CN201984032U - Digital optical interference methane determining device - Google Patents
Digital optical interference methane determining device Download PDFInfo
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- CN201984032U CN201984032U CN2011200831219U CN201120083121U CN201984032U CN 201984032 U CN201984032 U CN 201984032U CN 2011200831219 U CN2011200831219 U CN 2011200831219U CN 201120083121 U CN201120083121 U CN 201120083121U CN 201984032 U CN201984032 U CN 201984032U
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- shell
- light path
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- path system
- digital interference
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Abstract
The utility model relates to a gas determining device, in particular to a digital optical interference methane determining device. The digital optical interference methane determining device comprises a housing, a light path system arranged in the housing and a gas inlet nozzle which is arranged on the housing and communicated with the light path system, wherein an automatic filtering and sampling device is further arranged in the housing between the light path system and the gas inlet nozzle; and the automatic filtering and sampling device comprises an electromagnetic valve arranged on a micro-vacuum pump, and the micro-vacuum pump is further communicated with an absorption chamber communicated with the gas inlet nozzle. Due to the adoption of the structure, the digital optical interference methane determining device has the advantages that the structure is compact and the device is convenient to carry; automatic filtration, multi-protection and automatic compensation are realized; and the detected value can not drift along with temperature variation, and the detection precision is improved.
Description
Technical field
The utility model relates to the eudiometry device, especially a kind of automatic fitration, multiple-protection and automatic compensation, portable digital interference of light methane analyzer.
Background technology
The mechanical type methane pick-up unit of colliery use at present is the interference of light methane detection technique of introducing from Japan the beginning of the fifties.What it adopted is mechanical light channel structure, cheap for manufacturing cost; But volume is bigger and heavy, and is not portable; Barrier propterty is poor; Gas sampling can not be gathered automatically; Temperature, precision are drifted about.
Chinese patent CN2783317 discloses a kind of portable intelligent interference of light methane analyzer, and it comprises shell, light path system and projection imaging system in the enclosure and that be communicated with inlet channel are set.This analyzer is compared with mechanical interference of light methane analyzer, compact conformation, it can be converted to electric signal with the amount of movement of interference of light striped, being converted to the detection data is more directly shown by charactron, its detection speed is fast, degree of accuracy is high, can will detect data with computer interface and in time store, carry and use more convenient; But it can not be sampled to gas automatically, and precision varies with temperature drifts about, and makes measured value inaccurate.
In sum, the problem that the interference of light methane analyzer of prior art exists is that volume is big, can not sample to gas automatically, and precision varies with temperature drifts about, and measured value is inaccurate.
Summary of the invention
The purpose of this utility model provides a kind of automatic fitration, multiple-protection and automatic compensation, portable digital interference of light methane analyzer.
For realizing that the technical scheme that the utility model purpose adopts is such, it is a kind of digital interference of light methane analyzer, comprise shell, in the enclosure light path system is set, is arranged on the shell and the admission piece that is communicated with light path system, wherein: also be provided with the automatic fitration sampling apparatus in the shell between described light path system and the admission piece; Described automatic fitration sampling apparatus comprises the solenoid valve that is arranged on the minipump, and the absorption chamber that minipump also is communicated with admission piece is communicated with.
The described light path system of present embodiment is arranged in the core shell that places in the shell, and is communicated with the automatic fitration sampling apparatus by the sampling outlet nozzle.
Also be provided with pcb board between described shell of said structure and the light path system.
Also be connected with the bucking-out system disk-shaped tube that communicates with atmosphere with reference to chamber connection, the other end of air chamber in an end and the light path system on the described pcb board of said structure.
The top and bottom of the described pcb board of said structure are respectively arranged with overhead gage and lower baffle plate, and overhead gage is provided with the hole of interting for the sampling outlet nozzle.
The described outer casing bottom of said structure is provided with bottom end cover.
Also be provided with the O RunddichtringO between described bottom end cover of said structure and the shell.
The utility model is owing to the advantage that said structure has is: the automatic fitration sampling apparatus can be effectively with airborne dust with after influencing the filtrations such as foreign gas of accuracy of measurement, enter the light path system of rear end triple protection, again processing and the demonstration by light path system and electronic system; The light path system of triple protection is more stable, and the life-span is more permanent; The separate design of sampling by filtration system and detection system makes instrument be more convenient for keeping in repair; Whole stack shell shell further improves the barrier propterty of instrument; Introduce the atmosphere bucking-out system in the process of measuring, the drift that temperature is caused is effectively controlled, and improves the precision of measuring.
Description of drawings
Device of the present utility model can further specify by the indefiniteness embodiment that accompanying drawing provides.
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model cut-open view;
Fig. 3 is an automatic fitration sampling apparatus cut-open view.
Among the figure: 1, admission piece; 2, transparency window; 3, absorption chamber; 4, solenoid valve; 5, pcb board; 6, bucking-out system disk-shaped tube; 7, core shell; 8, shell; 9, lower baffle plate; 10, bottom end cover; 11, light path system; 12, sampling outlet nozzle; 13, overhead gage; 14, minipump; 15, O RunddichtringO; 16, pump valve fixed bin.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Referring to accompanying drawing 1,2 and 3, digital interference of light methane analyzer among the figure, comprise shell 8, be arranged on light path system 11 in the shell 8, be arranged on the shell 8 and the admission piece 1 that is communicated with light path system 11, wherein: also be provided with the automatic fitration sampling apparatus in the shell 8 between described light path system 11 and the admission piece 1; Described automatic fitration sampling apparatus comprises the solenoid valve 4 that is arranged on the minipump 14, and the absorption chamber 3 that minipump 14 also is communicated with admission piece 1 is communicated with.
The described light path system 11 of present embodiment is arranged in the core shell 7 that places in the shell 8, and is communicated with the automatic fitration sampling apparatus by sampling outlet nozzle 12.
Also be provided with pcb board 5 between described shell 8 of said structure and the light path system 11.
Also be connected with the bucking-out system disk-shaped tube 6 that communicates with atmosphere with reference to chamber connection, the other end of air chamber in an end and the light path system on the described pcb board 5 of said structure.
The top and bottom of the described pcb board 5 of said structure are respectively arranged with overhead gage 13 and lower baffle plate 9, and overhead gage 13 is provided with the hole of interting for sampling outlet nozzle 12.
The described shell of said structure 8 bottoms are provided with bottom end cover 10.
Also be provided with O RunddichtringO 15 between described bottom end cover 10 of said structure and the shell 8.
The described minipump 14 of present embodiment is arranged in the pump valve fixed bin 16 with solenoid valve 4, and pump valve fixed bin 16 places in the shell 8.
The described absorption chamber 3 of present embodiment has complete closed chamber and two air chamber of partially enclosed open cavity, and two air chamber are provided with transparency window 2.
The automatic fitration acquisition system of said structure and outer guard shield all adopt plastics or other light materials, and more compact structure, have realized lighter littleizationr of gas detecting instrument, are easy to carry.
The utility model adopts plastic casing, adopts littler air chamber, and lighter material greatly reduces weight of equipment, sampling by filtration is detected be melted into a whole, and realizes sampling automatically, and is more convenient to operate; But maintenance maintenance is convenient in the design of sampling by filtration and detection system overall separation more; Whole cylindrical outer casing designs, and has improved the integral protection performance of instrument; Adopt the triple protection pattern, improved the protective capacities of device greatly, prolong the serviceable life of instrument greatly light path system; Adopt the atmosphere bucking-out system, effectively overcome the drift of temperature, precision.
The technical scheme of sampling by filtration system is: an aspirator that directly links to each other with determining instrument and absorbing agent and asepwirator pump solenoid valve are housed is simultaneously arranged.It is characterized in that minipump and solenoid valve and pump valve power board are fixed in the same insulation shell, and then cooperate with an insulation shell that transparency window splendid attire absorbing agent and filter fiber arranged and to be fitted together, both couple together the aspirator that constitutes an integral body by the through hole that is mated on the admission piece of solenoid valve and the insulation shell, aspirator integral body is positioned at detecting instrument test section front end, the front end of aspirator has the admission piece that communicates with atmosphere, and the rear end has one the valve that partly links to each other with instrument detecting is provided.During equipment work, only need press and measure the suction operation that the button aspirator just can be finished detected gas according to set Automatic Program.
The concrete technical scheme that sampling by filtration separates with detection system is: have one can overall separation sampling by filtration system and detection system.It is characterized in that sampling by filtration system and detection system couple together by a valve, screw retention can realize overall separation.
The concrete technical scheme of whole cylindrical outer casing is: a tubular ambroin shell is arranged.It is characterized in that the ambroin shell is the square tube of a hollow, wherein an end has to be connected with the sampling by filtration system and joins and concave station, the other end have join with the shell bottom end cover and flange.
The concrete technical scheme of the triple protection of light path system is: have one by insulation crust, the light path system that circuit board, movement protect.It is characterized in that: good " O " type circle of elasticity all is equipped with at the insulation crust place of interconnecting, and prevents that airborne dust from entering pollution inside, and this is the first heavily protection; Be right after six pcb boards and two framework Circuits System that go up an airtight hollow of lower baffle plate formation in the insulation shell, baffle plate can be a metal, also can be other materials such as plastics, and this is the second heavily protection; In the framework that pcb board constitutes, also have a complete airtight core shell, be the triple protection of light path.
The concrete technical scheme of atmosphere bucking-out system is: a disk-shaped tube is arranged.It is characterized in that being fixed on the pcb board with the disk-shaped tube that capillary PU pipe is coiled to form, the disk-shaped tube two ends wherein an end provide with light path system in air chamber with reference to chamber UNICOM, the interface that the other end provides with atmosphere communicates links to each other.
Said structure can also be used for other gaseous matters such as carbon dioxide are detected.
In sum, this structure is owing to the advantage that described structure has is: compact conformation is easy to carry; Automatic fitration, multiple-protection and compensation automatically; Detected value does not vary with temperature and drifts about, and has improved accuracy of detection.
Claims (9)
1. digital interference of light methane analyzer, comprise shell (8), be arranged on the interior light path system (11) of shell (8), be arranged on the admission piece (1) that shell (8) is gone up and is communicated with light path system (11), it is characterized in that: also be provided with the automatic fitration sampling apparatus in the shell (8) between described light path system (11) and the admission piece (1); Described automatic fitration sampling apparatus comprises the solenoid valve (4) that is arranged on the minipump (14), and the absorption chamber (3) that minipump (14) also is communicated with admission piece (1) is communicated with.
2. digital interference of light methane analyzer according to claim 1 is characterized in that: described light path system (11) is arranged in the core shell (7) that places in the shell (8), and is communicated with the automatic fitration sampling apparatus by sampling outlet nozzle (12).
3. digital interference of light methane analyzer according to claim 1 and 2 is characterized in that: also be provided with pcb board (5) between described shell (8) and the light path system (11).
4. digital interference of light methane analyzer according to claim 3 is characterized in that: the bucking-out system disk-shaped tube (6) that communicates with atmosphere with reference to chamber connection, the other end that also is connected with air chamber in an end and the light path system on the described pcb board (5).
5. digital interference of light methane analyzer according to claim 4, it is characterized in that: the top and bottom of described pcb board (5) are respectively arranged with overhead gage (13) and lower baffle plate (9), and overhead gage (13) is provided with the hole of interting for sampling outlet nozzle (12).
6. digital interference of light methane analyzer according to claim 1 is characterized in that: described shell (8) bottom is provided with bottom end cover (10).
7. digital interference of light methane analyzer according to claim 6 is characterized in that: also be provided with O RunddichtringO (15) between described bottom end cover (10) and the shell (8).
8. digital interference of light methane analyzer according to claim 1 is characterized in that: described minipump (14) is arranged in the pump valve fixed bin (16) with solenoid valve (4), and pump valve fixed bin (16) places in the shell (8).
9. digital interference of light methane analyzer according to claim 1 is characterized in that: described absorption chamber (3) has complete closed chamber and two air chamber of partially enclosed open cavity, and two air chamber are provided with transparency window (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200831219U CN201984032U (en) | 2011-03-25 | 2011-03-25 | Digital optical interference methane determining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200831219U CN201984032U (en) | 2011-03-25 | 2011-03-25 | Digital optical interference methane determining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201984032U true CN201984032U (en) | 2011-09-21 |
Family
ID=44611490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200831219U Expired - Fee Related CN201984032U (en) | 2011-03-25 | 2011-03-25 | Digital optical interference methane determining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201984032U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692395A (en) * | 2012-04-28 | 2012-09-26 | 重庆同博测控仪器有限公司 | Light interference gas detection device and working condition detection method thereof |
| CN106596470A (en) * | 2016-12-02 | 2017-04-26 | 辽宁工程技术大学 | Portable high-resolution CCD light interference type mash gas detector |
| CN106885788A (en) * | 2017-03-20 | 2017-06-23 | 辽宁工程技术大学 | A kind of pump suction type CCD interference of light gas concentration monitoring system |
-
2011
- 2011-03-25 CN CN2011200831219U patent/CN201984032U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692395A (en) * | 2012-04-28 | 2012-09-26 | 重庆同博测控仪器有限公司 | Light interference gas detection device and working condition detection method thereof |
| CN106596470A (en) * | 2016-12-02 | 2017-04-26 | 辽宁工程技术大学 | Portable high-resolution CCD light interference type mash gas detector |
| CN106885788A (en) * | 2017-03-20 | 2017-06-23 | 辽宁工程技术大学 | A kind of pump suction type CCD interference of light gas concentration monitoring system |
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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: 20110921 Termination date: 20180325 |
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| CF01 | Termination of patent right due to non-payment of annual fee |