CN207636364U - A kind of flue gas particles classification dilution sampling device - Google Patents
A kind of flue gas particles classification dilution sampling device Download PDFInfo
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- CN207636364U CN207636364U CN201721442615.5U CN201721442615U CN207636364U CN 207636364 U CN207636364 U CN 207636364U CN 201721442615 U CN201721442615 U CN 201721442615U CN 207636364 U CN207636364 U CN 207636364U
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- flue gas
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- cyclone separator
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Abstract
The utility model provides a kind of flue gas particles classification dilution sampling device, and flue gas particles classification dilution sampling device is mainly made of components such as cyclone separator, sampling gun barrel, temp probe, gas mixing device, filter, particulate cascade collector, control unit and vacuum pumps.At the temperature of setting and charge flow rate, analyzed organic pollution gas and particle in flue gas remove 10 μm or more particles into cyclone dust removal is crossed；With after the air for filtering and preheating mixes, gas flows through the powder collection that cascade sampling pipe contains analyzed target contaminant.The utility model is simple in structure, easy to operate, the analysis and measurement of organic particulate matter suitable for waste incineration, steel and cement production discharge flue gas.
Description
Technical field
The utility model belongs to environmental analysis field, relates generally to the target analytes sampling in source emission flue, all
Such as the organic pollution in dioxin, cement or the steel manufacture process flue gas emission in flue gas of refuse burning.
Background technology
Flue gas particles are an important sources of atmospheric pollution.In order to more accurately assess the release of particulate matter in flue gas
Feature needs the accuracy and reliability of strict guarantee flue gas particles sampling process, however China has no stationary source flue gas at present
The relevant criterion of particle sampling.It is discharged into that the dilution after air is cooling and the processes such as condensation to preferably simulate flue gas, one
As flue gas particles are sampled using dilution method, International Organization for standardization (ISO, 2013) using dilution sampling as fix
Standard method (the ISO 25597 of source emission PM2.5 tests:2013).
Dilution method sampling is a relatively complicated process, to mixed gas mode, flow control and the temperature of equipment
Adjust etc. suffers from stringent technology requirement.Currently, having the diluter and sample devices of some commercializations, Dekati
DI-1000 diluters are a at low cost, simple structure and easy-operating instrument, and Dekati diluters pass through two-stage " double dilutions
Device " can be effectively prevented from the formation that condensation finds and eliminates nucleus.However, it (is only 1 that the dilution of Dekati diluters is relatively low:
8), and it only has the function of that dilution, when use also need a series of corollary equipments.(, also a TSI similar with Dekati
Rotating disc type heat dilution device, which also has the function of flue gas particles aerosol dilution, but it is expensive, more suitable for vapour
The sampling, dilution and control of particle in tail gas and combustion process, especially in terms of particle size analyzer and counting
Using.) DP7900 dilution probes are then collection samplings and are diluted in integrated equipment, which can dilute flue gas, prevent water vapour
With the condensation of acid, but the equipment is actually only capable of being diluted flue gas, cannot achieve the dilution of flue gas particles.
Utility model device is dilution, sampling integration apparatus, can simultaneously realize to flue gas and flue gas particles
Dilution, condense in the sampling process that can effectively disappear and condensation phenomenon, the equipment have it is simple in structure (small, compact etc.),
It is easy to operate, the advantages that air-flow mixing uniformity is good, loss of the particulate matter in sampler is small, thinner ratio is adjustable.This practicality is new
Type device is using injection dilution mode.Thinner ratio can be 1:100 to 1:It is adjusted in 1 range.Utility model device meets flue gas
The ISO 25597 of particle sampling:2013 relevant criterion (ISO 25597:2013 clear thinner ratios and residence time difference are not
Gas temperature and relative humidity less than 20 times and 10s, and after diluting are respectively lower than 42 DEG C and 70%).
Utility model content
The technical issues of the utility model is solved is to provide a kind of flue gas particles classification dilution sampling device.
A kind of flue gas particles classification dilution sampling device, which is characterized in that including cyclone separator 1, sampling gun barrel 2, mix
Device of air 4, filter 5, particulate cascade collector 6 and vacuum pump 8；
Gas mixing device 4 is the airtight chamber surrounded by insulating cover 4e, in airtight chamber be equipped with threeway 4a, heat exchanger tube
4b, temperature sensor A 4c, heating element B 4d；
The gas outlet of the cyclone separator 1 with sampling gun barrel 2 air inlet be connected, sample gun barrel 2 gas outlet and
The first interface connection of threeway 4a, the second interface of threeway 4a are connected with one end of heat exchanger tube 4b in gas mixing device 4, threeway 4a
Third interface be connected with the air inlet of particulate cascade collector 6；The other end of heat exchanger tube 4b connects with the outlet of filter 5
It connects, the air inlet of filter 5 concatenates a flow controller A 7a and communicated with air；
6 gas outlet of particulate cascade collector is connected after concatenating a flow controller B 7e with 8 air inlet of vacuum pump.
The flue gas particles are classified dilution sampling device, which is characterized in that the gas outlet of cyclone separator 1 and sampling gun
The air inlet of pipe 2 connects to form sealing with cutting ferrule by nut, cyclone separator 1 be the solid particle that can remove >=10 μm, by
The part that stainless steel or titanium are process.
The flue gas particles are classified dilution sampling device, which is characterized in that are equipped on the outside of 1 air inlet of cyclone separator
The temperature measuring point of temp probe 3, temp probe 3 is arranged in 1 inlet charge gas circuit of cyclone separator or air inlet, measures flue gas
Temperature is T1, 1 inlet volume flow velocity of cyclone separator is Q1。
The flue gas particles are classified dilution sampling device, which is characterized in that sample outer barrel of the gun barrel 2 by hollow tubular
2a and the concentrically nested settings of inner tube 2b, outer barrel and outer wall of inner tube face are sampling gun barrel close to the closed company in the side of cyclone separator
It connects, outer barrel and inner tube are close to one end of gas mixing device 4 respectively with the outside wall surface airtight connection of insulating cover 4e, and inner tube is close to rotation
Air inlet of the one end of wind separator as sampling gun barrel, the confined space between outer barrel 2a and inner tube 2b are provided with heating unit
Around being attached on inner tube 2b outer walls, temperature sensor B 2d are located at part A 2c and temperature sensor B 2d, heating element A 2c
Between outer barrel 2a and heating element A 2c so that inner tube 2b keeps the temperature T of setting2, 0-300 DEG C of setting range, and T2≥ T1。
The flue gas particles are classified dilution sampling device, which is characterized in that gas mixing device 4 by threeway 4a inner tube
Road, heat exchanger tube 4b, temperature sensor A 4c, heating element B 4d and insulating cover 4e compositions, 4 internal temperature of gas mixing device are kept
The temperature T of setting3, 0-300 DEG C of setting range, and T3≥T1.The flue gas particles are classified dilution sampling device, and feature exists
In filter 5 is hollow glass cylinder, and inside is described to have filled with the material to target analytes with suction-operated
The material of suction-operated be polyurethane foam (PUF), activated carbon, XAD resin it is one or two kinds of more than.
The flue gas particles are classified dilution sampling device, which is characterized in that a control unit 7, includes flow control
Device A 7a, temperature controller A 7b, temperature controller B 7c, the temperature controller C 7d being connect by conducting wire with temp probe 3
With flow controller B 7e, it is Q that flow controller A 7a control atmospheric environments, which flow into the volume flow of air in filter 5,2,
The gas volume flow velocity that flow controller B 7e controls flow into vacuum pump is Q3, under the premise of ensureing system pipeline air-tightness,
Meet Q1+Q 2=Q3, set Q2And Q3Make Q1And Q3Ratio k be 0.01≤k≤1, i.e. k=(Q3-Q2)/Q3；Flow
Controller A is connected by pipeline with a bite of filter 5, and another mouth is connected with air；Temperature controller A and 3 phase of temp probe
Even；Temperature controller B 7c in gas mixing device temperature sensor A 4c and heating element B 4d be respectively connected with；Temperature controls
Device C is separately connected with the temperature sensor B 2d and heating element A 2c sampled in gun barrel.
The flue gas particles are classified dilution sampling device, which is characterized in that the heat exchanger tube 4b in gas mixing device is rectangular
Wave or the shape of spiral juxtaposition arrangement, are placed with temperature sensor A 4c, on heat exchanger tube 4b tube walls between pipe wall of heat exchange pipe
Heating element B 4d are pasted with, the case surface of gas mixing device 4 is pasted with insulating cover 4e.
The operating method of the flue gas particles classification dilution sampling device, which is characterized in that after connecting all parts,
It checks that the leakproofness between all parts, cyclone separator 1 are inserted into sampling gun barrel 2 in flue thieff hatch, blocks sampling gun
Gap between pipe and thieff hatch；Control heating system makes inner tube 2b keep the temperature T of setting2, 4 inside temperature of gas mixing device
Degree keeps the temperature T of setting3, temperature opens vacuum pump after stablizing, and setting flow controller A 7a and flow controller B 7e make
It is Q to obtain gas flow2And Q3, start to acquire particulate matter in flue gas；By absorption in particulate cascade collector 6 after a period of time
Material taking-up is analyzed.
Such as target analytes be dioxin when, sorbing material be polyurethane foam (PUF)
The utility model has the beneficial effects that：The utility model proposes flue gas particles be classified dilution sampling device, have
It is reliable and stable that double fluid gauge controls gas flow rate and collected gas dilution ratio, gatherer process in gas mixing device；With dilution
Air preheat function, mixed gas keep the functions such as the temperature value of setting when being collected.The utility model is simple in structure, easy to operate,
It is measured with the analysis of organic matter the flue gases such as waste incineration suitable for steel, manufacture of cement.
Description of the drawings
Fig. 1 is the connection diagram of the particulate cascade dilution sampling device of the utility model.Wherein, 1 cyclone separator；2
To sample gun barrel；3 it is temp probe, 4 be gas mixing device, 5 be filter, 6 is particulate cascade collector, 7 units in order to control,
8 be vacuum pump, and 2a is outer barrel, and 2b is inner tube, and 2c is heating element A, and 2d is temperature sensor B；4a is threeway, and 4b is heat exchange
Pipe, 4c are temperature sensor A, and 4d is that heating element B, 4e are insulating cover；7a is that flow monitor A, 7b are temperature controller
A, 7c are temperature controller B, and 7d is temperature controller C, and 7e is flow controller B.
Specific implementation mode
Embodiment 1
As shown in Fig. 1, cyclone separator 1, sampling gun barrel 2, gas mixing device 4, filter 5, particulate cascade collector 6
It is to design and produce component.Cyclone separator 1 is the part of stainless steel or titanium matter, drum diameter 50mm, on circumference is tangential
Equipped with air inlet, air inlet is connected through a screw thread suction nozzle, can replace different diameter specifications, such as 4mm, 6mm, 8mm, 10mm
Suction nozzle, the present embodiment select 4mm suction nozzles.The air stream outlet being arranged concentrically is the metal tube of outer diameter 12mm.
The cylindrical metal part that gun barrel 2 is outer diameter 50mm is sampled, using stainless steel or titanium matter, inner concentric is equipped with outer
The metal tube of diameter 12mm is sampled and is installed on heating element A2c and temperature between outer barrel 2a and inner tube 2b as sampling gun inner tube 2b
Sensor B2d, heating element A2c select 400W stainless steel heating tubes, temperature sensor B2d to select the heat of the long 500mm of 3mm diameters
Galvanic couple.Sampling gun, which is bolted, is fixed with cuboid gas mixing device 4.Gas mixing device is made of stainless steel plate, internal
Heat-preservation cotton is clogged, sampling gun inner tube 2b connects to form 2 branches by threeway 3a connectors, is with square waveform heat exchanger all the way
Heat exchanger tube 4b is connected, and heat exchanger makes for copper pipe, adheres on the outside of copper pipe and is equipped with temperature sensor A4c and heating element
B4d, temperature sensor A4c select commodity 3mm armoured thermocouples, heating element B to select customization diameter 6mm square waveform stainless steels
Heating tube.
It is connected by silicone rubber tube between heat exchanger and filter 5, filter 5 is the cylindrical shape zero made by glass
Part, Intermediate Gray porose glass partition are filled with filtering material, each one layer of laying of XAD resin, activated carbon, borax on partition board.On
Lower both ends are sealed by threaded cap, inner space is isolated from the outside.
Particulate cascade collector 6 be design processing or commodities purchased, it be by multiple-stage internal series connection, each filtration grade it
Between be equipped with micro-porous filtration plate so that by particulate matter detach successively in collector not at the same level.It is made of intermetallic composite coating.
Control unit 7 is electric-control cabinet body, is equipped with hook-up wiring receptacle and pipe interface, 5 air inlet of filter and flow control
The gas outlet of device A7a is connected by silicone tube, and the gas outlet of particulate cascade collector 6 passes through silicone tube and flow controller
The air inlet of B7e is connected, and the gas outlet of flow controller B7e is connected with vacuum pump 8.Flow controller selects SLM100 mass
Flow controller.Gas mixing device 4 is connected with 7 circuit of control unit by cable plug, temp probe 3 measures flue gas sampling
Real time temperature at mouthful realizes gas temperature thermostatic control in and gas mixing device 4 interior to sampling gun barrel 2.Vacuum pump selects amount stream
Measure the sliding vane rotary vacuum pump of 200L/min.
Experimental example 1
After connecting all parts by the connection diagram of particulate cascade dilution sampling device, sampling gun is inserted into chimney
Thieff hatch reads the temperature value T1 of temp probe, is 110 DEG C.By sampling gun inner tube temperature T2, it is set as 110 DEG C；Mixed gas dress
Set (4) internal temperature T3It is set as 110 DEG C, waits for 10min or so that temperature is stablized.By the thinner ratio of setting, ratio 1:
10, flow controller A (7a) and flow controller B (7e) flow velocity are respectively set as 27L/min and 30L/min, open vacuum
Pump sampling collects andersen sampler endoparticle object after sampling a period of time.Compared with prior art, the technical solution is simple
It is reliable and easy to operate, dilution can be achieved at the same time and sample this two function；In addition, the technical solution thinner ratio is adjustable, and thinner ratio
Higher than general merchandise diluter.
Claims (8)
1. a kind of flue gas particles are classified dilution sampling device, which is characterized in that including cyclone separator (1), sampling gun barrel (2),
Gas mixing device (4), filter (5), particulate cascade collector (6) and vacuum pump (8)；
Gas mixing device (4) is the airtight chamber surrounded by insulating cover (4e), in airtight chamber be equipped with threeway (4a), heat exchange
Manage (4b), temperature sensor A (4c), heating element B (4d)；
The gas outlet of the cyclone separator (1) is connected with the air inlet of sampling gun barrel (2), samples the gas outlets of gun barrel (2)
It is connect with the first interface of gas mixing device (4) interior threeway (4a), one end phase of the second interface of threeway (4a) and heat exchanger tube (4b)
Even, the third interface of threeway (4a) is connected with the air inlet of particulate cascade collector (6)；The other end and mistake of heat exchanger tube (4b)
The outlet connection of filter (5), the air inlet of filter (5) concatenate a flow controller A (7a) and are communicated with air；
Particulate cascade collector (6) gas outlet concatenates a flow controller B (7e) and is connected afterwards with vacuum pump (8) air inlet
It is logical.
2. flue gas particles as described in claim 1 are classified dilution sampling device, which is characterized in that cyclone separator (1) goes out
Gas port connect to form sealing by nut and cutting ferrule with the air inlet of sampling gun barrel (2), and cyclone separator (1) is that can remove >=10
μm solid particle, the part that is process by stainless steel or titanium.
3. flue gas particles as described in claim 1 are classified dilution sampling device, which is characterized in that cyclone separator (1) into
Temp probe (3) is equipped on the outside of gas port, the temperature measuring point of temp probe (3) is arranged in cyclone separator (1) inlet charge gas circuit
Or on air inlet, it is T to measure flue-gas temperature1, cyclone separator (1) inlet volume flow velocity is Q1。
4. flue gas particles as described in claim 1 are classified dilution sampling device, which is characterized in that sampling gun barrel (2) is by hollow
Tubular outer barrel (2a) and inner tube (2b) concentrically nested setting, outer barrel and outer wall of inner tube face in sampling gun barrel close to whirlwind point
Side airtight connection from device, outer barrel and inner tube are close to one end of gas mixing device (4) outside wall surface with insulating cover (4e) respectively
Airtight connection, air inlet of the inner tube close to one end of cyclone separator as sampling gun barrel, between outer barrel (2a) and inner tube (2b)
Confined space be provided with heating element A (2c) and temperature sensor B (2d), heating element A (2c) is around being attached at inner tube
On (2b) outer wall, temperature sensor B (2d) is located between outer barrel (2a) and heating element A (2c) so that inner tube (2b) holding is set
Fixed temperature T2, 0-300 DEG C of setting range, and T2≥T1。
5. flue gas particles as described in claim 1 are classified dilution sampling device, which is characterized in that gas mixing device (4) is by threeway
Internal duct, heat exchanger tube (4b), temperature sensor A (4c), heating element B (4d) and insulating cover (4e) composition of (4a), are mixed
Device of air (4) internal temperature keeps the temperature T of setting3, 0-300 DEG C of setting range, and T3≥T1。
6. flue gas particles as described in claim 1 are classified dilution sampling device, which is characterized in that filter (5) is hollow
Glass cylinder, filled with the material to target analytes with suction-operated, the material with suction-operated is poly- for inside
Urethane foam (PUF), activated carbon, XAD resin it is one or two kinds of more than.
7. flue gas particles as described in claim 1 are classified dilution sampling device, which is characterized in that a control unit (7), including
Have flow controller A (7a), the temperature controller A (7b) being connect by conducting wire with temp probe (3), temperature controller B (7c),
Temperature controller C (7d) and flow controller B (7e), flow controller A (7a) control atmospheric environment and flow into sky in filter (5)
The volume flow of gas is Q2, the gas volume flow velocity that flow controller B (7e) controls flow into vacuum pump is Q3, ensureing system pipes
Under the premise of the air-tightness of road, meet Q1+Q2=Q3, set Q2And Q3Make Q1And Q3Ratio k be 0.01≤k≤1, i.e. k=(Q3-
Q2)/Q3；Flow controller A is connected by pipeline with a bite of filter (5), and another mouth is connected with air；Temperature controller A with
Temp probe (3) is connected；Temperature sensor A (4c) and heating element B (4d) in temperature controller B (7c) and gas mixing device divide
Xiang Lian not；Temperature controller C is separately connected with the temperature sensor B (2d) and heating element A (2c) sampled in gun barrel.
8. flue gas particles as described in claim 1 are classified dilution sampling device, which is characterized in that the heat exchanger tube in gas mixing device
(4b) rectangular wave or the shape of spiral juxtaposition arrangement, temperature sensor A (4c) is placed between pipe wall of heat exchange pipe, is exchanged heat
It is pasted with heating element B (4d) on pipe (4b) tube wall, the case surface of gas mixing device (4) is pasted with insulating cover (4e).
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| CN201721442615.5U CN207636364U (en) | 2017-11-02 | 2017-11-02 | A kind of flue gas particles classification dilution sampling device |
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| CN201721442615.5U CN207636364U (en) | 2017-11-02 | 2017-11-02 | A kind of flue gas particles classification dilution sampling device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406230A (en) * | 2018-12-13 | 2019-03-01 | 西安交通大学 | A kind of pneumatic cutting sampling device of particulate matter and its operating method |
| CN112051114A (en) * | 2020-08-27 | 2020-12-08 | 苏州质达飞检测科技有限公司 | Handheld smoke particulate matter sampling device and method |
| CN112577789A (en) * | 2020-12-07 | 2021-03-30 | 南京波瑞自动化科技有限公司 | Dilution and jet flow two-in-one constant-speed sampling device |
| CN114733380A (en) * | 2022-03-04 | 2022-07-12 | 中国科学院大连化学物理研究所 | Standard gas generating device |
-
2017
- 2017-11-02 CN CN201721442615.5U patent/CN207636364U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406230A (en) * | 2018-12-13 | 2019-03-01 | 西安交通大学 | A kind of pneumatic cutting sampling device of particulate matter and its operating method |
| CN109406230B (en) * | 2018-12-13 | 2020-03-31 | 西安交通大学 | Pneumatic cutting and sampling device for particulate matters and operation method thereof |
| CN112051114A (en) * | 2020-08-27 | 2020-12-08 | 苏州质达飞检测科技有限公司 | Handheld smoke particulate matter sampling device and method |
| CN112051114B (en) * | 2020-08-27 | 2023-08-18 | 苏州质达飞检测科技有限公司 | Handheld flue gas particulate sampling device and method |
| CN112577789A (en) * | 2020-12-07 | 2021-03-30 | 南京波瑞自动化科技有限公司 | Dilution and jet flow two-in-one constant-speed sampling device |
| CN114733380A (en) * | 2022-03-04 | 2022-07-12 | 中国科学院大连化学物理研究所 | Standard gas generating device |
| CN114733380B (en) * | 2022-03-04 | 2024-02-23 | 中国科学院大连化学物理研究所 | Standard gas generating device |
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