CN203036631U - Cooling device of boiler revert system - Google Patents
Cooling device of boiler revert system Download PDFInfo
- Publication number
- CN203036631U CN203036631U CN 201220643748 CN201220643748U CN203036631U CN 203036631 U CN203036631 U CN 203036631U CN 201220643748 CN201220643748 CN 201220643748 CN 201220643748 U CN201220643748 U CN 201220643748U CN 203036631 U CN203036631 U CN 203036631U
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- Prior art keywords
- dipleg
- cooling device
- boiler
- steel pipe
- revert system
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Abstract
The utility model discloses a cooling device of a boiler revert system, which comprises a separation chamber and a dipleg, and is characterized in that water jackets are arranged on the inner sides of the dipleg and the separation chamber, and the two ends of the water jackets are connected with two annular headers respectively. A main purpose is that revert ash in the dipleg is cooled to avoid secondary combustion and coking of the revert ash.
Description
Technical field
The utility model relates to a kind of water-cooling apparatus, especially a kind of cooling device of high speed CFBB revert system.
Background technology
The load of CFBB and returning charge amount are closely bound up, and the stable operation of revert system is most important to boiler so.Though the coal adaptability of CFBB is wide, but some coal, low as the anthracite fugitive constituent, the phosphorus content height, when entering material returning device, unburnt carbon generation second-time burning is easy to cause high-temperature coking and blowing out, so just limit the exit gas temperature of burner hearth, also limited exerting oneself of boiler.
Summary of the invention
The purpose of this utility model is to provide a kind of cooling device of boiler revert system.
The boiler that has is provided with for the separation chamber that will not have abundant combustion fuel and flue gas to separate, the below, separation chamber is dipleg, as design water collar and then can solve not the abundant fuel of fuel carries out second-time burning in the separation chamber problem, guarantee flue gas temperature of hearth outlet, improve the Load Regulation ability of boiler, guarantee boiler safety stable operation.
At dipleg and inboard, separation chamber water collar is set, described water collar two ends are connected with following annular header with last annular header respectively.Main purpose is the returning charge ash in the cooling dipleg, prevents returning charge ash second-time burning coking.
Further, described dipleg 2 is made of steel pipe, and described steel pipe has pin or fin, and the dipleg inwall lays castable refractory.Adorn recirculated water in the steel pipe, can further reduce the internal temperature of dipleg.
Further, dipleg constitutes with the membrane wall pipeline, and the dipleg inwall lays castable refractory.Membrane type tube wall heat absorption efficient is higher than steel pipe.
Further, described two annular headers place the top and bottom of separator and dipleg respectively, and the circulation at its non-place that is heated connects adopts seamless steel pipe.Two ends were conducive to the Natural Circulation of water about the cycle set case placed, and can adopt the forced circulation mode.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the water collar alternate embodiment schematic diagram that the utility model dipleg is made of steel pipe.
Among the figure, 1. separation chamber, 2. dipleg, 3a, 3b. water collar, 4. material returning device, 5. upper collecting chamber, 6. next part case.
The specific embodiment
Embodiment 1: as Fig. 1, at dipleg 2 and 1 inboard, separation chamber water collar 3a, 3b are set, described water collar 3a, 3b two ends are connected with following annular header 6 with last annular header 5 respectively.Main purpose is the returning charge ash in the cooling dipleg, prevents returning charge ash second-time burning coking.
Last annular header and following annular header place the top and bottom of separation chamber 1 and dipleg 2 respectively, and the circulation at its non-place that is heated connects adopts seamless steel pipe.
The water circulation type of cooling has two kinds: the one, and by down-comer and tedge, annular header and drum form the nature water-flow circuit up and down; The 2nd, enter by boiler feedwater, adopt forced circulation, water outlet enters economizer again.
Embodiment 2: as Fig. 2, dipleg 2 is substituted by water collar 3a, the 3b that steel pipe constitutes, and described steel pipe has pin or fin, and dipleg 2 inwalls apply can be if do not establish castable refractory.
Corresponding is that the wall of separation chamber 1 also can adopt steel pipe or membrane type tube wall to constitute.
All the other are with embodiment 1.
Claims (4)
1. the cooling device of a boiler revert system comprises separation chamber, dipleg, it is characterized in that, at dipleg and inboard, separation chamber water collar is set, and described water collar two ends are connected with two annular headers respectively.
2. a kind of cooling device of boiler revert system according to claim 1 is characterized in that described dipleg is made of steel pipe, and described steel pipe has pin or fin, and the dipleg inwall lays castable refractory.
3. a kind of cooling device of boiler revert system according to claim 1 is characterized in that, dipleg constitutes with the membrane wall pipeline, and the dipleg inwall lays castable refractory.
4. a kind of cooling device of boiler revert system according to claim 1 is characterized in that described two annular headers place the top and bottom of separator and dipleg respectively, and the circulation at its non-place that is heated connects adopts seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220643748 CN203036631U (en) | 2012-11-29 | 2012-11-29 | Cooling device of boiler revert system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220643748 CN203036631U (en) | 2012-11-29 | 2012-11-29 | Cooling device of boiler revert system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203036631U true CN203036631U (en) | 2013-07-03 |
Family
ID=48688750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220643748 Expired - Lifetime CN203036631U (en) | 2012-11-29 | 2012-11-29 | Cooling device of boiler revert system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203036631U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795985A (en) * | 2017-11-06 | 2018-03-13 | 南京泰润电力工程有限公司 | A kind of fluidized-bed combustion boiler returning charge, the technique for putting ash |
| CN109654892A (en) * | 2017-10-10 | 2019-04-19 | 中冶长天国际工程有限责任公司 | A kind of device and method monitored and control heat sinter cooling procedure carbon residue burns |
| CN110906321A (en) * | 2019-12-05 | 2020-03-24 | 徐州工业锅炉有限公司 | Circulating fluidized bed boiler comprising water-cooled balance material returning technology |
| CN114135893A (en) * | 2021-10-25 | 2022-03-04 | 国家能源集团国源电力有限公司 | Material returning device and boiler |
-
2012
- 2012-11-29 CN CN 201220643748 patent/CN203036631U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654892A (en) * | 2017-10-10 | 2019-04-19 | 中冶长天国际工程有限责任公司 | A kind of device and method monitored and control heat sinter cooling procedure carbon residue burns |
| CN109654892B (en) * | 2017-10-10 | 2020-05-12 | 中冶长天国际工程有限责任公司 | Device and method for monitoring and controlling residual carbon combustion in cooling process of hot sinter |
| CN107795985A (en) * | 2017-11-06 | 2018-03-13 | 南京泰润电力工程有限公司 | A kind of fluidized-bed combustion boiler returning charge, the technique for putting ash |
| CN110906321A (en) * | 2019-12-05 | 2020-03-24 | 徐州工业锅炉有限公司 | Circulating fluidized bed boiler comprising water-cooled balance material returning technology |
| CN114135893A (en) * | 2021-10-25 | 2022-03-04 | 国家能源集团国源电力有限公司 | Material returning device and boiler |
| CN114135893B (en) * | 2021-10-25 | 2024-04-12 | 国家能源集团国源电力有限公司 | Material returning device and boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
|
| CX01 | Expiry of patent term |