CN207923537U - A kind of gas fired-boiler smoke sampling system - Google Patents
A kind of gas fired-boiler smoke sampling system Download PDFInfo
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- CN207923537U CN207923537U CN201820066517.4U CN201820066517U CN207923537U CN 207923537 U CN207923537 U CN 207923537U CN 201820066517 U CN201820066517 U CN 201820066517U CN 207923537 U CN207923537 U CN 207923537U
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- sampling
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- boiler smoke
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- flue gas
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- 238000005070 sampling Methods 0.000 title claims abstract description 123
- 239000000779 smoke Substances 0.000 title claims abstract description 37
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000003546 flue gas Substances 0.000 claims abstract description 46
- 239000007789 gas Substances 0.000 claims abstract description 30
- 239000000112 cooling gas Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000000523 sample Substances 0.000 description 31
- 239000003517 fume Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model is related to a kind of gas fired-boiler smoke sampling system, sample connection includes at least two, and in sampling, sample connection is spaced apart on flue cross section perpendicular to flow of flue gas direction；Sampling line, sampling line are arranged in a one-to-one correspondence with sample connection, the first end of every sampling line with and itself corresponding sample connection be connected, and first switch valve is provided on every sampling line；Sampler barrel is connected to the second end of each sampling line, and sampler barrel is extended with an outlet, and outlet with flue gas analyzer for connecting.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 gas fired-boiler smoke 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《Energy development " 13 " is planned》And the transformations such as related energy-saving and emission-reduction
Programme of work related request, plant gas are both needed 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
The purpose of this utility model is to provide a kind of gas fired-boiler smoke sampling system, so as to easy to gas-fired boiler
The high-temperature flue gas of stove is accurately sampled, to analyze smoke components.
In order to achieve the above objectives, gas fired-boiler smoke 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 flow of flue gas
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 with first switch valve on the every sampling line；
Sampler barrel, the sampler barrel is connected to the second end of each sampling line, and the sampler barrel is extended with
One outlet, the outlet with flue gas analyzer for connecting.
Preferably, further include the sampling manifold being connected to inside first end and the sampler barrel, every sampling line
Second end is all connected on the sampling manifold.
Preferably, the first switch valve is the triple valve being serially connected on the sampling line, and the triple valve is carried and opened
It closes, and the first interface of the triple valve and second interface connect with the sampling line respectively, the gas fired-boiler flue gas takes
Sample system further includes：
Wind turbine is sampled, the air outlet of the sampling wind turbine is by pipeline connection to flue, and the second of the sampling manifold
End is connected to the air inlet of the sampling wind turbine；
The connecting line being arranged in a one-to-one correspondence with the triple valve, the first end of each connecting line with and from
The third interface of the corresponding triple valve of body connects, and the second end of each connecting line is connected to the sampling always
Guan Shang；
Second switch valve, the second switch valve are arranged on the sampling manifold, and by all connecting lines
Second end and the second end of all sampling lines separate.
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 on the sampling manifold, second cooler is close to described
Wind turbine setting is sampled, with the cooling gas entered in the sampling wind turbine.
Preferably, the triple valve and the second switch valve are the solenoid valve for being connected to control system.
As can be seen from the above technical solutions, it in the gas fired-boiler smoke sampling system disclosed in the utility model, takes
Sample interface includes multiple, and in sampling, sample connection is spaced apart perpendicular to flow of flue gas direction, each sampling line
On be provided with first switch valve, when first switch valve is opened, flue gas will flow to second end from the first end of sampling line, and
It is flowed into sampler barrel by the second end of sampling line, the outlet being arranged on sampler barrel is used for the fume sample in sampler barrel
It is delivered to flue gas analyzer, to carry out fume component analysis.
The gas fired-boiler smoke sampling system, overcomes and is analyzed at present smoke components only with a flue gas sampling point
The shortcomings that, multilayer can be divided into the flue gas in flue cross section and be sampled, to obtain the ingredient in each layer of flue gas, then
Measurement data is analyzed, measurement data can be made relatively reliable, and more representative；And above-mentioned gas fired-boiler
Smoke sampling system is not necessarily to that multiple sampler barrels and flue gas analyzer is arranged, and is only with a sampler barrel and a flue gas analyzer
Fume component analysis can be carried out to multiple sample position in flue cross section, not only reduce equipment cost, be convenient for plant maintenance
Pipeline reduces equipment cost, and shortens sample time, improves smoke sampling efficiency.
Description of the drawings
Fig. 1 is structural representation of the gas fired-boiler smoke sampling system disclosed in an embodiment of the present invention in sampling
Figure.
Wherein, 1 is sampling line, and 2 be triple valve, and 3 be sampler barrel, and 4 be sampling manifold, and 5 be sampling wind turbine, and 6 be connection
Pipeline, 7 be second switch valve, and 8 be the first cooler, and 9 be the second cooler, and 10 be flue.
Specific implementation mode
The core of the utility model is to provide a kind of gas fired-boiler smoke sampling system, so as to easy to gas-fired boiler
The high-temperature flue gas of stove is accurately sampled, to analyze smoke components.
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.
Please referring initially to Fig. 1, the gas fired-boiler smoke sampling system disclosed in the utility model, including sample connection,
Sampling line 1 and sampler barrel 3, sample connection include at least two, and according to the size of flue cross section, sample connection can be set
Suitable quantity is set, in sampling, sample connection is spaced apart on flue cross section perpendicular to flow of flue gas direction, probe tube
Road 1 and sample connection correspond, the first end of every sampling line 1 with and the corresponding sample connection of the sampling line 1 it is connected,
And first switch valve is additionally provided on every sampling line 1, sampler barrel 3 is connected to the second end of each sampling line 1, and
And sampler barrel 3 is extended with one outlet pipe, the outlet with flue gas analyzer for connecting.
When carrying out smoke sampling, the first switch valve on each sampling line 1 is opened successively, is taken to each to realize
It is sampled at flue position corresponding to sample pipeline 1, flue gas will be entered by sampling line 1 in sampler barrel 3, then be passed through
Set outlet, which send flue gas into flue gas analyzer, on sampler barrel 3 carries out fume component analysis.
Gas fired-boiler smoke sampling system in above-described embodiment overcomes at present only with a flue gas sampling point to flue gas
The shortcomings that ingredient is analyzed can be divided into multilayer to the flue gas in flue cross section and be sampled, to obtain each layer of flue gas
In ingredient, then measurement data is analyzed, measurement data can be made relatively reliable, and more representative；And
And above-mentioned gas fired-boiler smoke sampling system is not necessarily to that multiple sampler barrels 3 and flue gas analyzer is arranged, only with 3 He of sampler barrel
One flue gas analyzer can carry out fume component analysis to multiple sample position in flue cross section, not only reduce equipment at
This, is convenient for plant maintenance pipeline, reduces equipment cost, and shorten sample time, improve smoke sampling efficiency.
It will be appreciated by persons skilled in the art that the second end of sampling line 1 can be connected directly between on sampler barrel 3,
It to realize the connection between sampling line 1 and sampler barrel 3, can be also connected to indirectly with sampler barrel 3 by intermediate connector, at this
In embodiment, it is also provided with sampling manifold 4, samples and is connected to inside first end and the sampler barrel 3 of manifold 4, every sampling line 1
Second end is both connected on sampling manifold 4.
In order to advanced optimize, in the present embodiment, first switch valve is the triple valve 2 being serially connected on sampling line 1, three
Port valve 2 is with switch, and the first interface of triple valve 2 and second interface connect with sampling line 1 respectively, in addition to this, should
Gas fired-boiler smoke sampling system further includes sampling wind turbine 5, connecting line 6 and second switch valve 7, wherein sampling wind turbine 5
Air outlet is by the way that in pipeline connection to flue 10, the second end of sampling manifold 4 is connected to the air inlet of sampling wind turbine 5, connecting tube
Road 6 is arranged in a one-to-one correspondence with triple valve 2, the first end triple valve corresponding with the connecting line 6 of each connecting line 6
2 third interface connects, and the second end of each connecting line 6 is connected on sampling manifold 4, and the setting of second switch valve 7 exists
Sample on manifold 4, and second switch valve 7 by the second end of all connecting lines 6 and the second end of all sampling lines 1 every
It opens.
Referring to FIG. 1, under the action of sampling wind turbine 5, the part not being sampled in flue, flue gas is from sample connection
Into in sampling line 1, then by being back in flue after connecting line 6, sampling manifold 4, sampling wind turbine 5, followed in flue gas
During ring, the flue gas for not being sampled position in flue can be avoided to impact the flue gas just in sample position, to
Ensure to realize sampling during flue gas can be layered into sampler barrel 3.
At the same time, after increasing second switch valve 7, the permutation function of flue gas is also achieved, when a piece probe tube of completion
In road 1 after the sampling of flue gas, in order to avoid the flue gas being trapped in sampler barrel 3 causes the smoke components in next probe tube
Influence, the triple valve 2 on second switch valve 7 and the sampling line that will be sampled 1 can be opened, with reference to figure 1 it is found that through
It crosses after the displacement of predetermined time and will complete the displacement of flue gas, second switch valve 7 is closed after completing displacement and carry out smoke sampling i.e.
It can.
In order to be cooled down to flue gas, the first cooler 8, the first cooler 8 are also serially connected on any one probe tube
Between sample connection and triple valve 2, to facilitate selection triple valve 2, it is, of course, also possible to close to the position of sampling wind turbine 5
Second cooler 9 is set, and so as to the cooling gas entered in sampling wind turbine 5, protection sampling wind turbine 5 is not damaged by high-temperature gas
It is bad.
Preferably, triple valve 2 and second switch valve 7 are controlled by control system, in flue gas inspection technical field
In, controller is DCS (Distributed Control System dcs), under the control of DCS, triple valve
2 realize opening and closing, and to be sampled successively to 12 corresponding position of each sampling line, second switch valve 7 is by beating on and off
Action is closed, realizes gas sample and gas displacement.
Gas fired-boiler smoke sampling system disclosed in an embodiment of the present invention and gas fired-boiler smoke sampling side
In method, Stratified Sampling is carried out to the flue gas in flue by the sample connection of spaced apart, and convey by the same sampler barrel 3
To being analyzed in flue gas analyzer, entire gas fired-boiler smoke sampling system structure is simple, and equipment operation is low with maintenance cost,
And simple to operate, reliable measuring data.
Gas fired-boiler smoke 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 (6)
1. a kind of gas fired-boiler smoke 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 (1), the sampling line (1) are arranged in a one-to-one correspondence with the sample connection, the every sampling line (1)
First end with and itself corresponding sample connection be connected, and be provided with first switch on the every sampling line (1)
Valve；
Sampler barrel (3), the sampler barrel (3) is connected to the second end of each sampling line (1), and the sampler barrel
(3) it is extended with an outlet, the outlet with flue gas analyzer for connecting.
2. gas fired-boiler smoke sampling system according to claim 1, which is characterized in that further include that first end takes with described
The sampling manifold (4) being connected to inside sample cylinder (3), the second end of the every sampling line (1) are all connected to the sampling manifold
(4) on.
3. gas fired-boiler smoke sampling system according to claim 2, which is characterized in that the first switch valve is concatenation
In the triple valve (2) on the sampling line (1), the triple valve (2) is with switch, and the first of the triple valve (2) connects
Mouth and second interface connect with the sampling line (1) respectively, and the gas fired-boiler smoke sampling system further includes：
Sample wind turbine (5), the air outlet of the sampling wind turbine (5) by pipeline connection to flue, the sampling manifold (4)
Second end is connected to the air inlet of the sampling wind turbine (5)；
The first end of the connecting line (6) being arranged in a one-to-one correspondence with the triple valve (2), each connecting line (6) is equal
Connect with the third interface of the triple valve (2) corresponding with itself, the second end of each connecting line (6) is all connected with
On to the sampling manifold (4)；
Second switch valve (7), the second switch valve (7) are arranged on the sampling manifold (4), and by all connecting tubes
The second end on road (6) and the second end of all sampling lines (1) separate.
4. gas fired-boiler smoke sampling system according to claim 3, which is characterized in that any one sampling line
(1) the first cooler (8) is also serially connected on, and first cooler (8) is located at the sample connection and the triple valve (2)
Between.
5. gas fired-boiler smoke sampling system according to claim 3, which is characterized in that further include being serially connected in the sampling
The second cooler (9) on manifold (4), second cooler (9) are arranged close to the sampling wind turbine (5), are entered with cooling
Gas in the sampling wind turbine (5).
6. gas fired-boiler smoke sampling system according to claim 3, which is characterized in that the triple valve (2) and institute
It is the solenoid valve for being connected to control system to state second switch valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820066517.4U CN207923537U (en) | 2018-01-16 | 2018-01-16 | A kind of gas fired-boiler smoke sampling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820066517.4U CN207923537U (en) | 2018-01-16 | 2018-01-16 | A kind of gas fired-boiler smoke sampling system |
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| Publication Number | Publication Date |
|---|---|
| CN207923537U true CN207923537U (en) | 2018-09-28 |
Family
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|---|---|---|---|
| CN201820066517.4U Active CN207923537U (en) | 2018-01-16 | 2018-01-16 | A kind of gas fired-boiler smoke sampling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007731A (en) * | 2018-01-16 | 2018-05-08 | 国电环境保护研究院有限公司 | A kind of gas fired-boiler smoke sampling system and smoke sampling method |
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2018
- 2018-01-16 CN CN201820066517.4U patent/CN207923537U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007731A (en) * | 2018-01-16 | 2018-05-08 | 国电环境保护研究院有限公司 | A kind of gas fired-boiler smoke sampling system and smoke sampling method |
| CN108007731B (en) * | 2018-01-16 | 2024-03-22 | 国电环境保护研究院有限公司 | Gas boiler flue gas sampling system and flue gas sampling method |
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