CN110542629B - Pyrolysis tar atomization level evaluation test system - Google Patents
Pyrolysis tar atomization level evaluation test system Download PDFInfo
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 128
- 238000000889 atomisation Methods 0.000 title claims abstract description 78
- 238000012360 testing method Methods 0.000 title claims abstract description 15
- 238000011156 evaluation Methods 0.000 title abstract description 9
- 238000003860 storage Methods 0.000 claims abstract description 74
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000011084 recovery Methods 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 36
- 239000002245 particle Substances 0.000 claims description 34
- 238000004321 preservation Methods 0.000 claims description 14
- 238000005485 electric heating Methods 0.000 claims description 10
- 239000010425 asbestos Substances 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052895 riebeckite Inorganic materials 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 15
- 239000003607 modifier Substances 0.000 abstract description 10
- 239000003921 oil Substances 0.000 description 63
- 239000007789 gas Substances 0.000 description 27
- 238000000034 method Methods 0.000 description 9
- 239000002028 Biomass Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002663 nebulization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/14—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a pyrolysis tar atomization level evaluation test system which comprises an oil storage tank, an air storage tank, an atomization chamber and an atomization effect detection device, wherein the atomization chamber is provided with an atomization nozzle, the oil storage tank is provided with a heating device, the oil storage tank is communicated with a first port of the atomization nozzle through a first pipeline, an oil pump is arranged on the first pipeline, the air storage tank is communicated with a second port of the atomization nozzle through a second pipeline, the air storage tank is connected with an air compressor through a pipeline, a heating chamber is arranged on the second pipeline, a recovery funnel is arranged at the lower end of the atomization chamber, and the atomization effect detection device is used for detecting atomization granularity of substances in the atomization chamber. The pyrolysis tar atomization level evaluation test system can be used for researching the influence of pyrolysis tar temperature, pyrolysis tar pressure, air temperature, air pressure, pyrolysis tar modifier and an atomization nozzle on pyrolysis tar atomization and providing data support for full combustion of pyrolysis tar.
Description
Technical Field
The invention relates to the technical field of renewable energy sources, in particular to a pyrolysis tar atomization level assessment test system.
Background
In recent years, energy and environmental problems caused by large-scale exploitation and utilization of fossil fuels such as coal and petroleum have been paid attention, and from the viewpoints of energy development and environmental protection, it is urgent to find a novel renewable clean energy source. Biomass energy is solar energy stored in a chemical energy form, has the characteristics of wide distribution, reproducibility and no pollution, and is widely valued for efficient conversion and clean utilization. Biomass is a renewable new energy source and its main utilization mode is thermochemical conversion, including pyrolysis, gasification, direct combustion, etc. By-products such as tar inevitably generated in the processes not only can reduce the utilization rate of biomass resources, but also can pollute and damage production equipment and surrounding environment. However, it has been found that biomass tar is an excellent liquid fuel and chemical industry feedstock as a pyrolysis byproduct, and that studies on its chemical nature and utilization can achieve dual effects of pollution abatement and resource utilization.
At present, tar generated by pyrolysis is generally used as fuel for combustion, and meanwhile, generated high-temperature flue gas is used as a heat source for providing heat for pyrolysis equipment at the front end. Compared with crude oil, the biomass tar has the defects of high impurity content, high water content, low combustible component content, low heat value, high flash point and the like, so that the tar is difficult to ignite, the heating furnace burns unstably, the combustion efficiency is low, the burner is worn, the air disc is coked, the heating surface is scaled and the like. The pyrolysis tar is sprayed for spray combustion, so that the problem can be well solved. In the atomization combustion process, the quality of the fuel atomization effect is a key for determining the combustion condition. The good atomization effect is a precondition for realizing high-efficiency combustion, and has very important significance for energy conservation and purification. Therefore, the components and the properties of the biomass tar are analyzed, the mechanism of tar atomization is clarified, the characteristics and the method of spraying are researched, and the mixing process of spraying and air is ascertained, so that the combustion is reasonably organized, and the method is very important for improving the combustion efficiency of the tar.
Disclosure of Invention
The invention aims to provide a pyrolysis tar atomization level evaluation test system, which aims to solve the problems in the prior art, explore the influences of pyrolysis tar temperature, pyrolysis tar pressure, air temperature and air pressure, pyrolysis tar modifier and an atomization nozzle on pyrolysis tar atomization, and provide data support for full combustion of pyrolysis tar.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a pyrolysis tar atomization level evaluation test system which comprises an oil storage tank, an air storage tank, an atomization chamber and an atomization effect detection device, wherein the atomization chamber is provided with an atomization nozzle, the atomization nozzle is detachably connected with the atomization chamber, the oil storage tank is provided with a heating device, the oil storage tank is communicated with a first port of the atomization nozzle through a first pipeline, an oil pump is arranged on the first pipeline, the air storage tank is communicated with a second port of the atomization nozzle through a second pipeline, the air storage tank is connected with an air compressor through a pipeline, a heating chamber is arranged on the second pipeline, a recovery funnel is arranged at the lower end of the atomization chamber, and the atomization effect detection device is used for detecting atomization granularity and accumulated distribution conditions of substances in the atomization chamber.
Preferably, a first pyrolysis tar manual valve, a second pyrolysis tar manual valve, a first Y-shaped filter and a first basket filter are arranged on the first pipeline between the oil storage tank and the oil pump, and an oil pressure gauge and a first pyrolysis tar electromagnetic valve are arranged on the first pipeline between the oil pump and the first port of the atomizer.
Preferably, the device further comprises a fourth pipeline, one end of the fourth pipeline is communicated with the first pipeline between the first pyrolysis tar manual valve and the second pyrolysis tar manual valve, the other end of the fourth pipeline is communicated with the first pipeline between the first basket filter and the oil pump, and a third pyrolysis tar manual valve, a second Y-type filter and a second basket filter are arranged on the fourth pipeline.
Preferably, the device further comprises a fifth pipeline, one end of the fifth pipeline is communicated with the first pipeline between the first pyrolysis tar manual valve and the second pyrolysis tar manual valve, the other end of the fifth pipeline is communicated with the outside, and a fourth pyrolysis tar manual valve is arranged on the fifth pipeline.
Preferably, the device further comprises a third pipeline, one end of the third pipeline is communicated with the oil storage tank, the other end of the third pipeline is communicated with the first pipeline, and a second pyrolysis tar electromagnetic valve is arranged on the third pipeline; the heat preservation device comprises an electric heating wire and an asbestos heat preservation layer, wherein the electric heating wire is wound on the first pipeline and the third pipeline, and the asbestos heat preservation layer is wrapped on the outer side of the electric heating wire.
Preferably, a heating jacket is arranged on the outer side of the oil storage tank, an end cover is arranged at the upper end of the oil storage tank and is in sealing connection with the oil storage tank, a medicine adding port is arranged on the end cover, a stirring device is arranged on the oil storage tank and comprises a stirring shaft, a stirring paddle and a driving motor, the stirring shaft penetrates through the end cover and stretches into the oil storage tank, the stirring paddle is arranged at the lower end of the stirring shaft, and the driving motor is arranged at the upper end of the stirring shaft and is positioned outside the oil storage tank and is used for driving the stirring paddle to rotate; the end cover is provided with a viscometer, the viscometer penetrates through the end cover and is used for measuring viscosity in the oil storage tank, the oil storage tank is also internally provided with a thermocouple, and the thermocouple is used for measuring the temperature of pyrolysis tar in the oil storage tank; the oil storage tank, the end cover, the stirring shaft and the stirring paddle are all made of stainless steel.
Preferably, a first gas manual valve, a gas pressure reducing valve, a flowmeter and a barometer are arranged on the second pipeline between the gas storage tank and the heating chamber, and a first gas manual control valve is arranged on the second pipeline between the heating chamber and the second port of the atomizing nozzle.
Preferably, the gas-liquid separator further comprises a sixth pipeline, one end of the sixth pipeline is communicated with the first pipeline, the other end of the sixth pipeline is communicated with the second pipeline, and a second gas manual control valve is arranged on the sixth pipeline.
Preferably, the atomizing chamber is made of transparent glass, a sliding cover is arranged at the upper end of the atomizing chamber, the sliding cover is in sliding connection with the atomizing chamber through a sliding groove at the upper end of the atomizing chamber, and an air hole is formed in the middle of the sliding cover.
Preferably, the atomization effect detection device comprises a particle size analyzer emitter, a particle size analyzer receiver and a three-dimensional moving platform, wherein the three-dimensional moving platform comprises a horizontal structure and a vertical structure, the particle size analyzer emitter and the particle size analyzer receiver are oppositely arranged and located on the same horizontal line, the atomization chamber is located between the particle size analyzer emitter and the particle size analyzer receiver, the particle size analyzer emitter and the particle size analyzer receiver are respectively located at two ends of the horizontal structure, and universal wheels are arranged at the lower end of the vertical structure.
Compared with the prior art, the invention has the following technical effects:
according to the invention, the first pipeline for conveying the pyrolysis tar and the second pipeline for conveying the gas are two independent pipelines, the temperature of the pyrolysis tar is changed through the heating device of the oil storage tank, the pressure of the pyrolysis tar is changed through the oil pump, the temperature of air is changed through the heating chamber, the pressure of the air is changed through the air compressor, different pyrolysis tar modifier is added into the oil storage tank, different atomizing nozzles are replaced, the pyrolysis tar and the air with different temperature and pressure conditions are sprayed into the atomizing chamber through the different atomizing nozzles, the atomizing effect under different conditions is detected through the atomizing effect detection device, the influence of the pyrolysis tar temperature, the pyrolysis tar pressure, the air temperature, the air pressure, the pyrolysis tar modifier and the atomizing nozzle on the atomization of the pyrolysis tar can be studied, and a data support is provided for the full combustion of the pyrolysis tar.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a pyrolysis tar atomization level assessment test system according to the present invention;
FIG. 2 is a schematic diagram of an atomization chamber and an atomization effect monitoring device in the present invention;
FIG. 3 is a schematic cross-sectional view of a third conduit according to the present invention;
wherein: 101-an oil storage tank, 102-an end cover, 103-a stirring device, 104-a heating sleeve, 105-a viscometer and 106-a thermocouple; 201-third pipeline, 202-heat preservation device, 203-second pyrolysis tar manual valve, 204-first Y-shaped filter, 205-first basket filter, 206-oil pump, 207-second pyrolysis tar solenoid valve, 208-oil pressure gauge, 209-first pipeline, 210-fourth pipeline, 211-fifth pipeline, 212-first pyrolysis tar solenoid valve, 213-third pyrolysis tar manual valve, 214-second Y-shaped filter, 215-second basket filter, 216-first pyrolysis tar manual valve, 217-fourth pyrolysis tar manual valve; 301-an air compressor, 302-an air storage tank, 303-a first gas manual valve, 304-a gas pressure reducing valve, 305-a flowmeter, 306-a barometer, 307-a heating chamber, 308-a second gas manual control valve, 309-a first gas manual control valve, 310-a second pipeline, 311-a sixth pipeline; 401-atomizing nozzle, 402-sliding cover, 403-atomizing chamber, 404-recycling hopper; 501-particle size analyzer transmitter, 502-particle size analyzer receiver, 503-three-dimensional mobile platform.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art based on the embodiments of the invention without any inventive effort, are intended to fall within the scope of the invention.
The invention aims to provide a pyrolysis tar atomization level evaluation test system, which aims to solve the problems in the prior art, explore the influences of pyrolysis tar temperature, pyrolysis tar pressure, air temperature and air pressure, pyrolysis tar modifier and an atomization nozzle on pyrolysis tar atomization, and provide data support for full combustion of pyrolysis tar.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1-3: the embodiment provides a pyrolysis tar atomization level test system, including oil storage tank 101, gas holder 302, atomizer 403 and atomization effect detection device, atomizer 403 is provided with atomizer 401, oil storage tank 101 is provided with heating device, oil storage tank 101 and atomizer 401's first port communicates through first pipeline 209, be provided with oil pump 206 on the first pipeline 209, oil pump 206 provides power and control pyrolysis tar flow, carry the pyrolysis tar after preheating to atomizer 403, gas holder 302 and atomizer 401's second port communicates through second pipeline 310, gas holder 302 has air compressor 301 through the pipe connection, be provided with heating chamber 307 on the second pipeline 310, atomizer 403 lower extreme is provided with recovery funnel 404, atomization effect detection device is used for detecting atomizer granularity and the cumulative distribution condition of the material in atomizer 403. The first pipeline 209 for conveying pyrolysis tar and the second pipeline 310 for conveying gas are two independent pipelines, the temperature of the pyrolysis tar is changed through the heating device of the oil storage tank 101, the pressure of the pyrolysis tar is changed through the oil pump 206, the temperature of air is changed through the heating chamber 307, the pressure of the air is changed through the air compressor 301, the pyrolysis tar and the air with different temperature and pressure conditions are sprayed into the atomizing chamber 403 through the different atomizing nozzles 401, the atomizing effect under different conditions is detected through the atomizing effect detection device, the influences of the pyrolysis tar temperature, the pyrolysis tar pressure, the air temperature, the air pressure, the pyrolysis tar modifier and the atomizing nozzles 401 on the pyrolysis tar atomization can be studied, and data support is provided for full combustion of the pyrolysis tar.
In this embodiment, a first pipeline 209 between the oil storage tank 101 and the oil pump 206 is provided with a first pyrolysis tar manual valve 216, a second pyrolysis tar manual valve 203, a first Y-type filter 204 and a first basket filter 205, the first Y-type filter 204 and the first basket filter 205 filter and clean pyrolysis tar in the pipeline, remove dust, remove impurities and remove tar, an oil pressure gauge 208 and a first pyrolysis tar electromagnetic valve 212 are provided on the first pipeline 209 between the oil pump 206 and a first port of the atomizer 401, and the oil pressure gauge 208 is used for detecting the pressure of the pyrolysis tar in the pipeline.
The embodiment further includes a fourth pipeline 210, one end of the fourth pipeline 210 is communicated with a first pipeline 209 between the first pyrolysis tar manual valve 216 and the second pyrolysis tar manual valve 203, the other end of the fourth pipeline 210 is communicated with a first pipeline 209 between the first basket filter 205 and the oil pump 206, a third pyrolysis tar manual valve 213, a second Y-type filter 214 and a second basket filter 215 are arranged on the fourth pipeline 210, and the second Y-type filter 214 and the second basket filter 215 filter and clean, remove dust, remove impurities and remove coke pyrolysis tar in the pipelines. The third pyrolysis tar manual valve 213, the second Y-filter 214 and the second basket filter 215 on the fourth pipeline 210 can perform replacement work when the second pyrolysis tar manual valve 203, the first Y-filter 204 and the first basket filter 205 on the first pipeline 209 cannot be used normally, so that the device can work normally.
The embodiment further includes a fifth pipeline 211, one end of the fifth pipeline 211 is communicated with the first pipeline 209 between the first pyrolysis tar manual valve 216 and the second pyrolysis tar manual valve 203, the other end of the fifth pipeline 211 is communicated with the outside, and a fourth pyrolysis tar manual valve 217 is arranged on the fifth pipeline 211. The second and third manual pyrolysis tar valves 203 and 213 are closed, and the first and fourth manual pyrolysis tar valves 216 and 217 are opened to discharge pyrolysis tar in the oil tank 101.
The embodiment further comprises a third pipeline 201, one end of the third pipeline 201 is communicated with the oil storage tank 101, the other end of the third pipeline 201 is communicated with a first pipeline 209, and a second pyrolysis tar electromagnetic valve 207 is arranged on the third pipeline 201; the heat preservation device 202 is wrapped outside the first pipeline 209 and the third pipeline 201, the heat preservation device 202 comprises an electric heating wire and an asbestos heat preservation layer, the electric heating wire is wound on the first pipeline 209 and the third pipeline 201, the asbestos heat preservation layer is wrapped outside the electric heating wire, and the heat preservation device 202 ensures that pyrolysis tar of the first pipeline 209 and the third pipeline 201 cannot block the pipeline due to temperature reduction in the conveying process.
In this embodiment, a heating jacket 104 is disposed on the outside of the oil storage tank 101, the heating jacket 104 is disposed on the outside of the oil storage tank 101 and is detachably connected with the oil storage tank 101, an end cover 102 is disposed at the upper end of the oil storage tank 101, the end cover 102 is in sealing connection with the oil storage tank 101, a dosing port is disposed on the end cover 102, a modifier is added into the oil storage tank 101, a stirring device 103 is disposed on the oil storage tank 101, the stirring device 103 comprises a stirring shaft, a stirring paddle and a driving motor, the stirring shaft penetrates through the end cover 102 and stretches into the oil storage tank 101, the stirring paddle is disposed at the lower end of the stirring shaft, the driving motor is disposed at the upper end of the stirring shaft and is located outside the oil storage tank 101, the driving motor is used for driving the stirring paddle to rotate, the stirring paddle can promote uniform mixing of pyrolysis tar and the modifier, heat transfer between liquid and solid wall surface can be enhanced, so that pyrolysis tar is heated uniformly, the heating jacket 104 adopts an electric heating jacket with heating and heat preservation functions, and the stirring paddle can keep the homogeneous liquid state of pyrolysis tar; the end cover 102 is provided with the viscometer 105, the viscometer 105 penetrates through the end cover 102 to be used for measuring the viscosity in the oil storage tank 101, the viscometer 105 adopts a digital rotary viscometer, continuous measurement can be carried out, and a liquid crystal screen directly displays data such as the viscosity, the rotating speed and the like; a thermocouple 106 is also arranged in the oil storage tank 101, and the thermocouple 106 is used for measuring the temperature of pyrolysis tar in the oil storage tank 101; the oil storage tank 101, the end cover 102, the stirring shaft and the stirring paddle are all made of stainless steel, and the oil storage tank has the characteristics of corrosion resistance and easiness in cleaning.
In this embodiment, a first gas manual valve 303, a gas pressure reducing valve 304, a flowmeter 305 and a gas pressure meter 306 are disposed on a second pipeline 310 between the gas storage tank 302 and the heating chamber 307, a first gas manual control valve 309 is disposed on the second pipeline 310 between the heating chamber 307 and a second port of the atomizer 401, the gas pressure reducing valve 304 is used for reducing pressure of air, the flowmeter 305 is used for measuring flow rate of gas in the second pipeline 310, and the gas pressure meter 306 is used for measuring pressure of gas in the second pipeline 310. The structure on the second conduit 310 ensures that a precise amount of gas is accurately delivered to the nebulization chamber 403. The heating chamber 307 heats the filtered air to avoid condensing the pyrolysis tar after the cold air is mixed with the pyrolysis tar. An air cleaner is also provided on the second pipe 310 for filtering air.
The embodiment further comprises a sixth pipeline 311, one end of the sixth pipeline 311 is communicated with the first pipeline 209, the other end of the sixth pipeline 311 is communicated with the second pipeline 310, and a second gas manual control valve 308 is arranged on the sixth pipeline 311. In this embodiment, each pipeline is a stainless steel pipeline, which can prevent corrosion and is easy to clean.
In this embodiment, the atomizing chamber 403 is made of transparent glass, so that observation is facilitated, a sliding cover 402 is arranged at the upper end of the atomizing chamber 403, the sliding cover 402 is slidably connected with the atomizing chamber 403 through a sliding groove at the upper end of the atomizing chamber 403, an air hole is formed in the middle of the sliding cover 402, the air hole can balance the pressure in the atomizing chamber 403, a container is arranged below the atomizer, and pyrolysis tar is collected into the container through a recycling funnel 404 below the atomizing chamber 403.
In this embodiment, the atomization effect detection device includes a particle size analyzer and a three-dimensional moving platform 503, the particle size analyzer is in the prior art, the particle size analyzer includes a particle size analyzer transmitter 501 and a particle size analyzer receiver 502, the particle size analyzer is connected with a computer, and a particle size distribution diagram can be generated at a computer interface. The three-dimensional moving platform 503 of the embodiment can move the atomization effect detecting device in a three-dimensional space, and can measure the particle size distribution of the atomization section in the whole process. The three-dimensional moving platform 503 comprises a horizontal structure and a vertical structure, the particle size analyzer emitter 501 and the particle size analyzer receiver 502 are oppositely arranged and located on the same horizontal line, the atomizing chamber 403 is located between the particle size analyzer emitter 501 and the particle size analyzer receiver 502, the particle size analyzer emitter 501 and the particle size analyzer receiver 502 are respectively located at two ends of the horizontal structure, universal wheels are arranged at the lower end of the vertical structure, and the position of the atomization effect detection device can be changed through the universal wheels. In this embodiment, the horizontal structure and the vertical structure are both telescopic structures, the horizontal structure can be adjusted according to the size of the atomizing chamber 403, the vertical structure can be adjusted according to the height of the atomizing chamber 403 and the height of the atomizing nozzle 401,
in this embodiment, the atomizing nozzle 401 is a detachable structure, so that different atomizing nozzles 401 can be replaced according to different requirements to obtain different atomization effects, and a pressure atomizing nozzle or an air atomizing nozzle can be replaced according to the requirements, wherein the oil pressure of the pressure atomizing nozzle is 1.2-2.0 MPa, the atomizing angle is 45-60 degrees, the oil pressure of the air atomizing nozzle is 0.05-0.1 MPa, and the air pressure is more than 0.5MPa.
When the pyrolysis tar atomization level test system of the embodiment is used, firstly, pyrolysis tar and related modifier are added into an oil storage tank 101 with good sealing property for preheating, a heating jacket 104 controls the temperature of the pyrolysis tar to be about 100 ℃, a stirring device 103 uniformly stirs the mixture, and a viscometer 105 measures the viscosity of the pyrolysis tar; then the first pyrolysis tar manual valve 216 and the second pyrolysis tar manual valve 203 are opened, pyrolysis tar flows into the first pipeline 209 from the oil storage tank 101, is filtered and cleaned by the first Y-shaped filter 204 and the first basket filter 205, and a certain amount of pyrolysis tar is conveyed to the tail end of the pipeline by the oil pump 206; simultaneously, a first gas manual valve 303 of a second pipeline 310 is opened, air is conveyed into an air filter by an air storage tank 302 for filtering under the action of an air compressor 301, then the flow rate of the air is controlled by a flowmeter 305, the pressure of the air is controlled by a barometer 306 and a gas pressure reducing valve 304, the air is heated by a heating chamber 307, and the air with certain pressure, flow rate and temperature and liquid pyrolysis tar conveyed by a first pipeline 209 are injected into an atomization chamber 403 together through an atomization nozzle 401; the particle size analyzer analyzes the atomization condition in the atomization chamber 403 through the glass chamber wall of the atomization chamber 403 at different directions and angles by the three-dimensional moving platform 503, and uploads data information to a computer terminal, and finally researchers obtain an evaluation result through analyzing the data; the atomized pyrolysis tar flows into the oil drum through the recovery funnel 404 for recovery.
Compared with the prior art, the embodiment has the following advantages:
1. the embodiment can evaluate the atomization level of the pyrolysis tar, explore the influence of parameters such as the temperature, the atomization pressure, the air temperature, the pyrolysis tar modifier (mixed with diesel oil, gasoline, ethanol and the like or circularly mixed for modification and the like) and the like on the atomization of the pyrolysis tar, is suitable for the analysis of the atomization level of the biomass pyrolysis tar under different conditions, is beneficial to optimizing atomization process parameters, and provides data support for the full combustion of the pyrolysis tar;
2. the pyrolysis tar atomization level evaluation test system can realize temperature regulation (0-100 ℃), oil pressure regulation (0.2-1.0 MPa) and air pressure regulation (0.2-0.8 MPa);
3. the atomization effect monitoring device in the embodiment can realize multi-azimuth and multi-angle atomization particle detection, so that the atomization effect detection is more reliable;
4. the embodiment utilizes the performance that the higher the temperature is in a certain range, the better the fluidity is, the pyrolysis tar is preheated to 100 ℃ in the oil storage tank 101, and meanwhile, the heat preservation device 202 is arranged on the pyrolysis tar conveying pipeline, so that the pyrolysis tar can not block a pipeline in the conveying process, and the required pyrolysis tar amount can be accurately conveyed.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (3)
1. Pyrolysis tar atomization level test system, its characterized in that: the device comprises an oil storage tank, an air storage tank, an atomizing chamber and an atomization effect detection device, wherein the atomizing chamber is provided with an atomizing nozzle, the atomizing nozzle is detachably connected with the atomizing chamber, the oil storage tank is provided with a heating device, the oil storage tank is communicated with a first port of the atomizing nozzle through a first pipeline, an oil pump is arranged on the first pipeline, the air storage tank is communicated with a second port of the atomizing nozzle through a second pipeline, the air storage tank is connected with an air compressor through a pipeline, a heating chamber is arranged on the second pipeline, a recovery funnel is arranged at the lower end of the atomizing chamber, and the atomization effect detection device is used for detecting the granularity and the accumulated distribution condition of atomization of substances in the atomizing chamber;
a first pyrolysis tar manual valve, a second pyrolysis tar manual valve, a first Y-shaped filter and a first basket filter are arranged on the first pipeline between the oil storage tank and the oil pump, and an oil pressure gauge and a first pyrolysis tar electromagnetic valve are arranged on the first pipeline between the oil pump and the first port of the atomizer;
the device further comprises a fourth pipeline, one end of the fourth pipeline is communicated with the first pipeline between the first pyrolysis tar manual valve and the second pyrolysis tar manual valve, the other end of the fourth pipeline is communicated with the first pipeline between the first basket filter and the oil pump, and a third pyrolysis tar manual valve, a second Y-shaped filter and a second basket filter are arranged on the fourth pipeline;
the device further comprises a fifth pipeline, one end of the fifth pipeline is communicated with the first pipeline between the first pyrolysis tar manual valve and the second pyrolysis tar manual valve, the other end of the fifth pipeline is communicated with the outside, and a fourth pyrolysis tar manual valve is arranged on the fifth pipeline;
the system further comprises a third pipeline, one end of the third pipeline is communicated with the oil storage tank, the other end of the third pipeline is communicated with the first pipeline, and a second pyrolysis tar electromagnetic valve is arranged on the third pipeline; the heat preservation device comprises an electric heating wire and an asbestos heat preservation layer, wherein the electric heating wire is wound on the first pipeline and the third pipeline, and the asbestos heat preservation layer is wrapped on the outer side of the electric heating wire;
the oil storage tank is characterized in that a heating sleeve is arranged on the outer side of the oil storage tank, an end cover is arranged at the upper end of the oil storage tank, the end cover is in sealing connection with the oil storage tank, a dosing port is arranged on the end cover, a stirring device is arranged on the oil storage tank and comprises a stirring shaft, a stirring paddle and a driving motor, the stirring shaft penetrates through the end cover and stretches into the oil storage tank, the stirring paddle is arranged at the lower end of the stirring shaft, and the driving motor is arranged at the upper end of the stirring shaft and is positioned outside the oil storage tank and is used for driving the stirring paddle to rotate; the end cover is provided with a viscometer, the viscometer penetrates through the end cover and is used for measuring viscosity in the oil storage tank, the oil storage tank is also internally provided with a thermocouple, and the thermocouple is used for measuring the temperature of pyrolysis tar in the oil storage tank; the oil storage tank, the end cover, the stirring shaft and the stirring paddle are all made of stainless steel;
the atomizing chamber is made of transparent glass, a sliding cover is arranged at the upper end of the atomizing chamber, the sliding cover is in sliding connection with the atomizing chamber through a sliding groove at the upper end of the atomizing chamber, and an air hole is formed in the middle of the sliding cover;
the atomization effect detection device comprises a particle size analyzer emitter, a particle size analyzer receiver and a three-dimensional moving platform, wherein the three-dimensional moving platform comprises a horizontal structure and a vertical structure, the particle size analyzer emitter and the particle size analyzer receiver are oppositely arranged and located on the same horizontal line, an atomization chamber is located between the particle size analyzer emitter and the particle size analyzer receiver, the particle size analyzer emitter and the particle size analyzer receiver are respectively located at two ends of the horizontal structure, and universal wheels are arranged at the lower end of the vertical structure.
2. The pyrolysis tar atomization level assessment test system of claim 1 wherein: the second pipeline between the air storage tank and the heating chamber is provided with a first gas manual valve, a gas pressure reducing valve, a flowmeter and a barometer, and the second pipeline between the heating chamber and the second port of the atomizing nozzle is provided with a first gas manual control valve.
3. The pyrolysis tar atomization level assessment test system of claim 1 wherein: the gas-liquid separator further comprises a sixth pipeline, one end of the sixth pipeline is communicated with the first pipeline, the other end of the sixth pipeline is communicated with the second pipeline, and a second gas manual control valve is arranged on the sixth pipeline.
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