CN105843287A - Microwave pyrolysis biomass real-time panoramic temperature monitoring, regulation and control system and method - Google Patents
Microwave pyrolysis biomass real-time panoramic temperature monitoring, regulation and control system and method Download PDFInfo
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- CN105843287A CN105843287A CN201610165220.9A CN201610165220A CN105843287A CN 105843287 A CN105843287 A CN 105843287A CN 201610165220 A CN201610165220 A CN 201610165220A CN 105843287 A CN105843287 A CN 105843287A
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- microwave
- temperature
- heating
- biomass
- pyrolysis
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- 239000002028 Biomass Substances 0.000 title claims abstract description 104
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 99
- 238000012544 monitoring process Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims description 147
- 239000007789 gas Substances 0.000 claims description 51
- 239000012159 carrier gas Substances 0.000 claims description 36
- 238000012546 transfer Methods 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 238000001931 thermography Methods 0.000 claims description 13
- 239000003610 charcoal Substances 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 235000013312 flour Nutrition 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 235000007164 Oryza sativa Nutrition 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 235000009566 rice Nutrition 0.000 claims description 5
- 239000010902 straw Substances 0.000 claims description 5
- 239000003077 lignite Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 3
- 238000009529 body temperature measurement Methods 0.000 abstract 6
- 230000005284 excitation Effects 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 19
- 230000001276 controlling effect Effects 0.000 description 14
- 238000012360 testing method Methods 0.000 description 5
- 241000209094 Oryza Species 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000571 coke Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 108010004350 tyrosine-rich amelogenin polypeptide Proteins 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003331 infrared imaging Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004861 thermometry Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
- G05D23/303—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature using a sensing element having a resistance varying with temperature, e.g. thermistor
- G05D23/306—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature using a sensing element having a resistance varying with temperature, e.g. thermistor using semiconductor devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- 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
- Y02E50/10—Biofuels, e.g. bio-diesel
Abstract
The invention provides a microwave pyrolysis biomass real-time panoramic temperature monitoring, regulation and control system and method. The system includes a microwave pyrolysis device, a microwave attenuation channel and a temperature measurement and temperature control device; a pyrolysis region is arranged in the microwave pyrolysis device; one end of the microwave attenuation channel is located in the microwave pyrolysis device, and the other end of the microwave attenuation channel extends out from one side of the microwave pyrolysis device; the temperature measurement and temperature control device includes a temperature measurement instrument and a temperature control instrument; the temperature measurement instrument is located near one end of the microwave attenuation channel which is far from the microwave pyrolysis device; the temperature control instrument is communicated with the temperature measurement instrument and the microwave pyrolysis device; and the center of the temperature measurement instrument, the center of the microwave attenuation channel and the center of the pyrolysis region are located on the same level line. The system of the invention has the advantages of reasonable design, high microwave utilization rate, convenient operation, high safety and high reliability. According to the system, microwave excitation power can be timely adjusted, so that the pyrolysis region is made to be located in a more stable pyrolysis temperature interval, and therefore, local hot spots and temperature runaway can be prevented, and product distribution can be effectively optimized.
Description
Technical field
The invention belongs to thermometric and temperature control technology field, particularly relate to a kind of microwave-heating biomass real time panoramic temperature monitoring and adjust
Ore-controlling Role and method.
Background technology
Microwave heating belongs to internal mode of heating, it is desirable in material, at least a kind of component can be the most micro-with microwave generation close coupling
Ripple absorber, to obtain the rate of heat addition more high than conventional heating.Compared with conventional heating, it has quickly heating and choosing
The feature of selecting property heating so that electromagnetism wave energy directly acts on material molecule, is converted to heat energy, it is achieved material inside and outside heats simultaneously,
And material is internal because heat radiation is limited to, outside can because with surrounding objects temperature difference and lose heat so that internal temperature height
In outside, thermograde occur, inside can i.e. reach temperature required the soonest within several seconds.But it is because different materials to micro-
The dielectric loss of ripple and loss tangent are all different, and the charcoal produced such as carbon and pyrolytic process is good microwave absorption,
Can be heated by selectivity, and carbon-coating surface can generate stability microwave plasma slab under microwave irradiation, forms hot localised points；
And pure biomass absorb, convert the poor ability of microwave.So microwave heating can reach the effect of selectivity heating to mixed material
Really so that the bigger temperature difference occur in container and heating material inside, temperature runaway and local hot spot phenomenon then occur.
The capture of microwave current temperature of reactor and control system substantially use local infrared imaging or pinpoint special thermocouple thermometry,
Sample pyrolysis temperature outside for test zone is difficult to catch, thus be difficult to grasp the Temperature Distribution of material universe in pyrolytic process and
Pyrolysis situation.This makes easily occur hot localised points and temperature runaway phenomenon in microwave pyrolytic process, causes the unreasonable profit of microwave energy
With and product deformity distribution.
Zhu Hua et al., in the case of researching microwave drying Rhizoma Solani tuber osi, uses the miniature infrared thermoviewer of teflon-coated, probes into
Inside microwave cavity, successfully obtain the Temperature Distribution in diameter 1cm Rhizoma Solani tuber osi ball microwave drying process.But the method records
Sample temperature range and volume size are less, are not suitable for promoting.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of microwave-heating biomass real time panoramic temperature
Degree monitoring regulator control system and method, be used for solving use local infrared imaging in prior art or pinpoint special thermocouple thermometry pair
Microwave reactor exist when carrying out temperature capture or control for test zone outside sample pyrolysis temperature be difficult to catch, thus difficult
To grasp Temperature Distribution and the pyrolysis situation of material universe in pyrolytic process so that microwave pyrolytic process easily occurs hot localised points
With temperature runaway phenomenon, cause irrational utilization and the problem of product deformity distribution of microwave energy.
For achieving the above object and other relevant purposes, the present invention provides a kind of microwave-heating biomass real time panoramic temperature monitoring to adjust
Ore-controlling Role, described microwave-heating biomass real time panoramic temperature monitoring regulator control system includes: microwave-heating device, microwave attenuation are logical
Road, measuring and controlling temp device；It is provided with pyrolysis zone inside microwave-heating device, is suitable to the pyrolysis of biomass samples；Described microwave declines
Subtracting passage end and be positioned at described microwave-heating device, the other end extends to described microwave-heating device from described microwave-heating device
The outside of side, is suitable to suppress the effusion of microwave when described microwave-heating device works；Described measuring and controlling temp device includes thermometric
Instrument and temperature control instrument；Described temperature measuring device is positioned at the described microwave attenuation passage adjacent one end away from described microwave-heating device,
Be suitable to measure the temperature of described pyrolysis zone；Described temperature control instrument is connected with described temperature measuring device and described microwave-heating device,
The temperature of described pyrolysis zone being suitable to measure according to described temperature measuring device adjusts the microwave-excitation merit of described microwave-heating device in time
Rate and pyrolysis temperature；The center of described temperature measuring device, the center of described microwave attenuation passage and described pyrolysis zone are centrally located at
On same level line.
As a kind of preferred version of the microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention, described microwave thermal
Solution device includes: microwave generator and reactor；Described microwave generator includes power selection unit, described power selection unit
It is connected with described temperature control instrument, is suitable to regulate the exciting power of described microwave generator under the control of described temperature control instrument；Institute
State reactor and be positioned at described microwave generator, be provided with territory, sample deposition in described reactor, be suitable to hold biomass samples；
Territory, described sample deposition is positioned at described pyrolysis zone, and the center in territory, described sample deposition and described microwave attenuation passage
Center and described pyrolysis zone are centrally located on same level line.
As a kind of preferred version of the microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention, described temperature measurer
Device is infrared thermography, and the focus of described infrared thermography is logical with the center in territory, described sample deposition and described microwave attenuation
Road is centrally located on same level line.
As a kind of preferred version of the microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention, described infra-red heat
The temperature-measuring range of imager is-20 DEG C～1000 DEG C；The measurement distance of described infrared thermography is 0.5m～1.0m.
As a kind of preferred version of the microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention, described microwave declines
Subtract a length of 0.5m～1.0m of passage；The radial width of described microwave attenuation passage is less than the 2/7 of microwave wavelength.
As a kind of preferred version of the microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention, described microwave thermal
Solve biomass real time panoramic temperature monitoring regulator control system also to include: carrier gas device and volatile products collection device；Described carrier gas fills
The outfan put is positioned at described microwave-heating device, is suitable in described microwave-heating device pyrolytic process to described microwave-heating
Input carrier gas in device, to take away the volatile products produced in pyrolytic process to described volatility from described microwave-heating device
Product collection device；The input of described volatile products collection device is positioned at described microwave-heating device, is suitable to collection described
The volatile products produced in microwave-heating device pyrolytic process.
As a kind of preferred version of the microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention, described carrier gas fills
Put and include: carrier gas bottle, the first transfer pipeline, gas trap and gas flow controller；Described first transfer pipeline one end is with described
Carrier gas bottle is connected, and the other end is positioned at described microwave-heating device, is suitable to the carrier gas of storage in described carrier gas bottle is delivered to institute
State in microwave-heating device；The described gas trap described first conveying pipe between described carrier gas bottle and described microwave-heating device
Lu Shang, is suitable to control conducting and the closedown of described first transfer pipeline；Described gas flow controller is positioned at described carrier gas bottle and institute
State on described first transfer pipeline between microwave-heating device, be suitable to regulate the carrier gas flux in described first transfer pipeline.
As a kind of preferred version of the microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention, described volatility
Product collection device includes: condenser, gas washing removing impurities device, gas collector and the second transfer pipeline；Described condenser, described
Gas washing removing impurities device and described gas collector are connected via described second transfer pipeline successively, and described condenser is via described
Two transfer pipelines are connected inside described microwave-heating device.
The present invention also provides for a kind of microwave-heating biomass real time panoramic temperature monitoring regulation and control method, and described monitoring regulation and control method includes
Following steps:
1) the microwave-heating biomass real time panoramic temperature monitoring regulator control system as described in above-mentioned either a program is set up；
2) prepare biomass samples, described biomass samples is placed in described microwave-heating device, and described biomass samples
Center is centrally located on same level line with center and the described pyrolysis zone of described microwave attenuation passage；
3) described measuring and controlling temp device and described microwave-heating device are started successively；Described microwave-heating device is heated to described biology
Pyrolysis temperature needed for quality sample, and keep certain pyrolysis time to make described biomass samples be pyrolyzed completely；Described measuring and controlling temp
Device monitors the Temperature Distribution of described pyrolysis zone universe in real time, and adjusts in time according to described pyrolysis zone universe profiling temperatures
Save described pyrolysis temperature.
Microwave-heating biomass real time panoramic temperature monitoring as the present invention regulates and controls a kind of preferred version of method, described step 1)
The most also include the step of the magnetic distribution of the built-up pattern of simulated microwave pyrolysis installation and microwave attenuation passage, follow-up to guarantee
Described in the system set up, microwave attenuation passage can effectively stop microwave to escape.
Microwave-heating biomass real time panoramic temperature monitoring as the present invention regulates and controls a kind of preferred version of method, uses
COMSOL multiple physical field finite element emulation software simulates described microwave-heating device and the built-up pattern of described microwave attenuation passage
Magnetic distribution.
Microwave-heating biomass real time panoramic temperature monitoring as the present invention regulates and controls a kind of preferred version of method, described step 2)
In, preparation biomass samples comprises the following steps:
21) provide biomass material, be dried after described biomass material is pulverized；
22) it is mixed to get described biomass samples with charcoal according to required ratio by pulverizing dried described biomass material.
Microwave-heating biomass real time panoramic temperature monitoring as the present invention regulates and controls a kind of preferred version of method, described biomass
Raw material is one or more combinations in rice straw, wood flour or brown coal；Described charcoal is activated carbon.
Microwave-heating biomass real time panoramic temperature monitoring as the present invention regulates and controls a kind of preferred version of method, described pyrolysis temperature
Degree is 200 DEG C～500 DEG C, and described pyrolysis time is 15min～40min.
As it has been described above, the present invention provides a kind of microwave-heating biomass real time panoramic temperature monitoring regulator control system and method, have with
Lower beneficial effect:
1) the microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention utilizes attenuation path, it is suppressed that microwave escapes,
Provide good window for the Temperature Distribution in real-time monitored microwave-heating biomass process simultaneously；
2) compared with conventional optical fiber, thermocouple and infrared fixed point thermometric, microwave-heating biomass real time panoramic temperature of the present invention is supervised
The temp measuring method surveying regulator control system employing is possible not only to measure the real time temperature in microwave-heating biomass process, and can obtain
Global temperature the analysis of pyrolysis zone obtain maximum temperature；
3) the microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention is by controlling system by temp measuring system and microwave
System grafting together, contributes to realizing precisely switching microwave power, it is achieved the accurate regulation and control of the temperature in microwave pyrolytic process, promotees
Enter being uniformly distributed of pyrolysis zone temperature.
4) present system is reasonable in design, and microwave utilization rate is high, easy to operate, safe and reliable, can regulate microwave-excitation in time
Power, makes pyrolysis zone be in more stable pyrolysis temperature interval, prevents the phenomenon of hot localised points and temperature runaway from occurring, the most excellent
Change products distribution.
Accompanying drawing explanation
Fig. 1 to Fig. 3 is shown as in the embodiment of the present invention one the microwave-heating biomass real time panoramic temperature in the different examples provided
The block diagram of monitoring regulator control system.
Fig. 4 is shown as in the embodiment of the present invention two flow process of the microwave-heating biomass real time panoramic temperature monitoring regulation and control method provided
Figure.
Element numbers explanation
1 microwave-heating device
11 microwave generators
111 power selection unit
12 reactors
2 microwave attenuation passages
3 measuring and controlling temp devices
31 temperature measuring devices
32 temperature control instruments
4 carrier gas devices
41 carrier gas bottles
42 first transfer pipelines
43 gas traps
44 gas flow controllers
5 volatile products collection devices
51 condensers
511 tar wells
52 gas washing removing impurities devices
53 gas collectors
54 second transfer pipelines
6 biomass samples
7 microwaves
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art can be by disclosed by this specification
Content understand other advantages and effect of the present invention easily.The present invention can also be added by the most different detailed description of the invention
To implement or application, the every details in this specification can also be based on different viewpoints and application, in the essence without departing from the present invention
Various modification or change is carried out under god.
Refer to Fig. 1 to Fig. 4.It should be noted that the diagram provided in the present embodiment illustrates the present invention the most in a schematic way
Basic conception, though component count when only display with relevant assembly in the present invention rather than is implemented according to reality in Tu Shi, shape
And size drafting, during its actual enforcement, the kenel of each assembly, quantity and ratio can be a kind of random change, and its assembly layout
Kenel is likely to increasingly complex.
Embodiment one
Referring to Fig. 1, the present embodiment provides a kind of microwave-heating biomass real time panoramic temperature monitoring regulator control system, described microwave
Pyrolysis biomass real time panoramic temperature monitoring regulator control system includes: microwave-heating device 1, microwave attenuation passage 2, measuring and controlling temp fill
Put 3；Microwave-heating device 2 is internal is provided with pyrolysis zone, is suitable to the pyrolysis of biomass samples；Described microwave attenuation passage 2 one
End is positioned at described microwave-heating device 1, and the other end extends to described microwave-heating device 1 one from described microwave-heating device 1
The outside of side, is suitable to suppress the effusion of microwave 7 when described microwave-heating device 1 works；Described measuring and controlling temp device 3 includes
Temperature measuring device 31 and temperature control instrument 32；Described temperature measuring device 31 is positioned at described microwave attenuation passage 2 and fills away from described microwave-heating
Put the adjacent one end of 1, be suitable to measure the temperature of described pyrolysis zone；Described temperature control instrument 32 and described temperature measuring device 31 and institute
Stating microwave-heating device 1 to be connected, the temperature being suitable to the described pyrolysis zone according to the measurement of described temperature measuring device 31 adjusts institute in time
State microwave-excitation power and the pyrolysis temperature of microwave-heating device 1；The center of described temperature measuring device 31, described microwave attenuation passage
Center and the described pyrolysis zone of 2 are centrally located on same level line.
Referring to Fig. 2, described microwave-heating device 1 includes: microwave generator 11 and reactor 12；Described microwave generator
11 include that power selection unit 111, described power selection unit 111 are connected with described temperature control instrument 32, are suitable in described control
The exciting power controlling the described microwave generator 11 of lower regulation of temperature instrument 32；Described reactor 12 is positioned at described microwave generator
In 11, in described reactor 12, it is provided with territory, sample deposition, is suitable to hold biomass samples 6；Territory, described sample deposition is positioned at
In described pyrolysis zone, and the center of the center in territory, described sample deposition and described microwave attenuation passage 2 and described pyrolysis zone
It is centrally located on same level line.
As example, described microwave attenuation passage 2 can be but be not limited only to the hollow tubular structure that two ends are through；Described microwave
The material of attenuation path 2 can be set according to actual needs, it is preferable that in the present embodiment, described microwave attenuation passage 2
Material can be but be not limited only to PC plastics.
As example, the length of described microwave attenuation passage 2 can be set according to actual needs, it is preferable that the present embodiment
In, a length of 0.5m～1.0m of described microwave attenuation passage 2；The radial width of described microwave attenuation passage 2 can be according to reality
Border needs selected, but must assure that the microwave that described microwave generator 11 produces is tried one's best the most excessive, it is preferable that in the present embodiment,
The radial width of described microwave attenuation passage 2 is less than the 2/7 of the wavelength of microwave 7.
As example, described temperature measuring device 31 can be but be not limited only to infrared thermography, the focus of described infrared thermography
It is centrally located on same level line with the center in territory, described sample deposition and described microwave attenuation passage 2.
As example, the temperature-measuring range of described infrared thermography is-20 DEG C～1000 DEG C；The measurement of described infrared thermography away from
From for 0.5m～1.0m.
As example, described reactor 12 can be but be not limited only to quartz reaction bottle.
As example, described temperature control instrument can be but be not limited only to computer.
Referring to Fig. 3, described microwave-heating biomass real time panoramic temperature monitoring regulator control system also includes: carrier gas device 4 and waving
The property sent out product collection device 5；The outfan of described carrier gas device 4 is positioned at described microwave-heating device 1, is suitable to described micro-
Ripple pyrolysis installation 1 pyrolytic process inputs in described microwave-heating device 1 carrier gas, with the volatility that will produce in pyrolytic process
Product takes away to described volatile products collection device 5 from described microwave-heating device 1；Concrete, described carrier gas device 4
Outfan is inserted into the inside of described reactor 12 from the top of described reactor 12；Described volatile products collection device 5
Input is positioned at described microwave-heating device 1, is suitable to collect the volatility produced in described microwave-heating device 1 pyrolytic process
Product；Concrete, the input of described volatile products collection device 5 is inserted into described reactor bottom described reactor 12
The inside of 12.
As example, described carrier gas device 4 includes: carrier gas bottle the 41, first transfer pipeline 42, gas trap 43 and gas flow
Controller 44；Described first transfer pipeline 42 one end is connected with described carrier gas bottle 41, and the other end is positioned at described microwave-heating dress
In putting 1, be suitable to be delivered in described microwave-heating device 1 carrier gas of storage in described carrier gas bottle 41；Concrete, described the
One transfer pipeline 42 other end is inserted into the inside of described reactor 12 from the top of described reactor 12；Described gas trap 43
On described first transfer pipeline 42 between described carrier gas bottle 41 and described microwave-heating device 1, be suitable to control described
The conducting of one transfer pipeline 42 and closedown；Described gas flow controller 44 is positioned at described carrier gas bottle 41 and described microwave-heating dress
Put on described first transfer pipeline 42 between 1, be suitable to regulate the carrier gas flux in described first transfer pipeline 42.
As example, described volatile products collection device 5 includes: condenser 51, gas washing removing impurities device 52, gas collector
53 and second transfer pipeline 54；Described condenser 51, described gas washing removing impurities device 52 and described gas collector 53 successively via
Described second transfer pipeline 54 is connected, and described condenser 51 fills with described microwave-heating via described second transfer pipeline 54
Put 1 internal to be connected, concrete, described condenser 51 via described second transfer pipeline 54 through the bottom of described reactor 12
It is inserted into the inside of described reactor 12.
As example, in described condenser 51, it is provided with the tar well 511 for collecting tar.
The operation principle of the described microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention is: first, will be by giving birth to
The biomass samples 6 obtained after raw material of substance and charcoal mixing loads in described reactor 12, and is sent by described reactor 12
Enter in described microwave generator 11；Secondly, described infrared thermography and computer are started；Then described microwave generator is started
11, use microwave 7 that described biomass samples 6 is heated to required pyrolysis temperature, described infrared thermography is at pyrolytic process
The temperature of the whole pyrolysis zone of middle real time record, and by the data transmission of record to described computer, described computer for analysis pyrolysis zone
Interior real-time maximum temperature, and the exciting power of power selection unit 111, and then the heat that regulation and control are actual is controlled according to analysis result
Solve temperature, the utilization ratio of microwave can be effectively improved, optimize pyrolysis temperature and thermal decomposition product distribution；Meanwhile, in the process of pyrolysis
In, open described gas trap 43, pyrolysis charcoal is stayed in described reactor 12 as microwave absorption auxiliary agent, and carrier gas is from described
The top of reactor 12 enters, and through sample pyrolysis zone, flows out from the bottom of described reactor 12, can be by pyrolytic process
The moisture of middle generation, tar and pyrolysis gas are brought into described volatile products collection device 5, and, gas mixture passes through
During described condenser 51, oil gas realizes separating, and tar cooling is collected by described tar well 511, and the gas of separation is via institute
Enter in described gas collector 53 after stating gas washing removing impurities device 52.
Embodiment two
Referring to Fig. 4, the present invention also provides for a kind of microwave-heating biomass real time panoramic temperature monitoring regulation and control method, described monitoring
Regulation and control method comprises the following steps:
1) the microwave-heating biomass real time panoramic temperature monitoring regulator control system as described in embodiment one, described microwave-heating are set up
The concrete structure of biomass real time panoramic temperature monitoring regulator control system refers to embodiment one, is not repeated herein；
2) prepare biomass samples, described biomass samples is placed in described microwave-heating device, and described biomass samples
Center is centrally located on same level line with center and the described pyrolysis zone of described microwave attenuation passage；
3) described measuring and controlling temp device and described microwave-heating device are started successively；Described microwave-heating device is heated to described biology
Pyrolysis temperature needed for quality sample, and keep certain pyrolysis time to make described biomass samples be pyrolyzed completely；Described measuring and controlling temp
Device monitors the Temperature Distribution of described pyrolysis zone universe in real time, and adjusts in time according to described pyrolysis zone universe profiling temperatures
Save described pyrolysis temperature.
As example, described step 1) before also include the electricity of built-up pattern of simulated microwave pyrolysis installation and microwave attenuation passage
The step of Distribution of Magnetic Field, to guarantee that described in the system of follow-up establishment, microwave attenuation passage can effectively stop microwave to escape.
As example, COMSOL multiple physical field finite element emulation software COMSOL Multiphysics 5.0 is used to simulate described
The magnetic distribution of the built-up pattern of microwave-heating device and described microwave attenuation passage.
As example, described step 2) in, preparation biomass samples comprises the following steps:
21) providing biomass material, the weight water content of described biomass material is 8%～15%, by described biomass material powder
Dry, pulverize dried in the broken gas being placed on 50 DEG C～60 DEG C, the particle diameter of described biomass material is 40 mesh, and weight is aqueous
Amount is 0.8%～2.0%；
22) it is mixed to get described biomass with charcoal according to the mass ratio of 8:1 by pulverizing dried described biomass material
Sample.
As example, described biomass material is one or more combinations in rice straw, wood flour or brown coal；Described charcoal is
Activated carbon.
As example, described step 3) in, described pyrolysis temperature is 200 DEG C～500 DEG C, and described pyrolysis time is 15min～40min.
With concrete example, described microwave-heating biomass real time panoramic temperature monitoring regulation and control method is described in detail below.
Example 1
Rice straw that water content is 11% is pulverized be 40 mesh powder after be delivered to blast drier, be dried to moisture and be
1.2%, with microwave as thermal source, rice straw and activated carbon are pressed 8:1 mass ratio premix after as be pyrolyzed sample, at N2Under atmosphere
Being heated to 500 DEG C, after keeping 15min, cooling obtains charcoal, and gas mixture is condensed into gas and tar, examines by gas chromatogram
Survey gas form, test result be semi-coke yield be 17.09%, tar yield is 48.05%；The component of the gas collected is: H2:
53..46%, CO:41.68%, CH4: 0.83%, CO2: 4.03%.And with utilizing infrared thermoviewer collection while pyrolysis
Pyrolysis zone real time temperature sidelights on, feed back to computer terminal, regulate microwave device exciting power.
Example 2
Wood flour that water content is 8% is pulverized be 40 mesh powder after be delivered to blast drier, be dried to moisture be 0.8%,
With microwave as thermal source, wood flour and activated carbon are pressed 8:1 mass ratio premix after as be pyrolyzed sample, at N2470 DEG C it are heated under atmosphere,
After keeping 12min, cooling obtains charcoal, and gas mixture is condensed into gas and tar, forms with gas chromatographic detection gas, surveys
Test result be semi-coke yield be 22.98%, tar yield is 39.26%；The component of the gas collected is: H2: 43.58%, CO:
37.62%, CH4: 7.02%, CO2: 11.78%.And it is real-time with utilizing infrared thermoviewer to gather pyrolysis zone while pyrolysis
Temperature sidelights on, feed back to computer terminal, regulate microwave device exciting power.
Example 3
Brown coal that water content is 14% are pulverized be 40 mesh powder after be delivered to blast drier, be dried to moisture be 2.0%,
With microwave as thermal source, wood flour and activated carbon are pressed 8:1 mass ratio premix after as be pyrolyzed sample, at N2260 DEG C it are heated under atmosphere,
After keeping 30min, cooling obtains charcoal, and gas mixture is condensed into gas and tar, forms with gas chromatographic detection gas,
Test result be semi-coke yield be 76.5%, tar yield is 10.6%；The component of the gas collected is: H2: 34.23%, CO:
31.27%, CH4: 6.45%, CO2: 28.05%.And it is real-time with utilizing infrared thermoviewer to gather pyrolysis zone while pyrolysis
Temperature sidelights on, feed back to computer terminal, regulate microwave device exciting power.
In sum, the present invention provides a kind of microwave-heating biomass real time panoramic temperature monitoring regulator control system and method, described micro-
Ripple pyrolysis biomass real time panoramic temperature monitoring regulator control system includes: microwave-heating device, microwave attenuation passage, measuring and controlling temp fill
Put；It is provided with pyrolysis zone inside microwave-heating device, is suitable to the pyrolysis of biomass samples；Described microwave attenuation passage end is positioned at
In described microwave-heating device, the other end extends to the outside of described microwave-heating device side from described microwave-heating device, suitable
In the effusion suppressing microwave when described microwave-heating device works；Described measuring and controlling temp device includes temperature measuring device and temperature control instrument；
Described temperature measuring device is positioned at the described microwave attenuation passage adjacent one end away from described microwave-heating device, is suitable to measure described pyrolysis
The temperature in region；Described temperature control instrument is connected with described temperature measuring device and described microwave-heating device, is suitable to according to described thermometric
The temperature of the described pyrolysis zone of apparatus measures adjusts microwave-excitation power and the pyrolysis temperature of described microwave-heating device in time；Institute
State the center of temperature measuring device, the center of described microwave attenuation passage and described pyrolysis zone to be centrally located on same level line.This
The microwave-heating biomass real time panoramic temperature monitoring regulator control system of invention utilizes attenuation path, it is suppressed that microwave escapes, and is simultaneously
Temperature Distribution in real-time monitored microwave-heating biomass process provides good window；With conventional optical fiber, thermocouple and red
Outer fixed point thermometric is compared, and the temp measuring method that microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention uses not only may be used
To measure the real time temperature in microwave-heating biomass process, and the global temperature of pyrolysis zone can be obtained and analysis obtains
High-temperature；The microwave-heating biomass real time panoramic temperature monitoring regulator control system of the present invention is by controlling system by temp measuring system and microwave
System grafting together, contributes to realizing precisely switching microwave power, it is achieved the accurate regulation and control of the temperature in microwave pyrolytic process, promotees
Enter being uniformly distributed of pyrolysis zone temperature；Present system is reasonable in design, and microwave utilization rate is high, easy to operate, safe and reliable,
Microwave-excitation power can be regulated in time, make pyrolysis zone be in more stable pyrolysis temperature interval, prevent hot localised points and temperature runaway
Phenomenon occur, effective optimized product be distributed.
The principle of above-described embodiment only illustrative present invention and effect thereof, not for limiting the present invention, such as, the present invention
Three epitaxial layers or many epitaxial layers can also be used.Any person skilled in the art all can be in the spirit and the scope without prejudice to the present invention
Under, above-described embodiment is modified or changes.Therefore, art has usually intellectual such as without departing from this
All equivalences completed under spirit disclosed in invention and technological thought are modified or change, must be by the claim institute of the present invention
Contain.
Claims (14)
1. a microwave-heating biomass real time panoramic temperature monitoring regulator control system, it is characterised in that including: microwave-heating device, micro-
Wave attenuation passage, measuring and controlling temp device；
It is provided with pyrolysis zone inside microwave-heating device, is suitable to the pyrolysis of biomass samples；
Described microwave attenuation passage end is positioned at described microwave-heating device, and the other end extends to institute from described microwave-heating device
State the outside of microwave-heating device side, be suitable to suppress when described microwave-heating device works the effusion of microwave；
Described measuring and controlling temp device includes temperature measuring device and temperature control instrument；Described temperature measuring device be positioned at described microwave attenuation passage away from
The adjacent one end of described microwave-heating device, is suitable to measure the temperature of described pyrolysis zone；Described temperature control instrument and described temperature measurer
Device and described microwave-heating device are connected, and the temperature of described pyrolysis zone being suitable to measure according to described temperature measuring device adjusts in time
The microwave-excitation power of described microwave-heating device and pyrolysis temperature；
The center of described temperature measuring device, the center of described microwave attenuation passage and described pyrolysis zone are centrally located at same level line
On.
Microwave-heating biomass real time panoramic temperature monitoring regulator control system the most according to claim 1, it is characterised in that: described micro-
Ripple pyrolysis installation includes: microwave generator and reactor；
Described microwave generator includes that power selection unit, described power selection unit are connected with described temperature control instrument, are suitable to
The exciting power controlling the described microwave generator of lower regulation of described temperature control instrument；
Described reactor is positioned at described microwave generator, is provided with territory, sample deposition in described reactor, is suitable to hold biomass
Sample；Territory, described sample deposition is positioned at described pyrolysis zone, and the center in territory, described sample deposition and described microwave attenuation
Center and the described pyrolysis zone of passage are centrally located on same level line.
Microwave-heating biomass real time panoramic temperature monitoring regulator control system the most according to claim 2, it is characterised in that: described survey
Temperature instrument is infrared thermography, the focus of described infrared thermography and the center in territory, described sample deposition and described microwave
Attenuation path is centrally located on same level line.
Microwave-heating biomass real time panoramic temperature monitoring regulator control system the most according to claim 3, it is characterised in that: described red
The temperature-measuring range of outer thermal imaging system is-20 DEG C～1000 DEG C；The measurement distance of described infrared thermography is 0.5m～1.0m.
Microwave-heating biomass real time panoramic temperature monitoring regulator control system the most according to claim 1, it is characterised in that: described micro-
A length of 0.5m～1.0m of wave attenuation passage；The radial width of described microwave attenuation passage is less than the 2/7 of microwave wavelength.
Microwave-heating biomass real time panoramic temperature monitoring regulator control system the most according to any one of claim 1 to 5, its feature
It is: described microwave-heating biomass real time panoramic temperature monitoring regulator control system also includes: carrier gas device and volatile products are received
Acquisition means；
The outfan of described carrier gas device is positioned at described microwave-heating device, is suitable in described microwave-heating device pyrolytic process
Carrier gas is inputted, with the volatile products that will produce in pyrolytic process from described microwave-heating device band in described microwave-heating device
From to described volatile products collection device；
The input of described volatile products collection device is positioned at described microwave-heating device, is suitable to collect described microwave-heating dress
Put the volatile products produced in pyrolytic process.
Microwave-heating biomass real time panoramic temperature monitoring regulator control system the most according to claim 6, it is characterised in that: described load
Device of air includes: carrier gas bottle, the first transfer pipeline, gas trap and gas flow controller；
Described first transfer pipeline one end is connected with described carrier gas bottle, and the other end is positioned at described microwave-heating device, be suitable to by
In described carrier gas bottle, the carrier gas of storage is delivered in described microwave-heating device；
On the described gas trap described first transfer pipeline between described carrier gas bottle and described microwave-heating device, be suitable to control
The conducting of described first transfer pipeline and closedown；
On the described gas flow controller described first transfer pipeline between described carrier gas bottle and described microwave-heating device,
Be suitable to regulate the carrier gas flux in described first transfer pipeline.
Microwave-heating biomass real time panoramic temperature monitoring regulator control system the most according to claim 6, it is characterised in that wave described in:
The property sent out product collection device includes: condenser, gas washing removing impurities device, gas collector and the second transfer pipeline；
Described condenser, described gas washing removing impurities device and described gas collector are connected via described second transfer pipeline successively, and
Described condenser is connected inside described microwave-heating device via described second transfer pipeline.
9. a microwave-heating biomass real time panoramic temperature monitoring regulation and control method, it is characterised in that comprise the following steps:
1) the microwave-heating biomass real time panoramic temperature monitoring regulator control system as according to any one of claim 1 to 8 is set up；
2) prepare biomass samples, described biomass samples is placed in described microwave-heating device, and described biomass samples
Center is centrally located on same level line with center and the described pyrolysis zone of described microwave attenuation passage；
3) described measuring and controlling temp device and described microwave-heating device are started successively；Described microwave-heating device is heated to described biology
Pyrolysis temperature needed for quality sample, and keep certain pyrolysis time to make described biomass samples be pyrolyzed completely；Described measuring and controlling temp
Device monitors the Temperature Distribution of described pyrolysis zone universe in real time, and adjusts in time according to described pyrolysis zone universe profiling temperatures
Save described pyrolysis temperature.
Microwave-heating biomass real time panoramic temperature monitoring the most according to claim 9 regulation and control method, it is characterised in that: institute
State step 1) before also include the step of magnetic distribution of built-up pattern of simulated microwave pyrolysis installation and microwave attenuation passage,
To guarantee that described in the system of follow-up establishment, microwave attenuation passage can effectively stop microwave to escape.
11. microwave-heating biomass real time panoramic temperature monitoring according to claim 10 regulation and control methods, it is characterised in that:
COMSOL multiple physical field finite element emulation software is used to simulate described microwave-heating device and the group of described microwave attenuation passage
The magnetic distribution of matched moulds type.
12. microwave-heating biomass real time panoramic temperature monitoring according to claim 11 regulation and control methods, it is characterised in that
Described step 2) in, preparation biomass samples comprises the following steps:
21) provide biomass material, be dried after described biomass material is pulverized；
22) it is mixed to get described biomass samples with charcoal according to required ratio by pulverizing dried described biomass material.
13. microwave-heating biomass real time panoramic temperature monitoring according to claim 12 regulation and control methods, it is characterised in that:
Described biomass material is one or more combinations in rice straw, wood flour or brown coal；Described charcoal is activated carbon.
14. microwave-heating biomass real time panoramic temperature monitoring according to claim 9 regulation and control methods, it is characterised in that: institute
Stating pyrolysis temperature is 200 DEG C～500 DEG C, and described pyrolysis time is 15min～40min.
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