CN220357026U - Self-temperature-limiting high-temperature CEMS sampling probe - Google Patents
Self-temperature-limiting high-temperature CEMS sampling probe Download PDFInfo
- Publication number
- CN220357026U CN220357026U CN202321771496.3U CN202321771496U CN220357026U CN 220357026 U CN220357026 U CN 220357026U CN 202321771496 U CN202321771496 U CN 202321771496U CN 220357026 U CN220357026 U CN 220357026U
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- temperature
- probe
- self
- flue gas
- cavity
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- 239000000523 sample Substances 0.000 title claims abstract description 82
- 238000000738 capillary electrophoresis-mass spectrometry Methods 0.000 title claims abstract description 25
- 238000005070 sampling Methods 0.000 title claims abstract description 23
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003546 flue gas Substances 0.000 claims abstract description 34
- 239000000779 smoke Substances 0.000 claims abstract description 18
- 238000007664 blowing Methods 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 14
- 238000004321 preservation Methods 0.000 claims description 8
- 239000011241 protective layer Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 12
- 239000000428 dust Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model belongs to the field of flue gas emission detection of thermal power plants, and particularly relates to a self-temperature-limiting high-temperature CEMS sampling probe, which comprises the following components: the probe comprises a probe cavity, a filter element assembly, a smoke inlet and a smoke outlet; the utility model discloses a sampling probe, including probe cavity, filter core assembly, back-blowing mouth, instrument air device, electromagnetic valve, filter core assembly, instrument air device, the one end of probe cavity is equipped with the flue gas entry, and the outer end intercommunication of flue gas entry has the flue gas pipeline, and the inside filter core assembly is provided with the filter core assembly, and one side intercommunication of filter core assembly has offered the flue gas export on the probe cavity, is located the inside round self-limiting temperature companion area that is provided with of probe cavity of filter core assembly outer lane, the back-blowing mouth has been offered to the opposite side of filter core assembly, and the instrument air device is passed through to the back-blowing mouth outside, and this sampling probe reliability is high, and the maintenance volume is little, and is energy-conserving longe-lived.
Description
Technical Field
The utility model belongs to the field of flue gas emission detection of thermal power plants, and particularly relates to a self-temperature-limiting high-temperature CEMS sampling probe.
Background
In CEMS flue gas emission continuous detection system application, sampling probe installs on the flue gas pipeline, generally directly exposes in the air, and sampling probe heating is two kinds of heating methods of temperature control switch cooperation heating rod or self-limiting temperature companion area, and wherein, the advantage that temperature control switch and the heating rod that control CEMS probe temperature used is: the heating temperature is high, the energy is large, the defects are that the faults are many, the energy consumption is large, and the continuous high-temperature operation is easy to burn throughout the year;
the CEMS probe controlled by the self-temperature-limiting heat tracing belt used in the market at present has the advantages of energy conservation, few faults, low temperature heating, generally up to 120 ℃, low temperature, possibility of influencing the humidity of the measured smoke, easiness in adhesion of smoke dust on a filter screen, poor back blowing self-cleaning capability, stronger corrosiveness of wet smoke and easiness in reduction of the service life of the probe;
therefore, in view of the above-mentioned problems, the present technical solution proposes a self-temperature-limiting high-temperature CEMS sampling probe.
Disclosure of Invention
The embodiment of the utility model aims to provide a self-temperature-limiting high-temperature CEMS sampling probe, which aims to solve the problems.
The utility model is realized in such a way that a self-temperature-limiting high-temperature CEMS sampling probe structure diagram comprises: the probe comprises a probe cavity, a filter element assembly, a smoke inlet and a smoke outlet; the one end of probe cavity is equipped with the flue gas entry, the outer end intercommunication of flue gas entry has the flue gas pipeline, the inside of probe cavity is provided with the filter core assembly, the filter core assembly is arranged in the dust of flue gas input to the flue gas entry and filters, one side intercommunication of filter core assembly has the flue gas export of seting up on the probe cavity, flue gas after the filter core assembly handles is discharged along the flue gas export, the inside round self-limiting heat tracing area that is provided with of probe cavity that is located the filter core assembly outer lane, the heating of heat tracing area starts the probe cavity, gasify the flue gas inside the filter core assembly, keep the drying of probe cavity and filter core assembly simultaneously, the blowback mouth has been seted up to the opposite side of filter core assembly simultaneously, the clean gas of probe cavity orientation is passed through to the solenoid valve connection instrument air device in the blowback outside, utilize the blowback to clean the probe cavity inside and filter core assembly.
According to the self-temperature-limiting high-temperature CEMS sampling probe, the self-temperature limitation is controlled by arranging the probe without a switch, the heating temperature of the probe is greatly increased, the corrosion resistance and the blowback self-cleaning capability of the CEMS probe are improved, the running reliability of a CEMS system can be improved, the maintenance amount is small, the energy is saved, and the service life is long.
Drawings
Fig. 1 is a schematic structural diagram of a self-temperature-limiting high-temperature CEMS sampling probe.
In the accompanying drawings: the self-temperature-limiting heat tracing belt 1, a probe cavity 2, a filter element assembly 3, a protective layer 4, an insulating layer 5, a housing 6, a flue gas inlet 7, a back-blowing port 8 and a flue gas outlet 9.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Specific implementations of the utility model are described in detail below in connection with specific embodiments.
As shown in fig. 1, a structure diagram of a self-temperature-limiting high-temperature CEMS sampling probe according to an embodiment of the present utility model includes: the probe cavity 2, the filter element assembly 3, the smoke inlet 7 and the smoke outlet 9; one end of the probe cavity 2 is provided with a flue gas inlet 7, the outer end of the flue gas inlet 7 is communicated with a flue gas pipeline, the inside of the probe cavity 2 is provided with a filter element assembly 3, the filter element assembly 3 is used for filtering dust in flue gas input by the flue gas inlet 7, one side of the filter element assembly 3 is communicated with a flue gas outlet 9 formed in the probe cavity 2, flue gas processed by the filter element assembly 3 is discharged along the flue gas outlet 9, a circle of self-limiting heat tracing belt 1 is arranged in the probe cavity 2 positioned on the outer ring of the filter element assembly 3, the heat limiting heat tracing belt 1 starts to heat the probe cavity 2, flue gas passing through the inside of the filter element assembly 3 is gasified, meanwhile, the probe cavity 2 and the filter element assembly 3 are kept dry, a back-blowing port 8 is formed in the other side of the filter element assembly 3, clean gas is input towards the probe cavity 2 through an electromagnetic valve connecting instrument air device, and the inside the probe cavity 2 and the filter element assembly 3 are cleaned by back blowing.
In the embodiment of the utility model, the inner wall of the probe cavity 2 is provided with the heat preservation layer 5, the temperature inside the probe cavity 2 is kept constant by using the heat preservation layer, and the temperature reduction speed is reduced, so that the heating effect of the self-limiting temperature heat tracing belt 1 is improved; the temperature-limiting heat tracing belt 1 is externally connected with a power supply, and the temperature can be kept at 180-210 ℃;
specifically, since the probe cavity 2 is mostly applied outdoors and is directly exposed in the air, a layer of protective layer 4 is wrapped on the outer side of the heat insulation layer 5, and the protective layer 4 is used for increasing the protective effect on the heat insulation layer 5, namely reducing the damage degree of external impact force or collision to the heat insulation layer 5 or the probe cavity 2;
in order to further improve the protection of the probe cavity 2, a group of covers are arranged on the outer side of the probe cavity 2, the whole probe cavity 2 is wrapped by the covers, corresponding through holes are formed in the positions of the covers, corresponding to the smoke inlet 7, the back-blowing port 8, the smoke outlet 9 and the like, so that external pipelines, connecting structures and the like can be smoothly connected with the smoke inlet 7, the back-blowing port 8 and the smoke outlet 9, and smooth operation of the probe cavity 2 is maintained.
Specifically, the probe cavity 2 is made of stainless steel 316L;
the self-temperature-limiting heat tracing belt 1 has the advantages of self-temperature limitation, heating at 210 ℃, temperature resistance at 260 ℃ and power of 300w (50 w/m);
the filter element assembly 3 adopts a ceramic filter element of 50 x 20 x 136, a stainless steel 316L material accessory and a fluorine rubber O-shaped ring for sealing;
the heat preservation layer 5 is made of fluorine rubber material and has the thickness of 10mm;
protective layer 4 adopts stainless steel 316L material, external diameter size: 127mm, 2mm thick;
the housing 6 is made of stainless steel 316L, the thickness of the plate is 1.5mm, the protection level of the IP56 is as follows, and the size is as follows: 350*295*220.
The embodiment of the utility model provides a self-temperature-limiting high-temperature CEMS sampling probe, when the probe is put into operation, a 220VAC probe is connected to self-temperature-limiting heat tracing belt for automatic heating, the temperature is controlled to be 180-210 ℃, the temperature of a probe cavity 2 and a filter element assembly 3 is kept stable through a heat preservation layer 5, meanwhile, the probe cavity 2, the filter element assembly 3 and smoke dust are dried, the corrosion resistance of the smoke gas is reduced due to high temperature and drying, the corrosion resistance of the CEMS probe is improved, and the service life of the probe is prolonged;
when the system is used for sampling, the temperature of the probe cavity 2 is controlled to be 180-210 ℃, the heat preservation layer 4 and the housing 6 ensure that the temperature of the probe cavity 2 and the filter element assembly 3 are kept stable, so that the flue gas required by CEMS main meter measurement is not lower than 120 ℃, the flue gas is qualified, and the system measurement is stable and reliable;
when the back-blowing self-cleaning is performed, the self-limiting temperature heat tracing belt 1 is continuously heated to more than 210 ℃ at most, and the heat preservation layer 4 and the housing 6 are used for guaranteeing that the temperature of the probe cavity 2 and the filter element assembly 3 is kept stable, so that the probe cavity 2, the filter element assembly 3 and smoke dust are dried, the back-blowing self-cleaning effect is greatly improved, and maintenance work is reduced;
the self-temperature-limiting heat tracing belt 1 works at the highest heating temperature of 210 ℃, has temperature resistance of 260 ℃ and no switch control, reduces the failure rate, has long service life of a control system and reduces the use cost.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (5)
1. A self-temperature-limiting high temperature CEMS sampling probe, the self-temperature-limiting high temperature CEMS sampling probe comprising: the probe comprises a probe cavity (2), a filter element assembly (3), a smoke inlet (7) and a smoke outlet (9); one end of the probe cavity (2) is provided with a flue gas inlet (7), the outer end of the flue gas inlet (7) is communicated with a flue gas pipeline, the inside of the probe cavity (2) is provided with a filter element assembly (3), one side of the filter element assembly (3) is communicated with a flue gas outlet (9) formed in the probe cavity (2), the inside of the probe cavity (2) located on the outer ring of the filter element assembly (3) is provided with a circle of self-limiting temperature heat tracing belt (1), the other side of the filter element assembly (3) is provided with a back blowing port (8), and the outer side of the back blowing port (8) is connected with an instrument air device through an electromagnetic valve.
2. The self-temperature-limiting high-temperature CEMS sampling probe according to claim 1, wherein a heat preservation layer (5) is arranged in the inner wall of the probe cavity (2), and the temperature of the self-temperature-limiting high-temperature CEMS sampling probe can be kept between 180 and 210 ℃ by an external power supply of a temperature-limiting heat tracing belt (1).
3. The self-temperature-limiting high-temperature CEMS sampling probe according to claim 2, wherein the outer side of the heat preservation layer (5) is wrapped with a protective layer (4).
4. A self-temperature limiting high temperature CEMS sampling probe according to claim 3, characterised in that a set of housings are mounted outside the probe cavity (2).
5. The self-temperature-limiting high-temperature CEMS sampling probe according to claim 4, wherein the probe cavity (2) is made of stainless steel (316) L, and the heat-insulating layer (5) is made of fluorine rubber and is 10mm thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321771496.3U CN220357026U (en) | 2023-07-06 | 2023-07-06 | Self-temperature-limiting high-temperature CEMS sampling probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321771496.3U CN220357026U (en) | 2023-07-06 | 2023-07-06 | Self-temperature-limiting high-temperature CEMS sampling probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220357026U true CN220357026U (en) | 2024-01-16 |
Family
ID=89475817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321771496.3U Active CN220357026U (en) | 2023-07-06 | 2023-07-06 | Self-temperature-limiting high-temperature CEMS sampling probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220357026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117606868A (en) * | 2024-01-24 | 2024-02-27 | 国能龙源环保有限公司 | Fume emission structure |
-
2023
- 2023-07-06 CN CN202321771496.3U patent/CN220357026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117606868A (en) * | 2024-01-24 | 2024-02-27 | 国能龙源环保有限公司 | Fume emission structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Baolin Inventor after: Zhang Ritao Inventor after: Wang Yihong Inventor after: Lin Shenzhan Inventor before: Li Baolin Inventor before: Zhang Ritao Inventor before: Wang Yihong Inventor before: Lin Shenzhan |