CN204882003U - Gas drainage drilling leakproofness detection device - Google Patents

Gas drainage drilling leakproofness detection device Download PDF

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Publication number
CN204882003U
CN204882003U CN201520543263.7U CN201520543263U CN204882003U CN 204882003 U CN204882003 U CN 204882003U CN 201520543263 U CN201520543263 U CN 201520543263U CN 204882003 U CN204882003 U CN 204882003U
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CN
China
Prior art keywords
cylindrical cavity
gasbag
rib
air bag
circular cylindrical
Prior art date
Application number
CN201520543263.7U
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Chinese (zh)
Inventor
李祥春
聂百胜
杨春丽
赵艺良
Original Assignee
中国矿业大学(北京)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中国矿业大学(北京) filed Critical 中国矿业大学(北京)
Priority to CN201520543263.7U priority Critical patent/CN204882003U/en
Application granted granted Critical
Publication of CN204882003U publication Critical patent/CN204882003U/en

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Abstract

The utility model discloses a gas drainage drilling leakproofness detection device, including cylindrical cavity, the one end opening of cylindrical cavity, a centre bore is opened to the centre of the other end, and open in the around the Center hole has the round air intake, takes out to adopt to manage and passes the centre bore inserts in the drilling on the rib to with hole sealing material hole sealing, central drill way installation round gasbag is inflated the back and is taken out to adopt to manage and combine closely, the open end of cylindrical cavity is fixed on the rib and is welded there is round gasbag groove, and the gasbag has been put to the gasbag inslot, and the gasbag is inflated the back and is combined closely with the rib, the cylindrical cavity is internal to be equipped with the round slide rail along the circumference, and the one end of telescopic link is passed through slider and is adorned on the slide rail, and the other end is equipped with the wind speed sensor, the gasbag is connected with the gasbag pump. Programmable controller and wind speed sensor, telescopic link and slider pass through the connecting wire contact. The leakproofness that can realize different drillings detects, confirms gas leakage position and air leakage, practicality, safety, accuracy, high efficiency.

Description

A kind of mash gas pumping drilling device for detecting sealability
Technical field
The utility model relates to a kind of gas pumping detection technique, particularly relates to a kind of mash gas pumping drilling device for detecting sealability.
Background technology
For many years, gas accident proportion in China's coal-mine accident remains high always, cause a tremendous loss of lives and great property loss, also significantly limit ore deposit capacity of well, gas or a kind of greenhouse gases simultaneously, can damage the ozone layer, affect the living environment of the mankind, take precautions against and avoid gas accident to be a difficult problem in the urgent need to address in Safety of Coal Mine Production work as far as possible.In gas accident Prevention Technique, coal bed gas extraction is one of technical measures, is at home and abroad widely applied in mine.Gas pumping mainly rely on drill and sealing of hole come, sealing of hole is the important step of gas pumping.But due to the reason such as geological condition and ature of coal, extraction borehole sealing quality is sometimes also not ideal, there is extraction borehole gas leakage, have impact on coal bed gas extraction effect, and then the normal safe likely having influence on colliery is produced, carry out the research of sealing quality detection technique for these problems and just seem particularly necessary.
At present, along with the continuous progress of science and technology, mash gas pumping drilling sealing of hole detection technique obtains certain development, multiple sealing quality detection technique achieves application in colliery, but because cost is high, process is complicated, testing staff requires that degree is higher, and detection time is longer, can not meet mine safety, efficiently, demand accurately.
Utility model content
The purpose of this utility model is to provide a kind of practical, safety, accurate, efficient mash gas pumping drilling device for detecting sealability.
The purpose of this utility model is achieved through the following technical solutions:
Mash gas pumping drilling device for detecting sealability of the present utility model, comprise circular cylindrical cavity, the one end open of described circular cylindrical cavity, a center pit is opened in the centre of the other end, have a circle air inlet around described center pit, drainage tube is inserted in the boring on described rib through described center pit, and uses sealing material sealing of hole, center port installs a circle air bag, combines closely after inflation with described drainage tube;
The openend of described circular cylindrical cavity to be fixed on rib and to be welded with a circle air bag groove, is placed with air bag, combines closely after described airbag aeration with rib in described air bag groove;
Circumferentially be provided with a circle slide rail in described circular cylindrical cavity, one end of expansion link is loaded on described slide rail by carriage, and the other end is provided with wind speed wind direction sensor;
Described air bag is connected with air pocket pump.
Also comprise control device, described control device comprises Programmable Logic Controller, and described Programmable Logic Controller and wind speed wind direction sensor, expansion link and carriage are contacted by connecting line.
The display panel of described Programmable Logic Controller there are start button and conclusion button.
The technical scheme provided as can be seen from above-mentioned the utility model, the mash gas pumping drilling device for detecting sealability that the utility model embodiment provides, the sealing propertytest of different boring can be realized, determine Gas leak position and air leakage, can effectively check sealing of hole effect, judge position and the air leakage of boring gas leakage, can for improving gas pumping effect further and extraction efficiency provides foundation, practical, safety, accurately, efficient.
Accompanying drawing explanation
The structural representation of the mash gas pumping drilling device for detecting sealability that Fig. 1 provides for the utility model embodiment;
Fig. 2 is circular cylindrical cavity front cross-sectional schematic diagram in the utility model embodiment;
Fig. 3 is circular cylindrical cavity openend schematic diagram in the utility model embodiment;
Fig. 4 is circular cylindrical cavity closed end schematic diagram in the utility model embodiment.
In figure:
1---boring, 2---coal seam, 3---sealing material, 4---gim peg, 5---air bag groove, 6---wind speed wind direction sensor, 7---slide rail, 8---expansion link, 9---connecting line, 10---control device, 11---drainage tube, 12---air bag, 13---air inlet, 14---air pocket pump.
Embodiment
To be described in further detail the utility model embodiment below.
Mash gas pumping drilling device for detecting sealability of the present utility model, its preferably embodiment be:
Comprise circular cylindrical cavity, the one end open of described circular cylindrical cavity, a center pit is opened in the centre of the other end, a circle air inlet is had around described center pit, drainage tube is inserted in the boring on described rib through described center pit, and use sealing material sealing of hole, center port installs a circle air bag, combines closely after inflation with described drainage tube;
The openend of described circular cylindrical cavity to be fixed on rib and to be welded with a circle air bag groove, is placed with air bag, combines closely after described airbag aeration with rib in described air bag groove;
Circumferentially be provided with a circle slide rail in described circular cylindrical cavity, one end of expansion link is loaded on described slide rail by carriage, and the other end is provided with wind speed wind direction sensor;
Described air bag is connected with air pocket pump.
Also comprise control device, described control device comprises Programmable Logic Controller, and described Programmable Logic Controller and wind speed wind direction sensor, expansion link and carriage are contacted by connecting line.
The display panel of described Programmable Logic Controller there are start button and conclusion button.
Mash gas pumping drilling device for detecting sealability of the present utility model, the sealing propertytest of different boring can be realized, determine Gas leak position and air leakage, can effectively check sealing of hole effect, judge position and the air leakage of boring gas leakage, can for improving gas pumping effect further and extraction efficiency provides foundation, practical, safety, accurately, efficient.
Specific embodiment:
As shown in Figures 1 to 4, stationary installation, proving installation, control device is mainly comprised.Stationary installation mainly comprises circular cylindrical cavity, air bag, air pocket pump etc.
Proving installation mainly comprises wind speed wind direction sensor, expansion link, slide rail etc.Control device comprises Programmable Logic Controller, connecting line etc.Can realize detecting the sealing of difference boring by this device, determine Gas leak position and air leakage.
Described circular cylindrical cavity is one end open, and the other end is then have the very thin air inlet of a circle and a middle center pit.
Described circular cylindrical cavity one end, the very thin air inlet of a circle can ensure sufficient air quantity and enter, and a middle center pit is greater than drainage tube caliber, and a circle air bag is installed in aperture, can combine closely, can ensure sealing after inflation with drainage tube.
Described circular cylindrical cavity openend is welded with a circle air bag groove, and has certain intensity, is placed with air bag in air bag groove.
Described air bag must have certain elasticity and bearing pressure, can ensure to combine closely with rib, ensures the impermeability that circular cylindrical cavity contacts with rib.
Described air pocket pump has explosion-proof feature, and can meet the air pressure needed for air bag maximum distortion.
Described wind speed wind direction sensor has the high feature of precision, and can move up and down in circular cylindrical cavity.
Described expansion link can the position of extension and contraction control wind speed wind direction sensor, and can the slide rail in circular cylindrical cavity move.
Described Programmable Logic Controller can control the flexible and mobile of expansion link, and shows test results and leak out position and inleakage.
The display panel of described Programmable Logic Controller there are start button and conclusion button, the beginning of control device work respectively and end.
Described Programmable Logic Controller and wind speed wind direction sensor, expansion link, carriage are contacted by connecting line.
The technical scheme provided as can be seen from above-mentioned the utility model, mash gas pumping drilling device for detecting sealability described in the utility model, owing to having advantage that is safe, efficient, accurate, that can reuse, effectively can solve the problem that mash gas pumping drilling sealing property detects, for improving gas pumping effect further and extraction efficiency provides foundation.
In use procedure, first the boring that will detect is determined, by clean for the coal dust cleaning of coal surface in certain limit near boring, circular cylindrical cavity is spliced on request, be close to rib and place, the hole of certain depth is beaten at circular cylindrical cavity four angle rib, cavity is securely fixed in rib, ensures that lower end semi-circular groove presses close to rib as far as possible, then open air pocket pump to the airbag aeration in semi-circular groove, until air bag and rib airtight, and ensure certain impermeability.Then close circular cylindrical cavity closed end, by gas pumping pipe through the center pit of cavity closed end with air bag, with air pocket pump inflation, air bag is combined closely with it.Open control device, observe control display and whether show wind speed, illustrate that borehole sealing is bad if having.And then by controlling the position of carriage and expansion link adjustment wind speed wind direction sensor, examine wind speed change, determine the position of maximum wind velocity, maximum wind velocity is boring Gas leak position at the subpoint of rib.The wind gage that controller can be surveyed according to wind speed wind direction sensor calculates mean wind speed, and calculates air leakage Q.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.

Claims (3)

1. a mash gas pumping drilling device for detecting sealability, it is characterized in that, comprise circular cylindrical cavity, the one end open of described circular cylindrical cavity, a center pit is opened in the centre of the other end, has a circle air inlet around described center pit, drainage tube is inserted in the boring on rib through described center pit, and use sealing material sealing of hole, center port installs a circle air bag, combines closely after inflation with described drainage tube;
The openend of described circular cylindrical cavity to be fixed on rib and to be welded with a circle air bag groove, is placed with air bag, combines closely after described airbag aeration with described rib in described air bag groove;
Circumferentially be provided with a circle slide rail in described circular cylindrical cavity, one end of expansion link is loaded on described slide rail by carriage, and the other end is provided with wind speed wind direction sensor;
Described air bag is connected with air pocket pump.
2. mash gas pumping drilling device for detecting sealability according to claim 1, it is characterized in that, also comprise control device, described control device comprises Programmable Logic Controller, and described Programmable Logic Controller and wind speed wind direction sensor, expansion link and carriage are contacted by connecting line.
3. mash gas pumping drilling device for detecting sealability according to claim 2, is characterized in that, the display panel of described Programmable Logic Controller has start button and conclusion button.
CN201520543263.7U 2015-07-24 2015-07-24 Gas drainage drilling leakproofness detection device CN204882003U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520543263.7U CN204882003U (en) 2015-07-24 2015-07-24 Gas drainage drilling leakproofness detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520543263.7U CN204882003U (en) 2015-07-24 2015-07-24 Gas drainage drilling leakproofness detection device

Publications (1)

Publication Number Publication Date
CN204882003U true CN204882003U (en) 2015-12-16

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Country Status (1)

Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104977143A (en) * 2015-07-24 2015-10-14 中国矿业大学(北京) Gas drainage drilling tightness detection device
CN105757373A (en) * 2016-04-22 2016-07-13 无锡商业职业技术学院 Pipeline sealing device integrating air leakage detecting and filling
CN105757372A (en) * 2016-04-22 2016-07-13 无锡商业职业技术学院 Pipeline sealing device with air leakage detection function
CN105974084A (en) * 2016-07-11 2016-09-28 中国矿业大学(北京) In-coal-seam gas extraction experiment simulation device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104977143A (en) * 2015-07-24 2015-10-14 中国矿业大学(北京) Gas drainage drilling tightness detection device
CN105757373A (en) * 2016-04-22 2016-07-13 无锡商业职业技术学院 Pipeline sealing device integrating air leakage detecting and filling
CN105757372A (en) * 2016-04-22 2016-07-13 无锡商业职业技术学院 Pipeline sealing device with air leakage detection function
CN105974084A (en) * 2016-07-11 2016-09-28 中国矿业大学(北京) In-coal-seam gas extraction experiment simulation device

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C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20151216

Effective date of abandoning: 20180821

AV01 Patent right actively abandoned