CN106284193B - A kind of adjustable underflow stilling pool - Google Patents
A kind of adjustable underflow stilling pool Download PDFInfo
- Publication number
- CN106284193B CN106284193B CN201610845785.1A CN201610845785A CN106284193B CN 106284193 B CN106284193 B CN 106284193B CN 201610845785 A CN201610845785 A CN 201610845785A CN 106284193 B CN106284193 B CN 106284193B
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- China
- Prior art keywords
- apron
- connecting rod
- protection
- adjustable
- baffle wall
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
- E02B1/02—Hydraulic models
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a kind of continuous adjustable stilling ponds, both sides are provided with side wall, one end enters the pond body of water other end water outlet, and the pond body is interior to be disposed with the protection-apron of the adjustable steep slope section of the gradient, height and adjustable in length, the apron of adjustable in length along water (flow) direction.The principle of the invention is simple, adjusts optimum size that is more convenient, can quick and precisely finding out stilling pond, the model occupied time is changed when can save model test, model test applied to hydraulic structure, especially suitable for solving the problems, such as underflow energy dissipation, precondition is provided to shorten the Hydraulic Engineering Design period.
Description
Technical field
The present invention relates to a kind of hydraulic model test devices, more particularly, to the adjustable underflow stilling pool of energy dissipation by hydraulic jump.
Technical background
Dissipation and scouring is a major issue in the design of hydraulic engineering discharge structure, it is directly related to the peace of engineering
It is complete and economical.Common dissipation and scouring mode has underflow, surface current and chooses stream three classes in engineering, different types of Energy Dissipation Modes difference
It is adapted to different engineering specifications, such as the hydrology, geology, landform, construction and operational management.
Energy dissipation by hydraulic jump is a kind of more ripe Energy Dissipation Modes, and main energy dissipater is stilling pond, is used in the sluice of Plain
Than wide.After high-speed jet enters stilling pond along pocket floor, by the jacking of tail water, fluidised form is made to be mutated and form hydraulic jump.It is logical
Strong turbulent fluctuation, rotary roll and the ginseng for crossing flow are mixed up with making huge harmful kinetic energy be converted to thermal energy and potential energy, to reach energy dissipating
Purpose.
The design of stilling pond mainly by numerical computations, determines the depth, length and force reduction pool bottom thickness of stilling pond.
And the width of stilling pond is usually wide with Channel of Downstream, design need not generally be changed after determining.The computational methods that specification is recommended
Computational accuracy is very accurate for buildings in general, but for special engineering geological conditions and building, is designed to
Fruit need to be verified through model test, to ensure the safety of building.
Hydraulic model test basic task is exactly to copy substance in kind, and according to similarity criterion, contraction is at model, according to its institute
The predominant intermolecular forces received carry out experimental study, and model is made to recur natural situation similar with substance, are observed acquirement experiment number
According to then according to certain similarity criterion amplification in substance, to judge whether building is safe.Therefore, with hydraulic model
The method of experiment can not only prove the safety of hydraulic structure and reasonability in design, but also be also envisioned that substance can
Can be there is a phenomenon where, while theory and technology premise based on design is verified.Underflow stilling pool model test master
It is to determine the depth and length of building stilling pond under least favorable operating condition, and the width of stilling pond is really by peace calculating
Calmly, stilling pond width is not adjusted generally when model test.Common practice is, by certain model scale, with design
On the basis of Chi Shen, pond length, takes several groups of centrifugal pumps to be combined in the value a certain range, such as ± 5%, then press design document
Defined standard of flood and building least favorable operating condition carry out outflow test, and one group of best pond of effect of energy dissipation is deep, pond is long
For design reference.
Model for dissipation and scouring experimental study is typically to be made of masonry material, its main feature is that being convenient for moulding but foster
It is longer to protect the time, at the same model change, remove it is more difficult and time-consuming, in addition outflow test needs certain time, stilling pond it is every
One pond is deep, pond length combination will obtain one group of complete test data, it would be desirable to time several days.Number of combinations need when
Between it is longer, usually entire experiment, which is done, may need half a year to 1 year even longer time.Test period extension will shadow
It rings result of design to submit on time, and then influences whether being smoothed out for engineering construction.
Dissipation and scouring experiment simultaneously is typically to choose several groups of centrifugal pumps to be tested, and is forced although also being taken during experiment
Close method makes the optimum value that is closely sized to of stilling pond, but facts proved that is extremely difficult to not only safety but also economic purpose.
Invention content
Some existing problems when the purpose of the present invention is aiming at underflow stilling pool model test propose a kind of adjustable
Underflow stilling pool to save the time of model outflow test, while enabling the size of stilling pond to be optimal, and meets both safety
Economic requirement again.
To achieve the goals above, the adjustable underflow stilling pool designed by the present invention, including both sides are provided with side wall, and one
The pond body being discharged into the water other end is held, is characterized in that：It is adjustable that along water (flow) direction the gradient is disposed in the pond body
The apron of the steep slope section of section, the protection-apron of height and adjustable in length, adjustable in length.
Further, further include height-adjustable baffle wall style, the baffle wall style is arranged between protection-apron and apron.Into one
Step increases the size adjustable range of stilling pond.
Further, further include supporting member, the moving link being horizontally movable, institute are provided on the supporting member
State that protection-apron is connect by protection-apron connecting rod with horizontal movement component, the baffle wall style passes through baffle wall style connecting rod and horizontal movement structure
Part connection, the apron are connect by apron connecting rod with horizontal movement component.Horizontal movement component movement drive protection-apron, disappear power
Bank and apron horizontal movement, to achieve the purpose that adjust stilling pond length.
Still further, the horizontal movement component includes slide unit and the grid framework that is arranged on slide unit, the protection-apron
Connecting rod, baffle wall style connecting rod and apron connecting rod are both connected in grid framework.
Still further, the grid framework bottom is provided with traveling wheel, it is provided on the supporting member and is taken turns for traveling
The track of walking.The grid framework edge is additionally provided with the position-limited wheel that limitation grid framework is swung to side wall.Traveling wheel and limit
When the setting of position wheel avoids slide unit from moving, grid framework thereon is rocked, and ensure that the stationarity of grid framework movement.
Still further, the protection-apron connecting rod, baffle wall style connecting rod and apron connecting rod are " J " font connecting rod,
" J " the font connecting rod is located on the outside of side wall, and top is connect with grid framework, and side wall bottom is crossed in bottom end, passes through " J " word
Shape gib head is connect with protection-apron, baffle wall style and the apron bottom inside side wall respectively." J " font connecting rod is located at side wall outer wall, keeps away
Connecting rod has been opened to have an impact flow.
Still further, being additionally provided with protection-apron STATEMENT OF FEDERALLY SPONSORED and baffle wall style STATEMENT OF FEDERALLY SPONSORED in the grid framework, the protection-apron connects
Extension bar and baffle wall style connecting rod top are both provided with screw rod, and the protection-apron STATEMENT OF FEDERALLY SPONSORED is used to control the screw rod at the top of protection-apron connecting rod
It rotates synchronously, the screw rod that the baffle wall style STATEMENT OF FEDERALLY SPONSORED is used to control at the top of baffle wall style connecting rod rotates synchronously.It is connected by adjusting
The height of bar simulates different ponds depths, to obtain the experimental data of different pond depth stilling ponds to adjust the depth of stilling pond.
Still further, the supporting member is located at pond body water inlet and water outlet both sides, described steep slope section one end is hinged
On the basis of, the other end is shelved on protection-apron.When horizontally or vertically moving, the steep slope section other end is kept moving link in this way
With contact, make flow smoothly by steep slope section excessively to protection-apron.
Still further, being provided with limit assembly between the apron connecting rod and apron.So that baffle wall style is being transported up and down
In dynamic, apron is in contact with it always.
Still further, the apron bottom is provided with sliding slot, the limit assembly includes spring and coordinates with sliding slot
Sliding block, the sliding block are connect with apron connecting rod bottom, and the spring one end is connect with baffle wall style, and the other end is connect with sliding block.
So that baffle wall style is in up and down motion, apron horizontal can generate displacement, and the moment remains and contacted with baffle wall style again.
The advantage of the invention is that：
1, stilling pond may be implemented to continuously adjust, test result is made to reach or close to optimum value；
2, the standard of flood that the parameter of best stilling pond, i.e. pond are grown and pond is provided by design deeply, one-time continuous outflow test
It can directly obtain, the parameter of several groups of stilling ponds will be determined in advance by avoiding conventional model test method like that, then be distinguished
Outflow test is carried out, finally therefrom chooses the best class value of effect of energy dissipation as optimum value；
3, the time is saved, since continuously adjusting for stilling pond may be implemented in the present invention, is changed when saving conventional model experiment
Model and grouping outflow test occupied time.
Description of the drawings
Fig. 1 is a kind of adjustable underflow stilling pool structural schematic diagram of the present invention.
Fig. 2 is the A-A sectional views of Fig. 1.
Fig. 3 is baffle wall style and apron bottom plan view in Fig. 1.
In figure：Steep slope section 1, protection-apron 2, protection-apron connecting rod 2.1, baffle wall style 3, baffle wall style connecting rod 3.1, baffle wall style STATEMENT OF FEDERALLY SPONSORED
3.2, apron 4, apron connecting rod 4.1, sliding slot 4.2, supporting member 5, horizontal movement component 6, slide unit 6.1, grid framework 6.2,
Traveling wheel 6.3, screw rod 7, limit assembly 8, spring 8.1, sliding block 8.2, side wall 9, basis 10, position-limited wheel 11, arrow direction is water
Flow direction.
Specific implementation mode
The present invention is described in further detail in the following with reference to the drawings and specific embodiments：
Adjustable underflow stilling pool shown in figure, including both sides are provided with side wall 9, and one end enters the pond of water other end water outlet
Body, interior protection-apron 2, the height that the adjustable steep slope section 1 of the gradient, height and adjustable in length are disposed with along water (flow) direction of pond body
The apron 4 of adjustable baffle wall style 3, adjustable in length.
Concrete structure is supporting member 5 to be arranged in stilling pond water inlet and water outlet, being provided on supporting member 5 can water
The horizontal movement component 6 of flat movement, protection-apron 2 is connect by protection-apron connecting rod 2.1 with horizontal movement component 6, baffle wall style 3 is by disappearing
Power bank connecting rod 3.1 is connect with horizontal movement component 6, apron 4 is connect by apron connecting rod 4.1 with horizontal movement component 6.
Wherein, horizontal movement component 6 includes slide unit 6.1 and the grid framework 6.2 being arranged on slide unit, protection-apron connecting rod
2.1, baffle wall style connecting rod 3.1 and apron connecting rod 4.1 are both connected in grid framework 6.2.It is driven when to prevent slide unit from moving
Grid framework is swung, and 6.2 bottom of grid framework is provided with traveling wheel 6.3, is provided on supporting member 5 for 6.3 walking of traveling wheel
Track, ensure 6.2 traveling comfort of grid framework, for prevent grid framework 6.2 to 9 direction of side wall swing, can also be in net
Position-limited wheel 11 is set on 6.2 edge of lattice frame, is further ensured that the stationarity of grid framework 6.2.Protection-apron connecting rod 2.1, disappear power
Bank connecting rod 3.1 and apron connecting rod 4.1 are " J " font connecting rod, and " J " font connecting rod is located at 9 outside of side wall, top
Connect with grid framework 6.2,9 bottom of side wall is crossed in bottom end, " J " font gib head respectively with the protection-apron 2 of 9 inside of side wall, disappear power
Bank 3 is connected with 4 bottom of apron.Protection-apron connecting rod 2.1 is provided with 4, is distributed at 2 four angles of protection-apron, baffle wall style connecting rod 3.1
There are two settings, is located at 3 both sides of baffle wall style.Protection-apron connecting rod 2.1 and 3.1 top of baffle wall style connecting rod are respectively provided with screw rod
7, to ensure that protection-apron connecting rod 2.1 can rotate synchronously, it is provided with protection-apron STATEMENT OF FEDERALLY SPONSORED, for controlling 2.1 top of protection-apron connecting rod
Screw rod rotates synchronously, and in order to ensure that baffle wall style connecting rod 3.1 can rotate synchronously, baffle wall style STATEMENT OF FEDERALLY SPONSORED 3.2 is provided with, for controlling
The screw rod at 3.1 top of baffle wall style connecting rod rotates synchronously.1 one end of steep slope section is hinged on basis 10, and the other end is shelved on protection-apron 2
On.Limit assembly 8 is provided between apron connecting rod 4.1 and apron 4, during ensureing that baffle wall style 3 moves up and down, apron 4 begins
It is in contact with it eventually.Wherein, 4 bottom of apron is provided with sliding slot 4.2, and limit assembly 8 includes spring 8.1 and coordinates with sliding slot 4.2
Sliding block 8.2, sliding block 8.2 are connect with 4.1 bottom of apron connecting rod, and 8.1 one end of spring is connect with baffle wall style 3, the other end and sliding block
8.2 connection.
A kind of manufacturing process of adjustable underflow stilling pool of the present invention includes the following steps：
Step 1：Made steep slope section 1, protection-apron 2, baffle wall style 3 and apron 4 and the side wall of stilling pond respectively of stainless steel plate
9, then assembled integral, width is identical as design, the requirement of stilling pond size adjusting, device when length meets model test
1 water intake end of steep slope section with basis 10 on lock chamber connect, 4 sections of apron connect with channel thereafter, and whole device is put into rectangle water
In slot；
Step 2：Using frame support member made of section steel material 5 and rectangular mesh framework 6.2, outside grid framework 6.2
Shape size is less than supporting member 5, and supporting member 5 is connect with basis 10, is arranged in water inlet and the water outlet both sides of pond body；
Step 3：Grid framework 6.2 is fixed on 6.1 face of slide unit, and slide unit 6.1 drives grid framework 6.2 to move horizontally,
6.1 basis of slide unit is mounted on supporting member 5；
Step 4：With 4 " J " shape connecting rods with model, connecting rod lower part " J " shape gib head is connected with 2 bottom surface of protection-apron respectively
It connects, the screw rod pedestal that threaded top is passed through in grid framework 6.2 is arranged in connecting rod, is made by protection-apron STATEMENT OF FEDERALLY SPONSORED
4 " J " components on protection-apron 2 can move up and down simultaneously；
Step 5：With 2 " J " shape connecting rods with model, lower part " J " shape gib head is connected with 3 both ends bottom surface of baffle wall style respectively
It connects, the screw rod pedestal that threaded top is passed through in grid framework 6.2 is arranged in connecting rod, passes through baffle wall style STATEMENT OF FEDERALLY SPONSORED
3.2 allow 2 " J " components on baffle wall style 3 to move up and down simultaneously, and wherein baffle wall style 3 is made of non-corrosive material, and section is
Right-angled trapezium；
Step 6：With 4 " J " shape connecting rods with model, by connecting rod lower part " J " shape gib head respectively with mounted on apron 4
Sliding block 8.2 on bottom surface sliding slot 4.2 connects, and " J " shape connecting rod top used has no thread segment on apron 4, by simultaneously non-threaded
Top be fixed in grid framework 6.2, corresponding with sliding block 8.2 sliding slot 4.2 is arranged in 4 bottom surface of apron, and apron 4 passes through bullet
The pulling force of spring 8.1 is tightly connected with baffle wall style 3, and 8.1 one end of spring is connected to 3 bottom of baffle wall style, and the other end is connected to sliding block 8.2
On, when baffle wall style 3 moves up and down, apron 4 is pushed by baffle wall style 3 and the effect of 8.1 elastic force of spring moves before and after 4.2 direction of sliding slot
It is dynamic；
Step 7：By 1 one end of steep slope section and fastener for connection, keep steep slope section 1 tangent with steel pipe, the other end is shelved on protection-apron,
Steel pipe both ends set bearing, and bearing is mounted on basis 10, and when protection-apron 2 moves up and down, steep slope section 1 is rotated around bearing.
A kind of adjustable underflow stilling pool course of work provided by the invention is described below：
The present invention is mounted on to the corresponding site of test model, and so that each scantling of the present invention is met model test and wants
It asks, then adjusting slide unit makes the length of stilling pond meet design requirement, adjusts protection-apron and the corresponding screw rod of baffle wall style, protection-apron connection
Bar and baffle wall style connecting rod are respectively perpendicular movement, and stilling pond depth is made to reach design value, and the height of baffle wall style is made to reach design value,
It will be adjusted to flush with apron at the top of baffle wall style if being designed without baffle wall style.
When model test, after the pond length of stilling pond and pond are adjusted to design value deeply, carried out by the flood frequency of design code
Outflow test, the cross-sectional flow in certain distance channel or river is distributed feelings after observing stilling pond fluidised form and stilling pond by fluidised form
Condition differentiates stilling pond effect of energy dissipation.Long come the pond for adjusting stilling pond with horizontal movement component, protection-apron vertical movement adjusts the power that disappears
The pond in pond is deep, moves vertically as necessary by baffle wall style and adjusts the height of baffle wall style.Stilling pond ruler will once be caused by often adjusting
Very little change need to carry out when adjusting again after fluidised form change is stable behind pond caused by Primary regulation before.After stilling pond fluidised form and
Thereafter when channel or river cross-section velocity flow profile meet design requirement, the size of stilling pond at this time is engineering in various operations
The actual value for ensureing stilling pond safety under operating mode provides reference for design.
The principle of the invention is simple, adjusts optimum size that is more convenient, can quick and precisely finding out stilling pond, can save mould
The model occupied time is changed when type is tested, is applied to the model test of hydraulic structure, especially suitable for solving underflow type
Dissipation of Energy provides precondition to shorten the Hydraulic Engineering Design period.
Claims (10)
1. a kind of adjustable underflow stilling pool, including both sides are provided with side wall (9), one end enters the pond body of water other end water outlet,
It is characterized in that：In the pond body the adjustable steep slope section of the gradient (1), height and adjustable in length are disposed with along water (flow) direction
Protection-apron (2), adjustable in length apron (4)；Further include supporting member (5), being provided on the supporting member (5) can be horizontal
The horizontal movement component (6) of movement, the protection-apron (2) connect by protection-apron connecting rod (2.1) with horizontal movement component (6), institute
Apron (4) is stated to connect with horizontal movement component (6) by apron connecting rod (4.1)；The protection-apron connecting rod (2.1) and apron connect
Extension bar (4.1) apron is " J " font connecting rod, and " J " the font connecting rod is located on the outside of side wall (9), top and level
Moving link (6) connects, and bottom end crosses side wall (9) bottom, passes through " J " the font gib head protection-apron (2) internal with side wall (9) respectively
It is connected with apron (4) bottom, the protection-apron connecting rod (2.1) can move up and down；The steep slope section (1) enters water section and basic (10)
On lock chamber it is hinged, the other end is shelved on protection-apron.
2. adjustable underflow stilling pool according to claim 1, it is characterised in that：It further include height-adjustable baffle wall style
(3), the baffle wall style (3) is arranged between protection-apron (2) and apron (4).
3. adjustable underflow stilling pool according to claim 2, it is characterised in that：The baffle wall style (3) passes through baffle wall style
Connecting rod (3.1) is connect with horizontal movement component (6).
4. adjustable underflow stilling pool according to claim 3, it is characterised in that：The horizontal movement component (6) includes
Slide unit (6.1) and the grid framework (6.2) being arranged on slide unit, the protection-apron connecting rod (2.1), baffle wall style connecting rod (3.1)
It is both connected in grid framework (6.2) with apron connecting rod (4.1).
5. adjustable underflow stilling pool according to claim 4, it is characterised in that：Grid framework (6.2) bottom is set
It is equipped with traveling wheel (6.3), the track for traveling wheel (6.3) walking, the grid framework are provided on the supporting member (5)
(6.2) edge is additionally provided with the position-limited wheel (11) for preventing grid framework (6.2) from being swung to side wall (9).
6. adjustable underflow stilling pool according to claim 5, it is characterised in that：The baffle wall style connecting rod (3.1) is
" J " font connecting rod, " J " the font connecting rod are located on the outside of side wall (9), and top is connect with grid framework (6.2), bottom end
Side wall (9) bottom is crossed, is connect respectively with the baffle wall style (3) of side wall (9) inside by " J " font gib head.
7. adjustable underflow stilling pool according to claim 6, it is characterised in that：It is also set on the grid framework (6.2)
It is equipped with protection-apron STATEMENT OF FEDERALLY SPONSORED and baffle wall style STATEMENT OF FEDERALLY SPONSORED (3.2), the protection-apron connecting rod (2.1) and baffle wall style connecting rod (3.1) top
It is respectively provided with screw rod (7), the screw rod that the protection-apron STATEMENT OF FEDERALLY SPONSORED is used to control at the top of protection-apron connecting rod (2.1) rotates synchronously,
The screw rod that the baffle wall style STATEMENT OF FEDERALLY SPONSORED (3.2) is used to control at the top of baffle wall style connecting rod (3.1) rotates synchronously.
8. adjustable underflow stilling pool according to claim 7, it is characterised in that：The supporting member is located at pond body and enters water
Mouth and water outlet both sides, on the basis of described steep slope section one end is hinged on, the other end is shelved on protection-apron.
9. adjustable underflow stilling pool according to claim 8, it is characterised in that：The apron connecting rod (4.1) and sea
It is provided with limit assembly (8) between unrestrained (4).
10. adjustable underflow stilling pool according to claim 9, it is characterised in that：Apron (4) bottom is provided with cunning
Slot (4.2), the limit assembly (8) include spring (8.1) and the sliding block (8.2) that coordinates with sliding slot (4.2), the sliding block
(8.2) connect with apron connecting rod (4.1) bottom, described spring (8.1) one end is connect with baffle wall style (3) apron, the other end with
Sliding block (8.2) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610845785.1A CN106284193B (en) | 2016-09-23 | 2016-09-23 | A kind of adjustable underflow stilling pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610845785.1A CN106284193B (en) | 2016-09-23 | 2016-09-23 | A kind of adjustable underflow stilling pool |
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| Publication Number | Publication Date |
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| CN106284193A CN106284193A (en) | 2017-01-04 |
| CN106284193B true CN106284193B (en) | 2018-08-21 |
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| CN201610845785.1A Expired - Fee Related CN106284193B (en) | 2016-09-23 | 2016-09-23 | A kind of adjustable underflow stilling pool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108316258A (en) * | 2018-04-13 | 2018-07-24 | 河南创辉水利水电工程有限公司 | A kind of baffle wall style with resistance device |
| CN109778771B (en) * | 2019-03-11 | 2020-07-24 | 中山大学 | Sand paving device and sand paving method capable of controlling sand paving thickness of bottom bed |
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| JP2009053024A (en) * | 2007-08-27 | 2009-03-12 | Kansai Electric Power Co Inc:The | Measuring implement of flow rate in wave overtopping |
| CN201262798Y (en) * | 2008-10-15 | 2009-06-24 | 长沙理工大学 | Combined sluice gate model |
| CN203654230U (en) * | 2013-11-18 | 2014-06-18 | 北京林业大学 | Sand supply instrument for variable slope water channel |
| CN204780759U (en) * | 2015-06-29 | 2015-11-18 | 浙江水利水电学院 | Can insert and piece together formula sluice model |
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