CN106248445A - Extraction method high-temperature flue gas discharge on-line analysis system in situ - Google Patents
Extraction method high-temperature flue gas discharge on-line analysis system in situ Download PDFInfo
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- CN106248445A CN106248445A CN201610766789.0A CN201610766789A CN106248445A CN 106248445 A CN106248445 A CN 106248445A CN 201610766789 A CN201610766789 A CN 201610766789A CN 106248445 A CN106248445 A CN 106248445A
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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
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
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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
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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Abstract
The invention discloses a kind of discharge on-line analysis system of extraction method high-temperature flue gas in situ, including having high temperature former state sampler chamber and the casing of gas sample analyzing and processing room, high-temperature sampling probe and sample gas chiller it is provided with in high temperature former state sampler chamber, gas sample analyzing and processing indoor are provided with gas sample filter assemblies, Flow-rate adjustment assembly, gas sample analyser and exhaust emissions assembly, high-temperature sampling probe one end connects with fume emission flue, the other end connects with sample gas chiller inlet end, sample gas chiller outlet side is connected with gas sample filter assemblies by adapter, the gas sample filter assemblies port of export connects with Flow-rate adjustment assembly and exhaust emissions assembly respectively, Flow-rate adjustment assembly connects with gas sample analyser.The present invention can be applied to the continuous monitoring in industrial gas emission source, has degree of integration high, and the suitability is strong, possesses self-cleaning function, and compact overall structure, it is simple to install, and operation safety, consuming cost are low, energy-conserving and environment-protective, and low noise is safe and reliable.
Description
Technical field
The present invention relates to high-temperature flue gas and be emitted on line analysis field, particularly to one extraction method high-temperature flue gas discharge in situ
On-line analysis system.
Background technology
In recent years, climate change becomes the global problem of international community's common concern.The pollution channel of air mainly has
Arbitrarily discharge and a large amount of combustion of fossil fuels of plant gas, wherein harmful gas has: carbon monoxide, nitrogen dioxide, titanium dioxide
Sulfur etc.；Greenhouse gases GHG carbon dioxide, methane, nitrous oxide, fluoroform etc., these gases essentially from
In burning and the waste gas of factory of fossil fuel, therefore, how to reduce discharging extremely the most urgent from Sources controlling toxic and harmful.
Traditional on-line analysis system adheres to using the classical technology path of " extraction method ", i.e. sampling probe system is at flue gas
After sample point automatic continuous sampling, back kick is defeated by the analysis cabinet of instrument control room, then sample gas is carried out various process and tune
Joint, after reaching the high-quality as Standard Gases, flows to in-line analyzer detection and analyzes.But the defect that the method exists is to analyze cabinet
Away from sampling probe, typically at more than 15m, have even at more than 30m, make system design complexity, manufacturing cost improve, increase
Installing the difficulty safeguarded, reduce reliability, the control limit of response speed 60s the most also runs into challenge.
At present, also there is analyser (the original position installation such as Juguang Sci. & Tech. (Hangzhou) Co., Ltd. of employing " Method for Installation in situ "
Open laser gas analyzer) need not sample gas processing system, response time is quick, but its weak point is: off-line calibration
Difficulty, maintenance is big, and the especially clearing apparatus of transmissive window adds the complexity of instrument and the inconvenience etc. of maintenance, if cleaned
Effect is not in place, necessarily jeopardizes reliability and the running quality of analyser.
Therefore, exploitation a kind of extraction method high-temperature flue gas in situ discharge on-line analysis system it is badly in need of so that it is work can be applied to
The monitoring (such as firepower electrical plant, burning power plant, chemical plant, paper mill etc.) continuously of industry waste gas emission source, has degree of integration
Height, the suitability is strong, possesses self-cleaning function, and compact overall structure, it is simple to install, and whole system is except utilizing appropriate industry pressure
Outside contracting air, it is not necessary to making electricity consumption and other power part, also without mobile parts, operation safety, consuming cost are low, energy-conserving and environment-protective,
Low noise, safe and reliable.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of discharge on-line analysis system of extraction method high-temperature flue gas in situ,
The monitoring (such as firepower electrical plant, burning power plant, chemical plant, paper mill etc.) continuously in industrial gas emission source can be applied to,
Having degree of integration high, the suitability is strong, possesses self-cleaning function, and compact overall structure, it is simple to install, and whole system is except profit
With outside appropriate industry compressed air, it is not necessary to make electricity consumption and other power part, also without mobile parts, operate safety, consuming cost
Low, energy-conserving and environment-protective, low noise, safe and reliable.
The original position extraction method high-temperature flue gas discharge on-line analysis system of the present invention, including having, high temperature former state sampler chamber is gentle
The casing of sample analyzing and processing room, is provided with high-temperature sampling probe and sample gas chiller in described high temperature former state sampler chamber, described
Gas sample analyzing and processing indoor are provided with gas sample filter assemblies, Flow-rate adjustment assembly, gas sample analyser and exhaust emissions assembly, institute
Stating high-temperature sampling probe one end to overhang casing and connect with fume emission flue, the high-temperature sampling probe other end is positioned at high temperature former state
Connecting with sample gas chiller inlet end in sampler chamber, sample gas chiller outlet side is by adapter with gas sample filter assemblies even
Logical, the described gas sample filter assemblies port of export connects with Flow-rate adjustment assembly and exhaust emissions assembly respectively, described Flow-rate adjustment group
Part connects with gas sample analyser.
Further, it is provided with high temperature break valve between described high-temperature sampling probe and sample gas chiller inlet end.
Further, described sample gas chiller include condensation exchange cavity, be arranged on condensation inverting chamber body in for sample gas lead to
The cooling coil crossed and the vortex cooler being arranged on the condensation external side of inverting chamber, described cooling coil inlet end is adopted with high temperature
Sample probe connection, outlet side connects with adapter, and described condensation exchange side, cavity bottom is provided with and condenses in inverting chamber body
The discharge outlet of the automatic draining mechanism connection being provided with.
Further, described gas sample filter assemblies includes primary filter, secondary filter and for entering primary filter
The water seal manostat of row water seal voltage stabilizing, described primary filter entrance point connects with adapter, the port of export I of primary filter with
Secondary filter entrance point connects, and the port of export II of primary filter connects with the entrance point I of water seal manostat, secondary filter
Port of export I connected with gas sample analyser by Flow-rate adjustment assembly, the port of export II of secondary filter and water seal manostat
Entrance point II connects, and the water seal manostat port of export connects with exhaust emissions assembly.
Further, the filter element of described primary filter is the cylindrical shape filter element using carbofrax material to make, this cylinder
Body shape filter element outer surface has hydrophobic filter layer；Described secondary filter is plate-like membrane type accurate filter, this plate-like membrane type
The diaphragm of accurate filter uses expanded PTFE material to make, and is provided with hydrophobic filter layer on diaphragm, described diaphragm
Along being longitudinally mounted in plate-like membrane type accurate filter.
Further, described Flow-rate adjustment assembly includes flow control valve and rotameter, described flow control valve import
End connects with the port of export of secondary filter, and the flow control valve port of export connects with rotameter entrance point, rotameter
The port of export connects with gas sample analyser.
Further, described gas sample analyser is provided with for the communication interface to data acquisition center transmission data.
Further, described exhaust emissions assembly includes pneumatic jet pump and exhaust port.
Further, described adapter wear be fixed on high temperature former state sampler chamber and gas sample analyzing and processing room between arrange point
On dividing plate.
Further, high-temperature sampling probe, vortex cooler and pneumatic jet pump are respectively provided with it are passed through compressed air
Air feed interface.
Beneficial effects of the present invention: the original position extraction method high-temperature flue gas discharge on-line analysis system of the present invention, by arranging
High-temperature sampling probe, sample gas chiller, gas sample filter assemblies, Flow-rate adjustment assembly, gas sample analyser and exhaust emissions group
Part, enables the flue gas of fume emission air flue emission to enter sample gas chiller by high-temperature sampling probe, at sample gas cooling dress
Putting and realize dehumidification by condensation under effect, it is ensured that sample gas temperature is less than 40 DEG C, sample gas enters gas sample by adapter after cooling and filters
Filtering in assembly, the gas sample after filtration enters in gas sample analyser by Flow-rate adjustment assembly, and gas sample analyser will monitoring
Data are transferred to data acquisition unit and carry out on-line analysis, and tail gas is discharged outside casing by exhaust emissions assembly or reclaims, thus
The monitoring continuously enabling the invention to be applied to industrial gas emission source (such as firepower electrical plant, burning power plant, chemical plant, is made
Paper plant etc.), there is degree of integration high, the suitability is strong, possesses self-cleaning function, and compact overall structure, it is simple to install, whole
System is in addition to utilizing appropriate industry compressed air, it is not necessary to make electricity consumption and other power part, also without mobile parts, operation safety,
Consuming cost is low, energy-conserving and environment-protective, and low noise is safe and reliable.And the gas sample analyzing and processing room of the present invention is intrinsic safety equipment,
Also can be suitable for having explosive gas atmosphere requirement to use.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Fig. 1 is the structural representation of the present invention, as shown in the figure: the original position extraction method high-temperature flue gas discharge of the present embodiment is online
Analysis system, including having high temperature former state sampler chamber 19a and the casing 19 of gas sample analyzing and processing room 19b, wherein high temperature former state is adopted
Specimen chamber 19a is high-temperature area, and gas sample analyzing and processing room 19b is room temperature region, to adapt to sampling analysis environment；Described high temperature former state
Being provided with high-temperature sampling probe 2 and sample gas chiller in sampler chamber 19a, described gas sample analyzing and processing indoor are provided with gas sample mistake
Filter assembly, Flow-rate adjustment assembly, gas sample analyser 13 and exhaust emissions assembly, described high-temperature sampling probe 2 one end overhangs
Casing 19 connects with fume emission flue 1, and it is cold with sample gas that high-temperature sampling probe 2 other end is positioned at high temperature former state sampler chamber 19a
Radiator cooler inlet end connects, and sample gas chiller outlet side is connected with gas sample filter assemblies by adapter 9, and described gas sample filters
Module outlet end connects with Flow-rate adjustment assembly and exhaust emissions assembly respectively, described Flow-rate adjustment assembly and gas sample analyser 13
Connection, the flue gas enabling fume emission flue 1 to discharge enters sample gas chiller by high-temperature sampling probe 2, cold at sample gas
Realizing dehumidification by condensation under radiator cooler effect, it is ensured that sample gas temperature is less than 40 DEG C, sample gas enters gas sample by adapter 9 after cooling
Filtering in filter assemblies, the gas sample after filtration enters in gas sample analyser 13 by Flow-rate adjustment assembly, gas sample analyser
Monitoring Data is transferred to data acquisition unit by 13 carries out on-line analysis, and tail gas by exhaust emissions assembly discharge casing 19 outer or
Reclaim.
In the present embodiment, between described high-temperature sampling probe 2 and sample gas chiller inlet end, it is provided with high temperature break valve
3, realize sample gas intake is controlled by arranging high temperature break valve 3, the high-temperature sampling probe 2 of the present embodiment connects with sample gas
The part touched uses stainless steel material to make so that it is under high temperature, super-humid conditions, resistance to corrosion is strong, improves service life.
In the present embodiment, described sample gas chiller includes condensing exchange cavity 7, being arranged on confession in condensation exchange cavity 7
Cooling coil that sample gas passes through and be arranged on the vortex cooler 6 outside condensation exchange cavity 7, described cooling coil inlet end
4 connect with high-temperature sampling probe 2, and outlet side 5 connects with adapter 9, and described condensation exchange side, cavity 7 bottom is provided with cold
The discharge outlet 8 of the automatic draining mechanism connection being provided with in solidifying exchange cavity 7, by vortex cooler 6 and cooling coil phase interworking
Close, it is achieved outlet temperature controls below 30 DEG C；The automatic draining mechanism of the present embodiment uses liquid trap to coordinate peristaltic pump draining,
Ensure the real-time that online gas concentration detects.
In the present embodiment, described gas sample filter assemblies includes primary filter 10, secondary filter 12 and for primary
Filter 10 carries out the water seal manostat 11 of water seal voltage stabilizing, and described primary filter 10 entrance point connects with adapter 9, primary mistake
The port of export I of filter 10 connects with secondary filter 12 entrance point, the port of export II of primary filter 10 and water seal manostat 11
Entrance point I connection, by arranging primary filter 10, it is achieved the coarse filtration to gas sample, the port of export I of secondary filter 12 lead to
Inflow-rate of water turbine adjusting part connects with gas sample analyser 13, it is achieved the sample gas entering gas sample analyser 13 carries out essence filtration, passes through
Arrange two-stage filter to realize solid particle polluter, mist of oil and steam mist and flutter and obtain；The port of export II of secondary filter 12 with
The entrance point II connection of water seal manostat 11, water seal manostat 11 port of export connects with exhaust emissions assembly, the water of the present embodiment
Envelope manostat 11 uses clear perspex material to make, and antiseptic property is good and is easy to observe gas sample voltage stabilizing in processing procedure
State and blowdown situation, voltage stabilizing nominal water level is designed as 50mmH2O, the highest oil pressure relief is designed as 75mmH2O, water seal manostat
Utilize water seal voltage stabilizing, ensure condensation water collection by pre-mounted part water, under the conditions of pressure reduction is relatively big, can be with bubbling voltage stabilizing, water seal
Pipe end is wedge shape or stria breach, it is ensured that bubbling is steady.
In the present embodiment, the filter element of described primary filter 10 is the cylindrical shape filter element using carbofrax material to make,
This cylindrical shape filter element outer surface has hydrophobic filter layer, it is ensured that the dust 99 of dust-filtering precision >=0.3 μm, it is achieved face
Filter；Described secondary filter 12 is plate-like membrane type accurate filter, and the diaphragm of this plate-like membrane type accurate filter uses varicosity
Polytetrafluoroethylmaterial material is made, and diaphragm is micron filtration precision diaphragm, the dust 99.9 of dust-filtering precision >=0.05 μm,
And on diaphragm, it is provided with hydrophobic filter layer, can retain and stop the fine liquid mist being suspended in gas sample, fine liquid mist and trickle powder
Dirt granule forms the nuclei of condensation at membrane surface, and described diaphragm, along being longitudinally mounted in plate-like membrane type accurate filter, makes the nuclei of condensation
It is gathered into drop and enters hydrops collecting part with air-flow along membrane surface under gravity, it is achieved self-cleaning function.
In the present embodiment, described Flow-rate adjustment assembly includes flow control valve 14 and rotameter 15, and described flow is adjusted
Joint valve 14 entrance point connects with the port of export of secondary filter 12, flow control valve 14 port of export and rotameter 15 entrance point
Connection, rotameter 15 port of export connects with gas sample analyser 13, the rotameter 15 of the present embodiment measure journey be 0～
600ml/min, coordinates the gas sample realized entering gas sample analyser 13 to carry out Flow-rate adjustment with flow control valve 14.
In the present embodiment, described gas sample analyser 13 is provided with for the communication interface to data acquisition center transmission data
18, it is achieved the real-time transmission that gas sample is analyzed.
In the present embodiment, described exhaust emissions assembly includes pneumatic jet pump 16 and exhaust port 17, it is simple to tail gas is arranged
Go out casing 19 or reclaim.
In the present embodiment, described adapter 9 wears and is fixed on high temperature former state sampler chamber 19a and gas sample analyzing and processing room 19b
Between on the demarcation strip 20 that arranges, all parts of native system are integrated in single casing, point high-temperature area and room temperature in casing
Region, compact overall structure, systematic sampling point is installed on the spot.
In the present embodiment, high-temperature sampling probe 2, vortex cooler 6 and pneumatic jet pump 16 are respectively provided with and are passed through
Compressed-air actuated air feed interface, for be passed through industry compressed air be used as gas sample circulation power source, it is not necessary to make electricity consumption and
Its power part, operation safety, consuming cost are low, energy-conserving and environment-protective, and low noise is safe and reliable.
When the present invention works, the flue gas of fume emission air flue emission enters cold by high-temperature sampling probe through high temperature break valve
In the cooling coil of solidifying exchange cavity, under vortex cooler effect, realize dehumidification by condensation, it is ensured that sample gas temperature is less than 40 DEG C, cold
Solidifying water carries out Auto-drainage by automatic draining mechanism and discharge outlet；Sample gas sequentially enters primary mistake by adapter after cooling
Carrying out coarse filtration in filter and secondary filter and essence filters, the gas sample after filtration passes sequentially through flow control valve and rotor metering
Meter enters in gas sample analyser, and Monitoring Data is transferred to data acquisition unit and carries out on-line analysis by gas sample analyser, and tail gas leads to
Cross exhaust emissions assembly discharge outside casing or reclaim.Native system is adaptable to tiny structure or malleation high-temperature flue gas divides online
Analysis.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to relatively
The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from objective and the scope of technical solution of the present invention, it all should be contained at this
In the middle of the right of invention.
Claims (10)
1. an original position extraction method high-temperature flue gas discharge on-line analysis system, it is characterised in that: include that there is the sampling of high temperature former state
Room and the casing of gas sample analyzing and processing room, be provided with high-temperature sampling probe and sample gas cooling dress in described high temperature former state sampler chamber
Putting, described gas sample analyzing and processing indoor are provided with gas sample filter assemblies, Flow-rate adjustment assembly, gas sample analyser and exhaust emissions
Assembly, described high-temperature sampling probe one end overhangs casing and connects with fume emission flue, and the high-temperature sampling probe other end is positioned at
Connecting with sample gas chiller inlet end in high temperature former state sampler chamber, sample gas chiller outlet side is by adapter and gas sample mistake
Filter assembly connection, the described gas sample filter assemblies port of export connects with Flow-rate adjustment assembly and exhaust emissions assembly respectively, described stream
Amount adjusting part connects with gas sample analyser.
Original position extraction method high-temperature flue gas the most according to claim 1 discharge on-line analysis system, it is characterised in that: described height
It is provided with high temperature break valve between temperature sampling probe and sample gas chiller inlet end.
Original position extraction method high-temperature flue gas the most according to claim 2 discharge on-line analysis system, it is characterised in that: described sample
Air cooling device includes condensation exchange cavity, is arranged on the interior cooling coil passed through for sample gas of condensation inverting chamber body and is arranged on
The vortex cooler of the condensation external side of inverting chamber, described cooling coil inlet end connects with high-temperature sampling probe, outlet side and company
Connect device connection, described condensation exchange side, cavity bottom be provided with condense inverting chamber body in the automatic draining mechanism that is provided with connect
Discharge outlet.
Original position extraction method high-temperature flue gas the most according to claim 3 discharge on-line analysis system, it is characterised in that: described gas
Spline filter assembly includes primary filter, secondary filter and for primary filter carries out the water seal voltage stabilizing of water seal voltage stabilizing
Device, described primary filter entrance point connects with adapter, and the port of export I of primary filter is with secondary filter entrance point even
Logical, the port of export II of primary filter connects with the entrance point I of water seal manostat, and the port of export I of secondary filter passes through flow
Adjusting part connects with gas sample analyser, and the port of export II of secondary filter connects with the entrance point II of water seal manostat, water seal
The manostat port of export connects with exhaust emissions assembly.
Original position extraction method high-temperature flue gas the most according to claim 4 discharge on-line analysis system, it is characterised in that: at the beginning of described
The filter element of level filter is the cylindrical shape filter element using carbofrax material to make, and this cylindrical shape filter element outer surface has thin
Water filtering layer；Described secondary filter is plate-like membrane type accurate filter, and the diaphragm of this plate-like membrane type accurate filter uses swollen
Body polytetrafluoroethylmaterial material is made, and is provided with hydrophobic filter layer on diaphragm, and described diaphragm is along being longitudinally mounted to plate-like membrane type essence
In close filter.
Original position extraction method high-temperature flue gas the most according to claim 4 discharge on-line analysis system, it is characterised in that: described stream
Amount adjusting part includes the port of export of flow control valve and rotameter, described flow control valve entrance point and secondary filter
Connection, the flow control valve port of export connects with rotameter entrance point, and the rotameter port of export connects with gas sample analyser.
Original position extraction method high-temperature flue gas the most according to claim 6 discharge on-line analysis system, it is characterised in that: described gas
Sample analyser is provided with for the communication interface to data acquisition center transmission data.
Original position extraction method high-temperature flue gas the most according to claim 4 discharge on-line analysis system, it is characterised in that: described tail
Gas Exhaust assembly includes pneumatic jet pump and exhaust port.
Original position extraction method high-temperature flue gas the most according to claim 4 discharge on-line analysis system, it is characterised in that: described company
Connect device wear be fixed on high temperature former state sampler chamber and gas sample analyzing and processing room between arrange demarcation strip on.
10. discharge on-line analysis system according to the original position extraction method high-temperature flue gas described in claim 1 to 9 any claim,
It is characterized in that: be respectively provided with on high-temperature sampling probe, vortex cooler and pneumatic jet pump and be passed through compressed-air actuated confession
Gas interface.
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| CN201610766789.0A CN106248445B (en) | 2016-08-30 | 2016-08-30 | Extraction method high-temperature flue gas in situ discharges on-line analysis system |
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| CN201610766789.0A CN106248445B (en) | 2016-08-30 | 2016-08-30 | Extraction method high-temperature flue gas in situ discharges on-line analysis system |
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| CN106248445B CN106248445B (en) | 2019-07-26 |
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| CN110044666A (en) * | 2019-05-28 | 2019-07-23 | 中国华能集团清洁能源技术研究院有限公司 | A kind of high-temperature high dust flue gas sampling system and method |
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| CN114563234A (en) * | 2022-02-21 | 2022-05-31 | 江苏安琪尔检测科技有限公司 | Fixed pollution source waste gas sampling device and sampling method thereof |
| CN116499791A (en) * | 2023-05-11 | 2023-07-28 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Soil sampler for geological survey |
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| CN114563234A (en) * | 2022-02-21 | 2022-05-31 | 江苏安琪尔检测科技有限公司 | Fixed pollution source waste gas sampling device and sampling method thereof |
| CN116499791A (en) * | 2023-05-11 | 2023-07-28 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Soil sampler for geological survey |
| CN116499791B (en) * | 2023-05-11 | 2023-08-29 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Soil sampler for geological survey |
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