CN105486833A - Methane detecting device for internet-of-things valve well - Google Patents
Methane detecting device for internet-of-things valve well Download PDFInfo
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- CN105486833A CN105486833A CN201610007526.1A CN201610007526A CN105486833A CN 105486833 A CN105486833 A CN 105486833A CN 201610007526 A CN201610007526 A CN 201610007526A CN 105486833 A CN105486833 A CN 105486833A
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- Prior art keywords
- sensor
- gas
- gas sensor
- valve well
- controller
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000001745 non-dispersive infrared spectroscopy Methods 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 55
- 238000004891 communication Methods 0.000 description 7
- 238000007084 catalytic combustion reaction Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006012 detection of carbon dioxide Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 230000035987 intoxication Effects 0.000 description 1
- 231100000566 intoxication Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Food Science & Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a methane detecting device for an internet-of-things valve well. The methane detecting device comprises a machine shell. A card door, an antenna pedestal, a waterproof joint and a one-way gas discharging valve are arranged on the machine shell. The machine shell is internally provided with a sensor installing support, a sensor circuit board, a gas sensor, a gas pump, a controller, a gas sensor cavity, a photosensitive diode and an inclination sensor. An antenna is installed on the antenna pedestal; a water level sensor and the photosensitive diode are arranged on the waterproof joint; the sensor circuit board is connected with the gas sensor, and the gas sensor is arranged in the gas sensor cavity; the gas sensor cavity is communicated with the gas pump, the gas pump is communicated with the valve well, and the one-way gas discharging valve is communicated with the gas sensor cavity; the photosensitive diode is used for detecting whether the device is opened or not; the inclination sensor is used for detecting whether the device is in the normal state or not; the controller is connected with an SIM card device, the sensor circuit board, the gas pump, a battery pack, the water level sensor, the photosensitive diode and the inclination sensor. The methane detecting device is simple in structure and has multiple detecting warning functions.
Description
Technical field
The present invention relates to a kind of Internet of Things valve well CH_4 detection device, be mainly used in gas ductwork valve well gas leakage.
Background technology
Along with the high speed development of China's gas industry, gas safe technology more and more comes into one's own, and traditional safety detection can not meet the requirement of people to gas safe production run.Problems existing in current gas fault (leakage) detection system is analyzed, and particularly gas ductwork valve well gas leakage exists larger problem at present.
The detection system that existing pipeline network of fuel gas in city valve well gas leakage is traditional, the mainly mechanism of manual inspection, to pipeline and the annex thereof of gas distribution system, gas network, the safety inspection of equipment.
Manual inspection is exactly in fact the detection of discontinuity, along with the difference of the feature of detection can be divided into fixed and portable.Checkout equipment is fixed on certain point as user kitchen by fixed referring to, detects well, in valve well, to the monitoring that a certain space is carried out, leaks and reach finite concentration, just send alerting signal once generation.
Fixed checkout equipment sensor mainly adopts catalytic combustion type, thermal conductance, semiconductor-type sensors in the market,
Catalytic combustion method gas sensor prepares resistant to elevated temperatures catalyst layer on the surface of platinum resistance, at a certain temperature, inflammable gas burns at its surface catalysis, and burning is that platinum resistance temperature raises, resistance variations, changing value is the function of inflammable gas concentration.Its advantage: catalytic combustion method gas sensor optionally detects inflammable gas: every aphlogistic, sensor is all without any response.Shortcoming: within the scope of inflammable gas, non-selectivity.Dying fire works, and has the danger of blast of igniting.Most elements organic steam has intoxication to sensor.
Semiconductor-type gas sensor utilizes some metal oxide semiconductor materials, and at a certain temperature, the principle that conductivity changes along with the change of environmental gas composition manufactures.Such as, alcohol sensor, when utilizing tin ash at high temperature to run into alcohol gas exactly, prepared by the principle that resistance can sharply reduce.
Advantage: semiconductor-type gas sensor can effectively for: a lot of gas ground such as methane, ethane, propane, butane, alcohol, formaldehyde, carbon monoxide, carbon dioxide, ethene, acetylene, vinyl chloride, styrene, acrylic acid detects.Especially, this sensor is with low cost, is suitable for the demand that domestic gas detects.
Shortcoming: less stable is affected by environment larger; Especially, the selectivity of each sensor is not unique, and output parameter can not be determined.Therefore, the place of accurate measurement requirement should not be applied to.
Thermal conductance pool gas sensor: each gas, has oneself specific thermal conductivity, when two larger with the thermal conductivity difference of multiple gas, can utilize heat conducting element, differentiate the content of one of them component.This sensor is used for the detection of hydrogen, the detection of carbon dioxide, the detection of high concentration methane in sensor ground.
This gas sensor can range of application narrower, limiting factor is more.
Burnt gas valve well is that and then city gas pipeline, generally along urban road, lays in walkway or green belt.Due to the cloudy tide of valve well environment, there is organic steam and the non-transformer supply shortcomings such as Sensor Poisoning, less stable and life-span be short that adopt catalytic combustion type, thermal conductance, semiconductor-type sensors to produce.
Summary of the invention
Technical matters to be solved by this invention overcomes above-mentioned deficiency existing in prior art, and a kind of Internet of Things valve well CH_4 detection device based on NDIR infrared gas sensor is provided, collect the detection alarm such as CH_4 detection in valve well, water level detecting, well lid displacement and destruction, detect data wireless be transferred to system management software platform, facilitate system acquisition data go forward side by side line pipe reason.
The present invention solves the problems of the technologies described above adopted technical scheme and comprises: a kind of Internet of Things valve well CH_4 detection device, and comprise casing, casing is provided with plug-in card door, antenna pedestal, water joint, one-way exhaust valve, air admission hole, is provided with mounting frame for sensor in casing, sensor line plate, chamber pore, gas sensor, air pump, tracheae, electric battery, controller, gas sensor chamber, photodiode, inclination sensor, astronomical cycle is on antenna pedestal, and water joint is provided with level sensor and photodiode, and sensor line plate is connected with gas sensor, and gas sensor is placed in gas sensor chamber, and gas sensor chamber is by chamber pore, tracheae is connected with air pump, air pump is communicated with valve well, one-way exhaust valve and gas sensor chamber, whether photodiode is used for detecting Internet of Things valve well CH_4 detection device and is opened, inclination sensor is used for detecting Internet of Things valve well CH_4 detection device and whether is in normal condition, and SIM card device is arranged in plug-in card door, and controller is provided with wireless module, wireless module is connected with antenna, controller and SIM card device, sensor line plate, air pump, electric battery, level sensor, photodiode, inclination sensor all connects, and detection data are also issued control system by controller periodic detection valve well gas, work as level sensor, photodiode, when inclination sensor detects abnormal signal, controller sends alerting signal to control system.
Casing of the present invention comprises the end box, battery case, the upper cover that link into an integrated entity, also be provided with SIM card sealing gasket in casing, support sealing gasket, support O-ring seal, end box O-ring seal, SIM card device be arranged on SIM card sealing gasket, antenna pedestal is provided with sealant pouring and sealing layer, to realize sealing better, assurance device works with security and stability.
Gas sensor of the present invention adopts NDIR infrared gas sensor.
The present invention is simple for structure, integrate image taking, image analysis, image and data wireless teletransmission, image and the function such as data storing and management, realize the networking of urban pipe network instrument, information-based, intelligent management, automaticity is high, reduces cost of labor, reduces the error of gauge table electronic system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the schematic top plan view of the box of the end shown in Fig. 1.
Fig. 3 is the A-A cross-sectional schematic of Fig. 2.
Fig. 4 is that application schematic diagram is looked on a left side for the embodiment of the present invention.
In figure: 1-plug-in card door; 2-SIM card sealing gasket; Box at the bottom of 3-; 4-mounting frame for sensor; 5-sensor line plate; 6-one-way exhaust valve; 7-gas sensor; 8-air pump; 9-tracheae; 10-battery case; 11-electric battery; 12-upper cover; 13-controller; 14-support sealing gasket; 15-support O-ring seal; Box O-ring seal at the bottom of 16-; 17-antenna pedestal; 18-hexagon socket cap head screw; 19-water joint; 20-chamber pore; 21-air admission hole; 22-level sensor; 23-gas sensor chamber; 24-photodiode; 25-inclination sensor.
Embodiment
See Fig. 1 ~ Fig. 4, described in the embodiment of the present invention, Internet of Things valve well CH_4 detection device comprises casing, and casing comprises the end box 3 connected successively by screw, battery case 10, upper cover 12, casing is provided with plug-in card door 1, antenna pedestal 17, water joint 19, one-way exhaust valve 6, air admission hole 21, is provided with SIM card sealing gasket 2 in casing, mounting frame for sensor 4, sensor line plate 5, gas sensor 7, air pump 8, tracheae 9, electric battery 10, controller 13, support sealing gasket 14, support O-ring seal 16, end box O-ring seal 16, chamber pore 20, gas sensor chamber 23, inclination sensor 25, SIM card device is arranged on SIM card sealing gasket 2, astronomical cycle is on antenna pedestal 17, antenna pedestal 17 is provided with sealant pouring and sealing layer, water joint 19 is provided with level sensor 22 and photodiode 24, sensor line plate 5 is connected with gas sensor 7, and one-way exhaust valve 6 is arranged on and end box 3 is used for one-way exhaust, and gas sensor 7 to be placed in gas sensor chamber 23 and by chamber pore 20, tracheae 9 is connected with air pump 8, and air pump 8 is communicated with for gas in Sampler valves well by air admission hole 21 with valve well, and controller 13 is provided with wireless module (GPRS communication module), and wireless module is connected with antenna, controller 13 and SIM card device, sensor line plate 5, air pump 8, electric battery 11, level sensor 22, photodiode 24, inclination sensor 25 all connects and controls its operation.
Sense cycle of the present invention to or control system (gas company's monitoring server) assign detect instruction time, whether first controller 13 detects SIM card exists and normally works, do not have or abnormal time enter dormant state, to have and normal with regard to booster air pump 8, whether normally detect valve well gas by gas sensor 7, detection data are issued control system by GPRS communication module and antenna by controller 13.Whenever, when in level sensor 22, photodiode 24, inclination sensor 25, any one detects abnormal signal, the present embodiment all sends alerting signal by GPRS communication module and sky alignment control system.
The present embodiment has following functions:
One. water-level alarm
The present embodiment is placed in valve well lid horizontal direction upper end, when valve well water level rises to setting value, the level sensor 22 in device sends alerting signal and sends alerting signal by the GPRS communication module on controller 13 and sky alignment control system to controller 13.
Two. damaged, burglar alarm
When valve manhole cover damage or stolen time, the photodiode 24 in device and inclination sensor 25 send alerting signal to controller 13, send alerting signal by the GPRS communication module on controller 13 and sky alignment control system.
Three. gas leakage alarm
Air pump 8 regularly (time can be arranged) is suction gas inlet body sensor chamber 23 in valve hoistway from device, the concentration values of mixed gas is detected and the GPRS communication module on controller 13 and sky alignment control system transmission concentration values by infrared gas sensor 7, differentiate whether send alerting signal by the software in monitoring server, and record concentration values.
Four, timing detects and reported data
Server end can set valve well Forewarning Terminal sense cycle and report cycle, the present embodiment is not when reporting to the police triggering, automatically carry out detecting each sensing data by the time of server settings, and send data by GPRS communication module and sky alignment control system.
All equivalences of doing according to structure, feature and the principle described in inventional idea of the present invention or simple change, be included in the protection domain of patent of the present invention.
Claims (3)
1. an Internet of Things valve well CH_4 detection device, comprises casing, it is characterized in that: casing is provided with plug-in card door, antenna pedestal, water joint, one-way exhaust valve, is provided with mounting frame for sensor in casing, sensor line plate, chamber pore, gas sensor, air pump, tracheae, electric battery, controller, gas sensor chamber, photodiode, inclination sensor, astronomical cycle is on antenna pedestal, and water joint is provided with level sensor and photodiode, and sensor line plate is connected with gas sensor, and gas sensor is placed in gas sensor chamber, and gas sensor chamber is by chamber pore, tracheae is communicated with air pump, air pump is communicated with valve well, one-way exhaust valve and gas sensor chamber, whether photodiode is used for detecting Internet of Things valve well CH_4 detection device and is opened, inclination sensor is used for detecting Internet of Things valve well CH_4 detection device and whether is in normal condition, and SIM card device is arranged in plug-in card door, and controller is provided with wireless module, wireless module is connected with antenna, controller and SIM card device, sensor line plate, air pump, electric battery, level sensor, photodiode, inclination sensor all connects, and detection data are also issued control system by controller periodic detection valve well gas, work as level sensor, photodiode, when inclination sensor detects abnormal signal, controller sends alerting signal to control system.
2. Internet of Things valve well CH_4 detection device according to claim 1, it is characterized in that: described casing comprises the end box, battery case, the upper cover that link into an integrated entity, also be provided with SIM card sealing gasket in casing, support sealing gasket, support O-ring seal, end box O-ring seal, SIM card device be arranged on SIM card sealing gasket, antenna pedestal is provided with sealant pouring and sealing layer.
3. Internet of Things valve well CH_4 detection device according to claim 1 and 2, is characterized in that: described gas sensor adopts NDIR infrared gas sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610007526.1A CN105486833A (en) | 2016-01-07 | 2016-01-07 | Methane detecting device for internet-of-things valve well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610007526.1A CN105486833A (en) | 2016-01-07 | 2016-01-07 | Methane detecting device for internet-of-things valve well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105486833A true CN105486833A (en) | 2016-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610007526.1A Pending CN105486833A (en) | 2016-01-07 | 2016-01-07 | Methane detecting device for internet-of-things valve well |
Country Status (1)
| Country | Link |
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| CN (1) | CN105486833A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462675A (en) * | 2017-07-31 | 2017-12-12 | 摩瑞尔电器（昆山）有限公司 | Environmental detection set with integral sensor protective cover |
| CN108107236A (en) * | 2017-12-06 | 2018-06-01 | 国网宁夏电力有限公司宁东供电公司 | A kind of cable duct intelligent acquisition unit protection babinet |
| CN108538015A (en) * | 2018-03-21 | 2018-09-14 | 上海新奥新能源技术有限公司 | A kind of monitoring device and method of burnt gas valve well |
| CN109387341A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | The combined type gas leakage monitor alarm device and method monitored based on gas concentration and physical quantity |
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