CN102062666A - Vacuum degree detecting method and device for vacuum heat insulating plate - Google Patents
Vacuum degree detecting method and device for vacuum heat insulating plate Download PDFInfo
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- CN102062666A CN102062666A CN 201010547641 CN201010547641A CN102062666A CN 102062666 A CN102062666 A CN 102062666A CN 201010547641 CN201010547641 CN 201010547641 CN 201010547641 A CN201010547641 A CN 201010547641A CN 102062666 A CN102062666 A CN 102062666A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims abstract description 21
- 230000035772 mutation Effects 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims description 24
- 230000007423 decrease Effects 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012353 t test Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The invention relates to a vacuum degree detecting method and device for a vacuum heat insulating plate. The vacuum degree detecting method comprises the following steps of: positioning the local part of a vacuum seal plate between an upper seal cavity and a lower seal cavity; selecting a part of a surface film layer of the vacuum seal plate positioned between the upper seal cavity and the lower seal cavity as a detecting point of a vacuum pressure sensor; simultaneously evacuating the upper seal cavity and the lower seal cavity; inputting displacement generated by the deformation of the detecting point through a laser displacement detector and pressure change in the seal cavities, which is detected by the vacuum pressure sensor, into an X-Y function recorder; and observing curve mutation in the X-Y function recorder, wherein a vacuum degree corresponding to a mutation point can be considered to be the vacuum degree in a vacuum seal plate. By building an environment which is balanced with the internal pressure of the vacuum heat insulating plate outside the vacuum heat insulating plate and obtaining a pressure value in the vacuum heat insulating plate by testing the pressure of the external environment, the vacuum heat insulating plate is not damaged, the detecting process is realized rapidly and conveniently, and figures are visually read by an instrument.
Description
Technical field
The present invention relates to the vacuum detecting method and the vacuum-ness detecting device thereof of vacuum insulation panel.
Background technology
Vacuum insulation panel is to be made of Aluminum-plastic composite bag and the cotton plate of ultra-fine fibre glass and the getter that are in the Aluminum-plastic composite bag, owing to can avoid cross-ventilation to conduct heat effectively, so coefficient of heat conductivity is very low, is a kind of thermal insulation material.The performance of vacuum heat-insulating plate and the length in serviceable life, the height that depends on the vacuum heat-insulating plate internal vacuum to a great extent, so the vacuum tightness of vacuum heat-insulation intralamellar part is very important index of one of vacuum insulation panel quality, in case but behind the present vacuum heat-insulation disc seal, can't test its internal vacuum again.Though can on-line testing in the process that vacuumizes, when sealing, very difficult assurance does not have little air and enters, so between the practical vacuum degree of online vacuum tightness that records and the vacuum insulation panel that dispatches from the factory error may be arranged.Because between the vacuum tightness of vacuum insulation panel and the coefficient of heat conductivity of vacuum insulation panel is corresponding, the high more then coefficient of heat conductivity of vacuum tightness is low more, be to check the quality of vacuum insulation panel to the vacuum insulation panel that dispatches from the factory at present by testing its coefficient of heat conductivity, but the time of the coefficient of heat conductivity testization expense of a vacuum insulation panel will reach 2～3 hours, and process is more loaded down with trivial details.
Summary of the invention
The objective of the invention is to propose a kind of fast, convenient, the vacuum detecting method and the vacuum-ness detecting device thereof of vacuum insulation panel intuitively.
Purpose for the vacuum detecting method that reaches vacuum insulation panel proposed by the invention, the technical scheme that the present invention takes is as follows: the part of vacuum seal plate is in, between the lower seal chamber, selection is in, surperficial book rete one position of the vacuum seal plate between the lower seal chamber is as the sensing point of vacuum pressure sensor, to last, the lower seal chamber vacuumizes simultaneously, the deformation that the surperficial book rete of vacuum seal plate can take place outwards to heave, by the laser displacement detector record displacement that sensing point produces because of deformation and the annular seal space that records by vacuum pressure sensor in pressure change and all import in the X-Y function recording instrument, the X-Y function recording instrument shows pressure decline change curve; When the vacuum tightness balance in vacuum tightness in the vacuum annular seal space and the vacuum seal plate, displacement no longer increases, and can observe curve and undergo mutation in the X-Y function recording instrument, and the vacuum tightness of catastrophe point correspondence can be thought the vacuum tightness in the vacuum seal plate.
Further, when in the X-Y function recording instrument, observe pressure descend to change undergo mutation after, close vacuum pump, annular seal space is carried out slow tonifying Qi, at this moment the X-Y function recording instrument shows pressure rise change curve, and the intersection point of pressure decline change curve and pressure rise change curve or point of contact promptly are the vacuum tightness in the vacuum seal plate.
Purpose for the vacuum-ness detecting device that reaches above-mentioned vacuum insulation panel proposed by the invention, the technical scheme that the present invention takes is as follows: the present invention has monitor station, the laser displacement detector, vacuum pressure sensor, the X-Y function recording instrument, vacuum pump, described monitor station is fixed on the base, also be fixed with the swing arm frame on the base, the upper surface of described monitor station is provided with groove, form the lower seal chamber, a hinged swing arm on the swing arm frame, be fixed with seal head in the swing arm, the bottom surface of seal head is provided with groove, annular seal space in the formation, on, the lower seal chamber is respectively by last, bottom hose is connected with described vacuum pump, the upper surface of described monitor station and be fixed with lower seal around lower seal chamber opening is fixed with O-ring seal on the bottom surface of described seal head and around last annular seal space opening, and last O-ring seal is relative with lower seal; Described laser displacement detector is fixed on the medicephalic top of sealing by support, and a vacuum pressure sensor is connected with last annular seal space by top hose, and each is connected above-mentioned laser displacement detector and vacuum pressure sensor with the X-Y function recording instrument by lead.
The present invention has following good effect: the present invention is by building an environment with vacuum insulation panel internal pressure balance in that vacuum insulation panel is outside, pressure by the test for external environment obtains vacuum insulation panel pressure inside value, so do not destroy vacuum insulation panel, testing process fast, convenient, by instrument reading number intuitively.The apparatus structure that the present invention proposes is simple, easy to operate.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, according to specific embodiment also in conjunction with the accompanying drawings, the present invention is further detailed explanation below.
Fig. 1 is the configuration diagram of vacuum-ness detecting device.
Fig. 2 is that the X-Y function recording instrument shows curve map.
Embodiment
Embodiment
The vacuum detecting method of the vacuum insulation panel that the present invention proposes is that the part of vacuum seal plate is in, between the lower seal chamber, selection is in, surperficial book rete one position of the vacuum seal plate between the lower seal chamber is as the sensing point of vacuum pressure sensor, to last, the lower seal chamber vacuumizes simultaneously, the deformation that the surperficial book rete of vacuum seal plate can take place outwards to heave, by the laser displacement detector record displacement that sensing point produces because of deformation and the annular seal space that records by vacuum pressure sensor in pressure change and all import in the X-Y function recording instrument, the X-Y function recording instrument shows pressure decline change curve; When the vacuum tightness balance in vacuum tightness in the vacuum annular seal space and the vacuum seal plate, displacement no longer increases, and can observe pressure decline change curve and undergo mutation in the X-Y function recording instrument.The vacuum tightness of sudden change place correspondence can be thought the vacuum tightness in the vacuum seal plate, but concrete corresponding point are not easy to determine.Close vacuum pump, annular seal space is slowly inflated, at this moment observing the second curve in the X-Y function recording instrument is pressure rise change curve, and the vacuum tightness value of the intersection point of two curves or point of contact correspondence promptly is the vacuum tightness in the vacuum seal plate.
See Fig. 1, the vacuum-ness detecting device of the vacuum insulation panel that the present invention proposes, has monitor station 2, laser displacement detector 6, vacuum pressure sensor 7, the X-Y function recording instrument, vacuum pump, described monitor station 2 is fixed on the base 1, also be fixed with swing arm frame 3 on the base 1, the upper surface of described monitor station 2 is provided with groove, form lower seal chamber 2-1, pass through bearing pin 11 hinged swing arms 4 on the swing arm frame 3, be fixed with seal head 5 in the swing arm 4, the bottom surface of seal head 5 is provided with groove, annular seal space 5-1 in the formation, on, lower seal chamber 5-1,5-2 is respectively by last, bottom hose 8-1,8-2 is connected with described vacuum pump, the upper surface of described monitor station 2 and be fixed with lower seal 9-1 around lower seal chamber 5-1 opening, be fixed with O-ring seal 9-2 on the bottom surface of described seal head 5 and around last annular seal space 5-2 opening, last O-ring seal 9-2 is relative with lower seal 9-1; Described laser displacement detector 6 is fixed on the top of seal head 5 centers by support 10, one vacuum pressure sensor 7 is connected with last annular seal space 9-2 by top hose 8-2, and above-mentioned laser displacement detector 6 respectively is connected with the X-Y function recording instrument by lead with vacuum pressure sensor 7.
The operation that utilizes the vacuum tightness of carrying out vacuum insulation panel of above-mentioned vacuum-ness detecting device to detect is as follows: vacuum seal plate A is placed on the monitor station 2, seal head 5 closes, the middle part of vacuum seal plate A is between the upper and lower annular seal space, owing to the setting of last O-ring seal 9-2 and lower seal 9-1, guarantee the sealing property of upper and lower annular seal space.Open laser displacement detector 6 and vacuum pressure sensor 7, start vacuum pump, open evacuating valve, upper and lower annular seal space is vacuumized, the X-Y function recording instrument shows pressure decline change curve; After the pressure decline change curve of observing the X-Y function recording instrument is undergone mutation, close evacuating valve, the slow tonifying Qi of annular seal space, the X-Y function recording instrument shows pressure rise change curve, and the intersection point of pressure decline change curve and pressure rise change curve or the vacuum tightness value of point of contact correspondence promptly are the vacuum tightness in the vacuum seal plate.Fig. 2 is that the X-Y function recording instrument shows curve map, and the curve on the left side is a pressure rise change curve, and the curve on the right is a pressure rise change curve.
Claims (3)
1. the vacuum detecting method of a vacuum insulation panel, it is characterized in that: the part of vacuum seal plate is in, between the lower seal chamber, selection is in, surperficial book rete one position of the vacuum seal plate between the lower seal chamber is as the sensing point of vacuum pressure sensor, to last, the lower seal chamber vacuumizes simultaneously, the deformation that the surperficial book rete of vacuum seal plate can take place outwards to heave, by the laser displacement detector record displacement that sensing point produces because of deformation and the annular seal space that records by vacuum pressure sensor in pressure change and all import in the X-Y function recording instrument, the X-Y function recording instrument shows pressure decline change curve; When the vacuum tightness balance in vacuum tightness in the vacuum annular seal space and the vacuum seal plate, displacement no longer increases, and can observe curve and undergo mutation in the X-Y function recording instrument, and the vacuum tightness of catastrophe point correspondence can be thought the vacuum tightness in the vacuum seal plate.
2. vacuum detecting method according to claim 1, it is characterized in that: when in the X-Y function recording instrument, observe pressure descend to change undergo mutation after, close vacuum pump, annular seal space is carried out slow tonifying Qi, at this moment the X-Y function recording instrument shows pressure rise change curve, and the intersection point of pressure decline change curve and pressure rise change curve or point of contact promptly are the vacuum tightness in the vacuum seal plate.
3. the vacuum-ness detecting device of a vacuum insulation panel, it is characterized in that: have monitor station (2), laser displacement detector (6), vacuum pressure sensor (7), the X-Y function recording instrument, vacuum pump, described monitor station (2) is fixed on the base (1), also be fixed with swing arm frame (3) on the base (1), the upper surface of described monitor station (2) is provided with groove, form lower seal chamber (2-1), swing arm frame (3) is gone up a hinged swing arm (4), be fixed with seal head (5) in the swing arm (4), the bottom surface of seal head (5) is provided with groove, annular seal space in the formation (5-1), on, lower seal chamber (5-1,5-2) respectively by last, bottom hose (8-1,8-2) be connected with described vacuum pump, the upper surface of described monitor station (2) and be fixed with lower seal (9-1) around lower seal chamber (5-1) opening, be fixed with O-ring seal (9-2) on the bottom surface of described seal head (5) and around last annular seal space (5-2) opening, last O-ring seal (9-2) is relative with lower seal (9-1); Described laser displacement detector (6) is fixed on the top of seal head (5) center by support (10), one vacuum pressure sensor (7) is connected with last annular seal space (9-2) by top hose (8-2), and each is connected above-mentioned laser displacement detector (6) and vacuum pressure sensor (7) with the X-Y function recording instrument by lead.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105476410A CN102062666B (en) | 2010-11-17 | 2010-11-17 | Vacuum degree detecting method and device for vacuum heat insulating plate |
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| CN2010105476410A CN102062666B (en) | 2010-11-17 | 2010-11-17 | Vacuum degree detecting method and device for vacuum heat insulating plate |
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| CN102062666A true CN102062666A (en) | 2011-05-18 |
| CN102062666B CN102062666B (en) | 2012-07-04 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620883A (en) * | 2012-04-12 | 2012-08-01 | 厦门大学 | Vacuum degree on-line detection device and vacuum degree on-line detection method of vacuum thermal insulation board |
| CN103063362A (en) * | 2013-02-27 | 2013-04-24 | 青岛科瑞新型环保材料有限公司 | Detection method for vacuum degree of external vacuum thermal insulation board |
| CN103063361A (en) * | 2013-02-27 | 2013-04-24 | 青岛科瑞新型环保材料有限公司 | Vacuum degree detection method of built-in type vacuum insulated panel |
| CN104303034A (en) * | 2012-02-03 | 2015-01-21 | 卡尔朗环球有限公司 | Vacuum insulation panel quality control systems and methods for using same |
| CN104374518A (en) * | 2013-08-12 | 2015-02-25 | 苏州维艾普新材料股份有限公司 | Device and method for measuring vacuum degree inside vacuum thermal insulation panel |
| CN104369921A (en) * | 2013-08-12 | 2015-02-25 | 苏州维艾普新材料股份有限公司 | Device and method for measuring internal pressure of bag during packaging of vacuum insulated panel |
| CN104880276A (en) * | 2015-06-01 | 2015-09-02 | 安徽百特新材料科技有限公司 | Vacuum insulation panel vacuum degree detection equipment |
| CN105509959A (en) * | 2015-11-26 | 2016-04-20 | 国网山西省电力公司临汾供电公司 | Laser-method vacuum tube vacuum degree nondestructive test method |
| CN106092436A (en) * | 2016-06-23 | 2016-11-09 | 南京凤源新材料科技有限公司 | A kind of vacuum heat-insulating plate internal pressure measurement device and method of testing thereof |
| CN106197821A (en) * | 2016-06-24 | 2016-12-07 | 南京凤源新材料科技有限公司 | A kind of table full-automatic wireless remote control vacuum heat-insulating plate internal pressure measurement device |
| CN106596627A (en) * | 2016-12-05 | 2017-04-26 | 苏州维艾普新材料股份有限公司 | Measurement method for improving accuracy of evaluating initial thermal conductivities of vacuum insulation panels |
| CN108489689A (en) * | 2018-03-20 | 2018-09-04 | 深圳市星汉激光科技有限公司 | A kind of container leak hunting method and container leakage detection system |
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| CN101788364A (en) * | 2010-01-29 | 2010-07-28 | 翟传伟 | Vacuum-degree detection device of vacuum thermal-insulation plate |
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2010
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Patent Citations (5)
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| JPS60210748A (en) * | 1984-04-03 | 1985-10-23 | Matsushita Refrig Co | Apparatus for inspecting vacuum degree of package |
| US4709578A (en) * | 1984-10-30 | 1987-12-01 | Nippon Sanso Kabushiki Kaisha | Method and apparatus for determinating a vacuum degree within a flexible vacuum package |
| JP2002310834A (en) * | 2001-04-11 | 2002-10-23 | Matsushita Refrig Co Ltd | Internal pressure inspection method for packaged body |
| EP1813928A2 (en) * | 2005-11-30 | 2007-08-01 | John Rooney | An apparatus for detecting a leak |
| CN101788364A (en) * | 2010-01-29 | 2010-07-28 | 翟传伟 | Vacuum-degree detection device of vacuum thermal-insulation plate |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104303034A (en) * | 2012-02-03 | 2015-01-21 | 卡尔朗环球有限公司 | Vacuum insulation panel quality control systems and methods for using same |
| CN102620883A (en) * | 2012-04-12 | 2012-08-01 | 厦门大学 | Vacuum degree on-line detection device and vacuum degree on-line detection method of vacuum thermal insulation board |
| CN103063362A (en) * | 2013-02-27 | 2013-04-24 | 青岛科瑞新型环保材料有限公司 | Detection method for vacuum degree of external vacuum thermal insulation board |
| CN103063361A (en) * | 2013-02-27 | 2013-04-24 | 青岛科瑞新型环保材料有限公司 | Vacuum degree detection method of built-in type vacuum insulated panel |
| CN104374518A (en) * | 2013-08-12 | 2015-02-25 | 苏州维艾普新材料股份有限公司 | Device and method for measuring vacuum degree inside vacuum thermal insulation panel |
| CN104369921A (en) * | 2013-08-12 | 2015-02-25 | 苏州维艾普新材料股份有限公司 | Device and method for measuring internal pressure of bag during packaging of vacuum insulated panel |
| CN104880276A (en) * | 2015-06-01 | 2015-09-02 | 安徽百特新材料科技有限公司 | Vacuum insulation panel vacuum degree detection equipment |
| CN105509959A (en) * | 2015-11-26 | 2016-04-20 | 国网山西省电力公司临汾供电公司 | Laser-method vacuum tube vacuum degree nondestructive test method |
| CN105509959B (en) * | 2015-11-26 | 2019-03-05 | 国网山西省电力公司临汾供电公司 | A kind of method of laser method non-destructive testing vacuum tube vacuum-degree |
| CN106092436A (en) * | 2016-06-23 | 2016-11-09 | 南京凤源新材料科技有限公司 | A kind of vacuum heat-insulating plate internal pressure measurement device and method of testing thereof |
| CN106092436B (en) * | 2016-06-23 | 2019-01-04 | 苏州宏久航空防热材料科技有限公司 | A kind of vacuum heat-insulating plate internal pressure measurement device and its test method |
| CN106197821A (en) * | 2016-06-24 | 2016-12-07 | 南京凤源新材料科技有限公司 | A kind of table full-automatic wireless remote control vacuum heat-insulating plate internal pressure measurement device |
| CN106596627A (en) * | 2016-12-05 | 2017-04-26 | 苏州维艾普新材料股份有限公司 | Measurement method for improving accuracy of evaluating initial thermal conductivities of vacuum insulation panels |
| CN108489689A (en) * | 2018-03-20 | 2018-09-04 | 深圳市星汉激光科技有限公司 | A kind of container leak hunting method and container leakage detection system |
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| CN102062666B (en) | 2012-07-04 |
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Assignee: CHANGZHOU SANYOU DIOR INSULATION MATERIALS MFG CO., LTD. Assignor: Mi Qiang Contract record no.: 2012320000530 Denomination of invention: Vacuum degree detection device of vacuum thermal insulation board License type: Exclusive License Open date: 20110518 Record date: 20120424 |
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Effective date of registration: 20150824 Address after: 213000 Jiangsu city of Changzhou province Wujin fruit Road Economic Development Zone No. 10 Patentee after: CHANGZHOU SANYOU DIOR INSULATION MATERIALS MFG CO., LTD. Address before: No. 2 Lake Institute of science and technology, Jiangsu province 213023 Changzhou Tenglong Wujin Road Economic Development Zone No. 3 building A Patentee before: Mi Qiang |
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Address after: 213000 Jiangsu city of Changzhou province Wujin fruit Road Economic Development Zone No. 10 Patentee after: JIANGSU SHANYOU DIAO ENERGY SAVING NEW MATERIAL CO., LTD. Address before: 213000 Jiangsu city of Changzhou province Wujin fruit Road Economic Development Zone No. 10 Patentee before: CHANGZHOU SANYOU DIOR INSULATION MATERIALS MFG CO., LTD. |
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Address after: 213000 No. 10, fruit Road, Wujin Economic Development Zone, Jiangsu, Changzhou, China Patentee after: Jiangsu Shanyou Diao Energy Saving New Material Co.,Ltd. Address before: No.10 Guoxiang Road, Wujin economic development zone, Jiangsu 213000 Patentee before: Jiangsu Shanyou Diao Energy Saving New Material Co.,Ltd. |
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