CN209707187U - Based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit - Google Patents
Based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit Download PDFInfo
- Publication number
- CN209707187U CN209707187U CN201920144382.3U CN201920144382U CN209707187U CN 209707187 U CN209707187 U CN 209707187U CN 201920144382 U CN201920144382 U CN 201920144382U CN 209707187 U CN209707187 U CN 209707187U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- sampling
- air inlet
- flue
- inlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to one kind to be based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit, including twin flue sampling gun, the air inlet pipe and an air outlet pipe of built-in two parallel arrangements, one-in-and-one-out configuration, air inlet pipe is flue gas sampling pipeline, including filtering, heating, condensation, dehumidifying, CO is removed, is connected by connection hose with flue gas analyzer suction nozzle；Escape pipe is exhaust emission tube road, it is connected with flue gas analyzer exhaust nozzle, it samples and arranges electric heating wire in the air inlet pipe of gun body, temperature is adjusted by temperature controller, realizes heat insulation function, reduces and absorbs measurement error caused by measured matter because of gas condensation, flue gas carries out measurement of concetration after entering analyzer from gun body air inlet pipe, exhaust gas is discharged by gun body exhaust pipe to flue, and closed loop of the smoke entrance in flue is formed, so that negative pressure problem when flue gas measures is resolved.
Description
Technical field
The utility model relates to the technical fields of coal unit flue gas analysis sampling apparatus, in particular to a kind of based on fire coal
Unit negative pressure system flue gas analysis sampling and pretreatment unit.
Background technique
It is accurate to every flue gas pollutant index with development and implementation that power industry coal unit minimum discharge is transformed
Control and Whole Course Management become particularly important, related in order to guarantee the validity and accuracy of every flue gas pollutant data
Lower range, high-precision flue gas analysis instrument come into operation, and flue gas sampling and pretreatment unit are equally badly in need of optimizing.
For coal unit flue gas under the action of blower, flue gas pressures are in fluctuation status.Positioned at air-introduced machine leading portion cigarette
Road forms negative pressure, and in the case where load is higher or the biggish operating condition of air-introduced machine aperture, flue generates high negative pressure situation, in general, place
It is in flue gas negative pressure state in the flue of denitrating system and duster system, is taken out to the flue gas in flue negative pressure system
When taking measurement concentration, often it is in the presence of that sampling pumping power deficiency is difficult to overcome flue negative pressure, leads to the cigarette into analyzer
Throughput is reduced, and is even taken out and is held one's breath completely in the extra high situation of negative pressure, to the accuracy of flue gas pollutant test concentrations
It produces bigger effect.Simultaneously as the effect of low-level (stack-gas) economizer and air preheater, coal unit different zones flue gas temperature
Degree has larger difference, and different flue-gas temperatures are larger to pollutant concentration measurement interference, further, since coal unit coal quality and burning
Mode difference will appear steam or the phenomenon that carbon monoxide increases, and carbon monoxide and water and tested flue gas pollutant exist in flue gas
Cross jamming, carbon monoxide can generate positive interference to sulphur dioxide measuring, and the steam after condensation can dissolve a part of sulfur dioxide.
Utility model content
To solve the above-mentioned problems, the utility model proposes one kind based on the flue gas analysis of coal unit negative pressure system sampling and
Pretreatment unit.
Particular content is as follows: being based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit, the device
Including sampling gun and flue gas analyzer, it is characterized in that:
The sampling gun includes sampling gun body, air inlet pipe and exhaust pipe, and the air inlet pipe is parallel with exhaust pipe to be corresponded to
Be arranged in sampling gun body inside, the both ends of the air inlet pipe respectively with sampling gun body on sampling gun mouth and sample gas air inlet
It is connected to, smoke filter is equipped on the sampling gun mouth between air inlet pipe, in air inlet pipe from one end of sampling gun mouth
It is successively arranged electric heating wire, condensation dehydrater and CO remover, the electric heating wire and is coiled in the outer surface of tube body of air inlet pipe
On, the condensation dehydrater and CO remover are turned on the pipeline of air inlet pipe, the both ends of the exhaust pipe respectively with
Exhaust rifle mouth in sampling gun body is connected to sample gas gas outlet, and the flue gas analyzer is equipped with suction nozzle and exhaust nozzle, institute
It is connected between the suction nozzle stated and the sample gas air inlet on sampling gun by connecting hose first, on the exhaust nozzle and sampling gun
Sample gas gas outlet between by connection hose second connection.
Preferably, the inside of the flue gas analyzer is included is equipped with circulating fan.
Preferably, power control system, the electric heating wire, condensation dehydrater are equipped in the tail portion of the sampling gun
It is controlled with CO remover by power control system.
Preferably, the tail portion of the sampling gun is equipped with a vertical handle.
Preferably, the smoke filter is provided with quartzy filter pulp, ceramic element or stainless steel filter core, and the CO is gone
Except device is provided with CO absorbent, the condensation dehydrater uses electronic condenser.
The advantageous effects of the utility model:
Opposite closed loop is formed between air inlet pipe, escape pipe and negative pressure sampling flue during smoke test, effectively
Solve influence of the negative pressure to sampling fume extraction flow；Simultaneously be successively arranged in air inlet pipe electric heating wire, condensation dehydrater and
CO remover and the smoke filter being arranged on sampling gun mouth, realize to the sampling filtering of flue gas, heating, dehumidification by condensation and
CO is removed, effectively prevents other gases and moisture to the cross jamming of under test gas, experimental result is more accurate and test is grasped
It is convenient during making, flexible.
Detailed description of the invention
Fig. 1 is the agent structure schematic diagram of sampling gun；
Fig. 2 is the test structure schematic diagram of the utility model；
In figure: 1. sampling gun mouths, 2. smoke filters, 3. electric heating wires, 4. air inlet pipe, 5. sampling gun bodies, 6. condensations remove
Hydrophone, 7. power control systems, 8. handles, 9.CO remover, 10. exhaust pipes, 11. exhaust rifle mouths, 12. connection hose first, 13.
Connect hose second, 14. suction nozzles, 15. exhaust nozzles, 16. flue gas analyzers, 17. negative pressure sampling flue, 18. sample gas air inlets,
19. sample gas gas outlet.
Specific embodiment
Embodiment one is based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit referring to Fig. 1-2,
The device includes sampling gun and flue gas analyzer,
The sampling gun includes sampling gun body, air inlet pipe and exhaust pipe, and the air inlet pipe is parallel with exhaust pipe to be corresponded to
Be arranged in sampling gun body inside, the both ends of the air inlet pipe respectively with sampling gun body on sampling gun mouth and sample gas air inlet
It is connected to, is equipped with smoke filter on the sampling gun mouth between air inlet pipe, playing filtering smoke prevents the work of pipeline blockage
With, electric heating wire is successively arranged from one end of sampling gun mouth in air inlet pipe, condenses dehydrater and CO remover, condensation water removal
The sampling flue gas that device flows through condenses rapidly, and the water that condensation is formed concentrates removal, on the one hand prevents liquid water to gas quilt
The absorption for surveying component, on the other hand prevents moisture to interference caused by component measurement, and the electric heating wire is coiled in air inlet pipe
Outer surface of tube body on, playing heating sampling flue gas body prevents from condensing the interference to eudiometry, the condensation dehydrater and
CO remover is turned on the pipeline of air inlet pipe, and CO remover effectively avoids interference gas to the cross jamming of tested gas,
The both ends of the exhaust pipe are connected to the exhaust rifle mouth and sample gas gas outlet sampled in gun body respectively, the flue gas analyzer
It is equipped with suction nozzle and exhaust nozzle, is connected between the sample gas air inlet on the suction nozzle and sampling gun by connection hose first
It is logical, it is connected between the exhaust nozzle and the sample gas gas outlet on sampling gun by connecting hose second.
The inside of the flue gas analyzer is included to be equipped with circulating fan, is sampling flue gas in sampling gun and flue gas analyzer
Interior circulation provides circulation power.
Power control system is equipped in the tail portion of the sampling gun, the electric heating wire, condensation dehydrater and CO are gone
Except device is controlled by power control system.
The tail portion of the sampling gun is equipped with a vertical handle, facilitates fixed and mobile sampling gun.
The smoke filter is provided with quartzy filter pulp, ceramic element or stainless steel filter core, in the CO remover
Equipped with CO absorbent, the condensation dehydrater uses electronic condenser.
One end where sampling gun sampling gun mouth is placed in negative pressure sampling flue, sampling flue gas passes through sampling gun mouth and cigarette
Dirt filter device filters flue dust and enters air inlet pipe, after being heated by electric heating wire to the sampling flue gas for entering air inlet pipe, phase
After by condensation dehydrater, CO remover, after dehumidification by condensation removes CO, enter flue gas point from sample gas air inlet by connecting hose first
Analyzer tests and analyzes flue gas composition, and the exhaust nozzle of flue gas analyzer connects connection hose second and is connected with sample gas gas outlet
Logical, exhaust finally passes to exhaust rifle mouth and enters negative pressure sampling flue, constitutes closed loop and solves negative pressure problem.
Claims (5)
1. being based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit, which includes sampling gun and flue gas
Analyzer, it is characterized in that:
The sampling gun includes sampling gun body, air inlet pipe and exhaust pipe, the air inlet pipe corresponding arrangement parallel with exhaust pipe
In the inside of sampling gun body, the both ends of the air inlet pipe connect with the sampling gun mouth and sample gas air inlet sampled in gun body respectively
It is logical, smoke filter is equipped on the sampling gun mouth between air inlet pipe, in air inlet pipe from one end of sampling gun mouth according to
Secondary electric heating wire, condensation dehydrater and CO remover, the electric heating wire of being equipped with is coiled on the outer surface of tube body of air inlet pipe,
The condensation dehydrater and CO remover are turned on the pipeline of air inlet pipe, the both ends of the exhaust pipe respectively with sampling
Exhaust rifle mouth in gun body is connected to sample gas gas outlet, and the flue gas analyzer is equipped with suction nozzle and exhaust nozzle, described
It is connected between suction nozzle and the sample gas air inlet on sampling gun by connecting hose first, the sample on the exhaust nozzle and sampling gun
Pass through connection hose second connection between gas gas outlet.
2. according to claim 1 be based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit,
Be characterized in: the inside of the flue gas analyzer is included to be equipped with circulating fan.
3. according to claim 1 be based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit,
It is characterized in: is equipped with power control system, the electric heating wire, condensation dehydrater and CO removal in the tail portion of the sampling gun
Device is controlled by power control system.
4. according to claim 1 be based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit,
Be characterized in: the tail portion of the sampling gun is equipped with a vertical handle.
5. according to claim 1 be based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit,
Be characterized in: the smoke filter is provided with quartzy filter pulp, ceramic element or stainless steel filter core, and the CO remover is built-in
There is CO absorbent, the condensation dehydrater uses electronic condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920144382.3U CN209707187U (en) | 2019-01-28 | 2019-01-28 | Based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920144382.3U CN209707187U (en) | 2019-01-28 | 2019-01-28 | Based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209707187U true CN209707187U (en) | 2019-11-29 |
Family
ID=68640729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920144382.3U Expired - Fee Related CN209707187U (en) | 2019-01-28 | 2019-01-28 | Based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209707187U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122793A (en) * | 2020-01-09 | 2020-05-08 | 宁波博之越环境科技有限公司 | Air quality multi-component gas particle online analyzer |
-
2019
- 2019-01-28 CN CN201920144382.3U patent/CN209707187U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122793A (en) * | 2020-01-09 | 2020-05-08 | 宁波博之越环境科技有限公司 | Air quality multi-component gas particle online analyzer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5208883B2 (en) | Method and apparatus for detection, measurement and control of sulfur trioxide and other condensables in flue gas | |
| CN106053375B (en) | A kind of coal-fired plant flue gas pollutant minimum discharge on-line monitoring system | |
| CN206235608U (en) | A kind of Flue Gas Pretreatment Device of flue gas automatic monitored control system | |
| CN109959538B (en) | Device and method for testing sulfur trioxide and condensable particles emitted by fixed pollution source | |
| CN205642942U (en) | Boats and ships exhaust emission online analysis system | |
| CN108303293A (en) | The sampling of sulfur trioxide and detecting system and method in a kind of fire coal boiler fume | |
| EP0558628A4 (en) | Diesel particulate monitor | |
| CN103852438A (en) | Online solid waste incineration treatment analysis system | |
| CN205562259U (en) | A flue gas preprocessor for fume emission continuous monitor system | |
| CN109342284A (en) | A kind of detection system and detection method for harmful substances from flue gases | |
| US20080282764A1 (en) | Calibration checking for continuous emissions monitoring system | |
| CN103645127A (en) | Back flushing type real-time online monitoring system for smoke pollutants | |
| CN110346190B (en) | Device and method for testing soluble salt discharged by fixed source flue gas | |
| CN208766151U (en) | SO in a kind of on-line checking flue gas3The system of content | |
| CN104181087A (en) | System and method applicable to detecting wet fire coal smoke fine particles | |
| CN108801718A (en) | A kind of tail gas on-line monitoring system peculiar to vessel | |
| CN206038527U (en) | Coal fired power plant smoke pollutants minimum discharge on -line monitoring system | |
| CN209707187U (en) | Based on the system flue gas analysis sampling of coal unit flue negative pressure and pretreatment unit | |
| CN107894491A (en) | Test the device and method of water soluble ion concentration in wet desulphurization neat stress | |
| CN104931303A (en) | Sampling device and sampling method for detecting ammonia escaping concentration of smoke denitration | |
| CN207866584U (en) | The sampling system of sulfur trioxide in a kind of fire coal boiler fume | |
| CN205593835U (en) | Coal -fired flue gas mercury enrichment pipe for on -line monitoring | |
| CN208334331U (en) | One kind of multiple exhaust gas on-line measuring devices | |
| CN208721484U (en) | A kind of flue gas pre-processing device | |
| CN100562737C (en) | The sampling analysis device of tool powder filtering filtration function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191129 Termination date: 20220128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |