CN201521949U - Low-rate top exhaust high-temperature cyclone separation circulating fluidized bed boiler - Google Patents
Low-rate top exhaust high-temperature cyclone separation circulating fluidized bed boiler Download PDFInfo
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- CN201521949U CN201521949U CN2009202590065U CN200920259006U CN201521949U CN 201521949 U CN201521949 U CN 201521949U CN 2009202590065 U CN2009202590065 U CN 2009202590065U CN 200920259006 U CN200920259006 U CN 200920259006U CN 201521949 U CN201521949 U CN 201521949U
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- temperature
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Abstract
The utility model relates to a low-rate top exhaust high-temperature cyclone separation circulating fluidized bed boiler comprising a boiler wall, a low-speed integral hearth, a separator, a steam drum, a high-low temperature overheater, a high-low temperature coal economizer, a primary air preheater, a secondary air preheater, a refeed valve and a refeed pipe. A wind chamber is arranged below the low temperature integral hearth; a wind distribution plate and a buried pipe are arranged above the wind chamber; the bottom part of the separator is connected with that of the low-speed integral hearth through the refeed valve and the refeed pipe; and the separator is a top exhaust high-temperature cyclone separator. A hearth outlet of the low-rate top exhaust high-temperature cyclone separation circulating fluidized bed boiler adopts the low-rate top exhaust high-temperature cyclone separation structure, which has the thermal efficiency 10-15 percentage point higher than other low-rate separators; and the low-rate top exhaust high-temperature cyclone separation circulating fluidized bed boiler has the characteristics of high separation and combustion efficiency, long service period, low coal consumption and the like, and is applicable to industrial production.
Description
Technical field
Utility model relates to a kind of fluidized-bed combustion boiler, and the spy is a steam discharge high temperature cyclonic separation CFBB on a kind of low range.
Background technology
At present, CFBB can be divided into two schools substantially: high speed bed---high flow rate, high magnification CFBB; Low speed bed---low flow velocity, low circulation fluidized bed boiler.Bed mostly adopts the powerful steam discharge high temperature cyclone separator structure that goes up at a high speed, and domesticly low speed bedly generally all adopt high temperature to separate to separate with middle temperature, separator type has square separator, multitube separator, leaf window separator, grooved separator is arranged, " U " type sedimentation separation etc., but above separator, efficiency separator is low, generally have only 40%～70%, separating particles does not directly enter boiler tail and causes the solid incomplete combustion loss, the thin grey phosphorus content of afterbody is up to 15～30%, and boiler thermal output hangs down 70～80%.
The utility model content
The purpose of this utility model be to overcome the deficiency of prior art and a kind of separation, efficiency of combustion height are provided, wearing and tearing are little, the coal applicability is wide, steam discharge high temperature cyclonic separation CFBB on the low low range of coal consumption.
The purpose of this utility model is achieved by following technical proposals:
Steam discharge high temperature cyclonic separation CFBB on a kind of low range, comprise furnace wall, the whole burner hearth of low speed, separator, drum, high and low temperature superheater, high and low temperature economizer, one-level, secondary air preheater, returning charge valve and refeed line, the below of the whole burner hearth of described low temperature is provided with air compartment, the top of described air compartment is provided with air distribution plate and pipe laying, described separator bottom is connected with the bottom of refeed line with the whole burner hearth of low speed by the returning charge valve, and described separator is last exhaust high temperature cyclone separator.
Owing to adopt aforesaid way, the utlity model has following advantage:
Furnace outlet adopt to be gone up steam discharge high temperature cyclonic separation, and separative efficiency is up to 98%, and the 50um particle all can separate, and separation temperature reaches about 900 ℃, and it is good that separation of material melts down the circulating combustion condition, and fine grained combustion property is good; Low range totally reduces than high magnification recirculating fluidized bed separation of material, and the interior secondary of separator is raised the watchman's clapper phenomenon and solved substantially, and the separator wearing and tearing are little, the thin grey phosphorus content of afterbody＜5%, and boiler thermal output is up to 85%～89%; The separative efficiency height, and the furnace outlet temperature than other cyclone separator arrangement high 150 ℃～200 ℃, boiler on-load ability is strong, low circulating ratio, separates revert system high-temperature coking possibility and reduces greatly, the safe and stable operation performance is good.
In sum, steam discharge high temperature cyclone separating structure scheme is higher 10～15 percentage points than other cyclone separator arrangement boiler thermal output of low range on the utility model furnace outlet employing low range, has separation, efficiency of combustion height, and life cycle is long, characteristics such as coal consumption is low are suitable for industrial production.
Description of drawings
Figure is a structural representation of the present utility model.
In the accompanying drawing: the 1-air compartment, 2-air distribution plate, 3-pipe laying, 4-furnace wall, the whole burner hearth of 5-low speed, 6-refeed line, 7-returning charge valve, the last steam discharge high temperature cyclone separator of 8-, 9-drum, 10-high temperature superheater, 11-low temperature superheater, 12-high-temperature economizer, 13-low-level (stack-gas) economizer, 14-secondary air preheater, 15-main air preheater.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of steam discharge high temperature cyclonic separation CFBB on the low range is described.
As shown in the figure, steam discharge high temperature cyclonic separation CFBB on a kind of low range, comprise furnace wall 4, the whole burner hearth 5 of low speed, separator, drum 9, high and low temperature superheater 10,11, high and low temperature economizer 12,13, one-level, secondary air preheater 15,14, returning charge valve 7 and refeed line 6, the below of the whole burner hearth 5 of described low temperature is provided with air compartment 1, the top of described air compartment 1 is provided with air distribution plate 2 and pipe laying 3, described separator bottom is connected with the bottom of refeed line 6 with the whole burner hearth 5 of low speed by returning charge valve 7, and described separator is last exhaust high temperature cyclone separator 8.
The utility model furnace outlet adopts low-rate top exhaust high-temperature cyclone separating structure scheme higher 10～15 percentage points than other cyclone separator arrangement boiler thermal output of low range, it is long to have separation, efficiency of combustion height, life cycle, effect of coal saving is remarkable, the characteristics such as the on-load ability is strong are suitable for industrial production.
Claims (1)
1. steam discharge high temperature cyclonic separation CFBB on the low range, comprise furnace wall (4), the whole burner hearth (5) of low speed, separator, drum (9), high, low temperature superheater (10), (11), high, low-level (stack-gas) economizer (12), (13), one-level, secondary air preheater (15), (14), returning charge valve (7) and refeed line (6), the below of the whole burner hearth of described low temperature (5) is provided with air compartment (1), the top of described air compartment (1) is provided with air distribution plate (2) and pipe laying (3), described separator bottom is connected with the bottom of refeed line (6) with the whole burner hearth of low speed (5) by returning charge valve (7), and it is characterized in that: described separator is a last exhaust high temperature cyclone separator (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202590065U CN201521949U (en) | 2009-10-28 | 2009-10-28 | Low-rate top exhaust high-temperature cyclone separation circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202590065U CN201521949U (en) | 2009-10-28 | 2009-10-28 | Low-rate top exhaust high-temperature cyclone separation circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521949U true CN201521949U (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202590065U Expired - Fee Related CN201521949U (en) | 2009-10-28 | 2009-10-28 | Low-rate top exhaust high-temperature cyclone separation circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521949U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438439A (en) * | 2013-08-26 | 2013-12-11 | 上海交通大学 | Organic working medium boiler for coal-water slurry clean combustion |
| CN103512029A (en) * | 2013-10-14 | 2014-01-15 | 上海交通大学 | Organic working medium boiler for combustion of coal-fired fluidized bed |
| CN103528049A (en) * | 2013-10-14 | 2014-01-22 | 上海交通大学 | Biomass-coal water slurry co-fired organic working medium boiler |
| CN103528054A (en) * | 2013-10-14 | 2014-01-22 | 上海交通大学 | Municipal sludge-coal water slurry co-fired organic working medium boiler |
| CN103557518A (en) * | 2013-10-14 | 2014-02-05 | 上海交通大学 | Organic working medium boiler for coal washery sludge combustion |
| CN103912880A (en) * | 2014-04-08 | 2014-07-09 | 上海交通大学 | Industrial organic waste treatment and reutilization method |
-
2009
- 2009-10-28 CN CN2009202590065U patent/CN201521949U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438439A (en) * | 2013-08-26 | 2013-12-11 | 上海交通大学 | Organic working medium boiler for coal-water slurry clean combustion |
| CN103438439B (en) * | 2013-08-26 | 2016-05-04 | 上海交通大学 | The organic working medium boiler of water-coal-slurry clean combustion |
| CN103512029A (en) * | 2013-10-14 | 2014-01-15 | 上海交通大学 | Organic working medium boiler for combustion of coal-fired fluidized bed |
| CN103528049A (en) * | 2013-10-14 | 2014-01-22 | 上海交通大学 | Biomass-coal water slurry co-fired organic working medium boiler |
| CN103528054A (en) * | 2013-10-14 | 2014-01-22 | 上海交通大学 | Municipal sludge-coal water slurry co-fired organic working medium boiler |
| CN103557518A (en) * | 2013-10-14 | 2014-02-05 | 上海交通大学 | Organic working medium boiler for coal washery sludge combustion |
| CN103528049B (en) * | 2013-10-14 | 2016-02-10 | 上海交通大学 | The organic working medium boiler of living beings-water-coal-slurry multifuel combustion |
| CN103512029B (en) * | 2013-10-14 | 2016-02-10 | 上海交通大学 | The organic working medium boiler of coal-fired fluidized bed burning |
| CN103557518B (en) * | 2013-10-14 | 2016-02-10 | 上海交通大学 | The organic working medium boiler of slime burning |
| CN103528054B (en) * | 2013-10-14 | 2016-02-10 | 上海交通大学 | The organic working medium boiler of municipal sludge-water-coal-slurry multifuel combustion |
| CN103912880A (en) * | 2014-04-08 | 2014-07-09 | 上海交通大学 | Industrial organic waste treatment and reutilization method |
| CN103912880B (en) * | 2014-04-08 | 2016-07-13 | 上海交通大学 | A kind of industrial organic wastes processes and reuse method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20171028 |