CN208502724U - A kind of hole sealing device improving gas extraction concentration - Google Patents
A kind of hole sealing device improving gas extraction concentration Download PDFInfo
- Publication number
- CN208502724U CN208502724U CN201821015997.8U CN201821015997U CN208502724U CN 208502724 U CN208502724 U CN 208502724U CN 201821015997 U CN201821015997 U CN 201821015997U CN 208502724 U CN208502724 U CN 208502724U
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- Prior art keywords
- gas
- hole
- gas drainage
- welded
- sealing
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Abstract
The utility model belongs to gas drainage engineering device technique field, discloses a kind of hole sealing device for improving gas extraction concentration, is provided with gas drainage head；Gas drainage head is welded on gas drainage crust of the device；Gas drainage crust of the device interior welds have extraction pipeline；Uniformly being glued outside gas drainage crust of the device has multiple sealing of hole air bags；Each equal expanded joint of sealing of hole air bag has a ramjet duct；Two sides ramjet duct lower end is welded with air gauge；Inflation envelope pressure gate is welded with below air gauge；Gas drainage crust of the device bottom interference is connected with envelope tracheae, seals tracheae end by being welded and connected with envelope air valve.The utility model first carries out punching press when carrying out methane drawing, makes its expansion, and the clogging extraction channel in coal layer reduces being mixed into for the gas leakage and air when extracting, improves the concentration of gas.
Description
Technical field
The utility model belongs to gas drainage engineering device technique field more particularly to a kind of sealing of hole for improving gas extraction concentration
Device.
Background technique
Currently, the prior art commonly used in the trade is such that
The natural gas that coal mine gas then refers to.The bulk gas that plant generates in coalification course, coal mine gas, also known as coal
Layer gas.The organic matter of rotten plant type, is bacterially decomposed, and produces gas；Thereafter as deposit buried depth increases, very long
In geological epoch, since coal seam is subjected to the effect of high temperature, high pressure, into coal carbonization metamorphic episode, volatile matter is reduced in coal, Gu
Determine carbon increase, and generate a large amount of gas, is stored in the hole and crack of coal seam or rock stratum.
Coal mine gas drainage is exactly to gather region to coal seam and gas to drill, and drilling is connect on dedicated pipeline, with pumping
It adopts equipment and the gas in coal seam and goaf is evacuated to ground, be used；Or it is emitted into total return.But methane drawing
When, gas producing device can not be completely plugged firmly by extracting channel, it is easy to other gases in air be caused to be mixed into methane gas
In, cause the concentration of mash gas extraction to reduce, if also, gas leakage, it is easy to it sets off an explosion, the life of staff is pacified
Very big threat is caused entirely.
In conclusion problem of the existing technology is:
When methane drawing, gas producing device can not be completely plugged firmly by extracting channel, it is easy to cause other in air
Gas is mixed into methane gas, and the concentration of mash gas extraction is caused to reduce, if also, gas leakage, it is easy to it sets off an explosion, it is right
The life security of staff causes very big threat.
Summary of the invention
In view of the problems of the existing technology, the utility model provides a kind of sealing of hole dress for improving gas extraction concentration
It sets.
The utility model is realized in this way a kind of hole sealing device for improving gas extraction concentration is provided with
Gas drainage head；
Gas drainage head is welded on gas drainage crust of the device；Gas drainage crust of the device interior welds have drainage tube
Road；Uniformly being glued outside gas drainage crust of the device has multiple sealing of hole air bags；Each equal expanded joint of sealing of hole air bag has an impact tube
Road；Two sides ramjet duct lower end is welded with air gauge；Inflation envelope pressure gate is welded with below air gauge；Gas drainage crust of the device
Bottom interference is connected with envelope tracheae, seals tracheae end by being welded and connected with envelope air valve.
Further, multiple gas drainage holes are connected on gas drainage head；Convenient for extracting more methane gas.
Further, ramjet duct is respectively provided with there are four punching hole in each sealing of hole air bag；For being quickly sealing of hole air bag
Inflation.
Further, envelope tracheae end is connect with collection device；For being collected to gas export.
The advantages of the utility model and good effect are as follows:
Multiple sealing of hole air bags are provided at left and right sides of the hole sealing device of this novel raising gas extraction concentration, it can be in progress watt
When this is extracted, carry out punching press, make its expansion, the clogging extraction channel in coal layer, reduce gas leakage when extracting and
Air is mixed into, and improves the concentration of gas, and ensure that methane gas will not be revealed, and is reduced explosion danger, is protected
The life security of staff.
Detailed description of the invention
Fig. 1 is the hole sealing device head device provided by the embodiment of the utility model for improving gas extraction concentration.
Fig. 2 is the hole sealing device rear-mounted installation provided by the embodiment of the utility model for improving gas extraction concentration.
In figure: 1, gas drainage head；2, coal layer；3, sealing of hole air bag；4, ramjet duct；5, extraction pipeline；6, gas is taken out
Adopt hole；7, gas drainage crust of the device；8, punching hole；9, tracheae is sealed；10, air lock door is sealed；11, air gauge；12, inflation envelope pressure lock
Door.
Specific embodiment
For the invention, features and effects that can further appreciate that the utility model, the following examples are hereby given, and cooperates
Detailed description are as follows for attached drawing.
As shown in attached drawing 1 and attached drawing 2, the hole sealing device packet provided by the embodiment of the utility model for improving gas extraction concentration
It includes: gas drainage head 1, coal layer 2, sealing of hole air bag 3, ramjet duct 4, extraction pipeline 5, gas drainage hole 6, gas drainage device
Shell 7, punching hole 8, envelope tracheae 9, envelope air lock door 10, air gauge 11, inflation envelope pressure gate 12.
Gas drainage head 1 is welded on gas drainage crust of the device 7；7 interior welds of gas drainage crust of the device have extraction
Pipeline 5；7 outside of gas drainage crust of the device, which is uniformly glued, multiple sealing of hole air bags 3；The equal expanded joint of each sealing of hole air bag 3 has one
Ramjet duct 4；Ramjet duct 4 lower end in two sides is welded with air gauge 11；Inflation envelope pressure gate is welded under two sides air gauge 11
12；The 7 bottom interference of gas drainage crust of the device is connected with envelope tracheae 9, seals 9 end of tracheae by being welded and connected with envelope air valve
10。
Working principle of the utility model is:
The hole sealing device of this novel raising gas extraction concentration when in use, first gos deep into this device in coal layer 2
In extraction channel, later on inflation envelope pressure gate 12, the punching press into each sealing of hole air bag 3 of ramjet duct 4 makes its expansion, blocks up
Extraction channel is clogged, guarantees its closed environment, after air gauge 11 detects that air pressure reaches closed air at this time, closes inflation envelope
Gate 12 is pressed, envelope air lock door 10 is opened, gas can pass through punching
It presses hole 7 to enter extraction pipeline 5, the gas of collection is imported into collection device by envelope tracheae 9.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (4)
1. a kind of hole sealing device for improving gas extraction concentration, which is characterized in that the sealing of hole dress for improving gas extraction concentration
It sets and is provided with
Gas drainage head；
Gas drainage head is welded on gas drainage crust of the device；Gas drainage crust of the device interior welds have extraction pipeline；Watt
This drainage device shell exterior, which is uniformly glued, multiple sealing of hole air bags；Each equal expanded joint of sealing of hole air bag has a ramjet duct；Two
Side blow pressure pipeline lower end is welded with air gauge；Inflation envelope pressure gate is welded with below air gauge；Gas drainage crust of the device is most lower
Square interference is connected with envelope tracheae, seals tracheae end by being welded and connected with envelope air valve.
2. improving the hole sealing device of gas extraction concentration as described in claim 1, which is characterized in that lead on the gas drainage head
There are multiple gas drainage holes.
3. improving the hole sealing device of gas extraction concentration as described in claim 1, which is characterized in that the ramjet duct is each
Punching hole there are four being respectively provided in sealing of hole air bag.
4. improving the hole sealing device of gas extraction concentration as described in claim 1, which is characterized in that envelope tracheae end and receipts
Acquisition means connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821015997.8U CN208502724U (en) | 2018-06-29 | 2018-06-29 | A kind of hole sealing device improving gas extraction concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821015997.8U CN208502724U (en) | 2018-06-29 | 2018-06-29 | A kind of hole sealing device improving gas extraction concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208502724U true CN208502724U (en) | 2019-02-15 |
Family
ID=65282922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821015997.8U Expired - Fee Related CN208502724U (en) | 2018-06-29 | 2018-06-29 | A kind of hole sealing device improving gas extraction concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208502724U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219204A (en) * | 2020-03-29 | 2020-06-02 | 张海轩 | Gas extraction device and method for improving gas extraction concentration in coal mine roadway |
| CN112112635A (en) * | 2020-10-09 | 2020-12-22 | 吕梁学院 | Coal-bed gas well shaft leakage detection device and operation method thereof |
| CN114183187A (en) * | 2021-12-06 | 2022-03-15 | 中铁十七局集团第三工程有限公司 | Gas treatment equipment for gas tunnel construction |
-
2018
- 2018-06-29 CN CN201821015997.8U patent/CN208502724U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219204A (en) * | 2020-03-29 | 2020-06-02 | 张海轩 | Gas extraction device and method for improving gas extraction concentration in coal mine roadway |
| CN112112635A (en) * | 2020-10-09 | 2020-12-22 | 吕梁学院 | Coal-bed gas well shaft leakage detection device and operation method thereof |
| CN112112635B (en) * | 2020-10-09 | 2022-10-18 | 吕梁学院 | Coal-bed gas well shaft leakage detection device and operation method thereof |
| CN114183187A (en) * | 2021-12-06 | 2022-03-15 | 中铁十七局集团第三工程有限公司 | Gas treatment equipment for gas tunnel construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 Termination date: 20190629 |