CN212622469U - Follow-on fume emission continuous monitoring system - Google Patents
Follow-on fume emission continuous monitoring system Download PDFInfo
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- CN212622469U CN212622469U CN202021043065.1U CN202021043065U CN212622469U CN 212622469 U CN212622469 U CN 212622469U CN 202021043065 U CN202021043065 U CN 202021043065U CN 212622469 U CN212622469 U CN 212622469U
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- Prior art keywords
- flue gas
- sampling
- flue
- monitoring system
- continuous monitoring
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 239000003517 fume Substances 0.000 title abstract description 9
- 238000005070 sampling Methods 0.000 claims abstract description 49
- 239000003546 flue gas Substances 0.000 claims abstract description 36
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 9
- 231100000719 pollutant Toxicity 0.000 abstract description 9
- 238000004868 gas analysis Methods 0.000 abstract description 5
- 239000000779 smoke Substances 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
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Abstract
The utility model relates to a follow-on fume emission continuous monitoring system, collect chamber, flue gas analysis appearance including flue gas sampling tube, flue gas, apply the grid method at sampling point place flue plane and set up a plurality of sampling points, a sampling tube is all connected at every sampling point, and the export of a plurality of sampling tubes all is connected to one and collects the chamber, should collect the exit linkage flue gas analysis appearance in chamber. The utility model discloses can real-time automatic adjustment the flue gas flow in every sampling tube, considered pollutant in the flue inhomogeneous and the inhomogeneous influence of flue gas flow distribution, more can reflect the discharge situation of actual pollutant, obtain the more accurate discharge numerical value of thermal power unit.
Description
Technical Field
The utility model belongs to the technical field of the distributed control system control, a fume emission monitoring technology is related to, especially a follow-on fume emission continuous monitoring system.
Background
In recent years, the problem of air pollution in China is more and more emphasized, and the emission condition of smoke of a thermal power unit serving as one of main air pollution sources is more and more strictly controlled. At present, a continuous flue gas emission monitoring system (CEMS) is widely applied to thermal power generating units, can monitor gaseous pollutants and particulate matters emitted by the units in real time, and transmits information to an environmental protection department in real time. Currently, the flue gas CEMS can be divided into three types according to the measurement mode: the system comprises an extraction type monitoring system, an on-site monitoring system and a remote measuring system, wherein the three modes are only provided with one sampling point for measurement, however, the smoke components at each point in a flue are not uniformly distributed, the smoke flow is not uniformly distributed, and the actual pollutant emission condition cannot be obtained by only measuring one sampling point.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a follow-on smoke emission continuous monitoring system, can be in real time the flue gas flow in the every sampling tube of automatic adjustment, this system has considered the inhomogeneous and inhomogeneous influence of flue gas flow distribution of flue gas pollutant concentration distribution, can more accurately reflect out the discharge situation of actual pollutant.
The utility model provides a technical scheme that technical problem adopted is:
the utility model provides a follow-on fume emission continuous monitoring system, collects chamber, flue gas analysis appearance including flue gas sampling tube, flue gas, utilizes the grid method to set up a plurality of sampling points at sampling point place flue plane, and a sampling tube is all connected to every sampling point, and the export of a plurality of sampling tubes all is connected to one and collects the chamber, should collect the exit linkage flue gas analysis appearance in chamber.
And each sampling pipe is provided with a flow control valve and a flow sensor and is connected with a flow controller, and the flow controller controls the opening of the flow control valve in real time according to different flows in each sampling pipe, so that the flow in each sampling pipe is always kept the same.
And the number and the distribution of sampling points in the flue plane are specifically set according to the size and the shape of the flue plane.
Moreover, the flow control valve is a high-precision automatic gas flow control valve.
The utility model has the advantages that:
the utility model discloses current fume emission continuous monitoring system's single-point sample relatively, follow-on fume emission continuous monitoring system has adopted the method of multiple spot sample, collect the flue gas of multiple spot sample and measure after the intensive mixing, and automatic control's method has been adopted, can be in real time the flue gas flow in the every sampling tube of automatic adjustment, the influence that pollutant distributes inhomogeneously and flue gas flow distributes inhomogeneously in the flue has been considered, more can react the discharge situation of actual pollutant, obtain the more accurate discharge numerical value of thermal power unit.
Drawings
FIG. 1 is a schematic view of a continuous monitoring system for flue gas emissions;
FIG. 2 is a layout of sampling points in a sampling plane.
1-flue plane 2 where sampling point is located, 3-flue gas sampling tube 4-flue gas collection cavity 5-flue gas analyzer 6-flow control valve 7-flow sensor 8-flow controller
Detailed Description
The present invention will be described in further detail with reference to specific examples, which are provided for illustrative purposes only, and are not intended to be limiting, and the scope of the present invention should not be limited thereby.
The utility model provides an improved generation's fume emission continuous monitoring system, includes that flue gas sampling tube 3, flue gas collect chamber 4, flue gas analysis appearance 5, flow control valve 6, flow sensor 7, flow controller 8, uses the grid method to set up a plurality of sampling points 2 (each dot indicates 1 sampling point) at flue plane 1 that the sampling point is located. Each sampling point is connected with a sampling tube, and the flue gas is extracted through the sampling tube and introduced into the collection cavity 4. Each sampling tube 3 is provided with a flow control valve and a flow sensor and is connected with a flow controller, and the flow controller controls the opening of the flow control valve in real time according to different flows in each sampling tube, so that the flow in each sampling tube is always kept the same. The flue gas extracted from the sampling pipe is fully mixed in the collecting cavity and then introduced into a flue gas analyzer for measuring pollutants.
The number and distribution of sampling points in the flue plane are specifically set according to the size and the shape of the flue plane by a grid method and are executed by referring to the standard GB/T16157-19964.2.4.
The flow control valve is a high-precision automatic gas flow control valve.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the spirit of the present invention, and these modifications and improvements are all within the protection scope of the present invention.
Claims (4)
1. An improved continuous monitoring system for flue gas emission is characterized in that: the sampling device comprises a flue gas sampling tube, a flue gas collection cavity, a flue gas analyzer and a plurality of sampling points, wherein the sampling points are arranged on a flue plane where the sampling points are located by using a grid method, each sampling point is connected with one sampling tube, outlets of the sampling tubes are connected to one collection cavity, and an outlet of the collection cavity is connected with the flue gas analyzer.
2. The improved continuous monitoring system for flue gas emissions according to claim 1, characterized in that: each sampling pipe is provided with a flow control valve and a flow sensor and is connected with a flow controller, and the flow controller controls the opening of the flow control valve in real time according to different flows in each sampling pipe, so that the flow in each sampling pipe is always kept the same.
3. The improved continuous monitoring system for flue gas emissions according to claim 1, characterized in that: the number and distribution of sampling points in the flue plane are specifically set according to the size and shape of the flue plane.
4. The improved continuous monitoring system for flue gas emissions according to claim 2, characterized in that: the flow control valve is a high-precision automatic gas flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021043065.1U CN212622469U (en) | 2020-06-09 | 2020-06-09 | Follow-on fume emission continuous monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021043065.1U CN212622469U (en) | 2020-06-09 | 2020-06-09 | Follow-on fume emission continuous monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212622469U true CN212622469U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202021043065.1U Active CN212622469U (en) | 2020-06-09 | 2020-06-09 | Follow-on fume emission continuous monitoring system |
Country Status (1)
| Country | Link |
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| CN (1) | CN212622469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433272A (en) * | 2021-08-05 | 2021-09-24 | 西安热工研究院有限公司 | Boiler flue gas multi-point drainage mixing detection device |
| CN114755069A (en) * | 2022-06-14 | 2022-07-15 | 安诺克斯(北京)环境科技有限公司 | Dynamic multipoint real-time monitoring system and monitoring method for sampling pipeline |
-
2020
- 2020-06-09 CN CN202021043065.1U patent/CN212622469U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433272A (en) * | 2021-08-05 | 2021-09-24 | 西安热工研究院有限公司 | Boiler flue gas multi-point drainage mixing detection device |
| CN114755069A (en) * | 2022-06-14 | 2022-07-15 | 安诺克斯(北京)环境科技有限公司 | Dynamic multipoint real-time monitoring system and monitoring method for sampling pipeline |
| CN114755069B (en) * | 2022-06-14 | 2022-11-01 | 安诺克斯(北京)环境科技有限公司 | Dynamic multipoint real-time monitoring system of sampling pipeline |
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