CN2760398Y - A fluid bed boiler - Google Patents
A fluid bed boiler Download PDFInfo
- Publication number
- CN2760398Y CN2760398Y CN 200420121229 CN200420121229U CN2760398Y CN 2760398 Y CN2760398 Y CN 2760398Y CN 200420121229 CN200420121229 CN 200420121229 CN 200420121229 U CN200420121229 U CN 200420121229U CN 2760398 Y CN2760398 Y CN 2760398Y
- Authority
- CN
- China
- Prior art keywords
- hot gas
- ignition device
- burner hearth
- boiler
- gas ignition
- 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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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a fluid bed boiler which comprises a hearth (1), a hot smoke-gas igniter (2), a gas-solid separator (3) and a refeeding device (4), wherein a gas inlet pipeline of the hot smoke-gas igniter (2) is connected with the hearth (1) by a flexible expansion joint (6). By adopting the method, the hearth is connected with the hot smoke-gas igniter flexibly, the heat deformation of the hearth does not affect the gas inlet pipeline of the hot smoke-gas igniter, therefore the boiler can not be damaged because of the stress of heat deformation, and the service life of the hot smoke-gas igniter and the hearth can be extended.
Description
Technical field
The utility model relates to a kind of fluidized-bed combustion boiler, specifically, relates to its hot gas ignition device.
Background technology
Fluidized-bed combustion boiler is lighted a fire by the hot gas ignition device.Because boiler produces high temperature in when burning, burner hearth generation thermal deformation makes the admission line generation relative displacement of burner hearth and hot gas ignition device, and the admission line that causes the hot gas ignition device is in stress and impaired always.For fear of this distortion, in general fluidized-bed combustion boiler, all be that the admission line of hot gas ignition device and the burner hearth of boiler are taked rigid attachment, and the unsteady employing constant force spring of the other end of admission line is lifted on the mode on the supporting construction of boiler.This mode, when constant force spring is selected when incorrect, it is inconsistent that admission line and burner hearth produce expansion, still can not avoid the admission line generation relative displacement of burner hearth and hot gas ignition device fully, so that the admission line of hot gas ignition device can be in stress and cause destroying when boiler combustion, need often it to be keeped in repair.
The utility model content
Problem to be solved in the utility model provides a kind of fluidized-bed combustion boiler, its objective is the burner hearth that improves boiler and the admission line draw bail of hot gas ignition device, avoids causing boiler impaired because of the thermal expansion of burner hearth.
To achieve these goals, fluidized-bed combustion boiler provided by the utility model comprises burner hearth, hot gas ignition device, gas-solid separator, material returning device, adopts the flexible expansion joint to connect between the admission line of described hot gas ignition device and the burner hearth.
The intake stack of described hot gas ignition device and the supporting construction of boiler are taked rigid attachment.
Adopt said method, burner hearth connects for flexible with the intake stack of hot gas ignition device, the thermal deformation of burner hearth no longer influences the intake stack of hot gas ignition device, so boiler can not damage because thermal deformation is stressed, has prolonged the service life of hot gas ignition device and burner hearth.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Number in the figure is: 1, burner hearth, 2, the hot gas ignition device, 3, gas-solid separator, 4, material returning device, 5, admission line, 6, the flexible expansion joint, 7, supporting construction.
The specific embodiment
Fluidized-bed combustion boiler shown in the drawings comprises burner hearth 1, hot gas ignition device 2, gas-solid separator 3, material returning device 4, adopts flexible expansion joint 6 to connect between the admission line 5 of hot gas ignition device 2 and the burner hearth 1, takes rigid attachment with the supporting construction 7 of boiler.Flexible expansion joint 6 is a maze-type structure, and its material is a structural carbon steel, liner asbestos or other insulation materials.Burner hearth 1 adopts flexible the connection with the admission line 5 of hot gas ignition device 2, the thermal deformation of burner hearth 1 no longer influences the intake stack 5 of hot gas ignition device 2, so the intake stack 5 and the burner hearth 1 of hot gas ignition device 2 can not damage because thermal deformation is stressed, have prolonged the service life of hot gas ignition device 2 and burner hearth 1.
Claims (2)
1, a kind of fluidized-bed combustion boiler, comprise burner hearth (1), hot gas ignition device (2), gas-solid separator (3), material returning device (4), it is characterized in that: adopt flexible expansion joint (6) to connect between the admission line (5) of described hot gas ignition device (2) and the burner hearth (1).
2, according to the described fluidized-bed combustion boiler of claim 1, it is characterized in that: the admission line (5) of described hot gas ignition device (2) adopts rigid attachment with the supporting construction (7) of boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420121229 CN2760398Y (en) | 2004-12-31 | 2004-12-31 | A fluid bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420121229 CN2760398Y (en) | 2004-12-31 | 2004-12-31 | A fluid bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760398Y true CN2760398Y (en) | 2006-02-22 |
Family
ID=36082601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420121229 Expired - Fee Related CN2760398Y (en) | 2004-12-31 | 2004-12-31 | A fluid bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760398Y (en) |
-
2004
- 2004-12-31 CN CN 200420121229 patent/CN2760398Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060222 Termination date: 20111231 |