51351 results about "Process engineering" patented technology

The invention discloses a disperse relaxation factor tidal current model based minimum electricity generating cost incremental quantity obtaining method. When a minimum electricity generating cost incremental quantity model only containing one balance node tidal current model is solved, the total demand unit change of a system is fixed on a balance node, and an obtained lambda, namely electricity generating cost minimum incremental quantity cannot reflect actual operation of the system in most cases during total demand unit change of a system. The disperse relaxation factor tidal current model based minimum electricity generating cost incremental quantity obtaining method adopts solves the provided model by means of an original antithesis interior point method, and the lambda of the system is controllable according to selected disperse relaxing factors.

A temperature control device includes a temperature detector, a difference operation unit, a controller, a saturation processing circuit unit, a rewritable storage unit, and a conversion unit. The difference operation unit operates a digital value corresponding to a difference value between a detected temperature value and a target temperature. The controller calculates a manipulated variable using the digital value operated by the difference operation unit. The saturation processing circuit unit includes a digital circuit to limit an output value of the controller to a pre-set upper limit value. The rewritable storage unit stores the upper limit value read from a storage area of the rewritable storage unit and input into the saturation processing circuit unit. The conversion unit converts the output value of the saturation processing circuit unit into an analog signal to output the converted value as a control command value to the heater.

The invention relates to a gas nano purifier. The gas nano purifier comprises a mounting seat, the gas storage bin is installed on the installation base and used for storing clean gas, the side wall of the upper portion of the gas storage bin extends upwards to form an installation plate, and a gas path through hole is formed in the middle of the installation plate; the gas-water separator is mounted on the mounting plate and is used for carrying out primary purification on to-be-cleaned gas; the adsorption tower is mounted on the mounting plate and is used for carrying out secondary purification on the to-be-cleaned gas; gas to be cleaned sequentially flows through the gas-water separator and the adsorption tower and then enters the gas storage bin; the adsorption tower is communicated with the gas storage bin through an exhaust pipe; and the exhaust pipe penetrates through the gas path through hole. Through the arrangement, the installation operation is greatly simplified, and the integrity and the space utilization rate of equipment are improved.

The present application relates to the technical field of air conditioners, and particularly relates to an air conditioner control method and device, a multi-connected air conditioner and a storage medium, the present application determines the target heat recovery mode of the multi-connected air conditioner by judging the water tank temperature of the hot water tank, the heating energy demand and the total energy demand of each air conditioner indoor unit obtained when the multi-connected air conditioner simultaneously exists refrigeration and heating water demand, and then adjusts the communication state of the reversing device and the throttling element according to the target heat recovery mode, so as to achieve the purpose of simultaneously operating refrigeration and heating water by one heat pump system, and heat the water tank by the waste heat of air conditioner refrigeration, thereby avoiding the technical problem that the heating and heating water in the prior art multi-connected air conditioner are not simultaneously performed, and improving the use experience of the user.

The invention relates to a gas nanometer purification method and a purifier, and the method comprises the following steps: gas to be cleaned enters a gas-water separator for gas-liquid separation and coarse filtration, liquid impurities and large-particle solid impurities in the gas are removed, and preliminarily purified gas is obtained; on the basis of switching logic, the preliminarily purified gas is alternately conveyed to two adsorption unit groups for deep adsorption purification, adsorbent dehydration treatment and fine dust interception treatment are sequentially completed in the adsorption units, and clean gas is obtained; one part of the clean gas is conveyed to the gas storage bin to be stored, and the other part of the clean gas is conveyed to the regeneration gas bin to be pre-stored for regeneration cycle of the subsequent adsorption unit. Through the integrated method design of continuous adsorption working conditions, online regeneration cycle and automatic pressure equalizing switching, seamless connection of adsorption and regeneration and uninterrupted gas supply in the whole process are achieved, gas supply interruption and severe gas pressure fluctuation are effectively avoided, and the strict use requirements of precise manufacturing, automatic production lines and continuous production scenes for stable gas sources can be met.

The application discloses a refrigeration system control method and device based on dryness physical benchmark. The method comprises the following steps: establishing a benchmark quantity of refrigerant, wherein the benchmark quantity Φ is only related to the physical property of the refrigerant and is irrelevant to system specific parameters such as pipeline length, charging quantity and heat exchanger area; acquiring the dryness of the condenser outlet in real time x ; taking the dryness x tending to 0 as a control target, and adjusting the total flow of the system so that the system approaches its inherent energy efficiency characteristic curve. The application also provides a float type device and an injection type device for realizing the method. The application promotes the dryness from a traditional measured quantity to an active physical benchmark, so that the refrigeration system automatically approaches the theoretical optimal state under various actual working conditions, and the energy efficiency is significantly improved, with an average COP improvement of 11.6% and a worst case improvement of 16.2%.

The invention relates to an installation for liquefying hydrogen, comprising a circuit for hydrogen to be cooled, a set of heat exchanger(s) in heat exchange with the circuit, a cooling system comprising a refrigerator with a cycle of refrigeration of a first cycle gas comprising helium and / or hydrogen, the circuit comprising at least one catalysis section so as to ensure conversion of the ortho-hydrogen into para-hydrogen, the circuit further comprising a first bypass portion bypassing at least one catalysis section, the downstream end of the circuit comprising two parallel branches that are not combined and are supplied respectively with the hydrogen that has passed through the first bypass portion and hydrogen that has passed through the catalysis section so as to provide two distinct hydrogen streams that have different relative proportions of ortho-hydrogen and para-hydrogen.

This invention provides a flexible manufacturing system and a flexible manufacturing method thereof. The flexible manufacturing system includes an initial feeding platform, a first production line, a second production line, a final discharge platform, and a conveying machine. The first production line includes multiple first workstations and a first conveying mechanism, wherein the initial feeding platform feeds a workpiece onto the first production line, and the first conveying mechanism conveys the workpiece. The second production line includes multiple second workstations and a second conveying mechanism, which conveys the workpiece. The workpiece is moved from the second production line to the final discharge platform for discharge. The conveying machine is adapted to pick up the workpiece from the first or second production line and transport it.

The energy recycling heat control device provided by the embodiment of the present application comprises a liquid collecting chamber, an engine assembly and a spring, the engine assembly and the spring are arranged between the liquid collecting chamber and an injector, the pushing action of a piston by the target gas filling parameters in a sealed space of the engine assembly is combined with the spring mechanical parameters of the spring to control the distance between a heat plate and the outer wall of the liquid collecting chamber, so that the heat energy is recycled and reused, which is beneficial to improve the rapid response speed of the engine, reduce the power consumption, and thus reduce the risk of explosion after shutdown.

This allows for effective utilization of the motor's performance. [Solution] A control device for an injection molding machine according to one embodiment includes a control unit that obtains the current value flowing to a motor provided in the injection molding machine from a detection unit, calculates an integrated value by accumulating the current value detected by the motor for a predetermined time while the injection molding machine is continuously molding a molded product, and stops the molding by the injection molding machine based on the integrated value and a predetermined value, and the control unit further changes the predetermined value while the injection molding machine is continuously molding a molded product.

An integrated cleaning and liquid supply device and online cleaning method for polyurethane polishing pads are disclosed. The device includes a base, a rotating seat, a swing arm, an independent liquid supply pipeline system and cleaning pipeline, a high-pressure nozzle array, and a positioning sensor assembly. During the polishing stage, polishing liquid is dripped through the liquid supply outlet. During the cleaning stage, the swing arm moves centripetally to a preset position aligned with the center of the polishing pad. The positioning sensor triggers a high-pressure pump, causing pure water to be sprayed as an atomized jet along the diameter of the pad surface through the high-pressure nozzle array. Simultaneously, the polishing pad rotates at a low speed, utilizing the synergistic effect of centrifugal force and high-pressure water flow to thoroughly remove residual contaminants within the micropores of the polyurethane. This invention integrates liquid supply and deep cleaning functions into the same motion mechanism, eliminating the need for machine shutdown or manual intervention. It offers advantages such as non-contact, non-destructive, thorough cleaning, and high automation, extending the life of the polishing pad and improving the stability of the CMP process.

The invention relates to the technical field of waste plastic treatment, in particular to a waste plastic grading carbonization device and a waste plastic treatment method. The waste plastic grading carbonization device comprises a feeding hopper, a crushing device, a grinding device, a screening device, a catalyst self-adaptive proportioning device, a first spiral discharging machine, a first-stage carbonization chamber, a second-stage carbonization chamber, an activation chamber, a second spiral discharging machine, a solid product collecting device, a liquefaction device, a liquefied product collecting device, a cooling water circulating device and a third spiral discharging machine, a material returning bin and a tail gas treatment device. According to the invention, through the collaborative innovation of'grading carbonization 'and'catalyst self-adaptive proportioning device', the problems of incomplete and non-uniform carbonization of the waste plastics, inadequate utilization of gas products and the like in the pyrolysis process of the waste plastics are solved, and an industrial feasible path is provided for chemical recovery of the waste plastics; the device is reasonable in overall structural design and high in treatment energy efficiency, and continuous, sufficient and efficient pyrolysis and high-value conversion of the waste plastics are achieved.

To provide a printing apparatus and a control method for the printing apparatus that can reduce the time required to form an adhesive layer with a simple structure. [Solution] A printing apparatus comprising an endless conveyor belt for transporting a recording medium, a drive unit for circulating rotation of the conveyor belt, a heating unit, a printing unit for printing on the recording medium, and a control unit, wherein the control unit can select between a first mode in which, when the conveyor belt is not holding the recording medium and is circulating rotation, the heating unit heats the aqueous adhesive applied to the conveyor belt to form an adhesive layer on the conveyor belt, and a second mode in which, when the conveyor belt is circulating rotation, the heating unit heats the adhesive layer and the printing unit prints on the recording medium held by the conveyor belt.

This invention provides a fuel cell system that can estimate the nitrogen concentration of gases emitted from the fuel cell at low cost. [Solution] The fuel cell system 1 comprises a fuel cell 2 that generates electricity through an electrochemical reaction between hydrogen gas and oxygen gas and discharges hydrogen off gas containing unreacted hydrogen gas together with nitrogen gas and moisture; a hydrogen supply channel 40 that supplies hydrogen gas from a hydrogen tank 41 to the fuel cell 2; a recirculation channel 50 that recirculates the hydrogen off gas back into the hydrogen supply channel 40; a gas-liquid separator 51 that separates moisture from the hydrogen off gas to obtain dehumidified hydrogen gas and stores the separated moisture; an exhaust valve 54 that exhausts the dehumidified hydrogen gas from the recirculation channel 50; a pressure sensor 52 that detects the pressure in the recirculation channel 50; and a control device 6 that controls the exhaust valve 54. The control device 6 estimates the concentration of nitrogen gas contained in the dehumidified hydrogen gas based on the value detected by the pressure sensor 52, and controls the exhaust valve 54 to an open state when the concentration of nitrogen gas exceeds a predetermined value.

An adaptive air intake control system and method for cooling towers, coupled with airflow diversion for energy saving, belongs to the field of adaptive control system technology. The system includes an information acquisition unit, an execution unit, and an adaptive control unit. The information acquisition unit collects environmental wind parameters and key operating parameters in real time. The execution unit includes multiple independent fan blade groups with circumferential partitioning and vertical layering for precise execution of commands. The adaptive control unit executes operational decisions, selecting the dominant operating mode from airflow diversion energy saving, anti-freezing energy saving, and anti-drip energy saving modes; it then identifies and outputs wind condition characteristics and thermal anomaly indicators through key parameter status identification, and generates control commands based on the adaptive control strategy and command generation. The system forms a closed loop, capable of adaptively adjusting the identification model and control strategy based on feedback. A corresponding control method is also disclosed, enabling intelligent and precise control of air intake in cooling towers under complex environments, improving cooling efficiency and energy saving while ensuring anti-freezing safety.

This invention relates to the field of flue gas treatment technology. It discloses an integrated flue gas desulfurization, denitrification, and decarbonization method based on a hypergravity reactor. S1: Flue gas is pressurized by a booster fan and then enters a concentration and cooling tower for heat exchange and cooling. S31: If the flue gas detection device fails to meet the requirements, the flue gas enters the secondary thin-plate hypergravity treatment device connected in series via a series return gas branch for secondary treatment. S32: If the flue gas detection device meets the requirements, the flue gas enters the main flue gas emission path via the series return gas branch and the flue gas emission branch. The main flue gas emission path transmits the flue gas to the hypergravity decarbonization reactor. The secondary thin-plate hypergravity treatment device is ultra-thin and divided into multiple vertically distributed sections, ensuring that the grading is performed in the same or nearly identical space, reducing the height of the secondary thin-plate hypergravity treatment device and minimizing energy consumption during initial operation.

The disclosure describes processes which include cooling a natural gas product stream to a cryogenic liquid storage temperature by way of refrigeration streams which include a primary refrigeration stream, a secondary refrigeration stream, and a tertiary refrigeration stream in a refrigeration system. After leaving the refrigeration system, the pressure of each refrigeration stream is increased, and upon reaching a sufficient pressure, the refrigeration streams are recycled to flow back into the refrigeration system as a recycle stream. The disclosure further describes systems capable of performing the processes. The processes and systems can include one or more sensors and one or more controls capable of adjusting a flow rate, flow volume, and / or flow ratio among one or more gas streams to maximize cooling efficiency based on monitoring from the one or more sensors. Mobile natural gas liquefaction systems are also described.

A process for process for generating power in an ammonia-fueled gas turbine power plant includes flowing an ammonia feed stream to an ammonia cracker reactor in geographical proximity to an ammonia-fueled gas turbine power plant to crack ammonia feed stream under cracking conditions, thereby producing a product effluent comprising ammonia and hydrogen, flowing the product effluent comprising ammonia and hydrogen to an ammonia-fueled gas turbine of an ammonia-fueled gas turbine power plant, and combusting the product effluent comprising ammonia and hydrogen to drive the ammonia-fueled gas turbine. An exhaust gas stream generated from the ammonia-fueled gas turbine is recycled back to supply heat to the ammonia cracker reactor.

A thermal storage system that includes one or more thermal storage tanks having a tank body that defines a tank cavity configured to hold a tank thermal storage medium; a heat exchanger assembly disposed in the tank cavity configured to run a flow of working thermal storage medium through the one or more thermal storage tanks so that heat exchange occurs between the flow of working thermal storage medium and the tank thermal storage medium; one or more cables that extend to one or more rooms of the building; and one or more heat exchange elements disposed within the one or more rooms configured to receive a flow of the working thermal storage medium from the one or more cables so that heat exchange occurs between the flow of the working thermal storage medium and an environment of the one or more rooms of the building.

In an image forming apparatus, a consumable includes a consumable memory. The consumable is attached to a main casing. The main casing has an opening through which the consumable is attachable. A cover is configured to open and close the opening. The controller is configured to perform: a reception process; a determination process; an initialization process; and a reading process. The reception process receives an instruction to initialize consumable memory information stored in the consumable memory. The determination process determines at least whether the cover is in an open state in accordance with the received instruction. When determining at least that the cover is in the open state, the controller performs the initialization process. The initialization process initializes the consumable memory information. The reading process reads the consumable memory information from the consumable memory while the cover is in a closed state.

An indoor horticulture system with modular units arranged in rows within a grow room separated from an air control room by a divider wall. Each row of modular units has air intake and air outlet ducting. The air intake ducting is configured to transmit air from the air control room to the modular units via an air supply fan within each modular unit. The air exhaust ducting is configured to transmit air from the modular units via an air exhaust fan within each modular unit through the air control room and to exhaust air outside of the building. Each modular unit and the air control room has an air temperature sensor. Power dampers in the air control room are controlled by input from the air control room sensor. The speed of the air supply and exhaust fans are controlled by input from the sensors in the modular units.

A method for detecting thermal runaway of a battery pack including a battery module in a master battery management system, the method comprising detecting a communication error with a slave battery management system that detects information on the battery module, if the communication error with the slave battery management system is detected, obtaining temperature of a master board from a temperature sensor located on the master board in which the master battery management system is installed, and detecting thermal runaway of the battery pack using the temperature of the master board.

The system accurately manages the remaining driving range, which changes as the energy storage device heats up during driving prior to charging. [Solution] The controller 6 includes a first calculation unit 6b that calculates a first drivable distance using the remaining power obtained by subtracting the amount of heating power required to achieve a target temperature of the energy storage device when there is a request to heat the energy storage device with a heater from the remaining charge of the energy storage device; a second calculation unit 6c that calculates a second drivable distance using the remaining charge of the energy storage device when there is a request to heat the energy storage device with a heater, while outputting power to achieve a target temperature of the energy storage device; and an output unit 6e that outputs the larger of the first drivable distance and the second drivable distance to display on a display.

The present invention provides a user management device that allows for more appropriate information provision to users compared to managing users according to their roles. [Solution] The management device is characterized by comprising a management means for managing users by a first management method for managing the level of users who use the molding device according to their roles, and a second management method for managing the level of users according to their skill level in the work.

The application relates to the field of power supplies, and discloses an uninterruptible power supply, which comprises a first power board, a liquid cooling plate, a second power board, a first power device group arranged on the first power board, and a second power device group arranged on the second power board; the liquid cooling plate is arranged between the first power board and the second power board and is used for heat dissipation of the first power device group and the second power device group; the liquid cooling plate comprises an inlet, an outlet and a cooling flow channel communicated between the inlet and the outlet, and the cooling flow channel is used for containing cooling liquid; the first power device group and / or the second power device group comprises temperature-sensitive components and a plurality of power components; along the flow direction of the cooling liquid in the cooling flow channel, the plurality of power components are located in front of the temperature-sensitive components. The application gives priority to heat dissipation of the temperature-sensitive components with high temperature sensitivity to ensure the service life of the entire uninterruptible power supply, and then heat dissipation is performed on other power components, so that liquid cooling heat dissipation of all the power components is considered.

This increases the possibility of improving workers' work efficiency and transferring know-how from the work site to the next level. [Solution] A molding support device comprising: an objective information acquisition unit that acquires objective information indicating the purpose of work on a molding apparatus; an operation information acquisition unit that acquires operation information indicating the operator's operations during the work; and a writing unit that writes the operation information acquired by the operation information acquisition unit to a storage unit in association with the objective information acquired by the objective information acquisition unit.

The utility model relates to vertical mill auxiliary technical field, concretely is a cement vertical mill steady flow bin device, the cement vertical mill right side is provided with the steady flow bin for raw material transfer, and steady flow bin support assembly is in the inside support frame, steady flow bin upper portion is provided with the receiving hopper for receiving the conveying device and conveying raw material, and receiving hopper supports in the inside steady flow bin, steady flow bin and cement vertical mill are supported assembly between through support frame and are used for lifting raw material's raw material lifting cylinder and are used for lifting the coarse residue's coarse residue lifting cylinder, raw material lifting cylinder and coarse residue lifting cylinder lower end intercommunication are provided with corresponding raw material inlet hopper and coarse residue inlet hopper, the inside left side of support top bin assembly is equipped with the drive mechanism of drive raw material lifting cylinder and the inside rotation of coarse residue lifting cylinder and promote, the utility model discloses convenient according to the use need to carry out the auxiliary stable feeding raw material to the unqualified coarse residue and carry out the cyclic auxiliary lifting again enter, be favorable to the operation use efficiency of improving.

The invention belongs to the technical field of pharmaceutical equipment, and particularly relates to a needle pre-filling continuous production process for plastic medicine bottles. The process comprises the following steps of (1) tube blank extrusion, (2) tube blank transfer, (3) needle adding and bottle making, (4) filling, (5) injector piston adding and sealing, and (6) blanking. The needle pre-filling continuous production process for the plastic medicine bottles is a whole systematic process and covers a process from raw material conveying to final product conveying, compared with a traditional BFS process, a packaging process is characterized in that an injection needle adding station and an injector piston adding station are added and A-level air shower protection is added in a whole transferring process, functions of equipment are greatly increased, the quality of produced products is higher, the sterile safety of the products is better, and the problem of pollution possibly existing in a process from production to injection of medicines is fundamentally solved.

The application discloses a high-pressure cleaning device, which comprises a main machine and a spray gun capable of being connected with the main machine; the main machine comprises a shell, a power unit located in the shell, the power unit comprising a motor for spraying liquid from the spray gun, a power supply device comprising at least one battery pack for supplying power to the motor, a holding part for a user to hold to carry and move the high-pressure cleaning device, and the maximum value of the product of the pressure and flow rate of the liquid sprayed from the spray gun is greater than or equal to 2000 PSI*GPM when the high-pressure cleaning device works; the volume of the main machine is less than or equal to 0.032 m 3 . The volume of the main machine is small, the main machine occupies a small space, and the high-pressure cleaning device is convenient to transport and store. In the case that the volume of the main machine is small, a large power can be achieved.

A system for preventing wear during a wash of a gas turbine engine is provided. The system includes an accessory gearbox, a transfer gearbox drivingly coupled to the accessory gearbox, and a lubrication system fluidly coupled to the accessory gearbox and the transfer gearbox. The lubrication system includes a supply circuit for supplying lubricant from a lubricant reservoir to the accessory gearbox and the transfer gearbox. The lubrication system further includes a return circuit for returning the lubricant from the accessory gearbox and the transfer gearbox to the lubricant reservoir. The lubrication system further includes a wash bypass line extending from the return circuit to the supply circuit.