CN206418106U - Methane power generating system - Google Patents
Methane power generating system Download PDFInfo
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- CN206418106U CN206418106U CN201621457610.5U CN201621457610U CN206418106U CN 206418106 U CN206418106 U CN 206418106U CN 201621457610 U CN201621457610 U CN 201621457610U CN 206418106 U CN206418106 U CN 206418106U
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
A kind of methane power generating system, including the biogas being made up of disintegrating apparatus, homogenization device, hydrolysis device, the first fermentation tank, the second fermentation tank, marsh gas recovery device, equipment for separating liquid from solid prepare purification system, methane fuelled engine, generator and waste-heat recovery device.Disintegrating apparatus is connected with homogenization device, homogenization device is connected with hydrolysis device, hydrolysis device is connected with the first fermentation tank, first fermentation tank is also connected with the second fermentation tank, marsh gas recovery device is connected with the first fermentation tank, the second fermentation tank and methane fuelled engine, methane fuelled engine is connected with generator and waste-heat recovery device, and equipment for separating liquid from solid is connected with the first fermentation tank, the second fermentation tank and hydrolysis device.Biogas in above-mentioned methane power generating system, which prepares purification system and exported, stable eliminates the biogas of hydrogen sulfide, carbon dioxide and water to methane fuelled engine, ensure the stable acting of biogas that methane fuelled engine is provided using marsh gas recovery device, to drive generator stable work generating.
Description
Technical field
The utility model is related to biomass fuel technical field of power generation, and in particular to a kind of methane power generating system.
Background technology
Energy crisis and ecocrisis are the huge problems that current mankind society faces, and profit is occurred in that to solve the above problems
With the technology of generating electricity by natural energy：For example solar power generation, wind-driven generator, biomass natural pond generate electricity.
Wherein, it is to administer organic waste pollution and the exploitation highly effective skill of regenerative resource that biomass natural pond, which generates electricity,
Art.Biogas is to use the various organic substances such as human and animal excreta, stalk, sewage under anaerobic, by the fermentation of microorganism, is divided
Solution, transformation and a kind of mixed gas generated.Fermentation is complicated biochemical change, has many microorganisms to participate in.Instead
Should substantially in two stages：（1）Microorganism is the carbohydrate in complicated organic substance, fat, protein degradation into simple thing
Matter, such as lower fatty acid, alcohol, aldehyde, carbon dioxide, ammonia, hydrogen and hydrogen sulfide.（2）By the effect of methane strain, make some letters
Single material becomes methane.Because this gas is swampy, so referred to as biogas at first.In biogas it is main into
It is methane and carbon dioxide to divide, and wherein methane accounts for 60%-70%, and carbon dioxide accounts for 30%-40%, also a small amount of hydrogen, an oxidation
The gases such as carbon, hydrogen sulfide, oxygen and nitrogen, the utilization of current biogas is primarily used to combustion power generation.
Traditional biogas fermentation device generally comprises hydraulic type biomass pool, float cover type biogas generating pit etc., and fermentation raw material, which enters, to be detested
Aerobe fermentation aerogenesis room is at the dynamic vibration of static state or part, there is the technical problem that aerogenesis is unstable, efficiency is low, and
The generated energy for ultimately resulting in biogas generator is unstable.
The content of the invention
In view of this, it is necessary to provide a kind of generated energy stable methane power generating system.
A kind of methane power generating system, including disintegrating apparatus, homogenization device, hydrolysis device, the first fermentation tank, the second fermentation
Tank, marsh gas recovery device, equipment for separating liquid from solid, methane fuelled engine, generator and waste-heat recovery device.Disintegrating apparatus is with homogenizing
Equipment is connected, and homogenization device is connected with hydrolysis device, and hydrolysis device is connected with the first fermentation tank, and the first fermentation tank is also with second
Fermentation tank is connected, and marsh gas recovery device is connected with the first fermentation tank, the second fermentation tank and methane fuelled engine, methane fuelled engine and hair
Motor and waste-heat recovery device connection, equipment for separating liquid from solid are connected with the first fermentation tank, the second fermentation tank and hydrolysis device；It is broken
Equipment crushes lignocellulose raw material to obtain the first fermentation raw material；Homogenization device is by the first fermentation raw material and animal wastes
Second fermentation raw material is delivered to hydrolysis device by material mixing homogeneous to obtain the second fermentation raw material；Hydrolysis device ferments second
Decomposed after raw material and zymogenic bacteria mixing to obtain hydrolysis compound, and hydrolysis compound is conveyed to the first fermentation
Tank；Hydrogen-producing acetogens are mixed and further decomposed to obtain containing formic acid, acetic acid and first by the first fermentation tank with hydrolysis compound
The fermentation compound of alcohol and the material containing hydrogen and carbon dioxide gaseous state, and the fermentation containing formic acid, acetic acid and methanol is mixed
Material is delivered to the second fermentation tank, and gaseous material is conveyed into marsh gas recovery device；Second fermentation tank is to containing formic acid, acetic acid
Methane bacteria culture fluid is added with the fermentation compound of methanol, and is transported to marsh gas recovery device containing hydrogen and carbon dioxide gaseous state
Material mixing after continuing fermentation, to produce biogas；What marsh gas recovery device the first fermentation tank of recovery was provided contains hydrogen and dioxy
Change the gaseous material of carbon, and removal of impurities processing is carried out to the material containing hydrogen and carbon dioxide gaseous state, and hydrogen will be contained after deoxidation
The second fermentation tank is conveyed to the material of carbon dioxide gaseous state；Marsh gas recovery device also reclaims the natural pond produced by the second fermentation tank
Gas, and the biogas row produced by entering the second fermentation tank of recovery is purified, and the biogas after purification is conveyed to methane fuelled engine.
Equipment for separating liquid from solid by the first fermentation tank, the second fermentation tank produce slurries carry out lock out operation, with obtain corresponding biogas residue and
Biogas slurry.The biogas that methane fuelled engine is provided using marsh gas recovery device is done work, to drive generator operation to generate electricity.Waste heat is returned
Receiving apparatus reclaims the heat in the cooling water and exhaust of methane fuelled engine, and heat is supplied into hydrolysis device, the first fermentation tank,
So that the temperature in hydrolysis device, the first fermentation tank reaches that hydrolysis and fermentation are required.
It is preferred that, equipment for separating liquid from solid is also connected with homogenization device, and the biogas slurry of acquisition is conveyed to by equipment for separating liquid from solid
Homogenization device, homogenization device is by biogas slurry, the first fermentation raw material, animal wastes material mixing homogeneous to obtain the second proferment
Material.
It is preferred that, marsh gas recovery device includes gas knot screen, Marsh gas purifying device, and gas knot screen, which is obtained, to be contained
The material of hydrogen and carbon dioxide gaseous state, and to being conveyed to the second fermentation after the material progress deoxidation containing hydrogen and carbon dioxide gaseous state
Tank；Marsh gas purifying device obtains the biogas produced by the second fermentation tank, and the biogas obtained carries out alkali lye spraying removing carbon dioxide
And after hydrogen sulfide, then low-temperature water removal is purified.
It is preferred that, the first fermentation tank includes fermentation tank, hydrogenesis and acetogenesis bacteria culture fluid feeding mechanism, the side of fermentation tank
First through hole and charging hole are provided with wall, first through hole passes through close to the bottom of fermentation tank, the first through hole of fermentation tank
Pipeline is connected with the tank body of the second fermentation tank, and charging hole is set close to the top of fermentation tank, charging hole by pipeline with homogenizing
Standby connection；The top of fermentation tank sets the second through hole and third through-hole, and hydrogenesis and acetogenesis bacteria culture fluid feeding mechanism is arranged on
The top of fermentation tank, the woven hose of hydrogenesis and acetogenesis bacteria culture fluid feeding mechanism stretches into fermentation from the second through hole of fermentation tank
In tank body, fluid hole is provided with the tube wall of the woven hose in fermentation tank；Third through-hole passes through pipeline and methane recovery
Device is connected.
It is preferred that, the second fermentation tank includes being provided with the 4th on fermentation tank, methane backeria culture tank, the side wall of fermentation tank
Through hole, relief hole, biogas slurry access aperture, fourth hole, relief hole lead to close to the bottom of fermentation tank, the fourth hole of fermentation tank
Piping is connected with the tank body of the first fermentation tank, and relief hole is connected by pipeline with equipment for separating liquid from solid；Biogas slurry access aperture passes through
Pipeline is connected with methane backeria culture tank, and the biogas slurry in fermentation tank is delivered in methane backeria culture tank；The top of fermentation tank
Portion sets fifth hole and the 6th through hole, and the woven hose of methane backeria culture tank stretches into fermentation tank from the fifth hole of fermentation tank
In, fluid hole is provided with the tube wall of the woven hose in fermentation tank, the 6th through hole passes through pipeline and Marsh gas purifying device
Connection；Biogas slurry inoculation methane backeria in methane backeria culture tank produces methane bacteria culture fluid, and utilizes woven hose by methane backeria culture
Liquid is transported in fermentation tank, so that biogas slurry is fully fermented.
It is preferred that, methane power generating system also includes conveying device, and the delivery end of conveying device sequentially passes through the first fermentation tank
The first through hole of fermentation tank, the fourth hole of the fermentation tank of the second fermentation tank, the delivery end of conveying device passes through spiral
Fermentation compound in the fermentation tank of first fermentation tank is delivered in the second fermentation tank by mode of movement.
It is preferred that, conveying device includes motor, sealed chamber, spiral propeller and sealing gas feeding mechanism；Sealed chamber
It is fixed on the side wall of the first fermentation tank, the fixing end of spiral propeller enters sealed chamber after being passed from the side wall of the first fermentation tank
It is fixedly connected with the output end of motor, spiral propeller sequentially passes through the first through hole of the fermentation tank of the first fermentation tank,
The fourth hole of the fermentation tank of two fermentation tanks；Sealing gas feeding mechanism is connected with sealed chamber, with lasting offer sealing gas
To prevent the fermentation compound in the first fermentation tank from penetrating into sealed chamber.
It is preferred that, Marsh gas purifying device includes sour gas cancellation element, cooling dewatering unit and negative pressure and provides device, acid
Property gas cancellation element is connected with the fermentation tank of the second fermentation tank, and cooling dewatering unit is connected with sour gas cancellation element,
Negative pressure provides device and is connected with cooling dewatering unit, so as to negative pressure is produced in sour gas cancellation element, cooling dewatering unit, acid
Property gas cancellation element include offering gas access holes at the top of tank body, sprayer unit, tank body and through hole, gas access holes
Connected by pipeline with the fermentation tank of the second fermentation tank, the fog-spray nozzle of sprayer unit enters tank body from through hole, with to entering
The biogas of tank body is sprayed, and the alkaline mist sprayed by spraying absorbs to be opened up on the sour gas in biogas, the side wall of tank body
There is gas discharge outlet, the gas entrance of cooling dewatering unit is connected with the gas discharge outlet on the side wall of tank body, cooled dehydrated
Device includes pipeline and the height that is arranged in pipeline gradually incremental cooling fin, and cooling fin offers pod apertures, and the of pipeline
One end is fixedly connected with the side wall of tank body, and the second end of pipeline is higher than the first end of pipeline, cold so when biogas is by pipeline
But piece makes after the vapor cooling liquid in biogas, is flowed back to by the pod apertures of cooling fin in tank body.
In above-mentioned methane power generating system, lignocellulose raw material is crushed using disintegrating apparatus to obtain the first proferment
Material, using homogenization device by the first fermentation raw material with animal wastes material mixing homogeneous to obtain the second fermentation raw material, utilize water
Solution equipment is decomposed after mixing the second fermentation raw material and zymogenic bacteria to obtain hydrolysis compound, and the first fermentation tank will be produced
Hydrogen acetogen is mixed with hydrolysis compound and further decomposed to obtain the fermentation compound containing formic acid, acetic acid and methanol and contain
There is the material of hydrogen and carbon dioxide gaseous state, and the fermentation compound containing formic acid, acetic acid and methanol be delivered to the second fermentation tank,
And gaseous material is conveyed to marsh gas recovery device, the second fermentation tank is to the fermentation compound containing formic acid, acetic acid and methanol
Methane bacteria culture fluid is added, and is transported to after the material mixing containing hydrogen and carbon dioxide gaseous state and persistently sends out with marsh gas recovery device
Ferment, to produce biogas；Marsh gas recovery device reclaims the material containing hydrogen and carbon dioxide gaseous state that the first fermentation tank is provided, and right
Material containing hydrogen and carbon dioxide gaseous state carries out removal of impurities processing, and by the material containing hydrogen and carbon dioxide gaseous state after deoxidation
It is conveyed to the second fermentation tank；Marsh gas recovery device also reclaims the biogas produced by the second fermentation tank, and to entering the second hair of recovery
Biogas row purification produced by fermentation tank, so stable eliminates the biogas of hydrogen sulfide, carbon dioxide and water to biogas to export
Engine, and then ensure the stable acting of biogas that methane fuelled engine is provided using marsh gas recovery device, to drive generator stable
Work generates electricity.
Brief description of the drawings
Fig. 1 is the high-level schematic functional block diagram of the methane power generating system of a better embodiment.
Fig. 2 is the structure connection diagram that biogas in Fig. 1 methane power generating system prepares purification system.
Fig. 3 is the polycrystalline substance schematic diagram of the first fermentation tank.
In figure：Methane power generating system 10, disintegrating apparatus 11, homogenization device 12, hydrolysis device 13, the first fermentation tank 14,
Fermentation tank 140, hydrogenesis and acetogenesis bacteria culture fluid feeding mechanism 141, woven hose 142, the second fermentation tank 15, fermentation tank 150,
Methane backeria culture tank 151, woven hose 152, marsh gas recovery device 16, gas knot screen 160, Marsh gas purifying device 161, acidity
It is gas cancellation element 162, tank body 1620, sprayer unit 1621, fog-spray nozzle 1622, cooling dewatering unit 163, pipeline 1630, cold
But piece 1631, negative pressure provide device 164, equipment for separating liquid from solid 17, conveying device 18, motor 180, sealed chamber 181, spiral and pushed away
Enter device 182, sealing gas feeding mechanism 183, methane fuelled engine 19, generator 20, waste-heat recovery device 21.
Embodiment
Referring to Fig. 1 and Fig. 3, methane power generating system 10 includes disintegrating apparatus 11, homogenization device 12, hydrolysis device
13rd, the first fermentation tank 14, the second fermentation tank 15, marsh gas recovery device 16, equipment for separating liquid from solid 17, methane fuelled engine 19, generating
Machine 20 and waste-heat recovery device 21.Disintegrating apparatus 11, homogenization device 12, hydrolysis device 13, the fermentation of the first fermentation tank 14, second
Tank 15, marsh gas recovery device 16, equipment for separating liquid from solid 17 constitute biogas and prepare purification system.
Disintegrating apparatus 11 is connected with homogenization device 12, and homogenization device 12 is connected with hydrolysis device 13, hydrolysis device 13
It is connected with the first fermentation tank 14, the first fermentation tank 14 is also connected with the second fermentation tank 15, marsh gas recovery device 16 and first ferments
Tank 14, the second fermentation tank 15 and methane fuelled engine 19 are connected, and methane fuelled engine 19 connects with generator 20 and waste-heat recovery device 21
Connect, equipment for separating liquid from solid 17 is connected with the first fermentation tank 14, the second fermentation tank 15 and hydrolysis device 13；Disintegrating apparatus 11 will be wooden
Fiber-like raw material is crushed to obtain the first fermentation raw material；Homogenization device 12 mixes the first fermentation raw material with animal wastes material
Second fermentation raw material is delivered to hydrolysis device 13 by matter to obtain the second fermentation raw material；Hydrolysis device 13 is by the second fermentation raw material
And decomposed after the mixing of zymogenic bacteria nutrient solution to obtain hydrolysis compound, and hydrolysis compound is conveyed to the first fermentation
Tank 14；Hydrogenesis and acetogenesis bacteria culture fluid is mixed and further decomposed to obtain containing first by the first fermentation tank 14 with hydrolysis compound
Acid, acetic acid and the fermentation compound of methanol and the material containing hydrogen and carbon dioxide gaseous state, and formic acid, acetic acid and methanol will be contained
Fermentation compound be delivered to the second fermentation tank 15, and gaseous material is conveyed to marsh gas recovery device 16；Second fermentation tank
15 add methane bacteria culture fluid to the fermentation compound containing formic acid, acetic acid and methanol, and are transported to marsh gas recovery device 16
Continuing fermentation after material mixing containing hydrogen and carbon dioxide gaseous state, to produce biogas；Marsh gas recovery device 16 reclaims first and sent out
The material containing hydrogen and carbon dioxide gaseous state that fermentation tank 14 is provided, and removal of impurities is carried out to the material containing hydrogen and carbon dioxide gaseous state
Processing, and the material containing hydrogen and carbon dioxide gaseous state after deoxidation is conveyed to the second fermentation tank 15, for example remove from hydrolysis
Oxygen being mingled with that equipment 13 is brought into etc..Marsh gas recovery device 16 also reclaims the biogas produced by the second fermentation tank 15, and to entering
Biogas row purification produced by the second fermentation tank reclaimed, and the biogas after purification is conveyed to methane fuelled engine.Separation of solid and liquid
The slurries that device 17 produces the first fermentation tank 14, the second fermentation tank 15 carry out lock out operation, to obtain corresponding biogas residue and natural pond
Liquid.The biogas that methane fuelled engine 19 is provided using marsh gas recovery device 16 is done work, to drive the work generating of generator 20.It is remaining
Heat reclamation device 21 reclaim methane fuelled engine 19 cooling water and exhaust in heat, and by heat be supplied to hydrolysis device 13,
First fermentation tank 14, so that the temperature in hydrolysis device 13, the first fermentation tank 14 reaches that hydrolysis and fermentation are required.In other implementations
In mode, equipment for separating liquid from solid is also connected with homogenization device, and the biogas slurry of acquisition is conveyed to homogenize and set by equipment for separating liquid from solid
It is standby, homogenization device by biogas slurry, the first fermentation raw material, animal wastes material mixing homogeneous to obtain the second fermentation raw material, so profit
With inoculation liquid of the biogas slurry as zymogenic bacteria nutrient solution, so that the second fermentation raw material fast hydrolyzing；Waste-heat recovery device also may be used
For the heat needed for the second fermentation tank provides fermentation.
Wherein, the first fermentation tank 14 includes fermentation tank 140, hydrogenesis and acetogenesis bacteria culture fluid feeding mechanism 141, fermentation tank
First through hole and charging hole are provided with the side wall of body 140, first through hole is close to the bottom of fermentation tank 140, fermentation tank 140
First through hole connected by pipeline with the tank body of the second fermentation tank 15, charging hole is close to the top of fermentation tank 140, charging hole
It is connected by pipeline with homogenization device 12；The top of fermentation tank 140 sets the second through hole and third through-hole, hydrogenesis and acetogenesis
Bacteria culture fluid feeding mechanism 141 is arranged on the top of fermentation tank 140, hydrogenesis and acetogenesis bacteria culture fluid feeding mechanism 141 it is defeated
Liquid pipe 142 is stretched into fermentation tank 140 from the second through hole of fermentation tank 140, the woven hose 142 in fermentation tank 140
Tube wall on be provided with fluid hole；Third through-hole is connected by pipeline with marsh gas recovery device 17.
Wherein, the second fermentation tank 15 is included on fermentation tank 150, methane backeria culture tank 151, the side wall of fermentation tank 150
Fourth hole, relief hole, biogas slurry access aperture are provided with, fourth hole, relief hole are close to the bottom of fermentation tank 150, fermentation tank
The fourth hole of body 150 is connected by pipeline with the fermentation tank 140 of the first fermentation tank 14, and relief hole passes through pipeline and solid-liquid point
Connected from device 17；Biogas slurry access aperture is connected by pipeline with methane backeria culture tank 151, by the biogas slurry in fermentation tank 150
It is delivered in methane backeria culture tank 151；The top of fermentation tank 150 sets fifth hole and the 6th through hole, methane backeria culture tank
151 woven hose is stretched into fermentation tank 150 from the fifth hole of fermentation tank, the woven hose 152 in fermentation tank 150
Tube wall on be provided with fluid hole, the 6th through hole is connected by pipeline with Marsh gas purifying device 16；In methane backeria culture tank 151
Biogas slurry inoculation methane backeria produces methane bacteria culture fluid, and methane bacteria culture fluid is transported into fermentation tank 150 using woven hose 152
In, so that biogas slurry is fully fermented.
Further, marsh gas recovery device 16 includes gas knot screen 160, Marsh gas purifying device 161, gas removal of impurities dress
Material of 160 acquisitions containing hydrogen and carbon dioxide gaseous state is put, and the material containing hydrogen and carbon dioxide gaseous state is carried out after removal of impurities
It is conveyed to the second fermentation tank 15；Marsh gas purifying device 161 obtains the biogas produced by the second fermentation tank 15, and the biogas obtained enters
Row alkali lye sprays after removing carbon dioxide and hydrogen sulfide, then low-temperature water removal realizes purification.Marsh gas purifying device 161 includes sour gas
Body cancellation element 162, cooling dewatering unit 163 and negative pressure provide device 164, and sour gas cancellation element 162 and second ferments
The fermentation tank 150 of tank 15 is connected, and cooling dewatering unit 163 is connected with sour gas cancellation element 162, and negative pressure provides device
164 are connected with cooling dewatering unit 163, so as to negative pressure is produced in sour gas cancellation element 162, cooling dewatering unit 163, acid
Property gas cancellation element 162 include tank body 1620, sprayer unit 1621, the top of tank body 1620 offers gas access holes and worn
Via, gas access holes is connected by pipeline with the fermentation tank 150 of the second fermentation tank 15, the fog-spray nozzle of sprayer unit 1621
1622 enter tank body 1620 from through hole, to be sprayed to the biogas for entering tank body 1620, are sprayed by fog-spray nozzle 1622
Alkaline mist absorbs offers gas discharge outlet on the sour gas in biogas, the side wall of tank body 1620, cooling dewatering unit 163
Gas entrance is connected with the gas discharge outlet on the side wall of tank body 1620, and cooling dewatering unit 163 includes pipeline 1630 and set
Put and offer pod apertures in height in pipeline 1630 gradually incremental cooling fin 1631, cooling fin 1631, pipeline 1630
First end is fixedly connected with the side wall of tank body 1620, and the second end of pipeline 1630 is higher than the first end of pipeline 1630, so in natural pond
When gas is by pipeline 1630, cooling fin 1631 makes after the vapor cooling liquid in biogas, passes through the pod apertures of cooling fin 1631
Flow back in tank body 1620.
Further, methane power generating system 10 also includes conveying device 18, and conveying device 18 also serves as biogas and prepares purification
A device in system, the delivery end of conveying device 18 sequentially pass through the fermentation tank 140 of the first fermentation tank 14 first lead to
Hole, the fourth hole of the fermentation tank 150 of the second fermentation tank 15, the delivery end of conveying device 18 is by helical feed mode by
Fermentation compound in the fermentation tank 140 of one fermentation tank 14 is delivered in the second fermentation tank 15.Conveying device 18 includes electronic
Machine 180, sealed chamber 181, spiral propeller 182 and sealing gas feeding mechanism 183；Sealed chamber 181 is fixed on the first fermentation tank
On 14 side wall, the fixing end of spiral propeller 182 enter after being passed from the side wall of the first fermentation tank 14 sealed chamber 181 with it is electronic
The output end of machine 180 is fixedly connected, spiral propeller 182 sequentially pass through the fermentation tank 140 of the first fermentation tank 14 first lead to
Hole, the fourth hole of the fermentation tank 150 of the second fermentation tank 15；Sealing gas feeding mechanism 183 is connected with sealed chamber 181, with
Sealing gas is persistently provided to prevent the fermentation compound in the first fermentation tank 14 from penetrating into sealed chamber 181.In this embodiment party
In formula, referring to Fig. 3, the both sides of spiral propeller 182 are located on the bottom of the fermentation tank 140 of the first fermentation tank 14
Each set forms accepting groove 1402 between an arc bump 1401, two arc bumps 1401, can so ensure the first fermentation
Fermentation compound in the fermentation tank 140 of tank 14 can be collected in accepting groove 1402, in order to which spiral propeller 182 will be sent out
Ferment compound is smoothly pushed in the fermentation tank 150 of the second fermentation tank 15.
In above-mentioned methane power generating system 10, lignocellulose raw material is crushed using disintegrating apparatus 11 to obtain the first fermentation
Raw material, using homogenization device 12 by the first fermentation raw material with animal wastes material mixing homogeneous to obtain the second fermentation raw material, profit
Decomposed to obtain hydrolysis compound, the first fermentation after being mixed the second fermentation raw material and zymogenic bacteria with hydrolysis device 13
Hydrogen-producing acetogens are mixed further to decompose and mixed with obtaining the fermentation containing formic acid, acetic acid and methanol by tank 14 with hydrolysis compound
Material and the material containing hydrogen and carbon dioxide gaseous state are closed, and the fermentation compound containing formic acid, acetic acid and methanol is delivered to the
Two fermentation tanks 15, and gaseous material is conveyed into marsh gas recovery device 16, the second fermentation tank 15 is to containing formic acid, acetic acid and first
The fermentation compound of alcohol adds methane bacteria culture fluid, and with methane recovery fills 16 and put and be transported to containing hydrogen and carbon dioxide gaseous state
Continuing fermentation after material mixing, to produce biogas；What the first fermentation tank 14 of recovery of marsh gas recovery device 16 was provided contains hydrogen and two
The gaseous material of carbonoxide, and removal of impurities processing is carried out to the material containing hydrogen and carbon dioxide gaseous state, and by containing after deoxidation
The material of hydrogen and carbon dioxide gaseous state is conveyed to the second fermentation tank 15；Marsh gas recovery device 16 also reclaims the second fermentation tank 15 and produced
Raw biogas, and being purified to entering the biogas row produced by the second fermentation tank 15 of recovery, so stable eliminates sulphur to export
Change the biogas of hydrogen, carbon dioxide and water to methane fuelled engine 19, and then ensure that methane fuelled engine 19 utilizes marsh gas recovery device 16
The biogas of offer is stable to do work, to drive the steady operation of generator 20 to generate electricity.
Claims (8)
1. a kind of methane power generating system, it is characterised in that：Including disintegrating apparatus, homogenization device, hydrolysis device, the first fermentation
Tank, the second fermentation tank, marsh gas recovery device, equipment for separating liquid from solid, methane fuelled engine, generator and waste-heat recovery device；It is broken
Equipment is connected with homogenization device, and homogenization device is connected with hydrolysis device, and hydrolysis device is connected with the first fermentation tank, the first hair
Fermentation tank is also connected with the second fermentation tank, and marsh gas recovery device is connected with the first fermentation tank, the second fermentation tank and methane fuelled engine, natural pond
Gas engine is connected with generator and waste-heat recovery device, equipment for separating liquid from solid and the first fermentation tank, the second fermentation tank and hydrolysis
Equipment is connected；Disintegrating apparatus crushes lignocellulose raw material to obtain the first fermentation raw material；Homogenization device ferments first
Second fermentation raw material, to obtain the second fermentation raw material, is delivered to hydrolysis device by raw material with animal wastes material mixing homogeneous；Hydrolysis
Equipment is decomposed to obtain hydrolysis compound after mixing the second fermentation raw material and zymogenic bacteria, and it is defeated to hydrolyze compound
Give the first fermentation tank；Hydrogen-producing acetogens are mixed and further decomposed to obtain containing first by the first fermentation tank with hydrolysis compound
Acid, acetic acid and the fermentation compound of methanol and the material containing hydrogen and carbon dioxide gaseous state, and formic acid, acetic acid and methanol will be contained
Fermentation compound be delivered to the second fermentation tank, and gaseous material is conveyed to marsh gas recovery device；Second fermentation tank to containing
The fermentation compound for having formic acid, acetic acid and methanol adds methane bacteria culture fluid, and be transported to containing hydrogen with marsh gas recovery device and
Continuing fermentation after the material mixing of carbon dioxide gaseous state, to produce biogas；Marsh gas recovery device reclaims what the first fermentation tank was provided
Material containing hydrogen and carbon dioxide gaseous state, and removal of impurities processing is carried out to the material containing hydrogen and carbon dioxide gaseous state, and will be de-
The material containing hydrogen and carbon dioxide gaseous state after oxygen is conveyed to the second fermentation tank；Marsh gas recovery device also reclaims the second fermentation tank
Produced biogas, and the biogas row produced by entering the second fermentation tank of recovery is purified, and the biogas after purification is conveyed to
Methane fuelled engine；The slurries that first fermentation tank, the second fermentation tank are produced are carried out lock out operation by equipment for separating liquid from solid, with acquisition pair
The biogas residue and biogas slurry answered；The biogas that methane fuelled engine is provided using marsh gas recovery device is done work, to drive generator operation
Generate electricity；Waste-heat recovery device reclaim methane fuelled engine cooling water and exhaust in heat, and by heat be supplied to hydrolysis device,
First fermentation tank, so that the temperature in hydrolysis device, the first fermentation tank reaches that hydrolysis and fermentation are required.
2. methane power generating system as claimed in claim 1, it is characterised in that：Equipment for separating liquid from solid also connects with homogenization device
Connect, the biogas slurry of acquisition is conveyed to homogenization device by equipment for separating liquid from solid, homogenization device is by biogas slurry, the first fermentation raw material, dynamic
Thing excrement material mixing homogeneous is to obtain the second fermentation raw material.
3. methane power generating system as claimed in claim 1 or 2, it is characterised in that：Marsh gas recovery device is filled including gas removal of impurities
Put, Marsh gas purifying device, gas knot screen obtains the material containing hydrogen and carbon dioxide gaseous state, and to containing hydrogen and titanium dioxide
The gaseous material of carbon is conveyed to the second fermentation tank after carrying out removal of impurities；Marsh gas purifying device obtains the natural pond produced by the second fermentation tank
After gas, and the biogas progress alkali lye spraying removing carbon dioxide and hydrogen sulfide obtained, then low-temperature water removal is purified.
4. methane power generating system as claimed in claim 3, it is characterised in that：First fermentation tank includes fermentation tank, production hydrogen production
First through hole and charging hole are provided with acetic acid bacteria culture fluid feeding mechanism, the side wall of fermentation tank, first through hole is close to fermentation
The bottom of tank body, the first through hole of fermentation tank is connected by pipeline with the tank body of the second fermentation tank, and charging hole is close to fermentation tank
The top of body, charging hole is connected by pipeline with homogenization device；The top of fermentation tank sets the second through hole and third through-hole,
Hydrogenesis and acetogenesis bacteria culture fluid feeding mechanism is arranged on the top of fermentation tank, hydrogenesis and acetogenesis bacteria culture fluid feeding mechanism it is defeated
Liquid pipe is provided with out from the second through hole of fermentation tank stretches into fermentation tank on the tube wall of the woven hose in fermentation tank
Fluid apertures；Third through-hole is connected by pipeline with marsh gas recovery device.
5. methane power generating system as claimed in claim 4, it is characterised in that：Second fermentation tank includes fermentation tank, methane backeria
Fourth hole, relief hole, biogas slurry access aperture are provided with culture tank, the side wall of fermentation tank, fourth hole, relief hole are close to hair
The bottom of fermentation tank body, the fourth hole of fermentation tank is connected by pipeline with the tank body of the first fermentation tank, and relief hole passes through pipeline
It is connected with equipment for separating liquid from solid；Biogas slurry access aperture is connected by pipeline with methane backeria culture tank, by the biogas slurry in fermentation tank
It is delivered in methane backeria culture tank；The top of fermentation tank sets fifth hole and the 6th through hole, the transfusion of methane backeria culture tank
Pipe is provided with out liquid from the fifth hole of fermentation tank stretches into fermentation tank on the tube wall of the woven hose in fermentation tank
Hole, the 6th through hole is connected by pipeline with Marsh gas purifying device；Biogas slurry inoculation methane backeria in methane backeria culture tank produces methane
Bacteria culture fluid, and methane bacteria culture fluid is transported in fermentation tank using woven hose, so that biogas slurry is fully fermented.
6. methane power generating system as claimed in claim 5, it is characterised in that：Methane power generating system also includes conveying device, defeated
Send device delivery end sequentially pass through the first fermentation tank fermentation tank first through hole, the of the fermentation tank of the second fermentation tank
Four through holes, the delivery end of conveying device is defeated by the fermentation compound in the fermentation tank of the first fermentation tank by helical feed mode
Deliver in the second fermentation tank.
7. methane power generating system as claimed in claim 6, it is characterised in that：Conveying device includes motor, sealed chamber, spiral
Propeller and sealing gas feeding mechanism；Sealed chamber is fixed on the side wall of the first fermentation tank, the fixing end of spiral propeller from
The side wall of first fermentation tank is fixedly connected after passing into sealed chamber with the output end of motor, and spiral propeller sequentially passes through
The fourth hole of the first through hole of the fermentation tank of one fermentation tank, the fermentation tank of the second fermentation tank；Sealing gas feeding mechanism
It is connected with sealed chamber, prevents the fermentation compound in the first fermentation tank from penetrating into sealed chamber with lasting offer sealing gas.
8. methane power generating system as claimed in claim 7, it is characterised in that：Marsh gas purifying device includes sour gas and eliminates dress
Put, cooling dewatering unit and negative pressure provide device, sour gas cancellation element is connected with the fermentation tank of the second fermentation tank, is cooled down
Dehydration device is connected with sour gas cancellation element, and negative pressure provides device and is connected with cooling dewatering unit, so that sour gas disappears
Except negative pressure is produced in device, cooling dewatering unit, sour gas cancellation element includes opening at the top of tank body, sprayer unit, tank body
Provided with gas access holes and through hole, gas access holes is connected by pipeline with the fermentation tank of the second fermentation tank, sprayer unit
Fog-spray nozzle enter tank body from through hole, with to enter tank body biogas spray, pass through spray spray alkaline mist absorption
Gas discharge outlet, the gas entrance and tank body of cooling dewatering unit are offered on sour gas in biogas, the side wall of tank body
Side wall on gas discharge outlet connection, it is gradually incremental cold that cooling dewatering unit includes pipeline and the height that is arranged in pipeline
But piece, cooling fin offers pod apertures, and the first end of pipeline is fixedly connected with the side wall of tank body, and the second end of pipeline is higher than pipeline
First end, so when biogas is by pipeline, cooling fin makes after the vapor cooling liquid in biogas, passes through leading for cooling fin
Discharge orifice is flowed back in tank body.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106520523A (en) * | 2016-12-28 | 2017-03-22 | 宁夏天纵泓光余热发电技术股份有限公司 | Biogas power generation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106520523A (en) * | 2016-12-28 | 2017-03-22 | 宁夏天纵泓光余热发电技术股份有限公司 | Biogas power generation system |
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Effective date of registration: 20230111 Address after: 751300 Tongxin Industrial Park, Wuzhong City, Ningxia Hui Autonomous Region Patentee after: NINGXIA RUN DE BIOTECHNOLOGY Co.,Ltd. Address before: 750002 Yinchuan Ningfeng District, the Ningxia Hui Autonomous Region 490, Yinchuan IBI breeding center two phase 10, 3 floor 301 room. Patentee before: XINGXIA TZHG WASTE HEAT GENERATION TECHNOLOGY CO.,LTD. |