WO2002039005A1 - Joint permettant de raccorder un tube de metal et un tube en verre et son utilisation dans un systeme de collecte sous vide d'energie solaire de chaleur - Google Patents

Joint permettant de raccorder un tube de metal et un tube en verre et son utilisation dans un systeme de collecte sous vide d'energie solaire de chaleur Download PDF

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Publication number
WO2002039005A1
WO2002039005A1 PCT/CN2000/000340 CN0000340W WO0239005A1 WO 2002039005 A1 WO2002039005 A1 WO 2002039005A1 CN 0000340 W CN0000340 W CN 0000340W WO 0239005 A1 WO0239005 A1 WO 0239005A1
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WO
WIPO (PCT)
Prior art keywords
glass
metal
connector
sealed
tube
Prior art date
Application number
PCT/CN2000/000340
Other languages
English (en)
Chinese (zh)
Other versions
WO2002039005A8 (fr
Inventor
Hongchuan Ge
Original Assignee
Hongchuan Ge
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hongchuan Ge filed Critical Hongchuan Ge
Priority to AU2000278997A priority Critical patent/AU2000278997A1/en
Priority to PCT/CN2000/000340 priority patent/WO2002039005A1/fr
Priority to CNB008199396A priority patent/CN1176313C/zh
Publication of WO2002039005A1 publication Critical patent/WO2002039005A1/fr
Publication of WO2002039005A8 publication Critical patent/WO2002039005A8/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L49/00—Connecting arrangements, e.g. joints, specially adapted for pipes of brittle material, e.g. glass, earthenware
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/0072—Joints for pipes of dissimilar materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/30—Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S2025/6012—Joining different materials
    • F24S2025/6013—Joining glass with non-glass elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

Definitions

  • the invention relates to a glass-to-metal sealing technology, in particular to a glass-to-metal sealing for a solar vacuum heat collecting tube.
  • Solar energy is an inexhaustible source of green energy.
  • a solar energy vacuum heat collecting tube is usually used to effectively collect the solar heat.
  • This solar vacuum heat collecting tube includes a glass tube, and a metal heat sink is provided in the glass tube.
  • the best technical solution is to put the inside of the glass tube in a vacuum state to minimize the loss of thermal energy. At least one end of the metal heat sink protrudes from the outer end of the glass tube, and is connected to a device required for thermal energy, such as a water tank.
  • a device required for thermal energy such as a water tank.
  • the above flame sealing method is based on the fact that the thermal expansion coefficients of glass and metal are relatively close, so the selection of glass tubes and metal materials is high.
  • the glass tube materials that can be provided by existing glass tube manufacturers in China have not been able to find a metal material that can match them, so the above-mentioned fusion sealing process cannot be used to produce solar vacuum heat collection tubes.
  • the Beijing Solar Energy Research Institute has proposed a hot compression sealing technology after years of research, that is, Chinese invention patent 93101627.4. This patent discloses a thermocompression sealing technology, which can be used to lower the glass flange end face of a heat collecting tube at a lower temperature.
  • a solid seal is made between the end cap and the metal end cap, that is, the welding material is sealed by appropriate pressure while the material is kept in a state.
  • Hot compression sealing technology is a special welding method in the solid-state welding technology of materials.
  • the key to solving the problem is to heat and pressurize the seal, causing a small amount of plastic deformation at the connection, and then interatomic Mutual diffusion to achieve sealing.
  • a key problem to be solved by the hot compression sealing technology is to apply an impact pressure of 40-150kg / cm 2 to the end surface of the glass tube seal after heating the sealing portion, and the impact time under normal circumstances 5 s. Because the length and diameter of the glass tube are relatively large, in order to prevent the slender glass tube from being crushed, the impact pressure must be accurately controlled. In addition, the shape of the glass tube also has extremely strict requirements.
  • the solar vacuum heat collecting tube is a kind of slender tube. No matter it adopts heat, pressure sealing technology or flame welding technology, the produced heat collecting tube is sealed on the glass tube: ', which has been processed in advance. Therefore, production During the process, the glass tube must be carefully transferred to various stations. Due to the fragile nature of the glass tube, the required production line is extremely large and the structure is complicated, which increases the production cost of the heat collecting tube.
  • the length of the vacuum heat collecting tube is limited.
  • the pressure on the glass tube must be perpendicular to the end face of the glass tube.
  • the current method is to extend the pressure station of the production line to the ground. Therefore, it is necessary to have a depth at the station that extends at least as long as the glass tube.
  • the product specifications are limited. From another perspective, the common defect of products manufactured by the production line is that the specifications are single, that is, when the production line is determined, the diameter, length specifications and structure of the product are determined, or Limited to a small range, and it is difficult to make specifications and conclusions again Structural changes or additions.
  • the purpose of the present invention is to provide a glass-metal pair transitional connection device, which uses the transitional connection structure to greatly simplify the glass-to-metal sealing process of a vacuum heat collecting tube, simplify its production equipment, and therefore reduce the manufacturing cost of a vacuum heat collecting tube. .
  • Another object of the present invention is to provide a glass-metal secondary transition connection device.
  • the specification and structure change of the vacuum heat collecting tube are simpler and easier, and meanwhile, The earth reduces the waste loss rate of the vacuum heat collecting tube.
  • a glass-metal secondary transition connection device is composed of a glass connection member and a metal connection member, and the glass connection member and the metal connection member are provided with at least one corresponding through hole, and along the through hole The perimeter of the glass connector is sealed together; the glass connector is provided with a connection end that can be sealed with a glass tube, and the metal connector is provided with a connection end that can be sealed with a metal heat sink.
  • the sealing methods of the glass connector and the metal connector of the present invention can be implemented as two types: heat-pressing and flame welding.
  • the glass connector can have different shapes suitable for sealing with glass tubes.
  • the metal connecting member may have different shapes suitable for sealing with the heat sink.
  • the basic structure of the solar vacuum heat collecting tube includes a glass tube with an outer layer.
  • the glass tube is provided with a metal heat sink, and the metal heat sink transmits the heat absorbed by the protruding end to the outside of the glass pipe.
  • the glass tube In order to prevent the loss of heat, the glass tube must be in a vacuum state. Therefore, the sealed seal between the metal tube and the glass tube constitutes a key problem in manufacturing a vacuum heat collecting tube.
  • the present invention utilizes a glass-metal secondary transition device with a very simple structure, so that the sealing problem between glass and metal in the manufacturing process of the vacuum tube is turned into the sealing of the same material between metal and metal and between glass and glass Moreover, this metal-to-metal, glass-to-glass sealing can be achieved using conventional techniques, thereby greatly simplifying the true The production process of the empty collector tube, without the need for a large and complicated production line, makes the promotion of solar energy utilization technology possible.
  • the structure of the glass-metal secondary transition connector in the present invention is extremely simple.
  • the glass connector is much simpler in shape than the glass tube, and its volume is much smaller. Therefore, various existing metal and glass sealing technologies can be used. Without the need for complex production processes and large production lines.
  • the flame fusion sealing technology is used, only the material of the small-volume glass connector is selected, and the material selection of the entire glass tube does not have to be selected.
  • the heat-compression sealing technology is used, the glass connector structure is basically disc-shaped. It is the best pressure-bearing structure in itself, and does not have high requirements for heating and pressurization, and because of its small size and easy control, the manufacturing of the glass-metal secondary transition connection device of the present invention does not need to rely on a complex production line .
  • the glass-metal secondary transition connection device of the present invention has a simple structure, manufacturing is easy.
  • conventional glass welding technology is used to directly seal the glass tube, and it is no longer necessary to process the flange to withstand the punching pressure on the glass tube, which simplifies the structure of the glass tube and eliminates the need for the glass tube during operation. It is placed vertically, so the length of the glass tube can be extended as required, and the manufacturing cost is reduced, which will be more conducive to expanding the scale of solar energy utilization.
  • the glass-metal secondary transition connecting device of the present invention since the glass-metal secondary transition connecting device of the present invention has a simple structure and is easy to manufacture, it is very convenient to retrofit the design. Therefore, it is extremely easy to retrofit the vacuum heat collecting tube without adding any additional cost. Can meet different usage needs.
  • the sealing problem between the metal and the glass tube in the manufacture of the vacuum heat collecting tube is converted into the sealing between the metal connector and the glass connector, so the loss of waste caused by the sealing is greatly reduced.
  • FIG. 1 is a schematic diagram of a first implementation manner of Embodiment 1 of the present invention
  • FIG. 1 is a schematic diagram of another implementation manner of Embodiment 1 of the present invention.
  • FIG. 3 is a schematic diagram of a third implementation manner of Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram of Embodiment 2 of the present invention.
  • FIG. 5 is a schematic diagram of a first implementation manner of Embodiment 3 of the present invention.
  • FIG. 6 is a schematic diagram of a second implementation manner of Embodiment 3 of the present invention.
  • FIG. 7 is a schematic diagram of a third implementation manner of Embodiment 3 of the present invention.
  • FIG. 8 is a schematic diagram of a fourth implementation manner of Embodiment 3 of the present invention.
  • FIG. 9 is a schematic diagram of Embodiment 4 of the present invention.
  • FIG. 10 is a schematic diagram of a first implementation manner of Embodiment 5 of the present invention.
  • FIG. 11 is a schematic diagram of a second implementation manner of Embodiment 5 of the present invention.
  • FIG. 12 is a schematic diagram of a third implementation manner of Embodiment 5 of the present invention.
  • FIG. 13 is a schematic diagram of a first implementation manner of Embodiment 6 of the present invention.
  • FIG. 14 is a schematic diagram of a second implementation manner of Embodiment 6 of the present invention.
  • FIG. 15 is a schematic diagram of a third embodiment of Embodiment 6 of the present invention.
  • FIG. 16 is a schematic diagram of a fourth implementation manner of Embodiment 6 of the present invention.
  • FIG. 17 is a schematic diagram of a first implementation manner of Embodiment 7 of the present invention.
  • FIG. 18 is a schematic diagram of a second implementation manner of Embodiment 7 of the present invention.
  • FIG. 19 is a schematic diagram of a third embodiment of Embodiment 7 of the present invention.
  • FIG. 20 is a schematic diagram of Embodiment 8 of the present invention.
  • FIG. 21 is a schematic structural diagram of Embodiment 9 of the present invention.
  • FIG. 22 is a schematic structural diagram of Embodiment 10 of the present invention.
  • FIG. 23 is a schematic structural diagram of Embodiment 11 of the present invention.
  • FIG. 24 is a schematic structural diagram of Embodiment 12 of the present invention.
  • FIG. 25 is a schematic structural diagram of Embodiment 13 of the present invention.
  • FIG. 26 is a schematic structural diagram of Embodiment 14 of the present invention.
  • FIG. 27 is a schematic structural diagram of Embodiment 15 of the present invention.
  • FIG. 28 is a schematic structural diagram of Embodiment 16 of the present invention.
  • the glass-metal secondary transition connection device of the present invention is formed by sealing the glass connection member 1 and the metal connection member 1.
  • the glass connection member 1 is provided with at least one through hole 11.
  • the metal connecting piece 2 is provided with a corresponding through hole 21, and the glass connecting piece 1 and the metal connecting piece 2 are sealed together; the glass connecting piece 1 is provided with a connection end that can be sealed with the glass tube 4, and the metal connecting piece 1 is provided with The connection end can be sealed at the metal heat sink 5.
  • a plane 12 is provided along the periphery of the through hole 11 of the glass connector 1, and the metal connector 2 is correspondingly arranged.
  • the shape of the glass connector 1 in the glass-metal secondary transition connection device of the present invention may be designed according to the cross-sectional shape of the glass tube.
  • the metal connection end of the metal connector 2 may be a tubular neck along the periphery of the through hole 21. 23.
  • the sealing end sealed with the glass connecting member 1 may be a disc body 24, and the protruding end of the heat absorbing body 5 may be tightly sealed to the tubular neck 24 along the periphery.
  • the tubular neck 24 having a certain length facilitates the positioning of the heat absorbing body 5 and forms a stable support for the heat absorbing body 5.
  • the glass connection end of the glass connection member 1 is a flange 13 which is downward along the periphery, and the flange 13 of the glass connection member 1 and the end face of the glass tube 4 can be sealed.
  • the metal connecting member 2 and the glass connecting member 1 can be sealed by a conventional thermocompression sealing method.
  • the plane 12 of the glass connecting member 1 and the metal connecting member 2 are sealed.
  • the flat surfaces 22 are heat-sealed together by solder 3. Since the glass connector 1 is basically a disk-shaped body with a relatively small volume, this structure is convenient for heating and has excellent pressure-bearing capacity. Therefore, the process requirements for heat-sealing are relatively higher than those for glass pipes in the prior art. The process requirements for sealing are much lower.
  • This embodiment can also be implemented as shown in FIG. 2.
  • the plane 12 of the glass connector 1 is provided on the lower end surface of the glass connector 1.
  • the diameter of the through hole 11 of the glass connector 1 should be larger than that of the metal connector. 2
  • the outer diameter of the tubular neck 23, which passes through the through hole 11, the plane 12 of the glass connector 1 and the plane 22 of the metal connector 2 are heat-sealed together by solder 3, thereby completing the glass Sealing of the connecting member 1 and the metal connecting member 1.
  • the metal connecting member 2 and the glass connecting member 1 can also be sealed by a conventional flame welding method.
  • the diameter of the through hole 11 of the glass connector 1 is large.
  • the disc body 24 of the metal connector 2 can be inserted into the through hole 11 and flame-welded along the periphery of the disc body 24 to the ⁇ ⁇ ⁇ ⁇ ⁇ 11 ⁇ Inside the through hole 11.
  • the glass-metal secondary transition connection device of the present invention is mainly applied to the manufacture of a solar vacuum heat collecting tube.
  • the flange 13 of the glass connector 1 is used as the glass connection end to seal the glass tube 4.
  • the present invention can also be implemented by using the above-mentioned melting method, but since the volume of the glass connection piece 1 is much smaller than the volume of the glass tube 4, the annealing of the glass connection piece 1 after welding is also similar. Easy to the ground.
  • the metal tube of the heat absorbing body 5 in the glass tube 4 protrudes from the through hole 21 of the metal connector 2 of the device and is sealed to it.
  • the sealing between glass and metal in the prior art is converted into the sealing of the same kind of material between glass and glass, and between metal and metal, and this sealing can be completely realized by mature conventional technology. Therefore, the manufacturing process of the vacuum heat collecting tube is greatly simplified, and a large and complicated production line is no longer needed.
  • the design length and structural modification of the existing solar vacuum heat collecting tubes are limited by their manufacturing equipment and manufacturing processes.
  • the modification design is extremely easy.
  • the design length and diameter of the vacuum heat collecting tube can be extended or increased as required, and the improved design of the structure inside the vacuum tube is simple and easy.
  • the structural principle of the glass-metal secondary transition connection device in this embodiment is the same as that in Embodiment 1.
  • the glass connection 1 and the metal connection 2 are mainly sealed together, and the glass connection 1 and the metal are connected together.
  • the pieces 2 are correspondingly provided with through holes 11 and 21 and are sealed along the periphery of the through holes 11 and 21.
  • the use state and the beneficial effects of this embodiment are the same as those of FIG. 1 in Embodiment 1, and will not be repeated here.
  • the main difference of this embodiment is that the metal connecting end of the metal connecting member 2 is a convex upward along the periphery, the edge 25; the metal connecting member 1 is welded to a metal cover along the periphery of the flange 25, so The extended end of the metal heat sink 5 is sealed in the metal cover.
  • the structural principle of the glass-metal secondary transition connection device in this embodiment is the same as the above embodiment, and is mainly sealed by the glass connection piece 1 and the metal connection piece 2 into one.
  • the glass connection piece 1 Through holes 11 and 21 are provided corresponding to the metal connector 2 and sealed along the periphery of the through holes 11 and 21.
  • the use state and the beneficial effects of this embodiment are the same as those of Embodiment 1, and are not repeated here.
  • the metal connecting end of the metal connecting member 1 is a flange 25 along the periphery upward; the metal connecting member 1 is welded with a metal cover along the periphery of the flange 25, so The extended end of the metal heat sink 5 is sealed in the metal cover.
  • the glass connecting member 1 is substantially flat. As shown in FIG. 5, the lower end surface of the glass connecting end of the glass connecting member 1 may be provided with a convex convex ring 14; the outer diameter of the convex ring 14 may be smaller than the inner diameter of the glass tube 4. During sealing, the glass tube 4 is positioned outside the convex ring 14 and is fused with the glass connector 1.
  • the inner diameter of the convex ring 14 may be larger than the outer diameter of the glass tube 4.
  • the convex ring 14 is positioned inside and is welded with the glass connecting member 1.
  • a recessed stop 15 may be provided around the disc-shaped body of the glass connector 1, and the port of the glass tube 4 is inserted into the stop 15 and positioned to communicate with the glass connector 1. Sealed together.
  • the glass connecting member 1 may also be a glass ring having a certain thickness.
  • One end face 16 of the glass ring and the plane 22 of the metal connecting member 2 are heat-sealed together by solder 3.
  • the other end surface 17 of the glass ring can be sealed with the glass tube 4.
  • the structural principle of the glass-metal secondary transition connection device in this embodiment is the same as that in Embodiment 1.
  • the glass connection piece 1 and the metal connection piece 1 are mainly sealed together, and the glass connection piece 1 and the metal connection are connected together.
  • the pieces 2 are respectively provided with through holes 11 and 21 and are sealed along the periphery of the through holes 11 and 21.
  • the use state and the beneficial effects of this embodiment are the same as those of FIG. 1 in Embodiment 1, and will not be repeated here.
  • the glass connecting member 1 may be a glass ring having a certain thickness, and one end surface 16 of the glass ring and the metal connecting member 2 The planes 11 are heat-sealed together by solder 3, and the other end surface 17 of the glass ring can be sealed with the glass tube 4.
  • the metal connecting member 1 and the metal connecting end of this embodiment are still constituted by the neck portion 23.
  • the structure of this embodiment is shown in FIG. 10 to FIG. 12.
  • the structural principle of the glass-metal secondary transition connection device in this embodiment is basically the same as that of the above embodiment, and is mainly sealed by the glass connector 1 and the metal connector 2.
  • the glass connector 1 is provided with a through hole 11, and the metal connector 2 is provided with a through hole 21 correspondingly, and is sealed along the periphery of the through holes 11 and 21.
  • the use state and the beneficial effects of this embodiment are the same as those of the above embodiment, and are not repeated here. .
  • the metal connecting member 2 may be a metal ring having a certain thickness; the protruding end of the metal heat sink 5 may pass through the through hole 21 of the metal ring and Along The periphery is welded in the through hole 21.
  • a metal cover may be welded from the periphery or the upper end surface without the metal ring.
  • the lower end surface of the glass connecting end of the glass connecting member 1 may be provided with a convex convex ring 14 to constitute the glass connecting end; the outer diameter of the convex ring 14 may be smaller than that of the glass tube.
  • the inner diameter of 4 is when the glass connecting member 1 is sealed with the glass tube 4, the glass tube 4 is positioned outside the convex ring 14 and is sealed with the glass connecting member 1.
  • this embodiment may also be implemented in the following form.
  • the inner diameter of the convex ring 14 may be larger than the outer diameter of the glass tube 4.
  • the convex ring 14 is positioned inside and is welded with the glass connecting member 1.
  • the glass connecting member 1 may also be a glass ring having a certain thickness.
  • One end face 16 of the glass ring and the plane 22 of the metal connecting member 2 are heat-sealed together by solder 3.
  • the other end surface 17 of the glass ring forms a glass connection end and is sealed to the glass tube 4.
  • the structure of this embodiment is shown in FIG. 13 to FIG. 16.
  • the structural principle of the glass-metal secondary transition connection device in this embodiment is basically the same as that of the above embodiment, and is mainly sealed by the glass connector 1 and the metal connector 2.
  • the glass connector 1 is provided with a through hole 11
  • the metal connector 2 is provided with a through hole 21 correspondingly, and sealed along the periphery of the through holes 11 and 21.
  • the usage status and beneficial effects of this embodiment are the same as those of the above embodiment, and will not be repeated here.
  • the disc-shaped body of the glass connecting member 1 may be provided with an upward flange 18 to form a glass connecting end.
  • the four ports of the glass tube can be positioned at the flange 18 and sealed together.
  • the metal connecting member 2 may be implemented as a structure in which the metal connecting end is a flange 25 along the periphery; the metal connecting member 2 is welded to a metal cover along the periphery of the flange 25. Metal connecting ends are formed together, and the protruding ends of the metal heat absorbing body 5 are sealed in the metal cover.
  • the metal connecting member 1 may also be implemented as the following structure.
  • the metal connecting end of the metal connecting member 2 may be a tubular neck 23 along the periphery of the through hole 21.
  • the sealing end sealed by the connecting member 1 may be a disc body 24, and the protruding end of the heat absorption body 5 may be welded to the tubular neck 24 along the periphery.
  • the metal connecting member 2 and the glass connecting member 1 may be heat-sealed on the upper or lower end surface of the glass connecting member 1; or as shown in FIG. 16, the metal connecting member 1 passes through the through hole 11 of the glass connecting member 1.
  • the method of performing flame welding in the through hole 11 is used; for the specific sealing method of the metal connecting member 2 and the glass connecting member 1, refer to the description in Embodiment 1, and details are not described herein again.
  • the structural principle of the glass-metal secondary transition connection device in this embodiment is basically the same as that in Embodiment 1.
  • the glass connection piece 1 and the metal connection piece 2 are sealed together to form a glass connection.
  • the component 1 and the metal connecting component 2 are respectively provided with through holes 11 and 21 and are sealed along the periphery of the through holes 11 and 21.
  • the use state and the beneficial effects of this embodiment are the same as those of FIG. 1 in Embodiment 1, and are not repeated here.
  • the difference between this embodiment and the foregoing embodiment is that in this embodiment, the metal connector 2 and the glass connector 1 are sealed by thermocompression sealing, and a flat surface 19 is provided on both the upper and lower end surfaces of the glass connector 1 And plane 20, the two metal connecting members 2 can be heat-compressed on plane 19 and plane 20, respectively, to make the sealing structure more reliable.
  • the upper and lower metal connecting members 2 are heat-sealed on the plane 19 and the plane 20, respectively.
  • the metal connecting end of the upper and lower metal connecting members 1 may be a tubular neck 23 along the periphery of the through hole 21, and the sealing end sealed with the glass connecting member 1 may be a disc body 24, and the protruding end of the heat absorbing body 5 may be The inner wall of the upper and lower tubular neck portions 24 is welded along the periphery.
  • the upper and lower metal connecting members 2 may be in the shape of metal rings, and are heat-sealed on the plane 19 and the plane 20, respectively.
  • the heat absorbing body 5 can pass through the through hole 21 of the upper and lower metal connecting members 2 and the through hole 11 of the glass connecting member 1 and is welded into the through holes along the periphery of the through hole 21 of the upper and lower metal connecting members 1 respectively.
  • the upper and lower metal connecting members 2 may also have the following shape.
  • the metal connecting ends of the upper metal connecting members 2 are flanges 25 along the periphery; the metal connecting members 1 are along the flanges.
  • the periphery of 25 is welded with a metal cover, and the protruding end of the metal heat sink 5 is sealed in the metal cover.
  • the lower metal connector 2 is in the shape of a metal ring.
  • the protruding end of the metal heat sink 5 is welded to the metal ring along the periphery of the middle through hole 21 of the metal ring.
  • the shape of the glass connecting member 1 may be changed to other shapes in the above embodiments, and metal connecting members having different structures may be combined, and details are not described herein again.
  • FIG. 20 Please refer to FIG. 20 for the structure of this embodiment.
  • the structural principle is basically the same as that of Embodiment 1.
  • the glass connector 1 and the metal connector 2 are sealed together into one body.
  • the glass connector 1 and the metal connector 2 are provided with through holes 11 and 21 correspondingly, and along the through hole 11 and n are sealed around.
  • the use state and beneficial effects of this embodiment are the same as those in FIG. 1 in Embodiment 1, and are not repeated here.
  • the glass connector 1 is a glass ring, which is composed of a section of glass tube 19, and the metal connector 2 is composed of a metal cover 26.
  • the upper end of the glass tube 19 is sealed with the periphery of the metal cover 26.
  • the metal cover 26 is provided with two through holes 21 that can communicate with the inner hole of the glass tube 19, and the two protruding ends 5 of the heat sink in the heat collecting tube extend through the two through holes. Out and weld with it.
  • the glass tube 19 and the metal cover 26 can be sealed together by solder 3 as shown in FIG.
  • the other end of the glass tube 19 forms a glass connection end and the glass tube 4 of the heat collecting tube is sealed together.
  • the glass tube 19 and the metal cover 26 of this embodiment may also adopt a flame seal structure. This embodiment is characterized by a simpler structure.
  • the glass connecting member 1 and the metal connecting member 2 in each of the above embodiments may further be provided with two or more through holes 11 and 21.
  • the above embodiments are only used to describe the glass-metal secondary transition connection device of the present invention, but not intended to limit the glass-metal secondary transition connection device of the present invention.
  • the glass-metal pair transition connecting device of the present invention can be designed into other shapes according to the same structural principle as the previous embodiment, and will not be described in detail here.
  • the glass-metal secondary transition connection device of the present invention is mainly applied to a solar vacuum heat collecting tube.
  • This embodiment shows a first application embodiment of the glass-metal secondary transition connection device of the present invention.
  • the solar vacuum heat collecting tube of the present invention includes a glass tube 4, and the glass tube 4 is provided with a metal heat absorbing body 5.
  • the metal heat absorbing body 5 is composed of a heat pipe 51 and a heat absorbing plate 52.
  • the heat absorbing plate 52 is welded to a heat pipe 51 provided along the center of the glass tube 4, and a heat absorbing layer is attached to the heat absorbing plate 52.
  • the heat pipe 51 is filled with a medium, and the heat from the solar energy absorbed by the heat absorption plate 52 is led out of the glass pipe 4.
  • one end of the glass tube 4 is a closed end, and the other end is an open end 41.
  • a glass-metal secondary transition connection device is connected to the open end 41.
  • the structure of the glass-metal pair transition connection device is as described above As shown in Embodiment 1, the glass connecting member 1 and the metal connecting member 2 are sealed, and the glass connecting end of the glass connecting member 1 is a flange 13 along the periphery, and the flange 13 of the glass connecting member 1 can be used. Seal with glass tube 4 end face.
  • the glass connecting member 1 is provided with a through hole 11.
  • the metal connector 2 is sealed on the flat surface 12 around the through hole 11 of the glass connector 1.
  • the metal connector 2 is provided with a through hole 21 corresponding to the through hole 11 of the glass connector 1.
  • the metal connector 2 is provided with a plane 22 and a plane 12 around the through hole 11 of the glass connector 1 is sealed. The sealing between the two can be performed by flame welding or by hot pressing.
  • the glass tube 4 is sealed to the periphery of the flange 13 of the glass connection member 1 by its open end 41, and the heat pipe 51 in the metal heat sink 5 is sealed to the metal connection member 2, and the glass tube 4 is sealed inside. Vacuum.
  • the sealing of the glass connecting piece 1 and the glass tube 4 and the sealing of the metal connecting piece 2 and the metal heat pipe 4 are all sealing between the same materials, which can be realized by mature conventional technology, and will not be described here. .
  • the sealing structure between the metal and the glass of the solar vacuum heat collecting tube of the present invention is realized by using a glass-metal secondary transition connection device. Therefore, the manufacturing process of the vacuum tube itself is greatly simplified without the need for a complicated and large production line. The manufacturing difficulty of the glass tube 4 is greatly reduced.
  • the glass-metal secondary transition connection device in this embodiment may also adopt other structures defined by the present invention.
  • the difference between this embodiment and Embodiment 9 is that the metal heat absorbing body 5 in the glass tube 4 is composed of a metal tube 53 and a heat absorbing plate 52, and the metal tube 53 is composed of an inner tube 531 and an outer tube.
  • the tubes 532 are combined, and the heat absorbing plate 52 is connected to the outer tube 532.
  • the other structures of this embodiment are the same as those of Embodiment 9, and are not repeated here.
  • the working principle of this embodiment is that the heat transfer medium flows in from the inner pipe 531 of the metal pipe 53 and then flows out of the outer pipe 532. In this process, the solar heat absorbed by the heat absorption plate 52 is led out of the glass through the heat transfer medium. Tube 4.
  • the hole diameter of the through hole of the glass-metal secondary transition connection device is appropriately enlarged.
  • This modified design of the tube can realize the structural improvement of the vacuum heat collecting tube of this embodiment.
  • this embodiment Since the structure of this embodiment is basically the same as that of Embodiment 9, this embodiment also has the beneficial effects of Embodiment 1.
  • the glass-metal secondary transition connection device in this embodiment may also adopt other structures defined by the present invention.
  • Example 11 The structure of the vacuum heat collecting tube of this embodiment is shown in FIG. 23.
  • the diameter of the glass tube 4 is enlarged, one end is closed, and the other open end 41 is sealed with the glass-metal secondary transition connection device of the present invention.
  • the metal heat absorbing body 5 in the glass tube 4 is composed of a heat absorbing water storage tube 54.
  • a metal tube 541 is provided at the upper end of the heat absorbing water storage tube 54.
  • the metal tube 541 and the metal connection 2 in the glass transition device The other end of the sealed, heat-absorbing water storage tube 54 may be supported on the inner wall of the glass tube 4 by the support 6.
  • the area of the flange 13 of the glass-metal secondary transition connection device is appropriately enlarged, so that a glass tube 4 having a larger diameter can be selected, so as to form a solar water heater with a vacuum-type heat collection tube.
  • the glass-metal secondary transition connection device in this embodiment may also adopt other structures defined by the present invention.
  • the basic structure of the vacuum heat collecting tube of this embodiment is the same as that of Embodiment 11, except that, as shown in FIG. 24, in this embodiment, the glass tube 4 has two open ends 41, and the two open ends 41 Both the glass-metal secondary transition connection device of the present invention can be sealed, and the through holes on the two glass-metal secondary transition connection devices are basically set on the same axis.
  • the metal heat absorbing body 5 provided in the vacuum glass tube 4 in this embodiment is also composed of a heat absorbing water storage tube 54, and both ends of the heat absorbing water storage tube 54 are provided with metal pipes 541.
  • the metal pipes 541 and The metal connector 2 in the glass transition device is sealed, and one end of the metal pipe 541 is an inlet of the heat conducting medium, and the other end of the metal pipe 541 may be an outlet of the heat conducting medium.
  • the heat-conducting medium enters from the inlet end and then flows out from the other end, so as to discharge the heat of the solar energy absorbed by the heat absorption plate 52.
  • the glass-metal secondary transition connection device in this embodiment may also adopt other structures defined by the present invention.
  • this embodiment can use an extremely simple sealing
  • the double-end sealing of the glass tube 4 can be achieved by the joining technology, and the structure of the glass tube 4 in the vacuum heat collecting tube of this structure can be further simplified.
  • the glass tube 4 has two open ends 41, and the two open ends 41 can be sealed with the glass-metal secondary transition of the present invention.
  • the connecting device, the through holes on the two glass-metal pair transition connecting devices are basically arranged on the same axis.
  • the metal heat absorbing body 5 provided in the vacuum glass tube in this embodiment is also composed of a metal pipe 53 and a heat absorbing plate 52, and the metal pipe 53 is provided with two outlets, one end of which is an inlet for a heat conductive medium, and the other end which can be used for heat conduction. Exit of the media.
  • the heat-conducting medium in the metal pipe 53 enters from the entrance end and then flows out from the other end, so as to discharge the heat of the solar energy absorbed by the heat absorption plate 52.
  • the glass-metal secondary transition connection device in this embodiment may also adopt other structures defined by the present invention.
  • this embodiment can use an extremely simple sealing
  • the double-end sealing of the glass tube can be realized by the joining technology, and the structure of the glass tube 4 in the vacuum heat collecting tube of this structure can be further simplified.
  • the vacuum heat collecting tube in this embodiment includes a glass tube 4.
  • One end of the glass tube 4 ′ is closed, and the other end is an open end 41 of the glass tube 4, and is sealed at the open end 41.
  • the glass-metal secondary transition connection device of the present invention is connected.
  • the metal heat absorbing body 5 in the glass tube 4 in this embodiment is composed of a U-shaped metal pipe 55 and a heat absorbing plate 52.
  • the U-shaped metal pipe 55 is provided with two outlet ends, and both of the outlet ends are transitioned by a glass-metal pair:
  • the connection device is extended.
  • One end of the U-shaped metal pipe 55 is an inlet of a thermally conductive medium, and the other end may be an outlet of a thermally conductive medium.
  • the heat-conducting medium in the metal pipe 55 enters from the entrance end and then flows out from the other end, so as to discharge the heat of the solar energy absorbed by the heat absorption plate 52.
  • the glass connecting member 1 used in this embodiment is provided with two through holes 11. The structure of the two through holes can be sealed to the periphery of the two through holes 11 of the glass connecting member 1 by two metal connecting members 2.
  • This embodiment mainly increases the number of through-holes of the glass-metal secondary transition connection device.
  • This simple modification design can achieve a significant improvement in the structure of the vacuum heat collecting tube of this embodiment, and the needle-ground vacuum collecting The improvement of the heat pipe structure does not need to depend on the production line of the vacuum heat collection pipe.
  • FIG. 27 The structure of this embodiment is shown in FIG. 27.
  • one end of the glass tube 4 is a closed end and the other end is an open end 41.
  • a glass-metal secondary transition connection device is connected to the open end 41.
  • the metal heat absorbing body 5 is composed of a heat pipe 51 and a heat absorbing plate 52 to which the heat absorbing plate 52 is welded. On the heat absorbing plate 52 is attached with a heat absorbing layer, is filled with the medium within the heat pipe 51, the solar heat absorbing plate 52 to absorb heat away from the glass tube 4.
  • the axis of the metal heat absorbing body 5 is offset from the center line of the glass tube 4. Therefore, in this embodiment, the through-hole of the glass-metal secondary transition connection device sealed to an open end of the glass tube 4 is also offset from the center line.
  • a reflective condensing layer 7 is formed on the inner wall of the metal heat absorber 5 in the glass tube 4 on the side near the glass tube 4 to form an inner wall reflective condensing heat pipe vacuum tube solar heat collector.
  • the glass tube 4 has two open ends 41, and the two open ends 41 can be sealed with the glass-metal secondary transition connection device of the present invention.
  • the metal heat sink 5 in the tube 4 is composed of a metal pipe 53 and a heat absorption plate 52.
  • the axis of the metal heat absorbing body 5 is offset from the center line of the glass tube 4. Therefore, in this embodiment, the through hole in the glass-metal secondary transition connection device 4 sealed at an open end of the glass tube 4 is also offset from its center line.
  • the metal pipe 53 is also provided with two outlets, one end of which is an inlet of a heat conducting medium, and the other end of which may be an outlet of a heat conducting medium.
  • the heat-conducting medium in the metal pipe 53 enters from the entrance end and then flows out from the other end, so as to conduct the heat of the solar energy absorbed by the heat absorption plate 52.
  • a reflective condensing layer 7 is formed on the inner wall of the metal heat absorber 4 in the glass tube 4 on the side close to the glass tube 4 to form a straight-through vacuum tube solar heat collector with inner wall reflective condensing.
  • the glass-metal secondary transition connection device in various vacuum heat collecting tube structures described above can adopt various structures as described above.
  • the present invention adopts an extremely simple structure in a solar vacuum heat collecting tube and a glass-metal pair transition connecting device which is extremely easy to manufacture, the vacuum heat collecting tube can be conveniently designed with different structures and different specifications, and can meet different requirements.
  • the use demand is more conducive to the promotion and utilization of solar technology.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

L'invention porte sur un joint permettant de raccorder un tube en métal et un tube en verre. Ledit joint se compose d'une partie métallique et d'une partie en verre. Chaque partie présente un orifice traversant et est scellée avec l'autre le long du pourtour des orifices. Le joint est utilisé dans un tube de collecte thermique sous vide d'un appareil chauffant à énergie solaire. Le tube en verre de l'appareil chauffant à énergie solaire est scellé à la partie en verre du joint et le dispositif absorbant thermique métallique est scellé à la partie métallique du joint. Le joint de cette invention permet de simplifier le processus de scellement et de fabrication du dispositif, de réduire les coûts et de limiter le taux de perte de produits défectueux.
PCT/CN2000/000340 2000-10-18 2000-10-18 Joint permettant de raccorder un tube de metal et un tube en verre et son utilisation dans un systeme de collecte sous vide d'energie solaire de chaleur WO2002039005A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2000278997A AU2000278997A1 (en) 2000-10-18 2000-10-18 A joint for connecting a metal tube and a glass tube and its use in vacuum heat collecting tube system of solar energy
PCT/CN2000/000340 WO2002039005A1 (fr) 2000-10-18 2000-10-18 Joint permettant de raccorder un tube de metal et un tube en verre et son utilisation dans un systeme de collecte sous vide d'energie solaire de chaleur
CNB008199396A CN1176313C (zh) 2000-10-18 2000-10-18 玻璃金属副过渡连接装置及其在太阳能真空集热管中的应用

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2000/000340 WO2002039005A1 (fr) 2000-10-18 2000-10-18 Joint permettant de raccorder un tube de metal et un tube en verre et son utilisation dans un systeme de collecte sous vide d'energie solaire de chaleur

Publications (2)

Publication Number Publication Date
WO2002039005A1 true WO2002039005A1 (fr) 2002-05-16
WO2002039005A8 WO2002039005A8 (fr) 2002-09-19

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PCT/CN2000/000340 WO2002039005A1 (fr) 2000-10-18 2000-10-18 Joint permettant de raccorder un tube de metal et un tube en verre et son utilisation dans un systeme de collecte sous vide d'energie solaire de chaleur

Country Status (3)

Country Link
CN (1) CN1176313C (fr)
AU (1) AU2000278997A1 (fr)
WO (1) WO2002039005A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100414214C (zh) * 2006-12-15 2008-08-27 王军 熔封式热管真空集热管
CN100464132C (zh) * 2002-12-28 2009-02-25 徐宝安 静电防结垢太阳能真空集热管的制作方法
WO2012019552A1 (fr) * 2010-08-11 2012-02-16 Wang Ketao Équipement de tube d'échange thermique à l'intérieur d'un tube de capteur de chaleur solaire
CN114163144A (zh) * 2021-12-13 2022-03-11 中国科学院电工研究所 一种金属管-石英玻璃管连接结构及方法
RU215364U1 (ru) * 2022-05-24 2022-12-12 Общество с ограниченной ответственностью "ЗАО Мушарака" Солнечный водонагреватель прямого нагрева с вакуумными трубками

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635963A (zh) * 2012-04-26 2012-08-15 北京天普太阳能工业有限公司 直通式玻璃真空管、制备方法及空气集热器

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CN2313138Y (zh) * 1997-10-28 1999-04-07 朱昭林 90°钢－塑过渡管接头
CN1216817A (zh) * 1997-10-30 1999-05-19 中国科学院工程热物理研究所 金属太阳能真空集热管
JP2000028053A (ja) * 1998-07-08 2000-01-25 Nakano Setsubi Kogyo Kk 合成樹脂管の接続方法及びその方法で用いる工具
DE20003783U1 (de) * 2000-03-01 2000-08-03 Tece Gmbh & Co Kg Fitting mit zwei unterschiedlichen Dichtungswerkstoffen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2313138Y (zh) * 1997-10-28 1999-04-07 朱昭林 90°钢－塑过渡管接头
CN1216817A (zh) * 1997-10-30 1999-05-19 中国科学院工程热物理研究所 金属太阳能真空集热管
JP2000028053A (ja) * 1998-07-08 2000-01-25 Nakano Setsubi Kogyo Kk 合成樹脂管の接続方法及びその方法で用いる工具
DE20003783U1 (de) * 2000-03-01 2000-08-03 Tece Gmbh & Co Kg Fitting mit zwei unterschiedlichen Dichtungswerkstoffen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100464132C (zh) * 2002-12-28 2009-02-25 徐宝安 静电防结垢太阳能真空集热管的制作方法
CN100414214C (zh) * 2006-12-15 2008-08-27 王军 熔封式热管真空集热管
WO2012019552A1 (fr) * 2010-08-11 2012-02-16 Wang Ketao Équipement de tube d'échange thermique à l'intérieur d'un tube de capteur de chaleur solaire
CN114163144A (zh) * 2021-12-13 2022-03-11 中国科学院电工研究所 一种金属管-石英玻璃管连接结构及方法
CN114163144B (zh) * 2021-12-13 2023-11-24 中国科学院电工研究所 一种金属管-石英玻璃管连接结构及方法
RU215364U1 (ru) * 2022-05-24 2022-12-12 Общество с ограниченной ответственностью "ЗАО Мушарака" Солнечный водонагреватель прямого нагрева с вакуумными трубками

Also Published As

Publication number Publication date
CN1454302A (zh) 2003-11-05
CN1176313C (zh) 2004-11-17
AU2000278997A1 (en) 2002-05-21
WO2002039005A8 (fr) 2002-09-19

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