16results about How to "Increase heat release" patented technology

The invention discloses a phase change energy storage waterborne polyurethane nanofiber membrane and a preparation method thereof. Lignin-based phase change microcapsules are prepared by combining ultraviolet crosslinking with lignin shell packaging, and then the nanofiber membrane containing the phase change microcapsules is prepared through an electrostatic spinning technology. And finally, constructing the waterborne polyurethane phase change fiber membrane with asymmetric wettability through a low-temperature plasma technology. According to the invention, lignin is self-assembled to form nanoparticles, and ultraviolet light induces free radical polymerization to form a polymer film, so that the packaging capability of the phase change material is improved. The phase change microcapsule prepared by the method is high in packaging efficiency and excellent in phase change performance, the preparation process is green and environment-friendly, the technological operation is simple, the temperature of the prepared phase change energy storage waterborne polyurethane nanofiber membrane conforms to the comfortable temperature range of a human body, and the phase change energy storage waterborne polyurethane nanofiber membrane has excellent temperature regulation, waterproof and moisture permeable performance and is suitable for being used in the field of water treatment. Good application prospects are realized in the field of functional textiles with functions of intelligent temperature regulation, water resistance and air permeability and the like.

The invention discloses a method for preparing carbon fibers from acrylonitrile and ice crystal grade acrylic acid, and belongs to the technical field of carbon fiber preparation. The method comprises the following main production steps: 1) preparing ice crystal grade acrylic acid from industrial grade acrylic acid, 2) mixing two monomers according to a certain ratio, and carrying out water phase precipitation polymerization under a certain oxidation-reduction initiation system, 3) centrifuging, washing and drying powder, 4) crushing the powder, and 5) dissolving the powder to prepare a spinning solution. According to the invention, acrylonitrile and ice crystal grade acrylic acid are taken as monomers, and high-performance powder for dry spinning of carbon fiber precursors is prepared at a low temperature of 45-50 DEG C through a water phase precipitation polymerization method. The prepared precursor monofilament is high in strength, high in modulus and high in crystallinity, heat release in the carbonization process is smooth and stable and concentrated in the range of 230-260 DEG C, and heat dissipation in the carbonization process is facilitated.

The invention relates to the technical field of electronic equipment refrigeration, and discloses an electric card element. The electrocaloric element comprises a first electrode layer, a second electrode layer and a piezoelectric functional film layer. The piezoelectric functional film layer is arranged between the first electrode layer and the second electrode layer, the piezoelectric functional film layer comprises a piezoelectric refrigeration area and a piezoelectric displacement area which are formed by partitioning the piezoelectric film layer, and the piezoelectric displacement area is used for driving the piezoelectric refrigeration area to generate displacement; a distinguishing gap used for distinguishing the two function unit areas is arranged between the piezoelectric refrigeration unit and the piezoelectric displacement unit which are adjacent to each other. Wherein the piezoelectric displacement area comprises an embedded piezoelectric displacement unit. A thermal switch is integrated in the electric card element, and the heat exchange efficiency is improved. Furthermore, an embedded piezoelectric displacement unit is arranged, so that the size of a piezoelectric refrigeration area in the piezoelectric functional film layer is increased, and the heat release or heat absorption capacity of the electrocaloric element is further increased. The invention further discloses a preparation method of the electrocaloric element.

The application discloses a cutting synergist for liquefied petroleum gas and a preparation method thereof, and belongs to the technical field of cutting synergists. The cutting synergist is prepared by mixing the following components with the mass content: an alkyl ferrocene mixture 5-8%, n-octane 6-10%, ethylene glycol monoethyl ether 8-10%, isooctyl nitrate 10-15%, acetone 15-25%, and 200# solvent oil 25-45%. The application is a high-efficiency energy-saving synergist for cutting liquefied petroleum gas, and the performance of the liquefied petroleum gas after the addition of the synergist can reach and exceed the cutting performance level of the original petroleum gas and acetylene gas, and the liquefied petroleum gas can completely replace acetylene gas, natural gas and pure propane to be used as industrial gas for metal cutting. The product performance exceeds that of natural gas, industrial propane and the same kind of synergists on the market, and has a wide application prospect, and is a great breakthrough of industrial gas in the industrial field of China.

The invention discloses a hydrated salt phase separation suppression system, comprising: a heat storage device and a liquid medium layer composed of a liquid medium; the heat storage device comprises: a circulation pipe, an inner tank filled with a hydrated salt phase change material, and a jet nozzle arranged at the bottom of the inner tank; the melting point and density of the liquid medium are lower than those of the hydrated salt phase change material, and the boiling point is higher than the highest heat storage temperature of the heat storage device; the liquid medium layer covers the surface of the hydrated salt phase change material; the circulation pipe is connected to the jet nozzle; when the hydrated salt phase change material is in the heat release stage, and the temperature is between the freezing point temperature and the heat release starting temperature, the circulation pipe intermittently transports the liquid medium to the jet nozzle and then sprays it out, so as to form a forced turbulent dispersion effect in the hydrated salt phase change material. The invention effectively realizes the cyclic phase separation suppression of the hydrated salt phase change material without adding any additives.

The invention discloses a sectional material auxiliary positioning type bending forming machine, and belongs to the technical field of bending machines. The sectional material auxiliary positioning type bending forming machine comprises a base plate, a supporting frame is fixedly installed at the upper end of the base plate, a carrying plate is arranged below the supporting frame and used for containing a sectional material to be bent, and a first air cylinder is fixedly installed on the supporting frame; and a connecting plate is fixedly mounted at the telescopic end of the first air cylinder, a positioning pressing head is fixedly mounted at the lower end of the connecting plate, a jacking component is arranged on the side edge of the carrying plate, a heater is fixedly mounted in the positioning pressing head, and an auxiliary positioning structure is mounted on the side edge of the positioning pressing head. According to the sectional material auxiliary positioning type bending forming machine, when a sectional material is bent and formed, auxiliary positioning can be conveniently conducted on the side edge of the sectional material, lateral deflection of the sectional material during bending is prevented, meanwhile, when the sectional material is heated, heat can be conveniently stored, heat dissipation is reduced, and electric energy loss needed during heating is reduced.

The invention discloses nano-aluminum modified hexogen energetic microspheres and a preparation method thereof, relates to the technical field of energetic materials, and in particular relates to a material which is formed by tightly combining tannic acid modified hexogen and 3-mercaptopropyltrimethoxysilane modified nano-aluminum powder in a chemical coating manner and has a core-shell structure. Through chemical coating and close combination of hexogen and nano aluminum powder, the energetic microspheres can rapidly initiate chemical reaction during ignition, so that the combustion process is accelerated, the combustion efficiency is improved, the chemical coating is also beneficial to improving the thermal stability of the energetic microspheres, and the safety risk in the storage and transportation processes is reduced.

The invention discloses a composite phase change heat storage material as well as a preparation method and application thereof, and belongs to the technical field of phase change heat storage materials. The invention discloses a composite phase change heat storage material which is prepared from the following components in percentage by mass: 50%-75% of a phase change core material, 20%-45% of a porous carrier matrix and 3%-10% of a heat conduction reinforcing agent, the porous carrier substrate is diatomite; the heat conduction reinforcing agent is expanded graphite. The technical problem that an existing phase change heat storage material is difficult to have high heat storage density, excellent shaping effect, high heat conductivity and good mechanical property at the same time is remarkably solved.

The invention provides a muck-based magnesium phosphate salt geopolymer as well as a firing-free preparation method and application thereof, and relates to the technical field of building materials. Geopolymer slurry containing 10-50 parts of shield muck powder, 20-40 parts of dihydric phosphate, 40-90 parts of dead burned magnesium oxide, 10-30 parts of water, 0-15 parts of borax and 0-5 parts of an acid additive is poured and then vibrated and formed, curing is conducted after hardening is conducted at the temperature of 20-25 DEG C, and the muck-based magnesium phosphate salt geopolymer is obtained. The magnesium phosphate cement has huge early heat release and phosphate radical protonation effect, the problems of low shield muck utilization rate, low treatment efficiency, low strength and the like are solved, the energy-saving and low-carbon requirements are met, and the prepared geopolymer has high early strength; meanwhile, the shield muck is used for replacing a certain mass of magnesium phosphate cement, so that the problems that the magnesium phosphate cement is high in production cost, high in setting speed, limited in construction operation time, large and concentrated in heat release and the like are solved.

The invention discloses a preparation method for electrochemical in-situ synthesis of a Cu / DNBT film, and belongs to the technical field of initiating explosive device micro charge. The method comprises the following steps: synthesizing DABT, synthesizing DNBT, modifying the surface of a Cu substrate, and synthesizing the Cu / DNBT film in situ through electrochemistry. The preparation method is scientific and reasonable in design, simple and convenient to operate, short in preparation time and good in safety, the surface of the Cu substrate is modified to be covered with a layer of nanoscale Cu (OH) 2 film, the copper foil plated with the blue nanoscale Cu (OH) 2 film serves as an electrochemical anode, metal ions are provided to be subjected to a coordination reaction with DNBT, and finally the Cu / DNBT film is synthesized on the copper foil.

The application relates to the technical field of heat storage, and discloses a heat exchange device for a heat storage system, which comprises a heat storage box filled with first solid heat storage materials; metal plates embedded in the first solid heat storage materials, the metal plates being distributed at equal intervals in a vertical direction, the metal plates being filled with second solid heat storage materials; and heat exchange pipes penetrating through two ends of the heat storage box in the vertical direction, the first solid heat storage materials defining heat exchange flow channels in the vertical direction, the metal plates being integrally formed with metal rib plates in regions overlapping with the heat exchange flow channels, the metal rib plates being provided with through holes in the centers, and the heat exchange pipes being arranged in the through holes; wherein, in a heat release direction, the pipe diameter of the heat exchange pipes and the hole diameter of the through holes gradually decrease. The heat exchange device can effectively reduce the gap proportion in the heat storage device, improve the heat storage density, improve the heat transfer effect of the heat exchange device, and ensure uniform heat release.

The invention discloses a deep and shallow dual-mode circulating heat storage tank system based on a heat pump and an operation regulation and control method of the deep and shallow dual-mode circulating heat storage tank system. The operation regulation and control method comprises the steps that a heat storage water tank, a pressurizing water pump set, a heat pump set, multiple sets of pipeline valves, a first-level network water supply pipeline and a first-level network water return pipeline communicate with one another; a heat storage water supply pipeline, a heat storage pressurization water return pipeline, a conventional shallow heat release pressurization water supply pipeline, a conventional shallow heat release water return pipeline, a deep circulation heat release water supply pipeline and a deep circulation heat release water return pipeline are formed; the scheduling control unit performs comprehensive analysis on a heat supply and demand relationship according to heat supplied by a source side thermal power plant and heat required by a heat supply network and combined with heat storage capacity of a heat storage water tank, and then performs scheduling control according to working conditions on each formed pipeline; and generating a deep and shallow dual-mode scheduling control strategy under a conventional shallow heat storage and release operation condition and a deep circulation heat storage and release operation condition.

The present invention relates to a large-scale garbage disposal machine, comprising a feeding device, an assembled pyrolysis gasification furnace, an exhaust gas treatment device and a chimney connected in sequence, wherein the exhaust gas treatment device comprises a two-fuel quenching heat exchange box, a dust removal, desulfurization and denitrification box and a wet electrostatic precipitator and demisting box connected in sequence, wherein the two-fuel box inlet of the two-fuel quenching heat exchange box is connected to the pyrolysis gas outlet of the assembled pyrolysis gasification furnace, and the outlet of the wet electrostatic precipitator and demisting box is connected to the chimney. The beneficial effects of the present invention are as follows: the large-scale garbage disposal machine adopts an assembled pyrolysis gasification furnace and a plurality of box-type equipment to form an exhaust gas treatment device, wherein the two-fuel quenching heat exchange box, the dust removal, desulfurization and denitrification box and the wet electrostatic precipitator and demisting box can be stacked and placed, and the structure is convenient for disassembly, assembly and transportation; it occupies less space; no factory building is required, investment is saved, and the process is simplified; it is de-factorized and the "NIMBY effect" is eliminated.

The lamp body comprises a first shell, a radiator, a light source assembly, a first heat dissipation piece and a second heat dissipation piece, and a first cavity with an opening in one end is formed in the first shell. The radiator is connected with the first shell and covers the opening of the first cavity to form a first sealing cavity. The light source assembly is arranged in the first sealing cavity and connected with the radiator. The first heat dissipation row is arranged in the first cavity and connected with the first shell. The second heat dissipation row is arranged outside the first cavity and connected with the first shell, and the first heat dissipation row and the second heat dissipation row are oppositely arranged. The light source assembly is arranged in the first sealing cavity, so that the lamp body can meet the sealing and waterproof requirements of the light source assembly. The arrangement of the radiator, the first heat dissipation row and the second heat dissipation row can accelerate the heat release process of the lamp body and reduce the temperature of the first sealing cavity, so that the situation that the performance of an electronic element arranged in the first sealing cavity is affected due to the fact that the temperature of the first sealing cavity is too high can be avoided.

The invention discloses a heat accumulating type continuous heat exchange device and a heat exchange method, and belongs to the technical field of metallurgical high-temperature heat exchange. The technical problems that an existing heat exchange device adopts intermittent heat exchange, medium fluctuation is large, and the failure rate is high due to the fact that valves need to be frequently switched for reversing are solved. The heat accumulating type continuous heat exchange device comprises a movable heat accumulator and n medium pipelines arranged side by side, wherein heat accumulator moving channels are formed in the medium pipelines; the movable heat accumulator can move back and forth along the heat accumulator moving channel; the medium pipeline comprises a heating medium pipeline and heated medium pipelines, the heating medium pipeline and the heated medium pipelines are arranged at intervals, and the heated medium pipelines are located on the two sides of the heating medium pipeline; the flowing direction of a heating medium in the heating medium pipeline is opposite to that of a heated medium in the heated medium pipeline; and the width of the heat exchange area of the movable heat accumulator is equal to the width of n-1 pipelines. The medium flow direction does not need to be frequently switched, and continuous heat exchange is achieved with little fluctuation.

The utility model relates to the technical field of semi-coke production, and particularly discloses a novel high-temperature semi-coke waste heat recovery steam production device which comprises a recovery cavity and a heat exchange cavity. The other ends of the multiple heat pipes penetrate through the partition plate, extend into the heat exchange cavity and are detachably connected with the top end in the heat exchange cavity, multiple heat conduction plates are installed on the outer walls of the heat pipes located in the heat exchange cavity, steam makes contact with the lower end faces of the multiple heat pipes, and the lower ends of the heat pipes are promoted to absorb heat of the steam; heat is conducted to the upper end of the heat pipe, then the heat pipe can release heat to heat low-temperature water in the heat exchange cavity, the heat release effect of the heat pipe can be further improved through the multiple heat conduction plates, and therefore the heat exchange speed of the heat pipe and the low-temperature water is increased, and the low-temperature water is utilized after being heated; secondly, heat preservation can be conducted on the heated water in the heat exchange cavity and the filtering cavity through the outer heat preservation layer and the inner heat preservation layer, and the heated water is prevented from being cooled again.