157results about "Absorbing elements" patented technology

The invention relates to a salt-resistant biomass interface evaporation material as well as a preparation method and application thereof, and relates to the technical field of interface evaporation materials. The preparation method comprises the following steps: mixing sunflower fiber dispersion liquid, polyvinyl alcohol and carbon-containing molybdenum disulfide, then adding glutaraldehyde, then carrying out liquid nitrogen freezing and freeze drying, sequentially soaking with a tannic acid solution, a calcium chloride solution and a ferric chloride solution, and then carrying out freeze drying. Natural sunflower fibers are used as a main framework, cotton is used as a supporting material, carbon-containing MoS2 is prepared and crosslinked with polyvinyl alcohol, a hydrophilic functional layer is constructed on the surface of the material through tannic acid, and the tannic acid is coordinated and complexed with Ca and Fe < + >, so that a more stable hydrophilic complexed coating is formed on the surface of the material; the surface wettability and the water conveying capacity of the material are further improved, meanwhile, salt crystal deposition and precipitation in the seawater evaporation process are effectively inhibited, and the oxidation resistance and the seawater corrosion resistance of the material are improved.

The invention discloses a preparation method of salt crystallization prevention aerogel with a vertical microchannel structure. The preparation method comprises the following steps: step 1, preparing a PPy-PDA composite photo-thermal material; step 2, preparing a PVA / HPC solution; step 3, preparation of a PVA / HPC coated PPy-PDA precursor solution; and step 4, preparing the PVA / HPC coated PPy-PDA composite aerogel with the vertical micro-channel structure. The salt crystallization prevention aerogel with a vertical micro-channel structure is prepared by utilizing a directional freezing and chemical cross-linking technology, the salt crystallization prevention aerogel has excellent photo-thermal response capability and energy conversion efficiency, and the vertically arranged micro-channel structure can promote rapid directional transportation of moisture and salt ions and inhibit salt accumulation and crystallization; meanwhile, the chemical crosslinking strategy enhances the mechanical stability and durability of the gel network. The preparation process is controllable, and the material is green and environment-friendly and can be applied to the field of solar interface evaporation desalination of high-salinity wastewater.

This invention provides a flexible solar evaporator with a vertical perforation structure, its preparation method, and its application. The preparation method of the flexible solar evaporator includes constructing a polyurethane / carbon black composite system using polyurethane as a flexible matrix and carbon black as a photothermal conversion material. Ice crystals are directionally grown to form a vertical ice crystal structure through directional freezing. After drying, the ice crystals are removed to obtain a flexible solar evaporator with a vertical through-hole structure. The flexible solar evaporator provided by this invention utilizes the excellent elasticity and mechanical stability of the polyurethane matrix, making it less prone to damage. Combined with carbon black as a photothermal conversion material to construct a composite structure, the polyurethane matrix encapsulates the carbon black during construction, forming a tightly bonded continuous phase. This retains the flexible characteristics of the evaporator while enhancing its structural strength, preventing flaking and damage caused by external impacts or water erosion during use.

The utility model provides a solar heat collection device, and belongs to the technical field of heat collection devices. A solar heat collection device comprises a frame body, a solar heat collection device and a solar heat collection device, the copper pipe is fixedly connected to the support, and the two ends of the copper pipe extend out of the frame body; the heat insulation cotton is fixed in the frame body, a containing groove matched with the copper pipe is formed in the heat insulation cotton, and the containing groove penetrates through the heat insulation cotton so that the two sides of the heat insulation cotton can make contact with the copper pipe; the two heat absorption plates are fixed to the two sides of the heat insulation cotton respectively and make contact with the copper pipe; and the two transparent cover plates are fixed on the frame body, and the two transparent cover plates are respectively distributed on the outer sides of the two heat absorbing plates.

The invention discloses a square tube collector type photovoltaic photo-thermal process system for rinsing forgings, relates to the technical field of solar photovoltaic photo-thermal application, aims to solve the problem of energy utilization, and comprises a photovoltaic system, a heat exchange system, a heat storage water tank and a rinsing process water tank, the heat storage water tank exchanges heat with the rinsing process water tank through the heat exchange system, the heat storage water tank is connected with the photovoltaic system through a pipeline for heat exchange, and the photovoltaic system supplies power to electric equipment in the heat exchange system, the heat storage water tank and the plate heat exchanger. Photovoltaic power generation and photo-thermal utilization are combined, the PV / T heat collector absorbs heat on the back face of the photovoltaic panel through the rectangular pipeline while generating power, water in the heat storage water pool is heated, the comprehensive utilization rate of solar energy is increased, and energy waste is reduced.

The utility model discloses a medium-temperature solar heat collection plate core and a medium-temperature heat collector. The plate core comprises a medium header pipe, a heat collecting wing plate is arranged on the side portion of the medium header pipe, heat collecting blue films are arranged on the upper surfaces of the medium header pipe and the heat collecting wing plate, flow dividing holes are formed in the inlet end and the outlet end of the medium header pipe, a flow dividing cavity in the pipe direction is formed in the heat collecting wing plate, and the flow dividing holes in the two ends communicate with the two ends of the flow dividing cavity correspondingly. The medium header pipe is internally provided with a flow blocking structure which is backward relative to the flow dividing holes in the inlet end in the flow direction. The heat collector further comprises the medium-temperature solar heat collection plate core. The solar heat collector has the beneficial effects that medium fluid in the medium header pipe is shunted into the shunting cavity, and a medium in the shunting cavity is in direct contact with the heat collection wing plate, so that the contact area of the medium and the heat collection wing plate is increased; the machining and manufacturing mode is optimized, and the overall manufacturing cost is reduced; the medium header pipe and the heat collection wing plates are coated with heat collection blue films, and the solar photo-thermal conversion efficiency can be effectively improved.

A Fresnel spot lens desalinization system includes a Fresnel spot lens (FSL) disposed above a heating element. The heating element has a collector plate and a rod portion; The FSL concentrates solar energy onto the collector plate. A condenser vessel is connected to the collector plate. The rod portion extends into the condenser vessel having a heat resistant exterior shell. The rod portion projects interiorly of the condenser vessel at a downward angle and includes a top portion that is connected to a flat head of the heating element. The flat head receives the solar energy generated from FSL The concentrated solar energy increases the temperature of the heating element inside the condenser vessel to vaporize the salt water to steam and transfer the steam into a condensing tube to condense the steam into pure water.

The present disclosure provides an energy collection heat insulation composite film, a preparation method thereof, and heat insulation glass. The energy collection heat insulation composite film comprises a heat insulation layer, an infrared reflection film, a thermoelectric conversion layer, and an ultraviolet absorption film. The infrared reflection film is arranged on the heat insulation layer, the thermoelectric conversion layer is arranged on the side of the infrared reflection film away from the heat insulation layer, and the ultraviolet absorption film is arranged on the side of the thermoelectric conversion layer away from the infrared reflection film. The material of the infrared reflection film comprises a material capable of reflecting infrared rays. The material of the ultraviolet absorption film comprises a material capable of absorbing ultraviolet rays. The energy collection heat insulation composite film can not only consume heat to avoid long-term accumulation of heat in the energy collection heat insulation composite film, but also realize recycling of heat energy.

The utility model discloses a photovoltaic panel with a heat energy recovery device, which comprises a photovoltaic panel body, a heat collection panel and an abutting plate, the heat collection panel is arranged at the rear end of the photovoltaic panel body, and the abutting plate is used for abutting and fixing the heat collection panel at the rear end of the photovoltaic panel body; and the multiple adjusting mechanisms are evenly installed at the rear end of the abutting plate, and the multiple adjusting mechanisms are movably installed in corresponding adjusting grooves formed in the protection plate. A movable abutting plate is installed at the rear end of a heat collection plate on a photovoltaic panel body so that the abutting plate can be connected with a plurality of adjusting mechanisms, when the heat collection plate expands in the heat energy recovery process, a plurality of moving rods connected to the rear end of the abutting plate are pushed to move along corresponding adjusting grooves, and then abutting elastic piece metal springs are compressed; therefore, the abutting plate always pushes the heat collection plate to abut against the photovoltaic panel, the heat energy recovery efficiency cannot be affected due to expansion, and the photovoltaic heat energy recovery efficiency is improved.

Systems related to concentrated solar combination heating and power generation; solar heating; industrial heat driven power generation; thermal storage systems and heat exchanger and power generation systems therefore, including any of the above with optional supplemental fuel production, and associated methods, are generally described.

The application provides a solar panel heat exchanger and a heat exchange method thereof. The solar panel heat exchanger comprises a shell with an inner cavity, a bottom plate sealed to one side of the shell, cold fluid channels and hot fluid channels arranged in the inner cavity, a glass cover plate arranged on the other side of the shell, and a heat absorption plate arranged in the inner cavity. An air layer is formed in the interlayer between the glass cover plate and the heat absorption plate. The cold fluid channels and the hot fluid channels are arranged in the direction from the air layer to the bottom plate in sequence. A plurality of baffles are arranged in the cold fluid channels to form meandering channels. A plurality of baffles are arranged in the hot fluid channels to form meandering channels. The meandering channels in the cold fluid channels have the same trend as the meandering channels in the hot fluid channels. The application can make full use of solar energy, form a double heat source heat exchange structure together with the hot fluid channels, and improve the heat exchange efficiency of the panel heat exchanger.

The solar thermal power generation system includes a thermal energy storage container containing a thermal mass composition capable of storing thermal energy, a solar energy collection system, and a power generation system. The collection system comprises a first closed-flow loop including a solar thermal collector that absorbs solar energy to heat a first working fluid. The heated first working fluid is recirculated through the first closed-flow loop to heat the thermal mass composition. The power generation system consists of a second closed-flow loop including a turbine generator. The second closed-flow loop recirculates the second working fluid through the thermal mass composition, absorbing thermal energy to heat the second working fluid, which is then fed to a turbine to generate electricity in the generator. The second working fluid is water / steam or a compressible gas. The thermal mass composition consists of a mixture of a phase-change material, such as a salt, and a metallic material.

Provided is a solar energy utilization system capable of efficiently utilizing solar energy by the synergistic effect of a solar cell and a solar water heater. This solar energy utilization system is provided with: a perovskite solar cell unit (12) for converting light energy of sunlight into electric energy; a heat collection plate (14) for a solar water heater, which is provided below the perovskite solar cell unit (12), and which collects heat generated by the sunlight that has passed through the perovskite solar cell unit (12); a case (20) for housing the perovskite solar cell unit (12) and the heat collection plate (14) for the solar water heater; a tempered glass part (16) which is provided inside the case (20) and on which the perovskite solar cell part (12) is placed; and a flow path part (18) which is provided inside the housing (20), is in contact with the heat collection plate (14) for the solar water heater, and causes a fluid to flow so as to exchange heat collected by the heat collection plate (14) for the solar water heater.

Ceramic particles for use in a solar power tower and methods for making and using the ceramic particles are disclosed. The ceramic particle can include a sintered ceramic material formed from a mixture of a ceramic raw material and a darkening component comprising MnO as Mn2+. The ceramic particle can have a size from about 8 mesh to about 170 mesh and a density of less than 4 g / cc.

The utility model relates to the technical field of solar heat collecting pipes, and discloses a heat pipe with built-in phase change liquid and a solar heat collecting pipe, which comprise a mounting disc, a solar heat collecting outer pipe is arranged on the right side of the mounting disc, a vacuum nozzle is arranged on the upper side of the outer part of the solar heat collecting outer pipe, and a fin ring is arranged on the outer part of the solar heat collecting outer pipe; and the phase change liquid inner heat pipe is inserted into the solar heat collection outer pipe, and a spiral cavity is formed in the outer portion of the phase change liquid inner heat pipe. According to the heat pipe internally provided with the phase change liquid and the solar heat collecting pipe, the spiral cavity is additionally arranged outside the phase change liquid inner heat pipe, so that the contact area between the phase change liquid inner heat pipe and the outside can be increased, the phase change liquid inner heat pipe can exchange heat with the surrounding environment more sufficiently, and the heat exchange efficiency is improved; and the fin ring additionally arranged outside the solar heat collection outer tube can increase the surface area of the heat collection outer tube, so that the solar energy absorption capacity of the heat collection tube is improved, and the heat collection efficiency of the solar heat collection tube is improved.

According to the present invention, a light-absorbing and heat-storing film is characterized by comprising a metal layer including a protrusion-and-recess-shaped object, wherein the average height of the protrusion-and-recess-shaped object is 100 nm to 1,000 nm.

A solar absorber module, manufactured as a single-piece molded plastic component, comprises a central area (1) with two spaced-apart wall surfaces (4, 5) defining a flow space and two opposing edge areas (2, 3) enclosing the central area (1), each with a collector (8) in the form of a channel communicating with the flow space. Each of the two channels terminates in two first connection ports (12) oriented essentially parallel to the length of the respective channel. Two second connection ports (13) branch off from each channel, oriented essentially perpendicular to the length of the respective channel.The edge regions (2, 3) adjacent to the branches (14) of the second connecting stubs (13) are cranked with a crank angle between 0.5 and 1.1 times the diameter of the respective channel (9) such that the transition from the respective channel to the respective second connecting stubs (13) is recessed towards the central region (1) compared to the wall of the respective channel facing away from the central region (1) between the two crank angles (15). Furthermore, in the area of ​​the crank angle (15) at the transition from the central region (1) to the respective channel (9), there is at least one connecting area (7c) that connects the two wall surfaces (4, 5) to each other.

The application provides a stepped particle heat absorber, comprising: a heat absorber body, which is arranged in a stepped manner; a particle inlet is arranged above the top of the heat absorber body; and a particle collector is arranged below the heat absorber body and used for collecting particles falling from the heat absorber body. The stepped rotating particle heat absorber provided by the application adopts an external heat absorption structure, can absorb heat in the whole circumferential direction, and increases the layout area of the mirror field. The application adopts a disc type stepped falling structure, delays the falling speed of the particles, controls the particle heat absorption process, improves the temperature rise of the particles per unit stroke, and the disc structure can realize automatic distribution of the particles; the adjustment of the particle flow can be realized through a conventional adjusting valve installed on a conveying pipeline. The whole disc structure is in a rotating state, and the temperature difference of the particles caused by the difference of the solar energy reflected by the mirror fields in different directions is eliminated.

System (1) for solar-powered sintering of material (11) comprising a radiation concentration device (3) for providing solar radiation concentrated on a focal point (5), a mirror device (9) with multiple mirrors (13) surrounding a mirror chamber (15) and forming a radiation inlet opening (17) for the mirror chamber (15), wherein reflective surfaces (13a) of the mirrors (13) are arranged on the side facing the mirror chamber (15), and a holder (19) for receiving the material (11) arranged in the mirror chamber (15), wherein the holder (19) forms a sintering chamber (21) extending in an axial direction and in which the material (11) can be arranged, wherein at least one wall (23) made of ceramic material bounds the sintering chamber (21) at least in a radial direction, wherein the at least one wall made of ceramic material is oriented by means of solar radiation reflected from the mirrors (13). It can be heated.

To provide a new transition metal-doped tungsten molybdic acid doped with one or more transition elements.SOLUTION: In the transition metal-doped tungsten molybdate, a compound represented by MoxW1 - xO3 - nH2O (0 ≤ x ≤ 1, 0 ≤ n) is doped with one or more elements selected from the group consisting of transition elements (excluding Mo and W).SELECTED DRAWING: Figure 1

This invention discloses a multi-layer modified quartz glass-based spectroscopic air absorber for solar thermal power generation, relating to the field of solar thermal power generation absorbers. It includes a sealed cavity, a light-transmitting window, a multi-layer array of spectroscopically selective quartz glass plates, an airflow channel, inlet and outlet, and an insulation layer. The quartz glass plates are 3-5 mm thick, with a surface coated with a spectroscopically selective film resistant to temperatures above 800℃, or with metal oxide absorbing components introduced internally. They are arranged in layers according to the ultraviolet, visible, and infrared bands, and can form sub-arrays. The plate surface has fins or grooves to enhance heat transfer and airflow turbulence. Air undergoes multiple loops between layers, being heated step-by-step. The outer low-temperature quartz glass plates and the window effectively reflect the high-temperature long-wave radiation from the interior, reducing heat loss at the front end. This invention achieves volumetric absorption and cascaded utilization of light and heat along the depth of the cavity, significantly improving thermal efficiency and obtaining stable high-temperature air output.

The application discloses a kind of composite photothermal film, the composite photothermal film is with hydrophilic filter membrane as carrier, carbon / iron sulfide is loaded on carrier;Wherein, the side of hydrophilic filter membrane loaded with carbon / iron sulfide is grafted with hydrophobic group.The application also discloses the preparation method of the above-mentioned composite photothermal film, comprising the following steps: (1) heat treatment is carried out to coal slime, and coal slime is carbonized;(2) carbonized coal slime is mixed with pyrite, after mixing, high-temperature calcination is carried out under inert atmosphere, and carbon / iron sulfide powder is obtained;(3) carbon / iron sulfide powder is dispersed in solvent, after ultrasonic treatment, it is loaded on hydrophilic filter membrane by vacuum filtration;(4) polyethylene glycol solution containing hydrophobic agent is used to carry out one side hydrophobic modification to the hydrophilic filter membrane obtained in step (3) by vacuum filtration, and the composite photothermal film with Janus structure of surface layer hydrophobic, lower layer hydrophilic is obtained;Wherein, the side loaded with carbon / iron sulfide is hydrophobic side.The application finally discloses a high-salinity wastewater treatment device containing the above-mentioned composite photothermal film.

A hybrid power generation system in one embodiment comprises a green boiler containing a thermal mass composition operable to store thermal energy, a solar energy collection system which absorbs solar energy to heat a first working fluid and in turn the thermal mass composition, and a power generation system comprising a steam turbine coupled to an electric generator to produce electricity and a nuclear steam supply system which convert a second working fluid comprising water from liquid to steam. Steam output by the nuclear steam supply system flows through the green boiler and is heated by absorbing heat from the thermal mass composition to increase the enthalpy of the steam and concomitantly electric power output from the turbine-generator. The nuclear steam supply system and green boiler may be retrofit to replace existing fossil fuel steam generation systems while retaining the energy conversion part of the fossil power plant.

The invention provides a photo-thermal coupling self-powered system, and the system comprises a substrate which is used for bearing a whole device structure; the light-heat cooperation unit is arranged on the substrate and generates surface charges under illumination and temperature changes; a friction material for generating an electric charge; the electrodes are arranged at the two ends of the triboelectric material pair and are used for collecting charges; the rectification energy storage circuit is connected with the electrodes and used for rectifying, storing or outputting the collected charges outwards; the light-heat cooperation unit can be used as a triboelectric material or a functional layer, charge transfer coupling is carried out through light-induced polarization and pyroelectric effects under illumination and temperature changes, and coupling collection is carried out on multi-mode energy of light energy, heat energy and mechanical energy. According to the application, the photosensitive-thermal cooperation unit is introduced, illumination and temperature change are converted into surface charge quantity, and the problems that traditional TENG can only depend on single mechanical excitation and the energy source is limited are solved.

The present application relates to the technical field of solar interface evaporation, in particular to a light-vapor conversion composite hydrogel sponge and a preparation method and application thereof.The present application provides a preparation method of a light-vapor conversion composite hydrogel sponge, comprising: mixing carbonized coffee powder, sodium alginate and a solution containing lignin-coated nano-silver particles to obtain a mixed solution, soaking polyurethane sponge in the mixed solution, taking out the polyurethane sponge after absorbing the mixed solution, adding calcium chloride, and drying to obtain the light-vapor conversion composite hydrogel sponge.The present application combines biomass waste coffee grounds and lignin-reduced silver to construct a light-vapor conversion composite hydrogel sponge with low water evaporation enthalpy, high thermal efficiency, stable water supply and cyclic stability on the double network of polyurethane and hydrogel.

The invention relates to the field of building energy conservation, and discloses a passive solar house heat exchange system which comprises a thin floor part and an auxiliary part. The thin floor part sequentially comprises a heat insulation layer, a floor layer, a slope making layer, a leveling layer, a heat preservation layer, a bonding layer, a waterproof layer, a heat storage and release layer, a cooling, absorbing and heating water tank and a ceramic tile surface layer from bottom to top, the cooling, absorbing and heating water tank is wrapped in the heat storage and release layer, and the side face of the cooling, absorbing and heating water tank communicates with a cold water pipe and a hot water pipe; the top is connected with a steam nozzle protruding out of the ceramic tile surface layer through a steam pipeline; the auxiliary part comprises a cement nail, a water drip, a window lintel, a movable sunshade curtain, sealing factice and a water pipe. According to the system, daytime heat storage and night heat release are achieved through the heat storage and release layer, different operation modes in summer and winter are switched by means of the movable sunshade curtain, cold and hot water circulation and steam humidification are achieved in cooperation with the cooling water tank, and therefore the indoor heat comfort and the humidity adjusting capacity are improved while energy consumption is reduced.

The invention relates to the technical field of metal materials, and particularly discloses a nickel-based alloy for a photo-thermal power station and a preparation process of the nickel-based alloy. The nickel-based alloy for the photo-thermal power station comprises the following components in percentage by mass: less than or equal to 0.015% of C, less than or equal to 0.015% of N, 22.0-25.0% of Cr, 8.5-12.0% of Mo, 3.50-4.5% of Nb, less than or equal to 0.01% of P, less than or equal to 0.01% of S, less than or equal to 0.0025% of O, 0.01-0.03% of Mg, 0.01-0.03% of Ce and the balance of Ni and inevitable impurity elements, and the mass percentage of Ni is not less than 58%. According to the preparation method, component optimization and heat treatment process optimization are carried out, and the alloy with high purity and high-temperature fatigue resistance is prepared.

A heat transfer device, such as a heat exchanger, has dimensions and flow speed such that Reynolds number for the flow is in a range from 1 to 1000. The device uses a working fluid which is in a state of elastic turbulence. This enhances transfer of heat to or from the working fluid. In some embodiments the fluid is an emulsion with a disperse phase which changes between liquid and solid so that its latent heat of fusion contributes to the amount of heat carried by the working fluid.

The utility model discloses a medium-high temperature cavity type heat collector used in a groove type heat collecting system, which comprises a transparent outer cover pipe and a V-shaped metal groove heat collector, the center of the opening surface of the V-shaped metal groove is located at the center of the transparent outer cover pipe, the inner side or the outer side of the V-shaped metal groove is connected with a metal pipe, and the space between the inner pipe and the outer pipe is vacuumized or filled with gas. A reflecting layer is additionally arranged on the inner side or the outer side of the backlight surface of the transparent outer cover pipe, or an anti-radiation cover is additionally arranged on the backlight part between the transparent outer cover pipe and the heat collector; or a heat insulation layer is added to the backlight part on the outer side of the transparent outer cover pipe; or simultaneously, a heat insulation layer is arranged on the backlight part outside the transparent outer cover pipe. The V-shaped groove is used for replacing a round tube, incident light rays can be absorbed in the V-shaped groove for multiple times, the absorption rate is increased by 3% to 4% similar to that of a cavity absorber, and the defect that a tubular heat collector is low in absorption rate is overcome. The space between the V-shaped groove and the transparent outer cover pipe is vacuumized, a reflecting film or an anti-radiation film or / and a heat insulation layer is added to the backlight part, heat loss is reduced, and the heat loss is low.