CN205301014U - Boiler flue gas composition short -term test sampling system - Google Patents
Boiler flue gas composition short -term test sampling system Download PDFInfo
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- CN205301014U CN205301014U CN201520934589.2U CN201520934589U CN205301014U CN 205301014 U CN205301014 U CN 205301014U CN 201520934589 U CN201520934589 U CN 201520934589U CN 205301014 U CN205301014 U CN 205301014U
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- China
- Prior art keywords
- flue gas
- boiler
- electromagnetic valve
- flue
- flying dust
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 239000003546 flue gas Substances 0.000 title claims abstract description 85
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- 238000005070 sampling Methods 0.000 title claims abstract description 27
- 238000012031 short term test Methods 0.000 title abstract 2
- 238000000926 separation method Methods 0.000 claims abstract description 51
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 239000000428 dust Substances 0.000 claims abstract description 40
- 239000000779 smoke Substances 0.000 claims description 33
- 239000010881 fly ash Substances 0.000 claims description 12
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 239000003818 cinder Substances 0.000 claims description 4
- 239000000284 extract Substances 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000738 capillary electrophoresis-mass spectrometry Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
Abstract
The utility model provides an embodiment's boiler flue gas composition short -term test sampling system, include: the stack sampling pipe is connected with the boiler flue, the quantity of stack sampling pipe is no less than 3, be used for with flue gas in the boiler flue transmits the device to flue gas separation, the flue gas separation device, it is right to be used for the flue gas that the stack sampling pipe was taken a sample carries out the flying dust separation, the connecting pipe, with the flue gas separation device is connected, be used for with flue gas behind the flue gas separation device separation flying dust falls into two the tunnel, wherein, connect air exhaust device all the way, another way is used for being connected to detection device, air exhaust device, be used for through the connecting pipe extracts in succession the flue gas of flying dust after -separating carries out in the flue gas separation device. This system can reduce detection device and examine the time that time measuring need follow extraction flue gas in the boiler flue, makes the detection device who is connected with the connecting pipe can carry out the measuring of boiler flue gas composition fast.
Description
Technical field
This utility model relates to boiler smoke composition detection field, particularly relates to a kind of boiler smoke composition and quickly detects sampler.
Background technology
Containing compositions such as O2, NO, CO2, SO2 in flue gas after heat power plant boiler burning, it is boiler and the basis of the operation of desulphurization and denitration system, diagnosis and optimization thereof to the measurement of its concentration, boiler flue is provided with the on-line measurement device of multiple smoke components, such as the zirconia oxygen analyzer for boiler combustion, measurement O2 concentration; For the Continuous emission monitoring system (CEMS, ContinuousEmissionMonitoringSystem) that desulfurization and denitrating system run, measure NO, CO, CO2, SO2 etc.; These detections or monitoring device are by measuring the smoke components of certain point in flue, it is achieved run and control or operation monitoring.
Owing to the flue of large-sized boiler has bigger size, the smoke components not only Existential Space inhomogeneities of the CONCENTRATION DISTRIBUTION in flue; And boiler controller system is in automatic power grid control (AGC) input situation, there is also time inhomogeneities, the smoke components concentration of limited several position is difficult to meet the optimization of boiler and runs control, spray ammonia especially for SCR denitration system controls, the boiler of one 600MW unit is likely to only rely on the NO concentration of 2 points and goes to control spray ammonia total amount, and it is extensive that this is clearly comparison. And it is relatively costly to increase flue gas measurement apparatus on a large scale. Then, power plant is frequently by irregularly carrying out the method for performance test to optimize the operation of boiler and system for desulfuration and denitration thereof.
But performance test still cannot solve the quickly detection problem so that boiler operating parameter to carry out relevant adjustment according to real time execution operating mode; And performance test is smoke components CONCENTRATION DISTRIBUTION result under certain condition, it is impossible to realize full automation control.
Utility model content
Based on this, it is necessary to provide a kind of boiler smoke composition that can be used for quickly detecting quickly to detect sampler.
A kind of boiler smoke composition quickly detects sampler, including:
Stack sampling pipe, is connected with boiler flue, and the quantity of described stack sampling pipe is no less than 3, for transmitting the flue gas in described boiler flue to flue gas separation unit;
Described flue gas separation unit, carries out flying dust separation for the flue gas that described stack sampling pipe is sampled to;
Connecting tube, is connected with described flue gas separation unit, for the flue gas after described flue gas separation unit separation flying dust is divided into two-way; Wherein, a road connects air extractor, and another road is used for being connected to detecting device;
Described air extractor, for by carrying out the flue gas after flying dust separation in flue gas separation unit described in described connecting tube continuous drawing.
Above-mentioned boiler smoke composition quickly detects sampler, owing to air extractor can by carrying out the flue gas after flying dust separation in flue gas separation unit described in described connecting tube continuous drawing, the flue gas that described stack sampling pipe is sampled to from boiler flue can be carried out flying dust separation by flue gas separation unit, again through air extractor, the flue gas in boiler flue is continuously extracted out from boiler flue, the time needing to extract flue gas when detecting device detects from boiler flue can be reduced, the detecting device being connected with connecting tube is enable to be quickly carried out boiler smoke composition detection.
Accompanying drawing explanation
Fig. 1 is the structural representation that the boiler smoke composition of a kind of embodiment quickly detects sampler;
Fig. 2 is the workflow diagram controlling device that the boiler smoke composition of Fig. 1 quickly detects sampler;
Fig. 3 is the sequential chart that each detection battery valve opens and closes.
Detailed description of the invention
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is described more fully. Accompanying drawing gives preferred embodiment of the present utility model. But, this utility model can realize in many different forms, however it is not limited to embodiment described herein. On the contrary, the purpose providing these embodiments is to make the understanding to disclosure of the present utility model more thorough comprehensively.
Unless otherwise defined, all of technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model are generally understood that. The purpose describing specific embodiment it is intended merely to herein, it is not intended that in restriction this utility model at term used in the description of the present utility model. Term as used herein " or/and " include the arbitrary and all of combination of one or more relevant Listed Items.
As it is shown in figure 1, the boiler smoke composition of a kind of embodiment quickly detects sampler, including:
Stack sampling pipe 110, is connected with boiler flue 200, and the quantity of described stack sampling pipe 110 is no less than 3, for transmitting the flue gas in described boiler flue 200 to flue gas separation unit 130.
Described flue gas separation unit 130, is connected with described stack sampling pipe 110, carries out flying dust separation for the flue gas that described stack sampling pipe 110 is sampled to. Flue gas separation unit 130 can be Whirlwind cyclone.
Connecting tube 150, is connected with described flue gas separation unit 130, is divided into two-way for the flue gas after described flue gas separation unit 130 is separated flying dust. Wherein, a road connects air extractor 170, and another road is used for being connected to detecting device 190.
Described air extractor 170, for by carrying out the flue gas after flying dust separation in flue gas separation unit 130 described in described connecting tube 150 continuous drawing.Air extractor 170 can be air pump. So, air extractor 170 can be opened before detecting device 190 detects, boiler smoke composition so can be avoided quickly to detect the flue gas of sampler sampling because of the interference of flue gas original in stack sampling pipe 110, reduce the waiting time that detecting device 190 carries out detecting; The fly ash loopback device 120 that flue gas separation unit 130 is connected by flying dust electromagnetic valve 140 simultaneously has filtered the flying dust in most of flue gas, it is possible to protection detecting device 190, improves its service life.
Above-mentioned boiler smoke composition quickly detects sampler, owing to air extractor 170 can by carrying out the flue gas after flying dust separation in flue gas separation unit 130 described in described connecting tube 150 continuous drawing, the flue gas that described stack sampling pipe 110 is sampled to from boiler flue 200 can be carried out flying dust separation by flue gas separation unit 130, again through air extractor 170, the flue gas in boiler flue 200 is continuously extracted out from boiler flue 200, the time needing to extract flue gas when detecting device 190 detects from boiler flue 200 can be reduced, make the detecting device 190 being connected with connecting tube 150 can be quickly carried out boiler smoke composition detection.
In order to realize boiler smoke composition is quickly detected the Automated condtrol of sampler. Wherein in an embodiment, also include bleeding electromagnetic valve 160, detection electromagnetic valve 180 and controlling device 1A0. Described connecting tube 150 pass through described in electromagnetic valve 160 of bleeding be connected with described air extractor 170. Described connecting tube 150 is connected with described detecting device 190 by described detection electromagnetic valve 180.
Described control device 1A0 bleeds electromagnetic valve 160 and described detection electromagnetic valve 180 described in connecting, for the open and close of bleed described in controlling electromagnetic valve 160 and described detection electromagnetic valve 180.
In order to reasonably process the flying dust that flue gas separation unit 130 is separated, wherein in an embodiment, also include fly ash loopback device 120, and arrange for realizing the Automated condtrol of cinder reinjection, connect the described flue gas separation unit 130 flying dust electromagnetic valve 140 with described fly ash loopback device 120.
Described control device 1A0 is also connected with described flying dust electromagnetic valve 140, for controlling the open and close of described flying dust electromagnetic valve 140.
Described fly ash loopback device 120 is also connected with described boiler flue 200, for the cinder reinjection after being separated by flying dust in described flue gas separation unit 130 when described flying dust electromagnetic valve 140 is opened to described boiler flue 200. Fly ash loopback device 120 can be venturi.
Wherein in an embodiment, also include described detecting device 190, carry out detection of exhaust gas compositions for the flue gas after described flue gas separation unit 130 is separated flying dust. Detecting device 190 can be provided with Continuous emission monitoring system.
Wherein in an embodiment, for realizing analyzing and processing and the result of the data that detecting device 190 detects are shown, described control device 1A0 is also connected with described detecting device 190, is analyzed processing to the data detected of described detecting device 190, and analysis processing result is displayed.
For realizing the Automated condtrol of air extractor 170, described control device 1A0 is also connected with described air extractor 170, controls the open and close of described air extractor 170.
For convenience of process air extractor 170 extract out flue gas, wherein in an embodiment, described air extractor 170 is also connected with described boiler flue 200, for by continuous drawing to flue gas be recycled to described boiler flue 200.So, it is also possible to avoid the smoke pollution environment that air extractor 170 is extracted out; Or unnecessary, to process the flue gas that air extractor 170 is extracted out process program can also be reduced.
For avoiding sample point to concentrate on certain region, making the flue gas being sampled to not representative, wherein in an embodiment, described stack sampling pipe 110 is evenly arranged on described boiler flue 200.
Wherein in an embodiment, described flue gas separation unit 130, described connecting tube 150 are all identical with the quantity of described stack sampling pipe 110, and relative set one to one. In the present embodiment, the quantity of flue gas separation unit 130, described connecting tube 150 and described stack sampling pipe 110 is 5.
For the equipment of economizing on resources, wherein in an embodiment, the quantity of described air extractor 170 is 1, and each described connecting tube 150 is all connected with described air extractor 170. It is to be appreciated that in the other embodiments except the present embodiment, the quantity of air extractor 170 can be identical with the quantity of connecting tube 150, it is also possible to multiple connecting tubes 150 share an air extractor 170, but the quantity of air extractor 170 is more than 1.
The work process of sampler is quickly detected, incorporated by reference to consulting Fig. 2 for further illustrating above-mentioned boiler smoke composition. Boiler smoke composition quickly detects the work process controlling device 1A0 in sampler, including step:
S110: send and control to close closing flying dust valve signal and controlling to close the closedown detection valve signal of detection electromagnetic valve 180 of flying dust electromagnetic valve 140, and send and control to open the unlatching extraction valve signal of electromagnetic valve 160 of bleeding, send simultaneously and control the unlatching that air extractor 170 opens and bleed signal.
Before detecting device 190 detects, first send and control to close closing flying dust valve signal and controlling to close the closedown detection valve signal of detection electromagnetic valve 180 of flying dust electromagnetic valve 140, boiler smoke composition can be avoided quickly to detect the flue gas of sampler sampling because of the interference of flue gas original in stack sampling pipe 110, reduce the waiting time that detecting device 190 carries out detecting; The fly ash loopback device 120 that flue gas separation unit 130 is connected by flying dust electromagnetic valve 140 simultaneously has filtered the flying dust in most of flue gas, it is possible to protection detecting device 190, improves its service life. Send and control to open the unlatching extraction valve signal of electromagnetic valve 160 of bleeding, send simultaneously and control the unlatching that air extractor 170 opens and bleed signal. So, air extractor 170 can be controlled continuously extracted out from boiler flue 200 by the flue gas in boiler flue 200, the time needing to extract flue gas when detecting device 190 detects from boiler flue 200 can be reduced, and then make the detecting device 190 being connected with connecting tube 150 be quickly carried out boiler smoke composition detection.
S130: successively and circulate for each detection electromagnetic valve 180, send the open detection valve signal controlling open detection electromagnetic valve 180, after continuing Preset Time, sends the closedown detection valve signal controlling to close detection electromagnetic valve 180. Described Preset Time is not more than 2 seconds.
It is to be appreciated that according to open detection valve signal and closedown detection valve signal, each detection battery valve 180 is a unlatching 1 detection battery valve 180 every time. Fig. 3 has illustrated the sequential chart that each detection battery valve 180 opens and closes. Wherein, the sequence number in left side is the numbering of each detection electromagnetic valve 180. In the present embodiment, it is possible to for n, n be not less than 3 natural number.In figure, ledge represents the detection electromagnetic valve 180 opening correspondence, and non-ledge is close corresponding detection electromagnetic valve 180. Each ledge duration is Preset Time.
Specifically, Preset Time is determined from the access point of connecting tube 150 to the response time of detecting device 190 required time and detecting device 190 according to flue gas. In the present embodiment, Preset Time can be 1s��2s.
So, it is possible to make the flue gas that detecting device 190 is extracted by each gas sampling probe 110 of being connected with boiler flue 200 that the flue gas in boiler flue 200 to carry out the quick circling measurment of smoke components. Simultaneously as each detection electromagnetic valve 180 continues Preset Time after receiving open detection valve signal just can receive closedown detection valve signal, therefore the detection Annual distribution of each test point is uniform, and testing result so can be made more accurate.
Please continue to refer to Fig. 1 and Fig. 2, for avoiding the flying dust in fly ash loopback device 120 to affect testing result further, the work process controlling device 1A0 further comprises the steps of:
S100: send the unlatching flying dust valve signal controlling to open described flying dust electromagnetic valve 140 at Preset Time, the extremely described boiler flue 200 of the cinder reinjection after making fly ash loopback device 120 be separated by flying dust in flue gas separation unit 130.
Wherein, Preset Time can extract fly ash content situation in speed and flue gas and arrange according to air extractor 170.
Above example only have expressed several embodiments of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to this utility model the scope of the claims. It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make multiple deformation and improvement, these broadly fall into protection domain of the present utility model. Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (8)
1. a boiler smoke composition quickly detects sampler, it is characterised in that including:
Stack sampling pipe, is connected with boiler flue, and the quantity of described stack sampling pipe is no less than 3, for transmitting the flue gas in described boiler flue to flue gas separation unit;
Described flue gas separation unit, carries out flying dust separation for the flue gas that described stack sampling pipe is sampled to;
Connecting tube, is connected with described flue gas separation unit, for the flue gas after described flue gas separation unit separation flying dust is divided into two-way; Wherein, a road connects air extractor, and another road is used for being connected to detecting device;
Described air extractor, for by carrying out the flue gas after flying dust separation in flue gas separation unit described in described connecting tube continuous drawing.
2. boiler smoke composition according to claim 1 quickly detects sampler, it is characterised in that also include bleeding electromagnetic valve, detection electromagnetic valve and controlling device; Described connecting tube pass through described in electromagnetic valve of bleeding be connected with described air extractor; Described connecting tube is connected with described detecting device by described detection electromagnetic valve;
Described control device is bled electromagnetic valve and described detection electromagnetic valve described in connecting, for the open and close of bleed described in controlling electromagnetic valve and described detection electromagnetic valve.
3. boiler smoke composition according to claim 2 quickly detects sampler, it is characterised in that also includes fly ash loopback device, and connects the flying dust electromagnetic valve of described flue gas separation unit and described fly ash loopback device;
Described control device is also connected with described flying dust electromagnetic valve, for controlling the open and close of described flying dust electromagnetic valve;
Described fly ash loopback device is also connected with described boiler flue, for the cinder reinjection after being separated by flying dust in described flue gas separation unit when described flying dust electromagnetic valve is opened to described boiler flue.
4. boiler smoke composition according to claim 3 quickly detects sampler, it is characterised in that described control device is also connected with described air extractor, controls the open and close of described air extractor.
5. boiler smoke composition according to claim 1 quickly detects sampler, it is characterised in that described air extractor is also connected with described boiler flue, for by continuous drawing to flue gas be recycled to described boiler flue.
6. boiler smoke composition according to claim 1 quickly detects sampler, it is characterised in that described stack sampling pipe is evenly arranged on described boiler flue.
7. boiler smoke composition according to claim 1 quickly detects sampler, it is characterised in that described flue gas separation unit, described connecting tube are all identical with the quantity of described stack sampling pipe, and relative set one to one.
8. boiler smoke composition according to claim 7 quickly detects sampler, it is characterised in that the quantity of described air extractor is 1, and each described connecting tube is all connected with described air extractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934589.2U CN205301014U (en) | 2015-11-19 | 2015-11-19 | Boiler flue gas composition short -term test sampling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934589.2U CN205301014U (en) | 2015-11-19 | 2015-11-19 | Boiler flue gas composition short -term test sampling system |
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| Publication Number | Publication Date |
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| CN205301014U true CN205301014U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520934589.2U Expired - Fee Related CN205301014U (en) | 2015-11-19 | 2015-11-19 | Boiler flue gas composition short -term test sampling system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966334A (en) * | 2018-01-16 | 2018-04-27 | 国电环境保护研究院 | A kind of fire coal boiler fume sampling system and sampling method |
| CN112858584A (en) * | 2021-01-08 | 2021-05-28 | 艾尔燃烧技术(杭州)有限公司 | Boiler flue gas detection equipment |
| CN114814097A (en) * | 2022-04-21 | 2022-07-29 | 广东信科检测有限公司 | Boiler flue gas detection device and detection method |
-
2015
- 2015-11-19 CN CN201520934589.2U patent/CN205301014U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966334A (en) * | 2018-01-16 | 2018-04-27 | 国电环境保护研究院 | A kind of fire coal boiler fume sampling system and sampling method |
| CN107966334B (en) * | 2018-01-16 | 2024-03-22 | 国电环境保护研究院有限公司 | Flue gas sampling system and sampling method for coal-fired boiler |
| CN112858584A (en) * | 2021-01-08 | 2021-05-28 | 艾尔燃烧技术(杭州)有限公司 | Boiler flue gas detection equipment |
| CN114814097A (en) * | 2022-04-21 | 2022-07-29 | 广东信科检测有限公司 | Boiler flue gas detection device and detection method |
| CN114814097B (en) * | 2022-04-21 | 2024-04-23 | 广东信科检测有限公司 | Boiler flue gas detection device and detection method |
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