44results about How to "Improve photothermal efficiency" patented technology

The present invention is related to a novel functional nanoparticle-based antibiotics and preparation method thereof, especially related to an antibiotics-modified nanoparticle. The functional nanoparticle-based antibiotics according to the present invention can be used as the affinity probes and the photothermal agents to effectively inhibit the cell growth of pathogenic bacteria under NIR irradiation.

The invention provides a dual-functional nanoparticle, a soluble microneedle carrying the dual-functional nanoparticle and a preparing method and application. The dual-functional nanoparticle is higher in drug loading capacity and has duplex targeting capacity by adding cationic phospholipids and hyaluronic acid for modification. The dual-functional nanoparticle is composed of a polylactic acid-glycolic acid copolymer, vitamin E succinate, cationic phospholipids, a photosensitizer and a chemotherapy drug. The soluble microneedle is composed of a nanoparticle carrying needle and a substrate. The needle is made of polyvinyl alcohol and povidone, and the substrate is made of polyvinylpyrrolidone. Compared with traditional intratumor injection and tail vein injection, the soluble microneedle carrying the dual-functional nanoparticle and prepared through a multi-step centrifugal method has higher photo-thermal and tumor inhibition effects, and an effective scheme is provided for photo-thermal and chemotherapy combined treatment of superficial tumors.

The invention provides a preparation method of a gold-copper sulfide nano material with a hollow core-shell structure and application thereof. The preparation method comprises the following steps of:mixing hexadecyl trimethyl ammonium bromide, chloroauric acid and sodium borohydride, and reacting to obtain gold seed solution; mixing the hexadecyl trimethyl ammonium bromide, silver nitrate, the chloroauric acid, ascorbic acid and the gold seed solution, and standing for growth to obtain a gold-core nano material; mixing polyvinylpyrrolidone, water, copper chloride and the gold-core nano material, and reacting to obtain a first reaction product; reacting the first reaction product with sodium hydroxide, reacting the obtained second reaction product with hydroxylamine hydrochloride, then reacting with sodium sulfide, centrifuging, cleaning obtained precipitates and then drying to obtain the gold-copper sulfide nano material with the hollow core-shell structure. The gold-copper sulfide nano material prepared by the preparation method has the advantages that under the irradiation of near-infrared light, the photothermal property of the copper sulfide is obviously improved by the plasmaresonance energy transfer mechanism of gold nano particles; the photodynamic property is higher; chemotherapeutic drugs also can be carried, and the tumor-cell killing efficiency is higher.

A power generation system, including: a solar energy concentration system, a biomass gasification device, a gas-powered generator, a steam turbine, a steam-powered generator. The solar energy concentration system is connected to a solar energy heat exchange system. The biomass gasification device is connected to the gas-powered generator. The gas outlet of the gas turbine is connected to the gas exhaust heat system. The second steam outlet of the gas exhaust heat system is connected to the second and the third cylinders of the steam turbine. The first steam outlet of the gas exhaust heat system and the steam outlet of the solar energy heat exchange system are connected to a steam mixing regulating system. The mixed steam outlet of the steam mixing regulating system is connected to the first cylinder of the steam turbine.

The invention discloses a water-borne photoresponse self-repairing coating material and a preparation method thereof. The coating material is composed of an organic silicone modified water-borne epoxyresin emulsion, MXene, water, a water-borne amine curing agent, a dispersant, a flatting agent and a defoaming agent which are mixed in a certain number of parts by mass. According to the water-bornephotoresponse self-repairing coating material and the preparation method thereof, the two dimensional layered material MXene is used as a photothermal filler, the MXene and the organic silicone modified water-borne epoxy resin are dissolved in water, then the water-borne amine curing agent and an addition agent are added, the water-borne photoresponse self-repairing coating material can be obtained, at the same time, the problem of MXene agglomeration is solved, and the photothermal efficiency of the MXene is improved; and the preparation process of the coating material is simple, security and environmental protection are realized, controllable and fast self-repairing can be conducted through visible light or infrared light irradiation response after the water-borne photoresponse self-repairing coating material is prepared into a coating, and the water-borne photoresponse self-repairing coating material is suitable for large-scale production.

The invention discloses a gold nanoparticle / graphene nano composite material which is prepared by a chemical assembly method for gold nanoparticles and graphene, and a directional freeze-drying methodis used for preparing the gold nanoparticle / graphene nano composite material into a gold nanoparticle / graphene three-dimensional light-heat (steam) conversion material. The material can efficiently convert light energy into heat energy, so that water can be quickly heated into water vapor to finally achieve the water purifying purpose, and therefore, various functions such as seawater desalting,fractionation, sterilization and sewage treatment are realized.

The invention provides a medium-high temperature solar energy selective absorption coating layer and a preparation method thereof. The coating layer is prepared from the following raw materials in parts by weight: 30-40 parts of organosilicone resin, 30-40 parts of a CuCoMnOx functional powder, 10-20 parts of xylene, 2.5-5 parts of a wetting dispersant, 2.5-5 parts of an antisettling agent, 3-5 parts of a leveling agent, 1-3 parts of a defoaming agent and 1-2 parts of a silane coupling agent. The solar energy selective absorption coating layer has the advantages of high absorption rate, high heat conductivity, low radiation rate and high stability, and effectively improves the selective absorption of solar energy by a heat absorbing coating; and the preparation process is simple, the costis low, the equipment requirements are low, the production process is environmentally friendly, and the preparation method is prone to industrialized production and is suitable for large-scale promotion and application.

The invention discloses a preparation method of a novel three-dimensional solar photo-thermal oil-water separator. The preparation method comprises the following steps: cutting foam Cu into a rectangle, and respectively cleaning the rectangular foam Cu with hydrochloric acid, absolute ethyl alcohol, acetone and deionized water for later use; preparing a mixed aqueous solution of sodium hydroxide and ammonium persulfate, soaking the cleaned the rectangular foam Cu in the mixed aqueous solution, taking out the rectangular foam Cu, cleaning the rectangular foam Cu with deionized water, soaking the rectangular foam Cu in sodium sulfide, taking out the rectangular foam Cu, bending the rectangular foam Cu into an inverted U shape, and enabling the inverted U-shaped Cu<x>S / foam Cu to vertically penetrate through a supportable substrate to obtain a Cu<x>S composite photo-thermal film with a three-dimensional hierarchical structure. The Cu<x>S composite photo-thermal film with the three-dimensional hierarchical structure prepared by the method adopts a composite copper-based sulfide material which is low in cost, high in light absorption capacity and high in photo-thermal conversion efficiency, so the manufacturing cost of a device is greatly reduced, and the stability of the device is improved; and photo-thermal efficiency is high, separation performance is good, any electric drive isnot needed, and cost performance is high.

The invention discloses a preparation method for a nano gold / graphene oxide self-repairing material. A nano gold / graphene oxide composite material can be prepared by mixing and stirring nano-gold particles and graphene oxide at a ratio of 1 : 5-10; and a nano gold / graphene oxide self-repairing material can be prepared by mixing the nano gold / graphene oxide composite material accounting for 0.05-0.5 wt% of a thermoplastic resin material into the thermoplastic resin material. A repairing method for the nano gold / graphene oxide self-repairing material is also disclosed. The repairing method includes irradiating the nano gold / graphene oxide self-repairing material with a laser. The material and repairing method have characteristics of low energy consumption during repairing and low cost, and are simple and economic in repairing means and easy to realize industrialization.

The invention relates to a rotary supporting device for an array type solar optothermal generating collector. One end of a swing arm is fixedly connected with the solar collector, the middle part of the swing arm hinges to an arm stand, the other end of the swing arm hinges to an amplitude driving machine; a bearing supporting wheel is supported on a bearing support, evenly distributed on the rack below a supporting track to support the outer side of the supporting track, a wing plate below the supporting track is equipped with an anti-overturning trolley, the shaft bracket of an anti-overturning trolley is connected with the pedestal of the anti-overturning trolley, the lower end of the pedestal of the anti-overturning trolley is fixed on the bearing support; the middle part on the lower side of a rotating platform is equipped with a locating tube, a ring of locating trolleys are arranged closely on the outside of the locating tube, a trolley support supporting the locating trolley is connected with a locating base, and the locating base is fixed on the rack to form a track locating mechanism. By the device, double angel adjustment of the solar collector can be realized, and solar energy can be collected in an optimal angel.

The invention relates to a natural gas buried pipe anti-frost heaving system combining solar energy and geothermal energy. The natural gas buried pipe anti-frost heaving system comprises a pipe heat exchange device, a solar heat collecting device and a ground source heat pump. The pipe heat exchange device is composed of a natural gas buried pipe and a heat exchange medium channel used for exchanging heat with the natural gas buried pipe. The two ends of the heat exchange medium channel are connected with a main heat exchange medium pipeline, and a first branch pipe and a second branch pipe are connected to the main heat exchange medium pipeline in parallel. The first branch pipe is provided with the solar heat collecting device, and the heat exchange branch pipe is provided with the ground source heat pump. Compared with the prior art, the solar heat collecting device and the ground source heat pump are reasonably combined, and the win-win situation that the natural gas buried pipe is effectively protected against frost heaving, renewable energy sources are fully utilized, and high-grade electric energy consumption is reduced can be achieved; moreover, the environmental benefits of the natural gas buried pipe anti-frost heaving system are remarkable, long-distance heat conveying is not needed, and the basic national policy of saving energy and reducing emission of China is met; and the natural gas buried pipe anti-frost heaving system has good energy saving space and higher practical value.

The invention discloses an ecological health-preservation house for a cold region and an assembly method. An existing greenhouse in the market is low in heat-collecting capacity in an alpine region and large in health preservation difficulty. An ecological health-preservation house for the cold region comprises a base edge, wherein the base edge (1) is rectangular and is connected with a side wall body (13) and a rear wall body (4); the front part of the rear wall body is connected with a health-preservation house body (3); the health-preservation house body is provided with a health-preservation house roof (8) and a health-preservation house front wall; the health-preservation house front wall is provided with a health-preservation house front door (5) and a health-preservation house front window (6); the health-preservation house front wall is provided with a health-preservation house front water curtain wall (9); a side door (2) is arranged at the side part of the health-preservation house body; a health-preservation house inner-layer steel structure frame (7) is arranged between the front side of the base edge and the rear wall body and provided with a heat preservation layer (14); and a glass longitudinal frame (10) and a glass transverse frame (11) are arranged between the front side of the base side and the rear wall body. The application is applied to the ecological health-preservation house for the cold region and the assembly method.

The invention relates to a disc Stirling engine heat collector port heat shield device and application thereof in solar power generation. The disc Stirling engine heat collector port heat shield device comprises a cylindrical heat collection cavity formed by heat-insulation components, wherein the bottom of the heat collection cavity is sealed; the inner side of the bottom is provided with a heat absorption component; the mouth of the heat collection cavity is formed by the butt joint of the small ports of two cone-shaped bodies; a big port of the cone-shaped body on the inner side is connected with the heat collection cavity; the junction of the small ports of the two cone-shaped bodies is provided with a round heat shield to seal the heat collection cavity, wherein the round heat shield is used for reflecting sunlight which enters the heat collection cavity but is not absorbed, and the convective heat exchange of a heat collector and atmospheric environment is inhibited. The reflection to the radiation energy of the heat collector is effectively enhanced, the convective heat exchange of the heat collector and atmospheric environment is completely inhibited due to the heat shield, lost heat from the heat collector port to external space can be effectively reduced, and the optothermal conversion efficiency of the engine heat collector is improved.

The invention discloses a shape-variable polypeptide-croconic acid cyanine dye conjugate as well as a preparation method and the application thereof. The polypeptide-dye conjugate comprises a hydrophilic functional peptide fragment, a hydrophobic croconic acid cyanine dye fragment and a spacer molecule Ahx for connecting the hydrophilic functional peptide fragment and the hydrophobic dye fragment, the hydrophobic dye segment comprises a morphology adaptation unit capable of realizing morphology transformation, and the polypeptide-dye conjugate can generate morphology transformation through specific recognition or action of a morphology transformation driving unit and the morphology adaptation unit; a polypeptide-croconic acid cyanine dye conjugate is self-assembled under a polar condition to form nanoparticles with a stable structure, the nanoparticles are transformed into nanofiber morphology under the specific action of a morphology transformation driving unit, and the photothermal conversion performance of the croconic acid cyanine dye can be effectively improved through morphology transformation; the synergistic treatment of photothermal and chemotherapy is realized, the tumor inhibition effect is further improved, and a good tumor treatment application prospect is achieved.

A power generation system, including: a solar energy concentration system, a biomass gasification device, a gas-powered generator, a steam turbine, a steam-powered generator. The solar energy concentration system is connected to a solar energy heat exchange system. The biomass gasification device is connected to the gas-powered generator. The gas outlet of the gas turbine is connected to the gas exhaust heat system. The second steam outlet of the gas exhaust heat system is connected to the second and the third cylinders of the steam turbine. The first steam outlet of the gas exhaust heat system and the steam outlet of the solar energy heat exchange system are connected to a steam mixing regulating system. The mixed steam outlet of the steam mixing regulating system is connected to the first cylinder of the steam turbine.

The invention discloses a vacuum glass covering plate PVT solar thermal collector. The vacuum glass covering plate PVT solar thermal collector comprises a thermal collector shell, a heat preservationlayer arranged in a cavity of the thermal collector shell, a heat absorbing plate core arranged on the top surface of the heat preservation layer, photovoltaic battery panels arranged on the top surface of the heat absorbing plate core, and a vacuum glass covering plate arranged on the photovoltaic battery panels. A plurality of calandrias are arranged on the bottom surface of the heat absorbing plate core and on the upper part of the heat preservation layer. The vacuum glass covering plate is arranged at an opening of the top of the thermal collector shell and seals the heat preservation layer, the heat absorbing plate core and the photovoltaic battery panels in the cavity of the thermal collector shell. An air interlayer is arranged between the photovoltaic battery panels and the vacuumglass covering plate. The vacuum glass covering plate can improve the heat preservation performance of the thermal collector, protect the thermal collector from freezing at low temperature, and further can lower the temperature of the glass outer surface of the covering plate to reduce heat loss of the surface, so that running reliability and photo-thermal conversion efficiency of the PVT thermalcollector are further improved.

The invention provides a novel ecological sunshine greenhouse in alpine regions and an assembly method thereof. Greenhouses on the market are small in heat-collecting capacity and difficult in heat preservation in the alpine regions. The novel ecological sunshine greenhouse in the alpine regions comprises an outer-layer steel-structured framework, wherein the outer-layer steel-structured framework (5) consists of an outer-layer steel-structured framework section A (5-1), an outer-layer steel-structured framework section B (5-2), an outer-layer steel-structured framework section C (5-3) and an outer-layer steel-structured framework section D (5-4); one end of the outer-layer steel-structured framework section A is connected to a front slope basic edge (1); the outer-layer steel-structured framework section D is connected to the upper part of a rear wall body steel-structured framework (9); the other end of the rear wall body steel-structured framework is connected to a rear slope basic edge (3); the front slope basic edge and the rear slope basic edge are connected through a side basic edge (2); and the front slope basic edge, the rear slope basic edge and the side basic edge are fixedly connected to the ground. The application of the invention is applied to the novel ecological sunshine greenhouse in the alpine regions and the assembly method thereof.

The invention discloses a photovoltaic source solar automatic tracker with simple structure, all-round precise tracking and power supply. The photovoltaic source solar automatic tracker comprises a base which is connected with a square tube; the base at the front, back, left and right of the square tube is connected with a front photometric plate, a back photometric plate, a left photometric plate and a right photometric plate respectively; the front photometric plate, the back photometric plate, the left photometric plate and the right photometric plate are a group of photosensitive resistors respectively; the left side and the right side of the square tube are connected with a left photovoltaic generating plate and a right photovoltaic generating plate respectively; and the left photovoltaic generating plate and the right photovoltaic generating plate are connected with an operational amplifier driving circuit, a horizontal driving motor M1 and a vertical driving motor M2. The operational amplifier driving circuit comprises operational amplifiers U1, U2, U3 and U4; the right photometric plate comprises photosensitive resistors RG1, RG2, RG3 and RG4 which are mutually connected in series; and the photosensitive resistors RG1, RG2, RG3 and RG4 are connected with a first pin of the operational amplifier U1.

The invention relates to a rotary supporting device for an array type solar optothermal generating collector. One end of a swing arm is fixedly connected with the solar collector, the middle part of the swing arm hinges to an arm stand, the other end of the swing arm hinges to an amplitude driving machine; a bearing supporting wheel is supported on a bearing support, evenly distributed on the rack below a supporting track to support the outer side of the supporting track, a wing plate below the supporting track is equipped with an anti-overturning trolley, the shaft bracket of an anti-overturning trolley is connected with the pedestal of the anti-overturning trolley, the lower end of the pedestal of the anti-overturning trolley is fixed on the bearing support; the middle part on the lower side of a rotating platform is equipped with a locating tube, a ring of locating trolleys are arranged closely on the outside of the locating tube, a trolley support supporting the locating trolley is connected with a locating base, and the locating base is fixed on the rack to form a track locating mechanism. By the device, double angel adjustment of the solar collector can be realized, and solar energy can be collected in an optimal angel.

The invention relates to a concentrating solar heat collection crude oil heating system integrated with a heat storing function. Crude oil is heated through a water bath jacket furnace and a heat exchanger, the water bath jacket furnace and the heat exchanger can be in a parallel connection or a series connection or in a connecting mode by combining the parallel connection and the series connection, the heat exchanger is respectively connected with a solar heat collection device, a buffer tank and a heat storing tank, the buffer tank is respectively connected with the heat exchanger, a circulating pump and a high-level oil storing tank, the solar heat collection device is respectively connected with the circulating pump, the heat exchanger and the buffer tank, the heat storing tank is respectively connected with the heat exchanger, the buffer tank and a low-level oil storing tank, the low-level oil storing tank is respectively connected with the heat storing tank and the high-level oil storing tank, and the high-level oil storing tank is respectively connected with the low-level oil storing tank, the circulating pump and the buffer tank. The concentrating solar heat collection crude oil heating system integrated with the heat storing function has the advantages that the concentrating solar energy can generate higher accumulated heat temperature to heat conduction oil which is used for heating the crude oil, meanwhile, the heat storing function is combined with the system, middle and high temperature solar energy utilization is realized, and photo-thermal efficiency of the whole system is increased.

The invention discloses an alternate particle heat absorber and a solar power generation system. A power device is arranged and drives a first heat absorption part and a second heat absorption part to alternately move back and forth between a heat absorption area for receiving solar energy and a heat exchange area in a shell, and particles exchange heat with the first heat absorption part or the second heat absorption part in the heat exchange area. A traditional cavity type particle heat absorber is divided into the process that two heat absorption parts alternately absorb heat and the process that the two heat absorption parts alternately exchange heat with the particles. The two heat absorption parts alternately absorb the heat and the heat exchange process of the particles is located in the shell, so that direct contact between the particles and the external environment is avoided, heat loss is small, and the heat absorption efficiency of the particles in the heat absorption process can be improved.

An in-situ hydrogel composition using nanomicelle as a crosslinking agent and its application. The invention discloses an in-situ hydrogel composition and application suitable for local co-delivery of macromolecular drugs and / or small molecular drugs. Using functionalized micelles as insoluble small molecule solubilization carriers and cross-linking hydrophilic polymer hydrogel framework materials to construct network-like three-dimensional hydrogel structures to achieve locally controlled release of small molecule drugs and biomacromolecular drugs . The in-situ hydrogel composition of the present invention realizes local controllable delivery of small-molecule drugs through the terminal-functionalized micelles as solubilization carriers for insoluble drugs, and the functionalized terminal groups are used as cross-linking agents for hydrogels, Cross-linking with chain-like hydrophilic polymer materials modified by side chain functionalization to construct a hydrophilic network three-dimensional gel structure. Local administration of small molecules for photothermal therapy can effectively improve the photothermal efficiency of photothermal agents and the photothermal stability after repeated irradiation, and can be used in adjuvant therapy after tumor surgery.

The invention discloses a polypeptide-croketocyanine dye conjugate with variable morphology and its preparation method and application. The polypeptide-dye conjugate comprises a hydrophilic functional peptide segment and a hydrophobic croketocyanine dye segment and the spacer molecule Ahx used to connect the hydrophilic functional peptide segment and the hydrophobic dye segment, wherein the hydrophobic dye segment contains a shape adaptation unit that can realize shape transformation, and the polypeptide-dye conjugate The shape transformation can occur through the specific recognition or interaction of the shape transformation drive unit and the shape adaptation unit, and the self-assembly of the peptide-crotonate cyanine dye conjugate under polar conditions forms a nanoparticle with stable structure, and Under the specific action of the shape transformation driving unit, the morphology of nanofibers is transformed, and the transformation of the morphology can effectively improve the photothermal conversion performance of the croconic acid cyanine dye, and realize the synergistic treatment of photothermal and chemotherapy to further improve the tumor inhibition effect. It has a good application prospect in tumor therapy.

The invention relates to a natural gas buried pipe anti-frost heaving system combining solar energy and geothermal energy. The natural gas buried pipe anti-frost heaving system comprises a pipe heat exchange device, a solar heat collecting device and a ground source heat pump. The pipe heat exchange device is composed of a natural gas buried pipe and a heat exchange medium channel used for exchanging heat with the natural gas buried pipe. The two ends of the heat exchange medium channel are connected with a main heat exchange medium pipeline, and a first branch pipe and a second branch pipe are connected to the main heat exchange medium pipeline in parallel. The first branch pipe is provided with the solar heat collecting device, and the heat exchange branch pipe is provided with the ground source heat pump. Compared with the prior art, the solar heat collecting device and the ground source heat pump are reasonably combined, and the win-win situation that the natural gas buried pipe is effectively protected against frost heaving, renewable energy sources are fully utilized, and high-grade electric energy consumption is reduced can be achieved; moreover, the environmental benefits of the natural gas buried pipe anti-frost heaving system are remarkable, long-distance heat conveying is not needed, and the basic national policy of saving energy and reducing emission of China is met; and the natural gas buried pipe anti-frost heaving system has good energy saving space and higher practical value.

The invention relates to a disc Stirling engine heat collector port heat shield device and application thereof in solar power generation. The disc Stirling engine heat collector port heat shield device comprises a cylindrical heat collection cavity formed by heat-insulation components, wherein the bottom of the heat collection cavity is sealed; the inner side of the bottom is provided with a heat absorption component; the mouth of the heat collection cavity is formed by the butt joint of the small ports of two cone-shaped bodies; a big port of the cone-shaped body on the inner side is connected with the heat collection cavity; the junction of the small ports of the two cone-shaped bodies is provided with a round heat shield to seal the heat collection cavity, wherein the round heat shield is used for reflecting sunlight which enters the heat collection cavity but is not absorbed, and the convective heat exchange of a heat collector and atmospheric environment is inhibited. The reflection to the radiation energy of the heat collector is effectively enhanced, the convective heat exchange of the heat collector and atmospheric environment is completely inhibited due to the heat shield, lost heat from the heat collector port to external space can be effectively reduced, and the optothermal conversion efficiency of the engine heat collector is improved.

The invention discloses an automatic hydropower cleaning device for the outer walls of solar vacuum tubes. The device comprises a push-and-pull type cleaning assembly, a hydropower driving assembly and a water distribution control valve, wherein the push-and-pull type cleaning assembly consists of a plurality of cleaning heads and a horizontal beam; the hydropower driving assembly comprises two guide rods; an output mechanism for providing push-and-pull force for the horizontal beam, a telescopic water storage device for driving the output mechanism, and an elastic mechanism are arranged on each guide rod; the telescopic water storage devices are capable of providing clean water for the push-and-pull type cleaning assembly; a water distribution control valve enables the water to flow into the telescopic water storage devices for water storage and energy storage, and enables the telescopic water storage devices to be communicated with the push-and-pull type cleaning assembly so as to provide cleaning water for the cleaning heads. According to the hydropower automatic cleaning device, through utilizing the pressure of tap water for providing power as well as the ingenious design for controlling the working state, the use of electronic devices is avoided, the consumption of electric energy is not needed, and the device is convenient for mounting, and safe to use, and moreover, as the methods of water washing and movable wiping are adopted for performing cleaning on the outer walls of the vacuum tubes, the device is high in cleaning efficiency and good in effect.

The invention provides a high-efficiency low-heat-loss non-imaging concentrating heat collector with a heat storage function. The high-efficiency low-heat-loss non-imaging concentrating heat collectorwith the heat storage function comprises a compound parabolic mirror and vacuum heat collector tubes. Each vacuum heat collector tube is composed of double layers of vacuum glass tubes comprising aninner glass tube and an outer glass tube, wherein the interval between the inner tube and the outer tube is vacuumized. A heat-conducting fin metal tube and a U-shaped heat conducting pipe are arranged in each vacuum heat collector tube, wherein the radial section of the heat conducting finned metal tube is formed in the manner that three fins are connected into an outer circle. The included angleof the three fins is 120 degrees, the inner area of the heat conducting finned metal tube is divided into three areas by the three fins, two areas store a heat exchange medium, and the other one areais filled with a heat storage medium. The U-shaped heat conducting tube is arranged in the two areas filled with the heat exchange medium, and the U-shaped heat conducting tube is fixed to the positions tangent to the midpoints of the two adjacent fins of the heat conducting finned metal tube. The high-efficiency low-heat-loss non-imaging concentrating heat collector with the heat storage function solves the problem that heat cannot be transferred by a heat absorbing medium in the heat collector tubes in time, so that the heat exchange medium in the vacuum heat collector tubes rises to be excessively high, and then the heat collector tubes burst.

The invention belongs to the technical field of optical nano probe, and in particular, relates to a photoluminescence-photothermal nano composite structural material and a preparation method and an application thereof. The composite structural material takes a rare earth fluoride as a core and is a core-shell structural nano material with the exterior wrapped with an organic photothermal substance layer; the material generates 800-1200 nm near infrared fluorescence emission under excitation by a 700-1000 nm near infrared laser, the photo-thermal substance layer can convert optical energy into heat energy to achieve photothermal therapy of tumor. During use, the probe temperature is monitored while the probe performs photothermal therapy; furthermore, the probe is co-incubated with tumor cells or is injected into tumor mice through veins, and high-resolution cancer photothermal therapy and simultaneous optical temperature monitoring can be achieved. The invention provides an effective temperature monitoring tool for photothermal therapy, the damage to normal tissues in tumor thermotherapy can be reduced, and significant application prospects in the field of biomedicine are achieved.

The invention relates to a concentrating solar heat collection crude oil heating system integrated with a heat storing function. Crude oil is heated through a water bath jacket furnace and a heat exchanger, the water bath jacket furnace and the heat exchanger can be in a parallel connection or a series connection or in a connecting mode by combining the parallel connection and the series connection, the heat exchanger is respectively connected with a solar heat collection device, a buffer tank and a heat storing tank, the buffer tank is respectively connected with the heat exchanger, a circulating pump and a high-level oil storing tank, the solar heat collection device is respectively connected with the circulating pump, the heat exchanger and the buffer tank, the heat storing tank is respectively connected with the heat exchanger, the buffer tank and a low-level oil storing tank, the low-level oil storing tank is respectively connected with the heat storing tank and the high-level oil storing tank, and the high-level oil storing tank is respectively connected with the low-level oil storing tank, the circulating pump and the buffer tank. The concentrating solar heat collection crude oil heating system integrated with the heat storing function has the advantages that the concentrating solar energy can generate higher accumulated heat temperature to heat conduction oil which is used for heating the crude oil, meanwhile, the heat storing function is combined with the system, middle and high temperature solar energy utilization is realized, and photo-thermal efficiency of the whole system is increased.