CN2926820Y - Water-cooling wall abrasive cladding pipe of fluidized bed boiler - Google Patents
Water-cooling wall abrasive cladding pipe of fluidized bed boiler Download PDFInfo
- Publication number
- CN2926820Y CN2926820Y CN 200620062007 CN200620062007U CN2926820Y CN 2926820 Y CN2926820 Y CN 2926820Y CN 200620062007 CN200620062007 CN 200620062007 CN 200620062007 U CN200620062007 U CN 200620062007U CN 2926820 Y CN2926820 Y CN 2926820Y
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- CN
- China
- Prior art keywords
- water
- cooling wall
- abrasionproof
- bed boiler
- screen tube
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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 - Fee Related
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a water-cooling wall anti-wear coating pipe of the fluidized-bed boiler, which comprises water-cooling wall pipe, a cambered flute provided on the pipe wall along the axial direction of the water-cooling wall pipe and at least two anti-wear protecting tiles matched with the shape of the cambered flute and arranged in the cambered flute. The two anti-wear protecting tiles are successively arranged in the cambered flute along the axial direction of the water-cooling wall pipe and welded with the water-cooling wall pipe into one entity. The junction of the two adjacent anti-wear protecting tiles is welded into one entity, so a wear resistant layer is formed at the cambered flute and then is coated onto the cambered flute of the water-cooling wall pipe and the upper part of the wear resistant layer is parallel and level to the water-cooling wall pipe external circumference. The utility model can reduce the abrasion of the water-cooling wall pipe effectively and prolong the service life of the water-cooling wall pipe so as to greatly increase the running period of the fluidized-bed boiler and effectively reduce the running cost of circulating fluidized-bed boiler.
Description
Technical field
The utility model relates to the fluidization field, more particularly, relates to the architecture advances of fluid bed boiler water-cooling wall pipe, and other modes form the step elimination at present.
Background technology
CFBB is promoted the use of rapidly all over the world with efficiency of combustion height, advantage such as fuel tolerance is strong and environmental benefit is good, and is especially very abundant in China's coal resource, thereby the CFBB development is very fast.Develop into present operation and more than 30 of the 1000T/H that builds from the nineties capacity 35～75T/H.The domestic CFBB that has dropped into generating of rough estimates reaches more than 2000, these boilers wear and tear easily owing to water screen tube, cause water screen tube short service life, thereby influence the cycle of operation of CFBB, cause the production cost height of CFBB, seriously restricted applying of CFBB.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective of the prior art, a kind of simple in structure, wearing and tearing that can effectively reduce water screen tube are provided, prolong the service life of water screen tube, thereby increase substantially the cycle of operation of CFBB, effectively reduce the production cost of CFBB.
For achieving the above object, the technical scheme that the utility model provides is as follows: construct the coated pipe of a kind of fluid bed boiler water-cooling wall abrasionproof, comprise water screen tube, along offering an arc groove on the axial tube wall of described water screen tube, at least being provided with two in this arc groove protects watt with the suitable abrasionproof of its shape, described abrasionproof protects watt along water screen tube axially packs in the arc groove successively and is welded as a whole with extraordinary wlding continuously with water screen tube, thereby form a wearing layer at the arc groove place, this wearing layer is coated on the arc groove of water screen tube, and its top is mutually concordant with the excircle of water screen tube.
It watt is to be formed by the 1CrNi20Si2 casting that described abrasionproof protects, and also can be formed by ZG8Cr33Ni9N or ZG8Cr26Ni4Mn3NR casting according to the coal difference.
The length that described abrasionproof protects watt is between 80～150mm.
The two ends of described water screen tube are provided with lead angle.
The beneficial effect of the coated pipe of fluid bed boiler water-cooling wall abrasionproof of the present invention is: by offer an arc groove on the tube wall axial along water screen tube, prevent the needs that wear and tear according to the water screen tube position that rubs easily, the length of the arc groove of design, protect watt at the suitable abrasionproof of the installing of this arc groove and its shape, described abrasionproof protect watt along water screen tube axially pack into successively in the arc groove and with the water screen tube continuous welding be one, the junction that adjacent two abrasionproofs protect watt is welded as a whole, thereby at arc groove place shape one wearing layer, this wearing layer is coated on the arc groove of water screen tube, and its top is mutually concordant with the excircle of water screen tube.Can effectively reduce the wearing and tearing of water screen tube, prolong the service life of water screen tube, thereby increase substantially the cycle of operation of CFBB, effectively reduce the production cost of CFBB.
Below in conjunction with drawings and Examples the coated pipe of fluid bed boiler water-cooling wall abrasionproof described in the utility model is described further:
Description of drawings
Fig. 1 is the front view of the coated pipe of the utility model fluid bed boiler water-cooling wall abrasionproof;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the partial enlarged drawing of Fig. 2.
The specific embodiment
Below be the most preferred embodiment of the coated pipe of fluid bed boiler water-cooling wall abrasionproof described in the utility model, therefore do not limit protection domain of the present utility model.
With reference to Fig. 1, Fig. 2, provide a kind of fluid bed boiler water-cooling wall abrasionproof coated pipe, comprise water screen tube 1, the caliber of described water screen tube 1 is DN60 * 8 or DN51 * 8, axially car is gone 4mm to be processed into arc groove 2 at water screen tube 1 along tube wall, at least be provided with two in this arc groove 2 and protect watts 3 with the suitable abrasionproof of its shape, described abrasionproof protect watts 3 along water screen tube 1 axially pack into successively in the arc groove 2 and with water screen tube 1 continuous welding be one, adjacent two abrasionproofs protect watts 3 junction and are welded as a whole, thereby at arc groove 2 place's shapes one wearing layer 4, this wearing layer 4 is coated on the arc groove 2 of water screen tube 1, and its top is mutually concordant with the excircle of water screen tube 1.
Abrasionproof protect watts 3 axially pack in the arc groove 2 successively and be one along water screen tube 1 with water screen tube 1 continuous welding after, adopting lathe to carry out car puts down, make the external diameter of wearing layer 4 identical with the external diameter of water screen tube 1, guarantee that water screen tube 1 does not have projection, effectively reduce the wearing and tearing of water screen tube, reach long-term wear-resisting purpose, the cycle of operation of CFBB can be from more than 1～2 original month director to 12 month, and can reach 3～5 years the service life of circulating fluidized bed boiler water-cooling wall pipe.
It is to be formed by the 1CrNi20Si2 casting that described abrasionproof protects watts 3, is also formed by ZG8Cr33Ni9N or ZG8Cr26Ni4Mn3NR casting.
Described abrasionproof protects watts 3 length between 80～150mm, and its optimum length is 120mm.
Described abrasionproof protects watts 3 inner surface and is smooth surface through polishing.
The two ends of described water screen tube 1 are provided with lead angle, are convenient to the installation of water screen tube 1.
Claims (6)
1, the coated pipe of a kind of fluid bed boiler water-cooling wall abrasionproof, comprise water screen tube, it is characterized in that, along offering an arc groove on the axial tube wall of described water screen tube, at least being provided with two in this arc groove protects watt with the suitable abrasionproof of its shape, described abrasionproof protect watt along water screen tube axially pack into successively in the arc groove and with the water screen tube continuous welding be one, the junction that adjacent two abrasionproofs protect watt is welded as a whole, thereby form a wearing layer at the arc groove place, this wearing layer is coated on the arc groove of water screen tube, and its top is mutually concordant with the excircle of water screen tube.
2, the coated pipe of fluid bed boiler water-cooling wall abrasionproof according to claim 1 is characterized in that, the length that described abrasionproof protects watt can effectively absorb two kinds of material heat expansion differences between 80～150mm.
3, the coated pipe of fluid bed boiler water-cooling wall abrasionproof according to claim 2 is characterized in that, the most reasonable length that is provided with that described abrasionproof protects watt is 120mm.
4, the coated pipe of fluid bed boiler water-cooling wall abrasionproof according to claim 1 is characterized in that, the inner surface that described abrasionproof protects watt is a smooth surface.
5, the coated pipe of fluid bed boiler water-cooling wall abrasionproof according to claim 1 is characterized in that the two ends of described water screen tube are provided with lead angle, can reduce local resistance.
6, the coated pipe of fluid bed boiler water-cooling wall abrasionproof according to claim 1 is characterized in that, the caliber of described water screen tube is DN60 * 8 or DN51 * 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620062007 CN2926820Y (en) | 2006-07-25 | 2006-07-25 | Water-cooling wall abrasive cladding pipe of fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620062007 CN2926820Y (en) | 2006-07-25 | 2006-07-25 | Water-cooling wall abrasive cladding pipe of fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2926820Y true CN2926820Y (en) | 2007-07-25 |
Family
ID=38281067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620062007 Expired - Fee Related CN2926820Y (en) | 2006-07-25 | 2006-07-25 | Water-cooling wall abrasive cladding pipe of fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2926820Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374657A (en) * | 2010-08-07 | 2012-03-14 | 李新明 | Thermal-storage and high-temperature-resistant heat exchange steel tube for hot blast furnace |
| US10323842B2 (en) * | 2017-03-03 | 2019-06-18 | Sumitomo SHI FW Energia Oy | Watertube panel portion and a method of manufacturing a watertube panel portion in a fluidized bed reactor |
-
2006
- 2006-07-25 CN CN 200620062007 patent/CN2926820Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374657A (en) * | 2010-08-07 | 2012-03-14 | 李新明 | Thermal-storage and high-temperature-resistant heat exchange steel tube for hot blast furnace |
| US10323842B2 (en) * | 2017-03-03 | 2019-06-18 | Sumitomo SHI FW Energia Oy | Watertube panel portion and a method of manufacturing a watertube panel portion in a fluidized bed reactor |
| CN110582670A (en) * | 2017-03-03 | 2019-12-17 | 住友重工福威能源有限公司 | Water panel section and method for manufacturing water panel section in fluidized bed reactor |
| AU2018228802B2 (en) * | 2017-03-03 | 2020-04-30 | Sumitomo SHI FW Energia Oy | Watertube panel portion and a method of manufacturing a watertube panel portion in a fluidized bed reactor |
| EP3589888B1 (en) | 2017-03-03 | 2021-04-07 | Sumitomo SHI FW Energia Oy | Watertube panel portion and a method of manufacturing a watertube panel portion in a fluidized bed reactor |
| CN110582670B (en) * | 2017-03-03 | 2022-02-11 | 住友重机械福惠能源有限公司 | Water panel section and method for manufacturing water panel section in fluidized bed reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070725 Termination date: 20130725 |