Water vapor diffusion device for testing asphalt mixture

Abstract

The utility model relates to the technical field of water vapor diffusion devices, and discloses a water vapor diffusion device for asphalt mixture testing, which comprises a testing box body, a control equipment cavity and a water vapor diffusion cavity are arranged in the testing box body, and a main controller and a chemical power supply are arranged in the control equipment cavity. Interaction equipment electrically connected with the main controller is arranged at the upper part of the test box body, the water vapor diffusion cavity penetrates through the opposite side surfaces of the test box body, a sliding movable bottom plate is arranged at the bottom in the water vapor diffusion cavity, and the upper surface of the movable bottom plate is fixedly connected with two symmetrical side surface sealing plates and a middle partition plate located between the two side surface sealing plates. According to the asphalt mixture moisture diffusion testing device disclosed by the utility model, the two groups of evaporation vessels are arranged, so that moisture diffusion testing can be circularly carried out on the asphalt mixture, the asphalt mixture is tested while the tested evaporation vessels are cleaned and the asphalt mixture to be tested is added, and the moisture diffusion testing efficiency of the asphalt mixture is further improved.

Description

A water vapor diffusion device for asphalt mixture testing Technical Field

[0001] This utility model relates to the technical field of water vapor diffusion devices, specifically a water vapor diffusion device for testing asphalt mixtures. Background Technology

[0002] The water vapor diffusion device used for testing asphalt mixtures is designed and used to accurately measure the water vapor diffusion coefficient inside the asphalt mixture, which is crucial for assessing the water stability of asphalt pavements.

[0003] A search revealed a patent, CN211602784U, which discloses a device for detecting the solid content of emulsified asphalt. This invention includes a housing with an evaporation chamber at one end. A top cover is mounted on the upper part of the housing, and an inlet pipe and a fan are mounted on the top cover. A ring light is mounted on the middle of the evaporation chamber, and a gravity sensor is mounted on the bottom of the evaporation chamber. A ring frame is mounted above the gravity sensor, and an evaporation dish is fixed inside the ring frame. Ventilation holes communicating with the bottom of the evaporation chamber are opened on two opposite sides of the housing. A controller, processor, and power supply are connected sequentially from top to bottom inside the other end of the housing. The processor is connected to the gravity sensor, and the power supply is connected to the ring light. Handles are rotatably fitted at both ends of the housing. This invention facilitates handling by providing handles, and the ventilation holes and fan work together to accelerate the diffusion of water vapor and excess heat within the evaporation chamber. It is simple to operate and consumes little time.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] The aforementioned comparative documents describe a method where asphalt mixture is introduced into an evaporating dish and a ring lamp is used to conduct a water vapor diffusion test. However, in reality, after each water vapor diffusion test of asphalt mixture, the evaporating dish needs to be cleaned to avoid affecting the weight data when testing the next batch of asphalt mixture. When multiple batches of asphalt mixture need to be tested, the need to clean the evaporating dish each time delays the testing time, thereby reducing the efficiency of water vapor diffusion testing of asphalt mixture. Therefore, there is an urgent need in the art to improve the water vapor diffusion device used for asphalt mixture testing, thereby overcoming the shortcomings of the prior art. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a water vapor diffusion device for testing asphalt mixtures, thereby improving the efficiency of water diffusion testing of asphalt mixtures.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a water vapor diffusion device for testing asphalt mixtures, comprising a test chamber, wherein the test chamber is provided with a control device cavity and a water vapor diffusion cavity, the control device cavity is provided with a main controller and a chemical power source, the upper part of the test chamber is provided with an interactive device electrically connected to the main controller, the water vapor diffusion cavity extends through opposite sides of the test chamber, the bottom of the water vapor diffusion cavity is provided with a sliding movable base plate, the upper surface of the movable base plate is fixedly connected with two symmetrical side sealing plates and a central partition plate located between the two side sealing plates, the upper surface of the movable base plate is provided with two symmetrical weighing devices for weighing, an evaporator for evaporation is provided above the weighing devices, an evaporation device for evaporation and adapted to the evaporator is provided between the side sealing plates and the central partition plate, a partition is fixedly connected between the side sealing plates and the central partition plate, a flow meter adapted to the evaporator is fixedly installed on the upper surface of the partition plate, a funnel is provided above the flow meter, and a drive unit for driving the movable base plate to move is provided on one side of the test chamber.

[0008] Preferably, the drive unit includes a drive motor fixedly installed on one side of the test chamber, a first sliding groove fixedly installed on the lower surface of the movable base plate, a sliding strip adapted to the first sliding groove being opened at the bottom of the water vapor diffusion chamber, a sliding block being fixedly installed on the lower side of the sliding strip, a second sliding groove adapted to the sliding block being opened at the bottom of the first sliding groove, and a lead screw with one end fixedly installed to the output end of the drive motor being rotatably connected in the second sliding groove, the lead screw passing through the sliding block and being threadedly connected to it.

[0009] Preferably, a fan extending into the control equipment cavity is fixedly installed on the inner wall of the water vapor diffusion cavity, and through ventilation holes are opened on opposite sides of the test box.

[0010] According to the water vapor diffusion device for testing asphalt mixtures as claimed in the claim, the upper surface of the movable base plate is provided with a placement groove adapted to the weighing equipment.

[0011] Preferably, the upper part of the weighing device is provided with a support member for supporting the evaporator. The support member includes two support rings that are respectively adapted to the placement slot and the evaporator, and a plurality of support rods are fixedly connected between the two support rings.

[0012] Preferably, a fixing plate is fixedly installed on the opposing sides of the side sealing plate and the central partition plate, and an elastic clamping frame adapted to the evaporation device and having elasticity is fixedly installed on the fixing plate.

[0013] Preferably, a number of moving wheels are fixedly installed on the lower surface of the movable base plate, and a moving groove adapted to the moving wheels is opened at the bottom of the water vapor diffusion cavity.

[0014] To address the shortcomings of existing technologies, this invention provides a water vapor diffusion device for asphalt mixture testing, overcoming the deficiencies of existing technologies. The beneficial effects of this invention are as follows:

[0015] 1. In this utility model, by setting two sets of evaporators, the moisture diffusion test of asphalt mixture can be carried out in a cyclical manner. While testing the asphalt mixture, the evaporators that have been tested are cleaned and the asphalt mixture to be tested is added, thereby improving the efficiency of moisture diffusion test of asphalt mixture.

[0016] 2. In this utility model, by setting the fan and the ventilation holes on both sides of the test box, the air in the control equipment cavity and the water vapor diffusion cavity is blown out to the ventilation hole on the side closer to the water vapor diffusion cavity, thereby improving the water vapor diffusion effect and also providing heat dissipation for the control equipment cavity.

[0017] 3. In this utility model, the weighing equipment and the support ring can be positioned by the placement groove, and the evaporator is fixed on the support ring, which makes it easy to remove and clean the evaporator.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 is a structural schematic diagram of the present invention from another perspective;

[0022] Figure 3 is a partial cross-sectional structural schematic diagram of the test chamber in this utility model;

[0023] Figure 4 is a partial cross-sectional view of the test chamber in this utility model from a bottom angle.

[0024] Figure 5 is a schematic diagram of the structure of the movable base plate in this utility model;

[0025] Figure 6 is a schematic diagram of the evaporator in this utility model;

[0026] Figure 7 is a magnified structural diagram of point A in Figure 3;

[0027] Figure 8 is a magnified structural diagram of point B in Figure 4.

[0028] In the diagram: 1. Test chamber; 2. Control equipment chamber; 3. Water vapor diffusion chamber; 4. Interactive device; 5. Main controller; 6. Chemical power source; 7. Movable base plate; 8. Side sealing plate; 9. Central partition plate; 10. Weighing device; 11. Evaporator; 12. Evaporation device; 13. Partition plate; 14. Flow meter; 15. Funnel; 16. Drive unit; 17. Drive motor; 18. Sliding bar; 19. First sliding groove; 20. Sliding block; 21. Second sliding groove; 22. Lead screw; 23. Fan; 24. Vent hole; 25. Placement groove; 26. Support ring; 27. Support rod; 28. Fixing plate; 29. ​​Elastic clamping frame; 30. Moving wheel; 31. Moving groove. Detailed Implementation

[0029] 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.

[0030] Please refer to Figures 1-8. A water vapor diffusion device for testing asphalt mixtures includes a test chamber 1. The test chamber 1 contains a control equipment chamber 2 and a water vapor diffusion chamber 3. The control equipment chamber 2 contains a main controller 5 and a chemical power source 6. An interactive device 4 electrically connected to the main controller 5 is located on the upper part of the test chamber 1. The water vapor diffusion chamber 3 extends through opposite sides of the test chamber 1. A sliding movable base plate 7 is located at the bottom of the water vapor diffusion chamber 3. Two symmetrical side sealing plates 8 and a central partition plate 9 located between the two side sealing plates 8 are fixedly connected to the upper surface of the movable base plate 7. Two symmetrical weighing devices 10 are located on the upper surface of the movable base plate 7. An evaporator 11 for evaporation is located above the weighing devices 10. An evaporation device 12 adapted to the evaporator 11 is located between the side sealing plates 8 and the central partition plate 9. A partition plate 13 is fixedly connected between the side sealing plates 8 and the central partition plate 9. A flow meter 14 adapted to the evaporator 11 is fixedly installed on the upper surface of the partition 13. A funnel 15 is provided on the upper part of the flow meter 14. A drive unit 16 for driving the moving base plate 7 is provided on one side of the test chamber 1. The drive unit 16 includes a drive motor 17 fixedly installed on one side of the test chamber 1. A first sliding groove 19 is fixedly installed on the lower surface of the moving base plate 7. A sliding strip 18 adapted to the first sliding groove 19 is opened at the bottom of the water vapor diffusion chamber 3. A sliding block 20 is fixedly installed on the lower side of the sliding strip 18. A second sliding groove 21 adapted to the sliding block 20 is opened at the bottom of the first sliding groove 19. A lead screw 22 with one end fixedly installed to the output end of the drive motor 17 is rotatably connected in the second sliding groove 21. The lead screw 22 passes through the sliding block 20 and is threadedly connected to it. A fan 23 extending into the control equipment chamber 2 is fixedly installed on the inner side wall of the water vapor diffusion chamber 3. A through vent hole 24 is opened on the opposite side of the test chamber 1.

[0031] Specifically, when testing the asphalt mixture, the main controller 5 starts the drive motor 17 via the interactive device 4. The output of the drive motor 17 drives the lead screw 22 to rotate. When the lead screw 22 rotates, it drives the sliding block 20 to move within the second sliding groove 21. The sliding block 20 drives the sliding strip 18 to move within the first sliding groove 19, moving half of the moving base plate 7 out of the water vapor diffusion chamber 3. The asphalt mixture is then poured in through the funnel 15. When the asphalt mixture passes through the flow meter 14, the flow meter 14 records the mass flow rate of the asphalt mixture. Subsequently, the asphalt mixture flows into the evaporator 11. The drive motor 17 moves the moving base plate 7 back into the water vapor diffusion chamber 3, with the evaporator 11 containing the asphalt mixture located in the middle of the water vapor diffusion chamber 3. At this time, another asphalt mixture is located outside the other side of the test chamber 1. The evaporation device 12 is then started to evaporate the asphalt mixture in the evaporator 11. The asphalt mixture is subjected to a water diffusion test. Simultaneously, a blower 23 is activated, expelling the water vapor through vents 24. Vents 24 are located on both sides of the test chamber 1 to cool the temperature inside the control chamber 2. The mass of the evaporated mixture is recorded using a weighing device 10. Meanwhile, another external evaporator 11 is cleaned. When the water diffusion test of the asphalt mixture is nearing completion, the asphalt mixture to be tested is added back into the other external evaporator 11. After the water diffusion test is completed, the drive motor 17 is restarted to move part of the moving base plate 7 out of the water diffusion chamber 3. At this time, the other evaporator 11, filled with untested asphalt mixture, moves back into the water diffusion chamber 3 for another test. By setting up two sets of evaporators 11, the water diffusion test of the asphalt mixture can be performed cyclically, thereby improving the efficiency of the water diffusion test.

[0032] As a technical optimization of this utility model, the upper surface of the movable base plate 7 is provided with a placement groove 25 adapted to the weighing device 10, and the upper part of the weighing device 10 is provided with a support member for supporting the evaporator 11. The support member includes two support rings 26 adapted to the placement groove 25 and the evaporator 11 respectively, and a number of support rods 27 are fixedly connected between the two support rings 26.

[0033] Specifically, the placement groove 25 is used to limit the weighing device 10 and a support ring 26 to prevent the weighing device 10 and the support ring 26 from shifting. The evaporator 11 is placed in the upper support ring 26, and the evaporator 11 can be removed for easy cleaning.

[0034] As a technical optimization of this utility model, a fixing plate 28 is fixedly installed on the opposite sides of the side sealing plate 8 and the middle partition plate 9. An elastic clamping frame 29 that is compatible with the evaporation device 12 and has elasticity is fixedly installed on the fixing plate 28. Several moving wheels 30 are fixedly installed on the lower surface of the movable base plate 7. A moving groove 31 that is compatible with the moving wheels 30 is opened at the bottom of the water vapor diffusion chamber 3.

[0035] Specifically, the evaporator 12 is clamped and fixed by being snapped onto two elastic clamping frames 29, which facilitates the installation or replacement of the evaporator 12. When the movable base plate 7 moves, the movable wheel 30 moves within the movable groove 31, reducing the coefficient of friction experienced by the movable base plate 7 during movement.

[0036] All of the electrical products mentioned above can be purchased from the market. They are mature technologies and have been fully disclosed, so they will not be repeated in the instruction manual. All of the electrical products mentioned above are equipped with power cords, and they are electrically connected to the main controller 5 and the chemical power source 6 through the power cords. The main controller 5 can be a conventional known device such as a computer that plays a control role.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water vapor diffusion device for testing asphalt mixtures, comprising a test chamber (1), characterized in that, The test chamber (1) is equipped with a control device cavity (2) and a water vapor diffusion cavity (3). The control device cavity (2) is equipped with a main controller (5) and a chemical power source (6). The upper part of the test chamber (1) is equipped with an interactive device (4) electrically connected to the main controller (5). The water vapor diffusion cavity (3) extends through the opposite sides of the test chamber (1). The bottom of the water vapor diffusion cavity (3) is equipped with a sliding movable base plate (7). The upper surface of the movable base plate (7) is fixedly connected with two symmetrical side sealing plates (8) and a central partition plate (9) located between the two side sealing plates (8). The upper surface of the movable base plate (7) is equipped with two... A weighing device (10) for weighing is provided above the weighing device (10) for evaporation. An evaporation device (12) for evaporation and adapted to the evaporation device (11) is provided between the side sealing plate (8) and the middle partition plate (9). A partition plate (13) is fixedly connected between the side sealing plate (8) and the middle partition plate (9). A flow meter (14) adapted to the evaporation device (11) is fixedly installed on the upper surface of the partition plate (13). A funnel (15) is provided on the upper part of the flow meter (14). A drive unit (16) for driving the moving base plate (7) to move is provided on one side of the test chamber (1).

2. A water vapor diffusion device for testing asphalt mixtures according to claim 1, characterized in that, The drive unit (16) includes a drive motor (17) fixedly installed on one side of the test chamber (1). A first sliding groove (19) is fixedly installed on the lower surface of the movable base plate (7). A sliding strip (18) adapted to the first sliding groove (19) is opened at the bottom of the water vapor diffusion chamber (3). A sliding block (20) is fixedly installed on the lower side of the sliding strip (18). A second sliding groove (21) adapted to the sliding block (20) is opened at the bottom of the first sliding groove (19). A lead screw (22) with one end fixedly installed to the output end of the drive motor (17) is rotatably connected in the second sliding groove (21). The lead screw (22) passes through the sliding block (20) and is threadedly connected to it.

3. A water vapor diffusion device for testing asphalt mixtures according to claim 1, characterized in that, A fan (23) extending into the control equipment cavity (2) is fixedly installed on the inner wall of the water vapor diffusion cavity (3), and a through-hole (24) is opened on the opposite sides of the test box (1).

4. A water vapor diffusion device for testing asphalt mixtures according to claim 1, characterized in that, The upper surface of the movable base plate (7) is provided with a placement groove (25) adapted to the weighing equipment (10).

5. A water vapor diffusion device for testing asphalt mixtures according to claim 4, characterized in that, The weighing device (10) is provided with a support member on the upper part for supporting the evaporator (11). The support member includes two support rings (26) that are adapted to the placement groove (25) and the evaporator (11) respectively. A number of support rods (27) are fixedly connected between the two support rings (26).

6. A water vapor diffusion device for testing asphalt mixtures according to claim 1, characterized in that, The side sealing plate (8) and the middle partition plate (9) are both fixedly installed with fixing plates (28) on opposite sides. The fixing plates (28) are fixedly installed with elastic clamping brackets (29) that are compatible with the evaporation device (12) and have elasticity.

7. A water vapor diffusion device for testing asphalt mixtures according to claim 1, characterized in that, Several moving wheels (30) are fixedly installed on the lower surface of the movable base plate (7), and a moving groove (31) adapted to the moving wheels (30) is opened at the bottom of the water vapor diffusion cavity (3).

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