CN204718761U - Flow type pipe flange gas leak detection apparatus - Google Patents
Flow type pipe flange gas leak detection apparatus Download PDFInfo
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- CN204718761U CN204718761U CN201520409733.0U CN201520409733U CN204718761U CN 204718761 U CN204718761 U CN 204718761U CN 201520409733 U CN201520409733 U CN 201520409733U CN 204718761 U CN204718761 U CN 204718761U
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Abstract
The utility model provides a kind of flow type pipe flange gas leak detection apparatus, it comprises flange gasket and the sensor module of band gas port, described sensor module comprises flow sensor, signal pickup assembly and signal output apparatus, described flow sensor is provided with air intake opening and gas outlet, the air intake opening of described flow sensor is communicated to the gas port of described flange gasket by wireway, described signal pickup assembly connects described flow sensor to gather the variable quantity of leakage gas flow, 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 leakage gas flow.The utility model by arranging gas port on flange gasket, and the wireway through connecting gas port collects gas leakage to flow sensor, can detect the Leakage Gas at gas pipe line flange place, there is practical, perfect in shape and function, structure is simple, safety coefficient is high advantage.
Description
Technical field
The utility model relates to a kind of gas leak detection apparatus, specifically, relate to a kind of flow type pipe flange gas leak detection apparatus that can detect gas pipe line flange place Leakage Gas.
Background technology
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 fastening 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 coupling bolt; Pipe vibration makes coupling bolt loosen; The voltage withstand class of encapsulant does not reach code requirement; The aging screen resilience of pad that causes of encapsulant declines; The structure model selection of sealing gasket is improper.After these factors exist direct or indirect impact, particularly pipeline air-inlet to pipe flange sealing property, 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 Detection employing is that pipeline is patrolled and examined, easily undetected to minute leakage point, therefore, needs to take more effective detection 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, structure is simple, safety coefficient is high flow type pipe flange gas leak detection apparatus.
To achieve these goals, the technical scheme that the utility model adopts is: a kind of flow type pipe flange gas leak detection apparatus, it comprises flange gasket and the sensor module of band gas port, described sensor module comprises flow sensor, signal pickup assembly and signal output apparatus, described flow sensor is provided with air intake opening and gas outlet, the air intake opening of described flow sensor is communicated to the gas port of described flange gasket by wireway, described signal pickup assembly connects described flow sensor to gather the variable quantity of leakage gas flow, 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 leakage gas flow.
Based on above-mentioned, described sensor module also comprise display and for by data upload to the data unofficial biography device of master system, described display 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 by arranging gas port on flange gasket, and the wireway through connecting gas port collects gas leakage to flow sensor, can detect the Leakage Gas at gas pipe line flange place, there is practical, perfect in shape and function, structure is simple, safety coefficient is high advantage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model flange gasket.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of flow type pipe flange gas leak detection apparatus, it comprises flange gasket 1 and the sensor module of band gas port 11, described sensor module comprises flow sensor 2, signal pickup assembly and signal output apparatus, described flow sensor 2 is provided with air intake opening 21 and gas outlet 22, the air intake opening 21 of described flow sensor 2 is communicated to the gas port 11 of described flange gasket 1 by wireway 3, the gas outlet of described flow sensor 2 is in communication with the outside, described signal pickup assembly connects described flow sensor to gather the variable quantity of leakage gas flow, 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 leakage gas flow.
In the course of work, when pipe flange interface has Leakage Gas, the gas leaked is collected into described flow sensor 2 through the gas port 11 of described flange gasket 1 and wireway 3, and namely the flow of the gas using described flow sensor 2 to detect is the leakage rate of pipe flange place gas.
According to the variable quantity of the leakage gas flow that described signal pickup assembly gathers, described signal output apparatus can judge whether the size of Leakage Gas and leakage rate, and specifically, the electric signal that described signal pickup assembly collects, being generally size is V
1voltage signal, calculated the A/D conversion value of collection signal by formula (1), namely described signal output apparatus can calculate the flow of current gas through the calculation procedure of correspondence.
（1）
Wherein N is the figure place of A/D converter in signal pickup assembly, V
rEFfor the reference voltage of A/D converter.
In other embodiments, described sensor module also include display and for by data upload to the data unofficial biography device of master system, described display 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 technical scheme scope of the utility model request protection.
Claims (2)
1. a flow type pipe flange gas leak detection apparatus, it is characterized in that: it comprises flange gasket and the sensor module of band gas port, described sensor module comprises flow sensor, signal pickup assembly and signal output apparatus, described flow sensor is provided with air intake opening and gas outlet, the air intake opening of described flow sensor is communicated to the gas port of described flange gasket by wireway, described signal pickup assembly connects described flow sensor to gather the variable quantity of leakage gas flow, 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 leakage gas flow.
2. flow type pipe flange gas leak detection apparatus according to claim 1, it is characterized in that: described sensor module also comprise display and for by data upload to the data unofficial biography device of master system, described display is connected described signal output apparatus respectively with described data unofficial biography device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409733.0U CN204718761U (en) | 2015-06-15 | 2015-06-15 | Flow type pipe flange gas leak detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409733.0U CN204718761U (en) | 2015-06-15 | 2015-06-15 | Flow type pipe flange gas leak detection apparatus |
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| CN204718761U true CN204718761U (en) | 2015-10-21 |
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| CN201520409733.0U Active CN204718761U (en) | 2015-06-15 | 2015-06-15 | Flow type pipe flange gas leak detection apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422854A (en) * | 2015-12-29 | 2016-03-23 | 周庆涛 | Self-pressure test gasket and application method thereof |
| WO2018193030A1 (en) | 2017-04-20 | 2018-10-25 | Siemens Schweiz Ag | Ultrasonic flow meter |
| CN109115425A (en) * | 2018-09-26 | 2019-01-01 | 长春微控机械制造有限公司 | A kind of gas leakage marking apparatus |
| CN110630362A (en) * | 2019-09-21 | 2019-12-31 | 合肥神舟催化净化器股份有限公司 | Automobile exhaust purification catalyst |
| CN114383325A (en) * | 2022-01-14 | 2022-04-22 | 珠海格力电器股份有限公司 | Gas leakage prevention device, gas water heater and control method and device of gas water heater |
| CN114576444A (en) * | 2022-01-19 | 2022-06-03 | 唐莹莹 | Coping pipeline leakage flange based on stability improvement |
-
2015
- 2015-06-15 CN CN201520409733.0U patent/CN204718761U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422854A (en) * | 2015-12-29 | 2016-03-23 | 周庆涛 | Self-pressure test gasket and application method thereof |
| WO2018193030A1 (en) | 2017-04-20 | 2018-10-25 | Siemens Schweiz Ag | Ultrasonic flow meter |
| US11118950B2 (en) | 2017-04-20 | 2021-09-14 | Siemens Schweiz Ag | Ultrasonic flow meter |
| CN109115425A (en) * | 2018-09-26 | 2019-01-01 | 长春微控机械制造有限公司 | A kind of gas leakage marking apparatus |
| CN110630362A (en) * | 2019-09-21 | 2019-12-31 | 合肥神舟催化净化器股份有限公司 | Automobile exhaust purification catalyst |
| CN110630362B (en) * | 2019-09-21 | 2021-01-19 | 合肥神舟催化净化器股份有限公司 | Automobile exhaust purification catalyst |
| CN114383325A (en) * | 2022-01-14 | 2022-04-22 | 珠海格力电器股份有限公司 | Gas leakage prevention device, gas water heater and control method and device of gas water heater |
| CN114576444A (en) * | 2022-01-19 | 2022-06-03 | 唐莹莹 | Coping pipeline leakage flange based on stability improvement |
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| C14 | Grant of patent or utility model | ||
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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. |