CN102261241B - Device and method for measuring signal hole in mine gas extraction system - Google Patents
Device and method for measuring signal hole in mine gas extraction system Download PDFInfo
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- CN102261241B CN102261241B CN2010101888360A CN201010188836A CN102261241B CN 102261241 B CN102261241 B CN 102261241B CN 2010101888360 A CN2010101888360 A CN 2010101888360A CN 201010188836 A CN201010188836 A CN 201010188836A CN 102261241 B CN102261241 B CN 102261241B
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Abstract
The invention discloses a device and method for measuring signal hole in a mine gas extraction system. The mine gas extraction system comprises a data acquisition module for acquiring a gas extraction quantity of a to-be-detected drill hole at a drilling field through a sensor, a control module for controlling opening and closing of the to-be-detected drill hole, a calculation module for acquiring a first gas extraction quantity of the to-be-detected drill hole calculating before closing at the drilling field, acquiring a second gas extraction quantity of the to-be-detected drill hole after closing at the drilling field within preset time interval, and taking a difference value between the first gas extraction quantity and the second gas extraction quantity as the gas extraction quantity of the to-be-detected drill hole. Through measuring the extraction quantity of the single hole before closing and after closing at the drilling field, the extraction quantity of the single hole is calculated; the method is simple and feasible, can effectively achieve the accurate measurement of the single hole and provide an effective and reliable basis for the gas administration effect investigation.
Description
Technical field
The present invention relates to automatic technology, and be particularly related to a kind of apparatus and method of measuring signal hole in mine gas extraction system.
Background technology
At present, in the production operation of mine, gas pumping is a requisite link wherein, and while in down-hole, carrying out gas pumping, each drill site normally carries out the extraction of gas by a plurality of borings.In order accurately to know the situation of drill site mash gas extraction, usually need the extraction situation of each boring of Obtaining Accurate drill site, the extraction situation of boring is presented as its extraction scale usually, equals the product of extraction flow value and extraction concentration value on extraction scale numerical value.
In existing technology, during the extraction scale of the boring in measuring drill site, normally select two representative borings of drill site to carry out measuring signal hole, and the V-arrangement cone flow meter is installed measures in boring to be detected.The flow rates of measuring mist due to the V-arrangement cone flow meter is: 0.5～40m/s, applicable caliber scope is: diameter 100～800mm, the accuracy of the flow value that it can be measured only meets the flow value metering demand of whole drill site, measuring accuracy for one borehole is lower, the mode that available technology adopting is directly carried out measuring signal hole have very large difficulty and measuring accuracy lower.
Summary of the invention
The invention provides a kind of apparatus and method of measuring signal hole in mine gas extraction system, to realize the accurate measurement to one borehole in the mine extraction, for gas control provides foundation effectively reliably.
The invention provides a kind of device of measuring signal hole in mine gas extraction system, comprising:
Data acquisition module, for gather the gas pumping scale of boring to be detected place drill site by sensor;
Control module, be used for controlling the opening and closing of described boring to be detected;
Computing module, be used within the default time interval, and the gas pumping scale of front described drill site is closed in the boring to be detected of obtaining described data collecting module collected, as the first gas pumping scale; Obtain the gas pumping scale of the described drill site after described boring to be detected is closed, as the second gas pumping scale, with the difference of the first gas pumping scale and the second gas pumping scale, as the gas pumping scale of described boring to be detected.
The embodiment of the present invention also provides a kind of method of measuring signal hole in mine gas extraction system, comprising:
Gas pumping scale to boring to be detected place drill site detects, and obtains the first gas pumping scale;
Close the valve of described boring to be detected within the default time interval, and again the gas pumping scale of boring to be detected place drill site is detected, obtain the second gas pumping scale;
With the difference of the first gas pumping scale and the second gas pumping scale, as the gas pumping scale of described boring to be detected.
The apparatus and method of measuring signal hole in mine gas extraction system provided by the invention, by before single hole is closed and the extraction scale of the drill site after closing measure, calculate thus the extraction scale of single hole, the method is simple, can effectively realize the accurate measurement of one borehole, for gas control provides foundation effectively reliably.
Description of drawings
The structural representation of the device of the measuring signal hole in mine gas extraction system that Fig. 1 provides for one embodiment of the invention;
The method flow diagram of the measuring signal hole in mine gas extraction system that Fig. 2 provides for one embodiment of the invention;
Scene schematic diagram when in the drill site that Fig. 3 a provides for one embodiment of the invention, single hole is opened;
Scene schematic diagram when in the drill site that Fig. 3 b provides for one embodiment of the invention, single hole is closed.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making all other embodiment that obtain under the creative work prerequisite, belong to the scope of protection of the invention.
The structural representation of the device of the measuring signal hole in mine gas extraction system that provides for one embodiment of the invention referring to Fig. 1, comprising: data acquisition module 1, control module 2 and computing module 3.
The device detection of the measuring signal hole of the embodiment of the present invention obtains boring to be detected and closes the extraction scale of front drill site, and the extraction scale of the drill site of single hole after closing, the testing result of twice is subtracted each other and obtained single hole extraction scale, and method is simple, and has higher metering effect.
Wherein, the data acquisition module 1 of this device, control module 2 and computing module 3 all can be realized by the form of software, as data acquisition module 1, can be data acquisition software; The software control terminal that control module 2 can be controlled for the electromagnetic valve to single hole; Computing module 3 can be data processing software etc.
The present invention in the process of measuring drill site extraction scale, installs electromagnetic valve in boring, the electromagnetic valve of boring is controlled by relay, shut electromagnetic valve when relay cuts off the power supply, corresponding the closing of holing; Opens solenoid valve when relay power, corresponding the opening of holing; Control module 2 is closed and is opened by what the Control of boring was holed.In the present embodiment, still adopt the V cone flow meter to measure the gas extraction flow value, unlike the prior art be to carry out twice measurement.In addition, also need the high concentration gas sensor to detect the parameters such as gas density, pressure and temperature.Therefore, the sensor of the device of the present embodiment employing comprises four parameter sensors of concentration, pressure, temperature and flow.When sensor carries out underground survey, need to be to the suitable measurement category of sensor setting.
When the extraction scale to drill site was measured, the flow value of 1 pair of drill site extraction of data acquisition module was measured, and the concentration value of drill site extraction is measured; With the gas pumping scale of the product of the concentration value of the flow value of extraction and extraction as drill site.
Need to prove, the gas pumping scale of the drill site before the boring to be detected of this measurement device is closed, and during the gas pumping scale of the drill site of boring to be detected after closing, should measure within the default time,, such as measuring in 3 seconds, be separated by long and cause measure error with the time of avoiding twice measurement.Therefore, the Preset Time interval of the gas pumping scale of above-mentioned measurement drill site can be set to a smaller value.
After obtaining the calculated data in a plurality of time intervals, per hour just can add up to obtain the gas pumping scale with this boring of every day, control the situation of gas pumping for the staff.This device also comprises: statistical module, the extraction scale of the boring to be detected in each time interval that calculates according to computing module 3, statistics obtain this boring to be detected per hour with every day in the extraction scale.
The device of the measuring signal hole in mine gas extraction system that the embodiment of the present invention provides, by before single hole is closed and the extraction scale of the drill site after closing measure, calculate thus the extraction scale of single hole, the method is simple, can effectively realize the accurate measurement of one borehole, for gas control provides foundation effectively reliably.
The method flow diagram of the measuring signal hole in mine gas extraction system that Fig. 2 provides for one embodiment of the invention, executive agent can be the device of above-mentioned measuring signal hole in mine gas extraction system, method comprises:
Step 11, the gas pumping scale of boring to be detected place drill site is detected, obtain the first gas pumping scale.
Before this device work, can, by the data acquisition module 1 of metering system, measure the gas pumping scale of drill site by the various kinds of sensors in drill site.When measuring the gas pumping scale of drill site, adopt following methods: the flow value to this drill site extraction is measured; Concentration value to this drill site extraction is measured; With the product of the concentration value of the flow value of extraction and extraction as the gas pumping scale.
Step 12, close this drill site within the default time interval in the valve of this boring to be detected, and again the gas pumping scale of boring to be detected place drill site is detected, obtain the second gas pumping scale.
In the method for measurement of the present embodiment, need to measure respectively boring to be detected and close the gas pumping scale of front drill site, and the gas pumping scale of the drill site of boring to be detected after closing.The time interval of twice measurement is unsuitable long, to guarantee the accuracy of measuring signal hole.
Step 13, with the difference of the first gas pumping scale and the second gas pumping scale, as the gas pumping scale of this boring to be detected.
Just realized the metering of single hole by said method, below by instantiation, be described in detail:
Select a boring to be detected from 10 borings of certain drill site, install electromagnetic valve, opening and closing by the outstation keyhole, after this boring to be detected is closed, the flow of whole drill site can descend to some extent, the drill site flow that drill site flow with boring to be detected before closing deducts boring to be detected after closing, resulting difference in flow is exactly the flow of boring to be detected.
Be scene schematic diagram when in drill site, single hole is opened referring to Fig. 3 a, 1# to 10# representative boring 1 is to boring 10, to hole, 10 as boring to be detected as example, describes, and 10 the electromagnetic valve of holing this moment is opened, and holes 10 to be in open mode; Fig. 3 b is the scene schematic diagram when in drill site, single hole is closed, 10 the solenoid closure of holing this moment, and boring 10 is in closure state.Referring to Fig. 3 a and Fig. 3 b, in the situation that boring 10 is opened, when drill site carried out extraction, the flow value that four parameter sensors measure the mash gas extraction of drill site was Q1, and gas concentration is C1, can calculate gas pumping scale W1=Q1 * C1; When boring 10 was closed, boring 10 stopped extraction, and it is Q2 that four parameter sensors are measured the flow value that bores long mash gas extraction, and gas concentration is C2, can calculate gas pumping scale W2=Q2 * C2.Hence one can see that, and W1 is the gas pumping scale of 10 borings in drill site, W2 be in drill site except the gas pumping scale of 9 borings of boring 10, so 10 the gas pumping scale of holing is W2-W1.
The apparatus and method of mine extraction measuring signal hole provided by the invention, by before single hole is closed and the extraction scale of the drill site after closing measure, calculate thus the extraction scale of single hole, the method is simple, can effectively realize the accurate measurement of one borehole, for gas control provides foundation effectively reliably.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, and the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
One of ordinary skill in the art will appreciate that: the module in the device in embodiment can be described and be distributed in the device of embodiment according to embodiment, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be completed by the hardware that programmed instruction is correlated with, aforesaid program can be stored in a computer read/write memory medium, this program when carrying out, is carried out the step that comprises said method embodiment; And aforementioned storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that finally: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of embodiment of the present invention technical scheme.
Claims (5)
1. the device of a measuring signal hole in mine gas extraction system, is characterized in that, comprising:
Data acquisition module, for gather the gas pumping scale of boring to be detected place drill site by sensor;
Control module, be used for controlling the opening and closing of described boring to be detected;
Computing module, be used within the default time interval, and the gas pumping scale of front described drill site is closed in the boring to be detected of obtaining described data collecting module collected, as the first gas pumping scale; Obtain the gas pumping scale of the described drill site after described boring to be detected is closed, as the second gas pumping scale, with the difference of the first gas pumping scale and the second gas pumping scale, as the gas pumping scale of described boring to be detected;
Described data acquisition module is measured the flow value of described drill site mash gas extraction; Concentration value to described drill site mash gas extraction is measured; With the gas pumping scale of the product of the concentration value of the flow value of mash gas extraction and mash gas extraction as described drill site.
2. the device of measuring signal hole in mine gas extraction system according to claim 1, is characterized in that, described sensor is four parameter sensors of concentration, pressure, temperature and flow.
3. the device of measuring signal hole in mine gas extraction system according to claim 1, is characterized in that, the electromagnetic valve of boring is controlled by relay, shut electromagnetic valve when described relay outage, opens solenoid valve when described relay power; Described control module is by the closing and opening of the described boring of Control of boring.
4. the device of measuring signal hole in mine gas extraction system according to claim 1, is characterized in that, also comprises:
Statistical module, be used for the gas pumping scale of the described boring to be detected in each time interval that calculates according to described computing module, and statistics per hour obtains the gas pumping scale with every day.
5. the method for a measuring signal hole in mine gas extraction system, is characterized in that, comprising:
Gas pumping scale to boring to be detected place drill site detects, and obtains the first gas pumping scale;
Close the valve of described boring to be detected within the default time interval, and again the gas pumping scale of boring to be detected place drill site is detected, obtain the second gas pumping scale;
With the difference of the first gas pumping scale and the second gas pumping scale, as the gas pumping scale of described boring to be detected;
Described gas pumping scale to boring to be detected place drill site detects, and comprising:
Flow value to described drill site mash gas extraction is measured;
Concentration value to described drill site mash gas extraction is measured;
With the gas pumping scale of the product of the concentration value of the flow value of described mash gas extraction and mash gas extraction as described drill site.
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| CN2010101888360A CN102261241B (en) | 2010-05-25 | 2010-05-25 | Device and method for measuring signal hole in mine gas extraction system |
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| CN2010101888360A CN102261241B (en) | 2010-05-25 | 2010-05-25 | Device and method for measuring signal hole in mine gas extraction system |
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| CN102261241B true CN102261241B (en) | 2013-11-20 |
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| CN107701221B (en) * | 2017-09-30 | 2023-05-30 | 河南理工大学 | High negative pressure pipeline gas extraction metering device and use method thereof |
| CN113217083B (en) * | 2021-05-31 | 2022-09-02 | 重庆工程职业技术学院 | Gas treatment system for gas abnormal area of easily spontaneous combustion coal bed |
| CN113309558A (en) * | 2021-06-11 | 2021-08-27 | 北京掌上通网络技术股份有限公司 | Grouping metering monitoring system and monitoring method for mine gas extraction |
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| SU1696734A1 (en) * | 1989-12-04 | 1991-12-07 | Г.Г.Стекольщиков, С.Ю.Ерохин, Г.М.Зингерман и В.И.Мурашев | Device for mine fire/explosion protection |
| CN201043906Y (en) * | 2007-06-15 | 2008-04-02 | 郑州煤炭工业(集团)有限责任公司 | Bridge type single-hole orifice plate flowmeter |
| CN201209461Y (en) * | 2008-06-12 | 2009-03-18 | 张安民 | Multifunction mash gas pumping and discharging sensor |
| CN201358815Y (en) * | 2008-12-12 | 2009-12-09 | 宁波创盛仪表有限公司 | Gas concentration flowmeter for coal-mine gas drainage |
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2010
- 2010-05-25 CN CN2010101888360A patent/CN102261241B/en active Active
Patent Citations (4)
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| SU1696734A1 (en) * | 1989-12-04 | 1991-12-07 | Г.Г.Стекольщиков, С.Ю.Ерохин, Г.М.Зингерман и В.И.Мурашев | Device for mine fire/explosion protection |
| CN201043906Y (en) * | 2007-06-15 | 2008-04-02 | 郑州煤炭工业(集团)有限责任公司 | Bridge type single-hole orifice plate flowmeter |
| CN201209461Y (en) * | 2008-06-12 | 2009-03-18 | 张安民 | Multifunction mash gas pumping and discharging sensor |
| CN201358815Y (en) * | 2008-12-12 | 2009-12-09 | 宁波创盛仪表有限公司 | Gas concentration flowmeter for coal-mine gas drainage |
Non-Patent Citations (2)
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