CN201810350U - Coal mine single-hole gas measuring device - Google Patents
Coal mine single-hole gas measuring device Download PDFInfo
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- CN201810350U CN201810350U CN2010205714857U CN201020571485U CN201810350U CN 201810350 U CN201810350 U CN 201810350U CN 2010205714857 U CN2010205714857 U CN 2010205714857U CN 201020571485 U CN201020571485 U CN 201020571485U CN 201810350 U CN201810350 U CN 201810350U
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- flow meter
- module
- flow
- methane transducer
- methane
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Abstract
The utility model provides a coal mine single-hole gas measuring device, comprising a flow meter module and a methane sensor module, wherein the flow meter module is communicated with the methane sensor module by a pipeline. The flow meter module is a precession vortex type flow meter. The methane sensor module comprises a gas guide pipe and a methane sensor; one end of the gas guide pipe is communicated with the flow meter module by the pipeline, and the other end is communicated with the methane sensor. By arranging the flow meter module and the methane sensor module, the coal mine single-hole gas measuring device can directly measure and obtain various parameters of flow and concentration and the like of single-hole gas, solves the problems that in the prior art, the measuring data in single-hole monitoring is not accurate and small flow can not be detected, and realizes sensitive and accurate measurement.
Description
Technical field
The utility model relates to the mine monitoring technology, particularly a kind of colliery single hole gas surveying device.
Background technology
In the process of coal mining, comprising the operation of stone door punching coal.The operation of this stone door punching coal refers to, and the storage of coal is layering under coal mine, is not to be continuous coal seam all.May be about the lithosphere that 1-10 rice does not wait by spacer thickness between adjacent two coal seams.Crossdrift is a kind of tunnel under the coal mine, and which floor coal seam is crossdrift will pass, and whenever passes one deck coal seam and just is exposed coal.Because extraction is original gas during the stone door punching coal, with respect to the gas pressure relief in the coal seam of having exploited, little many of single hole gas flow during the single hole flow-rate ratio release extraction of original gas pumping.Because stone door punching coal is dangerous work, take place easily that gas is outstanding, blast etc., the single hole flow when needing the monitoring extraction is with monitoring extraction safety.
Prior art normally adopts " subtraction " single hole gas flow when mode is measured extraction, concrete, usually adopt the V cone flow meter to measure the flow of main pipe rail, adopt the closure of solenoid control single hole, do " subtraction " then and try to achieve main pipe rail and promptly obtain the single hole flow in the difference in flow of closing before and after the single hole.
But above-mentioned " subtraction " mode is measured the single hole flow and is had following technological deficiency: because the variation of the survey data of the V cone flow meter in the pipeline may be caused by multiple factor; Even do not do " subtraction ", the survey data of V cone flow meter also has difference and occurs; So measured flow difference actual flow of single hole not necessarily when closing single hole; Survey data is inaccurate.And this subtraction mode reacts insensitive, and the flow of single hole hour measurement is difficult more, because the single hole flow is less, therefore, utilization is done subtraction and do not reflected single hole changes in flow rate situation in the above-mentioned stone door punching coal.
The utility model content
The purpose of this utility model provides a kind of colliery single hole gas surveying device, and is inaccurate with the survey data that solves in the existing single hole monitoring, and the problem that can not detect low discharge, realizes measuring sensitive and accurate.
A kind of colliery single hole gas surveying device, described measurement mechanism comprise flow meter module 11 and methane transducer module 12, and described flow meter module 11 is connected with methane transducer module 12 by pipeline; One end of flow meter module 11 is provided with flow measurement mouth 13, and the other end is provided with connector 14; The connecting union 15 of methane transducer module 12 1 ends of connector 14, the other end of methane transducer module 12 are provided with methane and measure mouthfuls 16.
Described flow measurement mouth 13 can be respectively applied for methane measurement mouth 16 and be connected single-duct conduit.
Described flow meter module is a precession Scroll-tupe flow meter.
Described methane transducer module 12 comprises wireway 22 and methane transducer 21, and wherein, an end of wireway 22 and flow meter module 11 are by pipeline connection, and the other end is communicated with methane transducer 21.One side outside of described wireway 22 is provided with manual measurement hole 24; The aperture in described manual measurement hole 24 is equipped with nut.
Colliery of the present utility model single hole examination device, by flow meter module and methane transducer module are set, can directly measure parameters such as the flow of single hole and concentration, the survey data that has solved during existing single hole is monitored in the prior art is inaccurate, and the problem that can not detect low discharge, realize measuring sensitive and accurate.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of methane transducer module.
The specific embodiment
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, will to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below and introduce simply.Apparently, the embodiment in describing below for those of ordinary skills, can also obtain other embodiments according to these.
Fig. 1 is the structural representation of the utility model colliery single hole gas surveying device, and as shown in Figure 1, the single hole of present embodiment examination device can comprise flow meter module 11 and methane transducer module 12;
Concrete, this flow meter module 11 and methane transducer module 12 can be connected by pipeline.For example, flow meter module 11 comprises flow measurement mouth 13 and connector 14; Methane transducer module 12 comprises union 15 and methane measurement mouth 16.Connector 14 and union 15 join, and flow measurement mouth 13 and methane are measured mouthfuls 16 and can be respectively applied for and be connected single-duct conduit, like this can be so that the gas of single hole can be flowed through flow meter module 11 and methane transducer module 12.
By independent flow meter directly is installed at the single hole place, can directly record the single hole flow, and avoid the subtraction formula to measure the error of being brought, improved certainty of measurement greatly.And, because this flow meter module is directly carried out flow measurement at the single hole place, therefore, improved the measurement sensitivity, even less flow also can record.For example, the flow meter module of the present embodiment MDA flow that can record is 0.03m3/min.
Further, the flow meter module in the present embodiment can be precession Scroll-tupe flow meter, for example can be CX type precession vortex flowmeter.This precession vortex flowmeter can comprise whirlpool device, housing, flow meter integrating instrument, piezo-electric crystal sensing head, Temperature probe, pressure sensing head and the whirlpool device that disappears.This precession vortex flowmeter is easy for installation, its restriction to ambient conditions is few, can detect temperature, pressure and the flow value of gas automatically, exactly, and directly show and upload (Pb=101.325kPa, gas volume cumulant Tb=293.15K) under the standard state.This whirlpool advances temperature, pressure and the flow etc. that the Scroll-tupe flow meter can record single hole.By using precession Scroll-tupe flow meter, not only improve the accuracy of measurement of data, and can record the multiple parameters of single hole simultaneously, the security monitoring ability improves.
Further, the structure of the methane transducer module in the present embodiment can be referring to Fig. 2, and Fig. 2 is the structural representation of the methane transducer module among Fig. 1.This methane transducer module comprises wireway 22 and methane transducer 21, and wherein, 22 1 ends of wireway and flow meter module 11 are by pipeline connection, and the other end is communicated with methane transducer 21.The setting of this wireway can be so that the gas at single-duct conduit place enters methane transducer smoothly.
Concrete, the two ends of this wireway 22 can connect two second pipelines 23 respectively, and wireway 22 middle parts one side is communicated with methane transducer 21.This wireway 22 can be the steel pipe of DN100, is the steel pipe of 4 o'clock calibers, and its length can be 200mm; Second pipeline 23 can be the steel pipe of DN50, is the steel pipe of 2 o'clock calibers, and the length of each can be 150mm.(thick being convenient to can not touch tube wall after inserting high dense methane transducer)
Further, can be provided with manual measurement hole 24 on the side outer pipe wall of wireway 22, the aperture in described manual measurement hole 24 is equipped with sealing nut 25.Can calibrate methane transducer 21 by the measured hole on this wireway.For example, can extract part gas, and described gas detected obtain detecting gas density by the measured hole on the described wireway.The gas density that described detection gas density and described methane transducer are recorded compares, and when inconsistent, described methane transducer is calibrated.This step can guarantee that methane transducer has higher certainty of measurement.
The colliery single hole examination device of present embodiment, it is installed on single hole, gas in the single hole just can flow through flow meter module and methane transducer module in this device, can measure the parameters such as temperature, pressure and flow of single hole, can also record the methane concentration of single hole, examine or check out the situation of change of each parameter of single hole effectively.And, can obtain the real-time change situation of above-mentioned each parameter, improved monitoring and measurement capability, can inquire about, the real-time curve of printing list orifice flow amount, pressure, concentration and variations in temperature, satisfied the requirement of examinations such as single hole concentration and flow.
The survey data that has solved during existing single hole is monitored in the prior art is inaccurate, and the problem that can not detect low discharge, realizes measuring sensitive and accurate.
Claims (3)
1. colliery single hole gas surveying device, described measurement mechanism comprise flow meter module (11) and methane transducer module (12), and described flow meter module (11) is connected with methane transducer module (12) by pipeline; It is characterized in that: an end of flow meter module (11) is provided with flow measurement mouth (13), and the other end is provided with connector (14); The connecting union (15) of methane transducer module (12) one ends of connector (14), the other end of methane transducer module (12) is provided with methane and measures mouthful (16); Described flow measurement mouth (13) can be respectively applied for methane measurement mouthful (16) and be connected single-duct conduit.
2. a kind of colliery according to claim 1 single hole gas surveying device, it is characterized in that: described flow meter module is a precession Scroll-tupe flow meter.
3. a kind of colliery according to claim 1 single hole gas surveying device, it is characterized in that: described methane transducer module (12) comprises wireway (22) and methane transducer 21, wherein, one end of wireway (22) and flow meter module (11) are by pipeline connection, and the other end is communicated with methane transducer (21); One side outer pipe wall of described wireway (22) is provided with manual measurement hole (24); The aperture in described manual measurement hole (24) is equipped with nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205714857U CN201810350U (en) | 2010-10-21 | 2010-10-21 | Coal mine single-hole gas measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205714857U CN201810350U (en) | 2010-10-21 | 2010-10-21 | Coal mine single-hole gas measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810350U true CN201810350U (en) | 2011-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205714857U Expired - Fee Related CN201810350U (en) | 2010-10-21 | 2010-10-21 | Coal mine single-hole gas measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913196A (en) * | 2014-04-15 | 2014-07-09 | 淮南矿业(集团)有限责任公司 | Gas flow measuring device |
-
2010
- 2010-10-21 CN CN2010205714857U patent/CN201810350U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913196A (en) * | 2014-04-15 | 2014-07-09 | 淮南矿业(集团)有限责任公司 | Gas flow measuring device |
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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: 20110427 Termination date: 20141021 |
|
| EXPY | Termination of patent right or utility model |