CN106759179B - Irrigation water diversion gate combined with high-low gate and method for improving soil by irrigation - Google Patents
Irrigation water diversion gate combined with high-low gate and method for improving soil by irrigation Download PDFInfo
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- CN106759179B CN106759179B CN201710030559.2A CN201710030559A CN106759179B CN 106759179 B CN106759179 B CN 106759179B CN 201710030559 A CN201710030559 A CN 201710030559A CN 106759179 B CN106759179 B CN 106759179B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems
- E02B13/02—Closures for irrigation conduits
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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Abstract
The invention discloses an irrigation diversion gate combined with a high-low gate and a method for improving soil by irrigation, wherein the diversion gate comprises the following components: the device comprises a high gate positioned at the front end, a low gate positioned at the rear end and an opening and closing device for controlling the high gate and the low gate; wherein, the front end refers to a position close to the upstream, and the rear end refers to a position close to the downstream; the opening and closing equipment is used for opening or closing the high gate and the low gate; the height of the high gate is higher than the upstream water level, and the height of the low gate is lower than the upstream water level. The irrigation water diversion gate combined by the high-low gate and the method for improving the soil by irrigation, disclosed by the invention, can improve the existing gate, so that the whole gate system is extremely simple and convenient to manufacture, install, debug and use, and the soil quality of the soil in an irrigation area is greatly improved by soil testing and sand distribution and scientific water and sand scheduling.
Description
Technical Field
The invention relates to the technical field of irrigation, in particular to an irrigation diversion gate combined by high and low gates and a method for improving soil by irrigation.
Background
Currently, the problem of soil quality degradation has been generally concerned by experts and scholars of soil in various countries. Land is an important resource of China as a big agricultural country and is the basis of grain safety. The soil degradation problem is researched as early as 50 years in China, but the research on the soil degradation has great limitation on the range and depth until now. For the irrigation area of the river with much sand, the method realizes scientific utilization and improvement of irrigation soil by silt, prevents desertification degradation of the soil, improves the bearing capacity of the soil in the irrigation area, and has extremely important significance for sustainable development of the irrigation area. The yellow river diversion irrigation areas are mostly built in the fifth and sixty years of the last century in China, water diversion and sand diversion are performed for more than half a century, and the amount of mud and sand entering fields is more and more. At present, the general theory of leading yellow can carry out silting and improving on the land. But what is the quantitative influence of the more and more field-entering sediment on the texture, structure and fertility of the soil in the irrigation area? Is the mud and sand entering the field have a continuous improvement effect on the quality of the soil? Is there a potential tendency to cause desertification degradation of soil? How to scientifically adjust water and mix sand so as to help continuously improve soil quality and prevent and control field soil desertification degradation? There is currently a lack of monitoring and research on these problems.
Although some devices capable of achieving layered water taking exist at present, on one hand, the existing devices are used for different water layers, and the improvement effect of different sand grains on soil is not considered; on the other hand, these devices or systems of gates are either complex and difficult to control; or the installation and debugging process is complicated, which is not beneficial to the transformation of the prior gate and can cause huge resource waste. Therefore, the inventor finds that the prior art has at least the following defects in the process of implementing the invention: the complexity of the equipment results in difficulties in manufacturing, installation and debugging and cannot be matched with existing gate systems.
Disclosure of Invention
In view of this, the present invention provides an irrigation diversion gate combined with a high-low gate and a method for improving soil by irrigation, which can improve the existing gate, so that the whole gate system is very simple and convenient to manufacture, install, debug and use.
Based on the above purpose, the invention provides an irrigation diversion gate combined with a high-low gate, comprising: the device comprises a high gate positioned at the front end, a low gate positioned at the rear end and an opening and closing device for controlling the high gate and the low gate; wherein, the front end refers to a position close to the upstream, and the rear end refers to a position close to the downstream; the opening and closing equipment is used for opening or closing the high gate and the low gate; the height of the high gate is higher than the upstream water level, and the height of the low gate is lower than the upstream water level.
Optionally, the low gate and/or the high gate are height-adjustable gates, and are used for adjusting the height of water taken by the water diversion gate by adjusting the height of the low gate and/or the high gate.
Optionally, the low gate comprises a plurality of groups of gates arranged in a height-from-low sequence, and the plurality of groups of gates can be independently controlled, so that the height of the gate can be adjusted by selecting the lifted gate and the retained gate.
Optionally, the low gates include multiple layers of gates connected in sequence, and the connection relationship is detachable connection; the height of the gate is adjusted by selecting the layer number of the extraction gate.
Optionally, the distribution gate further includes a sand monitoring device, and the sand monitoring device is configured to monitor sand contents and corresponding sand sizes of different water levels or water layers, and feed back a monitoring result to the opening and closing device, so that the opening and closing device controls opening and closing states of the high gate and the low gate according to different irrigation requirements.
In another aspect, the present invention provides a method for improving soil by irrigation combined with a high-low gate, comprising:
according to the characteristics of the downstream soil, acquiring the height of a water layer corresponding to the size of the sediment particles required by the downstream soil;
and setting a control instruction of the opening and closing device according to the required height of the water layer, so that the water sand with the required height of the water layer can be introduced into the downstream soil in the starting state of the high gate and the low gate.
Optionally, the starting and stopping device controls the starting of the low gate first, and then controls the starting of the high gate.
Optionally, when the downstream soil is sandy soil with relatively coarse grains, the opening and closing device controls the low gate to be closed, so that the high gate is lifted, and then the sand grains with relatively fine grains on the middle surface layer of the upstream water are introduced into the downstream soil; when the downstream soil is the clay soil with smaller particles, the opening and closing device controls the low gate and the high gate to be opened and lifted, and then the sand particles with thicker particles at the bottom layer of the upstream water are introduced into the downstream soil. The height combination of the specific opening of the irrigation water dividing gate used in the height combined application is determined by the height of a water layer where the size of sand grains required by the irrigation soil improvement is located.
From the above, the irrigation diversion gate combined by the high-low gate provided by the invention is characterized in that the lower gate with lower height is arranged at the rear end of the common high gate, and then water and sand taking are realized for water layers with different heights through the combined application of the high-low gate, so that the whole gate system is very easy to realize, control and debug, and for the existing gate system, the water taking and sand taking can be realized completely and directly by arranging the low gate at the rear end of the gate, namely, the gate system for taking water in layers can be realized on the basis of not damaging the existing gate system, and the efficiency and the effect of taking water and sand are improved. The method for improving the soil by irrigation is combined with soil and water sand monitoring results, soil testing and sand mixing are implemented, water sand is scientifically scheduled through the improved water diversion gate, and the purposes that the cohesive soil calls bottom-lower coarse sand and the sandy soil calls surface-upper fine sand to improve the soil structure, improve the soil quality, improve the bearing capacity of the land resources in the irrigation area and realize efficient and continuous utilization of the land resources in the irrigation area are achieved. Therefore, the irrigation diversion gate combined with the high-low gate and the method for improving the soil by irrigation can improve the existing gate, so that the whole gate system is extremely simple and convenient to manufacture, install, debug and use, and the quality of the soil in an irrigation area is greatly improved, the bearing capacity of the soil in the irrigation area is improved, and the sustainable development of the irrigation area is promoted by soil testing and sand distribution and scientific water and sand dispatching.
Drawings
FIG. 1 is a schematic structural view of an embodiment of an irrigation diversion gate combined with a high-low gate provided by the present invention;
FIG. 2 is a schematic structural view of an embodiment of a low gate in an irrigation diversion gate combined with a high-low gate according to the present invention;
fig. 3 is a schematic structural view of another embodiment of a low gate in an irrigation diversion gate combined with a high-low gate provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
In view of the existing gate design, the inventor finds that the gate system in the prior art is extremely complicated in structure, is not easy to implement and improves the existing gate, and on the other hand, the prior art is directed to the utilization of water layer, and the final improvement effect is not as ideal as expected. The inventor finds that the improvement effect of different sand grains on the soil of the irrigation area cannot be ignored for many yellow river diversion irrigation areas at present, so that the inventor designs a simple water diversion gate aiming at the problem, the water diversion gate is extremely easy to realize, and the existing gate system can be directly improved, so that time and labor are saved. In addition, soil and water and sand are monitored, so that water and sand can be scientifically and reasonably adjusted, and soil in an irrigation area can be accurately improved.
In a specific embodiment, the invention relates to a method for accurately improving soil structure by scientifically utilizing muddy water sediment and a device for correspondingly realizing the method, namely the method is realized by monitoring soil and water sediment and utilizing the combined application of a novel irrigation diversion gate jointly applied by high and low gates, wherein the diversion gate comprises front and rear high and low gates, a gate chamber, an opening and closing device, a post-gate energy dissipation facility and other supporting devices. The method is designed mainly for realizing scientific layered utilization of silt to improve and irrigate soil in a diversion gate of a channel of a yellow river diversion irrigation area or other sediment-diversion river irrigation areas. The water diversion gate can realize scientific water diversion and sand diversion, and the soil quality is accurately improved by monitoring the soil structure and irrigation water and sand and implementing soil testing and sand distribution. According to the monitoring result of the soil cohesive soil structural property of the irrigation plots and the monitoring result of the size of the water sand particles of the yellow river, muddy water with different corresponding sand contents and particle sizes of different water layers is obtained by the water dividing gate, water sand is scientifically dispatched, water sand nutrient particles needed by the irrigation plots are distributed, the soil structure is improved, the water-retaining and air-permeable performance of the soil is improved, the soil fertility is increased, the desertification of the soil in muddy water irrigation areas is prevented or repaired, the soil bearing capacity of the irrigation areas is increased, and the sustainable development of the sandy irrigation areas is promoted. For example: when the irrigated plot soil is sandy soil with thicker particle size and poorer water and fertilizer retention, the water diversion gate can be used for only lifting the front high gate above the water surface, the rear low gate intercepts the coarse particle sediment of the lower layer, and the sand with lower sand content and smaller particle size on the partial surface layer is introduced into the field along with water for irrigation, so that the structure of the sandy soil can be improved, and the water and fertilizer retention of the soil can be improved; on the contrary, when the irrigated land soil is the viscous soil with fine grain diameter and poor air permeability, the engineering technical device can be utilized to lift the front and back high-low gates to proper heights at the same time, and introduce the sand grains with higher sand content and larger sand grain diameter on the bottom layer into the field along with water for irrigation, so that the slightly sticky soil can be improved, and the air permeability of the soil is increased. The water diversion gate has wide popularization value in the scientific utilization of the sediment in the irrigation area of the sediment-laden river in the field, the improvement of the soil quality and the pre-control of the soil desertification. The structure is simple, the application is flexible, the sand is scientifically introduced into the sandy irrigation areas including the yellow-guiding irrigation areas to improve and irrigate soil, and the benefits are exerted for a long time, so that the method has great economic benefits, ecological benefits and social benefits.
Referring to fig. 1, there is shown a schematic structural diagram of an embodiment of an irrigation diversion gate combined with a high-low gate provided by the present invention. The irrigation diversion gate that high-low gate jointly used includes: the gate structure comprises a high gate 1 positioned at the front end, a low gate 2 positioned at the rear end and an opening and closing device 3 used for controlling the high gate and the low gate; wherein, the front end refers to a position close to the upstream 4, namely, the high gate 1 is positioned at the front end of the whole gate system and is directly contacted with the water at the upstream 4; the rear end is close to the downstream 5, so that the low gate 2 is in a non-working state during non-irrigation, and is used together with the high gate to realize the calling of different water sands during irrigation. The opening and closing device 3 is used for opening or closing the high gate 1 and the low gate 2, that is, the opening and closing device 3 can independently lift or lower the high gate 1 or the low gate 2, and finally open and close the gates; and the opening and closing device 3 can realize water and sand irrigation by introducing different water layers by adjusting the different heights lifted by the high gate 1 or the low gate 2. The height of the high gate 1 is higher than the water level of the upstream 4, and the height of the low gate 2 is lower than the water level of the upstream 4. Therefore, when the high gate 1 is opened and the low gate 2 is closed, silt in the middle and upper layers can be introduced into the irrigation canal, and soil is improved by using the silt with finer particles; will high gate 1 with when low gate 2 all opens, can introduce the irrigation canal with the silt that is located the bottom, and then utilize the coarser silt of granule to improve soil.
It can be known from the above embodiments that the irrigation diversion gate combined by the high-low gate according to the embodiments of the present invention is implemented by setting a low gate at the rear end of a commonly used high gate, and then implementing water taking and sand taking for water layers with different heights by the combined use of the high-low gate, so that not only is the whole gate system very easy to implement, and easy to control and debug, but also for the existing gate system, the existing gate system can be implemented by directly setting the low gate at the rear end of the gate, that is, the gate system for taking water in layers can be implemented on the basis of not damaging the existing gate system, and the efficiency and effect of taking water and sand can be improved. The method for improving the soil by irrigation is combined with soil and water sand monitoring results, soil testing and sand mixing are implemented, water sand is scientifically scheduled through the improved water diversion gate, and the purposes that the cohesive soil calls bottom-lower coarse sand and the sandy soil calls surface-upper fine sand to improve the soil structure, improve the soil quality, improve the bearing capacity of the land resources in the irrigation area and realize efficient and continuous utilization of the land resources in the irrigation area are achieved. Therefore, the irrigation diversion gate combined with the high-low gate can improve the existing gate, so that the whole gate system is extremely simple and convenient to manufacture, install, debug and use, and the quality of the soil in the irrigation area is greatly improved, the bearing capacity of the soil in the irrigation area is improved and the sustainable development of the irrigation area is promoted by soil testing, sand distribution and scientific water and sand dispatching.
In some alternative embodiments of the invention, the low gate 2 and/or the high gate 1 are height-adjustable gates for adjusting the height of the water taken by the cutwater by adjusting the height of the low gate 2 and/or the high gate 1. The height adjustment mode can be realized through a telescopic mechanism or through the sliding of a guide rail. For example: the low gate can be arranged at one end of the underground part, and the adjustment of different heights of the low gate is realized by lifting the low gate; or the low gate is arranged into an upper end structure and a lower end structure which are connected through telescopic parts such as telescopic cylinders. Like this, through adjusting the height of low gate or high gate to the cooperation that utilizes the height gate is used, can realize getting the water and getting sand to different water layers, improves soil improvement's accuracy and accuracy.
In a further alternative embodiment of the invention, illustrated with reference to figure 2, the low gate 2 comprises a plurality of sets of gates arranged in a low-to-high series, the sets of gates being independently controllable so that gate height adjustment is achieved by selecting the lifted gate and the retained gate. That is, by arranging the lower gate to be composed of a plurality of sets of gates of different heights, it is possible to realize adjustment of different heights of the lower gate 2 by selecting a gate that is left at a certain height and raising the remaining gates.
In another alternative embodiment of the present invention, referring to fig. 3, the low gate 2 comprises a plurality of layers of gates connected in sequence, and the connection relationship is detachable connection; the height of the gate is adjusted by selecting the layer number of the extraction gate.
Optionally, the low gate and the high gate may be close to each other or have a certain distance.
In another optional embodiment of the present invention, the distribution gate further includes a sand monitoring device, and the sand monitoring device is configured to monitor sand contents and corresponding sand sizes of different water levels or water layers, and feed back a monitoring result to the opening and closing device, so that the opening and closing device controls opening and closing states of the high gate and the low gate according to different irrigation soil requirements. The invention not only aims at improving a gate system, but also aims at improving soil by reasonably utilizing water and sand in different water layers through monitoring irrigation soil and water and sand. Namely, the invention firstly provides the design of scientifically improving the soil of the irrigation area by utilizing silt resources, and can realize more accurate soil improvement. Therefore, one of the protection points of the present application lies in: the method for scientifically irrigating and improving the soil is achieved by monitoring soil and water sand and taking water sand layer by layer.
In another aspect of the invention, a method for improving soil by irrigation by combined application of a high gate and a low gate is further provided, and by using the diversion gate in any one of the above embodiments, soil can be precisely improved by scientifically using silt. In some alternative embodiments, the method for improving soil by irrigation combined with the high-low gate comprises:
according to the characteristics of the downstream soil, acquiring the height of a water layer corresponding to the size of the sediment particles required by the downstream soil; and setting a control instruction of the starting and stopping device according to the height of the water layer acquired as required, so that the water with the required height of the water layer can be put into the downstream soil in the starting state of the high gate and the low gate. Specifically, when the irrigated plot soil is sandy soil with thicker particle size and poorer water and fertilizer retention, the water diversion gate can be used for only lifting the front high gate above the water surface, the rear low gate intercepts the coarse-particle sediment of the lower layer, and the sand with lower sand content and smaller particle size on the partial surface layer is introduced into the field along with water for irrigation, so that the sandy soil structure can be improved, and the water and fertilizer retention of the soil can be improved; on the contrary, when the irrigated land soil is the viscous soil with fine grain diameter and poor air permeability, the engineering technical device can be utilized to lift the front and back high-low gates to proper heights at the same time, and introduce the sand grains with higher sand content and larger sand grain diameter on the bottom layer into the field along with water for irrigation, so that the viscous soil can be improved, and the air permeability of the soil is increased. Therefore, by utilizing the water and sand monitoring, the soil can be improved by reasonably utilizing proper silt, and the effect of improving the soil is improved.
In some optional embodiments of the present invention, the opening and closing device controls the start of the low gate first, and then controls the start of the high gate. Like this, can prevent the influence that the low gate was opened and close to upstream water, and then improve the stability and the reliability of whole system control.
In some optional embodiments of the present invention, when the downstream soil is sandy soil with relatively coarse particles, the opening and closing device controls the low gate to close, so that the high gate is lifted, and further, the sand particles with relatively fine particles on the middle surface layer of the upstream water are introduced into the downstream soil; when the downstream soil is the clay soil with smaller particles, the opening and closing device controls the low gate and the high gate to be opened and lifted, and then the sand particles with thicker particles at the bottom layer of the upstream water are introduced into the downstream soil. The height combination of the specific opening of the irrigation water dividing gate used in the height combined application is determined by the height of a water layer where the size of sand grains required by the irrigation soil improvement is located.
In some optional embodiments of the present invention, the water diversion gate further comprises related equipment matched with the gate, for example: a lock chamber, an opening and closing machine room, a post-brake energy dissipation facility and the like. Wherein, the height of the high gate positioned at the front end is selected as the height of the common gate, or the existing gate is directly adopted as the high gate. The height of the low gate is selected according to the daily water level in the channel in front of the gate. The method is determined by combining the change range of the diversion flow, the distribution height of coarse sand, the texture structure of field soil and other factors. According to the size of the designed water diversion flow, the lock chamber can be designed to be 1 hole, 2 holes and the like. Generally, the branch canal of the irrigation area has more branch water gates. The high-low gates are respectively provided with a hoist. According to the information automation construction condition of the irrigation area, the gate can be opened and closed automatically or semi-automatically.
In some optional embodiments, the diversion gate can only lift the front high gate to the required opening degree according to the requirement of taking water and sand in the irrigation area, and the rear low gate plays a role in intercepting bottom coarse sand from entering the diversion canal and the field; the diversion gate can also lift the required opening height by the high-low gate, or take the bottom layer water flow containing coarse sand, or take the low-middle layer water flow, or lift the water flow above the water surface to take the full-section water flow, and the water taking and sand taking requirements of the irrigation area are met. For example: when irrigating the relatively poor sandy soil of water conservation fertilizer conservation that the plot soil is thicker for the particle diameter, can utilize this utility model engineering technology device, only mention preceding high gate on the surface of water, with the coarse grain silt of the following low gate interception lower floor, with the less viscidity sand grain of particle diameter on inclined to one side top layer introducing the field irrigation along with water, can improve the structure of sandy soil, increase the water conservation fertilizer conservation nature of soil. When the irrigated plot soil is the clay soil with fine particle size and poor air permeability, the engineering technical device can be utilized to lift the front and back high-low gates to proper height simultaneously, and the sand particles with large particle size and containing sand on the bottom layer are introduced into the field along with water for irrigation, so that the clay soil can be improved, and the air permeability of the soil is increased. And can be according to the water intaking and get husky needs, arbitrary height is mentioned simultaneously to the height gate, realizes the water intaking of different demands and gets husky combination. Flexible and convenient, stable structure and remarkable benefit.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
In addition, well known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures for simplicity of illustration and discussion, and so as not to obscure the invention. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the present invention is to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the embodiments discussed.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. A method for improving soil by irrigation with combined application of high and low gates is realized by an irrigation diversion gate with combined application of high and low gates, and the irrigation diversion gate comprises the following steps: the device comprises a high gate positioned at the front end, a low gate positioned at the rear end and an opening and closing device for controlling the high gate and the low gate; wherein, the front end refers to a position close to the upstream, and the rear end refers to a position close to the downstream; the opening and closing equipment is used for opening or closing the high gate and the low gate; the height of the high gate is higher than the upstream water level height, and the height of the low gate is lower than the upstream water level height;
the method comprises the following steps:
according to the characteristics of the downstream soil, acquiring the height of a water layer corresponding to the size of the sediment particles required by the downstream soil;
setting a control instruction of the starting and stopping device according to the required water layer height, so that the water sand with the required water layer height can be introduced into the downstream soil in the state after the high gate and the low gate are started;
when the downstream soil is sandy soil with a relatively large particle size, the opening and closing device controls the low gate to be closed, so that the high gate is lifted, and sand particles with a relatively small particle size on the middle surface layer of the upstream water are introduced into the downstream soil; when the downstream soil is the clay soil with the smaller particle size, the opening and closing device controls the low gate and the high gate to be opened and lifted, and then sand grains with the larger particle size at the bottom layer of the upstream water are introduced into the downstream soil.
2. The method for improving soil by irrigation with combined use of high and low gates as claimed in claim 1, wherein the opening and closing device controls the activation of the low gate first and then controls the activation of the high gate.
3. The method for improving soil by irrigation with combined use of a low gate and a high gate as claimed in claim 1, wherein the low gate and/or the high gate is a height-adjustable gate for adjusting the height of water taken from the cutwater by adjusting the height of the low gate and/or the high gate.
4. The method for improving soil by irrigation for combined use of high and low gates as claimed in claim 3, wherein the low gates comprise a plurality of sets of gates arranged in a low-to-high series, the plurality of sets of gates being independently controllable such that gate height adjustment is achieved by selecting a lifted gate and a retained gate.
5. The method for improving soil by irrigation with combined use of high and low gates as claimed in claim 3, wherein the low gates comprise a plurality of layers of gates connected in sequence, and the connection relationship is detachable connection; the height of the gate is adjusted by selecting the layer number of the extraction gate.
6. The method for improving soil through irrigation combined with a high-low gate as claimed in claim 1, wherein the irrigation diversion gate further comprises a sand monitoring device for monitoring sand content and corresponding sand size of different water levels or water layers, and feeding back the monitoring result to the opening and closing device, so that the opening and closing device controls the opening and closing state of the high gate and the low gate according to different irrigation requirements.
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| CN201710030559.2A CN106759179B (en) | 2017-01-16 | 2017-01-16 | Irrigation water diversion gate combined with high-low gate and method for improving soil by irrigation |
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| CN201710030559.2A CN106759179B (en) | 2017-01-16 | 2017-01-16 | Irrigation water diversion gate combined with high-low gate and method for improving soil by irrigation |
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| CN106759179B true CN106759179B (en) | 2022-05-31 |
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| CN107503337B (en) * | 2017-08-07 | 2020-06-02 | 崔淑芳 | Soil testing and sand blending method for pre-controlling soil desertification or accurately improving soil in multi-sand irrigation area |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5078863A (en) * | 1988-05-05 | 1992-01-07 | Duilio Durigon | Pool skimmer |
| CN2311518Y (en) * | 1997-07-24 | 1999-03-24 | 葛广运 | Diversion gate |
| US6343433B1 (en) * | 1999-09-08 | 2002-02-05 | Lee Granberg | Method and apparatus for separating target and non-target species harvested from waterbodies |
| CN2816129Y (en) * | 2005-06-16 | 2006-09-13 | 刘宪武 | Sluice-board device for surface water catchment |
| CN202227326U (en) * | 2011-09-09 | 2012-05-23 | 黄河水利委员会黄河水利科学研究院 | Layered canal head gate |
| CN103352448A (en) * | 2013-06-14 | 2013-10-16 | 山东省水利勘测设计院 | Layered water intake gate |
| CN104631396B (en) * | 2015-03-03 | 2016-08-17 | 山东农业大学 | Laminated water gate |
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