Water flow velocity measuring device for water conservancy monitoring

Abstract

The utility model relates to the technical field of water flow velocity measurement, particularly provides a water flow velocity measuring device for water conservancy monitoring, and aims to solve the problem that the existing device is difficult to keep stable when monitoring the water flow velocity of a deep river channel. In order to achieve the purpose, the water flow velocity measuring device for water conservancy monitoring comprises a main rope, a flow guide stabilizing piece and a flow velocity measuring instrument, the flow guide stabilizing piece is drop-shaped and is provided with a head part, a tail part and a middle part, and the head part is connected to the main rope; the flow velocity measuring instrument is connected to the tail of the flow guide stabilizing piece. When the flow guide stabilizing piece is placed in flowing fluid, the flow guide stabilizing piece can keep a stable posture, the specific posture is that the direction from the head to the tail is consistent with the water flow direction, and the flow velocity measuring instrument can keep a stable posture in water under the stabilizing action of the flow guide stabilizing piece, so that the flow velocity of water flow can be accurately measured.

Description

Technical Field

[0001] This utility model relates to the technical field of water flow velocity measurement, and specifically provides a water flow velocity measurement device for water conservancy monitoring. Background Technology

[0002] Water flow velocity is one of the hydrological characteristics of rivers. Accurately understanding the water flow velocity helps to analyze the current state of the river, so as to carry out comprehensive regulation and control of the river and reduce the possibility of hydrological disasters.

[0003] Methods for measuring water flow velocity can be broadly classified into two categories. One category is non-contact measurement, such as using Doppler ultrasonic current meters, time-of-flight ultrasonic current meters, and radar current meters. The advantage of this method is that it does not require contact with the water body, but it is more expensive and the measurement accuracy is affected by river conditions. The other category is contact measurement, which involves placing the measuring instrument in the water for contact measurement.

[0004] Contact flow velocity measurement devices are mainly used in shallow rivers. In deeper rivers, due to the lack of support, it is difficult to maintain stability. As the water flows, the velocity detector will shake, resulting in poor measurement accuracy.

[0005] Therefore, there is an urgent need for a water flow velocity measuring device for water conservancy monitoring to solve the problem that existing measuring devices are difficult to keep stable when monitoring the water flow velocity in deep rivers. Utility Model Content

[0006] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that existing measuring devices are difficult to maintain stability when monitoring the flow velocity of rivers with greater depth.

[0007] In a first aspect, this utility model provides a water flow velocity measuring device for water conservancy monitoring, comprising: a main rope; a flow guide stabilizer, which is teardrop-shaped and has a head, a tail, and a middle section, wherein the diameter of the flow guide stabilizer gradually decreases along the axis of the flow guide stabilizer in both the direction from the middle section to the head and the direction from the middle section to the tail, and the diameter change rate of the head is greater than that of the tail, the head being connected to the main rope; and a flow velocity measuring instrument connected to the tail of the flow guide stabilizer.

[0008] In a specific embodiment of the water flow velocity measuring device for water conservancy monitoring, a plurality of first connecting members are provided between the flow velocity measuring instrument and the flow guiding stabilizer. At least some of the first connecting members are distributed on the same conical surface after being tensioned, and the axial direction of the conical surface coincides with the axial direction of the flow guiding stabilizer and the axial direction of the flow velocity measuring instrument.

[0009] In the specific implementation of the water flow velocity measuring device for water conservancy monitoring, the first end of the first connector is connected to the end of the tail of the flow guide stabilizer.

[0010] In a specific embodiment of the water flow velocity measuring device for water conservancy monitoring, at least some of the connection points of the first ends of the first connectors on the flow guide stabilizer are evenly arranged along the circumference of the flow guide stabilizer.

[0011] In a specific embodiment of the above-mentioned water flow velocity measuring device for water conservancy monitoring, a first hanging ring is provided on the flow guide stabilizer, a first hook is provided at the first end of the first connector, and the first hook is attached to the first hanging ring; and / or, a second hanging ring is provided on the flow velocity measuring instrument, a second hook is provided at the second end of the first connector, and the second hook is attached to the second hanging ring.

[0012] In the specific implementation of the water flow velocity measuring device for water conservancy monitoring, the first connecting member is made of a hard material or a soft material.

[0013] In a specific embodiment of the water flow velocity measuring device for water conservancy monitoring described above, the flow guide stabilizer has an installation hole extending through it along its axial direction, and the axis of the installation hole coincides with the axis of the flow guide stabilizer; a second connector is provided between the flow guide stabilizer and the main rope, the first end of the second connector is fixed in the installation hole, and the second end of the second connector is fixed to the main rope.

[0014] In a specific embodiment of the water flow velocity measuring device for water conservancy monitoring, the flow velocity measuring instrument further includes a signal line, which passes through the mounting hole and is then tied and fixed to the second connector and the main rope.

[0015] In the specific implementation of the above-mentioned water flow velocity measuring device for water conservancy monitoring, the velocity measuring instrument is any one of a propeller-type velocity meter, a turbine-type velocity meter, and an electromagnetic velocity meter.

[0016] In a specific embodiment of the water flow velocity measuring device for water conservancy monitoring, a counterweight is provided at the end of the main rope.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] This utility model relates to a water flow velocity measuring device for hydraulic monitoring, comprising a main rope, a flow guide stabilizer, and a flow velocity measuring instrument. The flow guide stabilizer is teardrop-shaped, having a head, a tail, and a middle section. Along the axis of the flow guide stabilizer, its diameter gradually decreases from the middle section towards the head and from the middle section towards the tail, with the diameter of the head changing at a greater rate than that of the tail. The head is connected to the main rope. The flow velocity measuring instrument is connected to the tail section of the flow guide stabilizer. When the flow guide stabilizer is placed in a flowing fluid, it maintains a stable posture, specifically with the head facing the tail in the same direction as the water flow. The stabilizing effect of the flow guide stabilizer allows the flow velocity measuring instrument to maintain a stable posture in the water, facilitating accurate measurement of the water flow velocity. Attached Figure Description

[0019] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of the first structure of the water flow velocity measuring device provided by this utility model;

[0021] Figure 2 This is a schematic diagram of the second structure of the water flow velocity measuring device provided by this utility model;

[0022] Figure 3 This is a schematic diagram of the third structure of the water flow velocity measuring device provided by this utility model;

[0023] Figure 4 This is a schematic diagram of the fourth structure of the water flow velocity measuring device provided by this utility model;

[0024] Figure 5 yes Figure 4 A schematic diagram of direction AA in the diagram.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Main rope; 2. Flow guide stabilizer; 21. Mounting hole; 22. Receiving groove; 3. Flow velocity meter; 4. First connector; 5. Second connector. Detailed Implementation

[0027] Preferred embodiments of the present disclosure will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present disclosure and are not intended to limit the scope of protection of the present disclosure.

[0028] It should be noted that in the description of this disclosure, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, it should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0030] To address the problem that existing measuring devices struggle to maintain stable flow velocity when monitoring deep river channels, this invention provides a flow velocity measuring device for hydraulic monitoring. Figure 1 As shown, the device includes a main rope 1, a flow guide stabilizer 2, and a flow velocity meter 3. The flow guide stabilizer 2 and the flow velocity meter 3 are connected by a first connector 4, and the flow guide stabilizer 2 and the main rope 1 are connected by a second connector 5. The flow guide stabilizer 2 can maintain a fixed posture in the water flow, thereby ensuring that the flow velocity meter 3 connected to the flow guide stabilizer 2 maintains a stable posture and improving the measurement accuracy of the flow velocity meter 3. The flow velocity meter 3 can be any one of a propeller-type flow meter, a turbine-type flow meter, or an electromagnetic flow meter. A counterweight can be installed at the end of the main rope 1 to ensure that the end of the main rope 1 sinks to the bottom of the river channel.

[0031] Specifically, the flow guide stabilizer 2 is teardrop-shaped, with a head, a middle section, and a tail. The middle section of the flow guide stabilizer 2 has the largest diameter. Along the axis of the flow guide stabilizer 2, the diameter gradually decreases from the middle section towards the head and from the middle section towards the tail, with the diameter of the head changing at a greater rate than that of the tail. When placed in flowing fluid, the flow guide stabilizer 2 maintains a stable posture, specifically with the head facing the tail in the same direction as the water flow. Furthermore, the teardrop-shaped flow guide stabilizer 2 exhibits better stability in water, maintaining a stable posture even in high-velocity water flows, making it more suitable for measuring flow velocity in deep-water environments.

[0032] At least a portion of the first connecting parts 4 are tensioned and distributed on the same conical surface, and the axial direction of this conical surface coincides with the axial direction of the flow guide stabilizer 2 and the axial direction of the flow velocity meter 3. After the flow guide stabilizer 2 maintains a stable posture in the water flow, the first connecting parts 4 are tensioned, so that the axial direction of the flow velocity meter 3 coincides with the axial direction of the flow guide stabilizer 2 and is parallel to the water flow direction. At this time, the water flows perpendicularly through the flow velocity meter 3, and the measurement accuracy of the flow velocity meter 3 is the highest.

[0033] The first connector 4 is made of a rigid material (such as plastics like polyvinyl chloride or metals with supporting capabilities), which can effectively maintain the structural stability of the flow velocity meter 3 and the flow guide stabilizer 2. Of course, in other possible examples, the first connector 4 can also be made of a soft material (such as ropes). After the flow velocity meter 3 is impacted by water flow, the first connector 4 will be stretched and tightened to ensure the stability of the flow velocity meter 3.

[0034] Regarding the structural form of the first connector 4, this utility model introduces several examples for reference.

[0035] In the first example, such as Figure 1 As shown, the first end of the first connector 4 is connected to the end of the tail of the flow guide stabilizer 2, and the second end of the first connector 4 is connected to the housing of the flow velocity measuring instrument 3. The connection position of the second end of the first connector 4 on the flow velocity measuring instrument 3 should ensure that the first connector 4, when tensioned, is located on the same conical surface.

[0036] In the second example, such as Figure 2 As shown, the connection points of the first end of the first connector 4 on the flow guide stabilizer 2 are evenly arranged along the circumference of the flow guide stabilizer 2, and the second end of the first connector 4 is connected to the housing of the flow velocity measuring instrument 3. The connection position of the second end of the first connector 4 on the flow velocity measuring instrument 3 should ensure that the first connector 4, after being tensioned, is located on the same conical surface.

[0037] In the third example, such as Figure 3 As shown, the first connecting member 4 is divided into two groups. Each group of first connecting members 4, after tensioning, lies on the same conical surface. The two groups of first connecting members 4 lie on different conical surfaces after tensioning, but are coaxially arranged. The connection points of the first ends of each group of first connecting members 4 on the flow guide stabilizer 2 are evenly distributed along the circumference of the flow guide stabilizer 2, and the second ends are connected to the housing of the flow velocity measuring instrument 3. The connection position of the second ends of each group of first connecting members 4 on the flow velocity measuring instrument 3 must ensure that the first connecting members 4 in that group lie on the same conical surface after tensioning.

[0038] In addition, the flow guide stabilizer 2 is equipped with a first hanging ring, and the first end of the first connector 4 is equipped with a first hook, which is attached to the first hanging ring. The flow velocity meter 3 is equipped with a second hanging ring, and the second end of the first connector 4 is equipped with a second hook, which is attached to the second hanging ring. In the event of a malfunction of the flow velocity meter 3, the flow velocity meter 3 can be easily removed for replacement and maintenance.

[0039] In some examples, the head of the flow guide stabilizer 2 is provided with a third hanging ring, and the second connector 5 is provided with a third hook, which is attached to the third hanging ring. The flow guide stabilizer 2 can be quickly removed and replaced if damaged.

[0040] In other examples, such as Figure 4 and Figure 5 As shown, the flow guide stabilizer 2 has a through mounting hole 21 along its axial direction, and the axis of the mounting hole 21 coincides with the axis of the flow guide stabilizer 2. The first end of the second connector 5 is fixed in the mounting hole 21, and the second end of the second connector 5 is fixed to the main rope 1. For example, the first end of the second connector 5 is provided with a knot, which is used to fix the first end of the second connector 5 in the mounting hole 21.

[0041] Furthermore, the sidewall of the mounting hole 21 is provided with a plurality of receiving grooves 22 along the axial direction. Part of the first connector 4 is received in the receiving groove 22. The size of the first end of the first connector 4 is larger than the size of the receiving groove 22, so that the first end of the first connector 4 can be restricted by the receiving groove 22, thereby connecting the first end of the first connector 4 to the flow guide stabilizer 2.

[0042] The flow rate measuring instrument 3 is generally also equipped with a signal line, which is used for power supply and signal transmission. The signal line can pass through the mounting hole 21 and be tied to one of the first connectors 4, one of the second connectors 5 and the main rope 1 for fixation.

[0043] In summary, the principle of the water flow velocity measuring device for water conservancy monitoring provided by this utility model is as follows:

[0044] First, the main rope 1 is lowered into the river channel. After the counterweight at the bottom of the main rope 1 sinks to the bottom, the main rope 1 will become taut under the influence of the water flow. The flow guide stabilizer 2 will maintain a stable posture (i.e., its head faces upstream and its tail faces downstream). At the same time, the first connector 4 and the second connector 5 are tensioned, so that the axis of the flow velocity meter 3 coincides with the axis of the flow guide stabilizer 2 and is parallel to the direction of the water flow, thus maintaining the stability of the flow velocity meter 3. Furthermore, at this time, the water flows perpendicularly past the flow velocity meter 3, resulting in the highest measurement accuracy of the flow velocity meter 3.

[0045] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A water flow velocity measuring device for water conservancy monitoring, characterized by, The utility model relates to a flow velocity measuring device, comprising: a main rope (1); a flow stabilizer (2) in the shape of a water drop, having a head, a tail and an intermediate part, the diameter of the flow stabilizer (2) gradually decreases in the direction from the intermediate part to the head and in the direction from the intermediate part to the tail along the axis of the flow stabilizer (2), and the rate of change of the diameter of the head is greater than that of the tail, the head being connected to the main rope (1); a flow velocity measuring instrument (3) connected to the tail of the flow stabilizer (2).

2. The flow velocity measuring device for water flow monitoring according to claim 1, characterized in that, A plurality of first connecting members (4) are arranged between the flow velocity measuring instrument (3) and the flow stabilizer (2), at least part of the first connecting members (4) being distributed on the same conical surface after being tensioned, and the axis of the conical surface coincides with the axis of the flow stabilizer (2) and the axis of the flow velocity measuring instrument (3).

3. The flow velocity measuring device for water flow monitoring according to claim 2, characterized in that, The first ends of the first connecting members (4) are connected to the end of the tail of the flow stabilizer (2).

4. The water flow velocity measuring device for water conservancy monitoring according to claim 2, characterized by The connection points of the first ends of at least part of the first connecting members (4) on the flow stabilizer (2) are uniformly arranged along the circumference of the flow stabilizer (2).

5. The water flow velocity measuring device for water conservancy monitoring according to claim 3 or 4, characterized in that, A first hanging ring is arranged on the flow stabilizer (2), the first ends of the first connecting members (4) are provided with first hooks, and the first hooks are hung on the first hanging ring; and / or A second hanging ring is arranged on the flow velocity measuring instrument (3), the second ends of the first connecting members (4) are provided with second hooks, and the second hooks are hung on the second hanging ring.

6. The water flow velocity measuring device for water conservancy monitoring according to claim 2, characterized by The first connecting members (4) are made of hard material or soft material.

7. The flow velocity measuring device for water flow monitoring according to claim 1, wherein An installation hole (21) is arranged in the axial direction of the flow stabilizer (2) and penetrates the flow stabilizer (2), and the axis of the installation hole (21) coincides with the axis of the flow stabilizer (2); A second connecting member (5) is arranged between the flow stabilizer (2) and the main rope (1), the first end of the second connecting member (5) is fixed in the installation hole (21), and the second end of the second connecting member (5) is fixed to the main rope (1).

8. The water flow velocity measuring device for water conservancy monitoring according to claim 7, characterized in that, The flow velocity measuring instrument (3) further comprises a signal line, which is fixed to the second connecting member (5) and the main rope (1) after penetrating the installation hole (21).

9. The flow velocity measuring device for water flow monitoring according to claim 1, characterized in that, The flow velocity measuring instrument (3) is any one of a propeller type flow velocity measuring instrument, a turbine type flow velocity measuring instrument and an electromagnetic type flow velocity measuring instrument.

10. The flow velocity measuring device for water flow monitoring according to claim 1, characterized by The end of the main rope (1) is provided with a counterweight.

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