CN103939893B - A kind of central tube fixed sturcture for circular fluid bed - Google Patents
A kind of central tube fixed sturcture for circular fluid bed Download PDFInfo
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- CN103939893B CN103939893B CN201410130463.XA CN201410130463A CN103939893B CN 103939893 B CN103939893 B CN 103939893B CN 201410130463 A CN201410130463 A CN 201410130463A CN 103939893 B CN103939893 B CN 103939893B
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Abstract
The present invention provides a kind of central tube fixed sturcture for circular fluid bed, and its structure is very simple, and free expanding, central tube can not be caused abrasion by ash-laden gas, eliminates potential safety hazard. it comprises central tube, backplate base, it is characterized in that: the top of described central tube is provided with two layers of Circular Plate structure, described Circular Plate specifically comprises upper ring plate, lower Circular Plate, described upper ring plate, the periphery of the described central tube between lower Circular Plate is evenly equipped with strengthens perpendicular muscle, the upper end of the perpendicular muscle of described reinforcement, lower end is welded to connect the lower surface of described upper ring plate respectively, the upper surface of lower Circular Plate, the middle sub-body of described central tube runs through the center mounting hole of described backplate base, the upper surface of the base Circular Plate of described backplate base is close in the lower surface of described lower Circular Plate.
Description
Technical field
The present invention relates to the technical field of boiler structure, it is specially a kind of supporting structure for preventing central cylinder of circulating fluid-bed boiler from coming off.
Background technology
The central tube of current circular fluid bed all adopts stay-bolt to fix or hanging structure fixes two kinds of structure formations, sees Fig. 1 and Fig. 2. Stay-bolt stationary installation in Fig. 1 is in the condition of high temperature in boiler running process, and bolt is located under shear stress for a long time, it is easy to ruptures, causes the accident that central tube comes off; There is the same problem equally in the central tube that the hanging structure in Fig. 2 is fixed, high temperature makes hanging metalwork strength of materials deliquescing, the reinforcement of central tube upper edge not also makes it at high temperature can deform to contract thus pull hanging hook, and therefore the distortion inefficacy that is easily distorted of the hook of meaning shown in figure causes central tube to come off. In addition under the condition of high temperature, the expansion characteristics of metallic substance so that in figure, " formation gap " place of signal can occur a circle space very soon, and part ash-laden gas can flow through this passage, long-term washes away the abrasion that can cause refractory materials and center barrel, forms potential safety hazard. Above Railway Project is all occur in the actual motion of boiler, and incidence is very high, is unfavorable for the long-term safety steady running of boiler. The central tube integral replacing adopting these two kinds of forms fixing in addition extremely bothers, need to remove a large amount of furnace walls around, otherwise just need the splicing welding carrying out central tube in stove, this often causes cylinder size and size not to be inconsistent, and the whole dismounting cycle is very long, it is unfavorable for the quick maintenance of boiler.
Summary of the invention
For the problems referred to above, the present invention provides a kind of central tube fixed sturcture for circular fluid bed, and its structure is very simple, and free expanding, central tube can not be caused abrasion by ash-laden gas, eliminates potential safety hazard.
A kind of central tube fixed sturcture for circular fluid bed, its technical scheme is such: it comprises central tube, backplate base, it is characterized in that: the top of described central tube is provided with two layers of Circular Plate structure, described Circular Plate specifically comprises upper ring plate, lower Circular Plate, described upper ring plate, the periphery of the described central tube between lower Circular Plate is evenly equipped with strengthens perpendicular muscle, the upper end of the perpendicular muscle of described reinforcement, lower end is welded to connect the lower surface of described upper ring plate respectively, the upper surface of lower Circular Plate, the middle sub-body of described central tube runs through the center mounting hole of described backplate base, the upper surface of the base Circular Plate of described backplate base is close in the lower surface of described lower Circular Plate.
It is characterised in that further:
The middle part of described central tube is specially the straight section structure of right cylinder, the bottom of described central tube is specially frustum of a cone closing in structure, the outside anchor ring of described frustum of a cone closing in structure is evenly equipped with enforced loop plane structure, and the outboard end of described enforced loop plane structure is all positioned at the downward vertical space of described center mounting hole;
The inner side of the close described central tube of described backplate base is wearing layer, outside is thermal insulation layer, and the outer setting of described thermal insulation layer has outer backplate, is provided with base Circular Plate deep floor between described wearing layer, thermal insulation layer.
After adopting the structure of the present invention, two layers of Circular Plate on the top of central tube and the reinforcing structure of strengthening perpendicular muscle are directly shelved on the upper surface of the base Circular Plate of backplate base as the support of central tube, the deadweight of cylinder makes two contact surfaces combine closely, ash-laden gas cannot flow through herein and cause abrasion, it is without the need to adopting other fixation, and its structure is very simple, free expanding, central tube can not be caused abrasion by ash-laden gas, eliminates potential safety hazard.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing stay-bolt dead center cylinder;
Fig. 2 is the structural representation of existing hanging structure dead center cylinder;
Fig. 3 is the front view structural representation of the present invention;
Fig. 4 is the vertical view structural representation (removing upper ring plate) of the central tube of Fig. 3.
Embodiment
See Fig. 3, Fig. 4, it comprises central tube 1, backplate base, the top of central tube 1 is provided with two layers of Circular Plate structure, Circular Plate specifically comprises upper ring plate 2, lower Circular Plate 3, the periphery of the central tube 1 between upper ring plate 2, lower Circular Plate 3 is evenly equipped with strengthens perpendicular muscle 4, upper end, the lower end of strengthening perpendicular muscle 4 are welded to connect the lower surface of upper ring plate 2, the upper surface of lower Circular Plate 3 respectively, the middle sub-body of central tube 1 runs through the center mounting hole 5 of backplate base, and the upper surface of the base Circular Plate 6 of backplate base is close in the lower surface of lower Circular Plate 3.
The middle part of central tube 1 is specially the straight section structure of right cylinder, the bottom of central tube 1 is specially frustum of a cone closing in structure 7, the outside anchor ring of frustum of a cone closing in structure 7 is evenly equipped with enforced loop plane structure 8, and the outboard end of enforced loop plane structure 8 is all positioned at the downward vertical space of center mounting hole 5; So that central tube 1 can overall propose from passage, when central tube 1 needs to change, only need to propose overall for old central tube from backplate base, reappose a new central tube 1 just passable, eliminate the program at boiler internal splicing welding cylinder, ensureing the size requirement of central tube 1 completely, whole structure is convenient to install and change.
The inner side of the close central tube 1 of backplate base is wearing layer 9, outside is thermal insulation layer 10, and the outer setting of thermal insulation layer 10 has outer backplate 11, is provided with base Circular Plate deep floor 12 between wearing layer 9, thermal insulation layer 10.
Claims (1)
1. the central tube fixed sturcture for circular fluid bed, it comprises central tube, backplate base, it is characterized in that: the top of described central tube is provided with two layers of Circular Plate structure, described Circular Plate specifically comprises upper ring plate, lower Circular Plate, described upper ring plate, the periphery of the described central tube between lower Circular Plate is evenly equipped with strengthens perpendicular muscle, the upper end of the perpendicular muscle of described reinforcement, lower end is welded to connect the lower surface of described upper ring plate respectively, the upper surface of lower Circular Plate, the middle sub-body of described central tube runs through the center mounting hole of described backplate base, the upper surface of the base Circular Plate of described backplate base is close in the lower surface of described lower Circular Plate, the middle part of described central tube is specially the straight section structure of right cylinder, the bottom of described central tube is specially frustum of a cone closing in structure, the outside anchor ring of described frustum of a cone closing in structure is evenly equipped with enforced loop plane structure, and the outboard end of described enforced loop plane structure is all positioned at the downward vertical space of described center mounting hole, the inner side of the close described central tube of described backplate base is wearing layer, outside is thermal insulation layer, and the outer setting of described thermal insulation layer has outer backplate, is provided with base Circular Plate deep floor between described wearing layer, thermal insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410130463.XA CN103939893B (en) | 2014-04-02 | 2014-04-02 | A kind of central tube fixed sturcture for circular fluid bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410130463.XA CN103939893B (en) | 2014-04-02 | 2014-04-02 | A kind of central tube fixed sturcture for circular fluid bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939893A CN103939893A (en) | 2014-07-23 |
| CN103939893B true CN103939893B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410130463.XA Active CN103939893B (en) | 2014-04-02 | 2014-04-02 | A kind of central tube fixed sturcture for circular fluid bed |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895348B (en) * | 2016-02-04 | 2018-06-22 | 深圳市海目星激光科技有限公司 | A kind of transformer automatic assembly line |
| CN113776048A (en) * | 2021-09-02 | 2021-12-10 | 烟台通用电力设备有限公司 | Supercritical circulating fluidized bed boiler center cylinder mounting mode and sealing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471092A (en) * | 2013-09-05 | 2013-12-25 | 无锡华光锅炉股份有限公司 | Supporting structure used for preventing circulating fluidized bed boiler center cylinder from falling off |
| CN203501163U (en) * | 2013-10-18 | 2014-03-26 | 济南锅炉集团有限公司 | Muff-coupling centre cylinder |
| CN203797647U (en) * | 2014-04-02 | 2014-08-27 | 无锡华光锅炉股份有限公司 | Central cylinder fixing structure for circulating fluidized bed boiler |
-
2014
- 2014-04-02 CN CN201410130463.XA patent/CN103939893B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471092A (en) * | 2013-09-05 | 2013-12-25 | 无锡华光锅炉股份有限公司 | Supporting structure used for preventing circulating fluidized bed boiler center cylinder from falling off |
| CN203501163U (en) * | 2013-10-18 | 2014-03-26 | 济南锅炉集团有限公司 | Muff-coupling centre cylinder |
| CN203797647U (en) * | 2014-04-02 | 2014-08-27 | 无锡华光锅炉股份有限公司 | Central cylinder fixing structure for circulating fluidized bed boiler |
Non-Patent Citations (1)
| Title |
|---|
| 480t/h循环流化床锅炉旋风分离器中心筒改造;姚世伟等;《科技创新导报》;20120721(第21期);参见第109页第3栏第5-6段，第111页第1-3栏及图1-3 * |
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| CN103939893A (en) | 2014-07-23 |
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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. |
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