CN109534667B - Device and method for connecting vacuum gauge pipe with heat collecting pipe glass outer pipe - Google Patents
Device and method for connecting vacuum gauge pipe with heat collecting pipe glass outer pipe Download PDFInfo
- Publication number
- CN109534667B CN109534667B CN201811564036.7A CN201811564036A CN109534667B CN 109534667 B CN109534667 B CN 109534667B CN 201811564036 A CN201811564036 A CN 201811564036A CN 109534667 B CN109534667 B CN 109534667B
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- Prior art keywords
- glass
- tube
- pipe
- vacuum gauge
- heat collecting
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- 239000011521 glass Substances 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000010285 flame spraying Methods 0.000 claims description 15
- 239000011229 interlayer Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000000446 fuel Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004964 aerogel Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/20—Uniting glass pieces by fusing without substantial reshaping
- C03B23/207—Uniting glass rods, glass tubes, or hollow glassware
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Joining Of Glass To Other Materials (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a device for connecting a vacuum gauge pipe with a heat collecting pipe glass outer pipe, which comprises a support frame, wherein a lifting device for placing the heat collecting pipe, a heating device for heating the glass vacuum gauge pipe and the joint of the glass vacuum gauge pipe and the heat collecting pipe glass outer pipe and a lifting device for placing the glass vacuum gauge pipe are arranged on the support frame. The invention can replace manual work to finish the vacuum gauge tube and the heat collecting tube glass outer tube, reduces the labor intensity of workers, improves the working efficiency, avoids the scalding danger of operators and improves the quality of products.
Description
Technical Field
The invention relates to the technical field of solar heat collecting tube manufacturing, in particular to a device and a method for connecting a vacuum gauge tube with a glass outer tube of a heat collecting tube.
Background
The medium-high temperature solar vacuum heat collecting tube comprises a glass outer tube and a metal inner tube, wherein a vacuum interlayer design is adopted between the glass outer tube and the metal inner tube, and the vacuum degree reaches 10 -4 Pa, so metal inner tube only has one kind of heat radiation to glass outer tube heat conduction form, can effectively reduce thermal-collecting tube heat loss, improve heat transfer efficiency, consequently, the thermal-collecting tube vacuum degree is one of the important indexes of thermal-collecting tube performance, in order to detect the vacuum degree of thermal-collecting tube that can be convenient, install a glass vacuum gauge on the lateral wall of glass outer tube in the prior art generally, glass vacuum gauge's glass tail tube sealing connection is at the surface of glass outer tube, when the vacuum degree of inside needs to be detected, is connected vacuum gauge and vacuum tester, can conveniently measure the vacuum degree in the vacuum tube at any time.
The sealing connection of the existing glass vacuum gauge tube and the glass outer tube is completed manually, so that the workload is large, the working efficiency is low, the installation error is large, and the quality problem is easy to generate.
Disclosure of Invention
The invention aims to avoid the defects of the prior art and provides a device for connecting a vacuum gauge tube with a heat collecting tube glass outer tube, so that the defects in the prior art are effectively overcome.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the device for connecting the vacuum gauge pipe and the heat collecting pipe glass outer pipe comprises a support frame, wherein a lifting device for placing the heat collecting pipe, a heating device for heating the joint of the glass vacuum gauge pipe and the heat collecting pipe glass outer pipe and a lifting device for placing the glass vacuum gauge pipe are arranged on the support frame;
the heating device comprises a rotating ring and a flame spraying nozzle, the flame spraying nozzle is fixedly arranged on the inner side of the rotating ring, the flame spraying nozzle is uniformly arranged around along the circumferential direction, and the rotating ring is horizontally and rotatably arranged on the supporting frame under the driving of the driving device;
the lifting device comprises a lifting plate, the lifting plate can be arranged under the center of the rotating ring in a vertically movable mode, and a space through which a glass tail pipe of the glass vacuum gauge can pass is arranged between the four flame nozzles.
Further, the lifting device comprises a vertical rod fixedly arranged on the supporting frame and a lifting plate arranged at the top end of the vertical rod.
Further, the lifting plate is an arc-shaped plate matched with the surface shape of the heat collecting tube.
Further, the driving device comprises a motor fixedly arranged on the supporting frame, a driving gear is fixedly arranged on an output shaft of the motor, a driven gear ring is fixedly arranged on the outer side of the rotating ring, and the driving gear is meshed with the driven gear ring.
Further, the support frame is fixedly provided with a supporting ring through a support rod, and the bottom of the rotating ring is matched with the supporting edge to be provided with a rotating socket.
Further, a guide post is arranged on the support frame along the vertical direction, a guide hole is arranged on the lifting plate in a matched mode with the guide post, and a lifting driving device is arranged between the lifting plate and the support frame.
Further, the lifting driving device comprises a lifting driving motor fixedly arranged on the supporting frame, a lifting driving gear is fixedly arranged on an output shaft of the lifting driving motor, a rack is arranged at the bottom of the lifting plate along the vertical direction, and the rack is meshed with the lifting driving gear.
Further, a limiting block is arranged on the lifting plate in cooperation with the glass vacuum gauge.
The method for connecting the vacuum gauge pipe and the device for connecting the glass outer pipe of the heat collecting pipe comprises the following steps:
step a: placing the heat collecting pipe on a lifting device, placing the glass vacuum gauge pipe on a lifting plate, and adjusting the horizontal position of the heat collecting pipe to enable the glass vacuum gauge pipe to be positioned at a proper installation position relative to the heat collecting pipe;
starting a flame spraying nozzle, driving the flame spraying nozzle to alternately rotate clockwise by 90 degrees and anticlockwise by 90 degrees through a driving device, heating the connecting part of the outer glass tube of the heat collecting tube to form a glass heating zone, driving a glass vacuum gauge tube to move upwards under the driving of a lifting plate in the heating process, slowly moving a glass tail tube of the glass vacuum gauge tube to the glass heating zone, and after the glass tail tube is inserted into the glass outer tube, communicating the inner part of the glass tail tube with a vacuum interlayer, wherein the lifting plate stops rising at the moment, and the flame is reduced from large to small;
step c: the flame of the flame spraying nozzle is changed from small to large, and the small flame is adopted to anneal the connection part of the glass tail pipe and the glass outer pipe of the heat collecting pipe, so as to complete the connection of the glass vacuum gauge pipe and the glass outer pipe of the heat collecting pipe.
The technical scheme of the invention has the following beneficial effects: the invention can replace manual work to finish the vacuum gauge tube and the heat collecting tube glass outer tube, reduces the labor intensity of workers, improves the working efficiency, avoids the scalding danger of operators and improves the quality of products.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a top view of a rotating ring and surrounding structure according to an embodiment of the present invention;
fig. 4 is a state diagram showing the connection of the vacuum gauge tube and the heat collecting tube glass outer tube in the embodiment of the invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-3, the device for connecting a vacuum gauge with a heat collecting tube glass outer tube in this embodiment includes a support frame 1, and a lifting device for placing a heat collecting tube 2, a heating device for heating a joint of a glass vacuum gauge 3 and a heat collecting tube glass outer tube 2a, and a lifting device for placing a glass vacuum gauge 3 are arranged on the support frame 1.
The heating device includes swivel becket 4 and flaming nozzle 5, flaming nozzle 5 is fixed to be set up in the inboard of swivel becket 4 and flaming nozzle 5 is provided with everywhere along circumference is even, flaming nozzle 5 is connected with the fuel jar through fuel conveyer pipe 5a, the fuel jar carries the fuel to the flaming nozzle 5 department, ignite through the ignition device, realize flame combustion, in this embodiment, the flame of flaming nozzle 5 sets up along vertical direction, swivel becket 4 through the setting on support frame 1 that can horizontal pivoted under drive arrangement's drive, so alright realize the circumference rotation of flaming nozzle 5, guarantee the homogeneity of heating.
The lifting device comprises a lifting plate 6, the lifting plate 6 is arranged right below the center of the rotating ring 4 in a vertically movable way, and a space 7 through which the glass tail pipe 3a of the glass vacuum gauge 3 can pass is arranged between the four flame nozzles 5.
The lifting device comprises a vertical rod 8 fixedly arranged on the support frame 1 and a lifting plate 9 arranged at the top end of the vertical rod 8, wherein the lifting plate 9 is an arc-shaped plate matched with the surface shape of the heat collecting tube 2, and the self-positioning can be completed without other fixing devices after the heat collecting tube 2 is placed on the lifting plate 9 due to the fact that the self-weight of the heat collecting tube 2 is large, and of course, in order to improve the safety performance, a locking block can be arranged above the lifting plate 9 and connected with the lifting plate 9 through a screw, and a fixing cavity matched with the circular outline of the heat collecting tube 2 is formed between the locking block and the lifting plate 9.
The driving device comprises a motor 10 fixedly arranged on the support frame 1, a driving gear 11 is fixedly arranged on an output shaft of the motor 10, a driven gear ring 12 is fixedly arranged on the outer side of the rotating ring 4, the driving gear 11 is meshed with the driven gear ring 12, and the rotating ring 4 is driven by the motor 10 to drive the flame spraying nozzle 5 to rotate circumferentially.
The support frame 1 is fixedly provided with a support ring 14 through a support rod 13, the bottom of the rotating ring 4 is provided with a rotating socket 4a in cooperation with the support edge 14, the cross section of the support ring 14 is T-shaped, and the function of preventing the rotating ring 4 from falling off is achieved.
In order to improve the smoothness of sliding between the carrier ring 14 and the rotating ring 4, a pulley structure can be added between the carrier ring 14 and the rotating ring 4.
The support frame 1 is provided with a guide post 15 along the vertical direction, the guide post 15 is provided with two at least, the lifting plate 6 is provided with a guide hole in cooperation with the guide post 15, and a lifting driving device is arranged between the lifting plate 6 and the support frame 1.
The lifting driving device comprises a lifting driving motor 16 fixedly arranged on the supporting frame 1, a lifting driving gear 17 is fixedly arranged on an output shaft of the lifting driving motor 16, a rack 18 is arranged at the bottom of the lifting plate 6 along the vertical direction, the rack 18 is meshed with the lifting driving gear 17, and the lifting plate 6 is driven to move up and down through the lifting driving motor 16.
The lifting plate 6 is provided with the limiting block 19 in cooperation with the glass vacuum gauge 3, and the limiting block 19 can conveniently limit the glass vacuum gauge 3, so that the working efficiency is improved.
The method for connecting the vacuum gauge pipe and the heat collecting pipe glass outer pipe by using the device comprises the following steps:
step a: placing the heat collecting pipe 2 on a lifting device, placing the glass vacuum gauge 3 on a lifting plate 6, and adjusting the horizontal position of the heat collecting pipe 2 so that the glass vacuum gauge 3 is positioned at a proper installation position relative to the heat collecting pipe 2;
starting a flame spraying nozzle 5, driving the flame spraying nozzle 5 to alternately rotate clockwise by 90 degrees and anticlockwise by 90 degrees through a driving device, heating the connecting part of the outer glass tube 2a of the heat collecting tube at 700-800 ℃ for 850-900s to form a glass heating zone a, and in the heating process, driving the glass vacuum gauge 3 to move upwards under the driving of the lifting plate 6, and slowly moving the glass tail tube 3a of the glass vacuum gauge 3 towards the glass heating zone a, wherein after the glass tail tube 3a is inserted into the inner part of the outer glass tube 2a, the inner part of the glass tail tube 3a is communicated with a vacuum interlayer 3c, and the lifting plate 6 stops rising at the moment, so that flame is greatly reduced and flame cannot be extinguished;
step c: the flame of the nozzle is changed from small to large, the small flame is adopted to anneal the connection part of the glass tail pipe 3a and the heat collecting pipe glass outer pipe 2a, the heating temperature is 450-600 ℃, the time is 550-650s, and the connection of the glass vacuum gauge pipe 3 and the heat collecting pipe glass outer pipe 2a is completed.
Step d: after the glass vacuum gauge 3 is tightly packed by an aerogel heat insulation device and the like, the vacuum interlayer 2c between the glass outer tube 2a and the metal inner tube 2b is vacuumized, the technological parameters are constant temperature 440-460 ℃ (preferably 450 ℃), and the vacuum degree reaches 10 ℃ -4 Pa。
In the use process of the heat collecting pipe, the glass vacuum gauge 3 can be connected with a standard vacuum gauge at any time, and the real-time vacuum degree condition of the heat collecting pipe is checked.
The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The device for connecting the vacuum gauge pipe and the outer glass tube of the heat collecting tube is characterized by comprising a support frame, wherein the support frame is provided with a lifting device for placing the heat collecting tube, a heating device for heating the joint of the glass vacuum gauge pipe and the outer glass tube of the heat collecting tube and a lifting device for placing the glass vacuum gauge pipe;
the heating device comprises a rotating ring and a flame spraying nozzle, the flame spraying nozzle is fixedly arranged on the inner side of the rotating ring, the flame spraying nozzle is uniformly arranged around along the circumferential direction, and the rotating ring is horizontally and rotatably arranged on the supporting frame under the driving of the driving device;
the lifting device comprises a lifting plate, the lifting plate can be arranged right below the center of the rotating ring in a vertically movable way, and a space for a glass tail pipe of a glass vacuum gauge pipe to pass through is arranged between the four flame nozzles; the driving device comprises a motor fixedly arranged on the supporting frame, a driving gear is fixedly arranged on an output shaft of the motor, a driven gear ring is fixedly arranged on the outer side of the rotating ring, and the driving gear is meshed with the driven gear ring; the support frame is fixedly provided with a supporting ring through a support rod, and a rotating socket is arranged at the bottom of the rotating ring in a matching supporting way.
2. The device for connecting a vacuum gauge tube with a heat collecting tube glass outer tube according to claim 1, wherein the lifting device comprises a vertical rod fixedly arranged on a supporting frame and a lifting plate arranged at the top end of the vertical rod.
3. The device for connecting a vacuum gauge tube with a heat collecting tube glass outer tube according to claim 2, wherein the lifting plate is an arc-shaped plate which is matched with the surface shape of the heat collecting tube.
4. The device for connecting a vacuum gauge tube with a heat collecting tube glass outer tube according to claim 1, wherein a guide post is arranged on the support frame along the vertical direction, a guide hole is arranged on the lifting plate in cooperation with the guide post, and a lifting driving device is arranged between the lifting plate and the support frame.
5. The device for connecting a vacuum gauge tube with a heat collecting tube glass outer tube according to claim 4, wherein the lifting driving device comprises a lifting driving motor fixedly arranged on the supporting frame, a lifting driving gear is fixedly arranged on an output shaft of the lifting driving motor, a rack is arranged at the bottom of the lifting plate along the vertical direction, and the rack is meshed with the lifting driving gear.
6. The device for connecting a vacuum gauge to a heat collecting tube glass outer tube according to claim 1, wherein a limiting block is arranged on the lifting plate in cooperation with the glass vacuum gauge.
7. A method for connecting a vacuum gauge tube with a collector tube glass outer tube using the device for connecting a vacuum gauge tube with a collector tube glass outer tube as claimed in any one of claims 1-6, comprising the steps of:
step a: placing the heat collecting pipe on a lifting device, placing the glass vacuum gauge pipe on a lifting plate, and adjusting the horizontal position of the heat collecting pipe to enable the glass vacuum gauge pipe to be positioned at a proper installation position relative to the heat collecting pipe;
starting a flame spraying nozzle, driving the flame spraying nozzle to alternately rotate clockwise by 90 degrees and anticlockwise by 90 degrees through a driving device driving a rotating ring, heating the connecting part of the glass outer tube of the heat collecting tube to form a glass heating zone, driving a glass vacuum gauge tube to move upwards under the driving of a lifting plate in the heating process, slowly moving a glass tail tube of the glass vacuum gauge tube to the glass heating zone, and after the glass tail tube is inserted into the glass outer tube, communicating the inside of the glass tail tube with a vacuum interlayer, wherein the lifting plate stops at the moment
The flame is reduced from large to small by stopping rising;
step c: the flame of the flame spraying nozzle is changed from small to large, and the small flame is adopted to anneal the connection part of the glass tail pipe and the glass outer pipe of the heat collecting pipe, so as to complete the connection of the glass vacuum gauge pipe and the glass outer pipe of the heat collecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564036.7A CN109534667B (en) | 2018-12-20 | 2018-12-20 | Device and method for connecting vacuum gauge pipe with heat collecting pipe glass outer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564036.7A CN109534667B (en) | 2018-12-20 | 2018-12-20 | Device and method for connecting vacuum gauge pipe with heat collecting pipe glass outer pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109534667A CN109534667A (en) | 2019-03-29 |
| CN109534667B true CN109534667B (en) | 2024-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811564036.7A Active CN109534667B (en) | 2018-12-20 | 2018-12-20 | Device and method for connecting vacuum gauge pipe with heat collecting pipe glass outer pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN109534667B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114292013B (en) * | 2021-11-15 | 2024-01-19 | 山东绿成环保材料有限公司 | Efficient automatic closing-in device for tail end of glass tube and use method |
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| CN209259928U (en) * | 2018-12-20 | 2019-08-16 | 沧州天瑞星光热技术有限公司 | A kind of device being connect for vacuum gauge with collector tube glass outer tube |
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| GB698052A (en) * | 1950-01-25 | 1953-10-07 | Corning Glass Works | Methods of and machine for sealing electrically conductive elements into glass envelopes |
| SU1286545A1 (en) * | 1985-06-18 | 1987-01-30 | Самостоятельное конструкторско-технологическое бюро по проектированию приборов и аппаратов из стекла | Method of soldering glass tube to glass component |
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| CN109534667A (en) | 2019-03-29 |
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Effective date of registration: 20221130 Address after: 100089 room 916, scientific research building, No.61 Zhichun Road, Haidian District, Beijing Applicant after: BEIJING TRX SOLAR TECHNOLOGY Co.,Ltd. Address before: 061000 No.29, East Jilin Avenue, high tech Industrial Development Zone, Cangzhou City, Hebei Province Applicant before: CANGZHOU TRX SOLAR TECHNOLOGY Co.,Ltd. |
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