CN209722854U - A kind of construction density current test layer knot environment water device - Google Patents
A kind of construction density current test layer knot environment water device Download PDFInfo
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- CN209722854U CN209722854U CN201822236098.7U CN201822236098U CN209722854U CN 209722854 U CN209722854 U CN 209722854U CN 201822236098 U CN201822236098 U CN 201822236098U CN 209722854 U CN209722854 U CN 209722854U
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Abstract
The utility model discloses a kind of construction density currents to test layer knot environment water device.The device includes that A water tank, B water tank, sink, cross calibration line, gate and layer bear water body stream device out.Middle-end on sink length direction is equipped with drainage tube, passes through drainage tube and B water tank and miniature water tank connection；First drainage device is by the fluid conduction in A water tank to B water tank, B water tank passes through the second drainage device and miniature water tank connection, miniature water tank passes through guiding device and sink connection, fluid conduction in miniature water tank to sink, the miniature water tank and guiding device are constituted the layer and bear water body stream device out by guiding device.Utility model device is novel in design, and structure is simple, good integrity, and applicable operating condition is extensive, and test accuracy is high；It can simulate respectively and open a sluice gate formula density current flow process under the influence of different density current concentration, layer knot degree, bottom roughness and breaks.
Description
Technical field
The utility model relates to offshore engineering hydraulic model test fields, and in particular to a kind of construction density current test layer knot
Environment water device.
Background technique
Density current, also known as density current, because its density variation flows one of fluid along two intersection interfaces, and
There is a phenomenon where blending of overall importance with other fluids in flow process.Density current can be divided into two by its density variation reason
Class: component drives density current and particle to drive density current.Wherein, component driving density current can be divided into salinity difference and temperature again
The density current that difference is formed, it is common to have river mouth salt wedge, steam power plant's warm water discharge；Particle driving density current it is common have seabed turbidity current,
Reservoir density current etc..
Density current is because it is in the generality and importance of nature and engineering circles, to the development of the national economy, environmental protection etc.
Aspect has highly important effect.China is an ocean big country, and ocean area is vast, and many density current phenomenons occur in sea
In this foreign water environment.In order to which the experimental result of flume experiment further gears to actual circumstances, would have to consider environment water
Stratification phenomena, and then based on this, the various aspects of density current under layer knot environment are studied, such as coastal factory's pipeline
Blowdown, seabed turbidity current, coastal waters wetland flooding etc., these are all the difficult point and hot issue of density current research.
In the patent formula announced, the tank system of a variety of density current researchs has been given both at home and abroad, but for structure
It makes density current test layer and bears water body device and method and technology scheme also more lacks；Ongoing construction density current test layer is born water
There is certain limitations mostly for body device and method, insufficient to the density current research universality under the conditions of various, for example, construction
Bottom roughness or breaks lower layer bear water body the density CONSENSUS of environment water in same level it is lower.
Summary of the invention
The utility model overcomes deficiency in the prior art, provides a kind of construction density current test layer knot environment water
Device.
The test device systematic structure is simple, easy to operate；Different bottom roughness and breaks lower layer knot can be constructed
Water body, and carry out density current operating condition of test；Compensated for by the test device systematic simulated in previous traditional density current test it is different
The unicity of density current environment water is successfully realized the test device systematic simulated to density current under varying environment water body, and energy
Improve the reliability, accuracy and science to analysis of density current and research.
In order to solve the above technical problems, the utility model adopts the following technical solution:
The utility model includes that A water tank, B water tank, sink, cross calibration line, gate and layer bear water body stream device out.
Middle-end on sink length direction is equipped with drainage tube, passes through drainage tube and B water tank and miniature water tank connection；First drainage dress
It sets the fluid conduction in A water tank to B water tank, B water tank is miniature by the second drainage device and miniature water tank connection
Water tank is by guiding device and sink connection, and for guiding device by the fluid conduction in miniature water tank to sink, described is micro-
Type water tank and guiding device constitute the layer and bear water body stream device out.
The sink is internally provided with the gate of motor automatic control, the gate close to second drainage device,
The middle and upper part of sink is provided with cross calibration line, and the side and top of sink are provided with high-speed camera.
First drainage device and the second drainage device structure is identical, includes vacuum pump, valve switch and flow
Meter, one end of valve switch connect vacuum pump, and the other end connects flowmeter.
A water tank, B water tank and the sink is respectively arranged with pumping equipment.
Furtherly, the A water tank, B water tank wall surface are made using plastics, and the wall surface of sink and miniature water tank is adopted
Use acrylic board.
Furtherly, there are lock door fastening device in the gate two sides.
The guiding device and miniature water tank are integrated, and wall surface is all made of acrylic board, are that techonosphere bears water body
Go out stream part in device.
Furtherly, graduation mark is had on wall surface on the left of the sink.
The utility model has the beneficial effects that
1, utility model device is highly reliable, and structure is simple, good integrity, device design, production spend it is small, test at
This is cheap；Test process is simple and convenient, and test efficiency is high；Additional model bears water the influence during body to techonosphere and subtracts significantly
It is small, improve the consistency of environment water density in environment water same level.
2, utility model device uses replaceable flowmeter, by sophisticated testing condition and test process simplification, improves examination
The operability tested；The condition range that density current is tested under the environment water for different layers knot degree is expanded.
3, utility model device reduces ring for comparing previous point source guiding device using line source guiding device
Border water body is influenced in diffusion process by additional model, can guarantee the density of same level environment water to a certain extent
Consistency.The utility model Component composition flexible design, applicable operating condition is extensive, highly reliable.
4, utility model device records Density Currents process using high-speed camera in real time, and test accuracy is high, numerical value
Strong real-time is obtained, test process operation is succinct convenient.
5, the test process illustrative and operability of the utility model are obvious, and in combination with Particle Image Velocimetry
Technological means such as (Particle Image Velocimetry, PIV) carry out fining hydrodynamic course test, in conjunction with the present apparatus
Experimental design expansibility it is significant, and for relevant duration enter streaming mounted cast experimental technique exploitation and application provide it is beneficial
With reference to.
In conclusion this experimental rig is novel in design, structure is simple, and good integrity is highly reliable；Bulking block combination is set
Flexibly, applicable operating condition is extensive, especially for different additional model operating condition of test for meter；It is recorded in real time using high-speed camera different heavy
Flow motion process, data acquisition strong real-time, test accuracy height；The operation of this test process is succinct convenient, has test process effect
The advantages that rate is high, experimental design strong flexibility, referentiability is significant.
Detailed description of the invention
Fig. 1 is the schematic side view of the utility model.
Fig. 2 is the schematic top plan view of the utility model.
Fig. 3 is the gate schematic diagram of the utility model.
Fig. 4 is that the layer of the utility model bears water body stream device (miniature water tank and guiding device) partial enlargement three-dimensional out
Figure.
In figure: 1. vacuum pump, 2. first 5. valve switch of drainage device 3.A 4. blender of water tank, 6. flowmeter 7. second
8. gate of drainage device, 9. drainage tube, 10. miniature 11. guiding device of water tank, 12. sink 13. calibration, 14. gates of cross hairs are solid
Determine 15. drainpipe of device, 16. 18. graduation mark of water discharging valve switch 17.B water tank, 19. water (flow) direction.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.In addition, institute in the various embodiments of the present invention described below
The technical characteristic being related to can be combined with each other as long as they do not conflict with each other.
The present embodiment include water tank 1,7, sink 12, cross calibration line 13, gate 8, layer bear water body go out to flow device it is (miniature
Water tank 10 and guiding device 11)；Middle-end on 12 length direction of sink is equipped with drainage tube 9, by drainage tube respectively with water storage
10 connection of case B and miniature water tank；First drainage device passes through the fluid conduction in A water tank 3 to water tank B, water tank B
Second drainage device 7 and miniature 10 connection of water tank, guiding device 11 is by the fluid conduction in miniature water tank 10 to sink 12.
The sink is internally provided with the gate of motor automatic control, the gate close to second drainage device,
The middle and upper part of sink is provided with cross calibration line, and the side and top of sink are provided with high-speed camera.
First drainage device and the second drainage device structure is identical, includes vacuum pump 1, valve switch 5 and stream
Meter 6, one end of valve switch connect vacuum pump, and the other end connects flowmeter, concatenated between three by drainage tube.
A water tank, B water tank and the sink is respectively arranged with pumping equipment, and pumping equipment is by drainpipe 15 and drain valve
16 compositions, 11 one of the miniature water tank and guiding device.
In the present embodiment, the miniature water tank, guiding device and sink wall surface use acrylic board, and water tank is using modeling
Material, and graduation mark 18 is had in A, B water tank outside wall surface.Sink wall surface cross alignment is mutually perpendicular to, and horizontal line is 10
Cm, vertical line are 5 cm.There are lock door fastening device 14 in gate two sides, after gate is promoted to certain altitude, lock door fastening device
The automatic fixed gate of meeting makes gate remain stationary state, and experiment terminates the fixed device of late gate and discharges automatically, and gate can be free
Lifting.The gate being arranged in the sink is that controllable height lifts gate.
A kind of construction density current test layer knot environment water device needs to be placed in control environment during the test,
And two high-speed cameras from side view and are overlooked into shooting Density Currents process respectively.
The test method of above-mentioned apparatus is as follows
(1) formula density current test method is opened a sluice gate:
A. preparation process is tested
State is closed into gate holding, state is closed into gate holding, injects heavy fluid to the close A water tank of gate, i.e.,
On the right side of gate, to gate other side sink structure breaks environment (being put into 1 barrier model), A, B water storage are opened respectively
The vacuum pump in drainage device that case respectively connects, valve, and flowmeter is adjusted, B flowmeter registration is remained into A flowmeter and is shown
Several twice, fluid enter the sink other side by right angle drainage tube and guiding device, i.e., on the left of gate, layer bears water body and starts structure
Make, until the depth of water reaches 15cm, to gate on the right side of injection heavy fluid to 15cm,；Two video cameras are installed in specific position and are kept
Open state.
B. process is tested
Customized parameter is as follows during test: density current concentration, layer knot water layer knot degree, and bottom roughness degree, landform are prominent
The dyskinetic model variation such as change.Therefore test process can be divided into operating condition A, operating condition B, operating condition C and other operating conditions:
Operating condition A: density current concentration changes operating condition
State is closed in test early gate holding, does not install additional model, and gate holding is closed state, injected not on the right side of gate
With the heavy fluid of concentration, gate is lifted rapidly to 18cm, can be realized and open a sluice gate formula density current under different density current concentration conditions
Research on hydrodynamic.
Operating condition B: layer knot water layer knot degree variation
State is closed in gate holding, and A water tank injects various concentration heavy fluid, B water tank injected clear water, gate right side note
Enter certain density heavy fluid, lifts gate rapidly to 18cm, it is different under the conditions of different layers knot degree that environment water can be realized
Density current Research on hydrodynamic.
Operating condition C: dyskinetic model changes operating condition
It is soft that state, installation different type additional model, such as bottom laying different-grain diameter goose are closed in test early gate holding
Stone simulates different roughness bottom, triangle and the mutation of rectangle barrier artificially generated terrain etc.；A certain concentration is injected on the right side of gate
Heavy fluid, lift gate rapidly to 18cm, different bottom roughness can be realized, under shape sudden change conditions to open a sluice gate formula different heavy
State is closed in stream Research on hydrodynamic gate holding, installs the dyskinetic model of different type, including bottom is laid with different-grain diameter
Goose soft rock simulates different roughness bottom, triangle and the mutation of rectangle barrier artificially generated terrain；Injection is certain dense on the right side of gate
The heavy fluid of degree, lifts rapidly gate, and the density current hydrodynamic force different bottom roughness can be realized, under shape sudden change conditions is special
Journal of Sex Research.
Other operating conditions: couple variations operating condition
In test according to actual needs, by changing density current concentration, environment water layer knot degree, selection is installed different attached
Add types of models, realizes and open a sluice gate formula density current Research on hydrodynamic under density current concentration, additional model variation coupling condition.
During another above-mentioned test carries out, from side view and record Density Currents mistake is overlooked by two high-speed cameras
Journey records measurement data in real time.
C. instrument is arranged
Off-test splits each component, repairing experiment equipment.
D. data processing and inversion
The motion process video of density current is carried out finishing analysis by off-test, obtains required test result and knot with this
By.
Claims (5)
1. a kind of construction density current tests layer knot environment water device, including A water tank (3), B water tank (17), sink (12),
Cross calibration line (13), gate (8) and layer bear water body and go out to flow device；It is characterized by: the middle-end on sink (12) length direction
Equipped with drainage tube (9), pass through drainage tube (9) and B water tank (17) and miniature water tank (10) connection；First drainage device (2)
By the fluid conduction in A water tank (3) to B water tank (17), B water tank (17) passes through the second drainage device (7) and miniature storage
Water tank (10) connection, for miniature water tank (10) by guiding device (11) and sink (12) connection, guiding device (11) will be miniature
Fluid conduction to sink (12), the miniature water tank (10) and guiding device (11) in water tank (10) constitutes the layer
Body is born water to go out to flow device；
The sink (12) is internally provided with the gate (8) of motor automatic control, and the gate (8) is close to second drainage
Device, the middle and upper part of sink (12) are provided with cross calibration line (13), and the side and top of sink (12) are provided with high speed and take the photograph
Camera；
First drainage device and the second drainage device structure is identical, includes vacuum pump (1), valve switch (5) and stream
Meter (6), one end of valve switch connect vacuum pump, and the other end connects flowmeter；
A water tank (3), B water tank (17) and the sink (12) is respectively arranged with pumping equipment.
2. a kind of construction density current according to claim 1 tests layer knot environment water device, it is characterised in that: the A
Water tank (3), B water tank (17) wall surface are made using plastics, and the wall surface of sink (12) and miniature water tank (10) is using sub- gram
Power plate.
3. a kind of construction density current according to claim 1 tests layer knot environment water device, it is characterised in that: described
Gate (8) two sides have lock door fastening device (14).
4. a kind of construction density current according to claim 1 tests layer knot environment water device, it is characterised in that: described to lead
Stream device (11) and miniature water tank (10) are integrated, and wall surface is all made of acrylic board, is that techonosphere is born water in the device of body
Go out stream part.
5. a kind of construction density current according to claim 1 tests layer knot environment water device, it is characterised in that: described
Graduation mark (18) are had on wall surface on the left of sink (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201822236098.7U CN209722854U (en) | 2018-12-28 | 2018-12-28 | A kind of construction density current test layer knot environment water device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822236098.7U CN209722854U (en) | 2018-12-28 | 2018-12-28 | A kind of construction density current test layer knot environment water device |
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| CN209722854U true CN209722854U (en) | 2019-12-03 |
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ID=68678396
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680645A (en) * | 2018-12-28 | 2019-04-26 | 浙江大学 | A kind of construction density current test layer knot environment water device and method |
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2018
- 2018-12-28 CN CN201822236098.7U patent/CN209722854U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680645A (en) * | 2018-12-28 | 2019-04-26 | 浙江大学 | A kind of construction density current test layer knot environment water device and method |
| CN109680645B (en) * | 2018-12-28 | 2024-04-02 | 浙江大学 | Device and method for constructing different gravity flow test layer junction environment water body |
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