CN110218644A - A kind of ring middle ring interactive integration anaerobic fermentation reaction unit - Google Patents
A kind of ring middle ring interactive integration anaerobic fermentation reaction unit Download PDFInfo
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- 238000000855 fermentation Methods 0.000 title claims abstract description 134
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- 238000010438 heat treatment Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
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Abstract
The invention discloses a kind of ring middle ring interactive integration anaerobic fermentation reaction units, including outer ring fermentor and the inner ring fermentor that is arranged in inside outer ring fermentor, the outer ring fermentor includes methane outlet channel and outer ring feed pipe, the outer ring discharge nozzle that is connected to the bottom of outer ring fermentor, the outer ring bottom plate that outer ring fermenter base is arranged in；Inner ring fermentor includes the inner ring discharge nozzle for being covered on inner ring fermentation upper end and forming gas storage holder, methane outlet channel and the inner ring feed pipe in inner ring methane gas producing area between inner ring material liquid level, be connected to the bottom of inner ring fermentor, the inner ring bottom plate that inner ring fermenter base is arranged in；In the vertical direction, which is higher than outer ring bottom plate, it can be achieved that inner and outer ring fermentor hierarchal order arbitrary switch, cold winter or cold district effectively prevent thermal loss using inner ring as main fermentation tank；Entire fermentation tank need to only design the cost for eliminating excavation of earthwork engineering on the ground.
Description
Technical field
The invention belongs to anaerobic fermentation system fields, and in particular to a kind of ring middle ring interactive integration anaerobic fermentation reaction
Device.
Background technique
Problem 1: current large and medium-sized anaerobic fermentation field utilizes two-stage anaerobic zymotechnique, i.e., is sent out by a ring middle ring two-stage
Fermentation tank is usually all with the tank body of advanced material as first order fermentor simultaneously or two single tank bodies series connection solely operation fermentations,
Referred to as main fermentation tank, laggard material as second level fermentor, referred to as secondary fermentor is (such as: CN201610548828.X patent
A kind of title: ring middle ring two-stage integral anaerobic fermentation process), 90% or so charging fermentation is finished by main fermentation tank,
Then time fermentor is pumped into again further to ferment.Above-mentioned ring middle ring two-stage fermentation tank is that outer ring is fermented as the first order
Tank, inner ring is as second level fermentor, and since the back-plane design of inner ring and outer rings is at contour, outer ring can be by side wall
Catheter pump suction material；And inner ring due in center and area it is big, and enter inner ring material all contain a large amount of solids
Sediment causes its discharge extremely difficult, can only be as secondary fermentor in order to not influence output capacity, and outer ring is as main fermentation
Tank, the two cannot exchange completely in design structure.But it is then needed in cold winter or the area of cold, outer ring fermentor
It wants more heat energies and inevitably there is thermal loss although outer ring has insulating layer come temperature needed for keeping anaerobic fermentation,
Have to biogas caused by anaerobic fermentation tank, consumption is fermentation using waterpower thermal cycle greatly for heating water
Tank heating, final biogas utilization rate are very low；It is had differences additionally, due to the weather of each department, cold area needs will be inside and outside
Underground type or part underground type are helped in the design of two-stage fermentation tank, will increase the cost of the engineerings such as excavation of earthwork.So if energy
Inner and outer ring two-stage fermentation tank arbitrarily can mutually be switched, inner ring is kept the temperature under the encirclement of outer ring fermentor as main fermentation tank
Effect is good, and two-stage fermentation tank body can be set on the ground, so that it may solve the above problems.
Problem 2: the ring middle ring two-stage fermentation tank mentioned in problem 1, at present due to needing to install at the top of inner ring fermentor
Gas storage film, therefore its height is often higher by 1 meter or so than outer ring fermentor, in order to maximumlly utilize the sky in inner ring fermentor
Between and improve output capacity, therefore the liquid level in inner ring fermentor is often higher than the liquid level of outer ring fermentor, this can generate 2 and ask
Topic: being 1. pooled to that outer ring generating tube road is unified to be exported since inner ring produces gas, and in the design of inner ring generating tube road unavoidably than
Outer ring generating tube road is high, therefore can also generate pressure difference with outer ring generating tube road between the two, abbreviation crushing, if outer ring conduct
Main fermentation tank, gas production are equivalent to the 80% of total gas production, and the production gas of inner and outer ring can be exported smoothly, but if allow inner ring
When as main fermentation tank, difficulty can be discharged in the biogas that outer ring generates under the action of crushing, will affect inner and outer ring two-stage fermentation tank
Any mutual switching, therefore want inner and outer ring two-stage fermentation tank arbitrarily mutually switch, it is also necessary to solve the above problems.2. this liquid
Position pressure difference meeting long-term existence leads to that the pressure that the internal ring-side wall of this pressure difference generates must be taken into consideration when tank is fermented in design
Power increases pressure difference design cost and security risk.
Problem 3: the ring middle ring two-stage fermentation tank mentioned in problem 1, although blender used at present can be from vertical
Direction adjusts the position of blender as to allow the material stirring in fermentor uniform as possible, but it has 2: 1. at present
Blender can be only installed on the position close to fermentation pot sidewall, and the center of fermentation tank is extremely difficult to the mesh stirred evenly
, in addition, outer ring fermentor and inner ring fermentor are full closeding state, it is readily formed crust at the top of fermentor materials inside,
It needs not timing that blender is promoted to liquid level position and carries out skin breaking；2. since gas storage film is point internal layer and outer bilayer knot
Structure, when submerged pushing flow mixer is installed at top, it is necessary to could be installed after aperture simultaneously on gas storage film inner layer film and outer membrane
Biogas gas collecting apparatus and pushing flow mixer, in addition blender can generate very big power when working, it is easy to the company of gas storage film
Sealing position shaking is connect, storage gas film sealing loosens the leakage for causing biogas.
Summary of the invention
In view of the above problems, being used the present invention provides a kind of ring middle ring interactive integration anaerobic fermentation reaction unit
Inner and outer ring primary and secondary Interactive Design raises the contour design of inner ring back-plane design, inner and outer ring liquid level, charging and discharge fluid mechanics
Design, the design of liquidometer interactive controlling etc., the above-mentioned various problems of effective solution.Its technical solution is as follows:
A kind of ring middle ring interactive integration anaerobic fermentation reaction unit, comprising:
Outer ring fermentor, the methane outlet channel being connected including the outer ring methane gas producing area with the top of outer ring fermentor
With outer ring feed pipe, the outer ring discharge nozzle being connected to the bottom of outer ring fermentor, the outer ring bottom that outer ring fermenter base is arranged in
Plate；
Inner ring fermentor inside outer ring fermentor is set comprising be covered on inner ring fermentation upper end and with inner ring object
Feed liquid interdigit forms the gas storage holder in inner ring methane gas producing area, is connected with the inner ring methane gas producing area at the top of inner ring fermentor
Methane outlet channel and inner ring feed pipe, the inner ring discharge nozzle being connected to the bottom of inner ring fermentor, setting are in inner ring fermentor
The inner ring bottom plate of bottom；In the vertical direction, the locating height of the inner ring bottom plate is higher than outer ring bottom plate.
Preferably, it is provided on inner ring fermentor and outer ring fermentor for controlling inner ring material liquid level and outer ring material liquid
The identical control unit of height of position.
Preferably, the control unit includes the liquidometer being arranged on inner ring fermentor and/or outer ring fermentor；Respectively
Inner ring feed pipe, outer ring feed pipe, inner ring discharge nozzle, the stream on outer ring discharge nozzle for mass flow in control piper are set
Adjustable valve；Wherein flowmeter and flow control valve are electrically connected.
Preferably, the outer ring fermentor and inner ring fermentor further include a shared top plate, this shares top plate and covers completely
The top of lid outer ring fermentor, and inner ring ring-shaped platform, the inner ring annular flat are formed behind the top of part covering inner ring fermentor
Platform inside edge surrounds an exhaust outlet, is equipped with flexible membrane at the top of the exhaust outlet, wherein inner ring ring-shaped platform, exhaust outlet, flexibility
Film and inner ring material liquid level collectively constitute the gas storage holder；It is respectively provided on the shared top plate for placing stirring dress
It sets and the inner ring platform cabinet as methane outlet channel and outer ring platform cabinet；Install to its bottom end seal of inner ring platform cabinet
It is internal to be connected with the inside of inner ring fermentation tank on inner ring ring-shaped platform；Pacify to its bottom end seal of outer ring platform cabinet
It is internal to be connected with the inside of outer ring fermentation tank mounted in the top of outer ring fermentation tank.
Preferably, after inner ring feed pipe successively protrudes into outer ring fermentation pot sidewall, inner ring fermentation pot sidewall, material is along exporter
The ring fermentor line of centres is that axial screw flows within material can be pushed in tank to be formed after to discharge；Inner ring discharge nozzle is successively stretched
After entering outer ring fermentation pot sidewall, inner ring fermentation pot sidewall, material enters inner ring discharge nozzle along helix flow direction；Outer ring charging
After pipe protrudes into outer ring fermentation pot sidewall, material can push material using the inner ring fermentor line of centres as axis after export direction discharge
Spiral flow direction；After outer ring discharge nozzle protrudes into outer ring fermentation pot sidewall, material enters outer ring discharge nozzle along helix flow direction.
Preferably, inner ring feed pipe includes first horizontal segment and the second horizontal segment, and wherein first horizontal segment is located at outer ring hair
In fermentation tank tank body, protrude into inner ring fermentation pot sidewall after there are bending formed the second horizontal segment；Inner ring discharge nozzle includes third level
Section and the 4th horizontal segment, wherein third horizontal segment is located in outer ring fermentation tank, there is folding after protruding into inner ring fermentation pot sidewall
Bending is at the 4th horizontal segment；The feedstock direction of second horizontal segment and the discharging direction of the 4th horizontal segment are oppositely arranged；Outer ring into
Expects pipe includes the 5th horizontal segment, is in 90 ° of angles with first horizontal segment, parallel with the second horizontal segment；Outer ring discharge nozzle includes the
Six horizontal segments are in 90 ° of angles with third horizontal segment, parallel with the 4th horizontal segment；The feedstock direction and the 6th of 5th horizontal segment
The discharging direction of horizontal segment is oppositely arranged.
Preferably, the inner ring fermentor further includes multiple is arranged inside inner ring fermentor and along inner ring fermentor circumference
The inner ring agitating device of directional spreding comprising inner ring stirs guide rod and inner ring blender, and wherein inner ring stirring guide rod upper end is set
It sets on inner ring platform container body, lower end is fixed on inner ring fermentation tank bottom, and inner ring blender can be slided up and down and be circumferentially rotated
Be mounted on inner ring stirring guide rod on；The outer ring fermentor further includes multiple is arranged inside outer ring fermentor and along outer ring hair
The outer ring agitating device of fermentation tank circumferencial direction distribution comprising outer ring stirs guide rod and outer ring blender, and wherein outer ring stirring is led
Bar upper end is arranged on outer ring platform container body, and lower end is fixed on outer ring fermentation tank bottom, outer ring blender can slide up and down and
What is circumferentially rotated is mounted on outer ring stirring guide rod.
Preferably, at least 1 inner ring agitating device is mounted on the outlet of inner ring feed pipe and inner ring discharging tube inlet line
The shortest distance between；At least 1 outer ring agitating device is mounted on the outlet of outer ring feed pipe and outer ring discharging tube inlet line
The shortest distance between.
Preferably, the interior circumstance temperature of monitoring inner ring fermentor, outer ring fermentor is separately provided on the shared top plate
Spend sensor and outer ring temperature sensor.
Preferably, cross section where the inner ring bottom plate is with the distance between cross section where outer ring bottom plate
0.5~2 meter.
Preferably, platform cabinet connecting tube, inner ring hair are provided between the inner ring platform cabinet and outer ring platform cabinet
Biogas caused by fermentation tank by inner ring platform cabinet enter after platform cabinet connecting tube with natural pond caused by outer ring fermentor
Gas is discharged after collecting.
Preferably, inner ring ring-shaped platform annular width is 2m~4m.
Preferably, it is respectively equipped with inner ring liquidometer and outer ring liquidometer on inner ring fermentor and outer ring fermentor, it is described interior
Ring feed pipe, inner ring discharge nozzle, is provided with flow control valve on outer ring discharge nozzle at outer ring feed pipe, in control piper
Mass flow；Flow control valve on the inner ring liquidometer and inner ring feed pipe, inner ring discharge nozzle is electrically connected, inner ring liquid
When position meter detection inner ring liquid level of fermentation tank is higher than reservation threshold, information feeds back to flow control valve, and inner ring feed pipe stops charging,
Inner ring discharge nozzle starts to discharge；When inner ring liquidometer detection of liquid level is lower than reservation threshold, information feeds back to flow control valve, inner ring
Feed pipe starts to feed, and inner ring discharge nozzle stops discharging；
Flow control valve on the outer ring liquidometer and outer ring feed pipe, outer ring discharge nozzle is electrically connected, outer ring liquid level
When meter detection outer ring liquid level of fermentation tank is higher than reservation threshold, information feeds back to flow control valve, and outer ring feed pipe stops charging, outside
Ring discharge nozzle starts to discharge；When outer ring liquidometer detection of liquid level is lower than reservation threshold, information feeds back to flow control valve, outer ring into
Expects pipe starts to feed, and outer ring discharge nozzle stops discharging；The inner ring liquidometer and outer ring liquidometer are provided with an identical high position
With low level reservation threshold.
The utility model has the advantages that
Compared with prior art, the present invention having the advantage that
1) inner ring fermentation tank bottom is higher than the design of outer ring fermentation tank bottom, is conducive to inner ring fermentor and object is smoothly discharged
Material, inner ring can be used as main fermentation tank, i.e. inner and outer ring two-stage fermentation tank arbitrarily can mutually switch；Cold winter or cold ground
Area effectively prevents the loss of heat using inner ring as main fermentation tank, while entire fermentation tank need to only design on the ground,
Eliminate the cost of excavation of earthwork engineering.
2) pass through the liquidometer control charging and discharging in inner and outer ring, it is ensured that the intracorporal liquid level of inner ring fermentor and inner ring are sent out
The intracorporal liquid level of fermentation tank approaches unanimously in real time, i.e., inside and outside to solve without pressure difference when inner ring is as main fermentation tank, what outer ring generated
Biogas can be difficult to the problem excluded under the action of crushing, be conducive to inner and outer ring two-stage fermentation tank and arbitrarily mutually switch；In simultaneously
Outer ring has saved pressure difference design cost, has reduced security risk without pressure difference；Additionally, due in inner ring fermentor and outer ring fermentor
Material liquid level approach it is consistent, therefore inner ring fermentor and outer ring fermentor only need one liquidometer of each setting, though some
It breaks down, another can also substitute, and this design only needs to be equipped with 2 liquidometers, save cost.Because previous
Ring middle ring two-stage fermentation tank, when its oepration at full load, since inner and outer ring liquid level is different, inner and outer ring Liquid level is all independent
, such as when liquidometer failure in inner ring fermentor, high liquid level or low liquid level is monitored when discharging when will be unable to charging,
It usually requires to increase a liquidometer, so as to the using and the reserved, so each 2 liquidometers of inner and outer ring fermentor need 4 liquid levels altogether
Meter, increases cost input.
3) the second horizontal segment on inner ring feed pipe, the 4th horizontal segment on inner ring discharge nozzle are oppositely arranged；Outer ring charging
The 6th horizontal segment on the 5th horizontal segment, outer ring discharge nozzle on pipe is oppositely arranged, ingenious that fluid mechanics principle, material is utilized
The inflow power of import and the outflow power of discharge port are conducive to the material in tank and form spiral flow to promoting itself stirring for material
It mixes, reduce the load of blender and prevents top material from crusting.
4) at least 1 inner ring agitating device be mounted on inner ring feed pipe outlet with inner ring discharge tube inlet line it is most short
Between distance；At least 1 outer ring agitating device be mounted on outer ring feed pipe outlet with outer ring discharge tube inlet line it is most short
Between distance；When into material, adjusts blender height and pushing direction is consistent with the inflow power direction of material inlet, have
Conducive to promote tank in material formed spiral flow to, promote material itself stirring, reduce blender load and prevent top
Material skull.
5) setting for a shared top plate, especially inner ring ring-shaped platform is set at the top of outer ring fermentor and inner ring fermentor
Only gas collecting apparatus and agitating device need to be arranged in meter on the inner ring ring-shaped platform, be not necessarily to aperture on the flexible film, reduce biogas
The risk of leakage, while operating space is provided for the installation and maintenance of agitating device.
Detailed description of the invention
Fig. 1 illustrates the structural schematic diagram of anaerobic fermentation reaction unit of the invention；
Fig. 2 illustrates the top view of anaerobic fermentation reaction unit of the invention；
Fig. 3 illustrates the A-A the schematic diagram of the section structure of anaerobic fermentation reaction unit of the invention in Fig. 2；
Fig. 4 illustrates the structural schematic diagram of inner ring feed pipe, outer ring feed pipe, inner ring discharge nozzle, outer ring discharge nozzle.
In figure: 1- outer ring fermentor；1-1- outer ring feed pipe；The 5th horizontal segment of 1-1-1-；1-2- outer ring discharge nozzle；1-2-
The 6th horizontal segment of 1-；1-3- outer ring bottom plate；1-4- outer ring liquidometer；1-5- outer ring platform cabinet；1-6- outer ring agitating device；1-
6-1- outer ring stirs guide rod；1-6-2- outer ring blender；1-7- outer ring temperature sensor；2- inner ring fermentor；2-1- inner ring into
Expects pipe；2-1-1- first horizontal segment；The second horizontal segment of 2-1-2-；2-2- inner ring discharge nozzle；2-2-1- third horizontal segment；2-2-2-
4th horizontal segment；2-3- inner ring bottom plate；2-4- gas storage holder；2-4-1- inner ring ring-shaped platform；2-4-2- exhaust outlet；2-4-3- is flexible
Film；2-5- inner ring liquidometer；2-6- inner ring material liquid level；2-7- inner ring platform cabinet；2-8- inner ring agitating device；In 2-8-1-
Ring stirs guide rod；2-8-2- inner ring blender；2-9 inner ring temperature sensor；3- platform cabinet connecting tube.
Specific embodiment
To keep purpose and the technical solution of the embodiment of the present invention clearer, below in conjunction with the attached of the embodiment of the present invention
Figure, is clearly and completely described the technical solution of the embodiment of the present invention.Obviously, described embodiment is of the invention
A part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, those of ordinary skill in the art
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of being not necessarily to creative work.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
As shown in Figures 1 to 4, a kind of ring middle ring interactive integration anaerobic fermentation reaction unit, comprising:
Outer ring fermentor 1, the methane outlet being connected including the outer ring methane gas producing area with the top of outer ring fermentor are logical
Road and outer ring feed pipe 1-1, the outer ring discharge nozzle 1-2 being connected to the bottom of outer ring fermentor, setting are in outer ring fermenter base
Outer ring bottom plate 1-3；
Inner ring fermentor 2 inside outer ring fermentor is set comprising is covered on inner ring fermentation upper end and and inner ring
The inner ring methane gas producing area of the gas storage holder 2-4 in inner ring methane gas producing area and the top of inner ring fermentor are formed between material liquid level 2-6
The methane outlet channel being connected and inner ring feed pipe 2-1, it the inner ring discharge nozzle 2-2 being connected to the bottom of inner ring fermentor, sets
Set the inner ring bottom plate 2-3 in inner ring fermenter base；In the vertical direction, the locating height of the inner ring bottom plate is higher than outer ring bottom plate.
Inner ring fermentation tank bottom is higher than the design of outer ring fermentation tank bottom, is conducive to inner ring fermentor and material is smoothly discharged, inner ring can be made
For main fermentation tank, i.e. inner and outer ring two-stage fermentation tank arbitrarily can mutually switch；In cold winter or cold district, inner ring is made
For main fermentation tank, the loss of heat is effectively prevented, while entire fermentation tank need to only design on the ground, eliminates earthwork digging
Dig the cost of engineering.
Further, in order to solve during inner and outer ring two-stage fermentation tank arbitrarily exchanges primary and secondary fermentation pattern, because existing for
It is provided on problem brought by inner and outer ring fermentor pressure difference, inner ring fermentor 2 and outer ring fermentor 1 for controlling inner ring material
The identical control unit of the height of liquid level and outer ring material liquid level；The control unit include setting in inner ring fermentor 2 and/or
Liquidometer on outer ring fermentor 1；Be separately positioned on inner ring feed pipe, outer ring feed pipe, inner ring discharge nozzle, on outer ring discharge nozzle
Flow control valve for mass flow in control piper；Wherein flowmeter and flow control valve are electrically connected.
Here there are two kinds of situations:
(1) when be equipped with liquidometer on inner ring fermentor 2 and outer ring fermentor 1 the case where: inner ring fermentor 2 and outer ring hair
Inner ring liquidometer 2-5 and outer ring liquidometer 1-4 are respectively equipped in fermentation tank 1, the inner ring feed pipe, outer ring feed pipe, inner ring go out
It is provided with flow control valve in expects pipe, outer ring discharge nozzle, for the mass flow in control piper；The inner ring liquidometer with
Flow control valve on inner ring feed pipe, inner ring discharge nozzle is electrically connected, and inner ring liquidometer detection inner ring liquid level of fermentation tank is higher than
When reservation threshold, information feeds back to flow control valve, stops charging；When inner ring liquidometer detection of liquid level is lower than reservation threshold, letter
Breath feeds back to flow control valve, starts to feed；Flow on the outer ring liquidometer and outer ring feed pipe, outer ring discharge nozzle is adjusted
Valve is electrically connected, and when outer ring liquidometer detects outer ring liquid level of fermentation tank higher than reservation threshold, information feeds back to flow control valve, stops
Only feed；When outer ring liquidometer detection of liquid level is lower than reservation threshold, information feeds back to flow control valve, starts to feed；In described
Ring liquidometer and outer ring liquidometer are provided with identical high-order and low level reservation threshold, therefore can ensure inner and outer ring in real time
Material liquid level approach is consistent.
It is further to note that when some liquidometer failure in inner ring fermentor or outer ring fermentor, it is inside and outside
The material of ring can't be affected, and will continue to work normally.By taking inner ring liquidometer failure as an example, it is described as follows:
The volume of outer ring fermentation tank and inner ring fermentation tank is equal, and fermentation time is equal, therefore since operating normally that time, interior
Ring fermentor approaches consistent liquid level monitoring in inner ring fermentor and outer ring fermentor with the ring liquid level in outer ring fermentor always
Data are shared by PLC control system；When fermentor device operates normally, the inlet amount phase of outer ring fermentor and inner ring fermentor
Together, outer ring fermentor is also identical as the load of inner ring fermentor；After inner ring liquidometer failure, anaerobic fermentation reaction unit
PLC control system can be shown as 0, and a determining program is incorporated into program, if inner ring liquidometer is supervised with outer ring liquidometer
The data of survey are unequal, and inner ring liquid level is calculated as 0, then PLC control system can be the detection data assignment that outer ring liquidometer is shown
Inner ring liquidometer is given, so that inner ring liquidometer and the data of outer ring liquidometer are completely the same, although inner ring liquidometer failure at this time,
But it still has the monitoring data conveyed by outer ring liquidometer, and the monitoring data will continue to feed back to inner ring feed pipe, interior
Flow control valve on ring discharge nozzle, and then normal control charging and discharging.If outer ring liquidometer failure, similarly.
Since inner ring fermentor is consistent with the material liquid level approach in outer ring fermentor, inner ring fermentor and outer ring hair
Fermentation tank only needs one liquidometer of each setting, even if some breaks down, another can also substitute, and this design only needs to match
Standby 2 liquidometers, have saved cost.Because of previous ring middle ring two-stage fermentation tank, when its oepration at full load, due to inside and outside
Ring liquid level is different, and inner and outer ring Liquid level is all independent, such as when liquidometer failure in inner ring fermentor, will be unable to into
When material high liquid level or discharging when low liquid level be monitored, it usually needs increase a liquidometer, so as to the using and the reserved, in this way inside and outside
Each 2 liquidometers of ring fermentor, need 4 liquidometers altogether, increase cost input.
(2) when on inner ring fermentor 2 and outer ring fermentor 1 only have 1 fermentor in be equipped with liquidometer the case where:
As the principle of the liquidometer failure in situation (1) in some fermentor, such as only in outer ring fermentor
Interior installation liquidometer, since the volume of outer ring fermentation tank and inner ring fermentation tank is equal, fermentation time is equal, therefore from normal
That time is run, outer ring fermentor is identical as the inlet amount of inner ring fermentor, and outer ring fermentor goes out with inner ring fermentor
Doses is also identical, therefore inner ring fermentor approaches consistent always with the ring liquid level in outer ring fermentor, therefore only needs to set here
Set 1 liquidometer.It has problems in that, if the liquidometer failure, influences the normal operation of fermentor, therefore
Preferably, it is more appropriate to be respectively provided with liquidometer in the inner and outer ring fermentor of inner ring fermentor.
Further, the outer ring fermentor and inner ring fermentor further include a shared top plate, and it is complete that this shares top plate
The top of outer ring fermentor is covered, and forms inner ring ring-shaped platform 2-4-1, the inner ring behind the top of part covering inner ring fermentor
Ring-shaped platform inside edge surrounds an exhaust outlet 2-4-2, is equipped with flexible membrane 2-4-3 at the top of the exhaust outlet, wherein inner ring annular
Platform, exhaust outlet, flexible membrane and inner ring material liquid 2-6 collectively constitute the gas storage holder；On the shared top plate respectively
Provided with the inner ring platform cabinet 2-7 and outer ring platform cabinet 1-5 for placing agitating device and as methane outlet channel；It is interior
It is mounted on inner ring ring-shaped platform to its bottom end seal of ring platform cabinet, it is internal to be connected with the inside of inner ring fermentation tank；
Its bottom end seal of outer ring platform cabinet it is mounted on the top of outer ring fermentation tank, the internal inside phase with outer ring fermentation tank
Connection.
Setting one shared top plate, especially inner ring ring-shaped platform sets at the top of above-mentioned outer ring fermentor and inner ring fermentor
Only gas collecting apparatus and agitating device need to be arranged in meter on the inner ring ring-shaped platform, be not necessarily to aperture on the flexible film, reduce biogas
The risk of leakage, while operating space is provided for the installation and maintenance of agitating device.
Further, after inner ring feed pipe 2-1 successively protrudes into outer ring fermentation pot sidewall, inner ring fermentation pot sidewall, material edge
The ring fermentor line of centres is that axial screw flows within material being pushed in tank to be formed after export direction discharge；Inner ring discharge nozzle
After 2-2 successively protrudes into outer ring fermentation pot sidewall, inner ring fermentation pot sidewall, material enters inner ring along helix flow direction and discharges
Pipe；After outer ring feed pipe 1-1 protrudes into outer ring fermentation pot sidewall, material can push material to ferment with inner ring after export direction discharge
The tank line of centres is axial screw flow direction；After outer ring discharge nozzle 1-2 protrudes into outer ring fermentation pot sidewall, material is along the helix stream
To entrance outer ring discharge nozzle.This is ingenious in design to be utilized fluid mechanics principle, the stream of the inflow power and discharge port of material inlet
Out power be conducive to the material in tank formed spiral flow to, promote material itself stirring, reduce blender load and prevent
Top material crust.
As more preferred specific embodiment, the maximized material promoted in tank forms spiral flow to the inner ring
Feed pipe 2-1 includes first horizontal segment 2-1-1 and the second horizontal segment 2-1-2, and wherein first horizontal segment is located at outer ring fermentor tank
In body, protrude into inner ring fermentation pot sidewall after there are bending formed the second horizontal segment；Inner ring discharge nozzle 2-2 includes third horizontal segment 2-
2-1 and the 4th horizontal segment 2-2-2, wherein third horizontal segment is located in outer ring fermentation tank, after protruding into inner ring fermentation pot sidewall
There are bendings to form the 4th horizontal segment；The feedstock direction of second horizontal segment and the discharging direction of the 4th horizontal segment are oppositely arranged；
Outer ring feed pipe 1-1 includes the 5th horizontal segment 1-1-1, is in 90 ° of angles with first horizontal segment, with the second horizontal segment
In parallel；Outer ring discharge nozzle 1-2 includes the 6th horizontal segment 1-2-1, is in 90 ° of angles with third horizontal segment, flat with the 4th horizontal segment
Row；The discharging direction of the feedstock direction and the 6th horizontal segment of 5th horizontal segment is oppositely arranged.
Further, in order to promote material in tank to form spiral flow to realizing itself stirring of material, reduce blender
Load and prevent top material from crusting.The inner ring fermentor further includes multiple is arranged inside inner ring fermentor and along inner ring
The inner ring agitating device 2-8 of fermentor circumferencial direction distribution comprising inner ring stirs guide rod 2-8-1 and inner ring blender 2-8-2,
Wherein inner ring stirring guide rod upper end is arranged on inner ring platform container body, and lower end is fixed on inner ring fermentation tank bottom, inner ring stirring
Device can slide up and down and what is circumferentially rotated is mounted on inner ring stirring guide rod；The outer ring fermentor further includes multiple is arranged outside
Inside ring fermentor and along the outer ring agitating device 1-6 of outer ring fermentor circumferencial direction distribution comprising outer ring stirs guide rod 1-
6-1 and outer ring blender 1-6-2, wherein outer ring stirring guide rod upper end is arranged on outer ring platform container body, and lower end is fixed on outer ring
Fermentation tank bottom, outer ring blender can slide up and down and what is circumferentially rotated is mounted on outer ring stirring guide rod；In at least 1
Ring agitating device is mounted between the outlet of inner ring feed pipe and the shortest distance of inner ring discharging tube inlet line；At least 1 outer
Ring agitating device is mounted between the outlet of outer ring feed pipe and the shortest distance of outer ring discharging tube inlet line.When into material,
It adjusts blender height and pushing direction is consistent with the inflow power direction of material inlet, may advantageously facilitate the material shape in tank
It is flowed at spiral, promotes itself stirring of material, reduce the load of blender and prevent top material from crusting.
Further, in order to preferably monitor the temperature conditions in inner ring fermentor and outer ring fermentor, the shared top
The inner ring temperature sensor 2-9 and outer ring temperature sensing of monitoring inner ring fermentor, outer ring fermentor are separately provided on plate
Device 1-7.
Further, generated biogas in inner ring fermentor and outer ring fermentor is collected for convenience, and the inner ring is flat
Platform cabinet connecting tube 3 is provided between platform cabinet and outer ring platform cabinet, biogas caused by inner ring fermentor passes through inner ring
Platform cabinet enters after platform cabinet connecting tube collect with biogas caused by outer ring fermentor after be discharged.
In this specific embodiment, cross section where inner ring bottom plate can be with the distance between cross section where outer ring bottom plate
0.5~2 meter；Inner ring ring-shaped platform annular width can be 2m~4m.
Heretofore described flow control valve can be knife gate valve；Inner ring feed pipe, outer ring feed pipe, inner ring discharging
Pipe, outer ring discharge nozzle are linked by pump group.
Above-described embodiment is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill of the art
For personnel, without departing from the principle of the present invention, several improvement and equivalent replacement can also be made, these are to the present invention
Claim improve with the technical solution after equivalent replacement, each fall within protection scope of the present invention.
Claims (13)
1. a kind of ring middle ring interactive integration anaerobic fermentation reaction unit characterized by comprising
Outer ring fermentor (1), the methane outlet channel being connected including the outer ring methane gas producing area with the top of outer ring fermentor
With outer ring feed pipe (1-1), the outer ring discharge nozzle (1-2) being connected to the bottom of outer ring fermentor, setting at outer ring fermentor bottom
The outer ring bottom plate (1-3) in portion；
Inner ring fermentor (2) inside outer ring fermentor is set comprising be covered on inner ring fermentation upper end and with inner ring object
Gas storage holder (2-4), the inner ring methane gas producing with the top of inner ring fermentor that inner ring methane gas producing area is formed between feed liquid position (2-6)
Methane outlet channel that area is connected and inner ring feed pipe (2-1), the inner ring discharge nozzle (2- being connected to the bottom of inner ring fermentor
2), the inner ring bottom plate (2-3) of inner ring fermenter base is set；In the vertical direction, the locating height of the inner ring bottom plate is higher than outer
Ring bottom plate.
2. the anaerobic fermentation reaction unit as described in right wants 1, it is characterised in that: inner ring fermentor (2) and outer ring fermentor (1)
On be provided with the identical control unit of height for controlling inner ring material liquid level and outer ring material liquid level.
3. the anaerobic fermentation reaction unit as described in right wants 2, it is characterised in that: the control unit includes that setting is sent out in inner ring
Liquidometer in fermentation tank (2) and/or outer ring fermentor (1)；It is separately positioned on inner ring feed pipe, outer ring feed pipe, inner ring discharging
Flow control valve on pipe, outer ring discharge nozzle for mass flow in control piper；Wherein flowmeter and flow control valve are electrical
Connection.
4. the anaerobic fermentation reaction unit as described in right wants 3, it is characterised in that: the outer ring fermentor and inner ring fermentor are also
Including a shared top plate, this shares the top that outer ring fermentor is completely covered in top plate, and part covers the top of inner ring fermentor
Inner ring ring-shaped platform (2-4-1) is formed behind portion, which surrounds an exhaust outlet (2-4-2), the exhaust
Flexible membrane (2-4-3) is installed at the top of mouthful, wherein inner ring ring-shaped platform, exhaust outlet, flexible membrane and the position inner ring material liquid (2-6)
Collectively constitute the gas storage holder；It is respectively provided on the shared top plate for placing agitating device and leading to as methane outlet
The inner ring platform cabinet (2-7) and outer ring platform cabinet (1-5) in road；It is mounted on inner ring ring to its bottom end seal of inner ring platform cabinet
It is internal to be connected with the inside of inner ring fermentation tank on shape platform；It is mounted on outer ring to its bottom end seal of outer ring platform cabinet
The top of fermentation tank, it is internal to be connected with the inside of outer ring fermentation tank.
5. the anaerobic fermentation reaction unit as described in right wants 4, it is characterised in that: inner ring feed pipe (2-1) successively protrudes into outer ring
It ferments after pot sidewall, inner ring fermentation pot sidewall, material can push ring fermentation within material formation in tank after export direction discharge
The tank line of centres is axial screw flow direction；Inner ring discharge nozzle (2-2) successively protrudes into outer ring fermentation pot sidewall, inner ring fermentation pot sidewall
Afterwards, material enters inner ring discharge nozzle along helix flow direction；
After outer ring feed pipe (1-1) protrudes into outer ring fermentation pot sidewall, material can push material with inner ring after export direction discharge
The fermentor line of centres is axial screw flow direction；After outer ring discharge nozzle (1-2) protrudes into outer ring fermentation pot sidewall, material is along the spiral shell
Spin line flow direction enters outer ring discharge nozzle.
6. the anaerobic fermentation reaction unit as described in right wants 5, it is characterised in that: inner ring feed pipe (2-1) includes first level
Section (2-1-1) and the second horizontal segment (2-1-2), wherein first horizontal segment is located in outer ring fermentation tank, protrudes into inner ring fermentation
There are bendings to form the second horizontal segment after pot sidewall；Inner ring discharge nozzle (2-2) includes that third horizontal segment (2-2-1) and the 4th are horizontal
Section (2-2-2), wherein third horizontal segment be located at outer ring fermentation tank in, protrude into inner ring ferment pot sidewall after there are bendings to be formed
4th horizontal segment, the feedstock direction of second horizontal segment and the discharging direction of the 4th horizontal segment are oppositely arranged；
Outer ring feed pipe (1-1) includes the 5th horizontal segment (1-1-1), is in 90 ° of angles with first horizontal segment, with the second horizontal segment
In parallel；Outer ring discharge nozzle (1-2) includes the 6th horizontal segment (1-2-1), is in 90 ° of angles with third horizontal segment, with the 4th level
Duan Pinghang；The discharging direction of the feedstock direction and the 6th horizontal segment of 5th horizontal segment is oppositely arranged.
7. the anaerobic fermentation reaction unit as described in right wants 6 any one, it is characterised in that: the inner ring fermentor further includes
It is multiple to be arranged in inside inner ring fermentor and along the inner ring agitating device (2-8) of inner ring fermentor circumferencial direction distribution comprising
Inner ring stirs guide rod (2-8-1) and inner ring blender (2-8-2), and wherein inner ring stirring guide rod upper end is arranged in inner ring platform container body
On, lower end is fixed on inner ring fermentation tank bottom, and inner ring blender can slide up and down and what is circumferentially rotated is mounted on inner ring stirring
On guide rod；The outer ring fermentor further includes multiple is arranged inside outer ring fermentor and along the distribution of outer ring fermentor circumferencial direction
Outer ring agitating device (1-6) comprising outer ring stirs guide rod (1-6-1) and outer ring blender (1-6-2), wherein outer ring stirring
Guide rod upper end is arranged on outer ring platform container body, and lower end is fixed on outer ring fermentation tank bottom, and outer ring blender can slide up and down
And what is circumferentially rotated is mounted on outer ring stirring guide rod.
8. anaerobic fermentation reaction unit as claimed in claim 7, it is characterised in that: at least 1 inner ring agitating device installation
Between the outlet of inner ring feed pipe and the shortest distance of inner ring discharging tube inlet line；At least 1 outer ring agitating device installation
Between the outlet of outer ring feed pipe and the shortest distance of outer ring discharging tube inlet line.
9. the anaerobic fermentation reaction unit as described in claim 4 to 8 any one, it is characterised in that: on the shared top plate
It is separately provided for the inner ring temperature sensor (2-9) and outer ring temperature sensor of monitoring inner ring fermentor, outer ring fermentor
(1-7)。
10. the anaerobic fermentation reaction unit as described in claim 1 to 8 any one, it is characterised in that: the inner ring bottom plate institute
It is 0.5~2 meter at a distance from where cross section with outer ring bottom plate between cross section.
11. the anaerobic fermentation reaction unit as described in claim 1 to 8 any one, it is characterised in that: the inner ring platform container
Platform cabinet connecting tube (3) is provided between body and outer ring platform cabinet, biogas caused by inner ring fermentor is flat by inner ring
Platform cabinet enters after platform cabinet connecting tube collect with biogas caused by outer ring fermentor after be discharged.
12. the anaerobic fermentation reaction unit as described in claim 4 to 8 any one, it is characterised in that: inner ring ring-shaped platform circle
Ring width is 2m~4m.
13. the anaerobic fermentation reaction unit as described in claim 3 to 8 any one, it is characterised in that: inner ring fermentor (2)
With inner ring liquidometer (2-5) and outer ring liquidometer (1-4), the inner ring feed pipe, outer ring are respectively equipped on outer ring fermentor (1)
Feed pipe, inner ring discharge nozzle are provided with flow control valve on outer ring discharge nozzle, for the mass flow in control piper；Institute
The flow control valve stated on inner ring liquidometer and inner ring feed pipe, inner ring discharge nozzle is electrically connected, and inner ring liquidometer detects inner ring
When liquid level of fermentation tank is higher than reservation threshold, information feeds back to flow control valve, and inner ring feed pipe stops charging, and inner ring discharge nozzle is opened
Begin to discharge；When inner ring liquidometer detection of liquid level is lower than reservation threshold, information feeds back to flow control valve, inner ring feed pipe start into
Material, inner ring discharge nozzle stop discharging；
Flow control valve on the outer ring liquidometer and outer ring feed pipe, outer ring discharge nozzle is electrically connected, and outer ring liquidometer is visited
When surveying outer ring liquid level of fermentation tank higher than reservation threshold, information feeds back to flow control valve, and outer ring feed pipe stops charging, and outer ring goes out
Expects pipe starts to discharge；When outer ring liquidometer detection of liquid level is lower than reservation threshold, information feeds back to flow control valve, outer ring feed pipe
Start to feed, outer ring discharge nozzle stops discharging；The inner ring liquidometer and outer ring liquidometer are provided with identical high-order and low
Position reservation threshold.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226337A (en) * | 2020-09-01 | 2021-01-15 | 北控十方(山东)环保能源集团有限公司 | Double-ring anaerobic reaction tank for treating kitchen and kitchen garbage |
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