CN108362530A - A kind of high humidity gas liquid-solid phase object sampling apparatus and the method for sampling - Google Patents
A kind of high humidity gas liquid-solid phase object sampling apparatus and the method for sampling Download PDFInfo
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- CN108362530A CN108362530A CN201810248969.9A CN201810248969A CN108362530A CN 108362530 A CN108362530 A CN 108362530A CN 201810248969 A CN201810248969 A CN 201810248969A CN 108362530 A CN108362530 A CN 108362530A
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- 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
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- 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
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- 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
- G01N2001/222—Other features
- G01N2001/2223—Other features aerosol sampling devices
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- 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
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Abstract
The present invention relates to a kind of high humidity gas liquid-solid phase object sampling apparatus and the method for samplings.It is desirable to a kind of device and method fully sampled to coal-burning power plant's exterior liquid solid-phase contaminants.The present invention includes sampling head, heat tracing sampling pipe, sample collecting system and sampler, and sampling head is connect with heat tracing sampling pipe, and heat tracing sampling pipe is connect with sample collecting system and sampler respectively, and sample collecting system is connect with sampler；Sampling head includes that Pitot tube, sampling mouth and filter cylinder, Pitot tube are connect with heat tracing sampling pipe, and sampling mouth is connect with filter cylinder, and filter cylinder is connect with heat tracing sampling pipe；Sample collecting system includes level-one receiving flask, two level receiving flask, three-level receiving flask and drying device, level-one receiving flask, two level receiving flask, three-level receiving flask and drying device are sequentially connected, heat tracing sampling pipe is connect with level-one receiving flask, and drying device is connect with sampler.The present invention is simple and convenient to operate as a kind of full ingredient sampling technique of high humidity gas liquid-solid phase object, apparatus structure, is highly practical.
Description
Technical field
The present invention relates to technical field of air pollution control, more particularly to a kind of high humidity gas liquid-solid phase object sampling apparatus and
The method of sampling.
Background technology
In recent years, China's haze weather takes place frequently, and causes national attention extensively.One kind is studies have shown that sulfate is heavily contaminated
The major driving factor that weather is formed, airborne fine particulate matter PM2.5In, sulfuric acid salt quality accounting is up to 20% or more.With PM2.5It is dirty
Dye degree increases, and sulfate is PM2.5In with respect to proportion rise most fast ingredient, sulfate Source Study is the pass of haze research
One of key problem.During heavily contaminated, sulfate is mainly by SO2And NO2" the particulate matter combination water " being dissolved in air, particulate matter
Refer to PM in conjunction with water2.5Adsorbed moisture is deliquesced under the higher environment of relative humidity.Classics of the another kind based on other areas are big
Gasification theory thinks that sulfate formation leads in cloud water environment since the liquid water content in cloud is far above particulate matter combination water
Thousand times or more often are higher by, sulfate reaction of formation of the reaction compared to Yun Shuizhong in particulate matter combination water is compared, and can be ignored.
Above two result of study difference is larger, but the formation of common ground having the same, i.e. Sulfate Ion In The Atmosphere needs water
Environment.Coal-burning power plant carries out minimum discharge transformation, and Limestone-gypsum Wet Flue Gas Desulfurization Process technique is wide as classical flue gas desulfurization technique
General application, in SO2It achieves noticeable achievement in emission reduction.But heat smoke is changed into saturation wet flue gas after wet desulphurization device, drains into outside
In air, in certain area, atmospheric humidity is added somewhat to, if having an impact still to the formation of Sulfate Ion In The Atmosphere
Without final conclusion.Therefore, the influence after studying coal-fired power plant's minimum discharge to atmospheric environment need to carry out its discharged gas fume sampling and grind
Study carefully.
Currently, the sampling monitoring device category for coal-burning power plant's atmosphere pollution ingredient is various, such as SO2、NOX, flue dust,
The sampling monitorings equipment such as droplet is sampled both for certain specific pollutant, as application No. is 201610587584.6
Chinese patent has not been reported coal-burning power plant's fully sampled method of exterior liquid solid-phase contaminants, is only limitted to limit to the analysis of its ingredient
Index is arranged, other rare people's concerns of harmful rather than limit row's index.
Invention content
It is an object of the invention to overcome above-mentioned deficiency existing in the prior art, and provide a kind of high humidity of reasonable design
Gas liquid solid formation sampling apparatus and the method for sampling.
Technical solution is used by the present invention solves the above problems：A kind of high humidity gas liquid-solid phase object sampling apparatus,
It is characterized in that, including sampling head, heat tracing sampling pipe, sample collecting system and sampler, the sampling head connects with heat tracing sampling pipe
It connects, the heat tracing sampling pipe is connect with sample collecting system and sampler respectively, and the sample collecting system is connect with sampler；
The sampling head includes that Pitot tube, sampling mouth and filter cylinder, the Pitot tube are connect with heat tracing sampling pipe, the sampling mouth and filter cylinder
Connection, the filter cylinder are connect with heat tracing sampling pipe；The sample collecting system includes level-one receiving flask, two level receiving flask, three-level
Receiving flask and drying device, the level-one receiving flask, two level receiving flask, three-level receiving flask and drying device are sequentially connected, described
Heat tracing sampling pipe is connect with level-one receiving flask, and the drying device is connect with sampler.It is reasonable in design, it can be to high-humidity gas fume
Etc. liquid-solid phases pollutant carry out sampling analysis, it is highly practical.
Furthermore, the drying device includes air inlet, gas outlet, partition board, gas channel, drier and vapor
Verifying attachment；The air inlet and gas outlet are arranged at the bottom of drying device, and the air inlet is located at the one of drying device
Side, the gas outlet are located at the other side of drying device, and the air inlet is connect with three-level receiving flask, the gas outlet and sampling
Device connects；The partition board is arranged in the inside of drying device, and the gas channel is arranged on the top of partition board；The drier and
Vapor verifying attachment is respectively positioned in drying device, and the drier is located at the lower section of gas channel, and the vapor examines dress
Setting in the end of gas outlet.Drying device is for fully dry gas sampled, and in drying process, gas is arranged from three-level receiving flask
Entered in drying device by air inlet after going out, gas carries out primary drying by drier, passes through gas channel later and passes through
Drier carries out redrying；Finally, gas is entered in sampler by vapor verifying attachment and by gas outlet.Vapor
Whether the vapor that verifying attachment is used to verify in flue gas is fully absorbed by drier.If vapor verifying attachment does not show face
Color, then the vapor in flue gas be completely absorbed；If display color, drying device is needed to change, and increases in drying device and does
The amount of drying prescription, it is ensured that the vapor in flue gas is completely absorbed.
Furthermore, it is provided with porous glass plate in the three-level receiving flask.For collect the liquid phase object in high humidity gas,
Aerosol and organic matter etc..
Furthermore, temperature control device is provided in the sample collecting system, the temperature control device is for controlling sample
The temperature of collection system, the temperature control device have the function of subregion temperature control, ranging from -20 DEG C ~ 100 DEG C of temperature control.Temperature control fills
The corresponding regional temperature of three receiving flasks can be adjusted separately by setting, and increase the collecting amount of condensed water.
A kind of method of sampling of high humidity gas liquid-solid phase object sampling apparatus as described above, which is characterized in that the sampling
The step of method, is as follows：
A, each instrument and equipment is connected, when sampling, startup power supply, heat tracing sampling pipe, temperature control device and sampler start
Work opens sample collecting system, adjusts the temperature of sample collecting system as needed, set the operating parameter of sampler；
B, the sampled mouth of high humidity gas enters sampling head, and particulate matter is intercepted by filter cylinder, and high humidity gas enters heat tracing through filter cylinder and adopts
Sample pipe；
C, heat tracing sampling pipe keeps high humidity gas not condense, and later, high humidity gas enters sample collecting system；
D, temperature is adjusted the temperature condensed to suitable high humidity gas by temperature control device, since the temperature difference is big, the high moisture of vaporous
Body condenses in level-one receiving flask, collects liquid phase object, and gas is received by continuing to condense in two level receiving flask after level-one receiving flask
Collect liquid phase object, subsequently into three-level receiving flask, liquid phase object, aerosol and organic matter are collected in condensation, and vapor is in insatiable hunger in gas
And state, into drying device；
E, the drier filled in drying device further absorbs the vapor in gas, is examined according to aft mounted vapor
Device judges whether vapor is absorbed complete by drier in gas；
F, the gas after drying enters sampler, measures sample gas dry state volume；
G, after sampling quantity reaches requirement, sampling terminates, and records data；
H, sampling step repeats a ~ g.
Furthermore, in sampling process, gas dynamic pressure, static pressure are measured using Pitot tube, according to related Gas Parameters meter
Calculate gas flow rate.High humidity gas enters sampler by Pitot tube, measures the relevant parameter of gas.
It is easy to operate, fully sampled, complete analysis can be carried out to coal-burning power plant's exterior liquid solid-phase contaminants, to high-humidity gas fume ingredient
Analysis be not limited only to limit row's index, other harmful rather than limit row's indexs can also be analyzed, Value of Science ＆ Technology is high.
Compared with prior art, the present invention haing the following advantages and effect：1, complete as a kind of high humidity gas liquid-solid phase object
Ingredient sampling technique fills up domestic technique blank；2, device simple structure, technology maturation, at low cost, easy to operate, complete group
Dress；3, Value of Science ＆ Technology is high, highly practical, has extensive application value.
Description of the drawings
Fig. 1 is the overall structure diagram of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of level-one receiving flask and two level receiving flask in the embodiment of the present invention.
Fig. 3 is the structural schematic diagram of three-level receiving flask in the embodiment of the present invention.
Fig. 4 is the structural schematic diagram of drying device in the embodiment of the present invention.
In figure：Sampling head 1, Pitot tube 1-1, sampling mouth 1-2, filter cylinder 1-3, heat tracing sampling pipe 2, sample collecting system 3, one
Grade receiving flask 3-1, two level receiving flask 3-2, three-level receiving flask 3-3, drying device 3-4, air inlet 3-4-1, gas outlet 3-4-2,
Partition board 3-4-3, gas channel 3-4-4, drier 3-4-5, vapor verifying attachment 3-4-6, sampler 4.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited in following embodiments.
Embodiment.
Referring to Fig. 1 to Fig. 4, a kind of high humidity gas liquid-solid phase object sampling apparatus, including sampling head 1, heat tracing sampling pipe 2, sample
Product collection system 3 and sampler 4, sampling head 1 are connect with heat tracing sampling pipe 2, heat tracing sampling pipe 2 respectively with sample collecting system 3
It is connected with sampler 4, sample collecting system 3 is connect with sampler 4.
Sampling head 1 includes Pitot tube 1-1, samples mouth 1-2 and filter cylinder 1-3, and Pitot tube 1-1 connect with heat tracing sampling pipe 2, adopts
Sample mouth 1-2 is connect with filter cylinder 1-3, and filter cylinder 1-3 is connect with heat tracing sampling pipe 2；Sample collecting system 3 include level-one receiving flask 3-1,
Two level receiving flask 3-2, three-level receiving flask 3-3 and drying device 3-4, level-one receiving flask 3-1, two level receiving flask 3-2, three-level are collected
Bottle 3-3 and drying device 3-4 is sequentially connected, and heat tracing sampling pipe 2 is connect with level-one receiving flask 3-1, drying device 3-4 and sampler
4 connections.
Drying device 3-4 includes air inlet 3-4-1, gas outlet 3-4-2, partition board 3-4-3, gas channel 3-4-4, drier
3-4-5 and vapor verifying attachment 3-4-6；Air inlet 3-4-1 and gas outlet 3-4-2 is arranged at the bottom of drying device 3-4,
Air inlet 3-4-1 is located at the side of drying device 3-4, and gas outlet 3-4-2 is located at the other side of drying device 3-4, air inlet 3-
4-1 is connect with three-level receiving flask 3-3, and gas outlet 3-4-2 is connect with sampler 4；Partition board 3-4-3 is arranged drying device 3-4's
The inside of drying device 3-4 is divided into two parts by inside, partition board 3-4-3, wherein and air inlet 3-4-1 is connected to a part,
Gas outlet 3-4-2 is connected to another part；Gas channel 3-4-4 is arranged on the top of partition board 3-4-3, for gas from one
Part enters another part；Drier 3-4-5 and vapor verifying attachment 3-4-6 are respectively positioned in drying device 3-4, drier
3-4-5 is located at the lower section of gas channel 3-4-4, is used for abundant dry gas；Vapor verifying attachment 3-4-6 is located at gas outlet 3-
The end of 4-2, for examining gas whether fully dry.
Level-one receiving flask 3-1 and two level receiving flask 3-2 is used to collect the condensed water in high humidity gas, three-level receiving flask 3-3
For collecting the liquid phase object in high humidity gas, aerosol and organic matter etc., porous glass plate is provided in three-level receiving flask 3-3.
Temperature control device is provided in sample collecting system 3, temperature control device is used to control the temperature of sample collecting system 3, temperature
Control device has the function of subregion temperature control, ranging from -20 DEG C ~ 100 DEG C of temperature control.
A kind of the step of method of sampling of high humidity gas liquid-solid phase object sampling apparatus as described above, the method for sampling, is as follows：
A, each instrument and equipment is connected, when sampling, startup power supply, heat tracing sampling pipe 2, temperature control device and sampler 4 are opened
Beginning work opens sample collecting system 3, adjusts the temperature of sample collecting system 3 as needed, set the operation of sampler 4
Parameter；
B, the sampled mouth 1-2 of high humidity gas enters sampling head 1, and particulate matter is intercepted by filter cylinder 1-3, and high humidity gas penetrates filter cylinder 1-3
Into heat tracing sampling pipe 2；
C, heat tracing sampling pipe 2 keeps high humidity gas not condense, and later, high humidity gas enters sample collecting system 3；
D, temperature is adjusted the temperature condensed to suitable high humidity gas by temperature control device, since the temperature difference is big, the high moisture of vaporous
Body condenses in level-one receiving flask 3-1, collects liquid phase object, gas after level-one receiving flask 3-1 in two level receiving flask 3-2 by relaying
Continuous condensation, collects liquid phase object, subsequently into three-level receiving flask 3-3, condenses and collects liquid phase object, aerosol and organic matter, in gas
Vapor is in unsaturated state, into drying device 3-4；
E, the drier 3-4-5 filled in drying device 3-4 further absorbs the vapor in gas, according to aft mounted water
Steam verifying attachment 3-4-6 judges whether vapor is absorbed complete by drier 3-4-5 in gas；
F, the gas after drying enters sampler 4, measures sample gas dry state volume；
G, after sampling quantity reaches requirement, sampling terminates, and records data；
H, sampling step repeats a ~ g.
In sampling process, gas dynamic pressure, static pressure are measured using Pitot tube 1-1, gas stream is calculated according to related Gas Parameters
Speed.
Heat tracing sampling pipe 2 ensures that high-humidity gas fume does not condense during heating, and heats filter cylinder 1-3, is allowed to entire
Drying is kept in sampling process.
Whether the vapor that vapor verifying attachment 3-4-6 is used to verify in flue gas is fully absorbed by drier 3-4-5.If
Vapor verifying attachment 3-4-6 not display colors, then the vapor in flue gas be completely absorbed；If display color needs to change
Drying device 3-4, and increase the amount of drier 3-4-5 in drying device 3-4, it is ensured that the vapor in flue gas is completely absorbed.
Although the present invention is disclosed as above with embodiment, it is not limited to protection scope of the present invention, any to be familiar with
The technical staff of this technology changes and retouches made by without departing from the spirit and scope of the invention, should all belong to this hair
Bright protection domain.
Claims (6)
1. a kind of high humidity gas liquid-solid phase object sampling apparatus, which is characterized in that including sampling head, heat tracing sampling pipe, sample collection
System and sampler, the sampling head are connect with heat tracing sampling pipe, the heat tracing sampling pipe respectively with sample collecting system and adopt
Sample device connects, and the sample collecting system is connect with sampler；The sampling head includes Pitot tube, samples mouth and filter cylinder, described
Pitot tube is connect with heat tracing sampling pipe, and the sampling mouth is connect with filter cylinder, and the filter cylinder is connect with heat tracing sampling pipe；The sample
Collection system includes level-one receiving flask, two level receiving flask, three-level receiving flask and drying device, and the level-one receiving flask, two level are received
Collection bottle, three-level receiving flask and drying device are sequentially connected, and the heat tracing sampling pipe is connect with level-one receiving flask, the drying device
It is connect with sampler.
2. high humidity gas liquid-solid phase object sampling apparatus according to claim 1, which is characterized in that the drying device includes
Air inlet, gas outlet, partition board, gas channel, drier and vapor verifying attachment；The air inlet and gas outlet are arranged at
The bottom of drying device, the air inlet are located at the side of drying device, and the gas outlet is located at the other side of drying device, institute
It states air inlet to connect with three-level receiving flask, the gas outlet is connect with sampler；The partition board is arranged in the inside of drying device,
The gas channel is arranged on the top of partition board；The drier and vapor verifying attachment are respectively positioned in drying device, described
Drier is located at the lower section of gas channel, and the vapor verifying attachment is located at the end of gas outlet.
3. high humidity gas liquid-solid phase object sampling apparatus according to claim 1, which is characterized in that in the three-level receiving flask
It is provided with porous glass plate.
4. high humidity gas liquid-solid phase object sampling apparatus according to claim 1, which is characterized in that the sample collecting system
In be provided with temperature control device, the temperature control device is used to control the temperature of sample collecting system, and the temperature control device has subregion
The function of temperature control, ranging from -20 DEG C ~ 100 DEG C of temperature control.
5. a kind of sampling side of high humidity gas liquid-solid phase object sampling apparatus as claimed in any one of claims 1-4
Method, which is characterized in that the step of method of sampling is as follows：
A, each instrument and equipment is connected, when sampling, startup power supply, heat tracing sampling pipe, temperature control device and sampler start
Work opens sample collecting system, adjusts the temperature of sample collecting system as needed, set the operating parameter of sampler；
B, the sampled mouth of high humidity gas enters sampling head, and particulate matter is intercepted by filter cylinder, and high humidity gas enters heat tracing through filter cylinder and adopts
Sample pipe；
C, heat tracing sampling pipe keeps high humidity gas not condense, and later, high humidity gas enters sample collecting system；
D, temperature is adjusted the temperature condensed to suitable high humidity gas by temperature control device, since the temperature difference is big, the high moisture of vaporous
Body condenses in level-one receiving flask, collects liquid phase object, and gas is received by continuing to condense in two level receiving flask after level-one receiving flask
Collect liquid phase object, subsequently into three-level receiving flask, liquid phase object, aerosol and organic matter are collected in condensation, and vapor is in insatiable hunger in gas
And state, into drying device；
E, the drier filled in drying device further absorbs the vapor in gas, is examined according to aft mounted vapor
Device judges whether vapor is absorbed complete by drier in gas；
F, the gas after drying enters sampler, measures sample gas dry state volume；
G, after sampling quantity reaches requirement, sampling terminates, and records data；
H, sampling step repeats a ~ g.
6. the method for sampling of high humidity gas liquid-solid phase object sampling apparatus according to claim 5, which is characterized in that sampled
Cheng Zhong, gas dynamic pressure, static pressure are measured using Pitot tube, and gas flow rate is calculated according to related Gas Parameters.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163943A (en) * | 2018-09-25 | 2019-01-08 | 中国科学院广州地球化学研究所 | A kind of no matrix interference type sampler |
| CN110118709A (en) * | 2019-04-17 | 2019-08-13 | 华电电力科学研究院有限公司 | One kind can the online cascade sampling measuring system and method for trap particulate matter |
| CN110220755A (en) * | 2019-07-24 | 2019-09-10 | 福建省锅炉压力容器检验研究院 | A kind of stationary source sulfureous in flue gas acid mist sample devices |
| CN111982424A (en) * | 2020-08-21 | 2020-11-24 | 浙江大学 | Sneeze leakage prevention detection device and method for mask breather valve |
| CN112504774A (en) * | 2020-12-29 | 2021-03-16 | 武汉区域气候中心 | Wireless remote control portable greenhouse gas bottle sampling method and sampling device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111982424A (en) * | 2020-08-21 | 2020-11-24 | 浙江大学 | Sneeze leakage prevention detection device and method for mask breather valve |
| CN111982424B (en) * | 2020-08-21 | 2021-05-07 | 浙江大学 | Sneeze leakage prevention detection device and method for mask breather valve |
| CN112504774A (en) * | 2020-12-29 | 2021-03-16 | 武汉区域气候中心 | Wireless remote control portable greenhouse gas bottle sampling method and sampling device thereof |
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