CN208270307U - A kind of online CEMS pretreatment system - Google Patents
A kind of online CEMS pretreatment system Download PDFInfo
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- CN208270307U CN208270307U CN201820857552.8U CN201820857552U CN208270307U CN 208270307 U CN208270307 U CN 208270307U CN 201820857552 U CN201820857552 U CN 201820857552U CN 208270307 U CN208270307 U CN 208270307U
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- 238000000738 capillary electrophoresis-mass spectrometry Methods 0.000 title claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 54
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 32
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003546 flue gas Substances 0.000 claims abstract description 19
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 13
- 238000005070 sampling Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 6
- 238000010926 purge Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000000443 aerosol Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 3
- 239000012528 membrane Substances 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 20
- 238000000034 method Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of online CEMS pretreatment systems, including sample air film type drier, compressed air inlet and system control cpu, the entrance of the sample air film type drier installs sample gas inlet respectively, sample air filter and Ammonia removing machine, the sample air filter, the front end of Ammonia removing machine is installed in heater box, the outlet of the sample air film type drier is separately installed with sample air-flow meter, sample gas dew point detector, sample air-flow adjustable valve, sample gas sampling pump, the outlet of sample gas, this kind of online CEMS pretreatment system, improve the measuring accuracy of the gases such as SO2 and NOx in flue gas；System is compact to design, small in size；Stability is high, and high reliablity is easy to operate；The service life for improving system reduces membrane dryer upkeep operation amount, scientific and reasonable for structure, safe and convenient to use, provides a great help for people.
Description
Technical field
The utility model relates to environment monitoring technical fields, more particularly, to a kind of online CEMS pretreatment system.
Background technique
CEMS is the abbreviation of English Continuous Emission Monitoring System, is referred to atmosphere pollution
The gaseous pollutant and particulate matter of source emission carry out concentration and total emission volumn continuously monitors and information is real-time transmitted to supervisor portion
The device of door, referred to as " flue gas automatic monitored control system ".Main includes sampling and pretreatment system, measuring and analysis system, auxiliary
System.Complete extraction method, dilution extraction method and the direct method of measurement can be divided into according to sampling, wherein complete extraction method has operation letter
The features such as single, at low cost, use scope is the most extensive.
In environment monitoring, moisture in flue gas not only can Failure analysis equipment, and the active principle in sample gas can be molten
Solution influences detection accuracy in condensed water；In the case where use infrared spectrum analyser, moisture even understands the accurate of interference Instrument
Degree, therefore, the most important function of CEMS flue gas pretreatment system are that moisture effectively monitors component to sample gas in removal flue gas
Interference.And in online CEMS flue gas pretreatment system, traditional technique mainly uses semiconductor cooling condenser as flue gas sample
The de-watering apparatus of gas.
2014, the Committee of Development and Reform, Chinese Ministry of Environmental Protection and National Energy Board's joint promulgated that " coal electricity energy-saving and emission-reduction upgrading is taken action with transformation
Plan (2014-the year two thousand twenty) ", wherein regulation: eastern region creates Thermal generation unit Air Pollutant Emission concentration and reaches substantially
To gas turbine group emission limit, (i.e. under the conditions of benchmark oxygen content 6%, flue dust, sulfur dioxide, discharged nitrous oxides concentration are divided
It Bu Gaoyu 10,35,50mg/m3).And in environmental industry standard HJ 629-2011 " the stationary source exhaust gas of Chinese Ministry of Environmental Protection's publication
The measurement non-dispersion infrared absorption process of sulfur dioxide " in clear stipulaties dehumidification device should make dehumidifying after titanium dioxide is tested in gas
The loss of sulphur is not more than 5%.And the flue-gas temperature after desulphurization denitration is up to 80 DEG C, dew point has more reached 50-60 DEG C, and vapor contains
A large amount of condensed water can be generated in condensation process by measuring high, traditional condenser method, SO2 and NOx easily mistake herein in sample gas
It is dissolved in condensed water in journey, causes SO2 and NOx loss in sample gas excessive, therefore, when traditional condenser method does not adapt to new
The rigors of the online CEMS flue gas pretreatment system of phase.
The fluororesin non-porous hydrophilic film of load sulfonic acid group has the characteristic for only hydrone being allowed to pass through, when there is outside in film
Can be generated when water vapor concentration difference generates, between film it is a kind of so that the concentration is intended to uniform driving force, hydrone is with this driving force
Membranous wall is penetrated, a side high from moisture concentration is mobile to the low side of moisture concentration, currently, membrane dryer made of such film
It is widely used in multiple fields such as pneumatic braking, analysis instrument, haldane-Henderson gas analysis apparatus.
Utility model content
The technical problems to be solved in the utility model is to overcome existing defect, provides a kind of online CEMS pretreatment system
System, to solve the above problems.
To achieve the above object, the utility model provides the following technical solutions: a kind of online CEMS pretreatment system, packet
Sample air film type drier, compressed air inlet and system control cpu are included, the entrance of the sample air film type drier installs sample respectively
Gas entrance, sample air filter and Ammonia removing machine, the sample air filter, Ammonia removing machine front end be installed in heater box, the sample
The outlet of air film type drier is separately installed with sample air-flow meter, sample gas dew point detector, sample air-flow adjustable valve, the sampling of sample gas
The blowback air outlet of pump, the outlet of sample gas, the sample air film type drier is occurred by three-way connection and blowback air vacuum meter, vacuum
The negative pressure end of device is connected, and the three-way connection other end is connected with the discharge outlet of sample air filter drain valve and sample air filter, institute
State compressed air inlet by three-way connection respectively with blowback gas dryer, blowback air pressure regulator valve, flow regulation pipe, blowback air-flow
Meter is connected with the blowback air entrance of sample air film type drier, and the three-way connection other end and vacuum generator regulating valve, vacuum
The positive pressure side of generator is connected, and the outlet of vacuum generator is connected to exhaust outlet.
As a kind of optimal technical scheme of the utility model, the material of the sample air film type drier is with hydrophily
Fluororesin hollow fibre filament non-porous film, and including air inlet, gas outlet, the outlet of adjacent with air inlet purge gas, with go out
The adjacent purge gas entrance of port.
As a kind of optimal technical scheme of the utility model, the heater box, sample air-flow meter, the detection of sample gas dew point
Device, sample air-flow adjustable valve, blowback air vacuum meter, sample air filter drain valve, vacuum generator regulating valve, blowback throughput
Meter, blowback air pressure regulator valve are connected with system control cpu, the temperature of the heater box, sample air-flow adjustable valve, sample air filter
The aperture of drain valve, vacuum generator regulating valve and blowback air pressure regulator valve is controlled to adjust by system control cpu.
As a kind of optimal technical scheme of the utility model, the system control cpu connection is provided with display screen.
As a kind of optimal technical scheme of the utility model, the heater box is internally provided with high temperature alarm.
As a kind of optimal technical scheme of the utility model, the preheating setting pressure of the vacuum generator is -50kPa.
As a kind of optimal technical scheme of the utility model, the sample air filter is 0.3 μ to the filtering accuracy of mist of oil
M, the filtering accuracy to liquid water, aerosol and dust are 5 μm.
As a kind of optimal technical scheme of the utility model, the Ammonia removing machine remove NH3 in flue gas in flue gas
The measurement such as SO2 and NOx component does not cause damages.
Compared with prior art, the utility model has the beneficial effects that this kind of online CEMS pretreatment system, improves
The measuring accuracy of the gases such as SO2 and NOx in flue gas；System is compact to design, small in size；Stability is high, high reliablity, operation letter
It is single；The service life for improving system reduces membrane dryer upkeep operation amount, scientific and reasonable for structure, safe and convenient to use,
It provides a great help for people.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of online CEMS pretreatment system structural schematic diagram described in the utility model；
In figure: 1, sample gas inlet；2, sample air filter；3, Ammonia removing machine；4, heater box；5, sample air film type drier；6, sample
Air-flow meter；7, sample gas dew point detector；8, sample air-flow adjustable valve；9, sample gas sampling pump；10, sample gas exports；11, blowback air
Vacuum meter；12, exhaust outlet；13, vacuum generator；14, sample air filter drain valve；15, vacuum generator regulating valve；16, anti-
Air blowing flowmeter；17, flow regulation pipe；18, blowback air pressure regulator valve；19, blowback gas dryer；20, compressed air inlet；21,
System control cpu.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of technical solution: a kind of online CEMS pretreatment system, including sample
The entrance of air film type drier 5, compressed air inlet 20 and system control cpu 21, sample air film type drier 5 installs sample gas respectively
Entrance 1, sample air filter 2 and Ammonia removing machine 3, sample air filter 2, Ammonia removing machine 3 front end be installed in heater box 4, sample air film
The outlet of formula drier 5 is separately installed with sample air-flow meter 6, sample gas dew point detector 7, sample air-flow adjustable valve 8, the sampling of sample gas
It is sent out by three-way connection and blowback air vacuum meter 11, vacuum the blowback air outlet of pump 9, sample gas outlet 10, sample air film type drier 5
The negative pressure end of raw device 13 is connected, and the discharge outlet of the three-way connection other end and sample air filter drain valve 14 and sample air filter 2
Be connected, compressed air inlet 20 by three-way connection respectively with blowback gas dryer 19, blowback air pressure regulator valve 18, flow regulation pipe
17, blowback air flowmeter 16 is connected with the blowback air entrance of sample air film type drier 5, and the three-way connection other end and vacuum occur
Device regulating valve 15, the positive pressure side of vacuum generator 13 are connected, and the outlet of vacuum generator 13 is connected to exhaust outlet 12.
The material of sample air film type drier 5 is with hydrophilic fluororesin hollow fibre filament non-porous film, and including air inlet
Mouth, gas outlet, the purge gas outlet adjacent with air inlet, the purge gas entrance adjacent with gas outlet.
Heater box 4, sample air-flow meter 6, sample gas dew point detector 7, sample air-flow adjustable valve 8, blowback air vacuum meter 11, sample
Air filter drain valve 14, vacuum generator regulating valve 15, blowback air flowmeter 16, blowback air pressure regulator valve 18 are controlled with CPU
System 21 is connected, the temperature of heater box 4, sample air-flow adjustable valve 8, sample air filter drain valve 14, vacuum generator regulating valve
15 and blowback air pressure regulator valve 18 aperture by system control cpu 21 control to adjust.
The connection of system control cpu 21 is provided with display screen.
Heater box 4 is internally provided with high temperature alarm.
The preheating setting pressure of vacuum generator 13 is -50kPa.
Sample air filter 2 is 0.3 μm to the filtering accuracy of mist of oil, and the filtering accuracy to liquid water, aerosol and dust is 5
μm。
Ammonia removing machine 3 remove NH3 in flue gas in flue gas SO2 and the measurement such as NOx component do not cause damages.
Concrete principle: in use, it is dry to use the membrane type with the manufacture of hydrophilic fluororesin hollow fibre filament non-porous film
Dry device only allows hydrone to pass through based on chemical reaction mechanism, and the component in main gas circuit in addition to water molecule will not be by hollow
Tunica fibrosa enters in blowback gas circuit, and the vapor in sample gas can quickly be discharged without losing SO2 and NOx in flue gas sample gas
Deng effective measurement component, the measuring accuracy of the gases such as SO2 and NOx in flue gas is substantially increased, meanwhile, for membrane dryer
It is easily damaged, the disadvantage that service life is short, maintenance is complicated, is equipped with Ammonia removing machine 3, dust and oil and water filters, is greatly promoted
It in the service life of membrane dryer, is automatically adjusted according to actual condition to pressure and temperature using cpu system, reduces operation
Difficulty copes with Various Complex operating condition.
This kind of online CEMS pretreatment system, improves the measuring accuracy of the gases such as SO2 and NOx in flue gas；System
It is compact to design, it is small in size；Stability is high, and high reliablity is easy to operate；It is dry to reduce membrane type for the service life for improving system
Dry device upkeep operation amount, it is scientific and reasonable for structure, it is safe and convenient to use, it provides a great help for people.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of online CEMS pretreatment system, including sample air film type drier (5), compressed air inlet (20) and CPU control
System (21) processed, which is characterized in that the entrance of the sample air film type drier (5) installs sample gas inlet (1), the filtering of sample gas respectively
Device (2) and Ammonia removing machine (3), the sample air filter (2), Ammonia removing machine (3) front end be installed in heater box (4), the sample
The outlet of air film type drier (5) is separately installed with sample air-flow meter (6), sample gas dew point detector (7), sample air-flow adjustable valve
(8), the blowback air outlet of sample gas sampling pump (9), sample gas outlet (10), the sample air film type drier (5) passes through three-way connection
It is connected with the negative pressure end of blowback air vacuum meter (11), vacuum generator (13), and the three-way connection other end and sample air filter are arranged
Water valve (14) is connected with the discharge outlet of sample air filter (2), the compressed air inlet (20) by three-way connection respectively and instead
Blow dried device (19), blowback air pressure regulator valve (18), flow regulation pipe (17), blowback air flowmeter (16) and sample air film type are dry
The blowback air entrance of device (5) is connected, and the three-way connection other end and vacuum generator regulating valve (15), vacuum generator (13)
Positive pressure side is connected, and the outlet of vacuum generator (13) is connected to exhaust outlet (12).
2. a kind of online CEMS pretreatment system according to claim 1, which is characterized in that the sample air film type is dry
The material of device (5) is with hydrophilic fluororesin hollow fibre filament non-porous film, and including air inlet, gas outlet and air inlet
Adjacent purge gas outlet, the purge gas entrance adjacent with gas outlet.
3. a kind of online CEMS pretreatment system according to claim 1, which is characterized in that the heater box (4), sample
Air-flow meter (6), sample gas dew point detector (7), sample air-flow adjustable valve (8), blowback air vacuum meter (11), sample air filter row
Water valve (14), vacuum generator regulating valve (15), blowback air flowmeter (16), blowback air pressure regulator valve (18) are controlled with CPU
Uniting, (21) are connected, and temperature, sample air-flow adjustable valve (8), sample air filter drain valve (14), the vacuum of the heater box (4) are sent out
The aperture of raw device regulating valve (15) and blowback air pressure regulator valve (18) is controlled to adjust by system control cpu (21).
4. a kind of online CEMS pretreatment system according to claim 1, which is characterized in that the system control cpu
(21) connection is provided with display screen.
5. a kind of online CEMS pretreatment system according to claim 1, which is characterized in that in the heater box (4)
Portion is provided with high temperature alarm.
6. a kind of online CEMS pretreatment system according to claim 1, which is characterized in that the vacuum generator
(13) preheating setting pressure is -50kPa.
7. a kind of online CEMS pretreatment system according to claim 1, which is characterized in that the sample air filter
It (2) is 0.3 μm to the filtering accuracy of mist of oil, the filtering accuracy to liquid water, aerosol and dust is 5 μm.
8. a kind of online CEMS pretreatment system according to claim 1, which is characterized in that the Ammonia removing machine (3) is removed
Go NH3 in flue gas in flue gas SO2 and the measurement component such as NOx do not cause damages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820857552.8U CN208270307U (en) | 2018-06-05 | 2018-06-05 | A kind of online CEMS pretreatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820857552.8U CN208270307U (en) | 2018-06-05 | 2018-06-05 | A kind of online CEMS pretreatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208270307U true CN208270307U (en) | 2018-12-21 |
Family
ID=64689689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820857552.8U Expired - Fee Related CN208270307U (en) | 2018-06-05 | 2018-06-05 | A kind of online CEMS pretreatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208270307U (en) |
-
2018
- 2018-06-05 CN CN201820857552.8U patent/CN208270307U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
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