CN204387697U - Pipeline gas leak detecting device - Google Patents

Pipeline gas leak detecting device Download PDF

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Publication number
CN204387697U
CN204387697U CN201420747220.6U CN201420747220U CN204387697U CN 204387697 U CN204387697 U CN 204387697U CN 201420747220 U CN201420747220 U CN 201420747220U CN 204387697 U CN204387697 U CN 204387697U
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CN
China
Prior art keywords
seal closure
gas
air outlet
flow transducer
leakage
Prior art date
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Active
Application number
CN201420747220.6U
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Chinese (zh)
Inventor
金鑫
李明辉
赵静
王帅宇
梁姬君
李文芳
张晓楠
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Hanwei Technology Group Limited by Share Ltd
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Henan Hanwei Electronics Co Ltd
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Priority to CN201420747220.6U priority Critical patent/CN204387697U/en
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Abstract

The utility model provides a kind of pipeline gas leak detecting device, it comprises seal closure for Clad pipe interface leak point and sensor module, described seal closure is provided with seal closure air outlet, described sensor module comprises flow transducer, signal pickup assembly and signal output apparatus, described flow transducer is provided with suction port and air outlet, described seal closure air outlet is communicated with the suction port of described flow transducer, described signal pickup assembly connects described flow transducer to gather the gas flow of described seal closure air outlet, described signal output apparatus connects described signal pickup assembly to judge whether the size of Leakage Gas and leakage rate according to the gas flow of described seal closure air outlet.The utility model collects gas leakage by arranging seal closure, and adopts flow transducer acquisition testing signal, can detect the Leakage Gas at gas pipeline flange place, has practical, Perfect in shape and function, advantage that safety coefficient is high.

Description

Pipeline gas leak detecting device
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 at gas pipeline flange place.
Background technique
In pipeline gas transmission, because pipe diameter scope is comparatively large, needing the pipeline section place of frequent dismounting and pipeline and the joining place of equipment, mostly adopt flange connect.Its sealing 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.
Summary of the invention
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, pipeline gas leak detecting device that safety coefficient is high.
To achieve these goals, the technological scheme that the utility model adopts is: a kind of pipeline gas leak detecting device, it comprises seal closure for Clad pipe interface leak point and sensor module, described seal closure is provided with seal closure air outlet, described sensor module comprises flow transducer, signal pickup assembly and signal output apparatus, described flow transducer is provided with suction port and air outlet, described seal closure air outlet is communicated with the suction port of described flow transducer, described signal pickup assembly connects described flow transducer to gather the gas flow of described seal closure air outlet, described signal output apparatus connects described signal pickup assembly to judge whether the size of Leakage Gas and leakage rate according to the gas flow of described seal closure air outlet.
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, specifically, the utility model collects gas leakage by arranging seal closure, and adopt flow transducer acquisition testing signal, can detect the Leakage Gas at gas pipeline flange place, there is practical, Perfect in shape and function, advantage that safety coefficient is high.
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 seal closure 2 for Clad pipe interface leak point and sensor module, described seal closure 2 is arranged on the pipe interface flange 1 of doubtful leak source around, and the tested regional seal of whole pipe interface flange 1 is surrounded, described seal closure 2 is provided with seal closure air outlet 3, described sensor module comprises flow transducer 4, signal pickup assembly and signal output apparatus, described flow transducer 4 is provided with suction port and air outlet, described seal closure air outlet 3 is communicated with the suction port of described flow transducer 3, the air outlet of described flow transducer 3 is in communication with the outside, described signal pickup assembly connects described flow transducer 3 to gather the gas flow of described seal closure air outlet 3, described signal output apparatus connects described signal pickup assembly to judge whether the size of Leakage Gas and leakage rate according to the gas flow of described seal closure air outlet 3.
In working procedure, when there is Leakage Gas doubtful leak point in described seal closure 2, the gas of leakage is collected in described seal closure 2 inside, and flows out from described seal closure air outlet 3, enters the suction port of described flow transducer 4.Because gas leakage amount size is identical with the gas size flowing through described seal closure air outlet 3, described flow transducer 4 is used to measure the flow of described seal closure air outlet 3, described flow transducer 4 exports the signal proportional with the gas flow of described seal closure air outlet 3, according to this signal, the size of Leakage Gas and leakage rate namely can be judged whether.
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 (2)

1. a pipeline gas leak detecting device, it is characterized in that: it comprises seal closure for Clad pipe interface leak point and sensor module, described seal closure is provided with seal closure air outlet, described sensor module comprises flow transducer, signal pickup assembly and signal output apparatus, described flow transducer is provided with suction port and air outlet, described seal closure air outlet is communicated with the suction port of described flow transducer, described signal pickup assembly connects described flow transducer to gather the gas flow of described seal closure air outlet, described signal output apparatus connects described signal pickup assembly to judge whether the size of Leakage Gas and leakage rate according to the gas flow of described seal closure air outlet.
2. pipeline gas leak detecting device according to claim 1, 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.
CN201420747220.6U 2014-12-03 2014-12-03 Pipeline gas leak detecting device Active CN204387697U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420747220.6U CN204387697U (en) 2014-12-03 2014-12-03 Pipeline gas leak detecting device

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Application Number Priority Date Filing Date Title
CN201420747220.6U CN204387697U (en) 2014-12-03 2014-12-03 Pipeline gas leak detecting device

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CN204387697U true CN204387697U (en) 2015-06-10

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Cited By (5)

* Cited by examiner, † Cited by third party
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
CN105114816A (en) * 2015-08-19 2015-12-02 北京亿鸟环保科技有限公司 Detecting device for fuel gas leakage of buried pipeline system
CN105736953A (en) * 2016-04-22 2016-07-06 中国计量大学 Pressure sensing based liquid ammonia pipeline leak detection system with cladding layer and detection method
CN106322050A (en) * 2015-06-19 2017-01-11 宝山钢铁股份有限公司 Leakproof device of connecting part
CN111638008A (en) * 2020-06-01 2020-09-08 广东电网有限责任公司 SF6 equipment sealing flange gas leakage detection device and application method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
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
CN106322050A (en) * 2015-06-19 2017-01-11 宝山钢铁股份有限公司 Leakproof device of connecting part
CN105114816A (en) * 2015-08-19 2015-12-02 北京亿鸟环保科技有限公司 Detecting device for fuel gas leakage of buried pipeline system
CN105114816B (en) * 2015-08-19 2017-11-03 北京亿鸟环保科技有限公司 A kind of detection means of buried pipeline system gas leakage
CN105736953A (en) * 2016-04-22 2016-07-06 中国计量大学 Pressure sensing based liquid ammonia pipeline leak detection system with cladding layer and detection method
CN105736953B (en) * 2016-04-22 2017-10-10 中国计量大学 A kind of the liquefied ammonia pipeline leakage checking system with clad and its method based on pressure sensitive
CN111638008A (en) * 2020-06-01 2020-09-08 广东电网有限责任公司 SF6 equipment sealing flange gas leakage detection device and application method thereof

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C14 Grant of patent or utility model
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.

CP01 Change in the name or title of a patent holder