CN206428066U - A kind of ecological canal and farm irrigation system - Google Patents
A kind of ecological canal and farm irrigation system Download PDFInfo
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- CN206428066U CN206428066U CN201621489974.1U CN201621489974U CN206428066U CN 206428066 U CN206428066 U CN 206428066U CN 201621489974 U CN201621489974 U CN 201621489974U CN 206428066 U CN206428066 U CN 206428066U
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- ecological canal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
A kind of ecological canal, it is related to field of ecological agricultural, the ecological canal includes bottom wall and the first side wall being oppositely arranged and second sidewall, bottom wall kind is implanted with water plant, the ecological canal is arranged at intervals with multiple spoilers for changing the direction of a stream of water along current direct of travel, and any one of bottom wall, the first side wall and second sidewall was provided with water space between spoiler.The ecological canal strong shock resistance, water velocity is slowed down by spoiler to the obstruction of current, so as to play more preferable protective effect to water plant.The ecological canal is particularly suitable for using industrial crops as water purification with water plant, and it can provide stable growing environment for industrial crops, it is ensured that stable economic well-being of workers and staff.The utility model additionally provides a kind of farm irrigation system for including above-mentioned ecological canal, and it can withstand strong hydrodynamic wash away, it is ensured that the wherein survival rate of water plant, persistently carries out purification recycling to the water body rich in N, P, realizes the purpose of water-saving and environmental protection.
Description
Technical field
The utility model is related to field of ecological agricultural, in particular to a kind of ecological canal and farm irrigation system.
Background technology
In modern agricultural production, chemical fertilizer and agricultural chemicals play highly important role.And along with chemical fertilizer and agricultural chemicals
The increase of usage amount, the water pollution that its element such as N, P remained is caused is also increasingly severe.
Ecological canal is a kind of processing sewage for carrying out absorption cleaning to elements such as N, P in water body using water plant
Method, it has, and setting is simple, clean-up effect is obvious, advantages of environment protection, causes the extensive concern in industry.
At present, the Patents on ecological canal are a lot, but most research is all concentrated on to its purification mechanism
And the research of the clean-up effect of different water plants, and the research designed for irrigation canals and ditches concrete form is less.Moreover, existing
Design, this ecology when the research of ecological canal is essentially all for plains region, without stronger current process
Irrigation canals and ditches do not have very strong erosion resistibility, not enough to water plant protective capability therein, encounter the precipitation such as flood season feelings
Condition is, it is possible that water plant is flushed away the situation of damage.Ecological canal needs aquatic plants growth to a certain extent
Can possess enough detergent powers, once destroying water plant therein by current, it is desirable to shaping needs longer week again
Phase, it is unfavorable for agricultural production, is likely to result in indirect economic loss.Also, many water plants inherently belong to industrial crops
One kind, the direct losses that it is caused are equally very important.Therefore, design a kind of rational in infrastructure, erosion resistibility can be lifted
Novel ecological irrigation canals and ditches it is very necessary.
Utility model content
The purpose of this utility model is to provide a kind of ecological canal that its rational in infrastructure, simple structure can slow down current
Speed, possesses good erosion resistibility, can play more preferable protection to water plant therein.
Another object of the present utility model is to provide a kind of farm irrigation system, and it includes above-mentioned ecological canal, its energy
Enough withstand strong hydrodynamic wash away, it is ensured that the wherein survival rate of water plant, persistently the water body rich in N, P is purified simultaneously
Recycle, realize the purpose of water-saving and environmental protection.
What embodiment of the present utility model was realized in：
A kind of ecological canal, including bottom wall and the first side wall and second sidewall being oppositely arranged, bottom wall kind are implanted with aquatic plant
Thing, ecological canal is provided with multiple spoilers for changing the direction of a stream of water, bottom wall, the first side wall and along current direct of travel
Any one of two side walls were provided with water space between spoiler.
Further, in the other preferred embodiments of the utility model, spoiler is across ecological canal and connects the first side
The sedimentation basin that water supply stream passes through is provided with below wall and second sidewall, spoiler, the lower edge of spoiler is concordant with bottom wall or stretches
Enter into sedimentation basin.
Further, in the other preferred embodiments of the utility model, stone or haydite are accommodated in sedimentation basin.
Further, in the other preferred embodiments of the utility model, spoiler is arranged at the first side wall/second sidewall,
And extend along the width of ecological canal, the length of spoiler is more than the half of the width of ecological canal and less than ecological ditch
At least provided with a spoiler in the width of canal, the first side wall and second sidewall.
Further, in the other preferred embodiments of the utility model, along water (flow) direction, multiple spoilers are alternately disposed at
The first side wall and second sidewall.
Further, in the other preferred embodiments of the utility model, multiple spoilers are along gap distributions such as water (flow) directions.
Further, in the other preferred embodiments of the utility model, 3~10m is spaced between two neighboring spoiler.
Further, in the other preferred embodiments of the utility model, it is provided with the first side wall and second sidewall many
The slot that individual confession spoiler is inserted and removed from.
Further, in the other preferred embodiments of the utility model, water plant be yellow flag, rush, thaliadeabata,
Any of iris etc., oenanthe stolonifera, swamp cabbage, wild rice stem and edible seaweed.
A kind of farm irrigation system, including above-mentioned ecological canal.
The beneficial effect of the utility model embodiment is：A kind of ecological canal provided by the utility model, in current
Multiple spoilers are provided with conduct direction.The ecological canal strong shock resistance, especially in flood season, the situation that The turbulent river crashes its way through
Under, water velocity is slowed down to the obstruction of current by spoiler, so as in the case where current are too urgent to water plant
Play a very good protection, it is to avoid rapid stream causes irremediable injury to water plant, influence ecological canal
Purification function.The ecological canal is particularly suitable for using industrial crops as water purification with water plant, its excellent erosion resistibility,
Stable growing environment can be provided for industrial crops, it is ensured that stable economic well-being of workers and staff.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
A kind of partial schematic diagram for ecological canal that Fig. 1 is provided by the utility model first embodiment；
A kind of sectional view for ecological canal that Fig. 2 is provided by the utility model first embodiment；
A kind of partial schematic diagram for ecological canal that Fig. 3 is provided by the utility model second embodiment；
Guarantor of the ecological canal to water plant therein in three pieces of experimental plots that Fig. 4 is provided by the utility model test example
Protect in the comparison diagram of effect, figure, A represents the test result in experimental plot one, B represents the test result in experimental plot two, and C represents experiment
The test result in field three.
In figure：100- ecological canals；110- bottom walls；120- the first side walls；130- second sidewalls；140- channels；150- water
Plant；160- spoilers；170- sedimentation basins；200- ecological canals；210- bottom walls；220- the first side walls；230- second sidewalls；
240- channels；250- water plants；260- spoilers；280- slots.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
Accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, and shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in new, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of the utility model protection.Therefore, implementation of the present utility model below to providing in the accompanying drawings
The detailed description of mode is not intended to limit claimed scope of the present utility model, but is merely representative of of the present utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under the premise of dynamic, belongs to the scope of the utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ",
The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for
It is easy to description the utility model and simplifies describe, rather than to indicate or imply that signified equipment or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
" under " can directly be contacted including the first and second features, it is not direct contact but logical that can also include the first and second features
The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height higher than second feature.First is special
Levy second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only
Represent that fisrt feature level height is less than second feature.
First embodiment
The present embodiment provides a kind of ecological canal 100, as shown in figure 1, it includes bottom wall 110 and the first side being oppositely arranged
Wall 120 and second sidewall 130, bottom wall 110, the first side wall 120 and second sidewall 130 are collectively forming the channel that water supply stream passes through
140。
As shown in figure 1, the cross section of ecological canal 100 is in inverted isosceles trapezoid, the first side wall 120 and second sidewall
130 and the angle of bottom wall 110 are 40~80 °.In bottom wall, 110 kinds are implanted with water plant 150, and bottom wall 110 uses rammed earth, but
Any cure process should not be done, keeps the soft of soil to be beneficial to the growth of water plant 150.The first side wall 120 and second
Side wall 130 equally uses rammed earth, and spreads ecological brick or ventilative geomembrane earth bag after compacting, to prevent soil landslide from blocking
Channel 140.It is worth noting that, in the utility model other embodiments, the cross section of ecological canal 100 can also be square
Shape, the first side wall 120 and second sidewall 130 keep vertical with bottom wall 110, and it is tight that such ecological canal 100 is relatively adapted to space
The environment gathered, while it is noted that the first side wall 120 and second sidewall 130 are reinforced, to prevent soil from collapsing.
As depicted in figs. 1 and 2, the length of whole ecological canal 100 is not less than 30m, and kind is implanted with aquatic on its bottom wall 110
Plant 150, water plant 150 can be in yellow flag, rush, thaliadeabata, iris, oenanthe stolonifera, swamp cabbage, wild rice stem and edible seaweed
At least one.These water plants more than 150 are based on industrial crops, and while N, P in absorbing current, it can be regular
Harvested, realize economic well-being of workers and staff.Meanwhile, periodically the water plant 150 in ecological channel 140 is updated also be avoided that by
The death of water plant 150 is degenerated and causes secondary pollution.The present embodiment by taking oenanthe stolonifera as an example, in channel 140 every meter plantation 8~
10 plants, planting density reaches 60~80 plants/m2.It is worth noting that, the planting density of water plant 150, which crosses conference, influences aquatic
The growth of plant 150, and planting density is too small that detergent power can be caused not enough, the size of specific planting density should be according to tool
The floristics of body is adjusted and carries out repeatedly attempting to obtain.Further, in the other preferred embodiments of the utility model,
It can also use a variety of mixed plantings of water plant 150, using difference of the different water plants 150 on space hold, come
Cooperate plantation, optimizes space configuration.It is equally possible that according to the different growth characteristics of different water plants 150, utilizing
Different plants 150 is separated and planted by spoiler 160, convenient unified sowing, unified harvesting, to reduce cost of labor.
As depicted in figs. 1 and 2, the ecological canal 100 is provided with multiple for changing the direction of a stream of water along current direct of travel
Spoiler 160, it is preferable that multiple spoilers 160 such as can be at the gap distribution, and water plant 150 is separated small one by one
Growth district in.The distance between two neighboring spoiler 160 is 3~10m, for the small-sized ecological canal in general farmland
100,3~5m distance.In the present embodiment, spoiler 160 is across ecological canal 100 and connects the He of the first side wall 120
Second sidewall 130.The upper limb of spoiler 160 is higher than the top of the first side wall 120 and second sidewall 130 and extended to outside irrigation canals and ditches.
The lower section of spoiler 160 sets sedimentation basin 170, and the chamber included by sedimentation basin 170 is between spoiler 160 and bottom wall 110
Cross water space (not indicating).When current reach spoiler 160, sedimentation basin can only be downwardly into by the obstruction of spoiler 160
170, to bypass the flow further downstream of spoiler 160.It is worth noting that, in the other preferred embodiments of the utility model, flow-disturbing
The lower edge of plate 160 can be suitably extend into sedimentation basin 170, to extend the operating path of current, increase the stop of spoiler 160
Effect.Current by when, the stop of spoiler 160 can effectively slow down the speed of current, and reduction current are to water plant 150
Impact dynamics, more stable growing space is brought to water plant 150.In addition, current are downwardly into sedimentation basin 170, pass through
A large amount of suspensions in current can be removed from settlement action, can equally play a part of purifying current.Preferably, can be heavy
Stone or haydite are placed in shallow lake pond 170, to increase the interception to suspension, strengthened purification effect.
Second embodiment
The present embodiment provides a kind of ecological canal 200, as shown in figure 3, it includes bottom wall 210 and the first side being oppositely arranged
Wall 220 and second sidewall 230, bottom wall 210, the first side wall 220 and second sidewall 230 are collectively forming the channel that water supply stream passes through
240。
As shown in figure 3, the cross section of ecological canal 200 is in inverted isosceles trapezoid, the first side wall 220 and second sidewall
230 and the angle of bottom wall 210 are 40~80 °.In bottom wall, 210 kinds are implanted with water plant 250, and bottom wall 210 uses rammed earth, but
Any cure process should not be done, keeps the soft of soil to be beneficial to the growth of water plant 250.The first side wall 220 and second
Side wall 230 equally uses rammed earth, and spreads ecological brick or ventilative geomembrane earth bag after compacting, to prevent soil landslide from blocking
Channel 240.
As shown in figure 3, the length of whole ecological canal 200 is not less than 30m, is planted on its bottom wall 210 and be implanted with water plant
250, water plant 250 can be yellow flag, rush, thaliadeabata, iris, oenanthe stolonifera, swamp cabbage, wild rice stem and edible seaweed in extremely
Few one kind.These water plants more than 250 are based on industrial crops, and while N, P in absorbing current, it can periodically be carried out
Harvest, realizes economic well-being of workers and staff.Meanwhile, periodically the water plant 250 in ecological channel 240 is updated and is also avoided that by aquatic
The death of plant 250 is degenerated and causes secondary pollution.The present embodiment is by taking oenanthe stolonifera as an example, every meter of plantation 8~10 in channel 240
Strain, planting density reaches 60~80 plants/m2。
As shown in figure 3, the ecological canal 200 is provided with multiple flow-disturbings for changing the direction of a stream of water along current direct of travel
Plate 260, it is preferable that multiple spoilers 260 such as can be at the gap distribution, and water plant 250 is separated in growth small one by one
In region.The distance between two neighboring spoiler 260 is 3~10m, for the small-sized ecological canal 200,3 in general farmland
~5m distance.In the present embodiment, spoiler 260 is arranged at the first side wall 220 or second sidewall 230, and along life
The width extension of state irrigation canals and ditches 200.The length of spoiler 260 is more than the half of the width of ecological canal 200 and less than ecology
The overall width of irrigation canals and ditches 200, irrigation canals and ditches are not completely enclosed while current are hindered, in spoiler 260 and the first side wall 220 or the
Water space (not indicating) was formed between two side walls 230, allows current to bypass spoiler 260 from the lateral flow of spoiler 260
Cross.In order to preferably play a part of flow-disturbing, all spoilers 260 can not be arranged at the first side wall 220 simultaneously or while set
In in second sidewall 230, namely the first side wall 220 and second sidewall 230 at least provided with a spoiler 260.Preferably,
In the present embodiment, multiple spoilers 260 are alternately disposed at the first side wall 220 and second sidewall 230 along water (flow) direction.
In the present embodiment, can only be from spoiler 260 by the obstruction of spoiler 260 when current reach spoiler 260
Side is bypassed, simultaneously as spoiler 260 is alternately disposed on the first side wall 220 and second sidewall 230, thus the meeting of water with
" S " type track is flowed, and greatly extends the path of current.The stop of multiple spoilers 260 can effectively slow down current
Speed, reduction current bring more stable growing space to water plant 250 to the impact dynamics of water plant 250.
Preferably, as shown in figure 3, in the present embodiment, being provided with the first side wall 220 and second sidewall 230 many
The slot 280 that individual confession spoiler 260 is inserted and removed from.Such design, can facilitate spoiler 260 is taken out safeguarded or
It is that the spoiler 260 of damage is replaced in time, to ensure the clean-up effect of whole ecological canal 200.The first side wall 220 or
The quantity of slot 280 can be significantly more than the quantity of spoiler 260 in second sidewall 230, so as in actual use, according to tool
Body situation adjusts the position of spoiler 260, in the place that The turbulent river crashes its way through, can set spoiler 260 more compact, and
In the place that the water flows gently, then can set spoiler 260 must be than sparse.Simultaneously as the side of the first side wall 220 and second
Include multiple idle slots 280 on wall 230, script can also be located at the spoiler 260 on the first side wall 220 and put by us
In in second sidewall 230, or script is located at into the spoiler 260 in second sidewall 230 is placed on the first side wall 220, to add
The blocking capability of strong localized region.Because the growing state of each plant of water plant 250 is not quite similar, partly grow strong,
Part grows thin and weak, and this timely adjustment is particularly important in the way of strengthening localised protection dynamics.Certainly, we can equally lead to
The quantity of increase spoiler 260 is crossed to reach same purpose.
Test example
In order to verify that a kind of ecological canal 100 that first embodiment provided and one kind that second embodiment is provided are ecological
The practical effect of irrigation canals and ditches 200, we have chosen three pieces and are separated by not far experimental plot, and the area in three pieces of experimental plots is
5000m2, all sewerages in experimental plot one use the ecological canal 100 that first embodiment is provided, experimental plot two it is all
Sewerage uses the ecological canal 200 that first embodiment is provided, and all sewerages in experimental plot three, which are used, is free of flow-disturbing
The common ecological canal of plate.
Test site is selected before River, on-test, gives three stabilizations of the ecological canal more than 1 year
Molding time.Test period is 5,6, rainwater in July most sufficient period, monthly the end of month randomly choose 5 in each ecological canal
Individual area is 10m2Region, and count 5 regions in water plant coverage condition, average and contrasted.Its is right
It is more as shown in table 1 than result.
Each ecological canal water plant coverage rate statistics of table 1
As it can be seen from table 1 due to flood season, The turbulent river crashes its way through, larger to the water plant impact in ecological canal, three pieces of examinations
The water plant coverage rate tested in the ecological canal in field has obvious reduction, the average coverage rate comparison diagram such as Fig. 4 in each experimental plot
It is shown.The ecological canal in experimental plot one and experimental plot two shows preferable protective effect to water plant therein, by 3
Washing away for the moon, still is able to keep more than 70% coverage rate.Comparatively speaking, the common ecological canal that experimental plot three is used, but
Fail to protect the water plant in it well, by 3 months wash away, coverage rate was less than 60%.From the point of view of clean-up effect, water
The reduction of plant coverage rate will necessarily influence the detergent power of ecological canal, meanwhile, if dead water plant is clear not in time
, can be to water body formation secondary pollution after corruption if removing, N, P content have increased trend on the contrary, and frequently clear up death
Water plant will certainly bring the increase of cost of labor again.Therefore, ecological canal of the development with stronger erosion resistibility just shows
Obtain very necessary.
In summary, a kind of ecological canal provided by the utility model, is provided with multiple on the conduct direction of current
Spoiler.The ecological canal strong shock resistance, especially in flood season, in the case that The turbulent river crashes its way through, by spoiler to current
Hinder to slow down water velocity, so as to be played a very good protection in the case where current are too urgent to water plant, keep away
Exempt from rapid stream and irremediable injury is caused to water plant, influence the purification function of ecological canal.The ecological canal is special
It is not suitable for using industrial crops as water purification with water plant, its excellent erosion resistibility can be provided surely for industrial crops
Fixed growing environment, it is ensured that stable economic well-being of workers and staff.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of ecological canal, including bottom wall and the first side wall and second sidewall that are oppositely arranged, the bottom wall kind is implanted with aquatic
Plant, it is characterised in that the ecological canal is arranged at intervals with multiple for disturbing for changing the direction of a stream of water along current direct of travel
Plate is flowed, any one of the bottom wall, the first side wall and the second sidewall was provided with water between the spoiler
Gap.
2. ecological canal according to claim 1, it is characterised in that the spoiler is across the ecological canal and connects
The sedimentation basin that water supply stream passes through, the flow-disturbing are provided with below the first side wall and the second sidewall, the spoiler
The lower edge of plate is concordant with the bottom wall or extend into the sedimentation basin.
3. ecological canal according to claim 2, it is characterised in that stone or haydite are accommodated in the sedimentation basin.
4. ecological canal according to claim 1, it is characterised in that the spoiler is arranged at the first side wall/institute
Second sidewall is stated, and is extended along the width of the ecological canal, the length of the spoiler is more than the ecological canal
Width half and less than the ecological canal width, the first side wall and the second sidewall are at least provided with one
The individual spoiler.
5. ecological canal according to claim 4, it is characterised in that along water (flow) direction, multiple spoilers are alternately set
It is placed in the first side wall and the second sidewall.
6. ecological canal according to claim 1, it is characterised in that multiple spoilers divide along gaps such as water (flow) directions
Cloth.
7. ecological canal according to claim 6, it is characterised in that it is spaced 3 between the two neighboring spoiler~
10m。
8. ecological canal according to claim 1, it is characterised in that be all provided with the first side wall and the second sidewall
It is equipped with multiple slots being inserted and removed from for the spoiler.
9. ecological canal according to claim 1, it is characterised in that the water plant is yellow flag, again rush, power
Any of flower, iris, oenanthe stolonifera, swamp cabbage, wild rice stem and edible seaweed.
10. a kind of farm irrigation system, it is characterised in that including the ecological canal as described in any one of claim 1~9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201621489974.1U CN206428066U (en) | 2016-12-30 | 2016-12-30 | A kind of ecological canal and farm irrigation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621489974.1U CN206428066U (en) | 2016-12-30 | 2016-12-30 | A kind of ecological canal and farm irrigation system |
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| Publication Number | Publication Date |
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| CN206428066U true CN206428066U (en) | 2017-08-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442328A (en) * | 2018-03-06 | 2018-08-24 | 张超 | A kind of water conservancy rhone |
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2016
- 2016-12-30 CN CN201621489974.1U patent/CN206428066U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442328A (en) * | 2018-03-06 | 2018-08-24 | 张超 | A kind of water conservancy rhone |
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Granted publication date: 20170822 Termination date: 20171230 |