32results about How to "Solve flow problems" patented technology

The method raises accuracy of HFC network topology greatly, and generates HFC network topological graph rapidly and automatically. Each HFC network device possesses a specific address. Network management computer at front end generates topological data through following steps: computer at front end sends command of generating data to specific device; receiving the command, the specified device sends local topological data to down going transmission channels according to broadcasting mode, and meanwhile sending the data to up going channel; all devices in lower level store address data of device in upper level into local network table; the said computer at front end takes back all network topological table of HFC network devices one by one according to unicast mode; through simple process, the computer at front end forms whole HFC network topology of cable TV.

The invention relates to an anti-counterfeiting traceability system and method for a bill supply chain based on blockchain NFT, and belongs to the technical field of blockchain applications. In this method, in the online and offline business chain, by setting up a blockchain oracle, real-time monitoring of the real assets of offline chain bills is performed; the NFT contract is safely generated and transferred through the online chain and offline chain parallel business chain system to realize Information synchronization of online and offline bill supply chains; the invisible anti-counterfeiting QR code anti-counterfeiting labels printed on bills are deployed on the blockchain through smart contracts; The platform calls the smart contract to query the basic information and circulation information of the bill. The invention realizes the transparency, decentralization and traceability of the bill supply chain, maintains high fidelity and timeliness, and is beneficial to improve the security of bill transactions.

The invention relates to an economizer with a condensed water guide plate. The scheme is that the economizer comprises an economizer body, wherein a smoke outlet is arranged at the upper end of the economizer, a smoke inlet is arranged in the middle of the lower end, drain ports are formed in two sides of the smoke inlet, a supporting rod is arranged on an inner base plate in the economizer body between the smoke inlet and the drain ports, a smoke distributing plate is installed at the upper end of the supporting rod, the lower end of the smoke distributing plate inclines towards the direction of the drain ports, multiple smoke distributing ports are longitudinally formed in the smoke distributing plate at intervals, condensed water distributing plates are installed on the upper sides of the smoke distributing ports, the lower ends of the condensed water distributing plates upward incline relative to the smoke distributing plate, and the inner base plate in the economizer body is provided with a water blocking plate surrounding the smoke inlet. The flowing direction problem of condensed water is solved, a boiler or a heating furnace and other devices are not corroded and are protected, the service life of the devices is prolonged, the condensed water does not flow towards the ground, environment pollution is not caused, the condensed water does not flow onto the ground and ices up in winter, and operators are prevented from being injured due to falling down.

The invention relates to a domestic sewage treatment system which comprises a water inlet connected with a domestic sewage pipeline and a water outlet connected to a treated purified water delivery pipeline, wherein the water inlet and water outlet are respectively arranged on one tank body; the tank body is divided into a biological reaction region and a precipitation region; the bottom of the biological reaction region is provided with an aerator and a biological filler; domestic sewage fed into the tank body from the water inlet is treated by the biological reaction region and delivered into the precipitation region; and the purified water subjected to precipitation treatment is output outwards from the water outlet. The system well solves the problem of flowing of the sewage in one tank body, effectively saves the cost and reduces the occupied area.

The invention provides an electrical heating continuous coal pyrogenation coking furnace which includes a furnace body, the furnace body is equipped with a hopper, a pre-heating segment, an electrical heating main body segment, a gas cycle cooling segment and a coke discharge segment orderly from upper to down; control valves are set among the hopper, the pre-heating segment, the electrical heating main body segment, the gas cycle cooling segment and the coke discharge segment. The coking furnace has advantages as follows: 1. the furnace can control rolling speed and heating effect of mouldedcoal efficiently in rolling process of coking coal; 2. the furnace solves temperature and environment atmosphere required by the coal pyrogenation coking; 3. the furnace changes traditional coke cooling method by water into inert gas cycle for realizing heat energy utilizing fully, is energy-saving and environmental-friendly; 4. the furnace reduces raw material cost, increases coke quality and reduces coke foam and coke particle generating; 5. the furnace can replace full coal gas by electrical heating which can solve smoke pollution efficiently.

The invention discloses a real-time monitoring system and method for visualizing two-dimensional fracture network rock mass seepage dynamics; laying a two-dimensional fracture network rock mass in the second experimental area, and covering the second sealing cover; realizing overall hydraulic loading or partial hydraulic loading according to test requirements Hydraulic loading; connect the water volume monitoring device with the computer to monitor the water volume in real time; color the water body, carry out overall hydraulic loading or local hydraulic loading on the water body according to the test requirements, and observe the flow path of the water body in the two-dimensional fracture network under different conditions and Changes in the fracture network; According to the water volume and the final total water flow of the water body from different fracture paths recorded by the water volume monitoring device at different times, the flow law of the water body in the two-dimensional fracture network is obtained. It can be used to simulate different hydraulic loading conditions, observe the flow path of water in the two-dimensional fracture network and the change of water volume in different paths in real time, reveal the flow law of water in the two-dimensional fracture network, and is beneficial to the study of the flow law of groundwater in actual engineering .

The invention discloses a method and device for sorting information points for operation and maintenance. The method includes the following steps: obtaining information point data, calculating the logical connection degree of a tree diagram, and generating a logic diagram of information points; grabbing switch data, calculating The actual connection degree of the information point generates an actual connection diagram; obtains the real-time data and bandwidth demand data of various business application software related to the information point, and combines the calculated logical connection degree and actual connection degree to generate a physical diagram ; At the same time, the corresponding device is disclosed. The present invention greatly shortens the fault location time required for faults encountered in operation and maintenance, systematically sorts out and solves the problem of information flow along the flow direction of each device, and sorts the importance of nodes to guide us to determine the daily operation The location of key equipment for maintenance inspections, so as to formulate a lean operation and maintenance plan.

The invention belongs to the technical field of axial compressors, and relates to an aerodynamic design method of a subsonic adsorption type axial compressor, in order to solve the problems of increasing of blade rotating angles of a subsonic axial compressor and boundary layer separated in a moving blade during stage load increasing as well as the problems of suction pipeline layout difficulty, blade strength reduction and the like caused by boundary layer suction in the moving blade. On the premise of unchanging an inlet velocity triangle, with design stage load coefficient increasing gradually and exceeding a conventional design value, outlet axial velocity of the moving blade is increased greatly so as to reduce diffusion factors in the moving blade, so that efficient flow of the moving blade is guaranteed; and boundary layer suction is utilized for achieving internal flow of a fixed blade. As boundary layer suction is performed in the moving blade as well as the fixed blade, problems of poor blade strength of a rotatable part and difficulty in suction structure design are solved effectively; and as compared with a tandem cascade technique, the aerodynamic design method has the advantages that blades can be decreased, and accordingly size and weight of an engine are reduced. The method can be applied to aerodynamic design of aero-engines with high thrust-weight ratio.

The invention relates to a vibrating screen plate tower for continuous production of liquid-liquid-liquid three-phase extraction. A cylindrical tower body comprises a light-phase clarification outer tank connected to the upper part of the cylindrical tower body and a tower bottom clarification tank connected to the lower part; a spindle leads to the lower part of the cylindrical tower body from the exterior of the light-phase clarification outer tank; the upper part and the lower part of the cylindrical tower body are provided with a conical liquid baffle and a light-phase distributor which are arranged on the spindle respectively; a middle screen plate is arranged in the middle of the spindle; a heavy-phase guide cylinder is arranged inside the light-phase clarification outer tank; a heavy-phase mixing chamber is arranged inside the heavy-phase guide cylinder; a bottom liquid outlet of the heavy-phase guide cylinder is positioned at the conical liquid baffle; a polymer phase distributor and an aqueous phase distributor are arranged on a polymer phase conduit and an aqueous phase conduit in the heavy-phase mixing chamber; a tower top screen plate is fixedly arranged on the spindle in the heavy-phase mixing chamber; a sealing ring is arranged between the spindle and the heavy-phase mixing chamber; and two layers of deflection baffles which are arranged in a staggered mode are fixedly arranged on the spindle in the tower bottom clarification tank. The vibrating screen plate tower has high mass transfer efficiency and high controllability.

The invention relates to an attendance system based on gesture recognition, the attendance system includes: a monitoring module, the monitoring module is composed of one or more cameras, and is used to identify employees in the area to be monitored; a gesture recognition module, the gesture recognition The module is used to perform gesture recognition on the employee group; the determination module is used to perform gesture recognition according to different gestures of individual employees, and determine the personal information of the corresponding employee on duty. This application solves the problem of cheating existing in employee card attendance, fingerprint attendance, and facial recognition attendance during employee attendance checks, reduces queuing time, and improves attendance efficiency.

The invention discloses a heat tracing type crude oil train unloading skid, which includes a middle heat exchange tank, a plate heat exchanger is arranged on one side of the middle heat exchange tank, a circulation pump is arranged between the middle heat exchange tank and the plate heat exchanger, and the circulation pump is close to the One end of the middle heat exchange tank is connected to pipe B, and the end of the middle heat exchange tank close to the circulation pump is connected to pipe C. The upper end of pipe C is connected to a crude oil return pipe. The top of the crude oil return pipe is provided with a top crude oil return port. The side is connected with a crude oil return pipe, the bottom of the crude oil return pipe is provided with a bottom crude oil return port, one end of the pipe C is externally connected with a steam heat tracing pipe, and the top of the steam heat tracing pipe is provided with a top steam heat tracing inlet. Crude oil train unloading skid, through the upper circulating heating and unloading crane pipe, the bottom circulating heating and unloading crane pipe, and the circulating heating of all equipment in the entire pipeline, it saves time and increases work efficiency under extremely cold conditions, and solves the problem of The problem of crude oil viscosity.

The invention relates to a carbon-based phase-change energy storage material and a preparation method thereof. The preparation method comprises the following steps: taking lithium carbonate and potassium nitrate as raw materials, and heating after uniformly mixing, thus obtaining mixed molten salt of lithium carbonate-potassium nitrate; adding potassium chloride in the mixed molten salt, and heating, thus obtaining low-melting point eutectic molten salt; grinding the eutectic molten salt into powder, adding graphene, and uniformly mixing, thus obtaining graphene / eutectic molten salt powder; uniformly mixing the graphene / eutectic molten salt powder with an expansible graphite matrix, thus obtaining graphene / mixed molten salt powder; carrying out cold-press molding on the graphene / mixed molten salt powder, thus obtaining a sample in regular shape; drying the sample, cooling to room temperature, and patching, thus obtaining the carbon-based phase-change energy storage material. Accordingto the carbon-based phase-change energy storage material disclosed by the invention, the graphene is added in an eutectic salt medium, the heat conductivity coefficient of a phase-change medium is increased on the premise that higher potential heat of the eutectic molten salt is reserved, and excellent heat storage efficiency is obtained.

The invention discloses a vertical powder material metering and filling device which is provided with a hopper, wherein two side surfaces of the hopper are flat surfaces, the front surface is a stepped vertical semi-cylindrical surface, the rear surface is a semi-cylindrical surface of which the axis forms an angle of 45-70 degrees with the horizontal plane, and the upper surface is a stepped surface. A servo motor is arranged on the lower stepped surface of the hopper; a motor shaft of the servo motor is coaxially connected with a blanking screw; the lower end of the hopper is connected with a material guide pipe matched with the blanking screw; an aeration nozzle is arranged close to the bottom of the rear semi-cylindrical surface of the hopper; the upper part of the hopper is provided with a material level sensor and a pair of weighing sensors; and the stepped surface at the upper end of the hopper is provided with an exhaust powder filter and a feed inlet. Through the invention, the powder is effectively prevented from bridging in the hopper, and a material stirring mechanism is omitted; and thus, the structure is simplified, the equipment weight is greatly reduced, and the metering and filling device can implement the metering and filling of powder material by multiple metering methods.

The invention relates to a method for improving water traces noise of a liquid crystal display device and a device, the method executes the following steps: frame synchronization signals which are produced by a time schedule controller is feedback to a scaler, a synchronous relationship of the frame synchronization signals and pulse width modulation signals is built in the scaler, video signals are treated according to the pulse width modulation signals after the synchronous relationship is built, thereby reducing the luminance difference of light and shade areas of the video signals. The device comprises the time schedule controller, the scaler and an inverter, wherein the time schedule controller is used to treat the video signals according to the pulse width modulation signals after the synchronous relationship is built, the scaler is connected with the time schedule controller and is used to build the synchronous relationship of the frame synchronization signals and the pulse width modulation signals, and the inverter is connected with the scaler and is used to supply power. The invention provides the method for improving water traces noise of the liquid crystal display deviceand the device, thereby solving the flow problem of the water traces noise, further improving the water traces noise which stops flowing, and increasing the quality of pictures.