42results about How to "Increase heating rate" patented technology

The invention relates to an electric vehicle hybrid power assembly thermal management system based on an amorphous alloy material and a control method, and belongs to the field of new energy vehicle thermal management. The system comprises a motor, an engine, a condenser, a radiator, an air conditioning box, a refrigeration heat exchanger, a liquid cooling plate, a power battery and a heating device. The method comprises the following steps of: judging comparison conditions of a current external environment temperature and a preset low-temperature threshold value and a preset high-temperature threshold value, and corresponding to three working modes; in the first mode, a battery needs to be heated, and a motor / engine needs to be cooled; in the second mode, the battery does not need heat management temporarily, and the motor / engine needs heat dissipation; and in the third mode, the battery and the motor / engine need to be cooled. According to the heating method, the heating device works with high heating power at the extremely low temperature, and the heating device works with low heating power at the low temperature. The system has the advantages that the low-temperature heating rate is high, the integrated heat management configuration is simplified, and the system is suitable for new energy vehicle types in various power forms.

The application discloses a reaction device for preparing high-purity lithium carbonate, which comprises a calcination device base, a calcination furnace support frame is fixedly installed on the top surface of the calcination device base, a movable assembly is movably installed on the top surface of the calcination device base, an automatic discharging assembly is fixedly installed on the top surface of the calcination device base, and a collecting assembly is fixedly installed on the side surface of the calcination device base. The automatic discharging assembly is arranged, the rotating screw rod can rotate in the first fixed plate, the moving column can move horizontally on the top surface of the calcination device base, the electric telescopic rod is elongated, the calcination furnace body is driven to ascend as a whole, the connecting shaft is driven to rotate through the third driving device, the sleeve joint ring can be overturned together with the calcination furnace body by a certain angle, the automatic pouring of raw materials can be realized, and manual discharging work is replaced, so that the practicability of the device is improved.

The present invention belongs to the technical field of processing raw materials for jujube wine, and provides a jujube wine raw material crusher, including a shell, the inner wall of the shell is rotatably connected with a screening cylinder, and the screening cylinder can rotate continuously under the drive of a rotating motor; the inner wall of the screening cylinder is rotatably connected with a plurality of screen plates through an elastic torsion spring, and the inner wall of the shell is fixedly connected with an elastically retractable brush plate, and the brush plate can elastically abut against the inner wall of the screening cylinder, and a cleaning mechanism is provided on one side of the brush plate. In the present invention, after the jujube wine raw material is crushed by a crushing roller, the jujube wine raw material falls into a filter plate, and then the crushing roller and the filter plate jointly crush the jujube wine raw material for a second time; at this time, the crushing roller drives the elastic push block to push the block, and the block drives the filter plate to move along the arc groove, and the filter plate swings back and forth along the arc groove under the drive of the elastic rod, and the reciprocating swing of the filter plate can improve the crushing and drying effect of the jujube wine raw material.

The invention relates to the technical field of chemical engineering, and discloses an olefin preparation system. In the olefin preparation system, the raw material fluid and the hot carrier fluid are mixed in the cracking device and are subjected to cracking reaction to obtain the cracking fluid to prepare the product olefin, so that the heating rate and the heating temperature of the raw material fluid can be increased, the olefin yield can be increased, and the cracking pressure can be increased; the processing capacity of the equipment is improved and the energy consumption of the system is reduced while the high olefin yield is ensured. The raw material fluid is preheated by the preheating flow path before being mixed with the hot carrier fluid, so that the heating efficiency of the raw material fluid can be improved, heat energy generated by the fractionation device can be fully utilized, and the energy consumption of the system is further reduced. And moreover, the preheated raw material fluid is relatively low in temperature, so that the problem of coking in advance is avoided.

The invention discloses a fuel cell system and a water state control method thereof, and relates to the technical field of fuel cells, the system comprises a fuel cell stack, and a bipolar plate of the fuel cell stack is internally provided with a cooling liquid flow channel for introducing a cooling liquid with a set temperature; a magnetic heat conversion device is arranged on the outer side of the cooling liquid flow channel; the cooling liquid circulation subsystem is communicated with a cooling liquid flow channel in the fuel cell stack through a pipeline; and the water state control subsystem can monitor the temperature of the cooling liquid entering and exiting the fuel cell stack and the spatial distribution of different forms of water in the fuel cell stack, and respectively controls the working state of the cooling liquid circulation subsystem and the working state of the magnetic-thermal conversion device according to the temperature and water state distribution information. According to the fuel cell system and the water state control method thereof, the uniform distribution of water states between single sheets and in the sheets in the low-temperature rapid cold start and normal operation process can be realized, the occurrence of local water flooding or film drying faults is avoided, the output performance of the fuel cell system is improved, and the service life of the fuel cell system is prolonged.

The invention discloses an efficient fuel gas heating system. The heating system comprises a fuel gas / combustion-supporting gas ratio control system, an automatic ignition system, a combustion torch fixing support, a lifting moving platform, an annular combustion torch and a detection control system. The combustion torch, the combustion torch fixing support and the lifting moving platform are sequentially and fixedly connected from top to bottom. The lifting moving platform can move and lift; the fuel gas / combustion-supporting gas ratio control system is used for connecting a fuel gas source and a combustion-supporting gas source and adjusting the ratio of fuel gas to combustion-supporting gas to an optimal mixing ratio; the automatic ignition system is connected with the fuel gas / combustion-supporting gas ratio control system and the detection control system and used for achieving ignition of the combustion torch. And the detection control system is used for controlling the automatic ignition system and the fuel gas / combustion-supporting gas ratio control system. The heating system has the characteristics of sufficient combustion, high efficiency, high heat flux density, uniform heating, high temperature of the heating end and adjustable height position of the combustion torch.

The application discloses a kind of oil exploitation method and device for strengthening the rate of horizontal well group heat mass transfer, the method comprises: when meeting preset heating condition, start heating, at this time, close the production well in the horizontal well group, open the injection well in the horizontal well group, open the electric heater arranged in the injection well, and inject hot gas into the injection well, wherein the heating condition comprises: the daily gas production of the production well is less than the preset production value and the horizontal well group produces horizontal fracture and / or vertical fracture meeting the requirements;After heating is completed, the injection well is closed, the production well is opened, and oil exploitation is started.The application proposes a synergistic heating method combining electric heating and hot gas injection, and uses a cyclic production mode, significantly improves the reservoir heating rate and heat mass transfer efficiency, effectively improves the oil exploitation effect and efficiency of the horizontal well group.

The invention provides a battery heating method, a battery heating system and a vehicle. The method is applied to a vehicle control unit in a battery heating system of a vehicle, the battery heating system further comprises a motor, a compressor and a compressor, the vehicle control unit is in communication connection with the motor and the compressor, and a refrigerant is used for heat conduction; the method comprises the steps that under the condition that it is determined that a battery pack of a vehicle is heated, the current state information and the environment temperature of the vehicle are determined; a locked-rotor strategy is determined according to the environment temperature and the state information, the locked-rotor strategy is used for controlling target locked-rotor objects in the battery heating system to enter a locked-rotor mode, and the target locked-rotor objects are one or more of a motor and a compressor; and controlling the target locked-rotor object to enter a locked-rotor mode according to the locked-rotor strategy, so that the refrigerant carries heat generated by the target locked-rotor object in the locked-rotor mode to the battery pack to heat the battery pack. The battery pack can be heated in a low-temperature environment without installing a heating element.

The utility model discloses a waste water desalination evaporator which comprises a storage bin, a dredging pipe is fixedly installed at the top of the storage bin, a drainage seat is fixedly installed at the output end of the dredging pipe, a plurality of sets of heating rings are sequentially installed on the outer surface of the storage bin from bottom to top, and a fixed power source is fixedly installed on the inner wall of each heating ring. An electric heating ring is electrically installed on one side of the fixed power source, the electric heating ring penetrates through the interior of the storage bin, a glass cover is installed at the top of the storage bin in an embedded mode, a liquid injection connector is formed in the outer surface of the glass cover, and a drainage fan is fixedly installed on the inner wall of the drainage base. Through cooperation of the heat preservation structure, the waste water in the storage bin can be heated in a balanced mode, it is guaranteed that the waste water in the device is heated and evaporated in a balanced mode, the condensation phenomenon in the steam conveying process can be guaranteed through the arrangement of the heat preservation structure, and then it is guaranteed that the device conducts efficient waste water desalination and evaporation work.

The utility model provides a neodymium iron boron hydrogen demolishing reaction system which comprises a hydrogen demolishing furnace, the hydrogen demolishing furnace comprises a furnace body, a first inner cavity and a second inner cavity are arranged in the furnace body, the first inner cavity is embedded in the second inner cavity, a closed circulation channel is formed between the first inner cavity and the second inner cavity, and the first inner cavity is communicated with the second inner cavity. The circulating channel is used for being filled with heating or cooling fluid to heat or cool the first inner cavity, the first end of the furnace body communicates with the circulating channel, and the second end of the furnace body communicates with the first inner cavity; the heat preservation part is arranged on the peripheral side of the furnace body and comprises a driving mechanism, a first heat preservation part and a second heat preservation part, when the first inner cavity is heated, the first heat preservation part and the second heat preservation part wrap the outer surface of the furnace body through the driving mechanism, and when the first inner cavity is cooled, the first heat preservation part and the second heat preservation part wrap the outer surface of the furnace body through the driving mechanism. The first heat preservation part and the second heat preservation part are far away from the outer surface of the furnace body through the driving mechanism.

The application relates to a liquid rocket engine test heating device, in particular to a liquid rocket engine inner cavity induction heat accumulation type hot nitrogen gas supply device and method, and solves the technical problem that the existing low-temperature liquid rocket engine usually adopts an external hot air forced convection or electric heating wire heating nitrogen gas mode to heat the pipeline and the engine inner cavity nitrogen gas, and it is difficult to meet the low-temperature liquid rocket engine pipeline and engine inner cavity rapid temperature recovery requirement. The liquid rocket engine inner cavity induction heat accumulation type hot nitrogen gas supply device comprises a heating unit, a pressure monitoring unit, a temperature monitoring unit and a control unit; the heating unit comprises a buffer tank and a heating assembly arranged on the buffer tank; an air inlet of the buffer tank is used for being connected with an air source; the pressure monitoring unit and the temperature monitoring unit are arranged on the buffer tank and are connected with the control unit respectively; and the control unit is used for controlling the heating assembly to work according to the inner cavity nitrogen gas temperature and the outer wall temperature of the buffer tank.

The invention discloses a control method and device of a cooling fan, an integrated cooker and a storage medium, and relates to the technical field of artificial intelligence. Comprising the steps that in a current task period, the current temperature in a steaming oven is obtained through a first temperature sensor, and the current heat dissipation temperature of a heat dissipation fan is obtained through a second temperature sensor; according to the current temperature in the box and the current heat dissipation temperature, the current rotating speed value of the heat dissipation fan in the current task period is determined; and the cooling fan is controlled to operate based on the current rotating speed value, so that the temperature in the oven reaches the target temperature value when the steaming oven is in the preset time. According to the technical scheme, the rotating speed of the heat dissipation fan can be accurately adjusted in advance, the defect that in the prior art, heat dissipation cannot be judged in advance, and hysteresis exists can be overcome, when the temperature in the box is low, heat cannot be wasted, and the heating rate of the integrated cooker can be increased; when the temperature in the box rises or rises too fast, the heat dissipation efficiency of the integrated cooker can be improved, and the experience feeling of a user using the integrated cooker is improved.

The invention discloses a reactor cabin temperature and thermal stress distribution test device and a test method thereof. The device comprises a test cabin measuring point module, a heat source control module and a data acquisition module, the test chamber measuring point module comprises a reactor chamber test chamber, strain gauges and thermocouples, and the strain gauges and the thermocouples are distributed on the inner wall and the outer wall of the reactor chamber test chamber; the heat source control module comprises a heater, a temperature controller, a heating controller, a fan and a temperature sensor; the data acquisition module comprises a static strain gauge, a thermocouple signal acquisition card and an upper computer; the static strain gauge is used for acquiring temperature data of the strain gauge and transmitting the temperature data to the upper computer, and the thermocouple signal acquisition card is used for acquiring temperature data of the thermocouple and transmitting the temperature data to the upper computer. The device for testing the temperature and thermal stress distribution of the reactor cabin can detect the overall temperature and stress distribution of the reactor cabin, and provides a test platform for thermal load parameter design of a reactor cabin structure.

The invention provides a liquid crystal display panel and a display device. The liquid crystal display panel comprises a first substrate, a second substrate, a liquid crystal layer and a coil. Wherein the second substrate and the first substrate are oppositely arranged; the first substrate and the second substrate are fixedly connected through the frame glue, and the first substrate, the second substrate and the frame glue define a containing cavity. The liquid crystal layer is arranged in the accommodating cavity; the liquid crystal layer comprises a plurality of liquid crystal molecules; the coil surrounds the liquid crystal layer; the coil can generate a magnetic field to heat the liquid crystal molecules when electrified. Wherein the coil is arranged around the axis direction of the liquid crystal display panel; the axis direction is parallel to the liquid crystal display panel. According to the liquid crystal display panel, smear and color smear phenomena of the liquid crystal display panel can be avoided, and the display effect of the liquid crystal display panel is effectively improved. In addition, the heating rate of liquid crystal molecules can be effectively increased, and the smear and color smear phenomena are further improved.

A method for preparing gradient MWCNTs-Ti (C, N)-based metal ceramic through spark plasma sintering relates to the field of powder metallurgy and comprises the following steps that S1, N kinds of mixed powder composed of titanium carbonitride, tungsten carbide, cobalt, molybdenum carbide and multi-walled carbon nanotubes are prepared, N is larger than or equal to 3, and the mass percent of the multi-walled carbon nanotubes in the N kinds of mixed powder is changed in a gradient mode; s2, the mixed powder is laid layer by layer according to the change gradient of the multi-wall carbon nanotubes, and the obtained N layers of mixed powder are pre-pressed and formed to obtain a metal ceramic blank; and S3, current is applied to the side, with the lowest multi-walled carbon nanotube content, of the metal ceramic green body, spark plasma sintering is conducted on the metal ceramic green body, and the gradient MWCNTs-Ti (C, N)-based metal ceramic is obtained. The method is used for solving the technical problems that a metal ceramic microstructure is not uniform, and the fracture toughness difference of different positions is large.

The utility model relates to the technical field of hub forging, and discloses an automobile hub forging heating furnace which comprises a base, a heating furnace body is installed at the top end of the base, a heating groove is formed in the top end of the heating furnace body, a groove is formed in the bottom end of the heating groove, and an annular groove is formed in the top end of the inner wall of the groove. The hub raw materials are placed through cooperation of the placing ring and the placing table, the gear motor is used for driving the placing table to rotate, so that the hub raw materials rotate slowly, it is guaranteed that the peripheries of the hub raw materials are evenly heated by the electromagnetic heating pipes, and the hub raw materials are heated evenly through cooperation of the guide ring, the supporting guide rods and the balls. And the placing ring moves up and down synchronously in the rotating process of the placing table, so that the placing ring is separated from the placing table, an empty air channel is formed in the bottom end of the hub raw material, hot air flows at the bottom end of the hub, and the heating rate of the hub raw material is further increased.

This utility model relates to the field of oil production technology and discloses an oil raw material tank, including a tank body, a top cover fixedly connected to the top of the tank body, a connecting seat fixedly connected to the upper surface of the top cover, an oil plug rotatably connected to the outer surface of the connecting seat, and an isolation groove provided inside the tank body. This utility model has the following advantages and effects: the bottom support base provides support for the tank body. Since the oil raw materials stored inside the tank for a long time may solidify, multiple heat-conducting pipes are installed inside the isolation groove. When the oil raw materials need to be discharged, the operator activates the heat-conducting pipes to heat the inside of the isolation groove, thereby gradually raising the temperature of the containing cavity and melting the stored oil raw materials. Furthermore, the heating pipes fixed in the bottom groove inside the bottom support base simultaneously heat the bottom, increasing the heating rate of the oil raw materials inside the tank.

The present invention belongs to the technical field of electric wire tools, and in particular, relates to a large-area fine overprinting mechanism for hardcover notebooks. The present invention comprises an overprinting machine base body, on which a notebook mounting platform is provided, and above which a lifting and pressing plate capable of reciprocating linear motion in a vertical direction is provided. During use, the present invention places the notebook to be hot-stamped on the notebook mounting platform, heats the detachable font hot-stamping assembly by a hot-stamping heating element, applies copper powder and glue to the bottom of the detachable font hot-stamping assembly, and then moves the lifting and pressing plate downward, and places the font on the notebook cover by the detachable font hot-stamping assembly to realize automated large-area hot-stamping. When hot-stamping different fonts is required, the detachable font hot-stamping assembly can be replaced, and different fonts of the same specification can be used to realize hot-stamping of multiple fonts, with uniform hot-stamping, simple and convenient disassembly and assembly, and improved efficiency of font hot-stamping, with high automation and practicality.

The invention relates to the technical field of test instruments, and discloses an electromagnetic object linear expansion tester, which comprises a bottom plate, one surface of the bottom plate is provided with a fixed plate, and one surface of the fixed plate is provided with a heat conduction plate; the heating assembly is used for generating heat and heating the sample through the heat conducting plate; the temperature measuring assembly is used for detecting the temperature change of the sample; the electric lead generates a magnetic field after being electrified; the Hall element is movably arranged at the end of the sample and connected with the power supply assembly, the sample drives the Hall element to move after being heated and expanded, the Hall element output voltage expression and the magnetic field expression are combined, the movement distance of the Hall element is obtained, and the linear expansion coefficient of the sample is calculated. The linear expansion coefficient of the sample is represented through the movement of the Hall element and the change of the Hall voltage, the expansion rule at the normal temperature can be measured, the expansion at the high temperature can also be measured, the application range is widened, and the accuracy is improved.

The invention relates to the field of medical instruments, in particular to a first-aid suspended red blood cell rapid heating device which comprises a box body, a storage box and a refrigerating box are installed in the box body, a storage box for storing suspended red blood cells is fixedly installed in the refrigerating box, and a top opening of the storage box is located in the top position of the box body. The refrigerating box is filled with liquid for cooling the storage boxes, and a conveying pipe provided with an electromagnetic valve is arranged between the storage boxes. Two peristaltic pumps are installed in the box body in parallel side by side, a driving mechanism is arranged between the two peristaltic pumps, the driving mechanism can drive the two peristaltic pumps to rotate in the same direction at the same time, and the liquid inlet end and the liquid outlet end of one peristaltic pump are both connected with connecting pipes. According to the heating device, the heating pipe and the heat conducting rod are used for directly making contact with flowing suspension erythrocytes for heat exchange, the temperature of the suspension erythrocytes can be increased at the fastest speed, meanwhile, the device further fully utilizes cooling capacity generated by heating equipment to conduct cold storage on the suspension erythrocytes which are not injected, and energy loss is reduced.

The distillation device is applied to the technical field of chemical equipment, chemical raw materials in a heating tank are heated through a heater, then a driving mechanism is started to enable a disc to drive two stirring rods to stir in a reciprocating mode, and the stirring rods stir the chemical raw materials under the action of centrifugal force; according to the chemical raw material purifying device, the connecting shaft can drive the stirring blades to rotate, so that chemical raw materials in the heating tank can be stirred and uniformly heated, the heating rate is increased, the energy consumption is reduced, steam flows into the purifying tank through the coiled pipe, and liquid is formed by the steam under the action of the condensing mechanism and flows into the liquid collecting box; part of the liquid flows towards the periphery of the conical disc through the diversion groove, and the other part of the liquid vertically flows downwards through the leakage groove, so that the liquid can uniformly drop on the filter screen, impurities in the liquid can be filtered through the filter screen, and the purity of acryloyl chloride is improved.

The utility model discloses a heating pipe assembly, relates to heating pipe technical field, including the support frame, the bottom upper surface of support frame is fixedly connected with the support seat, the top upper surface of support seat is fixedly connected with the motor, one side of motor output end is fixedly connected with the first bevel gear, and the first bevel gear is fixedly connected with the first bevel gear. The upper surface of the top of the first bevel gear is in meshed connection with a second bevel gear, the inner side of the second bevel gear is fixedly sleeved with a rotating shaft, the first bevel gear is driven to rotate through the heating assembly and the motor, and the rotating shaft is driven to rotate through meshed connection of the first bevel gear and the second bevel gear; the supporting plate can be driven to rotate, then the heating pipe can be driven to rotate for heating, the heating rate is greatly increased, the problem of time consumption and power consumption is solved, meanwhile, a pipeline of the heating pipe can be fixed through the arc-shaped groove through the protection assembly, and meanwhile disassembly for later maintenance is facilitated to a certain extent.

The utility model discloses a battery pack and electric equipment. The battery pack comprises a frame, a battery pack and a battery pack, the battery is arranged in the frame and comprises a plurality of single batteries, the single batteries are arranged in the first direction, the projection area of the battery in the second direction is larger than that of the battery in the third direction, and the first direction, the second direction and the third direction are perpendicular to one another in pairs; and the heating piece is arranged on the frame, and the heating piece is arranged on one side of the battery in the second direction and at least one side of the battery in the first direction and the third direction. According to the battery pack disclosed by the embodiment of the utility model, the heating pieces are arranged on the side surfaces of the battery along different directions, and one side surface provided with the heating piece is a surface with a larger area of the battery, so that a plurality of side surfaces of the battery can be heated, and the heating rate and the heating uniformity of the battery can be improved; therefore, the working performance of the battery pack in a low-temperature environment is improved, the heating piece is not easy to damage, and the battery heating effect is relatively stable.

The utility model relates to the technical field of firewood stoves, in particular to a thermal circulation firewood stove which comprises a stove body, a metal top plate is fixedly installed on the top of the stove body, an air plate is fixedly installed on the side face of the metal top plate, a chimney is fixedly installed on the top of the metal top plate, and hinges are fixedly installed on the surface of the stove body. A furnace door is fixedly installed on the face, away from the furnace body, of a hinge, high-strength glass is fixedly installed in a connecting block, a fire opening is formed in the face, close to the furnace door, of the furnace body, an air inlet device is fixedly installed on the rear face of the furnace body, and an airflow pipe is fixedly installed in the furnace body. The air inlet device is matched with the airflow pipe to quickly convert outside cold air into hot air to be exhausted, so that the heating rate of the whole furnace body can be greatly increased, the required heating time can be shortened, and heat required to be supplemented by a human body can be more efficiently provided.

The invention relates to the technical field of ultrahigh-strength steel materials, in particular to 1.4 GPa-grade low-yield-ratio hot-dip galvanized TRIP steel and a preparation method thereof.The 1.4 GPa-grade low-yield-ratio hot-dip galvanized TRIP steel is prepared from, by mass, 0.25%-0.28% of C, 0.8%-1.2% of Si, 2.9%-3.2% of Mn, 0.055%-0.075% of Nb, 0.035%-0.055% of Ti, 0.55%-0.75% of Cr, 1.0%-1.3% of Alt, smaller than or equal to 0.005% of P, smaller than or equal to 0.003% of S, smaller than or equal to 0.0035% of N, smaller than or equal to 0.005% of O and the balance Fe and inevitable impurities. The obtained 1.4 GPa-grade low-yield-ratio hot-dip galvanized TRIP steel can meet the comprehensive requirements of modern new energy automobiles for high strength, high plasticity and high formability of materials.

The invention discloses a device and a method for evaluating the effect of a high-pressure oil-water system flow guarantee additive, which are used for evaluating the paraffin control effect and / or hydrate inhibition effect of the additive at the same time, and the device comprises a high-pressure kettle which is transversely arranged and is used for filling an oil-water emulsion containing the additive, and the high-pressure kettle does periodic swinging motion in the test process, a cold finger unit for providing a carrier for wax deposition and a temperature sensor for measuring the temperature in real time are arranged in the high-pressure kettle; at least one end of the autoclave is detachably and hermetically connected; the control unit is used for controlling the liquid temperature and the gas pressure in the autoclave; and the data acquisition and processing unit is used for acquiring the mass of sediments on the wall surface of the cold finger, the wax content of the initial oil phase in the sediments and the oil-water emulsion, and the induction time data of the wax-containing system hydrate, and calculating the comprehensive action index of the flow guarantee additive. According to the invention, the paraffin inhibition effect and hydrate generation inhibition effect of the additive can be jointly evaluated in one set of device; meanwhile, the flowing state of an actual pipeline can be better simulated, and the additive effect characterization is more scientific and visual.

This invention discloses a reaction apparatus for preparing high-purity lithium carbonate, including a calcination apparatus base, a calcination furnace support frame fixedly installed on the top surface of the calcination apparatus base, a movable component movably installed on the top surface of the calcination apparatus base, an automatic feeding component fixedly installed on the top surface of the calcination apparatus base, and a collection component fixedly installed on the side of the calcination apparatus base. By setting up the automatic feeding component, the rotating screw can rotate inside the first fixed plate, allowing the moving column to move horizontally on the top surface of the calcination apparatus base. At this time, an electric telescopic rod extends, driving the entire calcination furnace body to rise. Furthermore, a third drive device drives the connecting shaft to rotate, allowing the connecting ring to rotate at a certain angle along with the calcination furnace body. This achieves automated material dumping, replacing manual feeding and thus improving the practicality of the apparatus.

The invention relates to the technical field of vehicles, in particular to a high-voltage charging system and method and an electric automobile, and the system comprises a charging port and a power battery; the electric drive assembly comprises an inverter and a motor, the inverter is connected into a connecting loop of the charging port and the power battery, and the motor is allowed to be connected with the charging port; the control assembly is used for controlling the electric drive assembly to be connected with the charging port in the charging process, and at least one of boosting, current rising and heating in the charging process is achieved through the electric drive assembly. Therefore, the problems that a current electric vehicle charging framework cannot be matched with a charging pile during actual charging, so that the vehicle cannot be charged, a low-voltage charging pile cannot charge a high-voltage vehicle, or when the high-voltage pile charges the low-voltage vehicle, the high-voltage pile is limited by a charging interface, and the maximum charging current cannot be achieved are solved.

The invention discloses a water-saturated wet material hydrothermal cracking reaction kettle and a hydrothermal cracking fertilizer preparation method. The water-saturated wet material hydrothermal cracking reaction kettle comprises a tank body with a jacket structure, a steam vertical spray pipe and a steam side spray pipe, the tank body comprises a tank body straight section, a tank body upper part and a tank body bottom; and at least two steam vertical spray pipes extend into the tank body from the top of the straight section of the tank body. The tail end of the steam vertical spraying pipe is provided with a plurality of branch pipe nozzles which are arranged in the rotating direction, so that steam sprayed through the branch pipe nozzles can be sprayed into the tank body in the consistent rotating direction. The steam side spraying pipe is arranged on the side wall face of the bottom of the tank body and provided with a bent nozzle, and a non-return device is arranged in the bent nozzle. The rotating direction of the bent nozzle is opposite to the rotating direction of the branch pipe nozzle. The device has the advantages of promoting uniform mixing of materials, shortening heating time, reducing energy consumption and the like, has good fertilizer efficiency, does not have an aerobic composting process, well solves the problem of long period of traditional fertilizer preparation, and saves land occupation, labor investment and other investments.

The present invention relates to a control method for a battery self-heating system, the control method comprising: obtaining the rotor position of a permanent magnet synchronous motor; selecting at least three control points from preset space voltage vector points, wherein the control points include a space voltage vector closest to the magnetic pole spacing of the motor rotor; and determining multiple phase states of an inverter corresponding to the control points from a preset space voltage vector control table. Based on the control of the space voltage vector, the current circulation inside the three-phase winding of the motor is reduced, the bus current is increased, and thus the battery heating rate is increased.