CN200946811Y - Long soot blowing tube of gas impulse sootblower - Google Patents
Long soot blowing tube of gas impulse sootblower Download PDFInfo
- Publication number
- CN200946811Y CN200946811Y CN 200620077012 CN200620077012U CN200946811Y CN 200946811 Y CN200946811 Y CN 200946811Y CN 200620077012 CN200620077012 CN 200620077012 CN 200620077012 U CN200620077012 U CN 200620077012U CN 200946811 Y CN200946811 Y CN 200946811Y
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- long
- blowing pipe
- blowing
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- mouth
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Abstract
The utility model relates to a long blowing tube of a combustible gas impulse sootblower, which is orderly composed of a mixer of the combustible gas and the air,a lighter,an accelerating tube, and a deflagration box , the shock wave caused by the deflagration is communicated into the long blowing tube,the short blowing tube or the combination of the two blowing tubes, which are arranged in the burner,the utility model is characterized in that the long blowing tube is fixed in the burner through the burner wall and connected externally with the exit of the deflagration box, has the length L of 20mm to 20,000mm and the diameter of 50mm to 500mm is provided with 2-40soot blower holes,each of which has the area of 100mm to 40,000mm<2>.The long blowing tube in the burner has the length of more than 500mm, and is supported by a bracket or a suspension bracket or hung on a pipe rack.
Description
Technical field
The utility model relates to the scavenge unit of firepower electrical plant boiler heating surface dust stratification, particularly a kind of long blowing pipe of combustible gas pulse soot blower.
Background technology
The dust stratification of firepower electrical plant boiler heating surface is the fact of an objective reality, fouling of heating surface not only influences heat exchange, also can make exhaust gas temperature rising, stove imitate reduction, energy consumption increase, and easily produce the dangerous factor of productions such as thermal deviation, leakage, overtemperature damage, regulatory function reduction.
The removing dust stratification measure of more generally adopting at present both at home and abroad is still take steam soot blowing as main, and its adopts superheated steam or the saturated vapor of boiler generation itself, and mounting spray head on mechanical arm stretches into by transmission device and to purge ash disposal in the stove.Because temperature is higher in the stove, mechanical arm is heated yielding in stove, cause stuck in stove may and can not withdraw from, and steam has corrosiveness and steam blowing uneconomical (per ton steam 50-70 unit) to boiler plant, limited the application of steam soot blowing.In recent years, sound wave, infrasound and air bubble have also occurred and blown ash, because the difficult resonance point that finds sound wave and grey molecule and the acoustic wave energy factor such as fast that decays under the different type of furnaces and the different operating mode, air bubble blows ash and is subjected to the source of the gas pressure limit, finite energy, blowing grey effect all can not be satisfactory.
The applicant formerly granted patent ZL032774281 discloses a kind of imflammable gas gas pulse soot blower, mainly be that boiler body is blown ash, comprise the fuel gas and the air mixer that set gradually, igniter, accelerating tube, detonation chamber, the shock wave that detonation produces are communicated to the long blowing pipe that is arranged in the stove, short blowing pipe or the combination of long and short blowing pipe.
Summary of the invention
The purpose of this utility model provides a kind of a kind of structure of long blowing pipe of combustible gas pulse soot blower.
Above-mentioned purpose of the present utility model is achieved in that a kind of long blowing pipe of combustible gas pulse soot blower, comprise the fuel gas and the air mixer that set gradually, igniter, accelerating tube, the detonation chamber, the shock wave that detonation produces is communicated to the long blowing pipe that is arranged in the stove, short blowing pipe or length, short blowing pipe combination, it is characterized in that said long blowing pipe passes furnace wall and is fixed in the stove, the outlet of its external detonation chamber, length L=20-20000mm, diameter phi=50-500mm, have 2-40 ash blowing mouth on each long blowing pipe, each ash blowing mouth area is 100-40000mm
2Long blowing pipe stove planted agent is longer than 500mm, by support or hanger supports or be suspended on the pipe row.Ash blowing mouth is arranged at the front end of long blowing pipe, and perforated area should be greater than 50mm
2, but less than this long blowing pipe sectional area, any combination between the ash blowing mouth that can and arrange with upper/lower positions: along a side of axis; Both sides along axis; Uniform perforate around axis.The front end of long blowing pipe also can seal the spare time, ash blowing mouth can be arranged at long blowpipe with one of upper/lower positions: along a side of axis; Both sides along axis; Uniform perforate around axis.Ash blowing mouth can be circle, ellipse, rhombus, triangle or rectangle, take circular, ellipse, rhombus as good.
The utility model has following advantage and effect: combustible gas is with after air mixes by a certain percentage, after the igniter igniting is ignited, accelerate to enter the detonation chamber by the flame acceleration pipe and form detonation, the shock wave that produces, enter boiler internal and spout discharges by long blowing pipe, needs that can be different according to the scene, the ash blowing mouth that adopts diverse location to arrange purges, shakes the dust stratification on the heating surface (pipe is arranged), reaches the minimizing dust stratification, increases and conduct heat, improve the stove effect.Can solve the dust stratification problem of large-sized boiler and some special device heating surfaces better.
Description of drawings
Fig. 1-4 is respectively several different grey mouth structure schematic diagrames that blow of the long blowing pipe of the utility model.
The specific embodiment
Referring to Fig. 1, the air that fuel gas (as acetylene gas, natural gas, hydrogen etc.) and blower fan are sent is by a certain percentage after mixing chamber mixes, enter detonation chamber 2 through flame accelerating tube 1 through spark arrester, high-energy igniter igniting after igniting, form the shock wave that detonation produces, passing furnace wall 3 by long blowing pipe 4 enters boiler internal and blows ash mouthfuls 9 and front end from a side (or around both sides or axis) and blow ash mouthfuls 10 and discharge, dust stratification on pipe row 6 and the furnace wall heating surface purged, shakes beat, reach and reduce dust stratification, increase and conduct heat, improve the purpose that stove is imitated.Support (or suspension bracket) 5 is connected pipe row last 6 as supporting.The 7th, short blowing pipe, the 8th, sealing.Fig. 2,3,4 is respectively the front end sealing of long blowing pipe, blows that the ash mouth is arranged at the side along axis of long blowpipe, the uniform perforate schematic diagram along the both sides of axis, around axis.
To miniature boiler or be not the through mounting means in two ends, long blowpipe front end can not perforate, and as perforate, effect can be better; To medium-sized or above boiler, dust stratification is more serious, generally is advisable to open 5-20 hole.Long blowpipe lateral opening hole will be facing to the pipe row that be blown ash, can one-sided perforate also can two STHs, but sometimes for the perturbation of current-sharing flue gas, except long blow facing to pipe row STH in, also can be at vertical 90 ° of direction STHs.Long blowpipe perforate will be blown the position of grey heating surface and blow grey purpose decision according to required, and not necessarily facing to heating surface, such as boiler smoke folded angle (incline wall) position, it is exactly parallel with incline wall that the length of arranging blows the hole direction open sometimes.Hole shape is advisable with round mouth and ellipse mouth, and the mouth of reinforcement is arranged.When only having 3-5 to prop up long blowing at medium-sized or above boiler or with horizontal plane, should be round or ellipse hole, purging area can be larger.
Claims (7)
1. the long blowing pipe of a combustible gas pulse soot blower, comprise the fuel gas and the air mixer that set gradually, igniter, accelerating tube, detonation chamber, the shock wave that detonation produces is communicated at least one long blowing pipe that is arranged in the stove, short blowing pipe or the combination of long and short blowing pipe, it is characterized in that said long blowing pipe passes furnace wall and is fixed in the stove, the outlet of its external detonation chamber, length L=20-20000mm, diameter phi=50-500mm, have 2-40 ash blowing mouth on each long blowing pipe, each ash blowing mouth area is 100-40000mm
2
2. the long blowing pipe of combustible gas pulse soot blower according to claim 1 is characterized in that the stove planted agent is longer than 500mm, by support or hanger supports or be suspended on the pipe row.
3. the long blowing pipe of combustible gas pulse soot blower according to claim 1 and 2 is characterized in that ash blowing mouth is arranged at the front end of long blowing pipe, and perforated area should be greater than 50mm
2, but less than this long blowing pipe sectional area, and any combination between the ash blowing mouth that arranges with upper/lower positions: along a side of axis; Both sides along axis; Uniform perforate around axis.
4, the long blowing pipe of combustible gas pulse soot blower according to claim 1 and 2 is characterized in that the front end sealing of long blowing pipe, blow the ash mouth be arranged at long blowpipe with one of upper/lower positions: along a side of axis; Both sides along axis; Uniform perforate around axis.
5, the long blowing pipe of combustible gas pulse soot blower according to claim 1 and 2 is characterized in that blowing the ash mouth and is circle, ellipse, rhombus, triangle or rectangle.
6, the long blowing pipe of combustible gas pulse soot blower according to claim 3 is characterized in that blowing the ash mouth and is circle, ellipse, rhombus, triangle or rectangle.
7, the long blowing pipe of combustible gas pulse soot blower according to claim 4 is characterized in that blowing the ash mouth and is circle, ellipse, rhombus, triangle or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620077012 CN200946811Y (en) | 2006-08-29 | 2006-08-29 | Long soot blowing tube of gas impulse sootblower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620077012 CN200946811Y (en) | 2006-08-29 | 2006-08-29 | Long soot blowing tube of gas impulse sootblower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200946811Y true CN200946811Y (en) | 2007-09-12 |
Family
ID=38733873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620077012 Expired - Lifetime CN200946811Y (en) | 2006-08-29 | 2006-08-29 | Long soot blowing tube of gas impulse sootblower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200946811Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913921A (en) * | 2011-08-01 | 2013-02-06 | 北京中电聚科科技有限公司 | Automatic deashing device for thermal-powered or thermoelectric boilers |
| CN103642531A (en) * | 2013-11-29 | 2014-03-19 | 柳州化工股份有限公司 | Cross blowback device of shell coal gasifier and fabrication method thereof |
| CN104456589A (en) * | 2014-10-22 | 2015-03-25 | 江苏太湖锅炉股份有限公司 | Arrangement structure of shock wave ash blower of vertical waste heat boiler |
| CN112154289A (en) * | 2018-05-21 | 2020-12-29 | 川崎重工业株式会社 | Shock wave type soot blower supporting structure |
-
2006
- 2006-08-29 CN CN 200620077012 patent/CN200946811Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913921A (en) * | 2011-08-01 | 2013-02-06 | 北京中电聚科科技有限公司 | Automatic deashing device for thermal-powered or thermoelectric boilers |
| CN103642531A (en) * | 2013-11-29 | 2014-03-19 | 柳州化工股份有限公司 | Cross blowback device of shell coal gasifier and fabrication method thereof |
| CN104456589A (en) * | 2014-10-22 | 2015-03-25 | 江苏太湖锅炉股份有限公司 | Arrangement structure of shock wave ash blower of vertical waste heat boiler |
| CN112154289A (en) * | 2018-05-21 | 2020-12-29 | 川崎重工业株式会社 | Shock wave type soot blower supporting structure |
| CN112154289B (en) * | 2018-05-21 | 2023-07-04 | 川崎重工业株式会社 | Shock wave type soot blower supporting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070912 |
|
| EXPY | Termination of patent right or utility model |