CN102910730A - Thermophilic anaerobic digestion biological reaction system - Google Patents
Thermophilic anaerobic digestion biological reaction system Download PDFInfo
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- CN102910730A CN102910730A CN2012103722299A CN201210372229A CN102910730A CN 102910730 A CN102910730 A CN 102910730A CN 2012103722299 A CN2012103722299 A CN 2012103722299A CN 201210372229 A CN201210372229 A CN 201210372229A CN 102910730 A CN102910730 A CN 102910730A
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses a thermophilic anaerobic digestion biological reaction system, comprising a thermophilic anaerobic digestion biological reactor, a high-efficiency heat energy recovering device and a heating device, wherein the reactor is used for degrading sewage at high-temperature environment so as to generate biogas and biogas slurry, and is provided with a biogas outlet, a biogas slurry outlet and a raw liquid inlet; the high-efficiency heat energy recovering device is used for enabling the biogas slurry and the sewage to exchange heat, so as to heat the sewage; and the sewage is heated by the heating device through biogas. The sewage is firstly heated by the heat exchanging of the sewage and the biogas slurry generated by the reactor and then is heated by burning of the biogas generated by the reactor, the temperature of the sewage meets the high-temperature reaction demand without additionally consuming external heat to heat the sewage, and the reactor can run continuously.
Description
Technical field
The present invention relates to a kind of thermophilic digestion bio-reaction system.
Background technology
The thermophilic digestion bio-reactor is that organic loading is the highest in the sewage degraded, and hydraulic detention time is the shortest, and floor space is minimum, a kind of anaerobic digestion reaction vessel of the amount of disposing of sewage maximum.
Although the thermophilic digestion bio-reactor has many merits like this, owing to need to add the temperature that energy consumption promotes treatment sewage, therefore high cost only can be used in the sewage water temp in 53 degree or above occasions, can't use in general occasion.
The thermophilic digestion bio-reactor must be kept temperature of reaction between 53 degree-55 degree, just can make digestive efficiency the highest.Keep high temperature like this and need to replenish high energy consumption.Such as to be with spout the sewage of 5 degree by thermophilic digestion bioreactor for treatment (degraded), then need to improve sewage temperature about 50 and spend.Make as can be known sewage lifting 50 degree institute current consumption per ton be about 55KWh according to calculating, to calculate 38.5 yuan by 0.7 yuan of every KWh electricity, add the heat exchange loss then sewage per ton heat up required energy consumption more than 40 yuan.So high processing cost has limited the use of thermophilic digestion bio-reactor in general sewage degraded, and such as the pig farm, the occasions such as industrial normal temperature sewage, sanitary sewage disposal are so that these occasions can only be used the Normal Temperature Anaerobic Digestion reactor.The organic loading of Normal Temperature Anaerobic Digestion reactor only has thermophilic digestion bio-reactor 1/10th, and hydraulic detention time is more than ten to 20 times of thermophilic digestion bio-reactor.This just needs larger volume so that build the normal-temperature reaction device than thermophilic digestion bio-reactor, thereby takies more land area and fabrication cost.With regard to fabrication cost, general normal-temperature reaction device is 20 times of thermophilic digestion bio-reactor, and floor space is 60 times.A difficult problem that is difficult to the most to solve be the normal-temperature reaction device must keep sewage temperature be higher than 15 the degree more than.If be lower than 15 degree, then anerobe is in dormant state, anaerobic digestion quits work and the normal-temperature reaction device was lost efficacy, sewage can not get effectively degraded and causes environmental pollution, although so the normal-temperature reaction device generally uses in China, only limit to temperature and when 15 degree are above, bring into play certain effectiveness, and in 4-6 below 15 degree month, work hardly, cause great harm to environment, the area that especially makes a clear distinction between the four seasons.
In sum, the thermophilic digestion bio-reactor only has and solves it and add a difficult problem of replenishing energy consumption, or it is added power consumption limitations within the limit of the biogas of himself output, and actual social and economic significance is just arranged.
Summary of the invention
The invention provides a kind of thermophilic digestion bio-reaction system, it has overcome the existing deficiency of thermophilic digestion bio-reaction system in the background technology.
The technical scheme that adopts that the present invention solves its technical problem is:
A kind of thermophilic digestion bio-reaction system comprises:
The reactor of thermophilic digestion biology is used at the hot environment degradation of sewage producing biogas and natural pond liquid, and establishes a methane outlet, natural pond liquid outlet and a stoste import;
High efficiency heat recovery device comprises a plurality of heat exchange units and a heat-insulation unit, and this heat-insulation unit connects a plurality of heat exchange units so that a plurality of heat exchange unit separates and independent insulation; This heat exchange unit is established exhaust fluid runner and heating fluid runner, establish the first communication channel and the second communication channel between every adjacent two heat exchange units, this first communication channel is communicated with the exhaust fluid runner of adjacent two heat exchange units, this second communication channel is communicated with the heating fluid runner of adjacent two heat exchange units, should a plurality of heat exchange unit series connection connecting, make those exhaust fluid runners and the first communication channel form natural pond liquid passage, make those heating fluid runners and the second communication channel form the stoste passage; This natural pond liquid passage one termination natural pond liquid outlet, this stoste passage one termination source of sewage, the natural pond liquid of this exhaust fluid runner and the sewage of heating fluid runner carry out heat exchange, with heating sewage; And
Heating unit comprises biogas burner and heating tube, and this heating tube connects the stoste passage the other end and stoste import, and this biogas burner connects methane outlet, to heat the sewage in the heating tube by biogas.
Among one preferred embodiment: this reactor comprises a housing unit and a suspended biological filter material layer, has reaction chamber in this housing unit, this methane outlet is located at the housing unit top, this natural pond liquid outlet is located at housing unit top, this stoste import is located at housing unit bottom, and this suspended biological filter material layer is located at the reaction chamber middle part and between stoste import and the outlet of natural pond liquid.
Among one preferred embodiment: this housing unit comprises a matrix, this matrix outsourcing insulating shell, this matrix inwall lining preservative coat.
Among one preferred embodiment: this reactor also comprises a biological filter membranous layer and a solid-liquid-gas three-phase separator; This biological filter rete is between suspended biological filter material layer and the outlet of natural pond liquid, and this natural pond liquid outlet is located between biological filter rete and the liquid level; This solid-liquid-gas three-phase separator comprises a centrum shell, and this cone shell top runs through and the periphery of through part extends upward to pipeline, this pipeline to lower and on pass the biological filter rete and the top is not less than liquid level.
Among one preferred embodiment: it is protruding that this housing unit inwall is established ring, and this ring is protruding between centrum shell and suspended biological filter material layer.
Among one preferred embodiment: this reactor also comprises a fluidisation cycling mechanism, it comprises a circulating line and is connected the recycle pump that connects circulating line, the logical reaction chamber of this circulating line one termination be positioned at position on the suspended biological filter material layer, the other end is connected the position under the suspended biological filter material layer of being positioned at of reaction chamber.
Among one preferred embodiment: this reactor also comprises a homogenizing plate, and this homogenizing plate is located at the reaction chamber bottom of housing unit and is higher than the stoste import, and this homogenizing plate offers a plurality of evenly spaced through holes.
Among one preferred embodiment: establish a plurality of cavitys in this heat-insulation unit, this heat exchange unit is located in the cavity, and the part that is positioned between every adjacent two cavitys of this heat-insulation unit is established this first communication channel and the second communication channel.
Among one preferred embodiment: this heat exchange unit comprises a housing; This heat-insulation unit comprises external thermal insulation and the thermal insulation layer of being separated by; The housing of these a plurality of heat exchange units up and down or with horizontal, this external thermal insulation is wrapped in the housing periphery arranged together of these a plurality of heat exchange units, and this thermal insulation layer of being separated by is located between adjacent two housings.
The technical program is compared with background technology, and it has following advantage:
1, the natural pond liquid and the sewage that generate by reactor first carry out heat exchange heating sewage, the biogas combustion heating sewage that generates by reactor again, make the temperature of sewage satisfy the pyroreaction requirement, need not to consume in addition external energy heating sewage, make the continued running of reactor energy; A plurality of heat exchange units separate and independent insulation, by a plurality of heat exchange units realize step by step independently, the heat exchange of thermal insulation, natural pond liquid in the reduction heat exchange unit and the temperature head between sewage, to improve energy recovery efficient, and make the sewage Heating temperature high, realize the optimum efficiency of energy-saving and emission-reduction;
2, this heat exchange unit comprises a housing; This heat-insulation unit comprises external thermal insulation and the thermal insulation layer of being separated by; The housing of these a plurality of heat exchange units up and down or with horizontal, this external thermal insulation is wrapped in the housing periphery arranged together of these a plurality of heat exchange units, and this thermal insulation layer of being separated by is located between adjacent two housings, and it is little to take up room.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 has illustrated the synoptic diagram of the system of a preferred embodiment.
Fig. 2 has illustrated the schematic diagram of the high efficiency heat recovery device of a preferred embodiment.
Fig. 3 has illustrated the structural representation of the high efficiency heat recovery device of a preferred embodiment.
Fig. 4 has illustrated the structural representation of the high efficiency heat recovery device of another preferred embodiment.
Fig. 5 has illustrated the structural representation of the heat exchange unit of another preferred embodiment.
Embodiment
Please refer to Fig. 1, a kind of thermophilic digestion bio-reaction system comprises reactor 100, high efficiency heat recovery device 200 and the heating unit 300 of thermophilic digestion biology.
This reactor 100 is used at the hot environment degradation of sewage producing biogas and natural pond liquid, and establishes a methane outlet 101, natural pond liquid outlet 102 and one a stoste import 103.Among the present embodiment, this reactor 100 comprises a housing unit, a suspended biological filter material layer 104, a biological filter membranous layer 105, a solid-liquid-gas three-phase separator 106, a fluidisation cycling mechanism and a homogenizing plate 107.
This housing unit comprises a matrix 108, these matrix 108 outsourcing insulating shells 109, these matrix 108 inwall lining preservative coats.Have reaction chamber in this housing unit, this methane outlet 101 is located at the housing unit top, and this natural pond liquid outlet 102 is located at housing unit top, and this stoste import 103 is located at the housing unit bottom.Among the present embodiment, this matrix 108 can be rolled by steel plate and be welded (also available steel reinforced concrete glass reinforced plastic etc. is made, and material is not limit); The preservative coat of this liner can adopt glass reinforced plastic; The optional foamex of the material of this insulating shell, heat preservation rock, aluminium silicate wool etc.Best, insulating shell uses color steel as shell outward again.
This suspended biological filter material layer 104, biological filter rete 105 and homogenizing plate 107 are between the upper and lower every setting.
This suspended biological filter material layer 104 is located at the reaction chamber middle part; Among the present embodiment, this suspended biological filter material layer 104 comprises plastics filter bulb and upper and lower corrosion-resistant separation net, this upper and lower corrosion-resistant separation net periphery is connected to the reaction chamber inwall, this plastics filter bulb is filled between upper and lower corrosion-resistant separation net, and, this filter material layer thickness is between 500mm-2000mm, and plastics filter bulb particle diameter is between 50-100mm, and the separation net mesh is less than plastics filter bulb particle diameter.
This biological filter rete 105 is between suspended biological filter material layer 104 and natural pond liquid outlet 102, and suspended biological filter material layer 104 is a little less than liquid level, and this natural pond liquid outlet 102 is located between biological filter rete 104 and the liquid level; Among the present embodiment, this biological filter rete 105 comprises plastics filter bulb and upper and lower corrosion-resistant separation net, this upper and lower corrosion-resistant separation net periphery is connected to the reaction chamber inwall, this plastics filter bulb is filled between upper and lower corrosion-resistant separation net, and, this filter material layer thickness is between 100mm-1000mm, and plastics filter bulb particle diameter is between 15-50mm, and the separation net mesh is less than plastics filter bulb particle diameter.
This homogenizing plate 107 is located at the reaction chamber bottom of housing unit and is higher than stoste import 103, the area of plane of this homogenizing plate 107 and the section area of reaction chamber are suitable, this homogenizing plate 107 offers a plurality of evenly spaced through holes, evenly enters the effect of reaction chamber from bottom to top to play sewage.Among the present embodiment, these homogenizing plate 107 materials such as plastics, glass reinforced plastic or titanium material are made.
This solid-liquid-gas three-phase separator 106 comprises a centrum shell, and this cone shell top is run through and the periphery of through part extends upward to pipeline 110, this pipeline 110 to lower and on pass biological filter rete 105 and the top exceeds liquid level.Best, it is protruding 111 that this housing unit inwall is established ring, and this encircles protruding 111 between centrum shell and suspended biological filter material layer 105.Biogas natural pond liquid upwards floats from the reaction chamber bottom through reaction, biogas is encircled in the protruding 111 restriction introducing cone shells and from pipeline discharges natural pond liquid liquid level, the small sewage particulate that thereupon takes up enters behind the filtrate more further bio-digestion, and flows out after filtering natural pond liquid outlet.Among the present embodiment, in downward projection, this centrum shell and ring convex portion are overlapping, to guarantee collecting effect.
This fluidized circulation mechanism, it comprises a circulating line 112 and is connected the recycle pump 113 that connects circulating line, the logical reaction chamber of these circulating line 112 1 terminations at suspended biological filter material layer 104 and encircle position between protruding 111, the other end is connected the position under the suspended biological filter material layer 104 of being positioned at of reaction chamber, from reactor top liquid-absorbing through be pumped into the bottom, make the balanced digestion of liquid in the reactor, namely play the fluidized-bed effect, play again stirring action.Best, in reaction chamber, establish the splitter 114 of a communication loop pipeline 112 lower port, so that the circulating liquid shunting is even.
As required, also can at housing unit peripheral hardware reactor servicing platform, establish bottom slag removing hole etc. in the housing unit bottom.
Please refer to Fig. 2, Fig. 3, high efficiency heat recovery device 200 comprises a plurality of heat exchange units 10 and a heat-insulation unit 20, and the structure of these a plurality of heat exchange units 10 is identical, can use existing heat exchanger.Among the present embodiment, take three heating units as example, but not as limit, as required, can select 5,50 etc. among the figure.This heat-insulation unit 20 connects a plurality of heat exchange units 10 so that a plurality of heat exchange unit 10 separates and independent insulation; This heat exchange unit 10 is established exhaust fluid runner 11 and heating fluid runner 12, every 10 of adjacent two heat exchange units are established the first communication channel 31 and the second communication channel 32, this the first communication channel 31 is communicated with the exhaust fluid runner 11 of adjacent two heat exchange units 10, this the second communication channel 32 is communicated with the heating fluid runner 12 of adjacent two heat exchange units 10, should a plurality of heat exchange unit series connection connecting, make those exhaust fluid runners 11 and the first communication channel 31 form natural pond liquid passage, make those heating fluid runners 12 and the second communication channel 32 form the stoste passage; This natural pond liquid passage one termination natural pond liquid outlet 102, this stoste passage one termination source of sewage, the natural pond liquid of this exhaust fluid runner 11 and the sewage of heating fluid runner 12 carry out heat exchange, with heating sewage.
Among the present embodiment, natural pond liquid outlet 102 and the source of sewage of this device ligation device, these a plurality of heat exchange units 10 are connected between natural pond liquid outlet 102 and source of sewage and by the head and the tail mode and are connected in series, the temperature of each heat exchange unit 10 that this head and the tail mode is connected reduces gradually, for example they can be divided into high-temperature zone, inferior high-temperature zone, middle warm area, inferior cold zone, cold zone etc.Wherein: 1, be positioned at the most the first heat exchange unit 10, the natural pond liquid outlet 102 of the entrance of exhaust fluid runner 11 (natural pond liquid passage one end) ligation device, this moment, the temperature of natural pond liquid was initial temperature, the outlet of heating fluid runner 12 (the stoste passage the other end) is sewage discharge place, and this moment, the temperature of sewage was ultimate temperature; Be positioned at the heat exchange unit 10 of tail position, the outlet of exhaust fluid runner 11 (the natural pond liquid passage the other end) is natural pond liquid discharge place, this moment, the temperature of natural pond liquid was ultimate temperature, and the entrance of heating fluid runner 12 (stoste passage one end) connects source of sewage, and this moment, the temperature of sewage was initial temperature.
Among the present embodiment: this heat exchange unit 10 comprises a housing 13; The housing 13 of these a plurality of heat exchange units 10 is arranged above and below together, and being arranged as up and down example, but not as limit, also optional usefulness is horizontal as required in this example, or, the arrangement that is arranged above and below He horizontally combines.Among the present embodiment, those housings 13 are put up and down a general frame structure, but not as limit, as required, also can select the split skeleton construction, and certain Split type structure that adopts can add the heat energy loss that large pipeline connects, and reduces organic efficiency.This heat-insulation unit 20 comprises external thermal insulation 21 and the thermal insulation layer 22 of being separated by; This external thermal insulation 21 is wrapped in the periphery of the housing 13 of these a plurality of heat exchange units 10 framework arranged together, this thermal insulation layer 22 of being separated by is located at 13 of neighbouring two housings, to separate each heat exchange unit heat exchange unit independently is incubated, make and only depend on communication channel to communicate between heat exchange unit, to prevent temperature difference interference, affect organic efficiency.
This heat-insulation unit 20 can be the first communication channel 31 and 32 insulations of the second communication channel.Among the present embodiment, this first communication channel 31 be connected communication channel 32 and connect housings and be positioned at external thermal insulation 32, by external thermal insulation 32 insulations, but not as limit, as required, insulation construction insulation communication channel 31,32 can be set separately also.
Among the present embodiment, in every two adjacent heat exchange units 10: these the second communication channel 32 upper ends are connected to the top of the heating fluid passage 12 of a heat exchange unit 10, and the lower end is connected to the bottom of the heating fluid passage 12 of next heat exchange unit 10; These the first communication channel 31 upper ends are connected to the bottom of the discharge flow channel 11 of a heat exchange unit 10, the lower end is connected to the top of the discharge flow channel 12 of next heat exchange unit 10, so that: in each heat exchange unit 10, the natural pond liquid of discharge flow channel 11 flow to and the effluent stream of heating fluid passage 12 in the same way.Among the present embodiment, this looks like up and down and can refer to: by a plurality of heat exchange unit head and the tail series sequences.
Has cavity in this housing 13, this cavity is established a plurality of spaced tubules, those tubule endoporus form exhaust fluid runner 11, part between those tubule outer walls and cavity inner wall forms heating fluid runner 12, also be, adopt tubule that natural pond liquid and sewage are separated, so that they do not leak through with each other and circulate.The structure of this tubule can strengthen heat exchange area, and the material of this tubule and the material of housing can use acid and alkali-resistance, corrosion-resistant and material that thermal conduction is good (as, silica glass, titanium material, do corrosion-resistant stainless steel etc.).
As required, the structure of this device can be the rectangle three-dimensional arrangement, and cylindrical solid structure etc. are not limit profile and size, decide according to the heat energy of required recovery.Among the present embodiment, the material of this housing is selected according to ambient conditions, such as concrete, steel, stainless steel, titanium material, glass reinforced plastic, charcoal fiber and other material.This lagging material can be selected the materials such as foamex, insulation charcoal cotton, pure aluminium silicate insulating cotton.
Among the present embodiment, the natural pond flow quantity in this exhaust fluid runner 11 and the discharge of sewage in the heating fluid runner 12 equate, make the ultimate temperature of sewage near the initial temperature of natural pond liquid, and heat exchanger effectiveness is high.Among the present embodiment, the ultimate temperature that the initial temperature of this heated fluid source is discharged from a heat exchange unit of afterbody less than natural pond liquid should be 0.5 ℃-10 ℃ less than value, best optional 2-5 degree.
For further specifying the present invention, the below specifies application principle of the present invention: establish n heat exchange unit (n heat exchange steps or n stage heat exchange) according to the degree that temperature reclaims, n=(a-d)/(a-b) (round numerical value), wherein: the initial temperature of a exhaust fluid (natural pond liquid), the initial temperature of d heating fluid (sewage), the ultimate temperature of b heating fluid.Take Fig. 1 as example, n=(60-4)/(60-59) be n=56,56 heat exchange units are established in expression, each unit reclaims 1 ℃, 60 ℃ of the initial temperatures of exhaust fluid then, the ultimate temperature of exhaust fluid is 5 ℃ after exchange, and 55 ℃ of energy recovery, the rate of recovery reach (c-d)/(a-d) * 100%=98.214%.
This heating unit 300 comprises biogas burner and heating tube, and this heating tube connects the stoste passage the other end and stoste import, and this biogas burner connects methane outlet, to heat the sewage in the heating tube by biogas.Among the present embodiment, a, this heating tube are the coiled spiral pipe, and material should meet corrosion-resistant, high heat conduction, robust requirement; B, this biogas burner shell peripheral hardware insulating shell make it form heat-insulated cavity, and this biogas burner shell consists of skin by steel or steel reinforced concrete; C, this biogas burner are by market purchasing; D, this heating unit should be provided with air inlet (biogas, air) and smoke outlet.
This institute of system treatment sewage is introduced high efficiency heat recovery device 200 when high efficiency heat recovery device lifting sewage temperature to 49 is spent the left and right sides via pipeline, promote temperature to 53-55 degree through biogas combustion heating unit 300 again and enter thermophilic digestion bio-reactor 100, sewage is through high-temperature reactor 100 degradeds and produce simultaneously natural pond liquid and biogas, and sewage per ton approximately produces 3 cubic metres of biogas.To keep again the natural pond liquid introducing high efficiency heat recovery device 200 of 53-55 degree to make its heat energy fully discharge and be absorbed by the sewage of temperature to be hoisted.Natural pond liquid temp after the release only ratio sewage enters the high 2-5 degree of temperature (or according to practical situation designs in 10 degree) of high efficiency heat recovery device 200, and natural pond liquid flows out and enters lower road treatment process.High-temperature reactor 100 biogas that produces causes the sewage of biogas combustion heating unit 300 intensifications through having absorbed natural pond liquid heat energy and enters high-temperature reactor 100 to the 53-55 degree, this moment institute consumes biogas and is about the 1-1.5 cubic meter, remain 2-1.5 cubic meter biogas be used as in addition he (generate electricity or draw and be used as other fuel)
This intrasystem thermophilic digestion bio-reactor, high efficiency heat recovery device, biogas combustion heating unit are connected by sewer line, biogas slurry pipeline, biogas pipeline, and fluid pipeline should notice that insulation prevents heat energy loss.
Another preferred embodiment, it and a upper preferred embodiment difference are: please refer to Fig. 4 and Fig. 5, establish a plurality of cavitys in this heat-insulation unit 20, this heat exchange unit 10 is located in the cavity, and the part that is positioned between every adjacent two cavitys of this heat-insulation unit 20 is established this first communication channel 31 and the second communication channel 31.
The serpentine configuration that the exhaust fluid runner 11 of this heat exchange unit 10 and heating fluid runner 12 are arranged to be separated by, and, in the cavity and runner 11, the 12 outer heat exchange mediums that are filled with, make exhaust fluid in the exhaust fluid runner 11 and the heating fluid heat exchange in the heating fluid runner 12 by heat exchange medium.
Among the present embodiment, in this heat exchange unit 10, the exhaust fluid flow direction in the exhaust fluid runner 11 and the heating fluid in the heating fluid runner 12 flow to opposite.
The above, only for preferred embodiment of the present invention, so can not limit according to this scope of the invention process, the equivalence of namely doing according to claim of the present invention and description changes and modifies, and all should still belong in the scope that the present invention contains.
Claims (9)
1. thermophilic digestion bio-reaction system is characterized in that: comprising:
The reactor of thermophilic digestion biology is used at the hot environment degradation of sewage producing biogas and natural pond liquid, and establishes a methane outlet, natural pond liquid outlet and a stoste import;
High efficiency heat recovery device comprises a plurality of heat exchange units and a heat-insulation unit, and this heat-insulation unit connects a plurality of heat exchange units so that a plurality of heat exchange unit separates and independent insulation; This heat exchange unit is established exhaust fluid runner and heating fluid runner, establish the first communication channel and the second communication channel between every adjacent two heat exchange units, this first communication channel is communicated with the exhaust fluid runner of adjacent two heat exchange units, this second communication channel is communicated with the heating fluid runner of adjacent two heat exchange units, should a plurality of heat exchange unit series connection connecting, make those exhaust fluid runners and the first communication channel form natural pond liquid passage, make those heating fluid runners and the second communication channel form the stoste passage; This natural pond liquid passage one termination natural pond liquid outlet, this stoste passage one termination source of sewage, the natural pond liquid of this exhaust fluid runner and the sewage of heating fluid runner carry out heat exchange, with heating sewage; And
Heating unit comprises biogas burner and heating tube, and this heating tube connects the stoste passage the other end and stoste import, and this biogas burner connects methane outlet, to heat the sewage in the heating tube by biogas.
2. a kind of thermophilic digestion bio-reaction system according to claim 1, it is characterized in that: this reactor comprises a housing unit and a suspended biological filter material layer, has reaction chamber in this housing unit, this methane outlet is located at the housing unit top, this natural pond liquid outlet is located at housing unit top, this stoste import is located at housing unit bottom, and this suspended biological filter material layer is located at the reaction chamber middle part and between stoste import and the outlet of natural pond liquid.
3. a kind of thermophilic digestion bio-reaction system according to claim 2, it is characterized in that: this housing unit comprises a matrix, this matrix outsourcing insulating shell, this matrix inwall lining preservative coat.
4. a kind of thermophilic digestion bio-reaction system according to claim 2, it is characterized in that: this reactor also comprises a biological filter membranous layer and a solid-liquid-gas three-phase separator; This biological filter rete is between suspended biological filter material layer and the outlet of natural pond liquid, and this natural pond liquid outlet is located between biological filter rete and the liquid level; This solid-liquid-gas three-phase separator comprises a centrum shell, and this cone shell top runs through and the periphery of through part extends upward to pipeline, this pipeline to lower and on pass the biological filter rete and the top is not less than liquid level.
5. a kind of thermophilic digestion bio-reaction system according to claim 4 is characterized in that: it is protruding that this housing unit inwall is established ring, and this ring is protruding between centrum shell and suspended biological filter material layer.
6. a kind of thermophilic digestion bio-reaction system according to claim 2, it is characterized in that: this reactor also comprises a fluidisation cycling mechanism, it comprises a circulating line and is connected the recycle pump that connects circulating line, the logical reaction chamber of this circulating line one termination be positioned at position on the suspended biological filter material layer, the other end is connected the position under the suspended biological filter material layer of being positioned at of reaction chamber.
7. a kind of thermophilic digestion bio-reaction system according to claim 2, it is characterized in that: this reactor also comprises a homogenizing plate, this homogenizing plate is located at the reaction chamber bottom of housing unit and is higher than the stoste import, and this homogenizing plate offers a plurality of evenly spaced through holes.
8. each described a kind of thermophilic digestion bio-reaction system in 7 according to claim 1, it is characterized in that: establish a plurality of cavitys in this heat-insulation unit, this heat exchange unit is located in the cavity, and the part that is positioned between every adjacent two cavitys of this heat-insulation unit is established this first communication channel and the second communication channel.
9. each described a kind of thermophilic digestion bio-reaction system in 7 according to claim 1, it is characterized in that: this heat exchange unit comprises a housing; This heat-insulation unit comprises external thermal insulation and the thermal insulation layer of being separated by; The housing of these a plurality of heat exchange units up and down or with horizontal, this external thermal insulation is wrapped in the housing periphery arranged together of these a plurality of heat exchange units, and this thermal insulation layer of being separated by is located between adjacent two housings.
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| CN104357321A (en) * | 2014-11-11 | 2015-02-18 | 黑龙江省科学院科技孵化中心 | Fermentation method implemented by virtue of high-temperature anaerobic fermentation device |
| CN104556351A (en) * | 2014-12-25 | 2015-04-29 | 东南大学 | Device and method of utilizing high temperature wastewater to warm bioreactor |
| CN106186366A (en) * | 2016-09-05 | 2016-12-07 | 上海勘测设计研究院有限公司 | A kind of water quality biological treatment facility |
| CN107151051A (en) * | 2017-07-06 | 2017-09-12 | 泸州品创科技有限公司 | A kind of efficient aromatic Chinese spirit malting effluent processing anaerobic reaction device |
| CN111484130A (en) * | 2020-04-01 | 2020-08-04 | 冯芳秀 | Livestock-heating type energy-saving constant-temperature anaerobic sewage treatment device |
| CN111533257A (en) * | 2020-04-14 | 2020-08-14 | 浙江海洋大学 | High ammonia nitrogen autotrophic nitrogen removal device |
| CN113998856A (en) * | 2021-11-12 | 2022-02-01 | 国能龙源环保南京有限公司 | Excrement plug-flow anaerobic reaction system |
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| CN104357321A (en) * | 2014-11-11 | 2015-02-18 | 黑龙江省科学院科技孵化中心 | Fermentation method implemented by virtue of high-temperature anaerobic fermentation device |
| CN104556351A (en) * | 2014-12-25 | 2015-04-29 | 东南大学 | Device and method of utilizing high temperature wastewater to warm bioreactor |
| CN106186366A (en) * | 2016-09-05 | 2016-12-07 | 上海勘测设计研究院有限公司 | A kind of water quality biological treatment facility |
| CN107151051A (en) * | 2017-07-06 | 2017-09-12 | 泸州品创科技有限公司 | A kind of efficient aromatic Chinese spirit malting effluent processing anaerobic reaction device |
| CN107151051B (en) * | 2017-07-06 | 2020-09-25 | 泸州品创科技有限公司 | Anaerobic reaction device for treating high-efficiency strong aromatic white spirit brewing wastewater |
| CN111484130A (en) * | 2020-04-01 | 2020-08-04 | 冯芳秀 | Livestock-heating type energy-saving constant-temperature anaerobic sewage treatment device |
| CN111533257A (en) * | 2020-04-14 | 2020-08-14 | 浙江海洋大学 | High ammonia nitrogen autotrophic nitrogen removal device |
| CN111533257B (en) * | 2020-04-14 | 2021-10-26 | 浙江海洋大学 | High ammonia nitrogen autotrophic nitrogen removal device |
| CN113998856A (en) * | 2021-11-12 | 2022-02-01 | 国能龙源环保南京有限公司 | Excrement plug-flow anaerobic reaction system |
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