CN204730169U - Circulating fluidized bed boiler - Google Patents
Circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN204730169U CN204730169U CN201520460349.3U CN201520460349U CN204730169U CN 204730169 U CN204730169 U CN 204730169U CN 201520460349 U CN201520460349 U CN 201520460349U CN 204730169 U CN204730169 U CN 204730169U
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- CN
- China
- Prior art keywords
- header
- pipe group
- fluidized bed
- separator
- circulating fluidized
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- 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 provides a kind of circulating fluidized bed boiler, comprise burner hearth, pipe group, the first header, the second header, input pipe and efferent duct that separator, flue, drum, multiple pipeline are formed side by side, described separator is connected with described burner hearth, described flue is connected with described separator, and described flue has the horizontal segment be directly connected with described separator and the vertical section to downward-extension be connected with described horizontal segment; Described pipe group is installed in described vertical section, in described vertical section, the position be positioned at below described pipe group is provided with current limiting plate, described current limiting plate offers through hole, one end of described pipe group is communicated with described first header, the other end of described pipe group is communicated with described second header, described drum is communicated with described first header by described input pipe, and described drum is communicated with described second header by described efferent duct.This circulating fluidized bed boiler, can avoid the first header and the second header impaired.
Description
Technical field
The utility model relates to a kind of boiler, specifically, relates to a kind of circulating fluidized bed boiler for exporting steam.
Background technology
Prior art, in circulating fluidized bed boiler, under have a lot of parts to need to be operated in environment that high temperature and high solid particle constantly wash away, the wearing and tearing which results in this boiler plant are very serious.Especially, for transmitting the first header and second header of water to drum, it takies certain volume usually, and in use, washing away of being subject to is also more serious.In addition, in this circulating fluidized bed boiler use procedure, also there is the problem that the pipe group efficiency of heating surface is not high.
Problem existing in prior art, has made to improve this circulating fluidized bed boiler and has become very important.
Utility model content
The technical problems to be solved in the utility model is, for the deficiency existing for prior art, provide a kind of circulating fluidized bed boiler, it can reduce the damage to header, improves flue gas utilization rate.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of circulating fluidized bed boiler, comprise burner hearth, pipe group, the first header, the second header, input pipe and efferent duct that separator, flue, drum, multiple pipeline are formed side by side, described separator is connected with described burner hearth, described flue is connected with described separator, and described flue has the horizontal segment be directly connected with described separator and the vertical section to downward-extension be connected with described horizontal segment; Described pipe group is installed in described flue, the position be positioned in described flue below described pipe group is provided with current limiting plate, described current limiting plate offers through hole, one end of described pipe group is extended by the downside of described flue and is communicated with described first header, the other end of described pipe group is extended by the upside of described flue and is communicated with described second header, described drum is communicated with described first header by described input pipe, and described drum is communicated with described second header by described efferent duct.
Preferably, described through hole is bellmouth, and the aperture of this bellmouth upper end is large, and the aperture of lower end is little.
Preferably, the top of described horizontal segment is provided with the support for supporting described pipe group.
Preferably, described separator is cyclone separator.
Preferably, described pipeline is pipe, and the outer wall of described pipeline is provided with protuberance.
Preferably, described protuberance is triangular prism, and the end face of described triangular prism is vertically installed in the outer wall of described pipeline.
Implement circulating fluidized bed boiler of the present utility model, there is following beneficial effect: the pipe group of this circulating fluidized bed boiler is positioned at flue, the heating of the hard to bear flue gas of energy, and the first header and the second header are all positioned at outside flue, therefore, effectively can avoid constantly washing away by high temperature and high solid particle, extend the service life of this first header and the second header.The effect of current limiting plate is, produces certain stop to flue gas, avoids its too fast discharge, thus extends the heat time to pipe group.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of circulating fluidized bed boiler of the present utility model;
Fig. 2 is in Fig. 1, the schematic top plan view of pipeline.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is further described.
The utility model discloses a kind of circulating fluidized bed boiler, this boiler is for generation of steam and export, and is mainly described with regard to improvement part, does briefly to describe with regard to the part that this circulating fluidized bed boiler is consistent with prior art in the utility model.
With reference to Fig. 1, Fig. 2, a kind of circulating fluidized bed boiler of the present utility model, comprises burner hearth 1, pipe group 7, first header 6, second header 10, input pipe 8 and efferent duct 9 that separator 2, flue 3, drum 5, multiple pipeline 71 are formed side by side.Burner hearth 1, separator 2, flue 3 constitute the main heating part of this circulating fluidized bed boiler, and drum 5, pipe group 7, first header 6, second header 10, input pipe 8 and efferent duct 9 constitute the circulation transport portion of water, aforesaid main heating part is used for heating the circulation transport portion of this water.Drum 5 is connected with steam output pipe 12, for being exported by produced steam.
Separator 2 is connected with burner hearth 1, and this separator 2 is preferably cyclone separator 2.Flue 3 is connected with separator 2, to transmit flue gas, shown in figure, flue 3 has the horizontal segment 31 be directly connected with separator 2 and the vertical section 32 to downward-extension be connected with horizontal segment 31, that is, this horizontal segment 31 is connected directly between on separator 2, and this vertical section 32 by horizontal segment 31 to downward-extension.The below of this flue 3 arranges air-introduced machine, flue gas can be derived by vertical section 32 by air-introduced machine.
The pipe group 7 be made up of multiple pipeline 71 is installed in the vertical section 32 of flue 3, in vertical section 32, the position be positioned at below pipe group 7 is provided with current limiting plate 4, current limiting plate 4 offers through hole 41, this current limiting plate 4 is with the effect of through hole 41 discharge delaying flue gas, make it abundant to the heating of pipe group 7, improve flue gas utilization rate.One end of pipe group 7 is extended by the downside of vertical section 32 and is communicated with the first header 6, the other end of pipe group 7 is extended by the upside of vertical section 32 and is communicated with the second header 10, here, one end of pipe group 7 and the other end are all construed as one end and the other end that multiple pipeline 71 forms.Drum 5 is communicated with the first header 6 by input pipe 8, and drum 5 is communicated with the second header 10 by efferent duct 9.Because the first header 6 and the second header 10 are all positioned at outside flue 3, thus, scrubbing of flue gas and high solid particle can be reduced, extend the life-span of the first header 6 and the second header 10.
As shown in FIG., in the utility model, through hole 41 is bellmouth, and the aperture of this bellmouth upper end is large, and the aperture of lower end is little.This structure, can play better current limitation effect, forms reducing at this current limiting plate 4 place, makes flue gas be postponed to discharge.
As shown in FIG., for the purpose of stay pipe group 7, the top of horizontal segment 31 is provided with the support 11 for stay pipe group 7.This support 11 can be various ways, as long as can be supported in pipe group 7, another effect of this support 11 can be, when after use a period of time, knocks this support 11, the dust be attached in pipe group 7 is come off better.
With reference to Fig. 2, preferably, the pipeline 71 forming pipe group 7 is pipe, and the outer wall of pipeline 71 is provided with protuberance 72.The effect of this protuberance 72 it is possible to flue gas is impacted it, and this impact generating strap can move the slight effect vibrated of pipeline 71, and it constantly can shake off dust.
Preferably, this protuberance 72 is triangular prism, and the end face of triangular prism is vertically installed in the outer wall of pipeline 71.Further, one of them of triangular prism stupefied towards directly over, this triangular prism, can increase shock surface.
The operation principle of the circulating fluidized bed boiler of this utility model is: fuel is in burner hearth 1 combustion, its burning produces high-temperature flue gas, this high-temperature flue gas enters to cyclone separator 2, afterwards, successively via horizontal segment 31 and the vertical section 32 of flue 3, the pipe group 7 being positioned at the vertical section 32 of flue 3 heat by high-temperature flue gas, water in pipe group 7 is also heated, produce steam after this water is heated, the steam that this steam enters in the second header 10, second header 10 enters to drum 5 by efferent duct 9; The water that in drum 5, temperature is lower enters to the first header 6 by input pipe 8, afterwards, enters pipe group 7, is heated in pipe group 7 by high-temperature flue gas.The temperature of the water in drum 5 raises and the raw steam of continuous real estate gradually, when the coolant-temperature gage in drum 5 reaches predetermined value, steam can be exported to the equipment of needs by steam output pipe 12.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. a circulating fluidized bed boiler, it is characterized in that, comprise burner hearth, pipe group, the first header, the second header, input pipe and efferent duct that separator, flue, drum, multiple pipeline are formed side by side, described separator is connected with described burner hearth, described flue is connected with described separator, and described flue has the horizontal segment be directly connected with described separator and the vertical section to downward-extension be connected with described horizontal segment; Described pipe group is installed in described vertical section, in described vertical section, the position be positioned at below described pipe group is provided with current limiting plate, described current limiting plate offers through hole, one end of described pipe group is extended by the downside of described vertical section and is communicated with described first header, the other end of described pipe group is extended by the upside of described vertical section and is communicated with described second header, described drum is communicated with described first header by described input pipe, and described drum is communicated with described second header by described efferent duct.
2. circulating fluidized bed boiler according to claim 1, is characterized in that, described through hole is bellmouth, and the aperture of this bellmouth upper end is large, and the aperture of lower end is little.
3. circulating fluidized bed boiler according to claim 1, is characterized in that, the top of described horizontal segment is provided with the support for supporting described pipe group.
4. circulating fluidized bed boiler according to claim 1, is characterized in that, described separator is cyclone separator.
5. circulating fluidized bed boiler according to claim 1, is characterized in that, described pipeline is pipe, and the outer wall of described pipeline is provided with protuberance.
6. circulating fluidized bed boiler according to claim 5, is characterized in that, described protuberance is triangular prism, and the end face of described triangular prism is vertically installed in the outer wall of described pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460349.3U CN204730169U (en) | 2015-06-30 | 2015-06-30 | Circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460349.3U CN204730169U (en) | 2015-06-30 | 2015-06-30 | Circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204730169U true CN204730169U (en) | 2015-10-28 |
Family
ID=54388515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520460349.3U Expired - Fee Related CN204730169U (en) | 2015-06-30 | 2015-06-30 | Circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204730169U (en) |
-
2015
- 2015-06-30 CN CN201520460349.3U patent/CN204730169U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20190630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |