CN204204161U - A kind of leakage gas-detecting device - Google Patents
A kind of leakage gas-detecting device Download PDFInfo
- Publication number
- CN204204161U CN204204161U CN201420522273.8U CN201420522273U CN204204161U CN 204204161 U CN204204161 U CN 204204161U CN 201420522273 U CN201420522273 U CN 201420522273U CN 204204161 U CN204204161 U CN 204204161U
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- Prior art keywords
- gas
- cover
- electrically
- controlled valve
- leakage
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Links
- 239000007789 gas Substances 0.000 claims description 96
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 238000006722 reduction reaction Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
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- Emergency Alarm Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model provides a kind of and reveals gas-detecting device, comprising: gather cover, for gathering leakage gas, and the proportion lta of wherein said leakage gas; Gas outlet, is connected with the described one end of covering that gathers; Electrically-controlled valve, is arranged on described gas outlet, when described electrically-controlled valve is closed described gas outlet with described gather to cover disconnect, when described electrically-controlled valve unlatching described gas outlet with described gather to cover be connected; Gas sensor, is arranged on the described inwall gathering cover, and when the described leakage gas concentration in described collection cover is higher than predetermined threshold value, described gas sensor opens described electrically-controlled valve.
Description
Technical field
The utility model relates to electrical equipment control field.Relate in particular to a kind of leakage gas-detecting device.
Background technology
Inflammable gas in oiling test room generally adopts pressure gas cylinder to store, and it has the reliable advantage of air feed, but in use, there is potential safety hazard as high pressure vessel.The use of gas cylinder, is needed by reduction valve (rain glass) decompression, and is connected with chromatograph by the connection air-channel system of chromatogram.When using the gas in steel cylinder, slowly gas cylinder valve opened by turn reduction valve counterclockwise, and use terminates first unwrapping wire clockwise and slowly closes gas cylinder valve, until high pressure gauge reading is 0, then counter-clockwise direction slowly unscrews and reduces pressure valve adjusting knob, confirms that reduction valve is in releasing orientation.In real work, reduction valve improper use, the long-term pressurized of spring will be tired malfunctioning, when gauge hand returns less than zero-bit, will produce decompressor gas leak phenomenon.In addition reduction valve adjusting knob is malfunctioning can cause hydrogen gas leakage, accident of likely blasting equally.Therefore, the impermeability leak detection of gas cylinder is significant to laboratory safety, existing pick-up unit normally environmentally in gas concentration send actuation of an alarm, but when it detects that combustable gas concentration reaches dangerous values, its place environment belongs to danger zone, and this device cannot process effectively.
Utility model content
For this reason, technical problem to be solved in the utility model is effectively to detect for gas leakage place, and makes effectively process when danger being detected and clear.
The utility model provides a kind of and reveals gas-detecting device, comprising:
Gather cover, for gathering leakage gas, the proportion lta of wherein said leakage gas;
Gas outlet, is connected with the described one end of covering that gathers;
Electrically-controlled valve, is arranged on described gas outlet, when described electrically-controlled valve is closed by described gas outlet with described gather to cover disconnect, when described electrically-controlled valve unlatching by described gas outlet with described gather to cover be communicated with;
Gas sensor, is arranged on the described inwall gathering cover, and when the described leakage gas concentration in described collection cover being detected higher than predetermined threshold value, described gas sensor opens described electrically-controlled valve.
Further, described leakage gas is inflammable gas.
Further, described inflammable gas is hydrogen.
Further, described gas sensor is arranged near described electrically-controlled valve.
Further, described collection cover is funnel type or back taper.
Further, the diameter of described gas outlet is diameter 3-5cm.
Further, described predetermined threshold value is 1%-4%.
Preferably, described device also comprises:
Displaying Meter, for showing the described described leakage gas concentration gathered in cover that described gas sensor detects.
Preferably, described device also comprises:
Alarm, when described gas sensor detect described gather cover in described leakage gas concentration higher than predetermined threshold value time, open described alarm.
Preferably, described alarm comprises: audible-visual annunciator and/or long-distance alarm apparatus.
The device that the utility model provides utilizes to gather to cover and gathers detected equipment, when detected equipment occurs to reveal, reveal gas to assemble in collection cover inside top, until gas sensor collects reveal the concentration of gas when being greater than predetermined threshold value, control electrically-controlled valve is opened, discharged the gas gathered in cover by gas outlet, thus avoid causing danger in gas leakage to environment.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the structural representation of the leakage gas-detecting device that embodiment one provides;
Fig. 2 is the use scenes schematic diagram of the leakage gas-detecting device that embodiment one provides;
Fig. 3 is the structural representation of the leakage gas-detecting device that embodiment two provides.
Embodiment
Embodiment one
As shown in Figure 1, the present embodiment provides a kind of and reveals gas-detecting device, comprising: gather cover 11, gas outlet 12, electrically-controlled valve 13 and gas sensor 14.
Wherein, gather cover 11 for gathering leakage gas, the proportion lta of the leakage gas of collection can be such as the inflammable gass such as hydrogen.When lighter-than-air other of proportion are leaked in environment from certain device or equipment, this gas can float, so application the utility model provide device time, should will gather cover be arranged on detected equipment or position top and close to easy leakage place so that utilize gas to float principle collection leakage gas.The shape gathering cover 11 is preferably funnel type or back taper, and the diameter namely receiving gas leakage side is greater than the diameter of the other end, and this shape can expand collection area, and gas is assembled in less side.
Gas outlet 12 is connected with the one end gathering cover 11, and the upper opening of the collection cover 11 in the present embodiment is connected with gas outlet 12, and the other end of gas outlet 12 can be connected with the air hole of outside, scavenger fan etc.The diameter of gas outlet 12 is that diameter is preferably 3-5cm, and gas can be discharged quickly.
Electrically-controlled valve 13 is arranged on the junction with collection cover 11 on gas outlet 12, gas outlet 12 and collection cover 11 is disconnected when electrically-controlled valve 13 is closed, and is communicated with by gas outlet 12 when electrically-controlled valve is opened with collection cover 11.Electrically-controlled valve 13 can be solenoid valve or electrically operated valve.
Gas sensor 14 is arranged on the inwall of collection cover 11, and when gathering the described leakage gas concentration in cover 11 higher than predetermined threshold value, described gas sensor opens described electrically-controlled valve.Gas sensor 14 is a kind of equipment sending electric signal when detecting specific gas, it can be such as hydrogen gas sensor, hydrogen gas sensor comprises two electrodes, they are by one deck electrolyte thin UF membrane and had body seal, shell only leaves an aperture and allows gas to enter induction electrode, electrode in sensor is connected by with the resistance circuit of outside by pin, is just can measure electric potential difference like this when there being electric current to pass through.There is oxidation or reduction reaction on induction electrode surface in the gas diffusing into sensor, at another electrode, reversed reaction on the other side occurs, external circuit forms electric current.The speed entering sensor due to gas is controlled by gate hole, thus the electric current and the sensor that produce gas concentration is proportional outward.Such as, gas sensor 14 can make electrically-controlled valve 13 be energized or power-off by gauge tap device, when not occurring to reveal, electrically-controlled valve 13 is in closed condition, when the electric signal that gas sensor 14 exports is greater than predetermined threshold value, switching device is connected, thus electrically-controlled valve 13 energising is opened.The predetermined threshold value of gas concentration is preferably 1%-4%.
Preferably, gas sensor 14 is arranged near electrically-controlled valve 13, and namely gas sensor 14 is arranged on the top gathered in cover 11, makes its position close to electrically-controlled valve 13.After revealing, gas can rise to rapidly and gathers cover inside top and constantly accumulate at this place, so the gas concentration at this place is more stable, even if only there is a small amount of leakage in detected equipment, this place also has gas build, sensor 14 is arranged on this place and the concentration revealing gas can be detected more exactly.
Fig. 2 shows the application scenarios of this device, and equipment detected in this scene is the pressure gas cylinder of a storage of hydrogen, and bottleneck is provided with the parts such as operation valve, reduction valve, and this place belongs to the position easily occurring to reveal.Collection cover 11 in the device that the present embodiment provides is fixed on above this place, when steel bottle mouth place occurs to reveal, hydrogen can be assembled in collection cover 11 inside top, until when the concentration that gas sensor 14 collects hydrogen is greater than 4%, control electrically-controlled valve 13 to open, discharged the hydrogen gathered in cover 11 by gas outlet 12, thus avoid hydrogen leak to cause danger.
Embodiment two
The present embodiment provides a kind of and reveals gas-detecting device, and as shown in Figure 2, on the basis of above-described embodiment, the device that the present embodiment provides also comprises:
Displaying Meter 21, for showing the described leakage gas concentration in described collection cover 11 that described gas sensor 14 detects, staff can check that the reading in instrument determines concrete gas concentration, and Displaying Meter can be arranged on other Control Rooms.
Preferably, the device that the present embodiment provides also comprises:
Alarm 22, when described gas sensor 14 detects that described leakage gas concentration in described collection cover 11 is higher than predetermined threshold value, opens described alarm.
Preferably, described alarm 22 comprises: audible-visual annunciator 221 and/or long-distance alarm apparatus 222.Long-distance alarm apparatus 23 can be communicator, and the mode of warning can be send warning message to mobile phone.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (10)
1. reveal a gas-detecting device, it is characterized in that, comprising:
Gather cover, for gathering leakage gas, the proportion lta of wherein said leakage gas;
Gas outlet, is connected with the described one end of covering that gathers;
Electrically-controlled valve, is arranged on described gas outlet, when described electrically-controlled valve is closed by described gas outlet with described gather to cover disconnect, when described electrically-controlled valve unlatching by described gas outlet with described gather to cover be communicated with;
Gas sensor, is arranged on the described inwall gathering cover, and when the described leakage gas concentration in described collection cover being detected higher than predetermined threshold value, described gas sensor opens described electrically-controlled valve.
2. device according to claim 1, is characterized in that, described leakage gas is inflammable gas.
3. device according to claim 2, is characterized in that, described inflammable gas is hydrogen.
4. device according to claim 1, is characterized in that, described gas sensor is arranged near described electrically-controlled valve.
5. device according to claim 1, is characterized in that, described collection cover is funnel type or back taper.
6. device according to claim 1, is characterized in that, the diameter of described gas outlet is 3-5cm.
7. device according to claim 1, is characterized in that, described predetermined threshold value is 1%-4%.
8. the device according to any one of claim 1-7, is characterized in that, described device also comprises:
Displaying Meter, for showing the described described leakage gas concentration gathered in cover that described gas sensor detects.
9. the device according to any one of claim 1-7, is characterized in that, described device also comprises:
Alarm, when described gas sensor detect described gather cover in described leakage gas concentration higher than predetermined threshold value time, open described alarm.
10. device according to claim 9, is characterized in that, described alarm comprises: audible-visual annunciator and/or long-distance alarm apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420522273.8U CN204204161U (en) | 2014-09-11 | 2014-09-11 | A kind of leakage gas-detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420522273.8U CN204204161U (en) | 2014-09-11 | 2014-09-11 | A kind of leakage gas-detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204204161U true CN204204161U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420522273.8U Expired - Fee Related CN204204161U (en) | 2014-09-11 | 2014-09-11 | A kind of leakage gas-detecting device |
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| CN (1) | CN204204161U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781647A (en) * | 2017-09-25 | 2018-03-09 | 武汉工程大学 | A kind of long-tube trailer reveals real-time monitoring and alarming device equipment |
| CN108758355A (en) * | 2018-05-18 | 2018-11-06 | 云南电网有限责任公司电力科学研究院 | A kind of hydrogen power generation device hydrogen gas leakage monitoring protection device and method |
| CN111929406A (en) * | 2020-06-19 | 2020-11-13 | 国网浙江省电力有限公司湖州供电公司 | Intelligent integrated monitoring system and method for electrified livestock farm |
| CN111982186A (en) * | 2020-06-19 | 2020-11-24 | 国网浙江省电力有限公司湖州供电公司 | Intelligent monitoring system and method for harmful gas in livestock farm |
| WO2022029021A1 (en) * | 2020-08-07 | 2022-02-10 | Cellcentric Gmbh & Co. Kg | Hydrogen leakage detection system and method |
| CN115823502A (en) * | 2022-11-28 | 2023-03-21 | 深圳市智芯微纳科技有限公司 | Hydrogen leakage alarm device |
-
2014
- 2014-09-11 CN CN201420522273.8U patent/CN204204161U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781647A (en) * | 2017-09-25 | 2018-03-09 | 武汉工程大学 | A kind of long-tube trailer reveals real-time monitoring and alarming device equipment |
| CN107781647B (en) * | 2017-09-25 | 2024-02-02 | 武汉工程大学 | Long-tube trailer leakage real-time monitoring alarm equipment |
| CN108758355A (en) * | 2018-05-18 | 2018-11-06 | 云南电网有限责任公司电力科学研究院 | A kind of hydrogen power generation device hydrogen gas leakage monitoring protection device and method |
| CN111929406A (en) * | 2020-06-19 | 2020-11-13 | 国网浙江省电力有限公司湖州供电公司 | Intelligent integrated monitoring system and method for electrified livestock farm |
| CN111982186A (en) * | 2020-06-19 | 2020-11-24 | 国网浙江省电力有限公司湖州供电公司 | Intelligent monitoring system and method for harmful gas in livestock farm |
| WO2022029021A1 (en) * | 2020-08-07 | 2022-02-10 | Cellcentric Gmbh & Co. Kg | Hydrogen leakage detection system and method |
| CN115823502A (en) * | 2022-11-28 | 2023-03-21 | 深圳市智芯微纳科技有限公司 | Hydrogen leakage alarm device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20180911 |