CN103453523A - Center cylinder structure for circulating fluidized bed boiler - Google Patents
Center cylinder structure for circulating fluidized bed boiler Download PDFInfo
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- CN103453523A CN103453523A CN2013103995036A CN201310399503A CN103453523A CN 103453523 A CN103453523 A CN 103453523A CN 2013103995036 A CN2013103995036 A CN 2013103995036A CN 201310399503 A CN201310399503 A CN 201310399503A CN 103453523 A CN103453523 A CN 103453523A
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- center cylinder
- central tube
- hanging
- fluidized bed
- boiler
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Abstract
The invention provides a center cylinder structure for a circulating fluidized bed boiler. When being subjected to an external force effect, the center cylinder structure is very stable and is unlikely to be deformed so that the self rigidity of a cylinder body of a center cylinder can be guaranteed, the cylinder body is not deformed in an operation process of the boiler, and the hanging is stable and reliable. The center cylinder structure for the circulating fluidized bed boiler comprises the center cylinder and a hanging structure, wherein the center cylinder is mounted inside the boiler by the hanging structure at the upper part. The center cylinder structure is characterized in that the center cylinder is specifically in a cone frustum structure which is closed up inwards from top to bottom; an outer conical surface at the upper part of the cone frustum structure is supported on the inner surface of the hanging structure in a clung manner; the center cylinder is in an annular structure at the overlooking state.
Description
Technical field
The present invention relates to the technical field of structures of boiler, be specially a kind of structure of the central tube for CFBB.
Background technology
Existing CFBB adopts cylindrical center barrel structure form, see Fig. 1, Fig. 2, this installs in boiler running process in high temperature, negative pressure state, high temperature makes the Strength of Metallic Materials deliquescing, long-term negative pressure makes the cylinder lower end slowly produce distortion, after distortion acquires a certain degree, can occur sharply to change.Central tube hang the surrounding that is in the cylindrical shell top edge, the upright projection of cylindrical shell is a circle, it shows erecting by overhang easy unstability and deforming when the central tube cross section is subject to External Force Acting.Two above aspects can cause central tube to lose efficacy, and boiler can not set up the outer circulation of material and forced blowing out, affects boiler safety stable operation.
Summary of the invention
For the problems referred to above, the invention provides a kind of structure of the central tube for CFBB, when it is subject to External Force Acting, its performance is very firm, can not deform easily, can guarantee self rigidity of central tube cylindrical shell, in boiler operatiopn, cylindrical shell can not be out of shape, and hangs more solid and reliable.
A kind of structure of the central tube for CFBB, its technical scheme is such: it comprises central tube, hanging structure, described central tube is installed on boiler internal by the described hanging structure on top, it is characterized in that: described central tube is specially the circular cone structure inwardly closed up from top to bottom, the male cone (strobilus masculinus) on the top of described circular cone structure is close to the inner face that is supported on described hanging structure, and the described central tube of overlooking under state is circular ring.
It is further characterized in that: the bottom of described circular cone structure is gas approach, and the top of described circular cone structure is exhanst gas outlet.
After adopting structure of the present invention, because central tube is specially the circular cone structure inwardly closed up from top to bottom, the male cone (strobilus masculinus) on the top of circular cone structure is close to the inner face that is supported on hanging structure, the central tube of overlooking under state is circular ring, owing to adopting circular cone structure, its upright projection that makes cylindrical shell is toroidal, when annulus is subject to External Force Acting, its performance is very firm, can not deform easily, therefore this truncated cone structure can guarantee self rigidity of central tube cylindrical shell, in boiler operatiopn, cylindrical shell can not be out of shape, and hangs more solid and reliable.
The accompanying drawing explanation
The front view structural representation that Fig. 1 is prior art;
Fig. 2 is the top view structural representation of Fig. 1;
Fig. 3 is structural representation of the present invention;
Fig. 4 is the top view structural representation of Fig. 3.
The specific embodiment
See Fig. 3, Fig. 4, it comprises central tube 1, hanging structure 2, central tube 1 is installed on boiler internal by the hanging structure 2 on top, central tube 1 is specially the circular cone structure inwardly closed up from top to bottom, the male cone (strobilus masculinus) on the top of circular cone structure is close to the inner face that is supported on hanging structure 2, the central tube 1 of overlooking under state is circular ring, and the bottom of circular cone structure is gas approach 3, and the top of circular cone structure is exhanst gas outlet 4.
Claims (2)
1. the structure of the central tube for CFBB, it comprises central tube, hanging structure, described central tube is installed on boiler internal by the described hanging structure on top, it is characterized in that: described central tube is specially the circular cone structure inwardly closed up from top to bottom, the male cone (strobilus masculinus) on the top of described circular cone structure is close to the inner face that is supported on described hanging structure, and the described central tube of overlooking under state is circular ring.
2. a kind of structure of the central tube for CFBB according to claim 1, it is characterized in that: the bottom of described circular cone structure is gas approach, the top of described circular cone structure is exhanst gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103995036A CN103453523A (en) | 2013-09-05 | 2013-09-05 | Center cylinder structure for circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103995036A CN103453523A (en) | 2013-09-05 | 2013-09-05 | Center cylinder structure for circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103453523A true CN103453523A (en) | 2013-12-18 |
Family
ID=49736183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103995036A Pending CN103453523A (en) | 2013-09-05 | 2013-09-05 | Center cylinder structure for circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN103453523A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4702181A (en) * | 1986-11-24 | 1987-10-27 | Aluminum Company Of America | Cyclone separator |
| CN2936439Y (en) * | 2006-04-26 | 2007-08-22 | 哈尔滨锅炉厂有限责任公司 | Bias high-efficiency cyclone separator |
| CN201273563Y (en) * | 2008-09-08 | 2009-07-15 | 济南锅炉集团有限公司 | Steam-cooling center barrel |
| CN201412834Y (en) * | 2009-05-21 | 2010-02-24 | 曲洪毅 | Turbine core type center tube of circulating fluid bed boiler |
| CN101725962A (en) * | 2009-11-25 | 2010-06-09 | 西安热工研究院有限公司 | Circulating fluidized bed boiler combusting low calorific value gas fuel |
| AT11432U1 (en) * | 2009-07-20 | 2010-10-15 | Guntamatic Heiztechnik Gmbh | COMBUSTION CHAMBER FOR PARTICULAR FUEL, ESPECIALLY WOOD PELLETS |
| CN203464264U (en) * | 2013-09-05 | 2014-03-05 | 无锡华光锅炉股份有限公司 | Center cylinder structure for circulation fluidized bed boiler |
-
2013
- 2013-09-05 CN CN2013103995036A patent/CN103453523A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4702181A (en) * | 1986-11-24 | 1987-10-27 | Aluminum Company Of America | Cyclone separator |
| CN2936439Y (en) * | 2006-04-26 | 2007-08-22 | 哈尔滨锅炉厂有限责任公司 | Bias high-efficiency cyclone separator |
| CN201273563Y (en) * | 2008-09-08 | 2009-07-15 | 济南锅炉集团有限公司 | Steam-cooling center barrel |
| CN201412834Y (en) * | 2009-05-21 | 2010-02-24 | 曲洪毅 | Turbine core type center tube of circulating fluid bed boiler |
| AT11432U1 (en) * | 2009-07-20 | 2010-10-15 | Guntamatic Heiztechnik Gmbh | COMBUSTION CHAMBER FOR PARTICULAR FUEL, ESPECIALLY WOOD PELLETS |
| CN101725962A (en) * | 2009-11-25 | 2010-06-09 | 西安热工研究院有限公司 | Circulating fluidized bed boiler combusting low calorific value gas fuel |
| CN203464264U (en) * | 2013-09-05 | 2014-03-05 | 无锡华光锅炉股份有限公司 | Center cylinder structure for circulation fluidized bed boiler |
Non-Patent Citations (1)
| Title |
|---|
| 姚世伟等: "480t/h循环流化床锅炉旋风分离器中心筒改造", 《科技创新导报》, no. 21, 21 July 2012 (2012-07-21) * |
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Application publication date: 20131218 |