CN203797649U - Anti-drop easily-disassembled material return wind cap for circulating fluidized bed boiler (CFB) - Google Patents
Anti-drop easily-disassembled material return wind cap for circulating fluidized bed boiler (CFB) Download PDFInfo
- Publication number
- CN203797649U CN203797649U CN201420144603.4U CN201420144603U CN203797649U CN 203797649 U CN203797649 U CN 203797649U CN 201420144603 U CN201420144603 U CN 201420144603U CN 203797649 U CN203797649 U CN 203797649U
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- CN
- China
- Prior art keywords
- blast cap
- wind cap
- cap head
- head
- wind
- 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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- 239000000463 material Substances 0.000 title abstract description 8
- 238000002485 combustion reaction Methods 0.000 description 3
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model provides an anti-drop easily-disassembled material return wind cap for a circulating fluidized bed boiler (CFB). The anti-drop easily-disassembled material return wind cap is capable of guaranteeing a wind cap head not to loose and fall off due to the impact of the fluidized wind of a high-pressure head, guaranteeing the wind cap head to be conveniently clamped by a wrench so as to be tightened, and guaranteeing the circulating material of the whole boiler to be normally sent back. The anti-drop easily-disassembled material return wind cap comprises the wind cap head and a wind cap connecting pipe; the lower end of the wind cap head is in threaded connection and sheathed with an upper part joint of the wind cap connecting pipe; a middle ring-shaped surface of the wind cap head is provided with an air outlet hole; a center hole of the wind cap connecting pipe is communicated with a cavity formed by combining the wind cap head and the wind cap connecting pipe; the cavity is communicated with the air outlet hole. The anti-drop easily-disassembled material return wind cap is characterized in that the middle of the wind cap connecting pipe is provided with an external boss structure; the upper end surface of the external boss structure has a plane structure; a spring washer is arranged between the bottom end surface of the wind cap head and the upper end surface of the external boss structure in a pressing way; the two sides of the wind cap head corresponding to the outer ring surface of the thread part are respectively processed into a plane structure.
Description
Technical field
The utility model relates to the technical field of boiler structure, is specially the quick detachable type returning charge of a kind of slip-off preventing for CFBB blast cap.
Background technology
Circulating fluidized-bed boiler Combustion technology is a coal combustion technology growing up over nearly 20 years, and it has that fuel tolerance is wide, efficiency of combustion is high, discharged nitrous oxides is low, load regulation rate is large and the outstanding advantages such as Load Regulation is fast.Material-returning device is the loop back device of a particular importance in Materiais for CFB Boilers circulation; blast cap in it affects the normally main parts size of loopback of whole boiler recycle stock especially; the blast cap that material-returning device adopts at present mostly adopts the form of being threaded, version as schematically shown in Figure 1.Temperature of charge in material-returning device is generally between 850～1050 DEG C, and material concentration is high, although returning charge blast cap has adopted the material of high temperature resistant antiwear, still needs to carry out maintain and replace after using a period of time.What Fig. 1 adopted is threaded, superstructure the dismounting of blast cap head, but when operation, the returning charge wind of blast cap inner high voltage head is very easy to make thread looseness, cause blast cap head to come off, affect material-returning device and normally move, the cylindrical structure of blast cap head cannot use suitable instrument to carry out binding thread in addition.
Summary of the invention
For the problems referred to above; the utility model provides the quick detachable type returning charge of a kind of slip-off preventing for CFBB blast cap; its can ensure blast cap head can be because of the impact of high-head fluidized wind loose or dislocation; and be convenient to spanner and clip and carry out degree of tightness blast cap head, guarantee that whole boiler recycle stock can normal loopback.
The quick detachable type returning charge of a kind of slip-off preventing for CFBB blast cap, its technical scheme is such: it comprises blast cap head, blast cap is taken over, the lower end of described blast cap head is threaded and is placed on described blast cap and takes over top joint, the middle part ring surface of described blast cap head is provided with venthole, the centre bore that described blast cap is taken over is communicated with described blast cap head, blast cap is taken over the cavity being combined to form, described cavity is communicated with described venthole, it is characterized in that: the middle part that described blast cap is taken over is provided with outer lug boss structure, the upper surface of described outer lug boss structure is planar structure, between the upper surface of the bottom face of described blast cap head and described outer lug boss structure, be pressed with spring washer, planar structure is processed in the both sides of the outer ring surface corresponding to threaded portion of described blast cap head.
It is further characterized in that: the inner ring surface of the lower end of described blast cap head is welded with screw shackle, the lower end position of the top joint that described blast cap is taken over is set with threaded connecting sleeve, the outer ring surface screw threads for fastening of the inner ring surface of described screw shackle and described threaded connecting sleeve is connected, and the position of described venthole is higher than described screw shackle.
Adopt after structure of the present utility model, blast cap head and blast cap are taken over to adopt and are threaded, between install spring washer additional, the use of spring washer can ensure blast cap head can be because of the impact of high-head fluidized wind loose or dislocation; The middle part that blast cap is taken over is provided with outer lug boss structure; the upper surface of described outer lug boss structure is planar structure; planar structure is processed in the both sides of the outer ring surface corresponding to threaded portion of blast cap head, is convenient to spanner and clips and carry out degree of tightness blast cap head, guarantees that whole boiler recycle stock can normal loopback.
Brief description of the drawings
Fig. 1 is the structural representation of the blast cap of existing material-returning device employing;
Fig. 2 is the structural representation of front view of the present utility model;
Fig. 3 is the top view structural representation of Fig. 2.
Detailed description of the invention
See Fig. 2～Fig. 3, it comprises blast cap head 1, blast cap takes over 2, the lower end of blast cap head 1 is threaded and is placed on blast cap and takes over 2 top joints, the middle part ring surface of blast cap head 1 is provided with venthole 3, the centre bore 4 of blast cap adapter 2 is communicated with blast cap head 1, blast cap is taken over 2 cavitys that are combined to form 5, cavity 5 is communicated with venthole 3, the middle part of blast cap adapter 2 is provided with outer lug boss structure 6, the upper surface of outer lug boss structure 6 is planar structure, between the upper surface of the bottom face of blast cap head 1 and outer lug boss structure 6, be pressed with spring washer 7, planar structure 8 is processed in the both sides of the outer ring surface corresponding to threaded portion of blast cap head 1.
The inner ring surface of the lower end of blast cap head 1 is welded with screw shackle 9, the lower end position of the top joint of blast cap adapter 2 is set with threaded connecting sleeve 10, the outer ring surface screw threads for fastening of the inner ring surface of screw shackle 9 and threaded connecting sleeve 10 is connected, and the position of venthole 3 is higher than screw shackle 9.
Claims (2)
1. the quick detachable type returning charge of the slip-off preventing for a CFBB blast cap, it comprises blast cap head, blast cap is taken over, the lower end of described blast cap head is threaded and is placed on described blast cap and takes over top joint, the middle part ring surface of described blast cap head is provided with venthole, the centre bore that described blast cap is taken over is communicated with described blast cap head, blast cap is taken over the cavity being combined to form, described cavity is communicated with described venthole, it is characterized in that: the middle part that described blast cap is taken over is provided with outer lug boss structure, the upper surface of described outer lug boss structure is planar structure, between the upper surface of the bottom face of described blast cap head and described outer lug boss structure, be pressed with spring washer, planar structure is processed in the both sides of the outer ring surface corresponding to threaded portion of described blast cap head.
2. the quick detachable type returning charge of a kind of slip-off preventing for CFBB according to claim 1 blast cap, it is characterized in that: the inner ring surface of the lower end of described blast cap head is welded with screw shackle, the lower end position of the top joint that described blast cap is taken over is set with threaded connecting sleeve, the outer ring surface screw threads for fastening of the inner ring surface of described screw shackle and described threaded connecting sleeve is connected, and the position of described venthole is higher than described screw shackle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144603.4U CN203797649U (en) | 2014-03-28 | 2014-03-28 | Anti-drop easily-disassembled material return wind cap for circulating fluidized bed boiler (CFB) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144603.4U CN203797649U (en) | 2014-03-28 | 2014-03-28 | Anti-drop easily-disassembled material return wind cap for circulating fluidized bed boiler (CFB) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797649U true CN203797649U (en) | 2014-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420144603.4U Expired - Fee Related CN203797649U (en) | 2014-03-28 | 2014-03-28 | Anti-drop easily-disassembled material return wind cap for circulating fluidized bed boiler (CFB) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912869A (en) * | 2014-03-28 | 2014-07-09 | 无锡华光锅炉股份有限公司 | Anti-disengaging detachable material returning air cap for circulating fluidized bed boiler |
-
2014
- 2014-03-28 CN CN201420144603.4U patent/CN203797649U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912869A (en) * | 2014-03-28 | 2014-07-09 | 无锡华光锅炉股份有限公司 | Anti-disengaging detachable material returning air cap for circulating fluidized bed boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
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. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |