547 results about "Air separation" patented technology

The wind power mineral separator comprises a supporting frame, a winnowing cavity, a wind cavity and a circulating wind pipe, the winnowing cavity is installed on the supporting frame, the interior of the winnowing cavity is hollow, a feeding hopper is arranged on the top of the winnowing cavity, and a sand discharging opening and an opening are formed in the bottom of the winnowing cavity; the air cavity is installed on the supporting frame, the interior of the air cavity is hollow, a fan is rotationally arranged in the air cavity, and one end of the air cavity communicates with the winnowing cavity; air flow blows passing minerals when passing through the winnowing chamber, and according to the principle that different specific gravities are different and transverse moving distances are different when the air flow is blown by uniform-speed equal-quantity air, different minerals finally have different falling points on a material plate, so that separation is achieved, and meanwhile dust blown by the air flow is separated by the air flow. Heavy gravels and the like are discharged from the sand discharge port, and light dust flows back into the air cavity from the circulating air pipe along with airflow, so that the dust circulates in the device, and the dust is prevented from rising.

The invention belongs to the technical field of ore screening, and discloses a semantic segmentation-based layered vibrating screen undersize particle size detection system and a semantic segmentation-based layered vibrating screen undersize particle size detection method. The material weighing device comprises a weighing belt arranged below the vibrating screen, a first driving motor connected with the weighing belt and a first bracket connected with the weighing belt and the first driving motor; the material detection device comprises a detection belt collinear with the weighing belt, a second driving motor connected with the detection belt, and a light supplementing lamp and an industrial camera which are arranged above the detection belt; the detection belt and the second driving motor are supported by a second bracket; the industrial camera faces the detection belt, and the processor is connected with the industrial camera, the second driving motor and the first driving motor. The online detection system disclosed by the invention integrates the functions of image acquisition, weighing measurement, winnowing dust removal and the like, and has the characteristics of compact structure and complete functions.

Provided are an air separation device and an air separation method that have high argon yield without increasing the heat transfer area of a deoxidized argon condenser that generates reflux liquid in an argon tower generating deoxidized argon to be used as a raw material in a high-purity argon tower. Specifically provided is an air separation device comprising: an argon tower (700) that distills argon-containing oxygen drawn from a low-pressure tower (600) and generates deoxidized argon from which oxygen has been removed; a deoxidized argon condenser (400) that generates reflux liquid in the argon tower (700); a high-purity argon tower (800) that distills deoxidized argon and extracts pure argon from which nitrogen has been removed; a high-purity argon condenser (900) that generates reflux liquid for the top portion of the high-purity argon tower (800); a high-purity argon evaporator (910) that generates ascending gas for the bottom portion of the high-purity argon tower (800); a pipeline (622) that sends liquid nitrogen to the high-purity argon condenser (900) as a cooling medium; and a pipeline (42) that sends liquid derived from a high-pressure tower (500) to the high-purity argon evaporator (910) as a heating medium.

The invention relates to a high-pressure air separation liquid valve with a multi-stage low-temperature self-tightening sealing structure, which relates to the technical field of low-temperature high-pressure fluid control and comprises a valve body assembly, a multi-stage sealing assembly and a valve rod thermal compensation assembly. The multi-stage sealing assembly is arranged on the valve element in a stepped mode and comprises a primary metal hard sealing ring, a secondary modified PTFE sealing ring and a three-stage self-tightening type metal spring energy storage ring, and the main sealing function, the flexible compensation function and the pressure self-tightening function are achieved respectively. The valve rod thermal compensation assembly comprises a titanium alloy valve rod and a copper-nickel alloy thermal buffer sleeve, and the displacement of the sealing face is automatically compensated at the low temperature through the difference between a reserved gap and the thermal expansion coefficient of a material. Through multi-stage sealing cooperation and intelligent thermal compensation, the problem of sealing leakage caused by material failure and thermal deformation under the ultralow-temperature and high-pressure working conditions is effectively solved, all-working-condition reliable sealing is achieved, the safety of the valve in the extreme environment is remarkably improved, and the service life of the valve in the extreme environment is remarkably prolonged.

Pure liquid nitrogen, liquid air or dirty liquid nitrogen generated by a rectifying tower of the air separation device is subjected to secondary pressurization through a hydraulic pump and then enters a main heat exchanger or a recooling device to recover cold energy, and high-pressure gas formed by heat absorption and gasification enters a high-pressure expansion machine to expand and do work; exhaust gas of the high-pressure expansion machine enters the rectifying tower to provide cold energy required by air separation, and pure nitrogen, waste nitrogen and pure oxygen which are discharged from the rectifying tower and are subjected to cold energy recovery through the main heat exchanger are output. The purposes of energy conservation and consumption reduction of the air separation device are achieved through the processes of primary pressurization of the compressor, secondary pressurization of the hydraulic pump, cold returning, gasification and expansion.

The application discloses a two-step high-purity nitrogen preparation process, and a device required by the process comprises a filter, an air compressor, an air precooling system, a purification system, a main heat exchanger, a nitrogen column, a main condensation evaporator I, a supercooler, an argon removal column, a main condensation evaporator II and an expander. The raw material air is separated by a nitrogen column rectification to obtain pressure nitrogen, and then the pressure nitrogen is introduced into the argon removal column as raw material gas to continue rectification, so that high-quality nitrogen product and low-quality nitrogen product can be obtained at the same time, the high-quality nitrogen product can meet the production process requirements of high-end chips, and the low-quality nitrogen product can be supplied to users with relatively low requirements on impurities such as argon content and oxygen content, so that the demand of users on different quality nitrogen products can be met to the maximum extent. The application can also provide high-quality liquid nitrogen product.

The invention relates to the technical field of plasma electric flame stoves, in particular to a system for supplying nitrogen through centralized air separation for an electric flame stove and a working method. The system comprises an air compression and pretreatment unit, a pressure swing adsorption separation unit, a nitrogen buffer pressure stabilization unit, a nitrogen distribution conveying pipe network, a user side regulation and control unit and at least one electric flame stove which are sequentially connected in the gas flow direction. According to the invention, through centralized nitrogen generation and pipeline distribution, the problem of large-flow nitrogen supply of dispersed users is solved, and the emission of nitrogen oxides is greatly reduced due to the use of oxygen-free nitrogen by the electric flame stove. According to the system, indoor oxygen supplementation of oxygen-enriched gas and domestic hot water recovery of compressed waste heat are achieved at the same time, and the comprehensive utilization efficiency of resources is improved; by adopting the carbon steel pipe net, the construction cost is reduced, and nitrogen with different purities can be flexibly produced to meet multiple requirements; and real-time matching of nitrogen supply and stove power is realized through intelligent flow control of a user side, and stable and efficient operation is guaranteed.

The application discloses a pressure curve combined air separation variable pressure intelligent adsorption blowdown method, system and device, relates to the intelligent blowdown technical field.The pressure curve combined air separation variable pressure intelligent adsorption blowdown method, system and device, comprising the following steps: S1, real-time acquisition operation state data, and pretreatment is carried out to operation state data;S2, operation state data is analyzed to pressure disturbance intensity;S3, through real-time analysis and feature extraction to pressure curve;S4, operation state data is predicted to start-stop risk;S5, comprehensive operation state data, pressure disturbance intensity analysis result and start-stop risk prediction result execute blowdown control instruction.The air compressor and variable pressure adsorption system lack linkage control based on pressure change, blowdown is easy to cause pressure fluctuation and frequent start-stop, which leads to energy consumption increase and equipment wear, and the existing control mode lacks feedforward regulation mechanism.

The application discloses a household garbage fine separation method and system suitable for pyrolysis and fermentation, and belongs to the technical field of solid waste treatment and resource utilization, and comprises pre-crushing, first magnetic separation, drum screening, air separation, fine crushing, second magnetic separation and Raman light selection; a separation equipment integrating a visual sensor and a laser Raman spectrum probe is adopted to identify and separate the material after the second magnetic separation, so that different kinds of plastics are separated based on the molecular vibration fingerprint information of the material; wherein each step is uniformly scheduled and controlled by an automatic control system according to a preset program or real-time feedback parameters, and the dust generated in the whole process is collected and purified by a tail gas dust removal control system. Through the construction of a multi-stage collaborative process route, the material is fully dissociated and purified step by step, and the problems of low separation precision and poor system collaboration are solved by cooperating with automatic unified scheduling and full-process dust removal.

The invention discloses a lifting hook type shot blasting device, and relates to the technical field of shot blasting machines, the lifting hook type shot blasting device comprises a shot blasting chamber and further comprises a support fixed on the shot blasting chamber, the support is slidably connected with a lifting appliance through a rail, a plurality of shot blasting devices are fixed on the shot blasting chamber, a spiral conveyer is fixed on the shot blasting chamber, and the lifting appliance is connected with a lifting hook. A bucket elevator is arranged on one side of the spiral conveyor, and the discharging end of the spiral conveyor is located in the bucket elevator. The shot blasting device comprises a shot blasting chamber and a supporting frame fixed to the shot blasting chamber, a treatment box is fixed to the supporting frame, a screening mechanism is arranged on the treatment box, and the screening mechanism is used for screening impurities containing impurities in shots; the winnowing mechanism is arranged on the treatment box, and the winnowing mechanism is used for screening out fine impurities containing impurities in the shots; through the arrangement of the screening mechanism, large-particle-size impurities and broken shots can be more directly and effectively prevented from entering the shot blasting chamber again, and all parts in the shot blasting chamber can be well protected.

A hydraulic device for a pitch system of a wind turbine includes an air separation device which includes a fluid collector having an air accumulation portion, at least one fluid inlet and a fluid outlet portion, wherein a fluid emulsion of air and hydraulic fluid can be introduced into the fluid collector through the at least one fluid inlet. The fluid collector is labyrinth-shaped so that rotation of the air separation device about an axis of rotation causes the air in the fluid emulsion to move through the labyrinth-shaped fluid collector in a direction to the air accumulation portion and the hydraulic fluid in the fluid emulsion to move through the labyrinth-shaped fluid collector in a direction to the fluid outlet portion.

The application provides a device for coupling xenon isotope separation and neon-helium purification separation and a use method thereof. Based on various non-low-temperature gas separation technologies, through multi-stage module cooperation, high-efficiency enrichment of xenon isotope raw material gas under non-low-temperature conditions and purification and purification of air separation crude neon-helium gas are coupled, including thermal coupling and intermediate material coupling. The crude neon-helium gas produced in the process is fully utilized, the energy consumption and operation complexity are significantly reduced, and the development advantage can be further improved.

The invention discloses an extrusion method of a regenerated aluminum profile with a complex section, and relates to the technical field of aluminum profile processing, and the extrusion method comprises the following operation steps: S1, raw material pretreatment: crushing waste aluminum subjected to impurity removal to form aluminum particles, and cleaning the aluminum particles by using a sodium hydroxide solution with the mass concentration of 5-8% at the temperature of 50-60 DEG C for 15-20 minutes; according to the extrusion method for the regenerated aluminum profile with the complex section, various impurities in waste aluminum are effectively removed through a manual and mechanical combined sorting mode in cooperation with multiple impurity removal technologies such as magnetic separation, eddy current separation and wind power separation, and then standardized treatment such as crushing, alkali washing and drying is conducted, so that efficient recycling of regenerated aluminum resources is achieved, resource waste is reduced, and the production cost is reduced. And a clean and uniform raw material basis is provided for subsequent procedures, profile defects caused by impurity residues are avoided from the source, and the raw material utilization rate and the product percent of pass are increased.

The utility model provides an air separation unit purification system electric heater which comprises a first electric heater and a second electric heater, and a branch pipeline of each electric heater comprises an inlet cut-off butterfly valve, an outlet cut-off butterfly valve, an outlet temperature measuring point, a dry burning data acquisition module and a dry burning working condition alarm module. Wherein the outlet temperature measuring point is arranged on an outlet pipe section, behind the corresponding electric heater and in front of the outlet cut-off butterfly valve, on the corresponding branch pipeline, and is used for monitoring the temperature of the waste nitrogen gas flowing out of the corresponding electric heater; the dry burning data acquisition module is used for monitoring pressure data of inlets and outlets of corresponding electric heaters in real time; the dry-burning working condition alarm module is connected with the dry-burning data acquisition module and is used for acquiring the pressure data of the inlet and outlet of the electric heater and giving an alarm when the inlet and outlet pressure difference is smaller than a preset value. By means of the technical scheme, timeliness and accuracy of dry burning early warning of the electric heater are improved, and equipment is effectively prevented from being damaged or causing safety accidents due to dry burning.

The utility model discloses a kind of medium-pressure nitrogen gas supply system in air separation device, including liquid nitrogen storage tank, water bath type heat exchanger, first medium-pressure nitrogen pump and second medium-pressure nitrogen pump;The liquid nitrogen storage tank is connected with the water bath type heat exchanger through first medium-pressure nitrogen pipeline, the water bath type heat exchanger is connected with medium-pressure nitrogen gas pipe network through gas nitrogen delivery pipeline;The first medium-pressure nitrogen pump is set on the first medium-pressure nitrogen pipeline;Second medium-pressure nitrogen pipeline is connected on the first medium-pressure nitrogen pipeline between the liquid nitrogen storage tank and the first medium-pressure nitrogen pump, and the other end of the second medium-pressure nitrogen pipeline is connected on the first medium-pressure nitrogen pipeline between the first medium-pressure nitrogen pump and water bath type heat exchanger.The advantage is: by adding second medium-pressure nitrogen pump, ensure that medium-pressure nitrogen gas is stably supplied, avoid the pressure fluctuation of medium-pressure nitrogen gas pipe network caused by the frequent start-stop of first medium-pressure nitrogen pump, while reducing equipment failure rate;By interlocking the medium-pressure nitrogen pump with medium-pressure nitrogen gas pipe network, the overpressure risk of medium-pressure nitrogen gas pipe network is avoided.

The application relates to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof, and belongs to the field of coal gasification combined cycle power generation coupled with biomass, in particular to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof. The application is used for solving the problems that the existing IGCC system has low CO2 capture rate, high energy consumption, low power generation efficiency, and a large amount of nitrogen generated in the oxygen taking process and difficult to effectively utilize. The application comprises an air separation device, a gasification furnace, a sensible heat recovery device, a purification device, a gas power generation unit, a waste heat recovery unit, a steam power generation unit, a biomass fermentation device, a methane reforming unit, an adsorption separation unit and an ammonia synthesis tower. The application is based on the overall coal gasification combined cycle power generation system of post-combustion CO2 capture and oxygen-enriched combustion technology, introduces a biomass ammonia synthesis process, generates H2 and CO through biomass fermentation and reforming, utilizes N2, and improves the system efficiency.

A cyclonic separation system for a cleaning apparatus includes a suction source. A suction inlet is in fluid communication with the suction source for capturing debris matter. The recovery tank defines a collection chamber in fluid communication with the suction inlet and the suction source. A filter housing is disposed between the collection chamber and the suction source. A rotational deflection plate is operably coupled with the filter housing and disposed within the collection chamber. The suction source is configured to generate a cyclonic airflow within the collection chamber for separating the debris material from working air. The rotational deflection plate is configured to rotate about a central axis of the recovery tank in response to the cyclonic airflow.

This invention discloses a novel liquid argon filling pump sealing gas system, belonging to the field of metallurgical air separation oxygen production technology. It includes a liquid argon storage tank, a booster, and a liquid argon filling pump. A liquid phase outlet at the lower end of the liquid argon storage tank is connected to the liquid argon filling pump via a first pipe to fill the pump with liquid argon. Another liquid phase outlet at the lower end of the liquid argon storage tank is connected to the booster via a second pipe. A gas phase outlet at the upper end of the liquid argon storage tank is connected to the booster via a third pipe. The booster is connected to the sealing gas interface of the liquid argon filling pump via an instrument pipe to supply a sealing gas source. The instrument pipe is connected to the second pipe via a tee. The gas phase outlet of the liquid argon storage tank forms a vent outlet at the top of the liquid argon storage tank via a tee on the third pipe. Gaseous argon from the upper end of the liquid argon storage tank enters the booster, is reheated to room temperature by the booster, and then enters the sealing gas interface of the liquid argon filling pump via the instrument pipe as a sealing gas. This system ensures the purity of the liquid argon product, promotes resource reuse, and effectively reduces costs.

The application is suitable for the technical field of deep cooling nitrogen production, and particularly relates to a deep cooling air separation reflux control method and related device. The method comprises the following steps: obtaining production control data and production process data chain of air in a separation process; determining a separation condition chain based on the production control data and the production process data chain; wherein the separation condition chain is used to reflect the change degree of component data of the air under the influence of separation parameter setting corresponding to each separation process in the separation process; determining a separation control strategy based on the separation condition chain, the production process data chain and the production control data; wherein the separation control strategy comprises a first strategy for reflecting that a product with incomplete separation is washed again or a second strategy for reflecting that a product with complete separation is stored in a storage tank. The deep cooling air separation reflux control method provided by the application can improve the production efficiency of oxygen, nitrogen, argon and other production products.

The utility model relates to the technical field of air separation equipment, in particular to an air separation stable flow control device based on the shaft current elimination technology, and adopts the technical scheme that the air separation stable flow control device comprises a motor body and an adjusting box, a rear cover is arranged at the rear end of a shell of the motor body, a motor shaft is arranged in the motor body, and a metal bearing is arranged on the motor shaft; fan blades are installed at the starting end of a motor shaft, the adjusting box is installed at the rear end of the rear cover, a threaded rod is rotationally installed in the adjusting box, adjusting blocks which are symmetrically distributed are installed on the threaded rod in a threaded mode, a fixing rod is installed at the front end of each adjusting block, an insulating plate is installed at the tail end of each fixing rod, and a spring is installed on each insulating plate. A conductive clamping plate is installed at the tail end of the spring, a grounding wire is arranged on the conductive clamping plate, a second extending hole is formed in the side end of the rear cover, and the grounding wire extends out of the second extending hole. The air separation device has the advantages of being capable of eliminating shaft current, simple in structure, convenient to maintain and repair and capable of guaranteeing stable flow control of the air separation device.

The invention discloses a sand-raking-free maintenance device and method in an air separation plant cold box, the sand-raking-free maintenance device comprises a fixed positioning guide sleeve, a rotary cutting sand blocking device and a push type guide sleeve, and the fixed positioning guide sleeve is welded to the outer side of a cold box plate; the rotary cutting sand plugging device comprises a fixing support, a cutter head and a driving mechanism, and at least one pair of rhombic cutters is arranged at the front end of the cutter head. And the front end port of the push type guide sleeve is matched with the outer surface of the tower or the condensing evaporator barrel in shape. Maintenance can be completed without cleaning all pearlife, a large amount of manpower, financial resources and time cost are saved, and operation risks and pollution to the environment in the conventional maintenance process are avoided.

The utility model discloses a condensate pipe with pipeline connectors in an air separation workshop. The condensate pipe comprises a first condensate pipe connector. One side of the first condensate pipe connector is fixedly connected with a C-shaped frame, one side of the inner wall of the C-shaped frame is fixedly connected with a locking block, the other side of the first condensate pipe connector is fixedly connected with a connecting block, and one side of the connecting block is provided with a locking groove; wherein a sealing plug is connected to one side of the first condensate pipe connector in an attached mode, and a silica gel ring is fixedly connected to the middle of the outer side of the sealing plug; a lantern ring is connected to the outer side of one end of the first condensate pipe connector in an attached mode, clamping of a locking block and a locking groove is achieved through rotation, a gap is sealed through a silica gel ring, the position of a sealing plug can be conveniently positioned, and therefore the sealing performance of the condensate pipe can be conveniently enhanced, and through the arrangement of the lantern ring, a mounting base and a mounting bolt, the sealing performance of the condensate pipe can be improved. Therefore, the first condensate pipe connector and the second condensate pipe connector are connected more stably.

The invention discloses a new energy off-grid green, hydrogen and ammonia production integrated system coupled with liquid-air energy storage and power generation, and relates to the technical field of new energy comprehensive utilization and chemical production. A wind-light-electricity new energy power generation module converts wind energy and solar energy into electric energy, and a liquid air energy storage module stores energy through air compression-liquefaction-expansion; the hydrogen production module utilizes electric energy to electrolyze water to produce hydrogen, the air separation module produces nitrogen and supplies the nitrogen to the ammonia production module, and the ammonia production module reacts hydrogen and nitrogen to synthesize green ammonia. The problems of intermittency and instability of new energy power generation are effectively solved, integrated production of green hydrogen and green ammonia under the off-grid condition is achieved, dependence on traditional energy and external infrastructures is reduced, the production cost and carbon emission are reduced, and the energy utilization efficiency is improved; meanwhile, the circulating system of the ammonia production module improves the utilization rate of raw materials and improves the economic benefits of the system.

This invention discloses a waste heat recovery device for an air separation compressor, comprising a housing with a high-pressure air inlet and a high-pressure air outlet on both sides. A first heat-conducting fin is distributed near the high-pressure air inlet, and a second heat-conducting fin is distributed near the high-pressure air outlet. A cold water inlet and a hot water outlet are respectively located at the top and bottom of the front of the housing. Multiple first heat-conducting pipes run through the first heat-conducting fins, with their ends connected to the cold water inlet and the hot water outlet, respectively. Compared with existing technologies, this invention achieves cascaded utilization of compressor energy, continuous operation of intake air purification, and on-demand distribution of waste heat, resulting in significant energy-saving and economic benefits.

The embodiment of the invention discloses a liquid feeding air separation device which comprises a rectifying tower, a liquid feeding device, a liquid feeding device, a liquid feeding device, a liquid feeding device and a liquid discharging device, and the middle of the rectifying tower is provided with a liquid air feeding port; the condensing evaporator is arranged at the bottom of the rectifying tower; wherein liquid air enters the rectifying tower from the liquid air feed port to be rectified, liquid oxygen is obtained at the tower bottom, nitrogen is led out from the tower top of the rectifying tower and led into the condensation evaporator after being pressurized and cooled, liquid nitrogen flowing out of the condensation evaporator is divided into two strands, one strand serves as reflux liquid of the rectifying tower, and the other strand is led out. According to the technical scheme, liquid air is used as feed, nitrogen at the top of the tower is pressurized and cooled and then is introduced into the condensation evaporator, then heat exchange is carried out on the nitrogen and liquid oxygen at the bottom of the rectifying tower, and therefore rectification is achieved, and the air separation equipment with the liquid air as the raw material is provided.

This utility model discloses an auxiliary collection device for positive pressure discharge of air and water from an air compressor. It includes a collection box with an opening at the top and a pressure relief cover installed at the opening. The pressure relief cover has an exhaust port. An air-water damping pipe is connected to the side wall of the collection box, connecting the inside and outside of the collection box. The upper end of the air-water damping pipe is installed on the side wall of the collection box and is used to connect to the outlet pipe of the air compressor's discharge valve. The lower end of the air-water damping pipe contacts a sound-absorbing pad. A damping diaphragm is installed inside the air-water damping pipe. A water-permeable and air-permeable sound-absorbing pad is installed inside the collection box, with the height of the sound-absorbing pad higher than the lower end of the air-water damping pipe. A drain outlet is located below the sound-absorbing pad in the collection box. This utility model utilizes the air-water damping pipe and the sound-absorbing pad to achieve water-air separation and pressure relief. The separated water is discharged from the drain outlet, and the separated gas is discharged from the exhaust port on the pressure relief cover. The exhaust pressure is close to atmospheric pressure, enabling open discharge.

The invention relates to the technical field of industrial oxygen production, and particularly discloses a turbine pressure swing adsorption oxygen production device and a use method thereof.The device comprises an air pressurization module, an adsorption separation module, an energy recovery module, a product pressure stabilization and pressurization module and a control module; air separation oxygen generation is achieved through periodic adsorption and desorption of an adsorption tower in the adsorption separation module, and meanwhile the energy recovery module is used for converting pressure potential energy of impurity gas in the desorption process into mechanical energy so as to supply energy to the air pressurization module or generate electricity outwards. According to the use method, continuous oxygen production and energy recovery are realized through a circulation process of multi-tower alternate adsorption, desorption, pressure equalizing and flushing. The energy recovery module is communicated with the desorbed gas outlet of the adsorption separation module and is used for converting the pressure potential energy of the impurity gas discharged in the desorption process of the adsorption tower into mechanical energy, so that energy is recovered from the waste gas, and the energy consumption is reduced.

The application discloses a CO2 capture method and system based on fuel staged conversion coupled with chemical looping combustion, and the method comprises the following steps: flue gas is introduced into a carbonation tower filled with metal oxygen carriers MeO and adsorbents A, the adsorbents A adsorb CO2 in the flue gas, and then the solid in the tower is transported to a calciner; the adsorbents A after adsorption are decomposed into the adsorbents A and CO2 in the calciner, the MeO in the calciner reacts with the substances transported in a fuel pre-conversion reactor to generate a reduced metal oxygen carrier; the regenerated adsorbents A and the reduced metal oxygen carrier in the calciner are transported to an air reactor to generate MeO and regenerated adsorbents A which are returned to the carbonation tower; fuel and reactants are introduced into the fuel pre-conversion reactor, part of the fuel is converted, and the products are sent into the calciner. Through fuel partial conversion and chemical looping combustion, the application realizes grade matching of the fuel conversion and the adsorbent regeneration process, avoids air separation energy consumption of separated pure oxygen, and effectively reduces CO2 capture energy consumption after medium-high temperature adsorption combustion.

This invention discloses a method for producing high-purity oxygen based on LNG cold energy, belonging to the technical field of gas purification equipment. The implementation steps include: S1, pre-cooling and stepped heat exchange of raw air; S2, distillation separation process using LNG cold energy; S3, oxygen purification and argon separation; S4, cold energy recycling. This invention can improve the purity of oxygen, making the molar purity of oxygen above 99.9%, and rationally utilize LNG cold energy to liquefy raw air, reducing air separation costs. In addition, by coupling a crude argon tower, argon with a molar fraction of 7.4% can be produced for the utilization of rare gases.

The invention relates to the technical field of comprehensive energy system planning and operation, and discloses a wind-solar-hydrogen-ammonia-alcohol integrated collaborative optimization planning method, system and equipment and a medium. The method comprises the following steps: constructing an integrated structure comprising a wind-solar power generation unit, an electrolytic hydrogen production unit, an air separation nitrogen production unit, a synthesis ammonia unit, a methanol synthesis unit, a carbon capture unit and a hydrogen storage unit; an electricity-hydrogen-nitrogen-carbon-ammonia-alcohol multi-energy flow network topological structure is established; constructing a capacity planning layer-operation simulation layer double-layer optimization model by taking the lowest total cost of the whole life cycle of the system as a target, and dynamically introducing carbon emission cost in an operation layer; and solving the model by adopting an improved multi-target genetic algorithm, and outputting the optimal planning capacity and the hour-level operation plan of each unit. According to the method, multi-energy flow collaboration, cross-period optimization and economic-low carbon collaboration of the wind-solar-hydrogen-ammonia-alcohol system under multiple uncertainties are realized, and the flexibility, the economical efficiency and the low carbon property of the system are improved.