CN202328200U - Air cap of circulating fluid bed boiler - Google Patents
Air cap of circulating fluid bed boiler Download PDFInfo
- Publication number
- CN202328200U CN202328200U CN2011204567304U CN201120456730U CN202328200U CN 202328200 U CN202328200 U CN 202328200U CN 2011204567304 U CN2011204567304 U CN 2011204567304U CN 201120456730 U CN201120456730 U CN 201120456730U CN 202328200 U CN202328200 U CN 202328200U
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- CN
- China
- Prior art keywords
- air cap
- air
- boiler
- blast cap
- blast
- 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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Abstract
The utility model relates to a boiler air cap, particularly to an air cap of a circulating fluid bed boiler, which aims to solve the problem that the air outlets of the existing boiler air cap are easy to be blocked by larger soot particles and are easy to cause abrasion of the air cap, wherein an abrasion-proof sleeve pipe is sleeved at the upper part of an air intake pipe; the lower end of an air cap housing is sleeved on the abrasion-proof sleeve pipe and hermetically connected with the abrasion-proof sleeve pipe; an air passage is arranged between the air cap housing and the outer walls of the air intake pipe and the abrasion-proof sleeve pipe; a plurality of slant holes communicated with the air passage are uniformly formed along the circumferential direction of the side wall of the lower part of the air cap housing; the highest point of the intersection line formed by each slant hole and the inner surface of the air cap housing is higher than that of the intersection formed by each slant hole and the outer surface of the air cap housing; and the included angles between the axes of the slant holes and the horizontal direction are between 20 and 30 degrees. The boiler air cap is applied to the circulating fluid bed boiler.
Description
Technical field
The utility model relates to a kind of Wind cap for boiler, is specifically related to a kind of blast cap that is used on the CFBB.
Background technology
Wind cap for boiler is the part of boiler wind speed adjustment device, and air distribution device is the important component part of CFBB, and the effect of air distribution device is the entering boiling section bottom section that makes even air, to guarantee the burning of fuel temperature under good fluidized state.Air distribution device is made up of air distribution plate and Wind cap for boiler.Blast cap has patterns such as mushroom hair style, cylindricality, sphere and umbrella shape.The most popular pattern of China is the mushroom hair style blast cap.Be processed with the exhaust vent of along continuous straight runs on the existing Wind cap for boiler outer cover, cause bigger soot particle to be blocked in the exhaust vent, and be washed into adjacent blast cap easily, be prone to cause the blast cap wearing and tearing from the air-flow that exhaust vent comes out.
The utility model content
The purpose of the utility model is for the exhaust vent that solves existing Wind cap for boiler is prone to be blocked in the exhaust vent and be prone to cause the blast cap wear problems by bigger soot particle, and then a kind of blast cap of circulating fluidized bed boiler is provided.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be: the blast cap of circulating fluidized bed boiler of the utility model comprises blast cap outer cover and blast pipe; Said Wind cap for boiler also comprises Antiwear casing; Said Antiwear casing is sleeved on the top of blast pipe; The lower end of said blast cap outer cover is sleeved on the Antiwear casing; And the lower end of blast cap outer cover is connected with Antiwear casing is airtight, is the air channel between the outer wall of said blast cap outer cover and blast pipe and Antiwear casing, and the lower sides of said blast cap outer cover along the circumferential direction is uniformly distributed with and is processed with a plurality of inclined holes that are connected with the air channel; And the peak of the intersection that the outer cover inner surface of each inclined hole and blast cap forms is higher than the peak of the intersection of each inclined hole and the outer cover outer surface formation of blast cap, and the axis of said inclined hole and the angle between the horizontal direction are 10～20 °.
The beneficial effect of the utility model is: the exhaust vent (inclined hole) that is processed with inclination on the Wind cap for boiler of the utility model; Because exhaust vent is the inclined hole that tilts; Exhaust vent flows to the outside of blast cap outer cover to the big soot particle that the air outlet place is mingled with in the effect lower edge of gravity; Greatly reduce big soot particle and be blocked in the probability in the exhaust vent, also avoid the adjacent blast cap of airflow scouring simultaneously, reduced the wearing and tearing of blast cap; The Wind cap for boiler of the utility model adopts Antiwear casing to be sleeved on the blast pipe, prevents that effectively the air-flow that pours in down a chimney the air intake cap from directly washing away the blast pipe outer wall, has avoided the wearing and tearing of blast pipe outer wall, has prolonged the service life of blast pipe.
Description of drawings
Fig. 1 is the front view cutaway view of the blast cap of circulating fluidized bed boiler of the utility model, and Fig. 2 is the front view cutaway view of blast cap outer cover, and Fig. 3 is the A-A cutaway view of Fig. 2.
The specific embodiment
The specific embodiment one: shown in Fig. 1～3; The blast cap of circulating fluidized bed boiler of this embodiment comprises blast cap outer cover 1 and blast pipe 2; Said Wind cap for boiler also comprises Antiwear casing 3; Said Antiwear casing 3 is sleeved on the top of blast pipe 2; The lower end of said blast cap outer cover 1 is sleeved on the Antiwear casing 3, and the lower end of blast cap outer cover 1 and 3 airtight connections of Antiwear casing, is air channel 4 between the outer wall of said blast cap outer cover 1 and blast pipe 2 and Antiwear casing 3; The lower sides of said blast cap outer cover 1 along the circumferential direction is uniformly distributed with and is processed with a plurality of inclined hole 1-1 that are connected with air channel 4, and the peak of the intersection of each inclined hole 1-1 and the formation of blast cap outer cover 1 inner surface is higher than the peak of the intersection of each inclined hole 1-1 and the formation of blast cap outer cover 1 outer surface.The axis that is each inclined hole 1-1 is low inside and high outside, and the axis of said inclined hole 1-1 and the angle between the horizontal direction are 10～20 °.
The specific embodiment two: shown in Fig. 1～2, the axis of the said inclined hole 1-1 of this embodiment and the angle between the horizontal direction are 15 °.So design can reduce big soot particle and be blocked in the probability in the hole, also avoids the adjacent blast cap of airflow scouring, the wearing and tearing that alleviate blast cap simultaneously.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: as shown in Figure 3, the quantity of the said inclined hole 1-1 of this embodiment is three to four.Other composition and annexation are identical with the specific embodiment one or two.
The specific embodiment four: as shown in Figure 1, the said Wind cap for boiler of this embodiment also comprises the circle 5 that dams, and the said circle 5 that dams is embedded in the upper end of blast pipe 2.So design; Under the prerequisite that satisfies the airduct wind speed, strengthened the wear-resistant intensity of blast pipe, prolonged the service time of blast pipe greatly; Can also be through the dam wind speed in aperture adjustment blast pipe exit of circle of change; Thereby adapt to the different size blast cap, and be convenient for changing the circle 5 that dams, saved the replacing time.Other composition and annexation are identical with the specific embodiment three.
Claims (4)
1. blast cap of circulating fluidized bed boiler; Said Wind cap for boiler comprises blast cap outer cover (1) and blast pipe (2); It is characterized in that: said Wind cap for boiler also comprises Antiwear casing (3); Said Antiwear casing (3) is sleeved on the top of blast pipe (2); The lower end of said blast cap outer cover (1) is sleeved on the Antiwear casing (3); And the lower end of blast cap outer cover (1) and airtight connection of Antiwear casing (3) are air channel (4) between the outer wall of said blast cap outer cover (1) and blast pipe (2) and Antiwear casing (3), and the lower sides of said blast cap outer cover (1) along the circumferential direction is uniformly distributed with and is processed with a plurality of inclined holes (1-1) that are connected with air channel (4); And the peak of the intersection that each inclined hole (1-1) and blast cap outer cover (1) inner surface form is higher than the peak of the intersection of each inclined hole (1-1) and the formation of blast cap outer cover (1) outer surface, and the axis of said inclined hole (1-1) and the angle between the horizontal direction (α) are 10～20 °.
2. blast cap of circulating fluidized bed boiler according to claim 1 is characterized in that: the axis of said inclined hole (1-1) and the angle between the horizontal direction (α) are 15 °.
3. blast cap of circulating fluidized bed boiler according to claim 1 and 2 is characterized in that: the quantity of said inclined hole (1-1) is three to four.
4. blast cap of circulating fluidized bed boiler according to claim 3 is characterized in that: said Wind cap for boiler also comprises the circle (5) that dams, and the said circle (5) that dams is embedded in the upper end of blast pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204567304U CN202328200U (en) | 2011-11-17 | 2011-11-17 | Air cap of circulating fluid bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204567304U CN202328200U (en) | 2011-11-17 | 2011-11-17 | Air cap of circulating fluid bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202328200U true CN202328200U (en) | 2012-07-11 |
Family
ID=46440181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204567304U Expired - Fee Related CN202328200U (en) | 2011-11-17 | 2011-11-17 | Air cap of circulating fluid bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202328200U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504481A (en) * | 2017-07-30 | 2017-12-22 | 北京亚高科能源科技有限公司 | A kind of blast cap |
| CN112344357A (en) * | 2020-11-04 | 2021-02-09 | 深圳市果源石油化工有限公司 | Processing technology for iron and steel smelting boiler accessory |
-
2011
- 2011-11-17 CN CN2011204567304U patent/CN202328200U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504481A (en) * | 2017-07-30 | 2017-12-22 | 北京亚高科能源科技有限公司 | A kind of blast cap |
| CN112344357A (en) * | 2020-11-04 | 2021-02-09 | 深圳市果源石油化工有限公司 | Processing technology for iron and steel smelting boiler accessory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20191117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |