CN105738036A - Sulfur hexafluoride gas leakage detector - Google Patents
Sulfur hexafluoride gas leakage detector Download PDFInfo
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- CN105738036A CN105738036A CN201610069924.6A CN201610069924A CN105738036A CN 105738036 A CN105738036 A CN 105738036A CN 201610069924 A CN201610069924 A CN 201610069924A CN 105738036 A CN105738036 A CN 105738036A
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- electromagnetic valve
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- sulfur hexafluoride
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention discloses a sulfur hexafluoride gas leakage detector comprising a storage box, wherein a silencing cotton layer and a silencing plate are fixed on the internal wall of the storage box; a gas detection box which is fixed in the storage box; a gas pump which is arranged in the storage box and is communicated with atmosphere and the gas detection box; a detection device which comprises a halogen gas sensor, a single-chip microcomputer and an alerter. The alerter is fixed on the storage box. The halogen gas sensor and the single-chip microcomputer are arranged in the gas detection box, and the single-chip microcomputer is connected with the halogen gas sensor, the alerter, a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve. The single-chip microcomputer is provided with a sulfur hexafluoride gas detection concentration threshold and a detection period. High-precision detection can be realized and a timely alarm function can be realized by the sulfur hexafluoride gas leakage detector.
Description
Technical field
The present invention relates to a kind of sulfur hexafluoride gas leak detector.
Background technology
Along with expanding economy, particularly in recent years, the electric utility of China have also been obtained tremendous development.Sulfur hexafluoride gas is owing to having good insulating properties, anti-breakdown, the feature such as high temperature resistant, and on the electric insulation being widely used, but health is had certain injury by sulfur hexafluoride gas, once the healthy of workmen can be caused damage by leakage.Current equipment of stopping leakage in the roof is relatively simple, and noise is relatively big, does not have warning function simultaneously.
Summary of the invention
It is an object of the invention to solve at least the above, and the advantage that at least will be described later is provided.
It is a still further object of the present invention to provide a kind of sulfur hexafluoride gas leak detector, it not only achieves high-precision detection, and achieves and the function of alarm.
In order to realize these purposes according to the present invention and further advantage, it is provided that a kind of sulfur hexafluoride gas leak detector, including:
Holding box, it is cube rustless steel box body, and the inwall of described holding box is fixed with silencing cotton layer and acoustical panel successively；
Gas detecting case, it is fixed in described holding box, and described gas detecting case offers air inlet and gas outlet, and described air inlet is opened in the top of described gas detecting case, and described gas outlet is opened in the bottom of described gas detecting case；
One end of air inlet pipe connects with described air inlet, the other end of described air inlet pipe passes described holding box and connects with outside atmosphere, and the other end of described air inlet pipe is provided with the described air inlet pipe of control leads to the first electromagnetic valve closed, described air inlet pipe is from top to bottom disposed with filter screen, active carbon layer and high efficiency particle air filter, one end of escape pipe connects with described gas outlet, the other end of described escape pipe pass described in box of filling a bowl with rice connect with outside atmosphere, the other end of described escape pipe is provided with the second electromagnetic valve；
Air pump, it is arranged in described holding box, the bleeding point of described air pump connects with one end of exhaust tube, the other end of described exhaust tube inserts from described gas detecting lower box part and connects with the inside of described gas detecting case, being provided with the 3rd electromagnetic valve controlling described exhaust tube opening and closing on described exhaust tube, the air vent of described vacuum pump is connected with the outside atmosphere of described holding box by exhaustor；
Detecting device, it includes halogen gas sensor, single-chip microcomputer and alarm；
Described alarm is fixed on described holding box, and is positioned at the outside of described holding box；Described halogen gas sensor and described single-chip microcomputer are arranged in described gas detecting case, and described single-chip microcomputer is connected with described halogen gas sensor, described alarm, described first electromagnetic valve, described second electromagnetic valve and described 3rd electromagnetic valve；Described single-chip microcomputer is provided with sulfur hexafluoride gas inspection concentration threshold and detection cycle；
Described single-chip microcomputer opens the once described detection cycle every 5min；
nullEach detection cycle is that the first electromagnetic valve opened by described single-chip microcomputer、Described 3rd electromagnetic valve and described vacuum pump，After described vacuum pump 50s opened by described single-chip microcomputer，Described single-chip microcomputer cuts out described first electromagnetic valve、Described 3rd electromagnetic valve and described vacuum pump，Open described halogen gas sensor，Gas in described gas detecting case is detected and testing result is transferred to described single-chip microcomputer by described halogen gas sensor，The sulfur hexafluoride gas inspection concentration value detected when described halogen gas sensor examines concentration threshold more than or equal to described sulfur hexafluoride gas，Then described alarm equipment alarm opened by described single-chip microcomputer，Open described second electromagnetic valve simultaneously，Close described halogen gas sensor，And close described second electromagnetic valve after opening the second electromagnetic valve 20s，After 1min opened by alarm，Described single-chip microcomputer cuts out described alarm，Namely the one-time detection cycle is completed，The sulfur hexafluoride gas inspection concentration value detected when described halogen gas sensor examines concentration threshold less than described sulfur hexafluoride gas，Described second electromagnetic valve opened by described single-chip microcomputer，Close described halogen gas sensor，And close described second electromagnetic valve after opening the second electromagnetic valve 20s，Namely the one-time detection cycle is completed；
Wherein, described sulfur hexafluoride gas inspection concentration threshold is 5000mg/m3。
Preferably, in described sulfur hexafluoride gas leak detector, the thickness of described silencing cotton layer is 3.7cm.
Preferably, in described sulfur hexafluoride gas leak detector, the thickness of described acoustical panel is 4.1cm.
Preferably, in described sulfur hexafluoride gas leak detector, the aperture of described filter screen is 20 μm.
Preferably, in described sulfur hexafluoride gas leak detector, in described active carbon layer, the particle diameter of activated carbon granule is 5mm.
The present invention at least includes following beneficial effect: the first, silencing cotton and acoustical panel serve the effect eliminating following vacuum pump generation noise；The second, filter screen, active carbon layer and HPEA are set in air inlet pipe and can not only absorb SF in air6, and can effectively remove solid particle in the gas entered in gas detecting case, it is ensured that and the cleannes in gas detecting case, discharge the interference of detection, not only extend pressure transducer and the service life of halogen gas sensor, and improve the precision of detection；3rd, vacuum pump is adopted to be extracted into by extraneous gas in gas detecting case, it is ensured that the gas every time detected is the gas of current ambient condition, it is therefore prevented that only to local or the problem of duplicate detection, to substantially increase detection confidence；4th, single-chip microcomputer, halogen gas sensor, alarm and three electromagnetic valves are adopted to control detection process, not only realize automated intelligent to detect automatically, and make the detection environment that halogen gas sensor detects consistent, decrease interference, improve the precision of detection.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part is also by by being understood by those skilled in the art the research of the present invention and practice
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
Should be appreciated that used herein such as " have ", existence or the interpolation of other elements one or more or its combination do not allotted in " comprising " and " including " term.
As it is shown in figure 1, the present invention provides a kind of sulfur hexafluoride gas leak detector, including: holding box 1, gas detecting case 4, vacuum pump 9, detecting device
Holding box 1 is cube rustless steel box body, and the inwall of holding box 1 is fixed with silencing cotton layer 2 and acoustical panel 3 successively；Silencing cotton and acoustical panel serve the effect eliminating following vacuum pump generation noise.Gas detecting case 4 is fixed in holding box 1, and gas detecting case 4 offers air inlet and gas outlet, and air inlet is opened in the top of gas detecting case 4, and gas outlet is opened in the bottom of gas detecting case 4；One end of air inlet pipe 5 connects with air inlet, the other end of air inlet pipe 5 passes holding box 1 and connects with outside atmosphere, and the other end of air inlet pipe 5 is provided with logical the first electromagnetic valve 7 closed of control air inlet pipe 5, air inlet pipe 7 is from top to bottom disposed with filter screen, active carbon layer and high efficiency particle air filter (HEPA), one end of escape pipe 6 connects with gas outlet, the other end of escape pipe 6 passes box 1 of filling a bowl with rice and connects with outside atmosphere, the other end of escape pipe 6 is provided with the second electromagnetic valve 8, air inlet pipe arranges filter screen, active carbon layer and HPEA can not only absorb SF in air6, and can effectively remove solid particle in the gas entered in gas detecting case, it is ensured that and the cleannes in gas detecting case, discharge the interference of detection, not only extend pressure transducer and the service life of halogen gas sensor, and improve the precision of detection.
Vacuum pump 9 is arranged in holding box 1, the bleeding point of vacuum pump 9 connects with one end of exhaust tube 10, the other end of exhaust tube 10 inserts from gas detecting case 4 bottom and connects with the inside of gas detecting case 4, being provided with the 3rd electromagnetic valve 11 controlling exhaust tube 10 opening and closing on exhaust tube 10, the air vent of vacuum pump 9 is connected with the outside atmosphere of holding box 1 by exhaustor 12；Vacuum pump is adopted to be extracted in gas detecting case by extraneous gas, it is ensured that the gas every time detected is the gas of current ambient condition, it is therefore prevented that only to local or the problem of duplicate detection, to substantially increase detection confidence.
Detecting device includes halogen gas sensor 13, single-chip microcomputer 14 and alarm 15；Alarm 15 is fixed on holding box 1, and is positioned at the outside of holding box 1；Halogen gas sensor 13 and single-chip microcomputer 14 are arranged in gas detecting case 4, and single-chip microcomputer 14 is connected with halogen gas sensor 13, alarm the 14, first electromagnetic valve the 7, second electromagnetic valve 8 and the 3rd electromagnetic valve 11；Single-chip microcomputer 14 is provided with sulfur hexafluoride gas inspection concentration threshold and detection cycle；
Single-chip microcomputer opens the one-time detection cycle every 5min；
Each detection cycle is that single-chip microcomputer opens the first electromagnetic valve, the 3rd electromagnetic valve and vacuum pump, and now the second electromagnetic valve is closed,
nullAfter vacuum pump 50s opened by single-chip microcomputer，Single-chip microcomputer cuts out the first electromagnetic valve、3rd electromagnetic valve and vacuum pump，Open halogen gas sensor，Gas in gas detecting case is detected and testing result is transferred to single-chip microcomputer by halogen gas sensor，The sulfur hexafluoride gas inspection concentration value detected when halogen gas sensor examines concentration threshold more than or equal to sulfur hexafluoride gas，Then single-chip microcomputer alarm for opening is reported to the police，Open the second electromagnetic valve simultaneously，Close halogen gas sensor，And close the second electromagnetic valve after opening the second electromagnetic valve 20s，After 1min opened by alarm，Single-chip microcomputer cuts out alarm，Namely the one-time detection cycle is completed，The sulfur hexafluoride gas inspection concentration value detected when halogen gas sensor examines concentration threshold less than sulfur hexafluoride gas，The second electromagnetic valve opened by single-chip microcomputer，Close halogen gas sensor，And close the second electromagnetic valve after opening the second electromagnetic valve 20s，Namely the one-time detection cycle is completed，Wherein，Sulfur hexafluoride gas inspection concentration threshold is 5000mg/m3；
Adopt single-chip microcomputer, halogen gas sensor, alarm and three electromagnetic valves to control detection process, not only realize automated intelligent and detect automatically, and the detection environment of halogen gas sensor detection is consistent, decreases interference, improves the precision of detection.
In one embodiment, as it is shown in figure 1, the thickness of silencing cotton layer 2 is 3.7cm.
In one embodiment, as it is shown in figure 1, the thickness of acoustical panel 3 is 4.1cm.
In one embodiment, the aperture of filter screen is 20 μm.
In one embodiment, in active carbon layer, the particle diameter of activated carbon granule is 5mm.
Although embodiment of the present invention are disclosed as above, but listed utilization that it is not restricted in description and embodiment, it can be applied to various applicable the field of the invention completely, for those skilled in the art, it is easily achieved other amendment, therefore, under the general concept limited without departing substantially from claim and equivalency range, the present invention is not limited to specific details and shown here as the legend with description.
Claims (5)
1. a sulfur hexafluoride gas leak detector, it is characterised in that including:
Holding box, it is cube rustless steel box body, and the inwall of described holding box is fixed with silencing cotton layer and acoustical panel successively；
Gas detecting case, it is fixed in described holding box, and described gas detecting case offers air inlet and gas outlet, and described air inlet is opened in the top of described gas detecting case, and described gas outlet is opened in the bottom of described gas detecting case；
One end of air inlet pipe connects with described air inlet, the other end of described air inlet pipe passes described holding box and connects with outside atmosphere, and the other end of described air inlet pipe is provided with the described air inlet pipe of control leads to the first electromagnetic valve closed, described air inlet pipe is from top to bottom disposed with filter screen, active carbon layer and high efficiency particle air filter, one end of escape pipe connects with described gas outlet, the other end of described escape pipe pass described in box of filling a bowl with rice connect with outside atmosphere, the other end of described escape pipe is provided with the second electromagnetic valve；
Air pump, it is arranged in described holding box, the bleeding point of described air pump connects with one end of exhaust tube, the other end of described exhaust tube inserts from described gas detecting lower box part and connects with the inside of described gas detecting case, being provided with the 3rd electromagnetic valve controlling described exhaust tube opening and closing on described exhaust tube, the air vent of described vacuum pump is connected with the outside atmosphere of described holding box by exhaustor；
Detecting device, it includes halogen gas sensor, single-chip microcomputer and alarm；
Described alarm is fixed on described holding box, and is positioned at the outside of described holding box；Described halogen gas sensor and described single-chip microcomputer are arranged in described gas detecting case, and described single-chip microcomputer is connected with described halogen gas sensor, described alarm, described first electromagnetic valve, described second electromagnetic valve and described 3rd electromagnetic valve；Described single-chip microcomputer is provided with sulfur hexafluoride gas inspection concentration threshold and detection cycle；
Described single-chip microcomputer opens the once described detection cycle every 5min；
nullEach detection cycle is that the first electromagnetic valve opened by described single-chip microcomputer、Described 3rd electromagnetic valve and described vacuum pump，After described vacuum pump 50s opened by described single-chip microcomputer，Described single-chip microcomputer cuts out described first electromagnetic valve、Described 3rd electromagnetic valve and described vacuum pump，Open described halogen gas sensor，Gas in described gas detecting case is detected and testing result is transferred to described single-chip microcomputer by described halogen gas sensor，The sulfur hexafluoride gas inspection concentration value detected when described halogen gas sensor examines concentration threshold more than or equal to described sulfur hexafluoride gas，Then described alarm equipment alarm opened by described single-chip microcomputer，Open described second electromagnetic valve simultaneously，Close described halogen gas sensor，And close described second electromagnetic valve after opening the second electromagnetic valve 20s，After 1min opened by alarm，Described single-chip microcomputer cuts out described alarm，Namely the one-time detection cycle is completed，The sulfur hexafluoride gas inspection concentration value detected when described halogen gas sensor examines concentration threshold less than described sulfur hexafluoride gas，Described second electromagnetic valve opened by described single-chip microcomputer，Close described halogen gas sensor，And close described second electromagnetic valve after opening the second electromagnetic valve 20s，Namely the one-time detection cycle is completed；
Wherein, described sulfur hexafluoride gas inspection concentration threshold is 5000mg/m3。
2. sulfur hexafluoride gas leak detector as claimed in claim 1, it is characterised in that the thickness of described silencing cotton layer is 3.7cm.
3. sulfur hexafluoride gas leak detector as claimed in claim 1, it is characterised in that the thickness of described acoustical panel is 4.1cm.
4. sulfur hexafluoride gas leak detector as claimed in claim 1, it is characterised in that the aperture of described filter screen is 20 μm.
5. sulfur hexafluoride gas leak detector as claimed in claim 1, it is characterised in that in described active carbon layer, the particle diameter of activated carbon granule is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610069924.6A CN105738036A (en) | 2016-02-01 | 2016-02-01 | Sulfur hexafluoride gas leakage detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610069924.6A CN105738036A (en) | 2016-02-01 | 2016-02-01 | Sulfur hexafluoride gas leakage detector |
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| CN105738036A true CN105738036A (en) | 2016-07-06 |
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| CN201610069924.6A Pending CN105738036A (en) | 2016-02-01 | 2016-02-01 | Sulfur hexafluoride gas leakage detector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679889A (en) * | 2017-01-16 | 2017-05-17 | 江苏骏龙光电科技股份有限公司 | Gas leakage detection apparatus and detection method of the same |
| CN106932320A (en) * | 2016-10-28 | 2017-07-07 | 杭州克霾环保科技有限公司 | Particulate matter detector |
| CN112345703A (en) * | 2020-11-06 | 2021-02-09 | 卢永保 | Ventilation equipment convenient to greenhouse gas discharges |
| CN113193505A (en) * | 2021-04-27 | 2021-07-30 | 国网新疆电力有限公司昌吉供电公司 | Power distribution website trouble early warning device |
| CN117347775A (en) * | 2023-08-25 | 2024-01-05 | 国网安徽省电力有限公司涡阳县供电公司 | Power distribution network fault early warning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106932320A (en) * | 2016-10-28 | 2017-07-07 | 杭州克霾环保科技有限公司 | Particulate matter detector |
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| CN113193505A (en) * | 2021-04-27 | 2021-07-30 | 国网新疆电力有限公司昌吉供电公司 | Power distribution website trouble early warning device |
| CN113193505B (en) * | 2021-04-27 | 2022-07-15 | 国网新疆电力有限公司昌吉供电公司 | Power distribution website trouble early warning device |
| CN117347775A (en) * | 2023-08-25 | 2024-01-05 | 国网安徽省电力有限公司涡阳县供电公司 | Power distribution network fault early warning device |
| CN117347775B (en) * | 2023-08-25 | 2024-04-30 | 国网安徽省电力有限公司涡阳县供电公司 | Power distribution network fault early warning device |
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