CN108592017A - A kind of cinerary device for circulating fluidized bed boiler - Google Patents
A kind of cinerary device for circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN108592017A CN108592017A CN201810262942.5A CN201810262942A CN108592017A CN 108592017 A CN108592017 A CN 108592017A CN 201810262942 A CN201810262942 A CN 201810262942A CN 108592017 A CN108592017 A CN 108592017A
- Authority
- CN
- China
- Prior art keywords
- ash
- coil pipe
- grey cylinder
- pipe
- fluidized bed
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/24—Devices for removal of material from the bed
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The present invention relates to Circulating Fluidized Bed Boiler Equipment technical fields, a kind of specially cinerary device for circulating fluidized bed boiler, it can absorb the heat of returning charge ash, it automatically controls and puts ash, improve security reliability, it includes putting grey cylinder, described put at the top of grey cylinder is ash inlet, bottom is ash hole, it is characterized in that, it is described to put grey cylinder and be made of the sealed connection plate between external heat-exchanging coil pipe and the pipe seam of the external heat-exchanging coil pipe, electronic Ash valve is installed at the ash inlet for putting grey cylinder, described put is equipped with internal heat coil pipe in grey cylinder, external heat-exchanging coil pipe one end is inlet, the other end stretches into described put and connects internal heat coil pipe one end in grey cylinder, the internal heat coil pipe other end puts grey cylinder as liquid outlet through described, it is passed through cooling liquid in the external heat-exchanging coil pipe and the internal heat coil pipe.
Description
Technical field
The present invention relates to Circulating Fluidized Bed Boiler Equipment technical field, specially a kind of putting for circulating fluidized bed boiler
Apparatus for ash.
Background technology
Technology of Circulating Fluidized Bed Boiler is the efficient, clean-burning technology developed rapidly at present.It is ciculation fluidized
Relatively conventional failure is coking in bed boiler operatiopn, can directly influence the safety and economic operation of boiler.Wherein, material returning device
Coking is the most important thing entirely recycled.If lime-ash is accumulated excessively in material returning device, local lime-ash can be caused to block, coking,
Increase abrasion, reduces boiler thermal efficiency, the serious consequence of unit outage can be caused when serious.
The ash of putting of present China recirculating fluidized bed material returning device is frequently a kind of abnormal phenomenon, because reasonable design
CFB boiler, returning charge amount are matched with internal circulating load, need not frequently put ash.For this problem, there are many problems, such as
Boiler bed temperature is relatively low, coal adaptability is poor, load regulation range reduces（Especially underrun is difficult）, material return blower contribute
The reasons such as deficiency, boiler design defect, bed material excessive addition.Design, the operation of circulating fluidized bed boiler all need constantly to be accumulated
Experience is gone perfect.Present circulating fluidized bed boiler is that interim dust leg is arranged at material returning device or puts grey cylinder, usually basic place
It in closed state, needs manually to open, the grey mobility of heat is high when putting ash, easily causes the personal injury of operator.
Invention content
In order to solve not accomplishing recycling heat and automatically control to put ash, the problem of security reliability difference, the present invention provides
A kind of cinerary device for circulating fluidized bed boiler, can absorb the heat of returning charge ash, automatically control and put ash, improve peace
Full reliability.
Its technical solution is such：A kind of cinerary device for circulating fluidized bed boiler comprising grey cylinder is put, it is described
It is ash inlet to put at the top of grey cylinder, bottom is ash hole, which is characterized in that described to put grey cylinder by external heat-exchanging coil pipe and the outside
Sealed connection plate between the pipe seam of heat exchange coil is constituted, and electronic Ash valve is equipped at the ash inlet for putting grey cylinder, described
It puts and internal heat coil pipe is installed in grey cylinder, external heat-exchanging coil pipe one end is that inlet, the other end stretch into and described put grey cylinder
Interior connection internal heat coil pipe one end, the internal heat coil pipe other end put grey cylinder as liquid outlet, institute through described
It states in external heat-exchanging coil pipe and the internal heat coil pipe and is passed through cooling liquid.
It is further characterized by the external heat-exchanging coil pipe is membrane type coil pipe；
The ash inlet is connected into ash bucket, and the electronic Ash valve is set at the top of ash bucket；
The ash hole connects out ash bucket, and loose ash pipe is installed on the out ash bucket side wall, and the pine ash pipe is connected by air hose
It connects and loosens wind wind turbine.
After device using the present invention, electronic Ash valve automatically opens when putting ash, when by putting grey cylinder with external heat-exchanging disk
Pipe and the contact of internal heat coil pipe exchange heat, and absorb the heat of returning charge ash, and lime-ash carries out ash discharge again after being cooled down, improve
Security reliability.
Description of the drawings
Fig. 1 is front view of the present invention；
Fig. 2 is internal structure schematic diagram of the present invention.
Specific implementation mode
See Fig. 1, shown in Fig. 2, a kind of cinerary device for circulating fluidized bed boiler comprising put grey cylinder 1, put grey cylinder 1
Top is connected into ash bucket 2 as ash inlet, bottom connection out ash bucket 3 as ash hole, puts grey cylinder 1 by 4 He of external heat-exchanging coil pipe
Sealed connection plate 5 between the pipe seam of external heat-exchanging coil pipe 4 is constituted, and being tightly connected plate 5 can effectively prevent lime-ash to be changed from outside
Leaked out between the pipe seam of hot coil 4, into ash bucket 2 at electronic Ash valve 6 is installed, may be implemented to automatically control and put ash manipulation, put
Internal heat coil pipe 7 is installed, 4 one end of external heat-exchanging coil pipe is inlet 11, the other end stretches into put in grey cylinder 1 and connect in grey cylinder 1
7 one end of internal heat coil pipe is connect, 7 other end of internal heat coil pipe is used as liquid outlet 12, external heat-exchanging coil pipe 4 through out ash bucket 3
With cooling liquid is passed through in internal heat coil pipe 7, generally use cooling water.External heat-exchanging coil pipe 4 uses membrane type coil pipe；Out ash bucket
Loose ash pipe 8 is installed on 3 side walls, loose ash pipe 8 is connected by air hose 9 loosens wind wind turbine 10, here uses roots blower, passes through
The loosening wind of loose ash pipe 8 can effectively prevent lime-ash to be blocked in out ash bucket 3.13 be loosening wind control valve in figure.
Due to increasing the coil pipe of heat exchange, lime-ash can be cooled down, when boiler operatiopn can be automatic in real time according to operating mode
It adjusts into stove returning charge ash quantity, easily adjusts boiler combustion and safe and reliable.Following benefit can specifically be brought：1. adjusting bed
Temperature can arbitrarily adjust boiler combustion bed temperature by adjusting stove circulating ash quantity is entered；2. adjusting load（Underrun）, boiler
Load span section is big, by putting ash, easily realizes compared with underload（About 30% boiler load）Operation；It, can 3. coal adaptability is strong
To use the larger fuel of ash content, fuel tolerance increases；4. recycling heat, efficiency is improved：The heat of returning charge ash can be absorbed
Realize other utilization；5. high degree of automation, safe and reliable operation, boiler operatiopn is stablized, and is not in that burner hearth collapses grey phenomenon；6.
Without manually putting ash, personal injury is avoided；7. reducing abrasion, by reducing into ashes amount, it is possible to reduce in-furnace dust concentration reduces
Heating surface wear.
Claims (4)
1. a kind of cinerary device for circulating fluidized bed boiler comprising put grey cylinder, described put at the top of grey cylinder is ash inlet, bottom
Portion is ash hole, which is characterized in that described to put grey cylinder by between external heat-exchanging coil pipe and the pipe seam of the external heat-exchanging coil pipe
It is tightly connected plate to constitute, electronic Ash valve is installed at the ash inlet for putting grey cylinder, described put is equipped with inside in grey cylinder and changes
Hot coil, external heat-exchanging coil pipe one end is inlet, the other end stretches into described put and connects the internal heat disk in grey cylinder
Pipe one end, the internal heat coil pipe other end put grey cylinder as liquid outlet through described, the external heat-exchanging coil pipe with it is described
Cooling liquid is passed through in internal heat coil pipe.
2. a kind of cinerary device for circulating fluidized bed boiler according to claim 1, which is characterized in that the outside
Heat exchange coil is membrane type coil pipe.
3. a kind of cinerary device for circulating fluidized bed boiler according to claim 1, which is characterized in that described into ash
Mouth is connected into ash bucket, and the electronic Ash valve is set at the top of ash bucket.
4. a kind of cinerary device for circulating fluidized bed boiler according to claim 1, which is characterized in that the ash discharge
Mouth connects out ash bucket, and loose ash pipe is installed on the out ash bucket side wall, and the pine ash pipe passes through air hose and connects loosening wind wind turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262942.5A CN108592017A (en) | 2018-03-28 | 2018-03-28 | A kind of cinerary device for circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262942.5A CN108592017A (en) | 2018-03-28 | 2018-03-28 | A kind of cinerary device for circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108592017A true CN108592017A (en) | 2018-09-28 |
Family
ID=63624912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810262942.5A Pending CN108592017A (en) | 2018-03-28 | 2018-03-28 | A kind of cinerary device for circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108592017A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074365A (en) * | 2021-03-08 | 2021-07-06 | 国家能源集团国源电力有限公司 | External bed of circulating fluidized bed boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201439949U (en) * | 2009-07-13 | 2010-04-21 | 北京中科通用能源环保有限责任公司 | Cold ash device |
| CN102748753A (en) * | 2012-07-19 | 2012-10-24 | 青岛松灵电力环保设备有限公司 | Soot cooler |
| CN203671888U (en) * | 2013-12-11 | 2014-06-25 | 广东能大新能源发展有限公司 | Multi-circulation heat absorption energy-saving boiler |
| JP2014211255A (en) * | 2013-04-18 | 2014-11-13 | 有限会社長岡鉄工所 | Solid fuel combustion device and boiler device |
| CN208504376U (en) * | 2018-03-28 | 2019-02-15 | 无锡华光锅炉股份有限公司 | Cinerary device for circulating fluidized bed boiler |
-
2018
- 2018-03-28 CN CN201810262942.5A patent/CN108592017A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201439949U (en) * | 2009-07-13 | 2010-04-21 | 北京中科通用能源环保有限责任公司 | Cold ash device |
| CN102748753A (en) * | 2012-07-19 | 2012-10-24 | 青岛松灵电力环保设备有限公司 | Soot cooler |
| JP2014211255A (en) * | 2013-04-18 | 2014-11-13 | 有限会社長岡鉄工所 | Solid fuel combustion device and boiler device |
| CN203671888U (en) * | 2013-12-11 | 2014-06-25 | 广东能大新能源发展有限公司 | Multi-circulation heat absorption energy-saving boiler |
| CN208504376U (en) * | 2018-03-28 | 2019-02-15 | 无锡华光锅炉股份有限公司 | Cinerary device for circulating fluidized bed boiler |
Non-Patent Citations (1)
| Title |
|---|
| 杨建华: "《循环流化床锅炉设备及运行》", 中国电力出版社, pages: 153 - 156 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074365A (en) * | 2021-03-08 | 2021-07-06 | 国家能源集团国源电力有限公司 | External bed of circulating fluidized bed boiler |
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