CN203489260U - Slag cooling device for circulating fluidized bed boiler - Google Patents
Slag cooling device for circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN203489260U CN203489260U CN201320626925.8U CN201320626925U CN203489260U CN 203489260 U CN203489260 U CN 203489260U CN 201320626925 U CN201320626925 U CN 201320626925U CN 203489260 U CN203489260 U CN 203489260U
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- cooling
- slag
- chamber
- cooling device
- overfall
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Abstract
The utility model discloses a slag cooling device for a circulating fluidized bed boiler. The slag cooling device is arranged on left side, right side or rear side of a main hearth of the circulating fluidized bed boiler, and comprises a cooling air chamber, an air cap, a cooling chamber, a slagging pipe, cooling buried pipe and an overflow port, wherein the cooling air chamber is separated away from the cooling chamber through the air cap; one end of the slagging pipe is connected to the other end of the air cap and runs through the cooling air chamber; the overflow port is arranged on the upper side of the cooling chamber and is used for communicating the cooling chamber and the main hearth; and the cooling buried pipe is arranged between the overflow port and the air cap. A cooling device is unnecessary to set in the slag cooling because the cooling device is integrally connected to the hearth, so that the slag cooling device has the beneficial effects of small occupied space, and adjustable cooled slag amount and cooling temperature according to design requirement; and buried pipe heating surface of the cooling device shares a same loop for vapor-water circulation with the main hearth of the boiler, so that an auxiliary system is not required to be configured for the slag cooling device.
Description
Technical field
The utility model relates to boiler technology field, relates in particular to a kind of circulating fluid bed boiler slag cooler.
Background technology
Technology of Circulating Fluidized Bed Boiler is the high-efficiency low-pollution clean burning technology developing rapidly in recent ten years.In the accessory system of CFBB, cooling device is one of the most thorny technological difficulties, the cooling device of the fluidized-bed combustion boiler of domestic introduction causes cooling device not reach the cooling effect of expection owing to existing mechanical breakdown, boiler slag removal to control the factors such as inefficacy and cooling heating surface wear, to power plant, brings very large economic loss.
The current slag cooler of operation, generally can be divided into water-cooled and air-cooled two kinds, and they are autonomous system, exist volume large, and floor space is large, system complex, the defect such as operational reliability is poor, and the cold quantity of slag is few.Along with the increase of CFBB capacity, the calorific value of burning coal reduces, the appearance of especially a large amount of burning gangue boilers, and the quantity of slag enlarges markedly, and general slag cooler cannot meet manufacturing technique requirent.
Summary of the invention
Technical problem to be solved in the utility model is, for the above-mentioned deficiency of prior art, proposes that a kind of volume is little, compact conformation, large, the reliable circulating fluid bed boiler slag cooler of the cold quantity of slag.
The technical scheme that the utility model solves its technical problem employing is, a kind of circulating fluid bed boiler slag cooler is proposed, it is arranged at CFBB main furnace chamber left side, right side or rear side, and it comprises cooling air compartment, blast cap, cooling chamber, slag-discharge pipe, cooling pipe laying, overfall; Described blast cap separates cooling air compartment and cooling chamber, and described slag-discharge pipe one end is connected to the blast cap other end through cooling air compartment, and described overfall is positioned at cooling chamber upside cooling chamber is communicated with main furnace chamber, and described cooling pipe laying is between overfall and blast cap.
Further, described cooling pipe laying is obliquely installed between overfall and blast cap, and described cooling pipe laying heating surface and boiler main burner hearth steam/water circulating the same circuit.
Further, described cooling device and main furnace chamber share a furnace wall, and described overfall is arranged on this shared furnace wall, and the slag in described main furnace chamber and the flue gas of cooling device all pass in and out from overfall.
The utility model is connected as a single entity cooling device and burner hearth, without cooling device being additionally set, having take up room little, the cooling quantity of slag and chilling temperature, can need the beneficial effect regulating according to design.And the pipe laying heating surface of cooling device and boiler main burner hearth steam/water circulating the same circuit, without separately joining auxiliary system.
Accompanying drawing explanation
Fig. 1 is the structural representation of circulating fluid bed boiler slag cooler.
The specific embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
Please refer to Fig. 1, Fig. 1 is the structural representation of the utility model circulating fluid bed boiler slag cooler, in Fig. 1, circulating fluid bed boiler slag cooler is arranged at left side, right side or the rear side of main furnace chamber 1, and comprises cooling air compartment 10, blast cap 20, cooling chamber 30, slag-discharge pipe 40, cooling pipe laying 50, overfall 60; Described blast cap 20 separates cooling air compartment 10 with cooling chamber 30, described slag-discharge pipe 40 one end are connected to blast cap 20 other ends through cooling air compartment 10, described overfall 60 is positioned at cooling chamber 30 upsides cooling chamber 30 is communicated with main furnace chamber 1, and described cooling pipe laying 50 is between overfall 60 and blast cap 20.
The high temperature furnace slag that main furnace chamber 1 produces enters cooling chamber 30 from overfall 60, and high temperature furnace slag is discharged from slag-discharge pipe 40 after cooling pipe laying 50 heat absorptions are cooling.Cooling air compartment 10, is blown into the flue gas of cooling chamber 30 in main furnace chamber 1 by overfall 60 to cooling chamber 30 blowings by blast cap 20.
Preferably, cooling pipe laying 50 is obliquely installed between overfall 60 and blast cap 20.So setting can increase film-cooled heat, the raising cooling effectiveness of cooling pipe laying.And cooling pipe laying heating surface and boiler main burner hearth steam/water circulating the same circuit, therefore without separately joining auxiliary system, fault rate is little, can reduce costs and floor space.
Cooling device and main furnace chamber 1 share a furnace wall 11, and overfall 60 is arranged on this shared furnace wall 11, and the slag of main furnace chamber and the flue gas of cooling device are all from overfall 60 turnover.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (3)
1. a circulating fluid bed boiler slag cooler, is characterized in that: it is arranged at CFBB main furnace chamber left side, right side or rear side, comprises cooling air compartment, blast cap, cooling chamber, slag-discharge pipe, cooling pipe laying, overfall; Described blast cap separates cooling air compartment and cooling chamber, and described slag-discharge pipe one end is connected to the blast cap other end through cooling air compartment, and described overfall is positioned at cooling chamber upside cooling chamber is communicated with main furnace chamber, and described cooling pipe laying is between overfall and blast cap.
2. circulating fluid bed boiler slag cooler according to claim 1, is characterized in that: described cooling pipe laying is obliquely installed between overfall and blast cap, and described cooling pipe laying heating surface and boiler main burner hearth steam/water circulating the same circuit.
3. circulating fluid bed boiler slag cooler according to claim 2, it is characterized in that: described cooling device and main furnace chamber share a furnace wall, described overfall is arranged on this shared furnace wall, and the slag in described main furnace chamber and the flue gas of cooling device all pass in and out from overfall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320626925.8U CN203489260U (en) | 2013-09-27 | 2013-09-27 | Slag cooling device for circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320626925.8U CN203489260U (en) | 2013-09-27 | 2013-09-27 | Slag cooling device for circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203489260U true CN203489260U (en) | 2014-03-19 |
Family
ID=50260091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320626925.8U Expired - Fee Related CN203489260U (en) | 2013-09-27 | 2013-09-27 | Slag cooling device for circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203489260U (en) |
-
2013
- 2013-09-27 CN CN201320626925.8U patent/CN203489260U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20180927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |