CN201582804U - Tangential-circle swirl combustion equipment of industrial pulverized-coal fired boiler - Google Patents
Tangential-circle swirl combustion equipment of industrial pulverized-coal fired boiler Download PDFInfo
- Publication number
- CN201582804U CN201582804U CN2009202689884U CN200920268988U CN201582804U CN 201582804 U CN201582804 U CN 201582804U CN 2009202689884 U CN2009202689884 U CN 2009202689884U CN 200920268988 U CN200920268988 U CN 200920268988U CN 201582804 U CN201582804 U CN 201582804U
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- China
- Prior art keywords
- powder feeding
- feeding pipe
- nozzle
- boiler
- nozzles
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- 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 - Lifetime
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- 239000003245 coal Substances 0.000 title claims abstract description 30
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 48
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000002817 coal dust Substances 0.000 description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Abstract
The embodiment of the utility model discloses tangential-circle swirl combustion equipment of an industrial pulverized-coal fired boiler, which includes a main powder feeding pipe, a secondary air duct, nozzles, two auxiliary powder feeding pipes and a secondary fan, wherein the main powder feeding pipe enters into a hearth and then is divided into the two auxiliary powder feeding pipes arranged along two sides of the hearth, two of the nozzles are arranged on each side of each of the two auxiliary powder feeding pipes arranged oppositely, the direction of each front nozzle is opposite to that of each back nozzle on the side of the opposite auxiliary powder feeding pipe, and the positions of the four nozzles form a square. The four corner tangential combustion manner achieves high fullness degree of the hearth, and has the advantages of good degree of fullness, great disturbance, facilitation in complete combustion and discharge of low-oxynitride compounds, etc. The equipment has low investment cost, few components, simple installation, low maintenance load and capability of regulation according to the conditions of the boiler body.
Description
Technical field
The utility model relates to boiler plant and makes the field, more particularly, relates to a kind of industrial coal powder boiler tangent line circle whirlpool combustion apparatus.
Background technology
Industrial Boiler payes attention to improving boiler thermal output and soot emissions two large problems up to standard always in the process of development.Existing coal-dust combustion device mainly is to use on the large-sized boiler in generating, be used on the industrial coal powder boiler coal-dust combustion device seldom, be the coal burner that is used for kiln mostly.
Present stage, coal burner generally was divided into two kinds: turbulent burner and DC burner, parallel flow burner is to utilize the combination of direct jet and jet to come the device of combusting coal fines, be divided into according to combustion system: flat flame combustion system, U-shaped flame combustion mode and W shape flame combustion mode, the furnace cavity that this burner needs is very big, is mainly used on the generating large-sized boiler.Spiral coal powder burner is to utilize swirling eddy to be formed with to be beneficial to the recirculating zone and the air-flow that catch fire to mix the device that strong characteristics are come combusting coal fines.Coal dust is carried from burner by a wind and sprays in the stove, secondary wind forms swirling eddy via cyclone, flow out behind the spout in be formed centrally the recirculating zone, entrainment the interior high-temperature flue gas of stove near burner outlet, heating and firing coal-dust, and secondary wind constantly mixes with a wind, combustion process is constantly developed, until after-flame.
But shortcomings such as cost is higher, equipment is complicated, nozzle wear is serious, maintenance workload is big, coal adaptability difference that existing coal burner exists.
The utility model content
In view of this, the utility model provides a kind of industrial coal powder boiler tangent line circle whirlpool combustion apparatus, with solve coal burner exist cost than higher, equipment is complicated, nozzle wear is serious, maintenance workload is big and shortcoming such as coal adaptability difference, the boiler efficiency that makes improves, save coal resource, reduced the discharging of pollutant.
For achieving the above object, the utility model provides following technical scheme:
A kind of industrial coal powder boiler tangent line circle whirlpool combustion apparatus, comprise: main powder feeding pipe, secondary air channel, nozzle, secondary powder feeding pipe and overfire air fan, described main powder feeding pipe enters and is divided into two secondary powder feeding pipe in the burner hearth, arrange along the burner hearth both sides, every side is provided with two nozzles on relative described secondary powder feeding pipe, the direction of the nozzle in each the place ahead is relative with the direction of the nozzle at the rear of relative secondary powder feeding pipe, and the position of four nozzles constitutes square.
Preferably, above-mentioned industrial coal powder boiler tangent line circle whirlpool combustion apparatus, the direction and the angle between the secondary powder feeding pipe of described the place ahead nozzle are 37 °, the angle between rear nozzle and the secondary powder feeding pipe is 53 °.
Preferably, above-mentioned industrial coal powder boiler tangent line circle whirlpool combustion apparatus was provided with secondary air channel on the described main powder feeding pipe before burner hearth, and described secondary air channel one end links to each other with overfire air fan.
From above-mentioned technical scheme as can be seen, the utility model embodiment has the following advantages:
The combustion system of quadrangle tangential circle, it is good to have a burner hearth degree of filling, advantages such as disturbance is big, help burning, low nitrogen oxide discharging;
This equipment investment cost is low, and parts are few, installation is simple, maintenance load is little, and can regulate according to the boiler body situation;
This combustion system makes coal dust form tangential firing, improved the burn-off rate of coal dust, and made burning more stable, this technological break-through the technical barrier of small-sized coal burner combustion instability.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The industrial coal powder boiler tangent line that Fig. 1 provides for the utility model embodiment is justified the structural representation of whirlpool combustion apparatus.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model discloses a kind of industrial coal powder boiler tangent line circle whirlpool combustion apparatus, with solve coal burner exist cost than higher, equipment is complicated, nozzle wear is serious, maintenance workload is big and shortcoming such as coal adaptability difference, the boiler efficiency that makes improves, save coal resource, reduced the discharging of pollutant.
See also Fig. 1, the industrial coal powder boiler tangent line that Fig. 1 provides for the utility model embodiment is justified the structural representation of whirlpool combustion apparatus.
Wherein 1 is main powder feeding pipe, and 2 is secondary air channel, and 31,32,33 and 34 are nozzle, and 41 and 42 is secondary powder feeding pipe, and 5 is blower fan, and 6 is burner hearth.
Main powder feeding pipe 1 enters and is divided into two secondary powder feeding pipe 41 and 42 in the burner hearth 6, arrange along burner hearth 6 both sides, every side is provided with two nozzles on relative secondary powder feeding pipe, the direction of the nozzle in each the place ahead is relative with the direction of the nozzle at the rear of relative secondary powder feeding pipe, and the position of four nozzles constitutes square.On each secondary powder feeding pipe 41,42, respectively there is the position of two nozzles 31 and 32,33 and 34, four nozzles 31,32,33,34 to constitute square.
In addition, be provided with secondary air channel 2 on the main powder feeding pipe 1 before entering burner hearth, the one end links to each other with overfire air fan 5.
The direction of the nozzle 31,33 in the place ahead and the angle between the secondary powder feeding pipe 41,42 are 37 °, and the nozzle 32,34 at rear and the angle between the secondary powder feeding pipe 41,42 are 53 °.
The combustion system of quadrangle tangential circle, it is good to have a burner hearth degree of filling, advantages such as disturbance is big, help burning, low low nitrogen oxide discharging.
This equipment investment cost is low, and parts are few, installation is simple, maintenance load is little, and can regulate according to the boiler body situation.
The combustion system of independent development makes coal dust form tangential firing, has improved the burn-off rate of coal dust, and has made burning more stable, the technical barrier of the small-sized coal burner combustion instability of this technological break-through.
Can be furnished with automatic control system, automatic igniting, blowout protection, the primary and secondary air that can realize boiler matches well and multiple function such as automatic combustion adjustment, realized that the automatic control technology of coal-burning boiler is broken through.
The utlity model has that equipment investment cost is low, parts are few, installation is simple, maintenance load is little, flameholding, and the advantage that can regulate according to the boiler body situation.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (3)
1. an industrial coal powder boiler tangent line is justified the whirlpool combustion apparatus, it is characterized in that, comprise: main powder feeding pipe, secondary air channel, nozzle, secondary powder feeding pipe and overfire air fan, described main powder feeding pipe enters and is divided into two secondary powder feeding pipe in the burner hearth, arrange along the burner hearth both sides, every side is provided with two nozzles on relative described secondary powder feeding pipe, and the direction of the nozzle in each the place ahead is relative with the direction of the nozzle at the rear of relative secondary powder feeding pipe, and the position of four nozzles constitutes square.
2. industrial coal powder boiler tangent line circle whirlpool combustion apparatus as claimed in claim 1 is characterized in that the direction and the angle between the secondary powder feeding pipe of described the place ahead nozzle are 37 °, and the angle between rear nozzle and the secondary powder feeding pipe is 53 °.
3. industrial coal powder boiler tangent line circle whirlpool combustion apparatus as claimed in claim 1 is characterized in that be provided with secondary air channel on the described main powder feeding pipe before burner hearth, described secondary air channel one end links to each other with overfire air fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202689884U CN201582804U (en) | 2009-10-28 | 2009-10-28 | Tangential-circle swirl combustion equipment of industrial pulverized-coal fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202689884U CN201582804U (en) | 2009-10-28 | 2009-10-28 | Tangential-circle swirl combustion equipment of industrial pulverized-coal fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201582804U true CN201582804U (en) | 2010-09-15 |
Family
ID=42724805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202689884U Expired - Lifetime CN201582804U (en) | 2009-10-28 | 2009-10-28 | Tangential-circle swirl combustion equipment of industrial pulverized-coal fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201582804U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351027A (en) * | 2020-03-25 | 2020-06-30 | 济南黄台煤气炉有限公司 | Annular cutting feeding burner of cyclone furnace |
| CN111351029A (en) * | 2020-03-25 | 2020-06-30 | 济南黄台煤气炉有限公司 | Annular tangential feeding burner of cyclone furnace |
| CN112902153A (en) * | 2021-03-26 | 2021-06-04 | 西安热工研究院有限公司 | System for solving overtemperature problem of water cooling wall of four-corner tangential supercritical boiler |
-
2009
- 2009-10-28 CN CN2009202689884U patent/CN201582804U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351027A (en) * | 2020-03-25 | 2020-06-30 | 济南黄台煤气炉有限公司 | Annular cutting feeding burner of cyclone furnace |
| CN111351029A (en) * | 2020-03-25 | 2020-06-30 | 济南黄台煤气炉有限公司 | Annular tangential feeding burner of cyclone furnace |
| CN112902153A (en) * | 2021-03-26 | 2021-06-04 | 西安热工研究院有限公司 | System for solving overtemperature problem of water cooling wall of four-corner tangential supercritical boiler |
| CN112902153B (en) * | 2021-03-26 | 2022-08-23 | 西安热工研究院有限公司 | System for solving overtemperature problem of water cooling wall of four-corner tangential supercritical boiler |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yanan City, Shandong province Qingdao City Road 266314 No. 39 Patentee after: Qingdao Clear Environmental Protection Boiler Engineering Co., Ltd. Address before: Yanan City, Shandong province Qingdao City Road 266314 No. 39 Patentee before: Qingdao Clear Environmental Protection Boiler Engineering Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |
|
| CX01 | Expiry of patent term |