additive repair system (30), a solution automatic supply adjustment system (40) and a non-steady-state vibration platform (11); wherein the solution automatic supply adjustment system (40) comprises a main water tank (41), two water supply and drainage tanks and a valve (43); the main water tank (41) is placed in a pressure-resistant sealed cabin (21); the water supply and drainage tanks are divided into an upper water supply and drainage tank (42-1) and a lower water supply and drainage tank (42-2); the main water tank (41) is a concave-shaped cavity structure; the inner concave portion of the main water tank (41) is A first chamber is formed, and the internal cavity of the main water tank (41) forms a second chamber. A first water supply and drainage nozzle group (43-5) is arranged on the side wall of the first chamber, and the nozzles in the first water supply and drainage nozzle group (43-5) are respectively connected to the upper water supply and drainage tank (42-1) through pipelines; a second water supply and drainage nozzle group (43-6) is arranged on the side wall of the second chamber, and the nozzles in the second water supply and drainage nozzle group (43-6) are respectively connected to the lower water supply and drainage tank (42-2) through pipelines, and valves (43) are arranged on the pipelines connecting each nozzle and the water supply and drainage tank; The water pressure simulation regulating system (20) comprises a pressure-resistant sealed cabin (21), a transition cabin (22), two high-pressure gas storage tanks, two pressure regulating controllers, an air intake nozzle (28) and an air exhaust nozzle (29); a servo electric clamp (80) is arranged on the top wall of the pressure-resistant sealed cabin (21); the transition cabin (22) is horizontally placed on the side wall of the pressure-resistant sealed cabin (21); a second high-pressure gas storage tank (24) is connected to the transition cabin (22) via an air pipe; a second pressure regulating controller (26) is arranged on the air pipe; an air intake nozzle (28) and an air exhaust nozzle (29) are arranged in the pressure-resistant sealed cabin (21); the air intake nozzle (28) is connected to the first high-pressure gas storage tank (23) via a connecting pipe; a first pressure regulating controller (25) and an air flow rate controller (27) are arranged on the connecting pipe; The underwater dedicated laser additive repair system (30) comprises a laser (31), an underwater laser gun head (33) and a movable arm (50), wherein the laser (31) is connected to the underwater laser gun head (33) via a pressure-resistant optical fiber, the movable arm (50) is arranged on the top wall of a pressure-resistant sealed cabin (21), and the underwater laser gun head (33) is fixed on the movable arm (50) and is located above a workpiece (60) to be repaired; The pressure-resistant sealed cabin (21) is arranged on a multi-directional non-steady-state vibration platform (11) and clamps a workpiece (60) to be repaired via a clamping workbench (12).

2. The underwater variable pressure additive repair test device under the marine wide temperature range non-steady state simulation environment according to claim 1 is characterized in that A water quality salinity detection probe (44) and a real-time water level detection probe (45) are also provided in the first chamber of the main water tank (41).

3. The underwater variable pressure additive repair test device under the marine wide temperature range non-steady state simulation environment according to claim 1 is characterized in that A real-time temperature measuring probe (46) and a temperature control module (47) are also provided in the second chamber of the main water tank (41).

4. The underwater variable pressure additive repair test device under the marine wide temperature range non-steady state simulation environment according to claim 1 is characterized in that The upper replenishment and drainage tank (42-1) is connected to the water environment detection centralized control cabinet (49).

5. The underwater variable pressure additive repair test device under the marine wide temperature range non-steady state simulation environment according to claim 1 is characterized in that A high-speed camera (71) is arranged in the first chamber of the main water tank (41).

6. The underwater variable pressure additive repair test device under the marine wide temperature range non-steady state simulation environment according to claim 1 is characterized in that A slide rail is provided on the top wall of the pressure-resistant sealed cabin (21), and the servo electric clamp (80) is slidably connected to the slide rail.

7. The underwater variable pressure additive repair test device under the marine wide temperature range non-steady state simulation environment according to claim 1 is characterized in that An infrared thermometer (34) is also provided on the movable arm (50).

8. The underwater variable pressure additive repair test device under the marine wide temperature range non-steady state simulation environment according to claim 1 is characterized in that The upper drainage tank (42-1) and the lower drainage tank (42-2) are respectively provided with temperature control regulators (42-3).

9. The underwater variable pressure additive repair test device under the marine wide temperature range non-steady state simulation environment according to claim 1 is characterized in that The movable arm (50) comprises an X-direction guide assembly (51), a Y-direction guide assembly (52) and a Z-direction assembly (53); the X-direction guide assembly (51) comprises an X-direction slide rail (51-1), an X-direction moving block (51-3), an X-direction motor (51-2) and a first screw rod; the X-direction slide rail (51-1) is vertically arranged; the X-direction moving block (51-3) is sleeved on the first screw rod; the first screw rod is driven by the X-direction motor (51-2) to drive the X-direction moving block (51-3) to move on the X-direction slide rail (51-1); the Y-direction guide assembly (52) is horizontally arranged on the X-direction slide rail (51-1); The Y-direction guide assembly (52) is horizontally arranged and fixed on the X-direction moving block (51-3); the Y-direction guide assembly (52) is composed of a Y-direction slide rail (52-1), a Y-direction moving block (52-3), a Y-direction motor (52-2) and a second screw rod; the Y-direction moving block (52-3) is sleeved on the second screw rod; the second screw rod is driven by the Y-direction motor (52-2) to drive the Y-direction moving block (52-3) to move on the Y-direction slide rail (52-1); the Z-direction assembly (53) is installed on the Y-direction moving block (52-3); and the underwater laser gun head (33) is installed on the Z-direction assembly (53).

10. The underwater variable pressure additive repair test device in the marine wide temperature range non-steady state simulation environment according to claim 1 is characterized in that The clamping workbench (12) comprises a fixed plate (13), a movable plate (14), an electric push rod (15) and a base (16). The fixed plate (13), the movable plate (14), the electric push rod (15) and the base (16) are arranged on the base (16). The electric push rod (15) is connected to the movable plate (14). The workpiece (60) to be repaired is clamped between the fixed plate (13) and the movable plate (14).

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