A concrete low-temperature salt corrosion resistance detection device

Abstract

This utility model relates to the field of concrete testing technology and discloses a low-temperature salt corrosion resistance testing device for concrete. It includes a fixed support plate, a testing component on the upper end of the fixed support plate, a testing box fixedly mounted on the upper end of the fixed support plate, a mixing component on the right end of the testing box, a liquid collection box at the bottom inside the testing box, a perforated placement plate fixedly mounted at the rear end inside the testing box, and a semiconductor cooling chip fixedly mounted on the left end of the testing box, with the hot end of the semiconductor cooling chip located on the outside of the testing box. This low-temperature salt corrosion resistance testing device for concrete, through the design of the semiconductor cooling chip and the heat-conducting aluminum frame, can accurately simulate a low-temperature environment. The heat-conducting aluminum frame ensures uniform temperature distribution inside the testing box, improving the accuracy of low-temperature environment simulation and providing reliable environmental conditions for low-temperature salt corrosion resistance testing of concrete.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, specifically to a low-temperature salt corrosion resistance testing device for concrete. Background Technology

[0002] In cold and saline regions, concrete structures are subjected to the combined effects of low temperatures and salt corrosion for extended periods, making them highly susceptible to freeze-thaw damage and salt ion erosion. This can lead to reduced strength, surface cracking, and other problems, severely impacting the safety and service life of buildings. Therefore, accurate testing of the low-temperature salt corrosion resistance of concrete is a crucial step in ensuring project quality.

[0003] Currently, commercially available concrete salt corrosion testing equipment struggles to control low-temperature environments, resulting in significant temperature fluctuations and an inability to accurately simulate actual low-temperature conditions. Some equipment also suffers from uneven salt solution concentration and insufficient contact with the concrete sample during the application of the salt solution, leading to substantial deviations in test results. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a low-temperature salt corrosion testing device for concrete.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A concrete low-temperature salt corrosion resistance testing device includes a fixed support plate. A testing component is provided at the upper end of the fixed support plate. The testing component includes a testing box. The testing box is fixedly installed at the upper end of the fixed support plate. A stirring component is provided at the right end of the testing box. A liquid collection box is provided at the bottom inside the testing box. A perforated placement plate is fixedly installed at the rear end inside the testing box. A semiconductor refrigeration chip is fixedly installed at the left end of the testing box. The hot end of the semiconductor refrigeration chip is located outside the testing box, and the cold end of the semiconductor refrigeration chip is located inside the testing box.

[0007] As a further embodiment of this utility model: a heat-conducting aluminum plate is fixedly installed on the hot end of the semiconductor refrigeration chip, a cold-conducting aluminum frame is fixedly installed on the cold end of the semiconductor refrigeration chip, the rear end of the cold-conducting aluminum frame is fixedly connected to the rear end of the detection box, the perforated placement plate is located inside the cold-conducting aluminum frame, a placement groove is provided on the front side of the cold-conducting aluminum frame, and a slot is provided on the upper end of the cold-conducting aluminum frame.

[0008] As a further improvement of this utility model: a temperature sensor is fixedly installed at the rear end inside the detection box, a humidity sensor is fixedly installed at the right end of the temperature sensor, and a salt concentration sensor is fixedly installed at the right end of the humidity sensor.

[0009] As a further embodiment of this utility model: the stirring assembly includes a connecting plate, the right end of the detection box is fixedly installed with the connecting plate, a reinforcing rib is provided between the connecting plate and the detection box, and a salt water storage tank is fixedly installed at the upper end of the connecting plate.

[0010] As a further embodiment of this utility model: a drive motor is provided in the middle of the upper end of the saline tank, a rotating shaft is fixedly installed at the transmission end of the lower end of the drive motor, and stirring rods are fixedly installed at the left and right ends of the rotating shaft. A feed pipe is provided on the right side of the upper end of the saline tank, and an infusion pump is provided on the left side of the upper end of the saline tank. A first connecting pipe is fixedly installed at the lower end of the infusion pump, and a second connecting pipe is fixedly installed at the upper end of the infusion pump. An atomizing nozzle is provided at the lower end of the second connecting pipe.

[0011] As a further improvement of this utility model: the front end of the detection box is provided with a movable door, the middle of the movable door is provided with a transparent observation window, the movable door and the detection box are locked together by a lock cylinder, a rubber sealing ring is provided at the connection between the movable door and the detection box, and a control switch is provided at the lower right corner of the upper end of the detection box. The control switch is electrically connected to the semiconductor cooling chip, temperature sensor, humidity sensor, salt concentration sensor, drive motor and infusion pump respectively.

[0012] As a further embodiment of this utility model: a support column is fixedly installed at the lower end of the fixed support plate, and a rubber anti-slip support sleeve is fixedly installed at the lower end of the support column.

[0013] Compared with the prior art, this utility model provides a low-temperature salt corrosion resistance testing device for concrete, which has the following beneficial effects:

[0014] 1. This concrete low-temperature salt corrosion resistance testing equipment, through the setting of semiconductor cooling chips, heat-conducting aluminum frames and other structures, can accurately simulate low-temperature environments, and the heat-conducting aluminum frames can make the temperature distribution inside the testing chamber uniform, improving the accuracy of low-temperature environment simulation and providing reliable environmental conditions for concrete low-temperature salt corrosion resistance testing.

[0015] 2. This low-temperature salt corrosion resistance testing equipment for concrete features a mixing component that can thoroughly stir the salt solution to ensure uniform salt concentration. The salt solution is then atomized and sprayed onto the concrete sample through an atomizing nozzle, resulting in more uniform contact between the salt solution and the concrete sample and improving the accuracy of the test results. The transparent observation window allows operators to easily observe the testing process, and the movable door facilitates the loading and unloading of concrete samples, improving testing efficiency.

[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the testing box of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the cooling aluminum frame of this utility model;

[0020] Figure 4 This is a magnified structural diagram showing a partial detail of the present invention.

[0021] In the diagram: 1. Fixed support plate; 2. Detection assembly; 201. Detection box; 202. Liquid collection box; 203. Perforated placement plate; 204. Semiconductor cooling chip; 205. Thermally conductive aluminum plate; 206. Cooling aluminum frame; 207. Temperature sensor; 208. Humidity sensor; 209. Salt concentration sensor; 3. Stirring assembly; 301. Connecting plate; 302. Reinforcing rib; 303. Salt storage tank; 304. Drive motor; 305. Feed pipe; 306. Rotating shaft; 307. Stirring rod; 4. Infusion pump; 5. First connecting pipe; 6. Second connecting pipe; 7. Atomizing nozzle; 8. Movable door; 9. Transparent observation window; 10. Lock cylinder; 11. Support column; 12. Rubber anti-slip support sleeve; 13. Control switch. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Example: A low-temperature salt corrosion resistance testing device for concrete, such as... Figures 1-4As shown, the device includes a fixed support plate 1, a detection component 2 at the upper end of the fixed support plate 1, a detection box 201, a stirring component 3 at the right end of the detection box 201, a liquid collection box 202 at the bottom inside the detection box 201, a perforated placement plate 203 at the rear end inside the detection box 201, and a thermoelectric cooler 204 at the left end of the detection box 201. The hot end of the thermoelectric cooler 204 is located outside the detection box 201, and the cold end of the thermoelectric cooler 204 is located inside the detection box 201.

[0025] like Figures 1-4 As shown, a heat-conducting aluminum plate 205 is fixedly installed on the hot end of the thermoelectric cooler 204, and a heat-conducting aluminum frame 206 is fixedly installed on the cold end of the thermoelectric cooler 204. The rear end of the heat-conducting aluminum frame 206 is fixedly connected to the rear end of the detection box 201. A perforated placement plate 203 is located inside the heat-conducting aluminum frame 206. A placement groove is provided on the front side of the heat-conducting aluminum frame 206, and a slot is provided on the upper end of the heat-conducting aluminum frame 206. A temperature sensor 207 is fixedly installed at the rear end inside the detection box 201. A humidity sensor 208 is fixedly installed at the right end of the temperature sensor 207. The right end of the humidity sensor 208 is fixedly installed... Equipped with a salt concentration sensor 209, the stirring assembly 3 includes a connecting plate 301. The connecting plate 301 is fixedly installed on the right end of the detection box 201. A reinforcing rib 302 is provided between the connecting plate 301 and the detection box 201. A salt water storage tank 303 is fixedly installed on the upper end of the connecting plate 301. Through the setting of structures such as the semiconductor cooling chip 204 and the heat-conducting aluminum frame 206, the low-temperature environment can be accurately simulated. The heat-conducting aluminum frame 206 can make the temperature distribution inside the detection box 201 as uniform as possible, which improves the accuracy of low-temperature environment simulation and provides reliable environmental conditions for the low-temperature salt corrosion resistance test of concrete.

[0026] like Figures 1-4As shown, a drive motor 304 is installed in the middle of the upper end of the saline tank 303. A rotating shaft 306 is fixedly installed at the transmission end of the lower end of the drive motor 304. Stirring rods 307 are fixedly installed at both ends of the rotating shaft 306. A feed pipe 305 is installed on the right side of the upper end of the saline tank 303. An infusion pump 4 is installed on the left side of the upper end of the saline tank 303. A first connecting pipe 5 is fixedly installed at the lower end of the infusion pump 4. A second connecting pipe 6 is fixedly installed at the upper end of the infusion pump 4. An atomizing nozzle 7 is installed at the lower end of the second connecting pipe 6. The front end of the detection box 201 is equipped with... The test box 201 has a movable door 8 with a transparent observation window 9 in the middle. The movable door 8 and the test box 201 are locked together by a lock cylinder 10. A rubber sealing ring is provided at the connection between the movable door 8 and the test box 201. A control switch 13 is provided at the lower right corner of the upper end of the test box 201. A support column 11 is fixedly installed at the lower end of the fixed support plate 1. A rubber anti-slip support sleeve 12 is fixedly installed at the lower end of the support column 11. The transparent observation window 9 allows the operator to observe the test situation. The movable door 8 facilitates the loading and unloading of concrete samples, improving the testing efficiency.

[0027] Working principle: When conducting low-temperature salt corrosion resistance testing on concrete, firstly, open the movable door 8 through the lock cylinder 10, and place the concrete sample to be tested stably on the perforated placement plate 203 inside the testing chamber 201, ensuring that the sample is inside the cooling aluminum frame 206. Then, close the movable door 8 and lock it with the lock cylinder 10. The rubber sealing ring at the connection between the movable door 8 and the testing chamber 201 ensures the airtightness of the testing chamber 201. Next, add an appropriate amount of salt and water through the feed pipe 305 at the top of the salt water storage tank 303. Then, operate the control switch 13 to start the drive motor 304, driving... Motor 304 drives rotating shaft 306 and stirring rod 307 to rotate, thoroughly stirring the salt and water in salt storage tank 303 to ensure uniform salt solution concentration. After stirring, control switch 13 starts infusion pump 4. Infusion pump 4 extracts salt solution from salt storage tank 303 through first connecting pipe 5, and then delivers it to atomizing nozzle 7 through second connecting pipe 6. Atomizing nozzle 7 atomizes the salt solution and sprays it evenly onto the concrete sample surface on perforated placement plate 203. Excess salt solution drips through the holes in perforated placement plate 203 into collection box 202. Simultaneously, [the process continues...] The thermoelectric cooler 204 is activated by control switch 13. The cooling end of the thermoelectric cooler 204 generates cooling energy, which is transferred to the interior of the testing chamber 201 through the heat-conducting aluminum frame 206, creating a low-temperature environment inside the testing chamber 201. The heat-conducting aluminum frame 206 ensures uniform distribution of the cooling energy, guaranteeing that the concrete sample is under uniform low-temperature conditions. The heat generated by the hot end of the thermoelectric cooler 204 is dissipated to the outside of the testing chamber 201 through the heat-conducting aluminum plate 205. During this process, a fan can be directed at the heat-conducting aluminum plate 205. Throughout the testing process, the temperature sensor 207 and humidity sensor... The device 208 and the salt concentration sensor 209 monitor the temperature, humidity and salt concentration inside the test chamber 201 in real time and transmit the monitoring data to the control switch 13. The operator can understand the parameter changes of the test environment through the control switch 13, and can also directly observe the state of the concrete sample in the low temperature salt corrosion environment through the transparent observation window 9 on the movable door 8, thereby completing the test of the low temperature salt corrosion resistance of concrete. The support column 11 and the rubber anti-slip support sleeve 12 at the lower end of the fixed support plate 1 can ensure that the equipment is placed stably during the test and avoid the equipment shaking from affecting the test results.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A concrete low-temperature salt corrosion resistance testing device, comprising a fixed support plate (1), characterized in that: The upper end of the fixed support plate (1) is provided with a detection component (2), the detection component (2) includes a detection box (201), the upper end of the fixed support plate (1) is fixedly installed with the detection box (201), the right end of the detection box (201) is provided with a stirring component (3), the bottom of the inside of the detection box (201) is provided with a liquid collection box (202), the rear end of the inside of the detection box (201) is fixedly installed with a perforated placement plate (203), the left end of the detection box (201) is fixedly installed with a semiconductor cooling chip (204), the hot end of the semiconductor cooling chip (204) is located on the outside of the detection box (201), and the cold end of the semiconductor cooling chip (204) is located inside the detection box (201).

2. The concrete low-temperature salt corrosion resistance testing equipment according to claim 1, characterized in that: The hot end of the semiconductor cooling chip (204) is fixedly mounted with a heat-conducting aluminum plate (205), and the cold end of the semiconductor cooling chip (204) is fixedly mounted with a heat-conducting aluminum frame (206). The rear end of the heat-conducting aluminum frame (206) is fixedly connected to the rear end of the detection box (201). The perforated placement plate (203) is located inside the heat-conducting aluminum frame (206). A placement groove is provided on the front side of the heat-conducting aluminum frame (206), and a slot is provided on the upper end of the heat-conducting aluminum frame (206).

3. The concrete low-temperature salt corrosion resistance testing equipment according to claim 2, characterized in that: A temperature sensor (207) is fixedly installed at the rear end inside the detection box (201). A humidity sensor (208) is fixedly installed at the right end of the temperature sensor (207). A salt concentration sensor (209) is fixedly installed at the right end of the humidity sensor (208).

4. The concrete low-temperature salt corrosion resistance testing equipment according to claim 1, characterized in that: The stirring assembly (3) includes a connecting plate (301). The connecting plate (301) is fixedly installed on the right end of the detection box (201). A reinforcing rib (302) is provided between the connecting plate (301) and the detection box (201). A salt water storage tank (303) is fixedly installed on the upper end of the connecting plate (301).

5. The concrete low-temperature salt corrosion resistance testing equipment according to claim 4, characterized in that: A drive motor (304) is provided in the middle of the upper end of the saline tank (303). A rotating shaft (306) is fixedly installed at the transmission end of the lower end of the drive motor (304). A stirring rod (307) is fixedly installed at the left and right ends of the rotating shaft (306). A feed pipe (305) is provided on the right side of the upper end of the saline tank (303). An infusion pump (4) is provided on the left side of the upper end of the saline tank (303). A first connecting pipe (5) is fixedly installed at the lower end of the infusion pump (4). A second connecting pipe (6) is fixedly installed at the upper end of the infusion pump (4). An atomizing nozzle (7) is provided at the lower end of the second connecting pipe (6).

6. The concrete low-temperature salt corrosion resistance testing equipment according to claim 1, characterized in that: The front end of the test box (201) is provided with a movable door (8), and a transparent observation window (9) is provided in the middle of the movable door (8). The movable door (8) and the test box (201) are locked together by a lock cylinder (10). A rubber sealing ring is provided at the connection between the movable door (8) and the test box (201). A control switch (13) is provided at the lower right corner of the upper end of the test box (201).

7. The concrete low-temperature salt corrosion resistance testing equipment according to claim 1, characterized in that: The lower end of the fixed support plate (1) is fixedly installed with a support column (11), and the lower end of the support column (11) is fixedly installed with a rubber anti-slip support sleeve (12).

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