CN201828541U - Gas detection chamber for electrochemical gas sensor - Google Patents
Gas detection chamber for electrochemical gas sensor Download PDFInfo
- Publication number
- CN201828541U CN201828541U CN 201020577341 CN201020577341U CN201828541U CN 201828541 U CN201828541 U CN 201828541U CN 201020577341 CN201020577341 CN 201020577341 CN 201020577341 U CN201020577341 U CN 201020577341U CN 201828541 U CN201828541 U CN 201828541U
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- gas
- sensor
- air chamber
- chamber
- electrochemical
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Abstract
The utility model discloses a gas detection chamber for an electrochemical gas sensor, comprising a sealing block (2) and a sensor (3), wherein the sealing block (2) is vertically provided with a hole-shaped gas chamber (5) and horizontally provided with a gas passageway communicated with the gas chamber; two ends of the gas passageway are connected with gas joints (1); and the sensor (3) is arranged above the gas chamber (5). The gas detection chamber for the electrochemical gas sensor is characterized in that the gas chamber (5) is internally provided with a gas guide piece (4), the cross section of which is cross-shaped, so that when encountering the gas guide piece (4) after entering the gas passageway, gas can change the direction to flow towards the sensor (3), return from the surface of the sensor (3) and then flow out from the other end of the gas passageway. For the gas detection chamber, the respond time of the sensor is greatly shortened, the final signal output quality of the sensor is more stable, the replacement is convenient and the cost is low.
Description
Technical field
The utility model relates to electrochemical gas sensor gas detection air chamber, especially has the air chamber of stator blade.
Background technology
Flue gas analyzer is to boiler flue harmful gas such as SO
2, oxygen level is monitored in NO, CO etc. and the flue gas instrument.Electrochemical gas sensor is the core component of flue gas analyzer, and gas sensor commonly used mostly is electrochemical sensor.The electrochemical gas sensor performance is more stable, and the life-span is longer, and is fast to the gas response, is not subjected to the influence of humidity, and resolution is generally up to 0.1 μ mol/mol.The former design of electrochemical gas sensor air chamber (as shown in Figure 3) mainly relies on the diffusion of air-flow that test gas is contacted with the sensor sensing face in the flue gas analyzer.Find in the practical application to rely on diffusion that gas is contacted with the sensor sensing face, the sensor response time is longer; And the inner no diversion Design of air chamber causes air-flow the turbulent flow phenomenon to occur in air chamber, and these factors cause the sensor response blunt and unstable.
The utility model content
It is that dependence is spread and caused sensor to respond blunt and problem of unstable that the purpose of this utility model solves exactly that existing electrochemical gas sensor contact with sensor with gas detection air chamber gas.
The technical solution adopted in the utility model is: electrochemical gas sensor gas detection air chamber, it comprises sealing block and the sensor that vertically is provided with hole shape air chamber, sealing block laterally is provided with the gas passage that is connected with air chamber, the two ends of gas passage are connected with gas connection, sensor is installed in the air chamber top, it is characterized in that being provided with stator blade in the described air chamber, the xsect of stator blade is a cruciform, after air-flow is entered from gas passage, meet stator blade and change the direction flow direction sensor, return from the other end of gas channel from sensor surface again and flow out.
Adopt technique scheme, owing to the effect of stator blade, changed the direction of air-flow, make the direct flow direction sensor of air-flow, sensor just can not produce the blunt and problem of unstable of response like this.
The utility model beneficial effect is: 1. the sensor response time shortens dramatically, and is better than the requirement of national Specification greatly; 2. the air chamber internal gas flow is stable, and sensor final output signal quality is also comparatively stable.
3. the utility model extendability is strong, as long as change interface thread, applicable to all gases detecting sensor.4. corrosion resistance is strong, changes convenient (sensor is connected with air chamber by screw thread), and is with low cost.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the front view of stator blade.
Fig. 3 is the vertical view of Fig. 2.
Among the figure, 1, gas connection, 2, seal, 3, sensor, 4, stator blade, 5, air chamber.
Embodiment
Present embodiment electrochemical gas sensor gas detection air chamber, as shown in Figure 1, it comprises sealing block 2 and the sensor 3 that vertically is provided with hole shape air chamber 5, sealing block 2 laterally is provided with the gas passage that is connected with air chamber, the two ends of gas passage are connected with gas connection 1, sensor 3 is installed in air chamber 5 tops, be provided with stator blade 4 in the described air chamber 5, stator blade 4 is as Fig. 2, shown in Figure 3, its xsect is a cruciform, after air-flow is entered from gas passage, meet stator blade 4 and change direction flow direction sensor 3, return from sensor 3 surfaces again from the other end of gas channel and flow out.
Claims (1)
1. electrochemical gas sensor gas detection air chamber, it comprises sealing block [2] and the sensor [3] that vertically is provided with hole shape air chamber [5], sealing block [2] laterally is provided with the gas passage that is connected with air chamber, the two ends of gas passage are connected with gas connection [1], sensor [3] is installed in air chamber [5] top, it is characterized in that being provided with in the described air chamber [5] stator blade [4], the xsect of stator blade [4] is a cruciform, after air-flow is entered from gas passage, meet stator blade [4] and change direction flow direction sensor [3], return from sensor [3] surface again from the other end of gas channel and flow out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020577341 CN201828541U (en) | 2010-10-26 | 2010-10-26 | Gas detection chamber for electrochemical gas sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020577341 CN201828541U (en) | 2010-10-26 | 2010-10-26 | Gas detection chamber for electrochemical gas sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201828541U true CN201828541U (en) | 2011-05-11 |
Family
ID=43967067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020577341 Expired - Fee Related CN201828541U (en) | 2010-10-26 | 2010-10-26 | Gas detection chamber for electrochemical gas sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201828541U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954733A (en) * | 2014-05-07 | 2014-07-30 | 广西玉柴机器股份有限公司 | Detection tool of gas sensor |
| CN105606667A (en) * | 2015-10-16 | 2016-05-25 | 上海纳米技术及应用国家工程研究中心有限公司 | Low-concentration air pollutant comprehensive detection system |
| CN112730546A (en) * | 2020-12-28 | 2021-04-30 | 武汉理工大学 | Portable flue gas analysis device |
| WO2021129840A1 (en) * | 2019-12-26 | 2021-07-01 | 四方光电股份有限公司 | Ultrasonic gas sensor |
-
2010
- 2010-10-26 CN CN 201020577341 patent/CN201828541U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954733A (en) * | 2014-05-07 | 2014-07-30 | 广西玉柴机器股份有限公司 | Detection tool of gas sensor |
| CN103954733B (en) * | 2014-05-07 | 2016-04-27 | 广西玉柴机器股份有限公司 | The detection frock of gas sensor |
| CN105606667A (en) * | 2015-10-16 | 2016-05-25 | 上海纳米技术及应用国家工程研究中心有限公司 | Low-concentration air pollutant comprehensive detection system |
| WO2021129840A1 (en) * | 2019-12-26 | 2021-07-01 | 四方光电股份有限公司 | Ultrasonic gas sensor |
| CN112730546A (en) * | 2020-12-28 | 2021-04-30 | 武汉理工大学 | Portable flue gas analysis device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20131026 |