CN205299509U - Opposed firing boiler cooling system - Google Patents
Opposed firing boiler cooling system Download PDFInfo
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- CN205299509U CN205299509U CN201521006701.2U CN201521006701U CN205299509U CN 205299509 U CN205299509 U CN 205299509U CN 201521006701 U CN201521006701 U CN 201521006701U CN 205299509 U CN205299509 U CN 205299509U
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Abstract
The utility model discloses an opposed firing boiler cooling system, include the at least a pair of cyclone burner on wall, the back wall before the boiler that sets up, be provided with a tuber pipe of one -to -one with it in the cyclone burner, cyclone burner on preceding wall, the back wall has at least two -layerly, a pair of respectively with the big bellows of preceding wall, back wall intercommunication, big bellows both ends are provided with the secondary air duct air door, its characterized in that, still include with the cooling tuber pipe of cyclone burner one -to -one, the cooling tuber pipe include both ends be provided with air damper and with the female pipe of cooling air, cooling air branch pipe and shut -off valve that the secondary air duct air door links to each other, cooling air branch pipe one end with one time tuber pipe elbow department is connected, the other end with the female pipe of cooling air is connected, the shut -off valve is installed on the cooling air branch pipe, the utility model discloses can effectively prevent tuber pipe of combustor and spout scaling loss.
Description
Technical field
This utility model relates to field of boilers, especially a kind of Opposite Firing Boiler.
Background technology
At current existing opposed firing pulverized-coal fired boiler, in boiler operatiopn, can a certain layer even multilayer combustion device be generally stop transport, the pulverized coal channel that these burners are corresponding is to close, First air is not had to pass in burner primary air piping, now the primary air piping of this grate firing burner and coal dust spout are under the calcination of furnace high-temperature flue gas about 1100 DEG C, it is easy to scaling loss. If taking out air stoppage in transit burner primary air piping is cooled down, then can reduce preheater air intake, make exhaust gas temperature raise, reduce boiler efficiency.
Utility model content
This utility model provides a kind of face-fired boiler cooling system, adopt the mode of the external cooling air pipeline of burner primary air piping, cooling medium adopts routine to pass into the hot secondary wind in big bellows, when burner is stopped transport, by cooling air pipeline, secondary wind is passed in burner primary air piping, and sprayed in stove by First air spout, thus reaching the effect that burner primary air piping and spout are cooled down, can effectively prevent primary air piping and spout scaling loss.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of face-fired boiler cooling system, it is arranged at boiler front wall 1 including at least one pair of, turbulent burner 3 on rear wall 2, primary air piping elbow 4 one to one with it it is provided with in described turbulent burner 3, front wall 1, turbulent burner 3 on rear wall 2 has at least two-layer, a pair respectively with front wall 1, the big bellows 7 of rear wall 2 connection, described big bellows 7 two ends are provided with secondary air duct air door 6, it is characterized in that, also include and described turbulent burner 3 cooling duct 5 one to one, described cooling duct 5 includes two ends and is provided with damper 54 and the cooling air mother's pipe 51 being connected with described secondary air duct air door 6, cooling air arm 52 and shut-off valve 53, described cooling air arm 52 one end is connected with described primary air piping 4, the other end is connected with described cooling air mother's pipe 51, described shut-off valve 53 is arranged on described cooling air arm 52.
Preferably, described cooling air arm 52 one end is connected with described primary air piping 4 elbow.
The beneficial effects of the utility model: by utilizing secondary wind as cooling air; managed by the cooling air mother of big inner bellows and cooling air arm introduces burner; this kind of mode not only can have been protected stoppage in transit burner primary air piping and spout but also will not increase burner hearth and leak out, and namely will not reduce boiler efficiency.
Accompanying drawing explanation
Fig. 1 is side view of the present utility model;
Fig. 2 is the cooling duct schematic diagram of the single burner of this utility model;
Fig. 3 is the primary air piping cooling schematic diagram of every grate firing burner of the present utility model.
Being labeled as in figure: 1-front wall, wall after 2-, 3-turbulent burner, 4-primary air piping, 5-cooling duct, 51-cooling air mother manages, 52-cooling air arm, 53-shut-off valve, 54-damper, 6-secondary air duct air door, the big bellows of 7-.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in further detail, but embodiment of the present utility model is not limited to this, in the ken that skilled artisan possesses, it is also possible to make various change under the premise without departing from this utility model objective.
As shown in Figures 1 to 3, a kind of face-fired boiler cooling system, it is arranged at boiler front wall 1 including at least one pair of, turbulent burner 3 on rear wall 2, primary air piping 4 one to one it are provided with it in 3 in described turbulent burner, front wall 1, turbulent burner 3 on rear wall 2 has at least two-layer, a pair respectively with front wall 1, the big bellows 7 of rear wall 2 connection, described big bellows 7 two ends are provided with secondary air duct air door 6, it is characterized in that, also include and described turbulent burner 3 cooling duct 5 one to one, described cooling duct 5 includes two ends and is provided with damper 54 and the cooling air mother's pipe 51 being connected with described secondary air duct air door 6, cooling air arm 52 and shut-off valve 53, described cooling air arm 52 one end is connected with described primary air piping 4, the other end is connected with described cooling air mother's pipe 51, described shut-off valve 53 is arranged on described cooling air arm 52.
Described cooling air arm 52 one end is connected with described primary air piping 4 elbow, and mainly elbow is easier to connect with cooling air arm.
Utility model works principle is, primary air piping 4 at every turbulent burner 3 connects one-step cooling wind arm 52, cooling air arm 52 is connected with the cooling air mother's pipe 51 in big bellows 7, cooling air mother's pipe 51 two ends are connected with secondary air duct air door 6 by damper 54, the every grate firing burner cooling air quantity of damper 54 scalable, the cooling air arm 52 of single burner is provided with shut-off valve 53, the time marquis that burner is stopped transport, open the shut-off valve 53 on cooling air arm 52, the conventional part secondary wind entered in big bellows 7 changes by introducing in burner primary air piping 4 by cooling air mother's pipe, reach the effect to burner primary air piping 4 cooling, when burner is properly functioning, the shut-off valve 53 on cooling air arm 52 cuts out, it is prevented that the breeze airflow in primary air piping 4 passes in cooling duct 5, be also prevented from secondary wind equally and be mixed in First air air-flow.
Claims (2)
1. a face-fired boiler cooling system, it is arranged at boiler front wall (1) including at least one pair of, turbulent burner (3) on rear wall (2), primary air piping (4) one to one it are provided with it in described turbulent burner (3), front wall (1), turbulent burner (3) on rear wall (2) has at least two-layer, a pair respectively with front wall (1), the big bellows (7) that rear wall (2) connects, described big bellows (7) two ends are provided with secondary air duct air door (6), it is characterized in that, also include and described turbulent burner (3) cooling duct one to one (5), described cooling duct (5) includes two ends and is provided with damper (54) and cooling air mother pipe (51) being connected with described secondary air duct air door (6), cooling air arm (52) and shut-off valve (53), described cooling air arm (52) one end is connected with described primary air piping (4), the other end is managed (51) with described cooling air mother and is connected, described shut-off valve (53) is arranged on cooling air arm (52).
2. face-fired boiler cooling system according to claim 1, it is characterised in that described cooling air arm (52) one end is connected with described primary air piping (4) elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521006701.2U CN205299509U (en) | 2015-12-08 | 2015-12-08 | Opposed firing boiler cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521006701.2U CN205299509U (en) | 2015-12-08 | 2015-12-08 | Opposed firing boiler cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205299509U true CN205299509U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201521006701.2U Active CN205299509U (en) | 2015-12-08 | 2015-12-08 | Opposed firing boiler cooling system |
Country Status (1)
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| CN (1) | CN205299509U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140433A (en) * | 2018-08-21 | 2019-01-04 | 煤科院节能技术有限公司 | A kind of bipyramid preventing primary air piping overheating deforming is against coal powder injection powder burner |
| CN110287561A (en) * | 2019-06-14 | 2019-09-27 | 国电南京电力试验研究有限公司 | One kind stopping standby burner low-temperature flue gas cooling system and its Parameters design |
| CN111207390A (en) * | 2019-12-06 | 2020-05-29 | 华北电力科学研究院有限责任公司 | Opposed firing boiler and temperature deviation adjusting method thereof |
| CN111520704A (en) * | 2019-02-01 | 2020-08-11 | 三菱日立电力系统株式会社 | BFG burner device, operation method thereof and boiler provided with BFG burner device |
| CN112902148A (en) * | 2021-01-22 | 2021-06-04 | 浙江浙能中煤舟山煤电有限责任公司 | Boiler combustion system |
| CN113007699A (en) * | 2021-03-22 | 2021-06-22 | 江苏西铭节能环保科技有限公司 | Combustion optimization energy-saving environment-friendly system of opposed swirl combustion boiler |
-
2015
- 2015-12-08 CN CN201521006701.2U patent/CN205299509U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140433A (en) * | 2018-08-21 | 2019-01-04 | 煤科院节能技术有限公司 | A kind of bipyramid preventing primary air piping overheating deforming is against coal powder injection powder burner |
| CN109140433B (en) * | 2018-08-21 | 2024-04-19 | 北京天地融创科技股份有限公司 | Double-cone reverse-injection pulverized coal burner capable of preventing primary air pipe from overheat deformation |
| CN111520704A (en) * | 2019-02-01 | 2020-08-11 | 三菱日立电力系统株式会社 | BFG burner device, operation method thereof and boiler provided with BFG burner device |
| CN110287561A (en) * | 2019-06-14 | 2019-09-27 | 国电南京电力试验研究有限公司 | One kind stopping standby burner low-temperature flue gas cooling system and its Parameters design |
| CN110287561B (en) * | 2019-06-14 | 2023-05-26 | 国能南京电力试验研究有限公司 | Low-temperature flue gas cooling system of standby combustor and parameter design method thereof |
| CN111207390A (en) * | 2019-12-06 | 2020-05-29 | 华北电力科学研究院有限责任公司 | Opposed firing boiler and temperature deviation adjusting method thereof |
| CN111207390B (en) * | 2019-12-06 | 2021-11-16 | 华北电力科学研究院有限责任公司 | Opposed firing boiler and temperature deviation adjusting method thereof |
| CN112902148A (en) * | 2021-01-22 | 2021-06-04 | 浙江浙能中煤舟山煤电有限责任公司 | Boiler combustion system |
| CN113007699A (en) * | 2021-03-22 | 2021-06-22 | 江苏西铭节能环保科技有限公司 | Combustion optimization energy-saving environment-friendly system of opposed swirl combustion boiler |
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