CN207832824U - Velocity rating flume wave eliminating board - Google Patents
Velocity rating flume wave eliminating board Download PDFInfo
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- CN207832824U CN207832824U CN201820241878.8U CN201820241878U CN207832824U CN 207832824 U CN207832824 U CN 207832824U CN 201820241878 U CN201820241878 U CN 201820241878U CN 207832824 U CN207832824 U CN 207832824U
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- wave eliminating
- column
- bottom plate
- detachable
- disappears
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Abstract
The utility model is related to a kind of velocity rating flume wave eliminating boards, it is characterised in that：With wave eliminating board ontology made of ABS engineering plastics materials, the wave eliminating board ontology includes bottom plate, interconnecting piece on bottom plate, the unrestrained portion that disappears that equidistant intervals are arranged on bottom plate, the unrestrained portion that disappears is formed by multiple fixed wave eliminating columns integrally formed with bottom plate and with multiple detachable wave eliminating columns of bottom plate split production, the interconnecting piece is by the supporting rib with connecting hole, annular brace seat composition for being connect with detachable wave eliminating column, the fixed wave eliminating column and detachable wave eliminating column are cavity type structure, surface is equipped with the unrestrained hole that disappears for being in communication with the outside, the bottom of fixed wave eliminating column and detachable wave eliminating column is in communication with the outside by the connecting hole below bottom plate on open or supporting rib.Its device is simple, and easy disassembly is reusable so that current meter calibration operation more standardizes, is efficient, ensures the accuracy of verification result, ensures that hydrlolgic work orderly carries out.
Description
Technical field
The utility model is related to current meter calibrating installation, especially a kind of velocity rating flume wave eliminating board, especially suitable for
Eliminate the water flow fluctuation that the hydrostatic current meter calibrating pond of calibrating K, c value generates.
Background technology
Hydrology department needs are throughout the year observed the flow velocity in river and flow, and the flow velocity and data on flows in river are important
Hydrographic information, play an important role to the development plan on river periphery.River especially open-channel flow flow rate is measured to believe
Breath, is generally measured using current meter.Compared with other traditional hydrologic survey facilities, current meter has high certainty of measurement, amount
Cheng Kuan, the sensitive, high resolution of induction, small, the advantages that being convenient for carrying, in flood test be complete control discharge process,
Accurate water sand total amount, analysis stage discharge relation and the hydrological data compilation of calculating provides reliable basis.
Current meter is mainly made of rotation paddle, stature and empennage three parts.It revolves and signal contact and bearing shaft etc. is housed in paddle,
There is preferable waterproof sand prevention performance, can be used in high flow rate and heavily silt-carrying river.Current meter is to utilize flow dynamic drive rotor
Rotation, by manually counting, stopwatch timing inquires into flow velocity according to velocity of rotation.Formula is：
It is flow velocity in formula；N is total revolution in the period；tIt is lasted for the period；C is constant, frictional resistance when reflection rotor rotates
Power；K values depend on blade screw pitch or cup type.In order to determine river flow from the rotation of the rotor of conventional current meter, it is necessary to experience
Property establish rotor angular speed and drive rotor rotation water velocity between relationship.Empirically opening relationships claims in this way
For the calibrating of current meter.K, c values are examined and determine in special sink and are obtained.But existing K, c value calibration method has the following problems：
1, the calibration method of existing K, c value is to draw current meter in hydrostatic vater tand with various stabilized speeies, measures calibrating vehicle
Speed and current meter rotor rotating speed, from this two groups of data establish both correlativity.Due to flow velocity in verification process
Disturbance of the instrument hanging stick to water body can generate interference to the verification process of other current meters in pond, influence the accuracy of verification result.
2, the calibrating of existing K, c value needs to be examined and determine with standard tank to special calibration authority, after current meter calibrating
Water body can be driven to generate fluctuation.To ensure the accuracy of verification result, next calibrating need to could be carried out after waterflow stabilization.But it is existing
Some calibrating straight line flume two sides and slot bottom are more smooth, therefore longer the time required to restoring hydrostatic state, cause calibrating efficiency compared with
It is low.
To sum up, current meter is the main means that field carries out open channel flow velocity flow measurement, is needed to relevant parameter before use
It is examined and determine.But verification process in, current meter hanging stick influences the disturbance of water body compared with conference the verification process of other current meters,
Longer the time required to the accuracy of verification result is relatively low, while water body restores, calibrating efficiency is relatively low.The application is aiming above
These problems and propose.
Invention content
The purpose of this utility model is to provide for a kind of velocity rating flume wave eliminating board to solve the above problems, device
Simply, easy disassembly, it is reusable, reduce the disturbance that current meter hanging stick generates water body in original calibrating mode, reduction pair
The influence that other current meter verification process generate, shortens the time of water flow fluctuation so that current meter calibration operation more standardizes,
High efficiency ensures the accuracy of verification result, ensures that hydrlolgic work orderly carries out.
The technical solution of the utility model is：
A kind of velocity rating flume wave eliminating board, it is characterised in that：With wave eliminating board sheet made of ABS engineering plastics materials
Body, the wave eliminating board ontology include bottom plate, the interconnecting piece on bottom plate, on bottom plate equidistant intervals arrange the unrestrained portion that disappears,
It is described disappear unrestrained portion by multiple fixed wave eliminating columns integrally formed with bottom plate and with multiple detachable waves that disappear of bottom plate split production
Column forms, and the interconnecting piece is made of the supporting rib with connecting hole, the annular brace seat for being connect with detachable wave eliminating column,
The fixed wave eliminating column and detachable wave eliminating column are cavity type structure, and surface is equipped with the unrestrained hole that disappears for being in communication with the outside,
The bottom of fixed wave eliminating column and detachable wave eliminating column is in communication with the outside by the connecting hole below bottom plate on open or supporting rib.
Above-mentioned velocity rating flume wave eliminating board, the connecting hole on the supporting rib are examined and determine using expansion bolt and current meter
Slot corresponding position is connected and fixed.
Above-mentioned velocity rating flume wave eliminating board, the detachable wave eliminating column are evenly arranged in bottom plate medium position.
Above-mentioned velocity rating flume wave eliminating board, the annular brace seat is equipped with internal thread, under the detachable wave eliminating column
End is equipped with the external screw thread coordinated with annular brace seat.
The longitudinal cross-section of above-mentioned velocity rating flume wave eliminating board, the fixed wave eliminating column and detachable wave eliminating column is
Waveform.
The surface of above-mentioned velocity rating flume wave eliminating board, the fixed wave eliminating column and detachable wave eliminating column is coarse table
Face, and the unrestrained hole that disappears on its surface is in cellular arrangement.
Above-mentioned velocity rating flume wave eliminating board, the supporting rib are located at the lower section of annular brace seat.
The utility model has the beneficial effects that：
1. fixed wave eliminating column and detachable wave eliminating column pass to water body kinetic energy when examining and determine current meter is effectively divided
Solution absorbs most of kinetic energy, reduces the energy for returning to water body, so that the fast quick-recovery of flow is stablized, until hydrostatic state.
2. the unrestrained hole that disappears on wave eliminating column surface passes to water body kinetic energy when can examine and determine current meter is further divided
Solution is reduced in current meter verification process by the second decomposition to water body kinetic energy to the calibrating generation of other current meters in pond
Interference, improves the accuracy of verification result, while shortening the water flow fluctuation time, improves the calibrating efficiency of velocity rating flume.
3. the utility model uses Demountable, first passes through expansion bolt and wave eliminating board is fixed on current meter calibrating
The two sides of slot and slot bottom, then by detachable wave eliminating column by being threadably mounted on the annular brace seat of wave eliminating board, installation and maintenance are torn open
Replacement operation simplicity is unloaded, it is time saving and energy saving.
4. it is simple in structure, it can be mass, can be arbitrarily cut out according to the shape size of installation position or group is merged
Dress, flexible and changeable, adaptive faculty is strong.
Description of the drawings
Fig. 1 is the front view of the utility model；
Fig. 2 is the vertical view of Fig. 1；
Fig. 3 be in Fig. 2 A-A to sectional view；
Fig. 4 is the portions I enlarged drawing in Fig. 3.
In figure：1. bottom plate, 2. disappear unrestrained portion, 201. fixed wave eliminating columns, 202. detachable wave eliminating columns, 3. disappear unrestrained hole, 4.
Support muscle, 5. connecting holes, 6. annular brace seats.
Specific implementation mode
As Figure 1-Figure 4, the velocity rating flume wave eliminating board has wave eliminating board sheet made of ABS engineering plastics materials
Body.The wave eliminating board ontology includes bottom plate 1, the interconnecting piece on bottom plate 1, the wave that disappears that equidistant intervals are arranged on bottom plate 1
Portion 2, the unrestrained portion 2 that disappears is by 21 fixed wave eliminating columns 201 integrally formed with bottom plate 1 and can with 4 of 1 split production of bottom plate
Dismantle wave eliminating column 202 form, the interconnecting piece by with connecting hole 5 supporting rib 4, for being connect with detachable wave eliminating column 202
Annular brace seat 6 form, the fixed wave eliminating column 201 and detachable wave eliminating column 202 are cavity type structure, and surface is equipped with
The bottom of the unrestrained hole 3 that disappears for being in communication with the outside, fixed wave eliminating column 202 and detachable wave eliminating column 202 is spacious by 1 lower section of bottom plate
Connecting hole 5 on mouth or supporting rib 4 is in communication with the outside.
In the present embodiment, the detachable wave eliminating column 202 is evenly arranged in 1 medium position of bottom plate.The supporting rib 4 is located at
The lower section of annular brace seat 6, the connecting hole 5 on the supporting rib 4 are connected using expansion bolt and velocity rating flume corresponding position
Connect fixation.The annular brace seat 6 is equipped with internal thread, and 202 lower end of detachable wave eliminating column is equipped with to be coordinated with annular brace seat 6
External screw thread.The longitudinal cross-section of the fixed wave eliminating column 201 and detachable wave eliminating column 202 is waveform.It is described fixed
The surface of wave eliminating column 201 and detachable wave eliminating column 202 is rough surface, and the unrestrained hole 3 that disappears on its surface is in cellular arrangement.
The wave eliminating board ontology of the utility model can be arbitrarily cut out according to the shape size of installation position or composite assembly.
Claims (7)
1. a kind of velocity rating flume wave eliminating board, it is characterised in that：With wave eliminating board ontology made of ABS engineering plastics materials,
The wave eliminating board ontology include bottom plate, the interconnecting piece on bottom plate, on bottom plate equidistant intervals arrange the unrestrained portion that disappears, it is described
Disappear unrestrained portion by multiple fixed wave eliminating columns integrally formed with bottom plate and with multiple detachable wave eliminating column groups of bottom plate split production
At the interconnecting piece is made of the supporting rib with connecting hole, the annular brace seat for being connect with detachable wave eliminating column, described
Fixed wave eliminating column and detachable wave eliminating column are cavity type structure, and surface is equipped with the unrestrained hole that disappears for being in communication with the outside, fixed
The bottom of formula wave eliminating column and detachable wave eliminating column is in communication with the outside by the connecting hole below bottom plate on open or supporting rib.
2. velocity rating flume wave eliminating board according to claim 1, it is characterised in that：Connecting hole profit on the supporting rib
It is connected and fixed with expansion bolt and velocity rating flume corresponding position.
3. velocity rating flume wave eliminating board according to claim 1, it is characterised in that：The uniform cloth of detachable wave eliminating column
Set portion position in the soleplate.
4. velocity rating flume wave eliminating board according to claim 1, it is characterised in that：The annular brace seat is equipped with interior spiral shell
Line, the detachable wave eliminating column lower end are equipped with the external screw thread coordinated with annular brace seat.
5. velocity rating flume wave eliminating board according to claim 1, it is characterised in that：The fixed wave eliminating column and removable
The longitudinal cross-section for unloading wave eliminating column is waveform.
6. velocity rating flume wave eliminating board according to claim 1, it is characterised in that：The fixed wave eliminating column and removable
The surface for unloading wave eliminating column is rough surface, and the unrestrained hole that disappears on its surface is in cellular arrangement.
7. velocity rating flume wave eliminating board according to claim 1, it is characterised in that：The supporting rib is located at annular brace
The lower section of seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820241878.8U CN207832824U (en) | 2018-02-11 | 2018-02-11 | Velocity rating flume wave eliminating board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820241878.8U CN207832824U (en) | 2018-02-11 | 2018-02-11 | Velocity rating flume wave eliminating board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207832824U true CN207832824U (en) | 2018-09-07 |
Family
ID=63398068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820241878.8U Expired - Fee Related CN207832824U (en) | 2018-02-11 | 2018-02-11 | Velocity rating flume wave eliminating board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207832824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778774A (en) * | 2019-03-11 | 2019-05-21 | 交通运输部天津水运工程科学研究所 | A kind of permeable spur structure |
-
2018
- 2018-02-11 CN CN201820241878.8U patent/CN207832824U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778774A (en) * | 2019-03-11 | 2019-05-21 | 交通运输部天津水运工程科学研究所 | A kind of permeable spur structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20200211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |