An experimental device for testing the runoff purification performance of road surface materials

Abstract

The utility model discloses an experimental device for testing the purification runoff performance of road surface material, including water storage container, electronic stirrer, test piece container and water sample collector, and the output of electronic stirrer extends to the inside of water storage container, and the bottom of one side of water storage container is provided with first stainless steel hose, and the water inlet valve and water inlet valve flowmeter are arranged on first stainless steel hose respectively, the top of test piece container is provided with container upper connector, the utility model discloses the above -mentioned experimental device can add the rainwater or self -made solution to water storage container, and the flow rate of solution is adjusted by controlling water inlet valve and according to the numerical value shown by flowmeter, then the solution is evenly sprayed on road surface material test piece and is fully filtered through adjustable shower nozzle, and the filtered solution is finally collected in water sample collector, and the collected water sample can be used for subsequent different pollutant characteristic test to evaluate the purification effect of road surface material on rainwater runoff.

Description

Technical Field

[0001] This utility model relates to the field of road construction materials and engineering technology, specifically to an experimental device for testing the runoff purification performance of road surface materials. Background Technology

[0002] While urbanization and road traffic have driven rapid socio-economic development, they have also brought about some environmental pollution problems. Rainwater runoff from impermeable pavements is one of the most prominent urban environmental pollution issues due to its high concentration and heavy load of pollutants. In contrast, permeable asphalt pavement structures, with their larger porosity and more developed internal interconnected pores, can reduce surface water accumulation, alleviate urban flooding, and moderate peak runoff. Adding adsorbent materials to the pavement structure can improve runoff water quality and purify pollutants in rainwater runoff from the road surface.

[0003] Currently, there is limited research on purification devices for permeable asphalt pavements. Most experimental devices are self-assembled and lack uniformity, which leads to problems in comparing experimental results.

[0004] Based on this, the present invention provides an experimental device for testing the runoff purification performance of road materials. Utility Model Content

[0005] The purpose of this invention is to provide an experimental device for testing the runoff purification performance of road materials, in order to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an experimental device for testing the runoff purification performance of road materials, comprising a water storage container, an electronic stirrer, a specimen container and a water sample collector, wherein the output end of the electronic stirrer extends into the interior of the water storage container, and a first stainless steel flexible hose is provided at the bottom of one side of the water storage container, and an inlet valve and an inlet valve flow meter are respectively provided on the first stainless steel flexible hose.

[0007] The top of the specimen container is provided with an upper connector, and the first stainless steel hose is connected to the upper connector. An adjustable nozzle is provided at the top of the specimen container. The interior of the specimen container is provided with a water-proof material and a wire mesh bottom plate. The bottom of the specimen container is provided with a lower connector, and a second stainless steel hose is connected inside the lower connector.

[0008] The second stainless steel hose is equipped with a water outlet valve and a water outlet valve flow meter, and the specimen container is connected to the water sample collector through the second stainless steel hose.

[0009] Preferably, the waterproof material is located above the wire mesh base plate.

[0010] Preferably, the top of the water storage container is open, and the electronic stirrer is mounted on the base.

[0011] Preferably, the waterproof material is a plastic film.

[0012] Preferably, the connector on the container is threadedly connected to the test specimen container and the first stainless steel flexible hose, respectively.

[0013] Preferably, the lower connector of the container is threadedly connected to the test specimen container and the second stainless steel hose.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The experimental device for testing the runoff purification performance of road materials can collect rainwater or a self-made solution and add it to a water storage container. By controlling the water inlet valve and adjusting the flow rate of the solution according to the value displayed by the flow meter, the solution is then evenly sprayed onto the specimen through an adjustable nozzle for thorough filtration. The filtered solution is finally collected in a water sample collector. The collected water sample can be used for subsequent tests on the characteristics of different pollutants to evaluate the purification effect of road materials on rainwater runoff. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the specimen container structure of this utility model.

[0017] In the diagram: 1. Water storage container; 2. Electronic stirrer; 3. First stainless steel hose; 4. Inlet valve; 5. Inlet valve flow meter; 6. Upper connector of the container; 7. Adjustable nozzle; 8. Specimen container; 9. Waterproof material; 10. Wire mesh base plate; 11. Lower connector of the container; 12. Outlet valve; 13. Outlet valve flow meter; 14. Water sample collector; 15. Second stainless steel hose. Detailed Implementation

[0018] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-2The present invention provides an embodiment of an experimental device for testing the runoff purification performance of road materials, comprising a water storage container 1, an electronic stirrer 2, a specimen container 8, and a water sample collector 14. The output end of the electronic stirrer 2 extends into the interior of the water storage container 1. The top of the water storage container 1 is open. The electronic stirrer 2 is mounted on a base. A first stainless steel hose 3 is provided at the bottom of one side of the water storage container 1. An inlet valve 4 and an inlet valve flow meter 5 are respectively provided on the first stainless steel hose 3. The inner diameter of the specimen container 8 can be selected as 105mm or 155mm.

[0020] The top of the specimen container 8 is provided with a container upper connector 6, and the first stainless steel hose 3 is connected to the container upper connector 6. The container upper connector 6 is threadedly connected to the specimen container 8 and the first stainless steel hose 3 respectively. An adjustable nozzle 7 is provided at the top inside the specimen container 8. The interior of the specimen container 8 is provided with a water-proof material 9 and a wire mesh base plate 10. The water-proof material 9 is located above the wire mesh base plate 10 and is a plastic film. The bottom of the specimen container 8 is provided with a container lower connector 11. The interior of the container lower connector 11 is connected to a second stainless steel hose 15. The container lower connector 11 is threadedly connected to the specimen container 8 and the second stainless steel hose 15 respectively.

[0021] The second stainless steel hose 15 is equipped with a water outlet valve 12 and a water outlet valve flow meter 13. The specimen container 8 is connected to the water sample collector 14 through the second stainless steel hose 15.

[0022] Example 1

[0023] The laboratory used a rotary compactor to form zeolite-modified asphalt mixtures with specimens measuring 60 mm in height and 150 mm in diameter, with a porosity of 18%. An indoor road surface runoff simulation solution was prepared and poured into a water storage container 1. A specimen container 8 with an inner diameter of 155 mm was selected. The formed specimen was placed on the wire mesh base plate 10 of the specimen container, and waterproof material 9 was placed around the specimen to prevent solution leakage. The specimen was ensured to be placed horizontally. Then, the inlet valve 4 was opened, and the flow rate was adjusted by the inlet valve flow meter 5. The solution was evenly sprayed onto the specimen through an adjustable nozzle 7. The outlet valve 12 was opened, the solution flow rate was observed, and the size of the inlet valve 4 was adjusted to ensure the solution flowed evenly into the water sample collector 14.

[0024] Example 2

[0025] 20L of rainwater collected from a certain location was used to form activated carbon modified asphalt mixture using a Marshall compactor. The specimen dimensions were 63.5mm in height and 101.6mm in diameter, with a porosity of 15%.

[0026] Select a specimen container 8 with an inner diameter of 105 mm, place the formed specimen on the wire mesh base plate 10 of the specimen container 8, place water-proof material 9 around the specimen to prevent solution leakage, ensure that the specimen is placed horizontally, then open the water inlet valve 4 and observe the water inlet valve flow meter 5 to adjust the water flow rate. The solution is evenly sprayed onto the specimen through the adjustable nozzle. Open the water outlet valve, observe the solution rate, and adjust the size of the water inlet valve 4 to make the solution flow evenly into the water sample collector 14.

[0027] Example 3

[0028] Core samples were randomly taken from the asphalt pavement. The core sample dimensions are shown in Table 1. Based on the core sample diameter, different inner diameter specimen containers (8) were selected: core samples #1, #2, and #5 used specimen containers with an inner diameter of 105 mm, while core samples #3 and #4 used specimen containers with an inner diameter of 155 mm. This device can be used to study the runoff purification performance of specimens of various sizes.

[0029] Table 1 Core Sample Dimensions

[0030] Diameter / mm 100.2 101.5 150.6 151.3 101.6 Height / mm 41.2 43.9 39.1 46.2 48.4

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. An experimental set-up for testing the runoff purification performance of a road surface material, comprising a water reservoir (1), an electric stirrer (2), a test specimen container (8) and a water sample collector (14), characterized in that: The output end of the electronic stirrer (2) extends into the interior of the water storage container (1). A first stainless steel hose (3) is provided at the bottom of one side of the water storage container (1). A water inlet valve (4) and a water inlet valve flow meter (5) are respectively provided on the first stainless steel hose (3). The top of the specimen container (8) is provided with a container upper connector (6), the first stainless steel hose (3) is connected to the container upper connector (6), the top of the specimen container (8) is provided with an adjustable nozzle (7), the interior of the specimen container (8) is provided with a water-proof material (9) and a wire mesh bottom plate (10), the bottom of the specimen container (8) is provided with a container lower connector (11), and the interior of the container lower connector (11) is connected with a second stainless steel hose (15). The second stainless steel hose (15) is equipped with a water outlet valve (12) and a water outlet valve flow meter (13). The test specimen container (8) is connected to the water sample collector (14) through the second stainless steel hose (15).

2. The experimental device for testing the runoff purification performance of a road surface material according to claim 1, characterized in that: The waterproof material (9) is located above the wire mesh base plate (10).

3. The experimental apparatus for testing the runoff purification performance of road materials according to claim 1, characterized in that: The water storage container (1) has an open top, and the electronic stirrer (2) is mounted on the base.

4. The experimental device for testing the runoff purification performance of pavement materials according to claim 1, characterized in that: The waterproof material (9) is a plastic film.

5. The experimental device for testing the runoff purification performance of a road surface material according to claim 1, characterized in that: The connector (6) on the container is threadedly connected to the test specimen container (8) and the first stainless steel hose (3) respectively.

6. The experimental device for testing the runoff purification performance of a road surface material according to claim 1, characterized in that: The lower connector (11) of the container is threadedly connected to the test specimen container (8) and the second stainless steel hose (15).

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