CN203745454U - Automatic testing device for content of coal seam gas - Google Patents
Automatic testing device for content of coal seam gas Download PDFInfo
- Publication number
- CN203745454U CN203745454U CN201420019743.9U CN201420019743U CN203745454U CN 203745454 U CN203745454 U CN 203745454U CN 201420019743 U CN201420019743 U CN 201420019743U CN 203745454 U CN203745454 U CN 203745454U
- Authority
- CN
- China
- Prior art keywords
- gas
- pipe
- collection tube
- coal seam
- bearing capacity
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses an automatic testing device for the content of coal seam gas. The automatic testing device comprises a gas collecting pipe, wherein the gas collecting pipe is provided with a top opening and a bottom opening; the top opening of the gas collecting pipe is provided with a laser distance measuring instrument used for measuring the height of liquid inside the gas collecting pipe; the top of the gas collecting pipe is connected with a gas discharge device capable of discharging gas inside the gas collecting pipe through a first pipe, and the top of the gas collecting pipe is connected with a coal sample pot through a second pipe; the first pipe and the second pipe are respectively provided with pipe switches. The automatic testing device for the content of the coal seam gas substitutes the laser induction and computed processing function of a central processing unit for manual data reading and computation.
Description
Technical field
The utility model relates to a kind of coal seam gas-bearing capacity automatic testing equipment.
Background technology
Coal seam gas-bearing capacity is as one of important coal-bed gas parameter, and character (low gaseous mine, gassy mine, projecting mine), Forecast of Gas Emission and gas control etc. to mine have important guiding effect.The accuracy of coal seam gas-bearing capacity test has been directly connected to the safety in production of mine.
Coal seam gas-bearing capacity method of testing is roughly divided into direct method and indirect method.Indirect method is mainly according to the absorption constant of the down-hole coal bed pressure of on-site measurement and experimental determination coal and carry out the basic parameters such as technical analysis, calculate the method that draws final gas bearing capacity with Lang Gemiaoer (Langmuir) materialization adsoption equation, shortcoming is the original gas pressure measurement complex process in coal seam, operation is more, and any step is made mistakes and all can be caused result to lose efficacy, secondly indirect method also has determination period long, quantities is large, the shortcomings such as cost of determination height, in addition, indirect Determination generally needs 20 ~ 50 days, can not instruct timely coal production, also need a large amount of laboratory works, most of collieries do not possess technician and equipment preferentially, this a series of condition restriction indirect method universal.Direct method is divided into: the direct measuring method of the direct mensuration of geologic prospecting coal seam gas-bearing capacity in period and the down-hole coal bed gas bearing capacity of production thing.Geologic prospecting coal seam gas-bearing capacity in period is directly measured the mensuration of general geologic prospect period before pit mining to coal seam gas-bearing capacity, basis and the foundation of [underground, construction and production, but be difficult for grasping owing to getting the core time, cause the result of gas bearing capacity and actually differ more.
At present, the most frequently used coal seam gas-bearing capacity assay method is down-hole direct method, its method of testing is directly to take unexposed coal sample in down-hole, carry out at the scene desorb, the desorption data of record unit time, analyze adsorption law by research site desorption data, utilize this rule to calculate coal seam loss gas bearing capacity, then in laboratory, coal sample is pulverized to the residual gas amount of measuring coal sample, finally resolve the weight calculating coal seam gas-bearing capacity of loss gas amount, residual gas amount and the coal sample of gas amount, calculating according to the down-hole of coal sample.The method is relatively simple, expense is low, degree of accuracy advantages of higher, but owing to need to carrying out at the scene a large amount of loaded down with trivial details meticulous reading and records, tends to cause because personnel are tired human error.
In recent years, coal science research and each institution of higher learning of China research and develop several gas bearing capacity determinators in succession, mainly that Chongqing Branch, Coal Science Research General Inst is developed the direct determinator of DGC type gas bearing capacity and Fushun branch has has also researched and developed the down-hole coal bed rapid measurement device for gas content of WP-1 type, although these devices can improve all method of testings to coal seam gas-bearing capacity, all have some problems.Therefore, need to study a kind of coal seam gas-bearing capacity intelligence determinator, mensuration coal seam gas-bearing capacity that can be direct, accurate, intelligent.
Utility model content
The purpose of this utility model is to provide a kind ofly utilizes laser induced and central processing unit computing function to replace manual read to fetch data and the coal seam gas-bearing capacity intelligent test device of computational data.
For achieving the above object, the utility model adopts following technical scheme: coal seam gas-bearing capacity automatic testing equipment, comprise the gas collection tube that top mouth and end mouth are set, the mouth place, top of gas collection tube is provided with the laser range finder for measuring liquid height in gas collection tube, gas collection tube top connects the gas exhausting device that gas in gas collection tube can be discharged by the first pipe, gas collection tube top connects coal sample tank by the second pipe, on the first pipe and the second pipe, is provided with respectively pipe switch.
Described laser range finder is connected by data line signal with man-machine interactive system.
Described man-machine interactive system is made up of the display connecting successively by circuit, central processing unit, keyboard.
The end part seal of described laser range finder is plugged in the top mouth of gas collection tube.
In gas collection tube, corresponding laser range finder is provided with light barrier that can be floating on liquid level.
Described gas exhausting device is the air-breathing ball of elasticity.
Described pipe switch is clip.
Described the second pipe connects described coal sample tank by piercing needle.
The bottom of described gas collection tube is the U-shaped end that is contraction-like, and mouth of the described end is located at the bottom of gas collection tube, and the end mouth of gas collection tube is connected with water pipe.
Described the first pipe, the second pipe are located at respectively the both sides of gas collection tube.
Coal seam gas-bearing capacity automatic testing equipment described in the utility model, the water pipe of gas collection tube is put into water source, coordinating gas exhausting device---the air-breathing ball of elasticity is in discharging the portion gas in gas collection tube, water is sucked in gas collection tube, in addition, gas collection tube also for desorb gas, collect from the gas of coal sample tank coal sample solution sucking-off, laser range finder can excite the different laser of two bundles simultaneously, by measuring the phase place of different light beams, thereby obtain accurately the height that liquid level declines, i.e. desorb gas volume; Described man-machine interactive system is measured according to the time of setting by controlling laser range finder, and calculates and demonstration coal seam gas-bearing capacity.The utility model is a kind of equipment for coal mine gas content measuring, have compared with existing apparatus test job amount little, measure reliability and the advantage such as accuracy is high, test is intelligent.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Coal seam gas-bearing capacity automatic testing equipment as shown in Figure 1, comprise the gas collection tube 1 that top mouth 15 and end mouth 17 are set, gas collection tube 1 diameter 50mm, be highly 500mm, top mouth 15 places of gas collection tube 1 are provided with the laser range finder 5 for measuring liquid height in gas collection tube, the end part seal of laser range finder 5 is plugged in the top mouth 15 of gas collection tube 1, the end that is laser range finder 5 is plugged in the top mouth 15 of gas collection tube 1, and is provided with O-ring seal 11 between top mouth 15 walls of the outer ring, end of laser range finder 5 and gas collection tube 1.The interior corresponding laser range finder 5 of gas collection tube 1 is provided with light barrier 7 that can be floating on liquid level, and light barrier is that radius is 23mm, density 0.8g/cm
3plastic tab, light barrier 7 is set can increase the refraction effect of laser, described laser range finder 5 is connected by data line 10 signals with man-machine interactive system 12, described man-machine interactive system 12 comprises display 13, central processing unit and the keyboard 14 that circuit connects successively, and central processing unit is single-chip microcomputer (central processing unit is not shown).
Laser range finder 5 adopts two poor phase methods of chi of surveying, in laser range finder 5, establish energizer, receiver, phase detector, the phasometer of two train waves that the ripple of the two row different wave lengths that phase detector excites by measurement energizer and receiver receive calculates the liquid level falling head in gas collection tube 1, by measuring the phase differential of different light beams, thereby obtain accurately the height that the interior liquid level of gas collection tube 1 declines, then draw desorb gas volume, after the laser of different wave length sends, reflex to receiver by light barrier 7.Man-machine interactive system 12 can be measured according to the time of setting by controlling laser range finder 5, and calculate and demonstration coal seam gas-bearing capacity, wherein, keyboard 14 has the function such as selection that measurement parameter, input gas calculating parameter, save data and measurement pattern are set, display 13 is for the result of display measurement data and calculating, and single-chip microcomputer is mainly used in controlling the result that excites and calculate feedback of laser range finder 5.
Gas collection tube 1 top connects by the first pipe 6 gas exhausting device that interior gas collection tube 1 gas can be discharged, and gas exhausting device is the air-breathing ball 9 of elasticity, and the air-breathing ball 9 of elasticity is rubber sphere.Gas collection tube 1 top connects coal sample tank 3 by the second pipe 16, and the second pipe 16 connects described coal sample tank 3 by piercing needle 4.Described the first pipe 6, the second pipe 16 are located at respectively the left and right sides of gas collection tube 1, and be provided with respectively pipe switch on the first pipe 6 and the second pipe 16, pipe switch is for controlling opening and closure of place the first pipe 6 or the second pipe 16, pipe switch is clip, and clip is screw clamp 8, certainly, the utility model is not limited to above-mentioned form, and clip also can be spring clamp.
The bottom of described gas collection tube 1 is the U-shaped end that is contraction-like, and mouth of the described end 17 is located at the bottom of gas collection tube 1, and the end mouth 17 of gas collection tube 1 is connected with water pipe 2.
Coal seam gas-bearing capacity automatic testing equipment described in the utility model, concrete use procedure is as follows:
(1) first the water pipe 2 of gas collection tube 1 bottom is put in water, close the screw clamp 8 on the second pipe 16, open the screw clamp 8 on the first pipe 6, make the air pressure in gas collection tube 1 be less than atmospheric pressure by the air-breathing ball 9 of dynamic elasticity, under the atmospheric effect in outside, the water of bottom enters in gas collection tube 1 by water pipe 2 and end mouth 17, buoyancy of water floats light barrier 7, in the time that liquid level rises to apart from laser range finder 55 ~ 10cm, close the screw clamp 8 on screw clamp 8 and the second pipe 16 on the first pipe 6.
(2) with data line 10, laser range finder 5 and man-machine interactive system 12 are connected.
(3) open the power switch in man-machine interactive system 12, open laser range finder 5, use single measurement, manual unlocking single measurement again after 10 min, contrast twice measurement result unchanged, gas collection tube 1 sealing is better, can carry out next step mensuration.
(4) take to pack into fast in coal sample tank 3 after coal sample, and record coal sample to packing the required time t of coal sample tank 3 into
0, open the screw clamp 8 on the second pipe 16, make coal sample gas enter gas collection tube 1.
(5) open measurement pattern, man-machine interactive system 12 is carried out the gas volume in interval measurement desorption instrument by automatically controlling laser range finder 5 according to the minute of input.
(6) after measurement finishes, close laser range finder 5 in order to reduce unnecessary electric quantity loss.
(7) input sample time t
0, and the group number of definite measurement data, starts to carry out data processing afterwards, result of calculation is desorb gas loss amount by demonstrate final result on display 13.
(8) go out after well, after device is connected with printer and printer power supply, under selection mode, select the desired measurement group # printing, can print determination data and the final measurement result of this group.
Claims (10)
1. coal seam gas-bearing capacity automatic testing equipment, it is characterized in that: comprise the gas collection tube that top mouth and end mouth are set, the mouth place, top of gas collection tube is provided with the laser range finder for measuring liquid height in gas collection tube, gas collection tube top connects the gas exhausting device that gas in gas collection tube can be discharged by the first pipe, gas collection tube top connects coal sample tank by the second pipe, on the first pipe and the second pipe, is provided with respectively pipe switch.
2. coal seam gas-bearing capacity automatic testing equipment as claimed in claim 1, is characterized in that: described laser range finder is connected by data line signal with man-machine interactive system.
3. coal seam gas-bearing capacity automatic testing equipment as claimed in claim 2, is characterized in that: described man-machine interactive system is made up of the display connecting successively by circuit, central processing unit, keyboard.
4. coal seam gas-bearing capacity automatic testing equipment as claimed in claim 2, is characterized in that: the end part seal of described laser range finder is plugged in the top mouth of gas collection tube.
5. coal seam gas-bearing capacity automatic testing equipment as claimed in claim 1, is characterized in that: in gas collection tube, corresponding laser range finder is provided with light barrier that can be floating on liquid level.
6. coal seam gas-bearing capacity automatic testing equipment as claimed in claim 1, is characterized in that: described gas exhausting device is the air-breathing ball of elasticity.
7. coal seam gas-bearing capacity automatic testing equipment as claimed in claim 1, is characterized in that: described pipe switch is clip.
8. coal seam gas-bearing capacity automatic testing equipment as claimed in claim 1, is characterized in that: described the second pipe connects described coal sample tank by piercing needle.
9. coal seam gas-bearing capacity automatic testing equipment as claimed in claim 1, is characterized in that: the bottom of described gas collection tube is the U-shaped end that is contraction-like, and mouth of the described end is located at the bottom of gas collection tube, and the end mouth of gas collection tube is connected with water pipe.
10. coal seam gas-bearing capacity automatic testing equipment as claimed in claim 1, is characterized in that: described the first pipe, the second pipe are located at respectively the both sides of gas collection tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019743.9U CN203745454U (en) | 2014-01-13 | 2014-01-13 | Automatic testing device for content of coal seam gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019743.9U CN203745454U (en) | 2014-01-13 | 2014-01-13 | Automatic testing device for content of coal seam gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745454U true CN203745454U (en) | 2014-07-30 |
Family
ID=51345239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420019743.9U Expired - Fee Related CN203745454U (en) | 2014-01-13 | 2014-01-13 | Automatic testing device for content of coal seam gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745454U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974085A (en) * | 2016-07-14 | 2016-09-28 | 河南省煤炭科学研究院有限公司 | Portable and intelligent rapid gas content tester |
| CN107727528A (en) * | 2017-09-30 | 2018-02-23 | 河南理工大学 | The desorption of mash gas speed detecting method and device of a kind of no accumulated error |
| CN107727531A (en) * | 2017-11-02 | 2018-02-23 | 河南理工大学 | Coal seam gas-bearing capacity laboratory desorption quantity calibrates reading plotter and its application method automatically |
| CN108625900A (en) * | 2018-07-11 | 2018-10-09 | 贵州安和矿业科技工程股份有限公司 | A kind of fire damp solves analyzer and application method automatically |
-
2014
- 2014-01-13 CN CN201420019743.9U patent/CN203745454U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974085A (en) * | 2016-07-14 | 2016-09-28 | 河南省煤炭科学研究院有限公司 | Portable and intelligent rapid gas content tester |
| CN107727528A (en) * | 2017-09-30 | 2018-02-23 | 河南理工大学 | The desorption of mash gas speed detecting method and device of a kind of no accumulated error |
| CN107727531A (en) * | 2017-11-02 | 2018-02-23 | 河南理工大学 | Coal seam gas-bearing capacity laboratory desorption quantity calibrates reading plotter and its application method automatically |
| CN108625900A (en) * | 2018-07-11 | 2018-10-09 | 贵州安和矿业科技工程股份有限公司 | A kind of fire damp solves analyzer and application method automatically |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203745454U (en) | Automatic testing device for content of coal seam gas | |
| CN105588782B (en) | High/low temperature High Pressure Absorption test device for desorption and method | |
| CN203881678U (en) | Portable SF6 detection device underground coal mine | |
| CN103674156B (en) | A kind of metering method utilizing laboratory micro gas-metering device | |
| CN103233704A (en) | Method and device for simulating experiment of permafrost region natural gas hydrate mining through replacement of CO2/N2 | |
| CN105223099B (en) | Shale gas gassiness tester and its test method | |
| CN201857960U (en) | Device for directly measuring content of gas | |
| CN202837134U (en) | Gas content testing device of shale gas and coal bed methane | |
| CN203224388U (en) | Static box for measuring animal waste greenhouse gas emission rate | |
| CN106680451A (en) | Underground rapid measurement method for coal and gas outburst parameter as well as apparatus thereof | |
| CN103968895B (en) | A kind of underground coal mine air quantity analyser and analytical approach | |
| CN205333462U (en) | A servo measurement testing system for testing coal sample gas absorption desorption rule | |
| CN205449727U (en) | High low temperature high pressure adsorbs desorption test device | |
| CN104614753B (en) | A kind of method and apparatus of continuous measurement radon eduction rate on medium furface | |
| CN106919129A (en) | A kind of hanger rail type movable monitoring early-warning system based on Urban Underground pipe gallery | |
| CN105510205A (en) | Collection device of migration parameters of radon in coal-rock mass porous media | |
| CN103913553A (en) | Sailing measurement device for seawater dissolved inorganic carbon (DIC) | |
| CN203117009U (en) | Automatic sampling device for underground gas of coal mine | |
| CN204882293U (en) | Measure device of gas production volume | |
| CN201763313U (en) | Calibrating device for pulsed neutron logging tool | |
| CN205138931U (en) | Shale gas gassiness volume tester | |
| CN205619988U (en) | Gaseous ration meter of gassiness volume desorption | |
| CN110685678A (en) | Method and device for rapidly evaluating shale gas well productivity | |
| CN205940855U (en) | Desulfurizing slurry density measurement system's pressure measuring equipment in power plant's desulfurization prewashing tower | |
| CN105424423A (en) | Greenhouse gas emission flux acquisition device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20170113 |