CN205826519U - A kind of flue gas on-line measurement device in situ - Google Patents
A kind of flue gas on-line measurement device in situ Download PDFInfo
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- CN205826519U CN205826519U CN201620709777.XU CN201620709777U CN205826519U CN 205826519 U CN205826519 U CN 205826519U CN 201620709777 U CN201620709777 U CN 201620709777U CN 205826519 U CN205826519 U CN 205826519U
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- flue
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- flue gas
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Abstract
This utility model provides a kind of flue gas on-line measurement device in situ, this device mainly comprises sampling feeler lever, filter, measurement chamber, quartz ampoule, transmission window, corner cube reflector, power drawing device, Laser emission receiver module and analyser, and this device is installed on inside flue；Utilizing flue negative pressure, flue gas, through under power drawing device effect, enters after filter and measures chamber, after completing to measure, returns again to flue.First, owing to this device is installed on inside flue, measure ambient temperature and keep consistent with the flue-gas temperature moment, measure the internally installed quartz ampoule in chamber simultaneously, can ensure that flue gas enters components unchanged when measuring chamber, especially to the smoke components (such as ammonia) with adsorptivity, it is possible to achieve accurately measure.Secondly, this device utilizes flue negative pressure to bleed, it is not necessary to uses instrument compressed air, has energy conservation characteristic.It addition, measurement flue gas is from flue, it is back to the most again flue, will not enter in air, there is environmental protection characteristic.
Description
Technical field
This utility model relates to a kind of measurement apparatus for fume component analysis, belongs to flue gas and measures and atmospheric pollution row
Discharge technique field.
Background technology
The environmental pollution caused by utilization of energy in recent years is day by day serious, proposes minimum discharge, institute in " 13 " planning
Meaning minimum discharge is that the Air Pollutant Discharge discharge standard making coal unit is low by multi-pollutant efficient Collaborative Control technology
In " thermal power plant's air pollution emission standard " statutory standards that China is existing.Smoke components measurement is proposed higher by minimum discharge
Requirement, flue gas generally comprises extraction mode and measures and in situ mode is measured.
Extraction mode is measured, and i.e. fume extraction is measured in the measurement apparatus outside flue by air extractor,
Such as CEMS analyser.In extraction metering system, need sampling line is carried out heat tracing for guaranteeing that smoke components is constant, but be
Just heat tracing also cannot keep consistent with the flue-gas temperature moment, it is impossible to reaches to accurately measure requirement, especially for easily adsorbing, the most anti-
Answering gas (such as ammonia), extraction mode measurement result representativeness is poor.It addition, in traditional extraction metering system, frequently with
Peristaltic pump or jet pump are bled, and tested flue gas can often be directly discharged in air, and not only cost is high, and causes secondary
Pollute.It addition, tradition extraction metering system is relatively low due to heat tracing temperature, the faults such as pipeline blocking, maintenance workload often occur
Greatly.
Mode is measured in situ, typically uses laser measurement, Laser emission and reception unit to be separately mounted to walling of flue both sides,
For coal-burning power plant, this metering system is high due to kind of dust, laser beam typically can only through 1-2 rice away from
From, it is impossible to it is applied to the operating mode that dust content is bigger.It addition, walling of flue shakes, Unit Commitment all can cause light path unstable, and
And open measurement environment also causes instrument to demarcate.
Utility model content
The purpose of this utility model is to overcome above-mentioned technical disadvantages: smoke components distortion, cost height, secondary pollution, powder
Dust concentration is high, it is provided that a kind of flue gas is accurate, energy-conservation, non-secondary pollution, may filter that the in-situ sampling measurement apparatus of dust.
The technical solution of the utility model is as follows: described device comprises sampling feeler lever, measurement chamber, power drawing device, swashs
Light emission receiver module and analyser；Described sampling feeler lever, filter and measurement chamber are arranged in flue；Described filter is arranged
Between sampling feeler lever and measurement chamber, and it is connected with measuring chamber by air inlet pipeline；It is provided with quartz ampoule, transmissive window measuring intracavity
Mouth and corner cube reflector；The laser that Laser emission receiver module sends is entered by transmission window and measures chamber, arrives pyramid reflection
Reflected after mirror, again pass by entrance analyser after transmission window is received by Laser emission receiver module and be analyzed；Described
Measure chamber through walling of flue and to be fixed on flue by the first walling of flue flange；Power drawing device is through walling of flue and passes through
Second walling of flue flange is fixed on flue, and this power drawing device is connected with measuring chamber by exhaust pipe.
Preferably, described power drawing device uses Laval-cavity nozzle and jet pump.
In the technical solution of the utility model, in described device also includes the first flange sleeve of being arranged in walling of flue and
Second flange sleeve；Described measurement chamber and power drawing device are separately mounted in the first flange sleeve and the second flange sleeve
In.
In technical solutions of the utility model, described device also includes demarcating and blowback pipeline, demarcation and blowback pipeline and mistake
Filter is attached, and standard source of the gas is attached with demarcation and blowback pipeline by demarcating valve, and compressed air source passes through blowback
Valve is connected with demarcation and blowback pipeline.
This utility model has the following advantages and the technique effect of salience: 1. this device is installed on inside flue, measures
Ambient temperature keeps consistent with flue-gas temperature, and measures the internally installed quartz ampoule in chamber, and flue gas enters measurement intracavity portion and may insure that
Its components unchanged, especially has the flue gas (such as ammonia) of characterization of adsorption, it is possible to achieve accurately measure；2. this device utilizes flue to bear
Pressure is bled, it is not necessary to uses instrument compressed air, has energy conservation characteristic；3. measurement flue gas is from flue, is back to the most again cigarette
Road, will not enter in air, have environmental protection characteristic.
Accompanying drawing explanation
Fig. 1 is this utility model structural principle schematic diagram.
Fig. 2 is this utility model air inlet pipeline partial enlarged drawing.
In figure: 1-sampling feeler lever；2-filter；3-measures chamber；4-quartz ampoule；5-power drawing device；6-Laser emission
Receiver module；7-analyser；8-transmission window；9-corner cube reflector；10-adpting flange；11-the first walling of flue flange；12-
One flange sleeve；13-the second walling of flue flange；14-the second flange sleeve；15-air inlet light path；16-exhaust pipe；17-demarcates
Valve；18-blowback valve；19-optical fiber；20-coaxial cable；21-external flue wall；22-heat-insulation layer；23-inner flue wall；24-marks
Determine and blowback pipeline.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
Fig. 1 is the example structure principle schematic of a kind of original position flue gas on-line measurement device, and as seen from the figure, this measurement fills
Put and comprise sampling feeler lever 1, filter 2, measurement chamber 3, quartz ampoule 4, power drawing device 5, Laser emission receiver module 6, analysis
Instrument 7, transmission window 8, corner cube reflector 9, adpting flange the 10, first walling of flue flange the 11, first flange sleeve the 12, second flue
Wall approach orchid the 13, second flange sleeve 14, air inlet light path 15, exhaust pipe 16, demarcate valve 17, blowback valve 18, optical fiber 19, with
Shaft cable 20, external flue wall 21, heat-insulation layer 22, inner flue wall 23 and demarcation and blowback pipeline 24.Described power drawing device 5
Vacuum generator, jet pump, Laval-cavity nozzle and peristaltic pump etc. can be used, it is preferred to use Laval-cavity nozzle.
Sampling feeler lever 1, filter 2 and measurement chamber 3 are arranged in flue；Filter be arranged on sampling feeler lever and measure chamber it
Between, and be connected with measuring chamber by air inlet pipeline 15；It is provided with quartz ampoule 4, transmission window 8 and corner cube reflector 9 measuring intracavity；
The laser that Laser emission receiver module 6 sends is entered by transmission window 8 and measures chamber 3, is reflected after arriving corner cube reflector 9,
Again pass by entrance analyser 7 after transmission window 8 is received by Laser emission receiver module 6 to be analyzed.
Measure chamber 3 pass walling of flue and be fixed on flue by the first walling of flue flange 11；Power drawing device passes
Walling of flue is also fixed on flue by the second walling of flue flange 13, and this power drawing device is by exhaust pipe 16 and measurement chamber
Connect.Measure chamber 3 and power drawing device 5 and be separately mounted in the first flange sleeve 12 and second in flange sleeve 14.Demarcate
And blowback pipeline is attached with filter 2, standard source of the gas is attached with demarcation and blowback pipeline 24 by demarcating valve 17,
Compressed air source is connected with demarcation and blowback pipeline 24 by blowback valve 18.
Sampling feeler lever 1 uniform pore openings, flue gas enters sampling feeler lever in hole, after filter 2 filters, utilizes flue to bear
Pressure, under power drawing device 5 swabbing action, measures in entering the quartz ampoule 4 measuring chamber 3, enters again after completing to measure
Flue, calibrating gas can by demarcate pipeline 17 measurement is demarcated, analyser 7 can automatically control blowback pipeline 18 to mistake
Filter 2 is timed purging.Measure the internally installed quartz ampoule in chamber 34, the gas (such as ammonia) having characterization of adsorption can be carried out
High-fidelity is measured.This device utilizes flue negative pressure effect, uses power drawing device 5 to bleed, it is not necessary to use instrument compression
Air, it is possible to achieve energy-conservation measurement.It addition, under power drawing device 5 acts on, flue gas, from flue, returns again flue, permissible
Realize pollution-free measurement.
This device uses Laser analysis to measure, the internally installed laser instrument of analyser, the laser warp that laser instrument sends
Crossing fiber-optic transfer to Laser emission and receive unit 6, the laser that Laser emission reception unit 6 sends is entered by transmission window 8 to be surveyed
Amount chamber 3, arrives corner cube reflector 9 after once absorbing and is reflected, again pass by transmission window 8 and swashed after double absorption
The photodetector of light emission receiving terminal 6 is received and converted into the signal of telecommunication, is analyzed to analyser 7 through coaxial cable transmission.
Claims (4)
1. an in situ flue gas on-line measurement device, it is characterised in that: described device comprise sampling feeler lever (1), measure chamber (3),
Power drawing device (5), Laser emission receiver module (6) and analyser (7)；Described sampling feeler lever (1), filter (2) and survey
Amount chamber (3) is arranged in flue；Described filter is arranged on sampling feeler lever and measures between chamber, and by air inlet pipeline (15) with
Measurement chamber connects；
It is provided with quartz ampoule (4), transmission window (8) and corner cube reflector (9) measuring intracavity；Laser emission receiver module (6) is sent out
The laser gone out enters in the quartz ampoule (4) measuring chamber (3) by transmission window (8), is reflected after arriving corner cube reflector (9),
Again pass by entrance analyser (7) after transmission window (8) is received by Laser emission receiver module (6) to be analyzed；
Described measurement chamber (3) is fixed on flue through walling of flue and by the first walling of flue flange (11)；Power suction dress
Putting through walling of flue and be fixed on flue by the second walling of flue flange (13), this power drawing device passes through exhaust pipe
(16) it is connected with measurement chamber.
2. according to a kind of flue gas on-line measurement device in situ described in claim 1, it is characterised in that: described power suction dress
Put employing Laval-cavity nozzle and jet pump.
3. according to a kind of flue gas on-line measurement device in situ described in claim 1 or 2, it is characterised in that: described device also wraps
Include (12) and the second flange sleeve (14) in the first flange sleeve being arranged in walling of flue；Described measurement chamber (3) and power
Aspirator (5) is separately mounted in the first flange sleeve interior (12) and the second flange sleeve (14).
4. according to a kind of flue gas on-line measurement device in situ described in claim 1 or 2, it is characterised in that: described device also wraps
Including demarcation and blowback pipeline (24), demarcate and blowback pipeline is attached with filter (2), standard source of the gas is by demarcating valve
(17) being attached with demarcation and blowback pipeline (24), compressed air source is by blowback valve (18) and demarcation and blowback pipeline
(24) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620709777.XU CN205826519U (en) | 2016-07-06 | 2016-07-06 | A kind of flue gas on-line measurement device in situ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620709777.XU CN205826519U (en) | 2016-07-06 | 2016-07-06 | A kind of flue gas on-line measurement device in situ |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205826519U true CN205826519U (en) | 2016-12-21 |
Family
ID=57564651
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620709777.XU Active CN205826519U (en) | 2016-07-06 | 2016-07-06 | A kind of flue gas on-line measurement device in situ |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053351A (en) * | 2016-07-06 | 2016-10-26 | 北京新叶能源科技有限公司 | In-situ flue gas online measuring device |
| CN108801964A (en) * | 2018-09-20 | 2018-11-13 | 刘建松 | It is a kind of directly to measure formula gaseous pollutant emission monitoring device |
| CN112834423A (en) * | 2020-12-31 | 2021-05-25 | 武汉方特工业设备技术有限公司 | Sampling device for laser flue gas online analyzer of intelligent steelmaking system |
-
2016
- 2016-07-06 CN CN201620709777.XU patent/CN205826519U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053351A (en) * | 2016-07-06 | 2016-10-26 | 北京新叶能源科技有限公司 | In-situ flue gas online measuring device |
| CN108801964A (en) * | 2018-09-20 | 2018-11-13 | 刘建松 | It is a kind of directly to measure formula gaseous pollutant emission monitoring device |
| CN112834423A (en) * | 2020-12-31 | 2021-05-25 | 武汉方特工业设备技术有限公司 | Sampling device for laser flue gas online analyzer of intelligent steelmaking system |
| CN112834423B (en) * | 2020-12-31 | 2022-09-06 | 武汉方特工业设备技术有限公司 | Sampling device for laser flue gas online analyzer of intelligent steelmaking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191101 Address after: Room 321, No. 42, Guangzhou road, Nantong Development Zone, Jiangsu Province Patentee after: Nantong Xinye Energy Technology Co., Ltd Address before: 100190 Beijing, Zhongguancun, Haidian District, north two, No. 30, building 203, room 13 Patentee before: Beijing young leaves Energy Science Co., Ltd |