CN2886575Y - A probe of gas detector - Google Patents
A probe of gas detector Download PDFInfo
- Publication number
- CN2886575Y CN2886575Y CN 200620102486 CN200620102486U CN2886575Y CN 2886575 Y CN2886575 Y CN 2886575Y CN 200620102486 CN200620102486 CN 200620102486 CN 200620102486 U CN200620102486 U CN 200620102486U CN 2886575 Y CN2886575 Y CN 2886575Y
- Authority
- CN
- China
- Prior art keywords
- gas
- air cavity
- probe
- detecting instrument
- sensor
- 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
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
The utility model discloses a probe in a gas detector provided with a sensor and a testing air cavity, which overcomes the shortcomings in the probe of the prior art that the gas concentration in the exterior environment is unable to be detect in real time due to the gas in the testing air cavity unable to be renewed, thereby the testing result is not accurate. The probe is principally mounted on the gas detector for detecting and analyzing the gas concentration in the field in real time, the probe of the gas detector is principally composed of a shell and a sensor, the shell is provided with a testing air cavity and a conducting wire channel and the sensor is disposed in the testing air cavity, wherein the testing air cavity comprises an air inlet and an air outlet which is positioned on the upper of the air inlet. The utility model has the principal advantage of enabling the gas in the testing air cavity be renewed in time, thereby the testing result is more reliable.
Description
Technical field
The utility model relates to a kind of probe of gas detecting instrument, particularly a kind of probe that is provided with the gas detecting instrument of sensor and test air cavity, and it mainly is installed on the gas detecting instrument to be used for the real-time detection and the analysis of gas on-site concentration.
Background technology
Traditional inflammable gas, toxic gas and other volatile organic compounds detectors can detect the concentration of inflammable gas in the atmospheric environment, toxic gas, other volatile organic compoundses in real time and send alerting signal according to setting.Such gas detecting instrument is widely used in fields such as modern industry, scientific research, environmental protection.The above-mentioned gas detector can be made up of main part and probe, and wherein, the structure of the probe of gas detecting instrument can mainly comprise housing 1 ', test air cavity 2 ', sensor 4 ' and conductor wire passage 6 ' referring to Fig. 1.Wherein, test air cavity 2 ' has a gas inlet and outlet 3 ', and sensor 4 ' places in the test air cavity 2 ' and is fixed on the housing 1 ', is connected with conductor wire 5 ' on the sensor 4 ', and the other end of this conductor wire 5 ' passes the conductor wire passage 6 ' in the housing 1 '.The probe of this gas detecting instrument can be electrically connected by the main part (in the drawings do not illustrate) of conductor wire 5 ' with gas detecting instrument, and by the main part thread connection of the shank on the housing 1 ' 7 ' with gas detecting instrument, the complete gas detecting instrument of common thus formation.
The above-mentioned gas detector is installed in the atmospheric environment usually, is fixed on the fixtures such as wall or pipeline, and the gas inlet and outlet 3 ' direction of popping one's head in during installation down.The principle of work of this gas detecting instrument is, gas in the atmospheric environment enters in the test air cavity 2 ', the sensor 4 ' of probe utilizes catalytic combustion or electrochemical principle, optical absorption principle or other principles can obtain its concentration signal, detect the concentration of combustible gas, toxic gas, other volatile organic compoundses, and this concentration signal is sent to the DCS or the Displaying Meter of the main part of gas detecting instrument.Its measurement result is normally used for aspects such as fire-fighting control, safety guarantee.
Yet, gas in the test cavity of traditional gas detecting instrument carries out air inlet and exhaust via same gas inlet and outlet 3 ', after ambient atmos enters test air cavity 2 ', because sensor 4 ' and assembly thereof are originally as heater element, the gas temperature that can generate heat gradually after their work a period of times and cause testing in the air cavity 2 ' raises, make and test the gas rising in the air cavity 2 ' and can't discharge cavity from original gas inlet and outlet 3 ' timely and effectively, cause the gas in the test air cavity 2 ' can not detect the gas concentration of external environment condition in real time, make test result inaccurate because of upgrading in time.
The utility model content
Technical problem to be solved in the utility model provides a kind of gas that can promote to test in the air cavity and upgrades, makes the test result probe of gas detecting instrument more reliably in time.
The technical scheme that its technical matters that solves the utility model adopts is: the probe of this gas detecting instrument mainly comprises housing and sensor, described housing is provided with test air cavity and conductor wire passage, described sensor places in the test air cavity, wherein, the test air cavity comprises air intake opening and gas outlet, and described gas outlet is positioned at the top of air intake opening.
As a kind of improvement of the present utility model, also be provided with heating arrangement in the described test air cavity, with the convection current that promotes the sample gas in the test air cavity with upgrade in time.
As further improvement of the utility model, this probe also comprises sensor base, and described sensor base is fixed on the described housing, and described sensor and heating arrangement are fixed on this sensor base.
As another kind of improvement the of the present utility model, also be provided with the air inlet net on the described housing and the net of giving vent to anger, wherein, the air inlet net places the air intake opening place of described test air cavity, and the net of giving vent to anger places the place, gas outlet of described test air cavity.
Preferred version as technique scheme, as far as possible in time discharge for impelling the gas in the described test air cavity from the gas outlet, its end near the test air cavity also is provided with packoff in the described conductor wire passage of the above-mentioned any technical scheme of the utility model, preventing that sample gas from entering this conductor wire passage, and can avoid this conductor wire passage to form the gas dead band.
Compared with prior art, the utility model has the advantages that: (1) is owing to the gas in the test air cavity of probe passes in and out respectively via air intake opening and gas outlet, form gaseous exchange, promoted to test upgrading in time of the interior gas of air cavity, thereby can detect the gas-condition of external environment condition timely and effectively, make test result more reliable.(2) owing to also be provided with heating arrangement in the test air cavity of probe, thereby the convection current of gas in can the accelerated test air cavity, impel turnover, the renewal of gas in the test air cavity, thereby obtain the true and reliable real-time testing result of external environment condition gas.(3) because inherent its that end near the test air cavity of conductor wire passage also is provided with packoff, it not only can prevent that gas enters gas detecting instrument via the conductor wire passage main part from damaging, and can impel gas to discharge from the gas outlet as far as possible, thereby promote the convection current and the renewal of gas in the test air cavity, further to guarantee to obtain the true and reliable real-time testing result of external environment condition gas.(4) owing to be provided with the air inlet net and the net of giving vent to anger at air intake opening and place, gas outlet respectively, can prevent that dust, suspension, particle or other pollution impurity in the external environment condition from entering the test air cavity and Interference Detection, thereby avoid reliability of testing result is brought adverse effect; In addition, can also avoid above-mentioned pollution impurity to enter test air cavity damage sensor, thereby prolong the life-span of sensor and guarantee reliability of testing result.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structure cross-sectional schematic of the probe of gas detecting instrument in the prior art;
Fig. 2 is the structure cross-sectional schematic of the utility model probe among the embodiment 1;
Fig. 3 is the structure cross-sectional schematic of the utility model probe among the embodiment 2;
Fig. 4 is the electrical schematic diagram of heating arrangement of the present utility model among the embodiment 2;
Fig. 5 is the structure cross-sectional schematic of the utility model probe among the embodiment 3;
Fig. 6 is as the structural drawing of the printed circuit board of heating arrangement of the present utility model among the embodiment 3.
Embodiment
Embodiment 1:
Referring to Fig. 2, the probe of the gas detecting instrument in the present embodiment mainly is made up of housing 1, test air cavity 2, sensor 4 and conductor wire passage 6; Wherein, test air cavity 2 comprises an air intake opening 3 and two gas outlets 8, promptly have air intake opening 3 and gas outlet 8 on this housing 1 its bottom and top near test air cavity 2, and gas outlet 8 is positioned at the top of air intake opening 3, so that extraneous sample gas can enter test air cavity 2 from air intake opening 3, then discharge via gas outlet 8 again, thereby make the gas in the test air cavity 2 form convection current, promoted the upgrading in time of sample gas in the test air cavity 2 effectively, so that can detect the gas changing condition of external environment condition timely and effectively in real time, make test result more accurate, reliably.In addition, sensor 4 places in the test air cavity 2, and sensor 4 is fixedly mounted on the housing 1.Be connected with conductor wire 5 on the sensor 4, the other end of this conductor wire 5 passes the conductor wire passage 6 in the housing 1.The probe of the gas detecting instrument in the present embodiment can be electrically connected with the main part (not illustrating in the drawings) of gas detecting instrument after passing conductor wire passage 6 by conductor wire 5, and by the shank 7 of housing 1 and the main part thread connection of gas detecting instrument, the complete gas detecting instrument (not illustrating in the drawings) of common thus formation.
Embodiment 2:
As shown in Figure 3, the difference of the probe of the gas detecting instrument in the present embodiment and embodiment 1 mainly is: the probe in the present embodiment also comprises sensor base 9, and this sensor base 9 is fixedly mounted on the housing 1.The installation site of sensor base 9 preferably is in the porch of conductor wire passage 6 as shown in Figure 3, can stop to a certain extent that like this sample gas in the test air cavity 2 flows into conductor wire passage 6, gas is discharged via gas outlet 8 in time, as best one can test air cavity 2, thereby promote flowing and renewal of sample gas, help detecting timely and effectively the gas-condition of external environment condition.Sensor 4 is fixedly mounted on the sensor base 9.Be connected with conductor wire 5 on the sensor 4.In addition, its that end near test air cavity 2 also is equipped with O-ring seal 10 in conductor wire passage 6, like this, not only can prevent that gas from damaging via the main part that conductor wire passage 6 enters gas detecting instrument, but also can impel gas in time, 8 discharge from the gas outlet as much as possible, thereby promote the convection current and the renewal of the gas in the test air cavity 2, further to guarantee to obtain the true and reliable real-time testing result of external environment condition gas.
In addition, for promoting to test the convection current of the gas in the air cavity 2 and upgrade in time, also be provided with heating arrangement 11 in the test air cavity 2 in the present embodiment, this heating arrangement 11 is fixedly mounted on the sensor base 9.The electrical schematic diagram of this heating arrangement 11 can be as shown in Figure 4, and it is to utilize the heating element energising back heating in the heating arrangement to come the gas in the test air cavity 2 is heated.In the present embodiment, the heating element in the heating arrangement 11 is resistance R 1, R2, R3 and R4 parallel with one another.
Need to prove that heating arrangement 11 can be in any suitable position of testing in the air cavity 2, as long as can promote the gaseous exchange in the test air cavity 2 and make gas 8 discharges from the gas outlet.But test air cavity 2 interior sample gas are tried one's best in order to make, 8 discharges from the gas outlet in time, and 8 residing positions, gas outlet preferably are higher than or a little higher than heating arrangement 11 residing positions.
In the present embodiment, the conductor wire 5 that connects on the sensor 4 passes sensor base 9 and O-ring seal 10 successively after can be electrically connected with the main part (not illustrating in the drawings) of gas detecting instrument by conductor wire passage 6, and by the main part thread connection of the shank on the housing 17 with gas detecting instrument, the complete gas detecting instrument (not illustrating in the drawings) of common thus formation.
It is pointed out that O-ring seal 10 can have a plurality of for better sealing effectiveness is arranged.
Embodiment 3:
The structure of the probe of the gas detecting instrument in the present embodiment as shown in Figure 5, except having housing 1, test air cavity 2, sensor 4, conductor wire 5, conductor wire passage 6, sensor base 9 and heating arrangement (not shown in Figure 5), its set packoff of that end near test air cavity 2 is an embedding glue-line 12 in conductor wire passage 6, and described conductor wire 5 passes sensor base 9 and this embedding glue-line 12.Described test air cavity 2 is provided with air intake opening 3 and gas outlet 8, and gas outlet 8 is positioned at the top of air intake opening 3.In addition, air intake opening 3 places at described test air cavity 2 also are provided with air inlet net 13,8 places, gas outlet at described test air cavity then are provided with the net 14 of giving vent to anger, its objective is for the dust that prevents external environment condition and other pollute impurity to enter in the test air cavity 2 and influence reliability of testing result, can avoid above-mentioned pollution impurity damage sensor 4 in addition.As seen, the setting of the air inlet net 13 and the net 14 of giving vent to anger makes the structure of probe of the utility model gas detecting instrument more reasonable, and is more reliable to the testing result of outside environmental gas.As a kind of preferred implementation of the present utility model, the heating arrangement in the present embodiment can be one and have the printed circuit board of circuit structure as shown in Figure 6 that this printed circuit board (not shown in Figure 5) is fixedly mounted on the sensor base 9.The principle of work of this printed circuit board is identical with heating arrangement among the embodiment 2, also is to utilize energising back resistance heating to heat sample gas in the test air cavity 2, promotes the convection current of sample gas and upgrades in time.
In the present embodiment, the probe of gas detecting instrument can pass sensor base 9 and embedding glue-line 12 after be electrically connected by the main part (not illustrating in the drawings) of conductor wire passage 6 with gas detecting instrument by its conductor wire 5, and by the main part thread connection of the shank on the housing 17 with gas detecting instrument, the complete gas detecting instrument (not illustrating in the drawings) of common thus formation.
It is to be noted, Fig. 2, Fig. 3 and Fig. 5 have just disclosed wherein a kind of mode of air intake opening 3 and 8 present positions, gas outlet, the air intake opening of the probe of the utility model gas detecting instrument and present position, gas outlet are not limited in this mode, test effective convection current of gas in the air cavity 2 and upgrade as long as can realize; In addition, the number of described air intake opening and gas outlet can be respectively one or respectively have a plurality of.
In addition, described conductor wire 5 passes the connected mode of housing 1 and the main part of gas detecting instrument except can welding, and can also be other suitable electric connecting modes; The connecting mode of the shank 7 of housing 1 and the main part of gas detecting instrument can also be to weld together except being the thread connection as indicated above, also can be any other suitable connecting mode.
Heating element in the heating arrangement described in the utility model connecting mode each other can be series connection and/or in parallel.Described heating arrangement on can being installed in sensor base 9, it also can not be installed in other suitable location that are arranged on the sensor base 9 in the test air cavity 2, promotes the gaseous exchange in the test air cavity 2 and the sample gas in the test air cavity 2 is discharged by gas outlet 8 as far as possible as long as it can play.
Claims (6)
1, a kind of probe of gas detecting instrument, it comprises housing and sensor, and described housing is provided with test air cavity and conductor wire passage, and described sensor places in the test air cavity, it is characterized in that: described test air cavity comprises air intake opening and gas outlet, and described gas outlet is positioned at the top of air intake opening.
2, the probe of gas detecting instrument according to claim 1 is characterized in that: also be provided with heating arrangement in the described test air cavity.
3, the probe of gas detecting instrument according to claim 2 is characterized in that: this probe also comprises sensor base, and described sensor base is fixed on the described housing, and described sensor and heating arrangement are fixed on this sensor base.
4, according to the probe of any one described gas detecting instrument in the claim 1 to 3, it is characterized in that: also be provided with the air inlet net on the described housing and the net of giving vent to anger, described air inlet net places the air intake opening place of described test air cavity, and the described net of giving vent to anger places the place, gas outlet of described test air cavity.
5, according to the probe of any one described gas detecting instrument in the claim 1 to 3, it is characterized in that: its end near the test air cavity also is provided with packoff in the described conductor wire passage.
6, the probe of gas detecting instrument according to claim 4 is characterized in that: its end near the test air cavity also is provided with packoff in the described conductor wire passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620102486 CN2886575Y (en) | 2006-04-10 | 2006-04-10 | A probe of gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620102486 CN2886575Y (en) | 2006-04-10 | 2006-04-10 | A probe of gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886575Y true CN2886575Y (en) | 2007-04-04 |
Family
ID=37961664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620102486 Expired - Fee Related CN2886575Y (en) | 2006-04-10 | 2006-04-10 | A probe of gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2886575Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384360A (en) * | 2011-05-09 | 2012-03-21 | 惠州市马可尼电子有限公司 | Mine lamp with functions of displaying carbon monoxide concentration in digitized way, detecting carbon monoxide concentration and alarming |
| CN103115856A (en) * | 2013-02-16 | 2013-05-22 | 南京贝思兰信息技术有限公司 | Detection probe of oil fume concentration |
| CN103543476A (en) * | 2013-10-12 | 2014-01-29 | 浙江卷积科技有限公司 | Explosive and drug detector |
| CN104596973A (en) * | 2015-01-27 | 2015-05-06 | 重庆蓝图信息产业股份有限公司 | Gas sensor and method for detecting concentration of methane gas in septic tank by using gas sensor |
| CN108658639A (en) * | 2018-08-20 | 2018-10-16 | 中国科学院地理科学与资源研究所 | A kind of organic waste aerobic fermentation biochemical reaction kinetics in-situ monitoring device |
| CN109115259A (en) * | 2018-09-06 | 2019-01-01 | 汉威科技集团股份有限公司 | A kind of standard gas conveying device |
-
2006
- 2006-04-10 CN CN 200620102486 patent/CN2886575Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384360A (en) * | 2011-05-09 | 2012-03-21 | 惠州市马可尼电子有限公司 | Mine lamp with functions of displaying carbon monoxide concentration in digitized way, detecting carbon monoxide concentration and alarming |
| CN103115856A (en) * | 2013-02-16 | 2013-05-22 | 南京贝思兰信息技术有限公司 | Detection probe of oil fume concentration |
| CN103543476A (en) * | 2013-10-12 | 2014-01-29 | 浙江卷积科技有限公司 | Explosive and drug detector |
| CN104596973A (en) * | 2015-01-27 | 2015-05-06 | 重庆蓝图信息产业股份有限公司 | Gas sensor and method for detecting concentration of methane gas in septic tank by using gas sensor |
| CN104596973B (en) * | 2015-01-27 | 2017-04-26 | 重庆蓝图信息产业股份有限公司 | Gas sensor and method for detecting concentration of methane gas in septic tank by using gas sensor |
| CN108658639A (en) * | 2018-08-20 | 2018-10-16 | 中国科学院地理科学与资源研究所 | A kind of organic waste aerobic fermentation biochemical reaction kinetics in-situ monitoring device |
| CN109115259A (en) * | 2018-09-06 | 2019-01-01 | 汉威科技集团股份有限公司 | A kind of standard gas conveying device |
| CN109115259B (en) * | 2018-09-06 | 2024-03-15 | 汉威科技集团股份有限公司 | Standard gas conveying device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2886575Y (en) | A probe of gas detector | |
| CN105675810A (en) | System and method for monitoring high-temperature corrosive atmosphere of water cooling wall of boiler | |
| CN208420820U (en) | Small-sized building material product monomer burning test device | |
| CN1731154A (en) | Underwater real-time optical dissolved oxygen measuring device | |
| CN1270178C (en) | A fire hazard detecting integrated model experiment checkout apparatus | |
| CN2581986Y (en) | Sample burner for analyzing organic element content | |
| CN208818670U (en) | A kind of portable dual oxide zirconium probe flue gas humidity monitoring device | |
| CN214408272U (en) | Flue gas determination and analysis device | |
| CN200972474Y (en) | Continuosu monitoring system for smoke discharge | |
| CN2685875Y (en) | Integral Zirconia smoke oxygen analyzer | |
| CN2909252Y (en) | Investigating device of oxygen sensor | |
| CN104655177A (en) | Continuous emission monitoring system | |
| CN2695969Y (en) | Integral zirconium oxide smoke oxygen analyzer | |
| CN209014506U (en) | Lambda sensor test macro | |
| CN202393761U (en) | Low concentration methane sensor for coal mine | |
| CN1301403C (en) | Probe structure and multipoint gas detector | |
| CN103398928B (en) | Degradation early-warming apparatus for diesel engine emission | |
| CN2729720Y (en) | Probe of sensor and multipoint investigator | |
| CN111207793A (en) | Cable tunnel environment monitoring device and system | |
| CN220751526U (en) | Multifunctional detection device for air inlet manifold | |
| CN218885561U (en) | Sensor device capable of detecting concentration of air pollutants in real time | |
| CN220084820U (en) | High-temperature direct-insertion type flue gas CO analyzer | |
| CN101504151B (en) | Mounting process for boiler oxygen content test system | |
| CN203376237U (en) | Emission degradation early-warning device for diesel engine | |
| CN214893441U (en) | Ambient air quality automatic monitoring equipment convenient to equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU LEITAI AUTOMATION INSTRUMENT CO.,LTD. Free format text: FORMER OWNER: HANGZHOU LASERTEK INC. Effective date: 20080509 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080509 Address after: Building 3, building 6, No. 88, Jiangling Road, Binjiang District, Zhejiang, Hangzhou Province, 310051 Patentee after: Hangzhou Leitai Automation Instrument Co., Ltd. Address before: Hangzhou City, Zhejiang Province, Binjiang District Jiangnan Road No. 3786 Qi technology building seven floor, zip code: 310053 Patentee before: Hangzhou Lasertek Inc. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070404 |