188results about How to "Fast heat transfer" patented technology

The invention discloses a biological bacterial fertilizer preparation pelletizer, and relates to the technical field of biological bacterial fertilizer pelletizers, the biological bacterial fertilizer preparation pelletizer comprises a machine body, one side of the machine body is provided with heat dissipation holes at equal intervals, the biological bacterial fertilizer preparation pelletizer further comprises a cleaning protection mechanism and an auxiliary heat dissipation mechanism, the auxiliary heat dissipation mechanism is driven by the cleaning protection mechanism, and the cleaning protection mechanism is used for cleaning the heat dissipation holes. The auxiliary heat dissipation mechanism is used for assisting heat dissipation of the machine body, through insertion of cleaning balls and air blown out of air holes of the cleaning balls, impurities on the outer sides of heat dissipation hole bodies can be effectively cleaned, meanwhile, impurities in the heat dissipation hole bodies and impurities entering the heat dissipation hole bodies under the action of external force can be cleaned, and the phenomenon that when a worker wipes the machine body, the heat dissipation hole bodies are damaged is avoided. The problem that dust particles are extruded by an external wiping tool, and generated extrusion force pushes part of impurities to penetrate through the heat dissipation hole bodies to enter the machine body is solved, the cleaning effect of the heat dissipation hole bodies is improved, the heat dissipation stability of the heat dissipation hole bodies is guaranteed, and then the stability of biological bacterial fertilizer granulation is improved.

The invention discloses leather tension detection equipment and a leather tension detection method, and belongs to the field of leather tension detection. Leather tension detection equipment comprises a detection box and a temperature controller, the temperature controller is installed at the top of the detection box, the leather tension detection equipment further comprises two sets of guide sliding rails which are symmetrically arranged, the guide sliding rails are fixed to the top and the bottom of an inner cavity of the detection box respectively, upper sliding plates are slidably connected to the two sides of an inner cavity of the upper guide sliding rail, and lower sliding plates are slidably connected to the two sides of an inner cavity of the lower guide sliding rail. Lower sliding plates are slidably connected to the two sides of an inner cavity of the lower guiding sliding rail, and telescopic sliding plates are fixedly connected to the tops of the lower sliding plates. Air pressure is applied into the two-way telescopic rod, so that leather is pulled in a two-way mode, and the real-time tension of the leather can be obtained in cooperation with reading of the air pressure meter; in addition, friction is applied to the leather in cooperation with translation and autorotation of the friction roller, so that the dynamic tension of the leather is obtained, the tension performance of the leather can be better mastered, and the representativeness of the detection effect is effectively improved.

The utility model discloses a test tube for sampling, which relates to the technical field of sampling, and comprises a test tube main body and a cover cap, the outer surface of the test tube main body is provided with an anti-slip sleeve, the anti-slip sleeve is internally provided with an anti-falling component, the anti-falling component comprises a support rod, the support rod is positioned in a groove of the anti-slip sleeve, and the cover cap is arranged on the support rod. The top of the support is provided with a take-up and pay-off barrel, one end of the take-up and pay-off barrel is provided with a hexagonal rod, a rope is installed in the take-up and pay-off barrel in a surrounding mode, one end of the take-up and pay-off barrel is provided with a movable groove, a lead screw is installed in the movable groove, and one end of the lead screw is provided with a driving motor. The anti-falling assembly is installed, the cap and the anti-skid sleeve are connected and fixed through the rope in the winding and unwinding barrel inside the anti-skid sleeve, and the length of the winding and unwinding rope of the winding and unwinding barrel is conveniently controlled while the movable protruding block is driven by the lead screw to move; and the rope is convenient to take and can prevent the cap from being lost and being stained with dust and bacteria when being placed on the ground.

The utility model discloses a brazing type high-pressure water heating PTC heater assembly, and relates to the technical field of water heating PTC heaters. Comprising a shell, a fixing cover is arranged over the shell, a water heating heater body is arranged in the shell and comprises a first water tank, a second water tank is arranged over the first water tank, a third water tank is arranged under the first water tank, and a first connecting pipe is fixedly arranged at the top end of the first water tank; the top end of the first connecting pipe is fixedly connected with the second water tank, the bottom end of the first water tank is fixedly provided with a second connecting pipe, the bottom end of the second connecting pipe is fixedly connected with the third water tank, a first heating bag is arranged between the first water tank and the second water tank, and a second heating bag is arranged between the first water tank and the third water tank. According to the vehicle-mounted water heater, the effect of rapidly heating the whole vehicle can be achieved, and when the vehicle-mounted water heater is used, water is divided into three layers of flow channels from one layer of flow channels, so that the resistance of the water flowing channels is effectively reduced, the heat exchange speed of the water is higher, and the heating speed of the water is increased.

The invention belongs to the technical field of pre-hardened die steel, and particularly relates to pre-hardened die steel with a high heat conductivity coefficient and a preparation technology of the pre-hardened die steel. By optimizing the alloy component design and adopting the high-purity triple smelting process, the heat conduction performance is remarkably improved, the heat conductivity coefficient reaches 54 W / m * K, the mold steel with higher heat conductivity compared with traditional mold steel pre-hardened to 38-42 HRC is obtained, and meanwhile the excellent hardness and wear resistance are kept. The die steel not only has higher heat transfer speed and obviously shortens the injection molding cooling time, but also shows extremely high stability and durability in the use process, prolongs the service life of the die and reduces the production cost of enterprises. In addition, due to the excellent physical property, the mold can be suitable for a more complex and finer injection molding process.

The invention belongs to the technical field of gas-liquid separation, and particularly relates to a small-size tubular plate type water vapor condenser which comprises a cylindrical heat exchange cylinder, a plurality of heat exchange pieces of the same structure are further arranged in the heat exchange cylinder, and the heat exchange pieces are detachably installed in the heat exchange cylinder; each heat exchange sheet is provided with an inclined surface facing materials, a heat exchange surface in close contact with the heat exchange cylinder, an arc-shaped structure for forming a vortex and a through hole structure for increasing gas flux, the number and angle of the heat exchange sheets and distribution of through holes in the heat exchange sheets can be adjusted according to specific water vapor condensation working conditions, so that water vapor is condensed efficiently, and the heat exchange efficiency is improved. And the volume is reduced, the application range of the condenser is widened, and the water vapor collection efficiency of the condenser per unit volume is improved.

The invention relates to the technical field of new energy automobiles, in particular to a battery box and an automobile battery temperature control system. The battery box body comprises a box body, an upper-layer heating film, a lower-layer heating film, a plurality of upper-layer battery cells and a plurality of lower-layer battery cells; the box body has a thickness direction and comprises a partition plate, an upper-layer groove body and a lower-layer groove body, wherein the upper-layer groove body and the lower-layer groove body are separated by the partition plate and distributed in the thickness direction. The plurality of upper-layer battery cells are arranged in the upper-layer groove body, the plurality of lower-layer battery cells are arranged in the lower-layer groove body, and the thickness direction of the upper-layer battery cells and the thickness direction of the lower-layer battery cells are both parallel to the thickness direction of the box body; the upper-layer heating film is attached to the upper surfaces of the plurality of upper-layer battery cells, and the lower-layer heating film is attached to the lower surfaces of the plurality of lower-layer battery cells. According to the battery box body and the automobile battery temperature control system, the problem that an existing battery pack rapid heating mode is low in heating efficiency is solved.

The invention relates to the technical field of light flexible drivers and intelligent macromolecules, in particular to a preparation method of a polymer driver for improving bidirectional shape memory driving performance, which comprises the following steps: 1) preparing a polyethylene vinyl acetate-sodium chloride particle-xylene-benzoyl peroxide mixed solution by a solution polymerization method; 2) preparing a polyethylene vinyl acetate-sodium chloride particle-benzoyl peroxide composite material; (3) peroxide thermally initiates a cross-linking reaction between free radicals and a macromolecular main chain; and 4) preparing the bidirectional shape memory porous polymer soft body driver with different driving devices.The bidirectional shape memory porous polymer soft body driver has the advantages that the self-driven reciprocating deformation, large driving deformation and complex shape change of the polymer are realized on the basis of semi-crystalline polymer thermal coupling through the change of a cross-linked network interspersed in a crystal interval, and the bidirectional reversible driving performance is further improved.

The utility model discloses a coal gangue roasting activation device, which relates to the technical field of mineral processing and mainly comprises a roasting main furnace, a drying mixer, a staying tank and a cyclone cooler, an outlet of the roasting main furnace is communicated with the drying mixer through a secondary high-temperature separator, and an outlet of the drying mixer is communicated with a primary preheating separator. A flue gas outlet of the first-stage preheating separator is communicated with a flue gas treatment system, a discharge port of the first-stage preheating separator is communicated with a roasting main furnace, and the roasting main furnace is used for roasting a coal gangue raw material so as to perform kaolinite crystallization conversion; the second-stage high-temperature separator is communicated with the staying tank, so that the roasted sand enters the staying tank to complete crystal form transformation; a discharge port of the staying groove is communicated with an air inlet of the cyclone cooler, and an air outlet of the cyclone cooler is communicated with the roasting main furnace. According to the utility model, the kaolinite crystal phase can be decomposed into semi-crystalline or amorphous, the chemical reaction activity of the kaolinite crystal phase is improved, and the energy utilization rate can also be improved.

The utility model relates to the field of cooking equipment, in particular to a heat dissipation door body. A heat dissipation door body is applied to cooking equipment and comprises a door body provided with a cavity, the door body is at least provided with an air inlet and an air outlet, and the air inlet and the air outlet are both communicated with the cavity; the partition assembly is mounted in the cavity and can divide the cavity into a first cavity and a second cavity; the screen assembly is installed in the first cavity and connected with the cavity wall forming the first cavity, and information can be displayed to the outside through the door body. The air cooling assembly is installed in the first cavity and connected with the cavity wall forming the first cavity, and the heat exchange speed of the first cavity and the external environment can be increased. The display device has the advantages that the curtain assembly and the door body are integrated, information can be displayed to the outside through the door body, the cost of additionally arranging parts such as a screen assembly support is saved, the integration of a whole machine system is improved, the air cooling assembly can enable the door body to dissipate heat actively, and the heat dissipation capacity of the door body is improved.

The invention discloses a triple-effect evaporation treatment device and method for salt-containing sewage, and belongs to the technical field of sewage chemical treatment. The invention relates to a triple-effect evaporation treatment device for salt-containing sewage. The triple-effect evaporation treatment device comprises an external heat source, and a first-effect reaction unit, a second-effect reaction unit and a triple-effect reaction unit which are connected in sequence, the first-effect reaction unit is provided with a first-effect evaporation chamber, the second-effect reaction unit is provided with a second-effect evaporation chamber, the third-effect reaction unit is provided with a third-effect evaporation chamber, and the first-effect evaporation chamber is connected with an external heat source to evaporate sewage; the first-effect reaction unit is one or two of the first-effect reaction unit, the second-effect reaction unit and the third-effect reaction unit, the heater is arranged in an evaporation chamber of the first-effect reaction unit, the heater is approximately annular, and an area enclosed by the annular heater is a first area; the annular heater and the inner wall of the evaporation chamber form a second area; and the first region is communicated with the second region. Self-circulation of sewage in the evaporation chamber is realized, the evaporation rate and the heat transfer rate are high, the energy consumption is low, the equipment manufacturing is simple, and the like.

The utility model discloses a nozzle structure for a circular heater, which relates to the field of nozzles and comprises a nozzle body, the outer wall of the nozzle body is provided with a double-end circular heater and a thermocouple, and the left side and the right side of the outer wall of the nozzle body are symmetrically provided with shells. Mounting blocks are symmetrically and fixedly connected to the front faces and the back faces of the tops and the bottoms of the two shells, connecting rods are symmetrically and movably connected to the front faces and the back faces of the tops and the bottoms of the opposite sides of the two shells, and springs are wound around the outer walls of the connecting rods. According to the nozzle structure for the circular heater, the double-end circular heater and the nozzle body of the thermocouple are installed on the outer wall of the nozzle body, the heat utilization rate is high, the heat transfer speed is more direct and faster, the space of a mold can be saved, and when the mold is manufactured, if the space of the mold is limited, the mold can be conveniently replaced. And the nozzle body is arranged, so that a common nozzle structure can be replaced.

The utility model provides an efficient heat transfer water chilling unit which comprises a shell, a ventilation pipe is installed on the side face of the shell, a heat insulation layer is installed in the shell, an inner tank is welded in the shell, a heat preservation layer wraps the surface of the inner tank, a copper pipe is installed in the inner tank, and a heat conduction layer is installed in the copper pipe. And a first connecting plate is mounted at one end of the ventilation pipe. A second connecting plate is fixedly mounted on the surface of a first connecting plate through screws and mounting holes, so that a filter screen is mounted in the ventilation pipe, air enters the inner tank after being filtered by the filter screen, and the filter screen is convenient to mount and dismount and convenient to clean and replace through the arrangement of the screws and the mounting holes; refrigerant enters the shell through the refrigerant inlet and is matched with the heat insulation layer and the heat preservation layer, so that the temperature in the inner tank is kept low, heat preservation is conducted on the inner tank, heat conduction of hot air is faster by arranging the copper pipe, and rapid heat transfer is completed.

The carboxymethyl cellulose starch ether for cleaning the photovoltaic panel is prepared by the following steps: 1) taking refined cellulose and powder starch, and uniformly mixing to obtain a mixture; 2) adding the mixture into an alcohol-water solution containing sodium hydroxide and ethylurea, and reacting under a stirring condition to obtain an alkalized mixture; and 3) adding an alcoholic solution containing chloroacetic acid, 3-oxocyclobutane-1, 1-dicarboxylic acid and 2-chloroethyl urea into the alkalized mixture, and carrying out a reaction under a stirring condition to obtain the target product, with the alcoholic solution containing chloroacetic acid, 3-oxocyclobutane-1, 1-dicarboxylic acid and 2-chloroethyl urea. Through synergic cooperation of cellulose and starch, the production cost can be reduced, the anti-dirt capability can be effectively improved, and the application range can be expanded.

The utility model provides a kind of red light point position indicator, it is related to laser position indication technical field, indicator includes lens fixed base, red light fixed base, lens, red light emitter and heat dissipation groove, by being set with multiple adjusting holes on red light fixed base, adjusting hole is matched and is installed adjusting jack screw, by controlling the displacement elongation of different jack screw is different, to realize the slight adjustment of red light emitter installation position, the flexibility of use process is improved, heat on lens will be transferred to lens fixed base, by being set with heat dissipation groove on lens fixed base, increase the contact area of lens fixed base and external air, improve heat exchange speed, even if indicator in long-term use process can also heat in time, guarantee the service life of indicator, solve the technical problem that there is emitter position difficult to adjust and lack of heat dissipation design in existing indicator.

The present invention provides a gas-liquid phase vinyl chloride production device and process, which belongs to the technical field of vinyl chloride production, including a reaction tower, a liquid distributor, a gas distributor, a demister, a liquid catalyst circulation mechanism, and a condenser; the reaction tower is provided with a gas-liquid reaction zone, a liquid catalyst inlet, and a liquid catalyst outlet, a mixed gas inlet at the bottom, and a reaction gas outlet at the top; the liquid distributor is arranged in the reaction tower; the gas distributor is arranged in the reaction tower; the demister is used to recover the liquid catalyst droplets entrained in the reaction gas; the liquid catalyst circulation mechanism is arranged outside the reaction tower; and the condenser is arranged outside the reaction tower, which is used to collect the reaction gas and cool it down. It is intended to solve the technical problems in the prior art that gas-solid phase reactions are often accompanied by serious temperature runaway and surface carbon accumulation, which easily cause catalyst deactivation, and there are many side reactions, and the product impurity content is high, which puts pressure on the fine manufacturing of subsequent products.

The invention provides a hot coating and melting method for a chamfered crystallizer copper plate, and belongs to the field of metal surface treatment. The method comprises the steps that the surface of a chamfering crystallizer copper plate base body is pretreated; according to a set spraying sequence, spraying treatment is conducted on the surface of the pretreated chamfered crystallizer copper plate base body, gas cooling is conducted in the spraying treatment process, a coating is formed on the surface of the chamfered crystallizer copper plate base body, and a chamfered copper plate semi-finished product is obtained; assembling the chamfered copper plate semi-finished product and an anti-deformation tool; and under the inert gas atmosphere, coating fusion welding treatment is conducted on the chamfered copper plate semi-finished product assembled with the anti-deformation tool, then cooling and correction are conducted, and the chamfered crystallizer copper plate is obtained. The gradient coating of the copper plate is designed, the spraying sequence is reasonably designed, and gas cooling and assembly of a chamfered copper plate semi-finished product and an anti-deformation tool are carried out simultaneously in the spraying process, so that deformation of a chamfered part is reduced in the thermal spraying process of the chamfered crystallizer copper plate.

This application belongs to the technical field of metal processing equipment and discloses a mold cooling device for precision metal hardware production and processing. It includes two molds that fit together, each mold having a spiral channel. A water outlet connected to the spiral channel is fixed to one side wall of each mold, and a water inlet connected to the spiral channel is fixed to the other side wall of each mold. The two water outlets and the two water inlets are connected by telescopic pipes made of high-temperature resistant material. A supply mechanism is provided on one side of each mold for injecting cold water into the water inlet and extracting the heated water from the water outlet for cooling. This application, through improvements to the existing structure, reduces conductive and contact thermal resistance compared to the prior art where heat must sequentially pass through four solid side walls: the mold cavity metal wall, the mold box wall, the sleeve layer, and the water pipe wall, thus improving the heat exchange rate.

The utility model relates to cleaning device technical field discloses cleaning device, including fuselage, heating structure, sewage tank and dust extraction structure. The accommodating cavity is established on the fuselage. The heating structure sets up in the accommodating cavity. The sewage tank is connected on the fuselage, and the side of sewage tank towards the accommodating cavity is spaced apart from the fuselage and is surrounded with the fuselage and forms first air outlet passage, and the second air outlet passage is further equipped in the sewage tank. The dust extraction structure sets up on the fuselage, and the first air outlet passage and the second air outlet passage are communicated. The cleaning device provided by the utility model, when the airflow passes through the first air outlet passage, can take away the heat generated by the heating structure, carries out the heat dissipation to the heating structure, improves the heat dissipation effect of cleaning device, and does not need to set up the additional heat dissipation component element for the heating structure.

Provided is a crude oil decondensation device for measuring oil in an oil storage tank. The device comprises a container, a hanging lug, a water filling nozzle, a sealing cover and a traction rope, the crude oil decondensation device for measuring oil in the oil storage tank has the advantages of being easy to manufacture, economical, practical, safe and convenient to use, capable of meeting the safe use standard and high in heat transfer speed. The inverted cone design at the bottom of the container can increase the pressure intensity. And heat emitted by hot water in the container easily penetrates through the condensate oil, so that the device has the functions of preheating and penetrating through the condensate oil at the same time. Hot water is always in the container, heat loss is slow, the heat energy utilization rate is high, hot water cannot be accumulated in the oil measuring pipe or the instrument pipe, and the false liquid level problem can be prevented. The oil condensing cover can be thoroughly melted by lifting the traction rope up and down, and other operations of the oil storage tank can be guaranteed. And the labor intensity, manpower and material resources of workers are reduced, the working efficiency is improved, meanwhile, accurate metering can be achieved, and a great contribution is made for completing accurate accounting of crude oil.

The drying box tuyere comprises a bent plate and a U-shaped plate, the bent plate with air outlet holes is welded to the U-shaped plate, the bent plate is completely and symmetrically distributed relative to the U-shaped plate, a bottom plate is welded to the lower end of the bent plate, and sealed end plates are welded to the two ends of the bottom plate; the device is high in heat transfer efficiency and reduces the blocking frequency of the drying box.

The evaporator assembly comprises an aluminum plate and an aluminum coil pipe, a plurality of semicircular grooves which are arranged at intervals in the length direction and linearly extend in the width direction are formed in one end face of the aluminum plate in a pressing mode, the two ends of each semicircular groove are connected with the outside, and the aluminum coil pipe is in a circular pipe shape. The aluminum coil comprises a plurality of sections of straight pipe parts which are arranged in parallel, a transition bent pipe is connected between every two adjacent straight pipe parts in series, the aluminum coil further comprises a leading-in part and a leading-out part which are arranged at the ends, the straight pipe parts are installed in the semicircular grooves in a matched mode, and anti-interference holes for the transition bent pipes to be placed in are formed in the aluminum plate. According to the evaporator assembly, the contact area between the aluminum plate and the aluminum coil pipe is greatly increased while it is guaranteed that the machining technology is not complicated, the heat transfer speed is increased, the overall function is complete, and practicability is high.

The invention provides a rapid cooling Dewar assembly. The rapid cooling Dewar assembly comprises a Dewar shell, a cold finger and a cold disc, wherein the cold finger and the cold disc are arranged in the Dewar shell; the cold finger comprises a cold finger air cylinder backflow section and a cold finger air cylinder cold end, the cold finger air cylinder cold end is in a conical funnel shape, the small-caliber end of the cold finger air cylinder cold end is connected with the cold finger air cylinder backflow section, and the cold disc is installed at the large-caliber end of the cold finger air cylinder cold end. According to the Dewar assembly, the cold end of the cold finger air cylinder is designed to be of the conical funnel structure, the fluid disturbance of cold fluid at the cold end is increased through the structural design, the residence time of the cold fluid in the cold finger is prolonged, and therefore the cooling capacity of the cold fluid can be fully utilized, heat exchange between the cold fluid and the cold disc is enhanced, and the cooling effect of the Dewar cold head is improved.

The application provides a phase change heat storage composite superhard abrasive grinding wheel, which comprises a grinding wheel base and abrasive materials arranged on the outer periphery of the grinding wheel base. An annular cavity is arranged on the near-outer end region of the grinding wheel base. A heat dissipation fin is arranged in the annular cavity. The inner end and both side ends of the heat dissipation fin are in contact with the grinding wheel base. The outer end of the heat dissipation fin extends to the outer wall surface of the annular cavity but does not contact the outer wall surface. The outer wall surface of the annular cavity is provided with a layer of foamed metal. A working medium is injected into the annular cavity. The phase change heat storage composite superhard abrasive grinding wheel has the advantages of high heat transfer coefficient, large heat capacity, good structural strength and effective regulation and control of the temperature of the grinding arc region.

This utility model discloses a highly integrated thermal management bus assembly and a battery cell structure. The bus is installed inside the membrane structure. A plurality of thermally conductive fixing components are mounted on the surface of the liquid cooling plate, and these components pass through the membrane structure. The positive and negative output terminals of the module are respectively installed at both ends of the liquid cooling plate, and the connecting pieces for both the positive and negative output terminals are connected in series with the bus. By applying this utility model, a highly integrated thermal management bus assembly and a battery cell structure are provided. This device integrates the bus and liquid cooling plate into one unit, reducing the number of module parts and improving production efficiency. It also adds thermally conductive fixing components, which have excellent strength, enabling rapid heat transfer and heating. Furthermore, the thermally conductive fixing components can be effectively positioned and quickly installed with the battery cell.

The invention relates to a method for forming a TA15 titanium alloy cabin section through selective laser melting, belongs to the field of titanium alloy additive manufacturing, and solves the problems of cracking, deformation and difficult support removal caused by lack of an effective support adding method in selective laser melting forming of a large cabin section structure in the prior art. A method for forming a TA15 titanium alloy cabin section through selective laser melting comprises the following steps that S1, a model is designed, and solid supports are arranged, specifically, solid plate-shaped supporting assemblies distributed at equal intervals in the annular direction are designed according to the structural characteristics of the inner profile of the titanium alloy cabin section to be machined, and the solid plate-shaped supporting assemblies are connected with a base plate; triangular plate group supporting structures which are distributed at equal intervals are designed below a suspension surface which cannot be self-formed on the outer profile of the cabin section; s2, model processing; s3, selective laser melting forming; s4, powder cleaning; and S5, linear cutting. And the selective laser melting forming quality of the part is ensured through supporting design and optimization of the part, and the post-treatment period is shortened.

The application provides a control method of an air conditioner. The air conditioner comprises a first air outlet column and a second air outlet column, and the second air outlet column is arranged at intervals from the first air outlet column. The air conditioner has a first air supply mode, and the control method of the air conditioner comprises executing the first air supply mode. The first air supply mode comprises: rotating a front end of a second air deflector to a first preset position towards the first air outlet column, so that part or all of air flows from a second air outlet are supplied in a first direction. Rotating a front end of a third air deflector to a second preset position towards the first air outlet column, so that part or all of air flows from an air guide interval are supplied in a second direction. The angle between the first direction and a vertical plane extending in the front-rear direction is greater than the angle between the second direction and the vertical plane extending in the front-rear direction. The control method of the air conditioner of the application makes the temperature of the mixed air flow closer to the room temperature than the heat exchange air flow, the wind feeling is softer, and the comfort is higher.

The utility model relates to the technical field of heat dissipation devices, and provides a heterogeneous sintered tube which comprises a heat tube body and a capillary structure layer. A steam cavity channel allowing steam to flow is formed in the heat pipe body. The capillary structure layer is attached to the inner pipe wall of the heat pipe body, and at least part of the capillary structure layer protrudes and extends out of the steam cavity channel; and the capillary structure layer is formed by arranging a plurality of pore unit bodies with non-uniform thickness in the circumferential direction of the heat pipe body. The heterogeneous sintering tube is provided with the non-uniform capillary structure layer, the capillary acting force can be enhanced, the contact area between the capillary structure layer and the steam cavity channel is increased, evaporation liquid in the capillary structure layer can absorb heat and evaporate more easily, and in the scene that heat sources are not uniformly distributed, most areas of the capillary structure layer with the non-uniform thickness are small in heat resistance and fast in heat transfer, and the heat transfer efficiency is improved. The heat of a heat source can be transferred into the steam cavity more quickly within the same time, and the water return capacity of the thickness protruding part in the capillary structure layer with the non-uniform thickness at the condensation end is higher.

According to the method, 4-6 sections of temperature control areas are arranged in a vertical reactor at equal intervals, at least two sections of non-interval temperature control areas are arranged on the upper portion to serve as nucleation ends, a partition plate is adopted in the middle to form a temperature control area to serve as a transition section, and the bottom serves as a raw material end; in an inert atmosphere, respectively placing a mixture containing a phosphorus source, a catalyst and a transport agent at the raw material end and the transition section; and sequentially heating the raw material end, the transition section and the nucleation end to prepare the black phosphorus crystal. And carrying out high-temperature reaction by optimizing a heating program and the proportion of each partition material to prepare the high-quality black phosphorus crystal. On one hand, the partition plates are added to weaken the acting force between materials in the vertical space, and the gas phase-solid phase heat transfer mode in the amplification process is achieved; and on the other hand, through optimization of a heating program and the feeding proportion of the upper parts of the partition plates, the contact area between materials is increased, the reaction is accelerated, the single black phosphorus crystal yield is increased, and the reaction time is shortened.

The utility model relates to a photovoltaic building integrated assembly which comprises a panel, a back plate and a photovoltaic cell layer located between the panel and the back plate, a cavity is formed in the back plate, a snakelike first heat exchange pipe is arranged in the cavity, a water inlet pipe and a water outlet pipe which are communicated with the first heat exchange pipe extend into the cavity in a sealed mode, and the water inlet pipe and the water outlet pipe are communicated with the first heat exchange pipe. A plurality of reinforcing plates for supporting the cavity are further arranged in the cavity, and penetrating holes allowing the first heat exchange pipes to penetrate through are formed in the reinforcing plates. The heat exchange effect is achieved through the arrangement of the first heat exchange tubes, meanwhile, due to the fact that the cavity is formed in the bottom plate, the supporting strength of the bottom plate is reduced, the strength of the bottom plate can be enhanced through the arrangement of the reinforcing plate, the strength loss caused by the cavity is made up, and the service life of the heat exchanger is prolonged. And meanwhile, the first heat exchange tubes and the bottom plate are connected through the reinforcing plates, the contact area is increased, and rapid heat transfer is facilitated.