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51 results about "Ebb and flow" patented technology

Ebb and Flow (also called Ebb and flood and flood drain) are two phases of the tide or any similar movement of water. The Ebb is the outgoing phase, when the tide drains away from the shore; and the flow is the incoming phase when water rises again. The terms are also common in figurative use.

Ecological treatment circulatory system for discharge water of sea farming pond

The invention relates to an ecological treatment circulatory system for discharge water of a sea farming pond. The ecological treatment circulatory system is characterized by comprising an ecological water diversion ditch, wherein the beginning end of the ecological water diversion ditch is communicated with water in an offshore sea area; seawater is introduced through ebb and flow; a gate is also arranged, and the tail end of the gate is communicated with the beginning end of an ecological gravel bed through an overflow pipe; the tail end of the ecological gravel bed is communicated with the beginning end of a pre-positioned reservoir through an overflow pipe, and the tail end of the pre-positioned reservoir is communicated with the beginning end of a sea farming pond through an overflow pipe; the lower part of the tail end of the sea farming pond is communicated with the upper part of the beginning end of the ecological water diversion ditch through a water drainage pipe, and a water pump is arranged to provide drainage power; gravels with different particle sizes are arranged from the bottom up from the big to the small on the ecological gravel bed, and water plants are planted at the top; the pre-positioned reservoir is divided into a deep water area, an ecological floating bed area and a water source area from the beginning end to the tail end, of which the water depths are gradually reduced, sunken plants are planted in the deep water area, and an ecological floating bed is arranged in the ecological floating bed area.
Owner:FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI

Hydropower generator

The invention discloses a hydropower generator. The hydropower generator comprises a left main shaft, a right main shaft, a base and a generator body, wherein the base is composed of a round support located on the front portion and a conical support which is connected with the round support and located on the rear portion, the left main shaft and the right main shaft are installed on the left side and the right of the round support of the base in a rotary mode, a plurality of left vanes are distributed in the peripheral direction of the left main shaft, a plurality of right vanes are distributed in the peripheral direction of the right main shaft, and the front end of a tail vane is movably installed on the conical support through a rotary shaft; a left flow guiding piece and a right flow guiding piece are installed at the left side end and the right side end of the round support of the base respectively and located on the respective opposite outer sides of the left main shaft and the right main shaft respectively. Mechanical energy is generated through the waterhead generated by ebb and flow of the ocean and the water flow of retained water or non-retained water, then power is generated, and the hydropower generator is not limited by the special geographical environment, makes full use of the inexhaustible energy of tidewater of the ocean, is economical and practical and has high development value.
Owner:钟群明

River waste interception system applied to ecological restoration

The invention discloses a river waste interception system applied to ecological restoration. The river waste interception system includes two fixedly connected mounting boxes and four limit columns, the four limit columns are located on the two sides of the two mounting boxes in pairs, the two mounting boxes are internally and rotatably connected with first rotating rolls and second rotating rollscorrespondingly, the two second rotating rolls are fixedly connected with a plurality of slurry plates correspondingly, wind cups are arranged at the upper ends of shafts of the two second rotating rolls correspondingly, the first rotating rolls and the second rotating rolls on the same side are connected through a first transmission mechanism correspondingly, third rotating rolls are arranged onthe two sides of the two mounting boxes correspondingly, and arc-shaped floating plates are arranged between the two second rotating rolls and the third rotating rolls on the same side correspondingly. According to the river waste interception system, through river water flow and wind power, manual work and mechanical river fishing are replaced through natural force, convenience is achieved, human and financial resources are saved, ebb and flow of river water are adapted, thus waste on the river surface can be cleared and collected all the time, and practicability is good.
Owner:HENAN UNIV OF URBAN CONSTR

Erecting composite beam on-site section splicing girder construction technology of double guide beam bridge erecting machine

The invention discloses an erecting composite beam on-site section splicing girder construction technology of a double guide beam bridge erecting machine, and relates to the field of engineering construction. At least two temporary piers are arranged between an auxiliary pier and a transition pier, and the transition pier, the first temporary pier, the second temporary pier and the auxiliary pier are sequentially arranged; according to the bridge erecting machine, a deck of a guide bright forwards move to conduct stride flushing, a steel beam installed between the transition pier and the first temporary pier is spliced, and then a steel beam between the first temporary pier and the second temporary pier is spliced; a bridge erecting machine rail is placed on the installed steel beam; after the bridge erecting machine rail is installed, the bridge erecting machine forwards moves to enable a front support point to be placed at the pier top of the auxiliary pier; and a temporary beam conveying channel is formed in the top of a beam section of a steel beam between the transition pier and the first temporary pier, a beam section of a steel beam between the second temporary pier and the auxiliary pier is installed, the bridge erecting machine backwards moves to retreat back, and the temporary piers are dismounted. The erecting composite beam on-site section splicing girder construction technology is safe and efficient, the cost is reduced, the steel beam installation accuracy is high, and the problems that a barge or a large floating crane is influenced by ebb and flow, the construction operation time is short, and the on-water operation face limitation is large are solved.
Owner:中交中南工程局有限公司

Floating and suspending tidal floating type culture net cage

The invention relates to sea culture net cages, in particular to a floating and suspending tidal floating type culture net cage comprising a frame and a net. Frame vertical pipes penetrate the central through holes of middle connecting plates to connect to the central holes of connecting plates on the top of the vertical pipes in a screwed manner. Top transverse connecting pipes and middle transverse connecting pipes are two parallel steel rollers, and the left and right ends of each steel roller are connected to the connecting plates on the left and right sides in a reversely-screwed manner. The tops of the vertical pipes are tied to cables, and a plurality of floats are hung on the cables in series. The floating and suspending tidal floating type culture net cage has the advantages that the processing amounts of components and parts to be processed are small, most of the components and parts to be processed are made of existing standard materials, structure is simple, and cost is saved; the floats are selected according to the total floatage demands, the lengths of the cables are selected according to the depth of seabed, so that the net cage is at a suspended stopping state of the bottoms of piles right separating from the seabed at high tide, and the lower portions of the piles are embedded into the loam of the seabed at low tide; the net cage floats with the ebb and flow and can be prevented from being caught by the loam of the seabed, seawater exchange by entering and exiting the net cage is benefited, and activities and the healthy growth of sea cucumbers are promoted.
Owner:QINGDAO HAICHEN NET CAGE SCI & TECH

Seedling culture method

The invention belongs to the technical field of agricultural production equipment, and particularly relates to a low-shed ebb-and-flow irrigation seedling culture method which includes the steps: laying a seedling bed which is an ebb-and-flow seedling bed and comprises a liquid storage tray and an annular conveying belt; building a heat preservation shed; feeding nursery trays, starting the annular conveying belt and placing the nursery trays on the annular conveying belt one by one until the liquid storage tray is filled with the nursery trays; performing irrigation until rice seedlings are formed; discharging the nursery trays, reversely starting the annular conveying belt, carrying the nursery trays conveyed to an outlet of the heat preservation shed to a placing rack one by one by an operator standing at the end of the heat preservation shed, and finishing seedling culture. The nursery trays are fed into the seedling bed by the annular conveying belt, the nursery trays on the seedling bed are removed by the annular conveying belt, automatic operation of an ebb-and-flow irrigation system is realized, and production efficiency is improved. In addition, as manual operation is avoided, the building height of the heat preservation shed is greatly reduced, space use ratio is increased, and cost is saved.
Owner:岳西神农氏农业科技有限公司

Small wind-tide power generation device

The invention provides a small wind-tide power generation device. The small wind-tide power generation device comprises a turbine set, a generator, a storage battery, an input device, a grid-connected inverter, an electric energy meter, an electric reactor, an output device, a user side, an outside water gate, an inside water gate, a water reservoir, a wind wheel and a wind power generator. The small wind-tide power generation device converts potential energy of tidal energy of an ocean during ebb and flow into mechanical energy and then converts the mechanical energy into electric energy, so that the whole process is clean and environment-friendly and produce no pollution and public nuisance; the power generation by utilizing the tidal energy is a power generating form utilizing a novel renewable energy source, and power generation by utilizing wind energy is clean and has high environmental benefits, so that the small wind-tide power generation device does not generate waste water, waste gas and other byproducts during the power generation, can meet needs of new energy power generation better, and can be applied to a region with abundant wind energy; the small wind-tide power generation device can generate power day and night, has more outstanding continuous power generating capacity, can effectively reduce utilization of other conventional energy, and is more environment-friendly and energy-saving.
Owner:TIANJIN XINZHONG TECH

Channel shaped deep water tidal channel formed by means of 'bidirectional contraction effect'

The invention belongs to the field of marine traffic engineering, and in particular relates to a channel-shaped deep water tidal channel which is formed through dredging by using a 'two-way water control effect'. The technical proposal is to set continuous and straight diversion dikes or quays basically along a main stream direction of ebb and flow in a sea area where reverse current is given a priority so as to form the channel-shaped deep water tidal channel in a shape of 'horn shaped mouth gates at two ends and a long and narrow passage in the middle', wherein the channel forms a basin for shipping or a deep water channel; and the diversion dikes or the quays at the two sides of the channel form a port deep water coastline. The technical effects of the channel-shaped deep water tidal channel are as follows: the 'two-way water control effect' allows the overall sediment transport capacity of flow to be not less than the water sediment concentration; and the water depth of the basin for shipping and a sea-route water area after basic construction deepening is maintained for a long term; and the formed channel-shaped tidal channel has the advantages of straight coastline, long coastline, wide water area breadth, fast channel water area flow rate, deep water depth, small back silting, and good flow pattern. The 'two-way water control effect' is applied to regulating the depths of coastal port coastlines and sea routes.
Owner:马兴华

Shell breaking-free batch sowing and seedling raising method of seedless watermelons

ActiveCN107124933ANo difference in germination rateImprove the utilization rate of graftingSeed and root treatmentCultivating equipmentsYarnFiber
The invention provides a shell breaking-free batch sowing and seedling raising method of seedless watermelons. The method comprises the following steps: soaking seedless watermelon seeds in a 0.02 g / L sodium surfactin and 1.5 g / L potassium sulfate mixed solution for 6 h, scrubbing the surface mucus of the seeds by using lime, cleaning the seeds, and air-drying the seeds until the water content is 50-55%; wrapping the seeds with a cotton yarn cloth having a weight of 750 g / m<2> and a water content of 175-200% according to a seed density of 25,000-30,000 grains / m<2>, and accelerating the germination of the seeds at 32 DEG C; preparing a matrix from peat with the fiber length of 0-10 mm and perlite with the particle size of 2-4 mm according to a volume ratio of 1:1, and regulating the water content of the matrix to 55-60%; sowing the germination accelerated seedless watermelon seeds according to a density of 3500-4000 grains / m<2>, and germinating the seeds at 32 DEG C; and supplementing water to the matrix in an ebb-and-flow irrigation manner when 50% of the seeds grow out of soil. Compared with routine artificial shell breaking and germination accelerating methods, the shell breaking-free batch sowing and seedling raising method of seedless watermelons has the following advantages: the germination rate has no difference, and reaches 85% or above, the emergence rate reaches 93.1% and is increased by 10.2%, the grafting utilization rate reaches 88.4% and is increased by 17.1%, the seedling rate reaches 95.1% and is increased by 6.6%, and the seed utilization rate reaches 78.3% and is increased by 26%.
Owner:INST OF GARDENING ANHUI ACADEMY OF AGRI SCI
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