CN211555302U - Sediment release test device of simulation nature river course condition - Google Patents
Sediment release test device of simulation nature river course condition Download PDFInfo
- Publication number
- CN211555302U CN211555302U CN201922399320.XU CN201922399320U CN211555302U CN 211555302 U CN211555302 U CN 211555302U CN 201922399320 U CN201922399320 U CN 201922399320U CN 211555302 U CN211555302 U CN 211555302U
- Authority
- CN
- China
- Prior art keywords
- water
- transparent
- cylinder
- transparent water
- upper layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a bed mud release test device of simulation nature river course condition, include: the upper layer is a transparent water-filled cylinder, the lower layer is a transparent mud-filled cylinder and a transparent water distribution plate; wherein, the upper end of the upper layer transparent water-filled column body is provided with an upper opening, and the lower end is provided with a lower opening; a water inlet pipe is arranged in the middle of one side of the upper transparent water-filled column body, a water outlet pipe is arranged at the upper part of the other side of the upper transparent water-filled column body, and the position of the water inlet pipe is lower than that of the water outlet pipe; the bottom of the lower layer transparent mud cylinder is sealed, the upper end of the lower layer transparent mud cylinder is provided with an opening, the opening is butted with the lower end opening of the upper layer transparent water cylinder, and the edges of the lower layer transparent mud cylinder and the upper layer transparent water cylinder are connected through bolts; the transparent water distribution plate is vertically and fixedly arranged in the upper layer transparent water column body and is positioned in front of the water inlet pipe, a plurality of water distribution holes are uniformly arranged on the transparent water distribution plate, and the water distribution holes and the water inlet are in the same direction. The test device has simple structure and convenient use, and can simulate the release of the bottom mud under the condition of natural river water flow.
Description
Technical Field
The utility model relates to a test device of verification analysis pollution especially relates to a bed mud release test device of simulation nature river channel condition.
Background
As an important component of the river and lake ecosystem, the bottom mud is not only a central link of the circulation of nutrient substances in the river and lake, but also a main gathering bank of the nutrient substances. As a main reservoir for pollutants in rivers and lakes, the bottom mud not only can directly reflect the pollution history of water bodies, but also can release various pollutants to the overlying water bodies under certain conditions, and is an important secondary pollution source influencing the water quality of rivers and lakes. After point source pollution is effectively controlled, the bottom mud becomes one of the main sources of river and lake water body pollution. The bottom mud and the overlying water are continuously exchanged, and the concentration of pollutants dissolved in the water is influenced by the bottom mud to a great extent. When the bottom mud is not lifted, pollutants in the bottom mud are mainly diffused and decomposed from the surface layer bottom mud to the overlying water, the influence on the water quality is small, and the bottom mud is lifted once. Pollutants in the thicker-layer bottom mud can be released to a water body in a large quantity, and dissolved oxygen in the overlying water is consumed, so that the water quality is continuously deteriorated. As a dynamic balance of absorption and release exists between the bottom sediment and the lake water, once the content of the pollutants in the river and lake water is reduced, the release of the pollutants in the bottom sediment is increased, and the secondary pollution to the lake water is also increased.
Nitrogen and phosphorus are key influencing factors causing eutrophication of rivers and lakes. When the nitrogen content in the water body exceeds 0.2mg/L and the phosphorus content exceeds 0.02mg/L, the method can generate remarkable promotion effect on the eutrophication process of rivers and lakes. The bottom mud is an important component of a river and lake ecosystem, is a central link of nutrient circulation and is also a water-soil interface material (physical, chemical and biological) alternate zone. The river and lake bottom mud not only can indirectly reflect the pollution condition and hydrodynamic state of the water body, but also can release nutrient substances to the overlying water body under the restriction of external hydrodynamic factors, thereby influencing the water quality and eutrophication process of the river and lake.
The influence degree of nitrogen and phosphorus pollutants in the river and lake bottom sediment on the overlying water body is evaluated by using a bottom sediment release test, and the method is an effective way for accounting the endogenous nitrogen and phosphorus pollution. However, in the related experimental research and engineering practice at present, a test device for releasing bottom mud, which can better simulate the natural water body condition and can more intuitively observe and analyze the endogenous pollution release change, does not exist.
SUMMERY OF THE UTILITY MODEL
Based on the problem that prior art exists, the utility model aims at providing a sediment release test device of simulation nature river channel condition can solve and do not have the simulation nature water condition that can be better at present, can be more audio-visual observation and analysis endogenous pollution release change the test device's of release sediment problem.
The utility model aims at realizing through the following technical scheme:
the embodiment of the utility model provides a bed mud release test device of simulation nature river channel condition, include:
the upper layer is a transparent water-filled cylinder, the lower layer is a transparent mud-filled cylinder and a transparent water distribution plate; wherein the content of the first and second substances,
the upper end of the upper layer transparent water-filled column body is provided with an upper opening, and the lower end of the upper layer transparent water-filled column body is provided with a lower opening;
a water inlet pipe is arranged in the middle of one side of the upper transparent water-filled column body, a water outlet pipe is arranged at the upper part of the other side of the upper transparent water-filled column body, and the position of the water inlet pipe is lower than that of the water outlet pipe;
the bottom of the lower layer transparent mud cylinder is sealed, the upper end of the lower layer transparent mud cylinder is provided with an opening, the opening is butted with the lower end opening of the upper layer transparent water cylinder, and the edges of the opening and the upper layer transparent water cylinder are connected through bolts;
the transparent water distribution plate is vertically fixed in the upper transparent water column and is positioned in front of a water inlet of the water inlet pipe, a plurality of water distribution holes are uniformly formed in the transparent water distribution plate, and the water distribution holes and the water inlet are in the same direction.
By the above, the utility model provides a technical scheme can see out, the embodiment of the utility model provides a sediment release test device of simulation nature river channel condition, its beneficial effect is:
because the upper layer transparent cylinder structure and the lower layer transparent cylinder structure which are convenient to disassemble are adopted, the upper layer transparent water-filled cylinder body contains water, the lower layer transparent mud-filled cylinder body contains mud, and the two layers are respectively operated, the mechanical disturbance influence of mud and water addition at the beginning of a test can be furthest realized, and the change of the influence of the mud to the bottom along with the time can be more visually observed; the water inlet pipes and the water outlet pipes are respectively arranged on two sides of the upper layer transparent water-filled column body in a row, and can be externally connected with water pumps with different powers according to the actually measured natural water flow velocity on site, so that the horizontal flow velocity of natural water flow can be simulated in the upper layer transparent water-filled column body as much as possible; meanwhile, the water inlet pipe is lower in position, water can be fed by adopting mechanical pressure, the water outlet pipe is higher in position, natural overflow water can be used, and the water level difference between the water inlet pipe and the water outlet pipe can form vertical water body flow in the device, so that the hydrodynamic conditions of the natural water body are more approximately simulated from the horizontal direction and the vertical direction; the transparent water distribution plate is arranged, so that the inlet water of the water inlet pipe enters the upper transparent water-filled column body through the water distribution holes on the transparent water distribution plate, and the inlet water can enter in an approximately uniform water distribution mode in a vertical gradient under the condition that the water quantity reaches a certain quantity, thereby simulating the water flow direction of a natural river channel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating a sediment release test device for simulating natural river conditions according to an embodiment of the present invention;
fig. 2 is a schematic size diagram of a sediment release testing apparatus for simulating natural river conditions according to an embodiment of the present invention;
fig. 3 is a schematic view of a water distribution plate of a sediment release test device for simulating natural river conditions according to an embodiment of the present invention;
the parts corresponding to each mark in the figure are: 1-upper layer transparent water-filled cylinder; 2-edge flange; 3-a bolt; 4-the lower layer is transparent and filled with mud cylinders; 5-water inlet pipe; 6-transparent water distribution plate; 7-water distribution holes; and 8-water outlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the specific contents of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
As shown in fig. 1, the embodiment of the utility model provides a sediment release test device of simulation nature river channel condition is a device that carries out sediment nitrogen phosphorus pollutant release test under simulation nature water muddy water ratio and hydrodynamic force condition for the endogenous pollution of river lake sediment is including carrying out verification and analysis to the influence degree of overlying water:
the upper layer is a transparent water-filled cylinder, the lower layer is a transparent mud-filled cylinder and a transparent water distribution plate; wherein the content of the first and second substances,
the upper end of the upper layer transparent water-filled column body is provided with an upper opening, and the lower end of the upper layer transparent water-filled column body is provided with a lower opening;
a water inlet pipe is arranged in the middle of one side of the upper layer transparent water-filled column body, and a water outlet pipe is arranged at the upper part of the other side of the upper layer transparent water-filled column body;
the bottom of the lower layer transparent mud cylinder is sealed, the upper end of the lower layer transparent mud cylinder is provided with an opening, the opening is butted with the lower end opening of the upper layer transparent water cylinder, and the edges of the opening and the upper layer transparent water cylinder are connected through bolts;
the transparent water distribution plate is vertically fixed in the upper transparent water column and is positioned in front of a water inlet of the water inlet pipe, a plurality of water distribution holes are uniformly formed in the transparent water distribution plate, and the water distribution holes and the water inlet are in the same direction.
In the sediment release test device, the lower edge of the transparent water distribution plate is fixed to the lower edge of the upper layer transparent water-filled cylinder, the lower edge of the transparent water distribution plate and the lower edge of the upper layer transparent water-filled cylinder in the water inlet direction are sealed through the organic glass plate, and the transparent water distribution plate and the inner wall of the upper layer transparent water-filled cylinder form a water inlet space.
In the sediment release test device, the upper layer transparent sediment-containing water column body and the lower layer transparent sediment-containing column body are organic glass cylindrical structure bodies;
the lower opening of the upper layer transparent water-filled cylinder body is provided with a flange edge;
and the opening of the lower transparent mud cylinder is provided with a flange edge.
As shown in fig. 2, in the sediment release test device, the diameters of the upper transparent water-filled cylinder and the lower transparent mud-filled cylinder are both 25 cm;
the wall thickness of the upper layer transparent water-filled cylinder and the lower layer transparent mud-filled cylinder is 0.5cm
The height of the upper layer transparent water-filled cylinder is 36 cm;
the height of the lower layer transparent mud containing column is 9 cm.
In the sediment release test device, the aperture of the water inlet pipe of the upper transparent water-filled cylinder is 2 cm;
the aperture of the water outlet pipe of the upper layer transparent water-filled cylinder is 2cm, and the distance between the water outlet pipe and the upper edge of the upper layer transparent water-filled cylinder is 5 cm.
As shown in fig. 3, in the sediment release test device, the transparent water distribution plate has a specification of 15cm × 36cm and a thickness of 0.5 cm;
this transparent water distribution plate evenly is equipped with a plurality of water distribution holes and does: the plate surface is fully distributed with 2cm spaced water distribution holes with the aperture of 0.5 cm;
the mounting position of the transparent water distribution plate is 5cm away from the water inlet of the water inlet pipe.
The utility model discloses a sediment release test device can effectively simulate the sediment release test of natural water muddy water ratio and hydrodynamic force condition to can carry out visual analysis to the release law that sediment nitrogen phosphorus pollutes and the influence degree to the upper cover water under the condition that is close target natural water situation more, and then can more have corresponding provides data support and guide to the engineering measure that the endogenous pollution was administered.
The embodiments of the present invention will be described in further detail below.
The embodiment of the utility model provides a bed mud release test device of simulation nature river channel condition specifically includes:
(1) an upper layer of cylindrical main body and a lower layer of cylindrical main body which are made of organic glass materials, namely an upper layer of transparent water-filled cylinder and a lower layer of transparent mud-filled cylinder, wherein the diameters of the two layers of cylinders are 25cm, the wall thickness is 0.5cm, the height of the upper layer of transparent water-filled cylinder is 36cm, and the upper end and the lower end of the upper layer of transparent water-filled cylinder are open and are of a hollow structure; the lower layer of transparent mud cylinder is 9cm in height, the bottom of the lower layer of transparent mud cylinder is sealed, and the upper end opening of the lower layer of transparent mud cylinder is of a hollow structure. The upper layer of the transparent water-filled cylinder body and the lower layer of the transparent mud-filled cylinder body are of a separation structure and are connected through a flange with a screwed buckle, a structure convenient to disassemble is formed, and during use, the upper layer of the transparent water-filled cylinder body contains water and the lower layer of the transparent mud-filled cylinder body contains mud.
(2) The two opposite sides of the upper layer transparent water-filled column body are respectively provided with a water inlet pipe and a water outlet pipe, and the water pumps with different pipe diameters are externally connected according to the simulated target water body condition, so that the water body flowing is formed in the upper layer transparent water-filled column body, and the hydrodynamic condition is simulated. The height of the water inlet pipe is in the middle of the upper transparent water-filled column, the water outlet pipe is positioned on the upper part of the upper transparent water-filled column, the distance between the water inlet pipe and the water outlet pipe is 5cm, and the aperture of the water inlet pipe and the aperture of the water outlet pipe are both 2 cm.
(3) A transparent water distribution plate is arranged in the upper layer transparent water-filled column body and corresponds to one side of the water inlet pipe, and is made of organic glass materials; the transparent water distribution plate has the specification of 15cm multiplied by 36cm and the thickness of 0.5 cm; the plate surface is fully distributed with a plurality of water distribution holes with the aperture of 0.5cm and the interval of 2 cm; the mounting position of the transparent water distribution plate is 5cm away from the water inlet of the water inlet pipe, and the water distribution holes are in the same direction with the water inlet; the lower edge of the transparent water distribution plate is fixed on the lower edge of the upper transparent water-filled cylinder, the lower edge of the transparent water distribution plate and the lower edge of the upper transparent water-filled cylinder in the water inlet direction are sealed by an organic glass plate, so that a water inlet space is formed between the transparent water distribution plate and the inner wall of the upper transparent water-filled cylinder, and water can conveniently and uniformly enter the upper transparent water-filled cylinder through a plurality of water distribution holes of the transparent water distribution plate.
The utility model discloses a sediment release test device, owing to adopt be the upper and lower layering transparent construction of convenient dismantlement, lower floor's dress mud, the upper strata adds water, and two-layer operation respectively, the mechanical disturbance influence that muddy water was added when the experiment that can the at utmost begins, the change of sediment influence along with time can be more audio-visual observation simultaneously.
The water inlet pipes and the water outlet pipes are respectively arranged on two sides of the upper transparent water column body, and can be externally connected with water pumps with different powers according to the natural water flow rate actually measured on site, so that the horizontal flow rate of the natural water flow can be simulated in the device as much as possible. Meanwhile, the water inlet pipe is lower in position and can adopt mechanical pressure for water inlet, the water outlet pipe is higher in position and can adopt natural overflow for water outlet, and the water level difference of the water inlet pipe and the water outlet pipe can form vertical water body flow in the device. Therefore, the hydrodynamic conditions of the natural water body are more approximately simulated from the horizontal direction and the vertical direction.
The lower part of the transparent water distribution plate is sealed, so that the inlet water of the water inlet can only enter the upper transparent water-filled cylinder through the water distribution holes on the transparent water distribution plate, and the inlet water can enter the upper transparent water-filled cylinder in an approximately uniform water distribution mode in a vertical gradient under the condition that the water quantity reaches a certain quantity, thereby simulating the water flow direction of a natural river channel.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a bed mud release test device of simulation nature river course condition which characterized in that includes:
the upper layer is a transparent water-filled cylinder, the lower layer is a transparent mud-filled cylinder and a transparent water distribution plate; wherein the content of the first and second substances,
the upper end of the upper layer transparent water-filled column body is provided with an upper opening, and the lower end of the upper layer transparent water-filled column body is provided with a lower opening;
a water inlet pipe is arranged in the middle of one side of the upper transparent water-filled column body, a water outlet pipe is arranged at the upper part of the other side of the upper transparent water-filled column body, and the position of the water inlet pipe is lower than that of the water outlet pipe;
the bottom of the lower layer transparent mud cylinder is sealed, the upper end of the lower layer transparent mud cylinder is provided with an opening, the opening is butted with the lower end opening of the upper layer transparent water cylinder, and the edges of the opening and the upper layer transparent water cylinder are connected through bolts;
the transparent water distribution plate is vertically fixed in the upper transparent water column and is positioned in front of a water inlet of the water inlet pipe, a plurality of water distribution holes are uniformly formed in the transparent water distribution plate, and the water distribution holes and the water inlet are in the same direction.
2. The sediment release test device of the simulation natural river condition of claim 1, wherein the lower edge of the transparent water distribution plate is fixed on the lower edge of the upper layer transparent water-filled cylinder, the lower edge of the transparent water distribution plate and the lower edge of the upper layer transparent water-filled cylinder in the water inlet direction are sealed through an organic glass plate, and the transparent water distribution plate and the inner wall of the upper layer transparent water-filled cylinder form a water inlet space.
3. The sediment release test device for simulating natural river conditions according to claim 1, wherein the upper layer transparent water-filled cylinder and the lower layer transparent mud-filled cylinder are organic glass cylindrical structures;
the lower opening of the upper layer transparent water-filled cylinder body is provided with a flange edge;
and the opening of the lower transparent mud cylinder is provided with a flange edge.
4. The sediment release test device for simulating natural river channel conditions according to any one of claims 1 to 3, wherein the diameters of the upper layer transparent water-filled cylinder and the lower layer transparent mud-filled cylinder are both 25 cm;
the wall thickness of the upper layer transparent water-filled cylinder and the lower layer transparent mud-filled cylinder is 0.5cm
The height of the upper layer transparent water-filled cylinder is 36 cm;
the height of the lower layer transparent mud containing column is 9 cm.
5. The sediment release test device for simulating natural river channel conditions according to any one of claims 1 to 3, wherein the aperture of the water inlet pipe of the upper transparent water-filled cylinder is 2 cm;
the aperture of the water outlet pipe of the upper layer transparent water-filled cylinder is 2cm, and the distance between the water outlet pipe and the upper edge of the upper layer transparent water-filled cylinder is 5 cm.
6. The sediment release test device for simulating natural river channel conditions according to claim 1, wherein the specification of the transparent water distribution plate is 15cm x 36cm, and the thickness is 0.5 cm;
this transparent water distribution plate evenly is equipped with a plurality of water distribution holes and does: the plate surface is fully distributed with 2cm spaced water distribution holes with the aperture of 0.5 cm;
the mounting position of the transparent water distribution plate is 5cm away from the water inlet of the water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922399320.XU CN211555302U (en) | 2019-12-27 | 2019-12-27 | Sediment release test device of simulation nature river course condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922399320.XU CN211555302U (en) | 2019-12-27 | 2019-12-27 | Sediment release test device of simulation nature river course condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211555302U true CN211555302U (en) | 2020-09-22 |
Family
ID=72510426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922399320.XU Active CN211555302U (en) | 2019-12-27 | 2019-12-27 | Sediment release test device of simulation nature river course condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211555302U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098633A (en) * | 2020-09-28 | 2020-12-18 | 上海勘测设计研究院有限公司 | Sediment pollutant release rate survey device |
| CN112198293A (en) * | 2020-10-09 | 2021-01-08 | 中国环境科学研究院 | Ammonia nitrogen release research device for black and odorous water body |
-
2019
- 2019-12-27 CN CN201922399320.XU patent/CN211555302U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098633A (en) * | 2020-09-28 | 2020-12-18 | 上海勘测设计研究院有限公司 | Sediment pollutant release rate survey device |
| CN112098633B (en) * | 2020-09-28 | 2022-09-30 | 上海勘测设计研究院有限公司 | Sediment pollutant release rate survey device |
| CN112198293A (en) * | 2020-10-09 | 2021-01-08 | 中国环境科学研究院 | Ammonia nitrogen release research device for black and odorous water body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103994951B (en) | The analogue means of environmental contaminants Transport And Transformation in underground water different water cut layer | |
| CN103630659B (en) | Simulation test device and simulation test method for in-situ chemical and biological remediation of underground water | |
| CN211555302U (en) | Sediment release test device of simulation nature river course condition | |
| CN106908368B (en) | Rainfall simulation earth pillar infiltration test system | |
| CN108318386B (en) | Multifunctional simulation experiment device and method for migration and infiltration rules of river pollutants | |
| CN107389896B (en) | Top layer bed material pollutant adsorption/desorption characteristic measuring device and its application method | |
| CN109668809A (en) | Valley plain band accumulation of soluble substances and Migration Simulation experimental provision and method | |
| CN101477106A (en) | Physical analog test apparatus for canal pollutant transmission under temperature-hydraulic coupling action | |
| CN105862933B (en) | The foundation model experimental rig of dynamic artesian water effect | |
| CN103364473A (en) | Device and method for study on release of heavy metals and/or phosphate in sediments | |
| CN107192811A (en) | A kind of latent erosion visual measuring device of level of large deformation totally-enclosed | |
| CN102902860A (en) | Workplace occupational exposure simulation analysis method based on computational fluid dynamics (CFD) technology | |
| CN104597218B (en) | Groundwater dynamic simulation experiment platform | |
| CN106781962B (en) | A kind of heterogeneous isotropic aquifer seepage action of ground water rule simulation test device | |
| Shu et al. | Laboratory and numerical simulations of spatio-temporal variability of water exchange between the fissures and conduits in a karstic aquifer | |
| CN204514909U (en) | A kind of water supply network simulation of water quality test unit | |
| CN107036960A (en) | Retention release test three-dimensional simulation system and its test method of a kind of pollutant in aeration zone | |
| CN202929029U (en) | Simulation test device for in-situ chemical and biological remediation of underground water | |
| CN108614091A (en) | A kind of heavy metal-polluted soil Leaching Experiments system | |
| CN205506572U (en) | Ground model test device that simulation artesian head goes up and down | |
| CN206532507U (en) | A kind of heterogeneous isotropic aquifer seepage action of ground water rule simulation testing instrument | |
| CN112444472A (en) | Experimental method for simulating gas phase blockage in groundwater recharge process | |
| CN104818687A (en) | Dam break analog simulation experiment set of tailings impoundment under action of simulated dynamic loading | |
| CN109187286B (en) | Device for simulating pollutant migration rule under soil dry-wet alternation condition and simulation method thereof | |
| CN204589911U (en) | Tailings Dam dam break analog simulation experimental device under simulation dynamic load function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |