121results about How to "To achieve the effect of heat insulation" patented technology

The invention relates to a square lithium ion battery internal thermophysical parameter identification method and belongs to the field of lithium ion batteries. According to methods for directly obtaining the analytical solutions of heat transfer model equations in existing battery thermophysical parameter identification methods, the overall parameters of batteries are identified, and the internalthermophysical properties of the batteries cannot be identified, while, with the square lithium ion battery internal thermophysical parameter identification method of the invention adopted, the problems in the existing methods can be solved. According to the square lithium ion battery internal thermophysical parameter identification method of the invention, the internal specific heat at constantpressure of a battery is obtained according to battery shell and internal mass, the specific heat at constant pressure of battery shells, heating power and the relation of the temperature of the battery varying with heating time; and the internal longitudinal thermal conductivity coefficient of the battery is obtained according to a heat transfer process, specific heat capacity and boundary conditions; two thermocouples on each battery shell are adopted to obtain two temperatures, and the temperatures of two temperature points at the inner sides of an equal thickness of the lithium ion batteryshells are obtained according to the longitudinal thermal conductivity coefficient and a heat transfer model; and on the basis of the two temperature points and the boundary conditions, the transverse thermal conductivity coefficient of the internal material of the battery is obtained according to the heat transfer model. The method is used to identify the internal thermophysical parameters of the battery.

The invention discloses a water glass transparent reflecting heat-insulation coating material and a preparation method thereof, wherein the water glass transparent reflecting heat-insulation coating material comprises, by mass, 35-50% of an aqueous acrylic emulsion, 5-15% of an aqueous silica sol, 5-15% of an aqueous polyurethane, 5-10% of an aqueous nanometer antimony tin oxide heat-insulation slurry, 5-10% of an aqueous nanometer lanthanum hexaboride heat-insulation slurry, 5-10% of an aqueous nanometer vanadium dioxide heat-insulation slurry, 0.1-0.5% of an anti-foaming agent, 0.1-0.3% of a wetting dispersing agent, 0.2-0.5% of a leveling agent, 0.2-1% of a thickening agent, 0.1-0.2% of an anti-mildew antibacterial agent, 0.5-2.5% of a film forming auxiliary agent, 0.5-2% of a silane coupling agent, and 5-25% of deionized water.

Provided is a vacuum heat insulation heat fluid energy-saving running pipeline. The vacuum heat insulation heat fluid energy-saving running pipeline comprises an inner fluid pipe and a shell steel pipe, the inner fluid pipe is arranged in the shell steel pipe in a sleeved mode, the two ends of the shell steel pipe is sealed by an end sealing plate and a vacuum heat insulation layer is formed between the two pipes, and the vacuum heat insulation layer is communicated with a sealed valve. By utilizing a triple heat insulation structure, heat energy radiation loss and cold coagulation in a steam, hot water transportation process are reduced, and the problems of relatively large single (double) way heat loss, high heat loss rate and low heat utilization efficiency of an existing running pipeline are reduced.

The invention provides a method for making a microvacuum multilayer heat-insulating quilt, belonging to cryogenic engineering and cryogenic technical field. The method comprises the following steps of: preparing a mechanized production line; a plurality of reflecting layers and heat insulating layers is sewed into a quilt by seams after the plurality of reflecting layers and heat insulating layers are alternately combined on the production line according to certain requirements; and the quilt is evenly penetrated to make holes. The microvacuum multilayer heat-insulating quilt made by using the method reduces workloads for winding heat-insulating materials, shortens binding period, guarantees that the heat insulation quilt can not loose during using, and even can improve vacuumizing efficiency and maintain high vacuum degree between interlayer on the premise of a guarantee of excellent and stable heat insulation performance, thereby the method has more advantages of lot manufacturing and producing of cryogenic storage and transportation equipment, and prominent economic benefit and social benefit in cryogenic engineering.

The invention relates to a uniform temperature plate structure and a manufacturing method thereof. The uniform temperature plate structure comprises a body, wherein the body is provided with a first plate body and a second plate body; the first plate body and the second plate body are correspondingly buckled and define a hollow area and a cavity together; the cavity is provided with at least one capillary structure, a support structure and a working fluid; and the hollow area correspondingly penetrates through the first and second plate bodies and the cavity. The uniform temperature plate structure disclosed by the invention can elastically avoid other electronic elements and even achieve the heat insulation effect by arranging the hollow area on the body.

The invention relates to a centrifugal casting process for a main pipeline of a million kilowatt-grade nuclear power plant. The centrifugal casting process comprises the main steps of smelting, cylinder coating, centrifugal casting, heat treatment and the like, wherein the tapping temperature of pressure molten steel is 1,640+/-10 DEG C; after a cylinder is coated, the cylinder is roasted to the temperature of more than or equal to 280 DEG C and heat is preserved for 1 to 2 hours; the temperature of pouring steel is 1,570+/-10 DEG C; the calming time is not less than 4 minutes; the rotating speed of the cylinder is controlled to be 800 to 870 r/min; and the casting speed is more than or equal to 100 kg/s. In the centrifugal casting process, process parameters and the process are controlled strictly, so the main pipeline capable of meeting the requirements of the million kilowatt-grade nuclear power plant can be manufactured.

The invention provides a textured stone-like heat-insulating reflective composite coating for buildings and a preparation method thereof, and the textured stone-like heat-insulating reflective composite coating comprises the following components in percentage by mass: 11-20% of reflective heat-insulating emulsion, 3-20% of composite hollow glass bead powder, 0.1-0.24% of a bactericide, 0.05-0.10%of a preservative, 2-5% of a coalescing agent, 1-4% of a composite additive, 1-6% of ultrafine heat-insulating powder, 0.5-7% of a mica filler powder, 0.5-5% of nano titanium dioxide, 12-60% of whitesand, 4-20% of color sand, and 5-15% of water. The stone-like coating has the functions of heat insulation, weather resistance and stone-like texture, also has a flame-retardant effect, is low in production cost, is comprehensive in weather resistance and heat insulation, is good in texture effect, and is environment-friendly and pollution-free.

The invention discloses a preparation method and application of a spherical thermal insulating nanometer material. The preparation method comprises the following steps of: preparing a heat reflection spherical nanometer material ATO (Arsenic Trioxide)by adding a morphology control agent by means of a co-precipitation method; carrying out mixing and ball milling on film forming agents and the well dispersed heat reflection spherical nanometer material ATO to obtain a paint, wherein the film forming agents comprise polyurethane, acrylic resin and epoxy resin; and coating the paint on a glass and transparent resin material. The prepared film coating has good thermal insulation and transparent conductivity effects, light transmissivity of the transparent conductive film coating in a visible light region is more than 80%, light transmissivity of the transparent conductive film coating in an infrared light region is less than 20%; compared with blank glass, the temperature of the glass coated with the thermal insulating transparent conductive paint can be reduced by 5-10 DEG C, and the thermal insulating transparent conductive paint has excellent thermal insulation and transparent conductivity effect; and compared with the prior art, the product has the effects of stable chemical property, high transmissivity in the visible light region, low transmissivity in a near/far infrared light region, excellent thermal insulation performance and the like, and is easy to store for a long term.

The invention discloses a dual-state temperature change type cold-proof anti-freezing cable and belongs to the cable field. The dual-state temperature change type cold-proof anti-freezing cable includes a core layer, the outer end of the core layer is wrapped with an insulating layer. The outer end of the insulating layer is coated with a sheath; and the outer surface of the sheath is coated witha semi-transparent soft layer. At high temperature, a gas-controlled oil part is partially gasified to generate gas, an outer air bulge bulges outwards and is filled with air, and compared with an entity, the gas conduction speed is lower, the external temperature can be effectively isolated, the overall high temperature resistance of the cable is effectively improved and the service life is prolonged; and at low temperature, light oil returns to liquid, animal oil is cured, the gas-controlled oil part is integrally in a solid state with certain viscosity under the adjustment of the liquid light oil, so that the defect that the outer layer of the cable is hardened and embrittled at low temperature can be effectively overcome, and compared with the prior art, the brittleness resistance of the cable in winter is remarkably improved, and the service life of the cable is further prolonged.

The invention discloses a high-conductivity isothermal body temperature control irradiation device. The device comprises an irradiation capsule, a cushion block, an isothermal body and an inert gas layer. The irradiation capsule is an outer protective shell of the irradiation device and provides support for each component and a to-be-irradiated sample; the isothermal body provides temperature compensation for the to-be-measured sample by utilizing the nuclear irradiation heating characteristic of the isothermal body, so that the to-be-measured sample is in a uniform and stable temperature environment; the inert gas layer is arranged in a gap between the inner surface of the irradiation capsule shell and the outer surface of the isothermal body so as to perform heat preservation; the cushion block is arranged between the contact surfaces of the isothermal body and the irradiation capsule so as to perform heat insulation. The irradiation device disclosed by the invention provides a uniform and stable irradiation temperature environment for irradiation examination of a nuclear power material, is simple and reliable in structure and low in cost, and provides support for a reliable nuclear power material irradiation test.

The invention relates to a production process of a special highly-flame-retardant wire harness for rail transit. Each cable in a wire harness is coated with a heat conduction ice wire layer, in orderto improve the heat conduction and heat dissipation capabilities of the wire harness. Through the arrangement of a coiled cooling belt and a net-shaped cable sheath, inner-outer double-layer heat conduction and heat dissipation effects can be achieved, the wire harness can be rapidly cooled, the temperature near the wire harness can be lower than the temperature of an electrical system of the whole rail transit, the situation in which a cable can be easily ignited due to excessive temperature is avoided, and the safety is improved. The coiled cooling belt located on the outer side after beingturned over can achieve a heat insulation effect and avoid the influence on normal use of the wire harness due to the too high or too low external environment temperature. Because of the use of a dual-state heat conductor in the coiled cooling belt, heat conduction and heat dissipation effects can be achieved, and the effects of reminding a worker of leakage of the dual-state heat conductor and guiding the worker to a leakage point can be achieved to a certain extent.

The invention relates to the technical field of glass, in particular to floor building glass. The floor building glass comprises a window frame body, wherein a mounting groove is formed in the right side of the interior of the window frame body, a warm edge spacing strip is welded to the interior of the mounting groove, a hot melt adhesive layer is bonded to the interior of the mounting groove, aglass inner plate and a glass outer plate are bonded to the interior of the hot melt adhesive layer, sound insulation cotton and a transparent silica gel panel are bonded to the interior of a cavity,and a sound insulation layer is arranged in the transparent silica gel panel. According to the floor building glass, the mounting groove is formed in the window frame body to achieve the effect of mounting the glass, the warm edge spacing strip is arranged to achieve the effects of heat preservation and noise reduction, the hot melt adhesive layer is arranged to achieve the effect of bonding and fixing the glass inner plate and the glass outer plate, when the glass is impacted by collision, the transparent silica gel panel can achieve the effect of shock absorption, the problem of glass burstis prevented to a certain extent, and the sound insulation cotton and the sound insulation layer can achieve the sound insulation effect.

The invention provides heat insulation paper for decorating and a preparation method thereof. The heat insulation paper is prepared from the following raw materials: inorganic fibers, wood pulp, waterborne acrylic emulsion, polypropylene oxide glycol, hexamine, octadecyl trimethyl ammonium chloride, polyvinyl alcohol, nano-silica aerogel and ethyl silicate hydrolysate. The heat insulation paper has the advantages of being resistant to high temperature, outstanding in heat insulation performance and heat insulated; in addition, the hydrophobicity is high, and the heat conductivity is low; and the temperature preserving and heat insulating effects are outstanding.

The invention provides a waterproof thermal insulation coating. The coating is prepared from, by weight, 80-100 parts of alkyd resin, 40-60 parts of acrylic emulsion, 20-30 parts of modified expandedperlite, 6-12 parts of dispersing agent, 4-8 parts of wetting agent, 8-16 parts of curing agent, 4-8 parts of thickener and 10-30 parts of water; modified expanded perlite is mainly prepared from expanded perlite, indium trichloride and tin tetrachloride, and polyacrylic emulsion is mainly prepared from methyl hydroxymethyl methacrylate, styrene, ammonium acrylate, silica sol, ethyl hexyl acrylate, alha-ethylhexyl acrylate, hydroxyethyl acrylate, water, potassium persulfate, a pH adjuster and sodium dodecylbenzene sulfonate. The thermal insulation coating has better thermal insulation effect and excellent water resistance.