CN212275363U - Flue multipoint flue gas sampling device - Google Patents
Flue multipoint flue gas sampling device Download PDFInfo
- Publication number
- CN212275363U CN212275363U CN202020209247.5U CN202020209247U CN212275363U CN 212275363 U CN212275363 U CN 212275363U CN 202020209247 U CN202020209247 U CN 202020209247U CN 212275363 U CN212275363 U CN 212275363U
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- flue
- flue gas
- sampling
- pipeline
- multipoint
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Links
- 238000005070 sampling Methods 0.000 title claims abstract description 51
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000003546 flue gas Substances 0.000 title claims abstract description 40
- 238000012544 monitoring process Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000779 smoke Substances 0.000 abstract description 20
- 238000012360 testing method Methods 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a flue multipoint flue gas sampling device in the field of boiler flue gas monitoring, which comprises a main pipeline, a sampling branch pipe and a sampling head branch pipe, the main pipeline is arranged outside the flue, a plurality of groups of sampling branch pipes which extend into the flue are arranged on the main pipeline, a plurality of sampling head branch pipelines are uniformly distributed on the outer wall of the sampling branch pipeline, electric valves are arranged on the sampling head branch pipelines, a connection interface at the tail end of the main pipeline is connected with a monitoring pipeline, a smoke pump is arranged on the monitoring pipeline, the electric valve and the smoke pump are connected with an external control box, the flue gas composition of the measuring points at different positions of the flue can be conveniently tested, the mixed flue gas composition of a plurality of measuring points can be tested, and the flue gas composition testing device has the advantages of material saving, small occupied space and the like, and has good economical efficiency and practical operability.
Description
Technical Field
The utility model relates to a boiler flue gas monitoring technology field specifically is a flue multiple spot flue gas sampling device.
Background
The boiler is an energy conversion device capable of converting chemical energy in fuel into heat energy, and is widely applied to enterprises such as power plants, industrial and mining enterprises and the like. In order to detect the combustion condition of the fuel in the boiler and the component content in the flue gas generated after the fuel is combusted, the flue gas in the tail flue of the boiler needs to be sampled and analyzed. Along with the gradual increase of the boiler capacity, the boiler tail flue is also thicker and thicker (the cross-sectional area of the boiler tail flue is also larger and larger), meanwhile, the flow field behind the boiler denitration SCR reactor is also uneven, the concentration of oxygen and nitrogen oxide behind the reactor is also uneven, and the sampling points of the on-line flue gas monitoring system in the flue at the present stage are fewer and fixed, so that the on-line flue gas monitoring result is possibly inaccurate and unrepresentative. Although the number of the measuring points can be increased by manual sampling, the position of the sampling device needs to be frequently replaced by the manual sampling, the operation is complex, the time and the labor are consumed, and the measuring efficiency is low.
Based on this, the utility model designs a flue multiple spot flue gas sampling device to solve the above-mentioned problem of mentioning.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flue multiple spot flue gas sampling device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flue multiple spot flue gas sampling device, includes main line, sample branch pipe and sampling head lateral conduit, the main line is installed in the outside of flue, be equipped with a plurality of groups on the main line and go deep into to the inside sample branch pipe of flue, the equipartition has a plurality of sampling head lateral conduit on the outer wall of sample branch pipe, install electric valve on the sampling head lateral conduit, the terminal connection kneck of main line is connected with the monitoring pipeline, install the flue gas pump on the monitoring pipeline, the filter is installed to the inlet end one side that just is located the flue gas pump on the monitoring pipeline, electric valve and flue gas pump are connected with external control case.
Preferably, the front end of the main pipeline is provided with a first detachable sealing end cover.
Preferably, one end of each group of sampling branch pipes extending into the flue is provided with a detachable sealing end cover II.
Preferably, the sampling branch pipes are at least provided with two groups, and the electric valves are at least provided with six groups.
Preferably, the flue gas pump is in the model of SPV 700.
Compared with the prior art, the beneficial effects of the utility model are that: the device is connected with a smoke analyzer for manual sampling, so that the smoke components can be tested, and the device is connected with an online smoke analyzer, so that the online smoke components can be tested. The device can be convenient tests the smoke composition of different position measurement points of flue, can realize testing the mixed smoke composition of different measurement points simultaneously, makes the test result more representative. The device still has the advantage such as save material, occupation space is not big under the condition that satisfies the multiple spot test requirement, has good economic type and reality maneuverability. The device brings great convenience and accuracy to the smoke component test, and brings great reference value and control guidance significance to centralized control.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a main pipeline; 2. sampling branch pipes; 3. a sampling head branch pipeline; 4. a filter; 5. monitoring the pipeline; 6. connecting an interface; 7. a flue gas pump; 8. an electrically operated valve; 9. sealing the end cover I; 10. and sealing the end cover II.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a flue multipoint flue gas sampling device comprises a main pipeline 1, sampling branch pipes 2 and sampling head branch pipes 3, wherein the main pipeline 1 is installed outside a flue, a plurality of groups of sampling branch pipes 2 extending into the flue are arranged on the main pipeline 1, a plurality of sampling head branch pipes 3 are uniformly distributed on the outer wall of each sampling branch pipe 2, an electric valve 8 is installed on each sampling head branch pipe 3, the electric valve 8 controls the connection or disconnection of each sampling head branch pipe 3, a monitoring pipeline 5 is connected to a connecting interface 6 at the tail end of the main pipeline 1, a flue gas pump 7 is installed on each monitoring pipeline 5, the electric valves 8 and the flue gas pump 7 are connected with an external control box, a filter 4 is installed on one side of the air inlet end of the flue gas pump 7 on each monitoring pipeline 5 and located at the front of the flue gas pump 7, the filter 4 is used for primarily filtering flue gas before entering the flue gas pump 7, and controlling the connection or disconnection of the electric valves 8 and the flue gas pump 7 through the external control box, this technique belongs to the prior art and is not described herein.
The front end of the main pipeline 1 is provided with a detachable sealing end cover I9. And one end of each group of sampling branch pipes 2 extending into the flue is provided with a detachable sealing end cover II 10. The first sealing end cover 9 and the second sealing end cover 10 are convenient to disassemble, so that the main pipeline 1 and the sampling branch pipe 2 can be cleaned.
Wherein, sample branch pipe 2 is provided with two sets ofly at least, electric valve 8 is provided with six at least, and the setting of many sampling points is in order to improve the accuracy to flue gas monitoring.
The type of the flue gas pump 7 is SPV700, the price is low, and the service life is long.
The specific working principle is as follows:
after the device is installed, when smoke components are collected and analyzed, a smoke pump 7 and a smoke on-line monitoring system connected to the outlet end of the monitoring pipeline 5 or a smoke analyzer for manual sampling are started, electric valves 8 on different sampling head branch pipelines 3 are opened, and the smoke components at the front end measuring points of the different sampling head branch pipelines 3 can be tested. Meanwhile, the electric valves 8 of the sampling head branch pipelines 3 are opened, so that the smoke components of the mixed smoke at the measuring points corresponding to the sampling head branch pipelines 3 can be tested. The device can be used for conveniently testing the smoke components of the measuring points at different positions of the flue and testing the mixed smoke components of a plurality of measuring points. The device can be used for testing the components of the manually sampled smoke and can also be used for online monitoring of the smoke.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The utility model provides a flue multiple spot flue gas sampling device which characterized in that: including main line (1), sample branch pipe (2) and sampling head lateral conduit (3), install in the outside of flue in main line (1), be equipped with a plurality of groups on main line (1) and go deep into to the inside sample branch pipe (2) of flue, the equipartition has a plurality of sampling head lateral conduit (3) on the outer wall of sample branch pipe (2), install electric valve (8) on sampling head lateral conduit (3), terminal connection interface (6) department of main line (1) is connected with monitoring pipeline (5), install flue gas pump (7) on monitoring pipeline (5), just be located inlet end one side of flue gas pump (7) on monitoring pipeline (5) and install filter (4), electric valve (8) and flue gas pump (7) are connected with external control case.
2. The flue multipoint flue gas sampling device of claim 1, wherein: the front end of the main pipeline (1) is provided with a detachable sealing end cover I (9).
3. The flue multipoint flue gas sampling device of claim 1, wherein: and one end of each group of sampling branch pipes (2) extending into the flue is provided with a detachable sealing end cover II (10).
4. The flue multipoint flue gas sampling device of claim 1, wherein: the sampling branch pipes (2) are at least provided with two groups, and the electric valves (8) are at least provided with six.
5. The flue multipoint flue gas sampling device of claim 1, wherein: the type of the flue gas pump (7) is SPV 700.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020209247.5U CN212275363U (en) | 2020-02-25 | 2020-02-25 | Flue multipoint flue gas sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020209247.5U CN212275363U (en) | 2020-02-25 | 2020-02-25 | Flue multipoint flue gas sampling device |
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| Publication Number | Publication Date |
|---|---|
| CN212275363U true CN212275363U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020209247.5U Expired - Fee Related CN212275363U (en) | 2020-02-25 | 2020-02-25 | Flue multipoint flue gas sampling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109490A (en) * | 2021-04-13 | 2021-07-13 | 中国原子能科学研究院 | Gas sampling device and system |
-
2020
- 2020-02-25 CN CN202020209247.5U patent/CN212275363U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109490A (en) * | 2021-04-13 | 2021-07-13 | 中国原子能科学研究院 | Gas sampling device and system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |