CN204880099U - Boiler combustion ware nozzle - Google Patents
Boiler combustion ware nozzle Download PDFInfo
- Publication number
- CN204880099U CN204880099U CN201520479849.1U CN201520479849U CN204880099U CN 204880099 U CN204880099 U CN 204880099U CN 201520479849 U CN201520479849 U CN 201520479849U CN 204880099 U CN204880099 U CN 204880099U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- boiler
- bluff body
- body part
- inside casing
- 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
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Abstract
The utility model discloses a boiler combustion ware nozzle, boiler combustion ware nozzle includes nozzle inside casing, nozzle frame, blunt body piece, connect through the gusset between nozzle inside casing, the nozzle frame, the inner wall of nozzle inside casing is provided with joint spare, joint spare with the free expansion of the blunt body can be realized to a blunt body joint, this application burner nozzle, makes the operation that the boiler can the safety and stability, has prolonged the life of burner nozzle, and non - integral type structure is easily changed, the saving cost.
Description
Technical field
The utility model relates to pulverized-coal fired boiler technical field, is specifically related to a kind of boiler-burner nozzle.
Background technology
During boiler operatiopn, for different combustion conditions, wish that breeze airflow can catch fire in time near burner nozzle, if catch fire too early or catch fire too late, the security of boiler and economy are had an impact.So coal burner nozzle is the key of coal powder ignition and smooth combustion, especially for the low volatile such as anthracite, meager coal coal, coal dust catch fire and smooth combustion to the safe operation of boiler and efficiency of combustion most important.
In current domestic and international technology, be directed to First air DC burner, mostly various forms of bluff body is set in the front end of coal burner nozzle, First air is made to form stable recirculating zone in bluff body front, entrainment furnace high-temperature flue gas, make pulverized coal particle be heated to ignition temperature rapidly, play the effect of catching fire in time with smooth combustion.But, residing for First air nozzle, operating mode is more severe, the very high and serious wear of temperature, in current technology, nozzle is mostly that the steel alloy of heat resistant and wear resistant is formed by monoblock cast, and the bluff body arranged in nozzle is all made of one with nozzle, during hot operation, between nozzle member and bluff body part, the temperature difference can reach hundreds of degrees Celsius, the bluff body part swell increment of high-temperature is also greater than the nozzle member of relative low temperature degree, and between the two, differential expansion finally can cause nozzle member to be cracked, and nozzle is damaged; Simultaneously, the bluff body of integrative-structure is in operation and can not does any adjustment, when design coal and actual use coal gap larger time or load variations cause primary air flow to change time, coal dust can be caused not catch fire timely and smooth combustion, make boiler can not safety and economic operation; In addition, because First air air-flow is Dual-Phrase Distribution of Gas olid at a high speed, uneven the washing away of pulverized coal particle causes bluff body concentrated wear seriously even to make bluff body grind off, cause nozzle can not play due effect, and nozzle and bluff body are one, need to change whole nozzle, cause waste economically.
Utility model content
In view of this, the application provides a kind of boiler-burner nozzle, can realize the free wxpansion of bluff body, and boiler is safely and steadily run, and non-Unitary structure is easily changed, cost-saving, solves deficiency of the prior art.
For solving above technical problem, the technical scheme that the utility model provides is a kind of boiler-burner nozzle, described boiler-burner nozzle comprises nozzle inside casing, nozzle housing, bluff body part, link of boards is passed through between described nozzle inside casing, nozzle housing, the inwall of described nozzle inside casing is provided with shackle member, described shackle member and the clamping of described bluff body part.
Preferably, the front end of described bluff body part is provided with the steel plate be welded on described nozzle inside casing inwall.
More preferred, described steel plate and described nozzle inside casing inwall are by being welded to connect.
More preferred, described steel plate is provided with 1 circular hole, described bluff body part front end is positioned at the circular hole of described steel plate.
More preferred, the distance between the inwall of the circular hole of described bluff body part front end outer wall and described steel plate is not less than 20mm.
More preferred, described steel plate is also provided with at least 1 ventilating opening.
Preferably, described shackle member is U-shaped.
Preferably, described shackle member is positioned at the axis place of described boiler-burner nozzle.
The application compared with prior art, its beneficial effect is: there is certain interval between bluff body part and steel plate, make it can steel plate free wxpansion relatively, in addition, also certain interval is there is between bluff body part and nozzle, eliminate between bluff body part and nozzle due to stress that the temperature difference produces, extend the service life of burner nozzle, by U-shaped shackle member and the clamping of bluff body part, play a supporting role, after nozzle uses, when there are the wearing and tearing of bluff body part, can directly change bluff body part, and by whole nozzle exchange, cost need not have been saved.
Accompanying drawing explanation
Fig. 1 is the structure chart of the application's burner nozzle.
Detailed description of the invention
In order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Boiler-burner nozzle as shown in Figure 1, described boiler-burner nozzle comprises nozzle inside casing 1, nozzle housing 2, bluff body part 3, connected by gusset 4 between described nozzle inside casing 1, nozzle housing 2, the inwall of described nozzle inside casing 1 is provided with shackle member 5, described shackle member 5 and the clamping of described bluff body part 3, described shackle member 5 is U-shaped, described shackle member 5 is positioned at the axis place of described boiler-burner nozzle, and the front end of described bluff body part 3 is provided with the steel plate 6 be welded on described nozzle inside casing 1 inwall.
Wherein, described steel plate 6 and described nozzle inside casing 1 inwall are by being welded to connect, described steel plate 6 is provided with 1 circular hole 7, described bluff body part 3 front end is positioned at the circular hole 7 of described steel plate 6, distance between the inwall of the circular hole 7 of described bluff body part 3 front end outer wall and described steel plate 6 is not less than 20mm, and described steel plate 6 is also provided with at least 1 ventilating opening 8.
In technical scheme, distance between bluff body part 3 and steel plate 6 is not less than 20mm, make it can steel plate 6 free wxpansion relatively, in addition, also certain interval is there is between bluff body part 3 and nozzle inside casing 1, eliminate between bluff body part 3 and nozzle inside casing 1 due to stress that the temperature difference produces, extend the service life of burner nozzle, by U-shaped shackle member 5 and bluff body part 3 clamping, play a supporting role, after nozzle uses, when generation bluff body part 3 weares and teares, can directly change bluff body part 3, and need not by whole nozzle exchange, cost-saving.
Below be only preferred embodiment of the present utility model, it should be pointed out that above-mentioned preferred embodiment should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. a boiler-burner nozzle, it is characterized in that: described boiler-burner nozzle comprises nozzle inside casing (1), nozzle housing (2), bluff body part (3), connected by gusset (4) between described nozzle inside casing (1), nozzle housing (2), the inwall of described nozzle inside casing (1) is provided with shackle member (5), described shackle member (5) and the clamping of described bluff body part (3).
2. a kind of boiler-burner nozzle according to claim 1, is characterized in that: the front end of described bluff body part (3) is provided with the steel plate (6) be welded on described nozzle inside casing (1) inwall.
3. a kind of boiler-burner nozzle according to claim 2, is characterized in that: described steel plate (6) and described nozzle inside casing (1) inwall are by being welded to connect.
4. a kind of boiler-burner nozzle according to claim 2, it is characterized in that: described steel plate (6) is provided with 1 circular hole (7), described bluff body part (3) front end is positioned at the circular hole (7) of described steel plate (6).
5. a kind of boiler-burner nozzle according to claim 4, is characterized in that: the distance between the inwall of the circular hole (7) of described bluff body part (3) front end outer wall and described steel plate (6) is not less than 20mm.
6. a kind of boiler-burner nozzle according to claim 2, is characterized in that: described steel plate (6) is also provided with at least 1 ventilating opening (8).
7. a kind of boiler-burner nozzle according to claim 1, is characterized in that: described shackle member (5) is for U-shaped.
8. a kind of boiler-burner nozzle according to claim 1, is characterized in that: described shackle member (5) is positioned at the axis place of described boiler-burner nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520479849.1U CN204880099U (en) | 2015-07-02 | 2015-07-02 | Boiler combustion ware nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520479849.1U CN204880099U (en) | 2015-07-02 | 2015-07-02 | Boiler combustion ware nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204880099U true CN204880099U (en) | 2015-12-16 |
Family
ID=54824467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520479849.1U Expired - Fee Related CN204880099U (en) | 2015-07-02 | 2015-07-02 | Boiler combustion ware nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204880099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185875A (en) * | 2018-08-26 | 2019-01-11 | 苏州上春仪监测程控设备制造有限公司 | A kind of boiler-burner silicon carbide nozzle |
-
2015
- 2015-07-02 CN CN201520479849.1U patent/CN204880099U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185875A (en) * | 2018-08-26 | 2019-01-11 | 苏州上春仪监测程控设备制造有限公司 | A kind of boiler-burner silicon carbide nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20151216 Termination date: 20180702 |