CN204679416U - A kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS - Google Patents
A kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS Download PDFInfo
- Publication number
- CN204679416U CN204679416U CN201520390318.5U CN201520390318U CN204679416U CN 204679416 U CN204679416 U CN 204679416U CN 201520390318 U CN201520390318 U CN 201520390318U CN 204679416 U CN204679416 U CN 204679416U
- Authority
- CN
- China
- Prior art keywords
- tdlas
- gas
- drainage pipeline
- power management
- pipeline networks
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS, comprise TDLAS monitoring system, also comprise gas absorption chamber, laser instrument, Power Management Unit and MCU control unit, the two ends of gas absorption chamber are respectively arranged with collimating mirror and photodetector, collimating mirror is connected with laser instrument, TDLAS monitoring system is connected with laser instrument, photodetector, Power Management Unit and MCU control unit respectively, and Power Management Unit is connected with TDLAS monitoring system.The utility model is owing to have employed the gas detection technology based on TDLAS, and achieve the detection to different poisonous and harmful inflammable gas, precision is high, and distinction is good, easy to maintenance, drastically increases the practicality of drainage pipeline networks gas detect.
Description
Technical field
The utility model relates to municipal drainage pipe network monitoring field, particularly relates to a kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS, is applicable to drainage pipeline networks down-hole poisonous and harmful combustable gas concentration and detects.
Background technology
Along with urbanization speed is accelerated, newly-built road constantly goes into operation, and drainage pipeline networks, as wherein important ingredient, plays indispensable role.Urban drainage pipe network is important urban infrastructure, is the major project that dry days are transported sewage and rainy day water drainage in city.The running status of pumping equipment will directly have influence on the daily life of city image and city dweller.
In order to ensure that drainage pipeline networks runs safely and effectively.Be necessary the running status understanding pipe network, the poisonous and harmful inflammable gas under Real-Time Monitoring well lid is by extremely important.Traditional method is by catalytic combustion method gas sensor, electrochemical gas sensor monitoring toxic and harmful concentration, because catalytic combustion method gas sensor is within the scope of inflammable gas, and non-selectivity.And dying fire work, there is the danger of ignition; And the gas detector life-span of electric chemical formula is short, needs calibration zeroing at set intervals, safeguard very inconvenient; And when concentration over-standard under well lid, find if unmanned, will huge hidden danger be produced.
Utility model content
The purpose of this utility model is the problems referred to above existed for prior art, proposes a kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS.To carrying out on-line monitoring, to ensure that drainage pipeline networks runs safely and effectively as poisonous and harmful inflammable gass such as high concentration carbon dioxide, carbon monoxide, ammonia, methane, sulfuretted hydrogen, sulphuric dioxide under well lid.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
A kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS, comprise TDLAS monitoring system, also comprise gas absorption chamber, laser instrument, Power Management Unit and MCU control unit, the two ends of gas absorption chamber are respectively arranged with collimating mirror and photodetector, collimating mirror is connected with laser instrument, TDLAS monitoring system is connected with laser instrument, photodetector, Power Management Unit and MCU control unit respectively, and Power Management Unit is connected with TDLAS monitoring system.
Based on a drainage pipeline networks On-Line Monitor Device of Gas of TDLAS, also comprise GPRS/GSM wireless data transmission unit, GPRS/GSM wireless data transmission unit is connected with Power Management Unit and MCU control unit respectively.
The utility model compared with prior art, has the following advantages:
Compared with existing drainage pipeline networks gas detection technology, the utility model, owing to have employed the gas detection technology based on TDLAS, achieves the detection to different poisonous and harmful inflammable gas, precision is high, distinction is good, easy to maintenance, drastically increases the practicality of drainage pipeline networks gas detect.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present utility model.
In figure: 1-collimating mirror; 2-single-mode fiber; 3-laser instrument; 4-photodetector; 5-TDLAS supervisory system; 6-GPRS/GSM wireless data transmission unit; 7-MCU control module; 8-gas absorption chamber.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
As shown in Figure 1: a kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS, comprise TDLAS monitoring system 5, also comprise gas absorption chamber 8, laser instrument 3, Power Management Unit 9 and MCU control unit 7, the two ends of gas absorption chamber 8 are respectively arranged with collimating mirror 1 and photodetector 4, collimating mirror 1 is connected with laser instrument 3, TDLAS monitoring system 5 is connected with laser instrument 3, photodetector 4, Power Management Unit 9 and MCU control unit 7 respectively, and Power Management Unit 9 is connected with TDLAS monitoring system 5.
Preferably, a kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS, also comprises GPRS/GSM wireless data transmission unit 6, GPRS/GSM wireless data transmission unit 6 and is connected with Power Management Unit 9 and MCU control unit 7 respectively.
Wherein, MCU control unit 7 can adopt low-power consumption arm processor, runs under idle condition with extremely low power consumption, and timing wake-up at a certain time interval, provide power supply to TDLAS supervisory system 5 by Power Management Unit 9 after waking up.Power Management Unit 9 can adopt the supply module of Control, also can adopt the supply module with arousal function.Gas absorption chamber 8 is that one makes light pass tested gas along pre-determined route, makes the absorbed device of partial spectrum; TDLAS supervisory system 5 controls pulsed modulation light that laser instrument 3 sends by the gas absorption chamber 8 of single-mode fiber 2 through each gas detect point, this light pulse signal turns back to photodetector 4, be converted into corresponding current signal, this current signal processes through TDLAS detection system 5.Light intensity according to gas absorption wavelength can decay because of absorption, and damping capacity is directly proportional to the path of optical fiber in the indoor experience of gas absorption, thus calculates gas concentration; MCU control unit 7 uploads to remote monitoring platform by GPRS/GSM wireless data transmission unit after reading the gas concentration after the computing of TDLAS detection system, realizes the on-line real-time measuremen to drainage pipeline networks down-hole toxic and harmful concentration.TDLAS supervisory system 5 model can adopt the QGX104CH4-A-01 (laser gas detector) of Wuhan Xin Feng Electro-optical Technology, INC. (US) 62 Martin Road, Concord, Massachusetts 017, has measuring speed fast, highly sensitive, can accurate measure gas concentrations, completely without interruption gases affect.Long-Time Service without drift, without the need to regular zeroing.Well solving drainage pipeline networks mine gas Concentration Testing adopts the life-span of traditional electrochemical test, catalytic combustion method gas sensor short, the shortcoming that precision is low, maintenance is inconvenient.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (2)
1. the drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS, comprise TDLAS monitoring system (5), it is characterized in that, also comprise gas absorption chamber (8), laser instrument (3), Power Management Unit (9) and MCU control unit (7), the two ends of gas absorption chamber (8) are respectively arranged with collimating mirror (1) and photodetector (4), collimating mirror (1) is connected with laser instrument (3), TDLAS monitoring system (5) respectively with laser instrument (3), photodetector (4), Power Management Unit (9) is connected with MCU control unit (7), Power Management Unit (9) is connected with TDLAS monitoring system (5).
2. a kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS according to claim 1, it is characterized in that, also comprise GPRS/GSM wireless data transmission unit (6), GPRS/GSM wireless data transmission unit (6) is connected with Power Management Unit (9) and MCU control unit (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390318.5U CN204679416U (en) | 2015-06-08 | 2015-06-08 | A kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390318.5U CN204679416U (en) | 2015-06-08 | 2015-06-08 | A kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204679416U true CN204679416U (en) | 2015-09-30 |
Family
ID=54179099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520390318.5U Active CN204679416U (en) | 2015-06-08 | 2015-06-08 | A kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204679416U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478600A (en) * | 2017-09-11 | 2017-12-15 | 常州杰泰克节能科技有限公司 | Harmful gas concentration detecting system and its detection method |
| CN107741590A (en) * | 2017-01-17 | 2018-02-27 | 喻雯婷 | A kind of distributed water quality monitoring system and detection method |
| CN111650341A (en) * | 2020-06-19 | 2020-09-11 | 清华大学 | Online monitoring system for gas-phase pollutants of drainage pipe network |
-
2015
- 2015-06-08 CN CN201520390318.5U patent/CN204679416U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741590A (en) * | 2017-01-17 | 2018-02-27 | 喻雯婷 | A kind of distributed water quality monitoring system and detection method |
| CN107741590B (en) * | 2017-01-17 | 2021-06-25 | 喻雯婷 | Distributed water quality monitoring system and detection method |
| CN107478600A (en) * | 2017-09-11 | 2017-12-15 | 常州杰泰克节能科技有限公司 | Harmful gas concentration detecting system and its detection method |
| CN111650341A (en) * | 2020-06-19 | 2020-09-11 | 清华大学 | Online monitoring system for gas-phase pollutants of drainage pipe network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204679416U (en) | A kind of drainage pipeline networks On-Line Monitor Device of Gas based on TDLAS | |
| CN204439537U (en) | Based on the gas analyzer measurement mechanism of ultraviolet difference algorithm | |
| CN104914066A (en) | Detection device of dissolved gases in transformer oil based on infrared spectrum absorption | |
| CN106442370A (en) | On-line water quality detector and on-line water quality detecting method | |
| CN203324179U (en) | High-sensitivity portable gas detection instrument based on NDIR (Non-Dispersive Infra-Red) principle | |
| CN103364530B (en) | Remote gas monitoring system and method | |
| CN204731157U (en) | Infrared methane sensor | |
| CN105424651A (en) | Locatable methane leakage monitoring system | |
| CN203299187U (en) | Poisonous and harmful gas test box | |
| CN103364365A (en) | WSN (Wireless Sensor Network) sensor node for natural gas content in air | |
| CN204703959U (en) | Multiparameter gas determinator | |
| CN203929625U (en) | The automatic calibration device of motor-vehicle tail-gas Remote Sensing Testing System | |
| CN105021568A (en) | Methane gas concentration detection device based on multi-mode laser spectrum technology | |
| CN202285017U (en) | On-line methane monitoring analyzer | |
| CN105044033A (en) | Intensity-demodulation optical fiber gas sensing device | |
| CN202119710U (en) | Exhaust gas emission monitoring probe device | |
| CN201689032U (en) | Greenhouse gas on-line monitoring instrument | |
| Li et al. | Infrared gas sensor | |
| CN105334178A (en) | Harmful gas monitoring system based on detection rectifying circuit | |
| CN102954949A (en) | System with multi-channel networkings for simultaneous monitoring on coal mine gas concentration | |
| CN205484032U (en) | Methane leak detection system that can fix a position | |
| CN214066929U (en) | Monitoring system is revealed to methane based on TDLAS technique | |
| CN205982088U (en) | Aquatic organic matter content on -line measuring and filter core / membrane punctures device of early warning | |
| CN103134766A (en) | Automobile exhaust analysis system based on infrared spectral absorption method and disposing method thereof | |
| CN202994656U (en) | Open circuit laser methane gas detection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 430000 unit 1, floor 1-5, building 3-11, phase III, optical core center, 303 Guanggu Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN NEWFIBER PHOTOELECTRIC Co.,Ltd. Address before: 11 / F, building C3, optical valley software park, special No.1, Guanshan Avenue, Donghu Development Zone, Wuhan City, Hubei Province, 430074 Patentee before: WUHAN NEWFIBER OPTOELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |