CN108801586A - Density stratification Multi-functional analog experimental trough device - Google Patents
Density stratification Multi-functional analog experimental trough device Download PDFInfo
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- CN108801586A CN108801586A CN201810417007.1A CN201810417007A CN108801586A CN 108801586 A CN108801586 A CN 108801586A CN 201810417007 A CN201810417007 A CN 201810417007A CN 108801586 A CN108801586 A CN 108801586A
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- main body
- sink
- salt
- functional analog
- stratified layer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Instructional Devices (AREA)
Abstract
The invention discloses a kind of density stratification Multi-functional analog experimental trough devices to include：Sink main body, sink main body bottom is provided with cooling coil, sink main body surrounding is provided with glass for infrared rays, it is provided with liquid crystal film on the inside of wherein at least one block of glass for infrared rays, it wherein is detachably connected thermally stratified layer device or salt decker on the upside of sink main body, upright bar is detachably set in sink main body, thermoelectricity occasionally conductivity test point is set in upright bar, thermally stratified layer device includes heating coil, and salt decker includes buoyant device.The present invention can obtain different temperature gradients by liquid depth in regulating thermostatic heating coil heating temperature, cooling coil cold water temperature and sink, realize stable thermal stratification, it is connected with each other between realizing modules holder by bolt and pin hole, it is easy to disassemble, it may be implemented switching of the thermally stratified layer method to salt top and bottom process, it can large scale flow performance under accurate recreation stratified environments.
Description
Technical field
The present invention relates to hydrodynamics dimensionless removal model experimental devices, and in particular to a kind of density stratification Multi-functional analog is real
Test water tank device.
Background technology
Haze phenomenon increasingly severe in recent years causes the attention of people, temperature when temperature inversion occurs in air
Warm air layer be higher than cold air layer, formed " inversion layer ", when this inversion layer shrouds in city overhead, earth surface it is big
Gas pollutant can be trapped in city overhead and be difficult to spread to cause seriously to pollute；Caused by thermal stratification in outdoor environment
Outside contamination build-up, using displaced type ventilation ward in thermal stratification can also cause pollutant be detained accumulation, work as pollutant
It rests on personnel to breathe at height, the risk of personnel's cross-infection will be increased；Seashore steam power plant discharged into seawater hot sewage and
The large scales flow phenomenon such as immersed body movement is also very common in industrial circle in stratified environments.Stratified environments are appreciated and understood
In flow phenomenon, help to improve the emission control technique of pollutant, deepen what people spread pollutant in indoor environment
Understanding grasps large scale fluid flow development rule.But current experimental provision carries out large-scale currents under modelling experiment stratified environments
Body flow phenomenon is difficult to carry out outfield experiments research, and one side experimental cost is high, and the limitation of another aspect measuring technique causes
Outfield experiments difficulty is larger.Chinese patent CN201710148474.4 discloses a kind of experimental tank and its test method, is used for
Flow-shape is observed, which, which can only be directed to fluid flowing in uniform environment, can not realize that fluid flows in density stratification environment
The research of characteristic.It is real without the simple and practicable modelling of large scale flow performance under energy accurate recreation stratified environments currently on the market
Experiment device.
Invention content
Goal of the invention：The purpose of the present invention is to provide a kind of density stratification Multi-functional analog experimental trough devices, solve
Currently without can be under accurate recreation stratified environments the problem of the simple and practicable removal model experimental device of large scale flow performance.
Technical solution：Density stratification Multi-functional analog experimental trough device of the present invention includes：Sink main body, it is described
Sink main body bottom is provided with cooling coil, and the sink main body surrounding is provided with glass for infrared rays, and wherein at least one piece thoroughly red
Outer glass inner side is provided with liquid crystal film, wherein being detachably connected thermally stratified layer device or salt layering dress on the upside of the sink main body
It sets, upright bar is detachably set in the sink main body, thermoelectricity occasionally conductivity test point, the thermally stratified layer are set in the upright bar
Device includes heating coil, and the salt decker includes buoyant device.
It is moved for the ease of device, operation is flexible, further includes bottom bracket, and pulley dress is provided on the downside of the bottom bracket
It sets.
For the ease of salt layered-scaffold, thermally stratified layer holder or slider bracket are connected to sink branch by bolt, pin hole
On frame, it is easy to implement the switching of two kinds of delamination test methods, can also realize static experiment condition and pulls the switching of operating mode, institute
It includes the main body up and down welded together to state sink main body, and the lower main body is hollow aluminium sheet and side offers discharge outlet, institute
It includes sink holder to state main body, and the sink holder surrounding is provided with hollow column, and pin hole is offered on the hollow column.
In order to facilitate using the underwater model in slide block movement towing channel, the fortune of immersed body in stratified environments is simulated
It is dynamic.The object moving apparatus includes slider bracket, and slider track is provided in the slider bracket, is set on the slider track
It is equipped with the sliding block slided along slider track.
In order to facilitate dismantling and fixing thermally stratified layer device, the thermally stratified layer device further includes thermally stratified layer holder, the heat point
Layer frame bottom is provided with pin, and pin hole is offered on the pin.
In order to facilitate the fixed salt decker of dismounting, the salt decker further includes salt layered-scaffold, the salt layering
Saline slot, described brine trench bottom connection flexible pipe one end are provided on the upside of holder, the hose other end connects buoyant device.
Operation principle：When thermally stratified layer is tested, heated at constant temperature in heating coil immersion water, cooling coil is into constant temperature cold water to water
Trench bottom constant temperature cools down, heating and cooling synchronous progress, and water can be shown by thermocouple in upright bar and liquid crystal film
Water temperature changes in slot.When salt layering experiment, the brine in saline slot is gradually smaller by density using buoyant device and hose
Brine inputs in sink, realizes that brine density is different at different depth.
Advantageous effect：The present invention passes through regulating thermostatic heating coil heating temperature, cooling coil cold water temperature and sink
Middle liquid depth can obtain different temperature gradients, realize stable thermal stratification, and each mould is realized by bolt and pin hole
It is connected with each other between block holder, thermally stratified layer holder after the dismounting of sink holder, sink holder and salt layered-scaffold bolt is connected
It connects, switching of the thermally stratified layer method to salt top and bottom process may be implemented, using glass for infrared rays, flow field is observed convenient for passing through infrared thermoviewer
Temperature change can observe the thermal stratification situation of liquid in sink using liquid crystal film in real time, sink holder in the present invention
It can realize that immersed body pulls after being connect with slider bracket bolt, bottom uses pulley gear, is moved convenient for device, operation spirit
It is living.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram when present invention carries out salt layering simulated experiment；
Fig. 3 is the structural schematic diagram when present invention carries out thermal stratification simulated experiment.
Specific implementation mode
As shown in Figs. 1-3, density stratification Multi-functional analog experimental trough device, including sink main body, bottom bracket 17, object
Body mobile device, thermally stratified layer device and salt decker, sink main body are welded on bottom bracket 17, and sink main body includes welding
Main body up and down together, lower main body 16 is hollow aluminium sheet and side offers discharge outlet, and liquid level gauge 12 is provided in lower main body,
Discharge outlet connects drainpipe 15, is provided with cooling coil 13 in hollow aluminium sheet interlayer, upper main body includes sink holder 11, sink branch
11 surrounding of frame is provided with glass for infrared rays 10, and the wherein at least interior surfaces of glass of one side attaches liquid crystal film 20, sink holder
11 surroundings are provided with hollow column, offer pin hole on hollow column, hollow column open up pin hole be convenient for by salt layered-scaffold,
Thermally stratified layer holder or slider bracket are connected to by bolt, pin hole on sink holder, and two kinds of delamination test methods are easy to implement
Switching, can also realize static experiment condition and pull operating mode switching.It is detachably connected by bolt on the upside of sink main body
Object moving apparatus, object moving apparatus include slider bracket 7, are provided with slider track 8 in slider bracket 7, on slider track 8
It is provided with the sliding block 6 slided along slider track, 7 surrounding of slider bracket is provided with pin, and pin hole, slider bracket 7 are provided on pin
It is connect with sink holder 11 by bolt, by the immersed body in lifting rope connection water channel, by sliding block 6 on slider track 8
Movement can draw immersed body, it may be convenient to utilize the underwater model in slide block movement towing channel, simulation layering ring
The movement of immersed body in border.When simulating thermojet movement in static layering environment, as long as slider bracket 7 is removed.
Thermally stratified layer device or salt decker are detachably connected by bolt on the upside of object moving apparatus, thermally stratified layer device includes heating dish
Pipe 4 and thermally stratified layer holder 5, heating coil 4 are arranged in thermally stratified layer holder 5, and 5 bottom of thermally stratified layer holder is provided with pin, pin
On offer pin hole, salt decker includes saline slot 1, salt layered-scaffold 3 and buoyant device 22, and the connection of 1 bottom of saline slot is soft
Pipe 2, hose connect buoyant device 22.Saline slot is welded with salt layered-scaffold；Saline slot bottom opening, will gradual diluted brine
It is transported in buoyant device 22 by hose 2, then flowed slowly into sink via buoyant device, in saline slot, brine is continuous
The floating of dilution and buoyant device so that brine density is different at different depth in sink, and 22 bottom of buoyant device is bubble
Foam material is made, and top is sponge；Sponge wrapping hose lower end so that brine is flowed out to slowly uniform around.In sink main body
It is threadedly coupled upright bar 21, saline slot 1 is arranged on salt layered-scaffold 3, and thermoelectricity occasionally conductivity test point, heat are arranged in upright bar 21
Galvanic couple one end connects data collecting instrument, can be changed with accurate recording water temperature, real convenient for acquisition thermally stratified layer along upright bar arrangement thermocouple
Test middle temperature gradient.Thermocouple is fixed in vertical upright bar convenient for control the distance between thermocouple, during avoiding thermometric
Thermocouple moves.When salt delamination test, conductivity test sampled point is set in upright bar 21.
When carrying out thermally stratified layer device experiment using the present invention, thermally stratified layer holder 5 is connect with sink holder 11 by bolt, is adjusted
Whole liquid level ensures that heated at constant temperature in 4 immersion water of heating coil, cooling coil 13 are cold to bottom of gullet constant temperature into constant temperature cold water
But, heating and cooling synchronous progress, water temperature in sink is shown by the thermocouple and liquid crystal film 20 arranged in upright bar 21
Change, Temperature Distribution is changed linearly with the depth of water in sink, passes through glass for infrared rays in the process and infrared thermoviewer observes flow field
Temperature change can observe the thermal stratification situation of liquid in sink in real time using liquid crystal film 20.It is tested in thermally stratified layer
In, change heating temperature THeatingAnd cooling temperature TIt is coolingAnd depth of water H, different temperature gradients can be obtained
When carrying out salt layering device experiment using the present invention, salt layered-scaffold 3 is connect with sink holder 11 by bolt, is mixed
The saltwater-storage of different densities is obtained after conjunction in saline slot, using buoyant device and hose by the gradually smaller brine of density
It inputs in sink, realizes that brine density is different at different depth, is finally reached linear change, is calculated by salt water conductivity meter
Brine density, since the salinity and density of water are at good linear relationship, the stratified flow being modulated by fresh water and brine
The density of body connects each other with salinity, and the salt angle value of density stratified fluid can be measured using conductivity measurement technique, into
And it can be converted into density value, conductivity test sample point can be evenly arranged in vertical upright bar, be surveyed using conductivity density
Amount system measures the density profile of stratified fluid.
Claims (7)
1. a kind of density stratification Multi-functional analog experimental trough device, which is characterized in that including：Sink main body, the sink master
Body bottom is provided with cooling coil (13), and the sink main body surrounding is provided with glass for infrared rays (10), and wherein at least one piece thoroughly
It is provided with liquid crystal film (20) on the inside of infrared glass, wherein being detachably connected thermally stratified layer device or salt on the upside of the sink main body
Decker, is detachably arranged upright bar (21) in the sink main body, setting thermoelectricity occasionally conductivity test point in the upright bar,
The thermally stratified layer device includes heating coil (4), and the salt decker includes buoyant device (22).
2. density stratification Multi-functional analog experimental trough device according to claim 1, which is characterized in that further include bottom
Holder (17), bottom bracket (17) downside are provided with pulley gear (18).
3. density stratification Multi-functional analog experimental trough device according to claim 1, which is characterized in that the sink master
Body includes the main body up and down welded together, and the lower main body (16) is that hollow aluminium sheet and side offer discharge outlet, it is described on
Main body includes sink holder (11), and sink holder (11) surrounding is provided with hollow column, is offered on the hollow column
Pin hole.
4. density stratification Multi-functional analog experimental trough device according to claim 1, which is characterized in that the sink master
Object moving apparatus is detachably set between body and thermally stratified layer device or salt decker.
5. density stratification Multi-functional analog experimental trough device according to claim 4, which is characterized in that the object moves
Dynamic device includes slider bracket (7), is provided with slider track (8) in the slider bracket (7), is set on the slider track (8)
It is equipped with the sliding block (6) slided along slider track (8).
6. density stratification Multi-functional analog experimental trough device according to claim 1, which is characterized in that the thermally stratified layer
Device further includes thermally stratified layer holder (5), and thermally stratified layer holder (5) bottom is provided with pin, and pin hole is offered on the pin.
7. density stratification Multi-functional analog experimental trough device according to claim 1, which is characterized in that the salt layering
Device further includes salt layered-scaffold (3), and saline slot (1) is provided on the upside of the salt layered-scaffold (3), and the brine trench bottom connects
Hose (2) one end is connect, hose (2) other end connects buoyant device (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417007.1A CN108801586A (en) | 2018-05-02 | 2018-05-02 | Density stratification Multi-functional analog experimental trough device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417007.1A CN108801586A (en) | 2018-05-02 | 2018-05-02 | Density stratification Multi-functional analog experimental trough device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108801586A true CN108801586A (en) | 2018-11-13 |
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ID=64093554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810417007.1A Pending CN108801586A (en) | 2018-05-02 | 2018-05-02 | Density stratification Multi-functional analog experimental trough device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354126A (en) * | 2021-11-30 | 2022-04-15 | 中国人民解放军国防科技大学 | Rapid liquid density layering method suitable for large layered water tank |
| CN114486172A (en) * | 2022-02-11 | 2022-05-13 | 上海交通大学 | Density temperature layering simulation experiment water tank device |
| CN116165361A (en) * | 2022-12-01 | 2023-05-26 | 哈尔滨工业大学 | Mixed type multistage automatic water salt water supply and drainage device and control method thereof |
| CN116165361B (en) * | 2022-12-01 | 2024-06-07 | 哈尔滨工业大学 | Mixed type multistage automatic water salt water supply and drainage device and control method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354126A (en) * | 2021-11-30 | 2022-04-15 | 中国人民解放军国防科技大学 | Rapid liquid density layering method suitable for large layered water tank |
| CN114486172A (en) * | 2022-02-11 | 2022-05-13 | 上海交通大学 | Density temperature layering simulation experiment water tank device |
| CN116165361A (en) * | 2022-12-01 | 2023-05-26 | 哈尔滨工业大学 | Mixed type multistage automatic water salt water supply and drainage device and control method thereof |
| CN116165361B (en) * | 2022-12-01 | 2024-06-07 | 哈尔滨工业大学 | Mixed type multistage automatic water salt water supply and drainage device and control method thereof |
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Application publication date: 20181113 |