CN105549127A - Atomization rainfall intensity measurement apparatus for hydraulic model, and measurement method - Google Patents
Atomization rainfall intensity measurement apparatus for hydraulic model, and measurement method Download PDFInfo
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- CN105549127A CN105549127A CN201610013022.0A CN201610013022A CN105549127A CN 105549127 A CN105549127 A CN 105549127A CN 201610013022 A CN201610013022 A CN 201610013022A CN 105549127 A CN105549127 A CN 105549127A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/14—Rainfall or precipitation gauges
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- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
- G09B25/025—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery hydraulic; pneumatic
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Abstract
The invention discloses an atomization rainfall intensity measurement apparatus for a hydraulic model, and a measurement method. The apparatus comprises a glass culture dish, a pallet and a base, wherein the glass culture dish is disposed on the pallet, the pallet is connected with the base through a support bar, the glass culture dish is internally provided with high-molecular absorbent paper, and the support bar is connected with the pallet and the base respectively through spherical hinges. The atomization rainfall intensity measurement apparatus for the hydraulic mode is simple and practical, and through the atomization rainfall collection apparatus of for hydraulic model, dense atomization rainfall generated in the atomization experiment process of the hydraulic model is ingeniously collected; and an accurate precipitation measurement value is obtained by use of a weighting method, the atomization rainfall intensity in a measurement period can be accurately calculated through a formula, the experiment data precision defect caused by inaccurate reading in rainfall measurement by use of a conventional means is avoided, and certain technical support is provided for research on the flood discharge atomization problem of a hydraulic structure.
Description
Technical field
The present invention relates to atomized rain strength meter and the measuring method of hydraulic model, belong to Hydraulic and Hydro-Power Engineering field.
Background technology
Atomization in Hydraulic and Hydro-Power Engineering refer to the high speed overflow that produced by outlet structure escape works sluicing process in atmosphere aeration spread and overflow enters water time splash, the spray phenomenon of formation.Although atomization is that a kind of rainfall phenomenon but has remarkable difference with natural rainfall, in meteorology, in natural precipitation, rainfall intensity (raininess) value of extra torrential rain is 11.67mm/h, and it is very surprising to be atomized the rainfall intensity caused, easily just up to thousands of more than mm/h, extra torrential rain intensity in natural precipitation, also causes extremely adverse influence to the safe operation in downstream ecology environment and power station simultaneously.
In recent years, Chinese scholars passes through prototype measurement, obtain the related data of a large amount of atomizating phenomenon, there is clear understanding to the mechanism of production of atomization and the division of range of atomization, and progressively defined the method adopting model experiment to combine with theoretical analysis monographic study is launched to outlet structure escape works flood-discharge atomizing problem.But because atomizating phenomenon still exists certain difficulty on theoretical analysis, so hydraulic model experiment just becomes the technical way probing into fogging problem.Therefore how to select rational flood-discharge atomizing raininess measurement means, thus the reliability improving model experiment is topmost restraining factors in research atomization process.
The instrument of the measurement rainfall intensity of current routine is rain gage bucket and measuring cup, and during measurement, rain gage bucket is used for collecting the rainfall in section sometime, pours in measuring cup, just can read rainfall intensity according to the scale mark on measuring cup by the rainwater in precipitation gauge.As used above-mentioned survey rain instrument for the measurement of large guide hydraulic model atomization raininess, there will be the situation that data resolution is lower unavoidably, causing that raininess is less to be even difficult to meet correlative study demand close to the measuring point measuring accuracy of zero.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of atomized rain strength meter and measuring method of hydraulic model, the intensive atomized rain produced in ingenious collection hydraulic model atomization test process, measures accurately.
Technical scheme: for solving the problems of the technologies described above, the atomized rain strength meter of a kind of hydraulic model of the present invention, comprises glass culture dish, pallet and base, and described glass culture dish is positioned on pallet, and pallet is connected with base by support bar.
As preferably, in described glass culture dish, be provided with macromolecule water uptake paper.
As preferably, described support bar is connected respectively by globular hinge with pallet and base.
A measuring method for the atomized rain strength meter of hydraulic model, comprises the following steps:
1), before experiment starts, first according to model observation station bit number design conditions, Unified number is carried out to each group glass culture dish and macromolecule water uptake paper;
2) use milscale to measure the internal diameter R often organizing glass culture dish successively, then calculate floorage A, and the macromolecule water uptake paper of same numbering is placed in its inside;
3), before weighing atomization rainwater-collecting one by one by electronic balance, the gross mass m of glass culture dish and macromolecule water uptake paper is often organized;
4) use preservative film to seal each group glass culture dish, prevent before experiment from starting, the various impurity in environment enter wherein, destroy measuring accuracy.Then each group glass culture dish is all fixed on the pallet upper end of corresponding intrument;
5) atomized rain strength meter complete for assembling is positioned over successively the model observation station place of same numbering according to number order, starts to carry out atomizing Model experiment;
6) preservative film of glass culture dish port sealing is all removed, after experimental period t hour, again the macromolecule water uptake paper often organizing glass culture dish and inside is weighed, the gross mass M after record draws water;
7) the atomized rain intensity I at each measuring point place of model is:
Wherein r
waterfor the density of water.
Beneficial effect: the atomized rain strength meter of hydraulic model of the present invention, simple and practical, by the atomized rain gathering-device of above-mentioned hydraulic model, the intensive atomized rain produced in ingenious collection hydraulic model atomization test process; Adopt weight method, obtain accurate quantity of precipitation measured value, the atomized rain intensity in measurement period accurately can be calculated by formula, thus avoid Rainfall measurement in existing means due to reading and forbidden the test data precision defect that causes, certain technical support is provided to the research of hydraulic structure flood-discharge atomizing problem.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the main TV structure schematic diagram of Fig. 1.
Embodiment
As depicted in figs. 1 and 2, the atomized rain strength meter of a kind of hydraulic model of the present invention, comprises macromolecule water uptake paper 1, glass culture dish 2, pallet 3, support bar 4 and base 5.Wherein, it is inner that macromolecule water uptake paper 1 is placed in glass culture dish 2 in atomized rain collection process, and the upper end of pallet 3 is fixed in the bottom of glass culture dish 2, and the lower end of pallet 3 is connected with support bar 4 one end, and the other end of support bar 4 is connected on base 5.
The shape of described macromolecule water uptake paper 1 is circular, and its diameter is identical with glass culture dish 2 internal diameter, to ensure that the atomization rainwater collected can all be drawn by the macromolecule water uptake paper 1 of glass culture dish 2 inside.
The connected mode at described support bar 4 two ends all adopts spherical linkage 7, utilizes ball-type hinge 7 to have easy to adjust, the advantage that windup-degree is large, can meet the dirigibility in device use procedure.
Described support bar 4 by two pieces of fixed screw 6 fixeds, and by regulating fixed screw 6, can control the tightness that support bar 4 is engaged with the spherical linkage 7 at two ends.
Package unit steadily can be fixed on each observation station position of model by described base 5.
A measuring method for the atomized rain strength meter of hydraulic model, comprises the following steps:
1), before experiment starts, first according to model observation station bit number design conditions, Unified number is carried out to each group glass culture dish 2 and macromolecule water uptake paper 1;
2) use milscale to measure the internal diameter R often organizing glass culture dish 2 successively, then calculate floorage A, and the macromolecule water uptake paper 1 of same numbering is placed in its inside;
3), before weighing atomization rainwater-collecting one by one by electronic balance, the gross mass m of glass culture dish 2 and macromolecule water uptake paper 1 is often organized;
4) use preservative film to seal each group glass culture dish 2, prevent before experiment from starting, the various impurity in environment enter wherein, destroy measuring accuracy.Then each group glass culture dish 2 is all fixed on pallet 3 upper end of corresponding intrument;
5) atomized rain strength meter complete for assembling is positioned over successively the model observation station place of same numbering according to number order, starts to carry out atomizing Model experiment;
6) preservative film of glass culture dish 2 port sealing is all removed, after experimental period t hour, again the macromolecule water uptake paper 1 often organizing glass culture dish 2 and inside is weighed, the gross mass M after record draws water;
7) the atomized rain intensity I at each measuring point place of model is:
Wherein r
waterfor the density of water.
The present invention is used in the process of hydraulic model atomized rain experiment, and can accurately measure each set measuring point place atomized rain intensity, test example sees the following form 1
Table 1. the present invention carries out the test example of certain hydraulic model atomized rain ionization meter
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. an atomized rain strength meter for hydraulic model, it is characterized in that: comprise glass culture dish, pallet and base, described glass culture dish is positioned on pallet, and pallet is connected with base by support bar.
2. the atomized rain strength meter of hydraulic model according to claim 1, is characterized in that: be provided with macromolecule water uptake paper in described glass culture dish.
3. the atomized rain strength meter of hydraulic model according to claim 2, is characterized in that: described support bar is connected respectively by globular hinge with pallet and base.
4. the measuring method of the atomized rain strength meter of hydraulic model according to claim 3, is characterized in that, comprise the following steps:
1), before experiment starts, first according to model observation station bit number design conditions, Unified number is carried out to each group glass culture dish and macromolecule water uptake paper;
2) use milscale to measure the internal diameter R often organizing glass culture dish successively, then calculate floorage A, and the macromolecule water uptake paper of same numbering is placed in its inside;
3), before weighing atomization rainwater-collecting one by one by electronic balance, the gross mass m of glass culture dish and macromolecule water uptake paper is often organized;
4) use preservative film to seal each group glass culture dish, then each group glass culture dish is all fixed on the pallet upper end of corresponding intrument;
5) atomized rain strength meter complete for assembling is positioned over successively the model observation station place of same numbering according to number order, starts to carry out atomizing Model experiment;
6) preservative film of glass culture dish port sealing is all removed, after experimental period t hour, again the macromolecule water uptake paper often organizing glass culture dish and inside is weighed, the gross mass M after record draws water;
7) the atomized rain intensity I at each measuring point place of model is:
Wherein r
waterfor the density of water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610013022.0A CN105549127B (en) | 2016-01-08 | 2016-01-08 | A kind of the atomized rain strength meter and measurement method of hydraulic model |
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| CN201610013022.0A CN105549127B (en) | 2016-01-08 | 2016-01-08 | A kind of the atomized rain strength meter and measurement method of hydraulic model |
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| CN105549127B CN105549127B (en) | 2018-09-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535155A (en) * | 2018-03-01 | 2018-09-14 | 四川大学 | Directly encapsulation Air balance measures the method for determining dam flood-discharge atomizing concentration |
| CN111025429A (en) * | 2019-12-31 | 2020-04-17 | 重庆交通大学 | Device and method for measuring spatial distribution of flood discharge atomization rainfall intensity of hydraulic model |
| CN111207906A (en) * | 2020-01-15 | 2020-05-29 | 天津大学 | Continuous determination method for local atomization rain intensity of multi-working-condition discharge flow under low-pressure environment |
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| CN103336320A (en) * | 2013-07-23 | 2013-10-02 | 湖北亿立能科技有限公司 | Intelligent alarm rain gauge |
| CN203706572U (en) * | 2013-12-13 | 2014-07-09 | 华中农业大学 | Mechanical-transmission stereoscopic movable installation platform |
| CN203759281U (en) * | 2014-03-25 | 2014-08-06 | 青岛市光电工程技术研究院 | High dynamic range wireless intelligent pluviometer |
| CN204389716U (en) * | 2015-01-15 | 2015-06-10 | 河海大学 | A kind of rain gage measuring Different periods |
| CN204422790U (en) * | 2015-03-04 | 2015-06-24 | 山东省水利科学研究院 | A kind of Weighing type snow weighing gauge |
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2016
- 2016-01-08 CN CN201610013022.0A patent/CN105549127B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336320A (en) * | 2013-07-23 | 2013-10-02 | 湖北亿立能科技有限公司 | Intelligent alarm rain gauge |
| CN203706572U (en) * | 2013-12-13 | 2014-07-09 | 华中农业大学 | Mechanical-transmission stereoscopic movable installation platform |
| CN203759281U (en) * | 2014-03-25 | 2014-08-06 | 青岛市光电工程技术研究院 | High dynamic range wireless intelligent pluviometer |
| CN204389716U (en) * | 2015-01-15 | 2015-06-10 | 河海大学 | A kind of rain gage measuring Different periods |
| CN204422790U (en) * | 2015-03-04 | 2015-06-24 | 山东省水利科学研究院 | A kind of Weighing type snow weighing gauge |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535155A (en) * | 2018-03-01 | 2018-09-14 | 四川大学 | Directly encapsulation Air balance measures the method for determining dam flood-discharge atomizing concentration |
| CN111025429A (en) * | 2019-12-31 | 2020-04-17 | 重庆交通大学 | Device and method for measuring spatial distribution of flood discharge atomization rainfall intensity of hydraulic model |
| CN111025429B (en) * | 2019-12-31 | 2022-06-10 | 重庆交通大学 | Device and method for measuring spatial distribution of flood discharge and atomization rainfall intensity of hydraulic model |
| CN111207906A (en) * | 2020-01-15 | 2020-05-29 | 天津大学 | Continuous determination method for local atomization rain intensity of multi-working-condition discharge flow under low-pressure environment |
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| CN105549127B (en) | 2018-09-21 |
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