88results about How to "Fast heat transfer rate" patented technology

The invention relates to superfine Kaolin calcining process and device, the prodn, method includes; preheating kaolin raw powder material, then putting it in fluidization calcining furnace from the bottom, at same time, sending fuel into the furnace, preheated primary air is sent from plenum under the furnace burns with the fuel and to form a reducibility atmosphere calcining area in the lower section, the volume content of CO+H2 in reduction area is 0-10 percent, secondary air is sent from top of the reduction area to burn residual CO+H2 completely, airflow speed is 1-6m/s in the furnace, raw powder material is in fluidization, kaolin is circularly burned for 0.3-3 hours in temp. 700-1100 deg.C, then is sent into cyclone cooling system to be cooled to obtain superfine kaolin by mixer-grinding and depolymerizing.

The present invention discloses composite phase change heat storage organic matter/expandable graphite material and its preparation process and corresponding heat storage device. Of the composite material, the organic matter absorbed into the micropores of the expandable graphite accounts for 40-90 wt%, and is saturated fatty acid or linear paraffin as the phase change heat storage material with phase change temperature of 60-75 deg.c, phase change latent heat of 70-180 J/g and heat conductivity coefficient of 1.12-4.52 W/m.K. The heat storage device is one container, which is made of high heat conductivity metal material, has filled and sealed composite phase change heat storage organic matter/expandable graphite material, and is provided with metal fins. The device is used to cool electronic element fast.

The invention discloses a preparation method of 48K polyacrylonitrile-based carbon fiber and belongs to the preparation technology of fiber in the textile science art. The method comprises steps as follows: fiber bundles are spread by a yarn spreading device, and precursor fibers are preoxidized at four temperature zones by means of a preoxidation furnace; preoxidized fibers are carbonized at six temperature zones and four temperature zones respectively by the aid of a low-temperature carbonization furnace and a high-temperature carbonization furnace respectively; finally, the 48K polyacrylonitrile-based carbon fiber is obtained through an oiling and drying technology. The precursor fibers for T300-level 48 K carbon fiber are prepared with a ternary water phase suspension polymerization and wet-process two-step technology. The technology is convenient to operate, equipment is simple, the production cost is low, the problems of non-uniform oiling and inconsistent drafting in the production process of large-tow carbon fiber, concentrated heat release at the peroxidation and carbonization stage and the like are solved, and the method is applicable to engineering production of large-tow polyacrylonitrile-based carbon fiber to obtain mechanical property parameters of the material and reduce microscopical deformation, damage and breakage of the material.

The invention is a novel rapid fluidized calcination process, which effectively improves the conversion rate of the rapid fluidized calcination reaction of materials. It uses high-temperature flue gas to form a gas-solid rapid fluidized mixed heating of the material. Using the characteristics of rapid fluidization, the material is rapidly heated and mass-transferred, and then the high-temperature material enters the moving bed calcination reactor through the high-temperature gas-solid separator; The plug flow of the material in the bed makes the calcination reaction time of the material uniform, the calcination reaction is sufficient, and the conversion rate is high; at the same time, the hot gas separated by the high-temperature gas-solid separator passes through the preheater to preheat the material and then enters rapid fluidized drying The wet material is dried by a device; the sensible heat of the high-temperature material after calcination is recovered by a rapid fluidized cooler, and the material is cooled at the same time. The calcination process of the present invention has the characteristics of low energy consumption, large production capacity and easy scale-up. The material calcination temperature can be adjusted from 500°C to 1300°C, and the calcination reaction time can be adjusted from several minutes to several hours.

The invention provides a manufacturing method for a 48K polyacrylonitrile-based carbon fiber precursor and belongs to the technical field of carbon fiber precursor manufacturing. The method comprises the steps that a polyacrylonitrile-based carbon fiber precursor is mixed with a reaction solvent through polymer powder at the temperature between -18 DEG C and 0 DEG C to prepare slurry, the slurry is vacuumized to be under the pressure between 45 KPa and 90 KPa and dissolved at the temperature between 40 DEG C and 55 DEG C for 1-2 hours, and then a spinning solution is obtained; the obtained spinning solution is squeezed out through a spinning nozzle and enters a spinning pipe in a coagulating bath, the temperature of the coagulating bath is between 30 DEG C and 60 DEG C, the spinning solution is shaped in the spinning pipe and then negatively drafted in the coagulating bath by 0.4-0.9%, and then a polyacrylonitrile nascent fiber is obtained; lastly, the polyacrylonitrile nascent fiber is washed, drawn, oiled, dried and drafted, and then the 48K polyacrylonitrile-based carbon fiber precursor is obtained. Through the method, the heat exchange rate in the later period of a reaction is high, a redox initiation system containing no metal ions is adopted, and production cost is low.

The present invention relates to the field of concentration by evaporation technology. Said equipment is mainly composed of hot-air indirectly-heating hot-blast furnace, evaporator, condenser and hot-air transferring equipment. The hot-air outlet of indirectly heat-exchanged hot-blast furnace is connected with evaporator by pipeline, the outlet of evaporator is connected with condensation heat-exchanger, and the air outlet of condenser is connected with blower fan by pipeline, so that they are formed into the connected evaporation and condensation system.

The invention discloses an immersed combustion treatment system for refuse leachate, which includes: a pretreatment part, which includes a pretreatment tank and a flocculation reaction apparatus communicated therewith; a combustion and evaporation part, which includes an immersed incinerator, a tubular condenser, and a concentrate press filter device, wherein the immersed incinerator is provided with a combustion chamber comprising a fuel gas inlet, a combustion-supporting gas inlet, and an igniter, a steam outlet is disposed on the upper end of the immersed incinerator and the bottom of the immersed incinerator is conical in shape and is provided with a concentrate discharge outlet, after treatment in the flocculation reaction apparatus, a fluid flows into the immersed incinerator, then the tubular condenser is connected to the immersed incinerator through the steam outlet and the concentrate press filter device is connected to the immersed incinerator through the concentrate discharge outlet; a deep processing part, which includes an alkaline gas washing tower, an acidic gas washing tower, and a Fenton reactor, wherein the alkaline gas washing tower is connected to the gas outletof the tubular condenser, the acidic gas washing tower is connected to the alkaline gas washing tower, and the Fenton reactor is connected to a condensate discharge outlet on the tubular condenser.

The invention provides a cooling plate and a manufacturing method of the cooling plate. The cooling plate comprises a metal plate and a frame. Closed thermal superconduction pipelines are arranged inthe metal plate and communicate with one another. Each thermal superconduction pipeline is filled with a heat transfer working medium. The metal plate further comprises a refrigerant channel, so thatthe cooling effect of the cooling plate can be improved. The metal plate and the frame are tightly connected through an insert injection molding technology. The frame is divided by the metal plate into at least one containing cavity.

The invention provides a battery module comprising a casing, battery cells, a heat equalizing plate and a heat dissipating device. The casing includes six panels in the up, down, front, rear, left andright directions respectively. The battery cells are disposed in the casing. The heat equalizing plate is installed in the casing, is sandwiched between the battery cells, and is filled with a heat transfer working medium. The heat dissipating device has heat equalization, heat exchange and heat dissipation functions. The present invention also provides a battery pack having the battery module, an electric vehicle, and a power grid system. The heat equalizing plate filled with the heat transfer working medium can quickly absorb the heat generated during the charging and discharging processesof the battery cells, and distributes the heat to transfer the heat to the heat dissipating device to quickly dissipate the heat inside the battery module. Therefore, it is possible to prevent the insufficient heat dissipation of the battery modules in the battery pack, the electric vehicle, and the power grid system from influencing the normal use or causing a safety accident.

The invention discloses a beneficiation method for extracting phosphorus, reducing calcium and recovering magnesium for calcareous or calcareous and siliceous phosphorite containing high magnesium or low magnesium. The beneficiation method includes the steps that the phosphorite is subjected to multi-stage heat treatment and is then subjected to fluidized roasting, water is added to obtained phosphorite roasting powder for stirring, and sizing is obtained after digestive treatment; the sizing is separated to obtain underflow and overflow, and phosphorus concentrates and filter liquid are obtained after the underflow is filtered; and when the phosphorite contains high magnesium, the filter liquid is merged with the overflow, then carbonization pyrolysis treatment is conducted, and magnesium is recovered. The invention further discloses a beneficiation system which comprises a fluidized roasting system, a tail gas purifying system and a digestion separation system. The fluidized roasting system comprises a fluidized roasting decomposing furnace, a feeding assembly, a suspension preheating assembly, a gas supplying assembly and a combustion assembly; and the beneficiation system further comprises a carbonization pyrolysis system when being used for the high-magnesium phosphorite. The beneficiation system can be adopted for conducting treatment such as suspension preheating, fluidized roasting decomposing, digestion separation and carbonization pyrolysis. The beneficiation method and the beneficiation system have the beneficial effects of being high in efficiency, environment-friendly, capable of saving energy, high in valuable metal recovery rate and the like.

The invention discloses an integrated ground heating floor, the upper surface of a ground heating thermal-insulation basal plate (4) is provided with a ground heating trough (1) in which a ground heating tube is paved, and a metal floor (3) is arranged on the upper surface of the ground heating thermal-insulation basal plate (4). The invention is the integrated ground heating floor which has fastheating, convenient maintenance, long service life, environmental protection without harms, simple structure and reliable performance and is used for heating in winter for household and various publicoccasions (closed).

The invention belongs to the field of batteries, and particularly relates to a composite particle for a battery, a battery diaphragm and a lithium ion battery. The composite particle for the battery comprises a phase change particle and an inorganic compound coating layer coating the surface of the phase change particle, wherein the phase change particles are paraffin, crystalline hydrated salt ormolten salt; and the inorganic compound coating layer is silicon dioxide, attapulgite, kaolinite, montmorillonite, hydrotalcite, vermiculite, sepiolite, mica, illite, diatomite, titanium dioxide, zinc oxide, aluminum oxide or nanocellulose. The composite particle for the battery provided by the invention can effectively control the internal temperature of the lithium ion battery, reduce the internal temperature fluctuation of the lithium ion battery during charging and discharging, absorb part of heat during thermal runaway, reduce the heat release amount of the battery to a certain extent, ensure the safety of the lithium ion battery, and does not affect the electrochemical performance of the battery.

The invention discloses an external particle heat absorber and a solar power generation system. A particle heat exchanger internally provided with a particle channel and a working medium channel is arranged, meanwhile, a heat absorption pipe group is arranged to be communicated with two ends of the working medium channel to form a circulating pipeline, the working medium channel is in heat transfer contact with the particle channel, and after a phase change working medium in the heat absorption pipe group absorbs heat and is evaporated into a gaseous phase change working medium, the gaseous phase change working medium enters the working medium channel to exchange heat with the cold particles in the particle channel and is condensed into a liquid phase change working medium which flows back to the heat absorption pipe group. The heated hot particles can be output to next external equipment from the output end of the particle channel. The liquid phase change working medium is arranged as the middle heat exchange medium, heat is transmitted to the particles after evaporation, and the particles are heated to the needed temperature, so that high efficiency is achieved, and the problem that an existing particle heat absorber is low in heat absorption efficiency is solved. Meanwhile, the particle technology is low in price and higher in heat absorption temperature, and the kilowatt-hour cost of a photo-thermal power station can be greatly reduced under the condition of the same heat absorption efficiency.

The invention provides a method for continuously catalytically degrading lignin bio-oil into aromatic hydrocarbons and naphthenes by using a microchannel reaction device, comprising the following steps: (1) in an alcohol solvent, using an alkali catalyst to catalyze the hydrogenation depolymerization of lignin into Phenolic bio-oil; (2) filter and remove the alkali catalyst in the phenolic bio-oil, phenolic bio-oil and hydrogen are pumped into the microstructure mixer respectively simultaneously, after mixing evenly, react in the microchannel reactor, described microchannel reactor The channel reactor is filled with a bifunctional catalyst to hydrocrack the phenolic bio-oil into aromatic hydrocarbons or cycloalkanes; (3) extracting aromatic hydrocarbons or cycloalkanes from the reaction liquid.

The invention provides a battery module. The battery module comprises a shell, a plurality of cylindrical battery cells and a heat exchanging device. The shell comprises a first panel and a second panel which are oppositely arranged; the multiple cylindrical battery cells are arranged in the shell and mounted on the second panel and extends toward the first panel; and the heat exchanging device ismounted in the shell and comprises a plurality of heat exchanging plates, and the heat exchanging plates are filled with heat transfer working media. The invention further provides a battery pack with the battery module, an electric vehicle and a power grid system. Heat generated in the cylindrical battery cell charging and discharging processes can be quickly absorbed by the heat exchanging plates filled with the heat transfer working media, and the heat is spread equally, and thus the heat in the battery module is quickly dissipated; and in addition, the battery module can be quickly subjected to heat dissipating, and thus the situation that normal using of the battery pack, the electric vehicle and the power grid system is affected or safety accidents occur due to insufficient heat dissipating of the battery module can be avoided.

The invention provides quick-freezing liquid for preserving food. The quick-freezing liquid comprises the following components in parts by weight: 30-35 parts of purified water, 8-10 parts of sodium chloride, 25-30 parts of ethyl alcohol, 15-20 parts of chitosan, 0.5-2 parts of acetic acid or 1.5-6 parts of alginic acid and 10-15 parts of active components. The quick-freezing liquid for preserving food provided by the invention has an excellent antibacterial property, is free from toxic and side effects or secondary pollution to food and is high in heat conduction rate in the freezing process of food, so that the ice crystal formed in the food histocyte is small, the cells are prevented from mechanical damage and no drying loss is generated; no nutrient substance is lost in the unfreezing process; the original color, flavor and tissue state of food are kept; after the quick-freezing liquid is regulated with a harmless additive, the freezing speed and the antibacterial property are both kept, so that the quick-freezing liquid is reusable, high in use ratio, low in cost and expected to be widely used in the field of food quick-freezing processing.

The invention relates to a lime powder calcinations device, and in particular relates to a rotary kiln for calcining dust ores such as lime stone, dolomite. The lime powder calcination device comprises a powder pre-heater, a powder rotary kiln and a powder cooler. The upper part of the powder pre-heater is sealed and fixed with a powder adding tube and a waste gas pipeline, and the lower part of the powder pre-heater is sealed and fixed with the left end of the powder rotary kiln; the right end of the powder rotary kiln is sealed and fixed with the left end of the powder cooler; and a finished product discharge device is arranged on the lower end of a finished product discharge hole on the right end of the powder cooler. The lime powder calcination device can calcine the lime stone which is less than 3mm.

The invention discloses a defrosting control method and defrosting control device of an air conditioner system and an air conditioner, and relates to the technical field of air conditioners. The defrosting control method and the defrosting control device are used for reducing the influence of the air conditioner system on the indoor environment temperature in the defrosting process, and meanwhile,the defrosting time of the air conditioner system can be shortened. The defrosting control method of the air conditioner system comprises the steps that when the air conditioner system meets the defrosting condition, the air conditioner system is controlled to carry out indoor unit defrosting operation; the exhaust temperature of a compressor is obtained; and according to the exhaust temperature,a first adjusting step is operated. The defrosting control device of the air conditioner system comprises a processor and a communication connector. The air conditioner comprises the air conditionersystem, the defrosting control device of the air conditioner system and a temperature sensor.