84results about How to "Improve heat absorption" patented technology

An improved cooling design and method for cooling airfoils within a gas turbine engine is provided which includes a plenum longitudinally located within the leading edge of the airfoils. Within the plenum are positioned a plurality of turbulence promoters to provide enhance heat transfer within the leading edge. Also, the cooling design includes a plurality of inlets to receive cooling air from an internal cavity of the airfoil as well as a plurality of outlets located within a trench on the exterior surface of the leading edge through which the cooling air exits to film cool leading edge.

The invention relates to the polyacrylonitrile and the producing process. The weight percent of the adjusting temperature is showed below: the acrylonitrile 30.0-92.5%; the second monomer 2.5-20.0%; the chain transferring reagent 0.03-0.3%; the solicitation reagent 0.05-0.4%; phase changing material tiny capsule 5.0-50.0%. the producing process adopts the said adjusting fiber material, the solicitation reagent is used to bring the second monomer and the existing possibly third monomer and the water phase deposit of the chain transferring reagent to converge in the phase changing material tiny capsule hanging chaotic liquid, the polymer produced form the action contains the said percentage of the phase changing material tiny capsule, the mixing hybrid of the acrylonitrile sharing material and the phase changing material tiny capsule is gained; the gained equal hybrid is cleaned by the secondary or thrice ion water and dried under the temperature of 45-95 degree, the filature is melted under the temperature of 10-40 degree above the melting point of the acrylonitrile gathering material in the screw extruding engine to produce the said adjusting temperature fiber. The said adjusting temperature fiber has many merits such as the good function of absorbing or releasing the heat energy, the high machine intension and the low cost.

The invention relates to the technical field of solar collectors, in particular to a solar selective absorption coating and a preparation method thereof. The high-performance multilayer composite solar selective absorption coating comprises a far infrared reflecting layer (2), a composite heat absorption layer (4) and an anti-oxidation and anti-reflection layer (5) which are arranged on a matrix (1) in turn. The coating is mainly characterized in that the far infrared reflecting layer (2) is an Al layer which is sputter-deposited on the matrix (1); the composite heat absorption layer (4) is a TiNOX layer which is sputter-deposited on the far infrared reflecting layer (2); and the anti-oxidation and anti-reflection layer (5) is an SiO2 layer which is sputter-deposited on the composite heat absorption layer (4). The coating has the advantages that the solar absorption rate is as high as 90 to 95 percent, and the infrared emitting rate is 6 percent. A Ti+TiC stability layer is arranged between the reflecting layer and the absorption layer, and the stability layer can remarkably improve the binding force of the coating; and simultaneously, the TiC has high temperature resistance and oxidation resistance, thereby the corrosion resistance and high temperature resistance of the coating can be remarkably improved.

The invention discloses a header cold water pipe open communication heat absorption heat exchanger and a manufacturing process of the header cold water pipe open communication heat absorption heat exchanger. The header cold water pipe open communication heat absorption heat exchanger at least comprises two heat supply pipes, wherein two ends of the heat supply heats are respectively welded with a header, at least one cold water channel is arranged inside a heat supply pipe cavity, ports at two ends of the cold water pipe channel are communicated in open cavity mode, and deposited scales in a cold water pipe can be conveniently cleaned by poured acid liquor. The cold water pipe stores water and absorbs heat, effective heat sources can be fully utilized, the heat is quickly absorbed through multiple dividing walls, the heat is transmitted in step mode, a heat absorption area is enlarged, and due to the fact that water is stored in the headers, the length of flow path of cold liquor is increased, the time of heat exchange is prolonged, heat loss is reduced, and heat exchange efficiency is improved. Longitudinal or transverse flexible installation is achieved by reasonable utilization of space, requirements of users can be met, materials are saved, and production cost is reduced. Product quality is stable and reliable, and service life is prolonged. The same kind of metal material is adopted, the weight is light, transportation is convenient, and logistics transportation cost is saved.

A turbine engine component having improved cooling is provided. The turbine engine component includes an airfoil portion having a leading edge, a trailing edge, a pressure side, a suction side, a root, and a tip, and at least one cooling circuit in a wall of the airfoil portion. The at least one cooling circuit has at least one passageway extending between the root and the tip. The at least one passageway has an aspect ratio of no greater than 2:1, and preferably substantially unity.

The invention relates to a heat storing and electricity generating device for wireless transmission of energy by a laser. The heat storing and electricity generating device comprises a laser transmitter, laser photo-thermal converters, Stirling engines, electricity generators, an accumulator and an intelligent controller, wherein each laser photo-thermal converter comprises laser receiving diaphragms, a laser heat absorbing cavity, high-temperature phase change heat storing boxes, heat pipes and temperature sensors; a laser beam generated by the laser transmitter penetrates through the laser receiving diaphragms to enter the laser heat absorbing cavity, and heat is transferred to the high-temperature phase change heat storing boxes by the laser heat absorbing cavity; the heat pipe is connected with the hot ends of the Stirling engines, and the Stirling engines are connected with the electricity generators. The heat storing and electricity generating device disclosed by the invention can be used for a space solar power station and an electrical power system for transmitting energy to the ground in a wireless manner, the heat storing and electricity generating device can be applied to wireless transmission of air-to-ground, air-to-air and ground energy, wireless energy transmission between satellites, wireless energy transmission between space crafts, space shuttles and airships and wireless energy transmission between unmanned aircrafts, unmanned vehicles, unmanned ships and warships and robots.

The invention relates to a flat-plate paraboloidal solar light-condensing and heat-collecting device, and belongs to the technical field of solar heat utilization. The flat-plate paraboloidal solar light-condensing and heat-collecting device is particularly suitable for the integration of solar energy and buildings, and provides a multifunctional technology-integration high-efficiency heat-condensing device with more application value for the 'South Wall Plan' and the 'Roof Plan'. The flat-plate paraboloidal solar light-condensing and heat-collecting device comprises a light-transmitting and sealing component and a heat-collecting and light-condensing component two big parts, wherein the light-transmitting and sealing component consists of a box body, a bottom plate, a T-shaped fixed strip, a light-transmitting cover plate, a thermal-insulation and heat-preservation coating, a sealant, a vacuumizing head, a working medium inlet, a working medium outlet, a mounting block and an adsorbent storage strip; the light-transmitting cover plate is combined with the T-shaped fixed strip by using the sealant; the combined light-transmitting cover plate and the T-shaped strip are downwards embedded into a groove on the box body; and the heat-collecting and light-condensing component comprises a working medium passage pipe, a heat-absorbing plate, a heat sink strip, a heat-absorbing coating, a paraboloidal light-condensing reflection plate, a light-condensing plate reinforcing rib, a passage pipe joint, a U-shaped connecting bend, a G-spot groove, a thermal-insulation and heat-preservation coating, a fixing plate and a shockproof block.

A turbine engine component has an airfoil portion with a pressure side and a suction side. The turbine engine component further has a first cooling microcircuit for cooling the suction side of the airfoil portion. The first cooling microcircuit is embedded within a first wall forming the suction side. The first cooling microcircuit has a circuit for allowing a cooling fluid in the first cooling microcircuit to exit at a tip of the airfoil portion. The turbine engine component also has a second cooling microcircuit embedded within a second wall forming the pressure side of the airfoil portion.

The invention relates to a disc-type solar heat storage power generating device which comprises an automatic folding light concentrating disc, a light-beam-concentrating light-heat converter, an automatic light concentrating device, a transmission mechanism, an intelligent controller, a Stirling engine or steam turbine, a power generator and a storage battery, wherein the automatic folding light concentrating disc is connected with the light-beam-concentrating light-heat converter; the light-beam-concentrating light-heat converter is connected with the Stirling engine or steam turbine; the Stirling engine or steam turbine is connected with the power generator; the power generator is connected with the storage battery; the transmission mechanism is connected with the automatic folding light concentrating disc; and the intelligent controller is connected with the automatic folding light concentrating disc, the transmission mechanism, the light-beam-concentrating light-heat converter, the automatic light concentrating device, the Stirling engine or steam turbine, the power generator and the storage battery. The overall performance of the disc-type solar heat storage power generating device provided by the invention is optimized and improved, and the disc-type solar heat storage power generating device can be widely utilized in the military, civil and other fields.

A turbine engine component has an airfoil portion with a pressure side and a suction side. The turbine engine component further has a first cooling microcircuit for cooling the suction side of the airfoil portion. The first cooling microcircuit is embedded within a first wall forming the suction side. The first cooling microcircuit has a circuit for allowing a cooling fluid in the first cooling microcircuit to exit at a tip of the airfoil portion. The turbine engine component also has a second cooling microcircuit embedded within a second wall forming the pressure side of the airfoil portion.

The invention relates to electromechanical equipment with a good heat dissipation effect. The equipment comprises a fixed box, a heat dissipation mechanism and an alarm mechanism; the heat dissipationmechanism comprises a water tank, a heat dissipation assembly and a stirring assembly, and the alarm mechanism comprises a heat conduction rod, a heat conduction ball, a piston, a metal block, an induction switch, a spring and an abutting rod. According to the electromechanical equipment with the good heat dissipation effect, the heat dissipation of the interior of the fixed box is achieved through the heat dissipation mechanism, primary heat dissipation of the main body is achieved through flowing of condensate, the impeller is driven to rotate through flowing of the condensate, the impellerdrives the fan to rotate, and therefore, air blowing of the heat dissipation pipe is achieved, and the flow speed of air in the fixed box is increased, and then the secondary heat dissipation of themain body is achieved; the condensate in the water tank is stirred through the stirring assembly, so the heat absorption capacity of the condensate can be improved after stirring, and the heat dissipation effect is improved; the air in the fixed box is detected through the alarm mechanism, so the damage, caused by the too high temperature, to elements in the main body is prevented, and the use practicability is improved.

A heat exchange device includes a heat exchanger disposed in connection with at least one of a heat-dissipation electrode and a heat-absorption electrode, between which a plurality of thermoelectric elements is connected in series, via an insulating resin layer, which is composed of an epoxy resin or polyimide resin doped with fillers having high thermal conductivity, without intervention of a substrate. The heat exchanger corresponds to a plurality of corrugated fins which are constituted of a plurality of joint regions joining with one of the heat-dissipation electrode and heat-absorption electrode and a plurality of non-joint regions projecting externally from a plurality of gaps formed between the joint regions adjacently aligned together, wherein the joint regions and non-joint regions are alternately aligned. Thus, it is possible to achieve high reliability by reducing thermal resistance and thermal stress while increasing the maximum heat absorption coefficient (Qmax).

The invention discloses a trough-type vacuum tube heat collecting device of a condenser heat tube, and the main body of the device comprises a glass vacuum tube (5), a copper heat tube (2) with a curved surface fin (3). The copper heat tube (2) and the curved surface fin (3) are welded into a whole; one side of the fin is fitted on the wall face inside a full-glass vacuum tube more tightly. The existence of the fin increases the area to receive solar radiation, and simultaneously strengthens heat absorbing capability of the heat tube from the vacuum tube. The condensation end of the heat tubeexposes out of the vacuum tube, extends into working fluid of heat absorption and releases heat to the working fluid. A selective coating with high absorptivity and low emissivity is coated on the heat absorbing surface of inner glass of the full-glass vacuum tube; the two tube ends are closed; and one end of the tube is embedded into a conjugant (1) prepared by heat insulating materials and is fixed. The heat tube is also arranged in the vacuum tube after passing through the conjugant. The sealing part of the heat tube and the vacuum tube does not need to directly contact; the connection difficulty caused by the difference of coefficient of thermal expansion of metal and glass is avoided; the manufacturing process is relatively simple; and the cost is lowered.

The invention discloses a lithium ion battery pack capable of realizing uniform heat dissipation. The lithium ion battery pack comprises a shell and a plurality of battery cells, a heat exchanger is arranged in the lithium ion battery pack, electric insulation heat conduction bags holding cooling liquid are arranged between adjacent battery cells, an air inlet, an air outlet, a cooling liquid inlet and a cooling liquid outlet are formed in the heat exchanger, the air inlet is connected with an air pump that can pump air, the cooling liquid outlet is connected with a liquid pump, an output end of the liquid pump conveys cooling liquid into the electric insulation heat conduction bags through liquid conveying pipelines, outlets are formed in the electric insulation heat conduction bags, and the outlets are connected with the cooling liquid inlet through the liquid conveying pipelines to form a cooling liquid loop. As the cooling liquid is not in direct contact with the battery cells in the whole process, the defects of cooling liquid corrosion and short circuit are avoided, the lithium ion battery pack disclosed by the invention adopts a uniform heat dissipation mode, thereby being unlikely to generate liquid leakage, the installation and subsequent maintenance are convenient, and compared with the existing liquid cooling manner, the cost is greatly reduced, and the uniform heat dissipation effect is better.

The invention discloses a method for complexly treating 5CrMnMo hot work die steel. The method comprises the following steps of (1) pretreating: cleaning a milled workpiece through an alcohol ether solvent, then spraying an accelerant at an outer surface of the cleaned workpiece, and obtaining a pretreated workpiece; (2) warming: placing the pretreated workpiece into a drying oven, enabling the temperature of the pretreated workpiece to reach 65 to 78 DEG C, and obtaining a warmed workpiece; and (3) treating with an electronic beam. According to the process adopted by the invention, not only can the hardness of the 5CrMnMo hot work die steel be improved, but also the surface roughness of the 5CrMnMo hot work die steel is reduced, the occurrence of a pit phenomenon of a volcanic vent is reduced, and the method has wide market promotion value.

The invention relates to a transformer and a transformer winding thereof. A cooling assembly is respectively provided with a shunt oil passage and a confluence oil passage at two sides of a coil, wherein one end of the shunt oil passage is provided with an oil inlet, and one end of the confluence oil passage far away from the oil inlet is provided with an oil outlet. A plurality of oil regions inthe coil are connected in parallel through the shunt oil ducts and the confluence oil ducts. Cooling oil enters the flow dividing oil channel from the oil inlet and enters the multiple oil areas fromthe flow dividing oil channel, and the cooling oil flowing through the oil areas is gathered in the flow gathering oil channel and finally flows out from the oil outlet. Due to the fact that the oil areas are connected in parallel, cooling oil entering each oil area cannot flow through the other oil areas. That is to say, the temperature of the cooling oil entering the oil areas is low, and the temperature of the cooling oil entering each oil area is approximately the same. Therefore, the effect of absorbing heat by the cooling oil is better, and the heat dissipation effect difference caused by the temperature difference of the cooling oil in different oil areas can be avoided. Therefore, the transformer and the transformer winding thereof are good in cooling effect.

The invention relates to a radiation refrigeration film and a product provided with the same. The radiation refrigeration film comprises a carrier layer, a reflection layer and an emission layer which are stacked. The emission layer is located on the light incident side of the radiation refrigeration film and is made of a polymer containing a C-F bond. The carrier layer is made of a polymer containing a C-C bond and / or a C-O bond. After the carrier layer is placed at 120 DEG C for 30 minutes, the thermal shrinkage rate of the carrier layer in the transverse direction is smaller than or equal to 2%, the thermal shrinkage rate of the carrier layer in the longitudinal direction is smaller than or equal to 3%, the thickness of the radiation refrigeration film ranges from 50 micrometres to 170 micrometres, and the thickness of the emission layer accounts for 20%-90% of the total thickness. According to the radiation refrigeration film provided by the invention, by optimizing the material, the structure and the thickness of the radiation refrigeration film, the radiation refrigeration film has excellent atmospheric window emissivity under the condition that radiation refrigeration particles do not need to be added, so that adverse effects of the addition of the radiation refrigeration particles on the mechanical properties and the weather resistance of the radiation refrigeration film are avoided, and therefore, the radiation refrigeration film has more excellent mechanical properties and weather resistance.

The invention discloses a flat-plate-type heat collecting system and method, and relates to the technical filed of solar heat utilization. The flat-plate-type heat collecting system comprises flat-plate-type heat collectors, a first valve, a first fan, a second valve, second fans, a heat storage device and a heat output device; the flat-plate-type heat collectors are mutually connected in series and / or in parallel, a total inlet after series and / or parallel connection is connected with an outlet of the heat storage device through a pipeline, and a total outlet is connected with an inlet of theheat storage device sequentially through the first valve and the first fan by a pipeline; and an inlet of the heat output device is connected with the outlet of the heat storage device through a pipeline, an outlet of the heat output device is connected with the heat storage device through the second valve by a pipeline, and the second fans are connected to the two ends of the second valve in parallel. The flat-plate-type heat collecting system and method have the advantages of high photothermal conversion efficiency and high heat storage ability.

A method by which a steel component can be produced, which is provided with a metallic coating which adheres well and which provides protection against corrosion, from a flat steel product produced from a steel material containing 0.3-3 wt.-% manganese and having a yield point of 150-1100 MPa and a tensile strength of 300-1200 MPa coated with an anti-corrosion coating which comprises a coating of ZnNi alloy which is electrolytically deposited on the flat steel product, which coating is composed in a single phase of γ-ZnNi phase and which contains, as well as zinc and unavoidable impurities, 7-15 wt.-% nickel.

The invention discloses a gas rotating energy conservation pot, wherein the external surface of the pot body is provided with helical radiation shape metallic ribs with pot bottom pole as the center, helical smoke conduits are formed between the metallic ribs. The pot has the advantages of longer time of contact in heat exchange, larger contact area, higher combustion gas heat utilizing rate, simpler structure, easy manufacture, and low cost.

The invention discloses an energy-saving electric heating cooker which adopts a nonmetal (purple sand, ceramic, ore, glass and the like) inner container. Infrared radiation material layers which are matched with each other are respectively arranged on the inner surface of a barrel / disc-shaped large-area heating device and on the outer surface of the inner container. The electric heating cooker increases the effective radiation and absorption area of infrared rays by the structural design of the surface and a covering layer, which not only greatly improves the heating function of the infrared radiation manner, but also can give attention to and exert the heating function of the conduction and convection manner. Therefore, the following beneficial effects are achieved: the heat efficiency is greatly increased, the heating speed is increased, the temperature of a shell is low, energy is saved, the heating area of the inner container is increased, the heating is uniform, the bursting is not easy, and the using is safe.

The invention provides a water-cooled radiator and a heat-dissipating system and belongs to the technical field of radiators. The water-cooled radiator includes a heat-dissipating plate. A water inletand a water outlet are disposed on the opposite side ends of the heat-dissipating plate respectively. The heat-dissipating plate is provided with a fluid channel. The fluid channel extends from the water inlet to the water outlet, and is provided therein with multiple stoppers distributed at intervals. The axial direction of the stoppers and the axial direction of the heat-dissipating plate are angled. The heat-dissipating system has the water-cooled radiator, is simple in structure, and easy to use, and has a good heat dissipation effect.

The invention discloses a black body anti-coking ceramic recognition coating layer and a preparation method thereof. The ceramic recognition coating layer is composed of a base layer and a surface layer, the base layer is white, and the surface layer is green; a coating for forming the base layer comprises zirconium dioxide, aluminum oxide, magnesium oxide, lithium fluosilicate, manganese powder,cerium oxide, lanthanum oxide, sodium silicate, potassium silicate, magnesium hexametaphosphate, aluminum hexametaphosphate, bentonite, clay, cured resin, modified inorganic powder and a reactive diluent; a coating for forming the surface layer comprises a ZS high-temperature-resistant far infrared radiation coating, aluminum silicate, a high-temperature binder, bentonite, clay, brown fused alumina, cordierite, a coloring agent and a dispersing agent; according to the high-temperature-resistant far infrared radiation coating, a strong radiation material contained in the high-temperature-resistant far infrared radiation coating radiates far infrared waves with extremely strong penetrating power at high temperature, so that molecules of a heated object absorb the waves to generate energy level transition, absorbed energy is uniformly heated, the heating time is shortened, and energy is fully saved.

The invention discloses a spiral plate-type heat tube flame arrester. The spiral plate-type heat tube flame arrester comprises a fireproof shell and a heat tube, wherein the fireproof shell is in a cylindrical shape, the bottom of the fireproof shell is provided with a base, and the top of the fireproof shell is provided with a cover body; and a spiral plate is arranged in the fireproof shell, thespiral plate is formed by connecting and winding a first metal plate and a second metal plate, a metal box body is formed on a welded part of the first metal plate and the second metal plate, the wound part of the first metal plate is wound outwardly surrounding the metal box body, the wound part of the second metal plate is encircled around the first metal plate by adopting the metal box body asthe center, and a first spiral runner and a second spiral runner are formed between the wound part of the first metal plate and the wound part of the second metal plate. The spiral plate is arrangedin the fireproof shell to form the spiral runner, so that the fireproof space is increased, the wall effect produced by the structural change of a multilayer channel is sufficiently used for sharply reducing the free radicals of the combustion, and the explosion is effectively prevented.

The invention relates to a thread sleeve type mounting bracket for a balcony wall-mounted type solar water heater heat collection plate as well as a mounting method and application thereof. The mounting bracket comprises a supporting rod, a driving rod and a connection rod, wherein the tail end of the supporting rod is fixedly arranged on the outer side of a balcony wall; the front end of the supporting rod is hinged with a heat collection plate; the front end of the driving rod is hinged with the tail end of the connection rod; the front end of the connection rod is hinged with the heat collection plate. The mounting bracket can be used for adjusting the inclined angle of the heat collection plate according to the changes of different latitudes and sunlight perpendicular incidence angles of different seasons, so that the heat collection plate can receive solar heat to the greatest extent, and the heat absorption effect of the heat collection plate is greatly enhanced. Compared with a traditional fixed bracket, the mounting bracket has a more scientific and reasonable design, is convenient to mount and use and is low in production and manufacturing cost; electric driving control also can be realized, the function is obvious and the effect is remarkable; the thread sleeve type mounting bracket has good economic benefits and social benefits and is worthy of being popularized and applied.

The invention relates to a method for rapidly and efficiently making a traditional-Chinese-medicine good-health-keeping beverage through a wall breaking machine. The method at least includes the following steps of (a) wall breaking soaking, wherein traditional Chinese medicinal materials are smashed and mixed with water to form mixed liquid, and the line speed of the tail end of a smashing cutteris 30 m / s to 100 m / s; (b) two-stage temperature increasing, wherein the temperature is increased to T1 according to heating power of P1, temperature is increased till boiling is carried out accordingto heating power of P2, the P1 is larger than the P2, and total time of the two temperature increasing stages is larger than 3 minutes; (c) decocting, wherein the mixture is heated according to heating power of P3, and the temperature is kept for certain time. Compared with the prior art, functional components of traditional-Chinese-medicine materials can be effectively and rapidly separated out,and it is guaranteed that the pot overflowing risk does not exist.

The invention relates to the technical field of argon production equipment, and discloses filling, discharging and vacuumizing equipment for argon production. The filling, discharging and vacuumizingequipment for argon production comprises a second shell and a vacuum pump, wherein the vacuum pump is fixedly connected with the second shell; a degradation vacuumizing mechanism is arranged in the second shell; an inflation promoting mechanism and a switching mechanism are arranged outside the second shell; gas in a closed space formed by a first right vertical plate and the second shell is exhausted out of the second shell through a vacuum pump, so that a vacuum environment is formed in the closed space formed by the first right vertical plate and the second shell; gas between the two firstvertical plates pushes a first baffle to turn over so as to drive a first sliding block to slide in a first sliding groove and stretch a first spring, so that gas between the two first vertical platesenters the closed space formed by the first vertical plate on the right side and the second shell; and an argon bottle connected with an argon outlet pipe is separated through the two first verticalplates, so that the situation that the argon bottle suddenly communicates with the vacuum pump, and consequently the load of the vacuum pump is instantly increased is avoided, the vacuum pump is better protected, and the stability of the device is improved.

The invention provides a temperature adjustment functional fabric and a manufacturing method thereof. The fabric comprises, by weight, 50-70 parts of acrylonitrile, 5-10 parts of 2-vinylpyddine, 5-10parts of acrylic amide and the like. A polyacrylonitrile temperature adjustment melt spinning process can be directly used for manufacturing temperature adjustment fibers. By the design, adhesion or damage in a microcapsule blending granulation process can be effectively prevented. The temperature adjustment fibers have good heat energy absorption, storage and release functions, and further have good mechanical strength, stable functions and low cost. In the process, organic or inorganic solvents are omitted, the problem of environmental pollution caused by solvent use in solution spinning canbe avoided, the problem of phase change material microcapsule fracture caused in the melt extrusion granulation process of phase change material microcapsules and polymers can be prevented, the technological process of temperature adjustment fiber preparation is shortened, energy consumption is decreased, and production expenses are reduced.

The invention discloses a double-pass bamboo-shaped solar collector tube. The tube comprises a plug, outer tubes and inner tubes, wherein the inner tubes respectively sleeve in the outer tubes; the plug is connected between the outer tubes; a double-pass bamboo joint is connected between the inner tubes; an angle measuring instrument is arranged on the surface of the plug; and heat conducting media are arranged in the inner tubes and connected with the bottoms of the inner tubes through rotating shafts. The solar collector tube disclosed by the invention has the beneficial effects that water in two solar collector pipes can be communicated through the double-pass bamboo joint to guarantee the heating uniformity of a solar water heater; angles of the heat conducting media in the solar collector tubes can be adjusted to ensure that heat of the sun can be absorbed to the maximum extent by the solar collector tubes; the firmness between the solar collector tubes can be increased to avoid the deformation of the solar collector tubes when used for a long time and guarantee the using effect of the solar collector tubes; and the heat absorption effect of the solar collector tubes can be increased.