CN102435472B - Urban underground pipe network gas detection device and detection method thereof - Google Patents
Urban underground pipe network gas detection device and detection method thereof Download PDFInfo
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- CN102435472B CN102435472B CN201110417306.3A CN201110417306A CN102435472B CN 102435472 B CN102435472 B CN 102435472B CN 201110417306 A CN201110417306 A CN 201110417306A CN 102435472 B CN102435472 B CN 102435472B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The invention provides an urban underground pipe network gas detection device and a detection method thereof. The device comprises an air inlet valve, a gas filtering device, a gas detection chamber, a gas pump and an air exhaust valve which are sequentially connected as well as a microprocessor module, a liquid level detection sensor and a gas sensor which is arranged in the gas detection chamber; and the microprocessor module respectively controls the air inlet valve, the air exhaust valve, the gas pump, the liquid level detection sensor and the gas sensor. The method comprises the following steps of: placing the urban underground pipe network gas detection device into an urban underground pipe network; acquiring the liquid level value in the urban underground pipe network by virtue of the microprocessor module; if the liquid level value is more than a preset liquid level value, controlling the air inlet valve and the air exhaust valve to be opened and controlling the gas pump to be started by virtue of the microprocessor module; and then acquiring the gas concentration value in the urban underground pipe network. The device provided by the invention has the advantages of simple structure, control convenience and high safety and reliability, and the method provided by the invention is simple and practical, has strong applicability and is easy to realize.
Description
Technical field
The present invention relates to a kind of gas detection equipment, specifically, related to a kind of Urban Buried Pipeline Network gas-detecting device and detection method thereof.
Background technology
Urban Buried Pipeline Network is the important component part of urban infrastructure, is the basic guarantee of modern city high-quality, high-level efficiency running; Yet, in the Urban Buried Pipeline Network environment of relative closure, easily build up inflammable gas or toxic and harmful, and then, the accident such as easily set off an explosion, poisoning, this has caused great potential safety hazard to public safety, so, necessary gas in Urban Buried Pipeline Network is effectively monitored.
At present, gas in Urban Buried Pipeline Network is sampled and the work that detects is separately carried out mostly,, need to first gather sample gas, and then carry out the detection of sample gas index of correlation, and be mostly manual work, complex steps, waste time and energy, and can damage near the healthy of personnel after the inflammable gas in pipe network or toxic and harmful diffusion; In addition, also have gas sensor is directly exposed to the mode detecting in underground pipe network environment, but this mode is very large to gas sensor infringement, also influential to accuracy of detection.
In order to solve the problem of above existence, people are seeking a kind of desirable technical solution always.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, thereby provide a kind of simple in structure, control convenient, safe and reliable, centralized procurement sample and be integrated, can effectively prevent that gas cross from disturbing, can effectively stop liquid to enter the Urban Buried Pipeline Network gas-detecting device of gas circuit inside with detecting, also provide a kind of simple and practical, application strong, be easy to the detection method of the Urban Buried Pipeline Network gas-detecting device of realization.
To achieve these goals, the technical solution adopted in the present invention is: a kind of Urban Buried Pipeline Network gas-detecting device, and it comprises microprocessor module, air intake valve, drain tap, air pump, liquid level detecting sensor, gas-filtering device, gas-detecting cavity chamber and gas sensor; Wherein, the outlet of described air intake valve is communicated with the air intake opening of described gas-filtering device, the gas outlet of described gas-filtering device is communicated with the import of described gas-detecting cavity chamber, the outlet of described gas-detecting cavity chamber is communicated with the air intake opening of described air pump, the gas outlet of described air pump is communicated with the import of described drain tap, and it is indoor that described gas sensor is arranged on described gas-detecting cavity; Described microprocessor module connects respectively the signal output part of the on off control end of the keying control end of the keying control end of described air intake valve, described drain tap, described air pump, described liquid level detecting sensor and the signal output part of described gas sensor.
Based on above-mentioned, described air intake valve, described gas-filtering device, described gas-detecting cavity chamber, described air pump are connected by gas circuit conduit with described drain tap, and form the shape of falling U gas circuit structure, wherein, the import of described air intake valve is concordant with the outlet of described drain tap.
A detection method for Urban Buried Pipeline Network gas-detecting device, this detection method comprises the following steps:
If the described level value of step 3 is greater than the default level value of described microprocessor module, described microprocessor module is controlled described air intake valve and the unlatching of described drain tap, and controls described air pump startup; If described level value is not more than the default level value of described microprocessor module, return to step 2;
Based on above-mentioned, in step 3, if described level value is greater than the default level value of described microprocessor module, described microprocessor module is controlled described air intake valve and the unlatching of described drain tap, and controls described air pump startup; Described air pump starts after certain hour, and described microprocessor module controls described air intake valve and described drain tap is closed, and controls described air pump and close down.
The relative prior art of the present invention has outstanding substantive distinguishing features and marked improvement, specifically, this gas-detecting device centralized procurement sample and testing are integrated, adopt the mode of of short duration sampling, built-in gas filtration and airtight detection, the intersection that can effectively prevent gas is disturbed, thereby guaranteed the accuracy detecting, and effectively having prevented that by the valve of liquid level detecting sensor, gas circuit both sides and the gas circuit structure designing according to law of connected vessels liquid from entering gas circuit inside, it has advantages of simple in structure, control convenience, safe and reliable; This detection method is simple and practical, application strong, be easy to realization.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
As shown in Figure 1, a kind of Urban Buried Pipeline Network gas-detecting device, it comprises microprocessor module, air intake valve 4, drain tap 5, air pump 2, liquid level detecting sensor, gas-filtering device 3, gas-detecting cavity chamber 1 and gas sensor; Wherein, the outlet of described air intake valve 4 is communicated with the air intake opening of described gas-filtering device 3, the gas outlet of described gas-filtering device 3 is communicated with the import of described gas-detecting cavity chamber 1, the outlet of described gas-detecting cavity chamber 1 is communicated with the air intake opening of described air pump 2, and the gas outlet of described air pump 2 is communicated with the import of described drain tap 5; Described air intake valve 4, described gas-filtering device 3, described gas-detecting cavity chamber 1, described air pump 2 and described drain tap 5 are connected by gas circuit conduit, and the formation shape of falling U gas circuit structure, wherein, the import of described air intake valve 4 is concordant with the outlet of described drain tap 5; Described gas sensor is arranged in described gas-detecting cavity chamber 1; Described microprocessor module connects respectively the keying control end of described air intake valve, the keying control end of described drain tap 4, the on off control end of described air pump 2, the signal output part of described liquid level detecting sensor and the signal output part of described gas sensor; Described gas-filtering device 3 is for filtering gas impurity, moisture etc., in order to avoid affect the sampling precision of gas sensor.
A detection method for Urban Buried Pipeline Network gas-detecting device, comprises the following steps:
If the described level value of step 3 is greater than the default level value of described microprocessor module, described microprocessor module is controlled described air intake valve and the unlatching of described drain tap, and controls described air pump startup; Described air pump starts after certain hour, and described microprocessor module controls described air intake valve and described drain tap is closed, and controls described air pump and close down;
If described level value is not more than the default level value of described microprocessor module, return to step 2;
In actual applications, described Urban Buried Pipeline Network gas-detecting device adopts timing start mode work, is beneficial to saving electric energy; For example, every 15 minutes, start once, be considered as a work period, and define each work period and be no more than 3 minutes; Within each work period, as met described level value, preset the condition of level value as described in being greater than, complete once complete gas sampling work, now, described Urban Buried Pipeline Network gas-detecting device enters dormancy or off-position immediately, if in 3 minutes, fail to meet aforementioned condition always, can not complete a gas sampling job, start next time treating, enter the next work period after row judgement again.
During sample detecting, first by liquid level detecting sensor, obtain liquid level information, when liquid level is during lower than air intake opening, open the valve of gas circuit conduit both sides, then air pump is started working, extraneous gas arrives gas-detecting cavity chamber through gas circuit conduit, gas-filtering device, meanwhile, to the original gas in gas circuit is discharged, then, valve and the air pump of closing gas circuit conduit both sides detect confined gas in gas-detecting cavity chamber.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present invention; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (4)
1. a Urban Buried Pipeline Network gas-detecting device, is characterized in that: it comprises microprocessor module, air intake valve, drain tap, air pump, liquid level detecting sensor, gas-filtering device, gas-detecting cavity chamber and gas sensor; Wherein, the outlet of described air intake valve is communicated with the air intake opening of described gas-filtering device, the gas outlet of described gas-filtering device is communicated with the import of described gas-detecting cavity chamber, the outlet of described gas-detecting cavity chamber is communicated with the air intake opening of described air pump, the gas outlet of described air pump is communicated with the import of described drain tap, and it is indoor that described gas sensor is arranged on described gas-detecting cavity; Described microprocessor module connects the signal output part of described liquid level detecting sensor to obtain the level value in the Urban Buried Pipeline Network that described liquid level detecting sensor detects by described microprocessor module; Described microprocessor module connects respectively the on off control end of the keying control end of the keying control end of described air intake valve, described drain tap, described air pump and the signal output part of described gas sensor, if described level value is greater than the default level value of described microprocessor module, described microprocessor module is controlled described air intake valve and the unlatching of described drain tap, and control described air pump and start, then obtain the gas concentration value in the Urban Buried Pipeline Network that described gas sensor detects by described microprocessor module.
2. Urban Buried Pipeline Network gas-detecting device according to claim 1, it is characterized in that: described air intake valve, described gas-filtering device, described gas-detecting cavity chamber, described air pump are connected by gas circuit conduit with described drain tap, and the formation shape of falling U gas circuit structure, wherein, the import of described air intake valve and the outlet of described drain tap are concordant.
3. the detection method of Urban Buried Pipeline Network gas-detecting device described in claim 1, is characterized in that, this detection method comprises the following steps:
Step 1, described Urban Buried Pipeline Network gas-detecting device is placed in to Urban Buried Pipeline Network;
Step 2, by described microprocessor module, obtain the level value in the Urban Buried Pipeline Network that described liquid level detecting sensor detects;
If the described level value of step 3 is greater than the default level value of described microprocessor module, described microprocessor module is controlled described air intake valve and the unlatching of described drain tap, and controls described air pump startup; If described level value is not more than the default level value of described microprocessor module, return to step 2;
Step 4, by described microprocessor module, obtain the gas concentration value in the Urban Buried Pipeline Network that described gas sensor detects.
4. the detection method of Urban Buried Pipeline Network gas-detecting device according to claim 3, it is characterized in that: in step 3, if described level value is greater than the default level value of described microprocessor module, described microprocessor module is controlled described air intake valve and the unlatching of described drain tap, and controls described air pump startup; Described air pump starts after certain hour, and described microprocessor module controls described air intake valve and described drain tap is closed, and controls described air pump and close down.
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| CN201110417306.3A CN102435472B (en) | 2011-12-14 | 2011-12-14 | Urban underground pipe network gas detection device and detection method thereof |
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| CN201110417306.3A CN102435472B (en) | 2011-12-14 | 2011-12-14 | Urban underground pipe network gas detection device and detection method thereof |
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| CN102435472A CN102435472A (en) | 2012-05-02 |
| CN102435472B true CN102435472B (en) | 2014-01-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102800172A (en) * | 2012-07-27 | 2012-11-28 | 浙江三峰电子有限公司 | Household gas alarm and calibration method thereof |
| CN103645245B (en) * | 2013-12-21 | 2016-09-07 | 山东中保康医疗器具有限公司 | Ultrasonic oxygen concentration detects display device continuously |
| CN107340125A (en) * | 2017-07-07 | 2017-11-10 | 四川云图瑞科技有限公司 | Three-dimensional modeling and data monitoring system for the existing pipeline in underground |
| CN108107236A (en) * | 2017-12-06 | 2018-06-01 | 国网宁夏电力有限公司宁东供电公司 | A kind of cable duct intelligent acquisition unit protection babinet |
| CN110196308A (en) * | 2018-02-27 | 2019-09-03 | 研能科技股份有限公司 | Gas-detecting device |
| CN110412209A (en) * | 2018-04-27 | 2019-11-05 | 研能科技股份有限公司 | Gas-detecting device |
| CN109490249A (en) * | 2018-10-22 | 2019-03-19 | 安徽辰控智能科技有限公司 | Combustible gas monitoring equipment, method and system |
| CN110441483A (en) * | 2019-09-06 | 2019-11-12 | 郑州畅威物联网科技有限公司 | Gas sensor protective device and Urban Buried Pipeline Network gas detection method |
| CN110726806B (en) * | 2019-09-29 | 2022-06-14 | 广东聚源管业实业有限公司 | Pipeline detection method under gas sensor detection device |
| CN112505249B (en) * | 2020-06-30 | 2022-12-13 | 沈阳达能电安全高新产业技术研究院有限公司 | Waterproof gas meter box |
| CN116212601B (en) * | 2023-05-05 | 2023-10-27 | 西安曜合信息科技有限公司 | Urban underground pipe network gas detection system |
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| US7481125B2 (en) * | 1996-08-22 | 2009-01-27 | Mayeaux Donald P | Devices for obtaining cylinder samples of natural gas or process gas, and methods therefore |
| CN201638035U (en) * | 2009-12-28 | 2010-11-17 | 钟啸风 | System for automatically monitoring and processing multi-parameter gas |
| CN202393631U (en) * | 2011-12-14 | 2012-08-22 | 河南汉威电子股份有限公司 | Gas detection device for urban underground pipeline network |
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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. |