CN104132754B - A kind of high-fidelity high-purity flue gas sampling system being applied to high-temperature flue-gas indirect measurement system - Google Patents
A kind of high-fidelity high-purity flue gas sampling system being applied to high-temperature flue-gas indirect measurement system Download PDFInfo
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- CN104132754B CN104132754B CN201410201082.6A CN201410201082A CN104132754B CN 104132754 B CN104132754 B CN 104132754B CN 201410201082 A CN201410201082 A CN 201410201082A CN 104132754 B CN104132754 B CN 104132754B
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Abstract
This patent relates to high-temperature flue-gas fields of measurement, is a kind of high-fidelity high-purity flue gas sampling system being applied to high-temperature flue-gas indirect measurement system.For indirect temperature measuring device based on adiabatic water collar heat exchanger high-temperature flue gas thermal discharge with cooling medium caloric receptivity equilibrium principle.This patent is it is intended that it provides a kind of solid dust granule removed in high-temperature flue gas sample to obtain high-purity flue gas, and guarantees high-purity flue gas constant temperature, high-fidelity high-purity flue gas sampling system of permanent smoke components conveying.This device includes being placed in the louver separator of sampling tube front end, double-deck screening thermal sleeve, flue gas sampling pipe, metal water-cooling support, support tube thermal sleeve, hiding the injection type air extractor of thermal sleeve afterbody, refractory metal pad etc..This patent can be used for the collection of the flue gas of station boiler, Industrial Stoves, the thereafter cold double pipe heat exchanger of water receiving, for indirectly measuring high-temperature flue-gas, it is possible to connect flue gas analyzer, for fume component analysis and environment monitoring etc..
Description
Technical field
This patent relates to high-temperature flue-gas fields of measurement, is a kind of to be applied to high-temperature flue-gas indirect measurement system
High-fidelity high-purity flue gas sampling system.
Background technology
The boiler of China more than 85%, cement kiln coal dust burning, the high-temperature flue-gas of generation is typically at 900-1000
More than DEG C, and rich in substantial amounts of solid-state ash particles.When common thermocouple is used for measuring inner flue gas of the stove temperature, certainty of measurement is low,
The measuring point degree of depth is limited.When for high ash-laden gas thermometric, because of serious wear, causing its service life short, maintenance cost is high.One
Plant indirect temperature measuring device based on adiabatic water collar heat exchanger high-temperature flue gas thermal discharge with cooling medium caloric receptivity equilibrium principle, can
, the long term high temperature work problems such as service life low, maintenance cost high low with preferably solution common thermocouple temperature measurement accuracy.This side
Method by measure flue gas by heat output during water collar, the flue gas flow of extraction, go out the flue-gas temperature of water collar, use heat
Balance method is counter speculates a flue-gas temperature.Pure cigarette in the dust granules exothermic heat water collar heat exchanger of a large amount of high heat capacities in flue gas
The accuracy of gas thermal discharge metering and the accuracy of water collar heat exchanger tail end flue gas flow metering, and then have influence on this high temperature
The reliability of flue-gas temperature indirect measurement system temperature-measuring results.Furthermore it is ensured that sampled point fume sample in course of conveying constant temperature,
Permanent smoke components, is also to ensure that high-temperature flue-gas surveys the key of accuracy indirectly.Therefore, try to except high-temperature flue gas sample
In solid dust granule obtain high-purity flue gas, and guarantee high-purity flue gas constant temperature, the conveying of permanent smoke components, be to design this high temperature
The problem that have to solve during flue-gas temperature indirect measurement system flue gas sampling system.
Through the retrieval of prior art is found, the method and apparatus the most not yet having a kind of effective solution the problems referred to above.
Summary of the invention
For the series of problems existing for existing high-temperature flue gas sampling process, this patent aims to provide one and is applied to
High-fidelity high-purity flue gas sampling system of high-temperature flue-gas indirect measurement system, this sampling system can the gathered cigarette of high efficiency separation
Dust granules in gas, and strictly realize sampling apparatus entrance and exit smoke components, temperature invariable.Above-mentioned for realizing
Purpose, the technical scheme that this patent is used is as follows.
A kind of high-fidelity high-purity flue gas sampling system being applied to high-temperature flue-gas indirect measurement system, this patent are provided
Population structure is a flue gas sampling system with double-layer sleeve structure going deep into the adjustable variable length of furnace depth, including putting
Louver separator in flue gas sampling pipe front end, double-deck screening thermal sleeve, flue gas sampling pipe, water-cooled metal support tube, support tube
Zirconia ceramics thermal sleeve, double-deck screening the injection type air extractor of thermal sleeve afterbody, refractory metal pad etc..Wherein through dividing
The air-flow of the high solid granule density separated from device is hidden, by bilayer, the annulus line that thermal sleeve and flue gas sampling pipe formed and returns and discharge into
Enter in burner hearth；Through separator isolated pure flue gas by inside smoke sampling tube pipeline enter indirect temperature measuring device water-cooled
Set heat exchanger；Whole system uses water-cooled metal support tube to support；Water-cooled metal support tube overcoat high temperature oxidation resisting zircon ceramic is protected
Warm sleeve；Outer bilayer hides thermal sleeve pipeline and is followed by injection type air extractor and returns for dust granules to discharge into and provide dynamic in burner hearth
Power；Use threaded before each section of flue gas sampling pipe and double-deck screening thermal sleeve and use refractory metal gasket seal；Flue gas is adopted
Sample pipe and the double-deck thermal sleeve that hides all use zirconia ceramics material to make；Flue gas sampling pipe bleeds power by being connected to water collar tubular type
Injection type air extractor after heat exchanger provides.
This patent is a kind of high-fidelity high-purity flue gas sampling system tool being applied to high-temperature flue-gas indirect measurement system
Standby advantages below.
1, flue gas sampling pipe and the double-deck thermal sleeve that hides use the high temperature oxidation resisting zircon ceramic that can bear 1800 DEG C of high temperature above
Material is made, and can be positioned over burner hearth internal collection high-temperature flue gas sample for a long time.
2, flue gas sampling pipe and the double-deck thermal sleeve that hides use multitube section connection structure, and flue gas sampling pipe can be made to go deep in burner hearth
Portion gathers the flue gas sample at different depth.
3, flue gas sampling pipe front end installs the use of louver separator and double-layer sleeve structure additional and can realize powder in flue gas
The separation of dirt granule is discharged and the constant temperature of flue gas pure to gained, permanent concentration conveying, and double-deck screening thermal sleeve structure can be effectively isolated adopts
The fume sample of collection is in course of conveying and the heat of burner hearth environment flue gas, mass transter, it is ensured that high-temperature flue gas sample is at course of conveying
In temperature and concentration keep constant.
4, enter bilayer through the isolated flue gas stream rich in dust granules of louver separator and hide the annular of hot jacket section
Pipeline, its flue-gas temperature and smoke components are same with pure Gas phase Smoke in flue gas sampling pipe, can be as sample flue gas in gatherer process
Protection flue gas, the temperature and the composition that further ensure sample flue gas did not carried at flue gas sampling pipe because of system tightness
Journey changes.
5, the dust that separated device separates and discharged by bilayer screening thermal sleeve annulus line retracts and discharges in burner hearth, keeps away
Exempt from the harmful substances in flue gas pollution to environment, accomplish environmental friendliness.
6, thermal sleeve is supported by water-cooled metal support tube, and water-cooled metal support pipe box support tube zirconia ceramics is heat insulation
Sleeve pipe, it is to avoid water-cooled metal support tube hides thermal sleeve heat exchange with double-deck, indirectly ensure that high temperature sample flue-gas temperature is reliable.
Patent of the present invention provides a kind of high-fidelity high-purity flue gas sampling system, this set for indirectly measuring high-temperature flue-gas
System can go deep into the sampling of burner hearth diverse location, and sampling exhaust gas dust clearance is high, sample course of conveying sample flue-gas temperature, composition
Stablize constant.
Accompanying drawing explanation
Fig. 1 is a kind of high-fidelity high-purity flue gas sampling system being applied to high-temperature flue-gas indirect measurement system of this patent
Structural representation.
In Fig. 1: 1-louver separator；2-flue gas sampling pipe；3-bilayer hides thermal sleeve；4-refractory metal pad；
5-water-cooled metal support tube；6-support tube zirconia ceramics thermal sleeve；7-dust granules split tunnel；8-injection type is bled dress
Put.
Detailed description of the invention
In conjunction with the accompanying drawing high-fidelity high-purity flue gas that be applied to high-temperature flue-gas indirect measurement system a kind of to this patent
Sampling system is further detailed.
Variable length flue gas sampling pipe 2 is placed in double-deck thermal sleeve 3 inside that hides, by multistage heat-resistant light pottery pipeline section screw thread even
Connect composition and use refractory metal pad 4 to seal；Its outer bilayer hides thermal sleeve 3 material and connected mode and flue gas sampling pipe 2
Identical；It is placed in the louver separator 1 of flue gas sampling pipe 2 front end for the solid dust granule isolated in burner hearth in flue gas；
Flue gas rich in dust granules is hidden the annulus line that thermal sleeve 3 and flue gas sampling pipe 2 formed and is returned by double-deck and discharge in burner hearth
Portion, being placed in the double-deck injection type air extractor 8 hiding thermal sleeve 3 afterbody provides flue gas to return row's power；The pure flue gas warp of isolated
Flue gas sampling pipe 2 passage provides high temperature pure flue gas sample for the water-cooled shell type heat exchanger being connected to thereafter；Outside water-cooled metal support tube 5
The wrong ceramic insulation sleeve pipe 6 of set support tube oxidation；Flue gas sampling pipe 2 hides thermal sleeve 3 by water-cooled metal support tube 5 together with bilayer
Support.
By simulation calculation and experimentation, when the speed of evacuation reaches 10-15m/s, can be 20-by particle diameter in flue gas
The solid particle of 280um is separated, and separation efficiency is more than 85%.During the flue gas of removing solid particle reduces thermometric
The abrasion of measuring element, improves the service life of test device, improves heat exchanger flue flue gas flow meter measuring accuracy,
Decrease the solid particle heat release impact on pure flue gas heat release, and then indirectly improve the certainty of measurement of the temperature of burner hearth flue gas.
This patent is that a kind of high-fidelity high-purity flue gas sampling system being applied to high-temperature flue-gas indirect measurement system can
For station boiler, the flue gas sample collection of Industrial Stoves, the thereafter cold double pipe heat exchanger of water receiving, for indirectly measuring high temperature cigarette
Temperature, it is possible to connect flue gas analyzer, for fume component analysis and environment monitoring etc..
The content that above-described embodiment illustrates should be understood to that these embodiments are only used for being illustrated more clearly that this patent, and not
For limiting the scope of this patent, after having read this patent, the those skilled in the art's various equivalent form of values to this patent
Amendment all fall within the application claims limited range.
Claims (3)
1. the high-fidelity high-purity flue gas sampling system being applied to high-temperature flue-gas indirect measurement system, it is characterised in that
Population structure is a flue gas sampling system with double-layer sleeve structure going deep into the adjustable variable length of furnace depth, including:
Flue gas sampling pipe, be placed in the louver separator of described flue gas sampling pipe front end, double-deck hide thermal sleeve, water-cooled metal support tube,
Support tube zirconia ceramics thermal sleeve, the injection type air extractor being located at described double-deck screening thermal sleeve afterbody and refractory metal
Pad, described flue gas sampling pipe is placed in inside described double-deck screening thermal sleeve, between described flue gas sampling pipe and double-deck screening thermal sleeve
Leave certain space and form annular channels, between each section of flue gas sampling pipe and each section double-deck hide use between thermal sleeve threaded
And with described refractory metal gasket seal, described water-cooled metal support tube overcoat has described support tube zirconia ceramics collet
Pipe, described flue gas sampling pipe is supported by described water-cooled metal support tube in the lump together with the described double-deck thermal sleeve that hides.
A kind of high-purity flue gas of high-fidelity being applied to high-temperature flue-gas indirect measurement system the most according to claim 1 is adopted
Sample system, it is characterised in that: described flue gas sampling pipe and the described double-deck thermal sleeve that hides are by High-temperature-reszirconium zirconium oxide ceramic material system
Become.
A kind of high-purity flue gas of high-fidelity being applied to high-temperature flue-gas indirect measurement system the most according to claim 1 is adopted
Sample system, it is characterised in that described annular channels is followed by dust granules split tunnel and is returned by high ash-laden gas and discharge in burner hearth,
The described double-deck injection type air extractor hiding thermal sleeve afterbody is discharged to provide power for high ash-laden gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410201082.6A CN104132754B (en) | 2014-05-14 | 2014-05-14 | A kind of high-fidelity high-purity flue gas sampling system being applied to high-temperature flue-gas indirect measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410201082.6A CN104132754B (en) | 2014-05-14 | 2014-05-14 | A kind of high-fidelity high-purity flue gas sampling system being applied to high-temperature flue-gas indirect measurement system |
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| Publication Number | Publication Date |
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| CN104132754A CN104132754A (en) | 2014-11-05 |
| CN104132754B true CN104132754B (en) | 2017-01-04 |
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| CN201410201082.6A Expired - Fee Related CN104132754B (en) | 2014-05-14 | 2014-05-14 | A kind of high-fidelity high-purity flue gas sampling system being applied to high-temperature flue-gas indirect measurement system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964857A (en) * | 2015-07-10 | 2015-10-07 | 国家电网公司 | Power station boiler smoke sampling device |
| CN104964856A (en) * | 2015-07-10 | 2015-10-07 | 国家电网公司 | Power station boiler smoke sampling device |
| CN109084912A (en) * | 2018-10-11 | 2018-12-25 | 湖南大唐节能科技有限公司 | A kind of removable multi-functional superhigh temperature water cooling temperature measuring equipment |
| CN109556749B (en) * | 2018-12-28 | 2020-08-04 | 中国特种设备检测研究院 | High-temperature flue gas contact type temperature measuring device and measuring method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1002289A6 (en) * | 1988-07-11 | 1990-11-20 | Centre Rech Metallurgique | PROCESS FOR CONTROLLING THE CROSS-UNIFORMITY OF THE COOKING OF AN AGGLOMERATION LOAD. |
| US5312186A (en) * | 1992-11-04 | 1994-05-17 | The United States Of America As Represented By The United States Department Of Energy | High temperature probe |
| CN2692652Y (en) * | 2003-09-24 | 2005-04-13 | 深圳市宇星科技发展有限公司 | Universal Continuous Monitoring direct extracting probe for gaseous pollutant |
| CN201408140Y (en) * | 2009-04-28 | 2010-02-17 | 南京华彭科技有限公司 | Self constant-temperature smoke sampling probe |
| CN201561880U (en) * | 2009-08-28 | 2010-08-25 | 武汉境辉环保科技有限公司 | Smoke sampler |
| CN102252780B (en) * | 2011-04-29 | 2012-11-28 | 上海交通大学 | Apparatus of measuring power station boiler furnace gas temperature and measuring method thereof |
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