A device for collecting seepage flow in hydropower station dams

Abstract

This utility model discloses a seepage flow acquisition device for hydropower station dams, relating to the field of dam seepage flow acquisition. The seepage flow acquisition device includes: a well body with a wellhead and multiple inlet holes arranged around its circumference; a depth adjustment component including a separator and a power structure, wherein the separator is vertically and vertically mounted inside the well body, and the power structure is driven by the separator to move the separator up or down within the well body; an annular airbag fitted onto the separator for sealing the gap between the separator and the inner wall of the well body; and a detachable well cover mounted on the wellhead. The acquisition device of this application can adapt to changes in seepage location and depth under different operating conditions and geological conditions, and can accurately measure the seepage flow at key locations of the dam.

Description

Technical Field

[0001] This utility model relates to the field of dam seepage flow acquisition technology, and more specifically, to a device for acquiring seepage flow in hydropower station dams. Background Technology

[0002] Dam seepage flow refers to the amount of water that leaks through the dam body, foundation, or abutments. The magnitude of dam seepage flow is one of the important indicators for assessing the safe operation of a dam.

[0003] Seepage wells, as one of the seepage flow acquisition devices for dams, consist of a well body, a filter structure, and a well cover. The well body has an inlet, the filter structure covers it, and the well cover covers the well opening, serving to protect the facilities inside the well, prevent foreign objects from falling in, and ensure personnel safety. However, under different operating conditions and geological conditions, the seepage location and depth may change, and a fixed-depth seepage well cannot adapt to these changes. This may make it impossible to accurately monitor the seepage flow at critical locations, thus affecting the assessment of the safety of dams and other engineering structures, reducing the ability to warn of potential risks, and posing certain hidden dangers to the stable operation of the project. Utility Model Content

[0004] The purpose of this utility model is to provide a device for collecting seepage flow in hydropower station dams, aiming to solve the technical problems mentioned in the background art.

[0005] The embodiments of this utility model are implemented as follows:

[0006] This application provides a device for collecting seepage flow in a hydropower station dam, comprising: a well body with a wellhead and multiple inlet holes arranged around its circumference; a depth adjustment assembly including a separator and a power structure, wherein the separator is vertically and vertically disposed inside the well body, and the power structure is driven to the separator to move the separator up or down within the well body; an annular airbag sleeved on the separator for sealing the gap between the separator and the inner wall of the well body; and a well cover detachably disposed at the wellhead.

[0007] Furthermore, based on the aforementioned solution, a filter screen is also included to simultaneously cover multiple of the aforementioned water inlet holes.

[0008] Furthermore, based on the aforementioned scheme, the filter screen is disposed on the outer side of the well body, and the filter screen and the well body are detachably coupled.

[0009] Furthermore, based on the aforementioned scheme, the cross-section of the well body is square, and the outer ring surface of the separator fits against the inner wall of the well body; wherein, the power structure includes a drive motor and a lead screw that are connected in transmission, the drive motor is disposed on the well cover, and the lead screw passes through the separator and is threadedly engaged with the separator.

[0010] Furthermore, based on the aforementioned scheme, the aforementioned power structure also includes a guide rod arranged along the depth direction of the aforementioned well body, and the aforementioned separator is slidably engaged with the aforementioned guide rod.

[0011] Furthermore, based on the aforementioned scheme, the number of guide rods is multiple.

[0012] Furthermore, based on the aforementioned scheme, a pressure sensor is installed on the side of the separator facing the wellhead to detect water pressure.

[0013] Furthermore, based on the aforementioned scheme, the number of pressure sensors is two.

[0014] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0015] In practical use, the data acquisition device of this application first installs the well body at the location where measurement is required. The height of the separator within the well body can be adjusted via a power mechanism to adapt to changes in seepage location and depth under different working conditions and geological conditions, enabling accurate measurement of seepage flow at key locations of dams. Once the separator is properly adjusted, an annular airbag seals the gap between the well body and the separator, effectively preventing water overflow from the lower part of the separator to the upper part, further improving the accuracy of the data acquisition device. This device is highly practical and provides reliable data support for the safety assessment of engineering structures such as dams. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an isometric drawing of a seepage flow acquisition device for a hydropower station dam, according to an embodiment of the present invention.

[0018] Figure 2 This invention provides a cross-section of a seepage flow acquisition device for a hydropower station dam, as described in this embodiment. Figure 1 ;

[0019] Figure 3 This invention provides a cross-section of a seepage flow acquisition device for a hydropower station dam, as described in this embodiment. Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the structure of the separator, lead screw, and guide rod in an embodiment of the present invention.

[0021] Figure 5 for Figure 2 A magnified view of part A in the image.

[0022] Icons: 100-Well body, 101-Well cover, 102-Water inlet, 200-Drive motor, 201-Screw rod, 202-Guide rod, 300-Filter screen, 400-Separator, 401-Pressure sensor, 500-Annular airbag. Detailed Implementation

[0023] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0024] Example

[0025] Please refer to Figures 1-5 A seepage flow collection device for a hydropower station dam includes: a well body 100 with a wellhead and multiple water inlets 102 arranged around its circumference; a depth adjustment assembly including a separator 400 and a power structure, wherein the separator 400 is vertically and vertically disposed inside the well body 100, and the power structure is driven to the separator 400 to drive the separator 400 to rise or fall within the well body 100; an annular airbag 500 sleeved on the separator 400 for sealing the gap between the separator 400 and the inner wall of the well body 100; and a well cover 101 detachably disposed at the wellhead.

[0026] In practical use, the data acquisition device of this application first installs the well body 100 at the location where measurement is required. The height of the separator 400 within the well body 100 can be adjusted via a power mechanism to adapt to changes in seepage location and depth under different working conditions and geological conditions, enabling accurate measurement of seepage flow at key locations of dams. Once the separator 400 is properly adjusted, an annular airbag 500 seals the gap between the well body 100 and the separator 400, effectively preventing water overflow from the lower part of the separator 400 to the upper part, further improving the accuracy of the data acquisition device. This device is highly practical and provides reliable data support for the safety assessment of engineering structures such as dams.

[0027] It is worth noting that the aforementioned multiple water inlet holes 102 are distributed from the upper part to the lower part of the well body 100.

[0028] As a preferred embodiment, a filter screen 300 is also included, which is used to simultaneously cover multiple of the above-mentioned water inlet holes 102.

[0029] In the above embodiments, the filter screen 300 can effectively filter out impurities, silt, branches, and other large particles in the water, preventing these impurities from entering the seepage well and clogging the inlet hole 102 or affecting the normal operation of the measuring equipment, thereby ensuring the smooth flow of the seepage well and the accuracy of the monitoring data. Furthermore, the filtration effect of the filter screen 300 allows for better control of the water flow velocity and flow rate into the seepage well, making the seepage process more stable and predictable, and providing a more reliable basis for engineering safety assessment and management.

[0030] In a preferred embodiment, the filter screen 300 is disposed on the outer side of the well body 100, and the filter screen 300 and the well body 100 are detachably coupled.

[0031] In the above embodiments, the filter screen 300 adopts a detachable design, which facilitates cleaning and maintenance. The filter screen 300 is connected to the well body 100 by multiple bolts, which enables quick disassembly and installation of the filter screen 300 and improves the convenience of use.

[0032] Specifically, the outer side of the well body 100 is provided with a slot for the filter screen 300, which not only improves the stability of the filter screen 300 installation, but also reduces the volume of the data acquisition device of this application.

[0033] In a preferred embodiment, the well body 100 has a square cross-section, and the outer ring surface of the partition 400 is in contact with the inner wall of the well body 100; wherein, the power structure includes a drive motor 200 and a lead screw 201 that are in transmission cooperation, the drive motor 200 is disposed on the well cover 101, and the lead screw 201 passes through the partition 400 and is threadedly engaged with the partition 400.

[0034] In the above embodiment, the drive motor 200 drives the lead screw 201 to rotate. The lead screw 201 cooperates with the nut fixed at the center of the separator 400, thereby driving the separator 400 to rise or fall. The lead screw 201 passes through the center of the separator 400. As a power source, the drive motor 200 has the advantage of stable output and can realize stable adjustment of the separator 400.

[0035] In a preferred embodiment, the power structure further includes a guide rod 202 disposed along the depth direction of the well body 100, and the separator 400 is slidably engaged with the guide rod 202.

[0036] In the above embodiment, the guide rod 202 is located inside the well body 100. The design of the guide rod 202 further improves the stability of the lifting and lowering of the separator 400.

[0037] In a preferred embodiment, the number of guide rods 202 is multiple.

[0038] In the above embodiment, multiple guide rods 202 are arranged sequentially at intervals along the circumferential direction of the separator 400, thereby further improving the stability of the vertical lifting of the separator 400.

[0039] In a preferred embodiment, a pressure sensor 401 is provided on the side of the separator 400 facing the wellhead for detecting water pressure.

[0040] In the above embodiment, the water pressure on the separator 400 is determined based on the data obtained by the pressure sensor 401, and then the depth of the water above the separator 400 can be obtained, thereby realizing the measurement of water depth.

[0041] In a preferred embodiment, the number of pressure sensors 401 is two.

[0042] In the above embodiment, water depth is measured by acquiring data from two pressure sensors 401 and averaging them, which can further improve measurement accuracy.

[0043] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0044] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. A device for collecting seepage flow in a hydropower station dam, characterized in that, include: A well body (100) with a wellhead has multiple water inlet holes (102) on its annular side; The depth adjustment assembly includes a separator (400) and a power structure. The separator (400) is vertically and vertically disposed inside the well body (100). The power structure is driven to the separator (400) to drive the separator (400) to rise or fall in the well body (100). An annular airbag (500) fitted onto the separator (400) is used to seal the gap between the separator (400) and the inner wall of the well body (100); and A detachable manhole cover (101) is installed at the manhole opening.

2. The seepage flow acquisition device for a hydropower station dam according to claim 1, characterized in that, It also includes a filter screen (300) for simultaneously covering multiple of the water inlets (102).

3. The seepage flow acquisition device for a hydropower station dam according to claim 2, characterized in that, The filter screen (300) is disposed on the outer side of the well body (100), and the filter screen (300) and the well body (100) are detachably coupled.

4. The seepage flow acquisition device for a hydropower station dam according to claim 1, characterized in that, The well body (100) has a square cross-section, and the outer ring surface of the separator (400) is in contact with the inner wall of the well body (100). The power structure includes a drive motor (200) and a lead screw (201) that are connected in transmission. The drive motor (200) is installed on the manhole cover (101), and the lead screw (201) passes through the separator (400) and is threadedly connected to the separator (400).

5. A device for collecting seepage flow in a hydropower station dam according to claim 4, characterized in that, The power structure also includes a guide rod (202) arranged along the depth direction of the well body (100), and the separator (400) is slidably engaged with the guide rod (202).

6. A seepage flow acquisition device for a hydropower station dam according to claim 5, characterized in that, The number of guide rods (202) is multiple.

7. A seepage flow acquisition device for a hydropower station dam according to claim 1, characterized in that, A pressure sensor (401) is provided on the side of the separator (400) facing the wellhead for detecting water pressure.

8. A device for collecting seepage flow in a hydropower station dam according to claim 7, characterized in that, The number of pressure sensors (401) is two.

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