Test device for testing adsorption of permeable road pavement structure to heavy metals

Abstract

The utility model discloses a test device for testing heavy metal adsorption of a permeable road pavement structure, which relates to the technical field of permeable roads and comprises a water storage system, a flow control system, a permeable test piece system and a liquid storage system at the bottom. The flow control system consists of three groups of aluminum meshes with holes; the permeable test piece system consists of a flow meter and a permeable test piece bin main body; and the liquid storage system comprises a rotatable liquid outlet pipe. Flexible combination or part replacement of the device is realized by setting a special connection mode between structures, and heavy metal adsorption performance tests of most permeable pavement structure layers can be met by setting the height of the supporting prismatic table; by arranging a rotary sliding connection mode and a liquid outlet pipe with a valve, sampling and subsequent analysis tests of heavy metal filtrate are facilitated, and a reference basis is provided for design, research and development of a permeable pavement structure layer.

Description

Technical Field

[0001] The utility model relates to the technical field of permeable roads, in particular to a test device for testing the adsorption of heavy metals by a permeable road pavement structure. Background Art

[0002] The threat posed by the infiltration and accumulation of heavy metal-containing rainfall runoff in permeable pavement structural layers to the groundwater circulation system cannot be ignored. However, there is little research on the adsorption mechanism of heavy metals in existing structural layers, and the evaluation of the adsorption effect of heavy metals in permeable pavement structural layers requires high test equipment, which greatly limits the application research of new materials in permeable road structural layers.

[0003] Therefore, those skilled in the art provide a test device for testing the adsorption of heavy metals by permeable road pavement structures to solve the problems raised in the above background technology. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a test device for testing the adsorption of heavy metals by permeable road pavement structures, which solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a test device for testing the adsorption of heavy metals by a permeable road pavement structure, comprising a water storage system, a flow control system, a permeable test piece system, and a liquid storage system at the bottom;

[0006] The water storage system consists of a water tank and a tank cover connected by a hinge;

[0007] The flow control system consists of three sets of perforated aluminum mesh;

[0008] The water permeable test piece system is composed of a flow meter and a water permeable test piece chamber body;

[0009] The liquid storage system comprises a rotatable liquid outlet tube.

[0010] As a further technical solution of the present invention, the water tank is threadedly connected to the flow control system, and a rubber sealing ring is further provided on the upper surface of the flow control system, and the water tank and the flow control system are sealed by the rubber sealing ring.

[0011] As a further technical solution of the present invention, three groups of perforated aluminum meshes are provided inside the flow control system, and each group of perforated aluminum meshes is provided with circular holes of different apertures.

[0012] As a further technical solution of the present invention, supporting prisms are symmetrically provided on the inner side of the water permeable test piece bin body, and positioning nuts are installed on the outer side of the supporting prisms.

[0013] As a further technical solution of the present invention, a rotary sliding connection buckle is further provided on the inner side of the water permeable test piece bin body, and the liquid storage system is installed below the water permeable test piece system through the rotary sliding connection buckle.

[0014] As a further technical solution of the present invention, the liquid outlet pipe is installed on the outside of the liquid storage system, and a regulating valve is provided on the upper surface of the liquid outlet pipe.

[0015] As a further technical solution of the present invention, three groups of water-permeable structure test pieces are symmetrically arranged inside the water-permeable test piece bin body, and a leakage switch is arranged outside the flow control system.

[0016] The utility model provides a test device for testing the adsorption of heavy metals by permeable road pavement structures, which has the following beneficial effects compared with the existing technology:

[0017] The present invention designs a test device for testing the adsorption of heavy metals by permeable road pavement structures. By setting a special connection method between structures, the device can be flexibly combined or replaced with other components. By setting the height of the supporting prism, it can meet the heavy metal adsorption performance test of most permeable pavement structure layers. By setting a rotating sliding connection method and a liquid outlet pipe with a valve, the sampling of heavy metal filtrate and subsequent analysis tests are convenient, and the device has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a test device for testing the adsorption of heavy metals by permeable road pavement structures;

[0019] Figure 2 A top view of a perforated aluminum mesh in a test device for testing the adsorption of heavy metals by permeable road pavement structures;

[0020] Figure 3 This is a schematic diagram of the structure of a permeable structure specimen in a test device for testing the adsorption of heavy metals by permeable road pavement structures;

[0021] Figure 4 This is a schematic diagram of the structure of a leakage switch in a test device for testing the adsorption of heavy metals by permeable road pavement structures.

[0022] In the figure: 1. Water storage system; 11. Water tank; 12. Tank cover; 2. Flow control system; 3. Perforated aluminum mesh; 4. Permeable test piece system; 5. Flow meter; 6. Permeable test piece bin body; 7. Liquid storage system; 8. Liquid outlet pipe; 9. Support prism; 10. Rotary sliding connection buckle; 21. Rubber sealing ring; 13. Positioning nut; 14. Permeable structure test piece; 15. Leakage switch; 16. Regulating valve. DETAILED DESCRIPTION

[0023] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments, all other embodiments obtained by the ordinary skilled in the art without creative labor based on the embodiments in the utility model belong to the scope of the utility model protection.

[0024] Embodiment one

[0025] The technical scheme of a kind of test water-permeable road pavement structure adsorption test device for heavy metal: including water storage system 1, flow control system 2, water-permeable test piece system 4 and the bottom liquid storage system 7;

[0026] Water storage system 1 is composed of water tank 11 and cover 12 connected by hinge;

[0027] Flow control system 2 is composed of three groups of hole aluminum mesh 3;

[0028] Water-permeable test piece system 4 is composed of flowmeter 5 and water-permeable test piece warehouse main body 6;

[0029] Liquid storage system 7 includes rotatable liquid outlet pipe 8.

[0030] The flow control effect of heavy metal solution is realized by water storage system 1 and flow control system 2, water-permeable structure test piece 14 realizes the adsorption and filtration of heavy metal, and the filtrate is quickly collected in the test through the separation type filtrate collection system.

[0031] In this embodiment, water tank 11 is threadedly connected with flow control system 2, the upper surface of flow control system 2 is further provided with rubber sealing ring 21, water tank 11 is sealed with flow control system 2 through rubber sealing ring 21, and the sealing treatment is carried out through multiple sealing rings to avoid leakage of heavy metal-containing solution.

[0032] In this embodiment, three groups of hole aluminum mesh 3 are arranged in the inside of flow control system 2, and different diameter circular holes are formed in each group of hole aluminum mesh 3, and the liquid flow control is realized by three groups of hole aluminum mesh 3 with different diameters.

[0033] In this embodiment, the inside of water-permeable test piece warehouse main body 6 is further provided with symmetrically arranged support prisms 9, the outside of support prisms 9 is provided with positioning nuts 13, and the height of four support prisms 9 is controlled through positioning nuts 13.

[0034] In this embodiment, the inside of water-permeable test piece warehouse main body 6 is further provided with rotary sliding connection buckles 10, liquid storage system 7 is installed below water-permeable test piece system 4 through rotary sliding connection buckles 10, and the sliding connection between the bottom of water-permeable test piece warehouse main body 6 and liquid storage system 7 is realized through rotary sliding connection buckles 10.

[0035] Specifically, in this embodiment, the liquid outlet pipe 8 is installed on the outside of the liquid storage system 7, and a regulating valve 16 is provided on the upper surface of the liquid outlet pipe 8 to control the liquid outlet flow rate.

[0036] Specifically, in this embodiment, three groups of water-permeable structure test pieces 14 are symmetrically arranged inside the water-permeable test piece bin body 6 , and the adsorption and filtration of heavy metals are achieved through the structural layers of the water-permeable structure test pieces 14 .

[0037] Example 2 is a test device for testing the heavy metal adsorption capacity of a permeable road pavement structure. Unlike Example 1, in Example 2, a leakage switch 15 is provided on the outside of the flow control system 2, and the height of the support rib 9 is appropriately adjusted by the positioning nut 13 according to the size of the permeable test piece.

[0038] Taking Example 2 as an example, during use, an appropriate amount of prepared heavy metal solution is added according to the height of the scale in the water tank 11, and the flow rate of solution leakage is controlled by controlling the pore size and spacing of the perforated aluminum mesh 3. The prepared permeable structure specimen 14 is placed vertically in the permeable specimen bin body 6, and a layer of supporting glass grid is placed at the bottom of the specimen. A small amount of wax is added to the specimen and the cylinder wall for sealing. The height of the annular support prism 9 is fixed by adjusting the positioning nut 13 according to the size of different specimens, and the leakage switch 15 in the flow control system 2 is turned on to start the permeability test. The filtrate is stored through the liquid storage system 7, and the filtrate is sampled and analyzed through the liquid outlet pipe 8.

[0039] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A test device for testing the adsorption of heavy metals by permeable road pavement structures, characterized in that: It includes a water storage system (1), a flow control system (2), a water permeable test piece system (4), and a liquid storage system (7) at the bottom; The water storage system (1) is composed of a water tank (11) and a tank cover (12) connected via a hinge; The flow control system (2) is composed of three groups of perforated aluminum meshes (3); The water permeable test piece system (4) is composed of a flow meter (5) and a water permeable test piece chamber body (6); The liquid storage system (7) comprises a rotatable liquid outlet pipe (8).

2. A test device for testing the adsorption of heavy metals by permeable road pavement structures according to claim 1, characterized in that: The water tank (11) is threadedly connected to the flow control system (2), and a rubber sealing ring (21) is further provided on the upper surface of the flow control system (2). The water tank (11) and the flow control system (2) are sealed via the rubber sealing ring (21).

3. The device for testing the adsorption of heavy metals by permeable road pavement structure according to claim 1, characterized in that: Three groups of the perforated aluminum meshes (3) are arranged inside the flow control system (2), and each group of the perforated aluminum meshes (3) is provided with circular holes of different apertures.

4. The device for testing the adsorption of heavy metals by permeable road pavement structures according to claim 1, characterized in that: A supporting prism (9) is symmetrically provided on the inner side of the water permeable test piece bin body (6), and a positioning nut (13) is installed on the outer side of the supporting prism (9).

5. The device for testing the adsorption of heavy metals by permeable road pavement structures according to claim 1, characterized in that: A rotary sliding connection buckle (10) is also provided inside the water permeable test piece chamber body (6), and the liquid storage system (7) is installed below the water permeable test piece system (4) via the rotary sliding connection buckle (10).

6. The device for testing the adsorption of heavy metals by permeable road pavement structures according to claim 1, characterized in that: The liquid outlet pipe (8) is installed outside the liquid storage system (7), and a regulating valve (16) is provided on the upper surface of the liquid outlet pipe (8).

7. The device for testing the adsorption of heavy metals by permeable road pavement structures according to claim 1, characterized in that: Three groups of water-permeable structure test pieces (14) are symmetrically arranged inside the water-permeable test piece bin body (6), and a leakage switch (15) is arranged outside the flow control system (2).

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