CN204649381U - A kind of multisection type tank experiment annular water tank - Google Patents
A kind of multisection type tank experiment annular water tank Download PDFInfo
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- CN204649381U CN204649381U CN201520215557.7U CN201520215557U CN204649381U CN 204649381 U CN204649381 U CN 204649381U CN 201520215557 U CN201520215557 U CN 201520215557U CN 204649381 U CN204649381 U CN 204649381U
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Abstract
The utility model relates to a kind of multisection type tank experiment annular water tank, comprise bracing or strutting arrangement and water trough body, water trough body is annular channel, is provided with the power section of head and the tail connection successively, water exit end, the first turning, first flow, the second turning, stable section, contraction section, test section, diffuser, the 3rd turning, the second runner and the 4th turning in water trough body.The utility model is installed, safeguard, convenient test, horizontal positioned is conducive to conventional teaching, the application of scientific research or commercial Application fluid test, foam during experiment in current is easy to observe surface water stream mode, current enter wider first flow by narrower water exit end by the first turning, the stable section with first flow same widths is entered again by the second turning, then contraction section is entered, the width of the second runner is less than the width of first flow and is greater than the width of water exit end, cross current can not only be eliminated like this at test section, obtain comparatively steady, uniform flow field, and obtain the water velocity needed at test section simultaneously.
Description
Technical field
The invention belongs to fluid mechanics and hydraulic experiment equipment technical field, particularly a kind of multisection type tank experiment annular water tank.
Background technology
In circulating water chennel, water is circulating, test model is arranged on the active section of water free surface, can test for a long time, and not by the restriction of time, so not only be convenient to the measurement carrying out speed and pressure, also observing the flow field around model by the view window of side and bottom and photograph, this is that miscellaneous equipment institute is irreplaceable.
At present for the annular water tank of this type of experiment, the impact of cross current can not be eliminated completely, the precision of experimental data is affected.
Summary of the invention
The present invention provides a kind of horizontal multisection type tank experiment annular water tank for solving in known technology the technical matters that exists, and this tank is annular channel, can eliminate the impact of cross current, and the precision of experimental data can not be affected.
The technical scheme that the present invention takes for the technical matters existed in solution known technology is:
A kind of multisection type tank experiment annular water tank, comprise bracing or strutting arrangement and water trough body, described water trough body is annular channel, the power section of head and the tail connection successively, water exit end, the first turning, first flow, the second turning, stable section, contraction section, test section, diffuser, the 3rd turning, the second runner and the 4th turning is provided with in described water trough body
The cross section of described water exit end is rectangle, flat straight wall, and its width is less than the width of stable section, and the length sum of its length and power section forms the length of water trough body (long limit) side;
Described first turning, the second turning, the 3rd turning and the 4th turning are by lateral surface and medial surface composition, medial surface is arcwall face, lateral surface comprises mutually perpendicular vertical guide, arrange circular arc bent angle between two vertical guides, described first turning, the second turning, the 3rd turning and the 4th corner are provided with flow deflector;
The width of described first flow is identical with the width of stable section, and is greater than the width of water exit end;
The both sides of described diffuser are the vertical inclined-plane outwards expanded gradually, and the length of medial surface is less than the length of lateral surface;
Described water exit end and the second runner are provided with screen pack;
Described stable section is provided with honeycomb.
Described power section provides power by water pump.
The width of described water exit end is 2.5m.
Flow deflector in described first turning is the first flow deflector, and described first flow deflector is set to two rows arranged side by side, and odd number is arranged, and every row amount is set to 9.
The flow deflector arranged in described second turning is the second flow deflector, and described second flow deflector odd number is arranged, and quantity is 11.
The flow deflector arranged in described 3rd turning is the 3rd flow deflector, and described 3rd flow deflector even number is arranged, and its quantity is 10.
The flow deflector arranged in described 4th turning is the 4th flow deflector, and it is two rows that described 4th flow deflector is set up in parallel, and the number of often arranging setting is even number, and quantity is 8.
The both sides of described contraction section are by evagination arcwall face and convex arcwall face composition, and evagination arcwall face and convex arcwall face are in the nature transition of flex point place.
The cross section of described test section is rectangle, flat straight wall, and width is 2.3m.
The cross section of described first flow section is rectangle, flat straight wall, and width is 4m.
The advantage that the present invention has and good effect are: current of the present invention enter wider first flow by narrower water exit end by the first turning, the stable section with first flow same widths is entered again by the second turning, then contraction section is entered, the width of the second runner is less than the width of first flow and is greater than the width of water exit end, cross current can not only be eliminated like this at test section, obtain comparatively steady, uniform flow field, and obtain the water velocity needed at test section simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In Fig. 1: 1. power section, 2. water exit end, 3. the first turning, 4. first flow section, 5. the second turning, 6. stable section, 7. contraction section, 8. test section, 9. diffuser, 10. the 3rd turning, 11. second flow channel section, 12. the 4th turnings, 13. screen packs, 14. first flow deflectors, 15. honeycombs, 16. second flow deflectors, 17. the 3rd flow deflectors, 18. the 4th flow deflectors.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of multisection type tank experiment annular water tank, comprise bracing or strutting arrangement and water trough body, water trough body is annular channel, is provided with the power section 1 of head and the tail connection successively, water exit end 2, first turning 3, first flow section 4, second turning 5, stable section 6, contraction section 7, test section 8, diffuser 9, the 3rd turning 10, second flow channel section 11 and the 4th turning 12 in water trough body.Power section 1 provides power by water pump.
The cross section of water exit end 2 is rectangle, flat straight wall, its width is 2.5m, be less than the width 4m of stable section 6, the length sum of its length and power section forms the length of water trough body (long limit) side, current are through the water exit end 2 of longer distance, a large amount of air can be avoided to be brought into the first turning, second turning, then water pump is entered through circulation, not only can improve the work efficiency of pump, and understand the current observation of Optimum Experiment section and the measuring accuracy to model, make shear wave weaken gradually simultaneously, at water exit end 2, first turning 3 place is provided with horizontal screen pack 13, the impact of shear wave can be eliminated further, be conducive to being formed comparatively stable axial current.
First turning 3 is made up of lateral surface and medial surface, medial surface is arcwall face, lateral surface comprises mutually perpendicular vertical guide (straight wall), arrange circular arc bent angle between two vertical guides, the first turning 3 is provided with the first flow deflector 14, in order to ensure that the velocity of discharge of current can not offset, guarantee the homogeneity in flow field, first flow deflector 14 is set to two rows arranged side by side, and odd number is arranged, and every row amount is set to 9.
The cross section of first flow section 4 is rectangle, flat straight wall, and width is 4m.
Second turning 5 is made up of lateral surface and medial surface, and medial surface is arcwall face, and lateral surface comprises mutually perpendicular vertical guide (straight wall), between two vertical guides, circular arc bent angle is set, first turning 3 is provided with the second flow deflector 16, and odd number is arranged, and quantity is 11.
The cross section of stable section 6 is rectangle, flat straight wall, and width is 4m.Honeycomb 15 is provided with in stable section 6.
The both sides of contraction section 7 are by evagination arcwall face and convex arcwall face composition, and evagination arcwall face and convex arcwall face, in the nature transition of flex point place, boundary-layer separation and hole, local can not occur.Contraction section entrance width is 1.5-2.5 times of exit width, the incoming flow of stable section can not only be accelerated, the flow velocity of active section is made to reach the test speed of needs, standing wave can be reduced simultaneously, water velocity after contraction section is exported is evenly distributed, therefore can improve homogeneity, the stability in flow field, reduce turbulivity.
Current enter wider first flow 4 by narrower water exit end 2 by the first turning 3, the stable section 6 with first flow 4 same widths is entered again by the second turning 5, then contraction section 7 is entered, the width of the second runner is less than the width of first flow and is greater than the width of water exit end, cross current can not only be eliminated like this at test section, obtain comparatively steady, uniform flow field, and obtain the water velocity needed at test section simultaneously.
The cross section of test section 8 is rectangle, flat straight wall, and width is 2.3m.
The both sides of diffuser 9 are the vertical inclined-plane outwards expanded gradually, and the length of medial surface is less than the length of lateral surface, and such structure both reduced energy loss, also stabilized flow velocity, are conducive to eliminating shear wave.
Current, through contraction section 7, enter the 3rd turning 10 from test section 8 again through asymmetrical diffuser 9, can reduce the generation of resonance like this, extend the serviceable life of cell body, and current can be made to form uniform flow field more reposefully.
3rd turning 10 is made up of lateral surface and medial surface, and medial surface is arcwall face, and lateral surface comprises mutually perpendicular vertical guide (straight wall), between two vertical guides, circular arc bent angle is set, be provided with the 3rd flow deflector in 3rd turning, the 3rd flow deflector even number is arranged, and is 10.
The cross section of the second flow channel section 11 is rectangle, flat straight wall, and width is 3m, and length is 7.5m, and the second flow channel section 11 is provided with screen pack 13 near the 4th turning 12 place.The width of the second runner 11 is greater than the width of power section 1, can increase the flow velocity entering power section 1, reduces the kinetic energy rejection of power section, improves the work efficiency of power section.
4th turning 12 is made up of lateral surface and medial surface, medial surface is arcwall face, lateral surface comprises mutually perpendicular vertical guide (straight wall), arranges circular arc bent angle between two vertical guides, is provided with the 4th flow deflector in the 4th turning 12, it is two rows that 4th flow deflector is set up in parallel, the number of often arranging setting is even number, is specially 8, can form comparatively uniform flow field, the current entering power section 1 are relaxed more, finally to enable the current of circulation obtain stable flow field at test section.
The course of work of the present invention is:
1) water is poured into tank until require water level;
2) experimental provision is opened;
3) water pump is started working, and starts to form current;
4) foam is sowed at the first turning 3 place;
5) current enter the first turning 3 through water exit end 2, enter first flow 4 through flow deflector 14,
6) current are by after first flow 4, enter the second turning 5, under the effect of the directional stream-guidance sheet 16 at the second turning 5, enter stable section 6;
7) current enter contraction section 7 through the honeycomb 15 of stable section, then obtain test current at test section 8;
8) foam at the second runner 11 filtering net place is cleaned.
Experimental enviroment of the present invention is less demanding, installs, safeguards, convenient test, and the foam in current is easy to observe surface water stream mode, and device horizontal positioned is conducive to the application of conventional teaching, scientific research or commercial Application fluid test.
Above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, and those of ordinary skill in the field should be appreciated that and still can modify to the embodiment of invention or portion of techniques feature be carried out to equivalent replacement; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the technology of request of the present invention protection.
Claims (8)
1. a multisection type tank experiment annular water tank, comprise bracing or strutting arrangement and water trough body, described water trough body is annular channel, it is characterized in that, the power section of head and the tail connection successively, water exit end, the first turning, first flow, the second turning, stable section, contraction section, test section, diffuser, the 3rd turning, the second runner and the 4th turning is provided with in described water trough body
The cross section of described water exit end is rectangle, flat straight wall, and its width is less than the width of stable section, and the length sum of its length and power section forms the length of water trough body side;
Described first turning, the second turning, the 3rd turning and the 4th turning are by lateral surface and medial surface composition, medial surface is arcwall face, lateral surface comprises mutually perpendicular vertical guide, arrange circular arc bent angle between two vertical guides, described first turning, the second turning, the 3rd turning and the 4th corner are provided with flow deflector;
The width of described first flow is identical with the width of stable section, and is greater than the width of water exit end;
The both sides of described diffuser are the vertical inclined-plane outwards expanded gradually, and the length of medial surface is less than the length of lateral surface;
Described water exit end and the second runner are provided with screen pack;
Described stable section is provided with honeycomb.
2. a kind of multisection type tank experiment annular water tank according to claim 1, it is characterized in that, described power section provides power by water pump.
3. a kind of multisection type tank experiment annular water tank according to claim 1, is characterized in that, the width of described water exit end is 2.5m.
4. a kind of multisection type tank experiment annular water tank according to claim 1, it is characterized in that, the flow deflector in described first turning is the first flow deflector, and described first flow deflector is set to two rows arranged side by side, and odd number is arranged, and every row amount is set to 9.
5. a kind of multisection type tank experiment annular water tank according to claim 1, is characterized in that, the flow deflector arranged in described second turning is the second flow deflector, and described second flow deflector odd number is arranged, and quantity is 11.
6. a kind of multisection type tank experiment annular water tank according to claim 1, is characterized in that, the flow deflector arranged in described 3rd turning is the 3rd flow deflector, and described 3rd flow deflector even number is arranged, and its quantity is 10.
7. a kind of multisection type tank experiment annular water tank according to claim 1, is characterized in that, the flow deflector arranged in described 4th turning is the 4th flow deflector, and it is two rows that described 4th flow deflector is set up in parallel, and the number of often arranging setting is even number, and quantity is 8.
8. a kind of multisection type tank experiment annular water tank according to claim 1, is characterized in that, the both sides of described contraction section are by evagination arcwall face and convex arcwall face composition, and evagination arcwall face and convex arcwall face are in the nature transition of flex point place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215557.7U CN204649381U (en) | 2015-04-10 | 2015-04-10 | A kind of multisection type tank experiment annular water tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520215557.7U CN204649381U (en) | 2015-04-10 | 2015-04-10 | A kind of multisection type tank experiment annular water tank |
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| CN204649381U true CN204649381U (en) | 2015-09-16 |
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| CN201520215557.7U Expired - Fee Related CN204649381U (en) | 2015-04-10 | 2015-04-10 | A kind of multisection type tank experiment annular water tank |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819826A (en) * | 2015-04-10 | 2015-08-05 | 浙江海洋学院 | Ship model performance testing water tank |
| CN106124161A (en) * | 2016-08-22 | 2016-11-16 | 天津大学 | A kind of tank carrying out for the hydraulic turbine testing |
| CN106568573A (en) * | 2016-11-09 | 2017-04-19 | 天津大学 | Propeller-driven vertical air cushion circulating water tank |
| CN109883886A (en) * | 2019-03-25 | 2019-06-14 | 山东建筑大学 | Continuous moving flat boundary layer experimental provision in a kind of power-law fluid slot |
-
2015
- 2015-04-10 CN CN201520215557.7U patent/CN204649381U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819826A (en) * | 2015-04-10 | 2015-08-05 | 浙江海洋学院 | Ship model performance testing water tank |
| CN106124161A (en) * | 2016-08-22 | 2016-11-16 | 天津大学 | A kind of tank carrying out for the hydraulic turbine testing |
| CN106568573A (en) * | 2016-11-09 | 2017-04-19 | 天津大学 | Propeller-driven vertical air cushion circulating water tank |
| CN106568573B (en) * | 2016-11-09 | 2019-04-09 | 天津大学 | A kind of vertical air cushion circulating water chennel of propeller driving |
| CN109883886A (en) * | 2019-03-25 | 2019-06-14 | 山东建筑大学 | Continuous moving flat boundary layer experimental provision in a kind of power-law fluid slot |
| CN109883886B (en) * | 2019-03-25 | 2023-10-24 | 山东建筑大学 | Experimental device for continuous movement of flat boundary layer in power law fluid tank |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| 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: 20150916 Termination date: 20170410 |