70 results about "Canal water" patented technology

The invention discloses a microorganism concrete brick and a preparation method thereof. The microorganism concrete brick is formed by mixing cement, gravel, sawdust (or straw scraps, scraps of paper, and the like), mixing mixed microorganism with water according to a certain proportion, forming by a mold and then naturally hardening, wherein the mixed microorganism comprises six floras including bacillus, nitrobacteria, photosynthetic bacteria, saccharomycetes, lactobacillus and actinomycetes. The microorganism concrete brick has excellent water quality purifying function, can continuously play roles for a long time, and is widely applicable to purify various water qualities such as rivers, lakes, canal water, swimming pools, fishponds and the like.

The invention discloses a flow measuring and transmitting device of dam infiltration flows of a reservoir, comprising a field measuring unit and an indoor receiving unit, wherein the field measuring unit comprises a flow measuring device and a transmission circuit, the flow measuring device comprises a triangular flow measuring weir, a triangular residue separating drum, a floater, a guide rod, a guide ring and a differential transformer; the triangular flow measuring weir is embedded into an infiltration flow open canal water-retaining weir to be connected with the floater; the floater is fixedly connected with the guide rod; the guide rod is connected with a movable armature iron; the differential transformer comprises a secondary winding, a primary coil winding and the movable armature iron and is coupled with a device with coefficient changed along with the up-and-down movement of the armature iron, wherein the movable armature iron is positioned between the secondary winding and the primary coil winding and moves up and down along with the lifting of the floater; the floater has very reliable work when used as a device for detecting a liquid level without being influenced by the canal bottom sullage of an infiltration flow weir, weather and temperature; and the differential transformer is sensitive and durable, has high precision and is widely used for measuring physical quantities such as distances, displacements, and the like in the industrial production process.

The invention relates to a method and device for automatically measuring a water level, belonging to the field of measurement in water conservancy. The technical scheme of the invention is that: an intelligent water level meter consists of a pressure cover (3), a pressure guide tube (5) and an intelligent water level meter main body (6), wherein the intelligent water level main body (6) comprisesa pressure sensor (7), a water level terminal (8), a lithium battery (9) and a communication module (10) which are arranged in a sealed shell (12); a wireless manual operator consists of a communication module and an operation module which are matched with each other; and the communication module in the intelligent water level meter is connected with the communication module in the wireless manual operator in a wireless communication manner. The device belongs to self-powered intelligent 'fool-type' equipment, and works automatically outdoor under unattended condition; the wireless manual operator is used for directly inputting acquired data to an upper management computer in a wireless communication manner without wired cable network operation; and when agricultural irrigation is finished, an automatic water level measuring device can be conveniently taken away from a canal water gage glass to be prevented from being stolen.

The invention discloses a floating type river and canal water flow velocity measuring instrument. A flow velocity sensor 1 is electrically connected with the signal input end of a flow velocity measuring and computing system 4 through a signal line 9 and is mounted at the lower end of a supporting rod 2, the upper end of the supporting rod 2 is fixed to a frame 3, float bowls 8 and a downstream plate 11 are mounted at the bottom of the frame 3, the bottom of the frame 3 is connected with the upper end of a positioning rope 10, and the lower end of the positioning rope 10 is connected with a positioning anchor 13. The floating type river and canal water flow velocity measuring instrument has the advantages that time-consuming and labor-consuming complex construction-type mounting in the prior art is changed into throwing-type mounting, and the instrument is not limited to be mounted on the shore and can be thrown in the center on a river conveniently, so that water flow velocity measuring precision is improved, testing location change is flexible and convenient and mounting use cost is reduced; the floating type river and canal water flow velocity measuring instrument is applicable to being connected into a water level monitoring system based on Internet of Things.

The invention discloses a series water conveyance canal water level prediction and control method based on a fuzzy neural network, and relates to the technical field of water level prediction. The method comprises: conducting the relation between the gate opening degree and the open channel control water level through a fuzzy neural network, and constructing a pre-gate water level controller coupled with a predictive control algorithm; solving the optimal control rate of the water level controller in front of the gate by adopting a gradient optimization algorithm based on the control target ofthe water level controller in front of the gate; based on the solved optimal control rate, collecting and multiplying actually measured water level change information by the optimal control rate to generate a control strategy, and therefore the purposes of water level prediction and control are achieved.

The invention discloses a distributed joint monitoring system for farmland soil humidity and irrigation water quantity, belonging to the technical field of farmland energy saving and water conservation. The system is characterized by a Zigbee protocol-based distributed computer monitoring system of a wireless humidity sensor and a wireless flowmeter based on a magnetic control valve; in a computer, a soil humidity sensor collects the soil humidity at each node of a center spoke type spray pipe net or drip net, the utilization factor of the canal water of the pipe net is monitored through two wireless flowmeters at a main pipe exit and a canal water entrance of the pipe net, a dual-power supply circuit composed of a solar panel and a standby battery supplies power to an electromagnetic coil of a control valve, and the computer calculates the maximum water content of the soil of unit volume by use of the soil humidity; and after multiplying the difference between the maximum water holding capacity of the field and the irrigation water quantity by an adjustment factor reflecting individual control, the increase and decrease control is performed until the maximum water holding capacity of the soil is equal to the total irrigation water quantity after the increase and decrease control. The system disclosed by the invention has the advantages of low energy consumption, low water consumption and synchronous monitoring of canal leakage.

The invention belongs to the field of water conservancy facilities, and particularly relates to a device for cleaning away canal water distributing opening floating objects. The device can automatically run through currents. The device comprises a garbage collecting tank, an intercepting net, a scraper blade, a scraper blade transmission device, a bubbling device and a power device. The garbage collecting tank floats on the water surface, and the scraper blade transmission device is used for enabling the scraper blade to move along the intercepting net upwards. The bubbling device is arrangedin water and located in front of and below the intercepting net. The power device is used for supplying power to the scraper blade transmission device and the bubbling device.

The embodiment of the invention relates to a brackish water irrigation method for lyciumbarbarumin salinized irrigation areas, and relates to an irrigation technique for lyciumbarbarumin salinized irrigation areas. On the premise that the content of salt of soil is reduced, the requirements of lyciumbarbarumon water in the growth period can be met, and at the same time the medicinal quality of lyciumbarbarum is effectively improved. The brackish water irrigation method comprises the following steps: irrigating by using yellow river canal water of which the mineralization degree is 0.4-0.8g/l for first irrigation and second irrigation, irrigating by using brackish water of which the mineralization degree is 3-4g/l for third irrigation and fourth irrigation, and irrigating by using yellow river canal water of which the mineralization degree is 0.4-0.8g/l for fifth irrigation.

The invention relates to a dual-cable netted ice guard for a water conveyance canal, which comprises anchored piles, wire cables and segments, wherein the anchored piles are fixed on both sides of the canal; the wire cables are fixed on the anchored piles through buckles; and each segment consists of an ice guard net and drift wood, the ice guard net in a netted structure is formed by welding steel bars and is perpendicularly arranged in canal water, the ice guard net is fixed to the drift wood, lantern rings are welded on the ice guard net, the segments are sheathed on two wire cables through the lantern rings, and the wire cable on the outer side or inner side of each lantern ring is provided with a positioning buckle, thereby ensuring that the segments are positioned on the wire cables. The invention has the advantages of simple structure, convenient processing, low cost and good ice guard effect. The water conveyance canal adopts the dual-cable netted ice guard, thereby effectively retarding ice floccule and ice slush, reducing the downstream conveying of ice slush, realizing the goal of forming an icecap in place and melting the icecap in situ, and reducing the possibility of forming ice jams, ice dams and other extreme ice damage downstream. Thus, the invention is very important for realizing safe and stable water conveyance in long-distance water conveyance canals in an ice period.

The invention belongs to the technical field of intelligent agriculture and particularly relates to a particle swarm algorithm-based canal system optimization water distribution method. The method comprises the steps of 1, establishing a target function according to upstream canal capacity, a canal water utilization coefficient, a downstream canal quantity and downstream canal capacity, and determining a rotational irrigation group number range, and a total particle number of a particle swarm and a maximum iterative frequency required for running a particle swarm algorithm; 2, generating the particle swarm in a feasible region by utilizing the particle swarm algorithm; 3, judging whether particles in the generated particle swarm meet constraint conditions or not; 4, recording the positions of all the particles meeting the constraint conditions; 5, calculating fitness values of the particles; and 6, judging whether the particle swarm algorithm reaches the maximum iterative frequency or not, and if the maximum iterative frequency is reached, outputting an optimization result, or otherwise, updating speed and position information of all the particles and performing the steps 5 and 6 again. The method is suitable for different types, different regions and different irrigation areas, and is high in practicality and universality.

The invention provides a group gate allocating expert decision control system. The group brake allocating expert decision control system comprises a site gate controller, a gate control supervisory control and data acquisition (SCADA) server, a gate control work station, a water regimen and work condition remote measuring station and a remote measuring communication server, wherein the site gate controller and the gate control work station are connected with the gate control SCADA server through a broadband fiber water conservancy private network; the water regimen and work condition remote measuring station is connected with the remote measuring communication server through an ultrashort wave network; and the remote measuring communication server is connected with the gate control SCADA server. In the gate control expert system, an artificial intelligence control technology for main canal group gate water supply scheduling operation is used, so that work modes of less people management and unmanned operation for the main canal group gate operation are realized, the real-time property and the reliability of main canal water supply during field irrigation are ensured, labor power and cost are reduced and economic benefits are improved.

The invention belongs to the technical field of culture and particularly relates to an ecological culture system of river crabs. The ecological culture system comprises an isolation assembly, a drivemechanism for conveying is arranged on one side of the isolation assembly and is connected with a cleaning assembly for cleaning, two switching assemblies used for switching the cleaning assembly arearranged on two sides of the cleaning assembly, the switching assemblies are distributed at two ends of the isolation assembly, a blocking assembly connected with the isolation assembly is arranged atthe bottom of the cleaning assembly, and the ecological culture system further comprises an application method of the ecological culture system of the river crabs. By the arrangement, the river crabsare cultured, irrigation canal water grass is removed, the irrigation canal safety is protected, salvage of floating matter is facilitated, feeding is facilitated during culture, the culture efficiency is improved, aquatic plants in irrigation canal riverway are removed, and the riverway is dredged.

The invention provides an intelligent detection device for scouring and silting changes of a cross section of a silt-rich channel. The system comprises a sedimentation layer, a canal water layer and river banks on two sides of a river, a sediment layer is arranged at the bottom of the river channel between the river banks, a canal water layer is arranged above the sedimentation layer, a solar power supply system is arranged on the river bank on one side and comprises a fixing rod arranged on the river bank on one side, a solar cell panel is arranged on the side surface of the top end of the fixing rod, and a solar storage battery is arranged in the fixing rod. By arranging three systems (a solar power supply system, a sailing system and a silting monitoring operation system) and adopting modern measurement equipment and an automatic control technology to be matched with an existing flow meter, the channel silting measurement problem is solved, intelligent and accurate metering of silting-containing river channel flow is achieved, and the device is simple in structure and convenient to operate.

The invention discloses a flood prevention and control method and device based on river and lake water system communication, a medium and equipment. The method comprises the following steps: generating DEM data for an area needing flood prevention and control, and obtaining the related data of reservoir-river-lake-wetland water system nodes; based on the DEM data of the flood prevention and control area, extracting a canal water system after hydrological analysis; constructing an evaluation index system of reservoir-river-lake-wetland water system key nodes; constructing a reservoir-river-lakewetland water system communication optimization network to obtain the reservoir-river-lake-wetland water system communication optimization network; and according to the reservoir-river-lake-wetland water system communication optimization network, selecting a reservoir flood discharge path from the optimization network for a reservoir to be subjected to flood discharge. According to the method, the reservoir flood discharge path is determined in the optimization network by constructing the reservoir-river-lake wetland water system communication optimization network, so that reservoir flood canbe effectively handled, the reservoir flood can be timely, safely and effectively discharged to lakes and wetlands, and scientific and practical values are provided for flood prevention and disasterreduction.

The invention discloses a method for reducing farmland drainage canal nitrogen and phosphorus loss through charcoal.By means of the high adsorbability of charcoal for nitrogen and phosphorus, aquatic plants are planted in a soil matrix containing charcoal and placed in a farmland drainage canal in a frame mode, and therefore the distribution layout of aquatic plants in the ecological canal is controlled; by means of the absorption and adsorption effect of the aquatic plants and the charcoal in the soil matrix on nitrogen and phosphorus on canal water, the nitrogen and phosphorus concentration in the canal water is lowered, the purpose of reducing the nitrogen and phosphorus loss is achieved, the aquatic plants in the canal can be prevented from growing too densely, and therefore the smooth waterflow in the canal is ensured.The method is low in investment cost, and easy to operate and implement.

The invention relates to a cartographic method of a canal linear river system element considering density variation. The cartographic method of the canal linear river system element considering the density variation comprises the steps that firstly high-grade canals are selected according to a mainstream and branch relationship of a linear river system; then a canal with a large element length isselected in the candidate canals; according to the density variation of the density of the selected canal and the density of an original canal, a density variation sum of a canal element not being selected is counted, and a canal water body with the largest density variation sum is selected and the density of the selected canal is updated; the canal water body with the largest density variation isselected repeatedly until the number of selection reaches the number of canals required by cartographic generalization; and finally, simplified line processing is carried out on the selected canal element, canal details are abandoned, and the basic shape of the canal is reserved. According to the cartographic method of the canal linear river system element considering the density variation, canalwater body selection during the cartographic generalization can be automatically realized according to the density variation of the selected canal and the original canal, a density comparison relationship between different density areas of a cartographic area is kept, and complex manual intervention is not required, so that canal element cartographic generalization is more flexible and convenient.

An open canal water level flow rate measurer being able to be radio ¿C operated is composed of transducer including shell and panel fixed in front surface of shell; electric box including charger external electrode plate set at top end of said box and cell case as well as circuit board having liquid crystal display, monolithic computer chip, storage circuit, real ¿C time clock circuit, printed antenna, charger control circuit, radio receiving ¿C transmitting chip, reset button, operation indicating lamp and fault indicating lamp.

The invention discloses an energy-utilizing water suction system, which is provided with a closed water storage tank, a water discharge pipe is arranged on the lower part of the water storage tank, the upper part of the water storage tank is connected with a water suction pipe, and a control valve is arranged on the water discharge pipe. Since the energy-utilizing water suction system adopts the closed water storage tank, when water is discharged by the water discharge pipe on the bottom of the water storage tank, the pressure difference energy between negative pressure generated in the upper part and the surface pressure is utilized to automatically suck well water or river water into the water storage tank, and thereby energy consumption is saved; the energy-utilizing water suction system can be used for sucking domestic water when tap water supply facilities do not exist, sucking motor-pumped well water or canal water to irrigate farmlands and lifting water from a diversion canal for irrigation. The energy-utilizing water suction system has a simple structure, is convenient to operate, not only can be fixed, but also can be mounted on a motor vehicle for mobile use, and can be used in any places without being limited by external conditions; and the fabrication cost is low.

Provided is a double ring canal. In self-discharge and self-feed waters and tide waters, taking the self-discharge waters as the example, input canal water 1, right ring purified water 6 and left ring purified water 3 are diluted into distributary canal water 4 and then diluted into confluence canal water 7, the confluence canal water 7, input sewage 8 and input air 9 are input into a confluence water plant 10 with waters subjected to biochemical deep treatment, recovery exhaust 11, recovery discharged sludge 12 and confluence purified water 13 are output for waters denitrification, decarbonization and dephosphorization, and waters pollution control resources of the right ring purified water and left ring purified water of distributary purified water 14 and purified canal water 15 discharged to downstream waters from upstream waters are provided.

The invention relates to a pretreatment system and a pretreatment method based on dissolved oxygen control in a sewage treatment plant, belonging to the technical field of sewage treatment. The pretreatment system mainly comprises a sewage inlet canal, a water inlet pump room, a lifting pump water outlet canal, an aeration sand depositing pond water inlet canal, an aeration sand depositing pond and an aeration sand depositing canal water outlet canal. The pretreatment system is characterized in that a water collection pond is arranged below the water inlet pump room; the water collection pond is connected with the sewage inlet canal; a submerged lifting pump is arranged at the bottom of the water collection pond; the submerged lifting pump is connected with a lifting pump water outlet pipeline; the lifting pump water outlet pipeline is connected with the lifting pump water outlet canal; the lifting pump water outlet canal is connected with aeration sand depositing pond water inlet canal; the aeration sand depositing pond water inlet canal is connected with the aeration sand depositing pond; the aeration sand depositing pond is connected with the aeration sand depositing canal water outlet canal. The pretreatment system is mainly used for solving the problem of water dropping oxidation supply of the pretreatment unit of the sewage treatment plant by using a conventional engineering design method, and has the advantages that the carbon source retention property is good, the reinforced nitrogen and phosphorus removal potential is large, the production operation cost is low, the effects of energy conservation and consumption reduction are remarkable, the engineering design method is simple, and the like.

The invention discloses a safe and high-yield irrigation method for winter wheat in a well-canal combined irrigation area. The method comprises the steps of respectively adopting underground water forirrigation in a green-returning period of the winter wheat in a quota irrigation mode, adopting surface water for irrigation in the jointing period of the winter wheat and adopting surface water forirrigation in the grouting period of the winter wheat. The surface water consumption is not less than 67% by volume of the total irrigation water. The method provided by the invention is suitable forwell and canal combined irrigation in areas with insufficient surface water, safe and efficient irrigation in areas with insufficient surface water can be realized through the method, The high yield of the winter wheat and the good quality of the obtained winter wheat can be guaranteed, and meanwhile, through the determination of well water, canal water irrigation time and irrigation quota, soil salinization can be effectively prevented. The method is worthy of extensive application.

The invention discloses a casing pressure transit time method material level instrument which structurally comprises a measuring rod, a handle and a display screen, the display screen is fixedly embedded in the front end of the handle, the measuring rod is installed at the rear end of the handle, upward thrust is generated on a stress ring through canal water, and the stress ring can rotate clockwise along a fixing block under cooperation of a combination rod. The swing plate can be matched with the grabbing block to grab duckweed on water in a canal entering the measuring rod and then drive the duckweed upwards, so that the measuring rod can measure accurate water level height data, the duckweed and water between the floating ball and the discharging mechanism can be brought into the frame through the opening in the inner side of the frame, and through water and thrust generated by duckweed to the stress roller, the water can extrude the outer contact plate, so that the outer contactplate can contract inwards, and the water can drive the duckweed to be extruded downwards between the outer contact plate and the inner wall of the plate.