CN102721047A - Material-returning air cap structure - Google Patents
Material-returning air cap structure Download PDFInfo
- Publication number
- CN102721047A CN102721047A CN2012102292058A CN201210229205A CN102721047A CN 102721047 A CN102721047 A CN 102721047A CN 2012102292058 A CN2012102292058 A CN 2012102292058A CN 201210229205 A CN201210229205 A CN 201210229205A CN 102721047 A CN102721047 A CN 102721047A
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- China
- Prior art keywords
- pipe
- air cap
- blast cap
- nut
- returning
- 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.)
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- Pressure Vessels And Lids Thereof (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides a material-returning air cap structure. The material-returning air cap structure is easy to detach, time-saving and labor-saving during replacement and high in replacing efficiency. The material-returning air cap structure comprises an air cap head and an air cap connecting pipe, wherein the air cap head is fixedly connected with the upper end of the air cap connecting pipe through screw threads. The material-returning air cap structure is characterized in that a pipe is sleeved on the outer edge surface of the air cap connecting pipe, the upper end surface of the pipe is arranged on the lower end surface of the air cap head in a jacking way; after penetrating through an air-distributing plate, the pipe extends into a material-returning box; the pipe is connected with the air-distributing plate in a welding way; the lower end of the air cap connecting pipe is exposed out of the pipe; external screw threads are formed on the part, exposed out of the pipe, of the air cap connecting pipe; a nut is fixedly connected with the part, exposed out of the pipe, of the air cap connecting pipe, through screw threads; and the lower end surface of the pipe supports the upper end surface of the nut.
Description
Technical field
The present invention relates to the technical field of structures of circulating bed boiler, be specially the returning charge cap structure.
Background technology
CFBB is compared with traditional chain-grate boiler, pulverized-coal fired boiler, and its fuel tolerance is wide, SOx, advantage that the original discharge capacity of NOx is low, has obtained using widely in the medium and small power plant of China, steam power plant.Returning charge bellows in the CFBB and high-temperature separator are the critical components in the CFBB; Blast cap in the returning charge bellows also is the consumable accessory in the CFBB; After boiler operatiopn a period of time; The returning charge blast cap needs often to change, because the returning charge blast cap is in light weight, need adopt thread connecting mode to fix with adapter.But after operation a period of time, screw thread at high temperature can be scorched to death, and can only change blast cap through the method for destroying wear-resistant castable cutting adapter, not only time-consuming but also require great effort, inefficiency.
Summary of the invention
To the problems referred to above, the invention provides the returning charge cap structure, it is quick detachable, and is time saving and energy saving during replacing, and it is high to change efficient.
The returning charge cap structure; Its technical scheme is such: it comprises blast cap head, blast cap adapter; Said blast cap head thread is fastenedly connected the upper end that said blast cap is taken over, and it is characterized in that: the outer edge surface that said blast cap is taken over is set with pipe, and the upper surface of said pipe is mounted on the lower surface of said blast cap head; Said pipe run through air distribution plate after stretch into the returning charge case; Said pipe is welded to connect said air distribution plate, and the lower end that said blast cap is taken over exposes to said pipe, and said blast cap is taken over the part that exposes to said pipe and had external screw thread; Nut thread is fastenedly connected said blast cap and takes over the part that exposes to said pipe, and the lower surface of said pipe is supported on the upper surface of said nut.
It is further characterized in that: between the lower surface of said pipe and the upper surface of said nut packing ring is housed.
After adopting structure of the present invention, nut is in the returning charge bellows, and operating temperature is normal temperature forever; Therefore screw thread can not burnt out, and nut can be back-outed easily, the blast cap head that decreases ring is taken over together with blast cap together split out; Then new blast cap head and blast cap are taken over and are injected in the pipe, screw on nut both can, it is quick detachable; Time saving and energy saving during replacing, it is high to change efficient.
Description of drawings
Fig. 1 is a front view sketch map of the present invention.
The specific embodiment
See Fig. 1, it comprises blast cap head 1, blast cap adapter 2, and blast cap head 1 screw threads for fastening connects blast cap and takes over 2 upper end; The outer edge surface of blast cap adapter 2 is set with pipe 3; The upper surface of pipe 3 is mounted on the lower surface of blast cap head 1, pipe 3 run through air distribution plate 4 after stretch into returning charge case 5, pipe 3 is welded to connect air distribution plate 4; The lower end of blast cap adapter 2 exposes to pipe 3; The part that blast cap adapter 2 exposes to pipe 3 has external screw thread, and nut 6 screw threads for fastening connect the part that blast cap adapter 2 exposes to pipe 3, and the lower surface of pipe 3 is supported on the upper surface of nut 6.Packing ring 7 is housed between the upper surface of the lower surface of pipe 3 and nut 6.
Claims (2)
1. returning charge cap structure, it comprises that blast cap head, blast cap take over, said blast cap head thread is fastenedly connected the upper end that said blast cap is taken over; It is characterized in that: the outer edge surface that said blast cap is taken over is set with pipe; The upper surface of said pipe is mounted on the lower surface of said blast cap head, said pipe run through air distribution plate after stretch into the returning charge case, said pipe is welded to connect said air distribution plate; The lower end that said blast cap is taken over exposes to said pipe; Said blast cap is taken over the part that exposes to said pipe and is had external screw thread, and nut thread is fastenedly connected said blast cap and takes over the part that exposes to said pipe, and the lower surface of said pipe is supported on the upper surface of said nut.
2. returning charge cap structure according to claim 1 is characterized in that: between the lower surface of said pipe and the upper surface of said nut packing ring is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229205.8A CN102721047B (en) | 2012-07-04 | 2012-07-04 | Material-returning air cap structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229205.8A CN102721047B (en) | 2012-07-04 | 2012-07-04 | Material-returning air cap structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102721047A true CN102721047A (en) | 2012-10-10 |
| CN102721047B CN102721047B (en) | 2014-08-27 |
Family
ID=46946879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210229205.8A Active CN102721047B (en) | 2012-07-04 | 2012-07-04 | Material-returning air cap structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102721047B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2690749Y (en) * | 2004-04-06 | 2005-04-06 | 无锡华光锅炉股份有限公司 | Socket type connection structure for funnel cap |
| US20080127868A1 (en) * | 2006-11-16 | 2008-06-05 | Seminatore Salvatore J | Nozzle system |
| CN201121894Y (en) * | 2007-08-20 | 2008-09-24 | 四川省宜宾惠美线业有限责任公司 | Split type circulating fluidized bed boiler hood |
| CN201455615U (en) * | 2009-07-03 | 2010-05-12 | 郑州神牛铸造有限公司 | Funnel removing device of fluid-bed boiler |
| CN101749698A (en) * | 2008-12-07 | 2010-06-23 | 孙斌 | Method for installing blast cap of circulating fluidized bed boiler |
| CN201606872U (en) * | 2009-12-28 | 2010-10-13 | 上海锅炉厂有限公司 | Detachable cowl utilizing threaded connection |
| CN201875695U (en) * | 2010-11-19 | 2011-06-22 | 北京中科通用能源环保有限责任公司 | Wind cap for hearth |
| CN202791999U (en) * | 2012-07-04 | 2013-03-13 | 无锡华光锅炉股份有限公司 | Material return wind cap structure |
-
2012
- 2012-07-04 CN CN201210229205.8A patent/CN102721047B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2690749Y (en) * | 2004-04-06 | 2005-04-06 | 无锡华光锅炉股份有限公司 | Socket type connection structure for funnel cap |
| US20080127868A1 (en) * | 2006-11-16 | 2008-06-05 | Seminatore Salvatore J | Nozzle system |
| CN201121894Y (en) * | 2007-08-20 | 2008-09-24 | 四川省宜宾惠美线业有限责任公司 | Split type circulating fluidized bed boiler hood |
| CN101749698A (en) * | 2008-12-07 | 2010-06-23 | 孙斌 | Method for installing blast cap of circulating fluidized bed boiler |
| CN201455615U (en) * | 2009-07-03 | 2010-05-12 | 郑州神牛铸造有限公司 | Funnel removing device of fluid-bed boiler |
| CN201606872U (en) * | 2009-12-28 | 2010-10-13 | 上海锅炉厂有限公司 | Detachable cowl utilizing threaded connection |
| CN201875695U (en) * | 2010-11-19 | 2011-06-22 | 北京中科通用能源环保有限责任公司 | Wind cap for hearth |
| CN202791999U (en) * | 2012-07-04 | 2013-03-13 | 无锡华光锅炉股份有限公司 | Material return wind cap structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102721047B (en) | 2014-08-27 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Address after: 214028 No. 3 Chengnan Road, new Wu District, Jiangsu, Wuxi Patentee after: Wuxi Huaguang Environmental Protection Energy Group Co., Ltd Address before: 214028 No. 3 Chengnan Road, New District, Jiangsu, Wuxi Patentee before: WUXI HUAGUANG BOILER Co.,Ltd. |