328results about How to "Warm up fast" patented technology

The invention brings forward a battery low-temperature preheating and charging method which comprises the following steps: an equivalent circuit model of a battery is obtained; multiple electrochemical impedance spectroscopy EIS data corresponding to multiple temperatures and multiple charged states are obtained, and corresponding parameters of the equivalent circuit model are obtained according to the multiple electrochemical impedance spectroscopy EIS data; current temperature and current charged state of the battery are obtained, and the working condition state of the battery, including low-temperature starting condition and low-temperature charging condition, is judged according to the current temperature and the current charged state; when the working condition state is the low-temperature starting condition, first frequency and a first amplitude of alternating current are selected according to parameter values of the equivalent circuit model corresponding to the current temperature and the current charged state; alternating current is applied on the battery according to the first frequency and the first amplitude for preheating until the temperature of the battery reaches a first preset temperature so as to make the battery to be normally used. By the method of the embodiment, lithium precipitation is avoided, and heat production rate inside the battery is raised.

Disclosed is a rear-placed combustor with an annular porous medium head for an ultramicro turbojet engine. An annular reflux structure is adopted for the combustor which is formed by a combustor box, a flame tube wall, a combustor outlet and the annular porous medium head. Air flow passes through a centrifugal compressor of the engine for compression, enters an annular cavity channel of the combustor, and then is mixed with gas fuel which is jetted in horizontally; premixed gas is pre-heated through the flame tube wall and then flows back to enter a flame tube through the annular porous medium head, and stable ignition is achieved; the whole mixed gas combustion process is finished in the flame tube, and high-temperature gas is discharged from the outlet of the rear-placed combustor; and then the high-temperature gas is discharged into air through a tail pipe after turbine blades of an impact engine does work. The combustor box, the flame tube wall and the combustor outlet are connected through bolts with high temperature glue sprayed on annular edges to guarantee the sealing. According to the combustor, features and advantages of stable flame of the annular porous medium head can be adapted to and played to the greatest extent, proneness to flameout of ultramicro combustors can be improved, so that the combustor can work for the ultramicro turbojet engine reliably and stably.

The engine (1) has a cylinder block coolant jacket operated in a turbine housing (13) in a turbocharger (12) during a subphase of a heating phase of the engine according to nitrogen oxide flow strategy. A cooling circuit (4) is separated from the cylinder block coolant jacket and connected with a common pump (7) that is joined to the cylinder block coolant jacket. A bypass (11) is provided downstream to the pump and upstream to a cylinder block coolant inlet (9). The housing is made of light material i.e. aluminum, where the housing or the turbocharger is provided with the cooling circuit. An independent claim is also included for a method for controlling coolant during a heating phase of an internal combustion engine.

The invention relates to a preparation method of a self-preheating laser engineered net shaped ZrO2-Al2O3 composite ceramic thin-walled part. The preparation method comprises the following steps: ZrO2 powder and Al2O3 powder are respectively fed in a powder feeder after being dried, and argon is taken as powder feeding gas, and is conveyed in powder nozzles; Nd:YAG continuous laser is transmittedin the powder nozzle through optical fibers to form coaxial laser beams to be irradiated to powder focal points, and the distance between a shower nozzle and a base material is adjusted so as to enable laser to heat melted powder and the base material synchronously; the moving tracks of the powder nozzles are controlled, the moving track of the powder nozzle on the first layer is repeated for 8 to 20 times, the rapid cyclic scanning is carried out by the laser beams, a metal substrate is heated quickly, and after the metal substrate is preheated, ceramic powder and the metal substrate are stably bonded together; and fed powder is formed, and the laser engineered net shaping manufacturing of the ceramic structural part is achieved through laminated accumulation. The invention achieves the crack-free rapid manufacturing from powder to the structural part of the ceramic structural part, needs no auxiliary heating device and binding element addition as well as green ceramic body preparation, and improves the production efficiency.

A heating device includes: a magnetic field generating unit generating a magnetic field; a heat-generating member generating heat due to electromagnetic induction of the magnetic field, and having a heat-generating layer of a thickness that is thinner than a skin depth; a temperature-sensitive member including a temperature-sensitive magnetic member whose magnetic permeability starts to decrease continuously from a magnetic permeability change start temperature that is in a temperature region that is greater than or equal to a set temperature and less than or equal to a heat-resistant temperature; and an approaching/separating mechanism maintaining the temperature-sensitive member in a state of being separated from the heat-generating member until before a temperature of the temperature-sensitive member reaches the set temperature, and causing the temperature-sensitive member to contact the heat-generating member at and after the time when the temperature-sensitive member reaches the set temperature.

This invention discloses an industrial fuel gas used for metal cutting and welding. Additive and dimethyl enther are added to cylinder to make-up the fuel, dimethyl enther is 40~99.9% and other rest additive. The additive is consisted by one or any several kind of following fuels as arbitrary proportion, petroleum liquefied gas, propane, butane, propylene, pentane, clean oil, methanol, ethanol. This invention has good burning property, security, environmental protection capability and extra high burning flame temperature. Comparing to acetylene, it is not easy to bomb, and its storage, transportation, using and management is more convenient and safe. There is no pollution to environment and operator. Its preheating and cutting velocity is fast, welding and welding line quality is good, oxygen consumption is low, so it improves work efficiency and reduces cost.

The invention discloses an engine cold-start preheating device. A heat storing heat exchanger (3) is in a parallel connection with an exhaust pipe (2) of an engine (1), the heat storing heat exchanger (3) is used for storing exhaust air waste heat of the engine (1), the heat storing heat exchanger (3) is in a columnar structure, a plurality of heat storing units are distributed in the heat storing heat exchanger (3), each heat storing unit is a concentric casing pipe (7) which comprises an inner pipe and an outer pipe, a phase change thermal storage material (8) is encapsulated in annular space between the inner pipe and the outer pipe, two ends of the inner pipe are welded on two flow guide plates (9) respectively, a hollow cavity for enabling cooling water of the engine (1) to flow through is formed by the two flow guide plates (9) and inner walls of the heat storing heat exchanger (3), and the inner walls of the heat storing heat exchanger (3) are located between the two flow guide plates (9). The engine cold-start preheating device has the advantages of being low in costs, small in size, efficient, energy-saving and convenient to popularize and use in a wide range.

The invention provides a control method and device of a separation and reunion type water pump for an engine. The control method comprises the steps that S1, the current engine water temperature is collected; S2, the magnitude of the current engine water temperature and a cold start threshold value is judged, if the current engine water temperature exceeds the cold start threshold value, the separation and reunion type water pump is controlled to enter a normal working state, and if the current engine water temperature does not exceed the cold start threshold value, the separation and reunion type water pump is controlled to enter a cold start mode; S3, in the cold start mode, a temperature partition where the current engine water temperature is located is judged, and according to the temperature partition, the opening time and closing time of current working circulation of the separation and reunion type water pump are obtained and output to the separation and reunion type water pump; and S4, when the situation that the engine water temperature exceeds the cold start threshold value is detected, the separation and reunion type water pump is controlled to exit the cold start mode and enter the normal working state. Precise control over the separation and reunion type water pump can be realized, and the effect of fast machine warming is guaranteed to the maximum limit.

The invention discloses a horizontal dual-drum energy-efficient boiler without a fireproofing-material furnace-building process. The horizontal dual-drum energy-efficient boiler comprises an upper drum, a lower drum and a hearth, wherein the upper drum is connected the lower drum through a plurality of rows of convection pipe bundles, all an outer partition wall, a middle partition wall and an inner partition wall are in water pipe type structures, and fins and/or cast iron hangers are assembled; the hearth is arranged on outside the inner partition wall, and is composed of an upper header, a lower header and a fire grate as well as an outer water pipe wall; a combustion chamber is arranged at the front part of the hearth, a high-temperature smoke chamber is arranged on the rear part of the hearth, a plurality of high-temperature water-passing pipes are vertically arranged in the high-temperature smoke chamber, and the high-temperature smoke chamber has a three-return stroke combustion structure; and a smoke outlet is sequentially connected with a hot air chamber and a chimney of a smoke residual heat recycling device, and a smoke purifying pond can be additionally arranged. Hot air of the hot air chamber is supplied to the hearth, high-temperature water of the smoke residual heat recycling device is replenished for the boiler, thus heat energy utilization rate can be greatly increased, steam yield is high and heat efficiency is high. The energy-efficient boiler has the advantages of light integral weight, convenience and time conservation in hoisting, transporting and installing, and cost conservation.

The invention discloses an underwear cup molding die. Cavities are formed in upper and lower dies, and superheated airflow is introduced into the cavities for heating, so that the die is rapidly preheated in a short time. The cavities are separated into multiple areas for respectively performing heating treatment at different temperatures, the condition that the temperature on the surface of the die is consistent with the temperature needed at each part of a mold pressing material is ensured, the heating effect of the cup material is improved, the problem caused by extremely high or low temperature is solved, the quality of the mold cup is improved, and the mold cup molding process is effectively perfected and improved. The molding die is suitable for molding modern three-dimensional cups of which the lower sides are thick and the upper sides are thin, so that the mold pressing temperature distribution on the die surface is reasonable, only the hot airflow is introduced into the first area of the lower die during mold pressing, so that the heating can be performed, the power consumption is reduced, the time is saved, the working efficiency is improved, the mold cup quality is improved, and the mold cup molding process is effectively perfected and improved.

The invention discloses a floor brush with a rolling brush heating function. The floor brush comprises a floor brush body and a rolling brush. One end of the floor brush body is provided with a connecting part, and the other end is provided with a fixing part. The two ends of the floor brush body are improved, the fixing part at one end can fix the rolling brush, and the connecting part at the other end can be conveniently and flexibly connected and installed with the rolling brush. Two ends of the rolling brush are connected with the connecting part and the fixing part of the floor brush body. A heating device is arranged in the rolling brush and adopts an electric heating mode.

The invention relates to a cooling device of scooptram mechanism, comprising a vehicle frame, an outer cover, a cooling fan and a heat dissipating device. A mounting deck is fixed on the vehicle frame; the heat dissipating device is fixed on the mounting deck; each component of the heat dissipating device is arranged in three rows in fore-and-after direction; the cooling fan is positioned at the back row and installed at the tail part of the vehicle frame; a water radiator is positioned at the middle row; a charge air cooler and an oil radiator are positioned at the front row; thermal baffles are positioned in front of the charge air cooler and the oil heat radiator; the outer cover is installed on the mounting deck so that the outer cover and the thermal baffles as well as the space surrounded by both form a cooling chamber positioned at the back side of an engine and that the cooling fan, the water radiator, the charge air cooler and the oil radiator are positioned inside the cooling chamber. The cooling device of the invention is separated from an engine body via the cooling chamber, and the air draught is basically in the state of stable flowing when a suction cooling fan works; therefore, the structure reduces the air friction, reduces the working pressure of the fan and has better wind cooling effect.

The invention discloses an automobile air-conditioning system. The automobile air-conditioning system further comprises an ejector (12) and an intermediate heat exchanger (6). In a heating mode, a working medium flowing from an outlet of a second heat exchange (102) is divided into a first channel and a second channel; the first channel of the working medium flows into the ejector (12) through a drive inlet after flowing out of a high-temperature side (62), and then is divided into a first branch and a second branch after being ejected from an outlet of the ejector (12), the first branch of the working medium flows back into a compressor (1) through a low-temperature side (61), and the second branch of the working medium flows into the ejector (12) through a bypass guide hole via a third heat exchanger (3). The automobile air-conditioning system has the advantages that efficiency of the compressor and the air-conditioning system can be improved effectively, requirements for heat in high and cold environment can be guaranteed, and comfortableness of passengers and stable and efficient performance of heating components are guaranteed.

The invention relates to the technical field of evaporation and discloses a crucible. The crucible comprises a crucible body, the crucible body is provided with a cavity, the first end of the crucible body is sealed, and an opening communicated with the cavity is formed in the second end of the crucible body. The crucible further comprises at least one heat conduction part, each heat conduction part is located in the cavity, and the heat conduction parts divide the cavity into multiple containing areas. According to the crucible, the cavity of the crucible body is divided into the containing areas through the heat conduction parts, so that when organic materials are placed in the crucible, the organic materials are located in the containing areas, when the crucible is heated, heat will be transferred to the heat conduction parts through the inner wall of the crucible, the crucible heats the organic materials in the containing areas respectively, the organic materials can be quickly preheated, and heat is uniformly distributed. Thus, heating uniformity of the organic materials in the crucible can be improved, and the display effect of a display device is enhanced.

The invention discloses a solid oxide fuel cell system and a starting method thereof. The starting method of the solid oxide fuel cell system comprises the following steps: heating air; heating fuel;and making heated air and fuel enter a fuel cell stack to complete preheating, wherein the step of heating fuel comprises the following specific step: heating fuel with a first heater, and the first heater is connected in series with a fuel reformer; and/or the step of heating air comprises the following specific step: heating air with a second heater, and the second heater is connected in serieswith an air heater. Through adoption of the starting method of the solid oxide fuel cell system disclosed by the invention, the heating speed of the fuel and/or air can be increased, thereby increasing the preheating speed of the fuel cell stack, and shortening the starting time of the solid oxide fuel cell system.

The invention discloses an automatic transfer and loading and unloading device for high-temperature forming molds, a high-efficiency processing system and processing method for 3D cover glass, an automatic transfer and loading and unloading device for high-temperature forming molds, including a forming mold conveying mechanism, which is used to reduce the temperature to not lower than 100 The forming mold of ℃ is moved from the discharge end of the processing equipment to the unloading and feeding station and from the unloading and feeding station to the feeding end of the processing equipment; the unloading and feeding station includes an upper mold moving device for The upper mold of the forming mold is lifted to control the opening and closing of the mold; the sheet taking device is used to take out the molded part from the lower mold of the forming mold, and take the piece from the place to be processed and place it on the lower mold. This solution does not require manual operation and can improve overall processing efficiency and product yield. The output molding die has no temperature limit and can be output at a higher temperature, which can reduce cooling time and reduce the time spent on preheating , which is conducive to improving the overall processing rate and reducing energy consumption.

The invention discloses a battery pack cooling device of an electric car. The battery pack cooling device comprises a compressor, a gas-liquid separator, a car inside condenser, a car outside heat exchanger, a car inside heat exchanger, an air channel and a battery pack cooling device body. A first connecting pipeline and a second connecting pipeline are arranged between the battery pack cooling device body and the car inside condenser, a third connecting pipeline and a fourth connecting pipeline are arranged between the battery pack cooling device body and the car inside heat exchanger, so that when outdoor temperature is too high, cooling fluid in the third connecting pipeline carries out heat exchange with refrigerating fluid in the car inside heat exchanger and then flows to the battery pack cooling device body from the fourth connecting pipeline, therefore, a battery pack is cooled, the temperature of the battery pack is prevented from being too high, and efficient and safe operating of batteries is guaranteed. When the outdoor temperature is too low, cooling fluid in the first connecting pipeline carries out heat exchange with refrigerating fluid in the car inside condenser and then flows to the battery pack cooling device body from the second connecting pipeline, and therefore the battery pack is fast preheated. The battery pack cooling device is good in heat dispersion performance and long in runtime.

The invention discloses novel industrial cutting gas with dimethyl ether as a main component. The novel industrial cutting gas comprises (but not limited to) the following components in percentage by mass: 60-99.99% of the dimethyl ether, 0.01-40% of additives and the like, wherein the additive is prepared from tert-butylferrocene, diethyl ether, aromatic hydrocarbon, solvent oil No.6, tert-butyl alcohol and potassium permanganate according to a certain proportion. Auxiliary gas can also be added into the cutting gas and is one or some of acetylene, propane, propylene, butane and butylene. The novel industrial cutting gas disclosed by the invention presents strong advantages in the aspects of economy, safety, environment friendliness and cutting performance.

The invention provides a 3D printing head with follow-up pressurization and heating. The strength of a printing piece can be simply and effectively improved. A printing head body, an axial driving mechanism and a heating unit of the 3D printing head with follow-up pressurization and heating are separately relatively fixed to a Z-axis linear module. A pressurization plate is positioned under the printing head body and is fixedly connected with the output end of the axial driving mechanism, and can vertically reciprocate under the action of the axial driving mechanism. A central coaxial throughhole is formed in the position, corresponding to the printing head body, of the pressurization plate to avoid interference with the printing head body. The heating unit surrounds the bottom of the printing head body and keeps a distance from the pressurization plate. According to the 3D printing head with follow-up pressurization and heating, a vibration (pressurization) and heating mechanism which follows the printing head to move overall is designed at the position of the printing head, the synchronized heating mechanism can preheat a printed layer, and the mutual combination of adjacent interlayer materials is promoted; and on the basis, the pressurizing plate flattens and compacts the printed layer, so that the interlayer combination strength is further improved.

The invention discloses a snow and ice removal vehicle which comprises a vehicle body, a snow throwing machine, an ice-breaking device, an ice-melting device and a heat transferring pipeline. The snowthrowing machine is connected to the front portion of the vehicle body, and the ice-breaking device is connected to the front portion of a vehicle body chassis. The ice-melting device is connected tothe middle of the vehicle body chassis. One end of the heat transferring pipeline communicates with a heat output opening of the ice-melting device, and the other end of the heat transferring pipeline is connected with a horn opening structure. The snow and ice removal vehicle provided by the invention is easy to operate and control, ice and snow layers can be efficiently and thoroughly removed,damage to tracks is not prone to being caused, energy conservation and environmental friendliness are achieved, and secondary environmental pollution is avoided.