CN208757294U - A kind of wet method fume desulfurizing system flue gas cool-down and absorption tower auto-flushing coupling device - Google Patents
A kind of wet method fume desulfurizing system flue gas cool-down and absorption tower auto-flushing coupling device Download PDFInfo
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- CN208757294U CN208757294U CN201721889482.6U CN201721889482U CN208757294U CN 208757294 U CN208757294 U CN 208757294U CN 201721889482 U CN201721889482 U CN 201721889482U CN 208757294 U CN208757294 U CN 208757294U
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- Prior art keywords
- absorption tower
- flue gas
- flushing
- gas cool
- flue
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000003546 flue gas Substances 0.000 title claims abstract description 75
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 58
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008878 coupling Effects 0.000 title claims abstract description 14
- 238000010168 coupling process Methods 0.000 title claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 14
- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 9
- 239000003517 fume Substances 0.000 title claims abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 62
- 238000005507 spraying Methods 0.000 claims description 32
- 238000001816 cooling Methods 0.000 claims description 31
- 241000242583 Scyphozoa Species 0.000 claims description 28
- 230000001105 regulatory effect Effects 0.000 claims description 21
- 239000000956 alloy Substances 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 230000026676 system process Effects 0.000 claims description 2
- 238000006477 desulfuration reaction Methods 0.000 abstract description 11
- 230000023556 desulfurization Effects 0.000 abstract description 10
- 239000007789 gas Substances 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
A kind of wet method fume desulfurizing system flue gas cool-down of the utility model and absorption tower auto-flushing coupling device, it is arranged in the flue of absorption tower, it is coupled by FGD-DCS including flue gas cool-down spray system and absorption tower rinse-system, including flue gas cool-down spray system and absorption tower rinse-system individually or simultaneously to carry out flue gas cool-down or absorption tower and rinse.The utility model provides a kind of smoke-gas wet desulfurization system flue gas cool-down and absorption tower entrance automatic flushing device, both being able to achieve reduces flue-gas temperature to alleviate dry and wet interface severity, it is able to achieve in system operation again and absorption tower dry and wet interface real-time online is cleared up, to clear up entrance fouling, guarantee system direct motion.
Description
Technical field
The utility model relates to flue gas denitrification systems, specially a kind of to drop for coal steam-electric plant smoke wet desulfurization system flue gas
Coupling device of the warm and flue gas into tower inlet auto-flushing.
Background technique
Wet desulphurization tower flue gas, which enters at tower, has dry, wet interface, i.e. the higher former flue gas of temperature and the lower circulation of temperature
Sprayed slurry is collided here to be converged.Since most domestic heat-engine plant wet desulphurization system is that later period environmental transformation is newly-increased,
The factors such as site space deficiency are limited by, in most cases desulphurization system equipment characteristics of compact layout, narrow, enter tower flue trend and cigarette
In road flue gas flow field can not reasonable Arrangement, therefore former flue gas still has little time to enter to stream and inhales in absorption tower entrance dry and wet interface
Receive tower, easy negative pressure return zone formed here.Absorption tower circulated sprinkling slurries are involved in by flue gas into dry in this negative pressure return zone
Wet interface, the gypsum of the carrying in slurries easily deposit and solidify herein with the dust in former flue gas, long it, entrance dry and wet interface
Place's fouling, which is constantly accumulated, to thicken, and blocks former flue gas circulation passage, increases desulphurization system resistance, reduces desulphurization system efficiency.In addition,
Most domestic creates wet desulfurization system GGH (flue gas heat-exchange unit) is no longer arranged at present, and it is higher to enter tower original flue-gas temperature, will more
Aggravate this situation.
Currently, the processing mode common for absorption tower entrance scale formation is mostly manual type cleaning, this cleaning side
Formula is time-consuming, laborious and must carry out in the case where system shutdown, and operating environment is also relatively more severe and there are security risks.Few portion
Divide and uses on-line rinsing mode periodic flushing flue entrance, although this backwashing manner is simpler compared with manual cleaning, convenient, by
It is not high to be trapped in system automation degree, cannot achieve really automatic real-time online cleaning.
Summary of the invention
It is de- to provide a kind of flue gas wet process for existing on-line auto-cleaning and the technological deficiency of manual cleaning for the utility model
It is serious to alleviate dry and wet interface to be both able to achieve reduction flue-gas temperature for sulphur system flue gas cool-down and absorption tower entrance automatic flushing device
Degree, and be able to achieve in system operation and absorption tower dry and wet interface real-time online is cleared up, to clear up entrance fouling, guarantee system
System direct motion.
To achieve the above object, a kind of wet method fume desulfurizing system flue gas cool-down of the utility model rushes automatically with absorption tower
Coupling device is washed, speciality is to arrange two sets of water injection systems in the flue of absorption tower, and a set of is flue gas cool-down spray system, separately
A set of is absorption tower rinse-system, and two sets of water injection systems are coupled by FGD-DCS, can individually realize flue gas
Cooling and absorption tower pre-washing function, and above-mentioned function can be realized simultaneously.
Further, the flue gas cool-down spray system includes the alloy spiral nozzle for being parallel to flue gas flow direction arrangement,
For the alloy spiral nozzle equidistant placement on shower water branch pipe, the shower water branch pipe is connected to spraying cooling jellyfish pipe
On, the spraying cooling jellyfish pipe is connected to this coupled system technique supply mains.
Further, motor-driven valve, electric control valve and electromagnetic flowmeter are set on the spraying cooling jellyfish pipe, it is described
Motor-driven valve, electric control valve and electromagnetic flowmeter start stop signal be connected on FGD-DCS, with flue-gas temperature, absorption tower system hinder
The parametric linkages such as power.
Further, the absorption tower rinse-system includes universal with the alloy of the angled arrangement of flue gas flow direction
Nozzle, the water that nozzle sprays can clean absorption tower entrance, and the universal nozzle of the alloy is equidistantly evenly arranged on flushing water branch pipe
On, the flushing water branch pipe is connected to flushing water main pipe, and the flushing water main pipe is connected to this coupled system technique supply mains.
Further, motor-driven valve, electric control valve and electromagnetic flowmeter, the electricity are set in the flushing water main pipe
Dynamic valve, electric control valve and electromagnetic flowmeter start stop signal are connected on FGD-DCS, with flue-gas temperature, absorption tower system resistance etc.
Parametric linkage.
Further, motor-driven valve, the motor-driven valve, electric control valve are set in the coupled system process water main pipe
And electromagnetic flowmeter start stop signal is connected on FGD-DCS, with the parametric linkages such as flue-gas temperature, absorption tower system resistance.
A kind of smoke-gas wet desulfurization system flue gas cool-down provided by the utility model and absorption tower entrance automatic flushing device,
Conventional smoke gas spraying ventilating device and absorption tower manual cleaning mode can be substituted, and the degree of automation is higher.By into
The flue gas spray for entering absorption tower, can be effectively reduced flue-gas temperature to alleviate the severity of absorption tower entrance Dry-wet interface；It is logical
The flushing to absorption tower inlet is crossed, the deposition of gypsum and dust can be effectively reduced.In addition, coupling device and flue-gas temperature,
The progress of the parameters such as absorption tower resistance is chain, to realize the automatic progress of flue gas spraying cooling and absorption tower flushing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1.
Specific embodiment
Below by application example, and in conjunction with attached drawing, the utility model is described in further detail:
Embodiment 1
As shown in Figure 1, a kind of smoke-gas wet desulfurization system flue gas cool-down of the utility model rushes automatically with absorption tower entrance
Cleaning device includes absorption tower gas approach 1, flue-gas temperature monitor 2, flue gas pressures monitor 3, technique supply mains, and 4, process water
General pipeline electric switching valve 5, spraying cooling jellyfish pipe 6, spraying cooling jellyfish pipe electric switching valve 7, spraying cooling jellyfish pipe are adjusted
Valve 8, spraying cooling water regulating valve service valve 9, spraying cooling jellyfish pipe electromagnetic flowmeter 10, shower water branch pipe 11, spray nozzle
12, flushing water main pipe 13, flushing water main pipe electric switching valve 14, flushing water main pipe regulating valve 15, the inspection of flushing water main pipe regulating valve
Repair valve 16, flushing water main pipe electromagnetic flowmeter 17, flushing water branch pipe 18, Flushing nozzle 19, desulfurization automatic control system (FGD-
DCS)20。
Wherein, flue-gas temperature monitor 2, flue gas pressures monitor 3 are mounted on absorption tower gas approach 1 by interface.
Technique supply mains electric switching valve 5 is placed on technique supply mains 4.
Spraying cooling jellyfish pipe 6, spraying cooling jellyfish pipe electric switching valve 7, spraying cooling jellyfish pipe regulating valve 8, spray
Cool down water regulating valve service valve 9, and spraying cooling jellyfish pipe electromagnetic flowmeter 10 is mounted in spraying cooling main pipe 6.
Flushing water main pipe electric switching valve 14, flushing water main pipe regulating valve 15, flushing water main pipe regulating valve service valve 16, punching
Wash water main pipe electromagnetic flowmeter 17 is mounted in flushing water main pipe 13.
It is at least mounted on shower water branch pipe 11 there are two spray nozzle 12, the horizontal interval of two spray nozzles 12 is set as
H1, wherein 10mm≤H1≤1000mm；At least two shower water branch pipes 11 are placed in flue 1, two shower water branch pipes 11
Perpendicular separation is set as H2, wherein 20mm≤H2≤2000mm；11 one end of shower water branch pipe is fixed in flue 1, and one end passes through set
Pipe is connect with spraying cooling jellyfish pipe 6.
It is at least mounted on flushing water branch pipe 18 there are two Flushing nozzle 19, the horizontal interval of two Flushing nozzles 19 is set as
H3, wherein 10mm≤H3≤1000mm；18 one end of flushing water branch pipe is fixed in flue 1, and one end is by casing and rinses jellyfish
Pipe 13 connects.
In addition, flue-gas temperature monitor 2, flue gas pressures monitor 3, technique supply mains electric switching valve 5, spraying cooling water
Main pipe electric switching valve 7, spraying cooling jellyfish pipe regulating valve 8, spraying cooling jellyfish pipe electromagnetic flowmeter 10, flushing water main pipe electricity
Dynamic switch valve 14, flushing water main pipe regulating valve 15, flushing water main pipe electromagnetic flowmeter 17 wait instrument valves I/O signal to pass through instrument control
Cable transfer is into desulfurization automatic control system (FGD-DCS) 20.
Flue gas cool-down provided by the utility model and absorption tower auto-flushing coupling device working principle are as follows:
Wet desulphurization original flue gas enters wet desulfuration tower by flue 1.Flue-gas temperature monitor 2, flue gas pressures monitor 3
It is mounted on flue 1 by adapter tube, flue-gas temperature monitor 2 and flue gas pressures monitor 3 are each responsible for real time on-line monitoring cigarette
Gas temperature and pressure, and by electric signal transmission into desulfurization automatic control system (FGD-DCS) 20.
Technique supply mains electric switching valve 5 is in normally open, spraying cooling jellyfish pipe electric switching valve 7, spraying cooling
Jellyfish pipe regulating valve 8 is in normally off and is arranged with flue-gas temperature chain；Flushing water main pipe electric switching valve 14, flushing water
Main pipe regulating valve 15 is in normally off and is arranged with flue gas pressures chain.
When flue-gas temperature is more than set temperature, 7 automatic linkage of spraying cooling jellyfish pipe electric switching valve is opened, and is sprayed simultaneously
Leaching 8 automatic linkage of temperature lowering water main pipe regulating valve is opened into valve maximum opening, and process water is entered by spraying cooling jellyfish pipe 6 to be sprayed
Water branch pipe 11 finally sprays into flue 1 after the atomization of spray nozzle 12, since selected 12 atomizing particle size of spray nozzle is smaller, spray
Firing angle degree is bigger, and cooling effect is more preferable compared with traditional drop, can reduce former flue-gas temperature moment.As flue-gas temperature gradually drops
Low, 8 aperture of spraying cooling jellyfish pipe regulating valve gradually decreases, when flue-gas temperature is lower than setting value, spraying cooling jellyfish pipe tune
It saves 8 automatic linkage of valve to close, after several seconds, spraying cooling jellyfish pipe electric switching valve 7 also close by automatic linkage.
When flue gas pressures loss is more than setting value, 14 automatic linkage of flushing water main pipe electric switching valve is opened, and is rushed simultaneously
15 automatic linkage of wash water main pipe regulating valve is opened into valve maximum opening, and process water enters flushing water branch pipe by flushing water main pipe 13
18, then after the atomization of Flushing nozzle 19, rinse absorption tower flue entrance bottom plate at a certain angle downwards to clean inlet stone
Cream and flue dust.Losing with flue gas pressures reduces, and 15 aperture of flushing water main pipe regulating valve gradually decreases, when flue gas pressures loss is low
When setting value, 15 automatic linkage of flushing water main pipe regulating valve is closed, after several seconds, flushing water main pipe electric switching valve 14 also from
Move chain closing.
Above description is only the chain operation logic of the independence of flue gas cool-down and flusher under respective trigger condition, removes this
Except, spraying cooling jellyfish pipe electric switching valve 7, spray drop can be set in desulfurization automatic control system (FGD-DCS) 20
Warm water main pipe regulating valve 8 and flushing water main pipe electric switching valve 14, flushing water main pipe regulating valve 15 periodically automatically turn on program.
The sequence opening degree of this coupling device also can be set in desulfurization automatic control system (FGD-DCS) 20 simultaneously, i.e., first certainly
It moves and opens spraying cooling jellyfish pipe electric switching valve 7 and spraying cooling jellyfish pipe regulating valve 8, after interval of time, then automatically
Flushing water main pipe electric switching valve 14 and flushing water main pipe regulating valve 15 are opened, vice versa.
It can be seen from the above description that the utility model the above embodiments are realized that
Flue gas cool-down provided by the utility model and absorption tower auto-flushing coupling device, may be implemented flue gas cool-down and
Absorption tower rinse automatic running and can accurately control, so that technique water consumption and manual cleaning cost be greatly lowered.
The above descriptions are merely preferred embodiments of the present invention, and the description is not restricted to the utility model.
Therefore, if those skilled in the art is inspired by the spirit and principles of the utility model, in the ancestor for not departing from the utility model
In the case of purport, any change, improvement and equivalent replacement for being done etc., should be included in the protection scope of the utility model it
It is interior.
Claims (5)
1. a kind of wet method fume desulfurizing system flue gas cool-down and absorption tower auto-flushing coupling device, it is characterised in that: setting exists
In the flue of absorption tower, including flue gas cool-down spray system and absorption tower rinse-system, including flue gas cool-down spray system and absorption
Tower rinse-system is coupled by FGD-DCS individually or simultaneously to carry out flue gas cool-down or absorption tower and rinse.
2. wet method fume desulfurizing system flue gas cool-down as described in claim 1 and absorption tower auto-flushing coupling device, special
Sign is: the flue gas cool-down spray system includes the alloy spiral nozzle for being parallel to flue gas flow direction arrangement, the alloy
On shower water branch pipe, the shower water branch pipe is connected on spraying cooling jellyfish pipe spiral nozzle equidistant placement, described
Spraying cooling jellyfish pipe is connected to this coupled system technique supply mains.
3. wet method fume desulfurizing system flue gas cool-down as claimed in claim 2 and absorption tower auto-flushing coupling device, special
Sign is: setting motor-driven valve, electric control valve and electromagnetic flowmeter on the spraying cooling jellyfish pipe, the motor-driven valve,
Electric control valve and electromagnetic flowmeter start stop signal are connected on FGD-DCS, are connected with flue-gas temperature, absorption tower system drag parameter
Lock.
4. wet method fume desulfurizing system flue gas cool-down and absorption tower auto-flushing as described in claim 1-3 any claim
Coupling device, it is characterised in that: the absorption tower rinse-system includes logical with the alloy of the angled arrangement of flue gas flow direction
With type nozzle, the water that nozzle sprays can clean absorption tower entrance, and the universal nozzle of the alloy is equidistantly evenly arranged on flushing water
On branch pipe, the flushing water branch pipe is connected to flushing water main pipe, and it is total that the flushing water main pipe is connected to this coupled system process water
Pipe.
5. wet method fume desulfurizing system flue gas cool-down as claimed in claim 4 and absorption tower auto-flushing coupling device, special
Sign is: motor-driven valve, electric control valve and electromagnetic flowmeter be set in the flushing water main pipe, it is the motor-driven valve, electronic
Regulating valve and electromagnetic flowmeter start stop signal are connected on FGD-DCS, chain with flue-gas temperature, absorption tower system drag parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889482.6U CN208757294U (en) | 2017-12-29 | 2017-12-29 | A kind of wet method fume desulfurizing system flue gas cool-down and absorption tower auto-flushing coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889482.6U CN208757294U (en) | 2017-12-29 | 2017-12-29 | A kind of wet method fume desulfurizing system flue gas cool-down and absorption tower auto-flushing coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208757294U true CN208757294U (en) | 2019-04-19 |
Family
ID=66124786
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721889482.6U Expired - Fee Related CN208757294U (en) | 2017-12-29 | 2017-12-29 | A kind of wet method fume desulfurizing system flue gas cool-down and absorption tower auto-flushing coupling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208757294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112121624A (en) * | 2020-10-29 | 2020-12-25 | 西安热工研究院有限公司 | A kind of desulfurization absorption tower inlet spray system and its control method |
-
2017
- 2017-12-29 CN CN201721889482.6U patent/CN208757294U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112121624A (en) * | 2020-10-29 | 2020-12-25 | 西安热工研究院有限公司 | A kind of desulfurization absorption tower inlet spray system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A coupling device for flue gas cooling and automatic flushing of absorption tower in wet flue gas desulfurization system Effective date of registration: 20211206 Granted publication date: 20190419 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: PYNEO CO.,LTD. Registration number: Y2021980014098 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220322 Granted publication date: 20190419 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: PYNEO CO.,LTD. Registration number: Y2021980014098 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A coupling device between flue gas cooling and automatic flushing of absorption tower in wet flue gas desulfurization system Effective date of registration: 20220322 Granted publication date: 20190419 Pledgee: Shanghai Guotai Junan Securities Asset Management Co.,Ltd. Pledgor: PYNEO CO.,LTD. Registration number: Y2022990000160 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230131 Granted publication date: 20190419 Pledgee: Shanghai Guotai Junan Securities Asset Management Co.,Ltd. Pledgor: PYNEO CO.,LTD. Registration number: Y2022990000160 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 |
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| CF01 | Termination of patent right due to non-payment of annual fee |