CN110940321A - Novel flow measuring instrument for weir and using method thereof - Google Patents
Novel flow measuring instrument for weir and using method thereof Download PDFInfo
- Publication number
- CN110940321A CN110940321A CN201911188203.7A CN201911188203A CN110940321A CN 110940321 A CN110940321 A CN 110940321A CN 201911188203 A CN201911188203 A CN 201911188203A CN 110940321 A CN110940321 A CN 110940321A
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- cantilever
- measuring
- bearing plate
- connecting piece
- carrier plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
- G01C13/008—Surveying specially adapted to open water, e.g. sea, lake, river or canal measuring depth of open water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
- G01C13/002—Measuring the movement of open water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/04—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by dip members, e.g. dip-sticks
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides a novel flow measuring instrument for a water gaging weir, which comprises a supporting column, wherein a leveling device is arranged above the supporting column, a cantilever extending horizontally outwards is arranged on the side part of the leveling device, a measuring system is arranged at the end part of the cantilever, the leveling device comprises a lower bearing plate fixed at the top of the supporting column, an upper bearing plate is arranged above the lower bearing plate, a plurality of leveling screws are arranged between the upper bearing plate and the lower bearing plate, the cantilever is fixed on the upper bearing plate, a universal level gauge is arranged on the upper surface of the cantilever, the measuring system comprises an insulating connecting piece connected with the end part of the cantilever, a measuring needle penetrating through the insulating connecting piece and used for measuring the water level is vertically arranged on the insulating connecting piece, scales are arranged on the measuring needle from top to bottom, and a scale auxiliary. The invention has the advantages of reasonable design, simple structure, convenient operation, time and labor saving, low cost, high measurement precision, safety improvement, practicability and innovation.
Description
Technical Field
The invention relates to a novel flow measuring instrument for a weir and a using method thereof.
Background
The measuring weir is a device for calculating the water quantity passing through the cross section of a weir opening in unit time by measuring the height of a water head, is usually used in the field of seepage monitoring, is generally arranged in channels, troughs and ditches, and is commonly provided with a triangular weir, a rectangular weir and a trapezoidal weir.
The traditional common water level measuring mode adopts a steel ruler water level measuring method and a volume method for measurement. When the water level is measured by a steel ruler water level measuring method, the sight line is parallel to the liquid level and needs to be tightly attached to the wet ground or shot by a mobile phone, the measured value is low in accuracy and precision, the attached position (the edge of a weir port) does not meet the requirements of the concrete dam safety monitoring technical specification (DL.T5178-2016), the inclination is easily caused, and the measurement result is inaccurate; volumetric measurements also have three disadvantages: firstly, the measurement precision is difficult to guarantee, the difference between two measurement values before and after the volume regulation method is specified by the specification is not more than 5% of the average value, and the error overrun condition often occurs in field measurement; secondly, the measurement workload is large, two persons are required to cooperate during the volumetric measurement, one person is responsible for nipping and recording, the other person is responsible for holding water and measuring and reading, the measurement result needs to be calculated on site, when the measured value is unqualified, the measurement must be repeated until the measured value is qualified, and the work consumes time and labor; thirdly, the safety of the field observation work is low, and when the safety is measured, a worker needs to hold the fragile product glass measuring cup by hand and stand on a wet and slippery steep slope for working for a long time, so that the personal safety is difficult to guarantee.
Disclosure of Invention
The invention improves the problems, namely the technical problem to be solved by the invention is to provide a novel flow measuring instrument for the weir and a using method thereof, and the novel flow measuring instrument for the weir has a simple structure and is convenient to operate.
The specific embodiment of the invention is as follows: the utility model provides a new-type weir flow measurement appearance, includes the pillar, the pillar top is provided with transfers the levelling device, it is provided with the outside cantilever that extends of level to transfer the levelling device lateral part, the cantilever tip is equipped with measurement system, transfer the levelling device including fixing the lower carrier plate at the stand top, the carrier plate top is provided with the carrier plate down, it is equipped with a plurality of flattening screw to go up between carrier plate and the lower carrier plate, the cantilever is fixed on last carrier plate, the cantilever upper surface is equipped with universal spirit level, measurement system includes the insulating connecting piece with cantilever end connection, be equipped with the gauge needle that runs through insulating connecting piece and be used for testing the water level on the insulating connecting piece perpendicularly, the gauge needle is equipped with the scale from top to bottom, gauge needle upper portion cover is equipped with the scale assistant ruler.
Further, it is provided with the ground connection alarm to go up the carrier plate top, one of them end circuit of ground connection alarm extends to the ground through the pillar is inside to carry out ground connection, and the ground connection alarm other end passes the cantilever through the route inside and is connected with the probe, ground connection alarm system includes power and switch, bee calling organ, control chip is connected with power and switch, bee calling organ, probe electricity.
Furthermore, the bottom of the upright post is fixed on the bottom surface through a plurality of expansion screws.
Furthermore, an inclined support is obliquely arranged below the cantilever and on the side of the support.
Furthermore, the minimum scale distance on the measuring needle is 1mm, and the scale grids on the scale sub-scale are 10 grids, and each grid is 0.1 mm.
Further, a use method of the novel weir flow measuring instrument comprises the following steps: (1) selecting a proper position, and installing the bottom of the upright post on the ground by adopting an expansion screw; (2) when the device is used, the height of the measuring pin is adjusted, so that the contact at the lower end of the measuring pin vertically moves to be in contact with a horizontal plane; (3) at the moment, the contact feeds back a signal to the control chip, and the control chip controls the buzzer to give out warning sound to indicate that the measuring pin is contacted with the water surface; (4) similarly to the reading method of a vernier caliper, the scales on the measuring needle and the scale on the auxiliary scale are confirmed, and the first water surface height at the moment is obtained; (5) and waiting for a period of time, measuring the height of the water surface for the second time again through the steps, and obtaining the rising amount of the water level, the water flow and other related parameters through calculation.
Compared with the prior art, the invention has the following beneficial effects: the device has the advantages of reasonable design, simple structure, high efficiency, convenience, time and labor saving, low cost, high measurement precision, safety improvement, practicability and novelty.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a graduated sub-scale according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a ground alarm according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a simple grounding alarm according to an embodiment of the present invention.
In the figure: 1-pillar, 2-leveling device, 21-lower bearing plate, 22-upper bearing plate, 23-leveling screw, 3-cantilever, 4-measuring system, 41-insulating connecting piece, 42-measuring needle, 43-graduated secondary scale, 44-rotating head, 45-insulating rod, 5-universal level meter, 6-expansion screw, 7-inclined support, 8-grounding alarm, 81-switch, 82-buzzer and 83-control chip.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example (b): as shown in fig. 1 to 4, in the present embodiment, a novel weir flow meter is provided, which includes a support column 1, a leveling device 2 is arranged above the strut 1, a cantilever 3 extending horizontally outwards is arranged at the side part of the leveling device 2, the end part of the cantilever 3 is provided with a measuring system 4, the leveling device 2 comprises a lower bearing plate 21 fixed at the top of the upright post, an upper bearing plate 22 is arranged above the lower bearing plate, a plurality of leveling screws 23 are arranged between the upper bearing plate 22 and the lower bearing plate 21, the cantilever 3 is fixed on the upper bearing plate, the upper surface of the cantilever 3 is provided with a universal level 5, the measuring system 4 comprises an insulating connecting piece 41 connected with the end part of the cantilever, a measuring needle 42 which penetrates through the insulating connecting piece and is used for testing the water level is vertically arranged on the insulating connecting piece, the measuring needle 42 is provided with scales from top to bottom, and the upper part of the measuring needle is sleeved with a scale auxiliary ruler 43.
In this embodiment, be equipped with the rotating head 44 that is used for adjusting the survey needle high position on the insulating connecting piece, rotating head 44 middle part is equipped with the insulator spindle 45 that supports the top at the survey needle lateral part, during the unblock, through rotating the rotating head, loosens the insulator spindle, realizes reciprocating the survey needle, and position control accomplishes the back, and during locking, the counter rotation rotating head, the rotating head drives the insulator spindle and withstands fixed survey needle, convenient and fast once more.
In the embodiment, the leveling screws 23 have an adjusting margin of 50-100 mm, so that the adaptability to uneven ground is greatly improved, and meanwhile, the installation and construction of products are facilitated; the displacement of flattening screw nut rotatory round (360 °) is 1mm, cooperates the universal spirit level of high accuracy, can realize the meticulous straightness adjustment that hangs down below 0.1, and furthest's the straightness that hangs down of assurance survey needle improves water level measurement value's accuracy.
In the present embodiment, the universal level 5 is an angle measuring instrument that measures a slight inclination angle with respect to a horizontal position by directly displaying an angular displacement with a leveling bubble using the principles of liquid flow and liquid level. The measuring instrument adopts a high-precision universal level meter, the DIV value is as low as 2/1000, and the angle measuring precision can reach 0.1 degree.
In this embodiment, the auxiliary scale 43 can be fixed on the upper bearing plate and kept still, and the measuring pin moves in height, so as to read; the cross section of the auxiliary graduated scale is circular.
In this embodiment, the stylus is made of stainless steel.
In this embodiment, the bottom of the upright post 1 is fixed on the bottom surface through a plurality of expansion screws 6.
In the embodiment, in actual use, the vertical rigidity of the measuring instrument is insufficient when the measuring instrument is used, the shaking condition is easy to occur, and particularly, a small displacement can be generated under the condition of a large load, so that the observation precision is influenced. For the vertical rigidity of improving the device, cantilever below and pillar lateral part slope are provided with bearing diagonal 7, and 3 below cantilevers are connected to 7 one ends of bearing diagonal, and the pillar 1 lateral part is connected to the 7 other ends of bearing diagonal, and cantilever, bearing diagonal, pillar form triangle-shaped, more have stability.
In the embodiment, the material of the auxiliary graduated scale is stainless steel, the surface layer is coated with a film for corrosion prevention, and the auxiliary graduated scale is manufactured by adopting a vernier caliper; the minimum scale distance on the measuring needle is 1mm, the scale grids on the scale auxiliary ruler are 10 grids, each grid is 0.1mm, and the measurement of the water level change of 0.1mm is realized.
In this embodiment, when the water level measuring device is used, a proper position is selected, the bottom of the upright post 1 is installed on the ground through the expansion screw 6, the height of the measuring pin is adjusted, the contact point at the lower end of the measuring pin 42 vertically moves to be in contact with the horizontal plane, at the moment, the contact point feeds back a signal to the control chip, the control chip controls the buzzer to give an alarm sound to indicate that the measuring pin is in contact with the water surface, the scale on the measuring pin and the scale on the auxiliary scale are confirmed by a reading method similar to a vernier caliper, the first water surface height at the moment is known, a period of time is waited, the second water surface height of the water surface is measured again through the steps, and relevant parameters such as the rising. The invention has simple structure, high measurement precision, convenience and safety, strong adaptability and convenient operation, and the error in measurement is basically reduced to about 0.04mm through repeated tests, thereby reliably meeting the current leakage water monitoring requirement.
Example 2: on the basis of embodiment 1, in this embodiment, a grounding alarm 8 is arranged above the upper bearing plate 22, a circuit at one end of the grounding alarm extends to the ground through the inside of the strut for grounding, and a circuit at the other end of the grounding alarm passes through the inside of the cantilever to be connected with the probe, the grounding alarm system 8 includes a power supply and switch 81, a buzzer 82 and a control chip 83, and the control chip is electrically connected with the power supply and switch, the buzzer and the probe; the power supply can adopt three No. 5 batteries.
Because the inside humidity of corridor is high, fog condensation water often appears and attaches to the instrument, thereby cause the defect easily and show that the probe also can send out the police dispatch newspaper to form the wrong report for not touching the surface of water under the circumstances of closing the switch, so adopt to scribble the insulating nature that the marine glue increased insulating connecting piece on insulating connecting piece.
When the measuring needle contacts the surface of the earth, a circuit can be connected to trigger an alarm, and the alarm current is less than 1 mA. In order to adapt to the surrounding complex environment and improve the durability of the equipment, the grounding alarm can be hermetically packaged.
The measuring instrument has strong adaptability to the working environment, can be used on inclined ground and in places where the air humidity reaches 100%, uses high-strength 304 stainless steel on the whole body of the device, and adopts a stainless steel welding and splicing process to ensure that the device is durable, stable and rustless.
Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.
Meanwhile, if the invention as described above discloses or relates to parts or structural members fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a new-type water gaging weir flow measurement appearance, a serial communication port, including the pillar, the pillar top is provided with transfers the levelling device, it is provided with the outside cantilever that extends of level to transfer the levelling device lateral part, the cantilever tip is equipped with measurement system, transfer the levelling device including fixing the lower carrier plate at the stand top, the carrier plate top is provided with the carrier plate down, it is equipped with a plurality of flattening screw to go up between carrier plate and the lower carrier plate, the cantilever is fixed on last carrier plate, the cantilever upper surface is equipped with universal spirit level, measurement system includes the insulating connecting piece with cantilever end connection, be equipped with the gauge needle that runs through insulating connecting piece and be used for testing the water level on the insulating connecting piece perpendicularly, the gauge needle is equipped with the scale from top to bottom, gauge needle upper portion cover is equipped.
2. The novel weir flow measuring instrument according to claim 1, wherein a grounding alarm is arranged above the upper bearing plate, one end of the grounding alarm extends to the ground through the inside of the strut to be grounded, the other end of the grounding alarm passes through the inside of the cantilever through a line to be connected with the measuring pin, the grounding alarm system comprises a power supply and switch, a buzzer and a control chip, and the control chip is electrically connected with the power supply and switch, the buzzer and the measuring pin.
3. The new weir flow meter according to claim 2 wherein the bottom of the posts are secured to the floor by a plurality of expansion screws.
4. A novel weir flow meter according to claim 3 wherein there is an angled support below the cantilever and obliquely to the side of the post.
5. The method of using the novel gazette flow meter according to claim 4, wherein the minimum scale distance on the measuring needle is 1mm, and the scales on the secondary scale are 10 scales, each of which is 0.1 mm.
6. A method of using the new weir flow meter of claim 5, comprising the steps of: (1) selecting a proper position, and installing the bottom of the upright post on the ground by adopting an expansion screw; (2) when the device is used, the height of the measuring pin is adjusted, so that the contact at the lower end of the measuring pin vertically moves to be in contact with a horizontal plane; (3) at the moment, the contact feeds back a signal to the control chip, and the control chip controls the buzzer to give out warning sound to indicate that the measuring pin is contacted with the water surface; (4) confirming the scales on the measuring needle and the auxiliary scale and reading to obtain the first water surface height at the moment; (5) and waiting for a period of time, measuring the height of the water surface for the second time again through the steps, and obtaining the rising amount of the water level, the water flow and other related parameters through calculation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911188203.7A CN110940321A (en) | 2019-11-28 | 2019-11-28 | Novel flow measuring instrument for weir and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911188203.7A CN110940321A (en) | 2019-11-28 | 2019-11-28 | Novel flow measuring instrument for weir and using method thereof |
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| CN110940321A true CN110940321A (en) | 2020-03-31 |
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| CN201911188203.7A Pending CN110940321A (en) | 2019-11-28 | 2019-11-28 | Novel flow measuring instrument for weir and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697115A (en) * | 2020-12-01 | 2021-04-23 | 朱传磊 | Intelligence hydraulic engineering bathymetric survey device |
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| CN208043190U (en) * | 2018-04-27 | 2018-11-02 | 通测科技有限公司 | Small reservoir automatic water level monitoring device |
| CN209605901U (en) * | 2019-04-22 | 2019-11-08 | 三峡大学 | A kind of traverse measurement ruler for hydraulic model river water level |
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| CN1920495A (en) * | 2006-09-15 | 2007-02-28 | 清华大学 | Digital trip water level point gauge |
| CN201828301U (en) * | 2010-08-31 | 2011-05-11 | 彭为生 | Liquid level detecting needle and liquid level detecting device |
| CN203287076U (en) * | 2013-05-29 | 2013-11-13 | 盐城工学院 | Bidirectional precise water level measuring ruler |
| CN204788572U (en) * | 2015-05-05 | 2015-11-18 | 浙江华东测绘地理信息有限公司 | Radar fluviograph support device |
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| CN112697115B (en) * | 2020-12-01 | 2022-04-05 | 朱传磊 | Intelligence hydraulic engineering bathymetric survey device |
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Application publication date: 20200331 |