CN104181192A - Device for judging heat-insulating property of vacuum insulation panel through eddy-current method - Google Patents
Device for judging heat-insulating property of vacuum insulation panel through eddy-current method Download PDFInfo
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- CN104181192A CN104181192A CN201410406773.XA CN201410406773A CN104181192A CN 104181192 A CN104181192 A CN 104181192A CN 201410406773 A CN201410406773 A CN 201410406773A CN 104181192 A CN104181192 A CN 104181192A
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Abstract
The invention discloses a device for judging heat-insulating property of a vacuum insulation panel through an eddy-current method. The device is characterized by comprising a circular eddy-current heating source, a high-temperature infrared temperature measuring probe, three low-temperature infrared temperature measuring probes, a numerical value display, a singlechip temperature control module and a singlechip frequency conversion circuit module, wherein a plane formed by the four infrared temperature measuring probes is parallel to a plane of the eddy-current heating source; and the singlechip is connected with the eddy-current heating source, the infrared temperature measuring probes and the numerical value display. The data fed back by the infrared temperature measuring probes is received and displayed on the numerical value display, and power on/off of the eddy-current heating source is controlled. The three groups of low-temperature infrared temperature measuring probes simultaneously measure to obtain an average value, and the result is high in precision and credibility. The testing time is extremely short and is between 10 and 12 seconds, and the testing efficiency of the device disclosed by the invention greatly exceeds that of original rapid detection equipment. According to the device, the upper limit of heating temperature is strictly controlled, thermal damage to a film material of the vacuum insulation panel is avoided, and real nondestructive testing is realized.
Description
Technical field
The present invention relates to a kind of device of judging Thermal Insulation Effect of Vacuum Insulated Panel, particularly a kind of eddy-current method is judged the device of Thermal Insulation Effect of Vacuum Insulated Panel.
Background technology
Vacuum heat-insulating plate is the novel ultra high efficiency heat-insulating plate of one occurring in recent years, and it is mainly made up of core, Obstruct membrane and getter three parts.Because it is in conjunction with the advantage of vacuum insulation and the adiabatic two kinds of adiabatic methods of particulate, improve to greatest extent vacuum tightness in plate, realizing thermal insulation thereby reduce the convection current of gas, therefore have extremely low coefficient of heat conductivity and excellent heat-insulating property, is state-of-the-art thermal insulation material in the world at present.At present, the detection method of the internal pressure of vacuum heat-insulating plate there is no national standard now, can only formulate industry standard by manufacturing enterprise.
The detection technique of VIP is mainly divided into two kinds at present: conventional sense method and fast detection method.Conventional sense method is to adopt in the world general heat flow meter method, directly measures the thermal conductivity value of VIP, differentiates the heat-insulating property of VIP with this.The instrument of the HC-074 series of EKO company of Japan development, makes based on the method exactly.Fast detecting is higher with respect to conventional sense efficiency, there is more wide market and application prospect, λ-MeterEP500e Determination of conductive coefficients instrument that lambda measuring technique company of Germany produces is widely used in Germany, detects for the production of product sampling observation and process on line.The HC-120 series VIP detector that EKO company releases, coordinates HC-074-600 series, and the time shorten that makes to detect a sheet material be only 6 minutes, has realized faster detection.But, still fast not.
Chinese patent CN103926272A (open day is on July 16th, 2014) discloses a kind of heat conductivity of vacuum insulation panel on-line measurement device and measuring method thereof.This device is provided with internal measurement module and externally measured module; Described internal measurement module is provided with receiving coil, wireless charging receiving circuit, heating control circuit, temperature sensing circuit, RC oscillatory circuit and signal transmitting probe; Described externally measured module is provided with wireless charging radiating circuit, transmitting coil, probe receiver, amplifying circuit, filtering circuit and signal processing module.Make the Quick Measurement of the heat conductivity of vacuum insulation panel in the fields such as refrigerator become possibility, and met the requirement of heat conductivity of vacuum insulation panel on-site on-line measurement, promoted the extensive and safe application of vacuum heat-insulating plate.But this device need to be provided with internal module in vacuum heat-insulating plate, cost of manufacture is huge, has changed the original structure of vacuum heat-insulating plate simultaneously, does not belong to Non-Destructive Testing.
Summary of the invention
Object of the present invention is intended to overcome the deficiencies in the prior art, provides a kind of eddy-current method to judge the device of Thermal Insulation Effect of Vacuum Insulated Panel.
For the technical scheme that realizes object employing of the present invention is: provide a kind of eddy-current method to judge the device of Thermal Insulation Effect of Vacuum Insulated Panel, it is characterized in that this device has circular eddy-current heating source, a high-temperature infrared temperature probe, three low temperature infrared temperature probes, temperature control module, numerical value display, single-chip microcomputer and frequency changer circuit modules; The wherein plan range eddy-current heating source plane parallel of four infrared temperature probe compositions; Single-chip microcomputer is connected with eddy-current heating source, infrared temperature probe, numerical value display; Accepting data that infrared temperature probe feeds back and by data reality on numerical value display, the power on/off of controlled vortex flow pyrotoxin.
The radius in described eddy-current heating source between 6cm～10cm, with the distance of tested vacuum heat-insulating plate be 3～8cm.
Three described low temperature infrared temperature probes are equilateral triangle within being positioned at the circle in eddy-current heating source between probe, leg-of-mutton center overlaps with the center of circle of circular pyrotoxin.
Described high-temperature infrared temperature probe, within equilateral triangle, is limited to 100 DEG C～135 DEG C, adjustable settings on thermometric.Exceed capping if detect, feedback information is to single-chip microcomputer immediately for temperature control module, and single-chip microcomputer sends instruction, and eddy heating for heating source quits work.
Described frequency changer circuit module can change the 0.05KHZ of civilian alternating current into electric current, and frequency is 15KHZ～40KHZ for multiselect.
Effect: the present invention compared with prior art, has the following advantages:
1) three groups of low temperature infrared temperature probes are measured and are averaged simultaneously, and result is accurately with a high credibility; 2) test duration extremely short, between 10s～12s, surmounted widely the testing efficiency of original fast detecting equipment, the fastest testing efficiency of same category of device is 6min a slice; 3) the strict upper temperature limit of controlling heating of device, prevents the film material of vacuum heat-insulating plate to cause fire damage, accomplishes real Non-Destructive Testing.
Brief description of the drawings
Fig. 1 eddy-current method of the present invention is judged the schematic side view of the device of Thermal Insulation Effect of Vacuum Insulated Panel.
Fig. 2 eddy-current method of the present invention is judged the distribution plan of the infrared temperature probe of the device of Thermal Insulation Effect of Vacuum Insulated Panel.
In figure, 10. eddy-current heating source, 20. infrared temperature probes, 30. vacuum heat-insulating plates, 21. low temperature infrared temperature probe one, 22. high-temperature infrared temperature probes, 23. low temperature infrared temperature probe two, 24. low temperature infrared temperature probes three.
Embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims to the amendment of the various equivalent form of values of the present invention and limit.
Embodiment
Eddy-current method is judged a device for Thermal Insulation Effect of Vacuum Insulated Panel, it is characterized in that this device has circular eddy-current heating source, a high-temperature infrared temperature probe, three low temperature infrared temperature probes, numerical value display, single-chip microcomputer temperature control module and single-chip microcomputer frequency changer circuit modules.The wherein plan range eddy-current heating source plane parallel of four infrared temperature probe compositions, distance is 1cm.Single-chip microcomputer is connected with eddy-current heating source, infrared temperature probe, numerical value display.Accepting data that infrared temperature probe feeds back and by data reality on numerical value display, the power on/off of controlled vortex flow pyrotoxin.
Above are only single embodiment of the present invention, but design concept of the present invention is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should belong to the behavior of invading the scope of protection of the invention.In every case be the content that does not depart from technical solution of the present invention, any type of simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (6)
1. eddy-current method is judged a device for Thermal Insulation Effect of Vacuum Insulated Panel, it is characterized in that this device has circular eddy-current heating source, a high-temperature infrared temperature probe, three low temperature infrared temperature probes, numerical value display, single-chip microcomputer temperature control module and single-chip microcomputer frequency changer circuit modules; The wherein plan range eddy-current heating source plane parallel of four infrared temperature probe compositions; Single-chip microcomputer is connected with eddy-current heating source, infrared temperature probe, numerical value display; Accepting data that infrared temperature probe feeds back and by data reality on numerical value display, the power on/off of controlled vortex flow pyrotoxin.
2. according to device claimed in claim 1, it is characterized in that the distance 3～8cm of this device eddy-current heating spacing from tested vacuum heat-insulating plate.
3. according to device claimed in claim 1, it is characterized in that being equilateral triangle between three low temperature infrared temperature probes of this device, equilateral center overlaps with the center of circle of circular pyrotoxin, and high-temperature infrared temperature probe is within equilateral triangle.
4. according to device claimed in claim 1, it is characterized in that the radius of the circular pyrotoxin of this device is between 6cm～10cm, all infrared temperature probes are all within the circle in eddy-current heating source.
5. according to device claimed in claim 1, it is characterized in that being limited to 100 DEG C～135 DEG C on this device high-temperature infrared temperature probe thermometric, can set; Exceed capping if detect, feedback information is to single-chip microcomputer immediately for temperature control module, and single-chip microcomputer sends instruction, and eddy heating for heating source quits work.
6. according to device claimed in claim 1, it is characterized in that the frequency changer circuit module of this device changes the 0.05KHZ of civilian alternating current into power frequency multiselect 15KHZ-40KHZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406773.XA CN104181192A (en) | 2014-08-18 | 2014-08-18 | Device for judging heat-insulating property of vacuum insulation panel through eddy-current method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406773.XA CN104181192A (en) | 2014-08-18 | 2014-08-18 | Device for judging heat-insulating property of vacuum insulation panel through eddy-current method |
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| CN104181192A true CN104181192A (en) | 2014-12-03 |
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| CN201410406773.XA Pending CN104181192A (en) | 2014-08-18 | 2014-08-18 | Device for judging heat-insulating property of vacuum insulation panel through eddy-current method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201560336U (en) * | 2009-11-18 | 2010-08-25 | 上海赛航洗涤设备有限公司 | Ironing machine drying drum with electromagnetic induction heating |
| CN201828535U (en) * | 2010-10-25 | 2011-05-11 | 上海海事大学 | Device for rapidly testing heat conductivity of vacuum insulation panel |
| CN202403868U (en) * | 2012-01-06 | 2012-08-29 | 厦门大学 | Vacuum degree measuring device for vacuum heat insulation plate |
| CN103175700A (en) * | 2013-02-26 | 2013-06-26 | 同济大学 | High-speed train brake disc air-pumping effect and dynamic heat-dissipation characteristic testing device |
| CN103472092A (en) * | 2013-09-17 | 2013-12-25 | 华东交通大学 | Partial least squares regression-based modeling method of infrared nondestructive testing electromagnetic excitation mathematical model |
| CN103728338A (en) * | 2013-08-12 | 2014-04-16 | 太仓派欧技术咨询服务有限公司 | Device and method for electromagnetically testing heat conduction coefficient |
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2014
- 2014-08-18 CN CN201410406773.XA patent/CN104181192A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201560336U (en) * | 2009-11-18 | 2010-08-25 | 上海赛航洗涤设备有限公司 | Ironing machine drying drum with electromagnetic induction heating |
| CN201828535U (en) * | 2010-10-25 | 2011-05-11 | 上海海事大学 | Device for rapidly testing heat conductivity of vacuum insulation panel |
| CN202403868U (en) * | 2012-01-06 | 2012-08-29 | 厦门大学 | Vacuum degree measuring device for vacuum heat insulation plate |
| CN103175700A (en) * | 2013-02-26 | 2013-06-26 | 同济大学 | High-speed train brake disc air-pumping effect and dynamic heat-dissipation characteristic testing device |
| CN103728338A (en) * | 2013-08-12 | 2014-04-16 | 太仓派欧技术咨询服务有限公司 | Device and method for electromagnetically testing heat conduction coefficient |
| CN103472092A (en) * | 2013-09-17 | 2013-12-25 | 华东交通大学 | Partial least squares regression-based modeling method of infrared nondestructive testing electromagnetic excitation mathematical model |
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Address after: 215400 Chengxiang City, Taicang Province town of the People South Road, No. 162, No. Applicant after: TAICANG PAIOU TECHNOLOGY CONSULTATION SERVICE CO., LTD. Address before: Taicang City, Suzhou City, Jiangsu Province, and 215400 Metro Jianxiong Road No. 20 Applicant before: TAICANG PAIOU TECHNOLOGY CONSULTATION SERVICE CO., LTD. |
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Application publication date: 20141203 |