CN203489291U - Soot blower for communicating air channel - Google Patents
Soot blower for communicating air channel Download PDFInfo
- Publication number
- CN203489291U CN203489291U CN201320422741.XU CN201320422741U CN203489291U CN 203489291 U CN203489291 U CN 203489291U CN 201320422741 U CN201320422741 U CN 201320422741U CN 203489291 U CN203489291 U CN 203489291U
- Authority
- CN
- China
- Prior art keywords
- air channel
- air
- unicom
- blowing pipe
- soot blower
- 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
Links
- 239000004071 soot Substances 0.000 title claims abstract description 19
- 238000007664 blowing Methods 0.000 claims abstract description 28
- 239000000428 dust Substances 0.000 claims description 28
- 238000013517 stratification Methods 0.000 claims description 27
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
Images
Classifications
-
- 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)
Abstract
The utility model discloses a soot blower for a communicating air channel, which is used for removing ash deposit in the communicating air channel at the outlet of an air pre-heater, and comprises an air source end, an air feeding pipeline, and a blowing pipe. The air source end is used for generating wind energy for removing the ash deposit. The air feeding pipeline conveys the wind energy generated at the air source end to the blowing pipe. The blowing pipe is disposed in the communicating air channel at the outlet of the air pre-heater for blowing away the ash deposit in the communicating air channel. The soot blower for a communicating air channel is advantageous in that ash deposit in the communicating pipeline can be effectively reduced, and ventilation area in the air channel can be increased; air channel deformation due to too much load generated by excessive ash deposit can be removed, and manpower and time invested due to the ash deposit can be reduced.
Description
Technical field
The utility model relates to boiler draft technical field, particularly a kind of soot blower that can effectively reduce dust stratification, improve air channel draught area.
Background technology
At present, the general draft type adopting of boiler smoke wind system of steam power plant is balanced draft mode, utilize pressure fan positive pressure head to overcome the resistance in circulation of air process, utilize the negative suction head of air-introduced machine to overcome the resistance in the flue gas process of circulation, making furnace outlet is micro-negative pressure, can reduce to leak out and safer.
Refer to Fig. 1, the course of work of existing boiler smoke wind system comprises: pressure fan is sent to two rotary regenerative air preheaters 01 by air, the hot flue gas of boiler sends its heat to the air entering, and hot-air is divided into wind, Secondary Air, a tertiary air and enters the hot blast etc. of pulverized coal preparation system from air preheater outlet 02.One time wind mixes with coal dust at blender place, through duff pipe, enters burner.Secondary Air process secondary air duct, and enter burner hearth by each controllable register, mix and strengthen burning with a wind.Carry the tertiary air of a small amount of coal dust, through tertiary air nozzles, enter hearth combustion.The hot flue gas producing passes to furnace wall cooling, pendant superheater by heat, then through low temperature superheater, high temperature superheater, enters rear vertical shaft and flue, finally enters electric cleaner and desulfurizer, flows to chimney and discharges.
Because the inleakage of Rotary air preheater is large, thereby make air preheater hot blast out carry a large amount of flying dusts.The flying dust carrying in hot blast is comprised of particle of all sizes, is generally all less than 200 μ m, and in the majority with 10-30 μ m.When arriving 19.5 meters of hot blast UNICOM air channels containing grey hot blast, on these small soot particle Bian Hui UNICOM air channels, under deposition, form dust stratification.
According to statistics, when dust stratification situation is comparatively serious, its height can reach every 6 months 500-600mm, has had a strong impact on the safe and stable operation of equipment.Wherein hidden trouble of equipment comprises: (1) UNICOM air channel 03 circulation area is only 1700mm*1700mm, if dust stratification seriously will hinder the unimpeded of air and gas system; (2) weight of dust stratification, by distich ventilating duct 03 mineralization pressure, easily causes 03 distortion of UNICOM air channel, even causes UNICOM air channel 03 to cave in; (3), when serious, the wind speed of the interior dust stratification in UNICOM air channel 03 reduces, can cause coal dust deposition burning in tertiary-air pipe.
In sum, the dust stratification at 03 place, UNICOM air channel of air preheater outlet 02 brings huge hidden trouble of equipment, therefore at 03 place, UNICOM air channel of air preheater outlet 02, install soot blower system additional to reduce dust stratification quantity, just become those skilled in the art's problem demanding prompt solution.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defect of the prior art, and a kind of soot blower of eliminating air preheater outlet UNICOM air channel dust stratification is provided.
For reaching above-mentioned purpose, the utility model provides a kind of UNICOM air channel soot blower, for removing the dust stratification in the UNICOM air channel of air preheater outlet, comprise wind regime end, air supply duct and blowing pipe, described wind regime end is removed the required wind energy of dust stratification in order to produce, the wind energy that described air supply duct produces described wind regime end is delivered to described blowing pipe, and described blowing pipe is positioned at the UNICOM air channel of described air preheater outlet, in order to blow down the dust stratification in described UNICOM air channel.
According to a kind of UNICOM air channel soot blower the utility model proposes, wherein, described blowing pipe downside comprises a plurality of grey holes of blowing, describedly blow grey hole and be divided into two rows, lay respectively at described blowing pipe under center line be the both sides at 15 degree angles, every package draw together symmetrically arranged three pairs totally six blow grey hole, every pair of diameter that blows grey hole is respectively 6mm, 8mm and 10mm, along in mind-set both sides increase progressively distribution; Every row is adjacent, and two spacing of blowing between grey hole are respectively 200mm, 180mm and 150mm, along in the distribution of successively decreasing of mind-set both sides.
According to a kind of UNICOM air channel soot blower the utility model proposes, wherein said air supply duct is provided with gate valve near described wind regime end place.
According to a kind of UNICOM air channel soot blower the utility model proposes, wherein said wind regime end comprises two, is respectively a blower fan.
UNICOM of the present utility model air channel soot blower can effectively reduce dust stratification in unicom pipeline, improves draught area in air channel, eliminates because dust stratification too much produces the air channel distortion that excessive load causes, reduces manpower and the time of because of dust stratification, too much dropping into simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing boiler smoke wind system;
Fig. 2 is installation site of the present utility model schematic diagram;
Fig. 3 is structural representation of the present utility model.
Description of reference numerals: 01-air preheater; The outlet of 02-air preheater; 03-UNICOM air channel; 04-dust stratification; 10-wind regime end; 20-air supply duct; 30-blowing pipe; 40-blows grey hole; 50-gate valve.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, to the technical scheme in the utility model embodiment remove, complete description, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creativity work prerequisite, all belong to the scope of the utility model protection.
Please first consult Fig. 2, soot blower main part of the present utility model is arranged on 03 inside, UNICOM air channel of air preheater outlet 02, make the dust stratification 04 in UNICOM air channel 03 be blown afloat once again formation suspended state, and along with the wind-force in UNICOM air channel 03 is drained, thereby reduce the generation of UNICOM's air channel 03 interior dust stratification 04, guarantee that the quantity of dust stratification 04 maintains in certain safe range.
Fig. 3 is concrete structure schematic diagram of the present utility model.As shown in Figure 3, the utility model comprises wind regime end 10, air supply duct 20 and blowing pipe 30, and wherein wind regime end 10 is removed the required wind energy of dust stratification 04 in order to produce, and during enforcement, wind regime end 10 can comprise two of left and right, to strengthen wind-force, is specifically chosen as blower fan; The wind energy that air supply duct 20 produces described wind regime end 10 is delivered to described blowing pipe 30, and blowing pipe 30 is positioned at the UNICOM air channel 03 of described air preheater outlet 02, in order to blow down the dust stratification in described UNICOM air channel 03.
Particularly, blowing pipe 30 downsides comprise a plurality of grey holes 40 of blowing, describedly blow grey hole 40 and be divided into two rows, lay respectively at described blowing pipe 30 under center line be the both sides (not shown) at 15 degree angles, every package draw together symmetrically arranged three pairs totally six blow grey hole 40, every pair of diameter that blows grey hole 40 is respectively 6mm, 8mm and 10mm, and in edge, mind-set both sides increase progressively distribution; Every row is adjacent, and two spacing of blowing between grey hole 40 are respectively 200mm, 180mm and 150mm, along in the distribution of successively decreasing of mind-set both sides.
In addition, air supply duct 20 also can be provided with gate valve 50 near wind regime end 10 places, can adjust intake according to actual conditions in good time, meets different operating mode needs.
In sum, UNICOM of the present utility model air channel soot blower can effectively reduce dust stratification in unicom pipeline, improve draught area in air channel, eliminate because dust stratification too much produces the air channel distortion that excessive load causes, reduce manpower and the time of because of dust stratification, too much dropping into simultaneously.
To description of the present utility model, be illustrative above; and it is nonrestrictive; those skilled in the art is understood, and can carry out many modifications, variation or equivalence to it, but they all will fall in protection domain of the present utility model in claim within the spirit limiting and scope.
Claims (4)
1.Yi Zhong UNICOM air channel soot blower, for removing the dust stratification in the UNICOM air channel of air preheater outlet, it is characterized in that, comprise wind regime end, air supply duct and blowing pipe, described wind regime end is removed the required wind energy of dust stratification in order to produce, the wind energy that described air supply duct produces described wind regime end is delivered to described blowing pipe, and described blowing pipe is positioned at the UNICOM air channel of described air preheater outlet, in order to blow down the dust stratification in described UNICOM air channel.
2. a kind of UNICOM according to claim 1 air channel soot blower, it is characterized in that, described blowing pipe downside comprises a plurality of grey holes of blowing, describedly blow grey hole and be divided into two rows, lay respectively at described blowing pipe under center line be the both sides at 15 degree angles, every package draw together symmetrically arranged three pairs totally six blow grey hole, every pair of diameter that blows grey hole is respectively 6mm, 8mm and 10mm, along the axial centre of described blowing pipe, to both sides, increases progressively distribution; Every row is adjacent, and two spacing of blowing between grey hole are respectively 200mm, 180mm and 150mm, along the distribution of successively decreasing to both sides of the axial centre of described blowing pipe.
3. a kind of UNICOM according to claim 1 air channel soot blower, is characterized in that, described air supply duct is provided with gate valve near described wind regime end place.
4. a kind of UNICOM according to claim 1 air channel soot blower, is characterized in that, described wind regime end comprises two, is respectively a blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320422741.XU CN203489291U (en) | 2013-07-16 | 2013-07-16 | Soot blower for communicating air channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320422741.XU CN203489291U (en) | 2013-07-16 | 2013-07-16 | Soot blower for communicating air channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203489291U true CN203489291U (en) | 2014-03-19 |
Family
ID=50260121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320422741.XU Expired - Fee Related CN203489291U (en) | 2013-07-16 | 2013-07-16 | Soot blower for communicating air channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203489291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339827A (en) * | 2021-05-31 | 2021-09-03 | 苏州西热节能环保技术有限公司 | Device for preventing dust deposition of secondary layer air box of boiler |
-
2013
- 2013-07-16 CN CN201320422741.XU patent/CN203489291U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339827A (en) * | 2021-05-31 | 2021-09-03 | 苏州西热节能环保技术有限公司 | Device for preventing dust deposition of secondary layer air box of boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |
|
| CX01 | Expiry of patent term | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: Expiration and Termination of 39 Volume 3101 Patent on August 1, 2023 Number: 31-01 Volume: 39 |
|
| CU01 | Correction of utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 |