CN219824174U - Multi-electrode continuous flow electrochemical anaerobic digestion methane production system - Google Patents
Multi-electrode continuous flow electrochemical anaerobic digestion methane production system Download PDFInfo
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- CN219824174U CN219824174U CN202320423612.6U CN202320423612U CN219824174U CN 219824174 U CN219824174 U CN 219824174U CN 202320423612 U CN202320423612 U CN 202320423612U CN 219824174 U CN219824174 U CN 219824174U
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- 230000029087 digestion Effects 0.000 title claims abstract description 43
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract description 24
- 238000004519 manufacturing process Methods 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000004321 preservation Methods 0.000 claims abstract description 15
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 12
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 6
- 230000000696 methanogenic effect Effects 0.000 claims description 3
- 238000000855 fermentation Methods 0.000 abstract description 6
- 230000004151 fermentation Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000005416 organic matter Substances 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 11
- 230000033228 biological regulation Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model discloses a multi-electrode continuous flow electrochemical anaerobic digestion methane generating system, which mainly comprises an anaerobic fermentation unit, an electrochemical unit, a wet gas storage unit and a constant-temperature water bath heat preservation unit, wherein when the system works, a peristaltic pump is used for adjusting the flow speed according to the designated water conservancy detention time to pump a material liquid into a digestion tank body for fermentation, the fermented material liquid flows out through a water seal, and the gas-liquid separation is realized through the existence of the water seal; the fermentation temperature is controlled by a constant-temperature water bath heat preservation unit, the constant-temperature water bath is performed in a circulating heating mode, and the temperature is controlled by a temperature control heater; methane generated by fermentation is stored in a gas hood in a positive pressure gas collection mode; the electrolytic voltage of the anode and the cathode is obtained by resistor voltage division; the system can automatically feed, control electrolysis voltage, control water retention time, control fermentation temperature, greatly reduce cost, regulate and control parameters more quickly, and has higher methane conversion rate and organic matter degradation rate, high benefit, strong environmental adaptability and environmental friendliness.
Description
Technical Field
The utility model relates to the field of methane production by an electrochemical anaerobic digestion system, in particular to a system of an anaerobic digestion unit, an electrochemical unit, a wet gas storage unit and a constant-temperature water bath heat preservation unit.
Background
Electrochemical anaerobic digestion is a technology for producing methane by electrolysis-assisted anaerobic digestion and promoting intermediate products (such as carbon dioxide, organic acid and alcohol which cannot be directly utilized by methanogenic bacteria, and the like) in the anaerobic digestion process to be further converted into methane, but the electrochemical anaerobic digestion technology has key technical problems of difficult control of fermentation parameters, poor environmental adaptability, and the like, and finally the methane conversion rate is influenced, so that the optimization of the system structure is a key ring in the electrochemical anaerobic digestion technology.
Disclosure of Invention
The utility model aims to provide a multi-electrode continuous flow electrochemical anaerobic digestion methanogenesis system, which utilizes multiple electrolysis of a plurality of electrodes to further improve methane conversion rate and organic matter degradation rate, adopts a continuous flow feeding mode to realize automatic feeding, saves labor cost of manual feeding, ensures full mixing of feed liquid in a digestion tank body, controls hydraulic retention time by flow rate, realizes gas-liquid separation by water seal, maintains required digestion temperature by a constant-temperature water bath heat preservation unit, controls electrolysis voltage by a divider resistor, and realizes rapid parameter regulation.
The utility model is mainly realized by the following technical scheme, and the multi-electrode continuous flow electrochemical anaerobic digestion methanogenesis system is characterized in that: the device mainly comprises an electrolytic power supply, a wiring terminal, a wire, a divider resistor, a gas flow meter of a gas conduit, a gas hood, a water storage barrel, a discharge port, a water seal, a circulating pump, a temperature control heater, a water bath water inlet, a circulating hot water pipe, a feed inlet, a peristaltic pump, a water bath heat preservation layer, a digestion tank body, a water bath water outlet, an anode, a cathode, a sealing cover, an electrode buckle and a feed liquid conduit;
the digestion tank body is sealed by a sealing cover, the feeding hole is connected with a peristaltic pump, the peristaltic pump is communicated with one end of a feed liquid conduit, the other end of the feed liquid conduit passes through a water bath heat insulation layer to be communicated with the digestion tank body, the digestion tank body passes through the feed liquid conduit to be communicated with a water seal through the water bath heat insulation layer, the top end of the water seal is provided with a discharging hole, and the position of the discharging hole is lower than the sealing cover and higher than the feeding hole;
the electrolytic power supply is connected with a lead through a connecting terminal, the lead transmits electric energy to the divider resistor, the anode, the cathode and the electrode are fastened and fixed on the sealing cover and are arranged in the digestion tank body, the anode is connected with the high potential end of the divider resistor, and the cathode is connected with the low potential end of the divider resistor;
the right end of the gas conduit is fixed on the sealing cover and communicated with the digestion tank body, the left end of the gas conduit is communicated with the gas flowmeter, the gas flowmeter is communicated with the gas cover through the gas conduit, and the gas cover is arranged in the water storage barrel;
the temperature control heater is communicated with the left end of the hot water pipe, the right end of the hot water pipe is communicated with the water bath water outlet of the heat preservation layer, the heater is also communicated with the circulating pump, and the circulating pump is communicated with the water bath water inlet of the water bath heat preservation layer.
The beneficial effects of the utility model are as follows: the methane conversion rate and the organic matter degradation rate are improved, continuous automatic feeding is realized, and rapid parameter regulation and control are realized.
Drawings
Fig. 1: schematic diagram of a multi-electrode continuous flow electrochemical anaerobic digestion methanogenic system.
Detailed Description
The utility model discloses a multi-electrode continuous flow electrochemical anaerobic digestion methanogenesis system, which is described in detail below with reference to the attached drawings: as shown in figure 1, the multi-electrode continuous flow electrochemical anaerobic digestion methanogenesis system mainly comprises an electrolysis power supply 1, a wiring terminal 2, a lead 3, voltage dividing resistors 4, 5, 6, 7, 8, 9 and 10, gas conduits 11 and 42, a gas flowmeter 12, a gas hood 13, a water storage barrel 14, a discharge port 15, a water seal 16, a circulating pump 17, a temperature control heater 18, a water bath water inlet 19, a circulating hot water pipe 20, a feed inlet 21, a peristaltic pump 22, a water bath heat preservation layer 23, a digestion tank body 24, a water bath water outlet 25, anodes 26, 27, 28, 29, 30, 31, 32, cathodes 33, 34, 35, 36, 37, 38 and 39, a sealing cover 40, an electrode buckle 41 and feed liquid conduits 43 and 44.
When the anaerobic digestion unit works, the digestion tank body 24 is sealed by the sealing cover 40, the feeding hole 21 is connected with the peristaltic pump 22, the peristaltic pump 22 is communicated with the right end of the feed liquid guide pipe 43, the left end of the feed liquid guide pipe 43 passes through the water bath heat insulation layer 23 and is communicated with the digestion tank body 24, the digestion tank body 24 passes through the water bath heat insulation layer 23 and is communicated with the water seal 16 through the feed liquid guide pipe 44, the top end of the water seal 16 is provided with the discharging hole 15, the position of the discharging hole 15 is lower than the sealing cover 40 and higher than the feeding hole 21, the lower feeding and the upper feeding of feed liquid are ensured, an air interlayer is reserved between the digestion tank body 24 and the sealing cover 40 to realize gas-liquid separation, when the peristaltic pump 22 is electrified, the feed liquid is continuously pumped into the digestion tank body 24 to realize automatic continuous feeding, and the flow rate of the peristaltic pump 22 can be adjusted to control the water conservancy detention time.
When the electrochemical unit works, the electrolytic power supply 1 is connected with the lead 3 through the connecting terminal 2, the lead 3 transmits electric energy to the voltage dividing resistors 4, 5, 6, 7, 8, 9 and 10, the resistance values of the voltage dividing resistors 4, 5, 6, 7, 8, 9 and 10 are equal, the anodes 26, 27, 28, 29, 30, 31 and 32 and the cathodes 33, 34, 35, 36, 37, 38 and 39 are fixed on the sealing cover 40 by the electrode fastener 41 and are arranged in the digestion tank body 24, the anodes 26, 27, 28, 29, 30, 31 and 32 are connected with the high potential ends of the voltage dividing resistors 4, 5, 6, 7, 8, 9 and 10, the cathodes 33, 34, 35, 36, 37, 38 and 39 are connected with the low potential ends of the voltage dividing resistors 4, 5, 6, 7, 8, 9 and 10, respectively, the anode 26 is connected with the high potential ends of the voltage dividing resistor 10, the cathode 33 is connected with the low potential ends of the voltage dividing resistor 10, anode 27 is connected to the high potential end of voltage dividing resistor 9, cathode 34 is connected to the low potential end of voltage dividing resistor 9, anode 28 is connected to the high potential end of voltage dividing resistor 8, cathode 35 is connected to the low potential end of voltage dividing resistor 8, anode 29 is connected to the high potential end of voltage dividing resistor 7, cathode 36 is connected to the low potential end of voltage dividing resistor 7, anode 30 is connected to the high potential end of voltage dividing resistor 6, cathode 37 is connected to the low potential end of voltage dividing resistor 6, anode 31 is connected to the high potential end of voltage dividing resistor 5, cathode 38 is connected to the low potential end of voltage dividing resistor 5, anode 32 is connected to the high potential end of voltage dividing resistor 4, cathode 39 is connected to the low potential end of voltage dividing resistor 4, when electrolytic power supply 1 applies voltage to voltage dividing resistors 4, 5, 6, 7, 8, 9, 10, the voltages at the ends of voltage dividing resistors 4, 5, 6, 7, 8, 9, 10 are equal, the voltage obtained by the electric pairs of each group of anode and cathode anode 26 and cathode 33, anode 27 and cathode 34, anode 28 and cathode 35, anode 29 and cathode 36, anode 30 and cathode 37, anode 31 and cathode 38, anode 32 and cathode 39 is equal to the voltage at two ends of a voltage dividing resistor connected in parallel with the voltage dividing resistor, the electrolysis voltage can be regulated according to the electrolysis power supply 1, and the regulation of the electrolysis voltage can be implemented for any material liquid with any property so as to achieve the best digestion performance.
When the wet gas storage unit works, the right end of the gas conduit 11 is fixed on the sealing cover 40 and is communicated with the digestion tank body 24, the left end of the gas conduit 11 is communicated with the gas flowmeter 12, the gas flowmeter 12 is communicated with the gas hood 13 through the gas conduit 42, the gas hood 13 is arranged in the water storage barrel 14, and after the feed liquid is digested in the digestion tank body 24 to generate methane, the gas enters the gas hood 13 through the gas conduit 11, the gas flowmeter 12 and the gas conduit 42 to be stored.
When the constant temperature water bath heat preservation unit works, the temperature control heater 18 is communicated with the left end of the hot water pipe 20, the right end of the hot water pipe 20 is communicated with the water bath water outlet 25 of the heat preservation layer 23, the heater 18 is also communicated with the circulating pump 17, the circulating pump 17 is communicated with the water bath water inlet 19 of the water bath heat preservation layer 23, when the circulating pump is electrified, after the temperature control heater 18 heats water to a specified temperature, the circulating pump 17 pumps the hot water into the water bath heat preservation layer 23 through the water bath water inlet 19, and then flows back into the heater 18 through the water bath water outlet 25 and the hot water pipe 20, so that the circulating heating is realized, the temperature of the temperature control heater can be specified to meet the temperature required by digestion, and the temperature regulation and control can be implemented under any environmental conditions.
Claims (1)
1. A multi-electrode continuous flow electrochemical anaerobic digestion methanogenic system, characterized in that: the device mainly comprises an electrolysis power supply (1), a wiring terminal (2), a lead (3), voltage dividing resistors (4, 5, 6, 7, 8, 9 and 10), gas conduits (11 and 42), a gas flowmeter (12), a gas cover (13), a water storage barrel (14), a discharge port (15), a water seal (16), a circulating pump (17), a temperature control heater (18), a water bath water inlet (19), a circulating hot water pipe (20), a feed inlet (21), a peristaltic pump (22), a water bath heat preservation layer (23), a digestion tank body (24), a water bath water outlet (25), anodes (26, 27, 28, 29, 30, 31 and 32), cathodes (33, 34, 35, 36, 37, 38 and 39), sealing covers (40), electrode buckles (41) and feed liquid conduits (43 and 44);
the digestion tank body (24) is sealed by the sealing cover (40), the feeding hole (21) is connected with the peristaltic pump (22), the peristaltic pump (22) is communicated with one end of the feed liquid conduit (43), the other end of the feed liquid conduit (43) passes through the water bath heat insulation layer (23) to be communicated with the digestion tank body (24), the digestion tank body (24) passes through the water bath heat insulation layer (23) to be communicated with the water seal (16) through the feed liquid conduit (44), the top end of the water seal (16) is provided with the discharge hole (15), and the position of the discharge hole (15) is lower than the sealing cover (40) and higher than the feeding hole (21);
the electrolysis power supply (1) is connected with a lead (3) through a connecting terminal (2), the lead (3) transmits electric energy to the voltage dividing resistors (4, 5, 6, 7, 8, 9, 10), the anode (26, 27, 28, 29, 30, 31, 32) and the cathode (33, 34, 35, 36, 37, 38, 39) are fixed on the sealing cover (40) by an electrode buckle (41) and are arranged in the digestion tank body (24), the anode (26, 27, 28, 29, 30, 31, 32) is connected with the high potential end of the voltage dividing resistors (4, 5, 6, 7, 8, 9, 10), and the cathode (33, 34, 35, 36, 37, 38, 39) is connected with the low potential end of the voltage dividing resistors (4, 5, 6, 7, 8, 9, 10);
the right end of the gas conduit (11) is fixed on the sealing cover (40) and is communicated with the digestion tank body (24), the left end of the gas conduit (11) is communicated with the gas flowmeter (12), the gas flowmeter (12) is communicated with the gas cover (13) through the gas conduit (42), and the gas cover (13) is arranged in the water storage barrel (14);
the temperature control heater (18) is communicated with the left end of the hot water pipe (20), the right end of the hot water pipe (20) is communicated with the water bath water outlet (25) of the heat preservation layer (23), the heater (18) is also communicated with the circulating pump (17), and the circulating pump (17) is communicated with the water bath water inlet (19) of the water bath heat preservation layer (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320423612.6U CN219824174U (en) | 2023-03-08 | 2023-03-08 | Multi-electrode continuous flow electrochemical anaerobic digestion methane production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320423612.6U CN219824174U (en) | 2023-03-08 | 2023-03-08 | Multi-electrode continuous flow electrochemical anaerobic digestion methane production system |
Publications (1)
| Publication Number | Publication Date |
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| CN219824174U true CN219824174U (en) | 2023-10-13 |
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|---|---|---|---|
| CN202320423612.6U Active CN219824174U (en) | 2023-03-08 | 2023-03-08 | Multi-electrode continuous flow electrochemical anaerobic digestion methane production system |
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| Country | Link |
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| CN (1) | CN219824174U (en) |
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2023
- 2023-03-08 CN CN202320423612.6U patent/CN219824174U/en active Active
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