US20050061486A1 - Integrated heat pipe and its method of heat exchange - Google Patents

Integrated heat pipe and its method of heat exchange Download PDF

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US20050061486A1
US20050061486A1 US10/489,534 US48953404A US2005061486A1 US 20050061486 A1 US20050061486 A1 US 20050061486A1 US 48953404 A US48953404 A US 48953404A US 2005061486 A1 US2005061486 A1 US 2005061486A1
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heat
thin
chamber
wall
enclosed
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Hongwu Yang
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0208—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes using moving tubes

Definitions

  • This invention is related to heat exchange technology and method, specifically, an integrated heat pipe and its heat exchange method.
  • Heat pipe technology is a highly effective heat transfer element and highly effective heat transfer technology, which transfers heat by the phase change process, that is, to fill a small amount of liquid medium into the enclosed vacuum chamber of a tubular article, where a liquid medium is used to absorb heat, vaporizes, condenses and eliminates heat.
  • Heat pipe heat exchanger is so constructed that the heat absorption end and heat elimination end of several heat pipe elements are partitioned and the heat absorption end and heat elimination end are surrounded with articles to form two shaped cavities, heat absorption and heat elimination, with hot fluid flowing through the heat absorption chamber and the cold fluid flowing through the heat elimination chamber, thus heat being transferred to the cold fluid via heat pipe and the phase change of the heat pipe medium.
  • heat pipe The structural characteristic of heat pipe is that the inner chamber of a flexible tubular article is vacuumed and filled with a small amount of liquid medium and the inner chamber of the pipe is just big enough for a liquid absorption cartridge that ensures liquid reflux.
  • a single heat pipe can be used as heat exchanger, but it is more often that the heat exchangers composed of several heat pipe elements are used at the same time.
  • the current heat pipe technology of the heat elimination of plane heat sources is mostly of studded heat pipe type. That is to make notch in the metal plate of fine thermal conductivity, inlay the heat absorption end of heat pipe in the notch, put the heat elimination end at a ventilated place and the metal plate is placed horizontally above the heating element.
  • a heat conducting insulation plate coated with heat conducting silicone is placed between them.
  • Heat is transferred via heat conducting silicone, heat conducting insulating plate from the heat source to the metal plate, then to the heat pipe, where as a result of phase change heat is transferred from heat absorption end to the condensation end, and the heat absorbed at the condensation end is transferred through the shell of the heat pipe to another layer of silicone, then to the aluminum fin type radiator.
  • the heat accumulated in the fin radiator is carried away by forced cold wind to accomplish the purpose of reducing the temperature of the heat source ultimately.
  • This inlaying method does not produce very good heat elimination effect as the contact thermal resistance of the element connected with interface in the course of heat transfer is so big that the heat pipe cannot play the role of high efficiency heat transfer and the heat eliminating effect is not so good.
  • the contact thermal resistance of the interface can be reduced, the medium of the heat pipe can not be in full contact with the heat source and can not produce very good heat transfer effect.
  • the fast solidifying metal technology is to fix metal molecules on higher energy level. Since Duwez invented the fast solidifying technology in 1960, the technology has been improved and systemized continuously and commercialized gradually. Because of its high dynamic property and fine physical and chemical property the fast solidifying metals have attracted the attention of the materials scientific workers throughout the world, who have put much manpower, material and funds in the research. As a result of the development over the last three decades the fast solidification technology and its research on metals have become one of the important branches of materials science and engineering. As the fast solidification technology is to increase the super-cooling extent and speed of solidification mainly by increasing solidification speed, the solidification speed is very important for the formation and property of the fast solidifying material.
  • fast solidification processes and equipment for production of fast solidifying materials mainly in three categories of mould cooling technology, atomization technology and surface melting and sedimentation technology.
  • the existing production unit includes rotating or fixed cold mould (or base), mostly made from metals of fine thermal conductivity.
  • Its heat exchange method is to build a cooling liquid passage in fabrication of the equipment base, which is designed to carry away swiftly the heat absorbed by the base to accomplish the fast cooling purpose of fast solidifying material.
  • Hot fluid ejecting nozzles are widely applied in engineering technology, particularly, plasma welding cutting torch, plasma spray coating nozzle, nozzle of electron beam welding torch, nozzle of large power arc welding torch, etc.
  • the high efficiency heat transfer characteristic of heat pipe can not be displayed because their technical design fails to greatly improve the heat elimination area of nozzle and the geometric dimensions of nozzle are small. Therefore, the existing technology is still unable to meet the requirement of the engineering technology and should be further improved.
  • Heat exchanger including that for heat exchange between fluid media is the most conventional basic equipment used in various Industrial sectors of the state economy. People have never stopped in trying to improve the function of heat exchanger to increase the heat transfer efficiency of heat exchanger by various technologies, methods and means over hundreds of years.
  • the heat pipe phase change heat transfer technology including the use of high heat conductivity medium to transfer heat, is an effective try.
  • the high thermal conductivity, big heat elimination area and fairly low production cost of heat pipe heat exchanger is well applied in residual heat recovery in the field of heat exchanger.
  • the branch like distribution of the heat pipe of the traditional heat pipe heat exchanger and its square box structure is apt to fouling on heat elimination surface and dead corner and whirlpool of fluid flow thus affecting the normal heat exchange and application life of heat exchanger.
  • the single structure and huge volume of the traditional heat exchanger is one of the limiting factors. Up to now there is no report about any application of integrated heat pipe technology in the field of heat exchanger.
  • the large capacity motor and generator are normally cooled with the gas in enclosed re-circulation, or by pipe ventilation, independent fan type cooling or by having hollow copper winding of rotor for cooling water flowing through the hollow copper winding, shaft and sealed water jacket to carry away the heat.
  • Some people apply the heat pipe phase change heat transfer technology to improve the heat elimination of motor rotor in this manner that they hollow out the shaft of the motor so as to form a somewhat biased empty chamber, which extends through the heat absorption end and heat elimination end of rotor and is vacuumed and filled with a small amount of liquid medium.
  • the medium absorbs heat and vaporizes at the heat absorption end and emits heat and condenses into liquid at the heat elimination end.
  • the reflux liquid flows back to the heat absorption end over the slope under the action of a centrifugal force.
  • the heat carried by the medium at the heat elimination end is carried away by the cold air blowing out of the fan and the internal heat in the rotor is ultimately eliminated thus forming a reciprocating heat recycle.
  • the rotating heat pipe technology can produce fairly good effect in improving the heat elimination of motor rotor.
  • the above-mentioned methods have many shortcomings, such as inferior heat elimination and high production cost and still they have a common shortcoming, that is, heat elimination area is small and the heat elimination capacity is intrinsically inadequate. How to improve the heat elimination capacity of motor rotor and to enhance the capacity and reliability of the above-mentioned power machines has been a subject that the scientists and engineers have to confront for a long time.
  • One object of this invention is to make up the shortcomings of background technology and provide an integrated heat pipe that can increase the heat transfer efficiency and that is an integrated heat pipe of complicated shape surface and radial structure for contact heat source and fluid medium heat source.
  • Another object of this invention is to provide several methods concerning integrated heat pipe including:
  • FIG. 1-1 illustrates a sectional view according to one of the embodiments of this invention
  • FIG. 1-2 illustrates a sectional view according to one of the embodiments of this invention
  • FIG. 1-3 illustrates a sectional view according to one of the embodiments of this invention
  • FIG. 2-1 illustrates a view according to one of the embodiments of this invention
  • FIG. 2-2 illustrates a view according to one of the embodiments of this invention
  • FIG. 3-1 illustrates a view according to one of the embodiments of this invention
  • FIG. 3-2 illustrates a view according to one of the embodiments of this invention
  • FIG. 4 - 1 illustrates a view according to one of the embodiments of this invention
  • FIG. 4 - 2 illustrates a view according to one of the embodiments of this invention
  • FIG. 5 illustrates a view according to one of the embodiments of this invention
  • FIG. 6-1 illustrates a sectional view according to one of the embodiments of this invention
  • FIG. 6-2 illustrates a view according to one of the embodiments of this invention.
  • FIG. 6-3 illustrates a view according to one of the embodiments of this invention.
  • FIG. 7-1 illustrates a view according to one of the embodiments of this invention.
  • FIG. 7-2 illustrates a view according to one of the embodiments of this invention.
  • FIG. 8-1 illustrates a view according to one of the embodiments of this invention
  • FIG. 8-2 illustrates a view according to one of the embodiments of this invention.
  • FIG. 9-1 illustrates a view according to one of the embodiments of this invention.
  • FIG. 9-2 illustrates a view according to one of the embodiments of this invention.
  • FIG. 10-1 illustrates a view according to one of the embodiments of this invention
  • FIG. 10-2 illustrates a view according to one of the embodiments of this invention.
  • FIG. 11-1 illustrates a view according to one of the embodiments of this invention.
  • FIG. 11-2 illustrates a view according to one of the embodiments of this invention.
  • a kind of integrated heat pipe includes a shell with a enclosed chamber vacuumed and filled with heat transfer medium, which is characterized by the following: there are one or more than one groups of heat carriers outside the enclosed chamber or inside it or outside and inside it, with every group of heat carriers sharing a enclosed chamber and the heat transfer medium in the same enclosed chamber.
  • the heat transfer medium may be the heat transfer liquid medium of phase change process or high efficiency heat transfer medium for other heat transfer mode; heat carrier is heat elimination end and shell or part of the shell is heat absorption end.
  • a kind of integrated heat pipe including a shell with a enclosed chamber vacuumed and filled with heat transfer medium, which is characterized by the following: the integrated heat pipe shell or part of the shell is heat absorption end, which may be one or more than one groups of heat absorbing cavities in the enclosed chamber that runs through the shell; it can be a shell covering the enclosed chamber, including the shell covering the revolving structure of the enclosed chamber or the shell of corrugated and curved surface that packages the enclosed chamber and is distributed along the outline of the revolving structure; it may be an end surface or part of the end surface vertical to the axial line of heat pipe.
  • the integrated heat pipe shell or part of the shell is heat absorption end, which may be one or more than one groups of heat absorbing cavities in the enclosed chamber that runs through the shell; it can be a shell covering the enclosed chamber, including the shell covering the revolving structure of the enclosed chamber or the shell of corrugated and curved surface that packages the enclosed chamber and is distributed along the outline of the revolving structure; it may be an end surface or
  • the outline of the shaped surface of its heat absorption end may correspond, tally or closely match with the shaped surface of heat source and may be the shaped surface composing of the limited group of corrugated and curved surface or the limited group of curved surface of enclosed tubular thin-wall fluid passage or the curved surface of their combination. Its heat transfer medium is distributed at a place at the heat absorption end in the enclosed vacuum chamber closest to the heat absorption surface.
  • the heat transfer medium mentioned above can be liquid heat transfer medium such as water, or inorganic heat transfer medium or compound powder of ytterbium, barium, copper and oxygen YBCO.
  • the shell of the said integrated heat pipe and the heat carriers placed outside the enclosed vacuum chamber or inside it or outside and inside it are made from metal of fine thermal conductivity such as copper or aluminum.
  • the said heat carrier of thin-wall fluid passage structure is designed to eliminate heat with cooling fluid; alternatively, heat containing structure of fine thermal conductivity, large heat volume and big surface area is adopted to hold heat and good heat absorbing material and structure is used as heat container.
  • the shell of the said integrated heat pipe or part of the shell is heat absorption end, and to the contact heat source with heat transfer as main mode of thermal conductivity the formation of its shaped surface corresponds, tallies and closely contact with shape surface of the heat source.
  • its shaped surface becomes limited group of corrugated and curved surface or limited group of curved shape of enclosed fluid passage or the form of their combination. Its heat transfer medium is placed at a place at the heat absorption end of the enclosed vacuum chamber closest to the heat-absorbing surface.
  • the structure of the thin-wall fluid passage structure is uneven curved surface with every undulation constituting a group of heat carriers and every group of heat carriers is independent and connected with each other.
  • the inner side of every corrugated curved surface is the inner chamber of a heat carrier, which has access to the enclosed vacuum chamber and is the extension of enclosed vacuum chamber.
  • the outer side of every corrugated curved surface is a fluid passage for a heat carrier in contact with cold liquid as the heat elimination surface of heat carrier.
  • the wall surface of the enclosed vacuum chamber and the wall surface of the corrugated thin-wall fluid passage constitute the shell of this integrated heat pipe together.
  • the curved surface of the thin-wall fluid passage structure may be parallel and upright fins, same radius bended fins, radial and upright fins, radial and bended fins, evenly and unevenly distributed column, the mirrored shape of evenly and unevenly distributed column and base shell, inversed U shape and their combination. They can be any regular or irregular corrugated curved surface.
  • the inner and outer surfaces of the curved surface may have fins for auxiliary heat elimination.
  • this heat carrier When this heat carrier is of thin-wall fluid passage structure and is placed in the enclosed vacuum chamber of the integrated heat pipe, this thin-wall fluid passage structure is enclosed and tubular and the cold fluid incoming and outgoing ends of the thin-wall fluid passage either run through both ends of enclosed vacuum chamber or run through the neighboring ends of enclosed vacuum chamber, or run through the same end of enclosed vacuum chamber.
  • Every enclosed tubular fluid passage is a group of heat carriers and every group of heat carriers is independent of each other and connected with each other.
  • the inner side of the section of thin-wall fluid passage is cold fluid passage and the heat elimination surface of heat carrier as well.
  • the shape of the section of thin-wall fluid passage may be circular, rectangular, polygon, dentiform or other geometric shape.
  • the inner wall of fluid passage section may have fins.
  • the structure of this heat container is composed of film-shaped, or flake-shaped or tubular or silk-shaped materials of large surface area or their combination curled or stacked at a space between various layers that ensures heat transfer medium transferring heat fully.
  • the structure of heat container may be bee-hived, floccular, hemp-like or rolled in spirals or stacked, or covered with thin-wall tube or their combination. The openings between layers face the heat absorption end.
  • the heat absorption end of shell can be made as an end surface or part of the end surface vertical to the axial line of heat pipe, and the shaped surface of its heat absorption end corresponds, tallies and closely matches with the shaped surface of heat source, it can be smooth, flat and straight; smooth and raised; smooth and sunken; it may be fabricated according to the outline curved shape, and it can be inlaid and covered and closely matched.
  • the heat absorption end of heat pipe may be one group or more than one groups of heat absorbing cavities running through shell and enclosed chamber, and it may run through both extreme ends of shell, or the neighboring ends of the shell, or the same end of the shell.
  • the cross section of the heat-absorbing chamber may be circular, rectangular, polygon, dentiform, or other geometric shape.
  • the vertical section of its heat-absorbing chamber can be of a slope.
  • the heat absorption end of heat pipe can be a revolving shell structure that covers the enclosed chamber and is of circular outline surface of the cross section.
  • the vertical section outline surface can be rectangular bucket shaped, drum-shaped, or other revolving shape surface that meets the requirement of heat source.
  • the heat absorption end of heat pipe can be a corrugated thin-wall curved surface structure that is distributed on the basis of circular outline surface of cross section or other geometric shape covers the enclosed chamber. They can be more than three groups of fin shaped curved surface, evenly distributed or symmetrically distributed, contour or non-contour. They can be radial and upright fin shaped, radial and bended fin shaped or suitable curved shape or their combination. Its vertical section outline is rectangular, drum-shaped or other revolving shape suitable for the heat source.
  • Heat transfer medium of heat pipe shell or part of the shell as heat absorption end is distributed somewhere in the enclosed chamber closest to the heat absorption surface. Therefore, when liquid medium is used, a liquid absorbing cartridge of heat pipe can be placed somewhere in the enclosed chamber closest to the heat absorption surface.
  • the structure of this liquid absorbing cartridge of heat pipe can be groove, gauze, fiber bundle plus spring, sintered metal powders or their combination or other effective structure.
  • Auxiliary fluid passage with inlet and outlet can be built in the thin-wall fluid passage for heat carrier of heat pipe or in the heat absorption chamber of heat absorption end or the corrugated curved thin-wall shell or in the thin-wall fluid passage for heat carrier or in the heat absorption chamber of heat absorption end or the corrugated curved thin-wall shell.
  • the fluid passage either covers corrugated fin-shaped curved surface of thin-wall fluid passage or covers the corresponding part of the end cover of enclosed tubular thin-wall fluid passage.
  • the heat absorption end of the above-mentioned heat pipe is vertical to an end surface of the axial line of the heat pipe or some part of the end surface, it can be flat and straight plane or a curved surface inlaid on the surface of heat source.
  • the shaped surface of its heat absorption end corresponds, tallies and closely matches with the shaped surface of heat source and can be smooth, flat and straight; smooth and raised; smooth and sunken; it can be made according to the outline curved shape of contact heat source and can be inlaid and covered and closely matched. It is placed above the heat source.
  • the heat transfer medium is distributed somewhere in enclosed vacuum chamber closest to the heat absorption surface.
  • the structure of thin-wall fluid passage is corrugated curved shape, it can be parallel and upright fin-shaped, same radius bended fin shaped, radial and upright fin shaped, radial and bended fin shaped, evenly and unevenly distributed column, mirrored shape of evenly and unevenly distributed column and base shell, inversed U shaped and their combination, etc. It can be any regular or irregular corrugated curved shape.
  • the inner and outer surface of curved shape can be equipped with fins for auxiliary heat elimination.
  • the structure of the thin-wall fluid passage When placed inside the enclosed vacuum chamber as thin-wall fluid passage at the heat elimination end, the structure of the thin-wall fluid passage is of enclosed and tubular shape, the cold fluid inlet and outlet ends of thin-wall fluid passage either run through both ends of the enclosed vacuum chamber or run through the neighboring ends of the enclosed vacuum chamber.
  • the cross section of thin-wall fluid passage can be circular, rectangular, polygon or other geometric shape.
  • the inner wall of fluid passage section can be fixed with fins.
  • the cooling fluid for heat elimination can be air or other cold fluid such as water.
  • This heat pipe is used for heat elimination of cooling roll made of thin strap of fast solidifying metal.
  • the cross section outline of the shell covering enclosed chamber is circular and the outline of its vertical section can be rectangular, drum-shaped or other revolving shape that meets the requirement of heat source; one group or more than one groups of enclosed tubular thin-wall fluid passages or one group of enclosed corrugated curved surfaces, which are coaxial with heat pipe and distributed on the basis of circumference and placed in the enclosed chamber and run through shell and the two facing ends that are vertical to the axial line of heat absorption surface.
  • Auxiliary fluid passages connected with the thin-wall fluid passage are placed on the two corresponding ends of shell that are vertical to the axial line of the heat absorption surface, and these auxiliary fluid passages have their own cold fluid inlet and outlet.
  • the inner surface of the heat absorption end of the round shell of the above-mentioned integrated heat pipe can have such effective liquid absorbing cartridge as groove or sintered metal powder.
  • the outer surface of the heat absorption end of the round shell is heat absorption end surface.
  • the heat absorption chamber of heat absorption end of heat pipe runs through the two corresponding ends of shell and are placed in the middle of heat pipe, and the inner surface of the cross section of its heat absorption chamber can be circular, rectangular, polygon, dentiform or other geometric shape.
  • the cross section of enclosed tubular thin-wall fluid passage can be circular, rectangular, polygon, dentiform or other geometric shape.
  • the cross section of the heat absorption end of above-mentioned integrated heat pipe and the outer surface connected with the vacuum chamber can has groove or liquid absorbing cartridge or sintered metal powder or other effective liquid absorbing structure.
  • a liquid medium accumulation basin is placed at the base of liquid absorbing cartridge. It is vertical to the enclosed chamber of the integrated heat pipe formed by the end cover of heat absorption chamber, heat absorption chamber and thin-wall fluid passage. There is an auxiliary fluid passage with cooling water inlet and outlet, which either covers the thin-wall fluid passage of corrugated fin shaped curved surface or covers the corresponding part of the end cover of enclosed tubular thin-wall fluid passage.
  • the heat absorption chamber at the heat elimination end of heat pipe runs through the corresponding two ends of shell and are placed in the middle of heat pipe, and the inner surface of the cross section of heat absorption chamber can be circular or other suitable geometric shape, and the outline surface of its vertical section can be rectangular, inversed cone-shaped or other revolving shape surface that meets the requirement of heat source; as cold fluid passage at the heat elimination end of heat pipe, it can be corrugated, radial and upright fin shaped curved surface, radial and bended fin shaped curved surface, dentiform distributed along inversed cone-shaped revolver, other evenly and unevenly distributed corrugated curved surface thin-wall fluid passage, which are parallel to the axial line of heat absorption chamber, the outline surface of its vertical section is rectangular, inversed cone-shaped or other revolving shape surface.
  • Shell structure covering its outline can be placed outside the corrugated thin-wall fluid passage, constituting the auxiliary fluid passage to quicken the flow of cold fluid.
  • the surface of its heat absorption chamber that is connected with enclosed vacuum chamber has groove or liquid absorbing cartridge or sintered metal powder or other effective liquid absorbing cartridge structure.
  • heat pipe When this heat pipe is used for heat elimination of cold mould made of fast solidifying metal block, there is one group of heat absorbing cavities in the middle of enclosed chamber, which runs through the two opposite ends of shell.
  • the cross section of its heat absorption chamber can be circular, rectangular, polygon, dentiform or other geometric shape with a slope for mould pulling.
  • Heat containing structures of fine thermal conductivity, large thermal capacity and large surface area are used as heat carriers of the heat elimination end of heat pipe and placed outside the enclosed chamber or inside it or outside and inside it, and the structure of thermal container can be film-shaped or flake-shaped or tubular or silk-shaped materials of large surface area or their combination in curled or stacked form, or thin-wall covered or in their combined form.
  • the cross section of its heat absorption chamber that is connected with vacuum chamber can have groove or liquid absorbing cartridge or sintered metal powder or other effective liquid absorbing cartridge structures.
  • a heat absorption end of heat pipe and another high thermal conductivity metal made template can be made opposite each other with a high thermal conductivity metal template placed between them.
  • the template is hollow and has metal fluid casting channel and gas releasing channel in it. The heat absorption ends of heat pipe and the template surround the hollow part and turn it into a heat absorption chamber.
  • the structure of thermal container can be film-shaped or flake-shaped or tubular or silk-shaped materials of large surface area or their combination in curled or stacked form; the structure of its heat container can be bee-hive shaped, floccular, hemp-like, film or sheet formed in spirals or stacked, thin-wall tube covered or their combined form.
  • the opening between layers faces the heat transfer medium of heat absorption end.
  • heat pipe When this heat pipe is used as heat exchanger between two kinds of fluid media, several groups of heat absorbing cavities as the heat absorption end of heat pipe run through the two opposite ends of shell and are placed in the middle of heat pipe.
  • the cross section of its heat absorption chamber can be circular, rectangular, polygon, dentiform or other geometric shape and their combination.
  • the thin-wall fluid passage structure at the heat elimination end of heat pipe can be corrugated, radial and upright fin shaped or radial and bended fin shaped curved shape, placed outside enclosed chamber and parallel to the axial line of heat absorption chamber.
  • the surface of the heat absorption chamber connected with vacuum chamber can has such liquid absorbing cartridge structures as groove or sintered metal powder or other effective liquid absorbing cartridge structure.
  • a liquid medium accumulation basin can be placed under the liquid absorbing cartridge.
  • Heat absorption chamber, the corrugated thin-wall fluid passage placed outside enclosed chamber and the end cover of shell vertical to the heat absorption chamber together form the enclosed chamber of heat pipe.
  • the auxiliary hot fluid passage that covers the two ends of the end cover of shell and has hot (and cold) fluid inlet and outlet and the auxiliary cold fluid passage that covers the corrugated thin-wall fluid passage outside enclosed chamber and has cold (and hot) fluid inlet and outlet and the heat pipe together constitute the integrated heat pipe heat exchanger for heat exchange between two fluid media.
  • a method includes obtaining large heat elimination area in a small volume with an integrated heat pipe of a complicated shape surface and radial structure mainly for contact heat source and fluid medium heat source.
  • This method is designed to obtain a compact space by taking advantage of the corrugated thin-wall fluid passage placed outside enclosed chamber or inside it or outside and inside it or the enclosed tubular thin-wall fluid passage or thermal container of fine thermal conductivity, large thermal capacity and large surface area or the heat carrier of any of their combination; and to obtain larger heat elimination area by taking advantage of the corrugated curved surface of the heat carrier.
  • a method for setting the structure of the heat absorption end of integrated heat pipe including distribution of heat transfer medium somewhere in the enclosed chamber closest to the heat absorption surface.
  • a liquid medium is used, a liquid absorbing cartridge structure of heat pipe can be placed some where in the enclosed chamber closest to the heat-absorbing surface.
  • the shaped surface of its heat absorption end can be so made as to correspond, tally and closely match with the outline surface of heat source. It can be made smooth, flat and straight; smooth and raised; smooth and sunken; it can be made according to the outline curved surface of contact heat source, or inlaid and covered and fully and closely matched.
  • the heat absorption chamber structure can be that running through the two opposite ends of shell, or that running through two neighboring ends of shell or that running through the same end of shell.
  • the cross section of its heat absorption chamber can be circular, rectangular, polygon, dentiform or other geometric shape.
  • the vertical section of its heat absorption chamber can be of a slope.
  • This method includes that the heat absorption end of heat pipe is so made that the outline surface of its cross section is circular and covers the revolving shell of enclosed chamber.
  • the outline surface of its vertical section is rectangular, drum-shaped or other revolving shape that meets the requirement of heat source.
  • This method includes that the heat absorption end of heat pipe can be so made that the outline surface of its cross section is enclosed corrugated thin-wall curved surface that is based on circular or other geometric shape and covers enclosed chamber, they can be more than three groups of evenly distributed or unevenly distributed, contour or non-contour fin-shaped curved surfaces, which can be radial and upright fin shaped, radial and bended fin-shaped or other suitable curved surface and their combination.
  • the vertical section of its basic outline surface is rectangular, drum-shaped or other revolving shape surface that meets the requirement of heat source.
  • This method includes that a hollow high thermal conductivity metal template that has hot melt pouring channel and gas releasing channel and is placed between the heat absorption end of heat pipe and another high thermal conductivity metal template, can also obtain the heat absorption chamber of integrated heat pipe and the high thermal conductivity metal template that is made hollow in the center and has hot melt pouring channel and gas releasing channel and placed between the heat absorption end surfaces of two heat pipes, or the heat absorption chamber of integrated heat pipe and the heat absorption end surface of several heat pipes form heat absorption chamber together.
  • a heat exchange method with integrated heat pipe uses the contact heat source on the surface of the heat absorption end of heat pipe shell to absorb heat and transfer heat to the same heat transfer medium in the same enclosed chamber via the wall surface of the heat absorption end of shell to enable the heat transfer medium to absorb heat or to absorb the heat absorbed in fast dispersion of vaporization, and use the heat carrier placed outside enclosed chamber or inside it or outside and inside it as heat elimination end, and the heat absorbed by heat transfer medium is contained or transferred; this method uses the low temperature fluid in the thin-wall fluid passage placed outside enclosed chamber or inside it or outside and inside it to transfer the heat absorbed by heat transfer medium.
  • This method uses the thermal container placed outside enclosed chamber or inside it or outside and inside it to hold the heat absorbed by heat transfer medium.
  • This method uses the heat transfer medium of heat pipe placed somewhere in enclosed chamber closest to the heat absorption surface and uses heat transfer medium to carry away heat to the place where heat carrier is closest to the heat elimination surface to reduce thermal resistance, improve heat transfer conditions and increase thermal conductivity.
  • a liquid medium involving method of heat exchange with rotating integrated heat pipe uses the shell of circular cross section of heat pipe as heat absorption end surface, which absorbs heat while turning at a high speed, and transfers heat via the wall surface of heat absorption end of shell to the same heat medium in the same enclosed chamber that is swung on the surface of inner wall of heat absorption end.
  • the heat transfer medium absorbs heat and vaporizes quickly, and the enclosed chamber is filled with saturated steam, which is quickly condensed on the surface of thin-wall fluid passage as soon as it meets the low temperature fluid.
  • the hidden vaporization heat carried over is released and the thin-wall fluid passage transfers the hidden vaporization heat to the cold fluid outside the enclosed chamber of thin-wall fluid passage, and the heat absorbed by heat pipe is carried away by cold fluid ultimately.
  • the mass of the liquid medium condensed on the surface of thin-wall fluid passage increases quickly under the centrifugal force and the liquid medium is swung on the surface of the inner wall of heat absorption end again thus starting a new round of heat transfer process, which repeats again and again.
  • This method is of a large heat elimination area, and by taking advantage of phase change an even heat transfer can be carried out at the same temperature throughout the whole heat elimination area.
  • the centrifugal force of the turning heat pipe ensures that the liquid medium flows towards the heat absorption end and the interface thermal resistance in the course of phase change heat transfer can be reduced by a biggest margin so that an optimum heat transfer effect is obtained.
  • this method uses the shell of circular cross section of heat pipe as heat absorption end surface, which contacts the heat source at a low turning speed to absorb heat, which is transferred to the same heat transfer medium in the same enclosed chamber that is adhered on the inner wall surface of heat absorption end under the adhesive action of liquid medium and is in the liquid absorbing cartridge.
  • the heat transfer medium absorbs heat and vaporizes quickly, and the saturated steam filling the enclosed chamber condenses quickly on the surface of thin-wall fluid passage as soon as it meets the low temperature fluid in the thin-wall passage, and the hidden vaporization heat carried over is released, and the thin-wall fluid passage transfers the hidden vaporization heat to the cold fluid outside the enclosed chamber of thin-wall fluid passage, and the heat absorbed by heat pipe is ultimately carried away by the cold fluid.
  • the mass of the liquid medium condensed on the surface of thin-wall fluid passage increases quickly under the weight action, and it then returns to the lowest part of the enclosed chamber of heat pipe.
  • the liquid medium enters the liquid absorbing cartridge of heat pipe under the action of capillary force of liquid absorbing cartridge of heat pipe, and is back again to the position in contact with heat source, thus starting a new round of heat transfer process, which repeats again and again.
  • This method is of large heat elimination area and uses phase change to carry out even heat transfer at the same temperature throughout the heat transfer area, and the capillary force of the liquid absorbing cartridge of heat pipe and the adhesive force of the heat pipe medium ensure that liquid medium flows toward the heat absorption end and ideal heat transfer effect can be obtained similarly.
  • Application Example 1 is a kind of heat pipe applicable to integrated heat pipe coolers with an in-line finned structure for cooling CPU of computers, express cards, high-power power electronic components.
  • the heat carrier 1 - 4 has a thin-wall fluid passage 1 - 4 a with radial in-line distribution of 12 long fins and 12 fins matching with the axis of the heat pipe, the inner side of each group of long fin and short fin is the internal chamber of the heat carrier 14 , and is connected with the vacuum chamber 1 - 2 and the extension to the vacuum chamber 1 - 2 ; the outer side of each long fin and short fin is cooling surface of the fluid passage 1 - 4 a of the heat carrier 1 - 4 , which contacts with the cool fluid; each group of the heat carrier shares an enclosed chamber 1 - 2 and the heat transfer medium 1 - 3 in the vacuum chamber; each group of heat carrier 1 - 4 is independent while connected with each other; the wall of the enclosed chamber and the wall of the corrugated thin-wall of the fluid passage combined constitute the shell of the integrated heat pipe;
  • the corrugate thin-wall fluid passage 1 - 4 a can be of other cambered structures, such as isometric curved finned structure, radial curved finned structure etc. Between two bordering corrugated finned thin-wall fluid passage 1 - 4 a , several fins with their wall closely contacting can be fabricated to increase cooling area of the heat pipe.
  • One part of the shell 1 - 1 is made into a plain heat absorption end matching with the plane of the heat source and placed on the top of the heat source to take in heat.
  • the shell transfers the heat to the heat transfer medium 1 - 3 in the vacuum chamber 1 - 2 , the heat transfer medium absorbs the heat or evaporates to rapidly dispel the heat, and then the heat is transferred to the fluid passage 1 - 4 a through the corrugated wall with long fins and short fins and finally taken away by the cool fluid.
  • the whole cooling surface Since the cooling area is increased and the heat transfer medium 1 - 3 is placed in a position that is nearest to the heat source, and by taking the advantages of phase change of fluid and the super heat transfer process of heat efficient heat transfer substances, the whole cooling surface has an even distribution of temperature and every unit cooling area can exert its function to an utmost extent, which is unrivalled by any other coolers with similar structure.
  • Application Example 2 is a kind of integrated heat pipe applicable to integrated heat pipe coolers with an in-line finned structure for cooling CPU of computers, or high-power power electronic components.
  • the heat carrier 2 - 4 has a fluid passage 2 - 4 a structure with parallel array of 13 groups of finned thin-wall fluid passage 2 - 4 a from heat-in of the shell to its opposite end;
  • the internal side of each group of finned thin-wall fluid passage 2 - 4 a is the inner chamber of the heat carrier and is connected with the enclosed vacuum chamber 2 - 2 and an extension to the enclosed vacuum chamber 2 - 2 ;
  • the outer side of each group of finned thin wall fluid passage 2 - 4 a is the cooling surface of the heat carrier 2 - 4 , which contacts with the cool fluid;
  • each group of heat carrier shares the same enclosed vacuum chamber 2 - 2 and the heat transfer medium 2 - 3 in the chamber
  • the corrugated thin-wall fluid passage 2 - 4 a can be of other cambered structures, such as isometric curved finned structure, radial curved finned structure etc. Between two bordering finned thin-wall fluid passage 2 - 4 a , several fins with their wall closely contacting can be fabricated to increase cooling area of the heat pipe.
  • One part of the shell 2 - 1 is made into a plain heat absorption end matching with the plane of the heat source and placed on the top of the heat source to take in heat.
  • the shell transfers the heat to the heat transfer medium 2 - 3 in the vacuum chamber 2 - 2 , which absorbs the heat or evaporates to rapidly dispel the heat, and then the heat is transferred to the fluid passage 2 - 4 a through the finned thin wall and finally taken away by the cool fluid.
  • the whole cooling surface Since the cooling area is increased and the heat transfer medium 2 - 3 is placed in a position that is nearest to the heat source, and by taking the advantages of phase change of fluid and the super heat transfer process of heat efficient heat transfer substances, the whole cooling surface has an even distribution of temperature and every unit cooling area can exert its function to an utmost extent, which is unrivalled by any other coolers with similar structure.
  • Application Example 3 is a kind of heat pipe applicable to integrated heat pipe coolers with a thin-wall rectangle pipe structure for cooling CPU of computers, or high-power power electronic components.
  • It features 11 groups of heat carrier 3 - 4 in the inner side of the enclosed vacuum chamber 3 - 2 that is enclosed by the rectangle shell, and the left and right end plates 3 - 6 of the shell;
  • the heat carrier is a fluid passage 3 - 4 a structure composed of thin-wall pipes with a rectangle cross section and runs through both ends of the end plates 3 - 6 of the shell;
  • the outer wall of each thin-wall pipe with rectangle cross section constitutes the inner chamber of the heat carrier 3 - 4 and is connected with the enclosed vacuum chamber 3 - 2 and inside the enclosed vacuum chamber 3 - 2 ;
  • the inner wall of each rectangle thin wall pipe is the cooling surface of the fluid passage 3 - 4 a of the heat carrier, which contacts with the cool fluid;
  • each group of heat carrier shares the same enclosed vacuum chamber 3 - 2 and the heat transfer medium 3 - 3
  • the cross section of the thin-wall fluid passage can be of other shapes, such as round shape, polygonal shape, dentiform shape or other geometric shapes.
  • At least one plane of the shell 3 - 1 embedded with the liquid absorption cartridge 3 - 5 should be made into a plain heat absorption end matching the plane of the heat source and placed on the top of the heat source to take in heat.
  • the shell transfers the heat to the heat transfer medium 3 - 3 in the enclosed vacuum chamber 3 - 2 , the heat transfer medium takes in the heat or rapid evaporate to dispel the heat, and the heat is transferred to the cool fluid in the fluid passage 3 - 4 a through the thin-wall of the pipes with rectangle cross section and finally taken away by the cool fluid.
  • the whole cooling surface Since the cooling area is increased and the heat transfer medium 3 - 3 is placed in a position that is nearest to the heat source, and by taking the advantages of phase change of fluid and the super heat transfer process of heat efficient heat transfer substances, the whole cooling surface has an even distribution of temperature and every unit cooling area can exert its function to an utmost extent, which is unrivalled by any other coolers with similar structure.
  • Application Example 4 is a kind of integrated heat pipe applicable to integrated heat pipe coolers with a mirror image structure including a cylinder shell with even distribution of 9 pipes and a base for cooling CPU of computers, or high-power power electronic components.
  • the heat absorption end of the shell 4 - 1 is a thin-wall structure made of hollow rectangle plate and its opposite end has the mirror image, which enables the connection of inner chamber of the fluid passage 4 - 4 of the 9 groups of cylinder thin-wall pipes and connection of the enclosed vacuum chamber;
  • the internal surface of each group of heat carrier is the inner chamber of the heat carrier 4 - 4 , and is connected with the enclosed vacuum chamber 4 - 2 and is the extension to the enclosed vacuum chamber 4 - 2 ;
  • the outer surface of each group of heat carrier is the cooling surface of the fluid passage 4 - 4 a of the heat carrier 4 - 4 , which contacts with the cool fluid.
  • each group of heat carrier shares the same enclosed vacuum chamber 4 - 2 and the heat transfer medium 4 - 3 in the chamber, and each group of heat carrier 4 - 4 is both independent and connected with each other; the enclosed vacuum chamber 4 - 2 is vacuumed and filled in the heat transfer medium 4 - 3 ; in order to guarantee normal heat transfer in an inclining state, when applying phase change heat transfer fluids, the interior of the enclosed chamber 4 - 2 is embedded with the liquid absorption cartridge 4 - 5 .
  • At least one part of the shell 4 - 1 should be made into a plain heat absorption end matching the plane of the heat source and placed on the top of the heat source to take in heat.
  • the shell transfers the heat to the heat transfer medium of the 4 - 3 in the enclosed vacuum chamber 4 - 2 , the heat transfer medium takes in the heat or rapid evaporate to dispel the heat, and the heat is transferred to the cool fluid in the fluid passage 4 - 4 a through the thin-wall of the cylinder pipes and finally taken away by the cool fluid.
  • the whole cooling surface Since the cooling area is increased and the heat transfer medium 3 - 3 is placed in a position that is nearest to the heat source, and by taking the advantages of phase change of fluid and the super heat transfer process of heat efficient heat transfer substances, the whole cooling surface has an even distribution of temperature and every unit cooling area can exert its function to an utmost extent.
  • Application Example 5 is a kind of integrated heat pipe applicable to crystallize for continuous ingot casting systems with continuous casting and rolling process in the metallurgy industry.
  • the heat absorption chamber 5 - 1 a which runs through the end plates at both ends of the shell 5 - 1 serves as the heat absorption end and contacts with the graphite sleeve 5 - 12 to take in the heat from the heat source, and the heat is transferred to the heat transfer medium 5 - 3 , which absorbs the heat or evaporates to dispel the heat, and the heat is transferred to the cool fluid in fluid passage 5 - 4 a through the thin wall pips with round cross section and finally taken away by the cool fluid, which enable the hot fluid that contacts with the graphite sleeve to rapidly freeze to molding.
  • the cross section of the fluid passage 5 - 4 a can also be of other geometric shapes, such as rectangle shape, polygon shape, dentiform shape etc.
  • An auxiliary fluid passage 5 - 8 is built between the upper surface and lower surface of the shell 5 - 1 and is connected with the abovementioned fluid passage 5 - 4 a , and it is equipped with an entrance 5 - 9 ;
  • Application Example 6 is a kind of heat pipe applicable to integrated heat pipe cold modules for producing bulk metal materials in a rapid solidification process. No other cooling sources or additional assistant cooling device is required for this integrated heat pipe. It can be used singly or by connecting up two pieces together.
  • the shell 6 - 1 and its heat absorption end 6 - 1 a enclose the heat container 6 - 4 b within the enclosed chamber 6 - 2 which is vacuumed and filled with some heat transfer medium 6 - 3 to form an integrated heat pipe with a heat container.
  • the structure of the heat container 6 - 4 b can be made metal foil, sheet, filament, wire in honeycomb shape, flocculent, gunny fiber like, film, or spiral curled flake or lapped layers, thin-wall pipe in set or even the combination of these forms.
  • Part of the shell 6 - 1 serves as the heat-in plane.
  • the outer rim of the enclosed vacuum chamber 6 - 2 and the inner wall surface of the heat-in plane should be embedded with the liquid absorption cartridge 6 - 5 when phase change of the heat transfer medium is used to transfer heat.
  • Single heat pipe or double heat pipes or even multiple heat pipes integration may be used in this invention.
  • a template made of materials with high heat conducting coefficient, such as red copper, should be set between the heat absorption end of the heat pipe and another end plate made of materials with high heat conducting coefficient, such as red copper, and the heat absorption end, the end plate and the template should be pieced together with bolts.
  • a hole is engraved and a passage for melting metal and an exhaustion passage are set aside, and the heat absorption end, the end plate and the template are engraved to form a heat chamber 6 - 1 a .
  • Application Example 7 is a kind of heat pipe applicable to rotating integrated pipe-bundle heat pipe roller for producing metal strips through rapid solidification process.
  • the outer surface of the rotary cylinder shell 7 - 1 that serves as the heat absorption end contacts with the heat sources and takes in heat, and then transfers the heat to the heat transfer medium 7 - 3 in the enclosed vacuum chamber 7 - 2 , where the heat is absorbed by the heat transfer medium or swiftly diffused by the evaporation of the heat transfer medium, and then the heat can be conveyed to the cold liquid in the liquid passage 7 - 4 a by each group of the round section thin-wall pipe, and finally the heat of the heat sources will be taken away by the cold liquid to make the hot metal liquid contacting with the surface of the cylinder shell 7 - 1 solidify swiftly.
  • the section of the liquid passage 7 - 4 a may be of other shapes, such as rectangle shape, dentiform shape, etc.
  • An auxiliary fluid passage 7 - 8 is built at both ends of the shell and is connected with the abovementioned fluid passage 7 - 4 a , and it is equipped with an entrance 7 - 9 for in exit and entrance of fluid.
  • the shell 7 - 1 is mounted on the rotary axis, making this pipe bundle-melting roller a rotator.
  • the section of the heat absorption chamber 10 - 1 a can be of other geometric shapes, such as round, rectangle, polygonal, dentiform shape, or the combination of these shapes.
  • the vertical section of the heat absorption end can be of an extended type, or other geometric shapes that suitable for turning.
  • the shape the thin-wall fluid passage 7 - 4 a can also be of other geometric shapes, such as rectangle shape, polygonal shape, dentiform shape etc.
  • This invention will have specific heat transfer mechanism when liquid medium is used; their features are as follows:
  • FIG. 8 illustrates an integrated heat pipe of this Application example 8, an internal tooth form chamber (or may be called the enclosed corrugated thin-wall configuration) rotating integrated heat pipe roller used for the preparation of instant metal thin strip and the metal strip of the continuous casting and rolling processes in metallurgical industry.
  • the cross section of the heat absorption end 8 - 1 of the heat pipe shell is round and its vertical section is a rectangle, and the heat absorption end is set on the lateral side of the closed chamber 8 - 2 ;
  • the heat carrier 8 - 4 is set inside the enclosed vacuum chamber 8 - 2 which is composed by cylindrical section shell 8 - 1 and the end plate of shell 8 - 6 ;
  • heat carrier 8 - 4 is composed of 12 sets(or one set of 12 tooth-like internal dentiform shape chamber section thin-wall pipes) of the thin-wall liquid passage 8 - 4 a which run through the both ends of the shell end plate 8 - 6 ; each tooth internal-wall side of the internal dentiform shape chamber section thin-wall pipe is an internal chamber of heat carrier 8 - 4 that is set inside the enclosed vacuum chamber 8 - 2 and communicates with each other; the outer wall surface of each internal dentiform shape
  • the heat absorption end of lateral side surface of the rotating cylindrical shell 8 - 1 contacts heat sources and absorbs heat, and then transfers the heat to the heat transfer medium 8 - 3 within the same enclosed vacuum chamber 8 - 2 at the same time, and there heat can be absorbed by the heat transfer medium or swiftly diffused by the evaporation of the heat transfer medium, and then the heat can be conveyed to the cold liquid within the liquid passage 8 - 4 a by each set of the round section thin-wall pipe, and finally the heat will be taken away by the cold liquid to make the hot liquid on the surface of the contacted round chamber 8 - 1 solidified swiftly.
  • Internal tooth-shape chamber section thin-wall pipe may constitute the section of the liquid passage 8 - 4 a in a ragged way.
  • An assistant liquid passage 8 - 8 which has exit-entrance 8 - 9 for liquid, is set at the right and left end plates of the shell 8 - 1 that communicates the abovementioned liquid passage.
  • the chamber 8 - 1 will be installed on the rotating axis to make the pipe bundle melt rotating roller to be a rotating body.
  • the vertical section of the heat absorption end 7 - 1 of the heat pipe shell may have a drum type shape, or other geometric configurations that are suitable for rotating operation.
  • the section of the thin-wall liquid passage 7 - 4 a may have other geometric configurations, such as rectangle, polygon, tooth form, etc.
  • This invention includes a specific heat transfer mechanism when liquid medium is used; its features are as follows:
  • Application Example 9 is a kind of reversed cone nozzle with a radial in-line finned structure applicable to plasma welding and cutting nozzle.
  • the cross section of the heat-absorbing chamber 9 - 1 a of the shell 9 - 1 may have other shapes, such as rectangle, polygon, etc.
  • an outer shell 9 - 10 is nestled closely to the outer rim of the corrugated thin-wall liquid passage 9 - 4 a.
  • the corrugated thin-wall liquid passage 9 - 4 a may have other curved surface, such as radial bent fins, etc. To further expand the cooling surface of the heat pipe, some fins that closely contact with the passage walls are to be mounted between the corrugated fin thin-wall fluid passages 9 - 4 a that are adjacent to each other.
  • Connecting screw thread that uses to connect with externally mounted equipments will be prepared on the shell 9 - 1 .
  • the enclosed chamber 9 - 1 a of the shell 9 - 1 transfers the absorbed heat by its wall surface to the heat transfer medium 9 - 3 in the closed vacuum chamber 9 - 2 , the heat transfer medium absorbs the heat or evaporates to rapidly dispel the heat, and then the heat is transferred to the lateral side fluid passage 9 - 4 a through the wall surface of the corrugated radial in-line finned thin-wall and finally taken away by the cool fluid.
  • the whole cooling surface Since the cooling area is increased and the heat transfer medium 9 - 3 is placed in a position that is nearest to the heat source, and by taking the advantages of phase change of fluid and the super heat transfer process of heat efficient heat transfer substances, the whole cooling surface has an even distribution of temperature and every unit cooling area can exert its function to an utmost extent, which is unrivalled by any other nozzles with similar structure and nozzles with straight heat pipe structure.
  • Application Example 10 is a kind of complex section integrated heat pipe heat exchanger applicable to the heat exchange between two fluid mediums.
  • the hot fluid runs into the heat absorbing chamber 10 - 1 a through the exit-entrance 10 - 10 and the assistant fluid passage 10 - 12 and then it is transferred by the wall surface to the heat transfer medium 10 - 3 in the closed vacuum chamber 10 - 2 , the heat transfer medium absorbs the heat or evaporates to rapidly dispel the heat, and then the heat is transferred to the lateral side fluid passage 10 - 4 a through each group corrugated radial in-line finned thin-wall and finally taken away by the cool fluid.
  • the whole cooling surface Since the cooling area is increased and the heat transfer medium 10 - 3 is placed in a position that is nearest to the heat source, and by taking the advantages of phase change of fluid and the super heat transfer process of heat efficient heat transfer substances, the whole cooling surface has an even distribution of temperature and every unit cooling area can exert its function to an utmost extent, the heat exchange among the fluid within the small volume can be realized, and the heat transfer efficiency shall be raised accordingly.
  • this heat pipe cooler shall be used vertically or in a certain declining angle when fluid-working medium is employed.
  • the section of the heat-absorbing chamber 10 - 1 a may have other geometric configurations, such as round, rectangle, polygonal, tooth form, or their combination shape.
  • the section of the thin-wall fluid passage 10 - 4 a may be processed as other geometric configurations, such as radial bent finned shape or some combinations of round, rectangle, polygonal, tooth form, etc. thin-wall closed pipe fluid passage configurations that run through both end covers 10 - 1 of the shell correspondingly.
  • Application Example 1 is a kind of heat pipe applicable to integrated heat pipe rotors with blended shape plane for generators and motors.
  • Its feature is the outer round shell is the heat absorption end 11 - 6 , three groups of radial, in-line, finned thin wall cambers 11 - 6 a to take in heat, the heat absorption end is on the outer side of the enclosed vacuum chamber, the heat carrier 11 - 4 that runs through the two end covers of the shell is the thin-wall fluid passage 11 - 4 a with radial distribution of 16 long fins matching with the axis of the heat pipe; the inner side of each fin is the internal chamber of the heat carrier 11 - 4 , and is connected with the vacuum chamber 11 - 2 and the extension to the vacuum chamber 11 - 2 ; the outer side of each fin is cooling surface of the fluid passage 11 - 4 a of the heat carrier 11 - 4 , which contacts with the cool fluid; each group of the heat carrier shares an enclosed chamber 11 - 2 and
  • the thin-wall heat-in camber 11 - 6 a with radial and in-line arrangement of fins can be set up according to the heat source of the rotor, the heat generated by the heat source of the rotor is transferred to the heat transfer medium 11 - 3 in the enclosed chamber 11 - 2 through the thin-wall heat-in camber 11 - 6 a with radial and in-line fins, the heat transfer medium 1 - 3 then take in the heat and evaporates to dispel the heat, and the heat is transferred to the cool fluid in the fluid passage 4 - 4 a through each group of the finned thin-wall and finally taken away by the cool fluid.
  • the whole cooling surface Since the cooling area is increased and the heat transfer medium 3 - 3 is placed in a position that is nearest to the heat source, and by taking the advantages of phase change of fluid and the super heat transfer process of heat efficient heat transfer substances, the whole cooling surface has an even distribution of temperature and the heat transfer effect is high, which is contributes to increasing the cooling effect and safety and reliability of the rotor.
  • the shape of the thin-wall fluid passage 11 - 4 a can also be of other geometric shapes, such as radial curved finned shape etc., or enclosed thin-wall pipe fluid passage structure enclosed by several groups of pipes with round shape, rectangle shape, polygon shape, dentiform shape etc. that run through the two end covers of the shell 11 - 1 .
  • This invention takes the advantages of diversity of design in heat absorption ends of the shell of heat pipe and placement of heat transfer medium in the enclosed chamber in a position that is nearest to the heat-in surface to reduce contact of heat source and heat resistance; set up of the heat carrier either on the outer side, inner side or outer and inner sides of the enclosed chamber to obtain the largest cooling surface area in the smallest volume; the super heat transfer ability of the heat transfer medium to carry heat to the near place of the heat carrier to the cooling end to increase heat transfer speed and ability.
  • This invention is both applicable to contacting heat sources and fluid medium heat sources and offers such advantages as low comprehensive heat resistance, large cooling area and high heat transfer speed etc.
  • This invention also has the advantages of a variety of applications in a number of engineering fields, including cooling for solids that contact with heat sources based on the principle of heat transfer, such as cooling of CPU and cards of computers and high-power power electronic components etc; rotating heat source of rotating shafts such as cooling rollers for producing metal strips with rapid solidification process, rollers and casting wheels for continuous casting in metallurgy industry, motor rotors and turbine rotors etc.; crystallizing for continuous casting in metallurgy industry and producing metal wires with rapid solidification process; rotors in engines, motors and similar motorized mechanical rotors; producing bulk metal materials of non-crystal, crystallite or quasi-crystal state, etc. with a rapid solidification process in new type metal materials industry; plasma welding and cutting torches, plasma nozzles for spraying paints, nozzles of electron beam welding gun, nozzles of high-power arc welding gun etc.
  • rotating heat source of rotating shafts such as cooling rollers for producing metal strips with rapid solidification process, roller

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CNB021090300A CN1195196C (zh) 2002-01-10 2002-01-10 集成式热管及其换热方法
CN02109030.0 2002-01-10
PCT/CN2003/000018 WO2003058144A1 (fr) 2002-01-10 2003-01-10 Caloduc integre et procede d'echange de chaleur

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KR (1) KR100915619B1 (ja)
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