CN103451096A - Online system for collecting and processing data in biogas fermentation process - Google Patents
Online system for collecting and processing data in biogas fermentation process Download PDFInfo
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- CN103451096A CN103451096A CN2013103740075A CN201310374007A CN103451096A CN 103451096 A CN103451096 A CN 103451096A CN 2013103740075 A CN2013103740075 A CN 2013103740075A CN 201310374007 A CN201310374007 A CN 201310374007A CN 103451096 A CN103451096 A CN 103451096A
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- 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
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Abstract
The invention discloses an online system for collecting and processing data in a biogas fermentation process. The system consists of a gas measuring and transmitting device, a signal transmitting and receiving device, a data processing device, and a setting and displaying device, wherein the fermentation state in a fermentation tank is detected in real time through the gas measuring and transmitting device mounted on a biogas fermentation tank; information is transmitted to the data processing device through the signal transmitting and receiving device, then calculated and finally displayed on the setting and displaying device. According to the online system, a CH4 transmitter, a CO2 transmitter, an O2 transmitter and a H2S transmitter are mounted on a filtering and gas collecting device to detect changes of gas components in the biogas fermentation process, and parameters in the fermentation process is calculated by a PLC (Programmable Logic Controller), displayed and recorded in an online manner in real time, so that the visualization of changes of the gas components in the whole biogas fermentation process is realized and the theoretical basis is provided for improvement of the fermentation process and the fermentation device. In addition, the system disclosed by the invention is simple in structure, high in control precision and good in transportability.
Description
Technical field
The invention belongs to the methane engineering technology field, relate in particular to a kind of online marsh gas fermentation processes data Collection & Processing System.
Background technology
Marsh gas fermentation processes is in fact substance metabolism and the conversion process of energy of microorganism.In catabolic process, the biogas microorganism obtains energy and material, and to meet self growth and breeding, most of Substance Transformation is methane and carbon dioxide simultaneously.The science determination and analysis shows: organism approximately has 90% to be converted into biogas, 10% consumption for self by the biogas microorganism.It is that biochemical reaction by series of complex is realized that fermentation raw material forms methane.Nearly all organic substance can form methane by anaerobic degradation.The solid organism becomes the whole process of biogas, can be divided into liquefaction, produces acid and produce the methane three phases.In marsh gas fermentation processes, three phases interdepends and carries out continuously, and the while is also mutually be connected and mutually restrict.In the mensuration to methane-generating pit, can find out that biogas fermentation has such process: a large amount of volatile acids that produce of fermentation initial stage, when volatile acid concentration increases rapidly, ammonia nitrogen concentration sharply rises.When ammonia nitrogen concentration peaks, volatile acid density loss, redox potential reduce, and in gas production rate and gas, methane content rises and peaks.In for some time after this chain reaction completes, pH value, redox potential, gas production rate and methane content etc. are all basicly stable, and volatile acid concentration obviously descends.This situation explanation: in production and use of marsh gas fermenting process, each Some Circulating Factors has a considerable change, and they not only interdepend but also mutually retrain each other, and matrix is constantly decomposed, and biogas constantly forms, and makes whole fermentation in dynamic balance state.
But the biogas microorganism is also very sensitive to the variation of environment, the variation of some environmental factors can make balance be affected even to be destroyed.As: a charging is too much, temperature occurs suddenly to surpass in the variation, feed liquid of 2 ℃ and enters the situation such as certain toxic substance, will cause potential of hydrogen, gas production rate and aerogenic composition to change, and disequilibrates and affects aerogenesis.But the biogas microorganism equally also has certain adaptive faculty to environment, as long as the variation of environmental factors is no more than certain scope, be that balance is broken is also temporary transient, through the self-control of certain hour, can reach new balance again.This situation does not generally need artificial adjusting, only has environmental factors to change to have surpassed the ability to bear of microorganism, and running balance is destroyed can not recover voluntarily the time, just can take necessary artificial adjusting measure.Gas production rate and gas component ratio in marsh gas fermentation processes change constantly, by its monitoring, understanding residing stage of biogas fermentation and the residence time, for improving factor of created gase and biogas quality, provide foundation.
But existing manual shift marsh gas fermentation processes labour intensity is large, efficiency is low.
Summary of the invention
The object of the present invention is to provide a kind of online marsh gas fermentation processes data Collection & Processing System, utilize this device can gather real-time dynamicly all kinds of process datas in marsh gas fermentation processes, be intended to solve large, the inefficient problem of manual shift marsh gas fermentation processes labour intensity.
The present invention realizes like this, a kind of online marsh gas fermentation processes data Collection & Processing System, this device send device, signal transmission and receiving trap, data processing equipment, setting and display unit to form by aerometry and change, send device by the aerometry and the change that are arranged on marsh-gas fermentation tank, detect in real time fermentation state in fermentor tank, through signal transmission and receiving trap, information is sent to data processing equipment and carry out calculation process, and finally be presented on setting and display unit.
Further, online marsh gas fermentation processes data Collection & Processing System also comprises: fermentor tank, filtration gas collector, CH
4transmitter, H
2s transmitter, biogas vapor pipe, manual exhaust valve, O
2transmitter, CO
2transmitter;
The top of fermentor tank sets out gas port, and air outlet is threaded connection the filtration gas collector, filters on gas collector and is provided with 5 screw thread mouths, respectively with CH
4transmitter, H
2s transmitter, O
2transmitter, CO
2transmitter is connected with the biogas vapor pipe, and manual exhaust valve is mainly the break-make of controlling gas circuit.；
Further, the signal transmission is comprised of shielding twist paired signal line and analog quantity receiving trap with receiving trap;
Further, data processing equipment is the PLC programmable logic controller;
Further, arranging with display unit is on electric control box button and indicating meter to be set.
Online marsh gas fermentation processes data Collection & Processing System provided by the invention, send device, signal transmission and receiving trap, data processing equipment, setting and display unit by aerometry and change are set; The present invention is the interior fermentation situation of observed and recorded fermentor tank directly, and authentic and valid process data is provided, and can to the data analysis of any fermentation period, process easily, meet the control of technologist to fermenting process.In addition, the present invention is simple in structure, easy to operate, and a kind of online marsh gas fermentation processes data Collection & Processing System of excellent property is provided.
The accompanying drawing explanation
Fig. 1 is the structural representation of online marsh gas fermentation processes data Collection & Processing System provided by the invention;
In figure: 1, fermentor tank; 2, filter gas collector; 3, CH
4transmitter; 4, H
2the S transmitter; 5, biogas vapor pipe; 6, manual exhaust valve; 7, signal transmission and receiving trap; 8, electric control box; 9, display screen; 10, button is set; 11, O
2transmitter; 12, CO
2transmitter.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 has shown online marsh gas fermentation processes data Collection & Processing System provided by the invention.For convenience of explanation, only show part related to the present invention.
A kind of online marsh gas fermentation processes data Collection & Processing System, this device send device, signal transmission and receiving trap, data processing equipment, setting and display unit to form by aerometry and change, send device by the aerometry and the change that are arranged on marsh-gas fermentation tank, detect in real time fermentation state in fermentor tank, through signal transmission and receiving trap, information is sent to data processing equipment and carry out calculation process, and finally be presented on setting and display unit.
As a prioritization scheme of the embodiment of the present invention, online marsh gas fermentation processes data Collection & Processing System also comprises: fermentor tank, filtration gas collector, CH
4transmitter, H
2s transmitter, biogas vapor pipe, manual exhaust valve, O
2transmitter, CO
2transmitter;
The top of fermentor tank sets out gas port, and air outlet is threaded connection the filtration gas collector, filters on gas collector and is provided with 5 screw thread mouths, respectively with CH
4transmitter, H
2s transmitter, O
2transmitter, CO
2transmitter is connected with the biogas vapor pipe, and manual exhaust valve is mainly the break-make of controlling gas circuit.
As a prioritization scheme of the embodiment of the present invention, the signal transmission is comprised of shielding twist paired signal line and analog quantity receiving trap with receiving trap 7;
As a prioritization scheme of the embodiment of the present invention, data processing equipment is the PLC programmable logic controller;
As a prioritization scheme of the embodiment of the present invention, arrange with display unit be on electric control box 8 button 10 and display screen 9 be set.
It is reliable and stable that online marsh gas fermentation processes data Collection & Processing System provided by the invention has passed through to shield twist paired signal line and modulated current signal transmission guarantee signals transmission, and the data that receive by the programmable logic controller computing, thereby can Real-time and Dynamic observe online and record the marsh gas fermentation processes state.
CH of the present invention
4transmitter 3, H
2s transmitter 4, O
2transmitter 11, CO
2transmitter 12 mainly is connected by signal wire with programmable logic controller, the current signal that signal in signal wire is 4-20ma, gas transmitter contains gas sensor and treatment circuit is sent in change, the composition that its gas sensor detects physical quantity (gas) changes, and be transformed into electric weight and send into to become and send treatment circuit to be amplified, be modulated to the 4-20ma current signal output of standard, the analog module of programmable logic controller can directly receive the current signal of 4-20ma, the user just can convert standard current signal to accessible digital quantity signal by programmable logic controller is programmed, and for, process and control, externally output signal is all controlled to realize to programmable logic controller by the user with the reception signalization.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. an online marsh gas fermentation processes data Collection & Processing System, it is characterized in that, described online marsh gas fermentation processes data Collection & Processing System send device, signal transmission and receiving trap, data processing equipment, setting and display unit to form by aerometry and change;
Send device by the aerometry and the change that are arranged on marsh-gas fermentation tank, detect in real time fermentation state in fermentor tank, through signal transmission and receiving trap, information is sent to data processing equipment and carry out calculation process, and finally be presented on setting and display unit.
2. online marsh gas fermentation processes data Collection & Processing System as claimed in claim 1, is characterized in that, described online marsh gas fermentation processes data Collection & Processing System also comprises: fermentor tank, filtration gas collector, CH
4transmitter, H
2s transmitter, biogas vapor pipe, manual exhaust valve, O
2transmitter, CO
2transmitter;
The top of fermentor tank sets out gas port, and air outlet is threaded connection the filtration gas collector, filters on gas collector and is provided with 5 screw thread mouths, respectively with CH
4transmitter, H
2s transmitter, O
2transmitter, CO
2transmitter is connected with the biogas vapor pipe, and manual exhaust valve is mainly the break-make of controlling gas circuit.
3. online marsh gas fermentation processes data Collection & Processing System as claimed in claim 1, is characterized in that, described signal transmission is comprised of shielding twist paired signal line and analog quantity receiving trap with receiving trap.
4. online marsh gas fermentation processes data Collection & Processing System as claimed in claim 1, is characterized in that, described data processing equipment is the PLC programmable logic controller.
5. online marsh gas fermentation processes data Collection & Processing System as claimed in claim 1, is characterized in that, described setting and display unit are to be provided with button and indicating meter on electric control box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103740075A CN103451096A (en) | 2013-08-23 | 2013-08-23 | Online system for collecting and processing data in biogas fermentation process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103740075A CN103451096A (en) | 2013-08-23 | 2013-08-23 | Online system for collecting and processing data in biogas fermentation process |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004452A (en) * | 2010-08-17 | 2011-04-06 | 浙江大学 | Biogas-desulphurizing automatic control system and method based on detection of methane, hydrogen sulfide and oxygen gas contents |
| CN102353798A (en) * | 2011-07-01 | 2012-02-15 | 华东理工大学 | Biological fermentation process-oriented olfactory analog instrument and online analysis method |
| CN102433257A (en) * | 2011-10-13 | 2012-05-02 | 北京英保通科技发展有限公司 | Method for monitoring operation parameters of methane equipment |
| CN102680164A (en) * | 2012-05-08 | 2012-09-19 | 中国科学技术大学 | On-line monitoring system for anaerobic reactor |
-
2013
- 2013-08-23 CN CN2013103740075A patent/CN103451096A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004452A (en) * | 2010-08-17 | 2011-04-06 | 浙江大学 | Biogas-desulphurizing automatic control system and method based on detection of methane, hydrogen sulfide and oxygen gas contents |
| CN102353798A (en) * | 2011-07-01 | 2012-02-15 | 华东理工大学 | Biological fermentation process-oriented olfactory analog instrument and online analysis method |
| CN102433257A (en) * | 2011-10-13 | 2012-05-02 | 北京英保通科技发展有限公司 | Method for monitoring operation parameters of methane equipment |
| CN102680164A (en) * | 2012-05-08 | 2012-09-19 | 中国科学技术大学 | On-line monitoring system for anaerobic reactor |
Non-Patent Citations (1)
| Title |
|---|
| 辛睿德等: "沼气发酵监控***的发展现状与趋势", 《广东农业科学》 * |
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Application publication date: 20131218 |