A portable device for measuring permeability parameters of a barrier layer

By designing a portable permeability parameter measuring device for the impermeable layer, which employs a transparent measuring tank, a glue injection chamber, and an evaporation measurement tank, the problems of poor portability and water evaporation interference in existing devices are solved, enabling rapid and accurate measurement of permeability parameters.

CN224471500UActive Publication Date: 2026-07-07SICHUAN ACAD OF ENVIRONMENTAL SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ACAD OF ENVIRONMENTAL SCI
Filing Date
2025-06-16
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing devices for measuring the permeability parameters of geomembranes are complex in structure, poor in portability, difficult to measure quickly in complex environments, and fail to effectively eliminate the interference of water evaporation. They are also difficult to adapt to geomembranes with special shapes and are highly complex to operate.

Method used

A portable device was designed, comprising a transparent measuring vessel, a glue-filling chamber, and an evaporation measurement vessel. Water filling is controlled by an electric valve. The glue-filling chamber features a double-layered circular structure and an outer herringbone-shaped bevel. Transparent scale lines ensure both airtightness and data observation, making it easy to carry and operate.

Benefits of technology

It improves the accuracy and convenience of permeability parameter measurement, reduces measurement difficulty and cost, adapts to different field environments, provides comprehensive data evaluation, and ensures the accuracy of measurement results.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a portable device for measuring the permeability parameters of a geomembrane. It includes a measuring tank with two symmetrically connected support pipes at the top. Each support pipe has a water tank fixedly connected to its top. The bottoms of both water tanks are connected to the measuring tank via inlet pipes. One side of the top of each water tank is connected via an inlet pipe, with an inlet located in the middle of the inlet pipe. A glue injection chamber is located on the outer side of the measuring tank. This utility model, through the connection between the evaporation measuring tank and the measuring tank, can simultaneously and accurately measure the evaporation of water during measurement, providing richer data dimensions for a comprehensive evaluation of the geomembrane performance. Furthermore, the glue injection chamber, measuring tank, and evaporation measuring tank are all made of transparent material and have graduations, allowing operators to clearly and intuitively observe the amount of sealant injected and the changes in water level within the measuring tank and evaporation measuring tank, quickly obtaining accurate data and providing a more scientific and accurate basis for a deeper and more comprehensive understanding of the geomembrane's permeability performance.
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Description

Technical Field

[0001] This utility model relates to the technical field of seepage barrier layer measuring devices, and more specifically to a portable seepage barrier layer permeability parameter measuring device. Background Technology

[0002] In numerous fields such as environmental protection, water conservancy projects, and civil engineering, the quality and performance of geotextiles are crucial. Geotextiles effectively prevent the infiltration of liquids (such as water and chemical solutions), thereby protecting soil, groundwater, and the surrounding environment from pollution and ensuring the safe and stable operation of various engineering facilities. Accurately measuring the permeability parameters of geotextiles is a key step in evaluating their seepage prevention performance and ensuring they meet engineering requirements.

[0003] Traditional methods and devices for measuring the permeability parameters of impermeable layers often have many limitations. Some measuring devices are complex in structure and bulky, resulting in poor portability and making it difficult to conduct measurements quickly and flexibly in complex field environments. In some field engineering sites, due to terrain limitations or a lack of suitable sites, large measuring equipment cannot be transported and installed smoothly, thus affecting the timely commencement of measurement work.

[0004] When measuring the permeability parameters of the impermeable layer, the amount of water evaporation may interfere with the measurement of the actual permeability, and few existing measuring devices are designed to effectively take into account and eliminate this interference factor.

[0005] Furthermore, for some specially shaped or structurally unique geomembranes, existing measuring devices struggle to achieve proper fit and sealing, making it impossible to accurately measure their permeability parameters. Moreover, the ease of operation of traditional measuring devices needs improvement; operators require specialized training to master their use, which increases the difficulty and cost of the measurement work.

[0006] To overcome the shortcomings of existing technologies and improve the accuracy, convenience, and reliability of permeability parameter measurement in geomembranes, developing a new type of portable geomembrane permeability parameter measurement device is of great practical significance. Utility Model Content

[0007] This invention provides a portable device for measuring the permeability parameters of an impermeable layer, in order to solve the problems existing in the background art.

[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0009] A portable device for measuring the permeability parameters of an impermeable layer includes a measuring tank. Two support pipes are symmetrically connected to the top of the measuring tank. A water injection tank is fixedly connected to the top of each of the two support pipes. The bottoms of the two water injection tanks are connected to the measuring tank through water inlet pipes. The tops of the two water injection tanks are connected to one side through a water injection pipe. A water inlet is also connected to the middle of the water injection pipe. An adhesive injection chamber is provided on the outer side of the measuring tank.

[0010] Furthermore, the measuring container is configured as a ring shape, and a measuring port is provided at the bottom of the measuring container.

[0011] Furthermore, the glue injection chamber is provided in two sets, located on the inner and outer annular surfaces of the measuring tank, respectively. The glue injection chamber is composed of two layers of rings, with the outer ring connected to a glue injection port, and two glue injection ports are symmetrically arranged.

[0012] Furthermore, an evaporation measuring tank is provided on one side of the outer side of the measuring tank, and the evaporation measuring tank is connected to the measuring tank through a pipe.

[0013] Furthermore, the bottom of the outer ring of the glue injection cavity is provided with an outer herringbone-shaped bevel.

[0014] Furthermore, an electric valve is installed on the water inlet pipe, and the electric valve is electrically connected to a control button, which is installed on one side of the water tank.

[0015] Furthermore, a fixing plate is provided on the top of the water filling tank, and the two ends of the fixing plate are respectively fixedly connected to the two water filling tanks, and a handle is fixedly connected to the top of the fixing plate.

[0016] Furthermore, the injection chamber is made of transparent material, and the outer ring of the injection chamber is provided with scale line I.

[0017] Furthermore, the measuring container is made of transparent material, and a scale line II is engraved on one side of the outer side of the container.

[0018] Furthermore, the evaporation measuring vessel is made of transparent material, and a scale line III is engraved on one side of the outer side of the evaporation measuring vessel.

[0019] This utility model has the following beneficial effects:

[0020] (1) This utility model, through the interconnected design of the evaporation measurement tank and the measuring tank, can simultaneously and accurately measure the evaporation of water during the measurement process, providing richer data dimensions for a comprehensive evaluation of the performance of the anti-seepage layer; at the same time, the glue injection chamber, the measuring tank and the evaporation measurement tank are all made of transparent material and are respectively set with scale lines, so that the operator can intuitively and clearly observe the amount of sealant injected, the water level change in the measuring tank and the water level change in the evaporation measurement tank, and can quickly obtain accurate data without the need for additional measuring tools; in order to gain a deeper and more comprehensive understanding of the permeability performance of the anti-seepage layer, it provides a more scientific and accurate basis for the design, construction and maintenance of the anti-seepage layer.

[0021] (2) The glue injection chamber is set on the inner and outer ring surfaces of the measuring tank. The double-ring structure and symmetrically arranged glue injection ports, combined with the outer ring's herringbone bevel design, ensure that the sealant is evenly distributed and further enhances the sealing effect, preventing liquid from seeping out from the contact point between the measuring tank and the anti-seepage layer.

[0022] (3) The electric valve installed on the water inlet pipe is connected to the control button installed on one side of the water injection tank. The operator can easily control the opening and closing of the electric valve by simply pressing the control button, and accurately adjust the flow rate and time of water flowing from the water injection tank into the measuring tank without complicated operating procedures, thereby realizing convenient control of the water injection volume.

[0023] (4) The setting of the top fixing plate and handle of the water tank makes the whole device easy to carry and move, and can quickly adapt to different on-site measurement environments, reducing the difficulty and cost of measurement work and improving work efficiency. It is especially suitable for engineering scenarios that require frequent measurements in different locations. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the scale line arrangement structure of this utility model;

[0028] In the diagram, 1-measuring tank, 2-support pipe, 3-water filling tank, 4-water inlet pipe, 5-water filling pipe, 6-water inlet, 7-glue filling chamber, 8-measuring port, 9-inner ring surface, 10-outer ring surface, 11-outer ring, 12-glue filling port, 13-evaporation measuring tank, 14-outer herringbone bevel, 15-electric valve, 16-control button, 17-fixed plate, 18-handle, 19-scale line I, 20-scale line II, 21-scale line III. Detailed Implementation

[0029] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] A portable device for measuring the permeability parameters of an impermeable layer, as shown in the attached document. Figure 1-4 As shown, the device includes a measuring tank 1, specifically a ring-shaped structure with a measuring port 8 at its bottom. The measuring tank 1 is made of transparent material, and a scale line II20 is engraved on one side of the tank body, allowing operators to visually observe changes in the water level inside the measuring tank 1, thereby accurately controlling the water injection and obtaining accurate osmosis-related data. Two support pipes 2 are symmetrically connected to the top of the measuring tank 1, and water injection tanks 3 are fixedly connected to the top of each of the two support pipes 2. The bottoms of both water injection tanks 3 are connected to the measuring tank 1 via water inlet pipes 4. This symmetrical design ensures the uniformity and stability of water injection. The tops of the two water injection tanks 3 are connected on one side by a water injection pipe 5. The measuring tank 1 is also connected to a water inlet 6, through which the required water can be injected into the water tank 3; a glue injection chamber 7 is provided on the outer side of the measuring tank 1. There are two sets of glue injection chambers 7, located on the inner ring surface 9 and the outer ring surface 10 of the measuring tank 1, respectively. The glue injection chamber 7 is composed of two rings. The outer ring 11 is connected to a glue injection port 12. There are two glue injection ports 12 symmetrically arranged. Waterproof foaming glue is injected into the glue injection chamber 7 through the glue injection ports 12 to seal the bottom of the measuring tank 1, prevent liquid from seeping out from the contact between the measuring tank 1 and the anti-seepage layer, and improve the accuracy of the measurement. At the same time, the two glue injection ports 12 symmetrically arranged ensure that the sealant is evenly distributed.

[0031] An evaporation measuring tank 13 is installed on one side of the outer side of the measuring tank 1. The evaporation measuring tank 13 is connected to the measuring tank 1 through a pipe. During the measurement process, the water in the measuring tank 1 will decrease due to evaporation. This evaporation will interfere with the measurement of the actual permeability. By setting up the evaporation measuring tank 13, the evaporation of water in the measuring tank 1 can be accurately measured, thereby eliminating the influence of evaporation when calculating permeability parameters and improving the accuracy of the measurement results. The evaporation measuring tank 13 is made of transparent material, and a scale line III21 is engraved on one side of the outer side of the evaporation measuring tank 13. The operator can intuitively observe the change of water level in the evaporation measuring tank 13 and obtain accurate evaporation data.

[0032] Furthermore, the bottom of the outer ring 11 of the injection chamber 7 is set with an outer herringbone bevel 14. This bevel design allows the sealant to be better distributed and filled after injection, further improving the sealing effect. The injection chamber 7 is made of transparent material, and the outer ring 11 of the injection chamber 7 is provided with a scale line I19. The operator can accurately observe the amount of sealant injected through the scale line I19, ensuring the sealing effect while ensuring that the sealing conditions are consistent for each measurement.

[0033] Specifically, in order to achieve convenient control of the water volume, an electric valve 15 is provided on the water inlet pipe 4. The electric valve 15 is electrically connected to a control button 16. The control button 16 is installed on one side of the water tank 3. The operator can control the water volume through the control button 16.

[0034] Specifically, a fixing plate 17 is provided on the top of the water filling tank 3, and the two ends of the fixing plate 17 are respectively fixed to the two water filling tanks 3. A handle 18 is fixed to the top of the fixing plate 17. This design makes the whole device more compact and stable, and at the same time makes it convenient for operators to carry and move the device, thus improving the portability of the device.

[0035] Work process

[0036] 1. Preparation: Bring the device to the measurement site and ensure that the measuring tank 1 corresponds to the position of the impermeable layer. Inject an appropriate amount of sealant into the injection chamber 7 through the injection port 12, and observe the scale line I19 to ensure that the injection volume meets the requirements.

[0037] 2. Water injection operation: Inject the water required for measurement into the water injection tank 3 through the water inlet 6, press the control button 16 to open the electric valve 15, so that the water flows from the water injection tank 3 into the measuring tank 1 through the water inlet pipe 4, observe the scale line II 20 on the outer side of the measuring tank 1, and close the electric valve 15 after the water injection volume reaches the predetermined value.

[0038] 3. Measurement process: During the measurement process, observe the changes in water level in measuring tank 1 at regular intervals and record the permeation data; at the same time, observe the scale line Ⅲ21 on the outer side of the evaporation measuring tank 13 and record the evaporation data.

[0039] 4. Result Calculation: Based on the recorded permeability and evaporation data, calculate the actual permeability parameters of the impermeable layer, eliminate the influence of evaporation on the measurement results, and obtain accurate measurement results.

Claims

1. A portable device for measuring the permeability parameters of a geomembrane, characterized in that, The measuring tank (1) is symmetrically connected to two support pipes (2) at the top. A water tank (3) is fixedly connected to the top of each of the two support pipes (2). The bottoms of the two water tanks (3) are connected to the measuring tank (1) through water inlet pipes (4). The tops of the two water tanks (3) are connected to one side through water inlet pipes (5). A water inlet (6) is also connected to the middle of the water inlet pipes (5). A glue injection chamber (7) is provided on the outer side of the measuring tank (1).

2. The portable permeability parameter measuring device for a waterproofing layer according to claim 1, characterized in that, The measuring tank (1) is set as a ring, and the bottom of the measuring tank (1) is provided with a measuring port (8).

3. The portable permeability parameter measuring device for a waterproofing layer according to claim 1, characterized in that, The glue injection chamber (7) is provided in two sets, located on the inner ring surface (9) and outer ring surface (10) of the measuring tank (1), respectively. The glue injection chamber (7) is composed of two rings. The outer ring (11) is connected to the glue injection port (12). There are two glue injection ports (12) symmetrically arranged.

4. The portable permeability parameter measuring device for a waterproofing layer according to claim 1, characterized in that, An evaporation measuring tank (13) is provided on one side of the outer side of the measuring tank (1), and the evaporation measuring tank (13) is connected to the measuring tank (1) through a pipe.

5. The portable permeability parameter measuring device for a geomembrane according to claim 1, characterized in that, The bottom of the outer ring (11) of the glue injection chamber (7) is set with an outer herringbone-shaped bevel (14).

6. The portable permeability parameter measuring device for a geomembrane according to claim 1, characterized in that, An electric valve (15) is provided on the water inlet pipe (4), and the electric valve (15) is electrically connected to a control button (16), which is installed on one side of the water filling tank (3).

7. The portable permeability parameter measuring device for a waterproofing layer according to claim 1, characterized in that, The top of the water tank (3) is provided with a fixing plate (17), and the two ends of the fixing plate (17) are respectively fixed to the two water tanks (3). The top of the fixing plate (17) is fixed with a handle (18).

8. The portable permeability parameter measuring device for a geomembrane according to claim 1, characterized in that, The injection chamber (7) is made of transparent material, and the outer ring (11) of the injection chamber (7) is provided with scale line I (19).

9. The portable permeability parameter measuring device for a waterproofing layer according to claim 1, characterized in that, The measuring container (1) is made of transparent material, and a scale line II (20) is engraved on one side of the outer side of the container.

10. The portable permeability parameter measuring device for a waterproofing layer according to claim 4, characterized in that, The evaporation measuring vessel (13) is made of transparent material, and a scale line III (21) is engraved on one side of the outer side of the evaporation measuring vessel (13).