CN111579585A - Vacuum glass heat transfer performance testing arrangement - Google Patents
Vacuum glass heat transfer performance testing arrangement Download PDFInfo
- Publication number
- CN111579585A CN111579585A CN202010440344.XA CN202010440344A CN111579585A CN 111579585 A CN111579585 A CN 111579585A CN 202010440344 A CN202010440344 A CN 202010440344A CN 111579585 A CN111579585 A CN 111579585A
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- China
- Prior art keywords
- vacuum glass
- protective cover
- glass
- thermocouple
- heat transfer
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 239000011521 glass Substances 0.000 title claims abstract description 72
- 238000012360 testing method Methods 0.000 title claims abstract description 16
- 238000012546 transfer Methods 0.000 title claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000009659 non-destructive testing Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
A vacuum glass heat transfer performance testing device belongs to the technical field of vacuum glass nondestructive testing and is formed by connecting vacuum glass, a protective cover, a heat insulation layer, a positive electrode, a copper plate, a power supply, an insulation connecting column, a negative electrode, a thermocouple, a supporting table, a computer and a data collector.
Description
Technical Field
The invention belongs to the technical field of nondestructive testing of vacuum glass, and particularly relates to a device for testing heat transfer performance of vacuum glass.
Background
The vacuum glass has the advantages of low heat transfer coefficient, high anti-condensation coefficient, good heat preservation performance, long service life and the like, thereby being widely applied. With the storage and use time of the vacuum glass being prolonged, the heat-insulating sealing material is inevitably aged, so that the vacuum degree of the vacuum glass is reduced, and the heat-insulating performance and the use effect of the vacuum glass are influenced, therefore, how to measure the heat-insulating performance of the vacuum glass is the key for ensuring the quality of each vacuum glass.
Disclosure of Invention
The invention aims to effectively measure the temperature distribution and the thermal resistance value of vacuum glass, and provides a vacuum glass heat transfer performance testing device which can accurately measure the heat insulation performance of the vacuum glass and further improve the quality of the vacuum glass.
The technical scheme of the invention is as follows: a vacuum glass heat transfer performance testing device comprises a data collector connected with a computer, vacuum glass, a first supporting table and a second supporting table, wherein the first supporting table and the second supporting table are arranged on one side of the computer; the method is characterized in that: the second brace table sets up the inboard of first brace table, the vacuum glass tiling the top of second brace table, the top of first brace table is equipped with the safety cover, the safety cover inner wall is equipped with the insulating layer, fixed positive electrode and the negative electrode of being equipped with on the safety cover, the inside copper that is equipped with of safety cover, the copper passes through the insulating spliced pole and is connected fixedly with the interior top surface of safety cover, the bottom of positive electrode and negative electrode all with the copper is connected, the safety cover top is equipped with the power, positive electrode and negative electrode top pass through the circuit and link to each other with the positive negative pole of power respectively, the fixed first thermocouple that is equipped with in one side of safety cover, the fixed second thermocouple that is equipped with in bottom of vacuum glass lower floor glass, first thermocouple and second thermocouple pass through the circuit respectively with data collection station connects.
First brace table and second brace table are "return" font brace table, and the bottom coplane of both, vacuum glass upper glass is a little higher than the bottom of safety cover.
The first thermocouples are fixedly arranged on one side of the protective cover, and the second thermocouples are distributed and arranged at the bottom of the lower layer glass of the vacuum glass in a shape like a Chinese character 'tian'.
The first thermocouple, the second thermocouple, the data acquisition unit and the computer are connected to form a thermal resistance value data processing system.
The vacuum glass upper glass layer is higher than the bottom of the protective cover, so that an airtight containing cavity is formed between the upper glass layer and the protective cover, and the protective cover is internally provided with a heat insulation layer to prevent the airtight containing cavity from carrying out heat exchange with the outside.
The invention has the beneficial effects that: the invention provides a vacuum glass heat transfer performance testing device, which is formed by connecting vacuum glass, a protective cover, a heat insulation layer, a positive electrode, a copper plate, a power supply, an insulation connecting column, a negative electrode, a thermocouple, a supporting table, a computer and a data collector.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view showing the installation position of a second thermocouple in the present invention.
In the figure: the device comprises vacuum glass 1, a protective cover 2, a heat insulation layer 3, a positive electrode 4, a copper plate 5, a power supply 6, an insulation connecting column 7, a negative electrode 8, a first thermocouple 9, a first supporting table 10, a second supporting table 11, a computer 12, a data acquisition unit 13 and a second thermocouple 14.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-2, a vacuum glass heat transfer performance testing device comprises a data collector 13 connected with a computer, a vacuum glass 1, and a first supporting table 10 and a second supporting table 11 arranged on one side of the computer 12; second brace table 11 sets up the inboard at first brace table 10, vacuum glass 1 is tiled in the top of second brace table 11, the top of first brace table 10 is equipped with safety cover 2, 2 inner walls of safety cover are equipped with insulating layer 3, the fixed positive electrode 4 and the negative electrode 8 that are equipped with on safety cover 2, the inside copper 5 that is equipped with of safety cover 2, copper 5 is connected fixedly through insulating spliced pole 7 and the interior top surface of safety cover 2, the bottom of positive electrode 4 and negative electrode 8 all is connected with copper 5, 2 tops of safety cover are equipped with power 6, positive electrode 4 and 8 tops of negative electrode link to each other with the positive negative pole of power 6 respectively through the circuit, the fixed first thermocouple 9 that is equipped with in one side of safety cover 2, the fixed second thermocouple 14 that is equipped with in the bottom of vacuum glass 1 lower floor's glass, first thermocouple 9 and second thermocouple 14 pass.
As shown in fig. 1-2, in the vacuum glass heat transfer performance testing device, a first supporting table 10 and a second supporting table 11 are both a support table shaped like a Chinese character 'hui', the bottoms of the two support tables are coplanar, and the upper layer glass of a vacuum glass 1 is slightly higher than the bottom of a protective cover 2; the first thermocouple 9 is fixedly arranged on one side of the protective cover 2, and the second thermocouples 14 are distributed and arranged at the bottom of the lower layer glass of the vacuum glass 1 in a shape of Chinese character 'tian'; the first thermocouple 9, the second thermocouple 14, the data collector 13, the computer 12 connect and make up the data processing system of thermal resistance value; the upper layer of glass of the vacuum glass 1 is higher than the bottom of the protective cover 2, so that a closed containing cavity is formed between the upper layer of glass and the protective cover 2, and the protective cover 2 is internally provided with a heat insulating layer 3 to prevent the closed containing cavity from carrying out heat exchange with the outside.
As shown in fig. 1-2, the testing principle of the vacuum glass heat transfer performance testing device is as follows: the positive electrode 4 and the negative electrode 8 are fixedly arranged on the protective cover 2, the bottoms of the positive electrode 4 and the negative electrode 8 are fixedly arranged on the copper plate 5, the top of the copper plate is respectively connected with the positive electrode and the negative electrode of the power supply 6 through circuits, the copper plate is electrified to generate heat, the temperature of the closed containing cavity rises, so that the upper layer glass and the lower layer glass of the vacuum glass form a temperature gradient, and the heat flow is enabled to completely vertically penetrate through the surface of the vacuum glass without side diffusion. Copper 5 connects fixed mounting in safety cover 2 through insulating spliced pole 7, and insulating spliced pole 7 fixed mounting has more effectually prevented thermal loss on safety cover 2. The first thermocouple 9 is fixedly installed at one side of the protection cover 2 to obtain the temperature of the upper glass of the vacuum glass. The data connection collector 13 is connected with the first thermocouple 9 and the second thermocouple 14 through lines, directly collects electric signals transmitted by the first thermocouple 9 and the second thermocouple 14 and converts the electric signals into corresponding digital signals to be sent to the computer 12, the computer 12 is connected with the data connection collector 13 through lines, receives the digital signals transmitted by the data collector, calculates the thermal resistance value by combining the relational expression among the voltage, the current and the heat flow of the power supply, and displays the thermal resistance value. The second thermocouples 14 are distributed and installed at the bottom of the lower layer glass of the vacuum glass 1 in a shape like a Chinese character tian, so that the temperatures of different positions of the lower layer glass are obtained, and the average value of the thermal resistance of the vacuum glass can be calculated more accurately.
Claims (5)
1. A vacuum glass heat transfer performance testing device comprises a data collector (13) connected with a computer, vacuum glass (1), a first supporting table (10) and a second supporting table (11) which are arranged on one side of the computer (12); the method is characterized in that: the second supporting table (11) is arranged on the inner side of the first supporting table (10), the vacuum glass (1) is tiled above the second supporting table (11), the protective cover (2) is arranged above the first supporting table (10), the inner wall of the protective cover (2) is provided with the heat insulation layer (3), the protective cover (2) is fixedly provided with the positive electrode (4) and the negative electrode (8), the copper plate (5) is arranged inside the protective cover (2), the copper plate (5) is fixedly connected with the inner top surface of the protective cover (2) through the insulation connecting column (7), the bottoms of the positive electrode (4) and the negative electrode (8) are both connected with the copper plate (5), the top of the protective cover (2) is provided with the power supply (6), the tops of the positive electrode (4) and the negative electrode (8) are respectively connected with the positive electrode and the negative electrode of the power supply (6) through circuits, and one side of the protective cover (2) is fixedly provided with, and a second thermocouple (14) is fixedly arranged at the bottom of the lower layer of glass of the vacuum glass (1), and the first thermocouple (9) and the second thermocouple (14) are respectively connected with the data acquisition unit (13) through lines.
2. The vacuum glass heat transfer performance testing device of claim 1, wherein: first brace table (10) and second brace table (11) are "returning" font brace table, and the bottom coplane of both, vacuum glass (1) upper glass is a little higher than the bottom of safety cover (2).
3. The vacuum glass heat transfer performance testing device of claim 1, wherein: the first thermocouples (9) are fixedly arranged on one side of the protective cover (2), and the second thermocouples (14) are distributed and arranged at the bottom of the lower layer glass of the vacuum glass (1) in a shape like the Chinese character 'tian'.
4. The vacuum glass heat transfer performance testing device of claim 1, wherein: the first thermocouple (9), the second thermocouple (14), the data collector (13) and the computer (12) are connected to form a thermal resistance value data processing system.
5. The vacuum glass heat transfer performance testing device of claim 1, wherein: vacuum glass (1) upper glass is higher than safety cover (2) bottom for form an inclosed appearance chamber between upper glass and safety cover (2), safety cover (2) inside is provided with insulating layer (3), carries out the heat exchange in order to prevent inclosed appearance chamber and the external world.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440344.XA CN111579585A (en) | 2020-05-22 | 2020-05-22 | Vacuum glass heat transfer performance testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440344.XA CN111579585A (en) | 2020-05-22 | 2020-05-22 | Vacuum glass heat transfer performance testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111579585A true CN111579585A (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010440344.XA Pending CN111579585A (en) | 2020-05-22 | 2020-05-22 | Vacuum glass heat transfer performance testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111579585A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200986530Y (en) * | 2006-08-29 | 2007-12-05 | 王世忠 | Building glass heat transfer coefficient determinator |
| CN101241091A (en) * | 2007-02-08 | 2008-08-13 | 北京秦润玻璃有限公司 | Building glass steady state heat resistance measuring equipment |
| CN103376274A (en) * | 2012-04-12 | 2013-10-30 | 北京新立基真空玻璃技术有限公司 | Method and device for quickly measuring heat resistance of vacuum glass |
| CN108663397A (en) * | 2017-03-31 | 2018-10-16 | 青岛理工大学 | Thermal conductivity measuring device for vacuum glass |
-
2020
- 2020-05-22 CN CN202010440344.XA patent/CN111579585A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200986530Y (en) * | 2006-08-29 | 2007-12-05 | 王世忠 | Building glass heat transfer coefficient determinator |
| CN101241091A (en) * | 2007-02-08 | 2008-08-13 | 北京秦润玻璃有限公司 | Building glass steady state heat resistance measuring equipment |
| CN103376274A (en) * | 2012-04-12 | 2013-10-30 | 北京新立基真空玻璃技术有限公司 | Method and device for quickly measuring heat resistance of vacuum glass |
| CN108663397A (en) * | 2017-03-31 | 2018-10-16 | 青岛理工大学 | Thermal conductivity measuring device for vacuum glass |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200825 |