CN102559490B - Device and method for producing biogas by supplying boiler tail gas as heat source to anaerobic tank - Google Patents
Device and method for producing biogas by supplying boiler tail gas as heat source to anaerobic tank Download PDFInfo
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- CN102559490B CN102559490B CN2012100245156A CN201210024515A CN102559490B CN 102559490 B CN102559490 B CN 102559490B CN 2012100245156 A CN2012100245156 A CN 2012100245156A CN 201210024515 A CN201210024515 A CN 201210024515A CN 102559490 B CN102559490 B CN 102559490B
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- 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
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- 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
- C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention discloses a biogas production device, and especially a device for producing biogas by supplying boiler tail gas as a heat source to an anaerobic tank in wine brewing process. The invention provides a device for producing biogas by supplying boiler tail gas as a heat source to an anaerobic tank, which can increase the energy utilization rate, comprises an anaerobic tank, and also comprises a low-temperature flue heat exchanger, a heat exchanger disposed on the anaerobic tank, a conveying pipeline, and a heat exchange cycle motor disposed on the conveying pipeline; a high-temperature tail gas input port, a high-temperature heat source output interface, and a medium inlet are disposed on the low-temperature flue heat exchanger; the high-temperature heat source output interface is communicated with an inlet of the heat exchanger through the conveying pipeline. The anaerobic tank is heated by boiler high-temperature tail gas, which not only makes use of boiler waste heat, but also makes use of waste residues in wine brewing process; not only the environment is protected, but also a lot of biogas is obtained; and the method for waste treatment in wine brewing process is the best of both worlds.
Description
Technical field
The present invention relates to a kind of methane production device, especially a kind of in the wine brewing process boiler exhaust gas supply with the device that anaerobic pond produces biogas as thermal source.In addition, the invention still further relates to a kind of biogas production method, especially a kind of boiler exhaust gas is supplied with the method that anaerobic pond produces biogas as thermal source.
Background technology
In the present solid fermentation by pure grains White wine brewing process, still-process needs a large amount of external sources to supply with the energy (Sweet natural gas, coal etc.) heating that acts as a fuel, the heating residual water produces the vapor distillation vinasse and produces liquor, process combustion has a large amount of high-temperature tail gas to discharge, under existing equipment and method, high-temperature tail gas directly discharges, cause the tropical island effect contaminate environment, existing wine-making technology, a large amount of sewage (residual waters is arranged in the wine brewing process, place flushing sewage, the red water in pond, cellar for storing things etc.) discharge, every day while, the useless grain of every group of nearly rice steamer of per ten rice steamers abandoned, the present competent manufacturing enterprise of part all passes through microbiological anaerobic fermentative processing sewage generation biogas, and (high-temperature anaerobic fermentation is a kind of fermentation mode that produces biogas amount maximum in anaerobically fermenting, but the high temperature anaerobic bacterium is higher 55 ± 1 ℃ to temperature requirement in the fermentor tank, if very high by external source heat energy heating cost, there are not promotional value and practical value), abandon useless grain part and enter the cultivation industry as feed, waste so a large amount of energy.
Summary of the invention
Technical problem to be solved by this invention provides a kind of boiler exhaust gas that improves energy utilization rate and supplies with the device that anaerobic pond produces biogas as thermal source.
The present invention solves the boiler exhaust gas that its technical problem adopts and supplies with the device that anaerobic pond produces biogas as thermal source, comprise anaerobic pond, also comprise the low temperature flue interchanger, be arranged on interchanger, the transport pipe on the anaerobic pond and be arranged on heat exchange circulation motor on the transport pipe, be provided with high-temperature tail gas input aperture, high temperature heat source output interface and medium inlet on the described low temperature flue interchanger, described transport pipe is communicated with the import of described high temperature heat source output interface and described interchanger.
Further be that the medium inlet on the described low temperature flue interchanger and the heat exchanger exit on the described interchanger are interconnected.
Further be, also comprise the thermal source surge tank, be provided with on the described thermal source surge tank and store import and store outlet, be respectively arranged with inlet ductwork and export pipeline in described storage import and the described storage outlet, described inlet ductwork and export pipeline are connected with described transport pipe respectively, take the flow direction of transport pipe medium as reference, described export pipeline and inlet ductwork separately with the link position of described transport pipe respectively before described heat exchange circulation motor and afterwards, the connectivity part of described transport pipe and described export pipeline is provided with outlet reversing valve group, and the connectivity part of described transport pipe and described inlet ductwork is provided with import reversing valve group.
Further be, also comprise central controller and temperature sensor, described outlet reversing valve group and described import reversing valve group are by described central controller controls, and described temperature sensor is arranged in the anaerobic pond and with described central controller and is electrically connected.
Further be, described import reversing valve group comprises the thermal source input control valve that is arranged on the inlet ductwork and is positioned at high temperature heat source input control valve on the described transfer line and after described inlet ductwork, and described outlet reversing valve group comprises the thermal source output control valve that is arranged on the export pipeline and is positioned at high temperature heat source output control valve on the described transfer line and before described export pipeline.
Further be, the top of described thermal source surge tank also is provided with safe evacuated tube, also is provided with system's blowdown control valve on the described transport pipe.
Further be, also comprise thermal source surge tank high temperature heat source deposit pipeline, described heat exchanger exit is communicated with described thermal source surge tank by described thermal source surge tank high temperature heat source deposit pipeline.
Another technical problem that will solve of the present invention provides a kind of boiler exhaust gas that improves energy utilization rate and supplies with the method that anaerobic pond produces biogas as thermal source.
The present invention also provides a kind of boiler exhaust gas to supply with the method that anaerobic pond produces biogas as thermal source, may further comprise the steps:
The tail gas of boiler utilizes the medium in the tail gas heating low temperature flue interchanger by being arranged on the low temperature flue interchanger of boiler exhaust gas relief outlet in A, the still-process of will making wine;
B, thereby the medium after will heating is delivered to interchanger through transport pipe and carries out heat exchange with anaerobic pond again, makes the reach a high temperature leavening temperature of anerobe of sewage and waste dregs liquid in the anaerobic pond;
C, will again heat through medium back flow to the low-temperature flue gas interchanger of heat exchange at last.
Further be that in the B step, the mobile of medium is to control in the following manner:
I, when the anaerobic pond temperature is higher than set(ting)value, conversion import reversing valve group so that the low temperature flue interchanger is communicated with thermal source surge tank on being arranged on transport pipe, and disconnects with interchanger, lay in thereby medium after the heating is flow in the thermal source surge tank, stopped the heating to anaerobic pond; When the anaerobic pond temperature was lower than set(ting)value, conversion import reversing valve group so that low temperature flue interchanger and the disconnection of thermal source surge tank, and was communicated with interchanger, and anaerobic pond begins normal heating;
II, be lower than set(ting)value when the anaerobic pond temperature, and when the low temperature flue interchanger is in halted state, conversion outlet reversing valve group, so that low temperature flue interchanger and thermal source surge tank, interchanger disconnect, the thermal source surge tank with detest interchanger and be communicated with, utilize the medium of laying in the thermal source surge tank to provide thermal source for interchanger, thus the heating anaerobic pond.
Further be that in the flow process of control agent, central controller 20 is controlled import reversing valve group and outlet reversing valve group automatically according to the temperature of anaerobic pond 22 and the running status of low temperature flue interchanger 4.
The invention has the beneficial effects as follows: utilize and adopt boiler high temperature tail gas to heat anaerobic pond; the waste heat of boiler was utilized; waste residue in the wine brewing process is utilized; both protected environment; also having obtained a large amount of biogas, is the method that makes the best of both worlds that refuse is processed in the wine brewing process.On transport pipe, the heat exchange circulation motor can also be set, flow thereby make heat exchange medium obtain enough power.The cryogenic media of the outlet of interchanger can also be recycled to again heating cycle utilization in the low temperature flue interchanger, has so just avoided the waste of heat exchange medium.The thermal source surge tank can also be set between low temperature flue interchanger and anaerobic pond cushion, namely unnecessary heat is kept in the thermal source surge tank by medium, carries out complementary heating by the thermal source surge tank in the situation of shortage of heat.All valves all can be controlled by central controller, with handled easily.Can also come acquired information by temperature sensor, so that central controller can come by-pass valve control according to temperature conditions, realize the automatically purpose of control.
Description of drawings
Fig. 1 is structural representation of the present invention;
Component among the figure, position and numbering: boiler exhaust gas relief outlet 1, boiler exhaust gas relief outlet joint flange 2, low temperature flue interchanger joint flange 3, low temperature flue interchanger 4, high temperature heat source output interface 5, high temperature heat source output control valve 6, thermal source output control valve 7, heat exchange circulation motor 8, thermal source input control valve 9, high temperature heat source input control valve 10, transport pipe 11, system's blowdown control valve 12, medium inlet 13, low temperature reflux pipeline 14, inlet ductwork 15, thermal source surge tank 16, thermal source surge tank high temperature heat source deposit pipeline 17, exhaust outlet 18, safe evacuated tube 19, central controller 20, heat exchanger exit 21, anaerobic pond 22, interchanger 23.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the present invention includes anaerobic pond 22, also comprise low temperature flue interchanger 4, be arranged on interchanger 23, the transport pipe 11 on the anaerobic pond 22 and be arranged on heat exchange circulation motor 8 on the transport pipe 11, be provided with high-temperature tail gas input aperture, high temperature heat source output interface 5 and medium inlet 13 on the described low temperature flue interchanger 4, described transport pipe 11 is communicated with the import of described high temperature heat source output interface 5 and described interchanger 23.When mounted, the low temperature flue interchanger joint flange 3 of low temperature flue interchanger 4 is connected on the boiler exhaust gas relief outlet joint flange 2, thereby so that low temperature flue interchanger 4 is interconnected with boiler exhaust gas relief outlet 1, the tail gas of boiler generation will pass through low temperature flue interchanger 4 thus, thereby the heat-conducting medium in the heating low temperature flue interchanger 4, usually water gets final product, heat-conducting medium namely enters into interchanger 23 on the anaerobic pond 22 by transport pipe 11 after being heated, utilize interchanger 23 to heat anaerobic pond 22, thereby keep the temperature of anaerobic pond 22.Therefore in the time of in being used in wine brewing, the useless grain that wine brewing produces and sewage just can be used for anaerobic pond 22 fermentations and produce biogas, and the using waste heat from tail gas of boiler then can be used for heating anaerobic pond 22.The energy and raw-material utilising efficiency have so just been improved.Heat exchange circulation motor 8 can make heat-conduction medium flow fully, and the heating efficiency that can regulate by speed change anaerobic pond 22.
For the recycle heat-conduction medium, as shown in Figure 1, the medium inlet 13 on the described low temperature flue interchanger 4 is interconnected with the heat exchanger exit 21 on the described interchanger 23.Medium just can form effectively circulation like this, in 4 heating of low temperature flue interchanger, and heat release in interchanger 23, the cryogenic media after the heat release flows to low temperature flue interchanger 4 again.
In order to lay in unnecessary heat, as shown in Figure 1, also comprise thermal source surge tank 16, be provided with on the described thermal source surge tank 16 and store import and store outlet, be respectively arranged with inlet ductwork 15 and export pipeline in described storage import and the described storage outlet, described inlet ductwork 15 and export pipeline are connected with described transport pipe 11 respectively, take the flow direction of transport pipe 11 medium as reference, described export pipeline and inlet ductwork 15 separately with the link position of described transport pipe 11 respectively before described heat exchange circulation motor 8 and afterwards, described transport pipe 11 is provided with outlet reversing valve group with the connectivity part of described export pipeline, and described transport pipe 11 is provided with import reversing valve group with the connectivity part of described inlet ductwork 15.Can utilize in the following ways said structure to lay in unnecessary heat and extra heat is provided when shortage of heat:
A, when anaerobic pond 22 excess Temperature, conversion import reversing valve group, so that transport pipe 11 is communicated with inlet ductwork 15, and disconnect with interchanger 23, will flow in the thermal source surge tank 16 with the medium of amount of heat thus and store, and anaerobic pond 22 does not obtain replenishing of new heat, thereby can reduce temperature.When anaerobic pond 22 is lower than the temperature of setting, then change import reversing valve group, so that transport pipe 11 is communicated with interchanger 23, disconnects with inlet ductwork 15, and then be anaerobic pond 22 heat supplies, guarantee that anaerobic pond 22 is in the temperature range of setting.
B, cross when the anaerobic pond temperature and to be lower than the required limit, and low temperature flue interchanger 4 quits work, namely boiler is out of service, when exporting without high temperature heat source, start outlet reversing valve group this moment, reinstate thermal source surge tank 16 deposit thermals source, with beginning to start anaerobic pond 22 limit cold operations.
For the ease of control, as shown in Figure 1, also comprise central controller 20, described outlet reversing valve group and described import reversing valve group are by described central controller 20 controls.So easily operation.All right set temperature sensor, described temperature sensor is arranged in the anaerobic pond 22 and with described central controller 20 and is electrically connected.Set required temperature range at central controller 20, be higher than or be lower than this scope in case temperature sensor detects temperature in the anaerobic pond 22, then utilize central controller 20 automatically control import reversing valve groups or outlet reversing valve groups.Reach the purpose of automatic control.
Concrete, as shown in Figure 1, described import reversing valve group comprises the thermal source input control valve 9 that is arranged on the inlet ductwork 15 and is positioned on the described transfer line and the high temperature heat source input control valve 10 after described inlet ductwork 15, and described outlet reversing valve group comprises the thermal source output control valve 7 that is arranged on the export pipeline and is positioned at high temperature heat source output control valve 6 on the described transfer line and before described export pipeline.
For the pressure of control of heat source surge tank 16, the top of described thermal source surge tank 16 also is provided with safe evacuated tube 19.When the hot reserve case surpasses when the limit is set, the waste heat that oversteps the extreme limit is discharged by the safe evacuated tube 19 of hot reserve case with the form of steam, has realized the operation of whole system with no pressure, safety, reliable.
Concrete, as shown in Figure 1, also comprising thermal source surge tank high temperature heat source deposit pipeline 17, described heat exchanger exit 21 is communicated with described thermal source surge tank 16 by described thermal source surge tank high temperature heat source deposit pipeline 17.The medium that advanced interchanger 22 rear comparatively high tempss can also directly be recovered to thermal source surge tank 16, thus effective storage power.
For the ease of cleaning equipment, as shown in Figure 1, also be provided with system's blowdown control valve 12 on the described transport pipe 11.In stop cleaning, get final product opening system blowdown control valve 12, pass into the scavenging solution cleaning equipment.
Method provided by the invention may further comprise the steps:
The tail gas of boiler utilizes the medium in the tail gas heating low temperature flue interchanger 4 by being arranged on the low temperature flue interchanger 4 of boiler exhaust gas relief outlet 1 in A, the still-process of will making wine; Under normal conditions, medium adopts water to get final product;
B, thereby the medium after will heating is delivered to interchanger 23 through transport pipe 11 and carries out heat exchange with anaerobic pond 22 again, makes the reach a high temperature leavening temperature of anerobe of sewage and waste dregs liquid in the anaerobic pond 22; Leavening temperature is decided according to anaerobic species in the concrete anaerobic pond 22, to reach the optimum temps that produces maximum biogas amount.The conveying of medium can be adopted heat exchange circulation motor 8, thereby is convenient to the flow velocity of control agent; In this process, waste heat tail gas and waste material that wine brewing produces have all obtained effective utilization, and waste heat tail gas provides heat, and sewage is high with the efficient that useless grain produces biogas under high-temperature anaerobic fermentation, biogas itself can also be used for boiler heating or other purposes, has just reclaimed thus a large amount of energy;
C, will again heat through medium back flow to the low-temperature flue gas interchanger 4 of heat exchange at last.So just make medium obtain recycle, reduced the waste of medium.
In order to guarantee that anaerobic pond 22 is in the state of constant temperature, in the B step, the mobile of medium is to control in the following manner:
I, when anaerobic pond 22 temperature are higher than set(ting)value, conversion import reversing valve group, so that low temperature flue interchanger 4 is communicated with thermal source surge tank 16 on being arranged on transport pipe 11, and disconnect with interchanger 23, thereby make the medium after the heating flow into deposit in the thermal source surge tank 16, stopped the heating to anaerobic pond 22, when thermal source surge tank 16 surpasses when the limit is set, the waste heat that oversteps the extreme limit is discharged by the safe evacuated tube 19 of thermal source surge tank 16 with the form of steam, realized the operation of whole system with no pressure, safety, reliable; When anaerobic pond 22 temperature are lower than set(ting)value, conversion import reversing valve group, so that low temperature flue interchanger 4 disconnects with thermal source surge tank 16, and is communicated with interchanger 23, anaerobic pond 22 begins normal heating;
II, be lower than set(ting)value when the anaerobic pond temperature, and when low temperature flue interchanger 4 is in halted state, conversion outlet reversing valve group, so that low temperature flue interchanger 4 disconnects with thermal source surge tank 16, interchanger 23, thermal source surge tank 16 with detest interchanger 23 and be communicated with, utilize the medium of deposit in the thermal source surge tank 16 to provide thermal source for interchanger 23, thus heating anaerobic pond 22.
Above-mentioned control mode can adopt automatically or manual control mode, preferably adopt automatic control mode, import reversing valve group all links to each other with central controller 20 with outlet reversing valve group, and is subject to the control of central controller 20, set temperature sensor in anaerobic pond 22.Design temperature in central controller 20, for example 55 ℃, and send the running status of low temperature flue interchanger 4 to central controller 20; Central controller 20 is received the temperature that temperature sensor transmits, compare according to 55 ℃ of standard temperatures, and detect the running status of low temperature flue interchanger 4, thereby control according to two kinds of above-mentioned situations, guarantee that anaerobic pond 22 is under the temperature constant state, unnecessary heat is stored by thermal source surge tank 16, be at low temperature flue interchanger 4 and utilize 16 heat supplies of thermal source surge tank in the situation of stopping, and central controller 20 can start anaerobic pond 22 limit cold operations.After adopting the manner control temperature, the temperature of anaerobic pond 22 is in temperature constant state, owing to so that anerobe is in active state for a long time, increased the efficient of high-temperature anaerobic fermentation, has improved the processing efficiency of sewage and useless grain, has improved the output efficiency of biogas.
Claims (8)
1. boiler exhaust gas is supplied with the device that anaerobic pond produces biogas as thermal source, comprise anaerobic pond (22), it is characterized in that: also comprise low temperature flue interchanger (4), be arranged on the interchanger (23) on the anaerobic pond (22), transport pipe (11) and be arranged on heat exchange circulation motor (8) on the transport pipe (11), be provided with the high-temperature tail gas input aperture on the described low temperature flue interchanger (4), high temperature heat source output interface (5) and medium inlet (13), described transport pipe (11) is communicated with the import of described high temperature heat source output interface (5) and described interchanger (23);
Also comprise thermal source surge tank (16), be provided with on the described thermal source surge tank (16) and store import and store outlet, be respectively arranged with inlet ductwork (15) and export pipeline in described storage import and the described storage outlet, described inlet ductwork (15) and export pipeline are connected with described transport pipe (11) respectively, take the flow direction of transport pipe (11) medium as reference, described export pipeline and inlet ductwork (15) separately with the link position of described transport pipe (11) respectively at described heat exchange circulation motor (8) before and afterwards, described transport pipe (11) is provided with outlet reversing valve group with the connectivity part of described export pipeline, and described transport pipe (11) is provided with import reversing valve group with the connectivity part of described inlet ductwork (15).
2. boiler exhaust gas as claimed in claim 1 is supplied with the device that anaerobic pond produces biogas as thermal source, it is characterized in that: the heat exchanger exit (21) on the medium inlet (13) on the described low temperature flue interchanger (4) and the described interchanger (23) is interconnected.
3. boiler exhaust gas as claimed in claim 1 is supplied with the device that anaerobic pond produces biogas as thermal source, it is characterized in that: also comprise central controller (20) and temperature sensor, described outlet reversing valve group and described import reversing valve group are by described central controller (20) control, and described temperature sensor is arranged in the anaerobic pond (22) and with described central controller (20) and is electrically connected.
4. boiler exhaust gas as claimed in claim 1 is supplied with the device that anaerobic pond produces biogas as thermal source, it is characterized in that: described import reversing valve group comprises the thermal source input control valve (9) that is arranged on the inlet ductwork (15) and is positioned on the described transfer line and at described inlet ductwork (15) high temperature heat source input control valve (10) afterwards, and described outlet reversing valve group comprises the thermal source output control valve (7) that is arranged on the export pipeline and is positioned at high temperature heat source output control valve (6) on the described transfer line and before described export pipeline.
5. boiler exhaust gas as claimed in claim 1 is supplied with the device that anaerobic pond produces biogas as thermal source, it is characterized in that: the top of described thermal source surge tank (16) also is provided with safe evacuated tube (19), also is provided with system's blowdown control valve (12) on the described transport pipe (11).
6. boiler exhaust gas as claimed in claim 1 is supplied with the device that anaerobic pond produces biogas as thermal source, it is characterized in that: also comprise thermal source surge tank high temperature heat source deposit pipeline (17), described heat exchanger exit (21) is communicated with described thermal source surge tank (16) by described thermal source surge tank high temperature heat source deposit pipeline (17).
7. boiler exhaust gas is supplied with the method that anaerobic pond produces biogas as thermal source, it is characterized in that: may further comprise the steps:
The tail gas of boiler utilizes the medium in the tail gas heating low temperature flue interchanger (4) by being arranged on the low temperature flue interchanger (4) of boiler exhaust gas relief outlet (1) in A, the still-process of will making wine;
B, the medium after will heating is delivered to interchanger (23) through transport pipe (11) again, thereby carries out heat exchange with anaerobic pond (22), makes the reach a high temperature leavening temperature of anerobe of sewage and waste dregs liquid in the anaerobic pond (22); The mobile of medium is to control in the following manner:
I, when anaerobic pond (22) when temperature is higher than set(ting)value, conversion import reversing valve group, so that low temperature flue interchanger (4) is communicated with thermal source surge tank (16) on being arranged on transport pipe (11), and disconnect with interchanger (23), thereby make the medium after the heating flow into deposit in the thermal source surge tank (16), stopped the heating to anaerobic pond (22); When anaerobic pond (22) when temperature is lower than set(ting)value, conversion import reversing valve group, so that low temperature flue interchanger (4) disconnects with thermal source surge tank (16), and is communicated with interchanger (23), anaerobic pond (22) begins normal heating;
II, be lower than set(ting)value when the anaerobic pond temperature, and low temperature flue interchanger (4) is when being in halted state, conversion outlet reversing valve group, so that low temperature flue interchanger (4) disconnects with thermal source surge tank (16), interchanger (23), thermal source surge tank (16) is communicated with interchanger (23), utilizing the medium of deposit in the thermal source surge tank (16) is that interchanger (23) provides thermal source, thus heating anaerobic pond (22);
C, will again heat through medium back flow to the low-temperature flue gas interchanger (4) of heat exchange at last.
8. boiler exhaust gas as claimed in claim 7 is supplied with the method that anaerobic pond produces biogas as thermal source, it is characterized in that: in the flow process of control agent, central controller (20) is controlled import reversing valve group and outlet reversing valve group automatically according to the temperature of anaerobic pond (22) and the running status of low temperature flue interchanger (4).
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| CN2012100245156A CN102559490B (en) | 2012-02-03 | 2012-02-03 | Device and method for producing biogas by supplying boiler tail gas as heat source to anaerobic tank |
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| CN2012100245156A CN102559490B (en) | 2012-02-03 | 2012-02-03 | Device and method for producing biogas by supplying boiler tail gas as heat source to anaerobic tank |
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| CN105645694B (en) * | 2016-03-22 | 2019-07-05 | 中冶南方工程技术有限公司 | A kind of community's debirs treatment in situ system and method |
| CN107619310B (en) * | 2017-09-08 | 2023-04-28 | 国能龙源电力技术工程有限责任公司 | System and method for recycling coastal power plant warm water |
| CN108862968A (en) * | 2018-07-13 | 2018-11-23 | 常州大学 | A kind of swine waste treatment device and method |
| CN114525196A (en) * | 2022-03-21 | 2022-05-24 | 国能生物发电集团有限公司 | Constant-temperature methane tank high-temperature steam heat pump heating system utilizing waste heat of biomass boiler |
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| CN201362714Y (en) * | 2009-01-12 | 2009-12-16 | 吉林大学 | Heating device for domestic heat supply biogas generating pit |
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| JPS5874195A (en) * | 1981-10-28 | 1983-05-04 | Matsushita Electric Ind Co Ltd | Methane fermentation tank |
| US6663777B2 (en) * | 2002-03-12 | 2003-12-16 | Keith A. Schimel | Apparatus, system, and process for anaerobic conversion of biomass slurry to energy |
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| CN102235660A (en) * | 2011-01-26 | 2011-11-09 | 常州市奥琳斯邦热能设备有限公司 | Tail gas heat exchanger for steam boiler |
| CN202492520U (en) * | 2012-02-03 | 2012-10-17 | 德阳华宇瑞得智能科技有限公司 | Device for generating biogas by feeding boiler tail gas as heat source to anaerobic tank |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201362714Y (en) * | 2009-01-12 | 2009-12-16 | 吉林大学 | Heating device for domestic heat supply biogas generating pit |
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| JP昭58-74195A 1983.05.04 |
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| CN102559490A (en) | 2012-07-11 |
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