1263 results about "Auxiliary heating" patented technology

The invention provides a cooking utensil superheated steam system and a temperature control method thereof, and relates to the technical field of steam cooking. The superheated steam system of the cooking utensil comprises the cooking utensil, a steam module, an ultrasonic heating module, a temperature monitoring module, a cooking data acquisition module, a data analysis module, a model prediction module, a display module, a dynamic adjustment heating strategy, a waste heat recovery module and a preheating box. Ultrasonic vibration is used for assisting heating, water molecules rapidly vibrate in a microwave field to generate heat, the waste heat recovery module captures heat generated in the cooking process through a heat exchanger and is used for preheating the next batch of food, the energy utilization efficiency is remarkably improved, energy waste and carbon emission are reduced, the heating strategy is dynamically adjusted, and the energy utilization rate is increased. According to the real-time sensor data and the prediction model, the heating power, the steam flow and the heating time parameters are automatically optimized, unnecessary energy consumption is avoided, and accurate temperature control and energy consumption optimization are achieved.

The invention belongs to the technical field of refrigeration, and particularly relates to a gas-liquid separator with an auxiliary heating function, which comprises a separation box, and the top of the separation box is provided with a gas inlet pipe and an exhaust assembly; the exhaust assembly comprises a main air outlet pipe and a connecting sleeve, the main air outlet pipe is connected with the oil return assembly through the connecting sleeve, the oil return assembly comprises an oil return head and a rotating sleeve, and an oil return hole is formed in the oil return head. The oil return holes in the top of the oil return head are sparse and small in hole diameter, and the oil return holes in the bottom of the oil return head are dense and large in hole diameter. Therefore, an oil layer at the layered liquid-state bottom can enter the oil return head more easily through the oil return hole at the bottom of the oil return head, and meanwhile, the small-aperture oil return hole at the top of the oil return head can slow down the liquid-state refrigerant at the layered liquid-state top from entering the oil return head. Liquid refrigerants can be prevented from entering the compressor through the oil return head and the main air outlet pipe.

The invention relates to a temperature control method and device and nucleic acid amplification detection equipment. The method comprises the following steps: when a main heating element reaches a target working temperature and the temperature is stable, obtaining a current combination corresponding to each auxiliary heating element according to the target working temperature and a preset corresponding relation; wherein the preset corresponding relation is the relation between the temperature and the current of the auxiliary heating piece meeting the temperature uniformity requirement; each auxiliary heating element is arranged corresponding to each temperature compensation area; and according to the current combination, an auxiliary heating element is driven to carry out temperature compensation adjustment on the temperature compensation area. The temperature uniformity can be realized, and the temperature accuracy is ensured.

The invention discloses heat storage equipment for a stepped stacking bed. The equipment comprises a phase change heat storage capsule, a flow equalizing supporting device, a heating system, a heat preservation layer, a heat exchange air inlet and outlet and a device shell. The heat preservation layer is laid on the inner side of the device shell. Heat exchange air inlets and outlets are formed in the lower end and the upper end of the device shell; the heating system comprises a central heating device, an auxiliary heating device and a temperature control device, the phase change heat storage capsules are placed on a flow equalizing plate supported by a boss, and the phase change heat storage capsules are distributed in the heat storage tank in a stepped mode according to the phase change temperature of the phase change materials. According to the device, cascade storage and release of heat can be achieved, the heat exchange efficiency is improved, and the problem of intermittency of renewable energy sources is solved.

The invention relates to the field of refrigerator control, and particularly discloses a refrigerator waste heat recovery system which firstly collects multi-dimensional data including the environment, the electricity price and the equipment state in real time. Thirdly, performing deep processing on the data to construct a feature vector capable of reflecting the dynamic state of the system; the vector accurately predicts the heat supply power and the heat demand quantity in a period of time in the future through a machine learning model. And finally, based on the prediction results, in combination with economic factors such as time-of-use electricity price, equipment cost and the like, multi-objective optimization calculation is performed, and an optimal control plan with excellent energy efficiency and economic efficiency is generated. The plan is no longer a simple afterward response, but prospectively determines whether to start a water pump to store heat at the current moment, so that off-peak storage and on-demand distribution of heat energy are realized, waste heat waste and unnecessary auxiliary heating are effectively avoided, the technical pain point of supply and demand mismatching is solved, and the comprehensive energy efficiency and economic benefits of the system are remarkably improved.

The invention discloses a heat supply system and method for a water source heat pump coupled seasonal water pool synergistic municipal heat supply network. In the system, a solar heat collector is connected with a seasonal heat storage water pool through a pipeline via a heat exchanger; the seasonal heat storage water tank and the municipal heat supply network are connected with a heat consumer through a pipeline via a heat exchanger; and the water source heat pump is connected with the seasonal heat storage water tank and the heat consumers through pipelines. According to the system, a multi-source complementary framework with solar energy as a main source, heat pump synergism and municipal administration as a bottom is constructed. In the heat supply season, the system adopts a temperature difference lag control strategy, according to seasonal temperature changes of the heat storage pool, a direct heat supply mode, a water source heat pump coupling heat storage pool heat supply mode and a municipal heat supply network heat compensation mode are automatically switched, and stable transition from high-temperature direct heat supply to low-temperature water pump auxiliary heat supply and then to municipal heat supply network bottom heat supply is achieved. It is guaranteed that the building can obtain continuous and stable heat supply all the time in the heat supply season, and meanwhile, clean energy is utilized in a larger range, and heat supply quality is accurately controlled.

A heat pump system includes a heat pump and an auxiliary heat source. A heating coefficient of performance is determined for the heat pump based on ambient outdoor air temperatures, and the heat pump is operated to heat a process fluid an output temperature based on the heating coefficient of performance and a reference heating coefficient of performance. The auxiliary heat source can be operated to bring the process fluid to a target temperature for heating a load, with the target temperature being a function of the ambient outdoor air temperatures.

The invention provides a heavy oil thermal-flow coupling development experimental device and method based on microwave-assisted gravity drainage, and belongs to the field of oil-gas field development. The experimental device comprises a three-dimensional oil reservoir simulation system, a microwave-assisted heating system, a horizontal well injection-production regulation and control system and a multi-field monitoring system; the microwave auxiliary heating system comprises a microwave generation regulation and control system, a microwave transmission system and a shaft integrated microwave radiator, the microwave generation regulation and control system comprises an industrial grade microwave generator, a power regulator and a PLC, and the microwave transmission system comprises a microwave coaxial cable and a microwave waveguide tube bundle; and the microwave generator is continuously connected with the microwave waveguide tube bundle and the shaft integrated microwave radiator. According to the heavy oil thermal-flow coupling development experimental device and method based on microwave-assisted gravity oil drainage, the technical problems that an existing deep heavy oil thermal recovery experimental device cannot reproduce a'thermal-flow-force 'multi-field coupling environment, the microwave heating adaptability is poor, and the experimental scale and the field deviation is large are solved. The heavy oil thermal-flow coupling development experimental device and method based on microwave-assisted gravity oil drainage solve the technical problems that an existing deep heavy oil thermal recovery experimental device cannot reproduce the'thermal-flow-force' multi-field coupling environment.

The invention provides a multi-heat-source combined energy storage and auxiliary heating system and method for a nuclear fusion device, and belongs to the field of energy conversion and utilization of the nuclear fusion device, and the system comprises a high-temperature heat source storage and supply system which is used for receiving and storing heat of a cladding and a multiplication region coolant, and continuously outputting a high-temperature heat source during the operation and pause of a fusion reactor; the medium-temperature heat source and auxiliary supply system is used for receiving the heat of the divertor coolant and supplementing and outputting the medium-temperature heat source through a medium-temperature auxiliary heater during the suspension period of the fusion reactor; the low-temperature heat source and auxiliary supply system is used for receiving heat of the vacuum chamber coolant and supplementing and outputting a low-temperature heat source through a low-temperature auxiliary heater during the suspension period of the fusion reactor; the high-temperature heat source storage and supply system, the medium-temperature heat source and auxiliary supply system and the low-temperature heat source and auxiliary supply system operate independently. According to the invention, high-temperature heat, medium-temperature heat and low-temperature heat are simultaneously, continuously and stably supplied to the outside during operation and pause of the fusion reactor.

The multi-energy coupling heating system comprises a geothermal energy utilization module, an air energy utilization module, a solar energy utilization module, an energy storage tank, a control module and the like, and multi-loop cooperation is formed through a pipeline and a circulating pump. The method comprises a winter heating mode and a summer heat storage mode, wherein geothermal energy is used as a basis in winter, solar energy is used for auxiliary heating, and air energy is used for supplementary heating; solar energy is utilized to store heat underground in summer to maintain soil heat balance. And the solar PV / T assembly generates power to be used by system equipment and stores the power. Multi-energy complementation is achieved, the energy self-sufficiency rate is increased, cost is reduced, carbon emission is reduced, stable operation under extreme working conditions is guaranteed, and the system is suitable for rural heating in the northwest region.

The invention discloses a raw coal drying dust removal system with a waste heat recovery function and a raw coal drying method. The raw coal drying dust removal system comprises a crushing assembly, an electric auxiliary heating rotary kiln, a cooling section rotary kiln, a gas-solid separator, a tail gas treatment dust removal assembly, a waste heat recovery heat exchanger and a heat pump system. The crushing assembly, the electric auxiliary heating rotary kiln and the cooling section rotary kiln are communicated in sequence; a first gas outlet of the electric auxiliary heating rotary kiln is communicated with the gas-solid separator; the gas-solid separator is communicated with the waste heat recovery heat exchanger through the tail gas treatment dust removal assembly; the heat pump system is connected with the cooling section rotary kiln and the waste heat recovery heat exchanger, and an air outlet of the heat pump system is communicated with an air inlet of the electric auxiliary heating rotary kiln. By means of the waste heat recovery heat exchanger and the heat pump system, originally discharged waste heat is recycled, energy consumption of electric auxiliary heating is reduced, and recovery and temperature rise of tail gas heat are achieved.

The invention discloses a follow-up type double-face induction heating auxiliary incremental forming device, method and equipment and a medium, and relates to the field of sheet metal forming. The forming tool heads are fixed to the tail end of the mechanical arm, the two sides of the to-be-machined plate are each provided with one forming tool head, and the forming tool heads are used for extruding the to-be-machined plate to enable the to-be-machined plate to deform; and the electromagnetic induction heating device is rotationally connected with the mechanical arm through a mounting bracket, and the electromagnetic induction heating device is used for providing an electromagnetic field to heat the to-be-processed plate. And the processing performance of the plate is improved in an electromagnetic induction auxiliary heating mode.

This invention belongs to the field of biomass subcritical fertilizer production, specifically relating to a mobile photovoltaic-powered subcritical fertilizer production system and its product application aimed at reducing nitrogen and phosphorus emissions, increasing efficiency, and resource-based disposal of high-moisture waste. It includes a solar preheating system, a photovoltaic power supply system, an auxiliary heating system, a hydrothermal reaction system, and a post-treatment system. The photovoltaic power supply system and auxiliary heating system are connected to the electrical load of the hydrothermal reaction system; the hydrothermal reaction system is connected to both the solar preheating system and the post-treatment system. This invention utilizes electrodialysis technology to desalinate the hydrothermal charcoal before returning it to the field. Through electrodialysis, the desalination rate of the charcoal reaches 45%-90%, and the conductivity of the desalinated charcoal is 1.40-6.75 mS / cm. The desalinated charcoal significantly increases crop yield; chlorophyll content increases by 25.5-67.5%, fresh weight increases by 18.5%-175%, and lettuce root length increases by 37.0%-98.2%. The high degree of desalination avoids the negative effects of salt stress on lettuce roots.

The utility model discloses a heating device for heating and ventilation engineering, and relates to the technical field of heating equipment. A plurality of heat flow boxes are arranged on the inner side of the outer protection frame and are in a wave shape, a plurality of first flow guide strips and a plurality of second flow guide strips are arranged on the inner sides of the heat flow boxes, a protection water tank is arranged on the rear side of the outer protection frame, and an auxiliary heating mechanism is arranged below the outer protection frame. Heat flow flows in an S-shaped mode on the first flow guide strips and the second flow guide strips, meanwhile, the heat flow box is in a wave shape, the contact area of the heat flow in the heat flow box is greatly increased, and the heating efficiency is improved. By arranging the protective water tank, the influence of high temperature of the heat flow box on the wall is effectively avoided, meanwhile, heat exchange is conducted between the height outside the heat flow box and water in the protective water tank, then the water in the protective water tank is heated, the temperature rises, follow-up household water using is facilitated, and the energy-saving purpose is achieved; the heat extraction fan in the auxiliary heating mechanism is used for accelerating heat exporting between the heat flow boxes, and the heating efficiency is improved.

The utility model discloses a packaging structure of an air-cooled galvanic pile system, and relates to the technical field of air-cooled fuel cells. The device comprises a packaging housing, two adjusting mechanisms and a configuration mechanism, wherein the two adjusting mechanisms and the configuration mechanism are arranged on the packaging housing. According to the utility model, by arranging the adjusting mechanism, during cold start, the auxiliary heating assembly can be started, so that the air-cooled galvanic pile system can quickly reach the required temperature and the loss is reduced, and then, a hydraulic cylinder I can be started to be matched with a U-shaped block and a connecting rod I, so that a plurality of rotating blocks can rotate; during high-power operation, the large opening and closing angle of the fan can be adjusted, the motor is started at the same time, the motor drives the rotating shaft and the fan blades to rotate, meanwhile, when the fan blades rotate, the fan blades can rotate, and the fan blades can be driven to rotate. And air outside the packaging housing can be sucked into the packaging housing to cool the air-cooled galvanic pile system, so that the heat dissipation efficiency is improved.

The invention discloses a control method of an LNG (liquefied natural gas) ship isolation void modularized heating structure, which comprises a module frame, a main heater, a standby heater, an auxiliary heater and a heating coil, and is characterized in that the module frame is arranged in a motor chamber which is originally used for placing a compressor motor; the main heater, the standby heater and the auxiliary heater are all fixed on the module frame, the heating coil is fixed in a cabin of the isolation void cabin, and a plurality of temperature sensors are fixed on the front cabin wall and the rear cabin wall of the isolation void cabin. The isolated void modular heating structure is arranged in the compressor motor chamber, the heating coil is arranged in the internal space of the isolated void, and the heating medium conveying pipeline of the isolated void modular heating structure is connected with the heating coil, so that gas in the isolated void can be heated; condensate water is prevented from being formed in the isolation void cabin, material performance reduction caused by low temperature is avoided, and therefore the integrity of the ship structure is guaranteed, and ship navigation safety is guaranteed.

The present application relates to a fuel cell thermal management system, a vehicle and a fuel cell thermal management method. The fuel cell thermal management system comprises: a fuel cell stack, wherein a coolant conduit I is connected between a liquid outlet and a liquid inlet of the fuel cell stack, and a first water pump is mounted on the coolant conduit I; a first three-way valve, wherein a first port and a second port of the first three-way valve are connected in series to the coolant conduit I; a coolant conduit II, wherein an input port of the coolant conduit II is in communication with a third port of the first three-way valve, and an output port of the coolant conduit II is in communication with the liquid inlet of the fuel cell stack; and a PTC heater, wherein the PTC heater is mounted on the coolant conduit II. A coolant can be directly heated by means of the PTC heater in the coolant conduit II until the temperature of the fuel cell stack rises to a normal operating temperature, thereby achieving a rapid cold start. The problems of a low heating rate and a low heat utilization rate when the PTC heater performs auxiliary heating on the stack by means of a heat exchanger during a cold start of conventional vehicles are solved.

The invention discloses a coal gangue decarburization method and device, the device comprises a feeding bin, a cyclone preheating separator and a cyclone separator, the feeding bin is communicated with the cyclone preheating separator, and the cyclone preheating separator is provided with an auxiliary heating device; the cyclone preheating separator is communicated with the suspension furnace, and the cyclone preheating separator is communicated with the suspension furnace through the cyclone separator; one end of the suspension furnace is communicated with an air heater, and the other end is communicated with the cyclone separator; the cyclone separator is communicated with an air feeder; calcination at the sintering temperature not higher than 1050 DEG C is realized, so that the problems of overhigh ignition loss and sintering are solved, the ignition loss is effectively controlled to be 0.5% or below, and meanwhile, the carbon content is controlled to be 0.3% or below; the coal gangue powder can be calcined in 250 meshes, and the plasticity index of the coal gangue powder is not reduced.

The utility model provides a modular planting square cabin based on a water flow window, in the field of water flow window application, the modular planting square cabin comprises a cabin body, a water flow window module, an electrolytic cell, a first heat exchanger, a core reactor and a circulating water pump, the water flow window module is a partition in a cabin body space, and the space in the cabin body is divided into a plurality of planting spaces; a water outlet of a waterway in the water flow window module is connected with the electrolytic cell, an oxygen pipeline in the water flow window module is connected with an oxygen outlet of the electrolytic cell, and the electrolytic cell is connected with the power module; a first inlet of the first heat exchanger is connected with a hydrogen outlet of the electrolytic cell, a second inlet of the first heat exchanger is connected with a reactor outlet, and a heat exchanger outlet is connected with a reactor inlet; a hot water outlet of the heat-insulating tank is connected with a water inlet of a waterway of the water flow window module; the square cabin has the advantage of being high in energy storage density, energy storage and oxygen supply are achieved, and meanwhile the energy utilization efficiency is greatly improved.

The invention discloses an online temperature control device for an aluminum alloy profile extrusion die, and relates to the technical field of aluminum alloy profile extrusion devices, and the online temperature control device comprises a base, a movable workbench, a die conveying assembly, a heating element and a temperature control assembly. According to the online temperature control device for the aluminum alloy profile extrusion die, the full-automatic process of heating and heat preservation of the movable die is achieved, the overall time of temperature control and die replacement of the movable die is shortened, the safety and continuity of the production process are improved, and the production efficiency is improved through wrapping of the heat preservation cover and cooperative work of the heating element and the auxiliary heating element. Due to real-time feedback regulation and control of the temperature detection element and the PLC control system, the temperature of the movable mold can be stably maintained within the range required by the process, and the problems of profile surface defects, dimensional precision deviation and the like caused by temperature fluctuation of the movable mold are effectively avoided; and the product quality consistency of the aluminum alloy section is obviously improved.

The invention relates to the technical field of automatic control of industrial electrolysis devices, in particular to an alkaline water electrolysis hydrogen production cold start control method which comprises the following steps: S1, loading a preset cold start operation parameter sequence, reading a locally stored breakpoint record file, analyzing step record identifiers in the breakpoint record file, and storing the step record identifiers in the step record file; determining a starting stage pointer of the current system, and generating an initial starting state parameter containing a target temperature rise curve and a current climbing rate; and S2, driving an alkali liquor circulating pump and an auxiliary heater to operate based on the initial starting state parameters, and monitoring the outlet temperature of the electrolytic bath in real time. According to the method, the change rate of the voltage and the temperature is calculated through the sliding time window, and it is ensured that the system updates the breakpoint state record only when the working condition is stable, so that the recovery capacity of the system under the outage or abnormal condition is effectively improved, and control overshoot possibly caused by recovery from a violent fluctuation state is avoided; and the reliability and the safety of the system are obviously enhanced.

This invention discloses a method and apparatus for fabricating complex hollow structures using pulsed DC and induction eddy current cyclic loading assisted diffusion bonding, relating to a method for assisted heating diffusion bonding. It achieves efficient and uniform heating of metallic materials. Step 1: Prepare a predetermined complex hollow metal structure to be diffuse bonded, polish and clean the surface of the complex hollow metal structure; Step 2: Place the complex hollow metal structure in a tooling mold for molding, and place the mold into a vacuum furnace; Step 3: Set up a dual-source control system; Step 4: Perform diffusion bonding under specified parameters, depressurize after the diffusion time is completed, and cool in the furnace until it reaches room temperature before removing the part. This invention combines pulsed DC heating and induction eddy current heating for diffusion bonding, improving diffusion efficiency while ensuring temperature uniformity, increasing the welding rate, and improving the quality of the diffusion joint.

The invention discloses an aerosol generating device and system and a control method. The aerosol generating device comprises a battery cell; a first heater configured to be at least partially inserted into the interior of the aerosol-generating article for heating, and a second heater configured to be at least partially heated around the aerosol-generating article; and the controller is configured to control the heating energy supplied to the first heater and the second heater by the battery core, so that the temperature of the first heater is higher than that of the second heater in the whole heating cycle. According to the aerosol generating device and system and the control method, the first heater is controlled to conduct main heating, the second heater is controlled to conduct auxiliary heating, the aerosol generating product can be fully baked, the release amount of the aerosol is increased, and the aerosol is slowly released.

The invention relates to the technical field of melting furnace combustion control, in particular to a visual identification-based natural gas spray gun angle adjusting system for a melting furnace, which determines the actual auxiliary heating temperature according to the real-time glass liquid temperature and the main heating temperature so as to determine the heat loss equivalent, and determines whether to adjust the spray gun angle according to the fluidity. And after a simulated auxiliary heating temperature is determined according to a judgment result of adjusting the angle of the spray gun in combination with the heat loss equivalent, an angle adjusting strategy is determined through a melting furnace simulation module to control an angle adjusting device to adjust the flame spraying direction, so that the adjusted auxiliary heating temperature is higher than the auxiliary heating temperature before adjustment. According to the invention, the flame spraying angle of the spray gun is automatically adjusted and monitored in real time according to the multi-dimensional data of the glass melting furnace, so that the glass clarifying and homogenizing efficiency is optimized.

The invention provides a method suitable for an environmental bin heating test, and belongs to the technical field of environmental bin heating test, the method comprises the steps: determining a temperature measurement position through a graph theory topology optimization sensor arrangement algorithm, constructing a temperature field graph, configuring a Beckfu controller to collect temperature data at high frequency, and carrying out sliding window statistical test processing; a high-power main heater and a low-power auxiliary heater are installed at the top and the bottom of the environment bin respectively to form a closed-loop circulation system, temperature control partitions are divided according to the temperature deviation value, and a fuzzy sliding mode variable structure control algorithm is adopted to calculate partition heater control instructions. A control instruction is input into the thermal field dynamic balance optimization model for global collaborative optimization, an optimal power distribution scheme is output, a variable-power staged heating strategy is executed to achieve rapid temperature rise and fine temperature adjustment, and the technical problem that the test precision is reduced due to uneven temperature field distribution in the environment bin heating test process is solved.

The invention discloses a digital twin heat pump heat recovery control method and system for a tea beverage process. The method comprises the following steps: establishing a physical model and an energy transfer model based on each key unit parameter of a heat recovery system in a tea beverage process, and constructing a corresponding digital twin platform; sensors are installed on key units of a heat recovery system in the tea beverage technology, and operation state data are collected and uploaded to a digital twin platform; performing online simulation and prediction on real-time data by using a digital twin model; based on a model predictive control algorithm and self-adaptive adjustment, optimally controlling operation parameters of a heat pump unit, a medium flow rate, a heat exchanger state and starting and stopping of an auxiliary heating / cooling unit, and achieving control targets of maximum recovery of waste heat and precise satisfaction of a process temperature; and the optimized control instruction is fed back to the field control unit to realize closed-loop regulation and control. Refined and intelligent control over the heat recovery process of the heat pump in the tea beverage technology is achieved, the waste heat utilization rate and the system energy efficiency are greatly improved, and the operation cost is reduced.

A novel furnace door heating apparatus and a horizontal sintering furnace thereof are provided. The novel furnace door heating apparatus includes: a main heating body, the main heating body includes a first main heating body, a second main heating body, and a third main heating body, the first main heating body and the second main heating body are arranged opposite to each other in the X-axis direction, and the third main heating body is arranged at a bottom position of the first main heating body and the second main heating body in the Z-axis direction; and auxiliary heating bodies, the auxiliary heating bodies are arranged in two end regions of the main heating body in the Y-axis direction, and both are arranged adjacent to the main heating body. The two end regions of the main heating body in the Y-axis direction are provided with the auxiliary heating bodies.

The present invention provides a heat treatment device for high-yield-strength ratio tire bead wire, comprising a heat treatment support group and a heat treatment assembly. A base is provided on one side of the heat treatment support group, a pair of horizontally arranged cross frames are connected to the top of the base, and a heat treatment assembly is provided between the pair of cross frames. The present invention uses a heating roller to transport the steel wire. After the external electric heating plate at the top of the inner cavity of the upper heating cover is powered on, the steel wire transported into the top of the inner cavity of the heat treatment assembly is heated. The electric heating controller controls the internal electric heating plate to perform heating, thereby increasing the temperature of the heating roller body and providing auxiliary heating for the transported steel wire, thereby improving the heating efficiency of the steel wire. When the steel wire is transported to the bottom of the heating roller, it is immersed in the quenching liquid filled in the inner cavity of the lower heating cover for quenching treatment, thereby greatly improving the practicality of the heat treatment.

The utility model discloses a split type multi-combined supply central air-conditioning system driven by solar energy, and belongs to the technical field of cooling and heating equipment. The system comprises a lithium bromide absorption refrigeration type host, a solar heat collector, a refrigeration water tank, a heating water tank, a plate heat exchanger, a fuel cell, a cooling tower, a wall-hanging stove and a fan pipe disc, wherein the lithium bromide absorption refrigeration type main machine absorbs heat energy provided by solar energy through lithium bromide, and the circulation process of refrigeration or heating is completed; water is heated by solar energy absorbed by the solar heat collector and fed into the heating water tank through a pipeline to be heated by the system. The plate heat exchanger is responsible for heat exchange between the lithium bromide absorption refrigeration host and the heating water tank; the fuel cell supplies power to the system, and the wall-hanging stove assists in heating the heating water tank. The cooling tower is used for dissipating heat of the lithium bromide absorption refrigeration host; cold water in the refrigeration water tank is dissipated into a room in an air mode through the fan pipe disc so that the system can conduct refrigeration.

The utility model is suitable for the field of heat pumps, and provides an air source heat pump water heater heat exchanger which comprises a water heater and an auxiliary heater. The water heater comprises an evaporator and a heat exchanger; a liquid storage tank and an expansion valve are sequentially arranged on a pipeline between the heat exchanger and the evaporator in the flowing direction of the liquid refrigerant; a gas-liquid separator and a compressor are sequentially arranged on the other pipeline between the evaporator and the heat exchanger in the flowing direction of the gaseous refrigerant; an auxiliary heater is further arranged on the cold water inlet pipe in series in the direction of injecting water into the heat exchanger. The water heater further comprises an intelligent controller which is electrically connected with the water heater and the auxiliary heater. The water heater and the auxiliary heater are used in cooperation, and the problems that a traditional water heater is difficult to operate at low temperature, frosts at low temperature and is low in water outlet temperature are solved; under the regulation and control of the intelligent controller, the water temperature in the water storage tank can be always kept in a required temperature interval.