CN104654329A - W flame boiler secondary air bellow soot blower - Google Patents
W flame boiler secondary air bellow soot blower Download PDFInfo
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- CN104654329A CN104654329A CN201410407353.3A CN201410407353A CN104654329A CN 104654329 A CN104654329 A CN 104654329A CN 201410407353 A CN201410407353 A CN 201410407353A CN 104654329 A CN104654329 A CN 104654329A
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- pipe
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- soot blower
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Abstract
The invention discloses a W flame boiler secondary air bellow soot blower. The W flame boiler secondary air bellow soot blower mounted 500 mm to the bottom of an air bellow and comprises a cylindrical tube. One end of the tube is connected to an air bellow system to obtain a soot blowing air source from the air bellow system. The tube is transversely arranged in the air bellow and provided with more than one soot blowing holes. A nozzle is welded to every soot blowing hole. A solenoid valve and a shut-off valve are welded to the rear end portion of the tube. The shut-off valve is mounted at the rear end of the solenoid valve. A time relay for controlling the start and stop of the solenoid valve is mounted on the lower end portion of the solenoid valve. The W flame boiler secondary air bellow soot blower is simple in structure, omits manual operations, can achieve automatic soot blowing by setting the time relay, saves labor costs, omits soot blowing by labors, reduces labor intensity, ensures no soot and the safety of the air bellow and improves the combustion efficiency of a boiler.
Description
Technical field
The present invention relates to a kind of W flame boiler secondary air bellows soot blower.
Background technology
In coal fired thermal power plant boiler, secondary air bellow is indispensable important one-tenth part in combustion system, be by fuel combustion air centralized collection if desired, and uniform distribution is to burner.Along with the progressively development of science and technology, Thermal Power Generation Industry generating set capacity will advance towards Large Copacity, high parameter direction, and its supporting bellows also increase thereupon.From the nineties in last century, under the unified arrangement in national energy portion, introduce W type flame boiler from external.The secondary air bellow that this boiler is corresponding adopts large-sized annular bellows.
Wind in secondary air bellow derives from boiler tail air preheater outlet hot blast, and W type flame boiler air preheater adopts rotary regenerative air preheater usually.Flue gas, by air preheater, transfers heat to air preheater, and air preheater rotates to air side, and release heat adds hot-air, forms hot blast.Owing to containing fly ash granule in flue gas, thinner fly ash granule enters into hot blast with air preheater, is carried into bellows by air channel.Bellows area ratio air channel area is large, and the wind speed that flows in bellows reduces suddenly, and fly ash granule deposits.Along with the unit operation time increases, dust stratification is more and more serious, particularly outstanding bottom secondary air bellow.After being blocked by dust stratification bottom bellows, bellows area reduces, and bottom Secondary Air burner cannot air intake, cause Secondary Air air feed not in time, uneven, coal dust burns degree and is deteriorated in stove, and boiler thermal output reduces.In unit long-term operation, bottom Secondary Air burner is long-term without air cooling, causes this zonal combustion device easily to burn out.At present, for preventing burner to be burned, power plant generally carries out a blowing out defect elimination in half a year, clears up dust stratification bottom secondary air bellow.This cleaning work needs to spend a large amount of human and material resources, financial resources, and easily personal safety accident occurs.
Summary of the invention
It is simple that technical problem to be solved by this invention is to provide a kind of structure, someone is not needed to operate, after only the time relay need being arranged, automatic ash blowing can be realized, save human cost, without the need to manpower deashing, reduce labour intensity, bellows being both without dust stratification, ensure that device security, improve the W flame boiler secondary air bellows soot blower of boiler combustion efficiency.
The present invention is achieved through the following technical solutions: a kind of W flame boiler secondary air bellows soot blower, be included in top 500mm place installation one soot blower bottom bellows, described soot blower comprises the pipe of a cylindrical shape, one end of described pipe connects bellows system, obtain from this bellows system and blow grey source of the gas, described pipe is laterally placed in bellows, pipe offers and more than onely blows grey hole, each blowing on grey hole is welded with a nozzle, the rearward end of described pipe is welded with a magnetic valve and a stop valve, described stop valve is installed on the rear end of magnetic valve, described magnetic valve is provided with the time relay opened and closed for Controlling solenoid valve, the described time relay is installed on the bottom of magnetic valve.
As preferred technical scheme, described pipe is blowing pipe, the seamless steel pipe selecting φ 89 × 4.5 of blowing pipe.
As preferred technical scheme, described nozzle comprises circular jet nozzle and flat nozzle, and described circular jet nozzle length is 80mm, and flat nozzle length is 100mm, described circular jet nozzle and flat nozzle pitch 200mm interlaced arrangement.
As preferred technical scheme, described circular jet nozzle and flat nozzle transpostion interval are arranged in blowing pipe road position of opening, each nozzle and tube axis angle at 45 °, whole pipe and bellows base plate angle at 45 °.
As preferred technical scheme, the head conically shape of described flat nozzle, the air outlet of flat nozzle is straight line shape, the overall cylindrical shape of circular jet nozzle, the diameter on top and the equal diameters of bottom, and the air outlet of circular jet nozzle is circular exhaust vent, its air outlet is greater than the air outlet of flat nozzle.
As preferred technical scheme, put in level between described pipe and bellows bottom surface, the endcapped of pipe, and the end of pipe stretches out in the outside of bellows, blows the inside that grey hole is positioned at bellows.
As preferred technical scheme, described magnetic valve is set in the middle of pipe, for cutting off pipe, is electrically connected between the time relay with magnetic valve, magnetic valve and the time relay one termination power.
The invention has the beneficial effects as follows: structure of the present invention is simple, does not need someone to operate, after only the time relay need being arranged, can automatic ash blowing be realized.Save human cost, without the need to manpower deashing, reduce labour intensity.Bellows being both without dust stratification, ensure that device security, improve boiler combustion efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of soot blower of the present invention;
Fig. 2 is that the present invention blows grey nozzle and pipe connection layout;
Fig. 3 is for blowing grey nozzle, pipe and bellows scheme of installation.
Detailed description of the invention
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this description (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
As shown in Figure 1, a kind of W flame boiler secondary air bellows soot blower of the present invention, be included in top 500mm place installation one soot blower bottom bellows, described soot blower comprises the pipe 2 of a cylindrical shape, one end of described pipe 2 connects bellows system, obtain from this bellows system and blow grey source of the gas, described pipe 2 is laterally placed in bellows 3, pipe 2 offers and more than onely blows grey hole, each blowing on grey hole is welded with a nozzle 1, the rearward end of described pipe 2 is welded with magnetic valve 5 and a stop valve 6, described stop valve 6 is installed on the rear end of magnetic valve 5, described magnetic valve 5 is provided with the time relay 4 opened and closed for Controlling solenoid valve, the described time relay 4 is installed on the bottom of magnetic valve 5.
As preferred embodiment, pipe 2 is blowing pipe, the seamless steel pipe selecting φ 89 × 4.5 of blowing pipe.
As shown in Figures 2 and 3, nozzle 1 comprises circular jet nozzle 15 and flat nozzle 16, and described circular jet nozzle 15 length is 80mm, and flat nozzle 16 length is 100mm, described circular jet nozzle 15 and flat nozzle 16 interval 200mm interlaced arrangement.
Long and short two kind nozzle arranged crosswise can expand blows grey scope, clears up bellows dust stratification layer by layer.
As shown in Figure 3, circular jet nozzle 15 and flat nozzle 16 transpostion interval are arranged in blowing pipe road position of opening, each nozzle and tube axis angle at 45 °, whole pipe and bellows base plate angle at 45 °.
Such layout both can meet the requirement of blowing ash, the ash in bellows can be avoided again oppositely to enter in nozzle on the other hand.
As shown in Figure 3, the head conically shape of flat nozzle 16, the air outlet of flat nozzle 16 is straight line shape, the cylindrical shape of whole 15 body of circular jet nozzle, the diameter on top and the equal diameters of bottom, and the air outlet of circular jet nozzle is circular exhaust vent, its air outlet is greater than the air outlet of flat nozzle.
Put in level between pipe 1 and bellows 3 bottom surface, the endcapped of pipe 2, and the end of pipe 2 stretches out in the outside of bellows 3, blows the inside that grey hole is positioned at bellows.
As shown in Figure 1, magnetic valve is set in the middle of pipe, for cutting off pipe, is electrically connected between the time relay with magnetic valve, magnetic valve and the time relay one termination power.
Utilize original bellows system, above bottom distance bellows, 500mm arranges soot blower.Take out from power plant's compressed air system and blow grey source of the gas, introduce the large bellows of boiler secondary air by the seamless steel pipe of φ 89 × 4.5.Pipe is installed and blows grey nozzle, blow grey nozzle and adopt flat nozzle and circular jet nozzle transpostion interval 200mm to arrange, nozzle length is respectively 100mm and 80mm.
Nozzle and tube axis angle at 45 °, angle at 45 ° with bellows base plate.For controlling compressed air use amount and blowing grey number of times, blowing pipe installs motor-driven valve.It is outside that motor-driven valve is arranged on large bellows, arranges and blow grey interval time, Controlling solenoid valve is opened, closes, and effectively controls to blow grey number of times.In magnetic valve front portion, stop valve is installed, its objective is and facilitate overhaul of the equipments.
The invention has the beneficial effects as follows: structure of the present invention is simple, does not need someone to operate, after only the time relay need being arranged, can automatic ash blowing be realized.Save human cost, without the need to manpower deashing, reduce labour intensity.Bellows being both without dust stratification, ensure that device security, improve boiler combustion efficiency.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any change of expecting without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (7)
1. a W flame boiler secondary air bellows soot blower, it is characterized in that: be included in top 500mm place installation one soot blower bottom bellows, described soot blower comprises the pipe of a cylindrical shape, one end of described pipe connects bellows system, obtain from this bellows system and blow grey source of the gas, described pipe is laterally placed in bellows, pipe offers and more than onely blows grey hole, each blowing on grey hole is welded with a nozzle, the rearward end of described pipe is welded with a magnetic valve and a stop valve, described stop valve is installed on the rear end of magnetic valve, described magnetic valve is provided with the time relay opened and closed for Controlling solenoid valve, the described time relay is installed on the bottom of magnetic valve.
2. W flame boiler secondary air bellows soot blower according to claim 1, is characterized in that: described pipe is blowing pipe, the seamless steel pipe selecting φ 89 × 4.5 of blowing pipe.
3. W flame boiler secondary air bellows soot blower according to claim 1, it is characterized in that: described nozzle comprises circular jet nozzle and flat nozzle, described circular jet nozzle length is 80mm, and flat nozzle length is 100mm, described circular jet nozzle and flat nozzle pitch 200mm interlaced arrangement.
4. W flame boiler secondary air bellows soot blower according to claim 3, it is characterized in that: described circular jet nozzle and flat nozzle transpostion interval are arranged in blowing pipe road position of opening, each nozzle and tube axis angle at 45 °, whole pipe and bellows base plate angle at 45 °.
5. W flame boiler secondary air bellows soot blower according to claim 3, it is characterized in that: the head conically shape of described flat nozzle, the air outlet of flat nozzle is straight line shape, the overall cylindrical shape of circular jet nozzle, the diameter on top and the equal diameters of bottom, and the air outlet of circular jet nozzle is circular exhaust vent, its air outlet is greater than the air outlet of flat nozzle.
6. W flame boiler secondary air bellows soot blower according to claim 1, is characterized in that: put in level between described pipe and bellows bottom surface, the endcapped of pipe, and the end of pipe stretches out in the outside of bellows, blows the inside that grey hole is positioned at bellows.
7. W flame boiler secondary air bellows soot blower according to claim 1, is characterized in that: described magnetic valve is set in the middle of pipe, for cutting off pipe, being electrically connected between the time relay with magnetic valve, magnetic valve and the time relay one termination power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407353.3A CN104654329A (en) | 2014-08-19 | 2014-08-19 | W flame boiler secondary air bellow soot blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407353.3A CN104654329A (en) | 2014-08-19 | 2014-08-19 | W flame boiler secondary air bellow soot blower |
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| Publication Number | Publication Date |
|---|---|
| CN104654329A true CN104654329A (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410407353.3A Pending CN104654329A (en) | 2014-08-19 | 2014-08-19 | W flame boiler secondary air bellow soot blower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834180A (en) * | 2019-11-15 | 2020-02-25 | 无锡华能热能设备有限公司 | Assembling and welding processing technology for boiler pulverized coal burner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591426Y (en) * | 2002-12-10 | 2003-12-10 | 刘增营 | Full-automatic computer dust blower |
| JP2005003266A (en) * | 2003-06-12 | 2005-01-06 | Mitsubishi Heavy Ind Ltd | Stationary type soot blower for coal gasification device |
| CN101535759A (en) * | 2006-11-06 | 2009-09-16 | 煤烟技术股份公司 | A method of rebuilding a sootblowing system of a recovery furnace, a sootblower for a recovery furnace, and a sootblowing system including a plurality of sootblowers |
| CN204268493U (en) * | 2014-08-19 | 2015-04-15 | 北京科电瑞通科技股份有限公司 | A kind of W flame boiler secondary air bellows soot blower |
-
2014
- 2014-08-19 CN CN201410407353.3A patent/CN104654329A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591426Y (en) * | 2002-12-10 | 2003-12-10 | 刘增营 | Full-automatic computer dust blower |
| JP2005003266A (en) * | 2003-06-12 | 2005-01-06 | Mitsubishi Heavy Ind Ltd | Stationary type soot blower for coal gasification device |
| CN101535759A (en) * | 2006-11-06 | 2009-09-16 | 煤烟技术股份公司 | A method of rebuilding a sootblowing system of a recovery furnace, a sootblower for a recovery furnace, and a sootblowing system including a plurality of sootblowers |
| CN204268493U (en) * | 2014-08-19 | 2015-04-15 | 北京科电瑞通科技股份有限公司 | A kind of W flame boiler secondary air bellows soot blower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834180A (en) * | 2019-11-15 | 2020-02-25 | 无锡华能热能设备有限公司 | Assembling and welding processing technology for boiler pulverized coal burner |
| CN110834180B (en) * | 2019-11-15 | 2022-05-13 | 无锡华能热能设备有限公司 | Assembling and welding processing technology for boiler pulverized coal burner |
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Application publication date: 20150527 |