CN110608927B - Tar sampler in biomass gasification fuel gas and working method thereof - Google Patents
Tar sampler in biomass gasification fuel gas and working method thereof Download PDFInfo
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- CN110608927B CN110608927B CN201910929434.2A CN201910929434A CN110608927B CN 110608927 B CN110608927 B CN 110608927B CN 201910929434 A CN201910929434 A CN 201910929434A CN 110608927 B CN110608927 B CN 110608927B
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- 239000002737 fuel gas Substances 0.000 title claims abstract description 31
- 239000002028 Biomass Substances 0.000 title claims abstract description 29
- 238000002309 gasification Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 163
- 238000005406 washing Methods 0.000 claims abstract description 109
- 238000005070 sampling Methods 0.000 claims abstract description 58
- 239000002904 solvent Substances 0.000 claims abstract description 29
- 238000003860 storage Methods 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims description 32
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 28
- 239000011521 glass Substances 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 20
- 239000002826 coolant Substances 0.000 claims description 12
- 239000003507 refrigerant Substances 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000011269 tar Substances 0.000 claims 8
- 238000005057 refrigeration Methods 0.000 claims 1
- 238000005201 scrubbing Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- -1 moisture Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002916 wood waste Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N2001/2282—Devices for withdrawing samples in the gaseous state with cooling means
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a tar sampler in biomass gasification fuel gas and a working method thereof, comprising a gas washing mechanism, a refrigerating mechanism, a clean fuel gas collecting mechanism and a tar collecting mechanism, wherein the temperatures in a first gas washing section cavity and a second gas washing section cavity are maintained at about 0 ℃ through the refrigerating mechanism, the sampling condition is mild, the clean fuel gas collecting mechanism and the tar collecting mechanism can sample tar and clean fuel gas at the same time, the sampling efficiency is improved, the equipment can continuously and uninterruptedly operate, only a solvent is required to be added and a sampling solution storage is required to be replaced for each sampling, the next sampling can be immediately carried out after the once sampling, and the sampling is convenient and rapid.
Description
Technical Field
The invention relates to the field of biomass pyrolysis gasification, in particular to a tar sampler in biomass gasification fuel gas and a working method thereof.
Background
The biomass gasification fuel gas is a combustible gas produced by pyrolysis or gasification decomposition of biomass at high temperature by taking crop straw, wood waste, edible fungus residues, livestock manure, sewage sludge and other substances containing the biomass as raw materials. The resource gas components are hydrogen, carbon monoxide, a small amount of low molecular carbon hydrogen and the like, the other components are nitrogen, carbon dioxide, moisture, tar, particulate matters and the like, and the biomass gas just generated by heating the biomass also contains a certain amount of heat. In the prior art, different devices are respectively adopted for sampling tar and clean fuel gas in biomass gasification fuel gas, the sampling process is complex, the sampling efficiency is low, in order to achieve higher tar collection rate, 6-8 sampling bottles are needed for the tar sampling device, part of the sampling bottles need to work in a low-temperature water bath below-20 ℃, the sampling device and the process are complex, the sampling condition is severe, and continuous operation is difficult.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the tar sampler in the biomass gasification fuel gas, which can realize integrated sampling of tar and clean fuel gas and improve the sampling efficiency.
According to the embodiment of the invention, the tar sampler in biomass gasification fuel gas comprises:
The gas washing mechanism comprises a first gas washing section cavity, a glass filter and a second gas washing section cavity which are sequentially arranged from top to bottom, wherein the first gas washing section cavity is communicated with the second gas washing section cavity through the glass filter, a gas inlet pipe communicated with the outside is arranged in the second gas washing section cavity, a first solvent inlet is arranged on the first gas washing section cavity, and a second solvent inlet is arranged on the second gas washing section cavity;
The refrigerating mechanism comprises a refrigerator, and a first cooling jacket and a second cooling jacket which are respectively sleeved on the first gas washing section cavity and the second gas washing section cavity, wherein the first cooling jacket and the second cooling jacket are communicated through a first connecting pipe, and the first cooling jacket and the second cooling jacket are respectively communicated with the refrigerator through a first refrigerant pipeline and a second refrigerant pipeline;
The clean gas collection mechanism comprises a second connecting pipe communicated with the first gas washing section cavity, and the second connecting pipe is used for collecting gas in the first gas washing section cavity;
The tar collection mechanism comprises a solution reservoir communicated with the cavity of the second gas washing section, and the solution reservoir is used for collecting liquid in the cavity of the first gas washing section and the cavity of the second gas washing section.
The tar sampler in biomass gasification fuel gas provided by the embodiment of the invention has at least the following beneficial effects: according to the invention, the temperature in the first gas washing section cavity and the second gas washing section cavity is maintained at about zero degree through the refrigerating mechanism, the sampling condition is mild, the clean gas and the tar can be sampled simultaneously through the clean gas collecting mechanism and the tar collecting mechanism, the sampling efficiency is improved, the equipment can continuously and uninterruptedly operate, only the solvent is required to be added and the sampling solution storage is required to be replaced for each sampling, the next sampling can be immediately carried out after the once sampling is completed, and the sampling is convenient and rapid and the efficiency is high.
According to some embodiments of the invention, the second connecting pipe is provided with a first three-way valve, a second three-way valve, an air pump, a third three-way valve, a flow regulating valve, a rotameter, a pressure gauge, a first thermometer, an accumulation flowmeter, a fourth three-way valve and a clean gas outlet in sequence from one end connected with the cavity of the first gas washing section to the other end.
According to some embodiments of the invention, the flow control valve further comprises a third connecting pipe, and two ends of the third connecting pipe are respectively connected with the first three-way valve and the flow control valve.
According to some embodiments of the invention, the solution storage device further comprises a fourth connecting pipe, wherein two ends of the fourth connecting pipe are respectively connected with the second three-way valve and the solution storage device.
According to some embodiments of the invention, the third three-way valve is connected with an evacuation line.
According to some embodiments of the invention, gaskets are arranged at the upper end and the lower end of the glass filter, and the first gas washing section cavity, the second gas washing section cavity, the glass filter and the gaskets are clamped and fixed through conical clamps.
According to some embodiments of the invention, a second thermometer is provided on the second refrigerant pipe.
According to some embodiments of the invention, a liquid outlet is arranged at the lower end of the second gas washing section cavity, a first valve is arranged on the liquid outlet, and one end of the liquid outlet is communicated with the solution reservoir.
According to some embodiments of the invention, a gas outlet is arranged at the upper end of the first gas washing section cavity, a second valve is arranged on the gas outlet, and one end of the gas outlet is communicated with the second connecting pipe.
The embodiment of the invention also provides a working method of the tar sampler in biomass gasification fuel gas, which comprises the following steps of:
Step 1, respectively adding isopropanol into a first solvent adding port and a second solvent adding port to enter a first gas washing section cavity and a second gas washing section cavity, starting a refrigerator, and enabling a coolant to circulate along the refrigerator, a second coolant pipeline, a second cooling jacket, a first connecting pipe, the first cooling jacket and the first coolant pipeline until the temperature of the isopropanol in the gas washing cavity is between minus 3 ℃ and 3 ℃;
step 2, introducing gas to be sampled, and sampling the sampled gas through a second gas washing section cavity, a glass filter, a first gas washing section cavity and a second connecting pipe of the gas inlet pipe in sequence to obtain clean gas;
Step 3, opening a first valve, and enabling liquid in the cavity of the second gas washing section to enter a solution storage by gravity; opening the air pump and adjusting the air path to reduce the air pressure of the solution storage, wherein the solution in the cavity of the first air washing section is sucked into the cavity of the second air washing section through the glass filter and then flows into the solution storage;
And 4, respectively adding a small amount of isopropanol from an air inlet pipe and a first solvent adding port, cleaning the air inlet pipe, the second gas washing section cavity and the first gas washing section cavity, collecting cleaning liquid, and entering a sampling solution storage.
The working method of the tar sampler in biomass gasification fuel gas provided by the embodiment of the invention has at least the following beneficial effects:
The temperature in the first gas washing section cavity and the second gas washing section cavity is maintained at about zero degree through the refrigerating mechanism, the sampling condition is mild, tar and clean gas can be sampled simultaneously through the clean gas collecting mechanism and the tar collecting mechanism, and the sampling efficiency is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a sampler according to an embodiment of the present invention;
FIG. 2 is a flow chart of gas flow for one operating state of the sampler of FIG. 1;
fig. 3 is a gas flow diagram of another operating condition of the sampler of fig. 1.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, if any, the description of the first, second, third, fourth, etc. is for the purpose of distinguishing between technical features only, and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Referring to fig. 1, a tar sampler in biomass gasification fuel gas comprises a gas washing mechanism, wherein the gas washing mechanism comprises a first gas washing section cavity 1, a glass filter 2 and a second gas washing section cavity 3 which are sequentially arranged from top to bottom, the first gas washing section cavity 1 and the second gas washing section cavity 3 are communicated through the glass filter 2, an air inlet pipe 4 communicated with the outside is arranged in the second gas washing section cavity 3, a first solvent inlet 5 is arranged on the first gas washing section cavity 1, a second solvent inlet 6 is arranged on the second gas washing section cavity 3, the first solvent inlet 5 and the second solvent inlet 6 can be opened and closed, and the sampler has good air tightness when closed; the refrigerating mechanism comprises a refrigerator 7, and a first cooling jacket 8 and a second cooling jacket 9 which are respectively sleeved on the first gas washing section cavity 1 and the second gas washing section cavity 3, wherein the first cooling jacket 8 and the second cooling jacket 9 are communicated through a first connecting pipe 10, and the first cooling jacket 8 and the second cooling jacket 9 are respectively communicated with the refrigerator 7 through a first refrigerant pipeline 11, a second refrigerant pipeline 12; the clean gas collection mechanism comprises a second connecting pipe 13 communicated with the first gas washing section cavity 1, wherein the second connecting pipe 13 is used for collecting gas in the first gas washing section cavity 1, and a first three-way valve 15, a second three-way valve 16, an air pump 17, a third three-way valve 18, a flow regulating valve 19, a rotameter 20, a pressure meter 21, a first thermometer 22, an accumulation flowmeter 23, a fourth three-way valve 24 and a clean gas outlet 25 are sequentially arranged on the second connecting pipe 13 from one end connected with the first gas washing section cavity 1 to the other end; the tar collection mechanism comprises a solution storage 14 communicated with the second scrubbing section cavity 3, and the solution storage 14 is used for collecting liquid in the first scrubbing section cavity 1 and the second scrubbing section cavity 3. The first gas washing section cavity 1, the second gas washing section cavity 3, the first cooling jacket 8 and the second cooling jacket 9 are made of quartz glass or stainless steel, the first connecting pipe 10 is made of silica gel hose, the valve is made of polytetrafluoroethylene, and the solution storage 14 is made of quartz glass.
Further, a third connecting pipe 26 is further included, two ends of the third connecting pipe 26 are respectively connected with the first three-way valve 15 and the flow regulating valve 19, and when the pressure is enough, the gas can be discharged through the third connecting pipe 26 without pumping air by the air pump 17.
Further, a fourth connection pipe 27 is further included, and both ends of the fourth connection pipe 27 are connected to the second three-way valve 16 and the solution reservoir 14, respectively. The third three-way valve 18 and the fourth three-way valve 24 are respectively connected with an evacuation pipeline 28, and when the clean fuel gas is sampled, the fourth three-way valve 24 is adjusted to enable the fuel gas to come out of the evacuation pipeline 28. The second refrigerant pipe 12 is provided with a second thermometer 30. The lower end of the second gas washing section cavity 3 is provided with a liquid outlet 31, the liquid outlet 31 is provided with a first valve 32, and one end of the liquid outlet 31 is communicated with the solution reservoir 14. The upper end of the first gas washing section cavity 1 is provided with a gas outlet 33, the gas outlet 33 is provided with a second valve 34, and one end of the gas outlet 33 is communicated with the second connecting pipe 13.
The inner diameters of the first gas washing section cavity 1 and the second gas washing section cavity 3 are 45mm, and the volumes of the first gas washing section cavity 1 and the second gas washing section cavity 3 are 250-400mL respectively. The solvent in the gas wash cavity was isopropanol and 200mL of each of the first and second gas wash section cavities was added to total 400mL. The glass filter 2 has a diameter of 60mm, and the filtration efficiency is recommended to use a filter satisfying the European standard G3 level, and the G2 level may be used if the pressure drop of the G3 level is too large. The glass filter 2 is replaceable; to ensure a sealing effect, the filter is connected to the first and second scrubber section chambers 1,3 by PTFE gaskets and clamped using conical clamps 29. The cooling liquid in the first cooling jacket 8 and the second cooling jacket 9 is made of NaCl solution or CaCl 2 solution or other low-corrosiveness liquid with solidifying point below-10 ℃. The refrigerator 7 can provide a cooling fluid of-5 ℃ for cooling, and the temperature of the cooling fluid in the cooling jacket is controlled between-3 ℃ and is optimal at 0 ℃. The air pump 17 should be oil-free and airtight with small pulsation; at an absolute pressure of 50kPa, the flow rate is not less than 1m 3/h; the indication range of the cumulative flow meter 23 is 0.1-1m 3/h or 100-1000L/h.
In the working process of the embodiment, 200mL of isopropanol is added into the first gas washing section cavity 1 and the second gas washing section cavity 3 respectively at the first solvent adding port 5 and the second solvent adding port 6 before sampling, the refrigerator 7 is started, and the coolant starts to circulate along the refrigerator 7, the second coolant pipeline 12, the second cooling jacket 9, the first connecting pipe 10, the first cooling jacket 8 and the first coolant pipeline 11 until the temperature of the isopropanol in the gas washing cavity reaches 0 ℃.
Referring to fig. 2, the valve in the adjusting device makes the biomass gasification gas pass through the air inlet pipe 4, the second gas washing section cavity 3, the glass filter 2, the first gas washing section cavity 1 and the second connecting pipe 13 in sequence, and after the clean gas sampling is completed, the fourth three-way valve 24 is adjusted, and the gas is discharged from the emptying pipeline 28 to the outdoor open area or ignited and burned. The flow rate of the fuel gas in the gas path is regulated by the flow regulating valve 19, so that the sampling process approaches to constant-speed sampling. During the sampling process, the flow, the temperature and the pressure of the sampled fuel gas are recorded through the integrating flowmeter 23, the first thermometer 22 and the pressure gauge 21. If the pressure in the gasification furnace is enough to finish sampling, the first three-way valve 15, the second three-way valve 16 and the third three-way valve 18 are adjusted, and the fuel gas can be directly sampled without passing through the air pump 17.
After the sampling is completed, referring to fig. 3, the sampling gas path of the first three-way valve 15 is adjusted, and the first valve 32 and the second solvent adding port 6 are opened, so that the solution in the cavity 3 of the second gas washing section naturally flows into the sampling solution storage 14; the second three-way valve 16 and the third three-way valve 18 are adjusted so that the gas sequentially passes through the fourth connecting pipe 27, the second three-way valve 16, the suction pump 17, the third three-way valve 18, and the evacuation pipe 28, and at this time, the first solvent addition port 5 is opened, so that the solution in the first gas washing stage chamber 1 is sucked into the sampling solution reservoir 14 through the glass filter 2. After the sampling is finished, a small amount of isopropanol can be added from the air inlet pipe 4 and the first solvent adding port 5 respectively, the air inlet pipe 4, the second gas washing section cavity 3 and the first gas washing section cavity 1 are cleaned, and cleaning liquid is collected and enters the sampling solution storage 14, so that the sampling result is more accurate. At the time of sampling, if it is found that the glass filter 2 is clogged with dust in the biomass gasification gas, the glass filter 2 can be replaced by opening the taper clamp 29. After the solution containing tar is collected, a rotary evaporator can be used for removing solvent isopropanol, so that tar in biomass gasification fuel gas can be obtained, and the tar can be analyzed by gas chromatography, balance and the like to obtain yield, components and the like.
According to the invention, the temperature in the first gas washing section cavity 1 and the second gas washing section cavity 3 is maintained at about 0 ℃ through the refrigerating mechanism, the sampling condition is mild, tar and clean gas can be sampled simultaneously through the clean gas collecting mechanism and the tar collecting mechanism, the sampling efficiency is improved, and in the actual sampling process, the gas production pipeline provided with the particulate filter is connected with the gas inlet pipe 4, so that the integrated sampling of particulate matters, tar and clean gas in biomass gasification gas can be completed; the device can continuously and uninterruptedly run, only the solvent is added and the sampling solution storage 14 is replaced in each sampling, the next sampling can be immediately carried out after the completion of one sampling, and the sampling is convenient, quick and efficient.
The embodiment of the invention also provides a working method of the tar sampler in biomass gasification fuel gas, which comprises the following steps of:
Step 1, respectively adding isopropanol into a first solvent adding port 5 and a second solvent adding port 6 to enter a first scrubbing section cavity 1 and a second scrubbing section cavity 3, starting a refrigerator 7, and enabling a coolant to circulate along the refrigerator 7, a second coolant pipeline 12, a second cooling jacket 9, a first connecting pipe 10, a first cooling jacket 8 and a first coolant pipeline 11 until the temperature of the isopropanol in the scrubbing section cavity is between-3 ℃ and 3 ℃;
step 2, introducing gas to be sampled, and sampling the sampled gas sequentially through a second gas washing section cavity 3, a glass filter 2, a first gas washing section cavity 1 and a second connecting pipe 13 of an air inlet pipe 4 to obtain clean gas;
step 3, opening a first valve 32, and enabling the liquid in the cavity 3 of the second gas washing section to enter the solution storage 14 by gravity; the air pump 17 is opened, the air passage is regulated to reduce the air pressure of the solution storage 14, and the solution in the first air washing section cavity 1 is sucked into the solution storage 14 through the glass filter 2 and the second air washing section cavity 3;
And 4, respectively adding a small amount of isopropanol from the air inlet pipe 4 and the first solvent adding port 5, cleaning the air inlet pipe 4, the second gas washing section cavity 3 and the first gas washing section cavity 1, and collecting cleaning liquid into the sampling solution storage 14.
In this embodiment, the gas path channel has good air tightness when the first solvent inlet 5 and the second solvent inlet 6 are closed, so that the air tightness of the sampler can be detected before the step 1, the air tightness is ensured, and the sampling precision is ensured. The temperature in the first gas washing section cavity 1 and the second gas washing section cavity 3 is maintained at about 0 ℃ through the refrigerating mechanism, the sampling condition is mild, tar and clean gas can be sampled simultaneously through the clean gas collecting mechanism and the tar collecting mechanism, and the sampling efficiency is improved.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Claims (7)
1. A tar sampler in biomass gasification gas, comprising:
the gas washing mechanism comprises a first gas washing section cavity (1), a glass filter (2) and a second gas washing section cavity (3) which are sequentially arranged from top to bottom, wherein the first gas washing section cavity (1) is communicated with the second gas washing section cavity (3) through the glass filter (2), a gas inlet pipe (4) communicated with the outside is arranged in the second gas washing section cavity (3), a first solvent adding port (5) is arranged on the first gas washing section cavity (1), and a second solvent adding port (6) is arranged on the second gas washing section cavity (3);
The refrigeration mechanism comprises a refrigerator (7), and a first cooling jacket (8) and a second cooling jacket (9) which are respectively sleeved on the first gas washing section cavity (1) and the second gas washing section cavity (3), wherein the first cooling jacket (8) and the second cooling jacket (9) are communicated through a first connecting pipe (10), and the first cooling jacket (8) and the second cooling jacket (9) are respectively communicated with the refrigerator (7) through a first refrigerant pipeline (11), a second refrigerant pipeline (12);
the clean gas collection mechanism comprises a second connecting pipe (13) communicated with the first gas washing section cavity (1), and the second connecting pipe (13) is used for collecting gas in the first gas washing section cavity (1);
The tar collection mechanism comprises a solution storage (14) communicated with the second gas washing section cavity (3), and the solution storage (14) is used for collecting liquid in the first gas washing section cavity (1) and the second gas washing section cavity (3);
A first three-way valve (15), a second three-way valve (16), an air pump (17), a third three-way valve (18), a flow regulating valve (19), a rotameter (20), a pressure gauge (21), a first thermometer (22), an accumulation flowmeter (23), a fourth three-way valve (24) and a clean gas outlet (25) are sequentially arranged on the second connecting pipe (13) from one end connected with the first gas washing section cavity (1) to the other end;
The sampler also comprises a fourth connecting pipe (27), and two ends of the fourth connecting pipe (27) are respectively connected with the second three-way valve (16) and the solution reservoir (14);
The upper end and the lower end of the glass filter (2) are respectively provided with a gasket, and the first gas washing section cavity (1), the second gas washing section cavity (3), the glass filter (2) and the gaskets are clamped and fixed through conical clamps (29).
2. The biomass gasification fuel gas tar sampler as set forth in claim 1, wherein: the three-way valve further comprises a third connecting pipe (26), and two ends of the third connecting pipe (26) are respectively connected with the first three-way valve (15) and the flow regulating valve (19).
3. The biomass gasification fuel gas tar sampler as set forth in claim 1, wherein: the fourth three-way valve (24) and the third three-way valve (18) are respectively connected with an evacuation pipeline (28).
4. The biomass gasification fuel gas tar sampler as set forth in claim 1, wherein: and a second thermometer (30) is arranged on the second refrigerant pipeline (12).
5. The biomass gasification fuel gas tar sampler as set forth in claim 1, wherein: the lower end of the second gas washing section cavity (3) is provided with a liquid outlet (31), the liquid outlet (31) is provided with a first valve (32), and one end of the liquid outlet (31) is communicated with the solution storage (14).
6. The biomass gasification fuel gas tar sampler as set forth in claim 1, wherein: the upper end of the first gas washing section cavity (1) is provided with a gas outlet (33), the gas outlet (33) is provided with a second valve (34), and one end of the gas outlet (33) is communicated with the second connecting pipe (13).
7. A method for operating a tar sampler in biomass gasification fuel gas, based on the sampler according to any one of claims 1 to 6, comprising:
Step 1, respectively adding isopropanol into a first solvent adding port (5) and a second solvent adding port (6) to enter a first gas washing section cavity (1) and a second gas washing section cavity (3), starting a refrigerator (7), and circulating a coolant along the refrigerator (7), a second coolant pipeline (12), a second cooling jacket (9), a first connecting pipe (10), a first cooling jacket (8) and a first coolant pipeline (11) until the temperature of the isopropanol in the gas washing cavity is between-3 ℃ and 3 ℃;
Step 2, introducing gas to be sampled, and sampling the sampled gas sequentially through a second gas washing section cavity (3), a glass filter (2), a first gas washing section cavity (1) and a second connecting pipe (13) of an air inlet pipe (4) to obtain clean fuel gas;
Step 3, opening a first valve (32), enabling liquid in the second gas washing section cavity (3) to enter the solution storage (14) by gravity, opening an air pump (17) and adjusting an air path to reduce the air pressure of the solution storage (14), and enabling the solution in the first gas washing section cavity (1) to be sucked into the solution storage (14) through the glass filter (2) and the second gas washing section cavity (3);
And step 4, respectively adding a small amount of isopropanol from the air inlet pipe (4) and the first solvent adding port (5), cleaning the air inlet pipe (4), the second gas washing section cavity (3) and the first gas washing section cavity (1), collecting cleaning liquid, and entering the sampling solution storage (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910929434.2A CN110608927B (en) | 2019-09-27 | 2019-09-27 | Tar sampler in biomass gasification fuel gas and working method thereof |
Applications Claiming Priority (1)
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| CN2589963Y (en) * | 2002-12-20 | 2003-12-03 | 中国科学院广州能源研究所 | Visible biological mass tar fast collecting equipment |
| JP2009014644A (en) * | 2007-07-09 | 2009-01-22 | Takuma Co Ltd | Method for analyzing tar in gas generated in gasification furnace and its system |
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| CN102175494B (en) * | 2011-01-19 | 2013-01-16 | 华北电力大学 | Portable biomass gasified gas tar oil sampling device |
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