CN203811332U - Shield positioning cover special for SF6 qualitative leak detector - Google Patents
Shield positioning cover special for SF6 qualitative leak detector Download PDFInfo
- Publication number
- CN203811332U CN203811332U CN201420055220.XU CN201420055220U CN203811332U CN 203811332 U CN203811332 U CN 203811332U CN 201420055220 U CN201420055220 U CN 201420055220U CN 203811332 U CN203811332 U CN 203811332U
- Authority
- CN
- China
- Prior art keywords
- cover body
- cover
- probe
- qualitative
- leak locator
- 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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- 239000000523 sample Substances 0.000 claims abstract description 46
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 238000012360 testing method Methods 0.000 claims description 12
- 238000009825 accumulation Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 4
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 30
- 210000005239 tubule Anatomy 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Abstract
The utility model provides a shield positioning cover special for an SF6 qualitative leak detector. The cover comprises an arc-shaped cover body, in which a detector probe is fixed. The detector probe is connected to the detector by a probe connecting pipe passing through the cover body. The cover is simple in structure and utilizes the semi-enclosed cover body to solve the problem that SF6 electrical appliances in the prior art are heavy in work load and are liable to interference of external factors such as wind, dust and moisture in the field and thus false alarms are generated quite often. With the cover body used, a leak point can be quickly located without repetitive detections, so that the detection efficiency in the field is largely improved, and the cover is very suitable for leak detection of various types of SF6 electrical appliances in the field.
Description
Technical field
The utility model relates to a kind of private mask locating cover, is particularly a kind ofly applicable to all SF
6the private mask locating cover that the on-the-spot leak detection of qualitative leak locator is used.
Background technology
?in recent years, along with the application of new equipment, new material, SF
6advantages such as electrical equipment is safe and reliable with it, insulating property are high, maintenance workload is little, long service life and obtained extensive application in electric system.But with SF
6equipment is increasing corresponding, due to the reasons such as on-the-spot installation procedure is lack of standardization, seal is aging, production technology is not tight to check on, SF
6electrical equipment is in operation SF occurs
6leakage Gas event is also being on the increase.For preventing SF
6leakage Gas too much causes major insulation to reduce, and causes electrical equipment accident.In routine duties, as long as a discovery SF
6there is SF in electrical equipment
6leakage Gas sign (gaseous tension reduces extremely), just must be immediately to SF
6gas leakage point is comprehensively hunted leak, found out as early as possible to electrical equipment, to principal fault is processed in time.
SF
6qualitative leak locator is at present in electric system, to adopt the widest leakage detecting instrument, and its low price, detection sensitivity are high, but poor anti jamming capability, serviceability is very unstable.Carry out SF
6during the on-the-spot leak detection of electrical equipment, testing staff uses SF conventionally
6qualitative leak locator is at distance about 10mm place, tested position, and at the uniform velocity mobile gas leakage a little searched.Due to most SF
6electrical equipment is mounted in open air, uses SF
6when qualitative leak locator is hunted leak, be subject to the interference of the extraneous factors such as on-the-spot wind-force, dust, moisture, often report by mistake.A SF
6electrical equipment often will detect ten multipass repeatedly just can find gas leakage point, and detection efficiency is very low.The interference of extraneous factor while hunting leak for getting rid of, testing staff has adopted plastic sheeting to carry out part wrapping to each joint face of tested equipment, then uses SF
6qualitative leak locator inserts the method that wrapping point detects, some Search and Orientation of leaking gas one by one.This method location is comparatively accurate, but because searches and all need whole SF at every turn
6the all joint faces of electrical equipment are wrapped up, and workload is very big, are only applicable to small volume, the less SF of joint face
6isolating switch, for the SF bulky, joint face is numerous
6combination of gases electrical equipment (GIS) is very inapplicable.
Therefore, develop and a kind ofly without wrapping up, just can effectively avoid extraneous factor to disturb, improve SF
6qualitative leak locator detects stability, and to various SF
6the private mask locating cover that equipment can be located gas leakage point is fast very necessary.
Summary of the invention
The utility model improves the problems referred to above, and the technical problems to be solved in the utility model is existing SF
6electrical equipment leak detection workload is large, and is vulnerable to the interference of the extraneous factors such as on-the-spot wind-force, dust, moisture, often reports by mistake.
Specific embodiments of the present utility model is: a kind of SF
6qualitative leak locator private mask locating cover, comprises an arch cover body, fixes a detection probe in described cover body, and described detection probe is through probe connecting pipe and a SF through arch cover body
6qualitative leak locator is connected.
Further, described arch cover body bottom is provided with gas collection brush.
Further, be provided with a probe location fastener for fixed test probe in described cover body, described probe location fastener comprises two relative semicircle elastic steel sheets, and described elastic steel sheet is fixed in air accumulation chamber interior walls.
Further, described arch cover body is provided with a probe connecting pipe fixed cover at the top of Semicircular arched, and described probe connecting pipe fixed cover is provided with locking pipe collar.
Further, described gas collection brush adopts plastics bristle to make.
Further, described probe connecting pipe and detection probe are formed in one.
Compared with prior art, the utlity model has following beneficial effect: SF
6qualitative leak locator private mask locating cover adopts external attached type to install, simple in structure light and handy, uses very convenient.It is guaranteeing SF
6in the time of qualitative leak locator sensitivity, can avoid detection probe contaminated, effectively improve SF
6qualitative leak locator antijamming capability and detection stability.And can adapt to various equipment under test profiles, without equipment under test being carried out to part wrapping, just can assemble fast the SF of equipment under test surface leakage deposition
6gas, effectively shields extraneous factor and disturbs.Use after this arch cover body without carrying out repeated multiple times detection, can locate fast gas leakage point, greatly improve Site Detection efficiency, be extremely suitable for all kinds SF
6the scene leak detection of electrical equipment is used.
Accompanying drawing explanation
Fig. 1 is that the utility model is used status architecture schematic diagram.
Fig. 2 is the utility model cover body structural representation.
Fig. 3 is Fig. 2 cover body vertical view.
In figure: 10-cover body, 20-detection probe, 30-gas collection brush, 40-probe location fastener, 50-SF
6qualitative leak locator, 110-probe connecting leg fixed cover, 111-pipe collar.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Fig. 1～2, this locating cover makes full use of SF
6gaseous mass is 5 times of air, and near the feature easily depositing gas leakage point, adopts SF
6the gas principle that gas concentration changes after little space clustering, by changing SF
6the testing environment of qualitative leak locator detection probe, improves its detection stability and realizes the quick location to gas leakage point.
A kind of SF
6qualitative leak locator private mask locating cover, its structural feature is: comprise an arch cover body 10, fix a detection probe 20 in described cover body, described detection probe 20 is through probe connecting pipe 210 and a SF through arch cover body
6qualitative leak locator 50 is connected.
Described cover body 10 is the front wide and rear narrow Semicircular arched hollow-core construction of a rubber long 50mm, the widest part 60mm that make, for assembling the SF6 gas that equipment under test surface leakage goes out, the sealing detection space that can prevent that extraneous factor from disturbing is provided to detection probe 20 simultaneously.In the middle part of Semicircular arched, have a probe location fastener 40, at the front end of Semicircular arched, have a tested gas access of circular arc, have a detection probe connecting leg fixed cover 110 at the top of Semicircular arched, the bottom surrounding of Semicircular arched cover body is gas collection brush 30.
Described probe location fastener 40 is for being about two relative semicircle elastic steel sheets of 15mm, be fixed in air accumulation chamber interior walls, for fixed test 20 insertion positions of popping one's head in, all the time the centre position in air accumulation chamber after detection probe 20 is inserted, and keep the distance of 10-15mm with bottom surface, to prevent that detection probe 20 is because directly contacting by dust, moisture contamination with tested position is surperficial.
Described probe connecting leg fixed cover 110 is integral type connectivity structure with arch cover body 10, and connecting leg fixed cover 110 is one to be about the rubber cylinder of 20mm, is 45 ° of angles with arch cover body 10 base plane, and barrel bore is pressed SF
6qualitative leak locator probe connecting leg external diameter is definite, and its outside has a tubule hoop 111 to be used for probe connecting leg to carry out fastening.Described tubule hoop 111 is stainless steel pipe collar, fastening applicable to φ 10-20mm pipe.
Described gas collection brush 30 employings are about 30mm nonrigid plastic bristle and make, intensive bottom surface, the air accumulation chamber surrounding that is adhesively fixed on.Gas collection brush 30 can increase the coverage rate of cover body, makes cover body can adapt to the profile of different equipment under tests, and by the SF of equipment under test surface deposition
6it is indoor that gas gathers the air accumulation that cover body cavity forms fast, is convenient to SF
6qualitative leak locator is measured.
During use, by SF
6qualitative leak locator detection probe is inserted in cover body 10 from probe connecting leg fixed cover, snaps in the fastener 40 of probe location, then the probe connecting leg 110 use tubule hoops 111 at probe connecting leg fixed cover place are screwed, and completes the installation of private mask locating cover.
After installing, hand-held SF
6qualitative leak locator is gently pressed in SF by special-purpose cover body
6on the tested position of equipment surface., by the translational speed of 30mm/ second, counterclockwise drag locating cover by locating cover arch cover body gas access forward, the spot check that can leak gas is checked and examined and is looked for.When the qualitative leak locator of SF6 sends alerting signal in moving process, stop immediately moving, cover body is pressed down, by the circular arc gas access temporary enclosed of front end, simultaneously by the involution of leak locator alerting signal.As after involution repeatedly, alerting signal still continues to occur, can determine that this place is for the region that leaks gas.As locating cover integral body presses down after also involution, alerting signal disappears and also no longer occurs can regarding as normally, lifts the mobile detection of locating cover continuation.So only need through one to twice move, detect each joint face, can determine fast that gas leakage point is found in the region at gas leakage point place.
Finish using, only need unclamp tubule hoop by SF
6qualitative leak locator detection probe is extracted out from locating cover.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. a SF
6qualitative leak locator private mask locating cover, comprises an arch cover body, fixes a detection probe in described cover body, and described detection probe is through probe connecting pipe and a SF through arch cover body
6qualitative leak locator is connected, and is provided with a probe location fastener for fixed test probe in described cover body, and described probe location fastener comprises two relative semicircle elastic steel sheets, and described elastic steel sheet is fixed in air accumulation chamber interior walls.
2. a kind of SF according to claim 1
6qualitative leak locator private mask locating cover, described arch cover body bottom is provided with gas collection brush.
3. a kind of SF according to claim 1
6qualitative leak locator private mask locating cover, described arch cover body is provided with a probe connecting pipe fixed cover at the top of Semicircular arched, and described probe connecting pipe fixed cover is provided with locking pipe collar.
4. a kind of SF according to claim 2
6qualitative leak locator private mask locating cover, described gas collection brush adopts plastics bristle to make.
5. a kind of SF according to claim 1
6qualitative leak locator private mask locating cover, described probe connecting pipe and detection probe are formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055220.XU CN203811332U (en) | 2014-01-28 | 2014-01-28 | Shield positioning cover special for SF6 qualitative leak detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055220.XU CN203811332U (en) | 2014-01-28 | 2014-01-28 | Shield positioning cover special for SF6 qualitative leak detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203811332U true CN203811332U (en) | 2014-09-03 |
Family
ID=51450069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420055220.XU Expired - Fee Related CN203811332U (en) | 2014-01-28 | 2014-01-28 | Shield positioning cover special for SF6 qualitative leak detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203811332U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759898A (en) * | 2014-01-28 | 2014-04-30 | 国家电网公司 | Shielding locating hood special for SF6 qualitative leak detector and detection method thereof |
| CN108002271A (en) * | 2017-11-20 | 2018-05-08 | 山东泰开高压开关有限公司 | A kind of SF6 electrical equipments button cover car and buckle cover method |
| CN109791087A (en) * | 2016-09-19 | 2019-05-21 | 英福康有限责任公司 | Probe attachment is filled with elongated gas induction element |
| WO2021156021A1 (en) * | 2020-02-03 | 2021-08-12 | Inficon Gmbh | Sniffer probe with shielding |
-
2014
- 2014-01-28 CN CN201420055220.XU patent/CN203811332U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759898A (en) * | 2014-01-28 | 2014-04-30 | 国家电网公司 | Shielding locating hood special for SF6 qualitative leak detector and detection method thereof |
| CN109791087A (en) * | 2016-09-19 | 2019-05-21 | 英福康有限责任公司 | Probe attachment is filled with elongated gas induction element |
| CN108002271A (en) * | 2017-11-20 | 2018-05-08 | 山东泰开高压开关有限公司 | A kind of SF6 electrical equipments button cover car and buckle cover method |
| CN108002271B (en) * | 2017-11-20 | 2023-11-10 | 山东泰开高压开关有限公司 | SF6 electrical equipment cover buckling vehicle and cover buckling method |
| WO2021156021A1 (en) * | 2020-02-03 | 2021-08-12 | Inficon Gmbh | Sniffer probe with shielding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20220128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |