CN105498974B - Electric cleaner servicing unit and flue gas dust collecting system - Google Patents
Electric cleaner servicing unit and flue gas dust collecting system Download PDFInfo
- Publication number
- CN105498974B CN105498974B CN201510876056.8A CN201510876056A CN105498974B CN 105498974 B CN105498974 B CN 105498974B CN 201510876056 A CN201510876056 A CN 201510876056A CN 105498974 B CN105498974 B CN 105498974B
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- Prior art keywords
- electric cleaner
- servicing unit
- flue gas
- steam line
- dust collecting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
- B03C3/70—Applications of electricity supply techniques insulating in electric separators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
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- Electrostatic Separation (AREA)
- Chimneys And Flues (AREA)
- Air Supply (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of electric cleaner servicing unit and flue gas dust collecting system, electric cleaner servicing unit includes pressure fan and air preheater, pressure fan is connected by the first pipeline with air preheater, air preheater is provided with steam line, and steam line connects with the arrival end of electric cleaner interior insulation seed cell.Electric cleaner servicing unit can prevent flue gas from entering the problem of condensing on the insulator after insulator chamber, this also can effectively reduce electric cleaner therefore and the probability that breaks down, and then be greatly enhanced dust treatment efficiency and the life-span of electric cleaner.Flue gas dust collecting system includes above-mentioned electric cleaner servicing unit, therefore it also has higher dust removal process efficiency, lower rate of breakdown and longer life-span.
Description
Technical field
The present invention relates to fume treatment technical field, more particularly to a kind of electric cleaner servicing unit and flue gas ash removal system
System.
Background technology
At present, electric cleaner is the corollary equipment in thermal power plant, and its function is by combustion stove or oil burning boiler discharge cigarette
Particle dust in gas is removed, and so as to which the fume amount being discharged into atmosphere be greatly lowered, is to improve environmental pollution, is improved
The important environmental protection equipment of air quality.Main part is the insulator in its inner insulator room in electric cleaner, still, when
When the flue gas of high temperature runs into the electric cleaner internals of low temperature, the flue-gas temperature of its regional area is likely to decrease flue gas acid
Below dew-point temperature, flue gas middle acid substance (such as sulfuric acid vapor) and water start to condense and are attached on component, once attachment
On high-tension insulator, it will insulator surface is lost insulating capacity, so as to cause the electric field high pressure of inside insulating
The frequent flashover of son place generation, arcing, or even short circuit can be caused, make electric cleaner can not normal operation, and then greatly reduce cigarette
Dirt treatment effeciency.
The content of the invention
Based on this, the defects of it is an object of the invention to overcome prior art, there is provided a kind of electric cleaner servicing unit and
Flue gas dust collecting system, electric cleaner servicing unit can prevent flue gas enter insulator chamber after condense on the insulator ask
Topic.Flue gas dust collecting system including above-mentioned electric cleaner servicing unit at least also has beneficial caused by electric cleaner servicing unit
Effect.
Its technical scheme is as follows：
A kind of electric cleaner servicing unit, including pressure fan and air preheater, pressure fan pass through the first pipeline and air
Preheater connects, and air preheater is provided with steam line, and steam line connects with the arrival end of electric cleaner interior insulation seed cell.
In one of the embodiments, second pipe is provided between first pipeline and the steam line, it is described to send
Blower fan can be connected by second pipe with the steam line, and the steam line is provided with control valve, control valve position
Between second pipe and the electric cleaner.
In one of the embodiments, the steam line is provided with the first control valve, and the first control valve is located at institute
State between air preheater and the second pipe, the second pipe is provided with the second control valve.
In one of the embodiments, the first isolation valve is additionally provided with the steam line, the first isolation valve is located at
Between the air preheater and first control valve, be additionally provided with the second isolation valve on the second pipe, second every
Exhausted valve is between first pipeline and second control valve.
A kind of flue gas dust collecting system, including smoke conveying duct, smoke-gas preheater, coal saving device, electric cleaner and above-mentioned
Electric cleaner servicing unit, smoke conveying duct, smoke-gas preheater, coal saving device, electric cleaner be sequentially communicated, electric cleaner
Servicing unit connects with the arrival end of electric cleaner interior insulation seed cell.
In one of the embodiments, the air preheater in the electric cleaner servicing unit is the smoke pre-heating
Device.
In one of the embodiments, the coal saving device includes multiple low-level (stack-gas) economizers, and the electric cleaner includes more
Individual insulation subgroup, multiple insulation subgroups are all located in the insulator chamber of the electric cleaner, low-level (stack-gas) economizer and insulation subgroup one
One correspondence.
In one of the embodiments, the steam line of the electric cleaner servicing unit includes multiple branch pipes, Duo Gezhi
Pipe corresponds with multiple insulation subgroups.
In one of the embodiments, flue gas dust collecting system also includes desulfurizer, desulfurizer and the electric cleaner
The port of export connection.
The advantages of below to preceding solution or principle illustrate：
In above-mentioned electric cleaner servicing unit and flue gas dust collecting system, blower-use in electric cleaner servicing unit in
Air is provided, air preheater is used to heat for air, and the air by heating is passed through in electric cleaner interior insulation seed cell, is improved
Temperature in insulator chamber, so as to prevent flue gas from entering after insulator chamber the problem of condensing on the insulator, this
The electric cleaner therefore probability that breaks down, and then be greatly enhanced the dust treatment efficiency of electric cleaner can effectively be reduced
And the life-span.Flue gas dust collecting system includes above-mentioned electric cleaner servicing unit, thus its also have higher dust removal process efficiency,
Lower rate of breakdown and longer life-span.
Brief description of the drawings
Fig. 1 is the structural representation of the electric cleaner servicing unit described in the embodiment of the present invention；
Fig. 2 is the structural representation of the flue gas dust collecting system described in the embodiment of the present invention.
Description of reference numerals：
1st, electric cleaner servicing unit, 11, pressure fan, 12, air preheater, 13, steam line, 131, control valve,
132nd, the first control valve, the 133, first isolation valve, the 14, first pipeline, 15, second pipe, the 151, second control valve,
152nd, the second isolation valve, 2, electric cleaner, 21, insulator chamber, 22, insulation subgroup, 3, smoke-gas preheater, 4, flue gas delivery pipe
Road, 5, coal saving device, 51, low-level (stack-gas) economizer, 6, desulfurizer.
Embodiment
Embodiments of the invention are described in detail below：
As shown in figure 1, being a kind of electric cleaner servicing unit 1, it includes pressure fan 11 and air preheater 12, pressure fan
11 are connected by the first pipeline 14 with air preheater 12, and air preheater 12 is provided with steam line 13, steam line 13 with
The arrival end connection of the interior insulation seed cell 21 of electric cleaner 2.Wherein, pressure fan 11 is used to provide air, and air preheater 12 is used for
Being heated for air, the air by heating is passed through in the interior insulation seed cell 21 of electric cleaner 2, improves the temperature in insulator chamber 21,
So as to prevent flue gas from entering after insulator chamber 21 the problem of condensing on the insulator, this also can effectively reduce electricity and remove
Therefore probability that dirt device 2 breaks down, and then it is greatly enhanced dust treatment efficiency and the life-span of electric cleaner 2.
As shown in Fig. 2 being a kind of flue gas dust collecting system, it includes smoke conveying duct 4, smoke-gas preheater 3, coal saving device
5th, electric cleaner 2 and above-mentioned electric cleaner servicing unit 1, smoke conveying duct 4, smoke-gas preheater 3, coal saving device 5, electricity remove
Dirt device 2 is sequentially communicated, and electric cleaner servicing unit 1 connects with the arrival end of the interior insulation seed cell 21 of electric cleaner 2.Wherein, electricity removes
The air preheater 12 of dirt device servicing unit can be individually present, and also may be incorporated into smoke-gas preheater 3.This flue gas dust collecting system has more
High dust removal process efficiency, lower rate of breakdown and the longer life-span.
In the present embodiment, second pipe 15 is provided between the first pipeline 14 and steam line 13, pressure fan 11 passes through second
Pipeline 15 can be connected with steam line 13, and steam line 13, which is provided with, to be used to control the control valve 131 whether ventilated in it,
Control valve 131 is between second pipe 15 and electric cleaner 2.Wherein, the partial air in the first pipeline 14 passes through second
Pipeline 15 enters steam line 13 and forms mixed gas with the air heated by air preheater 12, is then passed through electric precipitation again
In the insulator chamber 21 of device 2.When air preheater 12 is incorporated to the bigger preheater of power requirement, which can increase existing
The utilization ratio of the energy, so as to reduce extra energy consumption.For example, such as the flue gas dust collecting system in Fig. 2, air preheater 12 is
Smoke-gas preheater 3, in flue gas dust collecting system, smoke-gas preheater 3 needs to preheat the flue gas in smoke conveying duct 4,
Temperature is unlikely to too low when making flue gas by entering electric cleaner 2 behind coal saving device 5, and flue gas is after the heating of smoke-gas preheater 3
Temperature is 300-400 DEG C, and now the temperature of the air in the first pipeline 14 is 0-50 DEG C, and temperature can be obtained after two-phase mixtures
Meet the requirements the mixed gas of (such as 100-150 DEG C or other temperature).
In the present embodiment, steam line 13 is provided with the first control valve 132, and it is pre- that the first control valve 132 is located at air
Between hot device 12 and second pipe 15, second pipe 15 is provided with the second control valve 151；First is additionally provided with steam line 13
Completely cut off valve 133, the first isolation valve 133 is located between the control valve 132 of air preheater 12 and first, on second pipe 15
The second isolation valve 152 is additionally provided with, the second isolation valve 152 is between the first pipeline 14 and the second control valve 151.Its
In, the flow of the first control valve 132 and the first isolation valve 133 for controlling air in steam line 13, the second regulating valve
The isolation valve 152 of door 151 and second is used for the flow for controlling air in second pipe 15, so as to by steam line 13
Air in air and second pipe 15 is according to required carry out mixing preparation, for example, the temperature of above-mentioned mixed gas can be allocated.
In the present embodiment, filter is additionally provided with steam line 13, filter is located at control valve 131 and electric cleaner 2
Between, for removing the impurity in air or mixed gas, for example, can remove contained by the flue gas in flue gas dust collecting system
Hot blast ash and other impurities.
In the present embodiment, coal saving device 5 includes multiple low-level (stack-gas) economizers 51, and electric cleaner 2 includes multiple insulation subgroups 22,
Multiple insulation subgroups 22 are all located in the insulator chamber 21 of electric cleaner 2, and low-level (stack-gas) economizer 51 corresponds with insulation subgroup 22,
The pipeline of steam line 13 of electric cleaner servicing unit includes multiple branch pipes, a pair of multiple branch pipes and multiple insulation subgroups 22 1
Should, which is advantageous to improve the dust removal process efficiency of flue gas.Flue gas dust collecting system also includes desulfurizer 6, desulfurizer 6 with
The port of export connection of electric cleaner 2, for removing the sulfurous gas in flue gas.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of electric cleaner servicing unit, it is characterised in that including pressure fan and air preheater, pressure fan passes through the first pipe
Road connects with air preheater, and air preheater is provided with steam line, and steam line enters with electric cleaner interior insulation seed cell
The connection of mouth end, is provided with second pipe, the pressure fan passes through second pipe energy between first pipeline and the steam line
Enough to be connected with the steam line, the steam line is provided with control valve, and control valve is located at second pipe and the electricity
Between deduster.
2. electric cleaner servicing unit according to claim 1, it is characterised in that the steam line is provided with first and adjusted
Valve is saved, the first control valve is positioned at the air preheater and the second pipe between, and the second pipe is provided with the
Two control valves.
3. electric cleaner servicing unit according to claim 2, it is characterised in that be additionally provided with first on the steam line
Completely cut off valve, the first isolation valve is between the air preheater and first control valve, on the second pipe
The second isolation valve is additionally provided with, the second isolation valve is between first pipeline and second control valve.
4. a kind of flue gas dust collecting system, it is characterised in that including smoke conveying duct, smoke-gas preheater, coal saving device, electric precipitation
Electric cleaner servicing unit any one of device and the claims 1 to 3, smoke conveying duct, smoke-gas preheater, province
Device for coal, electric cleaner are sequentially communicated, and electric cleaner servicing unit connects with the arrival end of electric cleaner interior insulation seed cell.
5. flue gas dust collecting system according to claim 4, it is characterised in that the air in the electric cleaner servicing unit
Preheater is the smoke-gas preheater.
6. flue gas dust collecting system according to claim 4, it is characterised in that the coal saving device includes multiple low temperature and saves coal
Device, the electric cleaner include multiple insulation subgroups, and multiple insulation subgroups are all located in the insulator chamber of the electric cleaner, low
Warm economizer corresponds with insulation subgroup.
7. flue gas dust collecting system according to claim 6, it is characterised in that the air supply pipe of the electric cleaner servicing unit
Road includes multiple branch pipes, and multiple branch pipes correspond with multiple insulation subgroups.
8. flue gas dust collecting system according to claim 6, it is characterised in that also including desulfurizer, desulfurizer and institute
State the port of export connection of electric cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876056.8A CN105498974B (en) | 2015-12-01 | 2015-12-01 | Electric cleaner servicing unit and flue gas dust collecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876056.8A CN105498974B (en) | 2015-12-01 | 2015-12-01 | Electric cleaner servicing unit and flue gas dust collecting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105498974A CN105498974A (en) | 2016-04-20 |
| CN105498974B true CN105498974B (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510876056.8A Active CN105498974B (en) | 2015-12-01 | 2015-12-01 | Electric cleaner servicing unit and flue gas dust collecting system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821657B (en) * | 2019-03-12 | 2024-03-22 | 华南理工大学 | Purging device for insulator chamber of electric dust collector of coal-fired power plant |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES381987A1 (en) * | 1969-08-29 | 1973-04-16 | Krupp Gmbh | Electrofilter insulator without damaging dust deposits |
| CN2801291Y (en) * | 2005-03-18 | 2006-08-02 | 西安重型机械研究所 | Insulating device of high efficiency electric dust collector |
| CN201006482Y (en) * | 2007-03-09 | 2008-01-16 | 广东省大宝山矿业有限公司 | Hot air purging apparatus |
| JP5385114B2 (en) * | 2009-12-14 | 2014-01-08 | バブコック日立株式会社 | Combustion exhaust gas mercury removal method and combustion exhaust gas purification device. |
| CN101749722B (en) * | 2010-01-13 | 2011-08-31 | 东南大学 | Device and a method for jointly and cooperatively removing various pollutants of fume in coal-fired boiler |
| CN202021013U (en) * | 2011-03-14 | 2011-11-02 | 无锡华光锅炉股份有限公司 | Dedusting and denitration system of coal-fired flue gas of thermal power plant |
| CN102225365B (en) * | 2011-04-27 | 2013-08-14 | 福建龙净环保股份有限公司 | System and method for modulating flue gas with sulfur trioxide |
| CN203379994U (en) * | 2013-07-31 | 2014-01-08 | 浙江菲达环保科技股份有限公司 | Low-temperature electric precipitator of integrating flue gas waste heat recovery |
| CN105091633A (en) * | 2015-07-17 | 2015-11-25 | 中国重型机械研究院股份公司 | Flue heat exchange device for hot-air sealing of insulation piece incubators of electric precipitator |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20160811 Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Applicant after: SDIC QINZHOU ELECTRIC POWER CO., LTD. Applicant after: Guangxi laurel Energy Development Investment Co., Ltd. Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant before: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute |
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