CN204116181U - One is applicable to coal-fired wet flue gas fine particle detection system - Google Patents
One is applicable to coal-fired wet flue gas fine particle detection system Download PDFInfo
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- CN204116181U CN204116181U CN201420501569.1U CN201420501569U CN204116181U CN 204116181 U CN204116181 U CN 204116181U CN 201420501569 U CN201420501569 U CN 201420501569U CN 204116181 U CN204116181 U CN 204116181U
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Abstract
The utility model discloses one and be applicable to coal-fired wet flue gas fine particle detection system, this system comprises opium pipe, cyclone separation system, compressed air drying system, dilution system, vacuum drying system and fine particle detection system; Wherein opium pipe, cyclone separation system, dilution system, vacuum drying system are connected through connecting pipe successively with fine particle detection system, the outlet side of compressed air drying system is connected with dilution system inlet end, wet flue gas after opium pipe extracts desulfurization enters cyclone separation system, the flue gas retained after bulky grain thing enters dilution system, and mix with compressed air drying system pressurized air out, mixed gas enters fine particle detection system and carries out fine particle Concentration Testing after entering vacuum drying system removing water vapor.This system can avoid the measuring error that in wet flue gas, water vapor condensation causes, and avoids the corrosion of wet flue gas to whole detection system simultaneously; Testing process is convenient and swift, and analysis result accurately and reliably.
Description
Technical field
The utility model relates to one and is applicable to coal-fired wet flue gas fine particle detection system, belongs to coal-fired flue-gas environmental contaminants detection field.
Background technology
Present Domestic atmospheric environment situation is very severe, when traditional coal-smoke pollution not yet obtains controlling, the compound atmospheric pollution of regionality caused because of ozone, fine particle (PM2.5) and acid rain becomes increasingly conspicuous, the frequency that in region, air heavily contaminated phenomenon occurs on a large scale is simultaneously increasing, the socioeconomic sustainable development of serious restriction, threatens the public healthy.Research shows, fine particle complex genesis, and about 50% carrys out the direct fine particle discharged such as spontaneous combustion coal, motor vehicle, airborne dust, biomass combustion; About 50% is SO in air
2, the secondary fine particle that formed through complex chemical reaction of NOx, volatile organic matter, the gaseous contaminant such as ammonia.Fine particle source is very extensive, and the discharge of the industrial source such as existing thermoelectricity, iron and steel, cement, coal-burning boiler, has again the discharge of the moving sources such as motor vehicle, boats and ships, aircraft.Thermal Power Generation Industry is as maximum consumption coal rich and influential family, and the contribution of atmosphere pollution to fine particle of its discharge becomes the focus of public attention, and how Measurement accuracy fine particle concentration becomes the difficult point in this field.
At present, Limestone-gypsum Wet Flue Gas Desulfurization Process technology is due to technical maturity, and denitration efficiency is high, reliable, and the features such as advantage of lower cost are able to extensive utilization.Due to wet desulfurizing process, to be reached capacity humidity, low temperature and low SO going out interruption-forming by the flue gas after wet desulphurization
2the state of concentration.In this state, be easy to the measuring error of the condensation generation fine particle due to steam, larger impact is produced on the accuracy detecting data.For effectively solving this difficult problem, be necessary to provide one to be applicable to coal-fired wet flue gas fine particle detection system.
Summary of the invention
For effectively solving wet flue gas high humidity after desulfurization, temperature is low, cause the error that water vapor condensation causes fine particle to measure, the utility model provides one and is applicable to coal-fired wet flue gas fine particle detection system, this system obviates the corrosion of wet flue gas to whole system; Testing process is convenient and swift, and analysis result accurately and reliably.
Concrete technical scheme of the present utility model is as follows:
Be applicable to coal-fired wet flue gas fine particle detection system, this system comprises opium pipe, cyclone separation system, compressed air drying system, dilution system, vacuum drying system and fine particle detection system; Wherein opium pipe, cyclone separation system, dilution system, vacuum drying system are connected through connecting pipe successively with fine particle detection system, the outlet side of compressed air drying system is connected with dilution system inlet end, wet flue gas after opium pipe extracts desulfurization enters cyclone separation system, the flue gas retained after bulky grain thing enters dilution system, and mix with compressed air drying system pressurized air out, mixed gas enters fine particle detection system and carries out fine particle Concentration Testing after entering vacuum drying system removing water vapor.
Described opium pipe is with tracing system, and preheating 10-15min, preheat temperature control 100-200 DEG C before extraction wet flue gas, achieve the whole process heating that flue gas enters opium pipe, to prevent water steam condensing;
Described cyclone separation system is heating system in addition, heating and temperature control 100-150 DEG C; Particle diameter is greater than 10 μm of fine particles to be trapped in cyclone separator, and the particle diameter fine particle that is less than 10 μm enters dilution system along with wet flue gas;
Described dilution system is heating system in addition, heating and temperature control 100-150 DEG C; Wet flue gas is mixed with the pressurized air after heating, dilution ratio control 7.5-9;
Described vacuum drying system is heat packs in addition, and heating and temperature control 100-150 DEG C, to prevent water steam condensing; Under vacuum, water vapor penetrates into outer tube from inner sleeve, realizes gas-water separation, and the mixed gas of removing water vapor enters fine particle detection system and carries out fine particle Concentration Testing.
Described compressed air drying system comprises air compressor, compressed air heating system and drying system; Compressed air pressure is 0.5-0.6Mpa, and flow is 0.6-1.5m
3/ h;
Drying agent in described drying system adopts the one in silica gel, molecular sieve or activated charcoal.
Cyclone separation system and dilution system, and the connection of dilution system and vacuum drying system all adopts adiabatic connecting pipe, to prevent heat loss.
Utilize said system to carry out flue gas fine particle detection method, the detailed process of the method is as follows:
Wet flue gas after opium pipe after preheating extracts desulfurization enters the cyclone separation system of band heat packs, retain the flue gas after bulky grain thing to mix with compressed air drying system pressurized air out, send into the dilution system with heat packs together, mixed gas enters fine particle detection system and carries out fine particle Concentration Testing after entering vacuum drying system removing water vapor.
In the method, opium pipe preheating time is 10-15min, and preheat temperature controls at 100-200 DEG C; The heating and temperature control of the heat packs of cyclone separation system is at 100-150 DEG C; The heating and temperature control of dilution system heat packs at 100-150 DEG C, dilution ratio control 7.5-9; The heating and temperature control 100-150 DEG C of vacuum drying system heat packs; Compressed air drying system compressed air pressure is 0.5-0.6Mpa, and flow is 0.6-1.5m
3/ h.
the utility model compared to existing technology tool has the following advantages:
After the utility model desulfurization, wet flue gas fine particle detection system general structure design is ingenious, each several part forms inseparable organic whole, this system effectively can solve wet flue gas high humidity after desulfurization, temperature is low, the problems such as the error causing water vapor condensation to cause fine particle to measure.
1. the utility model adopts cyclone separation system, effectively can isolate large material, be conducive to detecting fine particle concentration.
2. the utility model adopts vacuum drying system, and effectively moisture in removing flue gas, avoids the corrosion of wet flue gas to whole detection system; Testing process is convenient and swift, and analysis result accurately and reliably.
3. the heat packs of the multiple setting of the utility model, and opium pipe preheating design, all effectively maintains the temperature of flue gas, makes testing result closer to the actual concentration of particle in flue gas.
accompanying drawing illustrates:
Fig. 1 is wet flue gas fine particle detection system structural representation after the utility model desulfurization.
In figure: 1-opium pipe, 2-flue, 3-detect aperture, 4-cyclone separation system, the adiabatic connecting pipe of 5-1,5-2-, 6-1,6-2,6-3-heat packs, 7-dilution system, 8-compressed air drying system, 9-vacuum drying system, 10-vacuum pump, 11-fine particle detection system, 12-air compressor, 13-compressed air heating system.
embodiment:
Below in conjunction with accompanying drawing, the utility model will be further described:
As shown in Figure 1, be of the present inventionly applicable to wet flue gas fine particle detection system after wet desulphurization, this system comprises opium pipe 1, cyclone separation system 4, compressed air drying system 8, dilution system 7, vacuum drying system 9 and fine particle detection system 11.
Wherein opium pipe 1, cyclone separation system, dilution system 7, vacuum drying system 9 are connected through connecting pipe successively with fine particle detection system 11, and the outlet side of compressed air drying system is connected with dilution system inlet end.Cyclone separation system and dilution system 7, and dilution system 7 adopts adiabatic connecting pipe 5-1 and adiabatic connecting pipe 5-2 respectively with the connection of vacuum drying system 9.Opium pipe is with tracing system; Cyclone separation system (cyclone separator) 4 is heating system in addition; Dilution system is heating system in addition; Vacuum drying system is heat packs in addition.Compressed air drying system 8 comprises air compressor 12, compressed air heating system 13 and drying system.
testing process of the present utility model is as follows:
Extracted out by wet flue gas after desulfurization by detect aperture 3 on flue 2 through pre-warmed opium pipe 1, enter and utilize the pre-heated cyclone separator 4 of heat packs 6-3, in cyclone separator 4, the fine particle that particle diameter is greater than 10 μm is separated; Flue gas after being separated enters the dilution system 7 of heat packs 6-1 heating by adiabatic connecting pipe 5-1; The pressurized air of certain pressure head that air compressor 12 produces and flow, after compressed air drying system 8 and compressed air heating system 13 process, carries out mixed diluting with cyclone separator 4 flue gas out in dilution system 7; Flue gas after mixed diluting enters the vacuum drying system 9 of heat packs 6-2 heating by adiabatic connecting pipe 5-2, and vacuum pump 10 pairs of vacuum drying systems 9 vacuumize, the steam in removing flue gas; Flue gas through vacuum drying removing steam enters charged ram and carries out fine particle measurement of concetration.
Claims (8)
1. be applicable to a coal-fired wet flue gas fine particle detection system, it is characterized in that, this system comprises opium pipe, cyclone separation system, compressed air drying system, dilution system, vacuum drying system and fine particle detection system; Wherein opium pipe, cyclone separation system, dilution system, vacuum drying system are connected through connecting pipe successively with fine particle detection system, the outlet side of compressed air drying system is connected with dilution system inlet end, wet flue gas after opium pipe extracts desulfurization enters cyclone separation system, the flue gas retained after bulky grain thing enters dilution system, and mix with compressed air drying system pressurized air out, mixed gas enters fine particle detection system and carries out fine particle Concentration Testing after entering vacuum drying system removing water vapor.
2. be according to claim 1ly applicable to coal-fired wet flue gas fine particle detection system, it is characterized in that: described opium pipe is with tracing system.
3. be according to claim 1ly applicable to coal-fired wet flue gas fine particle detection system, it is characterized in that: described cyclone separation system is heating system in addition.
4. be according to claim 1ly applicable to coal-fired wet flue gas fine particle detection system, it is characterized in that: described dilution system is heating system in addition.
5. be according to claim 1ly applicable to coal-fired wet flue gas fine particle detection system, it is characterized in that: described vacuum drying system is heat packs in addition.
6. be according to claim 1ly applicable to coal-fired wet flue gas fine particle detection system, it is characterized in that: described compressed air drying system comprises air compressor, compressed air heating system and drying system.
7. be according to claim 6ly applicable to coal-fired wet flue gas fine particle detection system, it is characterized in that: the drying agent in described drying system adopts the one in silica gel, molecular sieve or activated charcoal.
8. be according to claim 1ly applicable to coal-fired wet flue gas fine particle detection system, it is characterized in that: cyclone separation system and dilution system, and the connection of dilution system and vacuum drying system all adopt adiabatic connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501569.1U CN204116181U (en) | 2014-09-02 | 2014-09-02 | One is applicable to coal-fired wet flue gas fine particle detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501569.1U CN204116181U (en) | 2014-09-02 | 2014-09-02 | One is applicable to coal-fired wet flue gas fine particle detection system |
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| CN204116181U true CN204116181U (en) | 2015-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181087A (en) * | 2014-09-02 | 2014-12-03 | 国电科学技术研究院 | System and method applicable to detecting wet fire coal smoke fine particles |
-
2014
- 2014-09-02 CN CN201420501569.1U patent/CN204116181U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181087A (en) * | 2014-09-02 | 2014-12-03 | 国电科学技术研究院 | System and method applicable to detecting wet fire coal smoke fine particles |
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