Underground water flow measuring device for exploration adit

Abstract

The utility model discloses a groundwater flow measuring device for exploring footrills, which is characterized in that the height is adjusted through an adjusting component, so that the bottom surface of a rotating wheel is contacted with the water surface, water flow impacts blades of the rotating wheel, the rotating wheel starts to rotate under the action of water flow power, and the rotating speed of the rotating wheel is in direct proportion to the speed of the water flow; each rotation of the rotating wheel is recorded by the magnetic sensor, a processor is arranged in the magnetic sensor, the magnetic sensor converts the number of rotation times into electric signals, and the processor calculates the number of rotation times of the rotating wheel in unit time according to the signals of the magnetic sensor. And finally, the signal processing unit receives and processes a signal of the magnetic sensor, displays flow data and transmits the data to a remote monitoring system, so that data transmission and real-time monitoring are realized, and the device can be used for observing the flow condition of underground water in the footrill for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering investigation, in particular to a groundwater flow measuring device for exploring a horizontal tunnel. Background Art

[0002] Exploration adits are a technical method used in geological surveys for water conservancy and hydropower projects. They are typically excavated in a near-horizontal direction to help engineers identify engineering geological conditions such as stratum lithology, geological structure, rock weathering and unloading, and groundwater activity, providing accurate geological data for project design and construction. There is an urgent need for a groundwater flow measurement device for exploration adits that can be used to observe groundwater flow in adits over a long period of time. Utility Model Content

[0003] The utility model proposes a groundwater flow monitoring device specially used for exploration adit. It is easy to install and suitable for groundwater monitoring under various geological conditions. Based on the working principle of the rotary flowmeter and combined with magnetic sensor technology, it can accurately measure the groundwater flow and realize data transmission and real-time monitoring through a signal processing unit.

[0004] In order to solve the above problems, the technical solutions provided by the present invention are as follows:

[0005] The embodiment of the utility model provides a groundwater flow measuring device for exploration adit, comprising a mounting assembly (1), an adjusting assembly (3) being slidably and position-limitingly mounted on the mounting assembly (1), and a runner flow monitoring assembly (2) being fixedly mounted on the left side of the adjusting assembly (3);

[0006] The runner flow monitoring assembly (2) comprises a plurality of blades (21), a runner (22), a magnetic sensor (24) and a signal processing unit (23); the adjustment assembly (3) comprises a limit slider (31) and a fastening nut (32); the top of the magnetic sensor (24) is electrically connected to the signal processing unit (23); the left end of the magnetic sensor (24) is rotatably mounted with the runner (22); the bottom surface of the runner (22) contacts the water surface; the runner (22) is rotated to the left end of the magnetic sensor (24 ... A plurality of blades (21) are fixedly mounted on the outer surface, and the magnetic sensor (24) is fixedly mounted on the left side of the limit slider (31); the limit slider (31) is slidably engaged with the plug-in rail (11) of the mounting assembly (1), and a fastening nut (32) is mounted on one side of the limit slider (31), and the fastening nut (32) is used to fix the limit slider (31); a pointed breakthrough head (12) is fixedly mounted on the bottom of the plug-in rail (11).

[0007] In an optional embodiment of the present invention, each blade (21) is a rectangular structure, and a plurality of blades (21) are arranged in an annular array on the rotor (22).

[0008] Compared with the prior art, the present invention provides a device for measuring groundwater flow in an exploration adit, which has the following beneficial effects:

[0009] (1) The underground water flow measuring device for the exploration tunnel is installed in the drainage ditch on one side of the tunnel through the installation component. The height is adjusted by adjusting the component so that the bottom surface of the impeller contacts the water surface. The water flow impacts the blades of the impeller. The impeller starts to rotate under the action of the water flow. The rotation speed of the impeller is proportional to the speed of the water flow. Each rotation of the impeller is recorded by the magnetic sensor. A processor is set in the magnetic sensor. The magnetic sensor converts the number of rotations into an electrical signal. The processor calculates the number of impeller rotations per unit time based on the signal of the magnetic sensor. The flow rate can be calculated based on the known specifications of the impeller and blades and the cross-sectional area of the flow channel. Finally, the signal processing unit receives and processes the magnetic sensor signal, displays the flow data and transmits the data to the remote monitoring system.

[0010] (2) When installing the groundwater flow measuring device for the exploration tunnel, the plug-in rail is plugged into the drainage ditch of the exploration tunnel. The pointed breakthrough head at the bottom makes it easier for the plug-in rail to be inserted into the ground. Then, by loosening the fastening nut, the limit slider can be slid on the plug-in rail to adjust the height, thereby adjusting the use height of the runner flow monitoring component so that the bottom surface of the runner contacts the water surface and adapts to water surfaces of different depths. After adjusting the appropriate height, the runner is rotated so that one end of the runner squeezes the outer surface of the plug-in rail for friction, and the limit slider is fixed on the plug-in rail. The groundwater flow measuring device for the exploration tunnel is easy to install and is suitable for groundwater monitoring under various complex geological conditions, while reducing the impact on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the following briefly introduces the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 A schematic structural diagram of a groundwater flow measuring device for an exploration adit provided in an embodiment of the present application.

[0013] Figure 2 A schematic diagram of the exploded structure of a groundwater flow measuring device for an exploration adit provided in an embodiment of the present application.

[0014] Figure 3 A schematic diagram of the structure of a runner flow monitoring component provided in an embodiment of the present application.

[0015] Figure 4 A schematic diagram of the partial structure of a groundwater flow measuring device for an exploration adit provided in an embodiment of the present application.

[0016] Figure numerals: 1. Installation assembly; 2. Impeller flow monitoring assembly; 3. Adjustment assembly; 21. Blade; 22. Impeller; 23. Signal processing unit; 24. Magnetic sensor; 11. Plug-in rail; 12. Tip breakthrough head; 31. Limiting slider; 32. Fastening nut. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0018] like Figure 1 As shown, an embodiment of the utility model provides a groundwater flow measuring device for exploration horizontal tunnels, including a mounting component 1, on which an adjustment component 3 is slidably and positionably mounted, and a runner flow monitoring component 2 is fixedly mounted on the left side of the adjustment component 3.

[0019] Figure 2 、 Figure 3 and Figure 4 Combine Figure 1 The impeller flow monitoring component 2 includes a plurality of blades 21, a impeller 22, a magnetic sensor 24 and a signal processing unit 23, and the adjustment component 3 includes a limit slider 31 and a fastening nut 32. The top of the magnetic sensor 24 is electrically connected to the signal processing unit 23, and the impeller 22 is rotatably installed on the left end of the magnetic sensor 24. The bottom surface of the impeller 22 is in contact with the water surface, and a plurality of blades 21 are fixedly installed on the outer surface of the impeller 22. The magnetic sensor 24 is fixedly installed on the left side of the limit slider 31; the limit slider 31 is slidably engaged on the plug-in rail 11 of the installation component 1, and a fastening nut 32 is installed on one side of the limit slider 31, and the fastening nut 32 is used to fix the limit slider 31. A pointed breakthrough head 12 is fixedly installed at the bottom of the plug-in rail 11. Each blade 21 is a rectangular structure, and multiple blades 21 are arranged in a ring array on the impeller 22.

[0020] Flow calculation: The calculation unit uses the known number of blades 21, the diameter of the impeller 22 and the flow volume represented by each pulse, and uses the formula Q=K×N, where Q is the flow rate, K is the volume constant represented by each pulse, and N is the number of recorded pulses, to convert the pulse signal into an electrical signal representing the flow rate.

[0021] The working principle of the groundwater flow measuring device for exploration adit of the utility model is as follows:

[0022] When installing the device for measuring groundwater flow in an exploration adit, the plug-in rail 11 is plugged into the drainage ditch of the exploration adit. The pointed breakthrough head 12 at the bottom makes it easier for the plug-in rail 11 to be inserted into the ground. Then, by loosening the fastening nut 32, the limit slider 31 can be slid on the plug-in rail 11 to adjust the height, thereby adjusting the use height of the runner flow monitoring component 2, so that the bottom surface of the runner 22 contacts the water surface to adapt to water surfaces of different depths. After adjusting the appropriate height, the runner 22 is rotated so that one end of it squeezes the outer surface of the plug-in rail 11 for friction, and the limit slider 31 is fixed on the plug-in rail 11. The device for measuring groundwater flow in an exploration adit is easy to install and is suitable for groundwater monitoring under various complex geological conditions, while reducing the impact on the environment.

[0023] The groundwater flow measuring device for exploration adit is installed in the drainage ditch on one side of the adit through the installation component 1. The height is adjusted by adjusting the component 3 so that the bottom surface of the runner 22 contacts the water surface, impacting the blades 21 of the runner 22. The runner 22 starts to rotate under the action of the water flow force. The rotation speed of the runner 22 is proportional to the speed of the water flow. Each rotation of the runner 22 is recorded by the magnetic sensor 24. A processor is provided in the magnetic sensor 24. The magnetic sensor 24 converts the number of rotations into an electrical signal. The processor calculates the number of rotations of the runner 22 per unit time based on the signal of the magnetic sensor 24. The flow rate can be calculated based on the known specifications of the runner 22 and the blades 21 and the cross-sectional area of the flow channel. Finally, the signal processing unit 23 receives and processes the signal of the magnetic sensor 24, displays the flow data and transmits the data to the remote monitoring system, realizes data transmission and real-time monitoring, and is used for long-term observation of the groundwater flow in the adit.

[0024] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims.

Claims

1. A device for measuring groundwater flow in an exploration adit, characterized in that: It comprises a mounting assembly (1), an adjusting assembly (3) is mounted on the mounting assembly (1) in a slidable and position-limiting manner, and a runner flow monitoring assembly (2) is fixedly mounted on the left side of the adjusting assembly (3); The runner flow monitoring assembly (2) comprises a plurality of blades (21), a runner (22), a magnetic sensor (24) and a signal processing unit (23); the adjustment assembly (3) comprises a limit slider (31) and a fastening nut (32); the top of the magnetic sensor (24) is electrically connected to the signal processing unit (23); the left end of the magnetic sensor (24) is rotatably mounted with the runner (22); the bottom surface of the runner (22) contacts the water surface; the runner (22) is rotated to the left end of the magnetic sensor (24 ... A plurality of blades (21) are fixedly mounted on the outer surface, and the magnetic sensor (24) is fixedly mounted on the left side of the limit slider (31); the limit slider (31) is slidably engaged with the plug-in rail (11) of the mounting assembly (1), and a fastening nut (32) is mounted on one side of the limit slider (31), and the fastening nut (32) is used to fix the limit slider (31); a pointed breakthrough head (12) is fixedly mounted on the bottom of the plug-in rail (11).

2. The groundwater flow measuring device for exploration adit according to claim 1, characterized in that: Each blade (21) is a rectangular structure, and a plurality of blades (21) are arranged on the rotating wheel (22) in an annular array.

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