CN210834345U - Flue gas sampling device with self-cleaning function - Google Patents
Flue gas sampling device with self-cleaning function Download PDFInfo
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- CN210834345U CN210834345U CN201921480636.5U CN201921480636U CN210834345U CN 210834345 U CN210834345 U CN 210834345U CN 201921480636 U CN201921480636 U CN 201921480636U CN 210834345 U CN210834345 U CN 210834345U
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Abstract
A flue gas sampling device with a self-cleaning function belongs to the technical field of flue gas analysis and measurement. The device comprises a sampling probe, a filter element, a pneumatic component, a central rotating component with a brush and a sampling pipeline. The central rotating part is arranged in the filter element, one end of the central rotating part is connected with the pneumatic part, and the other end of the central rotating part is fixed in the clamping groove at the bottom of the filter element. The top of the brush contacts the inner surface of the filter element. The central rotating part adopts a spiral structure, and the spiral direction of the central rotating part is opposite to the flow direction of the flue gas in the sampling pipeline. The pneumatic component adopts an axial impeller type structure. During operation, the central rotating part rotates to enable the brush to generate continuous outward rotating movement, so that particles adhered to the inside of the filter element can be discharged along with the brush, and the phenomenon of blockage caused by a long time is avoided. The device both can filter the flue gas, can clean the filter core again to the live time and the life-span of extension filter core ensure the measuring accuracy of analysis appearance.
Description
Technical Field
The utility model relates to a flue gas sampling device, in particular to flue gas sampling device with self-cleaning function belongs to flue gas analysis and measures technical field.
Background
When the existing flue gas is analyzed, a sampling probe is needed to sample the flue gas in a flue and then the flue gas is sent into an analyzer for analysis. Because dust impurity is more in the flue gas, the analysis appearance easily produces the jam, consequently, for preventing that the dust impurity in the flue gas from getting into the measuring tube way and influencing the accuracy that the analysis appearance measured, need set up the filter core in the sample pipeline, nevertheless the filter core is blockked up easily after using for a long time, consequently need regularly sweep the filter core to make sampling probe continuous operation. In practical application, sweep and have certain clearance effect to the floating dust, but the particulate matter of long-time accumulation easily adheres to on the filter core surface and is difficult to be swept in the high temperature environment of flue, and the jam phenomenon still can appear for a long time, in order not to influence monitor's normal work, must pull down the filter core and just can clear up it.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, an object of the utility model is to provide a flue gas sampling device with self-cleaning function makes it both can filter the flue gas, can clean the filter core again to the live time and the life-span of extension filter core ensure the measuring accuracy of analysis appearance.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a flue gas sampling device with self-cleaning function, this sampling device includes sampling probe, filter core and sample pipeline, its characterized in that: the sampling device also comprises a pneumatic component and a central rotating component with a brush, and the top of the brush is in contact with the inner surface of the filter element; the center rotary part is integrally installed inside the filter element, one end of the center rotary part is connected with the pneumatic part, and the other end of the center rotary part is fixed in the clamping groove at the bottom of the filter element.
Preferably, the central rotating part adopts a spiral structure, and the spiral direction of the central rotating part is opposite to the flow direction of the flue gas in the sampling pipeline; the pneumatic component adopts an axial impeller type structure.
Preferably, the filter element is a cylindrical ceramic filter element.
Compared with the prior art, the utility model, ① center rotary part is rotatory to make the brush produce the motion of constantly outwards rotating, can make the adhesion discharge along with the brush at the inside particulate matter of filter core, effectively clear up the particulate matter that accumulates on the filter core, ② pneumatic component is axial impeller formula structure, flue gas flow can drive center rotary part in the sample pipeline, guarantees self-cleaning function's long-term operation ③ the device has simple structure, be convenient for maintain and energy-concerving and environment-protective advantage.
Drawings
Fig. 1 is a schematic view of a structural principle of an embodiment of the present invention.
Fig. 2 is a schematic sectional view taken along line a-a in fig. 1.
Reference numerals: 1-a sampling probe; 2-pneumatic components; 3-a filter element; 4-a brush; 5-a central rotating part; 6-sampling pipeline; 7-flue wall.
Detailed Description
The following describes the structure, principle and operation of the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic view of a structural principle of an embodiment of a flue gas sampling device with a self-cleaning function provided by the present invention, the flue gas sampling device includes a sampling probe 1, a pneumatic component 2, a filter element 3, a central rotating component 5 with a brush 4, and a sampling pipeline 6; the flue gas sampling device is integrally installed in a flue, a filter element 3 is of a cylindrical structure and is installed in a sampling pipeline 6, a central rotating part 5 is integrally installed in the filter element 3, and a brush 4 is fixed on the central rotating part 5; the top of the brush 4 is contacted with the inner surface of the filter element 3; one end of the central rotating part 5 is connected with the pneumatic part 2, and the other end is arranged in a clamping groove at the bottom of the filter element 3. The central rotating part 5 adopts a spiral structure, and the spiral direction of the central rotating part is opposite to the flow direction of the flue gas in the sampling pipeline; the pneumatic component 2 adopts an axial impeller type structure. The filter element 3 adopts a cylindrical ceramic filter element.
The working principle of the utility model is as follows: the flue gas sampling device is integrally arranged in a flue, a filter element in a sampling pipeline is of a cylindrical structure, and flue gas in the flue flows into the sampling pipeline from a sampling probe and flows to the edges of the periphery through the filter element to finish filtering in the flue gas sampling process; the flue gas is then taken out along a sampling pipe. Impurities such as fly ash particles adhere to the inner surface of the filter element. The central rotating part with the brush is integrally arranged inside the filter element, and the top of the brush is contacted with the inner surface of the filter element. The axial impeller that the flue gas flows and makes pneumatic component in the sample pipeline is rotatory, drives central rotary part rotatory, because rotary part adopts helical structure, and the flow direction of flue gas is opposite in spiral direction and the sample pipeline to drive the brush and produce the motion of continuous outside rotation, take out the deposition on filter core surface at rotatory in-process, realize the filter core clearance of flue gas sample in-process.
The device need not extra power device, drives brush clearance filter core surface deposition through pneumatic component in the flue gas sampling process, has simple structure, is convenient for maintain and energy-concerving and environment-protective advantage such as.
Claims (3)
1. The utility model provides a flue gas sampling device with self-cleaning function, this sampling device includes sampling probe (1), filter core (3) and sample pipeline (6), its characterized in that: the sampling device also comprises a pneumatic component (2) and a central rotating component (5) with a brush (4), wherein the top of the brush (4) is in contact with the inner surface of the filter element (3); the central rotating part (5) is integrally installed inside the filter element (3), one end of the central rotating part is connected with the pneumatic part (2), and the other end of the central rotating part is fixed in a clamping groove at the bottom of the filter element (3).
2. A flue gas sampling device with self-cleaning function as claimed in claim 1, wherein: the central rotating part (5) adopts a spiral structure, and the spiral direction of the central rotating part is opposite to the flow direction of the flue gas in the sampling pipeline; the pneumatic component (2) adopts an axial impeller type structure.
3. The flue gas sampling device with self-cleaning function as claimed in claim 1 or 2, wherein: the filter element (3) adopts a cylindrical ceramic filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921480636.5U CN210834345U (en) | 2019-09-06 | 2019-09-06 | Flue gas sampling device with self-cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921480636.5U CN210834345U (en) | 2019-09-06 | 2019-09-06 | Flue gas sampling device with self-cleaning function |
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| Publication Number | Publication Date |
|---|---|
| CN210834345U true CN210834345U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921480636.5U Active CN210834345U (en) | 2019-09-06 | 2019-09-06 | Flue gas sampling device with self-cleaning function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225401A (en) * | 2020-10-08 | 2021-01-15 | 杨桂香 | Rural sewage treatment biofilter |
| CN112285280A (en) * | 2020-09-23 | 2021-01-29 | 九天起宏(江苏)检测有限公司 | Exhaust gas detection instrument with self-cleaning residual particulate matter function |
| CN114354284A (en) * | 2021-12-20 | 2022-04-15 | 清华大学 | Anti-blocking sampling device for coal mill outlet and installation method |
-
2019
- 2019-09-06 CN CN201921480636.5U patent/CN210834345U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285280A (en) * | 2020-09-23 | 2021-01-29 | 九天起宏(江苏)检测有限公司 | Exhaust gas detection instrument with self-cleaning residual particulate matter function |
| CN112285280B (en) * | 2020-09-23 | 2022-03-18 | 山东海慧环境科技有限公司 | Exhaust gas detection instrument with self-cleaning residual particulate matter function |
| CN112225401A (en) * | 2020-10-08 | 2021-01-15 | 杨桂香 | Rural sewage treatment biofilter |
| CN114354284A (en) * | 2021-12-20 | 2022-04-15 | 清华大学 | Anti-blocking sampling device for coal mill outlet and installation method |
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