CN206752404U - A kind of experimental provision for being used to study waterpower water quality relation in cement lining river course - Google Patents
A kind of experimental provision for being used to study waterpower water quality relation in cement lining river course Download PDFInfo
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- CN206752404U CN206752404U CN201720269044.3U CN201720269044U CN206752404U CN 206752404 U CN206752404 U CN 206752404U CN 201720269044 U CN201720269044 U CN 201720269044U CN 206752404 U CN206752404 U CN 206752404U
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- straight trough
- river course
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- blade
- water quality
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Abstract
A kind of experimental provision for being used to study waterpower water quality relation in cement lining river course,Including by two straight troughs being parallel to each other while and the sink main body that forms of two halves circular channels side during two straight trough of connection,Installing central baffle in the middle part of sink main body,Central baffle and two straight trough sides are parallel and isometric,So that sink main body turns into the racetrack tank of circulation reciprocating type,Two straight trough sections are formed between central baffle and two straight trough sides,The both ends of two straight trough sections are connected by a semicircular water tank section respectively,And the width of straight trough section is identical with the radius of semicircular water tank section,A semicircular water tank section bottom is provided with drain groove,A straight trough section is provided with blade,Uniformly to promote trough inner water stream to move,The device can simulate different in flow rate in cement lining river course,The depth of water or Reynolds number are to water quality,Influence caused by algal grown etc.,Its structure is concise,Construction is easy,Cement lining river course plug-flow state can effectively be emulated,Experimental implementation is easy.
Description
Technical field
The utility model belongs to field of environment engineering technology, more particularly to a kind of to be used to study cement lining river course reclaimed water
The experimental provision of power-water quality relation.
Background technology
In city, the activity such as river course environment is lived with nearby residents, amusement is closely related, its landscape, ecological functions one
As can not ignore.China's city river carries out lining cutting using cement to riverbed surface more, and moisturizing is often related in river management
Etc. artificial regulation measure, therefore in city river management and control, to river course hydraulic elements and its landscape, water quality (including algal grown)
The research of influence relation is significant.
Before the utility model, tub device, straight trough are included to the experimental provision of river course waterpower and water quality impact relation
Device (including collapsible straight trough) and annular slot device.Wherein, tub device makes water body rotating flow by the mode such as shaking, stirring
Dynamic, such as Beijing Inst. of Water Conservancy Science in 2011 has applied for a kind of A of Publication No. CN 102174373 " microcystic aeruginosa
The patent of invention of class research device ", current are promoted by rotation of the underwater blade around tub tank.Tub device can simulate
The unit water body mixed entirely, but calculating flow velocity is more difficult, can not meet the requirement of waterpower-water quality relation research.Straight trough device
In, water body from one end flow into one end outflow, be usually used in the research of attached microbial, can not effectively analogue unit water body it is prolonged
Change of water quality.And for annular water tank, can be with the motion of simulation water body unit, and be relatively easy to measure the hydraulic elements such as flow velocity.Mesh
Before have two kinds of forms of circular ring type and racetrack, the Publication No. CN of circular ring type device Tongji University's application in such as 2013
103207060 B " a kind of annular water tank device that can be used for simulation natural river course flow characteristics " and Shanghai estuary coast science
The B of Publication No. CN 103592101 of research center application " a kind of truss-like all automatic measurement and the examination for controlling annular water tank
Experiment device " patent of invention；The Publication No. CN of racetrack device Beijing Environmental Protection Science Inst.'s application in such as 2015
204495541 U " utilizing the device of annular water tank simulation natural river course flow characteristics " utility model patent, is to use to cut
Water body flow in power effect band dynamic water tank.
But existing experimental provision patent can not temporarily meet the research of waterpower in artificial lining cutting river course-water quality key element research
Demand, including：River width is smaller in city river, current are slower, can be considered plug-flow river course, it is in plug-flow state stream that should try one's best and make water body
It is dynamic；Simultaneously as device can be used for research algal grown situation, therefore the extraneous shearing of the reduction that should try one's best is to algae form and cluster
The influence brought；In addition, for the material of frictional force, cement riverbed into water body caused by effective simulated flow and cement surface
Release or planktonic organism etc. need to carry out lining cutting with cement inside device in the attachment phenomenon of riverbed surface.
The content of the invention
The shortcomings that in order to overcome above-mentioned prior art, the purpose of this utility model in for environmental project city river repair
Multiple field provides a kind of experimental provision for being used to study waterpower in cement lining river course-water quality relation, for simulating cement lining
Different in flow rate in the river course, depth of water or Reynolds number can effectively emulate cement lining to influence caused by water quality, algal grown etc.
River course plug-flow state is built, experimental implementation is easy, has structure simplicity, easy construction, cost-effective, applicability and with strong points etc.
Advantage.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of experimental provision for being used to study waterpower in cement lining river course-water quality relation, including sink main body 1, tank
Main body 1 is made up of two straight troughs being parallel to each other while with two halves circular channels side during two straight trough of connection, at the middle part of sink main body 1
Central baffle 2 is installed, central baffle 2 and two straight trough sides are parallel and isometric so that sink main body 1 turns into circulation reciprocating type
Racetrack tank, between central baffle 2 and two straight trough sides form two straight trough sections, the both ends of two straight trough sections pass through respectively
One semicircular water tank section connection, and the width of straight trough section is identical with the radius of semicircular water tank section, in a semicircular water tank
Section bottom is provided with drain groove 3, the blade 6 being connected with adjustable power set 5 is provided with a straight trough section, uniformly to promote
Trough inner water stream moves.
The drain groove 3 is square or circular, to insert diving pump drainage when bottom is less than ground, its width or half
Footpath is more than used diving pump frame radius, when orographic condition allows, sets in line mouth to carry out gravity drainage in bottom portion of groove.
The inwall of sink main body 1 carries out lining cutting with cement, with the river course surface of the actual artificial lining cutting of simulation, so that
Frictional force caused by effective simulated flow and cement surface and aufwuch in experiment, planktonic organism riverbed surface attachment
Phenomenon.
The method of the cement lining is：It is every in the sink main body inwall and central baffle both sides surface of steel plate 9 assembled
Square centimeter spot welding 12mm length steel nail 13, plastered 10, thickness 5-8mm using cement mortar, on its surface after its initial set
Place wire netting 11 and be used as reinforcement, cover cement mortar 12 again and be compacted, thickness 5-8mm.
The blade 6 is three paddle blade structures, and three blades respectively at a distance of 120 °, are evenly distributed on paddle shaft, its size and position
It is set to：During blade vertical water groove bottom, blade tip is not less than 5cm away from tank bottom surface, no more than the experiment depth of water；Blade parallel water
During trough face, horizontal range of the center line away from straight trough section initiating terminal residing for paddle shaft, power set axle is not less than blade length,
No more than 1/2 straight trough segment length；Blade openwork part area is determined by the experiment depth of water and flow velocity.
The adjustable power set 5 are made up of motor and speed reducer, and turning for blade 6 is adjusted by reductor speed governing knob 7
Dynamic speed, and blade rotation direction 8 makes current flow to the straight trough section rear end from paddle shaft straight trough section front end closer to the distance.
The blade 6 and its paddle shaft, and steel plate above the water surface carry out antirust treatment.
Compared with prior art, the beneficial effects of the utility model are the utility model：
(1) the utility model is more applicable for can be considered plug-flow using water body flow mode under blade simulation plug-flow state
The streamflow of state.
(2) the utility model includes straight trough section, and current lateral flow is buffered and reduced, and flow velocity in groove is measured more
It is convenient and accurate.
(3) the utility model carries out lining cutting using cement to inboard wall of cistern, effectively can be produced with cement surface simulated flow
The attachment phenomenon in riverbed surface such as raw frictional force and aufwuch, planktonic organism.
(4) the utility model is provided with drain groove, using immersible pump carry out draining, so as to ignore bottom of device with
Ground height.Bottom of device can be placed in below ground in experiment, can while smooth draining holding meanss external temperature
Suitably；And it also can directly carry out gravity drainage during orographic condition permission
(5) the utility model structure is concise, simple with electric line, is easy to construction, saves cost.
Brief description of the drawings
Fig. 1 is the top view that the utility model is used to study the experimental provision of waterpower in cement lining river course-water quality relation.
Fig. 2 is the front view that the utility model is used to study the experimental provision of waterpower in cement lining river course-water quality relation.
Fig. 3 is that the left side for the experimental provision that the utility model is used to study waterpower in cement lining river course-water quality relation regards
Figure.
Fig. 4 is the cement lining that the utility model is used to study the experimental provision of waterpower in cement lining river course-water quality relation
Course schematic diagram.
In figure：1 is sink main body；2 be central baffle；3 be drain groove；4 be cement lining surface；5 be adjustable power
Device；6 be blade；7 be reductor speed governing knob；8 be blade rotation direction；9 be sink main body inwall and central baffle both sides
Surface of steel plate；10 be internal layer cement mortar；11 be iron wire stratum reticulare；12 be outer layer cement mortar；13 be steel nail.
Embodiment
Describe embodiment of the present utility model in detail with reference to the accompanying drawings and examples.
As shown in Figures 1 to 3, the utility model experimental provision includes sink main body, central baffle, adjustable power set, oar
Leaf etc..
Sink main body 1 and central baffle 2 high 1000mm, main body steel plate thickness 4mm, the stirrup that a thick 8mm is arranged at top are fixed
(stirrup can be set again at 1/2 height as needed).After central baffle separates, it is straight to form the twice being parallel to each other
Groove, straight trough length are 4000mm, width 1000mm, twice semicircular water tank, radius 1000mm.The square drain groove length of side
For 200mm, centre-to-centre spacing semicircular water tank top 500mm.
In the utility model, as shown in figure 4, in the sink main body inwall and central baffle both sides surface of steel plate 9 that assemble
With the steel nail 13 of spot welding 12mm length every square centimeter, plastered 10, thickness 5mm using cement mortar afterwards, after its initial set
Wire netting 11 is placed on its surface and is used as reinforcement, is covered cement mortar 12 again and is compacted, thickness 8mm.
In the utility model, blade 6 totally three, it is evenly distributed at a distance of 120 ° on paddle shaft, its length is 1100mm, wide
Spend for 900mm, effectively push away water section (non-openwork part) and be spliced by the detachable steel plate that five tile heights are 100mm, can root
According to needing to dismantle.Horizontal range of the center line away from straight trough front end residing for paddle shaft, power set axle is 1200mm.Power set
The top of another straight trough is set up in, steel plate mat thickness is 8mm.Blade, paddle shaft, power set metal mat are with antirust paint
Reason.
Device bottom surface is placed in below ground 500m, and outer wall more than ground is covered with straw mat, fits water temperature in device
Preferably.
The debugging of water velocity, comprises the following steps in the utility model：
Step 1, depth of water requirement is calculated according to experimental program, and in depth of water scale needed for experimental provision inwall mark；
Step 2, the injection experimentses water into experimental provision, reach scale to the depth of water, open motor, rotational deceleration machine is adjusted
Fast knob 7 is to lowest speed；
Step 3, now flow velocity is measured using single-point current meter in a straight trough section of no blade 6, measurement point position is in this
Straight trough section midpoint, at 1/2 depth of water, flow velocity will be measured and be labeled at reductor speed governing knob 7；
Step 4, reductor speed governing knob 7 is adjusted to most high speed or does not produce the critical flow velocity that appreciable current laterally shakes,
Repeat step three operates；
Step 5, according to Step 3: step 4 operating result, reductor speed governing knob 7 when estimation reaches required flow velocity
Put, reductor speed governing knob 7 is allocated to the position, continue repeat step three and step 5 operation, until measured flow velocity is expired
It is full to test demand, mark now knob position.
The method that change of water quality research under specific flow velocity is carried out using the utility model device, is comprised the following steps, herein
By taking algae culture as an example.
Step 1, after removing the debris in device after drying, into experimental provision, injection experimentses are reached with water to the depth of water
To at default scale, adjustable power set 5 are opened.
Step 2, water volume flow rate in experimental provision is determined again using the method for step 3 in the debugging of water velocity.
Step 3, power set continuous service is kept, water body constant flow, periodically carries out the detection of algae index and record,
And every five days using the debugging of water velocity in step 3 method examine flow velocity whether keep constant.
Step 4, after detection terminates, adjustable power set 5 are closed down, immersible pump is placed in drain groove 3, carry out draining.
Step 5, after draining terminates, the phytoplankton that device inwall adheres to is scrubbed and removed with brush, and will dress
Put to be dried to after being completely dried and can carry out next group of experiment.
Step 6, the growth rate of algal grown in device during testing is tried to achieve according to obtained algae index, with reference to each
The flow velocity set in group experiment, draw the changing rule figure of lower algal grown speed different in flow rate.
In the utility model, different hydraulics can be formed according to the different service condition of device, and pass through experiment
Available specific water quality index data (depending on different Research Requirements) are monitored, can be carried out specifically with reference to both
Waterpower-water quality relationship analysis.
Claims (7)
1. a kind of experimental provision for being used to study waterpower in cement lining river course-water quality relation, including sink main body (1), tank
Main body (1) is made up of two straight troughs being parallel to each other while with two halves circular channels side during two straight trough of connection, it is characterised in that
Installing central baffle (2) in the middle part of sink main body (1), central baffle (2) and two straight trough sides are parallel and isometric so that tank
Main body (1) turns into the racetrack tank of circulation reciprocating type, and two straight trough sections are formed between central baffle (2) and two straight trough sides,
The both ends of two straight trough sections are connected by semicircular water tank section respectively, and the half of the width of straight trough section and semicircular water tank section
Footpath is identical, and a semicircular water tank section bottom is provided with drain groove (3), is provided with a straight trough section and is filled with adjustable power
The blade (6) of (5) connection is put, uniformly to promote trough inner water stream to move.
2. being used for the experimental provision for studying waterpower in cement lining river course-water quality relation according to claim 1, its feature exists
In, the drain groove (3) is square or circular, to insert diving pump drainage when bottom is less than ground, its width or radius
More than used diving pump frame radius, when orographic condition allows, in line mouth is set to carry out gravity drainage in bottom portion of groove.
3. being used for the experimental provision for studying waterpower in cement lining river course-water quality relation according to claim 1, its feature exists
In sink main body (1) inwall carries out lining cutting with cement, with the river course surface of the actual artificial lining cutting of simulation, so as in reality
Effective simulated flow is tested with frictional force caused by cement surface and aufwuch, planktonic organism in the attachment of riverbed surface to show
As.
4. being used for the experimental provision for studying waterpower in cement lining river course-water quality relation according to claim 1, its feature exists
In the blade (6) is three paddle blade structures, and three blades respectively at a distance of 120 °, are evenly distributed on paddle shaft, its size and position
For：During blade vertical water groove bottom, blade tip is not less than 5cm away from tank bottom surface, no more than the experiment depth of water；The parallel tank of blade
During ground, horizontal range of the center line away from straight trough section initiating terminal residing for paddle shaft, power set axle is not less than blade length, no
More than 1/2 straight trough segment length；Blade openwork part area is determined by the experiment depth of water and flow velocity.
5. being used for the experimental provision for studying waterpower in cement lining river course-water quality relation according to claim 1, its feature exists
In the adjustable power set (5) are made up of motor and speed reducer.
6. being used for the experimental provision for studying waterpower in cement lining river course-water quality relation according to claim 5, its feature exists
In by the velocity of rotation of reductor speed governing knob (7) adjustment blade (6), and blade rotation direction (8) makes current from paddle shaft
Straight trough section front end closer to the distance flows to the straight trough section rear end.
7. being used for the experimental provision for studying waterpower in cement lining river course-water quality relation according to claim 5, its feature exists
In the blade (6) and its paddle shaft, and steel plate above the water surface carry out antirust treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720269044.3U CN206752404U (en) | 2017-03-20 | 2017-03-20 | A kind of experimental provision for being used to study waterpower water quality relation in cement lining river course |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720269044.3U CN206752404U (en) | 2017-03-20 | 2017-03-20 | A kind of experimental provision for being used to study waterpower water quality relation in cement lining river course |
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| Publication Number | Publication Date |
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| CN206752404U true CN206752404U (en) | 2017-12-15 |
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| CN201720269044.3U Expired - Fee Related CN206752404U (en) | 2017-03-20 | 2017-03-20 | A kind of experimental provision for being used to study waterpower water quality relation in cement lining river course |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2017
- 2017-03-20 CN CN201720269044.3U patent/CN206752404U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106836112B (en) * | 2017-03-20 | 2022-09-02 | 清华大学 | Experimental device and method for researching hydraulic power-water quality relation in cement lining river channel |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20200320 |