CN206804615U - A kind of high oxygen analyzer of ion stream - Google Patents
A kind of high oxygen analyzer of ion stream Download PDFInfo
- Publication number
- CN206804615U CN206804615U CN201720459881.2U CN201720459881U CN206804615U CN 206804615 U CN206804615 U CN 206804615U CN 201720459881 U CN201720459881 U CN 201720459881U CN 206804615 U CN206804615 U CN 206804615U
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- China
- Prior art keywords
- sensor
- aspiration pump
- test chamber
- unidirectional
- ion stream
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Abstract
The utility model discloses a kind of high oxygen analyzer of ion stream, including for the sensor test chamber for sample air-flow warp, ion stream lambda sensor is provided with the sensor test chamber, wherein, aspiration pump is connected with the front end of the sensor test chamber or the sensor test chamber, the aspiration pump is unidirectional aspiration pump, and the outlet side of the unidirectional aspiration pump is connected with sensor test chamber, and the inlet end of the unidirectional aspiration pump connects with surrounding air.The high oxygen analyzer of ion stream provided by the utility model, the method of the oxygen concentration of sensor local environment reduces the peak overshoot of sensor signal when being started shooting by reducing analyzer, during so as to solve analyzer start in the prior art, the problem of sensor damages because of overshoot, and it is simple in construction, it is easy to implement.
Description
Technical field
It the utility model is related to a kind of oxygen analyzer, more particularly to a kind of high oxygen analyzer of ion stream.
Background technology
In the fields of measurement of high content oxygen, ion stream lambda sensor is looked forward to by internal and international well-known oxygen analyser
The sensor that industry generally uses, such as Britain Shi Fumei, Germany is than happy, Chinese long day Chinese mugwort etc..
In order to meet ion stream lambda sensor to high content oxygenation measurement, it needs to be heated to more than 700 DEG C of high temperature shape
State.Because the oxygen content in sensor local environment is higher, the output signal of sensor is also bigger.When sensor, to be in oxygen dense
In the higher environment of degree, after analyzer start, sensor temperature is quickly raised, and the output signal of sensor can be caused drastically to increase
Add, more than the extreme value of sensor, overshoot phenomenon occurs, now the show value of analyzer can be for a long time（It is more than half an hour）'s
It is maintained at the state of full scale（Such as 99.99%）, can not normal reading.Meanwhile the generation overshoot that sensor is regular, meeting
Shorten the service life of sensor, influence its measurement accuracy.
For sensor signal overshoot phenomenon, some producers and without processing, so the use to sensor is not extremely
Profit；Some producers extend the preheating time of analyzer by software, reduce overshoot, but can so extend analyzer start
Response time afterwards, and peak overshoot can only be reduced to a certain extent, still there can be a certain degree of overshoot phenomenon.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of high oxygen analyzer of ion stream, can solve the problem that existing skill
When analyzer is started shooting in art, the problem of sensor damages because of overshoot.
The utility model is to provide a kind of ion stream hyperoxia analysis to solve the technical scheme that above-mentioned technical problem uses
Instrument, including for supplying the sensor test chamber of sample air-flow warp, ion stream lambda sensor is provided with the sensor test chamber, its
In, aspiration pump is connected with the front end of the sensor test chamber or the sensor test chamber, the aspiration pump is unidirectional
Aspiration pump, the outlet side of the unidirectional aspiration pump are connected with sensor test chamber, the inlet end and ring of the unidirectional aspiration pump
Border air communication.
The high oxygen analyzer of above-mentioned ion stream, wherein, the blow air flow control of the unidirectional aspiration pump is 200-
1000ml/min。
The utility model contrast prior art has following beneficial effect：Ion stream hyperoxia analysis provided by the utility model
Instrument, the method for the oxygen concentration of sensor local environment reduces the overshoot peak of sensor signal when being started shooting by reducing analyzer
Value, so as to solve the problem of when analyzer is started shooting in the prior art, sensor damages because of overshoot, and it is simple in construction, easily
In implementation.
Brief description of the drawings
Fig. 1 is a kind of ion stream hyperoxia analytical structure schematic diagram of the present utility model；
Fig. 2 is another high oxygen analyzer structural representation of ion stream of the present utility model.
Embodiment
The utility model will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of ion stream hyperoxia analytical structure schematic diagram of the present utility model；Fig. 2 is another kind of the present utility model
The high oxygen analyzer structural representation of ion stream.
Fig. 1 and Fig. 2 are referred to, the high oxygen analyzer of ion stream provided by the utility model includes being used for the biography for sample air-flow warp
Sensor test chamber（It is not shown）, ion stream lambda sensor 1 is provided with the sensor test chamber, wherein, the sensor test
Aspiration pump is connected with the front end of chamber or the sensor test chamber, the aspiration pump is unidirectional aspiration pump 2, described unidirectionally to take out
The outlet side of air pump 1 is connected with sensor test chamber, and the inlet end of the unidirectional aspiration pump 1 connects with surrounding air.
The high oxygen analyzer of ion stream provided by the utility model, connects in the front end of sensor test chamber or on test chamber
A unidirectional aspiration pump 2 is connect, and the outlet side of this unidirectional aspiration pump 2 is connected with sensor test chamber, unidirectional aspiration pump 2
Inlet end connects with surrounding air.The general principle of the utility model start is to blow air to sensor, is passed when reducing start
Oxygen concentration in sensor local environment, avoid sensor signal over-limit condition.
Unidirectional aspiration pump of the present utility model is connected with controller, as follows using controlling such as single-chip microcomputer or industrial computer：
Analyzer is powered after start, while opens unidirectional aspiration pump 2, and unidirectional aspiration pump 2 is by the blow air in environment
To around sensor, air is mixed with the sample gas around sensor, reduce its oxygen concentration.After sensor heating is completed,
Unidirectional aspiration pump 2 is closed by controller control, only allows sample air-flow to be tested through sensor.Because unidirectional aspiration pump 2 is not permitted
Perhaps direction flowing of the gas from its gas outlet to air inlet, so adding after unidirectional aspiration pump, will not change original gas circuit
Gas flow.
The degree that the utility model reduces the oxygen concentration of sensor local environment is big by sample gas and unidirectional aspiration pump rate of air sucked in required
Small influence, and flow needed for ion stream normal operation of sensor is in 200-1000ml/min, so the utility model prioritizing selection
Extraction flow is more than 500ml/min unidirectional aspiration pump.
Compared with prior art, the utility model has the advantages that：
（1）The utility model increases a unidirectional aspiration pump in gas path pipe, is blown into air to sensor, reduces sensing
The oxygen concentration of device local environment, it can so make sensor signal after quick increase not over its limiting value.
（2）The utility model can make sensor heat after can normal reading, improve response speed.
（3）The utility model is simple in construction, and used material is common used material, possesses very high practicality, easily
In large-scale popularization and application.
Although the utility model is disclosed as above with preferred embodiment, so it is not limited to the utility model, any
Those skilled in the art, do not departing from spirit and scope of the present utility model, when a little modification and perfect, therefore this can be made
The protection domain of utility model is worked as to be defined by what claims were defined.
Claims (2)
1. a kind of high oxygen analyzer of ion stream, including for the sensor test chamber for sample air-flow warp, the sensor test chamber
In be provided with ion stream lambda sensor, it is characterised in that on the front end of the sensor test chamber or the sensor test chamber
Aspiration pump is connected with, the aspiration pump is unidirectional aspiration pump, and the outlet side of the unidirectional aspiration pump is connected with sensor test chamber
Logical, the inlet end of the unidirectional aspiration pump connects with surrounding air.
2. the high oxygen analyzer of ion stream as claimed in claim 1, it is characterised in that the blow air stream of the unidirectional aspiration pump
Amount control is 200-1000ml/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720459881.2U CN206804615U (en) | 2017-04-28 | 2017-04-28 | A kind of high oxygen analyzer of ion stream |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720459881.2U CN206804615U (en) | 2017-04-28 | 2017-04-28 | A kind of high oxygen analyzer of ion stream |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206804615U true CN206804615U (en) | 2017-12-26 |
Family
ID=60738810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720459881.2U Active CN206804615U (en) | 2017-04-28 | 2017-04-28 | A kind of high oxygen analyzer of ion stream |
Country Status (1)
| Country | Link |
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| CN (1) | CN206804615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896196A (en) * | 2017-04-28 | 2017-06-27 | 上海昶艾电子科技有限公司 | A kind of ion stream oxygen analyzer high and its power-on protection method |
-
2017
- 2017-04-28 CN CN201720459881.2U patent/CN206804615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896196A (en) * | 2017-04-28 | 2017-06-27 | 上海昶艾电子科技有限公司 | A kind of ion stream oxygen analyzer high and its power-on protection method |
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