CN103706474B - A kind of electric bag combined shunting three condition deduster - Google Patents
A kind of electric bag combined shunting three condition deduster Download PDFInfo
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- CN103706474B CN103706474B CN201310714006.0A CN201310714006A CN103706474B CN 103706474 B CN103706474 B CN 103706474B CN 201310714006 A CN201310714006 A CN 201310714006A CN 103706474 B CN103706474 B CN 103706474B
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Abstract
<b> the present invention relates to </b><bGreatT.Gre aT.GT mono-kind electric bag combination </b><bGreatT.Gre aT.GT and shunts three condition deduster, comprise electric cleaner, bag dust collector, blast pipe and discharge pipe, blast pipe is connected with electric cleaner, and electric cleaner is connected with bag dust collector; Electric cleaner comprises electric cleaner casing, and electric cleaner casing has electric cleaner air outlet, and electric cleaner air outlet is provided with electric cleaner outlet valve; Bag dust collector comprises bag dust collector casing, be located at bag dust collector air-purifying chamber above bag dust collector casing, and bag dust collector air-purifying chamber has bag dust collector air outlet, and the air outlet of bag dust collector is provided with bag dust collector outlet valve; Electric cleaner air outlet, bag dust collector air outlet are connected with discharge pipe simultaneously.</b><bGreatT.Gre aT.GT present invention incorporates the advantage of electricity, bag dust collector; can partition running, mutually switch, work simultaneously; give full play to the feature of electricity, bag dust collector; while protecting each equipment, meet the requirement of environmental protection.</b>
Description
Technical field
the present invention relates to dedusting technology field, particularly relate to a kind of electric bag combined shunting three condition deduster.
Background technology
the dust removal mechanism of electric cleaner is charged in high voltage electric field based on dust, and then is trapped in object dust collecting pole plate reaching the separation of grey gas.Fine dust due to particle diameter little, lightweight, carrying capacity own is low, and produces reasons such as " reentrainment of dusts " due to vibration dust-cleaning, be difficult to collected by electric cleaner.The dust removal mechanism that can be described as electric cleaner itself limits the further raising of its efficiency of dust collection, and conventional electric cleaner will reach 20mg/Nm
3
this new discharge standard is very difficult or uneconomical.
sack cleaner reaches dedusting object by filtrate and the mechanical filter effect being attached to the dust layer on filtrate.The fine dust that electric cleaner is difficult to trap adopts sack cleaner to be then easy to be collected.Maximum feature in sack cleaner performance is the efficiency of dust collection of its superelevation, and does not almost have much impacts on larger some factors (fluctuation etc. as dust specific resistance, smoke components, Inlet dust concentration, exhaust gas volumn) of ESP Efficiency impact to the efficiency of dust collection of sack cleaner.In the face of more strict dust emission standard, bag type dust removing technology can meet the needs of the reliable and stable operation of fire coal boiler fume dedusting completely.
filter bag is the critical elements in sack cleaner, and within the scope of the flue-gas temperature of applicable filter bag material capability, when filter bag normally works, sack cleaner has very high efficiency of dust collection.Suddenly raise for avoiding flue-gas temperature in dust pelletizing system; or when boiler occurs to economize coal gas, reheater, superheater, water-cooling wall four-tube leakage or booster; particularly when boiler frequent shutdown; after shutdown again ignition trigger time the oil smoke that produces can produce harmful effect to the use of filter bag; a kind of instructions for use that can meet sack cleaner; possess again electric cleaner can adapt to high temperature, high humidity, oily the deduster of flue dust in order to solve above-mentioned known deduster structure Problems existing, be all very urgent technically and economically.
Summary of the invention
the object of this invention is to provide a kind of electric bag combined shunting three condition deduster.
for achieving the above object, the technical solution used in the present invention is:
because technique scheme is used, the present invention compared with prior art has features:
electric precipitation subregion is mainly used in the oil smoke produced when trapping ignition of the boiler, when boiler occurs to economize coal gas, reheater, superheater, when water-cooling wall four-tube leakage or booster, also electric precipitation subregion can be switched to, avoid high temperature, the oil smoke of high humidity and make the situation that bag dust collector can not put into operation, conventional bag dust collector flue gas when above-mentioned situation is discharged from by-pass line, if the frequent starting igniting again of boiler frequent shutdown, a large amount of flue gas can pollute air from by-pass line discharge, then flue dust can be collected when electric precipitation subregion is devoted oneself to work, reduce atmosphere pollution,
after ignition of the boiler normal operation input, when the temperature of flue gas, humidity are normal, bag dedusting subregion puts into operation, utilize effective filter to carry out intensive filtration, to meet fume emission requirement up to standard, there is dust removing effects and stablize, concentration of emission is low, the feature of excellent performance;
electric precipitation subregion and bag dedusting subregion put into operation simultaneously, the flue gas considerably reducing dust concentration after the trapping of electric precipitation subregion enters in bag dedusting subregion by air flow guiding plate, efficiently avoid big dust particle washing away filter bag under inertia force effect, be conducive to the raising of life of bag filter.Due to dust under electric field force effect with like charges, filter bag outer surface attachment dust relatively shallow loose, the gas permeability of filtration is very good, makes deashing more easy simultaneously, thus can effectively reduce equipment running resistance, raising efficiency of dust collection.
Accompanying drawing explanation
accompanying drawing 1 is the front view of the present embodiment;
accompanying drawing 2 is the top view of the present embodiment;
accompanying drawing 3 is A-A sectional view in accompanying drawing 1;
accompanying drawing 4 is B-B sectional view in accompanying drawing 1.
wherein: 1, blast pipe; 2, electric cleaner casing; 3, electric cleaner outlet valve; 4, electric cleaner discharge pipe; 5, bag dust collector casing; 6, bag dust collector air-purifying chamber; 7, bag dust collector outlet valve; 8, discharge pipe; 9, inner sealed board; 10, air intake air flow guiding plate; 11, jetting deashing assembly; 12, filter assemblies; 13, electric precipitation polar curve, pole plate.
Detailed description of the invention
below in conjunction with drawings and Examples, the invention will be further described:
one electricity bag combined shunting three condition deduster as shown in Figure 1, 2, comprise electric cleaner, bag dust collector, blast pipe 1 and discharge pipe 4, blast pipe 1 is connected with electric cleaner, electric cleaner is connected with bag dust collector, is provided with air intake air flow guiding plate 10 between electric cleaner, bag dust collector.Specifically:
as shown in Figure 3: electric cleaner comprises a whole set of dust pelletizing system: specifically comprise an electric cleaner casing 2, supporting in electric cleaner casing 2 have electric precipitation polar curve, pole plate 13; Electric cleaner casing 2 has electric cleaner air outlet, and electric cleaner air outlet is provided with electric cleaner outlet valve 3, and electric cleaner air outlet is connected by electric cleaner discharge pipe 4 with discharge pipe 8.In the present embodiment: electric cleaner discharge pipe 4 is provided with two, and be arranged on the both sides on bag dust collector casing 5 top or be arranged on the middle part of bag dust collector air-purifying chamber 6.In addition, electric cleaner outlet valve 3 is that dual-pressure formula is without external leakage valve.
as shown in Figure 4: bag dust collector comprises bag dust collector casing 5, be located at bag dust collector air-purifying chamber 6 above bag dust collector casing, bag dust collector air-purifying chamber 6 has bag dust collector air outlet, the air outlet of bag dust collector is provided with bag dust collector outlet valve 7, and bag dust collector air outlet is connected with discharge pipe 8.Bag dust collector also comprises the filter assemblies 12(filter bag be arranged in bag dust collector casing 5), the jetting deashing assembly 11 be arranged in bag dust collector air-purifying chamber 6, jetting deashing assembly 11 is arranged on both sides or the top of bag dust collector air-purifying chamber 6.In the present embodiment: bag dust collector outlet valve 7 leaks valve for pressure type leakage less, bag dust collector air-purifying chamber 6 is provided with hand-lift type sealing tegillum, is convenient to carry out maintenance and changes bag work.In addition, discharge pipe 8 and bag dust collector casing 5 fit, and are separated by by inner sealed board 9.
the concrete course of work setting forth lower the present embodiment below:
the flue gas coming from boiler enters into electric bag combined shunting three condition blast pipe through flue:
duty one: when ignition trigger produces a large amount of oil smoke again after boiler down, now bag dust collector casing 5 does not run, close the bag dust collector outlet valve 7 on bag dust collector casing 5 top, open the electric cleaner outlet valve 3 on electric cleaner casing 2 top, electric cleaner casing 2 puts (high voltage source power transmission) into operation, the oil smoke produced during trapping igniting, electric precipitation polar curve is provided with in electric cleaner casing 2, pole plate 13, dust in flue gas is by the passage with DC high voltage electric field, dust is charged, dust with negative electrical charge tends to pole plate under the effect of electric field force, adsorbing powder dust is on pole plate and discharge electric charge, carry out vibration dust-cleaning by mechanical vibrator mechanism to pole plate, the dust be gathered on pole plate is just shaken and is fallen in ash bucket, and the air-flow after electric precipitation trapping flue dust enters discharge pipe 8 by electric cleaner outlet valve 3, electric cleaner discharge pipe 4.
duty two: after ignition of the boiler normal operation input, the bag dust collector outlet valve 7 on opened pocket dust collector box body 5 top, bag dust collector casing 5 puts into operation, close electric cleaner outlet valve 3, now electric cleaner casing 2 does not run (high voltage source is power transmission not), boiler smoke carries out sedimentation at electric cleaner casing 2, then flue gas enters bag dust collector casing 5, bag dust collector casing 5 interior forward end is provided with air intake air flow guiding plate 10, efficiently avoid big dust particle washing away filter bag under inertia force effect; Flue gas stream enters bag dust collector casing 5, flue gas stream evenly rises in dust-removing box 5, flue dust is through filter assemblies 12, be captured in the dust on filter bag and fallen ash bucket by shaking after the winding-up effect of jetting deashing assembly 11, the clean gas after filtration enters discharge pipe 8 by bag dust collector air-purifying chamber 6 and bag dust collector outlet valve 7.
duty three: when boiler smoke condition is normal, or as required, electric cleaner and bag dust collector put into operation simultaneously, now close electric cleaner outlet valve 3, opened pocket deduster outlet valve 7, electric cleaner casing 2 puts (high voltage source power transmission) into operation, boiler smoke enters electric cleaner casing 2, dust in flue gas is by the passage with DC high voltage electric field, dust is charged, dust with negative electrical charge tends to pole plate under the effect of electric field force, and adsorbing powder dust is on pole plate and discharge electric charge; Carry out vibration dust-cleaning by mechanical vibrator mechanism to pole plate, the dust be gathered on pole plate is just shaken and is fallen in ash bucket; Now bag dust collector casing 5 also puts into operation, and bag dust collector casing 5 interior forward end is provided with air intake air flow guiding plate 10, efficiently avoid big dust particle washing away filter bag under inertia force effect; Flue gas stream after electric precipitation trapping flue dust enters bag dust collector casing 5, flue gas stream evenly rises in dust-removing box 5, flue dust is through filter assemblies 12, be captured in the dust on filter bag to be shaken by the winding-up of jetting deashing assembly 11 and fall ash bucket, the clean gas after filtration enters discharge pipe 8 by bag dust collector air-purifying chamber 6 and bag dust collector outlet valve 7.
electric bag combined shunting three condition deduster of the present invention can by carrying out transformation to be achieved to electric cleaner.Wherein: former electric cleaner is three electric field structures (also can be four electric field structures), the first electric field is retained at this, make use of the shell of original electric cleaner, retain ash bucket parts, and transform accordingly, after having removed the device such as polar curve, pole plate, rapping apparatus, high tension silicon rectifier of second and third electric field, the casing of second and third electric field installs additional bag dust collector box part, filter bag, bag cage are installed, filter-bag blowing deashing device are set, set up bag dedusting partition sections.
the present embodiment deduster is divided into two subregions, and one is be electric precipitation subregion, and another is a bag dedusting subregion.Two subregion dedusting methods take shunting and cascade, and two regions can be separated, can merge again, equipment can run under three kinds of states.Electric precipitation subregion is mainly used in the oil smoke produced when trapping ignition of the boiler; Bag dedusting subregion collects boiler smoke when normally running, and utilizes effective filter to carry out intensive filtration, to meet fume emission requirement up to standard; Meanwhile, in normal operation, when temporary derangement occurs for either party in two dedusting subregions, another subregion can be switched to, there is stronger mutual compensating; When boiler smoke condition is normal, or as required, electric precipitation subregion puts into operation, and bag dedusting subregion also can drop into series operation simultaneously, and now equipment running resistance decreases, and efficiency of dust collection is improved.
the present invention's electricity bag combined shunting three condition deduster is applicable to Retrofit on electrostatic precipitator project, electricity bag combined shunting three condition deduster combines electric cleaner and sack cleaner advantage separately effectively, bag dust collector and electric cleaner partition running, mutual switching, give full play to the feature of electric cleaner and sack cleaner, to meet the working condition requirement of boiler frequent shutdown, frequent starting, can also effectively protect simultaneously due to during boiler tube bursting to the infringement of filter bag, owing to there being the existence of electric cleaner subregion, when boiler occurs to economize coal gas, reheater, superheater, when water-cooling wall four-tube leakage or booster, air intake valve before bag dedusting subregion can be closed in time according to control signal, to avoid in air-flow steam to the direct impact of filter bag, now air-flow is switched to electric cleaner subregion, electric cleaner subregion can at high temperature, dedusting work is carried out under the flue gas condition of high humidity, and the flue dust removed in flue gas, both ensure that the safety of filter bag, meet again the requirement of environmental protection.
above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (8)
1. an electric bag combined shunting three condition deduster, it is characterized in that: comprise electric cleaner, bag dust collector, blast pipe and discharge pipe, described blast pipe is connected with electric cleaner, and described electric cleaner is connected with bag dust collector; Described electric cleaner comprises electric cleaner casing, and described electric cleaner casing has electric cleaner air outlet, and described electric cleaner air outlet is provided with electric cleaner outlet valve; Described bag dust collector comprises bag dust collector casing, be located at bag dust collector air-purifying chamber above described bag dust collector casing, described bag dust collector air-purifying chamber has bag dust collector air outlet, and the air outlet of described bag dust collector is provided with bag dust collector outlet valve; Described electric cleaner air outlet, bag dust collector air outlet are connected with described discharge pipe simultaneously, described electric cleaner air outlet is connected by electric cleaner discharge pipe with discharge pipe, described electric cleaner discharge pipe is arranged on the both sides on described bag dust collector casing top or is arranged on the middle part of described bag dust collector air-purifying chamber
When opening the bag dust collector outlet valve described in described electric cleaner outlet valve, closedown: described electric cleaner runs, and described bag dust collector does not run; When the electric cleaner outlet valve described in closing, open described bag dust collector outlet valve time: described electric cleaner does not run, and described bag dust collector runs; Or described electric cleaner, bag dust collector run simultaneously.
2. one according to claim 1 electric bag combined shunting three condition deduster, is characterized in that: described electric cleaner outlet valve is that dual-pressure formula is without external leakage valve.
3. one according to claim 1 electric bag combined shunting three condition deduster, is characterized in that: described bag dust collector also comprises the filter assemblies be arranged in described bag dust collector casing, the jetting deashing assembly be arranged in described bag dust collector air-purifying chamber.
4. one according to claim 3 electric bag combined shunting three condition deduster, is characterized in that: described jetting deashing assembly is arranged on both sides or the top of described bag dust collector air-purifying chamber.
5. one according to claim 1 electric bag combined shunting three condition deduster, is characterized in that: described discharge pipe and described bag dust collector casing fit, and are separated by by inner sealed board.
6. one according to claim 1 electric bag combined shunting three condition deduster, is characterized in that: described bag dust collector outlet valve is that pressure type leakage less leaks valve.
7. one according to claim 1 electric bag combined shunting three condition deduster, is characterized in that: described bag dust collector air-purifying chamber is provided with hand-lift type sealing tegillum.
8. one according to claim 1 electric bag combined shunting three condition deduster, is characterized in that: be provided with air intake air flow guiding plate between described electric cleaner, bag dust collector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310714006.0A CN103706474B (en) | 2013-12-23 | 2013-12-23 | A kind of electric bag combined shunting three condition deduster |
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| CN201310714006.0A CN103706474B (en) | 2013-12-23 | 2013-12-23 | A kind of electric bag combined shunting three condition deduster |
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| CN103706474A CN103706474A (en) | 2014-04-09 |
| CN103706474B true CN103706474B (en) | 2016-02-10 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108379957A (en) * | 2018-05-09 | 2018-08-10 | 东莞市中海明环保科技有限公司 | A kind of fire-proof and explosion-proof off-line ash-clearing bag pulse dedusting device |
| CN114558388A (en) * | 2022-03-31 | 2022-05-31 | 沈阳远大环境工程有限公司 | Full-area charged filtering dust collector |
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| US6152988A (en) * | 1997-10-22 | 2000-11-28 | The United States Of America As Represented By The Administrator Of The Environmental Protection Agency | Enhancement of electrostatic precipitation with precharged particles and electrostatic field augmented fabric filtration |
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| CN102430313A (en) * | 2011-11-23 | 2012-05-02 | 科林环保装备股份有限公司 | Front-bag and rear-electricity combined flow distribution deduster |
| CN202893136U (en) * | 2012-10-30 | 2013-04-24 | 科林环保装备股份有限公司 | Electric bag combined dust remover with ultralong filter bags |
| CN103143224A (en) * | 2013-03-11 | 2013-06-12 | 江苏中材环境工程有限公司 | Electric-bag composite dust collector |
| CN203725259U (en) * | 2013-12-23 | 2014-07-23 | 科林环保装备股份有限公司 | Electric bag combined shunt three-state dust collector |
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2013
- 2013-12-23 CN CN201310714006.0A patent/CN103706474B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6152988A (en) * | 1997-10-22 | 2000-11-28 | The United States Of America As Represented By The Administrator Of The Environmental Protection Agency | Enhancement of electrostatic precipitation with precharged particles and electrostatic field augmented fabric filtration |
| CN2695087Y (en) * | 2003-04-15 | 2005-04-27 | 罗思玲 | Electron-bag combined dust separator |
| CN201161149Y (en) * | 2007-11-23 | 2008-12-10 | 东华大学 | Electric bag combined dust remover for dedusting of flue gas |
| CN201140022Y (en) * | 2007-12-14 | 2008-10-29 | 陈茂荣 | Electric bag composite dust wiper |
| CN102430313A (en) * | 2011-11-23 | 2012-05-02 | 科林环保装备股份有限公司 | Front-bag and rear-electricity combined flow distribution deduster |
| CN202893136U (en) * | 2012-10-30 | 2013-04-24 | 科林环保装备股份有限公司 | Electric bag combined dust remover with ultralong filter bags |
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| CN203725259U (en) * | 2013-12-23 | 2014-07-23 | 科林环保装备股份有限公司 | Electric bag combined shunt three-state dust collector |
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Effective date of registration: 20160809 Address after: Split eight communities in Wujiang District of Suzhou City, Jiangsu province 215000 Patentee after: Environmental Protection Technology Co., Ltd. Address before: Song Ling Zhen Wujiang District of Suzhou City, Jiangsu province 215222 split eight community traffic road No. 8 Patentee before: Kelin Environmental Protection Equipment, Inc. |