1158 results about "Accumulator (energy)" patented technology

The invention provides a reproduction lifting and diving test device, and belongs to the technical field of mechanical control. The problems that a guide rail needs to bear large lateral force for achieving the working conditions of large load mass, large reproduction acceleration and long stroke of existing equipment, and particularly when the stroke is large, the lateral force enables the guide rail to deform greatly are solved. The device comprises lifting actuator assemblies, a cross beam assembly, a motion platform, stand columns, a base and a moment balance assembly, the stand columns are installed at the four corners of the lower end face of the cross beam assembly, the bottoms of the stand columns are connected with the base, the motion platform is installed on the stand columns in a sliding mode, and the four lifting actuator assemblies penetrate through the cross beam assembly to be connected with the motion platform; a moment balance assembly is installed at the joint of the motion platform and the stand column, and an energy accumulator assembly used for supplying energy to the lifting actuator assembly is installed on the cross beam assembly. The device is mainly used for testing the working conditions of large load mass, large reproduction acceleration and long stroke.

The invention relates to an energy accumulator durability test method and system, and the system comprises an extreme working condition simulation module which can achieve high-voltage, wide-temperature-range and high-frequency dynamic loading; the multi-sensor monitoring network integrates a fiber bragg grating strain sensor, a three-axis acceleration sensor and an acoustic emission sensor to realize collaborative monitoring of strain, vibration and microcracks; the intelligent control and energy recovery module is combined with a fuzzy PID and reinforcement learning algorithm, a magnetorheological fluid generator and a super capacitor bank, so that the control precision and the energy utilization rate are improved; and the data analysis and life evaluation platform accurately predicts the residual life by using an improved Bayesian network model and a real-time health index calculation module. According to the test method, a loading mode is dynamically adjusted through a real-time health index, an energy recovery strategy is optimized, and life early warning is triggered. The invention breaks through the limitation of the traditional test and provides an integrated solution.

The invention provides a hydraulic control system of an asymmetric hydraulic cylinder, and relates to the technical field of hydraulic control, the hydraulic control system comprises a bidirectional hydraulic pump, a hydraulic motor and an energy accumulator, the bidirectional hydraulic pump is in transmission connection with a first servo motor, and a first oil port and a second oil port of the bidirectional hydraulic pump are connected with a rod cavity and a rodless cavity through a first oil way and a second oil way respectively; a first one-way valve is arranged between the second oil port and the rodless cavity; the hydraulic motor is in transmission connection with the generator which is connected with the electric energy storage unit. The hydraulic motor is connected with the first one-way valve in parallel; the energy accumulator communicates with the first oil way and the second oil way through a second one-way valve and a third one-way valve correspondingly. Four-quadrant seamless switching can be achieved, the structure is simpler, the complexity of a pipeline in a hydraulic system is remarkably reduced, energy collection can be conducted on oil discharged by a rodless cavity, and energy consumption is further reduced.

The invention discloses an energy storage unit, an energy accumulator, an energy storage transmission device and a photovoltaic tracking system, and the energy storage unit comprises an elastic part; an elastic member; the fixing piece is connected with one end of the elastic piece; the driving part is used for being connected with an external load, and the driving part is rotationally matched with the fixing part; the driven piece is connected with the other end of the elastic piece, the driven piece is rotationally matched with the fixed piece, and a switching part is arranged on the driven piece; the first combination part is arranged on the driving part, and the first combination part can be matched with the switching part; the second combination part is arranged on the fixing piece, and the second combination part can be matched with the switching part; in an initial state, the switching part is matched with the first combination part; the conversion part is used for being matched with the second combination part to achieve force storage or energy release of the elastic piece, or the conversion part is matched with the first combination part to achieve deformation of the elastic piece. The device has the advantages of being safe, reliable, high in automation degree, high in practicability, economical and environmentally friendly.

The invention relates to the technical field of data processing, in particular to a PSU pressurization module and a control method thereof, and the PSU pressurization module comprises a data acquisition unit, a dynamic compensation unit, a cooperative control unit, a pressure closed-loop unit and an emergency response unit. The data acquisition unit is used for acquiring an energy accumulator pressure value, an environment temperature value and a braking command signal in real time; the dynamic compensation unit generates a viscosity compensation coefficient through a temperature and viscosity mapping table, and compares the viscosity compensation coefficient with the pressure value to generate a pressure deviation value and a deviation trigger threshold value; the cooperative control unit activates the hydraulic pump based on the pressure deviation value and adjusts the start-stop frequency in combination with the viscosity compensation coefficient; the pressure closed-loop unit adopts double electromagnetic valves to alternately release and supplement oil to inhibit pressure fluctuation; the emergency response unit activates the hydraulic pump and opens the bypass electromagnetic valve to output redundant flow during emergency braking, the technical limitation of an existing hydraulic system in an extreme environment is broken through, and the braking reliability is improved.

The invention relates to a flowing medium packed bed energy storage system which comprises a storage tank for storing flowing media, the storage tank is connected with a flowing medium loop through a stop valve, the flowing medium loop comprises a flowing medium pump, a heater, a heat accumulator module and a heat exchanger which are sequentially connected through a pipeline, and the flowing medium pump provides power for flowing medium circulation; the heat accumulator module is composed of a plurality of heat accumulator units, and each heat accumulator unit is filled with a solid material. In the heat storage mode, the heater heats the flowing medium from the low-temperature state to the high-temperature state, and then the solid materials filled in the heat storage body units are heated through the heat storage body units. In the heat release mode, the flowing medium is heated from a low-temperature state to a high-temperature state after flowing through the high-temperature solid material, and then heat is released to an external system through the heat exchanger. Efficient heat exchange between a flowing medium and a solid material is achieved through the modular solid filling design, so that the heat storage efficiency of the whole system is improved, and the adaptability and flexibility of the system are enhanced.

The invention discloses a water energy accumulator and ground source heat pump combined control method, relates to the technical field of building environment and equipment engineering, accurately captures a time sequence change rule of a building cold load based on the load prediction capability of a time convolution network, overcomes the defect that a traditional method is insufficient in response to sudden fluctuation, and improves the control efficiency. The system can plan an energy storage strategy in advance; an electricity price-load change rate sensitivity index is introduced, and through an adaptive weight adjustment mechanism, economic operation and load tracking requirements are dynamically balanced, so that strategy stiffness caused by fixed priorities is avoided, and the utilization efficiency of time-of-use electricity price signals is remarkably improved; according to the joint optimization design of the mixed integer linear programming model, the equipment operation constraint and the cost target are comprehensively considered, the collaborative decision of the energy accumulator charging and discharging strategy and the heat pump frequency setting is realized, and the direct energy supply dependence in the midday high electricity price period is effectively reduced.

The invention relates to an ocean temperature difference energy power generation efficiency prediction method and device, and belongs to the technical field of ocean energy development and prediction. Through the self-learning capability of the PINN, the relation between network input (energy accumulator pressure, motor rotating speed, current flowing through a load resistor and time) and network output (system efficiency) is established, and the prediction of the ocean temperature difference energy power generation efficiency is realized. According to the method, the PINN model is used for embedding physical constraints, so that the physical reasonability can still be ensured under the condition of insufficient data, transfer learning except conditions used in a small training data set and training is remarkably improved, high-precision rapid prediction can be realized, and the reliability is improved.

The invention belongs to the field of energy accumulators, and provides a high-sealing-performance diaphragm type energy accumulator which comprises a lower shell, a middle shell and an upper shell, the middle shell is in threaded connection to the top of the lower shell, the upper shell is in threaded connection to the top of the middle shell, a main diaphragm is installed in the lower shell, and the main diaphragm is in threaded connection to the top of the middle shell. A standby diaphragm is installed in the middle shell, and a partition plate is further installed in the middle shell. The partition plate and the oil hole are arranged between the main diaphragm and the standby diaphragm, the isolation mechanism is used for shielding the oil hole, the standby diaphragm does not work at the beginning of work, hydraulic oil in the main oil cavity can flow into the main air pressure cavity when the main diaphragm reaches the fatigue limit and is damaged, and therefore the isolation mechanism automatically relieves shielding of the oil hole, and the working efficiency is improved. At the moment, the standby diaphragm can replace the main diaphragm to work, so that the service life of the energy accumulator is doubled, and the situation that a hydraulic system generates major accidents is avoided.

The invention discloses a low-pressure cylinder zero-output coupling steam heat accumulator which comprises an intermediate-pressure cylinder connected with a reheating hot section of a steam turbine; the low-pressure cylinder is connected with the output end of the medium-pressure cylinder; a cooling steam source is also connected; the generator is connected with the output end of the medium-pressure cylinder and / or the low-pressure cylinder to generate electric energy; the condenser is connected with the output end of the low-pressure cylinder; the condensate pump is connected with the output end of the condenser and further connected with the output end of the intermediate-pressure cylinder. The steam heat accumulator is connected with the output end of the medium-pressure cylinder; and the regenerative heating mechanism is respectively connected with the output ends of the steam heat accumulator and the intermediate pressure cylinder and is also connected with the input end of the condensate pump. In the deep peak regulation period of the unit, cooling steam enters the low-pressure cylinder, output of the unit can be reduced, part of heat is released through the steam heat accumulator, return water is heated and output through the regenerative heating mechanism, and deep peak regulation and thermoelectric decoupling of the unit are achieved.

The invention discloses a refrigeration house refrigerating system, a defrosting control method and device of the refrigeration house refrigerating system and a storage medium. The system comprises a medium-temperature heat accumulator filled with a first phase change material; the low-temperature heat accumulator is connected with the medium-temperature heat accumulator and is internally filled with a second phase-change material of which the phase-change temperature is lower than that of the first phase-change material; an air cooler; the evaporator is respectively connected with the air cooler and the low-temperature heat accumulator through a throttle valve; the defrosting heater abuts against the surface of the evaporator and is connected with the medium-temperature heat accumulator and the low-temperature heat accumulator; one end of the compressor is connected with a heat exchange pipeline of the medium-temperature heat accumulator and the air cooler through a three-way reversing valve, the other end of the compressor is connected with the evaporator, and the low-temperature heat accumulator, the medium-temperature heat accumulator, the solution pump and the defrosting heater sequentially form a loop. By means of the two heat accumulators made of the phase change materials with different phase change temperatures, wide-temperature-range exhaust waste heat of the compressor is absorbed, meanwhile, the evaporator is defrosted in a graded mode through the two stages of heat accumulators, and the energy consumption of the system is reduced.

The invention discloses an integrated parking heater heat management system, which belongs to the technical field of heater heat management and is provided with a parking heater combustion loop, a tail gas waste heat recovery loop, a cooling heat energy recovery loop, a heat accumulator loop and other heat source loops, and oil inlet and fan air inlet are adjusted in real time according to multi-block temperature and preset temperature. Fuel loss is effectively reduced while operation is intelligent, various heat sources such as a heat storage loop, a parking heater combustion loop, a tail gas waste heat recovery loop and a cooling heat energy recovery loop can be integrated, comprehensive recycling and efficient distribution of heat energy are achieved, the operation cost is reduced, and the heat energy utilization rate is increased.

The invention belongs to the technical field of generator control, and particularly relates to a starting and charging control method for a parking generator system, which comprises the following steps: a generator performs self-starting or hand-pulling starting according to the voltage of a storage battery; when the generator is self-started, the stepping motor opens the accelerator and adjusts the air door and the accelerator according to the environment temperature to complete self-starting; when the generator is started by hand pulling, ignition action is carried out, after the generator is ignited, the stepping motor gradually accelerates the opening speed of the air door according to the environment temperature from low to high, and starting is completed; after the generator is started, entering a constant-current charging mode to charge an accumulator jar, converting into a constant-voltage charging mode after the voltage of the accumulator jar exceeds a preset voltage, and automatically closing the generator when the vehicle is started or the charging current is lower than a preset current in the charging process; by means of the method, the parking generator can be rapidly and automatically started, and more energy is saved in the charging process.

Device for providing electrical energy, comprising an electrical energy storage device (14; 14') for storing electrical energy, in particular a traction accumulator of an electric, hybrid or fuel cell vehicle, and a fuel cell arrangement (74; 74') for generating electrical energy, wherein the electrical energy storage device (14; 14') is thermally coupled or can be coupled to the fuel cell arrangement (74, 74') by means of a heat transfer arrangement, wherein the device has a first fluid circuit (12, 70; 94, 112) to which the electrical energy storage device (14; 14') is assigned, wherein the first fluid circuit (12, 70; 94, 112) is permeable by a first fluid, wherein the first fluid circuit (12) is thermally coupled to the fuel cell arrangement (74; 74') via at least one first heat exchanger (18; 18'), wherein the device has a second fluid circuit (12, 70; 94,112) has the fuel cell (74;74') is assigned, wherein the second fluid circuit (12, 70; 94, 112) is permeable to a second fluid, wherein the device has a heat exchanger (18, 18') with which heat transfer between the first fluid and the second fluid can be generated, wherein the device has control devices, wherein the fluid circuits (12, 70; 94, 112) are each a sub-circuit of a fluid guide system (12, 70; 94, 112) with several sub-circuits, the volume flows of which can be controlled by the control devices, wherein a heating device (32, 32') of the fuel cell (74; 74') and the electrical energy storage device (14; 14') are arranged in the first fluid guide system (12, 70; 94, 112) and the fuel cell (74; 74') is arranged in the second fluid guide system (12, 70; 94, 112), thereby characterized in that the heating device (32, 32') is designed as a burner which is operated with hydrogen.;

The invention relates to the technical field of high-altitude wind power generation, in particular to an energy storage device suitable for high-altitude wind power generation, a working method and a system. The energy storage device comprises a track, a movable sliding block is arranged in the track, one end of the sliding block is connected with a motor of the high-altitude wind power generation system through a cable, and the other end of the sliding block is connected with an aerial assembly of the high-altitude wind power generation system through a cable; the energy accumulator comprises a fixed end and a movable end, the fixed end is fixed on the track, and the movable end is fixed on the sliding block; when the aerial assembly does work upwards, the energy accumulator accumulates energy; the energy accumulator releases energy when the aerial assembly is retracted downward. According to the technical scheme, the energy accumulators are arranged on the rails, energy can be stored when the aerial assemblies do work upwards, the stored energy can be released when the aerial assemblies are recycled downwards, and therefore the recycling energy consumption of the aerial assemblies can be greatly reduced.

The invention provides a multidisciplinary simulation analysis method and system for operation characteristics of a ship lubricating oil system, and belongs to the technical field of ship simulation, and the method comprises the steps: setting working parameters of the lubricating oil system, and setting interlocking control logic of the lubricating oil system; constructing an energy accumulator flow equation; the energy accumulator flow equation is constructed based on the relation between the instantaneous pressure and the instantaneous flow after the energy accumulator is started, and the relation is determined based on the fluid resistance characteristic of the lubricating oil system, the normal working pressure of the system and the normal working flow of the system; and the working parameters, the interlocking control logic and the energy accumulator flow equation are imported into simulation software, and a lubricating oil system simulation model is established. According to the method, the operating characteristics of the system are analyzed by setting the working parameters of the lubricating oil system, the interlocking control logic and the energy accumulator flow equation constructed based on the relationship between the instantaneous pressure and the flow and combining the simulation model, so that the accuracy of analyzing the influence of the pressure pulsation on the lubricating oil system is improved.

The utility model relates to the technical field of energy accumulators, in particular to an energy accumulator controllable control system for a hydraulic machine, which comprises a control unit, a hydraulic device, an energy accumulator, a motor oil pump set and a sensor, and the control unit comprises a PLC (programmable logic controller), an energy storage controller, a fault diagnosis device and a monitoring device. The hydraulic device comprises a sliding block / oil cylinder, an oil tank, a control valve, a return cylinder, a speed / displacement detection device and a cartridge valve.

The invention discloses a modular hydraulic energy recovery device and a recovery method thereof, and relates to the technical field of hydraulic energy recovery. A high-pressure pipeline of a hydraulic system is connected with the three functional modules in parallel through a multi-way pipe fitting, and a modular energy recovery system is formed. The high-pressure module adopts the combination of a leather bag type energy accumulator and a throttle valve, energy absorption is carried out aiming at the working conditions of high system pressure and slow change, and the pressure is stably released by utilizing the elastic energy storage characteristic of the energy accumulator; the high-frequency module is provided with a diaphragm type energy accumulator which is high in response speed, and instantaneous pressure fluctuation is rapidly restrained by dynamically adjusting the opening degree of a throttling valve; the power generation module drives a power generator through a hydraulic motor, and transforms the over-limit energy stored by the energy accumulator into electric energy for storage. The main control module monitors the system pressure and the change rate thereof in real time, dynamically switches the working states of the modules according to preset logic, and introduces a machine learning algorithm to optimize a threshold decision, so that the system adapts to complex working conditions.

The invention discloses a double-energy-storage type hydro-pneumatic spring integrated damping suspension hydraulic cylinder and a vehicle. The double-energy-storage type hydro-pneumatic spring integrated damping suspension hydraulic cylinder comprises a mounting cylinder bottom, a suspension cylinder and an energy accumulator. An oil passing channel is formed in the mounting cylinder bottom, and a first communicating opening and two second communicating openings are formed in the mounting cylinder bottom. The suspension cylinder and the energy accumulators are both fixedly installed on the installation cylinder bottom, the two sets of energy accumulators are arranged and located on the two sides of the suspension cylinder in the radial direction respectively, the suspension cylinder and the energy accumulators are communicated with the oil passing channel through the first communication opening and the second communication opening respectively, and the suspension cylinder and the energy accumulators are communicated through the oil passing channel. The problem of pressure loss caused by a lengthy oil way of a traditional suspension system is effectively solved, and internal transmission of the oil way is achieved through integrated installation of the cylinder bottom. The double energy accumulators are symmetrically arranged to form a redundant pressure compensation mechanism, and the pressure stability of the system under the continuous vibration working condition is ensured. The overall structure is compact in design, occupied space is reduced, and the requirement for miniaturization of a suspension system of a special vehicle is met.

The invention discloses a surface scraping type energy storage heat exchanger and a working method thereof, and relates to the technical field of energy accumulators, the surface scraping type energy storage heat exchanger comprises a heat exchanger body and a heat exchanger support, and the heat exchanger body comprises a heat exchanger outer shell, a heat exchanger inner shell, a heat production device, a stirring device, a surface scraping device, a pressurizing device and a protective net; a heat exchange sealed space is formed between the heat exchanger outer shell and the heat exchanger inner shell, a heat transfer working medium inlet and a heat transfer working medium outlet are formed in the heat exchanger outer shell, and a heat conduction medium and a phase change material are contained in the heat exchanger inner shell. The pressurizing device is used for pressing the phase-change material in the solid phase, and the surface scraping device is used for scraping the phase-change material which is attached to the inner wall of the heat exchanger inner shell and becomes the solid phase. The heat transfer efficiency during heat absorption and heat release can be improved, the energy storage efficiency is improved, and the actual use requirement that a heat source is a solid heat flow boundary with a fixed heat load and a fluid temperature boundary with a fixed temperature can be met.

The utility model relates to the technical field of pneumatic control systems, in particular to a single-action pneumatic PST system, which comprises a pneumatic actuating mechanism, a cam valve and an explosion-proof junction box, a valve position transponder is arranged at the front end of the pneumatic actuating mechanism, one end of the cam valve is communicated with a filtering pressure reducing valve, one end of the filtering pressure reducing valve is communicated with a safety valve, and the other end of the filtering pressure reducing valve is communicated with an explosion-proof junction box. And one end of the explosion-proof junction box is connected with a first electromagnetic valve and a second electromagnetic valve respectively. According to the improved single-action pneumatic PST system, the first electromagnetic valve, the hand-operated direction valve and the second electromagnetic valve are adopted, and when the single-action pneumatic PST system is used, flexible control can be conducted when the single-action pneumatic PST system faces complex working conditions and different operation requirements; the explosion-proof junction box and the energy accumulator are adopted, when the single-action pneumatic PST system is used, the electrical safety of the system in a dangerous environment can be guaranteed, meanwhile, the pressure of the system can be kept within a relatively stable range, and the stability of the system during use is improved.

The invention relates to the field of valves, and discloses a multi-channel fluid pressure stabilizing control valve which comprises a pressure stabilizing valve composed of an upper valve body and a lower valve body, the lower valve body is installed at the bottom of the upper valve body, the lower valve body is provided with an input pipe and a plurality of output pipes, a cavity is formed in the lower valve body, the output pipes are communicated with the cavity, and the multi-channel fluid pressure stabilizing control valve further comprises an energy storage groove formed in the top of the lower valve body; the damping holes are formed in the bottom wall of the energy storage groove, the number of the damping holes is the same as that of the output pipes, and the energy storage groove communicates with the cavity through the damping holes. According to the invention, through a mode of combining mechanical feedback and multi-stage energy storage compensation, high-precision pressure stabilization is realized, a diaphragm senses the pressure change of a cavity in real time, a linkage pressure regulating seat regulates the opening degree of a liquid inlet channel, a passive energy accumulator and an active pre-charging energy accumulator work cooperatively, the pressure is quickly absorbed or supplemented, the fluctuation range of the inlet pressure of other channels can be effectively controlled, and the stability of the system is improved. And the pressure of each channel is stabilized at a set value.

The invention relates to the field of battery thermal safety management, in particular to an all-weather thermal management system and method for an energy storage power station with a cross-seasonal energy storage device. Through combined operation of the refrigerant circulation loop, the circulating water loop, the switch valve group, the multi-cavity heat exchanger, the water storage tank, the energy accumulator, the photovoltaic heat collector and the resistance wire heater, heating or cooling of the battery module in the prefabricated cabin of the energy storage power station is achieved. According to the invention, the requirements of battery heating / cooling and temperature consistency control under all-weather working conditions are effectively ensured; meanwhile, cross-seasonal energy storage and waste heat utilization can be achieved, energy loss is avoided, the energy utilization efficiency is improved, and the purpose of reducing heat management energy consumption is achieved.

The invention provides a coal mill oil way plate and a reversing control device thereof, and relates to the technical field of coal mill oil way plates, the coal mill oil way plate comprises a valve block body, a proportional overflow valve, a duplex electromagnetic reversing valve group, a working oil way group, two hydraulic control one-way valve groups, two energy accumulators, a safety overflow valve, an online particle counter and a spiral cooling flow channel. The redundancy design of the duplex electromagnetic directional valve group improves the reliability of the system, so that the system can still be operated when a single valve fails, the hydraulic control one-way valve group realizes mechanical locking of an oil cylinder and can prevent a grinding roller from falling off during power failure, and the energy accumulator is connected with a working oil duct through a connector to absorb pressure impact and compensate leakage, so that the stability of loading pressure is maintained, and the reliability of the system is improved. The on-line particle counter gives an early warning of oil pollution in real time, hydraulic faults can be reduced, the spiral cooling flow channel is matched with the semiconductor temperature control piece to adjust the oil temperature, and the problem of pressure drift caused by oil viscosity fluctuation under high and low temperature working conditions is solved.

The invention relates to a self-sealing energy accumulator inflation valve for a high-pressure environment and a using method of the self-sealing energy accumulator inflation valve, and belongs to the technical field of inflation valves. The inflation valve comprises a valve body, a first one-way valve and a second one-way valve, an inflation hole, a first placement hole, a first vent hole, a through hole, a second vent hole, a second placement hole and an air inlet hole are sequentially formed in the valve body in a penetrating mode, and the first one-way valve and the second one-way valve are arranged in the first placement hole and the second placement hole respectively. The two opposite one-way valve structures are matched with a mechanical mechanism to open the inflation inlet one-way valve for inflation, external high-pressure fluid is prevented from invading by means of the inflation inlet one-way valve after inflation is completed, and the safety and reliability of the energy accumulator system in the high-pressure fluid environment are improved.

The present disclosure relates to a primary frequency modulation method for a hydraulic full-period frequency modulation new energy generator set and a generator set therefor, belonging to the technical field of frequency modulation for hydraulic new energy generator sets. The method includes determining whether a grid frequency is within a rated frequency threshold. When the grid frequency deviates from the rated frequency threshold, the stability of the grid frequency is controlled by adjusting a rotor kinetic energy of a blade and an opening of the proportional throttle valve, energy storage and supply by using a bladder accumulator, and hydraulic energy storage and supply. The hydraulic energy storage and supply of the present disclosure can store more energy and provide a longer frequency modulation period. By employing a combined wind-storage approach for comprehensive frequency modulation control, and an anti-interference capability of the frequency of the entire hydraulic new energy generator set can be enhanced.

A method of inflating a bellows accumulator of a vehicle suspension system includes providing a housing with an accumulator port and an inflation port and inserting a bellows assembly within the housing. The bellows assembly includes an annular bellows wall at least partially defining a variable volume plenum. The bellows assembly is axially extendable between a retracted position and a fully extended position. The air chamber is in fluid communication with the inflation inlet. An energy storage chamber between the housing and the bellows assembly is in fluid communication with the accumulator port. The method further includes evacuating the energy storage chamber when the bellows assembly is not in the fully extended position such that a pressure less than atmospheric pressure is obtained within the energy storage chamber, and supplying pressurized gas to the inflation port.

The utility model relates to a wind power generation system for marine ship navigation, which comprises a vertical fan, a constant-pressure oil pump, an oil storage tank, a hydraulic distributor, a hydraulic motor, a generator and a hydraulic accumulator, a blade shaft of the vertical fan is provided with a rotating speed sensor and connected with the constant-pressure oil pump, and the rotating speed sensor is connected with the generator. The constant-pressure oil pump is connected with an oil storage tank, the oil storage tank is provided with a hydraulic distributor, the hydraulic distributor is connected with a plurality of generator sets, and electric energy generated by each generator set is merged into the ship micro-grid combined cabinet. According to the utility model, liquid energy with rated pressure is respectively output to each generator set through the liquid energy distributor, 380V and 220V alternating current and 48V direct current can be obtained, each path of liquid energy has rated liquid energy for the generator set with hydraulic power to stably generate electricity, the generated electric energy is combined and input into a ship-ship micro-grid, the wind energy is comprehensively absorbed, and the conversion rate of the wind energy reaches more than 60%.

The utility model relates to an air conditioning system. The air conditioning system comprises a refrigerant circulation loop and a liquid storage device. The liquid storage device is arranged on an indoor heat exchange branch formed by connecting the indoor heat exchanger and the indoor throttling component in series, and the liquid storage device is arranged between the refrigerant heat dissipation module and the indoor throttling component; and when the operation state of the air conditioner system meets the preset condition, a refrigerant is injected into the liquid storage device, and when the operation state of the air conditioner system does not meet the preset condition, the refrigerant in the liquid storage device is discharged into the indoor unit with the starting-up requirement. According to the embodiment of the invention, the refrigerant can be injected into the liquid storage device when the operation state of the air conditioning system meets the preset condition, and the refrigerant in the liquid storage device is discharged into the indoor unit with the start-up requirement when the operation state of the air conditioning system does not meet the preset condition, so that the flowability of the refrigerant is improved; the energy efficiency attenuation of the air conditioning system during operation in the medium-low load state is reduced, and the energy efficiency of the air conditioning system is improved.

In a method for analyzing an electrical energy storage device, in particular an accumulator or a battery, the energy storage device is electrically connected to at least one consumer and to at least one electrical energy source in an electrical energy supply system. An electrical energy flow into or out of the energy storage device is directly or indirectly measured using a measuring unit, in particular a smart meter, and at least one energy storage device parameter is iteratively determined on the basis of recorded values of the measured energy flow. The energy flow is expressed by the unit energy per time, and an energy profile of the energy flowing into the energy storage device and extracted from the energy storage device is identified from the energy flow by integrating the energy flow over time. The at least one parameter is determined on the basis of the energy profile.