65 results about "Heat storage material" patented technology

The present application relates to the technical field of slag resource processing, more particularly, it relates to a slag recycling secondary treatment process. It comprises the following steps: titanium-containing blast furnace slag recycling and processing, titanium-containing blast furnace slag resource processing, composite adsorbent preparation, resource secondary treatment and composite phase change heat storage material preparation. In the present application, through the resource processing of the titanium-containing blast furnace slag, the titanium-silicon composite matrix material and the mixture powder can be separated from the titanium-containing blast furnace slag, and the titanium-silicon composite matrix material and the mixture powder can be used for preparing the composite adsorbent and used as the matrix material of the composite phase change heat storage material respectively, so as to achieve the purpose of efficient resource utilization of the titanium-containing blast furnace slag and play the characteristics of each component in the titanium-containing blast furnace slag.

The present disclosure provides a carbon-based heat storage material and a preparation method thereof, which takes carbon-based raw materials as main components, takes slurry coal direct liquefaction residual as a binder, adds fiber additives, and adjusts the ratio of each component, so that the prepared carbon-based heat storage material can effectively store and transfer heat, has good stability, and can be prepared by only mixing and profiling at normal temperature and medium-temperature calcination, so that the preparation process is simple and the energy consumption is low.

Disclosed in the present application are a quaternary sulfate molten salt heat storage material, a composite heat storage material, and a preparation method therefor and the use thereof. The preparation method for the quaternary sulfate molten salt heat storage material comprises: subjecting first sulfate-type salt lake raw brine to freezing and recrystallization treatments to obtain sodium sulfate decahydrate; subjecting second sulfate-type salt lake raw brine to evaporative crystallization and recrystallization treatments to obtain magnesium sulfate heptahydrate; and mixing the sodium sulfate decahydrate, the magnesium sulfate heptahydrate, potassium sulfate, and calcium sulfate, heating the mixture at a first heating rate to a first dehydration temperature for a first heat treatment, then heating at a second heating rate to a second dehydration temperature for a second heat treatment, and then heating at a third heating rate to a molten blending temperature for a third heat treatment, and thereby obtaining the quaternary sulfate molten salt heat storage material. In the present application, a quaternary sulfate molten salt heat storage material is prepared by a one-step method using dehydration and coupling technology. Moreover, the specific heat of the composite heat storage material is improved by adding nanoparticles to the quaternary sulfate molten salt heat storage material.

This invention discloses a regenerative tar internal pyrolysis gasification furnace device, comprising a hydraulic piston feeding system, a pyrolysis gasification furnace, a heat conduction system, a heat storage system, a heat exchange system, and a gas-phase catalytic system connected to the heat exchange system. The pyrolysis gasification furnace includes a furnace body and a slag discharge system. The furnace body includes a hopper, a pyrolysis gasification chamber, and a jacketed cavity. The hydraulic piston feeding system is connected to the hopper, which is connected to the pyrolysis gasification chamber. The slag discharge system is located at the bottom of the furnace body. The heat conduction system and the gas-phase catalytic system are located outside the pyrolysis gasification chamber. The heat storage system includes a heat storage material layer placed within the jacketed cavity. The inlet of the gas-phase catalytic system is connected to the upper part of the pyrolysis gasification chamber, and its outlet extends outside the furnace. The heat conduction system is connected to the heat storage material layer. This device can reduce heat waste, improve the temperature field distribution inside the furnace, increase the overall energy utilization rate, remove tar content from combustible gas, and improve gasification efficiency and calorific value of the gas.

The application discloses a kind of compositions for road surface water treatment, including multiple hollow spheres with 4-10cm inner diameter and 1-3mm wall thickness, 10-15 parts of void filling material, 5-10 parts of water-absorbing material, 6-10 parts of initiator, 10-20 parts of heat storage material, 15-20 parts of thermal insulation material, several columnar packaging tubes with 0.5-2cm diameter, 1-2mm wall thickness and 3-5cm length, and appropriate amount of adhesive;The multiple hollow spheres with 4-10cm inner diameter and 1-3mm wall thickness are made of 100 parts of porous carrier material;The several columnar packaging tubes with 0.5-2cm diameter, 1-2mm wall thickness and 3-5cm length are made of 5-10 parts of packaging material;The composition can quickly absorb and fix the accumulated water in the road, realize the persistent evaporation of absorbed water, reduce the entry of road surface water into the road surface structure, and effectively avoid the road diseases caused by water erosion of the road surface structure;The application also discloses a method for making the composition for road surface water treatment.

This invention relates to a chemical heat storage and release system for performing heat storage and supply. It mainly includes heat storage materials, heat storage equipment, heat release equipment, and storage tanks. The various devices are connected by pipelines to achieve material transfer and energy conversion. The heat storage and heat release equipment can operate independently, realizing waste heat recovery and improving thermal energy utilization. This system can provide green energy and is suitable for large-scale energy storage.

This invention discloses a steel slag-based solid thermal energy storage material and its preparation method, relating to the field of solid thermal energy storage technology. The preparation method includes: pretreating steel slag; placing the pretreated steel slag in a reducing atmosphere; heating it to the reduction temperature and holding it at that temperature for a period of time; then naturally cooling it; mixing the modified steel slag with multiple particle sizes; sequentially pressing and molding the compounded steel slag; and finally, cooling it to obtain the steel slag-based solid thermal energy storage material. This integrated design, which allows the steel slag to possess both good electrical conductivity and thermal storage properties, and allows heat to be generated and stored directly within the thermal energy storage material, eliminates the heat transfer link from the heating element to the heat storage body in traditional solid thermal energy storage methods, avoiding energy efficiency losses caused by temperature gradients and interfacial thermal resistance. Furthermore, the integrated heating and thermal storage module units can be flexibly combined in series and parallel to construct thermal energy storage systems with a full power range of 10 kW to 100 MW.

This invention provides an ion-doped calcium oxalate thermochemical heat storage material and its preparation method, the chemical formula of which is Ca. 1‑ x M x C2O4·H2O, where M is a dopant ion and x is the mole fraction of the dopant ion; M includes Mg 2+ Co 2+ Zn 2+ 、Sr 2+ One or more of the following. This invention regulates the lattice parameters, local coordination environment, defect state, and microstructure of calcium oxalate by doping with ions. While maintaining the original reversibility and cycle stability of the calcium oxalate system, it further optimizes its dehydration thermal storage temperature range, thermal response boundary, structural evolution behavior, and application compatibility materials, thereby improving the thermochemical thermal storage performance of calcium oxalate from the internal structural level.

The application discloses a kind of distributed single-tank heat storage power generation systems and operating methods, including double-temperature stage power generation system;Double-temperature stage power generation system includes heat storage tank, mixed desuperheater, ejector, high-temperature turbine generator, low-temperature turbine generator, high-temperature regenerator, main compressor, cooler, low-temperature regenerator, re-compressor;Wherein, heat storage tank further includes the tank body with heat storage material, first spiral tube bundle, second spiral tube bundle and electric heater;Electric heating is vertically arranged in heat storage tank, and first spiral tube bundle and second spiral tube bundle are vertically symmetrically arranged on the two sides of electric heater.The application realizes that high and low temperature turbine generator import temperature always remains constant when heat storage tank releases heat by high and low temperature stage working medium outlet cooperation cooling device, effectively solves the variable working condition problem caused by sliding temperature operation when single-tank heat storage tank drives power generation system, improves the stability of power generation system and the utilization efficiency of energy in system.

This invention relates to a method for preparing a core-shell structured Al-Zn@Al2O3 composite phase change thermal storage material, belonging to the technical field of medium- and high-temperature phase change thermal storage materials. This invention involves adding an aluminum powder suspension to an HCl solution and stirring at 45–65°C for 5–10 minutes. Gelatin is then added, and the mixture is reacted at 45–65°C with stirring for 10–20 minutes to obtain solution A. NH4F solution is slowly added to solution A at 40–60°C with stirring, and the reaction continues for 30–60 minutes. A mixture of zinc sulfate solution and ethylenediaminetetraacetic acid is then added, and the mixture is reacted for 3–5 hours. After standing, the solid and liquid are separated. The solid is washed 3–5 times alternately with anhydrous ethanol-water-anhydrous ethanol and dried to obtain solid B. Under a protective atmosphere, solid B is uniformly heated to 600–660°C and calcined at high temperature for 2–4 hours to obtain aluminum-zinc alloy powder. Under an air atmosphere, the aluminum-zinc alloy powder is uniformly heated to ~800°C and calcined at high temperature for 1–4 hours to obtain a core-shell structured Al-Zn@Al2O3 high-temperature phase change heat storage material.

Provided is a technique for heating a substrate so as to equalize the temperature of the substrate.　The present invention comprises a heat insulator including a heat storage material disposed in the vicinity of a substrate accommodated in a reaction container configured to be heated to a predetermined temperature, wherein the heat storage material is configured such that, when the melting point of the heat storage material is higher than the predetermined temperature, the heat storage material is solid, and when the melting point of the heat storage material is lower than the predetermined temperature, the heat storage material is liquid.

This invention discloses a self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption, belonging to the field of passive air conditioning technology for human living environments. It includes a functional decorative panel assembly with a three-dimensional microscopic adsorption texture layer attached to its substrate surface; a thermal induction airflow guiding backplate, disposed on the back of the functional decorative panel assembly, forming a vertical acceleration airflow duct; a phase change heat storage material, attached to the inner side of the thermal induction airflow guiding backplate or integrated into the thermal induction airflow guiding backplate material, forming a conical structure with a high center and low sides in the vertical acceleration airflow duct; an adsorption purification module installed within the vertical acceleration airflow duct; and a volatile organic compound (VOCs) adsorption grid attached to the inner side of the functional decorative panel assembly. Utilizing the indoor temperature difference and the latent heat released by the phase change heat storage material, a thermal buoyancy field is formed within the vertical acceleration airflow duct, driving indoor air flow. This invention achieves self-sustaining air conditioning of the decorative wall hanging without electricity or noise.

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 product is intended for use with a heat storage material or cold storage agent, which is set to a predetermined temperature, stored inside the box, and is intended to be attached to a motorcycle for transport.

The application provides a solid waste-based gradient porous ceramic self-repairing high thermal shock resistance heat storage material and a preparation method. The heat storage material is in a spherical structure or a honeycomb structure. The heat storage material comprises a surface layer, a transition layer and an inner layer from outside to inside. The porosity of the surface layer is less than that of the inner layer. The density of the transition layer continuously changes in the direction from the surface layer to the transition layer. The heat storage material is internally provided with a second phase nanoparticle self-repairing system loaded with FeO / graphene double metal oxide. The nanoparticle is a FeO nanosheet with a surface containing -COOH and -OH functional groups. The application uses solid waste as a main raw material, adopts a gradient structure, nanometer enhancement and an in-situ self-repairing mechanism and other technologies, and can not only provide excellent thermal shock stability, but also realize a crack self-repairing heat storage material, improve the comprehensive performance of the storage material and solve the problem of serious damage of the heat storage material for a high-temperature kiln.

The utility model provides a kind of rigid-flexible combination circuit board with gradient buffer layer, including hard circuit board and soft circuit board, the surface of hard circuit board is equipped with stepped open slot, and the combination area of hard circuit board and soft circuit board is built in following order: gradient buffer layer, dynamic heat dissipation structure, electromagnetic shielding skin;Wherein, gradient buffer layer covers the entire combination area surface of hard circuit board, including unslotted entity area and the inner and outer edges of open slot, from inside to outside including: metal support layer, conductive soft rubber layer, wave card slot layer;Wave card slot layer surface is formed by laser direct writing bionic wave groove;Dynamic heat dissipation structure is tiled above gradient buffer layer, including microchannel base plate, phase change heat storage material layer, heat conduction via hole;Electromagnetic shielding skin three-dimensionally covers the outer surface of entire combination area, from outside to inside including: braided shielding layer, wave-absorbing medium layer, conductive adhesive layer.Mechanical transition is smooth, improve bending life, with heat dissipation and electromagnetic shielding function, improve service life.

The utility model discloses a novel glass coffee pot belongs to coffee pot technical field. In view of the problem that flow is not controlled when pouring coffee in the prior art, the utility model through the gear and rack drive mechanism and the modularization shunt structure's synergistic effect, the control precision of coffee pouring flow is improved obviously. The design of knob drive stopper linear movement, the sensitivity of flow regulation response is optimized greatly, and the flow mutation problem of traditional spout is solved completely, and the even flow passage formed by the multiple shunt plates effectively restrains the turbulent flow of coffee liquid, and the synchronous realization prevents splashing and prevents residue from blocking, and the composite protection system that side stopper and baffle constitute insulates high temperature part scalding risk while guaranteeing leakproof sealing. The double -layer glass kettle body combines phase change heat storage material, and greatly prolongs coffee constant temperature length by latent heat circulation principle. The whole structure is compact and reasonable, and under the premise of not increasing operation complexity, the multiple technical advantages of accurate flow control, long -term heat preservation and safety protection are achieved simultaneously.

The application discloses a low-temperature dehumidification drying equipment driven by a heat pump and a heat chemical energy storage and a control method thereof. The core of the low-temperature dehumidification drying equipment driven by the heat pump and the heat chemical energy storage is a deep cooperative coupling system composed of a cascade high-temperature heat pump, an integrated double-function reactor and a drying chamber. The reactor is internally provided with a heat chemical adsorption composite heat storage material and a stirring assembly. The energy storage regeneration and the drying energy release double modes are completely isolated and switched through a gas path switching unit, so that the reactor is compatible with the high-temperature dehydration regeneration and the low-temperature adsorption dehumidification and temperature rising double working conditions in the same cavity, and becomes a core unit for synchronously completing air dehumidification and temperature rising in a closed drying cycle. The application creatively utilizes the high-temperature heat pump coupling heat chemical heat storage technology. Compared with other heat storage technologies, the technology can realize efficient energy storage through peak shifting, significantly reduces energy consumption, greatly improves energy utilization efficiency, saves operation cost by more than 65%, increases the drying rate by more than 40%, and effectively overcomes the defects of the existing drying equipment, such as high energy consumption, asynchronous dehumidification and temperature rising, no energy storage function, high operation cost and insufficient drying quality stability.

The present application relates to the rapid determination of the thermal conductivity-based green building insulation material detection and screening system, and relates to the thermal physical property measurement and temperature sensor technical field.The system comprises a transient plane heat source probe integrated with a high-density micron-level embedded micro temperature sensor array, a temperature sensing unit and a data processing unit, through synchronous acquisition of near-field multi-point temperature response and operation of multi-physical field coupling inversion and signal collaborative filtering algorithm, at least two of the thermal conductivity, the thermal diffusivity and the volumetric heat capacity are decoupled and output.The present application can solve the problem of poor repeatability caused by weak signal and environmental interference in the measurement of high thermal conductivity or high heat storage materials, and realize the overall accurate evaluation of the thermal physical properties of the materials in a single test.

The application discloses a millisecond anti-saturation control method and system for solid waste heat storage material. The method comprises the following steps: detecting the thermal field distribution of the solid waste heat storage material in real time through a neural state temperature sensing array, and converting the temperature gradient existing in the thermal field into an electric pulse frequency signal; based on the synaptic timing-dependent plasticity rule, dynamically adjusting the power weight distribution of a plurality of heater units according to the deviation time delay of the electric pulse frequency signal and a preset frequency threshold; when the electric pulse frequency signal exceeds the preset frequency threshold, it is determined as a precursor of overshoot, and an inhibitory postsynaptic potential is generated through a synaptic control engine to millisecond adjust the power of the corresponding heater unit; accumulate the continuous overshoot times when the electric pulse frequency signal exceeds the preset frequency threshold, when the continuous overshoot times exceed the preset number threshold, trigger the biological anti-saturation mechanism to realize entropy reduction by performing forced cooling and energy redirection.

The application discloses a kind of solar-driven biomass continuous pyrolysis system and method based on thermochemical heat storage, system includes: solar heat collecting unit, for collecting solar radiation energy;Biomass pyrolysis reaction unit is equipped with biomass feed inlet and product discharge port;Thermochemical heat storage unit is equipped with CO2 import and CO2 export, internally filled with thermochemical heat storage material with MgO / MgCO3 as active component;Thermochemical heat storage unit is respectively with solar heat collecting unit and biomass pyrolysis reaction unit by heat exchange medium circulation pipeline heat exchange;CO2 circulation subsystem;Control system, with solar heat collecting unit, biomass pyrolysis reaction unit, thermochemical heat storage unit and CO2 circulation subsystem electric connection, according to preset parameter automatic adjustment operating mode and heat exchange medium flow.This scheme will unstable solar energy into chemical energy storage, and release in the form of heat energy, for biomass pyrolysis provides continuous, controllable heat source.

The application relates to the technical field of phase change heat storage materials, in particular to a composite phase change heat storage material based on silica gel and a preparation method thereof, and the preparation method comprises the following steps: mixing tetraethoxysilane, ethanol and deionized water, stirring, adding ammonia water dropwise to form a homogeneous precursor solution; sealing and heating to obtain a silicon dioxide nucleating agent; determining a nucleation site characterization value based on the light transmittance and blue light intensity of the nucleating agent, and adjusting the ammonia water dropwise speed of the subsequent nucleating agent preparation according to the characterization value; mixing urea, erythritol and deionized water and heating, adding a dispersing agent and then adding the nucleating agent dropwise, dynamically adjusting the stirring speed by real-time monitoring of the light transmittance change rate, and obtaining a eutectic phase change material solution; and finally drying and forming. Through closed-loop regulation and control of the nucleating agent activity characterization and dispersion process, the application significantly reduces the supercooling degree of the material and improves the thermal cycle stability, and solves the core problem of low nucleation efficiency of organic phase change heat storage materials.

The application discloses a heat storage material and a preparation method thereof, and belongs to the field of heat storage. The heat storage material at least comprises a base body containing graphite and silicon carbide, and an infrared transparent material inlaid in the base body. The heat storage material and the preparation method thereof can improve the energy storage density and heat transfer capacity of the heat storage material.

This invention belongs to the field of thermal storage materials technology and discloses a high thermal conductivity, low expansion magnesium-based thermal storage alloy, which is composed of the following components by weight percentage: 81.2% WE43 rare earth magnesium alloy, 8% Ti2AlC powder, 6% manganese powder, 4% aluminum powder, and 0.8% boron powder. Using WE43 rare earth magnesium alloy as a stable matrix, and combining Ti2AlC powder with manganese, aluminum, and boron powder, an optimal ratio system of matrix, high thermal conductivity phase, and gradient phase precursor is constructed. This achieves synergy between the thermal conductivity of Ti2AlC and the low expansion of the Mn-Al-B gradient phase, fundamentally solving the problem of the mutual constraint between thermal conductivity and low expansion performance in traditional magnesium-based alloys. The Ti element acts as a bridge to strengthen the bond between the bifunctional phase and the magnesium matrix, preventing functional phase detachment and aggregation. Ti2AlC forms a continuous thermal conductivity path to improve heat transfer efficiency, while the Mn-Al-B gradient phase precisely controls the coefficient of thermal expansion, enabling the alloy to maintain high thermal conductivity, low expansion, and low decay rate over a wide temperature range. Furthermore, its high density and excellent surface quality enhance its structural stability and recyclability.

The utility model provides a kind of electrical cabinet for low temperature environment, including cabinet, cabinet one side opening, cabinet opening is connected with cabinet door, cabinet inside is divided into heat dissipation cavity and electrical cavity by partition, heat dissipation cavity is located in electrical cavity upside. Heat dissipation cavity is connected with radiator, evaporator is arranged in electrical cavity, and radiator and evaporator are connected by pipeline. Pipeline is filled with phase change heat storage material. Cabinet top is equipped with heat dissipation port. The utility model divides cabinet into heat dissipation cavity and electrical cavity, so that electrical cavity is always in relatively sealed environment, avoids heat dissipation port to influence cabinet sealing, improves cabinet heat preservation effect. At the same time, by setting phase change heat storage material, the temperature of electrical cavity is transferred to heat dissipation cavity for discharge using phase change process of phase change heat storage material, and heat dissipation energy consumption is reduced, and phase change heat storage material can store waste heat to adjust electrical cavity temperature, reduce heater power consumption.

This invention relates to a thermal storage material suitable for thermal management in environments with large temperature differences and its preparation method. The thermal storage material has a core-shell structure, with the core comprising a double-layer structure of a phase change layer and a photothermal layer in contact, and the outer shell comprising an encapsulation layer. The thermal storage material of this invention utilizes its core-shell structure to achieve integrated functions of photothermal conversion, latent heat storage, and encapsulation protection, solving the contradiction between the undercooling stability of the phase change layer and improving photothermal conversion efficiency. It has good application prospects in long-term solar thermal storage and is suitable for thermal management in environments with large temperature differences from -20℃ to 140℃.

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 present application relates to the technical field of phase change heat storage material heat transfer prediction, and discloses a soil-air heat exchanger heat transfer prediction method and system based on phase change material assistance, in particular to the soil-air heat exchanger heat transfer prediction method and system based on phase change material assistance.The present application combines a physical model with a data-driven method, generates high-quality synthetic data by adopting the way of constructing a calculation domain, and then trains a gated recurrent neural network by combining historical data, so as to significantly reduce the calculation time and professional threshold required for soil-air heat exchanger performance prediction, thereby providing an efficient prediction mode, which can quickly and accurately predict the heat transfer performance of the soil-air heat exchanger, and thus provide a reliable basis for system optimization design and real-time operation control.

The application provides a multi-stage electromagnetic field phase change temperature control solid waste heat storage material sintering system and method, and belongs to the technical field of solid waste resource utilization. The system and method can at least partially solve the problem that existing solid waste-based heat storage materials cannot realize efficient and low-energy sintering at low temperatures. The application comprises a press and a multi-stage electromagnetic field dynamic temperature control system. The multi-stage electromagnetic field dynamic temperature control system comprises a primary coil surrounding the outside of a green body raw material and a secondary coil preset inside the green body raw material. The application has the beneficial effect of setting the multi-stage electromagnetic field dynamic temperature control system. The sintering process can be adjusted at different stages according to the demand through the dynamic adjustment of the multi-stage electromagnetic field. The inductance and resistance heating methods in the multi-stage electromagnetic field dynamic temperature control system are used in cooperation to reduce energy consumption. The external primary high-frequency coil and the internal secondary low-frequency coil are used in cooperation for heating to realize uniform heating from the surface to the inside, thereby improving the structural compactness and mechanical properties of the solid waste-based heat storage material.

A temperature equalizing unit includes at least one inorganic fiber member formed by binding or entangling inorganic fibers to have a desired shape, a heat storage material configured to contact the inorganic fiber member; and a storage body configured to be disposed in contact with a passage through which a heat medium flows, with the inorganic fiber member and the heat storage material being stored therein. A volume of the inorganic fiber member in the storage body is 30 to 70 vol %.