Corrosion experiment device for corrosion inhibitor
By designing a corrosion inhibitor corrosion test device and utilizing a liquid level sensor and a drying mechanism, the problem of inaccurate visual observation of the corrosion inhibitor's anti-corrosion effect was solved, providing accurate data support.
Patent Information
- Application Number
- CN202520238093.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-14
AI Technical Summary
In existing technologies, when observing the corrosion protection effect of corrosion inhibitors on metal objects with the naked eye, it is difficult to accurately detect slight shape changes, which can easily lead to misleading conclusions.
Design a corrosion inhibitor corrosion test device, including a processing box, a detachable top cover, a drying mechanism and a corrosion testing mechanism. The liquid level is detected by a liquid level sensor, and the metal products are dried with hot air by the heating plate and suction fan of the drying mechanism. Accurate data is obtained by combining weight comparison.
It enables accurate detection of the corrosion inhibitor's anti-corrosion effect, avoids misleading visual observation, and provides more precise data support.
Smart Images
Figure CN223827523U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrosion inhibitor experimental technology, and more specifically, to a corrosion inhibitor corrosion experimental device. Background Technology
[0002] Corrosion inhibitors are chemical substances that can slow down or prevent metal corrosion. They are commonly used in steel mills and metal parts factories, such as for metal parts and reinforcing bars. After production, these products need to be treated to prevent rust. Corrosion inhibitors are usually in powder form and are often added to products such as coatings, paints, cleaning agents, and cooling water to protect metal surfaces from oxidation, corrosion, and other forms of chemical attack, thereby extending the service life of metal products and reducing maintenance costs.
[0003] Currently, to verify the effectiveness of corrosion inhibitors in preventing rust on metal objects, a dot is first marked on the object, and then the metal object with the corrosion inhibitor is placed in a corrosive solution. After a period of corrosion, the metal object is taken out, rinsed clean, and the shape change at the marked location is observed to determine the effectiveness of the corrosion inhibitor in preventing rust on metal objects.
[0004] While the above methods can measure the anti-corrosion effect of corrosion inhibitors on metal objects, they only rely on visual observation of the shape changes of the marked points. Significant corrosion changes are only clearly visible to the naked eye, while slight shape changes are difficult to notice, which can easily lead to incorrect conclusions and mislead later use. Therefore, we propose a corrosion inhibitor corrosion test device to solve the above problems. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a corrosion inhibitor corrosion test device that overcomes or at least partially solves the above technical problems.
[0006] This utility model is implemented as follows:
[0007] This utility model provides a corrosion inhibitor corrosion test device, including a processing box with a detachable top cover and a drying mechanism. The drying mechanism includes a heating plate, a fan, and a connecting pipe. A hollow box is fixedly installed on the outer surface of the processing box, and a heating plate is fixedly installed inside the hollow box. An air inlet pipe is installed inside the hollow box, with one end of the air inlet pipe penetrating the outer surface of the hollow box. A fan is fixedly installed on the other side of the processing box, and a connecting pipe is installed at the air inlet end of the fan, with one end of the connecting pipe installed inside the hollow box.
[0008] The corrosion testing facility includes:
[0009] The installation compartment has a connecting rod installed on the inner side of the top cover, one end of which is fixedly connected to the installation compartment, and the interior of the installation compartment is hollow.
[0010] A circular hole is formed on the outer surface of the mounting chamber and communicates with the interior of the mounting chamber.
[0011] A liquid level sensor is installed inside the processing chamber.
[0012] In a preferred embodiment, an inlet pipe is fixedly connected to the outer surface of the processing box, and a drain pipe is fixedly installed at a position slightly lower than the inlet pipe. Control valves are installed on the inlet pipe and the drain pipe, respectively.
[0013] In a preferred embodiment, a hollow cylinder is fixedly connected to the bottom of the top cover, and a spring is installed inside the hollow cylinder. One end of the spring is fixedly connected to a connecting rod, and one end of the connecting rod is slidably connected to the inside of the hollow cylinder.
[0014] In a preferred embodiment, the top of the installation compartment is configured as an opening, the installation compartment is located inside the top cover, and the top of the top cover has a through hole.
[0015] In a preferred embodiment, the liquid level sensor is electrically connected to an indicator light, which is mounted on the outer surface of the processing box and corresponds to the position of the liquid level detection end at each location.
[0016] The corrosion test apparatus for corrosion inhibitors provided by this utility model has the following beneficial effects:
[0017] 1. The device features a vertically movable connecting rod on the inner side of the top cover, with one end of the rod fixedly connected to the mounting chamber. The outer surface of the mounting chamber has a round hole, allowing the corrosive liquid to enter the chamber for corrosion testing of metal products. This allows for the determination of the impact of corrosion inhibitors on the corrosion of metal products. This device effectively replaces visual observation and provides more accurate data through weight comparison, preventing misleading subsequent use.
[0018] 2. By installing a suction fan and a hollow box on the processing box, and an electric heating plate installed inside the hollow box, the gas inside the hollow box is heated by the electric heating plate, and the hot gas is extracted by the suction fan and transported through the connecting pipe. When the hot gas passes through the metal product, it blows hot gas onto the metal product to dry it, so that the product can be weighed later to meet the requirements of use. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the bottom structure of the top cover of this utility model;
[0022] Figure 3 This is a schematic diagram of the internal structure of the processing box of this utility model;
[0023] Figure 4 This is a schematic diagram of the internal structure of the hollow box of this utility model;
[0024] In the diagram: 1. Processing box; 2. Top cover; 3. Corrosion testing mechanism; 31. Installation chamber; 311. Connecting rod; 32. Round hole; 33. Liquid level sensor; 4. Liquid inlet pipe; 5. Liquid outlet pipe; 6. Control valve; 7. Hollow cylinder; 8. Spring; 9. Through hole; 10. Indicator light; 11. Drying mechanism; 111. Heating plate; 112. Fan; 113. Connecting pipe; 12. Hollow box; 13. Air inlet pipe. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] Example
[0027] Reference Figures 1-4 This utility model provides a technical solution: a corrosion inhibitor corrosion test device, including a processing box 1 and a corrosion testing mechanism 3. The processing box 1 is equipped with a detachable top cover 2. The corrosion testing mechanism 3 includes a mounting chamber 31. A connecting rod 311 is installed on the inner side of the top cover 2. One end of the connecting rod 311 is fixedly connected to the mounting chamber 31. The interior of the mounting chamber 31 is hollow. A round hole 32 is opened on the outer surface of the mounting chamber 31 and communicates with the interior of the mounting chamber 31. A liquid level sensor 33 is installed inside the processing box 1.
[0028] In a preferred embodiment, an inlet pipe 4 is fixedly connected to the outer surface of the processing box 1, and a drain pipe 5 is fixedly installed at a position slightly lower than the inlet pipe 4. Control valves 6 are respectively installed on the inlet pipe 4 and the drain pipe 5. This device will place metal objects in the processing box 1 containing corrosive liquid to test the effect of the corrosion inhibitor. Therefore, the processing box 1 is equipped with an inlet pipe 4 and a drain pipe 5. The inlet pipe 4 can transport the corrosive liquid into the interior of the processing box 1, and the drain pipe 5 can discharge the used corrosive liquid to meet the requirements of use.
[0029] In a preferred embodiment, the bottom of the top cover 2 is fixedly connected to the hollow cylinder 7. A spring 8 is installed inside the hollow cylinder 7. One end of the spring 8 is fixedly connected to the connecting rod 311, and one end of the connecting rod 311 is slidably connected to the inside of the hollow cylinder 7. After the metal items are immersed in the corrosive liquid, they need to be taken out to bear weight. However, the outer surface of the product after immersion is wet and the corrosive liquid is still attached to its outer surface. Therefore, in order to prevent harm to the workers, the product needs to be dried before it is taken out. So, a spring 8 is installed on the connecting rod 311. The spring 8 can drive the product to the bend of the connecting pipe 113 so that the product can be dried by blowing air through the connecting pipe 113.
[0030] In a preferred embodiment, the top of the installation chamber 31 is set as an opening, and the installation chamber 31 is located inside the top cover 2. The top of the top cover 2 is provided with a through hole 9. This device uses hot air to dry the product, so gas will enter the interior of the processing box 1. In order to prevent a large amount of gas from entering the interior of the processing box 1 and increasing the internal pressure of the processing box 1 and causing danger, a through hole 9 is provided on the top cover 2. The gas will be discharged to the atmosphere through the through hole 9 to ensure the air pressure inside the processing box 1 is balanced.
[0031] Since the outer surface of the processing tank 1 is not transparent, it is not easy to know the liquid level when adding etching solution into the processing tank 1, and it is easy to overflow. Therefore, in this device, the liquid level sensor 33 is electrically connected to the indicator light 10. The indicator light 10 is installed on the outer surface of the processing tank 1 and corresponds to the position of the liquid level detection end at each location. When adding etching solution into the processing tank 1, the liquid level of the etching solution is detected by the liquid level sensor 33 and the corresponding indicator light 10 is lit, so that the liquid level of the etching solution inside the processing tank 1 can be clearly known, thus meeting the usage requirements.
[0032] After the product corrosion test, a large amount of liquid will adhere to the outer surface of the product. If it is directly subjected to load, it will affect the test. Therefore, a drying mechanism 11 is installed on the processing box 1. The drying mechanism 11 includes an electric heating plate 111, a suction fan 112 and a connecting pipe 113. A hollow box 12 is fixedly installed on the outer surface of the processing box 1. An electric heating plate 111 is fixedly installed inside the hollow box 12. An air inlet pipe 13 is installed inside the hollow box 12. One end of the air inlet pipe 13 penetrates the outer surface of the hollow box 12. A suction fan 112 is fixedly installed on the other side of the processing box 1. A connecting pipe 113 is installed at the air inlet end of the suction fan 112. One end of the connecting pipe 113 is installed inside the hollow box 12.
[0033] After soaking the product for a period of time, the corrosive liquid is discharged from the inside of the processing box 1. At this time, the corrosive liquid inside the installation chamber 31 will flow out and move upward under the action of the spring 8, thereby driving the installation chamber 31 to the position of the connecting pipe 113. The gas inside the hollow box 12 is heated by the electric heating plate 111 and delivered to the inside of the connecting pipe 113. The gas is delivered to the bend of the connecting pipe 113 and will be discharged from the air outlet on the connecting pipe 113, blowing on the metal product. Since it is hot air, it can accelerate the drying and evaporation of the moisture on the outer surface of the product, and quickly dry the product so that the load-bearing data and the pre-loaded data can be taken out for comparison, the weight change can be observed, and the corresponding conclusions can be drawn. The effect of the corrosion inhibitor can also be known.
[0034] Specifically, the working process or working principle of a corrosion inhibitor corrosion test device is as follows: In order to verify the effect of corrosion inhibitor on preventing rust on metal objects, a point is first marked on the object, and then the metal object coated with corrosion inhibitor is placed in the corrosion liquid. After a period of corrosion, the metal object is taken out, rinsed clean, and the shape change of the marked position is observed, thereby knowing the effect of corrosion inhibitor on preventing rust on metal objects.
[0035] While the above methods can measure the anti-corrosion effect of corrosion inhibitors on metal objects, they rely solely on visual observation of changes in the shape of the marked points. Significant changes in corrosion are only clearly visible to the naked eye, while minor changes are difficult to detect, leading to erroneous conclusions and misleading later use. Therefore, this device was designed to solve this problem.
[0036] When using this device to experiment with corrosion inhibitors, first load the uncoated metal product, then place the metal product coated with corrosion inhibitor inside the mounting chamber 31. Then, add the corrosion solution to the inside of the processing chamber 1 through the liquid inlet pipe 4, and inject a certain amount of corrosion solution into the processing chamber 1. Observe the indicator light 10 to know the liquid level of the corrosion solution inside the processing chamber 1. As the liquid level rises, it will enter the inside of the mounting chamber 31 through the round hole 32. As more corrosion solution enters the mounting chamber 31, it will increase the weight of the mounting chamber 31, causing the mounting chamber 31 to move downward and move the metal product downward, so that the metal product is immersed in the corrosion solution. Then, the addition of corrosion solution to the inside of the processing chamber 1 can be stopped.
[0037] The metal product is immersed in the corrosion solution. After a period of immersion, the corrosion solution will continue to corrode the metal product coated with corrosion inhibitor. After the immersion time reaches the set time, the corrosion solution inside the processing box 1 can be discharged through the drain pipe 5. At this time, the corrosion solution inside the installation chamber 31 will flow out from the inside of the installation chamber 31. As the weight of the installation chamber 31 continues to decrease, the installation chamber 31 will be pulled upward under the action of the spring 8, and the installation chamber 31 will be pulled to the position of the connecting pipe 113 so that the metal product can be dried by blowing air.
[0038] This device has a connecting pipe 113 that passes around the top of the mounting chamber 31, and an air jet hole is provided at the bend of the connecting pipe 113. The air jet hole blows air directly into the mounting chamber 31 to dry the metal products inside the mounting chamber 31. To improve the drying effect, the air inside the hollow box 12 is heated by the electric heating plate 111, and the hot air inside the hollow box 12 is extracted by the suction fan 112 and enters the interior of the connecting pipe 113. Hot air can be used to blow on the metal products to make them dry quickly.
[0039] After the gas inside the hollow box 12 is extracted, the internal air pressure will decrease. At this time, outside air will automatically enter the interior of the hollow box 12 through the air inlet pipe 13. The air inlet pipe 13 is set in a curved state inside the hollow box 12 to increase the gas travel inside the hollow box 12, thereby heating the gas inside the air inlet pipe 13 to meet the requirements of use.
[0040] After drying the metal product, take it out and weigh it. Compare the weight with the previous weight and observe the weight change. This will give you the corrosion efficiency of the metal product after using the corrosion inhibitor, so as to obtain more accurate data for later use.
[0041] It should be noted that the liquid level sensor 33, indicator light 10, heating plate 111 and suction fan 112 are existing devices or equipment, or devices or equipment that can be implemented by existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.
Claims
1. A corrosion inhibitor testing apparatus, characterized in that, Includes a processing box (1), on which a removable top cover (2) is installed; A corrosion testing mechanism (3), the corrosion testing mechanism (3) comprising: The mounting compartment (31) has a connecting rod (311) installed on the inner side of the top cover (2), one end of the connecting rod (311) is fixedly connected to the mounting compartment (31), and the interior of the mounting compartment (31) is hollow. A circular hole (32) is formed on the outer surface of the mounting chamber (31) and communicates with the interior of the mounting chamber (31); A liquid level sensor (33) is installed inside the processing box (1).
2. The corrosion inhibitor testing apparatus according to claim 1, characterized in that, The processing box (1) is fixedly connected to the liquid inlet pipe (4), and the liquid outlet pipe (5) is fixedly installed at a position slightly lower than the liquid inlet pipe (4). Control valves (6) are respectively installed on the liquid inlet pipe (4) and the liquid outlet pipe (5).
3. The corrosion inhibitor testing apparatus according to claim 1, characterized in that, The bottom of the top cover (2) is fixedly connected to a hollow cylinder (7). A spring (8) is installed inside the hollow cylinder (7). One end of the spring (8) is fixedly connected to a connecting rod (311), and one end of the connecting rod (311) is slidably connected to the inside of the hollow cylinder (7).
4. The corrosion inhibitor testing apparatus according to claim 1, characterized in that, The top of the installation compartment (31) is set as an opening, the installation compartment (31) is located inside the top cover (2), and the top of the top cover (2) is provided with a through hole (9).
5. The corrosion inhibitor testing apparatus according to claim 1, characterized in that, The liquid level sensor (33) is electrically connected to the indicator light (10), which is installed on the outer surface of the processing box (1) and corresponds to the position of the liquid level detection end at each location.
6. The corrosion inhibitor testing apparatus according to claim 1, characterized in that, The processing box (1) is equipped with a drying mechanism (11), which includes a heating plate (111), a suction fan (112), and a connecting pipe (113).
7. The corrosion inhibitor testing apparatus according to claim 6, characterized in that, A hollow box (12) is fixedly installed on the outer surface of the processing box (1). An electric heating plate (111) is fixedly installed inside the hollow box (12). An air inlet pipe (13) is installed inside the hollow box (12), and one end of the air inlet pipe (13) penetrates the outer surface of the hollow box (12).
8. The corrosion inhibitor testing apparatus according to claim 7, characterized in that, A suction fan (112) is fixedly installed on the other side of the processing box (1). A connecting pipe (113) is installed at the air inlet end of the suction fan (112), and one end of the connecting pipe (113) is installed inside the hollow box (12).