CN107063589B - Vacuum pipeline sealing detection device - Google Patents
Vacuum pipeline sealing detection device Download PDFInfo
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- CN107063589B CN107063589B CN201710490828.3A CN201710490828A CN107063589B CN 107063589 B CN107063589 B CN 107063589B CN 201710490828 A CN201710490828 A CN 201710490828A CN 107063589 B CN107063589 B CN 107063589B
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- sealing
- connecting piece
- pipe body
- pipeline
- sealing connecting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a vacuum pipeline sealing detection device which comprises a first pipe body, a second pipe body, an inner layer sealing connecting piece and an outer layer sealing connecting piece which are arranged between two opposite end surfaces of the first pipe body and the second pipe body, and a pipeline sealing detection mechanism for detecting the air tightness of the inner layer sealing connecting piece and the outer layer sealing connecting piece; the pipeline sealing detection mechanism is respectively in through connection with the annular sealing cavity and the connected vacuum pipeline. The structure design in proper order can be with the setting of the pipeline seal detection mechanism of the vacuum pipeline through connection after annular seal cavity and the connection, in time acquire detection data to effectively monitor the sealing condition between the adjacent body, simultaneously, can also be convenient under the vacuum degree's in the vacuum pipeline the condition that will go wrong inlayer sealing connection spare or outer sealing connection spare change alone.
Description
Technical Field
The invention relates to the technical field of pipelines, in particular to a vacuum pipeline sealing detection device.
Background
When the pipe bodies which move relatively are in sealing connection in the prior art, the sealing structure is simpler, and due to the fact that the pipeline to be sealed is longer, the quantity of the sealing structure is more, and due to the fact that the real-time detection device for the sealing structure is lacking, the sealing between the two pipe bodies has great potential safety hazards.
Disclosure of Invention
The invention aims to provide a vacuum pipeline sealing detection device capable of timely detecting sealing of adjacent pipe bodies.
To achieve the purpose, the invention adopts the following technical scheme:
the vacuum pipeline sealing detection device comprises a first pipe body, a second pipe body, an inner sealing connecting piece and an outer sealing connecting piece which are arranged between two opposite end surfaces of the first pipe body and the second pipe body, and a pipeline sealing detection mechanism for detecting the air tightness of the inner sealing connecting piece and the outer sealing connecting piece; the pipeline sealing detection mechanism is respectively in through connection with the annular sealing cavity and the connected vacuum pipeline.
The pipeline sealing detection mechanism comprises a first detection channel for obtaining the ratio between the air pressure value of the annular sealing cavity and the external standard air pressure value, a second detection channel for obtaining the ratio between the air pressure value of the annular sealing cavity and the vacuum pipeline, and a third detection channel for obtaining the ratio between the air pressure value of the vacuum pipeline and the external standard air pressure value.
The first detection channel, the second detection channel and the third detection channel are all electrically connected with an external electric control device.
The first detection channel, the second detection channel and the third detection channel are all provided with an air pressure sensor and a ventilation valve.
The two opposite end surfaces of the first pipe body and the second pipe body are respectively provided with an inner annular positioning ring and an outer annular positioning ring; the two ends of the inner layer sealing connecting piece are respectively fastened with the corresponding inner layer annular positioning rings; and two ends of the outer layer sealing connecting piece are respectively fastened with the corresponding outer layer annular positioning rings.
The two ends of the outer layer sealing connecting piece are fastened with the outer layer annular positioning ring through binding hoops; the two ends of the inner layer sealing connecting piece are fastened with the inner layer annular positioning ring through screws.
The inner layer annular positioning ring is circumferentially and uniformly provided with a plurality of mounting holes, and nuts matched with the screw are buried at one ends of the mounting holes.
The inner sealing connecting piece and the outer sealing connecting piece are identical in structure, the inner sealing connecting piece and the outer sealing connecting piece are both provided with a first arc wall and a second arc wall which are concavely arranged along the radial direction of the circumferential surface, and a positioning wall which horizontally extends to the outer end of the second arc wall, the second arc wall is smoothly transitionally arranged at two ends of the first arc wall, and the directions of the first arc wall and the second arc wall are opposite.
The two opposite end surfaces of the first pipe body and the second pipe body are both convexly provided with annular positioning rings, each annular positioning ring comprises a fixing part fastened with the positioning wall and a sealing part tightly attached to the concave surface of the second arc-shaped wall, and the sealing parts are annularly convexly arranged on the peripheral surface of each annular positioning ring.
The invention has the beneficial effects that: the invention provides a vacuum pipeline sealing detection device which comprises a first pipe body, a second pipe body, an inner sealing connecting piece and an outer sealing connecting piece which are arranged between two opposite end surfaces of the first pipe body and the second pipe body, and a pipeline sealing detection mechanism for detecting the air tightness of the inner sealing connecting piece and the outer sealing connecting piece; the pipeline sealing detection mechanism is respectively in through connection with the annular sealing cavity and the connected vacuum pipeline. The structure design in proper order can be with the setting of the pipeline seal detection mechanism of the vacuum pipeline through connection after annular seal cavity and the connection, in time acquire detection data to effectively monitor the sealing condition between the adjacent body, simultaneously, can also be convenient under the vacuum degree's in the vacuum pipeline the condition that will go wrong inlayer sealing connection spare or outer sealing connection spare change alone.
Drawings
Fig. 1 is a schematic axial sectional view of a sealing joint according to the present invention.
FIG. 2 is a schematic view of the structure of the annular positioning rings of the opposite end surfaces of the first connector and the second connector.
Fig. 3 is a schematic view of the structure of the vacuum pipe provided with the sealing connection according to the present invention.
Fig. 4 is a partial enlarged view at a in fig. 3.
Fig. 5 is a schematic structural view of the BB section in fig. 4.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 5, the present embodiment provides a vacuum pipe seal detection device, which includes a first pipe body 1, a second pipe body 2, an inner layer seal connector 34 and an outer layer seal connector 35 disposed between opposite end surfaces of the first pipe body 1 and the second pipe body 2, and a pipe seal detection mechanism 80 for detecting air tightness of the inner layer seal connector 34 and the outer layer seal connector 35; the inner sealing connector 34 and the outer sealing connector 35 are arranged in an annular sealing cavity 36, and the pipeline sealing detection mechanism 80 is respectively in through connection with the annular sealing cavity 36 and the connected vacuum pipeline.
Specifically, in this embodiment, the pipe seal detecting mechanism 80 includes a first detecting channel for obtaining a ratio between the air pressure value of the annular seal cavity 36 and the external standard air pressure value, a second detecting channel for obtaining a ratio between the air pressure value of the annular seal cavity 36 and the vacuum pipe, and a third detecting channel for obtaining a ratio between the air pressure value of the vacuum pipe and the external standard air pressure value, where the first detecting channel, the second detecting channel, and the third detecting channel are all electrically connected with the external electric control device, and the first detecting channel, the second detecting channel, and the third detecting channel are all provided with air pressure sensors and air valves.
The pipeline sealing detection mechanism with the structural design can effectively acquire the air pressure change in the annular sealing cavity 36 and the connected vacuum pipeline through the arrangement of each detection channel, so as to judge the tightness of the inner sealing connecting piece 34 or the outer sealing connecting piece 35, and the maintenance is convenient and timely and effective. By adopting the design in the mode, after the data acquired by each channel is analyzed and judged by the external electric control device, the air pressure ratio of each detection channel is adjusted by adjusting the air vent valve on the corresponding detection channel, so that the vacuum degree in the vacuum pipeline is balanced, and meanwhile, the air leakage position can be judged remotely according to the acquired data, and the inner-layer sealing connecting piece or the outer-layer sealing connecting piece which is problematic under the condition that the vacuum degree in the vacuum pipeline is not influenced can be replaced independently.
Further, in this embodiment, the two opposite end surfaces of the first pipe body 1 and the second pipe body 2 are respectively provided with an inner annular positioning ring 43 and an outer annular positioning ring 44; both ends of the inner layer sealing connector 34 are respectively fastened with the corresponding inner layer annular positioning rings 43; the two ends of the outer layer sealing connecting piece 35 are respectively fastened with the corresponding outer layer annular positioning rings 44, and the two ends of the outer layer sealing connecting piece 35 are fastened with the outer layer annular positioning rings through binding hoops 5; the both ends of inlayer sealing connection piece 34 pass through screw rod 6 with inlayer annular retainer plate 43 fastening, inlayer annular retainer plate 43 circumference equipartition has a plurality of mounting holes, the one end of mounting hole has buried screw rod 6 matched with nut 7, inlayer sealing connection piece 34 and outer sealing connection piece 35 structure are the same, inlayer sealing connection piece 34 and outer sealing connection piece 35 all are provided with along radial concave first arc wall 31 and the second arc wall 32 of establishing of circumference to and the level epitaxy in the locating wall 33 of second arc wall 32 outer end, second arc wall 32 smooth transition set up in the both ends of first arc wall 31, just first arc wall 31 with the concave direction of establishing of second arc wall 32 is opposite, the annular retainer plate 40 is all protruding to be equipped with in the opposite both ends face of first body 1 and second body 2, annular retainer plate 40 include with the fixed part 41 of locating wall 33 fastening, and with the concave face of second arc wall 32 closely laminates the annular sealing part 42 of annular retainer plate 40.
In this embodiment, the air pressure value of the inner concave surface of the first arc wall in the connected vacuum pipeline is smaller than the air pressure value of the outer concave surface of the first arc wall, so that the inner concave surface of the second arc wall can be tightly attached to the sealing part, and a good sealing effect is achieved; the inner layer sealing connector 34 and the inner layer annular positioning ring 43 are fixed through bolts and nuts, so that the inner layer sealing connector 34 is convenient to install and maintain from the vacuum pipeline cavity. In this way, not only can the air tightness after connection between adjacent vacuum pipes be effectively improved, but also the inner layer sealing connector 34 and the outer layer sealing connector 35 can be conveniently installed and maintained.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (4)
1. A vacuum pipeline seal detection device which is characterized in that: the pipeline sealing detection device comprises a first pipe body, a second pipe body, an inner sealing connecting piece and an outer sealing connecting piece which are arranged between two opposite end surfaces of the first pipe body and the second pipe body, and a pipeline sealing detection mechanism for detecting the air tightness of the inner sealing connecting piece and the outer sealing connecting piece; the pipeline sealing detection mechanism is respectively in through connection with the annular sealing cavity and the connected vacuum pipeline;
the two opposite end surfaces of the first pipe body and the second pipe body are respectively provided with an inner annular positioning ring and an outer annular positioning ring; the two ends of the inner layer sealing connecting piece are respectively fastened with the corresponding inner layer annular positioning rings; the two ends of the outer layer sealing connecting piece are respectively fastened with the corresponding outer layer annular positioning rings;
the two ends of the outer layer sealing connecting piece are fastened with the outer layer annular positioning ring through binding hoops; the two ends of the inner layer sealing connecting piece are fastened with the inner layer annular positioning ring through screws;
a plurality of mounting holes are uniformly distributed in the circumferential direction of the inner annular positioning ring, and nuts matched with the screw rods are buried at one end of each mounting hole;
the inner layer sealing connecting piece and the outer layer sealing connecting piece have the same structure, the inner layer sealing connecting piece and the outer layer sealing connecting piece are respectively provided with a first arc wall and a second arc wall which are concavely arranged along the radial direction of the circumferential surface, and a positioning wall which horizontally extends to the outer end of the second arc wall, the second arc wall is smoothly transitionally arranged at two ends of the first arc wall, and the concave arrangement direction of the first arc wall and the second arc wall is opposite;
the two opposite end surfaces of the first pipe body and the second pipe body are both convexly provided with annular positioning rings, each annular positioning ring comprises a fixing part fastened with the positioning wall and a sealing part tightly attached to the concave surface of the second arc-shaped wall, and the sealing parts are annularly convexly arranged on the peripheral surface of the annular positioning ring.
2. The vacuum line seal detection apparatus according to claim 1, wherein: the pipeline sealing detection mechanism comprises a first detection channel for obtaining the ratio between the air pressure value of the annular sealing cavity and the external standard air pressure value, a second detection channel for obtaining the ratio between the air pressure value of the annular sealing cavity and the vacuum pipeline, and a third detection channel for obtaining the ratio between the air pressure value of the vacuum pipeline and the external standard air pressure value.
3. A vacuum line seal inspection apparatus according to claim 2, wherein: the first detection channel, the second detection channel and the third detection channel are all electrically connected with an external electric control device.
4. A vacuum line seal inspection apparatus according to claim 3, wherein: the first detection channel, the second detection channel and the third detection channel are all provided with an air pressure sensor and a ventilation valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710490828.3A CN107063589B (en) | 2017-06-23 | 2017-06-23 | Vacuum pipeline sealing detection device |
| PCT/CN2018/087725 WO2018233433A1 (en) | 2017-06-23 | 2018-05-21 | Vacuum pipeline sealing detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710490828.3A CN107063589B (en) | 2017-06-23 | 2017-06-23 | Vacuum pipeline sealing detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107063589A CN107063589A (en) | 2017-08-18 |
| CN107063589B true CN107063589B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710490828.3A Active CN107063589B (en) | 2017-06-23 | 2017-06-23 | Vacuum pipeline sealing detection device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107063589B (en) |
| WO (1) | WO2018233433A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063589B (en) * | 2017-06-23 | 2023-04-25 | 苏彬诚 | Vacuum pipeline sealing detection device |
| CN110595703B (en) * | 2019-08-23 | 2024-03-26 | 合肥荣事达太阳能科技有限公司 | Device and method for detecting tightness of vacuum tube of solar water heater |
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| JP2002267029A (en) * | 2001-03-13 | 2002-09-18 | Ishikawajima Harima Heavy Ind Co Ltd | Vacuum seal mechanism |
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| CN101956887A (en) * | 2010-09-15 | 2011-01-26 | 湖北贵族真空科技股份有限公司 | Vacuum transmission pipe and connecting structure thereof |
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| CN204428568U (en) * | 2014-12-23 | 2015-07-01 | 深圳安维森实业有限公司 | Assembly is in charge of in salable detection |
| CN204556195U (en) * | 2015-03-27 | 2015-08-12 | 天津市卓阳无损检测有限公司 | A kind of pipeline girth weld air-flow the cannot-harm-detection device |
| CN205824430U (en) * | 2016-07-18 | 2016-12-21 | 许天盈 | A kind of vacuum pipe retractor device of adjustable sealing specific pressure |
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| JP4052882B2 (en) * | 2002-06-11 | 2008-02-27 | 臼井国際産業株式会社 | Connection structure between thin metal pipe and flexible hose |
| GB2521340B (en) * | 2013-10-14 | 2017-10-04 | Edwards Ltd | Vacuum system pipe couplings |
| CN204202834U (en) * | 2014-11-12 | 2015-03-11 | 无锡金龙石化冶金设备制造有限公司 | A kind of corrugated tube interlayer monitoring device |
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| CN105675231B (en) * | 2016-02-22 | 2019-02-15 | 中航光电科技股份有限公司 | A kind of negative-pressure sealing detection device |
| CN206920093U (en) * | 2017-06-23 | 2018-01-23 | 苏彬诚 | A kind of vacuum pipe package seal checker |
| CN107063589B (en) * | 2017-06-23 | 2023-04-25 | 苏彬诚 | Vacuum pipeline sealing detection device |
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2017
- 2017-06-23 CN CN201710490828.3A patent/CN107063589B/en active Active
-
2018
- 2018-05-21 WO PCT/CN2018/087725 patent/WO2018233433A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1509381A (en) * | 1974-05-06 | 1978-05-04 | Hasha M | Leak testing method for tubular members and seals for use therein |
| JP2002267029A (en) * | 2001-03-13 | 2002-09-18 | Ishikawajima Harima Heavy Ind Co Ltd | Vacuum seal mechanism |
| CN201232814Y (en) * | 2008-06-25 | 2009-05-06 | 舒金发 | Pipeline connecting assemble |
| CN101793584A (en) * | 2009-12-04 | 2010-08-04 | 中冶建筑研究总院有限公司 | Large-diameter pipeline sealing property detection device and method |
| CN101956887A (en) * | 2010-09-15 | 2011-01-26 | 湖北贵族真空科技股份有限公司 | Vacuum transmission pipe and connecting structure thereof |
| CN103207051A (en) * | 2012-01-12 | 2013-07-17 | 珠海格力电器股份有限公司 | Pipeline air tightness detection sealing device, pipeline air tightness detection system and pipeline air tightness detection method |
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| CN204428568U (en) * | 2014-12-23 | 2015-07-01 | 深圳安维森实业有限公司 | Assembly is in charge of in salable detection |
| CN204556195U (en) * | 2015-03-27 | 2015-08-12 | 天津市卓阳无损检测有限公司 | A kind of pipeline girth weld air-flow the cannot-harm-detection device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107063589A (en) | 2017-08-18 |
| WO2018233433A1 (en) | 2018-12-27 |
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