CN204593371U - Circulating fluidized bed boiler water-cooling wall shoe - Google Patents
Circulating fluidized bed boiler water-cooling wall shoe Download PDFInfo
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- CN204593371U CN204593371U CN201520159760.7U CN201520159760U CN204593371U CN 204593371 U CN204593371 U CN 204593371U CN 201520159760 U CN201520159760 U CN 201520159760U CN 204593371 U CN204593371 U CN 204593371U
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- water
- cooling wall
- deflector
- cooling
- fluidized bed
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Abstract
The utility model provides a kind of circulating fluidized bed boiler water-cooling wall shoe, comprise along boiler water wall multiple tracks water conservancy diversion beam mechanism in the form of a ring circumferentially, described water conservancy diversion beam mechanism comprises multiple upper tube body be coated on each water cooling tube in semicircle shape, and be connected to each upper tube body lower end in falling the deflector of " V " shape, the top of described deflector is fixed on the fin between each water cooling tube, in described deflector, be provided with multiple air vent away from the plate body of water-cooling wall side.Circulating fluidized bed boiler water-cooling wall shoe described in the utility model, can overcome the deficiency of existing water conservancy diversion beam abrasion-proof structure, ensures the abrasionproof effect of water-cooling wall.
Description
Technical field
The utility model relates to boiler plant technical field, particularly a kind of circulating fluidized bed boiler water-cooling wall shoe.
Background technology
At present, the CFBB problem that in use ubiquity waterwall tube cracking is serious, the wearing and tearing of water-cooling wall easily cause pipe explosion accident, and make boiler safety poor stability, continuous operating time is short.The main cause of waterwall tube cracking is caused to be, bed material and flying dust are because of fluidisation constantly rising in the middle of burner hearth, to decline fast formation sticking wall flow along the water-cooling wall of burner hearth surrounding again simultaneously, bed material and flying dust cause heavy wear to water-cooling wall along with sticking wall flow, particularly in lower furnace portion, sticking wall flow and bed material and flying dust speed higher, wear and tear more violent.For solving the waterwall tube cracking problem that sticking wall flow causes, the water conservancy diversion beam abrasion-proof structure adopting and be arranged on water-cooling wall place in burner hearth mostly is in prior art, water conservancy diversion beam is utilized to carry out water conservancy diversion to the bed material of flowing and flying dust, bed material and flying dust are directed in the middle of burner hearth, thus reach the object alleviating waterwall tube cracking.But existing water conservancy diversion beam is guided in the middle of burner hearth because of the bed material of flowing and flying dust, water-cooling wall place negative pressure can be caused to increase, more easily make burner hearth inner fluid flow to water-cooling wall by other direction, and then make water-cooling wall abrasionproof effect decline.
Utility model content
In view of this, the utility model is intended to propose a kind of circulating fluidized bed boiler water-cooling wall shoe, to overcome the deficiency of existing water conservancy diversion beam abrasion-proof structure.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of circulating fluidized bed boiler water-cooling wall shoe, comprise along boiler water wall multiple tracks water conservancy diversion beam mechanism in the form of a ring circumferentially, described water conservancy diversion beam mechanism comprises multiple upper tube body be coated on each water cooling tube in semicircle shape, and be connected to each upper tube body lower end in falling the deflector of " V " shape, the top of described deflector is fixed on the fin between each water cooling tube, in described deflector, be provided with multiple air vent away from the plate body of water-cooling wall side.
Further, each water cooling tube corresponds to the water cooling tube groove that position, upper tube body top is provided with indent, and the top of described upper tube body is embedded in described water cooling tube groove.
Further, described upper tube body and deflector are provided with the buffering indent of indent.
Further, from top to bottom interval is gradually little along boiler water wall for described deflector.
Relative to prior art, the utility model has following advantage:
This circulating fluidized bed boiler water-cooling wall shoe, can be protected water cooling tube by upper tube body, and can be used for the reliable connection of deflector.And utilization is the deflector design of " V " shape, and multiple air vent is provided with away from the plate body of water-cooling wall side in deflector, the fluid part flowing into air deflector can be made to be guided to the middle part of burner hearth, another part then enters the plate body place near water-cooling wall side in deflector through air vent, and at this plate body place, because stopping up water conservancy diversion, flow velocity reduces greatly, water-cooling wall place can be made like this to have a certain amount of blanketing gas, existing water conservancy diversion girder construction can be avoided thus to be all guided in the middle part of burner hearth because of fluid, and the water-cooling wall place negative pressure caused increases, easily make fluid flow to water-cooling wall by other direction and occur wear and tear problem.
Water cooling tube arranges water cooling tube groove, and makes the top of upper tube body be embedded in water cooling tube groove, can realize upper tube body surface and water cooling tube surperficial between smooth connection, prevent upper tube body top end produce local eddy currents.
Upper tube body and deflector arrange buffering indent can avoid affecting because of its expanded by heating and connection reliability between water-cooling wall.And from top to bottom interval is gradually little along boiler water wall to make deflector, can ensure that the fluid along water-cooling wall PARALLEL FLOW is guided in the middle part of burner hearth as far as possible.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structure diagram when circulating fluidized bed boiler water-cooling wall shoe described in the utility model embodiment is arranged on water-cooling wall;
Fig. 2 is the part-structure sketch of the deflector described in the utility model embodiment;
Fig. 3 is the structure sectional view when deflector described in the utility model embodiment is arranged on water-cooling wall;
Description of reference numerals:
1-water-cooling wall, 2-water cooling tube, 3-fin, 4-upper tube body, 5-deflector, the outer plate body of 51-, 52-inner plate body, 6-passage.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
The present embodiment relates to a kind of circulating fluidized bed boiler water-cooling wall shoe, as shown in Figure 1 to Figure 3, it comprises the water-cooling wall 1 multiple tracks water conservancy diversion beam mechanism in the form of a ring circumferentially along boiler, each water conservancy diversion beam mechanism comprises multiple upper tube body 4 be coated on each water cooling tube 2 in semicircle shape, and be connected to each upper tube body 4 lower end in falling the deflector 5 of " V " shape, the top of deflector 5 is fixed on the fin 3 between each water cooling tube 2, away from the plate body of water-cooling wall 1 side being also provided with multiple air vent 6 in deflector 5.
For ease of being described deflector 5 in the present embodiment, as shown in as arbitrary in Fig. 1 to Fig. 3, be called outer plate body 51 by deflector 5 away from the plate body of water-cooling wall 1 side, and the plate body near water-cooling wall 1 side in deflector 5 is called inner plate body 52.Outer plate body 51 and inner plate body 52 are connected in falling " V " shape, and namely air vent 6 is arranged on outer plate body 51.When deflector 5 is connected on water-cooling wall 1, between inner plate body 52 and water-cooling wall 1, there is less angle.In the present embodiment as shown in Figure 3, water cooling tube 2 corresponds to the water cooling tube groove that position, upper tube body 4 top is provided with indent, and namely the top of upper tube body 4 is embedded in this water cooling tube groove.
By arranging water cooling tube groove on water cooling tube 2, and making the top of upper tube body 4 be embedded in water cooling tube groove, the smooth connection between upper tube body 4 surface and water cooling tube 2 surface can be realized, to prevent from producing local eddy currents at upper tube body 4 top end.And be avoid upper tube body 4 and deflector 5 to affect the reliability be connected between they with water-cooling wall 1 because of expanded by heating, upper tube body 4 and deflector 5 also can be provided with the buffering indent of not shown indent.In addition, in the present embodiment, each deflector is also gradually little setting along boiler water wall 1 interval from top to bottom, can ensure that the fluid along water-cooling wall 1 PARALLEL FLOW is guided to the middle part of burner hearth as far as possible thus.
This circulating fluidized bed boiler water-cooling wall shoe, can be protected water cooling tube 2 by upper tube body 4, and can be used for the reliable connection of deflector 5.And the deflector 5 that utilization is " V " shape designs, and outer plate body 51 in deflector 5 is provided with multiple air vent 6, the fluid part flowing into deflector 5 place can be made by outer plate body 51 to be guided to the middle part of burner hearth, another part then enters inner plate body 52 place in deflector 5 through air vent 6, and at inner plate body 52 place, because stopping up water conservancy diversion, flow velocity reduces greatly, water-cooling wall 1 place can be made like this to have a certain amount of blanketing gas, existing water conservancy diversion girder construction can be avoided thus to be all guided in the middle part of burner hearth because of fluid, the water-cooling wall 1 place negative pressure caused increases, and easily make fluid flow to water-cooling wall 1 by other direction and occur wear and tear problem.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a circulating fluidized bed boiler water-cooling wall shoe, comprise along boiler water wall multiple tracks water conservancy diversion beam mechanism in the form of a ring circumferentially, it is characterized in that: described water conservancy diversion beam mechanism comprises multiple upper tube body be coated on each water cooling tube in semicircle shape, and be connected to each upper tube body lower end in falling the deflector of " V " shape, the top of described deflector is fixed on the fin between each water cooling tube, in described deflector, be provided with multiple air vent away from the plate body of water-cooling wall side.
2. circulating fluidized bed boiler water-cooling wall shoe according to claim 1, is characterized in that: on each water cooling tube, correspond to the water cooling tube groove that position, upper tube body top is provided with indent, the top of described upper tube body is embedded in described water cooling tube groove.
3. circulating fluidized bed boiler water-cooling wall shoe according to claim 2, is characterized in that: the buffering indent being provided with indent on described upper tube body and deflector.
4. circulating fluidized bed boiler water-cooling wall shoe according to any one of claim 1 to 3, is characterized in that: from top to bottom interval is gradually little along boiler water wall for described deflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159760.7U CN204593371U (en) | 2015-03-20 | 2015-03-20 | Circulating fluidized bed boiler water-cooling wall shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159760.7U CN204593371U (en) | 2015-03-20 | 2015-03-20 | Circulating fluidized bed boiler water-cooling wall shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204593371U true CN204593371U (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520159760.7U Expired - Fee Related CN204593371U (en) | 2015-03-20 | 2015-03-20 | Circulating fluidized bed boiler water-cooling wall shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204593371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546527A (en) * | 2016-01-15 | 2016-05-04 | 刘上中 | Flow-stabilizing alloy plate |
-
2015
- 2015-03-20 CN CN201520159760.7U patent/CN204593371U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546527A (en) * | 2016-01-15 | 2016-05-04 | 刘上中 | Flow-stabilizing alloy plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180802 Address after: 100082 Beijing Haidian District Xizhimen North Street 42 energy saving building 15 Floor China Environmental Protection Group Co., Ltd. Co-patentee after: Chengde Huan Neng Power Co., Ltd. Patentee after: China Environment Protection Group Co Ltd Address before: 067000 Taiping Village South of Dashi temple, Shuangqiao District, Chengde, Hebei Patentee before: Chengde Huan Neng Power Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20200320 |