CN106066309A - Methane gas extraction pipeline methane concentration non-contact laser detection device and using method - Google Patents
Methane gas extraction pipeline methane concentration non-contact laser detection device and using method Download PDFInfo
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- CN106066309A CN106066309A CN201610549183.1A CN201610549183A CN106066309A CN 106066309 A CN106066309 A CN 106066309A CN 201610549183 A CN201610549183 A CN 201610549183A CN 106066309 A CN106066309 A CN 106066309A
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- Prior art keywords
- methane
- laser
- air chamber
- explosion
- extraction pipeline
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
Abstract
The present invention relates to methane gas extraction pipeline methane concentration non-contact laser detection device and using method, including laser inlet connecting clip, laser methane probe is connected on air chamber, feature is: air chamber includes with laser inlet connecting order pipe connected pipe road, the top wall fixture in printing opacity chamber, blank air chamber body, in blank air chamber body, portion is arranged above with explosion-proof transmission lens, reflective mirror is arranged below, blank air chamber external body is arranged above with explosion-proof transmission lens and cleans mouth, reflective mirror is arranged below and cleans mouth.Also disclose the using method of device.Use clamp connection, it is easy to dismounting and the maintenance of laser methane probe, eliminate that routine techniques easily blocks, gas collecting speed is slow, gas diffusion is uneven, affected the problems such as big by steam dust, avoid affecting the accuracy of detection of entirety owing to reflective mirror or explosion-proof transmission lens are polluted by the dust in pipeline and steam, good stability, accuracy of detection is high, uses simple.
Description
Technical field
The present invention relates to methane concentration non-contact laser detection device and detection method, particularly to a kind of gas pumping pipe
Road methane concentration non-contact laser detection device and using method.
Background technology
Along with laser technology exists at the development in mine supervision field, the laser spectrum absorption sensing technology with good prospect
Being paid attention to the most widely, compared with conventional mining sensing technology, laser sensing technology has: response speed
Hurry up, capacity of resisting disturbance is strong, adjustment cycle length, security performance and the many advantages such as sensitivity is high, so colliery laser sensor
Traditional sensors will be replaced, and become the inexorable trend of Coal Mine Monitoring System production development of future generation.
The development recycled along with gas power generation technology and gas pumping in recent years so that colliery utilizes the enthusiasm of gas
Surging, hundreds of set gas electricity unit has been installed in the current whole nation, is wherein no lack of the gas utilizing concentration to be less than 30%.And gas exists
There are major safety risks during discharge, conveying and extraction；Thus, research gas pumping, carry, utilize, discharge link
Safeguard technology also forms series standard, the safety behavior of effective its each link of specification of energy, promotes that gas pumping utilizes and produces
Developing rapidly of industry, promote China energy-conserving and emission-cutting technology level of security, and among these for pipeline gas density monitoring just
Become the most important thing.
But conventional pipeline laser methane sensor, the sensor including hot Cuiization, the detection mode such as infrared was detecting
Journey all exists an important difficult problem, it is simply that the most efficient, convenient, stable detects current gas from methane gas extraction pipeline
The concentration of body, the monitoring of existing methane gas extraction pipeline methane concentration substantially uses micro-pressure-difference to take the side such as gas or free diffusing
Formula, in use needs to be inserted in pipeline collector, and existing subject matter is the gas port of collector
Road, easily blocking, gas collecting speed are slowly, gas diffusion is uneven, affected the problems such as big by steam dust；And another
Conventional takes gas mode, be by conduit, methane gas is extracted out from methane gas extraction pipeline and is carried out pretreatment after detect again,
Operating process is complicated, detection speed is slow and measures inaccuracy.
Summary of the invention
The present invention is not enough in order to solve existing for prior art, proposes methane gas extraction pipeline methane concentration non-contact laser
Detection device and using method.
The technical solution used in the present invention is: a kind of methane gas extraction pipeline methane concentration non-contact laser detection device, bag
Including laser inlet connecting clip to be connected on air chamber by laser methane probe, feature is: air chamber includes with printing opacity chamber
Top laser inlet connecting order pipe connected pipe road wall fixture, blank air chamber body, blank air chamber body upper interior
Being provided with explosion-proof transmission lens, reflective mirror is arranged below, blank air chamber external body is arranged above with explosion-proof transmission lens and cleans mouth,
Reflective mirror is arranged below and cleans mouth.
Wherein: explosion-proof transmission lens cleans mouth, reflective mirror cleans mouth and connects protection cleaning trachea respectively, and air chamber is by pipe
Road wall fixture is fixed on gas pumping tube wall, and protection is cleaned trachea pipe outer end and is provided with controlled valve, and solid with snap joint
It is scheduled on gas pumping tube wall.
A kind of methane gas extraction pipeline methane concentration non-contact laser detection device using method, including with clip by laser
Inlet connecting is connected with laser methane probe, is welded on gas pumping tube wall by duct wall fixture at welding position, will
The protection effective snap joint of purgative gas is welded on gas pumping tube wall at welding position, the laser that laser methane probe is sent
Entering in air chamber by printing opacity chamber through explosion-proof transmission lens, the reflection through reflective mirror forms light path detection gas
Methane concentration in extraction pipeline, after explosion-proof transmission lens, reflective mirror are contaminated, after opening controlled valve cleaning, then detects
Methane concentration in methane gas extraction pipeline.
Wherein: protection is cleaned trachea and accessed gases at high pressure or water under high pressure.
The beneficial effects of the present invention is: use clamp connection, it is simple to the dismounting of laser methane probe and maintenance, eliminate
Routine techniques easily blocks, gas collecting speed slow, gas diffusion is uneven, affected the problems such as big by steam dust, it is to avoid
The accuracy of detection of entirety is affected, surely owing to reflective mirror or explosion-proof transmission lens are polluted by the dust in pipeline and steam
Qualitative good, accuracy of detection is high, uses simple.
Accompanying drawing explanation
Fig. 1 is the overall schematic of the embodiment of the present invention；
Fig. 2 is the air chamber schematic diagram of the embodiment of the present invention.
1. air chamber in figure, 2. reflective mirror, 3. reflective mirror cleans mouth, 4. duct wall fixture, 5. laser entrance
Connector, the most explosion-proof transmission lens, 7. laser methane probe, 8. trachea, 9. welding position, 10. gas pumping are cleaned in protection
Tube wall, 11. light paths, 12. snap joints, 13. explosion-proof transmission lens clean mouth, 15. printing opacity chambeies, 18. controlled valves.
Detailed description of the invention
First embodiment
Seeing Fig. 1, Fig. 2, a kind of methane gas extraction pipeline methane concentration non-contact laser detection device, including laser inlet connecting
Laser methane probe 7 is connected on air chamber 1 by 5 with clip, and feature is: air chamber 1 includes the top laser with printing opacity chamber 15
Inlet connecting 5 order pipe connected pipe road wall fixture 4, blank air chamber body, in blank air chamber body, portion is arranged above with explosion-proof
Transmission lens 6, is arranged below reflective mirror 2, and blank air chamber external body is arranged above with explosion-proof transmission lens and cleans mouth 13, below
It is provided with reflective mirror and cleans mouth 3.
Second embodiment
Seeing Fig. 1, Fig. 2, a kind of methane gas extraction pipeline methane concentration non-contact laser detection device, including laser inlet connecting
Laser methane probe 7 is connected on air chamber 1 by 5 with clip, and feature is: air chamber 1 includes the top laser with printing opacity chamber 15
Inlet connecting 5 order pipe connected pipe road wall fixture 4, blank air chamber body, in blank air chamber body, portion is arranged above with explosion-proof
Transmission lens 6, is arranged below reflective mirror 2, and blank air chamber external body is arranged above with explosion-proof transmission lens and cleans mouth 13, below
It is provided with reflective mirror and cleans mouth 3.
Wherein: explosion-proof transmission lens cleans mouth 13, reflective mirror cleans mouth 3 and connects protection cleaning trachea 8, air chamber 1 respectively
Being fixed on gas pumping tube wall 10 by duct wall fixture 4, protection is cleaned trachea 8 pipe outer end and is provided with controlled valve 18, and
It is fixed on gas pumping tube wall 10 with snap joint 12.
3rd embodiment
Seeing Fig. 1, Fig. 2, the using method of a kind of methane gas extraction pipeline methane concentration non-contact laser detection device, including with blocking
Bind round and laser inlet connecting 5 is connected with laser methane probe 7, duct wall fixture 4 is welded on gas at welding position 9 and takes out
Adopt on tube wall 10, protection cleaning trachea 8 snap joint 12 is welded on gas pumping tube wall 10 at welding position 9, laser
The laser that methane probe 7 is sent enters in air chamber 1 through explosion-proof transmission lens 6, through reflective mirror 2 by printing opacity chamber 15
Reflection form light path 11 and detect methane concentration in methane gas extraction pipeline, when explosion-proof transmission lens 6, reflective mirror 2 are dirty
After dye, after opening controlled valve 18 cleaning, then detect methane concentration in methane gas extraction pipeline.
4th embodiment
Seeing Fig. 1, Fig. 2, the using method of a kind of methane gas extraction pipeline methane concentration non-contact laser detection device, including with blocking
Bind round and laser inlet connecting 5 is connected with laser methane probe 7, duct wall fixture 4 is welded on gas at welding position 9 and takes out
Adopt on tube wall 10, protection cleaning trachea 8 snap joint 12 is welded on gas pumping tube wall 10 at welding position 9, laser
The laser that methane probe 7 is sent enters in air chamber 1 through explosion-proof transmission lens 6, through reflective mirror 2 by printing opacity chamber 15
Reflection form light path 11 and detect methane concentration in methane gas extraction pipeline, when explosion-proof transmission lens 6, reflective mirror 2 are dirty
After dye, after opening controlled valve 18 cleaning, then detect methane concentration in methane gas extraction pipeline.
Wherein: protection is cleaned trachea 8 and accessed gases at high pressure or water under high pressure.
Claims (4)
1. a methane gas extraction pipeline methane concentration non-contact laser detection device, will swash including laser inlet connecting clip
Light methane probe is connected on air chamber, is characterised by: air chamber includes the top laser inlet connecting order pipe with printing opacity chamber
Connecting duct wall fixture, blank air chamber body, in blank air chamber body, portion is arranged above with explosion-proof transmission lens, is arranged below anti-
Light minute surface, blank air chamber external body is arranged above with explosion-proof transmission lens and cleans mouth, reflective mirror is arranged below and cleans mouth.
A kind of methane gas extraction pipeline methane concentration non-contact laser detection device the most according to claim 1, its feature exists
In: explosion-proof transmission lens cleans mouth, reflective mirror cleans mouth and connects protection cleaning trachea respectively, and air chamber passes through duct wall fixture
Being fixed on gas pumping tube wall, protection is cleaned trachea pipe outer end and is provided with controlled valve, and is fixed on gas with snap joint and takes out
Adopt on tube wall.
3. a using method for methane gas extraction pipeline methane concentration non-contact laser detection device, is characterised by: include with card
Bind round and laser inlet connecting is connected with laser methane probe, duct wall fixture is welded on gas pumping pipe at welding position
On wall, being welded on protecting the effective snap joint of purgative gas on gas pumping tube wall at welding position, laser methane probe is sent out
The laser gone out enters in air chamber by printing opacity chamber through explosion-proof transmission lens, and the reflection through reflective mirror forms light path
Methane concentration in detection methane gas extraction pipeline, after explosion-proof transmission lens, reflective mirror are contaminated, open controlled valve and cleans
After, then detect methane concentration in methane gas extraction pipeline.
The user of a kind of methane gas extraction pipeline methane concentration non-contact laser the most according to claim 3 detection device
Method, it is characterised in that: protection is cleaned trachea and is accessed gases at high pressure or water under high pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610549183.1A CN106066309A (en) | 2016-07-13 | 2016-07-13 | Methane gas extraction pipeline methane concentration non-contact laser detection device and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610549183.1A CN106066309A (en) | 2016-07-13 | 2016-07-13 | Methane gas extraction pipeline methane concentration non-contact laser detection device and using method |
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| Publication Number | Publication Date |
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| CN106066309A true CN106066309A (en) | 2016-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610549183.1A Pending CN106066309A (en) | 2016-07-13 | 2016-07-13 | Methane gas extraction pipeline methane concentration non-contact laser detection device and using method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540792A (en) * | 2018-10-08 | 2019-03-29 | 煤科集团沈阳研究院有限公司 | Methane gas extraction pipeline methane concentration detection device |
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| US20020058329A1 (en) * | 2000-02-18 | 2002-05-16 | Sharat Singh | Multiple-site reaction device and method |
| CN1867820A (en) * | 2003-10-16 | 2006-11-22 | 光学传感公司 | System and method for detecting water vapor within natural gas |
| CN201016927Y (en) * | 2006-05-26 | 2008-02-06 | 戴庆超 | Quantum laser flue gas continuous analysis sensor |
| CN201707287U (en) * | 2010-05-25 | 2011-01-12 | 西安聚能仪器有限公司 | Single-wall installation gas chamber for laser gas analyzer |
| CN203025075U (en) * | 2012-12-28 | 2013-06-26 | 镇江中煤电子有限公司 | Pipeline infrared methane sensor |
| CN204346891U (en) * | 2014-09-15 | 2015-05-20 | 南京艾伊科技有限公司 | Infrared spectrum analyser air chamber coupling arrangement |
| CN204536181U (en) * | 2015-04-15 | 2015-08-05 | 中煤科工集团重庆研究院有限公司 | Mining infrared methane sensor pressure influence test unit |
| CN205958450U (en) * | 2016-07-13 | 2017-02-15 | 煤科集团沈阳研究院有限公司 | Gas extraction pipe way methane concentration non -contact laser detection device |
-
2016
- 2016-07-13 CN CN201610549183.1A patent/CN106066309A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020058329A1 (en) * | 2000-02-18 | 2002-05-16 | Sharat Singh | Multiple-site reaction device and method |
| CN1867820A (en) * | 2003-10-16 | 2006-11-22 | 光学传感公司 | System and method for detecting water vapor within natural gas |
| CN201016927Y (en) * | 2006-05-26 | 2008-02-06 | 戴庆超 | Quantum laser flue gas continuous analysis sensor |
| CN201707287U (en) * | 2010-05-25 | 2011-01-12 | 西安聚能仪器有限公司 | Single-wall installation gas chamber for laser gas analyzer |
| CN203025075U (en) * | 2012-12-28 | 2013-06-26 | 镇江中煤电子有限公司 | Pipeline infrared methane sensor |
| CN204346891U (en) * | 2014-09-15 | 2015-05-20 | 南京艾伊科技有限公司 | Infrared spectrum analyser air chamber coupling arrangement |
| CN204536181U (en) * | 2015-04-15 | 2015-08-05 | 中煤科工集团重庆研究院有限公司 | Mining infrared methane sensor pressure influence test unit |
| CN205958450U (en) * | 2016-07-13 | 2017-02-15 | 煤科集团沈阳研究院有限公司 | Gas extraction pipe way methane concentration non -contact laser detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540792A (en) * | 2018-10-08 | 2019-03-29 | 煤科集团沈阳研究院有限公司 | Methane gas extraction pipeline methane concentration detection device |
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Application publication date: 20161102 |