CN203161204U - Device for measuring drilling gas discharge speed in simulated drilling process - Google Patents
Device for measuring drilling gas discharge speed in simulated drilling process Download PDFInfo
- Publication number
- CN203161204U CN203161204U CN 201320067700 CN201320067700U CN203161204U CN 203161204 U CN203161204 U CN 203161204U CN 201320067700 CN201320067700 CN 201320067700 CN 201320067700 U CN201320067700 U CN 201320067700U CN 203161204 U CN203161204 U CN 203161204U
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- Prior art keywords
- coal seam
- main frame
- rock drill
- coal
- electric rock
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Abstract
The utility model relates to a device for measuring the drilling gas discharge speed in a simulated drilling process. The device comprises a fixed barrel communicated with a coal seam simulator and an electric rock drill. A top cap is arranged at the other end of the fixed barrel, and a through hole is reserved at the center of the top cap. The electric rock drill is connected with one end of a push rod, the other end of the push rod is connected with the tail of a drill rod, the head of the drill rod extends into the fixed barrel through the through hole at the center of the top cap so as to drill a simulated coal seam, a sliding bearing is inlaid inside the top cap, a connecting tube is arranged on one side of the fixed barrel, one end of the connecting tube is communicated with the coal seam simulator, the other end of the connecting tube is connected with a host computer, a coal dust filter is arranged in the middle of the connecting tube, measuring instruments are installed in the host computer, and coal dust is discharged from the coal seam simulator and then enters the host to be measured by the measuring instruments. The speed of drilling gas discharge in the simulated drilling process is measured successfully, and change rules of coal seam outburst risk level can be obtained by follow-up studies on the changing trend of the speed, and are important new indexes for measuring the coal seam outburst risk level.
Description
Technical field
The utility model relates to simulation coal bed drilling experimental technique field, specifically, relates to a kind of simulation drilling process boring gas speed measuring device of gushing out.
Background technology
The boring gas of the existing coal road outburst prediction initial velocity method of gushing out is considered to reflect the variation of permeance property, mechanical property, coal-bed gas pressure and the factors such as content and geostatic stress of coal comprehensively, has obtained extensive use at colliery scene.But, this method is based on the static prediction method of drilling, because the restriction on assay method and the understanding, forefathers often will appear at the initial time data loss that can reflect the coal body outburst hazard of preceding 10 s, thereby cause the outstanding accident of low index frequently to take place.The spherical shell instability Mechanism that coal and gas are given prominence to thinks outstanding and coal body is destroyed the how much closely related of initial time gas emission afterwards by geostatic stress.At present, the dynamic prediction method has become the development trend of coal road outburst prediction research.For deeply inquiring into the boring gas rule of dynamically gushing out, need a kind of simulation drilling process boring of design gas speed measuring device of gushing out.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, adapts to reality needs, and a kind of simulation drilling process gas speed measuring device of gushing out of holing is provided.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
A kind of simulation drilling process boring gas speed measuring device of gushing out, comprise the stationary magazine creel that is communicated with the coal seam analogue means, the other end of described stationary magazine creel is provided with top cover, described top cover central authorities are provided with through hole, also comprise electric rock drill, described electric rock drill is connected with an end of push rod, the other end of push rod is connected with the drilling rod afterbody, the through hole of drilling rod head by top cover central authorities stretches in the stationary magazine creel simulation coal seam crept into, sliding bearing is inlayed in top cover inside, stationary magazine creel one side is provided with tube connector, tube connector one end is communicated with the coal seam analogue means, and the other end is connected with main frame, and the coal dust strainer is established at the tube connector middle part, in the described main frame determining instrument is housed, coal dust is gushed out laggardly to go into main frame and measured by determining instrument from the coal seam analogue means.
Be provided with gas flow sensor, pressure sensor, electromagnetic valve in the described main frame, described gas flow sensor, pressure sensor all are connected with the data acquisition unit of main frame, are used for data acquisition.
Described electric rock drill below has bracing frame to support, and bracing frame is provided with guide rail, and electric rock drill is mobile at guide rail, and described electric rock drill tail end also has the displacement transducer that is connected with main frame.
The beneficial effects of the utility model are:
Successful mensuration the simulation drilling process boring gas speed of gushing out, by its variation tendency of follow-up research, can get the Changing Pattern of coal output layer outburst dangerous level, be the important New Set of weighing the coal seam outburst dangerous level;
2. device of the present utility model is reasonable in design, can save cost to greatest extent, shortens experimental period, can obtain definite scientific conclusion rapidly again simultaneously, and experimental result has authenticity, objectivity.
Description of drawings
Fig. 1 is structure principle chart of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified:
Embodiment: referring to Fig. 1.
A kind of simulation drilling process boring gas speed measuring device of gushing out, comprise the stationary magazine creel 1 that is communicated with coal seam analogue means 11, the other end of described stationary magazine creel 1 is provided with top cover 2, described top cover 2 central authorities are provided with through hole, also comprise electric rock drill 4, described electric rock drill 4 is connected with an end of push rod 3, (drilling rod is positioned at stationary magazine creel for the other end of push rod 3 and drilling rod, not shown) afterbody connects, and the through hole of drilling rod head by top cover 2 central authorities stretches in the stationary magazine creel 1 the simulation coal seam crept into, and sliding bearing is inlayed in top cover 2 inside, guarantee that push rod moves freely in stationary magazine creel, and preventing that drilling rod from swinging, top cover inside is provided with seal groove, effectively confining gas.Stationary magazine creel 1 one sides are provided with tube connector 10, tube connector 10 1 ends are communicated with the coal seam analogue means, the other end is connected with main frame 7, coal dust strainer 6 is established at tube connector 10 middle parts, the dusty gas that filtration is drilled and gushed out in the process, in case dusty gas inflow device main frame damages gas flow sensor, in the described main frame 7 determining instrument is housed, coal dust is gushed out laggardly to go into main frame 7 and measured by determining instrument from the coal seam analogue means.
Be provided with gas flow sensor, pressure sensor, electromagnetic valve in the described main frame, described gas flow sensor, pressure sensor all are connected with the data acquisition unit 8 of main frame 7, are used for data acquisition.Described main frame 7 is divided into flame proof and two cavitys of intrinsic safety, the gas flow sensor of two kinds of different ranges is housed in the intrinsic safety chamber, electromagnetic valve, data acquisition circuit plate and relevant spare part are housed in explosion-proof chamber, after the coal dust that has a methane gas is gushed out from coal seam analogue means 11, be introduced into the pipeline of explosion-proof chamber by tube connector 10, enter the intrinsic safety chamber again after passing electromagnetic valve.Gas flow in boring hour, closed electromagnetic valve, gas only pass through from a small amount of journey gas flow sensor; When the gas flow in the boring increased, electromagnetic valve started, and gas passes through from wide range and a small amount of journey gas flow sensor respectively, and data acquisition unit 8 is used for data acquisition, gathers the back and is handled by main frame.
Described electric rock drill 4 belows have bracing frame 9 to support, and bracing frame 9 is provided with guide rail, and electric rock drill 4 is mobile at guide rail, and described electric rock drill 4 tail ends also have the displacement transducer 5 that is connected with the data acquisition unit 8 of main frame 7.Drive the backguy on the displacement transducer 5 during electric rock drill 4 motions, determine each position of drill bit constantly immediately, the data acquisition unit 8 that moves through of displacement transducer 5 carries out data acquisition.
What embodiment of the present utility model announced is preferred embodiment; but be not limited thereto; those of ordinary skill in the art; very easily according to above-described embodiment; understand spirit of the present utility model; and make different amplifications and variation, but only otherwise break away from spirit of the present utility model, all in protection domain of the present utility model.
Claims (3)
1. simulation drilling process boring gas speed measuring device of gushing out, it is characterized in that: comprise the stationary magazine creel that is communicated with the coal seam analogue means, the other end of described stationary magazine creel is provided with top cover, described top cover central authorities are provided with through hole, also comprise electric rock drill, described electric rock drill is connected with an end of push rod, the other end of push rod is connected with the drilling rod afterbody, the through hole of drilling rod head by top cover central authorities stretches in the stationary magazine creel simulation coal seam crept into, sliding bearing is inlayed in top cover inside, stationary magazine creel one side is provided with tube connector, tube connector one end is communicated with the coal seam analogue means, and the other end is connected with main frame, and the coal dust strainer is established at the tube connector middle part, in the described main frame determining instrument is housed, coal dust is gushed out laggardly to go into main frame and measured by determining instrument from the coal seam analogue means.
2. determinator according to claim 1, it is characterized in that: be provided with gas flow sensor, pressure sensor, electromagnetic valve in the described main frame, described gas flow sensor, pressure sensor all are connected with the data acquisition unit of main frame, are used for data acquisition.
3. according to claim 1 or the described determinator of claim 2, it is characterized in that: described electric rock drill below has bracing frame to support, bracing frame is provided with guide rail, and electric rock drill is mobile at guide rail, and described electric rock drill tail end also has the displacement transducer that is connected with main frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320067700 CN203161204U (en) | 2013-02-06 | 2013-02-06 | Device for measuring drilling gas discharge speed in simulated drilling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320067700 CN203161204U (en) | 2013-02-06 | 2013-02-06 | Device for measuring drilling gas discharge speed in simulated drilling process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161204U true CN203161204U (en) | 2013-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320067700 Expired - Fee Related CN203161204U (en) | 2013-02-06 | 2013-02-06 | Device for measuring drilling gas discharge speed in simulated drilling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161204U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674539A (en) * | 2013-12-24 | 2014-03-26 | 重庆大学 | Simulated drilling and testing device for rock and use method thereof |
| CN104265368A (en) * | 2014-07-31 | 2015-01-07 | 中国矿业大学 | Flow method for predicting coal roadway outburst through increased-resistance guide continuous drilling and device thereof |
| CN105735967A (en) * | 2016-04-12 | 2016-07-06 | 中国矿业大学 | Method for measuring initial emission velocity of gas from drill hole |
| CN105781616A (en) * | 2016-05-13 | 2016-07-20 | 河南理工大学 | Drilled hole dynamic instability monitoring system and method in coal seam drilling simulating process |
| CN110850054A (en) * | 2019-12-04 | 2020-02-28 | 河南工程学院 | Coal and gas outburst simulation device |
| CN113533126A (en) * | 2021-07-19 | 2021-10-22 | 中国矿业大学 | Coal mine underground one-stop type gas content measuring device and measuring method |
-
2013
- 2013-02-06 CN CN 201320067700 patent/CN203161204U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674539A (en) * | 2013-12-24 | 2014-03-26 | 重庆大学 | Simulated drilling and testing device for rock and use method thereof |
| CN103674539B (en) * | 2013-12-24 | 2016-03-09 | 重庆大学 | A kind of rock analogic drilling and proving installation and using method |
| CN104265368A (en) * | 2014-07-31 | 2015-01-07 | 中国矿业大学 | Flow method for predicting coal roadway outburst through increased-resistance guide continuous drilling and device thereof |
| CN105735967A (en) * | 2016-04-12 | 2016-07-06 | 中国矿业大学 | Method for measuring initial emission velocity of gas from drill hole |
| CN105735967B (en) * | 2016-04-12 | 2018-09-21 | 中国矿业大学 | Method for measuring initial velocity of gas emission in drill hole |
| CN105781616A (en) * | 2016-05-13 | 2016-07-20 | 河南理工大学 | Drilled hole dynamic instability monitoring system and method in coal seam drilling simulating process |
| CN105781616B (en) * | 2016-05-13 | 2018-08-28 | 河南理工大学 | Drilling dynamic buckling monitors system and method during simulating drilling in coal |
| CN110850054A (en) * | 2019-12-04 | 2020-02-28 | 河南工程学院 | Coal and gas outburst simulation device |
| CN113533126A (en) * | 2021-07-19 | 2021-10-22 | 中国矿业大学 | Coal mine underground one-stop type gas content measuring device and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20150206 |
|
| EXPY | Termination of patent right or utility model |