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98results about How to "Increase the maximum temperature" patented technology

Power generating device by waste heat of automobiles

The invention discloses a power generating device by waste heat of automobiles. A plurality of novel alloy bars are attached to the inner side of a circular iron hose of a power generator, coils are mounted between adjacent novel alloy bars and arranged in coil slots formed by adjacent novel alloy bars in a surrounded manner, heat and cold exchange holes are arranged on the novel alloy bars, an elongated rare earth magnet is attached on an outer face side of each alloy bar, magnetic polarities of the rare earth magnets on the face sides of the adjacent novel alloy bars are opposite, the other magnetic polarity surfaces of the rare earth magnets are wrapped on steel pipes, and the power generator is provided with an outer casing. The novel alloy bars are non-magnetic substances at a certain low temperature while are magnetic substances at a certain high temperature. When the rare earth magnets are close to the novel magnetic alloy bars, magnetism of the novel magnetic alloy bars is doubled. The novel alloy bars have magnetism after being heated by tail gas or a heat medium liquid in a cylinder liner of an automobile and have no magnetism after being cooled by cold air with water mist or refrigerant liquid, and high alternating current can be produced in the coils by repeating the above steps and can be used as power force for electric automobiles.
Owner:张英华

High-temperature waste heat recovery system for diesel engine

The invention discloses a high-temperature waste heat recovery system for a diesel engine. The technical scheme is that an air compressor, a regenerator, a thermo-electric generator, an EGR heat exchanger and an expander are sequentially connected to form a Brayton air regenerative cycle system, and an airflow regulating valve is connected with the air inlet of the air compressor; high-temperature exhaust gas discharged by an engine is output in two ways: one part sequentially passes through a turbine and the thermo-electric generator and then is discharged to the atmosphere, the other part is mixed with supercharged air from a supercharger through the EGR heat exchanger, and the mixture enters the air inlet of the engine; and Brayton circulating air serves as the cold end of the thermo-electric generator, exhaust passing through the turbine serves as the hot end, and the thermo-electric generator pre-heats the Brayton circulating air while outputting power. The high-temperature waste heat recovery system can efficiently utilizes high-temperature waste heat of an internal combustion engine, thereby improving the fuel economy of the internal combustion engine and lowering the heat load of the system. Meanwhile, the system has a relatively simple composition, ensures safe and environment-friendly running, is convenient and flexible in layout, and can be easily implemented in the internal combustion engine.
Owner:TIANJIN UNIV

Apparatus for preventing power lithium ion battery pack from thermal runaway

The invention discloses an apparatus for preventing a power lithium ion battery pack from thermal runaway. The apparatus is used for a battery pack with a battery management system, wherein the battery pack comprises a plurality of battery units, the positive electrode ends and the negative electrode ends of each battery unit are respectively connected to a branch circuit in parallel, the branch circuit comprises an external resistor and a circuit switch control component, each circuit switch control component is connected to the battery management system through signal, the battery managementsystem is used for monitoring and determining whether each battery unit has an internal short circuit, and if the battery management system monitors and determines that the internal short circuit occurs in a certain battery unit, the circuit switch control element is conducted, such that the battery unit with the internal short circuit is short-circuited externally. According to the present invention, with the apparatus, on the basis of the traditional battery pack with the battery management system (BMS), the circuit switch control component and the small external resistance forming component are additionally arranged in each series connection branch circuit, such that the temperature monitoring and the voltage monitoring are performed by the battery management system, and the apparatushas advantages of easy operation and low cost.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Control method for highest temperature interval of high-arch-dam low-heat cement concrete

ActiveCN112462818AIncreased safety against crackingEnsure arch integrityTemperature control using electric meansTemperature controlCrack resistance
The invention provides a control method for a highest temperature interval of high-arch-dam low-heat cement concrete. The characteristics of the low-heat cement concrete are combined, and the advantages of the low-heat cement concrete can be exerted to improve the crack resistance safety of dam concrete, the influence on the joint grouting quality of the transverse joint due to too small opening degree of the transverse joint in the construction period of the arch dam caused by too low maximum temperature control of concrete can be prevented, and the arch sealing integrity of the arch dam is ensured; too low maximum temperature control of concrete can be prevented, and particularly, when the environment temperature in autumn and winter is low, the highest temperature of the low-heat cementconcrete is easier to be too low. After the lower limit value of the highest temperature of the concrete is set, the highest temperature can be properly increased by adjusting a concrete pre-coolingmeasure, a water cooling measure and the like, so that the temperature control cooling engineering quantity and investment are obviously saved; and after the highest temperature interval control standard is set, the temperature control operation on the concrete in the actual construction process is more flexible, and field construction control is facilitated.
Owner:POWERCHINA HUADONG ENG COPORATION LTD

High-spatial-resolution and high-temporal-resolution infrared thermal imaging temperature measurement method

The invention discloses a high-spatial-resolution and high-temporal-resolution infrared thermal imaging temperature measurement method and relates to the field of semiconductor device temperature testing. The method comprises the steps of 1, measuring the temperatures of two areas distinctly different in temperature of a unit under test by means of a transient infrared device by adjusting the focusing area of the transient infrared device, so that two curves indicating how temperature changes with time are obtained; 2, analyzing the two temperature change curves and judging the time point when the unit under test enters a quasi-stable state; 3, measuring the temperature of a target area by means of the transient infrared device, so that a temperature change curve of the target area is obtained; 4, measuring the temperature of the target area by means of an infrared microscopic thermographer, so that a temperature distribution image of the target area is obtained; 5, obtaining the accurate temperature value of any position of the target area at any moment; 6, obtaining a temperature distribution image of the whole area at any moment, or a temperature change curve of the whole time zone at any position. By the adoption of the method, high-spatial-resolution and high-temporal-resolution temperature measurement can be achieved.
Owner:THE 13TH RES INST OF CHINA ELECTRONICS TECH GRP CORP

Gasoline engine for complete internal cooling hybrid electric automobile

The invention relates to a gasoline engine for a complete internal cooling hybrid electric automobile. The gasoline engine comprises an engine body, a cooling water system and an inlet gas combustion system, wherein the cooling water system comprises a water spraying system composed of a pure water tank, a water supply pump and a nozzle, and a cooling water recycling system composed of an exhausting valve, a multifunctional room, a recycling water pump, a water filter, a high-level water inlet box and a water treatment system; the multifunctional room is internally provided with expansion, silencing and condensation devices; the water treatment system is internally provided with an AO (Anoxic Oxic) membrane; the water supply amount of the water supply pump is adjusted through a rack; the nozzle can be used for distinguished cooling on a cylinder body and a cylinder cover. The temperature of the gasoline engine provided by the invention is lower than cylinder wall temperature of a common gasoline engine so that the final expansion and exhausting temperature is reduced; meanwhile, when the inlet gas combustion system provided by the invention is used, the highest temperature and pressure are higher than those of the common gasoline engine in a combustion process, so that the gasoline engine researched by the invention can obtain heat efficiency which is higher than that of the common gasoline engine.
Owner:王嘉立

Method of preparing polyacrylate super absorbent resin at high temperature

The invention discloses a method of preparing polyacrylate super absorbent resin at a high temperature. The method comprises the following steps: adding a sodium hydroxide solution (50%) into an acrylic acid solution with a certain concentration to carry out neutralization reactions so as to obtain a neutral solution; when the temperature of the neutral solution is 50-90 DEG C, adding a crosslinking agent and other auxiliary agents into the neutral solution according to a certain ratio, carrying out reactions to obtain gel, wherein the final temperature of gelling reactions can reach 100-160 DEG C; grinding and extruding gel, drying, grinding, sieving, and finally carrying out secondary surface crosslinking to prepare the polyacrylate super absorbent resin. The heat of neutralization reactions is utilized, a crosslinking agent is added at a high temperature to carry out reactions, the energy consumption for cooling is reduced, and continuous production is guaranteed. Because the primary temperature of polymerization is high, the highest temperature of gelling reactions is high, a large amount of water is removed through evaporation, drying is promoted; the reaction time is short, the production efficiency is largely improved, the steps of nitrogen introducing and oxygen removing are not needed, and the production cost is reduced therefore.
Owner:JIANGSU SAILBOAT PETROCHEMICAL CO LTD

Heat storage phase change heat exchanger and method for promoting crystallization of sugar alcohol phase change material and reducing degree of supercooling

ActiveCN112815756AIncrease the maximum temperatureAchieving crystallization exothermHeat storage plantsInsulation layerFluid phase
The invention relates to a heat storage phase change heat exchanger and a method for promoting crystallization of a sugar alcohol phase change material and reducing the degree of supercooling. A shell of the heat exchanger is composed of a metal shell body, a heat preservation layer and an insulation plastic cavity from outside to inside. A heat exchanger body in the insulating plastic cavity is filled with a sugar alcohol phase change heat storage material mixed with stearate, and an annular coil pipe which serves as a working medium runner and is insulated from the shell is further arranged in the heat exchanger body in the insulating plastic cavity. The areas, located in the liquid-phase sugar alcohol phase change heat storage material, of two ends of the heat exchanger body are respectively provided with an electrode, and the upper electrode and the lower electrode are respectively connected with an external impact-resistant alternating power supply. When the heat exchanger is electrified to release heat, disturbance of various sugar alcohol phase change materials can be promoted, the crystallization process of the sugar alcohol phase change materials is further promoted, and the degree of supercooling in the crystallization process can be obviously reduced.
Owner:ZHEJIANG UNIV

Boiler circulating heating system and method for boiler water

The invention relates to a boiler circulating heating system for boiler water. The boiler circulating heating system comprises a boiler and a steam pocket arranged above the boiler, wherein the bottom of the boiler is connected with one end of a first electrically-operated door through a pipeline; the other end of the first electrically-operated door is respectively connected with a periodic blowdown expansion tank through a first manually-operated door and is connected with a deoxidation tower through a second manually-operated door; the deoxidation tower is connected with a deoxidation water tank through a pipeline; the deoxidation water tank is connected to the steam pocket through a pipeline after sequentially passing through a third manually-operated door, a water supply pump as well as a first non-return door and a second electrically-operated door which are opposite to the water supply pump in direction; and the second electrically-operated door is automatically closed when the water supply pump jumps to stop. The invention also relates to a method for heating boiler water by using the boiler circulating heating system for boiler water. The boiler circulating heating system for boiler water can be used for increasing the temperature of the boiler water to a preset value before ignition and has the characteristics of low energy consumption, high speed and the like.
Owner:STATE GRID CHANGYUAN HANCHUAN FIRST POWER CO LTD
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