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 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.

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 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 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 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.

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 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 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.