94 results about "Dual cycle" patented technology

This invention relates to a method and system for improving the performance of a vapor compression refrigeration cycle. It utilizes two cycles: Cycle A gains heat from a heat source, releases heat to a heat sink, and stores heat using a heat carrier; Cycle B does not gain heat from a heat source but gains heat through the cooling of the heat carrier and releases heat to the heat sink. By introducing a dual-cycle architecture and utilizing a heat carrier, this invention not only solves the problems of efficiency reduction and heating interruption caused by frosting but also achieves efficient cascaded energy utilization and continuous, stable system operation. This technology can be widely applied in air conditioning, heat pumps, refrigeration, and other fields, and is particularly suitable for high-energy-consuming scenarios such as high-temperature heat pumps and cryogenic systems with large temperature differences between the heat source and heat sink, demonstrating significant energy-saving potential and broad application prospects.

The application provides a double-circulation cooling device and method for a charging gun, which comprises a water pump, a water distribution unit, a liquid storage unit and a heat dissipation unit. The water pump comprises a first water pump and a second water pump. The first water pump, the water distribution unit and the liquid storage unit are sequentially connected to form a first circulation system. The second water pump, the heat dissipation unit and the liquid storage unit are sequentially connected to form a second circulation system. The first circulation system and the second circulation system exchange working medium and heat in the liquid storage unit. The double-circulation cooling system used in the application can make the cooling liquid flow through the working units of the circulation cooling system through multiple circuits, and the liquid storage unit is used as a working medium and heat exchange place between the first circulation and the second circulation. The flow of the cooling liquid in the liquid storage unit is switched to different circuits, the water resistance of the cooling liquid flowing through the circuits is small, the operating pressure of the components in the circuits is small, and the reliability of the charging gun cooling device is greatly improved.

The application provides a double-cycle refrigeration system and method with functions of shutdown pressure maintaining and hot gas defrosting, and the system comprises a compressor, a condenser, a refrigeration evaporator, a freezing evaporator, a first capillary tube, a second capillary tube, a bypass connecting pipe and a one-inlet and three-outlet electromagnetic valve; the one-inlet and three-outlet electromagnetic valve has one inlet and three outlets, and the three outlets are a first outlet, a second outlet and a third outlet respectively; the outlet of the condenser is connected to the inlet of the one-inlet and three-outlet electromagnetic valve; the first outlet of the one-inlet and three-outlet electromagnetic valve is connected to the inlet of the refrigeration evaporator through the first capillary tube; the second outlet of the one-inlet and three-outlet electromagnetic valve is connected to the inlet of the freezing evaporator through the second capillary tube; the third outlet of the one-inlet and three-outlet electromagnetic valve is connected to the inlet of the freezing evaporator through the bypass connecting pipe; and the outlet of the refrigeration evaporator and the outlet of the freezing evaporator are both connected to the suction port of the compressor, so as to solve the problems of complex defrosting structure and large compressor start-stop loss.

The application discloses a double-circulation full-type four-way intelligent high-precision aging furnace, and relates to the technical field of aging furnaces.The double-circulation full-type four-way intelligent high-precision aging furnace comprises a base and a sliding seat, and the top of the base is fixedly connected with a furnace body; when workpiece heat treatment is needed, the workpiece is moved to the inside of the furnace body and a longitudinal heating gun is started, so that the longitudinal heating gun can heat the air inside the air pipe; at this time, a temperature sensor can detect the temperature at the bottom of the inside cavity of the furnace body, and then the detection result is transmitted to the inside of a control host, so that when the inside temperature of the furnace body is high, the control host can control a No.1 motor to start; at this time, the No.1 motor can drive the baffle to rotate through a worm and a worm wheel, so that the baffle can adjust the airflow flow inside the air pipe, thereby achieving the intelligent adjustment effect of the inside temperature of the furnace body, that is, achieving the automatic adjustment effect of the workpiece heat treatment temperature.

The utility model provides a kind of double-cycle hot blast furnace drying device, including drying cabinet, hot blast furnace is equipped in the drying cabinet, the hot blast furnace is arranged in the one end of the drying cabinet, the other end of the drying cabinet is equipped with air blower, vertical heat exchange component and transverse heat exchange pipe are sequentially arranged on the flue gas passage of the hot blast furnace, the transverse heat exchange pipe is arranged at the top of the drying cabinet, the transverse heat exchange pipe end is connected with exhaust fan, the exhaust fan is arranged outside the drying cabinet.The utility model utilizes the heat generated by coal or biological pellet combustion and the heat carried by smoke to circulate heat dissipation through heat dissipation pipeline, makes hot air circulate and flow in container by fan, then dries the goods in drying cabinet, compared with traditional hot drying, drying time is shortened by more than 30%, and cost is reduced by 50%.

This utility model relates to the field of raw liquid storage tank technology, and provides a raw liquid storage tank with dual circulation channels, including a storage tank. A feed pipe is fixedly connected to the top of the storage tank, and a discharge pipe is fixedly connected to the bottom of the storage tank. A circulation pipe is installed on the outer wall of the storage tank, and a circulation pump is installed on the outer wall of the circulation pipe. A cleaning mechanism is installed on the top of the storage tank. The cleaning mechanism includes a drive motor fixedly installed on the top of the storage tank, and the output shaft of the drive motor is fixedly connected to a first rotating rod via a coupling. By starting the drive motor, this utility model can rotate a first bevel gear fixedly connected to one end of the first rotating rod, causing a second bevel gear to rotate, thereby driving a stirring rod fixedly connected to the outer wall of the sleeve to rotate and provide auxiliary stirring of the raw liquid. This allows a scraper to slide along the inner wall of the storage tank, facilitating the cleaning and scraping of raw liquid adhering to the inner wall of the storage tank.

The utility model discloses a kind of double-cycle oil pot systems, it is related to food processing technical field, including kettle body, first oil circulating assembly and second oil circulating assembly, the internal space of kettle body includes first frying cavity and second frying cavity, wherein: first frying cavity and second frying cavity are respectively corresponding front and rear of double-cycle oil pot system;First frying cavity and second frying cavity are set in production direction front and back link;First oil circulating assembly is cyclically communicated in first frying cavity;First oil circulating assembly is used to provide hot oil to first frying cavity circulation;Second oil circulating assembly is cyclically communicated in second frying cavity;Second oil circulating assembly is used to provide hot oil to second frying cavity circulation.The utility model provides a kind of double-cycle oil pot system, by setting first oil circulating assembly and second oil circulating assembly respectively in front and back in oil pot, can better control the oil temperature of different regions;In addition, double-cycle structure can increase oil circulating speed, reduce oil residue deposition carbonization.

A two-cycle turbo machine (gas turbine cycle and steam turbine cycle) operating at atmospheric air temperature is provided. The turbo machine operates with the temperature of the air in the atmosphere instead of fossil fuels in order to zero the emission of toxic gases such as CO, CO2 and NOx in nature and does not require any other fuel.

This invention discloses a dual-cycle, installation-free, energy-saving air conditioner that recovers waste heat for refrigeration, belonging to the field of air conditioning and refrigeration technology. It incorporates a compression refrigeration system and an adsorption refrigeration system within the casing. A sealed phase-change heat transfer coupler is fitted onto the outer wall of the compressor's high-pressure pipe. The inner sleeve of the coupler, along with the outer sleeve wound around the generator's outer wall, forms a vacuum phase-change loop via a steam riser and a liquid return pipe, transferring compressed waste heat across the system to the generator. A double-layer jacket for condensation heat recovery is fitted onto the outer wall of the second condenser, connected to an auxiliary heating coil via an electronic flow control valve, an intermediate heat exchanger, and a circulating pump. This auxiliary heating coil, alternately wound around the generator with the outer sleeve, forms a dual heat source compensation. The insulation box is divided into a desorption chamber and a cold air chamber. Cold air from the cold air chamber is guided to the compressor and the second condenser for secondary cooling via an electric air valve and a duct. The control unit coordinates and regulates each actuator based on multiple temperature thresholds. This invention achieves dynamic coupling of dual-cycle waste heat recovery and cold source reuse, eliminating the need for an outdoor unit and improving the overall system energy efficiency.

The utility model discloses a double-tower double-circulation desulfurization system which comprises a device body, a first desulfurization tower and a second desulfurization tower are arranged in the device body, the left side of the first desulfurization tower is connected with a connecting pipe, the front end of the first desulfurization tower is connected with a smoke inlet pipe, one end of the connecting pipe is connected with a pump body, and a control valve is installed above the connecting pipe. A cover plate is installed above the second desulfurization tower, a motor is installed above the cover plate, a connecting rod is connected to the lower portion of the motor, the connecting rod is located in the second desulfurization tower, a fixing ring is installed on the connecting rod, a smoke exhaust pipe is connected to the front end of the second desulfurization tower, a mounting groove is formed in the smoke exhaust pipe, and the front end of the smoke exhaust pipe is connected with a metal plate; a mounting groove is formed in the metal plate, a filter screen is placed in the mounting groove, and a butt joint groove is formed in the metal plate, so that gas and a desulfurizing agent entering the device can be fully and uniformly mixed, the contact area of the gas and the desulfurizing agent is increased, the desulfurization reaction speed is increased, and the working efficiency of the device is improved.

The utility model belongs to the technical field of boilers, and particularly relates to a heat accumulating type boiler double-circulation energy-saving and emission-reducing device which comprises a boiler body, a supporting frame is fixedly connected to the lower side of the boiler body, a heat accumulating water tank is installed on the upper side of the boiler body through a supporting plate, and a smoke circulating pipe is arranged on the upper side of the boiler body. The flue gas circulating pipe is fixedly connected with the heat storage water tank, the upper end of the flue gas circulating pipe is fixedly connected with a coil pipe, the coil pipe is located in the heat storage water tank, and the upper end of the heat storage water tank is fixedly connected with a filtering water tank. Under the action of the servo motor, the cam and other structures, the ball body can be intermittently extruded, and the agitating plate can move back and forth in the heat storage water tank to agitate the water body in cooperation with the deformation action of the second spring, so that the heat conduction efficiency is improved, and the good heating effect is guaranteed.

The invention relates to the technical field of industrial combustors, and particularly discloses a double-circulation fuel staged low-nitrogen combustor which comprises a shell, a first fuel system and a second fuel system are coaxially arranged in the shell, the first fuel system is arranged in the middle of the shell, and the second fuel system is arranged in the middle of the shell. The first fuel system comprises a first combustion channel, a rotational flow combustion stabilizer and a first-stage fuel nozzle which are sequentially communicated from inside to outside, the rotational flow combustion stabilizer is fixedly installed in the first combustion channel, and the first-stage fuel nozzle is installed at the outlet end of the first combustion channel and used for spraying out first-stage main fuel; the second-stage spray guns are evenly distributed in the circumferential direction of the shell and located on the periphery of the first combustion channel. The second-stage spray gun is used for spraying out second-stage graded fuel. According to the invention, the stability of flames and the continuous low value of nitrogen oxide emission can be ensured.

The invention discloses a wind power plant power curve AI calibration method considering environmental factors and performance degradation, and belongs to the field of new energy power generation. The objective of the invention is to solve the problem of large prediction deviation caused by insufficient consideration of environment dynamic change and lack of a fan degradation monitoring correction mechanism in a traditional power curve. The method comprises the steps of firstly constructing an environmental stress-microscopic damage mapping library, then generating a physical credible virtual sample to fill a data blind area, then establishing an implicit degradation-power coupling equation set, and finally solving in real time through edge side fast and slow double circulation. The fast cycle calibrates the power in a second level, the slow cycle periodically updates the degradation initial value and the correction parameter, and the double-cycle cooperation ensures the calibration accuracy. The method can integrate the environment and degradation factors, improves the power prediction precision, guarantees the stability of a power grid, improves the benefits of a wind power plant, and is suitable for wind power plant power optimization control.

The utility model provides a double-circulation heat treatment quenching oil water-cooling device, which belongs to the field of water-cooling devices, and comprises a support plate, a quenching tank and a water tank, the circulating assembly comprises a water pump, a coiled pipe and a backflow pipe, the water pump is fixedly arranged on the supporting plate, the liquid inlet end of the water pump is fixedly connected with a water pumping pipe, the water pumping pipe penetrates through the water tank to be fixedly arranged, the coiled pipe is arranged in the quenching pool, and the two ends of the coiled pipe penetrate through the two sides of the quenching pool to be fixedly arranged; and one end of the coiled pipe is fixedly connected to the liquid outlet end of the water pump. According to the utility model, the circulating assembly is arranged, so that continuous and effective heat dissipation of quenching oil is ensured, and the production efficiency is improved; and the oil pump is further arranged, so that circulating flow of quenching oil can be promoted, the cooling rate of the quenching oil is increased, and the overall heat dissipation efficiency is improved.

The application discloses a double-cycle double-waste drying furnace based on independent temperature control, which comprises a furnace body (1), a hearth (2) is arranged in the furnace body (1), linear threading openings (3) are arranged on the front and back sides of the middle part of the hearth (2), and a movable lifting partition plate assembly (4) is arranged between the two linear threading openings (3); a plurality of electric heating modules (5) are arranged in the hearth (2) and are distributed side by side, and the electric heating modules (5) are located below the linear threading openings (3); an adjustable air inlet module (6) is arranged at the bottom of the hearth (2), and an adjustable air outlet module (7) is arranged at the top of the hearth (2). The application has the characteristics that two different temperature drying operations can be simultaneously performed.

The invention discloses a double-circulation collision system and method adopting a centrifugal machine-gear disc powder feeding structure, and belongs to the technical field of material preparation. The system mainly comprises a main circulation pipeline, a secondary circulation pipeline and a particle grading device. A motor capable of controlling the rotating speed is arranged on a gear disc in the secondary circulation pipeline, the rotating speed of the gear disc can be controlled, and then the coarse particle powder feeding amount of the gear disc is accurately controlled. The high-speed ejection direction of the coarse particles in the centrifugal machine is the tangential direction of the centrifugal machine, and the ejection direction of the centrifugal machine in the tangential direction is perpendicular to and intersects with the axis of the collision chamber, so that the coarse particles sent out by the centrifugal machine can break through an airflow boundary layer on the inner wall face of the collision chamber at the maximum speed and then enter a core area of the collision chamber. And the collision probability and efficiency of coarse particles and fine particles of the powder are increased.

The utility model discloses a controller assembly and test flexible double -cycle production line, include: the horizontal around arrangement's outer circulation conveying component, and the interval is equipped with a plurality of operation stations along the circumference, nest in the inside loop conveying component of outer circulation conveying component, constitute the fast channel of no operation station, a plurality of two -way transfer components, and the interval is distributed between outer circulation conveying component and inside loop conveying component, two -way transfer components include the stage of vertical lifting and the horizontal translation mechanism on the stage, corner link component, be located in the path turning point of outer circulation conveying component and inside loop conveying component, including rotatable jacking platform. Double -cycle layout and two -way transfer component make product according to the process demand in outer circulation line processing or transfer into inside loop line and jump, break through the process flow restriction of traditional single -cycle production line, realize multivariety collinear production.

The present application provides a kind of dual-cycle combustion stabilizing system of mixed combustion boiler, belongs to coal mixed combustion technical field.The system, including lignite dryer, condensate device, poor lignite conveying device, intelligent analysis device, heat exchanger, bypass flue air blower, coal mill and SCR denitration device.Intelligent analysis device controls bypass flue air blower and extracts excess flue gas volume and is transported to heat exchanger.And control bypass flue air blower and transport the excess flue gas volume after heat exchange to coal mill, to supplement the air volume output to coal mill, reach the effect of flue gas circulation, improve the air volume transported to coal mill.At the same time, heat exchanger uses condensate heat exchange to obtain high-temperature steam, and transports high-temperature steam to lignite dryer.Lignite dryer uses high-temperature steam to dry poor lignite to obtain low-temperature condensate, and transports low-temperature condensate to condensate device, to achieve the effect of water circulation.Thereby realize lignite upgrading, improve the purpose of combustion efficiency, and have protective effect to boiler and auxiliary machine.

The invention discloses an efficient thermoelectric decoupling method and system combined with supercritical CO2 circulation, relates to the field of energy power systems, and aims at solving the problems that a traditional steam circulation system is low in load energy efficiency, insufficient in thermoelectric decoupling flexibility and large in energy loss. The system comprises a steam cycle unit, a supercritical CO2 cycle unit, a collaborative heat exchange unit and an intelligent control unit, and the core of the method is that a sensor is arranged to collect multi-dimensional parameters, the multi-dimensional parameters are preprocessed through a 3-sigma criterion, and a collaborative reference coefficient of the system is calculated to quantify dual-cycle suitability; distinguishing working conditions based on a load fluctuation coefficient, and predicting the load in future 2 hours by combining machine learning; the supercritical CO2 cycle power generation load proportion is calculated according to the working conditions, the rotating speed of a compressor and the opening degree of a regulating valve are adjusted, and the ejection coefficient of an ejector and heat pump power are calculated through synchronous coupling; and through the energy efficiency deviation correction parameter, the daily update reference coefficient adapts to long-term change. And the method is suitable for the scenes of thermal power generation, central heating and the like.

This utility model relates to the field of motor stators and discloses a dual-cycle oil-cooled ultra-high-efficiency permanent magnet motor stator structure, including laminations a, b, and c. Mounting holes are formed through the outer sides of laminations a, b, and c, and rivets are provided on the inner walls of the mounting holes. Slots are formed on the outer sides of laminations a, b, and c, and fasteners are inserted into the inner walls of the slots. A heat dissipation assembly is provided on the rear side of lamination a. The heat dissipation assembly includes an inlet hole, which is formed through the front side of lamination a. In this utility model, the conical inlet hole in the heat dissipation assembly accelerates the injection of cooling oil. Furthermore, the continuously bent V-shaped guide grooves, combined with multiple sets of flow grooves in the middle of the stator teeth, allow the cooling oil to flow directly through the core heat-generating area where the coil contacts the teeth, directly carrying away the Joule heat generated by the coil's energization, thereby improving the heat dissipation effect of the device.

This invention provides a segmented composite cooling system for a steel belt conveyor, comprising: an air-cooled component and a water-cooled component; the air-cooled component includes a circulating air cooler, a housing, an air inlet pipe, and an air outlet pipe; the number of air inlets on the housing above the front section is greater than the number of air inlets on the housing above the middle section; the other end of the air outlet pipe is connected to the housing exhaust port on the housing above the tail section; the water-cooled component includes a circulating water tank, a water inlet pipe, a water outlet pipe, and a water collection and return channel; the water inlet pipe in the front section is located below the bearing surface of the front section, and the water inlet pipe in the middle section is located below the bearing surface of the middle section; the water inlet pipe in the front section is equipped with multiple narrow-angle fan-shaped nozzles, and the water inlet pipe in the middle section is equipped with multiple wide-angle fan-shaped nozzles. The synergistic effect of the segmented cooling system and the dual-circulation composite cooling improves cooling efficiency and is energy-saving and environmentally friendly, achieving rapid cooling and fixation of materials with high quality and efficiency while avoiding problems such as material adhesion and steel belt deformation.

This invention relates to the field of liquid cooling technology for charging piles, and discloses a dual-cycle adaptive liquid cooling system for charging piles. The system includes a main circulation cooling loop, an auxiliary circulation regulation loop, an operating condition database, a feature prediction module, a primary regulation module, a secondary regulation module, and a collaborative decision-making module. The main circulation loop provides basic heat dissipation for the charging pile power module; the auxiliary circulation loop dynamically adjusts the heat exchange rate. The feature prediction module outputs predicted temperature features based on the operating condition database and a deep learning model; the primary regulation module determines whether to initiate primary flow regulation and calculates the initial flow rate adjustment value accordingly; the secondary regulation module determines whether to initiate secondary dynamic flow rate regulation based on actual outlet temperature changes; and the collaborative decision-making module performs collaborative decision-making based on the status of multiple charging piles within the region to generate an optimal temperature balancing strategy. Through a dual-layer regulation combining prediction and feedback, and regional collaborative decision-making, precise and adaptive control of the charging pile's heat dissipation capacity is achieved.

The utility model relates to a coal-fired cogeneration system integrating double-circulation heat pump heat storage. The coal-fired cogeneration system comprises a steam turbine system, a heat supply network water heating system, a heat pump system and a storage tank heat storage and release system. The steam turbine system comprises a boiler (23), a superheater outlet of the boiler (23) is connected with an inlet of a third mixing valve (22), another inlet of the third mixing valve (22) is connected with a cold source outlet of an auxiliary superheater (17), and an outlet of the third mixing valve (22) is connected with an inlet of a high-pressure cylinder (28). On the basis of a traditional combined heat and power generation system, excessive electric energy is converted into heat energy to be stored and utilized by integrating a heat pump and a heat storage system. According to the system, the overall heating performance coefficient is improved through low-temperature heat pump circulation, the heat supply capacity is enhanced, and thermoelectricity decoupling and low-carbon flexible operation of a coal-fired cogeneration unit can be achieved.

The application relates to the computer technical field, in particular to a kind of wharf loading and unloading operation control method, equipment, medium and product.The method will obtain the working instruction set of the ship to be operated, and according to the unloading task progress of the ship to be operated and the preset unloading sequence constraint, the executable task set is filtered out from the working instruction set.Then, the unloading task and the loading task in the executable task set are matched, at least one double-cycle candidate scheme is generated, the time cost estimation of each double-cycle candidate scheme is carried out, and the target scheme is determined based on the obtained estimation result, to control the shore crane and the horizontal transport vehicle to execute the target scheme, thereby improving the wharf loading and unloading operation efficiency.

The utility model discloses a kind of coil radiator of storage tank temperature uniform distribution, belong to liquid storage tank technical field, the device includes tank body, first heat exchange pipe, stirring shaft with paddle, external drive assembly and heat dissipation component, second heat exchange pipe and fan are arranged in the heat dissipation component, and second heat exchange pipe and the first heat exchange pipe in tank body are cyclically communicated;The drive assembly is set to tank body outside, power is transmitted to stirring shaft by bevel gear mechanism, the utility model is by setting internal and external double circulation heat exchange loop and external stirring drive structure, effectively solve the uneven liquid temperature in prior art, easily be contaminated and the problem of low heat dissipation efficiency, with liquid temperature uniform, high purity, temperature control efficiency is good, compact structure and the beneficial effect of stable operation.

This invention relates to a device and method for dual-cycle refrigeration LNG helium extraction and light hydrocarbon recovery, belonging to the field of cryogenic liquefaction separation and natural gas helium extraction technology. The device integrates a mixed refrigerant refrigeration cycle and a nitrogen refrigeration cycle, and sequentially includes a feed gas pretreatment unit, a light hydrocarbon recovery unit, a denitrification liquefaction unit, and a helium extraction unit. The mixed refrigerant cycle provides cooling capacity for feed gas cooling liquefaction, light hydrocarbon recovery, and natural gas denitrification processes, while the nitrogen cycle provides deep cooling capacity for extracting crude helium from nitrogen-rich gas. In terms of method, the purified feed gas sequentially undergoes pretreatment, light hydrocarbon recovery, denitrification, and helium extraction steps to simultaneously produce LNG, crude helium, LPG, and stabilized light hydrocarbons. This invention has advantages such as high process energy efficiency, high helium and propane recovery rates, high purity of co-produced products, and reliable operation, realizing the high-value comprehensive utilization of natural gas resources.

The invention discloses a dual-circulation air CO2 trapping method and system, and relates to the technical field of air CO2 trapping. According to the method, CO2 in air is captured by an inorganic salt absorbent to generate a CO2-rich solution, the CO2-rich solution reacts with a phase-splitting displacer to transfer CO2 and split phases, a lean phase returns and continues to be captured to form a first cycle, and after a rich phase is heated and desorbed, the lean solution flows back to form a second cycle. The system comprises an absorption unit, a replacement unit, a phase splitting unit and a regeneration unit, the regeneration treatment capacity is reduced through phase change enrichment, oxidative degradation and high-temperature regeneration of an organic absorbent are avoided, and energy consumption is greatly reduced. According to the method, collaborative optimization of the trapping efficiency, the energy consumption and the stability is realized, and support is provided for large-scale application of a DAC (Digital to Analog Converter) technology.

The utility model relates to low nitrogen combustor technical field, and disclose a kind of double circulation low nitrogen combustor.The kind of double circulation low nitrogen combustor, comprising: combustor body, the front of combustor body is connected with fuel full combustion mechanism, the right side of combustor body is connected with gas delivery mechanism, the fuel full combustion mechanism includes: the combustion head connected in the front of combustor body, the rear of combustion head is connected with connecting ring, and the outside ring of connecting ring is equipped with fixing device.The utility model is provided with gas valve group in the right side of combustor body, and the left side of gas valve group is connected with gas pipeline, gas valve group and combustor body are connected using the setting of gas pipeline, and the middle of gas pipeline is provided with valve, and the fuel discharge speed inside gas pipeline can be regulated and controlled by valve, so as to control the discharge amount of fuel, make fuel be fully reacted, let equipment rationalization control, also reduce the probability of fuel secondary combustion simultaneously.

The invention discloses a large-scale explosion-proof motor with a built-in self-driven phase change heat dissipation system and a heat dissipation method of the large-scale explosion-proof motor. The motor comprises a motor base, a stator assembly, a rotor assembly and a top shell. A set of closed self-driven phase change heat dissipation system is integrated in the motor and is used for realizing heat dissipation in the motor; the self-driven phase change heat dissipation system comprises a phase change heat dissipation unit and a passive driving circulation unit. Through a built-in phase change unit and a passive driving circulation unit, super-efficient heat conduction is achieved through latent heat of phase change of a working medium, and a centrifugal pump and a nozzle are driven through kinetic energy of a rotating shaft to establish a double-circulation cooling system. The design thoroughly solves the problems of low air cooling efficiency and high liquid cooling leakage risk in the prior art, has the advantages of heat dissipation performance and intrinsic safety, synchronously realizes qualitative change of heat dissipation efficiency and intrinsic safety performance, and is suitable for a large-scale high-voltage motor in a flammable and explosive environment.

The utility model belongs to the technical field of waste heat recovery heating, and particularly discloses a waste heat recovery steam-electricity double-drive heat pump unit which comprises an absorption type circulation subsystem, and the absorption type circulation subsystem comprises a generator, a first absorber, a second absorber, a first condenser, a first evaporator, a second evaporator, a heat exchanger and a solution pump set which are communicated through working medium channels. By combining an absorption type double-circulation subsystem and a compression type double-circulation subsystem, a unique structure of waste heat three-stage cascade heat extraction and hot water four-stage series heating is constructed, the technical bottleneck of a single-circulation heat pump is effectively overcome, low-grade industrial waste heat and driving heat energy are fully utilized, and the energy utilization potential is deeply excavated; the hot water output temperature of the heat pump system is obviously increased, and the industrial high-temperature heat utilization requirement is met; the energy transfer process is optimized, reasonable matching of waste heat temperature grades and multi-stage efficient utilization of heat energy are achieved, and the overall energy efficiency of the system is greatly improved; the structural design is reasonable, the operation is stable and reliable, and an efficient solution is provided for industrial energy conservation and consumption reduction.