CN102559490A - 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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- CN102559490A CN102559490A CN2012100245156A CN201210024515A CN102559490A CN 102559490 A CN102559490 A CN 102559490A CN 2012100245156 A CN2012100245156 A CN 2012100245156A CN 201210024515 A CN201210024515 A CN 201210024515A CN 102559490 A CN102559490 A CN 102559490A
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- interchanger
- thermal source
- anaerobic pond
- transport pipe
- surge tank
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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
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 biogas 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 pure grain liquor by solid fermentation making method; Still-process needs a large amount of external sources to supply with the energy (Sweet natural gas, the coal etc.) heating that acts as a fuel, and the heating residual water produces the vapor distillation vinasse and produces liquor, and process combustion has great amount of high-temperature tail gas to discharge; Under existing equipment and method; High-temperature tail gas directly discharges, and causes the tropical island effect contaminate environment, existing wine-making technology; There is a large amount of sewage (residual water, place flushing sewage, the red water in pond, cellar for storing things etc.) to discharge in the wine brewing process; Simultaneously every day every group of nearly rice steamer of per ten rice steamers useless poor abandoning, at present the competent manufacturing enterprise of part all pass through microbiological anaerobic fermentative processing sewage produce biogas in anaerobically fermenting (high-temperature anaerobic fermentation is a kind of fermentation mode that produces biogas amount maximum, but the high temperature anaerobic bacterium to temperature requirement in the fermentor tank than higher 55 ± 1 ℃; If it is very high through external source heat energy heating cost; Do not have promotional value and practical value), abandon useless poor part and get into the breed industry as feed, waste a large amount of energy like this.
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 the heat exchange circulation motor on the transport pipe; Said low temperature flue interchanger is provided with high-temperature tail gas input aperture, high temperature heat source output interface and medium inlet, and said transport pipe is communicated with the import of said high temperature heat source output interface and said interchanger.
Further be that medium inlet on the said low temperature flue interchanger and the heat exchanger exit on the said interchanger are interconnected.
Further be; Also comprise the thermal source surge tank; Said thermal source surge tank is provided with and stores import and store outlet, is respectively arranged with inlet ductwork and export pipeline in said storage import and the said storage outlet, and said inlet ductwork and export pipeline are connected with said transport pipe respectively; The flow direction with the transport pipe medium is reference; Said export pipeline and inlet ductwork separately with the link position of said transport pipe respectively before said heat exchange circulation motor with afterwards, said transport pipe is provided with the place of connection of said export pipeline and exports the reversing valve group, said transport pipe is provided with import reversing valve group with the place of connection of said inlet ductwork.
Further be, also comprise central controller and TP, said outlet reversing valve group and said import reversing valve group are by said central controller controls, and said TP is arranged in the anaerobic pond and with said central controller and is electrically connected.
Further be; Said import reversing valve group comprises the thermal source input control valve that is arranged on the inlet ductwork and is positioned at the high temperature heat source input control valve on the said transfer line and after said inlet ductwork that said outlet reversing valve group comprises the thermal source output valve that is arranged on the export pipeline and is positioned on the said transfer line and the output of the high temperature heat source before said export pipeline valve.
Further be, the top of said thermal source surge tank also is provided with safe evacuated tube, also is provided with system's blowdown valve on the said transport pipe.
Further be, also comprise thermal source reserve tank high temperature heat source deposit pipeline, said heat exchanger exit is communicated with said thermal source surge tank through said thermal source reserve 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 through 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 anerobes of sewage and waste dregs liquid in the anaerobic pond;
C, medium back flow to the low-temperature flue gas interchanger that will pass through heat exchange at last heat once more.
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 makes the low temperature flue interchanger be communicated with thermal source surge tank on being arranged on transport pipe, and breaks off with interchanger; Lay in thereby medium after the heating is flow in the thermal source surge tank, stopped heating anaerobic pond; When the anaerobic pond temperature was lower than set(ting)value, conversion import reversing valve group made low temperature flue interchanger and thermal source surge tank break off, and is communicated with interchanger that 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 makes low temperature flue interchanger and thermal source surge tank, interchanger break off, the thermal source surge tank with detest interchanger and be communicated with; Utilize the medium of laying in the thermal source surge tank thermal source to be provided 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; Both made the waste heat of boiler be able to utilize; Can make the waste residue in the wine brewing process be able to utilize again; Both having protected environment, and also obtained a large amount of biogas, is the method that makes the best of both worlds of waste treatment in the wine brewing process.Heat exchange circulation motor can also be set on transport pipe, flow thereby make heat exchange medium obtain enough power.The cryogenic media of the outlet of interchanger can also be recycled to heating cycle utilization once more 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, promptly unnecessary heat is kept in the thermal source surge tank through medium, under the situation of shortage of heat, carries out complementary heating through the thermal source surge tank.All valves all can be controlled through central controller, with handled easily.Can also come acquired information through TP, make central controller to come by-pass valve control, realize the purpose of control automatically according to temperature conditions.
Description of drawings
Fig. 1 is a 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 valve 6; Thermal source output 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 valve 12; Medium inlet 13; Low temperature reflux pipeline 14; Inlet ductwork 15; Thermal source surge tank 16; Thermal source reserve 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
Below in conjunction with accompanying drawing the present invention is described further.
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 the heat exchange circulation motor 8 on the transport pipe 11; Said low temperature flue interchanger 4 is provided with high-temperature tail gas input aperture, high temperature heat source output interface 5 and medium inlet 13, and said transport pipe 11 is communicated with the import of said high temperature heat source output interface 5 and said 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 make low temperature flue interchanger 4 and boiler exhaust gas relief outlet 1 be interconnected, the tail gas of boiler generation will pass through low temperature flue interchanger 4 thus, thus the heat-conducting medium in the heating low temperature flue interchanger 4; Usually water gets final product; Heat-conducting medium promptly enters into the interchanger 23 on the anaerobic pond 22 through transport pipe 11 after being heated, utilize interchanger 23 to heat anaerobic pond 22, thereby keeps the temperature of anaerobic pond 22.Therefore in the time of in being used in wine brewing, useless poor and the sewage that wine brewing produces 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 anaerobic pond 22 through speed change.
For the recycle heat-conduction medium, as shown in Figure 1, the medium inlet 13 on the said low temperature flue interchanger 4 is interconnected with the heat exchanger exit 21 on the said 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 once more.
In order to lay in unnecessary heat; As shown in Figure 1; Also comprise thermal source surge tank 16; Said thermal source surge tank 16 is provided with and stores import and store outlet, is respectively arranged with inlet ductwork 15 and export pipeline in said storage import and the said storage outlet, and said inlet ductwork 15 is connected with said transport pipe 11 respectively with export pipeline; The flow direction with transport pipe 11 medium is reference; Said export pipeline and inlet ductwork 15 separately with the link position of said transport pipe 11 respectively before said heat exchange circulation motor 8 with afterwards, said transport pipe 11 is provided with the place of connection of said export pipeline and exports the reversing valve group, said transport pipe 11 is provided with import reversing valve group with the place of connection of said inlet ductwork 15.Adopting following mode is that said structure capable of using is laid in unnecessary heat and extra heat is provided when shortage of heat:
A, when anaerobic pond 22 temperature are too high; Conversion import reversing valve group; Make transport pipe 11 be communicated with, and break off that the medium that has a large amount of heats thus will flow into and store in the thermal source surge tank 16 with interchanger 23 with inlet ductwork 15; 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, make transport pipe 11 be communicated with interchanger 23, break off with inlet ductwork 15, and then be anaerobic pond 22 heat supplies, guarantee that anaerobic pond 22 is in the range of set temperature.
B, cross when the anaerobic pond temperature and to be lower than the required limit, and low temperature flue interchanger 4 quits work, promptly boiler is out of service; When no high temperature heat source is exported; 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, said outlet reversing valve group and said import reversing valve group are by said central controller 20 controls.So easily operation.TP can also be set, and said TP is arranged in the anaerobic pond 22 and with said central controller 20 and is electrically connected.On central controller 20, set required TR, be higher than or be lower than this scope, then utilize central controller 20 control import reversing valve groups or outlet reversing valve groups automatically in case TP detects temperature in the anaerobic pond 22.Reach the purpose of automatic control.
Concrete; As shown in Figure 1; Said 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 said transfer line and the high temperature heat source input control valve 10 after said inlet ductwork 15 that said outlet reversing valve group comprises the thermal source output valve 7 that is arranged on the export pipeline and is positioned on the said transfer line and the output of the high temperature heat source before said export pipeline valve 6.
In order to control the pressure of thermal source surge tank 16, the top of said 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 through hot reserve case safety evacuated tube 19 with the form of steam, has realized that total system do not have the operation of pressure, safety, reliable.
Concrete, as shown in Figure 1, also comprise thermal source reserve tank high temperature heat source deposit pipeline 17, said heat exchanger exit 21 is communicated with said thermal source surge tank 16 through said thermal source reserve tank high temperature heat source deposit pipeline 17.The medium that advanced interchanger 22 back 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 valve 12 on the said transport pipe 11.When shutting down cleaning, can open system's blowdown valve 12, feed 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 through 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 anerobes 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; The waste heat tail gas and the waste material of wine brewing generation have all obtained effective utilization, and waste heat tail gas provides heat, sewage and the useless poor efficient height that produces biogas under high-temperature anaerobic fermentation; Biogas itself can also be used for boiler heating or other purposes, has just reclaimed a large amount of energy thus;
C, medium back flow to the low-temperature flue gas interchanger 4 that will pass through heat exchange at last heat once more.So just make medium obtain recycle, reduced the waste of medium.
In order to guarantee that anaerobic pond 22 is in the homothermic state, 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 makes low temperature flue interchanger 4 be communicated with thermal source surge tank 16 on being arranged on transport pipe 11, and with interchanger 23 disconnections; 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 through the safe evacuated tube 19 of thermal source surge tank 16 with the form of steam; Realized that total system do not have the operation of pressing, safety, reliable; When anaerobic pond 22 temperature were lower than set(ting)value, conversion import reversing valve group made low temperature flue interchanger 4 and thermal source surge tank 16 break off, and is communicated with interchanger 23, anaerobic pond 22 beginning 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 makes low temperature flue interchanger 4 and thermal source surge tank 16, interchanger 23 break off, 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 thermal source to be provided for interchanger 23, thus heating anaerobic pond 22.
Above-mentioned 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 receives the control of central controller 20, in anaerobic pond 22, TP is set.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 TP transmits; Compare for 55 ℃ according to standard temperature, and detect the running status of low temperature flue interchanger 4, thereby control according to two kinds of above-mentioned situation; 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 under the situation of stopping, and central controller 20 can start anaerobic pond 22 limit cold operations.Behind this mode of employing controlled temperature, the temperature of anaerobic pond 22 is in temperature constant state, owing to make anerobes be in active state for a long time, has increased the efficient of high-temperature anaerobic fermentation, has improved sewage and useless poor processing efficiency, has improved the output efficiency of biogas.
Claims (10)
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 interchanger (23), the transport pipe (11) on the anaerobic pond (22) and be arranged on the heat exchange circulation motor (8) on the transport pipe (11); Said low temperature flue interchanger (4) is provided with high-temperature tail gas input aperture, high temperature heat source output interface (5) and medium inlet (13), and said transport pipe (11) is communicated with the import of said high temperature heat source output interface (5) and said interchanger (23).
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 medium inlet (13) on the said low temperature flue interchanger (4) and the said interchanger (23) is interconnected.
3. according to claim 1 or claim 2 boiler exhaust gas is supplied with the device that anaerobic pond produces biogas as thermal source; It is characterized in that: also comprise thermal source surge tank (16); Said thermal source surge tank (16) is provided with and stores import and store outlet; Be respectively arranged with inlet ductwork (15) and export pipeline in said storage import and the said storage outlet; Said inlet ductwork (15) and export pipeline are connected with said transport pipe (11) respectively; The flow direction with transport pipe (11) medium is reference; Said export pipeline and inlet ductwork (15) separately with the link position of said transport pipe (11) respectively before and afterwards at said heat exchange circulation motor (8), said transport pipe (11) is provided with outlet reversing valve group with the place of connection of said export pipeline, said transport pipe (11) is provided with import reversing valve group with the place of connection of said inlet ductwork (15).
4. boiler exhaust gas as claimed in claim 3 is supplied with the device that anaerobic pond produces biogas as thermal source; It is characterized in that: also comprise central controller (20) and TP; Said outlet reversing valve group and said import reversing valve group are by said central controller (20) control, and said TP is arranged in the anaerobic pond (22) and with said central controller (20) and is electrically connected.
5. boiler exhaust gas as claimed in claim 3 is supplied with the device that anaerobic pond produces biogas as thermal source; It is characterized in that: said 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 said transfer line and at said inlet ductwork (15) high temperature heat source input control valve (10) afterwards that said outlet reversing valve group comprises the thermal source output valve (7) that is arranged on the export pipeline and is positioned on the said transfer line and the output of the high temperature heat source before said export pipeline valve (6).
6. boiler exhaust gas as claimed in claim 3 is supplied with the device that anaerobic pond produces biogas as thermal source; It is characterized in that: the top of said thermal source surge tank (16) also is provided with safe evacuated tube (19), also is provided with system's blowdown valve (12) on the said transport pipe (11).
7. boiler exhaust gas as claimed in claim 3 is supplied with the device that anaerobic pond produces biogas as thermal source; It is characterized in that: also comprise thermal source reserve tank high temperature heat source deposit pipeline (17), said heat exchanger exit (21) is communicated with said thermal source surge tank (16) through said thermal source reserve tank high temperature heat source deposit pipeline (17).
8. 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) through 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 anerobes of sewage and waste dregs liquid in the anaerobic pond (22);
C, medium back flow to the low-temperature flue gas interchanger (4) that will pass through heat exchange at last heat once more.
9. boiler exhaust gas as claimed in claim 8 is supplied with the method that anaerobic pond produces biogas as thermal source, and it is characterized in that: in the B step, 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; Make low temperature flue interchanger (4) be communicated with thermal source surge tank (16) on being arranged on transport pipe (11); And break off with interchanger (23), thereby make the medium after the heating flow into deposit in the thermal source surge tank (16), stopped heating anaerobic pond (22); When anaerobic pond (22) when temperature is lower than set(ting)value, conversion import reversing valve group makes low temperature flue interchanger (4) and thermal source surge tank (16) break off, and is communicated with interchanger (23) that 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 makes low temperature flue interchanger (4) and thermal source surge tank (16), interchanger (23) break off, thermal source surge tank (16) with detest interchanger (23) and be communicated with; Utilizing the medium of deposit in the thermal source surge tank (16) is that interchanger (23) provides thermal source, thus heating anaerobic pond (22).
10. boiler exhaust gas as claimed in claim 9 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105645694A (en) * | 2016-03-22 | 2016-06-08 | 中冶南方工程技术有限公司 | On-site treatment system of community organic wastes and method thereof |
| CN107619310A (en) * | 2017-09-08 | 2018-01-23 | 国电龙源电力技术工程有限责任公司 | The system and method that Coastal Power Station warm water discharge recycles |
| 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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