CN108036341A - A kind of boiler flue soot blower system and ash-blowing method - Google Patents
A kind of boiler flue soot blower system and ash-blowing method Download PDFInfo
- Publication number
- CN108036341A CN108036341A CN201711414336.2A CN201711414336A CN108036341A CN 108036341 A CN108036341 A CN 108036341A CN 201711414336 A CN201711414336 A CN 201711414336A CN 108036341 A CN108036341 A CN 108036341A
- Authority
- CN
- China
- Prior art keywords
- soot
- blast cap
- blowing
- soot blower
- blower system
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a kind of boiler flue soot blower system and ash-blowing method,Wherein soot blower includes being arranged in horizontal flue bottom interior wall along two groups of soot blowers of the flue width center line symmetrical setting,The soot blower includes some groups of soot blowing components arranged along flue gas flow direction,The soot blowing component includes the two rows of soot blowing blast caps (5) being staggered,Soot blowing blast cap (5) is often arranged to arrange along the horizontal flue width,The two rows soot blowing blast cap (5) is connected to lateral (8) through air inlet pipe (5) respectively,All laterals (8) are connected to main pipeline (9),The main pipeline (9) is connected to compression gas suppling device,The lateral (8) is equipped with solenoid valve (10),Control device connection solenoid valve (10) and the opening and closing that the lateral (8) is controlled by solenoid valve (10).Boiler flue soot blower system provided by the invention and ash-blowing method, can solve the problems, such as dust stratification in horizontal flue.
Description
Technical field
The present invention relates to flue soot blowing technical field, more particularly to a kind of boiler flue soot blower system and ash-blowing method.
Background technology
Dust stratification serious situation at coal-burning boiler horizontal flue furnace arch, furnace nose, serious dust stratification not only reduce flue gas and heat exchange
Heat-transfer surface between device, reduces the heat transfer effect of heat exchanger, while changes flue gas flow field.
For coal-burning boiler dust deposit in flue serious situation, occur many solution methods, such as Publication No. both at home and abroad
In the Chinese patent of CN104180379A, disclose a kind of ash-blowing method and device for Π type boiler horizontal gas passes, its by
Temp measuring system, control module and soot blower system composition, temp measuring system include being arranged on the first hygrosensor on walling of flue with
Second temperature detector, soot blower system include air supply pipe, the solenoid valve being arranged on air supply pipe and are connected and set with air supply pipe
Blast cap on flue bottom wall, blast cap are uniformly distributed；First hygrosensor and second temperature detector link control module, control
Molding block connects solenoid valve.The soot blower is to detect the dust stratification degree of heat-transfer surface by hygrosensor, so as to control
Soot blower is automatically performed deashing work.In fact, combined influence of the heat exchange temperature by several factors, hygrosensor pass through
The temperature of heat exchanger is detected, can not reflect real heat exchanger dust stratification situation.
In the Chinese patent of Publication No. CN104696975A, a kind of steam blast cap soot blower system and method are disclosed, should
Steam blast cap soot blower system includes：Purge steam pipe, steam blast cap nozzle, steam main pipe and fin；Partly purge steam pipe edge
Furnace chamber width is arranged in boiler furnace arch, furnace nose region, and remainder is arranged in boiler horizontal gas pass area along furnace chamber width
Domain；Steam blast cap nozzle is hollow structure, and multiple steam blast cap nozzles, multiple steam are fixedly mounted on each pipe that purges steam
Blast cap nozzle is each passed through fin and purges steam installed in same root on pipe；The more pipes that purge steam connect the one of steam main pipe
End, the other end of steam main pipe connect auxiliary vapour header, and the superheated steam of the auxiliary vapour header pipe that purges steam successively to every is blown
Sweep, the jetted hole of the steam blast cap nozzle of the every pipe that purges steam sprays superheated steam, by boiler furnace arch, furnace nose or horizontal flue
Dust stratification is secondary to be raised, and the flowing flue gas by passing through carries away the dust stratification.The present invention is with complete by furnace arch, furnace nose and horizontal flue
The dust stratification of portion's scope is removed.The patent can effectively solve furnace arch, furnace nose region using steam blast cap soot blowing and the dust stratification of horizontal flue is asked
Topic, but it uses steam as sootblowing dielectric, in fact, many power plant do not have unnecessary steam and can be used for soot blowing, it is right
In power plant steam surplus deficiency, and the situation of compressed air surplus abundance, side need to fill using the soot blowing suitable for air soot blowing
Put and ash-blowing method.
The content of the invention
One of the object of the invention is to provide a kind of boiler flue soot blower system, can solve the problems, such as boiler flue dust stratification.
It is a further object of the present invention to provide a kind of boiler flue ash-blowing method.
Based on the above problem, one of technical solution provided by the invention is：
A kind of boiler flue soot blower system, including be arranged in horizontal flue bottom interior wall along the flue length direction
The symmetrically arranged two groups of soot blowers of heart line, the soot blower include some groups of soot blowing components arranged along flue gas flow direction, institute
Two rows of soot blowing blast caps that soot blowing component includes being staggered are stated, often arrange horizontal flue width arrangement described in soot-blowing wind shade,
The two rows soot blowing blast cap is connected to lateral through air inlet pipe respectively, and all laterals are connected to main pipeline, the master
Pipeline is connected to compression gas suppling device, and the lateral is equipped with solenoid valve, and control device connection solenoid valve simultaneously passes through
The opening and closing of lateral described in solenoid valve control.
In some embodiments wherein, the soot blower include along flue gas direction arrangement the first soot blowing component and
Second soot blowing component, the first soot blowing component include the first blast cap group and the second blast cap group, and the second soot blowing component includes
3rd blast cap group and the 4th blast cap group, the first blast cap group blast cap corresponding with the 3rd blast cap group are located in same column,
Second blast cap group blast cap corresponding with the 4th blast cap group is located in same column.
In some embodiments wherein, between the first blast cap group and the 3rd blast cap group, second wind
Spacing between cap group and the 4th blast cap group is 800~1000mm；The first blast cap group and the second blast cap group it
Between, the spacing between the 3rd blast cap group and the 4th blast cap group be 500~600mm.
In some embodiments wherein, the soot blowing blast cap is arranged between two neighboring water screen tube, described to blow
Grey blast cap is connected to the air inlet pipe through adapter, the adapter stretched out from the fin between two water screen tubes and with the fin
It is tightly connected.
It is equipped with some embodiments wherein, between the adapter and the fin and strengthens otic placode.
In some embodiments wherein, the soot blowing blast cap is equipped with two nozzles, and described two nozzles difference position
In in the positive and negative direction in flow of flue gas direction.
In some embodiments wherein, abrasionproof is arranged with the pipeline section of soot-blowing wind cap on the water screen tube
Set.
In some embodiments wherein, the lateral is equipped with hand sluice valve.
In some embodiments wherein, pressure gauge is additionally provided with the lateral.
Based on the above problem, another technical solution provided by the invention is：
A kind of ash-blowing method of boiler flue soot blower system, using interval soot-blowing mode, soot blower system is every 3-3.5h works
Make once, after soot blower system is started to work, purge one group of soot blowing component in soot blower every time, blowing time 1min, two
Soot blowing is at intervals of 5min between group soot blower.
Compared with prior art, it is an advantage of the invention that：
Technical solution using the present invention, carries out soot blowing to boiler flue using multigroup soot blowing blast cap, can expand purging
Scope, avoids purging dead angle, can effectively solve the problems, such as horizontal flue dust stratification；The soot blower system is simple in structure, easy to operate,
Soot blowing is efficient.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, drawings in the following description are only some embodiments of the present invention, for the common skill in this area
For art personnel, without creative efforts, other attached drawings can also be obtained according to these attached drawings.
A kind of structure diagram of boiler flue soot blower system embodiment of Fig. 1 present invention；
Fig. 2 is the structure diagram of soot blowing blast cap in the embodiment of the present invention；
Wherein：
1st, the first blast cap group；
2nd, the second blast cap group；
3rd, the 3rd blast cap group；
4th, the 4th blast cap group；
5th, soot blowing blast cap；5-1, blast cap body；5-2, blast cap lid；5-3, nozzle；
6th, water screen tube；
7th, air inlet pipe；
8th, lateral；
9th, main pipeline；
10th, solenoid valve；
11st, hand sluice valve；
12nd, pressure gauge；
13rd, wearing bush；
14th, fin；
15th, otic placode is strengthened；
16th, take over.
Embodiment
Such scheme is described further below in conjunction with specific embodiment.It is to be understood that these embodiments are to be used to illustrate
The present invention and be not limited to limit the scope of the invention.The implementation condition used in embodiment can be done according to the condition of specific producer
Further adjustment, the implementation condition being not specified is usually the condition in normal experiment.
Referring to Fig. 1, for the structure diagram of the embodiment of the present invention, there is provided a kind of boiler flue soot blower system, including set
Include edge along two groups of soot blowers of flue length direction center line symmetrical setting, soot blower in horizontal flue bottom interior wall
The the first soot blowing component and the second soot blowing component of flue gas flow direction arrangement, the first soot blowing component include the first blast cap group of interlaced arrangement
1 and the second blast cap group 2, the second soot blowing component include the 3rd blast cap group 3 and the 4th blast cap group 4 of interlaced arrangement, the first blast cap group
1st, the second blast cap group 2, the 3rd blast cap group 3 and the 4th blast cap group 4 along horizontal flue width arrange, and they respectively pass through into
Tracheae 7 is connected to corresponding lateral 8, and all laterals 8 are connected to main pipeline 9, and main pipeline 9 is connected to compressed gas
Feeding mechanism, is equipped with solenoid valve 10 on lateral 8, and control device is connected to solenoid valve 10 and can control by solenoid valve 10
The opening and closing of lateral 8.Connection relation between compression gas suppling device, control device and solenoid valve 10 is existing skill
Art, the present invention repeat no more.
It should be understood that as needed, every group of soot blower can set more multigroup soot blowing component, the present invention is not done here
Limitation.
In this example, the first blast cap group 1 is located in same column with 3 corresponding blast cap of the 3rd blast cap group, the second blast cap group 2 and
Four blast cap groups, 4 corresponding blast cap is located in same column, i.e., two blast caps are disposed with each row.
Wherein, the spacing between the first blast cap group 1 and the 3rd blast cap group 3, between the second blast cap group 2 and the 4th blast cap group 4
It is preferably 1000mm for 800~1000mm；Between first blast cap group 1 and the second blast cap group 2, the 3rd blast cap group 3 and the 4th
Spacing between blast cap group 4 is 500~600mm, is preferably 600mm.
Referring to Fig. 2, soot blowing blast cap 5 is arranged between two neighboring water screen tube 6, and soot blowing blast cap 5 includes blast cap body 5-
1st, the nozzle 5-3 for being located at the blast cap lid of blast cap body 5-2 and being arranged on blast cap body 5-1, soot blowing blast cap 5 is through adapter 16
Air inlet pipe 7 is connected to, is taken over and is stretched out from the fin 14 between two water screen tubes 6 and be tightly connected with fin 14.
In order to avoid soot blowing blast cap 5 is to the blow loss of water screen tube 6, on water screen tube 6 on the pipeline section of soot-blowing wind cap 5
It is arranged with wearing bush 13.
In order to improve the stability that soot blowing blast cap 5 is connected with fin 14, it is equipped between adapter 16 and fin 14 and strengthens ear
Plate 15.
In this example, soot blowing blast cap 5 is equipped with two nozzle 5-3, they are located at the positive and negative direction in flow of flue gas direction respectively
On, i.e., the airflow direction that two nozzle 5-3 spray is respectively on the both forward and reverse directions in flow of flue gas direction, it can be achieved that compressed air
Two-way purging, increase purging scope.
In order to further optimize the implementation result of the present invention, hand sluice valve 11 is equipped with lateral 8, works as solenoid valve
10 when can not work normally, and manually gate valve 11 closes lateral 8.
For the ease of the atmospheric pressure on detection branches pipeline 8, pressure gauge 12 is additionally provided with lateral 8.
Use the ash-blowing method of above-mentioned soot blower system for：Soot blowing, soot blowing are carried out to horizontal flue using interval soot-blowing mode
System works once every 3~3.5h, after soot blower system is started to work, purges one group of soot blowing component in soot blower every time,
Blowing time is 1min, and for the soot blowing before two groups of soot blowers at intervals of 5min, the time of soot blower system work once is 9min.
Soot blowing is carried out to flue successively by four groups of soot blowing components, compressed air disturbance can be strengthened, purging dead angle is avoided, solves horizontal cigarette
The problem of road dust stratification.
The foregoing examples are merely illustrative of the technical concept and features of the invention, its object is to allow the person skilled in the art to be
Present disclosure can be understood and implemented according to this, it is not intended to limit the scope of the present invention.It is all smart according to the present invention
The equivalent transformation or modification that refreshing essence is done, should be covered by the protection scope of the present invention.
Claims (10)
- A kind of 1. boiler flue soot blower system, it is characterised in that：Including being arranged in horizontal flue bottom interior wall along the flue Two groups of soot blowers of length direction center line symmetrical setting, the soot blower include blowing along some groups of flue gas flow direction arrangement Grey component, the soot blowing component include the two rows of soot blowing blast caps (5) being staggered, and often arrange soot blowing blast cap (5) along the horizontal cigarette Road width arrangement, the two rows soot blowing blast cap (5) are connected to lateral (8), all branches through air inlet pipe (5) respectively Pipeline (8) is connected to main pipeline (9), and the main pipeline (9) is connected to compression gas suppling device, on the lateral (8) Equipped with solenoid valve (10), control device connection solenoid valve (10) simultaneously controls opening for lateral (8) by solenoid valve (10) Close.
- 2. boiler flue soot blower system according to claim 1, it is characterised in that：The soot blower is included along flue gas side To the first soot blowing component and the second soot blowing component of arrangement, the first soot blowing component includes the first blast cap group (1) and the second wind Cap group (2), the second soot blowing component include the 3rd blast cap group (3) and the 4th blast cap group (4), the first blast cap group (1) with The corresponding soot blowing blast cap (5) of the 3rd blast cap group (3) is located in same column, the second blast cap group (2) and the 4th wind The corresponding soot blowing blast cap (5) of cap group (4) is located in same column.
- 3. boiler flue soot blower system according to claim 2, it is characterised in that：The first blast cap group (1) with it is described Spacing between 3rd blast cap group (3), between the second blast cap group (2) and the 4th blast cap group (4) for 800~ 1000mm；Between the first blast cap group (1) and the second blast cap group (2), the 3rd blast cap group (3) and the 4th wind Spacing between cap group (4) is 500~600mm.
- 4. boiler flue soot blower system according to claim 2, it is characterised in that：The soot blowing blast cap (5) is arranged on phase Between adjacent two water screen tubes (6), the soot blowing blast cap (5) is connected to the air inlet pipe (7), the adapter through taking over (16) (16) stretch out from the fin (14) between two water screen tubes (6) and be tightly connected with the fin (14).
- 5. boiler flue soot blower system according to claim 4, it is characterised in that：The adapter (16) and the fin (14) it is equipped between and strengthens otic placode (15).
- 6. boiler flue soot blower system according to claim 4, it is characterised in that：The soot blowing blast cap (5) is equipped with two Nozzle (5-3), and described two nozzles (5-3) are located in the positive and negative direction in flow of flue gas direction respectively.
- 7. boiler flue soot blower system according to claim 4, it is characterised in that：It is located on the water screen tube (6) and blows Wearing bush (13) is arranged with the pipeline section of grey blast cap (5).
- 8. boiler flue soot blower system according to claim 1, it is characterised in that：The lateral (8) is equipped with hand Dynamic gate valve (11).
- 9. boiler flue soot blower system according to claim 1, it is characterised in that：It is additionally provided with the lateral (8) Pressure gauge (12).
- 10. according to the ash-blowing method of claim 1 to 9 any one of them boiler flue soot blower system, it is characterised in that：Using Interval soot-blowing mode, soot blower system work once every 3~3.5h, after soot blower system is started to work, purge soot blower every time In one group of soot blowing component, blowing time 1min, soot blowing is at intervals of 5min between two groups of soot blowers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711414336.2A CN108036341A (en) | 2017-12-22 | 2017-12-22 | A kind of boiler flue soot blower system and ash-blowing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711414336.2A CN108036341A (en) | 2017-12-22 | 2017-12-22 | A kind of boiler flue soot blower system and ash-blowing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108036341A true CN108036341A (en) | 2018-05-15 |
Family
ID=62100723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711414336.2A Pending CN108036341A (en) | 2017-12-22 | 2017-12-22 | A kind of boiler flue soot blower system and ash-blowing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108036341A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679636A (en) * | 2018-06-20 | 2018-10-19 | 中国华电科工集团有限公司 | A kind of soot cleaning system and operation method for thermal power plant's low-level (stack-gas) economizer |
| CN109442445A (en) * | 2018-10-16 | 2019-03-08 | 华电电力科学研究院有限公司 | A kind of novel soot blower system and its working method for station boiler horizontal flue |
| CN110594767A (en) * | 2019-09-30 | 2019-12-20 | 中节能工业节能有限公司华坪分公司 | Gas energy sonic boom shock wave soot blower |
| WO2020204122A1 (en) * | 2019-04-05 | 2020-10-08 | 三菱日立パワーシステムズ株式会社 | Boiler |
| CN111822455A (en) * | 2020-08-27 | 2020-10-27 | 山东国舜建设集团有限公司 | Device for preventing dust accumulation of dust accumulation points of flue and flue |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676617A (en) * | 2015-03-17 | 2015-06-03 | 安徽金鼎锅炉股份有限公司 | Ash deposition resistance structure for incineration boiler flue |
| EP3101340A1 (en) * | 2015-06-01 | 2016-12-07 | Alfa Laval Corporate AB | A heat exchanger |
| CN206419978U (en) * | 2016-12-09 | 2017-08-18 | 浙江旺能环保股份有限公司 | A kind of accumulatingdust air preheater for waste incinerator |
| CN107143867A (en) * | 2017-06-28 | 2017-09-08 | 杭州华电能源工程有限公司 | A kind of soot blower system and ash-blowing method for boiler horizontal gas pass |
| CN207778472U (en) * | 2017-12-22 | 2018-08-28 | 上海华电电力发展有限公司 | A kind of boiler flue soot blower system |
-
2017
- 2017-12-22 CN CN201711414336.2A patent/CN108036341A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676617A (en) * | 2015-03-17 | 2015-06-03 | 安徽金鼎锅炉股份有限公司 | Ash deposition resistance structure for incineration boiler flue |
| EP3101340A1 (en) * | 2015-06-01 | 2016-12-07 | Alfa Laval Corporate AB | A heat exchanger |
| CN206419978U (en) * | 2016-12-09 | 2017-08-18 | 浙江旺能环保股份有限公司 | A kind of accumulatingdust air preheater for waste incinerator |
| CN107143867A (en) * | 2017-06-28 | 2017-09-08 | 杭州华电能源工程有限公司 | A kind of soot blower system and ash-blowing method for boiler horizontal gas pass |
| CN207778472U (en) * | 2017-12-22 | 2018-08-28 | 上海华电电力发展有限公司 | A kind of boiler flue soot blower system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679636A (en) * | 2018-06-20 | 2018-10-19 | 中国华电科工集团有限公司 | A kind of soot cleaning system and operation method for thermal power plant's low-level (stack-gas) economizer |
| CN109442445A (en) * | 2018-10-16 | 2019-03-08 | 华电电力科学研究院有限公司 | A kind of novel soot blower system and its working method for station boiler horizontal flue |
| WO2020204122A1 (en) * | 2019-04-05 | 2020-10-08 | 三菱日立パワーシステムズ株式会社 | Boiler |
| CN110594767A (en) * | 2019-09-30 | 2019-12-20 | 中节能工业节能有限公司华坪分公司 | Gas energy sonic boom shock wave soot blower |
| CN111822455A (en) * | 2020-08-27 | 2020-10-27 | 山东国舜建设集团有限公司 | Device for preventing dust accumulation of dust accumulation points of flue and flue |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108036341A (en) | A kind of boiler flue soot blower system and ash-blowing method | |
| CN207778472U (en) | A kind of boiler flue soot blower system | |
| CN107883388A (en) | A kind of soot blower system and ash-blowing method for π type boiler furnace arch, furnace noses | |
| CN107143867A (en) | A kind of soot blower system and ash-blowing method for boiler horizontal gas pass | |
| CN108800174A (en) | The deashing device and method of novel low low-level (stack-gas) economizer | |
| CN207179641U (en) | A kind of boiler of the adherent wind of side wall | |
| CN105066719B (en) | Waste gas comprehensively utilizes afterheat generating system | |
| CN103968405B (en) | A kind of flue gas heater with defrosting function | |
| CN202195489U (en) | Double pipe cooled soot blower | |
| CN205678688U (en) | A kind of biomass boiler soot blower | |
| CN207006192U (en) | A kind of soot blower system for boiler horizontal gas pass | |
| CN103900410A (en) | Phase-change heat transfer device and heat transfer method thereof | |
| CN212456914U (en) | Eliminate accurate soot blowing system that sweeps blind area | |
| CN103977990A (en) | Method for purging and cleaning spiral tube heat exchanger by using compressed air | |
| CN203810434U (en) | Novel flue gas heater with demisting function | |
| CN207584796U (en) | A kind of waste heat boiler flue partition wall soot cleaning system | |
| CN212178851U (en) | Adherence wind bellows that flute cast was automatic to be swept | |
| CN204513422U (en) | Steam blast cap soot blower system | |
| CN207786164U (en) | The anti-corrosion structure of flue gas injection system | |
| CN208019059U (en) | A kind of SCR denitration real-time blow device online | |
| CN206572501U (en) | A kind of boiler furnace device | |
| CN202675959U (en) | Flue gas waste heat recovery device of setting machine | |
| CN110645586A (en) | Power station boiler whitening device and working method thereof | |
| CN219161106U (en) | Automatic soot blower of low-temperature economizer of power station boiler | |
| CN112611232B (en) | Multi-channel structure for preventing dust deposition of tail flue of industrial pulverized coal furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |