46results about "Heat-exchange conduit materials" patented technology

An array of solar collectors includes dual axis reflectors for directing solar radiation to receivers at focal points of the reflectors. Solar radiation is used to heat a thermal energy storage material, which may be used to generate steam for use in power generation with the aid of a turbine. The dual axis reflectors may pivot about independent axes of rotation, thereby enabling use of the reflectors throughout the year.

A solar power tower solar receiver absorber including: an enclosure; at least one panel configured to be illuminated by solar flux; a core made of at least one material with heat conductivity at least partially encompassed by the enclosure; and a plurality of tubes passing through the core and extending substantially in a parallel direction with respect to the panel configured to be illuminated. The tube is configured for circulation of a fluid to be heated, for example a gas for operating a gas turbine.

A solar collector for heating and transferring fluids, having an inlet manifold and an outlet manifold through which fluid is respectively transferred into and out of the solar collector; and a plurality of polymer tubes each connected between the inlet and outlet manifolds, the polymer tubes having co-extruded concentric inner and outer tube layers, wherein the outer tube layer is composed of a harder polymer than the inner tube layer.

A system includes a solar energy receiving device and at least one component in thermal communication with the solar energy receiving device, the at least one component formed from a composite material, the composite material may comprise a matrix of carbon-based fibers, the carbon-based fibers comprising one or more of: mesophase carbon, carbon nanotubes, graphite, graphene and pan carbon. There also could be provided a solar energy receiving device comprising a first surface for receiving solar energy incident thereon, and a second opposing surface, the second surface being electrically conductive; at least one heat transport device in direct contact with at least a portion of the second surface, the at least one heat transport device may comprise at least one internal passage and at least one duct; and a heat transport media flowing within the at least one internal passage and at least one duct.

A plate form solar collector includes a light penetration cover plate, a collecting plate, a heat conduction fluid channel, heat insulating materials and a bottom plate stacked in turn, wherein the heat conduction fluid channel is a pipe fitting composed of an inner layer made of copper materials and aluminum materials. The use of the copper and aluminum composited tube greatly reduces the consumption of the copper materials, reduces the production cost. When the heat conduction fluid channel is welded at the bottom of the collecting plate, the copper aluminium weld is changed into the aluminium-aluminium weld, which reduces the welding difficulty and greatly reduces the investment cost of the welding device, and the aluminium-aluminium weld makes full use of the advantage of high thermal diffusivity of the aluminium metal, advances the conversion efficiency of the collecting plate solar. The collecting plate and the fluid channel are both made of aluminium with fast heat abstraction, wherein the inner layer is the copper material with high thermal conversion efficiency.

The invention relates to a trough type solar all-day heat supply system using dust particles as an energy storage material. According to the technical scheme, a plurality of sets of heat conduction metal are longitudinally arranged in an energy storage tank, a heating heat exchange pipe makes contact with the heat conduction metal, a heat release heat exchange pipe makes contact with the heat conduction metal, and an inner cavity of a dust particle energy storage tank is filled with dust particles; a groove type solar heat collection field heats heat conduction oil and is connected with the dust particle energy storage tank through a heat conduction oil pipe, and the dust particles are heated through the heating heat exchange pipe; and the outer end of the heat release heat exchange pipe is connected with a heat exchanger through the heat conduction oil pipe, heat is released to the heat release heat exchange pipe through the dust particles, and oil well external liquid conveying of the heat exchanger is heated. The trough type solar all-day heat supply system using the dust particles as the energy storage material has the beneficial effects that the dust particles are used as theenergy storage material, the cost of the energy storage material is greatly reduced, the problem of high manufacturing cost of a worldwide heat energy storage system is solved, and the comprehensive manufacturing cost of the energy storage system is 1 / 3-1 / 4 of the manufacturing cost of molten salt energy storage, so that full-time heating application of liquid conveying outside an oil field and anoil well can be achieved.

The invention discloses a solar vacuum heat collection tube. The solar vacuum heat collection tube comprises an inner tube and an outer tube which are connected in a sleeved mode, a vacuum region is defined between the inner tube and the outer tube, and at least one middle glass tube is connected between the inner tube and the outer tube in a sleeved mode. The middle glass tube is arranged, radiation heat exchange between the inner tube and the outer tube needs to pass through all the middle glass tubes, and therefore the heat resistance of the radiation heat exchange process of the inner tube and the outer tube can be increased, the heat transferred to the outer tube by the inner tube through radiation heat exchange can be reduced, the temperature of the outer tube is reduced, the heat of convection heat exchange and radiation heat exchange between the outer tube and the outside is reduced, finally the heat loss of the solar vacuum heat collection tube is reduced, and the heat collection efficiency of a solar heat collection system is improved.

The invention discloses a solar energy heat absorber with built-in lens capable of moving in a reciprocating mode in the axial direction, which comprises a heat absorber casing, a heat absorbing device, a quartz glass window, a non-planar lens, and a lens mounting rack; the heat absorbing device is mounted in the heat absorber casing; the quartz glass window is fixedly mounted at the sunlight inlet of the heat absorber casing through an end cover; the lens mounting rack is of a ring structure, the lens mounting rack is made of a magnetic material, and the non-planar lens is arranged in the center hole position of the lens mounting rack;the lens mounting rack is located in the heat absorber casing and is connected with the end cover through a plurality of springs; the quartz glass window isparallel to the lens mounting rack; and the end cover is provided with a plurality of pulse electromagnets, the magnetic force between the lens mounting rack and the pulse electromagnets enables thelens mounting rack to be close to the quartz glass window. According to the solar energy heat absorber with built-in lens capable of moving in a reciprocating mode in the axial direction, the direction of solar radiation entering into the heat absorber can be dynamically adjusted, so that the solar radiation can reach the surface of a heat absorbing medium dynamically and uniformly, and the heat conversion efficiency of the heat absorbing device is improved.

An ultra-supercritical tower type solar heat absorber comprises a grating hot plate flow equalizing screen, a tube bank and a graphite filling layer. The grating hot plate flow equalizing screen is formed by splicing a plurality of grating hot plates (flat plate type heat pipes), each grating hot plate comprises a wick and a grating, and the grating hot plates are filled with phase change working media (such as sodium, potassium and lithium) and are vacuumized. Sunlight is reflected and gathered to the flow equalizing screen, the phase change working medium absorbs heat and evaporates on the evaporation surface of the grating hot plate, condenses on the condensation surface, and flows back to the liquid absorption core through grating condensation to form stable two-phase flow, so that efficient heat transfer is realized, the surface heat flow density is homogenized, and the surface temperature difference of the flow equalizing screen of the grating hot plate is greatly reduced; and thermal stress is reduced. And heat is transferred to the tube bundle embedded in the graphite through the graphite filling layer and is taken away by a heat transfer medium (water) in the tube bundle. By means of the heat absorber structure, water can be heated to be in an ultra-supercritical state, and operation parameters and power generation efficiency are greatly improved.

The invention relates to the technical field of photovoltaic heat energy, and discloses an efficient vacuum heat pipe heat collection method. The efficient vacuum heat pipe heat collection method involves a heat preservation layer, a union pipe is fixedly connected into the heat preservation layer, a heat pipe is fixedly connected into the union pipe, a fixing ring is fixedly connected to the upper portion of the heat pipe, and a vacuum glass pipe is fixedly connected to the outer side of the bottom of the fixing ring. Through the arrangement of an impeller, an auger and a through hole, when a heat collection energy pipe is illuminated by the sun, a heat transfer medium in the heat pipe is heated, evaporated and vaporized, steam rises and blows to the impeller, the rotating impeller drives the auger to rotate, the heat transfer medium at the bottom is pumped to the upper portion of an upper water barrel, and the heat transfer medium is sprayed out from the through hole under the action of liquid pressure, the heat transfer medium is sprayed to the sunny side of the heat pipe, namely the highest-temperature part of the heat pipe, evaporation and vaporization of the heat transfer medium can be accelerated, the heated surface area of the heat transfer medium can be increased, evaporation and vaporization of the heat transfer medium are further accelerated, and the heating efficiency of a vacuum heat pipe heat collector is greatly improved.

The invention provides an energy storing battery and an energy storing system and relates to the technical field of energy storing devices. The energy storing battery comprises an energy storing battery body, a heat exchanging pipe and an energy storing work medium; the heat exchanging pipe and the energy storing work medium are both arranged in the energy storing battery body; and the heat exchanging pipe is used for being communicated with a connection pipeline of a solar heat collecting plate. The solar heat collecting plate converts absorbed solar radiation energy into heat energy which istransmitted to the heat exchanging pipe, and the heat exchanging pipe then transmits the heat to the energy storing work medium to be stored. Under the condition of a sunny day, the solar heat collecting plate continuously absorbs radiation and converts the radiation into the heat energy, and the energy storing work medium continuously absorbs heat and transmits part of the heat into a heating device; and at night or in a rainy day, the energy storing work medium transmits the stored heat into the heating device so that the effect of making the energy storage battery perform continuous heating can be achieved. We can know that from the above, because the energy storing work medium can store the energy absorbed at daytime, under the condition of night or a rainy day, the energy is releasedto the heating device, and therefore heat can be continuously supplied, and heating is continuously performed.

The invention discloses a metal heat-absorbing plate material of a solar heat collection pipe. The metal heat-absorbing plate material comprises, by weight, 40 parts of polyurethane resin, 20 parts of acrylic resin, 5 parts of silicon dioxide, 1-5 parts of 2-bromo-2-(2-fluorophenol)-1-cyclopropyl ethyl ketone, 2-6 parts of indium tin oxide, 1-5 parts of antimony tin oxide, 3-7 parts of vanadium oxide, 2-6 parts of modified casein, 1-5 parts of ammonium nitrate sodium acetate, 5-9 parts of sodium sulfate decahydrate, 1-5 parts of chlorinated paraffin, 3-7 parts of butyl acetate, 2-6 parts of color paste, 1-5 parts of cyclohexanone, 1-10 parts of ethylene glycol, 0.5-2.5 parts of molybdenum, 0.4-0.8 part of nickel and 5-9 parts of binder. The metal heat-absorbing plate material has good performances like high light spectrum selectivity, high visible light absorptivity and low emitting rate, has high heat efficiency, has the advantages of high light transmitivity, high binding performance, high coating weatherability, high hardness and resistance to high temperature, and high thermoelectric conversion efficiency and high using strength are guaranteed.

The invention provides a solar heat absorber with low surface temperature deviation. The solar heat absorber comprises a heat absorber body, a heat-absorbing material core body is arranged in the heat absorber body, a quartz glass window is arranged on one side of the heat absorber body and is used for projecting solar rays onto the heat-absorbing material core body, and a working medium outlet is formed in the other side of the heat absorber body. A working medium inlet is formed in the side, close to the quartz glass window, of the heat absorber body, and heat conduction fluid enters the heat absorber body from the working medium inlet, and flows through the heat absorption material core body to absorb heat after the fluid passes through adjustable baffles and flow guide plates. By means of the adjustable baffles and the flow guide plates, it is guaranteed that the center area has the higher heat conduction fluid flow, meanwhile, the edge area has the enough heat conduction fluid flow, the uniformity of the surface temperature of the heat absorption material is guaranteed, and the incident radiation bearing capacity and the overall heat absorption efficiency of the heat absorber are improved from the flowing aspect. And the stability and the economical efficiency of the system are effectively improved.

The invention relates to a solar heat collection tube, the heat collection tube includes a glass outer tube, a metal inner tube, a Kovar alloy ring, and a corrugated tube; the metal inner tube is arranged in the glass outer tube and is coaxial with the glass outer tube The two ends of the glass outer tube are sealed with Kovar alloy rings; the bellows are arranged at both ends of the glass outer tube, and are interposed between the metal inner tube and the glass outer tube. Due to the similar thermal expansion coefficients of the glass outer tube and the metal inner tube described in this application, a matching seal can be achieved during high temperature fusion sealing, and the internal stress at the seal is small. After cooling, the glass outer tube and the Kovar alloy No cracking or deformation between the rings. The sealing of metal and glass is realized, and the results of vacuum measurement and thermal shock test show that it has high temperature resistance, high air tightness and high reliability.

An improved modular, removable system of building-integrated solar panel photovoltaics for easy residential and commercial roof installation for generating electrical and thermal energy.

The invention discloses a flat plate integrated solar water heater which comprises a water tank, a support, a flat plate type solar heat collector fixed to the support, a water inlet pipeline and a water outlet pipeline and further comprises a copper heat pipe, a blind pipe is welded to the lower portion of an inner container of the water tank and extends into the inner container, and the copper heat pipe is welded to the lower portion of the inner container. The flat plate type solar heat collector comprises a shell, a glass cover plate, a heat absorbing body and a heat insulating body arranged between the heat absorbing body and the shell, the heat absorbing body comprises an upper collecting pipe, a lower collecting pipe, a row pipe and a heat absorbing plate, a plurality of sleeves which vertically penetrate through the upper collecting pipe and correspond to the blind pipes are arranged on a pipe section of the upper collecting pipe, evaporation sections of the copper heat pipes are inserted into the sleeves, and the heat insulating body is arranged between the heat absorbing body and the heat absorbing plate. The flat plate integrated solar water heater has the advantages that the flat plate integrated solar water heater is compact in structure, resistant to freezing and impact, comfortable in bathing and good in application prospect.

The invention discloses a heat pipe type concentrating photovoltaic cooling heat collection device capable of preventing insufficient contact in the technical field of photovoltaic equipment, the device comprises a photovoltaic battery piece, a heat dissipation copper plate, a heat pipe and a water tank, the top outer wall of the photovoltaic battery piece is fixedly connected with the bottom outer wall of the heat dissipation copper plate, the end, away from the heat dissipation copper plate, of the heat pipe extends into an inner cavity of the water tank and is connected with heat exchange fins, the outer wall of the heat pipe is sleeved with two sets of sealing apparatuses, the ends, close to the heat dissipation copper plate, of the sealing apparatuses are inserted into the inner cavities of opening holes, and the heat dissipation copper plate in the device expand in the heat transfer process, the opening holes are enlarged, so that the pressure in the opening holes is smaller than that in an oil storage tank, cooling liquid in the oil storage tank is pressed into the opening holes, and the gaps between the opening holes and the heat pipe are filled with the cooling liquid, therefore it is guaranteed that the opening holes make full contact with the heat pipe, and gaps are prevented from being generated between the opening holes and the heat pipe to influence the heat transfer efficiency.

The invention discloses a solar water heater with a waste heat utilization device. The solar water heater comprises the waste heat utilization device, a solar heat collector, a cold water tank, a hotwater tank, a support and a heat utilization device. The solar water heater is characterized in that the solar heat collector is placed on the support and connected with the cold water tank and the hot water tank; the cold water tank is placed at the upper end of the support, the hot water tank is arranged at the lower end of the support, and a hot water outlet of the hot water tank is connected with the heat utilization device through a heat preservation pipe; and the solar heat collector comprises a plurality of parallel solar heat collecting pipes which are in a flat pipe shape, and the solar heat collecting pipes are made of high-strength transparent glass.

The invention discloses a solar water heater. The solar water heater comprises a water tank, a collector tube, a condensation plate, a support, a stop valve, an electric pump and a pipeline. The collector tube is arranged on the condensation plate sinuously. The two ends of the collector tube are provided with same pipeline joints correspondingly. The water tank is arranged on the ground below thecollector tube. The electric pump is arranged on the part, between the water tank and the collector tube, of the pipeline. The stop valve is arranged on the part, between the water tank and the collector tube, of the other side of the pipeline. The electric pump, the collector tube, the stop valve and the water tank are sequentially connected into a circulation loop through the pipeline in an endto end mode. The solar water heater is simple in structure, good in heat circulation performance and capable of heating water rapidly, and thus daily hot water supply of users is facilitated.

The invention discloses a treetop-shaped isothermal-structure solar heat absorber. The heat absorber comprises a plurality of coils which are stacked up and down. The coils are circular. The coils aretightly attached layer by layer, and the radiuses of the coils are gradually decreased from bottom to top so as to form a semi-oval-shaped heat absorbing portion. A branch pipe communicating with thecoils is arranged at one ends of the coils. A header communicating with the coils is arranged at the other ends of the coils. A working medium outlet is formed in the lower end of the header. A working medium inlet is formed in the lower end of the branch pipe. According to the isothermal-structure solar heat absorber, the heterogeneity of density distribution of concentrated solar energy flow and the working medium endothermic temperature rising characteristic are comprehensively considered, the bionic principle that trees efficiently utilize sunlight is used for reference, the treetop-shaped isothermal-structure solar heat absorber is provided, the fact that the endothermic working medium flow rates in the coils are gradually increased from bottom to top of the heat absorber is matchedwith the characteristic value that the concentrated solar energy flow density is gradually decreased from top to bottom in the generatrix direction of the heat absorber, it is guaranteed that the heatabsorber coils are uniform in temperature, and the heat efficiency is high; and each coil is relatively independent, the coil high-temperature heat stress is small, operational reliability is high, and the service life is long.

The invention relates to the technical field of photovoltaic heat energy, and discloses an efficient vacuum heat pipe heat collector. The efficient vacuum heat pipe heat collector comprises a heat preservation layer, wherein a union pipe is fixedly connected to the interior of the heat preservation layer, a heat pipe is fixedly connected to the interior of the union pipe, a fixing ring is fixedly connected to the upper portion of the heat pipe, and a vacuum glass pipe is fixedly connected to the outer side of the bottom of the fixing ring. Through the arrangement of an impeller, an auger and a through hole, when a heat collecting energy pipe is irradiated by sunlight, a heat transfer medium in the heat pipe is heated, evaporated and vaporized, steam rises and is blown to the impeller, the rotating impeller drives the auger to rotate, the heat transfer medium at the bottom is pumped to the upper portion of an upper water barrel, the heat transfer medium is sprayed out from the through hole under the action of liquid pressure, the heat transfer medium is sprayed to the sunny slope of the heat pipe, namely the highest-temperature portion of the heat pipe, evaporation and vaporization of the heat transfer medium can be accelerated, the heated surface area of the heat transfer medium can be increased, evaporation and vaporization of the heat transfer medium are further accelerated, and the heating efficiency of the vacuum heat pipe heat collector is greatly improved.

Described is a solar-energy converter device including a shell and a core inside the shell, wherein the shell and the core develop axially along a longitudinal axis and include a volume therebetween. The core includes a thermally conductive matrix in a thermal exchange relationship with the volume, the matrix housing one or more flow conduits for a working fluid, the one or more flow conduits being in thermal exchange relationship with the matrix. Moreover, described is a corresponding solar reactor and a corresponding plant.

The invention discloses a heat exchange tube device in a solar heat collecting tube. The heat exchange tube device comprises a special-shaped tube head and a heat exchange tube body with one end beingclosed; the special-shaped tube head is a corrosion-resistant metal integral part; the special-shaped tube head of the device is provided with a fastening convex ring; a sealed straight neck tube isarranged on the lower portion of the fastening convex ring; a short straight neck tube is arranged on the upper portion of the fastening convex ring, or the lower portion of the sealed straight neck tube is turned into the sealed straight neck tube, and a short straight neck tube is formed; and the heat exchange tube body is connected to the short straight neck tube. Due to the fact that the vertical surfaces of tube heads of the two tubes are welded, the problems that tube wall through welding and welding skip of the stainless steel thin-walled tubes are quite liable to occur during tube head-to-tube head butt-joint welding and tube head-to-tube wall tube-insertion welding when stainless steel thin-walled tubes are used as heat exchange tube devices at present are solved, the phenomenon that an argon shield welding process cannot be normally conducted due to liable through welding caused by quite thin tube walls and welding skip is avoided, and thus the phenomenon that carbon is precipitated at welded positions, and water leakage is liable to occur due to poor corrosion resistance of leakproof heat exchange tubes is also avoided.

The invention discloses an indirect type solar water heating system which comprises a water tank, a support, a flat plate type solar heat collector fixed to the support, a water inlet pipeline and a water outlet pipeline and further comprises a copper heat pipe, a closed inner container is arranged in a shell of the water tank, and a row of upper inserting holes are formed in the upper portion of the inner container. The lower portion of the inner container is provided with a row of lower inserting holes coaxial with the upper inserting holes, the flat plate type solar heat collector comprises a shell, a glass cover plate, a heat absorption body and a heat insulation body arranged between the heat absorption body and the shell, and the heat absorption body comprises an upper collecting pipe, a lower collecting pipe, a calandria and a heat absorption plate. The upper collecting pipe is provided with a plurality of sleeves which vertically penetrate through the upper collecting pipe and correspond to the lower inserting holes, the evaporation sections of the copper heat pipes are inserted into the sleeves, the condensation sections of the copper heat pipes penetrate through the lower inserting holes and the upper inserting holes and extend out of the inner container, and the indirect type solar water heating system is compact in structure, resistant to freezing and impact, comfortable in bathing and good in application prospect.

The invention discloses a plate and tube type phase-change solar water heater. The plate and tube type phase-change solar water heater comprises a heat absorbing plate framework, and further comprisesa water supply pipeline, wherein a heat absorbing plate is arranged on the heat absorbing plate framework; a heat conduction pipeline is arranged on the back surface of the heat absorbing plate; a back plate is further arranged on the heat absorbing plate framework; the heat absorbing plate framework, the heat absorbing plate and the back plate define a sealed space; an inner feed box is arrangedin the space; a thermal-insulation material is filled outside the inner feed box; the heat conduction pipeline is a circulating tube, and passes through the inner feed box; an inlet and an outlet ofthe water supply pipeline are formed in the heat absorbing plate framework, the middle section of the water supply pipeline passes though the inner feed box; the inlet is connected with cold water, and the outlet is connected with domestic water. The inner feed box absorbs solar energy in daytime, and storages energy; while hot water is needed, cold water is heated up by the inner feed box, and hot water is output, so that the water heater is suitable for rainy days after a high temperature; and after the inner feed box is heated up, environmental influences at a relatively low temperature onrainy days outside are small, and heat loss is slow, so that the water supply pipeline still can be heated in cloudy and rainy weather.

The invention discloses an underground rock clear oil drying system capable of collecting heat through double-pipe-groove type solar energy and a using method of the underground rock clear oil drying system. Comprising an organic solvent liquid storage chamber, a circulating pump, a double-pipe groove type solar heat collector, a fan, a condensation chamber, a liquid inlet electric control valve, a material cleaning box, a liquid level detector, a liquid outlet electric control valve, an air inlet electric control valve, a material containing container, a pressure sensor, a temperature probe, a control device, a liquid inlet and a liquid outlet. By fully utilizing a solar photo-thermal technology, on one hand, an organic solvent can be heated and evaporated; secondly, the material cleaning box is heated and pressurized by heating and drying hot air; and thirdly, electric energy is replaced by solar energy, so that utilization of the electric energy is effectively reduced, and solar energy resources are fully utilized.