CN201487942U - Anti-wear buried pipe of fluidized bed combustion boiler - Google Patents
Anti-wear buried pipe of fluidized bed combustion boiler Download PDFInfo
- Publication number
- CN201487942U CN201487942U CN2008201761866U CN200820176186U CN201487942U CN 201487942 U CN201487942 U CN 201487942U CN 2008201761866 U CN2008201761866 U CN 2008201761866U CN 200820176186 U CN200820176186 U CN 200820176186U CN 201487942 U CN201487942 U CN 201487942U
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- wear
- pipe laying
- resistant
- fluidized bed
- buried pipe
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Abstract
The utility model provides an anti-wear buried pipe of a fluidized bed combustion boiler, which relates to a buried pipe capable of reducing the erosive wear of high-temperature materials to the buried pipe during the ebullition process when a fluidized bed combustion boiler works. The anti-wear buried pipe mainly consists of a buried pipe, anti-wear rings and anti-wear fins. The utility model is characterized in that both the anti-wear rings and the anti-wear fins are welded in different positions of the buried pipe, so a large number of high-temperature materials in the furnace chamber do not directly scour the pipe wall of the buried pipe but scour the anti-wear rings and the anti-wear fins welded on the outer wall of the buried pipe when the fluidized bed combustion boiler works. Thus, the buried pipe can not be worn, the service life of the boiler buried pipe is extended, the normal safe running of the boiler is ensured, the maintenance fees of the boiler are reduced, and the blowing out times of the boiler in the running process are reduced.
Description
Technical field
The utility model relates to a kind of wear-resistant pipe laying of fluidized bed combustion boiler that is used for, and particularly relates to a kind of fluidized bed combustion boiler and reduce high-temperature material erosive wear to pipe laying in boiling process when operation.
Background technology
In China, be Boiling Combustion at present for brown coal optimal combustion system in industrial boiler.Fluidized bed combustion boiler obtains general application and is approved by the user in the northern area of China industrial development.In the boiling furnace combustion running, the pipe laying heating surface accounts for the 40%-50% of whole boiler as its caloric receptivity of main heating surface of boiler, is the indispensable visual plant parts of boiling boiler.In the fluidized bed furnace running, the serious wear of pipe laying is changed frequently, and the short problem of life cycle never is well solved.Therefore, design a kind of fluidized bed combustion boiler that is used for and prevent that at running buried pipe abrasion is too fast, the wear-resistant pipe laying that prolongs pipe laying service life is the key problem in technology that addresses the above problem.
Summary of the invention
The technical problem that the utility model solved is to provide a kind of fluidized bed combustion boiler wear-resistant pipe laying.For achieving the above object, the utility model provides a kind of wear-resistant pipe laying of fluidized bed combustion boiler that is used for.Mainly by pipe laying, wear-resistant ring, wear-resistant fin is formed.
The wear-resistant pipe laying of the utility model fluidized bed combustion boiler is characterized in that: described pipe laying material is the GB808720# steel seamless steel tube, and the pipe specification is φ 51X5.
The wear-resistant pipe laying of the utility model fluidized bed combustion boiler, it is characterized in that: described wear-resistant ring uses φ 10 high-strength wearable steel reinforcing bars to make, it is that R25.5 is semi-circular that reinforcing bar is bent into internal diameter, is welded in pipe laying outer wall vertical section, and welds 5 wear-resistant rings at least in pipe laying outer wall vertical section.
The wear-resistant pipe laying of the utility model fluidized bed combustion boiler, it is characterized in that: described wear-resistant fin uses 200X 12X 5 high-strength wearable steel band steels to make, wear-resistant fin evenly vertically reaches circumferencial direction along pipe laying and is welded in pipe laying lower flat straight section outer wall, and at least 5 wear-resistant fins of pipe laying lower flat straight section outer wall welding.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is the overall weldering and the figure of the wear-resistant pipe laying of a kind of fluidized bed combustion boiler
Fig. 2 is the A-A cutaway view of Fig. 1
Fig. 3 is the B-B cutaway view of Fig. 1
Wherein: Reference numeral
1-boiler pipe laying, the wear-resistant ring of 2-, the wear-resistant fin of 3-
The specific embodiment
Be described specifically below in conjunction with the structural principle and the operation principle of accompanying drawing utility model:
See also Fig. 1, Fig. 2, Fig. 3 overall pattern of the present utility model and cutaway view.
Pipe laying as shown in the figure is the main heating surface of fluidized bed combustion boiler, environment temperature is about 950 ℃, it is that spacing is welded with a plurality of wear-resistant rings 2 equably that the wear-resistant pipe laying of fluidized bed furnace is exactly on pipe laying vertical section and lower, curved, section with 35mm, wear-resistant ring adopts φ 10 high-strength wearable steel reinforcing bars to make, it is that R25.5 is semi-circular that reinforcing bar is bent into internal diameter, and just in time the external diameter with pipe laying matches; Wear-resistant fin 3 is prolonged the oblique straight section of pipe laying by certain length and even angle ground and pipe laying lower circumference side is welded on the pipe laying, the material of abrasionproof fin is a high-strength wearable steel steel plate, long 200mm, wide 12mm, thickness 5mm.After wear-resistant ring, wear-resistant fin be welded on each position on the pipe laying respectively, pipe laying is installed in the fluidized bed combustion boiler.
In the fluidized bed combustion boiler running, because a large amount of high-temperature materials wash away the boiler pipe laying in the burner hearth in boiling process, material is very serious to the abrasion condition of pipe laying, boiler body inside is in high pressure conditions, buried pipe abrasion arrives to a certain degree, and pipe laying can not bear the pressure in the load boiler body, will cause the pipe laying cracking, influence the normal operation of boiler, be directed at boiler shutdown.This abrasionproof pipe laying is to utilize comparatively simple technology that the pipe laying outer wall is protected; make boiler in running; the high-temperature material of boiling does not directly wash away the tube wall of pipe laying; and wash away wear-resistant ring and the wear-resistant fin that is connected in the pipe laying outer wall; thereby make pipe laying not frayed, in the service life of prolonged boiler pipe laying, guarantee that the safety of boiler is normally moved; reduce the expense of boiler use and maintenance, reduce the blowing out number of times of boiler in running.
The wear-resistant pipe laying project organization of this Boiling Combustion pipe furnace is reasonable, novel unique, and Practical Performance is strong, and manufacturing process is simple, operates easily, is suitable for the fluidized bed furnace of various tonnages, can be reached for the purpose of energy-saving and emission-reduction preferably.
Certainly; the utility model can also have various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (4)
1. the wear-resistant pipe laying of fluidized bed combustion boiler mainly is made up of pipe laying, wear-resistant ring, wear-resistant fin, it is characterized in that: wear-resistant ring, wear-resistant fin are welded on the pipe laying.
2. the wear-resistant pipe laying of fluidized bed combustion boiler according to claim 1: it is characterized in that: pipe laying adopts φ 51 * 5 thick walled steel tubes to make.
3. the wear-resistant pipe laying of fluidized bed combustion boiler according to claim 1, it is characterized in that: described wear-resistant ring uses φ 10 high-strength wearable steel reinforcing bars to make, it is that R25.5 is semi-circular that reinforcing bar is bent into internal diameter, with every 35mm is that spacing is welded on the vertical section and lower, curved, section of pipe laying equably, and welds 5 wear-resistant rings at least in pipe laying outer wall vertical section.
4. the wear-resistant pipe laying of fluidized bed combustion boiler according to claim 1, it is characterized in that: described wear-resistant fin uses 200 * 12 * 5 high-strength wearable steel band steels to make, wear-resistant fin evenly vertically reaches circumferencial direction along pipe laying and is welded in pipe laying lower flat straight section outer wall, and at least 5 wear-resistant fins of pipe laying lower flat straight section outer wall welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201761866U CN201487942U (en) | 2008-11-11 | 2008-11-11 | Anti-wear buried pipe of fluidized bed combustion boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201761866U CN201487942U (en) | 2008-11-11 | 2008-11-11 | Anti-wear buried pipe of fluidized bed combustion boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487942U true CN201487942U (en) | 2010-05-26 |
Family
ID=42426821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008201761866U Expired - Fee Related CN201487942U (en) | 2008-11-11 | 2008-11-11 | Anti-wear buried pipe of fluidized bed combustion boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654996A (en) * | 2017-09-29 | 2018-02-02 | 苏州海陆重工股份有限公司 | The cooling device of fluidized bed furnace boiling bed |
| CN110285409A (en) * | 2019-06-14 | 2019-09-27 | 龙口矿业集团有限公司 | A kind of fluidized-bed combustion boiler staggeredly blocks abrasionproof method |
-
2008
- 2008-11-11 CN CN2008201761866U patent/CN201487942U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654996A (en) * | 2017-09-29 | 2018-02-02 | 苏州海陆重工股份有限公司 | The cooling device of fluidized bed furnace boiling bed |
| CN110285409A (en) * | 2019-06-14 | 2019-09-27 | 龙口矿业集团有限公司 | A kind of fluidized-bed combustion boiler staggeredly blocks abrasionproof method |
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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 |
Granted publication date: 20100526 Termination date: 20171111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |