CN107621342A - A kind of method and device for lifting sulfur hexafluoride gas infrared detection sensitivity - Google Patents
A kind of method and device for lifting sulfur hexafluoride gas infrared detection sensitivity Download PDFInfo
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- CN107621342A CN107621342A CN201710700634.1A CN201710700634A CN107621342A CN 107621342 A CN107621342 A CN 107621342A CN 201710700634 A CN201710700634 A CN 201710700634A CN 107621342 A CN107621342 A CN 107621342A
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- infrared
- sulfur hexafluoride
- detection sensitivity
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- hexafluoride gas
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Abstract
The present invention relates to a kind of method and device for lifting sulfur hexafluoride gas infrared detection sensitivity, this method content includes：Increase emittance of the infrared band light to indoor tested measurement equipment, increase the reflection of equipment, the contrast that increase SF6 gases are formed to infrared band optical absorption with this, then detected by infrared thermoviewer.The device includes:Including insulated handle, mounting disc is integrally made in insulated handle upper end, carborundum tube is fixed with mounting disc, the nichrome resistance wire to extend along carborundum tube is installed in carborundum tube, coating is externally coated with carborundum tube, the mains lighting supply line of connection nichrome resistance wire is coated with the bottom of insulated handle.The present invention radiates 3.5 13um wavelength infrared rays by infrared illumination lamp, makes equipment in the enhancing of this wave band infrared reflection, assistance infrared thermal imaging leak detecting SF6 gas leakage points that are quick, accurate, easily finding simultaneously GIS device in orientation room.
Description
Technical field
The invention belongs to gas leak detection technology field, particularly a kind of lifting sulfur hexafluoride gas infrared detection is sensitive
The method and device of degree.
Background technology
At present, SF6 gases are due to its superior electric property (extremely strong insulation can recover fast with dielectric strength), as exhausted
Edge medium is widely used in the electrical equipments such as transformer, primary cut-out.And SF6 gases will realize its electrical characteristic, its
On condition that SF6 gases need to maintain certain density in equipment, therefore there are strict requirements for the sealing of equipment.If in equipment
SF6 gases leak, and may cause in equipment gas moisture is exceeded to cause inside analyte reaction etching apparatus, seriously may
Decreasing insulating is caused to cause high-pressure side disruptive discharge.
Compared with traditional oils switchgear seepage, SF6 switchgear gas leakage has the characteristics that：(1) there is disguise, no
Can directly it be found, it is necessary to carry out finding leak source with the method for science；(2) leakage pressure directly affects opening for breaker after reducing
The insulating properties of disconnected performance and equipment；(3) tonifying Qi repeatedly, tonifying Qi technique is out of control in addition, easily causes gas excessive water content, open circuit
Device overall performance deteriorates；(4) type of leak source is various, not just seal problem, in addition to sprue gate sand holes, weld seam sand holes,
The types such as pressure gauge gas leakage.
In recent years, infrared imaging leak hunting technology because it hunts leak compared to qualitative leak detector, wrap up plus quantitative leak detector leak detection,
The modes such as laser imager leak detection, there is the advantages such as directly perceived, the precision and efficiency of detecting height of detection, more ripe is applied to SF6
The live detection of electrical equipment, as shown in Figure 1, it was found that substantial amounts of leakage failure.
However, still suffer from many restraining factors for SF6 infrared leakage Site Detections.Infrared thermal imaging leak detecting utilizes
SF6 gases are extremely strong for specific wavelength (10.3-10.7um wavelength) optical absorption characteristics are compared with air, cause both to reflect infrared
Image is different, the gas leakage that can't see under light can be will be seen that, with reflecting for the formal intuition of Infrared video image.Work as room
During interior Site Detection, on the one hand because electrical equipment and the environment temperature temperature difference are smaller, infrared thermography is caused to be difficult to pair
Surrounding objects are accurately focused, and cause leakage point image blur so that being difficult to find, another aspect indoor infrared line attenuation is serious, adds
Air leakage it is smaller, SF6 gases are also smaller to 10.3-10.7um wavelength infrared absorption capacity, infrared thermography imaging is difficult to shape
Into obvious imaging contrast, so that leak source missing inspection.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, to propose that a kind of lifting sulfur hexafluoride gas infrared detection is sensitive
The method and device of degree.
The present invention solves its technical problem and takes following technical scheme to realize：
A kind of method for lifting sulfur hexafluoride gas infrared detection sensitivity, the content of this method include：Increase infrared waves
Duan Guang increases the reflection of equipment with this, increase SF6 gases are to infrared band light absorbs to the emittance of indoor tested measurement equipment
The formed contrast of effect, then detected by infrared thermoviewer.
Moreover, the infrared band light is specially infrared band light of the wavelength between 10.3um-10.7um.
A kind of equipment of lifting sulfur hexafluoride gas infrared detection sensitivity method suitable for described in claim 1, should
Equipment includes insulated handle, integrally makes mounting disc in insulated handle upper end, carborundum tube is fixed with mounting disc, be carbonized
The nichrome resistance wire to extend along carborundum tube is installed in silicone tube, coating is externally coated with carborundum tube, in insulation hand
The bottom of handle is coated with the mains lighting supply line of connection nichrome resistance wire.
Moreover, the mass percent constituent content of the coating is：Al2O3：28-35wt%；SiO2：30-40wt%；
CaO：15-20wt% surpluses are SiC, and the coating deposit thickness is 100-300um.
Moreover, the coating of the coating uses magnetron sputtering method, plasma spraying method, e-beam evaporation or plasma
Strengthen one kind in chemical vapour deposition technique.
Moreover, the power of the nichrome resistance wire is 500w, operating voltage 220v
The advantages and positive effects of the present invention are：
1st, the present invention makes equipment in this wave band by the radiation-curable 3.5-13um wavelength infrared ray of hand-held infrared illumination lamp
Infrared reflection strengthens, and infrared thermal imaging leak detecting can be assisted quickly, accurately, easily to find simultaneously GIS device in orientation room
SF6 gas leakage points.
2nd, apparatus of the present invention have simple in construction, easy to operate, it is fast and effective the advantages of.
Brief description of the drawings
Fig. 1 is method schematic diagram of the current infrared thermography to tested measurement equipment examinations：
Fig. 2 is method schematic diagram of this forwarding method to tested measurement equipment examinations；
Fig. 3 is the structural representation of equipment used in this forwarding method.
Embodiment
Present example is further described below：It is emphasized that embodiment of the present invention is illustrative
, rather than it is limited, therefore the present invention is not limited to the embodiment described in embodiment, it is every by this area skill
The other embodiment that art personnel's technique according to the invention scheme is drawn, also belongs to the scope of protection of the invention.
A kind of method for lifting sulfur hexafluoride gas infrared detection sensitivity, as shown in Fig. 2 this method is：
Increase emittance of the infrared band to indoor tested measurement equipment, increase the reflection of equipment with this, increase SF6 gases
The contrast formed to infrared band optical absorption, then detected by infrared thermoviewer.
Wherein, the infrared band light is specially infrared band light of the wavelength between 10.3um-10.7um.
A kind of equipment suitable for above-mentioned lifting sulfur hexafluoride gas infrared detection sensitivity method, as shown in figure 3, this sets
It is standby to include insulated handle 5, the mounting disc 4 made is integrated in insulated handle upper end, carborundum tube 2 is fixed with mounting disc,
The nichrome resistance wire 3 to extend along carborundum tube is installed in carborundum tube, one layer of painting is externally coated with carborundum tube
Layer 1, the mains lighting supply line 6 of connection nichrome resistance wire is coated with the bottom of insulated handle.
In the specific implementation of the present invention, to ensure the wavelength of infrared band light between 10.3um-10.7um, the painting
Layer mass percent constituent content be：Al2O3：28-35wt%；SiO2：30-40wt%；CaO：15-20wt% surpluses are
SiC, the coating deposit thickness are 100-300um.
In the specific implementation of the present invention, the coating of coating is using magnetron sputtering method, plasma spraying method, electron beam evaporation plating
One kind in method or plasma enhanced chemical vapor deposition method, first choice use plasma spraying.
In the specific implementation of the present invention, the nichrome resistance wire for power 500w, operating voltage 220v.
Claims (6)
- A kind of 1. method for lifting sulfur hexafluoride gas infrared detection sensitivity, it is characterised in that the content of this method includes：Increase Big infrared band light increases the reflection of equipment with this, increase SF6 gases are to infrared waves to the emittance of indoor tested measurement equipment The contrast that section optical absorption is formed, then detected by infrared thermoviewer.
- 2. the method for lifting sulfur hexafluoride gas infrared detection sensitivity according to claim 1, it is characterised in that described Infrared band light is specially infrared band light of the wavelength between 10.3um-10.7um.
- 3. a kind of equipment of lifting sulfur hexafluoride gas infrared detection sensitivity method suitable for described in claim 1, it is special Sign is that the equipment includes insulated handle, integrally makes mounting disc in insulated handle upper end, carborundum is fixed with mounting disc Pipe, the nichrome resistance wire to extend along carborundum tube is installed in carborundum tube, coating is externally coated with carborundum tube, The mains lighting supply line of connection nichrome resistance wire is coated with the bottom of insulated handle.
- 4. the equipment according to claim 3 for being applied to lifting sulfur hexafluoride gas infrared detection sensitivity method, it is special Sign is that the mass percent constituent content of the coating is：Al2O3：28-35wt%；SiO2：30-40wt%；CaO：15- 20wt% surpluses are SiC, and the coating deposit thickness is 100-300um.
- 5. the equipment according to claim 3 for being applied to lifting sulfur hexafluoride gas infrared detection sensitivity method, it is special Sign is that the coating of the coating uses magnetron sputtering method, plasma spraying method, e-beam evaporation or plasma enhancing Learn one kind in vapour deposition process.
- 6. the equipment according to claim 3 for being applied to lifting sulfur hexafluoride gas infrared detection sensitivity method, it is special Sign is that the power of the nichrome resistance wire is 500w, operating voltage 220v.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700634.1A CN107621342A (en) | 2017-08-16 | 2017-08-16 | A kind of method and device for lifting sulfur hexafluoride gas infrared detection sensitivity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700634.1A CN107621342A (en) | 2017-08-16 | 2017-08-16 | A kind of method and device for lifting sulfur hexafluoride gas infrared detection sensitivity |
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| CN107621342A true CN107621342A (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710700634.1A Pending CN107621342A (en) | 2017-08-16 | 2017-08-16 | A kind of method and device for lifting sulfur hexafluoride gas infrared detection sensitivity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849552A (en) * | 2019-12-23 | 2020-02-28 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Membrane electrode assembly air tightness detection method and air tightness detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0330277A (en) * | 1989-06-28 | 1991-02-08 | Matsushita Refrig Co Ltd | Far infrared ray radiating heater |
| CN1076432A (en) * | 1993-04-13 | 1993-09-22 | 天津市硅酸盐研究所 | The preparation of far-infrared ceramic material and goods thereof |
| JP2001291575A (en) * | 2000-04-06 | 2001-10-19 | Ushio Inc | Heater |
| CN1664563A (en) * | 2004-12-31 | 2005-09-07 | 合肥东能光电科技有限公司 | Process for detecting sulfur hexafluoride (SF6) gas |
| CN101451901A (en) * | 2008-11-13 | 2009-06-10 | 山东长运光电科技有限公司 | Infrared sulphur hexafluoride leak detection camera |
| CN102811515A (en) * | 2011-06-02 | 2012-12-05 | 张家港市佳龙真空浸漆设备制造厂 | Far-infrared radiant tube |
| CN205562124U (en) * | 2016-04-11 | 2016-09-07 | 国网天津市电力公司 | Change indoor GIS equipment gas leak detection system that detects background emission and rate |
-
2017
- 2017-08-16 CN CN201710700634.1A patent/CN107621342A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0330277A (en) * | 1989-06-28 | 1991-02-08 | Matsushita Refrig Co Ltd | Far infrared ray radiating heater |
| CN1076432A (en) * | 1993-04-13 | 1993-09-22 | 天津市硅酸盐研究所 | The preparation of far-infrared ceramic material and goods thereof |
| JP2001291575A (en) * | 2000-04-06 | 2001-10-19 | Ushio Inc | Heater |
| CN1664563A (en) * | 2004-12-31 | 2005-09-07 | 合肥东能光电科技有限公司 | Process for detecting sulfur hexafluoride (SF6) gas |
| CN101451901A (en) * | 2008-11-13 | 2009-06-10 | 山东长运光电科技有限公司 | Infrared sulphur hexafluoride leak detection camera |
| CN102811515A (en) * | 2011-06-02 | 2012-12-05 | 张家港市佳龙真空浸漆设备制造厂 | Far-infrared radiant tube |
| CN205562124U (en) * | 2016-04-11 | 2016-09-07 | 国网天津市电力公司 | Change indoor GIS equipment gas leak detection system that detects background emission and rate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849552A (en) * | 2019-12-23 | 2020-02-28 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Membrane electrode assembly air tightness detection method and air tightness detection device |
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Application publication date: 20180123 |