CN203432460U - Dirt cleaning device of air preheater - Google Patents
Dirt cleaning device of air preheater Download PDFInfo
- Publication number
- CN203432460U CN203432460U CN201320536179.3U CN201320536179U CN203432460U CN 203432460 U CN203432460 U CN 203432460U CN 201320536179 U CN201320536179 U CN 201320536179U CN 203432460 U CN203432460 U CN 203432460U
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- CN
- China
- Prior art keywords
- air preheater
- pipeline
- communicated
- cleaning fluid
- cleaning device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Air Supply (AREA)
- Chimneys And Flues (AREA)
Abstract
The utility model discloses a dirt cleaning device of an air preheater. The dirt cleaning device of the air preheater comprises a cleaning fluid storage primary pot, a discharging opening of the cleaning fluid storage primary pot is communicated with a feeding opening of a cleaning fluid storage secondary pot through a pipeline A, a discharging opening of the cleaning fluid storage secondary pot is sequentially communicated with a one-way valve, a mixer and a waste gas inlet of the air preheater through a pipeline B, and the mixer is simultaneously communicated with a compressed air pump through a pipeline C. Though the structure, according to the dirt cleaning device of the air preheater, a heat exchange device in the air preheater is sprayed, dust absorbed on the heat exchange device is flushed, and a heat exchanger is cleaned and dredged. A flue gas channel in the air preheater is prevented from being plugged, normal production is not affected, and potential safety hazards are avoided.
Description
Technical field
The utility model relates to exhaust-gas treatment field, is specifically related to a kind of dirty cleaning device of knot of air preheater.
Background technology
The flue gas producing in boiler is discharged by flue, owing to containing a large amount of poisonous and harmful elements in flue gas, as nitrogen oxide, so must process through poisonous and harmful element before fume emission enters atmosphere.Flue gas after processing is because temperature is higher, and directly discharge not only can cause thermal pollution to environment, and wastes energy, and therefore, generally all flue gas after processing is carried out to heat exchange by air preheater, carries out preheating to the air that enters boiler.Flue gas is before carrying out heat exchange, first the nitrogen oxide in flue gas is processed, general is all to process by the nitrogen oxide hybrid reaction in ammonia and flue gas, but still contain a small amount of nitrogen oxide and ammonia in the flue gas after processing, in air preheater, very easily produce the material of grume, stick the vias inner walls face in hot-air preheater, cause flue gas stream amount very little, heat exchange effect is poor, even can make flue gas discharge and affect boiler operatiopn operating mode, it is undesired to cause producing, and produces potential safety hazard.
Summary of the invention
The purpose of this utility model is: overcome the deficiencies in the prior art, a kind of dirty cleaning device of knot of air preheater is provided, can carry out part, segmentation spray to the heat-exchange device of air preheater, heat-exchange device is cleaned and dredged, avoid the exhaust gases passes of air preheater blocked.
Technical solution adopted in the utility model is:
The dirty cleaning device of knot of air preheater, comprise that cleaning fluid stores female tank, the discharging opening that described cleaning fluid stores female tank is communicated with the charging aperture that cleaning fluid stores sub-tank by pipeline A, described cleaning fluid stores sub-tank discharging opening and is communicated with the exhaust gas inlet of check valve, blender and air preheater successively by pipeline B, and described blender is communicated with compressed air pump by pipeline C simultaneously.
The further improvement project of the utility model is, described cleaning fluid stores female pot bottom and is provided with blowoff valve, and pipeline A is provided with valve A.
The utility model further improvement project is that described pipeline B is communicated with the exhaust gas inlet of air preheater by the set nozzle in end.
The utility model further improvement project is that described pipeline B is upper is provided with control valve between blender and nozzle.
The utility model further improvement project is that described pipeline C is provided with valve B.
The utility model further improvement project is, the exhaust gas inlet of described air preheater is communicated with flue gas exhausting waste gas passage, and described flue gas exhausting waste gas passage is provided with waste gas purification apparatus.
The utility model further improvement project is, described nozzle is located at the connected entrance place of flue gas exhausting waste gas passage and air preheater, and nozzle is positioned at the heat-exchange device top of air preheater, and heat-exchange device is sprayed.
The beneficial effects of the utility model are:
The first, the dirty cleaning device of the knot of air preheater of the present utility model, sprays by the heat-exchange device in air preheater, the dirt adsorbing is washed away, to cleaning heat-exchanger and dredging on heat-exchange device.
The second, the dirty cleaning device of the knot of air preheater of the present utility model, can effectively prevent that the exhaust gases passes of air preheater is blocked, stops potential safety hazard, guarantees normally to produce.
accompanying drawing explanation:
Fig. 1 is the utility model structural representation.
the specific embodiment:
As shown in Figure 1, the utility model comprises that cleaning fluid stores female tank 1, also comprises the air preheater 6 being communicated with by flue gas exhausting waste gas passage 8 with purifier 18; The discharging opening that described cleaning fluid stores female tank 1 is communicated with the charging aperture that cleaning fluid stores sub-tank 2 by pipeline A11, described cleaning fluid stores sub-tank 2 discharging openings and is communicated with the waste gas outlet of check valve 13, blender 4 and flue gas exhausting waste gas passage 8 successively by pipeline B7, and described blender 4 is communicated with compressed air pump 3 by pipeline C14 simultaneously; Described cleaning fluid stores female tank 1 bottom and is provided with blowoff valve 17, and pipeline A11 is provided with valve A12; The liquid outlet of described pipeline B7 stretches into after the waste gas outlet of flue gas exhausting waste gas passage 8, be communicated with two shower nozzles 5, described two shower nozzles 5 are respectively A shower nozzle and B shower nozzle, and described A shower nozzle and B shower nozzle lay respectively at A exhaust gas inlet and the B exhaust gas inlet top of air preheater 6; Described pipeline B7 is upper is provided with control valve 16 between blender 4 and air preheater 6; Described pipeline C14 is provided with valve B15, between valve B15 and blender 4, is provided with Pressure gauge; The exhaust gas inlet of described air preheater 6 is communicated with flue gas exhausting waste gas passage 8, and described flue gas exhausting waste gas passage 8 is provided with waste gas purification apparatus 18; Described nozzle 5 is located at the connected entrance place of flue gas exhausting waste gas passage 8 and air preheater 6, and nozzle 5 is positioned at heat-exchange device 9 tops of air preheater 6, and heat-exchange device 9 is sprayed.
Claims (5)
1. the dirty cleaning device of the knot of air preheater, is characterized in that: comprise that cleaning fluid stores female tank (1), also comprise the air preheater (6) being communicated with by flue gas exhausting waste gas passage (8) with purifier (18); Described cleaning fluid stores the discharging opening of female tank (1) by pipeline A(11) charging aperture that stores sub-tank (2) with cleaning fluid is communicated with, described cleaning fluid stores sub-tank (2) discharging opening by pipeline B(7) be communicated with the waste gas outlet of check valve (13), blender (4) and flue gas exhausting waste gas passage (8) successively, described blender (4) is simultaneously by pipeline C(14) be communicated with compressed air pump (3).
2. the dirty cleaning device of the knot of air preheater as claimed in claim 1, is characterized in that: described cleaning fluid stores female tank (1) bottom and is provided with blowoff valve (17), pipeline A(11) be provided with valve A(12).
3. the dirty cleaning device of the knot of air preheater as claimed in claim 1, it is characterized in that: liquid outlet described pipeline B(7) stretches into after the waste gas outlet of flue gas exhausting waste gas passage (8), be communicated with A shower nozzle and B shower nozzle, described A shower nozzle and B shower nozzle lay respectively at A exhaust gas inlet and the B exhaust gas inlet top of air preheater (6).
4. the dirty cleaning device of the knot of the air preheater as described in claim 1 or 3, is characterized in that: described pipeline B(7), be positioned between blender (4) and air preheater (6) and be provided with control valve (16).
5. the dirty cleaning device of the knot of air preheater as claimed in claim 1, is characterized in that: described pipeline C(14) be provided with valve B(15), at valve B(15) and blender (4) between be provided with Pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536179.3U CN203432460U (en) | 2013-08-30 | 2013-08-30 | Dirt cleaning device of air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536179.3U CN203432460U (en) | 2013-08-30 | 2013-08-30 | Dirt cleaning device of air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203432460U true CN203432460U (en) | 2014-02-12 |
Family
ID=50061493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320536179.3U Expired - Fee Related CN203432460U (en) | 2013-08-30 | 2013-08-30 | Dirt cleaning device of air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203432460U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338704A (en) * | 2014-09-16 | 2015-02-11 | 国家电网公司 | Method and device for cleaning air preheater of coal-fired power plant boiler SCR (selective catalytic reduction) denitration system online |
| CN110864583A (en) * | 2019-09-20 | 2020-03-06 | 润电能源科学技术有限公司 | Blockage treatment method for air preheater and related device |
-
2013
- 2013-08-30 CN CN201320536179.3U patent/CN203432460U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338704A (en) * | 2014-09-16 | 2015-02-11 | 国家电网公司 | Method and device for cleaning air preheater of coal-fired power plant boiler SCR (selective catalytic reduction) denitration system online |
| CN110864583A (en) * | 2019-09-20 | 2020-03-06 | 润电能源科学技术有限公司 | Blockage treatment method for air preheater and related device |
| CN110864583B (en) * | 2019-09-20 | 2021-07-27 | 润电能源科学技术有限公司 | Blockage treatment method for air preheater and related device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20170830 |