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59 results about "Facilities design" patented technology

Method for evaluating swimming ability of fishes and application

The invention discloses a method for evaluating the swimming ability of fishes and application of the method in the fish passage facility design. The method comprises the steps that (1) fishes are selected as a target; (2) a test water channel is selected; (3) the sensing flow velocities of the fishes are tested, wherein the total length index, the body length index and the weight index of each fish are recorded, and temporary rearing continues; (4) the critical swimming speeds of the fishes are tested; (5) the onrush swimming speeds of the fishes are tested, wherein the total length index, the body length index and the weight index of each fish are recorded, and the onrush swimming speeds of the fishes are calculated; (6) repeated testing is carried out; (7) statistics is carried out on swimming speed test results, wherein the median of the sensing flow velocities, obtained through repeated testing, of the target fishes, the median of the critical swimming speeds, obtained through repeated testing, of the target fishes, and the median of the onrush swimming speeds, obtained through repeated testing, of the target fishes are calculated; (8) the range of the continuing swimming speeds, the range of durable swimming speeds and the range of the outburst swimming speeds are obtained in a short time, comprehensive evaluation is carried out on the swimming speeds of the fishes, and the maximum flow velocity of a main body structure, the fish luring flow velocity of an inlet, and the range of the flow velocities of an outlet in the fish passage facility design are determined.
Owner:WATER ENG ECOLOGICAL INST CHINESE ACAD OF SCI

Optimized hydromodification management with active stormwater controls

A system, methodology, and programming logic for active stormwater controls to optimize sizing and design of Hydromodification Management (HM) structural Best Management Practices (BMPs) to achieve optimal flow duration control. Control logic enables the controlled release of stormwater from a BMP in a manner most akin to pre-development flow duration curves. Inputs to this logic include: flow duration curves based on continuous hydrologic simulation for pre- and post-development conditions; real-time measurement of water level within the BMP; and real-time measurement of discharge entering the BMP. This control logic can interact with control logic for other stormwater management objectives, such as harvest and reuse, infiltration, and combined sewer overflow prevention, and respective inputs, such as real-time weather forecast data, precipitation gage data, downstream flow gauge data, and water quality data, to meet those design objectives as well. New HM BMPs can be optimized to be smaller and, thus, more feasible to implement. Existing stormwater facilities designed for flood control or other management objectives can be retrofitted to provide hydromodification control as well. When utilized with real-time flow and water level monitoring equipment and data, the flow release logic can be adaptively adjusted without physical retrofit of the BMP's outlet.
Owner:OPTIRTC

Retro-reflection based arterial highway non-control intersection night-driving safety facility design method

InactiveCN103225245ARealize the passive deceleration effectEnsure rhythmTraffic signalsRoad signsDriver/operatorNight driving
The invention relates to a retro-reflection based arterial highway non-control intersection night-driving safety facility design method. Based on drivers' vibration perception and visual perception principle and by comprehensive application of involuntary speed reduction and voluntary speed reduction methods, in an intersection functional zone, seven road-surface lateral oscillation deceleration markings of 80-100m length at the vibrational frequency of 1-2 HZ are arranged such that a driver has a vibration discomfortableness so as to passively decelerate; frequency-conversion comb-teeth-shaped visual illusion deceleration markings of about 50m length at the median frequency of 4-8 HZ are arranged at the edge of a lane such that a speed that a driver senses is faster than an actual speed so as to actively decelerate; in an intersection physical zone, five intersection contour warning marks which are arranged 12-20m away from each other are disposed along the edge of a turning curve; and a retro-reflection material is used to design the deceleration markings and the warning marks such that night legibility and warning effect at intersections are raised. The design provided by the invention is suitable for arterial highway non-control intersections with the night travel-speed of 40-80km/h.
Owner:WUHAN UNIV OF TECH

Multi-medium bioretention facility applicable to south red soil region

The invention provides a multi-medium bioretention facility applicable to a south red soil region. By aiming at the defects in the prior art and the regional characteristics of the south red soil region, the invention provides a runoff rainwater bioretention facility with the advantages that red soil, zeolite and compost are used as composite media; the structure is simple; the management is convenient; the nitrogen and phosphorus removal effects are good; the seepage coefficient is high. The multi-medium bioretention facility comprises a water inlet pipe, a preposition pool and a bioretention facility main body, wherein the bioretention facility main body sequentially comprises a water storage region, a bark covering layer, a composite medium layer, a filtering sand layer, a gravel water discharging layer and a perforated PVC (polyvinyl chloride) water discharge pipe from top to bottom; waterlogging-resistant and drought-enduring plants such as fleur-de-lis or calami can be planted in the composite medium layer. The regional advantages of the red soil region and the optimization combination of multiple media are used; the efficient purification on contaminants such as nitrogen and phosphorus in the runoff rainwater can be realized; the facility design is simple and flexible; the applicability is high.
Owner:NANCHANG UNIV

Method for determining criteria and quantity value for adding abnormal flood discharge facilities to special-grade dam

InactiveCN107169246AOvercome no norms to followTo overcome the lack of fuzzy existing evidenceGeometric CADBarrages/weirsWater dischargeFacilities design
The invention relates to a method for determining criteria and a quantity value for adding abnormal flood discharge facilities to a special-grade dam. The method comprises the steps of setting an upstream flood hygrograph of the special-grade dam; setting a water discharge capacity reduction amplitude of the water dam; setting a starting regulation level; calculating a water level; forming the criteria for adding the abnormal flood discharge facilities; and forming the specific discharge quantity value for adding the abnormal flood discharge facilities. According to the method, whether the design of the water dam without abnormal flood discharge measures can ensure flood discharge and dam safety under an extreme extra standard flood condition or not can be rechecked; and whether the original design considers flood discharge and dam safety under a condition of flood check and a condition of failure of a water discharge gate or not is further rechecked. The given criteria and quantity value for adding the abnormal flood discharge facilities to the special-grade dam can be directly used for aided design; a design basis is provided for lowering a flood discharge risk of cascade control; and the deficiencies of no standard reference and fuzzy existing basis of conventional abnormal flood discharge facility design are overcome.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Optimized hydromodification management with active stormwater controls

A system, methodology, and programming logic for active stormwater controls to optimize sizing and design of Hydromodification Management (HM) structural Best Management Practices (BMPs) to achieve optimal flow duration control. Control logic enables the controlled release of stormwater from a BMP in a manner most akin to pre-development flow duration curves. Inputs to this logic include: flow duration curves based on continuous hydrologic simulation for pre- and post-development conditions; real-time measurement of water level within the BMP; and real-time measurement of discharge entering the BMP. This control logic can interact with control logic for other stormwater management objectives, such as harvest and reuse, infiltration, and combined sewer overflow prevention, and respective inputs, such as real-time weather forecast data, precipitation gage data, downstream flow gauge data, and water quality data, to meet those design objectives as well. New HM BMPs can be optimized to be smaller and, thus, more feasible to implement. Existing stormwater facilities designed for flood control or other management objectives can be retrofitted to provide hydromodification control as well. When utilized with real-time flow and water level monitoring equipment and data, the flow release logic can be adaptively adjusted without physical retrofit of the BMP's outlet.
Owner:OPTIRTC

A kind of facility and method for parent-breeding mussel breeding and grouping for constructing large-scale family of Triangle sail clam

The invention relates to a mussel breeding and grouping facility and method for constructing a large-scale family line of the triangular clam. The facility includes two water supply pools and matching pools equal in number to the builder's coefficient. The water supply pool is connected to each matching pool through pipelines, and can inject water into the matching pool. Each matching group pool is an independent pool body and is provided with an overflow port. The matching group pool is provided with a clam hanging bracket, and the parent mussels are placed in the net clips of the clam hanging bracket. A method for parenting mussel breeding and grouping for constructing a large-scale family of S. triangularis, characterized in that it comprises the following steps: (1) selecting a water supply pool; (2) building a grouping pool; (3) laying pipelines; (4) parenting Identification of male and female mussels; (5) Hanging mussels; (6) Daily management and inspection. The whole set of parent-breeding mussel breeding and grouping facilities for building a large-scale family of S. sinensis is precisely designed to meet the strict requirements of family breeding of aquatic animals. Compared with traditional facilities, it has the advantages of low cost, small construction difficulty, strong controllability and high accuracy. In the process of family building, it is easier to check the fertilization status of parent mussels and daily management, which is more efficient and greatly saves manpower and material resources.
Owner:SHANGHAI OCEAN UNIV

Method for comprehensively treating saline alkali soil

PendingCN106576482AScientific and reasonable design of engineering facilitiesEasy to operateSoil lifting machinesBioloigcal waste fertilisersAlkali soilMedicine
The invention relates to a method for comprehensively treating saline alkali soil. The method is characterized in that a method in which physical improvement and biological improvement are combined is used for treatment. According to the physical improvement, project land parcels for treating the saline alkali soil are constructed, a road is constructed in the middle, a ditch is constructed on one side of the road and provided with multiple branches for irrigation of all the land parcels, a salt and alkali discharging branch canal is arranged beside the land parcel on the outermost edge, and the branch canal is converged to a main salt and alkali discharging canal. The biological improvement includes fertilizer preparing, mellow soil insect luring, soil loosening insect killing, planting of any one of saline-alkaline resistant zizania aquatica, corn, astragalus membranaceus, liquorice and chrysanthemum in the next year and crop rotation of crop of the previous year in the third year. Project facility design is scientific and reasonable, operability is high, mechanical operation is convenient, bio-organic fertilizer is applied, soil loosening is convenient through insect luring, saline-alkaline resistant alfalfa planted in the first year returns to the field, the soil is improved, crop rotation is conducted in the second year and the third year, the content of soil salinization of a plough layer is reduced, and meanwhile great economic benefits can be generated from the crop.
Owner:时成
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