24results about How to "Improve working ability" patented technology

The invention relates to the technical field of multi-energy complementary power generation, and discloses an industrial steam supply peak shaving system and method coupling fused salt heat storage and solar energy, and the industrial steam supply peak shaving system comprises a coal-fired power generation system and an industrial steam supply system; in the heat storage mode, the boiler, the steam cooler and the condenser are sequentially connected; in the heat release mode, the high-pressure heater, the primary feed water heater and the low-pressure cylinder are sequentially connected through pipelines; and the feed pump, the secondary feed water heater and the boiler are connected in sequence. In the low ebb of the electrical load, solar energy is used for heating fused salt to store heat, and part of high-temperature steam is extracted from steam-water circulation of the improved coal-fired power generation system to store the heat in a heat storage device and does not enter a steam turbine for power generation; the power load output is adjusted by adjusting the thermal load output of the thermodynamic system in the power generation process, and load decoupling of the boiler and the steam turbine is achieved. And in the electrical load peak, the stored heat energy is released back to steam-water circulation, and the electrical load of the coal-fired power generation system is increased.

The invention provides a novel compressed air and hydrogen energy storage coupling system and a working method thereof. The system comprises an air and hydrogen coupled energy storage circulating system, an air and hydrogen coupled energy release circulating system and a waste heat multi-stage recycling heat storage circulating system. The energy storage cycle of the coupling system converts electric energy into hydrogen energy and pressure energy of air for storage, the energy release cycle converts the pressure energy and the hydrogen energy of the air into electric energy for release, the heat storage cycle system recycles and utilizes heat in the system operation process in a multi-stage mode through heat conduction oil and cooling water, and tight coupling of compressed air energy storage and hydrogen energy storage is achieved. According to the coupling system, cooling water and heat conduction oil are used as heat exchange media, heat energy generated in the energy storage process of the system is recycled in a multi-stage mode, the stored heat energy is used for heating air and hydrogen in the energy release process, and therefore the power capability of high-pressure air and hydrogen is improved. The system mixes the exhaust gas of the air expansion machine with oxygen, and the mixed gas is depressurized by the pressure stabilizing valve and then supplied to the hydrogen fuel cell, so that the oxygen concentration in the mixed gas is increased, and the power generation performance of the hydrogen fuel cell can be effectively improved.

According to the active thermal protection and thermal power generation integrated system based on the supercritical Brayton cycle, the two active cooling modes of convection cooling and sweating cooling are combined, and the energy utilization rate is increased; according to the gradient cooling structure of the nose cone front edge of the high-speed aircraft, the nose cone front edge is divided into a top end section, a middle section and a low end section, heat flows of the three sections are sequentially decreased, and porous metal matrix layers are arranged on the three sections of the nose cone front edge in a gradient mode according to the porosity; a two-stage regenerative-shunt recompression closed Brayton cycle power configuration obtained through calculation and optimization is adopted, and the characteristics of high energy recovery efficiency and compact system structure of the closed Brayton cycle are achieved; and a wing rib array is arranged in the heat exchange channel, so that a larger heat exchange surface area is provided.

The application discloses a geothermal energy adjustable power generation system based on carbon dioxide working medium, which comprises a power generation well, a temperature and pressure adjusting device connected through a pipeline, a gas-liquid heat exchange device connected with the temperature and pressure adjusting device at one end and connected with a steam superheating device at the other end, a heat supply device and a turbine arranged on the steam superheating device, a power generation device connected with the turbine, the power generation device connected with the gas-liquid heat exchange device through a pressure adjusting device, a plunger pump connected with a recharging well at one end and connected with the gas-liquid heat exchange device through a refrigeration device at the other end. The system can further heat the carbon dioxide working medium after being converted into steam, thereby improving the temperature and pressure of the steam and the power generation efficiency of the turbine. Moreover, the output of the heat supply device is adjusted, the rotating speed of the turbine and the output power of the power generation device are adjusted, the adjustability of the power generation capacity is realized, and the defect of the vacancy of the technology in China is solved.

The utility model relates to the technical field of boilers, in particular to a steam boiler with a superheater, which comprises a boiler body, a corrugated boiler furnace arranged inside the boiler body, a burner mounted at one end of the boiler body, a reversal chamber connected to one end of the corrugated boiler furnace, a threaded smoke tube connected to the upper portion of the reversal chamber, and a steam outlet connected to the lower portion of the boiler body. One end of the threaded smoke pipe is connected with a front smoke box, a superheater and a condenser are installed on the top of the boiler body, and one side of the superheater is connected to the front smoke box through a connecting flue. According to the steam boiler with the superheater, through the arrangement of the corrugated boiler furnace and the threaded smoke pipe, the residence time of smoke in the boiler is prolonged, the heat exchange area of the smoke in the boiler is increased, heat can be more sufficiently transmitted to water, and the heat energy utilization rate is increased. In addition, due to the introduction of the superheater, the temperature and the pressure of the steam are further improved, so that the steam has higher heat energy and power capability, and the requirements of various industrial and living fields on high-quality steam are met.

The embodiment of the invention relates to the field of fans, and provides a centrifugal fan and electronic equipment. An impeller of the centrifugal fan is of a structure comprising M groups of blades, each group of blades comprises a plurality of blades with different lengths, the inner diameters of the plurality of blades in each group of blades are the same, and when the impeller comprises a plurality of groups of blades (namely M is greater than 1), the arrangement modes of the groups of blades are the same. Therefore, the BPF of the impeller can be reduced, the weighting value corresponding to the BPF can be adjusted to be a fractional weighting value, the sound pressure level of the reduced BPF is also reduced, and the total noise of the centrifugal fan is also reduced.

The present invention discloses a compressed air energy storage system with an air storage tank heat recovery system and a control method thereof, including a compressed air storage tank, a cold storage tank and a heat storage tank, wherein the cold storage tank outlet is connected to the temperature drop control valve inlet, the heat storage tank outlet is connected to the temperature rise control valve inlet, the temperature drop control valve outlet intersects with the temperature rise control valve outlet, and is connected to the heat exchanger inlet of the compressed air storage tank, and the heat exchanger outlet of the compressed air storage tank is divided into two paths, one path is connected to the high-temperature outlet valve inlet, and the high-temperature outlet valve outlet is connected to the heat storage tank inlet; the other path is connected to the low-temperature outlet valve inlet, and the low-temperature outlet valve outlet is connected to the cold storage tank inlet. The present invention effectively improves the energy storage capacity of the compressed air energy storage in the compressed air energy storage stage; and effectively improves the work-doing capacity of the compressed air energy storage in the energy release stage, thereby improving the electric-to-electric conversion efficiency of the compressed air energy storage as a whole.

The plate-type half-wing blade impeller of the ventilation axial flow fan comprises a hub and a plurality of blades, and a central axis z is arranged at the axis of the hub; blade roots of the multiple blades are welded to the periphery of the hub around the central axis z, and an impeller structure is formed. Any blade is provided with a suction wall surface and a pressure wall surface, the suction wall surface is provided with a bulge structure and forms a suction surface bulge, the pressure wall surface is internally provided with a pressure surface inner wall, and the pressure wall surface is also provided with a pressure surface wing-shaped outer wall. The technical problems that in the prior art, a blade in an axial flow fan is low in operation efficiency and serious in energy loss, and the working efficiency of the blade is invisibly reduced are solved.

The invention relates to a low-temperature waste heat power generation system based on the heat permeation principle and concentration difference energy utilization, and belongs to the technical field of energy and waste heat and residual pressure recycling. The system consists of two mutually coupled cycles, namely a permeation side cold water cycle and a concentration difference energy power cycle; the permeation side cold water circulation comprises a hydrophobic membrane assembly, a hydraulic turbine, a cooling tower, a cooler, a cold water pressure pump and a cooling water pump; the concentration difference energy power cycle comprises a gas-liquid separator, an ejector, an absorption evaporator, a steam turbine, a water supply preheater I, a dilute solution pump, a water supply preheater II, a three-way regulating valve, a waste heat heater, a hydrophobic membrane assembly and a water supply pump. The heat permeation effect of the solution and the heat release effect of the concentrated solution in the absorption and dilution process are fully utilized, available energy of low-temperature waste heat is efficiently recycled, high-grade mechanical energy or electric energy is produced, and therefore efficient recycling of the low-temperature waste heat is achieved, and the efficiency of a waste heat power generation system is improved to the maximum extent.

The application discloses a fan blade and a fan. The blade is divided into multiple different structural sections from a blade root to a blade tip. Different structural sections have different airfoils. The airfoil cross sections of different structural sections from the blade root to the blade tip are the same as the airfoil cross sections taken in the wingspan direction. The blade is segmented in the length direction. Different sections of the blade are segmented according to different airfoils of owls. The bionics is simplified. The pressure difference between the upper surface and the lower surface of the fan blade is increased. The aerodynamic noise is reduced by using the airfoil principle of the owl. The structural sections have the same airfoil structure as the corresponding part of the owl airfoil. The structural sections have the same noise reduction effect as the part of the owl airfoil. The noise reduction and the cost are comprehensively optimized. The blade has good structural strength.

A double-air-inlet centrifugal fan comprises a volute and an impeller rotationally arranged in the volute, a first air inlet, a second air inlet and an air outlet are formed in a front cover plate and a rear cover plate of the volute respectively in the lateral direction, and the double-air-inlet centrifugal fan is characterized in that a center shaft is arranged in the volute; the front end and the rear end of the central shaft are respectively connected to a front cover plate and a rear cover plate of the volute; the impeller comprises an outer rotor, a blade assembly, a first connecting flow guide face and a second connecting flow guide face. The first connecting flow guide face and the second connecting flow guide face are arranged between the impeller assembly and the outer rotor, in this way, after double-face air inlet, turbulent vortexes formed at the air inlets in the two ends of the impeller can be eliminated, the working capacity of the impeller is improved, and noise caused by deterioration of the turbulent vortexes at the inlet of the impeller is further lowered.

The utility model discloses a molten polyamide hot melt adhesive heat preservation filtering device, and relates to the technical field of hot melt adhesives, the molten polyamide hot melt adhesive heat preservation filtering device comprises a filtering barrel, a rotating motor is fixed on the outer wall of the bottom of the filtering barrel, a transmission rod is inserted into the inner wall of the bottom of the filtering barrel, and a plurality of groups of clamping blocks are fixed on the outer wall of the transmission rod; the multiple sets of clamping blocks are evenly distributed on the outer wall of the transmission rod, a glue storage barrel is inserted into the inner wall of the filter barrel, multiple sets of clamping grooves are formed in the outer wall of the bottom of the glue storage barrel and evenly distributed in the outer wall of the bottom of the glue storage barrel, and multiple sets of filter holes are formed in the outer wall of the glue storage barrel. The multiple sets of filtering holes are evenly distributed in the outer wall of the glue storage barrel, a discharging opening is formed in the outer wall of the side face of the filtering barrel, and an auxiliary funnel is connected to the outer wall of the top of the filtering barrel in an inserted mode. The utility model can be provided.

The invention discloses a distributed fan-shaped reaction system as well as a use method and application thereof. The system comprises a cooling medium storage tank, a fan-shaped reactor, an electric control valve, a gas storage tank, a discharge valve, an electromagnetic valve and a thruster, the cooling medium storage tank is filled with a high-density liquid cooling working medium; the fan-shaped reactor is filled with a catalyst; the cooling medium storage tank, the fan-shaped reactor, the electric control valve and the gas storage tank are sequentially connected, the gas storage tank is provided with a first valve port and a second valve port, the first valve port is connected with the thruster through the electromagnetic valve, and the second valve port is communicated with the outside through the release valve. The distributed fan-shaped reaction system can be used for an active thermal protection system of a high-speed aircraft, the reactor can effectively absorb aerodynamic heat, the effective heat sink of a high-density liquid cooling working medium reaches 6.0 MJ / kg or above, the aerodynamic heat management capacity of the system is effectively improved, meanwhile, harmful aerodynamic heat is utilized to generate high-temperature and high-pressure small molecule gas to do work, the specific impulse reaches 150 s, and the service life of the system is prolonged. And heat-work conversion is realized.

The utility model discloses a compressed air energy storage system with electric auxiliary heating, which comprises an energy storage module, a corresponding compression module and a corresponding power generation module, the energy storage module comprises a gas storage container, a low-temperature storage tank, a high-temperature storage tank and an electric heating device, wherein the low-temperature storage tank and the high-temperature storage tank are matched with the gas storage container, and the electric heating device is arranged in the high-temperature storage tank. The compression module comprises a low-pressure compressor, a first heat exchanger, a high-pressure compressor and a second heat exchanger; the power generation module comprises a third heat exchanger, a high-pressure expansion machine, a fourth heat exchanger and a low-pressure expansion machine. According to the utility model, electricity and trough electricity which cannot be connected to the internet, such as abandoned wind and abandoned light, are utilized, energy is stored in the form of heat and compressed gas through the heat exchanger and the compressor, and energy is released in the expansion machine, so that the storage and conversion of electric energy are realized.

The invention discloses a deep peak regulation system provided with a steam ejector and a heat storage device and an operation method. The deep peak regulation system comprises a coal-fired power generation system, a heat storage loop and a steam ejector loop. When load rising wet state is converted into dry state, recirculating water separated by a boiler steam-water separator is heated through fused salt and mixed with main steam, meanwhile, high-pressure heater feed water is bypassed, steam extraction flow of a steam turbine is reduced, power capability of the steam turbine is rapidly increased, and the temperature of the feed water is reduced due to reduction of the recirculating water and the high-pressure heater steam extraction. The heat storage loop and the steam ejector loop are used for storing energy, water is heated, the enthalpy of an inlet of the water cooling wall is reduced, and rapid state transition is achieved; and when the load reduction dry state is converted into the wet state, the molten salt is heated by bypass reheat steam, the steam is recycled into the steam storage tank, and the output power of the unit is rapidly reduced. Through steam-water working medium circulation path reconstruction and fused salt / steam and other multi-medium energy storage cross-space-time regulation and control, ultra-low load dry-wet rapid state transition of the coal-fired unit is achieved, and the deep peak regulation capacity of the unit is improved.

The invention discloses an outdoor unit of an air conditioner, relates to the technical field of air conditioners, and aims to solve the problem that a two-stage centrifugal compressor in the prior art can cause reduction of power capability of a two-stage impeller. The air conditioner outdoor unit comprises a multi-stage compressor, the multi-stage compressor comprises a first-stage volute, a first-stage impeller, a second-stage compression assembly, a communicating pipe and a rotation eliminating structure, and the first-stage impeller is arranged in the first-stage volute; the first-stage volute and the second-stage compression assembly are communicated through the communicating pipe. The racemization structure comprises a supporting shaft and racemization blades; the plurality of racemization blades are arranged at intervals in the circumferential direction of the supporting shaft, and each racemization blade is provided with a connecting surface connected with the circumferential wall of the supporting shaft; the cross section is located on the connecting face and far away from the supporting shaft. The cross section comprises a datum line, a center line, a first sideline and a second sideline; the datum line is located on the side, close to the first sideline, of the center line and parallel to the axis of the supporting shaft. And the distance between the center line and the datum line is gradually reduced in the flowing direction of the refrigerant. The air conditioner outdoor unit is used for adjusting the temperature of air.

The invention discloses an oxygen-enriched turbine engine and a thermodynamic cycle method of the oxygen-enriched turbine engine. Comprising an oxygen-enriched gas generator, a turbine, a gas compressor, an oxygen-enriched gas auxiliary atomization injector and an active cooling combustion chamber, the oxygen-enriched gas generator comprises an oxidizing agent inlet, an oxidizing agent liquid collecting cavity, a catalytic bed, a reaction cavity located on the downstream of the catalytic bed, a fuel inlet and an oxygen-enriched gas outlet, and the fuel inlet and the oxygen-enriched gas outlet are located in the side wall face of the reaction cavity. A valve located on a fuel supply pipeline controls on-off of fuel, and two working modes of the oxygen-enriched fuel gas generator can be obtained, namely an oxidizing agent and fuel double-component oxygen-enriched combustion working mode and an oxidizing agent single-component catalytic decomposition working mode. The problems that rich oil circulation combined power is prone to coking and carbon deposition, combustion is not easy to organize, and the power capability of a turbine is limited are solved.

The application provides a peak shaving power generation system coupling molten salt heat storage and steam turbine supplementary steam, and relates to the technical field of thermal engineering. The system comprises a low-temperature molten salt tank, a molten salt heater, a high-temperature molten salt tank, a molten salt steam-water heat exchanger, a gas boiler, a steam turbine and a feedwater system. The molten salt heater receives low-temperature molten salt pumped into the low-temperature molten salt tank by a low-temperature molten salt pump during the low electricity consumption period, and heats the low-temperature molten salt by the heat of main steam provided by the gas boiler. The high-temperature molten salt tank receives and stores the high-temperature molten salt obtained by heating. The molten salt steam-water heat exchanger receives high-temperature molten salt pumped into the high-temperature molten salt tank by a high-temperature molten salt pump during the high electricity consumption period, and transfers the heat energy of the high-temperature molten salt to high-pressure feedwater from the feedwater system to generate superheated steam. Part of the superheated steam is sent into a main steam main pipe connected with the gas boiler. The application can effectively improve the steam turbine power generation efficiency, realizes efficient utilization of heat energy and flexible adjustment of power grid load.

The application relates to the technical field of impeller devices, in particular to a novel welded high-speed dust collector moving vane, which comprises an impeller body, the impeller body is composed of a lower disc piece, an upper disc piece and a plurality of blades, the lower disc piece and the upper disc piece are connected through the blades, the blades are connected with the lower disc piece through welding, one end of the blade away from the lower disc piece is connected with the upper disc piece through welding, the blade annular array is between the lower disc piece and the upper disc piece, the upper disc piece and the lower disc piece are coaxially arranged, the upper disc piece and the lower disc piece are connected through welding, the connecting effect is enhanced, the working loss is reduced, the fatigue strength of the impeller is enhanced, and meanwhile, the service life of the impeller is also enhanced. The application has the effect of improving the efficiency of the impeller in the use process.

The invention provides a turbocharged heat and power cogeneration device which comprises a supercharging integrated power generation system, the supercharging integrated power generation system compresses gas and divides the compressed gas into two paths, the first path of compressed gas enters a combustion system after being heated by a volute, and the second path of compressed gas enters the combustion system after being cooled by a first heat exchanger; after fuel oil is combusted in the combustion system, exhausted gas enters the volute to push the impeller to do work and finally enters the second heat exchanger; the electric water pump distributes a heat transfer medium in the heated component to the first heat exchanger and the second heat exchanger; the fuel pump distributes fuel to the second heat exchanger and a fuel injector of the combustion system. According to the turbocharged combined heat and power device, fuel is heated through exhaust waste heat of the combustor, the atomization degree of the fuel in the combustion system is improved, and then the working efficiency of the combined heat and power device is improved.

The invention discloses a catalytic reforming reactor as well as a use method and application thereof. The reactor comprises at least one fan-shaped reactor, the fan-shaped reactor comprises an arc-shaped wall, a straight wall and a gas collection chamber which are fixedly connected end to end in sequence, and an outlet of the gas collection chamber is communicated with the outside; the arc-shaped wall is provided with a vaporization cavity, and a feed port of the vaporization cavity is connected with a cooling medium storage tank through a cooling medium pipeline; and a fan-shaped catalyst bed is arranged in a space defined by the arc-shaped wall, the straight wall and the gas collection chamber, and is filled with a catalyst. Under the action of aerodynamic heat of a high-speed aircraft, the catalytic reforming reactor can utilize high-temperature aerodynamic heat to catalyze and decompose a cooling medium to generate high-pressure fuel gas small molecules, so that the aerodynamic heat management capability of the system is effectively improved, and meanwhile, the generated high-temperature and high-pressure small molecule gas can also be used for doing work to realize heat-work conversion.

The invention discloses a liquid compressed carbon dioxide energy storage system capable of recycling waste heat and an operation method, and belongs to the technical field of energy storage. The system comprises a liquid carbon dioxide storage unit, a cold storage unit, a compression unit, an expansion unit, a heat storage unit and a waste heat utilization unit which are connected through pipelines. The cold storage unit is used for storing and releasing cold energy; the compression unit is used for realizing step-by-step pressurization of carbon dioxide, and generated compression heat is stored by the heat storage unit; the expansion unit preheats high-pressure carbon dioxide through the stored compression heat and then expands the high-pressure carbon dioxide to do work; the waste heat utilization unit is arranged in a system circulating water path and used for recycling waste heat in the system. By additionally arranging the waste heat recovery device, compression heat and waste heat in the system are efficiently recovered and used for preheating carbon dioxide before acting, the acting capacity of the carbon dioxide is remarkably improved, the circulating efficiency and the energy storage density of the system are improved, and meanwhile the operation cost is reduced.

The utility model provides a kind of impeller and the centrifugal fan comprising it, impeller includes front disc, rear disc and blade, blade is connected in front disc and rear disc, blade is cut from the export end of blade towards the import end of blade along the chord length direction of blade near front disc, to form the transition section along the axial direction of impeller close to front disc and main blade section close to rear disc, along chord length direction, transition section is partially connected with main blade section, the export angle of transition section is greater than the export angle of main blade section. By cutting blade to form transition section and main blade section, and the export angle of transition section is set to be greater than the export angle of main blade section, the flow rate of airflow in transition zone is increased, to avoid forming larger vortex zone at the wall surface of volute close to front disc, so as to improve the work capacity of transition section, and then improve the work capacity of impeller as a whole, improve the efficiency of centrifugal fan with the impeller.

The utility model relates to an adjustable unmanned ship sensor rapid installation device which is formed by integrally installing a bottom frame, a supporting frame and a top frame, and the bottom frame comprises a bottom plate and bottom supporting legs; the supporting frame takes a supporting pipe vertically fixed on the bottom plate as a main body, a rotatable transmission pipe is arranged in the supporting frame, the upper end extends out of the supporting pipe, and the lower end penetrates through the bottom plate; the top frame is connected with the transmission pipe through a connecting column, the column bottom is provided with an inserting groove in butt joint with the transmission pipe, and the middle is provided with an outer lock hole matched and locked with an inner lock hole of the supporting pipe. A plurality of bearing beams are fixed on the periphery of the connecting column, and each beam is provided with an adjusting groove and a mounting seat with a bolt hole; besides, the device is provided with a rotating power mechanism, the power output end of the rotating power mechanism is in transmission connection with the supporting pipe, the horizontal positions of the bearing beam and the sensor are adjusted by driving a transmission pipe to rotate, secondary fine adjustment of the position of the sensor can be achieved by combining the design of an adjusting groove of the bearing beam, and the requirements of different monitoring scenes are met. Compared with a traditional fixed sensor, the design is more flexible and practical.