CN203413656U - Structure for improving ignition performance of coal-fired boiler - Google Patents
Structure for improving ignition performance of coal-fired boiler Download PDFInfo
- Publication number
- CN203413656U CN203413656U CN201320446649.7U CN201320446649U CN203413656U CN 203413656 U CN203413656 U CN 203413656U CN 201320446649 U CN201320446649 U CN 201320446649U CN 203413656 U CN203413656 U CN 203413656U
- Authority
- CN
- China
- Prior art keywords
- coal
- boiler
- pipeline
- ignition performance
- air preheater
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Air Supply (AREA)
Abstract
The utility model discloses a structure for improving ignition performance of a coal-fired boiler. The boiler comprises a combustor, wherein the combustor is connected with a coal mill; the coal mill is connected with an air pre-heater through a pipeline; an air inlet pipeline is arranged at the other end of the air pre-heater; the air pre-heater is connected with an adjacent boiler air pre-heater of an adjacent boiler; an air outlet pipe is arranged on the adjacent boiler air pre-heater; a connecting pipe is arranged between the air outlet pipe and the pipeline and is provided with a connecting baffle; the air inlet pipeline is connected with a fan; a pipeline baffle is arranged in the air inlet pipeline. According to the structure, the ignition performance of the coal-fired boiler can be effectively improved.
Description
Technical field
The utility model relates to energy-saving and emission-reduction field, power station, particularly large-scale power station coal-burning boiler ignition performance is carried out to improved structure.
Background technology
Improve boiler efficiency, significant to improving economy of power plant.Improve at present the main path of boiler efficiency for improving boiler combustion efficiency, improve three large blower fan operational efficiency etc., but pay attention to not enough to improving boiler cold-state ignition effectiveness.Although adopted at present micro oil ignition system, plasma ignition system etc., just carried out the improvement of equipment, the ignition condition of coal dust is not paid attention to.
In pulverized coal ignition process, no matter be fuel ignition, plasma ignition or other modes, all need to consume a large amount of energy.Yet condition do not meet or other factors impacts under, once igniting is often unsuccessful, repeatedly igniting has consumed large energy especially.Improve ignition effectiveness, reduce igniting number of times, significant to reducing large-sized boiler energy consumption.
Coal powder ignition relates to following factor, comprises coal dust temperature, coal dust moisture, air themperature, coal powder density etc.When boiler cold-state starts at present, directly utilize cold wind to enter coal pulverizer and carry coal dust, by pulverized coal channel, enter burner and light a fire.This kind of mode, not only coal dust temperature is low, and the moisture in fire coal also fails to be dried in time, has seriously reduced ignition effectiveness, or has increased igniting number of times.
Utility model content
The purpose of this utility model is to provide a kind of structure that can effectively improve coal-burning boiler ignition performance.
For achieving the above object, the utility model adopts following technical scheme.A kind of structure that improves coal-burning boiler ignition performance, boiler is provided with burner, burner connects coal pulverizer, coal pulverizer is connected by pipeline with air preheater, this air preheater other end is provided with intake stack, the adjacent stove air preheater that also connects adjacent boiler, this neighbour's stove air preheater is provided with discharge pipe, is provided with this liaison tube of liaison tube and is provided with contact baffle plate between this discharge pipe and pipeline.This intake stack connecting fan.In this intake stack, be provided with pipeline baffle plate.
The beneficial effects of the utility model are: by contact pipeline, boiler operation hot blast is introduced in stove coal pulverizer to be started, made coal dust be dried, heat up, for pulverized coal ignition has been created advantage.This invention has important practical value, energy-saving and cost-reducing significant to large coal-fired power plant.This invention is optimized boiler cold-state ignition condition, has improved ignition effectiveness, has reduced igniting number of times, and this invention response has simultaneously reduced the exhaust gas temperature of adjacent stove, also contributes to the lifting of the adjacent efficiency of furnace.This invention Cheap highly effective, simple and easy to do, may extend among all coal-fired units in the whole nation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of structure that improves coal-burning boiler ignition performance of the utility model, boiler is provided with burner 1, and burner 1 connects coal pulverizer 2, and coal pulverizer 2 is connected by pipeline 8 with air preheater 6, this air preheater other end is provided with intake stack 10, it focuses on, and also connects the adjacent stove air preheater 7 of adjacent boiler, and this neighbour's stove air preheater 7 is provided with discharge pipe 9, between this discharge pipe 9 and pipeline 8, be provided with liaison tube 3, this liaison tube 3 is provided with contact baffle plate 4.Utilize above-mentioned liaison tube 3 hot blast of adjacent boiler can be introduced, the coal dust in coal pulverizer is dried, for pulverized coal ignition creates favorable conditions.And, can control by 3 pairs of intake volumes of contact baffle plate, to obtaining best effect.
In addition, this intake stack 10 can also and connecting fan (not shown) and is provided with pipeline baffle plate 5 in this intake stack 10, by this pipeline baffle plate 5, control the wind air quantity that air inlet fan provides, coordinate liaison tube and contact baffle plate, realize best efficiency of combustion.
The scheme of this case, although structure is simple, but be skillfully constructed, key is, can to existing power plant, transform very easily, and only need to increase a liaison tube can realize, this point is extremely important, it can, in the situation that transformation is very little, effectively improves ignition effectiveness, thereby promote the efficiency of whole power plant.
Its detailed process is as follows.
1) between two adjacent stove air preheaters, install contact pipeline 3 additional, in contact pipeline 3, be furnished with contact baffle plate 4.
2) by adjusting, get in touch with baffle plate 4 boiler operation hot blast is sent in boiler tubing 8 to be started, at this, need to pay close attention to boiler operation wind-warm syndrome situation.
3) by adjusting, get in touch with baffle plate 4 and pipeline baffle plate 5, rationally control coal pulverizer 2 wind powder outlet temperatures.
4) wind vermicelli part ignition condition is optimized, and enters burner 1 and lights a fire.
Claims (3)
1. a structure that improves coal-burning boiler ignition performance, boiler is provided with burner (1), burner (1) connects coal pulverizer (2), coal pulverizer (2) is connected by pipeline (8) with air preheater (6), this air preheater other end is provided with intake stack (10), it is characterized in that, the adjacent stove air preheater (7) that also connects adjacent boiler, this neighbour's stove air preheater (7) is provided with discharge pipe (9), is provided with this liaison tube of liaison tube (3) (3) and is provided with contact baffle plate (4) between this discharge pipe (9) and pipeline (8).
2. the structure of raising coal-burning boiler ignition performance as claimed in claim 1, is characterized in that, this intake stack (10) connecting fan.
3. the structure of raising coal-burning boiler ignition performance as claimed in claim 2, is characterized in that, is provided with pipeline baffle plate (5) in this intake stack (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320446649.7U CN203413656U (en) | 2013-07-25 | 2013-07-25 | Structure for improving ignition performance of coal-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320446649.7U CN203413656U (en) | 2013-07-25 | 2013-07-25 | Structure for improving ignition performance of coal-fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203413656U true CN203413656U (en) | 2014-01-29 |
Family
ID=49976544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320446649.7U Expired - Fee Related CN203413656U (en) | 2013-07-25 | 2013-07-25 | Structure for improving ignition performance of coal-fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203413656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112295677A (en) * | 2020-08-28 | 2021-02-02 | 华电电力科学研究院有限公司 | System and method for realizing cold-state quick start of steel ball coal mill |
-
2013
- 2013-07-25 CN CN201320446649.7U patent/CN203413656U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112295677A (en) * | 2020-08-28 | 2021-02-02 | 华电电力科学研究院有限公司 | System and method for realizing cold-state quick start of steel ball coal mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201974061U (en) | Heat recuperation device for combustion gas heating furnace | |
| CN203413656U (en) | Structure for improving ignition performance of coal-fired boiler | |
| CN203642146U (en) | Boiler with regenerative chamber | |
| CN103471366A (en) | Energy-saving and environmentally-friendly air source biomass drying system | |
| CN202835424U (en) | Superconducting flue gas waste heat recovery combustion-supporting system | |
| CN202902244U (en) | Horizontal single-furnace-liner fire pipe type pulverized coal boiler | |
| CN202973184U (en) | Multi-purpose full-automatic biomass particle fuel overflow furnace capable of cooking, heating and bathing | |
| CN202040826U (en) | Heat-storage type coal power online heater | |
| CN202007237U (en) | Coal injection and pulverization flue gas system for blast furnace | |
| CN102607286A (en) | Molten salt furnace afterheat power-generation and combustion comprehensive utilizing system | |
| CN102889585A (en) | Environment-friendly energy-saving vertical boiling boiler | |
| CN202063885U (en) | Structure preventing tar from condensing on biomass gas transfer pipeline | |
| CN201748632U (en) | Multi-functional hot blast stove | |
| CN204756992U (en) | Boiler flue gas air system | |
| CN201340218Y (en) | Flue type waste heat recovery device | |
| CN203478212U (en) | Energy-saving combined combustion boiler | |
| CN205208551U (en) | A boiler structure for burning remove dust in middle of gangue | |
| CN204757367U (en) | Hot -air furnace | |
| CN203489304U (en) | Preheater system of pulverized coal boiler | |
| CN103697450B (en) | Regenerator boiler | |
| CN201611099U (en) | Cremator | |
| CN102252529A (en) | Heat recovery equipment for gas heating furnace | |
| CN203419945U (en) | Hot-blast stove provided with high-temperature flues and low-temperature flues | |
| CN203605263U (en) | Air pre-heater single-row configuration structure of 660MW ultra-supercritical boiler | |
| CN202757467U (en) | System for comprehensively utilizing waste heat of salt melting furnace for power generation and combustion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP NORTH CHI Free format text: FORMER NAME: NORTH CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100120 Beijing city Xicheng District Street No. 24 Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Address before: 100120 Beijing city Xicheng District Street No. 24 Patentee before: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group |
|
| 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: 20140129 |