51results about How to "High enthalpy" patented technology

The invention relates to the technical field of energy storage material, in particular to inorganic phase change energy storage material. The material comprises the following components by mass: 70 to 99.5 % of energy storage material, 0.25-20 % of nucleating agent, 0.1-15 % of modifying agent and 0.1-15 % of water. The bases hydrate or crystalline hydrous salt, especially the bases hydrate is adopted as energy storage material; the nucleating agent adopts carbonate; and the modifying agent is dispersant. According to the inorganic phase change energy storage material, by selecting proper nucleating agent and the ration of the nucleating agent, material phase separation can be effectively solved, especially the phase change energy storage material prepared by adding the dispersant into a system has good cycling stability, and simultaneously the potential heat value does not change after circulation for thousands of times.

Ultra fine and nanometer powders and a method of producing same are provided, preferably refractory metal and ceramic nanopowders. When certain precursors are injected into the plasma flame in a reactor chamber, the materials are heated, melted and vaporized and the chemical reaction is induced in the vapor phase. The vapor phase is quenched rapidly to solid phase to yield the ultra pure, ultra fine and nano product. With this technique, powders have been made 20 nanometers in size in a system capable of a bulk production rate of more than 10 lbs / hr. The process is particularly applicable to tungsten, molybdenum, rhenium, tungsten carbide, molybdenum carbide and other related materials.

The invention relates to the technical field of energy storage materials, particularly a high-heat-conductivity inorganic phase-change energy storage material. The high-heat-conductivity inorganic phase-change energy storage material is composed of the following components in percentage by mass: 80-99.4% of energy storage material, 0.25-10% of nucleating agent, 0.1-15% of modifier, 0.1-15% of water and 0.15-19% of heat-conducting reinforcing material. The energy storage material is crystalline hydrated salt, the nucleating agent is carbonate or borate, the modifier is a polyacrylic acid emulsion or thickening powder, and the heat-conducting reinforcing material is one or mixture of more of graphite, carbon powder, copper powder, carbon fiber and silicon carbide powder. Compared with the prior art, the energy storage material has the advantages of high stability, low tendency to supercooling, high latent heat energy, high heat conductivity and the like. By selecting the proper modifier and proportion thereof, the heat-conducting reinforcing material and nucleating agent material can be successfully dispersed uniformly in the system, thereby solving the problem of the phenomenon of phase separation of the material due to long-term cycle, further enhancing the heat-conducting property of the material and being worthy of popularization and application.

A cylinder head adapted to be mounted to a cylinder block of an internal combustion engine has a cooling jacket at least partially integrated in the cylinder head. The engine has two groups of cylinders: inside cylinders and outside cylinders. Each cylinder has at least one exhaust port, each leading to an individual duct. Individual ducts of outside cylinders converge to form an outside combined duct. In a four-cylinder, individual ducts of inside cylinders converge to form an inside combined duct with the inside combined duct remaining separated from the outside combined duct by the cooling jacket. The inside combined duct is farther away from the mounting surface of the cylinder head to the cylinder block than the outside combined duct. The cooling jacket includes: upper, middle, and lower cooling jackets and connectors between the upper and lower cooling jackets.

The plasma spraying and pyrolyzing process of preparing nanometer hollow microsphere powder of nanometer crystalline oxide includes preparing precursor solution, atomizing, plasma spraying and pyrolyzing in plasma flame to form solid molten drop, and cooling in liquid to solidify form the hollow spherical nanometer crystal structure. The process is simple and suitable for industrial production.

The present invention discloses one kind of delayed coking process to produce several kinds of liquid products. The present invention features that during routine delayed coking process, low-molecular weight hydrocarbon heat supplying agent with high heat enthalpy and no high temperature coking is provided to coking tower so as to raise the liquid reaction temperature inside the coking tower, increase the yield of coking liquid product, and lower the yield of coke.

A compact steaming device, which may be handheld, and method for the generation at one atmosphere and projection of superheated steam over objects and surfaces for the elimination and control of unwanted microorganisms and pests including, but not limited to bedbugs, fleas, ants, lice and mites. A preferred embodiment of such a compact device comprises a vessel, a base, heating coils, a superheated steam generator and an external power supply for the initial boiling of a liquid to vapor and for subsequent heating of the vapor to superheated temperatures. The device and method allow for the generation of steam or gas and subsequent superheating to be accomplished safely at one atmosphere. The preferred embodiment allows for the free flow of the gas through and out of the compact device safely and effectively relieving any resulting pressure. A multi-watt embodiment is also envisioned which may be handheld or stationary.

The invention provides a multi-cathode laminar flow plasma powder spheroidization device, which consists of an anode part, an interpole part, a cathode part, a power feeding part and an accessory, wherein the anode electrode part consists of an anode casing, an anode, a compression cover and the like. Each part is compressed and connected through screw bolts; the interpole part consists of an arcing ring, an insulation ring, an interpole, an interpole inner sleeve, an interpole outer sleeve and the like; the cathode part and the anode part are simultaneously compressed; the cathode part consists of a cathode case, a cathode sleeve, a cathode and a cathode fastening ring; each part is sequentially connected; the cathode compression ring is in contact with the cathode sleeve and is fixedly connected with the cathode case; the powder feeding part consists of a power feeding pipe and a powder feeding spray nozzle which are sequentially and fixedly connected. The excellent characteristics of good jet flow controllability, high enthalpy value, long jet flow length and the like of the laminar plasma are utilized for realizing the spheroidization on powder; the treated powder has the advantages of high spheroidization rate, high uniformity and the like.

The invention relates to the field of a phase change material, in particular to an inorganic hydrated salt phase change material and a preparation method thereof. The inorganic hydrated salt phase change material is prepared from the following components by weight percent: 65 to 75 percent of heat storage agent, 8.5 to 10 percent of xanthan gum, 4.5 to 15 percent of heat conducting material, 4.5 to 8 percent of modifier and 2 to 10 percent of nucleating agent. The inorganic hydrated salt phase change material has the advantages that the cold phenomenon can be completely eliminated, the energystorage density is high, the phase change volume is small, the inorganic hydrated salt phase change material is nontoxic, non-volatile, stable in performance, good in repeatability and convenient in use; the service life of the phase change material is effectively prolonged; and the phase change temperature of the phase change material is 10 to 30 DEG C, the heat conducting performance is good, the phase change reversibility is good, the phase changetransition is fast, and the heat storage performance is good.

The invention provides a method for preparing a phase-change membrane with aerogel. According to the method, a polymer membrane (PET (polyethylene terephthalate), PP (polypropylene) and PE (polyethylene)) of 10-500[mu] m is adopted as a substrate, a composite phase-change coating (0.1-3mm) consisting of aerogel, a phase-change material, a heat conduction material and a resin is used, and the massratios of different parts are as follows: the aerogel (5-50wt%), the phase-change material (10-90wt%), the heat conduction material (1-20wt%) and the resin (1-20wt%). The method is simple in process and applicable to on-scale production, and the phase-change membrane prepared by using the method has a high enthalpy value and a high heat conduction coefficient, and is excellent in product quality.

The invention discloses a preparing method for a comb-shaped-polymer phase change energy storage material. The preparing method includes the following steps that 1) acrylonitrile, a raw material I, acatalyst A and distilled water are stirred in the nitrogen atmosphere and fully reacted at the temperature of 50 DEG C to 70 DEG C, a reaction product is cooled, washed and dried, and then a primary product is obtained, wherein the raw material I is maleic anhydride or acrylic acid or a mixture of maleic anhydride and acrylic acid; 2) the primary product, a raw material II, a catalyst B and an organic solvent after dewatering are stirred in the nitrogen atmosphere and fully reacted at the temperature of 60 DEG C to 100 DEG C, the product obtained in the step is separated out in water, and is washed and dried, and then the comb-shaped-polymer phase change energy storage material is obtained, wherein the raw material II is n-alkanol or polyethylene glycol or polyethylene glycol monomethyl ether or n-alkyl mercaptan. The comb-shaped-polymer phase change energy storage material prepared with the method is high in heat enthalpy value and good in settability, heat stability and processibility.

The invention discloses a GN@cellulose based solid-solid phase change material and a preparation method and application thereof. The method comprises the following steps of (1) dissolving cellulose; (2) carrying out homogeneous phase grafting modification: reacting a halogenated acyl halide monomer with cellulose to obtain cellulose ester; (3) carrying out ATRP method reaction: uniformly dispersing the cellulose ester, GN and a solvent B obtained in Step (2), and then adding a ligand, a catalyst and alkyl acrylate to react to obtain a reaction mixture; and (4) carrying out purification: purifying the reaction mixture obtained in Step (3) to obtain a GN@cellulose-g-polyalkylacrylate copolymer. The copolymer is subjected to melt extrusion spinning to obtain a solid-solid phase change fiber.The copolymer is is subjected to electrostatic spinning to obtain a film. According to the method, cellulose fibers are used as a substrate, halogen functional groups are grafted through an acylationreaction, alkyl acrylate is grafted on a cellulose skeleton through ATRP, graphene is used as a reinforcing material, and later-stage processing is not needed, so that the fibers with flexibility, high thermal conductivity and high enthalpy value are prepared, and secondary processing is facilitated.

The invention belongs to the technical field of phase-change energy storage materials and particularly relates to a composite phase-change energy storage material and a preparation method thereof. The composite phase-change energy storage material comprises energy storage materials, stabilizers, modifiers, nucleating agents, a heat conduction enhancer and a carrier. The composite phase-change energy storage material prepared by the preparation method has the advantages of high stability, high heat storage performance, high latent heat energy, high heat conduction coefficient, high heat storage density and longer service life, is used between 10 DEG C and 120 DEG C and can avoid phase separation after long-term use.

The invention discloses polyacrylate phase change microcapsules and a preparation method thereof. According to the preparation method, an organic anti-ultraviolet absorbent is combined with an acrylate monomer through chemical reaction, anti-ultraviolet modified polyacrylate is taken as a wall material, a low-melting-point phase change material is taken as a core material, and the microcapsules with an anti-ultraviolet function and an intelligent temperature control function are prepared through a suspension polymerization method. The preparation method of the polyacrylate phase change microcapsules is simple and mild in reaction condition, and the prepared phase change microcapsules are uniform in particle size distribution, good in thermal stability, capable of being subjected to high-temperature heat setting treatment and good in application prospect in the fields of multifunctional summer textiles and outdoor textiles.

The invention relates to a solar water heater, in particular to a phase change heat collecting and energy storage integrated solar water heater. An inner container coaxial with a casing is disposed inthe casing, a heat exchange coil pipe is disposed in the inner container, a phase change material storage portion is also disposed in the inner container, a cavity is formed between the casing and the inner container, a portion of the cavity is filled with a heat insulation layer, and another portion of the cavity is a greenhouse. One side of the casing is provided with a window, a light-transmitting cover plate is mounted on the window, and the light-transmitting cover plate and the greenhouse are located on the same side. A hot water outlet pipe is mounted on the upper portion of one side of the casing, a cold water inlet pipe is mounted on the lower portion of the same side, one end of the heat exchange coil pipe is communicated with the hot water outlet pipe, and the other end of theheat exchange coil pipe is communicated with the cold water inlet pipe. The phase change heat collecting and energy storage integrated solar water heater is simple and compact in structure, combines solar energy with a phase change material, and uses the phase change material to store the heat collected by the solar energy, is small and exquisite and has good popularization value.

An expansion turbine stage for compressed gases has a housing and a turbine rotor. The housing has flow guide channels for feeding the compressed gas to the turbine rotor. The turbine rotor, which is over-mounted and has centripetal flow through it, is followed by an out-flow diffuser enclosed by the housing, to delay the cold expanded gas. The out-flow diffuser is arranged in a holder bore in the housing, as a separate component. For thermal insulation of the housing relative to the cold expanded gas stream, the out-flow diffuser is made of a non-metallic material having a low heat conductivity.

The invention relates to a method for improving dryness of deep well thickened oil well bottom steam through electric heating. The method comprises the steps that (1) after being separated through a steam-liquid separation device, steam generated by a ground boiler is conveyed to a well mouth of an injection well through a pipeline; (2) the tail end of a production casing pipe in a shaft of the injection well is connected with an oil layer screen pipe through a suspender, and a heat insulation oil pipe is mounted in the production sleeve pipe; (3) a continuous oil pipe is mounted in a steam injection oil pipe, a conveying cable is arranged in the continuous oil pipe, and the front end of the conveying cable is connected with a heating resistor; and (4) steam of the well mouth is injected into the shaft through the steam injection oil pipe, condensation water gathered around the well bottom is secondarily heated by adjusting the input electric power of the heating resistor, the condensation water is evaporated into saturated steam, and the dryness of steam injected into the well bottom is improved. According to the method, the principle is reliable, operation is simple and convenient, the exploitation efficiency of deep well thickened oil SAGD and steam flooding is greatly improved, and wide market prospects are achieved.

The invention discloses a production method of fabric for a gas bag, which comprises the step of weaving. In the fabric weaving process, a presser bar is additionally arranged below lamella warp between the heald frame of a weaving machine and the back beam of the weaving machine. The fabric obtained by the invention has no need of after-treatment and has good flexibility, low gas permeability and high slip resistance.

The invention relates to a high-enthalpy high-heat-flow ground simulation test device and test method. An arc heater heats an entering test medium to form high-temperature airflow, and the high-temperature airflow is expanded and accelerated by a spray pipe to generate a rectangular section subsonic airflow at an outlet of the spray pipe, a first pressure measuring device and a third pressure measuring device respectively measure the outlet pressure P1 of the spray pipe and the vacuum pressure P2 of a test chamber and feed back the pressure P1 and the pressure P2 to a data analysis terminal in real time, and the data analysis terminal gives an instruction according to P1 and P2 values and adjusts the operation parameters of a vacuum pump set and a vacuum valve until the vacuum pressure P2 of the test chamber is matched with the outlet pressure P1 of the spray pipe, a stable working state can be ensured for the subsonic airflow at the outlet of the spray pipe; the data analysis terminal sends an instruction to control a panel support to be adjusted from a negative attack angle to a positive attack angle, a heat flow measuring device and a second pressure measuring device arranged on a panel support measure the surface heat flow value q and the pressure P3 of the panel support in real time and feed back the values to the data analysis terminal, and the needed high heat flow ground simulation test environment is obtained.

The invention discloses a method for increasing the heat enthalpy value of sodium sulfate decahydrate, and belongs to a phase-change heat-storage material and a preparation method thereof. According to the method, nanoscale sodium sulfate decahydrate is wrapped with a nanoscale microcapsule, and a nanoscale phase-change heat-storage microcapsule is produced, so that the phase-change temperature and the heat enthalpy value are changed.

The invention discloses a method for preparing a biomass material with a high heat calorific value through calcination coupling self-cross-linking of a salix material. The method comprises the steps that the salix material is subjected to inorganic modification, and then soluble low molecules in the salix material are dissolved out; then, an organic coupler is used for reacting with chemical components of the salix material under a certain condition, and thus free radicals on the surfaces of amorphous regions and crystalline regions of cell walls of the salix material are associated; then oxygen isolation calcinations are carried out, part of the chemical components of the salix material are softened, embedded and carbonized at a certain temperature, and thus the calorific value of the salix material is increased. The calorific value of the biomass material obtained through the method for preparing the biomass material with the high heat calorific value through calcination coupling self-cross-linking of the salix material is increased by 88.5%, and the biomass material is low in moisture absorption rate and good in abrasiveness.

The invention relates to a shell bursting device for camellia seed shells. The shell bursting device comprises a generation module, a gas storage module, a shelling module and a condensation module. The camellia seed shells are burst by the aid of high-temperature superheated steam (above 100 DEG C), and the shortcomings of non-uniform shell bursting, loud noise in the shell bursting process, easiness in damaging pulp, high energy consumption, long shell bursting time and the like caused by traditional shell bursting methods such as a mechanical shell bursting method and a microwave shell bursting method are overcome. The high-temperature superheated steam is generated by a superheated steam generation device and then sprayed into a closed container at a high speed through a nozzle, high pressure is generated in the container, the camellia seed shells are burst, water in materials can be gasified when the high-temperature steam comprehensively contacting with the materials, and shell bursting is facilitated. By the aid of a superheated steam shell bursting method, the shell bursting device has the advantages of shell bursting uniformity, low noise, short shell bursting time, energy conservation and the like.

The invention discloses a solar inorganic energy storage material and a preparation method thereof, the solar inorganic energy storage material comprises the following raw materials by weight: 28-32 parts of anhydrous magnesium chloride, 18-21 parts of anhydrous calcium chloride, 50 parts of water, 10 parts of aluminum hydroxide, 5 parts of iron oxide, 5 parts of zinc oxide, 80 parts of phosphoric acid, 1 part of alumina, 1 part of calcium oxide, and 1 part of silica. The solar inorganic energy storage material disclosed by the invention is low in cost, high in enthalpy value and low in heat conductivity coefficient, belongs to an efficient thermal-insulation energy-saving material, has the enthalpy value of 3,500 J / g and the phase transition temperature of 25 + / -3 DEG C, is waterproof and fireproof, and has the heat conductivity coefficient of 0.0119 W / (m.k). The solar inorganic energy storage material has wide application prospects in the fields of solar heat utilization, waste heat recovery, electric power peak load shifting, heat management systems, building energy conservation and the like, has the characteristics of high latent heat storage density, no supercooling or superheating and the like, and shows wide application prospects in the field of clean energy application.

The invention discloses a 76-degree phase change energy storage material and a preparation method thereof. The 76-degree phase change energy storage material is prepared from a main body material andaids, wherein the main body material is an eutectic composition formed by mixing high-purity urea with ammonium bromide according to the weight ratio of (9 to 1) to (6 to 4); and the aids contain 1 to4 percent of porous material, 1 to 2 percent of modified cellulose suspending agent, 0.2 to 0.8 percent of special hydrophilic nano-oxide and 5 to 10 percent of expanded graphite. The main body material and the aids form a solid-non-Newtonian Fluid transformed phase change material; the problems of low energy storage density, great environmental influence and attenuated thermal property of a conventional energy storage material are solved; an enthalpy is improved to 295KJ / kg; after the 76-degree phase change energy storage material is configured in a heat exchanger, heat storage density for heating can reach 700MJ / m<3>; meanwhile, thermal stability is improved to 5 percent of thermal decay / 10,000 times; and the 76-degree phase change energy storage material can be used as an energy storage material in a centralized and distributed heating system on a large scale.