CN106883987A - Methane-generating pit monitoring device - Google Patents
Methane-generating pit monitoring device Download PDFInfo
- Publication number
- CN106883987A CN106883987A CN201710137682.4A CN201710137682A CN106883987A CN 106883987 A CN106883987 A CN 106883987A CN 201710137682 A CN201710137682 A CN 201710137682A CN 106883987 A CN106883987 A CN 106883987A
- Authority
- CN
- China
- Prior art keywords
- module
- methane
- generating pit
- concentration
- monitoring device
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/30—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration
- C12M41/34—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of gas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/40—Means for regulation, monitoring, measurement or control, e.g. flow regulation of pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The present invention discloses methane-generating pit monitoring device, the combustable gas concentration of fuel gas detection module real-time detection methane-generating pit is set, when combustable gas concentration reaches the concentration ranges of default LEL and UEL, controller module control exhaust decompression module is exhausted and depressurizes, reduce the concentration of fuel gas in methane-generating pit, avoid explosion accident, simultaneously, start sound and light alarm module, call user's attention safety, and transmitted to outside monitoring module threat data by GPRS module, the present invention can reduce accident automatically by exhaust decompression to be occurred, again can be by alarm, remote transmission data, to remind user and monitoring personnel, considerably reduce the possibility of explosion accident generation, solve the problems, such as that explosion accident is easily triggered in gas pond in actual use well.
Description
Technical field
The present invention relates to methane-generating pit safety monitoring device, and in particular to methane-generating pit monitoring device.
Background technology
Some sewage in life, waste material are added to methane-generating pit, in the confined space of methane-generating pit, these sewage, waste material
Microbial action can be under anaerobic received, the biogas for producing and being available for people to utilize is decomposed.
Used as a kind of clean energy resource, methane-generating pit is widely used in China's major part rural area, but in actually used mistake
, can there is potential safety hazard in Cheng Zhong.After the fuel gas that methane-generating pit is produced mixes with air, concentration reaches certain limit, can be formed
Premix gas, meeting ignition source will explode, and this concentration range is referred to as explosion limit.The least concentration that can explode and
Maximum concentration, is referred to as LEL (LEL:Lower Explosion Limits) and UEL (UEL:Upper
Explosion Limits).LEL is the least concentration that air and combustible gas mixture can just be ignited；UEL is then flammable
The maximum concentration that gas can be ignited in atmosphere, the difference between LEL and UEL can be just the concentration ranges of combustion explosion,
If meeting the condition of combustion explosion, combustion explosion may occur in the fuel gas of this concentration ranges.Combustion mixture
Body neither explodes when less than LEL and higher than UEL concentration, also missing of ignition；This is the mistake because the former combustible concentration is inadequate
The cooling effect of air is measured, spreading for flame is prevented；And the latter Ze Yin combustable gas concentrations are increased, lack of air causes fire
The reason that flame can not spread.
Therefore, during the use of methane-generating pit, if mismanagement, not in place, biogas or other fuel gas are monitored
Release or storage cannot effectively control, will there is potential safety hazard：Finite concentration scope is reached when gas discharges or stores
Afterwards, blast is easily produced if chance naked light, causes casualty accident, the person and property safety to the people cause harm.For
Poisonous and harmful, the potential safety hazard of flammable explosive gas in methane-generating pit are found early, alarm emergency countermeasure is formulated, and are subtracted to greatest extent
The loss that few accident is caused, it is necessary to propose fuel gas in a kind of monitoring methane-generating pit, the monitoring for preventing explosion accident from occurring is filled
Put.
The content of the invention
The present invention provides methane-generating pit monitoring device, solves because methane-generating pit easily triggers blast thing in actual use
Therefore problem.
Methane-generating pit monitoring device, including fuel gas detection module, exhaust decompression module, sound and light alarm module, controller
Module, GPRS module and outside monitoring module；
The output end of the fuel gas detection module is connected with controller module；The input of the exhaust decompression module
It is connected with controller module, the output end of the exhaust decompression module is connected by pipeline with outdoor field；The acousto-optic report
The input of alert module is connected with controller module；The GPRS module is connected with controller module；The outside monitoring module
Wirelessly it is connected with GPRS module.
Temperature detecting module is further included, the output end of the temperature detecting module is connected with controller module.
Display module is further included, the display module is connected with controller module.
Further include memory module；The memory module is connected with controller module.
The fuel gas detection module is fixed infrared flammable gas sensor.
Beneficial effects of the present invention：
The present invention sets the combustable gas concentration of fuel gas detection module real-time detection methane-generating pit, works as combustable gas concentration
When reaching the concentration ranges of default LEL and UEL, controller module control exhaust decompression module is exhausted and depressurizes, and reduces
The concentration of fuel gas in methane-generating pit, it is to avoid explosion accident occurs, meanwhile, start sound and light alarm module, call user's attention peace
Entirely, and by GPRS module threat data is transmitted to outside monitoring module, the present invention can be reduced automatically by exhaust decompression
Accident occurs, and, to remind user and monitoring personnel, can considerably reduce explosion accident by alarm, remote transmission data
The possibility of generation, solves the problems, such as that explosion accident is easily triggered in gas pond in actual use well.
Brief description of the drawings
Fig. 1 is structural principle block diagram of the present invention.
Specific embodiment
The invention will be further described with reference to embodiments, but the invention is not limited in these embodiments.
Methane-generating pit monitoring device, including fuel gas detection module, exhaust decompression module, sound and light alarm module, controller
Module, GPRS module and outside monitoring module；The output end of the fuel gas detection module is connected with controller module；Institute
The input for stating exhaust decompression module is connected with controller module, and the output end of the exhaust decompression module is by pipeline and outdoor
Field is connected；The input of the sound and light alarm module is connected with controller module；The GPRS module and controller module
It is connected；The outside monitoring module is wirelessly connected with GPRS module.
Most of composition (such as CH4, CO, H2, SO2, NO and CO2) in biogas has the property for absorbing infrared energy
Matter, and with uniqueness, will not change because of the change of the conditions such as environment, temperature.Fuel gas detection module is fixed red
Outer flammable gas sensor, is detected using above-mentioned characteristic to the fuel gas in methane-generating pit.Fixed infrared combustible gas sensing
Device is iTrans7701-5857.The combustible gas sensor be provided with incandescent lamp bulb, pyroelectric detector, infrared fileter and
Sampling air chamber, incandescent lamp bulb as infrared light supply, by the use of pyroelectric detector as Infrared Detectors, by infrared fileter and heat
Release electric explorer to be packaged together, sampling air chamber is made using stainless steel, and cylindrical, infrared light supply and Infrared Detectors are solid
The bottom of sampling air chamber is scheduled on, is left at the top of sampling air chamber and is allowed the aperture of gas free diffusing, the light that infrared light supply sends to exist
Sampling air chamber inwall multiple reflections and reach pyroelectric detector, increase light path in limited space, make infrared energy
It is enough to be fully absorbed by fuel gas, improve resolution ratio.
The output signal of fuel gas detection module is defeated in the controller module after linear interpolation and temperature-compensating treatment
Go out the industrial standard current signal measured value of the 4~20m A being directly proportional to combustable gas concentration.Modulus inside controller module
Be converted into for this current signal to be filtered it after data signal treatment by change-over circuit, and the data after treatment are divided
Analysis.Fuel gas detection module is located at the about 30-50cm of inspection well cover lower section, additional protector.
When the fuel gas in methane-generating pit is fallen into the concentration range of LEL and UEL, exhaust decompression module is in controller mould
Worked under the control of block, be exhausted decompression, reduce combustable gas concentration, it is to avoid produce blast.
GPRS module uses MC35i modules, for being wirelessly transferred for combustable gas concentration data and early warning information.
MC35i modules can be carried out data transmission using TCP/IP in GPRS network covering area as data communication protocol.GPRS module
RS485 interfaces, controller module are used between controller module carries out ICP/IP protocol encapsulation by combustable gas concentration data,
Outside monitoring module is sent data to by MC35i modules.
When continuous more than 20 seconds of imflammable gas concentration is all within the concentration range of LEL and UEL, sound and light alarm module
Start alarm, and with indicator lamp flicker, point out the combustable gas concentration of the current methane-generating pit of user to be in the dense of combustion explosion
Degree is interval, should in time take measures and note personal safety.
Outside monitoring module is personal computer or smart mobile phone, user can at any time using the monitoring of outside monitoring module,
The combustable gas concentration of current methane-generating pit is inquired about, user can be in the concentration area of combustion explosion in the combustable gas concentration of methane-generating pit
Between more than more than 20 seconds when, the methane-generating pit early warning information that outside monitoring module is sent is received by outside monitoring module.
The combustable gas concentration data that controller module is arrived according to Real-time Collection judge that fuel gas is dense in current methane-generating pit
When concentration ranges of the degree in combustion explosion were more than more than 20 seconds, sound and light alarm module alert is started immediately, meanwhile,
After the combustable gas concentration information via controller module carries out ICP/IP protocol encapsulation, control GPRS module is to outside monitoring module
Transmitted wirelessly, provided a user with methane-generating pit early warning information.The present invention is from STM32F103ZET6 chips as controller mould
Block.
Temperature detecting module is further included, the output end of the temperature detecting module is connected with controller module.Temperature
Detection module and fuel gas detection module are installed together, for the temperature change of real-time monitoring methane-generating pit, while being flammable
Real time temperature coefficient is provided during gas detection module, in order to carry out temperature-compensating.Temperature detecting module of the invention is
DS18B20。
Display module is further included, the display module is connected with controller module.Display module of the invention is electricity
Hold touch LCD screen, shown for concentration, time showing, status display and temperature show.User can be switched to setting shape
State, is set by capacitance touch liquid crystal display or changes alarm limits, is easy to testing staff to observe gas concentration and change at any time
Alarm limit.When user needs to enter into cleared up in methane-generating pit methane-generating pit or other operations, can be checked currently by display module
Whether combustable gas concentration is in safe range.
Memory module is further included, the memory module is connected with controller module.Memory module can be by rule
The data of fixed database format saving scene initial data, alert data and operation note, memory module of the invention is
SD card.
The course of work of the invention is：
Combustable gas concentration in fuel gas detection module real-time detection methane-generating pit, detection data is transmitted by GPRS module
To outside monitoring module, and shown in real time by display module；When in the concentration range that combustable gas concentration falls into LEL and UEL
When, controller module control exhaust decompression module carries out appropriate exhaust decompression, combustable gas concentration is reduced, until methane-generating pit
Interior combustable gas concentration is less than LEL values；When in continuous more than the 20 seconds concentration ranges all in LEL and UEL of combustable gas concentration
When, sound and light alarm module sounds the alarm, and points out user and monitoring personnel to note methane-generating pit surrounding environment, it is to avoid naked light.
Computer program of the present invention is existing program, be simple calculations and judge the present invention do not carry out it is any
Improve.
Claims (5)
1. methane-generating pit monitoring device, it is characterised in that：
Including fuel gas detection module, exhaust decompression module, sound and light alarm module, controller module, GPRS module and outer
Portion's monitoring module；
The output end of the fuel gas detection module is connected with controller module；The input of the exhaust decompression module and control
Device module processed is connected, and the output end of the exhaust decompression module is connected by pipeline with outdoor field；The sound and light alarm mould
The input of block is connected with controller module；The GPRS module is connected with controller module；The outside monitoring module with
GPRS module is wirelessly connected.
2. methane-generating pit monitoring device according to claim 1, it is characterised in that：Temperature detecting module is further included, institute
The output end for stating temperature detecting module is connected with controller module.
3. methane-generating pit monitoring device according to claim 1, it is characterised in that：Display module is further included, it is described aobvious
Show that module is connected with controller module.
4. methane-generating pit monitoring device according to claim 1, it is characterised in that：Further include memory module；It is described
Memory module is connected with controller module.
5. methane-generating pit monitoring device according to claim 1, it is characterised in that：The fuel gas detection module is fixation
The infrared flammable gas sensor of formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137682.4A CN106883987A (en) | 2017-03-09 | 2017-03-09 | Methane-generating pit monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137682.4A CN106883987A (en) | 2017-03-09 | 2017-03-09 | Methane-generating pit monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106883987A true CN106883987A (en) | 2017-06-23 |
Family
ID=59179613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710137682.4A Pending CN106883987A (en) | 2017-03-09 | 2017-03-09 | Methane-generating pit monitoring device |
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| Country | Link |
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| CN (1) | CN106883987A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057773A (en) * | 2019-05-05 | 2019-07-26 | 南京信息工程大学 | A kind of infrared gas sensor system and the temperature-compensation method based on AACA-Elman algorithm |
| CN114958529A (en) * | 2022-05-25 | 2022-08-30 | 广东美的厨房电器制造有限公司 | Food processor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295085A (en) * | 2011-05-25 | 2011-12-28 | 燕京啤酒(桂林漓泉)股份有限公司 | Hot film methane hot wind utilization control system and operation control method thereof |
| CN202904858U (en) * | 2012-10-30 | 2013-04-24 | 深圳市首航通信有限公司 | Methane detection system of manhole cover |
| CN104893971A (en) * | 2015-06-01 | 2015-09-09 | 张家港市天源机械制造有限公司 | Intelligent monitoring device of biogas engineering anaerobic fermentation system |
| CN205788682U (en) * | 2016-05-27 | 2016-12-07 | 福州大学 | Low-power consumption city biogas safety anti-explosive system |
-
2017
- 2017-03-09 CN CN201710137682.4A patent/CN106883987A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295085A (en) * | 2011-05-25 | 2011-12-28 | 燕京啤酒(桂林漓泉)股份有限公司 | Hot film methane hot wind utilization control system and operation control method thereof |
| CN202904858U (en) * | 2012-10-30 | 2013-04-24 | 深圳市首航通信有限公司 | Methane detection system of manhole cover |
| CN104893971A (en) * | 2015-06-01 | 2015-09-09 | 张家港市天源机械制造有限公司 | Intelligent monitoring device of biogas engineering anaerobic fermentation system |
| CN205788682U (en) * | 2016-05-27 | 2016-12-07 | 福州大学 | Low-power consumption city biogas safety anti-explosive system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057773A (en) * | 2019-05-05 | 2019-07-26 | 南京信息工程大学 | A kind of infrared gas sensor system and the temperature-compensation method based on AACA-Elman algorithm |
| CN114958529A (en) * | 2022-05-25 | 2022-08-30 | 广东美的厨房电器制造有限公司 | Food processor |
| CN114958529B (en) * | 2022-05-25 | 2023-06-02 | 广东美的厨房电器制造有限公司 | Food processor |
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| PB01 | Publication | ||
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Application publication date: 20170623 |