CN206515274U - One kind suction compression type combustible gas probe - Google Patents
One kind suction compression type combustible gas probe Download PDFInfo
- Publication number
- CN206515274U CN206515274U CN201720202334.6U CN201720202334U CN206515274U CN 206515274 U CN206515274 U CN 206515274U CN 201720202334 U CN201720202334 U CN 201720202334U CN 206515274 U CN206515274 U CN 206515274U
- Authority
- CN
- China
- Prior art keywords
- sample
- suction
- forcing pipe
- sample suction
- end wall
- 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
- 239000000523 sample Substances 0.000 title claims abstract description 103
- 230000006835 compression Effects 0.000 title claims abstract description 13
- 238000007906 compression Methods 0.000 title claims abstract description 13
- 239000002737 fuel gas Substances 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 22
- 238000012856 packing Methods 0.000 claims abstract description 13
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims abstract description 8
- 239000003365 glass fiber Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000000314 lubricant Substances 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 4
- 241000208340 Araliaceae Species 0.000 claims description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims description 2
- 235000008434 ginseng Nutrition 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- -1 polytetrafluoroethylene Polymers 0.000 abstract description 4
- 238000005070 sampling Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000007084 catalytic combustion reaction Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Compression type combustible gas probe is aspirated the utility model discloses one kind, forcing pipe is aspirated including sample, sample aspirates pressurizing piston, aspirate pressurizing piston bar, the interior wall that the sample aspirates forcing pipe is separated into sample suction chamber and sample pressurizing chamber by the sample suction pressurizing piston, the sample suction forcing pipe includes suction forcing pipe side wall, sample aspirates end wall and sample pressurization end wall, fuel gas measuring bridge and fuel gas reference electric bridge are provided with the sample pressurization end wall, check valve control air inlet pipe is additionally provided with the sample suction forcing pipe, check valve control blast pipe, the sample suction pressurizing piston is provided with pressurization one-way vent valve；Elastic packing rubber blanket, heat-protecting glass fiber cloth and polytetrafluoroethylene (PTFE) lubricant coating are provided with the inside of the wall of the suction forcing pipe side.The utility model can be pressurizeed to the gas of sampling and carry out removal of impurities except water process.
Description
Technical field
The utility model is related to a kind of combustible gas probe product technical field, and particularly a kind of suction compression type is flammable
Gas detector.
Background technology
Catalytic combustion type sensor is a kind of sensor more conventional in combustible gas probe, and its operation principle is main
Based on a wheatstone bridge configuration：Catalytic specie is scribbled on its measuring bridge, catalytic specie is in whole measurement process
It is not consumed, even if gas and vapor concentration are well below explosion ratio lower limit in atmosphere, fuel gas can also surveyed
Occurs catalyst combustion reaction on amount bridge bridge；The application voltage on reference electric bridge and measuring bridge is needed to add fuel gas during measurement
Heat is so as to occur catalytic reaction, and this temperature is about 500 DEG C or higher.Reference electric bridge and measuring bridge are under normal circumstances
Balance, signal voltage is output as zero；If fuel gas is present, the oxidizing process of fuel gas can be added measuring bridge
Heat, so that the increase of measuring bridge temperature, and reference electric bridge is temperature-resistant, and it is poor that the resistance of reference electric bridge and measuring bridge can be present
It is different, so that output signal voltage.
The main gaseous sample at ambient pressure to directly sampling of catalytic combustion type combustible gas probe of the prior art
Detected, the mode of above-mentioned detection is higher not only for the sensitivity requirement of catalytic combustion type sensor, and directly samples
Gas in can cause the quick aging of catalytic combustion type sensor containing substantial amounts of solid particle and moisture or cause monitoring to tie
The larger error of fruit.
The content of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of suction compression type combustible gas probe,
The gas of sampling can be pressurizeed and carry out removal of impurities except water process, so as to reduce the sensitivity of catalytic combustion type sensor
It is required that, and extend the service life of catalytic combustion type sensor.
The utility model solves the technical scheme that its technical problem used：
One kind suction compression type combustible gas probe, including sample suction forcing pipe, be arranged at sample suction plus
Sample suction pressurizing piston in pressure pipe, the suction pressurizing piston bar for driving the sample suction pressurizing piston, the sample
Product aspirate pressurizing piston and the interior wall that the sample aspirates forcing pipe are separated into sample suction chamber and sample pressurizing chamber, the sample
Aspirating forcing pipe includes setting on suction forcing pipe side wall, sample suction end wall and sample pressurization end wall, the sample pressurization end wall
It is equipped with fuel gas measuring bridge and fuel gas reference electric bridge, and the fuel gas measuring bridge and fuel gas ginseng
It is respectively positioned on than electric bridge in the sample pressurizing chamber, connection ambient atmosphere and the sample is additionally provided with the sample suction forcing pipe
The check valve control air inlet pipe of product suction chamber and the check valve control blast pipe of connection ambient atmosphere and the sample pressurizing chamber, institute
State sample suction pressurizing piston and be provided with pressurization one-way vent valve；Elastic packing is provided with the inside of the wall of the suction forcing pipe side
Be additionally provided with heat-protecting glass fiber cloth on the inside of rubber blanket, the elastic packing rubber blanket, the heat-protecting glass fiber cloth it is interior
Side surface is coated with polytetrafluoroethylene (PTFE) lubricant coating.
As the further improvement of above-mentioned technical proposal, the surface of the fuel gas measuring bridge is coated with fuel gas
Combustion catalyst.
As the further improvement of above-mentioned technical proposal, the connection sample is additionally provided with the sample suction forcing pipe
The check valve control oxygen supplying tube of suction chamber.
As the further improvement of above-mentioned technical proposal, the check valve control air inlet pipe is arranged at the sample suction end wall
On, and piston rod packing mounting guide sleeve is additionally provided with sample suction end wall, the suction pressurizing piston bar is arranged at institute
State in piston rod packing mounting guide sleeve.
Compared with prior art, the beneficial effects of the utility model are：
A kind of suction compression type combustible gas probe provided by the utility model, can be added to the gas of sampling
Press and carry out removal of impurities except water process, so as to reduce the sensitivity requirement of catalytic combustion type sensor, and extend catalytic combustion type biography
The service life of sensor, and with the accurate advantage of simple in construction, monitoring result；And by set elastic packing rubber blanket, every
The workability that hot glass fabric and polytetrafluoroethylene (PTFE) lubricant coating can ensure that suction pressurizing piston is airtight well, lubricate
Energy.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is a kind of structural representation for aspirating compression type combustible gas probe described in the utility model.
Embodiment
Reference picture 1, Fig. 1 is the structural representation of one specific embodiment of the utility model.
As shown in figure 1, a kind of suction compression type combustible gas probe, including sample aspirate forcing pipe 10, are arranged at institute
State the sample suction pressurizing piston 20 in sample suction forcing pipe 10, the suction for driving the sample suction pressurizing piston 20
The interior wall that the sample aspirates forcing pipe 10 is separated into sample suction by pressurizing piston bar 30, the sample suction pressurizing piston 20
Chamber 11 and sample pressurizing chamber 12, the sample suction forcing pipe 10 include suction forcing pipe side wall 13, sample suction end wall 14 and
Fuel gas measuring bridge 41 and fuel gas reference electric bridge are provided with sample pressurization end wall 15, the sample pressurization end wall 15
42, and the fuel gas measuring bridge 41 and the fuel gas reference electric bridge 42 be respectively positioned in the sample pressurizing chamber 12,
The check valve control air inlet pipe of connection ambient atmosphere and the sample suction chamber 11 is additionally provided with the sample suction forcing pipe 10
16 and the check valve control blast pipe 17 of connection ambient atmosphere and the sample pressurizing chamber 12, the sample aspirates pressurizing piston
20 are provided with pressurization one-way vent valve 21；The inner side of suction forcing pipe side wall 13 is provided with elastic packing rubber blanket 131, institute
The inner side for stating elastic packing rubber blanket 131 is additionally provided with heat-protecting glass fiber cloth 132, the heat-protecting glass fiber cloth 132 it is interior
Side surface is coated with polytetrafluoroethylene (PTFE) lubricant coating 133.
As preferred, the surface of the fuel gas measuring bridge 41 is coated with gas fuel burning catalyst 43.Institute
State and be additionally provided with the check valve control oxygen supplying tube 18 for connecting the sample suction chamber 11 on sample suction forcing pipe 10.The check valve
Control air inlet pipe 16 is arranged on the sample suction end wall 14, and is additionally provided with piston rod packing on sample suction end wall 14
Mounting guide sleeve 31, the suction pressurizing piston bar 30 is arranged in the piston rod packing mounting guide sleeve 31.
During work, suction pressurizing piston bar 30 described first drives the sample suction pressurizing piston 20 to be taken out to the sample
Inhale end wall 14 to move, the air in the sample suction chamber 11 is by the pressurization one-way vent valve 21 to the sample pressurizing chamber
Moved in 12, while oxygen enters the sample pressurizing chamber 12 by the check valve control oxygen supplying tube 18；Then the suction adds
Pressure piston rod 30 drives the sample to aspirate pressurizing piston 20 and moved to sample pressurization end wall 15, the sample pressurization of pressurizeing
Air in chamber 12, while the fuel gas measuring bridge 41 and the fuel gas reference electric bridge 42 are carried out to sample air
Detection, detects that the air terminated in the rear sample pressurizing chamber 12 is discharged by the check valve control blast pipe 17, while the external world is treated
The air sample of detection is entered in the sample suction chamber 11 by the check valve control air inlet pipe 16, to carry out next work
Circulation.
Above to it is of the present utility model it is preferable implementation illustrated, certainly, the utility model can also use with
The different form of above-mentioned embodiment, those skilled in the art are made on the premise of without prejudice to the utility model spirit
Equivalent conversion or it is corresponding change, should all belong in protection domain of the present utility model.
Claims (4)
1. one kind suction compression type combustible gas probe, it is characterised in that：Including sample suction forcing pipe (10), it is arranged at institute
State the suction pressurizing piston of the sample in sample suction forcing pipe (10) (20), for driving the sample suction pressurizing piston (20)
Suction pressurizing piston bar (30), sample suction pressurizing piston (20) aspirates the sample interior wall point of forcing pipe (10)
Sample suction chamber (11) and sample pressurizing chamber (12) are divided into, the sample suction forcing pipe (10) includes suction forcing pipe side wall
(13) fuel gas is provided with, sample suction end wall (14) and sample pressurization end wall (15), the sample pressurization end wall (15)
Measuring bridge (41) and fuel gas reference electric bridge (42), and the fuel gas measuring bridge (41) and fuel gas ginseng
It is respectively positioned on than electric bridge (42) in the sample pressurizing chamber (12), it is extraneous to be additionally provided with connection on the sample suction forcing pipe (10)
The check valve control air inlet pipe (16) of air and the sample suction chamber (11) and connect ambient atmosphere and the sample pressurizing chamber
(12) check valve control blast pipe (17), the sample suction pressurizing piston (20) is provided with pressurization one-way vent valve (21)；Institute
State and be provided with elastic packing rubber blanket (131) on the inside of suction forcing pipe side wall (13), the elastic packing rubber blanket (131)
Inner side is additionally provided with heat-protecting glass fiber cloth (132), and the inner surface of the heat-protecting glass fiber cloth (132) is coated with polytetrafluoro
Ethene lubricant coating (133).
2. a kind of suction compression type combustible gas probe according to claim 1, it is characterised in that：The fuel gas
The surface of measuring bridge (41) is coated with gas fuel burning catalyst (43).
3. a kind of suction compression type combustible gas probe according to claim 1, it is characterised in that：The sample suction
The check valve control oxygen supplying tube (18) for connecting the sample suction chamber (11) is additionally provided with forcing pipe (10).
4. a kind of suction compression type combustible gas probe according to claim 1, it is characterised in that：The check valve control
Air inlet pipe (16) is arranged on the sample suction end wall (14), and is additionally provided with piston rod on sample suction end wall (14)
Mounting guide sleeve (31) is sealed, the suction pressurizing piston bar (30) is arranged in the piston rod packing mounting guide sleeve (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720202334.6U CN206515274U (en) | 2017-03-03 | 2017-03-03 | One kind suction compression type combustible gas probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720202334.6U CN206515274U (en) | 2017-03-03 | 2017-03-03 | One kind suction compression type combustible gas probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206515274U true CN206515274U (en) | 2017-09-22 |
Family
ID=59868352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720202334.6U Expired - Fee Related CN206515274U (en) | 2017-03-03 | 2017-03-03 | One kind suction compression type combustible gas probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206515274U (en) |
-
2017
- 2017-03-03 CN CN201720202334.6U patent/CN206515274U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |