CN204556455U - The measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 - Google Patents
The measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 Download PDFInfo
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- CN204556455U CN204556455U CN201520225247.3U CN201520225247U CN204556455U CN 204556455 U CN204556455 U CN 204556455U CN 201520225247 U CN201520225247 U CN 201520225247U CN 204556455 U CN204556455 U CN 204556455U
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- absorption bottle
- flue gas
- coal
- burning boiler
- flue
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Abstract
The measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 of the utility model, comprise weigh scale and be placed on the absorption bottle above weigh scale, the top of absorption bottle is offered and is equipped with import and export, one end of flue gas particles sampling gun stretches in absorption bottle by the import on absorption bottle top, its other end stretches in the flue of coal-burning boiler chimney, and the import of control pump is connected with the outlet on absorption bottle top.The utility model is reasonable in design, simple to operate, easy-to-use, by the flue of flue gas particles sampler fixed and arranged before chimney entrance, just easily can carry out sample acquisitions to flue gas particles; Further, just can be obtained the percent by volume of accurate fine particle PM2.5 and PM10 by laser particle size analyzer or infrared particle-size analyzer, thus fine particle discharge index can be included in the daily monitoring of power plant.
Description
Technical field:
The utility model relates to coal-burning boiler fine particle content detection, particularly relates to the measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10.
Background technology:
Coal current and from now on quite over a long time in all will in China's energy structure dominate, along with a large amount of NOx, SO in coal fired generation process
2, the pollutant such as dust generates, the particle that wherein aerodynamic diameter is less than or equal to 2.5 μm and 10 μm is called as PM2.5 and PM10 respectively.These fine particles not only easy enrichment toxic heavy metal but also affect urban air-quality and health.Although the fly-ash separator that coal-burning boiler is equipped with can trap most dust, unsatisfactory to the trapping effect of fine particle.Therefore, need the fine particle content can effectively monitored in flue gas discharged from coal-fired boiler, provide foundation for power plant's control is granular material discharged.
Fine particle detection means conventional both at home and abroad is at present the collection adopting ram or cutter to carry out different-grain diameter fine particle, obtains the mass percent of different-grain diameter fine particle with this.This kind of pick-up unit is not high to the collection rate of different diameter airborne particle, and the technical requirement of pick-up unit is higher, and need professional to carry out execute-in-place, testing cost and equipment manufacturing cost are all higher, and are not suitable for the routine testing of power plant.
Utility model content:
The purpose of this utility model is for the problems referred to above, provides the measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10, realizes the simple fine particle content effectively measured in smoke evacuation.
For achieving the above object, the utility model adopts following technical scheme to be achieved:
The measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10, comprise weigh scale and be placed on the absorption bottle above weigh scale, the top of absorption bottle is offered and is equipped with import and export, one end of flue gas particles sampling gun stretches in absorption bottle by the import on absorption bottle top, its other end stretches in the flue before coal-burning boiler chimney, and the import of control pump is connected with the outlet on absorption bottle top.
The utility model further improves and is: the other end of flue gas particles sampling gun is towards flue (6) interior flue gas flow direction.
The utility model further improves and is: the circumference of the flue gas particles sampling gun between absorption bottle and flue is provided with trace pipe, and it is for maintaining the temperature of flue gas in gatherer process.
The utility model further improves and is: during work, and absorption bottle is built with the aqueous solution for gathering the particle in flue gas.
The utility model further improves and is: also comprise laser particle size analyzer or infrared particle-size analyzer, for carrying out sreen analysis to the particle aqueous solution collected, obtains the percent by volume of PM2.5 and PM10 in flue gas particles.
Compared with prior art, the utility model has following beneficial effect:
The utility model is reasonable in design, simple to operate, easy-to-use, by flue gas particles sampler fixed and arranged before chimney entrance, just easily can carry out sample acquisitions to flue gas particles; Further, just can be obtained the percent by volume of accurate fine particle PM2.5 and PM10 by laser particle size analyzer or infrared particle-size analyzer, thus fine particle discharge index can be included in the daily monitoring of power plant.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 of the utility model:
In figure: 1 is flue gas particles sampling gun; 2 is trace pipe; 3 is absorption bottle; 4 is weigh scale; 5 is control pump, and 6 is flue, and 7 is coal-burning boiler chimney.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 of the utility model, comprise weigh scale 4 and be placed on the absorption bottle 3 above weigh scale 4, weigh scale 4 measures the particle quality collected, and guarantees the minimum particle quality requirements needed for subsequent detection; The top of absorption bottle 3 is offered and is equipped with import and export, one end of flue gas particles sampling gun 1 stretches in absorption bottle 3 by the import on absorption bottle 3 top, its other end stretches in the flue 6 before coal-burning boiler chimney 7, and the other end of flue gas particles sampling gun 1 is towards flue gas flow direction in flue 6, the import of control pump 5 is connected with the outlet on absorption bottle 3 top, it is identical with flue gas flow rate in flue that control pump 5 realizes flue gas flow rate in sampling gun by flow adjustment, guarantees isokinetic sampling.
The circumference of the flue gas particles sampling gun 1 between absorption bottle 3 and flue 6 is provided with trace pipe 2, and it is for maintaining the temperature of flue gas in gatherer process, guarantees not occur steam condensation and flue gas volume reduces the collision and the coalescence that cause fine particle.
During work, absorption bottle 3 is built with the aqueous solution for gathering the particle in flue gas, utilize laser particle size analyzer or infrared particle-size analyzer to carry out sreen analysis to the particle aqueous solution collected, the percent by volume of PM2.5 and PM10 in flue gas particles can be obtained.
The measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 of the utility model, by gathering different diameter airborne particle in flue gas, utilize laser particle size analyzer or infrared particle-size analyzer to carry out particle size distribution test, obtain the percent by volume of fine particle PM2.5 and PM10.
The utility model is simple and reliable, easy to operate, can provide effective measurement means for the discharge of coal-burning boiler daily monitoring fine particle.The utility model is omnidistance in actual applications to be tested fine particle PM2.5 and PM10 discharge capacity, test result shows, the blue charcoal of burning 33% ratio mixed by pulverized coal firing boiler, in smoke evacuation, the content of fine particle PM2.5 and PM10 reduces about 20%, and the utility model reaches more than 95% with the result goodness of fit adopting other metering system to obtain.
Claims (5)
1. the measurement mechanism of coal-burning boiler PM2.5 and PM10, it is characterized in that: comprise weigh scale (4) and be placed on the absorption bottle (3) of weigh scale (4) top, the top of absorption bottle (3) is offered and is equipped with import and export, one end of flue gas particles sampling gun (1) stretches in absorption bottle (3) by the import on absorption bottle (3) top, its other end stretches in the front flue (6) of coal-burning boiler chimney (7), and the import of control pump (5) is connected with the outlet on absorption bottle (3) top.
2. according to the measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 shown in claim 1, it is characterized in that: the other end of flue gas particles sampling gun (1) is towards flue (6) interior flue gas flow direction.
3. according to the measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 shown in claim 1, it is characterized in that: the circumference of the flue gas particles sampling gun (1) between absorption bottle (3) and flue (6) is provided with trace pipe (2), and it is for maintaining the temperature of flue gas in gatherer process.
4. according to the measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 shown in claim 1, it is characterized in that: during work, absorption bottle (3) is built with the aqueous solution for gathering the particle in flue gas.
5. according to the measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 shown in claim 4, it is characterized in that: also comprise laser particle size analyzer or infrared particle-size analyzer, for carrying out sreen analysis to the particle aqueous solution collected, obtain the percent by volume of PM2.5 and PM10 in flue gas particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520225247.3U CN204556455U (en) | 2015-04-14 | 2015-04-14 | The measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520225247.3U CN204556455U (en) | 2015-04-14 | 2015-04-14 | The measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 |
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| CN204556455U true CN204556455U (en) | 2015-08-12 |
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| CN201520225247.3U Active CN204556455U (en) | 2015-04-14 | 2015-04-14 | The measurement mechanism of a kind of coal-burning boiler PM2.5 and PM10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092445A (en) * | 2015-09-10 | 2015-11-25 | 湖南长重机器股份有限公司 | Online monitoring device and method for PM2.5 industrial flue gas |
| CN108801840A (en) * | 2018-06-08 | 2018-11-13 | 天津市生态环境监测中心 | A kind of assay method of exhaust gas water capacity scene gravimetric method |
-
2015
- 2015-04-14 CN CN201520225247.3U patent/CN204556455U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092445A (en) * | 2015-09-10 | 2015-11-25 | 湖南长重机器股份有限公司 | Online monitoring device and method for PM2.5 industrial flue gas |
| CN105092445B (en) * | 2015-09-10 | 2018-04-20 | 湖南长重机器股份有限公司 | A kind of on-Line Monitor Device and its method of PM2.5 industrial smokes |
| CN108801840A (en) * | 2018-06-08 | 2018-11-13 | 天津市生态环境监测中心 | A kind of assay method of exhaust gas water capacity scene gravimetric method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |