8results about How to "Increase heat storage" 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.

A heat-accumulating composition comprising a substance A and a polymer 2, the heat-accumulating composition having a melting peak temperature between 10 and 60°C and a melting enthalpy between 10 and 60°C of 30 J / g or more, the heat-accumulating composition not having an island-in-sea structure, or the heat-accumulating composition having an island-in-sea structure, the volume average equivalent circle particle diameter of the islands (dispersed phase) being 1.5 μm or less or the area ratio of the islands (dispersed phase) being 15% or less.

This invention relates to a curable composition, a heat storage material, and an article. The curable composition comprises a compound (1A) represented by formula (1-2) having a Mw of 7000 or more; a compound (1B) represented by formula (1) having a Mw of less than 2000; a compound represented by formula (2); and a polymerization initiator. In formula (1-2), R 11 and R 12 Each can be used independently to represent a hydrogen atom or a methyl group, R 14 R represents ethylene, m represents 2 or more such that the molecular weight of the compound represented by formula (1-2) is an integer greater than or equal to 7000. In formula (1), R 11 and R 12 Each can be used independently to represent a hydrogen atom or a methyl group, R 13 This represents a divalent group with a polyoxyalkylene chain. In formula (2), R 21 R represents a hydrogen atom or a methyl group. 22 Let R be the basis represented by the following equation (2-1). In equation (2-1), R 23 R represents oxyethylidene 24 This indicates a hydrogen atom or an alkyl group, n represents an integer greater than 2, and * represents a bond.

This utility model discloses a seamless garment for smog protection and warmth, comprising a main body, a detachable hood attached to the main body, and sleeves on both sides of the main body. The hood's nose and mouth area features a breathable composite structure, comprising an outer high-density compression weave and an inner breathable weave. The high-density compression weave has a knit density ≥22 stitches / inch, and the breathable weave has a porosity ≥45%. The main body, hood, and sleeves each have corresponding zoned warmth-retaining structures, including a main body warmth-retaining zone, a neck protection zone, and a joint protection zone. The main body warmth-retaining zone features a three-dimensional puff weave; the neck protection zone features a high-density waffle weave; and the joint protection zone features large honeycomb weave at the waist, abdomen, and elbows. This utility model has the advantage of synergistic smog protection and warmth retention, satisfying both needs.

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 utility model discloses a flue type waste heat recycling device, which belongs to the field of waste heat recovery and comprises a flue connecting pipe, a switch component arranged at the right end of the flue connecting pipe, a dust backflow prevention component arranged at the right end of the switch component, and a filter component arranged at the right end of the dust backflow prevention component. According to the technical scheme, the heat storage device is characterized in that reverse protruding blocks which are distributed in a staggered mode are arranged in a conveying pipe, dust backflow is effectively prevented, the situation that dust flows back to block a flue connecting pipe is avoided, a large-hole filtering plate and a small-hole filtering plate are sequentially arranged in the filtering assembly in a matched mode, and the heat storage assemblies are arranged at the outer end of the filtering assembly in a matched mode. The waste heat is filtered in a classified mode; meanwhile, the contact area with the waste heat is increased through spiral heat conduction pieces in the heat storage assembly, meanwhile, a circulation loop is formed through a backflow pipe, the waste heat circulates in the device, the heat storage assembly can be independently taken down to be used at other places, and waste heat recycling is effectively achieved.

The invention provides an Al-La-Ce series rare earth composite high heat storage refractory clay brick and a preparation method thereof, and relates to the technical field of refractory bricks, the refractory brick comprises the following raw materials by weight: 10-25 parts of 3-2mm kaolin, 12-20 parts of 2-1mm kaolin, 30-40 parts of 1-0.088 mm kaolin, 18-22 parts of less than 0.088 mm kaolin, 8-16 parts of soft clay powder, 3-5 parts of lignin combined slurry, and 1-10 parts of a rare earth functional additive; wherein the rare earth functional additive comprises a lanthanum element and a cerium element. After the clay refractory brick is modified by the rare earth additive, the prepared finished product has the advantages that the normal-temperature strength is increased, the water absorption rate is reduced, the refractoriness under load is increased, the heat storage rate is increased, and the saturated heat storage rate is increased; and the operation stability and the heat energy conversion efficiency of the hot-blast stove are improved.

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.