CN206359948U - A kind of deflector experimental provision for simulating lateral intake feature - Google Patents
A kind of deflector experimental provision for simulating lateral intake feature Download PDFInfo
- Publication number
- CN206359948U CN206359948U CN201621179126.0U CN201621179126U CN206359948U CN 206359948 U CN206359948 U CN 206359948U CN 201621179126 U CN201621179126 U CN 201621179126U CN 206359948 U CN206359948 U CN 206359948U
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- China
- Prior art keywords
- deflector
- water inlet
- inlet structure
- experimental provision
- lateral intake
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Abstract
A kind of deflector experimental provision for simulating lateral intake feature, belongs to hydraulic engineering technical field.Including water inlet structure and the deflector being arranged at water inlet structure import, it is characterized in that, the deflector is some pieces, is uniformly articulated with water inlet structure entrance point, the streamlined suitable for fluid section is is waited in the cross section of deflector, and vertical section is rectangle；The bias current plate thickness is 0.015m, and length is 0.1m, contour with water inlet structure import, and the rotational angle of deflector is between 90 ° Dao+90 °.Pass through the utility model patent, after arrangement deflector at water inlet structure, it can be seen that current enter after water inlet structure, to a direction bias current, by changing deflector angle, the situation of simulation Practical Project is can reach, method is convenient, fast, very favorable technical support analogy method is provided for the transformation and enlarging of engineering.
Description
Technical field
The utility model patent is related to lateral intake pump station engineering, and in particular to a kind of bias current of simulation lateral intake feature
Plate experimental provision, belongs to hydraulic engineering technical field.
Background technology
Water inlet structure is to install the pumping plant intake construction that pump water inlet supplies pumping water.The main function of water inlet structure is
Good flow condition is provided for unit fixed on water pump suction.In the actual moving process of pumping plant, often there is lateral intake situation, i.e. current
Non-perpendicular water inlet intake pool, one side lateral intake can be produced to the side wall of intake pool one to be washed away, and secondly, lateral intake is easily caused
The generation of vortex rope simultaneously enters suction hose with current.Forebay and the bad fluidised form of intake pool, structural bending and flow section shrink, led
The reason such as Secondary Flow can cause heterogeneous loose body even vortex rope suction situation in the rotation of stream cap and blade wheel chamber, make pump installation and water
There is larger difference in pump performance.
At present, more research has been carried out to the performance of axial-flow pump and guide vane mixed flow pump under the conditions of uniform inflow, but it is real
Water inlet structure is not necessarily all uniform inflow in the engineer applied of border.The utility model can simulate the Practical Project feelings of different lateral intakes
The energy characteristics difference of pump installation is obtained in the case of condition, different inflow angles.Research Significance and application value are very big, not only
The problem of modelling of the actual drift angle that becomes a mandarin of pump station engineering can be solved, or Design of Pump Station personnel provide reference.
Utility model content
The hydraulic performance of lateral intake pumping plant is poor, situations such as easily vortex rope occur, and general experimental provision can not simulation very well
Go out nonlinear inflow or lateral intake condition, therefore to every hydraulic performance at lateral intake pump station, pressure fluctuation situation can not
Simulate and know.
To solve the above problems, the utility model sets 4-6 block deflectors, deflector by the entrance point in water inlet structure
It can freely rotate, the different inflow angles between -90 ° to+90 ° can be simulated, it is every to obtain pump installation by experimental analysis
Energy characteristics data.
The purpose of this utility model is achieved through the following technical solutions：A kind of deflector for simulating lateral intake feature
Experimental provision, including water inlet structure and the deflector that is arranged at water inlet structure import, it is characterized in that, if the deflector is
Dry block, is uniformly articulated with water inlet structure entrance point, the streamlined suitable for fluid section is is waited in the cross section of deflector, and vertical section is
Rectangle；The bias current plate thickness is 0.015m, and length is 0.1m, contour with water inlet structure import, the rotational angle of deflector for-
Between 90 ° Dao+90 °.
The upper and lower side of the deflector is hingeably secured to water inlet structure entrance point by screw thread respectively.
The deflector is connected on draw-gear by drawing bar, when mobile traction device deflector can be guided into it is same
Direction.
The deflector is 4-6 blocks.
The deflector is radially equally spaced in water inlet structure entrance point.
The material of the deflector is high intensity molten plastic, is poured and formed using injection mold.
The cross section of the deflector is formed by connecting by a pair of parallel line, two circular arc line head and the tail that are relative and putting
The present apparatus can simulate the change of the inflow angle between -90 ° to+90 °, deflector and water inlet structure import etc.
Height, is threadably secured, and is connected to by drawing bar on draw-gear, when mobile traction device can guide 4 pieces of deflectors into
Same direction, it is to avoid different deflector angles different situations.
The utility model reasonable in design is simple, and solving in experiment can not be lateral under the specific inflow angle of accurate simulation
The problem of water inlet.The utility model can simulate water inlet structure internal flow state in the case of different inflow angles, pass through pertinent instruments
Corresponding hydraulic loss and hydraulic characteristic(s) and pressure fluctuation situation can be accurately drawn with software, designs convenient and simple, can implement
Property is higher.
By the utility model, after arrangement deflector at water inlet structure, it can be seen that current enter after water inlet structure, Xiang Yi
Individual direction bias current, by changing deflector angle, can reach the situation of simulation Practical Project, method is convenient, is engineering fast
Transformation provides very favorable technical support analogy method with enlarging.
Be restricted in orographic condition, forebay can not be using positive water inlet arrangement form in the case of, side-direction forbay
It is a kind of preferred engineering proposal, at present, many pump station engineering forebays use forebay in lateral intake, but actual moving process
Inside there is the bad fluidised form such as whirlpool, backflow, and had a strong impact on the safe and stable operation of pumping plant, to the water at lateral intake pump station
The research device of the physical experiments of force characteristic still lacks, it is impossible to carry out the energy characteristics of pump installation under the conditions of nonlinear inflow
Experiment.The utility model Patent design is simple, is easy to repeat the feature that becomes a mandarin of actual lateral intake pumping plant, in simulation lateral intake
Water inlet structure physical experiments in have high popularizing value.On October 14th, 2013, State Council held the whole nation
Winter-Spring irrigation and water conservancy projects teleconference, it is desirable to which " in-depth reform, new mechanism, to carry forward vigorously rural water conservancy basic
Build "；Ministry of Water Resources issues within 2013（2013）Agriculture water fills letter word the 09th《On accelerate promote Large-Sized Irrigation Districts continue it is supporting with
Notice of the renovation and rebuilding of pump station project construction progress about work is arranged in transformation on economy of water cousumption, large-scale filling》And flood control standard system
Improve, these popularization and application of social overall background all for the utility model patent provide opportunity.The utility model patent is applicable
In the physical experiments of all types of lateral intake structures, it is ensured that the stable operation of unit safety, increase unit operation is stable
Property, thus will bring huge economic benefit and social influence.
Brief description of the drawings
Fig. 1 the utility model three-dimensional partial schematic diagram；
Fig. 2 the utility model deflector Longitudinal cross section schematics；
Fig. 3 the utility model deflector cross-sectional views；
In figure：1-4 corresponds to 4 pieces of deflectors, 5 water inlet structure admission sections, 6 water inlet structures respectively.
Embodiment
The utility model is described in further detail with brief description of the drawings below in conjunction with the accompanying drawings.
A kind of deflector experimental provision for simulating lateral intake feature, including water inlet structure and 4 pieces of deflectors, respectively such as
Sequence number 1-4 shown in Fig. 1, thickness is about 0.015m, and length is 0.1m, and deflector and water inlet structure import are contour, pass through screw thread
Upper and lower side is fixed, and the pattern of deflector is as shown in Figure 2,3.
4 pieces of deflectors that the utility model is arranged radially are equally spaced in water inlet structure port, the key of implementation
It is to need the steering angle of synchronous deflector, draw-gear is connected to by drawing bar on the screw of fixed bias plate, by adjusting
Whole draw-gear, you can 4 pieces of deflector angles are fixed in identical value, its precision allowable error is within ± 0.3%, with true
Protect the degree of accuracy that experiment is implemented.
Impact can be produced to the vertical section of deflector, the standard of experiment can be influenceed to a certain extent in view of current at import
True property, therefore semicylinder is designed to before and after deflector, the relatively thin of thickness design is 0.015m.The effect of deflector is to draw
Water guide stream, if length is shorter, the guiding to current falls flat, and the design of its length can be actual according to specific engineering
Bi-directional scaling, to reach specified effect.The material of deflector is consistent with water inlet structure, is high intensity molten plastic, using note
Mould, which is poured, to be formed.
Claims (6)
1. the deflector experimental provision of lateral intake feature is simulated a kind of, including water inlet structure and is arranged on water inlet structure import
The deflector at place, it is characterized in that, the deflector is some pieces, is uniformly articulated with water inlet structure entrance point, deflector it is cross-section
The streamlined suitable for fluid section is is waited in face, and vertical section is rectangle；The bias current plate thickness is 0.015m, and length is 0.1m, with
Water inlet structure import is contour, and the rotational angle of deflector is between -90 ° to+90 °.
2. a kind of deflector experimental provision for simulating lateral intake feature according to claim 1, it is characterized in that, it is described inclined
The upper and lower side of stream plate is hingeably secured to water inlet structure entrance point by screw thread respectively.
3. a kind of deflector experimental provision for simulating lateral intake feature according to claim 1, it is characterized in that, it is described inclined
Stream plate is connected on draw-gear by drawing bar, when deflector can be guided into same direction by mobile traction device.
4. a kind of deflector experimental provision for simulating lateral intake feature according to claim 1, it is characterized in that, it is described inclined
Stream plate is 4-6 blocks.
5. a kind of deflector experimental provision for simulating lateral intake feature according to claim 1, it is characterized in that, it is described inclined
Stream plate is radially equally spaced in water inlet structure entrance point.
6. a kind of deflector experimental provision for simulating lateral intake feature according to claim 1, it is characterized in that, it is described inclined
The cross section for flowing plate is formed by connecting by a pair of parallel line, two circular arc line head and the tail that are relative and putting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179126.0U CN206359948U (en) | 2016-10-27 | 2016-10-27 | A kind of deflector experimental provision for simulating lateral intake feature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179126.0U CN206359948U (en) | 2016-10-27 | 2016-10-27 | A kind of deflector experimental provision for simulating lateral intake feature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206359948U true CN206359948U (en) | 2017-07-28 |
Family
ID=59369090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621179126.0U Expired - Fee Related CN206359948U (en) | 2016-10-27 | 2016-10-27 | A kind of deflector experimental provision for simulating lateral intake feature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206359948U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235546A (en) * | 2018-11-28 | 2019-01-18 | 扬州大学 | Forebay of Pumping Station adjustable plate-type column |
| CN110594201A (en) * | 2019-10-28 | 2019-12-20 | 江苏省水利工程科技咨询股份有限公司 | Box culvert type bidirectional flow channel internal flow line type vortex eliminating structure and vortex eliminating method thereof |
| CN114032855A (en) * | 2021-11-25 | 2022-02-11 | 淮安市水利勘测设计研究院有限公司 | Multi freedom steel is adjusted water conservancy diversion mound entirely |
-
2016
- 2016-10-27 CN CN201621179126.0U patent/CN206359948U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235546A (en) * | 2018-11-28 | 2019-01-18 | 扬州大学 | Forebay of Pumping Station adjustable plate-type column |
| CN110594201A (en) * | 2019-10-28 | 2019-12-20 | 江苏省水利工程科技咨询股份有限公司 | Box culvert type bidirectional flow channel internal flow line type vortex eliminating structure and vortex eliminating method thereof |
| CN114032855A (en) * | 2021-11-25 | 2022-02-11 | 淮安市水利勘测设计研究院有限公司 | Multi freedom steel is adjusted water conservancy diversion mound entirely |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170728 Termination date: 20201027 |