CN2548110Y - Noval dust-blowing device for revolving-type air preheater of boiler - Google Patents
Noval dust-blowing device for revolving-type air preheater of boiler Download PDFInfo
- Publication number
- CN2548110Y CN2548110Y CN02267505U CN02267505U CN2548110Y CN 2548110 Y CN2548110 Y CN 2548110Y CN 02267505 U CN02267505 U CN 02267505U CN 02267505 U CN02267505 U CN 02267505U CN 2548110 Y CN2548110 Y CN 2548110Y
- Authority
- CN
- China
- Prior art keywords
- shock wave
- air preheater
- emitter
- boiler
- takes place
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G7/00—Cleaning by vibration or pressure waves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G7/00—Cleaning by vibration or pressure waves
- F28G7/005—Cleaning by vibration or pressure waves by explosions or detonations; by pressure waves generated by combustion processes
Abstract
A boiler rotary type air preheater novel soot blowing device belongs to the cleaning technology field of the outer surface of an extra exchanger, which consists of a control device, a gas inlet device, an ignition device, a layer distribution device, a flame duct, a distribution tube, and a shock wave generating and transmitting device. The gas inlet device, the ignition device, and the layer distribution device are connected via pipes. One end of the flame duct is connected with the layer distribution device, and the other end is connected with the distribution tube which is connected with the shock wave generating and transmitting device. The shock wave generating and transmitting device is arranged under the air preheater. The gas inlet device, the ignition device, and the layer distribution device are respectively connected with the control device.
Description
(1) technical field
The utility model relates to a kind of boiler rotary regenerative air preheater soot blower, belongs to the cleaning technique field of heat exchanger outer surface.
(2) background technology
The boiler rotary regenerative air preheater is last heat-exchanger rig of boiler tail, and its effect is to make burning more abundant, to improve the thermal efficiency of boiler.Preheater is to use the sheet metal manufacturing, is formed by stacking by the location-plate of corrugated sheet and complicated wave form, and very little slit is arranged between the corrugated sheet, and the height of revolving rotor generally about 2 meters, is made up of 3-4 layer heat transfer element.Because contain a large amount of dusts in the flue gas, these dusts very easily stick on the corrugated sheet surface of heat transfer element,, blow off as untimely, to reduce the heat transfer efficiency of heat transfer element, simultaneously, will increase the resistance that flue gas, air pass through, when dust stratification is serious, heat transfer element is stopped up, cause blowing out.
The method of removing air preheater heat transfer element dust stratification at present is to purge with high temperature and high pressure steam, but there is serious defective in this method: one, during steam soot blowing, spirt water very easily, the water and the dust stratification that are sprayed onto heat transfer element are mixed into very firm grey piece, very difficult the removal can make the corrugated sheet slit stop up; Two, pressure is not enough to blow through high 2 meters, the very little heat transfer element in slit at the steam of 1.6-1.8Mpa, therefore blows grey poor effect.
(3) summary of the invention
At the deficiencies in the prior art, the utility model provide a kind of rational in infrastructure, easy to manufacture, easy to operate, blow the respond well novel soot blower of boiler rotary regenerative air preheater of ash.
The novel soot blower of a kind of boiler rotary regenerative air preheater, form by control device, inlet duct, igniter, layer distributor, flame conduit, distributing pipe, shock wave generation and emitter, inlet duct, igniter and layer distributor are connected by pipeline successively, flame conduit one end is connected with layer distributor, the other end is connected with distributing pipe, distributing pipe takes place to be connected with emitter with shock wave, shock wave takes place and emitter is positioned at the air preheater below, and inlet duct, igniter, layer distributor are connected with control device respectively.
Shock wave takes place and emitter is provided with anti-fall grey mechanism, and anti-fall grey mechanism is connected with control device.
During use, under the control of control device, the fuel gas of acetylene gas and air amalgamation certainty ratio, by the igniter ignited flammable gas, violent detonation takes place, flame passes to shock wave in moment by layer distributor, flame conduit, distributing pipe and takes place and emitter, and shock wave takes place and emitter produces a kind of stable shock wave, and is transmitted on the heat transfer element of air preheater.Because the spread speed of shock wave is fast, pressure peak is high, short to the action time of heat transfer element, and have good reflection, refraction and transmission performance, make what shock wave can act on whole air preheater
Heat transfer element, thus blow the dust stratification that adheres on the heat transfer element off.The utlity model has rational in infrastructure, easy to manufacture, easy to operate, blow the respond well characteristics of ash.
(4) description of drawings
Accompanying drawing is the utility model structural representation.
Wherein, 1, control device, 2, inlet duct, 3, igniter, 4, layer distributor, 5, the flame conduit, 6, distributing pipe, 7, shock wave takes place and emitter, 8, air preheater, 9, anti-fall grey mechanism driving device, 10, anti-fall grey mechanism driving shaft.
(5) specific embodiment
Embodiment: structure of the present utility model as shown in drawings.Form by control device 1, inlet duct 2, igniter 3, layer distributor 4, flame conduit 5, distributing pipe 6, shock wave generation and emitter 7, inlet duct 2, igniter 3 and layer distributor 4 are connected by pipeline successively, one end of flame conduit 5 is connected with layer distributor 4, the other end is connected with distributing pipe 6, distributing pipe 6 takes place to be connected with emitter 7 with shock wave, shock wave takes place and emitter 7 is positioned at air preheater 8 belows, and inlet duct 2, igniter 3, layer distributor 4 are connected with control device 1 respectively.
Claims (2)
1, the novel soot blower of a kind of boiler rotary regenerative air preheater, it is characterized in that, by control device, inlet duct, igniter, layer distributor, the flame conduit, distributing pipe, shock wave takes place and emitter is formed, inlet duct, igniter is connected by pipeline successively with layer distributor, flame conduit one end is connected with layer distributor, the other end is connected with distributing pipe, distributing pipe takes place to be connected with emitter with shock wave, shock wave takes place and emitter is positioned at air preheater below, inlet duct, igniter, layer distributor is connected with control device respectively.
2, the novel soot blower of boiler rotary preheater as claimed in claim 1 is characterized in that, described shock wave takes place and emitter is provided with anti-fall grey mechanism, and anti-fall grey mechanism is connected with control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02267505U CN2548110Y (en) | 2002-06-06 | 2002-06-06 | Noval dust-blowing device for revolving-type air preheater of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02267505U CN2548110Y (en) | 2002-06-06 | 2002-06-06 | Noval dust-blowing device for revolving-type air preheater of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2548110Y true CN2548110Y (en) | 2003-04-30 |
Family
ID=33733090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02267505U Expired - Fee Related CN2548110Y (en) | 2002-06-06 | 2002-06-06 | Noval dust-blowing device for revolving-type air preheater of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2548110Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042605A (en) * | 2011-01-27 | 2011-05-04 | 章礼道 | Side-to-side thermal deashing method for rotary air preheater |
-
2002
- 2002-06-06 CN CN02267505U patent/CN2548110Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042605A (en) * | 2011-01-27 | 2011-05-04 | 章礼道 | Side-to-side thermal deashing method for rotary air preheater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINAN LUMENG POWER TECHNOLOGY DEVELOPMENT CO., LT Free format text: FORMER OWNER: CHEN NAIJIANG Effective date: 20031219 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20031219 Address after: 250101 room 1016, Qilu Software Park building, Ji'nan hi tech Zone, Shandong Patentee after: Jinan Lumeng Power Science and Technology Development Co. Ltd. Address before: 250011 No. 1, Department of transportation, Lixia District, Shandong, Ji'nan Patentee before: Chen Naijiang |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030430 Termination date: 20100606 |