Full-automatic concrete sulfate erosion resistance simulation device

Abstract

The utility model discloses a full-automatic concrete sulfate erosion resistance simulation device, which relates to the technical field of concrete performance detection devices and comprises a first box body, a second box body and an electric lifting device which are communicated with one another, a soaking chamber and a console chamber are arranged in the first box body; a drying measuring chamber and a liquid storage chamber are arranged in the second box body and are both connected with a motor cabin, the drying measuring chamber is located above the liquid storage chamber, a heating measuring element is arranged above the liquid storage chamber and is connected to the drying measuring chamber through an air pipe, and a pressurizing device is arranged at the bottom of the liquid storage chamber; the electric lifting device is arranged at the bottom of the first box body, an electric sliding rail device is arranged on the electric lifting device, a test piece frame is arranged on the electric sliding rail device, and a test piece is arranged on the test piece frame. The box body structure is optimized, a stacked box body structure is adopted, the soaking chamber and the drying measuring chamber are distributed in a stacked mode, the position of a test piece is switched through the electric lifting device and the electric sliding rail device, and the occupied area is reduced.

Description

A fully automated concrete sulfate attack simulation device Technical Field

[0001] This utility model relates to the technical field of concrete performance testing devices, and in particular to a fully automatic concrete sulfate erosion simulation device. Background Technology

[0002] Concrete, as the most widely used structural material in construction engineering, directly impacts project safety due to its performance stability. However, under complex environmental conditions, especially when groundwater and soil contain corrosive media, concrete structures are prone to corrosion and deterioration, leading to a significant reduction in their mechanical properties, durability, and dimensional stability, which in turn can cause serious safety accidents and economic losses. Extensive research data confirms that sulfate attack is the primary factor causing concrete performance degradation in salt crystallization zones, significantly reducing the service life of structural components. Therefore, developing specialized testing equipment to systematically evaluate the sulfate resistance of concrete is of great significance for improving concrete durability research and engineering testing capabilities.

[0003] Current equipment for testing concrete's resistance to sulfate attack has significant limitations, primarily because the equipment operates independently at each stage of the testing process, and specimen transfer relies entirely on manual operation. Specifically, researchers must repeatedly perform the following steps: removing specimens from the immersion tank to air-dry, manually transporting them to an oven for drying, cooling, and then returning them to the solution. When the testing period is long, this operational mode leads to three major problems: first, the high frequency of manual handling significantly increases the workload of the testing personnel; second, prolonged exposure to a corrosive environment poses potential health hazards to the operators; and more importantly, unavoidable bumps and knocks to the specimens during manual handling introduce additional damage, severely affecting the accuracy and repeatability of the test data. Therefore, a fully automated concrete sulfate attack simulation device is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to provide a fully automatic concrete sulfate erosion simulation device to overcome the shortcomings of existing technology where the equipment in each stage of the test process is independent and the transfer of specimens relies entirely on manual operation.

[0005] To achieve the above objectives, this utility model provides a fully automatic concrete sulfate erosion simulation device, comprising a first chamber, a second chamber, and an electric lifting device; the first chamber and the second chamber are connected, and the first chamber contains an immersion chamber and a control room;

[0006] The second housing contains a drying measurement chamber and a liquid storage chamber, both connected to a motor compartment. The drying measurement chamber is located above the liquid storage chamber, and a heating measurement element is installed above the liquid storage chamber. The heating measurement element is connected to the drying measurement chamber via an air pipe. A pressurization device is installed at the bottom of the liquid storage chamber. The pressurization device is used for solution flow exchange of sodium sulfate solution in the liquid storage chamber and the soaking chamber. The heating measurement element provides hot air to the drying measurement chamber via an air pipe.

[0007] The electric lifting device is located at the bottom of the first housing. The electric lifting device is equipped with an electric slide rail device, and the electric slide rail device is equipped with a specimen rack, on which specimens are placed.

[0008] Furthermore, the electric lifting device includes a first power device and a lifting device. The first power device is located at the bottom of the soaking chamber, and one end of the lifting device is connected to the first power device, while the other end is located at the bottom of the control room.

[0009] Furthermore, the drying and measuring chamber is connected to a first motor compartment, and the liquid storage chamber is connected to a second motor compartment; the electric slide rail device includes a second power device and a first slide rail and a second slide rail. The second power device is located at the bottom of the first motor compartment, the first slide rail is located at the top of the lifting device, and the second slide rail is located at the bottom of the drying and measuring chamber. When the lifting device is raised, the first slide rail and the second slide rail can be aligned.

[0010] Furthermore, the second motor compartment is equipped with a heating device that provides power to the pressurization device and the heating measurement elements.

[0011] Furthermore, temperature and humidity sensors are installed on the top of both the soaking chamber and the drying measurement chamber.

[0012] Furthermore, the outside of the liquid storage chamber is provided with an inlet and an outlet for injecting and discharging sodium sulfate solution, and a concentration sensor is provided inside the liquid storage chamber.

[0013] Furthermore, the first and second boxes are connected by a liquid exchange channel to facilitate the flow exchange of sodium sulfate solution.

[0014] Furthermore, a test chamber cover is provided on the upper outer side of the first and second chambers, and a control console is connected to the test chamber cover. The control console is connected to the control room. A first laser sensor is provided at the bottom of the test chamber cover and at the top of the drying measurement chamber, and a second laser sensor is provided at the bottom of the test chamber cover and at the top of the soaking chamber.

[0015] Furthermore, the first motor compartment is connected to a first heat dissipation door, and the second motor compartment is connected to a second heat dissipation door.

[0016] Furthermore, the control room is connected to a third heat dissipation door.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] This invention provides a fully automatic concrete sulfate attack simulation device. By combining an electric lifting device and an electric sliding rail device, the specimen is automatically transferred to the soaking, drying, baking, and cooling zones, avoiding manual intervention, reducing experimental errors, and improving the accuracy and reliability of test results. The device features an optimized box structure, employing a stacked box design that overlaps the soaking chamber and the drying measurement chamber. The electric lifting device and electric sliding rail device allow for switching of specimen positions, reducing the floor space required.

[0019] The immersion chamber and the storage chamber of this invention are connected, and the exchange of solutions between the two chambers is promoted by a pressurization device to simulate a real corrosion environment.

[0020] The present invention has a first laser sensor and a second laser sensor respectively installed in the immersion chamber and the drying and measuring chamber. After cooling, the quality of the specimen and the surface peeling are automatically measured, reducing manual intervention and making the test more convenient and accurate. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the external structure of a fully automatic concrete sulfate erosion simulation device according to an embodiment of this utility model.

[0022] Figure 2 is a schematic diagram of the first box of a fully automatic concrete sulfate erosion simulation device according to an embodiment of this utility model.

[0023] Figure 3 is a schematic diagram of the first chamber of a fully automatic concrete sulfate erosion simulation device according to an embodiment of the present invention.

[0024] Figure 4 is a schematic diagram of the interior of the second chamber of a fully automatic concrete sulfate erosion simulation device according to an embodiment of this utility model.

[0025] Figure 5 is a schematic diagram of the appearance of the second box of a fully automatic concrete sulfate erosion simulation device according to an embodiment of this utility model.

[0026] Figure 6 is a schematic diagram of the left side cross-section of a fully automatic concrete sulfate erosion simulation device according to an embodiment of this utility model.

[0027] Figure 7 is a schematic diagram of the left side cross-section of a fully automatic concrete sulfate erosion simulation device according to an embodiment of this utility model.

[0028] Figure 8 is a schematic diagram of the test chamber cover structure of a fully automatic concrete sulfate erosion simulation device according to an embodiment of this utility model.

[0029] In the diagram: 1. Test chamber cover; 2. Control console; 3. Liquid inlet; 4. Liquid outlet; 5. Third heat dissipation door; 6. First chamber; 7. Gas pipe; 8. Second chamber; 9. First motor compartment; 10. First heat dissipation door; 11. Second motor compartment; 12. Second heat dissipation door; 13. Temperature sensor; 14. Electric slide rail device; 15. Humidity sensor; 16. Specimen; 17. Specimen rack; 18. Electric lifting device; 19. Immersion chamber; 20. Control console room; 21. First laser sensor; 22. Drying and measuring chamber; 23. Liquid storage chamber; 24. Pressurization device; 25. Concentration sensor; 26. Heating device; 27. Heating measuring element; 28. Solution exchange channel; 29. ​​Second laser sensor. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] As shown in Figures 1 to 8, this utility model provides a fully automatic concrete sulfate attack simulation device, which is a rectangular test device, including a first box 6 and a second box 8 connected together. The bottoms of the first box 6 and the second box 8 are connected through a liquid exchange channel 28, and a test box cover 1 is provided on the upper outer side of the first box 6 and the second box 8. The test box cover 1 is connected to a control console 2.

[0033] Figure 3 shows the internal structure of the first housing 6. The first housing 6 contains an immersion chamber 19, a control room 20, and an electric lifting device 18. The electric lifting device 18 includes a first power device and a lifting device. The first power device is located at the bottom of the immersion chamber 19. One end of the lifting device is connected to the first power device, and the other end is located at the bottom of the control room 20. An electric slide rail device 14 is provided on the lifting device, and a specimen rack 17 is provided on the electric slide rail device 14. Specimens 16 are placed on the specimen rack 17. The specimen rack 17 facilitates the transfer and fixation of the specimens 16. The electric lifting device 18 can raise and lower the specimen rack 17 so that the specimens 16 can be raised from the immersion chamber 19 to the same height as the drying and measuring chamber 22. The specimens 16, as the objects for sulfate resistance testing, are placed on the specimen rack 17. The sulfate resistance performance of concrete is simulated and tested by immersing in the immersion chamber 19 and drying and measuring in the drying and measuring chamber 22.

[0034] Figure 4 shows the internal structure of the second chamber 8. The second chamber 8 is equipped with a drying measurement chamber 22 and a liquid storage chamber 23. The drying measurement chamber 22 is connected to the first motor compartment 9, and the liquid storage chamber 23 is connected to the second motor compartment 11. The drying measurement chamber 22 is located above the liquid storage chamber 23. A heating measurement element 27 is installed above the liquid storage chamber 23. The heating measurement element 27 is connected to the drying measurement chamber 22 through an air pipe 7. The heating measurement element 27 provides hot air to the drying measurement chamber 22 through the air pipe 7 to realize the drying function of the specimen 16. The liquid storage chamber 23 is equipped with an inlet 3 and an outlet 4 on the outside. The liquid storage chamber 23 is equipped with a concentration sensor 25 to monitor the concentration of the solution in real time. A pressurization device 24 is installed at the bottom of the liquid storage chamber 23. The pressurization device 24 is used for solution flow exchange between the sodium sulfate solution in the liquid storage chamber 23 and the soaking chamber 19.

[0035] In some preferred embodiments of this utility model, the electric slide rail device 14 includes a second power device and a first slide rail and a second slide rail. The second power device is located at the bottom of the first motor compartment 9, the first slide rail is located at the top of the lifting device, and the second slide rail is located at the bottom of the drying and measuring chamber 22. When the lifting device is raised, the first slide rail and the second slide rail are aligned, allowing the specimen rack 17 to slide and transfer between the soaking chamber 19 and the drying and measuring chamber 22.

[0036] In some preferred embodiments of this utility model, a heating device 26 is provided inside the second motor compartment 11 to provide power to the pressurization device 24 and the heating measuring element 27, and the power supply of the heating device 26 is located at the bottom of the motor compartment 11.

[0037] In some preferred embodiments of this utility model, a temperature sensor 13 and a humidity sensor 15 are provided on the top of both the soaking chamber 19 and the drying measuring chamber 22.

[0038] In some preferred embodiments of this utility model, a test chamber cover 1 is provided on the upper outer side of the first chamber 6 and the second chamber 8. The test chamber cover 1 is connected to a control console 2, and the control console 2 is connected to a control console chamber 20. A first laser sensor 21 is provided at the bottom of the test chamber cover 1 and at the top of the drying and measuring chamber 22, and a second laser sensor 29 is provided at the bottom of the test chamber cover 1 and at the top of the soaking chamber 19. A first heat dissipation door 10 is connected to the first motor compartment 9, a second heat dissipation door 12 is connected to the second motor compartment 11, and a third heat dissipation door is connected to the control console chamber 20.

[0039] Working principle:

[0040] At the start of the experiment, drain port 4 is closed, and sodium sulfate solution is injected through inlet port 3. Liquid exchange channel 28 flows into the soaking chamber until the solution level in soaking chamber 19 exceeds the top of the specimen by 2 mm. Inlet port 3 is then closed, and concentration sensor 25 detects changes in sodium sulfate solution concentration. After the soaking time is reached, electric lifting device 18 lifts specimen 16 until the first slide rail in soaking chamber 19 is level with the second slide rail in drying measuring chamber 22; this is the drying stage. After the drying stage, electric slide rail device 14 is activated, and specimen 16 and specimen rack 17 move from the first slide rail to the second slide rail into drying measuring chamber 22. Heating measuring element 27 is activated, and hot gas enters drying measuring chamber 22 through gas pipe 7 to dry specimen 16. Pressurization device 24 provides power for solution exchange between storage chamber 23 and soaking chamber 19. Finally, after the drying stage is completed and the specimen has cooled, the sensor on heating measuring element 27 measures the mass of specimen 16. The second laser sensor 29 senses changes in the solution level in the soaking chamber by emitting laser light of varying length, while the first laser sensor 21 emits laser light in all directions to sense the surface peeling of the specimen 16.

[0041] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made to the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A fully automatic concrete sulfate attack simulation device, characterized in that, The device includes a first housing (6), a second housing (8), and an electric lifting device (18). The first housing (6) and the second housing (8) are connected. The first housing (6) is equipped with an immersion chamber (19) and a control room (20). The second housing (8) is equipped with a drying measurement chamber (22) and a liquid storage chamber (23), both of which are connected to a motor compartment. The drying measurement chamber (22) is located above the liquid storage chamber (23). A heating measurement element (27) is installed above the liquid storage chamber (23). The heating measurement element (27) is connected to the drying measurement chamber (22) through an air pipe (7). A pressurizing device (24) is installed at the bottom of the liquid storage chamber (23). The electric lifting device (18) is located at the bottom of the first housing (6). An electric slide rail device (14) is installed on the electric lifting device (18). A specimen rack (17) is installed on the electric slide rail device (14). A specimen (16) is installed on the specimen rack (17).

2. The fully automatic concrete sulfate attack simulation device according to claim 1, characterized in that, The electric lifting device (18) includes a first power device and a lifting device. The first power device is located at the bottom of the soaking chamber (19), and one end of the lifting device is connected to the first power device, while the other end is located at the bottom of the control room (20).

3. The fully automatic concrete sulfate attack simulation device according to claim 2, characterized in that, The drying measuring chamber (22) is connected to the first motor compartment (9), and the liquid storage chamber (23) is connected to the second motor compartment (11). The electric slide rail device (14) includes a second power device and a first slide rail and a second slide rail. The second power device is located at the bottom of the first motor compartment (9), the first slide rail is located at the top of the lifting device, and the second slide rail is located at the bottom of the drying measuring chamber (22). When the lifting device is raised, the first slide rail and the second slide rail can be aligned.

4. The fully automatic concrete sulfate attack simulation device according to claim 3, characterized in that, The second motor compartment (11) is equipped with a heating device (26) that provides power to the pressurization device (24) and the heating measurement element (27).

5. The fully automatic concrete sulfate attack simulation device according to claim 1, characterized in that, Temperature sensor (13) and humidity sensor (15) are installed on the top of both the soaking chamber (19) and the drying measurement chamber (22).

6. The fully automatic concrete sulfate attack simulation device according to claim 1, characterized in that, The liquid storage chamber (23) is provided with an inlet (3) and an outlet (4) on the outside, and a concentration sensor (25) is provided inside the liquid storage chamber (23).

7. The fully automatic concrete sulfate attack simulation device according to claim 1, characterized in that, The bottoms of the first box (6) and the second box (8) are connected by a liquid exchange channel (28).

8. The fully automatic concrete sulfate attack simulation device according to claim 1, characterized in that, A test chamber cover (1) is provided on the upper outer side of the first chamber (6) and the second chamber (8). The test chamber cover (1) is connected to a control console (2), which is connected to the control console room (20). A first laser sensor (21) is provided at the bottom of the test chamber cover (1) and at the top of the drying measurement chamber (22). A second laser sensor (29) is provided at the bottom of the test chamber cover (1) and at the top of the soaking chamber (19).

9. The fully automatic concrete sulfate attack simulation device according to claim 3, characterized in that, The first motor compartment (9) is connected to a first heat dissipation door (10), and the second motor compartment (11) is connected to a second heat dissipation door (12).

10. The fully automatic concrete sulfate attack simulation device according to claim 1, characterized in that, The control room (20) is connected to a third heat dissipation door.

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