193results about How to "Efficient flow" patented technology

The invention discloses an alternating-direct current series-parallel port distribution network and a comprehensive dispatching control method thereof, and belongs to the field of port distribution power and distribution network automation. The distribution network comprises a general step-down station, a branch substation or a switch-on/switch-off station and various distribution subsystems; a multi-channel feeder of the general step-down station provides alternating current power for the various distribution subsystems through the branch substation or the switch-on/switch-off station; each distribution subsystem comprises a shore electronic system, a shore bridge subsystem, a field bridge subsystem, a power charging and converting station subsystem for electric port trailers, a new energy subsystem and a production life subsystem; each distribution subsystem utilizes an alternating current distribution transformer and an AC/DC converter to construct a direct current bus of the distribution subsystem, and the direct current buses of the distribution subsystems are in direct current interconnection through direct current interconnection protection switches; each distribution subsystem is internally provided with multiple sections of direct current buses, and the multiple sections of direct current buses are in direct current interconnection through direct current interconnection protection switches. According to the alternating-direct current series-parallel port distribution network and the comprehensive dispatching control method thereof, the optimal power supply and comprehensive dispatching control of the port distribution network can be achieved.

The invention relates to a composite biological trickling filter for denitrification and dephosphorization, belonging to the technical field of sewage treatment. The biological trickling filter is cylinder-shaped and comprises a water distributing area, a stuffing layer and a water catch area from top to down; wherein, the water distributing area comprises a plurality of rollers, a rotary water distributor, a water inlet pipe, a water pipe, a water sprayer and tracks; the water inlet pipe is connected with the rotary water distributor, the rotary water distributor is connected with the water pipe which is provided with a water outlet, the water sprayer is positioned below the water pipe and is connected with the rollers; five layers of grid frames are arranged vertically in the stuffing layer, and the grid frames separate the stuffing layer into a grid structure, so that the stuffing layer is successively separated from bottom to top into a stone and sand layer, a composite steel slag stuffing layer, a plaster stuffing layer, a sawdust stuffing layer and a coke layer; the water catch area comprises a header tank, a water outlet pipe and a water catch plate, wherein, the header tank is positioned at the bottom of the trickling filer, and the water outlet pipe is connected with the header tank. By introducing the grid frames, the composite biological trickling filter has the advantages of eliminating the problems of the filter blockage, water accumulation and other defects, effectively improving the aerobic bacteria processing performance of the composite biological trickling filter, efficiently removing COD and simultaneously achieving the effects of denitrification and dephosphorization.

The invention relates to a monitoring processing method and device for person flow in a designated area, equipment and a medium. The method comprises the steps: defining the area information of the designated area to be monitored in advance; acquiring user activity position information through a user mobile terminal, and monitoring and tracking a specified person entering the designated area and/or exiting from the designated area; uploading the monitored and tracked specified person information to a server for data comparison and analysis to generate a thermodynamic diagram; according to themonitoring and tracking record of the user mobile terminal, screening and troubleshooting specified person who has entered the designated area and/or come out of the designated area. The method can quickly and effectively mark the action track of the person, and shares the data to form a regional thermodynamic diagram. In this way, the person flow in some areas can be effectively monitored, the social relation and contact crowds of people are checked, the monitoring efficiency is high, and convenience is brought to monitoring and reminding of people in designated areas.

The invention relates to a wear-resisting low-carbon steel shot, a preparation method thereof and a centrifugal atomizing device, and belongs to the technical field of metal abrasives. The wear-resisting low-carbon steel shot consists of the following chemical components in percentage by mass: 0.1-0.3% of C, 0.2-1.0% of Si, 0.3-1.2% of Mn, 0-0.05% of S, 0-0.05% of P, 0.1-0.2% of Ti, 0.07-0.2% of Mo, 0.1-0.2% of V, 0.1-1.1% of Cr and the balance of Fe. The preparation method comprises the following steps: smelting, centrifugal atomizing and forming, drying, coarse screening, quenching and tempering. The centrifugal atomizing device comprises a water storage tank, a centrifugal rotary plate and a centrifugal atomizing tank, wherein the centrifugal atomizing tank sequentially passes through a water outlet pump, the water storage tank and a water inlet pump to form a circulating loop; the upper part of the centrifugal atomizing tank is provided with a centrifugal rotary plate; and the top of the centrifugal atomizing tank is provided with ring-shaped water slots which are distributed along the circumference. The wear-resisting low-carbon steel shot has the characteristics of impact resistance, high cleaning efficiency and fatigue resistance, and has wear-resisting times up to 3500-3600 times; the preparation method is simple and good in thermal treatment effect; and the used centrifugal atomizing device is simple in structure, low in cost and easy to realize.

The invention relates to a changed data extracting device which is realized by being based on an Oracle CDC technique and comprises an analysis unit, a changed table establishment unit, a subscriptionuser establishment unit, a subscription view establishment unit, a data acquisition unit, a transmission and judgment unit and a subscription deleting unit. The invention can communicate with high performance without programming, thereby ensuring the information to be directly communicated in a path which is most effective and fast and is positioned between a source and an object.

A method for conducting grouting construction at the back of the pile bottom of a cast-in-place pile sequentially includes the following steps: (1) manufacturing and arranging a grouting pipe which comprises a plurality of grouting steel pipe sections sequentially connected from top to bottom with the lower end of the lowest grouting steel pipe section connected with a grouting spraying nozzle; (2) assembling a grouting station and a slurry transportation pipeline; (3) grouting. The method is characterized in that the grouting spraying nozzle used in the step (1) comprises a slurry spraying pipe body, a slurry inlet is formed in the upper end of the slurry spraying pipe body, a plurality of slurry discharging holes are formed in the lateral wall of the slurry spraying pipe body, a grouting one-way valve is installed on the slurry discharging holes, a sand wrapping device is arranged on the outside of the slurry spraying pipe body, a sand isolation layer is arranged between the sand wrapping device and the outer side of the slurry spraying pipe body, and the sand isolation layer covers the grouting one-way valve. When the grouting spraying nozzle reaches the bottom of a pile hole, and the portion of the upper end of the grouting pipe higher than the ground reaches preset height, the upper end of the grouting pipe is fixedly connected with a protection barrel at the top of the pile hole. By means of the method, smooth grouting can be achieved, grouting quality is ensured, and success ratio is ensured.

An analytical test device is described for the immunochromatographic determination of the presence of one or more analytes in fluid samples. The device is configured such that the sample is allowed to enter the detection zone simultaneously from many different directions, eliminating stagnation of the flow of the sample. By selection of the porous substrate, the device also allows for the separation of red blood cells from plasma, providing a rapid test for one or more analytes in a sample of whole blood. The device of the present invention may measure more than one analyte simultaneously from a single sample, either by having multiple immunochromatographic pathways fed by a single sample, or multiple analytes detected in the same pathway by way of multiple capture antibodies.

The invention belongs to the technical field of fishing culture machinery, and relates to a combined type impeller, a manufacturing method and an aerator manufactured by using the same. The combined type impeller is annular and is formed in a way that a plurality of single impeller blades are mutually buckled and are in threaded connection with a support disk, one side of each sector impeller shell is provided with a large impeller blade, and the middle of each sector impeller shell is provided with a window for water to flow through and a small impeller blade. The manufacturing method of thecombined type impeller comprises the following steps of blanking, molding and assembling of the single impeller blades and the support disk. In the aerator manufactured by using the combined type impeller, the middle of the combined type impeller is sequentially connected with an output shaft of a reduction box and a motor, the outer end of a bracket connected with the body of the reduction box is connected with a floater, and the external surface of the motor or the external surfaces of the motor and the reduction box is/are provided with a water shield. The invention has the advantages of simple structure, attractive appearance, low production cost and high aerating capability, and is suitable to being used as the aerator in aquaculture industry and sewage treatment.

A recoverable side slope anchor rod grout stop device is provided with a casing pipe, a sliding sleeve, a check ring, a compression spring, a switch mechanism, a grout stop face and a plurality of frameworks. The grout stop face is formed by annularly distributing and combining a plurality of sector-ring-shaped steel sheets. Every two adjacent sector-ring-shaped steel sheets are hinged to each other, and each sector-ring-shaped steel sheet is connected with the check ring. The frameworks and the sector-ring-shaped steel sheets are in one-to-one correspondence. One end of each framework is hinged to the sliding sleeve, and the other end of each framework is hinged to the sector-ring-shaped steel sheet corresponding to the framework. A grout inlet hole connected with a grouting pipe and an exhaust hole connected with an exhaust pipe are formed in the grout stop face, and the casing pipe is provided with a groove which cooperates with a switch to enable the sliding sleeve to be located on the casing pipe to open the grout stop face. During anchor rod grouting, an anchoring segment can be blocked, a bonding material is prevented from flowing towards the free end, the stress structure of an anchor rod is optimized, grouting materials are saved, and the anchoring effect is increased; and after the grouting task is completed, the grout stop device can be recovered by closing the sector-ring-shaped steel sheets through the switch mechanism.

The invention belongs to the technical field of data access control, and discloses a data cross-blockchain access control method and system in a multi-blockchain scene, equipment and a terminal. The data cross-blockchain access control method in the multi-blockchain scene comprises a registration stage, data uploading, data uploading, data access, access record uploading and data acquisition. According to the method, the data cross-blockchain access control requirement in a multi-blockchain scene can be met, and a cross-blockchain access control scheme is provided for solving the insufficient performance and capacity of a blockchain technology in a single-blockchain architecture and the problem that a traditional technology cannot meet or realize asset exchange and information exchange requirements of a complex cross-blockchain service. According to the method, asset exchange, data sharing and contract calling among heterogeneous blockchains in a multi-blockchain scene are allowed; the architecture can be flexibly organized and deployed according to scene guidance, and the method has core function characteristics of a general cross-blockchain transmission protocol and a heterogeneous transaction verification engine, and provides reliable underlying technical support for service blockchain service security management and blockchain Internet formation.

The invention discloses a gene engineering strain capable of safely and efficiently producing Phenazino-1-carboxylic acid. The gene engineering strain is Pseudomonas aeruginosa with a collection number of CCTCC No. M2015040. The gene engineering strain is prepared according to the following steps: performing pathogenic gene knockout on a strain PA1201; then, performing Shenqinmycin metabolizing gene knockout and metabolize metabolizing gene knockout; then, performing point mutation to reduce the bioactivity of PheA; performing isozyme substitution method to reduce the bioactivity of chorismic acid/ pyruvic acid lyase; increasing a phzC gene copy number in a genome; replacing an aroG promoter with a strong promoter Ptac so as to enhance the gene expression level of DAHP synthase; and enhancing the Phenazino-1-carboxylic acid biosynthetic gene cluster expression level and Phenazino-1-carboxylic acid efflux pump MexGHI-OpmD expression level by a promoter replacement method. The obtained strain is capable of safely and economically producing Phenazino-1-carboxylic acid with superhigh yield.

Chemical mechanical polishing pads are provided, wherein the chemical mechanical polishing pads have a polishing layer comprising an interpenetrating network including a continous non-fugitive phase and a substaintially co-continuous fugitive phase. Also provided are methods of making the chemical mechanical polishing pads and for using them to polish substrates.

The invention provides an electrochemical oxidation device for advanced treatment of wastewater produced by amidoximation. The device comprises a direct current stabilized voltage supply (1), a constant flow pump (2), a storage tank (3), an advanced oxidation tank (4) and a drainage storage tank (5), wherein an electrode array which is connected with the power supply and consists of an oxide anode of a titanium sheet substrate and a stainless steel cathode is arranged in the reaction tank. According to the electrode array consisting of the oxide anode of the titanium sheet substrate and the stainless steel cathode, organic matters in water are directly oxidized or directly mineralized by utilizing high potential and catalytic activity of the anode, the device has high oxidizing ability compared with a general chemical reaction, electrons are mainly taken as the reagents, and no other agents need to be added. With the adoption of the structure, the electrochemical oxidation device disclosed by the invention is wide in adaptability, convenient and flexible to operate, environment-friendly, easy and convenient to maintain and can continuously operate, and no oxidation reductant needs to be added.

Disclosed is a cooperative airflow control device provided with a device information storage unit (102) which stores device information (110S) received by a device information receiving unit (101), a priority order setting unit (103) which sets the priority order of at least one airflow generating device (110), a control content determination unit (104) which determines the control content of at least one out of the control content of the device main body and the control content for the airflow generating device (110) on the basis of the device information (110S) and the priority order, and a control content notification unit (105) which transmits the control content determined by the control content determination unit (104) to the airflow generating device (110) in cooperation with the control content determination unit, wherein an airflow is effectively controlled in accordance with the indoor environment or needs of a user, on the basis of the device information (110S) and the priority order.

The invention discloses a water push and oxygenation device for pond internal circulation flowing water culture. the water push and oxygenation device comprises an oxygenation machine which is connected with multiple oxygenation pipes through pipelines; the oxygenation pipes are provided with multiple holes for pushing water and generating oxygenation; the multiple oxygenation pipes are arranged side by side; the oxygenation pipes are welded with a fixing support. The device of the invention is suitable for culture of multi-kinds and multi-sizes; equalized sale is achieved and capital turnover is accelerated; the production cost can be reduced by 35%; 75% fish metabolite and residual forage can be effectively collected so that virtuous circle of the pond is guaranteed. The water push and oxygenation device for pond internal circulation flowing water culture is used for culturing fish with flowing water; air is used for lifting water and water pushing is more efficient; the cost is lower and there is no need of maintenance; water lift by air can effectively realize water push and oxygenation; flowing water passing through the pond can improve water quality and flush excrement of fish to downstream so as to collect and clear the excrement; floating and sunken solid body can be removed.

The invention discloses a series-parallel connection plug-in hybrid electrical vehicle driving system and method. The driving system structurally comprises a driving motor, an energy storage unit, a combustion motor, a power separator, a power variator and a charger, wherein the driving motor serves as an electric generator and an electric motor, one end of the electric motor is connected with the energy storage unit through the power variator, and the other end of the electric motor is connected with the power separator connected with the combustion motor. By using the driving system and the method, the mechanical connection mechanism can be effectively simplified, the size and weight are reduced, the electric motor selectively performs driving according to different operation conditions of a vehicle and capacitance of the energy storage unit, effective flowing of energy among the combustion motor, the electric motor and the energy storage unit can be guaranteed, efficiency of the electrical driving system is improved, and the fault occurrence rate is reduced.

The invention discloses an environment-friendly metallurgy extracting method for lead-zinc oxide ores, and belongs to the field of lead zinc ore metallurgy. The method comprises the following steps: reducing and volatilizing the lead-zinc oxide ores to obtain high-quality lead-zinc oxide enrichment, and separating lead and zinc from other impurities in raw ores; carrying out sulfuric acid leaching-purifying-electrodeposition on the lead-zinc oxide enrichment to obtain cathode zinc, and casting to obtain zinc ingot products; and after slurrying zinc leaching residues, continuously adding in a suspension electrolytic bath for producing lead powder by electrodeposition, and after washing, filtering and briquetting the lead powder, smelting into lead bullion. The lead and the zinc are highly enriched effectively by pyrogenic-process reduction and volatilization, and influence of impurities such as Fe, Si, Ca, Mg and Al to a smelting process is greatly reduced; and the zinc and the lead are effectively extracted in a sulfuric acid system to directly obtain the cathode zinc and the lead bullion, organic circulation of lead and zinc smelting systems is realized, consumption of energy and materials is greatly reduced, meanwhile, 'zero' consumption of sulfuric acid, 'zero emission' of waste water and 'zero' emission of smelting wastes are realized simultaneously, and the environment-friendly metallurgy extracting method for the lead-zinc oxide ores is environment-friendly.

The present invention is a kind of single pressure absorbing refrigerator and relates to refrigerating equipment technology. The single pressure absorbing refrigerator includes a generator, a cooling water sleeve, a rectifier, an evaporator, a pre-cooler, a combined condensator/absorber, a liquid storage, a solution heat exchanger and a bubble pump. It has three loops, including one refrigerant loop between the evaporator and the condensator/absorber; one pressure poiser loop among the generator, the evaporator and the condensator/absorber; and one absorbent loop among the generator, the liquid storage and the condensator/absorber. The present invention has the advantages of silencing operation under single pressure, utilization of solar energy and waste heat, no power consumption, capacity of forming small household air conditioner, etc.

The invention discloses a fruit fresh-keeping transport box. The fruit fresh-keeping transport box comprises a box body, and the box body is cylindrical; a drain port is formed in the lower part of the outer side surface of the box body; a movable door is arranged at the lower part of the outer side surface of the box body; sliding grooves are formed in the inner side wall of the box body; a firstsupporting plate is fixedly connected to the interior of the box body; a second supporting plate is movably connected to the interior of the box body; the first supporting plate is located below thesecond supporting plate; two sets of symmetric first through holes are formed in the first supporting plate; and springs which are arranged at equal intervals are fixedly connected to the top of the first supporting plate. According to the fruit fresh-keeping transport box, the external force can be effectively buffered, mutual extrusion and collision of fruit can be effectively avoided, the fruitcan be effectively transported, the transportation effect is good, the buffering performance is high, the phenomenon that the fruit gets rot too fast can be avoided, the fruit can be effectively protected, and therefore the problems that the fresh-keeping performance is poor, and the fruit is prone to get damaged due to collision can be effectively solved.

The invention discloses a computer case which can efficiently dissipate heat and is excellent in protection performance. First openings are formed in the two sides of the machine box, a second openingis formed in the other side of the machine box, a power mechanism is arranged on one side of the top in the machine box, a first synchronous belt is arranged on the power mechanism, a reciprocating transmission mechanism is arranged on the first synchronous belt, and a vertical plate is arranged on the reciprocating transmission mechanism. According to the invention, the fan blades can do reciprocating motion during rotation; efficient flow of air is facilitated, the quality of air entering the case can be ensured; therefore, efficient and high-quality heat dissipation can be carried out in the case; and the rotating speed of the fan blades can be automatically controlled, adjustment can be conveniently conducted according to the use condition of equipment, the heat dissipation quality isbetter guaranteed, the temperature in the case is effectively reduced, protection can be effectively conducted, external collision can be effectively resisted, the stability of the case is guaranteed, and the service life of internal parts of the case can be prolonged.