36results about How to "High energy conversion rate" patented technology

The invention provides an ammonia / kerosene dual-fuel precooling engine and a fuel cell power generation system, and belongs to the technical field of aviation systems. The problems of poor variable working condition performance of an engine, difficulty in matching of a gas compressor and a turbine, low working efficiency, fuel waste and the like due to the fact that working of the gas compressor is limited by overhigh total temperature of flying incoming flow air under the high Mach number of an aircraft are solved. According to the invention, the electric energy generated by the solid oxide fuel cell system is supplied to the aircraft load and the motor, and the motor drives the secondary gas compressor to do work in a manner of coaxial installation with the secondary gas compressor, so that the previous single-pole compression is changed into multi-stage compression. A dual-fuel pre-cooling propulsion method is adopted, liquid ammonia and aviation kerosene are selected as dual fuels of the system, the heat sink requirement for incoming flow air pre-cooling can be met, the fuel heat value requirement needed when the aircraft flies at the high Mach number can also be met, and therefore stable and safe flight of the aircraft at the hypersonic speed becomes possible.

The invention provides an in-situ mechanical detection rack, device and method for a synchrotron radiation light source. The in-situ mechanical detection rack comprises an output power part, a transmission part, a sensing part, a heat dissipation part and a supporting part. The in-situ mechanical detection device comprises an in-situ mechanical detection rack, a controller and terminal control software. The ball screw which is integrally ground and formed in a left-and-right rotating mode has extremely high collimation degree and precision, rigid fixation is applied to the two ends of each stage of worm and gear transmission shaft, and the situation that the screw connected with a worm gear deforms due to shearing force provided by a worm is avoided. The heat dissipation system for the motor avoids the problems of sensor temperature excursion, unstable working condition of the motor, thermal expansion of a sample and the like caused by heat accumulation of the rack. Due to the sitting type layout, the stable base, the holes in the specific positions and the small instrument size, the device can be perfectly matched with the experiment conditions of a synchrotron radiation laboratory. The in-situ mechanical detection rack and the in-situ mechanical detection device can be directly used for carrying out synchrotron radiation in-situ mechanical detection operation.

The utility model discloses a factory-like full-automatic boxing, capping and racking production line for edible mushrooms, which comprises a first roller way conveying assembly, one end of the first roller way conveying assembly is provided with an automatic box placing assembly, and the other end of the first roller way conveying assembly is connected with a raw material boxing assembly. A second roller way conveying assembly is arranged on the side portion of the raw material boxing assembly, an automatic cover pressing assembly is arranged in the middle of the second roller way conveying assembly, and an automatic racking assembly is arranged at the tail end of the second roller way conveying assembly. By means of the structure, an edible mushroom production mode is changed into a full-automatic mushroom box cultivation mode from an original bagging cultivation mode, mushroom outburst can be achieved, the fruiting period is shortened, and the production efficiency is improved.

This invention relates to the field of biotechnology, specifically disclosing a microalgal starch rich in resistant starch and its preparation method. Microalgae are cultured under nitrate-nitrogen or nitrogen-deficient (-N) conditions, with pure air or air containing CO2 introduced, and bicarbonate, glycolate, and glycerol supplemented as carbon sources, under continuous light conditions, allowing the microalgal cells to grow and accumulate resistant starch. The yield and content of the resistant starch prepared by this invention are significantly improved compared to uncontrolled conditions. The resistant starch yield is increased by 49–169% compared to uncontrolled conditions; the resistant starch production is increased by 49–278% compared to uncontrolled conditions; and the percentage of resistant starch in total starch (%TS) is increased by 32–134% compared to uncontrolled conditions.

The invention relates to the technical field of design of centripetal turbines of micro gas turbines, in particular to a design method for a volute and a nozzle ring of a centripetal turbine of a micro gas turbine. One-dimensional design of a volute and a nozzle ring is carried out by adopting a near-zero vortex design method, after a three-dimensional model is established, three-dimensional flow analysis and structure optimization are carried out, and the blade profile design of the nozzle ring adopts an integer operation mode in the design of an axial flow plane cascade gas turbine under the framework of the near-zero vortex design. The required annular blade grid is obtained through shape-preserving transformation, the blade profile can achieve a better pneumatic effect, and the energy conversion rate is increased; ribs are additionally arranged at an outlet in the volute design, and the problem that static strength of the volute is insufficient possibly is solved. Due to the design of the nozzle ring and the volute, the overall design requirement of the centripetal turbine of the micro gas turbine is met, the aerodynamic performance of the turbine is further improved, and the flowing loss of airflow is reduced.

The utility model discloses an ultraviolet sensitization device for a nuclear track membrane, which comprises an ultraviolet light source, an ultraviolet light source, an ultraviolet light source, an ultraviolet light source and an ultraviolet light source, the working platform is used for placing or bearing the nuclear track membrane; the working platform comprises a circulating device, and the circulating device is used for driving the nuclear track membrane to be subjected to circulating sensitization in a preset time period under the irradiation of the ultraviolet light source. The efficient sensitization of the nuclear track membrane is realized.

The invention relates to the technical field of air conditioners, in particular to an omni-directional air supply air conditioning device and a heat exchange air supply system powered by solar energy, a photovoltaic panel at the top of a building is used for supplying energy, omni-directional heat exchange airflow is provided for the living space through an indoor unit, and the omni-directional heat exchange airflow is evenly dispersed and circulated in a large range; the air state can be uniformly and efficiently changed for residential spaces in some buildings which are inconvenient to connect and introduce urban power grid electric power, have the requirement for using clean photoelectric resources and have the central symmetry characteristic, so that the buildings have similar somatosensory comfort no matter where the buildings are located in the spaces; the heat exchange part of the outdoor unit discharges air radially, the blown air can blow the photovoltaic panel, dust on the surface of the photovoltaic panel is removed, and the plate surface is kept clean and the lasting energy conversion rate is kept.

The invention relates to the technical field of probiotics, in particular to intestinal tract source pediococcus acidilactici of Yanqu county in Tibet and fat reducing application thereof. The pediococcus acidilactici disclosed by the invention is preserved in the China General Microbiological Culture Collection Center on April 29, 2025, and the preservation number is CGMCC NO.34406; the strain has the characteristics of acid resistance, cholate resistance and stress resistance, and has high survival rate and planting efficiency; the strain is free of hemolysis, free of toxic factors and high in safety; the strain can secrete short-chain fatty acid and antibacterial peptide, inhibit pathogenic bacteria and promote intestinal barrier repair; short-chain fatty acid generated by metabolism of most of carbon water by the strain can be directly absorbed by intestinal epithelial cells, and can be used as an energy substance to replace partial glucose demand, so that the metabolism energy consumption is reduced, the energy conversion rate of feed is improved, the feed conversion is promoted, and the effects of reducing fat and weight and improving the non-alcoholic fatty liver disease are achieved.

The invention discloses an anti-lock axle generator which comprises a transversely-arranged cylinder and a supporting seat, the two ends of the cylinder are connected with the supporting seat through a front end plate and a rear end plate, a base is fixed to the bottom of the supporting seat, and integrated end plate cylinders are welded to the opposite faces of the front end plate and the rear end plate correspondingly. A shaft holding device is arranged on the barrel in a penetrating mode and connected with the two end plate barrels, a rotating shaft is fixed in the shaft holding device in a penetrating mode, a plurality of rotor discs are arranged on the outer surface, located in the barrel, of the shaft holding device in a layered mode, the rotor discs are located in cavities of the stator units, and a winding coil is arranged on the periphery of the bottom wall of the stator buckling cover. And a permanent magnet is mounted on the rotor disc. The device is wide in mounting environment adaptability range, can be flexibly mounted and dismounted in a limited space, and is simple in overall structure, convenient to use, high in power generation efficiency and high in energy conversion rate.

The present invention discloses a multi-phase winding of a permanent magnet motor stator. In the multi-phase winding, each phase winding is formed by connecting one coil or multiple coils, each coil includes a double-layer conductor element at the head end and a single-layer conductor element at the end and a plurality of intermediate double-layer conductor elements arranged between the two. The upper (or lower) conductors of all double-layer conductor elements are connected in sequence through the end conductors, and after being connected to the end element, the lower (or upper) conductors of all double-layer conductor elements are connected in reverse order. Each element corresponds to a stator slot, and there is an insulating medium between the upper and lower conductors of the double-layer conductor elements located in the same stator slot, and the number of stator slots spanned by adjacent elements in the same coil is the same. The winding of the present invention has the advantages of small leakage reactance, small conductive resistance, small heat loss, etc., which is of great significance to improving the power factor, efficiency and power density of the motor. The coil topology can be extended and expanded according to the number of stator slots, and the present invention is particularly suitable for multi-pole and multi-phase permanent magnet motors.

The invention discloses an energy brick for energy supplementation in the lactation period of sows, and belongs to the technical field of energy supplements. The energy brick comprises the following components: grease, carbohydrate, a protein raw material, amino acid, an element supplement, vitamins and an additive. The energy brick for supplementing energy in the lactation period of the sows does not contain antibiotics and chemical synthetic drugs, does not cause adverse effects on growth of the sows, and does not indirectly affect human health; the energy brick for supplementing energy in the lactation period of the sows is formed in a brick form, so that the energy brick is convenient to store and transport, the sows mainly eat food in a licking mode, the feeding speed of the sows can be slowed down, the feeding frequency is reduced, and meanwhile, continuous supply of energy can be effectively guaranteed.

The present invention discloses an intelligent plunger drainage and gas production system and a method for using the same, comprising an intelligent plunger for drainage and gas production and having energy conversion, a wellhead assembly located at a wellhead and used for capturing and supplying energy to the intelligent plunger, and a control mechanism for controlling the action state of the intelligent plunger; an energy conversion assembly for supplying energy to the intelligent plunger is arranged in the intelligent plunger, and the kinetic energy generated by the airflow in the well is converted into electrical energy through the energy conversion assembly, and the potential energy of the intelligent plunger when moving in the well is converted into electrical energy; the kinetic energy generated by the airflow and fluid in the well is converted into electrical energy through a generator set arranged in the intelligent plunger and in a blowout preventer box, and at the same time, the potential energy during the downward movement of the intelligent plunger is converted into electrical energy and stored in a battery compartment, thereby greatly improving energy utilization, greatly reducing dependence on external energy, and improving performance.

An end cover is fixed to the open end of a pump cavity in a sealed mode, a cam rotor is installed in the pump cavity, a front rotating shaft penetrates through a front rotating shaft hole in a sealed mode, is rotationally connected with the front rotating shaft hole and then stretches out of a pump body, and a rear rotating shaft is rotationally connected with a rear rotating shaft fixing groove. The upper scraping plate and the lower scraping plate are arranged in the pump cavity on the upper side and the lower side of the rotor shaft respectively and divide the pump cavity into a low-pressure cavity on the left side and a high-pressure cavity on the right side together with the rotor shaft, the front end of the upper scraping plate and the front end of the lower scraping plate are fixed to the inner wall of the pump cavity through the upper torsion spring and the lower torsion spring respectively, and the winding is embedded into the inner surface of the end cover or the inner wall of the bottom of the pump cavity. The permanent magnet pair is embedded in the surface of one side, close to the winding, of the rotor shaft, the rotor shaft rotates, the upper scraper and the lower scraper swing, and the free ends of the upper scraper and the lower scraper always abut against the peripheral face of the rotor shaft to scrape fluid on the surface of the rotor shaft. The power generation device is compact in structure, high in efficiency and capable of achieving mutual conversion among electric energy, mechanical energy and hydraulic energy, and has good application and popularization value.

The present application relates to the technical field of micro-electromechanical systems, and provides an on-chip fluid manipulation module, including a microfluidic channel, a Lamb wave resonator located at the base of the microfluidic channel, and the Lamb wave resonator includes parallel interdigitated electrodes, and the direction of the electrodes can be: perpendicular to the extension direction of the microfluidic channel, or parallel to the extension direction of the microfluidic channel, and a magnet can be set on the opposite side; or a bending part of the microfluidic channel can be set. Through different combinations of microfluidic channels and Lamb wave resonators, the functions of on-chip flow resistors, liquid agitators, particle traps, and fluid drivers can be realized, and because the acoustic fluid effect of the Lamb wave resonator is stable, it is used to drive the on-chip fluid to achieve high driving efficiency and reduce the problem of bubble oscillation.

The application discloses a kind of multi-flexible body coupling damping structure vibration measurement and control device, comprising: multi-flexible body damping structure, vibration detection part, electromagnetic energy conversion part, vibration excitation part and drive control part;Multi-flexible body damping structure includes upper layer flexible beam coupling body, middle layer body and lower layer flexible beam coupling body, top support plate is connected with upper layer flexible beam coupling body, bottom support plate is connected with lower layer flexible beam coupling body, middle layer body is connected with upper layer flexible beam coupling body and lower layer flexible beam coupling body respectively;Piezoelectric driver and piezoelectric sensor are pasted on first flexible beam, first flexible beam and vertex support, first flexible beam and square support, square support and second flexible beam are all connected by right-angle support.Vibration generator makes device produce vibration, vibration signal is acquired using piezoelectric sensor and acceleration sensor, vibration control under the structure of multi-flexible body coupling is detected, and it is applied to the field of vibration measurement and control of flexible multilayer architecture.

The present invention relates to a battery heating technology, and specifically to a battery series heating control method and system, comprising obtaining a battery data set, fitting a battery characteristic curve through the battery data set, obtaining a current input variable, and controlling the battery to heat itself through its own charging and discharging according to the output value of the battery characteristic curve; discharging at a first preset time interval, and charging at a second preset time interval through an electric vehicle kinetic energy recovery system to obtain a pulse current to increase the internal resistance of the battery to achieve a battery heating effect; calculating the charging current according to the electric vehicle's recovered kinetic energy and the charging voltage, and maximizing the battery's thermal efficiency by controlling the pulse current frequency; calculating the lithium deposition voltage according to the battery temperature and the charging rate, and controlling the charging voltage within the lithium voltage range to ensure safe operation of the battery and extend the battery life.

The utility model relates to a secondary plastic package stacked crystal type optical coupler packaging structure, which comprises a first guide pin, a second guide pin and a third guide pin, the second guide pin is adjacent to the first guide pin; the photoelectric unit is arranged on the first guide pin; the light-transmitting insulating block is arranged on the photoelectric unit; the light-emitting unit is arranged on the light-transmitting insulating block; and the light-reflecting colloid covers the photoelectric unit, the light-transmitting insulating block and the light-emitting unit.

This disclosure relates to an energy storage method and system based on carbon dioxide chemical conversion, comprising: capturing CO2 generated by a power generation module using a capture module; subjecting the CO2 from the capture module to plasma treatment with carbon materials in a CO2 decomposition module to produce CO-containing product gas; using the product gas for the synthesis of chemical products and / or fuels; or sending the product gas into the power generation module; and transmitting the electrical energy generated by the power generation module to the power grid and / or the CO2 decomposition module; wherein the carbon materials include one or more of biomass, biochar, activated carbon, hydrothermal carbon, and coal. The method of this disclosure converts carbon materials and CO2 into CO as a medium for storing grid electricity. When the grid requires electricity, the separated CO is used for ignition or power generation, providing fuel for the cold start of coal-fired power boilers, or enabling rapid start-up of coal-fired power boilers under low load. When the grid does not require electricity, the product gas is used for the synthesis of chemical products, thus playing a role in peak shaving and valley filling.

This application discloses a DAB converter and its driving control method. The method includes: obtaining the voltage transfer ratio based on the input voltage and output voltage of the DAB converter; obtaining the feedforward power based on the input voltage, voltage transfer ratio, and output current of the DAB converter; obtaining the primary-to-secondary side shift ratio based on the input voltage, output voltage, voltage transfer ratio, input current, and feedforward power of the DAB converter; obtaining the primary-side inward shift ratio and the secondary-side inward shift ratio based on the voltage transfer ratio, feedforward power, and the primary-to-secondary side shift ratio; and driving the DAB converter based on the primary-side inward shift ratio, the secondary-side inward shift ratio, and the primary-to-secondary side shift ratio. This invention optimizes the values ​​of the primary-side inward shift ratio, the secondary-side inward shift ratio, and the primary-to-secondary side shift ratio using relevant parameters of the DAB converter to achieve precise driving control of the DAB converter. By adjusting the control parameters of the DAB converter, the soft-switching range can be expanded, current stress reduced, and light-load efficiency improved, while significantly increasing the system's energy conversion rate.

The invention discloses an efficient energy-saving centrifugal slurry pump, and relates to the technical field of centrifugal pumps, the efficient energy-saving centrifugal slurry pump comprises a support and a volute, a bearing box is arranged at the upper end of the support, a rotating shaft is rotatably arranged on the bearing box, a driving assembly is further arranged on the support, the volute is installed on the support, a water inlet and a water outlet are formed in the volute, one end of the rotating shaft extends into the volute, and the other end of the rotating shaft extends into the volute. A water storage cavity is formed in the end, located in the volute, of the rotating shaft, a plurality of water spraying grooves are formed in the circumferential wall of the rotating shaft and communicate with the water storage cavity, and the water storage cavity and the water spraying grooves are closer to the water inlet relative to the impeller. Water in the water storage cavity is thrown out of the water spraying groove due to centrifugal force, the water sprayed out of the water spraying groove forms a water curtain, and the axial momentum of particles entering the volute from the water inlet is reduced through the water curtain. The application has the effects of improving the use performance of the equipment, reducing the damage probability of the equipment and reducing the energy consumption.

The application discloses an organic-alloy composite graphite felt and a preparation method and application thereof, and comprises the following steps: preparing pretreated graphite felt; preparing precursor graphite felt by reacting triphenylphosphine-copper hydride hexamer and silver trifluoromethanesulfonate; reacting the precursor graphite felt with ammonia water and an organic reducing agent solution, and performing multi-step freeze drying to obtain the organic-alloy composite graphite felt. By constructing a unique organic-alloy composite structure on the graphite felt substrate, the active site density of the electrode surface is effectively increased, and the activation energy of the vanadium ion redox reaction is greatly reduced. Through complexation reaction, the phosphorus-containing compound and the carboxylic acid-containing compound are combined on the graphite felt and V 2+ The electrostatic attraction forms an ion cluster body with vanadium ions as the core, hinders the V 2+ agglomeration to form a precipitate, inhibits the generation selectivity of the precipitate, improves the thermal stability of the electrolyte, and further improves the battery efficiency.

The utility model relates to the field of sodium iodide production, and discloses a novel sodium iodide vacuum drying device which comprises a fixed seat and a butt joint barrel, a storage barrel is rotatably mounted on the inner wall of the fixed seat, the bottom end of the butt joint barrel communicates with a discharging pipe, and a rotating frame is welded to the bottom end of the butt joint barrel; two adjusting rods are rotatably connected to the surface of the rotating frame, the two adjusting rods are symmetrically distributed with the rotating frame as the axis, sliding blocks are rotatably installed at the ends, away from the rotating frame, of the adjusting rods, and the top of the butt joint barrel is movably connected with the bottom end of the storage barrel. A butt joint barrel is installed at the bottom end of a storage barrel through a rotating frame, the bottom end of the butt joint barrel communicates with a discharging pipe, the rotating frame is rotationally connected to the bottom end of the butt joint barrel, an adjusting rod is rotationally installed at one end of the rotating frame, and a sliding block is rotationally connected to one end of the adjusting rod; therefore, the processing materials discharged from the bottom end of the material storage barrel can be received by means of the butt joint barrel, and the processing materials are conveyed into a proper container through the discharging pipe.

The invention discloses an ultrasonic communication module applied to a swimming pool robot or a mowing robot, which comprises an ultrasonic signal generating / receiving / processing unit, an ultrasonic signal transceiving switching control unit, an ultrasonic modulation signal driving unit, an ultrasonic signal receiving and processing unit and an ultrasonic transceiver, and the output port of the ultrasonic signal generating / receiving / processing unit is connected with the input port of the ultrasonic signal transceiving switching control unit. According to the ultrasonic communication module applied to the swimming pool robot or the mowing robot, a signal can be transmitted to a signal base station or the robot more accurately and rapidly through the ultrasonic receiving and transmitting module, connection through a cable is not needed, and therefore remote signal transmission can be carried out, limitation to equipment is reduced, and the service life of the equipment is prolonged. And the production and manufacturing cost of the robot is reduced.

The utility model relates to the technical field of charging devices, and discloses a multi-point quick charging device, which is used for charging intelligent beads and comprises a base, three annular areas are nested on the top surface of the base and are respectively a wired charging area, a wireless charging area and a wired charging area from inside to outside, a plurality of electric contact points are arranged in the wired charging area, each electric contact point is used for charging a single intelligent bead, and the wireless charging area is used for charging a plurality of intelligent beads at the same time. The multi-point quick charging device can charge the whole intelligent bracelet or intelligent necklace without disassembling the intelligent beads, and is convenient to operate and better in practicability.

The application discloses an organic-alloy composite graphite felt and a preparation method and application thereof, and comprises the following steps: preparing pretreated graphite felt; preparing precursor graphite felt by reacting triphenylphosphine-copper hydride hexamer and silver trifluoromethanesulfonate; reacting the precursor graphite felt with ammonia water and an organic reducing agent solution, and performing multi-step freeze drying to obtain the organic-alloy composite graphite felt. By constructing a unique organic-alloy composite structure on the graphite felt substrate, the active site density of the electrode surface is effectively increased, and the activation energy of the vanadium ion redox reaction is greatly reduced. Through complexation reaction, the phosphorus-containing compound and the carboxylic acid-containing compound are combined on the graphite felt and V 2+ The electrostatic attraction forms an ion cluster body with vanadium ions as the core, hinders the V 2+ agglomeration to form a precipitate, inhibits the generation selectivity of the precipitate, improves the thermal stability of the electrolyte, and further improves the battery efficiency.

The present invention belongs to the field of laser processing, and discloses an optical system of an annular light spot, including a collimation unit, a phase modulation unit and a focusing unit arranged in sequence along the optical path, the phase modulation unit including at least one spiral phase plate located in the optical path; the laser beam can be added with a spiral phase factor to achieve phase modulation through the spiral phase plate located in the optical path, so that the energy distribution of the laser beam becomes annular distribution. Furthermore, the spiral phase plate can be set on a rotating axis, and the state of being located inside and outside the optical path can be switched by rotating around the rotating axis, so that a variable annular light spot can be achieved by switching each spiral phase plate. The present invention improves the components of the optical system and the coordination mode between the components, etc., and can obtain an annular light spot with energy distribution concentrated at the edge, larger diameter and longer focal depth. Furthermore, the size of the light spot is adjustable, and it is suitable for various laser processing fields such as laser cutting.

The application relates to an energy recovery method, an energy recovery device, a vehicle controller and a vehicle. The method comprises the following steps: firstly, acquiring road condition information of a target vehicle on a preset future running section; then, determining an electric quantity cooperative recovery strategy of the target vehicle based on the road condition information and a current driving mode of the target vehicle; and finally, recovering energy when the target vehicle drives on the future running section according to the electric quantity cooperative recovery strategy. The method can recover energy through different electric quantity cooperative recovery strategies according to different road condition information and current driving modes, so that the adaptability of the target vehicle during energy recovery is higher, and the energy utilization rate of the target vehicle is improved, and the energy conversion rate is higher.

The invention discloses a wind power-based hydrogen cooperative preparation method, which realizes the cooperation between power supply and hydrogen production of a power grid through the design of a cooperative hydrogen production device, and effectively converts the residual electric energy into the chemical energy of hydrogen under the condition of ensuring the power supply demand. The first electrolytic cell is surrounded by the second electrolytic cell, heat provided by the cooperative hydrogen production device for the second electrolytic cell can adjust the reaction condition of the second electrolytic cell and can also indirectly adjust the reaction condition for the first electrolytic cell, and electrolyte in the first electrolytic cell can also react in the second electrolytic cell through the heat capacity of the electrolyte. Heat preservation is provided so as to improve the energy conversion rate of residual electric energy. When the chemical reaction is in a stable state, the energy conversion efficiency is more stable than that in a non-stable state, and the efficiency of a downstream hydrogen precipitation process is improved, so that the overall working efficiency of the cooperative hydrogen production device is improved, and the overall energy consumption of the cooperative hydrogen production device is reduced.

The application discloses a compressed tail gas energy storage power generation system with synergistic tail gas dehydration treatment and application thereof. The system comprises a tail gas compression and conveying unit, a tail gas compression injection and extraction unit, an output gas condensation and dehydration unit and a multi-stage expansion power generation unit connected in sequence; the output gas condensation and dehydration unit comprises a first condensation and dehydration device and a second condensation and dehydration device; the multi-stage expansion power generation unit comprises a first expansion power generation device and a second expansion power generation device; a heat source inlet of the first condensation and dehydration device is connected with the tail gas compression injection and extraction unit, and a heat source outlet is connected with a heat source inlet of the second condensation and dehydration device; a cold source inlet of the first condensation and dehydration device is connected with the first expansion power generation device, and a cold source outlet is connected with the second expansion power generation device; a heat source outlet of the second condensation and dehydration device is connected with the first expansion power generation device, and a cold source inlet is connected with the second expansion power generation device. The system realizes the cyclic utilization of cold and heat energy, and improves the energy conversion rate and energy utilization rate.

The invention relates to a variable magnetic flux flywheel energy storage device and a variable magnetic flux flywheel energy storage device control method. The problem that in the prior art, standby loss exists in an inductor motor, and the energy conversion efficiency is remarkably reduced can be solved. The variable magnetic flux flywheel energy storage device comprises a rotor, a stator, a magnetic field adjusting coil and a permanent magnet ring, the stator, the magnetic field adjusting coil and the permanent magnet ring are arranged around a rotating shaft of the rotor in the circumferential direction of the rotor, the permanent magnet ring comprises permanent magnet parts and magnetic leakage parts which are alternately arranged in the circumferential direction, and an air gap is formed between the stator and the rotor. The magnetic field adjusting coil can generate excitation magnetic flux in a power-on state to preempt the space of the magnetic leakage part, the magnetic flux of the permanent magnet ring is completely introduced into the air gap to enhance the magnetic density of the air gap, and the magnetic flux of the permanent magnet part can flow through the magnetic leakage part from one end of the permanent magnet part and then return to the other end of the permanent magnet part in a power-off state of the magnetic field adjusting coil.