CN206804686U - A kind of river flow velocity metering device of hydraulic engineering - Google Patents
A kind of river flow velocity metering device of hydraulic engineering Download PDFInfo
- Publication number
- CN206804686U CN206804686U CN201720077977.2U CN201720077977U CN206804686U CN 206804686 U CN206804686 U CN 206804686U CN 201720077977 U CN201720077977 U CN 201720077977U CN 206804686 U CN206804686 U CN 206804686U
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- CN
- China
- Prior art keywords
- flow velocity
- motion bar
- tensiometer
- metering device
- river flow
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Abstract
The utility model discloses a kind of river flow velocity metering device of hydraulic engineering, belong to flow rate measuring device technical field.The device includes vertical locating rod, resistance measurement apparatus and controller, resistance measurement apparatus includes motion bar and hollow ball, motion bar outer wall is fixedly installed latch closure, latch closure is set in locating rod and formed with locating rod and is slidably matched, motion bar is the hollow structure of upper end sealing, the deflecting roller that its internal upper end is fixedly installed tensiometer and is disposed below, the working end connection stay cord of tensiometer, drawstring stretches out motion bar around deflecting roller and is connected with hollow ball, pulling force is calculated as electronic type tensiometer, the information output of electronic type tensiometer is connected with the information input terminal of controller.Locating rod is fixed in river, in resistance measurement apparatus push-in water, water jet propulsion hollow ball, hollow ball is forced through tensiometer and is transferred in controller, and river flow velocity reality, existing one-point measurement river flow velocity are determined by given formula.
Description
Technical field
The utility model belongs to flow rate measuring device technical field, and particularly a kind of hydraulic engineering is measured with a river flow velocity
Device.
Background technology
The conventional method that earth's surface river tests the speed has the missing method of float technique, color and the missing method of saline solution.Float technique：Surveyed in river
In speed, floating object is placed in a certain position of upstream, while time at that time is write down with stopwatch, when floating object reaches certain of downstream
The time is recorded during one position, while measures the distance of the two positions, the flow velocity of river can be calculated, being repeated several times can be in the hope of
Go out the average speed of river, but this method can only measure fluid surface velocity and error it is larger, floating object is in river
Also can not easily be reached home by barrier barrier；Color is missing method：By injecting coloring agent, such as red ink, initial to fluid
Position pours into coloring agent and records the time, select a certain position be used as final position, when after dyeing fluid arrival when record when
Between, do several repetitions, calculation formula is identical with float technique, and this method is simple and easy, and error is small compared with float technique, but distance more
Can not be long, otherwise coloring agent can dilute seriously, visually be not easy to observe, and sample selected distance is short to cause a deviation；Saline solution is missing method：
Saline solution is injected in a certain position in upstream is to runoff, while the time is recorded with stopwatch, is sensed by being laid in the electrode in downstream
The arrival of saline solution, shown by the sensitive galvanometer being connected on electrode, passage time difference and distance, it is possible to calculate this section
Fluid velocity in distance, calculation formula is identical with above formula, and only the time is from starting to inject saline solution to the pointer of galvanometer
Time for substantially offseting occurs, but the conductive capability in river is influenceed in many ways, for example, river course have certain self-purification capacity or
Midway has other current to be mixed into.
Utility model content
The utility model devises a kind of river flow velocity metering device of hydraulic engineering to solve the above problems, can
Specifically to measure the river flow velocity in a certain place, hardly influenceed by river barrier, measurement error is smaller.
To achieve these goals, the technological means that the utility model is taken is：
The device includes vertical locating rod and resistance measurement apparatus, and described resistance measurement apparatus includes motion bar and sky
Bulbus cordis, motion bar outer wall are fixedly installed latch closure, and latch closure is set in locating rod and formed with locating rod and is slidably matched, motion bar
The deflecting roller for being fixedly installed tensiometer for the hollow structure of upper end sealing, its internal upper end and being disposed below, tensiometer
Working end connection stay cord, drawstring stretches out around deflecting roller motion bar and to be connected with hollow ball, and the metering device is also set up
There is controller, pulling force is calculated as electronic type tensiometer, the information output of electronic type tensiometer and the information input terminal phase of controller
Even.
Described hollow ball rear end carries empennage, the rear end composition screw cap structure of empennage and hollow bottle.
Described empennage end is provided with indicator lamp and the battery of electric energy is provided for indicator lamp.
Balancing weight is provided with described empennage.
Described locating rod lower end is provided with top fence, and fence is threadedly coupled with locating rod.
Water inlet is provided with the middle part of the side wall of described motion bar, drawstring stretches out motion bar by water inlet and connected with hollow ball
Connect, the lower end of motion bar is provided with discharge outlet.
The lower end of described motion bar is further equipped with balancing weight.
The beneficial effects of the utility model are：Locating rod is fixed in river, it is hollow in resistance measurement apparatus push-in water
Ball also enters in water therewith, and river flow promotes hollow ball, and hollow ball stress is transferred to tensiometer, and tensiometer measurement resistance is big
It is small, river flow velocity is determined by the calculation formula of resistance, the method is fixed on a certain sampling position, one-point measurement flow velocity, and
Conventional method can only try to achieve the average speed of one section of current,
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the cross-sectional view of resistance measurement apparatus.
In figure, 1, locating rod, 2, motion bar, 3, hollow ball, 4, latch closure, 5, tensiometer, 6, drawstring, 7, empennage, 8, instruction
Lamp, 9, battery, 10, fence, 11, water inlet, 12, discharge outlet, 13, deflecting roller, 14, controller.
Embodiment
The utility model is a kind of river flow velocity metering device of hydraulic engineering, is improved in conventional method with one section of river
The average value of flow velocity replaces the drawbacks of overall river flow, and the device can dive into water the flow velocity for measuring water body, and the device includes
Vertical locating rod 1 and resistance measurement apparatus, described resistance measurement apparatus include motion bar 2 and hollow ball 3, outside motion bar 2
Wall is fixedly installed latch closure 4, and latch closure 4 is set in locating rod 1 and formed with locating rod 1 and is slidably matched, and motion bar 2 is that upper end is close
The hollow structure of envelope, its internal upper end are fixedly installed tensiometer 5 and the deflecting roller being disposed below 13, the work of tensiometer 5
Make end connection stay cord 6, drawstring 6 stretches out motion bar 2 around deflecting roller 13 and is connected with hollow ball 3, and the metering device also increases
Provided with controller, tensiometer 5 is electronic type tensiometer, and the information output of electronic type tensiometer inputs with the information of controller 14
End is connected.
The utility model is described further with specific embodiment below in conjunction with the accompanying drawings.
Specific embodiment, as depicted in figs. 1 and 2, the lower end of locating rod 1 are provided with top fence 10, can directly by
Locating rod 1 is inserted in water and is fixed.Motion bar 2 is pushed downwardly into water by locating rod 1 after inserting in water, the side wall of motion bar 2
Middle part is provided with water inlet 11, and drawstring 6 stretches out motion bar 2 by water inlet 11 and is connected with hollow ball 3, and the lower end of motion bar 2 is set
It is equipped with discharge outlet 12.When motion bar 2 is vertically down into river, water inlet 11 pours into the density that river adds motion bar 2
And weight, gravity suffered by motion bar 2 are more than buoyancy, ensure in 2 potential water of motion bar, but the upper end of motion bar 2 can seal one
Section air, it is therefore prevented that tensiometer 5 is also dipped into river and failure.River inside when motion bar 2 proposes from river take advantage of a situation from
Its lower end discharge outlet outflow.The metering device that tests the speed of hydraulic engineering often moves with engineering staff to be used, and motion bar 2 is set in
In locating rod 1, fence 10 is threadedly coupled with locating rod 1, is designed as detachable sleeve structure and screw connection structure, can be with
Motion bar 2 and fence 10 are disassembled, river flow velocity metering device is split as multiple parts, storage wants cube to reduce,
It is easy to arrange and carries and be not easy to collide with moving process, come off and lose parts.
The described rear end of hollow ball 3 carries empennage 7, and the front end of empennage 7 is cavity and forms spiral cover knot with the rear end of hollow ball 3
Structure, the cavity of hollow ball 3 are connected with the cavity of empennage 7.Hollow ball 3 uses thin-walled ball, to make hollow ball 3 slip into water,
Screw cap structure is turned on, the river in the region to be detected is filled in hollow ball 3, makes the density of hollow ball 3 and river density big
Cause identical, can be very good to pull the plug；The water in hollow ball 3 is poured out to the flow velocity for measuring river water surface.It is described
The end of empennage 7 be provided with indicator lamp 8 and the battery 9 of electric energy, indicator lamp 8 and battery 9 and the front end of empennage 7 be provided for indicator lamp 8
Cavity be isolated and sealed set.Empennage 7 can make hollow ball 3 keep balance, prevent it rotates from influenceing tensiometer 5
Measured value, indicator lamp 8 is housed on empennage 7, can be according to finger when hollow ball 3 pulls the plug relatively depth or more muddy river
Show lamp 8 to confirm the position of hollow ball 3.
The lower end of described motion bar 2 is further equipped with balancing weight.Balancing weight is provided with described empennage 7.Balancing weight is
To coordinate river density and measurement demand, the position of hollow ball 3 and motion bar 2 is coordinated to set.
The metering device also has additional controller, and tensiometer 5 is electronic type tensiometer, and the information of electronic type tensiometer is defeated
Go out end with the information input terminal of controller 14 to be connected.After pulling force numerical value is transferred to controller 14, controller 14 is according to operational formula
River flow velocity is calculated, the calculation formula of river flow velocity is：
FxRepresent the pulling force of tensiometer measurement；
ρ represents the density of river；
V represents the flow velocity of river；
CxResistance coefficient is represented, for the demarcation numerical value that dispatches from the factory, the metering formula of resistance coefficient is：X represents resistance, q
Dynamic pressure is represented, S represents area of reference；
The reference lifting surface area of behalf hollow ball.
Finally the calculation formula of river flow velocity is：
Claims (7)
- A kind of 1. river flow velocity metering device of hydraulic engineering, it is characterised in that：The device include vertical locating rod (1) and Resistance measurement apparatus, described resistance measurement apparatus include motion bar (2) and hollow ball (3), the fixed setting of motion bar (2) outer wall There is latch closure (4), latch closure (4) is set in locating rod (1) and formed with locating rod (1) and is slidably matched, and motion bar (2) is that upper end is close The hollow structure of envelope, the deflecting roller (13) that its internal upper end is fixedly installed tensiometer (5) and is disposed below, tensiometer (5) working end connection stay cord (6), drawstring (6) stretch out motion bar (2) around deflecting roller (13) and are connected with hollow ball (3), The metering device also has additional controller, and tensiometer (5) is electronic type tensiometer, the information output of electronic type tensiometer with The information input terminal of controller (14) is connected.
- A kind of 2. river flow velocity metering device of hydraulic engineering according to claim 1, it is characterised in that：Described sky Bulbus cordis (3) rear end carries empennage (7), and empennage (7) front end is cavity and forms screw cap structure, hollow ball with the rear end of hollow bottle (3) cavity is connected with the cavity of empennage (7).
- A kind of 3. river flow velocity metering device of hydraulic engineering according to claim 2, it is characterised in that：Described tail The wing (7) end is provided with indicator lamp (8) and the battery (9) of electric energy, indicator lamp (8) and battery (9) and tail is provided for indicator lamp (8) The cavity of the wing (7) front end is isolated and sealed set.
- A kind of 4. river flow velocity metering device of hydraulic engineering according to claim 2, it is characterised in that：Described tail The wing is provided with balancing weight on (7).
- A kind of 5. river flow velocity metering device of hydraulic engineering according to claim 1, it is characterised in that：Described determines Position bar (1) lower end is provided with top fence (10), and fence (10) is threadedly coupled with locating rod (1).
- A kind of 6. river flow velocity metering device of hydraulic engineering according to claim 1, it is characterised in that：Described work Water inlet (11) is provided with the middle part of the side wall of lever (2), drawstring (6) stretches out motion bar (2) and hollow ball by water inlet (11) (3) connect, the lower end of motion bar (2) is provided with discharge outlet (12).
- A kind of 7. river flow velocity metering device of hydraulic engineering according to claim 1, it is characterised in that：Described work The lower end of lever (2) is further equipped with balancing weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720077977.2U CN206804686U (en) | 2017-01-22 | 2017-01-22 | A kind of river flow velocity metering device of hydraulic engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720077977.2U CN206804686U (en) | 2017-01-22 | 2017-01-22 | A kind of river flow velocity metering device of hydraulic engineering |
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| Publication Number | Publication Date |
|---|---|
| CN206804686U true CN206804686U (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720077977.2U Expired - Fee Related CN206804686U (en) | 2017-01-22 | 2017-01-22 | A kind of river flow velocity metering device of hydraulic engineering |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987091A (en) * | 2019-11-18 | 2020-04-10 | 中绿环保科技股份有限公司 | Liquid flow and liquid level continuous online monitoring method and device |
| CN111289767A (en) * | 2020-03-25 | 2020-06-16 | 王君华 | High-precision water speed measuring device based on recyclable use of floating mark method |
| CN112067840A (en) * | 2020-08-28 | 2020-12-11 | 南昌工程学院 | Pulling force type water flow velocity measuring device |
-
2017
- 2017-01-22 CN CN201720077977.2U patent/CN206804686U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987091A (en) * | 2019-11-18 | 2020-04-10 | 中绿环保科技股份有限公司 | Liquid flow and liquid level continuous online monitoring method and device |
| CN111289767A (en) * | 2020-03-25 | 2020-06-16 | 王君华 | High-precision water speed measuring device based on recyclable use of floating mark method |
| CN112067840A (en) * | 2020-08-28 | 2020-12-11 | 南昌工程学院 | Pulling force type water flow velocity measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20200122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |