CN207923544U - A kind of fire coal boiler fume sampling system - Google Patents
A kind of fire coal boiler fume sampling system Download PDFInfo
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- CN207923544U CN207923544U CN201820066362.4U CN201820066362U CN207923544U CN 207923544 U CN207923544 U CN 207923544U CN 201820066362 U CN201820066362 U CN 201820066362U CN 207923544 U CN207923544 U CN 207923544U
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- 238000005070 sampling Methods 0.000 title claims abstract description 131
- 239000003517 fume Substances 0.000 title claims abstract description 33
- 239000003245 coal Substances 0.000 title claims abstract description 26
- 239000000428 dust Substances 0.000 claims abstract description 54
- 239000000523 sample Substances 0.000 claims abstract description 47
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000003546 flue gas Substances 0.000 claims abstract description 38
- 238000004062 sedimentation Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000000779 smoke Substances 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model is related to a kind of fire coal boiler fume sampling systems, and sample connection includes at least two, and is spaced apart perpendicular to flue gas flow direction；The first end of sampling line is connected with sample connection, and triple valve is additionally provided on every sampling line；A sampling manifold is stretched out on sampler barrel, sampling manifold is connected to the second end of each probe tube, and the outlet stretched out on sampler barrel is connect with flue gas analyzer；Dust settling cylinder is connected to sampling manifold；The first end of connecting line connects with triple valve, and second end is connected with dust settling cylinder；Switch valve setting samples the outlet of fan assembly one end and dust settling cylinder, is connected to inside the other end and flue on sampling manifold.The utility model not only reduces equipment cost, is convenient for plant maintenance pipeline, reduces equipment cost, and shorten sample time, improve smoke sampling efficiency.
Description
Technical field
The utility model is related to fume component analysis technical field, more particularly to a kind of fire coal boiler fume sampling system.
Background technology
Current China's environmental improvement arduous task, national minimum discharge, which is being expanded, encloses speed-raising, and energy-saving and emission-reduction requirement is increasingly tight
Lattice.
It is issued according to National Development and Reform Committee, Bureau of Energy, Chinese Ministry of Environmental Protection《Coal electricity energy-saving and emission-reduction upgrade and transformation action plan
(2014-2020)》And《Implement in full coal-burning power plant's minimum discharge and reducing energy consumption programme of work》Related request, coal-fired electricity
Factory need to realize flue gas minimum discharge.
In fact, with the variation that time, load, combustion state change, flue gas flow rate and flow field can also occur significantly
Variation, conventional flue gas measure sampler and only acquire single measurement data, do not have representativeness, and flue interior flow field is complicated, single
Smoke components measured by a position easy to produce deviation.
Currently, there is no the sampler accurately sampled for high-temperature flue gas measurement or sampling system both at home and abroad,
Therefore developing practical smoke sampling system becomes the pass for carrying out analysis of high-temperature flue gas realization and understanding Actual combustion situation
Key.
Utility model content
One of the purpose of this utility model is to provide a kind of fire coal boiler fume sampling system, so as to easy to combustion
The high-temperature flue gas of coal burning boiler is accurately sampled.
In order to achieve the above objectives, fire coal boiler fume sampling system provided by the utility model, including：
Sample connection, the sample connection include at least two, and in sampling, the sample connection is perpendicular to flue gas
Flow direction is spaced apart；
Sampling line, the sampling line are arranged in a one-to-one correspondence with the sample connection, and the of the every sampling line
One end with and itself corresponding sample connection be connected, and be provided on the every sampling line with switch threeway
Valve；
Sampler barrel, the sampler barrel stretch out a sampling manifold, the sampling manifold and the second of each sampling line
End is connected to, and the sampler barrel is extended with an outlet, and the outlet with flue gas analyzer for connecting；
Dust settling cylinder, the sedimentation chamber of the dust settling cylinder are connected to the sampling manifold；
Connecting line, the connecting line are arranged in a one-to-one correspondence with the triple valve, and the of each connecting line
One end connects with the triple valve corresponding with itself, the second end of each connecting line with the dust settling
The sedimentation chamber of cylinder is connected；
Setting is isolated on the sampling manifold, and by the dust settling cylinder with the second end of all sampling lines
Switch valve；
Sample fan assembly, it is described sampling fan assembly one end and the dust settling cylinder outlet, the other end and
Connection inside flue, in sampling, the sampling fan assembly is dynamic for being provided for the connecting line and the sampling line
Power.
Preferably, the sampling fan assembly includes：
It is serially connected with the main line of sampling wind turbine, the main line includes the outlet air master being connected with the sampling fan outlet
It manages, and the air inlet main pipe being connected with the sampling air inlet；
The settlement barrel export pipeline that one end is connected with the outlet of the dust settling cylinder, the settlement barrel export pipeline it is another
One end branches into the first branch pipe and the second branch pipe, wherein first branch pipe is connected to the air inlet main pipe, first branch pipe
On be provided with the first shut-off valve, second branch pipe is connected to outlet air supervisor, and second section is provided on first branch pipe
Only valve；
The flue entrance pipeline being connected to inside one end and the flue, the other end of the flue entrance pipeline branch into the
Three branch pipes and the 4th branch pipe are provided with third wherein the third branch pipe is connected to the air inlet main pipe on the third branch pipe
Shut-off valve, the 4th branch pipe are connected to outlet air supervisor, and the 4th shut-off valve is provided on the 4th branch pipe.
Preferably, the first cooler is also serially connected on any one sampling line, and first cooler is located at
Between the sample connection and the triple valve.
Preferably, further include the second cooler being serially connected in the air inlet main pipe.
Preferably, the triple valve, the switch valve are the solenoid valve for being connected to control system.
Preferably, first shut-off valve, the second shut-off valve, third shut-off valve and the 4th shut-off valve are connection
To the solenoid valve of the control system.
Preferably, it is additionally provided with level-sensing device in the dust settling cylinder, the dust height in the dust settling cylinder reaches
When to preset value, driving device drives the drain valve of the dust settling cylinder to open release dust.
Preferably, it is additionally provided with manual dust emission mouth on the dust settling cylinder.
As can be seen from the above technical solutions, it in the fire coal boiler fume sampling system disclosed in the utility model, takes
Sample interface includes multiple, and when being sampled, and sample connection is spaced apart perpendicular to flue gas flow direction, Mei Yigen
Triple valve is provided on sampling line, when triple valve is opened, the negative pressure power that can be provided by sampling fan assembly makes
Flue gas enters in sampling line and connecting line, and the fume sample entered in sampling line will go into sampler barrel, and
It is delivered to flue gas analyzer by the outlet of sampler barrel and carries out fume component analysis, by opening the threeway on different probe tubes
Valve may be implemented to be sampled the flue gas of position corresponding to each sample connection and analyze, and dust settling cylinder can make flue gas
In dust settling get off, damaged to avoid to wind turbine.
It can be seen that the fire coal boiler fume sampling system disclosed in the utility model, overcomes at present only with one
The shortcomings that a flue gas sampling point analyzes smoke components can be divided into multilayer to the flue gas in flue cross section and be sampled, from
And the ingredient in each layer of flue gas is obtained, then measurement data is analyzed, can to keep measurement data relatively reliable, and
And it is more representative；And above-mentioned fire coal boiler fume sampling system takes it is not necessary that multiple flue gas analyzers are arranged only with one
Sample cylinder and a flue gas analyzer can carry out fume component analysis to multiple sample position in flue cross section, not only reduce
Equipment cost is convenient for plant maintenance pipeline, reduces equipment cost, and shorten sample time, improves smoke sampling effect
Rate.
Description of the drawings
Fig. 1 is fire coal boiler fume sampling system disclosed in an embodiment of the present invention in fume extraction state
Structural schematic diagram；
Fig. 2 is fire coal boiler fume sampling system disclosed in an embodiment of the present invention when pipeline purges state
Structural schematic diagram；
Fig. 3 is the partial structural diagram of the sampling fan assembly in Fig. 1；
Fig. 4 is the partial structural diagram of the sampling fan assembly in Fig. 2.
Wherein, 1 is sample connection, and 2 be sampling line, and 3 be triple valve, and 4 be sampler barrel, and 5 be sampling manifold, and 6 be outlet
Pipe, 7 be dust settling cylinder, and 8 be connecting line, and 9 be switch valve, and 10 be settlement barrel export pipeline, and 11 be the first shut-off valve, and 12 are
Second cooler, 13 be sampling wind turbine, and 14 be flue entrance pipeline, and 15 be flue, and 16 be the first cooler, and 17 be the second cut-off
Valve, 18 be third shut-off valve, and 19 be the 4th shut-off valve.
Specific implementation mode
The core of the utility model is to provide a kind of fire coal boiler fume sampling system, so as to easy to coal-fired pot
The high-temperature flue gas of stove is accurately sampled.
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.
It please refers to Fig.1 and Fig. 2, in the fire coal boiler fume sampling system disclosed in the utility model, including sampling connects
Mouth 1, sampling line 2, sampler barrel 4, dust settling cylinder 7, connecting line 8, switch valve 9 and sampling 13 component of wind turbine, specifically,
Sample connection 1 is at least arranged two according to the size of flue cross section, and when carrying out smoke sampling, sample connection 1 is in cigarette
Road cross section upper edge is spaced apart on the direction that flue gas flows, to realize that carrying out layering to the flue gas in flue takes
Sample；Sampling line 2 is correspondingly arranged with sample connection 1, and each sample connection 1 individually corresponds to a sampling line 2, every probe tube
The first end on road 2 with and the corresponding sample connection 1 of the sampling line 2 be connected, and be provided with belt switch on every sampling line 2
Triple valve 3；A sampling manifold 5 is stretched out on sampler barrel 4, as shown in Figures 1 and 2, sampling manifold 5 is preferably located on
The bottom of sampler barrel 4, sampling manifold 5 is connected to the second end of each sampling line 2, and the sampler barrel 4 is also extended with one
A outlet 6, the outlet 6 with flue gas analyzer for connecting, to analyze the flue gas being collected into；
The effect of dust settling cylinder 7 is that the dust in sedimentation flue gas, dust settling cylinder 7 have sedimentation chamber, the sedimentation chamber
It is connected to sampling manifold 5；Connecting line 8 is arranged in a one-to-one correspondence with triple valve 3, the first end of every connecting line 8 with and this
8 corresponding triple valve 3 of connecting line connects, the second end of each connecting line 8 with the sedimentation chamber phase of dust settling cylinder 7
Even；Dust settling cylinder 7 is isolated with the second end of sampling line 2 on sampling manifold 5 for the setting of switch valve 9；Sample wind turbine
It is connected to inside the outlet of one end and dust settling cylinder 7 of 13 components, the other end and flue, in sampling, samples wind turbine 13
Component is used to provide negative pressure for connecting line 8 and sampling line 2.
According to the size of flue cross section, suitable quantity can be arranged in sample connection 1, more preferably, each to sample
A filter screen is arranged in 1 position of interface, and to filter particulate matter larger in flue gas, please referring initially to Fig. 1, Fig. 1 is cold except first
But the arrow at device 16 and the second cooler 12, remaining arrow represent flue gas flow direction, according to the The concrete specification of flue cross section,
The quantity of sample connection 1 is set, to be layered the fume sample for obtaining entire flue end face, keeps measurement data representative,
Triple valve 3 extracts flue gas, opens successively in order as the flow shifting device during smoke sampling, sampling 13 component of wind turbine
The wherein triple valve 3 on sampling line 2 all the way, makes the part of smoke sample in sampling line 2 enter in sampler barrel 4, so
The fume sample in the sampling line 2 is sent into flue gas analyzer afterwards and carries out fume component analysis.
Preferably, triple valve 3 is solenoid valve, and solenoid valve, sampling 13 component of wind turbine etc. are controlled by the controller, in flue gas inspection
In technical field, controller is DCS (Distributed Control System dcs), in the control of DCS
Under, triple valve 3, which is realized, to be opened and closed, to be sampled successively to 2 corresponding position of a sampling line.
In sampling process, flue gas passes through sample connection 1, sampling line 2, connecting line 8, dust settling cylinder 7, sampling wind turbine
Enter flue after 13 components and realize cycle, in cyclic process, part of smoke sample will be entered by sampling line 2 and be taken
In sample cylinder 4, it is provided with level-sensing device in dust settling cylinder 7, when the dust height in dust settling cylinder 7 reaches preset value, DCS is logical
It crosses the drain valve controlled the driving device to drive dust settling cylinder 7 to open, to discharge dust, dust closes discharge after draining
Valve, as shown in fig. 1, drain valve are arranged in the bottom of dust settling cylinder 7.
Further, manual dust emission mouth is additionally provided on dust settling cylinder 7, which can be
One opening for carrying lid, can also be and flange-interface is arranged in the lower part of dust settling cylinder 7, be generated in dust settling cylinder 7 stifled
Flange-interface is opened when plug carries out hand-driven dust.
It needs to illustrate, after completing the gas sample work in a sampling line 2, be had in sampler barrel 4
Residual gas needs advanced row gas displacement in order to avoid being impacted to the gas in next sampling line 2, specifically, will
Switch valve 9 is opened, and the triple valve 3 on the sampling line 2 being sampled will be needed to open, and then replaces the regular hour, from
And gas displacement is completed, sampling can be re-started by turning off the switch valve 9 after completion gas displacement.
As shown in Figures 3 and 4, sampling 13 component of wind turbine includes that main line, settlement barrel export pipeline 10 and flue enter
Mouthful pipeline 14 is serially connected with sampling wind turbine 13 on main line, and main line includes the outlet air supervisor being connected with sampling 13 air outlet of wind turbine,
The air inlet main pipe being connected with sampling 13 air inlet of wind turbine；The outlet of one end and dust settling cylinder 7 of settlement barrel export pipeline 10
It is connected, the other end of settlement barrel export pipeline 10 branches into the first branch pipe and the second branch pipe, and the first branch pipe is connected to air inlet main pipe,
The first shut-off valve 11 is provided on first branch pipe, the second branch pipe is connected to outlet air supervisor, and the second cut-off is provided on the second branch pipe
Valve 17；It is connected to inside one end of flue entrance pipeline 14 and flue, the other end branches into third branch pipe and the 4th branch pipe, third branch
Pipe is connected to air inlet main pipe, and third shut-off valve 18 is provided on third branch pipe, and the 4th branch pipe is connected to outlet air supervisor, the 4th branch pipe
On be provided with the 4th shut-off valve 19.
This kind of mode enables the flue gas in entire fire coal boiler fume sampling system to commutate, to reach sampling
It is the structural schematic diagram of the fume extraction state in sampling in Fig. 1 with the purpose of pipeline purging, the first shut-off valve 11 and the at this time
Four shut-off valves 19 are in the state opened, and the second shut-off valve 17 and third shut-off valve 18 are closed；It is blown for pipeline in Fig. 2
Structural schematic diagram when state is swept, the second shut-off valve 17 and third shut-off valve 18 are in the open state at this time, the first shut-off valve 11
It is closed with the 4th shut-off valve 19, under the action of sampling wind turbine 13, flue gas is flowed out out of flue, through over sampling wind turbine
It is reversely flowed into after 13 in dust settling cylinder 7, connecting line 8 and sampling line 2, it is clear to be carried out for the dust stratification in pipeline
Reason, it can be seen that, when pipeline purges, sampling fan assembly is used to provide positive pressure for connection management 8 and sampling line 2
Further, the first cooler 16 is also serially connected on any one sampling line 2, the first cooler 16, which is located at, to be taken
Between sample interface 1 and triple valve 3, it is, of course, also possible to the second cooler 12 is set in air inlet main pipe, the first cooler 16 and
There is cooling medium circulation to flow in two coolers 12, as shown in Figures 1 and 2.
During being sampled, the temperature of the flue gas after the first cooler 16 is usually made to be down to 120 DEG C or so, with
The suitable triple valve 3 of selection, the temperature of the flue gas after the second cooler 12 is facilitated to be down to 50 DEG C, so as to sampling wind turbine
13 are protected；Sampling wind turbine 13,2 caliber of sampling line etc. need to carry out Aided design, to ensure that the flow velocity of gas, pipeline hinder
The power match of power and sampling wind turbine 13, gas flow uniform are smooth.
Certainly, in order to improve the degree of automation of fire coal boiler fume sampling system, switch valve 9, the first shut-off valve 11,
Two shut-off valves 17, third shut-off valve 18 and the 4th shut-off valve 19 are also using the solenoid valve controlled by DCS.
Fire coal boiler fume sampling system provided by the utility model is described in detail above.It is used herein
Specific case is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help
Understand the method and its core concept of the utility model.It should be pointed out that for those skilled in the art,
Under the premise of not departing from the utility model principle, several improvements and modifications can be made to this utility model, these improve and
Modification is also fallen into the protection domain of the utility model claims.
Claims (8)
1. a kind of fire coal boiler fume sampling system, which is characterized in that including：
Sample connection, the sample connection include at least two, and in sampling, the sample connection is perpendicular to flow of flue gas direction
It is spaced apart；
Sampling line (2), the sampling line (2) are arranged in a one-to-one correspondence with the sample connection, the every sampling line (2)
First end with and itself corresponding sample connection be connected, and be provided on the every sampling line (2) with switch
Triple valve (3)；
Sampler barrel (4), the sampler barrel (4) stretch out a sampling manifold (5), the sampling manifold (5) and each probe tube
The second end on road (2) is connected to, and the sampler barrel (4) is extended with an outlet (6), and the outlet (6) is used for and flue gas
Analyzer connects；
Dust settling cylinder (7), the sedimentation chamber of the dust settling cylinder (7) are connected to the sampling manifold (5)；
Connecting line (8), the connecting line (8) are arranged in a one-to-one correspondence with the triple valve (3), each connecting line
(8) first end connects with the triple valve (3) corresponding with itself, and the second end of each connecting line (8) is equal
It is connected with the sedimentation chamber of the dust settling cylinder (7)；
It is arranged on the sampling manifold (5), and by the second of the dust settling cylinder (7) and all sampling lines (2)
Hold the switch valve (9) of isolation；
Sampling wind turbine (13) component, the outlet of described sampling wind turbine (13) component one end and the dust settling cylinder (7), separately
Be connected to inside one end and flue, in sampling, sampling wind turbine (13) component is for being the connecting line (8) and described taking
Sample pipeline (2) provides power.
2. fire coal boiler fume sampling system according to claim 1, which is characterized in that sampling wind turbine (13) component
Including：
It is serially connected with the main line of sampling wind turbine (13), the main line includes going out with what described sampling wind turbine (13) air outlet was connected
Wind is responsible for, and the air inlet main pipe being connected with described sampling wind turbine (13) air inlet；
The settlement barrel export pipeline (10) that one end is connected with the outlet of the dust settling cylinder (7), the settlement barrel export pipeline
(10) the other end branches into the first branch pipe and the second branch pipe, wherein first branch pipe is connected to the air inlet main pipe, described
The first shut-off valve (11) is provided on first branch pipe, second branch pipe is connected to outlet air supervisor, on second branch pipe
It is provided with the second shut-off valve (17)；
The flue entrance pipeline (14) being connected to inside one end and the flue, the other end branch of the flue entrance pipeline (14)
It is provided on the third branch pipe for third branch pipe and the 4th branch pipe wherein the third branch pipe is connected to the air inlet main pipe
Third shut-off valve (18), the 4th branch pipe are connected to outlet air supervisor, and the 4th shut-off valve is provided on the 4th branch pipe
(19)。
3. fire coal boiler fume sampling system according to claim 2, which is characterized in that any one sampling line
(2) the first cooler (16) is also serially connected on, and first cooler (16) is located at the sample connection and the triple valve
(3) between.
4. fire coal boiler fume sampling system according to claim 2, which is characterized in that further include being serially connected in the air inlet
The second cooler (12) on supervisor.
5. fire coal boiler fume sampling system according to claim 2, which is characterized in that the triple valve (3) described is opened
It is the solenoid valve for being connected to control system to close valve (9).
6. fire coal boiler fume sampling system according to claim 2, which is characterized in that first shut-off valve (11),
Second shut-off valve (17), third shut-off valve (18) and the 4th shut-off valve (19) are the electromagnetism for being connected to control system
Valve.
7. fire coal boiler fume sampling system according to claim 1, which is characterized in that in the dust settling cylinder (7)
It is additionally provided with level-sensing device, when the dust height in the dust settling cylinder (7) reaches preset value, driving device drives the powder
The drain valve of dirt settlement barrel (7) opens release dust.
8. fire coal boiler fume sampling system according to claim 7, which is characterized in that on the dust settling cylinder (7)
It is additionally provided with manual dust emission mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820066362.4U CN207923544U (en) | 2018-01-16 | 2018-01-16 | A kind of fire coal boiler fume sampling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820066362.4U CN207923544U (en) | 2018-01-16 | 2018-01-16 | A kind of fire coal boiler fume sampling system |
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| Publication Number | Publication Date |
|---|---|
| CN207923544U true CN207923544U (en) | 2018-09-28 |
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| CN201820066362.4U Active CN207923544U (en) | 2018-01-16 | 2018-01-16 | A kind of fire coal boiler fume sampling system |
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Cited By (2)
| 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 |
| CN112933850A (en) * | 2021-03-05 | 2021-06-11 | 苏州西热节能环保技术有限公司 | Pretreatment device for flue gas measurement |
-
2018
- 2018-01-16 CN CN201820066362.4U patent/CN207923544U/en active Active
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 |
| 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 |
| CN112933850A (en) * | 2021-03-05 | 2021-06-11 | 苏州西热节能环保技术有限公司 | Pretreatment device for flue gas measurement |
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