CN102890013A - Flying ash sampler and ash removal system for thermal power plant - Google Patents
Flying ash sampler and ash removal system for thermal power plant Download PDFInfo
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- CN102890013A CN102890013A CN2012103763994A CN201210376399A CN102890013A CN 102890013 A CN102890013 A CN 102890013A CN 2012103763994 A CN2012103763994 A CN 2012103763994A CN 201210376399 A CN201210376399 A CN 201210376399A CN 102890013 A CN102890013 A CN 102890013A
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- ash
- sampler
- stopple coupon
- fly ash
- bottle
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Abstract
The invention discloses a flying ash sampler and an ash removal system for a thermal power plant provided with the flying ash sampler. The flying ash sampler comprises a sampling tube (1), a separation device and an ash collecting bottle (8), wherein the separation device comprises a separation bottle (7), wherein the separation bottle (7) is provided with an air outlet (9) and an ash outlet (10); a filtering part (11) is arranged at the air outlet (9); one end of the sampling tube (1) is provided with a sampling port (3), and the other end of the sampling tube (1) is connected to the separation bottle (7); and the ash collecting bottle (8) is detachably connected to the ash outlet (10) of the separation bottle (7). The flying ash sampler is used for sampling in a positive pressure area, and the sampling is easy and rapid.
Description
Technical field
The present invention relates to the thermal power generation field, particularly, the ash disposal system that relates to a kind of fly ash sampler and be provided with the thermal power plant of this fly ash sampler.
Background technology
In the thermal power generation process, need to from the boiler exhaust gas pipeline, collect flying dust, to provide reliable basis by the mensuration of unburned carbon in flue dust being come calculate as the science of boiler thermal output.At present, thermal power plant adopts impact type fly ash sampler or employing to amass the formula sampler to carry out Fly ash sampling basically, fly ash sampler is arranged on the horizontal flue that is connected in the air preheater outlet mostly, this position is at negative pressure region, flying dust is collected difficulty, bring difficulty for operating personnel's sampling, and be difficult to obtain real and meet the sample of the actual composition of flying dust, so just the Measurement accuracy of unburned carbon in flue dust caused difficulty, then can't calculate for the science of boiler thermal output provides reliable basis.
Summary of the invention
The purpose of this invention is to provide a kind of fly ash sampler, this fly ash sampler is used for taking a sample at barotropic field, and sampling is easy and quick.
The present invention also aims to provide a kind of ash disposal system of thermal power plant, this ash disposal system is provided with fly ash sampler at ash removal pipe, and ash removal pipe is that barotropic field and flying dust concentration are high, is conducive to obtain more quickly the sample that meets the actual composition of flying dust.
To achieve these goals, the invention provides a kind of fly ash sampler, this fly ash sampler comprises stopple coupon, tripping device and collecting the gray bottle, described tripping device comprises separating bottle, this separating bottle has exhausr port and ash discharging hole, and described exhaust ports is provided with filter house, and an end of described stopple coupon is provided with sample tap, the other end is connected to described separating bottle, and described collecting the gray bottle removably is connected in the ash discharging hole of described separating bottle.
Preferably, be provided with the sampling operation valve on the described stopple coupon, described sampling operation valve removably is connected on the described stopple coupon.
Preferably, described stopple coupon comprises the first purging section of blowing for to described sample tap, and this first purging section is connected in described stopple coupon.
Preferably, described the first purging section comprises the first scavenging duct, and an end of this first scavenging duct is connected in described stopple coupon, and the other end is provided with the first pressure gas interface, is provided with first on this first scavenging duct and purges operation valve.
Preferably, described the first scavenging duct is connected in the upside of described stopple coupon and extends upward.
Preferably, described exhausr port is arranged on the top of described separating bottle, and described filter house is arranged on the top of described exhausr port.
Preferably, described tripping device comprises the second purging section, this the second purging section comprises web member and the second scavenging duct, described web member covers on the top of described filter house and this web member and is provided with connecting hole, one end of described the second scavenging duct is connected to described connecting hole, and the other end is provided with the second pressure gas interface.
Preferably, described tripping device also comprises ash block tube, and this ash block tube is arranged in described separating bottle, and an end of this ash block tube is connected in described exhausr port, and this ash block tube is to downward-extension and block the described other end of described stopple coupon.
The present invention also provides a kind of ash disposal system of thermal power plant, and this ash disposal system comprises ash removal pipe, is provided with fly ash sampler on the described ash removal pipe, and this fly ash sampler is described fly ash sampler.
Preferably, be provided with the sampler connecting hole on the described ash removal pipe, a described end of described stopple coupon connects and is fixed in described sampler connecting hole, and the airflow direction angulation of described stopple coupon and described ash removal pipe is 25 ° ~ 35 °.
Fly ash sampler according to the present invention is applicable to take a sample in barotropic field, for example take a sample at the larger ash removal pipe of flying dust concentration, during sampling, gas in the barotropic field is carrying flying dust and is being entered in this stopple coupon by sample tap and then enter in the tripping device, separating bottle is provided with filter house at exhausr port, gas can be expelled to outside the separating bottle by this filter house, but flying dust is blocked in the separating bottle, and flying dust in the Action of Gravity Field deposit in separating bottle, and enter in the collecting the gray bottle through ash discharging hole, collecting the gray bottle is pulled down from separating bottle, can be got easily the flying dust sample to detect analysis etc.
Other features and advantages of the present invention will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and consists of the part of instructions, is used from explanation the present invention with following embodiment one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation according to the fly ash sampler of preferred implementation of the present invention;
Fig. 2 is the schematic diagram that shows the installation form of fly ash sampler according to the present invention on ash removal pipe.
Description of reference numerals
1 stopple coupon, 2 sampling operation valves, 3 sample taps
4 first scavenging ducts 5 first purge operation valve 6 first pressure gas interfaces
7 separating bottles, 8 collecting the gray bottle, 9 exhausr ports
10 ash discharging holes, 11 filter houses, 12 web members
13 second scavenging ducts, 14 second pressure gas interfaces, 15 ash block tubes
16 ash removal pipes
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that do opposite explanation, the noun of locality of use as " upper and lower " and " vertical, level " normally at fly ash sampler provided by the invention normally operating position is undefined, and also with reference to the accompanying drawings shown in direction consistent; " inside and outside " refers to inside and outside with respect to the profile of each parts itself.
The invention provides a kind of fly ash sampler, referring to Fig. 1, this fly ash sampler comprises stopple coupon 1, tripping device and collecting the gray bottle 8, described tripping device comprises separating bottle 7, this separating bottle 7 has exhausr port 9 and ash discharging hole 10, and exhausr port 9 places are provided with filter house 11, and an end of described stopple coupon 1 is provided with sample tap 3, the other end is connected to separating bottle 7, and collecting the gray bottle 8 removably is connected in the ash discharging hole 10 of separating bottle 7.
Fly ash sampler according to the present invention is applicable to carry out sample analysis at barotropic field, for example can be arranged on the ash removal pipe of ash disposal system of thermal power plant, during sampling, gas in the barotropic field is carrying flying dust and is entering stopple coupon 1 then by stopple coupon 1 and enter in the separating bottle 7 by sample tap 3, separating bottle 7 is provided with filter house 11 at exhausr port 9, gas can be expelled to outside the separating bottle 7 by this filter house 11, but flying dust has been blocked in the separating bottle 7, and flying dust in the Action of Gravity Field deposit in separating bottle 7, and enter in the collecting the gray bottle 8 through ash discharging hole 10, collecting the gray bottle 8 is pulled down from separating bottle 7, can be got easily the flying dust sample to detect analysis etc.
Preferably, can be provided with sampling operation valve 2 on the stopple coupon 1, in this case, this fly ash sampler can be installed on the device to be taken a sample for a long time, when not taking a sample, the operation valve 2 of will taking a sample is closed, and during sampling, opens sampling operation valve 2 and takes a sample.And sampling operation valve 2 can removably be connected on the stopple coupon 1, for example, in the present embodiment, sampling operation valve 2 is ball valve, and the connecting pipe at these ball valve two ends is threaded with stopple coupon 1, can be convenient for changing sampling operation valve 2 like this when sampling operation valve 2 damages.
As a kind of preferred implementation, this stopple coupon 1 also comprises the first purging section of blowing for to sample tap 3, and this first purging section is connected in stopple coupon 1.Because the sample tap 3 of stopple coupon 1 and device to be taken a sample are (for example, the ash removal pipe of ash disposal system) connects, the gas that carries flying dust in this device is to be entered in the fly ash sampler by sample tap 3, especially when flying dust concentration is larger in the gas in this device, the part Chang Rongyi of the close sample tap 3 of sample tap 3 and stopple coupon 1 is stopped up by flying dust, can't take a sample smoothly, therefore, after the first purging section is set, can use the first purging section that sample tap 3 is purged in the up time of taking a sample not, prevent that flying dust from stopping up sample tap 3 and stopple coupon 1, guarantee to take a sample and carry out smoothly.
Described the first purging section can be set to the form of any appropriate, for example, referring to Fig. 1, the first purging section can comprise the first scavenging duct 4, one end of this first scavenging duct 4 is connected in stopple coupon 1, the other end is provided with the first pressure gas interface 6, is provided with first on this first scavenging duct 4 and purges operation valve 5.When normal sampling, first purges operation valve 5 is in closed condition, when not up time occurring taking a sample, open first and purge operation valve 5, and the blow vent of extraneous pressure gas is connected with the first pressure gas interface 6, pressure gas passes into to purge towards sample tap 3 from the first pressure gas interface 6, and wherein said first purges operation valve 5 can adopt ball valve.
Preferably, the first scavenging duct 4 is connected in the upside of stopple coupon 1 and extends upward, can avoid like this when the gas that carries flying dust during by stopple coupon 1 flying dust be deposited in the first scavenging duct 4.And, as shown in Figure 1, can be set to the first scavenging duct 4 crooked near a section of described ends, and one section first scavenging duct 4 that should bending and the sampling direction (airflow direction when namely taking a sample in the stopple coupon 1 of stopple coupon 1, corresponding to being from right to left direction among Fig. 1) be acute angle, the remainder of stopple coupon 1 then extends vertically upward, and in this case, the pressure gas that is blown in the stopple coupon 1 by the first scavenging duct 4 blows towards sample tap 3 place directions.
In addition, tripping device also can be set to the form of any appropriate, and under the preferable case, as shown in Figure 1, exhausr port 9 is arranged on the top of separating bottle 7, and filter house 11 is arranged on the top of exhausr port 9.Because the proportion of flying dust is larger than air, therefore, flying dust in the gas moves downward in separating bottle 7 under Action of Gravity Field, the top that exhausr port 9 is arranged on separating bottle 7 can make the flying dust that arrives exhausr port 9 places as far as possible few, filter house 11 is arranged on the top of exhausr port 9, further make the flying dust that arrives filter house 11 places as far as possible few, thereby stopped up by flying dust after effectively avoiding filter house 11 to be stained with a large amount of flying dusts, prolong the serviceable life of filter house 11, filter house 11 can be by filter screen, filter cloth or filter pulp etc. are made, and at exhausr port 9 places a fabricated section can be set, the fabricated section of the ring-type that is positioned at exhausr port 9 tops shown in Fig. 1 for example is to be fixed on filter house 11 on this fabricated section.
Because flying dust can adhere to inevitably on the filter house 11 and may cause filter house 11 to stop up in sampling process, therefore, preferably, tripping device also comprises the second purging section, this the second purging section is used for filter house 11 is purged to clear up filter house 11, as a kind of embodiment, this the second purging section comprises web member 12 and the second scavenging duct 13, be provided with connecting hole on the top of web member 12 covering filter houses 11 and this web member 12, one end of the second scavenging duct 13 is connected to connecting hole, and the other end is provided with the second pressure gas interface 14.For the fly ash sampler shown in Fig. 1, in normal sampling situation, gas after section 11 filters after filtration can be exposed to extraneous sidewall and the second pressure gas interface 14 from filter house 11 and drain into the external world, when on the filter house 11 long-pending a large amount of dusts are arranged after, the blow vent of extraneous pressure gas is connected with the second pressure gas interface 14, pressure gas passes into that from the second pressure gas interface 14 filter house 11 is purged, web member 12 covers filter house 11 tops then can enlarge the purging scope, improve and purge efficient, by purging the serviceable life that can prolong filter house 11, avoid frequent filter house 11.
In addition, under the preferable case, referring to Fig. 1, tripping device also comprises ash block tube 15, and this ash block tube 15 is arranged in separating bottle 7, and an end of this ash block tube 15 is connected in exhausr port 9, and this ash block tube 15 is to downward-extension and block the described other end of stopple coupon 1.The gas that carries flying dust is after the described other end of stopple coupon enters the separating bottle 7, be subject to blocking of ash block tube 15, flying dust can move downward and be deposited on separating bottle 7 bottoms, therefore can accelerate the deposition of flying dust, make sampling rapider, and gas needs could arrive exhausr port 9 and filter house 11 through ash block tube 15 first when separating bottle 7 is discharged, and has further reduced the flying dust that arrives filter house 11, prevents that flying dust from stopping up filter house 11.
The present invention also provides a kind of ash disposal system of thermal power plant, and this ash disposal system comprises ash removal pipe 16, and fly ash sampler according to the present invention is arranged on this ash removal pipe 16.Because ash removal pipe 16 is barotropic field, and the concentration of flying dust is larger in the ash removal pipe 16, therefore, utilize this fly ash sampler easily and rapidly to take a sample at ash removal pipe 16, and can obtain the sample that meets the actual composition of flying dust, thereby guarantee the Measurement accuracy of unburned carbon in flue dust, then calculating for the science of boiler thermal output provides reliable basis.
Particularly, can the sampler connecting hole be set at ash removal pipe 16, the described end connection of stopple coupon 1 also is fixed in this sampler connecting hole, and the airflow direction angulation of stopple coupon 1 and ash removal pipe 16 be 25 ° ~ 35 ° (referring to Fig. 2, the direction of arrow is the airflow direction of ash removal pipe 16, and the angle of the airflow direction of stopple coupon 1 and ash removal pipe 16 is a), enters in the ash removal pipe 16 with air-flow to make things convenient for flying dust.
In thermal power plant, ash removal pipe 16 is connected with the endpiece of dust arrester, not only flying dust concentration is large and be barotropic field, fly ash sampler of the present invention is applied to carry out Fly ash sampling at ash removal pipe 16, than the fly ash sampler that uses prior art sampling in the horizontal flue (negative pressure region) that is connected in the air preheater outlet, more convenient, quick and accurate, and, those skilled in the art are to be understood that, fly ash sampler of the present invention also can be used for other device that is fit to and other material is taken a sample, for example, this fly ash sampler can be used at the lime stone pipeline of thermal power plant limestone powder being taken a sample.
Below describe by reference to the accompanying drawings preferred implementation of the present invention in detail; but; the present invention is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Need to prove that in addition each the concrete technical characterictic described in above-mentioned embodiment in reconcilable situation, can make up by any suitable mode.
In addition, also can carry out combination in any between the various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. fly ash sampler, it is characterized in that, this fly ash sampler comprises stopple coupon (1), tripping device and collecting the gray bottle (8), described tripping device comprises separating bottle (7), this separating bottle (7) has exhausr port (9) and ash discharging hole (10), described exhausr port (9) locates to be provided with filter house (11), one end of described stopple coupon (1) is provided with sample tap (3), the other end is connected to described separating bottle (7), and described collecting the gray bottle (8) removably is connected in the ash discharging hole (10) of described separating bottle (7).
2. fly ash sampler according to claim 1 wherein, is provided with sampling operation valve (2) on the described stopple coupon (1), and described sampling operation valve (2) removably is connected on the described stopple coupon (1).
3. fly ash sampler according to claim 1, wherein, described stopple coupon (1) comprises the first purging section of blowing for to described sample tap (3), this first purging section is connected in described stopple coupon (1).
4. fly ash sampler according to claim 3, wherein, described the first purging section comprises the first scavenging duct (4), one end of this first scavenging duct (4) is connected in described stopple coupon (1), the other end is provided with the first pressure gas interface (6), is provided with first on this first scavenging duct (4) and purges operation valve (5).
5. fly ash sampler according to claim 4, wherein, described the first scavenging duct (4) is connected in the upside of described stopple coupon (1) and extends upward.
6. fly ash sampler according to claim 1, wherein, described exhausr port (9) is arranged on the top of described separating bottle (7), and described filter house (11) is arranged on the top of described exhausr port (9).
7. fly ash sampler according to claim 6, wherein, described tripping device comprises the second purging section, this the second purging section comprises web member (12) and the second scavenging duct (13), described web member (12) covers on the top of described filter house (11) and this web member (12) and is provided with connecting hole, one end of described the second scavenging duct (13) is connected to described connecting hole, and the other end is provided with the second pressure gas interface (14).
8. fly ash sampler according to claim 7, wherein, described tripping device also comprises ash block tube (15), this ash block tube (15) is arranged in described separating bottle (7), one end of this ash block tube (15) is connected in described exhausr port (9), and this ash block tube (15) is to downward-extension and block the described other end of described stopple coupon (1).
9. the ash disposal system of a thermal power plant, this ash disposal system comprises ash removal pipe (16), it is characterized in that, and described ash removal pipe is provided with fly ash sampler on (16), and this fly ash sampler is the described fly ash sampler of any one in according to claim 1-8.
10. the ash disposal system of thermal power plant according to claim 9, wherein, described ash removal pipe is provided with the sampler connecting hole on (16), a described end of described stopple coupon (1) connects and is fixed in described sampler connecting hole, and the airflow direction angulation of described stopple coupon (1) and described ash removal pipe (16) is 25 ° ~ 35 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210376399.4A CN102890013B (en) | 2012-09-29 | 2012-09-29 | Flying ash sampler and ash removal system for thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210376399.4A CN102890013B (en) | 2012-09-29 | 2012-09-29 | Flying ash sampler and ash removal system for thermal power plant |
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| CN102890013B CN102890013B (en) | 2014-12-31 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568560A (en) * | 2014-12-30 | 2015-04-29 | 青岛恒远科技发展有限公司 | Device for removing particulate matters and droplets in air channels |
| CN105311889A (en) * | 2014-07-11 | 2016-02-10 | 张广舜 | Multipurpose dedusting apparatus |
| CN105737177A (en) * | 2016-03-22 | 2016-07-06 | 大唐贵州野马寨发电有限公司 | Automatic ash discharging device of ash conveying system |
| CN107238546A (en) * | 2017-06-15 | 2017-10-10 | 浙江大学 | Thermal power plant's flying marking amount detecting device and method based on radio-frequency technique |
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| CN107238546A (en) * | 2017-06-15 | 2017-10-10 | 浙江大学 | Thermal power plant's flying marking amount detecting device and method based on radio-frequency technique |
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| Publication number | Publication date |
|---|---|
| CN102890013B (en) | 2014-12-31 |
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