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60results about How to "A lot of water" patented technology

Method of improving soil by planting vegetables in coastal prawn culture pond during winter break

The invention discloses a method of improving soil by planting vegetables in a coastal prawn culture pond during winter break, in particular vegetables with high economic values are planted in a pondduring winter break, and a large amount of vegetables with high economic values are produced while water quality is purified and water environment is improved. The method of improving soil by plantingvegetables in the coastal prawn culture pond during winter break includes the steps of shrimp pond arrangement, field planting, irrigation and vegetable harvesting. A plurality of vegetable plantingareas are formed by horizontal and vertical ridging, different kinds of vegetables are subjected to field planting in adjacent vegetable planting areas, so that the water improving quality effect of each area is balanced; vegetable planting does not need chemical fertilizer application or pesticide spraying, the method is energy-saving and environmentally friendly, in combination with a good waterdrainage and irrigation system, vegetables of high yield and high quality can be obtained. The method combines prawn culturing and vegetable culturing in the pond together, reflects the sustainable development idea of considering both ecological and economical benefits, and has a broad application prospects.
Owner:ZHEJIANG INST OF FRESH WATER FISHERIES +1

Novel flat-bottom catenary open channel and solving method of hydraulic optimal section thereof

The invention discloses a novel flat-bottom catenary open channel and a solving method of a hydraulic optimal section thereof. An opening of the flat-bottom catenary open channel is upward, and the section of the flat-bottom catenary open channel comprises a flat bottom and two catenary side edges which are positioned on two sides of the flat bottom and are smoothly connected with the flat bottom.The solving method comprises the following steps: designing the shape of the hydraulic section of the water conveying channel into a flat-bottom catenary section; establishing a solution model of thehydraulic optimal section of the flat-bottom curved open channel; solving the hydraulic optimal section of the flat-bottom catenary-shaped open channel; and solving the normal water depth and critical water depth of the hydraulic optimal section of the flat-bottom catenary open channel. The method has the advantages that the catenary section has no stress concentration point, and the open channelis not prone to have cracks caused by stress concentration. The open channel is small in leakage, good in stability, excellent in hydraulic characteristic, high in anti-freezing capacity and the like, also has the advantages of being flexible in flat-bottom section design, low in construction difficulty, easy to manage and maintain, easy to compact at the bottom and the like, and can improve thewater delivery efficiency, reduce the water delivery loss and reduce the construction cost.
Owner:UNIV OF JINAN

Automatic heat exchange system for well water

The invention relates to an automatic heat exchange system for well water. Generally, water air conditioners, ground-source energy air conditioners, and chemical, textile and plastic industries use well water at a temperature of about 15 DEG C to prevent sunstroke and reduce temperature, and water pumps which are easy to damage and waste the electricity are used for pumping water. An investigation concludes that underground water is stored on layers because of different geological structures; moisture over 35 meters to underground has fast penetration, short update time and abundant reservesbecause of short distance to the ground surface; and lower layer well water over 100 meters is naturally penetrated for hundreds of years, generally stays in a scarce and exhausted state and even leads to ground sedimentation because of long-term excessive drawing. Therefore, Chinese government makes explicit orders to seal wells and prohibit exploitation, and carries out recharge water supplementto increase groundwater reserves. The automatic heat exchange system for the well water makes well water automatically rise and circulate to carry out heat exchange by building underground water stream channels and skillfully using siphon water stream energy of upper layer water to lower layer water, achieves double utilization of geothermy and water energy, saves electric power and also increases the groundwater reserves.
Owner:蒋明兴

Water filtering and circulating equipment for drainage engineering, and working method thereof

The invention discloses water filtering and circulating equipment for drainage engineering, and a working method thereof. The water filtering and circulating equipment comprises a condenser, a sludgedrying mechanism, a filtering mechanism and a conveying pipe, wherein the filtering mechanism is installed on a supporting frame, the sludge drying mechanism is arranged under the discharging end of the filtering mechanism, the condenser is arranged on one side of the sludge drying mechanism and connected with the condenser, the conveying pipe is arranged under the discharging end of the sludge drying mechanism, the top end of a centrifugal cylinder is rotatably connected with the top surface of a filter box, the bottom end of the centrifugal cylinder is connected with a sewage discharge pipe,the bottom end of the sewage discharge pipe extends out of a transfer box and is rotatably connected with the transfer box, a plurality of groups of filter holes are uniformly formed in the arc-shaped side wall of the centrifugal cylinder and the side wall of the sewage discharge pipe respectively, and a water storage bin is formed between the inner walls of the filter box and the transfer box and the outer wall of the centrifugal cylinder. The equipment of the invention has the advantages that water for drainage engineering is filtered through the centrifugal effect, so that the filtering efficiency is greatly improved, and filtered sludge can be automatically discharged.
Owner:SHANDONG BUSINESS INST

Rapid bus driving roadbed

The invention discloses a rapid bus driving roadbed which comprises, from bottom to top, a soft soil base layer formed by leveling and tamping soft soil and pre-embedded with a main drainage pipe; a gravel layer which is formed above the soft soil base layer by pouring gravel and cement, wherein a retaining wall, a bearing frame and a monitoring structure are arranged in the gravel layer; a rubble layer which is formed by pouring rubbles and cement, wherein a water tank is arranged in the rubble layer; a water permeable brick layer which is a brick body formed above the gravel layer, wherein the water permeable brick layer is provided with a water permeable structure; an asphalt concrete layer which is formed above the water permeable brick layer, wherein the asphalt concrete layer comprises lower coarse-grain asphalt concrete, upper medium-grain asphalt concrete and stiffening rods inserted between the lower coarse-grain asphalt concrete and the upper medium-grain asphalt concrete; and a pavement layer which is formed above the asphalt concrete layer. According to the rapid bus driving roadbed, rapid drainage can be achieved, the safety of rapid bus driving in rainy days is improved, meanwhile, pavement settlement is controlled, effective jacking and timely response are conducted, and the service life of the rapid bus driving roadbed is prolonged.
Owner:CHINA ROAD & BRIDGE

Unobstructed full-circle sprinkling and stabilized pressure drip-proof micro atomizer and mounting and application method thereof

ActiveCN104549807AAvoid the problem of not being able to achieve full circle sprayingSpray evenlySpray nozzlesWater flowEngineering
An unobstructed full-circle sprinkling and stabilized pressure drip-proof micro atomizer comprises a cap, a body fitly mounted to the cap, and a reflector connected with the body. The unobstructed full-circle sprinkling and stabilized pressure drip-proof micro atomizer is characterized in that the body is connected with the reflector through a fixing rod with T-shaped section, the body is hollow and is internally provided with a cavity having T-shaped section and fitting mounting of the fixing rod, the reflector is provided with a fixing rod mounting hole, the fixing rod is mounted in the cavity of the body, the tail end, extending out, of the fixing rod is inserted to the reflector and in tight fit with the fixing rod mounting hole. A mounting and application method of the atomizer includes: the atomizer is mounted; the cap is connected to an inflow pipe of a spray irrigating unit in a threaded manner or through a bevel connector; an opening pressure value of the atomizer is determined according to magnitude of elasticity of a pressure-stabilizing drip-proof membrane; when interior water pressure of the inflow pipe is higher than the opening pressure value of the atomizer, spray irrigation water flows through the pressure-stabilizing drip-proof membrane and is atomized by the reflector, and full-circle sprinkling starts.
Owner:NANJING AGRI MECHANIZATION INST MIN OF AGRI

Method for rapidly increasing species richness and diversity of mercury thallium ore waste storage yard

The invention discloses a method for rapidly increasing species richness and diversity of mercury thallium ore waste storage yard. According to the method, a small amount of industrial and agricultural waste is added into mercury thallium ore waste to serve as a composite modifier to be combined with phytoremediation, so that the richness and diversity of community species in the environment of the mercury thallium ore waste storage yard are rapidly increased; the industrial and agricultural waste are red mud and fish manure respectively, the mass fraction of fish manure added into the mercury thallium ore waste is controlled to be 4.0%-5.0%, and the mass fraction of the added red mud is controlled to be 0.5%-1.0%. According to the method, the fish manure and the red mud are ingeniously applied to the mercury thallium ore waste, so that the environmental condition of high-toxicity mercury thallium ore waste is remarkably improved, the purpose that waste is used for treating waste is achieved, a more suitable environment is provided for phytoremediation after the waste is utilized, and the ecological functions of water and soil conservation, carbon sequestration, biological diversity and the like can be achieved.
Owner:GUIZHOU UNIV

Unmanned aerial vehicle cluster cooperation relay fire extinguishing system in complex space

The invention discloses an unmanned aerial vehicle cluster cooperative relay fire extinguishing system in a complex space, which belongs to the technical field of unmanned aerial vehicles and comprises a reconnaissance unmanned aerial vehicle, a window breaking unmanned aerial vehicle, a fire extinguishing unmanned aerial vehicle cluster, a master console and a water hose with a water hose joint ring. Firstly, a reconnaissance unmanned aerial vehicle carrying a depth camera and a radar is remotely controlled to carry out fire scene reconnaissance and three-dimensional map construction, then a window breaking unmanned aerial vehicle is remotely controlled to carry out window breaking, then a master console plans a motion path and hovering position coordinates of a water hose and a fire extinguishing unmanned aerial vehicle, and a fire extinguishing unmanned aerial vehicle cluster clamps the water hose to bypass a complex space to reach the position nearby a fire source; and finally, the unmanned aerial vehicle hovers at a hovering position coordinate point and sprays a fire extinguishing agent for extinguishing fire, and a new unmanned aerial vehicle is dispatched by the master console for replacement before power of the unmanned aerial vehicle in work is exhausted. Through cooperative relay of the unmanned aerial vehicle cluster, the water hose can bypass complex obstacles, it is guaranteed that the water hose smoothly conveys a fire extinguishing agent, and long-time uninterrupted fire extinguishing for high buildings and complex spaces is achieved.
Owner:JILIN UNIV

Bottom cleaning drum shearer for thin coal seams

The invention provides a bottom cleaning drum shearer for thin coal seams. The drum shearer is characterized in that a cutting part shell comprises a first cutting drum transmission cavity shell, a transition section shell and a second cutting drum transmission cavity shell; the first cutting drum transmission cavity shell extends out of ledges of a middle groove and transition groove of a scraper conveyer towards the coal wall side via the transition section shell and bends towards the lower part; a top slope cut edge structure and a bottom slope cut edge structure are arranged at the rear end of the transition section shell; inner cavity flanges of first and second planetary mechanisms are respectively connected with inner cavity flanges of the first and second cutting drum transmission cavity shells by bolts; outer end face key grooves of the first and second planetary mechanisms are respectively positioned together with outer end face key grooves of the first and second cutting drum transmission cavity shells by end face flat keys. The drum shearer can be used for effectively solving the problem of triangle coal and satisfy the minimum mining height conditions and the adaptability to change of the thickness of coal seams, and conduces to improving the coal charging effects.
Owner:国科中迈(徐州)能源科技有限公司

Water filtration and circulation equipment for drainage engineering and its working method

The invention discloses a water filtration and circulation device for drainage engineering and a working method thereof, comprising a condenser, a sludge drying mechanism, a filtering mechanism and a conveying pipe; There is a sludge drying mechanism, a condenser is installed on one side of the sludge drying mechanism, and is connected to the condenser, and a conveying pipe is arranged directly below the discharge end of the sludge drying mechanism; the top of the centrifugal cylinder rotates with the top surface of the filter box Connection, the bottom end of the centrifugal cylinder is connected with the sewage pipe, and the bottom end of the sewage pipe extends out of the transfer box, and is connected with the transfer box in rotation. The arc-shaped side wall of the centrifugal cylinder and the side wall of the sewage pipe are evenly arranged with multiple groups The filter hole, the water storage bin is formed between the inner wall of the filter box and the transfer box and the outer wall of the centrifuge cylinder; the present invention has the filter equipment to filter the water of the drainage project through the centrifugal effect, which greatly improves the filtering efficiency, and the filtered water The advantage that the sludge can be discharged automatically.
Owner:SHANDONG BUSINESS INST

Two-film greenhouse back slope design and construction method

The invention relates to the technical field of two-film greenhouse structures and in particular relates to a two-film greenhouse back slope design and construction method. The two-film greenhouse structure comprises a foundation structure and a two-film control structure, wherein a greenhouse framework is arranged above the foundation structure; the two-film control structure is arranged above the greenhouse framework and comprises a shutter machine, waterproof heat insulation films, a heat insulation mat, a linkage column, a film rolling machine and a transparent shed film; the waterproof heat insulation films are arranged on the left and right sides of the film rolling machine; the film rolling machine is arranged above the shutter machine; the transparent shed film is arranged above the linkage column; and diversion structures are formed in the left and right sides of the two-film control structure. According to the two-film greenhouse back slope design and construction method, thecotton quilt is moved backwards by construction measures, so on one hand, the shading area is reduced compared with the traditional method, and illumination shot into the greenhouse is not blocked inthe scheme; on the other hand, the cotton quilt does not block front and rear ventilation openings so as not to form convection.
Owner:WEIFANG UNIV OF SCI & TECH

A thin coal seam bottom cleaning drum shearer

The invention provides a thin coal seam bottom clearing type drum shearer. The cutting part housing is composed of the first cutting drum transmission chamber housing, the transition section housing and the second cutting drum transmission chamber housing. The first The casing of the cutting drum transmission chamber extends to the side of the coal wall through the transition section casing to the outside of the middle trough of the scraper conveyor and the side of the transition trough and bends downward. The bottom bevel trimming structure, the inner cavity flanges of the first planetary mechanism and the second planetary mechanism are respectively connected with the inner cavity flanges of the first cutting drum transmission chamber shell and the second cutting drum transmission chamber shell by bolts, The outer end surface key grooves of the first planetary mechanism and the second planetary mechanism are respectively positioned with the outer end surface key grooves of the first cutting drum transmission chamber housing and the second cutting drum transmission chamber housing through end surface flat keys. The invention can effectively solve the problem of triangular coal, meet the minimum mining height condition and the adaptability of coal seam thickness changes, and improve the coal loading effect.
Owner:国科中迈(徐州)能源科技有限公司

Water purifying device

The invention belongs to the technical field of water purifiers and discloses a water purifying device. The water purifying device comprises an outer frame, wherein an electric pump for sucking a water source is arranged in the outer frame; a whirlpool settler is arranged at the outlet of the electric pump; a purifying component is arranged at the output end of the whirlpool settler; a purified water outlet and a sewage outlet are formed in the purifying component; the purifying component comprises a casing; at least two double-control film ceramic filter elements are mounted in the casing; a lower-end sealing sleeve is arranged at the lower end of each double-control film ceramic filter element; a cruciform rotating block is arranged below each lower-end sealing sleeve; a through hole is formed in the lower end of the casing; a cleaning handwheel shaft penetrates in the through hole and extends out of the casing; a cleaning handwheel is arranged at the end, extending of the casing, of the cleaning handwheel shaft; the inner end of the cleaning handwheel shaft takes a cross shape matched with the rotating block; and a semicircular cleaning plate attached to the outer side surfaces of the double-control film ceramic filter elements is arranged in the casing.
Owner:ARCHITECTURAL ENG INST GENERAL LOGISTICS DEPT P L A

Automatic anti-freezing device of outdoor fire hydrant and using method thereof

The invention discloses an automatic anti-freezing device of an outdoor fire hydrant and a using method thereof. The automatic anti-freezing device comprises a tubular main body, wherein a water drainage hole is formed in the lower portion of the tubular main body, a mounting base is further arranged in the tubular main body, a rotating shaft is rotationally installed on the mounting base, a cover plate and a water baffle are fixed on the rotating shaft, the cover plate is located above the water drainage hole, and the cover plate is perpendicular to the water baffle; the cover plate and the water baffle rotate around the mounting base through the rotating shaft, and two states that the cover plate is tightly attached to the water drainage hole and the cover plate is separated from the water drainage hole exist; and the automatic anti-freezing device further comprises a bypass pipe, a water ejector is arranged on the bypass pipe, and a water suction pipe is arranged on the water ejector. According to the automatic anti-freezing device, a rotary spring is arranged on the rotating shaft, so that the cover plate is kept in an open state when the cover plate is not used, automatic water drainage is realized, water in a pipeline on a freezing line is discharged into a water collecting pit in a valve well, and the pipeline of the outdoor fire hydrant is prevented from being frozen in winter; and the water ejector can pump back accumulated water in the water collecting pit, and the accumulated water in the water collecting pit is automatically discharged.
Owner:浙江省三建建设集团有限公司
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