28 results about "Irrigation channel" patented technology

The invention discloses an irrigation channel maintenance cofferdam system and a maintenance method, the system comprises a vehicle body with an arm, a rotating device, a cofferdam device and a sealing structure, a cantilever is hinged to the tail end of a working arm of the vehicle body with the arm, the rotating device is mounted at the lower end of the cantilever, and the cofferdam device is mounted at the lower end of the rotating device; the cofferdam device comprises a first baffle and second baffles, the two second baffles are installed at the left end and the right end of the first baffle correspondingly, an included angle is formed between each second baffle and the first baffle, and sealing structures are installed on the lower sides of the first baffle and the second baffles and the sides, away from the first baffle, of the second baffles correspondingly. A connecting base is installed on the upper side of the first baffle and connected with the rotating device. When the cofferdam device is installed, the cofferdam device is fixed through the working arm of the truck body with the arm, and the cofferdam device is more convenient to install.

The utility model provides a high-standard farmland river concrete water-saving irrigation channel which comprises a U-shaped concrete channel, connecting lugs are arranged on the two sides of the top end of the concrete channel, a combined cover plate is arranged on the concrete channel, connecting rings are fixedly installed on the two sides of the combined cover plate, and the connecting lugs are connected with the connecting rings. A mounting bolt is movably inserted in the connecting ring, a connecting hole is vertically formed in the connecting lug, an internal thread sleeve is fixedly embedded in the connecting hole, and the mounting bolt is in threaded connection with the internal thread sleeve. The combined cover plate is arranged on the concrete channel, the two rectangular cover plates are combined together through matching of the inserting rods and the inserting holes, the rectangular cover plates can be fixed to the concrete channel through the connecting rings on the outer sides of the rectangular cover plates, and objects such as soil, leaves and stones are prevented from rolling into the channel to block the channel; and meanwhile, the connecting ring can be used for hoisting the rectangular cover plate to facilitate installation, maintenance and replacement.

The application discloses a method and system for calculating design flow of irrigation channel considering peak shaving effect of local water source. The method comprises the following steps: obtaining design irrigation area, comprehensive irrigation quota, design irrigation guarantee rate, irrigation water use coefficient of the irrigation channel, and basic conditions and runoff data of the local water source project; selecting a plurality of continuous time periods in a design irrigation typical year as irrigation peak time periods; calculating total irrigation water demand in the time periods; determining the local water source project participating in peak shaving and calculating total available water supply of the local water source project; calculating a peak shaving correction coefficient according to the total water demand and the total available water supply, and correcting the available water supply of the local water source in each sub-period in the peak time periods according to the peak shaving correction coefficient; and determining the design flow of the irrigation channel according to the corrected available water supply of each sub-period and the corresponding irrigation water demand. The application considers the peak shaving effect of the local water source on the backbone channel, has the advantages of wide applicability, clear guarantee rate concept, and the ability to solve the problem of double peak of joint dispatching water supply, and can provide a basis for irrigation district planning and design.

This invention provides a method for optimizing water distribution scheduling in multi-level irrigation channels based on iterative fixed delay, relating to the field of water conservancy engineering technology. The method involves calculating the flow rate of each channel in each time period based on the topology and initial water delivery delay of the multi-level irrigation channels, calculating the average flow velocity of each channel, and obtaining the target water delivery delay. Based on the initial and target water delivery delays, a relaxation update strategy is used to calculate the corrected water delivery delay. The method then determines whether the change between the corrected and initial water delivery delays satisfies the convergence condition. If not, the corrected water delivery delay is used as the initial water delivery delay to calculate the flow rate of each channel in each time period. If the convergence condition is met, the start / stop status and flow rate of each channel in each time period are calculated based on the corrected water delivery delay to obtain the optimized scheduling result. This invention solves the problem that existing irrigation water distribution schemes struggle to balance physical rationality and computational efficiency.

The utility model discloses rapid forming equipment suitable for irrigation channel construction, which relates to the technical field of irrigation channel construction and comprises a channel forming machine main body, a baffle is fixed at the top end of the channel forming machine main body, and a limiting plate is mounted on one side of the baffle, so that a connecting block fixed on the outer wall of the limiting plate is inserted into the inner wall of a connecting groove; therefore, the limiting plate is stably installed on one side of the baffle, the shielding plate is used for driving the rotating shaft to rotate on the inner wall of the baffle, meanwhile, the two sides of the shielding plate slide on the outer wall of the baffle correspondingly, it is avoided that outside sundries enter the device to cause mixing of raw materials, and therefore the device can better and rapidly form an irrigation channel; and spring dampers fixed to the bottom ends of the connecting columns are reset to drive the connecting columns to slide on the inner walls of the sliding holes, so that the shielding plate is further stably installed on the outer surface of the baffle, and the situation that sundries enter the channel forming machine body due to the fact that the shielding plate shakes on the outer wall of the baffle is avoided.

The utility model discloses an agricultural gate anti-blocking structure in the technical field of gate anti-blocking, which comprises an irrigation channel, a flow regulating gate is mounted at the top of the irrigation channel, an anti-blocking component is further arranged on one side, close to the flow regulating gate, of the irrigation channel, the anti-blocking component comprises a supporting component, and a filtering component is arranged in the supporting component. The supporting component comprises a metal frame, a screen plate mounting groove is formed in the metal frame, positioning plates are arranged at the two ends of the metal frame, and two sets of limiting grooves are further formed in the middle of one side of the metal frame. The metal plate frame with metal filter screens on two sides can be inserted in the metal frame in a limited manner, and when a flow regulating gate additionally mounted at the top of an irrigation channel is opened to drain water, the filter component can effectively filter aquatic plants in water, so that the aquatic plants are prevented from being wound with the gate, and the situation that the gate cannot be normally opened or closed is prevented; meanwhile, the abrasion and damage risks of the gate are reduced.

The utility model discloses a channel structure for farmland irrigation relates to farmland irrigation technical field, including irrigation channel and base, the top of base is equipped with the salvager, and the both sides of base's corresponding all are seted up and are limited to the groove, and the inside slide coupling of limited groove is limited to the link, and one end of limited link is fixedly connected with the limiting plate, and the inside installation of limiting plate has the drive wheel, and the other end of limited link is fixedly connected with the telescopic spring between limited groove.

To provide a flow-through power generation system with high power generation efficiency that can be installed in an irrigation channel and can be easily installed in various irrigation channels having any width, depth, flow rate, and flow velocity. [Solution] A flow-through power generation system that is fixedly installed in a waterway, comprising a rotating structure with an endless track structure formed by connecting multiple parallel rotating shafts with a pair of chains wound around them on the left and right, fins for receiving the water flow that are connected to the chains at equal intervals so that they are parallel to the rotating shafts, a housing that stores the rotating structure in the rotational direction, a generator that generates electricity using the rotational motion of the rotating structure, and a fixing member for fixing the housing to the waterway, the housing is equipped with a sliding mechanism that holds the multiple rotating shafts so that they can slide and be fixed freely up and down, and the fixing member is installed so as to clamp the housing on both the upstream and downstream sides of the waterway.

The irrigation ditch water flow control device for intelligent irrigation comprises an irrigation ditch main body, a protruding base is arranged on the surface of the upper end of the irrigation ditch main body, a rotating main shaft is arranged on the surface of the inner side of the protruding base, and an adjusting type flashboard is fixedly connected to the outer surface of the rotating main shaft. The lower surface of the adjustable gate plate is attached to the inner side surface of the lower end of the irrigation channel body, the left side face and the right side face of the outer end of the adjustable gate plate are tightly attached to the inner side surface of the irrigation channel body, and the outer side surface of the irrigation channel body is fixedly connected with a supporting seat. The supporting seats are distributed and fixed to the outer surfaces of the left end and the right end of the irrigation channel body, worms are arranged on the surfaces of the inner sides of the supporting seats, a turnable adjustable flashboard structure is adopted, the turning angle of the adjustable flashboard, the opening space angle and the water flow rate can be adjusted through an external manual-automatic integrated driving assembly, and the operation is convenient. Adjustment is flexible and convenient, and the adjustable flashboard is simple in structure and low in cost.

The utility model discloses an irrigation channel desilting device which comprises a silt suction pump, an adjusting device is arranged below the silt suction pump, and the adjusting device comprises a widened bottom plate arranged below the silt suction pump; the first bottom plate sleeves one side of the outer wall of the widened bottom plate; the second bottom plate is connected to the other side of the outer wall of the widened bottom plate in a sleeving mode and attached to the side wall of the first bottom plate; the first vertical plate is fixedly connected to the top of the first bottom plate. The utility model relates to the technical field of irrigation channel desilting, through the cooperation among the first bottom plate, the widened bottom plate and the second bottom plate, when the irrigation channel desilting device faces channels of different specifications, the positions of the first vertical plate, the second vertical plate and the widened vertical plate can be driven by adjusting the changes of the positions between the first bottom plate and the widened bottom plate as well as between the second bottom plate and the widened bottom plate, so that the irrigation channel desilting device is convenient to use. And then a proper bottom shovel plate is replaced according to the width of the bottom of the channel, and the desilting device can be adjusted according to channels of different specifications.

The application relates to an irrigation structure and method for rice fields with a water-saving function, and relates to an irrigation structure and method. In order to solve the problems of water resource waste and complicated operation in the process of current rice irrigation, the application has the advantages of simple structure, convenient operation, and the like. Before adjusting the water consumption of each field, the channel gate is closed, and the water supplement gate is automatically opened. The floating gate block rises and falls along with the rise and fall of the water level in the irrigation channel, so that the water distribution tank can dynamically supplement the water in the irrigation channel, and convenience is provided for the irrigation work. Meanwhile, the adjustment of the opening degree of the turnover valve is realized by the rotation of the rack driving gear, so that the water amount in the irrigation channel can be ensured to be sufficient, and overflow in the irrigation channel is avoided, and irrigation water is saved. The application belongs to the irrigation device and rice field irrigation technical field.

This invention discloses a water resource monitoring device and method for irrigation, belonging to the field of water resource monitoring technology. The water resource monitoring device for irrigation includes a support, and further includes: an electric telescopic rod fixed to the support, with an elastic telescopic plate at the top and a lifting component for adjusting the telescopic length of the elastic telescopic plate; a monitoring mechanism connected to the end of the elastic telescopic plate away from the electric telescopic rod, the monitoring mechanism including an equidistant adjustment component for monitoring the flow velocity of water at different depths in the channel, and several GPS sensors for monitoring the distance and water depth between the two sides of the channel; this invention can monitor the flow rate at different water depths in irrigation channels, and allows multiple monitoring positions to be vertically equidistant along the cross-section, thereby reducing the error of the monitoring values ​​and improving the accuracy of water resource monitoring results.

The invention relates to the technical field of agricultural water saving, and discloses an irrigation channel intelligent gate adjusting method and system, and the method comprises the steps: obtaining real-time water regimen data, historical monitoring data and crop canopy temperature of an irrigation channel; performing water loss trend prediction on the irrigation channel based on the crop canopy temperature and historical monitoring data to obtain a target water demand prediction value; taking a difference value between the target water demand predicted value and the real-time water regimen data as a water profit and loss value; judging a water demand risk grade of the irrigation channel based on a preset risk grade division standard and the water volume profit and loss value; performing hierarchical collaborative scheduling on the intelligent gate of the irrigation channel based on the water demand risk level to obtain a candidate instruction; performing simulation verification on the candidate instruction, and correcting the candidate instruction based on a verification result to obtain a gate control instruction; and adjusting the intelligent gate of the irrigation channel according to the gate control instruction. According to the invention, water resource waste caused by scheduling lag or improper instructions of the intelligent gate of the irrigation channel can be avoided.

The utility model provides an irrigation channel water distribution gate of preventing falling relates to irrigation channel field, including irrigation water channel, the top surface fixedly connected with support gate frame of irrigation water channel, the inside slide connection of irrigation water channel has water distribution gate, water distribution gate and support gate frame slide connection, the top surface rotationally connected with lifting screw of water distribution gate, the top surface of support gate frame is provided with the drive mechanism of drive lifting screw. This application is through setting water distribution gate, spacing slide groove, translation plate and cleaning shovel plate etc. part, when water distribution gate closes, can pass through spacing slide groove and drive translation plate to move, translation plate movement can drive cleaning shovel plate to clean under water distribution gate, avoid the hindrance of stone and other sundries stagnation to the closing effect of water distribution gate, guarantee the sealing performance between water distribution gate and irrigation water channel, improve the effect that device separates irrigation water, reduce the abrasion of stone to water distribution gate, prolong the service life of device.

The invention relates to the technical field of irrigation ditch water flow metering, in particular to an irrigation ditch flow velocity measuring device, a water flow metering method, a device, equipment and a medium, and the method comprises the following steps: firstly, obtaining a plurality of first pressure data queues and a plurality of first water level data queues; segmenting and smoothing each data queue to obtain a plurality of second pressure data queues and a plurality of second water level data queues; sequentially taking out data from the plurality of second pressure data queues and the plurality of second water level data queues, and inputting the data into a flow velocity estimation equation to obtain flow velocity estimation; and finally determining the irrigation channel water flow according to the flow velocity estimation and the reference water level. According to the method, the water flow velocity is estimated through multiple pieces of water level data and multiple pieces of pressure data, a more reliable flow velocity is selected to determine the water flow velocity according to comparison of an estimation result and a measurement result, and compared with a traditional flow calculation mode, the result is more reliable, and the accumulated error is smaller.

The utility model discloses provide a kind of water distribution structure for small irrigation channel, it is related to hydraulic engineering technical field, comprising: main channel, the one side of main channel is equipped with water distribution mouth, the top of water distribution mouth is open;Light weight gate, the light weight gate is located at water distribution mouth, and the top of water distribution mouth is equipped with operation platform;The periphery of water distribution mouth has the slot for the insertion of the light weight gate, the downstream side and the bottom of the slot are both laid with rubber seal, and the light weight gate can extrude rubber seal, to close water distribution mouth. Adopt this scheme, can be conveniently operated in small irrigation channel, and water intake can be freely controlled, and effectively prevent water seepage.

This invention provides a highly efficient run-of-river power generation system that can be installed in irrigation canals and can be easily installed in canals of any width, depth, flow rate, and flow velocity. [Solution] A water-flow power generation system fixedly installed in a waterway, comprising: a rotating structure consisting of an endless track structure formed by a pair of left and right chains winding around and connecting a plurality of parallel rotating shafts; a plurality of fins for receiving water flow connected to the chains at equal intervals so as to be parallel to the rotating shafts; a housing for housing the rotating structure in the direction of rotation; a generator that performs power generation processing using the rotational motion of the rotating structure; and fixing members for fixing the housing to the waterway, wherein the housing is equipped with a sliding mechanism that can hold the plurality of rotating shafts so as to be able to slide and fix up and down, and the fixing members are installed so as to sandwich the housing on the upstream and downstream sides of the waterway.

The utility model relates to the field of trash rack, disclose a kind of grid trash frame for irrigation channel, including outer frame, the frame further includes: a plurality of fixed in the outer frame front side and mutually parallel grid strip;Cleaning assembly, the cleaning assembly is located in the outer frame, and includes the trash rake that can reciprocate along the length direction of the grid strip;The cleaning assembly includes two closed loop chains fixedly connected on the trash rake, and the upper and lower two groups of sprocket for driving the chain circulation movement and the rotating rod for driving the sprocket rotation respectively arranged on the upper and lower ends of the outer frame. In the utility model, by rotating the rotating disc, the torque is increased through speed reducer, the rotating rod is rotated, and is matched with sprocket and chain, so that two connecting pieces move synchronously, so that the fixed plate drives the tooth on the grid strip to move, so as to realize the impurity attached on the grid strip is fished up, and the impurity can be cleaned on the shore, without diving, avoid the emergence of security risk, while saving cost.

The utility model discloses a sluice gate of an agricultural irrigation channel, the sluice gate of the agricultural irrigation channel comprises an outer frame, an embedded plate, a flashboard and a sealing layer assembly, the sealing layer assembly comprises two splint layers and a lining layer structure, the embedded plate is arranged on the outer circumference of the outer frame, and the flashboard is arranged on the inner circumference of the outer frame. The embedded plate and the canal concrete pier are embedded and inserted and sealed through cement pouring, an insertion space used for insertion of the flashboard is formed in the outer frame, the flashboard is tightly attached to the clamping plate layer around the circumferential surface of the inner concave layer, sealing arrangement of the clamping plate layer and the surface of the flashboard is achieved, and the problem of overflow in the prior art is solved. Through limiting installation between the limiting plate and the limiting groove, the clamping plate layer and the surface of the flashboard are limited to be in an abutting sealing state all the time, the problem of transient gap overflow caused by the elastic effect of the sealing layer assembly is avoided, and the sealing state of the clamping plate layer and the flashboard is kept in real time.

The invention discloses a water resource monitoring device and method for water conservancy irrigation, and belongs to the technical field of water resource monitoring. The water resource monitoring device for water conservancy irrigation comprises a support and further comprises an electric telescopic rod, the electric telescopic rod is fixedly arranged on the support, and the top of the electric telescopic rod is provided with an elastic telescopic plate and a lifting assembly used for adjusting the telescopic length of the elastic telescopic plate; the monitoring mechanism is connected with the end, away from the electric telescopic rod, of the elastic telescopic plate, and the monitoring mechanism comprises an equidistant adjusting assembly used for monitoring the flow velocity of water at different depths of the channel and a plurality of GPS sensors used for monitoring the distance between the two sides of the channel and the water depth; the flow of different water depths of the irrigation channel can be monitored, and a plurality of monitoring positions are vertically distributed at equal intervals along the cross section, so that the error of a monitoring value is reduced, and the accuracy of a water resource monitoring result is improved.

The application discloses a farmland irrigation anti-seepage channel structure and a construction method thereof, and belongs to the technical field of irrigation channels. The farmland irrigation anti-seepage channel structure comprises a channel body and a moving frame. The moving frame moves along the length direction of the channel body. The moving frame comprises a moving plate installed on the top surface of the channel body. The bottom surface of the moving plate is fixed with two fixed plates. A scraping block one is installed on the fixed plates in a vertical sliding mode. The scraping block one can be attached to the inner wall of the channel body. A scraper is installed on the moving frame in a sliding mode along the width direction of the channel body. The bottom surface of the scraper is fixed with a scraping block two. The scraping block two can be attached to the inner bottom surface of the channel body. The moving frame is provided with a driving assembly for driving the scraping block one to move back and forth in the vertical direction and a pushing assembly for driving the scraping block two to move back and forth along the width direction of the channel body. The application can scrape off the moss on the inner wall of the channel body.

This invention provides a device and method for cleaning aquatic weeds in irrigation channels. The device includes a hull and a propeller. The front of the hull is equipped with a shovel mechanism with lifting and pitching degrees of freedom and a soil-loosening mechanism that cuts weed roots by rotating. The rear of the hull is equipped with a conveying mechanism and a soil storage bin. The soil-loosening mechanism is located behind the shovel mechanism, and a suction mechanism connected to the soil storage bin is located behind the soil-loosening mechanism. A weed-cutting mechanism is located between the conveying mechanism and the soil-loosening mechanism. The weed-cutting mechanism is equipped with at least two blades, which use rotation and linear displacement to break up the aquatic weeds, which are then collected by the conveying mechanism. The hull has support mechanisms on both sides perpendicular to the direction of travel, which can be unfolded or folded to support the inner sides of the channel. This invention can remove aquatic weeds from irrigation channels to the maximum extent and achieve efficient cleaning.

The utility model discloses an irrigation channel for farmland, which relates to the technical field of farmland irrigation and comprises irrigation channel pipelines, grooves are arranged at the front ends of the irrigation channel pipelines, protrusions are arranged at the rear ends of the irrigation channel pipelines, and a connecting structure is arranged between the two irrigation channel pipelines. The connecting structure comprises a first clamping groove and a second clamping groove, a connecting block is movably clamped between the first clamping groove and the second clamping groove, and a first rectangular frame and a second rectangular frame are fixedly installed in a cavity of the first clamping groove and a cavity of the second clamping groove respectively. Grooves are formed in the front ends of the irrigation canal pipelines, protrusions are arranged at the rear ends of the irrigation canal pipelines, the two irrigation canal pipelines can be movably connected in a clamped mode, and by arranging a connecting structure, the top ends of the two irrigation canal pipelines are movably clamped into a first clamping groove and a second clamping groove correspondingly through connecting blocks; therefore, the connection between the two irrigation canal pipelines is completed, mounting and dismounting are fast, and efficiency is high.

The present invention discloses an efficient, multistage mobile desilting system for cleaning irrigation canals without stopping the water and without disturbing designed section of canal. The multistage desilting system includes sludge collector and a dewatering module assembled and further mounted on a four-wheel chassis or chain mounted type frame that moves over the canal in the direction of flow of water while progressing to clean the irrigation canal. The multistage desilting system operates without damaging the top layer of lining of concrete or brick, thereby increasing the shelf life of irrigation infrastructure.

The application provides a farmland irrigation anti-seepage channel structure and relates to the technical field of irrigation channels. The farmland irrigation anti-seepage channel structure comprises a channel body and a trash rack. The channel body is provided with a channel groove for containing water flow along the length direction of the channel body. The trash rack is arranged in the channel groove, and the bottom end of the trash rack is submerged in the water flow. The farmland irrigation anti-seepage channel structure can prevent the outlet from being blocked by floating objects.

The utility model relates to the technical field of irrigation channels, and discloses an anti-seepage channel for water conservancy agricultural irrigation, which comprises a first channel and a second channel, inserting grooves are formed in the sides, close to each other, of the first channel and the second channel, and inserting blocks are slidably connected into the inserting grooves. A filtering channel is fixedly connected to the sides, close to each other, of the inserting blocks, a groove is fixedly connected to the sides, away from each other, of the inserting blocks, a dismounting and mounting assembly is fixedly connected to the interior of the groove and used for splicing the channel, and a filtering frame is fixedly connected to the interior of the filtering channel. And the left side of the filtering frame is rotationally connected with a cover plate. According to the utility model, the filtering channel can be conveniently assembled, and impurities floating above the channel can be filtered and collected, so that the impurities are prevented from being accumulated to block the downstream channel, the sealing effect between the channels can be enhanced, and the water seepage phenomenon is avoided.

The application belongs to the technical field of irrigation channels, and particularly relates to an agricultural irrigation water channel for water conservancy projects, which comprises a channel body, a sealing strip, a sand settling basin and a sand cleaning device. The U-shaped section and the spiral-shaped flow guide groove greatly improve the carrying capacity of the sand, so that the interval distance of the sand settling basin can be lengthened, the number of the sand settling basins and the sand cleaning devices of the water channel of the same length can be reduced, and the construction cost of the water channel is saved to a certain extent. Moreover, the spiral-shaped flow guide groove guides the rotation of the water flow and separates the sand and the water at the same time. Specifically, the sand is transported forward close to the inner wall of the channel body under the action of centrifugal force. Since the width and the depth of the inner wall of the sand settling basin are greater than the width and the depth of the channel body, the sand carried in the water flowing through the sand settling basin is attached to the inner wall of the sand settling basin under the action of centrifugal force, so that the sand is left in the sand settling basin to the maximum extent, and the sand settling efficiency is improved.

The invention discloses an agricultural irrigation device with automatic dredging and water level adjusting functions, and relates to the technical field of agricultural irrigation, the agricultural irrigation device comprises an irrigation channel, the right side in the irrigation channel is fixedly connected with a drain grating, and one side of the upstream face of the drain grating is fixedly connected with a plurality of upward inclined guide grid bars; a triangular guide plate is fixedly connected to the left side of the trash holding grating in the irrigation channel, a dredging assembly is installed on the left side of the triangular guide plate in the irrigation channel, a plurality of V-shaped sediment guide grooves are formed in the bottom face in the irrigation channel and below the dredging assembly, and sludge collecting pits are formed in the front side and the rear side of the irrigation channel. The dredging device has the advantages that the limitation of traditional'manual dredging 'or'electric drive dredging' is broken through, a'water flow drive and double-screw roller 'dredging structure is innovated, the guide effect of the V-shaped sediment guide groove is matched, sediment is accurately conveyed to the sludge collecting pits in the front side and the rear side, compared with traditional manual dredging, the efficiency is improved, and the sediment deposition rate of the channel is reduced to 5% or below from 30%.