CN2412649Y - Shell type internal circulation fluidized-bed boiler - Google Patents
Shell type internal circulation fluidized-bed boiler Download PDFInfo
- Publication number
- CN2412649Y CN2412649Y CN 00203535 CN00203535U CN2412649Y CN 2412649 Y CN2412649 Y CN 2412649Y CN 00203535 CN00203535 CN 00203535 CN 00203535 U CN00203535 U CN 00203535U CN 2412649 Y CN2412649 Y CN 2412649Y
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- boiler
- smoke pipe
- shell
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Abstract
The utility model relates to a shell type internal circulation fluidized-bed boiler which is composed of a shell (1), fluidized-bed combustion equipment and a boiler chamber, a high-temperature gas solid separator (3), a smoke pipe (4), etc., wherein, the smoke pipe (4) is used as a convection heating surface. The utility model is characterized in that the circumference of the boiler chamber is composed of a cylindrical boiler furnace (2) which is used for bearing the external pressure of working media, the boiler chamber and the smoke pipe (4) are arranged in the shell (1), and the boiler furnace (2) is used as the high-temperature gas solid separator (3). The utility model can strengthen the combustion and the heat exchange, decrease the abrasion of the heat-receiving surface, the size of the utility model is small, and the quick fix can be realized.
Description
The utility model belongs to the Industrial Boiler Technology field, refers in particular to the pan shell type internal circulating fluidized-bed boiler.
In the prior art, the Industrial Boiler burner hearth is made up of water pipe, the burner hearth cross section is a square, the water pipe outer surface is a convection heating surface, used high-temperature separator make by refractory material or refractory material in the middle of the lining play cooling effect with water pipe or steam pipe, burner hearth circumference, convection heating surface circumference, high-temperature separator outer wall have all been built thick and heavy furnace wall.
Above-mentioned prior art exists following defective: 1, the burner hearth of being made up of water pipe, circumference is discontinuous, and is easy to wear.2, square burner hearth, heating surface is inhomogeneous, easily causes the water circulation problem of water screen tube.The square burner hearth is unfavorable for the circulation of gas-solid mixture in the stove, and causes wear problem.3, contain grey airflow scouring festoon and cause serious wear problem.4, thick and heavy furnace wall and insulation high-abrasive material cause the thermal inertia that boiler is very big.When boiler startup running and variable load operation, response speed is very slow.5, the water-tube boiler steel quantity consumption is big, and the manufacturing cost height is bulky, is not suitable for making small-sized CFBB.6, boiler is generally the negative pressure operation, is unfavorable for burning, heat exchange, desulfurization, denitration.
Chinese patent discloses a kind of " pressurized internal circulating fluidized-bed boiler " (94102536 that is used for the hybrid power generation system, substantive examination), comprise a pressure vessel, one is located at a burner hearth and the main fluidized-bed combustion chamber of being with air-diffuser in the pressure vessel, one energy recovery chamber separates with an inclination partition wall and main chamber, one is fluidized the energy recovery chamber that main chamber was sent into and sent to medium, one free space is integrally formed in main chamber and top, energy recovery chamber, and the flue gas of discharging from the energy recovery chamber of main chamber is mixed this space.But this design only is used for electricity generation system.
The purpose of this utility model is to overcome the defective that exists in the prior art, and a kind of pan shell type internal circulating fluidized-bed boiler is provided, and its energy overheavy firing and heat exchange reduces the wearing and tearing of heating surface, and volume is little, can realize fast-assemblingization.
For achieving the above object, the solution that the utility model is taked is: a kind of pan shell type internal circulating fluidized-bed boiler, form by shell, fluidized bed combustion equipment and burner hearth, High Temperature Gas solid separator, smoke pipe etc., smoke pipe is as convection heating surface, it is characterized in that: the circumference of burner hearth is made of the cylindrical shape flue that bears the working medium external pressure, burner hearth, smoke pipe are arranged in the shell, and flue is again as the High Temperature Gas solid separator.
In the utility model, burner hearth, smoke pipe all obtain water cooling in shell, and the high temperature gas-solid separates in flue, circulates, and contain grey air-flow and make parallel baffled in smoke pipe.It compared with prior art has following good effect: 1, the burner hearth of circular cross-section, help heat exchange in the stove, and help the circulation of in-furnace dust particle, help containing grey air-flow by certain requirement rotation.2, be easy to realize pressurized firing, overheavy firing and heat exchange improve the effect of desulfurization, denitration.3, rule, smooth is easily made on flue, smoke pipe surface, can reduce the wearing and tearing of heating surface.4, do not have heavy furnace wall and insulation high-abrasive material, can reduce the thermal inertia of boiler, realize starting fast.5, compact conformation, volume is little, easily realizes fast-assemblingization.
The utility model will be further described below in conjunction with embodiment and accompanying drawing thereof.
Accompanying drawing is the schematic diagram of present embodiment, and A is an emulsion zone among the figure, and B contains grey air-flow for rotation, and C is a dilute-phase zone.
As shown in drawings, a kind of pan shell type internal circulating fluidized-bed boiler, form by shell (1), fluidized bed combustion equipment and burner hearth, High Temperature Gas solid separator (3), smoke pipe (4) etc., smoke pipe (4) is as convection heating surface, it is characterized in that: the circumference of burner hearth is made of the cylindrical shape flue (2) that bears the working medium external pressure, burner hearth, smoke pipe (4) are arranged in the shell (1), and flue (2) is again as High Temperature Gas solid separator (3).This kind High Temperature Gas solid separator (3) also can be called the stove internal cyclone separators owing to combine together with flue (2), and it can realize the furnace high-temperature gas solid separation by necessarily required swirling eddy in stove.
The utility model is a kind of monomer pan shell type internal circulating fluidized-bed boiler.
Claims (1)
1, a kind of pan shell type internal circulating fluidized-bed boiler, form by shell (1), fluidized bed combustion equipment and burner hearth, High Temperature Gas solid separator (3), smoke pipe (4) etc., smoke pipe (4) is as convection heating surface, it is characterized in that: the circumference of burner hearth is made of the cylindrical shape flue (2) that bears the working medium external pressure, burner hearth, smoke pipe (4) are arranged in the shell (1), and flue (2) is again as High Temperature Gas solid separator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203535 CN2412649Y (en) | 2000-02-08 | 2000-02-08 | Shell type internal circulation fluidized-bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203535 CN2412649Y (en) | 2000-02-08 | 2000-02-08 | Shell type internal circulation fluidized-bed boiler |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99219101.7 Division | 1999-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2412649Y true CN2412649Y (en) | 2001-01-03 |
Family
ID=33572200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00203535 Expired - Fee Related CN2412649Y (en) | 2000-02-08 | 2000-02-08 | Shell type internal circulation fluidized-bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2412649Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401468A (en) * | 2010-09-09 | 2012-04-04 | 山东希尔生物质能源有限公司 | Biomass-fueled internal circulation mechanical fluidized bed internal dedusting organic heat carrier boiler |
| CN102430368A (en) * | 2011-09-15 | 2012-05-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Gas-solid double-phase reaction device and gas-solid double-phase reaction technology |
-
2000
- 2000-02-08 CN CN 00203535 patent/CN2412649Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401468A (en) * | 2010-09-09 | 2012-04-04 | 山东希尔生物质能源有限公司 | Biomass-fueled internal circulation mechanical fluidized bed internal dedusting organic heat carrier boiler |
| CN102430368A (en) * | 2011-09-15 | 2012-05-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Gas-solid double-phase reaction device and gas-solid double-phase reaction technology |
| CN102430368B (en) * | 2011-09-15 | 2013-12-25 | 攀钢集团攀枝花钢铁研究院有限公司 | Gas-solid double-phase reaction device and gas-solid double-phase reaction technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |