CN203586194U - Wearable alloy composite pipe - Google Patents
Wearable alloy composite pipe Download PDFInfo
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- CN203586194U CN203586194U CN201320755689.XU CN201320755689U CN203586194U CN 203586194 U CN203586194 U CN 203586194U CN 201320755689 U CN201320755689 U CN 201320755689U CN 203586194 U CN203586194 U CN 203586194U
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- pipe
- water
- boiler
- cooling wall
- wearable
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Abstract
The utility model discloses wearable design of a fluidized bed boiler water-cooling wall pipe, and particularly relates to a wearable alloy composite pipe which can be used for a fluidized boiler. The wearable alloy composite pipe comprises a water-cooling wall pipe, a wearable alloy protection tile and a connector pipe, wherein the outer surface of the water-cooling wall pipe is hooped by buckling two semicircular wearable alloy protection tiles, the two wearable alloy protection tiles are welded together by utilizing a strip-shaped connecting block in a seam between the buckled wearable alloy protection tiles, the tail end of the water-cooling wall pipe is connected with the connector pipe in a welding manner, the wall of the connection end of the connector pipe is provided with a collar-shaped groove, the diameter of the collar-shaped groove is identical to that of the water-cooling wall pipe, and then the connector pipe is connected with the water-cooling wall pipe. The other end of the connecting pipe is directly connected with a pipeline inside the boiler. The wearable alloy composite pipe is low in production cost, small in machining difficulty and not subjected to the limitation of the length of the water-cooling wall pipe; the abrasion difficulty of the boiler water-cooling wall pipe can be effectively and thoroughly solved, the service life of the boiler can be prolonged, the running cost of the boiler can be reduced, the energy is saved, and the consumption is reduced.
Description
Technical field
The utility model relates to power plant's fluidized-bed combustion boiler technical field, is the wear-resisting design of fluid bed boiler water-cooling wall pipe, is specially fluidized-bed combustion boiler antifriction alloy multiple tube.
Background technology
Current, along with energy day is becoming tight, energy prices are constantly soaring, how to reduce energy consumption, and the utilization ratio that improves the energy has become every profession and trade needs the eager problem solving.In thermal power plant boiler, CFBB is owing to having strengthened the circulating combustion utilization of coal, and to more extensive compared with boilers such as fluidized bed furnace, coal-powder boilers in the scope of application in coal, become China and even the universally acknowledged higher boiler of cost performance.But CFBB is due to factors, and boiler is even more serious compared with other type of furnace wearing and tearing, and life cycle is shorter.How to solve boiler abrasion problem, improve boiler life cycle, become the task of top priority of CFBB.
The wearing and tearing of CFBB, are mainly reflected in the loss of water screen tube in stove.In order to solve the loss of pipeline, often adopt electric arc spraying or cover tile.Electric arc spraying forms spraying protective layer on pipeline, but it uses generally about 1 year, and the life-span is shorter.Cover tile and conventionally the outer wall car of original water screen tube is removed to one deck, process groove, then at groove, cover wear-resisting watt of layer, pipeline and other pipe diameters after keeping covering watt are basic identical.But due to the restriction of machine tooling length, duct length, cover watt length and be all restricted, need to connect into a pipeline with multistage pipeline welding, its processing cost is high, difficulty of processing is large.
Summary of the invention
The utility model, for the alteration of circulating fluidized bed boiler problem, has designed a kind of antifriction alloy multiple tube, the water screen tube in transformation, replacement stove.Design of the present utility model is as follows: antifriction alloy multiple tube, comprise that water screen tube, antifriction alloy protect watt and junction block, the outer surface of water screen tube, with two blocks of semicircle antifriction alloys, protect a watt make-up banding, seam crossing between the antifriction alloy of make-up protects watt, with strip contiguous block, two blocks of antifriction alloys are protected and watt welded together, the end of water screen tube, welding point pipe, the link tube wall of junction block, car goes out a truncated annulus groove, and diameter is identical with water screen tube diameter, then welds with water screen tube.The other end of tube connector is directly connected with boiler interior conduit.
Many pipelines in boiler, two adjacent antifriction alloy multiple tubes, its contiguous block is welded to each other, and forms a discharge pipe.Be mainly used in the comparatively serious pipeline of loss in boiler.
Antifriction alloy multiple tube, its production cost is low, and difficulty of processing is little, and be not subject to the restriction of water screen tube length, its antifriction alloy multiple tube can solve the wear problem of boiler water-wall tube effectively, thoroughly, prolonged boiler service life, reduce boiler operatiopn cost, energy-saving and cost-reducing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that antifriction alloy protects tile structure schematic diagram;
Fig. 3 is junction block structural representation;
Fig. 4 is connecting block structure schematic diagram;
Fig. 5 is row's shape pipeline configuration schematic diagram that antifriction alloy multiple tube forms;
Wherein, water screen tube 1, antifriction alloy protects watts 2,3, contiguous block 4, junction block 5, annular groove 6.
The specific embodiment
Below in conjunction with specific embodiment and Figure of description, the utility model is described in further detail.Specific embodiment described herein is only in order to explain the utility model, and is not used in restriction the utility model.
Embodiment: as shown in Fig. 1 ~ Fig. 4, antifriction alloy multiple tube, for replacing the water screen tube of CFBB, is protected watt and junction block forms by internal layer water screen tube, outer antifriction alloy.Water screen tube 1, diameter 51mm, thick 5mm, outer protects watt 2,3 make-up bandings with two blocks of thick semicircle antifriction alloys of 4mm, and two blocks of antifriction alloys of make-up protect watt with strip contiguous block 4 seam welding, formation the outer protection tube.Junction block 5 diameter 60mm, thick 8mm, goes out a truncated annulus groove 6 at its one end car, and car becomes diameter and water screen tube 1 diameter formed objects, then with water screen tube 1 end on welding.The junction block of antifriction alloy multiple tube can be directly and in boiler pipeline welding, and need not carry out again smear metal processing.Two adjacent antifriction alloy multiple tubes, its contiguous block is welded to each other, and can form row's shape pipeline, as shown in Figure 5.
Antifriction alloy multiple tube, has successfully solved the wearing and tearing difficult problem of CFBB, can guarantee its friction durability more than 4 years, can save a large amount of operation costs for power plant.
Claims (2)
1. antifriction alloy multiple tube, comprise that water screen tube, antifriction alloy protect watt and junction block, it is characterized in that: the outer surface of water screen tube (1), with two blocks of semicircle antifriction alloys, protect watt (2, a 3) make-up banding, seam crossing between the antifriction alloy of make-up protects watt, with strip contiguous block (4), two blocks of antifriction alloys are protected and watt welded together, the end of water screen tube (1), welding point pipe (5), the link tube wall of junction block (5), car goes out a truncated annulus groove (6), and diameter is identical with water screen tube diameter.
2. antifriction alloy multiple tube according to claim 1, is characterized in that: two adjacent antifriction alloy multiple tubes, its contiguous block is welded to each other, and forms a discharge pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755689.XU CN203586194U (en) | 2013-11-27 | 2013-11-27 | Wearable alloy composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755689.XU CN203586194U (en) | 2013-11-27 | 2013-11-27 | Wearable alloy composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203586194U true CN203586194U (en) | 2014-05-07 |
Family
ID=50584105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320755689.XU Expired - Fee Related CN203586194U (en) | 2013-11-27 | 2013-11-27 | Wearable alloy composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203586194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432145A (en) * | 2021-06-21 | 2021-09-24 | 东方电气集团东方锅炉股份有限公司 | Cold ash bucket with vertical membrane type water-cooled wall of boiler |
-
2013
- 2013-11-27 CN CN201320755689.XU patent/CN203586194U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432145A (en) * | 2021-06-21 | 2021-09-24 | 东方电气集团东方锅炉股份有限公司 | Cold ash bucket with vertical membrane type water-cooled wall of boiler |
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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: 20140507 Termination date: 20171127 |