CN202383129U - Generation device for simulating sediment pollution release process of aquatic plant - Google Patents
Generation device for simulating sediment pollution release process of aquatic plant Download PDFInfo
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- CN202383129U CN202383129U CN2011205642270U CN201120564227U CN202383129U CN 202383129 U CN202383129 U CN 202383129U CN 2011205642270 U CN2011205642270 U CN 2011205642270U CN 201120564227 U CN201120564227 U CN 201120564227U CN 202383129 U CN202383129 U CN 202383129U
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Abstract
The utility model discloses a generation device for simulating the sediment pollution release process of an aquatic plant and belongs to the field of environmental protection. The generation device comprises an organic glass annular water tank, a water flow propulsion power system and a flow velocity measurement fixing device, wherein the dimensional of the water tank is determined according to test requirements; the cross section of the water tank is rectangular; the height of the water tank is 50 to 100 cm; a length-width ratio of a straightway part is not less than 4; the inner diameter of a curve part is not less than 10 cm; a sediment of which the thickness is 15 cm is laid at the bottom of the water tank; the aquatic plant is planted on the sediment, and a natural water body in which the aquatic plant grows is simulated; a rotary disk which is arranged on the surface of the water body is driven by an adjustable motor to drive the water body in the tank to flow, and perturbation of a wind-driven current which is formed in different wind fields by the natural water body on the sediment at the bottom of the water tank is simulated; and a flow velocity measuring instrument is accurately positioned by the flow velocity measurement fixing device, and the water flow movement condition of the cross section of the water tank, particularly a water interface of the sediment, is observed. The device can well simulate the sediment pollution release process of the aquatic plant in a lake under the action of the wind fields with different strengths.
Description
Technical field
The present invention relates to environmental protection technical field; Specifically relate to the lab simulation hydrophyte to sediment pollution dispose procedure generating means and method of application thereof; Be applicable under the effect of varying strength wind field; The simulation of the shallow lake sediment pollution dispose procedure of aquatic plants growth is arranged, and is the experimental facilities that is used for water ecological setting research.
Background technology
Water body deposit is the important component part of water ecosystem, is the various nutrients of water body, the remittance and the source of pollutant.The deposition of input of long-term external source and hydrobiont residue, in the sediment often enrichment nutriment, heavy metal and other polluters such as great number of organic matters, N, P.The sediment water termination is one of most important interface in the shallow lake, and water disturbance can cause that surface deposit suspends again, and then causes the release of surface deposit polluter, and then causes variation of overlying water water quality, water body illuminance, biomass etc.The device of the sediment pollution release of the no aquatic plants growth of simulation is more at present.And in actual conditions, various hydrophyte in river course, lake marginal growth, and this part regional sediment but exactly exists contaminated especially severe, pollute the big characteristic of burst size.Hydrophyte can not only absorb the nutrients such as nitrogen phosphorus in the water body, can also play the wave that disappears, and reduces the effect that sediment suspends again, and research is under hydrodynamism, and hydrophyte is significant to the influence of sediment pollution dispose procedure.
The research hydrophyte is mainly adopted field inspection and these two class methods of lab simulation to the influence that sediment pollution discharges at present.Field inspection is subject to uncontrollable factors such as landscape, is difficult to study under controlled conditions, also need expend bigger man power and material, is difficult to promote; And observation data is limited, is difficult to bring comprehensive support to theoretical analysis, has limited the theory lifting of people to phenomenon research, therefore is used for on-site investigation more.At present more is to utilize the lab simulation method, and the key of lab simulation is to provide the external motive device and the device of simulating the natural water body that aquatic plants growth is arranged of disturbance simulation.
The common method of simulation external impetus disturbance has oscillatory type, piston type, rotary propeller type, makes Bo Shi and blowing-type at present.(1) oscillatory type is a certain amount of S & W appearance of in container, packing into, is put in the oscillator, and the acting force that is produced by vibration makes sediment that release take place to pollute, with the size of oscillation frequency simulation wind speed; (2) piston type is to use the piston action of scalable amplitude and frequency in water body, causes the disturbance to the sediment top layer to produce pollution release; (3) rotary propeller type is through making sediment in certain intensity release take place to pollute perpendicular to the water surface or with the angled oar disturbance in water of revolving of the water surface; (4) making wave agitation sediment that the ripple formula utilizes wave making machine to produce makes it take place to pollute and discharge; (5) blowing-type is to unite through many fan blowers to use the different wind of simulation to put on the come-up water body by force, makes its generation water movement and then causes sediment pollution to discharge.It is thus clear that oscillatory type directly forces in water body and sediment simultaneously, producing water sports with wind disturbance in the natural water body and then acting on the mechanism that sediment causes sediment pollution to discharge has big gap.Piston type adopts the pump mode of direct disturbance water body of piston in the water to simulate wind field to water body and sedimental disturbance, this obviously and actual conditions differ greatly.Rotary propeller type is divided into barrel formula and water tank type again in practical application, but is revolved the limitation of the application of force of oar own, and the water body discontinuity can't be simulated natural water body and receive formed fluidised form of wind disturbance and sediment pollution dispose procedure.Therefore; Though these three kinds of method systems are little, method is simple, is easy to controlled condition and can organizes parallel more; But the mechanism that external disturbance that produces and natural water body receive wind disturbance to produce sediment pollution release differs greatly, and all can not simulate the sediment pollution dispose procedure of natural water body preferably.Though it is approaching with actual conditions to make Bo Shi and blowing-type, wave maker complicacy and expense are too big.Use fan blower simulation energetic disturbance, the position of blast orifice and be difficult to accurate adjustment with the angle of overlying water face is difficult for guaranteeing that the tank flow field is even, and blowing-type must add a cover at the top so that blower system to be installed, and hydrophyte can't grow.
The common method of simulation natural water body has three kinds of triangular flask formula, straight pipe type and water tank types.In the method for simulation natural water body, the triangular flask formula is that sediment is put into the triangular flask that suitable quantity of water is housed, and vibration makes sediment under control intensity, pollute release under oscillator; Straight pipe type is that sediment is put into straight tube bottom, and overlying water with piston or revolve oar and cause water disturbance, thereby causes the energetic disturbance to the sediment top layer, produces to pollute to discharge; Water tank type is that the in-situ deposition thing is laid in the indoor water tank bottom, causes water disturbance with wave making machine or fan blower, discharges thereby make sediment take place to pollute.Triangular flask formula and straight pipe type system are too small, can not reflect that the flow field situation of water body under the wind field disturbance and river bottom mud pollute the actual conditions that discharge under hydrodynamic condition, and can't planting aquatic plants.Water tank type simulation natural water body and actual conditions are approaching, and the water tank type device is divided into straight trough and annular water tank at present.Straight trough need be provided with the circulation that water storage tank and reflux are realized water, unavoidably receives the disturbance of intake pump, and requires straight trough that enough length is arranged, and these all are difficult to real simulation disturbance deposit thing and pollute and discharge.Using annular water tank is to be converted into time scale to the length of straight trough, and with the tank of simulation endless, because the closure of its water movement, the physical boundary of not effluenting, becoming a mandarin can overcome the above-mentioned shortcoming of straight trough, thereby is able to more application.Annular water tank comprises concentric circles annular tank and racetrack annular water tank again.The ring-like tank of concentric circles is driven by upper and lower dish or the rotation of inside and outside wall; Move toward one another through installing itself produces tangential force; And then make water body produce the flow field motion; Structure is comparatively complicated, and centrifugal force of producing of its rotation is easy to form radially phenomenon such as skewness of horizontal secondary flow and flow velocity, makes the research of sediment pollution dispose procedure become more complicated.In addition; In the lake of aquatic plants growth is arranged; Hydrophyte discharges sediment pollution and has very big influence; And present lab simulation method still fails to realize the simulation to sediment pollution release in the water body that various aquatic plants growths are arranged, and satisfies the research demand of relation between the release of wind field disturbance hydrophyte flow field structure sediment pollution.
Summary of the invention
The objective of the invention is to defective to present analogue means existence; A kind of generating means and method of application thereof of simulating hydrophyte to the sediment pollution dispose procedure is provided; This device can have under the prerequisite of aquatic plants growth, and simulation varying strength wind field disturbance water surface condition deposit thing pollutes the process that discharges.Carry out the exact acquisition of different depth water body example and the mensuration of different depth flow velocity, to satisfy the research demand of relation between the release of research wind field disturbance hydrophyte flow field structure sediment pollution.
Technical solution of the present invention is following:
A kind of generating means of simulating hydrophyte to the sediment pollution dispose procedure; This apparatus structure is by a racetrack annular water tank; Current propulsion system and fluid-velocity survey stationary installation three parts constitute, and wherein the organic glass annular water tank is connected institute by annular water tank cell body 2 and forms with base 1, and annular water tank cell body 2 is made up of annular water tank outer wall 10 and 9 of inwalls; Two current propulsion systems are installed in the bend place at sink body 2 two ends respectively; It comprises plate-spinning 4, motor 5 and adjustable type frequency conversion controller 6, and wherein plate-spinning 4 is connected with motor 5 through rotating shaft 20, and rotating shaft 20 is placed in the groove on inwall 9 and outer wall 10 tops of annular water tank cell body 2; One end is connected in the bearing 23 that is fixed on inwall; The other end is connected in motor 5 movements that are fixed on outer wall, and adjustable type frequency conversion controller 6 is connected with motor 5, the output power of control motor; Flow velocity measures the inwall 9 and outer wall 10 tops of stationary installation frame in annular water tank cell body 2; It comprises vertical scale 13, vertically scale 14, knotmeter geometrical clamp 15, rotary screw 16, vertically slide rail 17 and fixed base plate 18, and wherein fixed base plate 18 crossbearers are opened a rectangle slotted hole in the center of fixed base plate 18 on the inwall 9 of sink body 2 and outer wall 10; Identical with the width of inboard wall of cistern to outer wall; Along vertical limit of slotted hole vertical slide rail 17 is installed, in the perpendicular bisector position of slide rail rotary screw 16 is installed, the screw rod bottom is equipped with roller and is connected with slide rail; Knotmeter geometrical clamp 15 is installed on rotary screw, and slide rail and screw rod all are furnished with scale; Knotmeter measuring staff 11 is fixed on the knotmeter geometrical clamp 15, and knotmeter probe 12 is equipped with in the measuring staff lower end, the sediment that collects 7 is tiled in bottom of gullet, planting aquatic plants on sediment.
Described annular water tank outer wall 10 centers are provided with 6～11 band valve sample taps 3 from top to bottom, sample tap diameter 0.4cm, and pitch of holes is decided according to test sampling needs; And a band valve freeing port 19, orifice diameter 0.4cm be set respectively in the lower end, both sides.
Plate-spinning 4 is made up of the circular video disc 21 of 14 wide 1cm, diameter 20cm in the described current propulsion system, and video disc 21 is fixed in the rotating shaft 20 of passing the video disc center of circle side by side, with 1cm interval equidistant placement; Video disc quantity is looked the tank width and is decided, and is adhesive with 32 strip plates 22 on the side of every video disc, plate 22 thick 0.3cm; Wide 0.3cm; Long 5cm is uniformly-spaced radial distribution, to increase video disc 21 and water body contact area; Said video disc 21 and plate 22 are all used poly (methyl methacrylate) plate system.
A kind of generating means of simulating hydrophyte to the sediment pollution dispose procedure, its method of application step is following:
1. will move into annular water tank cell body 2 bottoms by thick open-air undisturbed sediment 7 according to the 15cm that experimental design is chosen; The former water of slow injection field acquisition or tap water are as overlying water 8 in annular water tank cell body 2; The depth of water is 30～80cm, the required hydrophyte of sediment 7 top planting experiments;
2. with the inwall 9 and outer wall 10 tops of fluid-velocity survey stationary installation frame in annular water tank cell body 2; Knotmeter measuring staff 11 is fixed on the knotmeter geometrical clamp 15; Stretch in the annular water tank body 2; Make knotmeter probe 12 overlying water 8 that submerges, move the knotmeter probe, pop one's head in through vertical scale 13 and vertical 14 pairs of knotmeters of scale and precisely locate through rotary screw 16 and vertical slide rail 17;
3. the power supply that connects two current propulsion systems respectively starts motor 5 synchronously and drives plate-spinning 4, makes the 4 equidirectional rotations of two plate-spinnings; Form steady flow condition in the tank, according to the knotmeter observed result, through adjustable type frequency conversion controller 6 adjustment motors 5 rotating speeds; Change water surface speed to reach the experimental design requirement; Simulate different wind and put on the water disturbance that overlying water 8 causes by force, under hydrodynamism, the sediment 7 of bottom of gullet takes place to pollute and discharges;
4. under the condition of keeping plate-spinning 4 stabilizations of speed, open the valve of band valve sample tap 3 from top to bottom successively and gather overlying water appearance respectively;
5. according to the experiment needs, after overlying water appearance finishing collecting, the valve that can open band valve freeing port 19 drains overlying water in the groove, gathers sediment sample and hydrophyte sample;
6. according to the experiment needs, overlying water appearance, sediment sample and the hydrophyte sample gathered are carried out the analysis of physical and chemical index and Biological indicators.
Advantage of the present invention and effect are: (1) utilizes plate-spinning rotation drive water surface to flow with simulation wind current and then the release of simulation sediment pollution, more receives wind disturbance to cause the mechanism of sediment pollution release near water body in lake than methods such as oscillatory type, piston type, rotary propeller types; Form steady flow condition in the tank, than methods such as triangular flask formula, straight pipe types more near the actual flow field situation of lake under the wind field disturbance.(2) through changing motor speed, the plate size is come flow rate of water flow in the regulating tank on rotating disk underwater penetration and the plate-spinning video disc, with the hydrodynamic force disturbance of dummy activity in the varying strength wind field generation of water surface.(3) surface opens wide, and whole tank cell body adopts transparent plexiglass plate, and daylighting is good, is easy to plantation and the growth of the hydrophyte of various forms in the tank, and being used for lab simulation has the lake sediment pollution of aquatic plants growth to discharge.(4) surface opens wide; Can insert knotmeter and various water quality on-line monitoring instrument device; Be implemented in the sediment pollution dispose procedure accurately the measuring in real time of overlying water flow field and each physical and chemical indexes, the knotmeter stationary installation can satisfy that arbitrary cross-section is accurately located, the fluid-velocity survey requirement of probe stationary.(5) this device water body sampling precision is high, and metastable pollution release conditions when steady flow condition has guaranteed sample collecting in the groove is provided with the collection that band valve sample tap can be realized the different depth water sample from top to bottom.(6) the inside and outside wall sidewall of tank, two ends arc and base plate all adopt flat mouthful screw to twist and close, and are easy to dismounting.Compare with existing water tank type analogue means, this device has advantages such as simple structure, cost be relatively low, easy to use, applied widely.
Description of drawings
Accompanying drawing 1 is a kind of hydrophyte discharges the generating means of influence process to sediment pollution schematic perspective view of simulating.
Accompanying drawing 2 is a kind of hydrophyte discharges the generating means of influence process to sediment pollution vertical section synoptic diagram of simulating.
Accompanying drawing 3 is a kind of hydrophyte discharges the generating means of influence process to sediment pollution plate-spinning synoptic diagram of simulating.
Accompanying drawing 4 is video disc synoptic diagram.
Among the figure 1 is base; The 2nd, the annular water tank cell body; The 3rd, band valve sample tap; The 4th, plate-spinning; The 5th, motor; The 6th, the adjustable type frequency conversion controller; The 7th, sediment; The 8th, overlying water; The 9th, the inwall of annular water tank; The 10th, the outer wall of annular water tank; The 11st, the knotmeter measuring staff; The 12nd, the knotmeter probe; The 13rd, vertical scale; The 14th, vertical scale; The 15th, the knotmeter geometrical clamp; The 16th, rotary screw; The 17th, vertical slide rail; The 18th, fixed base plate; The 19th, band valve freeing port; The 20th, the plate-spinning rotating shaft; The 21st, video disc; The 22nd, plate; The 23rd, bearing.
Embodiment
Combine accompanying drawing that embodiment of the present invention is described further at present.
A kind ofly simulate hydrophyte and sediment pollution is discharged generating means of influence process and preparation method thereof.Embodiment is: in Fig. 1 and among Fig. 2; This device comprises annular water tank, current propulsion system and fluid-velocity survey stationary installation; Wherein the inwall (9) of the annular water tank cell body (2) of annular water tank and outer wall (10) adopt the rectangle poly (methyl methacrylate) plate of thick 0.5cm; Long 120cm is high 80 centimetres.The two ends bend adopts the semicircle poly (methyl methacrylate) plate of thick 0.5cm; 10 centimetres of bend internal diameters; 40 centimetres of external diameters, inside and outside wall straight way are twisted the mode of closing with the poly (methyl methacrylate) plate of two ends bend with flat mouthful screw and are connected, and sealing is bonding with seccotine; Full annular tank cell body (2) is twisted with flat mouthful screw and is closed on base (1), and base (1) adopts with the unidimensional poly (methyl methacrylate) plate system in cell body transversal section.Outer wall (10) center of annular water tank cell body (2) front and back is arranged in order from top to bottom 6 band valve sample taps (3) is set; The spacing of each band valve sample tap (3) is 10cm; Aperture 0.4cm, lower end, annular water tank outer wall 10 both sides respectively is provided with a band valve freeing port (19), aperture 0.4cm.
The current propulsion system comprises plate-spinning (4), motor (5) and adjustable type frequency conversion controller (6); Plate-spinning (4) is by 14 thick 1cm that are fixed in the rotating shaft of passing the video disc center of circle side by side; The circular video disc (21) of diameter 20cm is formed, equidistant placement, and per two video discs are 1cm at interval.Each circular video disc side is adhesive with 32 strip plates (22), the thick 0.3cm of plate, and wide 0.3cm, long 5cm is uniformly-spaced radial distribution.Video disc (21) all adopts poly (methyl methacrylate) plate with plate (22) material.The inside and outside wall top, two turnings of symmetry all has wide 3cm in Fig. 1; The groove of high 6cm; The plate-spinning rotating shaft (20) that video disc (21) will be installed places in the groove, and an end of rotating shaft (20) is connected on the bearing (23) that is fixed on the inwall relevant position, and the other end is connected on motor (5) movement that is fixed on the outer wall relevant position; Rotating shaft (20) diameter 2cm; Motor (5) adopts the 5IK120GU-C type product of A.Q.L board, and the CBB61 type product of adjustable type frequency conversion controller (6) sampling SENJU board is finished product and purchases.Motor (5) is connected through wire circuit with adjustable type frequency conversion controller (6).
Flow velocity measures the laterally long 50cm of stationary installation (18) fixed base plate, vertically long 35cm, and with grey PVC plate system, crossbearer is on the inside and outside wall of sink body 2, and a rectangle slotted hole is opened, laterally long 15cm, vertically long 30cm in the fixed base plate center.Along vertical limit in hole vertical slide rail (17) is installed; Rotary screw (16) is installed in perpendicular bisector position at slide rail; The screw rod bottom is equipped with roller and is connected with slide rail, and knotmeter geometrical clamp (15) is installed on rotary screw, and vertically slide rail and rotary screw all are furnished with scale; The sediment that collects 7 is tiled in bottom of gullet, planting aquatic plants on sediment.
The simulation hydrophyte is to the generating means of sediment pollution release influence process, and its method of application is following:
1. the undisturbed sediment (7) with the thick 15cm of field acquisition moves into annular water tank cell body (2) bottom, and sediment (7) picks up from Taihu Lake Mei Liangwan area, in annular water tank cell body (2), slowly injects tap water as overlying water (8), the dark 50cm of overlying water (8);
2. flow velocity is measured inwall (9) and outer wall (10) top of stationary installation frame in annular water tank cell body (2); Connect knotmeter; Knotmeter adopts existing doppler velocimeter (model is MicroADV); Knotmeter measuring staff (11) is fixed on the knotmeter geometrical clamp (15), stretches in the annular water tank cell body (2), knotmeter probe (12) is positioned under the overlying water (8); Move the knotmeter probe through rotary screw (16) and vertical slide rail (17), precisely locate through vertical scale (13) and vertical scale (14).Arrange 6 flow velocity measuring points on the vertical line from top to bottom, each measuring point is 10cm at interval, and the doppler velocimeter SF is set at 35HZ, and each measuring point sampling time is 1min;
3. the power supply that connects two current propulsion systems respectively starts driven by motor plate-spinning (4) synchronously, and two plate-spinnings are counterclockwise rotated, and forms steady flow condition in the tank.The contrived experiment operating mode; The water surface flow velocity is respectively 9,30,60cm/s, and according to the knotmeter observed result, the adjustment motor speed is respectively 20r/min, 100r/min, 250r/min; Make the water surface flow velocity reach experimental design intensity, satisfy the needs that the different wind fields of simulation cause different in flow rate.The dynamic action that plate-spinning rotate to produce is in overlying water (8), simulates different wind and puts on overlying water by force and make it produce water movement, and pollution release takes place under hydrodynamism the sediment of bottom of gullet;
4. under the condition that keeps the plate-spinning stabilization of speed, open the valve of band valve sample tap (3) from top to bottom successively and gather overlying water appearance respectively;
5. after the overlying water appearance finishing collecting, the valve that can open band valve freeing port (19) drains overlying water in the groove;
6. water sample adopts State Environmental Protection Administration to compile method mensuration TP in " water and effluent monitoring analytical approach " (the 4th edition).
Vertical velocity flow profile of water body and TP discharge under the different motor speeds of table 1
A kind of generating means and implementation method thereof of simulating hydrophyte to sediment pollution release influence process.In the practical implementation method, on sediment, plant eel grass, planting density is 310 strains/m
2, all the other are with embodiment 1.
Vertical velocity flow profile of water body and TP discharge under the different motor speeds of table 2
A kind of generating means and implementation method thereof of simulating hydrophyte to sediment pollution release influence process.In the practical implementation method, on sediment, plant calamus, planting density is 155 strains/m
2, all the other are with embodiment 1.
Vertical velocity flow profile of water body and TP discharge under the different motor speeds of table 3
Claims (3)
1. generating means of simulating hydrophyte to the sediment pollution dispose procedure; It is characterized in that this apparatus structure is by a racetrack annular water tank; Current propulsion system and fluid-velocity survey stationary installation three parts constitute, wherein the organic glass annular water tank by annular water tank cell body (2) be connected with base (1) institute form, annular water tank cell body (2) is made up of annular water tank outer wall (10) and inwall (9); Two current propulsion systems are installed in the bend place at sink body (2) two ends respectively; It comprises plate-spinning (4), motor (5) and adjustable type frequency conversion controller (6), and wherein plate-spinning (4) is connected with motor (5) through rotating shaft (20), and rotating shaft (20) is placed in the groove on inwall (9) and outer wall (10) top of annular water tank cell body (2); One end is connected in the bearing (23) that is fixed on inwall; The other end is connected in motor (5) movement that is fixed on outer wall, and adjustable type frequency conversion controller (6) is connected with motor (5), the output power of control motor; Flow velocity measures the stationary installation frame in the inwall (9) and outer wall (10) top of annular water tank cell body (2); It comprises vertical scale (13), vertical scale (14), knotmeter geometrical clamp (15), rotary screw (16), vertical slide rail (17) and fixed base plate (18); Wherein fixed base plate (18) crossbearer is on the inwall (9) and outer wall (10) of sink body (2); Open a rectangle slotted hole in the center of fixed base plate (18), identical with the width of inboard wall of cistern to outer wall, along vertical limit of slotted hole vertical slide rail (17) is installed; Rotary screw (16) is installed in perpendicular bisector position at slide rail; The screw rod bottom is equipped with roller and is connected with slide rail, and knotmeter geometrical clamp (15) is installed on rotary screw, and slide rail and screw rod all are furnished with scale; Knotmeter measuring staff (11) is fixed on the knotmeter geometrical clamp (15), and knotmeter probe (12) is equipped with in the measuring staff lower end, the sediment that collects (7) is tiled in bottom of gullet, planting aquatic plants on sediment.
2. simulation hydrophyte according to claim 1 is to the generating means of sediment pollution dispose procedure; It is characterized in that described annular water tank outer wall (10) center; Be provided with 6 ~ 11 band valve sample taps (3) from top to bottom; Sample tap diameter 0.4cm, pitch of holes is decided according to test sampling needs; And a band valve freeing port (19), orifice diameter 0.4cm be set respectively in the lower end, both sides.
3. simulation hydrophyte according to claim 1 is characterized in that to the generating means of sediment pollution dispose procedure plate-spinning (4) is made up of the circular video disc (21) of 14 wide 1cm, diameter 20cm in the described current propulsion system, and video disc (21) is fixed in the rotating shaft (20) of passing the video disc center of circle side by side; With 1cm interval equidistant placement; Video disc quantity is looked the tank width and is decided, and is adhesive with 32 strip plates (22) on the side of every video disc, the thick 0.3cm of plate (22); Wide 0.3cm; Long 5cm is uniformly-spaced radial distribution, to increase video disc (21) and water body contact area; Said video disc (21) and plate (22) are all used poly (methyl methacrylate) plate system.
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| CN2011205642270U CN202383129U (en) | 2011-12-29 | 2011-12-29 | Generation device for simulating sediment pollution release process of aquatic plant |
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| CN2011205642270U CN202383129U (en) | 2011-12-29 | 2011-12-29 | Generation device for simulating sediment pollution release process of aquatic plant |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539644A (en) * | 2011-12-29 | 2012-07-04 | 河海大学 | Generator for simulating pollution release process of aquatic plants to sediments and use method |
| CN102879176A (en) * | 2012-09-28 | 2013-01-16 | 河海大学 | Device and method for simulating resuspension of sediment under action of vertical wind-driven circulation in shallow lake |
| CN102937637A (en) * | 2012-10-22 | 2013-02-20 | 中国环境科学研究院 | Water body experiment apparatus and method |
| CN103235090A (en) * | 2013-04-22 | 2013-08-07 | 河海大学 | Experimental device for simulating settlement and suspension process of solid particles in water |
| CN106836112A (en) * | 2017-03-20 | 2017-06-13 | 清华大学 | A kind of experimental provision and method for studying waterpower water quality relation in cement lining river course |
| CN109490500A (en) * | 2018-11-28 | 2019-03-19 | 安徽理工大学 | Hard deposit water sample stratified sampling and real-time monitoring device |
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2011
- 2011-12-29 CN CN2011205642270U patent/CN202383129U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539644A (en) * | 2011-12-29 | 2012-07-04 | 河海大学 | Generator for simulating pollution release process of aquatic plants to sediments and use method |
| CN102879176A (en) * | 2012-09-28 | 2013-01-16 | 河海大学 | Device and method for simulating resuspension of sediment under action of vertical wind-driven circulation in shallow lake |
| CN102879176B (en) * | 2012-09-28 | 2015-04-08 | 河海大学 | Device and method for simulating resuspension of sediment under action of vertical wind-driven circulation in shallow lake |
| CN102937637A (en) * | 2012-10-22 | 2013-02-20 | 中国环境科学研究院 | Water body experiment apparatus and method |
| CN102937637B (en) * | 2012-10-22 | 2015-04-15 | 中国环境科学研究院 | Water body experiment apparatus and method |
| CN103235090A (en) * | 2013-04-22 | 2013-08-07 | 河海大学 | Experimental device for simulating settlement and suspension process of solid particles in water |
| CN103235090B (en) * | 2013-04-22 | 2015-01-07 | 河海大学 | Experimental device for simulating settlement and suspension process of solid particles in water |
| CN106836112A (en) * | 2017-03-20 | 2017-06-13 | 清华大学 | A kind of experimental provision and method for studying waterpower water quality relation in cement lining river course |
| CN109490500A (en) * | 2018-11-28 | 2019-03-19 | 安徽理工大学 | Hard deposit water sample stratified sampling and real-time monitoring device |
| CN109490500B (en) * | 2018-11-28 | 2024-01-26 | 安徽理工大学 | Hard sediment water sample layered sampling and real-time monitoring device |
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