775 results about "Vacuum pressure" patented technology

The invention discloses a low-vacuum circulating water heating dynamic load matching method based on AI regulation and control, and the method comprises the following steps: step S100, multi-source data real-time collection: building thermal environment parameters are synchronously collected through a temperature sensor array, a vacuum pressure transmitter, a flowmeter and an environment monitoring unit which are deployed in a distributed manner; according to the method, the control period is compressed to the minute level, compared with traditional PID control, the response speed is increased by several times, the indoor temperature can be controlled more accurately, and meanwhile the failure rate of equipment is reduced. According to the sudden weather coping mechanism, heat supply strengthening can be started 30 minutes ahead of time under extreme weather such as snowstorm weather, and the stability of the system is ensured. The method is characterized in that the prediction advantage of deep learning and the optimization capability of model prediction control are deeply combined, and the control problem of multivariable strong coupling of the low vacuum system is solved through a verification system of multi-source data fusion and virtual-real combination.

The invention discloses a vacuum pressure impregnation mold assembly process and a mold. The process comprises the following steps: mounting bottom hard molds on a plurality of independent supporting platforms, and then positioning superconducting coils; descending the platform in sections to lay a bottom soft mold and a flow guide component to ensure uniform gaps; the side edge soft mold, the side edge hard mold, the top flow guide net and the soft and hard mold are sequentially installed, and finally the soft mold is subjected to segmented welding and the hard mold is reinstalled. The mold is assembled through the method, and modular assembly is achieved by lifting the independent supporting platform in stages. According to the process, the load of a single platform is reduced through sectional assembly, precision deviation and equipment damage are avoided, and meanwhile, the use of a lifting appliance is reduced to protect the dimensional stability of the coil; a soft and hard mold layered assembly mode is adopted, the machining difficulty of a large-size mold is simplified, the manufacturing cost is reduced, and the size control precision is improved; the step-by-step assembly process effectively reduces the wrong assembly risk, avoids the problem of glue injection port blockage, and ensures the success rate of the vacuum pressure impregnation process.

The invention relates to the technical field of image data processing, and discloses an element mounting quality detection method for a chip mounter, which comprises the following steps of: synchronously acquiring images before and after element mounting and a vacuum pressure signal of a mounting suction nozzle, compensating vibration by utilizing an inherent substrate background area in the images, obtaining an optical position deviation through image difference and mass center calculation, and calculating the surface mounting quality of the element according to the optical position deviation. And finally, logically associating the deviation with the change characteristic of the pressure signal, and classifying the physical process of the mounting event. According to the invention, through the collaborative diagnosis of optical detection and physical signals, the physical reason of the mounting event can be clearly distinguished; the inherent limitation caused by vibration interference and unclear fault attribution during high-speed operation of a traditional detection mode is avoided, and the method has good adaptability to incoming material elements with different appearances.

The invention relates to a bionic Al / SiC composite material with a three-dimensional network multilevel structure and a preparation method of the bionic Al / SiC composite material, and belongs to the technical field of new material preparation. According to the method, through the collaborative process of freeze casting and organic foam impregnation, the problem that in the prior art, the multilevel aperture and the complex network structure are difficult to cooperatively regulate and control is solved. The preparation method comprises the following specific steps: preparing tert-butyl alcohol-based ceramic slurry, impregnating the slurry with polyurethane foam, performing freeze casting molding, removing a solvent through freeze drying, performing high-temperature sintering to form SiC ceramic with a three-dimensional reticular hierarchical pore structure, and finally preparing the Al / SiC composite material through a vacuum pressure infiltration process. Wherein a sintering aid is added into the slurry, so that the sintering temperature is obviously reduced; the specification (40-60 ppi) of polyurethane foam, the solid phase content (20-30 vol.%) of slurry, the freezing speed (0-90 DEG C) and the content (5-20 wt.%) of a sintering aid are regulated and controlled. And the cross-scale collaborative design of micron-scale directional holes and millimeter-scale mesh holes is realized. The Al / SiC composite material prepared by the invention has the advantages that the compressive strength, fracture toughness and other properties are obviously higher than those of the traditional single-aperture porous ceramic, and the Al / SiC composite material is suitable for the fields of manufacturing and energy absorption of precise instruments, electronic packaging and optical devices.

The invention relates to the technical field of vacuum coating, and particularly discloses a control system for a vacuum coating machine, which comprises a vacuum stable state analysis module, a gas flow matching analysis module, a coating environment control analysis module and a coating parameter control analysis module. Pressure intensity values of monitoring time points in all control time periods are accurately collected through a capacitive pressure sensor, the average value of the pressure intensity is calculated, the overall level of the vacuum pressure intensity in the time period can be visually reflected, and basic data are provided for judging whether the vacuum degree is in a proper range or not; an active monitoring and prevention mechanism is adopted for the vacuum coating machine, so that the continuity and the stability of coating production are guaranteed, a scientific basis is provided for preventive maintenance of the equipment, the service life of the equipment is prolonged, the probability of sudden failure of the equipment is reduced, the reliability, the high efficiency and the intelligent level of the whole vacuum coating production system are improved, and the production cost is reduced. And the competitiveness of enterprises in the field of coating processing is improved, the production cost is reduced, and the product quality is improved.

The invention relates to the technical field of reactor thermal hydraulics and safety, in particular to a long electric heating plate heat insulation structure and a heat transfer simulation experiment device with the long electric heating plate heat insulation structure. The long electric heating plate heat insulation structure comprises a heat insulation base, a heating plate and a cementing layer. The heat insulation base is configured to be a ceramic resin plate, and a sinking groove is formed in one plate face of the heat insulation base. The heated plate is arranged in the sinking groove so that the plate face of the heated plate can be flush with the plate face of the heat insulation base, and the surface, corresponding to the groove wall and the groove bottom of the sinking groove, of the heated plate is provided with a micropore aluminum oxide ceramic layer which is subjected to nanocrystallization treatment through an active coupling agent. And the cementing layer is arranged between the heated plate and the heat insulation base in a high-temperature vacuum pressure environment. According to the heat transfer simulation experiment device, it can be ensured that the heated plate has good single-side heat dissipation performance under the temperature working condition that the surface of the dispersion type fuel element is blistered, the experiment safety during operation of the heat transfer simulation experiment device can be ensured, and the accuracy of a measurement result in a simulation experiment can be ensured.

The invention discloses a wafer bonding method, which comprises the following steps of: 1, providing a first wafer and a second wafer, the surface of the first wafer being provided with a microstructure with a high aspect ratio; step 2, cleaning the first wafer and the second wafer; step 3, performing vacuum drying treatment on the first wafer and the second wafer, wherein the vacuum pressure is controlled to be 0.1-10 Torr in the vacuum drying treatment process; step 4, carrying out pre-bonding on the first wafer and the second wafer to form a bonding body; and step 5, carrying out annealing treatment on the bonding body. Aiming at the problem of residual water in the pre-cleaning process in the bonding process of the micro-structure wafer with a high aspect ratio, the wafer is placed in a controllable vacuum environment, phase change boiling of liquid water under the condition of no heat input is realized, and the problem of high-temperature heat damage caused by an existing heating and baking method is effectively avoided.

A method of processing a substrate comprising: positioning the substrate on an upper surface of a substrate holder in a first chamber, wherein the substrate holder comprises one or more vacuum channels disposed at the upper surface and one or more electrodes disposed within the substrate holder proximate to the upper surface; while the substrate holder is within the first chamber, clamping and flattening the substrate to the substrate holder by applying a vacuum to the one or more vacuum channels; while the substrate is clamped to the substrate holder via the one or more vacuum channels, applying a voltage to the one or more electrodes to further clamp the substrate to the substrate holder with an electrostatic force; pumping out the first chamber to a vacuum pressure while continuing to clamp the substrate to the substrate holder with electrostatic force; while the substrate is clamped to the substrate holder by electrostatic force, transferring the substrate holder from the first chamber into a second chamber under vacuum conditions; and while the substrate holder is within the second chamber, maintaining the electrostatic force clamping the substrate to the substrate holder, and processing the substrate in the second chamber at a vacuum pressure.

The invention relates to the technical field of superconducting magnet manufacturing and insulation impregnation process optimization, and discloses a vacuum pressure impregnation process optimization method, device, equipment, medium and product, and the method comprises the steps: inputting a target porosity and a target permeability into an insulation layer homogenization fluid domain model to obtain a macroscopic homogeneous model; according to the macroscopic homogeneous model, a first corresponding relation between multiple technological parameters and the impregnation performance parameters under the boundary condition is determined through simulation, and the multiple technological parameters comprise at least two of the temperature, the glue injection parameter, the vacuum pressure, the resin viscosity and the resin curing kinetic parameter; and according to the plurality of first corresponding relations, optimizing the plurality of process parameters by taking the shortest filling time, the highest uniformity and the lowest residual bubble rate as optimization objectives to obtain an optimal process parameter combination of the vacuum pressure impregnation process. According to the method, the multiple process parameters are optimized, the multi-parameter optimization database can be established, and the optimal process combination scheme is obtained.

The invention relates to the technical field of civil engineering, in particular to an energy-saving and environment-friendly vacuum preloading foundation treatment method which comprises the steps that a foundation soil body is divided into a plurality of foundation units, and a plurality of vacuum pumps are installed according to initial operation parameters; pre-suction is conducted on the foundation, the vacuum state of any foundation unit is judged, the suction power or the predicted demand power of the corresponding vacuum pump is adjusted, and the under-membrane vacuum pressure of the foundation unit is measured for the second time; the consolidation state of the foundation unit is judged according to the pore water pressure, and the fluctuation of pore water pressure change is detected to determine the foundation consolidation stage; drawing an intra-membrane vacuum pressure change curve in the main consolidation stage, judging the change trend of the curve, and determining the stability of the intra-membrane vacuum pressure and the working state of the sealing membrane according to the fluctuation of the curve; and in the secondary consolidation stage, the ground subsidence height is measured to predict whether the vacuum preloading reaches the load required by the design or not. By evaluating the consolidation degree and stability of the foundation soil body, the efficiency and accuracy of vacuum preloading treatment are improved.

The invention relates to the technical field of oxygen production, in particular to a single-tower VPSA (vacuum pressure swing adsorption) skid-mounted oxygen production device applying a magnetic suspension fan and a fan pump, which comprises a first module and a second module, the first module comprises a magnetic suspension fan, an air cooler, an adsorption tower, an oxygen buffer tank I and a magnetic suspension fan pump; according to the invention, four storage cylinders for storing molecular sieves are arranged in the adsorption tower, and structures such as a locking mechanism, an upper electric telescopic cylinder and a lower electric telescopic cylinder are arranged, so that each storage cylinder can be automatically and independently taken out and poured out of the molecular sieves; and then a new molecular sieve is poured into the device, and the storage cylinder is sealed and installed back by the control equipment, so that the molecular sieve can be automatically replaced, a maintainer does not need to use a tool to disassemble a plurality of bolts and use a tool to replace the bolts, and the maintenance efficiency of the device is greatly improved.

The present invention is directed to a 3D printed mold for creating three dimensional pulp products from a fibrous pulp slurry. Transverse filaments are integrated into an infill structure with an open-cell pattern. The transverse filaments form channels through the interior matrix of the mold. The open cell infill pattern and channels allow for the movement of vacuumed materials through the interior matrix of the 3D printed mold when vacuum pressure is applied. The product surface of the mold comprises an array of beads formed from the over-extrusion of melted material at the ends of the transverse filaments. The beaded array narrows the opening of the channels created by the transverse filaments, preventing the fibers from entering the matrix of the mold and clogging the flow of materials. This causes the fibers to aggregate on the product surface of the mold, forming the three dimensional pulp product.

The invention belongs to the field of ferrous metallurgy, and discloses an RH refining oxygen blowing decarburization method which comprises the following steps: dynamically adjusting the oxygen blowing flow and the oxygen blowing lance position according to the ratio of the content of carbon to the content of oxygen in RH incoming steel; the oxygen blowing amount is determined according to the initial values of the carbon and oxygen contents in the RH entering steel and the target values of the carbon and oxygen contents after decarburization is finished; a gradient lifting gas flow system is adopted in the RH decarburization process, the oxygen blowing opportunity of RH decarburization and the vacuum pressure in the oxygen blowing process are controlled, and when RH decarburization is finished, molten steel is controlled to be low in oxygen activity. According to different RH entering molten steel components, the oxygen blowing flow and the oxygen blowing lance position are dynamically adjusted, the gradient gas flow increasing system is adopted, the RH decarburization oxygen blowing opportunity, the oxygen blowing process vacuum pressure and decarburization ending molten steel oxygen activity control are combined, the oxygen utilization rate can be effectively increased, the decarburization period is shortened, and the decarburization efficiency is improved. The problem of molten steel recarburization caused by molten steel splashing due to too violent carbon-oxygen reaction is solved, RH efficient decarburization is achieved, the steel ladle top slag oxidability is reduced, and the molten steel cleanliness is improved.

A method of processing a substrate is disclosed that comprises: transferring the substrate into a processing chamber and positioning the substrate on an upper surface of a substrate holder in the processing chamber, wherein the substrate holder comprises one or more vacuum channels disposed at the upper surface and one or more electrodes disposed within the substrate holder proximate to the upper surface; while the substrate holder is within the processing chamber, clamping and flattening the substrate to the substrate holder by applying a vacuum to the one or more vacuum channels; while the substrate is clamped to the substrate holder via the one or more vacuum channels, applying a voltage to the one or more electrodes to further clamp the substrate to the substrate holder with an electrostatic force; pumping out the processing chamber to a vacuum pressure while continuing to clamp the substrate to the substrate with the electrostatic force; and while the substrate is clamped to the substrate holder by the electrostatic force, processing the substrate in the processing chamber under vacuum conditions.

The invention relates to a multi-airflow alternating temperature calcining device for ultra-long nitride single crystal nanofibers. The multi-airflow alternating temperature calcining device comprises a reaction furnace; the mechanical vacuum pressure gauge and the exhaust port are arranged at the top of the reaction furnace; the reaction furnace chamber is arranged in the reaction furnace; the multi-reaction-zone graphite furnace body is arranged in the reaction furnace chamber and comprises a first low-temperature zone, a second high-temperature zone and a third low-temperature zone which are sequentially arranged from bottom to top and are not in contact with one another; the electromagnetic heating controller is arranged on the periphery of the multi-reaction-area graphite furnace body; the graphite boat is movably arranged in the multi-reaction-area graphite furnace body; the movable alumina crucible is arranged in the graphite boat; the graphite columns are arranged at the top and the bottom of the multi-reaction-zone graphite furnace body; the hydraulic cylinder is connected with the graphite column; and a control assembly. Compared with the prior art, the method has the advantages that the nitridation reaction process can be accurately controlled, the fiber quality and the crystal integrity can be improved, and independent and accurate temperature control can be realized.

The invention provides a vacuum pressure system, a parameter identification method and a parameter identification modeling method, which are applied to the technical field of semiconductor manufacturing, a mathematical model for describing the change of the pressure in a chamber along with time is constructed by applying the law of conservation of mass and an ideal gas state equation, the change of the pressure in the chamber can be accurately predicted, and the accuracy of the parameter identification is improved. And key system parameters can be determined in real time through a parameter identification process, so that the precision and the response speed of pressure control are remarkably improved, meanwhile, the adaptability and the stability of the system are enhanced, the thin film deposition process can be optimized, the quality and the uniformity of products are improved, and the production efficiency is improved.

The invention discloses a method for processing a pressure-resistant shell of an unmanned underwater vehicle, which relates to the technical field of underwater vehicles, and is technically characterized by comprising the following steps of: firstly, respectively forging a pipe material or a bar material, a cake material and a plate material by adopting titanium alloy, customizing raw materials, machining according to preset parameters, drilling, cleaning, and matching with radiographic inspection to complete processing of a shell, an end socket and a hoop; and the seal head also needs to be marked by laser. And in the assembling stage, an O-shaped sealing ring is arranged at the connecting part of the shell and the end socket for sealing, and a bulkhead of the cabin penetrating piece is fixed and assembled by using a hoop. Then, the vacuum degree change is monitored in a vacuum pressure maintaining mode to conduct air tightness detection, after qualification, a hydrostatic pressure test is adopted, step type pressure increasing is conducted according to preset pressure, the pressure is maintained to the specified time length, whether deformation and leakage occur or not is detected, finally, pressure-resistant shell machining is completed, the structural strength and sealing performance of the pressure-resistant shell are guaranteed, and the underwater use requirement is met.

The invention discloses an organic-inorganic mutually-embedded space structure AAO / PVDF composite coating and a preparation method thereof, based on a hard template-soft modification technology, a hard porous anodic oxidation aluminum oxide layer is obtained on the surface of an aluminum alloy; injecting a polyvinylidene fluoride (PVDF) solution into the nano pore channels of the anodic aluminum oxide layer through a vacuum pressure impregnation process and a solution casting method, curing to form a nano column array structure, and performing high-pressure polarization treatment on PVDF nano columns by adopting a corona polarization mode; and the antibacterial, antifouling and anticorrosive AAO / PVDF composite coating based on environment excitation charge response of the piezoelectric effect can be prepared. The AAO / PVDF coating disclosed by the invention has excellent antibacterial property, strong interface bonding and stable piezoelectric property, and PVDF effectively seals nano pore channels of AAO, so that the anti-corrosion property of the aluminum alloy is remarkably improved, and the anti-corrosion and anti-fouling process has the characteristics of being long-acting, environment-friendly and efficient.

According to examples, a non-transitory computer-readable medium may have stored thereon instructions that may cause a processor to obtain a digital model of a transfer screen to be 3D fabricated. The processor may also determine placements of pores in the digital model, in which the transfer screen is to be mounted on a transfer mold via an attachment mechanism and to engage a surface of a wet part formed on a corresponding forming screen. The forming screen may have a first shape and the transfer screen may have a second shape that is complementary to the first shape, and the locations of the pores may be determined to allow liquid to be suctioned from the wet part when a vacuum pressure is applied to the transfer mold. The processor may further modify the digital model of the transfer screen to include the pores at the determined placements.

The invention relates to injection molding product forming, in particular to injection molding product rapid forming equipment and method.The injection molding product rapid forming equipment comprises a sliding support, a forming mechanism is slidably connected to the sliding support, a plurality of injection molding mechanisms are fixedly connected to the sliding support, and the forming mechanism can sequentially pass through the injection molding mechanisms and is connected with the injection molding mechanisms; the method comprises the steps that firstly, a forming mechanism is driven to move, so that the forming mechanism sequentially moves to the positions of a plurality of injection molding mechanisms and is connected with the injection molding mechanisms; 2, after the forming mechanism is connected with each injection molding mechanism, the forming mechanism is vacuumized; thirdly, the injection molding mechanism conducts rapid injection molding on the molding mechanism under the action of vacuum pressure; and injection molding raw materials can be quickly pumped into the mold for molding in a vacuum manner.

A method of processing a substrate in a processing chamber that includes a primary volume and an auxiliary volume that can be environmentally sealed from the primary volume, the method including: transferring the substrate into the primary volume of the processing chamber and onto an upper surface of a substrate holder while the primary volume is at a vacuum pressure, wherein the substrate holder comprises one or more vacuum channels disposed at the upper surface and one or more electrodes disposed within the substrate holder proximate to the upper surface; moving the substrate holder within the processing chamber such that the substrate is moved from the primary volume to the auxiliary volume; sealing the auxiliary volume from the primary volume and increasing the pressure within the auxiliary volume; while the substrate is within the auxiliary volume, clamping and flattening the substrate to the substrate holder by applying a vacuum to the one or more vacuum channels; while the substrate is within the auxiliary volume and clamped to the substrate holder via the one or more vacuum channels, applying a voltage to the one or more electrodes to further clamp the substrate to the substrate holder with an electrostatic force; and while the substrate is clamped to the substrate holder by the electrostatic force, moving the substrate from the auxiliary volume back into the primary volume and processing the substrate in the primary volume at a vacuum pressure.

The invention provides a multi-melting-machine collaborative vacuumizing control system and control method, and belongs to the technical field of quartz crucible manufacturing, the multi-melting-machine collaborative vacuumizing control system comprises a main controller, a main vacuumizing assembly, a plurality of branch vacuumizing assemblies and a plurality of melting machines; the main vacuumizing assembly is connected with the multiple branch vacuumizing assemblies through the vacuum main pipeline, and the multiple branch vacuumizing assemblies are connected with the multiple melting machines in a one-to-one correspondence mode through the melting machine connecting vacuum pipes. The main vacuumizing assembly comprises a vacuum pump, a first pneumatic valve, a first proportional electromagnetic valve, a vacuum tank and a vacuum main valve which are connected in sequence; the branch vacuumizing assembly comprises a vacuum proportion regulating valve, a buffer tank and a vacuumizing valve which are connected in sequence; a vacuum tank is arranged, and the vacuum pressure in the vacuum tank is kept constant by controlling a first pneumatic valve and a first proportional electromagnetic valve; the buffer tanks are arranged on the branches, and the vacuum pressure in the buffer tanks is controlled by the vacuum proportioning valves to be kept constant, so that a stable vacuum system is formed in the melting process of the quartz crucible.

The invention discloses a screw vacuum pump self-adaptive energy-saving operation system based on multi-source information fusion, and relates to the field of screw vacuum pump operation systems, and the screw vacuum pump self-adaptive energy-saving operation system comprises a multi-source sensing unit, an edge intelligent processing unit, a self-adaptive decision engine, an actuator array and a cloud edge collaboration platform; according to the system, the multi-source sensing unit captures multi-dimensional information such as vacuum pressure, current harmonics, a temperature field and a mechanical state in real time, and by combining efficient feature extraction of the edge intelligent processing unit, the load recognition precision and the response speed are greatly improved; the self-adaptive decision engine accurately tracks the lowest energy consumption rotating speed point based on a dynamically updated Gaussian process regression model, and redundant energy consumption caused by feedback lag and load misjudgment in traditional control is thoroughly eliminated.

The invention discloses a self-adaptive vacuum filling and sealing device and method, and mainly solves the problems that the existing vacuum filling and sealing technology is difficult to realize accurate adaptation and optimal adjustment of multiple types of filling and sealing adhesives, and the filling and sealing consistency and the product reliability under complex working conditions are influenced. Comprising a vacuum box, a vacuum pump, a vacuum pressure digital display meter, a control panel and an air inlet valve, wherein a liquid flow meter is arranged at a glue injection and pouring outlet in the vacuum box, and instantaneous flow data of pouring sealant is detected and fed back in real time; a refrigerating device is arranged on the side wall to inhibit local temperature rise of the two-component pouring sealant caused by heat release of a chemical reaction; a heating device is arranged at the upper part to compensate the adverse effect of environment temperature reduction on the fluidity of the pouring sealant; and meanwhile, a fusion algorithm for self-adaptive adjustment of multiple types of pouring sealants is deployed in the microprocessor, so that self-adaptive temperature balance and regulation in the pouring process are realized. According to the invention, the automation degree and the response sensitivity of the potting process can be obviously improved, and the stability and the reliability of the potting process are improved.

The invention discloses magnetic suspension type vacuum pressure swing adsorption oxygen production equipment which comprises a magnetic suspension blower, a heat exchanger, a magnetic suspension vacuum pump, a recovery storage tank, a second adsorption tower, an oxygen buffer tank, an oxygen supercharger, a switching mechanism and an instrument mechanism, the switching mechanism comprises a pneumatic switch valve group, a manual switch valve group and a pneumatic control valve group, and the instrument mechanism comprises a pressure sensor group, a temperature sensor group, an oxygen purity analyzer and an oxygen flow meter. According to the invention, the frequency of the magnetic suspension blower and the magnetic suspension vacuum pump can be adjusted according to the air load to reduce the energy consumption of the system, the brake energy of the magnetic suspension blower and the magnetic suspension vacuum pump is recovered to improve the energy utilization efficiency and the system performance, and the pneumatic control valve group is adopted to accurately control the regeneration flow and the regeneration time. The molecular sieve utilization efficiency is improved, the system energy consumption is reduced again, the energy consumption can be greatly reduced, and the yield is improved.

This invention relates to the field of carbon dioxide capture technology, and more particularly to a modular vacuum pressure swing adsorption (FPSO) carbon dioxide capture method. The method provides a capture device comprising a pretreatment unit, an adsorption unit, a storage unit, and a control unit. A control model is set in the control unit, which outputs control rate, optimal adsorption parameters, optimal desorption parameters, and equalization cycle parameters, and feeds them back to the actuators of the control unit. The actuators then control the operation of the pretreatment unit, the adsorption unit, and the storage unit. The pretreatment unit cools, compresses, and dries the flue gas. The adsorption unit adsorbs and desorbs CO2 from the flue gas. The desorbed CO2 is stored in the storage unit. This invention improves the efficiency and safety of carbon dioxide capture.

To provide an efficient pre-compression processing method of soft ground using combination of gas lift and vacuum, and a method for carrying out a construction work based on the same.SOLUTION: Gas with certain pressure and flow speed is introduced from a bottom of a drainage plate, so that gas with positive pressure flows upwards along a plate core of the drainage plate, and water in the plate core is carried upwards out of the drainage plate in the flowing process of the gas. After the water is emptied, a vacuum degree is only transmitted in a gas environment and can be transmitted to the bottom of the plate without attenuation. When a vacuum degree is stabilized between -80 kPa and -90 kPa, an air compressor is intermittently started to inject air, and the stored water in the drainage plate is emptied by using the gas lift principle, so that purposes of accelerating drainage and transferring the vacuum pressure to a deep part without attenuation are achieved.SELECTED DRAWING: Figure 8

The invention relates to the technical field of blade packaging suction tool control, and provides a milling cutter blade packaging suction tool control method and system.The method comprises the steps that the vacuum pressure establishing speed in a suction cup, fluctuation after the vacuum pressure is stabilized and response of the vacuum pressure to tentative movement of a mechanical arm are obtained and integrated, and suction state parameters are obtained; according to the adsorption state parameters, whether the adsorption state is in a critical unstable state or not is judged, and an adsorption state judgment result is obtained; starting a dynamic vacuum compensation mechanism when the adsorption state judgment result shows that the adsorption device is in a critical unstable state; through a dynamic vacuum compensation mechanism, in the blade carrying process of the mechanical arm, the adsorption force is enhanced by dynamically adjusting the power of a vacuum generator and / or applying auxiliary airflow. The milling cutter blade packaging device has the effect of improving the stability of milling cutter blade packaging operation.

The invention relates to the technical field of carbon dioxide capture, in particular to a modular FPSO (vacuum pressure swing adsorption) carbon dioxide capture method, and provides a capture device which comprises a pretreatment unit, an adsorption unit, a storage unit and a control unit. Setting a control model in a control unit, outputting a control rate, an optimal adsorption parameter, an optimal analysis parameter and a voltage-sharing period parameter through the control model, and feeding back the control rate, the optimal adsorption parameter, the optimal analysis parameter and the voltage-sharing period parameter to an actuator of the control unit, so that the actuator controls a preprocessing unit, an adsorption unit and a storage unit to operate; flue gas is cooled, compressed and dried through the pretreatment unit, CO2 in the flue gas is adsorbed and desorbed through the adsorption unit, and CO2 desorbed by the adsorption unit is stored in the storage and collection unit. According to the invention, the capture efficiency and capture safety of carbon dioxide are improved.

The invention discloses a reusable superconducting coil vacuum pressure impregnation tool and method, and relates to the technical field of superconducting coil preparation tools. Comprising a dipping tool cylinder, an upper cover plate, a lower cover plate, a coil outer support, a superconducting coil and a coil inner support, the two ends of the dipping tool barrel are detachably connected with the upper cover plate and the lower cover plate respectively; a vacuum joint is arranged on the upper cover plate; a glue injection opening is formed in the side wall of the dipping tool barrel; the coil outer support is arranged on the inner side of the superconducting coil, the coil inner support is arranged on the outer side of the superconducting coil, the coil outer support, the superconducting coil and the coil inner support are arranged on the lower cover plate, and the space between the coil outer support and the inner wall of the dipping tool barrel is filled with epoxy blocks. The device can adapt to superconducting coils of different sizes only by increasing or decreasing the volume of the filling epoxy block, the dipping tool does not need to be destructively disassembled when the coils are taken out, and it is ensured that the temperature is uniform when the whole tool is heated and cured through heating oil in an interlayer of the dipping tool.