CN204717358U - Pipeline gas leak detecting device - Google Patents
Pipeline gas leak detecting device Download PDFInfo
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- CN204717358U CN204717358U CN201520409711.4U CN201520409711U CN204717358U CN 204717358 U CN204717358 U CN 204717358U CN 201520409711 U CN201520409711 U CN 201520409711U CN 204717358 U CN204717358 U CN 204717358U
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- gas
- leakage
- gathering
- pipeline
- gas leakage
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Abstract
The utility model provides a kind of pipeline gas leak detecting device, it comprises gas leakage gathering-device and is arranged on the sensor module of described gas leakage gathering-device inside, the air outlet that described gas leakage gathering-device is provided with suction port and is opened and closed by electromagnetic valve, described sensor module comprises gas pressure sensor, signal pickup assembly and signal output apparatus, the suction port of described gas leakage gathering-device is communicated with the leakage point of gas pipeline, described signal pickup assembly connects described gas pressure sensor to gather the variable quantity of described gas leakage gathering-device internal leakage gas pressure, described signal output apparatus connects described signal pickup assembly to judge whether the size of Leakage Gas and leakage rate according to the variable quantity of described gas leakage pressure.
Description
Technical field
The utility model relates to a kind of gas leak detection apparatus, specifically, relate to a kind of pipeline gas leak detecting device that can detect the Leakage Gas of gas pipeline jointing.
Background technique
At petroleum refining enterprise, have that a large amount of conveyings is inflammable and explosive, the pipeline of toxic and harmful, due to duct length and caliber different, needing the pipeline section place of frequent dismounting and pipeline and the joining place of equipment, mostly adopt flange connect.Flange seal effect mainly makes flange gasket have enough sealing pressings by clamping bolt thus stops Leakage Gas, realizes sealing.
In gas transport process, the sealing of flange can be subject to various impacts, and these impacts mainly comprise: the bolt pretightening of flange connections is not enough or uneven; Pipeline pressure fluctuation or pipeline commissioning move and make the stressed change of connecting bolt; Pipe vibration makes connecting bolt loosen; The voltage withstand class of sealing material does not reach code requirement; The aging spring-back force of pad that causes of sealing material declines; The structure model selection of sealing gasket is improper.After these factors exist direct or indirect impact, particularly pipeline air-inlet to piping flange sealability, due to the impact of the factor such as pipeline commissioning, movement, flange connections is bolt strained to change unavoidably.If can not flange leakage problems be detected in time and take countermeasure, under the washing away of medium, meeting makes seepage expand rapidly, causes various loss.If poisonous and harmful, inflammable and explosive Leakage Gas, also likely cause the serious accidents such as personnel are poisoning, fire, blast.
For above-mentioned situation, due to existing pipeline gas Leak testtion employing is that pipeline is patrolled and examined, easily undetected to minute leakage point, therefore, needs to take more effective detecting method and device.
Model utility content
The purpose of this utility model is for the deficiencies in the prior art, thus provides a kind of practical, Perfect in shape and function, structure is simple, safety coefficient is high pipeline gas leak detecting device.
To achieve these goals, the technological scheme that the utility model adopts is: a kind of pipeline gas leak detecting device, it comprises gas leakage gathering-device and is arranged on the sensor module of described gas leakage gathering-device inside, the air outlet that described gas leakage gathering-device is provided with suction port and is opened and closed by electromagnetic valve, described sensor module comprises gas pressure sensor, signal pickup assembly and signal output apparatus, the suction port of described gas leakage gathering-device is communicated with the leakage point of gas pipeline, described signal pickup assembly connects described gas pressure sensor to gather the variable quantity of described gas leakage gathering-device internal leakage gas pressure, described signal output apparatus connects described signal pickup assembly to judge whether the size of Leakage Gas and leakage rate according to the variable quantity of described gas leakage pressure.
Based on above-mentioned, described gas pressure sensor is strain gauge pressure transducer, semiconductor gauge pressure transducer, piezoresistive pressure transducer, inductance pressure transducer or capacitance pressure transducer.
Based on above-mentioned, also comprise the flange gasket of band gas port, the suction port of described gas leakage gathering-device is communicated to the gas port of described flange gasket by air pipe.
Based on above-mentioned, described sensor module also comprise display device and for by data upload to the data unofficial biography device of master system, described display device is connected described signal output apparatus respectively with described data unofficial biography device.
The utility model hinge structure has substantive distinguishing features and progress, and specifically, pipeline gas leak detecting device of the present utility model has practical, that cost is low and safety coefficient is high advantage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 1, a kind of pipeline gas leak detecting device, it comprises gas leakage gathering-device 1 and is arranged on the sensor module of described gas leakage gathering-device 1 inside, described gas leakage gathering-device 1 is provided with suction port 11 and is controlled the air outlet 12 of keying by solenoid valve 3, described sensor module comprises gas pressure sensor 21, signal pickup assembly 22 and signal output apparatus 23, the suction port 11 of described gas leakage gathering-device 1 is communicated with the leakage point of gas pipeline, described signals collecting 22 device connects described gas pressure sensor 21 to gather the variable quantity of described gas leakage gathering-device 1 internal leakage gas pressure, described signal output apparatus 23 connects described signal pickup assembly 22 to judge whether the size of Leakage Gas and leakage rate according to the variable quantity of described gas leakage pressure.
When piping flange jointing has Leakage Gas, the gas leaked is collected into described gas leakage gathering-device 1 through the suction port 11 of described gas leakage gathering-device 1, use described sensor module to detect gas pressure change, namely can detect gas and whether leak and quantity of gas leakage size.
During detection, start described solenoid valve 3 and open described air outlet 12, detected by described sensor module and obtain initial gas pressure and be designated as p
0; Close described solenoid valve 3, after time Δ t, described sensor module starts, and detecting and obtaining current gas pressure intensity is p
1;
If p
0=p
1, then gas-tight;
If p
1>p
0, then illustrate there is Leakage Gas;
Remember that the volume of described gas leakage gathering-device 1 is V
1, after having gas leakage to enter, gas pressure intensity is p
1, constancy of volume is still V
1; By p
1v
1=p
0(V
1+ Δ V), obtain Δ V=(p
1/p
0-1) V
1, then the quantity of gas leakage in the unit time is: Δ V/ Δ t(ml/min), obtain the leakage rate of gas in the Δ t time thus.
When specifically installing and using, also comprise the flange gasket 4 of band gas port, the suction port 11 of described gas leakage gathering-device 1 is communicated to the gas port 6 of described flange gasket 4 by air pipe 5.
When specifically selecting sensor, described gas sensing member can select semiconductor gas sensor, catalytic combustion sensor or electrochemical sensor.
In other embodiments, described sensor module also include display device and for by data upload to the data unofficial biography device of master system, described display device is connected described signal output apparatus respectively with described data unofficial biography device, described data unofficial biography device according to specific needs, adopt wireless or wired data transfer mode, thus make to look into and see if there is Leakage Gas in scene, can also remote centralized control be carried out.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to embodiment of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope of the utility model request protection.
Claims (4)
1. a pipeline gas leak detecting device, it is characterized in that: it comprises gas leakage gathering-device and is arranged on the sensor module of described gas leakage gathering-device inside, the air outlet that described gas leakage gathering-device is provided with suction port and is opened and closed by electromagnetic valve, described sensor module comprises gas pressure sensor, signal pickup assembly and signal output apparatus, the suction port of described gas leakage gathering-device is communicated with the leakage point of gas pipeline, described signal pickup assembly connects described gas pressure sensor to gather the variable quantity of described gas leakage gathering-device internal leakage gas pressure, described signal output apparatus connects described signal pickup assembly to judge whether the size of Leakage Gas and leakage rate according to the variable quantity of described gas leakage pressure.
2. pipeline gas leak detecting device according to claim 1, is characterized in that: described gas pressure sensor is strain gauge pressure transducer, semiconductor gauge pressure transducer, piezoresistive pressure transducer, inductance pressure transducer or capacitance pressure transducer.
3. pipeline gas leak detecting device according to claim 1, is characterized in that: the flange gasket also comprising band gas port, the suction port of described gas leakage gathering-device is communicated to the gas port of described flange gasket by air pipe.
4. the pipeline gas leak detecting device according to claim 1 or 2 or 3, it is characterized in that: described sensor module also comprise display device and for by data upload to the data unofficial biography device of master system, described display device is connected described signal output apparatus respectively with described data unofficial biography device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409711.4U CN204717358U (en) | 2015-06-15 | 2015-06-15 | Pipeline gas leak detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409711.4U CN204717358U (en) | 2015-06-15 | 2015-06-15 | Pipeline gas leak detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204717358U true CN204717358U (en) | 2015-10-21 |
Family
ID=54316358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520409711.4U Withdrawn - After Issue CN204717358U (en) | 2015-06-15 | 2015-06-15 | Pipeline gas leak detecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204717358U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913204A (en) * | 2015-06-15 | 2015-09-16 | 河南汉威电子股份有限公司 | Pipeline gas leakage detecting device and method |
| CN109555978A (en) * | 2018-12-10 | 2019-04-02 | 华东理工大学 | A kind of flange leakage on-Line Monitor Device based on ultrasonic acoustic generator |
| CN109979163A (en) * | 2019-05-15 | 2019-07-05 | 永康微唯智能科技有限公司 | A kind of carbon monoxide leakage alarm system for kitchen use |
| CN110146233A (en) * | 2019-06-25 | 2019-08-20 | 杨哲 | Gas leak detection apparatus |
| CN112051006A (en) * | 2020-09-09 | 2020-12-08 | 广东冠电科技股份有限公司 | Instrument and instrument equipment on-line monitoring device based on industrial internet |
-
2015
- 2015-06-15 CN CN201520409711.4U patent/CN204717358U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913204A (en) * | 2015-06-15 | 2015-09-16 | 河南汉威电子股份有限公司 | Pipeline gas leakage detecting device and method |
| CN104913204B (en) * | 2015-06-15 | 2018-02-13 | 汉威科技集团股份有限公司 | Pipeline gas leak detecting device and its detection method |
| CN109555978A (en) * | 2018-12-10 | 2019-04-02 | 华东理工大学 | A kind of flange leakage on-Line Monitor Device based on ultrasonic acoustic generator |
| CN109555978B (en) * | 2018-12-10 | 2020-03-20 | 华东理工大学 | Flange leakage on-line monitoring device based on ultrasonic sounder |
| CN109979163A (en) * | 2019-05-15 | 2019-07-05 | 永康微唯智能科技有限公司 | A kind of carbon monoxide leakage alarm system for kitchen use |
| CN110146233A (en) * | 2019-06-25 | 2019-08-20 | 杨哲 | Gas leak detection apparatus |
| CN112051006A (en) * | 2020-09-09 | 2020-12-08 | 广东冠电科技股份有限公司 | Instrument and instrument equipment on-line monitoring device based on industrial internet |
| CN112051006B (en) * | 2020-09-09 | 2023-03-10 | 广东冠电科技股份有限公司 | Instrument and instrument equipment on-line monitoring device based on industrial internet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 Zhengzhou high tech Development Zone, Henan, Cedar Road, No. 169 Patentee after: Hanwei Technology Group Limited by Share Ltd Address before: 450001 Zhengzhou high tech Development Zone, Henan, Cedar Road, No. 169 Patentee before: Henan Hanwei Electronics Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151021 Effective date of abandoning: 20180213 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20151021 Effective date of abandoning: 20180213 |