CN206616230U - A kind of bionethanation system based on PREDICTIVE CONTROL - Google Patents
A kind of bionethanation system based on PREDICTIVE CONTROL Download PDFInfo
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- CN206616230U CN206616230U CN201720318068.3U CN201720318068U CN206616230U CN 206616230 U CN206616230 U CN 206616230U CN 201720318068 U CN201720318068 U CN 201720318068U CN 206616230 U CN206616230 U CN 206616230U
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- China
- Prior art keywords
- fermentation tank
- biogas
- sensor
- village
- power
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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
Abstract
A kind of bionethanation system based on PREDICTIVE CONTROL of the utility model, highly reliable system includes fermentation tank, village slag liquid pool, manure lagoon, material bin, air accumulator, power management module and combined heat and power unit, is characterised by：Manure lagoon is connected with fermentation tank, and fermentation tank is connected with village slag liquid pool, is provided with fermentation tank in agitating device, liquid level sensor, temperature sensor, pH sensors and concentration sensor, the air accumulator and is provided with pressure sensor and gas composition sensor.
Description
Technical field
The utility model is related to a kind of bionethanation system based on PREDICTIVE CONTROL, in particular, more particularly to a kind of structure
The bionethanation system that advantages of simple, biogas generation rate are high and biogas production is stable.
Background technology
Feces of livestock and poultry, dead livestock and poultry, the improper processing of agricultural crop straw the like waste, will trigger environmental pollution, grow disease
The problems such as bacterium, wasting of resources, the focus paid close attention to as government and resident.Region changing rejected material to useful resource profit is set up in many places now
With Demonstration Base, with regional agriculture utilization of waste as resource, new rural village biogas utilization, biogas slurry and biogas residue comprehensive utilization for core
Local area ecological circular agriculture is demonstrated, and solves region organic waste pollution problem, optimizes rural energy structure.But biogas is sent out instantly
It is electric that ferment and supply coordinate time relay connection magnetic valve, instrument frequency converter to be connected using electric contact formula gas gauge more
The feeders such as machine, can all be limited by hardware conditions such as corresponding relay, motors, it may appear that device bound adjusts pressure
The problems such as not high and simple VFC of unstable, gas-cooker service efficiency shortens motor service life, it is desirable to have even more ideal
Automatic voltage regulation feeder.
Generally, understand and be solved the above problems by PID control, PID control has simple principle, structure simplicity, reality
Now facilitate, algorithm has stronger robustness in structure, easy and effective in Industry Control.But then, control algolithm
Popularization also reflects limitation of the PID controller on Control platform, PID control is relatively specific for single-input single-output most
Small phase system, and the deficiencies such as the main zero pole point of minority of closed-loop system can only be determined so that supplied in the biogas of scale
Automatic management and the work of steady ordered can not be effectively realized in control process.
Utility model content
There is provided a kind of biogas system based on PREDICTIVE CONTROL in order to overcome the shortcoming of above-mentioned technical problem for the utility model
System.
Bionethanation system of the present utility model, including fermentation tank, village slag liquid pool, manure lagoon, material bin, air accumulator, power supply pipe
Module and combined heat and power unit are managed, manure lagoon is arranged at below earth's surface, the excrement for storing livestock and poultry, material bin is used to store agriculture
Crop material, is provided with device for transporting objects between material bin and fermentation tank, fermentation tank and village slag liquid pool are arranged on earth's surface；
It is characterized in that：The configured woven hose for having the first infusion pump of the manure lagoon is connected with fermentation tank, and fermentation tank is configured to be had
The woven hose of second infusion pump is connected with village slag liquid pool, the configured woven hose for having the 3rd infusion pump of village slag liquid pool and external world's phase
Connection；The configured biogas pipe for having flowmeter in the top of fermentation tank is connected with biogas purifier, and biogas purifier is through biogas pipe
It is connected with air accumulator, the configured biogas pipe for having controllable electromagnetic valve of air accumulator is connected with the air inlet pipe of combined heat and power unit,
The power supply output of combined heat and power unit is connected through power transmission line with the input of power transmission electric network and power management module；Power management
In power input of the output end of module through power transmission line and biogas purifier, the electrical equipment in fermentation tank and office room
Electrical equipment is connected；Agitating device, liquid level sensor, temperature sensor, pH sensors and dense are provided with the fermentation tank
Spend in sensor, the air accumulator and be provided with pressure sensor and gas composition sensor.
Bionethanation system of the present utility model, the manure lagoon is arranged under the earth's surface in its feeding place, its feeding
It is provided with place below drilled base plate, drilled base plate and is provided with splicing groove, bottom via through holes and the manure lagoon phase of splicing groove
Connection.
Bionethanation system of the present utility model, including play the microcontroller of collection, computing and control action, the level sensing
The input of device, temperature sensor, pH sensors, concentration sensor, pressure sensor, gas composition sensor with microcontroller
End is connected, and the output end of microcontroller is connected with the control end of controllable electromagnetic valve.
The beneficial effects of the utility model are：Bionethanation system of the present utility model and method, by manure lagoon, fermentation tank, village
Slag liquid pool, material bin, air accumulator, combined heat and power unit are formed, and are arranged at the manure lagoon under earth's surface and are conducive to collecting livestock and poultry
Excrement, material bin is used to store agricultural crop straw to be fermented, and excrement is evacuated in fermentation tank through the first infusion pump, and stalk is through material
Conveying device is delivered in fermentation tank；The biogas that fermentation tank is produced is passed first into be handled in biogas purifier, then is stored in
In air accumulator, so that combined heat and power unit carries out combustion power generation；The electric energy that combined heat and power unit is produced not only is available for office room, hair
Fermentation tank, the operation of biogas purifier are used, but also can be delivered in power network.Bionethanation system of the present utility model is simple in construction to be closed
Reason, has the advantages that construction cost is low, biogas output is abundant, biogas utilization rate is high, beneficial effect is notable and is suitable for the application of popularization.
Biogas stability air supply method of the present utility model, by the analysis and research of the actual contents such as biogas production technique, will ferment
The liquid level h of reactive material, temperature t, pH value p, concentration ρ are as PREDICTIVE CONTROL parameter in tank, with reference to traditional PID control, can be compared with
For the yield and composition of the biogas that calculates to a nicety out, and the methane quantity used that generates electricity is controlled, can sent out to greatest extent
Electricity, can meet the normal operation of equipment again.
Brief description of the drawings
Fig. 1 is biogas production process chart；
Fig. 2 is the structure principle chart of bionethanation system of the present utility model；
Fig. 3 is the schematic diagram of control circuit in the utility model；
Fig. 4 is the schematic diagram of biogas stability air supply method in the utility model.
In figure：1 fermentation tank, 2 village slag liquid pools, 3 manure lagoons, 4 material bins, 5 air accumulators, 6 combined heat and power units, 7 office rooms,
8 power transmission electric networks, 9 power management modules, 10 device for transporting objects, 11 drilled base plates, 12 splicing grooves, 13 through holes, 14 woven hoses, 15
First infusion pump, 16 biogas pipes, 17 biogas purifiers, 18 pressure sensors, 19 power transmission lines, 20 second infusion pumps, 21 the 3rd is defeated
Liquid pump, 22 flowmeters, 23 controllable electromagnetic valves, 24 liquid level sensors, 25 temperature sensors, 26pH sensors, 27 concentration sensors,
28 gas composition sensors.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, giving biogas production process chart, as shown in FIG., biogas is produced in the utility model
Material mainly comes to livestock and poultry cultivation and the ecological agriculture to plant, and feces of livestock and poultry, the livestock and poultry corpse produced in livestock and poultry cultivation can conduct
The material that biogas is produced, not only turns waste into wealth, and also solve problem of environmental pollution.Grain produced by ecological agriculture plantation
Stalk, the rotten leaf of vegetables, fruit tree decayed fruit can as fermentation methane material.Biogas production engineering can not only produce biology
Natural gas, but also can output organic fertilizer.
As shown in Fig. 2 giving the structure principle chart of bionethanation system of the present utility model, it is by fermentation tank 1, village slag liquid pool
2nd, manure lagoon 3, material bin 4, air accumulator 5, combined heat and power unit 6, power management module 9 are constituted, and shown manure lagoon 3 is arranged at
Under earth's surface, the excrement for collecting and storing livestock and poultry；The configured woven hose 14 for having the first infusion pump 15 of manure lagoon 3 and fermentation
Tank 1 is connected, so as to which the excrement in manure lagoon 3 is evacuated in fermentation tank 1 under the driving of the first infusion pump 15.Material bin 4 is set
It is placed on earth's surface, stalk for storing crops etc. is provided with device for transporting objects 10 between material bin 4 and fermentation tank 1,
So as to by the straw transportation in material bin 4 into fermentation tank 1.For the ease of the collection of feces of livestock and poultry, in the place for raising livestock and poultry
Drilled base plate 11 is equipped with, the lower section of drilled base plate 11 is splicing groove 12, and the via through holes 13 of splicing groove 12 are connected with manure lagoon, with
Just the excrement of livestock and poultry is directly guided in manure lagoon 3.
Shown fermentation tank 1 and village slag liquid pool 2 may be contained within earth's surface, configured second infusion pump 20 of fermentation tank 1 it is defeated
Liquid pipe is connected with village slag liquid pool 2, so as to which the biogas residue after material fermentation, biogas slurry are evacuated in village slag liquid pool 2.Meanwhile, collect slag
The woven hose of configured 3rd infusion pump 21 of liquid pool 2 is communicated with the external world, so as to which biogas residue, biogas slurry are extracted out.
The biogas pipe 16 of the configured flowmeter 22 in top of shown fermentation tank 1 is communicated with biogas purifier 17, to produce
Raw biogas is delivered to biogas purifier 17 and carries out purification process.Biogas purifier 17 is communicated with air accumulator 5 by the road, to incite somebody to action
Biogas after purifying, which is delivered in air accumulator, to be preserved.Gas Pipe of the air accumulator 5 through biogas pipe 16 Yu combined heat and power unit 6
Communicate, so that combined heat and power unit 6 carries out combustion power generation.The electric energy part that combined heat and power unit 6 is produced is delivered to transmission of electricity electricity
On net 8, after realizing that marsh gas power generation, another part are converted through power management module 9, input to biogas purifier 17, the and of fermentation tank 1
Office room 7, to maintain the operation of whole bionethanation system.
Liquid level sensor 24, temperature sensor 25, pH sensors 26, concentration sensor are additionally provided with shown fermentation tank 1
27, to realize the liquid level h of reactive material in fermentation tank 1, temperature t, pH value p, concentration ρ measurement.Pressure is additionally provided with air accumulator 5
Force snesor 18 and gas composition sensor 28, gas composition sensor 28 can be to CO, H in biogas2S、CH4Content carry out
Detection.Controllable electromagnetic valve 23 is provided with shown air accumulator 5 to the biogas pipe 16 between combined heat and power unit 6, by controllable
The aperture of magnetic valve 23 is controlled, and the generated output of combined heat and power unit 6 is can control, to control the utilization of biogas.
As shown in figure 3, giving the schematic diagram that circuit is controlled in utility model, shown microcontroller 29 is adopted with signal
The effect of collection, data operation and control output, liquid level sensor 24, temperature sensor 25, pH sensors 26, concentration sensor
27th, pressure sensor 1）, input of the gas composition sensor 28 with microcontroller 29 be connected, to realize sensing data
Measurement, the output end of microcontroller 29 is connected with the control end of controllable electromagnetic valve 23, so that microcontroller 29 is according to being examined
The data of survey are controlled to the aperture of controllable electromagnetic valve 23, and then control generated output.
As shown in figure 4, the schematic diagram of biogas stability air supply method in the utility model is given, its stability supply side
The principle of method is by equipment state situation, user's laws of use, load data and sensor detected value, to realize biogas pressure
Prediction, generator power prediction and biogas concentration prediction, and then the biogas automatic stabilisation controller of fusion forecasting control is formed, together
When pass through set up object function and dynamic constrained come Optimized model, feed back to the biogas automatic stabilisation control of fusion forecasting control
Device processed, to realize the stability contorting of biogas.
Abandon equipment state situation, user's laws of use, load data not considering, the stability supply of this bionethanation system
Method is realized by following steps：
A) gathers fermentation parameter, with daily for period Tday, in period TdayPeriodically reacted in collection fermentation tank
Liquid level h, temperature t, pH value p, the concentration ρ of material, form fermentation parameter ci(h, t, p, ρ), wherein, i is the hair that is gathered daily
The number of times of ferment parameter, 12≤i≤48；
B) gathers biogas parameter, while fermentation parameter is gathered, also gathers the gas on the biogas pipe of fermentation tank output end
Gas componant CO, H in gas pressure f and air accumulator in body flow L, air accumulator2S、CH4, form biogas parameter ki（L,
f,CO,H2S,CH4）；
C) training samples, the fermentation parameter and biogas parameter of collection N days, using it as sample, with fermentation parameter h, t, p, ρ
To input, with biogas parameter L, f, CO, H2S、CH4It is trained for output, until gas flow L=L1*h+ L2*t+ L3*p+
L4* ρ, gas pressure f=f1*h+ f2*t+ f3*p+ f4* ρ, gas componant CO=CO1*h+ CO2*t+ CO3*p+ CO4* ρ,
Gas componant H2S = H2S1*h+ H2S2*t+ H2S3*p+ H2S4* ρ, gas componant CH4= CH41*h+ CH42*t+ CH43*p
+ CH4Variables L 1 in 4* ρ, L2, L3, L4, f1, f2, f3, f4, CO1, CO2, CO3, CO4, H2S1、H2S2、H2S3、H2S4、
CH41、CH42、CH43、CH44 are not changing or are changing in convergence position；
D) control of stabilizers supply, gathers current fermentation parameter cpresent(h, t, p, ρ), is trained using in step c)
The calculation formula L gone out=L1*h+ L2*t+ L3*p+ L4* ρ, gas pressure f=f1*h+ f2*t+ f3*p+ f4* ρ, gas into
Divide CO=CO1*h+ CO2*t+ CO3*p+ CO4* ρ, gas componant H2S = H2S1*h+ H2S2*t+ H2S3*p+ H2S4* ρ, gas
Body composition CH4= CH41*h+ CH42*t+ CH43*p+ CH44* ρ calculate biogas parameter kpresent（L,f,CO,H2S,CH4）, root
The aperture of controllable electromagnetic valve is adjusted in real time using PID control according to current desired generated energy, to be controlled to generated energy, it is ensured that natural pond
The sustainable operation of gas system.
In figure：1 fermentation tank, 2 village slag liquid pools, 3 manure lagoons, 4 material bins, 5 air accumulators, 6 combined heat and power units, 7 office rooms,
8 power transmission electric networks, 9 power management modules, 10 device for transporting objects, 11 drilled base plates, 12 splicing grooves, 13 through holes, 14 woven hoses, 15
First infusion pump, 16 biogas pipes, 17 biogas purifiers, 18 pressure sensors, 19 power transmission lines, 20 second infusion pumps, 21 the 3rd is defeated
Liquid pump, 22 flowmeters, 23 controllable electromagnetic valves, 24 liquid level sensors, 25 temperature sensors, 26pH sensors, 27 concentration sensors,
28 gas composition sensors, 29 microcontrollers.
Claims (3)
1. a kind of bionethanation system based on PREDICTIVE CONTROL, including fermentation tank（1）, village slag liquid pool（2）, manure lagoon（3）, material bin
（4）, air accumulator（5）, power management module（9）With combined heat and power unit（6）, manure lagoon is arranged at below earth's surface, for storing
The excrement of livestock and poultry, material bin is used to store agricultural crop straw, and device for transporting objects is provided between material bin and fermentation tank（10）,
Fermentation tank and village slag liquid pool are arranged on earth's surface；It is characterized in that：The manure lagoon is configured the first infusion pump（15）'s
Woven hose（14）It is connected with fermentation tank, fermentation tank is configured the second infusion pump（20）Woven hose with village slag liquid pool be connected
Logical, slag liquid pool is configured in village the 3rd infusion pump（21）Woven hose be connected with the external world；The top of fermentation tank is configured stream
Gauge（22）Biogas pipe（16）With biogas purifier（17）It is connected, biogas purifier is connected through biogas pipe with air accumulator,
Air accumulator is configured controllable electromagnetic valve（23）Biogas pipe be connected with the air inlet pipe of combined heat and power unit, combined heat and power unit
Power supply export through power transmission line and power transmission electric network（8）It is connected with the input of power management module；Power management module it is defeated
Go out end through power transmission line（19）Electrical equipment in power input, fermentation tank and office room with biogas purifier（7）In
Electrical equipment is connected；Agitating device, liquid level sensor are provided with the fermentation tank（24）, temperature sensor（25）, pH pass
Sensor（26）And concentration sensor（27）, the air accumulator（5）In be provided with pressure sensor（18）And gas composition sensor
（28）.
2. bionethanation system according to claim 1, it is characterised in that：The manure lagoon（3）It is arranged at its feeding place
Earth's surface under, its feeding is provided with drilled base plate in place（11）, splicing groove is provided with below drilled base plate（12）, connect
The bottom via through holes of hopper（13）It is connected with manure lagoon.
3. bionethanation system according to claim 1 or 2, it is characterised in that：Including playing the micro- of collection, computing and control action
Controller（29）, the liquid level sensor（24）, temperature sensor（25）, pH sensors（26）, concentration sensor（27）, pressure
Sensor（18）, gas composition sensor（28）Be connected with the input of microcontroller, the output end of microcontroller with can
Control magnetic valve（23）Control end be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720318068.3U CN206616230U (en) | 2017-03-29 | 2017-03-29 | A kind of bionethanation system based on PREDICTIVE CONTROL |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720318068.3U CN206616230U (en) | 2017-03-29 | 2017-03-29 | A kind of bionethanation system based on PREDICTIVE CONTROL |
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| Publication Number | Publication Date |
|---|---|
| CN206616230U true CN206616230U (en) | 2017-11-07 |
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ID=60234656
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| CN201720318068.3U Expired - Fee Related CN206616230U (en) | 2017-03-29 | 2017-03-29 | A kind of bionethanation system based on PREDICTIVE CONTROL |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089604A (en) * | 2017-12-25 | 2018-05-29 | 重庆多邦科技股份有限公司 | A kind of septic tank method for safety monitoring, system and equipment |
-
2017
- 2017-03-29 CN CN201720318068.3U patent/CN206616230U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089604A (en) * | 2017-12-25 | 2018-05-29 | 重庆多邦科技股份有限公司 | A kind of septic tank method for safety monitoring, system and equipment |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171107 |