CN106228885A - The demonstration equipment of salt wedge motion - Google Patents
The demonstration equipment of salt wedge motion Download PDFInfo
- Publication number
- CN106228885A CN106228885A CN201610514964.7A CN201610514964A CN106228885A CN 106228885 A CN106228885 A CN 106228885A CN 201610514964 A CN201610514964 A CN 201610514964A CN 106228885 A CN106228885 A CN 106228885A
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- district
- saline
- salt
- transition region
- fresh water
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- Educational Technology (AREA)
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Abstract
The present invention relates to the field of salt wedge motion, disclose the demonstration equipment of salt wedge motion, including storing the fresh water district of fresh water, storing the salt pool of saline and for demonstrating the demonstration district of salt wedge motion, the both sides in described demonstration district are formed with fresh water transition region and saline transition region towards external expansion；Described fresh water district is connected with described fresh water transition region by first passage, and described salt pool is connected with described saline transition region by second channel, is inserted with and cuts off the first flashboard that described demonstration district connects with saline transition region between described saline transition region with demonstration district.Compared with prior art, the present invention is by fresh water district, salt pool and demonstrates district through channel connection, during experimental demonstration, take out out the first flashboard, making saline be flowed into demonstration district, research and analyse salt wedge motion by observing the saline mixing situation with fresh water in demonstration district, this demonstration equipment not only can intactly demonstrate the process of salt wedge motion, and equipment volume is little, the most portable.
Description
Technical field
The present invention relates to the field of salt wedge motion, the especially demonstration equipment of salt wedge motion.
Background technology
In Hekou District, the fresh water come from upstream leaks into marine by Hekou District, and the sea water containing certain salinity is then with tide
Trace back, the most just there occurs saline and the mixing of fresh water and salt water encroachment problem.When runoff oncoming force tidal potential relatively by force in river course
When power is more weak, fresh water occupy upper strata because force density is less and releases to marine, and the saline that force density is bigger is positioned at bottom also
Trace back with tide and form salt wedge.
Salt wedge place of arrival not only directly affects city, two sides and the water intaking of industrial or agricultural and draining, but also can affect
The water quality of layer fresh water.Therefore, based on laboratory test and the data of prototype observation, research salt wedge length, form interface stable and
Mix significant.
In prior art, the equipment volume of research salt wedge motion is huge, and structure is complicated, the most portable, and sometimes needs
Will in the wild field survey could statistical data, be unfavorable for the demonstration of classroom instruction, be also unfavorable for laboratory research.
Summary of the invention
It is an object of the invention to provide the demonstration equipment of salt wedge motion, it is intended to solve prior art is studied salt wedge
The problem that the equipment of motion is inconvenient to carry.
The present invention is achieved in that the demonstration equipment that salt wedge moves, including storing the fresh water district of fresh water, storing saline
Salt pool and for demonstrate salt wedge motion demonstration district, the both sides in described demonstration district are formed with fresh water transition towards external expansion
District and saline transition region；Described fresh water district is connected with described fresh water transition region by first passage, and described salt pool passes through the
Two passages connect with described saline transition region, are inserted with the described demonstration district of partition and salt between described saline transition region and demonstration district
First flashboard of water transition region connection.
Further, the first energy dissipating filter it is provided with between described fresh water transition region and described demonstration district.
Further, the second energy dissipating filter, described second energy dissipating it are provided with between described saline transition region and described demonstration district
Filter is arranged parallel with described first flashboard.
Further, along described saline transition region to the bearing of trend in demonstration district, described second energy dissipating filter is arranged in institute
State the front of the first flashboard.
Further, in described saline transition region, activity is inserted with and is arranged side by side and adjustable-height with described first flashboard
The second flashboard, described first flashboard and the second flashboard lay respectively at the both sides of described second channel, and described second flashboard is by institute
Stating saline transition region and be divided into saline transition storage area and overflow area, described second channel connects described saline transition and stores
District.
Further, described overflow area connects a third channel, described third channel connect have the fresh water in saline and
Salt separate filter salt device, described filter salt device connects by product water channel between described fresh water district, described filter salt device and
Described salt pool is connected by filter salt passage.
Further, during described product water channel is built in described filter salt passage.
Further, being isolated by division board between described fresh water district and described salt pool, described product water channel is located in
In described division board.
Further, described fresh water transition region and saline transition region are distributed in the both sides in described demonstration district, and described light
Water transition region, demonstration district and saline transition region are linearly arranged.
Further, described first passage is respectively perpendicular to described fresh water district and described fresh water transition region and arranges, and described the
Two passages are respectively perpendicular to described salt pool and described saline transition region is arranged.
Compared with prior art, the demonstration equipment of the salt wedge motion that the present invention provides, by fresh water district, salt pool and drill
Show that fresh water transition region that the both sides in district are formed towards external expansion and saline transition region enter through first passage through channel connection, fresh water
Fresh water transition region and then arrival demonstration district, saline enters saline transition region through second channel, during experimental demonstration, takes out out partition demonstration
The first flashboard that district connects with saline transition region, makes the saline of saline transition region be flowed into demonstration district, is drilling by observing saline
Showing in district with the mixing situation of fresh water to research and analyse salt wedge motion, this demonstration equipment not only can intactly demonstrate saline
The process of wedge motion, and equipment volume is little, the most portable.
Accompanying drawing explanation
The schematic diagram of the demonstration equipment of the salt wedge motion that Fig. 1 provides for the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
Below in conjunction with specific embodiment, the realization of the present invention is described in detail.
With reference to shown in Fig. 1, for the preferred embodiment of present invention offer.
The demonstration equipment of the salt wedge motion that the present embodiment provides, is mainly used in class demonstration, and certainly, it uses not
Shall be limited only to class demonstration, it is also possible to be used in laboratory research etc..
The demonstration equipment of the salt wedge motion that the present invention provides, including storing the fresh water district 12 of fresh water, storing the salt of saline
Pool 13 and for demonstrate salt wedge motion demonstration district 11, demonstration district 11 both sides be formed with fresh water transition region towards external expansion
And saline transition region；Fresh water district 12 is connected with fresh water transition region by first passage 121, and second channel is passed through in salt pool 13
131 connect with saline transition region, are inserted with partition demonstration district 11 with saline transition region even between saline transition region and demonstration district 11
The first logical flashboard 141.
The fresh water in fresh water district 12 enters into fresh water transition region through first passage 121, then enters into demonstration from fresh water transition region
District 11, the saline in salt pool 13 flows into saline transition region through second channel 131, due between saline transition region and demonstration district 11
Being provided with the first flashboard 141, the connection of saline transition region with demonstration district 11 is cut off, so saline is with regard to accumulation by the first flashboard 141
In saline transition region.During demonstration, developer can be added in salt pool 13, facilitate look at saline in demonstration district 11
Mixing and the situation of intrusion.
When carrying out the lecture experiment of salt wedge motion, take out and drive the first flashboard being interposed between saline transition region and demonstration district 11
141, the saline in saline transition region without obstruction, will enter into demonstration district 11 in, demonstration district 11 in and mixing of fresh water,
Researching and analysing salt wedge motor process by observing saline mixing situation in fresh water, this demonstration equipment not only can be complete
Demonstrate the process of salt wedge motion wholely, and volume is little, the most portable, beneficially class demonstration.
In the present embodiment, the both sides in demonstration district 11 are formed with fresh water transition region and saline transition region, fresh water towards external expansion
Transition region and saline transition region are distributed in the both sides in demonstration district 11, and, fresh water transition region, demonstration district 11 and saline transition
District linearly arranges, linearly fresh water transition region, demonstration district 11 and the saline transition region arranged can truly simulate river
Salt wedge motion on mouth, because in Hekou District, the fresh water come from upstream leaks into marine by Hekou District, and containing certain salinity
Sea water then trace back with tide, the most just occur in that the phenomenon that salt wedge moves.
First passage 121 being respectively perpendicular to fresh water district 12 and fresh water transition region is arranged, second channel 131 is respectively perpendicular to
Salt pool 13 and saline transition region are arranged, relative to horizontal layout, such structure is arranged and is more beneficial for saving demonstration equipment
Shared space；And, the fresh water district 12 that vertical configuration is arranged connects with fresh water transition region, and salt pool 13 is with saline transition region even
Logical, when fresh water or saline enter transition region along vertical passage, current are very big at the impulse force of vertical direction, and demonstrate saline
Wedge moves, and current need the mild demonstration district 11 that enters could preferably simulate the mixing situation of saline and fresh water, so, hang down
Straight enter transition region current very big at the impulse force of vertical direction, relative, impulse force in the horizontal direction is the least, drills so entering
Show that the impulsive force in district 11 is the least, so can preferably carry out lecture experiment.
Owing to the flowing of current can produce certain impulse force, and excessive will the impact of impulse force demonstrates fresh water and saline in district 11
Mixing velocity so that salt wedge motion produce error, thus affect salt wedge motion experimental result, therefore, in fresh water mistake
Cross and be provided with the first energy dissipating filter 111 between district and demonstration district 11, fresh water first pass through before entering demonstration district 11 first energy dissipating every
Net 111 carries out energy dissipating so that the entrance demonstration district 11 that the fresh water through energy dissipating can be mild.
Being provided with the second energy dissipating filter 112 between saline transition region and demonstration district 11, entrance is drilled by the second energy dissipating filter 112
Show that the saline in district 11 carries out energy dissipating process, the second energy dissipating filter 112 is arranged parallel with the first flashboard 141 so that the first flashboard
After 141 take out out, the second energy dissipating dividing plate 112 can be fully achieved the saline energy dissipating entering demonstration district.
Owing to taking out out the moment of the first flashboard 141, saline can quickly pour into demonstration district 11, now owing to losing suddenly obstruction
Salt impact of water very big, in order to reduce test error, along saline transition region to demonstrating the bearing of trend in district 11, at the first flashboard
The second energy dissipating filter 112 is arranged in the front of 141, and after taking out out the first flashboard 141, saline is provided with before flowing into demonstration district 11
Second energy dissipating filter 112, allows saline enter back into demonstration district 11 after first passing through the second energy dissipating filter 112 energy dissipating.
In saline transition region, activity is inserted with the second flashboard 142 being arranged side by side with the first flashboard 141, the second flashboard
142 is height-adjustable movable flashboard, and the first flashboard 141 and the second flashboard 142 lay respectively at the both sides of second channel 131,
And be to be arranged side by side, by the second flashboard 142 arranged, saline transition region is divided into saline transition storage area 14 and overflow area
15, saline transition storage area 14 connects with second channel 131, and saline enters saline transition storage area 14 through second channel 131.
Specifically, before the first flashboard 141 is not taken out out, if the salt hypervolia of saline transition storage area 14, or examination
Test the amount needing to reduce salt wedge motion saline, by reducing the height of the second flashboard 142 so that saline transition storage area 14
Saline overflows along the upper edge of the second flashboard 142, and the saline of spilling enters overflow area 15；After the first flashboard 141 is taken out out, saline
The saline of transition storage area 14 communicates, at this moment with demonstration district 11, it is also possible to control to drill by regulating the height of the second flashboard 142
Show fresh water and the amount of saline mixing in district 11.
Overflow area 15 connects third channel 151, and third channel 151 connects filter salt device 152, and filter salt device 152 is used
In the fresh water in saline and salt are separated, connected by product water channel 154 between filter salt device 152 and fresh water district 12, filter salt dress
Putting 152 to be connected by filter salt passage 153 with salt pool 13, the saline of overflow area 15 enters filter salt device by third channel 151
152, after filtering the process of salt device 152, fresh water and saline are separated from each other, and respectively enter product water channel 154 and filter salt
In passage 153, fresh water flows to fresh water district 12 by product water channel 154, and saline enters salt pool 13 through filter salt passage 153, thus
Realize the recovery of fresh water and saline, can recycle.
Product water channel 154 is built in the space that can effectively save pipe arrangement in filter salt passage 153.
Isolated, by division board 132 by fresh water district 12 and salt by division board 132 between fresh water district 12 and salt pool 13
Pool 13 separates, and the product water channel 154 of filter salt device 152 is located in division board 132, meeting of flowing in the duct due to current
Drive the vibrations of pipeline, pipeline be located in division board 132, on the one hand can fix product water channel 154, reduce vibrations,
On the other hand can also reduce pipeline arrangement between fresh water district 12 and salt pool 13, save space.
In the present embodiment, in first passage 121, second channel 131 and third channel 151, it is both provided with impeller 16,
By the impeller 16 in first passage 121, the fresh water in fresh water district 12 is pushed to fresh water transition region；By second channel 131
Interior impeller 16, is pushed to saline transition region by the saline in salt pool 13；By the impeller 16 in third channel 151, will
The saline of overflow area 15 or saline mixture are pushed to filter in salt device 152.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (10)
1. salt wedge motion demonstration equipment, it is characterised in that include store fresh water fresh water district, store saline salt pool with
And for demonstrating the demonstration district of salt wedge motion, the both sides in described demonstration district are formed with fresh water transition region and saline towards external expansion
Transition region；Described fresh water district is connected with described fresh water transition region by first passage, and second channel and institute are passed through in described salt pool
State the connection of saline transition region, be inserted with the described demonstration district of partition between described saline transition region and demonstration district with saline transition region even
The first logical flashboard.
2. the demonstration equipment of salt wedge motion as claimed in claim 1, it is characterised in that described fresh water transition region is drilled with described
Show and between district, be provided with the first energy dissipating filter.
3. the demonstration equipment of salt wedge motion as claimed in claim 1, it is characterised in that described saline transition region is drilled with described
Showing and be provided with the second energy dissipating filter between district, described second energy dissipating filter is arranged parallel with described first flashboard.
4. the demonstration equipment of salt wedge motion as claimed in claim 3, it is characterised in that along described saline transition region to demonstration
The bearing of trend in district, described second energy dissipating filter is arranged in the front of described first flashboard.
5. the demonstration equipment of the salt wedge motion as described in any one of Claims 1-4, it is characterised in that described saline transition
In district, activity is inserted with and is arranged side by side with described first flashboard and height-adjustable second flashboard, described first flashboard and second
Flashboard lays respectively at the both sides of described second channel, and described saline transition region is divided into saline transition and stores by described second flashboard
District and overflow area, described second channel connects described saline transition storage area.
6. the demonstration equipment of salt wedge motion as claimed in claim 5, it is characterised in that described overflow area connects threeway
Road, described third channel connects the filter salt device fresh water in saline and salt separated, described filter salt device and described fresh water
Being connected by product water channel between district, described filter salt device is connected by filter salt passage with described salt pool.
7. the demonstration equipment of salt wedge motion as claimed in claim 6, it is characterised in that described product water channel is built in described
In filter salt passage.
8. the demonstration equipment of salt wedge motion as claimed in claim 7, it is characterised in that described fresh water district and described salt pool
Between isolated by division board, described product water channel is located in described division board.
9. the demonstration equipment of salt wedge motion as claimed in claim 1, it is characterised in that described fresh water transition region and saline
Transition region is distributed in the both sides in described demonstration district, and described fresh water transition region, demonstration district and the linearly cloth of saline transition region
Put.
10. the demonstration equipment of salt wedge motion as claimed in claim 9, it is characterised in that described first passage is respectively perpendicular
Arranging in described fresh water district and described fresh water transition region, described second channel is respectively perpendicular to described salt pool and described saline mistake
Cross district to arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610514964.7A CN106228885A (en) | 2016-06-30 | 2016-06-30 | The demonstration equipment of salt wedge motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610514964.7A CN106228885A (en) | 2016-06-30 | 2016-06-30 | The demonstration equipment of salt wedge motion |
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| Publication Number | Publication Date |
|---|---|
| CN106228885A true CN106228885A (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610514964.7A Pending CN106228885A (en) | 2016-06-30 | 2016-06-30 | The demonstration equipment of salt wedge motion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506882A (en) * | 2018-11-22 | 2019-03-22 | 浙江大学 | The experimental provision and method that a kind of slip boundary condition density current and salt wedge generate |
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