CN205920082U - Oxygen content calibration gas sampling device - Google Patents
Oxygen content calibration gas sampling device Download PDFInfo
- Publication number
- CN205920082U CN205920082U CN201620770359.1U CN201620770359U CN205920082U CN 205920082 U CN205920082 U CN 205920082U CN 201620770359 U CN201620770359 U CN 201620770359U CN 205920082 U CN205920082 U CN 205920082U
- Authority
- CN
- China
- Prior art keywords
- module
- oxygen sensor
- oxygen content
- oxygen
- valve module
- 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
Abstract
The utility model relates to a precision instruments technical field especially relates to an oxygen content calibration gas sampling device. The utility model provides an oxygen content calibration gas sampling device is connected including valve module, oxygen sensor module and sampling pump with controlling means and analytical equipment respectively, and the valve module is connected with the oxygen sensor module, and the oxygen sensor module is passed through analytical equipment and is connected with the sampling pump, the valve module is connected with controlling means, and the input of valve module is connected with await measuring gas input unit and ambient air input unit, and ambient air input unit includes the 2nd preprocessor module who is connected with the valve module, and the 2nd preprocessor module is equipped with and is equipped with gas input 0 in the air inlet be connected with ambient air and the 2nd preprocessor module. The application provides an online calibration device, the accuracy is high, and stability is good, and the controllability is high, safe and reliable, and can whether take place the drift zero point of control assay appearance in to the calibration of oxygen sensor module, the practicality is strong.
Description
Technical field
This utility model is related to precision instrument technical field, more particularly, to a kind of oxygen content calibration gas sampling apparatuses, tool
Body is related to the oxygen content calibration gas sampling apparatuses of a kind of monitoring accuracy that can improve oxygen content and stability.
Background technology
Currently, in conventional flue gas composition in-line analyzer, oxygen content is one of requisite monitoring parameter.
And the detection for oxygen content, generally in normal temperature environment, using electric chemical formula oxygen sensor；And adopt oxygen in hot environment
Change zirconium formula oxygen sensor.For both sensors, during long use, by ambient temperature and pipeline blockage (pipe
Road air pressure increases) impact, the accuracy of its test result can have greatly changed.In addition, due to the reality of sensor
Medium (as electrolyte etc.) required for existing principle can gradually decrease with the increase of its use time, so that oxygen sensor
Long-time stability poor.
From the point of view of the design conditions of existing analyser, its primarily focus on raising other gas componants (as sulfur dioxide, one
Nitrogen oxide etc.) monitoring precision, seldom go pay close attention to oxygen content monitoring accuracy.Meanwhile, from the point of view of live service condition,
For improving the measuring accuracy of oxygen sensor, and compensate it and affected by temperature and pressure, air polluter near is usually used
Carry out oxygen sensor calibration, the oxygen of little configuration standard concentration is bigger than normal to calibrate oxygen sensor, calibration error, and degree of accuracy is low,
The error to measured value at this for the user can be affected, be likely to result in serious consequence.
Utility model content
(1) technical problem to be solved
The purpose of this utility model is: provides the oxygen content calibration of a kind of monitoring accuracy that can improve oxygen content and stability
Gas sampling assembly, with solve existing gas analyser carry out calibrate oxygen sensor when exist degree of accuracy low and stablize poor
Problem.
(2) technical scheme
In order to solve above-mentioned technical problem, this utility model provides a kind of oxygen content calibration gas sampling apparatuses, respectively
It is connected with control device and analytical equipment, for checking the accuracy of detection of oxygen sensor, it includes valve module, oxygen sensor module
And sampling pump, described valve module is connected with oxygen sensor module, described oxygen sensor module pass through described analytical equipment with described
Sampling pump connects；Described valve module is connected with described control device, and the input of described valve module is connected with test gas input
Unit and surrounding air input block, described surrounding air input block includes the second pretreatment mould being connected with described valve module
Block, described second pretreatment module is provided with the air inlet being connected with surrounding air and described second pretreatment module and is provided with filtration
Device.
Wherein, it is provided with, in described oxygen sensor module, the pressure transducer being connected with described control device.
Wherein, it is provided with, in described oxygen sensor module, the temperature sensor being connected with described control device.
Wherein, described valve module is three-way valve or two two-port valves.
Wherein, described under test gas input block includes the first pretreatment module being connected with described valve module, and described
One pretreatment module is provided with the air inlet being connected with test gas source.
Wherein, this oxygen content calibration gas sampling apparatus is also included one end and is connected with described under test gas source, the other end with
The flow feedback adjustment module that described sampling pump connects, described flow feedback adjustment module is used for adjusting the described under test gas of inflow
The flow of the under test gas of input block.
(3) beneficial effect
Technique scheme of the present utility model has the advantage that this utility model provides a kind of oxygen content calibration gas
Sampler body device, is connected with control device and analytical equipment respectively, for checking the accuracy of detection of oxygen sensor, including valve mould
Block, oxygen sensor module and sampling pump, valve module is connected with oxygen sensor module, and oxygen sensor module is passed through analytical equipment and adopted
Sample pump connects；Valve module is connected with control device, and the input of valve module is connected with test gas input block and surrounding air
Input block, surrounding air input block includes the second pretreatment module being connected with valve module, and the second pretreatment module is provided with
It is provided with defecator in the air inlet being connected with surrounding air and the second pretreatment module.The application locates in advance by using through second
Pure air after reason resume module is calibrated to oxygen sensor module, the shadow of temperature of certainly being experienced with online compensation sensor
Ring, degree of accuracy is high, improve the stability that it is monitored to oxygen content under test gas for a long time simultaneously, controllability is high, safely may be used
Lean on.In addition, the oxygen content on-line calibration device operating procedure that the application provides is simple and convenient, and to oxygen sensor modular calibration
While monitoring analysis instrument zero point whether drift about, practical, beneficial to be standardized produce and promote.
Brief description
Fig. 1 be this utility model embodiment oxygen content calibration gas sampling apparatuses, analytical equipment and control device between connect
Connect the structured flowchart of mode；
Fig. 2 is the inside composition structured flowchart of the oxygen content calibration gas sampling apparatuses of this utility model embodiment.
Specific embodiment
Purpose, technical scheme and advantage for making this utility model embodiment are clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described it is clear that being retouched to the technical scheme in this utility model embodiment
The embodiment stated is a part of embodiment of the present utility model, rather than whole embodiments.Based on the reality in this utility model
Apply example, the every other embodiment that those of ordinary skill in the art are obtained on the premise of not making creative work, all
Belong to the scope of this utility model protection.
As shown in Figure 1 to Figure 2, this utility model provides a kind of oxygen content calibration gas sampling apparatuses, respectively with control
Device and analytical equipment connect, and for checking the accuracy of detection of oxygen sensor, it includes valve module, oxygen sensor module and sampling
Pump, valve module is connected with oxygen sensor module, and oxygen sensor module is connected with sampling pump by analytical equipment；Valve module and control
Device connects, and the input of valve module is connected with test gas input block and surrounding air input block, and surrounding air inputs
Unit includes the second pretreatment module being connected with valve module, and the second pretreatment module is provided with the air inlet being connected with surrounding air
And second be provided with defecator in pretreatment module.In the present embodiment, defecator can pollute according to site environment in the air
The composition of thing and content, configuration is corresponding to be used for filtering the device of tie element；Preferably, valve module can adopt two two-port valves
Or a three-way valve.Wherein, two-port valve or three-way valve are electromagnetic valve or machinery valve.For adapting to whole high temperature samples, need by
The coil of valve module is placed in room temperature area, and electromagnetic valve body base is placed in high-temperature region.
Specifically, after the oxygen content calibration gas analyser that the application provides is by using processing through the second pretreatment module
Pure air oxygen sensor module is calibrated, itself be influenced by temperature with online compensation sensor, degree of accuracy is high, with
Its stability of for a long time oxygen content under test gas being monitored of Shi Tigao, controllability is high, safe and reliable.In addition, the application
The oxygen content calibration gas sampling apparatuses providing, structure is simple, easy to operate, and supervises while to oxygen sensor modular calibration
Control analytical equipment zero point whether drift about, practical, beneficial to be standardized produce and promote.
Further, it is provided with, in oxygen sensor module, the pressure transducer being connected with control device.From existing experiment number
According to analysis, the output signal strength of oxygen sensor is linear with pressure, increases pressure and pass therefore in oxygen sensor module
Sensor, with the pressure value of monitor in real time inflow gas, and then the impact that online compensation loine pressure is brought to measurement result.
Further, it is provided with, in oxygen sensor module, the temperature sensor being connected with control device.For adapting to changeable ring
Border temperature, the switching time of in good time control valve module, increases temperature sensor, with monitor in real time stream in oxygen sensor module
Enter the temperature value of gas, and then be easy to when the change of ambient temperature exceedes certain limit, OnNow is calibrated.
Particularly, in the present embodiment, it is simultaneously provided with pressure transducer and temperature sensor, not only in oxygen sensor module
Pressure compensation is carried out to oxygen sensor, has been simultaneously also beneficial to lift the ambient temperature adaptability of oxygen sensor, and then enters one
Improve to step the monitoring accuracy of oxygen sensor, be conducive to the correctness of maintenance test result.
Specifically, in the present embodiment, under test gas input block includes the first pretreatment module being connected with valve module,
First pretreatment module is provided with the air inlet being connected with test gas source.Wherein, for being applied to the analysis demand of different component, if
The first pretreatment module put can be that simply filter dirt processes or does interference deduction process.
Further, in the present embodiment, this oxygen content calibration gas sampling apparatus also includes one end and under test gas source
Connect, the flow feedback adjustment module that the other end is connected with sampling pump, flow feedback adjustment module is used for adjusting inflow gas to be measured
The flow of the under test gas of body input block.Wherein, flow feedback adjusting means can be the three way cock being provided with electromagnetic valve, knot
Close the gas flow parameter in control device, to realize the gas of the particular flow rate flowing under test gas input block is carried out
Analysis.Particularly, flow feedback adjusting means both can be with Non-follow control it is also possible to automatically control, according to actual implementation condition need
Select corresponding regulative mode.
Particularly, in the present embodiment, control device, oxygen content calibration gas sampling apparatuses and analytical equipment are and can divide
From formula module, it is applicable not only to on-line monitoring, be simultaneously applicable to portable monitoring, and by being replaced to analytical equipment,
Can achieve and be applied to most extraction-type fume component analysis instrument, enhance the general of flue gas analysis system in the application
Property.
Particularly, in the present embodiment, control device all calibrates gas with oxygen content respectively by push-in electrical connector
Sampler body device and analytical equipment are attached.Easy accessibility, is easy to change described analytical equipment in time, realizes difference with quick
The analysis of composition.
This utility model additionally provides a kind of oxygen content on-line calibration method, and it includes following operating procedure:
S1, surrounding air flow into the second pretreatment module by pipeline；Wherein, the second pretreatment module is provided with and environment sky
The air inlet that gas connects；
After s2, the surrounding air flowing in the second pretreatment module are processed by defecator, obtain pure air；Its
In, pure air refers to unpolluted air, its composition should with consistent in normal air, generally with air composition
Local value is made comparisons, to discriminate whether clean or contaminated degree；
S3, control three-way valve or two two-port valves are so that the pure air in step s2 flows into calibration pipeline, and pass through oxygen
Sensor measurement flows into the actual oxygen content value of the pure air in calibration pipeline, obtains calibrating the oxygen content calibration in pipeline
Value；To check whether oxygen sensor module is in standard value using pure air, degree of accuracy is high；Controlled by control device simultaneously
Oxygen sensor module processed, improves the stability that it is monitored for a long time to oxygen content under test gas, and controllability is high, safely may be used
Lean on；
S4, the pure air after the measurement of oxygen sensor module in step s3 is arranged by sampling pump after device by analysis
Put to air (i.e. aerofluxuss).Wherein, cooling de-watering subelement can be also provided between analytical equipment and sampling pump, by adopting
After cooling de-watering subelement is processed with conventional sampling pump, it is to avoid the use in disposal of pollutants source, improve the stability of sampling
And controllability, enhance the environmental suitability of system.
This utility model additionally provides a kind of gas measuring method of oxygen content calibration gas sampling apparatuses, and it includes as follows
Operating procedure:
Under test gas in s1, under test gas source flow into the first pretreatment module；Wherein, the first pretreatment module be provided with
The air inlet that under test gas source connects；
S2, by adjusting flow feedback adjustment module so that a part of gas in step s1 flows under test gas input
Unit, residual gas is discharged by sampling pump；
S3, open electromagnetic valve so that in step s2 flow under test gas input block gas sequentially pass through oxygen sensor
After module, analytical equipment and cooling de-watering subelement are processed, and discharged by sampling pump.Wherein, the application passes through using cooling
Eliminating water subelement and conventional sampling pump, it is to avoid the use in disposal of pollutants source, improve stability and the controllability of sampling, increase
The strong environmental suitability of system.
In sum, this utility model provides a kind of oxygen content calibration gas sampling apparatuses, respectively with control device and
Analytical equipment connects, for checking the accuracy of detection of oxygen sensor, including valve module, oxygen sensor module and sampling pump, valve mould
Block is connected with oxygen sensor module, and oxygen sensor module is connected with sampling pump by analytical equipment；Valve module is with control device even
Connect, the input of valve module is connected with test gas input block and surrounding air input block, surrounding air input block bag
Include the second pretreatment module being connected with valve module, the second pretreatment module is provided with the air inlet being connected with surrounding air and second
It is provided with defecator in pretreatment module.The application passes to oxygen by using the pure air after processing through the second pretreatment module
Sensor module is calibrated, and itself is influenced by temperature with online compensation sensor, and degree of accuracy is high, improves it simultaneously and treats for a long time
Survey the stability that in gas, oxygen content is monitored, controllability is high, safe and reliable.In addition, the oxygen content that the application provides is online
Calibrating installation operating procedure is simple and convenient, and whether the zero point of monitoring analysis instrument occurs while to oxygen sensor modular calibration
Drift, practical, beneficial to be standardized produce and promote.
Finally it is noted that above example, only in order to the technical solution of the utility model to be described, is not intended to limit；
Although being described in detail to this utility model with reference to the foregoing embodiments, it will be understood by those within the art that:
It still can be modified to the technical scheme described in foregoing embodiments, or wherein some technical characteristics are carried out etc.
With replacement；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this utility model each embodiment technology
The spirit and scope of scheme.
Claims (6)
1. a kind of oxygen content calibration gas sampling apparatuses, are connected with control device and analytical equipment respectively, for checking oxygen sensing
The accuracy of detection of device it is characterised in that: include valve module, oxygen sensor module and sampling pump, described valve module and oxygen sensor
Module connects, and described oxygen sensor module is connected with described sampling pump by described analytical equipment；Described valve module and described control
Device processed connects, and the input of described valve module is connected with test gas input block and surrounding air input block, described ring
Border air input block includes the second pretreatment module being connected with described valve module, and described second pretreatment module is provided with and ring
It is provided with defecator in the air inlet of border air connection and described second pretreatment module.
2. oxygen content calibration gas sampling apparatuses according to claim 1 it is characterised in that: in described oxygen sensor module
It is provided with the pressure transducer being connected with described control device.
3. oxygen content calibration gas sampling apparatuses according to claim 1 and 2 it is characterised in that: described oxygen sensor mould
It is provided with the temperature sensor being connected with described control device in block.
4. oxygen content calibration gas sampling apparatuses according to claim 1 it is characterised in that: described valve module be three-way valve
Or two two-port valves.
5. oxygen content calibration gas sampling apparatuses according to claim 1 it is characterised in that: the input of described under test gas is single
Unit includes the first pretreatment module being connected with described valve module, and described first pretreatment module is provided with and is connected with test gas source
Air inlet.
6. oxygen content calibration gas sampling apparatuses according to claim 5 it is characterised in that: also include one end and treat with described
Survey gas source to connect, the flow feedback adjustment module that the other end is connected with described sampling pump, described flow feedback adjustment module is used
In the flow adjusting the under test gas flowing into described under test gas input block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620770359.1U CN205920082U (en) | 2016-07-20 | 2016-07-20 | Oxygen content calibration gas sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620770359.1U CN205920082U (en) | 2016-07-20 | 2016-07-20 | Oxygen content calibration gas sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205920082U true CN205920082U (en) | 2017-02-01 |
Family
ID=57872372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620770359.1U Expired - Fee Related CN205920082U (en) | 2016-07-20 | 2016-07-20 | Oxygen content calibration gas sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205920082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973954A (en) * | 2016-07-20 | 2016-09-28 | 力合科技（湖南）股份有限公司 | Oxygen content calibration gas sampling device and online oxygen content calibration method |
-
2016
- 2016-07-20 CN CN201620770359.1U patent/CN205920082U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973954A (en) * | 2016-07-20 | 2016-09-28 | 力合科技（湖南）股份有限公司 | Oxygen content calibration gas sampling device and online oxygen content calibration method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105973954A (en) | Oxygen content calibration gas sampling device and online oxygen content calibration method | |
| CN106706487B (en) | Remote full-flow calibration system for flue gas and ambient air on-line monitoring equipment | |
| CN103399127B (en) | A kind of gas analyzer calibration measurements device and calibration measuring method thereof | |
| CN104793002B (en) | A kind of air automatic monitoring device and method realizing sampling/calibration alternately equivalence operation | |
| CN109541141A (en) | A kind of small air mass monitoring system and analysis method | |
| CN104898719A (en) | Pollution VOC concentration and total discharge amount real-time monitoring system | |
| CN206248652U (en) | Real-time in-situ water quality monitor | |
| CN202092927U (en) | Automatic kinematic viscosity tester | |
| CN103645127A (en) | Back flushing type real-time online monitoring system for smoke pollutants | |
| CN202676680U (en) | Device capable of detecting low-concentration freon in seawater | |
| CN108956529A (en) | For comparing the portable NH of monitoring3, HCl analysis system | |
| CN207730537U (en) | A kind of sack method VOC pretreating devices | |
| CN203241404U (en) | Automatic multi-parameter chemical reagent filling device of water quality online analyzer | |
| CN205920082U (en) | Oxygen content calibration gas sampling device | |
| CN103308515A (en) | Online analysis system and method for detection of CO gas at ammonia synthesis inlet | |
| CN209198394U (en) | VOCs on-line monitoring system | |
| CN106645619A (en) | Real-time in-situ water quality monitor and monitoring method thereof | |
| CN106770940B (en) | A kind of check device of gas analyzer system | |
| CN212158668U (en) | Environment monitoring device and environment monitoring system | |
| CN204479597U (en) | A kind ofly realize sampling/calibration alternately air automatic monitoring the device that runs of equivalence | |
| CN204679877U (en) | Pollution source VOC concentration and total emission volumn real-time monitoring system | |
| CN116212727A (en) | High-precision intelligent dynamic air distribution system and air distribution method thereof | |
| CN207114358U (en) | A kind of detection means and system | |
| KR102485056B1 (en) | Gas sensor probe for measuring dissolved gas of transformer | |
| CN209043848U (en) | A kind of analysis of total sulfur system |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20210720 |