CN205137410U - Tuber pipe contact heating device of coal -fired pulverized coal boiler unit neighbour stove heat - Google Patents
Tuber pipe contact heating device of coal -fired pulverized coal boiler unit neighbour stove heat Download PDFInfo
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- CN205137410U CN205137410U CN201520939248.4U CN201520939248U CN205137410U CN 205137410 U CN205137410 U CN 205137410U CN 201520939248 U CN201520939248 U CN 201520939248U CN 205137410 U CN205137410 U CN 205137410U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a tuber pipe contact heating device of coal -fired pulverized coal boiler unit neighbour stove heat, including first boiler, second boiler and contact tuber pipe, tuber pipe of heat of first boiler and tuber pipe of heat of second boiler are connected to the contact tuber pipe, be provided with a n isolated door on the contact tuber pipe, wherein n is integer n1. This tuber pipe contact heating device of coal -fired pulverized coal boiler unit neighbour stove heat: fundamentally solved the problem that traditional start -up exists, the boiler that starts directly can be satisfied the demand to the requirement of wind pressure and wind -warm syndrome to wind of heat of adjacent stove, the quick clean boot of realization unit, save time and the start -up cost that the unit starts greatly, the fast and stable of unit starts the load fluctuation who has also reduced the electric wire netting, the security that improves the electric wire netting simultaneously. Overall structure is simple, and the practicality is strong, easily uses widely.
Description
Technical field
The utility model relates to boiler controller system applied technical field, is specially a kind of coal-fired pulverized-coal fired boiler unit adjacent stove heat primary air tube contact heater.
Background technology
The startup of current coal-fired pulverized-coal fired boiler unit all adopts the auxiliary steam of adjacent boiler to add heat primary air by steam air heater and delivers to and start coal pulverizer and carry out warm mill and start, by the restriction of steam air heater self heat exchange efficiency and adjacent stove auxiliary steam temperature, hot blast temperature is often on the low side, be difficult to meet coal pulverizer start fast, thus have influence on the startup of unit overall safety and stability in time, and then it is stable to have influence on network load.
When adjacent stove heat primary air is not got in touch with, hot blast needed for boiler startup relies on cold wind and adjacent unit auxiliary steam of coming to carry out heat exchange at steam air heater and obtains, and this operation startup Problems existing is as follows:
1. a cold wind and adjacent stove auxiliary steam relatively low at the heat exchange efficiency of steam air heater heat exchange, cold wind heating-up time long, wind-warm syndrome also unit that cannot realize on the low side normally starts fast, and the phenomenon that wind-warm syndrome cannot meet powder process demand unit starting difficulty is also there will be when coal-fired moisture is bigger than normal, cause auxiliary steam to waste high in cost of production problem needed for large, unit starting process.
2. network load also can be caused to fluctuate when unit starts and occurs difficulty in starting or cannot normally start under traditional mode, affect electricity net safety stable.
Utility model content
The purpose of this utility model is to provide a kind of coal-fired pulverized-coal fired boiler unit adjacent stove heat primary air tube contact heater, and then solves the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of coal-fired pulverized-coal fired boiler unit adjacent stove heat primary air tube contact heater, comprises the first boiler, the second boiler and contact airduct; Described contact airduct connects the heat primary air pipe of the first boiler and the heat primary air pipe of the second boiler; Described contact airduct is provided with n isolation door, wherein n is Integer n 1.
Preferably, burner, boiler furnace, boiler air preheater, heat primary air pipe, primary air fan, steam air heater, startup coal pulverizer and non-start up coal pulverizer is provided with in described first boiler and the second boiler; Described startup coal pulverizer is all communicated with heat primary air pipe with non-start up coal pulverizer, and described startup coal pulverizer is connected to the burner on boiler furnace by coal pipe; Described steam air heater is arranged on heat primary air pipe, and described steam air heater is connected with boiler air preheater by heat primary air pipe, and described boiler air preheater one end is connected to primary air fan by primary air piping.Preferably, described startup coal pulverizer is be connected to coal pulverizer corresponding to ignition layer of burner by coal pipe.
Preferably, described steam air heater is provided with at least one in boiler.
Preferably, described steam air heater is connected with station-service auxiliary steam end and hydrophobic diffusion container end pipeline.
Preferably, described non-start up coal pulverizer is more than one, and the hot air interface on non-start up coal pulverizer is all connected on heat primary air pipe, and wherein the quantity of non-start up coal is generally determined according to boiler controller system capacity.
Preferably, described burner is multiple, and is located at four angles of boiler furnace or is located at the front-back wall of boiler furnace, and this type of boiler combustion mode being wherein located at four angles of boiler furnace is called corner tangential firing.
Compared with prior art, the beneficial effects of the utility model are: this coal-fired pulverized-coal fired boiler unit adjacent stove heat primary air tube contact heater:
1. fundamentally solve tradition and start Problems existing, the heat primary air of adjacent stove directly can be satisfied the demand the requirement to primary air pressure and wind-warm syndrome of the boiler that starts, realizes the fast and safely startup of unit.
2. greatly save time and the start-up cost of unit starting, the fast and stable of unit starts the load fluctuation decreasing electrical network simultaneously, improves the security of electrical network.
3. overall structure is simple, practical, is easy to promote the use of.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
In figure: the first boiler 1, second boiler 2, contact airduct 3, heat primary air pipe 4, isolation door 5, burner 6, boiler furnace 7, boiler air preheater 8, primary air fan 9, steam air heater 10, startup coal pulverizer 11, non-start up coal pulverizer 12.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of coal-fired pulverized-coal fired boiler unit adjacent stove heat primary air tube contact heater, comprises the first boiler 1, second boiler 2 and contact airduct 3; Described contact airduct 3 connects the heat primary air pipe 4 of the first boiler and the heat primary air pipe 4 of the second boiler; Described contact airduct 3 is provided with n isolation door 5, wherein n is Integer n 1.
Burner 6, boiler furnace 7, boiler air preheater 8, heat primary air pipe 4, primary air fan 9, steam air heater 10, startup coal pulverizer 11 and non-start up coal pulverizer 12 is provided with in described first boiler 1 and the second boiler 2, described startup coal pulverizer 11 is all communicated with heat primary air pipe 4 with non-start up coal pulverizer 12, described non-start up coal pulverizer 12 is more than one, and the hot air interface on non-start up coal pulverizer 12 is all connected on heat primary air pipe 4, described startup coal pulverizer 11 is be connected to coal pulverizer corresponding to ignition layer of burner 6 by coal pipe, described startup coal pulverizer 11 is connected to the burner 6 on boiler furnace 7 by coal pipe, described burner 6 is multiple, and be located at four angles of boiler furnace 7 or the front-back wall of boiler furnace, this type of boiler combustion mode being wherein located at four angles of boiler furnace is called corner tangential firing, described steam air heater 10 is arranged on heat primary air pipe 4, described steam air heater 10 is provided with at least one in boiler, described steam air heater 10 is connected with station-service auxiliary steam end and hydrophobic diffusion container end pipeline, described steam air heater 10 is connected with boiler air preheater 8 by heat primary air pipe 4, and described boiler air preheater 8 one end is connected to primary air fan 9 by primary air piping 4.In the utility model and prior art, scheme traditionally starts, when coal-fired moisture is lower, each startup needs about 4 hours time, the each start-up cost of unit of single-machine capacity 300MW is up to hundreds of thousands, and due to current electric power relative saturation, thermal power generation unit mediates increased frequency when network load changes, if traditional scheme startup causes larger waste before still adopting, and within adopting coal-fired pulverized-coal fired boiler unit adjacent stove heat primary air pipeline contact heating technique device to start adjacent stove time shorten to 1 hour, and start-up cost is very low, single starts expectation and can save hundreds thousand of, the economic benefits comparison brought is obvious, there is good application value.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and improvement design thereof and replace or change, all should be encompassed in protection domain of the present utility model.
Claims (7)
1. a coal-fired pulverized-coal fired boiler unit adjacent stove heat primary air tube contact heater, is characterized in that: comprise the first boiler, the second boiler and contact airduct; Described contact airduct connects the heat primary air pipe of the first boiler and the heat primary air pipe of the second boiler; Described contact airduct is provided with n isolation door, wherein n is Integer n 1.
2. coal-fired pulverized-coal fired boiler unit according to claim 1 adjacent stove heat primary air tube contact heater, is characterized in that: be provided with burner, boiler furnace, boiler air preheater, heat primary air pipe, primary air fan, steam air heater, startup coal pulverizer and non-start up coal pulverizer in described first boiler and the second boiler; Described startup coal pulverizer is all communicated with heat primary air pipe with non-start up coal pulverizer, and described startup coal pulverizer is connected to the burner on boiler furnace by coal pipe; Described steam air heater is arranged on heat primary air pipeline, and described steam air heater is connected with boiler air preheater by heat primary air pipeline, and described boiler air preheater one end is connected to primary air fan by First air pipeline.
3. coal-fired pulverized-coal fired boiler unit according to claim 2 adjacent stove heat primary air tube contact heater, is characterized in that: described startup coal pulverizer is be connected to coal pulverizer corresponding to ignition layer of burner by coal pipe.
4. coal-fired pulverized-coal fired boiler unit according to claim 2 adjacent stove heat primary air tube contact heater, is characterized in that: described steam air heater is provided with at least one in boiler.
5. coal-fired pulverized-coal fired boiler unit according to claim 2 adjacent stove heat primary air tube contact heater, is characterized in that: described steam air heater is connected with station-service auxiliary steam end and hydrophobic diffusion container end pipeline.
6. coal-fired pulverized-coal fired boiler unit according to claim 2 adjacent stove heat primary air tube contact heater, it is characterized in that: described non-start up coal pulverizer is more than one, and the hot air interface on non-start up coal pulverizer is all connected on heat primary air pipe.
7. coal-fired pulverized-coal fired boiler unit according to claim 2 adjacent stove heat primary air tube contact heater, is characterized in that: described burner is multiple, and is located at four angles of boiler furnace or is located at the front-back wall of boiler furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520939248.4U CN205137410U (en) | 2015-11-23 | 2015-11-23 | Tuber pipe contact heating device of coal -fired pulverized coal boiler unit neighbour stove heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520939248.4U CN205137410U (en) | 2015-11-23 | 2015-11-23 | Tuber pipe contact heating device of coal -fired pulverized coal boiler unit neighbour stove heat |
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| Publication Number | Publication Date |
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| CN205137410U true CN205137410U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520939248.4U Expired - Fee Related CN205137410U (en) | 2015-11-23 | 2015-11-23 | Tuber pipe contact heating device of coal -fired pulverized coal boiler unit neighbour stove heat |
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| CN (1) | CN205137410U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043918A (en) * | 2019-04-18 | 2019-07-23 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | A kind of adjacent stove heating activation system with steam air heater |
| CN110332524A (en) * | 2019-08-20 | 2019-10-15 | 烟台龙源电力技术股份有限公司 | Boiler system |
| CN115218207A (en) * | 2022-06-27 | 2022-10-21 | 广州中电荔新热电有限公司 | Boiler and starting method thereof |
-
2015
- 2015-11-23 CN CN201520939248.4U patent/CN205137410U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043918A (en) * | 2019-04-18 | 2019-07-23 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | A kind of adjacent stove heating activation system with steam air heater |
| CN110043918B (en) * | 2019-04-18 | 2024-04-02 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | Adjacent furnace heating starting system with air heater |
| CN110332524A (en) * | 2019-08-20 | 2019-10-15 | 烟台龙源电力技术股份有限公司 | Boiler system |
| CN110332524B (en) * | 2019-08-20 | 2024-01-09 | 烟台龙源电力技术股份有限公司 | Boiler system |
| CN115218207A (en) * | 2022-06-27 | 2022-10-21 | 广州中电荔新热电有限公司 | Boiler and starting method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |