10results about How to "Meet technical needs" patented technology

The invention belongs to the technical field of ship and ocean engineering, and discloses a ship seakeeping intelligent forecasting method and system based on a physical information neural network. According to the method, a CFD-RAO method is combined with PINNs, and rapid and high-precision prediction of ship seakeeping is realized by constructing a coupling model of a physical equation and a neural network loss function. According to the invention, rapid and high-precision prediction of ship seakeeping is realized. The method not only can effectively cope with multi-degree-of-freedom coupling motion under complex sea conditions, but also has high real-time performance and adaptability, and provides more scientific and reliable technical support for ship design and navigation safety.

The utility model provides a bag opening device and infusion apparatus packaging equipment, and relates to the technical field of medical instruments, the bag opening device comprises a telescopic assembly, and a flaring mechanism and an air blowing assembly which are in transmission connection with the telescopic assembly, the flaring mechanism comprises a first driving piece, two mounting brackets and a bag opening auxiliary block, the first driving piece is in driving connection with the two mounting brackets, and the first driving piece is in driving connection with the two mounting brackets; bag opening auxiliary blocks are arranged at the two ends of the mounting bracket; the first driving piece drives the two opposite bag opening auxiliary blocks at one end of the mounting bracket to be close to or far away from each other; the bag opening auxiliary blocks extending into the opening of the packaging bag are driven by the first driving piece to be far away from each other so as to expand the opening, then the packaging bag is inflated through the blowing head, the opening of the packaging bag is further expanded, and the problems that in the prior art, a bag opening mechanism is complex in structure, the opening of the packaging bag is narrow, and wound products are difficult to enter are solved. And after the bag is opened, the mechanism is difficult to separate from the opening of the packaging bag, and the technical requirements of infusion apparatus packaging are met.

A 6000 series aluminum alloy medium and thick plate for spinning rims, the aluminum alloy raw material is composed of the following components in weight percentage: Si=0.45~0.75, Fe<0.65, Cu=0.25~0.35, Mn<0.10, Mg=0.95~1.15, Cr=0.15~0.30, Zn<0.20, Ti<0.10, the remainder is Al and inevitable impurities. The preparation process adopts precision heat treatment and rolling control technology to achieve the fine second phase and grain structure of aluminum from ingot to plate and strip. The finished aluminum alloy plate is 6~8mm thick, the grain size is ≤50μm, the second phase size is ≤10μm, the tensile strength is ≥100MPa, the yield strength is 35~90MPa, the elongation is ≥30%, and the rim surface prepared by spinning forming has no orange peel problem, which can better meet the technical requirements of aluminum for rims.

The invention provides a micro-channel heat exchange device based on high-entropy alloy connection and a preparation method and application of the micro-channel heat exchange device. According to the micro-channel heat exchange device, the connection quality of the joints of all layers of the micro-channel heat exchange device is improved, the tensile strength, the corrosion resistance and the hydrogen embrittlement resistance are improved, and the compactness, the corrosion resistance and the hydrogen embrittlement resistance of the fluid contact surface in the micro-channel heat exchange device are improved; the strength, the corrosion resistance and the hydrogen embrittlement resistance of the micro-channel heat exchange device are integrally improved, so that the micro-channel heat exchange device based on high-entropy alloy connection is suitable for places with high requirements for the space utilization rate and the reliability such as a hydrogen refueling station, and is particularly applied as a micro-channel heat exchanger of a hydrogen cooling system of the hydrogen refueling station.

The invention provides a multistage bubbling tower type gas-liquid contactor tritium extraction device and method, which is used for extracting tritium from a helium-cooled lithium-lead proliferation cladding of a superconducting magnetic confinement fusion reactor, and comprises a multistage series mechanism arranged at an outlet of the helium-cooled lithium-lead proliferation cladding and used for extracting tritium dissolved in eutectic lithium-lead alloy through carrier gas, the multi-stage series mechanism is formed by sequentially connecting multiple stages of GLC units in series, the height of each stage of GLC unit is decreased stage by stage, and the stage number of the multi-stage series mechanism is larger than or equal to thirteen. All the stages of GLC units are communicated through connecting pipes arranged at different heights, and all the stages of GLC units are arranged in the direction perpendicular to the horizontal plane, so that the problem that the liquid levels of all the GLC units are not uniform in the operation process is solved, and the overall operation stability and safety of the device are improved. Through verification, the tritium extraction efficiency of the thirteen-stage series connection mechanism can reach 90% or above, and the tritium self-sustaining operation efficiency requirement of the magnetic confinement fusion reactor can be met.

The invention discloses a hot forming process of a high-temperature bearing steel flange forge piece, which comprises the following steps of: taking a high-temperature bearing steel material as a raw material, performing heat treatment, performing extrusion forming in an extrusion die by adopting a press machine, and finally performing punching and annealing treatment to obtain a flange forge piece finished product. By the adoption of the hot forming process, according to the machining capacity of existing equipment, a high-temperature bearing steel material serves as a raw material, a die pressing product is formed through extrusion of a 250T press machine by adopting a closed extrusion forming process after homogenization treatment is conducted, then a stamping product is formed through stamping of a punching die, and finally annealing treatment is conducted. According to the technical scheme, the 8Cr4Mo4V high-temperature bearing steel can be subjected to hot pressing forming treatment, the production efficiency can be improved, the forging quality can be improved, the raw material utilization rate can be increased, and the production cost is greatly reduced, so that the machined product meets the technical requirements of flange forgings, a new machining idea is provided for machining of small flange forgings, and the method is suitable for application and popularization.

The invention discloses a high-prestress and large-ductility anchoring structure and a supporting method thereof.The high-prestress and large-ductility anchoring structure comprises a plurality of high-ductility energy absorption anchor cables, a plurality of high-strength and high-prestress anchor rods, a moving layer, an energy absorption layer and a strong anchoring layer, and the moving layer, the energy absorption layer and the strong anchoring layer are located above a roadway and sequentially distributed from bottom to top; and the high-elongation energy-absorbing anchor cable is mounted on the moving layer, the energy-absorbing layer and the strong anchoring layer. The technical problems that a dynamic pressure roadway anchor cable is frequently snapped, the yielding capacity of a supporting system is poor and the like are solved, and the reliability and safety of dynamic pressure roadway supporting are improved. The method has good application effect and economic benefit in engineering practice, and can meet the technical requirements of coal mine tunnel surrounding rock support.

The utility model discloses a multifunctional learning platform of an air source heat pump, comprising an air source heat pump host, a water tank and a user load loop, the top of the water tank is provided with an opening, the opening is provided with a hollow exhaust rod, the top of the hollow exhaust rod is provided with three communicated branch pipes, and the branch pipes are communicated with the air source heat pump host. The three branch pipes are respectively provided with a water tank pressure gauge, a safety valve and a water tank exhaust valve, and the water tank is provided with a left upper water receiving port, a left lower water receiving port, a right upper water receiving port and a right lower water receiving port. The multifunctional learning platform for the air source heat pump can demonstrate the operation of a ground heating system, the operation of a ground cooling system and the refrigeration and heating of a fan coil, can demonstrate the temperature regulation of a radiation refrigeration ground and the dehumidification of the fan coil in summer, and can simulate the operation of a primary system and a secondary system, so that students can intuitively see the operation parameters of the systems and master the working principle, and the learning efficiency is improved. And students can master the working principle of the system.

The application discloses an anti-freezing solution for a heat source tower, which is composed of organic salt, acrylic acid polymer, quaternary ammonium salt, benzotriazole, sodium molybdate, alcohol and water. The anti-freezing solution is obtained by mixing organic salt, acrylic acid polymer, quaternary ammonium salt, benzotriazole, sodium molybdate, alcohol and water, and is used in the anti-freezing process of the heat source tower system in the north. The organic salt is used as an anti-low-temperature agent, and the pyridine quaternary ammonium salt, benzotriazole and sodium molybdate mainly play a corrosion protection role. The anti-freezing solution has obvious synergistic effect among the components, and the freezing point of the obtained anti-freezing solution is lower and more stable. The anti-freezing solution has the characteristics of corrosion resistance to carbon steel, stainless steel and copper, so as to meet the technical requirements of the anti-freezing solution used in the heat source tower heat pump in the north. In addition, the obtained anti-freezing solution also has the characteristics of low cost and good environmental protection.

This invention relates to a method, system, equipment, and medium for technology transfer based on supply and demand matching. The method includes: acquiring basic data on scientific and technological achievements and user demand data, and constructing a feature set of scientific and technological achievements and a feature set of user demands; calculating the overall text feature similarity and key dimension feature similarity, and calculating the total similarity of key dimensions based on the key dimension feature similarity; calculating industry relevance based on industry attribute features; after obtaining technology maturity, industry transfer matching degree, and policy adaptability based on the basic data on scientific and technological achievements, calculating a rule correction coefficient; calculating the transfer matching degree after correcting the overall text feature similarity, total key dimension similarity, and industry relevance based on the rule correction coefficient, and generating a technology transfer recommendation strategy based on the transfer matching degree; the system, equipment, and medium are used to implement the above method. Compared with the prior art, this invention provides a method that can meet users' technology transfer needs.