CN214300114U - Movable anaerobic fermentation on-line monitoring integrated device - Google Patents
Movable anaerobic fermentation on-line monitoring integrated device Download PDFInfo
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- CN214300114U CN214300114U CN202022996575.7U CN202022996575U CN214300114U CN 214300114 U CN214300114 U CN 214300114U CN 202022996575 U CN202022996575 U CN 202022996575U CN 214300114 U CN214300114 U CN 214300114U
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Abstract
The utility model discloses a movable anaerobic fermentation on-line monitoring integrated device, including filtration system, dilution hybrid system, detection jar, distilled water heater, data acquisition system and temperature control device, filtration system connects gradually through anaerobism digestive juice transmission pipeline and dilutes hybrid system and detection jar, the top side of detection jar is equipped with data acquisition system and temperature control device respectively, filtration system and the anaerobism digestive juice transmission pipeline and the distilled water transmission pipeline intercommunication between the hybrid system of diluting, distilled water transmission pipeline is connected with the distilled water heater. The utility model has the characteristics of simple structure, portable, can amplify monitoring index, the marsh gas engineering later stage installation of being convenient for use etc, functions such as anaerobic fermentation unstability early warning can be realized to supporting software independently researched and developed, have solved anaerobic digestion online monitoring index imperfect, can't judge in advance that system stable condition, monitored control system can only be when the marsh gas engineering construction difficult problems such as synchronous design installation.
Description
Technical Field
The utility model relates to an anaerobic fermentation technical field especially relates to a movable anaerobic fermentation on-line monitoring integrated device.
Background
Anaerobic fermentation is a mature energy technology, organic matters are converted into methane, the methane is convenient to transport and store, the heat value is high, the combustion pollution is small, and the application is wide. The utilization of the methane anaerobic fermentation technology to treat the large-batch wastes is still a practical and effective measure for the utilization of renewable energy sources and the environmental protection in China. Anaerobic fermentation is a complex and variable microbiological process, and in order to improve the stability of biogas engineering operation, real-time data acquisition and monitoring are required to be carried out on the anaerobic fermentation process so as to realize statistics, analysis and scientific decision on the biogas engineering operation.
Compared with experimental research, the interference factors of large-scale biogas fermentation are more, so that the online acquisition and analysis and prediction of fermentation data become the key of stable operation of biogas engineering. If the key fermentation parameters can be timely and accurately mastered and adjusted, the operation efficiency and stability of the biogas project can be effectively improved.
Developed countries in europe such as germany and sweden are at the world's first level in the online detection and control of biogas fermentation. Compared with China, the anaerobic fermentation technology of China is still at a lower level, and the overall operation efficiency of the biogas engineering is not high, so that the efficient operation of the biogas engineering is promoted by strengthening the research of the online monitoring technology. The main parameters influencing the influence of various metabolic factors on the stability of the anaerobic fermentation process comprise three types of liquid phase parameters, gas phase parameters and solid phase parameters. The solid phase parameter measurement method is complex, so that the measurement is mostly carried out manually in an off-line manner, and parameters monitored on line mainly comprise liquid phase parameters and gas phase parameters.
Although many anaerobic fermentation online monitoring devices are available, in practical applications, there are problems: firstly, the online monitoring indexes only have basic indexes such as temperature, pressure, gas components and the like, some key indexes such as volatile fatty acid, ammonia nitrogen concentration and the like still need manual sampling detection, and the existing sensor has small measuring range and cannot meet the requirements; secondly, the early warning means of the biogas project is not perfect, effective early warning indication cannot be provided at the initial stage that the acidification trend of the system occurs and the stability in the system is damaged, and the indication of the monitoring system to the operation of the biogas project is relatively slow, so that the system is difficult to quickly recover to normal after being unstable; thirdly, most of the on-line monitoring sensors are distributed and installed on the anaerobic fermentation tank body, an on-line monitoring system needs to be installed synchronously during the construction of the biogas project, and the on-line monitoring sensors cannot be added at the later stage, so that the on-line monitoring sensors are not beneficial to the updating and optimization of the on-line monitoring technology of the biogas project.
Disclosure of Invention
An object of the utility model is to provide a movable anaerobic fermentation on-line monitoring integrated device, have simple structure, portable, can amplify monitoring index, be convenient for characteristics such as marsh gas engineering later stage installation use, the supporting software of independently researching and developing can realize functions such as anaerobic fermentation unstability early warning, solved anaerobic digestion on-line monitoring index incomplete, can't judge in advance that system stable condition, monitored control system can only be when marsh gas engineering construction difficult problems such as synchronous design installation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a movable anaerobic fermentation on-line monitoring integrated device, includes filtration system, dilutes the hybrid system, detects jar, distilled water heater, data acquisition system and temperature control device, filtration system connects gradually through anaerobic digestion liquid transmission pipeline and dilutes hybrid system and detection jar, the top side of detecting the jar is equipped with data acquisition system and temperature control device respectively, anaerobic digestion liquid transmission pipeline and distilled water transmission pipeline intercommunication between filtration system and the dilution hybrid system, distilled water transmission pipeline is connected with the distilled water heater, distilled water transmission pipeline is equipped with second temperature sensor and second measuring pump from the distilled water heater to between the anaerobic digestion liquid transmission pipeline in proper order.
Further, the data acquisition system comprises a thermometer, a pH meter and a conductance meterRate meter, ORP sensor, NH4-N sensor, COD sensor and VFA sensor, said thermometer, pH meter, conductivity meter, ORP sensor, NH4The N sensor, the COD sensor and the VFA sensor are respectively connected into the detection tank through the detection hole of the detection tank.
Further, the outer wall of the detection tank is wrapped with an electric heating insulation belt, the electric heating insulation belt is electrically connected with a temperature control device, and the temperature of the electric heating insulation belt is regulated and controlled through the temperature control device.
Furthermore, the filter system is connected with a first temperature sensor through an anaerobic digestion liquid inlet end of an anaerobic digestion liquid transmission pipeline.
Furthermore, a first metering pump is arranged on an anaerobic digestion liquid transmission pipeline between the filtering system and the distilled water transmission pipeline.
Further, the filtering system adopts 10-mesh and 30-mesh stainless steel replaceable screens arranged in the filtering box to perform double-stage filtering on the fermentation liquor.
The utility model has the advantages that:
the utility model discloses can be connected with anaerobic fermentation tank sample connection in the demonstration engineering, through supporting filtration system, quantitative dilution hybrid system, cleaning system and heat preservation system, integrated pH, VFA, NH4Sensors such as N, COD, ORP and the like can carry out integrated online monitoring on a plurality of parameters of anaerobic digestion.
The utility model discloses supporting software of independently researching and developing can realize functions such as anaerobic fermentation unstability early warning, has solved anaerobic digestion on-line monitoring index imperfect, can't judge difficult problems such as system stability condition, monitored control system synchronous design installation when marsh gas engineering construction in advance.
The utility model discloses a filtration system comprises 10 meshes and two stainless steel screen cloth of 30 meshes, and the doublestage is filtered, and can replace, can get rid of most impurity in the anaerobic digestion liquid, guarantees to get into the liquid that detects the jar clear, does not receive impurity interference when being favorable to sensor on next step to detect, guarantees to detect the data accuracy to solve current sensor and often receive the influence of impurity such as complete straw, the dirty granule of excrement of undigesting, detect difficult problems such as data inaccuracy even unable detection.
The utility model discloses it is little to current sensor range, can't satisfy the problem that marsh gas engineering on-line monitoring required, adopted the ration dilution method, set for the multiple to anaerobic digestion liquid and dilute, can directly detect with current sensor, the detection data passes through the automatic back that converts of on-line monitoring software, can obtain anaerobic digestion liquid's actual parameter index to an unstability early warning is judged.
The utility model discloses with temperature, pH, conductivity, ORP, NH4the-N, COD and the VFA sensor are integrated on a set of system, so that centralized collection and transmission of data are facilitated, instability of scattered collected data and increase of equipment cost are avoided, the whole set of device can be detached and moved, later-stage installation and use of a biogas project are facilitated, and upgrading of the constructed biogas project is facilitated.
The utility model discloses a detect first temperature sensor data and come regulation control second temperature sensor and thermometer data to it is unanimous to dilute mixed liquid temperature in guaranteeing anaerobic digestion liquid, distilled water and the detection jar, has improved the measuring accuracy and the degree of accuracy.
The utility model has the characteristics of simple structure, portable, can amplify monitoring index, be convenient for marsh gas engineering later stage installation and use etc.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a filtration system; 2. a first metering pump; 3. a dilution mixing system; 4. a second metering pump; 5. a detection tank; 6. a thermometer; a pH meter; 8. a conductivity meter; an ORP sensor; NH 104-N sensors; a COD sensor; a VFA sensor; 13. an electric heating heat preservation belt; 14. a temperature control device; 15. a first temperature sensor; 16. a second temperature sensor; 17. a distilled water heater; 18. an anaerobic digester effluent transfer line; 19. distilled water conveying pipeline.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the movable anaerobic fermentation online monitoring integrated device comprises a filtering system 1, a dilution mixing system 3, a detection tank 5, a distilled water heater 17, a data acquisition system and a temperature control device 14, wherein the filtering system 1 is sequentially connected with the dilution mixing system 3 and the detection tank 5 through an anaerobic digestion liquid transmission pipeline 18, the top side of the detection tank 5 is respectively provided with the data acquisition system and the temperature control device 14, the anaerobic digestion liquid transmission pipeline 18 between the filtering system 1 and the dilution mixing system 3 is connected with the distilled water heater 17 through a distilled water transmission pipeline 19, and the distilled water transmission pipeline 19 is sequentially provided with a second temperature sensor 16 and a second metering pump 4 from the distilled water heater 17 to the anaerobic digestion liquid transmission pipeline 18.
The data acquisition system comprises a thermometer 6, a pH meter 7, a conductivity meter 8, an ORP sensor 9 and NH4N sensor 10, COD sensor 11 and VFA sensor 12, said thermometer 6, pH meter 7, conductivity meter 8, ORP sensor 9, NH4the-N sensor 10, the COD sensor 11 and the VFA sensor 12 are respectively connected into the detection tank 5 through detection holes of the detection tank 5, so that centralized collection and transmission of data after mixing anaerobic digestion liquid and distilled water in the detection tank 5 are facilitated, instability of scattered collected data and increase of equipment cost are avoided, the whole device can be detached and moved, later-stage installation and use of a biogas project are facilitated, and upgrading of the constructed biogas project is facilitated.
The ORP sensor 9 is an oxidation-reduction potential sensor or NH4the-N sensor 10 is an ammonia nitrogen sensor, the COD sensor 11 is a chemical oxygen demand sensor and the VFA sensor 12 is a volatile organic acid sensor.
The outer wall of the detection tank 5 is wrapped by an electric heating heat preservation belt 13, the electric heating heat preservation belt 13 is electrically connected with a temperature control device 14, and the temperature of the electric heating heat preservation belt 13 is regulated and controlled by the temperature control device 14 so as to ensure that the temperature in the detection tank 5 is consistent with the temperature in the anaerobic fermentation tank.
The filtering system 1 is connected with a first temperature sensor 15 through an anaerobic digestion liquid (fermentation liquid) inlet end of an anaerobic digestion liquid transmission pipeline 18, the first temperature sensor 15 is arranged at the fermentation liquid inlet end, a second temperature sensor 16 is arranged at a distilled water end, and the first temperature sensor 15 feeds back detection of the temperature of the fermentation liquid to a distilled water heater 17 to heat distilled water in advance so as to ensure that the temperature of the mixing process is kept stable.
A first metering pump 2 is arranged on an anaerobic digestion liquid transmission pipeline 18 between the filtering system 1 and the distilled water transmission pipeline 19.
The filtering system 1 adopts 10-mesh and 30-mesh stainless steel replaceable screens to be arranged in the filtering box, so that double-stage filtering of the fermentation liquor is realized.
The working principle is as follows:
anaerobic digestion liquid flows out from a sampling port of an anaerobic fermentation tank and firstly passes through a filtering system 1, the filtering system 1 adopts 10-mesh and 30-mesh stainless steel replaceable screen double-stage filtering, filtered fermentation liquid is pumped into a diluting and mixing system 3 through a first metering pump 2, distilled water is also added into the diluting and mixing system 3 through a second metering pump 4, the anaerobic digestion liquid is uniformly mixed and diluted to a set multiple (the multiple can be set in 8-20) and then is added into a detection tank 5, and a thermometer 6, a pH meter 7, a conductivity meter 8, an ORP sensor 9, an NH sensor 9 and an NH sensor are respectively arranged at the upper end of the detection tank 54 N sensor 10, COD sensor 11 and VFA sensor 12; the outer wall of the detection tank 5 is wrapped with an electric heating heat preservation belt 13, and the temperature is regulated and controlled by a temperature control device 14, so that the temperature in the detection tank 5 is consistent with the temperature in the anaerobic fermentation tank; the fermentation liquor end is provided with a first temperature sensor 15, the distilled water end is provided with a second temperature sensor 16, and the temperature of the fermentation liquor is detected and fed back to a distilled water heater 17 to preheat distilled water in advance, so that the temperature of the fermentation liquor and the distilled water in the mixing process is kept stable.
All detection data are converted by the signal converter and then transmitted to the cloud end in a wireless mode, and the online monitoring software system reads the data from the cloud end. After the detection is finished, the liquid in the detection tank 5 is automatically emptied, distilled water is added for cleaning for 1 time, then distilled water is added to the set scale, and the probe of the sensor is kept to be completely soaked in the distilled water. After the detection, the filter screen was back-washed with distilled water for 1 time to keep the screen clean.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.
Claims (6)
1. The utility model provides a movable anaerobic fermentation on-line monitoring integrated device which characterized in that: including filtration system (1), dilute hybrid system (3), detection jar (5), distilled water heater (17), data acquisition system and temperature control device (14), filtration system (1) connects gradually through anaerobism digestive juice transmission pipeline (18) and dilutes hybrid system (3) and detection jar (5), the top side of detection jar (5) is equipped with data acquisition system and temperature control device (14) respectively, anaerobic digestive juice transmission pipeline (18) between filtration system (1) and the dilution hybrid system (3) are connected with distilled water heater (17) through distilled water transmission pipeline (19), distilled water transmission pipeline (19) are equipped with second temperature sensor (16) and second measuring pump (4) between from distilled water heater (17) to anaerobic digestive juice transmission pipeline (18) in proper order.
2. The integrated device for on-line monitoring of movable anaerobic fermentation according to claim 1, characterized in that: the data acquisition system comprises a thermometer (6), a pH meter (7), a conductivity meter (8), an ORP sensor (9) and NH4-an N sensor (10), a COD sensor (11), a VFA sensor (12), the thermometer (6), pH meter (7), conductivity meter (8), ORP sensor (9), NH4-the N sensor (10), the COD sensor (11) and the VFA sensor (12) are connected into the test tank (5) through test holes of the test tank (5), respectively.
3. The integrated device for on-line monitoring of movable anaerobic fermentation according to claim 1 or 2, characterized in that: the outer wall of the detection tank (5) is wrapped with an electric heating insulation belt (13), the electric heating insulation belt (13) is electrically connected with a temperature control device (14), and the temperature of the electric heating insulation belt (13) is regulated and controlled through the temperature control device (14).
4. The integrated device for on-line monitoring of movable anaerobic fermentation according to claim 1, characterized in that: the filter system (1) is connected with a first temperature sensor (15) through an anaerobic digestion liquid inlet end of an anaerobic digestion liquid transmission pipeline (18).
5. The integrated device for on-line monitoring of movable anaerobic fermentation according to claim 1 or 4, characterized in that: a first metering pump (2) is arranged on an anaerobic digestion liquid transmission pipeline (18) between the filtering system (1) and the distilled water transmission pipeline (19).
6. The integrated device for monitoring the movable anaerobic fermentation online according to claim 5, characterized in that: the filtering system (1) adopts 10-mesh and 30-mesh stainless steel replaceable screens to be arranged in the filtering box so as to carry out double-stage filtering on the fermentation liquor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022996575.7U CN214300114U (en) | 2020-12-15 | 2020-12-15 | Movable anaerobic fermentation on-line monitoring integrated device |
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| CN202022996575.7U CN214300114U (en) | 2020-12-15 | 2020-12-15 | Movable anaerobic fermentation on-line monitoring integrated device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216502A (en) * | 2021-12-08 | 2022-03-22 | 中国热带农业科学院南亚热带作物研究所 | Anaerobic digestion automatic monitoring and intelligent control system and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216502A (en) * | 2021-12-08 | 2022-03-22 | 中国热带农业科学院南亚热带作物研究所 | Anaerobic digestion automatic monitoring and intelligent control system and device |
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