181results about How to "No localized overheating" patented technology

The invention relates to a method for preparing alpha-sulfonic fatty acid ester by sulfonating fatty acid ester, comprising the following steps: injecting the fatty acid ester and a sulfonating agent into a micro-structural reactor (5) and a reactor (6) inside diameter of which is a micro passage respectively, mixing and sulfonating the fatty acid ester and the sulfonating agent, controlling the reaction temperature between 50 and 100 DEG C, and controlling the reaction materials to stay for 1ms to 1s in the micro-structural reactor (5) and stay for 0.5 to 30 minutes in the micro-passage reactor (6); and then injecting the reaction materials into a micro-passage reactor (7), aging the reaction materials at a reaction temperature between 50 and 100 DEG C, and controlling the reaction materials to stay for 0.5 to 30 minutes in the micro-passage reactor to obtain the alpha-sulfonic fatty acid ester. In the method, the novel micro-structural reactor is adopted, the defect of difficult control due to strong reaction heat release in the prior art is overcome, the materials can be mixed evenly, the released reaction heat can be removed in time, the reaction time can be controlled accurately, and the method has the advantages of good sulfonating efficiency, simple and safe operation and good product quality.

The invention relates to a pulverized coal burner which is characterized by comprising an air box, a powder feeding pipe, an ignition device and a blast pipe; a cylindrical fixed baffle plate with a conical cross section is axially arranged in the air box, an annular gap is left between one end of the fixed baffle plate and the air box, and a plurality of swirl vanes are circumferentially arranged in the annular gap; a precombustion chamber is arranged inside the fixed baffle plate; the outlet end of the powder feeding pipe penetrates the center of the air box to enter in the precombustion chamber, the inlet end of the powder feeding pipe is arranged outside the air box and connected with a feeder device, and the powder feeding pipe is fixedly connected with the air box; a return flow cap is arranged at the tail end of the outlet end of the powder feeding pipe and a special gap is left between the return flow cap and the outlet end of the powder feeding pipe; the ignition device comprises a fuel tank, a conduct pipe and an ignition electrode, wherein the fuel tank is arranged outside the air box; one end of the conduct pipe is connected with the fuel tank and the other end of the conduct pipe penetrates the air box to enter in the precombustion chamber to form a spouting vent; the ignition electrode is arranged at one side adjacent to the spouting vent; and one end of the blast pipe is connected with the air box and the other end of the blast pipe is connected with an air blower. The invention can be widely used in various small and medium-sized industrial coal powder boilers.

The invention discloses a reverse-conducting insulated-gate bipolar transistor (RC-IGBT) with a P floating layer current bolt, and belongs to the field of semiconductor power elements. A medium buried layer is led in between an N collector region and a P collector region of a traditional RC-IGBT, and the P floating layer current bolt is led into an N-type buffering layer above the medium buried layer. According to the RC-IGBT with the P floating layer current bolt, other parameters of an element are not affected, break-over voltage of a snapback is obviously lowered, a reverse recovery soft factor is improved, current is distributed uniformly, local over-heating phenomenon is avoided, and the reliability of the RC-IGBT is improved.

The invention discloses a low-NOx pulverized coal burner, which comprises an inner secondary air box, a hierarchical air box and a disturbed air box. The inner secondary air box, the hierarchical air box and the disturbed air box are separated by a first clapboard and a second clapboard sequentially; the centers of the first clapboard and the second clapboard are provided with circular holes; each pipe wall of each of the three air boxes is correspondingly provided with an air inlet which inclines towards the circumferential direction; a primary air pipe axially passes through the inner secondary air box; an inner secondary air pipe with a swirl vane is coaxially sleeved outside the primary air pipe; the inner secondary air pipe is hermetically connected with the first clapboard; the inner secondary air pipe expands conicity and extends outwards to form a conical cylinder at the circular hole of the first clapboard; the conical cylinder is arranged in the hierarchical air box; the disturbed air box is coaxially provided with a precombustion chamber with two open ends; an annular channel is formed between the wall of the disturbed air box and the wall of the precombustion chamber; an annular end face is arranged at an outlet of the annular channel; a disturbed air nozzle is fixed at an opening of the annular end face; the inlet end of the precombustion chamber is hermetically connected with the second clapboard; an annular hierarchical air channel is formed at the root of the inlet of the precombustion chamber; and the conical cylinder is hermetically fixed with the inner wall of the hierarchical air channel.

The invention relates to a lignite drying and carbonization quality-improving device, in particular to a lignite drying and carbonization quality-improving tower with a reciprocating and turning-back rolling bed. In the quality-improving tower, a drying and carbonization reaction chamber is surrounded by a furnace lining; the top of the reaction chamber is provided with a coal conduit, and the inside of the reaction chamber is divided into multiple layers of drying chambers and multiple layers of carbonization chambers from top to bottom; each drying chamber and each carbonization chamber areprovided with an air inlet and an air outlet for introducing and discharging drier or carbonization agent; and each inclined reciprocating grate is installed in each drying chamber and each carbonization chamber, the inclination directions of the reciprocating grates form staggered arrangement from top to bottom, each reciprocating grate is provided with an eccentric drive device, an interlay barrier below the tail part of each reciprocating grate is provided with an interlayer coal seal, a coke quenching tank is connected to the lower part of the interlay coal seal of the carbonization chamber at the bottom layer, and a coal discharging screw conveyer is arranged at the bottom part of the coke quenching tank. The invention solves the problems of raised dust and gas explosion, poor coal layer air permeability, low gas-solid heat transfer efficiency, raw coal burst, nonuniform coal layer temperature and poor regulation and control maneuverability for different sections existing in the traditional lignite drying and carbonization device.

The invention discloses an efficient and uniform heat conduction polymer-based heat conduction material and a preparation method thereof. The efficient and uniform heat conduction polymer-based heat conduction material is composed of a polymer matrix material and a heat-conducting filler, the heat-conducting filler is of a multi-orientation network structure; according to the multi-orientation network structure, in the vertical direction, the heat-conducting filler is vertically oriented along a longitudinal axis, andin the horizontal direction, the heat-conducting filler is longitudinally oriented, namely oriented from the surrounding to the center. The preparation method comprises the following steps: putting a precursor slurry prepared from the heat-conducting filler and an adhesive into a specific multi-orientation freeze casting mold, carrying out freeze drying to obtain a filler skeleton with a multi-orientation structure, finally putting the filler skeleton into a polymer melt or a precursor, and carrying out vacuum impregnation, thereby obtaining the product. The efficient and uniform heat conduction polymer-based heat conduction materialprovided by the invention has a multi-orientation network structure, and can realize high heat conductivity coefficients in-plane and out-plane directions at the same time under low filling content.

The invention discloses a method for preparing a mesoporous carbon material for an electrochemical capacitor by using rice hulls as raw materials, and belongs to the technical field of carbon materials and microwave chemistry. The method comprises the following steps of: activating the hulls serving as a carbon source by using zinc chloride serving as an activating agent through microwave auxiliary heating to obtain the mesoporous carbon material in one step, wherein the specific surface area of the obtained mesoporous carbon material is between 1,409 and 1,738m<2> / g, the total pore volume is between 0.71 and 2.14cm<3> / g, the average pore size is between 1.99 and 6.08nm, the ratio of the volume of a non-micro pore to the total pore volume is between 66.2 and 99.5 percent, and the mesoporous carbon yield is between 30.4 and 37.0 percent. The method for preparing the mesoporous carbon material is simple, efficient and energy-saving; and the prepared mesoporous carbon material has a higher ratio of the volume of the non-micro pore to the total pore volume, and has extremely high quick charging and discharging performance when used as an electrode material of the electrochemical capacitor.

The invention relates to the field of environmental engineering, in particular to sludge incineration technology. The sludge incinerator with no auxiliary fuel overcomes the disadvantage that sludge incineration in the prior art requires the auxiliary fuel such as coal. The sludge incinerator with no auxiliary fuel mainly comprises a boiling section, a suspension chamber, a spray pipe, a gas-guide pipe, a support arch, a slag outlet, a cooling spray nozzle, a combustor, an air chamber and a high-temperature air pre-heater, a slag cabin, a sand hoisting machine, a sand feeder, a middle cabin and a feeding machine. The sludge incinerator with no auxiliary fuel has the following advantages that: the incinerator adopting the technology can realize stable incineration of the sludge under the condition of not adding the coal so as to achieve innocent treatment of the sludge; the sludge incinerator using the technology can store a large amount of heat inside, and a bed has a uniform reaction temperature, so that partial overheat phenomenon is prevented and the temperature in the bed is easy to be controlled; the sludge incinerator is also safe for treating sludge containing a lot of volatile substances (such as oil-containing sludge); a fluidized bed has a simple structure, a low failure rate and a low construction cost, and is provided with a mechanical transmission component; the sludge incinerator can lower the coefficient of excess air and can reduce power consumption; the sludge incinerator has wide fuel adaptability so as to realize controlling harmful gases, such as SO2, NOx and the like easily and to obtain higher combustion efficiency; and ash produced by sludge incineration has a plurality of applications.

A motor used in evaporative cooling undersea device features that whole stator is located in enclosed stator cavity composed stator housing, end cover and inner sleeve, stator cavity is implanted with evaporative cooling media, wherein said stator core Stator core located between stator housing and inner sleeve, inner circle of stator housing and stator core excircle interference fit, inner sleeve excircle close fitting stator core inner circle, evaporative cooling media free-flowing in stator cavity and got down to stator core interior. Stator winding and stator core etc heating part generated heat quantity is conducted evaporative cooling media, when evaporative cooling media main unit temperature rises to corresponding pressure saturation temperature, media bubble and generate phase transition heat sink. Vaporization process generated vapour exchanges heat with external water of stator housing, and condenses and liquefies then backing to stator cavity.

The invention provides a formula of a flexible epoxy structural adhesive and a preparation method. The method is characterized in that dual-epoxy-group epoxy resin and polyether amine react to obtain modified polyether amine firstly. The formula of the flexible epoxy structural adhesive comprises a component A and a component B, wherein the component A comprises, in parts by weight, 10-40 parts of the epoxy resin, 40-80 parts of the modified polyether amine and 0-40 parts of a reactive diluent; the component B comprises, in parts by weight, 0-20 parts of the polyether amine, 30-60 parts of a curing agent and 1-3 parts of an accelerator; the flexible epoxy structural adhesive is prepared after the component A and the component B are mixed in the weight ratio of 100:(20-60). The method has the advantages that the flexible epoxy structural adhesive is convenient to construct, long in working life, slow in heat release and capable of being cured at the room temperature; an obtained epoxy material is good in flexibility, high in adhesive strength and widely applicable to fields of electrons, machinery, ships, automobiles, buildings and the like.

The present invention discloses one kind of constant temperature ultrasonic couplant heating device and its measuring method. The ultrasonic couplant heating device is one double barrel structure, which has an inner barrel of heat conducting material, an outer barrel of heat insulating material, couplant set inside the inner barrel, an electric heating element around the inner barrel, temperature inducing and regulating unit in the middle part of the inner barrel. It heats by means of the heat conduction of the inner barrel and the couplant homogeneously without local overheat. The present invention is superior in that different constant temperatures may be set with functional switch, different duty ratios may be regulated to reach the aim of constant temperature heating, and the electric heating element may be set in the inner wall of the inner barrel.

The present invention provides a vanadium redox flow battery control system based on PLC. The control system comprises a vanadium redox flow battery process system and a control cabinet. The control cabinet comprises an alternating current power supply configuration unit, a direct current power supply configuration unit, an ion concentration measurement unit, a man-machine interface unit, a control unit, a signal transmission module group and a power frequency conversion unit. According to the present invention, a power supply circuit of the control system, a PLC module group, a I / O module group, the signal transmission module group and the power frequency conversion unit are grouped and independently designed so as to realize the hot redundancy of the whole system, and greatly improve the stability and the reliability of the system. The system has a plurality of operating modes and an external four-circuit alternating current power supply, such that the charging and the discharging of the vanadium redox flow battery can be performed at any time and any place, the operation is convenient and the application is flexible; the system further has functions of self-diagnostic and self-recovery, such that the misjudgment and the missed judgment of the failure are effectively avoided, the reliability and the availability of the system are improved so as to indeed realize unattended operation; in addition, with the man-machine interface, the related parameters can be monitored and adjusted so as to meet the requirements of various operating conditions.

The invention discloses a dispersing device for micron / nano-particle suspension. The device comprises an ultrasonic trough, a liquid inlet pipe, an outlet pipe and several distribution pipes. The ultrasonic trough is loaded with a water body and is provided with transducers in electric connection with an ultrasonic generator. The distribution pipes are disposed inside the ultrasonic trough, and the liquid inlet ends of the distribution pipes are all communicated with the inlet pipe, while the outlet ends are all communicated with the outlet pipe. Making use of ultrasonic cavitation effect, the device of the invention disperses the suspension flowing in the circulating pipes (including the liquid inlet pipe, the outlet pipe and the distribution pipes). As suspension within the distribution pipes is in a continuous renewal state, so the suspension for production can be maintained at a stable disperse state for a long time. Due to the small cross-section, large number of the distribution pipes and the large total superficial area of the distribution pipes, a small dispersing device can disperse a large volume of suspension used for production as long as to maintain certain flow velocity. Able to be installed in an independent equipment room, the device of the invention has reduced energy consumption, cost and noise, and simultaneously plays a role in heat transfer for the suspension used for production.

The invention discloses a preparation method and application of flaky nano copper oxide. The preparation method of the flaky nano copper oxide mainly comprises the following steps: accurately weighingcopper salt and oxalic acid or oxalate, uniformly mixing the copper salt and the oxalic acid or the oxalate, then grinding, adding a proper amount of distilled water in the grinding process to enablethe mixture to be in a fluid state, heating, cleaning and drying after grinding to obtain a precursor copper oxalate, and calcining the precursor copper oxalate to obtain the flaky nano copper oxide.A preparation technology is simple, no organic solvent except ethanol is used in a preparation process, the preparation method is environment-friendly and safe, and prepared flaky nano copper oxide particles are uniform in size and small in particle size, and have good photocatalytic degradation performance on a methylene blue solution.

The invention discloses a probiotics preparation for conditioning infant intestinal tracts. The preparation is prepared by the following steps: taking walnut oil or plant blend oil taking walnut oil as a main component as a carrier, adds probiotics and other blend components into the carrier, performing blending at low temperature, and carries out negative-pressure deoxygenation to enable the probiotics to be embedded in the carrier so as to obtain drops. The method is simple, the process is easy to control, and the drops are stable in performance, do not solidify at low temperature, and are uniform in components. The viable bacteria in the probiotic drops are always in a dormant state, and the drops are stable after long-time preservation, light in taste, and natural and safe. After the drops are taken, the drops can withstand the acid and alkali environment in a human body, the survival rate of probiotics is high, the probiotics are rapidly planted and propagated in the intestinal tract of the human body, and the balance of microecology is adjusted, so that various intestinal tract problems are safely, effectively and efficiently solved. The method is suitable for preparing the probiotic preparation, and the preparation is further used for conditioning symptoms such as constipation and diarrhea in intestinal tracts of infants under the age of 3 years.

The invention discloses a method of preparing ethylene propylene diene monomer (EPDM) graft polymer through solution grafting copolymerization and an application thereof in the preparation of engineering plastics. The method optimizes and improves the preparation method on the basis of the solution grafting copolymerization preparation of EPDM-g-SAN, introduces polar monomer MMA, synthesizes EPDM-g-MAN or EPDM-g-MAS which has less content of AN unit of the graft chain, on the condition of low AN dosage; in addition, the highest monomer conversion rate of the method can reach 70-95% by adjusting the monomer proportioning so as to increase the grafting rate and grafting efficiency of the grafting copolymerization system and significantly improve the compatibility between EPDM graft polymer and SAN resin and the toughening efficiency of EPDM graft polymer to SAN resin. By mixing the EPDM graft polymer prepared in the invention and SAN resin, impact resistance engineering plastics with excellent weather resistance, aging resistance and yellowing resistance and high glossiness can be prepared.

The invention provides tartary buckwheat beverage and a preparation method thereof. The method comprises the following steps: (1) picking and selection of raw materials: picking and selecting disease-free hulled tartary buckwheat seed grains with full grain sizes, washing dirt and bacteria on surfaces of the tartary buckwheat seed grains; (2) microwave drying: soaking the tartary buckwheat in water, draining moisture and carrying out microwave drying to ensure that the moisture contents of the tartary buckwheat seed grains are smaller than 15 percent; (3) ultra-fine pulverization: carrying out ultra-fine pulverization on the dried seed grains and sieving the dried seed grains to obtain tartary buckwheat powder for subsequent use; (4) normal-temperature extraction: dissolving beta-cyclodextrin into water to be made into a solution, evenly mixing the tartary buckwheat powder with the solution, and carrying out ultrasonic extraction at normal temperature to obtain extraction liquid; (5) spray drying: making the prepared extraction liquid into dry powder; (6) blending and packaging. According to the tartary buckwheat beverage and the preparation method thereof disclosed by the invention, a modern process is reasonably used, the aim that the tartary buckwheat beverage can be drunk while the beverage is made by using low-temperature water is fulfilled while the flavor of the tartary buckwheat can be preserved, the tartary buckwheat beverage is convenient to carry, and the loss of nutrient substances of the tartary buckwheat in a storage process is reduced; amino acid is effectively concentrated while flavonoid substances are effectively extracted, and the addition of essence is not needed.

The invention relates to a phase-change energy-storage water heater. The water heater comprises a heat exchanger shell, wherein a heat insulation material layer is arranged in the heat exchanger shell, a liner is arranged inside the heat insulation material layer and comprises a liner shell, the liner is filled with a phase-change material, the phase-change material accounts for 80-98% of the volume of the liner, a heat exchange coil is embedded in the phase-change material, electric heating mechanisms are evenly arranged in the phase-change material, a temperature sensor is arranged in the phase-change material, the phase-change material temperature sensor and the electric heating mechanisms are electrically connected to a controller, and the controller is installed on the heat exchanger shell. The phase-change energy-storage water heater is compact in structure, capable of achieving even heating, high in heat transfer performance and high in water outlet efficiency.

The invention relates to a low-inductance power capacitor which comprises a cover plate assembly, a shell and a capacitor core set fixed into the shell. The capacitor core set is formed by overlapping a plurality of capacitance cores in a layering mode. A positive electrode leading copper strip and a negative electrode leading copper strip are mutually overlapped and arranged on the two sides of the non-metal-spraying face of the capacitor core set. Insulating layers are arranged between overlapped parts of the connecting parts of the positive electrode leading copper strip and the negative electrode leading copper strip and a terminal. The metal spraying faces of the two ends of each capacitor core are electrically connected to auxiliary leading copper strips respectively in a welding mode, wherein the auxiliary leading copper strips are transversely arranged. The two ends of each auxiliary leading copper strip of each end of the capacitor core set are fixed to the positive electrode or negative electrode leading copper strip through welding. The double leading copper strips are arranged on the two sides of the capacitor core set, the path for leading currents to the copper strips is the shortest, the current density is reduced, the self-inductance of the capacitor can be reduced obviously, and the safety performance of equipment like a current transformer can be improved.

The invention provides a smoking device with a function of preheating. According to the smoking device with the function of preheating, when the smoking device is turned on, an insulation heating element is started to preheat tobacco in a tobacco containing guide tube, a preheating temperature is lower than an atomization temperature, and when a user smokes, a high-temperature heating element is started to heat the airflow at a high temperature, and the high-temperature airflow is introduced into the tobacco containing guide tube to atomize the tobacco in a preheated state, and the atomized tobacco is discharged from a suction nozzle. The smoking device with the function of preheating has the advantages that it is ensured that a heat preservation state is kept when the user does not smoke,smoke only generates when the user smokes, thereby achieving the purposes of saving tobacco materials, prolonging the suction time, and simulating a suction state of a traditional cigarette, the tobacco material is heated by the high-temperature airflow in a smoking state, the heating method heats all the tobacco materials, local overheating is not caused, and therefore no burnt smell is generated.

The invention discloses a method for producing ethanol through fermentation of a starch bearing material via a composite fungistat raw material. The method comprises the following steps: crushing the starch bearing material into powder; preparing powder slurry with a dry matter mass concentration of 30 to 33% from the crushed starch bearing material, water and a clear liquid; pretreating the powder slurry by adding acidic protease, amylase and a composite fungistat into the powder slurry, adjusting a pH value to 4.0 to 4.5 and stirring the powder slurry so as to prepare a pretreated mash, wherein the composite fungistat contains penicillin and monensin; and adding glucoamylase, yeast and nutritive salt into the pretreated mash and carrying out fermentation. A mature fermented mash prepared by using the method has high alcohol concentration and high starch liquor yield; application of the composite fungistat enables the concentrations of lactic acid and acetic acid in raw material fermentation to be reduced, mixed fungus pollution to be reduced and the alcohol concentration and the starch liquor yield of the mature fermented mash to be further improved.

The invention provides heat management control method and system for an engine, and belongs to the field of vehicles. The heat management control method comprises the following steps of judging a current working state of the engine; acquiring the air inlet temperature, the water outlet temperature and the cylinder block temperature of the engine; and according to the current working state, the airinlet temperature, the water outlet temperature and the cylinder block temperature of the engine, the flow of cooling liquid among an engine cylinder block, an engine cylinder cover, a heat radiatorand a warm wind core body of a vehicle is controlled, so that the working temperature of the engine is controlled. The invention further provides the corresponding heat management system. According tothe heat management control method and the system provided by the invention, the engine can be protected, meanwhile, the fuel economy of the engine is effectively improved, and the emission is reduced.

A B-cemented semiconductor heating and temperature and humidity self-compensation integrated gas sensor is applicable to the field of measurement of multiple gases. The invention aims to solve the problems such that the existing gas sensor has single detection parameter and is severely affected by ambient temperature and humidity, operating temperature of the sensor changes with the environment, and the sensor is low in precision, large in size and high in cost. The B-cemented semiconductor heating and temperature and humidity self-compensation integrated gas sensor is characterized by mainly comprising a silicon substrate, a silicon dioxide insulating layer, a B-cemented semiconductor heater, an aluminum oxide insulating layer, a nickel-chrome membrane sensor, connecting wires and slots. According to the B-cemented semiconductor heating and temperature and humidity self-compensation integrated gas sensor, the internal B-cemented semiconductor heater provides moderate operating temperature for the sensor, thus increasing precision; the cantilever structure helps greatly decrease waste of heat; by the application of the MEMS (micro-electromechanical systems) technology, integration of multiple sensors is achieved, the size of the sensor is reduced, and the cost thereof is reduced.

The invention relates to a novel foil winding type coil leading copper busbar. The copper busbar comprises a welding part welded on a copper foil and a leading part, wherein the width of the welding part of the copper busbar decreases from top to bottom, namely the welding part is an inverted right-angled trapezoid or a right angled triangle. Experiments show that the current distribution of the leading busbar of the leading copper busbar structure of the invention is uniform compared with the traditional winding type coil leading copper busbar structure, thus the local overheating of the welding part can not be caused. In addition, the amount of copper of the invention is about the half of that of the traditional structure while the width of the copper foil is ensured, thus the dosage of copper is low and the production cost can be greatly reduced.

The invention relates to an organic silicon hydrolysate pyrolysis method and device of solvent oil thermal drive circulation. Double spiral channels in a form of spiral-like plate heat exchanger are coaxially arranged in the middle of a pyrolysis device; the upper and lower ends of one spiral channel of the double spiral channels are not sealed, so that the spiral channel can serve as a pyrolysischannel, and the upper and lower ends of the other spiral channel are sealed to form a heat exchange medium channel; solvent oil is distributed in an annular space between the column consisting of thepyrolysis channel and the double spiral channels and the pyrolysis device; a mixture of organic silicon hydrolysate and KOH solution is fed into the pyrolysis channel; the heat exchange medium of theheat exchange channel provides heat to the pyrolysis channel; the organic silicon hydrolysate is mixed with solvent oil in the pyrolysis channel, and experiences vaporization while reacting; bubblesrise to drive the liquid in the pyrolysis channel to go up to the top of the pyrolysis channel; after gas-liquid separation, the solvent oil, the unreacted organic silicon hydrolysate and the KOH solution go down to the bottom of the pyrolysis device through the annular space, forming natural circulation. Without a stirring device, the heat and mass transfer efficiency is high, and local overheating is avoided; the production cycle of the device is prolonged, and the alkali consumption is reduced; moreover, the annulus yield as well as the quality of D4 and DMC is improved, and the operation is stable, safe and reliable.

The embodiment of the invention provides a lithium ion battery module and a heat dissipation method thereof, and the lithium ion battery module comprises a plurality of lithium ion batteries, and further comprises a preset number of heat pipes and an air-cooled radiator. The heat pipe is pressed on a tab busbar of the lithium ion battery, a heat conduction silica gel pad is arranged between the heat pipe and the tab busbar of the lithium ion battery, and a phase change material gasified by heating is arranged in the heat pipe. The air cooling radiators and the heat pipes are arranged in a one-to-one correspondence mode and used for dissipating heat of the gasified phase-change material. According to a lithium ion battery module and a heat dissipation method thereof, through pressing a heatpipe with a built-in phase change material on a tab busbar, the heat pipes are connected with the air-cooled radiator, tab heat dissipation, air-cooled heat dissipation and heat pipe technologies areintegrated, the advantages of different heat dissipation modes are fused, it is ensured that the lithium ion battery module works in a comfortable and safe temperature interval, the consistency of the temperature between batteries is ensured, and meanwhile the phenomenon that tabs are locally overheated does not occur.

The invention relates to a carbon dioxide laser welding device, which comprises a carbon dioxide laser, a controller, a lens system, and a carrier, wherein said carbon dioxide laser can generate laser; the controller controls the laser; the lens system is used to focus the laser into the welding seam; the carrier has a cooler; when welding, the work piece is arranged on the cooler, then using the welding device to smoothen the welding seam, with strong combination.

The invention discloses a preparation method of ultra-micro wall-broken freeze-dried instant fruit and vegetable powder. The preparation method comprises the following steps: (1) selecting fruits and vegetables, cleaning the fruits and vegetables, performing sterilizing, removing peels and seeds, cutting the treated fruits and vegetables into pieces, and airing the pieces for later use; (2) breaking walls of the fruits and vegetables processed in the step (1), and performing smashing and pulping so as to obtain wall-broken fruit and vegetable pulp; (3) carrying out vacuum freeze drying on the wall-broken fruit and vegetable pulp; and (4) smashing the wall-broken fruit and vegetable pulp subjected to vacuum freeze drying into powder, and packaging the powder so as to obtain the instant fruit and vegetable powder. The fruit and vegetable powder is free of additives, convenient to store and carry, convenient to eat at any time and any place, capable of keeping the original nutritional ingredients of the fruits and vegetables to the maximum extent, and capable of being more quickly absorbed by eaters.

The invention relates to a dual-component solvent-free epoxy damping adhesive for marine use and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a component A: uniformly mixing epoxy resin, modified polyether amine and an active diluent while stirring, adding a defoaming agent, a dispersant and a coupling agent, further uniformly mixing while stirring, adding a flame retardant, stirring for 10 minutes, and milling twice with a three-roller mill to obtain the A component; (2) preparing a component B: uniformly stirring an epoxy curing agent, polyether amine and an accelerator to obtain the component B; and (3) preparing a coating: uniformly mixing the component A obtained in the step (1) and the component B obtained in the step (2) at a weight ratio of 100: (10-30) to obtain the product, wherein the modified polyether amine is obtained by reacting bisepoxyl epoxy resin and polyether amine. Compared with the prior art, dual-component solvent-free epoxy damping adhesive has the advantages of long pot life, stable heat release, good flame retardancy, no VOC (Volatile Organic Compounds) and good adhesion, is convenient to construct and is cured at room temperature; the material has high loss factor at room temperature and is corrosion-resistant and vibration-proof.