CN101403735B - Fast measuring method and instrument for biomass gasification gas tar oil content - Google Patents
Fast measuring method and instrument for biomass gasification gas tar oil content Download PDFInfo
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- CN101403735B CN101403735B CN2008101529638A CN200810152963A CN101403735B CN 101403735 B CN101403735 B CN 101403735B CN 2008101529638 A CN2008101529638 A CN 2008101529638A CN 200810152963 A CN200810152963 A CN 200810152963A CN 101403735 B CN101403735 B CN 101403735B
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Abstract
The invention relates to a method and an instrument used for quickly measuring the content of tar in biomass gasification gas, which solves the problem of online measurement and the display of tar content for the first time. Grains are removed by a deduster in a heated pipeline in heat-preservation state; the gas with the grains removed passes through a volume flowmeter and a mass flowmeter a; data is collected and sent to a controller; the gas with the data collected is subsequently pumped into a tar absorber so as to remove the tar; the clean gas with the tar removed by the tar absorber is subsequently arranged in a mass flowmeter b and data is collected again and sent to the controller; and the controller processes the data subsequently and outputs the processing result to a display. The method and the instrument achieve the precise, portable and quick measurement and online display of the tar in the biomass gas tar, reduce the middle link of tar measurement, improve the measurement precision, greatly shorten the measurement period of the tar, save time and manpower, have small volume, is convenient for being carried, and is especially suitable for the operation and usage in broad county areas.
Description
Technical field
The present invention relates to a kind of portable quick measuring method of quick measurement biomass gasification gas tar oil content and instrument, this method and instrument are mainly used in the tar content in the combustion gas of measuring the biomass gasifying furnace generation, and have characteristics such as portable, quick, accurate and online demonstration.
Background technology
Country's " medium-term and long-term development plan of regenerative resource " clearly proposes, and makes the regenerative resource consumption figure reach 10% of total energy consumption by 2010, reaches 15% developing goal to the year two thousand twenty.In state-owned 7.5 hundred million populations live in the rural area, be subjected to the restriction of economy and technical merit, still have most rural areas to rely on traditional approachs to utilize biomass energy.This mode of utilizing causes efficiency of energy utilization low, and environmental pollution is serious.Solving the rural energy problem is the inevitable requirement of all-round construction new socialist countryside, and biomass gasification technology solves one of effective way of rural energy problem exactly.
Build in the new socialist countryside under the promotion of the new rural development target in He Xin town, biomass gasification technology development recent years rapidly.Nearly 1000 places of level component of biomass gasification for gas supplying, present Chinese villages and small towns, family surplus the air feed amount 300,000.Technical bottleneck problems such as but current biomass gasification technology ubiquity the gas tar oil content height, and pipeline and combustion apparatus easily stop up, and environmental pollution is serious.Therefore, the measurement of tar content just seems particularly important with monitoring.Yet domestic tar measuring method exists long, problems such as the measurement cost is big, measuring process complexity measuring period now.Therefore, invent a kind of method and a kind of instrument, it is quick, simple and low-cost significant to realize that tar is measured
Domestic patent about tar sampling and measurement all is with methods such as cold trapping method or solid absorption tar to be sampled usually seldom, then in lab analysis, draws tar content at last, and these methods are long measuring period, the process complexity, and cost is big.Relevant document is as the quick collector of visual biomass coke tar (patent No. CN02250468.0) of Guangzhou Energy Resource Inst., Chinese Academy of Sciences etc.
Abroad also seldom about tar sampling and the patent of measuring, identical with domestic situation basically, all be that sampling earlier is then in lab analysis.What adopt in the process of formulating the tar measurement standard as European BTG (Biomass Technology Group) team also is the sampling of cold trapping method, then in lab analysis.
These methods can realize under laboratory conditions that the rural area is on-the-spot uses but be difficult in.
Summary of the invention
The technical problem to be solved in the present invention: (1) existing tar measuring technique precision is low, and measuring period is long, can not be fast, repeatedly measure; (2) the required equipment of existing tar measuring method is more, and the process complexity moves inconvenience.(3) existing measuring technique cost is bigger, the horizontal characteristics of incompatibility rural area Technological Economy
The present invention proposes to measure the method for biomass gasification gas tar oil content, solves the method for on-line measurement and demonstration tar content first.
The method of measurement biomass gasification gas tar oil content of the present invention is as follows: remove particle through fly-ash separator in the pipeline of heat tracing; Remove combustion gas behind the particle by volumetric displacement meter and mass flowmeter a, image data is sent to controller; Combustion gas after the image data fed in the tar absorber again remove tar; Clean gas through the tar absorber passes through mass flowmeter b again, and image data is sent to controller once more; The controller deal with data is transferred to display with result.
The equipment of measuring method of the present invention comprises fly-ash separator, heating jacket, valve, volumetric displacement meter, mass flowmeter, tar absorber, controller, transmission line, display; Connect fuel gas inlet, stop valve, fly-ash separator, flow control valve, volumetric displacement meter and mass flowmeter a successively by the pipeline that has heating jacket, be provided with mass flowmeter a before the tar absorber, volumetric displacement meter is arranged on before the mass flowmeter a; Be provided with mass flowmeter b behind the tar absorber, it is connected through data line and control for volumetric displacement meter, mass flowmeter a and mass flowmeter b, and controller is connected with display.
The method that described controller deal with data adopts is: volumetric displacement meter and mass flowmeter become the chip (chip be written into measure required calculation procedure) of digital data transmission in the controller with the analog signal conversion of combustion gas parameter, chip calculates data according to program, result of calculation is transported to display again and shows.The calculating principle is as follows:
C
Tar-tar content, kg/Nm
3
m
Gas1-contain the mass rate of tar combustion gas, kg/s
m
Gas2The mass rate of-clean fuel gas, kg/s
v
Gas-contain the mark condition volumetric flow rate of tar combustion gas, Nm
3/ s
The invention has the beneficial effects as follows accurate, portable, measurement and the online demonstration fast that have realized biomass gas tar oil.Reduce the intermediate link that tar is measured, improved measuring accuracy; Shorten tar measuring period greatly, saved time and manpower; Volume is little, and is easy to carry; Solve the problem of the content of on-line measurement and demonstration gas tar oil first.
Description of drawings
Fig. 1: process flow diagram of the present invention.
Fig. 2: equipment of the present invention is thrown the face synoptic diagram.
Fig. 3: the front appearance synoptic diagram of present device.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment 1:
Adopt technological process method of the present invention, the concrete equipment of design is to comprise fuel gas inlet 1, fly-ash separator 4, heat-insulation layer 3, heating jacket 6, stop valve 2, flow control valve 5, volumetric displacement meter 7, mass flowmeter a, mass flowmeter b, tar absorber 11, controller, transmission line, display 13, control knob 14; Connect fuel gas inlet 1, stop valve 2, fly-ash separator 4, flow control valve 5, volumetric displacement meter 7 and mass flowmeter a successively by the pipeline that has heating jacket, and outside with the equipment on top and pipeline, be provided with the good heat-insulation layer of heat-insulating property 3; Be provided with mass flowmeter a before the tar absorber, volumetric displacement meter is arranged on before the mass flowmeter a; Be provided with mass flowmeter b behind the tar absorber, the data output end of volumetric displacement meter, mass flowmeter a and mass flowmeter b is connected with controller through data line, and controller is connected with display.The outlet of mass flowmeter a is connected with tar absorber inlet, and the outlet of tar absorber is connected with the inlet of mass flowmeter b, and the outlet of mass flowmeter b is connected with vacuum pump 10, and vacuum pump outlet is connected with gas outlet 12.Volumetric displacement meter links to each other with the controller input end with the mass flowmeter data output end, and controller output end links to each other with display 13, and apparent size is 0.5m * 0.5m * 0.3m.
Embodiment 2:
With fly-ash separator among the last embodiment 4 and stop valve 2 transpositions.
Embodiment 3:
With volumetric displacement meter among the last embodiment 7 and mass flowmeter a transposition.
The measurement effect contrast is as follows:
1. measured combustion gas: platform living beings gasification station combustion gas (gas holder porch) is angled in west, village, area just outside a city gate, Jinghai County, Tianjin
Measure with method and apparatus of the present invention: Measuring Time, from beginning to measure the time remaining 2 minutes that obtains data; Duplicate measurements continuously; Tar content: 56mg/Nm
3
Measuring method with the laboratory cold trapping: Measuring Time obtains data 2 days from sampling; Duplicate measurements continuously; Sampling and measurement devices is a lot, carries inconvenience; Tar content: 58mg/Nm
3
Two kinds of method measuring error are about 3.45%.
2. measured combustion gas: Tianjin Wuqing District Da Liu fort living beings gasification station combustion gas (fans entrance place)
Measure with method and apparatus of the present invention: Measuring Time is from beginning to measure the 2 minutes time of acquisition data; Duplicate measurements continuously; Tar content: 173mg/Nm
3
Measuring method with the laboratory cold trapping: Measuring Time obtains data 2 days from sampling; Duplicate measurements continuously; Sampling and measurement devices is a lot, carries inconvenience; Tar content: 168mg/Nm
3
Two kinds of method measuring error are about 2.98%.
3. measured combustion gas: Daqu river, Jinghai County, Tianjin living beings gasification station combustion gas (gas holder porch)
Measure with method and apparatus of the present invention: Measuring Time is from beginning to measure the 2 minutes time of acquisition data; Duplicate measurements continuously; Tar content: 61mg/Nm
3
Measuring method with the laboratory cold trapping: Measuring Time obtains data 2 days from sampling; Duplicate measurements continuously; Sampling and measurement devices is a lot, carries inconvenience; Tar content: 64mg/Nm
3
Two kinds of method measuring error are about 4.9%.
Obviously, the foregoing description only is giving an example of doing in order to be illustrated more clearly in, and is not the qualification to embodiment.Can also make other changes in different forms on the basis of the above description for those of ordinary skill in the field.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being amplified out thus or change still are among the protection domain of the invention.
Claims (2)
1. quick measuring method of biomass gasification gas tar oil content is characterized in that described method is as follows: combustion gas is removed particle through fly-ash separator in the pipeline of heat tracing; Remove combustion gas behind the particle by volumetric displacement meter and mass flowmeter a, image data is sent to controller; Combustion gas after the image data fed in the tar absorber again remove tar; Clean gas through the tar absorber passes through mass flowmeter b again, and image data is sent to controller once more; The controller deal with data is transferred to display with result.
2. the instrument of the described measuring method of claim 1 comprises fly-ash separator, heating jacket, heat-insulation layer, valve, volumetric displacement meter, mass flowmeter a, mass flowmeter b, tar absorber, controller, transmission line, display, control knob; It is characterized in that connecting fuel gas inlet, stop valve, fly-ash separator, flow control valve, volumetric displacement meter and mass flowmeter a successively, and outside with the equipment on top and pipeline, the good heat-insulation layer of heat-insulating property is set by the pipeline that has heating jacket; Be provided with mass flowmeter a and volumetric displacement meter before the tar absorber; Be provided with mass flowmeter b behind the tar absorber, volumetric displacement meter, mass flowmeter a and mass flowmeter b arrive controller through data line with digital data transmission, and controller is transferred to display with result of calculation and shows.
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| CN2008101529638A CN101403735B (en) | 2008-11-12 | 2008-11-12 | Fast measuring method and instrument for biomass gasification gas tar oil content |
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| CN2008101529638A CN101403735B (en) | 2008-11-12 | 2008-11-12 | Fast measuring method and instrument for biomass gasification gas tar oil content |
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| CN101403735B true CN101403735B (en) | 2011-11-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108303395A (en) * | 2018-02-01 | 2018-07-20 | 农业部规划设计研究院 | The method for fast measuring of tar content during a kind of biomass continuous pyrolysis |
| CN108387602B (en) * | 2018-04-24 | 2023-07-18 | 南京林业大学 | Instrument for measuring actual heat value of biomass gasification hot gas and measuring method thereof |
| CN109540724B (en) * | 2018-11-30 | 2024-02-27 | 南京林业大学 | Continuous online measurement system and measurement method for biomass gas tar |
| CN109708989B (en) * | 2018-12-28 | 2021-10-01 | 扬州大学 | Device for measuring contents of oil, water and particulate matters in gas and using method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4990456A (en) * | 1988-10-31 | 1991-02-05 | Polysar Limited | Analysis of asphalt |
| CN101225315A (en) * | 2007-12-18 | 2008-07-23 | 中国科学院广州能源研究所 | Method and device for biomass compound gasification |
| CN101280199A (en) * | 2008-05-14 | 2008-10-08 | 合肥工业大学 | High-temperature low-tar biomass gasifier |
-
2008
- 2008-11-12 CN CN2008101529638A patent/CN101403735B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4990456A (en) * | 1988-10-31 | 1991-02-05 | Polysar Limited | Analysis of asphalt |
| CN101225315A (en) * | 2007-12-18 | 2008-07-23 | 中国科学院广州能源研究所 | Method and device for biomass compound gasification |
| CN101280199A (en) * | 2008-05-14 | 2008-10-08 | 合肥工业大学 | High-temperature low-tar biomass gasifier |
Non-Patent Citations (1)
| Title |
|---|
| 孙海燕.白煤试验中焦油及粉尘含量的快速分析.《一重技术》.2003,(第3期), * |
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