Chloride ion erosion test device

Abstract

The utility model relates to a chloride ion erosion test device. A fixed component base, a lifting assembly and a wave making assembly are mounted on a test box; the water tank is communicated with the test box through a pipeline; a water pump is mounted on the pipeline; the fixed component base is used for placing an experimental component; a pressing plate is installed at the output end of the lifting assembly, and the lifting assembly lifts to drive the pressing plate to press the experimental component or separate the experimental component. The wave making assembly is used for generating waves in the test box; the working condition of ocean engineering under atmospheric ocean can be well simulated by utilizing dynamic load, temperature and humidity and simulated seawater splashing coupling, theoretical support is provided for engineering application of a novel combined structure offshore wind power tower, and the engineering requirements of high strength, high toughness and high durability of offshore wind power supporting structures in China are met.

Description

Technical Field

[0001] The utility model relates to the technical field of test equipment, in particular to a chloride ion corrosion test device. Background Art

[0002] The ocean occupies more than 2 / 3 of the earth's surface. Human development and utilization of the ocean is gradually deepening. However, the marine environment is a highly corrosive disaster environment. Various materials are very susceptible to corrosion and degradation in the marine environment. Offshore wind turbine towers are subjected to chloride ion corrosion and dynamic load coupling for a long time in the marine service environment, resulting in material performance degradation and structural corrosion fatigue damage or even failure, which seriously affects their service safety.

[0003] At present, marine corrosion tests of materials are mainly carried out at marine corrosion test stations established near the coastline. However, real sea sampling requires a lot of manpower, material and financial resources, and has the disadvantages of long test cycle, large discreteness of test data, and inconvenience for real-time observation and testing.

[0004] For example, a Chinese patent published on August 6, 2014 with patent publication number CN203758887U discloses a marine corrosion simulation test device. The actual temperature of the test seawater can be measured by using a temperature sensor, compared with the set temperature, and judged by a temperature controller to finally determine whether the heater needs to be heated, so as to control the test seawater temperature to a level close to the actual seawater temperature, more realistically simulate the actual seawater temperature, more realistically simulate the ocean environment temperature, and facilitate the accuracy of the test data.

[0005] However, the factors that cause metal corrosion are complex and changeable, and the severity of corrosion in each corrosive environment area is also different. Even for the same metal structure, the corrosion situation in different zones is also different. 1. The ups and downs of the waves will cause the metal structure to form wave impact areas, full immersion areas and splash areas, etc. The rise and fall of the metal structure cannot simulate the actual working conditions well; 2. The metal structure is usually used as a support to bear the load. The existing test shows that the structure is not loaded, which is inconsistent with the actual working conditions. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a chloride ion corrosion test device to solve the above problems.

[0007] The utility model provides the following technical solutions:

[0008] A chloride ion corrosion test device, comprising:

[0009] A test box, on which a fixed component base, a lifting component and a wave-making component are installed;

[0010] A water tank, the water tank is connected to the test box through a pipeline, a water pump is installed on the pipeline, and the water pump drives the salt water to flow bidirectionally between the water tank and the test box through the pipeline;

[0011] The fixed component base is used to place the experimental component;

[0012] A pressing plate is installed at the output end of the lifting assembly, and the lifting of the lifting assembly drives the pressing plate to press the experimental component or separate it;

[0013] The wave-making assembly is used to generate waves in the test box.

[0014] Preferably, a height sensor for monitoring the height of the pressing plate is installed on the pressing plate.

[0015] Preferably, the height sensor adopts a magnetic infrared sensing device, which is magnetically adsorbed on the pressure plate.

[0016] Preferably, a chloride ion solubility monitor is installed in the test box.

[0017] Preferably, a temperature monitor and a heating component are installed in the test box.

[0018] Preferably, the output end of the lifting assembly or the pressure plate is provided with a pressure sensor, and the pressure sensor is used to monitor the load size of the experimental component in real time.

[0019] Preferably, a water tank inlet is provided at the top of the water tank.

[0020] Preferably, the wave-making assembly includes a lateral force assembly and a push plate installed at an output end of the lateral force assembly, and the lateral force assembly drives the push plate to reciprocate horizontally.

[0021] Preferably, the fixing member base is detachably mounted in the test box.

[0022] Preferably, a plurality of horizontally arranged through grooves are vertically opened on the base of the fixing component, and the through grooves are adapted to the contours of the corresponding experimental components.

[0023] Preferably, it also includes a computer, which is electrically connected to the pressure sensor, the lateral force component, the height sensor, the water pump, the temperature monitor, the chloride ion solubility monitor and the heating component.

[0024] The utility model has the following beneficial technical effects:

[0025] The wave-making component drives the salt water in the test chamber to fluctuate and simulate the sea waves, so as to hit the experimental components to form the sea wave impact zone, full immersion zone and splash zone, which can well simulate the actual working conditions.

[0026] The lifting assembly and the pressure plate are set to apply pressure / dynamic load to the experimental component to simulate the load borne by the experimental component and further fit the actual working conditions.

[0027] The height of the salt water in the test chamber can be controlled by a water pump to achieve dry-wet cycle of the test components and accelerate the corrosion of the test components.

[0028] The temperature monitor and heating component are used to simulate the change of seasons: spring, summer, autumn and winter.

[0029] The use of dynamic loads, temperature and humidity, and simulated seawater splash coupling can well simulate the working conditions of marine engineering in the atmosphere and ocean, providing theoretical support for the engineering application of new composite structure offshore wind power towers, which meets the engineering requirements of high strength, high toughness and high durability of my country's offshore wind power support structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the utility model;

[0031] Figure 2 It is a front sectional view of the utility model;

[0032] Figure 3 This is a schematic diagram of placing experimental components in the test box of the utility model;

[0033] Figure 4 It is a schematic diagram of the internal structure of the test box of the utility model.

[0034] The reference numerals in the figure are:

[0035] 1. Test chamber; 5. Lifting assembly; 6. Press plate; 7. Pressure sensor; 8. Height sensor; 10. Lateral force assembly; 11. Push plate; 12. Experimental component; 14. Pipeline; 15. Intelligent water pump console; 16. Water tank inlet; 17. Water pump; 18. Bottom plate; 19. Water tank; 21. Temperature monitor; 22. Chloride ion solubility monitor; 23. Heating assembly; 24. Computer; 25. Fixed component base. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Example:

[0038] like Figure 1-Figure 4As shown, the test box 1 and the water tank 19 are fixed on the top wall of the bottom plate 18. The test box 1 and the water tank 19 are interconnected through a pipe 14. A water pump 17 is installed on the pipe 14. The water pump 17 can be a metering pump. The water pump 17 is controlled by the intelligent water pump console 15. The water pump 17 is controlled by the intelligent water pump console 15 to carry out forward or reverse transportation, so that the water level of the salt water in the test box 1 can be adjusted. A liquid level sensor is also included, and the height of the salt water in the test box 1 is monitored in real time through the liquid level sensor. The water pump 17 is used to realize the dry-wet cycle of the experimental component 12, 12 hours of drying, and 12 hours of soaking. The water level of the test area, the chloride ion solubility in the water tank, and the pH value of the solution are adjusted according to the test conditions, so as to achieve the purpose of accelerating the corrosion of the experimental component 12.

[0039] The lifting assembly 5 can be installed on the top of the test box 1 by using a hydraulic cylinder. A pressing plate 6 is installed at the output end of the lifting assembly 5 facing downward, and the lifting assembly 5 drives the pressing plate 6 to lift vertically. A pressure sensor 7 is installed between the output end of the lifting assembly 5 and the pressing plate 6, or a pressure sensor 7 is installed on the bottom plate of the pressing plate 6. The pressure sensor 7 is used to monitor the load size / load information of the experimental component in real time.

[0040] The height sensor 8 can be fixed on the side wall of the pressing plate 6 by magnetic attraction using a magnetic infrared sensing device. The height sensor 8 is used to monitor the height position of the pressing plate 6 in real time.

[0041] The wave-making component includes a lateral force component 10 and a push plate 11; the lateral force component 10 can be installed on the bottom plate 18 by an electric push rod, and the push plate 11 is installed at the output end of the lateral force component 10, and the push plate 11 is relatively placed in the test box 1. The lateral force component 10 drives the push plate 11 to reciprocate horizontally in the test box 1, which can cause waves to the pool of the test box 1, thereby achieving the purpose of simulating waves to scour the experimental component 12;

[0042] The heating assembly 23 uses a heating rod installed in the test box 1 to heat the water pool. The test box 1 is also equipped with a temperature monitor 21 to measure the temperature of the water pool. The two cooperate to control the water temperature to simulate the change of spring, summer, autumn and winter seasons within one day.

[0043] A chloride ion solubility monitor 22 is also installed in the test box 1 for real-time monitoring of the chloride ion solubility of the solution in the pool.

[0044] The water tank 19 can be supplemented with salt water through the water tank inlet 16 , and a chloride ion solubility monitor 22 can also be provided in the water tank 19 .

[0045] The fixed component base 25 is detachably fixed to the inner wall of the test box 1 by bolts. A plurality of through slots are horizontally provided on the fixed component base 25. The fixed component base 25 limits the horizontal freedom of the experimental component 12 through the through slots. The fixed component base 25 can be replaced according to the different shapes of the experimental component 12.

[0046] The test box 1, the pressing plate 6, the pushing plate 11, the bottom plate 18, the water tank 19 and the fixing member base 25 are made of stainless steel.

[0047] Working principle:

[0048] The experimental component 12 is vertically inserted into the through slot of the fixed component base 25, and the lifting assembly 5 is lowered to drive the pressure plate 6 to press down on the top wall of the experimental component 12, and the pressure sensor 7 is used to monitor the load size / load information of the experimental component 12 in real time.

[0049] The lifting assembly 5 rises and drives the pressing plate 6 to rise to separate from the experimental component 12 .

[0050] The lateral force assembly 10 drives the push plate 11 to move horizontally and repeatedly, and the horizontal and repeated movement of the push plate 11 causes the salt water in the test box 1 to simulate waves to simulate sea waves.

[0051] At the same time, pressure is applied to the experimental component 12 to simulate waves, water temperature changes, and water level changes to achieve dry-wet cycles, which together well simulate the actual working conditions of marine engineering under the atmosphere and ocean.

[0052] By adjusting the chloride ion solubility and the pH value of the solution in the water tank 19 / test box 1, the purpose of accelerating the corrosion of the test component 12 can be achieved. The salt water is a chloride ion solution with a 5% sodium chloride solution, and the pH can be adjusted to acidic, neutral or alkaline according to the test conditions.

[0053] Embodiment 2: includes all the contents of Embodiment 1, except that:

[0054] The lifting assembly 5 and the pressing plate 6 cooperate to apply a simple harmonic load to the experimental component, so that the component is subjected to a sinusoidal load. The mathematical expression is:

[0055]

[0056] Among them, F mean is the average load, F amp is the load amplitude, f is the frequency, is the phase angle. These parameters can be adjusted to simulate different alternating load conditions according to actual needs.

[0057] Embodiment 3: includes all the contents of Embodiment 1 / 2, except that:

[0058] The test chamber 1 further includes a computer 24, which is electrically connected to the liquid level sensor, the pressure sensor 7, the lateral force assembly 10, the height sensor 8, the water pump 17, the temperature monitor 21, the chloride ion solubility monitor 22 and the heating assembly 23. The computer 24 can control the salt water height and water temperature in the test chamber 1, the load borne by the experimental component 12, and the speed / height of the waves through the built-in program of the computer 24.

[0059] It also includes an intelligent water pump console 15 , and the computer 24 controls the water pump 17 via the intelligent water pump console 15 .

[0060] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A chloride ion corrosion test device, characterized in that: include: A test box (1), wherein a fixed component base (25), a lifting component (5) and a wave-making component are installed on the test box (1); A water tank (19), the water tank (19) being connected to the test box (1) via a pipe (14), a water pump (17) being installed on the pipe (14), the water pump (17) driving the salt water to flow bidirectionally between the water tank (19) and the test box (1) via the pipe (14); The fixed component base (25) is used to place the experimental component (12); A pressing plate (6) is installed at the output end of the lifting component (5), and the lifting of the lifting component (5) drives the pressing plate (6) to press the experimental component (12) or separate it; The wave-making component is used to generate waves in the test box (1).

2. A chloride ion corrosion test device according to claim 1, characterized in that: The pressing plate (6) is provided with a height sensor (8) for monitoring its height.

3. A chloride ion corrosion test device according to claim 2, characterized in that: The height sensor (8) adopts a magnetic infrared sensing device and is magnetically adsorbed on the pressing plate (6).

4. A chloride ion corrosion test device according to claim 1, characterized in that: A chloride ion solubility monitor (22) is installed in the test box (1).

5. A chloride ion corrosion test device according to claim 1, characterized in that: A temperature monitor (21) and a heating component (23) are installed in the test box (1).

6. A chloride ion corrosion test device according to claim 1, characterized in that: The output end of the lifting component (5) or the pressure plate (6) is provided with a pressure sensor (7), and the pressure sensor (7) is used to monitor the load size of the experimental component (12) in real time.

7. A chloride ion corrosion test device according to claim 1, characterized in that: The top of the water tank (19) is provided with a water tank water inlet (16).

8. A chloride ion corrosion test device according to claim 1, characterized in that: The wave-making component comprises a transverse motion force component (10) and a push plate (11) installed at the output end of the transverse motion force component (10), and the transverse motion force component (10) drives the push plate (11) to perform horizontal reciprocating motion.

9. A chloride ion corrosion test device according to claim 1, characterized in that: The fixing component base (25) is detachably mounted in the test box (1).

10. A chloride ion corrosion test device according to claim 9, characterized in that: The fixing component base (25) is vertically provided with a plurality of horizontally arranged through slots, and the through slots are adapted to the contours of the corresponding experimental components (12).

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