CN109537537A - A kind of measurement water method and device thereof - Google Patents
A kind of measurement water method and device thereof Download PDFInfo
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- CN109537537A CN109537537A CN201811456624.9A CN201811456624A CN109537537A CN 109537537 A CN109537537 A CN 109537537A CN 201811456624 A CN201811456624 A CN 201811456624A CN 109537537 A CN109537537 A CN 109537537A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
- E02B7/34—Flash- boards for vertical-lift gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/54—Sealings for gates
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of measurement water method and device thereof, method and device thereof of the invention change the fixed form for having passed system sharp-crested weir, install lifting mechanism at weir plate both ends, are driven by elevating mechanism, to realize that sharp-crested weir height is adjustable by the height of adjustment weir plate.When weir plate is displaced downwardly to flow control and amount water state, water flows through at the top of weir plate, and adjusts flow by the control weir plate amount of moving down, and water-level observation point is provided at 2~5 times of 1 upstream of the weir plate weir crest maximum head, to measure sluice head；Entire weir gate forms a sharp-crested weir at this time, under a certain predetermined altitude of weir plate, by measuring the structure size of weir head and weir gate, calculates the flow for flowing through weir gate.The applicable limitation requirement and drawback of conventional sharp-crested weir can be overcome, the water measure equipment of this laboratory precision grade of rectangle thin-wall weir can be applied to field and canal system.
Description
Technical field
The present invention relates to hydraulic structure field, espespecially a kind of measurement water method and device thereof.
Background technique
Sharp-crested weir is the water flow of open canal equipment of a classics, and technology maturation, theoretical basis is solid, is more accurately to measure water
Equipment.In existing water conservancy industry standard " hydraulic structure and weir notch test standardize " (SL 537), national standard " irrigation canal
System quantities water specification " (GB/T 21303), " water metering directive/guide " (GB/T 28714), national measurement examination criteria " open channel weir
Slot flowmeter measurement verification directive/guide " (JJG (water conservancy) 004) and international standard " open channel flow rate test --- sharp-crested weir " (ISO
1438) sharp-crested weir have been included in, its testing method and applicable elements have been dictated, measuring accuracy can reach 1.5%~
3.0%.
Sharp-crested weir weir plate should be vertical with side wall and water (flow) direction, and sharp-edged should be made in crest of weir, and sharp-edged horizontal breadth is 0.001m
~0.002m, when thickness is greater than this size, notch lower edge will be processed into inclined-plane, and make the folder of weir crest downstream bevel and weir crest
Angle is not preferably less than 45 ° (see Fig. 1).
When rectangle thin-wall weir water flowing flow measurement, the overflow that water flow is formed by thin-walled weir plate is chosen completely to be projected from weir crest, overflow
Lower surface should contact with atmosphere, ventilate well, and overall with rectangle thin-wall weir is to guarantee that overflow stabilization need to set ventilation on the rear wall of weir
Pipe.Downstream peak level should be lower than weir crest 0.1m, and weir head should be greater than 0.03m.
Head Measure section should be arranged at 2~5 times away from crest of weir upstream weir crest maximum heads.Thin-walled weir water gauge zero point
Elevation is identical as elevation of weir crest, and water gauge zero point elevation is measured by level and determined.When crest of weir wide (b) and the nearly width of the channel (B) of row it
When than b/B >=0.5, the length of the nearly gool of row at least should be 10 times of groove width；As b/B < 0.5, can suitably shorten.The nearly canal of row
Slot should keep section unified neat, straight.
Since sharp-crested weir structure is simple, installing is easy, and cost is lower, is widely used in hydraulics, hydraulic test room and the row of filling
It on channel, can be used alone, can also be used cooperatively with canal structure.Weir plate installation should be vertical, flows vertically to, the wall surface that meets water is answered
It is smooth.Each section device should accurately securely, and the not variation of reason water flow and temperature and corrosion-deformation.Installation foundation needs heavily fortified point
Gu not reason a variety of causes there is a situation where toppling, sliding, be broken, depression and leak, weir crest should often keep good surface
Finish.
The Main Control Elements of sharp-crested weir amount water are weir head (H) and weir plate height (P), discharge coefficient and longitudinal contraction
It is more closely related than (H/P), it is the key parameter of sharp-crested weir flow measurement.Since conventional sharp-crested weir existing at present is with fixed weir
Height is flooded, the drawbacks of water hour blocks water, and water body when water can not be overcome big because being limited by flow formula use condition
When silt content is larger, gool before weir is be easy to cause to deposit.Since there are drawbacks described above, this method is usually only applied to laboratory inspection
It surveys.
In addition, due in codes and standards such as " irrigation canal system quantities water specification " (GB/T 21303-2017), to sharp-crested weir
Longitudinal contraction ratio (H/P) numberical range done using limitation.And conventional sharp-crested weir has fixed weir high, in certain flow feelings
Under condition, formed longitudinal contraction ratio (H/P) be it is fixed, if gone beyond the scope, will lead to precision and substantially reduce, thus use
It is very limited.
Summary of the invention
To solve the above problems, present invention is primarily aimed at provide a kind of simple method and device thereof, can overcome often
The applicable limitation requirement and drawback of sharp-crested weir are advised, and can be the water measure equipment application of this laboratory precision grade of rectangle thin-wall weir
To field and canal system.To can provide a kind of not only amount with the weir Bao Bi it is aqueous can and precision, but also have common gate gear, store,
The method of the flow adjustment effect of row；A secondary mesh it is to provide achievable canal capacity adjustment, stage-discharge data are adopted automatically
Collection transmission can accomplish unattended, the product and method of realization canal capacity measurement and control integration.
To achieve the goals above, the present invention changes the fixed form of traditional sharp-crested weir, installs lifting machine at weir plate both ends
Structure is driven by elevating mechanism, so as to adjust the height of weir plate, realizes that sharp-crested weir height is adjustable.
For this purpose, this method realizes that sharp-crested weir is high by adjusting the height of weir plate the present invention provides a kind of measurement water method
Spend adjustable, when weir plate is displaced downwardly to flow control and amount water state, water flows through at the top of the weir plate, and by the control weir plate amount of moving down come
Flow is adjusted, and is provided with water-level observation point at 2~5 times of 1 upstream of the weir plate weir crest maximum head, to measure sluice head；This
When entire weir gate form a sharp-crested weir, under a certain predetermined altitude of weir plate, pass through the structure ruler of metering weir head and weir gate
It is very little, calculate the flow for flowing through weir gate.
Further, this method has following three working condition:
(1) water blocking state, under this operating condition, weir plate is all risen, the gate as a water blocking purposes；
(2) flow control and amount water state, under this operating condition, weir plate is moved down, and water flows through at the top of weir plate, flows through weir gate with measurement
Flow；
(3) draining and erosion and deposition state, under this operating condition, weir plate drop to upper limb it is concordant with canal bottom to be drained, sand surfing
Dredging operation.
Preferably, it is applied to overall with weir and at working condition (3), using in the nearly slot of the row of sufficient length, Ke Yiyong
Standard section amount water law measures flow, flow formula are as follows:
In formula: Q --- flow (m3/s)；
A --- discharge section area (m2)；
N --- canal bed roughness；
The hydraulic radius (m) of R --- the cross-section of river, R=A/X；
X --- wetted perimeter (m)；
I --- channel water face is than drop.
Preferably, this method control control weir plate amount of moving down makes 0 < H/P < 6 when this puts method applied to standard-sized sheet weir, with
An overall with weir is constituted, and calculates the formula for flowing through the flow of weir gate are as follows:
In formula: Q --- cross weir flow amount (m3/s)；
M --- discharge coefficient,
M=0.407+0.0533H/P；
B --- crest of weir width (m)；
H --- weir head (m)；
P --- weir height (m).
Preferably, because the contracted weir is equipped with side pinch wall, thering is side to receive width T at this time big when this method is applied to contracted weir
In zero, calculated using contracted weir flow formula:
In formula: Q --- cross weir flow amount (m3/s)；
m0--- discharge coefficient,
B --- the nearly width of the channel degree (m) of row；
B --- crest of weir width (m)；
H --- weir head (m)；
P --- weir height (m).
Flow formula application conditions:
H/P < 0.5,
B > 0.15m,
P > 0.10m.
The present invention also provides a kind of measurement water installations, are set among water channel, which includes: weir moving up and down
Plate, the column set on its both ends, and the lifting mechanism of the height of weir plate can be adjusted, and the canal bottom of the water channel has a weir
Plate accommodation groove is provided with water-level observation point at the weir crest maximum head of 2~5 times of the weir plate upstream can accommodate mobile weir plate, with
Measured sluice head.
Preferably, the weir plate width should be wider than water channel channel width, it is wide come out be partially installed in column water stopping trough.
Preferably, being equipped with the movable water sealing structure cooperated with the weir plate in column water stopping trough, when guaranteeing weir plate work not
From side leak, and the weir plate accommodation groove upper end is equipped with the movable sealing structure cooperated with the weir plate to avoid silt entrance.It should
Movable water sealing structure can be used finishing or other sealing modes taken (such as to add sealing structure, using rubber weather strip
Deng).
Preferably, the distance between on the inside of two columns (constituting wide weir structure) equal with water channel channel width or
Less than water channel channel width (contracted weir).
Preferably, this water channel canal bottom is arranged below settling pit, be provided in the settling pit for extracting mud submersible sewage pump out,
To guarantee the weir plate energy dive to canal bottom hereinafter, phenomena such as without plug dead, card lock occurs.
Preferably, this method and its device can be configured with remote communication module and solar electric power supply system simultaneously, it can
To realize canal capacity adjustment, the transmission of stage-discharge automatic data collection, can accomplish nothing by automatically controlling lifting weir gate height
People is on duty, realizes canal capacity measurement and control integration.
Preferably, the device is equipped with control cabinet.
Preferably, 1 width of weir plate should be 40mm~100mm wider than channel width B.
Preferably, 1 top of weir plate is crossed at water and is provided with 45 ° of sharp-edgeds, so that water can be formed surely when passing through from weir plate top
Determine overflow.
The beneficial effects of the invention are that by above-mentioned technical proposal, can overcome conventional sharp-crested weir applicable limitation requirement and
The water measure equipment of this laboratory precision grade of rectangle thin-wall weir can be applied to field and canal system by drawback, mainly be used
Rectangle thin-wall weir and gate support integrated structure form, have not only had the aqueous energy of the amount on the weir Bao Bi and precision, but also have common
Gate gear stores, the flow adjustment effect of row；It can be configured with telecommunication, solar electric power supply system simultaneously, to pass through automatic lifting
Weir gate height realizes canal capacity adjustment, the transmission of stage-discharge automatic data collection, can accomplish unattended, realization channel flow
Measure measurement and control integration.
Wherein, weir plate can the mode of vertical drop dive formula solve traditional sharp-crested weir fixed weir so that weir plate is height-adjustable
The longitudinal contraction that height is formed can optimize reasonable cross-section of river longitudinal contraction ratio (h/ according to operating flux range than limitation
P), with head loss as small as possible, reach optimal and cross flow metering state.
Detailed description of the invention
Fig. 1 is sharp-crested weir crest of weir structural schematic diagram；
Fig. 2 is observing and controlling one weir gate overall structure diagram；
Fig. 3 is operating condition of the invention (1), and weir plate all rises, water blocking status diagram；
Fig. 4 is operating condition of the invention (2), and weir plate part is risen, flow control and amount water state schematic diagram；
Fig. 5 is operating condition of the invention (3), weir plate whole dive, draining and erosion and deposition status diagram；
Fig. 6 a Fig. 6 b is that rectangle thin-wall weir water meter of the invention calculates embodiment of the method schematic diagram.
Wherein: the sealing of 1 weir plate, 2 column, 3 mechanism for lifting, 4 control cabinet, 5 canal bottom, 6 column water stopping trough, 7 canal bank, 8 accommodation groove.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing technical solution of the present invention is described in further detail.
A kind of measurement water method and device thereof of the invention provide a kind of straightforward procedure, can overcome the suitable of conventional sharp-crested weir
With limitation requirement and drawback, the water measure equipment of this laboratory precision grade of rectangle thin-wall weir can be applied to field and canal system,
It mainly uses rectangle thin-wall weir and gate to support integrated structure form (see Fig. 2), both with the aqueous energy of amount on the weir Bao Bi
And precision, and with common gate gear, storage, the flow adjustment effect arranged；Simultaneously by being configured with telecommunication, solar powered
System can be done by automatic lifting weir gate height with realizing canal capacity adjustment and the transmission of stage-discharge automatic data collection
To unattended, so that canal capacity measurement and control integration can be realized.
The present invention is directed to break through conventional sharp-crested weir to head loss, channel gradient, water body silt content application range limit
System requires, to be submerged when overcoming water existing for traditional sharp-crested weir big, water hour generate the drawbacks of blocking water, so as to improve thin-walled
The applicability of weir flow measurement.
For this purpose, being by the survey water method of existing sharp-crested weir will be using tradition the present invention provides a kind of improved method
The fixed form of sharp-crested weir, the method for being revised as being measured with the weir plate of adjustment height.
In a specific embodiment of the invention ,-Fig. 5, device provided by the invention change traditional sharp-crested weir referring to fig. 2
Fixed form, provide it is a kind of lifting mechanism 2 is installed at 1 both ends of weir plate, can be by the drive of elevating mechanism 2, so as to adjust
The height of whole weir plate 1, to realize the height-adjustable device of sharp-crested weir；The device includes weir plate 1 moving up and down, and is set to it
The column 3 at both ends, lifting mechanism 2 can be set in the column 3, be additionally provided with control cabinet 4 in this embodiment.
Wherein, which, which crosses at water, is provided with 45 ° of sharp-edgeds, so that water can form stabilization when passing through from weir plate top
Overflow；And canal bottom 5 has a weir plate accommodation groove 8 can accommodate weir plate 1 so that weir plate 1 can dive to canal bottom 5 with
Under, while sealing strip 9 should be equipped between 8 upper end of accommodation groove and weir plate 1 to avoid silt entrance；At weir plate both ends, design is vertical
Column can guarantee be installed after can form traditional sharp-crested weir needed for measuring condition, be to be marked by column and weir plate formation one
Quasi- wide weir structure；In order to ensure the sealing of moveable part, 1 width of weir plate should it is 40mm wider than channel width B~
100mm, it is wide come out be partially installed in column water stopping trough 6, finishing can be used or other sealing modes is taken (such as to add
Sealing structure, using rubber weather strip etc.), with guarantee weir plate work the leak of the side Shi Bucong；It is heavy that 5 or less the canal bottom may be provided with
Sand basin is provided with submersible sewage pump (not shown) in the settling pit, when can be used for depositing more in pond, can become silted up from its internal extraction
Mud, the preferable settling pit is connected with accommodation groove 8, and the submersible sewage pump is preferably arranged at the bottom of accommodation groove 8, to guarantee weir plate
Can dive to canal bottom hereinafter, without occur plug extremely, card lock phenomena such as；It is set at 2~5 times of 1 upstream of the weir plate weir crest maximum head
It is equipped with water-level observation point, can be high (P) according to metering head (H) and weir to measure sluice head, pass through corresponding flow formula meter
Calculated weir flow amount (Q).
There are three working conditions when the present invention uses:
(1) water blocking state.Under this operating condition, weir plate 1 is all risen, it can be used as a common gate at this time, as gear
The purposes of water.Its schematic diagram is as shown in Figure 3.
(2) flow control and amount water state.Under this operating condition, weir plate 1 is moved down, and water flows through at the top of weir plate 1, at this time can be by control
Case 4 processed adjusts flow by controlling the amount of moving down of weir plate 1；Entire weir gate forms a sharp-crested weir at this time, in a certain height of weir plate
Under degree, by measuring the structure size of weir head and weir gate, the flow for flowing through weir gate can be calculated by formula.Work shape
State signal is as shown in figure 4, equivalent measures intention as shown in Fig. 6 a and Fig. 6 b, and wherein in this specific embodiment: B=b+2T, T are
Receive width in side.In this embodiment, using B=b (overall with weir), side contraction also can be used as other embodiments
The structure on weir.
It can be public according to flow of the national standard " irrigation canal system quantities water specification " (GB/T 21303-2017) to sharp-crested weir
Formula and application conditions do following calculating:
Using overall with weir flow formula:
In formula: Q --- cross weir flow amount (m3/s)；
M --- discharge coefficient,
M=0.407+0.0533H/P；
B --- crest of weir width (m)；
H --- weir head (m)；
P --- weir height (m).
Flow formula application conditions:
0 < H/P < 6.
Weir head (H) is measured by the water-level gauge being mounted in column, the aperture that weir height (P) passes through adjusting weir plate
It measures and, weir wide (b) is a constant.Under this state can be according to weir head, adjusting weir plate aperture can be adjusted, controls simultaneously
Metered flow.
Since equipment weir height of the invention is adjustable, the reasonable cross-section of river can be optimized according to operating flux range and longitudinally received
Contracting reaches optimal and crosses flow metering state, guarantee flow measurement precision, expand than (H/P), and with head loss as small as possible
Measurement range.
In another embodiment of the present invention, it can be equipped with side pinch wall, have side to receive width T at this time and be greater than zero, use
Contracted weir flow formula calculates:
In formula: Q --- cross weir flow amount (m3/s)；
m0--- discharge coefficient,
B --- the nearly width of the channel degree (m) of row；
B --- crest of weir width (m)；
H --- weir head (m)；
P --- weir height (m).
Flow formula application conditions:
H/P < 0.5,
B > 0.15m,
P > 0.10m.
(3) draining and erosion and deposition state.Under this operating condition, it is concordant with canal bottom that weir plate drops to upper limb, can be drained, sand surfing
The operation such as dredging；It is mounted on the overall with weir in the nearly slot of row of sufficient length, can be exchanged into standard section amount water law under this operating condition.
As shown in Figure 5.
It is to be flowed according to than drop~area-method to calculate when flow shape is open channel uniform flow in open channel under the operating condition
Amount, flow formula are as follows:
In formula: Q --- flow (m3/s)；
A --- discharge section area (m2)；
N --- canal bed roughness；
The hydraulic radius (m) of R --- the cross-section of river, R=A/X；
X --- wetted perimeter (m)；
I --- channel water face is than drop (open channel uniform flow water surface gradient=canal bottom is than drop).
A kind of measurement water method and device thereof of the invention can be configured with remote communication module and solar powered system simultaneously
System can go up and down weir gate height by automatically controlling, and realize that canal capacity adjustment, stage-discharge automatic data collection pass
It is defeated, it can accomplish unattended, realization canal capacity measurement and control integration.
The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, although referring to above-described embodiment pair
The present invention is described in detail, it should be understood by a person of ordinary skill in the art that still can be to of the invention specific
Embodiment is modified or replaced equivalently, and without departing from any modification of spirit and scope of the invention or equivalent replacement,
It is intended to be within the scope of the claims of the invention.
Claims (10)
1. a kind of measurement water method, which is characterized in that this method realizes that sharp-crested weir height is adjustable by adjusting the height of weir plate,
When weir plate is displaced downwardly to flow control and amount water state, water flows through at the top of weir plate, and stream is adjusted by the control weir plate amount of moving down
Amount, and water-level observation point is provided at 2~5 times of 1 upstream of the weir plate weir crest maximum head, to measure sluice head；It is entire at this time
Weir gate forms a sharp-crested weir, under a certain predetermined altitude of weir plate, by measuring the structure size of weir head and weir gate, calculates
The flow of weir gate is flowed through out.
2. a kind of 1 measurement water method according to claim, which is characterized in that this method has following three work shape
State:
(1) water blocking state, under this operating condition, weir plate is all risen, the gate as a water blocking purposes；
(2) flow control and amount water state, under this operating condition, weir plate is moved down, and water flows through at the top of weir plate, to measure the stream for flowing through weir gate
Amount；
(3) draining and erosion and deposition state, under this operating condition, weir plate drop to upper limb it is concordant with canal bottom to be drained, sand surfing dredging
Operation.
3. a kind of 2 measurement water method according to claim, which is characterized in that when the sharp-crested weir is weir gate width and canal
When the identical overall with weir of road width, the nearly slot of row of sufficient length can be utilized in working condition (3), standard section amount water law can be used
Measure flow, flow formula are as follows:
In formula: Q --- flow (m3/s)；
A --- discharge section area (m2)；
N --- canal bed roughness；
The hydraulic radius (m) of R --- the cross-section of river, R=A/X；
X --- wetted perimeter (m)；
I --- channel water face is than drop.
4. a kind of 1 measurement water method according to claim, it is characterised in that:
When this method is applied to overall with weir, the control control weir plate amount of moving down makes 0 < H/P < 6, constitutes an overall with weir, and calculate
The formula of the flow of weir gate is flowed through out are as follows:
In formula: Q --- cross weir flow amount (m3/s)；
M --- discharge coefficient,
M=0.407+0.0533H/P；
B --- crest of weir width (m)；
H --- weir head (m)；
P --- weir height (m).
5. a kind of measurement water method described in 1 or 2 according to claim, when being applied to contracted weir, it is characterised in that:
Because the contracted weir is equipped with side pinch wall, there is side to receive width T at this time and is greater than zero, calculated using contracted weir flow formula:
In formula: Q --- cross weir flow amount (m3/s)；
m0--- discharge coefficient,
B --- the nearly width of the channel degree (m) of row；
B --- crest of weir width (m)；
H --- weir head (m)；
P --- weir height (m).
Flow formula application conditions:
H/P < 0.5,
B > 0.15m,
P > 0.10m.
6. a kind of measurement water installations, it is set among water channel, which is characterized in that the device includes: weir plate moving up and down, is set to
The column at its both ends, and the lifting mechanism of the height of weir plate can be adjusted, and the weir plate that has at the canal bottom of the water channel accommodates
Slot is provided with water-level observation point at the weir crest maximum head of 2~5 times of the weir plate upstream, to measure can accommodate mobile weir plate
Sluice head.
7. 6 a kind of measurement water installations according to claim, which is characterized in that the weir plate width should be than water channel channel width
Width, it is wide come out be partially installed in column water stopping trough.
8. 7 a kind of measurement water installations according to claim, which is characterized in that be equipped in column water stopping trough and match with the weir plate
The movable water sealing structure of conjunction, to guarantee the weir plate work side Shi Bucong leak, and the weir plate accommodation groove upper end is equipped with and the weir plate
The movable sealing structure of cooperation is to avoid silt entrance.
9. 6 a kind of measurement water installations according to claim, which is characterized in that the distance between on the inside of two columns
It is equal with water channel channel width or be less than water channel channel width.
10. 6 a kind of measurement water installations according to claim, which is characterized in that water channel canal bottom is arranged below desilting for this
Pond is provided with for extracting mud submersible sewage pump out in the settling pit, to guarantee the weir plate energy dive to canal bottom or less.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700192A (en) * | 2019-11-15 | 2020-01-17 | 中国水利水电科学研究院 | Constant-flow water discharge weir and initial state setting method thereof |
| CN110714509A (en) * | 2019-11-15 | 2020-01-21 | 中国水利水电科学研究院 | Constant-current water replenishing system and method for river mouth and beach area of sediment-laden river |
| CN112052545A (en) * | 2020-08-25 | 2020-12-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Urban surface runoff and pipe network confluence coupling method based on cellular automaton |
| CN113532589A (en) * | 2021-08-03 | 2021-10-22 | 新疆云智润科技有限公司 | Water measuring system |
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| CN110700192A (en) * | 2019-11-15 | 2020-01-17 | 中国水利水电科学研究院 | Constant-flow water discharge weir and initial state setting method thereof |
| CN110714509A (en) * | 2019-11-15 | 2020-01-21 | 中国水利水电科学研究院 | Constant-current water replenishing system and method for river mouth and beach area of sediment-laden river |
| CN112052545A (en) * | 2020-08-25 | 2020-12-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Urban surface runoff and pipe network confluence coupling method based on cellular automaton |
| CN112052545B (en) * | 2020-08-25 | 2021-10-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Urban surface runoff and pipe network confluence coupling method based on cellular automaton |
| CN113532589A (en) * | 2021-08-03 | 2021-10-22 | 新疆云智润科技有限公司 | Water measuring system |
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