CN103624022A - Demister washing technology for ethylene spent caustic flue gas desulfurization and demister washing device thereof - Google Patents
Demister washing technology for ethylene spent caustic flue gas desulfurization and demister washing device thereof Download PDFInfo
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- CN103624022A CN103624022A CN201310588483.7A CN201310588483A CN103624022A CN 103624022 A CN103624022 A CN 103624022A CN 201310588483 A CN201310588483 A CN 201310588483A CN 103624022 A CN103624022 A CN 103624022A
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- mist eliminator
- demister
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- eliminator flushing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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Abstract
The invention discloses a demister washing technology for ethylene spent caustic flue gas desulfurization. A demister washing spraying system is arranged below a chimney inside a desulfurizing tower so that dynamic washing spraying can be conducted on a demister. The demister washing spraying system and a main water charging system of a gas desulfurization system are in joint debugging and joint control. When the main water charging system of the desulfurizing tower is insufficient in capacity or breaks down, dynamic washing spraying is controlled to be conducted on the demister, meanwhile, water balance of the whole gas desulfurization system can be maintained in an auxiliary mode, and the liquid level at the bottom of the desulfurizing tower is controlled to be stabilized within a set height range. The invention further provides a demister washing device which is composed of a demister washing water spraying layer, a washing water main pipe and a control switch. By means of the demister washing technology for ethylene spent caustic flue gas desulfurization and the demister washing device thereof, the defects that the demister washing water spraying layers are numerous, and valves and nozzles are also numerous in a traditional desulfurization mode are overcome, the maintenance workload is small, water resources are saved, the demister washing system for ethylene spent caustic flue gas desulfurization is simpler and more practical, the long-period efficient operating requirement is met, and maintaining is more convenient.
Description
Technical field
The present invention relates to a kind of sulfur removal technology and device thereof, particularly relate to a kind of wet fuel gas desulfurizing technology and device, be applied to flue gas desulfurization technique field and technical field of resource environments.
Background technology
Because the former flue-gas temperature in wet desulphurization is up to 120 ℃, contact after mass-and heat-transfer with desulfurization absorption liquid, clean flue gas after final desulfurization carries a large amount of saturated vapors and leaves desulfurizing tower and enter atmosphere, at this moment if maintain the water balance of whole system, just need to supplement in time fresh water (FW), otherwise absorption liquid will constantly be concentrated because moisture is unbalance, finally cause crystallization inside tower fouling, cause the obstruction of the relevant devices such as demister and pipeline, even cause the paralysis of desulphurization system.Several sulfur removal technologies such as current lime/lime stone-gypsum, ammonia process and soda method generally adopt the dull and stereotyped deflector type demister of two-stage, 3 layers of flushing water operated by rotary motion: 2 layers of upper flushing, rinse under 1 layer.On flushing line, have more valve and nozzle, once numerous valve imprecision and interior leakage occurs will bring change to the water balance situation of FGD, water balance destruction can be brought harmful effect to absorption tower operation, and fault rate is high, is difficult to safeguard.
Adopt ethylene waste lye desulfurization to have advantages of that desulfuration efficiency is high, avoided the high problem of soda method desulphurization cost simultaneously, because ethylene waste lye active ingredient concentration is lower, control the water balance of desulphurization system well, the salt generating very easily dissolves, compare with other sulfur removal technology, pipe fitting will be not easy the crystal of sulfate, sulphite and fouling in demister and tower.If adopt ethylene waste lye to carry out flue gas desulfurization, continue to continue to use the flushing of the interior pipe fitting of traditional FGD tower and demister, compare with other sulfur removal technology like this, reaching and meeting flushing object completely simultaneously, and unrealized saving water resource, reduce energy consumption and facilitate plant maintenance advantage also not obvious.
Summary of the invention
In order to solve prior art problem, the object of the invention is to overcome the deficiency that prior art exists, a kind of mist eliminator flushing technique for ethylene waste lye flue gas desulfurization and mist eliminator flushing device thereof are provided, 3 layers of traditional flushing water spray are reduced to 1 layer, this layer of rinse spray is arranged on the demister top of the superiors, adopt rotation fan nozzle, guaranteeing to still have enough area coverages when flushing water outlet pressure is greater than 0.1MPa, this layer of flushing water spraying layer has the effect of assisting moisturizing concurrently simultaneously, the auxiliary water balance that maintains desulfurizing tower system.This method is mainly considered and is adopted ethylene waste lye desulfurization, maintaining under the prerequisite of systematic water balance, desulfurizing tower inner absorbent concentration is lower, be difficult for crystallization fouling, optimize mist eliminator flushing water system, can greatly reduce mist eliminator flushing spray time and spray flux, save large flow nozzle and valve, reduced maintenance cost, especially for large petrochemical plant, utilize inner spent lye or soda Fa Dui power plant for self-supply and other sulfur-containing smoke gas device to carry out desulfurization, adopt this method to there is obvious advantage, the long-term operation and minimumization of maintenance cost that are conducive to desulfurizing tower system.
For reaching foregoing invention, create object, the present invention adopts following technical proposals:
A kind of mist eliminator flushing technique for ethylene waste lye flue gas desulfurization, in desulfurizing tower, clean flue gas through desulfurization and washing is up, enter chimney, position before clean flue gas leaves desulfurizing tower and enters chimney, below the chimney in desulfurizing tower, be provided with mist eliminator flushing spray system, can carry out dynamic rinse spray to demister, take that to be less than 8 hours be a spray irrigation cycle, in each spray irrigation cycle, keep continuous flushing operation at least 20 minutes, the main water charging system uniting and adjustment joint control of mist eliminator flushing spray system and desulphurization system, when the main water charging system scarce capacity of desulfurizing tower or fault, when control is carried out dynamic rinse spray to demister, can also assist the water balance that maintains whole desulphurization system, and at the bottom of controlling desulfurizing tower level stability within the scope of setting height.
The present invention also provides a kind of the present invention of enforcement the mist eliminator flushing device for the mist eliminator flushing technique of ethylene waste lye flue gas desulfurization, by mist eliminator flushing water spraying layer, flushing water supervisor and flushing gauge tap form, it is characterized in that: the flushing water spray pipeline of mist eliminator flushing water spraying layer is arranged on the top of the demister of the superiors, mist eliminator flushing water spraying layer is arranged in individual layer jet face by a series of mist eliminator flushing nozzles on sustained height horizontal plane, rinse gauge tap by remote control switch valve and bypass hand-operated valve independent control in parallel, wherein remote control switch valve is pneumatic or electric switching valve, by control, rinse gauge tap, make mist eliminator flushing water spraying layer carry out dynamic rinse spray to demister, the main water charging system uniting and adjustment joint control of mist eliminator flushing water spraying layer and desulphurization system, when the main water charging system scarce capacity of desulphurization system or fault, when control is carried out rinse spray to demister, mist eliminator flushing water spraying layer also assists by carry out moisturizing in desulfurizing tower the water balance that maintains whole desulphurization system, and at the bottom of controlling desulfurizing tower level stability within the scope of setting height.
The flushing water spray pipeline of above-mentioned mist eliminator flushing water spraying layer is preferably arranged between the superiors' demister top 0.1m～0.5m, flushing water shower preferably adopts FRP pipeline, flushing water spray piping inner surface is preferably provided with at least thick scuff-resistant coating of 2.5mm, flushing water spray piping outer surface is preferably provided with at least thick scuff-resistant coating of 4mm, and flushing water spray piping is at least preferably provided with 2.5mm transition arc radius at the inner surface place that has branched pipe place and the flow direction to change region.
A series of mist eliminator flushing nozzles of above-mentioned mist eliminator flushing water spraying layer all preferably adopt rotatable fan nozzle, spray angle is preferably at least 30 °, preferably by the horizontal layout of fan nozzle, in the height levels of a series of mist eliminator flushing nozzles place of mist eliminator flushing water spraying layer, eliminate spray dead angle, form the spray area face covering continuously, and keeping varying level region spray flux density identical, the fan nozzle quantity of mist eliminator flushing water spraying layer preferably will guarantee that the maximum coverage rate of spraying of desulfurizing tower inner horizontal is between 150%-300%.
The spray angle of each fan nozzle of above-mentioned mist eliminator flushing water spraying layer is preferably 60 °.
The fan nozzle of above-mentioned mist eliminator flushing water spraying layer preferably adopts 316L stainless steel to make.
The present invention compared with prior art, has following apparent outstanding substantive distinguishing features and remarkable advantage:
1. compare with mist eliminator flushing spraying layer in traditional desulfurizing tower, the mist eliminator flushing spray number of plies of the present invention has reduced 2/3rds, solid conic nozzle is substituted by rotating fan nozzle, rinse spray effect is not less than existing method, but the valve quantity of nozzle quantity and control spraying layer greatly reduces, reduced leakage point and trouble point, maintenance workload reduces greatly, is also conducive to water saving simultaneously;
2. the present invention only arranges remote control switch valve on the supervisor of the water inlet outside desulfurizing tower, and bypass manually-operated gate is set, and mist eliminator flushing spray flow process is simplified greatly, and that in the situation that system is moved, can have no effect carries out maintenance process, and it is more convenient to safeguard;
3. in the present invention, as the auxiliary moisturizing layer of desulfurizing tower, when desulfurizing tower flue gas load fluctuates, because the variation of evaporation capacity causes water requirement also to change, if the fresh water (FW) of desulphurization system supplements and to break down or during scarce capacity, mist eliminator flushing device of the present invention is opened mist eliminator flushing water desulfurizing tower assist to moisturizing, and level stability at the bottom of the auxiliary water balance that maintains whole desulphurization system and desulfurizing tower tower, meets the requirement that long period efficiently moves.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one mist eliminator flushing device.
The specific embodiment
Details are as follows for the preferred embodiments of the present invention:
embodiment mono-:
In the present embodiment, referring to Fig. 1, a kind of enforcement is for the mist eliminator flushing device of the mist eliminator flushing technique of ethylene waste lye flue gas desulfurization, by mist eliminator flushing water spraying layer 4, flushing water supervisor 1 and flushing gauge tap form, the flushing water spray pipeline of mist eliminator flushing water spraying layer 4 is arranged on the top of the demister 5 of the superiors, mist eliminator flushing water spraying layer 4 is arranged in individual layer jet face by a series of mist eliminator flushing nozzles on sustained height horizontal plane, rinse gauge tap by remote control switch valve 2 and bypass hand-operated valve 3 independent control in parallel, wherein remote control switch valve 2 is pneumatic or electric switching valve, by control, rinse gauge tap, make 4 pairs of demisters of mist eliminator flushing water spraying layer 5 carry out dynamic rinse spray, the main water charging system uniting and adjustment joint control of mist eliminator flushing water spraying layer 4 and desulphurization system, when the main water charging system scarce capacity of desulphurization system or fault, when control is carried out rinse spray to demister 5, mist eliminator flushing water spraying layer 4 also assists by carry out moisturizing in desulfurizing tower 6 water balance that maintains whole desulphurization system, and control 6 end of desulfurizing tower level stability within the scope of setting height.
In the present embodiment, referring to Fig. 1, the flushing water spray pipeline of mist eliminator flushing water spraying layer 4 is arranged on the superiors' demister 5 0.5m places, top, flushing water shower adopts FRP pipeline, flushing water spray piping inner surface is provided with the scuff-resistant coating that 2.5mm is thick, flushing water spray piping outer surface is provided with the scuff-resistant coating that 4mm is thick, and flushing water spray piping has 2.5mm transition arc radius at the inner surface place that has branched pipe place and the flow direction to change region.
In the present embodiment, referring to Fig. 1, a series of mist eliminator flushing nozzles of mist eliminator flushing water spraying layer 4 are all rotatable fan nozzle, spray angle is 30 °, by the horizontal layout of fan nozzle, in the height levels of a series of mist eliminator flushing nozzles place of mist eliminator flushing water spraying layer 4, eliminate spray dead angle, form the spray area face covering continuously, and keeping varying level region spray flux density identical, the fan nozzle quantity of mist eliminator flushing water spraying layer 4 will guarantee that the maximum coverage rate of spraying of desulfurizing tower inner horizontal is between 150%-300%.
In the present embodiment, a kind of mist eliminator flushing technique for ethylene waste lye flue gas desulfurization, main implementation step is as follows:
A, mist eliminator flushing water spraying layer 4 pipelines are arranged on to the 0.5m place, top of the interior the superiors of desulfurizing tower 6 demister 5;
The mist eliminator flushing nozzle of setting quantity is installed on b, mist eliminator flushing water spraying layer 4 pipelines, the fan nozzle of mist eliminator flushing water spraying layer adopts 316L stainless steel to make, the spray angle of fan nozzle is 30 °, guarantee that each round screw thread shape region has identical spray flux density, all nozzles are when design arrangement, by calculating and repeatedly adjusting, to avoid occurring spray dead angle, make nozzle quantity will guarantee that the maximum coverage rate of spraying is between 150%-300%;
On c, the mist eliminator flushing water before entering desulfurizing tower 6 supervisor 1, a remote control switch valve 2 and bypass hand-operated valve 3 are set, standby during as remote control switch valve 2 fault of bypass hand-operated valve 3;
When d, desulphurization system are normally moved, every 8 hours, for one-period, demister 5 is carried out to spray irrigation, rinse 20 minutes at every turn;
The main water charging system uniting and adjustment joint control of e, mist eliminator flushing water sprinkler system and desulphurization system, when main water charging system scarce capacity or fault as the auxiliary moisturizing of desulfurizing tower 5, level stability at the bottom of the auxiliary water balance that maintains whole desulphurization system and desulfurizing tower.
In the present embodiment, referring to Fig. 1, mist eliminator flushing technique for ethylene waste lye flue gas desulfurization, former flue gas 8 enters after desulfurizing tower 6, in desulfurizing tower 6, clean flue gas 9 through desulfurization and washing is up, enter chimney 7, position before clean flue gas 9 leaves desulfurizing tower 6 and enters chimney 7, below the chimney in desulfurizing tower 67, be provided with demister 5 rinse spray systems, can carry out dynamic rinse spray to demister 5, take that to be less than 8 hours be a spray irrigation cycle, in each spray irrigation cycle, keep continuous flushing operation at least 20 minutes, demister 5 is carried out to dynamic rinse spray and can form dynamic impact jet flow, demister 5 is carried out to discontinuous to be washed away, can more effectively prevent the obstruction of crystallization inside tower fouling the causes relevant devices such as demister and pipeline, and prevent secondary crystallization fouling in tower, normal and the safe operation of support equipment, the main water charging system uniting and adjustment joint control of mist eliminator flushing spray system 4 and desulphurization system, when the main water charging system scarce capacity of desulfurizing tower 6 or fault, when control is carried out dynamic rinse spray to demister 5, can also assist the water balance that maintains whole desulphurization system, and control 6 end of desulfurizing tower level stability within the scope of setting height.In the present embodiment, adopt ethylene waste lye to carry out flue gas desulfurization, flushing for the interior pipe fitting of desulfurizing tower 6 and demister 5 just can suitably improve, by process optimization, compare with other sulfur removal technology like this, reaching and meeting flushing object completely simultaneously, greatly saving water resource, simplify tower internals, be conducive to reduce energy consumption and facilitate plant maintenance.The present embodiment is the feature as desulfurizing agent for ethylene waste lye, fresh water (FW) is supplemented with the flushing of demister 5 and pipeline and considered in the lump, mist eliminator flushing mode is optimized, in the situation of flushing number of plies minimizing 2/3, still can reach flushing object, make it have the effect of auxiliary moisturizing concurrently simultaneously, be conducive to prevent demister 5 crystallization fouling and obstructions, the flue gas resistance of systems stabilisation, is conducive to maintain water balance and system long-term operation.The present embodiment has avoided that the number of plies of other desulfurization method mist eliminator flushing spraying layer 4 is many, valve and the many drawbacks of nozzle quantity, maintenance workload is little, save water resource, the mist eliminator flushing system that is used in ethylene waste lye flue gas desulfurization is more simple and practical, meet the requirement of the efficient operation of long period, it is more convenient to safeguard.
embodiment bis-:
The present embodiment and embodiment mono-are basic identical, special feature is: the spray angle of each fan nozzle of mist eliminator flushing water spraying layer 4 is 60 °, guaranteeing from the hydraulic pressure of the water bundle of the injection of nozzle and suitable nozzle quantity, guarantee to spray the uniformity of coverage rate and sprinkling, implementation structure is simplified, than implementing nozzle quantity that profit one adopts still less, can ensure to demister is carried out dynamic rinse spray, assists and maintain the needs of level stability within the scope of setting height at the bottom of the water balance of whole desulphurization system and control desulfurizing tower simultaneously.
By reference to the accompanying drawings the embodiment of the present invention is illustrated above; but the invention is not restricted to above-described embodiment; can also make multiple variation according to the object of innovation and creation of the present invention; the change of making under all Spirit Essences according to technical solution of the present invention and principle, modification, substitute, combination, simplify; all should be equivalent substitute mode; as long as goal of the invention according to the invention; only otherwise deviate from the present invention for the mist eliminator flushing technique of ethylene waste lye flue gas desulfurization and know-why and the inventive concept of mist eliminator flushing device thereof, all belong to protection scope of the present invention.
Claims (7)
1. the mist eliminator flushing technique for ethylene waste lye flue gas desulfurization, in desulfurizing tower, clean flue gas through desulfurization and washing is up, enter chimney, it is characterized in that: the position before clean flue gas leaves desulfurizing tower and enters chimney, below the chimney in desulfurizing tower, be provided with mist eliminator flushing spray system, can carry out dynamic rinse spray to demister, take that to be less than 8 hours be a spray irrigation cycle, in each spray irrigation cycle, keep continuous flushing operation at least 20 minutes, the main water charging system uniting and adjustment joint control of mist eliminator flushing spray system and desulphurization system, when the main water charging system scarce capacity of described desulfurizing tower or fault, when control is carried out dynamic rinse spray to demister, can also assist the water balance that maintains whole desulphurization system, and at the bottom of controlling desulfurizing tower level stability within the scope of setting height.
2. a mist eliminator flushing device that implements the claims the mist eliminator flushing technique for ethylene waste lye flue gas desulfurization described in 1, by mist eliminator flushing water spraying layer (4), flushing water supervisor (1) and flushing gauge tap form, it is characterized in that: the flushing water spray pipeline of described mist eliminator flushing water spraying layer (4) is arranged on the top of the demister (5) of the superiors, described mist eliminator flushing water spraying layer (4) is arranged in individual layer jet face by a series of mist eliminator flushing nozzles on sustained height horizontal plane, described flushing gauge tap is by remote control switch valve (2) and bypass hand-operated valve (3) independent control in parallel, wherein said remote control switch valve (2) is pneumatic or electric switching valve, by controlling described flushing gauge tap, make described mist eliminator flushing water spraying layer (4) carry out dynamic rinse spray to described demister (5), the main water charging system uniting and adjustment joint control of described mist eliminator flushing water spraying layer (4) and desulphurization system, when the main water charging system scarce capacity of desulphurization system or fault, when control is carried out rinse spray to described demister (5), described mist eliminator flushing water spraying layer (4) also assists by carry out moisturizing in desulfurizing tower (6) water balance that maintains whole desulphurization system, and control described desulfurizing tower (6) end level stability within the scope of setting height.
3. mist eliminator flushing device according to claim 2, it is characterized in that: the flushing water spray pipeline of described mist eliminator flushing water spraying layer (4) is arranged on described in the superiors between the 0.1m～0.5m of demister (5) top, described flushing water shower adopts FRP pipeline, described flushing water spray piping inner surface is provided with at least thick scuff-resistant coating of 2.5mm, described flushing water spray piping outer surface is provided with at least thick scuff-resistant coating of 4mm, and described flushing water spray piping has 2.5mm transition arc radius at least at the inner surface place that has branched pipe place and the flow direction to change region.
4. according to the mist eliminator flushing device described in claim 2 or 3, it is characterized in that: a series of mist eliminator flushing nozzles of described mist eliminator flushing water spraying layer (4) are all rotatable fan nozzle, spray angle is at least 30 °, by the horizontal layout of fan nozzle, in the height levels of a series of mist eliminator flushing nozzles place of described mist eliminator flushing water spraying layer (4), eliminate spray dead angle, form the spray area face covering continuously, and keep varying level region spray flux density identical, the fan nozzle quantity of described mist eliminator flushing water spraying layer (4) will guarantee that the maximum coverage rate of spraying of desulfurizing tower inner horizontal is between 150%-300%.
5. mist eliminator flushing device according to claim 4, is characterized in that: the spray angle of each fan nozzle of described mist eliminator flushing water spraying layer (4) is 60 °.
6. mist eliminator flushing device according to claim 4, is characterized in that: the fan nozzle of described mist eliminator flushing water spraying layer (4) adopts 316L stainless steel to make.
7. mist eliminator flushing device according to claim 5, is characterized in that: the fan nozzle of described mist eliminator flushing water spraying layer (4) adopts 316L stainless steel to make.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310588483.7A CN103624022A (en) | 2013-11-21 | 2013-11-21 | Demister washing technology for ethylene spent caustic flue gas desulfurization and demister washing device thereof |
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| CN201310588483.7A CN103624022A (en) | 2013-11-21 | 2013-11-21 | Demister washing technology for ethylene spent caustic flue gas desulfurization and demister washing device thereof |
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Cited By (5)
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| CN105290034A (en) * | 2015-11-25 | 2016-02-03 | 烟台创元热能科技有限公司 | Water supply system for demister flushing device |
| CN108939854A (en) * | 2018-07-31 | 2018-12-07 | 苏州科博思设备工程有限公司 | A kind of desulfurizer |
| CN111450622A (en) * | 2020-04-24 | 2020-07-28 | 大唐环境产业集团股份有限公司 | Demister flushing system capable of automatically adjusting water balance of desulfurization tower and control method |
| CN115253921A (en) * | 2022-05-25 | 2022-11-01 | 中国神华煤制油化工有限公司 | Circulation system for protecting high-temperature pipeline shock cooling washing solidification |
| CN115415219A (en) * | 2022-08-09 | 2022-12-02 | 华能国际电力江苏能源开发有限公司 | Flushing method and system for constant-pressure variable-frequency desulfurization demister |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290034A (en) * | 2015-11-25 | 2016-02-03 | 烟台创元热能科技有限公司 | Water supply system for demister flushing device |
| CN108939854A (en) * | 2018-07-31 | 2018-12-07 | 苏州科博思设备工程有限公司 | A kind of desulfurizer |
| CN111450622A (en) * | 2020-04-24 | 2020-07-28 | 大唐环境产业集团股份有限公司 | Demister flushing system capable of automatically adjusting water balance of desulfurization tower and control method |
| CN111450622B (en) * | 2020-04-24 | 2024-02-09 | 大唐环境产业集团股份有限公司 | Demister flushing system capable of automatically adjusting water balance of desulfurizing tower and control method |
| CN115253921A (en) * | 2022-05-25 | 2022-11-01 | 中国神华煤制油化工有限公司 | Circulation system for protecting high-temperature pipeline shock cooling washing solidification |
| CN115415219A (en) * | 2022-08-09 | 2022-12-02 | 华能国际电力江苏能源开发有限公司 | Flushing method and system for constant-pressure variable-frequency desulfurization demister |
| CN115415219B (en) * | 2022-08-09 | 2023-08-29 | 华能国际电力江苏能源开发有限公司 | Flushing method and system of constant-pressure variable-frequency desulfurization demister |
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Application publication date: 20140312 |