49results about How to "Increase temperature rise rate" patented technology

The invention discloses a method for quickly screening and detecting azo dyes forbidden in textile materials, leathers and dyes using gas chromatography mass spectrometry, which comprises the following steps: 1) preparing a sample, 2) subjecting the sample to reduction reaction, 3) extracting the sample, 4) performing the gas chromatography mass spectrometry on the sample, 5) screening decision: compared with the GC-MS analysis result of a standard solution, if the retention time and the mass spectrum of the aromatic amine in the sample keep with standards, the sample is judged as a suspicious positive sample, otherwise it is a negative sample and directly judged as a qualified sample. The sample pre-treatment time is shortened, the cost is reduced, the detection time is shortened, the operation step is simple, the operation is convenient, the operation time is short, the operation cost is low, the detection efficiency is improved; the aromatic amine in the sample is detected by a gas chromatography mass spectrometer, color interference problem is not existed, the sample matrix is effectively prevented from being infected, and the judgment accuracy is high, thus the method is not only suitable for textile materials, but also suitable for other products such as leathers and dyes.

The invention discloses a fan heater control method and device, a fan heater and a storage medium. The method comprises the steps that the ambient temperature is sampled according to the preset period; the temperature value obtained after sampling is compared with the preset temperature value, and a temperature control signal is obtained; and the heating body powder and the fan rotating speed are adjusted according to the temperature control signal. By the adoption of the technical scheme, the temperature rising speed is increased, the control accuracy is improved, and the control frequency is lowered.

The invention discloses an energy-saving type quick start method for a supercritical unit or an ultra-supercritical unit. According to the method, steam from another resource is used for heating supplied water so that a boiler can be indirectly heated, and the thermal stress of a heated surface is reduced when the boiler is started so that the heating rate of the boiler can be improved; meanwhile, the heated high-temperature supplied water is converted into steam-liquid two-phase flow through throttling and pressure reduction, the flowing scouring action of the steam-liquid two-phase flow is far superior to the effect of thermal-state washing, and in other words, the boiler can complete thermal-state washing under the non-ignition condition, and can preheat the whole heated surface before ignition till certain pressure is reached. After ignition of the boiler, due to the fact that enthalpy of subcooling on an inlet of a water wall is eliminated, the problem of water power can be readily solved and the input speed of fuel can be increased. Meanwhile, by adjusting the open degree of a turbine bypass valve, the flow, the temperature rising speed and the pressure rising speed of main stream and reheat steam are controlled, and the temperature rising speed of the heated surface of the boiler is increased; when the temperature of the main steam and the temperature of the reheat steam are larger than the temperature of a turbine heating valve, valve heating is started, and a main machine can early satisfy the impulse starting condition.

The invention discloses a battery self-heating and heat preserving device. The battery self-heating and heat preserving device comprises a power battery monomer, a heating diaphragm, an aerogel shell,a temperature sensor and a switching circuit. The outer surface of the power battery monomer is coated with the heating diaphragm. The outer surface of the heating diaphragm is coated with the aerogel shell. The temperature sensor is arranged on the power battery monomer, and the temperature sensor is arranged between the power battery monomer and the heating diaphragm. The temperature sensor andthe switching circuit are connected by a signal line. Every two of the power battery monomer, the heating diaphragm and the switching circuit are connected with each other. The switching circuit is used to connect the power battery monomer and the heating diaphragm to form a heating hoop. The heating diaphragm is used to generate heat by the Joule heat effect and heat the power battery monomer bythe heat conduction effect. By adopting the battery self-heating and heat preserving device provided by the invention, batteries can be efficiently self-preheated and kept warm under low temperatureconditions, and the charging and discharging performance of batteries can be enhanced.

The invention discloses an externally heated heat loading device capable of rapidly heating. According to the externally heated heat loading device capable of rapidly heating, a reflector is formed by connecting and closing a plurality of reflector units together, and the radial section of each reflector unit is circular-arc-shaped; a plurality of vertical lamp tubes are mounted in the vertical inner cavity of the reflector; the plurality of lamp tubes correspond to the plurality of reflector units one to one; the positions of the lamp tubes are arranged within the corresponding regions of cambered grooves formed in the inner sides of the corresponding reflector units; the plurality of lamp tubes are evenly distributed in a virtual and encircled manner to form a space for holding materials to be heated; the reflector and all the lamp tubes are all arranged in a cylinder which is vertical and open in upper and lower ends; the two ends of each lamp tube are electrically connected with two conducting rings by use of lamp tube clamps; the lamp tube clamps all penetrate through the cylinder. The externally heated heat loading device capable of rapidly heating is provided with the reflector for inwards reflecting light emitted by the lamp tubes to the outside, and therefore, the heat utilization rate of the lamp tube is increased; meanwhile, due to the adopted radiant heat conduction manner, the device has the heat loading capability with high temperature rise rate and high heating temperature and is capable of meeting the requirements of the high temperature rise rate and high temperature loading.

The invention relates to a fuel cell system and a low-temperature starting control method thereof. In the low-temperature starting process, the voltage of a galvanic pile is controlled in a staged mode through an electronic load, the output current of the galvanic pile is controlled in a staged mode, a drying film can absorb generated water easily, the performance of the galvanic pile is improved, and the heat yield of the galvanic pile is further increased by controlling the voltage of the galvanic pile. The galvanic pile is heated, and pore spaces of the catalyst layer and the diffusion layer are fully utilized; besides, the generated electric energy is directly supplied to the PTC to heat the cooling liquid, and in order to prevent the PTC from being overheated and discontinuously starting a water pump, the opening degree of a thermostat is controlled to enable the fuel cell system to work in a small cycle, and the PTC directly heats the cooling liquid. Compared with the prior art, quick start of the fuel cell in a low-temperature environment is facilitated, the low-temperature starting success rate of the fuel cell is improved, and the service life of the fuel cell at a low temperature is prolonged.

The invention discloses a heat pump type tobacco dryer and a control method thereof, which are used for solving the problems that tobacco leaves crack and the baking effect is not ideal due to the fact that the temperature rise of the dryer is too fast. The control method of the heat pump type tobacco dryer comprises the steps that the actual temperature of a curing barn is obtained, the operation frequency of a compressor is controlled according to the difference value of the set temperature and the actual temperature of the curing barn, the temperature rise rate of the curing barn is increased in a staged mode by controlling the operation frequency of the compressor, and the temperature of the curing barn reaches a target temperature interval. The temperature rise rate of the curing barn is increased in stages, operation of the compressor is controlled through different strategies according to the current curing barn dry-bulb temperature average value and the preset curing barn temperature critical value, the temperature rise speed of the curing barn can be prevented from being too high, and the curing barn is prevented from being too hot in the temperature drying stage.

The invention discloses a method for controlling the output of a coal mill in the ignition process of a boiler. According to the method, in the starting ignition process of the boiler of a power station, a raw coal hopper supplies raw coal to a coal feeder, the coal feeder quantitatively supplies the raw coal to the coal mill, the coal mill grinds the raw coal into pulverized coal which is carriedinto a separator by primary air, qualified pulverized coal is screened by the separator, is brought into a combustor by the primary air, and enters a boiler hearth through a nozzle of the combustor to be combusted; the output of the coal mill can be adjusted through adjustment of the rotating speed of the coal mill according to the positive correlation between the rotating speed of the coal milland the output; a high-voltage variable-frequency speed regulation device is used for controlling the rotating speed of the coal mill, so that the rotating speed can be continuously increased and decreased in the one-time ignition process, and the rotating speed of the coal mill is controlled to be changed according to different stages of ignition. According to the method, the high-voltage variable-frequency speed regulation device is used for controlling the rotating speed of the coal mill, continuous change of the rotating speed of the coal mill can be controlled without modifying the interior of the coal mill, and the reduction capacity and the regulation capacity are achieved.

The invention discloses an on-line environment high-temperature test chamber for an aviation kerosene hydraulic pump, which includes a chamber body (24), wherein a working chamber (6) is arranged inside the chamber body (24); the working chamber (6) is connected with a testboard (21) through a pipeline interface A (12); a pressure release door (7) is arranged at the upper part of the chamber body (24); an explosion venting box (8) is arranged above the pressure release door (7); an explosion-proof heater (15), an explosion-proof blower (1) and a water cooler (16) are arranged at the lower part of the chamber body (24) side by side; and the chamber body (24) is connected with a testboard transmission device (17) through a sealing head (20). The on-line environment high-temperature test chamber provided by the invention has the characteristics of high temperature, big temperature rise velocity, explosive prevention and explosive resistance, and can meet the requirements of an on-line working condition test of the aviation kerosene hydraulic pump with high temperature, big temperature rise velocity and high possibility of explosion.

The invention discloses a low-temperature battery hybrid self-heating device and a self-heating method based on the same, and belongs to the technical field of lithium ion battery self-heating. Two heat sources of a battery and a transistor are arranged and jointly heat a low-temperature battery, on one hand, a transistor driver controls the transistor to generate heating current, and the heatingcurrent flows through the battery to generate self-heating heat in the battery. On the other hand, the transistor is controlled to work in the heating area, and the transistor generates heat. Heat ofthe transistor is transmitted to the battery through the hot plate to jointly heat the battery with heat generated in the battery, a hybrid heating mode of battery internal self-heating and transistorloop heating is formed, and rapid self-heating of the low-temperature battery is realized. The device can fully utilize the self-heating of the battery and the heat generated in the heating loop, sothat the energy efficiency of the self-heating device is greatly improved, and the energy loss is extremely low.

The invention discloses a temperature return control method and device, a storage medium and an air conditioner. The method comprises the following steps that a first human body comfortable region temperature of the space to which the air conditioner belongs is obtained when the air conditioner enters defrosting; when the air conditioner quits the defrosting, a second human body comfortable regiontemperature of the space to which the air conditioner belongs is obtained; a temperature difference absolute value between the second human body comfortable region temperature and a target comfortable region temperature is determined; and according to the first human body comfortable region temperature and the temperature difference absolute value between the second human body comfortable regiontemperature and the target comfortable region temperature, the compressor running frequency and / or the fan rotating speed of the air conditioner after the air conditioner quits the defrosting is controlled, and therefore temperature return control over the air conditioner is achieved. According to the scheme, the problem that the comfort of a user is affected due to the fact that the ran temperature return time of the running frequency during normal heating is longer after the defrosting is completed can be solved, and the effects of shortening the temperature return time and improving the comfort of the user are achieved.

The invention discloses a cooling system for a vehicle. The cooling system for the vehicle comprises a high-temperature cooling loop and a low-temperature cooling loop, wherein the high-temperature cooling loop comprises an engine water jacket; a water outlet 1 of the engine water jacket is connected with a high-temperature heat radiator and a warm air core body; the high-temperature heat radiatorand the warm air core body are connected with two water inlets of an electronic thermostat; a water outlet of the electronic thermostat is connected with an inlet of a high-power electronic water pump. a water outlet of the high-power electronic water pump is connected with a water inlet of the engine water jacket; a water outlet 2 of the engine water jacket is connected with the other water inlet of the high-power electronic water pump through an engine oil cooler; a low-temperature heat dissipation loop comprises a low-power electronic water pump; a water outlet of the low-power electronicwater pump is connected with water inlets of a water-air intercooler and a turbocharger; water outlets of the water-air intercooler and the turbocharger are connected with a water inlet of a low-temperature heat radiator; and a water outlet of the low-temperature heat radiator is connected with a water inlet of the low-power electronic water pump. The cooling system for the vehicle is beneficial for increasing the temperature rise rate of an engine and reducing the pollutant emission.

The invention discloses an internal heat type heat loading device capable of heating up rapidly. Two horizontal lamp tube integrated boards are fixedly connected by a vertical connecting rod; a plurality of vertical lamp tubes are installed between two lamp tube integrated boards and are uniformly distributed around a virtual circle; two wiring terminals at two ends of each of the plurality of lamp tubes are connected with the two lamp tube integrated boards; the two lamp tube integrated boards are provided with wiring terminals for an externally connected power supply; a reflection board is formed by connecting and closing a plurality of reflection board units with radial circular arc cross sections; the plurality of reflection board units are in one-to-one correspondence with the plurality of lamp tubes; the lamp tubes are coaxial to the reflection board units and are positioned in arc-shaped groove regions at the outer sides of the corresponding reflection board units; the reflection boards and all the lamp tubes are all arranged in vertical casing pipes. According to the heating device, light rays emitting from the inner sides of the lamp tubes are reflected outward by the reflection board, so that the heat utilization ratio of the lamp tubes is increased; meanwhile, a radiation heat condition mode is adopted, the internal heat type heat loading device has high heat loading capacity with high temperature rise velocity and high heating temperature.

The invention relates to an aluminum plate, an aluminum strip for a power battery case and a production method thereof. The invention controls the percentages of Si, Fe, Cu, Mn, Zn, and Ti in the aluminum alloy to increase useful components and reduce harmful components; And in the smelting section of the production process, large-scale permanent magnetic stirring equipment is used. The casting process adopts a casting machine with automatic speed regulation system. The uniform heat treatment adopts segmental soaking, strictly controls the temperature of aluminum alloy ingots, hot rough rolling for 11 passes, and the finished product is annealed. The electric annealing furnace is used in the workshop; during the whole production stage, the temperature of the aluminum alloy is strictly controlled to prevent the coarse grain of the material during the production process, and the aluminum plate and aluminum strip produced have good deep drawing and tensile properties.

The rubber powder plasticizing apparatus as one waste rubber product recovering machine features that inside the high speed shearing and stirring tank, there are three layer stirring knifes and impacting blocks in different forms, crossed positions and different rotation radii. The tank is one sandwich structure, and outside the tank, there are 2-4 slow cooling pots with sandwich casing and inside stirring knifes. The present invention is used in plasticizing crushed recovered rubber powder and has high plasticizing effect and high production capacity.

The invention relates to main gas equipment used for cooling in kitchen set, and discloses an environmental-friendly energy-saving gas cooking oven used for cooking. The environmental-friendly energy-saving gas cooking oven used for cooking comprises an oven body framework and a cast iron pan installed on the oven body framework. Thin-wing fins are arranged on the outer wall at the bottom of the cast iron pan. A fireproofing material thermal-insulating layer is arranged in the oven body framework. A full-premixed burner is installed in the middle of the fireproofing material thermal-insulating layer, a smoke reversing overflowing inner layer surrounding frame is further arranged on the fireproofing material thermal-insulating layer, and the smoke reversing flowing inner layer surrounding frame comprises an annular frame outer wall and a frame bottom. According to the environmental-friendly energy-saving gas cooking oven used for cooking, strong-burned high-temperature smoke waste heat is utilized, the heat absorption area of the cast iron pan is enlarged through combined and cross thin-wing fins, and the waste heat is recycled and utilized through a smoke reverse returning overflowing damp gathering circulating recycle way and a bottom radiation net. The comprehensive combustion efficiency is improved, and the problems that a gas cooking oven is in a traditional backward and confused situation that the consumption amount is high, the energy efficiency is long and the environment protection effect is bad for a long time is solved. The environmental-friendly energy-saving gas cooking oven used for cooking has the advantages of being small in energy consumption amount, high in energy efficiency and capable of protecting environment and saving energy and the like.

The invention relates to the technical field of vehicles, in particular to a fuel cell low-temperature starting control system and method. The control system comprises a cooling liquid loop and an air loop, wherein the cooling liquid loop comprises a cooling liquid pipeline, a high-pressure water pump, a first three-way valve, a heater and a thermostat; the air loop comprises a heat exchange device, an air pipeline, a throttle valve, a second three-way valve, an intercooler and an air compressor, high-temperature air generated by the air compressor can flow into the heat exchange device to be communicated with the air pipeline so as to heat the fuel cell, and the heater can also achieve the purpose of heating the fuel cell by heating the cooling liquid; compared with the prior art, the temperature rise rate of the fuel cell during low-temperature starting can be improved under the condition that high-power components are not increased, and normal operation of the fuel cell is ensured.

The invention discloses an energy-saving type quick start method for a supercritical unit or an ultra-supercritical unit. According to the method, steam from another resource is used for heating supplied water so that a boiler can be indirectly heated, and the thermal stress of a heated surface is reduced when the boiler is started so that the heating rate of the boiler can be improved; meanwhile, the heated high-temperature supplied water is converted into steam-liquid two-phase flow through throttling and pressure reduction, the flowing scouring action of the steam-liquid two-phase flow is far superior to the effect of thermal-state washing, and in other words, the boiler can complete thermal-state washing under the non-ignition condition, and can preheat the whole heated surface before ignition till certain pressure is reached. After ignition of the boiler, due to the fact that enthalpy of subcooling on an inlet of a water wall is eliminated, the problem of water power can be readily solved and the input speed of fuel can be increased. Meanwhile, by adjusting the open degree of a turbine bypass valve, the flow, the temperature rising speed and the pressure rising speed of main stream and reheat steam are controlled, and the temperature rising speed of the heated surface of the boiler is increased; when the temperature of the main steam and the temperature of the reheat steam are larger than the temperature of a turbine heating valve, valve heating is started, and a main machine can early satisfy the impulse starting condition.

The invention discloses a quick heating device for a water storage type electric water heater. The quick heating device comprises a first inner container, a second inner container, a hot water outflow pipe and an electric heating pipe. The second inner container is accommodated in the first inner container, a flange is detachably arranged on the end cover surface of the first inner container, one end of the electric heating pipe is connected to the flange, the other end of the electric heating pipe and a water inflow end of the hot water outflow pipe are inserted in the second inner container so as to form a concentrated heating area, water can obtain large heat energy in a small area within short time, water outflow temperature is increased rapidly, and waiting time is saved. The second inner container is detachably arranged on an inner wall of the first inner container and is further provided with a plurality of convection holes, the delaying effect on water flow can be achieved, the water can continuously flow into the second inner container to be effectively heated, and heating efficiency and temperature rising rate are effectively improved.

The invention discloses a method for quickly screening and detecting azo dyes forbidden in textile materials, leathers and dyes using gas chromatography mass spectrometry, which comprises the following steps: 1) preparing a sample, 2) subjecting the sample to reduction reaction, 3) extracting the sample, 4) performing the gas chromatography mass spectrometry on the sample, 5) screening decision: compared with the GC-MS analysis result of a standard solution, if the retention time and the mass spectrum of the aromatic amine in the sample keep with standards, the sample is judged as a suspicious positive sample, otherwise it is a negative sample and directly judged as a qualified sample. The sample pre-treatment time is shortened, the cost is reduced, the detection time is shortened, the operation step is simple, the operation is convenient, the operation time is short, the operation cost is low, the detection efficiency is improved; the aromatic amine in the sample is detected by a gas chromatography mass spectrometer, color interference problem is not existed, the sample matrix is effectively prevented from being infected, and the judgment accuracy is high, thus the method is not only suitable for textile materials, but also suitable for other products such as leathers and dyes.

According to a discrete element particle model theory, the invention includes selecting a tea particle shape, a contact mechanical model and a contact judgment algorithm, and constructing a gas-solidcoupling equation between the fluid and the tea particles; based on a gas-solid coupling equation, verifying the influence of the roller rotating speed, the number of guide vane plates and the rollerinclination angle of the fixation machine on the porosity of tea particles, the water content of tea, the temperature rise rate and the dehydration rate in the fixation process; analyzing main factorsinfluencing the fixation effect to obtain a tea fixation optimization evaluation standard, and optimally designing the mechanical structure and motion parameters of the fixation machine.

The invention relates to a tubular cracking furnace. The tubular cracking furnace comprises a radiation cavity furnace lining for limiting a radiation cavity, and a furnace tube assembly arranged in the radiation cavity, wherein at least one reflection component for reflecting heat radiation in the radiation cavity to the furnace tube assembly is arranged on an inner side wall of the radiation cavity furnace lining. According to the tubular cracking furnace provided by the invention, cracking reaction can be remarkably accelerated.

The invention discloses a quartz lamp for high-power high-overload environments. The quartz lamp comprises a porous quartz tube, a plurality of heating wires, leads and press sealing plates, wherein the heating wires are mounted in the porous quartz tube; the leads are respectively connected with two ends of each heating wire; the press sealing plates are used for packaging two ends of the poroustube; a plurality of clamping points are arranged on the inner tube wall of the porous quartz tube; a groove is formed, at each clamping point, in the inner part of the porous quartz tube; a retainerfor limiting the corresponding heating wire to move along the axial direction of the quartz lamp is mounted in each groove; and the retainers are sleeved on the heating wires and connected with the heating wires. Through the setting of the plurality of clamping points and the retainers, the retainers are limited to move in the tube wall, so that double-end stress of the heating wires is avoided, multi-point stress is realized and tensile strength of lamp filaments at two ends is shared to the greatest extent; and by adoption of the quartz lamp, the warming speed can be improved, so that the rapid temperature change requirement of transient high-temperature heat centrifugal test can be satisfied.

The invention discloses a vehicle fan heater motor, which comprises an outer cover, wherein a transverse motor is arranged in the outer cover, a first rotating shaft is arranged in the motor, coolingfins are arranged on the outer side of the motor in the axis direction of the first rotating shaft, first fan blades are arranged at the left end and the right end of the first rotating shaft, each first fan blade is composed of a disc-shaped whole, a plurality of gaps are symmetrically formed in the center of the middle and rotate in the direction of the first rotating shaft, air on the two sidesof the first fan blades forms airflow to accelerate air flowing, and the end of the first rotating shaft is connected with a bevel gear set. According to the invention, air in the outer cover is fully mobilized through air inlets and air outlets which are reasonably distributed, and the fan blades are driven by the motor to rotate, so that air flow can be accelerated while heat dissipation is performed on the motor; and auxiliary heating is performed by using the heating wires so that the indoor air temperature rise rate can be accelerated.

The invention provides an air conditioner control method and device, a storage medium and an air conditioner. The air conditioner control method comprises the steps that after the air conditioner starts a heating mode, the air conditioner enters into a preset control mode; under the preset control mode, the current indoor environment temperature and the current indoor heat exchanger temperature ofthe air conditioner are obtained; and the operation frequency of a compressor and / or the opening degree of a throttling device of the air conditioner are / is adjusted according to the obtained currentindoor environment temperature and the current indoor heat exchanger temperature. According to the air conditioner control method, the serious layering phenomenon of hot and cold air in the staring initial stage of the air conditioner heating mode can be weakened, and the uniformity of overall temperature distribution of a room is improved.

The invention discloses a constant temperature and efficient regeneration system, which comprises a regeneration demineralization water tank and a fixed base, the regeneration demineralization water tank comprises a water tank body and a heat preservation shell, the water tank body is located in the heat preservation shell, a heating device is arranged between the water tank body and the heat preservation shell, and the heat preservation shell is clamped with the fixed base. The installation method includes the following steps that (1) the assembly of the fixed base is conducted; (2) the installation of a water distribution pipe shaped like a Chinese character 'Mi' and a stirring assembly is conducted; (3) the installation of a cover cap and the water tank body is conducted; (4) the installation of the heating device is conducted; and (5) the assembly of the regeneration demineralization water tank is conducted. According to the installation method, the water tank body is protected through the heat preservation shell, at the same time, the heat loss rate of brine in the water tank body can be reduced, and the loss of energy consumption is reduced; the heating device can replace theheat of the brine through a heat exchange medium, make the brine rise to the optimum temperature, the regeneration effect of a bed body is improved; and the fixed base can raise the regeneration demineralization water tank, at the same time, can also adjust the height of the regeneration demineralization water tank according to the actual level of the ground, and ensures the overall level of thefixed base.

The invention discloses a structure-optimized carbon-containing pellet for a rotary hearth furnace. The structure-optimized carbon-containing pellet for the rotary hearth furnace comprises a pellet body, grooves are formed in the surface of the pellet body, and the pellet is prepared from blast furnace cyclone ash, steelmaking primary ash, steelmaking dephosphorization ash, steelmaking decarburization ash and a mixture. According to the structure-optimized carbon-containing pellet for the rotary hearth furnace, the hemispherical grooves are machined in the end faces of the long axis and the short axis of the ellipsoidal pellet body, the radiation capacity of the pellet towards the outside is greatly improved, the temperature rise rate of the center of the pellet is accelerated, meanwhile,structural optimization and improvement are simple and reasonable, manufacturing is convenient, the production efficiency is greatly improved, the manufacturing cost is reduced, and the utilization rate of the carbon pellet is increased.

The invention relates to a non-contact power battery impedance measuring and charging device. A charging relay and a first rectifier filter are connected in series and then are respectively connectedwith an impedance measuring relay in parallel, the first end of the impedance measuring relay after parallel connection is connected with a receiving coil, and the other second end is connected to a plurality of battery module selection switches. The battery impedance is measured by using the alternating current in the non-contact power battery charging device and the power battery is heated, so that the battery impedance is measured by using the wireless charging equipment, the charging current and voltage of the battery can be updated in real time according to the battery impedance measuredin real time, and the optimal current and voltage charging is realized. Real-time updating of the power battery parameters can be updated in real time according to the battery impedance measured in real time, and estimation of the power battery state parameters is more accurate. The alternating current heating frequency, current and power parameters of the battery can be updated in real time according to the battery impedance measured in real time, the variable frequency heating temperature rise rate is higher, and the control accuracy is high and simple.

The invention relates to a thermal management system and a new energy automobile. The system comprises a plurality of heaters, a switching assembly, a heat exchanger and a plurality of to-be-heated parts; one heater, the switching assembly, the heat exchanger and one to-be-heated part are sequentially connected through a pipeline to form a heating loop. According to the system, the charging and power performance of the new energy automobile can be improved in a low-temperature environment, the temperature rise rate is increased, and the vehicle use experience of customers is improved.