CN203643396U - Electrochemical trace oxygen analyzer capable of effectively prolonging service life of sensor - Google Patents
Electrochemical trace oxygen analyzer capable of effectively prolonging service life of sensor Download PDFInfo
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- CN203643396U CN203643396U CN201320694050.5U CN201320694050U CN203643396U CN 203643396 U CN203643396 U CN 203643396U CN 201320694050 U CN201320694050 U CN 201320694050U CN 203643396 U CN203643396 U CN 203643396U
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000001301 oxygen Substances 0.000 title claims abstract description 37
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 37
- 239000007789 gas Substances 0.000 claims abstract description 84
- 238000012360 testing method Methods 0.000 claims abstract description 44
- 230000004224 protection Effects 0.000 claims description 25
- 239000000126 substance Substances 0.000 claims description 19
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 230000004308 accommodation Effects 0.000 claims description 3
- 238000004868 gas analysis Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 230000006378 damage Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to the field of gas analysis, and in particular relates to an electrochemical trace oxygen analyzer capable of effectively prolonging the service life of a sensor. The electrochemical trace oxygen analyzer comprises a gas path system, a sensor system, a control system, a power system and a display system, wherein the gas path system is connected with the sensor system; the control system is connected with the gas path system, the sensor system, the power system and the display system respectively; the sensor system comprises the sensor and a testing chamber with a sensor accommodating space; a gas inlet and a gas outlet of the testing chamber are connected with the sensor; electromagnetic valves are arranged at the gas inlet and the gas outlet, and are connected with the control system. According to the electrochemical trace oxygen analyzer capable of effectively prolonging the service life of the sensor, the damaged or old sensor can be conveniently replaced, and the service life of the analyzer is prolonged; by balancing gas pressure in a gas path of the oxygen analyzer, the service life of the sensor is greatly prolonged.
Description
Technical field
The utility model relates to gas analysis field, refers to especially a kind of effective prolongation sensor chemical trace amount oxygen analyzer in serviceable life.
Background technology
Trace oxygen analyzer is generally used for oxygen content to have the working environment of special requirement, is one of vitals of trace oxygen analyzer accordingly for detection of the electrochemical sensor of oxygen content.
Electrochemical sensor is the core component of chemical trace amount oxygen analyzer, when tested gas enters in test chamber, oxygen in gas and sensor internal material react, and export continuously current signal according to the oxygen concentration of gas, after output current by circuit control panel acquisition and processing sensor, pass to microcontroller, microcontroller carries out calculating and sending to signal and goes out command adapted thereto, provides output by circuit control panel and display system.
And prior art lacks device or method that electrochemical sensor is protected, make electrochemical sensor often expose to the open air oxygen concentration compared with high environment in and affect its measuring accuracy and reduction of service life;
Often there is too large (malleation) or too little (negative pressure) and cause electrochemical sensor to damage of gaseous tension, because this sensor is expensive, caused great economic loss to user; Simultaneous electrochemical sensor internal is containing noxious material, and the sensor of damage, as dealt with improperly, can cause destruction to a certain degree to environment;
If sensor damages, in prior art, more emat sensor bothers very much, even needs expert engineer just can accomplish, and its maintenance cycle is long, expense is high, and user's production measurement is brought to a lot of inconvenience;
Assistant officer waits to occur a kind ofly can have the model electrochemical trace oxygen analyzer addressing the aforementioned drawbacks.
Utility model content
The chemical trace amount oxygen analyzer that the utility model provides, its object is to provide a kind of electrochemical sensor serviceable life of effectively extending, and replaces oxygen analyzer efficiently.
The technical solution of the utility model is achieved in that the effective prolongation sensor chemical trace amount oxygen analyzer in serviceable life, comprise air-channel system, sensing system, control system, power-supply system and display system, described air-channel system is connected with sensing system, control system connects respectively air-channel system, sensing system, power-supply system and display system, described sensing system comprises sensor and has the test chamber of sensor spatial accommodation, air intake opening and gas outlet connecting sensor that described test chamber arranges, air intake opening and gas outlet are also provided with solenoid valve, described solenoid valve is connected with control system.
Optimally, described test chamber comprises spill upper cover and the convex bottom of airtight cooperation with it.
Further, described air-channel system comprises main gas circuit and protection gas circuit, and described main gas circuit is by air intake opening and the gas outlet connecting sensor of solenoid valve and test chamber; Described protection gas circuit is protection bypass, and described protection bypass and main gas circuit are set up in parallel air intake opening and the gas outlet in test chamber.
Optimally, described sensing system also comprises absolute pressure sensor, and described absolute pressure sensor is arranged at outside, test chamber gas outlet, and is connected with control system.
Optimally, described air-channel system also comprises needle valve or aspiration pump, and described needle valve is arranged in the main gas circuit of connecting test chamber air intake opening; Described aspiration pump is arranged in the main gas circuit of gas outlet, connecting test chamber.
Further, described control system comprises circuit control panel and microcontroller, and described microcontroller connects respectively air-channel system, sensing system, power-supply system and display system by circuit control panel.
Optimally, the power-supply filter that described power-supply system comprises Switching Power Supply and is connected in series with Switching Power Supply.
Optimally, described display system is liquid crystal display and for the touch key-press of microcontroller parameter is set.
The chemical trace amount oxygen analyzer in the utility model provides effective prolongation sensor serviceable life, the test chamber of the dismounting easy to use by initiative holds sensor, and convenient replacement, damages or old sensor, improves the serviceable life of analyser; The utility model arranges solenoid valve and protection bypass in gas circuit, monitors the gaseous tension in test chamber by absolute pressure sensor, and control system is according to the switching of gaseous tension and oxygen concentration control solenoid valve, thus the serviceable life of greatly improving sensor.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1: the air-channel system of the utility model structure shows intention most;
Fig. 2: module diagram of the present utility model;
Fig. 3: the module diagram of the utility model embodiment 2;
Fig. 4: gas circuit structure of the present utility model.
In figure: 10, control system; 11, circuit control panel; 12, microcontroller; 20, sensing system; 21, sensor; 22, absolute pressure sensor; 30, air-channel system; 31, main gas circuit; 32, protection gas circuit; 33, aspiration pump; 34, needle valve; 40, display system; 41, liquid crystal display; 42, touch key-press; 50, power-supply system; 51, Switching Power Supply; 52, power-supply filter.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Air-channel system in conjunction with Fig. 1 the utility model structure shows intention most, Fig. 2 module diagram of the present utility model is known, effectively extend the sensor chemical trace amount oxygen analyzer in serviceable life, comprise air-channel system 30, sensing system 20, control system 10, power-supply system 50 and display system 40, described air-channel system 30 is connected with sensing system 20, control system 10 connects respectively air-channel system 30, sensing system 20, power-supply system 50 and display system 40, described sensing system 20 comprises sensor and has the test chamber of sensor 21 spatial accommodations, air intake opening and gas outlet connecting sensor 21 that described test chamber arranges, air intake opening and gas outlet are also provided with solenoid valve, described solenoid valve is connected with control system 10.Optimally, described test chamber comprises spill upper cover and the convex bottom of airtight cooperation with it.Further, described air-channel system 30 comprises main gas circuit 31 and protection gas circuit 32, and described main gas circuit 31 is by air intake opening and the gas outlet connecting sensor 21 of solenoid valve and test chamber; Described protection gas circuit 32 is protection bypass, and described protection bypass and main gas circuit 31 are set up in parallel air intake opening and the gas outlet in test chamber.Optimally, described sensing system 20 also comprises absolute pressure sensor 22, and described absolute pressure sensor 22 is arranged at outside, test chamber gas outlet, and is connected with control system 10.Optimally, described air-channel system 30 also comprises needle valve 34 or aspiration pump 35, and described needle valve 34 is arranged in the main gas circuit 31 of connecting test chamber air intake opening; Described aspiration pump 35 is arranged in the main gas circuit 31 of gas outlet, connecting test chamber.Further, described control system 10 comprises circuit control panel 11 and microcontroller 12, and described microcontroller 12 connects respectively air-channel system 30, sensing system 20, power-supply system 50 and display system 40 by circuit control panel 11.Optimally, the power-supply filter 52 that described power-supply system 50 comprises Switching Power Supply 51 and is connected in series with Switching Power Supply.Optimally, described display system 40 is for liquid crystal display 41 with for the touch key-press 42 of circuit control panel parameter is set.
The air intake opening of described test chamber is arranged at test chamber bottom, in the time that test chamber exists liquid substance, can discharge by gas outlet, can prevent that sensor 21 is immersed in fluent meterial and damages.
Described solenoid valve and protection bypass and test chamber are integral type, are realized and being connected by inner duct, reduce gas circuit tie point.
Described aspiration pump 35 is connected with test chamber, is arranged in the main gas circuit 31 of test chamber gas outlet one side, can not affect source of the gas to the impermeability between sensor 21, in the time that the pressure in air-channel system 30 is negative pressure, can bleed by aspiration pump 35.
Before needle valve 34 is placed in the air intake opening of test chamber, in the time that the gaseous tension of main gas circuit 31 is malleation, can be used for controlling gas flow, prevent that gas flow and pressure are too large, impact sensor 21.
Differential pressure pick-up 22 can be used for measuring the gas flow in gas circuit.The output signal of circuit control panel 11 acquisition and processing differential pressure pick-ups 22, passes to microcontroller 12 and calculates and provide flow indication by liquid crystal display 41, for replacing mechanical meters.
The part undesired signal of power-supply filter 52 in can filter out power, it is convenient to opening and closing instrument with power switch.And the Switching Power Supply 51 being connected in series is with it for power frequency AC being converted to low-voltage dc power supply, itself there is good filter effect, the most undesired signals in can filter out power; By improvement, innovation and the rational deployment of circuit, make instrument there is good anti-electromagnetic interference capability again.
Gas circuit structure of the present utility model can and be added and subtracted on this basis parts or change parts gas circuit structure sequentially just like eight kinds of gas circuits shown in Fig. 4 gas circuit structure of the present utility model.
Embodiment 1:
According to the chemical trace amount oxygen analyzer in the effective prolongation sensor serviceable life shown in Fig. 2 module diagram of the present utility model, form power-supply system by Switching Power Supply 51 and power-supply filter 52, filter out the undesired signal in power supply, each electricity consumption module that described power-supply system 50 is analyser provides the power supply of all size, tested gas enters in sensor 21 by air-channel system, described sensor 21 is arranged in test chamber, not only obturation effect is good, and only need rotate convex bottom and can take off convex bottom, sensor 21 just can skid off test chamber with convex bottom under Action of Gravity Field, conveniently carries out the replacement of sensor 21, tested gas at air-channel system 30 by air intake opening air inlet, given vent to anger by gas outlet, in the time that being malleation, pressure controls the flow of gas by needle valve 34, be not subject to its impact with protection sensor 21, measured in real time the force value of 30 li of air-channel systems by absolute pressure sensor 22, force value is fed back to circuit control panel 11 simultaneously, circuit control panel 11 carries out acquisition and processing to force value, pass to microcontroller 12 calculating pressure values, reduced pressure scope, if exceed pressure limit, shut electromagnetic valve is protected sensor 21, by protection gas circuit 32, protect bypass to derive gas, thereby realize the protection to sensor 21 and even oxygen analyzer.And the parameters such as the test result of the force value that absolute pressure sensor 22 is measured, sensor 21 show on liquid crystal display 41, and can the initial parameters such as pressure limit be set by touch key-press 42.
Embodiment 2:
According to the chemical trace amount oxygen analyzer in the effective prolongation sensor serviceable life shown in the module diagram of Fig. 3 the utility model embodiment 2, form power-supply system 50 by Switching Power Supply 51 and power-supply filter 52, filter out the undesired signal in power supply, each electricity consumption module that described power-supply system 50 is analyser provides the power supply of all size, tested gas enters in sensor 21 by air-channel system 30, described sensor 21 is arranged in test chamber, not only obturation effect is good, and only need rotate convex bottom and can take off convex bottom, sensor 21 just can skid off test chamber with convex bottom under Action of Gravity Field, conveniently carries out the replacement of sensor 21, tested gas at air-channel system 30 by air intake opening air inlet, given vent to anger by gas outlet, in the time that being negative pressure, source of the gas extracts sample gas by aspiration pump 35, measured in real time the force value of 30 li of air-channel systems by absolute pressure sensor 22, force value is fed back to circuit control panel 11, circuit control panel 11 carries out acquisition and processing to force value, pass to microcontroller 12 calculating pressure values, reduced pressure scope, if exceed pressure limit, shut electromagnetic valve is protected sensor 21, by protection gas circuit 32, protect bypass to derive gas, thereby realize the protection to sensor 21 and even oxygen analyzer.And the parameters such as the test result of the force value that absolute pressure sensor 22 is measured, sensor 21 show on liquid crystal display 41, and can the initial parameters such as pressure limit be set by touch key-press 42.
The chemical trace amount oxygen analyzer in the utility model provides effective prolongation sensor serviceable life, the test chamber of the dismounting easy to use by initiative holds sensor, and convenient replacement, damages or old sensor 21, improves the serviceable life of analyser; The utility model arranges solenoid valve and protection bypass in gas circuit, monitors the gaseous tension in test chamber by absolute pressure sensor 22, and control system 10 is according to the switching of gaseous tension and oxygen concentration control solenoid valve, thus the serviceable life of greatly improving sensor.
Certainly; in the situation that not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art should make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (8)
1. effectively extend the sensor chemical trace amount oxygen analyzer in serviceable life, comprise air-channel system, sensing system, control system, power-supply system and display system, described air-channel system is connected with sensing system, control system connects respectively air-channel system, sensing system, power-supply system and display system, it is characterized in that: described sensing system comprises sensor and has the test chamber of sensor spatial accommodation, air intake opening and gas outlet connecting sensor that described test chamber arranges, air intake opening and gas outlet are also provided with solenoid valve, described solenoid valve is connected with control system.
2. the chemical trace amount oxygen analyzer in effective prolongation sensor according to claim 1 serviceable life, is characterized in that: described test chamber comprises spill upper cover and the convex bottom of airtight cooperation with it.
3. the chemical trace amount oxygen analyzer in effective prolongation sensor according to claim 1 and 2 serviceable life, it is characterized in that: described air-channel system comprises main gas circuit and protection gas circuit, and described main gas circuit is by air intake opening and the gas outlet connecting sensor of solenoid valve and test chamber; Described protection gas circuit is protection bypass, and described protection bypass and main gas circuit are set up in parallel air intake opening and the gas outlet in test chamber.
4. the chemical trace amount oxygen analyzer in effective prolongation sensor according to claim 3 serviceable life, it is characterized in that: described sensing system also comprises absolute pressure sensor, described absolute pressure sensor is arranged at outside, test chamber gas outlet, and is connected with control system.
5. the chemical trace amount oxygen analyzer in effective prolongation sensor according to claim 3 serviceable life, is characterized in that: described air-channel system also comprises needle valve or aspiration pump, and described needle valve is arranged in the main gas circuit of connecting test chamber air intake opening; Described aspiration pump is arranged in the main gas circuit of gas outlet, connecting test chamber.
6. according to the chemical trace amount oxygen analyzer in the effective prolongation sensor serviceable life described in claim 4 or 5, it is characterized in that: described control system comprises circuit control panel and microcontroller, described microcontroller connects respectively air-channel system, sensing system, power-supply system and display system by circuit control panel.
7. the chemical trace amount oxygen analyzer in effective prolongation sensor according to claim 6 serviceable life, is characterized in that: the power-supply filter that described power-supply system comprises Switching Power Supply and is connected in series with Switching Power Supply.
8. the chemical trace amount oxygen analyzer in effective prolongation sensor according to claim 6 serviceable life, is characterized in that: described display system is liquid crystal display and for the touch key-press of microcontroller parameter is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320694050.5U CN203643396U (en) | 2013-11-05 | 2013-11-05 | Electrochemical trace oxygen analyzer capable of effectively prolonging service life of sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320694050.5U CN203643396U (en) | 2013-11-05 | 2013-11-05 | Electrochemical trace oxygen analyzer capable of effectively prolonging service life of sensor |
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| CN203643396U true CN203643396U (en) | 2014-06-11 |
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| CN201320694050.5U Expired - Lifetime CN203643396U (en) | 2013-11-05 | 2013-11-05 | Electrochemical trace oxygen analyzer capable of effectively prolonging service life of sensor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698380A (en) * | 2013-11-05 | 2014-04-02 | 上海昶艾科技发展有限公司 | Electrochemical trace oxygen analyzer for effectively prolonging usage life of sensor |
| CN104483457A (en) * | 2015-01-21 | 2015-04-01 | 成都昶艾电子科技有限公司 | Oxygen analyzer based on wave-soldering or reflow soldering and method for replacing sensor easy to replace thereof |
| CN111638248A (en) * | 2020-07-03 | 2020-09-08 | 成都昶艾电子科技有限公司 | High-temperature-resistant gas sensor and packaging method thereof |
| CN113834864A (en) * | 2020-06-23 | 2021-12-24 | 宝山钢铁股份有限公司 | Method for prolonging service life of electrochemical oxygen sensor for trace oxygen analyzer |
| CN114113270A (en) * | 2021-12-01 | 2022-03-01 | 广州市华粤行医疗科技有限公司 | Trace oxygen detector and detection method thereof |
-
2013
- 2013-11-05 CN CN201320694050.5U patent/CN203643396U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698380A (en) * | 2013-11-05 | 2014-04-02 | 上海昶艾科技发展有限公司 | Electrochemical trace oxygen analyzer for effectively prolonging usage life of sensor |
| CN104483457A (en) * | 2015-01-21 | 2015-04-01 | 成都昶艾电子科技有限公司 | Oxygen analyzer based on wave-soldering or reflow soldering and method for replacing sensor easy to replace thereof |
| CN104483457B (en) * | 2015-01-21 | 2016-03-23 | 成都昶艾电子科技有限公司 | Based on oxygen analyzer and the easy emat sensor replacing options thereof of wave-soldering or Reflow Soldering |
| CN113834864A (en) * | 2020-06-23 | 2021-12-24 | 宝山钢铁股份有限公司 | Method for prolonging service life of electrochemical oxygen sensor for trace oxygen analyzer |
| CN113834864B (en) * | 2020-06-23 | 2024-04-05 | 宝山钢铁股份有限公司 | Method for prolonging service life of electrochemical oxygen sensor for trace oxygen analyzer |
| CN111638248A (en) * | 2020-07-03 | 2020-09-08 | 成都昶艾电子科技有限公司 | High-temperature-resistant gas sensor and packaging method thereof |
| CN114113270A (en) * | 2021-12-01 | 2022-03-01 | 广州市华粤行医疗科技有限公司 | Trace oxygen detector and detection method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20140611 |