CN215177936U

CN215177936U - Manual reading device for measuring weir

Info

Publication number: CN215177936U
Application number: CN202120672861.XU
Authority: CN
Inventors: 孙元会
Original assignee: Chongqing Yuhao Hydroelectric Dev Co ltd
Current assignee: Chongqing Yuhao Hydroelectric Dev Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-12-14
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses an artificial reading device of a water measuring weir, which is used for detecting the water flow of a weir crest of the water measuring weir, and comprises a float bowl arranged in a vertical state, wherein a steady flow pipe section at the bottom end of the float bowl extends into the bottom in the water measuring weir to be communicated to form a communicating device, a buoyancy ball is movably arranged in the float bowl, a transfer rod penetrating out from the top of the float bowl is connected on the buoyancy ball, a graduated scale is connected on the outer wall of the upper part of the float bowl along the axial direction of the outer wall, and the upper end of the transfer rod moves in a scale range on the graduated scale; compared with the prior art, the utility model, can detect the rivers flow to the weir crest safely and high accuracy.

Description

Manual reading device for measuring weir

Technical Field

The utility model relates to a hydraulic engineering's leakage amount monitoring's technical field, concretely relates to artifical reading device of measurement weir.

Background

The measuring weir refers to an overflow weir which is arranged in a channel or a water tank and is used for measuring the flow of water flow, and some countries also use a wide top weir, a triangular weir, a truncated triangular weir and the like which are directly built by concrete and other industrial materials.

In hydraulic engineering, the main monitoring dam leakage quantity of weir and around the dam seepage flow condition, automatic telemetering measurement has been realized to present weir, its precision can be guaranteed to automatic monitoring also must regular maintenance side, for example weir mouth calcification scale deposit, the scale deposit all can influence the accuracy of its data in the weir buoy, in order to guarantee the monitoring precision, still need carry out artifical data collection and automatic data and compare the survey when maintaining, the method of artifical observation has:

1. the water gauge is arranged on the side wall of the measuring weir pool for reading, the reading is not accurate, the data measurement is difficult, and the surface of the water gauge is easily covered by water scale and cannot be normally used for a long time;

2. the weir flow height is directly observed on the weir crest by using a steel plate ruler, the observation precision of the method is not high, and potential safety hazards exist when a measuring weir with large flow cannot be observed or is observed again.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model aims to provide an artifical reading device of measuring weir to solve among the prior art, the reading precision is not high and there is the problem of potential safety hazard.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an artifical reading device of measuring weir for detect the rivers flow of measuring weir mouth, include the flotation pontoon of arranging along the vertical state, the flotation pontoon top extends to measuring weir edge top, and the stationary flow pipeline section of flotation pontoon bottom stretches into to the interior bottom of measuring weir and feeds through and form the linker, and the flotation pontoon internalization has arranged the buoyancy ball, is connected with the transfer rod of wearing out from the flotation pontoon top on the buoyancy ball, is connected with the scale along its axial direction on the outer wall of flotation pontoon upper portion, and the upper end of transfer rod removes in the scale within range on the scale.

Compared with the prior art, the utility model discloses following beneficial effect has:

the flow stabilizing pipe section at the bottom end of the floating barrel extends to the inner bottom of the water measuring weir, so that a communicating vessel is formed between the floating barrel and the water measuring weir, when the flow at the weir port of the water measuring weir is increased, the liquid level in the floating barrel rises, the transfer rod is driven by the buoyancy ball to move upwards, the scale values before and after the liquid level rises are accurately read on the scale, the difference value is calculated, then a proper calculation mode is selected according to the weir port shape of the water measuring weir to calculate the weir port water flow of the water measuring weir, high-precision detection data are obtained, and the position of the floating barrel enables a worker to safely read data only by standing at the side of the water measuring weir pool; and because of the rivers in the bottom in the weir for weir mouth department rivers torrential degree greatly reduced of weir to make the water that gets into in the flotation pontoon calm, can not make the buoyancy ball rock in the flotation pontoon, further improve the reading precision of data.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments:

reference numerals in the drawings of the specification include: the device comprises a water measuring weir 1, a buoy 2, a buoyancy ball 3, a transfer rod 4, a graduated scale 5, a flow stabilizing pipe section 6, a conduction flow stabilizing hole 7, a pointer 8 and a zero reading buoyancy ball position 9.

As shown in fig. 1, the embodiment of the utility model provides an artifical reading device of measuring weir for detect the rivers flow to the 1 weir crest of measuring weir, include the flotation pontoon 2 of arranging along the vertical state, 2 tops of flotation pontoon extend to 1 weir crest edge top of measuring weir, and the stationary flow pipeline section 6 of 2 bottoms of flotation pontoon stretches into to 1 interior bottoms of measuring weir and feeds through and form the linker, and 2 internalizations of flotation pontoon have buoyancy ball 3, are connected with the transmission pole 4 of wearing out from 2 tops of flotation pontoon on the buoyancy ball 3, are connected with scale 5 along its axial direction on the outer wall of 2 upper portions of flotation pontoon, and the upper end of transmission pole 4 removes in the scale within range on scale 5.

The flow stabilizing pipe section 6 at the bottom end of the floating barrel 2 extends to the inner bottom of the water measuring weir 1, so that a communicating vessel is formed between the floating barrel 2 and the water measuring weir 1, when the flow at the weir port of the water measuring weir 1 is increased, the liquid level in the floating barrel 2 rises, the buoyancy ball 3 drives the transfer rod 4 to move upwards, the scale 5 accurately reads the scale values before and after the liquid level rises, the difference value is calculated, then a proper calculation mode is selected according to the weir port shape of the water measuring weir 1 to calculate the weir port water flow of the water measuring weir 1, high-precision detection data are obtained, and the position of the floating barrel 2 is arranged so that a worker can safely read the data only standing beside the water measuring weir 1; and because of the rivers in weir 1 bottom for weir 1 weir mouth department rivers torrential degree greatly reduced of weir to make the water that gets into in the flotation pontoon 2 calm, can not make buoyancy ball 3 rock in flotation pontoon 2, further improve the reading precision of data.

In the embodiment, the weir plate is used for forming the weir mouth of the water measuring weir 1 into a shape of equal waist right angle, so as to form a triangular weir; the flow calculation formula of the triangular weir is as follows:

Q＝1.343*H^2.47

in the formula: h as weir flow height (m)

Q ═ flow (m)³/s)。

The weir flow height is the value on the graduated scale 5 after the weir crest liquid level of the weir 1 rises to subtract the value on the graduated scale 5 before the weir crest liquid level of the weir 1 rises.

As shown in fig. 1, according to another embodiment of the present invention, the manual reading device for the measuring weir further comprises a flow stabilizing pipe section 6 at the bottom end of the float bowl 2 for structural optimization, the flow stabilizing pipe section 6 at the bottom end of the float bowl 2 for the utility model comprises a pipe body communicated with the float bowl 2 and integrally formed, and a plurality of flow-through flow stabilizing holes 7 are formed on the bottom and the side wall of the pipe body.

Communicate in coming flotation pontoon 2 and weir 1 through a plurality of steady flow hole 7 that lead to, and further after every aperture design that leads to steady flow hole 7 is 2-3mm, make every to lead to steady flow hole 7 and all play certain filtering action, avoid the large granule impurity in weir 1 to get into 2 interior influence detection data of flotation pontoon, still played the effect of stationary flow to rivers simultaneously, make rivers from leading to steady flow hole 7 and soaking in flotation pontoon 2, the liquid level in flotation pontoon 2 is calmly goes up and down, with the detection precision of further improvement data.

As shown in fig. 1, according to another embodiment of the present invention, the manual reading device for a weir further comprises a pointer 8 disposed at the upper end of the transmission rod 4 along the vertical direction; when the pointer 8 is parallel to the scale marks on the graduated scale 5, the numerical value is read, so that the process of reading the numerical value is more convenient, quicker and more accurate; the pointer 8 may be made of steel wire.

As shown in fig. 1, according to another embodiment of the present invention, the manual reading device for the measuring weir further comprises a gap between the buoyancy ball 3 and the inner wall of the float 2 designed to be smaller than 10mm, so as to avoid the excessive horizontal swing of the buoyancy ball 3 in the float 2, so as to further improve the reading accuracy of the detected value.

As shown in fig. 1, according to another embodiment of the present invention, the manual reading device for the measuring weir further comprises a front side of the transfer rod 4 on the graduated scale 5 with the graduation lines, so as to facilitate the staff to rapidly read the detection value.

As shown in fig. 1, according to another embodiment of the present invention, the manual reading device for a water measuring weir further comprises a zero reading buoyancy ball 3 disposed on the outer wall of the float 2, wherein the zero reading buoyancy ball 3 is disposed above the flow stabilizing pipe segment 6 at the bottom end of the float 2.

When the device is used, the flow stabilizing pipe section 6 at the bottom end of the floating barrel 2 extends to the lower part of the weir crest of the water measuring weir 1 to enable the position of the zero reading buoyancy ball 3 to be flush with the weir crest bottom of the water measuring weir 1, so that the numerical value on the graduated scale 5 before the weir crest liquid level of the water measuring weir 1 rises is calibrated as a reference value, and the staff can conveniently and quickly carry out detection and subsequent calculation.

Meanwhile, the buoy 2 is made of a stainless steel pipe or a PVC pipe, and the transfer rod 4 is made of stainless steel wires or resin, so that the phenomenon of corrosion of the buoy in a humid environment is avoided, and the maintenance cost of the buoy is reduced.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides an artifical reading device of measuring weir for detect the rivers flow of measuring weir notch, a serial communication port, include the flotation pontoon of arranging along the vertical state, the flotation pontoon top extends to measuring weir notch edge top, and the stationary flow pipeline section of flotation pontoon bottom stretches into to the interior bottom of measuring weir and feeds through and form the linker, and the flotation pontoon internalization has arranged the buoyancy ball, is connected with the transfer bar of wearing out from the flotation pontoon top on the buoyancy ball, is connected with the scale along its axial direction on the outer wall of flotation pontoon upper portion, and the upper end of transfer bar removes in the scale within range on the scale.

2. The weir manual reading device of claim 1, wherein: the stationary flow pipeline section of flotation pontoon bottom includes the body that communicates and integrated into one piece with the flotation pontoon, all opens on the bottom of body and the lateral wall and has a plurality of steady flow holes that switch on.

3. The weir manual reading device of claim 2, wherein: the aperture of each conduction flow stabilizing hole is 2-3 mm.

4. A weir artificial reading device according to any one of claims 1 to 3, wherein: the upper end of the transfer rod is provided with a pointer along the vertical direction.

5. A weir artificial reading device according to any one of claims 1 to 3, wherein: the clearance between the buoyancy ball and the inner wall of the buoy is less than 10 mm.

6. A weir artificial reading device according to any one of claims 1 to 3, wherein: the transfer rod is positioned on the front side of one side of the graduated scale on which the graduated lines are arranged.

7. A weir artificial reading device according to any one of claims 1 to 3, wherein: the device is characterized in that a zero reading buoyancy ball position is arranged on the outer wall of the buoy, the zero reading buoyancy ball position is located above a flow stabilizing pipe section of the bottom end of the buoy, and the flow stabilizing pipe section of the bottom end of the buoy extends into the position below a weir crest of the water measuring weir to enable the zero reading buoyancy ball position to be flush with the weir crest bottom of the water measuring weir.